CN207776075U - The trapped well of transformer collection oil pit by through hole - Google Patents
The trapped well of transformer collection oil pit by through hole Download PDFInfo
- Publication number
- CN207776075U CN207776075U CN201720787426.5U CN201720787426U CN207776075U CN 207776075 U CN207776075 U CN 207776075U CN 201720787426 U CN201720787426 U CN 201720787426U CN 207776075 U CN207776075 U CN 207776075U
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- water
- well
- height
- transformer
- oil pit
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Abstract
The utility model is related to substation fields, more particularly to the trapped well of transformer collection oil pit by through hole, including well body, well body is equipped with water inlet pipe, outlet pipe and water supply pipe, the water inlet pipe is connected to transformer collection oil pit by through hole drainpipe, the water supply pipe is connected to water source, and the electrically operated valve of control water source break-make is provided on water supply pipe；Liquid level sensor is provided in well body, the liquid level sensor is for the height of water level in production wells body, the water supply pipe water inlet is higher than height where outlet pipe water outlet, outlet pipe water outlet is higher than height where lowest water level in well body, lowest water level is higher than the height of the minimum pasta of transformer collection oil pit by through hole in well body, when Accident of Transformer oil extraction, effectively transformer oil 100% can be locked in transformer oil pit, when rainfall or fire-fighting fire extinguishing, can effectively by transformer oil pit rainwater and fire water drainage smoothly drain into nearby storm sewer or surrounding body, pollution of the Accident of Transformer oil extraction to environment can effectively be reduced.
Description
Technical field
The utility model is related to substation fields, and in particular to the trapped well of transformer collection oil pit by through hole.
Background technology
It is provided according to regulation：" oil-filled electric equipments such as main transformer are answered when the oil mass of single fuel tank is in 1000kg or more
Collection oil pit by through hole and emergency oil pond are set simultaneously, and capacity is not less than 20% and maximum individual capacity of single device oil mass respectively
60%.Preferably compared with equipment out-to-out per the big 1m in side, emergency oil pond should have the function of water-oil separating, go out the length and width dimensions of collection oil pit by through hole
Mouth should be quoted from safe place.", therefore the effect of substation accident oil sump is exactly to prevent the oil-filled electric equipments such as main transformer from damaging
Afterwards, oil, which leaks, causes fire etc. to make fault spread.
But with wind energy, the exploitation of solar energy, the intelligentized substation of miniature self-service is also more and more.This kind of power transformation
The characteristics of standing is exactly to take up little area, and intelligence degree is high, substantially belongs to unattended.The quantity of transformer in substation is few, holds
Measure small, therefore transformer is that collection oil pit by through hole is often designed according to 100% transformer oil mass.The capacity of collection oil pit by through hole is very big, complete
Accident oil extraction can be stored entirely.And emergency oil pond takes up a large area in traditional substation, and transformation is also loaded in emergency oil pond
Device oil, therefore emergency oil pond should ensure that the safe distance for meeting code requirement with other constructions of structures in substation, so
Additional setting emergency oil pond is bound to extra again, causes the waste of resource.So, if being not provided with emergency oil pond, how by accident
It is current urgent problem that oil extraction, which is locked in transformer collection oil pit by through hole,.
Invention content
The purpose of this utility model is to provide a kind of block Accident of Transformer oil extraction, the small transformer collection oil pit by through hole of floor space
Trapped well.
To achieve the above object, present invention employs following technical schemes：A kind of trapped well of transformer collection oil pit by through hole, including
Well body, well body are equipped with water inlet pipe, outlet pipe and water supply pipe, and the water inlet pipe is connected to transformer collection oil pit by through hole drainpipe, institute
The water supply pipe stated is connected to water source, and the electrically operated valve of control water source break-make is provided on water supply pipe；It is provided with liquid in the well body
Level sensor, the liquid level sensor go out for the height of water level in production wells body, the water supply pipe water inlet higher than outlet pipe
Height where the mouth of a river, outlet pipe water outlet is higher than highly, lowest water level is higher than transformer in well body where lowest water level in well body
The height of the minimum pasta of collection oil pit by through hole.
Due to using the technology described above, trapped well arrangement near transformer, the water inlet pipe of trapped well and transformer collection
Puddle drainpipe connection, when transformer catches fire oil extraction, accident oil is discharged and is stored in transformer collection oil pit by through hole, in trapped well
Accident oil extraction is locked in collection oil pit by through hole by water seal.When Accident of Transformer oil extraction, can transformer oil 100% be effectively locked in change
In depressor oil pit, when rainfall or fire-fighting fire extinguishing, can effectively by transformer oil pit rainwater and fire water drainage smoothly drain into
In neighbouring storm sewer or surrounding body, pollution of the Accident of Transformer oil extraction to environment can be effectively reduced.Trapped well takes up an area face
Small, the low cost of product, construction is simple, management is convenient, solves the problems, such as that land used is nervous in substation.And what is loaded in trapped well is
Water, directly distance only meets construction distance with other constructions of structures.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Specific implementation mode
A kind of trapped well of transformer collection oil pit by through hole, including well body 10, well body 10 are equipped with water inlet pipe 11, outlet pipe 12 and mend
Water pipe 13, the water inlet pipe 11 are connected to transformer collection oil pit by through hole drainpipe, and the water supply pipe 13 is connected to water source, water supply pipe 13
On be provided with control water source break-make electrically operated valve 15；It is provided with liquid level sensor 14 in the well body 10, the level sensing
Device 14 is used to acquire the height of water level in well body 10, and 13 water inlet of water supply pipe is high higher than where 12 water outlet of outlet pipe
Degree, 12 water outlet of outlet pipe is higher than highly, lowest water level is higher than transformer oil-collecting in well body 10 where lowest water level in well body 10
Cheat the height of minimum pasta.
The end of outlet pipe 12 connects storm sewer or surrounding body nearby, and liquid level sensor 14 collects in trapped well
Height of water level be less than lowest water level when, electrically operated valve 15 open carry out moisturizing, when water level reaches the height of outlet pipe 12, electricity
Movable valve 15 is automatically closed.Trapped well is arranged near transformer, water inlet pipe 11 and the transformer collection oil pit by through hole drainpipe of trapped well
It is connected to (transformer collection oil pit by through hole drainpipe can also be used as water inlet pipe 11), when transformer catches fire oil extraction, the discharge of accident oil
And be stored in transformer collection oil pit by through hole, accident oil extraction is locked in collection oil pit by through hole by the water seal in trapped well, securely and reliably.
Trapped well is for the first time before use, by lowest water level in 13 moisturizing to well of water supply pipe.When rainfall, transformer collection oil pit by through hole
Interior rainfall is flow in well body 10 certainly by transformer collection oil pit by through hole drainpipe, when the water level in well body 10 is more than lowest water level
When, rainfall is discharged by outlet pipe 12.
The utility model is for blocking main transformer or SVG Accident of Transformer oil extractions in substation, when transformer fire row
When oily, accident oil is discharged and is stored in transformer collection oil pit by through hole, and accident oil extraction is locked in collection oil pit by through hole by the water seal in trapped well, energy
Effectively transformer oil 100% is locked in transformer oil pit.It, can be effectively by transformer oil pit when rainfall or fire-fighting fire extinguishing
Interior rainwater and fire water drainage smoothly drains into storm sewer nearby or surrounding body.Accident of Transformer oil extraction can effectively be reduced
Pollution to environment.Trapped well floor space is small in the utility model, low cost, construction is simple, and management is convenient.And trapped well
Interior loading is water, and directly distance only meets construction distance with other constructions of structures.
Difference in height between 12 water outlet of 13 water inlet of water supply pipe and outlet pipe is more than 150mm.The difference in height
Setting is the water in well body 10 can be effectively prevent to flow back, polluted source to form air partition.
Difference in height between 12 water outlet of outlet pipe and lowest water level is 300-500mm.For convenience of description, will
The difference in height is referred to as water-oil separating buffer height, and transformer catches fire, and when fire-fighting above-water method, fire water drainage passes through transformer oil-collecting
For hole drainpipe from flowing in trapped well, the h in trapped well is water-oil separating buffer height, passes through the buffering of this height, accident
Oil extraction has the time difference of water-oil separating with fire water drainage, is attached among fire water drainage to reduce accident oil extraction to greatest extent
It flow in trapped well.
In the difference in height of lowest water level and the minimum pasta of transformer collection oil pit by through hole in the well body 10 stated be 300-500mm.
The difference in height is referred to as water seal height, and according to can be calculated, calculation formula is water seal height：
ρ 1.g.h1=ρ 2.g.h2
Wherein ρ 1, h1 are respectively the density and oil reservoir height of transformer oil, and ρ 2, h2 are the density and water seal height of water.It is logical
The water seal height being calculated is crossed, 100% accident oil extraction can be completely closed off in transformer collection oil pit by through hole, to effectively reduce
Pollution of the Accident of Transformer oil extraction to environment.
The electrically operated valve 15 is motor-driven valve, liquid level sensor 14 and 15 coordinated signals of electrically operated valve, when in trapped well
Height of water level be less than lowest water level when, electrically operated valve 15 automatically turn on moisturizing, when water level reaches the height of outlet pipe 12, electricity
Movable valve 15 is automatically closed.When without rainfall without fire water drainage, due to evaporation loss, water seal height may drop the water in well body 10
It is low, when water level is less than lowest water level, electrically operated valve valve opening moisturizing is controlled by fluid level controller, waits for moisturizing to lowest water level
Afterwards, electrically operated valve is controlled by fluid level controller and closes valve stopping moisturizing.The water seal height of trapped well is effectively ensured in automatic water supplement, from
And ensure the permanently effective operation of trapped well in unattended substation
Reinforced concrete well, brick well or plastic product well can be used in the well body 10.The material of well body 10 can root
According to various regions with material can be used reinforced concrete well, brick well either plastic product well trapped well can be used rectangle, it is rectangular or circle
Shape is determined with specific reference to the horizontal layout in substation.The size of well well meets well interior conduit installation and repairing, in principle
Effective work of trapped well is only related with water seal height
The upper end of the well body 10 is equipped with inspection manhole 17.Easy access personnel enter maintenance in trapped well and safeguard well
Body 10.
Maintenance valve 16 is additionally provided on the pipeline of the water supply pipe 13, maintenance valve 16 is located at close to the side at water source,
Electrically operated valve 15 is located at close to the side of well body 10.Maintenance valve 16 and electrically operated valve 15 are placed in valve well 19, service valve
Door 16 closes water source when overhauling or replace for electrically operated valve 15.
Claims (8)
1. a kind of trapped well of transformer collection oil pit by through hole, it is characterised in that：Including well body (10), well body (10) is equipped with water inlet pipe
(11), outlet pipe (12) and water supply pipe (13), the water inlet pipe (11) are connected to transformer collection oil pit by through hole drainpipe, the benefit
Water pipe (13) is connected to water source, and the electrically operated valve (15) of control water source break-make is provided on water supply pipe (13)；The well body (10)
It is inside provided with liquid level sensor (14), which is used to acquire the height of water level in well body (10), the benefit
For water pipe (13) water inlet higher than height where outlet pipe (12) water outlet, outlet pipe (12) water outlet is minimum higher than in well body (10)
Height where water level, well body (10) interior lowest water level are higher than the height of the minimum pasta of transformer collection oil pit by through hole.
2. the trapped well of transformer collection oil pit by through hole according to claim 1, it is characterised in that：Water supply pipe (13) water inlet
Difference in height between mouth and outlet pipe (12) water outlet is more than 150mm.
3. the trapped well of transformer collection oil pit by through hole according to claim 1 or 2, it is characterised in that：The outlet pipe (12)
Difference in height between water outlet and lowest water level is 300-500mm.
4. the trapped well of transformer collection oil pit by through hole according to claim 3, it is characterised in that：It is minimum in the well body (10)
The difference in height of water level and the minimum pasta of transformer collection oil pit by through hole is 300-500mm.
5. the trapped well of transformer collection oil pit by through hole according to claim 4, it is characterised in that：The electrically operated valve (15) is
Motor-driven valve, liquid level sensor (14) and electrically operated valve (15) coordinated signals, when the height of water level in trapped well is less than lowest water level
When, electrically operated valve (15) automatically turns on moisturizing, and when water level reaches the height of outlet pipe (12), electrically operated valve (15) closes automatically
It closes.
6. the trapped well of transformer collection oil pit by through hole according to claim 5, it is characterised in that：The well body (10) can be used
Reinforced concrete well, brick well or plastic product well.
7. the trapped well of transformer collection oil pit by through hole according to claim 6, it is characterised in that：The upper end of the well body (10)
Equipped with inspection manhole (17).
8. the trapped well of transformer collection oil pit by through hole according to claim 7, it is characterised in that：The pipe of the water supply pipe (13)
Road is additionally provided with maintenance valve (16), and maintenance valve (16) is located at close to the side at water source, and electrically operated valve (15) is located at close to well
The side of body (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720787426.5U CN207776075U (en) | 2017-06-30 | 2017-06-30 | The trapped well of transformer collection oil pit by through hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720787426.5U CN207776075U (en) | 2017-06-30 | 2017-06-30 | The trapped well of transformer collection oil pit by through hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207776075U true CN207776075U (en) | 2018-08-28 |
Family
ID=63218111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720787426.5U Expired - Fee Related CN207776075U (en) | 2017-06-30 | 2017-06-30 | The trapped well of transformer collection oil pit by through hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207776075U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111429676A (en) * | 2020-03-10 | 2020-07-17 | 国网浙江省电力有限公司金华供电公司 | Oil leakage monitoring system and accident oil pool structure of transformer substation |
-
2017
- 2017-06-30 CN CN201720787426.5U patent/CN207776075U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111429676A (en) * | 2020-03-10 | 2020-07-17 | 国网浙江省电力有限公司金华供电公司 | Oil leakage monitoring system and accident oil pool structure of transformer substation |
| CN111429676B (en) * | 2020-03-10 | 2025-02-14 | 国网浙江省电力有限公司金华供电公司 | An oil leakage monitoring system and accident oil pool structure for a substation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180828 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |