Cleaning and detecting device for radiating single section of internal combustion locomotive

Abstract

The utility model relates to the technical field of internal combustion locomotive operation, in particular to a cleaning and detecting device for a radiating single section of an internal combustion locomotive. When the heat dissipation single section is cleaned, the first valve and the third valve are opened, the second valve and the fourth valve are closed, water in the water tank circulates between the water tank and the heat dissipation single section, the circulating power is increased through the water pump, and the water flow passing through the heat dissipation single section is pressurized, so that the flushing effect is better; when the flow rate of the heat dissipation single section is detected, the first valve and the third valve are closed, and the second valve and the fourth valve are opened, so that water in the water tank flows out through the front half part of the first conveying pipeline, the second conveying pipeline, the heat dissipation single section, the front half part of the first circulating pipeline and the discharge pipeline, and the total time of the water flowing out of the discharge pipeline is recorded; therefore, the circulation rate of the heat dissipation single section is obtained, and whether the heat dissipation single section is blocked or accumulated is judged. By means of the device, cleaning and flow rate detection are integrated, and operation is convenient.

Description

Technical Field

[0001] This application relates to the technical field of the operation of diesel locomotives, and in particular to a cleaning and detection device for a single section of a diesel locomotive radiator. Background Art

[0002] A diesel locomotive is a locomotive that uses an internal combustion engine as the prime mover and drives the wheels to rotate through a transmission device. The cooling system of a diesel locomotive is an important part of the diesel locomotive. Its function is to keep the locomotive at the optimal working temperature, which directly affects the power output, working efficiency, reliability of the diesel engine and the transmission device, as well as the service life of the components. The cooling system consists of a high-temperature water pump, a low-temperature water pump, an intercooler, an oil heat exchanger, a radiator single section, an expansion tank, etc. After the high-temperature water cools the diesel engine and the supercharger, it directly enters the radiator single section. After the low-temperature water enters the intercooler to absorb the heat of the supercharged air, it enters the oil heat exchanger to exchange heat with the diesel engine oil, and then enters the radiator single section through a temperature control valve. The radiator single section dissipates the heat to the air to achieve the purpose of cooling. Smooth flow through the radiator single section is the key to ensuring the cooling effect. Therefore, it is necessary to regularly clean the radiator single section and regularly measure whether the flow rate of the radiator single section can meet the standard. The existing cleaning device and flow rate detection device are both independent devices, which are more cumbersome to use and greatly increase the overall operation time. Summary of the Utility Model

[0003] The purpose of the present utility model is to solve the problem that the existing cleaning device and flow rate detection device are both independent devices, which are more cumbersome to use and greatly increase the overall operation time, and thus provide a device that integrates cleaning and flow rate detection.

[0004] The technical solution adopted by the present utility model to solve the above problems is as follows:

[0005] A cleaning and detection device for a single section of a diesel locomotive radiator, comprising a water tank, a radiator single section, a first conveying pipeline, a second conveying pipeline, a first circulation pipeline and an external discharge pipeline. The water tank is connected to the water inlet end of the radiator single section through the first conveying pipeline. A first valve and a water pump are arranged on the first conveying pipeline. The water outlet end of the radiator single section is connected to the water tank through the first circulation pipeline. The two ends of the second conveying pipeline are connected to the first conveying pipeline at both ends of the first valve and the water pump. A second valve is arranged on the second conveying pipeline. A third valve is arranged on the first circulation pipeline. The external discharge pipeline is connected to the first circulation pipeline between the radiator single section and the fourth valve. A fourth valve is arranged on the external discharge pipeline.

[0006] The present utility model adopting the above technical solution, compared with the prior art, has the following beneficial effects:

[0007] When cleaning and detecting the flow rate of a single heat dissipation section through the device of the present utility model, it is only necessary to connect the water tank and the single heat dissipation section in the above-mentioned manner. When cleaning the single heat dissipation section, open the first valve and the third valve, and close the second valve and the fourth valve, so that the water in the water tank circulates in sequence along the first conveying pipeline, the single heat dissipation section, the first circulation pipeline, and the water tank. The power of the circulation is increased by the water pump to pressurize the water flow passing through the single heat dissipation section, and the flushing effect is better; when detecting the flow rate of the single heat dissipation section, close the first valve and the third valve, open the second valve and the fourth valve, so that the water in the water tank flows out through the first half of the first conveying pipeline, the second conveying pipeline, the single heat dissipation section, the first half of the first circulation pipeline, and the outer discharge pipeline, record the total time for the water to flow out from the outer discharge pipeline, so as to obtain the flow rate of the single heat dissipation section, and then judge whether there is blockage or accumulation in the single heat dissipation section; the device of this embodiment integrates cleaning and flow rate detection, which is convenient for operation and saves operation time at the same time. When the obtained flow rate of the single heat dissipation section is lower than the standard, cleaning can be carried out again until the flow rate of the single heat dissipation section reaches the standard.

[0008] As a preference, a further technical solution of the present utility model is:

[0009] A second circulation pipeline is also connected to the first circulation pipeline at both ends of the fourth valve, and a pressure regulating valve is provided on the second circulation pipeline. When the second valve, the third valve, and the fourth valve are closed, the pipeline pressure between the water pump and the pressure regulating valve is adjusted through the pressure regulating valve. By setting the second circulation pipeline and the pressure regulating valve, the device of the present utility model can also carry out the pressure resistance detection of the single heat dissipation section. Close the second valve, the third valve, and the fourth valve, open the first valve, the water pump, and the pressure regulating valve, and the water in the water tank is pressurized by the water pump and then conveyed into the single heat dissipation section. At the same time, the pressure of the upstream pipeline is increased through the pressure regulating valve to increase the internal pressure of the single heat dissipation section. If there is no leakage in the single heat dissipation section within a certain period of time, it can be judged that the pressure resistance of the single heat dissipation section is good and it can be put into use.

[0010] A filtering device is provided in the water tank. The filtering device divides the water tank into upper and lower space parts. The first conveying pipeline communicates with the lower space of the water tank, and the first circulation pipeline communicates with the upper space of the water tank. Through the filtering device, impurities in the water flowing back from the single heat dissipation section to the water tank are filtered, so that the water flowing out of the water tank through the first conveying pipeline is impurity-free water, thereby increasing the cleaning efficiency.

[0011] A pressure gauge is provided on the first conveying pipeline between the water pump and the single heat dissipation section. The pressure gauge is used to detect and display the pipeline pressure between the water pump and the pressure regulating valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of an embodiment of the present application;

[0013] In the figure: 1. First conveying pipeline; 11. First valve; 12. Water pump; 13. Pressure gauge; 2. Second conveying pipeline; 21. Second valve; 3. Heat dissipation single section; 4. First circulation pipeline; 41. Third valve; 5. Second circulation pipeline; 51. Pressure regulating valve; 6. External discharge pipeline; 61. Fourth valve; 7. Water tank; 71. Filter screen. Detailed implementation mode

[0014] The present utility model will be further described below in conjunction with embodiments, and the purpose is only to better understand the content of the present utility model. Therefore, the examples given do not limit the protection scope of the present utility model.

[0015] Refer to Figure 1 , an internal combustion locomotive heat dissipation single section cleaning and detection device is disclosed in an embodiment of the present application, including a water tank 7, a heat dissipation single section 3, a first conveying pipeline 1, a second conveying pipeline 2, a first circulation pipeline 4 and an external discharge pipeline 6. The water tank 7 is arranged at a high place, and the heat dissipation single section 3 is arranged at a low place, so that there is a certain height difference between the water tank 7 and the heat dissipation single section 3. The water outlet of the water tank 7 is connected to the water inlet end of the heat dissipation single section 3 through the first conveying pipeline 1. A first valve 11 and a water pump 12 are sequentially arranged on the first conveying pipeline 1 from top to bottom. The water outlet end of the heat dissipation single section 3 is connected to the water inlet end of the water tank 7 through the first circulation pipeline 4; the upper end of the second conveying pipeline 2 is connected to the first conveying pipeline 1 upstream of the first valve 11, the lower end of the second conveying pipeline 2 is connected to the first conveying pipeline 1 downstream of the water pump 12, and a second valve 21 is arranged on the second conveying pipeline 2, so that the second valve 21 is in parallel with the first valve 11 and the water pump 12; a third valve 41 is arranged on the first circulation pipeline 4, one end of the external discharge pipeline 6 is connected to the first circulation pipeline 4 between the water outlet end of the heat dissipation single section 3 and the fourth valve 61, and a fourth valve 61 is arranged on the external discharge pipeline 6.

[0016] Preferably, a second circulation pipeline 5 is further included in this embodiment. One end of the second circulation pipeline 5 is connected to the first circulation pipeline 4 upstream of the fourth valve 61, the other end of the second circulation pipeline 5 is connected to the first circulation pipeline 4 downstream of the fourth valve 61, and a pressure regulating valve 51 is arranged on the second circulation pipeline 5, so that the pressure regulating valve 51 is in parallel with the third valve 41. When the second valve 21, the third valve 41 and the fourth valve 61 are closed, the pipeline pressure between the water pump 12 and the pressure regulating valve 51 is adjusted through the pressure regulating valve 51.

[0017] A filtering device is provided in the water tank 7. Preferably, the filtering device uses a filter screen 71 with a mesh size of 80 or more. The four sides of the filter screen 71 are fixed with frames, and each frame is fixed on the inner walls of the water tank 7. Thus, the water tank 7 is divided into upper and lower space parts by the filter screen 71. The first conveying pipeline 1 is connected to the lower space of the water tank 7, and the first circulating pipeline 4 is connected to the upper space of the water tank 7. Through the filter screen 71, impurities in the water flowing back to the water tank 7 from the heat dissipation single section are filtered, so that the water flowing out of the water tank 7 through the first conveying pipeline 1 is impurity-free water, thereby increasing the cleaning efficiency.

[0018] In this embodiment, a pressure gauge 13 is provided on the first conveying pipeline 1 between the water pump 12 and the heat dissipation single section 3. The pressure gauge 13 is used to detect and display the pipeline pressure between the water pump 12 and the pressure regulating valve 51. Preferably, the pressure gauge 13 uses a bourdon tube pressure gauge 13. The joint of the bourdon tube pressure gauge 13 is fixed on the first conveying pipeline 1 downstream of the water pump 12 by bolts. When testing the pressure resistance of the heat dissipation single section 3, the internal pressure value of the heat dissipation single section 3 is set in advance, and the heat dissipation single section 3 does not leak within a certain period of time under this pressure state, then it can pass the pressure resistance test. For example, set the internal pressure of the heat dissipation single section 3 to 400 kPa and the time to five minutes. Open the water pump 12 and the pressure regulating valve 51, so that the water flow rate through the water pump 12 is increased and the water flow rate through the pressure regulating valve 51 is decreased, thereby pressurizing the pipeline section between the water pump 12 and the pressure regulating valve 51, that is, pressurizing the inside of the heat dissipation single section 3. At this time, the pipeline pressure value between the water pump 12 and the pressure regulating valve 51 is displayed on the dial of the pressure gauge 13, which is the internal pressure value of the heat dissipation single section 3. Adjust the pressure regulating valve 51 through the numerical value displayed on the dial of the pressure gauge 13, rotate the adjusting screw of the pressure regulating valve 51 to adjust the opening degree of the pressure regulating valve 51 until the numerical value displayed on the dial of the pressure gauge 13 is 400 kPa, and observe whether there is any leakage in the heat dissipation single section 3 within five minutes. If there is, it fails the test, which means the heat dissipation single section 3 cannot withstand an internal pressure of 400 kPa. If not, it means the heat dissipation single section 3 can withstand an internal pressure of 400 kPa, has good pressure resistance, passes the test, and can be put into use.

[0019] Preferably, the first valve 11, the second valve 21, the third valve 41 and the fourth valve 61 can adopt stop valves, ball valves, butterfly valves, diaphragm valves, solenoid valves, etc., which are valves capable of realizing pipeline conduction and cut-off.

[0020] The working principle of this embodiment is as follows:

[0021] When it is necessary to clean the heat dissipation single section 3, open the first valve 11 and the third valve 41, and close the second valve 21, the fourth valve 61 and the pressure regulating valve 51, so that the water in the water tank 7 circulates in the order of the water tank 7, the first conveying pipeline 1, the heat dissipation single section 3, the first circulation pipeline 4, and the water tank 7. The power of the circulation is increased by the water pump 12, so that the water flow passing through the heat dissipation single section 3 is accelerated, the impurities in the heat dissipation single section 3 are washed away and carried into the water tank 7, filtered by the filter screen 71, and then washed again. By continuously washing the heat dissipation single section 3, the cleaning effect is better; when it is necessary to detect the flow rate of the heat dissipation single section 3, close the first valve 11, the third valve 41 and the pressure regulating valve 51, open the second valve 21 and the fourth valve 61, so that the water in the water tank 7 flows out through the first half of the first conveying pipeline 1, the second conveying pipeline 2, the heat dissipation single section 3, the first half of the first circulation pipeline 4 and the outer discharge pipeline 6, and record the total time for the water to flow out of the outer discharge pipeline 6, so as to obtain the flow rate of the heat dissipation single section 3, and further judge whether there is blockage or accumulation in the heat dissipation single section 3; when it is necessary to detect the pressure resistance of the heat dissipation single section 3, close the second valve 21, the third valve 41 and the fourth valve 61, open the first valve 11, the water pump 12 and the pressure regulating valve 51, the water in the water tank 7 is pressurized by the water pump 12 and then conveyed into the heat dissipation single section 3. At the same time, the pressure of the pipeline upstream of the pressure regulating valve 51 is increased by the pressure regulating valve 51, so that the internal pressure of the heat dissipation single section 3 is increased. If there is no leakage in the heat dissipation single section 3 within a certain period of time, it can be judged that the pressure resistance of the heat dissipation single section 3 is good and it can be put into use; through the device of this embodiment, the cleaning, flow rate detection and pressure resistance detection of the heat dissipation single section 3 are integrated, which is convenient for operation and saves operation time at the same time. When the flow rate of the heat dissipation single section 3 obtained is lower than the standard, it can be cleaned again until the flow rate of the heat dissipation single section 3 reaches the standard.

[0022] The above are only the preferred and feasible embodiments of the present invention, and do not limit the scope of the rights of the present invention. Any equivalent changes made by using the content of the specification and drawings of the present invention are included in the scope of the rights of the present invention.

Claims

1. A single section cleaning and testing device for a diesel locomotive, characterized in that: The invention comprises a water tank (7), a heat dissipation unit (3), a first delivery pipeline (1), a second delivery pipeline (2), a first circulation pipeline (4) and an external discharge pipeline (6); the water tank (7) is connected to the water inlet end of the heat dissipation unit (3) through the first delivery pipeline (1); a first valve (11) and a water pump (12) are arranged on the first delivery pipeline (1); the water outlet end of the heat dissipation unit (3) is connected to the water tank (7) through the first circulation pipeline (4); both ends of the second delivery pipeline (2) are connected to the first delivery pipeline (1) at both ends of the first valve (11) and the water pump (12); a second valve (21) is arranged on the second delivery pipeline (2); a third valve (41) is arranged on the first circulation pipeline (4); the external discharge pipeline (6) is connected to the first circulation pipeline (4) between the heat dissipation unit (3) and a fourth valve (61); and the external discharge pipeline (6) is provided with a fourth valve (61).

2. The internal combustion locomotive heat dissipation single section cleaning and detection device according to claim 1 is characterized in that: The first circulation pipeline (4) at both ends of the fourth valve (61) is also connected to a second circulation pipeline (5), and a pressure regulating valve (51) is provided on the second circulation pipeline (5). When the second valve (21), the third valve (41) and the fourth valve (61) are closed, the pipeline pressure between the water pump (12) and the pressure regulating valve (51) is adjusted through the pressure regulating valve (51).

3. The internal combustion locomotive heat dissipation single section cleaning and testing device according to claim 1 is characterized in that: The water tank (7) is provided with a filtering device, which divides the water tank (7) into two spaces, an upper space and a lower space. The first delivery pipe (1) is connected to the lower space of the water tank (7), and the first circulation pipe (4) is connected to the upper space of the water tank (7).

4. The internal combustion locomotive heat dissipation single section cleaning and testing device according to claim 2, characterized in that: A pressure gauge (13) is provided on the first delivery pipeline (1) between the water pump (12) and the heat dissipation unit (3), and the pressure gauge (13) is used to detect and display the pipeline pressure between the water pump (12) and the pressure regulating valve (51).

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