Maintenance device for cooling tower radiator

Abstract

The utility model belongs to the technical field of radiator maintenance, and discloses a cooling tower radiator maintenance device which comprises an electric control cabinet and a cooling liquid tank. A first pipeline and a second pipeline are arranged between the cooling liquid tank and the cooling tower radiator; a liquid supplementing pump is arranged on the first pipeline and is used for pumping cooling liquid into the cooling liquid tank; the second pipeline is further provided with a circulating pump, an electric valve, a flow meter and a pressure sensor, and the circulating pump, the electric valve, the flow meter and the pressure sensor are all connected with the electric control cabinet and used for obtaining and adjusting the flow and pressure of cooling liquid entering the cooling tower radiator. The cooling liquid in the cooling tower radiator is recycled to the cooling liquid tank, freezing point testing and the like can be conveniently carried out on the cooling liquid, new cooling liquid is properly pumped to the cooling liquid tank from the outside through the liquid supplementing pump according to conditions, then the cooling liquid is sent back to the cooling tower radiator through the second pipeline according to certain flow and pressure, and circulating pressure maintaining is carried out. The cooling tower radiator can be maintained quickly and conveniently.

Description

Technical Field

[0001] The utility model belongs to the technical field of radiator maintenance, in particular to a cooling tower radiator maintenance device. Background Art

[0002] The rapid development of the rail transit industry has placed higher demands on rail vehicle cooling systems. The cooling performance of cooling towers directly impacts the operating status of rail vehicles and has a significant impact on their operational safety. Cooling towers dissipate heat generated by the locomotive transformer and main converter. Expansion tanks in both the water and oil circuits maintain a stable pressure within the cooling system's circulating medium. The cooling towers are dual-circulation cooling towers, with the transformer and main transformer cooling circuits connected to the vehicle body transformer and main converter via oil and water pipes, respectively. The cooling fan drives the cooling air through a water / oil composite radiator, dissipating the heat into the ambient air.

[0003] Rail transit requires extremely high stability and reliability of the liquid pressure in cooling towers. If the liquid pressure in the cooling tower is not normal, the rail transit locomotive equipment will be blocked, and the locomotive will not be able to move. However, the maintenance of cooling tower radiators is still relatively troublesome. On the one hand, the existing maintenance methods and maintenance devices are not intelligently integrated enough, and the maintenance procedures are very tedious and complicated. On the other hand, when servicing cooling tower radiators of different specifications, the old maintenance tools are often not fully compatible, affecting the critical performance of the cooling tower radiators.

[0004] Therefore, there is an urgent need for a simple cooling tower radiator maintenance device that can cover the same type of rail transit used to solve the problems existing in the prior art. Utility Model Content

[0005] The purpose of this utility model is to provide a device that facilitates the maintenance of cooling tower radiators. The specific technical solutions are as follows:

[0006] A cooling tower radiator maintenance device includes an electric control cabinet and a coolant tank;

[0007] A first pipeline and a second pipeline are provided between the coolant tank and the cooling tower radiator;

[0008] The first pipeline is provided with a liquid replenishing pump for pumping coolant into the coolant tank;

[0009] The second pipeline is also provided with a circulation pump, an electric valve, a flow meter and a pressure sensor, which are all connected to the electric control cabinet to obtain and adjust the flow and pressure of the coolant entering the cooling tower radiator.

[0010] Preferably, a buffer rubber pad is provided between the circulation pump and the second pipeline.

[0011] Preferably, a liquid level switch is provided on the second pipeline.

[0012] Preferably, the second pipeline is connected to the cooling tower radiator through a connecting flange.

[0013] Preferably, a filter is further provided on the second pipeline for filtering impurities in the coolant coming out of the coolant tank.

[0014] Preferably, a window is further provided on the second pipeline for observing the flow of the coolant flowing into the cooling tower radiator.

[0015] Preferably, the electric control cabinet is provided with a display screen, which is used to display the pressure and flow measured by the pressure sensor and the flow meter.

[0016] Preferably, the coolant tank is provided with a liquid level glass tube for observing the liquid level in the coolant tank.

[0017] Preferably, the coolant tank is provided with a drain valve.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] A cooling tower radiator maintenance device includes an electric control cabinet and a coolant tank; a first pipeline and a second pipeline are provided between the coolant tank and the cooling tower radiator; a refill pump is provided on the first pipeline for drawing coolant into the coolant tank; a circulating pump, an electric valve, a flow meter and a pressure sensor are also provided on the second pipeline, and the circulating pump, the electric valve, the flow meter and the pressure sensor are all connected to the electric control cabinet for obtaining and adjusting the flow rate and pressure of the coolant entering the cooling tower radiator. The utility model recovers the coolant in the cooling tower radiator to the coolant tank, making it convenient to perform freezing point testing on the coolant, and according to the situation, appropriately draws new coolant from the outside into the coolant tank through the refill pump, and then returns the coolant to the cooling tower radiator through the second pipeline at a certain flow rate and pressure and circulates to maintain pressure, thereby achieving quick and convenient maintenance of the cooling tower radiator.

[0020] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram from a first perspective of a cooling tower radiator maintenance device in an embodiment;

[0022] Figure 2 is a schematic structural diagram of the cooling tower radiator maintenance device from a second perspective in the embodiment;

[0023] In the figure: 1. Electric control cabinet, 2. Coolant tank, 3. Circulation pump, 4. Filter, 5. Buffer rubber pad, 6. Electric valve, 7. Flow meter, 8. Pressure sensor, 9. Window, 10. Ball valve, 11. Liquid replenishing pump, 12. Liquid level glass tube, 13. Drain valve. DETAILED DESCRIPTION

[0024] The following describes the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered by the claims.

[0025] Example:

[0026] A cooling tower radiator maintenance device, reference Figure 1 and Figure 2 , including an electric control cabinet 1 and a coolant tank 2; a first pipeline and a second pipeline are provided between the coolant tank 2 and the cooling tower radiator; a refill pump 11 is provided on the first pipeline for extracting coolant into the coolant tank 2; a circulation pump 3, an electric valve 6, a flow meter 7 and a pressure sensor 8 are provided on the second pipeline, and the circulation pump 3, the electric valve 6, the flow meter 7 and the pressure sensor 8 are all connected to the electric control cabinet 1, for obtaining and adjusting the flow rate and pressure of the coolant entering the cooling tower radiator. Through the above arrangement, the coolant in the cooling tower radiator is recovered to the coolant tank, so that it is convenient to perform freezing point tests on the coolant in the coolant tank, and according to the situation, new coolant is appropriately extracted from the outside through the refill pump to replenish the coolant in the coolant tank, and then it is sent back to the cooling tower radiator through the second pipeline at a certain flow rate and pressure, and a circulation pressure maintenance operation is performed, so that the cooling tower radiator can be quickly and conveniently inspected and maintained.

[0027] In the device of this embodiment, a ball valve 10 is also provided on the second pipeline. The electric valve primarily regulates the flow of coolant entering the cooling tower. The flow meter primarily measures the flow of coolant entering the cooling tower. The pressure sensor primarily measures the pressure of the coolant entering the cooling tower. By detecting and controlling the flow and pressure entering the cooling tower radiator, circulation and pressure maintenance within the cooling tower radiator can be conveniently achieved.

[0028] The cooling liquid in the coolant tank is flushed into the cooling tower radiator through the circulation pump to realize the circulation of coolant. The maintenance plan of the cooling tower maintenance is determined based on the flow rate and pressure obtained.

[0029] After the operator has added the appropriate coolant into the cooling tower radiator, the circulation and pressure maintenance can be carried out according to the process documents. Turn on the circulation pump, and then observe the flow and pressure values ​​on the screen of the electric control cabinet. The PLC in the electric control cabinet will automatically adjust the speed of the circulation pump 3 and the opening of the electric valve 6 according to the control requirements to achieve the flow and pressure required by the process documents. When the pressure and flow specified in the process documents are reached, keep the speed of the circulation pump unchanged, keep the opening of the electric valve unchanged, and keep working. When the operating time specified in the process documents is reached, check the flow and pressure values ​​recorded on the screen to determine the performance of the cooling tower radiator. Based on the performance of the radiator, decide how to deal with the radiator (repair, scrapping, or continue to use).

[0030] A buffer rubber pad 5 is provided between the circulating pump 3 and the second pipeline. The buffer rubber pad can reduce vibration between the circulating pump and the pipeline.

[0031] The second pipeline is provided with a liquid level switch. A liquid level switch is arranged at the bottom of the coolant tank. When the coolant level in the coolant tank is low, the switch is triggered and the electric control cabinet controls the circulation pump or the liquid replenishing pump to stop running.

[0032] The second pipeline is connected to the cooling tower radiator via a connecting flange. The pipeline system realizes quick pipeline connection via the flange, thereby improving the maintenance efficiency of the radiator.

[0033] The second pipeline is also provided with a filter 4 for filtering impurities in the coolant coming out of the coolant tank 2. The device is provided with filters at the cooling tower inlet and the cooling tower outlet to filter impurities in the coolant and avoid clogging the cooling tower radiator.

[0034] The second pipeline is also provided with a window 9 for observing the flow of the coolant flowing into the cooling tower radiator. The window is used to observe the flow of the coolant entering the cooling tower radiator.

[0035] The electric control cabinet 1 is provided with a display screen, which is used to display the pressure and flow measured by the pressure sensor 8 and the flow meter 7.

[0036] The cooling liquid tank 2 is provided with a liquid level glass tube 12 for observing the liquid level in the cooling liquid tank 2. The liquid level glass tube facilitates the operator to observe the cooling liquid level in the cooling liquid tank.

[0037] Described cooling liquid tank 2 is provided with drain valve 13. Drain valve is mainly used for sampling cooling liquid, testing the freezing point of cooling liquid, or discharging waste liquid in cooling liquid tank.

[0038] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A cooling tower radiator maintenance device, characterized in that: It comprises an electric control cabinet (1) and a coolant tank (2); A first pipeline and a second pipeline are provided between the coolant tank (2) and the cooling tower radiator; The first pipeline is provided with a liquid replenishing pump (11) for pumping coolant into the coolant tank (2); The second pipeline is provided with a circulation pump (3), an electric valve (6), a flow meter (7) and a pressure sensor (8); the circulation pump (3), the electric valve (6), the flow meter (7) and the pressure sensor (8) are all connected to the electric control cabinet (1) and are used to obtain and adjust the flow rate and pressure of the coolant entering the cooling tower radiator.

2. A cooling tower radiator maintenance device according to claim 1, characterized in that: A buffer rubber pad (5) is provided between the circulation pump (3) and the second pipeline.

3. A cooling tower radiator maintenance device according to claim 2, characterized in that: The second pipeline is provided with a liquid level switch.

4. A cooling tower radiator maintenance device according to claim 3, characterized in that: The second pipeline is connected to the cooling tower radiator through a connecting flange.

5. A cooling tower radiator maintenance device according to claim 4, characterized in that: The second pipeline is also provided with a filter (4) for filtering impurities in the coolant coming out of the coolant tank (2).

6. A cooling tower radiator maintenance device according to claim 5, characterized in that: The second pipeline is also provided with a viewing window (9) for observing the flow of the coolant flowing into the cooling tower radiator.

7. A cooling tower radiator maintenance device according to claim 1, characterized in that: The electric control cabinet (1) is provided with a display screen, which is used to display the pressure and flow measured by the pressure sensor (8) and the flow meter (7).

8. A cooling tower radiator maintenance device according to claim 1, characterized in that: The cooling liquid tank (2) is provided with a liquid level glass tube (12) for observing the liquid level in the cooling liquid tank (2).

9. A cooling tower radiator maintenance device according to claim 1, characterized in that: The coolant tank (2) is provided with a drain valve (13).

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