CN115332971A - Unidirectional flow-down air supply system for transformer substation - Google Patents
Unidirectional flow-down air supply system for transformer substation Download PDFInfo
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- CN115332971A CN115332971A CN202211008638.0A CN202211008638A CN115332971A CN 115332971 A CN115332971 A CN 115332971A CN 202211008638 A CN202211008638 A CN 202211008638A CN 115332971 A CN115332971 A CN 115332971A
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- air
- air supply
- cabinet
- flow
- cooled
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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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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B5/00—Non-enclosed substations; Substations with enclosed and non-enclosed equipment
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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
- H02B7/00—Enclosed substations, e.g. compact substations
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformer Cooling (AREA)
Abstract
The invention provides a unidirectional flow-down air supply system for a transformer substation, which comprises an air conditioner host, an air supply cabinet, a static pressure box, a lower air supply main air pipe and a device cabinet to be cooled, wherein the air conditioner host is connected with the air supply cabinet through a pipeline; the air conditioner main machine is used for vaporizing the refrigerant to form cold air flow, and the cold air flows through the refrigerant pipe and is conveyed into the air supply cabinet; the air supply cabinet is used for filtering the cold air flow and adjusting the temperature, the humidity and the air volume of the cold air flow; the static pressure box is communicated with the outlet end of the air supply cabinet and is used for reducing the noise of cold air flow and improving the air supply distance; the lower air supply main air pipe is communicated with the static pressure box and the equipment cabinet to be cooled and used for conveying cold air flow flowing out of the static pressure box into the equipment cabinet to be cooled. The air conditioner main machine is used for vaporizing the refrigerant to form cold air flow and conveying the cold air flow into the equipment cabinet to be cooled so as to protect the electrified equipment in the cabinet and bring a good and stable running environment for the electrified equipment, thereby reducing the failure rate of the equipment in the cabinet and prolonging the running life of the equipment.
Description
Technical Field
The invention relates to the technical field of transformer substations, in particular to a unidirectional flow-down air supply system for a transformer substation.
Background
The line protection of the current 220kV and 110kV indoor intelligent substations adopts a downward arrangement mode, microcomputer line protection and intelligent components are all arranged in a control cubicle of a GIS distribution device room, the microcomputer protection and intelligent components have higher requirements on the operation environment, the proper operation temperature of a protection and control equipment cabinet generally does not exceed 35 ℃, if the arrangement of protection equipment and control equipment in the GIS control cubicle is intensive, the space in the cabinet is narrow, the equipment heating value is larger, the heat dissipation pressure of the GIS control cubicle body is increased, and the phenomenon of higher local temperature exists; meanwhile, due to the fact that the temperature in the GIS control cubicle is high, the live equipment is prone to overheating operation, the aging process of the live equipment is accelerated, and potential safety hazards are brought to the live equipment; and once the protection and intelligent assembly equipment arranged in the control cubicle fails, huge loss is caused, and the safe and stable operation of the power grid is directly related, so that the temperature and humidity environment control of the control cubicle is very important.
To the higher problem of temperature in the GIS collection accuse cabinet, the solution that is commonly used at present has:
1) Ventilating and cooling by adopting a fan; however, only the fan is adopted for ventilation and cooling, and the defects that the cooling effect is poor, the protection level of the fan ventilation technology is low (so that dust, moisture and corrosive gas easily enter the inside of the cabinet), dust and other dirt are easily accumulated, and the components in the cabinet are polluted, and the heat conduction effect of electrical components in the cabinet is further intensified are overcome;
2) Cooling by adopting a heat exchanger; however, the existing heat exchanger has the problems of poor cooling effect and inapplicability to high-humidity and hot areas in the south in summer;
3) Cooling by adopting a backpack air conditioner; the backpack type air conditioner is adopted for cooling, so that the problems that the energy consumption is high and the safe operation of equipment is influenced by the condensation phenomenon in the cabinet exist.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the defects of the background art are overcome, the unidirectional flow-down air supply system for the transformer substation is provided, the problems that the temperature control effect in the cabinet of the existing protection and control equipment is poor, the temperature and humidity control system has frequent faults, the operation and maintenance are weak and the like are solved, the manufacturing cost and the maintenance cost of the temperature and humidity control equipment are reduced, and a good operation environment is brought to the protection and control equipment in the cabinet.
The invention provides a unidirectional flow-down air supply system for a transformer substation, which comprises an air conditioner host, an air supply cabinet, a static pressure box, a lower air supply main air pipe and a device cabinet to be cooled, wherein the air conditioner host is connected with the air supply cabinet through a pipeline; the air conditioner main machine is used for vaporizing the refrigerant to form cold air flow, and the cold air flows through the refrigerant pipe and is conveyed into the air supply cabinet; the air supply cabinet is used for filtering cold air flow and adjusting the temperature, humidity and air volume of the cold air flow; the static pressure box is communicated with the outlet end of the air supply cabinet and is used for reducing noise and increasing air supply distance of cold air flow; and the lower air supply main air pipe is communicated with the static pressure box and the equipment cabinet to be cooled and is used for conveying the cold air flow flowing out of the static pressure box into the equipment cabinet to be cooled.
Optionally, the lower air supply main air pipe is further connected with a plurality of air supply branch pipes, one end of each air supply branch pipe, which is far away from the lower air supply main air pipe, is connected with an air diffuser air supply outlet, and cold air flow is conveyed into the equipment cabinet to be cooled through the air diffuser air supply outlet.
Optionally, a second air volume adjusting valve and a third air volume adjusting valve are sequentially arranged in each air supply branch pipe.
Optionally, the second air volume adjusting valve is set to be an electric control air volume adjusting valve structure, and the third air volume adjusting valve is set to be a manual air volume adjusting valve structure.
Optionally, the number of the air supply branch pipes is greater than or equal to the number of the equipment cabinets to be cooled.
Optionally, a first air volume adjusting valve for adjusting the air volume is further arranged in the lower air supply main air pipe, and the first air volume adjusting valve is arranged in one end of the lower air supply main air pipe close to the static pressure box.
Optionally, a temperature and humidity sensor is arranged in one end of each air supply branch pipe, which is close to the equipment cabinet to be cooled.
Optionally, the air supply cabinet comprises a box body, an air filtering component, a surface cooler, a fan component and an air quantity adjusting component, wherein the air filtering component, the surface cooler, the fan component and the air quantity adjusting component are arranged in the box body; the air filtering assembly is communicated with the refrigerant pipe and is used for filtering cold air flow; the surface cooler is communicated with the air filtering assembly and is used for treating the cold air flow to the required temperature and humidity; the fan assembly is communicated with the surface cooler and the air quantity adjusting assembly and is used for conveying cold air flow to the air quantity adjusting assembly; the air volume adjusting assembly is communicated with the static pressure box and is used for adjusting the air volume of the cold airflow conveyed into the static pressure box.
Optionally, an air exhaust structure is further arranged at the top of the equipment cabinet to be cooled.
Compared with the prior art, the invention has the following beneficial effects:
according to the unidirectional flow-down air supply system for the transformer substation, the refrigerant is vaporized through the air conditioner host to form the cold air flow, and the cold air flow is conveyed into the equipment cabinet to be cooled, so that the electrified equipment in the cabinet is protected, a good and stable operation environment is brought to the electrified equipment, the failure rate of the equipment in the cabinet is reduced, and the operation life of the equipment is prolonged; and the cold airflow is conveyed in a mode that the air supply cabinet, the static pressure box and the lower air supply main air pipe are mutually matched for conveying, so that the conveying of the cold airflow is smoother.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic diagram of a unidirectional flow down air supply system for a substation according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
fig. 3 is a partially enlarged schematic view of fig. 1 at B.
Wherein:
1. the air conditioner comprises an air conditioner host, 2, a refrigerant pipe, 3, an air supply cabinet, 3.1, a filtering section, 3.2, a surface air cooler, 3.3, a fan assembly, 3.4, an air volume adjusting assembly, 3.5, a combined air cabinet box body, 4, a static pressure box, 5, a flow adjusting valve, 6, a lower air supply main air pipe, 7, a manual air volume adjusting valve, 8, an electric control air volume adjusting valve, 9, an air supply branch pipe, 10, a temperature and humidity sensor, 11, an air supply outlet of a diffuser, 12, an orifice plate air outlet, 13 and a device cabinet to be cooled.
Detailed Description
In order to make the aforementioned objects, features, advantages, and the like of the present invention more clearly understandable, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the drawings of the present invention are simplified and are not to precise scale, and are provided only for the convenience and clarity of the description of the embodiments of the present invention; the several references in this disclosure are not limited to the particular numbers in the examples of the figures; the directions or positional relationships indicated by ' front ' middle, ' rear ' left ', right ', upper ', lower ', top ', bottom ', middle ', etc. in the present invention are based on the directions or positional relationships shown in the drawings of the present invention, and do not indicate or imply that the devices or components referred to must have a specific direction, nor should be construed as limiting the present invention.
In this embodiment:
referring to fig. 1 to 3, the unidirectional flow-down air supply system for the transformer substation provided by the invention comprises an air conditioner host 1, an air supply cabinet 3, a static pressure box 4, a lower air supply main air pipe 6 and an equipment cabinet 13 to be cooled;
the air conditioner main unit 1 is arranged outdoors, and the refrigerant vaporization is realized through the operation of the compressor, so that the purpose of reducing the local air temperature is realized through absorbing the ambient heat;
cold airflow refrigerated by the air conditioner main unit 1 is conveyed into the air supply cabinet 3 through the refrigerant pipe 2, and is conveyed into the static pressure box 4 after being filtered, subjected to temperature and humidity adjustment and subjected to air speed adjustment through the air supply cabinet 3;
the static pressure box 4 reduces the noise and increases the air supply distance for the cold air flow, and the cold air flow is conveyed into the equipment cabinet 13 to be cooled through the lower air supply main air pipe 6, so that the air cooling in the equipment cabinet 13 to be cooled is realized.
Optionally, the air conditioner main unit 1 is configured as a unit type air conditioner main unit structure, and the specific structure thereof refers to the prior art.
Optionally, the air supply cabinet 3 includes a box body 3.5, and an air filtering component 3.1, a surface air cooler 3.2, a fan component 3.3 and an air volume adjusting component 3.4 which are arranged in the box body 3.5 and connected in sequence; the cold air is filtered by the air filtering component 3.1, the cold air flow is processed to the required temperature and humidity by the surface air cooler 3.2, then the cold air flow is conveyed to the air quantity adjusting component 3.4 by the fan component 3.3, and the parameters such as the air speed and the like are adjusted by the air quantity adjusting component 3.4 and then conveyed into the static pressure box 4.
Optionally, a first air volume adjusting valve 5 for adjusting the air volume is further arranged in the lower air supply main air pipe 6, and the first air volume adjusting valve 5 is arranged in one end of the lower air supply main air pipe 6 close to the static pressure box 4, so as to adjust the air volume delivered into the lower air supply main air pipe 6 by the static pressure box 4.
Optionally, for realizing a plurality of forced air cooling of treating cooling arrangement cabinet 13 simultaneously, still be equipped with a plurality of interfaces on air supply main air duct 6 down, all be connected with air supply branch pipe 9 on a plurality of interfaces, interface, air supply branch pipe 9 and treat that cooling arrangement cabinet 13 preferred adoption one-to-one sets up, just air supply branch pipe 9 end-to-end connection air diffuser supply-air outlet 11, the cold air current in the lower air supply main air duct 6 is carried to treating the screen cabinet of cooling arrangement cabinet 13 in through air supply branch pipe 9, and the cooling is nearby, reaches the best operational environment in the messenger treats cooling arrangement cabinet 13. Preference is given here to: the interfaces and the air supply branch pipes 9 are arranged in a one-to-one correspondence mode, and the number of the interfaces and the number of the air supply branch pipes 9 is larger than or equal to that of the equipment cabinets to be cooled 13, so that the one-way flow-down air supply system can be also suitable for the transformer substation when the equipment cabinets to be cooled 13 are improved (such as the number of the equipment cabinets to be cooled is increased).
Optionally, in order to adjust the amount of cold airflow delivered into each equipment cabinet 13 to be cooled, a second air volume adjusting valve 8 and a third air volume adjusting valve 7 are sequentially arranged in each air supply branch pipe 9. Preference is given here to: the second air volume adjusting valve 8 is preferably set to be of an electric control air volume adjusting valve structure, and the third air volume adjusting valve 7 is preferably set to be of a manual air volume adjusting valve structure.
Optionally, in order to effectively detect the temperature and humidity in each equipment cabinet 13 to be cooled in real time, a temperature and humidity sensor 10 is arranged in one end of each air supply branch pipe 9 close to the equipment cabinet 13 to be cooled (or extending into the equipment cabinet 13 to be cooled), the temperature and humidity sensor 10 transmits the temperature and humidity detection data in each equipment cabinet 13 to be cooled to a control system of the air conditioner host 1, and the control system adjusts a control strategy according to the temperature and humidity data, adjusts the power of a compressor and the flow of a refrigerant, matches the end load requirement, and thus automatically adjusts the output capacity of the air conditioner host.
Optionally, a pore plate air outlet 12 is further formed in the top of the equipment cabinet 13 to be cooled, and is used for discharging heat in the equipment cabinet 13 to be cooled to the outside of the equipment cabinet 13 to be cooled.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A unidirectional flow-down air supply system for a transformer substation is characterized by comprising an air conditioner host (1), an air supply cabinet (3), a static pressure box (4), a lower air supply main air pipe (6) and a device cabinet (13) to be cooled;
the air conditioner main unit (1) is used for vaporizing a refrigerant to form cold air flow, and the cold air flows through the refrigerant pipe (2) and is conveyed into the air supply cabinet (3);
the air supply cabinet (3) is used for filtering cold air flow and adjusting the temperature, humidity and air volume of the cold air flow;
the static pressure box (4) is communicated with the outlet end of the air supply cabinet (3) and is used for reducing the noise of cold air flow and improving the air supply distance;
and the lower air supply main air pipe (6) is communicated with the static pressure box (4) and the equipment cabinet (13) to be cooled and is used for conveying cold air flow flowing out of the static pressure box (4) into the equipment cabinet (13) to be cooled.
2. The unidirectional flow-down air supply system for the transformer substation according to claim 1, wherein a plurality of air supply branch pipes (9) are further connected to the lower air supply main air pipe (6), one end of each air supply branch pipe (9) far away from the lower air supply main air pipe (6) is connected with an air diffuser air supply outlet (11), and cold air flow is conveyed into the equipment cabinet (13) to be cooled through the air diffuser air supply outlet (11).
3. The unidirectional flow-down air supply system for the transformer substation according to claim 2, wherein a second air volume adjusting valve (8) and a third air volume adjusting valve (7) are sequentially arranged in each air supply branch pipe (9).
4. The unidirectional flow-down air supply system for the substation of claim 3, wherein the second air volume adjusting valve (8) is provided in an electrically controlled air volume adjusting valve structure, and the third air volume adjusting valve (7) is provided in a manual air volume adjusting valve structure.
5. A unidirectional flow-down air supply system for substations according to any one of claims 2-4, characterized in that the number of supply branch pipes (9) is greater than or equal to the number of equipment cabinets (13) to be cooled.
6. The unidirectional flow-down air supply system for the transformer substation according to claim 5, wherein a first air volume adjusting valve (5) for adjusting the air volume is further arranged in the lower air supply main air pipe (6), and the first air volume adjusting valve (5) is arranged in one end of the lower air supply main air pipe (6) close to the static pressure box (4).
7. The unidirectional flow-down air supply system for the transformer substation according to claim 6, characterized in that a temperature and humidity sensor (10) is arranged in one end of each air supply branch pipe (9) close to the equipment cabinet (13) to be cooled.
8. The unidirectional flow-down air supply system for the substation according to claim 1 or 7, wherein the air supply cabinet (3) comprises a box body (3.5), and an air filtering assembly (3.1), a surface air cooler (3.2), a fan assembly (3.3) and an air quantity adjusting assembly (3.4) which are arranged in the box body (3.5);
the air filtering component (3.1) is communicated with the refrigerant pipe (2) and is used for filtering cold air flow;
the surface cooler (3.2) is communicated with the air filtering component (3.1) and is used for treating cold air flow to required temperature and humidity;
the fan assembly (3.3) is communicated with the surface air cooler (3.2) and the air quantity adjusting assembly (3.4) and is used for conveying cold air flow to the air quantity adjusting assembly (3.4);
the air volume adjusting assembly (3.4) is communicated with the static pressure box (4) and is used for adjusting the air volume of cold airflow conveyed into the static pressure box (4).
9. The unidirectional flow-down air supply system for the transformer substation as claimed in claim 8, wherein an air exhaust structure is further arranged at the top of the equipment cabinet (13) to be cooled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211008638.0A CN115332971A (en) | 2022-08-22 | 2022-08-22 | Unidirectional flow-down air supply system for transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211008638.0A CN115332971A (en) | 2022-08-22 | 2022-08-22 | Unidirectional flow-down air supply system for transformer substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115332971A true CN115332971A (en) | 2022-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211008638.0A Pending CN115332971A (en) | 2022-08-22 | 2022-08-22 | Unidirectional flow-down air supply system for transformer substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115332971A (en) |
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2022
- 2022-08-22 CN CN202211008638.0A patent/CN115332971A/en active Pending
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