CN113494858A - Composite cooling tower - Google Patents
Composite cooling tower Download PDFInfo
- Publication number
- CN113494858A CN113494858A CN202010200523.6A CN202010200523A CN113494858A CN 113494858 A CN113494858 A CN 113494858A CN 202010200523 A CN202010200523 A CN 202010200523A CN 113494858 A CN113494858 A CN 113494858A
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- Prior art keywords
- cooling tower
- water
- falling film
- vertical falling
- pipeline
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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
- F28C1/14—Direct-contact trickle coolers, e.g. cooling towers comprising also a non-direct contact heat exchange
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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
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
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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
- F28F25/02—Component parts of trickle coolers for distributing, circulating, and accumulating liquid
- F28F25/08—Splashing boards or grids, e.g. for converting liquid sprays into liquid films; Elements or beds for increasing the area of the contact surface
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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
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to the technical field of cooling, in particular to a composite cooling tower, which comprises a spraying system, a water collecting tray, a fan and a vertical falling film heat exchanger, wherein the vertical falling film heat exchanger is vertically arranged below a spraying device; the water collecting tray is internally provided with a heat exchange filler which is arranged below the vertical falling film heat exchanger; the first pipeline is connected to the conveying water pipe, the inlet header is connected with the conveying water pipe through the first pipeline, and a first stop valve is arranged between the conveying water pipe and the inlet header; the outlet header is connected with the water collecting tray through a second pipeline and a third pipeline, and a second stop valve and a third stop valve are correspondingly arranged on the second pipeline and the third pipeline respectively. The composite cooling tower can integrate the functions of a closed cooling tower and a starting cooling tower under the condition of basically unchanged volume and weight, and solves the problems of single function and low cooling efficiency of cooling and heat exchange equipment in the prior art.
Description
Technical Field
The invention relates to the technical field of cooling, in particular to a composite cooling tower.
Background
The cooling tower is a high-efficiency cooling device, which comprises a closed cooling tower and an open cooling tower, wherein the heat of process fluid is taken away by mainly utilizing the latent heat of evaporation of water to finish cooling the process fluid, and the process fluid is usually circulating water; and meanwhile, the cyclic utilization of the spray water is realized.
For closed cooling towers, the process fluid flows within the coil, conducting heat out of the tube through the wall of the tube; meanwhile, spray water is sprayed outside the pipe, a water film is formed on the outer wall of the pipe, and a heat exchange process of heat transfer and mass transfer is carried out outside the pipe through spray evaporation under the action of air, so that heat transfer is realized.
The closed cooling tower can ensure that the water quality is not polluted, well protects the high-efficiency operation of the main equipment and prolongs the service life.
For an open cooling tower, process fluid is directly sprayed onto a filler heat exchange layer through a spraying system to perform heat and moisture exchange with air, and the heat exchange effect is generally better than that of a closed cooling tower due to the fact that one heat exchange process is omitted.
The closed cooling tower and the open cooling tower respectively have advantages and disadvantages, a common cooling tower can only singly select one type of cooling system, and can only be used under one working condition because the function is single, and the multi-working condition use requirements cannot be considered, for example, the use mode cannot be selected according to the change of temperature, and the closed cooling tower and the open cooling tower are not suitable for being used in regions with extremely large annual climate change.
In addition, in horizontal coil closed cooling tower, the shower water collides the heat transfer with smooth pipe, when shower discharge is great, the coil pipe vibrates easily to the collision noise is great. And because the coil pipe adopts regular triangle to pitch row mode to arrange mostly, the air flows to less, and the resistance is great to the easy scale deposit of windward side influences heat transfer effect.
It can be seen that the cooling tower in the prior art has the following disadvantages:
1. the cooling tower in the prior art has single function, only has the function of one of a closed cooling tower and an open cooling tower, and is not suitable for being used in regions with particularly large annual climate change.
2. Current cooling tower all adopts horizontal coil pipe, and when spraying discharge is great, the coil pipe vibrates easily to the collision noise is great, and because the coil pipe adopts regular triangle to pitch the way and arranges mostly, the air current is to less, and the resistance is great, and the easy scale deposit of windward side influences heat transfer effect.
Disclosure of Invention
The invention aims to: in order to solve the problems in the prior art, the invention provides a composite cooling tower.
In order to solve the problems in the prior art, the invention adopts the following technical scheme:
a composite cooling tower comprises a spraying system, a water collecting tray and a fan, wherein the fan is arranged at the upper part of the composite cooling tower, and the water collecting tray is arranged at the lower part of the composite cooling tower;
the spraying system comprises a spraying device and a spraying water pump, the spraying device, the spraying water pump and the water collecting tray are connected through water pipes, and the water pipe connecting the spraying device and the spraying water pump is a conveying water pipe;
the composite cooling tower also comprises a vertical falling film heat exchanger which is vertically arranged below the spraying device; a heat exchange filler is arranged in the water collecting tray and is arranged below the vertical falling film heat exchanger;
the vertical falling film heat exchanger comprises an inlet header, an outlet header and a plurality of vertical falling film coiled pipes, wherein the vertical falling film coiled pipes are vertically connected between the inlet header and the outlet header;
the water conveying pipe is connected with a first pipeline, the inlet header is connected with the water conveying pipe through the first pipeline, the first pipeline is provided with a first stop valve, and the first stop valve is arranged between the water conveying pipe and the inlet header;
the outlet header is connected with a second pipeline; the water collecting tray is also connected with a third pipeline, and a second stop valve and a third stop valve are correspondingly arranged on the second pipeline and the third pipeline respectively.
As an improvement of the technical scheme of the composite cooling tower, a dehydrator is also arranged in the water collecting tray and is arranged on one side of the heat exchange filler.
As an improvement of the technical scheme of the composite cooling tower, a ventilation fence is arranged on the side wall of the composite cooling tower, an upper ventilation opening is arranged on the upper part of the composite cooling tower, and the fan is arranged in the upper ventilation opening.
As an improvement of the technical solution of the composite cooling tower of the present invention, the inlet header is disposed at the upper portion of the vertical falling film heat exchanger, and the outlet header is disposed at the lower portion of the vertical falling film heat exchanger.
As an improvement of the technical scheme of the composite cooling tower, each vertical falling-film coil pipe comprises a plurality of vertical heat exchange pipes and a plurality of elbows, and the vertical heat exchange pipes are connected with the elbows at intervals.
As an improvement of the technical scheme of the composite cooling tower, the vertical heat exchange tubes are elliptical tubes, and when the center distance between two adjacent elliptical tubes is equal to the long-axis distance outside the elliptical tubes, a plurality of contact points exist between the two elliptical tubes.
As an improvement of the technical scheme of the composite cooling tower, gaps with equal distance exist between the adjacent vertical heat exchange tubes, the gaps are 5-100mm, and fillers are arranged in the gaps.
As an improvement of the technical scheme of the composite cooling tower, the delivery water pipe is provided with a check valve, and the direction of the check valve is consistent with the direction of flowing water.
The invention has the beneficial effects that:
1. the composite cooling tower can integrate the functions of a closed cooling tower and a starting cooling tower under the condition of basically unchanged volume and weight, and solves the problems of single function and low cooling efficiency of cooling and heat exchange equipment in the prior art.
2. In the vertical falling film type heat exchanger in the composite cooling tower, because the plurality of vertical falling film serpentine pipes are vertically arranged between the inlet header and the outlet header, the direction of spray water is consistent with the air flow direction during spraying, the possibility of dry spots and scaling on the windward side of the vertical falling film serpentine pipes due to the reverse wind and water is reduced, the driving of circulating air is realized, the flow speed of the water film is accelerated, a turbulent flow state is easily formed on the surfaces of the vertical falling film serpentine pipes, and the heat exchange effect of the spray water and cooling media in the pipes is better. Meanwhile, the problem that in the prior art, most of the coil pipes are arranged in a regular triangle staggered mode, air flow channels are small, resistance is large, scaling is easy to occur on the windward side, and the heat exchange effect is affected is solved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of a first embodiment of a vertical falling film heat exchanger according to the present invention;
FIG. 3 is a left side view of FIG. 2;
fig. 4 is a schematic structural diagram of a second embodiment of the vertical falling film heat exchanger in the invention;
fig. 5 is a left side view of fig. 4.
Description of reference numerals: 1-vertical falling film heat exchanger; 2-a fan; 3-a spray water pump; 4-heat exchange packing; 5-a spraying device; 6, a water collecting disc; 7-a dehydrator; 8-a one-way valve; 9-a first stop valve; 10-a second stop valve; 11-a third stop valve; 12-a first conduit; 13-a second conduit; 14-a third line; 15-vertical falling film serpentine; 16-an inlet header; 17-outlet header.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of embodiments of the present invention, and not all embodiments.
As shown in fig. 1, the composite cooling tower comprises a spraying system, a water collecting tray 6 and a fan 2, wherein the fan 2 is arranged at the upper part of the composite cooling tower, and the water collecting tray 6 is arranged at the lower part of the composite cooling tower.
The spraying system comprises a spraying device 5 and a spraying water pump 3, the spraying device 5, the spraying water pump 3 and a water collecting tray 6 are connected through water pipes, and the water pipe connecting the spraying device 5 and the spraying water pump 3 is a water conveying pipe.
The composite cooling tower also comprises a vertical falling film heat exchanger 1, and the vertical falling film heat exchanger 1 is vertically arranged below the spraying device 5. The water collecting tray 6 is provided with a heat exchange filler 4, and the heat exchange filler 4 is arranged below the vertical falling film heat exchanger.
The vertical falling film heat exchanger 1 comprises an inlet header 16, an outlet header 17 and a plurality of vertical falling film serpentine tubes 15, wherein the plurality of vertical falling film serpentine tubes 15 are vertically connected between the inlet header 16 and the outlet header 17.
The delivery water pipe is connected with a first pipeline 12, the inlet header 16 is connected with the delivery water pipe through the first pipeline 12, a first stop valve 9 is arranged on the first pipeline 12, and the first stop valve 9 is arranged between the delivery water pipe and the inlet header 16.
The outlet header 17 is connected with the second pipeline 13, the water collecting tray 6 is connected with the third pipeline 14, and the second pipeline 13 and the third pipeline 14 are respectively provided with a second stop valve 10 and a third stop valve 11 correspondingly.
The first pipe 12, the second pipe 13 and the third pipe 14 form a supply circulation line, and a first water pump is arranged in the supply circulation line, the first water pump is used for controlling the flow of the process fluid in the first pipe 12, the second pipe 13 and the third pipe 14, and the flow direction of the process fluid can be adjusted when the first stop valve 9, the second stop valve 10 and the third stop valve 11 are respectively arranged on the first pipe 12, the second pipe 13 and the third pipe 14 in an opening and closing state.
Because the vertical falling film heat exchanger 1 is vertically arranged below the spraying device 5, under the action of gravity, when the spraying device 5 sprays, the spraying water forms a falling water film on the surface of the vertical falling film heat exchanger 1, and the heat and moisture exchange between the falling water film and the process fluid in the vertical falling film heat exchanger 1 can be completed under the action of the falling water film, so that the condensation effect of the composite cooling tower is improved.
A dehydrator 7 is further disposed in the water collection tray 6, and the dehydrator 7 is disposed on one side of the heat exchange packing 4. Preferably, a ventilation fence is arranged on the side wall of the composite cooling tower, an upper vent is arranged on the upper part of the composite cooling tower, the fan 2 is arranged in the upper vent, air enters the composite cooling tower from the ventilation fence, and then partial air is discharged from the upper vent under the action of the fan 2 to form air circulation, and more preferably, the dehydrator 7 is arranged on one side of the water collecting tray 6 far away from the ventilation fence. Because the air and the process fluid or the spray water dropping into the heat exchange filler 4 carry out heat and moisture exchange, when the air flows through the heat exchange filler 4, the air can carry certain moisture, and after the air passes through the dehydrator 7, the moisture in the air can be removed, namely, the moisture in the air is separated from the air, so that the air discharged from the composite cooling tower is drier, and the loss of the process fluid or the spray water in the composite cooling tower can be reduced.
The use of the present invention is divided into a summer mode, a transitional season mode, and a winter mode.
In the summer mode, the cooling effect is achieved based on the characteristics of the starting cooling tower. Before use, the water in the water collecting tray 6 is drained, then the spray water pump 3, the fan 2, the first stop valve 9 and the third stop valve 11 are opened, and the second stop valve 10 is closed. When the vertical falling film type heat exchanger is used, the first stop valve 9 is in an open state, under the action of the first water pump, the process fluid flows from the inlet header 16, enters the first pipeline 12 and gradually enters the conveying water pipe, in the conveying water pipe, under the action of the spray water pump 3, the process fluid reaches the position of the spray device 5 and is sprayed onto the outer surface of the vertical falling film type heat exchanger 1 through the spray device 5, the vertical falling film type heat exchanger 1 is vertically arranged above the heat exchange filler 4, after reaching the outer surface of the vertical falling film type heat exchanger 1, the process fluid drops into the heat exchange filler 4 under the action of gravity, exchanges heat with air entering from the ventilation fence in the heat exchange filler 4, then drops back into the water collecting tray 6, and then reaches the spray device 5 under the action of the spray water pump 3 for secondary spraying. When the temperature of the process fluid has reached the desired temperature, it is supplied from the water collection tray 6 through the third shut-off valve 11 and from the third pipe 14 to the user under the influence of the first water pump.
In the transition season mode, the cooling effect is achieved in a first manner based on the characteristics of the closed cooling tower. Before use, the spray water pump 3, the fan 2 and the second stop valve 10 are opened, and the first stop valve 9 and the third stop valve 11 are closed. When the vertical falling film heat exchanger is used, process fluid flows in the vertical falling film heat exchanger 1, water in the water collecting tray 6 is sprayed on the outer surface of the vertical falling film heat exchanger 1 through the spraying device 5 under the action of the spraying water pump 3, the sprayed water forms a falling water film on the outer surface of the vertical falling film heat exchanger 1, and heat and moisture exchange is carried out between the falling water film and the process fluid in the vertical falling film heat exchanger 1.
In detail, with the first shut-off valve 9 in the closed state, the process fluid in the vertical falling film heat exchanger 1 flows from the inlet header 16 through the vertical falling film serpentine 15 to the outlet header 17 under the action of the first water pump. Meanwhile, under the action of the spray water pump 3, the water in the water collecting tray 6 sprays water from the spraying device 5 to the outer surface of the vertical falling film heat exchanger 1 to form a falling water film, and the heat and moisture exchange is carried out between the falling water film and the process fluid in the vertical falling film heat exchanger 1. The heat exchange packing 4 is arranged below the vertical falling film heat exchanger 1, spray water flowing through the vertical falling film heat exchanger 1 is subjected to heat and moisture exchange with process fluid, so the spray water has certain heat, the spray water flowing through the vertical falling film heat exchanger 1 is dripped downwards under the action of gravity and is dripped into the heat exchange packing 4, the spray water is contacted with air entering from the ventilation fence in the heat exchange packing 4 and is subjected to heat exchange with the air, the temperature of the spray water is reduced and returns to the water collecting tray 6, and the spray water is sprayed onto the outer surface of the vertical falling film heat exchanger 1 again under the action of the spray water pump 3 and the spraying device 5. When the temperature of the process fluid has reached the desired temperature, the process fluid flows through the second shut-off valve 10 and is supplied to the customer along the second line 13.
In the winter mode, the cooling effect is achieved in a second way based on the characteristics of the closed cooling tower. Before use, the fan 2 and the second stop valve 10 are opened, and the spray water pump 3, the first stop valve 9 and the third stop valve 11 are closed. In use, a process fluid in the vertical falling film heat exchanger 1 flows from the inlet header 16 through the vertical falling film serpentine tubes 15 and then out the outlet header 17. When the process fluid flows in the vertical falling film heat exchanger 1, the air contacts the outer surface of the vertical falling film heat exchanger 1 and transfers heat with each other. The process fluid after heat transfer, under the action of the first water pump, flows through the second shut-off valve 10 and is supplied to the customer via the second line 13.
As a first embodiment of the vertical falling film heat exchanger 1 according to the present invention, as shown in fig. 2 and 3, the inlet header 16 is disposed at the upper part of the vertical falling film heat exchanger 1, the outlet header 17 is disposed at the lower part of the vertical falling film heat exchanger 1, and the process fluid enters the vertical falling film serpentine 15 from the inlet header 16 and then is discharged from the outlet header 17, i.e. the process fluid adopts an up-in-down flow pattern in the vertical falling film heat exchanger 1.
When spraying water, the spraying direction is from top to bottom, the spraying water flows from top to bottom, the spraying water forms a descending water film on the outer surface of the vertical falling film coil pipe 15 in the vertical falling film heat exchanger 1, the water film absorbs heat in the vertical falling film coil pipe 15 to heat up, heat and moisture exchange is carried out between the water film and process fluid in the vertical falling film coil pipe 15, partial water vapor is taken away by air, the temperature of the spraying water is reduced, and the efficient condensation effect through the vertical falling film is realized. Compare with the coil pipe that horizontal coil pipe or regular triangle form fork row mode among the prior art arranged, under the effect of gravity, the shower water from last down forms descending formula water film on vertical falling film heat exchanger 1's surface, simultaneously, under the effect of shower water, under the condition of the same water yield, can accelerate the flow rate of the shower water that forms the water film, realizes the effect of condensation more efficiently.
Each vertical falling film coiled pipe 15 comprises a plurality of vertical heat exchange pipes and a plurality of elbows, the length of the vertical falling film coiled pipe can be prolonged, the flowing distance of the process fluid in the vertical falling film coiled pipe is prolonged, the contact time of the process fluid and spray water or air is longer, and then the cooling effect is more obvious.
As a second embodiment of the vertical falling film heat exchanger 1 according to the present invention, as shown in fig. 4 and 5, in addition to the first embodiment, the vertical falling film serpentine tubes 15 are twisted tubes, and the twisted tubes increase the distance of the water flow on the outer surface of the vertical falling film serpentine tubes 15 forming the water-adding water flow and extend the time of the water film flow, so that the effect of heat exchange between the water film and the process fluid is more significant.
Preferably, the twisted pipe is an oval pipe, and when the center distance between two adjacent oval pipes is equal to the long axis distance outside the oval pipe, a plurality of contact points exist between the two oval pipes.
In detail, the horizontal section of the oval tube is oval, and the oval comprises a long end and a short end. Because the twisted pipe is an oval pipe, when the center distance between two adjacent oval pipes is equal to the long-axis distance outside the oval pipe, a plurality of contact points exist between the two oval pipes, namely when the center distance between the two adjacent oval pipes is equal to the long-axis distance outside the oval pipe, the long ends of the adjacent oval pipes are in contact with each other to form a plurality of contact points. When the spray water is sprayed, the situation that the vertical falling film coiled pipe 15 vibrates when the flow of the spray water is large can be avoided through the plurality of contact points, so that the flow velocity of air outside the vertical falling film coiled pipe 15 can be improved, the effect of enhancing the heat transfer performance of the air outside the vertical falling film coiled pipe 15 is realized, and the collision noise between the adjacent vertical falling film coiled pipes 15 can be reduced when the vertical falling film coiled pipe 15 vibrates.
Further, gaps with equal distances exist between adjacent vertical falling film serpentine tubes 15. In detail, because the vertical falling film serpentine tubes 15 are vertically arranged between the inlet header 16 and the outlet header 17, namely, a plurality of gaps are arranged in the vertical falling film high-efficiency condenser, and the distances between the gaps are equal, the production of the vertical falling film serpentine tubes 15 in batches is facilitated, and the production cost is reduced.
Preferably, the gap is 5-100mm, and in the gap range, the distance between the adjacent vertical falling film serpentine tubes 15 can be prevented from being too large, and a plurality of contact points can be formed between the adjacent elliptical tubes. Meanwhile, the cooling effect can be ensured.
Further, be provided with the filler in the clearance, can prolong the time that the water film descends through the filler, prevent that spray water from directly dripping, can also increase the area of contact of spray water and air simultaneously, effectively reduce its temperature, make spray water and vertical falling liquid film coiled pipe 15's heat exchange effect more obvious, more high-efficient.
The water conveying pipe is also provided with a check valve 8, and the direction of the check valve 8 is consistent with that of the flowing water. The water flow direction under the action of the spray water pump 3 can be ensured, and the water in the water pipe cannot flow back to the water collecting tray 6.
All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
Claims (8)
1. A composite cooling tower comprises a spraying system, a water collecting tray and a fan, wherein the fan is arranged at the upper part of the composite cooling tower, and the water collecting tray is arranged at the lower part of the composite cooling tower;
the spraying system comprises a spraying device and a spraying water pump, the spraying device, the spraying water pump and the water collecting tray are connected through water pipes, the water pipe connecting the spraying device and the spraying water pump is a conveying water pipe, and is characterized in that,
the composite cooling tower also comprises a vertical falling film heat exchanger which is vertically arranged below the spraying device; a heat exchange filler is arranged in the water collecting tray and is arranged below the vertical falling film heat exchanger;
the vertical falling film heat exchanger comprises an inlet header, an outlet header and a plurality of vertical falling film coiled pipes, wherein the vertical falling film coiled pipes are vertically connected between the inlet header and the outlet header;
the water conveying pipe is connected with a first pipeline, the inlet header is connected with the water conveying pipe through the first pipeline, the first pipeline is provided with a first stop valve, and the first stop valve is arranged between the water conveying pipe and the inlet header;
the outlet header is connected with a second pipeline; the water collecting tray is also connected with a third pipeline, and a second stop valve and a third stop valve are correspondingly arranged on the second pipeline and the third pipeline respectively.
2. A hybrid cooling tower according to claim 1, wherein a water trap is further provided in the water collection tray, the water trap being disposed on one side of the heat exchange packing.
3. A hybrid cooling tower according to claim 2, wherein a ventilation fence is provided on a side wall of the hybrid cooling tower, an upper vent is provided on an upper portion of the hybrid cooling tower, and the fan is disposed in the upper vent.
4. A hybrid cooling tower according to claim 1, wherein the inlet header is disposed at an upper portion of the vertical falling film heat exchanger and the outlet header is disposed at a lower portion of the vertical falling film heat exchanger.
5. A hybrid cooling tower according to claim 1, wherein each of the vertical falling film serpentine tubes comprises a plurality of vertical heat exchange tubes and a plurality of bends, and the plurality of vertical heat exchange tubes and the plurality of bends are alternately connected.
6. A composite cooling tower according to claim 5, wherein the vertical heat exchange tubes are oval tubes, and when the center distance between two adjacent oval tubes is equal to the long axis distance outside the oval tubes, a plurality of contact points exist between the two oval tubes.
7. A composite cooling tower according to claim 6, wherein gaps with equal distance exist between adjacent vertical heat exchange tubes, the gaps are 5-100mm, and a filler is arranged in the gaps.
8. The hybrid cooling tower according to claim 1, wherein a check valve is provided on the delivery pipe, and the check valve is oriented in the same direction as the flowing water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010200523.6A CN113494858A (en) | 2020-03-20 | 2020-03-20 | Composite cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010200523.6A CN113494858A (en) | 2020-03-20 | 2020-03-20 | Composite cooling tower |
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| Publication Number | Publication Date |
|---|---|
| CN113494858A true CN113494858A (en) | 2021-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010200523.6A Pending CN113494858A (en) | 2020-03-20 | 2020-03-20 | Composite cooling tower |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2658688Y (en) * | 2003-11-11 | 2004-11-24 | 洛阳隆华制冷设备有限公司 | Evaporation type condenser having finned cooling pipe set |
| CN103148644A (en) * | 2013-03-22 | 2013-06-12 | 郭永 | Micro-channel falling film evaporation type condenser |
| CN106091728A (en) * | 2016-06-03 | 2016-11-09 | 西安工程大学 | The step cooling down water with composite construction prepares cooling tower |
| US20180094884A1 (en) * | 2016-09-30 | 2018-04-05 | Baltimore Aircoil Company, Inc. | Water Collection/Deflection Arrangements |
-
2020
- 2020-03-20 CN CN202010200523.6A patent/CN113494858A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2658688Y (en) * | 2003-11-11 | 2004-11-24 | 洛阳隆华制冷设备有限公司 | Evaporation type condenser having finned cooling pipe set |
| CN103148644A (en) * | 2013-03-22 | 2013-06-12 | 郭永 | Micro-channel falling film evaporation type condenser |
| CN106091728A (en) * | 2016-06-03 | 2016-11-09 | 西安工程大学 | The step cooling down water with composite construction prepares cooling tower |
| US20180094884A1 (en) * | 2016-09-30 | 2018-04-05 | Baltimore Aircoil Company, Inc. | Water Collection/Deflection Arrangements |
Non-Patent Citations (1)
| Title |
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| 钱泰磊等: "闭式冷却塔的影响因素分析", 《流体机械》 * |
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Application publication date: 20211012 |