CN112546493B - Fireproof alarm structure for cable trench of transformer substation - Google Patents
Fireproof alarm structure for cable trench of transformer substation Download PDFInfo
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- CN112546493B CN112546493B CN202011423656.6A CN202011423656A CN112546493B CN 112546493 B CN112546493 B CN 112546493B CN 202011423656 A CN202011423656 A CN 202011423656A CN 112546493 B CN112546493 B CN 112546493B
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- fixedly connected
- wall
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- trench
- fixed cylinder
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- 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
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/02—Permanently-installed equipment with containers for delivering the extinguishing substance
- A62C35/10—Containers destroyed or opened by flames or heat
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C99/00—Subject matter not provided for in other groups of this subclass
- A62C99/0009—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C99/00—Subject matter not provided for in other groups of this subclass
- A62C99/0009—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames
- A62C99/0018—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using gases or vapours that do not support combustion, e.g. steam, carbon dioxide
- A62C99/0027—Carbon dioxide extinguishers
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention discloses a fireproof alarm structure for a cable trench of a transformer substation, which comprises a trench body fixedly connected in the ground, wherein the upper end of the trench body is fixedly connected with a cover plate, the inner wall of the trench body is fixedly connected with a plurality of mounting plates, the bottom in the trench body is fixedly connected with a fixed cylinder, the upper end of the fixed cylinder is provided with an annular groove, the inner wall of the annular groove is hermetically and slidably connected with a circular ring, the upper end of the circular ring is fixedly connected with a rotating cylinder, the lower end of the trench body is provided with a heat absorption cavity, and the inner wall of the fixed cylinder is fixedly connected with a sealing plate. According to the invention, the impeller made of a magnetic material continuously sweeps under the magnetic ball through the rotation of the impeller, so that the magnetic ball moves up and down, the hydrochloric acid solution in the liquid storage tank intermittently flows out, the hydrochloric acid solution reacts with calcium carbonate powder to generate carbon dioxide, and the carbon dioxide is sprayed out through the arc-shaped air injection pipeline, so that the concentration of the carbon dioxide in the ditch body is increased, and the fire is extinguished in the ditch body.
Description
Technical Field
The invention relates to the technical field of cable ducts, in particular to a fireproof alarm structure for a cable duct of a transformer substation.
Background
The transformer substation is a place for converting voltage and current, receiving electric energy and distributing electric energy in an electric power system, and therefore a large number of cable ditches are arranged in the transformer substation and used for ensuring the safe burying and orderly arrangement of cables.
Because the environment that the cable pit was located is complicated, make its surface insulation layer easily age after the cable uses for a long time, and in the cable pit because the existence of moisture can make joint department short circuit, make the temperature in the cable pit rise fast, and then lead to the conflagration incident that takes place in the cable pit, present cable pit is only at the fire prevention function of its inside setting, do not set up the automatic fire extinguishing function, when making the conflagration take place, because the interior circuit of transformer substation is complicated, the intensity of a fire stretches very easily, and then can cause huge economic loss, influence the normal use of transformer substation.
Based on this, the invention provides a fireproof alarm structure for a cable trench of a transformer substation.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a fireproof alarm structure for a cable trench of a transformer substation.
In order to achieve the purpose, the invention adopts the following technical scheme:
a fireproof alarm structure for a cable trench of a transformer substation comprises a trench body fixedly connected in the ground, wherein the upper end of the trench body is fixedly connected with a cover plate, the inner wall of the trench body is fixedly connected with a plurality of mounting plates, the bottom in the trench body is fixedly connected with a fixed cylinder, the upper end of the fixed cylinder is provided with a ring groove, the inner wall of the ring groove is hermetically and slidably connected with a ring, the upper end of the ring groove is fixedly connected with a rotating cylinder, the lower end of the trench body is provided with a heat absorption cavity, the inner wall of the fixed cylinder is fixedly connected with a sealing plate, the lower end of the sealing plate is rotatably connected with a plurality of impellers through a rotating shaft, the inner wall of the heat absorption cavity is connected with the inner wall of the fixed cylinder through a one-way outlet pipe, the pipe orifice of the one-way outlet pipe is obliquely arranged towards the impeller direction, the bottom in the fixed cylinder is connected with the inner wall of the heat absorption cavity through a one-way outlet pipe, the upper end of the sealing plate is symmetrically and fixedly connected with a liquid storage tank through a support, and a fire extinguishing mechanism for extinguishing fire of the ditch body is arranged in the liquid storage tank.
Preferably, the mechanism of putting out a fire includes the spring of fixed connection top in the liquid reserve tank, spring lower extreme fixedly connected with magnetic ball, one of them the impeller adopts the magnetic material who repels with the magnetic ball to make, the one-way liquid hole of going out of magnetic ball lower extreme complex is seted up to the liquid reserve tank lower extreme, seted up the annular chamber in the rotor, rotor inner wall passes through one-way fumarole and annular chamber inner wall connection, a plurality of arc jet-propelled pipelines have been seted up to annular chamber inner wall equipartition.
Preferably, an evaporation liquid is arranged in the heat absorption cavity, calcium carbonate powder is arranged in a sealed space formed by the upper end of the sealing plate and the rotating cylinder, and a hydrochloric acid solution is arranged in the liquid storage tank.
Preferably, a pressure release valve is installed in the one-way air outlet pipe, and a pressure release valve is installed in the one-way air injection hole.
Preferably, a plurality of one-way exhaust pipes are fixedly connected to the upper end of the cover plate, and a warning whistle is installed in the one-way exhaust pipes.
The invention has the following beneficial effects:
1. the heat absorption cavity is arranged, so that heat in the groove body can be absorbed, the temperature in the groove body is further reduced, and the cooling effect is good;
2. by arranging the impeller, the one-way air outlet pipe, the liquid storage tank, the spring and the magnetic ball, when a fire disaster occurs in the cable trench to ensure that the temperature in the heat absorption cavity is higher, the evaporation capacity of evaporation liquid in the heat absorption cavity is increased at the moment, and then the gaseous evaporation liquid in the heat absorption cavity is sprayed out through the one-way air outlet pipe, so that the impeller rotates under the impact force action of the gaseous evaporation liquid, the impeller made of a magnetic material continuously sweeps under the magnetic ball, the magnetic ball moves up and down under the repulsive force of the impeller and the elastic force of the spring, the hydrochloric acid solution in the liquid storage tank intermittently flows out, the hydrochloric acid solution and calcium carbonate powder react to generate carbon dioxide, and then the carbon dioxide enters the annular groove through the one-way air injection hole and is sprayed out through the arc-shaped air injection pipeline, so that the concentration of the carbon dioxide in the groove body is increased, and the fire is extinguished in the groove body;
3. because the arc-shaped air injection pipeline and the side wall of the rotary drum have certain inclination, the carbon dioxide gas can generate reaction force on the rotary drum when being sprayed out, and the rotary drum rotates, so that the area sprayed by the carbon dioxide can cover all areas in the ditch body, and the extinguishing of fire is accelerated;
4. through setting up one-way blast pipe and warning whistle, when carbon dioxide was discharged at a high speed, the internal pressure increase of ditch this moment, and then the internal gas of ditch is discharged through one-way blast pipe for the warning whistle sends out the police sound, so that reminds the staff in time to handle.
Drawings
Fig. 1 is a schematic structural diagram of a fire-proof alarm structure for a cable trench of a transformer substation according to the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
FIG. 3 is an enlarged view of the structure at B in FIG. 1;
fig. 4 is a schematic top view of a rotary drum in a fireproof alarm structure for a cable trench of a transformer substation according to the present invention.
In the figure: the whistle with the alarm sound comprises a ditch body 1, a cover plate 2, a mounting plate 3, a fixing barrel 4, an annular groove 5, a circular ring 6, a rotating barrel 7, a heat absorption cavity 8, a sealing plate 9, an impeller 10, a one-way air outlet pipe 11, a one-way liquid outlet pipe 12, a support 13, a liquid storage tank 14, a one-way liquid outlet hole 15, a spring 16, a magnetic ball 17, an annular cavity 18, a one-way air jet hole 19, an arc-shaped air jet pipeline 20, a one-way air exhaust pipe 21 and a whistle with the alarm sound 22.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.
Referring to fig. 1-4, a transformer substation's cable pit is with fire prevention alarm structure, including the ditch body 1 of fixed connection in the ground, ditch body 1 upper end fixedly connected with apron 2, ditch body 1 inner wall fixedly connected with a plurality of mounting panels 3, fixed cylinder 4 of bottom fixedly connected with in the ditch body 1, annular groove 5 has been seted up to fixed cylinder 4 upper end, annular groove 5 inner wall sealing sliding connection has a ring 6, 6 upper end fixedly connected with of ring rotate a section of thick bamboo 7, it needs to explain, it is connected with 4 upper end sealing rotation to rotate a section of thick bamboo 7 lower extreme and fixed cylinder.
Furthermore, the bottom is the toper form in the solid fixed cylinder 4, the outflow of the evaporating liquid of being convenient for more, and 11 mouths of pipe of one-way outlet duct set up with the slope of impeller 10 lateral wall simultaneously for can cause great impact force to impeller 10 when gaseous state evaporating liquid spouts, and then drive impeller 10 and rotate.
The upper end of the sealing plate 9 is fixedly connected with a liquid storage box 14 through a support, calcium carbonate powder is arranged in a sealing space formed in the upper end of the sealing plate 9 and the rotating cylinder 7, hydrochloric acid solution is arranged in the liquid storage box 14, and a fire extinguishing mechanism for extinguishing fire to the ditch body 1 is arranged in the liquid storage box 14.
The fire extinguishing mechanism comprises a spring 16 fixedly connected to the top in a liquid storage tank 14, a magnetic ball 17 is fixedly connected to the lower end of the spring 16, one impeller 10 is made of a magnetic material repellent to the magnetic ball 17, a one-way liquid outlet hole 15 matched with the lower end of the magnetic ball 17 is formed in the lower end of the liquid storage tank 14, furthermore, the one-way liquid outlet hole 15 only allows hydrochloric acid solution to flow out of the liquid storage tank 14, and an elastic membrane is fixedly connected to the upper portion of the inner wall of the liquid storage tank 14 through a through hole and used for balancing pressure change in the liquid storage tank 14 when the hydrochloric acid flows out.
An annular chamber 18 has been seted up in the section of thick bamboo 7 rotates, rotate a 7 inner wall through one- way fumarole 19 and 18 inner wall connections of annular chamber, install the relief valve in the one-way fumarole 19, a plurality of arc jet-propelled pipelines 20 have been seted up to 18 inner wall equipartitions of annular chamber, it is further, arc jet-propelled pipeline 20's flexure spun gas is certain angle with a 7 surface of rotation section of thick bamboo, then the reaction force to a rotation section of thick bamboo 7 when gaseous blowout makes a rotation section of thick bamboo 7 take place to rotate, make the area that carbon dioxide sprays increase, and then accelerate putting out of fire.
The upper end of the cover plate 2 is fixedly connected with a plurality of one-way exhaust pipes 21, and warning whistle 22 is arranged in the plurality of one-way exhaust pipes 21.
It should be noted that the inner wall of the fixed cylinder 4 is embedded with a permanent magnet, not shown in the figure, attracted to the impeller 10 made of magnetic material, so that when no fire breaks out in the trench body 1, the impeller 10 is close to the permanent magnet under the attraction of the permanent magnet, so that the impeller 10 is far away from the magnetic ball 17, thereby preventing the hydrochloric acid solution in the liquid storage tank 14 from flowing out.
According to the invention, when the temperature of fire disaster in the groove body 1 rises, the evaporation capacity of evaporation liquid in the heat absorption cavity 8 is increased at the moment, and further the pressure in the heat absorption cavity 8 is increased, when the pressure in the heat absorption cavity 8 reaches the critical value of a pressure release valve arranged in the one-way air outlet pipe 11, at the moment, gaseous evaporation liquid is sprayed out from the one-way air outlet pipe 11 at a high speed, and further the plurality of impellers 10 are driven to rotate, so that the impellers 10 made of magnetic materials continuously sweep under the magnetic ball 17, the magnetic ball 17 moves up and down in the liquid storage tank 14 under the action of the magnetic repulsion force of the impellers 10 and the elastic force of the spring 16, the magnetic ball 17 is separated from the upper end of the one-way liquid outlet hole 15 intermittently, the hydrochloric acid solution in the liquid storage tank 14 flows out intermittently, and the hydrochloric acid solution reacts with calcium carbonate powder to generate carbon dioxide;
the generated carbon dioxide is accumulated in the rotary cylinder 7 to increase the pressure in the rotary cylinder 7, when the pressure in the rotary cylinder 7 reaches the critical value of a pressure release valve arranged in the one-way gas orifice 19, the carbon dioxide enters the annular cavity 18 from the one-way gas orifice 19 at a high speed at the moment, and then is sprayed out at a high speed through the plurality of arc-shaped gas spraying pipelines 20, so that the content of the carbon dioxide in the ditch body 1 is increased, and the fire is extinguished, and the gas sprayed out of the bent part of the arc-shaped gas spraying pipeline 20 forms a certain angle with the surface of the rotary cylinder 7, so that the rotary cylinder 7 is rotated by the reaction force on the rotary cylinder 7 when the gas is sprayed out, so that the spraying area of the carbon dioxide is increased, and the fire extinguishing speed is increased;
when carbon dioxide is discharged at a high speed, the pressure in the ditch body 1 is increased instantly at the moment, and then the gas in the ditch body 1 is discharged through the one-way exhaust pipe 21, so that the warning whistle 22 arranged in the one-way exhaust pipe 21 gives out warning sound to remind a worker to process in time.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (2)
1. A fireproof alarm structure for a cable trench of a transformer substation comprises a trench body (1) fixedly connected in the ground, wherein a cover plate (2) is fixedly connected to the upper end of the trench body (1), a plurality of mounting plates (3) are fixedly connected to the inner wall of the trench body (1), the fireproof alarm structure is characterized in that a fixed cylinder (4) is fixedly connected to the bottom in the trench body (1), an annular groove (5) is formed in the upper end of the fixed cylinder (4), a circular ring (6) is hermetically and slidably connected to the inner wall of the annular groove (5), a rotating cylinder (7) is fixedly connected to the upper end of the circular ring (6), a heat absorption cavity (8) is formed in the lower end of the trench body (1), a sealing plate (9) is fixedly connected to the inner wall of the fixed cylinder (4), a plurality of impellers (10) are rotatably connected to the lower end of the sealing plate (9) through a rotating shaft, and the inner wall of the heat absorption cavity (8) is connected with the inner wall of the fixed cylinder (4) through a one-way outlet pipe (11), the pipe orifice of the one-way air outlet pipe (11) is obliquely arranged towards the direction of the impeller (10), the bottom in the fixed cylinder (4) is connected with the inner wall of the heat absorption cavity (8) through the one-way liquid outlet pipe (12), the upper end of the sealing plate (9) is symmetrically and fixedly connected with a liquid storage box (14) through a support, and a fire extinguishing mechanism for extinguishing the ditch body (1) is arranged in the liquid storage box (14);
the fire extinguishing mechanism comprises a spring (16) fixedly connected to the inner top of a liquid storage tank (14), the lower end of the spring (16) is fixedly connected with a magnetic ball (17), one impeller (10) is made of a magnetic material repellent to the magnetic ball (17), the lower end of the liquid storage tank (14) is provided with a one-way liquid outlet hole (15) matched with the lower end of the magnetic ball (17), an annular cavity (18) is formed in the rotating cylinder (7), the inner wall of the rotating cylinder (7) is connected with the inner wall of the annular cavity (18) through a one-way jet hole (19), and the inner wall of the annular cavity (18) is uniformly provided with a plurality of arc-shaped jet pipelines (20);
an evaporated liquid is arranged in the heat absorption cavity (8), calcium carbonate powder is arranged in a sealed space formed by the upper end of the sealing plate (9) and the inside of the rotating cylinder (7), and a hydrochloric acid solution is arranged in the liquid storage tank (14);
a plurality of one-way exhaust pipes (21) are fixedly connected to the upper end of the cover plate (2), and a plurality of alarming whistle (22) are installed in the one-way exhaust pipes (21).
2. The fire prevention alarm structure for the cable trench of the transformer substation of claim 1, wherein a pressure release valve is installed in the one-way air outlet pipe (11), and a pressure release valve is installed in the one-way air injection hole (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011423656.6A CN112546493B (en) | 2020-12-08 | 2020-12-08 | Fireproof alarm structure for cable trench of transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011423656.6A CN112546493B (en) | 2020-12-08 | 2020-12-08 | Fireproof alarm structure for cable trench of transformer substation |
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| Publication Number | Publication Date |
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| CN112546493A CN112546493A (en) | 2021-03-26 |
| CN112546493B true CN112546493B (en) | 2021-11-05 |
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| CN202011423656.6A Active CN112546493B (en) | 2020-12-08 | 2020-12-08 | Fireproof alarm structure for cable trench of transformer substation |
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Families Citing this family (5)
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| CN113694438A (en) * | 2021-07-27 | 2021-11-26 | 深圳市新物科技有限公司 | Automatic emergency processing system for cable peripheral safety environment based on edge calculation |
| CN114344776B (en) * | 2022-01-06 | 2022-10-11 | 浙江华神消防科技有限公司 | Novel fire extinguishing device and preparation method |
| CN114725856B (en) * | 2022-05-03 | 2024-06-18 | 国网新疆电力有限公司奎屯供电公司 | Fire-resistant RVV cable inoxidizing coating |
| CN219681524U (en) * | 2023-01-08 | 2023-09-15 | 华为数字能源技术有限公司 | Fire extinguishing device, battery pack and electric automobile |
| CN116047694B (en) * | 2023-03-31 | 2023-06-16 | 安徽博达项目管理咨询有限公司 | Optical cable fireproof channel system |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10191535A (en) * | 1996-12-24 | 1998-07-21 | Kenjiro Kori | Fire protection wall and fire protection division for closed culvert for cable |
| KR101365674B1 (en) * | 2013-10-25 | 2014-02-20 | (주)선진이엔지 | Anti fire provision for cable in underground power tunnel or common tunnel |
| CN107492794A (en) * | 2017-08-31 | 2017-12-19 | 国网河南省电力公司西峡县供电公司 | One kind sealing heat-conducting type outdoor power cabinet |
| CN108631190A (en) * | 2018-05-15 | 2018-10-09 | 肇庆胜尚知识产权服务有限公司 | A kind of Fuse Type self-extinguishing security power cabinet |
| CN110854720B (en) * | 2019-12-11 | 2021-02-05 | 尹俪橦 | Multifunctional power distribution cabinet for communication base station |
| CN111603917A (en) * | 2020-06-03 | 2020-09-01 | 杨汉顺 | Flue gas purification system for waste incineration |
| CN111864563B (en) * | 2020-07-28 | 2021-04-27 | 东营市南方电器有限责任公司 | Fire extinguishing type power distribution cabinet based on high-temperature demagnetization principle |
| CN112003227A (en) * | 2020-08-21 | 2020-11-27 | 李讲讲 | Cable trench with automatic fire extinguishing function for communication base station |
| CN111956978A (en) * | 2020-08-24 | 2020-11-20 | 罗玉敏 | Communication base station is with safe fire prevention cable pit |
| CN112023297B (en) * | 2020-09-08 | 2021-10-29 | 海天消防科技股份有限公司 | Self-extinguishing system for van |
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Effective date of registration: 20211019 Address after: 1122 Yuanshen Road, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai, 200120 Applicant after: STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER Co. Address before: 255022 200m east of the intersection of huluo road and Huifeng Road, Zhangdian District, Zibo City, Shandong Province Applicant before: Luo Yumin |
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