CN110044444A - A kind of float level meter test device - Google Patents

Abstract

The invention discloses a test device for a float level gauge, which comprises an air chamber wall, a jack and an elastic part. The test device is arranged below the float of the float level gauge to be tested, and the air chamber formed between the air chamber wall and the jack can be Filling with compressed air, the charged compressed air can lift the jack to rise, and lift the float to the liquid level warning point, triggering the liquid level alarm. The float level gauge testing device disclosed by the invention is simple in structure and convenient to operate, on the one hand, the efficiency of the test work is improved, and on the other hand, the tester is prevented from directly entering the working environment of the float level gauge, and the safety of the tester is ensured.

Description

A float level gauge testing device

technical field

The invention relates to the field of measuring devices, in particular to a float level gauge testing device.

Background technique

The float level gauge is a tool for measuring the liquid level by using buoyancy. It has a simple structure and is easy to use. It is widely used in production and life. As a measuring tool, the float level gauge requires personnel to regularly check whether its function is normal. However, in some operating environments, the detection of the function of the float level gauge is very inconvenient, such as confined spaces, toxic spaces, flammable and explosive environments, etc. , it is difficult and dangerous for testing personnel to conduct testing.

SUMMARY OF THE INVENTION

The present invention provides a float level gauge testing device to overcome the appeal problem.

A float level gauge testing device, comprising an air chamber wall, a jack and an elastic part, the air chamber wall is a hollow cylinder with a bottom closed and a top opening, the jack is placed in the air chamber wall, and It can slide axially in the air chamber wall, the space enclosed by the jack and the air chamber wall is an air chamber, and the elastic member is placed in the air chamber and connected to the jack and the air chamber. Between the air chamber walls, the air chamber walls are provided with air inlet holes, which can be inflated into the air chamber;

The float level gauge test device is arranged below the float level gauge to be tested, and the sliding distance of the jack in the air chamber wall is greater than the distance from the float level gauge test device to the liquid level warning point.

Further, a sliding seal is formed between the jack and the air chamber wall.

Further, the top support is a hollow cylinder with a top surface closed and a bottom surface opening.

Further, the air intake hole is connected with a compressed air pipe, and compressed air can be charged into or discharged from the air chamber through the compressed air pipe, and an air valve is arranged on the compressed air pipe, and the air valve is controlled by a remote control. end control.

Further, it also includes a float measuring head, which can detect the position of the float and send the detection result to the remote control terminal.

Further, the elastic member is a spring.

The float level gauge testing device disclosed by the invention has the advantages of convenient operation and accurate results, which not only improves the test efficiency, but also avoids the testing personnel from directly entering the use environment of the float level gauge to be tested, and ensures the safety of the testing personnel.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a schematic diagram of the position of the float level gauge testing device disclosed in the present invention, showing the positional relationship between the testing device and the float when the compressed air is not charged;

2 is a schematic structural diagram of the float level gauge testing device disclosed in the present invention, showing the internal structure of the testing device when the compressed air is not charged;

Figure 3 is a schematic diagram of the position after the jack is raised, showing the positional relationship between the test device and the float after the compressed air is charged;

Figure 4 is a schematic diagram of the structure after the jack is raised, showing the internal structure of the test device after the compressed air is charged;

Figure 5 is an overall structural diagram.

FIG. 6 is a schematic diagram of another fixed position of the float level gauge test device disclosed in the present invention, showing the fixed position of the test device when it is fixed outside the probe rod.

In the picture: 1. Remote control terminal, 2. Float measuring head, 3. Air valve, 4. Compressed air pipe, 5. Probe rod, 6. Float, 7. Float level gauge test device, 8. Liquid storage tank, 701, top support, 702, elastic part, 703, air chamber, 704, air chamber wall, 705, air inlet.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

As shown in Figures 1 to 6, a test device for a float level gauge disclosed in the present invention includes an air chamber wall 704, a jack 701 and an elastic member 702. The air chamber wall 704 is a hollow cylinder with a bottom closed and a top open. The jack 701 is placed in the air chamber wall 704, and can slide axially in the air chamber wall 704, the space enclosed by the jack 701 and the air chamber wall 704 is the air chamber 703, and the elastic member 702 is placed in the air chamber 703, It is connected between the top bracket 701 and the air chamber wall 704 , and the air chamber wall 704 is provided with an air inlet hole 705 , which can inflate the air chamber 703 . The air inlet hole 705 can be arranged on the bottom surface of the air chamber wall 704 or the top surface of the jack 701, and can also be arranged on the side wall of the air chamber wall 704. However, when the air inlet hole 705 is arranged on the side wall of the air chamber wall 704, The sliding range of the jack 701 needs to be limited, and the air inlet hole 705 needs to be set outside the sliding range of the jack 701 so as not to affect the operation of the air inlet hole.

The float level gauge testing device 7 is arranged below the float 6 of the float level gauge to be tested, and the sliding distance of the jack 701 in the air chamber wall 704 is greater than the distance from the float 6 to the liquid level warning point. The test device 7 can be arranged on the probe rod 5, the hollow cylinder of the air chamber wall 704 is sleeved outside the probe rod 5, the bottom surface of the air chamber wall 704 is fixedly connected with the probe rod 5, and a hole is opened in the middle of the top support 701, which is sleeved on the probe rod 5. 5, and is slidably and sealedly connected to the probe rod 5; the testing device 7 can also be arranged outside the probe rod 5, and the hollow cylinder of the air chamber wall is directly fixed to the probe rod, as shown in FIG. 6 .

When the compressed air enters the air chamber 703 from the air intake hole 705, the jack 701 slides axially under the action of the compressed air, and at the same time stretches the elastic member 702. After the jack 701 touches the float 6, it lifts the float 6 to continue upward Slide until the float 6 is lifted to the liquid level warning point to trigger the liquid level alarm. After the compressed air in the air chamber 703 is discharged from the air chamber 703 from the air inlet hole 705 , the jack 701 is gradually restored to its original state under the action of the elastic member 702 .

Further, a sliding seal is formed between the jack 701 and the air chamber wall 704, so that the working efficiency of the compressed air can be better ensured, so that the jack can move faster during the ascending process.

Further, the jack 701 is a hollow cylinder with the top surface closed and the bottom surface open, so that the elastic member 702 has more arrangement space while ensuring the stable sliding of the jack 701 .

Further, the air inlet hole 705 is connected with the compressed air pipe 4, and the compressed air can be charged into or discharged from the air chamber 703 through the compressed air pipe 4. The compressed air pipe 4 is provided with an air valve 3, and the air valve 3 is controlled by the remote control terminal 1. .

Further, a float measuring head 2 is also included. The float measuring head 2 can detect the position of the float 6 and send the detection result to the remote control terminal 1 . The whole test process of the float level gauge is controlled by the remote control terminal 1, which prevents the tester from entering the working space of the float level gauge, which not only improves the work efficiency, but also ensures the safety of the tester.

Further, the air chamber wall 704 can be fixed on the probe rod 5 of the float level gauge.

Further, the elastic member 702 is a spring.

The working process of a float level gauge test tool disclosed by the invention is as follows: when the float level gauge needs to perform a function test, the air valve is controlled by the remote control terminal, and the air chamber is inflated through the compressed air pipe, and the air pressure in the air chamber increases, The jack slides axially in the air chamber wall, and at the same time stretches the elastic parts between the jack and the air chamber wall. After the jack hits the float, it continues to rise until the float is raised to the liquid level warning point, and the float measuring head detects the Float position, a liquid level alarm is issued, and feedback is sent to the remote control terminal. After the test results are obtained, the remote control terminal controls the air valve to discharge the compressed air in the air chamber, and the jack gradually returns to its original state under the tension of the elastic component, and the test is completed.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not 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: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention. scope.

Claims (7)

1. A float level gauge testing device, characterized in that it comprises an air chamber wall (704), a jacking (701) and an elastic member (702), and the air chamber wall (704) is a bottom surface that closes the top surface opening. A hollow cylinder, the jack (701) is placed in the air chamber wall (704), and can slide axially in the air chamber wall (704), and the jack (701) is connected to the air chamber wall (704). The space enclosed by the chamber wall (704) is an air chamber (703), and the elastic member (702) is placed in the air chamber (703) and connected to the jack (701) and the air chamber wall Between (704), the air chamber wall (704) is provided with an air inlet hole (705), which can be inflated into the air chamber (703); The float level gauge test device (7) is arranged below the float (6) of the float level gauge to be measured, and the sliding distance of the jack (701) in the air chamber wall (704) is greater than that of the float (701). 6) The distance to the liquid level warning point. 2 . The float level gauge testing device according to claim 1 , wherein a sliding seal is formed between the jack ( 701 ) and the air chamber wall ( 704 ). 3 . 3. A float level gauge testing device according to claim 1 or 2, characterized in that, the top support (701) is a hollow cylinder with a top surface closed and a bottom surface opening. 4. A float level gauge testing device according to claim 1, wherein the air inlet (705) is connected to a compressed air pipe (4), and the compressed air can pass through the compressed air pipe (4). ) into or out of the air chamber (703), the compressed air pipe (4) is provided with an air valve (3), and the air valve (3) is controlled by a remote control terminal (1). 5. A float level gauge testing device according to claim 1, characterized in that it further comprises a float measuring head (2), the float measuring head (2) can detect the position of the float (6), and Send the detection result to the remote control terminal (1). 6 . The test device for a float level gauge according to claim 1 , wherein the air chamber wall ( 704 ) can be fixed on the probe rod ( 5 ) of the float level gauge. 7 . 7. A float level gauge testing device according to claim 1, wherein the elastic member (702) is a spring.