CN110474233B - Box type transformer with automatic alarm function - Google Patents
Box type transformer with automatic alarm function Download PDFInfo
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- CN110474233B CN110474233B CN201910867509.9A CN201910867509A CN110474233B CN 110474233 B CN110474233 B CN 110474233B CN 201910867509 A CN201910867509 A CN 201910867509A CN 110474233 B CN110474233 B CN 110474233B
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000004744 fabric Substances 0.000 claims abstract description 39
- 230000006870 function Effects 0.000 claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims description 42
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 40
- 238000001816 cooling Methods 0.000 claims description 38
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 20
- 239000001569 carbon dioxide Substances 0.000 claims description 20
- 229910052757 nitrogen Inorganic materials 0.000 claims description 19
- 230000029052 metamorphosis Effects 0.000 claims description 10
- 238000001704 evaporation Methods 0.000 claims description 9
- 230000008020 evaporation Effects 0.000 claims description 7
- 238000009835 boiling Methods 0.000 claims description 5
- 230000000007 visual effect Effects 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 4
- 229910052742 iron Inorganic materials 0.000 claims 2
- 230000005855 radiation Effects 0.000 claims 1
- 230000002265 prevention Effects 0.000 abstract description 5
- 230000002159 abnormal effect Effects 0.000 abstract description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 3
- 239000001301 oxygen Substances 0.000 abstract description 3
- 229910052760 oxygen Inorganic materials 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 229910001873 dinitrogen Inorganic materials 0.000 abstract description 2
- 238000002309 gasification Methods 0.000 abstract description 2
- 230000005294 ferromagnetic effect Effects 0.000 description 7
- 230000017525 heat dissipation Effects 0.000 description 7
- 238000007789 sealing Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000009466 transformation Effects 0.000 description 4
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 3
- 230000005672 electromagnetic field Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000005291 magnetic effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 241000489999 Streptanthus Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C2/00—Fire prevention or containment
- A62C2/06—Physical fire-barriers
- A62C2/10—Fire-proof curtains
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C2/00—Fire prevention or containment
- A62C2/06—Physical fire-barriers
- A62C2/24—Operating or controlling mechanisms
-
- 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
-
- 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
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Fire Alarms (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention discloses a box-type transformer with an automatic alarm function, which comprises a box body and a transformer part arranged in the box body, wherein the back of the transformer part is provided with a heat conducting plate in a contact manner, and one side of the heat conducting plate, which is far away from the transformer part, is fixedly connected with a plurality of radiating fins at equal intervals. Has the advantages that: set up temperature sensing mechanism of meeting an emergency, the heat-conducting plate, perpendicular heat conduction pole, under the heat conduction of horizontal heat conduction pole, after reaching the abnormal temperature of second memory stick, switch-on temperature switch, audible-visual annunciator, motor and time switch place circuit, audible-visual annunciator reports to the police, remind the staff in time to handle, motor drive lead screw drives straight shape fire prevention cloth and moves down, and with arc fire prevention cloth and the contact of box diapire, form the confined space of putting out a fire, avoid the air to supply, the nitrogen gas after the gasification gets into the space of putting out a fire through the fire extinguishing pipe, isolated oxygen, and then realize putting out a fire, avoid continuously taking place the conflagration, lead to the damage of transformer.
Description
Technical Field
The invention relates to the technical field of box-type transformers, in particular to a box-type transformer with an automatic alarm function.
Background
The box transformer is an abbreviation of a box-type substation and is also called a pre-installed substation or a pre-installed substation. The high-voltage switch equipment, the distribution transformer and the low-voltage distribution device are factory prefabricated indoor and outdoor compact distribution equipment which are integrated according to a certain wiring scheme, namely, the functions of transformer voltage reduction, low-voltage distribution and the like are organically combined together and are arranged in a steel structure box which is damp-proof, rust-proof, dust-proof, rat-proof, fireproof, anti-theft, heat-insulating, totally-closed and movable. The box-type transformer substation is suitable for mines, factory enterprises, oil-gas fields and wind power stations, replaces the original civil power distribution room and power distribution station, and becomes a novel complete set of power transformation and distribution device.
Because box-type substation among the prior art is at long-time working process, the heat dissipation is untimely, will lead to the heat siltation, and the function is single, and unable automatic alarm and processing conflagration can not in time put out a fire when leading to the conflagration to take place in the box-type substation, and staff's discovery such as passive can only put out a fire again to arouse conflagration on a larger scale, cause higher level electrical loop to break down, influence the resident power consumption, there is very big defect.
In order to solve the problems, a box type transformer with an automatic alarm function is provided.
Disclosure of Invention
The invention aims to solve the problems in the background art and provides a box type transformer with an automatic alarm function.
In order to achieve the purpose, the invention adopts the following technical scheme: a box-type transformer with an automatic alarm function comprises a box body and a transformer part arranged in the box body, wherein a heat conduction plate is installed on the back of the transformer part in a contact manner, a plurality of radiating fins are fixedly connected to one side of the heat conduction plate, away from the transformer part, in an equidistant manner, two cooling cavities are formed in the heat conduction plate, a connecting channel communicated with the two cooling cavities is formed in the heat conduction plate, a vertical heat conduction rod is fixedly connected to the middle of one side of the heat conduction plate, away from the transformer part, a horizontal heat conduction rod is fixedly connected to one end of the vertical heat conduction rod, a temperature sensing part of a temperature switch is contacted with the horizontal heat conduction rod, a carbon dioxide liquid tank and a liquid nitrogen tank are fixedly installed at the upper end of the box body and on one side of the heat conduction plate, away from the transformer part, a cooling pipe is communicated, a fire extinguishing pipe is communicated with a port of the liquid nitrogen tank, one end of the fire extinguishing pipe, which is far away from the liquid nitrogen tank, is exposed in the air, and a temperature sensing strain mechanism is arranged between the carbon dioxide liquid tank and the liquid nitrogen tank; vertical rods are fixedly connected to four corners in the box body, one side, close to each other, of each two adjacent vertical rods is provided with a mounting groove, a motor is fixedly mounted at the upper end of each mounting groove, an output shaft of the motor vertically faces downwards and is fixedly connected with a lead screw, the lead screw is arranged in the mounting groove, a ball nut is in threaded connection with the outer wall of the lead screw, each two corresponding and adjacent ball nuts are fixedly connected with straight fireproof cloth together, each two straight fireproof cloths located on the same vertical rod are fixedly connected with arc fireproof cloth together, and a fixing part is arranged on the inner wall of the box body and in the middle of each straight fireproof cloth; one side fixedly connected with temperature switch that perpendicular heat conduction pole was kept away from to horizontal heat conduction pole, fixed mounting has audible-visual annunciator on the outer wall of box, temperature switch, audible-visual annunciator, motor are common to be connected in series the time switch.
In the above box-type transformer with an automatic alarm function, the temperature sensing strain mechanism includes a first ball valve and a second ball valve which are respectively mounted on the cooling pipe and the fire extinguishing pipe, and the valve rods of the first ball valve and the second ball valve are oppositely arranged, two ends of the horizontal heat conducting rod are respectively and fixedly connected with a first memory rod and a second memory rod, one ends of the first memory rod and the second memory rod, which are far away from the horizontal heat conducting rod, are respectively and fixedly connected with the valve rod of the first ball valve and the valve rod of the second ball valve, the metamorphosis temperature of the first memory rod is lower than that of the second memory rod, and the first memory rod and the second memory rod are of rod-shaped structures at normal temperature and are of twist-flower shape at metamorphosis temperature.
In the box-type transformer with the automatic alarm function, the temperature sensing strain mechanism comprises two cut-off valves respectively arranged on the cooling pipe and the fire extinguishing pipe, self-resetting valve rods are respectively arranged in the two cut-off valves, the valve rods of the two cut-off valves are fixedly connected with an upper connecting plate which is vertically upward, piston cylinders are arranged at two ends of the horizontal heat conducting rod, piston plates are hermetically and slidably connected in the two piston cylinders, two ends of the horizontal heat conducting rod respectively penetrate through the two piston cylinders in a sealing way, one end of each of the two piston plates far away from each other is fixedly connected with a piston rod, one end of the piston rod, which is far away from the piston plate, penetrates through the piston cylinder and is fixedly connected with the upper connecting plate close to the piston cylinder, a sealing space is formed between the horizontal heat conducting rod and the piston plate by the piston cylinder, and the sealed space is filled with an evaporation liquid, and the boiling point of the evaporation liquid close to the carbon dioxide liquid tank is smaller than that of the evaporation liquid close to the liquid nitrogen tank.
In foretell box becomes with automatic alarm function, the mounting includes the magnetite of fixed connection on the inner wall of box upper end, the lower extreme of straight shape fire prevention cloth and fixedly connected with ferromagnetic piece on the corresponding position of magnetite, the magnetite is inhaled with the ferromagnetic piece mutually and is connected.
In the above box-type transformer with an automatic alarm function, a shielding cover is fixedly connected to the inner wall of the box body and the outer side of the magnet.
In foretell box formula that has automatic alarm function becomes, the bottom intercommunication of cooling chamber has external pipe, the one end that the cooling chamber was kept away from to external pipe extends to the box bottom and extends to the external world, install the check valve on the external pipe.
In the box type transformer with the automatic alarm function, the widths of the straight fireproof cloth and the arc fireproof cloth are larger than the height of the box body.
Compared with the prior art, this box becomes with automatic alarm function's advantage lies in:
1. the temperature sensing strain mechanism is arranged, and under the heat conduction of the heat conduction plate, the vertical heat conduction rod and the horizontal heat conduction rod, the valve rod of the first ball valve is driven to rotate until the abnormal temperature of the first memory rod is reached, so that gasified carbon dioxide flows into the cooling cavity, the heat conduction plate and the like are cooled, heat accumulation is avoided, and the possibility of fire disaster is reduced;
2. set up temperature sensing mechanism of meeting an emergency, the heat-conducting plate, perpendicular heat conduction pole, under the heat conduction of horizontal heat conduction pole, after reaching the abnormal temperature of second memory stick, switch-on temperature switch, audible-visual annunciator, motor and time switch place circuit, audible-visual annunciator reports to the police, remind the staff in time to handle, motor drive lead screw drives straight shape fire prevention cloth and moves down, and with arc fire prevention cloth and the contact of box diapire, form the confined space of putting out a fire, avoid the air to supply, the nitrogen gas after the gasification gets into the space of putting out a fire through the fire extinguishing pipe, isolated oxygen, and then realize putting out a fire, avoid continuously taking place the conflagration, lead to the damage of transformer.
Drawings
FIG. 1 is a perspective view of a box-type variable embodiment 1 with an automatic alarm function according to the present invention;
FIG. 2 is an enlarged schematic view of part A of FIG. 1;
FIG. 3 is an enlarged view of the portion B in FIG. 1;
fig. 4 is a schematic structural diagram of a top view of a box-type variable embodiment 2 with an automatic alarm function according to the present invention;
fig. 5 is an enlarged schematic structural view of a portion C in fig. 4.
In the figure: the device comprises a box body 1, a power transformation device 2, a heat conduction plate 3, a cooling cavity 4, a connecting channel 5, heat dissipation fins 6, a vertical heat conduction rod 7, a horizontal heat conduction rod 8, a piston rod 9, a carbon dioxide liquid tank 10, a liquid nitrogen tank 11, a cooling pipe 12, a first ball valve 13, a fire extinguishing pipe 14, a second ball valve 15, a first memory rod 16, a second memory rod 17, a temperature switch 18, an audible and visual alarm 19, a magnet 20, a ferromagnetic block 21, a shielding cover 22, a vertical rod 23, a ball nut 24, a mounting groove 25, a motor 26, an arc fireproof cloth 27, a straight fireproof cloth 28, a piston cylinder 29, a piston plate 30, a cut-off valve 31 and a connecting plate 32.
Detailed Description
The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.
Example 1
Referring to fig. 1-3, a box-type transformer with an automatic alarm function comprises a box body 1 and a transformer part 2 arranged in the box body 1, wherein the back of the transformer part 2 is provided with a heat conduction plate 3 in a contact manner, one side of the heat conduction plate 3 far away from the transformer part 2 is fixedly connected with a plurality of heat dissipation fins 6 at equal intervals, the heat dissipation fins 6 facilitate the ordinary heat dissipation work, the heat conduction plate 3 is internally provided with two cooling cavities 4, the heat conduction plate 3 is internally provided with a connecting channel 5 communicated with the two cooling cavities 4, the middle part of one side of the heat conduction plate 3 far away from the transformer part 2 is fixedly connected with a vertical heat conduction rod 7, one end of the vertical heat conduction rod 7 is fixedly connected with a horizontal heat conduction rod 8, the temperature sensing part of a temperature switch 18 is in contact with the horizontal heat conduction rod 8, the upper end of the box body 1 and, a port of the carbon dioxide liquid tank 10 is communicated with a cooling pipe 12, one end of the cooling pipe 12, which is far away from the carbon dioxide liquid tank 10, is communicated with the cooling cavity 4, a port of the liquid nitrogen tank 11 is communicated with a fire extinguishing pipe 14, one end of the fire extinguishing pipe 14, which is far away from the liquid nitrogen tank 11, is exposed in the air, and a temperature sensing strain mechanism is arranged between the carbon dioxide liquid tank 10 and the liquid nitrogen tank 11;
The temperature sensing strain mechanism comprises a first ball valve 13 and a second ball valve 15 which are respectively installed on a cooling pipe 12 and a fire extinguishing pipe 14, valve rods of the first ball valve 13 and the second ball valve 15 are oppositely arranged, two ends of a horizontal heat conducting rod 8 are respectively and fixedly connected with a first memory rod 16 and a second memory rod 17, one ends, far away from the horizontal heat conducting rod 8, of the first memory rod 16 and the second memory rod 17 are respectively and fixedly connected with the valve rods of the first ball valve 13 and the valve rod of the second ball valve 15, the metamorphosis temperature of the first memory rod 16 is lower than the metamorphosis temperature of the second memory rod 17, the first memory rod 16 and the second memory rod 17 are of rod-shaped structures at normal temperature and are in a twist shape at the metamorphosis temperature, and the metamorphosis temperatures of the first memory rod 16 and the second memory rod 17 can be manufactured according to actual needs.
More specifically, the fixing member includes a magnet 20 fixedly connected to the inner wall of the upper end of the box 1, a ferromagnetic block 21 fixedly connected to the lower end of the straight fireproof cloth 28 at a position corresponding to the magnet 20, the magnet 20 and the ferromagnetic block 21 are attracted to each other, and the straight fireproof cloth 28 is fixed by the magnetic attraction force generated by the magnet 20 and the ferromagnetic block 21.
Furthermore, a shielding cover 22 is fixedly connected to the inner wall of the box 1 and the outer side of the magnet 20, and the shielding cover 22 can shield the electromagnetic field generated by the magnet 20, so as to avoid the electromagnetic field from influencing the normal operation of the power converter 2.
Further, the bottom intercommunication of cooling chamber 4 has external pipe, and the one end of keeping away from cooling chamber 4 is taken over to external pipe extends to the bottom in the box 1 and extends to the external world, installs the check valve on the external pipe, avoids carbon dioxide gas can't be detained in cooling chamber 4, influences the explosion of normal heat dissipation or heat-conducting plate 3.
Further, the widths of the straight fire-proof cloth 28 and the arc-shaped fire-proof cloth 27 are larger than the height of the box body 1, and when the straight fire-proof cloth 28 and the arc-shaped fire-proof cloth 27 hang down, a closed fire-extinguishing space is formed with the inner bottom wall of the box body 1.
It should be noted that, conventional air cooling and water cooling equipment for heat dissipation is further provided inside the case 1 to cool the heat generated by the operation of the power converter 2, which is not shown in the drawings since it is not related to the present technical solution.
In this embodiment, in a normal state, the temperature switch 18, the audible and visual alarm 19, the motor 26 and the time switch are in an off state in a circuit, the ball nut 24 is located at the upper end of the screw rod, the straight fire-proof cloth 28 is fixed by the fixing piece, and the arc fire-proof cloth 27 is fixed at the upper end of the screw rod, so that the lower ends of the straight fire-proof cloth 28 and the arc fire-proof cloth 27 are not in contact with the inner bottom wall of the box body 1;
in the normal use process of the power transformation device 2, the generated heat is conducted to the heat conduction plate 3, the heat conduction plate 3 conducts the heat to the vertical heat conduction rod 7 and the horizontal heat conduction rod 8 and conducts the heat to the temperature switch 18, it needs to be explained here that the metamorphosis temperature of the second memory rod 17 is the same as the starting temperature of the temperature switch 18, when the cooling capacity of the cooling device is smaller than the heat generated by the power transformation device 2, until the metamorphosis temperature of the first memory rod 16 is reached, the first memory rod 16 is twisted into a twist shape and drives the valve rod of the first ball valve 13 to rotate, the high-pressure carbon dioxide liquid tank 10 is gasified and then enters one cooling cavity 4, as the gasified carbon dioxide liquid needs to absorb a large amount of heat after being gasified, the gasified carbon dioxide enters the other cooling cavity 4 through the connecting channel 5, so as to cool the heat conduction plate 3 and flows out through the external connecting pipe, the situation that the cooling cavity 4 is sealed and inflated and the pressure is too high to cause explosion is avoided, and it should be noted that in the upper cooling process, the heat conducting plate 3 cannot be instantaneously cooled to a very low temperature, so that the heat conducting plate cannot be liquefied with hot air in the box body 1, and the normal operation of the power converter part 2 cannot be influenced;
if the heat cannot be reduced after the cooling, or the carbon dioxide in the carbon dioxide liquid tank 10 is completely consumed, when a fire breaks out, the heat is conducted to the temperature switch 18 through the horizontal heat conducting rod 8, the temperature switch 18, the audible and visual alarm, the motor 26 and the time switch are connected in a circuit, the motor 26 drives the screw rod to rotate, the ball nut 24 cannot rotate along with the straight fire-proof cloth 28 under the position limitation of the straight fire-proof cloth 28 and the arc fire-proof cloth 27, but can drive the arc fire-proof cloth 27 to vertically downwards along the installation groove 25, in the process of downwards moving, the downward force of the straight fire-proof cloth 28 is gradually greater than the magnetic attraction force of the magnet 20 to the ferromagnetic block 21, so that the straight fire-proof cloth 28 can hang down in the box body 1, the straight fire-proof cloth 28 and the arc fire-proof cloth 27 form a sealed fire-extinguishing space with the inner bottom wall of the box body 1, thereby avoiding communication with the outside, it should be noted here that the time switch in the on circuit can set the on time of the motor 26, so as to avoid wasting electric power and smoldering, and the electric power is conducted to the second memory rod 17 through the horizontal heat conducting rod 8, the second memory rod 17 is twisted into a twist shape to drive the valve rod of the second ball valve 15 to rotate, the high-pressure liquid nitrogen in the liquid nitrogen tank 11 flows out through the fire extinguishing pipe 14 after being gasified, and when the oxygen in the fire extinguishing space is gradually consumed and is fully filled with nitrogen, no combustion medium exists, so that the fire extinguishing function is achieved.
Example 2
As shown in fig. 4 to 5, the present embodiment is different from embodiment 1 in that: the temperature sensing strain mechanism comprises cut-off valves 31 respectively arranged on the cooling pipe 12 and the fire extinguishing pipe 14, self-reset valve rods are respectively arranged in the two cut-off valves 31, namely the cut-off valves 31 can be automatically closed under the action of no external force, the valve rods of the two cut-off valves 31 are fixedly connected with vertically upward upper connecting plates 32, two ends of a horizontal heat conducting rod 8 are respectively provided with a piston cylinder 29, two piston plates 30 are respectively connected in the two piston cylinders 29 in a sealing and sliding manner, two ends of the horizontal heat conducting rod 8 respectively penetrate through the two piston cylinders 29 in a sealing manner, one ends of the two piston plates 30 far away from each other are respectively fixedly connected with a piston rod 9, one end of the piston rod 9 far away from the piston plate 30 penetrates through the piston cylinder 29 and is fixedly connected with the upper connecting plate 32 close to the piston cylinder 29, a sealing space is formed between the horizontal heat conducting rod 8 and the piston plates 30 by the piston cylinder 29, evaporation liquid is filled in the sealing space, the boiling point of, the boiling point of the evaporated liquid near the liquid nitrogen tank 11 is the same as the opening temperature set by the temperature switch 18.
The working principle of this embodiment is substantially the same as that of embodiment 1, except that the heat on the horizontal heat conducting rod 8 is conducted to the evaporating liquid, the evaporating liquid gradually receives the heat until reaching its boiling point, the sealing space inside the piston cylinder 29 gradually increases, and pushes the piston plate 30 to move in the direction away from the horizontal heat conducting rod 8, and further drives the valve rod of the shut-off valve 31 to move, so that the gasified carbon dioxide or nitrogen flows out to cool or extinguish a fire.
In summary, the above-mentioned principles are processes of continuously receiving heat, and the process of gradually reducing heat can be derived in a reverse manner, and therefore, the detailed description thereof is omitted.
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.
Claims (3)
1. The utility model provides a box becomes with automatic alarm function, includes box (1) and arranges switching device (2) in box (1), its characterized in that, heat-conducting plate (3) are installed in the back contact of switching device (2), a plurality of heat radiation fins (6) of one side equidistance fixedly connected with of switching device (2) are kept away from in heat-conducting plate (3), two cooling chamber (4) have been seted up in heat-conducting plate (3), connect the passageway (5) with two cooling chamber (4) intercommunication have been seted up in heat-conducting plate (3), one side middle part fixedly connected with perpendicular heat conduction pole (7) of switching device (2) are kept away from in heat-conducting plate (3), the one end fixedly connected with horizontal heat conduction pole (8) of perpendicular heat conduction pole (7), and the temperature sensing position and the horizontal heat conduction pole (8) of temperature switch (18) contact, the upper end of box (1) and keep away from one side fixedly connected with dioxide heat-insulating plate (3) of switching device The device comprises a carbon dioxide liquid tank (10) and a liquid nitrogen tank (11), wherein a port of the carbon dioxide liquid tank (10) is communicated with a cooling pipe (12), one end, far away from the carbon dioxide liquid tank (10), of the cooling pipe (12) is communicated with a cooling cavity (4), a port of the liquid nitrogen tank (11) is communicated with a fire extinguishing pipe (14), one end, far away from the liquid nitrogen tank (11), of the fire extinguishing pipe (14) is exposed in the air, and a temperature sensing strain mechanism is arranged between the carbon dioxide liquid tank (10) and the liquid nitrogen tank (11);
vertical rods (23) are fixedly connected to four corners in the box body (1), one side, close to each other, of each two adjacent vertical rods (23) is provided with a mounting groove (25), a motor (26) is fixedly mounted at the upper end of each mounting groove (25), an output shaft of each motor (26) vertically faces downwards and is fixedly connected with a lead screw, the lead screws are arranged in the mounting grooves (25), ball nuts (24) are connected to the outer walls of the lead screws in a threaded mode, each two corresponding and adjacent ball nuts (24) are fixedly connected with straight fire-proof cloth (28) together, each two straight fire-proof cloths (28) positioned on the same vertical rod (23) are fixedly connected with arc fire-proof cloth (27) together, and fixing parts are arranged on the inner wall of the box body (1) and in the middle of the straight fire-proof cloth (28); a temperature switch (18) is fixedly connected to one side, far away from the vertical heat conducting rod (7), of the horizontal heat conducting rod (8), an audible and visual alarm (19) is fixedly installed on the outer wall of the box body (1), and the temperature switch (18), the audible and visual alarm (19) and the motor (26) are connected in series with a time switch; the fixing piece comprises a magnet (20) fixedly connected to the inner wall of the upper end of the box body (1), the lower end of the straight fireproof cloth (28) is fixedly connected with an iron magnet block (21) at the corresponding position of the magnet (20), and the magnet (20) is in attraction connection with the iron magnet block (21); a shielding cover (22) is fixedly connected to the inner wall of the box body (1) and the outer side of the magnet (20); the bottom of the cooling cavity (4) is communicated with an external pipe, one end of the external pipe, which is far away from the cooling cavity (4), extends to the bottom in the box body (1) and extends to the outside, and a one-way valve is mounted on the external pipe; the widths of the straight fire-proof cloth (28) and the arc fire-proof cloth (27) are larger than the height of the box body (1).
2. The box type transformer with the automatic alarm function according to claim 1, wherein the temperature-sensing strain mechanism comprises a first ball valve (13) and a second ball valve (15) respectively mounted on the cooling pipe (12) and the fire extinguishing pipe (14), the valve stems of the first ball valve (13) and the second ball valve (15) are oppositely arranged, the two ends of the horizontal heat conducting rod (8) are respectively and fixedly connected with a first memory rod (16) and a second memory rod (17), the ends of the first memory rod (16) and the second memory rod (17) far away from the horizontal heat conducting rod (8) are respectively and fixedly connected with the valve stem of the first ball valve (13) and the valve stem of the second ball valve (15), the metamorphosis temperature of the first memory rod (16) is lower than that of the second memory rod (17), and the first memory rod (16) and the second memory rod (17) are rod-shaped structures at normal temperature, is in the shape of a twist at the metamorphosis temperature.
3. The box type transformer with the automatic alarm function according to claim 1, characterized in that the temperature sensing strain mechanism comprises two shut-off valves (31) respectively mounted on the cooling pipe (12) and the fire extinguishing pipe (14), two self-resetting valve rods are respectively arranged in the two shut-off valves (31), the valve rods of the two shut-off valves (31) are fixedly connected with an upper connecting plate (32) which is vertically upward, two ends of the horizontal heat conducting rod (8) are respectively provided with a piston cylinder (29), two piston plates (30) are respectively and slidably connected in the two piston cylinders (29), two ends of the horizontal heat conducting rod (8) are respectively and hermetically penetrated through the two piston cylinders (29), one end of the two piston plates (30) which is far away from each other is fixedly connected with a piston rod (9), one end of the piston rod (9) which is far away from the piston plate (30) is penetrated through the piston cylinder (29) and is fixedly connected with the upper connecting plate (32) which is close to the, the piston cylinder (29) forms a sealed space between the horizontal heat conducting rod (8) and the piston plate (30), the sealed space is filled with evaporation liquid, and the boiling point of the evaporation liquid close to the carbon dioxide liquid tank (10) is smaller than that of the evaporation liquid close to the liquid nitrogen tank (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN110917524A (en) * | 2019-12-11 | 2020-03-27 | 张敏 | Fire-fighting mechanism for residential building elevator well |
| CN110952900A (en) * | 2019-12-12 | 2020-04-03 | 陶波 | Fire-fighting passage fireproof door |
| CN111490470A (en) * | 2020-04-23 | 2020-08-04 | 俞国峰 | Intelligent power distribution cabinet for electric power sale |
| CN111755961B (en) * | 2020-06-17 | 2022-01-07 | 深圳市艾米克电气有限公司 | Fireproof low-voltage switch cabinet |
| CN112494845B (en) * | 2020-11-26 | 2021-09-14 | 德阳市泰山机电设备工程有限公司 | Electromechanical device with fire extinguishing function |
| CN112746761A (en) * | 2020-12-28 | 2021-05-04 | 刘明明 | Fireproof new energy automobile parking space for municipal construction |
| CN113763663B (en) * | 2021-07-05 | 2022-12-13 | 深圳市望硕科技有限公司 | Intelligent security alarm for smart park |
| CN114082124B (en) * | 2021-12-01 | 2022-11-11 | 广东锂华新能源科技有限公司 | A built-in fire-retardant mechanism for new energy automobile |
| CN114400428B (en) * | 2021-12-30 | 2023-03-17 | 苏州宝罗机械工程有限公司 | Full-automatic 5G filter cavity production device |
| CN114566925B (en) * | 2022-03-25 | 2024-01-30 | 山东威朗德电气技术服务有限公司 | Power supply box of gas fire-extinguishing controller |
| CN114677820B (en) * | 2022-04-25 | 2024-03-26 | 南京理工大学北方研究院 | Intelligent electric fire monitoring device based on Internet of things platform |
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