CN111895264A - SF6 automatic air supply device - Google Patents
SF6 automatic air supply device Download PDFInfo
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- CN111895264A CN111895264A CN202010570646.9A CN202010570646A CN111895264A CN 111895264 A CN111895264 A CN 111895264A CN 202010570646 A CN202010570646 A CN 202010570646A CN 111895264 A CN111895264 A CN 111895264A
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- gas
- gas cylinder
- air
- path
- positioning
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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
- 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
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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
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
- F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
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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
- F17C13/04—Arrangement or mounting of valves
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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
- F17C13/08—Mounting arrangements for vessels
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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
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/01—Mounting arrangements
- F17C2205/0153—Details of mounting arrangements
- F17C2205/0157—Details of mounting arrangements for transport
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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
- 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
-
- 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
Abstract
SF6 automatic air supplement unit, including the track chassis that can the remote control walking, the one end on track chassis is connected with the gas cylinder case through articulated seat, still install the driving cylinder between gas cylinder case and the track chassis, between gas cylinder case and the articulated seat, all be connected through the detachable structure between gas cylinder case and the driving cylinder, the flexible ability of driving cylinder drives the gas cylinder case and takes place to rotate along articulated position, installs two SF gas cylinders that set up side by side in the gas cylinder incasement, the SF gas cylinder all communicates with the tonifying qi mouth of equipment through the gas circuit, and wherein the gas circuit is including main gas circuit, and the one end UNICOM of main gas circuit has two parallelly connected inlet channels, and the other end UNICOM of main gas circuit has two parallelly connected gas charging circuit and pressure release circuit, and the inlet channel communicates with the SF gas cylinder respectively, and the gas charging circuit communicates with the tonifying qi mouth of equipment mutually.
Description
Technical Field
The invention relates to the technical field of electric power overhaul, in particular to an SF6 automatic air supply device.
Background
In the operation process of GIS equipment of the current power system, combined electrical equipment leaks due to aging of a sealing element, expansion caused by heat and contraction caused by cold of the equipment and the like, so that the pressure of SF6 gas in the equipment is reduced, low-pressure alarm occurs, and the SF6 gas needs to be supplemented at the moment. At present, a gas supplementing mode adopted by a maintainer is that an SF6 gas cylinder with higher pressure is transported to a gas leakage equipment site, high-pressure SF6 gas is decompressed by a pressure reducing valve and then is connected to SF6 equipment through a rubber hose for supplementing gas, and the gas cylinder is transported back after the gas supplementing is finished. This mode carries out frequent tonifying qi because of leaking gas not only has increaseed work load and has leaded to the cost of labor to increase, still can bring external impurity, the moisture in the air into inside the equipment, lead to equipment to damage, the transformer substation is more moreover, equipment dispersion, the manpower is not enough, and all gas leakage air chamber pressures can't accurate tracking of maintainer are difficult to in time to arrive the completion tonifying qi in the station more, cause the untimely problem of GIS equipment tonifying qi.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide an SF6 automatic air supplement device, which is transported by a crawler chassis, integrates pressure monitoring and micro-water testing in an air path, and can automatically supplement air to SF6 electrical equipment by remote control, and at the same time, greatly reduce the workload of operation and maintenance personnel.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to an SF automatic air supplement device, which comprises a crawler chassis capable of walking in a remote control manner, wherein one end of the crawler chassis is connected with a gas cylinder box through a hinge seat, a driving cylinder is also arranged between the gas cylinder box and the crawler chassis, the gas cylinder box and the hinge seat as well as the gas cylinder box and the driving cylinder are connected through a detachable structure, the driving cylinder can stretch and retract to drive the gas cylinder box to rotate along the hinge position, two SF gas cylinders arranged side by side are arranged in the gas cylinder box, the SF gas cylinders are respectively communicated with an air supplement port of equipment through a gas path, the gas path comprises a main gas path, one end of the main gas path is communicated with two parallel gas inlet paths, the other end of the main gas path is communicated with two parallel gas charging paths and a pressure relief path, the gas inlet paths are respectively communicated with the SF gas cylinders, the gas charging paths are communicated with the air supplement port of the equipment, and a dew point sensor and a system pressure sensor, install air inlet pressure sensor and air inlet solenoid valve on the inlet channel, install on the inflation channel and aerify solenoid valve, proportional control valve, flow sensor and aerify pressure sensor, install safety relief valve and gassing check valve on the pressure release channel, gas cylinder case internally mounted has the gas circuit case of vertical setting, and main gas circuit, air inlet circuit and gas circuit all are located the gas circuit incasement, installs the fixing base in the both sides position department of gas circuit case, and the upper end of every side fixing base all is equipped with the bandage, offers the draw-in groove that matches with the SF gas cylinder in the fixing base.
Further, the gas cylinder lifting device is installed at the bottom ends of the gas circuit box and the fixing seat and comprises a lifting plate horizontally arranged, guide plates are installed on the inner walls of the gas cylinder boxes on two sides of the lifting plate, inclined long grooves are formed in the guide plates, sliding blocks matched with the inclined long grooves are installed on two sides of the lifting plate, a lifting driving mechanism is installed at the bottom of the lifting plate and comprises two folded plates which are arranged side by side, the bent positions of the folded plates are hinged to the bottom of the gas cylinder box, one ends, located at the bottom of the lifting plate, of the folded plates are hinged to connecting rods, the connecting rods are hinged to the lifting plate, a pedal is fixedly installed at the other end of each folded plate, the pedal can drive the lifting plate to move along the guide plates through rotation of the hinged points, and dampers are further hinged to the positions of two ends, located.
Furthermore, a first positioning pin is arranged on one side of the lifting plate, the first positioning pin comprises a first sleeve and a first positioning rod inside the first sleeve, one end of the first sleeve is closed, a first through groove matched with the first positioning rod is formed in the other end of the first sleeve, a first positioning boss is arranged on the periphery of the first positioning rod in the first sleeve, the first positioning rod on one side of the first positioning boss can extend out of the first sleeve through the first through groove, a first spring is sleeved on the periphery of the first positioning rod on one side of the first positioning boss, the first spring always has the tendency of enabling the first positioning rod to extend out of the first sleeve, a first positioning hole matched with the first positioning rod is further formed in the side wall of the guide plate and the gas cylinder box corresponding to the limit position of the lifting plate, a second positioning pin is arranged on the side wall of the gas cylinder box on the other side corresponding to the position of the first positioning hole, the second positioning pin comprises a second sleeve and a second positioning rod inside the second sleeve, the two ends of the second sleeve are provided with second through grooves matched with the second positioning rods, the periphery of the second positioning rod in the second sleeve is provided with a second positioning boss, the periphery of the second positioning rod on one side of the second positioning boss is sleeved with a second spring, a wedge-shaped surface is arranged on the second positioning rod on the other side of the second positioning boss, a second positioning hole is formed in the guide plate and the lifting plate corresponding to the position of the second positioning rod, the second spring always has the tendency that the second positioning rod extends into the second positioning hole and corresponds to the position of the second positioning pin and the first positioning hole, a linkage rod is further arranged on the front side of the guide plate, one end of the linkage rod is fixedly connected with the second positioning rod, and the other end of the linkage rod extends into the first positioning hole.
Furthermore, monitoring probes are installed at the positions of two sides of the gas cylinder box.
Furthermore, the periphery of the SF gas cylinder is sleeved with a detachable heating sleeve.
Further, a pressure reducing valve is installed between the SF gas cylinder and the air inlet circuit.
Furthermore, install the check valve that admits air on the way of admitting air, the check valve that admits air is located between admission pressure sensor and the solenoid valve of admitting air, it aerify the check valve to install on the way to aerify, aerify the check valve and be located between flow sensor and the pressure sensor of aerifing.
Further, the mounting groove has been seted up to the front end position department of track chassis bottom, and articulated in the mounting groove have a dwang, and the auxiliary stay wheel is installed to the tip of dwang, still installs electric putter between dwang and track chassis, and electric putter's piston rod stretches out to drive the auxiliary stay wheel and rotates and shift out the mounting groove.
The invention has the positive effects that: according to the SF6 automatic air supplement device, the gas cylinder can be conveniently transported to an air supplement site by adopting the crawler chassis, air supplement of air leakage equipment can be realized only by remotely controlling the whole device to move to the site and completing one-time assembling, and the product integrates the SF6 gas micro-water test function, so that an SF6 gas micro-water test and pressure monitoring can be realized in the air inflation process, the air tightness is good, the air inflation unidirectionality can be ensured, the GIS equipment live-line detection function is realized, the SF6 automatic air supplement device can replace maintainers to be air chambers, the limitation of traditional live-line detection is broken through, the workload of operation and maintenance personnel is greatly reduced, meanwhile, the maintenance efficiency is improved, the safety risk is reduced, and a large amount of manpower and material resources are saved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the present invention in use;
FIG. 3 is a right side view of FIG. 2;
FIG. 4 is a schematic diagram of the structure of the gas circuit;
FIG. 5 is an enlarged partial view of I of FIG. 3;
FIG. 6 is a sectional view taken along line A-A of FIG. 5;
FIG. 7 is a sectional view taken along line B-B of FIG. 5;
FIG. 8 is a sectional view taken along line C-C of FIG. 5;
FIG. 9 is a schematic view of the first alignment pin;
FIG. 10 is a schematic structural view of a second locating pin;
fig. 11 is a schematic view of the state in which the auxiliary support wheel is extended.
In the figure, 1, a crawler chassis 2, a gas cylinder box 3, a driving cylinder 4SF6, a gas cylinder 5, a main gas circuit 6, a gas inlet circuit 7, a gas outlet circuit 8, a dew point sensor 10, a system pressure sensor 11, a gas inlet pressure sensor 12, a gas inlet electromagnetic valve 13, a proportional control valve 14, a flow sensor 16, a safety relief valve 18, a safety relief valve 19, a monitoring probe 20, a gas circuit 21, a fixing seat 22, a heating sleeve 24, a reducing valve 25, a gas inlet one-way valve 26, a mounting groove 28, a rotating rod 29, an auxiliary supporting wheel 30, an electric push rod 31, a clamping groove 32, a lifting plate 33, a 34, an inclined long groove 35, a sliding block, a folding plate, a 37, a pedal 39, a first positioning pin 40, a first positioning rod 41, a first through groove 43, a first positioning boss 44 The rod 50 is linked with the rod through the second groove 51, the second positioning boss 52, the second spring 53 wedge surface 54 and the second positioning hole 55.
Detailed Description
The invention relates to an SF6 automatic air supplement device, as shown in figure 1, which comprises a track chassis (1) capable of walking remotely, wherein one end of the track chassis (1) is connected with a gas cylinder box (2) through a hinged seat, a driving cylinder (3) is also arranged between the gas cylinder box (2) and the track chassis (1), the gas cylinder box (2) and the hinged seat and the gas cylinder box (2) and the driving cylinder (3) are connected through a detachable structure, the detachable structure can be an existing threaded connecting piece, a buckle connecting piece, a hinge connecting piece or a bolt and the like, the driving cylinder (3) can drive the gas cylinder box (2) to rotate along the hinged position, the driving cylinder (3) can be an existing oil cylinder, an existing air cylinder or an existing electric push rod, when the gas cylinder box (2) rotates to a position vertical to the ground, as shown in figure 2, air supplement operation can be carried out for GIS equipment, and air supplement operation is carried out, can separate track chassis (1) and gas cylinder case (2) through detachable structure, gas cylinder case (2) just stay the original place and carry out the tonifying qi, but track chassis (1) then remote control removes and is regarded as the transport means of a plurality of gas cylinder cases (2), and a track chassis (1) can supply with a plurality of GIS equipment and carry out the tonifying qi operation. When the gas cylinder box (2) rotates to the crawler chassis (1), the crawler chassis (1) can drive the gas cylinder box (2) on the crawler chassis to be transferred together, wherein the crawler chassis (1) is used as a transport carrier, the action of the crawler chassis can be realized through remote control, the moving, turning, climbing and walking of the whole machine can be conveniently realized, the flat ground transport and climbing obstacle crossing functions are realized, and the gas cylinder box is suitable for various complex transformer substation environments.
As shown in fig. 3, two SF6 gas cylinders (4) arranged side by side are installed in the gas cylinder box (2), the SF6 gas cylinders (4) are communicated with the gas supplementing port of the equipment through a gas path, as shown in fig. 4, the gas path comprises a main gas path (5), one end of the main gas path (5) is communicated with two parallel gas inlet paths (6), the other end of the main gas path (5) is communicated with two parallel gas charging paths (7) and pressure relief paths (8), the gas inlet paths (6) are respectively communicated with the SF6 gas cylinders (4), the gas charging paths (7) are communicated with the gas supplementing port of the equipment, and the pressure relief paths (8) are communicated with the external atmospheric environment.
Wherein, install dew point transducer (9) and system pressure sensor (10) on main gas circuit (5), install air inlet pressure sensor (11) and air inlet solenoid valve (12) on air inlet (6), install on inflating way (7) and aerify solenoid valve (13), proportional control valve (14), flow sensor (15) and inflation pressure sensor (16), install safe relief valve (17) and gassing check valve (18) on the way of leaking (8).
The air inlet pressure sensor (11) can detect the pressure of air entering the air inlet path (6) from the SF6 air bottle (4), if the pressure value of the air is unqualified, the air inlet electromagnetic valve (12) can not be opened to ensure the safety of the whole equipment, the dew point sensor (9) can detect whether the trace moisture of the air entering the main air path (5) is qualified, if the trace moisture of the air is qualified, the air enters the air charging path (7), if the trace moisture of the air is unqualified, the air is discharged from the air discharging path (8), and the SF6 air bottle (4) is alarmed and replaced, the system pressure sensor (10) is used for detecting the pressure of the whole system in the running state to ensure the normal operation of the air charging operation, the qualified air after the dew point detection can be used for adjusting the stability of the air charging amount through the proportion adjusting valve (14), the flow sensor (15) is used for measuring the accumulated flow in the air charging period to obtain, an inflation electromagnetic valve (13) and an inflation pressure sensor (16) on the inflation channel (7) are used for detecting the gas pressure entering the gas supplementing equipment, and if the gas pressure value is unqualified, the inflation electromagnetic valve (13) cannot be opened so as to ensure the safety of the whole equipment. If the system breaks down, the system pressure is higher than the pressure required for supplying air to the equipment, the safety pressure relief valve (17) is automatically opened to discharge redundant gas so as to ensure the safe operation of the whole system, the normal operation of the exhaust can be ensured by the arrangement of the air discharge one-way valve (18), and the gas mixed with water and gas outside can be prevented from entering the system.
As shown in fig. 3, gas circuit case (2) internally mounted has vertical gas circuit case (20) that sets up, main gas circuit (5), inlet air circuit (6) and gas circuit (7) all are located gas circuit case (20), install fixing base (21) in the both sides position department of gas circuit case (20), the upper end of every side fixing base (21) all is equipped with bandage (22), draw-in groove (31) that match with SF6 gas cylinder (4) are seted up in fixing base (21), so that fix SF6 gas cylinder (4) in gas cylinder case (2), prevent because of the complete machine displacement takes place offset when removing, influence subsequent tonifying qi operation.
When the SF6 automatic air supplement device is used, an SF6 gas cylinder (4) filled with air is placed in a gas cylinder box (2) in advance, a communication channel with the gas circuit box (20) is connected, then a joint pipeline between the device and GIS equipment is connected manually after the crawler chassis (1) is remotely controlled to a designated position of a transformer substation, when the equipment needs air supplement, the air in the SF6 gas cylinder (4) can be introduced into the GIS equipment through detection and control of various electric control valves, the air supplement time, the air supplement pressure and the air supplement total amount can be set and remotely controlled, good air tightness is achieved, air supplement of air leakage equipment can be achieved after one-time assembly is finished, the air supplement efficiency is improved, and meanwhile the labor cost is reduced. Wherein two SF6 gas cylinders (4) in gas cylinder case (2), only open all the way during the tonifying qi, another gas cylinder is reserve gas cylinder, when detecting to use gas cylinder pressure low time, automatic switch to another gas cylinder and warning suggestion change empty bottle, at first automated inspection second bottle gas pressure and trace moisture after the switching, carry out automatic air supplement again after qualified, if two gas cylinders all use up, just need the artifical joint line of pulling down between tonifying qi device and the GIS equipment, remote control track chassis (1) returns, carry out the change operation of gas cylinder again.
The setting of draw-in groove (31) is in order to fix a position SF6 gas cylinder (4) in gas cylinder case (2) firmly on fixing base (21), but the problem that brings simultaneously is, when needs change SF6 gas cylinder (4), draw-in groove (31) can hardly let operating personnel get out the gas cylinder in the hand to the great parcel area of SF6 gas cylinder (4). In order to solve the above problems, as shown in fig. 5, a gas cylinder lifting device is installed at the bottom ends of the gas path box (20) and the fixed seat (21) so as to assist an operator to take out an SF6 gas cylinder (4) from the fixed seat (21), the gas cylinder lifting device includes a lifting plate (32) horizontally arranged, guide plates (33) are installed on the inner walls of the gas cylinder box (2) at the two sides of the lifting plate (32), as shown in fig. 6, inclined long grooves (34) are respectively formed on the guide plates (33), sliding blocks (35) matched with the inclined long grooves (34) are installed at the two sides of the lifting plate (32), a lifting driving mechanism is installed at the bottom of the lifting plate (32), as shown in fig. 7 and 8, the lifting driving mechanism includes two folding plates (36) arranged side by side, the bending position of the folding plate (36) is hinged to the bottom of the gas cylinder box (2), a connecting rod (37) is hinged to one end of the folding plate (36, connecting rod (37) all articulate on lifter plate (32), and then fixed mounting has a footboard (38) the other end of two folded plates (36), and footboard (38) rotate along the pin joint and can drive lifter plate (32) and remove along deflector (33).
When the gas in the SF6 gas cylinder (4) is used up and needs to be replaced and taken out, the pedal (38) is stepped down by feet, the folded plate (36) rotates clockwise along the hinge point in the direction shown in fig. 7, the rotating folded plate (36) is driven by the connecting rod (37) to enable the lifting plate (32) to move along the direction of the inclined long groove (34) in the guide plate (33), and further the SF6 gas cylinder (4) on the guide plate (33) moves upwards and simultaneously moves forwards for a certain distance to be separated from the clamping groove (31) on the fixed seat (21), so that an operator can take an empty bottle conveniently. When a gas cylinder filled with gas needs to be placed into the fixed seat (21) again, due to the increase of weight, the gas cylinder can rapidly descend under the action of gravity once being placed on the lifting plate (32), in order to enable the gas cylinder to slowly enter the fixed seat (21), dampers (46) are further hinged between the positions of two ends of the bottom of the lifting plate (32) and the gas cylinder box (2), wherein the dampers (46) only play a role when a new SF6 gas cylinder (4) is filled in, and the dampers (46) cannot play a role to block the empty gas cylinder in the operation process of emptying the gas cylinder.
Furthermore, in order to position the lifting plate (32) on the guide plate (33) when the lifting plate (32) rises to separate the gas cylinder from the clamping groove (31) in the operation process of emptying the bottle without stepping on the pedal (38) all the time, a first positioning pin (39) is installed on one side of the lifting plate (32), as shown in fig. 9, the first positioning pin (39) comprises a first sleeve (40) and a first positioning rod (41) inside the first sleeve, wherein one end of the first sleeve (40) is closed, the other end of the first sleeve is provided with a first through groove (42) matched with the first positioning rod (41), a first positioning boss (43) is arranged on the periphery of the first positioning rod (41) in the first sleeve (40), the first positioning rod (41) on one side of the first positioning boss (43) can extend out of the first sleeve (40) through the first through groove (42), and a first spring (44) is sleeved on the periphery of the first positioning rod (41) on one side of the first positioning boss (43), the first spring (44) always has the tendency that the first locating rod (41) extends out of the first sleeve (40), and corresponding to the limit position of the lifting plate (32) moving upwards, a first locating hole (45) matched with the first locating rod (41) is further formed in the side wall of the guide plate (33) and the gas cylinder box (2).
Corresponding to the position of the first positioning hole (45), a second positioning pin (47) is installed on the side wall of the other side of the gas bottle box (2), as shown in fig. 10, the second positioning pin (47) comprises a second sleeve (48) and a second positioning rod (49) inside the second sleeve, wherein both ends of the second sleeve (48) are provided with second through grooves (50) matched with the second positioning rod (49), the periphery of the second positioning rod (49) positioned in the second sleeve (48) is provided with a second positioning boss (51), the periphery of the second positioning rod (49) on one side of the second positioning boss (51) is sleeved with a second spring (52), the second positioning rod (49) on the other side of the second positioning boss (51) is provided with a wedge surface (53), corresponding to the position of the second positioning rod (49), the guide plate (33) and the lifting plate (32) are provided with a second positioning hole (54), and the second spring (52) always tends to enable the second positioning rod (49) to extend into the second positioning hole (54), the wedge-shaped surface (53) on the second positioning rod (49) faces the bottom of the air bottle box (2), and the second positioning rod (49) can be pushed into the second positioning hole (54) in the guide plate (33) first in the ascending process of the lifting plate (32), and then extends into the second positioning hole (54) in the lifting plate (32).
As shown in fig. 8, corresponding to the positions of the second positioning pin (47) and the first positioning hole (45), a linkage rod (55) is further arranged at the front side of the guide plate (33), one end of the linkage rod (55) is fixedly connected with the second positioning rod (49), and the other end of the linkage rod (55) extends into the first positioning hole (45). When the lifting plate (32) is not lifted, the first locating rod (41) is located in the first sleeve (40), the second locating rod (49) is located in the second locating hole (54), once the lifting plate (32) is lifted to a specified position where the gas cylinder is separated from the clamping groove (31), the first locating rod (41) can move to the first locating hole (45), under the elastic force of the first spring (44), the first locating rod (41) can extend into the first locating hole (45), under the elastic force of the second spring (52), the second locating rod (49) can enter into the second locating hole (54) on the guide plate (33), so that the lifting plate (32) is fixed on the guide plate (33), when the locking needs to be released, only the linkage rod (55) needs to be pulled leftwards in the direction shown in figure 8, so that the linkage rod (49) is driven to overcome the elastic force of the second spring (52) to move leftwards, second locating lever (49) and second locating hole (54) phase separation in lifter plate (32) to inside the right-hand member of gangbar (55) stretched into first locating hole (45), overcome the elasticity of first spring (44) and release first locating hole (45) completely with first locating lever (41), do not have the locating pin location of both ends position, under the action of gravity, lifter plate (32) will move down, overall structure is simple, the location is reliable and convenient operation.
Further, the both sides position department of gas cylinder case (2) installs monitor (19), can monitor the SF6 density table on the equipment when tonifying qi operation to have real-time numerical value's save and transmission function, and also can compromise APP inquiry function in the remote controlled equipment, inquiry picture and inflation flow, conditions such as pressure variation possess alarming function and SMS prompt facility to abnormal conditions. The device can be internally provided with a lithium battery, has the function of independent work under the condition of no alternating current power supply, and can be externally connected with a 220V power supply for operation.
Furthermore, the periphery cover of SF6 gas cylinder (4) is equipped with dismantled and assembled heating jacket (23), when cold weather operation, can heat the steel bottle, guarantees that gaseous normal output.
Furthermore, a pressure reducing valve (24) is arranged between the SF6 gas cylinder (4) and the gas inlet circuit (6) to ensure that gas in the SF6 gas cylinder (4) enters the gas inlet circuit (6) from a normal required pressure.
Further, install air inlet check valve (25) on air inlet circuit (6), air inlet check valve (25) are located between air inlet pressure sensor (11) and air inlet solenoid valve (12), install on air charging circuit (7) and aerify check valve (26), aerify check valve (26) and be located between flow sensor (15) and air charging pressure sensor (16), wherein air inlet check valve (25) set up and guaranteed can not be because of when system pressure is higher than gas cylinder pressure, the gaseous backward flow phenomenon that takes place of SF6, aerify setting up of check valve (26) and guaranteed can not be because of when equipment pressure is higher than air charging circuit (7), the gaseous backward flow phenomenon that takes place of SF 6.
When the crawler chassis (1) climbs to move to the top of a slope, the front end of the crawler chassis (1) can descend to the horizontal state of the top of the slope from the inclined state of the forward slope, in order to ensure the stability of the whole chassis in the process, as shown in fig. 11, a mounting groove (27) is formed in the front end position of the bottom of the crawler chassis (1), a rotating rod (28) is hinged in the mounting groove (27), an auxiliary supporting wheel (29) is installed at the end part of the rotating rod (28), an electric push rod (30) is further installed between the rotating rod (28) and the crawler chassis (1), a piston rod of the electric push rod (30) extends out to drive the auxiliary supporting wheel (29) to rotate and move out of the mounting groove (27), when the crawler chassis (1) climbs to the top of the slope, the auxiliary supporting wheel (29) extends out to support the top of the slope in advance, when the crawler chassis (1) completely moves to the horizontal position of the top of the slope, the auxiliary, besides the supporting and stabilizing effect, the front end of the chassis can be buffered in the climbing process, and the service life of the whole device is prolonged.
The technical solution of the present invention is not limited to the scope of the embodiments of the present invention. The technical contents not described in detail in the present invention are all known techniques.
Claims (8)
1. An SF6 automatic air supplement unit, its characterized in that: the crawler type gas cylinder device comprises a crawler chassis (1) capable of walking in a remote control mode, one end of the crawler chassis (1) is connected with a gas cylinder box (2) through a hinged base, a driving cylinder (3) is further installed between the gas cylinder box (2) and the hinged base, the gas cylinder box (2) and the driving cylinder (3) are connected through a detachable structure, the driving cylinder (3) can stretch and drive the gas cylinder box (2) to rotate along the hinged position, two SF6 gas cylinders (4) arranged side by side are installed in the gas cylinder box (2), the SF6 gas cylinders (4) are communicated with a gas supplementing port of the device through a gas path, the gas path comprises a main gas path (5), one end of the main gas path (5) is communicated with two gas inlet paths (6) connected in parallel, the other end of the main gas path (5) is communicated with two gas charging paths (7) and a gas discharge path (8) connected in parallel, the air inlet path (6) is respectively communicated with an SF6 air bottle (4), the air charging path (7) is communicated with an air supplementing port of the equipment, wherein a dew point sensor (9) and a system pressure sensor (10) are installed on the main air path (5), an air inlet pressure sensor (11) and an air inlet electromagnetic valve (12) are installed on the air inlet path (6), an air charging electromagnetic valve (13), a proportion adjusting valve (14), a flow sensor (15) and an air charging pressure sensor (16) are installed on the air charging path (7), a safety pressure relief valve (17) and a deflation one-way valve (18) are installed on the air relief path (8), an air path box (20) which is vertically arranged is installed inside the air bottle box (2), the main air path (5), the air inlet path (6) and the air charging path (7) are all positioned in the air path box (20), fixing seats (21) are installed at two side positions of the air path box (20), and the upper end of each side of the fixing, a clamping groove (31) matched with the SF6 gas cylinder (4) is formed in the fixed seat (21).
2. The SF6 automatic air supplement device of claim 1, wherein: the gas cylinder lifting device is arranged at the bottom ends of the gas circuit box (20) and the fixed seat (21), the gas cylinder lifting device comprises a lifting plate (32) which is horizontally arranged, guide plates (33) are arranged on the inner walls of the gas cylinder box (2) at the two sides of the lifting plate (32), inclined long grooves (34) are formed in the guide plates (33), sliding blocks (35) matched with the inclined long grooves (34) are arranged at the two sides of the lifting plate (32), a lifting driving mechanism is arranged at the bottom of the lifting plate (32), the lifting driving mechanism comprises two folded plates (36) which are arranged side by side, the bending positions of the folded plates (36) are hinged with the bottom of the gas cylinder box (2), one ends, located at the bottom of the lifting plate (32), of the folded plates (36) are hinged with connecting rods (37), the connecting rods (37) are hinged on the lifting plate (32), and a pedal (38) is fixedly arranged at the, the pedal (38) can drive the lifting plate (32) to move along the guide plate (33) along the rotation of the hinge point, and dampers (46) are further hinged between the positions of two ends of the bottom of the lifting plate (32) and the gas cylinder box (2).
3. The SF6 automatic air supplement device of claim 2, wherein: first locating pin (39) is installed on one side of lifting plate (32), first locating pin (39) is including first sleeve (40) and inside first locating lever (41) thereof, wherein the one end of first sleeve (40) is sealed, the other end is seted up and is passed through groove (42) with first locating lever (41) matched with first, first locating lever (41) periphery that is located in first sleeve (40) is equipped with first location boss (43), first locating lever (41) of first location boss (43) one side can stretch out first sleeve (40) via first groove (42) that passes through, first locating lever (41) periphery cover of first location boss (43) one side is equipped with first spring (44), first spring (44) have the trend that makes first locating lever (41) stretch out first sleeve (40) all the time, the extreme position department that moves up corresponding to lifting plate (32), still set up on deflector (33) and gas cylinder case (2) lateral wall and cooperate with first locating lever (41), first locating lever (41) matched with first locating lever (41) is located A positioning hole (45), corresponding to the position of the first positioning hole (45), a second positioning pin (47) is arranged on the side wall of the other side of the air bottle box (2), the second positioning pin (47) comprises a second sleeve (48) and a second positioning rod (49) inside the second sleeve, wherein both ends of the second sleeve (48) are provided with second through grooves (50) matched with the second positioning rod (49), the periphery of the second positioning rod (49) positioned in the second sleeve (48) is provided with a second positioning boss (51), the periphery of the second positioning rod (49) on one side of the second positioning boss (51) is sleeved with a second spring (52), the second positioning rod (49) on the other side of the second positioning boss (51) is provided with a wedge surface (53) corresponding to the position of the second positioning rod (49), the guide plate (33) and the lifting plate (32) are provided with a second positioning hole (54), and the second spring (52) always tends to enable the second positioning rod (49) to extend into the second positioning hole (54), corresponding to the positions of the second positioning pin (47) and the first positioning hole (45), a linkage rod (55) is further arranged on the front side of the guide plate (33), one end of the linkage rod (55) is fixedly connected with the second positioning rod (49), and the other end of the linkage rod (55) extends into the first positioning hole (45).
4. The SF6 automatic air supplement device of claim 1, wherein: and monitoring probes (19) are arranged at the positions of two sides of the gas cylinder box (2).
5. The SF6 automatic air supplement device of claim 1, wherein: the periphery of the SF6 gas cylinder (4) is sleeved with a detachable heating sleeve (23).
6. The SF6 automatic air supplement device of claim 1, wherein: and a pressure reducing valve (24) is arranged between the SF6 gas cylinder (4) and the gas inlet circuit (6).
7. The SF6 automatic air supplement device of claim 1, wherein: install air inlet check valve (25) on air inlet circuit (6), air inlet check valve (25) are located between air inlet pressure sensor (11) and air inlet solenoid valve (12), install on inflating way (7) and aerify check valve (26), aerify check valve (26) and be located between flow sensor (15) and inflation pressure sensor (16).
8. The SF6 automatic air supplement device of claim 1, wherein: mounting groove (27) have been seted up to the front end position department of track chassis (1) bottom, and articulated in mounting groove (27) have dwang (28), and auxiliary stay wheel (29) are installed to the tip of dwang (28), still install electric putter (30) between dwang (28) and track chassis (1), and the piston rod of electric putter (30) stretches out and can drive auxiliary stay wheel (29) and rotate and shift out mounting groove (27).
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| CN112325153A (en) * | 2020-11-12 | 2021-02-05 | 广西桂林金秉航科技有限公司 | Electrified automatic air supplement unit of SF6 equipment |
| CN117489977A (en) * | 2023-12-07 | 2024-02-02 | 安徽华中半导体材料有限公司 | Rare gas filling device |
| CN117489977B (en) * | 2023-12-07 | 2024-04-26 | 安徽华中半导体材料有限公司 | Rare gas filling device |
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