CN113237357A - Natural cooling ventilation tower based on condensing heat exchange and efficiently recovering cooling water - Google Patents
Natural cooling ventilation tower based on condensing heat exchange and efficiently recovering cooling water Download PDFInfo
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- CN113237357A CN113237357A CN202110630276.8A CN202110630276A CN113237357A CN 113237357 A CN113237357 A CN 113237357A CN 202110630276 A CN202110630276 A CN 202110630276A CN 113237357 A CN113237357 A CN 113237357A
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- heat exchange
- cooling
- water
- tower
- cooling tower
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
- F28C1/16—Arrangements for preventing condensation, precipitation or mist formation, outside the cooler
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
- F28B1/06—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using air or other gas as the cooling medium
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a natural cooling ventilation tower for efficiently recovering cooling water based on condensation heat exchange, which comprises: a cooling tower having an upper opening and a lower opening; the sealing cover is arranged on the upper opening in a covering manner; one end of the heat exchange pipe penetrates through the sealing cover and is communicated with the interior of the cooling tower, and the other end of the heat exchange pipe is communicated with the collecting tank or corresponds to the collecting tank in position; the condenser is arranged adjacent to the cooling tower, the water outlet end of the condenser is communicated with a water outlet pipe, and the tail end of the water outlet pipe extends into the cooling tower and is arranged close to the lower opening; the tail end of the water outlet is provided with a spraying device, the water inlet end of the spraying device is communicated with a water inlet pipe, and the tail end of the water inlet pipe is communicated with the collecting tank. The high-temperature high-humidity gas generated by the cooling tower is guided into the heat exchange tube, and the external normal-temperature air is used as a cold source to condense and exchange the high-temperature high-humidity gas in the heat exchange tube to form condensed water, and then the condensed water sequentially enters the collecting pool and the condenser to complete the recovery and cyclic utilization of the evaporated water in the high-temperature high-humidity gas.
Description
Technical Field
The invention relates to the technical field of cooling tower heat exchange, in particular to a natural cooling ventilation tower for efficiently recovering cooling water based on condensation heat exchange.
Background
The cooling tower is a common cooling device in industry, for example, to realize the recycling of exhaust steam generated by a thermal power plant, sensible heat in the exhaust steam needs to be taken away through a condenser, and high-temperature cooling water in the condenser is cooled and recycled through the cooling tower to realize the recycling of the cooling water.
The natural ventilation counter-flow wet cooling tower is mainly used in thermal power plants due to the characteristics of low operation cost, stable performance and easy maintenance and protection, and the existing cooling tower consumes huge water, for example, a typical thermal power generating unit of 2 × 300MW, the loss of the cooling tower accounts for 61.9% of the total water consumption of the whole unit, wherein the loss of evaporated water for cooling circulating water accounts for 57% of the total water consumption of the whole unit, so that the water loss of evaporation is far higher than the loss of blowing and pollution discharge in high-temperature and high-humidity gas discharged by the cooling tower; however, most of the currently proposed cooling tower water saving methods are based on wind blowing loss and pollution discharge loss, the research on recovery of evaporation loss is relatively few, and meanwhile, the evaporation water loss is also the largest aspect of water consumption of a thermal power plant.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the above-mentioned problems in the prior art.
Therefore, an object of the present invention is to provide a natural cooling ventilation tower for efficiently recovering cooling water based on condensation heat exchange, in which a support frame and a collection tank are disposed at the bottom of a cooling tower, the natural cooling ventilation tower comprising:
a cooling tower having a cylindrical structure with an upper opening and a lower opening;
the sealing cover is arranged on the upper opening in a covering manner;
one end of the heat exchange pipe penetrates through the sealing cover and is communicated with the interior of the cooling tower, and the other end of the heat exchange pipe is communicated with the collecting tank or corresponds to the collecting tank in position;
the condenser is arranged adjacent to the cooling tower, the water outlet end of the condenser is communicated with a water outlet pipe, and the tail end of the water outlet pipe extends into the cooling tower and is arranged close to the lower opening; the tail end of delivery port is provided with spray set, and its end intercommunication of intaking has the inlet tube, the tail end of inlet tube with the collecting pit intercommunication.
The invention has the beneficial effects that:
the upper opening of the cooling tower is sealed, high-temperature and high-humidity gas generated by the cooling tower is guided to the heat exchange tube, external normal-temperature air is used as a cold source to condense and exchange the high-temperature and high-humidity gas in the heat exchange tube to form condensed water, the condensed water sequentially enters the collecting pool and the condenser to complete recovery and cyclic utilization of the evaporated water in the high-temperature and high-humidity gas, and the amount of water lost by evaporation in the high-temperature and high-humidity gas discharged by the cooling tower is greatly reduced.
Further, still include the water pump, the water pump set up in on the inlet tube.
Further, the heat exchange tube is spirally or spirally arranged on the outer surface of the cooling tower in a winding manner.
The heat exchange tube is arranged on the outer surface of the cooling tower, the cooling tower can be directly utilized as a supporting carrier, a structure for fixing the heat exchange tube is not required to be additionally arranged, in addition, the heat exchange tube is arranged on the outer surface of the cooling tower, the distance between the heat exchange tube and the collecting pool can be maximally reduced, the length of the heat exchange tube can be reduced as far as possible on the premise of ensuring the heat exchange efficiency, and the application cost is reduced.
The spiral or winding arrangement of the heat exchange tube is used for prolonging the heat exchange time of high-temperature and high-humidity gas in the heat exchange tube and improving the heat exchange efficiency.
Preferably, the top end of the cooling tower is inwardly constricted to form the upper opening. The upper opening is reduced, namely, the accommodating space at the top of the cooling tower is reduced, and a large amount of high-temperature high-humidity gas is prevented from being accumulated at the top of the cooling tower and not easy to flow into the heat exchange pipe.
Preferably, the heat exchange tube is one or more of a corrugated tube, a spiral groove tube and a condensation heat transfer tube, and other materials with better condensation heat transfer effect can also be adopted.
Preferably, the heat exchanger further comprises an induced draft fan, and the induced draft fan is arranged at one end of the heat exchange tube. High-temperature and high-humidity gas can be efficiently introduced into the heat exchange tube through the induced draft fan.
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 is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural view;
FIG. 2 is a schematic top view;
the method comprises the following steps of 1-outside normal-temperature air, 2-high-temperature high-humidity gas, 3-sealing covers, 4-heat exchange tubes, 5-collecting ponds, 6-spraying devices, 7-condensers, 8-water pumps and 9-cooling towers.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
As shown in fig. 1-2, an embodiment of the present invention discloses a natural cooling ventilation tower for efficiently recovering cooling water based on condensation heat exchange, wherein a support frame and a collection pool 5 are arranged at the bottom of a cooling tower 9, and the natural cooling ventilation tower comprises: a cooling tower 9, wherein the cooling tower 9 is of a cylindrical structure with an upper opening and a lower opening; a sealing cover 3, wherein the sealing cover 3 is covered on the upper opening; one end of the heat exchange tube 4 penetrates through the sealing cover 3 and is communicated with the interior of the cooling tower 9, and the other end of the heat exchange tube 4 is communicated with the collecting pool 5 or corresponds to the position of the collecting pool; the condenser 7 is arranged adjacent to the cooling tower 9, the water outlet end of the condenser 7 is communicated with a water outlet pipe, and the tail end of the water outlet pipe extends into the cooling tower 9 and is arranged close to the lower opening; the tail end of the water outlet is provided with a spraying device 6, the water inlet end of the spraying device is communicated with a water inlet pipe, and the tail end of the water inlet pipe is communicated with a collecting tank 5.
In this embodiment, the water pump 8 is further included, and the water pump 8 is arranged on the water inlet pipe.
In this embodiment, the heat exchange tubes 4 are arranged in a serpentine shape closely to the outer surface of the cooling tower 9.
In this embodiment, the top end of the cooling tower 9 is inwardly constricted to form an upper opening.
In some embodiments, the heat exchange tube 4 is one or more of a corrugated tube, a spiral groove tube, and a condensation heat transfer tube, and other materials with better condensation heat transfer effect can also be used.
In some embodiments, the heat exchanger further comprises an induced draft fan, and the induced draft fan is arranged at one end of the heat exchange tube 4.
The specific working process is as follows:
as shown in fig. 1, the operation of the cooling tower 9 includes cooling water circulation and air circulation, wherein the cooling water circulation process is as follows:
high-temperature cooling water in a condenser 7 (for a thermal power plant) flows into a cooling tower 9 through a water outlet pipe and is sprayed through a spraying device 6, external normal-temperature air 1 flows into a lower opening of the cooling tower 9 from a support frame and is fully contacted with the high-temperature cooling water, one part of the high-temperature cooling water directly falls into a collecting pool 5 below after being cooled, the other part of the high-temperature cooling water forms high-temperature high-humidity gas 2 and rises to an upper opening of the cooling tower 9, the high-temperature high-humidity gas further flows into a heat exchange pipe 4 to be condensed into condensed water and then flows into the collecting pool 5, and the water in the collecting pool 5 is sent into a water inlet pipe of the condenser 7 through a water pump 8 to complete water circulation.
The air circulation process is as follows:
outside normal temperature air 1 enters the cooling tower 9 from the lower opening to exchange heat with high temperature cooling water to form high temperature and high humidity gas 2, and forms condensed water and air after exchanging heat through the heat exchange tube 4, and the air is discharged to the outside from the other end of the heat exchange tube 4 to complete air circulation.
In some embodiments, the cooling tower 9 may be placed in an environment with better air fluidity to improve the cooling heat exchange efficiency.
The invention provides a natural cooling tower for efficiently recovering evaporated water based on condensation heat exchange, which is characterized in that the upper opening of the cooling tower is sealed, high-temperature and high-humidity gas generated by the cooling tower is guided into a heat exchange pipe, and the high-temperature and high-humidity gas in the heat exchange pipe is condensed and heat exchanged by using outside normal-temperature air as a cold source to form condensed water, so that the condensed water sequentially enters a collecting pool and a condenser to complete recovery and cyclic utilization of the evaporated water in the high-temperature and high-humidity gas, and the water loss caused by evaporation in the high-temperature and high-humidity gas discharged by the cooling tower is greatly reduced.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (5)
1. The utility model provides a natural cooling ventilation tower based on high-efficient cooling water of retrieving of heat transfer condenses, cooling tower (9) bottom is provided with support frame and collecting pit (5), its characterized in that includes:
a cooling tower (9), wherein the cooling tower (9) is of a cylindrical structure with an upper opening and a lower opening;
the sealing cover (3), the said sealing cover (3) is covered and set up on the said upper opening;
one end of the heat exchange tube (4) penetrates through the sealing cover (3) and is communicated with the inside of the cooling tower (9), and the other end of the heat exchange tube (4) is communicated with the collecting pool (5) or corresponds to the collecting pool in position;
the condenser (7) is arranged adjacent to the cooling tower (9), the water outlet end of the condenser (7) is communicated with a water outlet pipe, the tail end of the water outlet pipe extends into the cooling tower (9) and is arranged close to the lower opening, and the tail end of the water outlet is provided with a spraying device (6); the water inlet end of the water inlet pipe is communicated with a water inlet pipe, and the tail end of the water inlet pipe is communicated with the collecting tank (5).
2. The natural cooling ventilation tower for efficiently recovering cooling water based on condensation heat exchange according to claim 1, further comprising a water pump (8), wherein the water pump (8) is arranged on the water inlet pipe.
3. The natural cooling ventilation tower for efficiently recovering cooling water based on condensation heat exchange according to claim 1, wherein the heat exchange pipe (4) is spirally or meanderingly disposed on the outer surface of the cooling tower (9).
4. The natural cooling ventilation tower for efficiently recovering cooling water based on condensation heat exchange according to claim 1, wherein the top end of the cooling tower (9) is inwardly contracted to form the upper opening.
5. The natural cooling ventilation tower for efficiently recovering cooling water based on condensation heat exchange according to claim 1, wherein the heat exchange pipe (4) is one or more of a corrugated pipe, a spiral groove pipe and a condensation heat transfer pipe.
The natural cooling ventilation tower for efficiently recovering cooling water based on condensation heat exchange as claimed in claim 1, further comprising an induced draft fan, wherein the induced draft fan is arranged at one end of the heat exchange tube (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110630276.8A CN113237357A (en) | 2021-06-07 | 2021-06-07 | Natural cooling ventilation tower based on condensing heat exchange and efficiently recovering cooling water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110630276.8A CN113237357A (en) | 2021-06-07 | 2021-06-07 | Natural cooling ventilation tower based on condensing heat exchange and efficiently recovering cooling water |
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| CN113237357A true CN113237357A (en) | 2021-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110630276.8A Pending CN113237357A (en) | 2021-06-07 | 2021-06-07 | Natural cooling ventilation tower based on condensing heat exchange and efficiently recovering cooling water |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110011107A1 (en) * | 2008-03-28 | 2011-01-20 | Creative Water Technology Ltd. | Device and method for utilising surplus cooling of water in a cooling tower |
| RU2472086C1 (en) * | 2011-11-10 | 2013-01-10 | Олег Савельевич Кочетов | Thermal power plant |
| CN203216312U (en) * | 2013-04-17 | 2013-09-25 | 石福军 | Cold source loss recycling device for thermal power plant |
| CN204255129U (en) * | 2014-07-04 | 2015-04-08 | 深圳市裕康达机电设备有限公司 | A kind of cooling tower |
| CN104677174A (en) * | 2015-03-16 | 2015-06-03 | 芜湖凯博实业股份有限公司 | Cooling tower water collecting device and control method thereof |
| CN204612523U (en) * | 2015-01-28 | 2015-09-02 | 九江德福电子材料有限公司 | A kind of cooling tower evaporation water retracting device |
| CN206113687U (en) * | 2016-08-30 | 2017-04-19 | 安徽志诚节能科技有限公司 | Cooling tower steam secondary recycle system |
| CN207528090U (en) * | 2017-11-07 | 2018-06-22 | 长沙瑞泽能源科技股份有限公司 | water-saving cooling tower |
| CN213238523U (en) * | 2020-08-26 | 2021-05-18 | 天津滨海天赋成金属结构有限公司 | Cooling tower capable of recovering evaporated water |
-
2021
- 2021-06-07 CN CN202110630276.8A patent/CN113237357A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110011107A1 (en) * | 2008-03-28 | 2011-01-20 | Creative Water Technology Ltd. | Device and method for utilising surplus cooling of water in a cooling tower |
| RU2472086C1 (en) * | 2011-11-10 | 2013-01-10 | Олег Савельевич Кочетов | Thermal power plant |
| CN203216312U (en) * | 2013-04-17 | 2013-09-25 | 石福军 | Cold source loss recycling device for thermal power plant |
| CN204255129U (en) * | 2014-07-04 | 2015-04-08 | 深圳市裕康达机电设备有限公司 | A kind of cooling tower |
| CN204612523U (en) * | 2015-01-28 | 2015-09-02 | 九江德福电子材料有限公司 | A kind of cooling tower evaporation water retracting device |
| CN104677174A (en) * | 2015-03-16 | 2015-06-03 | 芜湖凯博实业股份有限公司 | Cooling tower water collecting device and control method thereof |
| CN206113687U (en) * | 2016-08-30 | 2017-04-19 | 安徽志诚节能科技有限公司 | Cooling tower steam secondary recycle system |
| CN207528090U (en) * | 2017-11-07 | 2018-06-22 | 长沙瑞泽能源科技股份有限公司 | water-saving cooling tower |
| CN213238523U (en) * | 2020-08-26 | 2021-05-18 | 天津滨海天赋成金属结构有限公司 | Cooling tower capable of recovering evaporated water |
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