CN2120237U - Emergency oil breakaway valve manostat for liquified gas station - Google Patents
Emergency oil breakaway valve manostat for liquified gas station Download PDFInfo
- Publication number
- CN2120237U CN2120237U CN 92213415 CN92213415U CN2120237U CN 2120237 U CN2120237 U CN 2120237U CN 92213415 CN92213415 CN 92213415 CN 92213415 U CN92213415 U CN 92213415U CN 2120237 U CN2120237 U CN 2120237U
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- oil
- housing
- voltage stabilizer
- spring
- oil circuit
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Abstract
The utility model discloses the oil system stabilizer of an emergency breakaway valve for a hand-operated oil pump to supply oil at an LPG storing and allocating station, comprising a shell, a hydraulic ram arranged on one inner side of the shell, a spring arranged in the case and contacted with the hydraulic ram with one end and a pressure regulating device arranged in the other side of the shell and contacted with the other end of the spring. The hydraulic ram is provided with an oil hole. One end of the oil hole is directly communicated with an oil storage cavity in the hydraulic ram. The other end of the oil hole is connected with the oil pipe of an external oil passage. When the pressure is exceeded a limit, the utility model absorbs the expanded oil. When the pressure is low, the oil pressure is compensated. The oil system stabilizer not only can ensure the safe running of the oil system and reduce operations, but also can protect the emergency breakaway valve form being damaged and reduce the maintenance works.
Description
The utility model belongs to the stable-pressure device in the Emergeny Cutoff Valves oil-way system of liquefied petroleum gas (LPG) storage and distribution station Manual Oil Pumps Valves fuel feeding.
In China, the gas phase and the liquid phase mouth of pipe of liquefied petroleum gas (LPG) storage and distribution station basin all are equiped with Emergeny Cutoff Valves.This valve is controlled by pressurized oil system, the Manual Oil Pumps Valves fuel feeding, and valve open when oil pressure reaches 2.5MPa when emergency episode takes place, is opened the scavenger valve oil return step-down on the Manual Oil Pumps Valves, and Emergeny Cutoff Valves cuts out rapidly, plays the safety protection effect.But since oil pump and oil circuit distribution system be located at apart from basin have certain safe distance place (reaching about 100M farthest), especially in summer, because after elongated oil pipe was tanned by the sun by the sun, the very fast rising of oily temperature caused oil volume expansion in the pipe, oil pressure sharply rises, surpass system design temperature 4.0MPa, reach as high as more than the 10MPa, cause present ubiquitous oil leakage phenomenon, even cause that oil pipe explosion, gauge hand are bended etc.When temperature descended, the oil temperature in the oil pipe descended, volume shrinkage, and pressure descends, and the Emergeny Cutoff Valves that be in the working state this moment can cut out voluntarily, and work is interrupted.Above-mentioned phenomenon is the common fault that present domestic liquefied petroleum gas (LPG) storage and distribution station Emergeny Cutoff Valves exists, and does not solve so far, and the liquid gas station that for this reason has is simply removed this valve, obviously does not meeting safety control and requirement of safe production like this.
The purpose of this utility model provides that Emergeny Cutoff Valves oil-way system in a kind of liquefied petroleum gas (LPG) storage and distribution station Manual Oil Pumps Valves fuel feeding prevents superpressure, the oil circuit stable-pressure device of compensation when under-voltage.
For achieving the above object, the technical solution that the utility model adopts is: this voltage stabilizer is by a housing, place the hydraulic jack of a side in the housing, place the spring in the housing, be connected the housing opposite side and form with the pressure regulator of spring one end in contact, described hydraulic jack comprises a piston and a cylinder body that is enclosed within on the piston, wherein parts are fixed component and are fixed on the housing, another parts are movable part and contact with the spring the other end, offer an oilhole on the fixed component, oilhole one end directly leads to the shoe cream room in the hydraulic jack, and the oilhole the other end is connected with the oil pipe of extraneous oil circuit.
Described fixed component can be piston, and movable part can be cylinder body.
Described fixed component also can be cylinder body, and movable part also can be piston.
Described pressure regulator is made up of spring seat and adjusting screw rod, and adjusting screw rod is screwed in the tapped through hole on the housing, and the end that adjusting screw rod is screwed in the housing is pressed on the spring seat, and the another side of spring seat is close to spring one end.
Described hydraulic jack also comprises at least one seal ring, and piston cooperates by seal ring with cylinder body.
During work, because Manual Oil Pumps Valves in the process of system's pressurization, has the shoe cream room that the part oil measure is gone into voltage stabilizer, when causing that because of temperature oil pressure descends, the oil in the shoe cream room adds to system oil-way automatically by spring action; When causing that because of temperature oil pressure rises, the movable part in the hydraulic jack promotes spring and produces displacement, makes the oil of demi-inflation inject the shoe cream room of voltage stabilizer, thereby reaches the purpose of voltage stabilizing.Adjust pressure regulator, can make the oil pressure in the oil-way system controlled within the specific limits.
Owing to adopt hydraulic jack store oil energy in the above-mentioned solution, adjust, control oil pressure with pressure regulator and spring, make to the utlity model has following advantage:
＜1 〉. when oily temperature rise, pressure rising, voltage stabilizer can absorb, store the oil energy that expands, and the oil pressure that limits simultaneously in the oil-way system rises.
＜2 〉. owing to use Manual Oil Pumps Valves in the process of system's pressurization, existing part oil measure is gone in the voltage stabilizer, therefore the oil in the oil circuit slightly shrinks oil pressure decline when temperature descends, oil in the voltage stabilizer can replenish from the trend system oil-way at this moment, make the unlikely decline of system oil pressure too many, the phenomenon that can avoid Emergeny Cutoff Valves to close voluntarily takes place.
＜3 〉. can adjust pressure regulator according to temperature and changes of seasons, make the oil pressure in the oil-way system controlled within the specific limits.
Below in conjunction with drawings and Examples the utility model is further described:
Accompanying drawing 1 is the structural drawing of voltage stabilizer;
Accompanying drawing 2 is the structural representation of voltage stabilizer;
Accompanying drawing 3 is an Emergeny Cutoff Valves oil-way system schematic flow sheet.
Wherein: 1. base; 2. oil pipe; 3. cylindrical shell lower flange; 4. cushion pad; 5. oil cylinder lower cover; 6. piston; 7. cylinder barrel; 8. oil cylinder loam cake; 9. cylindrical shell; 10. spring; 11. spring seat; 12. cylindrical shell upper flange; 13. cylinder cover; 14. locking nut; 15. adjusting screw rod; " 16. Yx " shape seal ring; 17. scale; 18. pointer; 19. bolt; 20. packing ring; 21. nut; 22. copper packing; 23. piston anti-rotating bolt; 24. oil connection; 25. bolt; 26. packing ring; 27. nut; 28. shoe cream room; 29. cylinder body; 30. housing; " 31. O " shape seal ring; 32. basin; 33. basin; 34. valve; 35. valve; 36. valve; 37. valve; 38. Emergeny Cutoff Valves; 39. Emergeny Cutoff Valves; 40. Emergeny Cutoff Valves; 41. Emergeny Cutoff Valves; 42. Manual Oil Pumps Valves; 43. voltage stabilizer; 44. valve; 45. valve; 46. system's fuel outlet valve.
By Fig. 1, shown in 2, liquefied gas station Emergeny Cutoff Valves oil circuit voltage stabilizer is by a housing 30, place the hydraulic jack of a side in the housing 30, place the spring 10 in the housing 30, be connected housing 30 opposite sides and form with the pressure regulator of spring 10 1 end in contact, described housing 30 is by cylindrical shell 9, be welded on the cylindrical shell upper flange 12 of cylindrical shell 9 one ends, be welded on the cylindrical shell lower flange 3 of cylindrical shell 9 the other ends, cylinder cover 13 and base 1 are formed, cylinder cover 13 is by bolt 25, packing ring 26, nut 27 is fixed on the cylindrical shell upper flange 12, base 1 is by bolt 19, packing ring 20, nut 21 is fixed on the cylindrical shell lower flange 3, has several mounting holes on the base 1; Described hydraulic jack comprises a piston 6, be enclosed within the cylinder body 29 on the piston 6, two " Yx " shape seal rings 16 and two " O " shape seal rings 31, piston 6 and cylinder body 29 cooperate by two " Yx " shape seal rings 16 of front end and two " O " shape seal rings 31 of rear end, cylinder body 29 as movable part by cylinder barrel 7, the oil cylinder loam cake 8 that is fixed on cylinder barrel 7 front ends is formed with the oil cylinder lower cover 5 that is fixed on cylinder barrel 7 rear ends, oil cylinder lower cover 5 central authorities open a round tube hole, piston 6 tail ends stretch out from round tube hole, it is outer and contact cylinder barrel 7 afterbodys with end face that oil cylinder lower cover 5 stretches out that spring 10 is enclosed within cylinder body 29, offer three gas buffer damping small through hole equably along the circumference wall between " Yx " shape seal ring 16 and " O " shape seal ring 31; Piston 6 is enclosed within the through hole that cushion pad 4 central authorities offer as the fixed component afterbody, piston 6 afterbodys are opened a tapped hole along the direction of vertical axis, piston anti-rotating bolt 23 passes cylindrical shell lower flange 3 and is screwed in this tapped hole, in case piston 6 rotates, cushion pad 4 is placed on cylindrical shell 9 inner port and the face end leans against on the base 1, piston 6 tail ends contact with base 1 by copper packing 22, offer an oilhole on the piston 6, oilhole one end directly leads to the shoe cream room 28 in the hydraulic jack, and the oilhole the other end is connected by oil connection 24 with the oil pipe 2 of extraneous oil circuit; Described pressure regulator is made up of spring seat 11, adjusting screw rod 15 and locking nut 14, adjusting screw rod 15 is screwed in the tapped through hole on the housing 30, adjusting screw rod 15 is exposed at housing 30 outer ends and twists a locking nut 14, the end that adjusting screw rod 15 is screwed in the housing 30 is pressed on the spring seat 11, and the another side of spring seat 11 is close to spring 10 1 ends; Open a long through-hole along cylindrical shell 9 axial directions on the wall of cylindrical shell 9, be close at long through-hole, fix a scale 17, pointer 18 is fixed on the interior cylinder body 29 of long through-hole.
During work, because Manual Oil Pumps Valves is in the process of system's pressurization, oilhole in existing part oil process oil pipe 2, oil connection 24, the piston 6 is store the shoe cream room 28 in the voltage stabilizer, when temperature causes that oil pressure descends, oil in the shoe cream room 28 adds in the system oil-way and goes through oilhole, oil connection 24, the oil pipe 2 of piston 6 automatically under the pressure effect of spring 10, avoided in working order, Emergeny Cutoff Valves cuts out voluntarily, the phenomenon of interruption of work; When temperature caused that oil pressure rises, the oilhole of the oil that expands in the oil-way system on oil pipe 2, oil connection 24, piston 6 injected the shoe cream room 28 of voltage stabilizer, thereby reached the purpose that absorbs the oil energy that expands; Adjusting screw rod 15 in the rotation pressure controlling device, the size of the precompression of adjustable springs 10 makes the oil pressure in the oil-way system controlled within the specific limits, tightens locking nut 14 after mixing up.
By shown in Figure 3, the Emergeny Cutoff Valves 38 and the Emergeny Cutoff Valves 39 of valve 34 and valve 35 control basins 32, the Emergeny Cutoff Valves 40 and the Emergeny Cutoff Valves 41 of valve 36 and valve 37 control basins 33, Manual Oil Pumps Valves 42 is made up of fuel tank, the pump housing and scavenger valve, Manual Oil Pumps Valves 42 is connected with oil-way system by valve 45, voltage stabilizer 43 is connected with oil-way system by valve 44, and system's fuel outlet valve 46 is connected on the oil-way system.When oil-way system was not worked, the scavenger valve of valve 34, valve 36, Emergeny Cutoff Valves 38, Emergeny Cutoff Valves 39, Emergeny Cutoff Valves 40, Emergeny Cutoff Valves 41 and Manual Oil Pumps Valves 42 was normally closed; Valve 35, valve 37, valve 44 and valve 45 often leave.Open the Emergeny Cutoff Valves 38 and the Emergeny Cutoff Valves 39 of basin 32 as need, at first open valve 34, cut-off valve 35 is forced into 2.5～2.7MPa with Manual Oil Pumps Valves 42 then, pressure oil entered and opened Emergeny Cutoff Valves 38 and Emergeny Cutoff Valves 39 through valve 45 and valve 34 this moment, last cut-off valve 45.Close Emergeny Cutoff Valves 38 and Emergeny Cutoff Valves 39 as need, then open valve 45, open the scavenger valve on the Manual Oil Pumps Valves 42 then, just intrasystem pressure oil is back to fuel tank, Emergeny Cutoff Valves 38 and Emergeny Cutoff Valves 39 are closed because of release.The operating procedure of basin 33 is analogized.
Claims (7)
1, a kind of liquefied gas station Emergeny Cutoff Valves oil circuit voltage stabilizer, it is characterized in that: this voltage stabilizer is by a housing 30, place the hydraulic jack of a side in the housing 30, place the spring 10 in the housing 30, be connected housing 30 opposite sides and form with the pressure regulator of spring 10 1 end in contact, described hydraulic jack comprises a piston 6 and a cylinder body 29 that is enclosed within on the piston 6, wherein parts are fixed component and are fixed on the housing 30, another parts are movable part and contact with spring 10 the other ends, offer an oilhole on the fixed component, oilhole one end directly leads to the shoe cream room 28 in the hydraulic jack, and the oilhole the other end is connected with the oil pipe 2 of extraneous oil circuit.
2, oil circuit voltage stabilizer according to claim 1 is characterized in that: described fixed component is a piston 6, and movable part is a cylinder body 29.
3, oil circuit voltage stabilizer according to claim 1 is characterized in that: described fixed component is a cylinder body 29, and movable part is a piston 6.
4, oil circuit voltage stabilizer according to claim 1, it is characterized in that: described pressure regulator is made up of spring seat 11 and adjusting screw rod 15, adjusting screw rod 15 is screwed in the tapped through hole on the housing 30, the end that adjusting screw rod 15 is screwed in the housing 30 is pressed on the spring seat 11, and the another side of spring seat 11 is close to spring 10 1 ends.
5, oil circuit voltage stabilizer according to claim 1, it is characterized in that: described hydraulic jack also comprises at least one seal ring, piston 6 and cylinder body 29 cooperate by seal ring.
6, oil circuit voltage stabilizer according to claim 1 is characterized in that: open a gas buffer damping through hole at least on cylinder body 29 afterbody circumference walls.
7, oil circuit voltage stabilizer according to claim 1, it is characterized in that: on the wall of housing 30, open a long through-hole along movable part moving direction, long through-hole in housing 30 outer wall is close to, and fixes a scale 17, and pointer 18 is fixed on the interior movable part of long through-hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92213415 CN2120237U (en) | 1992-03-11 | 1992-03-11 | Emergency oil breakaway valve manostat for liquified gas station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92213415 CN2120237U (en) | 1992-03-11 | 1992-03-11 | Emergency oil breakaway valve manostat for liquified gas station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2120237U true CN2120237U (en) | 1992-10-28 |
Family
ID=4958142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92213415 Granted CN2120237U (en) | 1992-03-11 | 1992-03-11 | Emergency oil breakaway valve manostat for liquified gas station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2120237U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100389370C (en) * | 2000-01-13 | 2008-05-21 | 美蓓亚株式会社 | Reduced length pressure compensating liquid flow regulator |
-
1992
- 1992-03-11 CN CN 92213415 patent/CN2120237U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100389370C (en) * | 2000-01-13 | 2008-05-21 | 美蓓亚株式会社 | Reduced length pressure compensating liquid flow regulator |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |