CN205807379U - A kind of steam boiler system - Google Patents
A kind of steam boiler system Download PDFInfo
- Publication number
- CN205807379U CN205807379U CN201620737795.9U CN201620737795U CN205807379U CN 205807379 U CN205807379 U CN 205807379U CN 201620737795 U CN201620737795 U CN 201620737795U CN 205807379 U CN205807379 U CN 205807379U
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- CN
- China
- Prior art keywords
- burner hearth
- air
- boiler
- steam
- air preheater
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
This utility model relates to a kind of steam boiler system, including drum, burner hearth, the fire grate being arranged in burner hearth, fortune coal measures system, overfire air fan, economizer, aerator, feed pump, air-introduced machine, flue and air preheater；Described fortune coal measures system is connected with burner hearth, provides fuel for burner hearth；Described fire grate is for being controlled the fuel quantity carrying out burner hearth；Described burner hearth is connected with drum, and the fuel combustion in burner hearth is drum heating；Described economizer is connected with drum；Described economizer is connected with air preheater；Described aerator is connected with air preheater；Described air-introduced machine is connected with air preheater through flue, and the wind of air-introduced machine conveying is sent to inside burner hearth；Described overfire air fan is connected with air preheater, and the wind of overfire air fan conveying enters into inside burner hearth.This utility model simple in construction, easy to operate；Environmental protection, life-span length, maintenance are simply；One application scenario is many, applied widely, economical and practical, environmental protection and energy saving, fully automatic operation, it is not necessary to personal management.
Description
Technical field
This utility model relates to a kind of steam boiler system.
Background technology
The appearance of boiler and development have one phase of the longest and very long history.In the sixties in last century, people control pot
The mode of the operation of stove is all by the mode of Non-follow control.According to the duty of boiler, by changing the aperture of valve thus
Control steam water-level within the scope of technique allows.During manual control boiler operatiopn, people have accumulated substantial amounts of
Experience, the accumulation of these practical operating experiences, is all the lesson drawn after each fault even accident, and this also stays
The invaluable experience with outstanding reference value to we descendant.
Last century 70, the eighties, the appearance of blind controller system improves the situation of manual control boiler operatiopn in early days,
Liberate the productivity of people the most greatly.People are also without having gone those high-risk operations in person.
In the power-equipment of current domestic many factories, requisite parts remain boiler.Due to reasons such as funds
Limit, the most still be traditional instrument control system, the operation of system and regulation and control remain dependence work people
The experience of member.Although nowadays there is the instrument that a lot of function is the most perfect can tentatively realize automatically controlling of boiler, but its
Price is relatively expensive, and the ability relative deficiency of management and control, these shortcomings define its range of application the most greatly.
The control system of present domestic coal-fired steam boiler has had a lot of optimization, but reasonable control thinking
And few, the drawbacks such as control system the most also dissipates concussion, less economical.Can see according to the gap that domestic and international technology develops
Going out, the control technology of domestic coal-fired steam boiler is compared to abroad having sizable gap all the time.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of steam boiler system.
For reaching above-mentioned purpose, this utility model provides following technical scheme: a kind of steam boiler system, including drum,
Burner hearth, the fire grate being arranged in burner hearth, fortune coal measures system, overfire air fan, economizer, aerator, feed pump, air-introduced machine, cigarette
Road and air preheater；Described fortune coal measures system is connected with burner hearth, provides fuel for burner hearth；Described fire grate is for carrying out stove
The fuel quantity of thorax is controlled；Described burner hearth is connected with drum, and the fuel combustion in burner hearth is drum heating；Described economizer with
Drum connects, and the water that feed pump is sent into preheat through economizer, is then re-fed into drum；Described economizer is pre-with air
Hot device connects, for heating for air preheater；Described aerator is connected with air preheater, and the wind of aerator conveying is through air
It is re-fed into inside burner hearth after preheater；Described air-introduced machine is connected with air preheater through flue, and the wind of air-introduced machine conveying is through sky
It is re-fed into inside burner hearth after air preheater；Described overfire air fan is connected with air preheater, and the wind of overfire air fan conveying is through sky
It is re-fed into inside burner hearth after air preheater.
Further, the pipeline connecting feed pump and economizer is provided with water-supply valve.
Further, the pipeline connecting air-introduced machine and flue is provided with citation damper.
Further, the pipeline connecting aerator and air preheater is provided with air blast valve.
Further, the steam output pipe of drum is provided with desuperheat hydrophone.
Further, also include that steam water-level adjusting means, described steam water-level adjusting means include:
Level sensor, is separately mounted to boiler-steam dome both sides, for detecting the water level of boiler-steam dome both sides and sending water
Position signal；
Regulation door, is separately mounted on the outlet conduit of boiler water circulating pump, for regulating the recirculated water of boiler-steam dome both sides
Flow；
Controller, is connected with the control end of described level sensor and described regulation door, for according to from described water level
The water level signal of sensor controls the aperture circulating water flow with regulation boiler-steam dome both sides of described regulation door, to ensure boiler
The water level deviation of drum both sides is in threshold range.
The beneficial effects of the utility model are:
This utility model simple in construction, easy to operate；Environmental protection, life-span length, maintenance are simply；One application scenario is many, be suitable for model
Enclose wide, economical and practical, environmental protection and energy saving, fully automatic operation, it is not necessary to personal management.
Accompanying drawing explanation
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing to this practicality
Novel it is described in further detail, wherein:
Fig. 1 is structure diagram of the present utility model；
Fig. 2 is the sketch of steam water-level adjusting means；
Fig. 3 is the circuit diagram of current foldback circuit.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail.
A kind of steam boiler system, including: drum 1, burner hearth 2, the fire grate 3 being arranged in burner hearth, fortune coal measures system 4,
Overfire air fan 5, economizer 6, aerator 7, feed pump 8, air-introduced machine 9, flue 12 and air preheater 14；Described fortune coal measures system with
Burner hearth connects, and provides fuel for burner hearth；Described fire grate is for being controlled the fuel quantity carrying out burner hearth；Described burner hearth with
Drum connects, and the fuel combustion in burner hearth is drum heating；Described economizer is connected with drum, and the water that feed pump is sent into pass through
Economizer preheats, and is then re-fed into drum；Described economizer is connected with air preheater, for adding for air preheater
Heat；Described aerator is connected with air preheater, and the wind of aerator conveying is re-fed into inside burner hearth after air preheater；Institute
Stating air-introduced machine to be connected with air preheater through flue, the wind of air-introduced machine conveying is re-fed into inside burner hearth after air preheater；
Described overfire air fan is connected with air preheater, and the wind of overfire air fan conveying is re-fed into inside burner hearth after air preheater.
It is provided with water-supply valve 13 on the feed pump pipeline with economizer connecting；Connecting on the air-introduced machine pipeline with flue
It is provided with citation damper 11；It is provided with air blast valve 10 on the aerator pipeline with air preheater connecting；Defeated at the steam of drum
Go out to be provided with on pipeline desuperheat hydrophone.
A kind of steam boiler system also includes that steam water-level adjusting means, described steam water-level adjusting means include:
Level sensor, is separately mounted to boiler-steam dome both sides, for detecting the water level of boiler-steam dome both sides and sending water
Position signal；
Regulation door, is separately mounted on the outlet conduit of boiler water circulating pump, for regulating the recirculated water of boiler-steam dome both sides
Flow；
Controller, is connected with the control end of described level sensor and described regulation door, for according to from described water level
The water level signal of sensor controls the aperture circulating water flow with regulation boiler-steam dome both sides of described regulation door, to ensure boiler
The water level deviation of drum both sides is in threshold range.
Boiler-steam dome both sides are respectively provided with level sensor, for the water level of detection boiler-steam dome both sides in real time, and will
The water level signal detected sends controller to.Regulation door is respectively arranged on the outlet conduit of boiler water circulating pump, because boiler
Drum both sides water level deviation is caused by boiler water circulating pump flow deviation, it is possible to by the flow of boiler water adjustment circulating pump
Reach to control the purpose of boiler-steam dome both sides water level.
Can pre-set the boiler-steam dome energy both sides water level deviation threshold that can allow in controller, controller is according to pre-
The program first arranged, the water level signal each transmitted according to both sides level sensor judges current both sides water level deviation, and will
This deviation compares with the threshold value pre-set, and the deviation occurred when the boiler-steam dome both sides water level detected exceeds this threshold value
Time, the aperture of controller control and regulation door is to regulate the circulating water flow of boiler-steam dome both sides, to ensure boiler-steam dome both sides
Water level deviation is in threshold range.Therefore, it can the aperture by control and regulation door to cause the recirculated water of boiler-steam dome both sides
Changes in flow rate, so that boiler-steam dome both sides water level is balanced, it is ensured that the water level deviation of boiler-steam dome both sides is at threshold value model
In enclosing.
Described threshold range can be configured according to the needs of practical situation, it is preferable that can be set by this threshold range
It is set to-50mm to+50mm.Therefore, when both sides water level deviation is outside this threshold range, the aperture of controller control and regulation door
Thus causing the circulating water flow of boiler-steam dome both sides to change, it is ensured that the water level deviation of boiler-steam dome both sides comes back to this threshold value
In the range of.
But, rely solely on regulation door to regulate the most problematic existence of water level of boiler-steam dome both sides.When regulating door and damaging,
Cannot be by regulation door regulation boiler-steam dome both sides water level.Therefore to ensure the safe operation of facility, under preferable case, described
Boiler water circulating pump is governor impeller.Use governor impeller can continue regulation boiler-steam dome when regulating door and damaging by this governor impeller
Both sides water level, in order to staff changes regulation door in time.
The boiler-steam dome both sides water level deviation adjusting device provided by this utility model, can be detected by level sensor
The water level of boiler-steam dome both sides also sends water level signal to controller, can pre-set the pot that can allow in the controller
Stove drum energy both sides water level deviation threshold, when the deviation that the boiler-steam dome both sides water level detected occurs is beyond this threshold value, by
Controller controls the aperture of the regulation door being arranged on the outlet conduit of boiler water circulating pump, with to boiler both sides drum circulating water flow
Amount is adjusted, thus eliminates boiler-steam dome both sides water level deviation.Boiler-steam dome both sides water level deviation thus can be avoided vapour
The adverse effect that the protection setting of bag water level produces, prevents from causing the malfunction of Steam Drum Water-level Protection or tripping, for the safety of boiler
Operation provides safeguard.
As to improvement of the present utility model, this utility model is additionally provided with current foldback circuit, current foldback circuit bag
Include sample circuit, signal amplification circuit, voltage comparator circuit and the driving power-down circuit being sequentially connected with, described driving power-down circuit
For controlling the break-make of load, load is sampled and the signal after sampling is input to signal and amplifies electricity by described sample circuit
Road is amplified processing.
Described sample circuit includes resistance R1, sample resistance R9, diode D1 and electric capacity C1, described signal amplification circuit bag
Including voltage comparator U1A, resistance R6 and resistance R7, described voltage comparator circuit includes voltage comparator U1B, resistance R5, resistance
R8 and resistance R3, described driving power-down circuit includes audion Q2, resistance R4, audion Q1 and relay,
Described sample resistance R9 and load in series, sample resistance R9 connects with resistance R1, one end of resistance R1 and sampling electricity
One end of resistance R9 connects, and the other end of resistance R1 is connected with the negative pole of diode D1, the plus earth of diode D1, described electric capacity
C1 is in parallel with diode D1.The positive input of described voltage comparator U1A is connected with the negative pole of diode D1, voltage comparator
The reverse input end of U1A is connected with the reverse input end of voltage comparator U1A through resistance R7 ground connection, one end of resistance R6, resistance
The outfan of another termination voltage comparator U1A of R6 connects.The positive input of voltage comparator U1B and voltage comparator
The outfan of U1A connects, the reverse input end of voltage comparator U1B through resistance R8 ground connection, a termination power of resistance R5, another
End is connected with the reverse input end of voltage comparator U1B, and the outfan of voltage comparator U1B is connected with resistance R3.Described three poles
The base stage of pipe Q2 is connected with resistance R3, the grounded emitter of audion Q2, and the colelctor electrode of audion Q2 is through resistance R4 and audion
The base stage of Q1 connects, and the emitter stage of audion Q1 connects input power, and the colelctor electrode of three these Q1 of pole is through relay coil ground connection, three poles
The emitter stage of pipe Q1 meets load RL, load RL and is connected with sample resistance R9 through relay.
System power supply input from the rightmost side, through overload RL, then stays over-sampling resistance R9, because RL and sampling resistor
R9 is series connection, so the electric current flowing through them is identical, sampling resistor R9 is exactly that the electric current to load RL is sampled, so
The voltage that post-sampling resistance R9 sampling obtains enters voltage comparator U1A ratio-voltage comparator in the same direction, is just due to enter
End, so output is the voltage after amplifying, subsequently into voltage comparator U1B, the voltage that can bear with system is carried out
Relatively, the voltage that can bear if above system, voltage comparator U1B will export a high level, and this high level is
Arrive the total radio amplifier that audion Q2 and audion Q1 collectively constitutes afterwards to be amplified, and then made relay coil be energized,
Thus control rightmost relay switch and disconnect, thus complete to cut off the action of circuit.
In figure, resistance R6 and resistance R7 is used to regulate the amplification of ratio-voltage comparator U1A in the same direction, and resistance R1
Being to protect signal voltage comparator with Zener diode D1, electric capacity C1 mainly prevents impulse disturbances.And by control
Resistance R5 processed and resistance R8 can arrange different comparison voltage to voltage comparator.
Finally illustrating, preferred embodiment above is only in order to illustrate the technical solution of the utility model and unrestricted, to the greatest extent
This utility model is described in detail by pipe by above preferred embodiment, but those skilled in the art should manage
Solve, in the form and details it can be made various change, without departing from this utility model claims institute
The scope limited.
Claims (6)
1. a steam boiler system, it is characterised in that: include drum, burner hearth, the fire grate being arranged in burner hearth, fortune coal measures
System, overfire air fan, economizer, aerator, feed pump, air-introduced machine, flue and air preheater；
Described fortune coal measures system is connected with burner hearth, provides fuel for burner hearth；Described fire grate is for the fuel quantity carrying out burner hearth
It is controlled；Described burner hearth is connected with drum, and the fuel combustion in burner hearth is drum heating；
Described economizer is connected with drum, and the water that feed pump is sent into preheat through economizer, is then re-fed into drum；
Described economizer is connected with air preheater, for heating for air preheater；
Described aerator is connected with air preheater, and the wind of aerator conveying is re-fed into inside burner hearth after air preheater；
Described air-introduced machine is connected with air preheater through flue, and the wind of air-introduced machine conveying is re-fed into burner hearth after air preheater
Internal；
Described overfire air fan is connected with air preheater, and the wind of overfire air fan conveying is re-fed in burner hearth after air preheater
Portion.
Steam boiler system the most according to claim 1, it is characterised in that: connecting on the feed pump pipeline with economizer
It is provided with water-supply valve.
Steam boiler system the most according to claim 1, it is characterised in that: set on the pipeline of flue connecting air-introduced machine
It is equipped with citation damper.
Steam boiler system the most according to claim 1, it is characterised in that: at the pipe connecting aerator and air preheater
Air blast valve it is provided with on road.
Steam boiler system the most according to claim 1, it is characterised in that: it is provided with on the steam output pipe of drum
Desuperheat hydrophone.
Steam boiler system the most according to claim 1, it is characterised in that: also include steam water-level adjusting means, described
Steam water-level adjusting means includes:
Level sensor, is separately mounted to boiler-steam dome both sides, for detecting the water level of boiler-steam dome both sides and sending water level letter
Number；
Regulation door, is separately mounted on the outlet conduit of boiler water circulating pump, for regulating the circulating water flow of boiler-steam dome both sides；
Controller, is connected with the control end of described level sensor and described regulation door, for according to from described level sensor
The water level signal of device controls the aperture circulating water flow with regulation boiler-steam dome both sides of described regulation door, to ensure boiler-steam dome
The water level deviation of both sides is in threshold range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620737795.9U CN205807379U (en) | 2016-07-14 | 2016-07-14 | A kind of steam boiler system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620737795.9U CN205807379U (en) | 2016-07-14 | 2016-07-14 | A kind of steam boiler system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205807379U true CN205807379U (en) | 2016-12-14 |
Family
ID=57510946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620737795.9U Expired - Fee Related CN205807379U (en) | 2016-07-14 | 2016-07-14 | A kind of steam boiler system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205807379U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113137766A (en) * | 2021-04-22 | 2021-07-20 | 江西江右净达热能科技有限公司 | Boiler automation control system |
-
2016
- 2016-07-14 CN CN201620737795.9U patent/CN205807379U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113137766A (en) * | 2021-04-22 | 2021-07-20 | 江西江右净达热能科技有限公司 | Boiler automation control system |
| CN113137766B (en) * | 2021-04-22 | 2022-08-16 | 江西江右净达热能科技有限公司 | Boiler automation control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161214 Termination date: 20170714 |