Cleaning test device

Abstract

The utility model relates to the technical field of cooling tower cleaning test, and discloses a cleaning test device which comprises a water supply assembly, a water supply pipeline, a water return pipeline and a filtering structure, the water supply pipeline is communicated with a water outlet of the water supply assembly and a water inlet of a cooling tower, and the water return pipeline is communicated with the water inlet of the water supply assembly and the water outlet of the cooling tower; the filtering structure at least comprises two filters, the two filters are arranged on the water supply pipeline and the water return pipeline respectively, and the filters are used for filtering foreign matters in liquid. Liquid in the water supply assembly enters the cooling tower through the water supply pipeline under the action of the circulating pump of the cooling tower and then flows back into the water supply assembly through the water return pipeline to form circulation, so that the liquid can bring out foreign matters such as metal impurities and oil stains in the cooling tower, and the cooling tower can meet the heat dissipation capability requirement when leaving a factory; and liquid can be recycled, the cleaning requirement of the cooling tower can be met, and energy conservation and environment protection are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling tower cleaning tests, in particular to a cleaning test device. Background Art

[0002] With the rapid development of the rail transit industry, higher requirements are placed on the cooling system of rail vehicles. The cooling effect of the cooling tower directly affects the operating status of rail vehicles and has an important impact on the safety of rail vehicle operation.

[0003] For the cooling towers currently manufactured, whether they are plate-fin or tube-fin radiators, it is inevitable that foreign matter will be mixed in their cooling pipes during the production process. When the cooling pipes in the radiator are filled with liquid, as the liquid keeps flowing in the pipes, impurities in the liquid, residual foreign matter in the pipes... will accumulate at the corners of the pipes, which will affect the flow of the pipe liquid over time, thereby affecting the cooling effect of the cooling tower. Therefore, the cooling towers produced must be cleaned and tested to test the performance of the cooling tower.

[0004] In the prior art, two sewage pipes are arranged, which are respectively connected between the cooling tower and the outlet pipe and between the cooling tower and the inlet pipe, to discharge the dirt in the flushing inlet pipe and the dirt in the return pipe, thereby reducing the resistance of the system, improving the heat exchange efficiency of the main engine, and improving the operating efficiency of the system. However, this technical solution consumes a large amount of water resources, which is not conducive to energy conservation and environmental protection.

[0005] Therefore, it is necessary to provide a new cleaning test device to solve the above technical problems. Utility Model Content

[0006] The main purpose of the utility model is to provide an energy-saving and environment-friendly cleaning test device.

[0007] To achieve the above-mentioned purpose, the cleaning test device proposed in the utility model includes a water supply component, a water supply pipeline, a return pipeline and a filtering structure, the water supply pipeline connects the water outlet of the water supply component with the water inlet of the cooling tower, the return pipeline connects the water inlet of the water supply component with the water outlet of the cooling tower; the filtering structure includes at least two filters, the two filters are respectively arranged on the water supply pipeline and the return pipeline, and the filters are used to filter foreign matter in the liquid.

[0008] Optionally, the water supply assembly includes a water tank and a water supply pump, the water supply pump is arranged on the water tank, and the water inlet of the water supply pump is connected to the water tank; the return water pipeline includes a return water pipe, a first valve and a second valve, the first end of the return water pipe is connected to the water inlet of the cooling tower, and the second end forms a first branch and a second branch, the first branch is connected to the water tank, and the second branch is connected to the water supply pump, the first valve is arranged on the first branch, and the second valve is arranged on the second branch.

[0009] Optionally, the return water pipeline further includes a flow meter and a pressure sensor which are sequentially arranged on the first branch, the flow meter is used to detect the liquid flow in the first branch, and the pressure sensor is used to detect the liquid pressure in the first branch.

[0010] Optionally, the cleaning test device further includes a drain pump and a drain pipe, wherein the drain pipe connects the drain outlet of the cooling tower and the water tank, and the drain pump is disposed on the drain pipe, and the drain pump can draw liquid in the cooling tower into the water tank through the drain pipe.

[0011] Optionally, the cleaning test device also includes a first bracket and a second bracket located between the cooling tower and the cleaning test device, the water supply pipeline is supported on the first bracket, and the return pipe is supported on the second bracket; the water supply pipeline includes a low-level section and a high-level section that are connected, and the connecting point between the low-level section and the high-level section is arranged on the first bracket, the low-level section is connected to the water outlet of the water tank, and the high-level section is connected to the water inlet of the cooling tower.

[0012] Optionally, the return water pipeline further includes a third valve and a connecting pipe, the third valve is arranged on the first branch, the connecting pipe connects the first branch and the second branch, and the connecting pipe is located between the first valve and the third valve.

[0013] Optionally, a fourth valve is provided on the water supply pipeline, and the first valve, the second valve, the third valve and the fourth valve are all solenoid valves; and the filter is a Y-type filter.

[0014] Optionally, the cleaning test device also includes a test control module, which includes a control cabinet, an operating table and a printer. The control cabinet is arranged adjacent to the water tank, and the first valve, the second valve, the third valve, the fourth valve, the flow meter and the pressure sensor are all electrically connected to the control cabinet. The operating table is electrically connected to the control cabinet. The operating table is used to record data received by the control cabinet and issue instructions to the control cabinet, and the printer is electrically connected to the operating table.

[0015] In the technical solution of the utility model, when the cooling tower is cleaned, the water supply component is first started to supply water to the cooling tower. When the liquid fills the cooling tower, the water supply component is closed, and then the circulating pump of the cooling tower is started. The liquid in the water supply component enters the cooling tower through the water supply pipeline under the action of the circulating pump of the cooling tower, and then flows back to the water supply component through the return pipeline to form a cycle. After the circulating pump of the cooling tower is started, the cycle is repeated many times, so that the liquid can take out foreign matter such as metal impurities and oil stains in the cooling tower, ensuring that the liquid pressure in the cooling tower is in a normal working state, and ensuring that the cooling tower meets the cooling tower heat dissipation capacity requirements when leaving the factory. Filters are provided on both the water supply pipeline and the return pipeline. The filters can filter foreign matter brought out by the liquid from the cooling tower or the water supply component. The operator can judge whether to stop the test based on the visible solid particles on the filter element in the filter, which can not only realize the recycling of the liquid, but also meet the cleaning requirements of the cooling tower, which is beneficial to energy saving and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the structure of the cleaning test device in the embodiment of the utility model;

[0018] Figure 2 It is a partial structural schematic diagram of the cleaning test device in the embodiment of the utility model.

[0019] Description of Figure Numbers:

[0020] 1 Water supply assembly, 1.1 Water tank, 1.2 Water supply pump, 2 Water supply pipeline, 2.11 Low section, 2.12 High section, 2.2 Fourth valve, 3 Return pipeline, 3.1 Return pipeline, 3.111 First branch, 3.112 Second branch, 3.2 First valve, 3.3 Second valve, 3.4 Flow meter, 3.5 Pressure sensor, 3.6 Third valve, 3.7 Connecting pipeline, 4 Filter, 5 Drainage pipeline, 6 Drainage pump, 7 First bracket, 8 Second bracket, 9 Test control module, 9.1 Control cabinet, 9.2 Operating table, 9.3 Printer, 10 Cooling tower.

[0021] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered by the claims.

[0023] The utility model provides an energy-saving and environment-friendly cleaning test device.

[0024] like Figure 1 and Figure 2 As shown, the cleaning test device includes a water supply component 1, a water supply pipeline 2, a return pipeline 3 and a filtering structure. The water supply pipeline 2 connects the water outlet of the water supply component 1 with the water inlet of the cooling tower 10, and the return pipeline 3 connects the water inlet of the water supply component 1 with the water outlet of the cooling tower 10; the filtering structure includes at least two filters 4, and the two filters 4 are respectively arranged on the water supply pipeline 2 and the return pipeline 3, and the filters 4 are used to filter foreign matter in the liquid. When the cooling tower 10 is subjected to a cleaning test, the water supply component 1 is first started to supply water to the cooling tower. When the cooling tower 10 is filled with liquid, the water supply component 1 is closed, and then the circulating pump of the cooling tower 10 is started. The liquid in the water supply component 1 enters the cooling tower 10 through the water supply pipe 2 under the action of the circulating pump of the cooling tower 10, and then flows back to the water supply component 1 through the return pipe 3 to form a cycle. After the circulating pump of the cooling tower 10 is started, the cycle is repeated many times, so that the liquid can bring out foreign objects such as metal impurities and oil stains in the cooling tower 10, thereby ensuring that the liquid pressure in the cooling tower 10 is in a normal working state and ensuring that the cooling tower 10 meets the heat dissipation capacity requirements of the cooling tower 10 when leaving the factory. And filters 4 are provided on the water supply pipeline 2 and the return pipeline 3. When the liquid flows through the water supply pipeline 2 and the return pipeline 3, it will pass through the corresponding filter 4. The filter 4 can filter the foreign matter brought out of the liquid from the cooling tower 10 or the water supply component 1. The operator can judge whether to stop the test based on the visible solid particles on the filter element in the filter 4. It can not only realize the recycling of the liquid, but also meet the cleaning needs of the cooling tower 10, which is beneficial to energy saving and environmental protection.

[0025] Based on the above embodiment, the water supply assembly 1 includes a water tank 1.1 and a water supply pump 1.2, the water supply pump 1.2 is arranged on the water tank 1.1, and the water inlet of the water supply pump 1.2 is connected to the water tank 1.1; the return water pipeline 3 includes a return water pipe 3.1, a first valve 3.2 and a second valve 3.3, the first end of the return water pipe 3.1 is connected to the water inlet of the cooling tower 10, and the second end forms a first branch 3.111 and a second branch 3.112, the first branch 3.111 is connected to the water tank 1.1, and the second branch 3.112 is connected to the water supply pump 1.2, the first valve 3.2 is arranged on the first branch 3.111, and the second valve 3.3 is arranged on the second branch 3.112. Before the cleaning test, the first valve 3.2 is powered off, the second valve 3.3 is powered on, and the water supply pump 1.2 is started to transport the liquid in the water tank 1.1 to the cooling tower 10 through the second branch 3.112 of the return pipe 3.1. When the liquid level in the water tank 1.1 is observed to be less than 200mm, the liquid in the cooling tower 10 is full, and the water supply pump 1.2 can be turned off; after the liquid in the cooling tower 10 is full, the first valve 3.2 is powered on, the second valve 3.3 is powered off, and the circulation pump of the cooling tower 10 is started. The circulation pump of the cooling tower 10 is pumped through the water supply pipe 3.1. The liquid in the water tank 1.1 is extracted through the first branch 3.111, and the liquid in the cooling tower 10 flows back to the water tank 1.1 through the first branch 3.111. At the same time, the liquid can take out the foreign matter in the cooling tower 10. When the running time of the circulating pump of the cooling tower 10 reaches the time specified by the process, the operator disassembles the filter 4 and takes out the filter element. If the visible fixed particles on the filter element do not exceed the visible solid particles required by the process document, the test can be stopped. Otherwise, the filter needs to be cleaned and then installed back on the filter 4, and then the circulating pump is started to continue the cleaning test. The switching of the first branch 3.111 and the second branch 3.112 on the return pipe 3.1 is achieved by controlling the power on and off of the first valve 3.2 and the second valve 3.3, so that the liquid can flow back to the water tank 1.1 during the cleaning test without passing through the water supply pump 1.2, thereby meeting the actual operation requirements.

[0026] Preferably, a filter 4 is provided at one end of the first branch 3.111 close to the water tank 1.1, so that the liquid is filtered once more before flowing back to the water tank 1.1, thereby enhancing the filtering effect.

[0027] Furthermore, the return water pipeline 3 further includes a flow meter 3.4 and a pressure sensor 3.5 which are sequentially arranged on the first branch 3.111, the flow meter 3.4 is used to detect the liquid flow in the first branch 3.111, and the pressure sensor 3.5 is used to detect the liquid pressure in the first branch 3.111. In the cleaning test, the operator judges whether the cleaning test of the radiator of the cooling tower 10 of the test object is qualified according to the requirements of the process documents and by comparing the flow and pressure detected by the flow meter 3.4 and the pressure sensor 3.5. The operation is simple and the judgment is quick, which is conducive to improving the test efficiency.

[0028] In one embodiment, the cleaning test device further includes a drainage pump 6 and a drainage pipe 5, wherein the drainage pipe 5 is connected to the drainage port of the cooling tower 10 and the water tank 1.1, and the drainage pump 6 is arranged on the drainage pipe 5, and the drainage pump 6 can extract the liquid in the cooling tower 10 into the water tank 1.1 through the drainage pipe 5. After the cleaning test is completed, the drainage pump 6 is started, and the drainage pump 6 extracts the liquid in the cooling tower 10 into the water tank 1.1 through the drainage pipe 5 to ensure that the cooling tower 10 does not contain liquid when it leaves the factory, which is convenient for transportation. Preferably, the drainage pipe 5 is connected to the drainage port of the cooling tower 10 and the return water pipeline 3.

[0029] In one embodiment, the cleaning test device also includes a first bracket 7 and a second bracket 8 located between the cooling tower 10 and the cleaning test device, the water supply pipeline 2 is supported on the first bracket 7, and the return pipe 3.1 is supported on the second bracket 8; the water supply pipeline 2 includes a low-level section 2.11 and a high-level section 2.12 that are connected, and the connecting point between the low-level section 2.11 and the high-level section 2.12 is set on the first bracket 7, the low-level section 2.11 is connected to the water outlet of the water tank 1.1, and the high-level section 2.12 is connected to the water inlet of the cooling tower 10. The water supply pipe 2 and the return pipe 3 are supported on the first bracket 7 and the second bracket 8 respectively, so as to be connected with the water inlet and the water outlet of the cooling tower 10 respectively, and it is also convenient to replace the next cooling tower 10 to be tested after completing the cleaning test of the cooling tower 10. The liquid is injected into the cooling tower 10 from the high section 2.12 of the water supply pipe 2, which is beneficial to enhance the potential energy of the liquid, thereby being able to wash down foreign matter attached to it and improve the cleaning performance.

[0030] In one embodiment, the return pipe 3 further includes a third valve 3.6 and a connecting pipe 3.7. The third valve 3.6 is arranged on the first branch 3.111. The connecting pipe 3.7 connects the first branch 3.111 and the second branch 3.112, and the connecting pipe 3.7 is located between the first valve 3.2 and the third valve 3.6. The connecting pipe 3.7 is arranged between the first branch 3.111 and the second branch 3.112 to strengthen the overall structure and improve the stability of the overall structure. During the cleaning test, the first valve 3.2 and the third valve 3.6 need to be energized, and the second valve 3.3 needs to be de-energized, so that the liquid flowing out of the cooling tower 10 flows back to the water tank 1.1 through the first branch 3.111.

[0031] In one embodiment, the water supply pipeline 2 is provided with a fourth valve 2.2, and the first valve 3.2, the second valve 3.3, the third valve 3.6 and the fourth valve 2.2 are all solenoid valves; the filter 4 is a Y-type filter. The use of solenoid valves facilitates precise control of each pipeline, saves manpower, and realizes intelligence. The filter 4 adopts a Y-type filter, which is convenient for operators to take and place the filter element and observe the visible solid particles on the filter element.

[0032] In addition, the cleaning test device also includes a test control module 9, which includes a control cabinet 9.1, an operating table 9.2 and a printer 9.3. The control cabinet 9.1 is arranged adjacent to the water tank 1.1. The first valve 3.2, the second valve 3.3, the third valve 3.6, the fourth valve 2.2, the flow meter 3.4 and the pressure sensor 3.5 are all electrically connected to the control cabinet 9.1. The operating table 9.2 is electrically connected to the control cabinet 9.1. The operating table 9.2 is used to record the data received by the control cabinet 9.1 and issue instructions to the control cabinet 9.1. The printer 9.3 is electrically connected to the operating table 9.2. The operator can fully control the entire cleaning test device through the operating table 9.2. According to different working states, the operator issues instructions through the operating table 9.2. The second control cabinet 9.1 controls the power-on and power-off states of each solenoid valve according to the instructions issued by the operating table 9.2, thereby connecting different pipelines. The flow meter 3.4 and the pressure transmitter transmit the detected data to the control cabinet 9.1. The operating table 9.2 can judge whether the cleaning test of the cooling tower 10 radiator of the test object is qualified according to the requirements of the process documents and by comparing the flow and pressure recorded during the test, thereby ensuring the normal operation of the cleaning test device.

[0033] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A cleaning test device for cleaning a cooling tower (10), characterized in that: The cleaning test device comprises a water supply component (1), a water supply pipeline (2), a return pipeline (3) and a filtering structure, wherein the water supply pipeline (2) connects the water outlet of the water supply component (1) with the water inlet of the cooling tower (10), and the return pipeline (3) connects the water inlet of the water supply component (1) with the water outlet of the cooling tower (10); the filtering structure comprises at least two filters (4), the two filters (4) are respectively arranged on the water supply pipeline (2) and the return pipeline (3), and the filters (4) are used to filter foreign matter in the liquid.

2. The cleaning test device according to claim 1, characterized in that: The water supply assembly (1) comprises a water tank (1.1) and a water supply pump (1.2); the water supply pump (1.2) is arranged on the water tank (1.1), and the water inlet of the water supply pump (1.2) is connected to the water tank (1.1); the return water pipeline (3) comprises a return water pipe (3.1), a first valve (3.2) and a second valve (3.3); the first end of the return water pipe (3.1) is connected to the water inlet of the cooling tower (10), and the second end forms a first branch (3.111) and a second branch (3.112); the first branch (3.111) is connected to the water tank (1.1), and the second branch (3.112) is connected to the water supply pump (1.2); the first valve (3.2) is arranged on the first branch (3.111), and the second valve (3.3) is arranged on the second branch (3.112).

3. The cleaning test device according to claim 2, characterized in that: The return water pipeline (3) further comprises a flow meter (3.4) and a pressure sensor (3.5) which are arranged in sequence on the first branch (3.111); the flow meter (3.4) is used to detect the liquid flow in the first branch (3.111); and the pressure sensor (3.5) is used to detect the liquid pressure in the first branch (3.111).

4. The cleaning test device according to claim 3, characterized in that: The cleaning test device further comprises a drainage pump (6) and a drainage pipe (5); the drainage pipe (5) is connected to a drainage outlet of the cooling tower (10) and the water tank (1.1); the drainage pump (6) is arranged on the drainage pipe (5); and the drainage pump (6) can extract liquid in the cooling tower (10) into the water tank (1.1) through the drainage pipe (5).

5. The cleaning test device according to claim 4, characterized in that: The cleaning test device further comprises a first bracket (7) and a second bracket (8) located between the cooling tower (10) and the cleaning test device, the water supply pipeline (2) being supported on the first bracket (7), and the return water pipeline (3.1) being supported on the second bracket (8); the water supply pipeline (2) comprising a low-position section (2.11) and a high-position section (2.12) being connected, the connection point between the low-position section (2.11) and the high-position section (2.12) being arranged on the first bracket (7), the low-position section (2.11) being connected to the water outlet of the water tank (1.1), and the high-position section (2.12) being connected to the water inlet of the cooling tower (10).

6. The cleaning test device according to any one of claims 3 to 5, characterized in that: The return water pipeline (3) further comprises a third valve (3.6) and a connecting pipe (3.7); the third valve (3.6) is arranged on the first branch (3.111); the connecting pipe (3.7) connects the first branch (3.111) and the second branch (3.112); and the connecting pipe (3.7) is located between the first valve (3.2) and the third valve (3.6).

7. The cleaning test device according to claim 6, characterized in that: The water supply pipeline (2) is provided with a fourth valve (2.2); the first valve (3.2), the second valve (3.3), the third valve (3.6) and the fourth valve (2.2) are all solenoid valves; and the filter (4) is a Y-type filter.

8. The cleaning test device according to claim 7, characterized in that: The cleaning test device further comprises a test control module (9), the test control module (9) comprising a control cabinet (9.1), an operating table (9.2) and a printer (9.3); the control cabinet (9.1) is arranged adjacent to the water tank (1.1); the first valve (3.2), the second valve (3.3), the third valve (3.6), the fourth valve (2.2), the flow meter (3.4) and the pressure sensor (3.5) are all electrically connected to the control cabinet (9.1); the operating table (9.2) is electrically connected to the control cabinet (9.1); the operating table (9.2) is used to record data received by the control cabinet (9.1) and issue instructions to the control cabinet (9.1); and the printer (9.3) is electrically connected to the operating table (9.2).

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