CN103743265B - Spray water-cooling condenser - Google Patents
Spray water-cooling condenser Download PDFInfo
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- CN103743265B CN103743265B CN201410027962.6A CN201410027962A CN103743265B CN 103743265 B CN103743265 B CN 103743265B CN 201410027962 A CN201410027962 A CN 201410027962A CN 103743265 B CN103743265 B CN 103743265B
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Abstract
The invention relates to a refrigerating device, in particular to a spray water-cooling condenser mainly comprising a containing wall, condensing coils, a circulating water pipe, a circulating water pump, and a water tray. The containing wall is in a tubular structure; inner space of the containing wall forms a draft passage, a water chamber and a spray cooling chamber. The condensing coils and the circulating water pipe are disposed in the spray cooling chamber. The upper ends of the condensing coils are connected to the outside from the upper portion of the spray cooling chamber through an upper connecting pipe. The lower ends of the condensing coils are connected to the outside from the lower portion of the spray cooling chamber through a lower connecting pipe. The circulating water pipe is vertically disposed in the center of inner rings of the condensing coils. The wall of the circulating water pipe is evenly provided with water spouts. The water tray is connected to the lower end of the containing wall. The inner space of the water tray forms a water collection chamber. The circulating water pump is disposed in the water collection chamber. A water outlet of the circulating water pump leads to the water chamber through the circulating water pipe. The spray water-cooling condenser adopting spraying operations has the advantages that cooling coefficient of the condenser is increased, inner pressure of the condensing coils is reduced, compression power consumption is reduced and more power is saved.
Description
Technical field
The present invention relates to a kind of refrigeration plant, be related specifically to a kind of condenser.
Background technology
Condenser is the critical part of refrigeration system, its effect is in the air of outdoor the exchange heat of indoor, its process be the gaseous refrigerant absorbing heat in indoor evaporator by compressor compresses in the pipe of outdoor condenser, the condensation of refrigerant of gaseous state is made to be liquid cold-producing medium, the heat that cold-producing medium is compressed generation in the pipe of condenser is taken out of by fan airstream and is delivered in air, complete transfer process steam being transformed into liquid, cold-producing medium can be done work again and freeze.In refrigeration systems, the radiating effect of condenser has influence on compression power consumption, if improve the radiating effect of condenser, the temperature of condenser is even lower, thus condensing pressure is reduced, compression electric current will correspondingly reduce, just can reduce power consumption, realize energy-saving and emission-reduction.
At present, the condenser adopted in refrigeration system has air cooling fin coiled tube condenser and water-cooled shell and tube condenser, because the specific heat of air is little, compared with specific heat of water, only have 1/4th of water specific heat, certain radiating effect be obtained, enough air quantity and enough area of dissipations must be had, therefore, there is complex structure and the not good shortcoming of cooling effect in air cooling fin coiled tube condenser; There is the shortcoming that in container, current less turbulence is low, cooling ratio is not high in water-cooled shell and tube condenser.
Summary of the invention
The object of the invention is the shortcoming that will overcome existing condenser, design a kind of shower water air-cooled condenser being applicable to applying in refrigeration systems, improve the radiating effect of condenser, the temperature of condenser is even lower, reduce compression power consumption, realize energy-saving and emission-reduction.
A kind of shower water air-cooled condenser of the present invention, it is characterized in that condenser is primarily of going along with sb. to guard him wall body, ventilate and restrain (4), condenser coil, upper communicating pipe (24), lower communicating tube (12), circulating water pipe (6), water circulating pump (17), drip tray (14) and radiator fan (2) composition, wherein, going along with sb. to guard him wall body is cylindrical structure, go along with sb. to guard him on wall body and have air vent (22) or mistake air holes (23), the interior space of going along with sb. to guard him wall body is formed pulls out wind passage (VIII), hydroecium (III) and spraying cooling room (IV), pull out wind passage (VIII), hydroecium (III) and spraying cooling room (IV) are arranged in order from top to bottom, there is dividing plate (27) pulling out between wind passage (VIII) and hydroecium (III) hydroecium, shower plate (5) is had between hydroecium (III) and spraying cooling room (IV), shower plate (5) distributes spray apertures, hydroecium (III) is communicated to spraying cooling room (IV) by spray apertures, tube bank (4) of ventilating is applied in shower plate (5) and dividing plate (27) through hydroecium (III), and the interior space of tube bank (4) of ventilating forms ventilating hole channel (VII), and spraying cooling room (IV) is communicated to by ventilating hole channel (VII) and pulls out wind passage (VIII), condenser coil and circulating water pipe (6) are arranged in spraying cooling room (IV), the upper end of condenser coil picked out condenser by upper communicating pipe (24) from the top of spraying cooling room (IV), the lower end of condenser coil picks out condenser by lower communicating tube (12) from the bottom of spraying cooling room (IV), circulating water pipe (6) stands upright on the inner ring center of condenser coil, and the tube wall of circulating water pipe (6) distributes hole for water spraying, drip tray (14) is connected to the lower end of going along with sb. to guard him wall body, and the interior space of drip tray (14) forms collecting chamber (VI), water circulating pump (17) is arranged in collecting chamber (VI), and the water sucking mouth of water circulating pump (17) is in the bottom of collecting chamber (VI), and the delivery port of water circulating pump (17) is communicated to hydroecium (III) by circulating water pipe (6), radiator fan (2) is arranged on the upper end of pulling out wind passage (VIII), and the air-out direction of radiator fan (2) is by pulling out wind passage (VIII) outside condenser.
In the present invention, pull out wind passage (VIII) and be open upwards or have top cover (30) on the top of pulling out wind passage (VIII), when pulling out wind passage (VIII) and being open upwards, radiator fan (2) is arranged on the upper end of going along with sb. to guard him wall body by blower tray (3); When there being top cover (30) on the top of pulling out wind passage (VIII), top cover (30) is dome structure, airduct (1) is had to pick out at the side of top cover (30), the interior space of airduct (1) forms air-inducing passage (I), radiator fan (2) is arranged in air-inducing passage (I), and radiator fan (2) is arranged on the tube wall of airduct (1) by blower tray (3); Condenser coil is more than two groups, and the condenser coil ecto-entad of more than two groups is successively nested, and the condenser coil of more than two groups is connected between upper communicating pipe (24) and lower communicating tube (12) with parallel way; Upper supporting piece (25) and lower support element (19) is had in condenser, going along with sb. to guard him wall body is inside and outside two layers, internal layer is gone along with sb. to guard him wall body and is gone along with sb. to guard him between wall body with skin and be connected by upper supporting piece (25) and lower support element (19), internal layer is gone along with sb. to guard him wall body and skin and is gone along with sb. to guard him between wall body and have living space, and internal layer goes along with sb. to guard him wall body and the skin space of going along with sb. to guard him between wall body formed wind passage (V); Go along with sb. to guard him at skin air vent (22) that wall body distributes, go along with sb. to guard him at internal layer air holes (23) that wall body distributed, air vent (22) with cross air holes (23) staggered positions mutually; There is spilling water interface (13) to pick out on the top of drip tray (14), have moisturizing interface (16) to access in drip tray (14) bottom; There is foam removal louver (28) pulling out in wind passage (VIII); There is air distribution plate (29) pulling out in wind passage (VIII).
Above-mentioned invention in use, cooling water is joined in collecting chamber (VI) by automatic liquid level control valve, make water circulating pump (17) and radiator fan (2) and refrigeration compressor synchronous operation, during operation, cooling water in collecting chamber (VI) is under the driving of water circulating pump (17), enter into circulating water pipe (6) and hydroecium (III), in spraying cooling room (IV), horizontal spraying cooling water is carried out by the hole for water spraying (7) on circulating water pipe (6), simultaneously, in spraying cooling room (IV), spraying cooling water is downward vertically carried out by the spray apertures on shower plate (5), the spray that the outer wall of condenser coil is subject to cooling water washes away and is lowered the temperature, the cold-producing medium in condenser coil is made to be lowered the temperature and pressure is reduced, reduce the operating current of compressor, radiator fan (2) extracts cooler the air in spraying cooling room (IV), new wind supplements in spraying cooling room (IV) by going along with sb. to guard him air vent (22) on wall body or crossing air holes (23), make the air in spraying cooling room (IV) carry out forced circulation flowing, take away hot gas, after the heat of the cooling water absorption condensation coil pipe of spray, to the air distribute heat of spraying cooling room (IV) internal circulation flow in the process fallen, by the air circulated, heat is taken out of cooler, cooled after shower water distribute heat, accepted by drip tray (14), converge in collecting chamber (VI) and recycle.
Above-mentioned invention utilizes the feature that specific heat of water is large, heat absorption capacity is strong, and the heat of condenser coil is more easily distributed, and adopts spray operation to make cooling water high in the less turbulence of condenser coil outer wall, thus substantially increases the cooling ratio of condenser; Cooling water is carried out spray operation going along with sb. to guard him in wall body, under the wind-drawing effect of radiator fan, make the state being in tiny structure in spraying cooling room (IV), thus make cooling water dissipation to go out outside condenser, reach the object of saving water resource, adopt radiator fan (2) to carry out pulling out wind, the air in spraying cooling room (IV) is forced to flow, take away the heat in spraying cooling room (IV) in time, strengthen radiating effect.During concrete enforcement, the condensed water that indoor evaporator produces is input to as cooling water utilization in collecting chamber (VI) by moisturizing interface (16), and the cooling effect that can make condenser better, more can save electric energy.
In above-mentioned invention, condenser coil is set to more than two groups, the condenser coil ecto-entad of more than two groups is successively nested, can make full use of the space in spraying cooling room (IV), increases film-cooled heat, makes compact conformation, saves floor space.The present invention is compared with the air cooled condenser of routine, and owing to not needing nested radiating fin on coil pipe again, therefore structure is simpler; Because specific heat of water is greater than 4 times of air specific heat, therefore cooling effect is better.
In above-mentioned invention, inside and outside two layers are designed to going along with sb. to guard him wall body, internal layer goes along with sb. to guard him mistake air holes (23) on wall body and outer air vent (22) staggered positions mutually going along with sb. to guard him wall body, to avoid cooling water to spill outside condenser, and can not have influence on air and enters spraying cooling room (IV).
In above-mentioned invention, spilling water interface (13) is had to pick out on the top of drip tray (14), during concrete enforcement, spilling water interface (13) is connected on drainpipe, when will using indoor evaporator produce condensed water be input to utilize as cooling water in collecting chamber (VI) time, unnecessary water can be drained into sewer, and can not health be had influence on.
In above-mentioned invention, pulling out the effect arranging foam removal louver (28) in wind passage (VIII) be: when the little water droplet the air extracted in condenser collides foam removal louver (28) in motion process, understand phase inter coagulation and drop in spraying cooling room (IV), can not be taken out of condenser.
In above-mentioned invention, pulling out the effect arranging air distribution plate (29) in wind passage (VIII) be: the air be heated evenly is flowed out on the cross section pulling out wind passage (VIII), thus air thermally equivalent in spraying cooling room (IV).
The invention has the beneficial effects as follows: a kind of shower water air-cooled condenser of design, utilize the feature that specific heat of water is large, heat absorption capacity is strong, the heat of condenser is more easily distributed, spray operation is adopted to make cooling water high in the less turbulence of condenser coil outer wall, thus substantially increase the cooling ratio of condenser, reduce the pressure in condenser coil, reduce compression power consumption, more can save electric energy.
Accompanying drawing explanation
Fig. 1 is the structure chart that one of the present invention has top cover (30) shower water air-cooled condenser.
Fig. 2 is a kind of shower water air-cooled condenser structure chart pulling out wind passage and be open upwards of the present invention.
Fig. 3 is the A-A sectional view of Fig. 1 or Fig. 2.
In figure: 1. airduct, 2. radiator fan, 3. blower tray, 4. ventilate and restrain, 5. shower plate, 6. circulating water pipe, 7. hole for water spraying, 8. internal layer condenser coil, 9. intermediate layer condenser coil, 10. outer condenser coil, 11. cold-producing medium output interfaces, 12. lower communicating tubes, 13. spilling water interfaces, 14. drip trays, 15. sewage draining exits, 16. moisturizing interfaces, 17. water circulating pumps, the power line of 18. water circulating pumps, 19. lower support elements, 20. skins go along with sb. to guard him wall body, 21. internal layers go along with sb. to guard him wall body, 22. air vents, 23. cross air holes, 24. upper communicating pipes, 25. upper supporting pieces, 26. cold-producing medium input interfaces, 27. dividing plates, 28. foam removal louvers, 29. air distribution plates, 30. top covers, I. air-inducing passage, II. air outlet, III. hydroecium, IV. spraying cooling room, V. cross wind passage, VI. collecting chamber, VII. ventilating hole channel, VIII. pull out wind passage.
Detailed description of the invention
In embodiment shown in embodiment 1 accompanying drawing 1, a kind of shower water air-cooled condenser goes along with sb. to guard him wall body (20) primarily of skin, internal layer goes along with sb. to guard him wall body (21), ventilate and restrain (4), internal layer condenser coil (8), intermediate layer condenser coil (9), outer condenser coil (10), upper communicating pipe (24), lower communicating tube (12), circulating water pipe (6), water circulating pump (17), drip tray (14) and radiator fan (2) composition, wherein, skin goes along with sb. to guard him wall body (20) and internal layer, and to go along with sb. to guard him wall body (21) be cylindrical structure, internal layer is gone along with sb. to guard him wall body (21) and skin and is gone along with sb. to guard him between wall body (20) and be connected by upper supporting piece (25) and lower support element (19), internal layer is gone along with sb. to guard him wall body (21) and skin and is gone along with sb. to guard him between wall body (20) and have living space, internal layer goes along with sb. to guard him wall body (21) and the skin space of going along with sb. to guard him between wall body (20) formed wind passage (V), go along with sb. to guard him at skin air vent (22) that wall body (20) distributes, go along with sb. to guard him at internal layer air holes (23) that wall body (21) distributed, air vent (22) with cross air holes (23) staggered positions mutually, the interior space formation that internal layer goes along with sb. to guard him wall body (21) pulls out wind passage (VIII), hydroecium (III) and spraying cooling room (IV), pull out wind passage (VIII), hydroecium (III) and spraying cooling room (IV) are arranged in order from top to bottom, there are foam removal louver (28) and air distribution plate (29) pulling out in wind passage (VIII), top cover (30) is had on the top of pulling out wind passage (VIII), top cover (30) is dome structure, airduct (1) is had to pick out at the side of top cover (30), the interior space of airduct (1) forms air-inducing passage (I), radiator fan (2) is arranged in air-inducing passage (I), radiator fan (2) is arranged on the tube wall of airduct (1) by blower tray (3), there is dividing plate (27) pulling out between wind passage (VIII) and hydroecium (III) hydroecium, shower plate (5) is had between hydroecium (III) and spraying cooling room (IV), shower plate (5) distributes spray apertures, and hydroecium (III) is communicated to spraying cooling room (IV) by spray apertures, tube bank (4) of ventilating is applied in shower plate (5) and dividing plate (27) through hydroecium (III), and the interior space of tube bank (4) of ventilating forms ventilating hole channel (VII), and spraying cooling room (IV) is communicated to by ventilating hole channel (VII) and pulls out wind passage (VIII), outer condenser coil (10), intermediate layer condenser coil (9), internal layer condenser coil (8) and circulating water pipe (6) are arranged in spraying cooling room (IV), outer condenser coil (10), intermediate layer condenser coil (9) is successively nested with internal layer condenser coil (8) ecto-entad, outer condenser coil (10), the upper end of intermediate layer condenser coil (9) and internal layer condenser coil (8) is connected in parallel on communicating pipe (24), the cold-producing medium input interface (26) of upper communicating pipe (24) picks out condenser from the top of spraying cooling room (IV), outer condenser coil (10), the lower end of intermediate layer condenser coil (9) and internal layer condenser coil (8) is connected in parallel on lower communicating tube (12), the cold-producing medium output interface (11) of lower communicating tube (12) picks out condenser from the bottom of spraying cooling room (IV), circulating water pipe (6) stands upright on the inner ring center of condenser coil, the tube wall of circulating water pipe (6) distributes hole for water spraying, drip tray (14) is connected to the lower end of going along with sb. to guard him wall body, and the interior space of drip tray (14) forms collecting chamber (VI), has spilling water interface (13) to pick out, have moisturizing interface (16) to access in drip tray (14) bottom on the top of drip tray (14), water circulating pump (17) is arranged in collecting chamber (VI), and the water sucking mouth of water circulating pump (17) is in the bottom of collecting chamber (VI), and the delivery port of water circulating pump (17) is communicated to hydroecium (III) by circulating water pipe (6), radiator fan (2) is arranged on the upper end of pulling out wind passage (VIII), and the air-out direction of radiator fan (2) is by pulling out wind passage (VIII) outside condenser.In the present embodiment, the condensed water that indoor evaporator produces is input in collecting chamber (VI) is utilized as cooling water by moisturizing interface (16); Spilling water interface (13) is connected on drainpipe.
When the present embodiment uses, cooling water is joined in collecting chamber (VI) by automatic liquid level control valve, make water circulating pump (17) and radiator fan (2) and compressor synchronous operation, during operation, cooling water in collecting chamber (VI) is under the driving of water circulating pump (17), enter into circulating water pipe (6) and hydroecium (III), in spraying cooling room (IV), horizontal spraying cooling water is carried out by the hole for water spraying (7) on circulating water pipe (6), simultaneously, in spraying cooling room (IV), spraying cooling water is downward vertically carried out by the spray apertures on shower plate (5), the spray making the outer wall of condenser coil be subject to cooling water washes away and is lowered the temperature, the cold-producing medium in condenser coil is made to be lowered the temperature and pressure is reduced, radiator fan (2) extracts cooler the air in spraying cooling room (IV), new wind supplements in spraying cooling room (IV) by going along with sb. to guard him air vent (22) on wall body or crossing air holes (23), make the air in spraying cooling room (IV) carry out forced circulation flowing, take away hot gas, after the heat of the cooling water absorption condensation coil pipe of spray, to the air distribute heat of spraying cooling room (IV) internal circulation flow in the process fallen, by the air circulated, heat is taken out of cooler, cooled after shower water distribute heat, accepted by drip tray (14), converge in collecting chamber (VI) and recycle.
In embodiment shown in embodiment 2 accompanying drawing 2, be on the basis of the first embodiment, change into and pull out wind passage (VIII) and be open upwards, radiator fan (2) is arranged on the upper end of going along with sb. to guard him wall body by blower tray (3).Other side is basically the same as those in the first embodiment, and repeats no more.
Claims (7)
1. a shower water air-cooled condenser, it is characterized in that condenser is primarily of going along with sb. to guard him wall body, ventilate and restrain (4), condenser coil, upper communicating pipe (24), lower communicating tube (12), circulating water pipe (6), water circulating pump (17), drip tray (14) and radiator fan (2) composition, wherein, going along with sb. to guard him wall body is cylindrical structure, go along with sb. to guard him on wall body and have air vent (22) or mistake air holes (23), the interior space of going along with sb. to guard him wall body is formed pulls out wind passage (VIII), hydroecium (III) and spraying cooling room (IV), pull out wind passage (VIII), hydroecium (III) and spraying cooling room (IV) are arranged in order from top to bottom, there is dividing plate (27) pulling out between wind passage (VIII) and hydroecium (III) hydroecium, shower plate (5) is had between hydroecium (III) and spraying cooling room (IV), shower plate (5) distributes spray apertures, hydroecium (III) is communicated to spraying cooling room (IV) by spray apertures, tube bank (4) of ventilating is applied in shower plate (5) and dividing plate (27) through hydroecium (III), and the interior space of tube bank (4) of ventilating forms ventilating hole channel (VII), and spraying cooling room (IV) is communicated to by ventilating hole channel (VII) and pulls out wind passage (VIII), condenser coil and circulating water pipe (6) are arranged in spraying cooling room (IV), the upper end of condenser coil picked out condenser by upper communicating pipe (24) from the top of spraying cooling room (IV), the lower end of condenser coil picks out condenser by lower communicating tube (12) from the bottom of spraying cooling room (IV), circulating water pipe (6) stands upright on the inner ring center of condenser coil, and the tube wall of circulating water pipe (6) distributes hole for water spraying, drip tray (14) is connected to the lower end of going along with sb. to guard him wall body, and the interior space of drip tray (14) forms collecting chamber (VI), water circulating pump (17) is arranged in collecting chamber (VI), and the water sucking mouth of water circulating pump (17) is in the bottom of collecting chamber (VI), and the delivery port of water circulating pump (17) is communicated to hydroecium (III) by circulating water pipe (6), radiator fan (2) is arranged on the upper end of pulling out wind passage (VIII), and the air-out direction of radiator fan (2) is by pulling out wind passage (VIII) outside condenser.
2. a kind of shower water air-cooled condenser according to claim 1, it is characterized in that pulling out wind passage (VIII) is open upwards or has top cover (30) on the top of pulling out wind passage (VIII), when pulling out wind passage (VIII) and being open upwards, radiator fan (2) is arranged on the upper end of going along with sb. to guard him wall body by blower tray (3); When there being top cover (30) on the top of pulling out wind passage (VIII), top cover (30) is dome structure, airduct (1) is had to pick out at the side of top cover (30), the interior space of airduct (1) forms air-inducing passage (I), radiator fan (2) is arranged in air-inducing passage (I), and radiator fan (2) is arranged on the tube wall of airduct (1) by blower tray (3).
3. a kind of shower water air-cooled condenser according to claim 1, it is characterized in that condenser coil is more than two groups, the condenser coil ecto-entad of more than two groups is successively nested, and the condenser coil of more than two groups is connected between upper communicating pipe (24) and lower communicating tube (12) with parallel way.
4. a kind of shower water air-cooled condenser according to claim 1, it is characterized in that in condenser, having upper supporting piece (25) and lower support element (19), going along with sb. to guard him wall body is inside and outside two layers, internal layer is gone along with sb. to guard him wall body and is gone along with sb. to guard him between wall body with skin and be connected by upper supporting piece (25) and lower support element (19), internal layer is gone along with sb. to guard him wall body and skin and is gone along with sb. to guard him between wall body and have living space, and internal layer goes along with sb. to guard him wall body and the skin space of going along with sb. to guard him between wall body formed wind passage (V); Go along with sb. to guard him at skin air vent (22) that wall body distributes, go along with sb. to guard him at internal layer air holes (23) that wall body distributed, air vent (22) with cross air holes (23) staggered positions mutually.
5. a kind of shower water air-cooled condenser according to claim 1, is characterized in that having spilling water interface (13) to pick out on the top of drip tray (14), has moisturizing interface (16) to access in drip tray (14) bottom.
6. a kind of shower water air-cooled condenser according to claim 1, is characterized in that there is foam removal louver (28) pulling out in wind passage (VIII).
7. a kind of shower water air-cooled condenser according to claim 1,2 or 6, is characterized in that there is air distribution plate (29) pulling out in wind passage (VIII).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410027962.6A CN103743265B (en) | 2014-01-22 | 2014-01-22 | Spray water-cooling condenser |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410027962.6A CN103743265B (en) | 2014-01-22 | 2014-01-22 | Spray water-cooling condenser |
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| CN103743265A CN103743265A (en) | 2014-04-23 |
| CN103743265B true CN103743265B (en) | 2015-05-20 |
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| CN201410027962.6A Active CN103743265B (en) | 2014-01-22 | 2014-01-22 | Spray water-cooling condenser |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595993A (en) * | 2015-01-27 | 2015-05-06 | 珠海格力电器股份有限公司 | Radiating net cover, air-conditioner outdoor unit and air-conditioner |
| CN104729325B (en) * | 2015-03-17 | 2016-08-24 | 江苏国信淮安燃气发电有限责任公司 | The efficient heat exchange water tank of water-bath stove heating system |
| IT201600077849A1 (en) * | 2016-07-25 | 2018-01-25 | Gruppo Cimbali Spa | Device for heating fluids continuously. |
| CN108162360B (en) * | 2017-12-26 | 2023-11-17 | 大连三垒科技有限公司 | Splash-proof structure suitable for spray water tank |
| CN109798782A (en) * | 2019-03-08 | 2019-05-24 | 珠海格力电器股份有限公司 | Evaporation cold group and its heat exchange structure, the condenser used |
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| CN86208952U (en) * | 1986-11-08 | 1988-07-27 | 鞍山市沙河茶炉厂 | High efficiency gas-water heat exchanger |
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| CN103743265A (en) | 2014-04-23 |
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Inventor after: Ge Fumin Inventor before: Zhou Kaigen |
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Effective date of registration: 20170627 Address after: 322118 No. 56 Keats Road, Hengdian electronic industry zone, Zhejiang, Dongyang Patentee after: Zhejiang Lvyu Refrigeration Fittings Co., Ltd. Address before: Zhejiang province Quzhou City Kecheng District 324000 Kaixuan Road No. 6 (WITHUB industrial design Industrial Park Building 2, room B-302) Patentee before: Quzhou Yunrui Industry Design Co., Ltd. |