CN210400968U - Gas collecting box gas taking device of transformer gas relay - Google Patents
Gas collecting box gas taking device of transformer gas relay Download PDFInfo
- Publication number
- CN210400968U CN210400968U CN201921168665.8U CN201921168665U CN210400968U CN 210400968 U CN210400968 U CN 210400968U CN 201921168665 U CN201921168665 U CN 201921168665U CN 210400968 U CN210400968 U CN 210400968U
- Authority
- CN
- China
- Prior art keywords
- gas
- valve
- transformer
- check valve
- oil
- 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.)
- Active
Links
- 238000000605 extraction Methods 0.000 claims abstract description 18
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 4
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 4
- 241001330002 Bambuseae Species 0.000 claims description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 4
- 239000011425 bamboo Substances 0.000 claims description 4
- 238000007599 discharging Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Abstract
The utility model discloses a gas device is got to transformer buchholz relay gas collection box relates to and gets gas device field. The gas collecting box of the existing gas relay is characterized in that the gas collecting device is multi-sided in terms of convenience and safety of the gas collecting device, and risks in negative pressure gas collection inside the transformer are not concerned. The utility model comprises an oil discharge device and an air intake auxiliary device, wherein the air intake device comprises a first check valve connected with the air intake valve, an air duct connected with the first check valve, a three-way valve connected with the air duct and an air intake cylinder connected with the three-way valve; the oil discharging device comprises a pressure gauge connected with the oil discharging valve, an oil discharging bleed-off valve connected with the pressure gauge, a second check valve connected with the oil discharging bleed-off valve, and a conduit connected to the lower end of the second check valve. The device can effectively measure the internal pressure of the transformer before oil extraction and air entraining, avoid the heavy gas maloperation risk existing in negative pressure gas extraction, improve the safety of gas extraction and avoid occurrence of artificial responsibility accidents.
Description
Technical Field
The utility model relates to a get gas device field, especially relate to a gas device is got to transformer buchholz relay gas collection box.
Background
During operation, there may be faults in the transformer, both in the form of local overheating and partial discharge, and insulating oil and solid insulating material around the fault point generate gas due to heat. When more gas is generated, the gas can move along the pipeline and finally gathers at the top of the gas collecting box. The gas relay is a protector for transformer, and is installed in the pipeline between oil tank and oil conservator of transformer, and utilizes the surge of gas or oil flow produced by internal fault of transformer to make the contact of gas relay act, and make it connect with designated control loop, and in time send out light gas signal alarm or heavy gas to automatically cut off transformer so as to prevent fault range from further expanding.
When a light gas alarm signal appears, the gas in the gas relay needs to be taken to analyze the fault reason, at the moment, the oil discharge valve of the gas collection box needs to be opened to discharge a small amount of insulating oil, and the gas in the gas relay is led to the gas collection box to be taken again. If the inside negative pressure that is in this moment of transformer, then there is the air and gets into inside the buchholz relay from the oil drain valve suck-back, leads to the risk that heavy gas action excision transformer. The gas collecting box of the existing gas relay is characterized in that the gas collecting device is multi-sided in terms of convenience and safety of the gas collecting device, and risks in negative pressure gas collection inside the transformer are not concerned.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model and the technical task that provides are perfect and improve prior art scheme, provide a transformer buchholz relay gas collection box and get gas device to prevent that the inside negative pressure of transformer from getting the risk that gas exists for the purpose. Therefore, the utility model adopts the following technical scheme.
The utility model provides a transformer gas relay gas collection box gets gas device, includes oil extraction device and gets gas auxiliary device, oil extraction device connect on the oil drain valve of gas collection box, get gas auxiliary device connect on the valve of getting of gas collection box, get and all be equipped with the check valve on gas auxiliary device and the oil extraction device with prevent that outside air from getting into inside the gas collection box when the inside negative pressure of transformer is got gas. Through setting up the check valve, can effectively prevent to get into the gas collection box because of the inside negative pressure of transformer appearance when the oil extraction bleed with get gas, prevent that inside pollution gas appearance and the inside negative pressure of transformer from getting the risk that gas exists.
As a preferable technical means: get gas device include first check valve, air duct, three-way valve and get the gas section of thick bamboo, first check valve connect on getting the gas valve, the one end and the first check valve of air duct link to each other, the other end links to each other with the three-way valve, the three-way valve with get the gas section of thick bamboo and link to each other. The gas taking device can effectively achieve gas taking, the three-way valve has three states of direct connection, bypass and cut-off, when the three-way valve is in the direct connection state, the gas taking cylinder can take a proper amount of gas, and when the three-way valve is in the bypass state, the gas in the gas taking cylinder can be discharged.
As a preferable technical means: the oil discharge device include oil extraction bleed valve, second check valve, manometer and pipe, the manometer link to each other with the oil drain valve, the second check valve link to each other with the manometer, pipe connection on the second check valve. Through the manometer, can effectively measure transformer internal pressure before the oil extraction bleed air, the heavy gas maloperation risk that exists when avoiding the negative pressure to get gas to can effectively realize the oil extraction.
As a preferable technical means: the air intake cylinder is a needle cylinder. The syringe is used universally, the cost is low and the operation is convenient.
As a preferable technical means: the air duct and the conduit are hoses. The hose is convenient to operate and cannot be damaged due to collision.
As a preferable technical means: the air intake valve, the oil discharge valve and the oil discharge bleed valve are all stop valves. The stop valve has simple structure, low cost and convenient and fast opening and closing.
Has the advantages that: the internal pressure of the transformer can be effectively measured before oil and gas are discharged, the heavy gas misoperation risk during negative pressure gas taking is avoided, the gas taking safety is improved, and the occurrence of human responsibility accidents is avoided; the oil discharge device and the gas taking auxiliary device have simple structures, low cost and convenient operation.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1-a gas taking device; 2-auxiliary gas taking device; 3-a gas collection box; 101-a first check valve; 102-an airway tube; 103-three-way valve; 104-taking an air cylinder; 201-pressure gauge; 202-oil drainage bleed air valve; 203-a second check valve; 204-a catheter; 301-air taking valve; 302-oil drain valve.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1, a gas collecting box gas taking device of a transformer gas relay comprises an oil discharging device and a gas taking auxiliary device 2, wherein the oil discharging device is connected to an oil discharging valve 302 of a gas collecting box 3, the gas taking auxiliary device 2 is connected to a gas taking valve 301 of the gas collecting box 3, and check valves are arranged on the gas taking auxiliary device 2 and the oil discharging device to prevent external air from entering the gas collecting box 3 when negative pressure inside the transformer is used for taking gas.
In order to effectively realize air extraction, the air extraction device 1 comprises a first check valve 101, an air duct 102, a three-way valve 103 and an air extraction cylinder 104, wherein the first check valve 101 is connected to the air extraction valve 301, one end of the air duct 102 is connected with the first check valve 101, the other end of the air duct 102 is connected with the three-way valve 103, and the three-way valve 103 is connected with the air extraction cylinder 104. The gas taking device 1 can effectively achieve gas taking, the three-way valve 103 has three states of direct connection, bypass and cut-off, when the three-way valve 103 is in the direct connection state, the gas taking cylinder 104 can take a proper amount of gas, and when the three-way valve 103 is in the bypass state, the gas in the gas taking cylinder 104 can be discharged.
In order to improve the safety, the oil discharging device comprises an oil discharging bleed air valve 202, a second check valve 203, a pressure gauge 201 and a conduit 204, wherein the pressure gauge 201 is connected with the oil discharging valve 302, the second check valve 203 is connected with the pressure gauge 201, and the conduit 204 is connected with the second check valve 203. Through manometer 201, can effectively measure transformer internal pressure before the oil extraction bleed air, the heavy gas maloperation risk that exists when avoiding the negative pressure to get the gas to can effectively realize the oil extraction, the security is good.
When the oil discharge device is used, firstly, the oil discharge valve 302 is opened, the reading of the pressure gauge 201 is observed, if the pressure is positive, the oil discharge bleed valve 202 is opened to discharge oil and bleed air, and the second check valve 203 prevents air from entering the air collection box 3 to pollute the air sample in the use process.
When gas is taken, the three states of the three-way valve 103 are utilized to realize closed gas taking, and the method comprises the following specific steps:
1) the three-way valve 103 is driven to a straight-through state, the gas taking valve 301 of the gas collecting box 3 is slowly opened, and 10ml of gas is extracted by the gas taking cylinder 104;
2) the three-way valve 103 is opened to a bypass state, and the gas in the gas taking cylinder 104 is discharged;
3) the three-way valve 103 is driven to a straight-through state again, and a proper gas sample is extracted;
4) the three-way valve 103 is turned to a cut-off state, and gas taking is finished.
In this example, the air intake cylinder 104 is a syringe. The syringe is used universally, the cost is low and the operation is convenient.
In this example, airway tube 102 and conduit 204 are both flexible tubes. The hose is convenient to operate and cannot be damaged due to collision.
In this example, the air intake valve 301, the oil discharge valve 302 and the oil discharge bleed valve 202 are all shut-off valves. The stop valve has simple structure, low cost and convenient and fast opening and closing.
In this example, the pressure gauge 201 is a vacuum pressure gauge.
The gas collecting box gas collecting device of transformer gas relay shown in the above figure 1 is the concrete embodiment of the utility model, which embodies the substantial features and progress of the utility model, can be according to the actual use needs, under the inspiration of the utility model, the equivalent modification of aspects such as shape, structure and the like is carried out to the gas collecting box gas collecting device, and all the protection scope of the scheme is arranged.
Claims (6)
1. The utility model provides a transformer gas relay gas collection box gets gas device, includes oil discharge device and gets gas auxiliary device (2), oil discharge device connect on oil drain valve (302) of gas collection box (3), get gas auxiliary device (2) connect on getting pneumatic valve (301) of gas collection box (3), its characterized in that: get gas auxiliary device (2) and oil discharge device on all be equipped with the check valve in order to prevent that outside air from getting into gas collection box (3) inside when the inside negative pressure of transformer is got gas.
2. The gas collecting box gas taking device of the transformer gas relay as claimed in claim 1, wherein: get gas device (1) include first check valve (101), air duct (102), three-way valve (103) and get gas section of thick bamboo (104), first check valve (101) connect on getting gas valve (301), one end and first check valve (101) of air duct (102) link to each other, the other end links to each other with three-way valve (103), three-way valve (103) link to each other with getting gas section of thick bamboo (104).
3. The gas collecting box gas taking device of the transformer gas relay as claimed in claim 2, wherein: the oil drain device include oil extraction bleed valve (202), second check valve (203), manometer (201) and pipe (204), manometer (201) link to each other with oil drain valve (302), second check valve (203) link to each other with manometer (201), pipe (204) connect on second check valve (203).
4. The gas collecting box gas taking device of the transformer gas relay as claimed in claim 2, wherein: the gas taking cylinder (104) is a needle cylinder.
5. The gas collecting box gas taking device of the transformer gas relay as claimed in claim 3, wherein: the air duct (102) and the conduit (204) are both hoses.
6. The gas collecting box gas taking device of the transformer gas relay as claimed in claim 3, wherein: the air intake valve (301), the oil discharge valve (302) and the oil discharge bleed valve (202) are all stop valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921168665.8U CN210400968U (en) | 2019-07-24 | 2019-07-24 | Gas collecting box gas taking device of transformer gas relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921168665.8U CN210400968U (en) | 2019-07-24 | 2019-07-24 | Gas collecting box gas taking device of transformer gas relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210400968U true CN210400968U (en) | 2020-04-24 |
Family
ID=70357888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921168665.8U Active CN210400968U (en) | 2019-07-24 | 2019-07-24 | Gas collecting box gas taking device of transformer gas relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210400968U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111781034A (en) * | 2020-07-01 | 2020-10-16 | 广东电网有限责任公司 | Gas extraction device and gas extraction method of gas relay |
| CN111795868A (en) * | 2020-07-08 | 2020-10-20 | 广东电网有限责任公司 | Gas collecting device and using method thereof |
| CN114255634A (en) * | 2021-11-09 | 2022-03-29 | 深圳供电局有限公司 | Gas taking device, gas taking method and teaching device |
-
2019
- 2019-07-24 CN CN201921168665.8U patent/CN210400968U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111781034A (en) * | 2020-07-01 | 2020-10-16 | 广东电网有限责任公司 | Gas extraction device and gas extraction method of gas relay |
| CN111795868A (en) * | 2020-07-08 | 2020-10-20 | 广东电网有限责任公司 | Gas collecting device and using method thereof |
| CN111795868B (en) * | 2020-07-08 | 2022-04-12 | 广东电网有限责任公司 | Gas collecting device and using method thereof |
| CN114255634A (en) * | 2021-11-09 | 2022-03-29 | 深圳供电局有限公司 | Gas taking device, gas taking method and teaching device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210400968U (en) | Gas collecting box gas taking device of transformer gas relay | |
| CN107478983A (en) | A kind of online verifying attachment of main transformer Buchholz relay and its method for inspection | |
| CN104083996B (en) | A kind of dried-air drier fault automatic processing device and processing method | |
| CN102721541B (en) | Steam extraction check valve of steam turbine shut-in time method of testing | |
| CN214093556U (en) | Automatic exhaust device for lithium battery solution pipeline | |
| CN106870942A (en) | A kind of pipe pressure type flame proof valve | |
| CN107327583A (en) | Gas charge valve | |
| CN203979895U (en) | A kind of testing apparatus of pipe pressurized plugging effect | |
| CN106759779B (en) | A kind of online blowdown apparatus and online method for discharging pollution applied to gas pipeline yard | |
| CN206956213U (en) | Monocrystalline silicon growing furnace vacuum pipe oxide removal system | |
| CN110726510A (en) | Hydraulic mechanism capable of checking pressure gauge without power outage and checking method thereof | |
| CN206262289U (en) | One kind unloads grey preventing clogging up device | |
| CN204692720U (en) | Valve gas-liquid linkage actuator | |
| CN205331700U (en) | Large -scale gas piping gas water seal structure | |
| CN104165731A (en) | Automatic pressure test machine for horizontal type collector flow channel | |
| CN206626404U (en) | A kind of pipe pressure type flame proof valve | |
| CN106989276B (en) | A kind of on-line automatic method for discharging pollution of gas pipeline yard | |
| CN206723841U (en) | A kind of on-line automatic blowdown apparatus of gas pipeline yard | |
| CN203971704U (en) | A kind of dried-air drier fault automatic processing device | |
| CN205297995U (en) | Vacuum test device | |
| CN208900252U (en) | Automatic-discharging control system for electricity generation system | |
| CN205208148U (en) | Automatic judge exhaust -gas treatment pipe blockage's device | |
| CN203672580U (en) | Negative-pressure detection device for air leakage of housing of electric precipitator | |
| CN203067916U (en) | Check valve with detection function | |
| CN101191575A (en) | Leakage connection pipe segment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |