Two-stage solution deep dehumidification system

Abstract

The two-stage solution deep dehumidification system comprises a solution dehumidification mechanism, a solution regeneration mechanism, a first heat pump mechanism and a second heat pump mechanism, the solution regeneration mechanism comprises a first regeneration box and a second regeneration box, and outdoor fresh air enters the second regeneration box after passing through the first regeneration box and is finally discharged outwards. The solution dehumidification mechanism comprises a first dehumidification box and a second dehumidification box, return air enters the second dehumidification box after passing through the first dehumidification box and finally enters a room, and the first heat pump mechanism comprises a first condenser, a first compressor, a first evaporator, a first expansion valve and a first drying filter; waste heat generated by the compressor is effectively utilized, the energy efficiency of the compressor is maximized, the operation efficiency of the compressor is improved, mutual circulation of low-concentration solutions and mutual circulation of high-concentration solutions in the solution dehumidification mechanism and the solution regeneration mechanism are achieved, heat exchange is conducted through the heat exchanger in solution circulation, the heat loss of the system is reduced, and the heat efficiency of the system is improved. And the refrigeration and dehumidification efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of deep solution dehumidification, in particular to a two-stage deep solution dehumidification system. Background Art

[0002] Traditional dehumidification methods mainly include mechanical dehumidification, adsorption dehumidification, and cooling dehumidification. These methods can meet dehumidification needs in general environments to a certain extent, but their dehumidification effect is often unsatisfactory under high humidity, low temperature, or special operating conditions, and they also have problems such as high energy consumption and complex maintenance.

[0003] As a new dehumidification method, liquid dehumidification technology effectively controls air humidity by utilizing the water absorption and release characteristics of the liquid. However, traditional liquid dehumidification systems still have some technical bottlenecks in practical applications:

[0004] 1. It is difficult to achieve deep dehumidification;

[0005] 2. The traditional solution regeneration dehumidification system has high energy consumption, which is not conducive to energy saving and environmental protection. Utility Model Content

[0006] (1) Technical issues to be resolved

[0007] In order to solve the above problems in the prior art, the utility model provides a two-stage solution deep dehumidification system.

[0008] (2) Technical solution

[0009] In order to achieve the above-mentioned purpose, the main technical solutions adopted by this utility model include:

[0010] A two-stage solution deep dehumidification system, comprising a solution dehumidification mechanism, a solution regeneration mechanism, a first heat pump mechanism, and a second heat pump mechanism;

[0011] The solution regeneration mechanism includes a first regeneration box and a second regeneration box. Outdoor fresh air passes through the first regeneration box and then enters the second regeneration box and is finally discharged to the outside.

[0012] The solution dehumidification mechanism includes a first dehumidification box and a second dehumidification box. The return air passes through the first dehumidification box and then enters the second dehumidification box, and finally enters the room.

[0013] The first heat pump mechanism includes a first condenser, a first compressor, a first evaporator, a first expansion valve and a first drying filter;

[0014] The first condenser, the first compressor, the first evaporator, the first expansion valve and the first drying filter are connected through pipelines to form a circulating heat pump. The first condenser is used to heat the solution in the first regeneration tank, and the first evaporator is used to cool the solution in the second dehumidification tank.

[0015] The second heat pump mechanism includes a second condenser, a second compressor, a second evaporator, a second expansion valve and a second drying filter;

[0016] The second condenser, the second compressor, the second evaporator, the second expansion valve and the second drying filter are connected through pipelines to form a circulating heat pump. The second condenser is used to heat the solution in the second regeneration tank, and the second evaporator is used to cool the solution in the first dehumidification tank.

[0017] Preferably, the solutions in the first regeneration tank and the first dehumidification tank are circulated to each other through a first heat exchanger, and the solutions in the second regeneration tank and the second dehumidification tank are circulated to each other through a second heat exchanger.

[0018] Preferably, the first condenser and the first regeneration box, the first evaporator and the second dehumidification box, the second condenser and the second regeneration box, and the second evaporator and the first dehumidification box are all connected through a circulation mechanism.

[0019] Preferably, the circulation mechanism includes a water inlet pipe, a water outlet pipe and a first circulation pump, one end of the water inlet pipe is connected to the first condenser, the other end of the water inlet pipe is connected to the water inlet of the first circulation pump, one end of the water outlet pipe is connected to the first regeneration tank, and the other end of the water outlet pipe is connected to the drain outlet of the first circulation pump.

[0020] Preferably, the solution regeneration mechanism also includes an outer shell, a partition is provided in the outer shell, and the partition divides the interior of the outer shell into a first regeneration chamber and a second regeneration chamber. The first regeneration box is installed in the first regeneration chamber, and an exhaust port is provided on one side of the first regeneration chamber. The second regeneration box is installed in the second regeneration chamber, and an air inlet is provided on the second regeneration chamber.

[0021] Preferably, the solution regeneration mechanism also includes a heat recovery component, which includes a first heat exchange coil, a second heat exchange coil and a second circulation pump. The first heat exchange coil is installed in the first regeneration chamber, and the second heat exchange coil is installed in the second regeneration chamber. The second circulation pump connects the first heat exchange coil and the second heat exchange coil through a pipeline, so that the liquid circulates in the first heat exchange coil and the second heat exchange coil.

[0022] (3) Beneficial effects

[0023] The beneficial effects of the present invention are:

[0024] 1. This application effectively utilizes the waste heat generated by the compressor to maximize the energy efficiency of the compressor and improve the operating efficiency of the compressor;

[0025] 2. Realize the mutual circulation of low-concentration solution and high-concentration solution in the solution dehumidification mechanism and the solution regeneration mechanism to improve the dehumidification effect;

[0026] 3. The solution circulates through the heat exchanger to exchange heat, reducing system heat loss and improving refrigeration and dehumidification efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural diagram of a two-stage solution deep dehumidification system;

[0028] Figure 2 Schematic diagram of the structure of the solution regeneration mechanism.

[0029] Description of reference numerals:

[0030] 1. Solution regeneration mechanism;

[0031] 11. First regeneration tank; 12. Second regeneration tank; 13. Outer shell; 14. Partition; 15. Air outlet; 16. Air inlet; 17. First heat exchange coil; 18. Second heat exchange coil; 19. Second circulation pump;

[0032] 2. Solution dehumidification mechanism;

[0033] 21. First dehumidification box; 22. Second dehumidification box;

[0034] 3. The first heat pump mechanism;

[0035] 31. First condenser; 32. First compressor; 33. First evaporator; 34. First expansion valve; 35. First filter drier;

[0036] 4. Second heat pump mechanism;

[0037] 41. Second condenser; 42. Second compressor; 44. Second evaporator; 44. Second expansion valve; 45. Second filter drier;

[0038] 5. Circulation mechanism;

[0039] 6. First heat exchanger;

[0040] 7. Second heat exchanger. DETAILED DESCRIPTION

[0041] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation methods in conjunction with the accompanying drawings.

[0042] Please refer to Figures 1 to 2 The utility model provides a two-stage solution deep dehumidification system, comprising a solution dehumidification mechanism 2, a solution regeneration mechanism 1, a first heat pump mechanism 3 and a second heat pump mechanism 4;

[0043] The solution regeneration mechanism 1 includes a first regeneration box 11 and a second regeneration box 12. Outdoor fresh air passes through the first regeneration box 11 and enters the second regeneration box 12 before being discharged to the outside.

[0044] The solution dehumidification mechanism 2 includes a first dehumidification box 21 and a second dehumidification box 22. The return air passes through the first dehumidification box 21 and enters the second dehumidification box 22 before entering the room.

[0045] The first heat pump mechanism 3 includes a first condenser 31, a first compressor 32, a first evaporator 33, a first expansion valve 34 and a first drying filter 35;

[0046] The first condenser 31, the first compressor 32, the first evaporator 33, the first expansion valve 34 and the first drying filter 35 are connected by pipelines to form a circulating heat pump. The first condenser 31 is used to heat the solution in the first regeneration tank 11, and the first evaporator 33 is used to cool the solution in the second dehumidification tank 22.

[0047] The second heat pump mechanism 4 includes a second condenser 41, a second compressor 42, a second evaporator 44, a second expansion valve 44 and a second drying filter 45;

[0048] The second condenser 41, the second compressor 42, the second evaporator 44, the second expansion valve 45 and the second drying filter 45 are connected by pipelines to form a circulating heat pump. The second condenser 41 is used to heat the solution in the second regeneration tank 12, and the second evaporator 44 is used to cool the solution in the first dehumidification tank 21.

[0049] During use, in the solution regeneration mechanism 1, the fresh air first passes through the first regeneration box 11 and then passes through the second regeneration box 12 before being discharged outdoors. After the air is heated by the first regeneration box 11, the high-temperature air is obtained and then enters the second regeneration box 12. The high-temperature air is conducive to the solution concentration regeneration of the second regeneration box 12, so that the solution concentration in the second regeneration box 12 is higher; in the solution dehumidification mechanism 2, the air first passes through the first dehumidification box 21 for pre-cooling and preliminary dehumidification, and then enters the second dehumidification box 22 for deep cooling and dehumidification. In this process, most of the moisture in the air is dehumidified by the first dehumidification box 21, and the air entering the second dehumidification box 22 is low-temperature dry air. After the deep dehumidification of the second dehumidification box 22, the solution concentration in the second dehumidification box 22 is higher than the solution concentration in the first dehumidification box 21;

[0050] Since the temperature of the air entering the first regeneration box 11 is relatively low, the condensation temperature of the first condenser 31 is relatively low, which can be used to preheat the fresh air in the first regeneration box 11. The evaporation temperature of the first evaporator 33 is also relatively low, thereby reducing the temperature of the second dehumidification box 22 and improving the deep dehumidification effect of the second dehumidification box 22; and the air entering the second regeneration box 12 is high-temperature air, which makes the condensation temperature of the second condenser 41 relatively high, thereby increasing the temperature in the second regeneration box 12 and increasing the solution concentration in the second regeneration box 12. The evaporation temperature of the second evaporator 44 is also relatively high, which can be used to precool the air in the first dehumidification box 21.

[0051] In this embodiment, the solutions in the first regeneration tank 11 and the first dehumidification tank 21 are circulated through the first heat exchanger 6, and the solutions in the second regeneration tank 12 and the second dehumidification tank 22 are circulated through the second heat exchanger 7.

[0052] The second regeneration box 12 and the second dehumidification box 22 carry out solution circulation, and the first regeneration box 11 and the first dehumidification box 21 carry out solution circulation, realizing mutual circulation between high-concentration solutions and mutual circulation between low-concentration solutions, and the setting of the first heat exchanger 6 and the second heat exchanger 7 is used to reduce the loss of cold or heat of the solution in the regeneration box and the solution in the dehumidification box.

[0053] In this embodiment, the first condenser 31 and the first regeneration tank 11, the first evaporator 33 and the second dehumidification tank 22, the second condenser 41 and the second regeneration tank 12, and the second evaporator 44 and the first dehumidification tank 21 are all connected through a circulation mechanism 5; the circulation mechanism 5 includes a water inlet pipe, a water outlet pipe and a first circulation pump, one end of the water inlet pipe is connected to the first condenser 31, the other end of the water inlet pipe is connected to the water inlet of the first circulation pump, one end of the water outlet pipe is connected to the first regeneration tank 11, and the other end of the water outlet pipe is connected to the drain outlet of the first circulation pump;

[0054] When in use, the waste heat generated by the first compressor 32 and the second compressor 42 can be effectively utilized through the circulation mechanism 5, making the unit more energy-efficient.

[0055] In this embodiment, the solution regeneration mechanism 1 further includes an outer shell 13, a partition 14 is provided in the outer shell 13, the partition 14 divides the interior of the outer shell 13 into a first regeneration chamber and a second regeneration chamber, the first regeneration tank 11 is installed in the first regeneration chamber, and an exhaust port 15 is provided on one side of the first regeneration chamber, the second regeneration tank 12 is installed in the second regeneration chamber, and an air inlet 16 is provided on the second regeneration chamber, the solution regeneration mechanism 1 further includes a heat recovery component, the heat recovery component includes a first heat exchange coil 17, a second heat exchange coil 18 and a second circulation pump 19, the first heat exchange coil 17 is installed in the first regeneration chamber, the second heat exchange coil 18 is installed in the second regeneration chamber, and the second circulation pump 19 is connected to the first heat exchange coil 17 and the second heat exchange coil 18 through a pipeline, so that the liquid circulates in the first heat exchange coil 17 and the second heat exchange coil 18;

[0056] During use, fresh air enters the first regeneration box 11, and after heating the first heat exchange coil 17, the high-temperature and high-humidity air in the first regeneration chamber is directly discharged through the exhaust port 15, and new fresh air enters the second regeneration chamber from the air inlet 16. Due to the action of the second circulation pump 19, the temperature of the second heat exchange coil 18 increases. After heating the new fresh air, the new fresh air enters the second regeneration box 12 for solution concentration regeneration. Compared with the fresh air discharged from the first regeneration box 11, the fresh air entering the second regeneration chamber has lower humidity, thereby making the concentration of the concentrated regenerated solution in the second regeneration box 12 higher.

[0057] The above are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

[0058] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A two-stage solution deep dehumidification system, characterized in that: It includes a solution dehumidification mechanism, a solution regeneration mechanism, a first heat pump mechanism and a second heat pump mechanism; The solution regeneration mechanism includes a first regeneration box and a second regeneration box. Outdoor fresh air passes through the first regeneration box and then enters the second regeneration box and is finally discharged to the outside. The solution dehumidification mechanism includes a first dehumidification box and a second dehumidification box. The return air passes through the first dehumidification box and then enters the second dehumidification box, and finally enters the room. The first heat pump mechanism includes a first condenser, a first compressor, a first evaporator, a first expansion valve and a first drying filter; The first condenser, the first compressor, the first evaporator, the first expansion valve and the first drying filter are connected through pipelines to form a circulating heat pump. The first condenser is used to heat the solution in the first regeneration tank, and the first evaporator is used to cool the solution in the second dehumidification tank. The second heat pump mechanism includes a second condenser, a second compressor, a second evaporator, a second expansion valve and a second drying filter; The second condenser, the second compressor, the second evaporator, the second expansion valve and the second drying filter are connected through pipelines to form a circulating heat pump. The second condenser is used to heat the solution in the second regeneration tank, and the second evaporator is used to cool the solution in the first dehumidification tank.

2. A two-stage solution deep dehumidification system according to claim 1, characterized in that: The solutions in the first regeneration tank and the first dehumidification tank are circulated to each other through the first heat exchanger, and the solutions in the second regeneration tank and the second dehumidification tank are circulated to each other through the second heat exchanger.

3. A two-stage solution deep dehumidification system according to claim 1, characterized in that: The first condenser and the first regeneration box, the first evaporator and the second dehumidification box, the second condenser and the second regeneration box, and the second evaporator and the first dehumidification box are all connected through a circulation mechanism.

4. A two-stage solution deep dehumidification system according to claim 3, characterized in that: The circulation mechanism includes a water inlet pipe, a water outlet pipe and a first circulation pump, one end of the water inlet pipe is connected to the first condenser, the other end of the water inlet pipe is connected to the water inlet of the first circulation pump, one end of the water outlet pipe is connected to the first regeneration tank, and the other end of the water outlet pipe is connected to the drain outlet of the first circulation pump.

5. The two-stage solution deep dehumidification system according to claim 1, characterized in that: The solution regeneration mechanism also includes an outer shell, in which a partition is provided. The partition divides the interior of the outer shell into a first regeneration chamber and a second regeneration chamber. The first regeneration box is installed in the first regeneration chamber, and an exhaust port is provided on one side of the first regeneration chamber. The second regeneration box is installed in the second regeneration chamber, and an air inlet is provided on the second regeneration chamber.

6. A two-stage solution deep dehumidification system according to claim 5, characterized in that: The solution regeneration mechanism also includes a heat recovery component, which includes a first heat exchange coil, a second heat exchange coil and a second circulation pump. The first heat exchange coil is installed in the first regeneration chamber, and the second heat exchange coil is installed in the second regeneration chamber. The second circulation pump connects the first heat exchange coil and the second heat exchange coil through a pipeline, so that the liquid circulates in the first heat exchange coil and the second heat exchange coil.

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