A multi-mode automatic exhaust and liquid filling device and a liquid filling control method

Abstract

The present invention discloses a multi-mode automatic exhaust and liquid filling device, which includes a platform component, a self-priming pump, a centrifugal pump and a liquid container provided on the platform component. The inlet end of the centrifugal pump is fixedly connected to a first component, the first component is connected to the liquid container, the outlet end of the centrifugal pump is connected to a second component, the second component is connected to a provided liquid output component, the second component is also communicated with a first self-suction pipe, the first self-suction pipe is fixedly connected to the inlet end of the self-priming pump, and the outlet end of the self-priming pump is connected to a second self-suction pipe. The structure of the present invention is simple. The self-priming pump is used to automatically discharge the air in the pipeline and control the centrifugal pump to fill the liquid, which can effectively avoid the problem that the liquid pipeline cannot be continuously filled due to the presence of air, reduce the timeliness of the enterprise production requirements, and at the same time, a liquid container is provided to prevent the problem that the external solution barrel cannot supply materials in time due to various factors, improving the flexibility of the device.

Description

Technical Field

[0001] The present invention relates to an exhaust and liquid filling device, and particularly to a multi-mode automatic exhaust and liquid filling device. Background Art

[0002] Regarding the existing liquid filling devices on the market currently, the connecting pipeline of the self-priming pump extracts and fills the liquid from a large container. When there is gas in the connecting pipeline, the phenomenon that the liquid cannot be continuously filled due to the existence of air in the connecting pipeline occurs. This greatly reduces the working efficiency and fails to complete the established target tasks within the specified time. Especially for the batch product production tests on some assembly lines, it reduces the timeliness of the enterprise's production requirements.

[0003] Publication No. CN 208622856 U discloses a liquid filling device, including a main pipeline, a branch pipeline, and a filling gun provided at one end of the main pipeline. A storage tank for holding the solution to be filled and a pump for providing power for the solution filling are provided on the branch pipeline. When the pump extracts and fills the liquid, due to the existence of air in the main pipeline, the filling gun cannot continuously provide the filling liquid, and this device still has the phenomenon that the liquid cannot be continuously filled.

[0004] Therefore, a device that can automatically exhaust air and achieve continuous liquid filling is needed. Summary of the Invention

[0005] Aiming at the problems existing in the prior art, the present invention provides a multi-mode automatic exhaust and liquid filling device with a simple structure.

[0006] To solve the above technical problems, the technical solution adopted by the present invention is:

[0007] An automatic exhaust and liquid filling device, including a platform assembly, a self-priming pump, a centrifugal pump, and a liquid container provided on the platform assembly. The inlet end of the centrifugal pump is fixedly connected with a first assembly, the first assembly is connected to the liquid container, the outlet end of the centrifugal pump is connected with a second assembly, and the second assembly is connected with a provided liquid output assembly.

[0008] The second assembly is also communicated with a first self-suction pipe, the first self-suction pipe is fixedly connected with the inlet end of the self-priming pump, and the outlet end of the self-priming pump is connected with a second self-suction pipe.

[0009] The first assembly includes a first shunt device provided at the inlet end of the centrifugal pump. The first shunt device includes two inlets and one outlet. The outlet of the first shunt device is fixedly connected with the inlet end of the centrifugal pump. One inlet in the first shunt device is connected with a provided spare assembly, and the other inlet is fixedly connected with a first connecting pipe. The other end of the first connecting pipe is fixedly connected with the liquid container. A first butterfly valve is provided on the first connecting pipe.

[0010] The spare component includes a spare pipeline 1 connected to the inlet in the first shunt device. A second butterfly valve is provided on the spare pipeline 16.

[0011] The second component includes a second shunt device. The second shunt device includes one inlet and two outlets. The inlet of the second shunt device is connected to the outlet end of the centrifugal pump through a second connecting pipe provided. One outlet in the second shunt device is connected to the liquid output component, and the other outlet in the second shunt device is also communicated with the first self-suction pipe.

[0012] The liquid output group includes a first liquid output pipe fixedly connected to the outlet in the second shunt device. The other end of the first liquid output pipe is provided with a third shunt device. The third shunt device includes one inlet and two outlets. One inlet in the third shunt device is fixedly connected to the other end of the first liquid output pipe. One outlet in the third shunt device is fixedly connected to the second liquid output pipe, and the other outlet is communicated with a fourth shunt device provided. A one-way ball valve is fixedly connected to the second liquid output pipe.

[0013] The fourth shunt device includes two inlets and one outlet. One inlet in the fourth shunt device is fixedly connected to the second self-suction pipe, and the other inlet is fixedly connected to one outlet in the third shunt device. The outlet in the fourth shunt device is also connected with an overflow pipe. The end of the overflow pipe is fixedly connected with an overflow valve, and a third butterfly valve is provided on the overflow pipe.

[0014] The mobile trolley is also provided with a storage battery and a switch group. The storage battery is electrically connected to the switch group, and the switch group is respectively electrically connected to the self-priming pump and the centrifugal pump.

[0015] A filling port is provided at the upper part of the liquid container, and a filter screen is provided in the filling port;

[0016] An electronic liquid level gauge is provided in the liquid container;

[0017] The platform component includes a mobile trolley.

[0018] A control method for liquid filling using an automatic exhaust and liquid filling device includes a liquid filling mode A, that is, a liquid filling mode with a slow liquid outflow speed; a liquid filling mode B, that is, a liquid filling mode with a fast liquid outflow speed; a liquid filling mode C, that is, a liquid filling mode with a fast liquid outflow speed and circulating liquid filling into the liquid container; a liquid filling mode D, that is, a liquid filling mode with the fastest liquid outflow speed; a liquid filling mode E, that is, a mode of quickly replenishing liquid into the liquid container:

[0019] The liquid filling mode A, that is, the liquid filling mode with a slow liquid outflow speed, includes the following steps:

[0020] S0: Close the first butterfly valve and the second butterfly valve. Sequentially turn on the centrifugal pump and the self-priming pump. The self-priming pump sucks the air in the first liquid output pipe and the second liquid output pipe, and the outlet end of the self-priming pump outputs the air into the second self-priming pipe and the overflow valve pipe;

[0021] S1: Open the second butterfly valve. The centrifugal pump pumps liquid from the external solution barrel through the standby pipeline. The output end of the centrifugal pump sequentially transports the liquid to the second shunt device, the first liquid output pipe and the second liquid output pipe. The solution sucked by the self-priming pump from the second shunt device is sequentially transported into the second self-priming pipe and the overflow valve pipe. The overflow valve is opened, and the air is discharged through the overflow valve. When there is liquid flowing out of the one-way ball valve 6, turn off the self-priming pump;

[0022] B liquid addition mode, that is, the liquid addition mode with a relatively fast liquid outflow speed, includes the following steps:

[0023] S0: Close the first butterfly valve and the second butterfly valve. Sequentially turn on the centrifugal pump and the self-priming pump. The self-priming pump sucks the air in the first liquid output pipe and the second liquid output pipe, and the outlet end of the self-priming pump outputs the air into the second self-priming pipe and the overflow valve pipe;

[0024] S1: Open the second butterfly valve. The centrifugal pump pumps liquid from the external solution barrel through the standby pipeline. The output end of the centrifugal pump sequentially transports the liquid to the second shunt device, the first liquid output pipe and the second liquid output pipe. The solution sucked by the self-priming pump from the second shunt device is sequentially transported into the second self-priming pipe and the overflow valve pipe. The overflow valve is opened, and the air is discharged through the overflow valve. When there is liquid flowing out of the one-way ball valve 6, turn off the self-priming pump;

[0025] S2: After turning off the self-priming pump in the above S1, close the third butterfly valve. The centrifugal pump sucks the liquid from the external solution barrel and sequentially transports the sucked liquid from the output end of the centrifugal pump to the first liquid output pipe and the second liquid output pipe, and discharges it through the one-way ball valve;

[0026] C liquid addition mode, that is, the liquid addition mode with a relatively fast liquid outflow speed and liquid circulation addition into the liquid container, includes the following steps:

[0027] S0: Close the first butterfly valve and the second butterfly valve. Sequentially turn on the centrifugal pump and the self-priming pump. The self-priming pump sucks the air in the first liquid output pipe and the second liquid output pipe, and the outlet end of the self-priming pump outputs the air into the second self-priming pipe and the overflow valve pipe;

[0028] S1: Open the second butterfly ball valve. The centrifugal pump pumps liquid from the external solution barrel through the standby pipeline. The output end of the centrifugal pump delivers the liquid to the second shunt device, the first liquid output pipe, and the second liquid output pipe in sequence. The solution sucked by the self-priming pump from the second shunt device is delivered to the second self-priming pipe and the overflow valve pipe in sequence. The overflow valve is opened, and air is discharged through the overflow valve. When there is liquid flowing out of the one-way ball valve 6, turn off the self-priming pump;

[0029] S2: After turning off the self-priming pump in the above S1, open the first butterfly ball valve. The centrifugal pump sucks the liquid from the external solution barrel and the liquid container and sends it into the first liquid output pipe and the second liquid output pipe. The excess solution that has not been discharged in time in the first liquid output pipe and the second liquid output pipe will flow to the fourth shunt device and the overflow pipe through the third shunt device in sequence, and finally flow into the liquid container through the overflow valve, and keep circulating for standby until the liquid in the external solution barrel is pumped out;

[0030] D liquid addition mode, that is, the liquid addition mode with the fastest liquid outflow speed, includes the following steps:

[0031] S0: Close the first butterfly ball valve and the second butterfly ball valve. Turn on the centrifugal pump and the self-priming pump in sequence. The self-priming pump sucks the air in the first liquid output pipe and the second liquid output pipe, and the outlet end of the self-priming pump outputs the air to the second self-priming pipe and the overflow valve pipe;

[0032] S1: Open the second butterfly ball valve. The centrifugal pump pumps liquid from the external solution barrel through the standby pipeline. The output end of the centrifugal pump delivers the liquid to the second shunt device, the first liquid output pipe, and the second liquid output pipe in sequence. The solution sucked by the self-priming pump from the second shunt device is delivered to the second self-priming pipe and the overflow valve pipe in sequence. The overflow valve is opened, and air is discharged through the overflow valve. When there is liquid flowing out of the one-way ball valve 6, turn off the self-priming pump;

[0033] S2: After turning off the self-priming pump in the above S1, close the third butterfly ball valve and open the first butterfly ball valve. The centrifugal pump sucks the liquid in the external solution barrel and the liquid container, and the output end of the centrifugal pump delivers the sucked liquid to the first liquid output pipe and the second liquid output pipe in sequence, and discharges it through the one-way ball valve);

[0034] E liquid addition mode, that is, the rapid liquid addition mode for replenishing the liquid container, includes the following steps:

[0035] S0: Close the first butterfly ball valve and the second butterfly ball valve. Turn on the centrifugal pump and the self-priming pump in sequence. The self-priming pump sucks the air in the first liquid output pipe and the second liquid output pipe, and the outlet end of the self-priming pump outputs the air to the second self-priming pipe and the overflow valve pipe;

[0036] S1: Open the second butterfly ball valve. The centrifugal pump pumps liquid from the external solution tank through the standby pipeline. The output end of the centrifugal pump sequentially conveys the liquid to the second shunt device, the first liquid output pipe, and the second liquid output pipe. The solution sucked by the self-priming pump from the second shunt device is sequentially conveyed to the second self-priming pipe and the overflow valve pipe. The overflow valve is opened, and air is discharged through the overflow valve. When there is liquid flowing out of the one-way ball valve 6, turn off the self-priming pump;

[0037] S2: After turning off the self-priming pump in the above S1, close the one-way ball valve. The centrifugal pump pumps liquid from the external solution tank through the standby pipeline respectively. The output end of the centrifugal pump sequentially conveys the liquid to the first liquid output pipe and the second liquid output pipe. The solution in the first liquid output pipe will flow through the third shunt device to the fourth shunt device and the overflow valve pipe in sequence, and finally flow into the liquid container through the overflow valve.

[0038] Beneficial effects:

[0039] The structure of the present invention is simple. The self-priming pump is used to automatically discharge the air in the pipeline and control the centrifugal pump to fill the liquid, which can effectively avoid the problem that the liquid pipeline cannot be continuously filled due to the existence of air, reduce the timeliness requirements of the enterprise production work, and at the same time set up a liquid container to prevent the external solution tank from not being able to supply materials in time due to various factors, improving the flexibility of the device.

[0040] The inlet end of the centrifugal pump is connected with a standby pipeline, and the opening and closing of the standby pipeline are controlled by a second butterfly ball valve. The liquid in the external solution tank can be directly extracted through the standby pipeline to meet continuous feeding.

[0041] A first butterfly ball valve is provided on the first connecting pipe to control the outflow of the liquid in the liquid container. A third butterfly ball valve is provided on the overflow valve pipe to control the liquid that has not been discharged in time in the first liquid output pipe and the second liquid output pipe to enter the liquid container. By controlling the opening and closing of the butterfly ball valve, different liquid filling modes are improved to meet the use in multiple scenarios. Description of the drawings

[0042] Figure 1 is a schematic structural diagram of the present invention. Detailed implementation manners

[0043] The present invention will be further described below with reference to the drawings

[0044] As Figure 1 shown, a multi-mode automatic air exhaust and liquid filling device includes a platform assembly, and a self-priming pump 2, a centrifugal pump 3, and a liquid container 4 provided on the platform assembly. The inlet end of the centrifugal pump 2 is fixedly connected with a first assembly, the first assembly is connected to the liquid container 4, the outlet end of the centrifugal pump 3 is fixedly connected with a second assembly, and the second assembly is connected to the provided liquid output assembly.

[0045] The second component is also connected with a first self - suction pipe 7. The first self - suction pipe 7 is fixedly connected to the inlet end of the self - suction pump 2, and the outlet end of the self - suction pump 2 is connected with a second self - suction pipe 8.

[0046] During operation, the centrifugal pump 3 and the self - suction pump 2 are turned on in sequence. The inlet end of the self - suction pump 2 uses the first self - suction pipe 7 to suck out the air in the liquid output component, and discharges it through the outlet end of the self - suction pump 2 and the second self - suction pipe 8, which can effectively avoid the situation that the liquid output component cannot be continuously filled due to the presence of air, and reduce the timeliness requirements of the enterprise's production work.

[0047] To facilitate the movement of the device, the platform component is a mobile trolley 1.

[0048] The first component includes a first shunt device 11 provided at the inlet end of the centrifugal pump 3. The first shunt device 11 includes two inlets and one outlet. The outlet of the first shunt device 11 is fixedly connected to the inlet end of the centrifugal pump 3. One inlet of the first shunt device 11 is connected to a provided spare component, and the other inlet is fixedly connected with a first connecting pipe 9. The other end of the first connecting pipe 9 is fixedly connected to the liquid container 4. A first butterfly valve 14 is provided on the first connecting pipe 9, and the first butterfly valve 14 is used to control the outflow of the liquid in the liquid container. Specifically, the first shunt device 11 is a three - way pipe.

[0049] The spare component includes a spare pipe 16 connected to the inlet of the first shunt device 11. A second butterfly valve 17 is provided on the spare pipe 16. The spare pipe 16 is used for communicating with an external solution barrel. The second butterfly valve 17 is used to control the inflow of the solution in the external solution barrel. By providing the spare pipe 16 for sucking the external solution, the applicable scenarios of the device are enriched.

[0050] The second component includes a second shunt device 12. The second shunt device 12 includes one inlet and two outlets. The inlet 12 of the second shunt device is fixedly connected to the outlet end of the centrifugal pump 3 through a provided second connecting pipe 13. One outlet of the second shunt device 12 is connected to the liquid output component, and the other outlet of the second shunt device 12 is also connected to the first self - suction pipe 7. Specifically, the second shunt device 12 is a three - way pipe.

[0051] The liquid output group includes a first liquid output pipe 10 fixedly connected to the outlet in the second shunt device 12. The other end of the first liquid output pipe 10 is provided with a third shunt device 15. The third shunt device 15 includes an inlet and two outlets. One inlet in the third shunt device 15 is fixedly connected to the first liquid output pipe 10. One outlet in the third shunt device 15 is fixedly connected to the second liquid output pipe 5. The other outlet is communicated with the provided fourth shunt device 18. The second liquid output pipe 5 is fixedly connected with a one-way ball valve 6. The one-way ball valve 6 is used to control the opening, closing and discharging speed of the solution.

[0052] The fourth shunt device 18 includes two inlets and one outlet. One inlet in the fourth shunt device 18 is fixedly connected to the second self-suction pipe 8. The other inlet is fixedly connected to one outlet in the third shunt device 15. The outlet in the fourth shunt device 18 is also connected with an overflow pipe 19. The end of the overflow pipe 19 is fixedly connected with an overflow valve 20. A third butterfly valve 21 is provided on the overflow pipe 19. The third butterfly valve 21 is used to control the discharge of the solution through the overflow valve.

[0053] The mobile trolley is also provided with a storage battery 24 and a switch group 26. The storage battery 24 is electrically connected to the switch group 25. The switch group is respectively electrically connected to the self-priming pump 2 and the centrifugal pump 3. The switch group 25 can respectively control the opening and closing of the self-priming pump 2 and the centrifugal pump 3.

[0054] A filling port 22 is provided at the upper part of the liquid container. A filter screen 23 is provided in the filling port. External liquid can be manually taken through the filling port 22 and added into the liquid container 4.

[0055] An electronic liquid level gauge 21 is provided in the liquid container. The display screen connected to the electronic liquid level gauge 21 is fixedly connected to the outside of the liquid container 4. The height of the liquid in the liquid container 4 can be observed through the display screen of the electronic liquid level gauge.

[0056] A control method for liquid filling using an automatic exhaust and liquid filling device includes an A liquid filling mode, that is, a liquid filling mode with a slower liquid outflow speed; a B liquid filling mode, that is, a liquid filling mode with a faster liquid outflow speed; a C liquid filling mode, that is, a liquid filling mode with a faster liquid outflow speed and circulating liquid filling into the liquid container; a D liquid filling mode, that is, a liquid filling mode with the fastest liquid outflow speed; an E liquid filling mode, that is, a mode of quickly replenishing liquid into the liquid container:

[0057] The A liquid filling mode, that is, the liquid filling mode with a slower liquid outflow speed, includes the following steps:

[0058] S0: Close the first butterfly valve 14 and the second butterfly valve 17. Sequentially turn on the centrifugal pump 3 and the self-priming pump 2 through the switch group 26. The self-priming pump 2 sucks the air in the first liquid output pipe 10 and the second liquid output pipe 2, and the outlet end of the self-priming pump 2 outputs the air into the second self-priming pipe 8 and the overflow valve pipe 19;

[0059] S1: Open the second butterfly valve 17. The centrifugal pump 3 pumps liquid from the external solution barrel through the standby pipeline 16. The output end of the centrifugal pump 3 sequentially conveys the liquid to the second shunt device 12, the first liquid output pipe 10 and the second liquid output pipe 5. The solution sucked by the self-priming pump 2 from the second shunt device 12 is sequentially conveyed into the second self-priming pipe 8 and the overflow valve pipe 19. The overflow valve 20 is opened (because the pressure in the overflow valve pipe increases), and the air is discharged through the overflow valve 20. When there is liquid flowing out of the one-way ball valve 6 (after the air in the pipeline is exhausted), turn off the self-priming pump 2, and the one-way ball valve 6 continues to discharge the liquid.

[0060] B liquid adding mode, that is, the liquid adding mode with a relatively fast liquid outflow speed, includes the following steps:

[0061] S0: Close the first butterfly valve 14 and the second butterfly valve 17. Sequentially turn on the centrifugal pump 3 and the self-priming pump 2 through the switch group 26. The self-priming pump 2 sucks the air in the first liquid output pipe 10 and the second liquid output pipe 2, and the outlet end of the self-priming pump 2 outputs the air into the second self-priming pipe 8 and the overflow valve pipe 19;

[0062] S1: Open the second butterfly valve 17. The centrifugal pump 3 pumps liquid from the external solution barrel through the standby pipeline 16. The output end of the centrifugal pump 3 sequentially conveys the liquid to the second shunt device 12, the first liquid output pipe 10 and the second liquid output pipe 5. The solution sucked by the self-priming pump 2 from the second shunt device 12 is sequentially conveyed into the second self-priming pipe 8 and the overflow valve pipe 19. The overflow valve 20 is opened (because the pressure in the overflow valve pipe increases), and the air is discharged through the overflow valve 20. When there is liquid flowing out of the one-way ball valve 6 (after the air in the pipeline is exhausted), turn off the self-priming pump 2;

[0063] S2: After turning off the self-priming pump 2 in the above S1, close the third butterfly valve 21. The centrifugal pump 3 conveys the liquid sucked from the external solution barrel 25 from the output end of the centrifugal pump 3 to the first liquid output pipe 7 and the second liquid output pipe 8 in sequence, and discharges it through the one-way ball valve 6 (the liquid outflow speed is relatively fast);

[0064] C liquid adding mode, that is, the liquid adding mode with a relatively fast liquid outflow speed and the liquid adding mode of circulating into the liquid container, includes the following steps:

[0065] S0: Close the first butterfly valve 14 and the second butterfly valve 17. Sequentially turn on the centrifugal pump 3 and the self-priming pump 2 through the switch group 26. The self-priming pump 2 sucks the air in the first liquid output pipe 10 and the second liquid output pipe 2, and the outlet end of the self-priming pump 2 outputs the air into the second self-priming pipe 8 and the overflow valve pipe 19;

[0066] S1: Open the second butterfly valve 17. The centrifugal pump 3 pumps liquid from the external solution barrel through the standby pipeline 16. The output end of the centrifugal pump 3 sequentially transports the liquid to the second shunt device 12, the first liquid output pipe 10 and the second liquid output pipe 5. The solution sucked by the self-priming pump 2 from the second shunt device 12 is sequentially transported to the second self-priming pipe 8 and the overflow valve pipe 19. The overflow valve 20 is opened (because the pressure in the overflow valve pipe increases), and the air is discharged through the overflow valve 20. When there is liquid flowing out of the one-way ball valve 6 (after the air in the pipeline is exhausted), turn off the self-priming pump 2;

[0067] S2: After turning off the self-priming pump 2 in the above S1, open the first butterfly valve 14. The centrifugal pump 3 sends the liquid sucked from the external solution barrel 25 and the liquid container 4 into the first liquid output pipe 10 and the second liquid output pipe 5. The excess solution that is not discharged in time in the first liquid output pipe 10 and the second liquid output pipe 5 will sequentially flow through the third shunt device 15 to the fourth shunt device 18 and the overflow pipe 19, and finally flow into the liquid container 4 through the overflow valve 20, and keep circulating in standby until the liquid in the external solution barrel 25 is pumped out completely;

[0068] D liquid addition mode, that is, the liquid outflow speed is the fastest liquid addition mode, includes the following steps:

[0069] S0: Close the first butterfly valve 14 and the second butterfly valve 17. Sequentially turn on the centrifugal pump 3 and the self-priming pump 2 through the switch group 26. The self-priming pump 2 sucks the air in the first liquid output pipe 10 and the second liquid output pipe 2, and the outlet end of the self-priming pump 2 outputs the air into the second self-priming pipe 8 and the overflow valve pipe 19;

[0070] S1: Open the second butterfly valve 17. The centrifugal pump 3 pumps liquid from the external solution barrel through the standby pipeline 16. The output end of the centrifugal pump 3 sequentially transports the liquid to the second shunt device 12, the first liquid output pipe 10 and the second liquid output pipe 5. The solution sucked by the self-priming pump 2 from the second shunt device 12 is sequentially transported to the second self-priming pipe 8 and the overflow valve pipe 19. The overflow valve 20 is opened (because the pressure in the overflow valve pipe increases), and the air is discharged through the overflow valve 20. When there is liquid flowing out of the one-way ball valve 6 (after the air in the pipeline is exhausted), turn off the self-priming pump 2;

[0071] S2: After turning off the self-priming pump 2 in the above S1, close the third butterfly valve 19 and open the first butterfly valve 14. The centrifugal pump 3 sucks the liquid in the external solution tank 25 and the liquid container 4. The output end of the centrifugal pump 3 conveys the sucked liquid to the first liquid output pipe 7 and the second liquid output pipe 8 in sequence, and discharges it through the one-way ball valve 6 (the liquid outflow speed is the fastest);

[0072] The E liquid addition mode, that is, the mode of quickly replenishing the liquid in the liquid container, includes the following steps:

[0073] S0: Close the first butterfly valve 14 and the second butterfly valve 17. Turn on the centrifugal pump 3 and the self-priming pump 2 in sequence through the switch group 26. The self-priming pump 2 sucks the air in the first liquid output pipe 10 and the second liquid output pipe 2. The outlet end of the self-priming pump 2 outputs the air into the second self-suction pipe 8 and the overflow valve pipe 19;

[0074] S1: Open the second butterfly valve 17. The centrifugal pump 3 pumps liquid from the external solution tank through the standby pipeline 16. The output end of the centrifugal pump 3 conveys the liquid to the second shunt device 12, the first liquid output pipe 10 and the second liquid output pipe 5 in sequence. The solution sucked by the self-priming pump 2 from the second shunt device 12 is conveyed to the second self-suction pipe 8 and the overflow valve pipe 19 in sequence. The overflow valve 20 is opened (because the pressure in the overflow valve pipe increases), and the air is discharged through the overflow valve 20. When there is liquid flowing out of the one-way ball valve 6 (the air in the pipeline is exhausted), turn off the self-priming pump 2;

[0075] S2: After turning off the self-priming pump 2 in the above S1, close the one-way ball valve 6. The centrifugal pump 3 pumps liquid from the external solution tank through the standby pipeline 16 respectively. The output end of the centrifugal pump 3 conveys the liquid to the first liquid output pipe 10 and the second liquid output pipe 5 in sequence. The solution in the first liquid output pipe 10 will flow through the third shunt device 15 to the fourth shunt device 18 and the overflow valve pipe 19 in sequence, and finally flow into the liquid container through the overflow valve 20.

[0076] Among them, to meet large-power units, when there are multiple external solution tanks 25 outside, the adjacent external solution tanks 25 are connected by a liquid addition rubber tube. One end of the standby pipeline 16 is placed in one of the external solution tanks 25. While the standby pipeline 16 extracts the external solution tank 25, the liquid in the remaining external solution tanks will also flow into the external solution tank 25 with the standby pipeline through the liquid addition rubber tube.

[0077] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation on the protected content of the present invention.

[0078] If terms such as "first" and "second" are used in this article to limit components, those skilled in the art should be aware that the use of "first" and "second" is only for the convenience of describing the present invention and simplifying the description. Without additional declaration, the above terms have no special meaning.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features, but 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 invention.

Claims

1. A multi-mode automatic exhaust and liquid filling device, comprising a platform assembly, characterized in that The platform component is provided with a self-priming pump, a centrifugal pump and a liquid container. The inlet end of the centrifugal pump is fixedly connected with a first component. The first component is connected to the liquid container. The outlet end of the centrifugal pump is connected with a second component. The second component is connected to the provided liquid output component. The second component is also communicated with a first self-priming pipe. The first self-priming pipe is fixedly connected with the inlet end of the self-priming pump. The outlet end of the self-priming pump is connected with a second self-priming pipe. The first component includes a first shunt device provided at the inlet end of the centrifugal pump. The first shunt device includes two inlets and one outlet. The outlet of the first shunt device is fixedly connected with the inlet end of the centrifugal pump. One of the inlets in the first shunt device is connected to the provided spare component. The other inlet is fixedly connected with a first connecting pipe. The other end of the first connecting pipe is fixedly connected to the liquid container. A first butterfly valve is provided on the first connecting pipe. The spare component includes a spare pipeline connected to the inlet in the first shunt device. A second butterfly valve is provided on the spare pipeline. The second component includes a second shunt device. The second shunt device includes one inlet and two outlets. The inlet of the second shunt device is connected to the outlet end of the centrifugal pump through the provided second connecting pipe. One of the outlets in the second shunt device is connected to the liquid output component. The other outlet in the second shunt device is also communicated with the first self-priming pipe.

2. The multi-mode automatic exhaust and liquid adding device according to claim 1, wherein The liquid output component includes a first liquid output pipe fixedly connected to the outlet in the second shunt device. The other end of the first liquid output pipe is provided with a third shunt device. The third shunt device includes one inlet and two outlets. One of the inlets in the third shunt device is fixedly connected to the other end of the first liquid output pipe. One of the outlets in the third shunt device is fixedly connected to a second liquid output pipe. The other outlet is communicated with the provided fourth shunt device. A one-way valve is fixedly connected to the second liquid output pipe.

3. The multi-mode automatic exhaust and liquid filling device according to claim 2, wherein The fourth shunt device includes two inlets and one outlet. One of the inlets in the fourth shunt device is fixedly connected to the second self-priming pipe. The other inlet is fixedly connected to one of the outlets in the third shunt device. The outlet in the fourth shunt device is also connected to an overflow pipe. The end of the overflow pipe is fixedly connected with an overflow valve. A third butterfly valve is provided on the overflow pipe.

4. The multi-mode automatic exhaust and liquid adding device according to claim 3, characterized in that, The platform component includes a mobile trolley. A storage battery and a switch group are also provided on the mobile trolley. The storage battery is electrically connected to the switch group. The switch group is respectively electrically connected to the self-priming pump and the centrifugal pump.

5. The multi-mode automatic exhaust and liquid filling device according to claim 4, characterized in that, A filling port is provided at the upper part of the liquid container. A filter screen is provided in the filling port. An electronic liquid level gauge is provided in the liquid container.

6. A control method for liquid addition using the multi-mode automatic exhaust and liquid addition device according to claim 5, characterized in that, Including a liquid adding mode A, that is, a liquid adding mode with a slower liquid outflow speed; a liquid adding mode B, that is, a liquid adding mode with a faster liquid outflow speed; a liquid adding mode C, that is, a liquid adding mode with a faster liquid outflow speed and a circulating liquid adding mode into the liquid container; a liquid adding mode D, that is, a liquid adding mode with the fastest liquid outflow speed; a liquid adding mode E, that is, a fast liquid adding mode for supplementing the liquid container: The liquid adding mode A, that is, a liquid adding mode with a slower liquid outflow speed, includes the following steps: S0: Close the first butterfly valve and the second butterfly valve. Turn on the centrifugal pump and the self-priming pump in sequence. The self-priming pump sucks the air in the first liquid output pipe and the second liquid output pipe, and the outlet end of the self-priming pump outputs the air into the second self-priming pipe and the overflow valve pipe; S1: Open the second butterfly valve. The centrifugal pump pumps liquid from the external solution tank through the standby pipeline. The output end of the centrifugal pump transports the liquid to the second shunt device, the first liquid output pipe and the second liquid output pipe in sequence. The solution sucked by the self-priming pump from the second shunt device is transported to the second self-priming pipe and the overflow valve pipe in sequence. The overflow valve is opened, and the air is discharged through the overflow valve. When there is liquid flowing out of the one-way ball valve, turn off the self-priming pump; B liquid addition mode, that is, the liquid addition mode with a faster liquid outflow speed, includes the following steps: S0: Close the first butterfly valve and the second butterfly valve. Turn on the centrifugal pump and the self-priming pump in sequence. The self-priming pump sucks the air in the first liquid output pipe and the second liquid output pipe, and the outlet end of the self-priming pump outputs the air into the second self-priming pipe and the overflow valve pipe; S1: Open the second butterfly valve. The centrifugal pump pumps liquid from the external solution tank through the standby pipeline. The output end of the centrifugal pump transports the liquid to the second shunt device, the first liquid output pipe and the second liquid output pipe in sequence. The solution sucked by the self-priming pump from the second shunt device is transported to the second self-priming pipe and the overflow valve pipe in sequence. The overflow valve is opened, and the air is discharged through the overflow valve. When there is liquid flowing out of the one-way ball valve, turn off the self-priming pump; S2: After turning off the self-priming pump in the above S1, close the third butterfly valve. The centrifugal pump sucks the liquid from the external solution tank and transports the sucked liquid from the output end of the centrifugal pump to the first liquid output pipe and the second liquid output pipe in sequence, and discharges it through the one-way ball valve; C liquid addition mode, that is, the liquid addition mode with a faster liquid outflow speed and circulating liquid addition into the liquid container, includes the following steps: S0: Close the first butterfly valve and the second butterfly valve. Turn on the centrifugal pump and the self-priming pump in sequence. The self-priming pump sucks the air in the first liquid output pipe and the second liquid output pipe, and the outlet end of the self-priming pump outputs the air into the second self-priming pipe and the overflow valve pipe; S1: Open the second butterfly valve. The centrifugal pump pumps liquid from the external solution tank through the standby pipeline. The output end of the centrifugal pump transports the liquid to the second shunt device, the first liquid output pipe and the second liquid output pipe in sequence. The solution sucked by the self-priming pump from the second shunt device is transported to the second self-priming pipe and the overflow valve pipe in sequence. The overflow valve is opened, and the air is discharged through the overflow valve. When there is liquid flowing out of the one-way ball valve, turn off the self-priming pump; S2: After turning off the self-priming pump in the above S1, open the first butterfly valve. The centrifugal pump sends the liquid sucked from the external solution tank and the liquid container into the first liquid output pipe and the second liquid output pipe. The excess solution that is not discharged in time in the first liquid output pipe and the second liquid output pipe will flow to the fourth shunt device and the overflow pipe in sequence through the third shunt device, and finally flow into the liquid container through the overflow valve, and keep circulating and standby until the liquid in the external solution tank is pumped out; The D liquid addition mode, that is, the liquid addition mode with the fastest liquid outflow speed, includes the following steps: S0: Close the first butterfly ball valve and the second butterfly ball valve, and sequentially turn on the centrifugal pump and the self-priming pump. The self-priming pump sucks the air in the first liquid output pipe and the second liquid output pipe, and the outlet end of the self-priming pump outputs the air into the second self-suction pipe and the overflow valve pipe; S1: Open the second butterfly ball valve. The centrifugal pump pumps liquid from the external solution tank through the standby pipeline. The output end of the centrifugal pump sequentially transports the liquid to the second shunt device, the first liquid output pipe and the second liquid output pipe. The solution sucked by the self-priming pump from the second shunt device is sequentially transported to the second self-suction pipe and the overflow valve pipe. The overflow valve is opened, and the air is discharged through the overflow valve. When there is liquid flowing out of the one-way ball valve, turn off the self-priming pump; S2: After turning off the self-priming pump in the above S1, close the third butterfly ball valve and open the first butterfly ball valve. The centrifugal pump sucks the liquid in the external solution tank and the liquid container. The output end of the centrifugal pump sequentially transports the sucked liquid to the first liquid output pipe and the second liquid output pipe, and discharges it through the one-way ball valve; The E liquid addition mode, that is, the mode of quickly replenishing the liquid in the liquid container, includes the following steps: S0: Close the first butterfly ball valve and the second butterfly ball valve, and sequentially turn on the centrifugal pump and the self-priming pump. The self-priming pump sucks the air in the first liquid output pipe and the second liquid output pipe, and the outlet end of the self-priming pump outputs the air into the second self-suction pipe and the overflow valve pipe; S1: Open the second butterfly ball valve. The centrifugal pump pumps liquid from the external solution tank through the standby pipeline. The output end of the centrifugal pump sequentially transports the liquid to the second shunt device, the first liquid output pipe and the second liquid output pipe. The solution sucked by the self-priming pump from the second shunt device is sequentially transported to the second self-suction pipe and the overflow valve pipe. The overflow valve is opened, and the air is discharged through the overflow valve. When there is liquid flowing out of the one-way ball valve, turn off the self-priming pump; S2: After turning off the self-priming pump in the above S1, close the one-way ball valve. The centrifugal pump pumps liquid from the external solution tank through the standby pipeline respectively. The output end of the centrifugal pump sequentially transports the liquid into the first liquid output pipe and the second liquid output pipe. The solution in the first liquid output pipe will flow through the third shunt device to the fourth shunt device and the overflow valve pipe in sequence, and finally flow into the liquid container through the overflow valve.

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