CN218733842U - Heat dissipation outer discharging device of high-voltage frequency converter - Google Patents
Heat dissipation outer discharging device of high-voltage frequency converter Download PDFInfo
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- CN218733842U CN218733842U CN202222837171.2U CN202222837171U CN218733842U CN 218733842 U CN218733842 U CN 218733842U CN 202222837171 U CN202222837171 U CN 202222837171U CN 218733842 U CN218733842 U CN 218733842U
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 60
- 238000007599 discharging Methods 0.000 title claims 6
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 21
- 239000010959 steel Substances 0.000 claims abstract description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 238000007689 inspection Methods 0.000 abstract description 2
- 230000009466 transformation Effects 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model relates to a heat dissipation and outward discharge device of a high-voltage frequency converter, wherein a plurality of frequency converter heat dissipation fans are arranged at the top of the high-voltage frequency converter; the top of the high-voltage frequency converter is fixedly mounted with the bottom of the heat collection fan cover through a plurality of support columns, and the height of each support column is greater than that of the heat dissipation fan of the frequency converter; the top of the heat collection fan cover is provided with an exhaust hole communicated with a heat dissipation air duct, and the heat dissipation air duct is connected to an external exhaust axial flow fan on the outer wall of the electric power chamber; and two adjacent support columns are fixedly provided with a U-shaped channel steel support which is positioned outside the support columns, and the U-shaped channel steel support is internally inserted with a plug-in type plugboard from top to bottom. The utility model solves the problems of unfavorable heat dissipation and overhigh temperature from the equipment end by adding external devices such as a heat collecting fan cover, a heat dissipation air duct and the like above the high-voltage frequency converter, and has short time for transformation, simple process and low cost; a detachable pluggable plugboard is additionally arranged between the heat collection fan cover and the high-voltage frequency converter, so that the sealing performance is good, and the inspection of a heat dissipation fan of the frequency converter is convenient.
Description
Technical Field
The utility model belongs to the technical field of the converter heat abstractor, specifically be used for optimizing the problem that high-voltage inverter room heat dissipation exists, in particular to high-voltage inverter heat dissipation is arranged device outward.
Background
In a thermal power plant, a large number of high-voltage frequency conversion devices are used, wherein the high-voltage frequency conversion devices are used for a primary air motor, a secondary air motor, a recovery water pump motor, a relay water pump motor and the like. At present, each unit is provided with two primary air fans (2600 kW three-phase asynchronous motors), the rotating speed of the motor is not adjustable, and the air quantity can be controlled only through the opening degree of an air door in production, so that a large amount of adjustment loss and electric quantity waste can be caused. In order to reduce the production cost and respond to the national policy of energy conservation and emission reduction, at the beginning of engineering design, each primary fan motor is provided with a high-voltage frequency converter with the rated capacity of 3300kVA of Shanghai electric power for frequency conversion and speed regulation to control the fan motor, so that the starting performance of equipment is greatly improved, stepless speed regulation is realized, electric energy is saved, and the aims of saving energy, reducing consumption and reducing noise pollution of the equipment are fulfilled. At present, 4 primary air fan high-voltage frequency converters are installed in a company, in the production and operation process in summer, because the heat dissipation capacity of the high-voltage frequency converters is overlarge and is far greater than the refrigerating capacity of an indoor air conditioner, the indoor high temperature causes the temperature of part of frequency converter elements to be overhigh, and the jump-stop accident can happen if measures such as temporary output reduction are not taken, so that the large operation fluctuation of a unit is caused and the stable operation safety is threatened, therefore, the measures are required to be taken to ensure the heat dissipation and cooling of a frequency converter room to ensure the safe long-period stable operation of the frequency converter.
The primary fan high-voltage frequency converter cabinet mainly comprises a frequency conversion device switching cabinet, a transformer cabinet and a converter cabinet. 5 heat dissipation fans are installed at the top of the high-voltage frequency conversion cabinet, and heat dissipation is conducted on the high-voltage frequency conversion cabinet through the heat dissipation centrifugal fan. When the output power of the frequency converter is more than 2000kW, factors such as unstable coal quality are added, so that the temperature of the unit radiating fins is basically not lower than 75 ℃. Because the temperature trip value of the radiating fins of the frequency converter unit is 85 ℃, if the output is continuously increased under the operating condition, the frequency converter trips in an overtemperature way. If all the large heat is discharged into the power room provided with the frequency converter, the indoor temperature is rapidly increased, and the normal operation of the frequency converter is seriously influenced. The heat dissipation of the high-voltage inverter is generally achieved by installing an air conditioner in the inverter room or by using a water cooling device.
The existing high-voltage frequency converter room is provided with 3 air conditioners of 30kW at present, and the room temperature still exceeds 40 ℃ in hot summer; if the air conditioner is additionally arranged, at least 5 air conditioners with the power of 30kW are converted, so that the investment cost is greatly increased. And install water cooling plant additional on high-voltage inverter, its construction degree of difficulty is great, consequently needs to design a device that can concentrate heat to arrange outward and reduce the indoor temperature of electric power.
Disclosure of Invention
The utility model discloses a solve the technical problem that exists among the well-known art and provide a high-voltage inverter heat dissipation outer device, solve the problem that the electric power indoor temperature of installation high-voltage inverter risees through the mode of installing ventilation duct additional at the converter top.
The utility model comprises the following technical scheme: a heat dissipation and discharge device of a high-voltage frequency converter is characterized in that a plurality of frequency converter heat dissipation fans are arranged at the top of the high-voltage frequency converter; the top of the high-voltage frequency converter is fixedly mounted with the bottom of the heat collection fan cover through a plurality of support columns, and the height of each support column is greater than that of the heat dissipation fan of the frequency converter; the top of the heat collection fan cover is provided with an exhaust hole communicated with a heat dissipation air duct, and the heat dissipation air duct is connected to an external exhaust axial flow fan on the outer wall of the electric power chamber; and two adjacent U-shaped channel steel supports are fixedly arranged between the support columns, the U-shaped channel steel supports are positioned outside the support columns, and plug-in plugboards are inserted into the U-shaped channel steel supports from top to bottom.
Furthermore, the size of the bottom of the heat collection fan housing is the same as the size of the top of the high-voltage frequency converter.
Furthermore, the heat-collecting fan cover is made of an iron sheet with the thickness of 0.5 mm.
Furthermore, the diameter of the exhaust hole is 0.7m.
Furthermore, an air duct expansion joint is arranged in the middle of the heat dissipation air duct, and the tail end of the heat dissipation air duct is connected with the outer air exhaust axial flow fan through a reducing flexible connection.
Furthermore, a suspender fixed on the roof of the electric power room is arranged outside the heat dissipation air duct and used for sharing the gravity of the heat dissipation air duct.
Furthermore, the outer air exhaust axial flow fan is arranged in a hole in the upper portion of the outer wall of the electric power room.
Furthermore, the lower part of the outer wall of the electric power room is provided with an air inlet, so that outdoor natural wind can be supplemented to the electric power room conveniently, and air circulation in the electric power room is promoted.
Furthermore, the vertical edge of the U-shaped channel steel bracket is fixedly arranged on the outer side of the support column, and the transverse edge of the U-shaped channel steel bracket is fixedly arranged on the outer side of the top edge of the high-voltage frequency converter.
Furthermore, a handle is arranged on the board surface of the pull-plug type plugboard, so that the pull-plug type plugboard is convenient to mount and dismount.
The utility model has the advantages and positive effect:
1. the utility model solves the problems of unfavorable heat dissipation and overhigh temperature from the equipment end by adding external devices such as a heat collection fan cover, a heat dissipation air duct and the like above the high-voltage frequency converter, can not affect the high-voltage frequency converter body, and has short time consumption, simple process and low consumption in the transformation; meanwhile, the heat dissipation device is suitable for other conditions that the indoor temperature or the self temperature of the equipment is too high due to large heat dissipation capacity of the equipment, and has popularization.
2. The utility model discloses an it inserts formula picture peg to add between thermal-arrest fan housing and the high-voltage inverter to be equipped with the detachable plug, and this kind of mode leakproofness is good, and hot-blast difficult spilling makes things convenient for the staff to patrol and examine and quick maintenance change operation to converter cooling fan moreover.
3. The utility model discloses be equipped with outer exhaust fan axial fan on the outer wall of electric power room, increased the radiating efficiency, improved heat dissipation stability.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic plan view of the top of the high voltage inverter.
In the figure, 1-high voltage frequency converter; 2-a frequency converter cooling fan; 3-a support column; 4-heat collecting fan cover; 401-air exhaust holes; 5-a heat dissipation air duct; 501-air duct expansion joint; 502-flexible connection with variable diameter; 6-U-shaped channel steel bracket; 7-a plug-in board; 701-a handle; 8-outer air exhaust axial flow fan; 9-air inlet; 10-a suspender.
Detailed Description
To further disclose the contents, features and functions of the present invention, the following examples are given in detail in conjunction with the accompanying drawings.
The embodiment is as follows: referring to the attached drawings 1-2, the top of a high-voltage frequency converter 1 is provided with five frequency converter heat dissipation fans 2; the top of the high-voltage frequency converter 1 is fixedly mounted with the bottom of a heat collection fan housing 4 through ten support columns 3, and the height of each support column 3 is greater than that of the heat dissipation fan 2 of the frequency converter; the size of the bottom of the heat collection fan housing 4 is the same as that of the top of the high-voltage frequency converter 1. The heat collecting fan cover 4 is made of an iron sheet with the thickness of 0.5 mm. The top of the heat collection fan housing 4 is provided with an air exhaust hole 401 communicated with the heat dissipation air duct 5, and the diameter of the air exhaust hole 401 is 0.7m. The heat dissipation air duct 5 is connected to an external exhaust axial flow fan 8 on the outer wall of the electric power chamber; and the outer exhaust axial flow fan 8 is arranged in a hole at the upper part of the outer wall of the electric power room. The lower part of the outer wall of the electric power room is provided with an air inlet 9, so that outdoor natural wind can be supplemented to the electric power room conveniently, and air circulation in the electric power room is promoted.
And a U-shaped channel steel bracket 6,U is fixedly arranged between every two adjacent support columns 3, the U-shaped channel steel bracket 6 is positioned outside the support columns 3, and a plug-in type plugboard 7 is inserted into the U-shaped channel steel bracket 6 from top to bottom. The vertical edge of the U-shaped channel steel bracket 6 is fixedly arranged at the outer side of the support column 3, and the transverse edge of the U-shaped channel steel bracket 6 is fixedly arranged at the outer side of the top edge of the high-voltage frequency converter 1. The handle 701 is arranged on the board surface of the plug-in type plugboard 7, so that the plug-in type plugboard 7 is convenient to mount and dismount.
An air duct expansion joint 501 is arranged in the middle of the heat dissipation air duct 5, and the tail end of the heat dissipation air duct 5 is connected with an outer air exhaust axial flow fan 8 through a reducing flexible connection 502. And a suspender 10 fixed on the roof of the electric power room is arranged outside the heat dissipation air duct 5 and used for sharing the gravity of the heat dissipation air duct 5.
The working steps are as follows:
1. firstly, various size data required in the high-voltage frequency converter 1 and the power room are measured and recorded.
2. Determining the size and the position of the pluggable plugboard 7 according to the shape of the heat-collecting fan cover 4 and the consideration of the convenience of actual inspection and maintenance; and selecting the opening position of the heat collection fan cover 4 and the opening position of the outer wall of the electric power chamber.
3. U-shaped channel steel support 6 with a proper size is manufactured by using channel steel, and U-shaped channel steel support 6 is installed after support columns 3 are installed.
4. And an outer discharge axial flow fan 8, wiring and trial operation are arranged on the outer wall.
5. And a heat collection fan cover 4 and a heat dissipation air duct 5 are installed and connected to an external exhaust axial flow fan 8 through a reducing flexible connection 502, the effect of the device is actually inspected and checked, the data temperature of the high-voltage frequency converter 1 and the change of the temperature in the power room are observed, and the successful rectification and modification are confirmed.
By adopting the design of the invention, when the outdoor environment is more than 35 ℃, the output of the high-voltage frequency converter 1 is 2200kW, the operation temperature of the equipment can be maintained below 60 ℃ of the unit radiating fins and 45 ℃ of the transformer, and the operation environment requirements of the high-voltage frequency converter on the unit radiating fins less than 85 ℃ and the transformer less than 125 ℃ are completely met. After heat dissipation, the environmental temperature in the power room can be controlled below 35 ℃, and the requirement of the high-voltage frequency converter 1 on the operating environmental temperature is met, so that the good operating environment in the power room is ensured. The device has low heat dissipation cost, high reliability and good heat dissipation effect. After the device is operated, 2 primary fan frequency converter chambers of the refrigeration air conditioners can be closed, tens of thousands of yuan of electric charge can be saved for companies one year, the equipment efficiency is improved, the production process requirements are met, the equipment maintenance and repair cost is greatly reduced, and the production stop risk is reduced.
Although the preferred embodiments of the present invention have been described, the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention. All of which fall within the scope of the present invention.
Claims (10)
1. The utility model provides a high-voltage inverter heat dissipation is arranged device outward, a plurality of converter cooling blower are equipped with at the high-voltage inverter top, its characterized in that: the top of the high-voltage frequency converter is fixedly mounted with the bottom of the heat collection fan cover through a plurality of support columns, and the height of each support column is greater than that of the heat dissipation fan of the frequency converter; the top of the heat collection fan cover is provided with an exhaust hole communicated with a heat dissipation air duct, and the heat dissipation air duct is connected to an external exhaust axial flow fan on the outer wall of the electric power chamber; and two adjacent U-shaped channel steel supports are fixedly arranged between the support columns, the U-shaped channel steel supports are positioned outside the support columns, and plug-in plugboards are inserted into the U-shaped channel steel supports from top to bottom.
2. The heat dissipation outward discharge device of the high-voltage inverter according to claim 1, characterized in that: the size of the bottom of the heat collection fan cover is the same as that of the top of the high-voltage frequency converter.
3. The heat dissipation outward discharge device of the high-voltage inverter according to claim 1, characterized in that: the heat collecting fan cover is made of iron sheet with the thickness of 0.5 mm.
4. The heat dissipation outward discharging device of the high-voltage inverter according to claim 1, wherein: the diameter of the exhaust hole is 0.7m.
5. The heat dissipation outward discharging device of the high-voltage inverter according to claim 1, wherein: the middle part of the radiating air duct is provided with an air duct expansion joint, and the tail end of the radiating air duct is connected with an outer air exhaust axial flow fan through a reducing flexible connection.
6. The heat dissipation outward discharging device of the high-voltage inverter according to claim 1, wherein: and a hanging rod fixed on the roof of the electric power room is arranged outside the heat dissipation air duct.
7. The heat dissipation outward discharging device of the high-voltage inverter according to claim 1, wherein: and the outer exhaust axial flow fan is arranged in a hole at the upper part of the outer wall of the electric power room.
8. The heat dissipation outward discharge device of the high-voltage inverter according to claim 1, characterized in that: and an air inlet is formed in the lower part of the outer wall of the electric power chamber.
9. The heat dissipation outward discharge device of the high-voltage inverter according to claim 1, characterized in that: the vertical edge of the U-shaped channel steel bracket is fixedly arranged on the outer side of the support column, and the transverse edge of the U-shaped channel steel bracket is fixedly arranged on the outer side of the top edge of the high-voltage frequency converter.
10. The heat dissipation outward-discharging device of the high-voltage frequency converter according to any one of claims 1 to 9, characterized in that: the surface of the plug-in type plug board is provided with a handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222837171.2U CN218733842U (en) | 2022-10-21 | 2022-10-21 | Heat dissipation outer discharging device of high-voltage frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222837171.2U CN218733842U (en) | 2022-10-21 | 2022-10-21 | Heat dissipation outer discharging device of high-voltage frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218733842U true CN218733842U (en) | 2023-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222837171.2U Active CN218733842U (en) | 2022-10-21 | 2022-10-21 | Heat dissipation outer discharging device of high-voltage frequency converter |
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| Country | Link |
|---|---|
| CN (1) | CN218733842U (en) |
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2022
- 2022-10-21 CN CN202222837171.2U patent/CN218733842U/en active Active
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