Electronic-grade hydrogen peroxide automatic filling system

Abstract

The utility model discloses an electronic-grade hydrogen peroxide automatic filling system which comprises a weighing device, and a finished product storage tank is arranged on the weighing device. The input end of the conveying pump communicates with the output end of the finished product storage tank; the input end of the liquid level sensing filling mechanism is communicated with the output end of the conveying pump; and the control device is electrically connected with the weighing device and the conveying pump, and the control device can compare the weight value measured by the weighing device with a preset weight value and control the conveying pump to be opened or closed according to a comparison result. The weighing device is arranged to monitor the weight of the electronic-grade hydrogen peroxide in the finished product storage tank in real time, the control device is interlocked with the weighing device and the conveying pump, only the target filling amount needs to be input into the control device during filling, and when the weighing device detects that the weight of the output hydrogen peroxide reaches the target filling amount, the electronic-grade hydrogen peroxide is conveyed to the finished product storage tank. And the control device can automatically control the conveying pump to stop running to finish filling.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen peroxide filling, in particular to an electronic-grade hydrogen peroxide automatic filling system. Background Art

[0002] The finished hydrogen peroxide products finally produced by the electronic grade hydrogen peroxide production system are stored in finished product storage tanks. When tank trucks are used for filling, they need to be delivered to tank trucks through pipelines by delivery pumps. The filling process needs to be completed by manual operation and control, but if there are operating errors or instrument failures, it is easy to cause the electronic grade hydrogen peroxide to be full of liquid, resulting in production safety accidents and environmental pollution.

[0003] The prior art with patent announcement number CN218145838U discloses a remote automatic filling cut-off device for a liquid chlorine tank truck. Through the design that a through pipe and a distance sensor are fixedly installed at the lower end of the cover plate, and the distance sensor is electrically connected to the liquid chlorine pump, when the liquid chlorine is filled, the floating block will rise with the rise of the liquid level. When the distance set by the distance sensor is reached, a signal is sent to stop the liquid chlorine pump to achieve the purpose of automatic cut-off and prevent overflow and leakage caused by negligence of personnel. It avoids the possibility of leakage of the tank truck full of liquid, but when the target filling volume of the tank truck is less than the full load, it cannot achieve the purpose of automatic filling cut-off, and manual cut-off control is still required. If the filling volume error is large, refilling is required, which increases the workload. Summary of the invention

[0004] The utility model aims to solve at least one of the above-mentioned technical problems and provides an electronic-grade hydrogen peroxide automatic filling system, which can automatically control the filling according to the filling amount and prevent overflow.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] An electronic-grade hydrogen peroxide automatic filling system comprises a weighing device, on which a finished product storage tank is provided; a delivery pump, whose input end is connected to the output end of the finished product storage tank; a liquid level sensing filling mechanism, whose input end is connected to the output end of the delivery pump; and a control device, which is electrically connected to the weighing device and the delivery pump, and can compare the weight value measured by the weighing device with a preset weight value, and control the delivery pump to be turned on or off according to the comparison result.

[0007] As an improvement of the above technical solution, the weighing device includes a weighing platform, a weighing sensor is provided on the weighing platform, the finished product storage tank is arranged on the weighing sensor, and the control device can compare the weight value measured by the weighing sensor with the preset weight value, and control the opening or closing of the delivery pump according to the comparison result.

[0008] As an improvement of the above technical solution, a liquid outlet pipe is provided on the output end of the finished product storage tank, and an automatic control valve is provided on the liquid outlet pipe. The automatic control valve is electrically connected to the control device. The control device can compare the weight value measured by the weighing device with the preset weight value, and control the opening or closing of the automatic control valve according to the comparison result.

[0009] As an improvement of the above technical solution, the control device includes a central processing unit and a controller electrically connected to each other, the weighing sensor is electrically connected to the central processing unit, the delivery pump and the automatic control valve are both electrically connected to the controller, the central processing unit can receive the weight value sent by the weighing sensor, and compare the weight value with an internally preset weight value, the controller can receive a comparison result signal sent by the central processing unit, and control the opening or closing of the delivery pump and the automatic control valve respectively according to the comparison result.

[0010] As an improvement of the above technical solution, the liquid level sensing filling mechanism includes a filling frame and a filling head. The filling head is installed on the filling frame through a lifting assembly, and the input end of the filling head is connected to the output end of the delivery pump.

[0011] As an improvement of the above technical solution, the lifting assembly includes a lifting plate, a lifting motor is provided on the filling frame, the lifting plate is installed on the output end of the lifting motor, and the filling head is installed on the bottom of the lifting plate.

[0012] As an improvement of the above technical solution, the liquid level sensing filling mechanism also includes a telescopic liquid level sensing rod, which is movably inserted on the filling head and the lower end of which can be extended into the filling port of the tank truck. A telescopic motor is provided on the filling frame, and the output end of the telescopic motor is connected to the upper end of the telescopic liquid level sensing rod.

[0013] As an improvement of the above technical solution, a liquid inlet channel is opened on the lower end of the telescopic liquid level sensing rod, and a liquid level sensor is provided inside the liquid inlet channel. The liquid level sensor is electrically connected to the delivery pump and can control the opening or closing of the delivery pump.

[0014] As an improvement of the above technical solution, manual control valves are provided on both ends of the liquid outlet pipe located at the automatic control valve and on the liquid outlet end of the delivery pump.

[0015] Compared with the prior art, the beneficial effects of this application are:

[0016] The utility model discloses an automatic filling system for electronic-grade hydrogen peroxide. A weighing device is provided to monitor the weight of the electronic-grade hydrogen peroxide in the finished product storage tank in real time. The weighing device and the delivery pump are interlocked through a control device. During filling, only the target filling amount needs to be input into the control device. When the weighing device detects that the output weight of the hydrogen peroxide reaches the target filling amount, the control device can automatically control the delivery pump to stop running and end the filling. In addition, the liquid level sensing filling mechanism can also monitor the liquid level in the tank truck at the same time. When the liquid level reaches the detection height, the delivery pump can also stop working to prevent overflow caused by automatic filling failure or other reasons. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0018] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the liquid level sensing filling mechanism in the embodiment of the utility model;

[0020] Figure 3 It is a cross-sectional view of the liquid level sensing filling mechanism in the embodiment of the utility model;

[0021] Figure 4 for Figure 3 Enlarged view of part A. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is referred to as being "set in the middle", it does not only mean being set in the middle, as long as it is not set at both ends within the range defined by the middle. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0025] like Figures 1 to 4 As shown, the utility model provides an electronic-grade hydrogen peroxide automatic filling system, including a weighing device 10, on which a finished product storage tank 11 is provided; a delivery pump 20, whose input end is connected to the output end of the finished product storage tank 11; a liquid level sensing filling mechanism 30, whose input end is connected to the output end of the delivery pump 20; a control device, which is electrically connected to the weighing device 10 and the delivery pump 20, and the control device can compare the weight value measured by the weighing device 10 with the preset weight value, and control the opening or closing of the delivery pump 20 according to the comparison result. This system can be used for tank truck filling, and of course, it can also be used for filling containers such as filling barrels, and it only needs to connect the filling port of the container to be filled with the output end of the liquid level sensing filling mechanism 30.

[0026] In a specific embodiment of the present application, the weighing device 10 includes a weighing platform 12, a weighing sensor is provided on the weighing platform 12, the finished product storage tank 11 is provided on the weighing sensor, and the control device can compare the weight value measured by the weighing sensor with the preset weight value, and control the opening or closing of the delivery pump 20 according to the comparison result. Among them, the weighing sensor can be a pressure weighing sensor to measure the weight of the finished product storage tank 11 in real time and determine the output of hydrogen peroxide.

[0027] In order to further strengthen the automatic control, a liquid outlet pipe 13 is provided on the output end of the finished product storage tank 11, and an automatic control valve 14 is provided on the liquid outlet pipe 13. The automatic control valve 14 is electrically connected to the control device, and the control device can compare the weight value measured by the weighing device 10 with the preset weight value, and control the opening or closing of the automatic control valve 14 according to the comparison result. In addition, manual control valves are provided on both ends of the liquid outlet pipe 13 located at the automatic control valve 14 and on the liquid outlet end of the delivery pump 20, which is also convenient for manual control in some cases.

[0028] Specifically, the control device includes a central processor and a controller electrically connected to each other, the weighing sensor is electrically connected to the central processor, the delivery pump 20 and the automatic control valve 14 are both electrically connected to the controller, the central processor can receive the weight value sent by the weighing sensor, and compare the weight value with the internal preset weight value, the controller can receive the comparison result signal sent by the central processor, and control the opening or closing of the delivery pump 20 and the automatic control valve 14 respectively according to the comparison result. The central processor and the controller can both adopt the existing technology, and the control device can also include a display terminal electrically connected to the central processor, so that the operator can input the target filling amount, and the weighing value can be displayed in real time.

[0029] See also Figure 3 and Figure 4 In a specific embodiment of the present application, the liquid level sensing filling mechanism 30 includes a filling frame 31 and a filling head 32. The filling head 32 is installed on the filling frame 31 through a lifting assembly, and the input end of the filling head 32 is connected to the output end of the delivery pump 20. Since the heights of tank trucks with different capacities are different, the lifting assembly can adjust the filling head 32 according to the height of the tank truck to ensure that the filling head 32 can be accurately docked with the input port of the tank truck to increase the sealing of the connection. Specifically, the lifting assembly includes a lifting plate 33, and a lifting motor 34 is provided on the filling frame 31. The lifting plate 33 is installed on the output end of the lifting motor 34, and the filling head 32 is installed on the bottom of the lifting plate 33. Among them, the filling frame 31 includes a frame leg and a frame plate arranged on the top of the frame leg. The two ends of the lifting plate 33 can be movably mounted on the frame leg to achieve movable lifting, and the lifting motor 34 is installed on the frame plate. The filling head 32 can adopt an existing tank truck filling quick connector.

[0030] In a specific embodiment of the present application, the liquid level sensing filling mechanism 30 also includes a telescopic liquid level sensing rod 35, which is movably inserted into the filling head 32, and the lower end of which can be extended into the filling port of the tank truck. A telescopic motor 36 is provided on the filling frame 31, and the output end of the telescopic motor 36 is connected to the upper end of the telescopic liquid level sensing rod 35. Since the tank trucks have different heights and different filling volumes, the height of the warning liquid level during the filling process is different. The height of the telescopic liquid level sensing rod 35 can be adjusted by the telescopic motor 36 to adapt to different warning liquid level heights. Specifically, a liquid inlet channel 37 is provided on the lower end of the telescopic liquid level sensing rod 35, and a liquid level sensor 38 is provided inside the liquid inlet channel 37. The liquid level sensor 38 is electrically connected to the delivery pump 20 and can control the opening or closing of the delivery pump 20. The liquid level sensor 38 is located inside the liquid inlet channel 37. The hydrogen peroxide discharged downward from the filling head 32 during the filling process will not affect the sensing. Only when the liquid level reaches the liquid inlet channel 37, the hydrogen peroxide will enter the liquid inlet channel 37, ensuring the accuracy of the detection. When the hydrogen peroxide reaches the liquid level sensor 38, the delivery pump 20 can be turned off to prevent the full liquid from overflowing.

[0031] The utility model discloses an automatic filling system for electronic-grade hydrogen peroxide. A weighing device 10 is provided to monitor the weight of the electronic-grade hydrogen peroxide in a finished product storage tank 11 in real time. The weighing device 10 and the delivery pump 20 are interlocked through a control device. During filling, only a target filling amount needs to be input into the control device. When the weighing device 10 detects that the output weight of the hydrogen peroxide reaches the target filling amount, the control device can automatically control the delivery pump 20 to stop running and end the filling. In addition, a liquid level sensing filling mechanism 30 can also monitor the liquid level in the tank truck at the same time. When the liquid level reaches the detection height, the delivery pump 20 can also stop working to prevent overflow caused by automatic filling failure or other reasons.

[0032] The above embodiments are only used to illustrate the technical solution of the utility model but not to limit it. Any modification or equivalent substitution that does not deviate from the spirit and scope of the utility model shall be included in the scope of the technical solution of the utility model.

Claims

1. An electronic grade hydrogen peroxide automatic filling system, characterized in that: include A weighing device, wherein the weighing device is provided with a finished product storage tank; A delivery pump, the input end of which is connected to the output end of the finished product storage tank; A liquid level sensing filling mechanism, the input end of which is connected to the output end of the delivery pump; A control device is electrically connected to the weighing device and the delivery pump. The control device can compare the weight value measured by the weighing device with a preset weight value, and control the delivery pump to be turned on or off according to the comparison result.

2. The electronic grade hydrogen peroxide automatic filling system according to claim 1, characterized in that: The weighing device includes a weighing platform, on which a weighing sensor is provided, and the finished product storage tank is provided on the weighing sensor. The control device can compare the weight value measured by the weighing sensor with a preset weight value, and control the opening or closing of the delivery pump according to the comparison result.

3. An electronic grade hydrogen peroxide automatic filling system according to claim 2, characterized in that: A liquid outlet pipe is provided on the output end of the finished product storage tank, and an automatic control valve is provided on the liquid outlet pipe. The automatic control valve is electrically connected to a control device. The control device can compare the weight value measured by the weighing device with a preset weight value, and control the opening or closing of the automatic control valve according to the comparison result.

4. The electronic grade hydrogen peroxide automatic filling system according to claim 3 is characterized in that: The control device includes a central processing unit and a controller electrically connected to each other, the weighing sensor is electrically connected to the central processing unit, and the delivery pump and the automatic control valve are both electrically connected to the controller. The central processing unit can receive the weight value sent by the weighing sensor and compare the weight value with an internally preset weight value. The controller can receive a comparison result signal sent by the central processing unit and control the opening or closing of the delivery pump and the automatic control valve respectively according to the comparison result.

5. The electronic grade hydrogen peroxide automatic filling system according to claim 1 is characterized in that: The liquid level sensing filling mechanism comprises a filling frame and a filling head. The filling head is installed on the filling frame through a lifting assembly. The input end of the filling head is connected to the output end of the delivery pump.

6. The electronic grade hydrogen peroxide automatic filling system according to claim 5, characterized in that: The lifting assembly comprises a lifting plate, a lifting motor is arranged on the filling frame, the lifting plate is mounted on the output end of the lifting motor, and the filling head is mounted on the bottom of the lifting plate.

7. The electronic grade hydrogen peroxide automatic filling system according to claim 5, characterized in that: The liquid level sensing filling mechanism also includes a telescopic liquid level sensing rod, which is movably inserted on the filling head and the lower end of which can extend into the filling port of the tank truck. A telescopic motor is provided on the filling frame, and the output end of the telescopic motor is connected to the upper end of the telescopic liquid level sensing rod.

8. The electronic grade hydrogen peroxide automatic filling system according to claim 7, characterized in that: A liquid inlet channel is provided on the lower end of the telescopic liquid level sensing rod, a liquid level sensor is provided inside the liquid inlet channel, the liquid level sensor is electrically connected to the delivery pump, and can control the opening or closing of the delivery pump.

9. The electronic grade hydrogen peroxide automatic filling system according to claim 3, characterized in that: The liquid outlet pipe is located at both ends of the automatic control valve and the liquid outlet end of the delivery pump is provided with manual control valves.

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