Comprehensive treatment device for operation air environment of transformer substation switch room

Abstract

The utility model discloses a comprehensive treatment device for the operation air environment of a switch room of a transformer substation, which relates to the technical field of comprehensive treatment of the air environment and comprises a dehumidification cabin arranged in the switch room of the transformer substation, and an air feeder for feeding humid air into the dehumidification cabin is arranged on the dehumidification cabin. A first-stage dehumidification bin, a second-stage dehumidification bin and a third-stage dehumidification bin which are used for dehumidifying humid air are arranged in the dehumidification cabin; according to the comprehensive treatment device for the operation air environment of the transformer substation switch room, humid air in the transformer substation switch room is fed into the dehumidification cabin through the arranged air feeder, dehumidification work of the humid air is achieved through the first-stage dehumidification cabin, the second-stage dehumidification cabin and the third-stage dehumidification cabin, and the transformer substation switch room can be always in a dry environment; and moist air can be effectively prevented from entering the armored switch cabinet from the bottom of the switch cabinet, so that condensation on the surface of high-voltage electrical equipment is effectively prevented, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of comprehensive air environment management, in particular to a comprehensive air environment management device for a switch room of a transformer substation. Background Art

[0002] Substation is a place in the power system that transforms voltage, receives and distributes electric energy, controls current and adjusts voltage. It connects power grids of various voltage levels through transformers and is a gathering point for power transmission and distribution. Copy; Cable trench is an underground pipeline used to lay and replace power or telecommunication cable facilities. It is also the enclosure structure for the laid cable facilities. There are rectangular, circular, arched and other pipeline structures. In recent years, my country's rapid development has put forward higher and higher requirements on the safety and stability of the power grid. As an important part of power distribution, the power distribution room and its internal distribution cabinets are very important for their safety and stability.

[0003] There is perennial water accumulation in the primary and secondary cable trenches in the substation switch room. For safety reasons, water pumps and drain pipes are usually arranged in the cable trenches. The water in the cable trenches can be drained with the cooperation of the two. However, due to the perennial water accumulation, a lot of humid air will accumulate in the cable trenches. Although the humid air can be discharged through exhaust equipment, it is inevitable that some humid air will flow from the cable trenches to the substation switch room, causing the air in the substation switch room to be humid. Although the armored switch cabinet in the switch room is relatively closed, the humid air in the substation switch room may enter the armored switch cabinet from the bottom of the switch cabinet, thereby causing condensation on the surface of the high-voltage electrical equipment in the armored switch cabinet, resulting in safety hazards such as discharge. Utility Model Content

[0004] The utility model aims to provide a comprehensive air environment management device for a transformer substation switch room to solve the deficiencies in the above-mentioned prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: comprising: a dehumidification cabin installed in a switch room of a substation, the dehumidification cabin is provided with a blower for delivering humid air to the dehumidification cabin, the dehumidification cabin is provided with a first-level dehumidification chamber, a second-level dehumidification chamber and a third-level dehumidification chamber for dehumidifying the humid air; the first-level dehumidification chamber is provided with a heating unit for heating and drying the humid air; the second-level dehumidification chamber is provided with two sealing plates arranged opposite to each other, and the two sealing plates divide the second-level dehumidification chamber into an air inlet chamber, an air outlet chamber and a heat exchange chamber in sequence, and one end of the air inlet chamber is connected with the air supply port of the blower, the air outlet of the air outlet chamber is connected with the first-level dehumidification chamber, the air inlet chamber and the air outlet chamber are connected through a plurality of heat exchange condensation pipes passing through the heat exchange chamber, the heat exchange chamber is connected with the first-level dehumidification chamber through a first air duct, and the heat exchange chamber is connected with the third-level dehumidification chamber through a second air duct; the third-level dehumidification chamber is provided with a drying adsorbent for adsorbing and drying the humid air.

[0006] Preferably, a water receiving chamber connected to the heat exchange chamber is provided at the bottom of the secondary dehumidification chamber, and a drain pipe for draining water is provided in the water receiving chamber, and a control valve is provided at the water outlet end of the drain pipe.

[0007] Preferably, the plurality of heat exchange condenser tubes are distributed in a ring array.

[0008] Preferably, the heating unit includes a heating resistor arranged in the primary dehumidification chamber.

[0009] Preferably, the dehumidification cabin is also provided with an exhaust passage connected to the three-stage dehumidification chamber, and an exhaust fan for discharging the dehumidified air is provided in the exhaust passage, and a plurality of exhaust pipes distributed in a circular array are obliquely provided on the exhaust passage.

[0010] Preferably, a dust screen is installed at the air inlet end of the blower.

[0011] In the above technical scheme, the utility model provides a comprehensive air environment management device for the operating air in the switch room of a substation, which sends the humid air in the switch room of the substation into the air inlet chamber through the set air blower, and then sends it to the air outlet chamber through multiple heat exchange condensing tubes, and then the humid air will flow into the primary dehumidification chamber, and under the heating of the heating unit in the primary dehumidification chamber, the humid air can be dehumidified and dried for the first time, and then the heated air is transported to the heat exchange chamber through the first air duct, and heat is exchanged with the heat exchange condensing tube, so that the moisture in the humid air can be converted into liquid, and condensed on the heat exchange condensing tube. The surface of the water will drip into the water receiving chamber, which not only achieves the effect of the second dehumidification and drying, but also the humid air after heating will have a cooling effect due to the effect of heat exchange. After that, the air will be sent to the three-stage dehumidification chamber through the second air duct and dehumidified and dried for the third time through the drying adsorbent. Finally, the air after three dehumidification and drying will be discharged into the substation switch room through the exhaust fan. In this way, the substation switch room can be kept in a dry environment, which can effectively prevent humid air from entering the armored switch cabinet from the bottom of the switch cabinet, thereby effectively preventing condensation on the surface of high-voltage electrical equipment and reducing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0013] Figure 1 The overall structural diagram provided for the embodiment of the utility model;

[0014] Figure 2 A schematic diagram of the internal structure of a dehumidifier cabin provided in an embodiment of the utility model;

[0015] Figure 3 A schematic diagram of the direction of humid air flow provided by an embodiment of the utility model;

[0016] Figure 4 A schematic diagram of the internal structure of a secondary dehumidification chamber provided in an embodiment of the utility model.

[0017] Description of reference numerals:

[0018] 1. Dehumidification cabin; 2. Air blower; 3. First-stage dehumidification chamber; 4. Second-stage dehumidification chamber; 5. Third-stage dehumidification chamber; 6. Heating unit; 7. Sealing plate; 8. Air inlet chamber; 9. Air outlet chamber; 10. Heat exchange chamber; 11. Heat exchange condenser tube; 12. First air duct; 13. Dry adsorbent; 14. Water receiving chamber; 15. Drain pipe; 16. Control valve; 17. Exhaust channel; 18. Exhaust fan; 19. Exhaust duct; 20. Second air duct. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0020] See also Figure 1-4The embodiment of the utility model includes: a dehumidifier cabin 1 installed in the switch room of a substation, a blower 2 for delivering humid air to the dehumidifier cabin 1 is provided on the dehumidifier cabin 1, a primary dehumidifier cabin 3, a secondary dehumidifier cabin 4 and a tertiary dehumidifier cabin 5 for dehumidifying the humid air are provided in the dehumidifier cabin 1; a heating unit 6 for heating and drying the humid air is provided in the primary dehumidifier cabin 3; two sealing plates 7 arranged opposite to each other are provided in the secondary dehumidifier cabin 4, and the two sealing plates 7 sequentially divide the secondary dehumidifier cabin 4 into an air inlet chamber 8, an air outlet chamber 9 and a heat exchange chamber 10, and one end of the air inlet chamber 8 is connected to the air outlet of the blower 2, the air outlet of the air outlet chamber 9 is connected to the first-stage dehumidification chamber 3, the air inlet chamber 8 and the air outlet chamber 9 are connected through a plurality of heat exchange condensation pipes 11 passing through the heat exchange chamber 10, the heat exchange chamber 10 and the first-stage dehumidification chamber 3 are connected through a first air duct 12, and the heat exchange chamber 10 and the third-stage dehumidification chamber 5 are connected through a second air duct 20; a drying adsorbent 13 for adsorbing and drying humid air is provided in the third-stage dehumidification chamber 5; the humid air in the substation switch room is sent to the inlet through the blower 2 The humid air is then sent to the air outlet chamber 9 through a plurality of heat exchange condensation tubes 11, and then flowed to the first dehumidification chamber 3. Under the heating of the heating unit 6 in the first dehumidification chamber 3, the humid air can be dehumidified and dried for the first time. Then, the heated air is transported to the heat exchange chamber 10 through the first air duct 12, and heat is exchanged with the heat exchange condensation tube 11. The moisture in the humid air can be converted into liquid, and condensed on the surface of the heat exchange condensation tube 11, and will drip into the water receiving chamber 14, which not only achieves the effect of the second dehumidification and drying, but also the heated humid air has a cooling effect due to the heat exchange effect. Then, the air is sent to the third dehumidification chamber 5 through the second air duct 20 and dehumidified and dried for the third time through the drying adsorbent 13. Finally, the air after three dehumidification and drying is discharged into the substation switch room through the exhaust fan 18, so that the substation switch room can be always in a dry environment, which can effectively prevent the humid air from entering the armored switch cabinet from the bottom of the switch cabinet, and then effectively prevent the condensation on the surface of the high-voltage electrical equipment, thereby reducing the safety hazard.

[0021] Among them, a water receiving chamber 14 connected to the heat exchange chamber 10 is provided at the bottom of the secondary dehumidification chamber 4, and a drain pipe 15 for discharging water is provided in the water receiving chamber 14, and a control valve 16 is provided at the water outlet end of the drain pipe 15; the staff can manually open the control valve 16 to discharge the water in the water receiving chamber 14.

[0022] Among them, a plurality of heat exchange condensing tubes 11 are distributed in a ring array.

[0023] The heating unit 6 includes a heating resistor arranged in the primary dehumidification chamber 3; it should be noted that the heating resistor is a prior art and can be purchased on the market.

[0024] Among them, the dehumidification cabin 1 is connected to the third-stage dehumidification chamber 5 and is also provided with an exhaust channel 17, and an exhaust fan 18 for discharging the dehumidified air is provided in the exhaust channel 17. A plurality of exhaust pipes 19 distributed in a circular array are obliquely provided on the exhaust channel 17, so that the dehumidified air can be diffused to the surroundings.

[0025] Among them, a dustproof net is installed at the air inlet end of the air blower 2, which has a certain dustproof effect, prevents dust from damaging the entire device, and improves the service life of the entire device to a certain extent.

[0026] First, the humid air in the substation switch room is sent to the air inlet chamber 8 through the set air blower 2, and then sent to the air outlet chamber 9 through multiple heat exchange condensation tubes 11, and then the humid air will flow into the primary dehumidification chamber 3. Under the heating of the heating unit 6 in the primary dehumidification chamber 3, the humid air can be dehumidified and dried for the first time, and then the heated air is transported to the heat exchange chamber 10 through the first air duct 12, and heat is exchanged with the heat exchange condensation tube 11, which can convert the moisture in the humid air into liquid, and condense on the surface of the heat exchange condensation tube 11, and drip into the water receiving chamber 14, which not only achieves the effect of the second dehumidification and drying, but also the heated air The humid air has a cooling effect due to the effect of heat exchange, and then the air is sent to the three-stage dehumidification chamber 5 through the second air duct 20 and dehumidified and dried for the third time through the dry adsorbent 13, and finally the air after three dehumidification and drying is discharged into the substation switch room through the exhaust fan 18. In this way, the substation switch room can always be in a dry environment, which can effectively prevent humid air from entering the armored switch cabinet from the bottom of the switch cabinet, and then effectively prevent condensation on the surface of high-voltage electrical equipment, reducing safety hazards; at the same time, the secondary dehumidification chamber 4 can condense most of the moisture and drip it into the water receiving chamber 14, which can reduce the frequency of replacing the dry adsorbent 13.

[0027] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A comprehensive air environment management device for a substation switch room, comprising: A dehumidifier cabin (1) installed in a switch room of a transformer substation, characterized in that the dehumidifier cabin (1) is provided with a blower (2) for delivering humid air into the dehumidifier cabin (1), and the dehumidifier cabin (1) is provided with a primary dehumidifier cabin (3), a secondary dehumidifier cabin (4) and a tertiary dehumidifier cabin (5) for dehumidifying the humid air; The first-level dehumidification chamber (3) is provided with a heating unit (6) for heating and drying the moist air; The secondary dehumidification chamber (4) is provided with two sealing plates (7) arranged opposite to each other, and the two sealing plates (7) divide the interior of the secondary dehumidification chamber (4) into an air inlet chamber (8), an air outlet chamber (9) and a heat exchange chamber (10) in sequence, and one end of the air inlet chamber (8) is connected to the air supply port of the blower (2), and the air outlet of the air outlet chamber (9) is connected to the first dehumidification chamber (3), the air inlet chamber (8) and the air outlet chamber (9) are connected via a plurality of heat exchange condensation tubes (11) passing through the heat exchange chamber (10), the heat exchange chamber (10) and the first dehumidification chamber (3) are connected via a first air duct (12), and the heat exchange chamber (10) and the third dehumidification chamber (5) are connected via a second air duct (20); The third-stage dehumidification chamber (5) is provided with a drying adsorbent (13) for adsorbing and drying the humid air.

2. A comprehensive air environment management device for a substation switch room according to claim 1, characterized in that: The bottom of the secondary dehumidification chamber (4) is provided with a water receiving chamber (14) which is in communication with the heat exchange chamber (10), and a drainage pipe (15) for discharging water is provided in the water receiving chamber (14), and a control valve (16) is provided at the water outlet end of the drainage pipe (15).

3. A comprehensive air environment management device for operating a substation switch room according to claim 1, characterized in that: A plurality of heat exchange condensing tubes (11) are distributed in a ring array.

4. A comprehensive air environment management device for a substation switch room according to claim 1, characterized in that: The heating unit (6) comprises a heating resistor arranged in the primary dehumidification chamber (3).

5. The device for comprehensive management of the operating air environment of a substation switch room according to claim 1 is characterized in that: The dehumidifier cabin (1) is also provided with an exhaust passage (17) connected to the third-stage dehumidification chamber (5), and an exhaust fan (18) is provided in the exhaust passage (17) for exhausting the dehumidified air. A plurality of exhaust pipes (19) distributed in a circular array are obliquely provided on the exhaust passage (17).

6. A comprehensive air environment management device for operating a substation switch room according to claim 1, characterized in that: The air inlet end of the air blower (2) is equipped with a dustproof net.

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