An intrinsically safe operating box for coal engineering

Abstract

The present invention discloses an intrinsically safe operation box for coal engineering, which belongs to the field of intrinsically safe operation boxes. An intrinsically safe operation box for coal engineering comprises: an operation box body, and also comprises: a plurality of sealed wiring terminals, which are arranged on the upper side of the operation box body; an inspection door, which is arranged on the lower side of the operation box body; a plurality of first closing mechanisms, which are fixedly arranged in the operation box body at equal intervals, and the first closing mechanisms are arranged on the lower side of the operation box body; a plurality of second closing mechanisms, which are fixedly arranged in the operation box body at equal intervals, and the second closing mechanisms are arranged on the upper side of the operation box body; the present invention effectively prevents the high heat generated when the circuit is closed from being conducted to the outside and contacting with flammable gas, and effectively prevents the temperature of the first sealed tube from being too high, which can ensure that the temperature conducted to the outside is within a safe range, thereby effectively reducing its safety hazards.

Description

Technical Field

[0001] The present invention relates to the technical field of intrinsically safe operation boxes, and in particular to an intrinsically safe operation box for coal engineering. Background Art

[0002] In coal engineering, in order to carry out electrical control safely, an intrinsically safe operation box is required. The intrinsically safe operation box is also called an intrinsically safe operation box. The intrinsically safe operation box is mostly used in the coal industry. When mining in coal engineering, there are flammable gases in the mine, and electrical control is an indispensable equipment at present. When ordinary electrical control is operated in the mine, the circuit needs to be closed or disconnected. The sparks generated or the heat generated during normal equipment operation may cause gas explosion, which is extremely dangerous. Therefore, an intrinsically safe operation box is required to protect the electrical operating system so that the temperature transmitted to the outside world is not enough to ignite the gas in the mine.

[0003] At present, the intrinsically safe operation box uses ordinary air cooling to dissipate heat. If the circuit is disconnected or closed, the high-temperature gas will be instantly discharged outward along with the cooling system, which may cause the ignition of combustible gas. In addition, if a sealed method is adopted and no cooling system is used, the temperature inside the operation box may increase with the increase in frequency of use, which may cause damage to the internal circuit and circuit board, and thus may pose certain safety hazards. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an intrinsically safe operating box for coal engineering that can overcome the above problems or at least partially solve the above problems.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A kind of intrinsically safe operation box for coal engineering, comprising: an operation box body, and also comprising: a plurality of sealed wiring terminals, which are arranged on the upper side of the operation box body; an inspection door, which is arranged on the lower side of the operation box body; a plurality of first closing mechanisms, which are fixedly arranged in the operation box body at equal intervals, and the first closing mechanism is arranged on the lower side of the operation box body; a plurality of second closing mechanisms, which are fixed in the operation box body at equal intervals, and the second closing mechanism is arranged on the upper side of the operation box body; a plurality of first fixed platforms, which are fixed in the operation box body, and the first fixed platforms match the first closing mechanism; a plurality of second fixed platforms, which are fixed in the operation box body, and the second fixed platforms match the second closing mechanism; a first moving conductive head, which is arranged at the output end of the first closing mechanism; a second moving conductive head, which is arranged at the output end of the second closing mechanism; a first static conductive head, which is arranged on the first fixed platform; a second static conductive head, which is arranged on the second fixed platform, and the first moving conductive head is electrically connected to the second static conductive head; a first sealing tube, which is arranged on the outside of the first moving conductive head and the first static conductive head; a second sealing tube, which is arranged on the outside of the second moving conductive head and The outer side of the second static conductive head; the first thermal insulation tube, which is arranged between the first closing mechanism and the first fixed platform; the second thermal insulation tube, which is fixed between the second closing mechanism and the second fixed platform; the first heat dissipation plate, which is arranged on the first thermal insulation tube; the second heat dissipation plate, which is arranged on the second thermal insulation tube; the first temperature control component, which is arranged between the first thermal insulation tube and the first sealed tube, when the first dynamic conductive head and the first static conductive head are closed, the first temperature control component forms a negative pressure cavity between the first thermal insulation tube and the first sealed tube, and then the first temperature control component sprays cooling water onto the first sealed tube The liquid cools down the first sealed tube and absorbs the heat in the negative pressure cavity, and finally dissipates the heat of the coolant within the safe temperature range through the first heat sink; a second temperature control component is arranged between the second insulation tube and the second sealed tube. When the second dynamic conductive head is disconnected from the second static conductive head, the second temperature control component forms a negative pressure cavity between the second insulation tube and the second sealed tube, and then the second temperature control component sprays cooling liquid onto the second sealed tube to cool the second sealed tube and absorb the heat in the negative pressure cavity, and finally dissipates the heat of the coolant within the safe temperature range through the second heat sink.

[0007] In order to facilitate driving the first moving conductive head and the second moving conductive head to move, further, the output end of the first closing mechanism is fixedly connected to a first lifting plate, the first lifting plate is fixedly connected to a first connecting rod, the first moving conductive head is fixed on the first connecting rod, the output end of the second closing mechanism is fixedly connected to a second lifting plate, the second lifting plate is fixedly connected to a second connecting rod, the second moving conductive head is fixedly connected to the second connecting rod, the first connecting rod is sealingly and slidingly connected to the first sealing tube, and the second connecting rod is sealingly and slidingly connected to the second sealing tube.

[0008] To facilitate temperature control, preferably, the first temperature control component includes a first telescopic rod symmetrically fixed on the first lifting plate, a first fixing ring is fixedly connected between the first thermal insulation tube and the first sealing tube, the second temperature control component includes a second telescopic rod symmetrically fixed on the second lifting plate, a second fixing ring is fixedly connected between the second thermal insulation tube and the second sealing tube, and lifting rings are sealed and slidably arranged between the first thermal insulation tube and the first sealing tube and between the second thermal insulation tube and the second sealing tube, wherein the lifting ring located in the second thermal insulation tube is fixedly connected to the second telescopic rod, the lifting ring in the first thermal insulation tube is fixedly connected to the first telescopic rod, the lifting ring is fixedly connected to a connecting ring, and a spray assembly matching the connecting ring is arranged on the lower side of the lifting ring.

[0009] In order to facilitate the spraying of coolant, further, the spray assembly has multiple spray heads fixed on the lower side of the lifting ring, a hollow rod is sealingly and slidingly provided on the lifting ring, a plurality of circular holes are provided on the hollow rod, a spring is fixedly connected to the lower side of the hollow rod, the spring located in the first insulation tube is fixedly connected to the first telescopic rod, the bottom of the lifting ring located in the second insulation tube is fixedly connected to the limiting column, the spring located in the second insulation tube is fixedly connected to the limiting column, a first cooling chamber is provided between the lifting ring located in the first insulation tube and the first fixed ring, and a first storage chamber is provided between the lifting ring and the first fixed platform, a second cooling chamber is provided between the lifting ring located in the second insulation tube and the second fixed platform, and a second storage chamber is provided between the lifting ring and the second fixed ring, a first circulation pipe is provided between the first cooling chamber and the first storage chamber, a second circulation pipe is provided between the second cooling chamber and the second storage chamber, and a one-way valve and a pressure relief valve are provided in both the first circulation pipe and the second circulation pipe.

[0010] In order to prevent the temperature of the coolant in the first cooling chamber or the second cooling chamber from being too high, further, the lifting ring is provided with a plurality of injection heads connected with the connecting ring.

[0011] In order to facilitate rapid neutralization with the hot coolant, preferably, the injection head is arranged in a spiral shape.

[0012] In order to facilitate improving the heat dissipation efficiency of the first sealed tube and the second sealed tube, preferably, a first heat conducting plate is provided on the first sealed tube, and the first heat conducting plate matches the first heat dissipation plate, a second heat conducting plate is provided on the second sealed tube, and the second heat conducting plate matches the second heat dissipation plate, the spray head located in the first insulation tube matches the first heat conducting plate, and the spray head located in the second insulation tube matches the second heat conducting plate.

[0013] In order to prevent heat from overflowing, further, a first vacuum chamber is provided between the first fixing ring and the first closing mechanism, and a second vacuum chamber is provided between the second fixing ring and the second closing mechanism.

[0014] In order to facilitate the heat dissipation of the first heat sink and the second heat sink, further, a cooling circulation box is fixedly connected to the operating box body, the first heat sink and the second heat sink are both fitted with the cooling circulation box, heat dissipation areas are symmetrically arranged on both sides of the operating box body, a serpentine tube connected to the cooling circulation box is fixedly connected in the heat dissipation area, a miniature cooling circulation pump is fixedly connected to the operating box body, the input end of the miniature cooling circulation pump is connected to one of the serpentine tubes, and the other serpentine tube is connected to the output end of the miniature cooling circulation pump, and a plurality of cooling fins are fixedly connected to the serpentine tube.

[0015] In order to facilitate heat dissipation of the heat dissipation fins, preferably, fan blades are rotatably arranged in the heat dissipation area, a micromotor is fixedly connected to the operation box body, and the output end of the micromotor is sealed and rotatably connected to the operation box body, and the fan blades are fixedly connected to the output end of the micromotor.

[0016] Compared with the prior art, the present invention provides an intrinsically safe operation box for coal engineering, which has the following beneficial effects:

[0017] 1. The intrinsically safe operation box for coal engineering uses a controller to control the second closing mechanism and the second telescopic rod to start first, so that the second moving conductive head contacts the second static conductive head first, and then controls the first telescopic rod to lift upward, so that the first cooling chamber tends to be in a vacuum state, and the first closing mechanism pushes the first moving conductive head to contact the first static conductive head, and the vacuum degree in the first cooling chamber increases. The arc or spark generated during the contact between the first moving conductive head and the first static conductive head increases the temperature of the first sealed tube, and the heat of the first sealed tube is insulated by the first cooling chamber, thereby effectively preventing the high heat generated when the circuit is closed from being conducted to the outside and contacting the flammable gas, thereby effectively improving its safety.

[0018] 2. The intrinsically safe operation box for coal engineering sprays coolant downwards through a spray assembly to cool down the first sealed tube. At this time, the coolant that absorbs heat has a higher temperature and floats down to the upper side of the first fixed ring for storage, and the sprayed coolant moves downward in a mist form. As the amount of coolant increases, the temperature of the coolant in the first cooling chamber is neutralized. When the liquid level of the coolant reaches the first heat sink, the heat is dissipated to the outside through the first heat sink, effectively preventing the temperature of the first sealed tube from being too high and ensuring that the temperature conducted to the outside is within a safe range.

[0019] 3. The intrinsically safe operation box used in the coal project controls the closing and opening of the circuit through double contacts, effectively preventing circuit failure or equipment failure from causing high temperature accumulation in the same area due to the circuit being disconnected immediately after closing the circuit, thereby effectively reducing its safety hazards.

[0020] 4. The intrinsically safe operation box for coal engineering projects sprays water in the form of a thin water column through a spray head, and the sprayed water column is inclined. Multiple spray heads cooperate to rotate and mix the coolant in the first cooling chamber or the second cooling chamber, thereby effectively preventing the coolant temperature in the first cooling chamber or the second cooling chamber from being too high, and further effectively preventing the temperature conducted by the first heat sink and the second heat sink from being too high.

[0021] The parts not involved in the device are the same as the prior art or can be implemented by the prior art. The present invention effectively prevents the high heat generated when the circuit is closed from being conducted to the outside and contacting the flammable gas, and effectively prevents the temperature of the first sealed tube from being too high, which can ensure that the temperature conducted to the outside is within a safe range, thereby effectively reducing its safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a cross-sectional schematic diagram of the present invention;

[0024] Figure 3 It is a schematic diagram of the expanded structure of the present invention;

[0025] Figure 4 It is a schematic diagram of the expanded structure of the cooling circulation box and the serpentine pipe in the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of the first heat sink, the second heat sink, the first insulation tube, the second insulation tube, the first circulation tube and the second circulation tube in the present invention;

[0027] Figure 6 It is a cross-sectional schematic diagram of the first temperature control component and the second temperature control component in the present invention;

[0028] Figure 7 For the present invention Figure 6 The enlarged schematic diagram of point A in the middle;

[0029] Figure 8 is a cross-sectional schematic diagram of the second temperature control component in the present invention;

[0030] Fig. 9 is a cross-sectional schematic diagram of the first temperature control component in the present invention;

[0031] Fig.10It is a schematic diagram of the expanded structure of the first temperature control component, the second temperature control component, the first insulation tube and the second insulation tube in the present invention;

[0032] Fig.11 It is a schematic diagram of the structure of the spraying assembly in the present invention.

[0033] In the figure: 1. operating box body; 101. sealed terminal; 102. inspection door; 103. cooling circulation box; 104. heat dissipation area; 105. serpentine tube; 106. micro cooling circulation pump; 107. heat dissipation fins; 108. micro motor; 109. fan blades; 2. first closing mechanism; 201. first fixed platform; 202. first lifting plate; 203. first connecting rod; 204. first dynamic conductive head; 205. first static conductive head; 206. first sealed tube; 207. first heat conduction plate; 208. first insulation tube; 209. first heat dissipation plate; 210. first vacuum chamber; 211. first telescopic rod; 212. first fixed ring; 213. first cooling chamber; 214. first storage chamber; 215. The first circulation pipe; 216, the first heat dissipation sleeve; 3, the second closing mechanism; 301, the second fixed platform; 302, the second lifting plate; 303, the second connecting rod; 304, the second dynamic conductive head; 305, the second static conductive head; 306, the second sealing tube; 307, the second heat conduction plate; 308, the second insulation tube; 309, the second heat dissipation plate; 310, the second vacuum chamber; 311, the second telescopic rod; 312, the second fixed ring; 313, the second cooling chamber; 314, the second storage chamber; 315, the second circulation pipe; 316, the second heat dissipation sleeve; 4, the lifting ring; 401, the spray head; 402, the injection head; 403, the connecting ring; 404, the hollow rod; 405, the round hole; 406, the spring; 407, the limiting column. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] Example 1: Reference Figure 1-Figure 11, an intrinsically safe operation box for coal engineering, comprising: an operation box body 1, and also comprising: a plurality of sealed wiring terminals 101, arranged on the upper side of the operation box body 1; an inspection door 102, arranged on the lower side of the operation box body 1; a plurality of first closing mechanisms 2, fixedly arranged in the operation box body 1 at equal intervals, and the first closing mechanism 2 is arranged on the lower side of the operation box body 1; a plurality of second closing mechanisms 3, fixedly arranged in the operation box body 1 at equal intervals, and the second closing mechanism 3 is arranged on the upper side of the operation box body 1; a plurality of first fixing platforms 201, fixed in the operation box body 1, and the first fixing platforms 201 match the first closing mechanisms 2; a plurality of second fixing platforms 301, The first movable conductive head 204 is arranged at the output end of the first closing mechanism 2; the second movable conductive head 304 is arranged at the output end of the second closing mechanism 3; the first static conductive head 205 is arranged on the first fixed platform 201; the second static conductive head 305 is arranged on the second fixed platform 301, and the first movable conductive head 204 is electrically connected to the second static conductive head 305; the first sealing tube 206 is arranged on the outside of the first movable conductive head 204 and the first static conductive head 205; the second sealing tube 306 is arranged on the second movable conductive head 304 and the second static conductive head 305 5; a first insulation tube 208, arranged between the first closing mechanism 2 and the first fixing platform 201; a second insulation tube 308, fixed between the second closing mechanism 3 and the second fixing platform 301; a first heat sink 209, arranged on the first insulation tube 208; a second heat sink 309, arranged on the second insulation tube 308; a first temperature control component, arranged between the first insulation tube 208 and the first sealing tube 206, when the first moving conductive head 204 and the first static conductive head 205 are closed, the first temperature control component forms a negative pressure cavity between the first insulation tube 208 and the first sealing tube 206, and then the first temperature control component sprays the first sealing tube 206 The coolant cools down the first sealed tube 206 and absorbs the heat in the negative pressure cavity, and finally dissipates the heat of the coolant within the safe temperature range through the first heat sink 209; the second temperature control component is arranged between the second insulation tube 308 and the second sealed tube 306. When the second moving conductive head 304 and the second static conductive head 305 are disconnected, the second temperature control component forms a negative pressure cavity between the second insulation tube 308 and the second sealed tube 306, and then the second temperature control component sprays coolant onto the second sealed tube 306 to cool down the second sealed tube 306 and absorb the heat in the negative pressure cavity, and finally dissipates the heat of the coolant within the safe temperature range through the second heat sink 309.

[0036] The output end of the first closing mechanism 2 is fixedly connected to the first lifting plate 202, to which the first connecting rod 203 is fixedly connected, and the first moving conductive head 204 is fixed on the first connecting rod 203; the output end of the second closing mechanism 3 is fixedly connected to the second lifting plate 302, to which the second lifting plate 302 is fixedly connected to the second connecting rod 303, the second moving conductive head 304 is fixedly connected to the second connecting rod 303, the first connecting rod 203 is sealingly and slidingly connected to the first sealing tube 206, and the second connecting rod 303 is sealingly and slidingly connected to the second sealing tube 306.

[0037] The first temperature control component includes a first telescopic rod 211 symmetrically fixed on the first lifting plate 202, a first fixed ring 212 is fixedly connected between the first insulation tube 208 and the first sealing tube 206, the second temperature control component includes a second telescopic rod 311 symmetrically fixed on the second lifting plate 302, a second fixed ring 312 is fixedly connected between the second insulation tube 308 and the second sealing tube 306, and a lifting ring 4 is sealed and slidably arranged between the first insulation tube 208 and the first sealing tube 206 and between the second insulation tube 308 and the second sealing tube 306, wherein the lifting ring 4 located in the second insulation tube 308 is fixedly connected to the second telescopic rod 311, the lifting ring 4 in the first insulation tube 208 is fixedly connected to the first telescopic rod 211, the lifting ring 4 is fixedly connected to the connecting ring 403, and a spraying assembly matching the connecting ring 403 is arranged on the lower side of the lifting ring 4.

[0038] When a circuit is closed in a coal mine, the second moving conductive head 304 and the second static conductive head 305 are closed first, and then the first moving conductive head 204 and the first static conductive head 205 are closed. When a circuit is disconnected, the second moving conductive head 304 and the second static conductive head 305 are disconnected first, and then the first moving conductive head 204 and the first static conductive head 205 are disconnected.

[0039] When it is necessary to energize the mining equipment, a certain circuit is energized through the control button on the operation box body 1. At this time, after the button on the operation box body 1 is pressed, the controller receives the corresponding weak current signal. At this time, the controller controls the second closing mechanism 3 and the second telescopic rod 311 to start first, so that the second dynamic conductive head 304 contacts the second static conductive head 305 first, and then controls the first telescopic rod 211 to lift upward, so that the first cooling chamber 213 tends to be in a vacuum state. When the first telescopic rod 211 is fully extended, the controller controls the first closing mechanism 2 to open, and the first closing mechanism 2 pushes the first lifting plate 202 to move upward. The first lifting plate 202 drives the first dynamic conductive head 204 to contact the first static conductive head 205 through the first connecting rod 203. At the same time, the first lifting plate 202 drives the first telescopic rod 211 to move upward, so that the vacuum degree in the first cooling chamber 213 increases. The arc or spark generated during the contact process increases the temperature of the first sealed tube 206, and the heat of the first sealed tube 206 is insulated by the first cooling chamber 213, thereby effectively preventing the high heat generated when the circuit is closed from being conducted to the outside and contacting the flammable gas, thereby effectively improving its safety. When the first telescopic rod 211 drives the lifting ring 4 to move to the set position, the cooling liquid is sprayed downward by the spray assembly to cool the first sealed tube 206. At this time, the temperature of the cooling liquid that absorbs heat is relatively high, and it floats downward to the upper side of the first fixed ring 212 for storage, and the sprayed cooling liquid moves downward in the form of mist. As the amount of cooling liquid increases, the temperature of the cooling liquid in the first cooling chamber 213 is neutralized. When the liquid level of the cooling liquid reaches the first heat sink 209, the heat is dissipated to the outside through the first heat sink 209, effectively preventing the temperature of the first sealed tube 206 from being too high, and ensuring that the temperature conducted to the outside is within a safe range.

[0040] When it is necessary to cut off the power supply to the mining equipment, the controller first controls the second telescopic rod 311 to contract, so that the second cooling chamber 313 tends to a vacuum state, and then controls the second closing mechanism 3 to drive the second connecting rod 303 to retract, so that the second moving conductive head 304 is away from the second static conductive head 305. At this time, the vacuum degree of the second cooling chamber 313 increases, and the second moving conductive head 304 is away from the second static conductive head 305. The heat generated by the arc is isolated by the second cooling chamber 313, and then the second sealed tube 306 is cooled by spraying coolant by the above-mentioned spraying assembly, thereby effectively preventing the second sealed tube 306 from being overheated, and the coolant temperature reaches a set value and then dissipates heat through the second heat conducting plate 307, so that it can be dissipated within a safe range, thereby effectively reducing its safety hazards. When the second moving conductive head 304 is completely separated from the second static conductive head 305, the controller controls the first telescopic rod 211 and the first closing mechanism 2 to open, so that the first moving conductive head 204 is separated from the first static conductive head 205, so as to close the circuit again.

[0041] By controlling the closing and opening of the circuit with double contacts, it is effectively prevented that the circuit failure or equipment failure will be immediately disconnected after the circuit is closed, causing high temperature to accumulate in the same area, thereby effectively reducing its safety hazards.

[0042] It should be noted that a controller is provided in the operation box body 1 .

[0043] Example 2: Reference Figure 1-Figure 11 , an intrinsically safe operation box for coal engineering, which is basically the same as Example 1, and further, a plurality of spray heads 401 of the spray assembly are fixed on the lower side of the lifting ring 4, a hollow rod 404 is provided on the lifting ring 4 for sealing and sliding, a plurality of round holes 405 are provided on the hollow rod 404, a spring 406 is fixedly connected to the lower side of the hollow rod 404, the spring 406 located in the first insulation tube 208 is fixedly connected to the first telescopic rod 211, a limiting column 407 is fixedly connected to the bottom of the lifting ring 4 located in the second insulation tube 308, the spring 406 located in the second insulation tube 308 is fixedly connected to the limiting column 407, and the spring 406 located in the first insulation tube 208 is fixedly connected to the limiting column 407. A first cooling chamber 213 is provided between the lifting ring 4 and the first fixed ring 212, and a first storage chamber 214 is provided between the lifting ring 4 and the first fixed platform 201, a second cooling chamber 313 is provided between the lifting ring 4 located in the second insulation tube 308 and the second fixed platform 301, and a second storage chamber 314 is provided between the lifting ring 4 and the second fixed ring 312, a first circulation pipe 215 is provided between the first cooling chamber 213 and the first storage chamber 214, a second circulation pipe 315 is provided between the second cooling chamber 313 and the second storage chamber 314, and a one-way valve and a pressure relief valve are provided in both the first circulation pipe 215 and the second circulation pipe 315.

[0044] When the lifting ring 4 located in the first insulation tube 208 rises to the hollow rod 404 and contacts the first fixed platform 201, it is pressed to slide into the connecting ring 403. At this time, the coolant in the first storage chamber 214 enters the spray head 401 through the circular hole 405 and the connecting ring 403 in turn, and the coolant is sprayed downward in an atomized state through the spray head 401. The sprayed coolant absorbs the heat at the first sealed tube 206 to prevent the internal heat of the first sealed tube 206 from being too high, and the atomized coolant moves downward. The atomized cooling acts as a mobile heat-conducting medium in the first cooling chamber 213, so that part of the heat can be transferred to the first heat sink 209, and part of the heat of the coolant is dissipated, thereby effectively improving its heat dissipation efficiency, and the fast-flowing atomized coolant can effectively prevent the temperature of the first heat sink 209 The pressure inside the first cooling chamber 213 is too high, thereby effectively reducing its potential safety hazard. When the first moving conductive head 204 and the first static conductive head 205 in the first insulation tube 208 are disconnected, the controller first controls the first closing mechanism 2 to drive the first lifting plate 202 to move downward. When the first lifting plate 202 is fully reset, the controller controls the first telescopic rod 211 to move downward. At this time, the lifting ring 4 moves downward to increase the pressure inside the first cooling chamber 213. When the pressure inside the first cooling chamber 213 reaches the threshold value of the pressure relief valve close to one side of the first cooling chamber 213, the coolant in the first cooling chamber 213 enters the first circulation pipe 215, and the coolant in the first circulation pipe 215 enters the first storage chamber 214 for storage. The coolant in the first storage chamber 214 is circulated and replaced in time, which is convenient for temperature control operation when the switch is closed next time, thereby effectively improving its safety.

[0045] When the lifting ring 4 located in the second insulation tube 308 moves to the hollow rod 404 and contacts the second fixed ring 312 and then slides into the connecting ring 403, the hollow rod 404 is the same as the above principle, and the second sealing tube 306 is cooled. When it is necessary to control the second moving conductive head 304 to contact the second static conductive head 305, the second closing mechanism 3 first controls the second lifting plate 302 to move downward, and then controls the second telescopic rod 311 to extend, and squeezes the coolant in the second cooling chamber 313 into the second circulation pipe 315. The cooled coolant in the second circulation pipe 315 enters the second storage chamber 314, which is convenient for the next disconnection operation. Its specific working principle is the same as the above working method.

[0046] Example 3: Reference Figure 1-Figure 11 , an intrinsically safe operating box for coal engineering, is basically the same as Example 1, and further, a plurality of injection heads 402 connected to a connecting ring 403 are arranged on the lifting ring 4.

[0047] The spray head 402 is arranged in a spiral shape.

[0048] After the coolant enters the connecting ring 403 through the circular hole 405, part of the coolant is sprayed out through the spray head 402 in the form of a thin water column, and the sprayed water column is inclined. Multiple spray heads 402 cooperate to rotate and mix the coolant in the first cooling chamber 213 or the second cooling chamber 313, thereby effectively preventing the coolant in the first cooling chamber 213 or the second cooling chamber 313 from being too hot, thereby effectively preventing the temperature conducted by the first heat sink 209 and the second heat sink 309 from being too high.

[0049] Example 4: Reference Figure 1-Figure 11 , an intrinsically safe operation box for coal engineering, which is basically the same as Example 1, and further, a first heat conducting plate 207 is arranged on the first sealed tube 206, and the first heat conducting plate 207 matches the first heat dissipation plate 209, a second heat conducting plate 307 is arranged on the second sealed tube 306, and the second heat conducting plate 307 matches the second heat dissipation plate 309, a spray head 401 located in the first insulation tube 208 matches the first heat conducting plate 207, and a spray head 401 located in the second insulation tube 308 matches the second heat conducting plate 307.

[0050] The heat of the first sealed tube 206 is quickly absorbed by the first heat conducting plate 207, and the coolant sprayed from the spray head 401 directly contacts the first heat conducting plate 207 in all aspects to absorb the heat of the first heat conducting plate 207. The heat of the second sealed tube 306 is quickly absorbed by the second heat conducting plate 307, and the coolant sprayed from the spray head 401 contacts the second heat conducting plate 307 in all aspects to absorb the heat of the second heat conducting plate 307, thereby effectively improving the cooling efficiency of the first sealed tube 206 and the second sealed tube 306, thereby effectively preventing the first sealed tube 206 and the second sealed tube 306 from being in a high temperature state for a long time and causing circuit damage.

[0051] Example 5: Reference Figure 1-Figure 11 , an intrinsically safe operating box for coal engineering, is basically the same as Example 1, and further, a first vacuum chamber 210 is arranged between the first fixing ring 212 and the first closing mechanism 2, and a second vacuum chamber 310 is arranged between the second fixing ring 312 and the second closing mechanism 3.

[0052] A cooling circulation box 103 is fixedly connected inside the operating box body 1, the first heat sink 209 and the second heat sink 309 are both in contact with the cooling circulation box 103, heat dissipation areas 104 are symmetrically arranged on both sides of the operating box body 1, a serpentine tube 105 connected to the cooling circulation box 103 is fixedly connected inside the heat dissipation area 104, a micro cooling circulation pump 106 is fixedly connected inside the operating box body 1, the input end of the micro cooling circulation pump 106 is connected to one of the serpentine tubes 105, and the other serpentine tube 105 is connected to the output end of the micro cooling circulation pump 106, and a plurality of heat dissipation fins 107 are fixedly connected to the serpentine tube 105.

[0053] A fan blade 109 is rotatably provided in the heat dissipation area 104 , a micro motor 108 is fixedly connected in the operation box body 1 , and the output end of the micro motor 108 is sealed and rotatably connected to the operation box body 1 , and the fan blade 109 is fixedly connected to the output end of the micro motor 108 .

[0054] The first vacuum chamber 210 and the second vacuum chamber 310 can effectively prevent heat from overflowing, so that heat can be directed to dissipate heat through the first heat conducting plate 207 or the second heat conducting plate 307 .

[0055] When the operating box body 1, the first heat sink 209 and the second heat sink 309 are dissipating heat, the micro cooling circulation pump 106 is turned on. The micro cooling circulation pump 106 circulates and cools the coolant in the cooling circulation box 103 through two serpentine tubes 105. Finally, the heat in the coolant is dissipated outward through the cooling fins 107, and the fan blades 109 are driven by the micro motor 108 to blow air toward the cooling fins 107, thereby effectively improving the heat dissipation effect of the coolant in the cooling circulation box 103, and then effectively improving the heat dissipation efficiency of the first heat sink 209 and the second heat sink 309.

[0056] The first heat sink 209, the second heat sink 309, the first heat conducting plate 207 and the second heat conducting plate 307 are all made of graphene materials with high thermal conductivity. When a circuit is closed or disconnected, the heat conducted into the cooling circulation box 103 through the first heat sink 209 or the second heat sink 309 can also be reversely absorbed by other first heat sinks 209 or second heat sinks 309, thereby effectively preventing the temperature of the heat sink fins 107 from being too high, thereby effectively reducing its safety hazards.

[0057] Example 6: Reference Figure 1-Figure 11 , an intrinsically safe operation box for coal engineering, is basically the same as Example 1, and further, the first circulation pipe 215 and the second circulation pipe 315 are both arranged in the cooling circulation box 103, and the first circulation pipe 215 and the second circulation pipe 315 are arranged alternately, the first circulation pipe 215 is fixedly connected to the first heat dissipation sleeve 216, and the second circulation pipe 315 is provided with a second heat dissipation sleeve 316.

[0058] The first heat dissipation plates 209 and the second heat dissipation plates 309 are arranged alternately.

[0059] By staggering the first circulation tube 215 and the second circulation tube 315, it is possible to effectively prevent heat accumulation caused by opening a certain circuit while closing another circuit, so that the temperature of the heat sink 107 is always within a safe range, thereby effectively reducing its safety hazards.

[0060] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An intrinsically safe operation box for coal engineering, comprising: The operation box body (1) is characterized by further comprising: A plurality of sealed connection terminals (101) are arranged on the upper side of the operation box body (1); An inspection door (102) is arranged on the lower side of the operation box body (1); A plurality of first closing mechanisms (2) are fixedly arranged at equal intervals in the operation box body (1), and the first closing mechanisms (2) are arranged on the lower side of the operation box body (1); A plurality of second closing mechanisms (3) are fixed at equal intervals in the operation box body (1), and the second closing mechanisms (3) are arranged on the upper side of the operation box body (1); A plurality of first fixing platforms (201) are fixed in the operation box body (1), and the first fixing platforms (201) match the first closing mechanism (2), and the first fixing platforms (201) are arranged above the first closing mechanism (2); A plurality of second fixing platforms (301) fixed in the operation box body (1), wherein the second fixing platforms (301) match the second closing mechanism (3), and the second fixing platforms (301) are arranged below the second closing mechanism (3); A first dynamic conductive head (204) is arranged at an output end of the first closing mechanism (2); A second dynamic conductive head (304) is arranged at an output end of the second closing mechanism (3); A first static contact head (205) is arranged on the first fixing platform (201); A second static conductive head (305) is arranged on the second fixed platform (301), and the first dynamic conductive head (204) is electrically connected to the second static conductive head (305); A first sealing tube (206) is arranged outside the first moving conductive head (204) and the first static conductive head (205); A second sealing tube (306) is arranged outside the second moving conductive head (304) and the second static conductive head (305); A first temperature-insulating tube (208) disposed between the first closing mechanism (2) and the first fixing platform (201); A second temperature-insulating tube (308) fixed between the second closing mechanism (3) and the second fixing platform (301); A first heat dissipation plate (209) is arranged on the first thermal insulation tube (208); A second heat dissipation plate (309) is arranged on the second thermal insulation tube (308); A first temperature control component is arranged between the first thermal insulation tube (208) and the first sealed tube (206); when the first moving conductive head (204) and the first static conductive head (205) are closed, the first temperature control component forms a negative pressure cavity between the first thermal insulation tube (208) and the first sealed tube (206); then the first temperature control component sprays cooling liquid onto the first sealed tube (206) to cool the first sealed tube (206) and absorb heat in the negative pressure cavity; finally, the heat of the cooling liquid within a safe temperature range is dissipated through the first heat sink (209); a second temperature control component, arranged between the second thermal insulation tube (308) and the second sealed tube (306); when the second moving conductive head (304) is disconnected from the second static conductive head (305), the second temperature control component forms a negative pressure cavity between the second thermal insulation tube (308) and the second sealed tube (306); then the second temperature control component sprays cooling liquid onto the second sealed tube (306) to cool the second sealed tube (306) and absorb heat in the negative pressure cavity; and finally, the heat of the cooling liquid within a safe temperature range is dissipated through the second heat sink (309); The output end of the first closing mechanism (2) is fixedly connected to a first lifting plate (202), the first lifting plate (202) is fixedly connected to a first connecting rod (203), the first moving conductive head (204) is fixed to the first connecting rod (203), the output end of the second closing mechanism (3) is fixedly connected to a second lifting plate (302), the second lifting plate (302) is fixedly connected to a second connecting rod (303), the second moving conductive head (304) is fixedly connected to the second connecting rod (303), the first connecting rod (203) is sealingly and slidably connected to a first sealing tube (206), and the second connecting rod (303) is sealingly and slidably connected to a second sealing tube (306); The first temperature control component comprises a first telescopic rod (211) symmetrically fixed on the first lifting plate (202), a first fixing ring (212) fixedly connected between the first thermal insulation tube (208) and the first sealing tube (206), the second temperature control component comprises a second telescopic rod (311) symmetrically fixed on the second lifting plate (302), a second fixing ring (312) fixedly connected between the second thermal insulation tube (308) and the second sealing tube (306), the first thermal insulation tube (208) and the first sealing tube A lifting ring (4) is sealed and slidably arranged between the second thermal insulation tube (206) and between the second thermal insulation tube (308) and the second sealing tube (306), wherein the lifting ring (4) located in the second thermal insulation tube (308) is fixedly connected to the second telescopic rod (311), and the lifting ring (4) in the first thermal insulation tube (208) is fixedly connected to the first telescopic rod (211), and the lifting ring (4) is fixedly connected to a connecting ring (403), and a spraying assembly matching the connecting ring (403) is arranged on the lower side of the lifting ring (4); The spray assembly comprises a plurality of spray heads (401) fixed to the lower side of the lifting ring (4); a hollow rod (404) is sealingly and slidably provided on the lifting ring (4); a plurality of round holes (405) are provided on the hollow rod (404); a spring (406) is fixedly connected to the lower side of the hollow rod (404); the spring (406) located in the first thermal insulation tube (208) is fixedly connected to the first telescopic rod (211); a limiting column (407) is fixedly connected to the bottom of the lifting ring (4) located in the second thermal insulation tube (308); the spring (406) located in the second thermal insulation tube (308) is fixedly connected to the limiting column (407); the lifting ring (4) located in the first thermal insulation tube (208) is fixedly connected to the first fixed ring (212) A first cooling chamber (213) is arranged between the lifting ring (4) and the first fixed platform (201), a first storage chamber (214) is arranged between the lifting ring (4) and the first fixed platform (201), a second cooling chamber (313) is arranged between the lifting ring (4) located in the second thermal insulation tube (308) and the second fixed platform (301), and a second storage chamber (314) is arranged between the lifting ring (4) and the second fixed ring (312), a first circulation pipe (215) is arranged between the first cooling chamber (213) and the first storage chamber (214), a second circulation pipe (315) is arranged between the second cooling chamber (313) and the second storage chamber (314), and a one-way valve and a pressure relief valve are arranged in both the first circulation pipe (215) and the second circulation pipe (315).

2. The intrinsically safe operation box for coal engineering according to claim 1, characterized in that: The lifting ring (4) is provided with a plurality of injection heads (402) which are connected to the connecting ring (403).

3. The intrinsically safe operation box for coal engineering according to claim 2, characterized in that: The injection head (402) is arranged in a spiral shape.

4. The intrinsically safe operation box for coal engineering according to claim 1, characterized in that: A first heat conducting plate (207) is arranged on the first sealed tube (206), and the first heat conducting plate (207) matches the first heat dissipation plate (209); a second heat conducting plate (307) is arranged on the second sealed tube (306), and the second heat conducting plate (307) matches the second heat dissipation plate (309); a spray head (401) located in the first thermal insulation tube (208) matches the first heat conducting plate (207), and a spray head (401) located in the second thermal insulation tube (308) matches the second heat conducting plate (307).

5. The intrinsically safe operation box for coal engineering according to claim 1, characterized in that: A first vacuum chamber (210) is provided between the first fixing ring (212) and the first closing mechanism (2), and a second vacuum chamber (310) is provided between the second fixing ring (312) and the second closing mechanism (3).

6. The intrinsically safe operation box for coal engineering according to claim 1, characterized in that: A cooling circulation box (103) is fixedly connected to the operating box body (1), the first heat sink (209) and the second heat sink (309) are both fitted with the cooling circulation box (103), heat dissipation areas (104) are symmetrically arranged on both sides of the operating box body (1), a serpentine tube (105) connected to the cooling circulation box (103) is fixedly connected to the heat dissipation area (104), a micro cooling circulation pump (106) is fixedly connected to the operating box body (1), an input end of the micro cooling circulation pump (106) is connected to one of the serpentine tubes (105), and another serpentine tube (105) is connected to an output end of the micro cooling circulation pump (106), and a plurality of heat dissipation fins (107) are fixedly connected to the serpentine tube (105).

7. The intrinsically safe operation box for coal engineering according to claim 6, characterized in that: A fan blade (109) is rotatably provided in the heat dissipation area (104), a micromotor (108) is fixedly connected in the operation box body (1), and the output end of the micromotor (108) is sealed and rotatably connected to the operation box body (1), and the fan blade (109) is fixedly connected to the output end of the micromotor (108).

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