CN201788260U - Sulfur hexafluoride gas density relay test stand - Google Patents
Sulfur hexafluoride gas density relay test stand Download PDFInfo
- Publication number
- CN201788260U CN201788260U CN2010201452770U CN201020145277U CN201788260U CN 201788260 U CN201788260 U CN 201788260U CN 2010201452770 U CN2010201452770 U CN 2010201452770U CN 201020145277 U CN201020145277 U CN 201020145277U CN 201788260 U CN201788260 U CN 201788260U
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- gas
- sulfur hexafluoride
- leading screw
- density relay
- valve
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Abstract
The utility model relates to a sulfur hexafluoride gas density relay test stand which comprises a box body, a gas storage tank (1), a screw rod pressure-adjusting cylinder (2) and the like, wherein the gas storage tank (1) is arranged on a bottom plate in the box body, and the upper part of the gas storage tank is provided with a valve; the outer end of the screw rod pressure-adjusting cylinder (2) extends outside the box body; a piston is arranged in the screw rod pressure-adjusting cylinder (2) and is connected with a screw rod; the other end of the screw rod extends outside the outer end of the screw rod pressure-adjusting cylinder (2); the inner end part of the screw rod pressure-adjusting cylinder (2) is connected by a tee joint which is connected with the valve and an air pipe (5) on the gas storage tank (1); the air pipe (5) is distributed with four or more branch air pipes (4); the upper ends of the branch air pipes (4) are provided with interfaces connected with a relay; the interfaces are connected with an alarm locking indicating lamp; and each branch air pipe (4) is provided with a valve. The sulfur hexafluoride gas density relay test stand has the characteristics of being simple in structure, low in cost and convenient for operation, detecting a plurality of relays at the same time, improving the working efficiency and the like.
Description
Technical field
The utility model relates to a kind of sulfur hexafluoride gas density relay testing table.
Background technology
Sulfur hexafluoride gas (claiming SF6 gas again) is used widely in high voltage electric equipment at present, although SF6 gas has good arc-extinguishing property and insulating property, but these two kinds of performances all have substantial connection with density, when gas reach the certain pressure value time, the performance of SF6 gas is equivalent to the insulating property and the arc extinction performance of insulating oil, density in air chamber descends, can cause arc extinction performance and decreasing insulating, hidden danger causes the accident, the SF6 gas density relay is to be used for detecting the interior density of air chamber, when occurring leaking or be lower than certain pressure, sends SF6 gas warning, just implement locking when being lower than the certain pressure value again, remind timely tonifying Qi of operations staff or non-stop plugging to leak, preventing that electrical equipment is in operation to be damaged causes a serious accident, and the safety that improves operation of power networks is played a role.SF6 gas density relay use amount in high voltage electric equipment is a lot, so before installing and using, all will carry out verification, to guarantee that insufficient pressure appears in equipment operation or can accurately report to the police or locking when leaking, this just need use checkout equipment that it is detected before installation, and present checkout equipment has SF6 gas density relay checking instrument or testing table, has following shortcoming: the device systems complexity, the cost height, once can only detect a relay, can not a plurality ofly test inefficiency simultaneously.
Summary of the invention
In order to overcome above-mentioned defective, it is a kind of simple in structure that the utility model provides, and cost is low, and is easy to operate, the sulfur hexafluoride gas density relay testing table that can a plurality of relays detects simultaneously.
The technical solution adopted in the utility model is: a kind of sulfur hexafluoride gas density relay testing table, comprise casing, the gas-holder that can deposit sulfur hexafluoride gas, leading screw pressure regulation tube, snorkel and valve, described gas-holder vertically is arranged on the casing inner bottom plating, and its top is provided with valve; Described leading screw pressure regulation tube horizontally set, casing is stretched out in its outer end, piston is arranged in the leading screw pressure regulation tube and with leading screw and is connected, the other end of leading screw stretches out the outer end of leading screw pressure regulation tube, and be connected with turning handle, the inner end of leading screw pressure regulation tube is connected with threeway by snorkel, the in addition two ends of this a threeway wherein end are communicated with valve on the gas-holder, the other end is connected with tracheae, this tracheae extends to the below of roof box, on this tracheae, distribute to be provided with and be no less than four gas-distributing pipe, gas-distributing pipe all stretches out roof box, and be provided with the interface that can be connected in the top with sulfur hexafluoride gas density relay, each is connected with a locking pilot lamp with an alarm lamp each interface by circuit, on the gas-distributing pipe between each interface and the roof box valve is arranged.
Described snorkel, tracheae and gas-distributing pipe are copper pipe.
Described bottom half is provided with trundle.
The utility model inserts interface with the plug of sulfur hexafluoride gas relay, open the valve on gas-holder top, make leading screw pressure regulation tube and each gas-distributing pipe feed sulfur hexafluoride gas by threeway, its internal gas pressure unanimity of while,, whether can implement to report to the police or locking in the force value of regulation to change the force value that reaches gas in each gas-distributing pipe in the leading screw pressure regulation tube by inside or outside turning handle thereby detect the sulfur hexafluoride gas relay that is connected with gas-distributing pipe.The utility model is simple in structure, and cost is low, a plurality of interfaces can be set detect a plurality of relays simultaneously, increases work efficiency.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Embodiment
Now in conjunction with the accompanying drawings the utility model is further described, Fig. 1 is a kind of embodiment of the present utility model, mainly comprise casing, can deposit gas-holder 1, leading screw pressure regulation tube 2, snorkel 3 and the valve etc. of sulfur hexafluoride gas, described gas-holder 1 vertically is arranged on the casing inner bottom plating, and its top is provided with valve.Described leading screw pressure regulation tube 2 horizontally sets, casing is stretched out in its outer end, leading screw pressure regulation tube 2 inside are provided with piston, on the piston, and leading screw pressure regulation tube 2 between be provided with O-ring seal, the outside of piston is connected with leading screw, and the other end of leading screw stretches out the outer end of leading screw pressure regulation tube 2 and is connected with turning handle.The inner end of leading screw pressure regulation tube 2 is connected with threeway by snorkel 3, a this threeway in addition wherein end at two ends is communicated with valve on the gas-holder 1, the other end is connected with tracheae 5, this tracheae 5 extends to the below of roof box, distributing on this tracheae 5 is provided with the gas-distributing pipe 4 that is no less than four, and present embodiment is four to want root gas-distributing pipe 4.Gas-distributing pipe 4 all stretches out roof box, and be provided with the interface that can be connected in the top with sulfur hexafluoride gas density relay, each is connected with a locking pilot lamp with an alarm lamp each interface by circuit, on the gas-distributing pipe between each interface and the roof box 4 valve is arranged.Snorkel 3 in the present embodiment, tracheae 5 and gas-distributing pipe 4 are copper pipe, and the withstand voltage properties of copper pipe and Corrosion Protection are all better.Also be provided with trundle in the present embodiment at bottom half.The power supply of the utility model pilot lamp can adopt the direct supply of 9V, and the space is little, and handling safety is reliable.
The gas density relay that now with the specification is 0.5Mpa is further described as detected object, and the gas density relay of 0.5Mpa should be implemented to report to the police when 0.53Mpa, just implements blocking function when 0.5Mpa.The utility model in use, four these gas density relays are inserted in the interface by its joint respectively, open valve on the gas-holder 1 and the valve on each gas-distributing pipe 4, the sulfur hexafluoride gas in this moment gas-holder 1 just enters in the leading screw pressure regulation tube 2 by threeway and each gas-distributing pipe 4 and be communicated with gas density relay.By inside rotation turning handle piston is inwardly moved then, pressurizeed in space that gas density relay is surveyed, promptly leading screw pressure regulation tube 2 and each tracheae are pressurizeed, after making pressure surpass the alarm pressure value of gas density relay, outwards rotate turning handle again, reduced pressure in the survey space, reach the alarm pressure value and the locking force value of gas density relay successively when the force value in survey space, be 0.53Mpa and 0.5Mpa, gas density relay is just lighted alarm lamp earlier by the circuit that is connected with interface and is lighted the locking pilot lamp again, if there is the pilot lamp of not lighting to illustrate that just this gas density relay has fault.
The utility model employing lead screw transmission is carried out pressure regulation to the gas in survey space, and pressure degree of regulation height can be realized pressing arbitrarily in the 0-0.6Mpa scope the accurate pressure regulation of some power values, thereby guarantee measuring accuracy.The utility model can detect a plurality of gas density relays simultaneously, work efficiency is improved a lot, the foregoing description has detected four gas density relays that specification is the same, also can detect the relay of sample diversified in specifications simultaneously, only need different warnings and locking force value observed respectively and just can.
This shows that the utlity model has simple in structurely, cost is low, and is easy to operate, can detect simultaneously a plurality of relays, the characteristics such as increase work efficiency.
Claims (3)
1. sulfur hexafluoride gas density relay testing table, it is characterized in that: comprise casing, can deposit gas-holder (1), leading screw pressure regulation tube (2), snorkel (3) and the valve of sulfur hexafluoride gas, described gas-holder (1) vertically is arranged on the casing inner bottom plating, and its top is provided with valve; Described leading screw pressure regulation tube (2) horizontally set, casing is stretched out in its outer end, piston is arranged on leading screw pressure regulation tube (2) inside and is connected with leading screw, the other end of leading screw stretches out the outer end of leading screw pressure regulation tube (2), and be connected with turning handle, the inner end of leading screw pressure regulation tube (2) is connected with threeway by snorkel (3), the in addition two ends of this a threeway wherein end are communicated with valve on the gas-holder (1), the other end is connected with tracheae (5), this tracheae (5) extends to the below of roof box, go up distribution at this tracheae (5) and be provided with the gas-distributing pipe (4) that is no less than four, gas-distributing pipe (4) all stretches out roof box, and be provided with the interface that can be connected in the top with sulfur hexafluoride gas density relay, each is connected with a locking pilot lamp with an alarm lamp each interface by circuit, on the gas-distributing pipe between each interface and the roof box (4) valve is arranged.
2. sulfur hexafluoride gas density relay testing table according to claim 1 is characterized in that: described snorkel (3), tracheae (5) and gas-distributing pipe (4) are copper pipe.
3. sulfur hexafluoride gas density relay testing table according to claim 1 is characterized in that: described bottom half is provided with trundle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201452770U CN201788260U (en) | 2010-03-24 | 2010-03-24 | Sulfur hexafluoride gas density relay test stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201452770U CN201788260U (en) | 2010-03-24 | 2010-03-24 | Sulfur hexafluoride gas density relay test stand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201788260U true CN201788260U (en) | 2011-04-06 |
Family
ID=43820219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201452770U Expired - Fee Related CN201788260U (en) | 2010-03-24 | 2010-03-24 | Sulfur hexafluoride gas density relay test stand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201788260U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964815A (en) * | 2015-07-01 | 2015-10-07 | 许继（厦门）智能电力设备股份有限公司 | SF6 density relay pressure contact detecting device |
| CN112798398A (en) * | 2020-12-30 | 2021-05-14 | 广西电网有限责任公司电力科学研究院 | Be used for GIS density relay gas pressure testing arrangement |
-
2010
- 2010-03-24 CN CN2010201452770U patent/CN201788260U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964815A (en) * | 2015-07-01 | 2015-10-07 | 许继（厦门）智能电力设备股份有限公司 | SF6 density relay pressure contact detecting device |
| CN112798398A (en) * | 2020-12-30 | 2021-05-14 | 广西电网有限责任公司电力科学研究院 | Be used for GIS density relay gas pressure testing arrangement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20130324 |