CN207947218U - A kind of gas density relay - Google Patents
A kind of gas density relay Download PDFInfo
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- CN207947218U CN207947218U CN201820047721.1U CN201820047721U CN207947218U CN 207947218 U CN207947218 U CN 207947218U CN 201820047721 U CN201820047721 U CN 201820047721U CN 207947218 U CN207947218 U CN 207947218U
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- gas density
- connecting tube
- density relay
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Abstract
The utility model discloses a kind of gas density relay, including：Density monitor ontology, multiple-pass joint, equipment jointing, the first connecting tube, the second connecting tube, third connecting tube, valve seat, checkout terminal, valve, Self-sealing valve；Self-sealing valve includes：Sealing element, spool, spring, valve core case, valve body；Valve core case is arranged on valve body, and spring wrap is arranged in the outside of spool, one end of spring on valve core case, the other end of spring is arranged on spool, sealing element is arranged on spool, and spool passes through the through-hole of valve core case to be connected with valve, and the second through-hole of valve and valve seat is correspondingly arranged.The density monitor of the utility model setting can be installed in all case, when being verified, verification gas density can be carried out without installing valve type three-way joint additional, not only have the advantages that save material, cost-effective, safety and environmental protection, be conducive to promote and apply, also have many advantages, such as that its is simple in structure, craftsmanship is very good.
Description
Technical field
The utility model is related to technical field of electric power, more particularly to a kind of gas density relay.
Background technology
Sulfur hexafluoride gas density relay is for detecting the sulfur hexafluoride gas density in sulfur hexafluoride electric switch
Variation, its performance quality directly affects the reliable and secure operation of sulfur hexafluoride electric switch.It is installed on the lithium of scene
Sulphur gas density relay because infrequently acting, after one period often appearance act dumb or poor contact of contacts show
As some there is also temperature-compensating performance variation, and sulfur hexafluoride gas density relay is easy to cause when variation of ambient temperature
Device malfunctions.Therefore testing regulations regulation：Each sulfur hexafluoride electric switch should be periodically to sulfur hexafluoride gas density using unit
Relay is verified.From the point of view of practical operation situation, periodic check is carried out to the sulfur hexafluoride gas density relay at scene
It is to prevent trouble before it happens, ensures one of the necessary means of power equipment safety reliability service.Fig. 1 be the prior art gas density after
The structural schematic diagram of electric appliance, the plinth of gas density relay is the type of attachment using non-return valve in figure, verification or more
Three-way connection seat can only just be unloaded using the density monitor of non-return valve by changing, and so that it is detached from Switch main body, i.e.,：Make non-return valve and
Non-return valve separates, and then starts to verify or replace relay.Due on sulfur hexafluoride electric switch because non-return valve is self-closed
, therefore will not gas leakage.But due to that there can be the risk of damage sealing ring in disassembly process, still there can be gas leakage
Risk.In addition, in order to coordinate verification density monitor, also a kind of valve type three-way joint density monitor, leads in the market
It crosses installation three-way connection and solves the problems, such as that verification is not dismantled, but Reconstruction in field is complicated, cost is very high, and some places are not free at all
Between install valve type three-way joint additional, therefore, it is difficult to implement.
Based on the above issues, how to provide it is a kind of it is free of demolition can verification gas density relay become this field there is an urgent need for
The technical issues of solution.
Utility model content
The purpose of this utility model is to provide a kind of gas density relay, with realize need not dismounting to verify gas close
Degree.
To achieve the above object, the utility model provides a kind of gas density relay, the gas density relay packet
It includes：
Density monitor ontology, multiple-pass joint, equipment jointing, the first connecting tube, the second connecting tube, third connection
Pipe, valve seat, checkout terminal, valve, Self-sealing valve；First through hole, the second through-hole and component are provided on the valve seat；
The density monitor ontology is connected with the first connector of the multiple-pass joint, the second connector of the multiple-pass joint
It is connected with the equipment jointing by first connecting tube, the third connector of the multiple-pass joint connects by described second
Take over and be connected with the valve seat, and second connecting tube closely pass through valve seat first through hole, the 4th of the multiple-pass joint the
Connector is connected by the third connecting tube with valve seat, and Self-sealing valve is arranged in the inner cavity of the valve seat, and checkout terminal is located at Self-sealing valve
End, and be arranged on the valve seat；
The Self-sealing valve includes：Sealing element, spool, spring, valve core case, valve body；The valve core case is arranged in the valve body
On, in the outside of the spool, one end of the spring is arranged on the valve core case spring wrap, the spring it is another
One end is arranged on the spool, and the sealing element is arranged on the spool, and the spool passes through the through-hole of the valve core case
It is connected with the valve, the second through-hole of the valve and the valve seat is correspondingly arranged.
Optionally, the gas density relay further includes：
Closeouts, setting prevent gas from leaking outside in the checkout terminal for reinforcing sealing.
Optionally, the gas density relay further includes：
Self-locking connection mechanism is arranged in the checkout terminal.
Optionally, the diameter of the valve is greater than or equal to the second through-hole diameter of the valve seat, and is less than the valve seat
End intracavity diameter.
Optionally, multiple closure sealing elements are equipped between the closeouts and the checkout terminal.
Optionally, the closure sealing element is any one in rubber ring, rubber pad or O-ring.
Optionally, it is structure as a whole between the multiple-pass joint, first connecting tube and the equipment jointing.
Optionally, the checkout terminal is structure as a whole with the valve body.
Optionally, the valve uses block valve or check-valves.
Optionally, second connecting tube is metal capillary；The third connecting tube is metal tube；
Optionally, second connecting tube is arranged inside the third connecting tube.
According to specific embodiment provided by the utility model, the utility model discloses following technique effects：
The size of the density monitor and common density monitor of the utility model setting is essentially identical, can be mounted on
Any occasion can verify gas density without installing valve type three-way joint additional when carrying out density monitor verification,
Not only have the advantages that save material, cost-effective, safety and environmental protection, be conducive to promote and apply, also there is its simple in structure, craftsmanship
The advantages that very good, can overcome the problems, such as to be difficult to produce in batches in the prior art.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without having to pay creative labor, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the structural schematic diagram of the existing gas density relay of the utility model embodiment；
Fig. 2 is the utility model embodiment gas density relay working state structure schematic diagram；
Fig. 3 is that the utility model embodiment gas density relay verifies status architecture schematic diagram.
Wherein, 1, density monitor ontology, 2, multiple-pass joint, the 3, first connecting tube, 4, equipment jointing, 5, verification
End, 6, valve, 601, valve rod, 602, valve body, 7, closeouts, 8, Self-sealing valve, 801, sealing element, 802, spool, 803, bullet
Spring, 804 valve core cases, 805 valve bodies, the 9, second connecting tube, 10, third connecting tube, 11, valve seat, the 1101, second through-hole, 1102, group
Part, 12, switch gear airway, 13, relay airway, 14, verification transit joint.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
The purpose of this utility model is to provide a kind of gas density relay, with realize need not dismounting to verify gas close
Degree.
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, below in conjunction with the accompanying drawings and have
Body embodiment is described in further detail the utility model.
Fig. 2 is the utility model embodiment gas density relay working state structure schematic diagram；Fig. 3 is the utility model
Embodiment gas density relay verifies status architecture schematic diagram；As shown in Figures 2 and 3, the utility model provides a kind of gas
Density monitor, the gas density relay include：Density monitor ontology 1, multiple-pass joint 2, equipment jointing 4,
One connecting tube 3, the second connecting tube 9, third connecting tube 10, valve seat 11, checkout terminal 5, valve 6, Self-sealing valve 8；The Self-sealing valve 8 wraps
It includes：Sealing element 801, spool 802, spring 803, valve core case 804, valve body 805；First through hole, are provided on the valve seat
Two through-holes 1101 and component 1102.
The density monitor ontology 1 is connected with the first connector of the multiple-pass joint 2, and the second of the multiple-pass joint 2
Connector is connected by first connecting tube 3 with the equipment jointing 4, and the third connector of the multiple-pass joint 2 passes through institute
It states the second connecting tube 9 with the valve seat 11 to be connected, and 9 tight seal of the second connecting tube passes through the first through hole of valve seat 11,
4th connector of the multiple-pass joint 2 is connected by the third connecting tube 10 with valve seat 11, and the setting of the second connecting tube 9 exists
Inside the third connecting tube 10；Self-sealing valve 8 is arranged on the valve seat 11, and checkout terminal 5 is located at the end of Self-sealing valve 8, and sets
It sets on the valve body 805.
The valve core case 804 is arranged on the valve body 805, or the component 1102 in the inner cavity of the valve seat 11 is arranged
On, the spring 803 is wrapped in the outside of the spool 802, and one end of the spring 803 is arranged on the valve core case 804,
The other end of the spring 803 is arranged on the sealing element 801, and the sealing element 801 is arranged on the spool 802, institute
The through-hole that spool 802 is stated across the valve core case 804 is connected with the valve 6, the valve 6 and the second of the valve seat 11
Through-hole 1101 is correspondingly arranged.
Switch gear airway 12 in the utility model is the air passage inside third connecting tube 10；Relay airway
13 be the air passage inside the second connecting tube 9.
The second connector, the switchgear of equipment jointing 4, the first connecting tube 3, multiple-pass joint 2 in the utility model
Air passage 12, valve seat 11 the second through-hole 1101 be connected always in gas circuit.
First connector of density monitor ontology 1, multiple-pass joint 2 in the utility model, relay airway 13 are in gas
Road is connected always.
When the utility model works normally, density monitor ontology 1, the first connector of multiple-pass joint 2, relay airway
13, the second through-hole 1101 of valve seat 11, switch gear airway 12, the second connector of multiple-pass joint 2, the first connecting tube 3, equipment
Jointing 4 is interconnected in gas circuit.
When the utility model verifies, verification transit joint 14, relay airway 13, multiple-pass joint 2 the first connector, close
Degree relay ontology 1 is connected in gas circuit.
The utility model tonifying Qi or test micro- water when, density monitor ontology 1, multiple-pass joint 2 the first connector, relay
Air passage 13, tonifying Qi or the micro- water transit joint of test, valve seat 11 the second through-hole 1101, switch gear airway 12, connect more
First 2 the second connector, the first connecting tube 3, equipment jointing 4 are interconnected in gas circuit.
After the utility model lays down closeouts 7, it is inserted into verification transit joint 14 in checkout terminal 5, verification transit joint 14 has
One inner tube is inserted into lumens aligned spool 802 from the rear end of Self-sealing valve 8, push the spool 802 of Self-sealing valve 8 move forward setting away from
From being connected to due to spool 802 and the valve 6 of Self-sealing valve 8, and then valve 6 is pushed to move forward setpoint distance.When valve 6
After reaching setpoint distance, valve 6 blocks the second through-hole 1101 of valve seat 11, and then blocks switch gear airway 12, at this time school
It tests transit joint 14 to be interconnected with relay airway 13, density monitor ontology 1, realizes and do not have to dismounting density monitor,
The density monitor can be verified, specifically refer to Fig. 3.And after verification, verification transit joint 14 is slowly withdrawn from,
Spring 803 pushes sealing element 801 to restore to the original state, while spool 802 also restores to the original state with movable valve 6, opens the second of valve seat 11
Through-hole 1101, and then switch gear airway 12 is opened, ensure equipment jointing 4, the first connecting tube 3, switchgear ventilation
Road 12, valve seat 11 the second through-hole 1101, relay airway 13, relay ontology 1 be connected.Verification transition is slowly withdrawn to connect
First 14, until Self-sealing valve 8 is restored to original position, verification transit joint 14 is unloaded, closeouts 7 are then installed to checkout terminal 5, are made
Gas density relay is restored to normal operating conditions, as shown in Figure 2.The utility model is passed through using verification transit joint 14
Self-sealing valve 8 inside functional check end 5, and then control switch gear airway 12 with movable valve 6 and open and block, realize gas
Density monitor scene does not have to the function that dismounting can verify gas density.
The utility model can also utilize verification transit joint 14, pass through straight line and/or rotary motion functional check end 5
Self-sealing valve 8, and then control switch gear airway 12 with movable valve 6 and open and block.
The utility model can also be directly by straight line and/or the Self-sealing valve 8 at rotary motion functional check end 5, and then band
Dynamic operation valve 6 controls switch gear airway 12 and opens and block, then this citing that differs illustrates.
Density monitor ontology 1 in the utility model is used to monitor the gas density of electrical equipment.Density monitor sheet
Body 1 include shell 101, and be disposed in the housing temperature compensating element 104, pressure detecting element 103, movement 105, refer to
Needle 106, dial 107, signal generator 109 and pedestal 102, specifically refer to Fig. 1.
When electrical equipment gas leakage and when gas density value drops to alarm or locking value, the hexafluoro in electrical equipment at this time
When changing the difference for the sulfur hexafluoride gas density value that sulphur gas density value is set with density monitor in the first range of set value, i.e.,
The difference of the sulfur hexafluoride gas pressure value of sulfur hexafluoride gas pressure value and setting in electrical equipment is in the second range of set value
Interior, the contact of density monitor simultaneously sends out corresponding alarm or block signal, realizes control and monitoring electric switch equipment
In sulfur hexafluoride gas density, make electrical equipment trouble free service.
Signal generator 109 in the utility model can be microswitch or magnetic-type electrical contact；The pressure detecting
Element 103 can be that Baden pipe or bellows or Baden pipe and bellows are compound.
Gas density relay in the utility model further includes：Closeouts 7 are arranged in the checkout terminal 5, for reinforcing
Sealing, prevents gas from leaking outside, also prevents dust from entering Self-sealing valve 8.
Gas density relay in the utility model further includes：Self-locking connection mechanism, setting are used in the checkout terminal 5
In the correctness for ensuring verification, ensure that checking procedure is safe and reliable.Specifically, when verification finishes, only valve 6 sets back
It postpones, self-locking connection mechanism could be opened, and then unload checking joint, prevent gas from leaking outside.
The density monitor of the utility model further includes：Multiple sensor interfaces, respectively with gas density transmitter
Gas Density Sensor, the gas micro-water sensor with the micro- water transmitter of gas, in gas analyte sensor sensor
At least one be connected, with gas density transmitter Gas Density Sensor be used for density on-line monitoring, carry gas
The gas micro-water sensor of micro- water transmitter is used for the on-line monitoring of micro- water, and gas analyte sensor is online for decomposition product
Monitoring；Sensor interface can also be connected with other sensors, then this is not listed one by one.
Checkout terminal 5 in the utility model is for verifying, tonifying Qi, tests micro- water.
Valve 6 in the utility model is for controlling opening and blocking for switchgear vent passage.
Self-sealing valve 8 in the utility model is for tonifying Qi, the micro- water of test, and carries out verification gas density, prevents from verifying
5 gases are held to leak outside.
Sealing element 801 in the utility model Self-sealing valve 8 prevents 5 gas of checkout terminal leakage or external for sealing
Air flows into；Spool 802 is for connection to valve 6 and sealing element 801；Spring 803 is for pushing sealing element 801, making certainly
Envelope valve 8, which sets back, to be set, and sealing gas is played the role of；Valve core case 804 is for fixing Self-sealing valve 8 and spring 803.
First connector of the density monitor ontology 1 and multiple-pass joint 2 in the utility model is sealed by sealing ring
Connection or welded seal connection, connected by sealing ring it is simple and reliable, it is safe.
The diameter of the valve 6 in the utility model is greater than or equal to 1101 diameter of the second through-hole of the valve seat 11,
And less than the end intracavity diameter of the valve seat 11, the second through-hole 1101 for blocking the valve seat 11 completely in verification.
The valve 6 in the utility model can both be structure as a whole；It can also be by valve rod 601 and valve body 602
It constitutes；Valve rod 601 is connected with spool 802, can be by operating spool 802 with ovable valve stem 601, and valve body
602 main functions are for sealing and controlling opening and blocking for switchgear vent passage.
Spool 802 in the utility model uses hard sealing material.
The utility model is equipped with multiple closure sealing elements between the closeouts 7 and the checkout terminal 5, for improving
State the air-tightness between closeouts 7 and the checkout terminal 5；The closure sealing element is arbitrary in rubber ring, rubber pad or O-ring
It is a kind of.
The multiple-pass joint 2, first connecting tube 3 in the utility model and between the equipment jointing 4 both
Can be split settings, can also be structure as a whole setting；Integral structure setting improves the air-tightness of each device connection；Fission is set
It sets and is dismantled convenient for the later stage, can be convenient for changing.In addition, first connecting tube 3 in optional the utility model and described setting
It can both be integrated setting between standby jointing 4.
The checkout terminal 5 in the utility model both can be split settings with the valve body 805, valve seat 11, can be with
Be structure as a whole setting；Integral structure setting improves the air-tightness of each device connection；Split settings are dismantled convenient for the later stage.
The valve 6 in the utility model uses block valve or check-valves；The block valve includes：Ball valve, butterfly valve, lock
Valve, shut-off valve, plug valve, needle valve or diaphragm valve.It is equipped on the cut-off spool of the block valve and blocks sealing element, improved and cut
The reliability of disconnected valve.
Second connecting tube 9 in the utility model is metal capillary；The third connecting tube 10 is metal tube.Institute
It states the second connecting tube 9 to be arranged inside the third connecting tube 10, can be very good the second connecting tube 9 (capillary) of protection in this way
It will not damage.
The position of the installation position of the utility model valve 6 and checkout terminal 5, angle and direction relative to equipment jointing 4
It sets, angle and direction is various.
The utility model is had the following advantages by the way that above structure is arranged：
(1) shape of the density monitor of the utility model and common density monitor are essentially the same, are being verified
When, verification gas density can be carried out without installing valve type three-way joint additional, gas density can be verified by realizing to dismantle, thorough
Bottom overcomes the problems, such as not installing in many places greatly due to valve type three-way joint volume.
(2) the utility model simplifies the structure of Self-sealing valve 8, saves material, reduces cost and volume, has very high ring
It supports value value.
(3) the utility model improves processing performance after improvement, overcomes the problems, such as to be difficult to produce in batches.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.
Specific case used herein is expounded the principles of the present invention and embodiment, above example
Explanation be merely used to help understand the method and its core concept of the utility model；Meanwhile for the general technology of this field
Personnel, according to the thought of the utility model, there will be changes in the specific implementation manner and application range.In conclusion
The content of the present specification should not be construed as a limitation of the present invention.
Claims (11)
1. a kind of gas density relay, which is characterized in that the gas density relay includes：
Density monitor ontology, multiple-pass joint, equipment jointing, the first connecting tube, the second connecting tube, third connecting tube, valve
Seat, checkout terminal, valve, Self-sealing valve；First through hole, the second through-hole are provided on the valve seat；
The density monitor ontology is connected with the first connector of the multiple-pass joint, and the second connector of the multiple-pass joint passes through
First connecting tube is connected with the equipment jointing, and the third connector of the multiple-pass joint passes through second connecting tube
It is connected with the valve seat, and second connecting tube closely passes through the first through hole of valve seat, the 4th connector of the multiple-pass joint
It is connected with valve seat by the third connecting tube, Self-sealing valve is arranged in the inner cavity of the valve seat, and checkout terminal is located at the end of Self-sealing valve
Portion, and be arranged on the valve seat；
The Self-sealing valve includes：Sealing element, spool, spring, valve core case, valve body；The valve core case is arranged on the valve body, institute
Spring wrap is stated in the outside of the spool, one end of the spring is arranged on the valve core case, the other end of the spring
It is arranged on the spool, the sealing element is arranged on the spool, and the spool passes through through-hole and the institute of the valve core case
It states valve to be connected, the second through-hole of the valve and the valve seat is correspondingly arranged.
2. gas density relay according to claim 1, which is characterized in that the gas density relay further includes：
Closeouts, setting prevent gas from leaking outside in the checkout terminal for reinforcing sealing.
3. gas density relay according to claim 1, which is characterized in that the gas density relay further includes：
Self-locking connection mechanism is arranged in the checkout terminal.
4. gas density relay according to claim 1, which is characterized in that the diameter of the valve is greater than or equal to institute
The second through-hole diameter of valve seat is stated, and less than the end intracavity diameter of the valve seat.
5. gas density relay according to claim 2, which is characterized in that the closeouts and the checkout terminal it
Between be equipped with multiple closure sealing elements.
6. gas density relay according to claim 5, which is characterized in that the closure sealing element is rubber ring, rubber
Any one in rubber cushion or O-ring.
7. gas density relay according to claim 1, which is characterized in that the multiple-pass joint, first connection
It is structure as a whole between pipe and the equipment jointing.
8. gas density relay according to claim 1, which is characterized in that the checkout terminal is integrated with the valve body
Structure.
9. gas density relay according to claim 1, which is characterized in that the valve uses block valve or non-return
Valve.
10. gas density relay according to claim 1, which is characterized in that second connecting tube is metal capillary
Pipe；The third connecting tube is metal tube.
11. gas density relay according to claim 10, which is characterized in that second connecting tube is arranged described
Inside third connecting tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820047721.1U CN207947218U (en) | 2018-01-12 | 2018-01-12 | A kind of gas density relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820047721.1U CN207947218U (en) | 2018-01-12 | 2018-01-12 | A kind of gas density relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207947218U true CN207947218U (en) | 2018-10-09 |
Family
ID=63701695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820047721.1U Active CN207947218U (en) | 2018-01-12 | 2018-01-12 | A kind of gas density relay |
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| Country | Link |
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| CN (1) | CN207947218U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108231476A (en) * | 2018-01-12 | 2018-06-29 | 上海乐研电气有限公司 | A kind of gas density relay |
-
2018
- 2018-01-12 CN CN201820047721.1U patent/CN207947218U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108231476A (en) * | 2018-01-12 | 2018-06-29 | 上海乐研电气有限公司 | A kind of gas density relay |
| CN108231476B (en) * | 2018-01-12 | 2020-06-16 | 上海乐研电气有限公司 | Gas density relay |
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