CN102305349A - High-pressure natural gas unloading device with self-locking function - Google Patents
High-pressure natural gas unloading device with self-locking function Download PDFInfo
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- CN102305349A CN102305349A CN201110273764A CN201110273764A CN102305349A CN 102305349 A CN102305349 A CN 102305349A CN 201110273764 A CN201110273764 A CN 201110273764A CN 201110273764 A CN201110273764 A CN 201110273764A CN 102305349 A CN102305349 A CN 102305349A
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Abstract
The invention discloses a high-pressure natural gas unloading device with a self-locking function. The device comprises a gas unloading hose, a high-pressure gas-inlet pipe, a high-pressure gas-outlet pipe, a low-pressure gas-outlet pipe, a high-pressure control valve and a low-pressure control valve, wherein the two control valves of the high-pressure gas-outlet pipe and the low-pressure gas-outlet pipe are respectively provided with a high-pressure valve self-locking disc and a low-pressure valve self-locking disc, the two self-locking discs both are circular steel plates, and the edges of the two self-locking discs are respectively provided with a circular arc gap; the centre of the self-locking disc is provided with a square hole, and the square hole and a valve rod of the control valve are fixed together; the radial directions of the circular arc gaps of the two self-locking discs are mutually perpendicular; and when the valve rod of the control valve rod rotates, the circular arc gap of one self-locking disc is in sliding fit with the circular arc gap of the other self-locking disc. The device disclosed by the invention has the advantages that the device is simple in structure, low in cost, and safe and reliable in operation; and by using the device, the occurrence of an accident possibly caused by the misoperation of a high-pressure natural gas unloading column is avoided, therefore, the device is specially suitable to be used in large-flow natural gas pressure reducing stations such as large-scale gas corporations and urban retail stations and industrial parks with a gas application amount of more than five thousands cube per hour.
Description
(1) technical field
The present invention relates to rock gas station high pressure discharge column application apparatus, particularly a kind of high-pressure natural gas with auto-lock function unloads device of air.
(2) background technique
Big flow Natural gas letdown station such as China's gas company, urban gate station and industrial park is equipped with high-pressure natural gas and unloads device of air at present.High-pressure natural gas unloads device of air and is typically provided with a rock gas import and two gas outlets, and two gas outlets are respectively a high-pressure natural gas outlet and a low pressure natural gas outlet.When unloading the device of air import when being high-pressure natural gas, need the high-pressure outlet valve open, the low tension outlet valve is a closed condition; If this moment; Because of operate miss the low tension outlet valve open, will cause serious destruction to the upstream device of low tension outlet, often become the hidden danger of safety in production.
(3) summary of the invention
The objective of the invention is provides a kind of high-pressure natural gas with auto-lock function to unload device of air to above-mentioned existing problems, and this apparatus structure is simple, cost is low, safe and reliable to operation, the possibility of having removed the operate miss of high-pressure natural gas discharge column from.
Technological scheme of the present invention:
A kind of high-pressure natural gas with auto-lock function unloads device of air; Comprise and unload gas flexible pipe, high-pressure pipe, high pressure steam outlet pipe and low pressure steam outlet pipe; Unloading gas flexible pipe and high-pressure pipe is tightly connected; High-pressure pipe is provided with pressure gauge, and high pressure steam outlet pipe and low pressure steam outlet pipe are connected in parallel and are respectively equipped with high pressure control valve and low-pressure control valve, it is characterized in that: with two control valves of high pressure steam outlet pipe and low pressure steam outlet pipe secured in parallel and high pressure steam outlet pipe and low pressure steam outlet pipe be arranged on high pressure steam outlet pipe same the rectilinear direction vertical with low pressure steam outlet pipe parallel direction on; On two control valves of high pressure steam outlet pipe and low pressure steam outlet pipe, install respectively high pressure valve from lock collar and low pressure valve from lock collar; Two identical from the lock collar structure, is circular steel plate, on circular edges of plate, is provided with arc gap; The diameter of breach circular arc is identical with the diameter of circular steel plate; The arc gap mid point is identical with the distance of two control valve valve rods with the radius sum of circular steel plate to the radial distance in the circular steel plate center of circle, and two centers from lock collar are respectively equipped with the square hole with the square part coupling of control valve valve rod, and two squares that are enclosed within valve rod respectively from lock collar partly upward and through Stem Mut are fixed; The radial direction from the lock collar arc gap after fixing is consistent with the opening direction of control valve; Two radial direction from the lock collar arc gap are orthogonal, and when the control valve valve rod rotated, one was slidingly matched from the formation of lock collar cylindrical circular arc from lock collar breach circular arc and another.
Working procedure of the present invention:
This high-pressure natural gas unloads device of air and is connected with the sled car through the quick inserting joint that unloads the gas flexible pipe; Open the cylinder valve on the sled car one by one; When the pressure duct control valve is opened; Low pressure valve just in time is stuck in high pressure valve on the external arc of lock collar from the arc gap on the lock collar, and the low pressure line valve was closed condition and formed self-locking this moment; When the pressure duct control valve was closed, two revolved respectively from lock collar and to turn 90 degrees, and high pressure valve just in time is stuck in low pressure valve on the external arc of lock collar from the arc gap on the lock collar, and the pressure duct valve was closed condition and formed self-locking this moment.
Advantage of the present invention is: this apparatus structure is simple, cost is low, safe and reliable to operation; Avoided the accident that possibly cause because of the operate miss of high-pressure natural gas discharge column, the door station and the gas consumption that are specially adapted to big flow Natural gas letdown station such as large-scale gas company, city are in the per hour uses such as industrial park more than 5,000 cubes.
(4) description of drawings
Accompanying drawing is that the high-pressure natural gas with auto-lock function unloads the device of air schematic representation.
Among the figure: 1. unload gas flexible pipe 2. high-pressure pipes 3. high pressure steam outlet pipes 4. low pressure steam outlet pipes 5. pressure gauges 6. high pressure control valves 7. low-pressure control valves 8. high pressure valves from lock collar 9. low pressure valves from lock collar
(5) embodiment
Embodiment:
A kind of high-pressure natural gas with auto-lock function unloads device of air; Comprise and unload gas flexible pipe 1, high-pressure pipe 2, high pressure steam outlet pipe 3 and low pressure steam outlet pipe 4; Unloading gas flexible pipe 1 is tightly connected with high-pressure pipe 2; High-pressure pipe 2 is provided with pressure gauge 5; High pressure steam outlet pipe 3 is connected in parallel with low pressure steam outlet pipe 4 and is respectively equipped with high pressure control valve 6 and low-pressure control valve 7; It is characterized in that: with two control valves 6,7 of high pressure steam outlet pipe 3 and low pressure steam outlet pipe 4 secured in parallel and high pressure steam outlet pipe 3 and low pressure steam outlet pipe 4 be arranged on high pressure steam outlet pipe 3 same the rectilinear direction vertical with low pressure steam outlet pipe 4 parallel directions on, it is identical from lock collar 8,9 structures from 9, two of lock collars from lock collar 8 and low pressure valve on two control valves 6,7 of high pressure steam outlet pipe 3 and low pressure steam outlet pipe 4, high pressure valve to be installed respectively; Be circular steel plate; On circular edges of plate, be provided with arc gap, the diameter of breach circular arc is identical with the diameter of circular steel plate, and the arc gap mid point is identical to the distance of the radius sum of the radial distance in the circular steel plate center of circle and circular steel plate and two control valve 6,7 valve rods; Two centers from lock collar 8,9 are respectively equipped with the square hole that matees with the square part of control valve 6,7 valve rods; Two square parts that are enclosed within valve rod respectively from lock collar 8,9 go up and fix through Stem Mut, and the radial direction from lock collar 8,9 arc gaps after fixing is consistent with the opening direction of control valve, and two radial direction from lock collar 8,9 arc gaps are orthogonal; When control valve 6,7 valve rods rotated, one was slidingly matched from the formation of lock collar 9 cylindrical circular arcs from lock collar 8 breach circular arcs and another.
Among this embodiment; The diameter of two circular steel plate self-locking dishes is that 200 millimeters, thickness are 5 millimeters; The diameter of breach circular arc also is 200 millimeters; The arc gap mid point is 50 millimeters to the radial distance in the circular steel plate center of circle, and the distance of two control valve valve rods is 150 millimeters, and the square hole of two self-locking disk center is 15 * 15 millimeters so that be complementary with the valve rod of selecting for use valve; The model of high pressure control valve and low-pressure control valve is ANSI B1.20.1 NPT, and Italian STAUFF produces; Unloading the gas flexible pipe, to adopt U.S. PARKER production, model be SER ES 1 " product; Pressure gauge is domestic Kodak Y100-40MPA product; Connecting pipeline is a Stainless Steel Tube, and diameter is that 34 millimeters, wall thickness are 4 millimeters.High-pressure pipe, high pressure steam outlet pipe, low pressure steam outlet pipe, high pressure control valve and low-pressure control valve that this high-pressure natural gas unloads device of air all are fixed on and all are fixed on the channel-section steel frame.
Practical application proves: it is reliable fully that this high-pressure natural gas unloads the auto-lock function of device of air, and using effect is good.
Claims (1)
1. the high-pressure natural gas with auto-lock function unloads device of air; Comprise and unload gas flexible pipe, high-pressure pipe, high pressure steam outlet pipe and low pressure steam outlet pipe; Unloading gas flexible pipe and high-pressure pipe is tightly connected; High-pressure pipe is provided with pressure gauge, and high pressure steam outlet pipe and low pressure steam outlet pipe are connected in parallel and are respectively equipped with high pressure control valve and low-pressure control valve, it is characterized in that: with two control valves of high pressure steam outlet pipe and low pressure steam outlet pipe secured in parallel and high pressure steam outlet pipe and low pressure steam outlet pipe be arranged on high pressure steam outlet pipe same the rectilinear direction vertical with low pressure steam outlet pipe parallel direction on; On two control valves of high pressure steam outlet pipe and low pressure steam outlet pipe, install respectively high pressure valve from lock collar and low pressure valve from lock collar; Two identical from the lock collar structure, is circular steel plate, on circular edges of plate, is provided with arc gap; The diameter of breach circular arc is identical with the diameter of circular steel plate; The arc gap mid point is identical with the distance of two control valve valve rods with the radius sum of circular steel plate to the radial distance in the circular steel plate center of circle, and two centers from lock collar are respectively equipped with the square hole with the square part coupling of control valve valve rod, and two squares that are enclosed within valve rod respectively from lock collar partly upward and through Stem Mut are fixed; The radial direction from the lock collar arc gap after fixing is consistent with the opening direction of control valve; Two radial direction from the lock collar arc gap are orthogonal, and when the control valve valve rod rotated, one was slidingly matched from the formation of lock collar cylindrical circular arc from lock collar breach circular arc and another.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110273764 CN102305349B (en) | 2011-09-16 | 2011-09-16 | High-pressure natural gas unloading device with self-locking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110273764 CN102305349B (en) | 2011-09-16 | 2011-09-16 | High-pressure natural gas unloading device with self-locking function |
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| Publication Number | Publication Date |
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| CN102305349A true CN102305349A (en) | 2012-01-04 |
| CN102305349B CN102305349B (en) | 2013-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110273764 Expired - Fee Related CN102305349B (en) | 2011-09-16 | 2011-09-16 | High-pressure natural gas unloading device with self-locking function |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0255003A2 (en) * | 1986-07-18 | 1988-02-03 | Fujitsu Limited | Automatic gas distributing device, for supplying a pipe with gas from an alternative gas source, controlled by the direct application of high gas pressure of the source |
| US5391209A (en) * | 1990-06-15 | 1995-02-21 | Leidy Hub, Inc. | Method for controlling overpressurization in a gas line |
| CN2467870Y (en) * | 2001-03-14 | 2001-12-26 | 史洲 | Self-locking seal for liquefied gas cylinder |
| CN2593029Y (en) * | 2002-12-10 | 2003-12-17 | 北京晨光维中能源技术有限责任公司 | High-pressure gas multiple-pressure stepped output apparatus |
| JP2005240863A (en) * | 2004-02-25 | 2005-09-08 | Jfe Engineering Kk | High pressure gas decompression facilities |
| CN202252842U (en) * | 2011-09-16 | 2012-05-30 | 天津华迈燃气装备股份有限公司 | High-pressure natural gas discharging device with self-locking function |
-
2011
- 2011-09-16 CN CN 201110273764 patent/CN102305349B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0255003A2 (en) * | 1986-07-18 | 1988-02-03 | Fujitsu Limited | Automatic gas distributing device, for supplying a pipe with gas from an alternative gas source, controlled by the direct application of high gas pressure of the source |
| US5391209A (en) * | 1990-06-15 | 1995-02-21 | Leidy Hub, Inc. | Method for controlling overpressurization in a gas line |
| CN2467870Y (en) * | 2001-03-14 | 2001-12-26 | 史洲 | Self-locking seal for liquefied gas cylinder |
| CN2593029Y (en) * | 2002-12-10 | 2003-12-17 | 北京晨光维中能源技术有限责任公司 | High-pressure gas multiple-pressure stepped output apparatus |
| JP2005240863A (en) * | 2004-02-25 | 2005-09-08 | Jfe Engineering Kk | High pressure gas decompression facilities |
| CN202252842U (en) * | 2011-09-16 | 2012-05-30 | 天津华迈燃气装备股份有限公司 | High-pressure natural gas discharging device with self-locking function |
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| CN102305349B (en) | 2013-01-09 |
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