CN114251597B - Adjustable multichannel inflation equipment and method for large-scale gas insulation equipment - Google Patents

Adjustable multichannel inflation equipment and method for large-scale gas insulation equipment Download PDF

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Publication number
CN114251597B
CN114251597B CN202210056866.9A CN202210056866A CN114251597B CN 114251597 B CN114251597 B CN 114251597B CN 202210056866 A CN202210056866 A CN 202210056866A CN 114251597 B CN114251597 B CN 114251597B
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China
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gas
sliding
sealing plate
air
channel
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CN202210056866.9A
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CN114251597A (en
Inventor
何满棠
周斌
袁镜江
吴树平
叶子豪
朱遂松
赵京京
雷慷
何智荣
李林蔚
曾宪文
王文献
邓瑞鹏
李志钿
张建伟
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Dongguan Power Supply Bureau of Guangdong Power Grid Co Ltd
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Dongguan Power Supply Bureau of Guangdong Power Grid Co Ltd
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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
    • F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
    • 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
    • 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
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
    • 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
    • F17C13/04—Arrangement or mounting of valves
    • 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
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/043—Pressure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Gases (AREA)

Abstract

The invention discloses an adjustable multichannel inflating device and method of a large-scale gas insulation device, comprising a plurality of gas injection channels arranged on an inflating device body and provided with stop valves, a plurality of multistage connecting structures arranged on the corresponding gas injection channels, and an inflating port arranged on the inflating device body and communicated with the plurality of gas injection channels.

Description

Adjustable multichannel inflation equipment and method for large-scale gas insulation equipment
Technical Field
The invention relates to the technical field of insulating equipment, in particular to adjustable multi-channel inflating equipment and method for large-scale gas insulating equipment.
Background
In the use process of the large-sized gas insulation equipment, a large amount of sulfur hexafluoride protective gas is required to be filled, so that the safe and stable operation of the high-voltage electrical equipment is ensured, electric arcs and other phenomena in the high-voltage equipment are eliminated, and the insulation performance of the whole equipment is ensured.
For large-scale gas insulation equipment needing to be filled with sulfur hexafluoride protective gas at one time, the gas in the gas cylinder with a large quantity is consumed, and the gas is filled into the insulation equipment from the inside of the gas cylinder in a one-to-one mode in the prior art, but the mode has corresponding problems, firstly, the operation efficiency is low, secondly, the gas cylinder needs to be replaced for many times, so that the moisture invasion affects the operation safety of the equipment, the gas leakage is easy to cause, and the environment is easily damaged, meanwhile, the gas cylinder is frozen due to overlarge air flow caused by the fact that the gas flow is difficult to control during gas filling, so that the adjustable multi-channel gas filling equipment and the method of the large-scale gas insulation equipment are required to be designed.
Disclosure of Invention
The invention aims to provide an adjustable multichannel inflation device and method for large-scale gas insulation equipment, which solve the problems that the existing large-scale gas insulation equipment is low in inflation efficiency and is easy to cause moisture invasion and gas leakage and gas bottle freezing.
In order to solve the technical problems, the invention specifically provides the following technical scheme:
the adjustable multi-channel inflating equipment of the large-scale gas insulation equipment comprises a plurality of air injection channels which are arranged on an inflating equipment body and are provided with stop valves, a plurality of multi-stage connecting structures which are arranged on the corresponding air injection channels, and inflating ports which are arranged on the inflating equipment body and are communicated with the plurality of air injection channels, wherein the air injection ports are provided with the stop valves and an air pressure monitoring meter, and the air injection channels are used for isolating water vapor and limiting the overflow of input gas through the multi-stage connecting structures in a multi-stage replacement mode;
the multistage connection structure comprises a connection pipeline which is communicated with the gas injection channel and used for connecting a gas cylinder, a first-stage dehumidification structure which is arranged in the connection pipeline and used for removing water and gas, and a second-stage flow limiting structure which is connected with the first-stage dehumidification structure and used for limiting gas leakage and limiting the maximum flow of gas.
As a preferable scheme of the invention, the primary dehumidification structure comprises a linear chute arranged on the inner wall of the connecting pipeline, an inner driving groove extending from the linear chute into the side wall of the connecting pipeline, and a linear screw rod arranged in the inner driving groove, wherein a sliding sealing plate in threaded connection with the linear screw rod is connected in a sliding manner in the linear chute and the inner driving groove, and a heating element is arranged on the sliding sealing plate;
when the gas cylinder is connected to the connecting pipeline, the linear screw rod drives the sliding sealing plate to seal the connecting pipeline, and the heating piece removes water vapor in the connecting pipeline.
As a preferable scheme of the invention, the heating element comprises a wind-driving groove arranged on one side of the sliding sealing plate, which is far away from the air injection channel, and a heating net arranged at the notch of the wind-driving groove, wherein a guiding fan for guiding the heat of the heating net is arranged in the wind-driving groove, and the guiding fan guides the heat to remove the water vapor from the connecting pipeline to the outside, and limits the external water vapor from entering the connecting pipeline.
As a preferable scheme of the invention, the inner side wall of the connecting pipeline is internally provided with an arc-shaped ring seat in an extending way, wherein the arc-shaped ring seat is used for limiting the size of a hot air guide path, and one end of the arc-shaped ring seat, which is away from the sliding sealing plate, extends to the end part of the connecting pipeline, which is connected with the gas cylinder.
As a preferable scheme of the invention, a plurality of convection holes communicated with one side of the sliding sealing plate, which is far away from the side of the air injection channel, are formed in the inner side wall of the air driving groove, a plurality of return air holes which are communicated in a sealing manner are formed in the arc-shaped ring seat corresponding to the convection holes, the guide fan guides hot air through normal air flow of the convection holes and the return air holes, and the hot air at the guide position is subjected to reflux treatment for secondary dehumidification.
As a preferable mode of the invention, a side sealing groove is arranged at one side of the inner driving groove, which is contacted with the sliding sealing plate, an auxiliary sealing plate is arranged at the end part of the sliding sealing plate along the vertical direction, and the auxiliary sealing plate is propped against the side wall of the side sealing groove when the sliding sealing plate seals and cuts off the connecting pipeline.
As a preferable scheme of the invention, the secondary flow limiting structure comprises two adjusting grooves and a flow limiting plate, wherein the two adjusting grooves are arranged on two opposite side walls in the connecting pipeline, the flow limiting plate is connected with the corresponding adjusting groove in a sliding way through a reset spring, and a plurality of shunt ports connected with the collecting container are arranged on the inner wall of the adjusting groove;
the flow limiting plate is in a sealing state with the propping part of the inner wall of the regulating groove, and when the gas pressure in the connecting pipeline is increased, the flow limiting plate opens the shunt opening to shunt and limit the increase of the gas pressure, and when the gas pressure is recovered to be normal, the flow limiting plate is reset.
As a preferable mode of the invention, the shunt ports are provided with a plurality of groups, and each group of shunt ports is arranged along the movement direction of the flow limiting plate.
As a preferable scheme of the invention, a plurality of sliding columns and a sliding sleeve which is sleeved on the sliding columns and connected with one side of the current limiting plate are arranged on one side, away from the current limiting plate, of the adjusting groove, and the reset spring is sleeved on the sliding columns and connected with the end part of the sliding sleeve.
In order to solve the technical problems, the invention further provides the following technical scheme:
an inflation method of an adjustable multi-channel inflation device of a large-scale gas insulation device comprises the steps of,
s100, starting a heating net to generate heat, driving the heat to radiate by a guiding fan to remove water vapor in a space formed by one side of a gas cylinder connecting part of a connecting pipeline and a sliding sealing plate, stopping heat generation after a certain time, and keeping the interior dry by utilizing waste heat;
s200, connecting the gas cylinders with a plurality of connecting pipelines before the internal waste heat of the connecting pipelines is dissipated, driving a sliding sealing plate to open the connecting pipelines after the internal waste heat is dissipated, controlling the number of the gas cylinders to be inflated through a stop valve according to requirements, and monitoring the internal pressure through a pressure monitoring meter;
s300, when the pressure of the gas in the connecting pipeline is increased due to the fact that a large amount of gas is filled into the gas cylinder due to pressure change, the regulating plate compresses the reset spring to open the split-flow port to control the gas pressure and the gas flow;
s400, when the gas inside the gas cylinder is consumed, the sliding sealing plate is driven to seal the connecting pipeline, and then the gas cylinder is replaced.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the plurality of gas injection channels are arranged for inflation, so that the inflation efficiency is improved, the harm of moisture invasion to the safe operation of equipment caused by gas cylinder replacement is reduced, the inflation pressure is monitored through the stop valve and the gas pressure monitoring meter, the opening of the gas injection channels can be controlled according to the requirement, the safe operation and the inflation efficiency of the whole inflation process are ensured, and secondly, the moisture in the connecting pipeline can be further removed through the primary dehumidification structure, the moisture is prevented from invading when the gas cylinder is replaced, the gas flow is limited through the secondary flow limiting structure, and the gas cylinder is prevented from being frozen due to the overhigh gas pressure in the inflation process.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.
Fig. 1 is a schematic structural diagram of an adjustable multi-channel inflator for a large-scale gas-insulated apparatus according to an embodiment of the present invention;
fig. 2 is an enlarged schematic view of the structure of the portion a shown in fig. 1 according to an embodiment of the present invention.
Reference numerals in the drawings are respectively as follows:
1-an air injection channel; 2-multilevel connection structure;
201-connecting a pipeline; 202-a primary dehumidification structure; 203-a secondary flow restricting structure; 204-a linear chute; 205-an inner drive slot; 206-a linear screw; 207-sliding seal plate; 208-heating element; 209-a wind-driving groove; 210-heating net; 211-guiding a fan; 212-an arc-shaped ring seat; 213-convection holes; 214-a return air hole; 215-side seal groove; 216-auxiliary sealing plate; 217-an adjustment tank; 218-a return spring; 219—a restrictor plate; 220-shunt port; 221-a sliding column; 222-sliding sleeve.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1:
as shown in fig. 1 and 2, the present invention provides an adjustable multi-channel gas filling device of a large-sized gas insulation device, comprising a plurality of gas filling channels 1 arranged on a gas filling device body and provided with stop valves, a plurality of multi-stage connection structures 2 arranged on the corresponding gas filling channels 1, and gas filling ports arranged on the gas filling device body and communicated with the plurality of gas filling channels 1, wherein the gas filling ports are provided with stop valves and gas pressure monitoring meters, and the gas filling channels 1 are used for isolating water vapor and limiting the overflow of input gas through the multi-stage connection structures 2 in a multi-stage replacement manner;
the multistage connection structure 2 includes a connection pipe 201 communicating with the gas injection passage 1 for connecting a gas cylinder, a primary dehumidifying structure 202 provided in the connection pipe 201 for removing moisture, and a secondary flow restricting structure 203 connected to the primary dehumidifying structure 202 for restricting leakage of the charged gas and restricting the maximum flow rate of the gas.
When the invention is used, the gas cylinder is connected to the connecting pipeline 201 of the multi-stage connecting structure 2, and is inflated through the gas injection channel 1 and the inflation inlet 3, so that the inflation of large-scale insulating equipment is completed.
And secondly, the plurality of gas injection channels 1 can be used for simultaneously inflating a plurality of gas cylinders, so that the inflation efficiency is improved, the quantity of the gas injection channels 1 communicated can be randomly adjusted through the stop valve, the gas injection channels can be started according to actual needs, the gas injection channels are suitable for gas chambers with different capacities, the pressure of the temporal part is monitored through the pressure monitoring meter, and the gas cylinders are prevented from being frozen due to pressure change.
And moreover, the water vapor which invades in the gas cylinder replacement process is removed through the primary dehumidifying structure 202, so that the influence of water vapor invasion on the safety of equipment is avoided, and the gas flow in the gas injection channel 1 is limited through the secondary flow limiting structure 203, so that the problem that the gas cylinder is frozen and the inflation safety is influenced due to the overlarge gas flow is avoided.
The primary dehumidification structure 202 comprises a linear chute 204 arranged on the inner wall of the connecting pipeline 201, an inner driving groove 205 extending from the linear chute 204 into the side wall of the connecting pipeline 201, and a linear screw rod 206 arranged in the inner driving groove 205, wherein a sliding sealing plate 207 in threaded connection with the linear screw rod 206 is connected in a sliding manner in the linear chute 204 and the inner driving groove 205, and a heating element 208 is arranged on the sliding sealing plate 207;
wherein, when the gas cylinder is connected to the connecting pipe 201, the linear screw 206 drives the sliding sealing plate 207 to seal the connecting pipe 201, and the steam inside the connecting pipe 201 is removed by the heating element 208.
When the primary dehumidifying structure 202 is used, the gas inside the gas cylinder is exhausted and replaced, the linear screw 206 drives the sliding sealing plate 207 to seal the connecting pipeline 201, the inside of the gas injection channel 1 is separated from the outside, the heating element 208 is started to emit heat, and moisture which invades the inside of the connecting pipeline 201 is dried and removed.
And after the heating piece 208 is dried for a certain time, the heating piece is stopped to generate heat, the drying state inside the connecting pipeline 201 is kept through the waste heat, the gas cylinder is connected in the waste heat state, and the influence of moisture invasion on the safe operation of the equipment is avoided in the process of replacing the gas cylinder.
The sliding seal plate 207 opens the connecting pipe 201 after the gas cylinder is connected so that the gas passes through and enters the gas injection passage 1 to be inflated.
The portions of the sliding seal plate 207 located in the linear chute 204 and the inner drive groove 205 are in a sealed state, preventing intrusion of moisture and leakage of gas.
The heating element 208 comprises a wind-driving groove 209 arranged on one side of the sliding sealing plate 207, which is away from the gas injection channel 1, and a heating net 210 arranged at the notch of the wind-driving groove 209, wherein a guiding fan 211 for guiding the heat of the heating net 210 is arranged in the wind-driving groove 209, and the guiding fan 211 guides the heat to remove the steam from the connecting pipeline 201 to the outside, and limits the external steam from entering the connecting pipeline 201.
When the heating element 208 is in use, the heating net 210 is electrified to generate heat, and the guiding fan 210 blows the heat to the end part of the connecting pipeline 201 connected with the gas cylinder, so that the complete removal of the internal moisture is ensured.
Through the wind-driving groove 209, the generated wind power of the guiding fan 211 is used for vertical external air inside, so as to improve the drying effect.
The heating net 210 may be a net-shaped article made of resistance wires, and may generate heat and wind power may pass through.
The inner side wall of the connecting pipe 201 is provided with an arc-shaped ring seat 212 which is used for limiting the size of the hot air guiding path in an inward extending mode, and one end, away from the sliding sealing plate 207, of the arc-shaped ring seat 212 extends to the end, connected with the gas cylinder, of the connecting pipe 201.
The arc-shaped ring seat 212 reduces the size of the flow path of the wind power generated by the guiding fan 211 during flowing, so that the wind power is compressed fast, and the cleaning effect on internal water vapor is further improved.
The inner side wall of the air-driving groove 209 is provided with a plurality of convection holes 213 communicated with one side of the sliding sealing plate 207, which is away from the side of the air injection channel 1, the arc-shaped ring seat 212 is provided with a plurality of return air holes 214 which are communicated in a sealing way, and the guiding fan 211 is used for guiding hot air through normal air flow by the convection holes 213 and the return air holes 214, and carrying out reflux treatment on the hot air at the guiding position for secondary dehumidification.
Through convection hole 213 and return air hole 214 that set up for guide fan 211 wind-force forms one when using and accomplishes the backward flow, guarantees guide fan 211's normal use, avoids guide fan 211 back air not to circulate and produces negative pressure influence drying effect.
And the blown out part of air is guided by the wind force of the air return hole 214 and the guiding fan 211 to reenter the air driving groove 209 for secondary heating and drying through the air return hole 214 and the convection hole 213, so as to further improve the water vapor cleaning effect.
The side of the inner driving groove 205, which is in contact with the sliding seal plate 207, is provided with a side seal groove 215, the end of the sliding seal plate 207 is provided with an auxiliary seal plate 216 in the vertical direction, and the auxiliary seal plate 216 is sealed against the side wall of the side seal groove 215 when the sliding seal plate 207 seals off the connection pipe 201.
Because the sliding seal plate 207 is close to the side of the inner driving groove 205 and has a portion connected with the linear sliding groove 204, the sealing effect is possibly poor, so that gas leakage and moisture infiltration are possibly caused, and the sealing state is formed by the propping of the auxiliary seal plate 216 and the side seal groove 215, so that an auxiliary sealing effect is realized on the side of the sliding seal plate 207, and the good sealing effect of the connecting pipeline 201 of the sliding seal plate 207 in the use process is ensured.
The secondary flow limiting structure 203 comprises two adjusting grooves 217 arranged on two opposite side walls in the connecting pipeline 201 and a flow limiting plate 219 which is connected with the corresponding adjusting groove 217 in a sliding way through a return spring 218, wherein the inner wall of the adjusting groove 217 is provided with a plurality of shunt ports 220 connected with a collecting container;
wherein, the part of the flow limiting plate 219 abutting against the inner wall of the regulating groove 217 is in a sealing state, and when the gas pressure in the connecting pipeline 201 increases, the flow limiting plate 219 opens the shunt opening 220 to shunt and limit the increase of the gas pressure, and when the gas pressure returns to normal, the flow limiting plate 219 resets.
In use, when the gas passes through the connecting pipe 201, if the gas flow increases for a short time, so that the internal gas pressure increases, the gas pressure drives the flow limiting plate 219 to compress the return spring 218, and the flow limiting plate 219 slides along the adjusting groove 217 to open the shunt opening, so that the amplified gas flow is shunted through the shunt opening 220.
When the gas flow in the split-flow pipeline 201 is normal, the flow limiting plate 219 resets under the elastic force of the reset spring 218 to reclose the split-flow port 220, so that the normal filling of the gas in the connecting pipeline 201 is ensured.
By setting the initial compression of the return spring 218 to set the maximum pressure at which the gas is charged, the defined pressure level can be freely adjusted.
The restrictor 219 is in a sealed state against the circumference of the regulator slot 217, preventing leakage to the shunt ports 220 when the gas pressure in the connecting conduit 201 is normal.
The gas flowing through the shunt ports 220 is collected in a separate container, so that the gas leakage is prevented from damaging the environment, and the gas is reused.
The shunt ports 220 are provided in plural groups, and each group of shunt ports 220 is provided along the movement direction of the flow restricting plate 219.
The number of the split ports 220 is controlled by the movement distance of the gas-driven flow limiting plate 219 in the adjusting groove 217 along the split ports 220 arranged in the movement direction of the flow limiting plate 219 so as to control the speed of splitting the gas, and the gas flows can be split rapidly to avoid affecting the normal filling of the gas.
A plurality of sliding columns 221 and a sliding sleeve 222 which is sleeved on the sliding columns 221 and connected with one side of the flow limiting plate 219 are arranged on one side of the adjusting groove 217 away from the flow limiting plate 219, and a return spring 218 is sleeved on the sliding columns 221 and connected with the end part of the sliding sleeve 222.
The sliding sleeve 222 is sleeved on the sliding column 221, so that no other structure is connected between the flow limiting plate 219 and the inner wall of the adjusting groove 217, good tightness between the flow limiting plate 219 and the circumference of the adjusting groove 217 is ensured, and when the gas pressure drives the flow limiting plate 219, the flow limiting plate 219 drives the sliding sleeve 22 to move along the sliding column 221 and compress the reset spring.
The provision of the plurality of sliding columns 221 and the sliding sleeve 222 makes the movement of the restrictor plate 219 more stable.
Example 2:
the invention also provides an inflation method of the adjustable multi-channel inflation equipment of the large-scale gas insulation equipment, which comprises the steps of,
s100, starting a heating net to generate heat, driving the heat to radiate by a guiding fan to remove water vapor in a space formed by one side of a gas cylinder connecting part of a connecting pipeline and a sliding sealing plate, stopping heat generation after a certain time, and keeping the interior dry by utilizing waste heat;
s200, connecting the gas cylinders with a plurality of connecting pipelines before the internal waste heat of the connecting pipelines is dissipated, driving a sliding sealing plate to open the connecting pipelines after the internal waste heat is dissipated, controlling the number of the gas cylinders to be inflated through a stop valve according to requirements, and monitoring the internal pressure through a pressure monitoring meter;
s300, when the pressure of the gas in the connecting pipeline is increased due to the fact that a large amount of gas is filled into the gas cylinder due to pressure change, the regulating plate compresses the reset spring to open the split-flow port to control the gas pressure and the gas flow;
s400, when the gas inside the gas cylinder is consumed, the sliding sealing plate is driven to seal the connecting pipeline, and then the gas cylinder is replaced.
The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application, the scope of which is defined by the claims. Various modifications and equivalent arrangements may be made to the present application by those skilled in the art, which modifications and equivalents are also considered to be within the scope of the present application.

Claims (9)

1. An adjustable multichannel inflation device of a large-scale gas insulation device, which is characterized in that: the air injection device comprises a plurality of air injection channels (1) which are arranged on an air injection device body and are provided with stop valves, a plurality of multi-stage connecting structures (2) which are arranged on the air injection channels (1) correspondingly, and an air charging port which is arranged on the air injection device body and is communicated with the air injection channels (1), wherein the air charging port is provided with the stop valves and an air pressure monitoring meter, and the air injection channels (1) isolate water and gas through multi-stage replacement of the multi-stage connecting structures (2) and limit overflow of input gas;
the multistage connection structure (2) comprises a connection pipeline (201) communicated with the gas injection channel (1) and used for connecting a gas cylinder, a primary dehumidification structure (202) arranged in the connection pipeline (201) and used for removing water vapor, and a secondary flow limiting structure (203) connected with the primary dehumidification structure (202) and used for limiting gas leakage and limiting the maximum flow of gas;
the primary dehumidification structure (202) comprises a linear chute (204) arranged on the inner wall of the connecting pipeline (201), an inner driving groove (205) extending from the linear chute (204) to the inner side wall of the connecting pipeline (201), and a linear screw rod (206) arranged in the inner driving groove (205), wherein a sliding sealing plate (207) in threaded connection with the linear screw rod (206) is connected in the linear chute (204) and the inner driving groove (205) in a sliding manner, and a heating element (208) is arranged on the sliding sealing plate (207);
wherein the sliding sealing plate (207) is driven by the linear screw (206) to seal the connecting pipe (201) when the gas cylinder is connected to the connecting pipe (201), and moisture inside the connecting pipe (201) is removed by the heat generating member (208).
2. An adjustable multi-channel inflator for a large gas insulated apparatus of claim 1, wherein: the heating piece (208) comprises a wind-driving groove (209) arranged on one side, deviating from the air injection channel (1), of the sliding sealing plate (207) and a heating net (210) arranged at the notch of the wind-driving groove (209), a guiding fan (211) used for guiding the heat of the heating net (210) is arranged in the wind-driving groove (209), and the heat is guided by the guiding fan (211) to remove the steam from the connecting pipeline (201) to the outside, so that the external steam is limited to enter the connecting pipeline (201).
3. An adjustable multi-channel inflator for a large gas-insulated apparatus of claim 2, wherein: the inside wall of connecting tube (201) inwards extends to be provided with arc ring seat (212) that are used for restricting hot air guide route size, just on arc ring seat (212) deviating from the one end of sliding seal board (207) extends to connecting tube (201) connects the tip of gas cylinder.
4. An adjustable multi-channel inflation apparatus for a large gas-insulated apparatus as claimed in claim 3, wherein: the air-driving groove (209) is provided with a plurality of convection holes (213) which are communicated with one side of the sliding sealing plate (207) away from the side of the air injection channel (1), the arc-shaped ring seat (212) is provided with a plurality of air return holes (214) which are communicated in a sealing way corresponding to the convection holes (213), and the guiding fan (211) is used for guiding hot air through normal air flowing of the convection holes (213) and the air return holes (214) and carrying out reflux treatment on the hot air at the guiding position for secondary dehumidification.
5. An adjustable multi-channel inflation apparatus for a large gas-insulated apparatus as claimed in claim 3, wherein: the inner driving groove (205) is provided with a side sealing groove (215) at one side contacted with the sliding sealing plate (207), an auxiliary sealing plate (216) is arranged at the end part of the sliding sealing plate (207) along the vertical direction, and the auxiliary sealing plate (216) is in butt seal with the side wall of the side sealing groove (215) when the sliding sealing plate (207) seals and cuts off the connecting pipeline (201).
6. An adjustable multi-channel inflator for a large gas insulator apparatus of claim 5, wherein: the secondary flow limiting structure (203) comprises two adjusting grooves (217) arranged on two opposite side walls in the connecting pipeline (201) and a flow limiting plate (219) which is connected with the corresponding adjusting groove (217) in a sliding way through a return spring (218), and a plurality of flow dividing ports (220) connected with a collecting container are arranged on the inner wall of the adjusting groove (217);
the flow limiting plate (219) is in a sealing state against the inner wall of the regulating groove (217), when the gas pressure in the connecting pipeline (201) is increased, the flow limiting plate (219) opens the shunt opening (220) to shunt and limit the increase of the gas pressure, and when the gas pressure is recovered to be normal, the flow limiting plate (219) is reset.
7. An adjustable multi-channel inflator for a large gas insulator apparatus of claim 6, wherein: the shunt ports (220) are provided with a plurality of groups, and each group of shunt ports (220) is arranged along the movement direction of the flow limiting plate (219).
8. An adjustable multi-channel inflator for a large gas insulator apparatus of claim 7, wherein: a plurality of sliding columns (221) and sliding sleeves (222) which are sleeved on the sliding columns (221) and connected with one side of the current limiting plate (219) are arranged on one side, away from the current limiting plate (219), of the adjusting groove (217), and return springs (218) are sleeved on the sliding columns (221) and connected with the end portions of the sliding sleeves (222).
9. An inflation method for an adjustable multi-channel inflation device applied to a large-sized gas-insulated apparatus as claimed in any one of claims 1 to 8, characterized in that: comprising the steps of (a) a step of,
s100, starting a heating net to generate heat, driving the heat to radiate by a guiding fan to remove water vapor in a space formed by one side of a gas cylinder connecting part of a connecting pipeline and a sliding sealing plate, stopping heat generation after a specified time length, and keeping the interior dry by utilizing waste heat;
s200, connecting the gas cylinders with a plurality of connecting pipelines before the internal waste heat of the connecting pipelines is dissipated, driving a sliding sealing plate to open the connecting pipelines after the internal waste heat is dissipated, controlling the number of the gas cylinders to be inflated through a stop valve according to requirements, and monitoring the internal pressure through a pressure monitoring meter;
s300, when the pressure of the gas in the connecting pipeline is increased due to the fact that a large amount of gas is filled into the gas cylinder due to pressure change, the regulating plate compresses the reset spring to open the split-flow port to control the gas pressure and the gas flow;
s400, when the gas inside the gas cylinder is consumed, the sliding sealing plate is driven to seal the connecting pipeline, and then the gas cylinder is replaced.
CN202210056866.9A 2022-01-18 2022-01-18 Adjustable multichannel inflation equipment and method for large-scale gas insulation equipment Active CN114251597B (en)

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DE102006047313B4 (en) * 2006-10-06 2009-08-20 Deutsches Zentrum für Luft- und Raumfahrt e.V. Device for the rapid filling of compressed gas containers
US9618158B2 (en) * 2011-05-02 2017-04-11 New Gas Industries, L.L.C. Method and apparatus for compressing gas in a plurality of stages to a storage tank array having a plurality of storage tanks
CN103994323B (en) * 2014-05-05 2016-02-17 北京伯肯节能科技股份有限公司 A kind of integrated form CNG Qiao Zhuan gas station of layout optimization
CN208431572U (en) * 2018-06-21 2019-01-25 南方电网科学研究院有限责任公司 A kind of insulating gas inflation system for power equipment
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