CN216868159U - Online monitoring automatic air supply device for SF6 equipment of mobile substation - Google Patents

Abstract

The utility model discloses an online monitoring automatic air supplement device for a mobile substation SF6 device, which comprises a control panel, a device frame body, a power supply and an air supplement mechanism, wherein a push handle is arranged on the top surface of one end of the device frame body, the control panel is fixed above the push handle, a base is arranged at the bottom of the device frame body, the power supply is arranged between the device frame body and the base, a charging connector is arranged on one side of the power supply, and a universal wheel is arranged on the front side of the bottom of the base. According to the utility model, through the combination of the direction wheels and the ladder climbing wheels, the movement is convenient, the labor is saved, and workers only need to connect the air supply port with SF6 equipment on site, so that the operation time is reduced, and the air supply efficiency is improved; possess the automatic air supplement function, the tonifying qi personnel only need control button can realize quick tonifying qi, has solved the trouble of artifical manual tonifying qi, has reduced the not stable safe risk who produces of tonifying qi pressure simultaneously, has improved the precision of tonifying qi, has solved the first problem that the gassing caused SF6 gas waste of tonifying qi personnel.

Description

Online monitoring automatic air supply device for SF6 equipment of mobile substation

Technical Field

The utility model relates to the field of transformer substations, in particular to an online monitoring automatic air supply device for a movable transformer substation SF6 device.

Background

With the expansion of the scale of the power grid, the SF6 equipment becomes a main equipment of the substation due to excellent insulation and arc extinguishing performance. During the use of the SF6 device, the following problems exist:

firstly, most of the existing transformer substations are unattended, SF6 equipment air chambers are greatly influenced by weather and environment, pressure changes easily occur to the air chambers, especially in cold winter, the switch and disconnecting link air chambers of the transformer substations frequently give alarms under low pressure, operation and maintenance personnel need to go to the site for key inspection, and operation and maintenance working pressure is increased;

secondly, the existing air supply method is single, and the air supply method adopted by the maintainers is that after the pressure of an air bottle filled with SF6 gas with higher pressure is reduced by a pressure reducing valve, the air bottle is directly connected to SF6 electrical equipment through a rubber hose for air supply. The method has the problems of complex preparation work, poor pipeline universality, inconvenient gas cylinder carrying and the like, so that the gas supplementing work efficiency is low, and the gas supplementing precision is difficult to master;

thirdly, the position of the transformer substation is relatively far away, the time required by a maintainer after receiving the gas supplementing notice to complete one-time gas supplementing is long, the hidden danger degree of equipment is increased, the insulation performance of a switch and a disconnecting link is reduced when the pressure of a gas chamber is low, and equipment explosion can be caused for a long time;

fourthly, some air chambers tonifying qi degree of difficulty is big, and a week needs the tonifying qi once, in order to keep watch on the air chamber pressure value, the maintainer can only the scene installation camera, frequent tonifying qi in earlier stage, and corresponding switch or switch equipment are changed to the later stage combination power failure plan, have increased maintainer's operating pressure.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an online monitoring automatic air supplement device for a mobile substation SF6 device, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a portable SF6 equipment on-line monitoring automatic air supplement unit of transformer substation, includes control panel, device framework, power and tonifying qi mechanism, the top surface of device framework one end is equipped with pushes away the handle, control panel is fixed in the top of pushing away the handle, the bottom of device framework is equipped with the base, and is equipped with the power between device framework and the base, one side of power is equipped with the joint that charges, the bottom front side of base is equipped with the universal wheel, the bottom rear side of base is equipped with the cat ladder wheel, the one side that pushes away the handle was kept away from to the device framework is equipped with the intermediate layer that the baffle constitutes, the inside gas cylinder that is equipped with of intermediate layer, be equipped with the manometer on the gas cylinder, the gas cylinder passes through the bandage and is fixed with the device framework, and the gas cylinder passes through intake pipe and tonifying qi mechanism intercommunication, tonifying qi mechanism is located the intermediate layer and keeps away from the one side that pushes away from the handle.

Further, tonifying qi mechanism includes the box, the top surface of box is equipped with the air inlet, and the intake pipe passes the inside that the air inlet stretched into the box.

Further, the one end department of box is equipped with the gas outlet, it is equipped with the outlet duct to alternate on the gas outlet, the one end that the box was kept away from to the outlet duct is equipped with the tonifying qi mouth.

Further, the inside of box is equipped with operation analysis module and consecutive relief pressure valve, first density relay, control solenoid valve, first valve, second density relay and check valve, the relief pressure valve communicates with the air inlet, check valve and outlet duct intercommunication.

Furthermore, a second valve, a vacuum gauge and a vacuum pump which are communicated are sequentially arranged between the control electromagnetic valve and the second density relay, and the second valve is communicated with the second density relay.

Furthermore, a liquid crystal display is arranged on the control panel, and the operation analysis module is electrically connected with the first density relay, the second density relay, the first valve and the second valve.

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

according to the utility model, through the combination of the direction wheels and the ladder climbing wheels, the movement is convenient, the labor is saved, and workers only need to connect the air supplementing port with SF6 equipment on site, so that the operation time is reduced, and the air supplementing efficiency is improved;

the automatic air replenishing device has the automatic air replenishing function, and air replenishing personnel can realize quick air replenishing only by controlling the button, so that the trouble of manual air replenishing is solved, the safety risk caused by unstable air replenishing pressure is reduced, the air replenishing precision is improved, and the problem of SF6 gas waste caused by air replenishing and air releasing of the air replenishing personnel is solved;

install the manometer on the gas cylinder, this table can real-time supervision gas cylinder pressure value, and the gaseous content of SF6 in the real-time supervision gas cylinder accomplishes in time to change. The real-time monitoring of the equipment pressure value is realized through the operation analysis module, and the equipment pressure value is uploaded to a terminal, so that operation and maintenance personnel can monitor the equipment pressure change in real time;

the automatic air supply device can be fixedly arranged at an equipment interval needing frequent air supply, and automatically starts air supply when the equipment pressure is lower than the lower limit, so that frequent running of air supply personnel on site is not needed, and the working pressure of the staff is reduced.

Drawings

Fig. 1 is a schematic structural diagram of an online monitoring automatic gas supplementing device of a mobile substation SF6 device;

fig. 2 is a schematic diagram of an internal structure of an air supply mechanism in an online monitoring automatic air supply device of a mobile substation SF6 device.

In the figure: 1. a control panel; 2. a push handle; 3. a device frame body; 4. a partition plate; 5. ladder climbing wheels; 6. a charging connector; 7. a universal wheel; 8. a base; 9. a power source; 10. a gas supplementing mechanism; 11. an air inlet pipe; 12. a pressure gauge; 13. a gas cylinder; 14. a liquid crystal display; 15. an air outlet pipe; 16. an air inlet; 17. a pressure reducing valve; 18. a first density relay; 19. a vacuum pump; 20. a vacuum gauge; 21. controlling the electromagnetic valve; 22. a first valve; 23. a second density relay; 24. a check valve; 25. an air outlet; 26. a second valve; 27. an operation analysis module; 28. an air supplement port; 29. binding bands; 30. and (4) a box body.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution:

the utility model provides a portable SF6 equipment on-line monitoring automatic air supplement unit of transformer substation, including control panel 1, device framework 3, power 9 and tonifying qi mechanism 10, the top surface of device framework 3 one end is equipped with pushes away 2, control panel 1 is fixed in and pushes away the top of 2, the bottom of device framework 3 is equipped with base 8, and be equipped with power 9 between device framework 3 and the base 8, one side of power 9 is equipped with the joint 6 that charges, the bottom front side of base 8 is equipped with universal wheel 7, the bottom rear side of base 8 is equipped with cat ladder wheel 5, one side that device framework 3 kept away from to push away 2 is equipped with the intermediate layer that baffle 4 constitutes, the inside gas cylinder 13 that is equipped with of intermediate layer, be equipped with manometer 12 on the gas cylinder 13, gas cylinder 13 passes through bandage 29 and device framework 3 is fixed, and gas cylinder 13 passes through intake pipe 11 and tonifying qi mechanism 10 intercommunication, tonifying qi mechanism 10 is located the intermediate layer and keeps away from one side of pushing away from 2.

The air supply mechanism 10 comprises a box body 30, an air inlet 16 is arranged on the top surface of the box body 30, an air inlet pipe 11 penetrates through the air inlet 16 and extends into the box body 30, an air outlet 25 is arranged at one end of the box body 30, an air outlet pipe 15 is inserted on the air outlet 25, an air supply port 28 is arranged at one end, far away from the box body 30, of the air outlet pipe 15, an operation analysis module 27 and a pressure reducing valve 17, a first density relay 18, a control electromagnetic valve 21, a first valve 22, a second density relay 23 and a check valve 24 are sequentially arranged in the box body 30, the pressure reducing valve 17 is communicated with the air inlet 16, the check valve 24 is communicated with the air outlet pipe 15, a second valve 26, a vacuum gauge 20 and a vacuum pump 19 are sequentially arranged between the control electromagnetic valve 21 and the second density relay 23, a liquid crystal display 14 is arranged on the control panel 1, and the operation analysis module 27 and the first density relay 18 are sequentially communicated with each other, The second density relay 23, the first valve 22 and the second valve 26 are electrically connected.

The working principle is as follows:

the operator holds the push handle 2 by hand, realizes the movement on the flat ground through the universal wheel 7 in front of the device, and pulls the push handle 2 by hand when encountering stairs, and goes upstairs and downstairs by depending on the ladder climbing wheel 5 at the back; when the device moves to an interval needing air supplement, an air supplement port 28 of the device is connected with SF6 equipment to be inflated, a rated pressure value of the SF6 equipment is input through a liquid crystal display 14 on a control panel 1, an air supplement button of the control panel 1 is pressed for air supplement, and when the air pressure reaches a set value, an operation analysis module 27 detects the pressure value and controls a first valve 22 to be closed and controls a check valve 24 to be opened; when the SF6 equipment needs to be vacuumized, a vacuum button of the control panel 1 is pressed, the vacuum pump 19 is started, and SF6 gas is recycled into the SF6 gas cylinder 13 through a pipeline. In addition, for the equipment that needs to combine the planned replacement of power failure, often the tonifying qi is needed as the temporary measure, if once a week tonifying qi, the device can be connected on SF6 equipment for a long time, and operation analysis module 27 can the automated inspection pressure value, can open the tonifying qi function automatically when the pressure is less than the setting value, stops automatically when reaching the rated value. In addition, the operation analysis module 27 also has the functions of storage and transmission, and can monitor the pressure value in real time and upload the data to the handheld mobile terminal or the background machine through 5G.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which includes the appended claims and their equivalents.

Claims (6)

1. The utility model provides a portable SF6 equipment on-line monitoring automatic air supplement unit of transformer substation, includes control panel (1), device framework (3), power (9) and tonifying qi mechanism (10), its characterized in that: the device is characterized in that a push handle (2) is arranged on the top surface of one end of the device frame body (3), the control panel (1) is fixed above the push handle (2), a base (8) is arranged at the bottom of the device frame body (3), a power supply (9) is arranged between the device frame body (3) and the base (8), a charging connector (6) is arranged on one side of the power supply (9), universal wheels (7) are arranged on the front side of the bottom of the base (8), ladder wheels (5) are arranged on the rear side of the bottom of the base (8), an interlayer formed by partition plates (4) is arranged on one side, away from the push handle (2), of the device frame body (3), a gas cylinder (13) is arranged inside the interlayer, a pressure gauge (12) is arranged on the gas cylinder (13), the gas cylinder (13) is fixed with the device frame body (3) through a binding belt (29), and the gas cylinder (13) is communicated with a gas supplementing mechanism (10) through an air inlet pipe (11), the air supply mechanism (10) is positioned on one side of the interlayer, which is far away from the push handle (2).

2. The online monitoring automatic gas supplementing device for the SF6 equipment of the mobile substation of claim 1, wherein: the air supply mechanism (10) comprises a box body (30), an air inlet (16) is formed in the top surface of the box body (30), and an air inlet pipe (11) penetrates through the air inlet (16) and extends into the box body (30).

3. The online monitoring automatic gas supplementing device for the SF6 equipment of the mobile substation of claim 2, wherein: one end department of box (30) is equipped with gas outlet (25), it is equipped with outlet duct (15) to alternate on gas outlet (25), the one end that box (30) were kept away from in outlet duct (15) is equipped with tonifying qi mouth (28).

4. The automatic air supply device for online monitoring of mobile substation SF6 equipment of claim 3, wherein: the inside of box (30) is equipped with operation analysis module (27) and consecutive relief pressure valve (17), first density relay (18), control solenoid valve (21), first valve (22), second density relay (23) and check valve (24), relief pressure valve (17) and air inlet (16) intercommunication, check valve (24) and outlet duct (15) intercommunication.

5. The online monitoring automatic gas supplementing device for the SF6 equipment of the mobile substation of claim 4, wherein: and a second valve (26), a vacuum gauge (20) and a vacuum pump (19) which are communicated are sequentially arranged between the control electromagnetic valve (21) and the second density relay (23), and the second valve (26) is communicated with the second density relay (23).

6. The online monitoring automatic gas supplementing device for the SF6 equipment of the mobile substation of claim 5, wherein: the control panel (1) is provided with a liquid crystal display (14), and the operation analysis module (27) is electrically connected with the first density relay (18), the second density relay (23), the first valve (22) and the second valve (26).

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