Cooling tower with large air volume

Abstract

The utility model relates to a cooling tower with large air volume, which comprises a tower body, a fan, a plate heat exchanger, water distributors symmetrically arranged in the tower body, a filler combination module, a water receiving tank, pre-cooling surface air coolers, a pre-cooling water pump, a cooling water pump and a controller, the filler combination module is located behind the pre-cooling surface air cooler in the air inlet direction, the water distributor is located above the filler combination module, the filler combination module comprises three vertical fillers arranged at equal intervals and a transverse filler for preventing water floating, the transverse filler is located above the vertical fillers, and the transverse filler is located above the vertical fillers. And the fan, the pre-cooling water pump and the cooling water pump are electrically connected with the controller. According to the cooling device, the cooling effect can be met, meanwhile, wind resistance is reduced, part of filler is reduced, cost is effectively saved, and good economic benefits are achieved.

Description

Technical Field

[0001] The utility model relates to the field of cooling towers, in particular to a cooling tower with a large air volume. Background Art

[0002] The filler used in existing cooling towers is usually 500mm thick. Due to the thick thickness, the wind resistance is also large, resulting in insufficient heat exchange air volume, and water scooping may occur when the water distribution volume is large. In order to solve the above problems, it is necessary to re-plan the filler layout and make innovative improvements to the cooling tower without affecting the cooling effect. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, the purpose of the utility model is to provide a cooling tower with a large air volume. The technical solution of the implementation case of the utility model is as follows:

[0004] A cooling tower with a large air volume, comprising a tower body, a fan, a plate heat exchanger, a water distributor symmetrically arranged inside the tower body, a filler assembly module, a water receiving box, a precooling surface cooler, a precooling water pump, a cooling water pump and a controller, wherein the precooling surface cooler is located at the air inlets on both sides of the tower body, the filler assembly module is located behind the precooling surface cooler in the air inlet direction, the water distributor is located above the filler assembly module, the water outlet of the precooling surface cooler is connected to the water distributor through a pipeline, the water inlet of the precooling surface cooler is connected to the water outlet end of the precooling water pump through a pipeline, and the water inlet end of the precooling water pump is connected to the water outlet end of the precooling water pump through a pipeline. The tower body is connected to the water receiving tank, the water inlet of the cooling water pump is connected to the water receiving tank through a pipeline, the water outlet of the cooling water pump is connected to the cold end inlet of the plate heat exchanger through a pipeline, the cold end outlet of the plate heat exchanger is connected to the water distributor through a pipeline, the hot end of the plate heat exchanger is connected to the external chilled water network through a pipeline, the fan is located at the top of the tower body, the filler combination module includes three vertical fillers arranged at equal intervals, and anti-drifting water transverse fillers, the transverse fillers are located above the vertical fillers, and the fan, the precooling water pump, the cooling water pump and the controller are electrically connected.

[0005] Preferably, the thickness of the vertical filler is equal to the spacing between the vertical fillers.

[0006] Preferably, the sum of the thickness of the vertical filler and the spacing between the vertical fillers is equal to the width of the transverse filler.

[0007] Preferably, the thickness of the transverse filler is equal to the thickness of the vertical filler.

[0008] Compared with the prior art, the beneficial effect of the utility model lies in: by designing the conventional 500mm thick filler into a module of 100mm thick filler + 100mm thick water-spraying hollow area + 100mm thick filler + 100mm thick water-spraying hollow area + 100mm thick filler, while meeting the cooling effect, the wind resistance is reduced, and the 200mm thick filler is reduced, which effectively saves costs and has good economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the structural principle of a large air volume cooling tower in the utility model;

[0010] 10. Fan; 20. Plate heat exchanger; 30. Water distributor; 41. Vertical filler; 42. Horizontal filler; 50. Water receiving tank; 60. Precooling surface cooler; 70. Precooling water pump; 80. Cooling water pump. DETAILED DESCRIPTION

[0011] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0012] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0013] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0014] like Figure 1 As shown, Figure 1A cooling tower with a large air volume, comprising a tower body, a fan 10, a plate heat exchanger 20, a water distributor 30 symmetrically arranged inside the tower body, a filler assembly module, a water receiving box 50, a precooling surface cooler 60, a precooling water pump 70, a cooling water pump 80 and a controller, wherein the precooling surface cooler 60 is located at the air inlets on both sides of the tower body, the filler assembly module is located behind the precooling surface cooler 60 in the air inlet direction, the water distributor 30 is located above the filler assembly module, the water outlet of the precooling surface cooler 60 is connected to the water distributor 30 through a pipeline, the water inlet of the precooling surface cooler 60 is connected to the water outlet end of the precooling water pump 70 through a pipeline, and the water inlet end of the precooling water pump 70 is connected to the water outlet end of the precooling water pump 70 through a pipeline. The water receiving box 50 is connected, the water inlet end of the cooling water pump 80 is connected to the water receiving box 50 through a pipeline, the water outlet end of the cooling water pump 80 is connected to the cold end inlet of the plate heat exchanger 20 through a pipeline, the cold end outlet of the plate heat exchanger 20 is connected to the water distributor 30 through a pipeline, and the hot end of the plate heat exchanger 20 is connected to the external chilled water network through a pipeline. The fan 10 is located at the top of the tower body, and the filler combination module includes three vertical fillers 41 arranged at equal intervals, and anti-drifting water transverse fillers 42, and the transverse fillers 42 are located above the vertical fillers 41. The fan 10, the pre-cooling water pump 70, and the cooling water pump 80 are electrically connected to the controller.

[0015] The utility model cooling tower is mainly composed of a fan, a water distributor, eight fillers, a precooling surface cooler, a water receiving box, a precooling water pump, a cooling water pump, and a plate heat exchanger. Along the airflow direction, it is a precooling surface cooler + hollow area + 100mm thick filler + 100mm thick water-spraying hollow area + 100mm thick filler + 100mm thick water-spraying hollow area + 100mm thick filler, three 100mm thick fillers, and a 500mm wide filler on top. The high-temperature cooling water is evenly distributed to the top of the filler through the water distributor. Under the action of gravity and capillary force, the water evenly wets the upper filler and then sprinkles on the filler area below; when the air intake of the cooling tower passes through the precooling surface cooler and other wet cooling, it exchanges heat and mass with the cooling water in the filler and the hollow water-spraying area. The air after heat exchange is discharged to the atmosphere by the fan, and the high-temperature cooling water is reduced in temperature after a series of evaporation and heat transfer, and flows to the water receiving box at the bottom of the filler, and then is circulated by the cooling water pump.

[0016] The arrangement of packing affects the flow of air, and thus the performance of the evaporative cooling system. By arranging the corrugated packing in a staggered manner and leaving a certain gap between the packings, the maximum flow flux of the air can be increased by 30% and the air resistance can be effectively reduced.

[0017] Compared with 500mm conventional integral filler, the cooling efficiency of 500mm thick multi-layered filler is slightly lower, but the pressure drop on the air side is smaller, so it can reduce ventilation resistance while meeting cooling requirements, save costs, and has good economy. Due to the increase of the hollow water sprinkling area, the gravity of the water can ease the incoming wind, prolong the contact time between air and cooling water, and effectively reduce the phenomenon of water floating in the cooling tower.

[0018] The controller of the cooling tower detects the water temperature of the water receiving tank. If the water temperature is less than the ambient dry-bulb temperature, the pre-cooling water pump is turned on, and the load of the pre-cooling water pump and the fan is adjusted by detecting the cooling water outlet temperature. If the water temperature is greater than or equal to the ambient dry-bulb temperature, the pre-cooling water pump is turned off and only the fan load is adjusted.

[0019] In order to reduce the wind resistance between the fillers while ensuring the cooling effect, preferably, the thickness of the vertical fillers is equal to the spacing between the vertical fillers. The spacing between the fillers is equal to the thickness of the fillers themselves, which is also in line with the original overall filler thickness design.

[0020] In order to reduce the wind resistance between the fillers while ensuring the cooling effect, preferably, the sum of the thickness of the vertical filler and the spacing between the vertical fillers is equal to the width of the horizontal filler. The thickness of the three fillers plus the two space spacings is consistent with the original filler thickness, which is consistent with the original overall filler thickness design.

[0021] In order to cover the water splashing from the filling area below and prevent water from scooping up, preferably, the thickness of the horizontal filling is equal to the thickness of the vertical filling.

[0022] After the water distributor sprays the upper filler, the water flows from the upper filler to the lower filler. The flow of cooling water flowing out of the upper filler is reduced, and the water distribution is more uniform.

[0023] Compared with the prior art, the beneficial effect of the utility model lies in: by designing the conventional 500mm thick filler into a module of 100mm thick filler + 100mm thick water-spraying hollow area + 100mm thick filler + 100mm thick water-spraying hollow area + 100mm thick filler, while meeting the cooling effect, the wind resistance is reduced, and the 200mm thick filler is reduced, which effectively saves costs and has good economic benefits.

[0024] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0025] The above embodiments only express the preferred implementation of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A cooling tower with large air volume, characterized in that: The tower body comprises a tower body, a fan, a plate heat exchanger, a water distributor symmetrically arranged inside the tower body, a filler assembly module, a water receiving box, a precooling surface cooler, a precooling water pump, a cooling water pump and a controller. The precooling surface cooler is located at the air inlets on both sides of the tower body, the filler assembly module is located behind the precooling surface cooler in the air inlet direction, the water distributor is located above the filler assembly module, the water outlet of the precooling surface cooler is connected to the water distributor through a pipeline, the water inlet of the precooling surface cooler is connected to the water outlet end of the precooling water pump through a pipeline, and the water inlet end of the precooling water pump is connected to the water receiving box through a pipeline. The water inlet of the cooling water pump is connected with the water receiving tank through a pipeline, the water outlet of the cooling water pump is connected with the cold end inlet of the plate heat exchanger through a pipeline, the cold end outlet of the plate heat exchanger is connected with the water distributor through a pipeline, the hot end of the plate heat exchanger is connected with the external chilled water network through a pipeline, the fan is located at the top of the tower body, the filler combination module includes three vertical fillers arranged at equal intervals, and anti-drifting water transverse fillers, the transverse fillers are located above the vertical fillers, and the fan, the precooling water pump, the cooling water pump and the controller are electrically connected.

2. The cooling tower with large air volume as claimed in claim 1, characterized in that: The thickness of the vertical filler is equal to the spacing between the vertical fillers.

3. The cooling tower with large air volume as claimed in claim 2, characterized in that: The sum of the thickness of the vertical filler and the spacing between the vertical fillers is equal to the width of the horizontal filler.

4. The cooling tower with large air volume as claimed in claim 3, characterized in that: The thickness of the transverse filler is equal to the thickness of the vertical filler.

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