CN100416169C - A regeneration device for dehumidification solution - Google Patents

Abstract

A regeneration device for dehumidification solution. It includes a housing, a dilute solution spray nozzle installed above the housing, a concentrated solution collection chamber located at the bottom of the housing, a concentrated solution outlet pipe located at the bottom of the housing, and a spray nozzle that meets the sprayed dilute solution. air channel. The hot and dry air inlet of the air passage is located in the center of the bottom of the housing, and the concentrated solution collection chamber is in the form of a ring surrounding the inlet; there is a deflector that guides the air around in the upper part of the housing. The solution spray nozzle is located around the deflector, and the wet air outlet of the air channel is located around the dilute solution spray nozzle. The invention can not only make full use of the heat dissipation of the condenser in the air-conditioning system, save energy, but also reduce the adverse thermal impact on the environment; and its structure is simple, the manufacturing cost is low, and it can be combined with existing or newly designed refrigerating The system is simply assembled. In terms of making full use of low-level thermal energy, its total manufacturing and installation costs are also low.

Description

A regeneration device for dehumidification solution

technical field

The invention relates to a solution dehumidification device in an air-conditioning system, in particular to a device for regenerating the dehumidification solution after dehumidification.

Background technique

With the increasingly widespread use of air-conditioning systems, the problem of energy consumption brought by air-conditioning systems has also attracted great attention. According to relevant statistics, the air-conditioning energy consumption per unit area of most public buildings in my country is astonishingly large (5 to 15 times the energy consumption of air-conditioning per unit area of residential housing). Among them, the air-conditioning latent heat load brought by the water vapor in the air-conditioned room is close to half of the total air-conditioning load. Therefore, reducing the humidity (dehumidification) of the room where the air conditioner is used is one of the effective ways to realize the energy saving of the air conditioner. Existing dehumidification methods include cooling dehumidification, liquid absorbent dehumidification (referred to as solution dehumidification), solid adsorbent dehumidification, and the like. Among them, the liquid absorbent and the solid adsorbent have the problem of regeneration of the absorbent (adsorbent). Therefore, the ways and devices to provide energy for the regeneration of absorption (adsorbent) agents have also become a subject of current research. The application number is 200510018081.9, and in the invention patent application titled "A Method of Air Conditioning with Solution Dehumidification Combining Refrigeration Compressor Cooling and Heating Double Side Energy", the regeneration device (regenerative heat exchanger) for solution dehumidification is mentioned. From the point of view of simultaneously designing and manufacturing the whole air-conditioning system including the solution dehumidification device, the design of the regeneration device is more reasonable. However, for an air-conditioning system that originally only has corresponding components such as a compressor and no solution dehumidification device, when the system is transformed (that is, when the solution dehumidification device is added), the existing regeneration device appears to have a relatively complicated structure. It is relatively difficult, in other words, the cost is relatively high in terms of making full use of low-level thermal energy (in this case, utilizing the heat dissipated by the condenser in the air-conditioning system).

Contents of the invention

The purpose of the present invention is to provide a dehumidifier that can make full use of the heat dissipation of the condenser in the air-conditioning system, especially in the case of adding a solution dehumidification device in some air-conditioning systems without a dehumidification device, which has a simple structure, easy modification, and low cost. Solution regeneration device.

The technical solution adopted by the present invention is such a dehumidification solution regeneration device. The same aspect of the device as the prior art is that it includes a housing, a dilute solution spray nozzle installed above the housing, a concentrated solution collection chamber located at the bottom of the housing, and a concentrated solution outlet located at the bottom of the housing. Pipe, and the air channel that meets the sprayed dilute solution, and the front and back of the air channel are respectively provided with a dry hot air inlet and a moist air outlet. The same as the prior art, the dehumidification solution described in the present invention can be an organic solution such as triethylene glycol or ethylene glycol, or a halogen salt solution of lithium bromide, lithium chloride, or calcium chloride, or A mixture of two halogen salt solutions. Its improvement is that the hot and dry air inlet is located at the center of the bottom of the housing, and the concentrated solution collection chamber is an annular groove surrounding the hot and dry air inlet; There is a baffle on the upper part of the casing to guide the dry and hot air to the surroundings, the dilute solution spray nozzle is located around the baffle, and the wet air outlet is located around the dilute solution spray nozzle. A layer of air filter screen is also arranged in the hot and dry air inlet, and a mist separator is installed in the moist air outlet.

When installing and using, the lower part of the hot and dry air inlet is directly facing the hot and dry air (absorbed from the heat emitted by the condenser), or directly connected to the pipe that guides the hot and dry air. Pushed by the heat lift (obviously, when the heat lift is insufficient, an auxiliary air supply device should be added), this hot and dry air enters the air passage in the housing of the regenerative device through the hot and dry air inlet, Under the guidance of the deflector, it is finally discharged from the humid air outlet on the outermost periphery of the upper part of the housing; while the above-mentioned air flows in the housing, the diluted air in the existing or newly added solution dehumidification device The solution is introduced into the dilute solution spray nozzle, and the dilute solution is sprayed downward from the dilute solution spray nozzle, and meets the dry hot air in the air flow channel. After the dilute solution absorbs the heat brought by the dry and hot air, the water in it gradually evaporates, loses water and is concentrated (regenerated); at the same time, the evaporated water enters the flowing dry and hot air to make it gradually become a cooler The humid air with low humidity content is finally discharged from the humid air outlet and enters the atmosphere. Under the action of gravity, the regenerated concentrated solution is collected in the concentrated solution collection chamber, and then introduced from the concentrated solution outlet pipe into the existing or newly added solution dehumidification device to enter the solution dehumidification process. And so on and on.

From the scheme and the process of installation and use of the present invention, it can be clearly seen that, compared with the existing dehumidification solution regeneration device, the present invention does not need or basically does not need to carry out the existing refrigeration device during the installation process. Larger adaptation to the transformation of the present invention, that is to say, the present invention can not only make full use of the heat dissipation of the condenser in the air-conditioning system, which not only saves energy, but also reduces the adverse thermal impact on the environment; and the device itself The structure is simple, the manufacturing cost is low, and it can be simply combined with an existing or newly designed refrigeration system. Therefore, in terms of making full use of low-level thermal energy, its total manufacturing and installation costs are relatively low.

The present invention will be further described below in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 ——The regenerating device of dehumidification solution of the present invention and its combined installation with the existing air source heat pump unit (its exhaust port is on the top) structural schematic diagram

Fig. 2 - another schematic diagram of the regeneration device of the dehumidification solution of the present invention and its combination with the existing air source heat pump unit (its exhaust port is on the side)

Fig. 3 - another structural schematic diagram of the regeneration device of the dehumidification solution of the present invention and its combination with the existing air source heat pump unit (its exhaust port is on the top)

Fig. 4 - another structural schematic diagram of the regeneration device of the dehumidification solution of the present invention and its combination with the existing air source heat pump unit (its exhaust port is on the side)

Fig. 5——The regenerative device of the dehumidification solution of the present invention provided with a packing layer and its structural schematic diagram combined with the existing air source heat pump unit (its exhaust port is on the top)

Fig. 6——Another device for regenerating dehumidification solution of the present invention with a packing layer structure and a structural schematic diagram of its combination installation with the existing air source heat pump unit (its exhaust port is on the top)

Detailed ways

A regeneration device for a dehumidification solution (refer to Figures 1, 2, 3, 4, 5, and 6). The device includes a housing 21, a dilute solution spray nozzle 22 installed above the housing 21, a concentrated solution collection chamber 33 located at the bottom of the housing 21, a concentrated solution outlet pipe 36 located at the bottom of the housing 21, As well as the air channel that meets the sprayed dilute solution, there are dry hot air inlets 32 and wet air 26 air outlets at the front and rear of the air channel. That is to say, the air flow path between the dry hot air inlet 32 and the humid air 26 outlet is called an air flow path. Wherein: the hot and dry air inlet 32 is located at the center of the bottom of the housing 21, and the concentrated solution collection chamber 33 is an annular groove surrounding the hot and dry air inlet 32; The upper part of the body 21 has a deflector 23 that guides dry and hot air to the surroundings. The dilute solution spray nozzle 22 is located around the deflector 23, and the outlet of the moist air 26 is located around the dilute solution spray nozzle 22. . That is to say, the air must pass under the dilute solution spray nozzle 22 (that is, in the misty dilute solution) before the air is discharged from the humid air 26 air outlet. In order to improve the quality of the regeneration solution, a layer of air filter 35 is arranged in the hot and dry air inlet 32, and a mist separator 24 is installed in the moist air 26 air outlet—air filter 35 and mist used in this specific embodiment Separator 24 is the same as or similar to that selected in the prior art, so it will not be described in detail.

Obviously, the dehumidification solution can be an organic solution such as triethylene glycol or ethylene glycol, or a halogen salt solution of lithium bromide, lithium chloride, or calcium chloride, or a mixture of two halogen salt solutions.

As said in the scheme, the bottom of the hot and dry air inlet 32 in the present invention is usually facing the hot and dry air (absorbed from the heat emitted by the condenser), or is directly connected with the pipeline leading this hot and dry air of.

Combining with the introduction about installation and use in the summary of the invention, those skilled in the art can reproduce the present invention after reading the content disclosed in the above specific implementation modes. Therefore, the above specific implementation manner is also a general description of the following examples, and in the following examples, the same content as this general description will not be repeated.

Example 1:

This example is an example of the installation method and its structure of the present invention on the basis of the general description, and the same content as the general description will not be repeated. In this example, the lower part of the dry hot air inlet 32 has a horn cover 20 facing the outlet 31 of an air source heat pump unit. In other words, the horn cover 20 is located above the exhaust port 31 of the air source heat pump unit.

The combination shown in Figure 1 is an existing air source heat pump unit. This unit comprises organic casing, is installed in this casing symmetrically and is respectively placed in two rows of condensers 19 behind each kind of air inlet, a blower fan 18 in the middle above two rows of condensers 19, and its position on the The exhaust port 31 on the top of the unit casing (facing the air outlet side of the blower 18). One way or structure of combining with the air source heat pump unit 17 is that the horn cover 20 is placed directly above the exhaust port 31 of the air source heat pump unit.

The combination shown in Figure 2 is another existing air source heat pump unit. The unit includes an organic casing, a row of condensers 19 installed on one side of the casing and placed behind the side air inlet. The exhaust port 31 of the unit is on the other side of the unit casing. One way or structure of combining with this air source heat pump unit 17 is that the horn cover 20 is as far as possible facing the center of the updraft of hot air discharged from the exhaust port 31 . If, as shown in the figure, there is no air blower in the existing air source heat pump unit 17, and the power to deliver hot and dry air is insufficient, the additional auxiliary air blower 18' can only be installed at the place where the hot and dry air inlet 32 is located. in the pipeline.

It is also obvious that in this example, the distance between the horn cover 20 and the corresponding exhaust port 31 should be appropriate (need to be determined according to products of different specifications and their exhaust air volume). As a principle, the more detailed structure and position of the horn cover 20 should ensure that: ① the hot air discharged from the exhaust port 31 of the air source heat pump unit 17 can enter the hot dry air inlet 32 of the present invention as much as possible ; ② Can not cause the wind "short circuit" between the air inlet of the existing air source heat pump unit 17 and the air outlet 31 thereof.

Example 2:

This example is based on the general description, and also an example of the installation method and structure of the present invention, and the same content as the general description will not be repeated. In this example, the lower part of the dry hot air inlet 32 is directly connected with the exhaust outlet 31 of an air source heat pump unit.

The combination shown in Figure 3 is an existing air source heat pump unit. This unit is the same as the air source heat pump unit 17 shown in FIG. 1 in Embodiment 1 (thus not repeating it). For this air source heat pump unit 17, it can be regarded as connecting the hot and dry air inlet 32 of the present invention directly with the exhaust port 31 through a vertical pipe, or in other words, connecting the hot and dry air inlet 32 At the same time, it is used as the exhaust port 31 of the air source heat pump unit, or conversely, the exhaust port 31 of the air source heat pump unit is used as the dry hot air inlet 32 at the same time.

The combination shown in Figure 4 is another existing air source heat pump unit. This unit is the same as the air source heat pump unit 17 shown in FIG. 2 in Embodiment 1 (thus not repeating it). For this air source heat pump unit 17 , an elbow is connected between the dry hot air inlet 32 and the exhaust port 31 of the air source heat pump unit 17 . Obviously, if there is no air blower in the existing air source heat pump unit 17 as shown in the figure, and the power to convey dry hot air is insufficient, the additional auxiliary air blower 18' can be installed in the air source heat pump unit 17 inside the casing.

Example 3:

This example is an example of further improvement (refer to FIG. 5 ) for improving the regeneration effect of the present invention on the basis of the general description, embodiment 1 or embodiment 2, and the same content as each basis will not be repeated. The improved part is that a packing layer 34 is arranged in the air channel where the solution meets the air below the dilute solution spray nozzle 22 and above the concentrated solution in the concentrated solution collection chamber 33 . In this example, the packing layer 34 is arranged in the air channel where the solution meets the air in a state where the lower layer and the upper layer are horizontal. The connected part extends to the lower layer edge of the packing layer 34 (reference number 37 in FIG. the intersection point of the connecting part").

Example 4:

This example is also on the basis of the general description, embodiment 1 or embodiment 2, in order to improve the further improvement example of the regeneration effect of the present invention (refer to FIG. 6 ), the same content as each basis will not be repeated. The improved part is that a packing layer 34 is arranged in the air channel where the solution meets the air below the dilute solution spray nozzle 22 and above the concentrated solution in the concentrated solution collection chamber 33 . In this example, the packing layer 34 is arranged in the air channel where the solution and the air meet in a state where the lower layer and the upper layer are high in the middle and low around, and the guide plate 23 is connected to the upper part in the housing 21 The connected part extends to the lower layer edge of the packing layer 34 (reference number 37 in FIG. the intersection point of the connecting part").

In Embodiment 3 and Embodiment 4, the fillers in the filler layer 34 are the same as those used in the prior art, and their functions are also the same, so details are not repeated here. Apparently, due to the increase of the filler layer 34, if there is insufficient power to convey hot and dry air, the power of the corresponding air blower 18 and/or auxiliary air blower 18' should be increased.

Example 5:

This example is on the basis of the general description part, embodiment 1, embodiment 2, embodiment 3 or embodiment 4, for the further improvement example that the present invention is installed in the open air (with reference to Fig. 1,2,3,4) , the same content as each foundation will not be repeated. In this example, a rainproof cover 25 is provided above the humid air 26 air outlet. Apparently, during actual installation, care should be taken not only to be able to prevent rain, but also not to affect the unimpeded flow of the humid air 26 when being discharged.

Claims (10)

1. A regenerating device for dehumidification solution, the device comprises a housing (21), a dilute solution spray nozzle (22) installed on the top of the housing (21), a concentrated spray nozzle located at the inner bottom of the housing (21). The solution collection chamber (33), the concentrated solution outlet pipe (36) located at the bottom of the housing (21), and the air flow channel that meets the sprayed dilute solution, and the front and rear of the air flow channel respectively have dry and hot air intake mouth (32) and moist air (26) outlet, it is characterized in that, described hot and dry air inlet (32) is positioned at the center of described housing (21) bottom, and described concentrated solution collecting cavity (33) is Surrounding the annular groove of this hot and dry air inlet (32); there is a guide to guide the hot and dry air around in the upper part of the housing (21) of the hot and dry air inlet (32). Deflector (23), described dilute solution spray nozzle (22) is positioned at the periphery of this deflector (23), and described wet air (26) air outlet is around dilute solution spray nozzle (22) again; One deck of air filter (35) is arranged in the dry hot air inlet (32), and a mist separator (24) is installed in the humid air (26) outlet. 2. The regeneration device of dehumidification solution according to claim 1, characterized in that, the bottom of the dry hot air inlet (32) has a horn facing the exhaust port (31) of an air source heat pump unit cover (20). 3. The regenerating device of dehumidification solution according to claim 1, characterized in that, the bottom of the dry hot air inlet (32) is directly connected with the exhaust port (31) of an air source heat pump unit . 4. The regenerating device of the dehumidification solution according to claim 1, 2 or 3, characterized in that, under the dilute solution spray nozzle (22) and above the concentrated solution in the concentrated solution collection cavity (33) A packing layer (34) is arranged in the air channel where the solution meets the air. 5. The regeneration device of dehumidification solution according to claim 4, characterized in that, the packing layer (34) is arranged on the air flow where the solution and air meet in the state that its lower layer and its upper layer are all horizontal In the channel, the part of the deflector (23) connected to the upper part of the casing (21) extends to the edge of the lower layer of the packing layer (34). 6. The regenerating device of dehumidification solution according to claim 4, characterized in that, the filler layer (34) is set at the intersection of the solution and the air in the state that the lower layer and the upper layer are high in the middle and low in the surroundings. In the air channel, the part of the deflector (23) connected with the upper part of the housing (21) extends to the edge of the lower layer of the packing layer (34). 7. The regenerating device of the dehumidification solution according to claim 1, 2 or 3, characterized in that, above the humid air (26) air outlet, a rainproof cover (25) is arranged. 8. The regeneration device of dehumidifying solution according to claim 4, is characterized in that, above the humid air (26) air outlet, a rainproof cover (25) is arranged. 9. The regeneration device of dehumidification solution according to claim 5, characterized in that, above the humid air (26) outlet, a rainproof cover (25) is arranged. 10. The regeneration device of dehumidifying solution according to claim 6, characterized in that, above the humid air (26) outlet, a rainproof cover (25) is arranged.

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