CN221263103U - Dampproofing low-voltage grounding resistance cabinet - Google Patents

Abstract

The utility model discloses a dampproof low-voltage grounding resistor cabinet, which belongs to the technical field of resistor cabinets and comprises a resistor cabinet body, wherein a plurality of ventilating plates distributed in an array are fixedly arranged between the inner walls of the left side and the right side of the resistor cabinet body, the ventilating plates are used for bearing electric devices, a fan is penetrated and fixedly arranged at the top end of the resistor cabinet body, an opening is formed in the bottom end of the resistor cabinet body, a filter screen is fixedly arranged at the bottom wall of the resistor cabinet body, a drying box is fixedly arranged at the top end of the filter screen, drying materials are filled in the drying box, a plurality of honeycomb holes distributed in an array are formed in the top cover and the bottom end of the drying box, ventilating grooves are formed in the outer walls of the left side and the right side of the drying box, and a plurality of heat conducting pipes distributed in an array are arranged between the left side and the right side of the drying box. The utility model has the structure of recovering and using the heat in the cabinet, has the dampproof function, and is more energy-saving and safer.

Description

Dampproofing low-voltage grounding resistance cabinet

Technical Field

The application relates to the technical field of resistor cabinets, in particular to a dampproof low-voltage grounding resistor cabinet.

Background

The neutral point of the generator is grounded with high resistance to limit the grounding current and prevent various overvoltages, the neutral point can limit the fault current to a proper value through the grounding of the resistor, the sensitivity of relay protection is improved to act on tripping, meanwhile, the fault point is only possible to generate partial slight burn, the re-ignition of an arc is limited, the overvoltage of an arc gap is prevented from damaging main equipment, and meanwhile, the overvoltage of ferromagnetic resonance can be effectively prevented, so that the safe operation of the generator is ensured.

Chinese patent publication No.: (CN 210667943) discloses a heat dissipation resistance cabinet, including from supreme air inlet district, working area and the air-out district that sets gradually down, be equipped with the mounting panel that a plurality of intervals set up in the working area, resistor evenly distributed is on resistance cabinet side and mounting panel, the part that the working area both sides are adjacent with air inlet district and air-out district respectively all is equipped with ventilation screen, be equipped with the subassembly of blowing that sets up towards the working area in the air inlet district, be equipped with the subassembly of induced drafting that sets up towards the external world in the air-out district, be equipped with the ventilation pipe in the working area, ventilation pipe one end communicates with the subassembly of blowing, the other end communicates with the subassembly of induced drafting.

For the related art, for example, in the use process of the resistor cabinet in a humid environment, because the air flow formed by the fan generally carries the heat in the cabinet to the outside of the cabinet, so that the humid air is easy to enter the cabinet, the corrosion of electric devices is accelerated, and even the circuit is short-circuited, the circuit is not safe enough, and therefore, in order to solve the problem, a dampproof low-voltage grounding resistor cabinet is provided.

Disclosure of utility model

In order to solve the problems, the application provides a dampproof low-voltage grounding resistor cabinet, which adopts the following technical scheme:

The utility model provides a dampproofing low pressure earthing resistance cabinet, includes the resistance cabinet body, fixed mounting has a plurality of ventilating boards that are array distribution between the left and right sides inner wall of resistance cabinet body, the ventilating board is used for bearing electric devices, the top of resistance cabinet body runs through and fixed mounting has the fan, the bottom of resistance cabinet body is provided with the opening, the diapire fixed mounting of resistance cabinet body has the filter screen, the top fixed mounting of filter screen has dry box, dry box intussuseption is filled with dry material, the top cap and the bottom of dry box all are provided with a plurality of honeycomb holes that are array distribution, the left and right sides outer wall of dry box all is provided with the ventilation duct that is array distribution, be provided with a plurality of heat pipes that are array distribution between the left and right sides of dry box, the heat pipe is the intercommunication setting with two ventilation ducts, one side of resistance cabinet body is provided with the gas vent with groove assorted, the top fixed mounting of resistance cabinet body has the filter screen, one side of filter screen runs through and fixed mounting has first blast pipe, first blast pipe of thermal box, first one side of thermal box runs through and is kept away from first blast pipe and the adjacent blast pipe that has the first blast pipe and the first side of blast pipe is provided with the temperature and humidity monitoring device that the adjacent side of the ventilation duct, the first blast pipe is provided with the adjacent side of the ventilation duct.

Preferably, a plurality of supporting legs distributed in an array are fixedly arranged at the bottom end of the resistor cabinet body, and the cross sections of the supporting legs are arranged in an inverted T shape.

Preferably, the drying material of the drying box comprises lime blocks and absorbent cotton.

Preferably, the heat conduction pipe is made of copper.

Preferably, the reflux structure comprises a reflux pipe, the top end of the reflux pipe is fixedly connected with the second exhaust pipe through a flange, the bottom end of the reflux pipe is penetrated and fixedly connected with the resistor cabinet body, and the bottom end outlet of the reflux pipe is matched with the adjacent ventilation groove.

Preferably, the temperature and humidity monitoring device comprises a temperature and humidity sensor, wherein the temperature and humidity sensor penetrates through and is fixedly arranged on the top wall of the resistor cabinet body, and the temperature and humidity sensor is used for monitoring the temperature and humidity in the resistor cabinet body.

In summary, the application has the following beneficial technical effects:

Through the installation to the resistance cabinet body, the resistance cabinet body is in the use, the fan cooperation is opened, get into dry box after filtering the outside air of cabinet through the filter screen, get into in the cabinet after the dry material in the dry box filters again, carry the interior thermal air of cabinet and get into the ventilation groove from second blast pipe and backward flow structure, follow a plurality of heat pipes and gas vent discharge then, cooperate a plurality of heat pipes to carry out heat conduction to the dry material in the dry box, have had the structure to the heat recovery use in the cabinet, have dampproofing function, more energy-conservation and safety.

Drawings

FIG. 1 is a schematic diagram of the structure of the present application;

FIG. 2 is a cross-sectional view of the resistor cabinet body of the present application;

FIG. 3 is a view showing an installation structure of an opening of the present application;

fig. 4 is a mounting structure diagram of the heat exchange tube of the present application.

The reference numerals in the figures illustrate:

1. A resistor cabinet body; 2. supporting feet; 3. a ventilation board; 4. a blower; 5. an opening; 6. a filter screen; 7. a drying box; 8. honeycomb holes; 9. a ventilation groove; 10. a heat conduction pipe; 11. an exhaust port; 12. a thermal insulation box; 13. a first exhaust pipe; 14. a second exhaust pipe; 15. a return pipe; 16. and a temperature and humidity sensor.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application; it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present application are within the protection scope of the present application.

In the description of the present application, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

The application is described in further detail below with reference to fig. 1-4.

Referring to fig. 1-4, a dampproof low-voltage grounding resistor cabinet comprises a resistor cabinet body 1, a plurality of supporting legs 2 distributed in an array are fixedly arranged at the bottom end of the resistor cabinet body 1, the cross sections of the supporting legs 2 are arranged in an inverted T shape, the resistor cabinet has a supporting function, a plurality of ventilating plates 3 distributed in an array are fixedly arranged between the inner walls of the left side and the right side of the resistor cabinet body 1, the ventilating plates 3 are used for bearing electric devices, a blower 4 penetrates through the top end of the resistor cabinet body 1 and is fixedly arranged, the resistor cabinet has the function of outwards extracting air in the resistor cabinet body 1, an opening 5 is arranged at the bottom end of the resistor cabinet body 1, a filter screen 6 is fixedly arranged at the bottom wall of the resistor cabinet body 1, the filter screen 6 has the filtering function of air, a drying box 7 is fixedly arranged at the top end of the filter screen 6, and the drying box 7 is filled with drying materials, the drying material of the drying box 7 comprises lime blocks and absorbent cotton, has the drying effect on air, has the dampproof effect, a plurality of honeycomb holes 8 distributed in an array are arranged at the top cover and the bottom end of the drying box 7, has the drainage effect, ventilation grooves 9 are arranged on the outer walls of the left side and the right side of the drying box 7, the drainage effect is achieved, a plurality of heat conduction pipes 10 distributed in an array are arranged between the left side and the right side of the drying box 7, the heat conduction pipes 10 are communicated with the two ventilation grooves 9, the heat conduction pipes 10 are made of copper, have the heat conduction and heating effects on the drying material, an exhaust port 11 matched with the ventilation grooves 9 is arranged at one side of the resistor cabinet body 1, has the exhaust effect, a heat preservation box 12 is fixedly arranged at the top end of the resistor cabinet body 1, a fan 4 is positioned in the heat preservation box 12, has the supporting effect, a first exhaust pipe 13 penetrates through one side of the heat preservation box 12 and is fixedly arranged, the air exhaust function is realized, the second exhaust pipe 14 is penetrated and fixedly arranged at one side of the heat preservation box 12 far away from the first exhaust pipe 13, the air exhaust function is realized, electromagnetic valves are arranged on the side walls of the first exhaust pipe 13 and the second exhaust pipe 14, the air flow limiting function is realized, a backflow structure is arranged between the second exhaust pipe 14 and the adjacent ventilation groove 9, the backflow structure comprises a backflow pipe 15, the top end of the backflow pipe 15 is fixedly connected with the second exhaust pipe 14 through a flange, the bottom of back flow 15 is run through and fixed connection with resistance cabinet body 1, and the bottom export of back flow 15 and adjacent ventilation groove 9 assorted have the drainage effect, and the top of resistance cabinet body 1 is provided with temperature and humidity monitoring devices, and temperature and humidity monitoring devices includes temperature and humidity sensor 16, runs through temperature and humidity sensor 16 and fixed mounting in the roof of resistance cabinet body 1, and temperature and humidity sensor 16 is used for monitoring the humiture in the resistance cabinet body 1.

The implementation principle of the embodiment of the application is as follows: in the use of the resistor cabinet body 1, the fan 4 is matched with the opening 5, air outside the cabinet enters the drying box 7 after being filtered by the filter screen 6, then enters the cabinet after being filtered by the drying material in the drying box 7, air carrying heat in the cabinet enters the ventilation groove 9 from the second exhaust pipe 14 and the return pipe 15, then is discharged from the plurality of heat-conducting pipes 10 and the exhaust port 11, the heat conduction is carried out on the drying material in the drying box 7 by matching with the plurality of heat-conducting pipes 10, when the cabinet body is used in a dry place in summer, the temperature and humidity monitoring mechanism monitors that the humidity in the resistor cabinet body 1 is far lower than the limit value and the temperature is close to the limit value, the electromagnetic valve on the first exhaust pipe 13 is opened, the electromagnetic valve on the second exhaust pipe 14 is closed, and the heat in the carrying cabinet is discharged from the first exhaust pipe 13.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (6)

1. The utility model provides a dampproofing low pressure ground connection resistance cabinet, includes resistance cabinet body (1), its characterized in that: the utility model discloses a resistor cabinet, including resistor cabinet body (1), air board (3) that the left and right sides inner wall of resistor cabinet body (1) is fixed mounting has a plurality of ventilating boards (3) that are the array and distribute, ventilating board (3) are used for bearing electric devices, the top of resistor cabinet body (1) runs through and fixed mounting has fan (4), the bottom of resistor cabinet body (1) is provided with opening (5), the diapire fixed mounting of resistor cabinet body (1) has filter screen (6), the top fixed mounting of filter screen (6) has dry box (7), dry box (7) intussuseption is filled with dry material, the top cap and the bottom of dry box (7) all are provided with a plurality of honeycomb holes (8) that are the array and distribute, the left and right sides outer wall of dry box (7) all is provided with ventilation groove (9), be provided with a plurality of heat pipes (10) that are the array and distribute between the left and right sides of dry box (7), heat pipe (10) are the intercommunication setting with two ventilation grooves (9), one side of resistor cabinet body (1) is provided with dry box (7) air vent (7), top end (12) and a fixed mounting of resistor cabinet (12) are located in the heat preservation box (12), one side that first blast pipe (13) was kept away from to heat preservation box (12) runs through and fixed mounting has second blast pipe (14), the lateral wall of first blast pipe (13) and second blast pipe (14) all is provided with the solenoid valve, be provided with the backward flow structure between second blast pipe (14) and adjacent ventilation groove (9), the top of resistance cabinet body (1) is provided with temperature and humidity monitoring devices.

2. A moisture resistant low voltage grounding resistance cabinet in accordance with claim 1 wherein: the bottom fixed mounting of resistance cabinet body (1) has a plurality of supporting legs (2) that are the array and distribute, the cross-section of supporting legs (2) is the T type setting of inversion.

3. A moisture resistant low voltage grounding resistance cabinet in accordance with claim 1 wherein: the drying material of the drying box (7) comprises lime blocks and absorbent cotton.

4. A moisture resistant low voltage grounding resistance cabinet in accordance with claim 1 wherein: the heat pipe (10) is made of copper.

5. A moisture resistant low voltage grounding resistance cabinet in accordance with claim 1 wherein: the reflux structure comprises a reflux pipe (15), the top end of the reflux pipe (15) is fixedly connected with a second exhaust pipe (14) through a flange, the bottom end of the reflux pipe (15) is penetrated and fixedly connected with the resistor cabinet body (1), and the bottom end outlet of the reflux pipe (15) is matched with an adjacent ventilation groove (9).

6. A moisture resistant low voltage grounding resistance cabinet in accordance with claim 1 wherein: the temperature and humidity monitoring device comprises a temperature and humidity sensor (16), wherein the temperature and humidity sensor (16) penetrates through and is fixedly arranged on the top wall of the resistor cabinet body (1), and the temperature and humidity sensor (16) is used for monitoring the temperature and humidity in the resistor cabinet body (1).