Water injection test device for liquid level measuring instrument

Abstract

The utility model provides a water injection test device for a liquid level measuring instrument, which relates to the technical field of liquid level measuring equipment verification and comprises a base, a push handle is fixedly connected to one side of the base, and a control assembly is arranged at the top of the base. According to the utility model, the electronic valve is opened through the control terminal, water in the inner cavity of the water tank flows into the inner cavity of the liquid level measuring instrument under the action of atmospheric pressure, the electronic valve is closed through the control terminal, and the change of the water level in the inner cavity of the liquid level measuring instrument is observed; according to the design, opening and closing of the electronic valve and starting and stopping of the amphibious water pump are controlled through the control terminal, manual opening and closing of workers are not needed, the labor intensity of the workers is reduced, water still flows into the inner cavity of the water tank after the experiment of the device is completed, and manual operation is not needed after the experiment is completed. And through water transfer, the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid level measuring equipment calibration, in particular to a water injection test device for a liquid level measuring instrument. Background Art

[0002] At present, the level measurement of heaters, liquid storage tanks and other containers used in power plants mostly adopts redundant measuring devices, such as guided wave radar level gauges, float switches, transmitters, etc., which are all transmitted to DCS display via electrical signals. During the maintenance of the unit, it is necessary to conduct water injection tests on the level measurement equipment regularly to verify the accuracy of these level measurement equipment.

[0003] In the prior art, for example, Chinese patent number: CN217211054U discloses a water injection test device for a heater liquid level measuring instrument, comprising a mobile trolley, the mobile trolley is provided with a bottom plate, a lift is provided above the bottom plate, the lift and the bottom plate are supported by support columns; a water injection box is provided on the top of the lift, the lift is used to drive the water injection box to move up and down, and a drainage box is provided on the bottom plate; a water injection pipe is provided on the water injection box, a drainage pipe is provided on the drainage box, the water injection pipe and the drainage pipe are both connected to a four-way, and the other two ports of the four-way are used to connect a glass plate liquid level gauge and an equipment connecting pipe respectively. The utility model uses a liftable water injection box to perform gravity water injection, and then uses the principle of a communicating vessel to verify the measurement accuracy of the liquid level measuring instrument using a glass plate liquid level gauge, which can effectively verify the accuracy of the liquid level measuring instrument.

[0004] However, in the water injection test of the liquid level measuring instrument, the above patent found that workers manually opened and closed multiple valves, which increased the labor intensity of the workers. At the same time, the water after the test would flow into the drainage tank. If the test was to be continued, the water in the drainage tank had to be manually transferred to the water injection tank, resulting in low practicality. Utility Model Content

[0005] The purpose of the utility model is to solve the problems existing in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a liquid level measuring instrument water injection test device, comprising: a base, a push handle is fixedly connected to one side of the base, a control component is arranged on the top of the base, and a detection component is arranged on the top of the control component.

[0007] As a preferred embodiment, two braked universal casters are fixedly connected to one side of the bottom of the base, and two fixed wheels are fixedly connected to the other side of the bottom of the base.

[0008] As a preferred implementation, the control assembly includes a power supply device, a control terminal and an electronic valve, a support plate is fixedly connected to one side of the power supply device, and a charging slot is provided on one side of the power supply device.

[0009] As a preferred embodiment, the detection component includes a water tank, a through hole is opened at the bottom of one side of the water tank, a stainless steel pipe 1 is fixedly embedded inside the through hole, an amphibious water pump is provided at the other end of the stainless steel pipe 1, the output end of the amphibious water pump is connected to one end of the stainless steel pipe 1, and the input end of the amphibious water pump is connected to stainless steel pipe 2.

[0010] As a preferred embodiment, the bottom of the power supply device is fixedly connected to the surface of the base, one side of the control terminal is fixedly connected to one side of the water tank, and the surface of the electronic valve is fixedly embedded in the interior of the second stainless steel pipe.

[0011] As a preferred embodiment, the bottom of the amphibious water pump is fixedly connected to the surface of the support plate, and the bottom of the water tank is fixedly connected to the top of the power supply equipment.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] In the utility model, a storage battery is arranged in the inner cavity of the power supply device, the storage battery is electrically connected with the control terminal, the electronic valve, the charging slot and the amphibious water pump, the storage battery provides power to the control terminal, the electronic valve and the amphibious water pump, an external charging device can be connected to the charging slot to charge the storage battery, and the control terminal is electrically connected with the electronic valve and the amphibious water pump. The opening and closing of the electronic valve is controlled by the control terminal, and the start and stop of the amphibious water pump is controlled by the control terminal. First, a certain amount of water is added from the water inlet of the water tank. The initial state of the electronic valve is the closed state, and the initial state of the amphibious water pump is the stopped state. The liquid level measuring instrument water injection test device is pushed to the test site by manually holding the push handle in conjunction with the brake universal casters and directional wheels. Then, the liquid level measuring instrument is connected to one end of the stainless steel pipe 2. The electronic valve is opened by the control terminal. The water in the inner cavity of the water tank will flow into the inner cavity of the liquid level measuring instrument through the stainless steel pipe 1, the amphibious water pump and the stainless steel pipe 2 under the action of atmospheric pressure. When a certain amount of water flows into the inner cavity of the liquid level measuring instrument, the electronic valve can be closed by the control terminal to observe the changes in the water level in the inner cavity of the liquid level measuring instrument. The above operation is repeated many times to observe the changes in the water level in the inner cavity of the liquid level measuring instrument. Observe the changes in the water level in the inner cavity of the liquid level measuring instrument, take multiple groups of data to verify the accuracy of the liquid level measuring instrument, after the test is completed, the electronic valve is in the open state, and the amphibious water pump is started through the control terminal. Under the action of the amphibious water pump, the water in the inner cavity of the liquid level measuring instrument will be pumped back to the inner cavity of the water tank through stainless steel pipe 2, the amphibious water pump and stainless steel pipe 1, and then the amphibious water pump is stopped and the electronic valve is closed through the control terminal, and the liquid level measuring instrument can be removed again. This device is designed to control the opening and closing of the electronic valve and the start and stop of the amphibious water pump through the control terminal, without the need for workers to manually open and close it, reducing the labor intensity of workers. At the same time, after the experiment of this device is completed, water still flows into the inner cavity of the water tank, and there is no need to manually transfer water after the test is completed, which increases the practicality of this device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 An overview schematic diagram of a water injection test device for a liquid level measuring instrument provided by the utility model;

[0015] Figure 2 A bottom schematic diagram of a water injection test device for a liquid level measuring instrument provided by the utility model;

[0016] Figure 3 A top view of a water injection test device for a liquid level measuring instrument provided by the utility model;

[0017] Figure 4 The utility model provides a side schematic diagram of a liquid level measuring instrument water injection test device.

[0018] Legend:

[0019] 1. Base; 101. Push handle; 102. Brake swivel caster; 103. Fixed wheel; 2. Control component; 201. Power supply equipment; 202. Control terminal; 203. Electronic valve; 204. Support plate; 205. Charging slot; 3. Detection component; 301. Water tank; 302. Through hole; 303. Stainless steel pipe 1; 304. Amphibious water pump; 305. Stainless steel pipe 2. DETAILED DESCRIPTION

[0020] 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 in 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.

[0021] See also Figure 1-4 The utility model provides a technical solution: a water injection test device for a liquid level measuring instrument, comprising: a base 1, a push handle 101 is fixedly connected to one side of the base 1, a control component 2 is arranged on the top of the base 1, and a detection component 3 is arranged on the top of the control component 2.

[0022] Specifically: the electronic valve 203 is opened by the control terminal 202, and the water in the inner cavity of the water tank 301 will flow into the inner cavity of the liquid level measuring instrument under the action of atmospheric pressure. The electronic valve 203 is closed by the control terminal 202 to observe the change of the water level in the inner cavity of the liquid level measuring instrument. After the test is completed, the amphibious water pump 304 is started by the control terminal 202, and the water will be pumped back into the inner cavity of the water tank 301. The device is designed in this way to control the opening and closing of the electronic valve 203 and the start and stop of the amphibious water pump 304 through the control terminal 202, without the need for workers to manually open and close them, thereby reducing the labor intensity of the workers. After the experiment of this device is completed, water still flows into the inner cavity of the water tank 301, and there is no need to manually transfer the water after the test is completed, thereby increasing the practicality of this device.

[0023] In one embodiment, two braked universal casters 102 are fixedly connected to one side of the bottom of the base 1 , and two fixed wheels 103 are fixedly connected to the other side of the bottom of the base 1 .

[0024] Specifically: the device is easy to move by manually holding the push handle 101 in conjunction with the brake swivel caster 102 and the fixed wheel 103. The brake swivel caster 102 is a common swivel wheel with a fixed brake structure in the prior art, which can be fixed when stopped to prevent the swivel wheel from moving. The specific structure is not described here.

[0025] In one embodiment, the control component 2 includes a power supply device 201 , a control terminal 202 and an electronic valve 203 . A support plate 204 is fixedly connected to one side of the power supply device 201 , and a charging slot 205 is provided on one side of the power supply device 201 .

[0026] Specifically: the external charging device can be connected to the charging slot 205 to charge the battery in the inner cavity of the power supply device 201 to ensure that the device can continue to perform the test.

[0027] In one embodiment, the detection component 3 includes a water tank 301, a through hole 302 is opened at the bottom of one side of the water tank 301, a stainless steel pipe 303 is fixedly embedded inside the through hole 302, an amphibious water pump 304 is provided at the other end of the stainless steel pipe 303, the output end of the amphibious water pump 304 is connected to one end of the stainless steel pipe 303, and the input end of the amphibious water pump 304 is connected to the stainless steel pipe 2 305.

[0028] Specifically: a liquid level measuring instrument is connected to one end of the stainless steel pipe 305, and the electronic valve 203 is opened through the control terminal 202. Under the action of atmospheric pressure, the water in the inner cavity of the water tank 301 will pass through the stainless steel pipe 303, the amphibious water pump 304 and the stainless steel pipe 305 and flow into the inner cavity of the liquid level measuring instrument. When a certain amount of water flows into the inner cavity of the liquid level measuring instrument, the electronic valve 203 can be closed through the control terminal 202 to observe the changes in the water level in the inner cavity of the liquid level measuring instrument.

[0029] In one embodiment, the bottom of the power supply device 201 is fixedly connected to the surface of the base 1, one side of the control terminal 202 is fixedly connected to one side of the water tank 301, and the surface of the electronic valve 203 is fixedly embedded in the interior of the stainless steel pipe 305.

[0030] Specifically: 202 is electrically connected to the electronic valve 203 and the amphibious water pump 304. The opening and closing of the electronic valve 203 is controlled by the control terminal 202, and the start and stop of the amphibious water pump 304 is controlled by the control terminal 202.

[0031] In one embodiment, the bottom of the amphibious water pump 304 is fixedly connected to the surface of the support plate 204 , and the bottom of the water tank 301 is fixedly connected to the top of the power supply device 201 .

[0032] Specifically, the support plate 204 is fixedly connected to the amphibious water pump 304 for fixing the amphibious water pump 304 , and at the same time assists in fixing the stainless steel pipe 2 305 and the stainless steel pipe 1 303 connected to both ends of the amphibious water pump 304 .

[0033] Working principle: A battery is provided in the inner cavity of the power supply device 201, and the battery is electrically connected to the control terminal 202, the electronic valve 203, the charging slot 205 and the amphibious water pump 304. The battery provides power to the control terminal 202, the electronic valve 203 and the amphibious water pump 304. An external charging device can be connected to the charging slot 205 to charge the battery. The control terminal 202 is electrically connected to the electronic valve 203 and the amphibious water pump 304. The opening and closing of the electronic valve 203 is controlled by the control terminal 202, and the start and stop of the amphibious water pump 304 is controlled by the control terminal 202. First, a certain amount of water is added from the water inlet of the water tank 301. The initial state of the electronic valve 203 is the closed state, and the initial state of the amphibious water pump 304 is the stopped state. The liquid level measuring instrument water injection test device is pushed to the test site by manually holding the push handle 101 in conjunction with the brake universal caster 102 and the directional wheel 103, and the brake universal caster 102 is locked. Then, the liquid level measuring instrument is connected to one end of the stainless steel pipe 2 305, and the electronic valve 203 is opened by the control terminal 202. The water in the inner cavity of the water tank 301 will flow into the inner cavity of the liquid level measuring instrument through the stainless steel pipe 1 303, the amphibious water pump 304 and the stainless steel pipe 2 305 under the action of atmospheric pressure. When a certain amount of water flows into the inner cavity of the liquid level measuring instrument, the electronic valve 203 can be closed by the control terminal 202 to observe the change of the water level in the inner cavity of the liquid level measuring instrument. Repeat the above operation for many times, observe the change of the water level in the inner cavity of the liquid level measuring instrument, take multiple sets of data to verify the accuracy of the liquid level measuring instrument, after the test is completed, the electronic valve 203 is in the open state, and the amphibious water pump 304 is started by the control terminal 202. Under the action of the amphibious water pump 304, the water in the inner cavity of the liquid level measuring instrument will be pumped back to the inner cavity of the water tank 301 through the stainless steel pipe 2 305, the amphibious water pump 304 and the stainless steel pipe 1 303, and then the amphibious water pump 304 is stopped and the electronic valve 203 is closed by the control terminal 202, and the liquid level measuring instrument can be removed again. In this way, the device is designed to control the opening and closing of the electronic valve 203 and the start and stop of the amphibious water pump 304 through the control terminal 202, without the need for workers to manually open and close, thereby reducing the labor intensity of workers. At the same time, after the test of this device is completed, water still flows into the inner cavity of the water tank 301, without the need for manual water transfer, thereby increasing the practicality of this device.

[0034] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A water injection test device for a liquid level measuring instrument, characterized in that: include: A base (1), one side of the base (1) is fixedly connected to a push handle (101), a control component (2) is arranged on the top of the base (1), and a detection component (3) is arranged on the top of the control component (2).

2. A liquid level measuring instrument water injection test device according to claim 1, characterized in that: One side of the bottom of the base (1) is fixedly connected to two universal casters (102) with brakes, and the other side of the bottom of the base (1) is fixedly connected to two directional wheels (103).

3. A liquid level measuring instrument water injection test device according to claim 1, characterized in that: The control component (2) comprises a power supply device (201), a control terminal (202) and an electronic valve (203); a support plate (204) is fixedly connected to one side of the power supply device (201); and a charging slot (205) is provided on one side of the power supply device (201).

4. A liquid level measuring instrument water injection test device according to claim 1, characterized in that: The detection component (3) comprises a water tank (301), a through hole (302) is provided at the bottom of one side of the water tank (301), a stainless steel pipe (303) is fixedly embedded inside the through hole (302), an amphibious water pump (304) is provided at the other end of the stainless steel pipe (303), an output end of the amphibious water pump (304) is connected to one end of the stainless steel pipe (303), and an input end of the amphibious water pump (304) is connected to a stainless steel pipe (305).

5. A liquid level measuring instrument water injection test device according to claim 3, characterized in that: The bottom of the power supply device (201) is fixedly connected to the surface of the base (1), one side of the control terminal (202) is fixedly connected to one side of the water tank (301), and the surface of the electronic valve (203) is fixedly embedded in the interior of the second stainless steel pipe (305).

6. A water injection test device for a liquid level measuring instrument according to claim 4, characterized in that: The bottom of the amphibious water pump (304) is fixedly connected to the surface of the support plate (204), and the bottom of the water tank (301) is fixedly connected to the top of the power supply device (201).

Images