CN220156040U - Inside dehydrating unit of transformer substation - Google Patents

Abstract

The utility model discloses an internal dehumidifying device of a transformer substation, which comprises a cabinet body, wherein a first electric heating component is arranged in the cabinet body, an air exhaust fan is arranged at the upper end of the side surface of the cabinet body, an air inlet mechanism is arranged at the lower end of the side surface of the cabinet body, the air inlet mechanism comprises a drying box, a drying chamber is arranged in the drying box, and a drying net is arranged in the drying chamber. Through setting up first electrical heating component in the cabinet body, set up bleed fan and air inlet mechanism in the side of the cabinet body to set up the drying net in air inlet mechanism, through the work of first electrical heating component, make the unsaturated degree of vapor in the air in the cabinet body increase, the steam in the cabinet is discharged through the work of bleed fan, through air inlet mechanism, the setting of drying net, carries out drying treatment to the internal gas of external entering cabinet, reaches the purpose of internal portion dehumidification of cabinet.

Description

Inside dehydrating unit of transformer substation

Technical Field

The utility model belongs to the technical field of transformer substation equipment, and particularly relates to an internal dehumidifying device of a transformer substation.

Background

The humidity problem of substation power equipment (such as a switch cabinet) is solved, and the purpose is to reduce the humidity of air in the substation power equipment, so that the relative humidity is less than or equal to 60%, and the environment temperature and humidity index of safe operation of high-voltage power equipment is met. The high-pressure chamber is relatively sealed not tight, when ambient humidity is higher, the difference in temperature is great, and moist air easily gets into the room along door and window gap, cable pit and ventilative bars gap, and in the partial moist air can get into the cubical switchboard along the gap of the cabinet body, easily gathers in the corner, can't discharge, easily leads to the incident emergence of safe operation, especially the incident easily takes place in rainy season, and the weather temperature is higher in period. The current dehumidification method of the switch cabinet equipment comprises the following steps: 1. an electric heater is additionally arranged in the cabinet to heat the inside of the equipment, and the relative humidity in the cabinet is reduced by improving the temperature in the cabinet. 2. The cabinet is internally provided with a moisture-removing agent, and a silica gel bag or other water-absorbing materials are hung in the cabinet to absorb moisture in the cabinet. 3. A fan is arranged outside the cabinet, and the air is exchanged with the air dried outside through convection of the air so as to reduce the humidity in the electrical cabinet. 4. The cable gap is sealed by using cement, and the cabinet door sealing rubber strip is sealed. In the dehumidification method 1, the disadvantage is that an electric heater is used for heating the interior of the equipment to solve the condensation phenomenon, but the condensation cannot be fundamentally eliminated by the method, because the method only increases the unsaturated degree of water vapor in the air and does not discharge the water vapor in the cabinet; in the dehumidification method 3, the defects are that a fan is used, the air is exchanged with the air dried outside through convection of the air to reduce the humidity in the electric cabinet, the dehumidification effect is very small when the humidity of the outside environment is high, dust and dirt are easy to enter, and the dehumidification purpose is difficult to achieve.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide an internal dehumidifying device of a transformer substation, which is used for solving the technical problems in the background art.

The utility model provides the following technical scheme:

the utility model provides an inside dehydrating unit of transformer substation, includes the cabinet body, the inside wall of the cabinet body is provided with first electrical heating subassembly, the side upper end of the cabinet body is provided with the air exhaust fan, the side lower extreme of the cabinet body is provided with air inlet mechanism, air inlet mechanism includes the drying cabinet, the drying cabinet is hollow cuboid form, the inside of drying cabinet is equally divided into the triplex along its length direction, the middle part of drying cabinet is the drying cabinet, the inside drying cabinet that is located is left of the drying cabinet is first dehumidification room, the inside drying cabinet that is located is right of the drying cabinet is second dehumidification room, be provided with the drying net in the drying cabinet, be provided with the displacement subassembly that is used for making drying net follow drying cabinet length direction reciprocating motion on the up end of drying cabinet, be provided with second electrical heating subassembly in first dehumidification room, the second dehumidification room respectively.

Preferably, a second air inlet pipe is arranged on one side surface of the drying box, which is close to the cabinet body, and one end, far away from the cabinet body, of the second air inlet pipe penetrates through the side surface of the drying box and is communicated with the drying chamber.

Preferably, a first air inlet pipe is arranged on one side surface, far away from the cabinet body, of the drying box, and one end, close to the cabinet body, of the first air inlet pipe penetrates through the side surface of the drying box and is communicated with the drying chamber.

Preferably, a filter screen is coaxially arranged at one end, far away from the cabinet body, of the first air inlet pipe.

Preferably, the length direction of the drying net is along the length direction of the drying box, the drying net is evenly divided into two parts along the length direction of the drying net, the drying net comprises a first drying area and a second drying area, the first drying area is located in the drying chamber, and the second drying area is located in the second dehumidifying chamber.

Preferably, the upper end face of the drying box is provided with a long opening at the drying chamber, the length direction of the long opening is along the length direction of the drying box, and two ends of the long opening extend to the first dehumidifying chamber and the second dehumidifying chamber respectively.

Preferably, the displacement assembly comprises two vertical plates, the two vertical plates are respectively positioned on the front side and the rear side of the upper end face of the drying box, a ball screw is arranged between the two vertical plates, the axial direction of the ball screw is the same as the length direction of the drying box, the two ends of the ball screw are respectively and vertically connected with the two vertical plates through bearings, a ball nut block is adapted to the ball screw, the lower end of the ball nut block is connected with the upper end of the drying net through a long opening, and a motor for driving the ball screw to rotate is further arranged on the upper end face of the drying box.

Preferably, the second electric heating assembly comprises ventilation holes, second electric heating rods and exhaust fans, wherein the ventilation holes are respectively located at the upper ends of the first dehumidifying chamber and the second dehumidifying chamber, the second electric heating rods are respectively located on the left inner wall and the right inner wall of the first dehumidifying chamber and the second dehumidifying chamber, and the exhaust fans are respectively located on the lower sides of the first dehumidifying chamber and the second dehumidifying chamber.

Preferably, the first electric heating assembly comprises a plurality of first electric heating rods, the first electric heating rods are arranged on the inner side walls of the cabinet body respectively, and the inner side walls of the cabinet body are provided with protection covers at the positions of each first electric heating rod.

Preferably, the side upper end of the cabinet body is provided with a first opening at the air extraction fan, the output end of the air extraction fan is communicated with the outside through the first opening, the outer side of the cabinet body is provided with a rectangular baffle plate for shielding the first opening at the first opening, the upper end of the rectangular baffle plate is connected with the cabinet body through a hinge shaft, and the hinge shaft is positioned above the first opening.

Compared with the prior art, the utility model has the following beneficial effects:

(1) According to the internal dehumidifying device of the transformer substation, the first electric heating component is arranged in the cabinet body, the air suction fan and the air inlet mechanism are arranged on the side face of the cabinet body, the drying net is arranged in the air inlet mechanism, the unsaturated degree of vapor in the cabinet body is increased through the operation of the first electric heating component, the vapor in the cabinet is discharged through the operation of the air suction fan, and the air entering the interior of the cabinet body from the outside is dried through the arrangement of the air inlet mechanism and the drying net, so that the aim of dehumidifying the interior of the cabinet body is fulfilled.

(2) The utility model relates to an internal dehumidifying device of a transformer substation, which is characterized in that a drying box is divided into three parts, namely a drying chamber, a first dehumidifying chamber and a second dehumidifying chamber, a drying net is divided into two parts, namely a first drying area and a second drying area, the drying chamber is communicated with a cabinet body, second electric heating assemblies are respectively arranged in the first dehumidifying chamber and the second dehumidifying chamber, when the first drying area is positioned in the drying chamber for drying gas, the second drying area is positioned in the second dehumidifying chamber, the second electric heating assemblies dehumidify the second drying area, when the second drying area is positioned in the drying chamber for drying gas, the first drying area is positioned in the first dehumidifying chamber, and the second electric heating assemblies dehumidify the first drying area, so that the drying degree of the drying net is ensured, the drying efficiency of the drying net is improved, the replacement frequency of the drying net is reduced, and the labor is saved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and that other related drawings can be obtained according to these drawings without the inventive effort of a person skilled in the art.

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic structural view of an air intake mechanism of the present utility model.

Fig. 3 is a schematic view of the internal structure of the drying oven according to the present utility model.

Fig. 4 is a schematic diagram of the structure of the upper end face of the drying oven according to the present utility model.

Fig. 5 is a schematic structural diagram of a displacement assembly according to the present utility model.

Fig. 6 is an enlarged schematic view of a portion of fig. 1 according to the present utility model.

In the figure: 1. a cabinet body; 2. a first electrical heating assembly; 3. a first opening; 4. an air extraction fan; 6. an air inlet mechanism; 61. a drying box; 62. a drying chamber; 63. a first dehumidifying chamber; 64. a second dehumidifying chamber; 65. drying the net; 651. a first drying zone; 652. a second drying zone; 66. a first air inlet pipe; 67. a second air inlet pipe; 7. a displacement assembly; 71. a riser; 72. a ball screw; 73. a ball nut block; 74. a guide rod; 75. a motor; 8. an elongated opening; 91. ventilation holes; 92. a second electrical heating rod; 93. an exhaust fan; 10. a rectangular baffle; 11. and (3) a filter screen.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model.

Referring to fig. 1-6, an internal dehumidifying device of a transformer substation comprises a cabinet body 1, the cabinet body is a switch cabinet for the transformer substation, a first electric heating component 2 is arranged on the inner side wall of the cabinet body 1, an air suction fan 4 is arranged at the upper end of the side face of the cabinet body 1, an air inlet mechanism 6 is arranged at the lower end of the side face of the cabinet body 1, the air inlet mechanism 6 comprises a drying box 61, the drying box 61 is in a hollow cuboid shape, the interior of the drying box 61 is equally divided into three parts along the length direction, the middle part of the drying box 61 is a drying chamber 62, a first dehumidifying chamber 63 is arranged on the left side of the drying chamber 62 inside the drying box 61, a second dehumidifying chamber 64 is arranged on the right side of the drying chamber 62 inside the drying box 61, a drying net 65 is arranged in the drying chamber 62, a displacement component 7 for enabling the drying net 65 to reciprocate along the length direction of the drying box 61 is arranged on the upper end face of the drying box 61, and a second electric heating component is arranged in the first dehumidifying chamber 63 and the second dehumidifying chamber 64 respectively. Through setting up first electrical heating component in the cabinet body, set up the air extraction fan and the mechanism that admits air in the side of the cabinet body to set up the drying net in the mechanism that admits air, through the work of first electrical heating component, increase the unsaturated degree of vapor in the cabinet body in the air, discharge the steam in the cabinet through the work of air extraction fan, make the internal portion of cabinet produce the negative pressure simultaneously, make external air get into the cabinet body through the mechanism that admits air, through the setting of mechanism, drying net, get into the internal gas of cabinet to the external portion and carry out drying treatment, thereby reach the purpose of internal portion dehumidification of cabinet.

A second air inlet pipe 67 is arranged on one side surface of the drying cabinet 61 close to the cabinet body 1, and one end, far away from the cabinet body 1, of the second air inlet pipe 67 penetrates through the side surface of the drying cabinet 61 and is communicated with the drying chamber 62.

A first air inlet pipe 66 is arranged on one side surface of the drying box 61 far away from the cabinet body 1, and one end, close to the cabinet body 1, of the first air inlet pipe 66 penetrates through the side surface of the drying box 61 and is communicated with the drying chamber 62.

The first air inlet pipe 66 is coaxially provided with a filter screen 11 at one end far away from the cabinet 1. The filter screen 11 can filter foreign matters such as external dust and dirt and prevent the foreign matters from entering the cabinet body.

The length direction of the drying net 65 is along the length direction of the drying box 61, the drying net 65 is equally divided into two parts along the length direction, the drying net 65 comprises a first drying area 651 and a second drying area 652, the first drying area 651 is located in the drying chamber 62, and the second drying area 652 is located in the second dehumidifying chamber 64. The length of the drying wire 65 is two-thirds of the length of the drying cabinet 61.

The upper end surface of the drying box 61 is provided with a long opening 8 at the drying chamber 62, the length direction of the long opening 8 is along the length direction of the drying box 61, and two ends of the long opening 8 extend to the first dehumidifying chamber 63 and the second dehumidifying chamber 64 respectively.

The displacement assembly 7 comprises two vertical plates 71, wherein the two vertical plates 71 are respectively positioned on the front side and the rear side of the upper end face of the drying box 61, a ball screw 72 is arranged between the two vertical plates, the axial direction of the ball screw is the same as the length direction of the drying box 61, the two ends of the ball screw 72 are respectively and vertically connected with the two vertical plates through bearings, a ball nut block 73 is adapted to the ball screw, the lower end of the ball nut block 73 is connected with the upper end of the drying net 65 through an elongated opening 8, and a motor 75 for driving the ball screw to rotate is further arranged on the upper end face of the drying box 61. The motor 75 is a forward and reverse motor.

A guide rod 74 is also horizontally arranged between the two vertical plates, the axial direction of the guide rod 74 is the same as the length direction of the drying box 61, and a guide hole matched with the guide rod 74 is arranged on the ball nut block 73. The stability of the ball nut block during movement can be further improved through the guide rod.

Through the work of motor 75, can drive ball screw and rotate, ball screw's rotation can make the ball nut piece follow ball screw axis direction and remove, and the removal of ball nut piece can drive the removal of drying net 65, realizes the switching of first drying zone 651, second drying zone 652 in drying chamber 62.

The second electric heating assembly comprises air holes 91, second electric heating rods 92 and an exhaust fan 93, wherein the air holes 91 are respectively positioned at the upper ends of the first dehumidifying chamber 63 and the second dehumidifying chamber 64, a plurality of the second electric heating rods 92 are respectively positioned on the left inner wall and the right inner wall of the first dehumidifying chamber 63 and the second dehumidifying chamber 64, and the exhaust fan 93 is respectively positioned on the lower side surfaces of the first dehumidifying chamber 63 and the second dehumidifying chamber 64. The drying box is divided into three parts, namely a drying chamber, a first dehumidification chamber and a second dehumidification chamber, the drying net is divided into two parts, namely a first drying area and a second drying area, the drying chamber is communicated with the cabinet body, second electric heating assemblies are respectively arranged in the first dehumidification chamber and the second dehumidification chamber, when the first drying area is positioned in the drying chamber for drying gas, the second drying area is positioned in the second dehumidification chamber, and the second drying area is dehumidified by the second electric heating assemblies (as shown in figure 3); when the second drying area is positioned in the drying chamber to dry gas, the first drying area is positioned in the first dehumidification chamber, and the first drying area is dehumidified through the second electric heating assembly, so that the second electric heating assembly reciprocates, the dryness of the drying net during drying is guaranteed, the drying efficiency of the drying net is improved, the replacement frequency of the drying net is reduced, the labor is saved (the drying net becomes wet after absorbing moisture, the drying effect is reduced, and the drying net needs to be taken out for airing under normal conditions and is used after being dried).

The first electric heating assembly 2 comprises a plurality of first electric heating rods 21, the first electric heating rods 21 are arranged, the first electric heating rods 21 are respectively located on the inner side walls of the cabinet body 1, and the inner side walls of the cabinet body are located at the position of each first electric heating rod 21 and are all provided with a protective cover 22.

The side upper end of the cabinet body is located the air extraction fan 4 department and is provided with first opening 3, the output of air extraction fan 4 communicates with the external world through first opening, the lateral surface of the cabinet body is located first opening department is provided with the rectangle baffle 10 that is used for sheltering from first opening, the upper end of rectangle baffle 10 is connected with the cabinet body through the articulated shaft, the articulated shaft is located first open-ended top. The rectangular baffle is made of lighter materials. Namely, the air exhaust fan 4 works, the rectangular baffle can be blown up by a certain angle, and when the dehumidification device does not work, the rectangular baffle is influenced by self gravity and is vertically downwards arranged to shield the first opening, so that foreign matters such as external moisture, dust and the like are prevented from entering the cabinet body.

Working principle: the utility model relates to an internal dehumidifying device of a transformer substation, when a cabinet body needs to be dehumidified, a first electric heating component 2 works for a period of time to increase the unsaturated degree of vapor in the cabinet body, then an air suction fan starts to work, vapor in the cabinet is discharged through the work of the air suction fan, negative pressure is generated in the cabinet body, external air enters the cabinet body through an air inlet mechanism, when the external moist air enters a drying box and passes through a drying net, a first drying area of the drying net absorbs moisture in the air, the air entering the interior of the cabinet body from the outside is dried, and meanwhile, the first drying area is positioned in a second dehumidifying chamber and is used for removing the moisture in a second drying area of the drying net through the work of a second electric heating component; after a period of time of operation, through the work of motor 75, drive ball screw and rotate, ball screw's rotation makes ball nut piece follow ball screw axis direction and removes, and the removal of ball nut piece drives the removal of drying net 65, realizes first drying zone 651, the switching of second drying zone 652 in drying chamber 62, and second drying zone 652 is located the drying chamber and carries out dry work this moment, and first drying zone is located the first dehumidification is indoor through the work of second electrical heating component, gets rid of the moisture in the first drying zone of drying net.

The above description is only of the preferred embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto, and any person skilled in the art, within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical solution of the present utility model and the inventive concept thereof, and should be covered by the protection scope of the present utility model.

Claims (7)

1. The utility model provides an inside dehydrating unit of transformer substation, includes cabinet body (1), its characterized in that: the novel drying cabinet is characterized in that a first electric heating component (2) is arranged on the inner side wall of the cabinet body (1), an air suction fan (4) is arranged at the upper end of the side face of the cabinet body (1), an air inlet mechanism (6) is arranged at the lower end of the side face of the cabinet body (1), the air inlet mechanism (6) comprises a drying box (61), the drying box (61) is in a hollow cuboid shape, the inside of the drying box (61) is equally divided into three parts along the length direction of the drying box, a drying chamber (62) is arranged in the middle of the drying box (61), a first dehumidifying chamber (63) is arranged on the left side of the drying chamber (62) inside the drying box (61), a second dehumidifying chamber (64) is arranged on the right side of the drying chamber (62), a drying net (65) is arranged in the drying chamber (62), a displacement component (7) used for enabling the drying net (65) to reciprocate along the length direction of the drying box (61) is arranged on the upper end face of the drying box, and the second electric heating component is arranged in the first dehumidifying chamber (63) and the second dehumidifying chamber (64).

2. The internal dehumidifying device of a transformer substation according to claim 1, wherein a second air inlet pipe (67) is arranged on one side surface of the drying box (61) close to the cabinet body (1), and one end of the second air inlet pipe (67) far away from the cabinet body (1) penetrates through the side surface of the drying box (61) to be communicated with the drying chamber (62).

3. The internal dehumidifying device of a transformer substation according to claim 2, wherein a side surface of the drying oven (61) far away from the cabinet body (1) is provided with a first air inlet pipe (66), and one end of the first air inlet pipe (66) close to the cabinet body (1) penetrates through the side surface of the drying oven (61) to be communicated with the drying chamber (62).

4. A device according to claim 3, characterized in that the first air inlet pipe (66) is provided with a filter screen (11) coaxially at the end of the interior remote from the cabinet (1).

5. The internal dehumidifying device of a transformer substation according to claim 1, wherein the length direction of the drying net (65) is set along the length direction of the drying oven (61), the drying net (65) is divided into two parts along the length direction thereof, the drying net (65) comprises a first drying area (651) and a second drying area (652), the first drying area (651) is located in the drying chamber (62), and the second drying area (652) is located in the second dehumidifying chamber (64).

6. The internal dehumidifying device of a transformer substation according to claim 5, wherein an upper end surface of the drying oven (61) is provided with an elongated opening (8) at a drying chamber (62), a length direction of the elongated opening (8) is provided along a length direction of the drying oven (61), and both ends of the elongated opening (8) are extended to a first dehumidifying chamber (63) and a second dehumidifying chamber (64), respectively.

7. The internal dehumidifying device of a transformer substation according to claim 6, wherein the displacement assembly (7) comprises two vertical plates (71), the two vertical plates are respectively arranged on the front side and the rear side of the upper end face of the drying box (61), a ball screw (72) is arranged between the two vertical plates, the axial direction of the ball screw is identical to the length direction of the drying box (61), two ends of the ball screw (72) are respectively and vertically connected with the two vertical plates through bearings, a ball nut block (73) is adapted to the ball screw, the lower end of the ball nut block (73) is connected with the upper end of the drying net (65) through an elongated opening (8), and a motor (75) for driving the ball screw to rotate is further arranged on the upper end face of the drying box (61).