CN104979133A - Quick-acting oil pressure relay - Google Patents
Quick-acting oil pressure relay Download PDFInfo
- Publication number
- CN104979133A CN104979133A CN201410146335.4A CN201410146335A CN104979133A CN 104979133 A CN104979133 A CN 104979133A CN 201410146335 A CN201410146335 A CN 201410146335A CN 104979133 A CN104979133 A CN 104979133A
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- China
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- oil pressure
- cavity
- epicoele
- air chamber
- resorption
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Abstract
The invention discloses a quick-acting oil pressure relay. An upper cavity and a lower cavity are connected, an air exhausting plug is disposed at the side port of the upper cavity, and a test hole cover is installed at the upper port of the upper cavity; a wire outlet hole is disposed in a wiring seat, the wiring seat is welded at the lower portion of the lower cavity, a test rod is disposed on the housing of an air chamber, and the air chamber is installed at the right side of the lower cavity; a connecting flange is installed on the side surface of the upper portion of the air chamber, and an oil chamber is disposed at the upper portion of an isolation corrugated pipe; and a vent plug is disposed at the upper portion of a balancer. The quick-acting oil pressure relay acts by use of dynamic pressure speedup caused by an accident in a fuel tank, and the faster an oil pressure increase speed is, the more rapidly the relay acts; and since the spreading speed of oil pressure waves in transformer oil is quite fast, the quick-acting oil pressure relay is sensitive to react and accurate to act, rapidly emits signals and cuts off a power supply, the upper cavity and the lower cavity and other function members are disposed at individual chambers, and the mutual effects are quite small.
Description
Technical field
The present invention relates to relay technical field, be specially a kind of quick oil pressure relay.
Background technology
Quick oil pressure relay is the class in relay; it is a kind of oil tank of transformer pressure protective relaying device; its sensitivity, accuracy and fail safe are the important indicators weighing its quality; but mostly there is the low shortcoming of fail safe, sensitivity and accuracy in quick oil pressure relay in the market; main cause is exactly that their structural design is reasonable not; for this reason, we propose a kind of quick oil pressure relay.
Summary of the invention
The object of the present invention is to provide a kind of quick oil pressure relay, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme: a kind of quick oil pressure relay, comprise test port lid, air relief cock, epicoele, cavity of resorption, wire hole, junction block, prod, air chamber, sensitive switch, operation bellows, balancer, spring, vent plug, mounting flange, grease chamber and isolation bellows, described epicoele is connected with cavity of resorption, described air relief cock is the side Kou Chu in epicoele, described test port lid be arranged on epicoele suitable for reading on; Described wire hole is positioned on junction block, described junction block is welded on the bottom of cavity of resorption, described prod is positioned on the housing of air chamber, described air chamber is arranged on the right side of cavity of resorption, described sensitive switch is connected with operation bellows, and connector is arranged on the dividing plate of epicoele and cavity of resorption, described balancer is arranged on the top of air chamber, described spring attended operation bellows and isolation bellows; Described mounting flange is arranged on the side on air chamber top, and described grease chamber is positioned at the top of isolation bellows; Described vent plug is positioned at balancer top.
Preferably, described epicoele and cavity of resorption are separated by a dividing plate.
Preferably, described epicoele place suitable for reading is provided with and the draw-in groove tested port lid and be connected.
Preferably, described spring has two, the connection on right side isolation bellows and air chamber.
Preferably, described grease chamber leaves a hook structure.
Operation principle: when transformer normally runs, because quick oil pressure relay installation site is lower than transformer oil upper thread, relay grease chamber is communicated with oil tank of transformer, isolate bellows in grease chamber and be subject to less quiet oil pressure, spring in epicoele and cavity of resorption compensates this quiet oil pressure and reaches balance, quick oil pressure relay is failure to actuate, when inside transformer breaks down, grease chamber's internal pressure rises suddenly, when pressure reaches operating value, isolation bellows compressive deformation, pressure in epicoele and cavity of resorption raises, the displacement of operation bellows, sensitive switch action, sending signal and cutting off the electricity supply makes transformer out of service.
Compared with prior art, the invention has the beneficial effects as follows: this quick oil pressure relay, it utilizes the dynamic pressure speedup caused due to accident in fuel tank to carry out action, and oil pressure growth rate is faster, and action is rapider; Because the propagation velocity of oil pressure ripple in transformer oil is exceedingly fast, so quick oil pressure relay is quick on the draw, action is accurate, sends signal rapidly and cuts off the electricity supply, and its epicoele and cavity of resorption and other functor are separately room, and mutual impact is less.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, in the embodiment of the present invention, a kind of quick oil pressure relay, comprise test port lid 1, air relief cock 2, epicoele 3, cavity of resorption 4, wire hole 5, junction block 6, prod 7, air chamber 8, sensitive switch 9, operation bellows 10, balancer 11, spring 12, vent plug 13, mounting flange 14, grease chamber 15 and isolation bellows 16, described epicoele 3 is connected with cavity of resorption 4, described epicoele 3 and cavity of resorption 4 are separated by a dividing plate, described air relief cock 2 is the side Kou Chu in epicoele 3, described test port lid 1 is arranged on epicoele 3 mouthfuls, described epicoele 3 mouthfuls of places are provided with and the draw-in groove tested port lid 1 and be connected, described wire hole 5 is positioned on junction block 6, described junction block 6 is welded on the bottom of cavity of resorption 4, described prod 7 is positioned on the housing of air chamber 8, described air chamber 8 is arranged on the right side of cavity of resorption 4, described sensitive switch 9 is connected with operation bellows 10, and connector is arranged on the dividing plate of epicoele 3 and cavity of resorption 4, and described balancer 11 is arranged on the top of air chamber 8, described spring 12 attended operation bellows 10 and isolation bellows 16, described spring 12 has two, the connection isolation bellows 16 on right side and air chamber 8, described mounting flange 14 is arranged on the side on air chamber 8 top, and described grease chamber 15 is positioned at the top of isolation bellows 16, described grease chamber 15 leaves a hook structure, described vent plug 13 is positioned at balancer 11 top.
Operation principle: when transformer normally runs, because quick oil pressure relay installation site is lower than transformer oil upper thread, relay grease chamber 15 is communicated with oil tank of transformer, isolate bellows 16 in grease chamber and be subject to less quiet oil pressure, spring in epicoele 3 and cavity of resorption 4 compensates this quiet oil pressure and reaches balance, quick oil pressure relay is failure to actuate, when inside transformer breaks down, grease chamber 16 internal pressure rises suddenly, when pressure reaches operating value, isolation bellows 16 compressive deformation, pressure in epicoele 3 and cavity of resorption 4 raises, the displacement of operation bellows 10, sensitive switch 9 action, sending signal and cutting off the electricity supply makes transformer out of service.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technical scheme in each embodiment also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.
Claims (5)
1. a quick oil pressure relay, comprise test port lid, air relief cock, epicoele, cavity of resorption, wire hole, junction block, prod, air chamber, sensitive switch, operation bellows, balancer, spring, vent plug, mounting flange, grease chamber and isolation bellows, it is characterized in that: described epicoele is connected with cavity of resorption, described air relief cock is the side Kou Chu in epicoele, described test port lid be arranged on epicoele suitable for reading on; Described wire hole is positioned on junction block, described junction block is welded on the bottom of cavity of resorption, described prod is positioned on the housing of air chamber, described air chamber is arranged on the right side of cavity of resorption, described sensitive switch is connected with operation bellows, and connector is arranged on the dividing plate of epicoele and cavity of resorption, described balancer is arranged on the top of air chamber, described spring attended operation bellows and isolation bellows; Described mounting flange is arranged on the side on air chamber top, and described grease chamber is positioned at the top of isolation bellows; Described vent plug is positioned at balancer top.
2. a kind of quick oil pressure relay according to claim 1, is characterized in that: described epicoele and cavity of resorption are separated by a dividing plate.
3. a kind of quick oil pressure relay according to claim 1, is characterized in that: described epicoele place suitable for reading is provided with and the draw-in groove tested port lid and be connected.
4. a kind of quick oil pressure relay according to claim 1, is characterized in that: described spring has two, the connection on right side isolation bellows and air chamber.
5. a kind of quick oil pressure relay according to claim 1, is characterized in that: described grease chamber leaves a hook structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410146335.4A CN104979133A (en) | 2014-04-11 | 2014-04-11 | Quick-acting oil pressure relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410146335.4A CN104979133A (en) | 2014-04-11 | 2014-04-11 | Quick-acting oil pressure relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104979133A true CN104979133A (en) | 2015-10-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410146335.4A Pending CN104979133A (en) | 2014-04-11 | 2014-04-11 | Quick-acting oil pressure relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104979133A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2510980Y (en) * | 2001-12-17 | 2002-09-11 | 邵长青 | Pressure-protection relay for transformer |
| CN2710224Y (en) * | 2004-04-27 | 2005-07-13 | 沈阳变压器研究所有限公司 | Quick-action oil pressurized delay for trasnformer |
| CN2796075Y (en) * | 2005-01-25 | 2006-07-12 | 王权 | Gas relay |
| EP1783796A2 (en) * | 2005-11-07 | 2007-05-09 | ABB Sp.zo.o. | Control sensor for devices filled with dielectric liquid, especially transformers |
| CN201112272Y (en) * | 2007-09-12 | 2008-09-10 | 王新建 | Quick-acting oil pressure relay |
| CN203503550U (en) * | 2013-10-11 | 2014-03-26 | 国家电网公司 | Oil-immersed transformer oil tank pressure relay protection device |
-
2014
- 2014-04-11 CN CN201410146335.4A patent/CN104979133A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2510980Y (en) * | 2001-12-17 | 2002-09-11 | 邵长青 | Pressure-protection relay for transformer |
| CN2710224Y (en) * | 2004-04-27 | 2005-07-13 | 沈阳变压器研究所有限公司 | Quick-action oil pressurized delay for trasnformer |
| CN2796075Y (en) * | 2005-01-25 | 2006-07-12 | 王权 | Gas relay |
| EP1783796A2 (en) * | 2005-11-07 | 2007-05-09 | ABB Sp.zo.o. | Control sensor for devices filled with dielectric liquid, especially transformers |
| CN201112272Y (en) * | 2007-09-12 | 2008-09-10 | 王新建 | Quick-acting oil pressure relay |
| CN203503550U (en) * | 2013-10-11 | 2014-03-26 | 国家电网公司 | Oil-immersed transformer oil tank pressure relay protection device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151014 |