CN210739997U - Auxiliary device for natural gas pipe section leakage test - Google Patents
Auxiliary device for natural gas pipe section leakage test Download PDFInfo
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- CN210739997U CN210739997U CN201921564712.0U CN201921564712U CN210739997U CN 210739997 U CN210739997 U CN 210739997U CN 201921564712 U CN201921564712 U CN 201921564712U CN 210739997 U CN210739997 U CN 210739997U
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Abstract
The embodiment of the utility model provides an auxiliary device for natural gas pipeline section leak test, include: elastic sealing band, fixer, detecting valve; the detection valve is arranged in the middle of the elastic sealing belt and is used for inserting a probe of a detector; the fixer comprises a first fixing module arranged at the first end of the sealing strip and a second fixing module arranged at the second end of the sealing strip; work as first fixed module with when the connection can be dismantled to the fixed module of second, elastic sealing strip elastic extension, laminating in the natural gas pipeline section of awaiting measuring, the utility model discloses utilize the check valve, when needs are tested, can insert the check valve with the detector probe, among the prior art, directly use the probe to puncture the sticky tape and compare, can keep auxiliary device's whole integrality, when accomplishing test work, can this auxiliary device of reuse, guarantee that the pipeline section interface reveals the test and normally goes on.
Description
Technical Field
The embodiment of the utility model provides a relate to sealed test tool technical field, concretely relates to an auxiliary device for natural gas pipeline section leak test.
Background
In the process of natural gas transmission and distribution, a large number of various stations exist, such as a C NG station, an LNG gas station, a gate station, a pressure regulating station, a sub-transmission station, a segment valve chamber and the like, and the stations are mainly formed by connecting various metering, segment and pressure regulating devices through pipe sections. The pipe sections are connected with equipment, and the pipe sections are connected with each other by flanges, so that the leaked gas can cause explosion due to the special flammable and explosive characteristics of natural gas. Causing major production safety accidents. Since the pipe joint is a site where gas leakage is likely to occur, it is necessary to perform leakage detection of the natural gas pipe joint.
According to the operation regulation of the natural gas station, inspection personnel need to perform leakage detection on each pipe section interface of the station every two hours, the detection mode is mainly that a handheld leakage detector is adopted to detect the vicinity of the pipe section interface, and the condition that the detection value is not reached is qualified. For testing effectiveness, most field station workers at present adopt an aluminum foil adhesive tape to seal joints of pipe sections, and during detection, a handheld device is used, a probe penetrates through the adhesive tape, the adhesive tape is inserted into a sealed cavity, and gas concentration is read. And in the next detection period, the probe is continuously used for puncturing, the gas concentration value is read again, the aluminum foil adhesive tape at the joint of a certain pipe section is usually used for a plurality of days, the puncturing detection is carried out for a plurality of times, and then each pipe section is replaced by a new aluminum foil adhesive tape.
However, at present, the aluminum foil tape is adopted for the leakage detection of the pipe section connector to assist in guaranteeing the air tightness, but after the pipe section connector is punctured for many times, the tape is already provided with holes, the basic air tightness cannot be guaranteed, the auxiliary detection effect cannot be achieved, the workload for replacing the aluminum foil tape is huge, and great influence is brought to daily work of a station.
Therefore, how to provide an auxiliary device for natural gas pipeline section leak test can be used for the leak test of natural gas station, valve room pipeline section junction, can reuse, guarantees that the pipeline section interface leak test is normal, is the technical problem that the skilled person in the art needs to solve urgently.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the utility model provides an auxiliary device for natural gas pipeline section leak test can be used for the leak test of natural gas station, valve room pipeline section junction, can reuse, guarantees the pipeline section interface and reveals the test and normally go on.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
an auxiliary device for a natural gas pipeline section leakage test, comprising: elastic sealing band, fixer, detecting valve;
the detection valve is arranged in the middle of the elastic sealing belt and is used for inserting a probe of a detector;
the fixer comprises a first fixing module arranged at the first end of the sealing strip and a second fixing module arranged at the second end of the sealing strip;
when the first fixing module is detachably connected with the second fixing module, the elastic sealing belt is elastically stretched and attached to a natural gas pipe section to be tested.
Preferably, the elastic sealing tape is a flame retardant rubber tape.
Preferably, the fixer is a magic tape;
the magic tape comprises: the male magic tape is fixed at the first end of the sealing tape, and the female magic tape is fixed at the second end of the sealing tape;
the sub magic tape, the main magic tape and the sealing tape are arranged on the first surface and the second surface of the sealing tape respectively.
Preferably, the retainer is a snap fastener;
the snap fastener, comprising: the male buckle is fixed at the first end of the sealing band, and the female buckle is fixed at the second end of the sealing band;
the male buckle is arranged on the first surface of the sealing strip, and the female buckle is arranged on the second surface of the sealing strip.
Preferably, the detection valve is a one-way valve;
when the probe is inserted into the one-way valve, the probe is communicated with a sealing space formed by the sealing belt and the natural gas pipe section; when the detector detects that the one-way valve is pulled out, the one-way valve closes a passage between the sealed space and the outside.
Preferably, the first thickness of the outer peripheral portion of the sealing band is greater than the second thickness of the intermediate portion of the sealing band.
The embodiment of the utility model provides an auxiliary device for natural gas pipeline section leak test, include: elastic sealing band, fixer, detecting valve; the detection valve is arranged in the middle of the elastic sealing belt and is used for inserting a probe of a detector; the fixer comprises a first fixing module arranged at the first end of the sealing strip and a second fixing module arranged at the second end of the sealing strip; work as first fixed module with when the connection can be dismantled to the fixed module of second, elastic sealing strip elastic extension, laminating in the natural gas pipeline section of awaiting measuring, the utility model discloses utilize the check valve, when needs are tested, can insert the check valve with the detector probe, among the prior art, directly use the probe to puncture the sticky tape and compare, can keep auxiliary device's whole integrality, when accomplishing test work, can this auxiliary device of reuse, guarantee that the pipeline section interface reveals the test and normally goes on.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a schematic structural diagram of an auxiliary device for a natural gas pipeline leakage test according to an embodiment of the present invention;
fig. 2 is an expanded structural schematic diagram of an auxiliary device for a natural gas pipe section leakage test according to an embodiment of the present invention;
fig. 3 is an installation implementation schematic diagram of an auxiliary device for a natural gas pipeline leakage test according to an embodiment of the present invention.
The drawings are identified below:
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, fig. 2, and fig. 3, fig. 1 is a schematic structural diagram of an auxiliary device for a natural gas pipe section leakage test according to an embodiment of the present invention; fig. 2 is an expanded structural schematic diagram of an auxiliary device for a natural gas pipe section leakage test according to an embodiment of the present invention; fig. 3 is an installation implementation schematic diagram of an auxiliary device for a natural gas pipeline leakage test according to an embodiment of the present invention.
The embodiment of the utility model provides an auxiliary device 100 for natural gas pipeline section leak test, include: an elastic sealing band 110, a holder 120, a check valve 130; the check valve 130 is disposed in the middle of the elastic sealing band 110 for inserting a probe of a probe; the holder 120 comprises a first fixing module 121 disposed at a first end of the sealing band, a second fixing module 122 disposed at a second end of the sealing band; when the first fixing module 121 and the second fixing module 122 are detachably connected, the elastic sealing tape 110 elastically stretches and fits to the natural gas pipe section to be tested.
In particular arrangements, the elastic sealing band 110 may be a flame retardant rubber band. The sealing strip is made of flame-retardant rubber, has good elastic air tightness, is flame-retardant, fireproof and low in price, is not easy to damage, and has great advantages compared with aluminum foil materials.
The utility model discloses a fixer 120 can have multiple form, for example magic subsides, snap-fastener, magnetic force actuation device etc. use fixer 120 to explain as the example for the magic subsides below, specifically this magic subsides, include: the male magic tape is fixed at the first end of the sealing tape, and the female magic tape is fixed at the second end of the sealing tape; the sub magic tape, the main magic tape and the sealing tape are arranged on the first surface and the second surface of the sealing tape respectively. That is to say, fix respectively at sealing band head and tail, openly fix the sealing band inboard, the reverse side is fixed the sealing band outside, and the positive and negative both sides adopt the magic tape form, and the positive and negative laminating can closely paste. The sealing tape is formed into an annular configuration and secured to the seam of the pipe section. The fixing paste can be manually torn off when the sealing tape is detached, and the sealing tape can be repeatedly used.
In yet another embodiment of the present invention, the holder 120 may be provided as a snap; this snap fastener includes: the male buckle is fixed at the first end of the sealing band, and the female buckle is fixed at the second end of the sealing band; the male buckle is arranged on the first surface of the sealing strip, and the female buckle is arranged on the second surface of the sealing strip. Of course, as the buckling area of the snap fasteners is small, more than one snap fasteners can be arranged in parallel to realize the joint of the sealing tape and the natural gas pipe section to be tested.
Further, the check valve may be provided as a check valve; when the probe is inserted into the one-way valve, the probe is communicated with a sealing space formed by the sealing belt and the natural gas pipe section; when the detector detects that the one-way valve is pulled out, the one-way valve closes a passage between the sealed space and the outside. Specifically, the check valve 130 can be set as a plastic gas check valve with a moderate size, the middle hole can be used for inserting a probe of a detector, after detection, the valve is closed again, the check valve can be used repeatedly, and the air tightness can be guaranteed, so that the detection effectiveness is guaranteed.
It is worth pointing out that on the basis of the above-mentioned embodiments, in the present embodiment, in order to enable an effective closed cavity to be formed between the sealing band and the natural gas pipe section to be detected, the first thickness of the outer peripheral portion 150 of the sealing band may be greater than the second thickness of the middle portion 140 of the sealing band. Therefore, the gathering of gas can be facilitated, the whole elastic sealing belt 110 can form a concave groove body, the groove body is buckled with the natural gas pipe section, the gathering of leaked natural gas can be facilitated, and the detector can be conveniently used for detecting the leaked gas in the follow-up process.
As shown in fig. 3, when the first natural gas pipe section 210 and the second natural gas pipe section 220 are joined, due to technical reasons or long-time natural aging reasons, a gap may be formed between the first natural gas pipe section 210 and the second natural gas pipe section 220, and then gas leaks, at this time, the auxiliary device 100 provided by the embodiment of the present invention may be disposed at the joint portion of the first natural gas pipe section 210 and the second natural gas pipe section 220, so as to capture the gas leaking from the joint portion, and facilitate the subsequent probe of the probe to be inserted into the detection valve 130 for gas detection.
The embodiment of the utility model provides an auxiliary device for natural gas pipeline section leak test when needs are tested, can insert the detection valve with the detector probe, with prior art in, directly use the probe to puncture the sticky tape and compare, can keep auxiliary device's whole integrality, when accomplishing test work, can this auxiliary device of reuse, guarantee that the pipeline section interface reveals the test and normally goes on.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (6)
1. An auxiliary device for a natural gas pipeline section leakage test is characterized by comprising: elastic sealing band, fixer, detecting valve;
the detection valve is arranged in the middle of the elastic sealing belt and is used for inserting a probe of a detector;
the fixer comprises a first fixing module arranged at the first end of the sealing strip and a second fixing module arranged at the second end of the sealing strip;
when the first fixing module is detachably connected with the second fixing module, the elastic sealing belt is elastically stretched and attached to a natural gas pipe section to be tested.
2. The auxiliary device for a natural gas pipeline section leakage test according to claim 1,
the elastic sealing belt is a flame-retardant rubber belt.
3. The auxiliary device for a natural gas pipeline section leakage test according to claim 1,
the fixer is a magic tape;
the magic tape comprises: the male magic tape is fixed at the first end of the sealing tape, and the female magic tape is fixed at the second end of the sealing tape;
the sub magic tape, the main magic tape and the sealing tape are arranged on the first surface and the second surface of the sealing tape respectively.
4. The auxiliary device for a natural gas pipeline section leakage test according to claim 1,
the fixer is a snap fastener;
the snap fastener, comprising: the male buckle is fixed at the first end of the sealing band, and the female buckle is fixed at the second end of the sealing band;
the male buckle is arranged on the first surface of the sealing strip, and the female buckle is arranged on the second surface of the sealing strip.
5. The auxiliary device for a natural gas pipeline section leakage test according to claim 1,
the detection valve is a one-way valve;
when the probe is inserted into the one-way valve, the probe is communicated with a sealing space formed by the sealing belt and the natural gas pipe section; when the detector detects that the one-way valve is pulled out, the one-way valve closes a passage between the sealed space and the outside.
6. The auxiliary device for a natural gas pipeline section leakage test according to any one of claims 1 to 5,
the sealing band has a first thickness at an outer peripheral portion thereof greater than a second thickness at a middle portion thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921564712.0U CN210739997U (en) | 2019-09-19 | 2019-09-19 | Auxiliary device for natural gas pipe section leakage test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921564712.0U CN210739997U (en) | 2019-09-19 | 2019-09-19 | Auxiliary device for natural gas pipe section leakage test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210739997U true CN210739997U (en) | 2020-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921564712.0U Active CN210739997U (en) | 2019-09-19 | 2019-09-19 | Auxiliary device for natural gas pipe section leakage test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210739997U (en) |
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2019
- 2019-09-19 CN CN201921564712.0U patent/CN210739997U/en active Active
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