CN111896190A - Liquefied petroleum gas transmission pipeline interface detection device - Google Patents
Liquefied petroleum gas transmission pipeline interface detection device Download PDFInfo
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- CN111896190A CN111896190A CN202010788782.5A CN202010788782A CN111896190A CN 111896190 A CN111896190 A CN 111896190A CN 202010788782 A CN202010788782 A CN 202010788782A CN 111896190 A CN111896190 A CN 111896190A
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- Prior art keywords
- liquefied petroleum
- petroleum gas
- detection device
- pipeline interface
- top box
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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
- G01M3/12—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing elastic covers or coatings, e.g. soapy water
- G01M3/14—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing elastic covers or coatings, e.g. soapy water for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
- G01M3/143—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing elastic covers or coatings, e.g. soapy water for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for pipe joints or seals
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- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention provides a liquefied petroleum gas transmission pipeline interface detection device which comprises a base box and a top box, wherein the base box and the top box are matched in a covering mode, the base box and the top box form a sealed accommodating inner cavity after covering, a pipeline interface to be detected is accommodated in the accommodating inner cavity, a sealed expansion air bag is arranged on the top box, and whether gas leakage exists or not is detected through the expansion size of the air bag. This scheme simple structure, convenient operation, the effectual detection efficiency who has improved even mouthful sealed effect to the pipeline, it is high to detect the precision, is convenient for improve safe in utilization, prevents accident's emergence, can reduce the conveying loss simultaneously, the saving of the energy of being convenient for.
Description
Technical Field
The invention relates to the field of liquefied petroleum gas filling equipment, in particular to a liquefied petroleum gas transmission pipeline interface detection device.
Background
The liquefied petroleum gas is a byproduct obtained when a refinery carries out catalytic cracking and thermal cracking of crude oil. The liquefied petroleum gas is mainly used as petrochemical raw material, used for preparing ethylene by hydrocarbon cracking or preparing synthetic gas by steam conversion, and can be used as fuel for industrial, civil and internal combustion engines. With the development of the petroleum industry in China, many towns have started to use liquefied petroleum gas as fuel.
In liquefied petroleum gas's filling field, can erect a lot of liquefied petroleum gas transmission pipeline to transmission pipeline kind is numerous many, the complicacy is complicated, the pipe diameter size is inconsistent, can install different parts on the transmission pipeline of difference moreover: for example a fixed flange connecting the two pipes, a service nozzle, for example projecting downwards and mounted on the transport pipe, a temporary adapter nozzle, a gas meter, for example projecting upwards and mounted on the transport pipe, etc. These are connected to the inside of the transfer pipe so that there may be problems with seal failure and leakage. If air leakage occurs, a very serious safety accident may occur. For this reason, it is necessary to perform gas leakage detection and monitoring of these components on the transport pipeline at irregular intervals. The detection in the prior art has the following technical problems:
firstly, the detection precision is not high, and the security is low. In the prior art, the position to be detected is manually brushed with soap water, and if the soap water bubbles, air leakage is judged. However, this detection method cannot guarantee the detection accuracy, because it is known that soap water may generate bubbles in the wiping process, and the bubbles are not generated by air leakage and blowing. Therefore, the manual judgment is inaccurate, whether air leakage exists or not is possible, and if air leakage is judged, the part needs to be sealed and repaired again, time and labor are wasted, and the maintenance and replacement cost is greatly increased. It may be true air leakage and artificially judge that soap water bubbles themselves, which may not perform sealing maintenance treatment on the air leakage point, so that the subsequent air leakage causes a series of safety risks and is extremely dangerous.
Secondly, the detection difficulty is high, and the efficiency is low. As mentioned above, the existing liquefied petroleum gas transmission pipeline is numerous in types, complicated and intricate, and the pipe diameter is not uniform, and can install the part of equidimension not, different specifications, different orientations on the transmission pipeline of different pipe diameters, various spare parts make the soapy water of brush not easy, and because part self structure problem makes many places soapy water be difficult for adhering to, or the adhesion volume is very little, lead to even leak gas and also can not blow the bubble, so this make the detection very big that detects difficultly, high labor strength, detection efficiency is low, it is not high to detect the precision.
Thirdly, the soapy water has certain corrosivity, and the long-term scraping and sweeping of sealing rubber rings and tight parts at the sealing position can cause certain strain corrosion, so that the service life of the equipment is shortened, and the air leakage problem of the equipment can also occur in advance. And the dropped soapy water also causes staggered pollution on other pipeline positions and ground equipment, and the environmental protection property is extremely poor.
And fourthly, continuous monitoring cannot be satisfied. Many pipeline positions may need to be monitored for many days continuously, for example, the flange plate or the instrument which have just been installed, and if the tedious soapy water is repeatedly hung and swept every day, the detection is tedious, the labor intensity is high, and the detection efficiency is low.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the liquefied petroleum gas transmission pipeline interface detection device which is convenient to operate, visual in detection effect and high in detection efficiency.
The technical scheme of the invention is as follows: the liquefied petroleum gas transmission pipeline interface detection device comprises a base box and a top box, wherein the base box and the top box are matched through an upper cover and a lower cover, the base box and the top box form a sealed accommodating inner cavity after the covers are closed, a pipeline interface to be detected is accommodated in the accommodating inner cavity, a sealed expansion air bag is arranged on the top box, and whether gas leaks or not is detected through the expansion size of the air bag.
The advantage of this scheme lies in, installs detection device at the pipeline kneck, observes the change of detection device goes up the gasbag volume through the condition of gas leakage and judges whether gas leakage, can reduce the influence of temperature to detection device simultaneously, installs detection device more than 12 hours at least at the pipeline kneck with detection process, avoids observing the detection of tiny gas leakage, is convenient for simultaneously detect the improvement of precision.
Further, a pressure gauge and a thermometer are also arranged on the top box.
Furthermore, the two sides of the base box and the top box are respectively provided with a lower semicircular opening and an upper semicircular opening which are oppositely opened up and down.
Furthermore, the lower semicircular opening part and the upper semicircular opening part are both provided with elastic sealing elements.
Furthermore, the elastic sealing piece is made of soft rubber, and the elastic sealing piece extends outwards from two sides of the base box and the top box.
Furthermore, the edge of the base box is provided with a sealing convex strip, the edge of the top box is provided with a groove, and a groove soft rubber cushion matched with the sealing convex strip is arranged in the groove.
Further, the base box and the top box are detachably connected through a buckle.
Further, the hinged side of the base box and the hinged side of the top box are opened.
Further, the base box and the top box are sealed and locked through the first locking component.
Furthermore, clear water is injected into the containing inner cavity.
The invention has the following characteristics: this scheme simple structure, convenient operation, the effectual detection efficiency who has improved even mouthful sealed effect to the pipeline, it is high to detect the precision, is convenient for improve safe in utilization, prevents accident's emergence, can reduce the conveying loss simultaneously, the saving of the energy of being convenient for.
The detailed structure of the present invention will be further described with reference to the accompanying drawings and the detailed description.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic view of a base box structure;
FIG. 3 is a schematic view showing the placement of the transfer tube interface;
FIG. 4 is another schematic structural view of the present invention;
FIG. 5 is a schematic view of the operation state of the transfer tube interface;
1-expansion airbag, 2-top box, 3-containing cavity, 4-necking component, 5-base box, 6-elastic sealing element, 7-bayonet, 8-calandria, 9-groove soft rubber cushion, 10-conveying pipe, 11-pipeline interface, 12-convex strip, 13-upper semicircular opening, 14-lower semicircular opening and 15-hinge piece.
Detailed Description
As shown in the attached drawings: the utility model provides a liquefied petroleum gas transmission pipeline interface 11 detection device, closes complex base box 5 and STB 2 including upper and lower lid, and the lid closes back base box 5 and forms with STB 2 and sealedly holds inner chamber 3, holds and hold the pipeline interface 11 of waiting to detect in the inner chamber 3, locates sealed inflation gasbag 1 on the STB 2, whether leaks gas through the expanded size detection of gasbag.
Preferably, the inflatable air bag 1 adopts a tiny and long air bag in the present situation, so that the air leakage situation of the inflatable air bag can be conveniently and rapidly observed, and the length of the air bag is at least 1 cm; preferably, the length of the balloon is 1-5 cm; most preferably, the length of the balloon is 1.5, 2, 3 or 4 cm.
In the embodiment, the top box 2 is further provided with a pressure gauge and a thermometer, so that the detection effect is convenient to improve, meanwhile, the influence of temperature difference or air expansion and contraction on the detection effect is avoided, and the setting of the pressure gauge is convenient for the detection of the sealing effect of the detection device.
In the embodiment, the two sides of the base box 5 and the top box 2 are respectively provided with a lower semicircular opening 14 and an upper semicircular opening 13 which are oppositely opened up and down, the lower semicircular opening 14 and the upper semicircular opening 13 are matched to form a bayonet 7, and the bayonet 7 is used for clamping and sealing the conveying pipe 10. Preferably, the lower semicircular opening part 14 and the upper semicircular opening part 13 are both provided with elastic sealing elements 6, so that conveying pipes 10 with different sizes can be clamped conveniently, and air leakage is avoided. More preferably, elastic sealing member 6 is made for the flexible glue, and elastic sealing member 6 is all extended towards the both sides of base box 5 and STB 2, and the part of extending carries out the chucking once more through the clamp, further promotion sealed effect.
In the embodiment, in order to improve the sealing effect of the detection device, the edge of the base box 5 is provided with a sealing convex strip 12, the edge of the top box 2 is provided with a groove, and a groove soft rubber pad 9 matched with the sealing convex strip 12 is arranged in the groove.
In the embodiment, base box 5 and STB 2 can dismantle the connection through the buckle, are convenient for improve the facility of using, can place base box 5 in the below of pipeline interface 11 earlier in the use, closely cover STB 2 again and close on base box 5, and the operation of being convenient for improves detection efficiency.
In another embodiment, the base box 5 and top box 2 are connected side open by a hinge 15; the base box 5 and the top box 2 are sealed and locked through the first necking component 4, so that the covering efficiency is improved conveniently.
In another embodiment, clear water is injected into the accommodating inner cavity 3, so that the self-inspection sealing effect can be achieved, the gas quantity required by the expansion of the expansion air bag 1 can be reduced, and the detection sensitivity of the detection device on the pipe fitting interface can be improved conveniently.
In the embodiment, the lower end of the base box 5 is provided with the exhaust pipe 8 for discharging or draining the pressure of air, so that the top box can be disassembled conveniently, and the containing inner cavity 3 can be cleaned conveniently.
The preferred embodiments of the present invention have been described in detail above, but it is apparent that the present invention is not limited to the above embodiments. Within the scope of the technical idea of the invention, many equivalent modifications can be made to the technical solution of the invention, and these equivalent modifications are all within the protection scope of the invention. In addition, it should be noted that the respective technical features described in the above-described embodiments may be separately and independently combined as long as they are within the technical concept of the present invention.
Claims (10)
1. The utility model provides a liquefied petroleum gas transmission pipeline interface detection device, closes complex base box and STB including upper and lower lid, and the lid closes back base box and forms sealed the holding inner chamber with the STB, holds and accommodates the pipeline interface that waits to detect in the inner chamber, its characterized in that: the top box is provided with a sealed expansion air bag, and whether air leakage exists or not is detected according to the expansion size of the air bag.
2. The liquefied petroleum gas transmission pipeline interface detection device according to claim 1, wherein: and the top box is also provided with a pressure gauge and a thermometer.
3. The liquefied petroleum gas transmission pipeline interface detection device according to claim 2, wherein: the two sides of the base box and the top box are respectively provided with a lower semicircular opening and an upper semicircular opening which are oppositely opened up and down.
4. The liquefied petroleum gas transmission pipeline interface detection device according to claim 3, wherein: and the lower semicircular opening part and the upper semicircular opening part are both provided with elastic sealing parts.
5. The liquefied petroleum gas transmission pipeline interface detection device according to claim 4, wherein: the elastic sealing piece is made of soft rubber and extends outwards from two sides of the base box and the top box.
6. The liquefied petroleum gas transmission pipeline interface detection device according to claim 1, wherein: the edge of the base box is provided with a sealing convex strip, the edge of the top box is provided with a groove, and a groove soft rubber cushion matched with the sealing convex strip is arranged in the groove.
7. The liquefied petroleum gas transmission pipeline interface detection device according to claim 1, wherein: the base box and the top box are detachably connected through a buckle.
8. The liquefied petroleum gas transmission pipeline interface detection device according to claim 1, wherein: the hinged side of the base box and the hinged side of the top box are opened.
9. The liquefied petroleum gas transmission pipeline interface detection device according to claim 8, wherein: the base box and the top box are sealed and locked through the first locking component.
10. The liquefied petroleum gas delivery pipe joint detection apparatus according to any one of claims 1 to 9, wherein: clear water is injected into the accommodating inner cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010788782.5A CN111896190A (en) | 2020-08-07 | 2020-08-07 | Liquefied petroleum gas transmission pipeline interface detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010788782.5A CN111896190A (en) | 2020-08-07 | 2020-08-07 | Liquefied petroleum gas transmission pipeline interface detection device |
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| Publication Number | Publication Date |
|---|---|
| CN111896190A true CN111896190A (en) | 2020-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010788782.5A Withdrawn CN111896190A (en) | 2020-08-07 | 2020-08-07 | Liquefied petroleum gas transmission pipeline interface detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112903213A (en) * | 2021-01-15 | 2021-06-04 | 凡起平 | System and method for detecting bonding strength of paperboard packaging box |
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| CN205079059U (en) * | 2015-10-10 | 2016-03-09 | 常州绿尚节能科技有限公司 | Secretly bury pipeline leak detection device |
| CN105757372A (en) * | 2016-04-22 | 2016-07-13 | 无锡商业职业技术学院 | Pipeline sealing device with air leakage detection function |
| CN208043858U (en) * | 2018-03-02 | 2018-11-02 | 中国大唐集团科学技术研究院有限公司华中分公司 | A kind of power plant high voltage station arrester on-line monitoring moisture-proof breathing equipment of device |
| EP3540289A1 (en) * | 2016-11-10 | 2019-09-18 | Polygon (Beijing) Energy Technology Corp. | Device and system for monitoring gas level of liquefied petroleum gas cylinder |
| CN110702325A (en) * | 2019-11-25 | 2020-01-17 | 长沙市液化石油气发展有限责任公司 | Detection device for liquefied petroleum gas transmission pipeline system |
| CN210831455U (en) * | 2019-11-28 | 2020-06-23 | 仲玥 | Gas leakage detection device for chemical engineering |
-
2020
- 2020-08-07 CN CN202010788782.5A patent/CN111896190A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205079059U (en) * | 2015-10-10 | 2016-03-09 | 常州绿尚节能科技有限公司 | Secretly bury pipeline leak detection device |
| CN105757372A (en) * | 2016-04-22 | 2016-07-13 | 无锡商业职业技术学院 | Pipeline sealing device with air leakage detection function |
| EP3540289A1 (en) * | 2016-11-10 | 2019-09-18 | Polygon (Beijing) Energy Technology Corp. | Device and system for monitoring gas level of liquefied petroleum gas cylinder |
| CN208043858U (en) * | 2018-03-02 | 2018-11-02 | 中国大唐集团科学技术研究院有限公司华中分公司 | A kind of power plant high voltage station arrester on-line monitoring moisture-proof breathing equipment of device |
| CN110702325A (en) * | 2019-11-25 | 2020-01-17 | 长沙市液化石油气发展有限责任公司 | Detection device for liquefied petroleum gas transmission pipeline system |
| CN210831455U (en) * | 2019-11-28 | 2020-06-23 | 仲玥 | Gas leakage detection device for chemical engineering |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112903213A (en) * | 2021-01-15 | 2021-06-04 | 凡起平 | System and method for detecting bonding strength of paperboard packaging box |
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Application publication date: 20201106 |