CN209604909U - A kind of gas pipeline pressure maintaining detection device - Google Patents
A kind of gas pipeline pressure maintaining detection device Download PDFInfo
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- CN209604909U CN209604909U CN201920287737.4U CN201920287737U CN209604909U CN 209604909 U CN209604909 U CN 209604909U CN 201920287737 U CN201920287737 U CN 201920287737U CN 209604909 U CN209604909 U CN 209604909U
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- under test
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- 238000001514 detection method Methods 0.000 title claims abstract description 34
- 230000000903 blocking effect Effects 0.000 claims abstract description 8
- 238000010276 construction Methods 0.000 abstract description 8
- 239000007789 gas Substances 0.000 description 23
- 238000010586 diagram Methods 0.000 description 3
- 239000000284 extract Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000000567 combustion gas Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- ZPUCINDJVBIVPJ-LJISPDSOSA-N cocaine Chemical compound O([C@H]1C[C@@H]2CC[C@@H](N2C)[C@H]1C(=O)OC)C(=O)C1=CC=CC=C1 ZPUCINDJVBIVPJ-LJISPDSOSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 201000001371 inclusion conjunctivitis Diseases 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 206010044325 trachoma Diseases 0.000 description 1
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Abstract
The utility model discloses a kind of gas pipeline pressure maintaining detection devices, detection components are suppressed including being located at the seal assembly at pipe under test both ends and being plugged in pipe under test, suppressing detection components includes suppress pipe, the suppress pipe, which is located at, is equipped with temperature sensor, pressure sensor the section in pipe under test Nei, the temperature sensor, pressure sensor are electrically connected with CPU processor, the seal assembly includes rugged housing, sealing-plug is equipped in the rugged housing, one end of the sealing-plug is equipped with counterbore, and blocking head is equipped in the counterbore；The utility model proposes this gas pipeline pressure maintaining detection device, more accurate pressure maintaining detection test accurately can be carried out to gas pipeline, and using test result as pipeline-weld whether He Ge reference standard, it is ensured that the construction quality of gas pipeline and further exclude gas leakage security risk.
Description
Technical field
The utility model belongs to gas pipeline engineering item detection equipment technical field more particularly to a kind of gas pipeline is protected
Press detection device.
Background technique
Combustion gas mainly passes through dedicated gas pipeline and is delivered to huge numbers of families, and gas pipeline is as important basis in city
Facilities engineering, concerning the daily life of town dweller, therefore the requirement of combustion gas unit and unit in charge of construction to construction quality
It is increasingly stringenter, wherein the leakproofness of gas pipeline is particularly important.Gas pipeline mainly pass through mostly with pipeline in a welding manner
It is connected, the requirement according to country to the engineering construction of city gas transmission & distribution and acceptance specification, in town gas pipe work progress
Strength test and leak test need to be suppressed when with gas pipeline final acceptance of construction, general use injects air dielectric into pipeline
Pressure maintaining is carried out and detects pressure drop judge whether pipeline welding quality is qualified to pipeline.
Usual unit in charge of construction carries out pressure maintaining detection using mechanical pressure gauge, and pressure gauge precision prescribed is 1.5 grades, and is being suppressed
Front end and end respectively set one piece of pressure gauge, however according to the difference of duct length and pressure rating, pressure maintaining pipe in pressure maintaining period
Air dielectric is influenced by factors such as weather temperature, compressibility factors in road, when pipeline-weld is there are when the minute leakages such as trachoma, pressure
Power lifting phenomenon is unable to judge accurately whether gas pipeline welding quality is qualified at all, therefore there are certain Safety Managements
Loophole.
Utility model content
In order to solve the problems of the above-mentioned prior art, the utility model proposes a kind of gas pipeline pressure maintaining detections to set
It is standby, can more it is accurate accurately to gas pipeline carry out pressure maintaining detection test, and using test result as pipeline-weld whether
Qualified reference standard, it is ensured that the construction quality of gas pipeline and the security risk for further excluding gas leakage.
The technical solution of the utility model is achieved in that
A kind of gas pipeline pressure maintaining detection device, which is characterized in that including be located at pipe under test both ends seal assembly with
And be plugged in pipe under test and suppress detection components, suppressing detection components includes suppress pipe, one end of the suppress pipe protrude into
In test tube road, the suppress pipe, which is located at, is equipped with temperature sensor, pressure sensor, the suppress pipe section in pipe under test Nei
Section outside pipe under test, which is equipped with, suppresses mouth, and the other end of the suppress pipe is sealed end, fixes in the suppress pipe
There is air pressure to detect integrated housing, which, which detects, is equipped with CPU processor, the temperature sensor, pressure sensing in integrated housing
Device is electrically connected with CPU processor, and the outside wall surface of the air pressure detection integrated housing is equipped with display field, operation button
Area；
The seal assembly includes rugged housing, sealing-plug is equipped in the rugged housing, it is heavy that one end of the sealing-plug is equipped with
Hole, the counterbore is interior to be equipped with blocking head, and the sealing-plug is set on the port of pipe under test by counterbore, the circle of the blocking head
Circumferential surface and the inner wall of pipe under test fit, and described rugged housing one end is open end, which is set in pipe under test
On, the outside wall surface of the pipe under test is equipped with circular raised section, which is equipped with thread segment, the fastening
The open end of shell leans with circular raised section, and the outside wall surface at rugged housing corresponding opening end is equipped with and thread segment
The assisting screw flight matched, the annular shape raised section is equal with the diameter of rugged housing open end, the circular protrusion
Collar is screwed in section；
The blocking head is equipped with fastening through-hole, which is arranged along the length direction of pipe under test, the fastening
The other end of shell is sealed end, and the sealed end of aperture towards the rugged housing of the fastening through-hole gradually reduces, and the fastening is logical
It is equipped with fastening plug in hole, which is adapted in a circular table shape with fastening through-hole, and the sealed end of the rugged housing is equipped with spiral shell
Pit, the threaded hole is interior to be equipped with threaded rod, and one end of the threaded rod protrudes into fastening through-hole and is pierced by fastening plug, the fastening plug
An end face far from rugged housing is equipped with support chip, which mutually fixes with threaded rod.
In the present invention, the display field includes the viewing area of data acquisition for the first time, secondary data acquisition display
Area, determines results display area at results of measuring viewing area.
In the present invention, the operation button area includes parameter setting control key, data acquisition control key, measuring and calculating control
Key processed determines control key.
In the present invention, the both ends for suppressing detection components and setting there are two and being located at pipe under test.
In the present invention, the other end of the threaded rod is equipped with nut, is arranged with retaining bullet on the threaded rod
Spring, sealed end of the both ends of the retaining spring respectively with nut and rugged housing lean.
Compared with prior art, implement this gas pipeline pressure maintaining detection device in the utility model, have with following
Beneficial effect: can mainly have by the composition such as pressure sensor, temperature sensor, CPU processor and light-emitting diode display in this programme
The temperature difference causes the factor influenced on pipeline pressure when effect purging line construction pressure maintaining.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the structural schematic diagram that detection components are suppressed in Fig. 1；
Fig. 3 is the structural schematic diagram of seal assembly in Fig. 1.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe.
This gas pipeline pressure maintaining detection device as shown in the figure, including be located at 1 both ends of pipe under test seal assembly 2 with
And be plugged in pipe under test 1 and suppress detection components 3, suppressing detection components 3 includes suppress pipe 31, one end of the suppress pipe 31
It protruding into pipe under test 1, suppress pipe 31, which is located at, is equipped with temperature sensor 32, pressure sensor 33 section in pipe under test 1 Nei,
Suppress pipe 31 is located at the section outside pipe under test 1 equipped with mouth 34 is suppressed, and air pressure detection integrated housing is fixed in suppress pipe 34
35, which detects and is equipped with CPU processor in integrated housing 35, and temperature sensor 32, pressure sensor 33 are and CPU processor
Electrical connection, the outside wall surface that air pressure detects integrated housing 35 are equipped with display field 4, operation button area 5.
Wherein, display field 4 includes the viewing area of data acquisition for the first time, secondary data acquires viewing area, results of measuring is shown
Show area, determine results display area；Operation button area 5 include parameter setting control key, data acquisition control key, measuring and calculating control key,
Determine control key.
In order to improve the precision of detection, suppressing detection components 3 should set there are two and be located at the two of pipe under test 1
End, is detected with this come the air pressure respectively to 1 two end points of pipe under test.
Seal assembly 2 includes rugged housing 21, is equipped with sealing-plug 22 in the rugged housing 21, one end of the sealing-plug 22 is set
There is counterbore, blocking head 23 is equipped in the counterbore, sealing-plug 22 is set on the port of pipe under test 1 by counterbore, and head 23 is blocked
Periphery and the inner wall of pipe under test 1 fit, 21 one end of rugged housing is open end, which is set in test tube
On road 1, the outside wall surface of pipe under test 1 is equipped with circular raised section 11, which is equipped with thread segment, fastening
The open end of shell 21 leans with circular raised section 11, and the outside wall surface at 21 corresponding opening end of rugged housing is equipped with and screw thread
The assisting screw flight that section matches, circular raised section 11 is equal with the diameter of 21 open end of rugged housing, circular raised section
Collar 12 is screwed on 11.
It blocks head 23 and is equipped with fastening through-hole 24, which is arranged along the length direction of pipe under test 1, fastens shell
The other end of body 21 is sealed end 25, and the sealed end 25 of aperture towards the rugged housing 21 of fastening through-hole 24 gradually reduces, and fastening is logical
Be equipped with fastening plug 26 in hole 24, the fastening plug 26 be adapted with fastening through-hole 24 it is in a circular table shape, on the sealed end of rugged housing 21
Equipped with threaded hole, threaded rod 27 is equipped in the threaded hole, one end of threaded rod 27 protrudes into fastening through-hole 24 and is pierced by fastening plug 26,
26 end faces far from rugged housing 21 of fastening plug are equipped with support chip 28, which fixes with 27 phase of threaded rod.
In order to improve the tightness of threaded rod 27, it can choose and nut is set on the other end of threaded rod 27, and
Retaining spring is arranged on threaded rod 27.
The principle that predominantly detects of this programme is, shows pressure value observation by equipment LED, beats into pipe under test row
Pressure, stops suppressing when reaching required pressure value, after manifold pressure is stablized, is mentioned by pressure sensor and temperature sensor
The pressure and temperature parameter for taking air in pipeline extracts air dielectric pressure and temperature in pipeline when reaching the dwell time again
Spend parameter, to front and back, temperature parameter carries out processing comparison to CPU twice, and calculating pressure parameter should be value, then with surveyed in pipeline
Pressure value compares, and calculates contrast differences, when contrast differences are 0, illustrates that then pressure maintaining is qualified without pressure is fallen.
Computing Principle is according to perfect gas equation: PV=nRT, Z=PV/nRT wherein: P be gaseous state parameter pressure
By force, unit Pa；V is volume, unit m3；N refers to the amount of gaseous matter, unit mol；T is absolute temperature, unit K；R is that ratio is normal
Number, unit J/ (mol*K), in mole state equation indicated, R is thermodynamic equilibrium constant, and for any perfect gas, R is
Certain, about 8.31441 ± 0.00026 J/ (mol*K), Z are compressibility factor, and party's formula describes perfect gas and is being in
When equilibrium state, the state equation of the relationship between pressure, volume, the amount of substance, temperature.It is established in Boyle's law, Charlie
On the empirical laws such as law, gay lussacs law.
When pipeline is suppressed it is stable when CUP processor extract pressure (P1) and temperature (T1) parameter, need the dwell time when reaching
When, CUP processor extracts pressure (P2) again), temperature parameter (T2), calculate the temperature change (T1-T2) in pipe under test,
And successively it is how many to calculate this temperature change to the air pressure change generated in pipe under test, by the reality in pipe under test
Atmospheric pressure value gets rid of the initial gas pressure value because of temperature change and bring draught head, the atmospheric pressure value obtained at this time and pipe under test
It compares, obtains the gas pressure leak amount in pipe under test whether in acceptable safety standard.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, made any modification, equivalent replacement and improvement etc. should be included in the utility model
Protection scope within.
Claims (5)
1. a kind of gas pipeline pressure maintaining detection device, which is characterized in that including be located at pipe under test both ends seal assembly and
It is plugged in pipe under test and suppresses detection components, suppressing detection components includes suppress pipe, and one end of the suppress pipe is protruded into be measured
In pipeline, the suppress pipe, which is located at, is equipped with temperature sensor, pressure sensor, the suppress pipe position section in pipe under test Nei
It is equipped in the section outside pipe under test and suppresses mouth, the other end of the suppress pipe is sealed end, is fixed in the suppress pipe
Air pressure detects integrated housing, which, which detects, is equipped with CPU processor, the temperature sensor, pressure sensor in integrated housing
It is electrically connected with CPU processor, the outside wall surface of the air pressure detection integrated housing is equipped with display field, operation button area；
The seal assembly includes rugged housing, and sealing-plug is equipped in the rugged housing, and one end of the sealing-plug is equipped with counterbore, should
Blocking head is equipped in counterbore, the sealing-plug is set on the port of pipe under test by counterbore, the periphery of the blocking head
It fits with the inner wall of pipe under test, described rugged housing one end is open end, which is set in pipe under test, institute
The outside wall surface for stating pipe under test is equipped with circular raised section, which is equipped with thread segment, the rugged housing
Open end lean with circular raised section, the outside wall surface at rugged housing corresponding opening end is equipped with and thread segment matches
The assisting screw flight of conjunction, the annular shape raised section is equal with the diameter of rugged housing open end, on the annular shape raised section
It is screwed with collar；
The blocking head is equipped with fastening through-hole, which is arranged along the length direction of pipe under test, the rugged housing
The other end be sealed end, the sealed end of aperture towards the rugged housing of the fastening through-hole gradually reduces, in the fastening through-hole
Filled in equipped with fastening, the fastening plug be adapted with fastening through-hole it is in a circular table shape, the sealed end of the rugged housing equipped with threaded hole,
Threaded rod is equipped in the threaded hole, one end of the threaded rod protrudes into fastening through-hole and is pierced by fastening plug, and the fastening plug is separate
One end face of rugged housing is equipped with support chip, which mutually fixes with threaded rod.
2. a kind of gas pipeline pressure maintaining detection device according to claim 1, which is characterized in that the display field packet
It includes the viewing area of data acquisition for the first time, secondary data acquisition viewing area, results of measuring viewing area, determine results display area.
3. a kind of gas pipeline pressure maintaining detection device according to claim 2, which is characterized in that the operation button area packet
It includes parameter setting control key, data acquisition control key, measuring and calculating control key, determine control key.
4. a kind of gas pipeline pressure maintaining detection device according to claim 3, which is characterized in that described to suppress detection components
If there are two and be located at the both ends of pipe under test.
5. a kind of gas pipeline pressure maintaining detection device according to claim 4, which is characterized in that the threaded rod it is another
End is equipped with nut, is arranged with retaining spring on the threaded rod, the both ends of the retaining spring respectively with nut and rugged housing
Sealed end lean.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920287737.4U CN209604909U (en) | 2019-03-07 | 2019-03-07 | A kind of gas pipeline pressure maintaining detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920287737.4U CN209604909U (en) | 2019-03-07 | 2019-03-07 | A kind of gas pipeline pressure maintaining detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209604909U true CN209604909U (en) | 2019-11-08 |
Family
ID=68404139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920287737.4U Expired - Fee Related CN209604909U (en) | 2019-03-07 | 2019-03-07 | A kind of gas pipeline pressure maintaining detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209604909U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112903058A (en) * | 2021-01-25 | 2021-06-04 | 北京中建建筑科学研究院有限公司 | Volume detection device and detection method |
| CN112903211A (en) * | 2021-03-29 | 2021-06-04 | 广州燃气集团有限公司 | Equipment and method for detecting tightness of gas pipeline |
-
2019
- 2019-03-07 CN CN201920287737.4U patent/CN209604909U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112903058A (en) * | 2021-01-25 | 2021-06-04 | 北京中建建筑科学研究院有限公司 | Volume detection device and detection method |
| CN112903211A (en) * | 2021-03-29 | 2021-06-04 | 广州燃气集团有限公司 | Equipment and method for detecting tightness of gas pipeline |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191108 |
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| CF01 | Termination of patent right due to non-payment of annual fee |