CN116565746A - Explosion-proof structure and explosion-proof system of explosion-proof control cabinet - Google Patents

Explosion-proof structure and explosion-proof system of explosion-proof control cabinet Download PDF

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Publication number
CN116565746A
CN116565746A CN202310435101.0A CN202310435101A CN116565746A CN 116565746 A CN116565746 A CN 116565746A CN 202310435101 A CN202310435101 A CN 202310435101A CN 116565746 A CN116565746 A CN 116565746A
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CN
China
Prior art keywords
explosion
proof
heat
control cabinet
cavity
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310435101.0A
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Chinese (zh)
Inventor
贾永民
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bochuan Electric Co ltd
Original Assignee
Bochuan Electric Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bochuan Electric Co ltd filed Critical Bochuan Electric Co ltd
Priority to CN202310435101.0A priority Critical patent/CN116565746A/en
Publication of CN116565746A publication Critical patent/CN116565746A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
    • G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
    • 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
    • H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
    • 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
    • H02B1/46—Boxes; Parts thereof or accessories therefor
    • 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
    • H02B1/46—Boxes; Parts thereof or accessories therefor
    • H02B1/48—Mounting of devices therein
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Casings For Electric Apparatus (AREA)

Abstract

The invention relates to an explosion-proof control cabinet, in particular to an explosion-proof structure and an explosion-proof system of the explosion-proof control cabinet, comprising an explosion-proof box body, wherein a working cavity is arranged in the explosion-proof box body, a heat-resistant partition plate is arranged in the working cavity, the working cavity is divided into a gas containing cavity and a mounting cavity by the heat-resistant partition plate, an explosion-proof device is arranged on the heat-resistant partition plate, and a sealing device is arranged in the mounting cavity. The invention can isolate the internal environment from the external environment by the impact force generated by explosion, thereby avoiding the explosion of internal components and parts to influence the external environment, improving the explosion-proof performance of the device, ensuring the service life of the explosion-proof control cabinet, synchronously driving the explosion-proof device to work, generating carbon dioxide gas with lower temperature and exchanging the carbon dioxide gas with lower temperature with the gas in the mounting chamber, avoiding the ignition and secondary explosion of the components and parts, and further eliminating the subsequent influence generated by the explosion.

Description

Explosion-proof structure and explosion-proof system of explosion-proof control cabinet
Technical Field
The invention relates to an explosion-proof control cabinet, in particular to an explosion-proof structure and an explosion-proof system of the explosion-proof control cabinet.
Background
The explosion-proof control cabinet is widely applied to the power distribution control of domestic electricity in residential buildings, schools, hospitals and the like due to good functions, and is often seen in factory buildings and workshops of enterprises, such as an illumination distribution box, a power distribution box and the like. The explosion-proof control cabinet is usually closed in design, a large number of electrical components are arranged in the explosion-proof control cabinet, and if the electrical components in the explosion-proof control cabinet have sudden conditions such as short circuit, the explosion-proof control cabinet can transmit energy generated by explosion to the outside, so that potential safety hazards are reduced.
Chinese patent publication No. CN110454597B discloses an explosion-proof discharge valve of explosion-proof control cabinet, which comprises a valve body, from top to bottom in proper order fixed connection first fixed plate, second fixed plate in the valve body, the center department of first fixed plate is equipped with the bell mouth, evenly is equipped with the through-hole on the second fixed plate, the first spring of the vertical setting of second fixed plate upside center department fixed connection, first spring upper end fixed connection end cap, the end cap with the corresponding setting of bell mouth. The invention has the advantages that: according to the explosion-proof exhaust valve of the explosion-proof control cabinet, which is provided by the invention, the explosion-proof control cabinet can be continuously ventilated, when explosion occurs in the explosion-proof control cabinet, the cross rod can be cut off by the cutter under the impact force of the explosion, and under the action of the elastic force of the first spring, the plug is lifted upwards to block the conical hole, so that the explosion energy in the explosion-proof control cabinet is prevented from being transmitted to the outside of the explosion-proof control cabinet.
However, the above scheme still has the following shortcomings, and this technical scheme structure is complicated and can only be after guaranteeing to explode in to explosion-proof control cabinet seal the energy transfer that prevents the explosion outside to the explosion-proof control cabinet, however this scheme does not further eliminate the danger that the explosion produced, still can fire and smoke after the device in the explosion-proof control cabinet explodes, and the sustained burning causes the damage to the explosion-proof control cabinet, probably can take place secondary explosion and further aggravate the damage to the explosion-proof control cabinet even, probably makes the energy transfer of explosion outside the explosion-proof control cabinet.
Disclosure of Invention
The technical scheme is as follows: in order to solve the problems, the invention adopts the following technical scheme that the explosion-proof structure of the explosion-proof control cabinet comprises an explosion-proof box body, wherein a working cavity is arranged in the explosion-proof box body, a heat-resistant partition plate is arranged in the working cavity, the working cavity is divided into a gas-containing cavity and a mounting cavity by the heat-resistant partition plate, an explosion-proof device is arranged on the heat-resistant partition plate, and a sealing device is arranged in the mounting cavity.
The explosion-proof device comprises a limiting chute, a through hole, a blocking block, a connecting rod, a placing frame, a connecting spring, sodium bicarbonate powder, a connecting rope, a containing box and a hydrochloric acid solution, wherein the limiting chute is formed in one end, close to an installation cavity, of the heat blocking partition plate, two through holes are formed in the upper side and the lower side of the limiting chute respectively, the blocking block is tightly attached to the through hole, the blocking block is slidably arranged in the limiting chute, the connecting rod is connected between the blocking blocks, the placing frame is rotatably installed in the air containing cavity through a pin shaft, the placing frame is connected between the connecting spring and the heat blocking partition plate through the connecting spring, the connecting spring is used for maintaining the initial state of the placing frame to be in a horizontal state, the sodium bicarbonate powder is placed at the upper end of the placing frame, the connecting rope is installed at one end, far away from the heat blocking partition plate, the other end of the connecting rope penetrates through the heat blocking partition plate to be connected onto the connecting rod, the heat blocking partition plate is fixed with the containing box at one end, close to the air containing cavity, the hydrochloric acid solution is contained in the containing box, and the containing box is located below the placing frame.
Preferably, the downside be provided with the fan in the through-hole, the fan passes through unable adjustment base and installs on the heat blocking baffle, touch switch is installed to spacing spout lower extreme, the downside blocks the piece and compresses tightly on touch switch, touch switch and fan electric connection.
Preferably, the sealing plate is installed through detachable mode to the explosion-proof box, install the siren on the sealing plate, siren and touch switch electric connection, a plurality of air vents have been seted up on the explosion-proof box upper end outer wall, the air vent is linked together with the installation cavity, explosion-proof box upper end is fixed with the protection frame, be provided with the interval between protection frame upper end and the air vent.
Preferably, a pressure relief valve is arranged on one side, close to the installation cavity, of the upper side of the explosion-proof box body, and the pressure relief valve is communicated with the installation cavity.
Preferably, the two sides in the installation cavity are provided with a number of explosion-proof plates relatively, the number of explosion-proof plates close to one side of the heat-resistant partition plate is connected with the heat-resistant partition plate through two spring rods, the number of explosion-proof plates far away from one side of the heat-resistant partition plate is connected with the inner wall of the installation cavity through two spring rods, and a plurality of number one through grooves are formed in the number of explosion-proof plates.
Preferably, the sealing device comprises a sliding rod, a moving frame, an extension spring, a blocking block, a second explosion-proof plate, a second through groove, a mounting rod and a limiting component, wherein the inner wall of the upper side of the mounting cavity is relatively fixed with the sliding rod, the moving frame is installed in a sliding manner below the sliding rod, the extension spring is sleeved on the sliding rod, the upper end and the lower end of the extension spring are respectively connected with the mounting cavity and the moving frame, a plurality of blocking blocks are arranged at the upper end of the moving frame, the blocking blocks have the same shape and one-to-one correspondence with the vent holes, the second explosion-proof plate is arranged at the lower end of the moving frame, a plurality of second through grooves are arranged on the second explosion-proof plate, the mounting rod is fixed at one end of the moving frame close to the heat-resistant partition, the mounting rod is connected with the connecting rod, and the limiting component is arranged on the moving frame.
Preferably, the limiting component comprises a sliding rod, a mounting block, a limiting block, racks, incomplete gears, cutters and limiting ropes, wherein two oppositely arranged sliding rods are connected to the second explosion-proof plate in a sliding mode, the upper ends of the sliding rods penetrate through a moving frame in a sliding mode, the limiting blocks are fixedly connected to the lower sides of the sliding rods, the limiting blocks are tightly attached to the upper ends of the second explosion-proof plate and close to one sides of the heat-resistant partition plates, the racks are mounted on the sliding rods, the incomplete gears are rotatably mounted on the moving frame, the incomplete gears are meshed with the racks, the cutters are mounted on the incomplete gears, the limiting ropes are mounted between the inner walls of the front side and the rear side of the mounting cavity, and the limiting ropes are in a tensioning state and are tightly abutted to the moving frame.
Preferably, the left and right sides of movable rack upper end has offered the draw-in groove relatively, the square groove has been offered relatively to the upside of the left and right sides wall of installation cavity, has trapezoidal fixture block through screens spring coupling in the square groove, trapezoidal fixture block is corresponding the setting with the draw-in groove.
Preferably, the lower ends of the opposite sides of the trapezoid clamping blocks are inclined planes.
An explosion-proof system of an explosion-proof control cabinet comprises the explosion-proof structure.
(II) beneficial effects: 1. compared with the prior art, the explosion-proof structure and the explosion-proof system of the explosion-proof control cabinet have the advantages that the working cavity is divided into the gas containing cavity and the mounting cavity, so that the generated carbon dioxide gas with low temperature is convenient to cool the ignition and explosion positions, flame retardant treatment is further carried out, the internal environment is isolated from the external environment, meanwhile, the carbon dioxide gas is generated through the explosion-proof device in the gas containing cavity, and the carbon dioxide gas with low temperature is exchanged with the gas in the mounting cavity, so that the ignition and secondary explosion of components are avoided, and the subsequent influence caused by explosion is further eliminated.
2. When explosion happens, the impact force generated by the explosion pushes the mounting block to move upwards, so that the sliding rod and the rack move upwards, and the incomplete gear is pushed to rotate, so that the cutter is gradually contacted with the limiting rope and the limiting rope is cut off, so that the limiting rope loses the limit to the movable frame, the movable frame moves upwards under the elastic action of the extension spring, the blocking block is inserted into the vent hole, the external environment and the internal environment are blocked, the internal component explosion is avoided, the external environment is influenced, the explosion is buffered by the sealing device, the impact force generated by the explosion is effectively reduced, the internal environment and the external environment are isolated when the explosion happens through the sealing device, the explosion of the internal component is avoided, the external environment is influenced, the explosion-proof performance of the device is improved, the service life of the explosion-proof control cabinet is ensured, and meanwhile, the gas in the explosion-proof box is increased to further move the movable frame upwards, and the sealing effect of the blocking block is enhanced.
3. After the explosion is generated, the invention can isolate the internal environment from the external environment by the impact force generated by the explosion, synchronously drive the explosion-proof device to work, generate carbon dioxide gas with lower temperature and improve the utilization rate of the device.
4. When the touch switch is not contacted with the blocking block at the lower side, the alarm is started simultaneously when the fan is started, and the audible and visual alarm is used for warning the staff, so that the staff can know that an accident occurs in the explosion-proof box body in time and can handle the accident most timely.
Drawings
The invention will be further described with reference to the drawings and examples.
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic perspective view of the inside of the present invention.
Fig. 3 is a cross-sectional view of the present invention.
Fig. 4 is a schematic perspective view of a first view of the heat-resistant barrier and explosion-proof device of the present invention.
Fig. 5 is a schematic perspective view of a second view of the heat-resistant barrier and explosion-proof device of the present invention.
Fig. 6 is an enlarged view of a portion at X of fig. 3 in accordance with the present invention.
Fig. 7 is an enlarged view of a portion of the present invention at Y of fig. 3.
Fig. 8 is an enlarged view of a portion of the invention at Z of fig. 3.
Fig. 9 is an enlarged view of a portion of the present invention at T of fig. 3.
In the figure: 1. an explosion-proof box body; 11. a sealing plate; 12. an alarm; 13. a vent hole; 14. a protective frame; 15. a pressure release valve; 2. a heat-blocking separator; 3. a gas-containing chamber; 4. a mounting chamber; 41. a first explosion-proof plate; 42. a spring rod; 43. a first through groove; 5. an explosion-proof device; 51. limiting sliding grooves; 52. a through port; 521. a blower; 522. a fixed base; 523. a touch switch; 53. a blocking piece; 54. a connecting rod; 55. placing a frame; 56. a connecting spring; 57. sodium bicarbonate powder; 58. a connecting rope; 59. a holding box; 590. a hydrochloric acid solution; 6. a sealing device; 61. a slide bar; 62. a moving rack; 621. a clamping groove; 622. a clamping spring; 623. a shaped clamping block; 63. a tension spring; 64. a blocking block; 65. a second explosion-proof plate; 66. a second through groove; 67. a mounting rod; 68. a limit component; 681. a sliding rod; 682. a mounting block; 683. a limiting block; 684. a rack; 685. an incomplete gear; 686. a cutter; 687. and a limit rope.
Detailed Description
In order that the above objects, features and advantages of the invention will be more clearly understood, a further description of the invention will be rendered by reference to the appended drawings and examples. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as described herein, and therefore the present invention is not limited to the specific embodiments of the disclosure that follow.
Example 1
Referring to fig. 1-9, an explosion-proof structure of an explosion-proof control cabinet comprises an explosion-proof box body 1, wherein a working cavity is arranged in the explosion-proof box body 1, a heat-resistant partition board 2 is arranged in the working cavity, the working cavity is divided into a gas-containing cavity 3 and a mounting cavity 4 by the heat-resistant partition board 2, an explosion-proof device 5 is arranged on the heat-resistant partition board 2, and a sealing device 6 is arranged in the mounting cavity 4. The working cavity is divided into the gas-containing cavity 3 and the installation cavity 4 through the heat-resistant partition plate 2, components are installed in the installation cavity 4, the explosion is buffered through the sealing device 6, the impact force generated by the explosion is effectively lightened, the internal environment and the external environment can be isolated through the sealing device 6 when the explosion happens, the external environment is prevented from being influenced by the explosion of the components in the interior, the explosion-proof performance of the device is improved, and the service life of the explosion-proof control cabinet is ensured; when the internal environment is isolated from the external environment, carbon dioxide gas can be generated through the explosion-proof device 5 in the air-containing cavity 3, and the carbon dioxide gas with lower temperature is exchanged with the gas in the installation cavity 4, so that the fire and secondary explosion of components are avoided, and the subsequent influence caused by the explosion is further eliminated.
The explosion-proof device 5 comprises a limit chute 51, a through hole 52, a blocking block 53, a connecting rod 54, a placement frame 55, a connecting spring 56, sodium bicarbonate powder 57, a connecting rope 58, a holding box 59 and hydrochloric acid solution 590, wherein the limit chute 51 is arranged at one end of the heat-blocking partition board 2, which is close to the installation cavity 4, two through holes 52 are respectively arranged at the upper side and the lower side in the limit chute 51, the blocking block 53 is tightly attached to the through hole 52, the blocking block 53 is slidably arranged in the limit chute 51, the connecting rod 54 is connected between the blocking blocks 53, the placement frame 55 is rotatably arranged in the air-containing cavity 3 through a pin shaft, the placement frame 55 is connected with the heat-blocking partition board 2 through the connecting spring 56, the connecting spring 56 is used for maintaining the initial state of the placement frame 55 in a horizontal state, the sodium bicarbonate powder 57 is placed at the upper end of the placement frame 55, the connecting rope 58 is arranged at one end of the lower end of the placement frame 55, the connecting rope 58 has certain elasticity, the other end of the connecting rope 58 penetrates through the heat-blocking partition board 2 and is connected to the connecting rod 54, one end of the heat-blocking partition board 2, which is close to the air-containing cavity 3, the holding box 59 is fixedly arranged at one end of the holding box 59, 590, the hydrochloric acid solution is placed in the 590, and the hydrochloric acid solution is placed at the lower end of the placement frame 55 and the hydrochloric acid solution is in a reaction rate of the placement frame 55 and can be controlled by the sodium bicarbonate powder; a fan 521 is arranged in the lower side through hole 52, the fan 521 is arranged on the heat-resistant partition board 2 through a fixed base 522, a touch switch 523 is arranged at the lower end of the limit chute 51, the lower side blocking block 53 is pressed on the touch switch 523, and the touch switch 523 is electrically connected with the fan 521; the touch switch 523 is a prior art, and will not be described in detail herein.
Specifically, before explosion occurs, components in the installation chamber 4 may generate smoke or fire, thereby causing an increase in air temperature in the installation chamber 4; when explosion occurs, the impact force generated by the explosion drives the sealing device 6 to move, so that the connecting rod 54 moves upwards, the blocking block 53 moves upwards along with the connecting rod, the air accommodating chamber 3 and the mounting chamber 4 are communicated through the through hole 52, meanwhile, the connecting rod 54 moves upwards, so that the connecting rope 58 is pulled, the placing frame 55 is inclined, sodium bicarbonate powder 57 falls out of the placing frame 55 and falls into the containing box 59 to be contacted with the hydrochloric acid solution 590, the hydrochloric acid solution 590 reacts with the sodium bicarbonate powder 57 and generates a large amount of carbon dioxide gas, and the carbon dioxide gas has higher density than air, so that the carbon dioxide gas moves downwards to be contacted with the through hole 52 at the lower side; when the connecting rod 54 moves upwards, the blocking block 53 at the lower side is separated from the touch switch 523, so that the fan 521 is started, carbon dioxide gas with lower temperature generated in the air containing cavity 3 is blown into the installation cavity 4, the fire or explosion in the installation cavity 4 is cooled, and meanwhile, the carbon dioxide concentration in the installation cavity 4 can be improved, and continuous fire and secondary explosion are avoided.
The explosion-proof box body 1 is provided with a sealing plate 11 in a detachable mode, an alarm 12 is arranged on the sealing plate 11, the alarm 12 is electrically connected with a touch switch 523, a plurality of vent holes 13 are formed in the outer wall of the upper end of the explosion-proof box body 1, the vent holes 13 are communicated with the mounting cavity 4, the heat exchange between components and the outside can be ensured to be carried out in normal operation through the vent holes 13, the heat accumulation is avoided, the upper end of the explosion-proof box body 1 is fixedly provided with a protection frame 14, a space is arranged between the upper end of the protection frame 14 and the vent holes 13, and dust and rainwater are prevented from falling into the mounting cavity 4 through the vent holes 13 by the protection frame 14; a pressure relief valve 15 is arranged on one side, close to the installation cavity 4, of the upper side of the explosion-proof box body 1, and the pressure relief valve 15 is communicated with the installation cavity 4; the arranged sealing plate 11 is convenient for overhauling and replacing components in the explosion-proof box body 1; when the touch switch 523 is not in contact with the lower blocking piece 53, the alarm 12 is started simultaneously with the fan 521, and the staff is warned by the audible and visual alarm, so that the staff can know that an accident occurs in the explosion-proof box 1 in time; when the pressure in the explosion-proof box body 1 is overlarge, the pressure is reduced by releasing the gas through the pressure release valve 15 when the gas in the installation cavity 4 is too much, so that the explosion-proof box body 1 is ensured not to deform or even crack.
Example 2
The two sides in the installation cavity 4 are oppositely provided with a first explosion-proof plate 41, the first explosion-proof plate 41 close to one side of the heat-resistant baffle plate 2 is connected with the heat-resistant baffle plate 2 through two spring rods 42, the first explosion-proof plate 41 far away from one side of the heat-resistant baffle plate 2 is connected with the inner wall of the installation cavity 4 through two spring rods 42, a plurality of first through grooves 43 are formed in the first explosion-proof plate 41, when explosion happens, impact force generated by the explosion pushes the first explosion-proof plate 41 to move, the impact force generated by the explosion is relieved through the spring rods 42, and carbon dioxide gas flowing out of the lower through holes 52 can be fully contacted with components through the first through grooves 43; in addition, a number of explosion-proof plates 41 and spring rods 42 may be installed on the inner walls of the front and rear sides of the installation chamber 4.
The sealing device 6 comprises a slide bar 61, a movable frame 62, an extension spring 63, a blocking block 64, a second explosion-proof plate 65, a second through groove 66, a mounting rod 67 and a limiting component 68, wherein the slide bar 61 is relatively fixed on the inner wall of the upper side of the mounting cavity 4, the movable frame 62 is arranged in a sliding manner under the slide bar 61, the extension spring 63 is sleeved on the slide bar 61, the upper end and the lower end of the extension spring 63 are respectively connected with the mounting cavity 4 and the movable frame 62, the upper end of the movable frame 62 is provided with a plurality of blocking blocks 64, the blocking blocks 64 are identical in shape and correspond to the vent holes 13 one by one, the lower end of the movable frame 62 is provided with the second explosion-proof plate 65, the second explosion-proof plate 65 is provided with a plurality of second through grooves 66, one end of the movable frame 62 close to the heat-proof baffle 2 is fixedly provided with the mounting rod 67, the mounting rod 67 is connected with the connecting rod 54, and the limiting component 68 is arranged on the movable frame 62; the first explosion-proof plate 41 and the second explosion-proof plate 65 constitute a mounting area for components.
The limiting component 68 comprises a sliding rod 681, a mounting block 682, a limiting block 683, a rack 684, an incomplete gear 685, a cutter 686 and a limiting rope 687, wherein two sliding rods 681 which are oppositely arranged are connected to the second explosion-proof plate 65 in a sliding manner, the upper end of the sliding rod 681 penetrates through the movable frame 62 in a sliding manner, the limiting block 683 is fixedly connected to the lower side of the sliding rod 681, the limiting block 683 is tightly attached to the upper end of the second explosion-proof plate 65, the initial position of the sliding rod 681 is guaranteed through the limiting block 683, the rack 684 is mounted on the sliding rod 681 close to one side of the heat-resisting partition plate 2, the incomplete gear 685 is rotatably mounted on the movable frame 62, the cutter 686 is mounted on the incomplete gear 685, the limiting rope 687 is mounted between the inner walls of the front side and the rear side in the mounting cavity 4, the limiting rope 687 is in a tensioning state, the limiting rope 687 abuts against the movable frame 62, and the position of the movable frame 62 is limited through the limiting rope 687.
Specifically, when an explosion occurs, the installation block 682 is pushed to move upwards by the impact force generated by the explosion, so that the sliding rod 681 and the rack 684 move upwards, thereby pushing the incomplete gear 685 to rotate, enabling the cutter 686 to gradually contact with the limiting rope 687 and cut off the limiting rope 687, enabling the limiting rope 687 to lose the limit of the movable frame 62, under the elastic action of the extension spring 63, the movable frame 62 moves upwards, so that the blocking block 64 is inserted into the vent hole 13, the external environment and the internal environment are blocked, the explosion of internal components is avoided, the external environment is influenced, the explosion-proof performance of the device is improved, the service life of the explosion-proof control cabinet is ensured, and meanwhile, the movable frame 62 moves upwards further due to the increase of gas in the explosion-proof box 1, and the sealing effect of the blocking block 64 is enhanced.
Clamping grooves 621 are formed in the left side and the right side of the upper end of the movable frame 62, square grooves are formed in the upper sides of the left side wall and the right side wall of the installation cavity 4, trapezoidal clamping blocks 623 are connected in the square grooves through clamping springs 622, and the trapezoidal clamping blocks 623 and the clamping grooves 621 are correspondingly arranged; the lower ends of the opposite sides of the trapezoid clamping blocks 623 are inclined planes, and when the movable frame 62 moves to the uppermost side, the clamping grooves 621 are clamped into the trapezoid clamping blocks 623 to limit the positions of the movable frame 62, so that the sealing effect is further ensured.
An explosion-proof system of an explosion-proof control cabinet comprises the explosion-proof structure.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.

Claims (10)

1. The utility model provides an explosion-proof structure of explosion-proof control cabinet, includes explosion-proof box (1), its characterized in that: the anti-explosion box comprises an anti-explosion box body (1), wherein a working cavity is formed in the anti-explosion box body (1), a heat-resistant partition board (2) is arranged in the working cavity, the working cavity is divided into an air accommodating cavity (3) and an installation cavity (4) by the heat-resistant partition board (2), an anti-explosion device (5) is arranged on the heat-resistant partition board (2), and a sealing device (6) is arranged in the installation cavity (4);
the explosion-proof device (5) comprises a limit chute (51), a through hole (52), a blocking block (53), a connecting rod (54), a placing frame (55), a connecting spring (56), sodium bicarbonate powder (57), a connecting rope (58), a containing box (59) and hydrochloric acid solution (590), wherein the limit chute (51) is arranged at one end, close to an installation cavity (4), of the heat-resistant partition plate (2), two through holes (52) are respectively arranged at the upper side and the lower side in the limit chute (51), the blocking block (53) is tightly attached to the through hole (52), the blocking block (53) is slidably arranged in the limit chute (51), the connecting rod (54) is connected between the blocking blocks (53), the placing frame (55) is rotatably arranged in the air-containing cavity (3) through a pin shaft, the placing frame (55) is connected with the heat-resistant partition plate (2) through the connecting spring (56), the initial state of the placing frame (55) is kept in a horizontal state, the upper end of the placing frame (55) is provided with the powder (57), the lower end of the placing frame (55) is provided with the connecting rod (58) which is far away from the heat-resistant partition plate (2), one end of the heat-resistant partition plate (2) close to the air accommodating cavity (3) is fixedly provided with a containing box (59), hydrochloric acid solution (590) is contained in the containing box (59), and the containing box (59) is positioned below the placing frame (55).
2. The explosion-proof structure of an explosion-proof control cabinet according to claim 1, characterized in that: the fan (521) is arranged in the through hole (52) at the lower side, the fan (521) is arranged on the heat-resistant partition board (2) through the fixing base (522), the touch switch (523) is arranged at the lower end of the limiting chute (51), the lower side blocking block (53) is tightly pressed on the touch switch (523), and the touch switch (523) is electrically connected with the fan (521).
3. The explosion-proof structure of an explosion-proof control cabinet according to claim 2, characterized in that: the explosion-proof box (1) is installed closing plate (11) through detachable mode, install siren (12) on closing plate (11), siren (12) and touch switch (523) electric connection, a plurality of air vents (13) have been seted up on explosion-proof box (1) upper end outer wall, air vent (13) are linked together with installation cavity (4), explosion-proof box (1) upper end is fixed with protection frame (14), be provided with the interval between protection frame (14) upper end and air vent (13).
4. The explosion-proof structure of an explosion-proof control cabinet according to claim 1, characterized in that: the explosion-proof box body (1) is provided with a pressure relief valve (15) on one side, close to the installation cavity (4), of the upper side, and the pressure relief valve (15) is communicated with the installation cavity (4).
5. The explosion-proof structure of an explosion-proof control cabinet according to claim 1, characterized in that: the anti-explosion device is characterized in that a first anti-explosion plate (41) is oppositely arranged on two sides in the installation cavity (4), the first anti-explosion plate (41) close to one side of the heat-resistant partition plate (2) is connected with the heat-resistant partition plate (2) through two spring rods (42), the first anti-explosion plate (41) far away from one side of the heat-resistant partition plate (2) is connected with the inner wall of the installation cavity (4) through two spring rods (42), and a plurality of first through grooves (43) are formed in the first anti-explosion plate (41).
6. An explosion-proof structure of an explosion-proof control cabinet according to claim 3, characterized in that: sealing device (6) are including slide bar (61), remove frame (62), extension spring (63), blocking piece (64), no. two explosion-proof plates (65), no. two logical grooves (66), installation pole (67) and spacing subassembly (68), installation cavity (4) upside inner wall relatively fixed has slide bar (61), slide bar (61) downside is installed and is removed frame (62), the cover is equipped with extension spring (63) on slide bar (61), the upper and lower both ends of extension spring (63) are connected with installation cavity (4) and removal frame (62) respectively, a plurality of blocking pieces (64) have been seted up to removal frame (62) upper end, blocking piece (64) are the same and one-to-one with air vent (13) shape, no. two explosion-proof plates (65) are installed to the lower extreme of removal frame (62), a plurality of No. two logical grooves (66) have been seted up on No. two explosion-proof plates (65), one end that removal frame (62) is close to block hot baffle (2) is fixed with installation pole (67), installation pole (67) are connected with spacing subassembly (68).
7. The explosion-proof structure of an explosion-proof control cabinet according to claim 6, wherein: limiting component (68) are including slide pole (681), installation piece (682), stopper (683), rack (684), incomplete gear (685), cutter (686) and spacing rope (687), sliding connection has two relative slide poles (681) that set up on explosion-proof plate (65) No. two, the upper end slip of slide pole (681) runs through movable frame (62), slide pole (681) downside fixedly connected with stopper (683), stopper (683) are hugged closely on explosion-proof plate (65) No. two upper ends, are close to and block heat baffle (2) one side install rack (684) on slide pole (681), rotate on movable frame (62) and install incomplete gear (685), install cutter (686) on incomplete gear (685), install spacing rope (687) between the inner wall around in installation cavity (4), spacing rope (687) are in tight state (687) and move on spacing rope (684).
8. The explosion-proof structure of an explosion-proof control cabinet according to claim 6, wherein: clamping grooves (621) are formed in the left side and the right side of the upper end of the movable frame (62) relatively, square grooves are formed in the upper sides of the left side wall and the right side wall of the installation cavity (4) relatively, trapezoidal clamping blocks (623) are connected in the square grooves through clamping springs (622), and the trapezoidal clamping blocks (623) and the clamping grooves (621) are correspondingly arranged.
9. The explosion-proof structure of an explosion-proof control cabinet according to claim 8, wherein: the lower ends of the opposite sides of the trapezoid clamping blocks (623) are inclined planes.
10. An explosion-proof system of explosion-proof control cabinet, its characterized in that: comprising an explosion-proof structure according to any one of claims 1 to 9.
CN202310435101.0A 2023-04-21 2023-04-21 Explosion-proof structure and explosion-proof system of explosion-proof control cabinet Pending CN116565746A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310435101.0A CN116565746A (en) 2023-04-21 2023-04-21 Explosion-proof structure and explosion-proof system of explosion-proof control cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310435101.0A CN116565746A (en) 2023-04-21 2023-04-21 Explosion-proof structure and explosion-proof system of explosion-proof control cabinet

Publications (1)

Publication Number Publication Date
CN116565746A true CN116565746A (en) 2023-08-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310435101.0A Pending CN116565746A (en) 2023-04-21 2023-04-21 Explosion-proof structure and explosion-proof system of explosion-proof control cabinet

Country Status (1)

Country Link
CN (1) CN116565746A (en)

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