CN210832621U - Dual-control air conditioning system comprising V-shaped vertical pipe evaporative cooling tower - Google Patents
Dual-control air conditioning system comprising V-shaped vertical pipe evaporative cooling tower Download PDFInfo
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- CN210832621U CN210832621U CN201921343321.6U CN201921343321U CN210832621U CN 210832621 U CN210832621 U CN 210832621U CN 201921343321 U CN201921343321 U CN 201921343321U CN 210832621 U CN210832621 U CN 210832621U
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Abstract
The utility model discloses a double-control air conditioning system comprising a V-shaped standpipe evaporation type cooling tower, which comprises a primary refrigeration system, a secondary refrigeration system, a cooling tower, a switch valve, an air blower, a refrigerant and a conveying pipeline; the first-stage refrigeration system comprises a compressor, a first-stage condenser, a first-stage throttling valve and a first-stage evaporator, wherein the first-stage condenser is arranged in the tower body of the cooling tower; the secondary refrigeration system comprises a fluorine pump, a secondary condenser, a secondary throttle valve and a secondary evaporator, and the secondary condenser and the primary evaporator form a shell-and-tube evaporative condenser; the refrigerant used by the first-stage refrigeration system is the same as that used by the second-stage refrigeration system; the cooling tower comprises a tower body, a precooler, an axial flow fan, a filler, a water tank and a spraying device, wherein the spraying device comprises a water pump, a spraying pipe and a spraying head. Precooler and one-level condenser adopt the standpipe design, are the V type in the cooling tower body and arrange, have solved current cooling tower heat exchange efficiency poor, the poor problem of air conditioning system refrigerating efficiency.
Description
Technical Field
The utility model relates to an air conditioning technology field, specific theory relates to an air conditioning system including cooling tower.
Background
The cooling tower is an important cooling device of an air conditioning system, the evaporative cooling tower uses water as a circulating coolant, the water is uniformly sprayed on the surface of the coil pipe to form a thin uniform water film, and under the strong air inducing action of the axial flow fan, the water film absorbs a large amount of heat from the coil pipe, continuously evaporates into water vapor and is discharged into the atmosphere, so that the temperature of a refrigerant in the coil pipe is reduced.
Most precoolers and condensers of existing evaporative cooling towers are designed by adopting horizontal coils, refrigerant liquid can be accumulated in the coils, the heat exchange efficiency of the coils is reduced, and meanwhile, the amount of the refrigerant participating in refrigeration cycle is reduced, and the refrigeration efficiency of an air conditioning system is reduced.
Disclosure of Invention
The utility model discloses a main aim at provides a two control air conditioning system including V type standpipe evaporation formula cooling tower, can solve current cooling tower heat exchange efficiency poor effectively, the poor problem of air conditioning system refrigerating efficiency.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a dual-control air conditioning system comprising a V-shaped vertical pipe evaporative cooling tower comprises a primary refrigeration system, a secondary refrigeration system, a cooling tower, a switch valve, an air blower, a refrigerant and a conveying pipeline; the first-stage refrigeration system comprises a compressor, a first-stage condenser, a first-stage throttling valve and a first-stage evaporator, wherein the first-stage condenser is arranged in the tower body of the cooling tower; the secondary refrigeration system comprises a fluorine pump, a secondary condenser, a secondary throttle valve and a secondary evaporator, and the secondary condenser and the primary evaporator form a shell-and-tube evaporative condenser; the refrigerant used by the first-stage refrigeration system is the same as that used by the second-stage refrigeration system; the cooling tower comprises a tower body, a precooler, an axial flow fan, a filler, a water tank and a spraying device, wherein the spraying device comprises a water pump, a spraying pipe and a spraying head.
Further, the compressor comprises two compressors, wherein a switch valve is arranged at the inlet of one compressor; the first-stage condenser comprises two condensers, wherein a switch valve is arranged at the inlet of one condenser.
Furthermore, the outlet of the compressor is connected with the inlet of the first-stage condenser and the inlet of the precooler, a switch valve is arranged between the outlet of the compressor and the inlet of the first-stage condenser, and a switch valve is arranged between the outlet of the compressor and the inlet of the precooler.
Furthermore, the primary condenser mainly comprises a plurality of radiating fins and a header pipe; the radiating fins mainly comprise collecting pipes and vertical pipes; the headers are connected by a plurality of rows of vertical pipes, each row of vertical pipes are arranged in a staggered manner, and each row of vertical pipes is provided with a plurality of vertical pipes; a manifold of a plurality of fins is connected to the manifold.
Furthermore, the vertical pipe of the primary condenser can be vertically designed and is obliquely arranged in the tower body of the cooling tower; the first-stage condenser vertical pipe can also be designed in an inclined mode and is horizontally arranged in the tower body of the cooling tower.
Furthermore, the precooler mainly comprises a plurality of radiating fins, a secondary header pipe and a primary header pipe; the radiating fin mainly comprises a collecting pipe, a vertical pipe and fins; the headers are connected by a plurality of rows of vertical pipes, each row of vertical pipes are arranged in a staggered manner, each row is provided with a plurality of vertical pipes, and the vertical pipes are provided with fins; the headers of the plurality of fins are connected to a secondary manifold, which is connected to a primary manifold.
Furthermore, the vertical pipe of the precooler can be vertically designed, and the radiating fins are obliquely arranged in the tower body of the cooling tower; the vertical pipe of the precooler can also be designed in an inclined way, and the radiating fins are horizontally arranged in the tower body of the cooling tower.
Furthermore, the precooler is made of copper.
Furthermore, the outlet of the precooler is connected with the inlet of the first-stage condenser and the inlet of the second-stage condenser, a switch valve is arranged between the outlet of the precooler and the inlet of the first-stage condenser, and a switch valve is arranged between the outlet of the precooler and the inlet of the second-stage condenser.
Further, a plurality of secondary evaporators can be arranged, and a secondary throttle valve is arranged in front of each secondary evaporator.
Furthermore, the main outlet of the secondary evaporator is connected with the inlet of the precooler and the inlet of the secondary condenser, a switch valve is arranged between the main outlet of the secondary evaporator and the inlet of the precooler, and a switch valve is arranged between the main outlet of the secondary evaporator and the inlet of the secondary condenser.
The utility model discloses following beneficial effect has: the dual-control air conditioning system comprises a V-shaped vertical pipe evaporative cooling tower, wherein a precooler and a primary condenser are designed by adopting vertical pipes and are arranged in a V shape in a tower body of the cooling tower, so that the problems of poor heat exchange efficiency and poor refrigeration efficiency of the air conditioning system of the existing cooling tower are solved; the precooler is made of copper, so that the corrosion resistance effect of the precooler can be enhanced.
Drawings
FIG. 1 is a schematic diagram of a dual control air conditioning system including a V-stack evaporative cooling tower.
Fig. 2 is a schematic diagram of a first embodiment of a dual-control air conditioning system including a V-stack evaporative cooling tower.
Fig. 3 is a schematic diagram of a second embodiment of a dual-control air conditioning system including a V-stack evaporative cooling tower.
Fig. 4 is a schematic diagram of a dual-control air conditioning system including a V-shaped standpipe evaporative cooling tower according to a third embodiment.
Fig. 5 is a schematic diagram of a dual-control air conditioning system including a V-shaped standpipe evaporative cooling tower according to a fourth embodiment.
Fig. 6 is a schematic diagram of a fifth embodiment of a dual-control air conditioning system including a V-stack evaporative cooling tower.
Fig. 7 is a schematic diagram of a dual-control air conditioning system including a V-shaped standpipe evaporative cooling tower according to a sixth embodiment.
Fig. 8 is a schematic diagram of a dual-control air conditioning system including a V-shaped standpipe evaporative cooling tower according to a seventh embodiment.
Fig. 9 is a schematic structural diagram of an eighth embodiment of a dual-control air conditioning system including a V-shaped standpipe evaporative cooling tower.
Fig. 10 is a schematic diagram of a cooling tower configuration for a dual-control air conditioning system including a V-stack evaporative cooling tower.
Fig. 11 is a schematic diagram of a primary condenser configuration for a dual control air conditioning system including a V-stack evaporative cooling tower.
Fig. 12 is another schematic diagram of a primary condenser of a dual control air conditioning system including a V-stack evaporative cooling tower.
Fig. 13 is a schematic diagram of a precooler configuration for a dual-control air conditioning system including a V-stack evaporative cooling tower.
Fig. 14 is another schematic diagram of a precooler of a dual-control air conditioning system including a V-stack evaporative cooling tower.
In the figure: the system comprises a cooling tower (1), a first-stage condenser No. 1 (201), a first-stage condenser No. 2 (202), a first-stage throttle valve (3), an evaporative condenser (4), a compressor No. 1 (501), a compressor No. 2 (502), a switch valve No. 1 (601), a switch valve No. 2 (602), a switch valve No. 3 (603), a switch valve No. 4 (604), a switch valve No. 5 (605), a switch valve No. 6 (606), a switch valve No. 7 (607), a switch valve No. 8 (608), a precooler (7), a second-stage throttle valve (8), a second-stage evaporator (9), a blower (10), a fluorine pump (11), a conveying pipeline (12), a refrigerant (13) (not shown in the figure), an axial flow fan (101), a filler (102), a spraying device No. 1 1031, a spraying device No. 2 1032, cooling water (104), a water tank (105), a tower body (106), a primary condenser standpipe (202), a primary condenser header (203), a precooler header (701), a precooler standpipe (702), a precooler secondary header (703), a precooler primary header (704), and fins (705).
Detailed Description
As shown in fig. 1 and 10, the present invention provides a dual-control air conditioning system including a V-shaped standpipe evaporative cooling tower, which includes a primary refrigeration system, a secondary refrigeration system, a cooling tower 1, a switch valve, a blower 10, a refrigerant 13 and a conveying pipeline 12; the first-stage refrigeration system comprises a compressor, a first-stage condenser, a first-stage throttle valve 3 and a first-stage evaporator, wherein the first-stage condenser is arranged in the tower body 106; the secondary refrigeration system comprises a fluorine pump 11, a secondary condenser, a secondary throttle valve 8 and a secondary evaporator 9, wherein the secondary condenser and the primary evaporator form a shell-and-tube evaporative condenser 4; the refrigerant 13 used by the primary refrigeration system and the secondary refrigeration system is the same; the cooling tower 1 comprises a tower body 106, a precooler 7, an axial flow fan 101, a filler 102, a water tank 105 and a spraying device, wherein the spraying device comprises a water pump, a spraying pipe and a spraying head.
As shown in fig. 11 and 12, the primary condenser is mainly composed of fins and a primary condenser header 203; the radiating fins mainly comprise a primary condenser header 201 and a primary condenser standpipe 202; the primary condenser headers 201 are connected by a plurality of rows of primary condenser standpipes 202, each row of primary condenser standpipes 202 are arranged in a staggered manner, and each row is provided with a plurality of primary condenser standpipes 202; a primary condenser header 201 of the plurality of fins is connected to a primary condenser header 203.
As shown in fig. 11, the primary condenser standpipe 202 may be vertically configured and disposed at an angle within the tower 106; as shown in fig. 12, the primary condenser standpipe 202 may also be of an inclined design, arranged horizontally within the tower 106.
As shown in fig. 13 and 14, the precooler 7 is mainly composed of a plurality of cooling fins, a precooler secondary manifold 703 and a precooler primary manifold 704; the cooling fins mainly comprise a precooler header 701, a precooler vertical pipe 702 and fins 705; the precooler headers 701 are connected by a plurality of rows of precooler vertical pipes 702, each row of precooler vertical pipes 702 are arranged in a staggered manner, each row is provided with a plurality of precooler vertical pipes 702, and fins 705 are arranged on the precooler vertical pipes 702; the multi-fin precooler header 701 is connected to a precooler secondary manifold 703, and the precooler secondary manifold 703 is connected to a precooler primary manifold 704.
As shown in fig. 13, the pre-cooler standpipe 702 may be designed vertically, with fins arranged obliquely in the tower 106; as shown in fig. 14, the precooler standpipes 702 may also be designed to be inclined with the fins arranged horizontally within the tower 106.
As shown in fig. 10, the cooling tower 1 includes a tower body 106, a precooler 7, an axial flow fan 101, a packing 102, a water tank 105, and two sets of spray devices, including a water pump, a spray pipe, and a spray header. High-temperature refrigerant 13 enters the primary condenser from the upper part, and cooling water 104 is uniformly sprayed on the surface of the primary condenser through a spraying device to form a thin uniform water film. The high temperature refrigerant 13 transfers heat to the water film through the tube wall, causing the water film temperature to increase and the refrigerant 13 temperature to decrease. Under the strong air inducing action of the axial flow fan 101, air enters from the side surface of the cooling tower 1 and flows through the primary condenser, so that a water film on the surface of the primary condenser is continuously evaporated, the water film absorbs a large amount of latent heat of vaporization from the high-temperature refrigerant 13, the temperature of the refrigerant 13 is further reduced, and the refrigerant 13 is gradually condensed into liquid. The first-stage condenser adopts a vertical pipe design, and the condensed refrigerant 13 liquid can smoothly flow into the bottom and can not be accumulated in the first-stage condenser. The cooling water 104 which is not evaporated falls through the high-efficiency filler 102, is cooled by the fresh air on the side surface, falls into a water tank 105 at the bottom and is recycled. High-temperature refrigerant 13 enters the precooler 7 from the upper part, and under the strong air inducing action of the axial flow fan 101, the air flowing through the primary condenser and the filler 102 continuously flows through the precooler 7 to exchange heat with the refrigerant 13 in the precooler 7, so that the temperature of the refrigerant 13 is reduced.
The utility model discloses a two control air conditioning system including V type standpipe evaporative cooling tower sets for ambient temperature control value T1 and T2(T1 is less than T2), according to different ambient temperature T0, has eight kind implementation modes.
As shown in fig. 2, when the ambient temperature T0 is less than or equal to the ambient temperature control value T1, the on-off valves No. 4 and No. 5 604 and 605 are opened, and the on-off valves No. 1 and No. 601, the on-off valves No. 2 and No. 602, the on-off valves No. 3 and No. 603, the on-off valves No. 6 and No. 606, the on-off valves No. 7 and No. 607, and the on-off valves No. 8 and No.. The fluorine pump 11, the secondary throttle valve 8, the secondary evaporator 9, the precooler 7, the secondary condenser of the evaporative condenser 4 and the delivery pipeline 12 form a refrigeration cycle loop. Under the strong air inducing action of the axial flow fan 101, air enters from the side surface of the cooling tower 1 and flows through the precooler 7, and the refrigerant 13 in the precooler 7 enters the secondary condenser of the evaporative condenser 4 after being cooled, so that the refrigeration cycle is carried out. The room air is cooled by heat exchange with the secondary evaporator 9 by the blower 10. In the mode, the two compressors, the two first-stage condensers and the two groups of spraying devices stop working, and the high-temperature refrigerant 13 is cooled only by air, so that the requirement of refrigeration load is met, and the energy-saving effect of cooling only by using a natural cold source is achieved. As shown in fig. 3, when the cooling load is reduced, the energy saving effect of cooling only by using the natural cooling source can be more achieved.
As shown in fig. 4, when the ambient temperature T0 is greater than the ambient temperature control value T1 and less than the ambient temperature control value T2, the on-off valve No. 1 601, the on-off valve No. 4 604, the on-off valve No. 5 605, the on-off valve No. 7 No. 607, and the on-off valve No. 8 No. 608 are opened, and the on-off valve No. 2 No. 602, the on-off valve No. 3 No. 603, and the on-off valve No. 6 No. 606 are closed. The compressor, the first-stage condenser, the first-stage throttle valve 3, the first-stage evaporator of the evaporative condenser 4 and the conveying pipeline 12 form a first-stage refrigeration circulation loop; the fluorine pump 11, the secondary throttle valve 8, the secondary evaporator 9, the precooler 7, the secondary condenser of the evaporative condenser 4 and the delivery pipeline 12 form a secondary refrigeration cycle loop. The high-temperature refrigerant 13 discharged from the compressors 1 and 501 and 2 is directly introduced into the first- stage condensers 1 and 201 and 202, and is cooled by the cooling water 104. The high temperature refrigerants 13 flowing out of the second-stage evaporators 9 are converged, and then enter the precooler 7 to be cooled by air, and then enter the second-stage condensers of the evaporative condensers 4 to be cooled by the low temperature refrigerants 13 in the first-stage evaporators of the evaporative condensers 4. In this mode, two compressors, two first-stage condensers and two sets of spray devices all work.
As shown in fig. 5, when the refrigeration load is reduced, the on-off valves No. 1 601, No. 4, 604, No. 5, and No. 8 608 are opened, the on-off valves No. 2, 602, No. 3, 603, No. 6, 606, and No. 7 607 are closed, and the compressor No. 2, 502 is stopped. The high-temperature refrigerant 13 discharged from the compressor No. 1, 501 directly enters the first-stage condenser No. 1, 201 and the first-stage condenser No. 2, 202, and is cooled by the cooling water 104. In this mode, one compressor, two first-stage condensers and two sets of spray devices operate.
As shown in fig. 6, when the refrigeration load is further reduced, the on-off valves No. 1 601, No. 4, 604, and No. 5 605 are opened, the on-off valves No. 2 602, No. 3, 603, No. 6, 606, No. 7, 607, and No. 8, 608 are closed, and the compressor No. 2, 502, the primary condenser No. 2, 202, and the shower No. 2 1032 stop operating. The high-temperature refrigerant 13 discharged from the compressor No. 1, 501 directly enters the first-stage condenser No. 1, 201, and is cooled by spraying from the spraying device No. 1, 1031. In this mode, a compressor, a primary condenser and a set of spray devices operate.
As shown in fig. 7, when the ambient temperature T0 is greater than or equal to the ambient temperature control value T2, the on-off valves No. 2 602, No. 3 603, No. 6, No. 607, and No. 8 608 are opened, and the on-off valves No. 1 601, No. 4, 604, and No. 5 605 are closed. The compressor, the precooler 7, the first-stage condenser, the first-stage throttle valve 3, the first-stage evaporator of the evaporative condenser 4 and the conveying pipeline 12 form a first-stage refrigeration cycle loop; the fluorine pump 11, the secondary throttle valve 8, the secondary evaporator 9, the secondary condenser of the evaporative condenser 4 and the delivery pipeline 12 form a secondary refrigeration cycle loop. The high-temperature refrigerant 13 discharged from the compressors 1 and 2 501 and 502 is first introduced into the precooler 7, cooled by air, and then introduced into the first-stage condensers 1 and 201 and the first- stage condensers 2 and 202, and cooled by the cooling water 104. The high-temperature refrigerants 13 flowing out of the secondary evaporators 9 are gathered and directly enter the secondary condenser of the evaporative condenser 4, and are cooled by the low-temperature refrigerants 13 in the primary evaporator of the evaporative condenser 4. In this mode, two compressors, two first-stage condensers and two sets of spray devices all work.
As shown in fig. 8, when the refrigeration load is reduced, the on-off valves No. 2 602, No. 3, No. 603, No. 6, and No. 8 608 are opened, the on-off valves No. 1, No. 601, No. 4, 604, No. 5, and No. 607 are closed, and the compressor No. 2, 502 is stopped. The high-temperature refrigerant 13 discharged from the compressor No. 1, 501 enters the precooler 7, is cooled by air, enters the first-stage condenser No. 1, 201 and the first-stage condenser No. 2, 202, and is cooled by the cooling water 104. In this mode, one compressor, two first-stage condensers and two sets of spray devices operate.
As shown in fig. 9, when the refrigeration load is further reduced, the on-off valves No. 2 602, No. 3 and No. 6 are opened, the on-off valves No. 1 601, No. 4 and 604, No. 5 and 605, No. 7 and 607 and No. 8 and 608 are closed, and the compressor No. 2 502, the primary condenser No. 2 and 202 and the shower No. 2 1032 stop operating. The high-temperature refrigerant 13 discharged from the compressor No. 1 No. 501 enters the precooler 7 first, is cooled by air, enters the first-stage condenser No. 1 No. 201, and is subjected to spray cooling by the spray device No. 1 No. 1031. In this mode, a compressor, a primary condenser and a set of spray devices operate.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (11)
1. A dual-control air conditioning system comprising a V-shaped vertical pipe evaporative cooling tower is characterized by comprising a primary refrigeration system, a secondary refrigeration system, a cooling tower, a switch valve, an air blower, a refrigerant and a conveying pipeline; the first-stage refrigeration system comprises a compressor, a first-stage condenser, a first-stage throttling valve and a first-stage evaporator, wherein the first-stage condenser is arranged in the tower body of the cooling tower; the secondary refrigeration system comprises a fluorine pump, a secondary condenser, a secondary throttle valve and a secondary evaporator, and the secondary condenser and the primary evaporator form a shell-and-tube evaporative condenser; the refrigerant used by the first-stage refrigeration system is the same as that used by the second-stage refrigeration system; the cooling tower comprises a tower body, a precooler, an axial flow fan, a filler, a water tank and a spraying device, wherein the spraying device comprises a water pump, a spraying pipe and a spraying head.
2. The dual control air conditioning system including a V-stack evaporative cooling tower of claim 1, wherein the compressor comprises two compressors, one of which has a switching valve at its inlet; the first-stage condenser comprises two condensers, wherein a switch valve is arranged at the inlet of one condenser.
3. The dual control air conditioning system including a V-shaped standpipe evaporative cooling tower of claim 1, wherein the compressor outlet is connected to the primary condenser inlet and the precooler inlet, a switch valve is disposed between the compressor outlet and the primary condenser inlet, and a switch valve is disposed between the compressor outlet and the precooler inlet.
4. The dual control air conditioning system including a V-stack evaporative cooling tower of claim 1, wherein the primary condenser consists essentially of a plurality of fins and manifolds; the radiating fins mainly comprise collecting pipes and vertical pipes; the headers are connected by a plurality of rows of vertical pipes, each row of vertical pipes are arranged in a staggered manner, and each row of vertical pipes is provided with a plurality of vertical pipes; a manifold of a plurality of fins is connected to the manifold.
5. The dual control air conditioning system including a V-shaped standpipe evaporative cooling tower of claim 4, wherein the primary condenser standpipe may be vertically configured and arranged in an inclined configuration within the cooling tower body; or the vertical pipe of the first-stage condenser is designed in an inclined mode and is horizontally arranged in the tower body of the cooling tower.
6. The dual control air conditioning system including a V-stack evaporative cooling tower of claim 1, wherein the precooler consists essentially of a plurality of fins, a secondary manifold and a primary manifold; the radiating fin mainly comprises a collecting pipe, a vertical pipe and fins; the headers are connected by a plurality of rows of vertical pipes, each row of vertical pipes are arranged in a staggered manner, each row is provided with a plurality of vertical pipes, and the vertical pipes are provided with fins; the headers of the plurality of fins are connected to a secondary manifold, which is connected to a primary manifold.
7. The dual control air conditioning system including a V-stack evaporative cooling tower of claim 6, wherein the pre-cooler stack is designed vertically and the fins are arranged in an inclined manner in the cooling tower body; or the vertical pipe of the precooler is designed in an inclined mode, and the radiating fins are horizontally arranged in the tower body of the cooling tower.
8. The dual control air conditioning system including a V-stack evaporative cooling tower of claim 1, wherein the precooler is made of copper.
9. The dual control air conditioning system including a V-stack evaporative cooling tower of claim 1, wherein the precooler outlet is connected to the primary condenser inlet and the secondary condenser inlet, a switch valve is provided between the precooler outlet and the primary condenser inlet, and a switch valve is provided between the precooler outlet and the secondary condenser inlet.
10. The dual control air conditioning system including a V-stack evaporative cooling tower of claim 1, wherein a plurality of secondary evaporators may be provided, each with a secondary throttle valve in front.
11. The dual control air conditioning system including a V-stack evaporative cooling tower of claim 1 or 10, wherein the secondary evaporator main outlet is connected to the precooler inlet and the secondary condenser inlet, a switch valve is provided between the secondary evaporator main outlet and the precooler inlet, and a switch valve is provided between the secondary evaporator main outlet and the secondary condenser inlet.
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CN110425776A (en) * | 2019-08-19 | 2019-11-08 | 北京丰联奥睿科技有限公司 | A kind of V-type vertical tube evaporative cooling tower and its double control air-conditioning system |
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CN110425776A (en) * | 2019-08-19 | 2019-11-08 | 北京丰联奥睿科技有限公司 | A kind of V-type vertical tube evaporative cooling tower and its double control air-conditioning system |
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