CN216384414U - Direct evaporative cooling and mechanical refrigeration combined type air conditioning system - Google Patents
Direct evaporative cooling and mechanical refrigeration combined type air conditioning system Download PDFInfo
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- CN216384414U CN216384414U CN202120768574.9U CN202120768574U CN216384414U CN 216384414 U CN216384414 U CN 216384414U CN 202120768574 U CN202120768574 U CN 202120768574U CN 216384414 U CN216384414 U CN 216384414U
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- 238000001816 cooling Methods 0.000 title claims abstract description 33
- 238000005057 refrigeration Methods 0.000 title claims abstract description 29
- 238000004378 air conditioning Methods 0.000 title claims abstract description 26
- 239000000498 cooling water Substances 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 101
- 239000000945 filler Substances 0.000 claims description 26
- 230000001877 deodorizing effect Effects 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 2
- 239000011152 fibreglass Substances 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 238000004134 energy conservation Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 238000007791 dehumidification Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000004148 unit process Methods 0.000 description 1
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Abstract
The utility model discloses a combined type air conditioning system combining direct evaporative cooling and mechanical refrigeration, which comprises a direct evaporative cooler A arranged outdoors and a combined type air conditioner B arranged indoors, wherein the direct evaporative cooler A and the combined type air conditioner B are connected through a pipe network and an air pipe; the combined air conditioning system provided by the utility model can selectively and independently or jointly start the evaporative condenser and the indirect evaporative cooling water chilling unit for different outdoor meteorological conditions, so that free refrigeration caused by evaporative cooling can be used to the maximum extent, and the energy consumption is saved.
Description
Technical Field
The utility model belongs to the technical field of air-conditioning refrigeration, and particularly relates to a combined type air-conditioning system combining direct evaporative cooling and mechanical refrigeration.
Background
The traditional mechanical refrigeration air conditioner mainly comprises four parts, namely an evaporator, a compressor, a condenser and a throttle valve, and the energy consumption of the system is high. And the traditional mechanical refrigeration air conditioning unit processes mixed air after fresh air and return air are mixed, and the air conditioning unit is operated by adopting the minimum fresh air quantity or the requirement lower than the minimum fresh air quantity of a room in the aspect of energy conservation, so that the indoor air quality is reduced, and the work and the life of people are not facilitated. In extreme weather in summer, the outdoor air temperature is too high, which can cause the condenser to have poor heat dissipation, so that the compressor starts overheat protection and stops supplying cold indoors. The evaporative cooling air conditioning technology takes water as a cooling medium, carries out cooling by absorbing heat through water evaporation, and prepares cold air or cold water by utilizing dry air energy through direct or indirect contact of air and water. At present, the technology is widely applied to northwest areas and southeast coastal areas of China. In fact, however, the unit refrigeration performance is not stable due to the influence of outdoor weather conditions (influence of dry-wet bulb temperature difference).
In order to improve the stability of the refrigeration performance of the evaporative cooling unit, there are currently available technical forms combined with the evaporative cooling unit: 1) evaporative cooling and runner dehumidification combined air conditioning system. The air in the air conditioning system can emit a large amount of condensation heat after being dehumidified by the rotating wheel, and the rotating wheel accumulates the regenerative heat, so that the temperature rise of the air after being dehumidified by the rotating wheel is too high, and finally, the temperature of the air after passing through the indirect evaporative cooler is higher, which is unfavorable for the whole system. 2) Evaporative cooling and solution dehumidification combined air conditioning system. The system is complex, the initial investment is obviously increased, the operation is not as convenient as a rotary dehumidifier, the problem of corrosion resistance of equipment is solved, and the problem of poor air quality is caused. 3) An air conditioning system combining evaporative cooling with mechanical cooling. This air conditioning system make full use of shower water carries out the precooling to the new trend through evaporative cooling to indirect evaporative cooling is as entire system's economic ware, reduces mechanical refrigeration system's sensible heat refrigerating output, reduces mechanical refrigeration's dehumidification load, thereby reduces the energy consumption, and the healthy, economic, energy-conserving, low-carbon evaporative cooling green air conditioner of make full use of more.
The utility model relates to a combined type energy-saving air conditioning system combining a direct evaporative cooler and mechanical refrigeration, which can fully play the characteristics of health, economy, energy conservation and low carbon of evaporative cooling, and simultaneously assist the traditional mechanical refrigeration to increase the running stability of a unit. The design concept of the unit conforms to the era situation of energy conservation and emission reduction in China, each functional section is switched and used for different outdoor environments, the evaporative cooling technology and the traditional mechanical refrigeration technology are organically combined, and a healthy, comfortable, green and low-carbon indoor air environment is provided for people.
SUMMERY OF THE UTILITY MODEL
The combined air conditioning system provided by the utility model can selectively and independently or jointly start the evaporative condenser and the indirect evaporative cooling water chilling unit for different outdoor meteorological conditions, so that free refrigeration caused by evaporative cooling can be used to the maximum extent, and the energy consumption is saved.
The utility model provides the following technical scheme:
a combined type air conditioning system combining direct evaporative cooling and mechanical refrigeration comprises a direct evaporative cooler A arranged outdoors and a combined type air conditioner B arranged indoors, wherein the direct evaporative cooler A and the combined type air conditioner B are connected through a pipe network and an air pipe;
the direct evaporative cooler A is sequentially provided with an exhaust fan, a water baffle, a water distributor, a filler, a plate pipe evaporative condenser heat exchange pipe and a water tank from top to bottom, a fresh air inlet is formed in the side wall between the plate pipe evaporative condenser heat exchange pipe and the water reservoir, the exhaust fan is provided with an air pipe connected to one end of the combined air conditioner B, and an air valve is arranged on the air pipe;
the combined air conditioner B is sequentially provided with a water baffle a, a primary filter, a degerming and deodorizing device, a high-temperature surface cooler, a low-temperature surface cooler, a direct evaporative cooler, a water baffle B and a blower from one end connected with an air duct, wherein the direct evaporative cooler comprises a filler B, the upper part of the filler B is provided with a water distributor B, the lower part of the filler B is provided with a water tank B, the water tank B is connected with the water distributor B through a water supply pipe, and the water supply pipe is provided with a water pump B;
the cooling water in the reservoir is supplied to the high-temperature surface air cooler firstly, the water distributor sprays onto the filler a and the heat exchange tube of the plate-tube evaporative condenser through a water pump a, the water outlet pipe of the low-temperature surface air cooler is connected to the two ends of the heat exchange tube of the plate-tube evaporative condenser through a throttling device and a water inlet pipe through a compressor respectively, valves are arranged on the water inlet pipe and the water outlet pipe respectively, the water outlet pipe of the low-temperature surface air cooler is connected with the water outlet pipe of the tail-end surface air cooler through a three-way device, and the water inlet pipe of the low-temperature surface air cooler is connected with the compressor through the three-way device.
Furthermore, the filler a and the filler b are made of glass fiber.
Compared with the prior art, the utility model has the following beneficial effects:
(1) the system is formed by combining two technologies of evaporative cooling and mechanical system, wherein the filler type direct evaporative cooler can provide cold air with the temperature lower than that of outdoor air for a condenser of a mechanical refrigeration system, so that the condensation temperature can be reduced to a certain degree, the input power is reduced, the refrigerating capacity is increased, and meanwhile, because the filler type direct evaporative cooler consumes less electric energy, the COP of the system is finally greatly improved.
(2) High-temperature cold water prepared by the upper-layer filler type direct evaporative cooler is supplied to the lower-layer high-temperature surface cooler by the circulating water pump for supplying and pre-cooling air for the air conditioning unit, so that the refrigerating capacity of the mechanical refrigerating system is reduced.
(3) The cooling water in the heat exchange tube 5 of the plate-tube evaporative condenser is cooled and respectively supplied to the surface cooler 15 and the tail end surface cooler 24 of the lower-layer combined air conditioner, so that the cooling process is refined, the operation energy consumption of the whole set of air conditioning system is reduced, and the purpose of energy conservation is achieved.
Drawings
Fig. 1 is a schematic structural diagram of a combined type air conditioning system combining direct evaporative cooling and mechanical refrigeration according to the present invention.
In the drawings: 1. the system comprises a condensation exhaust fan, 2. water baffles a, 3. a water distributor a, 4. a filler a, 5. a plate pipe evaporative condenser heat exchange pipe, 6. an air inlet, 7. a compressor, 8. a throttling device, 9. a water pump a, 10. a water tank a, 11. a water baffle b, 12. a primary filter, 13. a sterilization and deodorization device, 14. a high-temperature surface cooler, 15. a low-temperature surface cooler, 16. a water tank b, 17. a water pump b, 18. a water distributor b, 19. a filler b, 20. a water baffle c, 21. a blower, 22. an air supply pipe, 23. an even air supply outlet, 24. a tail end surface cooler and 25. an air valve.
Detailed Description
The technical solution of the present invention is clearly and completely described below with reference to specific embodiments. It is obvious that the described embodiments are only some of the embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the combined air conditioning system combining direct evaporative cooling and mechanical refrigeration of the present invention includes a direct evaporative cooler a disposed outdoors and a combined air conditioner B disposed indoors, wherein the direct evaporative cooler a and the combined air conditioner B are connected through a pipe network and an air pipe;
the direct evaporative cooler A is sequentially provided with an exhaust fan 1, a water baffle 2, a water distributor 3, a filler 4, a plate-tube evaporative condenser heat exchange tube 5 and a water tank 10 from top to bottom, a fresh air inlet 6 is arranged on the side wall between the plate-tube evaporative condenser heat exchange tube 5 and the water reservoir 10, an air pipe connected to one end of the combined air conditioner B is arranged on the exhaust fan 1, and an air valve 25 is arranged on the air pipe;
the combined air conditioner B is sequentially provided with a water baffle B11, a primary filter 12, a degerming and deodorizing device 13, a high-temperature surface air cooler 14, a low-temperature surface air cooler 15, a direct evaporative cooler, a water baffle B20 and a blower 21 from one end connected with an air duct, wherein the direct evaporative cooler comprises a filler B19, a water distributor B18 is arranged at the upper part of the filler B19, a water tank B16 is arranged at the lower part of the filler B19, the water tank B16 is connected with the water distributor B18 through a water supply pipe, and a water pump B17 is arranged on the water supply pipe;
the cooling water in the reservoir 10 is firstly supplied to the high-temperature surface cooler 14, sprayed to the filler a4 and the heat exchange tube 5 of the plate-tube evaporative condenser from the water distributor 3 through the water pump a9, the water outlet tube of the low-temperature surface cooler 15 is respectively connected to the two ends of the heat exchange tube 5 of the plate-tube evaporative condenser through the throttling device 8 and the water inlet tube through the compressor 7, the water inlet tube and the water outlet tube are respectively provided with a valve, the water outlet tube of the low-temperature surface cooler 15 and the water outlet tube of the tail-end surface cooler 24 are connected with the throttling device 8 through the tee device, and the water inlet tube of the low-temperature surface cooler 15 and the water inlet tube of the tail-end surface cooler 24 are connected with the compressor 7 through the tee device.
In the combined air conditioning system combining direct evaporative cooling and mechanical refrigeration, a direct evaporative cooler A arranged outdoors supplies low-temperature cold water for a high-temperature surface air cooler 14 and a low-temperature surface air cooler 15 in a combined air conditioner B arranged indoors, air to be treated enters the direct evaporative cooler A through an air inlet 6, is firstly sprayed and cooled by a filler a4 through a water distributor, then is removed of redundant moisture through a water baffle a2, and then is sent into the combined air conditioner B through a condensing exhaust fan 1 through an air pipe. In the combined air conditioner B, redundant water is removed through a water baffle B11, the water is filtered through a primary filter 12 and then enters a degerming and deodorizing device 13, then enters a high-temperature surface cooler 14 for equal-humidity cooling, then enters a low-temperature surface cooler 15 for further equal-humidity cooling, is sprayed and humidified through a water distributor B18 in a filler B19 with a water tank B16, finally passes through a water baffle C20, is cooled again through an air supply pipe 22 through a tail end surface cooler 24 through an air supply pipe 21, and then is sent to the indoor environment C through an even air supply outlet 23.
The combined air conditioning system combining direct evaporative cooling and mechanical refrigeration adopts a full fresh air straight-flow system, and the air treated by the combined air conditioner B can be low-temperature high-humidity air or low-temperature low-humidity air. Can meet different requirements of indoor environment on humidity. The humidity can be controlled by controlling the size of the water distributor b 18. The high-temperature cold water treated by the direct evaporative cooler A is introduced into a high-temperature surface cooler 14 in a combined air conditioner B through a pipeline to cool air, if the air passing through the high-temperature surface cooler 14 cannot meet the temperature requirement of the indoor environment C on inlet air, a compressor 7 for mechanical refrigeration needs to be started, the low-temperature cold water produced by the mechanical refrigeration is introduced into a low-temperature surface cooler 15 in the combined air conditioner B to further treat the air, then the air is sprayed and humidified through a water distributor B18 in a filler B19 with a water tank B16, finally the air passes through a water baffle C20, is cooled again through an air supply pipe 22 and a tail end surface cooler 24 by a blower 21, and is sent into the indoor environment C through an even air supply outlet 23. The design refines the cooling process, if the air treated by the high-temperature surface cooler 14 can meet the air supply requirement, mechanical refrigeration is not needed, if the mechanical refrigeration is needed to be started, the high-temperature surface cooler 14 precools the air, the operation load of the water chilling unit is reduced, the operation cost of the high-temperature surface cooler 14 based on the evaporative cooling principle is far lower than that of the low-temperature surface cooler 15 based on the mechanical refrigeration principle, the whole set of energy consumption of the air conditioning system is reduced, and the purpose of energy conservation is achieved.
Claims (2)
1. A combined type air conditioning system combining direct evaporative cooling and mechanical refrigeration is characterized by comprising a direct evaporative cooler A arranged outdoors and a combined type air conditioner B arranged indoors, wherein the direct evaporative cooler A and the combined type air conditioner B are connected through a pipe network and an air pipe;
the direct evaporative cooler A is sequentially provided with an exhaust fan (1), a water baffle a (2), a water distributor (3), a filler a (4), a plate-tube evaporative condenser heat exchange tube (5) and a water tank a (10) from top to bottom, a fresh air inlet (6) is arranged on the side wall between the plate-tube evaporative condenser heat exchange tube (5) and the water tank a (10), an air pipe connected to one end of the combined air conditioner B is arranged on the exhaust fan (1), and an air valve (25) is arranged on the air pipe;
the combined air conditioner B is sequentially provided with a water baffle B (11), a primary filter (12), a degerming and deodorizing device (13), a high-temperature surface air cooler (14), a low-temperature surface air cooler (15), a direct evaporative cooler, a water baffle c (20) and a blower (21) from one end connected with an air channel, wherein the direct evaporative cooler comprises a filler B (19), a water distributor B (18) is arranged at the upper part of the filler B (19), a water tank B (16) is arranged at the lower part of the filler B (19), the water tank B (16) is connected with the water distributor B (18) through a water supply pipe, and a water pump B (17) is arranged on the water supply pipe;
the cooling water in the water tank a (10) is firstly supplied to the high-temperature surface air cooler (14), the water distributor (3) sprays the cooling water onto the filler a (4) and the heat exchange tube (5) of the plate-tube evaporative condenser through a water pump a (9), a water outlet pipe of the low-temperature surface air cooler (15) is respectively connected to two ends of the heat exchange tube (5) of the plate-tube evaporative condenser through a throttling device (8) and a water inlet pipe through a compressor (7), valves are respectively arranged on the water inlet pipe and the water outlet pipe, the water outlet pipe of the low-temperature surface air cooler (15) and the water outlet pipe of the tail-end surface air cooler (24) are respectively connected with the throttling device (8) through a tee device, and the water inlet pipe of the low-temperature surface air cooler (15) and the water inlet pipe of the tail-end surface air cooler (24) are connected with the compressor (7) through a tee device.
2. A combined direct evaporative cooling and mechanical refrigeration air conditioning system as recited in claim 1 in which the fillers a (4) and b (19) are made of fiberglass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120768574.9U CN216384414U (en) | 2021-04-14 | 2021-04-14 | Direct evaporative cooling and mechanical refrigeration combined type air conditioning system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120768574.9U CN216384414U (en) | 2021-04-14 | 2021-04-14 | Direct evaporative cooling and mechanical refrigeration combined type air conditioning system |
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| Publication Number | Publication Date |
|---|---|
| CN216384414U true CN216384414U (en) | 2022-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120768574.9U Expired - Fee Related CN216384414U (en) | 2021-04-14 | 2021-04-14 | Direct evaporative cooling and mechanical refrigeration combined type air conditioning system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113154559A (en) * | 2021-04-14 | 2021-07-23 | 西安工程大学 | Direct evaporative cooling and mechanical refrigeration combined type air conditioning system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113154559A (en) * | 2021-04-14 | 2021-07-23 | 西安工程大学 | Direct evaporative cooling and mechanical refrigeration combined type air conditioning system |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220426 |
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| CF01 | Termination of patent right due to non-payment of annual fee |