CN209880319U - Transformer shell with fire extinguishing function - Google Patents
Transformer shell with fire extinguishing function Download PDFInfo
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- CN209880319U CN209880319U CN201920340968.7U CN201920340968U CN209880319U CN 209880319 U CN209880319 U CN 209880319U CN 201920340968 U CN201920340968 U CN 201920340968U CN 209880319 U CN209880319 U CN 209880319U
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- pipe
- shell
- change material
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Abstract
A transformer shell with a fire extinguishing function comprises a shell, wherein a plurality of air inlet pipes are fixed at the bottom end of the shell; the device also comprises a coil pipe, wherein the coil pipe is filled with a hydrated salt solid-liquid phase change material, and the bottom end of the coil pipe is communicated with a liquid discharge assembly; the top wall of the shell is communicated with the top pipe, the top end of the communicating pipe is located outside the shell, the bottom end of the communicating pipe is located in the shell, the second coil pipe is fixed on the inner wall of the communicating pipe, the bottom end of the second coil pipe is communicated with the second liquid discharging assembly, the second base plate is fixed below the communicating pipe, the bottom end of the communicating pipe is located in the second base plate, the hydrated salt solid-liquid phase change material is filled in the second coil pipe, the bottom end of the second coil pipe is communicated with the second liquid discharging assembly, the second liquid discharging assembly is located in the second coil pipe, the top wall of the shell is fixedly provided with a rain cover, and the top opening of. The shell can quickly and effectively seal a gas inlet and outlet channel after the transformer is ignited, so that the gas is extinguished naturally.
Description
Technical Field
The utility model relates to a shell of transformer, concretely relates to can be after the transformer catches fire even with the shell that the fire extinguishes.
Background
A Transformer (Transformer) is a device that changes an alternating-current voltage by using the principle of electromagnetic induction, and main components are a primary coil, a secondary coil, and an iron core (magnetic core). The main functions are as follows: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization (magnetic saturation transformer), and the like. In the modern society, transformers have become indispensable equipment in people's life, and in order to guarantee the stable safe work of transformer, the safeguard measure of transformer is very important.
Study CN201721709009.5 fire prevention formula transformer case before, proposed the design isolation box, the top of isolation box is equipped with the separation net, is enclosed by a plurality of closing plates at the box of isolation box, is equipped with the access door on the closing plate, and the closing plate outside-in is including the metal sheet and the flame retardant coating that connect gradually, and the flame retardant coating is the PLASTIC LAMINATED, is equipped with a plurality of opening directions and metal sheet vertically recess on the PLASTIC LAMINATED, and the recess bottom is equipped with the activated carbon cake.
Previous designs have been tested and long-term use by customers has been found to have several disadvantages: 1. the shell structure of the shell is complex, and the cost is too high; 2. the fire extinguishing structure comprises a dry ice machine, the dry ice machine needs electricity, and the installation and the use are very complicated; 3. although the activated carbon inside the casing can absorb smoke, the activated carbon itself may be ignited under open fire and high temperature; 4. when the transformer is in fire, the ventilation holes of the shell cannot be closed, the transformer still is electrified after being in fire, the transformer still has the possibility of being in fire again, and the ventilation holes are filled with air, so that the conditions for fire initiation are still provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can be after the transformer is on fire, airtight get up the casing, block the transformer casing that has the function of putting out a fire of air current business turn over casing.
In order to achieve the purpose, the utility model comprises a shell, wherein a plurality of air inlet pipes are fixed at the bottom end of the shell, each air inlet pipe comprises a horizontal pipe, a bent pipe and a vertical pipe, one end of each horizontal pipe is positioned in the shell, one end of each horizontal pipe is positioned outside the shell, the horizontal pipes are tightly attached to the bottom surface of the shell, one end of each horizontal pipe positioned outside the shell is communicated with one end of each bent pipe, the other end of each bent pipe is communicated with the vertical pipe, the opening of each vertical pipe faces downwards, and the highest point of each bent pipe is;
the device also comprises a coil pipe, wherein the coil pipe is fixed on the inner wall of the shell, the coil pipe is filled with a hydrated salt solid-liquid phase-change material, the phase change temperature of the hydrated salt solid-liquid phase-change material is 60-80 ℃, and the liquefied volume of the hydrated salt solid-liquid phase-change material is larger than the area of the bottom surface of the shell and the height of the opening of the horizontal pipe;
the bottom end of the coil pipe is communicated with a liquid drainage component, and the liquid drainage component comprises a tank body, a chassis, a top pipe and a ball plug; the bottom end of the tank body is provided with an opening, the bottom end of the tank body is fixed with a base plate, the opening of the base plate is upward, the tank body is positioned in the base plate, a gap of 3-5mm is reserved between the base plate and the tank body or the bottom end of the tank body is fixedly connected with the base plate, the bottom end of the tank body is provided with a liquid flowing hole, the height of the base plate is 4-6mm, a second solid-liquid phase change material is filled in the tank body, the phase change temperature of the second solid-liquid phase change material is within the range of 100 plus 120 ℃, a top pipe is communicated with the top wall of the tank body, the diameter of the ball plug is not more than that of the; the bottom of the top pipe is fixedly provided with a sealing ring, the diameter of an inner ring of the sealing ring is 2/3-4/5 of the diameter of the ball plug, the top of the ball plug is tightly attached to the inner ring of the sealing ring, the second solid-liquid phase change material is densely filled in the tank body, and the compactness of the second solid-liquid phase change material can fix the position of the ball plug when the second solid-liquid phase change material is in a solid state and prevent the ball plug from moving downwards;
the top wall of the shell is communicated with a top pipe, the top end of a communicating pipe is positioned outside the shell, the bottom end of the communicating pipe is positioned in the shell, a second coil pipe is fixed on the inner wall of the communicating pipe, the bottom end of the second coil pipe is communicated with a second liquid discharging assembly, a second chassis is fixed below the communicating pipe, a gap is left between the second chassis and the bottom opening of the communicating pipe, the bottom end of the communicating pipe is positioned in the second chassis, the second coil pipe is filled with a hydrated salt solid-liquid phase change material, the liquefaction temperature is 60-80 ℃,
the second liquid discharge assembly is positioned in the second coil pipe, and the liquefied volume of the solid-liquid phase change material in the second coil pipe can submerge the bottom opening of the communicating pipe; the structure of the second liquid drainage assembly is the same as that of the liquid drainage assembly;
the top wall of the shell is fixed with a rain cover, and the top opening of the communicating pipe is positioned under the rain cover.
Preferably, the solid-liquid phase-change material is NaOH. H2O, and the liquefaction temperature is 64 degrees.
Further, the bottom opening of the communicating pipe is located right above the bottom surface of the second chassis, the area of the bottom surface of the communicating pipe is smaller than that of the bottom surface of the chassis, a plurality of vertical rods are fixed on the bottom surface of the chassis, the free ends of the vertical rods are vertically upward, a foam board is placed on the bottom surface of the second chassis, and the foam board is located in the range surrounded by the vertical rods.
Preferably, the second solid-liquid phase-change material is MgCl 2.6H2O, and the phase transition temperature is 116.7 degrees.
Preferably, the chassis of the drainage assembly is fixed to the bottom surface of the housing.
The beneficial effects of the utility model reside in that, can utilize solid-liquid phase-change material to come the gaseous passageway of business turn over on the shutoff casing, reach the purpose of seal shell, make the fire in the casing extinguish because the oxygen deficiency.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of a drain assembly.
FIG. 3 is a schematic view of the state after the fire is on
Detailed Description
The following describes the present invention in detail with reference to the accompanying drawings.
First, since the case is not likely to have a high temperature of 100 degrees or more in a natural state and is likely to have a temperature higher than 100 degrees only in the case of fire, whether fire is occurring or not is sensed by selecting a solid-liquid phase change material having a liquefaction temperature of 100 degrees or more.
As shown in fig. 1 to 3, a transformer housing with a fire extinguishing function includes a housing 10, and is characterized in that a plurality of air inlet pipes 20 are fixed at the bottom end of the housing 10, where each air inlet pipe 20 includes a horizontal pipe 21, an elbow pipe 22 and a vertical pipe 23, one end of the horizontal pipe 21 is located inside the housing 10, and the other end of the horizontal pipe 21 is located outside the housing 10, and is connected with one end of the elbow pipe 22, the other end of the elbow pipe 22 is connected with the vertical pipe 23, the opening of the vertical pipe 23 faces downward, and the highest point of the elbow pipe 22 is higher than the highest point of the;
the device also comprises a coil 60, wherein the coil 60 is fixed on the inner wall of the shell 10, the coil 60 is filled with a hydrated salt solid-liquid phase-change material, the phase change temperature is 60-80 ℃, the liquefied volume of the hydrated salt solid-liquid phase-change material is larger than the multiplier of the bottom surface area of the shell 10 and the height of the orifice of the horizontal pipe 21, namely the liquefied hydrated salt solid-liquid phase-change material filled in the coil 60 flows out of the coil 60 and can submerge the horizontal pipe 21, so that airflow can not enter and exit the shell through the air inlet pipe 20;
the bottom end of the coil 60 is communicated with a drainage assembly 50, and the drainage assembly 50 comprises a tank body, a chassis 51, a top pipe 52 and a ball plug 53; the bottom end of the tank body is provided with an opening, the bottom end of the tank body is fixedly provided with a base plate 51, the base plate 51 is provided with an upward opening, the tank body is positioned in the base plate 51, a gap of 3-5mm is reserved between the base plate 51 and the tank body or the bottom end of the tank body is fixedly connected with the base plate 51, the bottom end of the tank body is provided with a liquid flow hole, the height of the base plate 51 is 4-6mm, a second solid-liquid phase change material is filled in the tank body, the phase change temperature of the second solid-liquid phase change material is within the range of 100-120 ℃, a top pipe 52 is communicated with the top wall of the tank body, the diameter of the ball plug 53 is not more than that of the top pipe 52; the bottom of the top pipe 52 is fixed with a sealing ring 54, the diameter of the inner ring of the sealing ring 54 is 2/3-4/5 of the diameter of the ball plug 53, the top of the ball plug 53 is tightly attached to the inner ring of the sealing ring 54, the second solid-liquid phase-change material is densely filled in the tank body, the compactness of the second solid-liquid phase-change material can fix the position of the ball plug 53 when the second solid-liquid phase-change material is in a solid state, the ball plug 53 is prevented from moving downwards, and the sealing ring 54 has the function of ensuring that liquid cannot flow into the tank body of the drainage assembly 50 after the hydrate salt hydrate solid-liquid phase-. The phase transition temperature of the hydrate salinity solid-liquid phase-change material of the coil 60 is low, within 60-80 ℃, the hydrate salinity solid-liquid phase-change material can be rapidly liquefied at the initial stage of fire, when the fire temperature rises, the second solid-liquid phase-change material in the liquid discharge assembly 50 is liquefied, the ball plug 53 falls, and thus the liquefied second solid-liquid phase-change material and the liquefied solid-liquid phase-change material in the coil flow out from a gap between the chassis and the bottom end of the tank body or from a liquid flow hole at the bottom end of the tank body, overflow from the top end of the chassis 51 and then submerge the horizontal pipe 21, thereby closing the air inlet pipe 20.
The bottom plate of the drain assembly 50 is preferably fixed to the bottom surface of the casing 10 so that the liquefied solid-liquid phase-change material can be rapidly flowed to the bottom surface of the casing.
The top wall of the shell 10 is communicated with a top pipe 13, the top end of a communication pipe 13 is positioned outside the shell 10, the bottom end of the communication pipe 13 is positioned in the shell 10, a second coil pipe 30 is fixed on the inner wall of the communication pipe 13, the bottom end of the second coil pipe 30 is communicated with a second liquid discharging component 70, a second chassis 40 is fixed below the communication pipe 13, the bottom end of the communication pipe 13 is positioned in the second chassis 40, a hydrated salt solid-liquid phase change material is filled in the second coil pipe 30, the liquefaction temperature of the hydrated salt solid-liquid phase change material is 60-80 ℃, the bottom end of the second coil pipe 30 is communicated with the second liquid discharging component 70, the second liquid discharging component 70 is positioned in the second coil pipe 30, and the liquefied volume of the solid-liquid phase change material in the; the second drain assembly 70 has the same structure as the drain assembly 50.
In addition, the bottom opening of the communicating pipe 13 is positioned right above the bottom surface of the second chassis 40, the area of the bottom surface of the communicating pipe 13 is smaller than that of the bottom surface of the chassis, a plurality of vertical rods 43 are fixed on the bottom surface of the chassis 40, the vacant ends of the vertical rods 43 are vertically upward and point to the space outside the communicating pipe 13, a foam plate 42 is placed on the bottom surface of the second chassis 40, the foam plate 42 floats upwards after the hydrate salt is liquefied, the bottom opening of the communicating pipe 13 can be blocked under the limitation of the vertical rods 43, the bottom opening of the communicating pipe 13 can be blocked when the liquid level continues to rise, and the effect of the foam plate is to accelerate the. The second bottom plate 40 does not obstruct the airflow passing through the communication pipe 13 because a gap is left between the second bottom plate and the bottom opening of the communication pipe 13.
In order to prevent the second chassis 40 from accumulating water due to rain, a rain cover 11 is fixed on the top wall of the shell 10, and the top opening of the communicating pipe 13 is positioned right below the rain cover.
The solid-liquid phase-change material can be selected from NaOH & H2O, the liquefaction temperature of the solid-liquid phase-change material is 64 ℃, so that the solid-liquid phase-change material with lower liquefaction temperature is used, and the purpose of rapidly providing liquid and a gas inlet and outlet channel is realized. And the phase transition temperature of the second solid-liquid phase-change material, such as optional MgCl 2.6H2O, is 116.7 ℃, and the function of the second solid-liquid phase-change material is mainly to sense whether a fire is started or not.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A transformer shell with a fire extinguishing function comprises a shell body and is characterized in that a plurality of air inlet pipes are fixed at the bottom end of the shell body, each air inlet pipe comprises a horizontal pipe, a bent pipe and a vertical pipe, one end of each horizontal pipe is located in the shell body, the other end of each horizontal pipe is located outside the shell body, the horizontal pipes are tightly attached to the bottom surface of the shell body, one end, located outside the shell body, of each horizontal pipe is communicated with one end of each bent pipe, the other end of each bent pipe is communicated with the vertical pipe, the opening of each vertical pipe faces downwards, and the highest;
the device also comprises a coil pipe, wherein the coil pipe is fixed on the inner wall of the shell, the coil pipe is filled with a hydrated salt solid-liquid phase-change material, the phase change temperature of the hydrated salt solid-liquid phase-change material is 60-80 ℃, and the liquefied volume of the hydrated salt solid-liquid phase-change material is larger than the area of the bottom surface of the shell and the height of the opening of the horizontal pipe;
the bottom end of the coil pipe is communicated with a liquid drainage component, and the liquid drainage component comprises a tank body, a chassis, a top pipe and a ball plug; the bottom end of the tank body is provided with an opening, the bottom end of the tank body is fixed with a base plate, the opening of the base plate is upward, the tank body is positioned in the base plate, a gap of 3-5mm is reserved between the base plate and the tank body or the bottom end of the tank body is fixedly connected with the base plate, the bottom end of the tank body is provided with a liquid flowing hole, the height of the base plate is 4-6mm, a second solid-liquid phase change material is filled in the tank body, the phase change temperature of the second solid-liquid phase change material is within the range of 100 plus 120 ℃, a top pipe is communicated with the top wall of the tank body, the diameter of the ball plug is not more than that of the; the bottom of the top pipe is fixedly provided with a sealing ring, the diameter of an inner ring of the sealing ring is 2/3-4/5 of the diameter of the ball plug, the top of the ball plug is tightly attached to the inner ring of the sealing ring, the second solid-liquid phase change material is densely filled in the tank body, and the compactness of the second solid-liquid phase change material can fix the position of the ball plug when the second solid-liquid phase change material is in a solid state and prevent the ball plug from moving downwards;
the top wall of the shell is communicated with a top pipe, the top end of a communicating pipe is positioned outside the shell, the bottom end of the communicating pipe is positioned in the shell, a second coil pipe is fixed on the inner wall of the communicating pipe, the bottom end of the second coil pipe is communicated with a second liquid discharging assembly, a second chassis is fixed below the communicating pipe, a gap is left between the second chassis and the bottom opening of the communicating pipe, the bottom end of the communicating pipe is positioned in the second chassis, the second coil pipe is filled with a hydrated salt solid-liquid phase change material, the liquefaction temperature is 60-80 ℃,
the second liquid discharge assembly is positioned in the second coil pipe, and the liquefied volume of the solid-liquid phase change material in the second coil pipe can submerge the bottom opening of the communicating pipe; the structure of the second liquid drainage assembly is the same as that of the liquid drainage assembly;
the top wall of the shell is fixed with a rain cover, and the top opening of the communicating pipe is positioned under the rain cover.
2. The transformer housing with fire extinguishing function according to claim 1, wherein the solid-liquid phase-change material is NaOH-H2O, and the liquefaction temperature thereof is 64 degrees.
3. The transformer housing with a fire extinguishing function according to claim 1, wherein a bottom opening of the communicating pipe is positioned right above the bottom surface of the second chassis, the area of the bottom surface of the communicating pipe is smaller than that of the bottom surface of the chassis, a plurality of vertical rods are fixed on the bottom surface of the chassis, the free ends of the vertical rods are vertically upward, a foam plate is placed on the bottom surface of the second chassis, and the foam plate is positioned in a range surrounded by the vertical rods.
4. The transformer case with fire extinguishing function according to claim 1, wherein the second solid-liquid phase-change material is MgCl 2.6h2O, and the phase transition temperature thereof is 116.7 degrees.
5. The transformer housing with fire extinguishing function according to any one of claims 1 to 4, wherein the chassis of the drain assembly is fixed on the bottom surface of the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920340968.7U CN209880319U (en) | 2019-03-18 | 2019-03-18 | Transformer shell with fire extinguishing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920340968.7U CN209880319U (en) | 2019-03-18 | 2019-03-18 | Transformer shell with fire extinguishing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209880319U true CN209880319U (en) | 2019-12-31 |
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ID=68955393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920340968.7U Expired - Fee Related CN209880319U (en) | 2019-03-18 | 2019-03-18 | Transformer shell with fire extinguishing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209880319U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111544805A (en) * | 2020-02-28 | 2020-08-18 | 青岛能蜂电气有限公司 | Automatic fire extinguishing device |
| CN111544804A (en) * | 2020-02-28 | 2020-08-18 | 青岛能蜂电气有限公司 | Automatic fire extinguishing device |
-
2019
- 2019-03-18 CN CN201920340968.7U patent/CN209880319U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111544805A (en) * | 2020-02-28 | 2020-08-18 | 青岛能蜂电气有限公司 | Automatic fire extinguishing device |
| CN111544804A (en) * | 2020-02-28 | 2020-08-18 | 青岛能蜂电气有限公司 | Automatic fire extinguishing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191231 Termination date: 20200318 |
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| CF01 | Termination of patent right due to non-payment of annual fee |