CN107448970A - Boiler room - Google Patents
Boiler room Download PDFInfo
- Publication number
- CN107448970A CN107448970A CN201710690508.2A CN201710690508A CN107448970A CN 107448970 A CN107448970 A CN 107448970A CN 201710690508 A CN201710690508 A CN 201710690508A CN 107448970 A CN107448970 A CN 107448970A
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- CN
- China
- Prior art keywords
- air
- boiler
- air channel
- substations
- regulating system
- 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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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/26—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N3/00—Regulating air supply or draught
- F23N3/007—Regulating air supply or draught using mechanical means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The invention provides a kind of boiler room,It is related to heating system equipment technology field,Including boiler,First regulating system,Second regulating system and control system,First regulating system and the second regulating system are connected with control system respectively,First regulating system includes air preheater,Volume adjusting apparatus and temperature sensing device,Boiler includes boiler body and air compartment,Air compartment is arranged in boiler body,Air channel is provided between air preheater and boiler body,Air channel is connected with air compartment,Volume adjusting apparatus and temperature sensing device are arranged in air channel close to air compartment one end,Volume adjusting apparatus includes driving executing agency and the air door being connected with driving executing agency,Air door is arranged at air channel close to air compartment side,Driving executing agency driving air door is opened or closed with respect to air channel to adjust the air quantity into air compartment,Local wind rate when coal changes is adapted to change when with heating demand changing to the changes in demand of each local wind rate.
Description
Technical field
The present invention relates to heating system equipment technology field, more particularly, to a kind of boiler room.
Background technology
At present, due to combustion phases and combustion on fire grate length direction in most of traveling-grate stoker coal-burning boiler supply air systems
It is different to burn intensity, the required air quantity that burns is also different, and the air blower that existing boiler supply air system uses uses variable frequency adjustment wind
Amount, using regulation, or according to operating experience that the aperture of these branch's air doors is fixed manually at branch's air door, it is impossible to suitable
The local change of air quantity when answering the coal to change, coal is easily caused to be unable to the problems such as completely burned, efficiency of combustion be low.
The content of the invention
It is an object of the invention to provide a kind of boiler room, the device includes adjusting means, increases on each air door and drives
Dynamic executing agency, driving executing agency are connected with control system, to realize to each air door from minimum to the gamut of maximum
Aperture continuously adjust, temperature sensing device monitoring boiler whole burner hearth in temperature distribution, pass through control system realize pair
Burning regulation during different thermic loads.
The following technical scheme is adopted to achieve the purpose of the present invention.
Boiler room provided by the invention, including boiler, the first regulating system, the second regulating system and control system；
First regulating system and second regulating system are connected with the control system respectively；
First regulating system is connected with the boiler；
First regulating system includes air preheater, volume adjusting apparatus and temperature sensing device；
The boiler includes deliver coal device, boiler body, fire grate and air compartment；
The device of delivering coal is connected with the boiler body, and the fire grate is arranged in the boiler body, the air compartment
It is arranged in the boiler body and below the fire grate；
Air channel is provided between the air preheater and the boiler body, the air channel is connected with the air compartment；
The volume adjusting apparatus and the temperature sensing device are arranged in the air channel close to described air compartment one end, institute
Volume adjusting apparatus is stated with the control system to be connected；
The temperature sensing device is connected with the control system to monitor the working condition of boiler；
The volume adjusting apparatus includes driving executing agency and the air door being connected with the driving executing agency, described
Air door is arranged at the air channel and drives the relatively described air channel of air door to beat close to the air compartment side, the driving executing agency
On or off is closed to adjust the air quantity into the air compartment.
In any of the above-described technical scheme, it is preferred that the air channel includes the first air channel and the second air channel, first wind
Road and second air channel are arranged on the both sides of the boiler body；
Multiple branch air channels, each branch air channel court are respectively arranged with first air channel and second air channel
Described air compartment one end is provided with volume adjusting apparatus and temperature sensing device；
The temperature sensing device is arranged at the top in the branch air channel.
In the technical scheme, air channel includes the first air channel and the second air channel, and the first air channel and the second air channel are arranged on pot
The both sides of furnace body, while air is conveyed into boiler body, make the entrance of air more uniform, be advantageous to the abundant combustion of fire coal
Burn.
In any of the above-described technical scheme, it is preferred that the direction entered along wind, each branch air channel and described first
Air channel and each branch air channel are less than or equal to right angle with the second air channel institute angle degree.
In the technical scheme, the direction that enters along wind, each branch air channel and the first air channel and each branch air channel with
Second air channel institute angle degree is less than or equal to right angle, reduces wind in course of conveying, and air channel tube wall improves to the barrier force of wind
Overall efficiency of combustion.
In any of the above-described technical scheme, it is preferred that also including desulfation dust-extraction device and chimney, set on the boiler body
Exhanst gas outlet is equipped with, the desulfation dust-extraction device is connected with the exhanst gas outlet and the chimney respectively.
In the technical scheme, the excessively caused flue gas of fired coal combustion enters in desulfation dust-extraction device via exhanst gas outlet,
Carry out multiple filtration and flue gas is reached the standard of exclusion to enter in chimney and drain into air, being reduced by desulfation dust-extraction device
Pollution of the flue gas to environment.
In any of the above-described technical scheme, it is preferred that second regulating system includes air blower and air-introduced machine；
The air blower is connected with the air preheater；
The air-introduced machine is arranged between the chimney and the desulfation dust-extraction device.
In the technical scheme, while ensureing that boiler combustion can fully provide heat supply heat and heating demands, also
Ensure the economic performance of safe operation and the fuel combustion of boiler, it is necessary to regulate and control air output and air inducing numerical quantity, air output and
Absorbing quantity is controlled by air blower and air-introduced machine respectively, and air blower and air-introduced machine are connected with control respectively, according to different heat supplies
Heat, coal-supplying amount, the size of air output and absorbing quantity is adjusted, realize the reasonable utilization of resource to greatest extent, reduce resource wave
Take.
In any of the above-described technical scheme, it is preferred that the driving executing agency is connected with the air door by ball-type hinge
Connect.
In the technical scheme, increase driving executing agency passes through ball-type hinge and air door regulation handle on each air door
It is connected, driving executing agency is connected with control system, to realize the opening from minimum to the gamut of maximum to each air door
Degree continuously adjusts.
In any of the above-described technical scheme, it is preferred that the control system includes I/O substations, active station and master control station；
The I/O substations and the active station are connected with the master control station respectively；
The I/O substations include the first I/O substations and the 2nd I/O substations；
The first I/O substations are connected with the boiler body, and the first I/O substations are connected with public technique.
In the technical scheme, control system includes I/O substations, active station and master control station, I/O substations and active station point
It is not connected with master control station, I/O substations include the first I/O substations and the 2nd I/O substations, the first I/O substations and boiler body
It is connected, the first I/O substations are connected with public technique, and constantly receiving feedback by the first I/O substations and the 2nd I/O substations should
The operation conditions of device is to adjust parameter preset.
In any of the above-described technical scheme, it is preferred that the active station includes the first active station and the second active station；
First active station is connected with the boiler, and second active station is connected with public technique.
In the technical scheme, staff is by the first active station and the second active station to boiler body and public technique
Carry out numerical value regulation or operation.
In any of the above-described technical scheme, it is preferred that also including uninterrupted power source, the uninterrupted power source and described first
I/O substations, the 2nd I/O substations, first active station are connected with second active station.
In the technical scheme, when civil power input is normal, uninterrupted power source will be supplied to load to use after civil power voltage stabilizing,
Uninterrupted power source now is an electric main voltage-stablizer, while it also charges to self-contained battery, and when commercial power interruption, (accident is stopped
Electricity) when, immediately by the electric energy of self-contained battery, the square normal load changed by inversion continues to supply 220V exchanges uninterrupted power source
Electricity, load is maintained normal work and protect that load soft and hardware is without damage, and uninterrupted power source is generally excessive to voltage and voltage
It is too low that protection is all provided, ensure that a period of time that worked on after having a power failure allows the user to promptly deposit, make user will not
Work is influenceed because of power failure or loses data.
In any of the above-described technical scheme, it is preferred that the device of delivering coal is connected by motor with the control system.
In the technical scheme, device of delivering coal is connected with motor, the size of control conveying coal amount, fire coal is fully fired
Burn.
The invention provides a kind of boiler room, including boiler, the first regulating system, the second regulating system and control system,
First regulating system and the second regulating system are connected with control system respectively, and the first regulating system includes air preheater, wind
Quantity regulating device and temperature sensing device, boiler include boiler body and air compartment, and air compartment is arranged in boiler body, air preheat
Air channel is provided between device and boiler body, air channel is connected with air compartment, and volume adjusting apparatus and temperature sensing device are arranged at
Close to air compartment one end in air channel, volume adjusting apparatus includes driving executing agency and the air door being connected with driving executing agency,
Air door is arranged at air channel and opened or closed close to air compartment side, driving executing agency driving air door with respect to air channel to adjust into inlet air
The air quantity of room, adapt to local wind rate when coal changes and change when changing with heating demand to the demand of each local wind rate
Change.
The additional aspect and advantage of the present invention will become obvious in following description section, or the practice by the present invention
Recognize.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of boiler room provided by the invention；
Fig. 2 is the schematic diagram in the air channel shown in Fig. 1；
Fig. 3 is the schematic diagram in the air channel shown in Fig. 1.
Icon：1- boiler bodies；2- delivers coal device；3- air compartments；4- fire grates；5- air channels；6- desulfation dust-extraction devices；7- chimneys；
8- air blowers；9- air-introduced machines；11- exhanst gas outlets；51- branches air channel.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify description, rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that instruction or hint relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
Hereinafter, the structure based on the brief description of the drawings present invention.
Fig. 1 is the structural representation of boiler room provided by the invention；Fig. 2 is the schematic diagram in the air channel shown in Fig. 1；Fig. 3 is
The schematic diagram in the air channel shown in Fig. 1.
As shown in Figure 1 to Figure 3, the invention provides a kind of boiler room, including boiler, the first regulating system, the second regulation
System and control system；
First regulating system and second regulating system are connected with the control system respectively；
First regulating system is connected with the boiler；
First regulating system includes air preheater, volume adjusting apparatus and temperature sensing device；
The boiler includes deliver coal device 2, boiler body 1, fire grate 4 and air compartment 3；
The device of delivering coal is connected with the boiler body, and the fire grate is arranged in the boiler body, the air compartment
It is arranged in the boiler body and below the fire grate；
Air channel 5 is provided between the air preheater and the boiler body, the air channel is connected with the air compartment；
The volume adjusting apparatus and the temperature sensing device are arranged in the air channel close to described air compartment one end, institute
Volume adjusting apparatus is stated with the control system to be connected；
The temperature sensing device is connected with the control system to monitor the working condition of boiler；
The volume adjusting apparatus includes driving executing agency and the air door being connected with the driving executing agency, described
Air door is arranged at the air channel and drives the relatively described air channel of air door to beat close to the air compartment side, the driving executing agency
On or off is closed to adjust the air quantity into the air compartment.
The invention provides a kind of boiler room, including boiler, the first regulating system, the second regulating system and control system,
First regulating system and the second regulating system are connected with control system respectively, and the first regulating system includes air preheater, wind
Quantity regulating device and temperature sensing device, boiler include boiler body and air compartment, and air compartment is arranged in boiler body, air preheat
Air channel is provided between device and boiler body, air channel is connected with air compartment, and volume adjusting apparatus and temperature sensing device are arranged at
Close to air compartment one end in air channel, volume adjusting apparatus includes driving executing agency and the air door being connected with driving executing agency,
Air door is arranged at air channel and opened or closed close to air compartment side, driving executing agency driving air door with respect to air channel to adjust into inlet air
The air quantity of room, adapt to local wind rate when coal changes and change when changing with heating demand to the demand of each local wind rate
Change.
As shown in figure 1, in one embodiment of the invention, it is preferred that the air channel includes the first air channel and the second wind
Road, first air channel and second air channel are arranged on the both sides of the boiler body；
Multiple branch air channels 51, each branch air channel are respectively arranged with first air channel and second air channel
Described air compartment one end is provided with volume adjusting apparatus and temperature sensing device；
The temperature sensing device is arranged at the top in the branch air channel.
In this embodiment, air channel includes the first air channel and the second air channel, and the first air channel and the second air channel are arranged on boiler
The both sides of body, while air is conveyed into boiler body, make the entrance of air more uniform, be advantageous to the abundant combustion of fire coal
Burn.
As shown in Figures 2 and 3, in one embodiment of the invention, it is preferred that the direction entered along wind, it is each described
Branch air channel is less than or equal to right angle with first air channel and each branch air channel with the second air channel institute angle degree.
In this embodiment, the direction entered along wind, each branch air channel and the first air channel and each branch air channel and the
Two air channel institute angle degree are less than or equal to right angle, reduce wind in course of conveying, air channel tube wall improves to the barrier force of wind
Overall efficiency of combustion.
As shown in figure 1, in one embodiment of the invention, it is preferred that also including desulfation dust-extraction device 6 and chimney 7, institute
State and exhanst gas outlet 11 is provided with boiler body, the desulfation dust-extraction device is connected with the exhanst gas outlet and the chimney respectively
Connect.
In this embodiment, the excessively caused flue gas of fired coal combustion enters in desulfation dust-extraction device via exhanst gas outlet, enters
Row multiple filtration makes flue gas reach the standard of exclusion to enter in chimney and drain into air, cigarette is reduced by desulfation dust-extraction device
Pollution of the gas to environment.
As shown in Figure 1 to Figure 3, in one embodiment of the invention, it is preferred that second regulating system includes air blast
Machine 8 and air-introduced machine 9；
The air blower is connected with the air preheater；
The air-introduced machine is arranged between the chimney and the desulfation dust-extraction device.
In this embodiment, while ensureing that boiler combustion can fully provide heat supply heat and heating demands, also
Ensure the economic performance of safe operation and the fuel combustion of boiler, it is necessary to regulate and control air output and air inducing numerical quantity, air output and draw
Air quantity is controlled by air blower and air-introduced machine respectively, and air blower and air-introduced machine are connected with control respectively, according to different heat supply heat
Amount, coal-supplying amount, the size of air output and absorbing quantity is adjusted, realize the reasonable utilization of resource to greatest extent, reduce the wasting of resources.
In one embodiment of the invention, it is preferred that the driving executing agency passes through ball-type hinge with the air door
Connection.
In this embodiment, increase driving executing agency passes through ball-type hinge and air door regulation handle phase on each air door
Connection, driving executing agency are connected with control system, to realize to each air door from minimum to the aperture of the gamut of maximum
Continuously adjust.
In one embodiment of the invention, it is preferred that the control system includes I/O substations, active station and master control
Stand；
The I/O substations and the active station are connected with the master control station respectively；
The I/O substations include the first I/O substations and the 2nd I/O substations；
The first I/O substations are connected with the boiler body, and the first I/O substations are connected with public technique.
In this embodiment, control system includes I/O substations, active station and master control station, I/O substations and active station difference
It is connected with master control station, I/O substations include the first I/O substations and the 2nd I/O substations, the first I/O substations and boiler body phase
Connection, the first I/O substations are connected with public technique, are constantly received by the first I/O substations and the 2nd I/O substations and feed back the dress
The operation conditions put is to adjust parameter preset.
In one embodiment of the invention, it is preferred that the active station includes the first active station and the second active station；
First active station is connected with the boiler, and second active station is connected with public technique.
In this embodiment, staff is entered by the first active station and the second active station to boiler body and public technique
Line number value adjusts or operation.
In one embodiment of the invention, it is preferred that also including uninterrupted power source, the uninterrupted power source and described the
One I/O substations, the 2nd I/O substations, first active station are connected with second active station.
In this embodiment, when civil power input is normal, uninterrupted power source will be supplied to load to use after civil power voltage stabilizing, this
When uninterrupted power source be an electric main voltage-stablizer, while it also to self-contained battery charge, when commercial power interruption, (accident is stopped
Electricity) when, immediately by the electric energy of self-contained battery, the square normal load changed by inversion continues to supply 220V exchanges uninterrupted power source
Electricity, load is maintained normal work and protect that load soft and hardware is without damage, and uninterrupted power source is generally excessive to voltage and voltage
It is too low that protection is all provided, ensure that a period of time that worked on after having a power failure allows the user to promptly deposit, make user will not
Work is influenceed because of power failure or loses data.
As shown in figure 1, in one embodiment of the invention, it is preferred that the device of delivering coal passes through motor and the control
System is connected.
In this embodiment, device of delivering coal is connected with motor, the size of control conveying coal amount, fire coal is fully fired
Burn.
Boiler room provided by the invention, it can be combined, can equally played above-mentioned by above-mentioned various embodiments
Effect.
The invention provides a kind of boiler room, including boiler, the first regulating system, the second regulating system and control system,
First regulating system and the second regulating system are connected with control system respectively, and the first regulating system includes air preheater, wind
Quantity regulating device and temperature sensing device, boiler include boiler body and air compartment, and air compartment is arranged in boiler body, air preheat
Air channel is provided between device and boiler body, air channel is connected with air compartment, and volume adjusting apparatus and temperature sensing device are arranged at
Close to air compartment one end in air channel, volume adjusting apparatus includes driving executing agency and the air door being connected with driving executing agency,
Air door is arranged at air channel and opened or closed close to air compartment side, driving executing agency driving air door with respect to air channel to adjust into inlet air
The air quantity of room, adapt to local wind rate when coal changes and change when changing with heating demand to the demand of each local wind rate
Change.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of boiler room, it is characterised in that including boiler, the first regulating system, the second regulating system and control system；
First regulating system and second regulating system are connected with the control system respectively；
First regulating system is connected with the boiler；
First regulating system includes air preheater, volume adjusting apparatus and temperature sensing device；
The boiler includes deliver coal device, boiler body, fire grate and air compartment；
The device of delivering coal is connected with the boiler body, and the fire grate is arranged in the boiler body, and the air compartment is set
In in the boiler body and below the fire grate；
Air channel is provided between the air preheater and the boiler body, the air channel is connected with the air compartment；
The volume adjusting apparatus and the temperature sensing device are arranged in the air channel close to described air compartment one end, the wind
Quantity regulating device is connected with the control system；
The temperature sensing device is connected with the control system to monitor the working condition of boiler；
The volume adjusting apparatus includes driving executing agency and the air door being connected with the driving executing agency, the air door
The air channel is arranged at close to the air compartment side, the driving executing agency drive the relatively described air channel of the air door open or
Close to adjust the air quantity into the air compartment.
2. boiler room according to claim 1, it is characterised in that
The air channel includes the first air channel and the second air channel, and first air channel and second air channel are arranged on the boiler sheet
The both sides of body；
It is respectively arranged with multiple branch air channels on first air channel and second air channel, each branch air channel is towards institute
State air compartment one end and be provided with volume adjusting apparatus and temperature sensing device；
The temperature sensing device is arranged at the top in the branch air channel.
3. boiler room according to claim 2, it is characterised in that along wind enter direction, each branch air channel with
First air channel and each branch air channel are less than or equal to right angle with the second air channel institute angle degree.
4. boiler room according to claim 1, it is characterised in that also including desulfation dust-extraction device and chimney, the boiler
Exhanst gas outlet is provided with body, the desulfation dust-extraction device is connected with the exhanst gas outlet and the chimney respectively.
5. boiler room according to claim 4, it is characterised in that second regulating system includes air blower and air inducing
Machine；
The air blower is connected with the air preheater；
The air-introduced machine is arranged between the chimney and the desulfation dust-extraction device.
6. boiler room according to claim 1, it is characterised in that the driving executing agency passes through ball-type with the air door
Hinge connection.
7. boiler room according to claim 1, it is characterised in that the control system includes I/O substations, active station and total
Control station；
The I/O substations and the active station are connected with the master control station respectively；
The I/O substations include the first I/O substations and the 2nd I/O substations；
The first I/O substations are connected with the boiler body, and the first I/O substations are connected with public technique.
8. boiler room according to claim 7, it is characterised in that the active station includes the first active station and the second operation
Stand；
First active station is connected with the boiler, and second active station is connected with public technique.
9. boiler room according to claim 8, it is characterised in that also including uninterrupted power source, the uninterrupted power source with
The first I/O substations, the 2nd I/O substations, first active station are connected with second active station.
10. boiler room according to claim 1, it is characterised in that the device of delivering coal passes through motor and the control system
It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710690508.2A CN107448970A (en) | 2017-08-14 | 2017-08-14 | Boiler room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710690508.2A CN107448970A (en) | 2017-08-14 | 2017-08-14 | Boiler room |
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| Publication Number | Publication Date |
|---|---|
| CN107448970A true CN107448970A (en) | 2017-12-08 |
Family
ID=60492215
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|---|---|---|---|
| CN201710690508.2A Pending CN107448970A (en) | 2017-08-14 | 2017-08-14 | Boiler room |
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| CN205535935U (en) * | 2016-04-06 | 2016-08-31 | 中国南方航空工业(集团)有限公司 | Air distribution controlling means and traveling grate boiler for traveling grate boiler |
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Application publication date: 20171208 |