CN2160752Y - Normally closed switch impact firing device - Google Patents
Normally closed switch impact firing device Download PDFInfo
- Publication number
- CN2160752Y CN2160752Y CN 93206433 CN93206433U CN2160752Y CN 2160752 Y CN2160752 Y CN 2160752Y CN 93206433 CN93206433 CN 93206433 CN 93206433 U CN93206433 U CN 93206433U CN 2160752 Y CN2160752 Y CN 2160752Y
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- normally closed
- utility
- model
- piston rod
- piston
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- Expired - Fee Related
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Abstract
The utility model relates to a normally closed switch impact firing device of high energy gas fracture used on oil gas wells, and the utility model is composed of an impact rod, an outer casing, a piston rod, a piston and casing body. The utility model is characterized in that the lower part of the piston rod is connected with an upper contact, and a tower type spring is fixed to a wiring terminal, which forms a lower contact. The device can realize multi-point ignition and supply the electric power continuously by starting a pressure-time (p-t) monitor simultaneously. The utility model has the advantages of high safety, simple structure, convenient operation, low cost, etc.
Description
The utility model relates to a kind of oil gas well high-energy gas pressure break (being called for short HEGF) oil pipe and carries the igniter of gas generator, promptly a kind of normally closed type switch bump electric initiation device.
The multi-point spark of gas generator when this apparatus to cause bursting is applicable to the oil gas well high-energy gas pressure break starts down-hole memory type pressure-time (p-t) monitor simultaneously and gives its continued power.
Existing percussion primer is excellent percussion piston bar of a kind of bump and striker, the fire in a stove before fuel is added ignites, directly light the device of gunpowder by starting mix or detonating fuse, mainly be applicable to perforating oil gas well, be used for the oil gas well high-energy gas pressure break, its weak point is to realize multi-point spark, and can not mate with the P-t monitor.
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art part, a kind of needs that can satisfy high enegry gas fracturing gas generator multi-point spark are provided, can have started the P-t monitor again and give its normally closed type switch bump electric initiation device of power supply continuously.
The purpose of this utility model may reach by following measure: this initiator cuts off the metal bearing pin that is fixed in the piston bush for piston rod one active force by the bump rod, make piston rod and upper contact descending, contact with the scalability lower contact and compress lower contact, two leads that lead to the P-t monitor are connected forever, realize multi-point spark, start the P-t monitor simultaneously and give its continued power.It is 340~440MPa metal material that the bearing pin of this device adopts shear strength, and the scalability lower contact adopts and becomes rigidity tower spring, and upper contact and prap all adopt bakelite to insulate with piston bush and housing respectively.
Accompanying drawing is the assembling drawing of high enegry gas fracturing normally closed type switch percussion primer
Below in conjunction with accompanying drawing structure of the present utility model and enforcement are further described:
This device is given the suitable active force of piston rod [ 3 ] by bump rod [ 1 ] by drawing oblique [ 2 ], cut off the metal bearing pin [ 5 ] that is fixed on the piston [ 4 ], make piston rod [ 3 ] and upper contact [ 6 ] descending together, contact with scalability lower contact [ 7 ] and compress lower contact [ 7 ], make two leads [ 9 ] and [ 11 ] conducting forever of leading to P-t monitor (not drawing among the figure), realize multi-point spark, make P-t monitor (not drawing among the figure) startup work simultaneously.Because bump rod [ 1 ] and action of gravity can make upper contact [ 6 ] forever contact with lower contact [ 7 ], i.e. lead [ 9 ] and [ 11 ] conducting forever, the purpose that realizes giving P-t monitor (not drawing among the figure) continued power.Upper contact [ 6 ] and prap [ 8 ] are used bakelite [ 13 ] and [ 12 ] and piston bush [ 4 ] and metal shell [ 10 ] insulation respectively.The shear strength of metal bearing pin [ 5 ] is 340~440MPa.Scalability lower contact [ 7 ] adopts change rigidity turriform spring and is fixed on the prap [ 8 ].The effect of clearance hole on two [ 14 ] is to prevent that the interior dirt of oil pipe (not drawing among the figure), sand etc. from accumulating in the top of piston rod [ 3 ], the reliability of influence bump.
That the utility model compared with prior art has is safe and reliable, simple in structure, easy to operate, cost is low, can realize multi-point spark, can give again the advantages such as P-t monitor continued power.
Claims (3)
1, a kind of oil gas well high-energy gas pressure break normally closed switch impact initiation apparatus of forming by trip rod (1), shell (2), piston rod (3), piston bush (4) and housing (10), the bottom that it is characterized in that piston rod (3) connects a upper contact (6), tower spring (7) is fixed on the prap (8), forms lower contact.
2, normally closed type switch initiator device according to claim 1 is characterized in that upper contact (6) and prap (8) adopt isolator (13), (12) to insulate with piston bush (4) and housing (10) respectively.
3, normally closed type switch initiator device according to claim 1 and 2 is characterized in that lead (9) links to each other with prap (8) with upper contact (6) with (11) one ends, and (p-t) monitor of same pressure-time of the other end joins.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 93206433 CN2160752Y (en) | 1993-03-16 | 1993-03-16 | Normally closed switch impact firing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 93206433 CN2160752Y (en) | 1993-03-16 | 1993-03-16 | Normally closed switch impact firing device |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2160752Y true CN2160752Y (en) | 1994-04-06 |
Family
ID=33789443
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 93206433 Expired - Fee Related CN2160752Y (en) | 1993-03-16 | 1993-03-16 | Normally closed switch impact firing device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN2160752Y (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1062658C (en) * | 1996-02-29 | 2001-02-28 | 胜利石油管理局测井公司 | Multi-stage self controlling safety exploder |
CN103089202A (en) * | 2012-12-28 | 2013-05-08 | 西安通源石油科技股份有限公司 | Tension bar type pressure exploder |
CN117514104A (en) * | 2023-12-15 | 2024-02-06 | 中国矿业大学 | Mechanical impact type piezoelectric circulating ignition device for methane in-situ explosion |
-
1993
- 1993-03-16 CN CN 93206433 patent/CN2160752Y/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1062658C (en) * | 1996-02-29 | 2001-02-28 | 胜利石油管理局测井公司 | Multi-stage self controlling safety exploder |
CN103089202A (en) * | 2012-12-28 | 2013-05-08 | 西安通源石油科技股份有限公司 | Tension bar type pressure exploder |
CN117514104A (en) * | 2023-12-15 | 2024-02-06 | 中国矿业大学 | Mechanical impact type piezoelectric circulating ignition device for methane in-situ explosion |
CN117514104B (en) * | 2023-12-15 | 2024-05-17 | 中国矿业大学 | Mechanical impact type piezoelectric circulating ignition device for methane in-situ explosion |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
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 |