CN219513660U - Environment-friendly nitrogen insulation cabinet - Google Patents

Abstract

The utility model discloses an environment-friendly nitrogen insulating cabinet which comprises a cabinet body, an air extraction assembly and an air exhaust assembly, wherein a temperature and humidity sensor is arranged on the inner wall of the cabinet body, the air extraction assembly comprises an air extraction pipe arranged on the right side of the cabinet body, a fan arranged on the inner wall of the air extraction pipe, a first filter screen arranged on the inner wall of the air extraction pipe and a second filter screen arranged on the inner wall of the air extraction pipe, and the air exhaust assembly comprises an air exhaust pipe arranged on the top of the cabinet body, a second electric valve arranged on the air exhaust pipe and a fan arranged on the rear side of the air exhaust pipe. According to the utility model, the screw cap of the air extraction assembly can be rotated to be separated from the stud, the sealing cover can be rotated to be opened after the screw cap is separated, external air can be pumped into the cabinet body through the fan after the screw cap is opened, and the fan can discharge nitrogen in the cabinet body through the exhaust pipe, so that the effect of reducing the nitrogen concentration in the cabinet body can be achieved, the problem of hypoxia choking caused by high-concentration nitrogen inhalation of people is avoided, and the safety is high.

Description

Environment-friendly nitrogen insulation cabinet

Technical Field

The utility model relates to the technical field of ring main units, in particular to an environment-friendly nitrogen insulation cabinet.

Background

The ring main unit is an electrical device with a group of high-voltage switch devices arranged in a steel plate metal cabinet body or made into an assembled interval ring main unit, and the core part of the ring main unit adopts a load switch and a fuse, and has the advantages of simple structure, small volume, low price, capability of improving power supply parameters and performance, power supply safety and the like. The nitrogen-insulated ring main unit is usually used in a severe environment, and the service life of electrical equipment is prolonged by dampproofing and oxidation prevention of nitrogen.

According to the retrieval, the patent with the publication number of CN102447227A discloses a bipolar dry air or nitrogen insulated metal closed switch cabinet for a high-speed railway, the content records that a horizontal circuit breaker and a built-in current transformer are installed in a lower air box, a plug-in S2 sleeve and a plug-in S3 cable sleeve are installed in the lower air box and positioned at the lower sides of the horizontal circuit breaker and the built-in current transformer, the upper air box and the lower air box are connected through an assembled air box connecting sleeve, the beneficial effects are that SF6 gas insulation is replaced by dry air insulation, the environment-friendly requirement is met, stable installation of the built-in current transformer and connection of the primary side can be realized only by taking a pressure release channel as an installation hole, the installation hole is not required to be additionally formed in a cabinet body panel, the air leakage risk … …' of the switch cabinet is reduced, the switch cabinet of the patent is characterized in that the switch cabinet is insulated through dry air or nitrogen, but a device for reducing the nitrogen concentration is not arranged, people easily inhale high-concentration nitrogen after opening, the switch cabinet is easy to cause oxygen deficiency, and the safety is not high, and a certain disadvantage exists.

Disclosure of Invention

The present utility model is directed to solving the problems of the prior art or related art.

The technical scheme adopted by the utility model is as follows: the utility model provides an environment-friendly nitrogen gas insulated cabinet, includes the cabinet body, bleed subassembly and exhaust subassembly, the inner wall of the cabinet body is provided with temperature and humidity sensor, bleed subassembly is including setting up the exhaust tube on the cabinet body right side, setting up the fan of exhaust tube inner wall, setting are in the first filter screen of exhaust tube inner wall and setting up the second filter screen of exhaust tube inner wall, exhaust subassembly is including setting up the blast pipe at the cabinet body top, setting up second motorised valve on the blast pipe and setting up the fan of blast pipe rear side.

Preferably, the front end hinge of the cabinet body is connected with a cabinet door, the corner of the bottom end of the cabinet body is provided with feet, the left side of the cabinet body is provided with a vertical pipe, a plurality of round holes are formed in the right side of the vertical pipe at equal intervals, a conveying pipe is arranged on the left side of the vertical pipe, a first electric valve is arranged on the conveying pipe, and the left side of the conveying pipe is fixedly connected with nitrogen gas supply equipment.

Preferably, the right side of the cabinet body is provided with the barometer, the inner wall of the cabinet body is provided with two L-shaped sliding rails, and the two L-shaped sliding rails are symmetrically distributed.

Preferably, the air extraction assembly further comprises a clamping hole formed in the bottom of the air extraction pipe, a sealing cover hinged to the right side of the air extraction pipe, a stud arranged on the left side of the sealing cover and a nut in threaded connection with the stud.

Preferably, the pore size of the first filter screen is smaller than that of the second filter screen.

Preferably, the drying assembly comprises a drying box, a drying agent and a metal net frame, wherein the drying box is in sliding connection with the L-shaped sliding rail, the drying agent is placed inside the drying box, and the metal net frame is arranged on the left side of the drying box.

Preferably, the drying assembly comprises an inlet pipe and an outlet pipe which are arranged at the top end of the drying box, and a top cover which is in threaded connection with the inlet pipe and the outlet pipe.

By adopting the technical scheme, the beneficial effects obtained by the utility model are as follows: the utility model discloses the nut of the subassembly of taking out of that sets up rotatable breaking away from the double-screw bolt, rotatable opening sealed lid after breaking away from, the accessible fan is with external air suction cabinet internal after opening, and the fan that sets up can be with the internal nitrogen gas of cabinet through blast pipe exhaust, can reach the effect that reduces the internal nitrogen gas concentration of cabinet, avoid people to cause the problem that the oxygen deficiency choked because of inhaling high concentration nitrogen gas, the security is high, and the particulate matter in the equal filterable air of first filter screen and the second filter screen that set up, keep the internal cleanliness factor of cabinet, then the drier of the dry subassembly that sets up can absorb the moisture in the internal air of cabinet, so that reduce the use of nitrogen gas, reduce cost.

Drawings

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

FIG. 2 is a schematic view of a cabinet according to the present utility model from one view;

FIG. 3 is a schematic view of another view of the cabinet of the present utility model;

FIG. 4 is a schematic diagram of an air extraction assembly according to the present utility model;

FIG. 5 is a schematic view of the exhaust tube of FIG. 4 according to the present utility model;

fig. 6 is a schematic structural view of the drying module of the present utility model.

Reference numerals:

100. a cabinet body; 110. a cabinet door; 120. a footing; 130. a standpipe; 131. a round hole; 140. a delivery tube; 150. a first electrically operated valve; 160. an air pressure gauge; 170. an L-shaped sliding rail; 180. a temperature and humidity sensor;

200. an air extraction assembly; 210. an exhaust pipe; 211. a fan; 212. a first filter screen; 213. a second filter screen; 220. a clamping hole; 230. sealing cover; 240. a stud; 250. a screw cap;

300. an exhaust assembly; 310. an exhaust pipe; 320. a second electrically operated valve; 330. a blower;

400. a drying assembly; 410. a drying box; 420. a drying agent; 430. a metal grid; 440. an inlet pipe and an outlet pipe; 450. and a top cover.

Detailed Description

The objects, technical solutions and advantages of the present utility model will become more apparent by the following detailed description of the present utility model with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.

Some embodiments of the utility model are described below with reference to the accompanying drawings to provide an environment-friendly nitrogen insulated cabinet.

Embodiment one:

referring to fig. 1-5, a first embodiment of the present utility model provides an environment-friendly nitrogen insulated cabinet, which includes a cabinet body 100, an air extraction assembly 200, and an air exhaust assembly 300.

Specifically, the inner wall of the cabinet body 100 is provided with a temperature and humidity sensor 180, the humidity in the cabinet body 100 can be sensed in real time by the temperature and humidity sensor 180 and fed back to external control equipment, the front end hinge of the cabinet body 100 is connected with a cabinet door 110, the cabinet door 110 can be opened or closed in a rotatable mode so as to seal the cabinet body 100, the corners of the bottom end of the cabinet body 100 are provided with feet 120, the feet 120 are used for supporting the cabinet body 100, the left side of the cabinet body 100 is provided with a vertical pipe 130, the right side of the vertical pipe 130 is provided with a plurality of round holes 131 at equal intervals, the left side of the vertical pipe 130 is provided with a conveying pipe 140, a first electric valve 150 is arranged on the conveying pipe 140, the left side of the conveying pipe 140 is fixedly connected with nitrogen gas supply equipment, when the humidity detected by the temperature and humidity sensor 180 is too high, the external control equipment can automatically control the nitrogen gas supply equipment to convey nitrogen gas into the cabinet body 100 through the conveying pipe 140 and the vertical pipe 130, and can dry air, when the humidity is low, the external control equipment can stop conveying nitrogen gas, and the intelligent environment-friendly effect can be achieved.

Further, the right side of the cabinet body 100 is provided with the barometer 160, the barometer 160 can detect the air pressure in the cabinet body 100, the safety is improved, the inner wall of the cabinet body 100 is provided with two L-shaped sliding rails 170, and the two L-shaped sliding rails 170 are symmetrically distributed.

Specifically, the air extraction assembly 200 includes an air extraction pipe 210 disposed on the right side of the cabinet body 100, a fan 211 disposed on the inner wall of the air extraction pipe 210, a first filter screen 212 disposed on the inner wall of the air extraction pipe 210, and a second filter screen 213 disposed on the inner wall of the air extraction pipe 210, where the aperture of the first filter screen 212 is smaller than that of the second filter screen 213, and the fan 211 can be controlled to operate by an external control device, and the operating fan 211 can pump outside air into the cabinet body 100 through the air extraction pipe 210 so as to exchange air, and during the pumping process, the outside air can sequentially pass through the second filter screen 213 and the first filter screen 212, and the second filter screen 213 and the first filter screen 212 can sequentially filter the air, so as to maintain the cleanliness in the cabinet body 100.

Further, the air extraction assembly 200 further comprises a clamping hole 220 formed at the bottom of the air extraction tube 210, a sealing cover 230 hinged to the right side of the air extraction tube 210, a stud 240 arranged at the left side of the sealing cover 230, and a nut 250 in threaded connection with the stud 240, wherein the stud 240 can be driven to be inserted into the clamping hole 220 by rotating the sealing cover 230, and the nut 250 is rotated to fix the sealing cover 230 on the air extraction tube 210 after the stud 240 is inserted.

Specifically, the exhaust assembly 300 includes an exhaust pipe 310 disposed at the top of the cabinet 100, a second electric valve 320 disposed on the exhaust pipe 310, and a blower 330 disposed at the rear side of the exhaust pipe 310, the blower 330 may be controlled to operate by an external control device, and the blower 330 may operate to exhaust nitrogen gas in the cabinet 100 through the exhaust pipe 310, so as to reduce the concentration of nitrogen gas in the cabinet 100.

Embodiment two:

referring to fig. 2 and 6, a second embodiment of the present utility model is different from the first embodiment in that: the drying assembly 400 comprises a drying box 410 in sliding connection with the L-shaped sliding rail 170, a drying agent 420 placed in the drying box 410 and a metal grid 430 arranged on the left side of the drying box 410, the drying assembly 400 can be inserted into the L-shaped sliding rail 170, and the drying agent 420 can absorb moisture in air in the cabinet 100 after insertion, so that the use of nitrogen is reduced, and the cost is reduced.

Further, the drying assembly 400 includes an inlet and outlet pipe 440 provided at the top end of the drying box 410 and a top cover 450 screw-coupled to the inlet and outlet pipe 440, the top cover 450 is rotatably opened, the old drying agent 420 in the drying box 410 is poured out through the inlet and outlet pipe 440 after the opening, and then a new drying agent 420 is poured into the drying box 410 through the inlet and outlet pipe 440 for replacement.

The working principle and the using flow of the utility model are as follows: during the use, humidity sensor 180 can be experienced the humidity in the cabinet body 100 in real time and feed back to external control equipment, when humidity is too high, external control equipment can automatic control nitrogen gas supply equipment carries nitrogen gas to the cabinet body 100 through conveyer pipe 140 and standpipe 130, can dry the air, when humidity is low, external control equipment can stop carrying nitrogen gas, the effect of intelligent environmental protection is achieved, when the cabinet body 100 needs to be opened, can rotate nut 250 earlier, until nut 250 breaks away from double-screw bolt 240 completely, rotatable sealed lid 230 of opening after breaking away from, then control fan 211 operation through external control equipment, the outside air can be pumped into the cabinet body 100 through extraction tube 210 by operating fan 211, the in-process of pumping, outside air can pass through second filter screen 213 and first filter screen 212 in proper order, second filter screen 213 and first filter screen 212 can filter the air in proper order, keep the cleanliness factor in the cabinet body 100, afterwards, fan 330 operation is controlled, fan 330 operation can be discharged the nitrogen gas in the cabinet body 100 through blast pipe 310, can reach the effect of reducing the nitrogen concentration in the cabinet body 100, avoid people to inhale the nitrogen gas of high concentration and cause oxygen deficiency, then the problem of drying cabinet body 170 is reached, can be aimed at in the interior of the sliding type of the drying assembly, can be reduced, and the cost of drying assembly is reduced, can be connected to the inside the drying assembly, and the drying assembly is easy, and the cost is reduced.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims (7)

1. An environment-friendly nitrogen insulation cabinet, which is characterized by comprising:

the cabinet body (100), the inner wall of the cabinet body (100) is provided with a temperature and humidity sensor (180);

the air extraction assembly (200) comprises an air extraction pipe (210) arranged on the right side of the cabinet body (100), a fan (211) arranged on the inner wall of the air extraction pipe (210), a first filter screen (212) arranged on the inner wall of the air extraction pipe (210) and a second filter screen (213) arranged on the inner wall of the air extraction pipe (210);

the exhaust assembly (300) comprises an exhaust pipe (310) arranged at the top of the cabinet body (100), a second electric valve (320) arranged on the exhaust pipe (310) and a fan (330) arranged at the rear side of the exhaust pipe (310).

2. The environment-friendly nitrogen insulation cabinet according to claim 1, wherein the front end hinge of the cabinet body (100) is connected with a cabinet door (110), feet (120) are arranged at corners of the bottom end of the cabinet body (100), a vertical pipe (130) is arranged on the left side of the cabinet body (100), a plurality of round holes (131) are formed in the right side of the vertical pipe (130) at equal intervals, a conveying pipe (140) is arranged on the left side of the vertical pipe (130), a first electric valve (150) is arranged on the conveying pipe (140), and the left side of the conveying pipe (140) is fixedly connected with nitrogen supply equipment.

3. The environment-friendly nitrogen insulation cabinet according to claim 2, wherein an air pressure gauge (160) is arranged on the right side of the cabinet body (100), two L-shaped sliding rails (170) are arranged on the inner wall of the cabinet body (100), and the two L-shaped sliding rails (170) are symmetrically distributed.

4. An environment-friendly nitrogen insulated cabinet according to claim 3, wherein the air extraction assembly (200) further comprises a clamping hole (220) formed at the bottom of the air extraction pipe (210), a sealing cover (230) hinged with the right side of the air extraction pipe (210), a stud (240) arranged on the left side of the sealing cover (230) and a nut (250) in threaded connection with the stud (240).

5. An environmentally friendly nitrogen insulated cabinet according to claim 4, wherein the first filter screen (212) has smaller pore size than the second filter screen (213).

6. The environment-friendly nitrogen insulated cabinet according to claim 5, further comprising a drying assembly (400), wherein the drying assembly (400) comprises a drying box (410) slidably connected with the L-shaped sliding rail (170), a drying agent (420) placed inside the drying box (410), and a metal grid (430) arranged on the left side of the drying box (410).

7. The nitrogen insulated cabinet of claim 6, wherein the drying assembly (400) comprises an inlet and outlet pipe (440) disposed at the top end of the drying box (410) and a top cover (450) screwed with the inlet and outlet pipe (440).