CN2030753U - Diaphragm alarm and explosion protection expansion means - Google Patents
Diaphragm alarm and explosion protection expansion means Download PDFInfo
- Publication number
- CN2030753U CN2030753U CN 87203383 CN87203383U CN2030753U CN 2030753 U CN2030753 U CN 2030753U CN 87203383 CN87203383 CN 87203383 CN 87203383 U CN87203383 U CN 87203383U CN 2030753 U CN2030753 U CN 2030753U
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- Prior art keywords
- bellows
- lever
- alarm
- expansion means
- pressure
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- 238000004880 explosion Methods 0.000 title abstract description 7
- 238000010304 firing Methods 0.000 claims abstract description 9
- 239000011521 glass Substances 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 5
- 206010053682 Brachycephaly Diseases 0.000 claims description 2
- 208000009283 Craniosynostoses Diseases 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 230000003068 static effect Effects 0.000 claims description 2
- 238000000748 compression moulding Methods 0.000 claims 1
- 239000002184 metal Substances 0.000 abstract description 4
- 238000009527 percussion Methods 0.000 description 14
- 230000000694 effects Effects 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000013467 fragmentation Methods 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 235000015927 pasta Nutrition 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a diaphragm alarm and explosion protection expansion means which is the improvement of the existing box-type metal explosion-proof expansion means. The utility model is composed of a diaphragm expansion joint, a firing device, an alarm unit, a releasing means, an oiling indicator and an outer shell. The diaphragm alarm and explosion protection expansion means can ensure that the transformer runs at the micro positive pressure condition. When the temperature is changed, the transformer oil is stored or replenished. When the contingency causes the dangerous value of the pressure in the transformer to rise, the diaphragm alarm and explosion protection expansion means can automatically alarm. If the pressure continues to rise, the diaphragm alarm and explosion protection expansion means can automatically release the pressure and ensures the safe operation of the electric network.
Description
The utility model relates to a kind of bellows-type explosion-proof expander of reporting to the police, and is the improvement to the existing explosion-proof expander of boxlike metal, is applicable to guarantee that high-voltage mutual inductor moves under pressure-fired, and when contingency, can report to the police automatically and explosion-proof.
The transformer oil oxidation meeting of making moist sets off an explosion in the high-voltage mutual inductor, and the explosion-proof expander of existing boxlike metal shows as Fig. 1, by boxlike expansion joint (1), and standing screw (2), percussion lock (3), releasing device (4) is formed, and the major defect of this device is:
1, boxlike expansion joint (1) shape such as tin can, conduit is connected on expansion joint 1/2 place, has 1/10 air not extract out when finding time, because air is different with the coefficient of expansion of transformer oil, cause job insecurity, quickened the oxidation of transformer oil, influenced insulation.
2, standing screw (2) is too thin, can not contact with lining ring, in transit because of action of gravity, causes lining ring to move outward, causes leakage phenomenon.
3, percussion lock (3) is quiet percussion, and its release pressure size depends mainly on the release glass intensity, and the difference of or manufacturer batch different because of glass is a definite value so be difficult to guarantee glass intensity.Directly influence the percussion period of percussion lock, caused producing misoperation easily, influenced the normal operation of instrument transformer.
4, the release area of releasing device (4) is little, can not the transformation in the transformer be bought in moment to have discharged, and under condition of high voltage, causes the blast of transformer oil easily.
5, no oiling indication and Pressure gauge directly perceived be can not determine injection flow, can not judge the pressure when instrument transformer normally moves.
The purpose of this utility model is to overcome the above-mentioned shortcoming of prior art, designs a kind ofly to be formed in parallel by several bellows, has explosion-proof and the bellows-type warning effect the explosion-proof expander of reporting to the police.
The utility model is by the bellows-type expansion joint, percussion lock, and releasing device, filling gauge, warning device, shell six parts are formed.
The bellows-type expansion joint is the hydraulic pressure senser.Moving percussion is adopted in percussion lock, and the reliability of percussion reaches absolutely, and when the instrument transformer internal pressure was elevated to set-point, the percussion lock percussion discharged lid, forces to discharge the glass fragmentation, and the instrument transformer internal pressure can be discharged.The release box internal diameter of releasing device approximates the internal diameter of instrument transformer magnetic tower and oil storage Cabinet retainer ring, so enough release areas are arranged.Filling gauge can be the instrument transformer oiling under different temperatures, and the pasta position is monitored, the temperature variant situation of indication oil volume.Warning device is used for when alarm pressure reaches set-point, sends sound automatically and reports to the police, and its pressure changing is indicated by Pressure gauge.
Description of drawings:
Fig. 1 is the explosion-proof expander structure schematic diagram of boxlike metal
Fig. 2 is the bellows-type explosion-proof expander structure schematic diagram of reporting to the police
Fig. 3 is the percussion lock structural representation.
Fig. 4 is the warning device structural representation.
Among Fig. 2, Fig. 3, Fig. 4:
Encircle 4-among the 1-bellows-type expansion joint 2-vacuum valve 3-
Adjusting pad 5-fixed head 6-pillar 7-lower platen 8-top board 9-moving fulcrum 10-fixed pivot 11-fine motion lever 12-pointer 13-compression plate 14-striker post 15-transmission rod 16-lever 17-lever box 18-striker spring 19-firing pin body 20-support 21-pallet 22-discharges glass 23-release cap 24-and discharges box 25-porous supporting plate 26-big linking tube 27-oil storage Cabinet lid 28-shell 30-index window seat 31-sealing ring 32-glass plate 33-index window lid 34-casing cover 35-pump nozzle 36-body 37-bellows 38-microswitch 39-nut
Narrate content of the present utility model in conjunction with the accompanying drawings:
As Fig. 2, Fig. 3, shown in Figure 4: bellows-type expansion joint (1) adopts to sew up behind the stainless steel die forming and forms, and at its peak ductule is housed.
Percussion lock: be contained in the striker post (14) by firing pin body (19), striker spring (18) is equipped with in the upper end, loam cake is compressed in striker spring in the striker post (14), firing pin body (19) curved portions and long-armed linking to each other of lever (16), the galianconism bar of lever (16) is in the following stomidium of transmission rod (15), the top of transmission rod (15) and compression plate (13) join, and lever (16) is contained in the lever box (17) and with axle and connects.
Releasing device: discharge release glass (22) is housed in the box (24), discharge lid (23), discharge box (24) and be contained in support (20) upper end, support (20) is contained on the pallet (21), with porous plate two ends adjacency.
Filling gauge: be fixed on to be threaded on the top board (8) by fixed pivot (10) lower end, the upper end links to each other with fine motion lever (11) brachycephaly with axle, be connected with moving fulcrum (9) with axle in fine motion lever (11) interstitial hole, fixedlying connected with supporting plate in the moving fulcrum lower end, is placed on the center circle of bellows-type expansion joint (1).The long head of fine motion lever (11) is fixing with axle and pointer (12), fixed head (15) is used for to pointer (12) orientation.
Warning device: body (36) is contained on the instrument transformer static pressure pump nozzle (35), and bellows (37) is connected with body (36) with screw thread.Bellows (37) front end and sensitive switch (38) have a slight distance, and (6～10mm), sensitive switch (38) is fixing with nut (39).
Index window seat (30) is housed on the shell (28), glass plate (32), shell (28) joins with casing cover (34).
Operating principle of the present utility model is as follows:
The utility model takes to take out the method for making a bet to the instrument transformer oiling of finding time.Exterior nut cap and vacuum-pumping tube on the evacuation valve (2) join, and oiling cap and oil fuel tube join, and vacuumize with oiling to carry out simultaneously.In transformer oil injects bellows-type expansion joint (1), under the effect of pressure, bellows-type expansion joint (1) is expanded, make moving fulcrum (9), fine motion lever (11) moves up, and drives pointer (12) and moves up, and expresses the oiling position.
When the oily temperature rise of transformer oil in the instrument transformer, the volumetric expansion of oil, unnecessary oil is through porous pallet (25), and support (20), big linking tube (26) are in bellows-type expansion joint (1), and corrugated plate struts up and down, and oil is stored in the bellows-type expansion joint (1).
When oily temperature drop was low, oil volume was shunk, under the effect of bellows-type expansion joint (1) elastic force, with oil pressure in instrument transformer.
When contingency took place, the instrument transformer internal pressure raise, and transformer oil elongates bellows (37) through pump nozzle (35), body (36), and when pressure reached alarm pressure, bellows (37) backed down sensitive switch (38), sends alarm signal.
Pressure continues to rise, when reaching predetermined value, bellows-type expansion joint (1) expands, compression plate (13) is moved downward, it is downward to drive transmission rod (15) simultaneously, force long-armed the moving upward of the lever (16) that is fixed on transmission rod (15) lower end, firing pin body (19) is moved upward, compression striker spring (18) is when compression plate (13) continues to move downward, when lever (16) breaks away from firing pin body (19), striker spring (18) elongation, make firing pin body (19) percussion downwards discharge lid (23), force to discharge glass (22) fragmentation, the instrument transformer internal pressure can be discharged.
Transformer oil is through porous supporting plate (25), support (20), pallet (21), and the endoporus that discharges box (24) is got rid of.Discharge lid (23), the fragment that discharges glass (22) falls among the pallet.
Compare with prior art, the utility model can guarantee that instrument transformer moves under pressure-fired power, make transformer oil reliably with isolated from atmosphere, prevent the transformer oil oxidation of going bad.When variations in temperature, store or additional transformer oil.When contingency causes that the instrument transformer internal pressure raises, as long as reach set-point, can report to the police automatically, as not take measures, pressure continues to raise, and releasing device is release pressure automatically, guarantees electric power netting safe running.
The utility model transportation of can directly falling, its structure is: at first install top board (8), ring is housed in its underpart, last ring below is contained in the bellows-type expansion joint (1), and middle ring (3) is equipped with in bellows-type expansion joint (1) below, refills lower platen (7) afterwards, use clamp, with pillar (6), fixed head (5), adjusting pad (4) is fixed.
Alarm pressure of the present utility model is 0.2～0.4 kilograms per centimeter, and release pressure is 0.3～0.5 kilograms per centimeter.
Claims (1)
1, a kind of bellows-type explosion-proof expander of reporting to the police, by shell (28), pillar (6), top board (8), lower platen (7), middle ring (3) is formed, and it is characterized in that:
(1) bellows-type expansion joint (1) is to be sewed up by the stainless steel compression molding to form, and its peak is equipped with ductule;
(2) firing pin body (19) is contained in the striker post (14), striker spring (18) is equipped with in striker post (14) upper end, with loam cake striker spring (18) is compressed in the striker post (14), firing pin body (19) camber portion and long-armed linking to each other of lever (16), the galianconism of lever (16) is in the following stomidium of transmission rod (15), the top of transmission rod (15) and compression plate (13) riveted joint, lever (16) is contained in the lever box (17), and connects with axle;
(3) release glass (22) is housed in the release box (24), discharges lid (23), discharge the upper end that box (24) is welded in support (20), support (20) lower end and instrument transformer oil conservator cover (27) and weld;
(4) body (36) is contained on the instrument transformer static pressure pump nozzle (35), and bellows (37) is connected with body (36) with screw thread, and the distance between bellows (37) front end and the sensitive switch (38) is 6～10 millimeters, and sensitive switch (38) is fixing with nut (39);
(5) fixed pivot (10) lower end is fixed on to be threaded on the top board (8), the upper end links to each other with fine motion lever (11) brachycephaly with axle, connect with moving fulcrum (9) with axle in fine motion lever (11) interstitial hole, fixedly connected with supporting plate in the moving fulcrum lower end, be placed on the center circle of bellows-type expansion joint (1), the long head of fine motion lever (11) is fixing with axle and pointer (12), and fixed head (5) is used for to pointer (12) orientation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87203383 CN2030753U (en) | 1987-06-24 | 1987-06-24 | Diaphragm alarm and explosion protection expansion means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87203383 CN2030753U (en) | 1987-06-24 | 1987-06-24 | Diaphragm alarm and explosion protection expansion means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2030753U true CN2030753U (en) | 1989-01-11 |
Family
ID=4819397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87203383 Withdrawn CN2030753U (en) | 1987-06-24 | 1987-06-24 | Diaphragm alarm and explosion protection expansion means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2030753U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499152A (en) * | 2013-09-27 | 2014-01-08 | 河南农业大学 | Intelligent monitoring system for solar vacuum tube |
| CN104484982A (en) * | 2014-12-22 | 2015-04-01 | 上海电器陶瓷厂有限公司 | Signal output method for fault of oil-immersed transformer |
| CN104867670A (en) * | 2015-05-11 | 2015-08-26 | 中国西电电气股份有限公司 | Oil immersed type current transformer with explosion-proof device |
| CN107221412A (en) * | 2017-08-03 | 2017-09-29 | 沈阳博安电力设备有限公司 | The explosion-proof expander of wavy metal formula release of pressure |
| CN110260010A (en) * | 2019-07-23 | 2019-09-20 | 国网湖南省电力有限公司 | A remote-operable film breaking device and film breaking method for transformer accident oil discharge valve |
| CN110274062A (en) * | 2019-07-23 | 2019-09-24 | 国网湖南省电力有限公司 | A kind of broken film device and broken film method of Accident of Transformer draining valve sealing diaphragm |
| CN110729104A (en) * | 2019-10-29 | 2020-01-24 | 国网湖北省电力有限公司宜昌供电公司 | Oil supplementing method of power transformer and expander lifting device thereof |
| CN111043433A (en) * | 2019-12-19 | 2020-04-21 | 西安西电电力电容器有限责任公司 | Pressure compensation device |
-
1987
- 1987-06-24 CN CN 87203383 patent/CN2030753U/en not_active Withdrawn
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499152B (en) * | 2013-09-27 | 2015-04-15 | 河南农业大学 | Intelligent monitoring system for solar vacuum tube |
| CN103499152A (en) * | 2013-09-27 | 2014-01-08 | 河南农业大学 | Intelligent monitoring system for solar vacuum tube |
| CN104484982A (en) * | 2014-12-22 | 2015-04-01 | 上海电器陶瓷厂有限公司 | Signal output method for fault of oil-immersed transformer |
| CN104484982B (en) * | 2014-12-22 | 2016-09-07 | 上海电器陶瓷厂有限公司 | A kind of signal output method of oil-filled transformer fault |
| CN104867670A (en) * | 2015-05-11 | 2015-08-26 | 中国西电电气股份有限公司 | Oil immersed type current transformer with explosion-proof device |
| CN107221412B (en) * | 2017-08-03 | 2023-08-18 | 沈阳博安电力设备有限公司 | Metal corrugated pressure-releasing explosion-proof expander |
| CN107221412A (en) * | 2017-08-03 | 2017-09-29 | 沈阳博安电力设备有限公司 | The explosion-proof expander of wavy metal formula release of pressure |
| CN110260010A (en) * | 2019-07-23 | 2019-09-20 | 国网湖南省电力有限公司 | A remote-operable film breaking device and film breaking method for transformer accident oil discharge valve |
| CN110260010B (en) * | 2019-07-23 | 2023-06-06 | 国网湖南省电力有限公司 | A remote-operable film breaking device and film breaking method for transformer accident oil discharge valve |
| CN110274062B (en) * | 2019-07-23 | 2023-06-23 | 国网湖南省电力有限公司 | A film breaking device and film breaking method for sealing diaphragm of transformer accident oil discharge valve |
| CN110274062A (en) * | 2019-07-23 | 2019-09-24 | 国网湖南省电力有限公司 | A kind of broken film device and broken film method of Accident of Transformer draining valve sealing diaphragm |
| CN110729104A (en) * | 2019-10-29 | 2020-01-24 | 国网湖北省电力有限公司宜昌供电公司 | Oil supplementing method of power transformer and expander lifting device thereof |
| CN111043433A (en) * | 2019-12-19 | 2020-04-21 | 西安西电电力电容器有限责任公司 | Pressure compensation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |