Liquid level meter back flushing device

Abstract

The utility model provides a liquid level meter back flushing device, and mainly relates to the field of back flushing equipment. A liquid level meter blowback device comprises a pressure gauge and a three-way connecting pipe, a connecting pipe is fixedly arranged at the bottom of the pressure gauge, the bottom of the connecting pipe is fixedly connected with the top of the three-way connecting pipe, a first pipeline is fixedly arranged on the left side of the three-way connecting pipe, and a second pipeline is fixedly arranged on the left side of the three-way connecting pipe; baffles are symmetrically hinged to the interior of the buffer cavity. The liquid level meter has the advantages of being simple in structure, convenient to install and use, beneficial to improving the display accuracy of the liquid level meter, beneficial to operation of technicians, and capable of reducing danger caused by full tanks or empty tanks; the diameter of the inner wall of the pipeline is controlled by changing the opening angle of the two baffles, so that the air flow passing pressure is reduced, and the damage to measuring parts such as a liquid level meter is avoided.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of back-flushing equipment, in particular to a back-flushing device for a liquid level gauge. Background Art

[0002] During the zeroing process of the transmitter, there is no airflow in the pipe connected to the reactor to continue to input into the reactor, which can easily cause the material to backflow into the pipe, causing the material to cool and solidify and block the pipe, causing the level meter to malfunction. The high failure rate is prone to deviations, which seriously affects the measurement accuracy of the level meter and is not conducive to the operation and control of the process personnel. When using a backflush device for cleaning, the existing backflush device is prone to damage the instrument when the pressure is too high due to the unstable gas source pressure. Utility Model Content

[0003] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0004] A backflush device for a level gauge comprises a pressure gauge and a three-way connecting pipe, wherein a connecting pipe is fixedly arranged at the bottom of the pressure gauge, and the bottom of the connecting pipe is fixedly connected to the top of the three-way connecting pipe, a first pipeline is fixedly arranged on the left side of the three-way connecting pipe and a second pipeline is fixedly arranged on the right side, a buffer chamber is arranged on the second pipeline, and a baffle is symmetrically hinged inside the buffer chamber.

[0005] The buffer cavity is rectangular in shape, arc grooves are symmetrically arranged on the upper and lower sides of the buffer cavity, a rotating shaft is fixedly arranged at one end of the baffle plate and is arranged coaxially with the arc groove, and the baffle plate is rotatably connected to the inner wall of the buffer cavity.

[0006] A first protrusion is arranged on the valley bottom of the baffle plate, and second protrusions are symmetrically arranged on upper and lower sides of the buffer cavity. The second protrusion is fixedly connected to the first protrusion via a spring.

[0007] The two side surfaces of the baffle plate are in contact with the inner wall of the buffer cavity, and the other end of the baffle plate is chamfered.

[0008] Compared with the prior art, the beneficial effects of the utility model are:

[0009] The utility model has a simple structure and is easy to install and use, which is beneficial to improving the accuracy of the liquid level gauge display, facilitating the operation of process personnel, and reducing the danger caused by a full tank or an empty tank. The diameter of the inner wall of the pipeline is controlled by changing the opening angle of the two baffles, thereby reducing the pressure of the airflow passing through, thereby avoiding damage to measuring components such as the liquid level gauge. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Attached Figure 1 It is a schematic diagram of the overall angle structure of the utility model;

[0011] Attached Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0012] Attached Figure 3 It is a partial enlarged structural schematic diagram of part Ⅰ of the utility model.

[0013] The numbers shown in the accompanying drawings are: 1, pressure gauge; 2, three-way connecting pipe; 3, connecting pipe; 4, first pipeline; 5, second pipeline; 6, buffer chamber; 7, baffle; 8, spring. DETAILED DESCRIPTION

[0014] The utility model is further described in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the utility model and are not used to limit the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by this application.

[0015] In conjunction with the accompanying drawings, a liquid level gauge backflushing device includes a pressure gauge 1 and a three-way connecting pipe 2. A connecting pipe 3 is fixedly arranged at the bottom of the pressure gauge 1, and the bottom of the connecting pipe 3 is fixedly connected to the top of the three-way connecting pipe 2. A first pipeline 4 is fixedly arranged on the left side of the three-way connecting pipe 2 and a second pipeline 5 is fixedly arranged on the right side. A buffer chamber 6 is arranged on the second pipeline 5, and a baffle 7 is symmetrically hinged inside the buffer chamber 6.

[0016] The buffer chamber 6 is rectangular in shape, arc grooves are symmetrically arranged on the upper and lower sides of the buffer chamber 6, a rotating shaft is fixedly arranged at one end of the baffle plate 7 and is arranged coaxially with the arc groove, and the baffle plate 7 is rotatably connected to the inner wall of the buffer chamber 6.

[0017] A first protrusion is arranged at the bottom of the baffle 7 , and second protrusions are symmetrically arranged at upper and lower sides of the buffer cavity 6 . The second protrusion is fixedly connected to the first protrusion via a spring 8 .

[0018] The two side surfaces of the baffle plate 7 abut against the inner wall of the buffer chamber 6, and the other end of the baffle plate 7 is chamfered. This structural design ensures the sealing performance when the ends of the two baffle plates 7 are in contact. Under normal circumstances, the two baffle plates 7 are in a separated state.

[0019] When the device is in use, the first pipeline 4 is connected to an external gas source, and the second pipeline 5 is connected to a liquid level meter to back-blow it. When the source pressure is too large, the airflow blows the two baffles toward the middle, changing the diameter of the pipe through which the airflow passes, thereby reducing the pressure of the gas source.

[0020] 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 it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A liquid level gauge backflush device, comprising a pressure gauge (1) and a three-way connecting pipe (2), characterized in that: A connecting pipe (3) is fixedly arranged at the bottom of the pressure gauge (1), the bottom of the connecting pipe (3) is fixedly connected to the top of the three-way connecting pipe (2), a first pipeline (4) is fixedly arranged on the left side of the three-way connecting pipe (2) and a second pipeline (5) is fixedly arranged on the right side, a buffer chamber (6) is arranged on the second pipeline (5), and a baffle (7) is symmetrically hinged inside the buffer chamber (6).

2. A liquid level gauge backflush device according to claim 1, characterized in that: The buffer chamber (6) is arranged in a rectangular shape, arc grooves are symmetrically arranged on the upper and lower sides of the buffer chamber (6), a rotating shaft is fixedly arranged at one end of the baffle plate (7) and is arranged coaxially with the arc groove, and the baffle plate (7) is rotatably connected to the inner wall of the buffer chamber (6).

3. A liquid level gauge backflush device according to claim 2, characterized in that: A first convex block is arranged at the bottom of the valley on the baffle (7), and second convex blocks are symmetrically arranged on the upper and lower sides of the buffer cavity (6), and the second convex block is fixedly connected to the first convex block via a spring (8).

4. A liquid level gauge backflush device according to claim 3, characterized in that: Two side surfaces of the baffle plate (7) abut against the inner wall of the buffer chamber (6), and the other end of the baffle plate (7) is chamfered.

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