阅读说明：本技术 一种防爆配电柜及监控配电柜运行的方法 (Explosion-proof power distribution cabinet and method for monitoring operation of power distribution cabinet ) 是由 张睿 李肇琪 于 2021-05-19 设计创作，主要内容包括：本发明涉及一种防爆配电柜及监控配电柜运行的方法,包括配电柜以及均匀分布在配电柜侧壁的防爆装置,防爆装置包括左端开口的防爆箱,防爆箱内部设置有转轴,转轴上下对称设置有两个收卷轮,收卷轮上缠绕有拉绳,且转轴左侧设置有第一挡板,转轴右侧设置有第二挡板,两个收卷轮上的拉绳分别与第一挡板、第二挡板固定连接,第一挡板右侧中部固定有滑杆,滑杆上套接有拉簧,防爆箱靠近左端的弧形侧壁上均匀分布有气管；本发明监控配电柜内部的气体携带配电柜产生的热量,通过进气口之后从防爆箱左端开口排出,达到散热的效果；当监控配电柜内部由于异常工作发生爆炸时,配电柜内的气体被压入第一挡板和第二挡板的密闭空间内,减小爆炸的冲击。(The invention relates to an explosion-proof power distribution cabinet and a method for monitoring the operation of the power distribution cabinet, wherein the explosion-proof power distribution cabinet comprises a power distribution cabinet and explosion-proof devices uniformly distributed on the side wall of the power distribution cabinet, each explosion-proof device comprises an explosion-proof box with an opening at the left end, a rotating shaft is arranged in each explosion-proof box, two winding wheels are symmetrically arranged on the upper side and the lower side of each rotating shaft, pull ropes are wound on the winding wheels, a first baffle is arranged on the left side of each rotating shaft, a second baffle is arranged on the right side of each rotating shaft, the pull ropes on the two winding wheels are fixedly connected with the first baffle and the second baffle respectively, a sliding rod is fixed in the middle of the right side of the first baffle, a tension spring is sleeved on the sliding rod, and air pipes are uniformly distributed on the arc-shaped side wall of the explosion-proof box close to the left end; according to the invention, the gas in the power distribution cabinet is monitored to carry the heat generated by the power distribution cabinet, and the heat is discharged from the opening at the left end of the explosion-proof box after passing through the gas inlet, so that the heat dissipation effect is achieved; when the monitoring power distribution cabinet explodes due to abnormal work, gas in the power distribution cabinet is pressed into the closed space of the first baffle and the second baffle, and the impact of explosion is reduced.)

1. An explosion-proof power distribution cabinet and a method for monitoring the operation of the power distribution cabinet are characterized in that: the method comprises the following steps:

s1, monitoring the heat generated by the power distribution cabinet carried by the gas in the power distribution cabinet under normal conditions, blowing the second sealing gasket to elastically deform after passing through the gas inlet, so that the second sealing gasket is separated from the gas inlet, the gas in the power distribution cabinet conveniently enters the gas pipe and is discharged from the opening at the left end of the explosion-proof box, and the heat dissipation effect is achieved;

s2, when the monitoring power distribution cabinet explodes due to abnormal work, shock waves generated instantaneously when the explosion happens push a push plate, the push plate drives a first baffle plate to move leftwards, meanwhile, a tension spring pulls a second baffle plate to move rightwards, so that the space between the first baffle plate and the second baffle plate is enlarged, the first sealing gasket is tightly pressed on the first baffle plate due to external air pressure, air holes on the first baffle plate are sealed, external air cannot enter the sealed space between the first baffle plate and the second baffle plate, and the internal pressure of the space between the first baffle plate and the second baffle plate is smaller than the external atmospheric pressure,

s3, after the first baffle passes through the air pipe and the gas in the power distribution cabinet is monitored to pass through the air inlet, the second sealing gasket is blown to generate elastic deformation, so that the second sealing gasket is separated from the air inlet, and because the pressure intensity of the closed space between the first baffle and the second baffle is smaller than the external atmospheric pressure, the gas in the power distribution cabinet is passively and rapidly pressed into the closed space between the first baffle and the second baffle under the action of the atmospheric pressure, the air pressure in the power distribution cabinet is rapidly reduced, and the impact of explosion on the power distribution cabinet is reduced,

s4, after explosion happens, under the action of the return spring, the rotating shaft rotates to drive the winding wheel to wind the pull rope, the first baffle and the second baffle are pulled to be close to each other to reset, meanwhile, after air between the first baffle and the second baffle passes through the exhaust hole, the first sealing gasket is pushed to be elastically deformed, the first sealing gasket is separated from the first baffle 5, and then the air between the first baffle and the second baffle enters the explosion-proof box and is discharged from the opening at the left end of the explosion-proof box.

2. The explosion-proof power distribution cabinet and the method for monitoring the operation of the power distribution cabinet according to claim 1, wherein the explosion-proof power distribution cabinet comprises a power distribution cabinet and explosion-proof devices uniformly distributed on the side wall of the power distribution cabinet, each explosion-proof device comprises an explosion-proof box with an opening at the left end, one end of each explosion-proof box is fixed on the side wall of the power distribution cabinet, a rotating shaft is arranged in each explosion-proof box, the upper end and the lower end of each rotating shaft are respectively and rotatably connected with the upper side and the lower side of each explosion-proof box, two winding wheels are symmetrically arranged on the upper side and the lower side of each rotating shaft, pull ropes are wound on the winding wheels, a first baffle is arranged on the left side of each rotating shaft, a second baffle is arranged on the right side of each rotating shaft, the pull ropes on the two winding wheels are respectively and fixedly connected with the first baffle and the second baffle, the first baffle and the second baffle are both slidably sleeved in each explosion-proof box, a slide bar is fixed in the middle of the right side of the first baffle and sequentially passes through the second baffle and the side wall of each explosion-proof box, and the right end of the sliding rod is fixedly provided with a push plate, the sliding rod is sleeved with a tension spring, the left end of the tension spring is fixedly connected with the second baffle, and the right end of the tension spring is fixedly connected with the right side wall of the explosion-proof box.

3. The explosion-proof power distribution cabinet and the method for monitoring the operation of the power distribution cabinet according to claim 2, wherein the arc-shaped side wall of the explosion-proof box near the left end is uniformly distributed with air pipes, the end of the air pipe far away from the explosion-proof box is uniformly distributed with air inlets in a ring shape, a second sealing gasket is arranged inside the air pipe, and the middle part of the second sealing gasket is fixedly connected with the middle part of the end of the air pipe far away from the explosion-proof box.

4. The explosion-proof power distribution cabinet and the method for monitoring the operation of the power distribution cabinet according to claim 2, wherein air holes are uniformly distributed on the arc-shaped side wall of the explosion-proof box close to the right end.

5. The explosion-proof power distribution cabinet and the method for monitoring the operation of the power distribution cabinet according to claim 2, wherein vent holes are uniformly distributed in the first baffle in an annular manner, a first sealing gasket is arranged on the left side of the first baffle, and the middle part of the first baffle is fixedly connected with the first sealing gasket.

6. The explosion-proof power distribution cabinet and the method for monitoring the operation of the power distribution cabinet according to claim 2, wherein a sliding groove is formed in the sliding rod, and the rotating shaft penetrates through the sliding groove.

Technical Field

The invention belongs to the technical field of power distribution cabinet equipment, and particularly relates to an explosion-proof power distribution cabinet and a method for monitoring the operation of the power distribution cabinet.

Background

The power distribution cabinet box, the lighting power distribution cabinet and the metering cabinet box are power distribution system final-stage equipment, the power distribution cabinet is a general name of a motor control center, and the power distribution cabinet is used in occasions with dispersed loads and less loops; the anti-explosion power distribution cabinet distributes the electric energy of a certain circuit of the upper-level power distribution equipment to the nearby load, the equipment provides protection, monitoring and control for the load, wherein the anti-explosion power distribution cabinet is important power distribution equipment for preventing low-point explosion caused by sparks, electric arcs, high temperature and the like, and the anti-explosion power distribution cabinet is an indispensable power distribution facility in flammable and explosive places such as petrochemical industry and the like at present.

The switch board can produce a large amount of heats in the course of the work, and the high temperature can lead to switch board internal plant to burn out, therefore the switch board need have certain heat dissipation function, simultaneously, because switch board operational environment's the reason, the switch board explodes easily, damages equipment in order to prevent the shock wave that the switch board explosion produced. CN208490063U discloses an explosion-proof electrical cabinet with heat dissipation function, which realizes heat dissipation and protection buffering of a power distribution cabinet through a heat dissipation fan and a spring, but the heat dissipation effect of the electrical cabinet depends on the rotation of the heat dissipation fan, and the impact cannot be reduced rapidly when the electrical cabinet is subjected to severe impact; CN212485844U discloses a heat dissipation explosion-proof electric power cabinet, which is cooled by air through cold air and an exhaust fan, and detects smoke through a smoke detector to automatically cut off power to achieve the explosion-proof purpose, but can not adjust the internal air pressure of the electric power cabinet, and can not buffer and reduce pressure under huge pressure, and can not reduce impact.

Aiming at the defects of the prior art, further improvement is needed.

Disclosure of Invention

In view of the above, the present invention provides an explosion-proof power distribution cabinet and a method for monitoring operation of the power distribution cabinet, so as to solve the above problems.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows: an explosion-proof power distribution cabinet and a method for monitoring the operation of the power distribution cabinet comprise a power distribution cabinet and explosion-proof devices evenly distributed on the side wall of the power distribution cabinet, wherein each explosion-proof device comprises an explosion-proof box with an opening at the left end, one end of each explosion-proof box is fixed on the side wall of the power distribution cabinet, a rotating shaft is arranged in each explosion-proof box, the upper end and the lower end of each rotating shaft are respectively rotatably connected with the upper side and the lower side of each explosion-proof box, two winding wheels are symmetrically arranged on the upper side and the lower side of each rotating shaft, a pull rope is wound on each winding wheel, a first baffle is arranged on the left side of each rotating shaft, a second baffle is arranged on the right side of each rotating shaft, the pull ropes on the two winding wheels are respectively fixedly connected with the first baffle and the second baffle, a slide bar is fixed in the middle of the right side of each first baffle and the second baffle in a sliding manner, the slide bar sequentially passes through the side wall of the right end of each explosion-proof box, a push plate is fixed on the right end of the slide bar, a tension spring is sleeved on the slide bar, the left end of the tension spring is fixedly connected with the second baffle, the right end of the tension spring is fixedly connected with the right side wall of the explosion-proof box.

The explosion-proof case is close to evenly distributed on the arc lateral wall of left end and has the trachea, and the trachea is kept away from the one end annular evenly distributed of explosion-proof case and has the air inlet, and trachea inside is provided with the sealed pad of second, and the sealed middle part of filling up of second is kept away from the one end middle part fixed connection of explosion-proof case with the trachea.

Preferably, air holes are uniformly distributed on the arc-shaped side wall of the explosion-proof box close to the right end.

Preferably, the first baffle is provided with vent holes in an annular and uniform distribution manner, a first sealing gasket is arranged on the left side of the first baffle, and the middle part of the first baffle is fixedly connected with the first sealing gasket.

Preferably, the sliding rod is provided with a sliding groove, and the rotating shaft penetrates through the sliding groove.

The invention has the beneficial effects that: when the gas distribution cabinet is used, the gas in the power distribution cabinet is monitored to carry heat generated by the power distribution cabinet under normal conditions, and the second sealing gasket is blown to generate elastic deformation after passing through the gas inlet, so that the second sealing gasket is separated from the gas inlet, the gas in the power distribution cabinet conveniently enters the gas pipe and is discharged from the opening at the left end of the explosion-proof box, and the heat dissipation effect is achieved; when the inside of the monitoring power distribution cabinet explodes due to abnormal work, shock waves generated at the moment of explosion push the push plate to drive the first baffle plate to move leftwards, meanwhile, the tension spring pulls the second baffle plate to move rightwards, so that the space between the first baffle plate and the second baffle plate is increased, the first sealing gasket is tightly pressed on the first baffle plate due to the external air pressure to seal the air holes in the first baffle plate, external air cannot enter the sealed space between the first baffle plate and the second baffle plate, the pressure intensity of the sealed space between the first baffle plate and the second baffle plate is smaller than the external atmospheric pressure, and the air in the power distribution cabinet is passively and rapidly pressed into the sealed space between the first baffle plate and the second baffle plate under the action of the atmospheric pressure to rapidly reduce the air pressure in the power distribution cabinet and reduce the impact of the explosion on the power distribution cabinet; this device not only conveniently monitors the switch board heat dissipation, has explosion-proof function moreover.

Drawings

FIG. 1 is a diagram of a power distribution cabinet according to the present invention;

FIG. 2 is a view showing the construction of the explosion-proof apparatus of the present invention;

FIG. 3 is a partial enlarged view of the portion A in FIG. 2 according to the present invention.

Reference numbers in the figures: 1, a power distribution cabinet; 2, an explosion-proof box; 3, rotating a shaft; 4, winding a wheel; 5 a first baffle plate; 501 air exhaust holes; 6 a second baffle; 7 a first gasket; 8, a sliding rod; a 801 push plate; an 802 chute; 9 a tension spring; 10 air pipe; 1001 air inlet; 11 a second gasket.

Detailed Description

The invention is described in further detail below with reference to the following figures and detailed description:

as shown in figure 1, an explosion-proof power distribution cabinet and a method for monitoring operation of the power distribution cabinet comprise a power distribution cabinet 1 and explosion-proof devices evenly distributed on the side wall of the power distribution cabinet 1, as shown in figure 2, each explosion-proof device comprises an explosion-proof box 2 with an opening at the left end, one end of each explosion-proof box 2 is fixed on the side wall of the power distribution cabinet 1, a rotating shaft 3 is arranged inside each explosion-proof box 2, the upper end and the lower end of each rotating shaft 3 are respectively connected with the upper side and the lower side of each explosion-proof box 2 in a rotating mode, two winding wheels 4 are symmetrically arranged on the upper side and the lower side of each rotating shaft 3, pull ropes are wound on the winding wheels 4, a first baffle 5 is arranged on the left side of each rotating shaft 3, a second baffle 6 is arranged on the right side of each rotating shaft 3, the pull ropes on the two winding wheels 4 are respectively fixedly connected with the first baffle 5 and the second baffle 6, the first baffle 5 and the second baffle 6 are both slidably sleeved in the explosion-proof box 2, a slide bar 8 is fixed in the middle of the right side of the first baffle 5, and the slide bar 8 sequentially penetrates through the second baffle 6, The right side wall of the explosion-proof box 2 is provided with a push plate 801, the right end of the slide rod 8 is fixedly provided with a tension spring 9, the left end of the tension spring 9 is fixedly connected with the second baffle 6, and the right end of the tension spring 9 is fixedly connected with the right side wall of the explosion-proof box 2.

In this embodiment, evenly distributed has trachea 10 on the arc lateral wall that explosion-proof case 2 is close to the left end, as shown in fig. 3, and the one end annular evenly distributed that explosion-proof case 2 was kept away from to trachea 10 has air inlet 1001, and trachea 10 is inside to be provided with the sealed 11 of second, and the sealed 11 middle part of second is sealed to be kept away from explosion-proof case 2 with trachea 10 one end middle part fixed connection.

In this embodiment, the explosion-proof box 2 is close to evenly distributed and has the bleeder vent on the arc lateral wall of right-hand member.

In this embodiment, annular evenly distributed has the air vent on the first baffle 5, and is provided with first sealed 7 that fills up on the left of first baffle 5, and 5 middle parts of first baffle and first sealed 7 fixed connection that fill up.

In this embodiment, the sliding rod 8 is provided with a sliding slot 802, and the rotating shaft 3 passes through the sliding slot 802.

The working principle of the invention is as follows: when the gas distribution cabinet is used, the gas in the power distribution cabinet is monitored to carry heat generated by the power distribution cabinet under normal conditions, and after the gas passes through the gas inlet 1001, the second sealing gasket 11 is blown to generate elastic deformation, so that the second sealing gasket 11 is separated from the gas inlet 1001, the gas in the power distribution cabinet conveniently enters the gas pipe 10 and is discharged from the opening at the left end of the explosion-proof box 2, and the heat dissipation effect is achieved; when the monitoring power distribution cabinet explodes due to abnormal work, shock waves generated instantaneously when the explosion happens push the push plate 801, the push plate 801 drives the first baffle plate 5 to move leftwards, meanwhile, the tension spring 9 pulls the second baffle plate 6 to move rightwards, so that the space between the first baffle plate 5 and the second baffle plate 6 is enlarged, the first sealing gasket 7 is tightly pressed on the first baffle plate 5 due to external air pressure, the air holes on the first baffle plate 5 are sealed, external air cannot enter the sealed space between the first baffle plate 5 and the second baffle plate 6, the internal pressure of the space between the first baffle plate 5 and the second baffle plate 6 is smaller than the external atmospheric pressure, after the first baffle plate 5 passes through the air pipe 10, after the gas in the monitoring power distribution cabinet passes through the air inlet 1001, the second sealing gasket 11 is blown to generate elastic deformation, so that the second sealing gasket 11 is separated from the air inlet 1001, and the gas in the power distribution cabinet can conveniently enter the air pipe 10, then the gas enters the space between the first baffle 5 and the second baffle 6, in the process, because the pressure intensity of the closed space between the first baffle 5 and the second baffle 6 is less than the external atmospheric pressure, the gas in the power distribution cabinet is passively and rapidly pressed into the closed space between the first baffle 5 and the second baffle 6 under the action of the atmospheric pressure, the air pressure in the power distribution cabinet is rapidly reduced, the impact of explosion on the power distribution cabinet is reduced, and after the explosion occurs, under the action of the return spring, the rotating shaft 3 rotates to drive the winding wheel 4 to wind the pull rope by hand, the first baffle 5 and the second baffle 6 are pulled to be close to each other and reset, meanwhile, after the air between the first baffle 5 and the second baffle 6 passes through the exhaust hole 501, the first sealing gasket 7 is pushed to elastically deform, so that the first sealing gasket 7 is separated from the first baffle 5, and then the air between the first baffle 5 and the second baffle 6 enters the explosion-proof box 2 and is exhausted from the opening at the left end of the explosion-proof box 2.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.