CN114709745A - Pressure relief structure and pressure relief method for safety explosion prevention of inflatable cabinet - Google Patents
Pressure relief structure and pressure relief method for safety explosion prevention of inflatable cabinet Download PDFInfo
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- CN114709745A CN114709745A CN202210475809.4A CN202210475809A CN114709745A CN 114709745 A CN114709745 A CN 114709745A CN 202210475809 A CN202210475809 A CN 202210475809A CN 114709745 A CN114709745 A CN 114709745A
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- shell
- fixedly connected
- threaded rod
- pressure relief
- gas
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/02—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by distortion, beating, or vibration of the surface to be cleaned
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/025—Safety arrangements, e.g. in case of excessive pressure or fire due to electrical defect
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/045—Details of casing, e.g. gas tightness
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Air-Flow Control Members (AREA)
Abstract
The invention discloses a pressure relief structure and a pressure relief method for safety explosion prevention of an inflatable cabinet, belonging to the technical field of inflatable cabinets, and comprising a shell, wherein one end of the shell is fixedly connected with a sealing plate, the top end of the sealing plate is provided with a pressure relief opening, the top end of the shell is connected with an upper cover in a sliding manner, two sides of the bottom end of the upper cover are fixedly connected with limiting plates, and the interior of the shell is rotatably connected with a first threaded rod. So that the gas can be effectively reduced in temperature when discharged.
Description
Technical Field
The invention relates to the technical field of inflatable cabinets, in particular to a pressure relief structure and a pressure relief method for safety and explosion prevention of an inflatable cabinet.
Background
The gas-filled cabinet is also called indoor alternating-current high-voltage gas insulated metal-enclosed switchgear, and is a new generation of switchgear, a main switch can be a permanent magnet mechanism vacuum circuit breaker or a spring mechanism vacuum circuit breaker, the whole cabinet is combined with a sulfur hexafluoride gas compartment in an air insulation mode, the gas-filled cabinet is compact and expandable, and is suitable for distribution automation, and once a circuit short-circuit fault occurs in the operation process of the gas-filled cabinet, high-temperature high-voltage gas can be instantly generated in the cabinet under the action of short-circuit current of tens of thousands of amperes. If high-temperature high-pressure gas cannot be effectively released in a short time in a narrow cabinet body, the inflatable cabinet can be cracked, the adjacent inflatable cabinets are damaged, and the personal safety can be hurt, so that the inflatable cabinet needs effective pressure relief measures to discharge the high-temperature high-pressure gas accumulated in the cabinet body.
The invention discloses a pressure relief channel of an inflatable cabinet, the inflatable cabinet and an inflatable cabinet group, wherein the invention has the application number of CN112943988A, the pressure relief channels of adjacent inflatable cabinets are mutually communicated, and the communication part of the first pressure relief ports of the adjacent inflatable cabinets is provided with a sealing element, so that the pressure relief cavities of the inflatable cabinets are communicated, the pressure relief air in a single inflatable cabinet is buffered again, the pressure relief space is increased, and the pressure relief can be carried out more efficiently.
However, the problem that the gas generated by the short circuit of the gas-filled cabinet is high-temperature high-pressure gas, even if the high-pressure gas is released from the inside of the gas-filled cabinet, the gas pressure in the gas-filled cabinet can be relieved, the released gas is not subjected to cooling treatment, so that the high-temperature gas is directly released, and the potential safety hazard still exists when the high-temperature gas is directly discharged.
Based on the above, the invention designs a pressure relief structure and a pressure relief method for safety and explosion prevention of an inflatable cabinet, so as to solve the problems.
Disclosure of Invention
The invention aims to provide a pressure relief structure and a pressure relief method for safety and explosion prevention of an inflatable cabinet, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a pressure relief structure for safety explosion prevention of an inflatable cabinet comprises a shell, wherein a sealing plate is fixedly connected to one end of the shell, a pressure relief opening is formed in the top end of the sealing plate, an upper cover is slidably connected to the top end of the shell, limiting plates are fixedly connected to two sides of the bottom end of the upper cover, a first threaded rod is rotatably connected to the interior of the shell, a second threaded rod is rotatably connected to the interior of the shell, a transmission belt is jointly sleeved on the first threaded rod and the second threaded rod, a one-way bearing is sleeved on the exterior of the second threaded rod, a second gear is fixedly connected to the one-way bearing, a third threaded rod is rotatably connected to the interior of the bottom end of the shell, two groups of the one-way bearings are arranged, a one-way bearing is sleeved on the exterior of the third threaded rod, a first gear is fixedly connected to the one-way bearing, and a chain is fixedly connected to the bottom end of the limiting plate, first gear, second gear are equallyd divide do not with the chain meshing, fixedly connected with fixes the cover on the inner wall of casing, the inside of fixed cover is provided with the rotary drum, the inside fixedly connected with torsional spring of rotary drum, the other end and the casing fixed connection of torsional spring, fixed cover and rotary drum fixed connection are passed to chain one end, the inside cooling mechanism that is provided with of casing, gaseous temperature when cooling mechanism is used for the water spray to reduce the pressure release, equally divide on first gear, third threaded rod, the second gear and do not be provided with dewatering mechanism, dewatering mechanism is used for getting rid of the inside moisture of casing.
As a further scheme of the invention, the cooling mechanism comprises a water storage tank, the water storage tank is fixed at one end of a shell, a water inlet pipe is fixedly connected at the upper end of the water storage tank, a communicating pipe is fixedly connected inside the shell, a plurality of atomizing nozzles which are distributed equidistantly are arranged on the outer wall of the communicating pipe, one end of the communicating pipe penetrates through the shell and is fixedly connected with the water storage tank, a fixed pipe is fixedly connected to one side of the upper end of the water storage tank, the other end of the fixed pipe penetrates through the shell and is arranged inside the shell, a sealing sleeve is slidably connected inside the fixed pipe, a one-way valve is fixedly connected onto the sealing sleeve, one end of the sealing sleeve is rotatably connected with a swing rod, the other end of the swing rod is rotatably connected with a transmission rod, a fan blade is fixedly connected to the bottom end of the transmission rod, and the fan blade is rotatably arranged inside the shell.
As a further scheme of the invention, the water removing mechanism comprises a sealing frame, the sealing frame is slidably sleeved outside the third threaded rod, one end of the sealing frame is fixedly connected with a connecting block, the other end of the connecting block is fixedly connected with a fixed rod, the upper end of the fixed rod is fixedly connected with a water absorbing sleeve in threaded connection with the third threaded rod, the outside of the fixed rod is sleeved with the water absorbing sleeve, and the water removing mechanism further comprises a vibration component which vibrates the shell to absorb water attached to the inner wall of the shell by the water absorbing sleeve.
As a further scheme of the invention, the vibration assembly comprises a rack, the rack is fixed at the bottom end of the limiting plate, a toothed bar is meshed and connected to the limiting plate, one end of the toothed bar is rotatably connected with a fixing plate, one end of the fixing plate is fixedly connected with the shell, a non-circle center position of one end of the toothed bar is fixedly connected with a shifting lever, a fixing seat is fixedly connected to the inner wall of one end of the shell, one end of the fixing seat is rotatably connected with a wane, the shifting lever can shift the wane to rotate, and a striking plate used for contacting with the inner wall of the shell is fixed at one end of the wane.
As a further scheme of the invention, two groups of driving motors are fixed at one end of the shell, the output ends of the two groups of driving motors are respectively and fixedly connected with the second threaded rod and the third threaded rod, and the input ends of the driving motors are electrically connected with an external power supply.
As a further aspect of the present invention, when the position-limiting plate is located inside the housing, the torsion spring is in a twisted state.
As a further scheme of the invention, three groups of communicating pipes are arranged, and the three groups of communicating pipes are fixed in the shell at equal intervals.
A safe explosion-proof pressure relief method of an inflatable cabinet comprises the following steps:
the method comprises the following steps: when the gas-filled cabinet generates a large amount of high-temperature and high-pressure gas due to short circuit, the gas enters the shell from the pressure relief port through the pressure relief valve at the bottom of the gas-filled cabinet, and the gas pushes the upper cover to rise;
step two: the upper cover rises to drive the chain to stretch out from the torsional spring inside the fixed sleeve, the chain drives the first gear and the second gear to rotate in the rising process, and the third threaded rod and the second threaded rod do not rotate together with the first gear and the second gear under the action of the one-way bearing;
step three: the gas is discharged from an opening on the limiting plate, the high-pressure gas can drive the fan blades to rotate, the fan blades enable the sealing sleeve to reciprocate in the fixed pipe through the swing rod, the sealing sleeve extrudes the water storage tank to extrude liquid in the water storage tank into the communicating pipe and spray out through the atomizing nozzle, the sealing sleeve sucks air into the water storage tank through the one-way valve during reverse movement, the liquid sprayed out by the atomizing nozzle is contacted with the high-temperature high-pressure gas to be evaporated, and heat in the gas is absorbed;
step four: after the gas is exhausted, the chain pulls the upper cover to descend, a second gear meshed with the chain drives a second threaded rod to rotate, the water absorption sleeve slides into the shell to be in contact with the inner wall of the shell to absorb water, meanwhile, the rack descends along with the limiting plate, the rocker is pulled by the rack to swing back and forth, the knocking plate at one end of the rocker knocks the shell, and the water attached to the inner wall of the shell is in contact with the water absorption sleeve to be absorbed by the water absorption sleeve under the vibration of the water and the water absorption sleeve;
step five: the driving motor that starts casing one side drives second threaded rod, third threaded rod and rotates, and the outside that will absorb water the cover slip and release the casing dries moisture.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention adopts the L-shaped pressure relief channel, is butted with the pressure relief valve at the bottom end of the inflatable cabinet through the pressure relief opening at one end, when high-temperature and high-pressure gas is accumulated in the inflatable cabinet due to short circuit, the gas can be discharged into the device through the pressure relief valve, the pressure relief is completed by opening the upper cover which can slide at the upper end of the device, and the water in the water storage tank at one side can be sprayed into the shell by utilizing the power provided by the high-pressure gas during the pressure relief, and the water is in contact with the high-temperature gas to carry out evaporation reaction to reduce the temperature of the gas, so that the temperature of the gas can be effectively reduced when the gas is discharged.
2. The invention adopts a water removal mechanism, the water removal mechanism is contacted with the inner wall of the shell through the water absorption sleeve, water sprayed inside the shell is absorbed, and the water removal mechanism is used for preventing the influence of moisture caused by excessive moisture inside the shell on the normal work of the inflatable cabinet, the water absorption sleeve is arranged inside the shell in a sliding mode through a structure with a sliding screw rod, the rotation of the screw rod is controlled by the sliding of the upper cover above the shell, namely, gas rushes out the upper cover during pressure relief and is discharged, the resetting of the upper cover and the driving motor are matched together to control the rotation of the screw rod to control the sliding of the water absorption sleeve after the pressure relief is finished, and then water beads attached to the inside of the shell are shaken under the knocking action of the vibration assembly on the shell, so that the water inside the shell can be effectively absorbed.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is an enlarged view of the structure at A in FIG. 2;
FIG. 4 is an enlarged view of the structure at B in FIG. 2;
FIG. 5 is a schematic view of the overall structure of the fan blades, the transmission rod, the fixing tube and the swing rod;
FIG. 6 is a schematic view of a water removing mechanism;
fig. 7 is a schematic sectional view of the front side of the fixing sleeve;
fig. 8 is an overall flow chart of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a housing; 2. a pressure relief port; 3. a sealing plate; 4. an upper cover; 5. a water inlet pipe; 6. a water storage tank; 7. a communicating pipe; 8. an atomizing nozzle; 9. a fixed tube; 10. a water absorption sleeve; 12. a first threaded rod; 13. a second threaded rod; 14. a chain; 15. a first gear; 16. a third threaded rod; 17. fixing a sleeve; 18. a second gear; 19. a one-way bearing; 20. a transmission belt; 21. a rack; 22. a fixing plate; 23. a rack bar; 24. a seesaw; 25. a fixed seat; 26. Knocking the plate; 27. a fan blade; 28. a transmission rod; 29. sealing sleeves; 30. a swing rod; 31. a seal holder; 32. connecting blocks; 33. fixing the rod; 34. connecting blocks; 35. a rotating drum; 36. a torsion spring; 41. and a limiting plate.
Detailed Description
Referring to fig. 1-8, the present invention provides a technical solution: a pressure relief structure for safety explosion prevention of an inflatable cabinet comprises a shell 1, wherein a sealing plate 3 is fixedly connected to one end of the shell 1, a pressure relief opening 2 is formed in the top end of the sealing plate 3, an upper cover 4 is slidably connected to the top end of the shell 1, limiting plates 41 are fixedly connected to two sides of the bottom end of the upper cover 4, a first threaded rod 12 is rotatably connected to the inside of the shell 1, a second threaded rod 13 is rotatably connected to the inside of the shell 1, a transmission belt 20 is jointly sleeved on the first threaded rod 12 and the second threaded rod 13, a one-way bearing 19 is sleeved on the outside of the second threaded rod 13, a second gear 18 is fixedly connected to the one-way bearing 19, a third threaded rod 16 is rotatably connected to the inside of the bottom end of the shell 1, two sets of one-way bearings 19 are jointly arranged, a one-way bearing 19 is sleeved on the outside of the third threaded rod 16, and a first gear 15 is fixedly connected to the one-way bearing 19, the bottom end of the limiting plate 41 is fixedly connected with a chain 14, the first gear 15 and the second gear 18 are respectively meshed with the chain 14, the inner wall of the shell 1 is fixedly connected with a fixing sleeve 17, a rotary drum 35 is arranged inside the fixing sleeve 17, a torsion spring 36 is fixedly connected inside the rotary drum 35, the other end of the torsion spring 36 is fixedly connected with the shell 1, one end of the chain 14 penetrates through the fixing sleeve 17 and is fixedly connected with the rotary drum 35, a cooling mechanism is arranged inside the shell 1 and is used for spraying water to reduce the temperature of gas during pressure relief, and the first gear 15, the third threaded rod 16 and the second gear 18 are respectively provided with a water removing mechanism which is used for removing water inside the shell 1;
when the scheme is put into practical use, the shell 1 is arranged at the rear side of the bottom end of the inflating cabinet, when a large amount of high-temperature high-pressure gas is generated due to short circuit of the inflating cabinet, the gas enters the shell 1 from the pressure relief port 2 through the pressure relief valve at the bottom of the inflating cabinet, the gas pushes the upper cover 4 to ascend and discharge in the shell 1, when the upper cover 4 drives the limit plate 41 to ascend, the chain 14 at the bottom end of the limit plate 41 is upwards stretched, so that the first gear 15 and the second gear 18 meshed with the limit plate 41 rotate, the second threaded rod 13 does not rotate when the second gear 18 rotates due to the arrangement of the one-way bearing 19, and similarly, the third threaded rod 16 does not rotate, so that the position of the dewatering mechanism at one side of the shell 1 is ensured not to be changed, the dewatering mechanism can block the opening at one side of the shell 1 to avoid gas leakage, and the high-temperature high-pressure gas is discharged through the shell 1, when the gas passes through, the upper fan blade 27 of the cooling mechanism is driven to rotate, the reciprocating swing mechanism is driven to swing through the fan blade 27, so that low-temperature liquid is continuously sprayed into the shell 1, the low-temperature liquid is contacted with high-temperature gas to evaporate and drive heat in the gas, the gas is cooled, the temperature of the discharged gas is effectively reduced, after the gas pressure relief is finished, the chain 14 slides downwards under the torsional force of the torsional spring 36 and the self gravity of the upper cover 4, at the moment, the chain 14 drives the second gear 18 to rotate, the second threaded rod 13 is driven to rotate together through the one-way bearing 19, the second threaded rod 13 rotates to slide the dewatering mechanism towards the inside of the shell 1, the water attached to the inner wall of the shell 1 is absorbed, and the effect of cleaning the residual water inside the shell 1 is achieved, the upper cover 4 sliding under pressure is adopted, and the pressure relief can be finished according to the pressure jacking upper cover 4 during the pressure relief, and simultaneously, the temperature of high-temperature and high-pressure gas is effectively reduced by matching with a cooling mechanism.
As a further scheme of the invention, the cooling mechanism comprises a water storage tank 6, the water storage tank 6 is fixed at one end of a shell 1, the upper end of the water storage tank 6 is fixedly connected with a water inlet pipe 5, a communicating pipe 7 is fixedly connected inside the shell 1, a plurality of atomizing nozzles 8 which are distributed equidistantly are arranged on the outer wall of the communicating pipe 7, one end of the communicating pipe 7 penetrates through the shell 1 and is fixedly connected with the water storage tank 6, one side of the upper end of the water storage tank 6 is fixedly connected with a fixed pipe 9, the other end of the fixed pipe 9 penetrates through the shell 1 and is arranged inside the shell 1, a sealing sleeve 29 is slidably connected inside the fixed pipe 9, a one-way valve is fixedly connected on the sealing sleeve 29, one end of the sealing sleeve 29 is rotatably connected with a swing rod 30, the other end of the swing rod 30 is rotatably connected with a transmission rod 28, and the bottom end of the transmission rod 28 is fixedly connected with a fan blade 27, the fan blades 27 are rotatably arranged inside the shell 1;
when the scheme is put into practical use, when the interior of the shell 1 is subjected to tidy cooling treatment, high-temperature high-pressure gas drives the fan blades 27 to rotate, the fan blades 27 drive the transmission rod 28 to rotate, the transmission rod 28 drives the swing rod 30 at one end to swing, the sealing sleeve 29 extends and retracts in the fixed pipe 9 in a reciprocating manner, when the sealing sleeve 29 extends into the fixed pipe 9, the pressure in the water storage tank 6 is increased, water is extruded from the atomizing nozzle 8 through the communicating pipe 7 and sprayed into the shell 1, the water is contacted with moisture when the gas rises, the gas is cooled by absorbing heat in the gas through an evaporation reaction, when the sealing sleeve 29 retracts, air is supplemented into the water storage tank 6 through the check valve on the sealing sleeve 29, the situation that the pressure intensity is large to form resistance when the sealed sealing sleeve 29 retracts is avoided, the air can be supplemented into the water storage tank 6 from the sealing sleeve 29, and the fan blades 27 are driven to rotate through the high pressure of the gas, pressure is provided for the interior of the water storage tank 6 to extrude and spray water from the atomizing nozzle 8, and the atomized water can be more fully contacted with gas to play a role in cooling.
As a further scheme of the invention, the water removing mechanism comprises a sealing frame 31, the sealing frame 31 is slidably sleeved outside the third threaded rod 16, one end of the sealing frame 31 is fixedly connected with a connecting block 34, the other end of the connecting block 34 is fixedly connected with a fixing rod 33, the upper end of the fixing rod 33 is fixedly connected with a 32, the 32 is in threaded connection with the third threaded rod 16, the outside of the fixing rod 33 is sleeved with a water absorbing sleeve 10, and the water removing mechanism further comprises a vibration component which is used for absorbing water attached to the inner wall of the shell 1 by knocking the shell 1 under the action of vibration of the water absorbing sleeve 10;
when the scheme is put into practical use, after pressure relief is completed, when the upper cover 4 is pulled back to the inside of the shell 1 by the chain 14, the chain 14 rotates to drive the second threaded rod 13 to rotate through the second gear 18, meanwhile, the first gear 15 drives the third threaded rod 16 to rotate, the water absorption sleeve 10 slides to the inside of the shell 1, and the water absorption sleeve 10 is fully contacted with the inner wall of the shell 1 to absorb moisture in the sliding process, so that a damp environment cannot occur in the shell 1 due to excessive moisture.
As a further scheme of the invention, the vibration assembly comprises a rack 21, the rack 21 is fixed at the bottom end of a limit plate 41, a rack bar 23 is engaged and connected to the limit plate 41, one end of the rack bar 23 is rotatably connected with a fixed plate 22, one end of the fixed plate 22 is fixedly connected with the housing 1, a shift lever is fixedly connected to a non-circle center position of one end of the rack bar 23, a fixed seat 25 is fixedly connected to the inner wall of one end of the housing 1, one end of the fixed seat 25 is rotatably connected with a rocker 24, the shift lever can shift the rocker 24 to rotate, and a striking plate 26 for contacting with the inner wall of the housing 1 is fixed at one end of the rocker 24;
above-mentioned scheme is when putting into the in-service use, upper cover 4 descends back casing 1 after the pressure release is accomplished inside, rack 21 descends along with limiting plate 41, rack 21 drives ratch 23 and rotates, stir wane 24 reciprocal swing through ratch 23, make shell 1 that strikes that the board 26 that strikes of wane 24 other end reciprocates, shake adnexed moisture on the casing 1 inner wall down and absorb water cover 10 contact and absorbed by the cover 10 that absorbs water, can effectively shake with remaining on the casing 1 inner wall adnexed drop of water down and absorb water cover 10 contact like this, make the water cover 10 can fully absorb the inside moisture of casing 1.
As a further scheme of the present invention, two sets of driving motors are fixed at one end of the housing 1, output ends of the two sets of driving motors are respectively fixedly connected with the second threaded rod 13 and the third threaded rod 16, and input ends of the driving motors are electrically connected with an external power supply;
when the scheme is put into practical use, after the upper cover 4 descends to enable the water absorption sleeve 10 to move to the inside of the shell 1 to absorb moisture in the shell 1, the second threaded rod 13 and the third threaded rod 16 can be driven to rotate through the driving motor, so that the water absorption sleeve 10 after moisture is absorbed in the shell 1 can move to the outside of the shell 1, due to the effect of the one-way bearing 19, when the driving motor drives the second threaded rod 13 and the third threaded rod 16 to rotate to push out the water absorption sleeve 10, the second gear 18 and the first gear 15 cannot rotate along with the rotation, under the effect of the driving motor, the water absorption sleeve 10 after moisture absorption can be brought to the outside of the shell 1 to dry the moisture, and the moisture removal treatment in the shell 1 can be further performed.
As a further aspect of the present invention, when the position-limiting plate 41 is located inside the housing 1, the torsion spring 36 is in a twisted state;
when the scheme is put into practical use, when the shell 1 is in a state of not releasing pressure, the torsion spring 36 twists to have tensile acting force on the chain 14, the upper cover 4 slides above the shell 1 during pressure releasing, the torsion spring 36 is further twisted by the tensile chain 14, the torsion force is larger, and the torsion force of the torsion spring 36 cannot influence the rising of the upper cover 4 due to the larger pressure of air.
As a further scheme of the present invention, the communication pipes 7 are provided with three groups, and the three groups of communication pipes 7 are equidistantly fixed inside the housing 1;
above-mentioned scheme is when putting into practical use, and multiunit communicating pipe 7 can spray the inside whole cross section of casing 1 through atomizing nozzle 8 for it is bigger with 1 gaseous area of contact of casing, and the cooling treatment effect is better.
A safe explosion-proof pressure relief method of an inflatable cabinet comprises the following steps:
the method comprises the following steps: when the gas-filled cabinet generates a large amount of high-temperature and high-pressure gas due to short circuit, the gas enters the shell 1 from the pressure relief port 2 through the pressure relief valve at the bottom of the gas-filled cabinet, and the gas pushes the upper cover 4 to rise;
step two: the upper cover 4 rises to drive the chain 14 to be stretched out from the torsion spring 36 in the fixed sleeve 17, the chain 14 drives the first gear 15 and the second gear 18 to rotate in the rising process, and the third threaded rod 16 and the second threaded rod 13 do not rotate together with the first gear 15 and the second gear 18 under the action of the one-way bearing 19;
step three: the gas is discharged from an opening on the limiting plate 41, the high-pressure gas can drive the fan blades 27 to rotate, the fan blades 27 enable the sealing sleeve 29 to reciprocate in the fixed pipe 9 through the swing rod 30, the sealing sleeve 29 extrudes the water storage tank 6 to extrude liquid in the water storage tank 6 into the communicating pipe 7 and is sprayed out through the atomizing nozzle 8, the sealing sleeve 29 sucks air into the water storage tank 6 through the one-way valve when moving reversely, the liquid sprayed out by the atomizing nozzle 8 is contacted with the high-temperature high-pressure gas to evaporate, and the heat in the gas is absorbed;
step four: after the gas is exhausted, the chain 14 pulls the upper cover 4 to descend, the second gear 18 meshed with the chain 14 drives the second threaded rod 13 to rotate, the water absorbing sleeve 10 slides into the shell 1 to be in contact with the inner wall of the shell 1 to absorb water, meanwhile, the rack 21 descends along with the limiting plate 41 and toggles the rocker 24 to swing back and forth through the rack 23, the knocking plate 26 at one end of the rocker 24 knocks the shell 1, and the water attached to the inner wall of the shell 1 is knocked down to be in contact with the water absorbing sleeve 10 and is absorbed by the water absorbing sleeve 10;
step five: and starting a driving motor on one side of the shell 1 to drive the second threaded rod 13 and the third threaded rod 16 to rotate, and sliding the water absorption sleeve 10 to push the outside of the shell 1 to dry moisture.
The working principle is as follows: the casing 1 is arranged at the rear side of the bottom end of the inflatable cabinet, when a large amount of high-temperature high-pressure gas is generated due to short circuit of the inflatable cabinet, the gas enters the inside of the casing 1 from the pressure relief port 2 through the pressure relief valve at the bottom of the inflatable cabinet, the gas pushes the upper cover 4 to ascend and discharge in the casing 1, when the upper cover 4 drives the limit plate 41 to ascend, the chain 14 at the bottom end of the limit plate 41 is stretched upwards, so that the first gear 15 and the second gear 18 which are meshed with the limit plate 41 rotate, the second threaded rod 13 does not rotate when the second gear 18 rotates due to the arrangement of the one-way bearing 19, and the third threaded rod 16 does not rotate similarly, so that the position of the dewatering mechanism at one side of the casing 1 is not changed, the opening at one side of the casing 1 can be blocked by the dewatering mechanism, gas leakage is avoided, and the fan blades 27 on the cooling mechanism are driven to rotate when the gas passes through, drive the swing of reciprocal swing mechanism through flabellum 27, make low-temperature liquid constantly spray the inside at casing 1, low-temperature liquid and the heat in the gaseous drive of high-temperature gas contact evaporation, thereby handle the cooling to gaseous, make the combustion gas temperature effectively reduce, chain 14 slides down under torsional spring 36 torsional force and upper cover 4 self gravity after gas pressure release is accomplished, chain 14 drives second gear 18 and rotates this moment, it rotates together to drive second threaded rod 13 through one-way bearing 19, second threaded rod 13 rotates and slides dewatering mechanism to casing 1 inside, absorb adnexed moisture on the casing 1 inner wall, play the effect to the inside residual moisture clearance of casing 1.
Claims (8)
1. The utility model provides an aerify safe explosion-proof pressure release structure of using of cabinet, includes casing (1), the one end fixedly connected with closing plate (3) of casing (1), pressure release mouth (2), its characterized in that have been seted up on the top of closing plate (3): the top sliding connection of casing (1) has upper cover (4), the bottom both sides fixedly connected with limiting plate (41) of upper cover (4), the inside of casing (1) is rotated and is connected with first threaded rod (12), the inside of casing (1) is rotated and is connected with second threaded rod (13), drive belt (20) has been cup jointed jointly to first threaded rod (12), second threaded rod (13), one-way bearing (19) has been cup jointed to the outside of second threaded rod (13), fixedly connected with second gear (18) on one-way bearing (19), the bottom internal rotation of casing (1) is connected with third threaded rod (16), one-way bearing (19) is provided with two sets altogether, one-way bearing (19) has been cup jointed to the outside of third threaded rod (16), fixedly connected with first gear (15) on one-way bearing (19), the bottom end of the limiting plate (41) is fixedly connected with a chain (14), the first gear (15) and the second gear (18) are respectively meshed with the chain (14), a fixed sleeve (17) is fixedly connected on the inner wall of the shell (1), a rotary drum (35) is arranged in the fixed sleeve (17), a torsion spring (36) is fixedly connected inside the rotary drum (35), the other end of the torsion spring (36) is fixedly connected with the shell (1), one end of the chain (14) passes through the fixed sleeve (17) and is fixedly connected with the rotary drum (35), the shell (1) is internally provided with a cooling mechanism which is used for spraying water to reduce the temperature of gas during pressure relief, and a water removing mechanism is respectively arranged on the first gear (15), the third threaded rod (16) and the second gear (18), and is used for removing the water in the shell (1).
2. The safety explosion-proof pressure relief structure of the inflatable cabinet as claimed in claim 1, wherein: the cooling mechanism comprises a water storage tank (6), the water storage tank (6) is fixed at one end of a shell (1), a water inlet pipe (5) is fixedly connected to the upper end of the water storage tank (6), a communicating pipe (7) is fixedly connected to the inside of the shell (1), a plurality of atomizing nozzles (8) which are distributed in an equal distance are arranged on the outer wall of the communicating pipe (7), one end of the communicating pipe (7) penetrates through the shell (1) and is fixedly connected with the water storage tank (6), a fixing pipe (9) is fixedly connected to one side of the upper end of the water storage tank (6), the other end of the fixing pipe (9) penetrates through the shell (1) and is arranged inside the shell (1), a sealing sleeve (29) is slidably connected to the inside of the fixing pipe (9), a one-way valve is fixedly connected to the sealing sleeve (29), one end of the sealing sleeve (29) is rotatably connected with a swing rod (30), and the other end of the swing rod (30) is rotatably connected with a transmission rod (28), the fan blade (27) is fixedly connected to the bottom end of the transmission rod (28), and the fan blade (27) is rotatably arranged inside the shell (1).
3. The safety explosion-proof pressure relief structure of the inflatable cabinet as claimed in claim 1, wherein: dewatering mechanism includes seal carrier (31), seal carrier (31) slip cup joints the outside at third threaded rod (16), seal carrier (31) one end fixedly connected with connecting block (34), other end fixedly connected with dead lever (33) of connecting block (34), dead lever (33) upper end fixedly connected with (32), (32) and third threaded rod (16) threaded connection, water absorption cover (10) have been cup jointed to the outside of dead lever (33), dewatering mechanism is still including shaking the subassembly, shaking the subassembly and being absorbed by water absorption cover (10) under knocking casing (1) with the attached moisture vibrations on casing (1) inner wall.
4. The safety explosion-proof pressure relief structure of the inflatable cabinet as claimed in claim 3, wherein: the vibrations subassembly includes rack (21), the bottom at limiting plate (41) is fixed in rack (21), the meshing is connected with ratch (23) on limiting plate (41), the one end of ratch (23) is rotated and is connected with fixed plate (22), the one end and casing (1) fixed connection of fixed plate (22), the one end non-centre of a circle department fixedly connected with driving lever of ratch (23), fixedly connected with fixing base (25) on casing (1) one end inner wall, fixing base (25) one end is rotated and is connected with wane (24), wane (24) can be stirred to the driving lever and rotate, the one end of wane (24) is fixed with and is used for striking board (26) with casing (1) inner wall contact.
5. The safety explosion-proof pressure relief structure of the inflatable cabinet as claimed in claim 1, wherein: the one end of casing (1) is fixed with driving motor, driving motor is provided with two sets ofly altogether, and is two sets of driving motor's output respectively with second threaded rod (13), third threaded rod (16) fixed connection, the driving motor input all with external power source electric connection.
6. The safety explosion-proof pressure relief structure of the inflatable cabinet as claimed in claim 1, wherein: when the limiting plate (41) is positioned in the shell (1), the torsion spring (36) is in a twisted state.
7. The safety explosion-proof pressure relief structure of the inflatable cabinet as claimed in claim 2, wherein: the communicating pipes (7) are provided with three groups, and the communicating pipes (7) are fixed in the shell (1) at equal intervals.
8. A safe explosion-proof pressure relief method of an inflatable cabinet, which is suitable for the safe explosion-proof pressure relief structure of the inflatable cabinet as claimed in claims 1-7, and is characterized by comprising the following steps:
the method comprises the following steps: when the gas-filled cabinet generates a large amount of high-temperature and high-pressure gas due to short circuit, the gas enters the shell (1) from the pressure relief port (2) through the pressure relief valve at the bottom of the gas-filled cabinet, and the gas pushes the upper cover (4) to rise;
step two: the upper cover (4) rises to drive the chain (14) to stretch out from the torsion spring (36) which is twisted in the fixed sleeve (17), the chain (14) drives the first gear (15) and the second gear (18) to rotate in the rising process, and the third threaded rod (16) and the second threaded rod (13) do not rotate together with the first gear (15) and the second gear (18) under the action of the one-way bearing (19);
step three: the gas is discharged from an opening on the limiting plate (41), the high-pressure gas can drive the fan blades (27) to rotate, the fan blades (27) enable the sealing sleeve (29) to reciprocate in the fixed pipe (9) through the swing rod (30), the sealing sleeve (29) extrudes the water storage tank (6) to extrude liquid in the water storage tank (6) into the communicating pipe (7) and spray out through the atomizing nozzle (8), the sealing sleeve (29) sucks air into the water storage tank (6) through the one-way valve during reverse motion, the liquid sprayed out by the atomizing nozzle (8) is contacted with the high-temperature high-pressure gas to evaporate, and the heat in the gas is absorbed;
step four: after the gas is discharged, the chain (14) pulls the upper cover (4) to descend, the second gear (18) meshed with the chain (14) drives the second threaded rod (13) to rotate, the water absorption sleeve (10) slides into the shell (1) to be in contact with the inner wall of the shell (1) to absorb water, meanwhile, the rack (21) descends along with the limiting plate (41), the rocker (24) is poked to swing back and forth through the rack (23), the striking plate (26) at one end of the rocker (24) strikes the shell (1), and water attached to the inner wall of the shell (1) is vibrated to be in contact with the water absorption sleeve (10) and absorbed by the water absorption sleeve (10);
step five: the driving motor on one side of the shell (1) is started to drive the second threaded rod (13) and the third threaded rod (16) to rotate, and the water absorption sleeve (10) is pushed out in a sliding mode to dry moisture outside the shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210475809.4A CN114709745B (en) | 2022-04-29 | 2022-04-29 | Pressure relief structure and pressure relief method for safety explosion prevention of inflatable cabinet |
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| CN202210475809.4A CN114709745B (en) | 2022-04-29 | 2022-04-29 | Pressure relief structure and pressure relief method for safety explosion prevention of inflatable cabinet |
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| CN114709745B CN114709745B (en) | 2022-10-21 |
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| CN114709745B (en) | 2022-10-21 |
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