CN207006223U - Flame detecting probe protection device - Google Patents
Flame detecting probe protection device Download PDFInfo
- Publication number
- CN207006223U CN207006223U CN201720860781.0U CN201720860781U CN207006223U CN 207006223 U CN207006223 U CN 207006223U CN 201720860781 U CN201720860781 U CN 201720860781U CN 207006223 U CN207006223 U CN 207006223U
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- China
- Prior art keywords
- detecting probe
- primary air
- air fan
- protection device
- fire detecting
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Abstract
Thermal power generating technology field is the utility model is related to, more particularly to a kind of flame detecting probe protection device, including：Primary air fan, fire detecting probe cooling machine, reversible deflector, pressure sensing cell and boiler combustion protection system.Primary air fan protects system to be connected by the reversible deflector with boiler combustion；Fire detecting probe cooling machine is connected by reversible deflector with burning protection system.Pressure sensing cell is arranged on the pipeline between reversible deflector and boiler combustion protection system, or the pressure sensing cell is arranged on the pipeline between reversible deflector and primary air fan.Flame detecting probe protection device provided by the utility model, the two-way protection to fire detecting probe cooling source is realized, avoids fire detecting probe cooling machine from causing unit tripping accident after breaking down, ensure that the normal operation of generating set.
Description
Technical field
Thermal power generating technology field is the utility model is related to, more particularly to a kind of flame detecting probe protection device.
Background technology
In large electric power plant Thermal generation unit boiler, fuel transport is carried out by primary air fan, primary air pressure is reachable
12Kpa, air quantity is up to 212040m3/h.Boiler combustion protection system in generating set is typically separately provided flame detecting probe cooling
Blower fan, fire detecting probe cooling machine blast is 8.2Kpa, air quantity 1259m3/ h, protect system to provide fire inspection for boiler combustion and visit
Head cooling wind.At present, the operating safety coefficient of fire detecting probe cooling is relatively low, is blown using fire detecting probe cooling machine single channel
After failure, easily because fire detecting probe cooling lose caused by unit tripping accident generation.
Utility model content
The utility model solves fire detecting probe cooling in the prior art by providing a kind of flame detecting probe protection device
The relatively low technical problem of operating safety coefficient, fire detecting probe cooling machine is avoided to cause unit tripping thing after breaking down
Therefore it ensure that the normal operation of generating set.
The utility model provides a kind of flame detecting probe protection device, including：Primary air fan, fire detecting probe cooling machine,
Reversible deflector, pressure sensing cell and boiler combustion protection system；
The primary air fan protects system to be connected by the reversible deflector with the boiler combustion；
The fire detecting probe cooling machine is connected by the reversible deflector with the burning protection system；
The pressure sensing cell is arranged on the pipeline between the reversible deflector and the boiler combustion protection system,
Or the pressure sensing cell is arranged on the pipeline between the reversible deflector and the primary air fan.
Further, in addition to：Stop valve；The primary air fan is connected by the stop valve with the reversible deflector.
Further, the stop valve is hand stop valve.
Further, in addition to：First communicating door；The primary air fan at least two；Multiple primary air fans
Output end is connected by first communicating door.
Further, in addition to：Second communicating door；The fire detecting probe cooling machine at least two；Multiple fire
The output end of inspection probe cooling blower is connected by second communicating door.
One or more technical schemes provided by the utility model, at least possess following beneficial effect or advantage：
Flame detecting probe protection device provided by the utility model, primary air fan and fire detecting probe cooling machine and boiler combustion
Protection system connects.For thermoelectricity Thermal generation unit in normal operation, the fire detecting probe cooling source of system is protected in boiler combustion
There is provided by primary air fan.The pressure condition in fire detecting probe cooling source is monitored by pressure sensing cell, is led to when pressure decreases
Overprotection flogic system connection opens fire detecting probe cooling machine, and the fire detecting probe cooling source of boiler combustion protection system is by First air
Machine and fire detecting probe cooling machine provide simultaneously, realize the two-way protection to fire detecting probe cooling source, avoid flame detecting probe cold
But blower fan causes unit tripping accident after breaking down, and ensure that the normal operation of generating set.
Brief description of the drawings
Fig. 1 is the flame detecting probe protection device structural representation that the utility model embodiment provides.
Embodiment
The utility model embodiment solves flame detecting probe in the prior art by providing a kind of flame detecting probe protection device
The relatively low technical problem of the operating safety coefficient of wind is cooled down, avoids fire detecting probe cooling machine from causing generator after breaking down
Group trip accident, ensure that the normal operation of generating set.
The utility model embodiment is in order to solve the above technical problems, general thought is as follows：
Referring to Fig. 1, in the process of running, the flame detecting probe of boiler combustion protection system 1 cools down thermoelectricity Thermal generation unit
Wind regime is provided by primary air fan 3, by monitoring the pressure condition in fire detecting probe cooling source, is patrolled when pressure decreases by protection
Volume system connection opens fire detecting probe cooling machine 2, the fire detecting probe cooling source of boiler combustion protection system 1 by primary air fan 3 and
Fire detecting probe cooling machine 2 provides simultaneously, protects the flame detecting probe of system 1 to realize that two-way is protected to boiler combustion.
In order to be better understood from above-mentioned technical proposal, fire provided by the utility model is examined with reference to specific embodiment
Probe-protecting device illustrates：
Referring to Fig. 1, a kind of flame detecting probe protection device is present embodiments provided, including：Primary air fan 3, flame detecting probe are cold
But blower fan 2, reversible deflector 4, pressure sensing cell 5, boiler combustion protection system 1, stop valve 6.The blast of primary air fan 3 is
12Kpa, air quantity 212040m3/ h, primary air fan 3 are mainly used in conveying fuel, primary air fan 3 for thermoelectricity Thermal generation unit
It is connected by stop valve 6 with reversible deflector 4, reversible deflector 4 is connected with boiler combustion protection system 1, the cooling wind of primary air fan 3
Surplus is delivered to boiler combustion protection system 1 and is used to cool down flame detecting probe.Fire detecting probe cooling machine 2 by reversible deflector 4 with
Boiler combustion protection system 1 connects, and fire detecting probe cooling machine 2 is the standby cooling wind regime of flame detecting probe.Pressure sensing cell 5
It is arranged on the pipeline between reversible deflector 4 and boiler combustion protection system 1, pressure sensing cell 5 is used in signal piping
Atmospheric pressure value；Specifically, pressure sensor can use barometer.
As a kind of preferred embodiment, pressure sensing cell 5 is arranged on the pipe between reversible deflector 4 and primary air fan 3
Lu Shang.
As a kind of preferred embodiment, the flame detecting probe protection device that the present embodiment provides also includes：First communicating door
7.Primary air fan 3 at least two, the present embodiment use two primary air fans 3, and the output end of two primary air fans 3 passes through first
Communicating door 7 connects.
As a kind of preferred embodiment, the flame detecting probe protection device that the present embodiment provides also includes：Second communicating door
8；Fire detecting probe cooling machine 2 at least two, the present embodiment use two fire detecting probe cooling machines 2, two flame detecting probes
The output end of cooling blower 2 is connected by the second communicating door 8.
The flame detecting probe protection device course of work that the utility model embodiment provides is as follows：Referring to Fig. 1, in practical application
It is middle by the external relay protective scheme system of pressure sensing cell 5.In the process of running, boiler combustion protection is thermoelectricity Thermal generation unit
The fire detecting probe cooling source of system 1 is provided by primary air fan 3.When pressure sensing cell 5 monitors the pressure in fire detecting probe cooling source
When power is too low, fire detecting probe cooling machine 2 is opened by relay protective scheme system connection, reversible deflector 4 turns on flame detecting probe cooling automatically
Pipeline between blower fan 2 and boiler combustion protection system 1, the fire detecting probe cooling source of boiler combustion protection system 1 is by once
Blower fan 3 and fire detecting probe cooling machine 2 provide simultaneously, realize the two-way protection to fire detecting probe cooling source.
One or more technical schemes that the utility model embodiment provides, at least possess following beneficial effect or advantage：
The flame detecting probe protection device that the utility model embodiment provides, primary air fan and fire detecting probe cooling machine and pot
Stove burning protection system connection.For thermoelectricity Thermal generation unit in normal operation, the flame detecting probe of boiler combustion protection system is cold
But wind regime is provided by primary air fan.The pressure condition in fire detecting probe cooling source is monitored by pressure sensing cell, works as pressure drop
Fire detecting probe cooling machine is opened by relay protective scheme system connection when low, the fire detecting probe cooling source of boiler combustion protection system by
Primary air fan and fire detecting probe cooling machine provide simultaneously, realize the two-way protection to fire detecting probe cooling source, avoid fiery inspection
Probe cooling blower causes unit tripping accident after breaking down, and ensure that the normal operation of generating set.
It should be noted last that above embodiment is only illustrating the technical solution of the utility model rather than limit
System, although the utility model is described in detail with reference to example, it will be understood by those within the art that, can be right
The technical solution of the utility model is modified or equivalent substitution, without departing from the spirit and model of technical solutions of the utility model
Enclose, it all should cover among right of the present utility model.
Claims (5)
- A kind of 1. flame detecting probe protection device, it is characterised in that including：Primary air fan, fire detecting probe cooling machine, commutation gear Plate, pressure sensing cell and boiler combustion protection system；The primary air fan protects system to be connected by the reversible deflector with the boiler combustion；The fire detecting probe cooling machine is connected by the reversible deflector with the burning protection system；The pressure sensing cell is arranged on the pipeline between the reversible deflector and the boiler combustion protection system, or institute State on the pipeline that pressure sensing cell is arranged between the reversible deflector and the primary air fan.
- 2. flame detecting probe protection device as claimed in claim 1, it is characterised in that also include：Stop valve；The primary air fan It is connected by the stop valve with the reversible deflector.
- 3. flame detecting probe protection device as claimed in claim 2, it is characterised in that the stop valve is hand stop valve.
- 4. the flame detecting probe protection device as described in claim any one of 1-3, it is characterised in that also include：First communicating door； The primary air fan at least two；The output end of multiple primary air fans is connected by first communicating door.
- 5. the flame detecting probe protection device as described in claim any one of 1-3, it is characterised in that also include：Second communicating door； The fire detecting probe cooling machine at least two；The output end of multiple fire detecting probe cooling machines connects by described second Open gate connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720860781.0U CN207006223U (en) | 2017-07-14 | 2017-07-14 | Flame detecting probe protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720860781.0U CN207006223U (en) | 2017-07-14 | 2017-07-14 | Flame detecting probe protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207006223U true CN207006223U (en) | 2018-02-13 |
Family
ID=61454654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720860781.0U Active CN207006223U (en) | 2017-07-14 | 2017-07-14 | Flame detecting probe protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207006223U (en) |
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2017
- 2017-07-14 CN CN201720860781.0U patent/CN207006223U/en active Active
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