CN207530333U - A kind of ring main unit - Google Patents

Abstract

The utility model is related to controller switching equipment fields, it discloses a kind of ring main units, include electric panel room and pressure releasing chamber, partition board is provided between electric panel room and pressure releasing chamber, pressure relief device is provided on the partition board, the pressure relief device includes the pressure relief opening being opened on partition board and the seal assembly for closing pressure relief opening, the seal assembly includes sealed base and sealing plate, the sealed base is connected with partition board, and opening is offered on the sealed base, opening and the pressure relief opening of the sealed base are connected to each other.The high pressure gas generated in electric panel room can be open-top by sealing plate; puncture sealing plate and then entered in the pressure releasing chamber of lower section by opening and pressure relief opening; it prevents high pressure gas from causing to damage to electrical indoor electrical equipment, that is, achievees the purpose that protect the electrical equipment in ring network cabinet body and ring main unit.

Description

A kind of ring main unit

Technical field

The utility model is related to controller switching equipment field, more particularly, to a kind of ring main unit.

Background technology

Ring main unit is that one group of transmission ＆ distribution electrical equipment is mounted in metal or non-metallic insulation cabinet or makes assembled compartment ring The electrical equipment of net power supply unit, core component are on-load switch and fuse, on-load switch be responsible for operating normal current and Fuse is responsible for cutting off short circuit current, is widely used in the load centers such as Urban Residential District, skyscraper and factory and enterprise Power distribution station and box-type substation in.

As shown in fig. 6, ring network cabinet body includes several electric panel rooms 1, it is connected by way of splicing between each electric panel room 1 It connects, and closed structure is formed between each electric panel room 1, and electrical equipment is respectively arranged in each electric panel room 1.

In actual use, the electric switch inside ring main unit can generate electric arc in short circuit, and the electric arc of generation draws Detonation is fried so that electrical indoor gas pressure increases suddenly, and the gas of high pressure is to the electrical equipment and ring main unit in compartment Cabinet generates impact or even influences the normal use of ring main unit, and the prior art exists can improvements.

Utility model content

For above-mentioned technical problem, the purpose of this utility model is to provide a kind of ring main unit, by electric panel room and letting out Pressure relief device is set between pressure chamber, and the high pressure gas inside electric panel room can be discharged by pressure relief device in pressure releasing chamber, protected with reaching Protect the purpose of electrical equipment and ring network cabinet body.

To achieve the above object, the utility model provides following technical solution：A kind of ring main unit includes to install The electric panel room of electric switch and the pressure releasing chamber for pressure release, are provided with partition board between the electric panel room and pressure releasing chamber, it is described every It is provided with pressure relief device on plate, the pressure relief device includes the pressure relief opening that is opened on partition board and for closing pressure relief opening Seal assembly, the seal assembly include sealed base and sealing plate, and the sealed base is connected, and described with partition board Opening is offered on sealed base, opening and the pressure relief opening of the sealed base are connected to each other；The sealing plate is embedded at sealing bottom Between seat and partition board, the high pressure gas generated inside the electric panel room is open-top by sealing plate and passes through pressure relief opening and opening enters and lets out In pressure chamber.

By using above-mentioned technical proposal, pressure relief opening is offered on partition board, sealed base, sealing plate are provided at pressure relief opening It is embedded on sealed base, high pressure gas is acted on sealing plate, when gas pressure is excessive, can be punctured sealing plate, electrically Room is connected with pressure releasing chamber；The high pressure gas generated in electric panel room can be open-top by sealing plate, that is, punctures sealing plate and then by opening Mouth and pressure relief opening enter in the pressure releasing chamber of lower section, prevent high pressure gas from causing to damage to electrical indoor electrical equipment, that is, reach guarantor Protect the purpose of ring network cabinet body and the electrical equipment in ring main unit.

The utility model is further arranged to：The sealed base is step structure, i.e., described sealed base and partition board it Between be formed with mounting groove for installing sealing plate, and the sealing plate is embedded cooperation with mounting groove.

By using above-mentioned technical proposal, mounting groove, and sealing plate and the installation are formed between sealed base and partition board Slot is embedded cooperation, and to realize the purpose of fixing seal plate, and mounting means is simple, convenient for construction personnel's installation exercise.

The utility model is further arranged to：The first rubber ring for improving air-tightness is provided in the mounting groove, And first rubber ring is set between sealing plate and partition board.

By using above-mentioned technical proposal, first sealing plate is installed in mounting groove, then the first rubber ring is stacked and placed on close On sealing plate, i.e., the first rubber ring is set between sealing plate and partition board, is played and is improved the airtight of sealing plate and partition board connection The purpose of property.

The utility model is further arranged to：The annular groove for being easily installed sealed base, institute are offered on the partition board It states sealed base and includes embedding part for being embedded cooperation with annular groove, the sealed base being embedded in annular groove Opening be connected to each other with pressure relief opening.

By using above-mentioned technical proposal, annular groove, the embedding part and annular groove of sealed base are opened up on partition board Cooperation is embedded, and when in embedding part insertion annular groove, the opening of sealed base is connected to each other with pressure relief opening, so as to reach just In operating personnel to the purpose that is just open with pressure relief opening, the convenience of installation exercise is improved.

The utility model is further arranged to：The second rubber for improving air-tightness is provided in the annular groove Circle, and second rubber ring is embedded cooperation with annular groove.

By using above-mentioned technical proposal, first the second rubber ring is installed in annular groove, sealed base is again by embedding If portion is installed in annular groove, i.e., the second rubber ring is set between annular groove inner wall and embedding part, plays raising sealing Pedestal and the purpose of the air-tightness of partition board connection.

The utility model is further arranged to：The sealed base, which includes, to be coaxially disposed with embedding part and is used to wear spiral shell The mounting portion of bolt, described its circumferencial direction of mounting portion upper edge are uniformly provided with several mounting holes, and corresponded on the partition board Mounting hole offers spliced eye, and the bolt for fixing the sealed base is arranged in corresponding mounting hole and spliced eye.

By using above-mentioned technical proposal, several mounting holes are offered on the mounting portion of sealed base in advance, on partition board Several spliced eyes are offered, and mounting hole is opened up with spliced eye one-to-one correspondence.Installation personnel is when installing sealed base, by one After mounting hole is connected with corresponding spliced eye by bolt, remaining mounting hole is corresponded with spliced eye, and is installed Mode is simple, is easily installed personnel's installation, improves the convenience of installation sealed base.

The utility model is further arranged to：The pressure releasing chamber includes several compartments, separates vertically between the compartment Isolation board is provided with, communication port is offered on the isolation board, is provided with that be used to implement high pressure gas unidirectional in the communication port The bleeder mechanism of circulation, the bleeder mechanism include elastic panel for blocking communication port and for limiting elastic panel The limit assembly of opening angle, and the elastic panel either end is connected with isolation board by bolt.

By using above-mentioned technical proposal, the indoor high pressure gas of pressure release is drained by pressure relief device and is arranged via bleeder mechanism In to multiple compartments, that is, play the role of partial pressure, reduce direct percussion of the high pressure gas to ring network cabinet body.High pressure gas Elastic panel can be started, and entered in adjacent compartment from recirculation hole, and limit assembly plays limitation elastic panel and opens The effect of angle prevents elastic panel from irreversible Bending Deformation occurring due to opening angle is excessive, plays protection elastic panel Effect.

The utility model is further arranged to：The limit assembly includes the Buddhist nun for limiting elastic panel opening angle Imperial block and the connecting rod being fixedly connected on isolation board, the nylon block is threadedly coupled with connecting rod, and the nylon The interval opened for elastic panel is provided between block and elastic panel.

By using above-mentioned technical proposal, push elastic panel open when high pressure gas and enter another compartment from a compartment When, elastic panel can occur to bend deformation, and limit assembly plays the role of limiting elastic panel opening angle, that is, the bullet opened Property plate be connected on nylon block, with achieve the purpose that limit elastic panel opening angle；And nylon block and connecting rod It is threadedly coupled, mounting means is simple, is easily installed personnel's installation exercise.

The utility model is further arranged to：The elastic panel upper end is uniformly provided with several bendings in the horizontal direction Slot, and it is located at bending slot upper end for fixing the bolt of the elastic panel.

By using above-mentioned technical proposal, upper end and the isolation board of elastic panel, which are worn, is connected with bolt, and in junction Lower section uniformly open up several bending slots in the horizontal direction.Bending slot is opened up in order to high pressure gas smoothly open-top elastic plate Part；Bolt is arranged in the upper end of elastic panel, then elastic panel can soon be replied immediately under itself anti deformational force and gravity collective effect Position.

The utility model is further arranged to：It is arranged with to increase contact for fixing on the bolt of the sealed base The plain washer of area and the spring washer for being bonded.

By using above-mentioned technical proposal, plain washer plays the role of increasing the contact area of nut and sealed base, bullet Spring washer then plays locking effect, to achieve the purpose that improve the connective stability of sealed base.

In conclusion the utility model has the advantages that：

Electrical indoor high pressure gas can puncture sealing plate, and pass through the pressure releasing chamber of pressure relief opening and opening entrance lower section It is interior, and entered in compartment by bleeder mechanism into the indoor high pressure gas of pressure release, play the role of further partial pressure, so as to reach The purpose of electrical equipment inside to protection ring network cabinet body and ring main unit.

Description of the drawings

Fig. 1 is the overall structure diagram of ring main unit；

Fig. 2 is the explosive view of pressure relief device；

Fig. 3 is the structure diagram of bleeder mechanism；

Fig. 4 is the structure diagram of limit assembly；

Fig. 5 is the structure diagram for showing plain washer and spring washer；

Fig. 6 is prior art attached drawing.

Reference numeral：1st, electric panel room；2nd, pressure releasing chamber；21st, compartment；22nd, isolation board；221st, communication port；3rd, partition board；31st, ring Connected in star；311st, the second rubber ring；32nd, spliced eye；4th, pressure relief device；41st, pressure relief opening；42nd, seal assembly；421st, sealing plate； 422nd, sealed base；423rd, it is open；424th, embedding part；425th, mounting portion；426th, mounting hole；5th, mounting groove；51st, the first rubber Circle；6th, bleeder mechanism；61st, elastic panel；62nd, limit assembly；621st, connecting rod；622nd, nylon block；7th, bending slot；8th, plain cushion Circle；9th, spring washer.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.

As shown in Figure 1, a kind of ring main unit, includes to set the electric panel room 1 of electric switch and be set to electric panel room 1 The pressure releasing chamber 2 of lower section, horizontal subdivision is provided with partition board 3 between electric panel room 1 and pressure releasing chamber 2, and is provided with pressure relief device on partition board 3 4.When the electric switch in electric panel room 1 occurs short circuit and the gas pressure in electric panel room 1 is caused to increase suddenly, high pressure gas can It is drained into the pressure releasing chamber 2 of lower section by pressure relief device 4, to reach the mesh of electrical equipment and ring network cabinet body in protection ring main unit 's.

As shown in Fig. 2, above-mentioned pressure relief device 4 includes the pressure relief opening 41 that is opened on partition board 3 and for closing pressure release The seal assembly 42 of mouth 41, seal assembly 42 need higher air-tightness, to prevent the gas to electric panel room 1 in normal work Close property impacts；With reference to shown in Fig. 1, and when carrying out blowout job, high pressure gas can pass through pressure relief opening 41 and sealing group again Part 42 enters in the pressure releasing chamber 2 of lower section.

As shown in Fig. 2, above-mentioned seal assembly 42 includes sealing plate 421 for closing pressure relief opening 41 and for installing The sealed base 422 of fixing seal plate 421, sealed base 422 are circular ring structure, i.e. 422 center of sealed base offers one and opens Mouth 423, and opening 423 is connected to each other with pressure relief opening 41, high pressure gas can pass through pressure relief opening 41 and opening 423 carries out pressure releases.

Sealed base 422 and sealing plate 421 are installed for the ease of assembler, as shown in Fig. 2, being opened up in aforementioned barriers 3 There is annular groove 31, sealed base 422 includes the embedding part 424 and and embedding part for being embedded cooperation with annular groove 31 424 are coaxially disposed and are used to wear the mounting portion 425 of bolt, and embedding part 424 and mounting portion 425 are circular ring structure, and are installed Portion's its circumferencial direction of 425 upper edge is uniformly provided with several mounting holes 426, and correspond at mounting hole 426 and offer on partition board 3 Spliced eye 32, mounting hole 426 and spliced eye 32, which are worn, is connected with bolt so as to fixing seal pedestal 422.It is embedded when leading the portion of setting 424 When in annular groove 31, opening 423 and the pressure relief opening 41 of sealed base 422 are connected to each other, and mounting hole 426 and 32 phase of spliced eye Docking, to achieve the purpose that convenient for location and installation.Above-mentioned sealed base 422 is step structure, i.e. sealed base 422 and partition board 3 Between be formed with mounting groove 5 for installing sealing plate 421, sealing plate 421 is embedded cooperation with mounting groove 5, so as to complete to close The installation exercise of back cover seat 422 and sealing plate 421.

As shown in Fig. 2, in order to reach the leakproofness and sealed base that improve between sealing plate 421 and sealed base 422 The purpose of leakproofness between 422 and partition board 3 is provided with the first rubber ring 51 in above-mentioned mounting groove 5, i.e. the first rubber ring 51 presss from both sides Between sealing plate 421 and partition board 3；The second rubber ring 311, and the second rubber ring 311 are provided in above-mentioned annular groove 31 Cooperation is embedded with annular groove 31.With reference to shown in Fig. 5, it is arranged with to increase on the above-mentioned bolt for fixing seal pedestal 422 The plain washer 8 of large access area and for locking spring washer 9.

In order to further achieve the purpose that the high pressure gas entered in pressure releasing chamber 2 is divided, with reference to shown in Fig. 1 and Fig. 3, on It states pressure releasing chamber 2 and includes several compartments 21, separate vertically between compartment 21 and be provided with isolation board 22, and offered on isolation board 22 Communication port 221.The bleeder mechanism 6 for being used to implement high pressure gas one-way flow is provided in communication port 221, bleeder mechanism 6 includes It is useful for blocking the elastic panel 61 of communication port 221 and the limit assembly 62 for limiting 61 opening angle of elastic panel, and The upper end of elastic panel 61 is connected with isolation board 22 by bolt, i.e., into the high pressure gas in compartment 21 by elastic panel 61 It is open-top and pass through communication port 221 and enter in adjacent compartment 21, to realize the purpose that further divides.

With reference to shown in Fig. 3 and Fig. 4, the opening angle of elastic panel 61 is limited by limit assembly 62, and then reaches and prevents The purpose of gas backstreaming phenomenon occurs at communication port 221.Limit assembly 62 includes to limit 61 opening angle of elastic panel Nylon block 622 and the connecting rod 621 that is fixedly connected on isolation board 22, and connecting rod 621 is perpendicular to isolation board 22；Buddhist nun Imperial block 622 is threadedly coupled with connecting rod 621, and is provided between nylon block 622 and elastic panel 61 for elastic panel 61 The interval of opening, i.e. flexible gas can open under high pressure gas effect and be connected on nylon block 622.

As shown in figure 3, for the ease of high pressure gas smoothly open-top elastic panel 61, the upper end edge of above-mentioned elastic panel 61 Horizontal direction is uniformly provided with several bending slots 7, and is located at 7 upper end of bending slot for fixing the bolt of the elastic panel 61.

The utility model is further elaborated with reference to specific action：

After the high pressure gas in electric panel room 1 punctures sealing plate 421, high pressure gas can pass through opening 423 and pressure relief opening 41 enter in the compartment 21 in the pressure releasing chamber 2 of lower section；When excessive into the gas pressure in compartment 21, elastic panel 61 can be pushed up It opens and is connected on nylon block 622, and then entered in adjacent compartment 21 by communication port 221, it is further so as to reach The purpose of partial pressure, with the progress of partial pressure；When the gas pressure in compartment 21 is begun to decline, elastic panel 61 fall after rise and again Communication port 221 is closed, so as to complete entire blowout job.

This specific embodiment is only explanation to the utility model, is not the limitation to the utility model, ability Field technique personnel can as needed make the present embodiment the modification of no creative contribution after this specification is read, but As long as it is all protected in the right of the utility model by Patent Law.

Claims (10)

1. a kind of ring main unit, it is characterised in that：A kind of ring main unit includes the electric panel room for installing electric switch（1）And For the pressure releasing chamber of pressure release（2）, the electric panel room（1）With pressure releasing chamber（2）Between be provided with partition board（3）, the partition board（3）On set It is equipped with pressure relief device（4）, the pressure relief device（4）Include and be opened in partition board（3）On pressure relief opening（41）And for closing Pressure relief opening（41）Seal assembly（42）, the seal assembly（42）Include sealing plate（421）And sealed base（422）, The sealed base（422）With partition board（3）It is connected, and the sealed base（422）On offer opening（423）, it is described close Back cover seat（422）Opening（423）With pressure relief opening（41）It is connected to each other；The sealing plate（421）It is embedded at sealed base（422）With Partition board（3）Between, the electric panel room（1）The high pressure gas that inside generates is by sealing plate（421）It is open-top and pass through pressure relief opening（41） And opening（423）Into pressure releasing chamber（2）It is interior.

2. a kind of ring main unit according to claim 1, it is characterised in that：The sealed base（422）For step structure, i.e., The sealed base（422）With partition board（3）Between be formed with that sealing plate is installed（421）Mounting groove（5）, and the sealing Plate（421）With mounting groove（5）It is embedded cooperation.

3. a kind of ring main unit according to claim 2, it is characterised in that：The mounting groove（5）It is inside provided with to improve First rubber ring of air-tightness（51）, and first rubber ring（51）It is set to sealing plate（421）With partition board（3）Between.

4. a kind of ring main unit according to claim 2, it is characterised in that：The partition board（3）On offer be easily installed it is close Back cover seat（422）Annular groove（31）, the sealed base（422）Include and be used for and annular groove（31）It is embedded cooperation Embedding part（424）, it is embedded at annular groove（31）The interior sealed base（422）Opening（423）With pressure relief opening（41）Phase Docking.

5. a kind of ring main unit according to claim 4, it is characterised in that：The annular groove（31）It is inside provided with to carry Second rubber ring of high-air-tightness（311）, and second rubber ring（311）With annular groove（31）It is embedded cooperation.

6. a kind of ring main unit according to claim 4, it is characterised in that：The sealed base（422）Include and be embedded Portion（424）It is coaxially disposed and is used to wear the mounting portion of bolt（425）, the mounting portion（425）Its circumferencial direction of upper edge is uniform Offer several mounting holes（426）, and the partition board（3）On correspond to mounting hole（426）Offer spliced eye（32）, it is used for The fixed sealed base（422）Bolt be arranged in corresponding mounting hole（426）And spliced eye（32）It is interior.

7. a kind of ring main unit according to claim 1, it is characterised in that：The pressure releasing chamber（2）Include several compartments （21）, the compartment（21）Between vertically separate be provided with isolation board（22）, the isolation board（22）On offer communication port （221）, the communication port（221）On be provided with the bleeder mechanism for being used to implement high pressure gas one-way flow（6）, the partial pressure dress It puts（6）Include to block communication port（221）Elastic panel（61）And for limiting elastic panel（61）Opening angle Limit assembly（62）, and the elastic panel（61）Either end and isolation board（22）It is connected by bolt.

8. a kind of ring main unit according to claim 7, it is characterised in that：The limit assembly（62）Include to limit Elastic panel（61）The nylon block of opening angle（622）And it is fixedly connected on isolation board（22）On connecting rod（621）, institute State nylon block（622）With connecting rod（621）It is threadedly coupled, and the nylon block（622）With elastic panel（61）Between set It is equipped with for elastic panel（61）The interval of opening.

9. a kind of ring main unit according to claim 7, it is characterised in that：The elastic panel（61）Upper end is in the horizontal direction It is uniformly provided with several bending slots（7）, and for fixing the elastic panel（61）Bolt be located at bending slot（7）Upper end.

10. a kind of ring main unit according to claim 1, it is characterised in that：For fixing the sealed base（422）Spiral shell The plain washer for increasing contact area is arranged on bolt（8）And the spring washer for being bonded（9）.