CN220801778U - Passive automatic fire extinguisher for coal mine rubber belt conveyor - Google Patents
Passive automatic fire extinguisher for coal mine rubber belt conveyor Download PDFInfo
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- CN220801778U CN220801778U CN202322407213.3U CN202322407213U CN220801778U CN 220801778 U CN220801778 U CN 220801778U CN 202322407213 U CN202322407213 U CN 202322407213U CN 220801778 U CN220801778 U CN 220801778U
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- water
- water pipe
- valve
- belt conveyor
- heat
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- 239000003245 coal Substances 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 144
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 20
- 239000000956 alloy Substances 0.000 claims abstract description 20
- 239000000523 sample Substances 0.000 claims abstract description 16
- 229910000743 fusible alloy Inorganic materials 0.000 claims abstract description 15
- 238000005507 spraying Methods 0.000 claims abstract description 14
- 239000007921 spray Substances 0.000 description 6
- 230000005484 gravity Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model discloses a passive automatic fire extinguishing device for a coal mine rubber belt conveyor, and belongs to the technical field of mine fire extinguishment. The heat-sensitive fusible alloy temperature sensing probe comprises a connecting piece, a conical plug, a supporting plate and a heat-sensitive alloy block, wherein the connecting piece is connected with the port of the elbow of the water pipe in a threaded mode, the conical plug is embedded into the connecting piece, the supporting plate is arranged below the conical plug, and the heat-sensitive alloy block is arranged below the supporting plate. When the ambient temperature is higher than 52 ℃, the thermosensitive fusible alloy temperature sensing probe is heated and melted, the taper plug is separated from the pressure release hole, water flows out of the pressure release hole to release pressure, the pressure at the upper end and the lower end of the valve core is unequal, so that the water in the water inlet pipe directly pushes the valve core upwards and is separated from the water outlet, and the water in the water inlet pipe directly flows out through the water outlet pipe through the outlet of the automatic water spraying control valve, thereby realizing passive automatic fire extinguishing.
Description
Technical Field
The utility model belongs to the technical field of mine fire extinguishment, and particularly relates to a passive automatic fire extinguishing device for a coal mine rubber belt conveyor.
Background
The coal mine rubber belt conveyor is mainly used for coal conveying of a coal mine, most of the rubber belt conveyor is arranged in a coal mine underground belt conveyor transportation roadway, after a fire disaster occurs in the roadway and power failure occurs, the electric control fire extinguishing protection device on the equipment is required to be provided with a backup automatic fire extinguishing protection device, so that the occurrence of the fire disaster in the roadway is prevented, and larger economic loss and personal injury are caused.
Therefore, a passive automatic fire extinguishing device for a coal mine rubber belt conveyor needs to be installed at present, and the problems are solved.
Disclosure of utility model
The utility model aims to provide a passive automatic fire extinguishing device for a coal mine rubber belt conveyor, so as to solve the technical problems.
The technical scheme is as follows: the passive automatic fire extinguishing device for the coal mine rubber belt conveyor comprises an automatic water spraying control valve, a water inlet pipe and a water outlet pipe which are respectively connected with two ends of the automatic water spraying control valve, a first water pipe connected with the upper end of the automatic water spraying control valve, a second water pipe and a third water pipe which are connected with the first water pipe through a three-way interface, a self-checking valve arranged on the second water pipe, a water pipe elbow connected with the third water pipe, and a heat-sensitive fusible alloy temperature sensing probe arranged on the water pipe elbow;
The thermosensitive fusible alloy temperature sensing probe comprises a connecting piece, a conical plug, a supporting plate and a thermosensitive alloy block, wherein the connecting piece is connected with the port of the water pipe elbow in a threaded mode, the conical plug is embedded into the connecting piece, the supporting plate is arranged below the conical plug, and the thermosensitive alloy block is arranged below the supporting plate.
In a specific implementation manner, a pressure release hole is formed in the connecting piece, and one end of the conical plug is embedded into the pressure release hole.
Through the technical scheme, when the pressure release hole is blocked by the conical plug and the self-checking valve is closed, the water flow pressure on the two sides of the valve core can be equal; when the taper plug is separated from the pressure release hole, water flows out of the pressure release hole to release the pressure in the pipeline.
In a specific embodiment, the heat-sensitive fusible alloy temperature sensing probe further comprises a bottom plate arranged below the heat-sensitive alloy block, the bottom plate is connected with the connecting piece through a support column, and an accommodating space capable of accommodating the heat-sensitive alloy block, the support plate and the conical plug is formed between the bottom plate and the connecting piece.
Through the technical scheme, after the thermosensitive alloy block is melted, the conical plug falls from the pressure release hole to provide a receiving carrier.
In a specific embodiment, the automatic water spray control valve comprises a valve body, a valve cover fixed on the valve body through bolts, and a valve core arranged inside the valve body;
The valve body is internally provided with water flow channels at the upper end and the lower end of the valve core respectively.
Through the technical scheme, the upward movement and the downward pressing of the valve core can be controlled by the water pressure of the two water flow channels.
In a specific implementation mode, a pilot hole (204) is formed in the valve body (201), an annular water channel is formed in the valve cover (202), and the pilot hole (204) is communicated with the annular water channel.
Through the technical scheme, water in the water inlet pipe can flow into the annular water channel through the pilot hole, so that the water enters the first water pipe, the second water pipe and the third water pipe, and when the water is in a normal state, the water pressure at the upper end of the valve core is greater than the water pressure at the lower end of the valve core.
In a specific embodiment, the temperature sensing probe of the heat sensitive fusible alloy is y_ ZSTX15_52 ℃.
Through the technical scheme, when the measured environment is in fire, and the ambient temperature is higher than 52 ℃, the heat-sensitive alloy block begins to melt.
The beneficial effects are that: the upper end of the valve core of the automatic water spraying control valve is connected with a first water pipe, a second water pipe and a third water pipe through a three-way joint, the second water pipe is provided with a self-checking valve, the third water pipe is provided with a thermosensitive fusible alloy temperature sensing probe, the automatic water spraying control valve is internally provided with a pilot hole, when a monitored environment is in a fire disaster, and the ambient temperature is higher than 52 ℃, the thermosensitive fusible alloy temperature sensing probe is heated and melted, a conical plug is separated from a pressure release hole, water flows out from the pressure release hole to release pressure, so that the water pressure at the upper end and the lower end of the valve core is unequal, the water in a water inlet pipe is directly pushed upwards, and the water in the water inlet pipe directly flows out through an outlet pipe of the automatic water spraying control valve, thereby realizing passive automatic fire extinguishing.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic structural diagram of an embodiment of the present utility model.
Reference numerals: 1. a water inlet pipe; 2. an automatic water spray control valve; 201. a valve body; 202. a valve cover; 203. a valve core; 204. a pilot hole; 3. a water outlet pipe; 4. a first water pipe; 5. a self-checking valve; 6. a second water pipe; 7. a three-way water pipe joint; 8. a third water pipe; 9. hexagonal outer filaments; 10. a water pipe elbow; 11. a temperature sensing probe of a thermosensitive fusible alloy; 1101. a connecting piece; 1102. a conical plug; 1103. a support plate; 1104. a heat sensitive alloy block; 1105. a support column; 1106. a bottom plate; 1107. and the pressure release hole.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present utility model. It will be apparent, however, to one skilled in the art that the utility model may be practiced without one or more of these details. In other instances, well-known features have not been described in detail in order to avoid obscuring the utility model.
As shown in fig. 1, the passive automatic fire extinguishing device for the coal mine rubber belt conveyor is hereinafter referred to as the device. The device comprises an automatic water spraying control valve 2, a self-checking valve 5, a thermosensitive fusible alloy temperature sensing probe 11, a water inlet pipe 1, a water outlet pipe 3, a three-way water pipe joint 7, a first water pipe 4, a second water pipe 6, a third water pipe 8 and a water pipe elbow 10.
The automatic water spray control valve 2 includes a valve body 201, a valve core 203, and a valve cover 202. The valve cover 202 is fixed on the valve body 201 through the bolt, the valve core 203 is installed in the valve body 201, the two ends of the valve body 201 are provided with a water inlet and a water outlet, the water inlet pipe 1 and the water outlet pipe 3 are respectively connected with the water inlet and the water outlet of the valve body 201, the space formed by the valve body 201 and the valve cover 202 is divided into an upper part and a lower part by the valve core 203 to respectively form a water flow channel, a pilot hole 204 is formed in the valve core 203, an annular water channel is formed in the valve cover, the pilot hole 204 is communicated with the annular water channel, an adjusting hole is formed in the valve core 203, and the adjusting hole and the water outlet are in a 32-degree arc-shaped design, so that the water flow can be increased.
One end of the first water pipe 4 is communicated with the annular water channel, the other end of the first water pipe is connected with the three-way water pipe joint 7, one end of the second water pipe 6 is connected with the three-way water pipe joint 7, the other end of the second water pipe is provided with the self-checking valve 5, one end of the third water pipe 8 is connected with the three-way water pipe joint 7, the other end of the third water pipe is connected with the water pipe elbow 10, one end of the elbow is perpendicular to the horizontal plane, and after Yi Rong alloy is melted, the conical plug 1102 can fall off by utilizing self gravity.
The heat-sensitive fusible alloy temperature sensing probe 11 is arranged at the other end of the water pipe elbow 10 and comprises a connecting piece 1101, a bottom plate 1106, a supporting plate 1103, a heat-sensitive alloy block 1104 and a conical plug 1102. The connecting piece 1101 is in threaded connection with the water pipe elbow 10, a pressure release hole 1107 is formed in the connecting piece 1101, the tip of the conical plug 1102 is embedded into the pressure release hole 1107, the bottom of the conical plug 1102 is in contact with the supporting plate, the bottom plate 1106 is fixedly connected with the connecting piece 1101 through the supporting column 1105, an accommodating space capable of accommodating the thermosensitive alloy block 1104, the supporting plate 1103 and the conical plug 1102 is formed between the bottom plate 1106 and the connecting piece 1101, the thermosensitive alloy block 1104 is arranged between the supporting plate 1103 and the bottom plate 1106, when the thermosensitive alloy block 1104 is melted, the supporting plate 1103 falls onto the bottom plate 1106, the conical plug 1102 is separated from the pressure release hole 1107 due to self gravity, and the thermosensitive alloy block 1104 falls onto the supporting plate 1103.
As a preferable scheme, the joint of the second water pipe 6 and the third water pipe 8 and the tee joint 7 is provided with a hexagonal external thread 9, so that the second water pipe 6 and the third water pipe 8 are connected with the tee joint interface, and the tightness of the connection is ensured.
As a preferred solution, the diameter of the pilot hole 204 is smaller than the diameters of the water inlet pipe 1 and the water outlet pipe 3, and when the conical plug 1102 in the pressure release hole 1107 falls, water can flow out of the water outlet pipe 3.
As a preferred embodiment, the temperature sensor probe 11 is Y_ ZSTX15_52 ℃ so that when a fire occurs and the ambient temperature is higher than 50+2 ℃, the heat sensitive alloy block 1104 begins to melt.
As shown in fig. 2, in the embodiment, when the water inlet pipe 1 starts to be fed in under normal conditions, the water outlet pressure of the automatic water spraying control valve 2 is zero, the upper end pressure of the valve core 203 is also zero, the valve core 203 is firstly flushed up by water, the water outlet flows out, meanwhile, the water flows into the annular water channel at the valve cover 202 through the pilot hole 204, and at this time, if the self-check valve 5 is closed and the taper plug 1102 blocks the pressure release hole 1107, the water pressure at the upper end and the lower end of the valve core 203 is equal in principle, but the upper bearing area of the valve core 203 is larger than the lower bearing area of the valve core 203, and under the condition that the two-side pressure is equal, the upper bearing area of the valve core 203 is larger than the lower bearing area, so that the water pressure intensity above the valve core 203 is larger than the lower pressure intensity, and the water pressure automatically pushes the valve core 203 downwards, thereby blocking the water outlet passage of the control valve.
The working principle of the utility model is as follows: when the monitored environment is in fire and the ambient temperature is higher than 50+2 ℃, the thermosensitive alloy block 1104 is heated and melted, the taper plug 1102 is separated from the pressure release hole 1107, water flows out from the pressure release hole 1107, so that the water pressure of the first water pipe 4, the second water pipe 6 and the third water pipe 8 is released, the pressure at the upper end of the valve core 203 is almost zero due to the smaller diameter of the pilot hole 204, the water pressure at the lower end of the valve core 203 automatically pushes the valve core 203 upwards, the water in the water inlet pipe increases the water flow channel through an arc of 32 degrees, the valve core 203 moves upwards to be separated from the water outlet, and the water at the water inlet flows out directly from the water outlet and flows out through the water outlet pipe.
As a preferable scheme, the water outlet pipe is connected with the spray head, and when water flows out from the water outlet pipe, the water is continuously sprayed to the fire surface through the spray head to extinguish the fire, thereby realizing passive automatic fire prevention and extinguishment.
As a preferable scheme, the nominal passing DN20 of the inlet and outlet of the automatic water spraying control valve 2, the working pressure of 3MP, the pipeline flow rate of 25L/S when the water pressure is 3MP, the range of the spray head of 6 meters and the fire extinguishing control range of 20 square meters.
As described above, although the present utility model has been shown and described with reference to certain preferred embodiments, it is not to be construed as limiting the utility model itself. Various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (6)
1. The utility model provides a colliery is passive automatic fire extinguishing device for rubber belt conveyor which characterized by includes: the automatic water spraying control valve (2), a water inlet pipe (1) and a water outlet pipe (3) which are respectively connected to two ends of the automatic water spraying control valve (2), a first water pipe (4) connected to the upper end of the automatic water spraying control valve (2), a second water pipe (6) and a third water pipe (8) which are connected with the first water pipe (4) through three-way interfaces, a self-checking valve (5) arranged on the second water pipe (6), a water pipe elbow (10) connected with the third water pipe (8) and a heat-sensitive fusible alloy temperature sensing probe (11) arranged on the water pipe elbow (10);
the heat-sensitive fusible alloy temperature sensing probe (11) comprises a connecting piece (1101) which is connected with the port of the water pipe elbow (10) in a threaded mode, a conical plug (1102) which is embedded into the connecting piece (1101), a supporting plate (1103) which is arranged below the conical plug (1102), and a heat-sensitive alloy block (1104) which is arranged below the supporting plate (1103).
2. The passive automatic fire extinguishing apparatus for coal mine rubber belt conveyor according to claim 1, wherein: a pressure release hole (1107) is formed in the connecting piece (1101), and one end of the conical plug (1102) is embedded into the pressure release hole (1107).
3. The passive automatic fire extinguishing apparatus for coal mine rubber belt conveyor according to claim 2, wherein: the heat-sensitive fusible alloy temperature sensing probe (11) further comprises a bottom plate (1106) arranged below the heat-sensitive alloy block (1104), the bottom plate (1106) is connected with the connecting piece (1101) through a supporting column (1105), and an accommodating space capable of accommodating the heat-sensitive alloy block (1104), the supporting plate (1103) and the conical plug (1102) is formed between the bottom plate and the connecting piece (1101).
4. The passive automatic fire extinguishing apparatus for coal mine rubber belt conveyor according to claim 1, wherein: the automatic water spraying control valve (2) comprises a valve body (201), a valve cover (202) fixed on the valve body (201) through bolts, and a valve core (203) arranged inside the valve body (201);
The valve body (201) is internally provided with water flow channels at the upper end and the lower end of the valve core (203).
5. The passive automatic fire extinguishing apparatus for coal mine rubber belt conveyor according to claim 4, wherein: a pilot hole (204) is formed in the valve body (201), an annular water channel is formed in the valve cover (202), and the pilot hole (204) is communicated with the annular water channel.
6. The passive automatic fire extinguishing apparatus for coal mine rubber belt conveyor according to claim 1, wherein: the temperature sensing probe (11) of the thermosensitive fusible alloy is Y_ ZSTX15_52 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322407213.3U CN220801778U (en) | 2023-09-05 | 2023-09-05 | Passive automatic fire extinguisher for coal mine rubber belt conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322407213.3U CN220801778U (en) | 2023-09-05 | 2023-09-05 | Passive automatic fire extinguisher for coal mine rubber belt conveyor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220801778U true CN220801778U (en) | 2024-04-19 |
Family
ID=90698426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322407213.3U Active CN220801778U (en) | 2023-09-05 | 2023-09-05 | Passive automatic fire extinguisher for coal mine rubber belt conveyor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220801778U (en) |
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2023
- 2023-09-05 CN CN202322407213.3U patent/CN220801778U/en active Active
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