CN207540193U

CN207540193U - Absorber and absorption heat pump

Info

Publication number: CN207540193U
Application number: CN201721440612.8U
Authority: CN
Inventors: 竹村与四郎
Original assignee: Ebara Refrigeration Equipment and Systems Co Ltd
Current assignee: Ebara Refrigeration Equipment and Systems Co Ltd
Priority date: 2016-11-08
Filing date: 2017-11-01
Publication date: 2018-06-26
Anticipated expiration: 2027-11-01
Also published as: JP2018080907A

Abstract

The utility model provides absorber and absorption heat pump.Absorber (10) has for being multiple heat-transfer pipes (12) of the heated medium (W) in internal flow of liquid at least partially, absorber is also equipped with inversion portion (14r), it will be guided in the heated medium (W) of the internal flow of heat-transfer pipe (12A) in a manner of being flowed round about in the inside of other heat-transfer pipes (12B) to other heat-transfer pipes (12B), multiple heat-transfer pipes are configured to mulitpath (P1 by inversion portion, Pf), mulitpath is respectively structured as flow path cross sectional area as same degree, utilize the absorption heat generated when the outside absorbing liquid (Sa) of heat-transfer pipe absorbs steam (Ve) of refrigerant, heat the heated medium in heat-transfer pipe internal flow, the liquid (Wq) of heated medium is made to boil.Absorption heat pump has：Absorber；Regenerator, the absorbing liquid (Sw) that concentration reduces by the steam that refrigerant is absorbed in absorber are imported and are heated, and refrigerant is made to be detached from and the concentration of absorbing liquid is made to increase.

Description

Absorber and absorption heat pump

Technical field

The utility model is related to absorber and absorption heat pump, more particularly to the heat transfer for avoiding the occurrence of liquid and not flowing into Pipe, so as to absorber and absorption heat pump that the volatility of heated medium is inhibited to reduce.

Background technology

There is known following absorption heat pump, i.e.,：The refrigerant vapour generated in evaporator to absorber is guided, is utilized Make the absorption heat that absorbent solution generates when absorbing refrigerant vapour in absorber, heat the liquid of heated medium and generate quilt The steam of heat medium.When the liquid of heated medium becomes steam, in order to avoid causing quilt due to volume increases by obstruction The flowing of heat medium becomes unstable, therefore absorber is formed as follows.In the absorber, for heated medium More are flatly configured in the pipe of internal flow.Hydroecium is respectively arranged at the both ends of more pipes.Hydroecium is drawn by multiple demarcation strips It is divided into multiple.More pipes are being connected with using each hydroecium that demarcation strip marks off.In addition, setting demarcation strip is to divide water Room, the heated medium flowed as stream of fluid as a whole, to be made integrally to become court from below each pipe and hydroecium Flowing upward.In addition, demarcation strip is set as：The stream of the set of pipe flowed for the heated medium flowed out from some hydroecium The gross area of road sectional area, than the gross area of the flow path cross sectional area of the set of the pipe of the heated medium flowing for flowing into the hydroecium Greatly (for example, referring to patent document 1).

Patent document 1：Japanese Unexamined Patent Publication 2010-164248 bulletins (0034~0037 grade sections)

The heated medium flowed in pipe is heated by absorbing heat, therefore part evaporation and the adjoint gas of liquid Body flows.At this point, for example in the case where heated medium is water, since the volume of the volume ratio liquid of the gas of evaporation is several greatly Hundred times, therefore in some hydroecium, flowed out in the pipe group of heated medium from below and be flowed into the pipe group of next top When, there is a situation where the pipe for being in the presence of that liquid does not flow into due to flowing.In the pipe not flowed into liquid, absorbing heat is not had It is transferred to heated medium to effect.

Utility model content

The utility model does not flow into view of the above subject, it is intended that providing and avoiding the occurrence of the liquid of heated medium Heat-transfer pipe, so as to absorber and absorption heat pump that the volatility of heated medium is inhibited to reduce.

To achieve these goals, the absorber of the first method of the utility model, such as shown in Fig. 1 and Fig. 2, setting In absorption heat pump 1 (with reference to Fig. 1), which is drawn by the absorption heat pump cycle of absorbing liquid S and refrigerant V The heat of the heat source fluid h of importing is taken, wherein, absorber 10 has multiple heat-transfer pipes 12, they are liquid at least part Heated medium W in internal flow, absorber 10 is also equipped with inversion portion 14r, and inversion portion 14r will be in heat-transfer pipe 12A The heated medium W of portion's flowing in a manner of flowing to other heat-transfer pipes 12B round about in the inside of other heat-transfer pipes 12B Guiding, multiple heat-transfer pipes 12 are configured to mulitpath P1, Pf by inversion portion 14r, and mulitpath P1, Pf are respectively structured as flowing Road sectional area becomes same degree, and absorber 10 is configured to：Refrigerant is absorbed using the outside absorbing liquid Sa in heat-transfer pipe 12 The absorption heat generated during steam Ve, heats the heated medium W in the internal flow of heat-transfer pipe 12, makes the liquid of heated medium Wq boils.

If forming in this way, when the ratio of the steam of heated medium increases with the downstream side of flowing is gone to, respectively The flow path cross sectional area in path is configured to become same degree, therefore with the downstream side for going to flowing, the flow velocity of heated medium Increase, the liquid of heated medium is flowed into each heat-transfer pipe with the flowing of the steam of heated medium, so as to avoid The appearance for the heat-transfer pipe that liquid does not flow into, can inhibit the volatility of the liquid of heated medium reduces.

In addition, the absorber of the second method of the utility model, referring for example to shown in Fig. 2, in above-mentioned the utility model In the absorber 10 of first method, mulitpath P1, Pf are respectively structured as flow path cross sectional area equalization.

If forming in this way, following balance can be realized, i.e.,：Inhibit the path then heated medium with downstream side The more increased flow resistance of flow velocity increase and inhibit volatility reduce between balance.

In addition, the absorber of the Third Way of the utility model, referring for example to shown in Fig. 2, in above-mentioned the utility model In the absorber 10 of first method, mulitpath P1, Pf are respectively structured as：The ratio between flow path cross sectional area is in and can avoid being heated The defined range that the heat-transfer pipe 12 that the liquid Wq of medium is not flowed into occurs.

If forming in this way, the heat-transfer pipe that liquid does not flow into can be avoided the occurrence of.

In addition, the absorber of the fourth way of the utility model, referring for example to shown in Fig. 2, in above-mentioned the utility model In the absorber 10 of first method, mulitpath P1, Pf are respectively structured as：The ratio between flow path cross sectional area, which is in, can avoid following journey The defined range that the heat-transfer pipe 12 that the liquid Wq of the heated medium of few flow of degree is flowed into occurs, the degree refer to substantially The reduction of the yield of the steam of heated medium W is more than the degree of allowed band.

If forming in this way, the heat-transfer pipe that liquid does not flow into can not only be avoided to occur, and the quilt flowed into can be avoided The heat-transfer pipe that the flow of the liquid of heat medium is very few occurs, so as to further suppress the reduction of volatility.

In addition, the absorber of the 5th mode of the utility model, such as shown in Fig. 2, the of above-mentioned the utility model In the absorber 10 of either type in one to fourth way, has gas-liquid separator 80, by the liquid Wq of heated medium W It is detached with gas Wv, mulitpath is configured to include first path P1 and final path P f, and the first path P1 is to be heated The path that medium W is initially flowed into, the final path P f are the paths that heated medium W is finally flowed into, 80 structure of gas-liquid separator Become：The heated medium Wm of gas-liquid mixture phase from final path P f is imported, and the liquid isolated is situated between by heating Matter Wq is supplied to first path P1, the press-in of the heated medium Wq of the liquid supplied from gas-liquid separator 80 to first path P1 Stress structure is：By the difference of heat-transfer pipe 12 and the height for being arranged on the gas-liquid separator 80 more against the top than heat-transfer pipe 12 by It gives or is given by the pump of the heated medium Wq of pressurized delivered liquid, the quantity in path is configured to：By to first path P1 The press-in pressure of the heated medium Wq of supply, the flow of the heated medium Wq flowed into first path P1 can be ensured that regulation Flow.

If forming in this way, can make effectively to evaporate to the heated medium that each heat-transfer pipe supplies.

In addition, the absorber of the 6th mode of the utility model, referring for example to shown in Fig. 2, in above-mentioned the utility model In the absorber 10 of either type in first to the 5th mode, the horizontal sectional area of inversion portion 14r is configured to：Than outlet portion liquid The horizontal sectional area of room 14f is small, the road that the heated medium W that outlet portion liquid chamber 14f is connected in mulitpath is finally flowed into The outlet side of diameter Pf.

If it forms in this way, the biography that the liquid of heated medium can be inhibited not flow into and the yield of steam is caused to reduce Heat pipe occurs.

In addition, the absorber of the 7th mode of the utility model, referring for example to shown in Fig. 3, in above-mentioned the utility model In the absorber 10A of 6th mode, inversion portion 14r is made of multiple, and multiple respective horizontal sectional areas of inversion portion 14r are formed For：It is gradually reduced from the downstream side of the flow direction of heated medium W towards upstream side, with the heated medium in mulitpath The horizontal sectional area of the inlet portion liquid chamber 14e of the entrance side connection for the path P 1 that W is initially flowed into is configured to：Than the reversion of most upstream The horizontal sectional area of portion 14r is small or the horizontal sectional area of inversion portion 14r with most upstream is same degree.

If forming in this way, liquid in the heated medium by each inversion portion and steam can approach with one come The flow velocity of flowing can inhibit to be flowed into the deviation of the flow of the liquid of the heated medium of each heat-transfer pipe.

In addition, the absorber of the eighth mode of the utility model, such as shown in Fig. 2, the of above-mentioned the utility model In the absorber 10 of either type in one to the 6th mode, inversion portion 14r is formed by one.

If forming in this way, as the structure of two paths, heated medium is in the heat-transfer pipe for forming initial path Easily boiling, so as to improve airlift pump effect.

In addition, the absorber of the 9th mode of the utility model, referring for example to shown in Fig. 2, in above-mentioned the utility model In the absorber 10 of either type in first to eighth mode, it is configured to：Heated medium W in mulitpath is formed is most The inside of the heat-transfer pipe 12A of the path P 1 just flowed into, the part boiling of the liquid Wq of heated medium.

If forming in this way, the effect of airlift pump can be improved.

In addition, the absorption heat pump of the tenth mode of the utility model, such as shown in Figure 1, have：Above-mentioned practicality is new The absorber 10 of either type in the first of type to the 9th mode；And regenerator 30, system will be absorbed in absorber 10 The steam Ve of cryogen and absorbing liquid Sw that concentration reduces is imported and is heated, make refrigerant Vg disengagings, absorbing liquid Sw's is dense so as to make Degree rises.

If forming in this way, become the absorption heat pump that the extraction efficiency for the steam for inhibiting heated medium reduces.

According to the utility model, when the ratio of the steam of heated medium increases with the downstream side of flowing is gone to, The flow path cross sectional area in each path is configured to become same degree, therefore with the downstream side for going to flowing, the stream of heated medium Speed increase, the liquid of heated medium is flowed into each heat-transfer pipe with the flowing of the steam of heated medium, so as to keep away Exempt from the appearance for the heat-transfer pipe that liquid does not flow into, can inhibit the volatility of the liquid of heated medium reduces.

Description of the drawings

Fig. 1 is the system diagram of the signal of the absorption heat pump of the embodiment of the utility model.

Fig. 2 is the sectional view around the absorber of the embodiment of the utility model.

Fig. 3 is the sectional view around the absorber of the first variation of the embodiment of the utility model.

Fig. 4 is the sectional view around the absorber of the second variation of the embodiment of the utility model.

Fig. 5 is the system of the signal of the two level temperature-boosting absorption heat pump of the variation of the embodiment of the utility model Figure.

Reference sign：1st, 1A ... absorption heat pumps；10th, 10A, 10B ... absorber；12 ... heat-transfer pipes；14e ... entrances Liquid chamber；14f ... exports liquid chamber；14r ... inverts liquid chamber；30 ... regenerators；80 ... gas-liquid separators；H ... heat source hot water；P1 ... One path；The final paths of Pf ...；S ... absorbing liquids；Sw ... weak solutions；V ... refrigerants；Ve ... evaporator refrigerant steams；Vg… Regenerator refrigerant vapour；W ... heated mediums；Wq ... heated medium liquid；Wv ... heated medium steams.

Specific embodiment

Hereinafter, the embodiment of the utility model is illustrated with reference to attached drawing.In addition in the various figures, to mutually it is identical or The comparable component of person marks same or similar reference numeral, and the repetitive description thereof will be omitted.

First, the absorption heat pump 1 of the embodiment of the utility model is illustrated with reference to Fig. 1.Fig. 1 is absorption heat pump 1 The system diagram of signal.Illustrate the whole structure of absorption heat pump 1 and effect at first, then, be described in detail as absorption type heat The absorber 10 of one of the inscape of pump 1.Absorption heat pump 1 has：Absorber 10, evaporator 20, regenerator 30 and cold Condenser 40, they form progress absorbing liquid S (Sa, Sw) and are set with the main of the absorption heat pump cycle of refrigerant V (Ve, Vg, Vf) It is standby.

In the present specification, about absorbing liquid, in order to easily carry out the difference on heat pump cycle, and according to character, heat pump Position in cycle, referred to as " weak solution Sw ", " concentrated solution Sa " etc., but when paying no attention to character etc., be then referred to as " absorbing liquid S " or Person's " solution S ".Equally, about refrigerant, in order to easily carry out the difference on heat pump cycle, and according on character, heat pump cycle Position, referred to as " evaporator refrigerant steam Ve ", " regenerator refrigerant vapour Vg ", " refrigerant liquid Vf " etc., but paying no attention to It durings character etc., is then referred to as " refrigerant V ".In the present embodiment, using LiBr aqueous solutions as absorbing liquid S (absorbent with The mixture of refrigerant V), use water (H₂O) as refrigerant V.In addition, heated medium W is supplied as to absorber 10 Liquid heated medium W heated medium liquid Wq, as gas heated medium heated medium steam Wv, make Mixing heated medium Wm and conduct for liquid and the heated medium of the state of gas mixing is outside absorption heat pump 1 The general designation of the make-up water Ws of the additive liq of the heated medium of supplement.In the present embodiment, using water (H₂O it) is used as and is added Thermal medium W.

Absorber 10 has in inside：It forms the heat-transfer pipe 12 of the flow path of heated medium W and spreads the dense of concentrated solution Sa Solution spreading nozzle 13.Absorber 10 is spread in concentrated solution Sa from concentrated solution spreading nozzle 13, and concentrated solution Sa absorbs evaporation During device refrigerant vapour Ve, generate and absorb heat.Be configured to the heated medium W flowed in heat-transfer pipe 12 by the absorption heat by Heat, so as to heat heated medium W.

Absorber 10 in addition to the foregoing structure, also with gas-liquid separator 80.Gas-liquid separator 80 is will be in heat-transfer pipe 12 The heated medium W for flowing and being heated is imported, and the equipment that heated medium steam Wv is detached with heated medium liquid Wq. Gas-liquid separator 80 is connect with heat-transfer pipe 12 by heated medium liquid pipe 82 and effuser 84, the heated medium liquid pipe 82 Heated medium liquid Wq in gas-liquid separator 80 is guided to heat-transfer pipe 12, which will be flowed in heat-transfer pipe 12 and quilt The heated medium W of heating is guided to gas-liquid separator 80.In addition, it is connected with heated medium steam pipe in gas-liquid separator 80 89, which guides the heated medium steam Wv isolated outside absorption heat pump 1.In addition, it sets Make-up pipe 85 is equipped with, which imports make-up water Ws outside absorption heat pump 1, and make-up water Ws is main for feeding The heated medium W of the part supplied outside absorption heat pump 1 as steam.Make-up pipe 85 is configured to：With being situated between by heating Matter liquid pipe 82 connects, and make-up water Ws is made to collaborate with the heated medium liquid Wq flowed in heated medium liquid pipe 82.In make-up water Pipe 85 is equipped with make-up pump 86, and the make-up pump 86 is by make-up water Ws towards 82 pressurized delivered of heated medium liquid pipe.

Evaporator 20 has heat source tube 21 and refrigerant liquid spreading nozzle 22 in inside, which is formed as heat source The flow path of the heat source hot water h of fluid, the refrigerant liquid spreading nozzle 22 spread refrigerant liquid Vf towards heat source tube 21.Evaporator 20 It is configured to：Refrigerant liquid Vf is spread from refrigerant liquid spreading nozzle 22, and the refrigerant liquid Vf spread is utilized in heat source tube 21 The heat of the heat source hot water h of interior flowing and evaporate, so as to generate evaporator refrigerant steam Ve.Absorber 10 and evaporator 20 with Interconnected mode is formed in a cylinder body.It is configured to connect with evaporator 20 by absorber 10, so as to will be The evaporator refrigerant steam Ve that evaporator 20 generates is supplied to absorber 10.

Regenerator 30 has：Heat source tube 31 is provided as the heat source hot water h of the heat source fluid of heat dilute solution Sw inside it Flowing；With weak solution spreading nozzle 32, weak solution Sw is spread.The heat source hot water h flowed in the heat source tube 31 can be with The identical fluids of heat source hot water h or different fluids flowed in heat source tube 21.Regenerator 30 is configured to：From dilute molten The weak solution Sw that liquid spreading nozzle 32 is spread is heated by heat source hot water h, and thus refrigerant V evaporates from weak solution Sw and generates concentration The concentrated solution Sa of rising.The refrigerant V evaporated from weak solution Sw is configured to：As regenerator refrigerant vapour Vg to condenser 40 It is mobile.

Condenser 40 has cooling water pipe 41, which is provided as the cooling water c flowings of cooling medium.Condenser 40 are configured to：The regenerator refrigerant vapour Vg of the generation of regenerator 30 is directed through, and is allowed to cool down with cooling water c, condense.Again Raw device 30 is formed in a manner of being interconnected in a cylinder body with condenser 40.It is configured to：Pass through regenerator 30 and condenser 40 connections, can be supplied the regenerator refrigerant vapour Vg generated using regenerator 30 to condenser 40.Alternatively form for：It inhales Device 10 and evaporator 20 is received to be disposed in than 40 higher height of regenerator 30 and condenser, it can will be in absorber 10 using the impetus Absorbing liquid S conveyed to regenerator 30 and convey the refrigerant liquid Vf in evaporator 20 to condenser 40.

The part of the storage concentrated solution Sa of regenerator 30 and the concentrated solution spreading nozzle 13 of absorber 10, by supplying concentrated solution The concentrated solution pipe 35 of Sa flowings connects.The solution pump 35p of pressurized delivered concentrated solution Sa is equipped in concentrated solution pipe 35.Absorber 10 The part of storage weak solution Sw and weak solution spreading nozzle 32, by for weak solution Sw flowing weak solution pipe 36 connect. Concentrated solution pipe 35 and weak solution pipe 36 are equipped with the solution heat exchange that heat exchange is carried out between concentrated solution Sa and weak solution Sw Device 38.The part of the storing refrigerant liquid Vf of condenser 40 and the refrigerant liquid spreading nozzle 22 of evaporator 20, by for freezing The refrigerant liquid pipe 45 of agent liquid Vf flowings connects.The refrigerated medium pump of pressurized delivered refrigerant liquid Vf is equipped in refrigerant liquid pipe 45 46.Evaporator 20 for the part that refrigerant liquid Vf is not stored with not evaporating and condenser 40, connected by refrigerant liquid pipe 25, should Refrigerant liquid pipe 25 makes to spread from refrigerant liquid spreading nozzle 22 and unevaporated refrigerant liquid Vf is back to condenser 40.It is making Cryogen liquid pipe 25 and refrigerant liquid pipe 45 are equipped with refrigerant heat exchanger 48, and the refrigerant heat exchanger 48 is respectively in pipe 25th, the refrigerant liquid Vf of 45 flowings carries out heat exchange between each other.

Illustrate the effect of absorption heat pump 1 with continued reference to Fig. 1.First, illustrate the cycle of refrigerant side.In condenser 40 In, the regenerator refrigerant vapour Vg evaporated in regenerator 30 is received, and be allowed to using the cooling water c flowed in cooling water pipe 41 It cools down and condenses, and as refrigerant liquid Vf.The refrigerant liquid Vf of condensation is by refrigerated medium pump 46 to the refrigerant of evaporator 20 Liquid spreading nozzle 22 conveys.The refrigerant liquid Vf for being sent to refrigerant liquid spreading nozzle 22 is spread towards heat source tube 21, and by The heat source hot water h flowed in heat source tube 21 is heated, is evaporated and becomes evaporator refrigerant steam Ve.In the steaming that evaporator 20 generates Hair device refrigerant vapour Ve is moved to the absorber 10 connected with evaporator 20.It spreads from refrigerant liquid spreading nozzle 22 and does not steam The refrigerant liquid Vf of hair, is back to via refrigerant liquid pipe 25 in condenser 40.

Next, illustrate the cycle of solution side.In absorber 10, concentrated solution Sa is dissipated from concentrated solution spreading nozzle 13 Cloth, the concentrated solution Sa of the distribution absorb the evaporator refrigerant steam Ve come from the movement of evaporator 20.Absorb evaporator refrigeration Concentrated solution Sa concentration after agent steam Ve reduces, and becomes weak solution Sw.In absorber 10, evaporator system is absorbed in concentrated solution Sa It is generated during refrigerant vapor Ve and absorbs heat.By absorption heat, the heated medium W flowed in heat-transfer pipe 12 is heated.In absorber 10 absorb the concentrated solution Sa concentration reduction after evaporator refrigerant steam Ve, become weak solution Sw, and be stored in absorber 10 Lower part.The weak solution Sw of storage is because of gravity and the difference of the internal pressure of absorber 10 and regenerator 30, towards regenerator 30 dilute Solution conduit 36 flows, and carries out heat exchange using solution heat exchanger 38 and concentrated solution Sa, so as to which temperature reduces and reaches regeneration Device 30.

The weak solution Sw for being sent to regenerator 30 is spread from weak solution spreading nozzle 32, and the heat flowed in heat source tube 31 Source hot water h (being about 80 DEG C or so in the present embodiment) is heated, so as to the refrigerant evaporation in the weak solution Sw of distribution As concentrated solution Sa, it is stored in the lower part of regenerator 30.On the other hand, from the refrigerant V of weak solution Sw evaporations as regenerator Refrigerant vapour Vg is moved to condenser 40.The concentrated solution Sa of 30 lower part of regenerator is stored in, it is molten via concentrated solution pipe 35 Liquid pump 35p pressurized delivereds to absorber 10 concentrated solution spreading nozzle 13.In the concentrated solution Sa that concentrated solution pipe 35 flows in solution Heat exchanger 38 and weak solution Sw carries out heat exchange, and inflow absorber 10 after temperature rise, from concentrated solution spreading nozzle 13 It is distributed.The concentrated solution Sa for being back to absorber 10 absorbs evaporator refrigerant steam Ve, and same cycle is repeated later.

During absorbing liquid S and refrigerant V carries out absorption heat pump cycle as described above, in absorber 10 In, the absorption heat that heated medium liquid Wq is generated when concentrated solution Sa absorbs evaporator refrigerant steam Ve heats, a part Boiling becomes damp steam (mixing heated medium Wm) and is directed to gas-liquid separator 80.It is flowed into the mixed of gas-liquid separator 80 It closes heated medium Wm and is separated into heated medium steam Wv and heated medium liquid Wq.It is isolated in gas-liquid separator 80 Heated medium steam Wv is flowed out to heated medium steam pipe 89, and is supplied to the utilization of the steam outside absorption heat pump 1 Place (demand destination).That is, take out heated medium steam Wv from absorption heat pump 1.In this way, absorption heat pump 1 is configured to Second of absorption heat pump of heated medium the W more than temperature of driving heat source can be taken out.On the other hand, in gas-liquid separation The heated medium liquid Wq that device 80 is isolated is flowed in heated medium liquid pipe 82, and is supplied in heat-transfer pipe 12.At this point, Make-up water Ws from make-up pipe 85 flow through come in the case of, make-up water Ws with heated medium liquid pipe 82 flow by heating be situated between Matter liquid Wq collaborates, and is supplied in heat-transfer pipe 12 as heated medium liquid Wq.Typically, as heated medium steam Wv It is supplied to the heated medium W of external amount, being externally supplied from absorption heat pump 1 as make-up water Ws.In addition, it forms Each equipment of above-mentioned absorption heat pump 1 passes through control device control (not shown).

Next, with reference to Fig. 2, the suction of one of the inscape of detailed description as above-mentioned absorption heat pump 1 (with reference to Fig. 1) Receive device 10.Fig. 2 is the sectional view around the absorber 10 of absorption heat pump 1 shown in FIG. 1.Absorber 10 is configured to：Heat-transfer pipe 12 and concentrated solution spreading nozzle 13 be contained in cylinder body 11, and be provided in the outside of cylinder body 11 as heated medium room shape Into the liquid chamber forming member 14Q of component.Liquid chamber forming member 14Q is in the internal liquid chamber 14 formed as heated medium room Component, the liquid chamber 14 supply heated medium W to each heat-transfer pipe 12 or collect heated medium W from each heat-transfer pipe 12.In quilt Heat medium W is in the present embodiment of water, and liquid chamber 14 can also rename as hydroecium.Cylinder body 11 is formed as when typically setting Horizontally long shape.

In the present embodiment, it although heat-transfer pipe 12 is formed as linear, is provided in cylinder body 11 multiple.Each heat transfer The flow path cross sectional area of pipe 12 spreads all over overall length and is made like.In the present embodiment, the diameter of whole heat-transfer pipes 12 is identical.Heat transfer Pipe 12 is engaged with one end of cylinder body 11 of horizontally long shape and its other end of opposite side.The face shape engaged for heat-transfer pipe 12 of cylinder body 11 As tube sheet (heat transfer tube sheet), which is formed with the hole that can be inserted for heat-transfer pipe 12.It is connect with the tube sheet at the both ends of cylinder body 11 The inside of the heat-transfer pipe 12 of conjunction is not connected with the inside of cylinder body 11.In other words, be configured to flow in heat-transfer pipe 12 is heated Medium W, with the inflow and outflow in cylinder body 11 and being present in the fluid (absorbing liquid S and refrigerant V) in the outside of heat-transfer pipe 12 and not mixing It closes.The concrete example for the mode that heat-transfer pipe 12 is engaged to tube sheet is shown, heat-transfer pipe 12 is by expander and is fixed on the tube sheet shape of cylinder body 11 Into hole.

In the present embodiment, each heat-transfer pipe 12, which is configured to axis, becomes level.If consideration makes to be added in heat-transfer pipe 12 Hot medium liquid Wq ebuillition of heated then also contemplates for heat-transfer pipe 12 being configured to its axis as vertical.But in present embodiment In, go out from the viewpoint that the absorbing liquid S of distribution is made to be contacted as much as possible with the outer surface of heat-transfer pipe 12 as relatively thin liquid film Hair, heat-transfer pipe 12 is configured to axis becomes level.The heat-transfer pipe 12 being configured in a manner that axis becomes horizontal, in theory water Square it is 100% to ingredient, vertical direction ingredient is 0%, without vertical direction ingredient.In addition, it is set in cylinder body 11 Multiple heat-transfer pipes 12 are configured to be mutually parallel.In addition, each heat-transfer pipe 12 can also be configured to：It is soaked in absorbing liquid S along outer surface It expands in the range of can obtaining the desirable degree for absorbing heat, axis is tilted with rising slope.Rising slope is used In making the gas that heated medium liquid Wq boilings generate in heat-transfer pipe 12, downstream side is flowed.

The heat-transfer pipe 12 of vertical direction lowest part is configured in the heat-transfer pipe 12 being set in cylinder body 11, being configured at ensures The position of the part (space) of storage weak solution Sw thereunder.With this configuration, when running well, heat-transfer pipe 12 will not Absorbing liquid S is submerged, evaporator refrigerant steam Ve is absorbed, therefore energy by the concentrated solution Sa of the moistened surface extension in heat-transfer pipe 12 Enough expand the contact area of concentrated solution Sa and evaporator refrigerant steam Ve, and the absorption heat generated is transferred to is conducting heat rapidly The heated medium W that pipe 12 flows, can accelerate the recovery of absorbability.On the other hand, it is configured at the topmost of cylinder body 11 Heat-transfer pipe 12 is configured in the position for guaranteeing the space for setting concentrated solution spreading nozzle 13.

Liquid chamber forming member 14Q is installed on the two sides (tube sheet) of cylinder body 11 engaged for the end of each heat-transfer pipe 12.Liquid chamber Forming member 14Q is the component of the rectangular-shape of one side opening, and the face covering being open with it is installed on the more of the tube sheet of cylinder body 11 The mode of one end of a heat-transfer pipe 12 is installed on the tube sheet of cylinder body 11.Liquid chamber forming member 14Q can also be other than the face of opening Face (such as face opposed with the face of opening) assemble and unassemble lid is set.By the way that liquid chamber forming member 14Q is installed on cylinder body 11 tube sheet, the space that thus tube sheet of liquid chamber forming member 14Q and cylinder body 11 is surrounded become liquid chamber 14.In present embodiment In, since liquid chamber forming member 14Q is formed as rectangular-shape, the shape and size of the horizontal profile of liquid chamber 14 are along vertical Direction is constant and becomes constant.Liquid chamber 14 is connected with the inside of each heat-transfer pipe 12.That is, heated medium W is flowed relative to liquid chamber 14 Enter outflow.In the case of forming multiple liquid chambers 14 in the inside of division liquid chamber forming member 14Q, in liquid chamber forming member 14Q Inside setting demarcation strip 15.The heat-transfer pipe 12 of heated medium W flowings for flowing into the liquid chamber 14 is communicated in each liquid chamber 14 One end and/or one end of heat-transfer pipe 12 for flowing of the heated medium W for flow out from the liquid chamber 14.

Demarcation strip 15 is set as：Make one or two or more of some liquid chamber 14 of heated medium W inflow and outflows Heat-transfer pipe 12 connects in the liquid chamber 14 of opposite side from different liquid chambers 14.Thus it is flowed in each heat-transfer pipe 12 and liquid chamber 14 Heated medium W be configured to：From the liquid chamber 14 positioned at most upstream, in the heat-transfer pipe 12 connected with the liquid chamber 14 and to a side To flowing, in the liquid chamber 14 of opposite side, change the direction of flowing, in other heat-transfer pipes that the liquid chamber 14 with the opposite side connects 12 and to being flowed in the opposite direction with a side, and be configured to：It is whole become the stream of fluid that changes direction and advance and Pass through in cylinder body 11.In addition, setting demarcation strip 15 is in order to divide liquid chamber 14, so as to which each heat-transfer pipe 12 and liquid chamber 14 are made For the whole heated medium W for becoming stream of fluid and flowing, become by cylinder body 11 as a whole and from below upward Flowing.

In the present embodiment, in the two of two sides of cylinder body 11 liquid chamber forming member 14Q are respectively arranged in, a liquid Liquid chamber 14 in the forming member 14Q of room is separated by a piece of demarcation strip 15, is thus divided into entrance liquid chamber 14e and outlet liquid chamber 14f.In addition, the liquid chamber 14 in another liquid chamber forming member 14Q, is not provided with demarcation strip 15, and whole become inverts liquid chamber 14r.It is following liquid chamber 14 to invert liquid chamber 14r, that is, receives and is flowed before reversion liquid chamber 14r is flowed into for heated medium W Heat-transfer pipe 12 (being referred to as " heat-transfer pipe 12A " to distinguish) internal flow heated medium W, and the quilt that will be received Heat medium W (is referred to as " heat transfer to the heat-transfer pipe 12 connected with reversion liquid chamber 14r in addition to heat-transfer pipe 12A in order to distinguish Pipe 12B ") guiding, it inverts liquid chamber 14r and is equivalent to inversion portion.In the absorber 10 of present embodiment, reversion liquid chamber 14r is formed There are one, more heat-transfer pipes 12 being set in cylinder body 11 are configured to two paths by a reversion liquid chamber 14r.Here, " path " refers to that the fluid flowed in some heat-transfer pipe 12 does not collaborate with the fluid in other heat-transfer pipes 12, and will flowing The unit of flow path that direction changes 180 degree and flows.As long as flow direction is not changed 180 by the fluid flowed in heat-transfer pipe 12 It spends and does not collaborate halfway, then path is unrelated with the quantity of heat-transfer pipe 12.

Entrance liquid chamber 14e is to receive the heated medium liquid Wq flowed in heated medium liquid pipe 82, and will be received The liquid chamber 14 that heated medium liquid Wq is guided to heat-transfer pipe 12A.One end of entrance liquid chamber 14e connection heat-transfer pipes 12A, but be not connected to Other heat-transfer pipes 12.The path that the heat-transfer pipe 12A being connect with entrance liquid chamber 14e is formed is the road that heated medium W is initially flowed into Diameter is referred to as first path P1.It is to receive in the heat-transfer pipe 12B heated medium W flowed and will receive to export liquid chamber 14f The liquid chambers 14 that are guided to effuser 84 of heated medium W.Effuser 84 is connected to the top of outlet liquid chamber 14f (typically Top).Outlet liquid chamber 14f is connected with one end of heat-transfer pipe 12B, but be not connected to other heat-transfer pipes 12.Connect with outlet liquid chamber 14f The path that the heat-transfer pipe 12B connect is formed is the path that heated medium W is finally flowed into, and is referred to as final path P f.Due to this The absorber 10 of embodiment is two paths, therefore is made of first path P1 and final path P f this two paths.

The first path P1 of absorber 10 and the final respective flow path cross sectional areas of path P f are equably formed.In addition, road The flow path cross sectional area of diameter refers to form the summation of the flow path cross sectional area of whole heat-transfer pipes 12 in the path.In addition, mulitpath Flow path cross sectional area equalization refers in path of the sectional area relative to flow path cross sectional area minimum in the path of flow path cross sectional area maximum The ratio between sectional area (maximum secting area/minimum sectional area) be preferably 1 situation, but because in design or making restriction, Error etc., strictly speaking, in view of the presence of situation of the same area can not be become, even and if as the ratio between sectional area (maximum cross-section Product/minimum sectional area) deviate 1 concept for being also contained in equalization, such as including this than the situation for less than 1.1.As can not be tight Each path is made to lattice to be enumerated in the section rectangular with the axis of heat-transfer pipe 12 in cylinder body 11 for example of the same area The shape (shape for being configured with the outer rim of multiple heat-transfer pipes 12) in the region of configuration heat-transfer pipe 12 is falls when entirety is observed Trapezoidal situation (the situation that the path on top in this case, can not be made equal with the quantity of the heat-transfer pipe 12 in the path of lower part It is more).In the present embodiment, due to the first path P1 being connect with a reversion liquid chamber 14r and final path P f respectively Flow path cross sectional area equably form, therefore the flow velocity of the heated medium W of the outlet of first path P1 and final path P f The flow velocity of the heated medium W of entrance is equal.

In the present embodiment, the horizontal sectional area of reversion liquid chamber 14r is formed as the horizontal sectional area than exporting liquid chamber 14f It is small.From the viewpoint of the increased viewpoint of flow resistance for inhibiting heated medium W and ensuring the flow velocity of heated medium W, Invert liquid chamber 14r horizontal sectional area should according to mixing heated medium Wm reversion liquid chamber 14r volume flow relative to The ratio between volume flow in liquid chamber 14f (volume flow of volume flow/outlet liquid chamber 14f of reversion liquid chamber 14r) is exported to set It is fixed, but typically, the horizontal sectional area of reversion liquid chamber 14r is relative to the horizontal sectional area preferably substantially 0.8 for exporting liquid chamber 14f Below times.The purging row of heated medium liquid Wq can be discharged by being provided in the lower part of reversion liquid chamber 14r (typically bottom) Outlet pipe 17.Purging dump valve 17v is equipped in purging discharge pipe 17.

The concentrated solution spreading nozzle 13 being contained in cylinder body 11, in the wider of covering heat-transfer pipe 12 when from above vertical Range extension ground configuration, so that concentrated solution Sa can be spread to each heat-transfer pipe 12 without missing.With concentrated solution spreading nozzle 13 The concentrated solution pipe 35 of connection penetrates through the one side of cylinder body 11.In addition, as described above, although the water in cylinder body 11 of multiple heat-transfer pipes 12 Level land is configured, but flatly configuration does not mean that strictly requirement as level, as long as to be as stream of fluid in cylinder body 11 The heated medium W for making change direction and flowing is steam from liquid variation in heat-transfer pipe 12, will not hinder to be heated The degree level of medium W flowings.However, from the concentrated solution Sa spread from concentrated solution spreading nozzle 13 and heat-transfer pipe 12 is increased Outer surface contact amount from the perspective of, closer to horizontal the more preferred.To be stored in the weak solution Sw of the bottom of cylinder body 11 to The weak solution pipe 36 of regenerator 30 (with reference to Fig. 1) guiding is connected to the bottom of cylinder body 11.

Heated medium liquid Wq in gas-liquid separator 80 is connected to the heated medium liquid pipe 82 that cylinder body 11 guides Entrance liquid chamber 14e, entrance liquid chamber 14e become the liquid chamber of the most upstream of the flowing of the heated medium W in cylinder body 11.Make-up water Pipe 85 is connected to heated medium liquid pipe 82.According to the structure, make heated medium W flow into the connecting portion of the pipe of cylinder body 11 in One position can make features simple structure, and maintenance test operation during open liquid chamber 14 becomes easy.It will be in cylinder body 11 The damp steam (mixing heated medium Wm) of interior generation connects to the effuser 84 that gas-liquid separator 80 guides and outlet liquid chamber 14f It connects.It is configured in this way：Pass through the liquid chamber 14 of end face and the heated medium liquid pipe of gas-liquid separator 80 that will be set to cylinder body 11 82 and effuser 84 connect, so as to make heated medium W in the heat-transfer pipe 12 being configured in cylinder body 11 and gas-liquid separation It is recycled between device 80.In the present embodiment, due to being configured to two paths, heated medium liquid pipe 82 and effuser 84 connect in the liquid chamber of the same side 14 with cylinder body 11, by setting gas-liquid separator 80 near the liquid chamber 14, thus, it is possible to It is enough to link gas-liquid separator 80 and cylinder body 11 with short distance, the flow losses of heated medium W can be reduced, so as to reduce system Cause this.In addition in the present embodiment, due to being not provided with the heated medium liquid Wq in gas-liquid separator 80 being pressed into entrance The pump of liquid chamber 14e, therefore gas-liquid separator 80 is arranged on that can obtain can be by the heated medium liquid in gas-liquid separator 80 Wq is pressed into the discharge head of entrance liquid chamber 14e.

Heated medium liquid Wq in gas-liquid separator 80 is pressed into the press-in pressure needed for entrance liquid chamber 14e, because of road Diameter quantity and it is different.The heat-transfer pipe 12 for the determining radical being configured in cylinder body 11 is being divided into mulitpath, Qie Shige roads In the case of the flow path cross sectional area equalization of diameter, if reducing number of paths, the radical of the heat-transfer pipe 12 of every paths in each path Increase, reduced so as to the flow resistance of the heated medium W in heat-transfer pipe 12, in addition, the quantity of reversion liquid chamber 14r is reduced, from And flow resistance is reduced, even smaller press-in pressure can also ensure that the heated medium W institutes for being flowed into first path P1 The flow needed.If on the contrary, increasing number of paths, the radical of the heat-transfer pipe 12 of every paths in each path is reduced, so as to pass The flow resistance of heated medium W in heat pipe 12 increases, in addition, the quantity of reversion liquid chamber 14r increases, so as to which flow resistance increases Add, the flow for being flowed into the heated medium W of first path P1 is reduced.Even if in this case, as long as with for by gas-liquid Heated medium liquid Wq in separator 80 is pressed into the sufficient press-in pressure of entrance liquid chamber 14e, it can be ensured that is pressed with press-in The corresponding heated medium liquid Wq's of power wants flow.Adequately press-in pressure can pass through airlift pump effect or setting Press-in pumps (not shown) to obtain, and the airlift pump effect is based on the top that gas-liquid separator 80 is set to 12 groups of heat-transfer pipe (bottom of gas-liquid separator 80 is set to more against the top than the heat-transfer pipe 12 of topmost) and with the difference of height between 12 groups of heat-transfer pipe And generate, but in the present embodiment, the simplification of structure is realized using airlift pump effect.Alternatively, it is also possible to use gas-liquid point From the difference of height between 12 groups of device 80 and heat-transfer pipe and it is pressed into either one of pump or is used in combination both sides.In order to make by airlift pump With and obtain the flow needed for heated medium W, gas-liquid separator 80 is at least configured to the top of 12 groups of heat-transfer pipe.If expand The difference of height of 12 groups of gas-liquid separator 80 and heat-transfer pipe, then can amplify airlift pump effect, can increase circular flow.In addition, In the present embodiment, by being formed as two paths, so as to as the heated medium in the heat-transfer pipe 12A of first path P1 The structure of the part boiling of liquid Wq.

Next, referring especially to Fig. 2, suitably with reference to Fig. 1, illustrate the effect around absorber 10.It is spread from concentrated solution Nozzle 13 spread concentrated solution Sa, from regenerator 30 by solution pump 35p be pressurized conveying come.If concentrated solution Sa is dissipated from concentrated solution Cloth nozzle 13 is distributed, then is fallen due to gravity, and falls on heat-transfer pipe 12.Concentrated solution Sa falls in cylinder body 11 and is configured at first The heat-transfer pipe 12 of top, with the heat-transfer pipe 12 that is disposed above not in contact with part and transmit and drip on the surface of heat-transfer pipe 12 The part got off is moved in a manner of falling on the heat-transfer pipe 12 being configured at below, and along the moistened surface of each heat-transfer pipe 12 Extension.The concentrated solution Sa extended along the moistened surface of each heat-transfer pipe 12 absorbs the evaporator refrigerant supplied from evaporator 20 and steams Gas Ve, and the heated medium W in internal flow is heated using the absorption heat generated at this time.Absorb evaporator refrigeration Concentrated solution Sa after agent steam Ve is as weak solution Sw and after being temporarily stored in the lower part of cylinder body 11, via weak solution pipe 36 It is directed to regenerator 30.

On the other hand, the heated medium liquid Wq from gas-liquid separator 80 is flowed into via heated medium liquid pipe 82 Entrance liquid chamber 14e.At this point, locating on the lower in the reservoir 81 than gas-liquid separator 80 since entrance liquid chamber 14e is configured, lead to The reservoir 81 crossed in gas-liquid separator 80 sets liquid level when running well, and thus entrance liquid chamber 14e is by heated medium liquid Wq is full of.In addition, in the heated medium liquid Wq for being flowed into entrance liquid chamber 14e, before entrance liquid chamber 14e is flowed into, fit Locality is by the operating of make-up pump 86 and mixed supply water Ws.In addition, from heated medium liquid Wq is made in each heat-transfer pipe 12 From the perspective of effectively evaporating, being situated between by heating for entrance liquid chamber 14e is flowed into from make-up pipe 85 and gas-liquid separator 80 Total mass flow of matter liquid Wq is preferably：2 times of the mass flow of the heated medium steam Wv generated in the cylinder body 11 with On, from the viewpoint of gas-liquid separator 80 is inhibited to maximize, preferably less than 10 times.If the flow of heated medium liquid Wq compared with It is more, then there is a situation where the gas-liquid separation ability for needing to increase gas-liquid separator 80 (with the enlargement of gas-liquid separator 80). On the other hand, if the flow of heated medium liquid Wq is less, exist and heated medium liquid Wq is generated due to the situation of flowing not The situation of the heat-transfer pipe 12 of inflow.In addition, the mass flow for being flowed into the heated medium liquid Wq of entrance liquid chamber 14e is in cylinder body The 2 times or more of the mass flow of the heated medium steam Wv generated in 11 refers to：It is flowed into being situated between by heating for entrance liquid chamber 14e More than half of the flow of matter liquid Wq is from the mass flow of outlet liquid chamber 14f outflows in the state of liquid.In this way, for inciting somebody to action The sufficient press-in pressure that above-mentioned heated medium liquid Wq is pressed into entrance liquid chamber 14e is typically meant that：It can be with being heated Dielectric fluid Wq is full of entrance liquid chamber 14e, and is pressed into 2~10 times of heated medium of the mass flow of heated medium steam Wv The pressure of the mass flow (becoming appropriate flow rate) of liquid Wq.

The heated medium liquid Wq of entrance liquid chamber 14e is flowed into, is flowed into each heat-transfer pipe 12A for forming first path P1. At this point, since entrance liquid chamber 14e is full of by heated medium liquid Wq, gas may not flow into, and heated medium liquid Wq flows Enter whole heat-transfer pipe 12A.Each heat-transfer pipe 12A (first path P1) flowing heated medium liquid Wq, by heat-transfer pipe 12A's The concentrated solution Sa of outer surface wetting extension absorbs the absorption heat heating generated during evaporator refrigerant steam Ve, until reaching reversion Until liquid chamber 14r, part boiling.Therefore it is flowed into reversion liquid chamber 14r and becomes mixing heated medium Wm (heated mediums The fluid-mixing of liquid Wq and the heated medium steam Wv of part of it evaporation generation).The heated medium in first path P1 The part boiling of liquid Wq is to suitably set press-in pressure of the heated medium liquid Wq to entrance liquid chamber 14e, cylinder body 11 Interior number of paths and operating condition.Due to mixing heated medium Wm flowings in reversion liquid chamber 14r, it is maintained close to In the temperature of saturation temperature.The mixing heated medium Wm of reversion liquid chamber 14r is flowed and be flowed into each heat-transfer pipe 12A, is changed The direction of flowing and rising, and it is flowed into each heat-transfer pipe 12B for forming final path P f.In this way, heated medium W is by each road Diameter as a whole and by from below upward in a manner of flow.At this point, it is smaller in flow velocity, according to the situation of flowing There are gases and liquid to be integrally formed and immobilising situation, and result, which exists, generates the feelings of heat-transfer pipe 12B that liquid does not flow into Condition.In addition, liquid does not flow into the inflow for strictly speaking referring not only to no liquid, also a small amount of liquid including following degree flows into Situation, flows on a small quantity even if the degree is liquid, the degree that the yield of steam is also brought to reduce.In addition, in the stream of liquid Enter amount than in same paths in the yield of the steam of each heat-transfer pipe 12, in the heat-transfer pipe for bringing maximum steam yield In the few heat-transfer pipe 12 of amount of 12 steams generated, the yield of steam is significantly reduced than maximum steam yield (brings drop Lower than the degree of allowed band).Therefore, from the viewpoint of avoid volatility reduce, if more preferably avoid than The heat-transfer pipe 12 that a small amount of liquid of the maximum steam yield of heat-transfer pipe 12 in same paths flows into occurs, then avoids evaporating The appearance of the heat-transfer pipe 12 of reduced performance.That is, the influx of a small amount of liquid of degree that the yield of steam is brought to reduce Refer to：Including until the influx of the few liquid of the maximum steam yield than the heat-transfer pipe 12 in same paths. Assuming that in the case where there is the heat-transfer pipe 12B that liquid does not flow into, lead to absorb heat in heat-transfer pipe 12B to heated medium The degradation in efficiency that liquid Wq is transmitted.But in the absorber 10 of present embodiment, according to following reason, it can avoid the occurrence of and be added The heat-transfer pipe 12B that hot medium liquid Wq is not flowed into.

In the absorber 10 of present embodiment, as described above, it is configured to：Invert the horizontal sectional area ratio of liquid chamber 14r The horizontal sectional area for exporting liquid chamber 14f is small, and the flow path cross sectional area of first path P1 and final path P f are equably formed. Thereby, it is possible to inhibit the flow resistance of heated medium W, and mixing heated medium Wm can be made equably to be flowed into composition Each heat-transfer pipe 12B of final path P f.In addition, it is flowed into the heated medium W of reversion liquid chamber 14r and is flowed into entrance liquid chamber The heated medium W of 14e is compared, and volume increases the amount for being equivalent to the part evaporation of liquid as gas, and the stream of liquid Amount is reduced.In addition, the heated medium W in outlet liquid chamber 14f is compared with inverting the heated medium W in liquid chamber 14r, volume into One step, which increases, is equivalent to amount of the further evaporation of liquid as gas, and the flow of liquid is further reduced.Therefore, liquid is inverted The zooming flow velocitys of heated medium W in the 14r of room, can be by making the horizontal sectional area ratio of reversion liquid chamber 14r go out oral fluid The small volume ratio for being equivalent to heated medium W of the horizontal sectional area of room 14f exports the small amounts of liquid chamber 14f to realize.If make reversion The upflow velocity of heated medium W in liquid chamber 14r accelerates, then the liquid in reversion liquid chamber 14r in mixing heated medium Wm Body is integrally formed with steam, and so as to flow close to uniformly, composition is flowed into most from reversion liquid chamber 14r in mixing heated medium Wm During each heat-transfer pipe 12B of whole path P f, each biography that the liquid in heated medium Wm is equably flowed into final path P f is mixed Heat pipe 12B.Assuming that the flow velocity of mixing heated medium Wm reduces, then there are situations below：Because of the situation of flowing, mix and heated Liquid in medium Wm is not integrally formed with steam, is not flowed into or is flowed into so as to occur mixing the liquid in heated medium Wm The less heat-transfer pipe 12B of flow.But if become the heated medium W in heat-transfer pipe 12：If more lean on the flow phase of liquid The downstream side flow velocity of the flowing of reduction is more increased, then according to first path P1 heat-transfer pipe 12A inflow inflow velocity, from First path P1 heat-transfer pipe 12A outflow the rate of outflow and to final path P f heat-transfer pipe 12B flow into inflow velocity, The sequence of the rate of outflow flowed out from the heat-transfer pipe 12B of final path P f, the flow velocity of heated medium W is accelerated, so as to Avoid the heat-transfer pipe 12B that heated medium liquid Wq do not flow into occur or the flow of heated medium liquid Wq that flows into it is less and The heat-transfer pipe 12B that volatility reduces occurs, and can inhibit to absorb the efficiency reduction that heat is transmitted to heated medium W.Meanwhile energy Enough prevent the inner surface for adhering to, remaining on heat-transfer pipe 12 with evaporated residue of evaporation generation of heated medium liquid Wq etc.. In addition, it is smaller than the horizontal sectional area for exporting liquid chamber 14f by the horizontal sectional area for being configured to invert liquid chamber 14r, it can compress anti- Turn the internal volume of liquid chamber 14r, the ownership of the heated medium W in absorber 10 can be reduced, absorption heat pump 1 can be reduced The heating amount of heated medium W during starting, so as to improve the thermal efficiency.Equally, if making horizontal sectional area and the company of entrance liquid chamber 14e The horizontal sectional area for being connected to the reversion liquid chamber 14r of the outlet of first path P1 is same degree or ratio with being connected to the first via The horizontal sectional area of the reversion liquid chamber 14r of the outlet of diameter P1 is small, then can be further reduced the ownership of heated medium W, from And the thermal efficiency can be improved.

The heated medium W for each heat-transfer pipe 12B for forming final path P f is flowed into from reversion liquid chamber 14r, in each heat transfer When pipe 12B flows, using when the concentrated solution Sa of the outer surface of heat-transfer pipe 12B wetting extension absorbs evaporator refrigerant steam Ve The absorption of generation is hot and is heated.The heated medium W for flowing and being heated in each heat-transfer pipe 12B, until being flowed into oral fluid Substantially 10%~the 50% of the heated medium liquid Wq of room 14e boils until reaching outlet liquid chamber 14f.It is flowed in each heat-transfer pipe 12 When the heated medium W that is heated, become the mixing heated medium Wm of gas-liquid mixture phase and reach outlet liquid chamber 14f.Go out The ratio shared by heated medium steam Wv in the mixing heated medium Wm of oral fluid room 14f, than the mixing for inverting liquid chamber 14r The ratio shared by heated medium steam Wv in heated medium Wm is big.Due to mixing heated medium in outlet liquid chamber 14f Wm flows, therefore is maintained the temperature close to saturation temperature.Mixing heated medium Wm in outlet liquid chamber 14f is flowing out Pipe 84 flows out.The mixing heated medium Wm that liquid chamber 14f flows out from outlet is flowed by airlift pump effect via effuser 84 To gas-liquid separator 80.Be flowed into mixing heated medium Wm and baffle the 80a collision of gas-liquid separator 80 and by gas-liquid separation, And it is divided into heated medium liquid Wq and heated medium steam Wv.The heated medium steam Wv isolated is towards absorption type heat Steam outside pump 1 is flowed using place in heated medium steam pipe 89.On the other hand, the quilt isolated in gas-liquid separator 80 Heat medium liquid Wq is stored in the reservoir 81 of 80 lower part of gas-liquid separator.The heated medium liquid Wq for being stored in reservoir 81 exists Heated medium liquid pipe 82 flows.Heated medium liquid pipe 82 flow heated medium liquid Wq, as needed and with from The make-up water Ws interflow of make-up pipe 85, and entrance liquid chamber 14e is flowed into, above-mentioned effect is repeated below.

As described above, absorber 10 according to the present embodiment, multiple heat-transfer pipes 12 are divided into Liang Tiaolu The flow path cross sectional area of diameter, first path P1 and final path P f are equably formed, and invert the horizontal sectional area of liquid chamber 14r It is configured to smaller than the horizontal sectional area for exporting liquid chamber 14f, therefore is situated between in being heated for part boiling of first path P1 liquid The flow velocity of matter W more by the downstream side flowed more increases, the flowing of the heated medium W in reversion liquid chamber 14r close to uniform, from And the heat-transfer pipe 12 that heated medium liquid Wq can be avoided not flow into occurs or the flow of heated medium liquid Wq that flows into compared with Less and volatility reduce heat-transfer pipe 12 occur.In addition, be formed as one and by two paths since liquid chamber 14r will be inverted It forms, therefore heated medium liquid Wq also easily boilings in the heat-transfer pipe 12A for forming first path P1, airlift pump can be improved Effect.

In the above description, although reversion liquid chamber 14r is formed as one and by multiple heat-transfer pipes 12 by two paths It forms, but can also be made of three or more mulitpaths.In the case where being formed by three with upper pathway, liquid chamber 14r is inverted (inversion portion) is formed with the quantity that 1 is subtracted from the quantity in path.In this case, although reversion liquid chamber 14r be formed with it is multiple, It is more smaller by the liquid chamber 14 of flow direction upstream side of heated medium W, horizontal sectional area.It is shown in FIG. 3 and more leans on The example of the smaller structure of the liquid chamber 14 of flow direction upstream side, horizontal sectional area.Absorber 10A shown in Fig. 3 is configured to four Paths, there are three the 14r settings of reversion liquid chamber.Absorber 10A is provided in the face opposed with tube sheet of liquid chamber forming member 14Q Assemble and unassemble lid 14Qc.Landfill component 14S, the landfill component 14S are installed on the inside of lid 14Qc with convex to entering oral fluid The inside of room 14e and each reversion liquid chamber 14r protrude, so as to reduce the internal volume of liquid chamber 14.Component 14S is filled according to liquid chamber 14 Adjust the size prominent into liquid chamber 14.As a result, with for identical liquid chamber forming member 14Q, more by flow direction The smaller mode of the liquid chamber 14 of upstream side, horizontal sectional area, is configured in this variation：The horizontal sectional area direction of liquid chamber 14 Flow direction upstream side is gradually reduced.In the absorber 10A formed in this way, it can make what is risen in each reversion liquid chamber 14r The flow velocity of heated medium W becomes the speed that the liquid in mixing heated medium Wm is integrally formed and flows with steam, even if It is multiple to invert liquid chamber 14r, can also inhibit the flow resistance of heated medium W, and can make mixing heated medium Wm Liquid be equably flowed into each heat-transfer pipe 12 being connect with each reversion liquid chamber 14r.In addition, each reversion liquid chamber 14r can be compressed Internal volume, the ownership of the heated medium W in absorber 10A can be reduced, quilt when absorption heat pump 1 starts can be reduced The heating amount of heat medium W, so as to improve the thermal efficiency.

In addition, the heat-transfer pipe 12 for the determining radical being configured in cylinder body 11 is divided into mulitpath, Bing Shige roads In the case of the flow path cross sectional area equalization of diameter, if increasing number of paths, the radical of heat-transfer pipe 12 of each path per paths subtracts It is few, although can increase more by the downstream side flowed more the ascensional range of the flow velocity of heated medium W accelerated, from inhibition From the perspective of flow resistance increase, below preferably 10 paths, or 4 paths or 3 roads as odd number Diameter, 5 paths.On the other hand, if reducing number of paths, the radical of heat-transfer pipe 12 of each path per paths increases, and conducts heat The flow resistance of heated medium W in pipe 12 is reduced, therefore is had and can be increased heated medium W's by airlift pump effect The advantages of flow.No matter in the case of more than number of paths or in the case where number of paths is few, in final path P f, quilt A part of heat medium liquid Wq boils and is used as mixing heated medium Wm in outlet liquid chamber 14f outflows.In addition, more by mixing The path in the downstream of the amount reduction of the liquid in heated medium Wm, the mixing heated medium Wm of flowing in heat-transfer pipe 12 Flow velocity more increases, and inhibits the flow-reduction of heated medium liquid Wq flowed into heat-transfer pipe 12, so as to inhibit heat-transfer pipe 12 Volatility reduce.In addition, according to operating condition, number of paths, it is different from the situation of the absorber 10 of present embodiment, also The part that there is a situation where the heated medium liquid Wq in first path P1 is not boiled, if but the heated medium that does not boil The reversion liquid chamber 14r that liquid Wq is flowed into is similary with the situation of entrance liquid chamber 14e, is full of by heated medium liquid Wq and ensures to be heated The appropriate flow rate of dielectric fluid Wq, then a part of heated medium liquid Wq can also not necessarily be boiled in first path P1. In addition, the heated medium liquid even in than first path P1 downstreams and than the paths of final path P f on the upstream side In the case that a part of Wq is not boiled, if the reversion liquid chamber 14r that the heated medium liquid Wq not boiled is flowed into is situated between by heating Matter liquid Wq is full of, and ensures the appropriate flow rate of heated medium liquid Wq, then than first path P1 downstreams and than final In the paths of path P f on the upstream side, a part of heated medium liquid Wq can not also boil.Here, heated medium liquid Wq A part do not boil and refer to：Other than the situation that heated medium liquid Wq does not boil completely, further include what is even boiled In the case of the bubble that boils also granular be actually mixed into the flowing of liquid (actually can as low as be considered as liquid with smaller Degree it is granular) flowing situation.

In the above description, mulitpath is respectively formed as flow path cross sectional area equalization, but can be same degree.Each road The flow path cross sectional area of diameter refers to for same degree：Other than the impartial situation of homalographic, the flow path also including each path is cut Area ratio is the situation in defined range.The ratio between the flow path cross sectional area in each path is refers in defined range：It can give The heated medium that the heat-transfer pipe 12 that giving heated medium W can avoid heated medium liquid Wq from not flowing into occurs or flows into The flow of liquid Wq is less and in the range of the flow path cross sectional area ratio of the flow velocity of degree that heat-transfer pipe 12 that volatility reduces occurs. As the example of defined range, according to condition, the sectional area in path of flow path cross sectional area maximum can be enumerated relative to flow path The ratio between sectional area in path of sectional area minimum (maximum secting area/minimum sectional area) is less than 1.5 example.This than range Flow path cross sectional area each path, what is arranged between downstream is from upstream to does not restrict sequentially, and arranges the suitable of path Sequence and flow path cross sectional area onrelevant.If forming in this way, the heat-transfer pipe 12 that heated medium liquid Wq is not flowed into can be avoided to occur, Or the heated medium liquid Wq flowed into flow is less and heat-transfer pipe 12 that volatility reduces occurs, so as to improve heat-transfer pipe 12 heat transfer efficiency can inhibit the flow resistance in each path to rise, so as to substantially ensure in heat-transfer pipe 12 and gas-liquid separator The flow of heated medium liquid Wq recycled between 80.

In the above description, the horizontal sectional area of reversion liquid chamber 14r is smaller than the horizontal sectional area for exporting liquid chamber 14f, but If the quilt that the heat-transfer pipe 12 that can give heated medium W can avoid heated medium liquid Wq from not flowing into occurs or flows into The flow of heat medium liquid Wq is less and the flow velocity of degree that heat-transfer pipe 12 that volatility reduces occurs, then inverts liquid chamber 14r Horizontal sectional area can not also than export liquid chamber 14f horizontal sectional area it is small.

In the above description, inversion portion is made of reversion liquid chamber 14r, and reversion liquid chamber 14r will be from multiple heat-transfer pipes 12 The heated medium W received is supplied to multiple heat-transfer pipes 12, but as shown in Figure 4 or will be connect from a heat-transfer pipe 12 The structure for being formed as U-shaped tubulose that the heated medium W received is supplied to a heat-transfer pipe 12.Variation shown in Fig. 4 In absorber 10B, a heat-transfer pipe 12Bs of the heat-transfer pipe 12A of first path P1 with forming final path P f is formed, by one A inversion tube 14p connections.Inversion tube 14p is set with the amount of the radical of the heat-transfer pipe 12 in each path.Absorber shown in Fig. 4 In 10B, in the heated medium W for the heat-transfer pipe 12A flowings for forming first path P1 and in the heat-transfer pipe for forming final path P f Flow direction changes 180 degree in the heated medium W of 12B flowings, therefore first path P1 becomes different from final path P f Path.In absorber 10B shown in Fig. 4, due to using heated medium liquid Wq full of entrance liquid chamber 14e, so as to can The flow of heated medium liquid Wq for occurring or flowing by the heat-transfer pipe 12 that ground avoids heated medium liquid Wq from not flowing into is less And the heat-transfer pipe 12 that volatility reduces occurs.

In the above description, make-up pipe 85 is connect with heated medium liquid pipe 82, but can also be configured to：Make-up water Pipe 85 is connect with gas-liquid separator 80, and make-up water Ws collaborates with the heated medium liquid Wq in gas-liquid separator 80.

In the above description, although being illustrated with absorption heat pump 1 for single-stage, absorption heat pump 1 can also For multistage.The structure of the absorption heat pump 1A of two level heating type is exemplified in Figure 5.For absorption heat pump 1A, Fig. 1 institutes Absorber 10 and evaporator 20 in the absorption heat pump 1 shown are divided into：The high temperature absorber 10H and high temperature of high temperature side steam Send out the device 20H and low temperature absorption device 10L of low temperature side and cryogenic vaporizer 20L.The inner pressure ratio low temperature of high temperature absorber 10H is inhaled The internal pressure for receiving device 10L is high, and the internal pressure of high-temperature evaporator 20H is high with the internal pressure of cryogenic vaporizer 20L.High temperature absorber 10H and height The steam of refrigerant Vs of the warm evaporator 20H high-temperature evaporator 20H can be made to high temperature absorber 10H move in a manner of upper Portion connects.Low temperature absorption device 10L and cryogenic vaporizer 20L are can make the steam of the refrigerant V of cryogenic vaporizer 20L to low temperature The mode of absorber 10L movements connects on top.Heated medium liquid Wq is heated by high temperature absorber 10H.Heat source hot water h is led Enter to cryogenic vaporizer 20L.Low temperature absorption device 10L is configured to：Using absorbing liquid S absorb from cryogenic vaporizer 20L move come Absorption heat during the steam of refrigerant V, to heat the refrigerant liquid Vf in high-temperature evaporator 20H, is produced in high-temperature evaporator 20H The steam of raw refrigerant V, the steam of the refrigerant V in the high-temperature evaporator 20H of generation, is moved using to high temperature absorber 10H And absorption heat when being absorbed by the absorbing liquid S in high temperature absorber 10H, heating heated medium liquid Wq.In this way, in absorption type heat It pumps in 1A, the structure around absorber 10 shown in Fig. 2 is typically used in high temperature absorber 10H.Even if more than three-level In the case of absorption heat pump, the structure around absorber 10 shown in Fig. 2 is typically used in internal temperature and internal pressure most High absorber.However, in absorption heat pump 1A, other than heated medium W, the heat transfer in low temperature absorption device 10L The refrigerant V of Bottomhole pressure also corresponds to heated medium.Since the heated medium in heat transfer Bottomhole pressure is refrigerant V, Therefore low temperature absorption device 10L can carry out the setting of the purging discharge pipe of heated medium (refrigerant V), purging drain operation. In addition, in absorption heat pump 1,1A, absorber 10 shown in Fig. 2 can be replaced, and apply absorber 10A shown in Fig. 3, figure Absorber 10B shown in 4.

Claims

1. a kind of absorber, is set to absorption heat pump, which passes through absorbing liquid and the absorption heat pump of refrigerant The heat of the heat source fluid to draw importing is recycled, the absorber is characterized in that,

Have multiple heat-transfer pipes, they at least part for liquid heated medium in internal flow,

The absorber is also equipped with inversion portion, the inversion portion by the heated medium of the internal flow of the heat-transfer pipe with It is guided in the mode that the inside of other heat-transfer pipes is flowed round about to other described heat-transfer pipes,

Multiple heat-transfer pipes are configured to mulitpath by the inversion portion,

The mulitpath, which is respectively structured as flow path cross sectional area, becomes same degree,

The absorber is configured to：It is produced using when the outside of the heat-transfer pipe absorbing liquid absorbs the steam of the refrigerant Raw absorption heat, heats the heated medium of the internal flow in the heat-transfer pipe, makes the heated medium Liquid boiling.

2. absorber according to claim 1, which is characterized in that

The mulitpath is respectively structured as flow path cross sectional area equalization.

3. absorber according to claim 1, which is characterized in that

The mulitpath is respectively structured as：The ratio between flow path cross sectional area, which is in, can avoid the liquid of the heated medium from not flowing The defined range that the heat-transfer pipe entered occurs.

4. absorber according to claim 1, which is characterized in that

The mulitpath is respectively structured as：The ratio between flow path cross sectional area is in the quilt for the few flow that can avoid following degree The defined range that the heat-transfer pipe that the liquid of heat medium flows into occurs, the degree refer to the steaming for leading to the heated medium The reduction of the yield of gas is more than the degree of allowed band.

5. the absorber according to any one of Claims 1 to 4, which is characterized in that

Have gas-liquid separator, the liquid of the heated medium detached with gas,

The mulitpath is configured to include first path and final path, and the first path is that the heated medium is initial The path of inflow, the final path are the paths that the heated medium finally flows into,

The gas-liquid separator is configured to：The heated medium of gas-liquid mixture phase is imported from the final path, and The heated medium for the liquid isolated is supplied to the first path,

It is configured to the press-in pressure of the heated medium of the liquid supplied from the gas-liquid separator to the first path, Be given by the difference of the heat-transfer pipe and the height for being arranged on the gas-liquid separator more against the top than the heat-transfer pipe or The pump that pressurized delivered is carried out by the heated medium to liquid is given,

The quantity in the path is configured to：By the press-in pressure of the heated medium supplied to the first path, to The flow for the heated medium that the first path flows into can be ensured that defined flow.

6. the absorber according to any one of Claims 1 to 4, which is characterized in that

The horizontal sectional area of the inversion portion is configured to：It is smaller than the horizontal sectional area of outlet portion liquid chamber, the outlet portion liquid chamber and institute State the outlet side connection in the path that the heated medium in mulitpath finally flows into.

7. absorber according to claim 5, which is characterized in that

8. absorber according to claim 6, which is characterized in that

The inversion portion is made of multiple,

Multiple respective horizontal sectional areas of the inversion portion are configured to：Downstream side court from the flow direction of the heated medium It is gradually reduced to the upstream side,

The inlet portion liquid chamber being connect with the entrance side in path that the heated medium in the mulitpath initially flows into Horizontal sectional area is configured to：The inversion portion smaller than the horizontal sectional area of the inversion portion of most upstream or with most upstream Horizontal sectional area be same degree.

9. the absorber according to any one of Claims 1 to 4, which is characterized in that

The inversion portion is formed by one.

10. absorber according to claim 5, which is characterized in that

The inversion portion is formed by one.

11. the absorber according to any one of Claims 1 to 4, which is characterized in that

It is configured to：In the heat-transfer pipe in path initially flowed into the heated medium in forming the mulitpath Portion, the part boiling of the liquid of the heated medium.

12. a kind of absorption heat pump, which is characterized in that have：

Absorber described in any one of claim 1~11；And

Regenerator, the absorbing liquid that concentration reduces by the steam that the refrigerant is absorbed in the absorber import simultaneously Heating is detached from the refrigerant, so as to rise the concentration of the absorbing liquid.