CN112098010A - Detection device for fire-fighting ventilation pipe - Google Patents
Detection device for fire-fighting ventilation pipe Download PDFInfo
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- CN112098010A CN112098010A CN202010967635.4A CN202010967635A CN112098010A CN 112098010 A CN112098010 A CN 112098010A CN 202010967635 A CN202010967635 A CN 202010967635A CN 112098010 A CN112098010 A CN 112098010A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
- G01M3/22—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
- G01M3/222—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for tubes
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- Fire-Detection Mechanisms (AREA)
Abstract
The invention discloses a detection device for a fire-fighting ventilation pipe, which comprises a base and a detection cavity arranged on the base, wherein the base is a rectangular base body, the detection cavity is a pipe cavity structure with an elliptic section, the rear end of the cavity is a closed structure, the front end of the cavity is rotatably provided with a cavity door through a hinge, two side walls of the cavity are fixedly welded with tracks, the tracks are provided with roller grooves, a material rack is placed on the tracks, a support plate is arranged on the material rack, and the support plate is provided with a plurality of blocks at equal intervals; through setting up the detection chamber to during the fire control ventilation pipe that will wait to detect is placed and is detected the chamber, and seal through the both ends of using seal structure to its pipeline, and to the cavity gas in detecting takes out and separates, and fills nitrogen gas, thereby treat the inside nitrogen gas concentration of detection pipeline through the inboard nitrogen gas detector of sealing mechanism and detect, thereby detect according to the change of its nitrogen gas concentration and wait to detect whether there is the leakage phenomenon in the pipeline.
Description
Technical Field
The invention relates to the technical field related to fire-fighting ventilation pipelines, in particular to a detection device for a fire-fighting ventilation pipeline.
Background
The ventilating duct is a metal or composite duct for ventilating and air conditioning engineering of industrial and civil buildings, and mainly has the functions of circulating air and reducing the concentration of harmful gases. And fire control air pipe need when the conflagration takes place, can be fast with indoor dense cigarette discharge, dilutes inside dense cigarette as far as possible to play the effect of protecting to inside personnel, with the increase personal safety nature.
And if fire control air pipe had the quality problem, just can seriously influence crowd's in the building personal safety, and fire control air pipe's leakproofness has just decided its safety protection effect when using in reality, but because fire control pipeline material's particularity, the pressure-bearing effect of its pipeline is not good to lead to the tradition to detect the mode of pipeline gas tightness through the air feed pressurization and not advisable.
Disclosure of Invention
The invention aims to provide a detection device for a fire-fighting ventilation pipe, which solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a detection device for a fire-fighting vent pipe comprises a base and a detection cavity arranged on the base, the base is a rectangular base body, the detection cavity is a tube cavity structure with an elliptical section, the rear end of the cavity is of a closed structure, the front end of the cavity is rotatably provided with a cavity door through a hinge, and two side walls of the cavity are fixedly welded with rails which are provided with roller grooves, a material rack is arranged on the track, a supporting plate is arranged on the material rack, a plurality of supporting plates are arranged on the supporting plate at equal intervals, and the plate bodies are all provided with a placing groove, and the single plate body is all provided with three notch structures, and the notches are respectively and fixedly provided with a first detection pipe body, a second detection pipe body and a third detection pipe body, and the two ends of the first detection pipe body, the second detection pipe body and the third detection pipe body are all sealed through a sealing mechanism.
Preferably, the material frame is a rectangular frame structure, a plurality of sets of roller mechanisms are symmetrically arranged on two sides of the lower surface of the frame, positions of the roller bodies on the roller structures correspond to positions of the roller grooves on the track, and the material frame is arranged on the track in a sliding mode through the roller structures.
Preferably, sealing mechanism comprises mounting panel, closing plate and setting element, and its setting element comprises last holding ring and next holding ring, it is semicircle ring structure to go up holding ring and next holding ring, and its opening tip between them all forms the connecting plate through bending, and goes up between holding ring and the next holding ring and connect fixedly through positioning bolt and set nut, the mounting panel is a circular dull and stereotyped, and the edge of its plate body has seted up first mounting hole.
Preferably, the outer side edges of the upper positioning ring and the lower positioning ring are integrally cast to form a second connecting plate, a second mounting hole is formed in the second connecting plate, the setting position of the second mounting hole corresponds to the setting position of the first mounting hole, and the second mounting hole and the first mounting hole are fixedly connected through an adjusting bolt and an adjusting nut.
Preferably, the sealing plate is fixedly glued on the mounting plate, the plate body of the sealing plate is made of elastic rubber, and the diameter of the plate body of the sealing plate is larger than that of the pipe body of the pipeline to be detected.
Preferably, a nitrogen detector, a signal processing unit and a signal sending unit are fixedly mounted on the plate body of the sealing plate, the signal output end of the nitrogen detector is in electrical signal connection with the signal processing unit, and the output end of the signal processing unit is in electrical signal connection with the signal sending unit.
Preferably, a heating device is arranged in the base, and the heating device is electrically connected with the power supply through a temperature control switch in the detection cavity.
Preferably, the inner part of the cavity of the detection cavity is provided with a first vacuum pump, a second vacuum pump and a third vacuum pump near the rear end, the air outlet end of the first vacuum pump is connected with the first pipeline, the air outlet end of the second vacuum pump is connected with the second pipeline, the air outlet end of the third vacuum pump is connected with the third pipeline, the tail end of the third pipeline is connected with the air inlet at the front end of the detection cavity, and an air inlet pipeline is arranged between the first pipeline and the second pipeline.
Preferably, the end parts of the first pipeline, the air inlet pipeline, the second pipeline and the third pipeline are respectively provided with an electromagnetic valve, and the air inlet pipeline and the second pipeline are respectively connected with the tank body of the nitrogen storage tank through air pipes.
Compared with the prior art, the invention has the beneficial effects that:
1. the detection cavity is arranged, the fire-fighting ventilation pipe to be detected is placed in the detection cavity, two ends of the pipeline are sealed by the sealing structures, air in the detection cavity is extracted, and nitrogen is filled, so that the nitrogen concentration in the pipeline to be detected is detected by the nitrogen detector on the inner side of the sealing mechanism, and whether the pipeline to be detected has a leakage phenomenon is detected according to the change of the nitrogen concentration;
2. by arranging the material frame and arranging the roller mechanism at the lower end of the material frame, a worker can conveniently send the fire-fighting ventilation pipe to be detected into the detection cavity for detection operation;
3. through setting up the sealing mechanism who comprises mounting panel, closing plate and setting element to upper positioning ring and the next holding ring through on the setting element improve sealing mechanism and wait to detect the stability of fixing between the fire control ventilation pipe, thereby avoid its junction to appear leaking and influence the accuracy of final detection data.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
FIG. 3 is a diagram showing the effect of placing a fire-fighting ventilation pipe on a material rack;
FIG. 4 is a schematic view of a material shelf structure;
fig. 5 is a schematic view of the sealing mechanism of the present invention.
In the figure: the device comprises a base 1, a detection cavity 2, a cavity door 3, a first pipeline 4, an air inlet pipeline 5, a second pipeline 6, a third pipeline 7, a rail 8, a roller groove 9, a material frame 10, a roller structure 11, a supporting plate 12, a placing groove 13, a first detection pipe body 14, a second detection pipe body 15, a third detection pipe body 16, a sealing mechanism 17, a mounting plate 18, a sealing plate 19, an upper positioning ring 20, a lower positioning ring 21, a connecting plate 22, a positioning bolt 23, a second connecting plate 24, an adjusting bolt 25, a nitrogen detector 26, a signal processing unit 27 and a signal sending unit 28.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a detection device for a fire-fighting ventilation pipe comprises a base 1 and a detection cavity 2 arranged on the base 1, wherein the base 1 is a rectangular base body, the detection cavity 2 is a pipe cavity structure with an elliptic section, the rear end of the cavity is a closed structure, the front end of the cavity is rotatably provided with a cavity door 3 through a hinge, two side walls of the cavity are fixedly welded with rails 8, the rails 8 are respectively provided with a roller groove 9, a material rack 10 is placed on the rails 8, a support plate 12 is arranged on the material rack 10, the support plate 12 is provided with a plurality of blocks at equal intervals, the plate body is provided with a placing groove 13, the single plate body is provided with three notch structures, a first detection pipe body 14, a second detection pipe body 15 and a third detection pipe body 16 are respectively and fixedly arranged in notches of the support plate 12, two ends of the first detection pipe body 14, the second detection pipe body 15 and the third detection pipe body 16 are respectively sealed through a sealing mechanism 17, through setting up detection chamber 2 to during the fire control ventilation pipe that will wait to detect is placed detection chamber 2, and seal structure 17 is used through the both ends to its pipeline and seal, and take out to the cavity gas in detecting chamber 2 and leave, and fill nitrogen gas, thereby treat the inside nitrogen gas concentration of detection pipeline through the inboard nitrogen gas detector of sealing mechanism 17 and detect, thereby detect according to the change of its nitrogen gas concentration and wait to detect whether there is the leakage phenomenon in the pipeline.
Furthermore, the material frame 10 is a rectangular frame structure, a plurality of groups of roller mechanisms 11 are symmetrically arranged on two sides of the lower surface of the frame, the positions of the wheels on the roller mechanisms 11 correspond to the positions of the roller grooves 9 on the rails 8, the material frame 10 is arranged on the rails 8 in a sliding manner through the roller mechanisms 11, the material frame 10 is arranged, and the roller mechanisms 11 are arranged at the lower end of the material frame 10, so that a worker can conveniently send the fire-fighting ventilation pipe to be detected into the detection cavity 2 for detection operation;
further, the sealing mechanism 17 is composed of a mounting plate 18, a sealing plate 19 and a positioning part, the positioning part is composed of an upper positioning ring 20 and a lower positioning ring 21, the upper positioning ring 20 and the lower positioning ring 21 are both semi-circular ring structures, the opening ends of the upper positioning ring 20 and the lower positioning ring 21 are bent to form a connecting plate 22, the upper positioning ring 20 and the lower positioning ring 21 are fixedly connected through a positioning bolt 23 and a positioning nut, the mounting plate 18 is a circular flat plate, and a first mounting hole is formed in the edge of a plate body of the mounting plate.
Further, the equal integrated into one piece in outside limit of superior holding ring 20 and lower holding ring 21 has second connecting plate 24, the second mounting hole has been seted up on the second connecting plate 24, and the position that sets up of second mounting hole is corresponding with the position that sets up of first mounting hole, and it is connected fixedly through adjusting bolt 25 and adjusting nut between the two, through setting up by mounting panel 18, sealing plate 19 and the sealing mechanism 17 that the setting element constitutes, thereby it improves sealing mechanism 17 and wait to detect the stability fixed between the fire control ventilation pipe to go through superior holding ring 20 and lower holding ring 21 on the setting element, thereby avoid its junction to appear leaking and influence the accuracy of final detected data.
Further, the sealing plate 19 is fixed and glued on the mounting plate 18, the plate body is made of elastic rubber, and the diameter of the plate body of the sealing plate 19 is larger than that of the pipe body of the pipeline to be detected.
Further, fixed mounting has nitrogen gas detector 26, signal processing unit 27 and signal transmission unit 28 on the plate body of closing plate 19, nitrogen gas detector 26's signal output part and signal processing unit 27 electric signal connection, and signal processing unit 27's output and signal transmission unit 28 electric signal connection, detect the leakproofness of waiting to detect the pipeline through using nitrogen gas, it is compared in the pressurized mode of traditional air feed, it can effectively avoid the pressurization and destroy the body and cause the leakage phenomenon and influence the accuracy that detects.
Further, the inside of base 1 is provided with heating device, and its heating device is connected with the power through the inside temperature detect switch in detection chamber 2 is electric, simulates high temperature flue gas environment through the heating to improve its reliability of testing result.
Furthermore, a first vacuum pump, a second vacuum pump and a third vacuum pump are arranged at the inner rear end of the cavity of the detection cavity 2, the air outlet end of the first vacuum pump is connected with the first pipeline 4, the air outlet end of the second vacuum pump is connected with the second pipeline 6, the air outlet end of the third vacuum pump is connected with the third pipeline 7, the tail end of the third pipeline 7 is connected with the air inlet at the front end of the detection cavity 2, and an air inlet pipeline 5 is arranged between the first pipeline 4 and the second pipeline 6.
Furthermore, the end parts of the first pipeline 4, the air inlet pipeline 5, the second pipeline 6 and the third pipeline 7 are all provided with electromagnetic valves, and the air inlet pipeline 5 and the second pipeline 6 are respectively connected with the tank body of the nitrogen storage tank through air pipes.
The working principle is as follows: in practical use, a worker firstly places a first detection tube body 14, a second detection tube body 15 and a third detection tube body 16 in a placing groove 13 on a support plate 12 on a material frame 10, then connects an upper positioning ring 20 and a lower positioning ring 21 on a sealing mechanism 17 with positioning nuts through positioning bolts 23, fixes the two detection tube bodies on the tube body of the first detection tube body 14, then connects and fixes a mounting plate 18 with the adjusting nuts through adjusting bolts 25, after the mounting is completed, the first detection tube body 14 is mounted with the sealing mechanism 17, then the other ends of the second detection tube body 15 and the third detection tube body 16 are mounted with the sealing mechanism 17, then pushes the material frame 10 into the cavity of a detection cavity 2, closes a cavity door 3, and then sucks air in the detection cavity 2 through a first vacuum pump, then the rethread admission line 5 with the nitrogen pump in the nitrogen gas storage tank go into detect chamber 2 in, preheat its inside through the heating structure who starts in the base 1 again to promote to detect the inside gas in chamber 2 and carry out the circulation flow through starting the third vacuum pump, then detect first detection body 14, second detection body 15, the inside nitrogen gas density of third detection body 16 through nitrogen gas detector 26, thereby detect whether there is the leakage phenomenon fire control ventilation pipe according to the change of nitrogen gas concentration.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a detection device for fire control ventilation pipe, includes base (1) and sets up detection chamber (2) on base (1), its characterized in that: base (1) is a rectangle pedestal, it is oval-shaped lumen structure that detection chamber (2) are a cross-section, and the rear end of its cavity is enclosed construction, and the front end of its cavity rotates through the hinge and installs chamber door (3), and equal fixed welding has track (8) on the both sides wall of its cavity, gyro wheel groove (9) have all been seted up on track (8), and have placed material frame (10) on track (8), and be provided with backup pad (12) on its material frame (10), backup pad (12) are equidistant to be provided with the polylith on it, and all seted up standing groove (13) on its plate body, and all seted up three notch structure on the monolithic plate body, and fixed first detection body (14), second detection body (15) and third detection body (16) of having set up respectively in its notch, and the both ends of first detection body (14), second detection body (15) and third detection body (16) all carry out through sealing mechanism (17) And (5) sealing treatment.
2. A detection device for a fire fighting ventilation duct according to claim 1, characterized in that: the material rack (10) is of a rectangular frame structure, a plurality of groups of roller mechanisms (11) are symmetrically arranged on two sides of the lower surface of the frame, the positions of the rollers on the roller structures (11) correspond to the positions of the roller grooves (9) on the rails (8), and the material rack (10) is arranged on the rails (8) in a sliding mode through the roller structures (11).
3. A detection device for a fire fighting ventilation duct according to claim 1, characterized in that: sealing mechanism (17) comprises mounting panel (18), closing plate (19) and setting element, and its setting element comprises upper holding ring (20) and lower holding ring (21), upper holding ring (20) and lower holding ring (21) are the semicircle ring structure, and its opening tip between them all forms connecting plate (22) through bending, and for connecting fixedly through positioning bolt (23) and set nut between upper holding ring (20) and lower holding ring (21), mounting panel (18) are a circular flat board, and the edge of its plate body has seted up first mounting hole.
4. A detection device for a fire fighting ventilation duct according to claim 3, characterized in that: the outer side edge of the upper positioning ring (20) and the outer side edge of the lower positioning ring (21) are respectively integrally cast and formed with a second connecting plate (24), the second connecting plate (24) is provided with a second mounting hole, the setting position of the second mounting hole corresponds to the setting position of the first mounting hole, and the second mounting hole and the first mounting hole are fixedly connected through an adjusting bolt (25) and an adjusting nut.
5. A detection device for a fire fighting ventilation duct according to claim 3, characterized in that: the sealing plate (19) is fixedly glued on the mounting plate (18), the plate body of the sealing plate is made of elastic rubber, and the diameter of the plate body of the sealing plate (19) is larger than that of the pipe body of the pipeline to be detected.
6. A detection device for a fire fighting ventilation duct according to claim 5, characterized in that: fixed mounting has nitrogen gas detector (26), signal processing unit (27) and signal transmission unit (28) on the plate body of closing plate (19), the signal output part and the signal processing unit (27) electric signal connection of nitrogen gas detector (26), and the output and the signal transmission unit (28) electric signal connection of signal processing unit (27).
7. A detection device for a fire fighting ventilation duct according to claim 1, characterized in that: the interior of the base (1) is provided with a heating device, and the heating device is electrically connected with a power supply through a temperature control switch in the detection cavity (2).
8. A detection device for a fire fighting ventilation duct according to claim 1, characterized in that: the rear end that leans on inside the cavity that detects chamber (2) is provided with first vacuum pump, second vacuum pump, third vacuum pump, and the end of giving vent to anger of its first vacuum pump is connected with first pipeline (4), and the end of giving vent to anger of second vacuum pump is connected with second pipeline (6), and the end of giving vent to anger of third vacuum pump is connected with third pipeline (7), and the end of third pipeline (7) is connected with the air inlet that detects chamber (2) front end, and is provided with admission line (5) between first pipeline (4) and second pipeline (6).
9. A detection device for a fire fighting ventilation duct according to claim 8, characterized in that: the end parts of the first pipeline (4), the air inlet pipeline (5), the second pipeline (6) and the third pipeline (7) are respectively provided with an electromagnetic valve, and the air inlet pipeline (5) and the second pipeline (6) are respectively connected with a tank body of the nitrogen storage tank through air pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010967635.4A CN112098010A (en) | 2020-09-15 | 2020-09-15 | Detection device for fire-fighting ventilation pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010967635.4A CN112098010A (en) | 2020-09-15 | 2020-09-15 | Detection device for fire-fighting ventilation pipe |
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| Publication Number | Publication Date |
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| CN112098010A true CN112098010A (en) | 2020-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010967635.4A Pending CN112098010A (en) | 2020-09-15 | 2020-09-15 | Detection device for fire-fighting ventilation pipe |
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| CN (1) | CN112098010A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114763878A (en) * | 2021-01-15 | 2022-07-19 | 中国科学院微电子研究所 | Leak detection member, gas line, manufacturing apparatus, and line leak detection method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100186484A1 (en) * | 2006-08-07 | 2010-07-29 | Car-Ber Investments Inc. | Apparatus and Method for Isolating or Testing a Pipe Segment with Axial Reinforcement |
| CN102803811A (en) * | 2010-03-01 | 2012-11-28 | 卡-博投资有限公司 | Pipe sealing tool with external and internal clamp |
| CN206905984U (en) * | 2017-06-09 | 2018-01-19 | 杭州联发管业科技有限公司 | Device for detecting airtightness of corrugated tube |
| CN207487901U (en) * | 2017-11-23 | 2018-06-12 | 青岛诚达工程检测有限公司 | A kind of more size pipe explosion-proofs and device for detecting sealability |
| CN109029854A (en) * | 2018-07-06 | 2018-12-18 | 芜湖奕辰模具科技有限公司 | A kind of laser cutting air-leakage test cabin |
| CN208333788U (en) * | 2018-05-05 | 2019-01-04 | 青岛世纪翔通管业有限公司 | Dynamic vibration testing stand |
| CN110455466A (en) * | 2019-08-16 | 2019-11-15 | 鲁宸轩 | A kind of automation pipe testing apparatus |
| CN210051504U (en) * | 2019-06-27 | 2020-02-11 | 广东西南石化装备有限公司 | Portable pressure pipeline detection device |
| CN210464841U (en) * | 2019-10-29 | 2020-05-05 | 广西永高机械设备检测有限公司 | Pipeline air tightness test device |
-
2020
- 2020-09-15 CN CN202010967635.4A patent/CN112098010A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100186484A1 (en) * | 2006-08-07 | 2010-07-29 | Car-Ber Investments Inc. | Apparatus and Method for Isolating or Testing a Pipe Segment with Axial Reinforcement |
| CN102803811A (en) * | 2010-03-01 | 2012-11-28 | 卡-博投资有限公司 | Pipe sealing tool with external and internal clamp |
| CN206905984U (en) * | 2017-06-09 | 2018-01-19 | 杭州联发管业科技有限公司 | Device for detecting airtightness of corrugated tube |
| CN207487901U (en) * | 2017-11-23 | 2018-06-12 | 青岛诚达工程检测有限公司 | A kind of more size pipe explosion-proofs and device for detecting sealability |
| CN208333788U (en) * | 2018-05-05 | 2019-01-04 | 青岛世纪翔通管业有限公司 | Dynamic vibration testing stand |
| CN109029854A (en) * | 2018-07-06 | 2018-12-18 | 芜湖奕辰模具科技有限公司 | A kind of laser cutting air-leakage test cabin |
| CN210051504U (en) * | 2019-06-27 | 2020-02-11 | 广东西南石化装备有限公司 | Portable pressure pipeline detection device |
| CN110455466A (en) * | 2019-08-16 | 2019-11-15 | 鲁宸轩 | A kind of automation pipe testing apparatus |
| CN210464841U (en) * | 2019-10-29 | 2020-05-05 | 广西永高机械设备检测有限公司 | Pipeline air tightness test device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114763878A (en) * | 2021-01-15 | 2022-07-19 | 中国科学院微电子研究所 | Leak detection member, gas line, manufacturing apparatus, and line leak detection method |
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Application publication date: 20201218 |
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