Pressure transmitter mounting structure

Abstract

This utility model relates to the field of installation structure technology and discloses a pressure transmitter installation structure, including a transmitter body, a detection channel, a threaded connection joint, an inner ring platform, an outer ring groove, an inner ring groove, an O-ring seal, a V-ring, and a compression ring platform. Using this structure, the threaded connection joint and transmitter body are made detachable, allowing for quick replacement of the corresponding threaded connection joint according to the pipeline interface type, eliminating the need for multiple transmitters and reducing equipment application costs. The dual sealing structure of the V-ring and O-ring seal prevents leakage of high-purity gases and chemicals, ensuring detection accuracy. Components such as the threaded connection joint, O-ring seal, and V-ring can all be individually disassembled and replaced. If thread stripping or seal damage occurs, the entire transmitter does not need to be replaced, shortening maintenance time and reducing operation and maintenance costs.

Description

Technical Field

[0001] This utility model relates to the field of installation structure technology, specifically to the installation structure of a pressure transmitter. Background Technology

[0002] In pressure measurement operations within the semiconductor industry, pressure transmitters require precise connections to pipelines transporting high-purity gases and chemicals. The performance of these connections directly impacts measurement accuracy and production safety. Existing pressure transmitters generally employ integrated threaded connectors, which present significant technical drawbacks: 1. Poor adaptability: They cannot flexibly replace the corresponding threaded connectors based on the actual pipeline interface type, such as internal or external threads, requiring separate transmitters for different pipelines and increasing equipment costs; 2. Low installation tolerance: Misalignment or improper force during installation can easily lead to thread stripping and damage to the transmitter body, causing media leakage. This not only contaminates high-purity gases and chemicals but also significantly reduces pressure detection accuracy; 3. High maintenance costs: Damage to the integrated connector necessitates replacing the entire transmitter, making it impossible to repair or replace individual connecting components. Utility Model Content

[0003] This utility model mainly provides a pressure transmitter mounting structure to solve the problems of poor compatibility, easy leakage, and high maintenance cost of existing integrated threaded connection ends.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] The pressure transmitter mounting structure includes a transmitter body and a threaded connection joint detachably connected to a detection channel at the lower end of the transmitter body. The upper end of the threaded connection joint has an inner ring platform, and an outer ring groove is formed on the threaded connection joint corresponding to the outer side of the inner ring platform. An O-ring seal is placed in the outer ring groove, and a V-ring is placed in the inner ring groove. The outer end of the detection channel is used to compress the O-ring seal, and a compression ring platform is provided within the detection channel for compressing the V-ring. The O-ring seal can be selected according to actual needs and application environment, such as fluororubber, perfluoroether rubber, or silicone rubber. The V-ring can be made of a corrosion-resistant, media-compatible material with sufficient strength to prevent breakage or excessive deformation during compression, such as Hastelloy or 316L stainless steel. In use, select the appropriate threaded connector based on the interface type of the pipe to be connected. Then, embed the O-ring into the outer ring groove of the threaded connector and place the V-ring into the inner ring groove of the inner ring platform. Subsequently, place the detection channel on the outside of the inner ring platform of the threaded connector and connect the detection channel and the threaded connector. During the connection process, the compression ring platform on the inner wall of the detection channel first compresses and deforms the V-ring. The V-ring opens and tightly fits the compression ring platform during deformation, achieving internal pre-sealing. Then, the outer end face of the detection channel compresses the O-ring in the outer ring groove, causing it to elastically deform and fill the gap between the detection channel and the threaded connector, achieving external secondary sealing. If it is necessary to replace the threaded connector or maintain the seal, simply separate the detection channel from the threaded connector to replace the threaded connector, O-ring, or V-ring individually without disassembling other parts of the transmitter body. This structure allows for a detachable connection between the threaded connector and the transmitter body, enabling quick replacement of the corresponding threaded connector based on the pipeline interface type. This eliminates the need for multiple transmitters, reducing equipment application costs. The dual sealing structure of V-rings and O-rings prevents leakage of high-purity gases and chemicals, ensuring detection accuracy. Components such as the threaded connector, O-rings, and V-rings can all be individually disassembled and replaced. If thread stripping or seal damage occurs, the entire transmitter does not need to be replaced, shortening maintenance time and reducing operating costs.

[0006] Furthermore, a flange is provided on the detection channel, and an annular disc is provided on the threaded connection joint. Multiple positioning rods are provided on the annular disc, and flange holes are provided on the flange to mate with the positioning rods. Each positioning rod passes through the flange hole and is threadedly connected to a nut. "Multiple rods" refers to two or more rods. The positioning rods have external threaded sections. This structure allows for the alignment and positioning of the detection channel and the threaded connection joint via the positioning rods, and the positioning rods are locked in place by threaded nuts after passing through the flange holes. This design facilitates easy assembly and disassembly and ensures a stable connection.

[0007] Furthermore, a limiting block is provided on the positioning rod. With this structure, the optimal installation position is achieved when the lower end face of the flange is in contact with the upper end face of the limiting block, avoiding excessive compression of the O-ring or V-ring.

[0008] Furthermore, the upper end of the positioning rod is chamfered. This structure facilitates the insertion of the positioning ring into the flange hole.

[0009] Furthermore, the inner ring groove has a V-shaped cross-section. This structure enables the positioning of the V-shaped metal ring and ensures that the extrusion pressure on the V-shaped metal ring is uniformly transmitted by the extrusion ring platform, achieving reliable pre-sealing.

[0010] Beneficial effects: By changing the threaded connection to the transmitter body to a detachable connection, the corresponding threaded connection can be quickly replaced according to the pipeline interface type, eliminating the need for multiple transmitters and reducing equipment application costs; the dual sealing structure of V-ring and O-ring can prevent leakage of high-purity gases and chemicals, ensuring detection accuracy; the threaded connection, O-ring, V-ring, and other components can all be disassembled and replaced individually. If thread stripping or seal damage occurs, there is no need to replace the entire transmitter, shortening maintenance time and reducing operation and maintenance costs. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the transmitter body in this embodiment;

[0012] Figure 2 This is a schematic diagram of the threaded connection connector in this embodiment;

[0013] Figure 3 This is a schematic diagram of the threaded connection connector assembly in this embodiment.

[0014] Attached reference numerals: 1. Detection channel; 2. Threaded connection joint; 3. Inner ring platform; 4. O-ring seal; 5. V-ring; 6. Extrusion ring platform; 7. Flange; 8. Circular disc; 9. Positioning rod; 10. Nut; 11. Limiting block. Detailed Implementation

[0015] The technical solution of the pressure transmitter mounting structure involved in this utility model will be further described in detail below with reference to the embodiments.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] like Figure 1 , Figure 2 , Figure 3As shown, the pressure transmitter mounting structure of this embodiment includes a transmitter body and a threaded connection joint 2 detachably connected to the detection channel 1 at the lower end of the transmitter body. The upper end of the threaded connection joint 2 is provided with an inner ring platform 3, and an outer ring groove is formed on the threaded connection joint 2 corresponding to the outer side of the inner ring platform 3. An O-ring seal 4 is provided in the outer ring groove, and a V-shaped metal ring 5 is placed in the inner ring groove. The outer end of the detection channel 1 is used to compress the O-ring seal 4, and a compression ring platform 6 is provided in the detection channel 1 for compressing the V-shaped metal ring 5. A flange 7 is provided on the detection channel 1, and a circular disc 8 is provided on the threaded connection joint 2. Multiple positioning rods 9 are provided on the circular disc 8. A flange hole is formed on the flange 7 to mate with the positioning rods 9, and a nut 10 is threaded onto the positioning rod 9 after passing through the flange hole. A limit block 11 is provided on the positioning rod 9. A chamfer is provided at the upper end of the positioning rod 9. The inner annular groove has a V-shaped cross-section. In use, select a matching threaded connector 2 based on the interface type of the pipe to be connected. Then, embed the O-ring 4 into the outer annular groove of the threaded connector 2 and place the V-shaped metal ring 5 into the inner annular groove of the inner annular platform 3. Subsequently, place the detection channel 1 around the outer side of the inner annular platform 3 of the threaded connector 2 and connect the detection channel 1 and the threaded connector 2. During the connection process, the compression ring platform 6 on the inner wall of the detection channel 1 first compresses and deforms the V-shaped metal ring 5. The V-shaped metal ring 5 opens and tightly fits the compression ring platform 6 during deformation, achieving an inner pre-seal. Then, the outer end face of the detection channel 1 compresses the O-ring 4 in the outer annular groove, causing it to elastically deform and fill the gap between the detection channel 1 and the threaded connector 2, achieving a secondary outer seal. If it is necessary to replace the threaded connector 2 or maintain the seal, simply separate the detection channel 1 from the threaded connector 2 to replace the threaded connector 2, O-ring 4, or V-shaped metal ring 5 individually, without disassembling other components of the transmitter body. This structure allows for a detachable connection between the threaded connector 2 and the transmitter body. This enables quick replacement of the corresponding threaded connector 2 based on the pipeline interface type, eliminating the need for multiple transmitters and reducing equipment application costs. The dual sealing structure of the V-ring 5 and O-ring 4 prevents leakage of high-purity gases and chemicals, ensuring detection accuracy. Components such as the threaded connector 2, O-ring 4, and V-ring 5 can all be individually disassembled and replaced. If thread stripping or seal damage occurs, the entire transmitter does not need to be replaced, shortening maintenance time and reducing operating costs.

[0018] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge or conventional technology in the field. Therefore, this utility model will not explain the control method and circuit connection in detail.

[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pressure transmitter mounting structure, characterized in that: The device includes a transmitter body and a threaded connector detachably connected to a detection channel at the lower end of the transmitter body. The upper end of the threaded connector has an inner ring platform, and an outer ring groove is formed on the threaded connector corresponding to the outer side of the inner ring platform. An inner ring groove is formed on the inner ring platform. An O-ring is placed in the outer ring groove, and a V-shaped metal ring is placed in the inner ring groove. The outer end of the detection channel is used to compress the O-ring, and a compression ring platform is provided within the detection channel to compress the V-shaped metal ring.

2. The pressure transmitter mounting structure according to claim 1, characterized in that: A flange is provided on the detection channel, and an annular disc is provided on the threaded connection joint. Multiple positioning rods are provided on the annular disc. A flange hole is provided on the flange to cooperate with the positioning rod. The positioning rod passes through the flange hole and is threadedly connected to a nut.

3. The pressure transmitter mounting structure according to claim 2, characterized in that: A limit block is provided on the positioning rod.

4. The pressure transmitter mounting structure according to claim 2, characterized in that: The upper end of the positioning rod is chamfered.

5. The pressure transmitter mounting structure according to claim 1, characterized in that: The cross-section of the inner annular groove is V-shaped.

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