CN108980624A - A kind of fuel gas pressure-regulating box cut-out pressure measuring device - Google Patents
A kind of fuel gas pressure-regulating box cut-out pressure measuring device Download PDFInfo
- Publication number
- CN108980624A CN108980624A CN201810909876.6A CN201810909876A CN108980624A CN 108980624 A CN108980624 A CN 108980624A CN 201810909876 A CN201810909876 A CN 201810909876A CN 108980624 A CN108980624 A CN 108980624A
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- CN
- China
- Prior art keywords
- pressure
- valve
- inflator pump
- pressure regulator
- regulating box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a kind of fuel gas pressure-regulating box cut-out pressure measuring devices, including inflator pump, inflator pump is connected with digital pressure gauge by air pipeline, the first check valve and second one-way valve are sequentially installed between inflator pump and digital pressure gauge, inflator pump is connected with pressure regulator by gas pipeline, diffusion valve is installed, pressure regulator one end is equipped with intake valve by gas pipeline, and the pressure regulator other end is equipped with air outlet valve by gas pipeline between pressure regulator and inflator pump；The present invention can rapid and accurate determination pressure regulating box (cabinet) cut-out pressure, have it is easy to use, it is solid, it is low in cost the features such as；The present invention does not need to adjust pressure regulator valve, and tested media is air, and safety and environmental protection effectively reduces pollution caused by combustion gas emptying and waste.
Description
Technical field
The invention belongs to Gas Regulator technical fields, and in particular to a kind of fuel gas pressure-regulating box cut-out pressure measurement dress
It sets.
Background technique
The basic role of pressure regulating box (cabinet) is that the combustion gas of elevated pressures is down to pressure needed for user, keeps stablizing, core
Center portion part is gas pressure regulating valve, and safety guard is pressure regulator stop valve.Reach stop valve when outlet pressure persistently increases
When setting value, valve events are cut off, cut off gas source, stop supplying to pressure regulator, to ensure that downstream user uses safely gas, stop valve
Sensitive is reliably one of the most important functions of pressure regulating box (cabinet), and in daily inspection maintenance, we must often measure pressure regulation
Case (cabinet) cut-out pressure, for safety atmospheric pressure needed for calibrating user, usual measurement method is to close vent ball valve, will be pressed
Power table is connected on the diffusion valve of pressure regulator valve rear end with hose, and adjusting pressure regulator valve makes rear end pressure rise, reads and calibrate cut-out pressure,
Finally restore pressure regulator valve to original and adjusts pressure.But pressure regulating box (cabinet) once puts into operation, rear end pressure can only by adjust pressure regulator valve come
It increases, and in the moment of cutting, air-flow has fluctuation, and pressure gauge reading is inaccurate, simply uses pressure gauge, can not accurately measure and cut
Disconnected pressure combines traditional pressure measuring principle between above situation, proposes to measure pressure regulating box (cabinet) cut-out pressure with the device.
End pressure is lower than pressure regulating box (cabinet) stop valve cut-out pressure of 35KPa after the present invention is suitable for measuring.
Summary of the invention
The object of the present invention is to provide a kind of fuel gas pressure-regulating box cut-out pressure measuring devices, solve and exist in the prior art
Gas pressure regulating box back pressure improve difficult and pressure oscillation and cause stress indeterminable problem.
The technical scheme is that a kind of fuel gas pressure-regulating box cut-out pressure measuring device, including inflator pump, inflator pump are logical
It crosses air pipeline and is connected with digital pressure gauge, the first check valve and the second list are sequentially installed between inflator pump and digital pressure gauge
To valve, inflator pump is connected with pressure regulator by gas pipeline, and diffusion valve, pressure regulator one end are equipped between pressure regulator and inflator pump
Intake valve is installed by gas pipeline, the pressure regulator other end is equipped with air outlet valve by gas pipeline.
Needle valve is equipped between digital pressure gauge and second one-way valve.
Filter is set between intake valve and pressure regulator.
Stop valve is provided on pressure regulator.
The invention has the advantages that the present invention can rapid and accurate determination pressure regulating box (cabinet) cut-out pressure, have it is easy to use,
It is solid, it is low in cost the features such as；The present invention does not need to adjust pressure regulator valve, and tested media is air, and safety and environmental protection effectively subtracts
Pollution and waste caused by few combustion gas emptying；The present invention will cause pressure regulator valve to natural gas a small amount of between outlet valve in measurement
It is mixed with air, has to form the risk of risk mixed gas, it is low between mixed gas pressure small in size, and without heat source and fire
Combustion gas deflagration accident will not occur in actual operation for source.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of fuel gas pressure-regulating box cut-out pressure measuring device of the present invention.
In figure, 1. gas pipelines, 2. inflator pumps, 3. digital pressure gauges, 4. needle valves, 5. check valves, 6. diffusion valves, 7. are adjusted
Depressor, 8. intake valves, 9. air outlet valves, 10. filters, 11. gas pipelines, 12. second one-way valves.
Specific embodiment
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
As shown in Figure 1, the present invention is a kind of fuel gas pressure-regulating box cut-out pressure measuring device, including inflator pump 2, inflator pump 2
It is connected with digital pressure gauge 3 by air pipeline 1, the first check valve 5 is sequentially installed between inflator pump 2 and digital pressure gauge 3
With second one-way valve 12, inflator pump 2 is connected with pressure regulator 7 by gas pipeline 11, is equipped between pressure regulator 7 and inflator pump 2
Diffusion valve 6,7 one end of pressure regulator are equipped with intake valve 8 by gas pipeline 11, and 7 other end of pressure regulator is pacified by gas pipeline 11
Equipped with air outlet valve 9.
Needle valve 4 is equipped between digital pressure gauge 3 and second one-way valve 12.
Filter 10 is set between intake valve 8 and pressure regulator 7.
Stop valve is provided on pressure regulator 7.
Measuring principle of the invention is first shut off pressure regulating box inlet and outlet ball valve, opens the emptying of pressure regulator valve rear end diffusion valve and (adjusts
Pressing case is release mouth, and surge tank is desorption tube), diffusion valve is connect with check valve, is properly filled into gas, checks each connecting portion
Air-tightness；It is slowly inflated with inflator pump, observation digital pressure gauge variation, instantaneous pressure is to cut off pressure when record pressure regulator is cut off
Power；Duplicate measurements is primary, when pressure is close to first time measured value, slowly inflates, and guarantee air-flow as far as possible is steady, in order to avoid because of air-flow
Fluctuation causes error, and instantaneous pressure is cut-out pressure when reading pressure regulator cutting, is subject to second of measured value；Inflator pump is logical
Pull mode is crossed, pipe-line system is drawn air into, gas source is provided for pipeline, gradually rises system pressure, reaches pressure value and cuts
Disconnected pressure set points, cut off pressure regulator valve, the pressure signal of measured medium is simultaneously converted into digital signal, is shown in liquid crystal display
On, it is instantaneous pressure value that it is to read cutting that the present apparatus, which uses high accuracy number pressure gauge,.Check valve makes medium can only be along import
Flowing, can not flow back, and reduce gas crossfire back and forth, reduce airflow fluctuation, so that pressure reading is stablized accurately；After measurement,
Release is trapped in the gas between check valve and pressure gauge.
Beneficial effects of the present invention, the present invention can rapid and accurate determination pressure regulating box (cabinet) cut-out pressure, have easy to use, cut
In fact reliably, the features such as low in cost；The present invention does not need to adjust pressure regulator valve, and tested media is air, and safety and environmental protection effectively reduces
Pollution caused by combustion gas is vented and waste；The present invention measurement when, will cause pressure regulator valve to natural gas a small amount of between outlet valve with
Air mixing, has to form the risk of risk mixed gas, low between mixed gas pressure small in size, and without heat source and fire source,
Combustion gas deflagration accident will not occur in actual operation.
Claims (4)
1. a kind of fuel gas pressure-regulating box cut-out pressure measuring device, which is characterized in that including inflator pump (2), the inflator pump (2) is logical
It crosses air pipeline (1) to be connected with digital pressure gauge (3), it is single that first is sequentially installed between inflator pump (2) and digital pressure gauge (3)
To valve (5) and second one-way valve (12), the inflator pump (2) is connected with pressure regulator (7), the pressure regulation by gas pipeline (11)
It is equipped between device (7) and the inflator pump (2) diffusion valve (6), described pressure regulator (7) one end is installed by gas pipeline (11)
Have intake valve (8), pressure regulator (7) other end is equipped with air outlet valve (9) by gas pipeline (11).
2. a kind of fuel gas pressure-regulating box cut-out pressure measuring device according to claim 1, which is characterized in that the number pressure
Needle valve (4) are equipped between power table (3) and second one-way valve (12).
3. a kind of fuel gas pressure-regulating box cut-out pressure measuring device according to claim 1, which is characterized in that the intake valve
(8) filter (10) are set between pressure regulator (7).
4. a kind of fuel gas pressure-regulating box cut-out pressure measuring device according to claim 1, which is characterized in that the pressure regulator
(7) stop valve is provided on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810909876.6A CN108980624A (en) | 2018-08-10 | 2018-08-10 | A kind of fuel gas pressure-regulating box cut-out pressure measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810909876.6A CN108980624A (en) | 2018-08-10 | 2018-08-10 | A kind of fuel gas pressure-regulating box cut-out pressure measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108980624A true CN108980624A (en) | 2018-12-11 |
Family
ID=64552645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810909876.6A Pending CN108980624A (en) | 2018-08-10 | 2018-08-10 | A kind of fuel gas pressure-regulating box cut-out pressure measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108980624A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109870363A (en) * | 2019-01-30 | 2019-06-11 | 重庆瑞力比燃气设备有限责任公司 | A kind of pressure-measuring method and pressure testing system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005337419A (en) * | 2004-05-28 | 2005-12-08 | Toyota Motor Corp | High-pressure gas supplying device |
| CN200999969Y (en) * | 2007-02-08 | 2008-01-02 | 张永亮 | Pipeline pressure regulating apparatus |
| CN203224325U (en) * | 2013-03-19 | 2013-10-02 | 洛阳新奥华油燃气有限公司 | A pressure tester of a fuel gas pressure regulating box |
| CN203892880U (en) * | 2014-05-09 | 2014-10-22 | 成都伦慈仪表有限公司 | Small-flow gas pressure regulating and measuring system |
| CN206192642U (en) * | 2016-10-31 | 2017-05-24 | 广州新奥燃气有限公司 | Pressure regulating box is with cutting off pressure test device |
-
2018
- 2018-08-10 CN CN201810909876.6A patent/CN108980624A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005337419A (en) * | 2004-05-28 | 2005-12-08 | Toyota Motor Corp | High-pressure gas supplying device |
| CN200999969Y (en) * | 2007-02-08 | 2008-01-02 | 张永亮 | Pipeline pressure regulating apparatus |
| CN203224325U (en) * | 2013-03-19 | 2013-10-02 | 洛阳新奥华油燃气有限公司 | A pressure tester of a fuel gas pressure regulating box |
| CN203892880U (en) * | 2014-05-09 | 2014-10-22 | 成都伦慈仪表有限公司 | Small-flow gas pressure regulating and measuring system |
| CN206192642U (en) * | 2016-10-31 | 2017-05-24 | 广州新奥燃气有限公司 | Pressure regulating box is with cutting off pressure test device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109870363A (en) * | 2019-01-30 | 2019-06-11 | 重庆瑞力比燃气设备有限责任公司 | A kind of pressure-measuring method and pressure testing system |
| CN109870363B (en) * | 2019-01-30 | 2021-10-29 | 重庆瑞力比燃气设备股份有限公司 | Pressure testing method and system |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181211 |