Reverse flow and transverse flow combined closed tower
By combining counter-flow and cross-flow closed tower design, and integrating counter-flow and cross-flow heat exchange methods, the problems of low heat transfer efficiency and high energy consumption are solved, achieving the effects of high-efficiency heat transfer and saving space.
Patent Information
- Application Number
- CN202423114774.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-17
AI Technical Summary
Existing composite flow closed-loop cooling towers have low heat transfer efficiency, large footprint, and high motor energy consumption, making them unsuitable for scenarios with large temperature differences or requiring a large amount of heat transfer.
Design a closed tower with a combination of counter-current and cross-current flow, which adopts a structure of spray pipes, packing, heat exchange tube group and water tank inside the shell. Combining counter-current and cross-current heat exchange methods, the tower uses a fan to draw air to form counter-current and cross-current heat exchange, and the sprayed water and dry air cross-flow to achieve efficient heat transfer.
It achieves a large amount of heat transfer with a small heat exchange area, reducing the equipment footprint and fan energy consumption, and is suitable for scenarios with large temperature differences or requiring a large amount of heat transfer.
Smart Images
Figure CN223691552U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of closed tower of counterflow and cross flow combination, belong to cooling tower technical field. BACKGROUND
[0002] Closed cooling tower is a kind of energy-saving efficient cooling equipment, adopts two kinds of circulating cooling methods of complete isolation inside and outside, utilizes latent heat of vaporization, so that inner circulating water reaches the purpose of cooling, is widely used in each industrial field.Closed cooling tower can be divided into cross flow closed cooling tower, counterflow closed cooling tower and composite flow closed cooling tower according to the different combination mode of spray water and wind direction.
[0003] At present, composite flow closed cooling tower is generally counterflow and cross flow combination closed tower, and the heat transfer efficiency of counterflow heat exchange is relatively low, which needs larger heat exchange area to achieve the same heat transfer amount, only suitable for the scene with small temperature difference or without large amount of heat transfer, and has the problems of large floor area and high motor energy consumption.
[0004] As known from the above, the prior art has obvious inconvenience and defects in actual use, so it is necessary to improve. CONTENT OF THE UTILITY MODEL
[0005] The utility model provides a kind of closed tower of counterflow and cross flow combination for the deficiency in the background art, and the heat transfer efficiency is high, can realize larger heat transfer amount under smaller heat exchange area, with the advantages of small floor area and low fan energy consumption.
[0006] To solve the above technical problems, the utility model adopts the following technical solutions:
[0007] A kind of closed tower of counterflow and cross flow combination, including shell, spray pipe, filler, heat exchange pipe group and water tank are sequentially installed from top to bottom in the shell, louver air inlet is equipped on the side wall below heat exchange pipe group, filler air inlet is equipped on the side wall outside filler, fan is installed on the top of shell, and fan is upwardly drawn.
[0008] Further, the inner chamber top of the shell is installed with water collector, and the water collector is located between spray pipe and fan.
[0009] Further, the water tank is fixedly installed with circulating water pump outside, and the outlet of circulating water pump is connected with spray pipe by pipeline.
[0010] Further, the bottom of the spray pipe is installed with multiple nozzles evenly distributed, and the nozzle evenly sprays spray water downward to the surface of filler.
[0011] Further, the heat exchange pipe group includes multiple heat exchange pipes, and adjacent heat exchange pipes are staggered, and the heat exchange pipe is of coil type structure.
[0012] Further, the top end of the heat exchange pipe is fixedly connected with a transversely arranged shunt pipe, the inner cavities are connected, and a medium inlet is arranged on the shunt pipe.
[0013] Further, the bottom end of the heat exchange pipe is fixedly connected with a transversely arranged shunt pipe, the inner cavities are connected, and a medium outlet is arranged on the shunt pipe.
[0014] The above technical scheme is adopted in the utility model, and compared with the prior art, has the following advantages.
[0015] In the utility model, the heat exchange of the filler part is cross flow heat exchange, the heat exchange of the heat exchange pipe bundle part is counter flow heat exchange, the efficient counter flow heat exchange is combined with the cross flow auxiliary heat exchange, the equipment heat exchange can be more efficient, a large heat transfer capacity can be realized under a smaller heat exchange area, the utility model has the advantages of small land occupation and low fan energy consumption, and can meet the cooling demand of a large temperature difference or a large amount of heat transfer scene.
[0016] The utility model will be described in detail below in combination with the drawings and embodiments. DRAWINGS
[0017] Figure 1 It is the structure schematic diagram of the utility model;
[0018] Figure 2 It is the structure schematic diagram of the heat exchange pipe group.
[0019] In the drawing, 1 is a fan, 2 is a spray pipe, 3 is a filler, 4 is a filler air inlet, 5 is a heat exchange pipe group, 51 is a heat exchange pipe, 52 is a shunt pipe, 53 is a confluence pipe, 54 is a medium inlet, 55 is a medium outlet, 6 is a louver air inlet, 7 is a water tank, 8 is a circulating water pump, and 9 is a shell. CONCRETE IMPLEMENTING METHOD
[0020] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementing method of the utility model will be described in combination with the drawings.
[0021] As shown in Figure 1 and Figure 2 The utility model provides a kind of closed tower of counter flow and cross flow combination formula, including shell 9, spray pipe 2, filler 3, heat exchange pipe group 5 and water tank 7 are sequentially installed in shell 9 from top to bottom.
[0022] Louver air inlet 6 is equipped on the side wall below heat exchange pipe group 5. External dry air enters tower from louver air inlet 6 and flows upwards, and forms counter flow heat exchange with the spray water that is sprayed downwards.
[0023] The side wall outside the filler 3 is provided with a filler air inlet 4.
[0024] The fan 1 is installed above the shell 9, the fan 1 upwardly draws air, and the number of the fan 1 can be selected flexibly according to cooling needs.
[0025] The water collector is installed at the top of the inner cavity of the shell 9, is located between the spray pipe 2 and the fan 1, and is used for removing water droplets entrained in the wet air.
[0026] The circulating water pump 8 is fixedly installed outside the water tank 7, the outlet of the circulating water pump 8 is connected with the spray pipe 2 through a pipeline, and the circulating water pump 8 lifts water in the water tank 7 to the spray pipe 2.
[0027] The spray pipe 2 is provided with a plurality of nozzles which are uniformly distributed and which uniformly spray the spray water downward to the surface of the filler 3.
[0028] The number of the heat exchange pipe group 5 can be selected flexibly according to cooling needs, the heat exchange pipe group 5 comprises a plurality of heat exchange pipes 51, adjacent heat exchange pipes 51 are staggered, and the heat exchange pipe 51 is in a coil type structure.
[0029] The top end of the heat exchange pipe 51 is fixedly connected with the cross-flow pipe 52 which is arranged in a transverse mode and is in communication with the inner cavities, and the cross-flow pipe 52 is provided with a medium inlet 54.
[0030] The bottom end of the heat exchange pipe 51 is fixedly connected with the confluence pipe 53 which is arranged in a transverse mode and is in communication with the inner cavities, and the confluence pipe 53 is provided with a medium outlet 55.
[0031] The specific working principle of the utility model is as follows:
[0032] The cooled medium enters the heat exchange pipe group 5 to exchange heat, the dry air from the outside enters the tower through the louver air inlet 6 and flows upward, and the spray water which is sprayed downward exchanges heat with the spray water, the spray water which is sprayed to the surface of the heat exchange pipe 51 evaporates and absorbs the heat in the heat exchange pipe 51, the water which is not evaporated falls back to the water tank 7, the nearly saturated wet air flows upward under the action of the top fan 1, the spray water mixes with the dry air from the outside which enters in a transverse mode at the filler 3, the saturation humidity is reduced, the spray water on the surface of the filler 3 continues to evaporate, the temperature of the spray water is reduced, and the air becomes the saturated wet air again and is drawn out by the top fan 1.
[0033] The heat exchange of the filler part is cross flow heat exchange, the heat exchange of the heat exchange tube bundle part is counter flow heat exchange, the efficient counter flow heat exchange is combined with the cross flow auxiliary heat exchange, the equipment heat exchange is more efficient, and the device has the advantages of small land occupation and low fan energy consumption.
[0034] The above is an example of the best embodiment of the utility model, wherein the parts not described in detail are common knowledge of those skilled in the art. The protection scope of the utility model is subject to the content of the claims, and any equivalent transformation based on the technical inspiration of the utility model is also within the protection scope of the utility model.
Claims
1. A counter-current combined with cross-current closed column, characterized in that: The shell (9) is internally provided with a spray pipe (2), a filler (3), a heat exchange pipe group (5) and a water tank (7) from top to bottom; A louvered air inlet (6) is arranged on the side wall below the heat exchange pipe group (5); A filler air inlet (4) is arranged on the side wall outside the filler (3); A fan (1) is arranged above the shell (9) to draw air upward.
2. A combination counter-current and cross-current closed column according to claim 1, wherein: A water collector is arranged on the top of the inner cavity of the shell (9) and is located between the spray pipe (2) and the fan (1).
3. A combination counter-current and cross-current closed column according to claim 1, wherein: A circulating water pump (8) is fixedly arranged outside the water tank (7), and the outlet of the circulating water pump (8) is connected with the spray pipe (2) through a pipeline.
4. A combination counter-current and cross-current closed column according to claim 1, wherein: A plurality of nozzles are arranged on the bottom of the spray pipe (2) and are uniformly distributed, and the nozzles uniformly spray water downward to the surface of the filler (3).
5. A combination counter-current and cross-current closed column according to claim 1, wherein: The heat exchange pipe group (5) comprises a plurality of heat exchange pipes (51), and adjacent heat exchange pipes (51) are staggered.
6. A combination counter-current and cross-current closed column according to claim 5, wherein: The top end of the heat exchange pipe (51) is fixedly connected with a transversely arranged shunt pipe (52), the inner cavities are connected, and a medium inlet (54) is arranged on the shunt pipe (52).
7. A combination counter-current and cross-current closed column according to claim 6, wherein: The bottom end of the heat exchange pipe (51) is fixedly connected with a transversely arranged confluence pipe (53), the inner cavities are connected, and a medium outlet (55) is arranged on the confluence pipe (53).