CN109631615B - Cooling tower with water mist treatment device - Google Patents
Cooling tower with water mist treatment device Download PDFInfo
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- CN109631615B CN109631615B CN201811514210.7A CN201811514210A CN109631615B CN 109631615 B CN109631615 B CN 109631615B CN 201811514210 A CN201811514210 A CN 201811514210A CN 109631615 B CN109631615 B CN 109631615B
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- Prior art keywords
- demisting
- water
- water mist
- treatment device
- mist treatment
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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
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
- F28F25/02—Component parts of trickle coolers for distributing, circulating, and accumulating liquid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
- F28F25/10—Component parts of trickle coolers for feeding gas or vapour
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
- F28F27/003—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus specially adapted for cooling towers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides a cooling tower with a water mist treatment device, which can comprehensively function in multiple aspects and improve the water mist removal efficiency, a first demisting device and a second demisting device which are arranged in a crossed manner can reasonably and fully utilize the limited space in the tower and are matched with a conical semi-conical arrangement, compared with the traditional S-shaped water removal plate or a wave-shaped water removal device, the heat exchange area is enlarged, the heat exchange can be enhanced, the water mist removal effect is enhanced, the second demisting device positioned in the center of a tower body is communicated with each other vertically through a circulating main pipe, and the cold quantity of fluid can be increased through the parallel design. The curb plate defogging device of setting in both sides can play and carry out abundant heat transfer's effect to near gas of tower body wall, cooperates its grid shape, corresponds the setting with the fan in the outside, and the free adjustment switches two kinds of modes of defogging and tower body heat transfer. The cooling liquid tank and the circulating water tank as well as the upper and lower water pipes can alternately use cold sources, so that water sources are saved, and the intelligent temperature control for demisting is realized by adjusting in real time according to the temperature requirement.
Description
Technical Field
The invention relates to the field of cooling towers, in particular to a cooling tower with a water mist treatment device.
Background
Cooling tower among the prior art, steam after the heat transfer is by the lower supreme discharge process, generally need be through receiving water installation' S absorption and condensation, become the comdenstion water with unnecessary steam, thereby reduce the discharge of steam, reduce cooling tower water and thermal waste, and water smoke processing apparatus among the prior art, generally can take ripple or S-shaped water trap or other modes to remove the water, and because the restriction of the heat transfer area of water trap and circulation route causes water smoke to remove the effect not ideal among the prior art, usually behind water trap, still a very big part steam directly discharges still, efficiency remains to be improved.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the cooling tower with the water mist treatment device, which can comprehensively act in multiple aspects and improve the water mist removing efficiency.
A cooling tower with a water mist treatment device comprises a tower body, a main fan, an air inlet, a main air outlet, filler, a spraying system, the water mist treatment device, a pump, a water tank, an auxiliary fan, an auxiliary air outlet, a detection system, a controller and a water pan; the spraying system is provided with a plurality of spraying water distribution devices, and a plurality of spraying heads are arranged;
the water mist treatment device is arranged above the spraying system, and the air inlet is arranged between the filler and the water tank;
the water mist treatment device comprises a plurality of first demisting devices and second demisting devices which are arranged in a crossed mode, the outer sides of the first demisting devices are connected with the inner wall of the tower body, spiral channels are arranged in the first demisting devices, and the spiral channels of the adjacent first demisting devices are communicated; a channel fluid inlet of the first demisting device is arranged on one side of the first demisting device, and a snake-shaped reciprocating return channel extends in the second demisting device along the radial direction of the second demisting device; the snake-shaped reciprocating return channel of the adjacent second demisting device is communicated with the circulating main pipe; the water mist treatment device also comprises a side plate demisting device which is arranged at the auxiliary air outlets at the two sides of the tower body;
furthermore, the channel fluid outlet of the first demister is arranged at the other side of the first demister corresponding to the fluid inlet, and the spiral channels of the adjacent first demisting devices are communicated through the channels in the side plate demister arranged between the adjacent first demisting devices.
Further, curb plate defogging device is grid plate-like, and the grid plate inner chamber sets up the circuitous snakelike passageway of turning back, and wherein, every snakelike passageway corresponds the clearance position of grid plate.
Further, the first demisting device is in a semi-conical shape, and the second demisting device is in a conical shape.
Furthermore, the main air outlet is arranged at the top of the tower body, and the auxiliary air outlets are arranged at two sides of the tower body;
furthermore, the circulating main pipe comprises a water feeding pipe and a water discharging pipe, the inlet end of a fluid channel of the second demisting device is communicated with the water feeding pipe, the outlet end of the fluid channel of the second demisting device is communicated with the water discharging pipe, the water feeding pipe of the main pipe is communicated with the cooling liquid tank through a pipeline, the water discharging pipe is communicated with the circulating liquid tank through a pipeline, and the water tank is communicated with the cooling liquid tank through a.
Furthermore, a first driving device is arranged on a pipeline of the water feeding pipe communicated with the cooling liquid tank, a second driving device is arranged on a pipeline of the water discharging pipe communicated with the circulating liquid tank, the first driving device and the second driving device are connected with the controller, and the detection system comprises a temperature monitoring device, a pressure detection device and a detection system connected with the controller.
Further, the water pan is arranged on the lower sides of the first demisting device and the second demisting device.
Furthermore, notches are formed in two sides of the first conical demisting device and are used for enabling steam collected at the lower part of the first conical demisting device to rise to the space on the upper side for heat exchange; the lateral wall of first and second defogging device is provided with a plurality of sharp recesses that from top to bottom extend for water conservancy diversion condensate liquid.
Furthermore, a plate which can be opened and closed is arranged at the contact position of the tower body and the auxiliary fan and used for controlling the conversion between the heat exchange mode and the demisting mode.
When the tower body is mainly used for heat exchange circulation and the demisting is assisted, the fans on the two sides are opened to exhaust air, and when the tower body is mainly used for demisting, the fans on the two sides and the corresponding side plates are closed, so that a sufficient demisting effect is realized.
Compared with the prior art, the invention has the following beneficial effects:
the first of cross arrangement, second defogging device can be reasonable, and confined space in the make full use of tower cooperates the half toper setting of toper, compares in traditional S-shaped water trap or wave form water trap, enlarges the area of heat transfer, can strengthen the heat transfer, reinforcing dewatering fog effect. The turn-back channel formed in the first and second demisting devices supplies the steam to ascend and exchange heat, so that the heat exchange path is prolonged, and the spiral flow channel inside the first demisting device makes full use of the conical shell, so that the cold source flow channel is increased. The second demisting device positioned in the center of the tower body is communicated with the upper part and the lower part of the second demisting device through a circulating main pipe, and the cold quantity of the fluid can be increased through the parallel connection design.
The curb plate defogging device of setting in both sides can play and carry out abundant heat transfer's effect to near gas of tower body wall, cooperates its grid shape, corresponds the setting with the fan in the outside, and the free adjustment switches two kinds of modes of defogging and tower body heat transfer.
The cooling liquid tank and the circulating water tank as well as the upper and lower water pipes can alternately use cold sources, so that water sources are saved, and the intelligent temperature control for demisting is realized by adjusting in real time according to the temperature requirement.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a schematic structural diagram of the first defogging device.
Fig. 3 is a schematic structural diagram of the second defogging device.
Fig. 4 is a schematic view of a first demister fluid path.
Fig. 5 is a schematic view of a second demister fluid path.
FIG. 6 is a schematic view of a side plate defogging device.
In the figure: 1-a main fan, 2-an air inlet, 3-a filler, 4-a spraying system, 5-a water tank, 6-an auxiliary fan, 7-a water pan, 8-a first demisting device, 9-a second demisting device, 10-a spiral channel, 11-a snake-shaped reciprocating return channel, 12-a fluid inlet, 13-a linear groove, 14-a sewer pipe, 15-a water feeding pipe, 16-a circulating liquid tank, 17-a cooling liquid tank, 18-a side plate demisting device channel and 19-a side plate demisting device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A cooling tower with a water mist treatment device comprises a tower body, a main fan 1, an air inlet 2, a main air outlet, filler 3, a spraying system 4, the water mist treatment device, a pump, a water tank 5, an auxiliary fan 6, an auxiliary air outlet, a detection system, a controller and a water pan 7; wherein, the spraying system 4 is provided with a plurality of spraying water distribution devices, and a plurality of spraying heads; the water mist treatment device is arranged above the spraying system 4, and the air inlet 2 is arranged between the filler and the water tank; the water mist treatment device comprises a plurality of first demisting devices 8 and second demisting devices 9 which are arranged in a crossed manner, the outer sides of the first demisting devices 8 are connected with the inner wall of the tower body, spiral channels are arranged in the first demisting devices 8, and the spiral channels 10 of the adjacent first demisting devices 8 are communicated; the channel fluid inlet of the first demisting device 8 is arranged at one side of the first demisting device 8, and a snake-shaped reciprocating return channel 11 extends in the second demisting device 9 along the radial direction; the snake-shaped reciprocating return channel 11 of the adjacent second demisting device 9 is communicated with the circulating main pipe; the water mist treatment device also comprises a side plate demisting device 19, and the side plate demisting device 19 is arranged at auxiliary air outlets on two sides of the tower body; the fluid outlet of the first demisting device 8 is arranged at the other side of the first demisting device 8 corresponding to the fluid inlet, the spiral channels of the adjacent first demisting devices 8 are communicated through a channel 18 in the side plate demisting device arranged between the adjacent first demisting devices 8, the side plate demisting device 19 is in a grid plate shape, and the inner cavity of the grid plate is provided with a back-turning circuitous serpentine channel, wherein each serpentine channel corresponds to the gap position of the grid plate, the first demisting device 8 is in a semi-conical shape, the second demisting device 9 is in a conical shape, the main air outlet is arranged at the top of the tower body, and the auxiliary air outlets are arranged at two sides of the tower body; the circulating main pipe comprises an upper water pipe 15 and a lower water pipe 14, the inlet end of a fluid channel of the second demisting device 9 is communicated with the upper water pipe 15, the outlet end of the fluid channel is communicated with the lower water pipe 14, the upper water pipe 15 of the main pipe is communicated with a cooling liquid tank 17 through a pipeline, the lower water pipe 14 is communicated with the circulating liquid tank through a pipeline, and the cooling liquid tank 17 is communicated with the water tank through a pipeline; a first driving device is arranged on a pipeline of the upper water pipe 15 communicated with the cooling liquid tank 17, a second driving device is arranged on a pipeline of the lower water pipe 14 communicated with the circulating liquid tank, the first driving device and the second driving device are connected with a controller, and the detection system comprises a temperature monitoring device, a pressure detection device and a detection system connected with the controller; the drip tray is arranged at the lower side of the first demisting device 8 and the second demisting device 9.
The process of the invention is as follows: fig. 1, steam that produces behind the spray system heat transfer rises to defogging device downside, first through the bottom surface of first defogging device, divide two tunnel to rise to last space through lower taper and notch, contact the lower bottom surface of second defogging device, upwards converge and turn to turn back to last first defogging device bottom side, carry out the heat transfer with the cold source among the first second defogging device at this in-process, the condensation of release heat, and simultaneously contact the heat transfer with the defogging curb plate device of both sides, rise to the export of top of the tower in proper order.
When the tower body is mainly used for heat exchange circulation and the demisting is assisted, the fans on the two sides are opened to exhaust air, and when the tower body is mainly used for demisting, the fans on the two sides and the corresponding side plates are closed, so that a sufficient demisting effect is realized.
Fig. 2,4, first defogging device has the cold source mouth, in tower body one side, the cold source is got into by one side (left side), flow along the half cone shape downwardly extending runner, after the bottom, spiral shell screwing in, rise with the snake-shaped passageway intercommunication of buckling of the side defogging device on right side in the opposite side relative with the cold source import, after rising left the right side defogging device, flow into the first defogging device of last one-level with the same mode, analogize in proper order, flow out by tower body one side at last, accomplish the circulation of first defogging device cold source flow path.
Fig. 3 and 5, it should be noted that fig. 5 is a schematic cross section only illustrating the internal flow channels, the actual flow channels should be regular and distributed along the radial direction, and the actual inlet and outlet positions should be adjusted adaptively. The second defogging device is a plurality of, and the pipeline parallelly connected setting in every device is on house steward (upper and lower water pipe), has exit flow channel intercommunication house steward, and the medium of cooling tank lets in the entry in every second defogging device in proper order through the upper hose, and the fluid flows out to the downcomer and gets back to the circulation cistern after snakelike reciprocal circulation a week. This circulation is a positive circulation, and the flow to the circulation tank is performed by driving the cooling tank fluid. The speed or start and stop of circulation is controlled through a valve or other modes, when the temperature detection device detects that the temperature of the circulation liquid tank is reduced to the temperature of proper heat exchange, the water feeding of the cooling liquid tank can be stopped, meanwhile, the reverse water feeding of the circulation liquid tank driving device is started, and the circulation is reverse circulation. At this moment, the water-supply pipe becomes the downcomer, and the downcomer becomes the water-supply pipe, has avoided providing the cooling water-supply all the time like this, and the water consumption is big, and intelligent control can be realized to not enough intelligence and the uncontrollable problem of heat transfer effect.
Claims (10)
1. A cooling tower with a water mist treatment device comprises a tower body, a main fan, an air inlet, a main air outlet, filler, a spraying system, the water mist treatment device, a pump, a water tank, an auxiliary fan, an auxiliary air outlet, a detection system, a controller and a water pan; wherein the spraying system is provided with a plurality of spraying heads; the water mist treatment device is arranged above the spraying system, and the air inlet is arranged between the filler and the water tank;
the water mist treatment device comprises a plurality of first demisting devices and second demisting devices which are arranged in a crossed mode, the outer sides of the first demisting devices are connected with the inner wall of the tower body, spiral channels are arranged in the first demisting devices, and the spiral channels of the adjacent first demisting devices are communicated; a channel fluid inlet of the first demisting device is arranged on one side of the first demisting device, and a snake-shaped reciprocating return channel extends in the second demisting device along the radial direction of the second demisting device; the snake-shaped reciprocating return channel of the adjacent second demisting device is communicated with the circulating main pipe; the water mist treatment device further comprises a side plate demisting device, the side plate demisting device is arranged at auxiliary air outlets on two sides of the tower body, the first demisting device is in a semi-conical shape, and the second demisting device is in a conical shape.
2. A cooling tower with a water mist treatment device according to claim 1, wherein: the channel fluid outlet of the first demister is arranged at the other side of the first demister corresponding to the fluid inlet, and the spiral channels of the adjacent first demisting devices are communicated through the channels in the side plate demisting devices arranged between the adjacent first demisting devices.
3. A cooling tower with a water mist treatment device according to claim 1, wherein: the circulating main pipe comprises a water feeding pipe and a water discharging pipe, the inlet end of a fluid channel of the second demisting device is communicated with the water feeding pipe, the outlet end of the fluid channel is communicated with the water discharging pipe, the water feeding pipe of the main pipe is communicated with a cooling liquid tank through a pipeline, the water discharging pipe is communicated with the circulating liquid tank through a pipeline, and the water tank is communicated with the cooling liquid tank through a pipeline.
4. A cooling tower with a water mist treatment device according to claim 3, wherein: the pipeline that the upper hose and cooling cistern communicate is provided with first drive arrangement, is provided with the second drive arrangement on the pipeline that downcomer and circulation cistern communicate, and first, second drive arrangement connection director, detecting system include temperature monitoring devices, pressure measurement, detecting system connection director.
5. A cooling tower with a water mist treatment device according to claim 1, wherein: the side plate demisting device is in a grid plate shape and is provided with a plurality of transverse medium grids, and a back-turning circuitous snake-shaped channel is arranged in an inner cavity of the grid plate.
6. A cooling tower with a water mist treatment device according to claim 1, wherein: the two sides of the first conical demisting device are provided with notches for the steam collected at the lower part of the first conical demisting device to rise to the space at the upper side for heat exchange; the lateral wall of first and second defogging device is provided with a plurality of sharp recesses that from top to bottom extend for water conservancy diversion condensate liquid.
7. A cooling tower with a water mist treatment device according to claim 1, wherein: the contact position of the tower body and the auxiliary fan is provided with a plate which can be opened and closed and is used for controlling the conversion between a heat exchange mode and a demisting mode.
8. A cooling tower with a water mist treatment device according to claim 3, wherein: and the cooling liquid tank and/or the circulating liquid tank are/is connected with the water tank.
9. A cooling tower with a water mist treatment device according to claim 1, wherein: the water receiving tray is arranged on the lower sides of the first demisting device and the second demisting device.
10. A cooling tower with a water mist treatment device according to claim 1, wherein: when the tower body mainly uses the heat exchange circulation and the demisting is assisted, the fans at the two sides and the side plates are opened to exhaust air, and when the tower body mainly uses the demisting, the fans at the two sides and the corresponding side plates are closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811514210.7A CN109631615B (en) | 2018-12-12 | 2018-12-12 | Cooling tower with water mist treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811514210.7A CN109631615B (en) | 2018-12-12 | 2018-12-12 | Cooling tower with water mist treatment device |
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| Publication Number | Publication Date |
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| CN109631615A CN109631615A (en) | 2019-04-16 |
| CN109631615B true CN109631615B (en) | 2020-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811514210.7A Active CN109631615B (en) | 2018-12-12 | 2018-12-12 | Cooling tower with water mist treatment device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111981890B (en) * | 2019-07-15 | 2022-03-11 | 德州贝诺风力机械设备有限公司 | Filler module and mounting structure and cooling tower thereof |
| CN112393622B (en) * | 2020-11-13 | 2022-03-11 | 阜阳安固锅炉压力容器制造有限公司 | Natural draft wet cooling tower |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5714176A (en) * | 1980-07-01 | 1982-01-25 | Michifumi Doi | Cooling tower having gas-liquid contact on porous plate |
| CN203464783U (en) * | 2013-07-03 | 2014-03-05 | 烟台荏原空调设备有限公司 | Reverse-flow closed cooling tower |
| 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 |
| CN105466236A (en) * | 2015-12-06 | 2016-04-06 | 重庆市靳彬农业科技有限公司 | Novel environment-friendly cooling tower |
| CN205245875U (en) * | 2015-12-21 | 2016-05-18 | 西安安耐杰环保科技有限公司 | Energy -conserving dehydrator of trickle filler |
| CN106123623A (en) * | 2016-09-20 | 2016-11-16 | 洛阳隆华传热节能股份有限公司 | A kind of staged heat exchange closed cooling tower |
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