CN213453716U - Fire detection air supply device of thermal power generating unit - Google Patents
Fire detection air supply device of thermal power generating unit Download PDFInfo
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- CN213453716U CN213453716U CN202022143346.0U CN202022143346U CN213453716U CN 213453716 U CN213453716 U CN 213453716U CN 202022143346 U CN202022143346 U CN 202022143346U CN 213453716 U CN213453716 U CN 213453716U
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- air
- distribution pipe
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- air supply
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Abstract
The utility model relates to a fire detection air supply device of a thermal power generating unit, which comprises a fire detection fan, wherein the fire detection fan comprises an air outlet and an air inlet, the air outlet is connected with an air supply main pipe, a first valve switch is connected on the air supply main pipe, and an air inlet mesh enclosure is sleeved on the air inlet; a dustproof cylinder is covered outside the air inlet mesh enclosure and is fixedly connected with the shell of the fire detection fan; the annular air distribution pipe is positioned between the dust-proof cylinder and the air inlet mesh enclosure, the annular air distribution pipe is connected with the dust-proof cylinder through a sliding mechanism, and the sliding direction of the annular air distribution pipe is in the axial direction of the dust-proof cylinder; the pipe wall of the annular air distribution pipe is uniformly provided with air exhaust holes, the air supply direction of the air exhaust holes faces to the air inlet mesh enclosure, and the annular air distribution pipe is connected with the air supply main pipe through an air supply hose. The fire detection fan can automatically blow and remove dust in the operation process, thereby saving the cleaning of special people every day and ensuring the air supply effect of the fire detection fan. After the fire detection fan runs for a long time, the annular air distribution pipe can be manually moved, and the blowing effect is enhanced.
Description
Technical Field
The utility model relates to an air supply device especially relates to thermal power generating unit fire and examines air supply device.
Background
At present, a fire detection probe is used by a thermal power plant to judge whether a boiler is put out a fire or not, a fire detection cooling fan is used as one of important auxiliary equipment of a boiler unit set to provide cooling air and clean air when the fire detection probe normally works, and the fire detection probe is like eyes of the boiler which normally works and can express the condition of combustion inside a hearth of the boiler.
The conventional thermal power factory boiler all sets up two fire and examines cooling blower for the cooling of flame detector's fire detection probe. The two fans are operated one by one and are standby, so that the simultaneous shutdown of the fire detection cooling fans is not allowed, otherwise, the flame detector can be burnt out, and the monitoring of the hearth fire is lost.
Because the cooling blower is examined to the fire is close to the boiler, consequently, the dust falls seriously on examining the cooling blower to the fire, and the air inlet screen panel that admits air is examined the air inlet of cooling blower as the fire, and the dust generally all needs the special messenger to clear up every day, otherwise influences the fan to a great extent and admits air, and then influences the air feed effect of fan.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art's not enough, provide the wind air feed device is examined to thermal power generating unit fire.
The utility model is realized by the following technical scheme, the utility model provides a fire detection air supply device of a thermal power generating unit, which comprises a fire detection fan, wherein the fire detection fan comprises an air outlet and an air inlet, the air outlet is connected with an air supply main pipe, a first valve switch is connected on the air supply main pipe, and an air inlet mesh enclosure is sleeved on the air inlet; a dustproof cylinder is covered outside the air inlet mesh enclosure and is fixedly connected with the shell of the fire detection fan; the annular air distribution pipe is positioned between the dust-proof cylinder and the air inlet mesh enclosure, the annular air distribution pipe is connected with the dust-proof cylinder through a sliding mechanism, and the sliding direction of the annular air distribution pipe is in the axial direction of the dust-proof cylinder; the pipe wall of the annular air distribution pipe is uniformly provided with air exhaust holes, the air supply direction of the air exhaust holes faces to the air inlet mesh enclosure, and the annular air distribution pipe is connected with the air supply main pipe through an air supply hose.
Preferably, the air supply hose is connected to a second valve switch.
Preferably, the sliding mechanism comprises two sliding chutes axially arranged along the dust-proof cylinder, a sliding block is connected in each sliding chute in a sliding manner, the two sliding chutes are both installed on the inner wall of the dust-proof cylinder, the installation positions of the two sliding chutes are opposite, and the directions of the notches are opposite; two sliders are fixedly connected with the annular air distribution pipe.
Preferably, a push rod is fixedly connected to the annular air distribution pipe and extends out of the dustproof barrel.
The utility model has the advantages that:
1. the fire detection fan can automatically blow and remove dust in the operation process, thereby saving the cleaning of special people every day and ensuring the air supply effect of the fire detection fan. After the fire detection fan runs for a long time, the annular air distribution pipe can be manually moved, and the blowing effect is enhanced.
2. The arrangement of the sliding mechanism enables the annular air distribution pipe to axially slide along the dustproof cylinder, and different positions of the air inlet mesh enclosure are swept and dedusted.
Drawings
FIG. 1 is a schematic structural view of the present invention;
shown in the figure:
1. the fire detection device comprises a fire detection fan, 2, an air outlet, 3, an air supply main pipe, 4, a first valve switch, 5, an air inlet mesh enclosure, 6, a dust-proof cylinder, 7, an annular air distribution pipe, 8, an air exhaust hole, 9, a sliding groove, 10, a sliding block, 11, an air supply hose, 12, a second valve switch, 13 and a push rod.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.
As shown in fig. 1, the utility model discloses a fan 1 is examined to the fire, fan 1 is examined to the fire includes air outlet 2 and air intake, and air outlet 2 is connected with female pipe 3 of air feed, connects first valve switch 4 on female pipe 3 of air feed, and the cover has air inlet mesh cover 5 on the air intake. The outer part of the air inlet mesh enclosure 5 is covered with a dustproof cylinder 6, and the dustproof cylinder 6 is fixedly connected with the shell of the fire detection fan 1. The annular air distribution pipe 7 is located between the dust-proof cylinder 6 and the air inlet mesh enclosure 5, the annular air distribution pipe 7 is connected with the dust-proof cylinder 6 through a sliding mechanism, and the sliding direction of the annular air distribution pipe 7 is the axial direction of the dust-proof cylinder 6. Air exhaust holes 8 are uniformly distributed on the pipe wall of the annular air distribution pipe 7, the air supply direction of the air exhaust holes 8 faces the air inlet mesh enclosure 5, and the annular air distribution pipe 7 is connected with the air supply main pipe 3 through an air supply hose 11.
In the present embodiment, the air supply hose 11 is connected to a second valve switch 12.
In this embodiment, the sliding mechanism includes two chutes 9 axially arranged along the dust-proof cylinder 6, a sliding block 10 is slidably connected in each chute 9, the two chutes 9 are both mounted on the inner wall of the dust-proof cylinder 6, the mounting positions of the two chutes 9 are opposite, and the directions of the notches are opposite. The two sliding blocks 10 are fixedly connected with the annular air distribution pipe 7. The arrangement of the sliding mechanism enables the annular air distribution pipe 7 to axially slide along the dustproof cylinder 6, and the sweeping and dust removal are carried out on different positions of the air inlet mesh enclosure 5.
In the embodiment, in order to facilitate the movement of the annular air distribution pipe 7, a push rod 13 is fixedly connected to the annular air distribution pipe 7, and the push rod 13 extends out of the dust-proof cylinder 6. The movement of the annular air distribution pipe 7 can be realized by pushing the push rod 13.
When the fire detection fan is used specifically, when the fire detection fan 1 operates, a part of air is led out by means of the air supply hose 11, the air is blown out through the annular air distribution pipe 7, different positions of the air inlet mesh enclosure 5 are swept and dedusted, and the swept dust is then taken away by the fire detection fan 1, so that the dispersion of dust is avoided. The dust-proof cylinder 6 can play a role in blocking dust, and dust is prevented from directly falling on the air inlet mesh enclosure 5. The fire detection fan 1 can automatically blow and remove dust in the operation process, thereby saving cleaning by special people every day and ensuring the air supply effect of the fire detection fan 1. After the fire detection fan 1 runs for a long time, the annular air distribution pipe 7 can be moved manually, and the blowing effect is enhanced.
Of course, the above description is not limited to the above examples, and technical features of the present invention that are not described in the present application may be implemented by or using the prior art, and are not described herein again; the above embodiments and drawings are only used for illustrating the technical solutions of the present invention and are not intended to limit the present invention, and the present invention has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that changes, modifications, additions or substitutions made by those skilled in the art within the spirit of the present invention should also belong to the protection scope of the claims of the present invention.
Claims (4)
1. Wind air supply device is examined to thermal power unit fire, its characterized in that: the fire detection fan comprises an air outlet and an air inlet, wherein the air outlet is connected with an air supply main pipe, the air supply main pipe is connected with a first valve switch, and the air inlet is sleeved with an air inlet mesh enclosure; a dustproof cylinder is covered outside the air inlet mesh enclosure and is fixedly connected with the shell of the fire detection fan; the annular air distribution pipe is positioned between the dust-proof cylinder and the air inlet mesh enclosure, the annular air distribution pipe is connected with the dust-proof cylinder through a sliding mechanism, and the sliding direction of the annular air distribution pipe is in the axial direction of the dust-proof cylinder; the pipe wall of the annular air distribution pipe is uniformly provided with air exhaust holes, the air supply direction of the air exhaust holes faces to the air inlet mesh enclosure, and the annular air distribution pipe is connected with the air supply main pipe through an air supply hose.
2. The thermal power generating unit fire detecting wind supply device according to claim 1, characterized in that: the second valve switch is connected to the air supply hose.
3. The thermal power generating unit fire detecting wind supply device according to claim 2, characterized in that: the sliding mechanism comprises two sliding chutes axially arranged along the dust-proof cylinder, a sliding block is connected in each sliding chute in a sliding manner, the two sliding chutes are both arranged on the inner wall of the dust-proof cylinder, the mounting positions of the two sliding chutes are opposite, and the directions of the notches are opposite; two sliders are fixedly connected with the annular air distribution pipe.
4. The thermal power generating unit fire detecting wind supply device according to claim 3, characterized in that: the annular air distribution pipe is fixedly connected with a push rod, and the push rod extends out of the dustproof barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022143346.0U CN213453716U (en) | 2020-09-27 | 2020-09-27 | Fire detection air supply device of thermal power generating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022143346.0U CN213453716U (en) | 2020-09-27 | 2020-09-27 | Fire detection air supply device of thermal power generating unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213453716U true CN213453716U (en) | 2021-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022143346.0U Active CN213453716U (en) | 2020-09-27 | 2020-09-27 | Fire detection air supply device of thermal power generating unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213453716U (en) |
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2020
- 2020-09-27 CN CN202022143346.0U patent/CN213453716U/en active Active
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