CN110274062B - Film breaking device and film breaking method for sealing film of transformer accident oil drain valve - Google Patents
Film breaking device and film breaking method for sealing film of transformer accident oil drain valve Download PDFInfo
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- CN110274062B CN110274062B CN201910665388.XA CN201910665388A CN110274062B CN 110274062 B CN110274062 B CN 110274062B CN 201910665388 A CN201910665388 A CN 201910665388A CN 110274062 B CN110274062 B CN 110274062B
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- energy storage
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- firing pin
- pressure spring
- arm
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/14—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member
- F16K17/16—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member with fracturing diaphragm ; Rupture discs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Emergency Lowering Means (AREA)
Abstract
The invention discloses a film breaking device and a film breaking method for a sealing film of an accident oil drain valve of a transformer, wherein the film breaking device comprises a firing pin, an energy storage mechanism, a locking mechanism and an operating mechanism; one end of a steel cable of the energy storage mechanism is connected with a firing pin guide rod in the oil discharge pipeline, the other end of the steel cable is connected with a rotating shaft of an energy storage gear outside the oil discharge pipeline, the energy storage gear steel cable is rotated to pull the firing pin guide rod backwards, so that an energy storage pressure spring on the firing pin guide rod is compressed and stored, and when the energy storage pressure spring is compressed to a limit state, a tooth at the lower side of the outer end of a locking straight arm is locked by a locking mechanism to buckle the energy storage gear, and the inner end of the locking straight arm is supported by the locking pressure spring. When a fire disaster occurs, the operating handle of the operating mechanism is remotely pulled, the transmission steel wire rope pulls the oil discharge valve to open the handle to rotate and pull the connecting rod, the connecting rod drives the tripping crank arm to rotate, the fixed pulley at the lower end of the tripping crank arm downwards presses the inner end of the locking straight arm to enable teeth at the outer end of the locking straight arm to be separated from the energy storage gear, the energy storage pressure spring in an energy storage state releases energy, and the firing pin is instantly ejected to crash the glass membrane.
Description
Technical Field
The invention relates to a transformer accident oil drain valve, in particular to a membrane crushing device and a membrane crushing method for a sealing membrane of the transformer accident oil drain valve.
Background
In operation, the main transformer of a substation or the converter transformer of a converter station has a probability of causing fire accidents due to various faults or other reasons. When a fire disaster occurs, transformer oil needs to be discharged so as to avoid expanding the fire disaster range, so that a transformer manufacturer can configure an accident oil discharge valve for the transformer, the accident oil discharge valve is arranged at the lower part of the transformer, an outlet of the accident oil discharge valve is generally connected with a straight pipe and a ninety-degree elbow to be used as an oil discharge pipeline, and an outlet of the elbow faces downwards.
Accident drain valves are typically butterfly valves, ball valves, gate valves or shut-off valves, wherein gate valves and shut-off valves are currently prohibited from use. The glass diaphragm with the thickness of 5mm is used for reinforcing the sealing of the accident oil drain valve, is clamped at the elbow pipeline opening through a rubber gasket and a flange, and the other end of the glass diaphragm is connected with the accident oil drain valve. When oil is required to be discharged, a patrol worker can knock the glass oil sealing film piece into a broken state by a hand hammer to open an oil discharge channel, then an accident oil discharge valve is opened to discharge transformer oil, and the patrol worker is required to operate close to the oil discharge valve. But the on-site operation environment is limited, such as a grid of a main transformer oil tank or a converter transformer firewall block, and the like, and the membrane can not be broken and the oil can not be discharged rapidly.
Disclosure of Invention
The invention aims to provide a mechanical remote membrane crushing device and a membrane crushing method without a worker in a fire scene, so that the opening time of an oil discharge channel is shortened, and transformer oil is rapidly discharged.
The invention relates to a film crushing device of a sealing film of an accident oil drain valve of a transformer, which is provided with an oil drain straight pipe section and a downward oil drain elbow in sequence at the rear of a glass film, wherein the film crushing device comprises a firing pin, an energy storage mechanism, a locking mechanism and an operating mechanism; the energy storage mechanism comprises a firing pin guide rod, an energy storage pressure spring, a limiting plate, a steel cable and an energy storage gear, wherein the limiting plate is fixed in the energy storage mechanism along the radial direction of the oil discharge straight pipe section, the firing pin guide rod penetrates through the center of the limiting plate to be horizontally arranged, the energy storage pressure spring is sleeved on the front side of the corresponding limiting plate on the firing pin guide rod, the firing pin is connected to the front end of the firing pin guide rod, the energy storage gear is positioned outside the oil discharge elbow, the rear end of the steel cable is wound on a rotating shaft of the energy storage gear, and the front end of the steel cable penetrates through the oil discharge elbow and is connected with the rear end of the firing pin guide rod; the locking mechanism comprises a locking pressure spring and a locking straight arm, the locking pressure spring is positioned outside the oil discharge elbow and is vertically arranged above the steel cable, a rotating shaft is arranged in the middle of the arm body of the locking straight arm, one end of the lower side of the arm body is connected with the upper end of the locking pressure spring, the other end of the arm body is buckled with the energy storage gear, the steel cable pulls the firing pin backwards through the firing pin guide rod, and the energy storage pressure spring is compressed to store energy; the operating mechanism comprises a transmission crank arm, a transmission steel wire rope, an oil discharge valve opening handle, a connecting rod and a tripping crank arm which are hinged in sequence, the corners of the transmission crank arm are hinged on a mounting seat frame in an isolation room through pin shafts, the outer end of the transmission crank arm is connected with an operating handle, and the operating handle is packaged to prevent misoperation.
In one embodiment of the above technical solution, the front end of the striker guide rod is vertically connected with a pulley frame, a fixed pulley at the end of the frame body slides along the inner wall of the straight oil drainage pipe section, and the front end of the striker guide rod passes through the center position of the pulley frame body and then is connected with the rear end of the striker.
In one embodiment of the foregoing technical disclosure, two ends of the energy storage compression spring are axially limited by a pulley frame and a limiting plate respectively.
In one embodiment of the above technical solution, the front end of the steel cable is provided with a hinge joint with an axial U-shaped groove, a guide sleeve is welded on the outer wall of the oil discharge elbow at the axial center line of the oil discharge straight pipe section, the hinge joint pulls the steel cable to pass through the guide sleeve and then enter the bent oil discharge head, and the rear end of the striker guide rod is inserted into the U-shaped groove of the hinge joint and fixed through a pin shaft.
In one embodiment of the above technical solution, the guide sleeve is welded with an upward conical boss on the upper side of the guide sleeve outside the oil discharge elbow, and the lower end of the locking compression spring is sleeved on the conical boss and is fixed with the guide sleeve into a whole.
In one embodiment of the above technical solution, one end of the lower side of the locking straight arm has a downward conical boss, the other end has teeth matching with the energy storage gear, the conical boss is inserted into the upper end of the central hole of the locking compression spring, and the teeth are inserted into the tooth slot of the energy storage gear to lock the energy storage gear.
In one embodiment of the above technical solution, the upper end of the trip crank arm is connected with a straight hinge joint, the lower end of the trip crank arm is connected with a fixed pulley, and the corner of the trip crank arm is connected with a rotating shaft, and the trip crank arm is hinged with the connecting rod through the straight hinge joint.
In one embodiment of the foregoing technical disclosure, the device further includes a housing covering the straight hinge joint, the trip lever, the locking straight arm, the locking compression spring, the energy storage gear and the steel cable outside the elbow, and the rotating shafts of the trip lever, the locking straight arm and the energy storage gear are respectively mounted on the housing.
In one embodiment of the above technical solution, the transmission steel wire rope is a stainless steel wire rope, two ends of the transmission steel wire rope are connected with hinges, the transmission steel wire rope is guided by a plurality of fixed pulleys, and a sleeve is sleeved between two adjacent fixed pulleys corresponding to the transmission steel wire rope.
In one embodiment of the above technical solution, the oil valve opening handle is fixed at the outer end of the valve opening rotating shaft of the oil valve, and includes a long handle section located at one side of the valve opening rotating shaft and a short handle section located at the opposite side of the valve opening rotating shaft.
The method for crashing the glass membrane by the device provided by the invention comprises the following steps:
(1) When the energy storage gear is installed, the steel cable is rotated to pull the steel cable backwards, and the steel cable pulls the firing pin guide rod backwards, so that the energy storage pressure spring on the firing pin guide rod is compressed and stored;
(2) When the energy storage pressure spring is compressed to a limit state, the tooth at the lower side of the outer end of the locking straight arm buckles the energy storage gear;
(3) When a fire disaster occurs, the operating handle of the operating mechanism is pulled, the transmission steel wire rope pulls the oil drain valve to open the handle to rotate, the oil drain valve opens the handle to pull the connecting rod, the connecting rod drives the tripping crank arm to rotate, the fixed pulley at the lower end of the tripping crank arm downwards presses the inner end of the locking straight arm to enable the locking straight arm to rotate and separate from the energy storage gear, a steel cable of the energy storage mechanism is enabled to lose locking, the energy storage pressure spring in an energy storage state releases energy, and the firing pin is ejected to crash the glass membrane.
One end of a steel cable of the energy storage mechanism is connected with a firing pin guide rod in an oil discharge pipeline, the other end of the steel cable is connected with a rotating shaft of an energy storage gear outside the oil discharge pipeline, when the rotating shaft of the energy storage gear is rotated to pull the steel cable backwards, the steel cable pulls the firing pin guide rod backwards, so that an energy storage pressure spring on the firing pin guide rod is compressed and stored, when the energy storage pressure spring is compressed to a limit state, the energy storage gear is buckled through teeth on the lower side of the outer end of a locking straight arm of the locking mechanism, and the inner end of the locking straight arm is supported through the locking pressure spring. When the transformer works normally, the device is in the energy storage state. When a fire disaster occurs, a worker pulls an operating handle of an operating mechanism in an isolation room, a transmission steel wire rope of the operating mechanism pulls an oil discharge valve to open a handle to rotate, the oil discharge valve opens a connecting rod to drive a tripping crank arm to rotate, a fixed pulley at the lower end of the tripping crank arm presses down the inner end of a locking straight arm to enable the locking straight arm to rotate, so that teeth at the outer end of the locking straight arm are separated from an energy storage gear, a steel cable of the energy storage mechanism is enabled to lose locking, then the energy storage pressure spring in an energy storage state releases energy, and a firing pin is ejected out instantly to crash a glass membrane. The oil discharge valve can be simultaneously opened and the broken membrane can be simultaneously opened by pulling the operation wrench, so that the purpose of safe and quick oil discharge by mechanical remote operation is realized, and misoperation is effectively prevented.
Drawings
Fig. 1 is a schematic plan view of an embodiment of the present invention.
Fig. 2 is an enlarged schematic view of fig. 1 in direction a (including a partial section, the energy storage compression spring is in an energy storage state).
FIG. 3 is an enlarged schematic view of the device in FIG. 1 (with a partial section, the energy storage compression spring is in a state of releasing the impact glass membrane)
Detailed Description
The embodiment is suitable for crushing the membrane of the oil drain pipeline with the caliber of about D150.
Referring to fig. 1 to 3, the film breaking device for the sealing film of the accident oil drain valve of the transformer disclosed in this embodiment includes a striker 1, a pulley frame 2, a striker guide rod 3, an energy storage compression spring 4, a limiting plate 5, a steel cable 6 and an energy storage gear 7, a guide sleeve 8, a locking compression spring 9, a locking straight arm 10, a tripping crank arm 11, a straight hinge 12, a connecting rod 13, a fixed pulley DHL, a housing 14, an oil drain valve opening handle 15, a transmission steel wire rope 16, a transmission crank arm 17, an operation handle 18, a mounting seat frame 19, a riding wheel 20, a guide wheel 21 and a sleeve 22.
A strip-shaped limiting plate 5 is arranged at the intersection position of the radial central surface and the axial central surface of the rear part in the oil discharge straight pipe section ZG, the upper edge and the lower edge of the limiting plate 5 are arc-shaped corresponding to the inner wall of the oil discharge straight pipe section, and a firing pin guide rod mounting hole is arranged at the central position.
The pulley yoke 2 is arranged along the radial surface of the oil discharge straight pipe section, and the fixed pulley DHL at the end part of the frame body slides along the inner wall of the oil discharge straight pipe section.
The front end of the firing pin guide rod 3 passes through the center of the limiting plate 5 and is sleeved with the energy storage pressure spring 4, and then is connected with the rear end of the firing pin, and the two ends of the energy storage pressure spring are axially limited through the pulley yoke body and the limiting plate respectively.
The tail of the firing pin 1 is fixed on the front side of the central position of the pulley frame 2.
The energy storage gear 7 is fixed outside the oil discharge elbow WT. The front end of the steel cable 6 is provided with a hinge joint, and the rear end is wound on the rotating shaft of the energy storage gear 7. A guide sleeve 8 is welded on the outer wall of the oil discharge elbow at the position corresponding to the striker guide rod. The hinge joint at the front end of the steel cable 6 pulls the steel cable to pass through the guide sleeve 8 and enter the oil discharge elbow, and the rear end of the firing pin guide rod 3 is inserted into the U-shaped notch of the hinge joint and fixed through the pin shaft.
An upward conical boss 81 is welded on the upper side of the guide sleeve 8 outside the oil discharge elbow, the conical boss is inserted into the lower end of the central hole of the locking pressure spring 9, and the lower end of the locking pressure spring 9 is fixed with the guide sleeve 8 through spot welding.
One end of the lower side of the locking straight arm 10 is provided with a downward conical boss, the other end of the locking straight arm is provided with teeth matched with the energy storage gear 7, and a rotating shaft is vertically connected between the arm body corresponding to the conical boss and the teeth.
The rotating shaft of the energy storage gear is rotated, the front end of the steel cable pulls the firing pin guide rod backwards, the energy storage pressure spring on the firing pin guide rod is compressed, when the energy storage pressure spring is compressed to the shortest length, the conical boss at the lower side of the locking straight arm is inserted into the upper end of the central hole of the locking pressure spring 9, and the teeth are inserted into the tooth grooves of the energy storage gear 7, so that the energy storage gear 7 is limited, and the steel cable 6 is locked. At this time, the energy storage pressure spring is in an energy storage state, and the transformer is in a normal working state.
The tripping crank arm 11 is positioned above the locking straight arm 10, the upper end of the tripping crank arm 11 is hinged with the straight hinge 12, the lower end of the tripping crank arm is connected with the fixed pulley DHL, the corner of the arm body is vertically connected with a rotating shaft, and the fixed pulley DHL is positioned on the upper surface of the locking straight arm 10.
In view of safety, a housing 14 is provided outside the oil discharge elbow to house the straight joint 12, the trip lever 11, the locking straight arm 10, the locking compression spring 9 and the energy storage gear 7.
Meanwhile, the housing can be used as a mounting fixing seat for rotating shafts of the tripping crank arm 11, the locking straight arm 10 and the energy storage gear 7, and two ends of the three rotating shafts are mounted and fixed on the housing 14 through bearings and bearing seats.
The oil drain valve opening handle 15 is fixed to the outer end of the valve opening shaft of the oil drain valve PYF, and includes a long handle section located at one side of the valve opening shaft and a short handle section located at the opposite side thereof. Both ends of the transmission wire rope 16 are connected with hinges.
One end of the transmission steel wire rope 16 is hinged with the tail end of the long handle section of the oil discharge valve opening handle 15 through a pin shaft, the other end of the transmission steel wire rope is hinged with the long arm body of the transmission crank arm 17, and the short arm body of the transmission crank arm 17 is connected with the operation handle 18. The corners of the transmission crank arms 17 are hinged on mounting brackets 19 in an isolated room (such as a guard room or a fire department) through pin shafts, and the operation handles need to be packaged so as to prevent misoperation in case of no emergency. When the oil is required to be discharged in emergency situations such as fire, the encapsulation entity is opened or destroyed, and the oil can be discharged remotely by pulling the operation handle. The transmission steel wire rope of this embodiment adopts a stainless steel wire rope.
One end of the connecting rod 13 is hinged with the straight hinge joint 12, and the other end is hinged with the tail end of the short handle section of the oil discharge valve opening handle 15 through a pin shaft.
Because the length of the wire rope is long and needs to be supported and guided, for fixing and guiding the wire rope, the supporting roller 20 and the guide roller 21 are arranged on the path of the wire rope to an isolation room, a sleeve 21 made of rubber or steel is sleeved on the wire rope part between the adjacent guide rollers, and a tripping signal is transmitted by sliding the transmission wire rope in the sleeve.
When the transformer is working normally, the oil drain valve opening handle 15 is at the left closed position in the figure, and the fixed pulley at the lower end of the tripping crank arm does not apply pressure to the locking straight arm 10.
When a fire accident occurs, a worker opens or breaks the packaging entity of the operation handle in an isolation room, pulls the operation handle 18, and the transmission crank arm 17 rotates to pull the transmission steel wire rope 16, the transmission steel wire rope 16 pulls the long handle section of the oil discharge valve opening handle 15 to the right, the oil discharge valve opening handle drives the valve opening rotating shaft to rotate to open the valve, meanwhile, the short handle section of the oil discharge valve opening handle 15 pulls the connecting rod to the left, the connecting rod pulls the release crank arm, the release crank arm rotates around the rotating shaft to enable the fixed pulley at the lower end of the release crank arm to downwards press the left end of the locking straight arm 10, so that the locking straight arm 10 rotates, the tooth at the right end of the locking straight arm 10 is separated from the energy storage gear 7, the steel cable 6 is locked, the striker guide rod 3 loses tension, the energy storage pressure spring 4 on the release spring can quickly push the pulley frame forwards, the striker at the front end of the pulley frame bumps into the glass membrane instantly, and the transformer oil is quickly discharged.
When the glass membrane is reinstalled after oil discharge, the energy storage spring is restored to an energy storage state and locked.
Claims (10)
1. The utility model provides a garrulous membrane device of transformer accident oil drain valve sealing diaphragm, the rear of glass diaphragm has oil extraction straight tube section and oil extraction elbow down in proper order, its characterized in that: the device comprises a firing pin, an energy storage mechanism, a locking mechanism and an operating mechanism;
the energy storage mechanism comprises a firing pin guide rod, an energy storage pressure spring, a limiting plate, a steel cable and an energy storage gear, wherein the limiting plate is fixed in the energy storage mechanism along the radial direction of the oil discharge straight pipe section, the firing pin guide rod penetrates through the center of the limiting plate to be horizontally arranged, the energy storage pressure spring is sleeved on the front side of the corresponding limiting plate on the firing pin guide rod, the firing pin is connected to the front end of the firing pin guide rod, the energy storage gear is positioned outside the oil discharge elbow, the rear end of the steel cable is wound on a rotating shaft of the energy storage gear, and the front end of the steel cable penetrates through the oil discharge elbow and is connected with the rear end of the firing pin guide rod;
the locking mechanism comprises a locking pressure spring and a locking straight arm, the locking pressure spring is positioned outside the oil discharge elbow and is vertically arranged above the steel cable, a rotating shaft is arranged in the middle of the arm body of the locking straight arm, one end of the lower side of the arm body is connected with the upper end of the locking pressure spring, the other end of the arm body is buckled with the energy storage gear, the steel cable pulls the firing pin backwards through the firing pin guide rod, and the energy storage pressure spring is compressed to store energy;
the operating mechanism comprises a transmission crank arm, a transmission steel wire rope, an oil discharge valve opening handle, a connecting rod and a tripping crank arm which are hinged in sequence, the corners of the transmission crank arm are hinged on a mounting seat frame in an isolation room through pin shafts, the outer end of the transmission crank arm is connected with an operating handle, and the operating handle is packaged to prevent misoperation.
2. The film shredding apparatus of claim 1 wherein: the front end of the firing pin guide rod is vertically connected with a pulley frame, a fixed pulley at the end part of the frame body slides along the inner wall of the oil discharge straight pipe section, and the front end of the firing pin guide rod passes through the central position of the pulley frame body and is connected with the rear end of the firing pin; and two ends of the energy storage pressure spring are axially limited through the pulley yoke and the limiting plate respectively.
3. The film shredding apparatus of claim 2 wherein: the front end of the steel cable is provided with a hinge joint with an axial U-shaped groove, a guide sleeve is welded on the outer wall of the oil discharge elbow at the position of the axial center line of the oil discharge straight pipe section, the hinge joint pulls the steel cable to pass through the guide sleeve and then enter the bent oil discharge head, and the rear end of the firing pin guide rod is inserted into the U-shaped groove of the hinge joint and is fixed through a pin shaft.
4. A film shredding apparatus as in claim 3 wherein: the guide sleeve is welded with an upward conical boss on the upper side outside the oil discharge elbow, and the lower end of the locking pressure spring is sleeved on the conical boss and is fixed with the guide sleeve into a whole.
5. The film shredding apparatus of claim 4 wherein: one end of the lower side of the locking straight arm is provided with a downward conical boss, the other end of the locking straight arm is provided with teeth matched with the energy storage gear, the conical boss is inserted into the upper end of the central hole of the locking pressure spring, and the teeth are inserted into tooth grooves of the energy storage gear to lock the energy storage gear.
6. The film shredding apparatus of claim 5 wherein: the upper end of the tripping crank arm is connected with a straight hinge joint, the lower end of the tripping crank arm is connected with a fixed pulley, the corner is connected with a rotating shaft, and the connecting rod is hinged through the straight hinge joint.
7. The film shredding apparatus of claim 6 wherein: the device also comprises a housing which covers the steel cable outside the straight hinge joint, the tripping crank arm, the locking straight arm, the locking pressure spring, the energy storage gear and the elbow, and the rotating shafts of the tripping crank arm, the locking straight arm and the energy storage gear are respectively arranged on the housing.
8. The film shredding apparatus of claim 1 wherein: the steel wire rope adopts stainless steel wire rope, and its both ends all are connected with the articulated head, and through a plurality of fixed pulley direction, the sleeve pipe has been overlapped between the corresponding adjacent two fixed pulleys of wire rope outward.
9. The film shredding apparatus of claim 1 wherein: the oil valve opening handle is fixed at the outer end of the valve opening rotating shaft of the oil valve and comprises a long handle section positioned at one side of the valve opening rotating shaft and a short handle section positioned at the opposite side of the valve opening rotating shaft.
10. A method of shattering a glass membrane using the apparatus of claim 1, comprising the steps of:
(1) When the energy storage gear is installed, the steel cable is rotated to pull the steel cable backwards, and the steel cable pulls the firing pin guide rod backwards, so that the energy storage pressure spring on the firing pin guide rod is compressed and stored;
(2) When the energy storage pressure spring is compressed to a limit state, the tooth at the lower side of the outer end of the locking straight arm buckles the energy storage gear;
(3) When a fire disaster occurs, the operating handle of the operating mechanism is pulled, the transmission steel wire rope pulls the oil drain valve to open the handle to rotate, the oil drain valve opens the handle to pull the connecting rod, the connecting rod drives the tripping crank arm to rotate, the fixed pulley at the lower end of the tripping crank arm downwards presses the inner end of the locking straight arm to enable the locking straight arm to rotate and separate from the energy storage gear, a steel cable of the energy storage mechanism is enabled to lose locking, the energy storage pressure spring in an energy storage state releases energy, and the firing pin is ejected to crash the glass membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910665388.XA CN110274062B (en) | 2019-07-23 | 2019-07-23 | Film breaking device and film breaking method for sealing film of transformer accident oil drain valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910665388.XA CN110274062B (en) | 2019-07-23 | 2019-07-23 | Film breaking device and film breaking method for sealing film of transformer accident oil drain valve |
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| Publication Number | Publication Date |
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| CN110274062A CN110274062A (en) | 2019-09-24 |
| CN110274062B true CN110274062B (en) | 2023-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910665388.XA Active CN110274062B (en) | 2019-07-23 | 2019-07-23 | Film breaking device and film breaking method for sealing film of transformer accident oil drain valve |
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| GB595752A (en) * | 1943-06-12 | 1947-12-16 | British Thomson Houston Co Ltd | Improvements in and relating to methods of and apparatus for absorbing decompositionproducts in liquid-insulated electrical apparatus |
| US2878622A (en) * | 1955-06-29 | 1959-03-24 | American Window Glass Co | Glass break-off machine |
| CN2030753U (en) * | 1987-06-24 | 1989-01-11 | 锦州家用电器二厂 | Diaphragm alarm and explosion protection expansion means |
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| CN206250012U (en) * | 2016-12-07 | 2017-06-13 | 保定天威变压器工程技术咨询维修有限公司 | A kind of Accident of Transformer draining valve new structure |
| CN206880975U (en) * | 2017-07-06 | 2018-01-16 | 刘俐红 | A kind of high-power transformer fire control enlarging device |
| CN208014511U (en) * | 2017-12-29 | 2018-10-26 | 南昌变压器有限责任公司 | A kind of amorphous alloy transformer that can be explosion-proof |
| CN210218821U (en) * | 2019-07-23 | 2020-03-31 | 国网湖南省电力有限公司 | Film breaking device for sealing diaphragm of transformer emergency oil drain valve |
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2019
- 2019-07-23 CN CN201910665388.XA patent/CN110274062B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB595752A (en) * | 1943-06-12 | 1947-12-16 | British Thomson Houston Co Ltd | Improvements in and relating to methods of and apparatus for absorbing decompositionproducts in liquid-insulated electrical apparatus |
| US2878622A (en) * | 1955-06-29 | 1959-03-24 | American Window Glass Co | Glass break-off machine |
| CN2030753U (en) * | 1987-06-24 | 1989-01-11 | 锦州家用电器二厂 | Diaphragm alarm and explosion protection expansion means |
| CN101995186A (en) * | 2010-05-05 | 2011-03-30 | 王元知 | Corner shot capable of rotating and cocking simultaneously |
| CN206250012U (en) * | 2016-12-07 | 2017-06-13 | 保定天威变压器工程技术咨询维修有限公司 | A kind of Accident of Transformer draining valve new structure |
| CN206880975U (en) * | 2017-07-06 | 2018-01-16 | 刘俐红 | A kind of high-power transformer fire control enlarging device |
| CN208014511U (en) * | 2017-12-29 | 2018-10-26 | 南昌变压器有限责任公司 | A kind of amorphous alloy transformer that can be explosion-proof |
| CN210218821U (en) * | 2019-07-23 | 2020-03-31 | 国网湖南省电力有限公司 | Film breaking device for sealing diaphragm of transformer emergency oil drain valve |
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| CN110274062A (en) | 2019-09-24 |
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