CN104362030A - Hydraulic spring operating mechanism and opening and closing coil replacing method thereof - Google Patents
Hydraulic spring operating mechanism and opening and closing coil replacing method thereof Download PDFInfo
- Publication number
- CN104362030A CN104362030A CN201410696603.XA CN201410696603A CN104362030A CN 104362030 A CN104362030 A CN 104362030A CN 201410696603 A CN201410696603 A CN 201410696603A CN 104362030 A CN104362030 A CN 104362030A
- Authority
- CN
- China
- Prior art keywords
- operating mechanism
- surge tank
- hydraulic spring
- grease cup
- spring grease
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
- H01H33/30—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator
- H01H33/34—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator hydraulic
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
- H01H33/40—Power arrangements internal to the switch for operating the driving mechanism using spring motor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
Abstract
The invention discloses a hydraulic spring operating mechanism. The hydraulic spring operating mechanism comprises a hydraulic spring operating mechanism body, an exhaust hole of the hydraulic spring operating mechanism body is communicated with a buffering tank through a communication valve, the upper portion of the buffering tank is communicated with a vacuum pump through a pipeline, and a vacuum degree adjusting valve is arranged at the upper portion of the buffering tank. The invention further discloses an opening and closing coil replacing method. The opening and closing coil replacing method comprises the steps that the exhaust hole of the hydraulic spring operating mechanism body is communicated with the buffering tank through the communication valve; the upper portion of the buffering tank is communicated with the vacuum pump through the pipeline; the vacuum degree adjusting valve is additionally arranged at the upper portion of the buffering tank; the communication valve is opened, and the vacuum degree adjusting valve is closed; a vacuum pump is started till a small amount of hydraulic oil enters the buffering tank; a screw on a fault opening and closing coil is dismounted, and the fault opening and closing coil is pulled out of the hydraulic spring operating mechanism body; the vacuum degree adjusting valve is adjusted till the liquid level height of the hydraulic oil in the buffering tank is not changed; the fault opening and closing coil is replaced with the new opening and closing coil; the vacuum pump is closed, and the vacuum degree adjusting valve is completely opened. The hydraulic spring operating mechanism is suitable for high-voltage circuit breakers.
Description
Technical field
The present invention relates to field of electrical equipment, particularly a kind of hydraulic spring grease cup operating mechanism and divide-shut brake changing of coils method thereof.
Background technology
Along with the fast development of China's economy, hydraulic spring grease cup operating mechanism is widely used in primary cut-out, this hydraulic spring grease cup operating mechanism generally comprises hydraulic spring grease cup operating mechanism body and divide-shut brake coil, and divide-shut brake coil is communicated with low pressure grease chamber with the high-pressure oil chamber of hydraulic spring grease cup operating mechanism body respectively by 2 apertures.During the work of hydraulic spring grease cup operating mechanism, by the conversion of break-make hydraulic control oil between high-pressure oil chamber and low pressure grease chamber of divide-shut brake coil, thus complete separating brake and the making process of primary cut-out.As divide-shut brake coil breaks down, then primary cut-out cannot work.
At present, conventional divide-shut brake changing of coils method is: after power failure, first all discharged by intrinsic for hydraulic spring grease cup operating mechanism hydraulic oil; Then, fault divide-shut brake coil is changed; Finally vacuumize again, inject new hydraulic oil.Following problem is there is in this divide-shut brake changing of coils method when practical operation:
1, need a large amount of personnel to operate, operation is many, and workload is large;
2, the processing time is long, and efficiency is low;
3, the old oil got rid of is replaced by fresh oil, adds cost.
Summary of the invention
The object of the invention is the deficiency in order to overcome above-mentioned background technology, provide a kind of easy to operate, efficiency is high and the hydraulic spring grease cup operating mechanism that cost is low and divide-shut brake changing of coils method thereof.
In order to realize above object, a kind of hydraulic spring grease cup operating mechanism provided by the invention, comprise hydraulic spring grease cup operating mechanism body and divide-shut brake coil, two described divide-shut brake coils are communicated with low pressure grease chamber with the high-pressure oil chamber of described hydraulic spring grease cup operating mechanism body respectively, the steam vent of described hydraulic spring grease cup operating mechanism body is communicated with surge tank by communicating valve, there is vacuum pump on the top of described surge tank by pipeline communication, and the top of described surge tank is also provided with vacuum degree adjuster valve.By adding the surge tank of band vacuum pump at the steam vent place of hydraulic spring grease cup operating mechanism body, like this, when divide-shut brake coil need be changed, only need will be evacuated to certain vacuum degree in surge tank with vacuum pump, and coordinate vacuum degree adjuster valve to make the pressure at hydraulic oil top equal with atmospheric pressure with the pressure sum of hydraulic oil self-acting in aperture place, just the replacing of divide-shut brake coil can be carried out, after replacing, by vacuum degree adjuster valve, the hydraulic oil in surge tank is fed back in hydraulic spring grease cup operating mechanism body again, simple to operation, workload is little, high and the hydraulic oil without the need to more renewing of efficiency, cost is low.
In such scheme, described surge tank is positioned at above described hydraulic spring grease cup operating mechanism body.
In such scheme, described surge tank is made up of transparent material, is convenient to the liquid level observing hydraulic oil in surge tank like this.
In such scheme, described pipeline is transparent hose, and whether be convenient to like this observe in pipeline has hydraulic oil to flow into, and if any the pipeline then should removed or more renew, enters vacuum pump to prevent hydraulic oil.
Present invention also offers a kind of divide-shut brake changing of coils method, comprise the following steps:
1) on the steam vent of hydraulic spring grease cup operating mechanism body, add communicating valve, and by described communicating valve, surge tank is communicated with described hydraulic spring grease cup operating mechanism body;
2) pipeline communication vacuum pump is passed through on the top of described surge tank;
3) vacuum degree adjuster valve is added on the top of described surge tank;
4) open described communicating valve, close described vacuum degree adjuster valve;
5) described vacuum pump is started, until there is a little hydraulic oil to enter described surge tank;
6) remove the screw on fault divide-shut brake coil, and slowly described fault divide-shut brake coil is extracted from described hydraulic spring grease cup operating mechanism body;
7) regulate described vacuum degree adjuster valve simultaneously, when the liquid level of hydraulic oil in described surge tank raises, tune up the open degree of described vacuum degree adjuster valve, when the liquid level of hydraulic oil in described surge tank declines, turn the open degree of described vacuum degree adjuster valve down, until the liquid level of hydraulic oil is constant in described surge tank;
8) the divide-shut brake coil more renewed;
9), after changing, close described vacuum pump, open described vacuum degree adjuster valve completely, the hydraulic oil in described surge tank is back in described hydraulic spring grease cup operating mechanism body.
By adding the surge tank of band vacuum pump at the steam vent place of hydraulic spring grease cup operating mechanism body, like this, when divide-shut brake coil need be changed, only need will be evacuated to certain vacuum degree in surge tank with vacuum pump, and coordinate vacuum degree adjuster valve to make the pressure at hydraulic oil top equal with atmospheric pressure with the pressure sum of hydraulic oil self-acting in aperture place, just the replacing of divide-shut brake coil can be carried out, after replacing, by vacuum degree adjuster valve, the hydraulic oil in surge tank is fed back in hydraulic spring grease cup operating mechanism body again, simple to operation, workload is little, high and the hydraulic oil without the need to more renewing of efficiency, cost is low.
Above-mentioned divide-shut brake changing of coils method also comprises step 10) when in the hydraulic oil total reflux in described surge tank to described hydraulic spring grease cup operating mechanism body, close described communicating valve.
In such scheme, described surge tank is positioned at above described hydraulic spring grease cup operating mechanism body.
In such scheme, described surge tank is made up of transparent material.
In such scheme, described pipeline is transparent hose.
The beneficial effect that technical scheme provided by the invention is brought is:
1, by adding the surge tank of band vacuum pump at the steam vent place of hydraulic spring grease cup operating mechanism body, like this, when divide-shut brake coil need be changed, only need will be evacuated to certain vacuum degree in surge tank with vacuum pump, and coordinate vacuum degree adjuster valve to make the pressure at hydraulic oil top equal with atmospheric pressure with the pressure sum of hydraulic oil self-acting in aperture place, just the replacing of divide-shut brake coil can be carried out, after replacing, by vacuum degree adjuster valve, the hydraulic oil in surge tank is fed back in hydraulic spring grease cup operating mechanism body again, simple to operation, workload is little, high and the hydraulic oil without the need to more renewing of efficiency, cost is low,
2, by being made up of transparent material by surge tank, the liquid level observing hydraulic oil in surge tank is convenient to like this;
3, by being transparent hose by pipe design, whether have hydraulic oil flow into, if any the pipeline then should removed or more renew, enter vacuum pump to prevent hydraulic oil if being convenient to like this observe in pipeline;
4, after end of operation, close communicating valve, can effectively prevent the intrinsic hydraulic oil of hydraulic spring grease cup operating mechanism from going bad.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure, hydraulic spring grease cup operating mechanism body 1, divide-shut brake coil 2, communicating valve 3, surge tank 4, pipeline 5, vacuum pump 6, vacuum degree adjuster valve 7.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment 1:
A kind of hydraulic spring grease cup operating mechanism as shown in Figure 1, comprise hydraulic spring grease cup operating mechanism body 1 and divide-shut brake coil 2, two described divide-shut brake coils 2 are communicated with low pressure grease chamber with the high-pressure oil chamber of described hydraulic spring grease cup operating mechanism body 1 respectively, the steam vent of described hydraulic spring grease cup operating mechanism body 1 is communicated with surge tank 4 by communicating valve 3, described surge tank 4 by support installing on the end face of described hydraulic spring grease cup operating mechanism body 1, the end face of described surge tank 4 is communicated with vacuum pump 6 by pipeline 5, the end face of described surge tank 4 is also provided with vacuum degree adjuster valve 7.By adding the surge tank 4 of band vacuum pump 6 at the steam vent place of hydraulic spring grease cup operating mechanism body 1, like this, when divide-shut brake coil need be changed, only need be evacuated to certain vacuum degree with vacuum pump 6 by surge tank 4, and coordinate vacuum degree adjuster valve 7 to make the pressure at hydraulic oil top equal with atmospheric pressure with the pressure sum of hydraulic oil self-acting in aperture place, just the replacing of divide-shut brake coil can be carried out, after replacing, by vacuum degree adjuster valve 7, the hydraulic oil in surge tank 4 is fed back in hydraulic spring grease cup operating mechanism body 1 again, simple to operation, workload is little, high and the hydraulic oil without the need to more renewing of efficiency, cost is low.
Above-mentioned surge tank 4 is positioned at above described hydraulic spring grease cup operating mechanism body 1.Described surge tank 4 is made up of transparent material, is convenient to the liquid level observing hydraulic oil in surge tank 4 like this.Described pipeline 5 is transparent hose, and whether be convenient to like this observe in pipeline 5 has hydraulic oil to flow into, and if any the pipeline then should removed or more renew, enters vacuum pump 6 to prevent hydraulic oil.
Embodiment 2:
A kind of divide-shut brake changing of coils method, comprises the following steps:
1) on the steam vent of hydraulic spring grease cup operating mechanism body 1, add communicating valve 3, and by described communicating valve 3, surge tank 4 is communicated with described hydraulic spring grease cup operating mechanism body 1;
2) vacuum pump 6 is communicated with on the top of described surge tank 4 by pipeline 5;
3) vacuum degree adjuster valve 7 is added on the top of described surge tank 4;
4) open described communicating valve 3, close described vacuum degree adjuster valve 7;
5) described vacuum pump 6 is started, until there is a little hydraulic oil to enter described surge tank 4;
6) remove the screw on fault divide-shut brake coil 2, and slowly described fault divide-shut brake coil 2 is extracted from described hydraulic spring grease cup operating mechanism body 1;
7) regulate described vacuum degree adjuster valve 7 simultaneously, when the liquid level of hydraulic oil in described surge tank 4 raises, tune up the open degree of described vacuum degree adjuster valve 7, when the liquid level of hydraulic oil in described surge tank 4 declines, turn the open degree of described vacuum degree adjuster valve 7 down, until the liquid level of hydraulic oil is constant in described surge tank 4; Now, because the pressure at hydraulic oil top is equal with atmospheric pressure with the pressure sum of hydraulic oil self-acting in aperture place, flow out from aperture so do not have hydraulic oil;
8) the divide-shut brake coil 2 more renewed;
9), after changing, close described vacuum pump 6, open described vacuum degree adjuster valve 7 completely, make the hydraulic oil in described surge tank 4 be back in described hydraulic spring grease cup operating mechanism body 1;
10) when in the hydraulic oil total reflux in described surge tank 4 to described hydraulic spring grease cup operating mechanism body 1, described communicating valve 3 is closed.
By adding the surge tank 4 of band vacuum pump 6 at the steam vent place of hydraulic spring grease cup operating mechanism body 1, like this, when divide-shut brake coil need be changed, only need be evacuated to certain vacuum degree with vacuum pump 6 by surge tank 4, and coordinate vacuum degree adjuster valve 7 to make the pressure at hydraulic oil top equal with atmospheric pressure with the pressure sum of hydraulic oil self-acting in aperture place, just the replacing of divide-shut brake coil can be carried out, after replacing, by vacuum degree adjuster valve 7, the hydraulic oil in surge tank 4 is fed back in hydraulic spring grease cup operating mechanism body 1 again, simple to operation, workload is little, high and the hydraulic oil without the need to more renewing of efficiency, cost is low.
Above-mentioned surge tank 4 is positioned at above described hydraulic spring grease cup operating mechanism body 1.Described surge tank 4 is made up of transparent material.Described pipeline 5 is transparent hose.
The present invention is by adding the surge tank 4 of band vacuum pump 6 at the steam vent place of hydraulic spring grease cup operating mechanism body 1, like this, when divide-shut brake coil need be changed, only need be evacuated to certain vacuum degree with vacuum pump 6 by surge tank 4, and coordinate vacuum degree adjuster valve 7 to make the pressure at hydraulic oil top equal with atmospheric pressure with the pressure sum of hydraulic oil self-acting in aperture place, just the replacing of divide-shut brake coil can be carried out, after replacing, by vacuum degree adjuster valve 7, the hydraulic oil in surge tank 4 is fed back in hydraulic spring grease cup operating mechanism body 1 again, simple to operation, workload is little, high and the hydraulic oil without the need to more renewing of efficiency, cost is low, by being made up of transparent material by surge tank 4, be convenient to the liquid level observing hydraulic oil in surge tank 4 like this, by pipeline 5 is designed to transparent hose, whether have hydraulic oil flow into, if any the pipeline then should removed or more renew, enter vacuum pump 6 to prevent hydraulic oil if being convenient to like this observe in pipeline 5, after end of operation, close communicating valve 3, can effectively prevent the hydraulic oil in hydraulic spring grease cup operating mechanism body 1 from going bad.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a hydraulic spring grease cup operating mechanism, comprise hydraulic spring grease cup operating mechanism body (1) and divide-shut brake coil (2), two described divide-shut brake coils (2) are communicated with low pressure grease chamber with the high-pressure oil chamber of described hydraulic spring grease cup operating mechanism body (1) respectively, it is characterized in that, the steam vent of described hydraulic spring grease cup operating mechanism body (1) is communicated with surge tank (4) by communicating valve (3), the top of described surge tank (4) is communicated with vacuum pump (6) by pipeline (5), the top of described surge tank (4) is also provided with vacuum degree adjuster valve (7).
2. a kind of hydraulic spring grease cup operating mechanism according to claim 1, is characterized in that, described surge tank (4) is positioned at described hydraulic spring grease cup operating mechanism body (1) top.
3. a kind of hydraulic spring grease cup operating mechanism according to claim 1, is characterized in that, described surge tank (4) is made up of transparent material.
4. a kind of hydraulic spring grease cup operating mechanism according to claim 1, is characterized in that, described pipeline (5) is transparent hose.
5. a divide-shut brake changing of coils method, is characterized in that, comprises the following steps:
1) on the steam vent of hydraulic spring grease cup operating mechanism body (1), add communicating valve (3), and by described communicating valve (3), surge tank (4) is communicated with described hydraulic spring grease cup operating mechanism body (1);
2) vacuum pump (6) is communicated with on the top of described surge tank (4) by pipeline (5);
3) vacuum degree adjuster valve (7) is added on the top of described surge tank (4);
4) open described communicating valve (3), close described vacuum degree adjuster valve (7);
5) described vacuum pump (6) is started, until there is a little hydraulic oil to enter described surge tank (4);
6) remove the screw in fault divide-shut brake coil (2), and slowly described fault divide-shut brake coil (2) is extracted from described hydraulic spring grease cup operating mechanism body (1);
7) regulate described vacuum degree adjuster valve (7) simultaneously, when the liquid level of hydraulic oil in described surge tank (4) raises, tune up the open degree of described vacuum degree adjuster valve (7), when the liquid level of hydraulic oil in described surge tank (4) declines, turn the open degree of described vacuum degree adjuster valve (7) down, until the liquid level of described surge tank (4) interior hydraulic oil is constant;
8) the divide-shut brake coil (2) more renewed;
9) after changing, close described vacuum pump (6), open described vacuum degree adjuster valve (7) completely, the hydraulic oil in described surge tank (4) is back in described hydraulic spring grease cup operating mechanism body (1).
6. a kind of divide-shut brake changing of coils method according to claim 5, it is characterized in that, also comprise step 10) when in the hydraulic oil total reflux in described surge tank (4) to described hydraulic spring grease cup operating mechanism body (1), close described communicating valve (3).
7. a kind of divide-shut brake changing of coils method according to claim 5, is characterized in that, described surge tank (4) is positioned at described hydraulic spring grease cup operating mechanism body (1) top.
8. a kind of divide-shut brake changing of coils method according to claim 5, it is characterized in that, described surge tank (4) is made up of transparent material.
9. a kind of divide-shut brake changing of coils method according to claim 5, it is characterized in that, described pipeline (5) is transparent hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410696603.XA CN104362030A (en) | 2014-11-26 | 2014-11-26 | Hydraulic spring operating mechanism and opening and closing coil replacing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410696603.XA CN104362030A (en) | 2014-11-26 | 2014-11-26 | Hydraulic spring operating mechanism and opening and closing coil replacing method thereof |
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| Publication Number | Publication Date |
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| CN104362030A true CN104362030A (en) | 2015-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410696603.XA Pending CN104362030A (en) | 2014-11-26 | 2014-11-26 | Hydraulic spring operating mechanism and opening and closing coil replacing method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107104378A (en) * | 2017-06-09 | 2017-08-29 | 国网辽宁省电力有限公司朝阳供电公司 | The replacing point of 220kV breakers, the method for combined floodgate valve |
| CN110349785A (en) * | 2019-06-04 | 2019-10-18 | 平高东芝（河南）开关零部件制造有限公司 | A kind of hydraulic operating mechanism method for maintaining |
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| CN101692381A (en) * | 2009-09-11 | 2010-04-07 | 江苏省电力公司句容市供电公司 | Replacing device and replacing method for butterfly valve of main transformer |
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| CN103269023A (en) * | 2013-05-14 | 2013-08-28 | 国家电网公司 | Transformer accessory converting all-in-one machine and using method thereof |
| CN204204730U (en) * | 2014-11-26 | 2015-03-11 | 国家电网公司 | With the hydraulic spring grease cup operating mechanism of divide-shut brake apparatus for changing of coils |
-
2014
- 2014-11-26 CN CN201410696603.XA patent/CN104362030A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101013636A (en) * | 2007-02-09 | 2007-08-08 | 沈阳东华工大高压电器设备有限公司 | Casing-integrated spring hydraulic operation mechanism for primary cut-out |
| CN101692381A (en) * | 2009-09-11 | 2010-04-07 | 江苏省电力公司句容市供电公司 | Replacing device and replacing method for butterfly valve of main transformer |
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| CN103269023A (en) * | 2013-05-14 | 2013-08-28 | 国家电网公司 | Transformer accessory converting all-in-one machine and using method thereof |
| CN204204730U (en) * | 2014-11-26 | 2015-03-11 | 国家电网公司 | With the hydraulic spring grease cup operating mechanism of divide-shut brake apparatus for changing of coils |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107104378A (en) * | 2017-06-09 | 2017-08-29 | 国网辽宁省电力有限公司朝阳供电公司 | The replacing point of 220kV breakers, the method for combined floodgate valve |
| CN110349785A (en) * | 2019-06-04 | 2019-10-18 | 平高东芝（河南）开关零部件制造有限公司 | A kind of hydraulic operating mechanism method for maintaining |
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Application publication date: 20150218 |