CN113551097B - In-situ cross-penetration tubular pretreatment device based on gas streaming - Google Patents

Abstract

The invention discloses an in-situ counter-penetrating permeation tube type pretreatment device based on gas bypass. The pretreatment device comprises a first sleeve, a second sleeve, a permeation tube and a sealing element, and the first sleeve is provided with The first through hole and the second through hole, the length direction of the first sleeve is parallel to the length direction of the second sleeve, one end of the first sleeve is connected to one end of the second sleeve, and at least part of the permeation pipe is arranged on the first sleeve. In the lumen of the sleeve, at least a part of the permeation tube is located between the first through hole and the second through hole along the radial direction of the first sleeve, and the seal is used to block the first part of the lumen of the first sleeve and the first through hole. A second portion of the lumen of the cannula and blocking the first portion of the lumen of the first cannula and the lumen of the second cannula. The in-situ opposite permeation tube type pretreatment device based on gas bypassing of the present invention can reduce the difficulty and risk of gas monitoring, and can also improve the accuracy of gas monitoring.

Description

In-situ counter-penetrating tubular pretreatment device based on gas bypass

technical field

The invention relates to the technical field of gas monitoring in the metallurgical and chemical industries, in particular to an in-situ counter-penetrating tubular pretreatment device based on gas bypass.

Background technique

In the related art, the gas monitoring in the metallurgical and chemical industries basically adopts the method of multi-stage filtration extraction and heat tracing to pretreat the gas in the pipeline. The process of this method is complicated, and it is equipped with a large number of pipelines, valves, flow meters, pressure gauges and other components, which are used for routine measurement, condensation water removal, purging, etc., and the structure is complex. This pretreatment method also requires high-temperature heat tracing, which is easy to be interfered by high-concentration water and easy to condense.

SUMMARY OF THE INVENTION

The present invention is made based on the inventors' findings and understanding of the following facts and problems:

Most of the gas measurement technologies used in the metallurgical and chemical industries are extraction pretreatment, that is, the gas in the gas pipeline is extracted, and then processed and measured. Other industries, such as the thermal power field, have in-situ cross-penetration measurement technology similar to this application. The in-situ cross-penetration measurement technology includes a laser emitting unit and a laser receiving unit. When working, one end emits laser, and the other end receives laser. The path of the laser is parallel to the radial direction of the gas pipeline. This measurement technology is mostly applied to large-scale gas pipelines. . In the metallurgical and chemical industries, the cross-sectional diameter of the gas pipeline is relatively small, the pressure in the gas pipeline is large, and the gas flow rate is fast. .

The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

To this end, an embodiment of the present invention proposes an in-situ counter-penetrating tubular pretreatment device based on gas bypass. The in-situ counter-penetrating tubular pretreatment device based on gas bypass can reduce the difficulty and risk of gas monitoring, and can also improve the accuracy of gas monitoring.

The in-situ anti-penetration tubular pretreatment device based on gas bypass flow according to an embodiment of the present invention includes: a first sleeve, one end of the first sleeve in the length direction is suitable for a pipe that can extend into a gas pipeline In the cavity, the first sleeve is provided with a first through hole and a second through hole, each of the first through hole and the second through hole can communicate with the first part of the first sleeve The lumen and the lumen of the gas pipeline, the first through hole and the second through hole are opposite along the radial direction of the first sleeve; the second sleeve, the length direction of the second sleeve One end of the upper sleeve is adapted to be able to extend into the lumen of the gas pipeline, the length direction of the first sleeve is parallel to the length direction of the second sleeve, and the one end of the first sleeve is connected to the The one end of the second sleeve is connected to communicate with the lumen of the first sleeve and the lumen of the second sleeve; a permeation tube, at least a part of the permeation tube is provided in the first sleeve within the lumen of the tube so that the lumen of the permeation tube communicates with the second portion of the lumen of the first cannula and the lumen of the second cannula, at least a portion of the permeation tube along the The radial direction of the first sleeve is located between the first through hole and the second through hole, so that the gas in the gas pipeline enters the lumen of the permeation pipe; and a sealing member, the sealing member is used for in blocking the first portion of the lumen of the first cannula and the second portion of the lumen of the first cannula and blocking the first portion of the lumen and the second portion of the lumen of the first cannula The lumen of the cannula.

According to the in-situ counter-permeation tube type pretreatment device based on gas bypass flow according to the embodiment of the present invention, when the gas in the lumen of the gas pipeline is monitored, the gas in the lumen of the gas pipeline can enter a stable state based on the principle of bypass flow. Passing through the permeation pipe, the pressure in the permeation pipe is lower than the pressure on the windward side of the permeation pipe in the gas pipe and higher than the pressure on the leeward side of the permeation pipe, so the gas in the gas pipe can continue to pass through the permeation pipe.

In addition, there is a small amount of gas in the permeation tube, which facilitates the gas measurement, thus reducing the difficulty and risk of gas monitoring. In addition, the in-situ penetrating tube type pretreatment device based on gas bypass in the embodiment of the present invention processes the gas in-situ in the gas pipeline, which can avoid distortion of the sample gas, thereby improving the measurement accuracy.

Therefore, the in-situ counter-penetration tubular pretreatment device based on gas bypass in the embodiment of the present invention can reduce the difficulty and risk of gas monitoring, and can also improve the accuracy of gas monitoring.

In some embodiments, the in-situ anti-penetration tubular pretreatment device based on gas bypass further comprises a first installation pipe and a second installation pipe, at least part of the first installation pipe and the second installation pipe At least a part of the pipe is arranged in the lumen of the first sleeve, the first installation pipe and the second installation pipe are oppositely arranged in the length direction of the first sleeve, and the permeation pipe in the length direction is opposite. One end is connected with the first installation pipe, the lumen of the first installation pipe communicates with the lumen of the first sleeve and the lumen of the permeation pipe, and the other end of the permeation pipe in the length direction is connected to the lumen of the permeation pipe. The second installation pipes are connected, and the lumen of the second installation pipe communicates with the lumen of the second sleeve and the lumen of the permeation pipe.

In some embodiments, the sealing member includes a first sealing ring and a second sealing ring, the outer peripheral surface of the first installation pipe is provided with a first annular groove, and the first sealing ring is provided on the first sealing ring. In the annular groove, the first sealing ring is in contact with the inner peripheral surface of the first sleeve, so as to block the first part of the lumen of the first sleeve and the first part of the first sleeve. Two-part lumen, the outer peripheral surface of the second installation tube is provided with a second annular groove, the second sealing ring is arranged in the second annular groove, and the second sealing ring is connected to the first annular groove. The inner peripheral surfaces of the sleeves are in contact so as to obstruct the first partial lumen of the first sleeve and the lumen of the second sleeve.

In some embodiments, the first cannula includes a first section, a second section, and a third section, the lumen of the first section forming the first partial lumen, and the lumen of the second section forming the lumen The second partial lumen, the lumen of the third section is the third partial lumen, and the first partial lumen is located between the second partial lumen and the second partial lumen along the axial direction of the first sleeve. Between the third partial lumen, the first partial lumen, the second partial lumen and the third partial lumen form the lumen of the first cannula, the second cannula including the fourth lumen The lumen of the fourth section is the fourth partial lumen, the lumen of the fifth section is the fifth partial lumen, and the lumen of the sixth section is the first lumen Six partial lumen, the fourth partial lumen is located between the fifth partial lumen and the sixth partial lumen along the axial direction of the second sleeve, the fourth partial lumen, the The fifth partial lumen and the sixth partial lumen form a lumen of the second cannula.

In some embodiments, the radial dimension of the first partial lumen is smaller than the radial dimension of the second partial lumen, the first mounting tube includes a first connecting segment and a second connecting segment, the first The radial dimension of the connecting segment is larger than the radial dimension of the second connecting segment, the first connecting segment is arranged in the second partial lumen, and the second connecting segment is arranged in the first partial lumen , the first annular groove is arranged on the outer peripheral surface of the first connecting section, and at least part of the second installation tube is arranged in the third partial lumen.

In some embodiments, the in-situ anti-penetration tubular pretreatment device based on gas bypass further includes a third sealing ring, and the third section of the first casing is located at the edge of the first casing. the one end, the fifth section of the second sleeve is located at the one end of the second sleeve, at least part of the third section is located in the fifth partial lumen, and the first At least part of the outer peripheral surface of the third segment is matched with the inner peripheral surface of the fifth segment, the inner peripheral surface of the fifth segment is provided with a third annular groove, and the third sealing ring is provided in the third annular recess In the groove, the third sealing ring is in contact with the outer peripheral surface of the third section, so as to block the lumen of the fifth part and the lumen of the gas pipeline.

In some embodiments, the in-situ anti-penetration tube type pretreatment device based on gas bypass further includes a first pressing tube, a second pressing tube and an elastic member, and the first pressing tube is provided at the inside the second part of the lumen, and part of the outer peripheral surface of the first pressing tube is connected to the inner peripheral surface of the second section, and the first pressing tube is adjacent to one end of the second sleeve. The end face is in contact with the end face of the end of the first connecting section away from the second sleeve, a part of the second pressing tube is arranged in the lumen of the fourth part, and the second pressing tube is The other part is set in the lumen of the sixth part, and part of the outer peripheral surface of the other part of the second pressing tube is connected with the inner peripheral surface of the sixth section, and the elastic member is along the The axial direction of the first sleeve is located between the second jacking pipe and the second installation pipe, and the end face of the second jacking pipe adjacent to one end of the first sleeve is in contact with the elastic member. The end face of one end away from the first sleeve is abutted against, and the end face of the end away from the first sleeve of the second installation tube is abutted against the end face of the elastic member adjacent to the end of the first sleeve.

In some embodiments, the in-situ anti-penetration tube type pretreatment device based on gas bypass further includes a fourth sealing ring, and a fourth annular recess is provided on the outer peripheral surface of the part of the second pressing tube The fourth sealing ring is arranged in the fourth annular groove, and the fourth sealing ring is in contact with the inner peripheral surface of the fourth segment.

In some embodiments, the in-situ anti-penetration tube type pretreatment device based on gas bypass further comprises a purge tube, the outer peripheral surface of the first pressing tube and the inner peripheral surface of the second section are An annular cavity is formed between them, the wall of the first pressing tube is provided with a third through hole for connecting the lumen of the first pressing tube and the annular cavity, the purging tube is connected to the second The outer peripheral surfaces of the segments are connected, and the pipe wall of the second segment is provided with a fourth through hole for communicating the annular cavity and the lumen of the purge pipe.

In some embodiments, the in-situ anti-penetration tubular pretreatment device based on gas bypass further includes a first guard and a second guard, the first guard and the second guard are along the The radial direction of the first sleeve is opposite, the first through hole and the second through hole are both long holes, and the length direction of the first through hole and the length direction of the second through hole are parallel to each other. In the length direction of the first sleeve, one end of the first guard is located on one side of the width direction of the first through hole and is connected to the first sleeve, and the other end of the first guard is connected to the first sleeve. One end is located on the other side in the width direction of the first through hole and is connected to the first sleeve, and the side of the first guard adjacent to the second guard is in contact with the outer peripheral surface of the permeation pipe contact, one end of the second protective piece is located on one side of the width direction of the second through hole and is connected with the first sleeve, and the other end of the second protective piece is located in the second through hole The other side in the width direction of the second guard is connected to the first sleeve, and the side of the second guard adjacent to the first guard is in contact with the outer peripheral surface of the permeation tube.

Description of drawings

FIG. 1 is a schematic three-dimensional structure diagram of a pretreatment device according to an embodiment of the present invention.

FIG. 2 is a schematic structural diagram of a front view of a preprocessing apparatus according to an embodiment of the present invention.

FIG. 3 is a schematic top-view structural diagram of a preprocessing device according to an embodiment of the present invention.

FIG. 4 is a schematic cross-sectional view of the first sleeve.

FIG. 5 is a schematic cross-sectional view of the second sleeve.

FIG. 6 is a cross-sectional view taken along line A-A of FIG. 2 .

FIG. 7 is a cross-sectional view taken along line B-B of FIG. 3 .

FIG. 8 is a partial enlarged view at A in FIG. 6 .

FIG. 9 is a partial enlarged view at B in FIG. 6 .

FIG. 10 is a partial enlarged view at A in FIG. 7 .

FIG. 11 is a partial enlarged view at B in FIG. 7 .

Reference number:

gas pipeline 1;

first sleeve 10; first section 101; second section 102; fourth through hole 1021; third section 103; first through hole 104; second through hole 105; first connector 11; third connector 12 ; Purge pipe 13; First guard 14; Second guard 15;

The second sleeve 20; the fourth section 201; the fifth section 202; the sixth section 203; the third sealing ring 204; the second connecting piece 21; the fourth connecting piece 22;

permeation tube 30;

the fifth connector 40; the sixth connector 50; the first valve 60; the second valve 70;

The first installation pipe 80; the first connecting section 81; the first sealing ring 801; the second connecting section 82;

The second installation pipe 90; the second sealing ring 901;

The first pressing tube 100; the third through hole 1001;

annular cavity 110;

The second pressing tube 120; the fourth sealing ring 1201;

elastic member 130;

The first anti-loosening screw sleeve 140;

The second anti-loosening screw sleeve 150 .

Detailed ways

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.

The following describes an in-situ anti-penetration pipe 30 type pretreatment device based on gas bypass flow according to an embodiment of the present invention with reference to the accompanying drawings.

As shown in FIGS. 1-11 , the in-situ anti-penetration permeation tube 30 type pretreatment device based on gas bypass flow according to an embodiment of the present invention includes: a first casing 10 , a second casing 20 , a permeation tube 30 and Seals.

One end (the right end of the first sleeve 10 in FIG. 2 ) in the length direction (the left-right direction in FIG. 2 ) of the first sleeve 10 is adapted to be able to extend into the lumen of the gas pipeline 1 . The first cannula 10 is provided with a first through hole 104 and a second through hole 105, each of the first through hole 104 and the second through hole 105 can communicate with the first part of the lumen of the first cannula 10 and the gas pipeline 1, the first through hole 104 and the second through hole 105 are opposite to each other along the radial direction of the first sleeve 10 (the front-rear direction in FIG. 2).

One end in the length direction of the second sleeve 20 (the left end of the second sleeve 20 in FIG. 2 ) is adapted to be able to extend into the lumen of the gas pipeline 1 , and the length direction of the first sleeve 10 is parallel to the second sleeve In the length direction of the tube 20, one end of the first sleeve 10 is connected to one end of the second sleeve 20 to communicate with the lumen of the first sleeve 10 and the lumen of the second sleeve 20, that is, the lumen of the first sleeve 10. The lumen communicates with the lumen of the second cannula 20 .

At least a part of the permeation tube 30 is arranged in the lumen of the first casing 10, so that the lumen of the permeation tube 30 is communicated with the second part of the lumen of the first casing 10 and the lumen of the second casing 20, At least part of the tube 30 is located between the first through hole 104 and the second through hole 105 along the radial direction of the first sleeve 10 , so that the gas in the gas pipe 1 enters the lumen of the permeation tube 30 .

It can be understood that the high-pressure gas in the gas pipeline 1 flows at a high speed and can enter the lumen of the permeation tube 30 based on the principle of gas bypass.

Specifically, taking the high-speed flow of the gas in the gas pipeline 1 from front to back as an example, the gas enters the lumen of the first casing 10 from the first through hole 104 , and most of the gas bypasses the permeation tube 30 and flows out from the second through hole 105 , so that the gas pressure on the front side of the permeation tube 30 is greater than the gas pressure on the rear side of the permeation tube 30. Due to the existence of the pressure difference, the gas on the front side of the permeation tube 30 can enter the lumen of the permeation tube 30, and the inside of the permeation tube 30 The pressure in the gas pipeline 1 is lower than the pressure on the front side of the permeation tube 30 in the gas pipeline 1 and higher than the pressure on the rear side of the permeation tube 30 , so the gas in the gas pipeline 1 can continue to pass through the permeation tube 30 .

The seal is used to block the first part of the lumen of the first cannula 10 and the second part of the lumen of the first cannula 10 and to block the first part of the lumen of the first cannula 10 and the lumen of the second cannula 20 . Therefore, the in-situ anti-penetration tube 30 type pretreatment device based on gas bypass flow in the embodiment of the present invention can prevent the gas in the gas pipeline 1 from entering the second part of the lumen of the first casing 10 and the tube of the second casing 20 The cavity ensures that the sample gas in the permeation tube 30 is measured, which is conducive to high measurement accuracy.

According to the in-situ counter-penetrating tube 30-type pretreatment device based on gas bypass flow according to the embodiment of the present invention, when the gas in the lumen of the gas pipeline 1 is monitored, the gas in the lumen of the gas pipeline 1 is based on the principle of bypass flow It can enter and pass through the permeation tube 30 stably. The pressure in the permeation tube 30 is lower than the pressure in the gas pipeline 1, and there is a small amount of gas in the permeation tube 30, which is conducive to the measurement of gas, so it can reduce the difficulty and risk of gas monitoring .

In addition, the in-situ penetrating tube 30-type pretreatment device based on gas bypass in the embodiment of the present invention processes the gas in-situ in the gas pipeline 1, which can avoid distortion of the sample gas, thereby improving the measurement accuracy.

Therefore, the in-situ anti-penetration tube 30-type pretreatment device based on gas bypass in the embodiment of the present invention can reduce the difficulty and risk of gas monitoring, and can also improve the accuracy of gas monitoring.

As shown in FIGS. 1-3 and 6-11 , the in-situ anti-penetration tube 30 type pretreatment device based on gas bypass flow according to the embodiment of the present invention further includes a first connector 11 , a second connector 21 , The third connector 12 , the fourth connector 22 , the first valve 60 and the second valve 70 .

The first connecting piece 11 and the third connecting piece 12 are arranged on the first sleeve 10 , and the second connecting piece 21 and the fourth connecting piece 22 are arranged on the second sleeve 20 .

The first valve 60 is connected with the third connecting piece 12 , and the third connecting piece 12 is provided at the left end of the first sleeve 10 , so that the first valve 60 communicates with the left end of the first sleeve 10 . The second valve 70 is connected with the fourth connecting piece 22 , and the fourth connecting piece 22 is provided at the right end of the second sleeve 20 , so that the second valve 70 communicates with the right end of the second sleeve 20 .

The first connecting piece 11 is arranged on the right side of the third connecting piece 12 , and the first connecting piece 11 is used for connecting with the gas pipeline 1 . The second connecting piece 21 is provided on the left side of the fourth connecting piece 22 , and the second connecting piece 21 is used for connecting with the gas pipeline 1 .

As shown in FIGS. 2 and 3 , a fifth connector 40 and a sixth connector 50 can be installed on the gas pipeline 1 , the fifth connector 40 is connected to the first connector 11 , and the sixth connector 50 is connected to the second connector 21 connected.

Specifically, the first connecting piece 11 , the second connecting piece 21 , the third connecting piece 12 , the fourth connecting piece 22 , the fifth connecting piece 40 and the sixth connecting piece 50 are all connecting flanges. And between the first connector 11 and the fifth connector 40 , between the second connector 21 and the sixth connector 50 , between the third connector 12 and the first valve 60 , and between the fourth connector 22 and the first valve 60 , A sealing gasket is provided between the two valves 70 .

Therefore, the in-situ anti-penetration tube 30 type pretreatment device based on gas bypass flow according to the embodiment of the present invention can be installed on the gas pipeline 1 . When the equipment for measuring gas is repaired or cleaned, the first valve 60 and the second valve 70 can also be used to seal the lumen of the first casing 10 and the second casing 20, thereby avoiding gas leakage.

In some embodiments, as shown in FIG. 2 to FIG. 11 , the in-situ anti-penetration pipe 30 type pretreatment device based on gas bypass according to the embodiment of the present invention further includes a first installation pipe 80 and a second installation pipe 90 .

At least part of the first installation pipe 80 and at least part of the second installation pipe 90 are both arranged in the lumen of the first sleeve 10 , and the first installation pipe 80 and the second installation pipe 90 are in the length direction of the first sleeve 10 relative settings. Specifically, the first installation pipe 80 is provided at the left end of the first sleeve 10 , and the second installation pipe 90 is provided at the right end of the first sleeve 10 .

One end of the permeation tube 30 in the length direction (the left end of the permeation tube 30 in FIG. 2 ) is connected to the first installation tube 80 , so that the lumen of the first installation tube 80 communicates with the lumen of the first sleeve 10 and the permeation tube 30 the lumen.

Specifically, the left end of the permeation tube 30 extends into the lumen of the first installation tube 80 , and the outer peripheral surface of the permeation tube 30 is bonded to the inner peripheral surface of the first installation tube 80 .

The other end of the permeation tube 30 in the length direction (the right end of the permeation tube 30 in FIG. 2 ) is connected to the second installation tube 90, so that the lumen of the second installation tube 90 communicates with the lumen of the second sleeve 20 and the permeation tube 30 lumen.

Specifically, the right end of the permeation tube 30 extends into the lumen of the second installation tube 90 , and the outer peripheral surface of the permeation tube 30 is bonded to the inner peripheral surface of the second installation tube 90 .

Therefore, the permeation tube 30 can be stably installed in the first casing 10 .

As shown in FIGS. 8-11 , the sealing member includes a first sealing ring 801 and a second sealing ring 901 .

The outer peripheral surface of the first installation pipe 80 is provided with a first annular groove, the first sealing ring 801 is arranged in the first annular groove, and the first sealing ring 801 is in contact with the inner peripheral surface of the first sleeve 10 . Therefore, the first sealing ring 801 can block the first part of the lumen of the first sleeve 10 and the second part of the lumen of the first sleeve 10 .

The outer peripheral surface of the second installation pipe 90 is provided with a second annular groove, the second sealing ring 901 is arranged in the second annular groove, and the second sealing ring 901 is in contact with the inner peripheral surface of the first sleeve 10 . Therefore, the second sealing ring 901 can block the first part of the lumen of the first cannula 10 and the lumen of the second cannula 20 .

Therefore, the in-situ anti-penetration tube 30 type pretreatment device based on gas bypass flow in the embodiment of the present invention can prevent the gas in the gas pipeline 1 from entering the second part of the lumen of the first casing 10 and the tube of the second casing 20 The cavity ensures that the sample gas in the permeation tube 30 is measured, which is conducive to high measurement accuracy.

As shown in FIGS. 4 , 6 , 8 and 10 , the first sleeve 10 includes a first section 101 , a second section 102 and a third section 103 . The lumen of the first section 101 forms the first partial lumen, the lumen of the second section 102 forms the second partial lumen, and the lumen of the third section 103 forms the third partial lumen. The first partial lumen is located between the second partial lumen and the third partial lumen along the axial direction of the first sleeve 10 , and the first partial lumen, the second partial lumen and the third partial lumen form the first sleeve 10 the lumen.

As shown in FIGS. 5 , 7 , 9 and 11 , the second sleeve 20 includes a fourth section 201 , a fifth section 202 and a sixth section 203 . The lumen of the fourth section 201 is a fourth partial lumen, The lumen of the fifth segment 202 is the fifth partial lumen, and the lumen of the sixth segment 203 is the sixth partial lumen. The fourth partial lumen is located between the fifth partial lumen and the sixth partial lumen along the axial direction of the second sleeve 20, and the fourth partial lumen, the fifth partial lumen and the sixth partial lumen form a second sleeve The lumen of the tube 20.

As shown in FIGS. 4-11 , the radial dimension of the first partial lumen is smaller than the radial dimension of the second partial lumen. The first installation pipe 80 includes a first connection segment 81 and a second connection segment 82 , and the radial dimension of the first connection segment 81 is larger than the radial dimension of the second connection segment 82 . The first connecting section 81 is arranged in the second partial lumen, the second connecting section 82 is arranged in the first partial lumen, the first annular groove is arranged on the outer peripheral surface of the first connecting section 81, and at least The part is arranged in the lumen of the third part.

In some embodiments, as shown in FIG. 5 , FIG. 7 , FIG. 9 and FIG. 11 , the in-situ anti-penetration tube 30 type pretreatment device based on gas bypass flow according to the embodiment of the present invention further includes a third sealing ring 204 . The third segment 103 of the first sleeve 10 is located at one end (right end) of the first sleeve 10 , and the fifth segment 202 of the second sleeve 20 is located at one end (left end) of the second sleeve 20 . At least part of the third segment 103 is located in the fifth partial lumen, and at least part of the outer peripheral surface of the third segment 103 is matched with the inner peripheral surface of the fifth segment 202 . Specifically, the outer peripheral surface of the third segment 103 is in clearance fit with the inner peripheral surface of the fifth segment 202 .

The inner peripheral surface of the fifth segment 202 is provided with a third annular groove, the third sealing ring 204 is arranged in the third annular groove, and the third sealing ring 204 is in contact with the outer peripheral surface of the third segment 103 so as to block the fifth Part of the lumen and the lumen of the gas pipeline 1 can prevent the gas in the lumen of the gas pipeline 1 from entering the lumen of the second sleeve 20, which is beneficial to improve the accuracy of gas measurement.

In some embodiments, as shown in FIGS. 4-11 , the in-situ anti-penetration tube 30-type pretreatment device based on gas bypass flow according to the embodiment of the present invention further includes a first jacking pipe 100 and a second jacking pipe 120 , the elastic member 130 , the first anti-loosening screw sleeve 140 , the second anti-loosening screw sleeve 150 and the fourth sealing ring 1201 .

The first pressing tube 100 is arranged in the second part of the lumen, and part of the outer peripheral surface of the first pressing tube 100 is connected to the inner peripheral surface of the second section 102 , and the first pressing tube 100 is adjacent to the second sleeve 20 The end face of one end of the first connecting segment 81 is in contact with the end face of the end of the first connecting segment 81 away from the second sleeve 20 .

A part of the second pressing tube 120 is arranged in the fourth part of the lumen, another part of the second pressing tube 120 is arranged in the sixth part of the lumen, and a part of the outer peripheral surface of the other part of the second pressing tube 120 and The inner peripheral surfaces of the sixth segment 203 are connected. The elastic member 130 is located between the second pressing tube 120 and the second installation tube 90 along the axial direction of the first sleeve 10 . The end face of the end away from the first sleeve 10 abuts against the end face of the second installation tube 90 away from the first sleeve 10 and the end face of the elastic member 130 adjacent to the first sleeve 10 .

The elastic member 130 has a circular hole, and the circular hole of the elastic member 130 communicates with the lumen of the second installation tube 90 and the lumen of the second pressing tube 120 . The elastic member 130 may be a rubber sealing ring, or may be other elastic sealing members.

Specifically, a part of the outer peripheral surface of the first pressing pipe 100 is provided with threads, and a part of the inner peripheral surface of the second section 102 is also provided with threads. face thread connection. The outer peripheral surface of the first anti-loosening screw sleeve 140 is provided with threads, the first anti-loosening screw sleeve 140 is arranged at the left end of the first tightening tube 100 , and the outer peripheral surface of the first anti-loosening screw sleeve 140 is connected to the part of the second section 102 The inner peripheral surface is screwed, so the loosening of the first pressing pipe 100 can be avoided.

A part of the outer peripheral surface of the other part of the second pressing pipe 120 is provided with threads, a part of the inner peripheral surface of the sixth segment 203 is provided with threads, and a part of the outer peripheral surface of the other part of the second pressing pipe 120 and the part of the sixth segment 203 are provided with threads. Internal threaded connection. The outer peripheral surface of the second anti-loosening screw sleeve 150 is provided with threads, the second anti-loosening screw sleeve 150 is arranged on the right end of the second tightening tube 120 , and the outer peripheral surface of the second anti-loosening screw sleeve 150 is connected to the part of the sixth section 203 The inner peripheral surface is threaded, so that the loosening of the second pressing pipe 120 can be avoided.

Therefore, the first pressing tube 100 and the second pressing tube 120 can position the permeation tube 30 in the left-right direction, which is beneficial to improve the stability of gas measurement.

As shown in FIG. 2 , FIG. 4 , FIG. 6 and FIG. 7 , the in-situ anti-penetration tube 30 type pretreatment device based on gas bypass according to the embodiment of the present invention further includes a first guard 14 and a second guard 15 . The first guard 14 and the second guard 15 are opposite along the radial direction of the first sleeve 10 , the first through hole 104 and the second through hole 105 are both long holes, and the length direction of the first through hole 104 is the same as the second through hole. The length directions of the holes 105 are all parallel to the length direction of the first sleeve 10 .

One end of the first guard 14 is located on one side (upper side) in the width direction of the first through hole 104 and is connected to the first sleeve 10 , and the other end of the first guard 14 is located in the width direction of the first through hole 104 . On the other side (lower side) and connected to the first sleeve 10 , the side (rear side) of the first guard 14 adjacent to the second guard 15 is in contact with the outer peripheral surface of the permeation tube 30 .

One end of the second guard 15 is located on one side (upper side) in the width direction of the second through hole 105 and is connected to the first sleeve 10 , and the other end of the second guard 15 is located in the width direction of the second through hole 105 On the other side (lower side) and connected to the first sleeve 10 , the side (front side) of the second guard 15 adjacent to the first guard 14 is in contact with the outer peripheral surface of the permeation tube 30 .

Therefore, the first guard 14 and the second guard 15 can position the permeation tube 30 in the front-rear direction, which is beneficial to improve the stability of gas measurement.

As shown in FIG. 9 and FIG. 11 , a fourth annular groove is formed on the outer peripheral surface of a part of the second pressing tube 120 , the fourth sealing ring 1201 is arranged in the fourth annular groove, and the fourth sealing ring 1201 is connected to the fourth annular groove. The inner peripheral surfaces of the four segments 201 are in contact with each other. Therefore, the fourth sealing ring 1201 can play a sealing role together with the third sealing ring 204, which can prevent the gas in the lumen of the gas pipeline 1 from entering the lumen of the second sleeve 20, which is beneficial to improve the accuracy of gas measurement .

In some embodiments, as shown in FIG. 4 , FIG. 6 , FIG. 7 , FIG. 8 , and FIG. 10 , the in-situ anti-penetrating permeation tube type 30 pretreatment device based on gas bypass according to the embodiment of the present invention further includes a purge tube 13.

An annular cavity 110 is formed between the outer peripheral surface of the first pressing tube 100 and the inner peripheral surface of the second section 102 , and the tube wall of the first pressing tube 100 is provided with a lumen and an annular cavity for communicating with the first pressing tube 100 The third through hole 1001 of 110, the purging pipe 13 is connected to the outer peripheral surface of the second section 102, and the tube wall of the second section 102 is provided with a fourth through hole 1021 for connecting the annular cavity 110 and the lumen of the purging pipe 13 .

Therefore, the in-situ anti-permeation tube 30 type pretreatment device based on gas bypass in the embodiment of the present invention can use the purge tube 13 to backflush gas to purge the permeation tube 30 .

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " Rear, Left, Right, Vertical, Horizontal, Top, Bottom, Inner, Outer, Clockwise, Counterclockwise, Axial, The orientations or positional relationships indicated by "radial direction", "circumferential direction", etc. are based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the indicated devices or elements. It must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.

In the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two components or the interaction relationship between the two components, unless otherwise expressly qualified. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may be in direct contact between the first and second features, or the first and second features indirectly through an intermediary touch. Also, the first feature being "above", "over" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

In this disclosure, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples" and the like mean a specific feature, structure, material, or description described in connection with the embodiment or example. Features are included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples, without conflicting each other.

Although the embodiments of the present invention have been shown and described above, it should be understood that the above-mentioned embodiments are exemplary and should not be construed as limiting the present invention. Embodiments are subject to variations, modifications, substitutions and variations.

Claims (10)

1. An in-situ cross-permeation tubular pretreatment device based on gas bypass flow, comprising:

the first sleeve is provided with a first through hole and a second through hole, each of the first through hole and the second through hole can be communicated with a first part of the tube cavity of the first sleeve and the tube cavity of the gas pipeline, and the first through hole and the second through hole are opposite to each other along the radial direction of the first sleeve;

a second sleeve, one end of the second sleeve in the length direction is suitable for extending into the lumen of the gas pipeline, the length direction of the first sleeve is parallel to the length direction of the second sleeve, and the one end of the first sleeve is connected with the one end of the second sleeve so as to communicate the lumen of the first sleeve with the lumen of the second sleeve;

a penetration pipe, at least a part of which is arranged in the lumen of the first sleeve, so that the lumen of the penetration pipe is communicated with the lumen of the second part of the first sleeve and the lumen of the second sleeve, and at least a part of which is arranged between the first through hole and the second through hole along the radial direction of the first sleeve, so that the gas in the gas pipeline enters the lumen of the penetration pipe; and

a seal for obstructing the first partial lumen of the first cannula and the second partial lumen of the first cannula and obstructing the first partial lumen of the first cannula and the lumen of the second cannula.

2. The in-situ cross-permeation tube type pretreatment device based on gas bypass flow, according to claim 1, further comprising a first installation tube and a second installation tube, wherein at least part of the first installation tube and at least part of the second installation tube are both arranged in the tube cavity of the first sleeve, the first installation tube and the second installation tube are arranged oppositely in the length direction of the first sleeve,

one end of the permeation tube in the length direction is connected with the first installation tube, the tube cavity of the first installation tube is communicated with the tube cavity of the first sleeve and the tube cavity of the permeation tube,

the other end of the permeation tube in the length direction is connected with the second installation tube, and the tube cavity of the second installation tube is communicated with the tube cavity of the second sleeve and the tube cavity of the permeation tube.

3. The in-situ cross-over permeate tube pretreatment device based on gas bypass flow according to claim 2, wherein the sealing element comprises a first sealing ring and a second sealing ring,

the outer peripheral surface of the first mounting pipe is provided with a first annular groove, the first sealing ring is arranged in the first annular groove and is in contact with the inner peripheral surface of the first sleeve so as to block the first partial pipe cavity of the first sleeve and the second partial pipe cavity of the first sleeve,

the outer peripheral surface of the second mounting pipe is provided with a second annular groove, the second sealing ring is arranged in the second annular groove, and the second sealing ring is in contact with the inner peripheral surface of the first sleeve so as to block the first partial pipe cavity of the first sleeve and the pipe cavity of the second sleeve.

4. The in-situ counter-penetration tubular pretreatment device based on gas bypass according to claim 3, wherein the first sleeve comprises a first section, a second section and a third section, the lumen of the first section forms the first partial lumen, the lumen of the second section forms the second partial lumen, the lumen of the third section is a third partial lumen, the first partial lumen is located between the second partial lumen and the third partial lumen along the axial direction of the first sleeve, and the first partial lumen, the second partial lumen and the third partial lumen form the lumen of the first sleeve,

the second sleeve comprises a fourth section, a fifth section and a sixth section, the lumen of the fourth section is a fourth partial lumen, the lumen of the fifth section is a fifth partial lumen, the lumen of the sixth section is a sixth partial lumen, the fourth partial lumen is located between the fifth partial lumen and the sixth partial lumen along the axial direction of the second sleeve, and the fourth partial lumen, the fifth partial lumen and the sixth partial lumen form the lumen of the second sleeve.

5. The in-situ cross-permeation tube type pretreatment device based on gas bypassing of claim 4, wherein a radial dimension of the first partial tube cavity is smaller than a radial dimension of the second partial tube cavity, the first installation tube comprises a first connection section and a second connection section, the radial dimension of the first connection section is larger than the radial dimension of the second connection section, the first connection section is arranged in the second partial tube cavity, the second connection section is arranged in the first partial tube cavity, the first annular groove is arranged on an outer circumferential surface of the first connection section, and at least a part of the second installation tube is arranged in the third partial tube cavity.

6. The in-situ cross-permeation tube type pretreatment device based on gas bypassing of claim 4, further comprising a third sealing ring, wherein the third section of the first sleeve is located at the one end of the first sleeve, the fifth section of the second sleeve is located at the one end of the second sleeve, at least a part of the third section is located in the fifth partial tube cavity, at least a part of the outer circumferential surface of the third section is matched with the inner circumferential surface of the fifth section, the inner circumferential surface of the fifth section is provided with a third annular groove, the third sealing ring is arranged in the third annular groove, and the third sealing ring is in contact with the outer circumferential surface of the third section so as to block the fifth partial tube cavity from the tube cavity of the gas pipeline.

7. The in-situ cross-permeation tube type pretreatment device based on gas bypassing of claim 5, further comprising a first tightening tube, a second tightening tube and an elastic member, wherein the first tightening tube is disposed in the second partial tube cavity, and a part of the outer circumferential surface of the first tightening tube is connected with the inner circumferential surface of the second section, and the end surface of the first tightening tube adjacent to one end of the second sleeve is in contact with the end surface of the first connecting section far from one end of the second sleeve,

one part of the second jacking pipe is arranged in the fourth pipe cavity, the other part of the second jacking pipe is arranged in the sixth pipe cavity, part of the outer peripheral surface of the other part of the second jacking pipe is connected with the inner peripheral surface of the sixth section, the elastic piece is positioned between the second jacking pipe and the second mounting pipe along the axial direction of the first sleeve, the end surface of the second jacking pipe, which is close to one end of the first sleeve, is abutted against the end surface of the elastic piece, which is far away from one end of the first sleeve, and the end surface of the second mounting pipe, which is far away from one end of the first sleeve, is abutted against the end surface of the elastic piece, which is close to one end of the first sleeve.

8. The in-situ cross-permeation tube type pretreatment device based on gas bypass flow, according to claim 7, further comprising a fourth sealing ring, wherein a fourth annular groove is formed in an outer circumferential surface of the portion of the second jacking tube, the fourth sealing ring is arranged in the fourth annular groove, and the fourth sealing ring is in contact with an inner circumferential surface of the fourth section.

9. The in-situ cross-permeation tubular pretreatment device based on gas circumfluence, according to claim 7, further comprising a purging tube, wherein an annular cavity is formed between the outer circumferential surface of the first tightening tube and the inner circumferential surface of the second section, a third through hole for communicating the tubular cavity of the first tightening tube and the annular cavity is formed in the tubular wall of the first tightening tube, the purging tube is connected with the outer circumferential surface of the second section, and a fourth through hole for communicating the annular cavity and the tubular cavity of the purging tube is formed in the tubular wall of the second section.

10. The in-situ cross-permeation tubular pretreatment device based on gas bypass flow according to any one of claims 1 to 9, further comprising a first shielding member and a second shielding member, wherein the first shielding member and the second shielding member are opposite to each other in a radial direction of the first sleeve, the first through hole and the second through hole are both long holes, a length direction of the first through hole and a length direction of the second through hole are both parallel to a length direction of the first sleeve,

one end of the first prevention piece is located on one side in the width direction of the first through hole and connected to the first sleeve, the other end of the first prevention piece is located on the other side in the width direction of the first through hole and connected to the first sleeve, a side surface of the first prevention piece adjacent to the second prevention piece is in contact with the outer circumferential surface of the permeation tube,

one end of the second shielding member is located on one side in the width direction of the second through hole and connected to the first sleeve, the other end of the second shielding member is located on the other side in the width direction of the second through hole and connected to the first sleeve, and a side surface of the second shielding member adjacent to the first shielding member is in contact with the outer circumferential surface of the permeation tube.

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