CN-224216211-U - Pressure guide tube structure and pressure measuring device

CN224216211UCN 224216211 UCN224216211 UCN 224216211UCN-224216211-U

Abstract

The utility model relates to a pressure guiding pipe structure and a pressure measuring device, and relates to the technical field of measuring instruments. The pressure guide pipe structure comprises a barrel component, a guide pipe component and an adsorption component, wherein the guide pipe component penetrates through the barrel component, the guide pipe component is configured to enable pressure taking media to flow, the adsorption component is arranged on the outer wall of the guide pipe component and used for adsorbing impurities in the pressure taking media, the drying component is arranged on the outer wall of the guide pipe component and used for adsorbing moisture in the pressure taking media, the drying component and the adsorption component are arranged at intervals along the axial direction of the barrel component so as to divide the barrel component into a first cavity, a second cavity and a third cavity which are sequentially arranged along the axial direction and communicated with each other, and the first cavity and the third cavity are respectively communicated with the guide pipe component. The technical scheme disclosed by the utility model can avoid the interference of impurities and the like in the pressure taking medium on the measurement precision, and ensure that the pressure guide tube can accurately transmit the pressure source to the measuring instrument.

Inventors

DING JIE
LI ZHIPING
XIE LIMEI
GONG SHIXIN
ZHANG HUAJUN
TANG SHUIBING

Assignees

中国石油化工股份有限公司
中国石油化工股份有限公司西南油气分公司

Dates

Publication Date: 20260508
Application Date: 20250415

Claims (10)

1.A pressure tube structure, comprising: a barrel assembly; The guide pipe assembly penetrates through the cylinder assembly and is coaxially arranged with the cylinder assembly, and the guide pipe assembly is configured to enable pressure taking medium to flow; an adsorption component arranged on the outer wall of the conduit component and used for adsorbing impurities in the pressure taking medium, and The drying assembly is arranged on the outer wall of the conduit assembly and used for absorbing moisture in the pressure taking medium, the drying assembly and the absorbing assembly are arranged at intervals along the axial direction of the cylinder assembly, so that the cylinder assembly is divided into a first cavity, a second cavity and a third cavity which are sequentially arranged along the axial direction and communicated with each other, and the first cavity and the third cavity are respectively communicated with the conduit assembly.
2. The impulse piping structure of claim 1, wherein the adsorption assembly comprises: An adsorption box arranged on the outer wall of the catheter assembly and provided with a plurality of first through holes penetrating through the adsorption box in the axial direction, and The adsorbent is arranged in the adsorption box.
3. The impulse piping structure of claim 1, wherein said drying assembly comprises: A drying box arranged on the outer wall of the duct assembly, the drying box being provided with a plurality of second through holes penetrating the drying box in the axial direction, and And the drying agent is arranged in the drying box.
4. A pressure tube structure as claimed in any one of claims 1 to 3, wherein the barrel assembly includes first and second ends disposed opposite in the axial direction, the conduit assembly including: The inlet impulse pipe is arranged at the first end and communicated with the first cavity; an outlet impulse pipe arranged at the second end and communicated with the third cavity body, and One end of the single valve group is arranged on the inlet impulse pipe, and the other end of the single valve group is inserted into the outlet impulse pipe; the adsorption component and the drying component are arranged on the outer wall of the single valve group.
5. The impulse piping structure of claim 4, wherein said single valve block comprises: one end of the shell is in threaded connection with the inlet impulse pipe, and the other end of the shell is inserted into the outlet impulse pipe; An elastic member disposed in the housing, and And the sealing ball is arranged in the shell and connected with the elastic piece, and the sealing ball can move along the axial direction under the action of the elastic force of the elastic piece so as to enable the sealing ball to be close to or far away from the inlet impulse tube.
6. The impulse piping structure of claim 5, wherein said housing comprises: A first housing section into which one end of the inlet impulse pipe is inserted and screwed, and The second shell section is arranged at one end of the first shell section, which is close to the outlet impulse pipe, and the diameter of the second shell section is gradually reduced along the axial direction; One end of the elastic piece is connected with the inner wall of the second shell section, and the sealing ball is positioned in the first shell section.
7. The impulse piping structure of claim 4, wherein said barrel assembly comprises: a main cylinder, the first end being located on the main cylinder, and The auxiliary cylinder body is in threaded connection with the main cylinder body, and the second end of the auxiliary cylinder body is positioned on the auxiliary cylinder body; the inlet pressure guide pipe penetrates through the main cylinder body, and the outlet pressure guide pipe penetrates through the auxiliary cylinder body.
8. The impulse piping structure of claim 4, wherein said inlet impulse piping is provided with a plurality of impulse through holes so that said inlet impulse piping communicates with said first chamber.
9. The impulse piping structure of claim 6, wherein said outlet impulse piping comprises: a first pipe section arranged on the second end, and The second pipe body section is arranged at one end, far away from the second end, of the first pipe body section, the diameter of the second pipe body section gradually decreases along the axial direction, and an annular gap is formed between the outer wall of the second pipe body section and the inner wall of the second pipe body section, so that the third cavity is communicated with the outlet impulse pipe.
10. A pressure measurement device comprising a impulse pipe structure as claimed in any one of the claims 1-9.

Description

Pressure guide tube structure and pressure measuring device Technical Field The utility model relates to the technical field of measuring instruments, in particular to a pressure guiding tube structure and a pressure measuring device. Background The pressure guide pipe is responsible for organically connecting each pressure measuring instrument with related equipment to be measured, is an important component in control and measurement, and is mainly used for guiding a pressure source. The fidelity and the accuracy of the pressure pipe conduction determine the stability of natural gas production, but the pressure medium in the pressure pipe can interfere the pressure source signal, and because the pressure medium is the high-pressure natural gas from the stratum, water, solid impurities, paraffin and the like in the pressure medium can be deposited in the pressure pipe, so that the medium flow resistance is increased, the measured value of the instrument is reduced, the measuring precision is influenced, the instrument can be further entered, and the measuring distortion of the instrument is caused. Therefore, how to reduce the interference of impurities and the like in the pressure-taking medium to the measurement accuracy becomes a problem to be solved. Disclosure of utility model The embodiment of the utility model provides a pressure guiding pipe structure and a pressure measuring device, which can avoid interference to measuring precision caused by impurities and the like in a pressure taking medium, and ensure that the pressure guiding pipe can accurately transmit a pressure source to a pressure measuring instrument. In a first aspect, an embodiment of the present utility model provides a pressure pipe structure, including: a barrel assembly; The guide pipe assembly penetrates through the cylinder assembly and is coaxially arranged with the cylinder assembly, and the guide pipe assembly is configured to enable pressure taking medium to flow; an adsorption component arranged on the outer wall of the conduit component and used for adsorbing impurities in the pressure taking medium, and The drying assembly is arranged on the outer wall of the conduit assembly and used for absorbing moisture in the pressure taking medium, the drying assembly and the absorbing assembly are arranged at intervals along the axial direction of the cylinder assembly, so that the cylinder assembly is divided into a first cavity, a second cavity and a third cavity which are sequentially arranged along the axial direction and communicated with each other, and the first cavity and the third cavity are respectively communicated with the conduit assembly. In one embodiment, the adsorption assembly comprises: An adsorption box arranged on the outer wall of the catheter assembly and provided with a plurality of first through holes penetrating through the adsorption box in the axial direction, and The adsorbent is arranged in the adsorption box. In one embodiment, the drying assembly comprises: A drying box arranged on the outer wall of the duct assembly, the drying box being provided with a plurality of second through holes penetrating the drying box in the axial direction, and And the drying agent is arranged in the drying box. In one embodiment, the barrel assembly includes a first end and a second end disposed opposite in the axial direction, the catheter assembly including: The inlet impulse pipe is arranged at the first end and communicated with the first cavity; an outlet impulse pipe arranged at the second end and communicated with the third cavity body, and One end of the single valve group is arranged on the inlet impulse pipe, and the other end of the single valve group is inserted into the outlet impulse pipe; the adsorption component and the drying component are arranged on the outer wall of the single valve group. In one embodiment, the single valve block comprises: one end of the shell is in threaded connection with the inlet impulse pipe, and the other end of the shell is inserted into the outlet impulse pipe; An elastic member disposed in the housing, and And the sealing ball is arranged in the shell and connected with the elastic piece, and the sealing ball can move along the axial direction under the action of the elastic force of the elastic piece so as to enable the sealing ball to be close to or far away from the inlet impulse tube. In one embodiment, the housing comprises: A first housing section into which one end of the inlet impulse pipe is inserted and screwed, and The second shell section is arranged at one end of the first shell section, which is close to the outlet impulse pipe, and the diameter of the second shell section is gradually reduced along the axial direction; One end of the elastic piece is connected with the inner wall of the second shell section, and the sealing ball is positioned in the first shell section. In one embodiment, the cartridge assembly comprises: a main cylinder, the first end bein