CN215062510U - Dual-channel dehumidification air-conditioning system based on dehumidification heat exchanger - Google Patents
Dual-channel dehumidification air-conditioning system based on dehumidification heat exchanger Download PDFInfo
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- CN215062510U CN215062510U CN202120691284.9U CN202120691284U CN215062510U CN 215062510 U CN215062510 U CN 215062510U CN 202120691284 U CN202120691284 U CN 202120691284U CN 215062510 U CN215062510 U CN 215062510U
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- heat exchanger
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- 238000007791 dehumidification Methods 0.000 title claims abstract description 106
- 238000004378 air conditioning Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000001816 cooling Methods 0.000 claims abstract description 43
- 239000007921 spray Substances 0.000 claims abstract description 19
- 238000005338 heat storage Methods 0.000 claims abstract description 13
- 230000008929 regeneration Effects 0.000 claims abstract description 12
- 238000011069 regeneration method Methods 0.000 claims abstract description 12
- 239000000498 cooling water Substances 0.000 claims abstract description 10
- 238000001179 sorption measurement Methods 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 3
- 238000005057 refrigeration Methods 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- 239000000741 silica gel Substances 0.000 claims description 9
- 229910002027 silica gel Inorganic materials 0.000 claims description 9
- 238000001704 evaporation Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 230000008020 evaporation Effects 0.000 claims description 4
- 238000007590 electrostatic spraying Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229920006395 saturated elastomer Polymers 0.000 claims description 2
- 239000003570 air Substances 0.000 claims 7
- 239000012080 ambient air Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 239000002274 desiccant Substances 0.000 description 2
- 238000009313 farming Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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Abstract
The utility model discloses a binary channels dehumidification air conditioning system based on dehumidification heat exchanger, mainly include solar collector, heat storage water tank, electromagnetism water valve, cooling tower, water pump, fan, electromagnetism blast gate, microchannel dehumidification heat exchanger A, microchannel dehumidification heat exchanger B, spray room, air intake and necessary connecting tube constitution, utilize microchannel dehumidification heat exchanger to reduce the high temperature and high humidity's inlet air humidity, and let in the cooling water to microchannel dehumidification heat exchanger, reduce the influence of adsorption heat to the air conditioner cooling; the air treated by the micro-channel dehumidification heat exchanger is directly evaporated and cooled by a spray chamber; low-temperature air is conveyed into a room through a fan; the two micro-channel dehumidification heat exchangers form double-channel dehumidification, so that continuous and uninterrupted dehumidification and cooling of the air conditioning system are realized; one micro-channel dehumidification heat exchanger carries out dehumidification and temperature reduction, and the other micro-channel dehumidification heat exchanger carries out heating regeneration, thereby forming good circulation.
Description
Technical Field
The utility model relates to a dehumidification air conditioning system, in particular to binary channels dehumidification air conditioning system based on dehumidification heat exchanger belongs to dehumidification air conditioner and solar thermal energy utilization field.
Background
The rapid development of social economy brings huge pressure to the environment, the energy consumption of the air conditioner accounts for about 50% of the energy consumption of a building nowadays, and the energy consumption of the air conditioner is increased by 4 times in 20 years in the future. The energy consumption of evaporation cooling equipment such as a dehumidification air conditioner and the like is far lower than that of a traditional refrigeration air conditioner, and the evaporation cooling equipment can be driven by low-grade energy sources such as solar energy, waste heat and the like. After evaporation and temperature reduction, moisture in the high humidity air needs to be removed, and a fixed bed dehumidifier and a rotary dehumidifier are generally adopted to adsorb the moisture in the wet air. However, the heat of adsorption of the dehumidifying material has a negative effect on the thermal efficiency of the system, which reduces the dehumidifying efficiency. In order to eliminate the influence of the adsorption heat of the dehumidifying material on the dehumidifying process, an inner-cooling dehumidifying heat exchanger is adopted for dehumidifying. Adsorption heat is taken away through cooling water heat exchange in the heat exchanger, and the dehumidification efficiency of the dehumidification system is improved.
The dehumidifying heat exchanger can be combined with solar energy, a heat pump and evaporative cooling to form an air conditioning system capable of continuously dehumidifying. In 2016, Zhao Yao and the like, the double dehumidifying heat exchangers are replaced to continuously operate, the heat regeneration equipment is added, the thermal coefficient of the system is improved by two times, and the electrical coefficient can reach about 13.83. In 2019, Hua and the like combine a dehumidification heat exchanger with a heat pump, outdoor air is at 35 ℃ and 21g/kg, air supply conditions can reach 20 ℃ and 8.5 g/kg, corresponding electrical property coefficients reach 7.14, and the method is highly similar to simulation results. In 2013, Putianshu and the like combine a dehumidification film heat exchanger with a heat accumulating type evaporative cooler to form a self-cooling type solid dehumidification refrigeration air conditioner, simulation is carried out under typical working conditions in summer, the result shows that satisfactory air supply can be provided for an air conditioning room, and the cooling power of the system is improved by about 30% compared with that of the traditional refrigeration air conditioner. The research mainly adopts the evaporative cooler to provide cooling water for the dehumidification heat exchanger, and the direct series connection of the enhanced cooling system has less research. The defects of evaporative cooling include large air supply humidity and small temperature difference, the application range of the evaporative cooling air conditioner is limited, and the defect of large air supply humidity of evaporative cooling can be overcome by the isothermal enthalpy-reduction dehumidification of the dehumidification heat exchanger, so that the indoor temperature and humidity can be effectively adjusted.
The utility model discloses combine together evaporative cooling and dehumidification heat exchanger. Firstly, dehumidifying by a dehumidifying heat exchanger, and then evaporating and cooling. Silica gel desiccant is coated on fins of the heat exchanger, the passing air humidity is reduced, and adsorption heat generated in the dehumidification process is taken away by introducing cooling water into the heat exchanger, so that efficient refrigeration is realized. The effect is obvious in high-humidity areas. The temperature of the regenerative heat source of the drying agent is 60-120 ℃, and low-grade energy sources such as solar energy and the like can be used for energy supply. The heat exchanger can not only take away the adsorption heat, but also provide regeneration heat energy for the drying agent. The high-temperature and high-humidity air is subjected to dehumidification treatment through the dehumidification heat exchanger, and then is subjected to evaporative cooling through the wet curtain and the spray room, so that the problem that the evaporative cooling effect is not obvious in a high-temperature and high-humidity area is solved.
Disclosure of Invention
An object of the utility model is to provide a binary channels dehumidification air conditioning system based on dehumidification heat exchanger uses the dehumidification heat exchanger in the middle of direct evaporative cooling, not only can save the energy, has satisfied the summer cooling demand of facility farming environment or facility farming environment in the high temperature and high humidity climate district moreover.
The utility model discloses mainly realize through following technical scheme: a double-channel dehumidification air-conditioning system based on a dehumidification heat exchanger mainly comprises a solar heat collector, a heat storage water tank, an electromagnetic water valve, a cooling tower, a water pump, a fan, an electromagnetic air valve, a micro-channel dehumidification heat exchanger A, a micro-channel dehumidification heat exchanger B, a spray chamber, an air inlet and necessary connecting pipelines, wherein the micro-channel dehumidification heat exchanger is used for reducing the humidity of inlet air with high temperature and high humidity, cooling water is introduced into the dehumidification heat exchanger, and the influence of adsorption heat on the cooling of an air conditioner is reduced; the air treated by the dehumidification heat exchanger is directly evaporated and cooled by a spray chamber; the low temperature air is delivered to the room by the fan.
The hot water in the heat storage water tank is provided by the solar heat collector, and the hot water is stored in the heat storage water tank under the condition of sufficient sunlight, so that a stable heat source is provided for the regeneration of the micro-channel dehumidification heat exchanger.
The micro-channel dehumidification heat exchanger adopts a micro-channel heat exchanger, and silica gel is solidified on the outer surface of metal by an electrostatic spraying technology on fins, so that the heat exchanger not only has a heat transfer function, but also has a dehumidification function; meanwhile, cooling water is introduced into the flat tubes of the heat exchanger, so that adsorption heat generated by the silica gel in the moisture absorption process can be taken away.
The spray room is an evaporative cooler consisting of a fiber wet curtain, a water storage disc and a spray head, and provides cold air for a house after the micro-channel dehumidification heat exchanger is placed.
The micro-channel dehumidification heat exchanger A and the micro-channel dehumidification heat exchanger B are used alternately in a circulating mode, and when the dehumidification heat exchanger A performs dehumidification and refrigeration, the dehumidification heat exchanger B performs regeneration through the solar heat storage water tank, and vice versa.
And the cooling water of the micro-channel dehumidification heat exchanger and the spray chamber comes from a cooling tower (5).
The fans (11, 22) continuously supply cold air to the room.
Drawings
FIG. 1: a double-channel dehumidification air-conditioning system based on a dehumidification heat exchanger.
In the figure 1, 1-a solar heat collector, 2-a hot water storage tank, 3, 4, 8, 9, 14, 15, 16, 17-an electromagnetic water valve, 5-a cooling tower, 6, 7, 10-a water pump, 11, 22-a fan, 12, 18, 19, 20-an electromagnetic air valve, 23-a microchannel dehumidification heat exchanger A, 23-a microchannel dehumidification heat exchanger B, 21-a spray chamber, and 24, 25-an air inlet.
Detailed Description
The utility model combines evaporative cooling and a micro-channel dehumidification heat exchanger; the environmental air is dehumidified through the micro-channel dehumidification heat exchanger and then is subjected to evaporative cooling through the spray room; an air conditioning system capable of continuously dehumidifying and refrigerating is disclosed; the present invention will be described in detail with reference to the accompanying drawings: as shown in fig. 1, a dual-channel dehumidification air-conditioning system based on a dehumidification heat exchanger mainly comprises a solar heat collector (1), a heat storage water tank (2), electromagnetic water valves (3, 4, 8, 9, 14, 15, 16, 17), a cooling tower (5), water pumps (6, 7, 10), fans (11, 22), electromagnetic air valves (12, 18, 19, 20), a micro-channel dehumidification heat exchanger a (13), a micro-channel dehumidification heat exchanger B (14), a spray room (21), air inlets (24, 25) and necessary connecting pipelines, wherein the left part in the figure is solar heat collection, the middle part is the micro-channel dehumidification heat exchanger, and the right part is evaporative cooling.
Solar collector (1) is continuous in daytime absorbs sunshine and adds hot water, carries to heat storage water tank (3) through water pump (6), and when microchannel dehumidification heat exchanger (13, 23) absorbed the vapor in the air and reached saturation, hot water in the heat storage water tank can provide the heat source for microchannel dehumidification heat exchanger regeneration, makes the silica gel dehydration regeneration on the heat exchanger fin, makes the dehumidification heat exchanger from newly having the dehumidification ability.
The utility model adopts the method of firstly dehumidifying and then evaporating and cooling, so that the evaporating and cooling are not influenced by the external humidity; the outside air firstly enters the micro-channel dehumidification heat exchanger for dehumidification and cooling, and then is directly evaporated and cooled by the spray chamber (21); if the air with higher humidity is directly introduced into the spray chamber for cooling, the evaporative cooling efficiency is lower, the air temperature reduction amplitude is smaller, and the refrigeration effect cannot be achieved.
The utility model takes the important significance of continuous work into consideration, and two micro-channel dehumidification heat exchangers are placed to realize continuous and uninterrupted dehumidification and cooling of the air conditioning system; one micro-channel dehumidification heat exchanger carries out dehumidification and cooling, and the other micro-channel dehumidification heat exchanger carries out heating regeneration to form good circulation; the matrix operation is as follows, for the micro-channel dehumidification heat exchanger A (13), an electromagnetic water valve (3, 8) is opened, hot water enters the heat exchanger, and the micro-channel dehumidification heat exchanger A is regenerated; when the regeneration is completed, closing the electromagnetic water valves (3 and 8), opening the electromagnetic water valves (4 and 9), enabling cooling water to enter the heat exchanger, absorbing water vapor in the air by silica gel on the surface of the heat exchanger, absorbing adsorption heat released by the silica gel and sensible heat in the air by the cooling water, and enabling the microchannel dehumidification heat exchanger A to be a cooling dehumidification stage; for the micro-channel dehumidification heat exchanger B (23), opening electromagnetic water valves (4, 9), closing electromagnetic water valves (3, 8), and regenerating the micro-channel dehumidification heat exchanger B; when the regeneration is complete, closing the electromagnetic water valves (4, 9), opening the electromagnetic water valves (16, 17), and taking the microchannel dehumidification heat exchanger B as a cooling dehumidification stage; thus circulating refrigeration and regeneration.
For the control of the air channel, when the micro-channel dehumidification heat exchanger A (13) is used for dehumidification and refrigeration, the electromagnetic air valves (12 and 20) are opened, the electromagnetic air valves (18 and 19) are closed, and the air dehumidified and cooled by the micro-channel dehumidification heat exchanger A is introduced into the spray chamber by the fan (11) and is sent into the chamber after being subjected to evaporative cooling; the fan (22) discharges the regenerated hot air of the micro-channel dehumidification heat exchanger B (23); when the micro-channel dehumidification heat exchanger is saturated in absorption and is regenerated, the electromagnetic air valve and the electromagnetic water valve are switched; the utility model discloses an adjustment between the valve has not only solved the problem that direct evaporative cooling efficiency is low under the high temperature and high humidity condition, has still realized the refrigeration that dehumidifies in succession, makes evaporative cooling's range of application wider.
Claims (2)
1. A double-channel dehumidification air-conditioning system based on a dehumidification heat exchanger is characterized by mainly comprising a solar heat collector (1), a heat storage water tank (2), electromagnetic water valves (3, 4, 8, 9, 14, 15, 16, 17), a cooling tower (5), water pumps (6, 7, 10), fans (11, 22), electromagnetic air valves (12, 18, 19, 20), a micro-channel dehumidification heat exchanger A (13), a micro-channel dehumidification heat exchanger B (23), a spray room (21), air inlets (24, 25) and necessary connecting pipelines, and is characterized in that the solar heat collector (1) is connected with the heat storage water tank (2) through a water pipe, and the water pump (6) is arranged between the solar heat collector (1) and the heat storage water tank (2); the heat storage water tank (2), the cooling tower (5), the microchannel dehumidification heat exchanger A (13) and the microchannel dehumidification heat exchanger B (23) are connected through a water pipe, the water pump (7) is arranged between the heat storage water tank (2) and the microchannel dehumidification heat exchanger, and the water pump (10) is arranged between the cooling tower (5) and the microchannel dehumidification heat exchanger; microchannel dehumidification heat exchanger A (13), microchannel dehumidification heat exchanger B (23), fan (11, 22), spray room (21) pass through the tuber pipe and connect, fan (11) are placed after spray room (21), bring the dry air after the microchannel dehumidification heat exchanger into spray room (21) and cool down the back air supply once more, ambient air passes through microchannel dehumidification heat exchanger A (13) or microchannel dehumidification heat exchanger B (23) earlier and dehumidifies the cooling, low humidity air rethread spray room (21) carry out direct evaporation refrigeration, and realize the continuous dehumidification refrigeration of air conditioner through the regulation of valve.
2. The dual-channel dehumidification air-conditioning system based on the dehumidification heat exchanger as claimed in claim 1, wherein the micro-channel dehumidification heat exchanger adopts an electrostatic spraying method to solidify silica gel on the outer surface of a metal fin of the heat exchanger, so as to increase the contact area between the silica gel and air, and cooling water in the heat exchanger takes away adsorption heat generated by silica gel moisture absorption; when the silica gel is saturated by moisture absorption, solar energy can be used for heating regeneration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120691284.9U CN215062510U (en) | 2021-04-06 | 2021-04-06 | Dual-channel dehumidification air-conditioning system based on dehumidification heat exchanger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120691284.9U CN215062510U (en) | 2021-04-06 | 2021-04-06 | Dual-channel dehumidification air-conditioning system based on dehumidification heat exchanger |
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| Publication Number | Publication Date |
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| CN215062510U true CN215062510U (en) | 2021-12-07 |
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| CN202120691284.9U Expired - Fee Related CN215062510U (en) | 2021-04-06 | 2021-04-06 | Dual-channel dehumidification air-conditioning system based on dehumidification heat exchanger |
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| Country | Link |
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| CN (1) | CN215062510U (en) |
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2021
- 2021-04-06 CN CN202120691284.9U patent/CN215062510U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211207 |
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| CF01 | Termination of patent right due to non-payment of annual fee |