CN206639676U - Transformer breathing circuit protection device - Google Patents
Transformer breathing circuit protection device Download PDFInfo
- Publication number
- CN206639676U CN206639676U CN201720415285.4U CN201720415285U CN206639676U CN 206639676 U CN206639676 U CN 206639676U CN 201720415285 U CN201720415285 U CN 201720415285U CN 206639676 U CN206639676 U CN 206639676U
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- CN
- China
- Prior art keywords
- transformer
- breathing circuit
- protection device
- pressure
- circuit protection
- 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.)
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- 230000029058 respiratory gaseous exchange Effects 0.000 title claims abstract description 32
- 238000013268 sustained release Methods 0.000 claims description 4
- 239000012730 sustained-release form Substances 0.000 claims description 4
- 229910001369 Brass Inorganic materials 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010951 brass Substances 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 230000007257 malfunction Effects 0.000 abstract description 4
- 230000002459 sustained effect Effects 0.000 abstract description 4
- 230000001154 acute effect Effects 0.000 abstract description 2
- 241000196324 Embryophyta Species 0.000 description 16
- 230000000903 blocking effect Effects 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000002274 desiccant Substances 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- 229960001866 silicon dioxide Drugs 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 206010020852 Hypertonia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
A kind of field transformer protection device is the utility model is related to, is specifically the protection device of transformer breathing circuit.There is the cylinder of flange respectively including both ends, the transformer breathing circuit protection device is serially connected in transformer breathing circuit by flange, in addition to the malleation release device and negative pressure breaking plant being separately positioned on cylinder；The malleation release device can be opened when reaching malleation setting value, and pressure is closed after reducing；The negative pressure breaking plant can be opened when reaching negative pressure setting value, be closed after pressure rise.When respirator blocks, by malleation release device, the gas in transformer is discharged, by negative pressure breaking plant, the gas in the external world is sucked, avoids causing transformer body malfunction to alarm.Pressure relief valve is manually sustained, oil level in transformer can be avoided acute variation occur, avoids causing secondary wrong report.By the air gauge with electric contact, unidirectional audible-visual annunciator, staff's respirator can be reminded to break down in time.
Description
Technical field
A kind of field transformer protection device is the utility model is related to, is specifically the protection dress of transformer breathing circuit
Put.
Background technology
Transformer is primary equipment important in power system, because it is as the special of voltage transformation point and electric energy Rendezvous Point
Effect, its stable operation directly affect power grid security.The oil-filled equipment of transformer has respirator（Dehydrating breather）, main function is
Air is by respirator and extraneous UNICOM in holding transformer body, for adjusting the air pressure in transformer.Breathing apparatus
There is dehumidifying, outside air is entered before transformer, is dried first by respirator, subsequently into inside transformer,
Keep the good insulation degree of inside transformer.
With actual use for many years, under conditions of a variety of environment, a variety of weathers, reality gradually goes out more next respirator
More important effect.The silica-gel desiccant of especially respirator forms airway blockage because of many reasons, causes in transformer
The gas unsmooth breath in portion, so as to cause the overall main body protection structure malfunction of transformer, or even forced outage.This phenomenon tool
There is the trend increased, not only have impact on production, the life and work of society, and the serious general safety for threatening power network fortune
OK.
The reason for respirator blocks has a lot, such as the suddenly change of environment, especially temperature, the change of humidity cause to exhale
The drying saturation of haustorium, either because low temperature reason causes respirator surface to freeze or there have impurity to enter respirator to be medium
Deng.Therefore, in terms of respirator structure in itself, it is difficult to which the situation for avoiding blocking occurs.
In power system, there is strict repair schedule, but because the factor such as geographical position of weather, transformer, is examined
Obstruction occurs in the plan of repairing, cause change respirator in drier not in time, this be also respirator block, cause threaten power network
An other major reason for safe operation.In addition, respirator of the prior art, its silica-gel desiccant absorb moisture it
Afterwards, discoloration can be produced, in the work of maintenance, is changed colour with this to judge whether to need to change drier.But drier
Because the humidity change of air, the change of its color is not linear, so, maintainer is difficult timely to judge whether to need
Change drier.
Therefore, it is necessary to find a kind of dry in it can not find respirator blocking in time, respirator can not be changed in time
On the premise of agent, ensure the device of transformer safety work, the device should can pass through other under conditions of airway blockage
Mode keeps the pressure balance in transformer, simultaneously, additionally it is possible to helps maintainer to judge whether to need the dress for changing drier
Put.
Utility model content
The utility model is directed to problems of the prior art, have developed a kind of protection device, is discharged, born by malleation
Crush badly to ensure air pressure balance in the breathing circuit after blocking, and remind maintainer to need by way of sound and light alarm
Change drier.
The technical solution of the utility model is as follows：
Transformer breathing circuit protection device, including both ends have the cylinder of flange, the transformer breathing circuit respectively
Protection device is serially connected in transformer breathing circuit by flange,
Also include the malleation release device and negative pressure breaking plant being separately positioned on cylinder；
The malleation release device can be opened when reaching malleation setting value, and pressure is closed after reducing；
The negative pressure breaking plant can be opened when reaching negative pressure setting value, be closed after pressure rise.
The beneficial effects of the utility model are：
1, when respirator blocks, by malleation release device, the gas in transformer is discharged, avoids causing transformer body
Malfunction is alarmed.
2, when respirator blocks, by negative pressure breaking plant, the gas in the external world is sucked, avoids causing transformer body malfunction
Alarm.
3, pressure relief valve is manually sustained, oil level in transformer can be avoided acute variation occur, avoids causing secondary
Wrong report.
4, by the air gauge with electric contact, unidirectional audible-visual annunciator, it can remind staff that respirator goes out in time
Existing failure.
5, the technical solution of the utility model is simple, reliable, and manufacturing cost and application cost are low, is adapted to large-scale redevelopment item
Mesh or new projects' popularization.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation that the utility model is connected on breathing circuit.
Wherein：1-1, both ends have the cylinder of flange, 1-2, pressure instrumentation, 1-3, malleation release device, 1- respectively
4th, negative pressure breaking plant, 1-5, pressure relief device, 1-6, transformer breathing circuit protection device, 1-7, respirator is sustained manually.
Embodiment
The utility model is made further instructions with embodiment below in conjunction with the accompanying drawings
Embodiment 1：
As shown in Figure 1 and Figure 2.Transformer breathing circuit protection device, including both ends have the cylinder of flange, transformation respectively
Device breathing circuit protection device is serially connected in transformer breathing circuit by flange.Also include the malleation being separately positioned on cylinder
Release device and negative pressure breaking plant；The malleation release device can open when reaching malleation setting value, after pressure reduces
Close；The negative pressure breaking plant can be opened when reaching negative pressure setting value, be closed after pressure rise.
Using independent protection device, can be transformed in existing respirator-breathing circuit-transformer device structure,
Improvement cost and application cost can be reduced while transformer safety operation is ensured.
Cylinder is connected in breathing circuit, is connected by Fa Lian with breathing circuit.For the sealing in the loop that ensures respiration, need
Set up sealing gasket.Malleation release device and negative pressure breaking plant on cylinder, it can be mechanical structure or there is inspection
The electric structures such as instrument are surveyed, consider that the malleation release device and negative pressure breaking plant of mechanical structure can meet reality from financial cost
The use demand on border.
Malleation release device and the setting value of vacuum breakdown device of vacuum are demarcated according to the model of transformer, as a rule,
When respirator blocks, the malleation in transformer reaches 10kpa, and malleation release device is opened, and the gas discharge in transformer becomes
Depressor, malleation release device is closed after pressure reduces；When negative pressure in transformer reaches 20kpa, negative pressure breaking plant is opened, outside
Portion's air is entered in transformer, and negative pressure breaking plant is closed after pressure rise.
Because respirator blocks, when negative pressure breaking plant is opened, the moisture in air（Vapor）Transformation can be entered
In device, influenceed to reduce insulation of the moisture on transformer as far as possible, further, pressure detecting instrument is set up on cylinder
Table, the pressure instrumentation are the air gauges of the positive minus of minute-pressure.Maintainer can be seen by the dial plate of pressure instrumentation
The pressure value in transformer is examined, so as to judge whether respirator blocks.
In order to find whether respirator blocks in time, preferably selection has the air gauge of two-way electric contact.Connect by electricity
Point pick-up signal carries out teletransmission, receives Pressure Alarm by monitoring station, monitoring station sends staff to be overhauled in time.
After maintainer reaches the spot, it was found that the situation that hypertonia in transformer, respirator block, but can not one
Lower sub- opening valve, air pressure moment in transformer otherwise can be caused unbalance, oil level change, cause secondary alarm or machine halt trouble.
Therefore, further, the manual sustained release pressure relief device set up on cylinder.Pressure relief device is manually sustained, can be made
Gas pressure in transformer being decreased or increased slowly, avoid oil level change.
In order to further prompt maintainer, whether respirator has blocked or had once had situation about blocking, and increases
If unidirectional audible-visual annunciator, unidirectional audible-visual annunciator includes：Manual reset switch, alarm lamp, the unidirectional sound and light alarm
Device is arranged on the export department of malleation release device and negative pressure breaking plant.In the case where respirator blocks, malleation release device
Or negative pressure breaking plant is opened, air is circulated, and the air of circulation is sprayed onto or be drawn onto manual reset switch, causes police instruction
Lamp opens flicker.After pressure in transformer is reduced or increased, malleation release device or negative pressure breaking plant are closed, now manually
Reset switch resets, but alarm lamp is still in flicker work., can be according to flicker after maintainer reaches the spot
Alarm lamp judges that malleation release device or negative pressure breaking plant were once opened, and illustrates that respirator has been blocked or once sent out
Raw situation about blocking.Unidirectionally audible-visual annunciator needs artificial playback manually at the scene, is especially confirming respirator blocking simultaneously
Silica-gel desiccant has been changed to be resetted afterwards.For the ease of finding that respirator blocks in time, multiple electricity can be selected to connect
The manual reset switch of point, and switch start when, can send alarm signal, in teletransmission to control room, timely notify
Staff reaches the spot.
According to actual environment and the design requirement of transformer breathing circuit protection device, each parts type of protection device
Number it is preferably as follows：
The malleation release device is YSF pressure relief valves.
The negative pressure breaking plant is DN15-2025 brass vacuum brakes.
The air gauge is YEN100F air gauges.
The pressure relief device of sustained release manually is DN152025 gate valves.
The cylinder is the hitch steel pipes of ∮ 200.
The present invention is described in detail above in association with accompanying drawing embodiment, those skilled in the art can be according to upper
State and bright many variations example is made to the present invention.Thus, some details in embodiment should not form limitation of the invention, this
Invention will be used as protection scope of the present invention using the scope that appended claims define.
Claims (10)
1. transformer breathing circuit protection device, including both ends have the cylinder of flange respectively, the transformer breathing circuit is protected
Protection unit is serially connected in transformer breathing circuit by flange,
It is characterized in that：
Also include the malleation release device and negative pressure breaking plant being separately positioned on cylinder；
The malleation release device can be opened when reaching malleation setting value, and pressure is closed after reducing；
The negative pressure breaking plant can be opened when reaching negative pressure setting value, be closed after pressure rise.
2. transformer breathing circuit protection device according to claim 1, it is characterised in that：The malleation release device is
YSF pressure relief valves.
3. transformer breathing circuit protection device according to claim 1, it is characterised in that：The negative pressure breaking plant is
DN15-2025 brass vacuum brakes.
4. transformer breathing circuit protection device according to claim 1, it is characterised in that：Also include being arranged on cylinder
Pressure instrumentation, the pressure instrumentation is the air gauge of the positive minus of minute-pressure.
5. transformer breathing circuit protection device according to claim 4, it is characterised in that：The air gauge has double
To electric contact.
6. transformer breathing circuit protection device according to claim 5, it is characterised in that：The air gauge is
YEN100F air gauges.
7. transformer breathing circuit protection device according to claim 1, it is characterised in that：Also include being arranged on cylinder
Manual sustained release pressure relief device.
8. transformer breathing circuit protection device according to claim 7, it is characterised in that：The pressure release dress of sustained release manually
It is DN152025 gate valves to put.
9. transformer breathing circuit protection device according to claim 1, it is characterised in that：The cylinder is the hitch of ∮ 200
Steel pipe.
10. transformer breathing circuit protection device according to claim 1, it is characterised in that：Also include unidirectional acousto-optic report
Alert device, including：Manual reset switch, alarm lamp；The manual reset switch is arranged on malleation release device and negative pressure is broken
The export department of bad device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720415285.4U CN206639676U (en) | 2017-04-20 | 2017-04-20 | Transformer breathing circuit protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720415285.4U CN206639676U (en) | 2017-04-20 | 2017-04-20 | Transformer breathing circuit protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206639676U true CN206639676U (en) | 2017-11-14 |
Family
ID=60245524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720415285.4U Active CN206639676U (en) | 2017-04-20 | 2017-04-20 | Transformer breathing circuit protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206639676U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111001274A (en) * | 2019-12-23 | 2020-04-14 | 陕西金源自动化科技有限公司 | Front-mounted multifunctional respiratory state indicating device |
-
2017
- 2017-04-20 CN CN201720415285.4U patent/CN206639676U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111001274A (en) * | 2019-12-23 | 2020-04-14 | 陕西金源自动化科技有限公司 | Front-mounted multifunctional respiratory state indicating device |
| CN111001274B (en) * | 2019-12-23 | 2021-11-05 | 陕西金源自动化科技有限公司 | Front-mounted multifunctional respiratory state indicating device |
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