Cooling tower equipped with cleaning device and system

Abstract

The utility model relates to the technical field of cooling towers, and provides a cooling tower carrying a cleaning device and a system, the cooling tower comprises: a tower body, the tower body is filled with a filler layer; the spraying mechanism is arranged above the filler layer; the settling pond is suitable for loading cleaning liquid dissolved with cleaning agents, a sewage inlet of the settling pond is connected with the bottom of the tower body, and a cleaning liquid outlet of the settling pond is connected with the spraying mechanism; and the circulating pump is connected between the sedimentation tank and the spraying mechanism and is suitable for pumping the cleaning liquid in the sedimentation tank to the spraying mechanism to spray and clean the filler layer. According to the scheme provided by the invention, the filler does not need to be disassembled and cleaned, and the operation is convenient, so that the convenience of filler cleaning is improved, and the manual cleaning cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of cooling tower, especially to a cooling tower and system with cleaning device. BACKGROUND

[0002] Cooling tower is a device that uses water as a circulating coolant to absorb heat from the system and discharge to the atmosphere to reduce water temperature. The cooling tower usually includes a tower body and a filler filled in the tower body. The filler can increase the heat exchange area, prolong the residence time of cooling water and improve the uniformity of water distribution, thereby increasing the heat exchange capacity.

[0003] During long-term use of the cooling tower, cooling water precipitates will adhere to the surface of the filler, affecting its heat exchange capacity, resulting in reduced heat exchange effect of the cooling tower and increased energy consumption. Therefore, in the related art, the filler needs to be regularly disassembled and cleaned to ensure the heat exchange effect of the cooling tower.

[0004] However, in the above-mentioned related art, the disassembly and cleaning process of the filler is relatively complex, and the manual cleaning cost is high. Therefore, how to conveniently clean the filler and reduce the cleaning cost has become an important issue to be solved. UTILITY MODEL CONTENTS

[0005] The utility model provides a cooling tower and system with cleaning device to solve the defects of complex disassembly and cleaning process of the filler in the prior art, high manual cleaning cost, convenient cleaning of the filler and reduction of cleaning cost.

[0006] The utility model provides a cooling tower with cleaning device, comprising:

[0007] The tower body is filled with a filler layer;

[0008] The spray mechanism is arranged above the filler layer;

[0009] The sedimentation tank is suitable for loading cleaning liquid with dissolved cleaning agent. The sewage inlet of the sedimentation tank is connected with the bottom of the tower body, and the cleaning liquid outlet is connected with the spray mechanism.

[0010] The circulating pump is connected between the sedimentation tank and the spray mechanism, and is suitable for pumping the cleaning liquid in the sedimentation tank to the spray mechanism for spray cleaning of the filler layer.

[0011] According to the cooling tower with cleaning device provided by the utility model, the filtering mechanism for filtering the sludge in the sedimentation tank is further included.

[0012] The cooling tower provided by the utility model is provided with a cleaning device, the filter mechanism comprises a filter press, a sludge outlet of the sedimentation tank is connected with a feeding inlet of the filter press, and a filtrate outlet of the filter press is connected with a clean water inlet of the sedimentation tank.

[0013] The cooling tower provided by the utility model is provided with a cleaning device, a hot water inlet is arranged on the tower body, the hot water inlet is communicated with the spraying mechanism, and a hot water inlet pipe is connected to the hot water inlet.

[0014] The cooling tower provided by the utility model is provided with a cleaning device, a cleaning liquid outlet of the sedimentation tank is connected with the hot water inlet through a first branch, and a sewage inlet of the sedimentation tank is connected with the cold water outlet through a second branch.

[0015] The cooling tower provided by the utility model is provided with a cleaning device, a first valve and a first drain valve are connected to the first branch, and a second valve and a second drain valve are connected to the second branch.

[0016] The cooling tower provided by the utility model is provided with a cleaning device, a first control valve is connected to the hot water inlet pipe, and a second control valve is connected to the cold water outlet pipe.

[0017] The cooling tower provided by the utility model is provided with a cleaning device, the tower body is provided with at least one.

[0018] The utility model also provides a cooling tower system which comprises the cooling tower.

[0019] The cooling tower system provided by the utility model is provided with at least two groups of cooling towers, and comprises a water inlet main pipe and a water outlet main pipe, the water inlet main pipe is communicated with hot water inlet pipes of the cooling towers, and the water outlet main pipe is communicated with cold water outlet pipes of the cooling towers.

[0020] The cooling tower and system provided by the utility model are provided with a cleaning device, after the cooling tower is used for a long time, in order to reduce the influence of the precipitated matter on the heat exchange capacity of the filler, the circulating pump is started, the circulating pump extracts the cleaning liquid in the sedimentation tank to the spraying mechanism, the spraying mechanism sprays and cleans the filler layer, the precipitated matter adhered to the surface of the filler is washed off under the action of the cleaning agent, the sewage after cleaning falls into the bottom of the tower body and returns to the sedimentation tank through the sewage inlet of the sedimentation tank, and the above-mentioned circulation cleaning is carried out until the precipitated matter on the surface of the filler is washed off. Compared with the related art, the filler does not need to be disassembled and cleaned, and the operation is convenient, so that the convenience of the filler cleaning is improved, and the artificial cleaning cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0022] Figure 1 It is a structural schematic diagram of the cooling tower provided by the present application, which is provided with a cleaning device.

[0023] Reference signs:

[0024] 10, tower body; 11, filler layer; 12, spraying mechanism; 13, sedimentation tank; 14, circulating pump; 15, filtering mechanism; 16, hot water inlet pipe; 160, first control valve; 17, cold water outlet pipe; 170, second control valve; 18, first branch; 180, first valve; 19, second branch; 190, second valve; 20, water inlet main pipe; 21, water outlet main pipe. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present application more clear, the following will combine the drawings in the present application to clearly and completely describe the technical solutions in the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0026] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the embodiments of the present application. In the present application, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0027] In order to facilitate the understanding of the cooling tower and system provided by the present application, which is provided with a cleaning device, first, the application background is introduced. The cooling tower is a device that uses water as a circulating coolant to absorb heat from the system and discharge to the atmosphere to reduce the water temperature. The filler is an important component of the cooling tower, which directly affects the cooling efficiency of the cooling tower.

[0028] During long-term use of the cooling tower, the cooling water precipitates adhere to the surface of the filler to affect the heat exchange capacity thereof, resulting in reduced heat exchange effect of the cooling tower and increased energy consumption. Therefore, in the related art, the filler needs to be periodically disassembled and washed to ensure the heat exchange effect of the cooling tower.

[0029] However, in the related art, the disassembling and washing process of the filler is relatively complex, and the manual cleaning cost is high. Therefore, how to conveniently clean the filler and reduce the cleaning cost has become an important issue to be solved at present.

[0030] Based on the above problems, the utility model embodiment provides a cooling tower and system carrying a cleaning device, which can conveniently clean the filler and reduce the cleaning cost.

[0031] The cooling tower and system carrying the cleaning device of the utility model will be described below. Figure 1 The cooling tower and system carrying the cleaning device of the utility model will be described below.

[0032] Referring to Figure 1 A cooling tower carrying a cleaning device, comprising a tower body 10, a spraying mechanism 12, a sedimentation tank 13 and a circulating pump 14; wherein the tower body 10 is filled with a filler layer 11; the spraying mechanism 12 is arranged above the filler layer 11; the sedimentation tank 13 is suitable for loading a cleaning liquid in which a cleaning agent is dissolved, the sewage inlet of the sedimentation tank 13 is connected with the bottom of the tower body 10, and the cleaning liquid outlet is connected with the spraying mechanism 12; the circulating pump 14 is connected between the sedimentation tank 13 and the spraying mechanism 12, and is used for pumping the cleaning liquid in the sedimentation tank 13 to the spraying mechanism 12 to spray and clean the filler layer 11.

[0033] In one specific application scenario, when the cooling tower is used for a long time, in order to reduce the influence of the precipitates on the heat exchange capacity of the filler, the circulating pump 14 is started, the circulating pump 14 pumps the cleaning liquid in the sedimentation tank 13 to the spraying mechanism 12, the spraying mechanism 12 sprays and cleans the filler layer 11, the precipitates adhering to the surface of the filler are washed off under the action of the cleaning agent, the cleaned sewage falls into the bottom of the tower body 10 and returns to the sedimentation tank 13 through the sewage inlet of the sedimentation tank 13, and the above-mentioned circulation cleaning is performed until the precipitates on the surface of the filler are washed off. Compared with the related art, the filler does not need to be disassembled and washed, and the operation is convenient, thereby improving the convenience of cleaning the filler and reducing the manual cleaning cost.

[0034] In order to be able to recycle the cleaning liquid in the sedimentation tank 13, the cooling tower further comprises a filtering mechanism 15 for filtering the sludge in the sedimentation tank 13.

[0035] It should be noted that one important role of the sedimentation tank 13 is for the sedimentation of sewage, after the cleaning of the filler layer 11 is completed, the cleaned sewage is enriched in the sedimentation tank 13, the larger particles in the sewage are naturally settled to the bottom of the sedimentation tank 13 under the action of gravity, and the smaller suspended particles are also settled to the bottom of the sedimentation tank 13 under the action of the flocculating agent and other medicaments, in addition, some neutralizing medicaments can be added to make the ions in the sewage settle. The specific structure of the sedimentation tank 13 and the sedimentation process of the sludge can refer to the prior art, for example, the sedimentation tank 13 can adopt a three-stage sedimentation tank including a primary sedimentation tank, a secondary sedimentation tank 13 and a clear water tank, and the medicaments required for the sedimentation process can also be flexibly configured according to the actual working conditions, which will not be described in detail in the embodiment of the present application.

[0036] The particles are settled in the sedimentation tank 13 to form sludge at the bottom of the sedimentation tank 13, and the filtering mechanism 15 is used to filter the sludge at the bottom of the sedimentation tank 13. According to different working principles, the filtering mechanism 15 has many different types, which can be selected according to actual needs.

[0037] In the embodiment of the present application, the filtering mechanism 15 adopts a filter press, the feed inlet of the filter press is connected with the sludge outlet of the sedimentation tank 13, and the filtrate outlet of the filter press is connected to the clear water inlet of the sedimentation tank 13. Specifically, the sludge at the bottom of the sedimentation tank 13 can be pumped to the filter press by a submersible sludge pump, and after being filtered by the filter press, the mud and sand are compressed into mud cakes, and the filtrate returns to the sedimentation tank 13 through the clear water inlet of the sedimentation tank 13 for recycling. The specific structure and working principle of the filter press can refer to the prior art, which will not be described in detail in the embodiment of the present application.

[0038] In one specific embodiment of the present application, a hot water inlet is arranged on the tower body 10, the hot water inlet is communicated with the spraying mechanism 12, a hot water inlet pipe 16 is connected to the hot water inlet, hot cooling water enters the spraying mechanism 12 through the hot water inlet pipe 16, the spraying mechanism 12 sprays the hot cooling water onto the filler layer 11, the hot cooling water is fully contacted and heat exchanged with the external air on the filler layer 11 to form relatively cold cooling water and fall into the bottom of the tower body 10, a cold water outlet is arranged at the bottom of the tower body 10, a cold water outlet pipe 17 is connected to the cold water outlet, and the relatively cold cooling water is discharged through the cold water outlet pipe 17. In this way, the spraying mechanism 12 can be used as a spraying component of the cleaning liquid and a spraying component of the cooling water, which reduces the layout cost of the pipeline, and in addition, when the above-mentioned cleaning structure is installed on the existing tower body 10, only the cleaning liquid outlet of the sedimentation tank 13 needs to be connected with the existing spraying mechanism 12, without changing the original pipeline layout.

[0039] In one embodiment of the utility model, the cleaning liquid outlet of the sedimentation tank 13 is connected to the hot water inlet through a first branch 18, and the sewage inlet of the sedimentation tank 13 is connected to the cold water outlet at the bottom of the tower body 10 through a second branch 19. When cleaning work is performed, the cleaning liquid enters the spraying mechanism 12 through the first branch 18, the spraying mechanism 12 sprays the cleaning liquid onto the filler layer 11 to clean the filler layer 11, the sewage after cleaning is discharged through the cold water outlet at the bottom of the tower body 10, and is returned to the sedimentation tank 13 through the second branch 19.

[0040] In one embodiment of the utility model, a first valve 180 and a first drain valve are connected to the first branch 18, and a second valve 190 and a second drain valve are connected to the second branch 19. The first valve 180 is used to control the on-off of the first branch 18, and the first drain valve is used to empty the cleaning liquid in the pipeline; the second valve 190 is used to control the on-off of the second branch 19, and the second drain valve is used to empty the cleaning liquid in the pipeline. When cleaning work is performed, the first valve 180 and the second valve 190 are opened, the first valve 180 and the second valve 190 are closed after the cleaning work is completed, and the first drain valve and the second drain valve are opened to empty the cleaning liquid in the pipeline.

[0041] In one embodiment of the utility model, a first control valve 160 is connected to the hot water inlet pipe 16 for controlling the on-off of the hot water inlet pipe 16; and a second control valve 170 is connected to the cold water outlet pipe 17 for controlling the on-off of the cold water outlet pipe 17. When cleaning work is performed, the first control valve 160 and the second control valve 170 are closed to isolate the cooling water from the cleaning liquid, the first valve 180 and the second valve 190 are opened, and the cleaning liquid is extracted under the action of the circulating pump 14 to perform cyclic cleaning on the filler layer 11; after the cleaning work is completed, the first control valve 160 and the second control valve 170 are opened, and the first valve 180 and the second valve 190 are closed to cool the cooling water.

[0042] In one embodiment of the utility model, the tower body 10 is provided with at least one, when the tower body 10 is provided with two or more, the hot water inlets on the plurality of tower bodies 10 can be connected in series, and the cleaning liquid or hot cooling water can enter the spraying mechanisms 12 in the plurality of tower bodies 10 in turn; in addition, the hot water inlets on the plurality of tower bodies 10 can also be connected in parallel through a distribution pipe, and the cleaning liquid or hot cooling water enters the spraying mechanisms 12 in the plurality of tower bodies 10 after being distributed through the distribution pipe.

[0043] Specifically, the cold water outlets at the bottoms of the plurality of tower bodies 10 are connected in parallel through a collecting pipe, the cooling water discharged through the cold water outlets is collected through the collecting pipe and then enters the cold water outlet pipe 17, and the cleaning sewage discharged through the cold water outlets is collected through the collecting pipe and then enters the second branch 19.

[0044] It should be noted that the above does not include all the structures or components of the cooling tower, in order to achieve the cooling function of the cooling tower, it can also include other structures or components, such as fan, water baffle, air inlet louver or grid, air guide device and various valves, etc., can be referred to the prior art, because the other structures or components of the cooling tower is not the main point of the present application, and the other structures or components of the cooling tower are not changed in the embodiment of the present application, therefore, for the other structures or components of the cooling tower, the embodiment of the present application is not enumerated again.

[0045] The cooling tower system provided by the present application is described below, and the cooling tower system described below can be correspondingly referred to the cooling tower described above.

[0046] Referring to Figure 1 A cooling tower system comprising the cooling tower described above.

[0047] Specifically, the cooling tower with the above structure is provided with at least two groups; further comprising a water inlet main pipe 20 and a water outlet main pipe 21, the water inlet main pipe 20 being communicated with the hot water inlet pipes 16 of the plurality of cooling towers, and the water outlet main pipe 21 being communicated with the cold water outlet pipes 17 of the plurality of cooling towers.

[0048] The new point of the present application is that: when the cooling tower is used for a long time, in order to reduce the influence of the precipitate on the heat exchange capacity of the filler, the circulating pump 14 is started, the circulating pump 14 draws the cleaning liquid in the sedimentation tank 13 to the spraying mechanism 12, the spraying mechanism 12 sprays and cleans the filler layer 11, the precipitate attached to the surface of the filler is washed off under the action of the cleaning agent, the cleaned sewage falls into the bottom of the tower body 10 and returns to the sedimentation tank 13 through the sewage inlet of the sedimentation tank 13, and the above-mentioned circulation cleaning is carried out until the precipitate on the surface of the filler is washed off. Compared with the related art, the filler does not need to be disassembled and cleaned, and the operation is convenient, thereby improving the convenience of the filler cleaning and reducing the cost of manual cleaning.

[0049] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A cooling tower equipped with a cleaning device, characterized by comprising: The application relates to a cooling tower. The cooling tower comprises a tower body (10) filled with a filler layer (11), a spraying mechanism (12) arranged above the filler layer (11), a sedimentation tank (13) adapted to load cleaning liquid with cleaning agents dissolved therein, a sewage inlet of the sedimentation tank (13) connected with the bottom of the tower body (10), a cleaning liquid outlet connected with the spraying mechanism (12), a circulating pump (14) connected between the sedimentation tank (13) and the spraying mechanism (12) and adapted to pump the cleaning liquid in the sedimentation tank (13) to the spraying mechanism (12) to spray and clean the filler layer (11), a hot water inlet arranged on the tower body (10) and communicated with the spraying mechanism (12), a hot water inlet pipe (16) connected with the hot water inlet, a cold water outlet arranged at the bottom of the tower body (10), a cold water outlet pipe (17) connected with the cold water outlet, the cleaning liquid outlet of the sedimentation tank (13) connected with the hot water inlet through a first branch (18), the sewage inlet of the sedimentation tank (13) connected with the cold water outlet through a second branch (19), the first branch (18) connected with a first valve (180) and a first drain valve, the second branch (19) connected with a second valve (190) and a second drain valve, the hot water inlet pipe (16) connected with a first control valve (160), and the cold water outlet pipe (17) connected with a second control valve (170). The application further comprises a filtering mechanism (15) for filtering sludge in the sedimentation tank (13). The filtering mechanism (15) comprises a filter press, a feed inlet of the filter press connected with a sludge outlet of the sedimentation tank (13), and a filtrate outlet of the filter press connected with a clean water inlet of the sedimentation tank (13). The tower body (10) is provided with at least one. The application relates to a cooling tower. The cooling tower is provided with at least two groups, and further comprises a water inlet main pipe (20) communicated with hot water inlet pipes (16) of multiple cooling towers and a water outlet main pipe (21) communicated with cold water outlet pipes (17) of the multiple cooling towers. ​ 2. The cooling tower with a cleaning device according to claim 1, characterized in that ​ 3. The cooling tower with a cleaning device according to claim 2, characterized in that ​ 4. The cooling tower with a cleaning device according to any one of claims 1 to 3, characterized in that ​ 5. A cooling tower system characterized by, ​ 6. The cooling tower system of claim 5, wherein, ​

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