CN115290995A - Detection device for electrical equipment along railway - Google Patents
Detection device for electrical equipment along railway Download PDFInfo
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- CN115290995A CN115290995A CN202210146655.4A CN202210146655A CN115290995A CN 115290995 A CN115290995 A CN 115290995A CN 202210146655 A CN202210146655 A CN 202210146655A CN 115290995 A CN115290995 A CN 115290995A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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Abstract
The invention relates to a detection device for electrical equipment along a railway, which effectively solves the problems that the monitoring effect is poor and measures and remedies cannot be actively taken when the existing device is used for monitoring the gas environment in a sulfur hexafluoride switch; the technical scheme comprises the following steps: when switchgear led to the sealing performance to descend and take place to leak gas because of rubber is ageing, inside the device can be timely, initiative take measures and then avoid external moisture to invade to the switch, but also can be when external moisture is great, the inside moisture detector of switch is located in the control removes in the switch to enlarge its detection area, in order to obtain more accurate parameter condition, make the staff in time master the environmental information in the switch.
Description
Technical Field
The invention belongs to the technical field of electrical equipment detection, and particularly relates to a detection device for electrical equipment along a railway.
Background
The traction substations are sources of power of the electrified railways and can convert electric energy sent by power plants through power transmission lines into electric energy suitable for locomotive vehicles, main high-voltage equipment of the traction substations comprises a traction transformer, a high-voltage circuit breaker, a high-voltage load switch and the like, safe operation of the equipment is an important part of high-speed railway traction power supply safe operation, potential hazards of the equipment can be found in time, sudden accidents are avoided, and the traction substations have important significance for safe and reliable operation of a power grid;
sulfur hexafluoride has good insulation and arc extinguishing performance, most of the existing high-voltage circuit breakers and high-voltage load switches are filled with sulfur hexafluoride gas to ensure the safe and stable operation of electrical equipment, and the high-voltage load switches can generate the condition that the sealing performance of the equipment is reduced due to rubber aging in the long-term use process, so that the sulfur hexafluoride gas in the switches is leaked to reduce the internal air pressure of the switches, reduce the arc extinguishing capability during the subsequent on-off operation, and influence the safe operation of the equipment;
moisture in the outside air can permeate into the switch along with the aged rubber part, so that the humidity of sulfur hexafluoride gas in the switch is increased, the arc extinguishing and insulating properties are reduced, toxic gases such as thionyl fluoride, sulfur tetrafluoride, sulfur difluoride and hydrogen fluoride can be decomposed during the arc extinguishing process of the sulfur hexafluoride, and the gases and water can corrode equipment in the switch, so that potential hazards are brought to the operation of electrical equipment;
a sulfur hexafluoride gas alarm and a humidity detector are usually arranged in a sulfur hexafluoride high-voltage load switch and used for detecting the gas environment in the switch, but when equipment just leaks gas and does not reach an alarm value, the alarm does not work, so that workers cannot find the gas leakage situation in time, and the humidity detector is usually fixedly arranged at a certain position in the switch, and the humidity situation in the switch cannot be accurately detected because the moisture invades the switch and is not uniformly diffused and concentrated in a certain area;
in view of the above, the present invention provides a detection device for electrical equipment along a railway to solve the above problems.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the detection device for the electrical equipment along the railway, when the sealing performance of the switch equipment is reduced and air leakage occurs due to rubber aging, the device can take measures timely and actively to prevent external moisture from invading into the switch, and can control a humidity detector arranged in the switch to move in the switch when the external moisture is large, so that the detection area is enlarged, more accurate parameter conditions are obtained, and a worker can master the environmental information in the switch in time.
The railway line electrical equipment detection device comprises a containing cylinder and is characterized in that an opening is formed in one side of the containing cylinder, an air bag arranged along the opening is arranged on the containing cylinder, an arc-shaped notch is formed in the upper end of the containing cylinder, a folding assembly matched with the arc-shaped notch is installed in the containing cylinder in a sliding mode, a drying agent is arranged in the folding assembly, the folding assembly is matched with a positioning device arranged in the containing cylinder, a gas sensing device is arranged in the containing cylinder, and the gas sensing device is connected with an unlocking device;
be equipped with gas device and gas device drive in the folding assembly and have the rotation to install in the closing cap board of holding a section of thick bamboo outer wall, elastic connection and closing cap board are gone up along the conflict board of holding a section of thick bamboo radial sliding installation between closing cap board and the holding a section of thick bamboo, and gas device drives and to drive the closing cap board and just make folding assembly folding along holding a section of thick bamboo radial movement in step when removing, be equipped with in the holding a section of thick bamboo with folding assembly complex water conservancy diversion chamber.
The beneficial effects of the technical scheme are as follows:
(1) When the sealing performance of the switch equipment is reduced and air leakage occurs due to rubber aging, the device can timely and actively take measures to prevent external moisture from invading into the switch, and can control a humidity detector arranged in the switch to move in the switch when the external moisture is large, so that the detection area is enlarged, more accurate parameter conditions are obtained, and a worker can timely master environmental information in the switch;
(2) In the scheme, the moisture in the switch can be absorbed under the condition that the sulfur hexafluoride switch is not opened, so that the drying treatment of the gas in the switch can be completed under the condition that the equipment is not powered off, and the operation efficiency of the equipment is improved;
(3) In the scheme, toxic gas mixed in the leaked sulfur hexafluoride gas can be absorbed, and the environment pollution caused by the toxic gas discharged into the outside air is avoided.
Drawings
FIG. 1 is a schematic view of the present invention in an installed condition during a particular use;
FIG. 2 is a schematic view of the overall structure of the present invention;
FIG. 3 is a schematic view of the fit relationship between the first arc-shaped plate and the second arc-shaped plate according to the present invention;
FIG. 4 is a schematic cross-sectional view of the internal structure of the first arc-shaped plate and the second arc-shaped plate of the present invention;
FIG. 5 is a schematic view of the relationship between the piston plate and the arc chamber of the present invention;
FIG. 6 is a schematic view of the installation relationship between the cover plate and the abutting plate;
FIG. 7 is a schematic view of the present invention when the arc-shaped notch is covered by the first arc-shaped plate and the second arc-shaped plate;
FIG. 8 is a schematic view of the rotation of the two arcuate plates relative to the first arcuate plate in accordance with the present invention;
FIG. 9 is a schematic view of the connection between the transmission tube and the detection tube according to the present invention;
FIG. 10 is a schematic sectional view of an absorbent cartridge and test tube according to the present invention;
FIG. 11 is a schematic view showing the separation of the absorbent material and absorbent canister of the present invention;
FIG. 12 is a schematic view showing the installation relationship of the movable plate and the baffle plate according to the present invention;
fig. 13 is a schematic view of a specific structure of the accommodating cartridge of the present invention.
Detailed Description
The foregoing and other technical matters, features and effects of the present invention will be described in detail with reference to the accompanying drawings 1 to 13.
Embodiment 1, this embodiment provides a railway electrical equipment detection device along line, as shown in fig. 1, including sulfur hexafluoride load switch, including upper casing, lower casing and be equipped with the sealing rubber pad (in order to ensure the sealing performance of switch) between upper casing, the lower casing, switchgear is located the airtight space that upper casing, lower casing constitute and the inside is full of the sulfur hexafluoride gas that has certain pressure (because for prior art do not do much here to its specific structure), this scheme improvement lies in: a containing cylinder 1 is installed at the contact position of the upper shell and the lower shell, as shown in fig. 13, the containing cylinder 1 is a columnar cylinder and is provided with an opening 2 at the matching position with the upper shell and the lower shell, an air bag 3 arranged around the opening 2 is installed at the edge position of the opening 2, when a worker fixes the containing cylinder 1 on a sulfur hexafluoride load switch shell (pre-buried threaded holes are formed in the shells of the upper shell and the lower shell, the containing cylinder 1 is fixed on the upper shell and the lower shell through bolts), the air bag 3 is inflated through filling air into the air bag 3 so as to expand the air bag 3 (the gap between the opening 2 and the upper shell and the gap between the expanded air bag 3 are filled), and therefore a closed environment is formed between the opening 2 of the containing cylinder 1 and the upper shell and the lower shell (the installation position of the containing cylinder 1 is at the contact position between the upper shell and the lower shell, namely, the contact between the two shells is realized and the gap position which is easy to generate is covered);
as shown in fig. 13, an arc-shaped gap 4 is provided at the upper end of the containing cylinder 1, and a folding component matched with the arc-shaped gap 4 is coaxially and rotatably installed in the wall of the containing cylinder 1 (as shown in fig. 7, a cavity for containing the folding component is provided in the wall of the containing cylinder 1, the folding component is contracted in the cavity in an initial state and the arc-shaped gap 4 is opened as shown in fig. 1), a drying agent (such as activated alumina) is provided in the folding component, and when the folding component is contracted in the cavity in the wall of the containing cylinder 1 (at this time, the folding component is positioned under the action of the positioning device), the drying agent is not contacted with the outside, after the sulfur hexafluoride load switch operates for a period of time, the rubber pad arranged between the upper and lower shells is aged and a gap is generated at the connecting part of the upper and lower shells (sulfur hexafluoride gas inside the switch is caused to leak outwards), as shown in fig. 7, sulfur hexafluoride gas in the switch leaks out to the accommodating cylinder 1 through the gap, since sulfur hexafluoride gas has a higher density than air (about five times of air), sulfur hexafluoride gas leaked to the accommodating cylinder 1 will first sink and fill the bottom of the accommodating cylinder 1, and with the increase of the leakage amount of gas, the air initially located in the accommodating cylinder 1 will be continuously discharged out through the arc-shaped notch 4, so that when the sulfur hexafluoride gas in the accommodating cylinder 1 reaches a certain amount, the gas sensing device located in the accommodating cylinder 1 will be triggered and control the unlocking device to operate, thereby realizing the positioning of the folding assembly by the positioning release device, and after the folding assembly is released from the positioning, the sulfur hexafluoride gas moves from the cavity of the wall of the accommodating cylinder 1 to the arc-shaped notch 4, finally, the folding assembly completely covers the arc-shaped notch 4 (as shown in fig. 7), and the drying agent arranged in the folding assembly is in contact with the outside and starts to work;
because a gap is formed at the connecting part of the upper shell and the lower shell at the moment, moisture in the external environment easily enters the accommodating cylinder 1 and permeates into the sulfur hexafluoride switch through the gap, so that the humidity inside the switch is increased (the normal operation of the switch is influenced), when the arc-shaped gap 4 is covered by the folding component, the external moisture can be adsorbed by the drying agent when permeating into the accommodating cylinder 1, so that the condition that the moisture in the external environment permeates into the switch is avoided, and because the drying agent adopts active alumina, the drying agent can adsorb moisture and simultaneously can absorb gas mixed in the sulfur hexafluoride (which is nontoxic) such as thionyl fluoride, sulfur tetrafluoride, sulfur difluoride, hydrogen fluoride and other toxic gases (the sulfur hexafluoride can decompose the gas under the action of an electric arc), and when the sulfur hexafluoride mixed gas leaked into the accommodating cylinder 1 passes through the arc-shaped gap 4 and is diffused outwards through the folding component, the toxic gas generated by the electric arc in the sulfur hexafluoride can be absorbed (the toxic gas is prevented from diffusing into the external environment);
as shown in fig. 5, a cover plate 5 is rotatably mounted on the outer wall of the accommodating cylinder 1 coaxially with the axis (the length of the cover plate 5 is greater than that of the arc-shaped notch 4), and a contact plate 6 is slidably mounted on the cover plate 5 along the radial direction, when the arc-shaped notch 4 is covered by the folding assembly, the lower end surface of the contact plate 6 just contacts against the folding assembly, a gas device is disposed in the folding assembly, and when moisture in the outside air is large (the desiccant disposed in the folding assembly releases heat when absorbing the moisture), the gas device disposed in the folding assembly generates gas after receiving the heat released by the desiccant due to the moisture absorption of the desiccant (the moisture in the outside air is larger, the desiccant absorbs more moisture, the more heat is released, and the more gas generated by the gas device), the gas device drives the cover plate 5 to move along the outer wall of the accommodating cylinder 1 (i.e., move towards the direction of closing the arc gap 4, at this moment, the spring connected between the plugging plate and the containing cylinder 1 is compressed), the abutting plate 6 is synchronously driven to move along the radial direction thereof towards the direction of extruding the folding assembly in the moving process of the plugging plate 5, namely, the folding assembly is folded from the state shown in figure 7 to the state shown in figure 8, the position shown in figure 8 is the limit position of the movable plugging plate 5, at this moment, the plugging plate 5 closes part of the arc gap 4, the folding assembly is folded under the action of the abutting rod (the folding assembly is divided into two parts, namely, folding and unfolding at this moment), a diversion cavity 7 is arranged in the containing cylinder 1, the folding assembly which is folded at this moment is matched with the diversion cavity 7, so that the moisture in the outside air is required to enter the containing cylinder 1 and must firstly pass through the filtration of the unfolded part of the folding assembly, drying, filtering and drying by the folding part under the action of the diversion cavity 7, and double filtering and drying, so that moisture in the external environment is further inhibited from entering the accommodating cylinder 1, and the amount of moisture permeating into the sulfur hexafluoride switch is reduced to the maximum extent;
if the air humidity in the external environment is obviously reduced, the desiccant arranged in the folding assembly does not absorb moisture any more, and further does not release heat, at this time, the sealing cover plate 5 starts to move towards the initial position in the opposite direction along with the movement of the sealing cover plate 5, and further synchronously drives the touch rod to move in the opposite direction, at this time, the folding portion of the folding assembly is not squeezed by the touch rod, and further the state shown in fig. 8 is changed to the state shown in fig. 7 until the initial position is recovered (as shown in fig. 7), at this time, the arc-shaped notch 4 is not covered by the sealing cover plate 5, and the folding assembly is filled in the arc-shaped notch 4 again (since the external air is dry at this time, the desiccant arranged in the folding assembly can outwardly release moisture partially absorbed by the desiccant so as to have better moisture absorption performance when being used again), and the position state of the folding assembly in fig. 7 increases the contact area with the external air compared with the position state in fig. 8, so that the volatilization of the moisture can be accelerated.
when the folding assembly is positioned by the positioning device, the first arc-shaped plate 8 is subjected to the adsorption force from the permanent magnet, after the positioning device is released, the first arc-shaped plate 8 and the second arc-shaped plate 9 rotate to the arc-shaped notch 4 along the accommodating cylinder 1 under the magnetic adsorption action of the magnet until the arc-shaped notch 4 is completely covered (as shown in the attached drawing 7), as shown in the attached drawing 3, arc-shaped rods (not numbered in the drawing) are coaxially arranged on the side walls at two ends of the first arc-shaped plate 8, as shown in the attached drawings 7 and 8, arc-shaped grooves (not numbered in the drawing) matched with the arc-shaped rods are arranged on the side walls at two ends of the arc-shaped notch 4 and the side walls at two ends of a cavity for initially accommodating the folding assembly, so that the first arc-shaped plate 8 can always keep moving coaxially with the accommodating cylinder 1 under the matching of the arc-shaped rods and the arc-shaped grooves;
when the first arc-shaped plate 8 and the second arc-shaped plate 9 are in the state shown in fig. 7, the second arc-shaped plate 9 can still keep the same axial position as the accommodating cylinder 1 under the action of the torsion spring (at this time, the first arc-shaped plate 8 and the second arc-shaped plate 9 just cover the arc-shaped notch 4), when the gas device drives the sealing cover plate 5 to move and the touch plate 6 moves towards the direction of extruding the second arc-shaped plate 9, the second arc-shaped plate 9 is forced to rotate relative to the first arc-shaped plate 8 (at this time, the first arc-shaped plate 8 cannot move under the action of the arc-shaped rod and the arc-shaped groove), and finally, the state is changed into the state shown in fig. 8.
as shown in fig. 5, the pipeline is communicated with one end of the arc-shaped cavity 14 far from the airbag 3 through a hose, when the humidity of the outside air is high and the desiccant starts to absorb water and release heat, the carbonic acid solution in the liquid storage cavity 12 releases carbon dioxide gas and enters the corresponding air chamber 13 through the waterproof breathable film 44, the carbon dioxide gas in the air chamber 13 in the arc-shaped two plates 9 enters the air chamber 13 of the arc-shaped one plate 8 through the hose and finally enters the arc-shaped cavity 14 through the pipeline, a transmission device is arranged in the arc-shaped cavity 14, and the sealing cover plate 5 is driven by the transmission device to rotate along the wall of the accommodating cylinder 1 along with the continuous entering of the carbon dioxide gas, that is, the position shown in fig. 7 is changed to the position shown in fig. 8, and in the moving process of the sealing cover plate 5, the effect of pressing the arc-shaped two plates 9 downwards and rotating relative to the arc-shaped one plate 8 is realized through the touch plate 6.
Embodiment 4, on the basis of embodiment 3, as shown in fig. 5, the transmission device includes a piston plate 15 slidably installed in and elastically connected to the arc-shaped cavity 14, the piston plate 15 is disposed at one end outside the arc-shaped cavity 14 and connected to the cover plate 5, one side of the arc-shaped cavity 14 close to the airbag 3 is communicated with the outside, when carbon dioxide gas enters the arc-shaped cavity 14, the piston plate 15 is forced to move in the arc-shaped cavity 14 (so that a spring connected between the piston plate 15 and the arc-shaped cavity 14 is compressed), and the cover plate 5 is synchronously moved along with the movement of the piston plate 15;
as shown in fig. 6, a gear set 17 is rotatably mounted on the cover plate 5, and a gear system engaged with one gear of the gear set 17 is disposed on the touch plate 6, as shown in fig. 7 and 8, an arc-shaped rack 16 coaxially disposed with the accommodating cylinder 1 is disposed on the arc-shaped cavity 14, and the arc-shaped rack 16 is engaged with another gear of the gear set 17, when the cover plate 5 moves, the touch plate 6 is driven to move along the radial direction of the accommodating cylinder 1 and towards the direction of extruding the arc-shaped two plates 9 synchronously by the cooperation of the arc-shaped rack 16 and the gear set 17.
Embodiment 5, on the basis of embodiment 1, as shown in fig. 1 and 2, two ends of the accommodating cylinder 1 are respectively provided with a transmission pipe 18 communicated with the arc-shaped cavity 14, and the transmission pipe 18 is communicated with the arc-shaped cavity 14 through a conduction valve (as shown in fig. 5, the connection position of the conduction valve and the arc-shaped cavity 14 is at the position of the piston plate 15 at the initial time and at the side away from the spring), the transmission pipe 18 is communicated with a detection pipe 19, as shown in fig. 1, the transmission pipes 18 arranged at the two ends of the accommodating cylinder 1 penetrate into the sulfur hexafluoride switch from the outside to the inside, the detection pipe 19 is arranged in the sulfur hexafluoride switch, and the tail end of the detection pipe 19 also extends out of the sulfur hexafluoride switch from the inside to the outside and is communicated with the outside;
as shown in fig. 10, a bearing ring 20 is axially slidably mounted on the detection tube 19, a detection ring 21 is coaxially rotated on the bearing ring 20, a humidity detection probe 22 (connected with an electrical loop and connected with a remote control terminal) is mounted on an outer wall of the detection ring 21, a pin 24 matched with the spiral groove 23 is radially arranged on an inner wall of the detection ring 21, when the bearing ring 20 axially moves along the detection tube 19 (as shown in fig. 10, rail grooves for realizing axial movement of the bearing ring 20 are respectively arranged on two axial sides of an outer wall of the detection tube 19, so that a width of the rail groove is smaller than an outer diameter of the pin 24, when the weight of the pin 24 passes through a handover position between the spiral groove 23 and the rail grooves, the pin 24 can still move along the spiral groove 23 without being influenced by the rail grooves), the detection ring 21 can be driven to rotate by cooperation of the pin 24 and the spiral groove 23, the humidity detection probe 22 is driven to make a circular motion (so as to enlarge a detection area) when the weight of the pin 24 passes through the handover position between the spiral groove 23 and the rail groove, as shown in fig. 11, a movement mechanism can drive the bearing ring 20 to make a continuous movement along the arc-shaped gas conduction cavity 19, and the arc-shaped gas conduction valve 14, and the piston 14 can be driven to move to a closed when the arc-shaped gas conduction plate 14 is continuously moved to the arc-shaped gas conduction plate 14, and the arc-shaped conduction plate 14, and the carbon dioxide conduction valve 14, when the carbon dioxide conduction plate is still moved to the arc-shaped conduction plate 14, and the arc-shaped gas conduction plate 14, and the arc-shaped conduction plate is continuously moved to the arc-shaped gas conduction plate 14, and the arc-shaped conduction plate 14, the carbon dioxide gas generated at this time enters the transfer pipe 18 and enters the detection pipe 19 through the conduction valve;
when carbon dioxide gas enters the detection tube 19, the moving mechanism arranged in the detection tube 19 is forced to act and synchronously drives the bearing ring 20 to move axially (in the process that the moving mechanism moves in the detection tube 19, air initially positioned in the detection tube 19 is discharged to the outside through the tail end of the detection tube 19), and when the bearing ring 20 moves, the humidity detection probe 22 synchronously moves circularly along with the detection ring 21 and linearly moves in the sulfur hexafluoride switch at the same time, so that the area which can be detected by the humidity detection probe 22 is enlarged (at the moment, because the humidity of the outside air is larger, moisture invades into the switch through a gap part generated between the upper shell and the lower shell and is accumulated at the gap position, and because the uncertainty of the gap position is generated, the humidity detection range of the humidity detection probe 22 can be enlarged in the switch moving direction, the area position with larger humidity in the switch can be timely found), compared with the traditional detection mode that the humidity detection probe 22 is fixedly arranged in the switch, the detection method has higher flexibility and sensitivity;
as shown in fig. 5, if the humidity of the external air gradually rises (or is in a dry state), the desiccant no longer absorbs moisture and no longer generates heat, at this time, the temperature of the carbonic acid solution in the liquid storage cavity 12 decreases (the solubility of the carbon dioxide starts to rise), so that the carbon dioxide gas entering the arc-shaped cavity 14 firstly returns to the liquid storage cavity 12 and is dissolved in the carbonic acid solution again, with the backflow and dissolution of the carbon dioxide, the piston plate 15 (the cover plate 5) is synchronously moved to the initial position, when the piston plate 15 moves to the initial position, the carbon dioxide gas does not move, with the continuous decrease of the temperature of the carbonic acid solution, the solubility of the carbon dioxide gas further increases, at this time, the pressure in the space on the side of the piston plate 15 away from the spring decreases, at this time, the moving mechanism located in the detection tube 19 moves in the opposite direction under the external atmospheric pressure (the end of the detection tube 19 is communicated with the outside), with the opposite direction of the moving mechanism, so that the carbon dioxide gas entering the detection tube 19 returns to the arc-shaped cavity 14 through the transmission tube 18 and is finally absorbed by the carbonic acid solution, and the moving of the probe 20 moves in the opposite direction, and the moving of the moving plate 25, so that the probe performs a secondary inspection along with the circular motion, and the circular motion of the probe, thereby realizing the inspection effect of the circular motion.
In embodiment 6, as shown in fig. 12, in addition to embodiment 5, the moving mechanism includes a moving plate 25 slidably mounted in the detection tube 19 (the contact portion between the inner wall of the detection tube 19 and the moving plate 25 is made of a material with a small friction coefficient to reduce the sliding resistance therebetween), a seal ring is provided on the circumferential surface of one end of the moving plate 25, a strong magnet is built in the moving plate 25, and an iron piece is covered on the inner wall of the carrier ring 20, so that when the moving plate 25 moves in the detection tube 19 under the push of carbon dioxide gas, the carrier ring 20 is synchronously moved by the magnetic attraction force of the strong magnet and the iron piece built in the moving plate 25.
Example 7, based on example 5, as shown in fig. 5, the delivery tube 18 is in communication with the arc-shaped chamber 14 through a stepped tube 26, the conducting valve includes a valve ball 27 axially slidably mounted at one end of the stepped tube 26 with a larger diameter and elastically connected thereto (a spring is connected between the valve ball 27 and the stepped tube 26), a stepped channel 28 is penetrated in the valve ball 27, and a moving ball 29 is axially slidably mounted in the stepped channel 28, initially, when carbon dioxide enters the arc-shaped chamber 14, the piston plate 15 is forced to move in the arc-shaped chamber 14 (at this time, the air pressure in the arc-shaped chamber 14 is small, and at this time, the air pressure is insufficient to overcome the acting force of the spring on the valve ball 27, so that the stepped tube 26 is in a non-conducting state), and with continuous generation of carbon dioxide, the piston plate 15 moves to a limit position in the arc-shaped chamber 14 (at this time, the piston plate 15 cannot move continuously), so that the air pressure in the arc-shaped chamber 14 is continuously increased, so that the force on the valve ball 27 is overcome the acting on the spring and the valve ball 27 is forced to move away from the arc-shaped chamber 14, so that the gas continuously generated in a conducting state, and the gas continuously generated by the stepped tube 26 enters the delivery tube 18 and finally enters the delivery tube 19, so that the subsequent carbon dioxide delivery tube 18, and the delivery tube 19, and the detection process is finally achieved;
when the humidity of the outside air is gradually reduced (or becomes drier), the desiccant in the folding assembly no longer absorbs moisture in the air, and thus no heat is released, at this time, the temperature of the carbonic acid solution in the liquid storage chamber 12 is gradually reduced (so that the solubility of the carbon dioxide gas is increased), at this time, the carbon dioxide gas in the arc-shaped chamber 14 will firstly flow back into the liquid storage chamber 12 and be dissolved in the carbonic acid solution again (in this process, the piston plate 15 moves towards the initial position synchronously), so that when the piston plate 15 moves to the initial position (i.e., as shown in fig. 5), the piston plate 15 cannot move continuously (the inner wall of the arc-shaped chamber 14 is provided with a stopper for stopping the piston plate 15 at this position, so as to limit the position of the piston plate 15, the stopper is not shown), along with the continuous cooling of the carbonic acid solution, the solubility of the carbon dioxide further increases, so that the pressure in the space on the side of the piston plate 15 away from the spring connected therewith is further reduced, at this time, the carbon dioxide gas in the transfer pipe 18, the detection pipe 19 generates a pressure difference, and then the moving ball 29 moves towards the space of the arc-shaped chamber 14, so that the carbon dioxide gas flow is reduced to the step 26, and the carbon dioxide gas flow is finally flows into the arc-shaped chamber 26, and the space under the atmosphere pressure difference, so that the carbon dioxide gas flow is reduced in the arc-shaped chamber 26, and the space is reduced flow gradient 26, and the arc-shaped chamber 26, and the carbon dioxide-shaped chamber 26 is opened, and the carbon dioxide-shaped chamber 26 is moved step 26 is moved into the arc-shaped chamber 26, the moving plate 25 is synchronously forced to move toward the initial position (finally to the initial position) within the detection tube 19.
during operation, a certain amount of desiccant (such as activated alumina) can be put into the moisture absorption cylinder 31, as shown in fig. 1, at ordinary times, the moisture absorption material 32 which has strong moisture absorption and is positioned on the outer wall of the moisture absorption cylinder 31 absorbs moisture in the switch and transfers the moisture to the moisture absorption material 32 positioned on the inner side of the moisture absorption cylinder 31, and at this time, the desiccant positioned in the moisture absorption cylinder 31 absorbs moisture absorbed by the moisture absorption material 32 (the desiccant plays a role of performing secondary drying on the moisture absorption material 32);
as shown in fig. 11, a semi-circular opening 33 is formed in the lower half of the moving plate 25, a baffle 34 is rotatably mounted on the side of the moving plate 25 facing the rectangular cavity 30 (a torsion spring 35 is provided at a rotating portion of the baffle 34 and the moving plate 25, and under a normal condition, the baffle 34 seals the semi-circular opening 33 under the action of the torsion spring 35), a sealing ring is provided at a matching portion of the baffle 34 and the semi-circular opening 33 to ensure airtightness (by providing a sealing ring at a contacting portion of the moving plate 25 and an inner wall of the detection tube 19 and at a matching portion of the baffle 34 and the semi-circular opening 33, under a condition that sealing performance is ensured, moisture in the outside air is effectively inhibited from entering the detection tube through the end of the detection tube and entering the moisture absorption tube 31 through the moving plate, when carbon dioxide enters the detection tube 19 from the transmission tube 18, the gas acts on the wall of the moving plate 25 and forces the movement of the baffle 34, when a new desiccant needs to be added into the moisture absorption tube 31, an operator can put the desiccant into the detection tube 19 through the opening 2 at this time, and pay attention that the desiccant 19 moves in the detection tube under the action of the air that: when the air pump injects air from the end opening 2 of the detection tube 19, the moving plate 25 and the desiccant are synchronously driven to move in the detection tube 19, so that when the moving plate 25 moves to an initial position (i.e., the moving plate 25 cannot move continuously near the rectangular cavity 30), air continuously enters under the action of the air pump, and further the air pressure in the detection tube 19 located in the right space of the moving plate 25 increases, so that the baffle 34 is driven to rotate (so that the semi-circular opening 33 is opened) by overcoming the acting force of a torsion spring 35 arranged between the baffle 34 and the moving plate 25, and at this time, the desiccant continues to move forward under the action of the air and passes through the semi-circular opening 33, so as to finally move into the rectangular cavity 30 along with the air flow and finally fall into the moisture absorption tube 31 (completing the addition process of the desiccant), as shown in fig. 10, a filter screen 36 is arranged at a position where the rectangular cavity 30 communicates with the detection tube 19, so as to prevent the desiccant from entering the transmission tube 18 (the filter screen 36 achieves the blocking effect of the desiccant, so that the desiccant can fall into the moisture absorption tube 31 along with the air flow when the air flow enters into the rectangular cavity 30).
as shown in figure 7, an unlocking plate 39 vertically slides in a containing barrel 1, a spring is connected between the unlocking plate 39 and the containing barrel 1, the lower end of the unlocking plate 39 is connected with a balloon 38 through a cord 40, as shown in figure 4, a positioning hole 42 is formed in the inner side wall of an arc-shaped two plate 9, a positioning rod 41 (a spring is connected between the positioning rod and the containing barrel) matched with the positioning hole 42 is arranged on the inner wall of the containing barrel 1 in a sliding mode along the radial direction of the inner wall of the containing barrel 1, when the positioning rod 41 is inserted into the positioning hole 42, the folding assembly is in a positioned state, an unlocking rope 43 is connected between the positioning rod 41 and the unlocking plate 39,
when a gap is formed at the contact part between the upper shell and the shell and sulfur hexafluoride gas begins to leak, the balloon 38 is forced to move upwards (the density of the sulfur hexafluoride gas is about five times of that of air), and with the increase of the amount of the sulfur hexafluoride gas, the balloon 38 finally drives the unlocking plate 39 to move downwards in the accommodating cylinder 1 through the cord 40 connected with the balloon, and with the downward movement of the unlocking plate 39, the positioning rod 41 is pulled through the unlocking rope 43 connected with the balloon to withdraw from the positioning hole 42, so that the positioning of the arc-shaped two plates 9 (folding components) is released;
certainly, the gas sensing device in this scheme may also be a sulfur hexafluoride gas monitor (disposed at a position close to the arc-shaped notch 4 of the accommodating cylinder 1), the positioning rod 41 is connected to an electric push rod, and when the sulfur hexafluoride gas monitor detects that the sulfur hexafluoride gas of the accommodating cylinder 1 has risen to the arc-shaped notch 4, the electric push rod acts and drives the positioning rod 41 to withdraw from the positioning hole 42 (the sulfur hexafluoride gas monitor is electrically connected to a microcontroller, and the microcontroller controls the electric push rod to act).
The above description is only for the purpose of illustrating the present invention, and it should be understood that the present invention is not limited to the above embodiments, and various modifications conforming to the spirit of the present invention are within the scope of the present invention.
Claims (9)
1. The railway line electrical equipment detection device comprises a containing cylinder (1) and is characterized in that an opening (2) is formed in one side of the containing cylinder (1), an air bag (3) arranged along the opening (2) is arranged on the containing cylinder (1), an arc-shaped notch (4) is formed in the upper end of the containing cylinder (1), a folding assembly matched with the arc-shaped notch (4) is installed in the containing cylinder (1) in a sliding mode, a drying agent is arranged in the folding assembly, the folding assembly is matched with a positioning device arranged in the containing cylinder (1), a gas sensing device is arranged in the containing cylinder (1), and the gas sensing device is connected with an unlocking device;
be equipped with gas device and gas device drive in the folding assembly and have rotation to install in closing cap (5) of a holding section of thick bamboo (1) outer wall, elastic connection and closing cap (5) are gone up along conflict board (6) of a holding section of thick bamboo (1) radial sliding installation between closing cap board (5) and a holding section of thick bamboo (1), and gas device can drive in step when driving closing cap board (5) and remove and support touch panel (6) along a holding section of thick bamboo (1) radial movement and make the folding assembly folding, be equipped with in the holding section of thick bamboo (1) with folding assembly complex water conservancy diversion chamber (7).
2. The railway line electrical equipment detection device according to claim 1, wherein the folding assembly comprises a first arc-shaped plate (8) which is coaxially rotatably mounted on the wall of the accommodating cylinder (1), and a second arc-shaped plate (9) is rotatably mounted at one end, away from the air bag (3), of the first arc-shaped plate (8) and one end, away from the air bag (3), of the first arc-shaped plate (8), a placing cavity (10) is formed in the second arc-shaped plate (9), a drying agent is placed in the placing cavity (10), air holes (11) are uniformly formed in the inner side wall and the outer side wall of the placing cavity (10), an iron sheet is arranged on one side, facing the air bag (3), of the first arc-shaped plate (8), and a permanent magnet is arranged on the wall of the arc-shaped notch (4).
3. The railway line electrical equipment detection device according to claim 2, wherein the gas device comprises liquid storage cavities (12) which are arranged in the first arc-shaped plate (8) and the second arc-shaped plate (9) and located between the placing cavities (10), carbonic acid solution is stored in the liquid storage cavities (12), air chambers (13) communicated with the liquid outlet cavities are arranged on two sides of the first arc-shaped plate (8) and the second arc-shaped plate (9), a plurality of the air chambers (13) are communicated with the arc-shaped cavities (14) arranged on the containing barrel (1), and the arc-shaped cavities (14) drive the sealing plate (5) through a transmission device.
4. The railway along-line electrical equipment detection device according to claim 3, wherein the transmission device comprises a piston plate (15) which is slidably mounted in the arc-shaped cavity (14) and is elastically connected with the arc-shaped cavity, the piston plate (15) is arranged at one end outside the arc-shaped cavity (14) and is connected with the sealing cover plate (5), an arc-shaped rack (16) which is coaxially arranged with the accommodating cylinder (1) is fixed on the arc-shaped cavity (14), and the arc-shaped rack (16) drives the abutting plate (6) through a gear set (17).
5. The railway along-line electrical equipment detection device as claimed in claim 1, wherein the arc-shaped cavity (14) is connected with a transmission pipe (18) through a conduction valve, the transmission pipe (18) is communicated with a detection pipe (19), a bearing ring (20) is axially slidably mounted on the detection pipe (19), a detection ring (21) is coaxially and rotatably mounted on the bearing ring (20), a humidity detection probe (22) is fixed on the detection ring (21), a spiral groove (23) is formed in the outer wall of the detection pipe (19), a pin (24) matched with the spiral groove (23) is radially arranged on the inner wall of the detection ring (21), a moving mechanism is arranged in the detection pipe (19) and can drive the detection ring (21) to move, and the tail end of the detection pipe (19) is communicated with the outside.
6. The along-railway electrical equipment detection device as claimed in claim 5, wherein the moving mechanism comprises a moving plate (25) slidably mounted in the detection tube (19), the moving plate (25) is provided with strong magnets inside, and the inner wall of the monitoring ring is covered with iron sheets.
7. A railway line electrical equipment detection device according to claim 5, wherein the transmission pipe (18) is communicated with the arc-shaped cavity (14) through a stepped pipe (26), the conduction valve comprises a valve ball (27) which is axially slidably mounted at one end of the stepped pipe (26) with a larger diameter and is elastically connected with the stepped pipe, a stepped channel (28) is arranged in the valve ball (27) in a penetrating manner through the middle axis of the valve ball, a moving ball (29) is axially slid at one end of the stepped channel (28) with a larger diameter, and the moving ball (29) is elastically connected with the stepped channel (28).
8. The railway along-line electrical equipment detection device as claimed in claim 6, wherein a rectangular cavity (30) is integrally formed in a position, away from the terminal opening (2), of the detection tube (19), a moisture absorption cylinder (31) is communicated with the bottom of the rectangular cavity (30), moisture absorption materials (32) are respectively covered on the inner wall and the outer wall of the moisture absorption cylinder (31), the moisture absorption materials (32) on the inner wall and the outer wall are connected through the same material, a semi-circular opening (33) is formed in the lower half part of the moving plate (25), a baffle (34) matched with the semi-circular opening (33) is rotatably installed on one side, facing the rectangular cavity (30), of the moving plate (25), a torsion spring is arranged between the baffle (34) and the moving plate (25), and a filter screen (36) is arranged at a communication position between the rectangular cavity (30) and the detection tube (19).
9. The along-rail electrical equipment detection device according to claim 8, wherein a three-way control valve (37) is integrally provided on the transmission pipe (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210146655.4A CN115290995A (en) | 2022-02-17 | 2022-02-17 | Detection device for electrical equipment along railway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210146655.4A CN115290995A (en) | 2022-02-17 | 2022-02-17 | Detection device for electrical equipment along railway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115290995A true CN115290995A (en) | 2022-11-04 |
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ID=83820368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210146655.4A Withdrawn CN115290995A (en) | 2022-02-17 | 2022-02-17 | Detection device for electrical equipment along railway |
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| Country | Link |
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| CN (1) | CN115290995A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116400011A (en) * | 2023-03-09 | 2023-07-07 | 中国环境科学研究院 | Regional scale ecosystem carbon flux unmanned aerial vehicle airborne automatic detection equipment |
-
2022
- 2022-02-17 CN CN202210146655.4A patent/CN115290995A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116400011A (en) * | 2023-03-09 | 2023-07-07 | 中国环境科学研究院 | Regional scale ecosystem carbon flux unmanned aerial vehicle airborne automatic detection equipment |
| CN116400011B (en) * | 2023-03-09 | 2023-09-05 | 中国环境科学研究院 | Regional scale ecosystem carbon flux unmanned aerial vehicle airborne automatic detection equipment |
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Application publication date: 20221104 |