Solution deep dehumidification unit

Abstract

The solution deep dehumidification unit comprises a dehumidification mechanism, a regeneration mechanism and a cooling mechanism, the dehumidification mechanism comprises a dehumidification box, a first draught fan, a front surface air cooler, a rear surface air cooler, a first sprayer, first filler and a first draught fan, and the regeneration mechanism comprises a regeneration box, a second draught fan, a second sprayer and second filler. The cooling mechanism comprises a first evaporator, a second evaporator, a compressor, a first condenser and a second condenser; the front surface air cooler precools and cools air needing to be treated, the rear surface air cooler heats low-temperature air obtained after solution dehumidification, the dry-bulb temperature of the precooled air is reduced, the relative humidity is increased, at the moment, the solution can absorb moisture in the air, the dehumidification amount and the dehumidification depth are improved, the temperature of the air obtained after solution dehumidification is low, and the dehumidification efficiency is improved. Therefore, heat can be effectively recovered by adopting the rear surface air cooler, and the rear surface air cooler is used for heating the air at the air supply outlet, so that the air supply target requirement is met, and the energy consumption can be saved.

Description

Technical Field

[0001] The utility model relates to the field of refrigeration and dehumidification, in particular to a solution deep dehumidification unit. Background Art

[0002] Solution dehumidification generally utilizes some hygroscopic solutions, such as lithium bromide, lithium chloride, calcium chloride and other solutions to dry the gas to be treated, so as to achieve the purpose of reducing the humidity of the gas; after absorbing the water vapor in the gas, the water enters the solution, the solution concentration decreases, the vapor pressure increases, and the ability to absorb water vapor decreases, and the gas cannot be dried. In order to maintain the solution concentration, after the concentration of absorbed water vapor decreases, regeneration measures are generally required to increase the concentration and discharge the water. Therefore, in the solution dehumidification equipment, heating and cooling mechanisms are required respectively. The cooling mechanism is used to cool the solution, and the heating mechanism is used to heat the solution. The energy consumption in this process is large, especially in deep dehumidification equipment, high-energy consumption equipment is generally used. Therefore, providing a low-energy solution deep dehumidification unit has become an urgent problem to be solved. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In order to solve the above problems in the prior art, the utility model provides a solution deep dehumidification unit.

[0005] (II) Technical solution

[0006] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0007] A solution deep dehumidification unit, comprising a dehumidification mechanism, a regeneration mechanism and a cooling mechanism;

[0008] The dehumidification mechanism includes a dehumidification box, a first fan, a front surface cooler, a rear surface cooler, a first sprayer, a first filler and a first fan;

[0009] The dehumidification box is provided with an air inlet and an air outlet, respectively, and the air inlet of the dehumidification box is sequentially installed with the front surface cooler and the first fan;

[0010] The rear surface cooler is installed at the air supply outlet of the dehumidification box;

[0011] The first filler is arranged in the dehumidification box;

[0012] The first sprayer is installed above the first filler;

[0013] The regeneration mechanism includes a regeneration box, a second fan, a second sprayer and a second filler;

[0014] The regenerator is provided with an air inlet and an air outlet respectively;

[0015] The second fan is installed at the air inlet of the regeneration box;

[0016] The second filler is installed in the regeneration box;

[0017] The second sprayer is installed above the second filler;

[0018] The cooling mechanism includes a first evaporator, a second evaporator, a compressor, a first condenser and a second condenser;

[0019] The first evaporator is installed at the air inlet of the dehumidifier box, the first evaporator is connected to the air inlet of the compressor through a first refrigerant pipeline, and the second evaporator is sequentially connected to the second evaporator, the expansion valve, the drying filter and the first condenser through a second refrigerant pipeline;

[0020] The first condenser is installed at the air inlet of the regeneration box;

[0021] The first condenser is connected to the second condenser and the air outlet of the compressor in sequence through a third refrigerant pipeline.

[0022] Preferably, it also includes a heat exchange mechanism, which includes a heat exchanger, a dehumidification pump and a regeneration pump. The first water inlet of the heat exchanger is connected to the bottom of the dehumidification box through a first water pipe, and the dehumidification pump is installed on the first water pipe. The second water inlet of the heat exchanger is connected to the bottom of the regeneration box through a second water pipe, and the regeneration pump is installed on the second water pipe. The first water outlet of the heat exchanger is connected to the second sprayer through a third water pipe, and the second water outlet of the heat exchanger is connected to the first sprayer through a fourth water pipe.

[0023] Preferably, the first water pipe is connected to a fifth water pipe, the fifth water pipe is sequentially connected to the second evaporator and the first sprayer, the second water pipe is connected to a sixth water pipe, the sixth water pipe is sequentially connected to the second condenser and the second sprayer.

[0024] Preferably, the front surface cooler and the rear surface cooler are connected through a circulating water circuit, and a driving pump is installed on the circulating water circuit.

[0025] Preferably, the first filler and the second filler are both wet curtains.

[0026] (III) Beneficial effects

[0027] The beneficial effects of the utility model are:

[0028] 1. The front surface cooler pre-cools the air to be treated, and the rear surface cooler heats the low-temperature air after the solution is dehumidified. The front surface cooler and the rear surface cooler are connected through a circulating water circuit and driven by a driving pump to achieve front and rear heat recovery. The dry bulb temperature of the air after pre-cooling is reduced and the relative humidity is increased, which is conducive to the solution absorbing moisture in the air, thereby increasing the dehumidification capacity and depth. The air temperature after the solution is dehumidified is low, lower than the human comfort zone, so the rear surface cooler can effectively recover heat for heating the air at the air outlet to achieve the air supply target requirements. No additional heat is required for heating, which can save energy consumption;

[0029] 2. Use the residual cooling recovery mode of the compressor and use dual evaporators. The first evaporator cools the solution, and the second evaporator cools the pre-cooled air. Further cooling can also be performed for preliminary refrigeration and dehumidification, further reducing the temperature of the air to be treated, increasing the relative humidity, and further enhancing the amount and depth of solution dehumidification to achieve the effect of deep dehumidification. In this way, the evaporation temperature of the compressor can be effectively increased, the refrigeration capacity can be provided, and the compressor can operate with high energy efficiency.

[0030] 3. The active solution exchange method is adopted. The solution of the dehumidification box and the regeneration box is actively exchanged, and a heat exchanger is added to reduce the heat loss during the exchange process between the concentrated solution and the dilute solution, so that the heat and cooling capacity of the compressor are fully utilized;

[0031] 4. The low-temperature solution is poured down from the top, and the air to be treated moves upward from the bottom, forming convection, which can maximize the heat and moisture exchange and increase the cooling and dehumidification capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of a solution deep dehumidification unit.

[0033] Description of reference numerals:

[0034] 1. Dehumidification box;

[0035] 2. Front surface cooler;

[0036] 3. The first evaporator;

[0037] 4. The first fan;

[0038] 5. Rear surface cooler;

[0039] 6. The first sprayer;

[0040] 7. First filler;

[0041] 8. Circulating water circuit;

[0042] 9. The first refrigerant pipeline;

[0043] 10. Driving pump;

[0044] 11. Second refrigerant pipeline;

[0045] 12. Second evaporator;

[0046] 13. Expansion valve;

[0047] 14. Dry filter;

[0048] 15. Second condenser;

[0049] 16. Regeneration pump;

[0050] 17. The third refrigerant pipe;

[0051] 18. Compressor;

[0052] 19. Regeneration box;

[0053] 20. The first condenser;

[0054] 21. Second fan;

[0055] 22. Second sprinkler;

[0056] 23. Second filler;

[0057] 24. Heat exchanger;

[0058] 25. First water pipe;

[0059] 26. Second water pipe;

[0060] 27. Fourth water pipe;

[0061] 28. The third water pipe;

[0062] 29. The fifth water pipe;

[0063] 30. Sixth water pipe;

[0064] 31. Dehumidification pump. DETAILED DESCRIPTION

[0065] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0066] Please refer to Figure 1 , the utility model provides a solution deep dehumidification unit, including a dehumidification mechanism, a regeneration mechanism and a cooling mechanism;

[0067] The dehumidification mechanism includes a dehumidification box 1, a first fan 4, a front surface cooler 2, a rear surface cooler 5, a first sprayer 6, a first filler 7 and a first fan 4;

[0068] The dehumidification box 1 is provided with an air inlet and an air outlet, and the air inlet of the dehumidification box 1 is sequentially installed with a front surface cooler 2 and a first fan 4;

[0069] The rear surface cooler 5 is installed at the air supply outlet of the dehumidification box 1;

[0070] The first filler 7 is arranged in the dehumidification box 1;

[0071] The first sprayer 6 is installed above the first filler 7;

[0072] The regeneration mechanism includes a regeneration box 19, a second fan 21, a second sprayer 22 and a second filler 23;

[0073] The regeneration unit is provided with an air inlet and an air outlet;

[0074] The second fan 21 is installed at the air inlet of the regeneration box 19;

[0075] The second filler 23 is installed in the regeneration box 19;

[0076] The second sprayer 22 is installed above the second filler 23;

[0077] The cooling mechanism includes a first evaporator 3, a second evaporator 12, a compressor 18, a first condenser 20 and a second condenser 15;

[0078] The first evaporator 3 is installed at the air inlet of the dehumidifier box 1, and the first evaporator 3 is connected to the air inlet of the compressor 18 through the first refrigerant pipeline 9, and the second evaporator 12 is connected to the second evaporator 12, the expansion valve 13, the drying filter 14 and the first condenser 20 in sequence through the second refrigerant pipeline 11;

[0079] The first condenser 20 is installed at the air inlet of the regeneration box 19;

[0080] The first condenser 20 is connected to the second condenser 15 and the air outlet of the compressor 18 in sequence through the third refrigerant pipe 17;

[0081] When in use, the front surface cooler 2 pre-cools the air to be treated, and the rear surface cooler 5 heats the low-temperature air after the solution is dehumidified. The front surface cooler and the rear surface cooler are connected through a circulating water circuit 8 and driven by a driving pump 10 to realize front and rear heat recovery. The dry-bulb temperature of the air after pre-cooling is reduced and the relative humidity is increased, which is conducive to the solution absorbing moisture in the air, thereby increasing the dehumidification amount and the depth of dehumidification. The air temperature after the solution is dehumidified is relatively low, lower than the human comfort zone, so the rear surface cooler 5 can be used to effectively recover heat for heating the air at the air supply outlet to achieve the air supply target requirements. No additional heat is required for heating, which can save energy.

[0082] The present application adopts the residual cold recovery mode of the compressor 18 and adopts a dual evaporator. The first evaporator 3 cools the solution, and the second evaporator 12 cools the pre-cooled air. Further cooling can also be performed at this time for preliminary refrigeration and dehumidification, thereby further reducing the temperature of the air to be treated, increasing the relative humidity, and further enhancing the amount and depth of solution dehumidification to achieve the effect of deep dehumidification. In this way, the evaporation temperature of the compressor 18 can be effectively increased, providing cooling capacity, and allowing the compressor 18 to operate with high energy efficiency.

[0083] In this embodiment, a heat exchange mechanism is also included, which includes a heat exchanger 24, a dehumidification pump 31 and a regeneration pump 16. The first water inlet of the heat exchanger 24 is connected to the bottom of the dehumidification box 1 through a first water pipe 25, the dehumidification pump 31 is installed on the first water pipe 25, the second water inlet of the heat exchanger 24 is connected to the bottom of the regeneration box 19 through a second water pipe 26, the regeneration pump 16 is installed on the second water pipe 26, the first water outlet of the heat exchanger 24 is connected to the second sprayer 22 through a third water pipe 28, and the second water outlet of the heat exchanger 24 is connected to the first sprayer 6 through a fourth water pipe 27;

[0084] In this embodiment, the first water pipe 25 is connected to a fifth water pipe 29, which is sequentially connected to the second evaporator 12 and the first sprayer 6, and the second water pipe 26 is connected to a sixth water pipe 30, which is sequentially connected to the second condenser 15 and the second sprayer 22;

[0085] In the present application, an active solution exchange method is adopted, the solution of the dehumidification box 1 and the regeneration box 19 is actively exchanged, and a heat exchanger 24 is added to reduce the heat loss during the exchange process between the concentrated solution and the dilute solution, so that the heat and cold of the compressor 18 are fully utilized.

[0086] In this embodiment, the front surface cooler 2 and the rear surface cooler 5 are connected through a circulating water circuit 8 , and a driving pump 10 is installed on the circulating water circuit 8 .

[0087] In this embodiment, both the first filler 7 and the second filler 23 use wet curtains. The low-temperature solution is poured down from the top, and the air to be treated flows upward from the bottom to form convection, which can maximize heat and moisture exchange and increase the cooling capacity and dehumidification capacity.

[0088] The working principle of the utility model is as follows:

[0089] The front surface cooler 2 precools the air to be treated, and the rear surface cooler 5 heats the low-temperature air after the solution is dehumidified. The front surface cooler and the rear surface cooler are connected through a circulating water circuit 8 and driven by a driving pump 10 to realize front and rear heat recovery. The dry-bulb temperature of the air after precooling is reduced and the relative humidity is increased, which is conducive to the solution absorbing moisture in the air, thereby increasing the dehumidification amount and the depth of dehumidification. The air temperature after the solution is dehumidified is low, which is lower than the human body comfort zone. Therefore, the rear surface cooler 5 can effectively recover heat for heating the air at the air outlet to achieve the air supply target requirements. No additional heat is required for heating, which can save energy consumption.

[0090] The pre-cooling recovery mode of the compressor 18 is adopted, and a double evaporator is used. The first evaporator 3 cools the solution, and the second evaporator 12 cools the pre-cooled air. Further cooling can also be performed at this time. Preliminary refrigeration and dehumidification can further reduce the temperature of the air to be treated, increase the relative humidity, and further enhance the amount and depth of solution dehumidification to achieve the effect of deep dehumidification. In this way, the evaporation temperature of the compressor 18 can be effectively increased, the refrigeration capacity can be provided, and the compressor 18 can operate with high energy efficiency;

[0091] Active solution exchange is adopted, the dehumidification box 1 and the regeneration box 19 are actively exchanged, and a heat exchanger 24 is added to reduce the heat loss in the exchange process between the concentrated solution and the dilute solution, so that the heat and cold capacity of the compressor 18 are fully utilized;

[0092] The low-temperature solution is poured down from the top, and the air to be treated moves upward from the bottom, forming convection, which can maximize the heat and moisture exchange and increase the cooling and dehumidification capacity.

[0093] The circuits, electronic components and modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by this utility model does not involve improvements to software and methods.

[0094] The above are only 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 specification and drawings of the present invention, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

[0095] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description 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 may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A solution deep dehumidification unit, characterized in that: It includes a dehumidification mechanism, a regeneration mechanism and a cooling mechanism; The dehumidification mechanism includes a dehumidification box, a first fan, a front surface cooler, a rear surface cooler, a first sprayer, a first filler and a first fan; The dehumidification box is provided with an air inlet and an air outlet, respectively, and the air inlet of the dehumidification box is sequentially installed with the front surface cooler and the first fan; The rear surface cooler is installed at the air supply outlet of the dehumidification box; The first filler is arranged in the dehumidification box; The first sprayer is installed above the first filler; The regeneration mechanism includes a regeneration box, a second fan, a second sprayer and a second filler; The regenerator is provided with an air inlet and an air outlet respectively; The second fan is installed at the air inlet of the regeneration box; The second filler is installed in the regeneration box; The second sprayer is installed above the second filler; The cooling mechanism includes a first evaporator, a second evaporator, a compressor, a first condenser and a second condenser; The first evaporator is installed at the air inlet of the dehumidifier box, the first evaporator is connected to the air inlet of the compressor through a first refrigerant pipeline, and the second evaporator is sequentially connected to the second evaporator, the expansion valve, the drying filter and the first condenser through a second refrigerant pipeline; The first condenser is installed at the air inlet of the regeneration box; The first condenser is connected to the second condenser and the air outlet of the compressor in sequence through a third refrigerant pipeline.

2. A solution deep dehumidification unit according to claim 1, characterized in that: It also includes a heat exchange mechanism, which includes a heat exchanger, a dehumidification pump and a regeneration pump. The first water inlet of the heat exchanger is connected to the bottom of the dehumidification box through a first water pipe, and the dehumidification pump is installed on the first water pipe. The second water inlet of the heat exchanger is connected to the bottom of the regeneration box through a second water pipe, and the regeneration pump is installed on the second water pipe. The first water outlet of the heat exchanger is connected to the second sprayer through a third water pipe, and the second water outlet of the heat exchanger is connected to the first sprayer through a fourth water pipe.

3. A solution deep dehumidification unit according to claim 2, characterized in that: The first water pipe is connected to a fifth water pipe, and the fifth water pipe is sequentially connected to the second evaporator and the first sprayer. The second water pipe is connected to a sixth water pipe, and the sixth water pipe is sequentially connected to the second condenser and the second sprayer.

4. A solution deep dehumidification unit according to claim 1, characterized in that: The front surface cooler and the rear surface cooler are connected through a circulating water circuit, and a driving pump is installed on the circulating water circuit.

5. A solution deep dehumidification unit according to claim 1, characterized in that: The first filler and the second filler are both wet curtains.

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