CN205786119U - A kind of liquefied petroleum gas steel cylinder water test unit - Google Patents
A kind of liquefied petroleum gas steel cylinder water test unit Download PDFInfo
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- CN205786119U CN205786119U CN201620532699.0U CN201620532699U CN205786119U CN 205786119 U CN205786119 U CN 205786119U CN 201620532699 U CN201620532699 U CN 201620532699U CN 205786119 U CN205786119 U CN 205786119U
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- pipeline
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Abstract
This utility model relates to a kind of liquefied petroleum gas steel cylinder water test unit, including the standard jar being located in water-filled water tank；Water filling for being connected with bottle to be measured hold concurrently drain pipe, inflation hold concurrently exhaustor, inflation holds concurrently exhaustor by connecting gas tube and exhaustor respectively, water filling drain pipe of holding concurrently connects water injection pipe, compression tube, drain pipe and Pressure gauge and connects the measurement pipeline being connected with standard jar, parallel connection balanced valve and differential pressure indicator arrange corresponding pilot control valve on each pipeline on measurement pipeline.This utility model overcome before method precision low, with the naked eye observation judge whether qualified qualitative detection mode, set is detected as detection by quantitative, it is ensured that the accuracy of detection and accuracy, and the rapid automatized detection for cylinder water pressure experiment is laid a good foundation.
Description
Technical field
This utility model belongs to gas cylinder safely detection technique field, is specifically related to a kind of liquefied petroleum gas steel cylinder
Water test unit.
Background technology
GB5842-2006 " liquefied petroleum gas steel cylinder ", " liquefied petroleum gas steel cylinder is fixed for GB8334-2011
Phase inspection and evaluation ", GB/T9251-2011 " gas cylinder by hydrostatic pressure test method " is to liquefied petroleum gas steel cylinder
Water pressure test detection method specifies, as shown in Figure 1 (K is stress test instrument, and KT is precision pressure gauge):
1) by special joint R, pipe-line system is measured in bottle I to be measured access.
2) close valve P1, open valve P2, P3, P4, P5, the test water in tank W is noted
Enter steel cylinder；
3) close valve P2 when seeing the overflow pipe spilling water that valve P5 connects, be exhausted；
4) close valve P5 after aerofluxus completes, open pressurizer J；
5) when Pressure gauge arrives 2.1MPa, close pressurizer J, observe bottle with or without deformation？Have
Ne-leakage？
6) continue to boost to 3.2MPa, close pressurizer J, pressurize 1 minute, observe bottle with or without
Deformation？There is ne-leakage？And perform record；
7) open valve P5, carry out pressure release, unload steel cylinder after pressure back to zero and carry out draining.
There is problems with or defect in above-mentioned method of testing:
1) due to higher by measuring pressure, manometric precision will not be the highest, it is difficult to measures the small of pressure
Change.As test pressure be 3.2MPa time, measurement scope be 5MPa precision be 1.0 Pressure gauge its
Little sensed pressure is changed to 50000Pa, and pressure when steel cylinder exists minute leakage changes only about
1000-2000Pa/ is per minute, therefore the leakage of steel cylinder time less this method be difficult to detect.
2) this method relies primarily on the indicator variable quantity of human eye observation's pointer pressure to differentiate steel cylinder
Whether qualified, due to the impact of human-body fatigue degree, and the restriction of naked eyes diversity, different people is in difference
Same detection steel cylinder may be provided different judgements period, therefore it cannot be guaranteed that the unified of detection is marked
Accurate.
Utility model content
The purpose of this utility model is to solve above-mentioned technical problem and provides a kind of immersion method differential pressure type
Asymmetric liquefied petroleum gas steel cylinder water test unit.
For achieving the above object, this utility model adopts the following technical scheme that
A kind of liquefied petroleum gas steel cylinder water test unit, including being located in water-filled water tank (4)
Standard jar (3)；The volume of standard jar (3) is less than the volume of bottle to be measured (7)；For respectively with to be measured
Hold concurrently drain pipe (71), inflation of the water filling that connects of screw thread rotation joint (6) of bottle is held concurrently exhaustor (70)；
Described inflation exhaustor of holding concurrently connects gas tube (8) and exhaustor (14) respectively by a three way cock,
Described water filling drain pipe (71) of holding concurrently includes for being connected the first pipeline section with the screw thread rotation joint on bottle to be measured,
Described first pipeline section connects first four-way connection, and described first four-way connection is connected by the second pipeline section
Second four-way connection, water filling port connection water injection pipe (15) of described second four-way connection, described first
One side interface of individual four-way connection connects compression tube (9), another side interface connects with standard jar even
The measurement pipeline connect, a balanced valve P in parallel and differential pressure indicator (5) on described measurement pipeline；Described
One side interface of two four-way connections connects a Pressure gauge (2), and another side interface connects draining
Pipe (10)；On described gas tube, exhaustor, drain pipe, water injection pipe, measurement pipeline and compression tube
It is equipped with a stop valve, including charge valve P1, air bleeding valve P2, drain valve P3, water injection valve P4, survey
Amount valve P5, pressurizing valve P6.
Stop valve on described measurement pipeline be arranged on the parallel pipeline of connecting balanced valve P and differential pressure indicator 5 with
On one section of measurement pipeline of the side interface of first four-way connection.
Described Pressure gauge and differential pressure indicator use high-precision pressure sensor and differential pressure pickup.
Described stop valve is pneumatic stopping valve.
This utility model overcome before method precision is low, with the naked eye observation judges whether qualified qualitative
Detection mode, set is detected as detection by quantitative, it is ensured that the accuracy of detection and accuracy, for steel cylinder
The rapid automatized detection of the water pressure test is laid a good foundation.
Accompanying drawing explanation
Fig. 1 illustrates the schematic diagram of existing liquefied petroleum gas steel cylinder water test unit；
Fig. 2 illustrates the schematic diagram of liquefied petroleum gas steel cylinder water test unit of the present utility model.
Detailed description of the invention
Below, in conjunction with example, substantive distinguishing features of the present utility model and advantage are further described, but
This utility model is not limited to listed embodiment.
Shown in Figure 2, a kind of liquefied petroleum gas steel cylinder water test unit, including:
It is located at the standard jar 3 in water-filled water tank 4；The volume of standard jar 3 is less than the body of bottle 7 to be measured
Long-pending；Hold concurrently drain pipe 71, inflation of the water filling being connected for screw thread rotation joint 6 with bottle 7 to be measured respectively is held concurrently
Exhaustor 70；Described inflation exhaustor of holding concurrently connects gas tube 8 and exhaustor respectively by a three way cock
14, described water filling drain pipe 71 of holding concurrently includes for being connected with the screw thread rotation joint 6 on bottle 7 to be measured
One pipeline section, described first pipeline section connects first four-way connection, and described first four-way connection passes through second
Pipeline section connects second four-way connection, and the water filling port of described second four-way connection connects water injection pipe 15, described
One side interface of first four-way connection be connected to introduce compression tube 9 that compressed air carries out pressurizeing,
Another side interface connects the measurement pipeline being connected with standard jar 3, and described measurement pipeline is connected in parallel one
Individual balanced valve P and a differential pressure indicator 5；One side interface of described second four-way connection connects a pressure
Power table 2, another side interface connects drain pipe 10；Described gas tube 8, described exhaustor 14, draining
Pipe 10, water injection pipe 15, compression tube 9 and measurement pipeline are provided with a stop valve；Described stop valve
It is respectively P1, P2, P3, P4, P5, P6.
Stop valve on described measurement pipeline be arranged on the parallel pipeline of connecting balanced valve P and differential pressure indicator 5 with
On one section of measurement pipeline pipeline of the side interface of first four-way connection.
Wherein, described Pressure gauge and differential pressure indicator use high-precision pressure sensor and differential pressure pickup.
This utility model uses high-precision pressure sensor and differential pressure pickup by Pressure gauge and differential pressure indicator,
Relying primarily on human eye observation's indicator variable quantity, to differentiate steel cylinder, whether qualified method becomes using sensor
The method carrying out perception, overcomes due to the impact of human-body fatigue degree, and the restriction of naked eyes diversity, significantly
Improve accuracy of detection.
It should be noted that in this utility model, described stop valve P1, P2, P3, P4, P5, P6
For pneumatic stopping valve, source of the gas it is controlled opening and closing by controlling air pipe system.
Wherein, in this utility model, described gas tube 8, described exhaustor 14, drain pipe 10,
A manual ball valve 1 is further respectively had on water injection pipe 15, compression tube 9 and measurement pipeline.
This utility model is by increasing a standard jar in measuring pipeline, between bottle to be measured and standard jar
One differential pressure indicator 5 and a balanced valve P in parallel are set.
Owing to during pressurization, balanced valve P opens, bottle 7 to be measured and standard jar 3 pressurize simultaneously and are in same pressure
Under；During measurement, balanced valve P closes, as long as differential pressure indicator 5 measures the small pressure between bottle to be measured and standard jar
Difference change, it is possible to perceive the leakage of bottle to be measured, the measurement scope of such differential pressure indicator 5 is the most optional relatively
Little, the precision of differential pressure indicator 5 is considerably improved, and the accuracy of detection of system is also considerably improved.
So, by Theoretical Calculation and experimental verification, the judgement that cylinder water pressure experiment is the most qualified is determined
Index, just can become accurate detection by quantitative original qualitative detection, it is ensured that the concordance of detection process.
Further, in order to solve after increasing standard jar, former measurement system bulk increases, floor space increases
Problem, in this utility model into, standard jar 3 is changed the bottle of small volume, i.e. less than bottle to be measured
Volume (concrete volume size does not limits, as long as amassing less than bottle to be measured, is theoretically obtainable the least,
Half such as the volume of bottle to be measured is the least), i.e. define asymmetric differential pressure type and measure system.Right
It is modified by Artificial intelligent algorithm due to asymmetric caused impact in measuring, both ensured
Floor space does not increases, and ensures again the accuracy measured.
It should be noted that in this utility model, in order to overcome the environmental factors impact on standard jar, will
Standard jar is immersed in a water-filled water tank, considerably reduces the environmental factors such as temperature, air-flow
Interference, it is ensured that detection process is reliably carried out.
The immersion method differential pressure type asymmetric liquefied petroleum gas steel cylinder water pressure test is produced by above method
Device, overcome before method precision low, with the naked eye observation judge whether qualified qualitative detection mode,
Set is detected as detection by quantitative, it is ensured that the accuracy of detection and accuracy are the fast of cylinder water pressure experiment
Speed Aulomatizeted Detect is laid a good foundation.
During measurement, screw thread rotation joint 6 is connected with bottle 7 to be measured, and by spiral rotating joint 7 with
Water injection pipe 71, exhaustor 70 are connected, and then use following operating procedure to test:
S1, opens balanced valve P, closes stop valve P1, P2, P3, P4, P5, P6 in measurement apparatus；
S2, opens water injection valve P4 and air bleeding valve P2, measures valve P5, to bottle 7 to be measured water filling, until water is full
Rear closedown water injection valve P4 and air bleeding valve P2；
S3, opens pressurizing valve P6 introducing pressurized with compressed air and presets pressure values to first, after 2.1MPa,
Closing pressurizing valve P6, a period of time is stablized in pressurize, after the several seconds, the 3-5 second, opens air bleeding valve P2 and enters
Row aerofluxus；
S4, closes air bleeding valve P2 after aerofluxus, then opens pressurizing valve P6 and be pressurized to second and preset pressure values, as
3.2MPa, a period of time is stablized in pressurize, after the several seconds, the 3-5 second, closes balanced valve P and gathers differential pressure indicator
Delta data, carry out quantitative data detection；
Detection data, after a period of time, after 1 minute, are analyzed by S5, and according to analysis result
Judge that whether qualified bottle 7 to be measured is, and detection data are stored in data base；
S6, opens charge valve P1, opens drain valve P3, closes and measures valve P5, arranges bottle 7 to be measured
Water processes；
S7, after draining completes, departs from screw thread rotation joint 6 with bottle 7 to be measured, prepares to detect next time
Process.
The above is only preferred implementation of the present utility model, it is noted that lead for this technology
For the those of ordinary skill in territory, on the premise of without departing from this utility model principle, it is also possible to if making
Dry improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (4)
1. a liquefied petroleum gas steel cylinder water test unit, it is characterised in that include the standard jar (3) being located in water-filled water tank (4)；The volume of standard jar (3) is less than the volume of bottle to be measured (7)；Water filling for being connected with the screw thread rotation joint (6) of bottle to be measured respectively hold concurrently drain pipe (71), inflation hold concurrently exhaustor (70)；Described inflation exhaustor of holding concurrently connects gas tube (8) and exhaustor (14) respectively by a three way cock, described water filling drain pipe (71) of holding concurrently includes for being connected the first pipeline section with the screw thread rotation joint on bottle to be measured, described first pipeline section connects first four-way connection, described first four-way connection connects second four-way connection by the second pipeline section, the water filling port of described second four-way connection connects water injection pipe (15), one side interface of described first four-way connection connects compression tube (9), another side interface connects the measurement pipeline being connected with standard jar, a balanced valve P in parallel and differential pressure indicator (5) on described measurement pipeline；One side interface of described second four-way connection connects a Pressure gauge (2), and another side interface connects drain pipe (10)；It is equipped with a stop valve on described gas tube, exhaustor, drain pipe, water injection pipe, measurement pipeline and compression tube, including charge valve P1, air bleeding valve P2, drain valve P3, water injection valve P4, measures valve P5, pressurizing valve P6.
Liquefied petroleum gas steel cylinder water test unit the most according to claim 1, it is characterized in that, the stop valve on described measurement pipeline is arranged on one section of measurement pipeline of the side interface of connecting balanced valve P and the parallel pipeline of differential pressure indicator (5) and first four-way connection.
Liquefied petroleum gas steel cylinder water test unit the most according to claim 1 or claim 2, it is characterised in that described Pressure gauge and differential pressure indicator use high-precision pressure sensor and differential pressure pickup.
Liquefied petroleum gas steel cylinder water test unit the most according to claim 1, it is characterised in that described stop valve is pneumatic stopping valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620532699.0U CN205786119U (en) | 2016-06-01 | 2016-06-01 | A kind of liquefied petroleum gas steel cylinder water test unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620532699.0U CN205786119U (en) | 2016-06-01 | 2016-06-01 | A kind of liquefied petroleum gas steel cylinder water test unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205786119U true CN205786119U (en) | 2016-12-07 |
Family
ID=58137069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620532699.0U Withdrawn - After Issue CN205786119U (en) | 2016-06-01 | 2016-06-01 | A kind of liquefied petroleum gas steel cylinder water test unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205786119U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106092754A (en) * | 2016-06-01 | 2016-11-09 | 天津市长龙宏业燃气设备有限公司 | A kind of liquefied petroleum gas steel cylinder water test unit and method |
| CN107024345A (en) * | 2017-04-06 | 2017-08-08 | 北京机械设备研究所 | A kind of experimental method pressed under simulation water |
-
2016
- 2016-06-01 CN CN201620532699.0U patent/CN205786119U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106092754A (en) * | 2016-06-01 | 2016-11-09 | 天津市长龙宏业燃气设备有限公司 | A kind of liquefied petroleum gas steel cylinder water test unit and method |
| CN106092754B (en) * | 2016-06-01 | 2019-01-25 | 天津市长龙宏业燃气设备有限公司 | A kind of liquefied petroleum gas steel cylinder water test unit and method |
| CN107024345A (en) * | 2017-04-06 | 2017-08-08 | 北京机械设备研究所 | A kind of experimental method pressed under simulation water |
| CN107024345B (en) * | 2017-04-06 | 2019-02-01 | 北京机械设备研究所 | A kind of experimental method that simulation is pressed under water |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161207 Effective date of abandoning: 20190125 |
|
| AV01 | Patent right actively abandoned |