CN110410661B - Quick air supplement unit of sulfur hexafluoride gas insulation equipment - Google Patents

Quick air supplement unit of sulfur hexafluoride gas insulation equipment Download PDF

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Publication number
CN110410661B
CN110410661B CN201910702814.2A CN201910702814A CN110410661B CN 110410661 B CN110410661 B CN 110410661B CN 201910702814 A CN201910702814 A CN 201910702814A CN 110410661 B CN110410661 B CN 110410661B
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China
Prior art keywords
air
gas
sulfur hexafluoride
sealing sleeve
pipe
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CN201910702814.2A
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CN110410661A (en
Inventor
杨云
谢光彬
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Yibin Power Supply Co Of Sichuan Electric Power Corp
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Yibin Power Supply Co Of Sichuan Electric Power Corp
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/002—Details of vessels or of the filling or discharging of vessels for vessels under pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/06—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed gases
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/03—Orientation
    • F17C2201/032—Orientation with substantially vertical main axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/056—Small (<1 m3)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/035—High pressure (>10 bar)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0107—Single phase
    • F17C2225/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/03—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the pressure level
    • F17C2225/035—High pressure, i.e. between 10 and 80 bars
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/01—Propulsion of the fluid
    • F17C2227/0128—Propulsion of the fluid with pumps or compressors
    • F17C2227/0135—Pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/03—Dealing with losses
    • F17C2260/035—Dealing with losses of fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/05—Applications for industrial use

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Gas-Insulated Switchgears (AREA)

Abstract

The invention discloses a quick air supplement device for sulfur hexafluoride gas insulation equipment, which comprises a gas tank and a waste gas collecting device which is arranged at the lower part of the gas tank and can actively suck, wherein the gas tank is provided with an air supplement pipe for supplementing air for the sulfur hexafluoride gas insulation equipment, a pressure reducing valve is arranged on the air supplement pipe, a sealing sleeve is sleeved outside the air supplement pipe, the free end of the sealing sleeve is provided with an outer cover, one end surface of the outer cover seals the sealing sleeve, the middle part of the other end surface is inwards concave to form a groove body matched with the shape of an air inlet of the equipment to be supplemented, the middle part of the groove body is provided with a through hole for the air supplement pipe to pass through, and the periphery of the through hole is also provided with air suction holes which are arranged in an annular array; one end of the sealing sleeve is communicated with an exhaust pipe, and the exhaust pipe is communicated with a waste gas collecting device capable of actively sucking. The invention stops the leakage of sulfur hexafluoride gas by arranging the air extractor with an ingenious structure at the interface, so that the air supplementing process can be smoothly carried out, the occurrence of equipment abnormity and power failure accidents is avoided, the power supply reliability is improved, and the invention has great popularization value.

Description

Quick air supplement unit of sulfur hexafluoride gas insulation equipment
Technical Field
The invention relates to the technical field of power equipment, in particular to a quick air supplement device for sulfur hexafluoride gas insulation equipment.
Background
With the continuous increase of economy, the power grid equipment in China is rapidly developing. In recent years, the construction of the global energy Internet of the national grid company is accelerated, and SF is promoted6The equipment is widely applied to 220kV, 110kV and 35kV voltage levels in the transformer substation due to the characteristics of small size, reliability, stable operation and the like. SF6The number of equipment manufacturers is large, the types of equipment are various, and at present, the mainstream manufacturers include Henan Ping high electric power, Shenyang new northeast electric power, Shandong Tai Ke electric power, Shanghai Siyuan electric power and the like. At present, the interface specifications of equipment of various manufacturers are not uniform, so that SF is formed6The equipment is the arrangement of a gas supplementing joint.
The conventional gas supply device comprises SF6The gas supply system comprises a gas cylinder, a gas supply joint, a pressure reducing valve, a gas supply pipe and the like, wherein when a maintainer supplies gas to equipment, the gas supply joint and the equipment joint must be matched so as to ensure that the gas supply system has good gas tightness. In actual operation on site, after air supplement is completed, sulfur hexafluoride gas leakage is avoided in the process of pulling out the equipment jointWhen corona discharge is generated in an electric field, sulfur hexafluoride gas can decompose nearly ten gases such as sulfurous fluoride, sulfuric fluoride, disulfur decafluoride, sulfur dioxide, sulfur fluoride, hydrofluoric acid and the like. These fluorine and sulfide gases are not only toxic, but also many are corrosive. For example, for insulating materials such as aluminum alloy, porcelain insulators, glass epoxy resin and the like, the structures of the insulating materials can be damaged; has strong stimulation and toxic action on human body and respiratory system. Therefore, how to avoid sulfur hexafluoride gas leakage in the process of pulling out the joint after the gas supply is completed is a difficult problem to be solved urgently.
Disclosure of Invention
The invention aims to provide a quick air supply device for sulfur hexafluoride gas insulation equipment, which can not generate sulfur hexafluoride gas leakage in the process of pulling out a joint after air supply is finished.
The invention is realized by the following technical scheme: a quick air supplement device for sulfur hexafluoride gas insulation equipment comprises a gas tank and a waste gas collecting device which is arranged at the lower part of the gas tank and can actively suck, wherein the gas tank is provided with an air supplement pipe for supplementing air for the sulfur hexafluoride gas insulation equipment, a pressure reducing valve is arranged on the air supplement pipe, a sealing sleeve is sleeved outside the air supplement pipe, the free end of the sealing sleeve is provided with an outer cover, one end face of the outer cover seals the sealing sleeve, the middle part of the other end face is inwards concave to form a groove body matched with the shape of an air inlet of the equipment needing air supplement, the middle part of the groove body is provided with a through hole for the air supplement pipe to pass through, and the periphery of the through hole is also provided with air suction holes which are arranged in an annular array; one end of the sealing sleeve is communicated with an exhaust pipe, and the exhaust pipe is communicated with a waste gas collecting device capable of actively sucking.
The operating principle of the technical scheme is that a section of sealing sleeve is sleeved outside the air supplementing pipe, the sealing sleeve is connected with an exhaust pipe, the exhaust pipe and a waste gas collecting device have a suction function, the negative pressure state in the sealing sleeve can be kept, the other end of the sealing sleeve is connected with an outer cover, when the air supplementing pipe is used for supplementing sulfur hexafluoride gas to the insulating equipment, the outer cover is sleeved outside an air inlet of the insulating equipment, and the air supplementing pipe penetrates through a through hole in the middle of the outer cover and is connected with the air inlet of the insulating equipment. Because the sealing sleeve is in a negative pressure state, gas can be continuously absorbed through the air suction holes in the outer cover, when the air supplement pipe is pulled out, leaked sulfur hexafluoride gas can be sucked into the sealing sleeve through the air suction holes in the outer cover, finally enters the waste gas collecting device through the air suction pipe, and finally the waste gas collected by the waste gas collecting device is purified again to obtain pure sulfur hexafluoride gas.
In order to better realize the invention, further, the waste gas collecting device mainly comprises a second air bag arranged below the inner part of the air tank and a suction pump arranged below the air tank; a first air bag containing pure sulfur hexafluoride gas is arranged above the inner part of the air tank, and the first air bag is in close contact with the second air bag; the air pump is communicated with the second air bag and pumps the gas in the sealing sleeve into the second air bag through the air pumping pipe to be stored.
In order to better realize the invention, further, an opening extending out of the tank at the upper part of the first air bag is provided with a control valve, the control valve is a three-way valve with a knob handle at the upper part, a lower valve port is connected with the opening of the first air bag, a left valve port is connected with a barometer for displaying the air pressure in the first air bag, and a right valve port is connected with an air supplement pipe.
In order to better realize the invention, the outer cover and the sealing sleeve are further connected through threads to seal the inside of the sealing sleeve.
In order to better realize the invention, a base is further arranged below the gas tank, the air pump is arranged in the base, and a control switch of the air pump is arranged on the surface of the base.
In order to better realize the invention, the exhaust pipe is further provided with an on-off valve.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) according to the invention, the air extractor with an ingenious structure is arranged at the interface, so that the leakage of sulfur hexafluoride gas can be completely avoided, the gas supplementing process can be smoothly carried out, the occurrence of equipment abnormity and power failure accidents is avoided, and the power supply reliability is improved;
(2) according to the invention, the collected waste gas is the sulfur hexafluoride gas in the gas pipe, the output of the collected waste gas is kept stable, the gas pressure can be kept stable, all the sulfur hexafluoride gas in the gas tank can be fully utilized, the utilization rate of the sulfur hexafluoride gas in the gas tank is improved, the gas supplementing time is improved through phase change, and the working efficiency is improved;
(3) the invention has simple structure, reasonable design and convenient use, can not generate sulfur hexafluoride gas leakage in the process of completing gas supply of the insulating equipment and pulling out the joint, and has popularization value.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of a portion of the structure of the present invention;
fig. 3 is an enlarged schematic view of a part of the structure of the present invention.
Wherein: the air-suction type air-suction device comprises an air tank 1, a control valve 2, a barometer 3, a pressure reducing valve 4, a sealing sleeve 5, an air supplementing pipe 6, an outer cover 7, an air suction pipe 8, a first air bag 9, an air suction pump 10 and a second air bag 11.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
the main structure of this embodiment, as shown in fig. 1 and 3, includes a gas tank 1 and a waste gas collecting device disposed below the gas tank 1 and capable of actively sucking, where the gas tank 1 is provided with a gas supplementing pipe 6 for supplementing gas to sulfur hexafluoride gas insulation equipment, the gas supplementing pipe 6 is provided with a pressure reducing valve 4, the outside of the gas supplementing pipe 6 is sleeved with a sealing sleeve 5, the free end of the sealing sleeve 5 is provided with an outer cover 7, one end face of the outer cover 7 seals the sealing sleeve 5, the middle part of the other end face is recessed to form a groove body matched with the shape of a gas inlet of the equipment to be supplemented, the middle part of the groove body is provided with a through hole for the gas supplementing pipe 6 to pass through, and the periphery of the through hole is further provided with gas suction holes arranged in an annular array; one end of the sealing sleeve 5 is communicated with an exhaust pipe 8, and the exhaust pipe 8 is communicated with a waste gas collecting device capable of actively sucking.
The specific implementation mode is that when sulfur hexafluoride gas is supplemented to the insulation equipment, the outer cover 7 is fixed at one end of the sealing sleeve 5, the gas supplementing pipe 6 is arranged in the sealing sleeve 5 and extends out of a through hole in the middle of the outer cover 7, the gas supplementing pipe 6 is connected with a gas inlet of an insulation device, the gas inlet of the insulation device is sleeved in a groove of the outer cover 7, the insulation device supplements the sulfur hexafluoride gas, and at the moment, the waste gas collecting device can not be started (or can be started); after the insulation device finishes supplying sulfur hexafluoride gas, the waste gas collecting device is started (if the insulation device is started all the time, the waste gas collecting device does not need to be started), the waste gas collecting device has the functions of sucking gas and storing waste gas, at the moment, the waste gas collecting device collects the gas to enable the interior of the sealing sleeve 5 to be kept in a negative pressure state through the exhaust pipe 8, the gas suction hole of the outer cover 7 starts to absorb the gas, the gas supply pipe 6 and the gas inlet of the insulation device are disconnected, leakage of the sulfur hexafluoride gas can occur at the moment, the leaked sulfur hexafluoride gas can be sucked into the sealing sleeve 5 through the gas suction hole of the outer cover 7, and then the leaked sulfur hexafluoride gas is sucked into the waste gas collecting device through the exhaust pipe 8. After the sulfur hexafluoride gas is disconnected, the sulfur hexafluoride gas can be prevented from leaking by continuously adsorbing for 10-20 s. If the exhaust gas collecting device is continuously started, the risk of sulfur hexafluoride gas leakage can be reduced.
Example 2:
this embodiment further defines an exhaust gas collecting means, based on the above-described embodiment, which is mainly composed of a second air bag 11 disposed below the inside of the gas tank 1, and a suction pump 10 installed below the gas tank 1, as shown in fig. 2; a first air bag 9 containing pure sulfur hexafluoride gas is arranged above the inner part of the air tank 1, and the first air bag 9 is in close contact with a second air bag 11; the air pump 10 is communicated with the second air bag 11, and the air pump pumps the air in the sealing sleeve 5 into the second air bag 11 through the air pumping pipe 8 for storage.
The air pump 10 provides a negative pressure state for the sealing sleeve 5 through the air exhaust pipe 8, so that the sealing sleeve 5 can continuously absorb the leaked sulfur hexafluoride waste gas (sulfur hexafluoride gas mixed with air) through the air suction hole of the outer cover 7 and store the sulfur hexafluoride waste gas in the second air bag 11. The second air bag 11 is in close contact with the first air bag 9, and when the second air bag 11 sucks leaked sulfur hexafluoride waste gas, the second air bag 11 expands and presses the first air bag 9, so that the first air bag 9 can keep stable gas output pressure after supplementing gas for the insulating equipment. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.
Example 3:
in this embodiment, a control valve 2 is further added on the basis of the above embodiment, as shown in fig. 1, the control valve 2 is installed at an opening of the upper portion of the first air bag 9 extending out of the air tank 1, the control valve 2 is a three-way valve with a knob handle at the upper portion, a lower valve port is connected with an opening of the first air bag 9, a left valve port is connected with a barometer 3 for displaying the air pressure in the first air bag 9, and a right valve port is connected with the air supplement pipe 6. The control valve 2 mainly controls the pure sulfur hexafluoride gas in the first air bag 9 to supplement the gas to the insulation equipment through the gas supplementing pipe 6. The control valve is preferably set as a three-way valve, the upper part of the three-way valve is provided with a screwing handle for controlling the gas output pressure, the left valve port is provided with a barometer 3 for displaying the gas output pressure, the right valve port directly outputs gas, and the lower valve port is communicated with the first air bag 9. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.
Example 4:
the present embodiment further defines the connection manner of the outer cover 7 and the sealing sleeve 5 on the basis of the above embodiments, and the outer cover 7 and the sealing sleeve 5 are connected by screw threads to seal the inside of the sealing sleeve 5. The outer cover 7 is in threaded connection with the sealing sleeve 5, so that the outer cover can be conveniently detached, the sealing sleeve 5 can be closed, and other movable connection modes for detaching the outer cover 7 can be conveniently selected. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.
Example 5:
in this embodiment, a base is further added on the basis of the above embodiments, as shown in fig. 1 and fig. 2, a base is further disposed below the gas tank 1, the air pump 10 is disposed inside the base, and a control switch of the air pump 10 is disposed on the surface of the base. The base is additionally arranged, so that the air extracting pump 10 and the air tank 1 form a complete fixed whole, and the use and the carrying are more convenient. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.
Example 6:
in this embodiment, on the basis of the above embodiment, an on-off control device for the air exhaust pipe 8 is further added, and the air exhaust pipe 8 is further provided with an on-off valve. When the suction pump 10 is in the starting state, the suction pipe 8 can be cut off by the on-off valve when the negative pressure state is kept in the non-sealing sleeve 5. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.
It is to be understood that the operation principle and operation of the air compensating device structure according to an embodiment of the present invention, such as the components of the barometer 3 and the pressure reducing valve 4, are well known in the art and will not be described in detail herein.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (5)

1. The quick air supplement device for the sulfur hexafluoride gas insulation equipment is characterized by comprising a gas tank (1) and a waste gas collecting device which is arranged at the lower part of the gas tank (1) and can actively suck, wherein an air supplement pipe (6) for supplementing air for the sulfur hexafluoride gas insulation equipment is arranged on the gas tank (1), a pressure reducing valve (4) is installed on the air supplement pipe (6), a sealing sleeve (5) is sleeved outside the air supplement pipe (6), an outer cover (7) is arranged at the free end of the sealing sleeve (5), one end face of the outer cover (7) seals the sealing sleeve (5), the middle part of the other end face is inwards concave to form a groove body matched with the shape of an air inlet of the equipment needing air supplement, through holes for the air supplement pipe (6) to pass through are formed in the middle part of the groove body, and air suction holes which are arranged in an annular array are formed around the through holes; one end of the sealing sleeve (5) is communicated with an air exhaust pipe (8), and the air exhaust pipe (8) is communicated with an exhaust gas collecting device capable of actively sucking; the waste gas collecting device mainly comprises a second air bag (11) arranged below the inner part of the air tank (1) and an air pump (10) arranged below the air tank (1); a first air bag (9) containing pure sulfur hexafluoride gas is arranged above the inner part of the air tank (1), and the first air bag (9) is tightly contacted with a second air bag (11); the air pump (10) is communicated with the second air bag (11), and the air pump pumps the air in the sealing sleeve (5) into the second air bag (11) through the air pumping pipe (8) for storage.
2. The quick air supplement device for sulfur hexafluoride gas insulation equipment according to claim 1, wherein the opening of the upper portion of the first air bag (9) extending out of the gas tank (1) is provided with a control valve (2), the control valve (2) is a three-way valve with a knob handle arranged on the upper portion, the lower valve port is connected with the opening of the first air bag (9), the left valve port is connected with a barometer (3) for displaying the pressure in the first air bag (9), and the right valve port is connected with an air supplement pipe (6).
3. A sulfur hexafluoride gas insulation equipment rapid gas supplementing device according to claim 2, wherein the outer cover (7) and the sealing sleeve (5) are in threaded connection to seal the interior of the sealing sleeve (5).
4. The quick air supplement unit for sulfur hexafluoride gas insulation equipment according to claim 1, characterized in that a base is further arranged below the gas tank (1), the air pump (10) is arranged inside the base, and a control switch of the air pump (10) is arranged on the surface of the base.
5. The quick air supplement unit for sulfur hexafluoride gas insulation equipment according to claim 1, wherein the exhaust pipe (8) is further provided with an on-off valve.
CN201910702814.2A 2019-07-31 2019-07-31 Quick air supplement unit of sulfur hexafluoride gas insulation equipment Active CN110410661B (en)

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JPH0532298A (en) * 1991-07-18 1993-02-09 Tokico Ltd Oil feeder
JPH0597199A (en) * 1991-10-02 1993-04-20 Tatsuno Co Ltd Blower for vapour recovery of oil feeder
CN203500828U (en) * 2013-10-14 2014-03-26 广东电网公司东莞供电局 Inflation tool of sulfur hexafluoride gas insulation equipment
CN104565810A (en) * 2015-01-30 2015-04-29 国网宁夏电力公司中卫供电公司 General type SF6-gas filling device
CN105889750A (en) * 2016-06-27 2016-08-24 广东电网有限责任公司东莞供电局 Zero release aeration tool for sulfur hexafluoride gas
CN206126831U (en) * 2016-11-04 2017-04-26 西南石油大学 Oil gas recovery device
CN206247016U (en) * 2016-12-07 2017-06-13 常州埃依琦科技有限公司 A kind of SF6 omnipotent chargers of universal contact junction anti-leak
CN207438130U (en) * 2017-11-09 2018-06-01 国网陕西省电力公司检修公司 For the Portable Automatic air compensating system of sulfur hexafluoride equipment
CN207865026U (en) * 2017-12-25 2018-09-14 河南省日立信股份有限公司 The on-line automatic making-up air device of sulfur hexafluoride electrical equipment

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0532298A (en) * 1991-07-18 1993-02-09 Tokico Ltd Oil feeder
JPH0597199A (en) * 1991-10-02 1993-04-20 Tatsuno Co Ltd Blower for vapour recovery of oil feeder
CN203500828U (en) * 2013-10-14 2014-03-26 广东电网公司东莞供电局 Inflation tool of sulfur hexafluoride gas insulation equipment
CN104565810A (en) * 2015-01-30 2015-04-29 国网宁夏电力公司中卫供电公司 General type SF6-gas filling device
CN105889750A (en) * 2016-06-27 2016-08-24 广东电网有限责任公司东莞供电局 Zero release aeration tool for sulfur hexafluoride gas
CN206126831U (en) * 2016-11-04 2017-04-26 西南石油大学 Oil gas recovery device
CN206247016U (en) * 2016-12-07 2017-06-13 常州埃依琦科技有限公司 A kind of SF6 omnipotent chargers of universal contact junction anti-leak
CN207438130U (en) * 2017-11-09 2018-06-01 国网陕西省电力公司检修公司 For the Portable Automatic air compensating system of sulfur hexafluoride equipment
CN207865026U (en) * 2017-12-25 2018-09-14 河南省日立信股份有限公司 The on-line automatic making-up air device of sulfur hexafluoride electrical equipment

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