CN109775790B - Open circulating water and closed circulating water series-parallel equipment - Google Patents
Open circulating water and closed circulating water series-parallel equipment Download PDFInfo
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- CN109775790B CN109775790B CN201910209469.9A CN201910209469A CN109775790B CN 109775790 B CN109775790 B CN 109775790B CN 201910209469 A CN201910209469 A CN 201910209469A CN 109775790 B CN109775790 B CN 109775790B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 126
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 42
- 238000001816 cooling Methods 0.000 claims abstract description 36
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 17
- 238000005507 spraying Methods 0.000 claims abstract description 14
- 238000012856 packing Methods 0.000 claims abstract description 8
- 239000008234 soft water Substances 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 5
- 238000007664 blowing Methods 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 6
- 239000007921 spray Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 238000012546 transfer Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000010865 sewage Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000007670 refining Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/138—Water desalination using renewable energy
- Y02A20/141—Wind power
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The embodiment of the invention discloses open circulating water and closed circulating water series-parallel equipment, which comprises a lower tower pool and a circulating water tower arranged at the upper part of the lower tower pool, wherein the circulating water tower comprises a frame, and the bottom of the frame is arranged in the lower tower pool; an inner wind deflector is arranged on the inner ring wall of the frame in a surrounding manner to form an up-down through channel structure, and a certain space is reserved between the bottom of the inner wind deflector and the inner wall of the bottom end of the lower water tank of the tower; the top of the frame is provided with an air duct which is communicated with the inner wind shield in a sealing way; a fan is arranged in the air duct; an outer wind guard is arranged on the outer periphery of the frame, and a space is reserved between the inner wall of the outer wind guard and the outer wall of the frame; the top of the outer wind shield is connected with the outer ring wall of the inner wind shield in a sealing way through a sealing plate, and the bottom of the outer wind shield is connected with the top of the pool wall of the lower tower pool in a sealing way; the inner wind shield is internally and sequentially horizontally provided with a spraying layer, a packing layer, a nitrogen layer, a first wet air cooling tube bundle and a second wet air cooling tube bundle from top to bottom, and a water collector is arranged between the outer wind shield and the inner wind shield.
Description
Technical Field
The embodiment of the invention relates to the technical field of circulating water, in particular to a series-parallel type device for open circulating water and closed circulating water.
Background
The circulating water field is an important energy-saving and water-saving device for oil refining chemical industry and coal chemical industry enterprises; at present, two widely accepted industrial circulating water modes are mainly adopted, one is an open circulating water technology, and the other is a closed circulating water technology. The traditional technology for starting circulating water has the defects that the circulating of the heat exchange water of a factory cannot be realized, and the sewage discharge amount is large; the loss of the floating zero water and the aerosol water is large. The conventional closed circulating water technology has the defects of huge power consumption, large occupied area and difficulty in lowering to the optimal temperature required by heat exchange of a factory.
Disclosure of Invention
Therefore, the embodiment of the invention provides open circulating water and closed circulating water series-parallel equipment, which solves the problems of large sewage discharge, large floating zero water, large gas mist water loss, large power consumption, poor temperature required by heat exchange and the like caused by independently using an open circulating water technology and a closed circulating water technology in the prior art.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
according to a first aspect of an embodiment of the invention, an open-type circulating water and closed-type circulating water series-parallel device comprises a lower tower water tank and a circulating water tower arranged at the upper part of the lower tower water tank, wherein the circulating water tower comprises a frame, and the bottom of the frame is arranged in the lower tower water tank; an inner wind deflector is arranged on the inner ring wall of the frame in a surrounding manner to form an up-down through channel structure, and a certain space is reserved between the bottom of the inner wind deflector and the inner wall of the bottom end of the lower water tank of the tower; the top of the frame is provided with an air duct which is communicated with the inner wind shield in a sealing way; a fan is arranged in the air duct; an outer wind baffle is arranged on the outer periphery of the frame, and a space is reserved between the inner wall of the outer wind baffle and the outer wall of the frame; the top of the outer wind shield is in sealing connection with the outer ring wall of the inner wind shield through a sealing plate, and the bottom of the outer wind shield is in sealing connection with the top of the pool wall of the lower tower pool; the inner wind shield is internally and horizontally provided with a spraying layer, a packing layer, a nitrogen layer, a first wet air cooling tube bundle and a second wet air cooling tube bundle from top to bottom in sequence, and the first wet air cooling tube bundle is communicated with the second wet air cooling tube bundle through a connecting tube; the outside of the frame is respectively provided with a circulating water inlet pipe communicated with the spraying layer, a nitrogen inlet pipe communicated with the nitrogen layer, a heat exchange soft water inlet pipe communicated with the first wet air cooling pipe bundle and a heat exchange soft water outlet pipe communicated with the second wet air cooling pipe bundle; a water collector is arranged between the outer wind shield and the inner wind shield; one side of the bottom of the lower water tank of the tower is communicated with a circulating water outlet pipe.
Further, the distance between the bottom of the inner wind shield and the liquid level in the lower water tank of the tower is 2-2.5 meters.
Further, the fan adopts a running mode of blowing from top to bottom.
Further, the spraying layer comprises spraying pipes with two ends fixedly connected with the inner wall of the inner wind shield, and one ends of the spraying pipes are communicated with the circulating water inlet pipe.
Further, the packing layer comprises a grid plate fixedly connected with the inner ring wall of the inner wind shield.
Further, the nitrogen blanket comprises a coil fixedly connected with the inner ring wall of the inner wind shield; the outlet end of the coil pipe penetrates through the outer air baffle.
Further, the second wet air cooling tube bundle is in an annular structure.
Furthermore, the second wet air cooling tube bundle is horizontally arranged inside the inner wind deflector, and the outer wall ring of the second wet air cooling tube bundle is fixedly connected with the inner ring wall of the inner wind deflector.
Further, a water tray is horizontally arranged right below the inner wind shield, two ends of the water tray are respectively connected with inner walls at two ends of the frame, and the water tray is positioned above the liquid level of the pool below the tower.
The embodiment of the invention has the following advantages: the fan adopts a blowing mode from top to bottom, so that the wind can be restrained, the mass and heat transfer can be better participated, and the air inlet from the top of the tower is cleaner; the external wind guard and the water collector can reduce the loss of water vapor; the air separation air compression devices are arranged in large-scale oil refining, chemical industry and coal chemical industry enterprises, and the produced low-pressure nitrogen is only about 10 degrees before entering a production pipe network, and the cold quantity is not utilized, so that the temperature of inlet air and spray circulating water can be reduced through the nitrogen coil pipe, and the resource utilization rate is improved; meanwhile, the air can be saturated by absorbing less water at a lower temperature, so that the aim of saving water is fulfilled; meanwhile, the wet air cooler is arranged in the circulating water tower, so that the soft water circulation of a part of a factory can be realized under the conditions of not increasing the occupied area and only slightly increasing the electricity consumption, and the effects of saving fresh water supply and reducing sewage discharge are realized; after the mixing temperature of the air and the water is reduced, forced evaporation is easy to form on the surface of the wet air cooler, and compared with the traditional closed circulating water air cooler, the heat transfer efficiency of the wet air cooling tube bundle is greatly improved; the water tray can be maintained by stopping water from tower to tower after the circulating water field runs for a period of time, salt precipitated on the wet air cooling tube bundle is cleaned, cleaning residues are connected into the water tray and then pumped out by a special pipeline, so that the pollution of circulating water in a lower water tank is reduced, and concentrated water corrosion process pipelines and equipment are avoided to the greatest extent.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.
The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the invention, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present invention, should fall within the ambit of the technical disclosure.
Fig. 1 is a schematic diagram of the overall structure of an open-cycle water and closed-cycle water series-parallel device according to an embodiment of the present invention.
In the figure: the under-tower water tank 1, the frame 2, the inner wind shield 5, the wind barrel 3, the fan 4, the outer wind shield 14, the sealing plate 15, the spraying layer 6, the packing layer 7, the nitrogen layer 8, the first wet air cooling tube bundle 9, the second wet air cooling tube bundle 10, the circulating water inlet tube 13, the nitrogen inlet tube 16 communicated with the nitrogen layer 8, the heat exchange soft water inlet tube 11, the heat exchange soft water outlet tube 12, the water receiver 18, the circulating water outlet tube 17 and the water tray 19.
Detailed Description
Other advantages and advantages of the present invention will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment of the invention provides an open circulating water and closed circulating water series-parallel type device, referring to FIG. 1, comprising a lower tower pool 1 and a circulating water tower arranged at the upper part of the lower tower pool 1, wherein the circulating water tower comprises a frame 2, and the bottom of the frame 2 is arranged in the lower tower pool 1; an inner wind deflector 5 is arranged on the inner ring wall of the frame 2 to form an up-down through channel structure, and a certain space is reserved between the bottom of the inner wind deflector 5 and the inner wall of the bottom end of the tower lower pool 1; the top of the frame 2 is provided with an air duct 3 which is communicated with the inner wind shield 5 in a sealing way; a fan 4 is arranged in the air duct 3; the outer periphery of the frame 2 is provided with an outer wind baffle 14, and a space is reserved between the inner wall of the outer wind baffle 14 and the outer wall of the frame 2; the top of the outer wind shield 14 is in sealing connection with the outer ring wall of the inner wind shield 5 through a sealing plate 15, and the bottom of the outer wind shield 14 is in sealing connection with the top of the pool wall of the tower lower pool 1; the inner wind shield 5 is internally and horizontally provided with a spraying layer 6, a packing layer 7, a nitrogen layer 8, a first wet air cooling tube bundle 9 and a second wet air cooling tube bundle 10 from top to bottom in sequence, and the first wet air cooling tube bundle 9 is communicated with the second wet air cooling tube bundle 10 through a connecting tube; the outside of the frame 2 is respectively provided with a circulating water inlet pipe 13 communicated with the spray layer 6, a nitrogen inlet pipe 16 communicated with the nitrogen layer 8, a heat exchange soft water inlet pipe 11 communicated with the first wet air cooling pipe bundle 9 and a heat exchange soft water outlet pipe 12 communicated with the second wet air cooling pipe bundle 10; a water collector 18 is arranged between the outer wind shield 14 and the inner wind shield 5; one side of the bottom of the tower lower pool 1 is communicated with a circulating water outlet pipe 17.
Preferably, the distance between the bottom of the inner wind shield 5 and the liquid level in the lower tower pool 1 is 2-2.5 meters; the fan 4 adopts a running mode of blowing from top to bottom; the spray layer 6 comprises a spray pipe with two ends fixedly connected with the inner wall of the inner wind shield 5, and one end of the spray pipe is communicated with the circulating water inlet pipe 13; the packing layer 7 comprises a grid plate fixedly connected with the inner ring wall of the inner wind shield 5; the nitrogen layer 8 comprises a coil fixedly connected with the inner ring wall of the inner wind deflector 5; the outlet end of the coil pipe penetrates through the outer air baffle 14; the second wet air cooling tube bundle 10 is in an annular structure, the second wet air cooling tube bundle 10 is horizontally arranged inside the inner wind deflector 5, and an outer wall ring of the second wet air cooling tube bundle 10 is fixedly connected with an inner ring wall of the inner wind deflector 5, so that the heat exchange area is increased, the heat exchange efficiency is improved, and the energy waste is reduced; a water tray 19 is horizontally arranged right below the inner wind deflector 5, and two ends of the water tray 19 are respectively connected with the inner walls of two ends of the frame 2; the water tray 19 is above the surface of the sump below the tower.
The air blower is from top to bottom, so that the air is restrained, the air is better involved in mass and heat transfer, and the air inlet from the top of the tower is cleaner; the external wind guard and the water collector can reduce the loss of water vapor; the air separation air compression device is arranged in large-scale oil refining, chemical industry and coal chemical industry enterprises, the produced low-pressure nitrogen is only 10 ℃ before the production of the official network, and the cold energy is not utilized, so that the temperature of inlet air and the temperature of spraying circulating water can be reduced through the nitrogen coil pipe, and the resource utilization rate is improved; meanwhile, the air can be saturated by absorbing less water at a lower temperature, so that the aim of saving water is fulfilled; meanwhile, the wet air cooler can realize a part of soft water circulation without increasing occupied area and a small amount of electricity consumption, thereby saving fresh water supply and reducing sewage discharge; after the mixing temperature of the air and the water is reduced, forced evaporation is easy to form on the surface of the wet air cooler, and the heat transfer efficiency of the wet air cooler tube bundle is greatly improved; the water tray can be maintained by stopping water from tower to tower after the circulating water field runs for a period of time, salt precipitated on the wet air cooling tube bundle is cleaned, residues are cleaned, the residues are connected into the water tray, and the residues are extracted through a special pipeline, so that the pollution of circulating water in a pool below the tower is reduced.
The process flow is as follows:
the environmental air is blown into the tower through the fan, and after fully mixed with circulating water sprayed out by the spray pipe at the top of the tower for mass transfer in the packing layer, the circulating water is cooled and cooled through the low-temperature nitrogen coil, and the air-water mixture continuously flows downwards and continuously exchanges heat with the second wet air-cooling tube bundle, so that the circulating water and the circulating soft water in the wet air-cooling tube bundle are both close to the ambient wet bulb temperature.
Then, circulating water flows into a pool below the tower and is pumped back to the process device through a circulating water pump; the heat exchange soft water in the wet air cooling tube bundle is pumped back to the corresponding process device through a soft water circulating pump; the air rises between the inner and outer air blocking walls, and is reused or discharged after passing through the water collector.
The outer wind-blocking wall is an aluminum alloy profiled plate structure, so that on one hand, the strength of water blocking and wind blocking is improved, on the other hand, the contact area with water vapor is increased, the condensation reflux of saturated water vapor is promoted, and the aim of reducing the loss of water vapor is fulfilled; and a maintenance channel communicated with the outside is arranged above the water receiver, so that the manual maintenance is facilitated.
While the invention has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the invention and are intended to be within the scope of the invention as claimed.
Claims (6)
1. The open circulating water and closed circulating water series-parallel connection type equipment comprises a lower tower water tank (1) and a circulating water tower arranged at the upper part of the lower tower water tank (1), and is characterized in that the circulating water tower comprises a frame (2), and the bottom of the frame (2) is arranged in the lower tower water tank (1); an inner wind deflector (5) is arranged on the inner ring wall of the frame (2) in a surrounding manner to form an up-down through channel structure, and a certain space is reserved between the bottom of the inner wind deflector (5) and the inner wall of the bottom end of the tower lower water tank (1); an air duct (3) which is communicated with the inner wind shield (5) in a sealing way is arranged at the top of the frame (2); a fan (4) is arranged in the air duct (3), and the fan (4) adopts a running mode of blowing from top to bottom;
an outer wind baffle (14) is arranged on the outer periphery of the frame (2), and a space is reserved between the inner wall of the outer wind baffle (14) and the outer wall of the frame (2); the top of the outer wind shield (14) is in sealing connection with the outer ring wall of the inner wind shield (5) through a sealing plate (15), and the bottom of the outer wind shield (14) is in sealing connection with the top of the pool wall of the tower lower pool (1);
the inner wind shield (5) is internally and horizontally provided with a spraying layer (6), a packing layer (7), a nitrogen layer (8), a first wet air cooling tube bundle (9) and a second wet air cooling tube bundle (10) from top to bottom in sequence, and the first wet air cooling tube bundle (9) is communicated with the second wet air cooling tube bundle (10) through a connecting tube; the outside of the frame (2) is respectively provided with a circulating water inlet pipe (13) communicated with the spraying layer (6), a nitrogen inlet pipe (16) communicated with the nitrogen layer (8), a heat exchange soft water inlet pipe (11) communicated with the first wet type air cooling pipe bundle (9) and a heat exchange soft water outlet pipe (12) communicated with the second wet type air cooling pipe bundle (10);
a water collector (18) is arranged between the outer wind shield (14) and the inner wind shield (5); one side of the bottom of the tower lower water tank (1) is communicated with a circulating water outlet pipe (17);
the nitrogen layer (8) comprises a coil fixedly connected with the inner ring wall of the inner wind deflector (5); the outlet end of the coil pipe penetrates through the outer air baffle (14);
a water tray (19) is horizontally arranged right below the inner wind shield (5), and two ends of the water tray (19) are respectively connected with the inner walls of two ends of the frame (2); the water tray (19) is positioned above the liquid level of the water pool below the tower.
2. An open-cycle water and closed-cycle water series-parallel device according to claim 1, characterized in that the distance between the bottom of the inner wind deflector (5) and the liquid level inside the sub-tower pool (1) is 2-2.5 meters.
3. An open-type circulating water and closed-type circulating water series-parallel connection type device according to claim 1, wherein the spraying layer (6) comprises a spraying pipe with two ends fixedly connected with the inner wall of the inner wind shield (5), and one end of the spraying pipe is communicated with the circulating water inlet pipe (13).
4. An open-and closed-cycle water series-parallel device according to claim 1, characterized in that the filler layer (7) comprises a grid plate fixedly connected with the inner ring wall of the inner wind deflector (5).
5. An open-loop and closed-loop circulating water series-parallel apparatus according to claim 1, characterized in that the second wet air-cooled tube bundle (10) has a ring-like structure.
6. The open-type circulating water and closed-type circulating water series-parallel connection type device according to claim 1, wherein the second wet-type air cooling tube bundle (10) is horizontally arranged inside the inner wind deflector (5), and an outer wall ring of the second wet-type air cooling tube bundle (10) is fixedly connected with an inner ring wall of the inner wind deflector (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910209469.9A CN109775790B (en) | 2019-03-19 | 2019-03-19 | Open circulating water and closed circulating water series-parallel equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910209469.9A CN109775790B (en) | 2019-03-19 | 2019-03-19 | Open circulating water and closed circulating water series-parallel equipment |
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| Publication Number | Publication Date |
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| CN109775790A CN109775790A (en) | 2019-05-21 |
| CN109775790B true CN109775790B (en) | 2024-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910209469.9A Active CN109775790B (en) | 2019-03-19 | 2019-03-19 | Open circulating water and closed circulating water series-parallel equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112028293A (en) * | 2019-06-04 | 2020-12-04 | 江苏迅拓机械有限公司 | Novel shield constructs quick-witted circulating water supply system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007121670A1 (en) * | 2006-04-21 | 2007-11-01 | Tsinghua University | An environment protecting and water saving cooling tower |
| CN201327309Y (en) * | 2008-10-15 | 2009-10-14 | 上海汽车资产经营有限公司 | Open and close combined type multi-source double-effect energy tower |
| CN101776401A (en) * | 2010-01-29 | 2010-07-14 | 华中科技大学 | Air-cooled steam condensing system with natural ventilation and direct water film evaporation |
| CN105066734A (en) * | 2015-07-16 | 2015-11-18 | 东华大学 | Combined cooling tower |
| CN207065994U (en) * | 2017-07-28 | 2018-03-02 | 河南开元空分集团有限公司 | Comprehensively utilize the recirculated water energy-saving and cooling device of air separation unit cold energy |
| CN209797527U (en) * | 2019-03-19 | 2019-12-17 | 上海玖矢企业管理有限公司 | Open circulating water and closed circulating water series-parallel type equipment |
-
2019
- 2019-03-19 CN CN201910209469.9A patent/CN109775790B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007121670A1 (en) * | 2006-04-21 | 2007-11-01 | Tsinghua University | An environment protecting and water saving cooling tower |
| CN201327309Y (en) * | 2008-10-15 | 2009-10-14 | 上海汽车资产经营有限公司 | Open and close combined type multi-source double-effect energy tower |
| CN101776401A (en) * | 2010-01-29 | 2010-07-14 | 华中科技大学 | Air-cooled steam condensing system with natural ventilation and direct water film evaporation |
| CN105066734A (en) * | 2015-07-16 | 2015-11-18 | 东华大学 | Combined cooling tower |
| CN207065994U (en) * | 2017-07-28 | 2018-03-02 | 河南开元空分集团有限公司 | Comprehensively utilize the recirculated water energy-saving and cooling device of air separation unit cold energy |
| CN209797527U (en) * | 2019-03-19 | 2019-12-17 | 上海玖矢企业管理有限公司 | Open circulating water and closed circulating water series-parallel type equipment |
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| CN109775790A (en) | 2019-05-21 |
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Inventor after: Tang Getianyu Inventor after: Zhang Hongbo Inventor after: Zhang Guomin Inventor before: Ren Xiaohang Inventor before: Zhang Guomin Inventor before: Zhang Hongbo |
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