CN200993936Y - Connection device for gas concentration calibration relay - Google Patents
Connection device for gas concentration calibration relay Download PDFInfo
- Publication number
- CN200993936Y CN200993936Y CN 200620048834 CN200620048834U CN200993936Y CN 200993936 Y CN200993936 Y CN 200993936Y CN 200620048834 CN200620048834 CN 200620048834 CN 200620048834 U CN200620048834 U CN 200620048834U CN 200993936 Y CN200993936 Y CN 200993936Y
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- China
- Prior art keywords
- plinth
- joint
- gas density
- seal
- relay
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Abstract
The utility model relates to a relay connecting device for verifying the density of the SF[6] gas, which composes a plinth, a relay seat sealed on the plinth, a contact and a clamp nut sealed on the plinth and connected with a switch body, and a testing back valve or a testing contact sealed on the plinth. The plinth composes an adjusting bar, an air cavity, and a plurality of holes communicated with the air cavity. The holes respectively are air orifice, blow hole, communicated with the relay seat, and sensing hole for testing. The adjusting bar is able to move inward and outward, and by which an orifice, communicates the air orifice with the sensing hole, can be sealed in the air cavity. A gas density relay is connected with the relay. The blow hole is communicated with the sensing hole. The amount of the air orifice is one, and the air orifice is communicated with a contact, which is covered by the clamp nut. The contact can be arranged on whichever side of the plinth. The sensing hole on the plinth is communicated with the testing back valve or the testing contact, which can be positioned at any side of the plinth. The electricity overhauling personnel is provided with convenient operation by the connecting device.
Description
Technical field
The utility model relates to the equipment that sulfur hexafluoride gas is carried out verification, more specifically refers to a kind of jockey that is used for the verification gas density relay.
Background technology
SF
6(sulphur hexafluoride) electric switch has been widely used in power department, industrial and mining enterprises, has promoted the fast development of power industry.How to guarantee SF
6The reliable and secure operation of electric switch has become one of vital task of power department.SF
6Gas density relay is SF
6One of key element of electric switch, it is used for detecting SF
6SF in the electric switch body
6The variation of gas density, its performance quality directly has influence on SF
6The reliable and secure operation of electric switch.Be installed on on-the-spot SF
6Gas density relay is because of often action, and the phenomenon of dumb or poor contact of contacts often appears moving in after date during through one section, and what have also the temperature-compensating degradation can occur, causes SF when variation of ambient temperature easily
6The gas density relay misoperation.Therefore original power portion has formulated DL/T596-1996 " power equipment preventive trial rules ".This testing regulations regulation: each SF
6The electric switch applying unit should be regularly to SF
6Gas density relay carries out verification.From practical operation situation, to the SF at scene
6It is to prevent trouble before it happens that gas density relay carries out periodic check, ensures one of necessary means of power equipment safety reliability service.And at the scene during verification, some SF
6The gas density relay plinth of electric switch adopts the form of non-return valve to connect.Verification at present or the density monitor of changing this form switch just can only unload its three-way connection seat, and it and Switch main body are broken away from, that is: make non-return valve and non-return valve separately, because of non-return valve is the automatic non-return valve that seals, can not leak gas on the body switch.Begin verification then or change relay.In addition the relay of traditional jointing seat institute verification usually with trunnion axis in vertical state, but in actual use, the direction that also has the relay of much verifications of wanting to settle often is a horizontal axis, is parallel with the source of the gas direction promptly.How relay for this horizontal installation direction carries out verification and replacing, and the structure that then must dock headstock is improved.
In order to address the above problem, the applicant once provided two kinds of plinths (seeing Chinese patent application 200520045890.4 and 200520045891.9) that are used for the verification gas density relay, and this plinth can address the above problem, for maintenance brings convenience.But also there is the user to reflect, because present plinth sealing property is also very unreliable, owing to field condition varies, if any the plinth of special switch needs, need the better density monitor fitting joint of sealing property seat especially, this technical scheme then can not be dealt with.
Summary of the invention
The purpose of this utility model is to provide a kind of jockey that is used for the verification gas density relay, utilizes this device, not only can make the electric power overhaul personnel need not dismantle plinth, and can satisfy customer requirement, at special SF
6Use on the switch, guarantee sealing and safety.
To achieve these goals, the utility model adopts following technical scheme:
A kind of jockey that is used for the verification gas density relay, it comprise plinth, sealing and fixing on the plinth and the Relay base that is connected with gas density relay, sealing and fixing on the plinth and the joint that is connected with Switch main body and clamp nut, test non-return valve or the test splice of sealing and fixing on plinth.Comprise an adjusting rod in the described plinth, also comprise an air cavity and several holes that are communicated with air cavity in the plinth, the detection hole that they are respectively air admission hole, the air vent hole that is communicated with Relay base and are used to detect, inside and outside the moving also of described adjusting rod energy can be led to the aperture of detecting hole and air vent hole connection at the described air admission hole of air cavity inner sealing, gas density relay is connected with described Relay base, described air vent hole communication with detection hole.Described air admission hole has 1, and it is connected with joint, and is with clamp nut on the joint, and this joint can be arranged on arbitrary of plinth.Detection hole on the described plinth is connected with test non-return valve or test splice, and test non-return valve or test splice can be arranged on arbitrary of plinth.The fixedly connected seal cover in corresponding described adjusting rod outside on described plinth comprises that also at least one is located between plinth and the seal cover to form the seal of sealing again.
Described adjusting rod is to be subjected to external force movably, this adjusting rod comprises regulates head, the connector that is connected with this adjusting head, the piston that is connected with this connector, this piston head is provided with sealing gasket, be embedded sealing ring on this piston body, again, when this adjusting rod moved inward, the sealing gasket on its piston head sealed mutually with the total air admission hole of described plinth air cavity or the aperture of total venthole.
Described adjusting rod outside also is provided with a back-up ring
The direct communication with detection of described air vent hole hole, they are at the synthetic overall channel of joint pedestal internal exchange and be communicated with air cavity, and when described adjusting rod was moved into maximum position, its end face can be communicated with this overall channel the outlet sealing of air cavity.
Described Relay base has external screw thread, and is provided with groove, and seal is set on groove.
Described joint has boss, and boss is provided with groove, and on groove seal is set; Be provided with at least one seal groove in the joint outside again.
Described joint is a flange Y joint, does not have clamp nut on this flange Y joint, and this joint is provided with groove, and on groove seal is set.Again or this flange Y joint and plinth join together, form incorporate plinth.
The outside of described test non-return valve or test splice is provided with groove, and on groove seal is set, and in its outside seal closure is housed also again.
Fix with welding manner between described joint, Relay base, test non-return valve or test splice and plinth and seal.Or Relay base, test non-return valve or test splice and plinth join together, forms incorporate plinth.
Detection hole on the described plinth is connected with test non-return valve or test splice, and concrete form can variation, and when operation positiver sealing.
Owing to adopted above-mentioned technical solution, that is: during normal operating conditions, the sealing gasket of adjusting rod is not contact with the air admission hole of plinth or total venthole, and the gas circuit of air admission hole communicates with gas density relay air vent hole and detection hole; If want verification or change gas density relay, as long as adjusting rod is transferred to the end clockwise, at this moment, sealing gasket reliably contacts with the air admission hole of plinth air cavity or the aperture of total venthole, the gas circuit of air inlet does not communicate with gas density relay air vent hole and detection hole, be in the partition state, gas density relay is cut off with Switch main body on gas circuit.On gas circuit, communicate with the gas density relay air vent hole and detect the hole.So just can utilize and detect test non-return valve or the test splice that the hole is communicated with and come the verification gas density relay, equally the also replaceable gas density relay of this state.So, the utility model not only makes whole verification or changes in the process of relay, need not dismantle gas density relay or plinth, for electric power overhaul personnel's operation brings convenience, guarantee the safe handling of electric switch, and owing to adopted above-mentioned technical solution, the utility model sealing effectiveness is better, more reliable, safer, also convenient.
Description of drawings
Below, in conjunction with the accompanying drawings, provide embodiment of the present utility model:
Fig. 1 is the in running order schematic diagram of the utility model;
Fig. 2 is that the utility model is in the verification view;
Fig. 3 is the cutaway view of second embodiment of the present utility model;
Fig. 4 is the cutaway view of the 3rd embodiment of the present utility model;
Fig. 5 is the cutaway view of the 3rd embodiment of the present utility model.
Embodiment
As depicted in figs. 1 and 2, a kind of jockey that is used for the verification gas density relay, it comprise plinth 1, sealing and fixing on the plinth and the Relay base 15 that is connected with gas density relay, sealing and fixing on the plinth and the joint 16 that is connected with Switch main body and clamp nut 17, test non-return valve or the test splice 8 of sealing and fixing on plinth.Wherein Relay base 15 is connected with gas density relay 13, and device utilizes joint 16 and clamp nut 17 and Switch main body 12 to be connected and is fixed on the Switch main body 12.Comprise an adjusting rod 9 in the described plinth 1, also comprise an air cavity 11 and several holes that are communicated with air cavity 11 in the plinth 1, they are respectively air vent hole 4, detect hole 5 and air admission hole 3, and when described adjusting rod 9 was moved into maximum position, its end face can seal the inlet of air admission hole 3.Switch main body 12 is communicated with described air admission hole 3; Described air vent hole 4 communication with detection holes 5; Described adjusting rod 9 comprise regulate 91, with this adjusting connector 92 that is connected, the piston 93 that is connected with this connector, this piston head is provided with sealing gasket 931, be embedded sealing ring 932 and 933 (at least one) on these piston 93 bodies, again, when this adjusting rod 9 moved inward, the sealing gasket 931 on 93 in its piston and the aperture of described plinth air admission hole 3 be involution mutually.The fixedly connected seal cover 10 in corresponding described adjusting rod 9 outsides on plinth, sealing is covered 10 inboards and is provided with a seal 7, promptly be located between plinth and the seal cover to form the seal 7 of sealing, adjusting rod 9 outsides also are provided with a back-up ring 2, back-up ring 2 is placed in the plinth groove, plays the screens effect during to adjusting rod 9 outer moving.Detection hole 5 on the described plinth is connected with test non-return valve or test splice 8, and when operation positiver sealing, and be communicated with on the gas circuit.
During its normal operating conditions, the head of the adjusting of adjusting rod 9 91 flushes with back-up ring 2, and at this moment, sealing gasket 931 does not contact with the aperture of plinth air admission hole 3, the gas circuit of switch air inlet and gas density relay and detect the non-return valve 8 that hole 5 communicates and communicate.Wherein: between adjusting rod 9 and plinth three seals is arranged, promptly seal gas circuit, increase seal 7 and seal cover 10 sealings again, guarantee positiver sealing, be in the normal operation state, i.e. Fig. 1 with sealing ring 932 and 933.
If want verification or change gas density relay, as long as back out seal cover 10 earlier, use the screwdriver of in-line then with spanner, adjusting rod 9 is transferred to the end clockwise, be in Fig. 2 state, at this moment, the head of piston 93 aligns with line FF.At this moment, sealing gasket 931 reliably contacts with the aperture of plinth 1 air admission hole 3.The gas circuit of all air inlets of Switch main body does not communicate with the non-return valve 8 that gas density relay and detection hole communicate, and is in the partition state, and gas density relay is cut off with Switch main body on gas circuit.And non-return valve 8 communicates on gas circuit with gas density relay 13, i.e. Fig. 2.So just can utilize non-return valve 8 to come verification gas density relay 13, equally the also replaceable gas density relay 13 of this state.
In order to guarantee the sealing property of this device more, on the Relay base 15 of described device, also be provided with groove, and seal 18 is set on groove, sealing part 18 guarantees Relay base 15 and 13 sealings of SF6 gas density relay more, purpose is to increase flat seal, guarantee the sealing of whole device, guarantee reliability service; The boss of joint is provided with groove in addition, and seal 19 is set on groove, is provided with at least one seal groove in the joint outside again, and purpose is to increase flat seal, adopts the dual-seal technology, guarantees the sealing of whole device, guarantees reliability service; Also be provided with groove in addition, and seal 6 is set on groove, in its outside seal closure 14 is housed also again in the outside of test non-return valve or test splice, purpose also is to increase flat seal, adopt the dual-seal technology, guarantee the sealing of whole system, guarantee reliability service.
In order to guarantee sealing, reduce sealing surface as far as possible, fix with welding manner between joint described in the present embodiment, Relay base, test non-return valve or test splice and plinth and seal, so be that whole device sealing property is reliable more and outstanding.
Verification or change gas density relay and finish after, use a screwdriver, adjusting rod 9 inhours are transferred to Fig. 1 state, that is: its head is flushed with back-up ring 2, with spanner seal cover 10 is screwed on then and is tightened, guarantee to seal and just can.In whole like this verification or the replacing density monitor process, disengaging SF6 gas density relay or plinth just need not have been dismantled.For electric power overhaul personnel's operation brings convenience, guarantee SF
6The safe handling of electric equipment.
In the utility model, various connectivity structure can be taked in each duct, and is flexibly concrete.As second embodiment.
(see figure 3) in second embodiment, described gas density relay air vent hole 4 direct communication with detection holes 5, they are at the synthetic overall channel of joint pedestal internal exchange and be communicated with air cavity 11, when described adjusting rod 9 was moved into maximum position, its end face can be communicated with this overall channel the gas outlet sealing of air cavity.The gas circuit that makes air inlet and gas density relay and air vent hole thereof and detection hole do not communicate, and are in the partition state, and gas density relay is cut off with Switch main body on gas circuit.On gas circuit, communicate with gas density relay and detect the hole.So just can utilize and detect test non-return valve or the test splice that the hole is communicated with and come the verification gas density relay, equally the also replaceable gas density relay of this state.So, not only make in the present embodiment in the process of whole verification or replacing density monitor, need not dismantle gas density relay or plinth,, guarantee the safe handling of electric switch for electric power overhaul personnel's operation brings convenience, and owing to adopted above-mentioned technical solution, have and adopt the dual-seal technology between a lot of seals, the utility model sealing effectiveness is better, and is more reliable, safer, also convenient.
(see figure 4) in the 3rd embodiment, described joint are a flange Y joint 16, just do not have clamp nut on this flange Y joint 16, and this joint is provided with groove, and seal 19 is set on groove.Just with the direct sealing and fixing of this flange Y joint on Switch main body 12.This flange Y joint can join together with plinth in addition, forms incorporate plinth.
(see figure 5) in the 4th embodiment, described joint are a flange Y joint 16, just do not have clamp nut on this flange Y joint 16, and this joint is provided with groove, and seal 19 is set on groove.Just with the direct sealing and fixing of this flange Y joint on Switch main body 12.And this flange Y joint and plinth 1 join together, form incorporate plinth.Again and/or Relay base 15 join together with plinth 1, form incorporate plinth.
Can see from above-mentioned many embodiment, the utility model can change and more execution mode, therefore, those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating claim of the present utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, the modification of the above embodiment.As test non-return valve or test splice can be on other face of plinth.
Claims (10)
1. one kind is used for verification SF
6The jockey of gas density relay, it comprise plinth, sealing and fixing on the plinth and the Relay base that is connected with gas density relay, sealing and fixing on the plinth and the joint that is connected with Switch main body and clamp nut, test non-return valve or the test splice of sealing and fixing on plinth.Comprise an adjusting rod in the described plinth, also comprise an air cavity and several holes that are communicated with air cavity in the plinth, they are respectively air admission hole, air vent hole that is communicated with Relay base and the detection hole that is used to detect, inside and outside the moving also of described adjusting rod energy can be led to the aperture of detecting hole and air vent hole connection at the described air admission hole of air cavity inner sealing, gas density relay is connected with described Relay base, described air vent hole communication with detection hole, it is characterized in that: described air admission hole has 1, it is connected with joint, and being with clamp nut on the joint, this joint can be arranged on arbitrary of plinth; Detection hole on the described plinth is connected with test non-return valve or test splice, and test non-return valve or test splice can be arranged on arbitrary of plinth; The fixedly connected seal cover in corresponding described adjusting rod outside on described plinth comprises that also at least one is located between plinth and the seal cover to form the seal of sealing again.
2. the jockey that is used for the verification gas density relay according to claim 1, it is characterized in that, described adjusting rod is to be subjected to external force movably, this adjusting rod comprises regulates head, the connector that is connected with this adjusting head, the piston that is connected with this connector, this piston head is provided with sealing gasket, is embedded sealing ring on this piston body, again, when this adjusting rod moved inward, the sealing gasket on its piston head sealed mutually with the total air admission hole of described plinth air cavity or the aperture of total venthole.
3. the jockey that is used for the verification gas density relay according to claim 1 is characterized in that, described adjusting rod outside also is provided with a back-up ring.
4. the jockey that is used for the verification gas density relay according to claim 1 and 2, it is characterized in that, the direct communication with detection of described air vent hole hole, they are at the synthetic overall channel of joint pedestal internal exchange and be communicated with air cavity, when described adjusting rod was moved into maximum position, its end face can be communicated with this overall channel the outlet sealing of air cavity.
5. according to claim 1 and the 2 described jockeys that are used for the verification gas density relay, it is characterized in that described Relay base has external screw thread, and be provided with groove, and seal is set on groove.
6. the jockey that is used for the verification gas density relay according to claim 1 and 2 is characterized in that described Relay base has external screw thread, and is provided with groove, and seal is set on groove.
7. according to claim 1 and the 2 described jockeys that are used for the verification gas density relay, it is characterized in that described joint has boss, boss is provided with groove, and on groove seal is set; Be provided with at least one seal groove in the joint outside again.
8. according to claim 1 and the 2 described jockeys that are used for the verification gas density relay, it is characterized in that described joint is a flange Y joint, does not have clamp nut on this flange Y joint, and this joint is provided with groove, and on groove, seal is set; Or this flange Y joint and plinth join together, forms incorporate plinth.
9. according to claim 1 and the 2 described jockeys that are used for the verification gas density relay, it is characterized in that the outside of described test non-return valve or test splice is provided with groove, and on groove seal is set, and in its outside seal closure is housed also again.
10. according to claim 1 and the 2 described jockeys that are used for the verification gas density relay, it is characterized in that, fix with welding manner between described joint, Relay base, test non-return valve or test splice and plinth and seal, or Relay base, test non-return valve or test splice and plinth join together, forms incorporate plinth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620048834 CN200993936Y (en) | 2006-12-12 | 2006-12-12 | Connection device for gas concentration calibration relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620048834 CN200993936Y (en) | 2006-12-12 | 2006-12-12 | Connection device for gas concentration calibration relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200993936Y true CN200993936Y (en) | 2007-12-19 |
Family
ID=38947008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620048834 Expired - Fee Related CN200993936Y (en) | 2006-12-12 | 2006-12-12 | Connection device for gas concentration calibration relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200993936Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103366995A (en) * | 2013-08-02 | 2013-10-23 | 上海乐研电气科技有限公司 | Forming method for assembling connector of gas density relay capable of preventing misoperation |
| CN109709359A (en) * | 2019-02-25 | 2019-05-03 | 深圳供电局有限公司 | Adapter, the test splice of GIS device and GIS device |
-
2006
- 2006-12-12 CN CN 200620048834 patent/CN200993936Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103366995A (en) * | 2013-08-02 | 2013-10-23 | 上海乐研电气科技有限公司 | Forming method for assembling connector of gas density relay capable of preventing misoperation |
| CN103366995B (en) * | 2013-08-02 | 2015-03-25 | 上海乐研电气科技有限公司 | Forming method for assembling connector of gas density relay capable of preventing misoperation |
| CN109709359A (en) * | 2019-02-25 | 2019-05-03 | 深圳供电局有限公司 | Adapter, the test splice of GIS device and GIS device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071219 Termination date: 20151212 |
|
| EXPY | Termination of patent right or utility model |