Gas pressure transmitter

Abstract

The utility model discloses a gas pressure transmitter, and belongs to the technical field of pressure transmitters. The pressure transmitter comprises a pressure transmitter body, two filtering mechanisms and a conveying pipe, gas conveying pipelines are arranged at the two ends of the pressure transmitter body, each filtering mechanism comprises a first L-shaped pipe, a connecting pipe is arranged at one end of each first L-shaped pipe, a filtering cylinder is arranged in each connecting pipe, and the filtering cylinders are arranged in the first L-shaped pipes. Second L-shaped pipes are arranged at the ends, away from the first L-shaped pipes, of the connecting pipes, the first L-shaped pipes on the two filtering mechanisms communicate with the gas conveying pipeline, and the second L-shaped pipes on the two filtering mechanisms are connected through a conveying pipe. Through the conveying pipe and the two filtering mechanisms, the pressure transmitter body does not need to be shut down when the filter screen is cleaned, the continuous working capacity of the pressure transmitter body is ensured by switching the filtering channels, the problem that in the prior art, the production efficiency is reduced due to the fact that the filter screen is cleaned when the pressure transmitter body is shut down is solved, and the production efficiency is improved. And the continuity and the stability of an industrial automation system are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pressure transmitter technical field, concretely is a kind of gas pressure transmitter. BACKGROUND

[0002] Gas pressure transmitter is widely used in industrial automation field, for converting the pressure of gas into standard signal output, to carry out monitoring and control. In the gas transmission and processing process, gas may contain impurities, particulate matter and other pollutants, these pollutants if directly into the internal pressure transmitter, can cause sensor damage, measurement accuracy decreases and other problems. Therefore, in the design of pressure transmitter, filter screen is usually arranged in its interior to filter gas, to ensure that the gas entering pressure transmitter is pure and free of impurities, filter screen design in prior art usually has detachability, so that it can be taken out for cleaning or replacement when filter screen is blocked or needs cleaning.

[0003] But the traditional way still has some deficiencies when using: specifically, since filter screen is the only way for gas to enter pressure transmitter, in cleaning filter screen, to prevent impurities in gas from entering, it is usually necessary to stop the operation of pressure transmitter, since cleaning filter screen needs to be handled by stopping, leading to pressure transmitter cannot continue to work during cleaning, affecting the overall work efficiency, therefore, a kind of gas pressure transmitter is proposed for the above situation. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of gas pressure transmitter, by the structural design of conveying pipe and two filter mechanisms, by switching filter channel, ensure the sustained working ability of pressure transmitter body, solve the problem of production efficiency decline caused by stopping to clean filter screen in prior art.

[0005] The utility model is implemented by the following technical solutions:

[0006] The utility model is a kind of gas pressure transmitter, including pressure transmitter body filter mechanism and conveying pipe, the both ends of pressure transmitter body are provided with gas pipeline, the number of filter mechanism is two, filter mechanism includes first L-shaped pipe, one end of first L-shaped pipe is provided with connecting pipe, filter cartridge is provided in connecting pipe, second L-shaped pipe is provided at the end of connecting pipe away from first L-shaped pipe, the first L-shaped pipe on two filter mechanisms is communicated with gas pipeline, and the second L-shaped pipe on two filter mechanisms is connected by conveying pipe.

[0007] Further, one end of the inner wall of connecting pipe is provided with fixed ring, and annular thread groove is formed in the fixed ring.

[0008] Further, one end of the filter cartridge is provided with an annular protrusion, an outer wall of the annular protrusion is provided with external threads, and the annular protrusion is screwed with the annular threaded groove.

[0009] Further, the filter cartridge is matched with the inner cavity of the connecting pipe, one end of the inner wall of the filter cartridge is provided with a filter screen, and the other end of the inner wall of the filter cartridge away from the filter screen is provided with a rod body.

[0010] Further, the first L-shaped pipe and the second L-shaped pipe are both provided with a blocking assembly.

[0011] Further, the connecting pipe and the filter cartridge are both made of transparent plastic material.

[0012] The utility model has the following beneficial effects:

[0013] The utility model discloses a pressure transmitter body, which comprises a conveying pipe and two filter mechanisms.

[0014] The utility model discloses a pressure transmitter body, which comprises a conveying pipe and two filter mechanisms.

[0015] Of course, implementing any product of the utility model does not necessarily need to achieve all the advantages mentioned above at the same time. DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the pressure transmitter.

[0017] Figure 2 It is an assembly structural schematic diagram of the filter mechanism.

[0018] Figure 3 It is a structural schematic diagram of the connecting pipe.

[0019] Figure 4 It is an internal structural schematic diagram of the connecting pipe.

[0020] Figure 5 It is a structural schematic diagram of the filter cartridge.

[0021] In the figure: 1, pressure transmitter body;101, gas pipeline;2, filter mechanism;201, first L-shaped pipe;202, second L-shaped pipe;203, connecting pipe;2030, fixed ring;2031, annular threaded groove;204, filter cartridge;2040, annular protrusion;2041, filter screen;2042, rod body;205, blocking assembly;3, conveying pipe. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0023] Please refer to Figures 1-5 The utility model provides a kind of technical scheme: a gas pressure transmitter, including pressure transmitter body 1 filter mechanism 2 and delivery pipe 3, the both ends of pressure transmitter body 1 are provided with gas pipeline 101.

[0024] The number of filter mechanism 2 is two, and the filter mechanism 2 includes a first L-shaped pipe 201, one end of the first L-shaped pipe 201 is provided with a connecting pipe 203, a filter cartridge 204 is arranged in the connecting pipe 203, the connecting pipe 203 is provided with a second L-shaped pipe 202 away from one end of the first L-shaped pipe 201, the first L-shaped pipe 201 on the two filter mechanisms 2 is communicated with the gas pipeline 101, and the second L-shaped pipe 202 on the two filter mechanisms 2 is connected by the delivery pipe 3.

[0025] Specifically, one end of the first L-shaped pipe 201 and the second L-shaped pipe 202 has a flange, both ends of the connecting pipe 203 have a flange, the flanges on the connecting pipe 203 are matched with the flanges of the first L-shaped pipe 201 and the second L-shaped pipe 202 respectively, and then fixed by bolts, and at the same time, a sealing rubber ring is arranged at the connection to increase the sealing property after connection.

[0026] Among them, the first L-shaped pipe 201 and the second L-shaped pipe 202 are both provided with a blocking component 205, and correspondingly, the blocking component 205 is preferably a manual valve.

[0027] In this embodiment, when in use, open two blocking components 205 on one of the filter mechanisms 2 and close two blocking components 205 on the other filter mechanism 2, so that the gas can flow into the pressure transmitter body 1 from the filter mechanism 2 with the open blocking component 205, when it is necessary to clean the inside of the filter mechanism 2 during use, first close all the blocking components 205 on the filter mechanism 2, open all the blocking components 205 of the other filter mechanism 2 which is not working, ensure the communication of the pipeline, and then make the pressure transmitter body 1 can continue to work.

[0028] One end of the inner wall of the connecting pipe 203 is provided with a fixed ring 2030, and an annular threaded groove 2031 is formed in the fixed ring 2030.

[0029] One end of the filter cartridge 204 is provided with an annular protrusion 2040, the outer wall of the annular protrusion 2040 is provided with external threads, the annular protrusion 2040 is screwed with the annular threaded groove 2031, the filter cartridge 204 is matched with the inner cavity gap of the connecting pipe 203, the inner wall of the filter cartridge 204 is provided with a filter screen 2041 at one end, and the inner wall of the filter cartridge 204 is provided with a rod body 2042 away from the filter screen 2041.

[0030] In the embodiment, by disassembling the bolt on the connecting pipe 203, the connecting pipe 203 can be disassembled from the first L-shaped pipe 201 and the second L-shaped pipe 202, then the rod body 2042 is rotated to make the filter cartridge 204 rotate, and then the annular protrusion 2040 is disassembled from the annular threaded groove 2031, that is, the filter cartridge 204 is taken out from the connecting pipe 203 to clean the impurities on the annular protrusion 2040.

[0031] Among them, the connecting pipe 203 and the filter cartridge 204 are made of transparent plastic material.

[0032] Correspondingly, by the transparent connecting pipe 203 and the filter cartridge 204, the filtering condition of the impurities in the filter cartridge 204 can be observed, and then the cleaning work of the staff can be facilitated.

[0033] The preferred embodiments of the above disclosed utility model are only used to help explain the utility model. The preferred embodiments do not describe all the details and limit the utility model to the specific embodiments. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents.

Claims

1. A gas pressure transmitter comprising a pressure transmitter body (1) and a delivery pipe (3), both ends of the pressure transmitter body (1) are provided with gas delivery pipes (101), characterized in that, Also include: Filtering mechanism (2), the number of filtering mechanism (2) is two, filtering mechanism (2) includes first L-shaped pipe (201), one end of first L-shaped pipe (201) is provided with connecting pipe (203), connecting pipe (203) is provided with filter cartridge (204), one end of connecting pipe (203) away from first L-shaped pipe (201) is provided with second L-shaped pipe (202), first L-shaped pipe (201) on two filtering mechanism (2) is communicated with gas pipeline (101), second L-shaped pipe (202) on two filtering mechanism (2) is connected through conveying pipe (3).

2. A gas pressure transmitter according to claim 1, wherein One end of the inner wall of the connecting pipe (203) is provided with a fixed ring (2030), and the fixed ring (2030) is provided with an annular threaded groove (2031).

3. A gas pressure transmitter according to claim 2, wherein, One end of the filter cartridge (204) is provided with an annular protrusion (2040), and the outer wall of the annular protrusion (2040) has external threads, and the annular protrusion (2040) is screwed with the annular threaded groove (2031) through the external threads.

4. A gas pressure transmitter according to claim 3, wherein The filter cartridge (204) is matched with the inner cavity gap of the connecting pipe (203), one end of the inner wall of the filter cartridge (204) is provided with a filter screen (2041), and one end of the inner wall of the filter cartridge (204) away from the filter screen (2041) is provided with a rod body (2042).

5. A gas pressure transmitter according to claim 1 wherein, The first L-shaped pipe (201) and the second L-shaped pipe (202) are provided with a blocking assembly (205).

6. A gas pressure transmitter according to claim 4, wherein, The connecting pipe (203) and the filter cartridge (204) are made of transparent plastic material.

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