CN110894971B - Gas boiler absorption heat pump integrated heat supply device - Google Patents
Gas boiler absorption heat pump integrated heat supply device Download PDFInfo
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- CN110894971B CN110894971B CN201911337202.4A CN201911337202A CN110894971B CN 110894971 B CN110894971 B CN 110894971B CN 201911337202 A CN201911337202 A CN 201911337202A CN 110894971 B CN110894971 B CN 110894971B
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 17
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 claims abstract description 76
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 65
- 239000003546 flue gas Substances 0.000 claims abstract description 65
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 55
- 239000007789 gas Substances 0.000 claims abstract description 34
- 239000000779 smoke Substances 0.000 claims abstract description 16
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000009413 insulation Methods 0.000 claims abstract description 8
- 239000003345 natural gas Substances 0.000 claims abstract description 7
- 238000009833 condensation Methods 0.000 claims abstract description 5
- 230000005494 condensation Effects 0.000 claims abstract description 5
- 239000006096 absorbing agent Substances 0.000 claims description 45
- 239000007788 liquid Substances 0.000 claims description 24
- 238000010438 heat treatment Methods 0.000 claims description 12
- 239000003507 refrigerant Substances 0.000 claims description 6
- 239000013589 supplement Substances 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 abstract description 6
- 239000002918 waste heat Substances 0.000 abstract description 6
- 238000009834 vaporization Methods 0.000 description 4
- 230000008016 vaporization Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/18—Hot-water central heating systems using heat pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H8/00—Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation
- F24H8/006—Means for removing condensate from the heater
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2200/00—Heat sources or energy sources
- F24D2200/04—Gas or oil fired boiler
- F24D2200/046—Condensing boilers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2200/00—Heat sources or energy sources
- F24D2200/12—Heat pump
- F24D2200/126—Absorption type heat pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2200/00—Heat sources or energy sources
- F24D2200/32—Heat sources or energy sources involving multiple heat sources in combination or as alternative heat sources
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The invention relates to an integrated heat supply device of a gas boiler and a lithium bromide absorption heat pump, which integrates a boiler and the lithium bromide absorption heat pump and comprises the gas boiler, wherein high-temperature smoke generated by natural gas combustion in a boiler liner of the gas boiler is divided into two parts in a rear smoke chamber in proportion, one part is connected with a smoke inlet of a generator through a heat insulation flue, enters the generator as a heat source, and the other part enters a smoke pipe of the boiler to heat boiler water. On one hand, the flue gas waste heat is deeply utilized, the condensation heat is largely recovered, and the boiler efficiency is improved by more than one percentage point; on the other hand, part of high-temperature flue gas generated by the combustion of natural gas in the boiler furnace is used as a heat source of the generator, a burner is not required to be arranged on the generator, the cost is saved, the integrated design is realized, and the occupied area is small and the volume is small.
Description
Technical Field
The invention belongs to the technical field of boiler and flue gas waste heat deep utilization, and particularly relates to an integrated heat supply device of an absorption heat pump of a gas-fired boiler.
Background
In the flue gas waste heat of the boiler, the proportion of the vaporization latent heat of the vapor is larger, and the vaporization latent heat of the vapor accounts for more than 10% of the low-level heating value of the natural gas. At present, two main methods for recycling the latent heat of vaporization exist. One is to use a condensing heat exchanger to recover the latent heat of vaporization, the device is simple, the initial investment is small, but only a small part of the latent heat can be recovered due to the higher temperature of the heat supply backwater. The other is to recycle the waste heat of the flue gas by using a heat pump, and most of the heat pumps adopt a compression heat pump or a direct-fired absorption heat pump, wherein the compression heat pump consumes high-grade electric energy, and the direct-fired absorption heat pump has the advantages of large initial investment, long recycling period and large occupied area.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide the integrated heat supply device of the absorption heat pump of the gas-fired boiler, which can deeply utilize the waste heat of the flue gas, improve the efficiency of the boiler, and has the advantages of low cost, simple structure, small occupied area and easy installation.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
The utility model provides a gas boiler absorption heat pump integration heating device, includes gas boiler 1, and the high temperature flue gas that the combustion of gas produced in the courage of gas boiler 1 divides into two parts at back smoke chamber in proportion, and one part passes through the flue gas entry of adiabatic flue 18 connection generator 2, gets into generator 2 and as the heat source, and another part gets into boiler tobacco pipe 19, heats the pot water.
The high-temperature flue gas channel is arranged in the rear flue chamber, the high-temperature flue gas channel comprises an insulating flue 18 and a boiler flue pipe 19, an outlet of the insulating flue 18 is connected with a flue gas inlet of the generator 2, inlet sections of the insulating flue 18 and the boiler flue pipe 19 are perpendicular to the high-temperature flue gas direction, two parts of flue gas are divided into two parts of flue gas according to the flow surface of the high-temperature flue gas, the flue gas entering the generator 2 in the insulating flue 18, and the flue gas for heating boiler water is arranged in the boiler flue pipe 19.
The heat source heats the lithium bromide dilute solution 15 in the generator 2 into the lithium bromide concentrated solution 16, the lithium bromide concentrated solution outlet of the generator 2 is connected with the lithium bromide concentrated solution inlet of the absorber 3 through the solution heat exchanger 8, the connecting pipeline between the solution heat exchanger 8 and the absorber 3 is provided with the pressure reducing valve 11, the lithium bromide dilute solution outlet of the absorber 3 is connected with the lithium bromide dilute solution inlet of the generator 2 through the solution heat exchanger 8, the connecting pipeline between the solution heat exchanger 8 and the absorber 3 is provided with the solution pump 10, the smoke tube outlet flue gas 13 (namely the high-temperature flue gas with reduced temperature after heating hot water) is mixed with the flue gas of the generator 2, the mixed flue gas is connected with the hot network backwater 14 for heat exchange in the interior of the mixed flue gas, the first heating of the hot network backwater 14 is carried out in the mixed flue gas, the gas outlet of the gas heat exchanger 6 is connected with the evaporator 5 for releasing heat in the interior of the mixed flue gas, the mixed flue gas is discharged into the atmosphere, the vapor outlet of the evaporator 5 is connected with the absorber 3, the vapor outlet of the vapor heat exchanger 6 is connected with the water inlet of the absorber 3, the lithium bromide dilute solution 16 in the absorber 3 is connected with the water inlet of the absorber 3, the lithium bromide 16 in the heat exchanger 3 is discharged into the vapor, the condensed water 4 is discharged from the condensed water 4, the condensed water 4 is cooled down from the condensed water 4, and the condensed water 4 is connected with the condensed water outlet of the condensed water 4.
A water collector 7 for collecting condensed water in the flue gas is arranged below the evaporator 5, and the treated condensed water is used as primary water supplement of a boiler room or water supplement of a heat supply network.
The gas boiler 1 adopts horizontal furnace, and the periphery longitudinal section is circular, and the furnace longitudinal section is eccentric circular, and the shell of cuboid sets up around the side of gas boiler 1, and generator 2 and absorber 3 set up respectively in the inboard upper left and right corners of cuboid shell, and condenser 4 is located the shell medial surface of generator 2, and solution heat exchanger 8 is located the shell medial surface of absorber 3, and the length direction of generator 2, absorber 3, condenser 4 and solution heat exchanger 8 is all parallel with furnace axial, and the lithium bromide pipeline setting between generator 2 and the absorber 3 is in the top surface outside of cuboid shell.
The gas-liquid heat exchanger 6 is divided into a gas circuit 6-1 and a liquid circuit 6-2, which are respectively arranged at the left and right lower corners of the cuboid housing and are axially parallel to the hearth, and the heat supply network backwater 14 enters from an inlet 14-1 at the left lower corner of the front end of the cuboid housing, enters the liquid circuit 6-2 along the bottom surface of the cuboid housing and leaves the liquid circuit 6-2 from an outlet 14-2 at the right lower corner of the front end of the cuboid housing.
The evaporator 5 is provided at the rear end of the gas boiler 1.
Compared with the prior art, the invention has the beneficial effects that:
(1) The flue gas heat is deeply utilized, the condensation heat is largely recovered, and the boiler efficiency is improved by more than 10 percent.
(2) Part of high-temperature flue gas generated by natural gas combustion in the boiler furnace is used as a heat source of the generator, and a burner is not required to be arranged on the generator, so that the cost is saved.
(3) The integrated design has small occupied area and small volume.
(4) The condensed water in the flue gas which is largely recovered by the water collector can be used as primary net water supplementing, and has remarkable effect on recovering the condensed water.
Drawings
Fig. 1 is a general block diagram of the present invention.
Fig. 2, 3, 4 and 5 are isometric views of the present invention.
Fig. 6 is a front view of the present invention.
Fig. 7 is a right side view of the present invention.
Fig. 8 is a top view of the present invention.
Fig. 9 is a rear view of the present invention.
Fig. 10 is a sectional view of fig. 6 taken along line 1-1.
Fig. 11 is a cross-sectional view 2-2 of fig. 6.
Fig. 12 is a cross-sectional view of 3-3 of fig. 6.
Fig. 13 is a cross-sectional view of fig. 6 at 4-4.
Fig. 14 is a cross-sectional view 5-5 of fig. 7, and also shows a schematic view of the distribution structure of the high-temperature flue gas in the rear flue chamber.
Fig. 15 is a cross-sectional view 6-6 of fig. 7, and also shows a schematic view of the distribution structure of the high-temperature flue gas in the rear flue chamber.
Fig. 16 is a cross-sectional view 7-7 of fig. 7.
Wherein: 1 is a gas boiler; 2 is a generator; 3 is an absorber; 4 is a condenser; 5 is an evaporator; 6 is a gas-liquid heat exchanger; 7 is a water collector; 8 is a solution heat exchanger; 9 is an expansion valve; 10 is a solution pump; 11 is a pressure reducing valve; 12 is the water supply of the heat supply network; 13 is boiler flue gas; 14 is the return water of the heat supply network; 15 is lithium bromide dilute solution; 16 is lithium bromide concentrated solution; 17 is refrigerant vapor; 18 is an insulated flue; 19 is the boiler flue.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings and examples.
As shown in fig. 1, the invention relates to an integrated heat supply device of a gas-fired boiler absorption heat pump, which comprises a gas-fired boiler 1, a generator 2, an absorber 3, a condenser 4, an evaporator 5, a gas-liquid heat exchanger 6, a water collector 7, a solution heat exchanger 8, an expansion valve 9, a solution pump 10, a pressure reducing valve 11 and the like. The high-temperature flue gas generated by the combustion of natural gas in the inner furnace of the gas boiler 1 is proportionally divided into two parts in the rear flue chamber, one part is connected with the flue gas inlet of the generator 2 through the heat insulation flue 18, enters the generator 2 as a heat source, and the other part enters the boiler flue 19 to heat boiler water.
The distribution structure of high temperature flue gas is shown in fig. 14 and 15, a high temperature flue gas channel is arranged in the rear flue chamber, the high temperature flue gas channel comprises an insulation flue 18 and a boiler flue pipe 19, the outlet of the insulation flue 18 is connected with the flue gas inlet of the generator 2, the inlet sections of the insulation flue 18 and the boiler flue pipe 19 are perpendicular to the direction of the high temperature flue gas, the high temperature flue gas channel is divided into two parts of flue gas according to the flow surface of the high temperature flue gas, the flue gas entering the generator 2 in the insulation flue 18, and the flue gas for heating boiler water in the boiler flue pipe 19. The pipe diameter ratio of the large pipe diameter channel heat insulation flue 18 and the small pipe diameter channel boiler smoke pipe 19 is changed according to the power of the boiler, and the power of the boiler is different, and the ratio is also different.
The invention adopts an integrated design, and the whole body is cuboid, the structure is compact, the occupied area is small, and the volume is small. Referring specifically to fig. 2 to 16, the gas boiler 1 adopts a horizontal furnace, the peripheral longitudinal section is circular, the furnace longitudinal section is eccentric circular, the cuboid housing is arranged around the side face of the gas boiler 1, the generator 2 and the absorber 3 are respectively arranged at the left and right upper corners of the inner side of the cuboid housing, the condenser 4 is positioned at the inner side face of the housing of the generator 2, the solution heat exchanger 8 is positioned at the inner side face of the housing of the absorber 3, and the length directions of the generator 2, the absorber 3, the condenser 4 and the solution heat exchanger 8 are all parallel to the axial direction of the furnace, and a lithium bromide pipeline between the generator 2 and the absorber 3 is arranged at the outer side of the top face of the cuboid housing.
The gas-liquid heat exchanger 6 is divided into a gas circuit 6-1 and a liquid circuit 6-2, which are respectively arranged at the left and right lower corners of the cuboid housing and are axially parallel to the hearth, and the heat supply network backwater 14 enters from an inlet 14-1 at the left lower corner of the front end of the cuboid housing, enters the liquid circuit 6-2 along the bottom surface of the cuboid housing and leaves the liquid circuit 6-2 from an outlet 14-2 at the right lower corner of the front end of the cuboid housing.
The evaporator 5 is arranged at the rear end of the gas boiler 1, is arranged in a chimney, and the flue gas is directly discharged into the atmosphere after passing through the evaporator 5. The water collector 7 is arranged below the evaporator 5 and is used for collecting condensed water in flue gas, and the treated condensed water can be used as primary water supplement of a boiler room or water supplement of a heat supply network.
Referring again to fig. 1, the workflow of the present invention is:
in the generator 2, a part of high-temperature flue gas entering the generator 2 is used as a heat source to heat a lithium bromide dilute solution 15 into a lithium bromide concentrated solution 16, a lithium bromide concentrated solution outlet of the generator 2 is connected with a lithium bromide concentrated solution inlet of the absorber 3 through a solution heat exchanger 8, a pressure reducing valve 11 is arranged on a connecting pipeline between the solution heat exchanger 8 and the absorber 3, a lithium bromide dilute solution outlet of the absorber 3 is connected with a lithium bromide dilute solution inlet of the generator 2 through the solution heat exchanger 8, and a solution pump 10 is arranged on a connecting pipeline between the solution heat exchanger 8 and the absorber 3.
The flue gas 13 at the outlet of the flue pipe (namely, the high-temperature flue gas with reduced temperature after the hot water is heated) is mixed with the flue gas at the outlet of the generator 2, the mixed flue gas is connected with the gas-liquid heat exchanger 6 to exchange heat with the heat supply network backwater 14 in the interior of the gas-liquid heat exchanger, the heat supply network backwater 14 is heated for the first time, the flue gas outlet of the gas-liquid heat exchanger 6 is connected with the evaporator 5, the flue gas with reduced temperature through the gas-liquid heat exchanger 6 enters the evaporator 5 to release heat in the interior of the evaporator, and the refrigerant liquid is heated into steam and then discharged into the atmosphere.
The water outlet of the gas-liquid heat exchanger 6 is connected with the water inlet of the absorber 3, the heat supply network backwater 14 after the first heating passes through the absorber 3, the steam outlet of the evaporator 5 is connected with the absorber 3, the refrigerant liquid in the evaporator 5 absorbs the heat released by the flue gas and then evaporates into steam to enter the absorber 3, the lithium bromide concentrated solution 16 in the absorber 3 absorbs the steam and releases the absorption heat, the heat supply network backwater 14 is heated for the second time, and meanwhile, the lithium bromide concentrated solution 16 in the absorber 3 is changed into the lithium bromide dilute solution 15.
The lithium bromide dilute solution 15 in the absorber 3 is pressurized by the solution pump 10 and then exchanges heat between the solution heat exchanger 8 and the lithium bromide concentrated solution 16 in the generator 2, the lithium bromide dilute solution 15 enters the generator 2 after the heat exchange, the lithium bromide concentrated solution 16 enters the absorber 3 and circulates in this way, and when the requirement is met, the circulation is controlled to be suspended through the pressure reducing valve 11.
The water outlet of the absorber 3 is connected with the water inlet of the condenser 4, the heat supply network backwater 14 after the second heating passes through the condenser 4, the refrigerant steam outlet of the generator 2 is connected with the condenser 4, the refrigerant steam generated in the concentration process in the generator 2 enters the condenser 4, the heat supply network backwater 14 is heated for the third time after the condensation heat is released in the condenser 4, the water outlet of the condenser 4 is connected with the water inlet of the gas boiler 1, and the heated heat supply network backwater 14 enters the gas boiler 1 for heating.
In summary, the integrated heat supply device for the gas-fired boiler and the absorption heat pump integrates the boiler and the lithium bromide absorption heat pump, on one hand, the waste heat of the flue gas is deeply utilized, the condensation heat is largely recovered, and the efficiency of the boiler is improved by more than 10 percent; on the other hand, part of high-temperature flue gas generated by the combustion of natural gas in the boiler furnace is used as a heat source of the generator, a burner is not required to be arranged on the generator, the cost is saved, the integrated design is realized, and the occupied area is small and the volume is small.
While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (4)
1. The integrated heat supply device of the absorption heat pump of the gas boiler comprises the gas boiler (1), and is characterized in that high-temperature smoke generated by burning natural gas in a boiler liner of the gas boiler (1) is divided into two parts in proportion in a rear smoke chamber, one part is connected with a smoke inlet of a generator (2) through a heat insulation flue (18), enters the generator (2) as a heat source, and the other part enters a boiler smoke pipe (19) to heat boiler water;
The high-temperature flue gas channel is arranged in the rear flue chamber, the high-temperature flue gas channel comprises an insulating flue (18) and a boiler flue pipe (19), an outlet of the insulating flue (18) is connected with a flue gas inlet of the generator (2), inlet sections of the insulating flue (18) and the boiler flue pipe (19) are perpendicular to the high-temperature flue gas direction, two parts of flue gas are divided according to the flow surface of the high-temperature flue gas, the flue gas entering the generator (2) in the insulating flue (18), and the flue gas for heating boiler water in the boiler flue pipe (19) are separated;
The heat source heats the lithium bromide dilute solution (15) in the generator (2) into a lithium bromide concentrated solution (16), the lithium bromide concentrated solution outlet of the generator (2) is connected with the lithium bromide concentrated solution inlet of the absorber (3) through the solution heat exchanger (8), a pressure reducing valve (11) is arranged on a connecting pipeline between the solution heat exchanger (8) and the absorber (3), the lithium bromide dilute solution outlet of the absorber (3) is connected with the lithium bromide dilute solution inlet of the generator (2) through the solution heat exchanger (8), a solution pump (10) is arranged on a connecting pipeline between the solution heat exchanger (8) and the absorber (3), the smoke tube outlet smoke (13) is mixed with the smoke gas of the generator (2), the mixed smoke gas is connected with the gas-liquid heat exchanger (6) to exchange heat with the heat network backwater (14) in the interior thereof, the heat network backwater (14) is heated for the first time, the smoke gas-liquid heat exchanger (6) is connected with the evaporator (5) to release heat in the interior thereof and then discharged into the atmosphere, the steam outlet of the evaporator (5) is connected with the absorber (3), the water outlet of the gas-liquid heat exchanger (6) is connected with the absorber (3), the water outlet of the absorber (3) is connected with the water inlet of the lithium bromide (16) to the absorber (16) to release the heat water in the second heat network (14), the lithium bromide concentrated solution (16) in the absorber (3) is changed into lithium bromide dilute solution (15), the water outlet of the absorber (3) is connected with the water inlet of the condenser (4), the refrigerant steam outlet of the generator (2) is connected with the condenser (4), the third heating heat supply network backwater (14) for releasing condensation heat in the condenser (4), and the water outlet of the condenser (4) is connected with the water inlet of the gas boiler (1);
The gas boiler (1) adopts horizontal furnace, the periphery longitudinal section is circular, the furnace longitudinal section is eccentric circular, the shell of cuboid sets up around the side of gas boiler (1), generator (2) and absorber (3) set up respectively in the inboard upper left and right corners of cuboid shell, condenser (4) are located the shell medial surface of generator (2), solution heat exchanger (8) are located the shell medial surface of absorber (3), generator (2), absorber (3), the length direction of condenser (4) and solution heat exchanger (8) is all parallel with furnace axial, lithium bromide pipeline setting between generator (2) and the absorber (3) is in the top surface outside of cuboid shell.
2. The integrated heat supply device of the absorption heat pump of the gas-fired boiler according to claim 1, wherein a water collector (7) for collecting condensed water in flue gas is arranged below the evaporator (5), and the treated condensed water is used as primary water supplement of a boiler room or water supplement of a heat supply network.
3. The integrated heat supply device of the absorption heat pump of the gas boiler according to claim 1, wherein the gas-liquid heat exchanger (6) is divided into a gas path (6-1) and a liquid path (6-2), which are respectively arranged at the left and right lower corners of the cuboid housing, and are axially parallel to the hearth, and the heat supply network backwater (14) enters from an inlet (14-1) at the left lower corner of the front end of the cuboid housing, enters the liquid path (6-2) along the bottom surface of the cuboid housing, and leaves the liquid path (6-2) from an outlet (14-2) at the right lower corner of the front end of the cuboid housing.
4. A gas boiler absorption heat pump integrated heating device according to claim 1, characterized in that the evaporator (5) is arranged at the rear end of the gas boiler (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911337202.4A CN110894971B (en) | 2019-12-23 | 2019-12-23 | Gas boiler absorption heat pump integrated heat supply device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911337202.4A CN110894971B (en) | 2019-12-23 | 2019-12-23 | Gas boiler absorption heat pump integrated heat supply device |
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| CN110894971A CN110894971A (en) | 2020-03-20 |
| CN110894971B true CN110894971B (en) | 2024-10-22 |
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| CN114279109A (en) * | 2021-12-29 | 2022-04-05 | 北京华源泰盟节能设备有限公司 | High-efficient gas waste heat utilization system |
| CN118669857B (en) * | 2024-08-20 | 2024-10-25 | 江苏佳得顺热能设备有限公司 | High-efficient intelligent gas room heater |
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| CN211716657U (en) * | 2019-12-23 | 2020-10-20 | 西安交通大学 | Gas boiler absorption heat pump integration heating device |
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| CN104110842A (en) * | 2014-07-22 | 2014-10-22 | 江苏双良锅炉有限公司 | Water boiler system realizing condensation via a smoke type lithium bromide heat pump |
| CN109163477A (en) * | 2018-08-03 | 2019-01-08 | 西安交通大学 | A kind of absorption type heat pump system of gas fired-boiler fume afterheat and condensate-water polishing |
| CN109631390B (en) * | 2019-01-15 | 2020-01-14 | 西安交通大学 | Absorption heat pump flue gas waste heat deep recovery system for realizing boiler full-backwater heating |
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| CN211716657U (en) * | 2019-12-23 | 2020-10-20 | 西安交通大学 | Gas boiler absorption heat pump integration heating device |
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