CN109346954A - A kind of transformer room's temperature control automation heat dissipation circulating system - Google Patents
A kind of transformer room's temperature control automation heat dissipation circulating system Download PDFInfo
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- CN109346954A CN109346954A CN201811291624.8A CN201811291624A CN109346954A CN 109346954 A CN109346954 A CN 109346954A CN 201811291624 A CN201811291624 A CN 201811291624A CN 109346954 A CN109346954 A CN 109346954A
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- Prior art keywords
- transformer room
- air
- transformer
- centrifugal blower
- heat dissipation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformer Cooling (AREA)
Abstract
A kind of transformer room's temperature control automation heat dissipation circulating system, belongs to indoor temperature control field.A vertical equipment compartment is arranged in it outside transformer room, and a square aperture is arranged on the divider wall between equipment interval between transformer room；The air inlet of centrifugal blower, which is directly set with, to be arranged in the square aperture；During centrifugal blower, metal wind pipe and fan control module are arranged between vertical equipment interval；The air outlet of centrifugal blower is transformed into draught fan impeller axle center line into vertical configuration；By the right-angle turning in metal wind pipe, it is revised as arc pipe structure, the quarter bend occurred during air draft is reduced, reduces the loss in air flow process, improve air-flow and pass through efficiency.Hot-air is expelled directly out by its centrifugal force for passing through centrifugal blower to the maximum extent, improves the radiating efficiency of transformer room；It is too deep to can solve transformer room's depth, the problem of transformer is far from outlet and inlet blind window；It can be widely used for the design field of transformer room's cooling system.
Description
Technical field
The invention belongs to indoor temperature control field more particularly to a kind of automation heat dissipation circulating systems of for transformer room.
Background technique
With being continuously increased for the electricity consumption in the continuous improvement of Living consumption and summer life, production, power transformation
The load that the transformer stood is born also is hitting new peak.By to 35KV substation in nearly 2 years certain district center station compass of competency
Find during summer peak meeting, just there are nearly 30 main transformers to be under the operating status of overload daily every year in statistics；Wherein have
16 main transformer body upper layer oil temperatures are more than 80 degree and transmit.Therefore, the regulation of transforming plant main transformer room temperature becomes power transformation O&M and produces
One line urgent problem to be solved.
The traditional cool-down method of transformer chamber includes: at present
1. by transformer chamber's surrounding shutter shape at cross-ventilation natural cooling；
2. placing powerful fan in main transformer body surrounding, accelerate the circulation of main transformer ambient air；
3. installing fan below main transformer cooling fin, accelerate cooling fin heat of vaporization.
Existing traditional cool-down method respectively has drawback, is all unable to satisfy load sharply raised main transformer cooling demand:
The drawbacks of first method, is since transformer room's civil engineering structure is to limitation, ventilation of transformer room window effective area
It is insufficient.For transformer room's size in newly-built substation by whole building column away from being limited, the depth of some transformer rooms is too deep,
Position of the transformer far from air inlet/outlet blind window, reduces the ventilation effect around transformer.Simultaneously as transformer room top
Shutter is easy the circulation of dust stratification blocks air, but the cleaning of the safe distance because being limited between operating personnel and transformer busbar is tired
Difficulty greatly reduces the indoor air flow efficiency of main transformer.
The drawbacks of second method, is that placing fan and the start and stop of fan is required to artificially control, in the Ying Fengdu phase in summer
Between then need to set out more manpowers daily.Since the effect of fan is confined to that indoor stream of hot air is driven to turn, can not be formed cold
Thermal current exchange.And four powerful fans start simultaneously, and the heat that motor operating distributes should not be underestimated, therefore place big function
It can not achieve higher radiating efficiency while the method labor intensive of rate fan.
The drawbacks of the third method, is the fan being installed under cooling fin, and maintenance and maintenance need to be related to transformation
Secondary circuit, it is very inconvenient.Meanwhile this method can not form cold-hot air convection, cooling efficiency is not high, with maintenance
Cost is compared, and cost performance is very low.
In national standard drawing, the area for giving transformer vent window is effective area, and the area coefficient of efficiency of vent window is small
In 1.But the difference between area and effective area is not noticed in the design of existing part substation, when design, presses standard drawing
The area of middle requirement is offered to civil engineering, and the ventilation window ara of actually transformer room is contracted by again, the face of vent window
Product is unsatisfactory for the condition of transformer station high-voltage side bus.Transformer room's size in newly-built substation, away from being limited, is had by whole building column
The depth of a little transformer rooms is too deep, and position of the transformer far from air inlet/outlet blind window reduces the ventilation effect around transformer.
Though at present added by transformer room's outlet air shutter exhaust fan carry out forced ventilation, due to exhaust fan air-flow with go out
Wind shutter air-flow is mutually had a contest, and cannot effectively form cold-hot air convection, therefore the efficiency of exhaust fan does not obtain sufficiently
It plays.
Room air is heated transformer in the process of running, and hot-air, which rises, constitutes air flow with air inlet/outlet shutter
Channel, air inlet/outlet shutter height difference is bigger, and speed air flow is faster, and ventilation effect is better.But due to transformer room top hundred
Leaf window is easy the circulation of dust stratification blocks air, but the cleaning of the safe distance because being limited between operating personnel and transformer busbar is difficult,
Greatly reduce the indoor air flow efficiency of main transformer.
It is badly in need of the circulatory system of a set of transformer chamber's automatic heat radiation for adapting to above situation in real work, to realize more
Transformer chamber's cooling function of high-efficiency and economic.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of transformer room's temperature controls to automate heat dissipation circulating system.Its is right
Centrifugal fan air outlet position is improved and has been optimized, and will change originally with the air outlet of air inlet in the same horizontal line
Vertical configuration is caused, the elbow bend of metal wind pipe is changed to arc pipe structure, by the centrifugal force of blower by hot-air
It is expelled directly out, improves the efficiency of the heat dissipation of transformer chamber.
The technical scheme is that providing a kind of transformer room's temperature control automation heat dissipation circulating system, including centrifugation wind
Machine, metal wind pipe, temperature transducer and fan control module, it is characterized in that:
Temperature transducer is arranged in transformer room；
Outside transformer room be arranged a vertical equipment interval between, between the equipment interval between transformer room every
From one square aperture of setting on wall；
The air inlet of the centrifugal blower, which is directly set with, to be arranged in the square aperture；
During centrifugal blower, metal wind pipe and fan control module are arranged between vertical equipment interval；
It will be transformed into vertical configuration with the air outlet of air inlet of centrifugal fan in the same horizontal line originally, and passed through centrifugal blower
Centrifugal force hot-air is expelled directly out, improve the radiating efficiency of transformer room；
By the right-angle turning in metal wind pipe, it is revised as arc pipe structure, is occurred during reduction air draft straight
Angle is curved, reduces the loss in air flow process, improves air-flow and passes through efficiency；
During the metal wind pipe is vertically provided between equipment interval, equipment is extend out to through an arc pipe structure
Outside compartment, except the air outlet of the metal wind pipe is arranged between equipment interval.
Further, the direction perpendicular with centrifugal blower fan blade wheel central axis is arranged in the air outlet of the centrifugal blower
On.
Specifically, the mechanical air discharge rate of the centrifugal blower is calculated according to the following formula:
G4=G2* (1-k),
Wherein G4 is mechanical air discharge rate, and G2 is total exhaust air rate, and k is that nature air inlet/outlet window ara in transformer room's accounts for the gross area
Ratio can find out the mechanical air discharge rate of centrifugal blower by 1:2 value.
Specifically, by the shutter of transformer room, as the total of transformer room's temperature control automation heat dissipation circulating system
Air inlet.
Specifically, the air outlet of metal wind pipe is automated heat dissipation circulating system as transformer room's temperature control
Total gas outlet.
Further, the transformer is arranged between the square aperture on the shutter and divider wall of transformer room,
After outdoor cold air enters transformer room from shutter, pass through transformer upper space, through on divider wall square aperture, from
The air outlet of heart blower, metal wind pipe and its metal wind pipe is discharged outdoor.
Further, the top of transformer is arranged in the temperature transducer.
Compared with the prior art, the invention has the advantages that
1. being transformed into the air outlet of centrifugal blower with draught fan impeller axis into vertical configuration, pass through centrifugation wind to the maximum extent
Hot-air is expelled directly out by the centrifugal force of machine, improves the radiating efficiency of transformer room；
2. it is too deep to can solve transformer room's depth between a vertical equipment interval is arranged in transformer room side, become
The problem of depressor is far from outlet and inlet blind window；
3. the right-angle turning in metal wind pipe is revised as arc pipe structure, reduce in air flow process
Loss, improves air-flow and passes through efficiency.
Detailed description of the invention
Fig. 1 is the schematic diagram of the wind pipe structure of traditional centrifugal blower；
Fig. 2 is the schematic diagram of the wind pipe structure of centrifugal blower of the present invention；
Fig. 3 is the schematic diagram of present system structure.
1 is centrifugal blower in figure, and 1-1 is the air inlet of centrifugal blower, and 1-2 is the air outlet of centrifugal blower, and 2 go out for metal
Air piping, 2-1 are right-angle type right-angle turning, and 2-2 is arc pipe structure, and 3 be divider wall, and 4 be transformer room, and 5 open to be rectangular
Mouthful, 6 be the air outlet of metal wind pipe, and 7 be shutter.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
In Fig. 1, the air inlet 1-1 and air outlet 1-2 of traditional centrifugal blower 1 are in same horizontal line, the technical program pair
The structure of centrifugal blower is transformed.
It can know that gas concentrates on around duct wall under the influence of centrifugal force from the working principle of centrifugal blower, in sky
When encountering quarter bend in the gas process of circulation, air-flow direction, which changes, generates vortex, the increased friction of air and pipeline.Directly
The curved resistance to gas in angle becomes larger, and causes to lose increase along stroke pressure.
Calculation shows that right angle air duct will lead to vent flow reduction 20%, serious under identical sectional area and pressure
Loss will substantially reduce the drafting efficiency of transformer chamber.
To reduce loss, in Fig. 2, the technical program is by the air outlet knot originally with air inlet in the same horizontal line
Structure is transformed into and is arranged with the axial line of centrifugal blower fan blade wheel at vertical configuration, can reduce the right angle occurred during air draft in this way
It is curved, reduce the loss in air flow process, improves the efficiency of the heat dissipation of transformer chamber.
In Fig. 3, technical solution of the present invention provides a kind of transformer room's temperature control automation heat dissipation circulating system, including
Centrifugal blower 1, metal wind pipe 2, temperature transducer and fan control module, inventive point are:
Temperature transducer is arranged in transformer room；
It is arranged between a vertical equipment interval outside transformer room, between the equipment interval between transformer room 4
One square aperture 5 is set on divider wall 3；
The air inlet 1-1 of the centrifugal blower, which is directly set with, to be arranged in the square aperture；
During centrifugal blower, metal wind pipe and fan control module are arranged between vertical equipment interval；
Vertical configuration will be transformed into the air outlet 1-2 of air inlet of centrifugal fan 1-1 in the same horizontal line originally, by from
Hot-air is expelled directly out by the centrifugal force of heart blower, improves the radiating efficiency of transformer room；
By the right-angle turning in metal wind pipe, it is revised as arc pipe structure, is occurred during reduction air draft straight
Angle is curved, reduces the loss in air flow process, improves air-flow and passes through efficiency；
During the metal wind pipe is vertically provided between equipment interval, equipment is extend out to through an arc pipe structure
Outside compartment, except the air outlet of the metal wind pipe is arranged between equipment interval.
Further, the direction perpendicular with centrifugal blower fan blade wheel central axis is arranged in the air outlet of the centrifugal blower
On.
Specifically, the mechanical air discharge rate of the centrifugal blower is calculated according to the following formula:
G4=G2* (1-k),
Wherein G4 is mechanical air discharge rate, and G2 is total exhaust air rate, and k is that nature air inlet/outlet window ara in transformer room's accounts for the gross area
Ratio can find out the mechanical air discharge rate of centrifugal blower by 1:2 value.
Specifically, by the shutter of transformer room, as the total of transformer room's temperature control automation heat dissipation circulating system
Air inlet.
Specifically, the air outlet of metal wind pipe is automated heat dissipation circulating system as transformer room's temperature control
Total gas outlet.
Further, the transformer is arranged between the square aperture on the shutter and divider wall of transformer room,
After outdoor cold air enters transformer room from shutter, pass through transformer upper space, through on divider wall square aperture, from
The air outlet of heart blower, metal wind pipe and its metal wind pipe is discharged outdoor.
Further, the top of transformer is arranged in the temperature transducer.
Fan control module in the technical program, by temperature sensor module, rest-set flip-flop module and vector controlled
Module composition.Wherein, temperature sensor module is responsible for detecting above transformer room (also known as transformer chamber) environment temperature and real-time
It feeds back in control loop.Rest-set flip-flop module can be realized when environment temperature rising reaches 40 degree, and control module starts wind
Machine；When environment temperature is down to 35 degree, control module closes blower.Vector control module is then to realize power of fan according to scene
Temperature height automatically adjusts.
After the technical program, for XX substation, it is close to choose temperature, load current, transformer temperature in 2 years
The comparison for carrying out main transformer room temperature for one day, it can be seen that using after this automatic heat radiation circulatory system, main transformer room temperature
It is decreased obviously, achieves preferable cooling effect and expected technical effect.
| Date | Work as daily temperature | Load current | Transformer temperature | Room temperature |
| On August 22nd, 2016 | 32℃ | 963A | 78℃ | 56℃ |
| On August 16th, 2017 | 32℃ | 958A | 68℃ | 41℃ |
Due to technical solution of the present invention, the air outlet position of centrifugal blower is improved；By in transformer room
Side is arranged between a vertical equipment interval, solves that transformer room's depth is too deep, and transformer is far from outlet and inlet blind window
Problem；Right-angle turning in metal wind pipe is revised as arc pipe structure, reduces the loss in air flow process,
Air-flow is improved by efficiency, improves the efficiency of the heat dissipation of transformer chamber.
It invention can be widely used in the design field of various ventilation of transformer room cooling systems.
Claims (7)
1. a kind of transformer room's temperature control automates heat dissipation circulating system, including centrifugal blower, metal wind pipe, temperature transducer
And fan control module, it is characterized in that:
Temperature transducer is arranged in transformer room；
It is arranged between a vertical equipment interval outside transformer room, the divider wall between the equipment interval between transformer room
One square aperture of upper setting；
The air inlet of the centrifugal blower, which is directly set with, to be arranged in the square aperture；
During centrifugal blower, metal wind pipe and fan control module are arranged between vertical equipment interval；
To vertical configuration be transformed into the air outlet of air inlet of centrifugal fan in the same horizontal line originally, by centrifugal blower from
Hot-air is expelled directly out by mental and physical efforts, improves the radiating efficiency of transformer room；
By the right-angle turning in metal wind pipe, it is revised as arc pipe structure, reduces the quarter bend occurred during air draft,
Reduce the loss in air flow process, improves air-flow and pass through efficiency；
During the metal wind pipe is vertically provided between equipment interval, equipment interval is extend out to through an arc pipe structure
Between it is outer, except the air outlet of the metal wind pipe is arranged between equipment interval.
2. transformer room's temperature control described in accordance with the claim 1 automates heat dissipation circulating system, it is characterized in that the centrifugal blower
Air outlet be arranged on the direction perpendicular with centrifugal blower fan blade wheel central axis.
3. transformer room's temperature control described in accordance with the claim 1 automates heat dissipation circulating system, it is characterized in that the centrifugation wind
The mechanical air discharge rate of machine is calculated according to the following formula:
G4=G2* (1-k),
Wherein G4 is mechanical air discharge rate, and G2 is total exhaust air rate, and k is the ratio that nature air inlet/outlet window ara in transformer room's accounts for the gross area
Example, by 1:2 value, can find out the mechanical air discharge rate of centrifugal blower.
4. transformer room's temperature control described in accordance with the claim 1 automates heat dissipation circulating system, it is characterized in that by transformer room
Shutter, total air inlet as transformer room's temperature control automation heat dissipation circulating system.
5. transformer room's temperature control described in accordance with the claim 1 automates heat dissipation circulating system, it is characterized in that by metal discharge pipe
The air outlet in road, total gas outlet as transformer room's temperature control automation heat dissipation circulating system.
6. transformer room's temperature control described in accordance with the claim 1 automates heat dissipation circulating system, it is characterized in that the transformer
It is arranged between the square aperture on the shutter and divider wall of transformer room, outdoor cold air enters transformer from shutter
Behind room, transformer upper space is passed through, is gone out through square aperture, centrifugal blower, metal wind pipe and its metal on divider wall
The air outlet of air piping is discharged outdoor.
7. transformer room's temperature control described in accordance with the claim 1 automates heat dissipation circulating system, it is characterized in that the thermometric passes
The top of transformer is arranged in sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811291624.8A CN109346954B (en) | 2018-10-31 | 2018-10-31 | Automatic heat dissipation circulation system of transformer room control by temperature change |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811291624.8A CN109346954B (en) | 2018-10-31 | 2018-10-31 | Automatic heat dissipation circulation system of transformer room control by temperature change |
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| Publication Number | Publication Date |
|---|---|
| CN109346954A true CN109346954A (en) | 2019-02-15 |
| CN109346954B CN109346954B (en) | 2021-02-09 |
Family
ID=65313094
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811291624.8A Active CN109346954B (en) | 2018-10-31 | 2018-10-31 | Automatic heat dissipation circulation system of transformer room control by temperature change |
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