CN208720268U - A kind of boiler plant with fluorine plastic-steel preheater - Google Patents
A kind of boiler plant with fluorine plastic-steel preheater Download PDFInfo
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- CN208720268U CN208720268U CN201821223852.7U CN201821223852U CN208720268U CN 208720268 U CN208720268 U CN 208720268U CN 201821223852 U CN201821223852 U CN 201821223852U CN 208720268 U CN208720268 U CN 208720268U
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- China
- Prior art keywords
- fluorine plastic
- steel
- air
- spherical
- preheater
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- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 title claims abstract description 121
- 229910052731 fluorine Inorganic materials 0.000 title claims abstract description 121
- 239000011737 fluorine Substances 0.000 title claims abstract description 121
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 57
- 239000010959 steel Substances 0.000 title claims abstract description 57
- 239000004033 plastic Substances 0.000 claims abstract description 72
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000003546 flue gas Substances 0.000 claims abstract description 39
- 239000007789 gas Substances 0.000 claims abstract description 39
- 230000004888 barrier function Effects 0.000 claims description 19
- 229920002313 fluoropolymer Polymers 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 15
- 239000003517 fume Substances 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims 1
- 230000008676 import Effects 0.000 claims 1
- 238000012546 transfer Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 239000003245 coal Substances 0.000 description 4
- 239000004809 Teflon Substances 0.000 description 3
- 229920006362 Teflon® Polymers 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000012432 intermediate storage Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- -1 highly basic Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- NICDRCVJGXLKSF-UHFFFAOYSA-N nitric acid;trihydrochloride Chemical compound Cl.Cl.Cl.O[N+]([O-])=O NICDRCVJGXLKSF-UHFFFAOYSA-N 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000002165 photosensitisation Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
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- Air Supply (AREA)
Abstract
The utility model provides a kind of boiler plant with fluorine plastic-steel preheater, belongs to boiler plant technical field.This has the boiler plant of fluorine plastic-steel preheater, including the boiler with burner hearth, the front end of boiler is provided with air blower, the rear end of boiler is provided with air-introduced machine, it is characterized in that, fluorine plastic-steel preheater is provided between the boiler and air-introduced machine, fluorine plastic-steel preheater includes shell, and the two sides of shell offer gas inlet and exhanst gas outlet respectively；Several fluorine Plastic Steel Pipes are provided in the internal cavity, and one end of several fluorine Plastic Steel Pipes is provided with the first connecting plate, the first spherical the cover is fixed on first connecting plate, first spherical the cover is connected with air blower, the other end of several fluorine Plastic Steel Pipes is provided with the second connecting plate, the second spherical the cover is fixed on second connecting plate, the second spherical the cover is connected with burner hearth.The utility model can preheat the air for being blown into boiler furnace using flue gas.
Description
Technical field
The utility model belongs to boiler plant technical field, is related to a kind of boiler plant, especially a kind of to have fluorine plastic-steel
The boiler plant of preheater.
Background technique
Air preheater is to pass through internal cooling fin using the flue gas in boiler back end ductwork for the sky before entering boiler
Gas is preheating to the heating surface of certain temperature.For improving the heat exchange performance of boiler, energy consumption is reduced.
Air preheater can be divided into box type, two kinds rotary, wherein rotary and be divided into that fan housing is rotary and heating surface
Rotary two kinds.Station boiler also has box type preheater compared with frequently with heating surface rotary preheater, due to it is respectively needed by
Using.Application in the boiler is generally Liang Fencang, San Fencang, four warehouse separated types, wherein four points of storehouses are more common in recirculating fluidized bed
In boiler.Bobbin carriage preheater structure is relatively simple, its working principle is that: flue gas flows through outside bobbin carriage, and air is inside bobbin carriage
Pass through, it is identical as the principles such as economizer, superheater by temperature difference different heat transfer.The working principle of rotary preheater is: preheating
Device rotor part is made of the heat transfer element of tens of thousands of meters, and when air preheater slowly rotates, flue gas and air are inversely flowed alternately through
Air preheater, heat accumulating element absorbs heat in fume side, in air side heat release, to reach reduction exhaust gas temperature, improves heat
The pre- heat effect of air temperature.
The generally existing stifled ash of the air preheater boiler final stage air preheater that existing power plant uses, burn into leak out etc. existing
Shape.The appearance for phenomena such as appearance of fluoroplastics heat exchanger tube greatly improves and prevent stifled ash, burn into leaks out.Fluoroplastics heat exchanger tube
Because its excellent internal performance has the advantage that
1, since fluoroplastics itself have non-stick and self-cleaning property, nearly all medium cannot all be adhered to its surface,
Dirt generation is not had when use, therefore the heat exchanger of fluoroplastics material manufacture has the function of certain from deashing, while fluorine modeling
Expects pipe beam is light-weight, has slight vibration when in use；
2, fluoroplastics heat exchanger tube surface itself is smooth, and coefficient of friction is small, moreover fluoroplastics heat exchanger tube is relative to metal heat-exchange
Rich in elasticity, the tube bank of teflon heat exchanger can make that the fluid heated is needed sufficiently to contact with steam pipe, and surface contact is big, from
And heat exchange efficiency is improved, since fluoroplastics itself are relatively lighter, the more traditional metal of teflon heat exchanger is changed under identical duty parameter
Light-weight more of hot device, to be conducive to transport and install；
3, have good thermal stability, flexible, cracking resistance and the transparency, be one kind can Continuous maching, can adapt to high
Processing environment；
4, product is in soft shape, flexible at arbitrary shape, but radius of curvature >=150 ㎜, and has high flame resistance,
The highdensity non-polar material of excellent electrical insulating property, has excellent dielectric properties, and electric leakage and double is not generated during mortgage
Property electrode；
5, excellent anti-aging property, molecule cannot act on therewith without photosensitizing effect, ozone-ultraviolet line etc., immerse deep-etching
Medium, and be chronically exposed in severe atmosphere；Since teflon heat exchanger is corrosion-resistant, wear-resistant, it is many excellent to be not easy dust stratification etc.
Point, the chemical stability with height, molecular structural formula are full symmetric and unbranched linear macromolecules, and molecule does not have pole
Property, it is chemically quite stable, contact safe and sound, ability for a long time in the solution such as strong acid, highly basic, oxidant, oxide, chloroazotic acid
The service life of hydrofluoric acid therefore the equipment that concentration 0-100% boils is up to 8~10 years.
So being greatly developed using fluoroplastics heat exchanger tube in the boiler for the excellent properties of above-mentioned fluoroplastics heat exchanger tube
Application to production have huge meaning.Due to existing fluoroplastics heat exchanger tube be commonly used to flue gas and flue gas heat exchange or
Be the heat exchange of flue gas and vapor or be water and flue gas heat exchange, also it is fresh less be used for flue gas and air heat exchange.So right
In those skilled in the art, it need to change the device that fluoroplastics heat exchanger tube is applied in boiler in the prior art
Into preferably to play the function of fluoroplastics heat exchanger tube.
Summary of the invention
The purpose of this utility model is the presence of the above problem in view of the prior art, is proposed a kind of with the preheating of fluorine plastic-steel
The boiler plant of device, technical problem to be solved in the utility model how are realized using flue gas to the sky for being blown into boiler furnace
Gas is preheated.
The purpose of this utility model can be realized by the following technical scheme: a kind of boiler with fluorine plastic-steel preheater is set
Standby, including the boiler with burner hearth, the front end of boiler is provided with the air blower that can blow air into burner hearth, and the rear end of boiler is set
It is equipped with the air-introduced machine for extracting burner hearth hot fume, the outside of air-introduced machine is provided with chimney by air-exhausting duct, which is characterized in that institute
Fluorine plastic-steel preheater is provided between the boiler and air-introduced machine stated, the fluorine plastic-steel preheater includes the shell with internal cavity
Body, the two sides of shell offer the gas inlet and exhanst gas outlet being connected with internal cavity respectively, and gas inlet passes through discharge pipe
One is connected with burner hearth, and exhanst gas outlet is connected by discharge pipe two with air-introduced machine；It is provided in the internal cavity and several is in
The horizontally disposed fluorine Plastic Steel Pipe of array, and one end of several fluorine Plastic Steel Pipes is pierced by shell and is provided with the first connecting plate, the first connection
The spherical the cover of the port of fluorine Plastic Steel Pipe one end can be surrounded first, the first spherical the cover and drum are fixed on plate
Blower is connected by blast pipe one, and the other end of several fluorine Plastic Steel Pipes is pierced by shell and is provided with the second connecting plate, the second connection
Be fixed with the spherical the cover of the port of the fluorine Plastic Steel Pipe other end can be surrounded second on plate, the second spherical the cover with
Burner hearth is connected by blast pipe two.
This has the boiler plant of fluorine plastic-steel preheater, its working principle is that such: firstly, the flue gas that burner hearth generates is logical
It crosses discharge pipe one to enter in gas inlet, under the action of air blower, enter in blast pipe one in extraneous air；So
Afterwards, flue gas passes through from the fluorine plastic-steel pipe outer wall in internal cavity, meanwhile, the air to come, which is conveyed, from blast pipe one is flowed into fluorine plastic-steel
Guan Zhong will generate heat exchange, to make fluorine Plastic Steel Pipe since flue gas can heat fluorine Plastic Steel Pipe between flue gas and air
Air preheat；Finally, being passed through burner hearth by the air of preheating under the action of blast pipe two, realizes and burn with coal, meanwhile,
Under the action of air-introduced machine, the flue gas after heat exchange is flowed out from discharge pipe two, and is discharged outward by chimney.
In the above-mentioned boiler plant with fluorine plastic-steel preheater, first connecting plate and the first spherical the cover it
Between be provided with ring flange one, be provided with sealing ring one between the side of ring flange one and the first connecting plate, ring flange one it is another
Sealing ring two is provided between side and the first spherical the cover.
In the above-mentioned boiler plant with fluorine plastic-steel preheater, second connecting plate and the second spherical the cover it
Between be provided with ring flange two, be provided with sealing ring three between the side of ring flange two and the second connecting plate, ring flange two it is another
Sealing ring four is provided between side and the second spherical the cover.
In the above-mentioned boiler plant with fluorine plastic-steel preheater, second enclosed globe shade covers collateral by air inlet
Pipe and outlet side branch are communicated with buffer tank, and air intake valve is provided on the air inlet side branch, is arranged on outlet side branch
There is outlet valve.The air intake valve on air inlet side branch is opened, and adjusts the air inlet size of air intake valve, from the second enclosed globe shade
Covering the partial air flowed through to burner hearth will be flowed into buffer tank from air inlet side branch, carry out intermediate storage；Open out gas side
Outlet valve on branch pipe it is empty can to increase preheating by outlet side branch to the air of burner hearth supply preheating from buffer tank
Air lift is for flow.
In the above-mentioned boiler plant with fluorine plastic-steel preheater, the fluorine Plastic Steel Pipe includes steel pipe body and setting
In the fluoroplastic layer of outer surface of steel tube, the fluoroplastic layer is fixed on outer surface of steel tube by way of extrusion moulding.
In the above-mentioned boiler plant with fluorine plastic-steel preheater, the both ends of the shell offer several for fluorine modeling
The perforating that steel pipe passes through, perforating are round hole, are provided with sealing ring between fluorine Plastic Steel Pipe and perforating.
In the above-mentioned boiler plant with fluorine plastic-steel preheater, the both ends of the fluorine Plastic Steel Pipe are respectively and fixedly provided with outward
Several mounting holes are offered on the "-" type clamping portion of protrusion, the first connecting plate and the second connecting plate, mounting hole is close to first
The side of spherical the cover or the second spherical the cover offers cross mounting groove, and fluorine Plastic Steel Pipe is installed by "-" type clamping portion
It is formed and is fixed in the cross mounting groove on the first connecting plate and the second connecting plate.After fluorine Plastic Steel Pipe is used for a long time, adjustment
The different forward direction of fluorine Plastic Steel Pipe is catered to face and is gone towards gas inlet, connects so that the forward direction for keeping fluorine Plastic Steel Pipe different caters to face with flue gas
Touching, to improve fluorine Plastic Steel Pipe service life.
In the above-mentioned boiler plant with fluorine plastic-steel preheater, the fluorine plastic-steel tube outer surface is circumferentially fixed along its
There are several barrier plates, the barrier plate is arc-shaped, and along gas inlet lateral bend, the length of barrier plate is less than the radian of barrier plate
The length of internal cavity.When the flue gas flow direction fluorine Plastic Steel Pipe of gas inlet side, can be contacted first with the outer tube wall of fluorine Plastic Steel Pipe, it is real
Existing heat transfer, while flue gas can prevent to flow to exhanst gas outlet side by barrier plate, at this time when flowing to exhanst gas outlet side
Flue gas, which will walk around to, to be flowed and moves forward around barrier plate, this adds increased the time of contact of flue gas and fluorine Plastic Steel Pipe,
To keep heat transfer time longer, heat transference efficiency is improved.
In the above-mentioned boiler plant with fluorine plastic-steel preheater, flow control valve is provided on the blast pipe one
One.The adjustable natural air of flow control valve one enters the uninterrupted in fluorine plastic-steel preheater.
In the above-mentioned boiler plant with fluorine plastic-steel preheater, flow control valve is provided on the blast pipe two
Two.Air after the adjustable preheating of flow control valve two enters the uninterrupted in burner hearth.
Compared with prior art, the utility model has the advantage that
1, the utility model from burner hearth, discharge pipe one flow to fluorine plastic-steel pipe outer wall by flue gas, meanwhile, by air from outer
Boundary, blast pipe one are flowed into fluorine Plastic Steel Pipe, since flue gas can heat fluorine Plastic Steel Pipe, will be produced between flue gas and air
Heat exchange, to make the air preheat of fluorine Plastic Steel Pipe, reduces exhaust gas temperature, improves boiler efficiency.
2, the utility model is communicated with caching by air inlet side branch and outlet side branch by covering in the second enclosed globe shade
Tank, the partial air for flowing through the second spherical the cover to burner hearth will be flowed into buffer tank from air inlet side branch, carry out intermediate
Storage, to maintain stable gas pressure in burner hearth.
3, fluorine Plastic Steel Pipe is mounted on the first connecting plate and the second connecting plate by the utility model by "-" type clamping portion
Cross mounting groove in formed and be detachably fixed, the different forward direction of adjustable fluorine Plastic Steel Pipe cater to face go towards flue gas into
Mouthful, so that the forward direction for keeping fluorine Plastic Steel Pipe different caters to face and smoke contacts, it is final to improve fluorine Plastic Steel Pipe service life.
4, the utility model by fluorine plastic-steel tube outer surface along its it is circumferentially fixed have several barrier plates, when gas inlet side
Flue gas flow direction fluorine Plastic Steel Pipe when, can be contacted first with the outer tube wall of fluorine Plastic Steel Pipe, realize heat transfer；Flue gas is to cigarette simultaneously
It when gas outlet side flows, can prevent to flow to exhanst gas outlet side by barrier plate, flue gas, which will walk around to, at this time flows and around resistance
Baffle moves forward, and this adds increased the times of contact of flue gas and fluorine Plastic Steel Pipe, to keep heat transfer time longer, improves
Heat transference efficiency.
5, the fluorine Plastic Steel Pipe in the utility model has excellent resistance to chemical corrosion, non-aging；Fluorine Plastic Steel Pipe
Surface wettability is poor, and other objects are difficult to adhere on its surface, is not easy stifled ash；The coefficient of friction of fluorine Plastic Steel Pipe is minimum in fixed
, permeability is extremely low.
6, the utility model structure is simple, and manufacture, overhauls very convenient, reliable operation at installation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of fluorine plastic-steel preheater in the utility model.
Fig. 3 is the schematic cross-sectional view of fluorine Plastic Steel Pipe in the utility model.
In figure, 1, boiler；2, air blower；3, air-introduced machine；4, chimney；5, fluorine plastic-steel preheater；5a, shell；5b, flue gas into
Mouthful；5c, exhanst gas outlet；6, discharge pipe one；7, discharge pipe two；8, fluorine Plastic Steel Pipe；9, the first connecting plate；10, the first spherical the cover；
11, blast pipe one；12, the second connecting plate；13, the second spherical the cover；14, blast pipe two；15, ring flange one；16, ring flange
Two；17, air inlet side branch；18, outlet side branch；19, buffer tank；20, barrier plate；21, flow control valve one；22, flow tune
Save valve two；23, air-exhausting duct.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Figure 1,2 and 3, a kind of boiler plant with fluorine plastic-steel preheater, including the boiler 1 with burner hearth, furnace
The side of thorax is provided with the coal feed point that coal can be input to lower furnace portion, and the lower part of burner hearth is provided with deslagging chamber, deslagging chamber
Side offer slag notch, be provided in slag notch can by slag notch open or closed cover board.The front end of boiler 1 is arranged
There is the air blower 2 that can blow air into burner hearth, the rear end of boiler 1 is provided with the air-introduced machine 3 for extracting burner hearth hot fume, draws
The outside of blower 3 is provided with chimney 4 by air-exhausting duct 23.
As shown in Fig. 2, being provided with fluorine plastic-steel preheater 5 between boiler 1 and air-introduced machine 3, fluorine plastic-steel preheater 5 includes tool
There is the shell 5a of internal cavity, the two sides of shell 5a offer the gas inlet 5b and exhanst gas outlet being connected with internal cavity respectively
5c, gas inlet 5b are connected by discharge pipe 1 with burner hearth, and exhanst gas outlet 5c is connected by discharge pipe 27 with air-introduced machine 3
It is logical.Being provided in internal cavity several is in the horizontally disposed fluorine Plastic Steel Pipe 8 of array, and one end of several fluorine Plastic Steel Pipes 8 is pierced by shell
5a is provided with the first connecting plate 9, and can surround the port of 8 one end of fluorine Plastic Steel Pipe is fixed on the first connecting plate 9
One spherical the cover 10, the first spherical the cover 10 are connected with air blower 2 by blast pipe 1.First connecting plate 9 and the first ball
It is provided with ring flange 1 between shape the cover 10, is provided with sealing ring one between the side of ring flange 1 and the first connecting plate 9,
Sealing ring two is provided between the other side of ring flange 1 and the first spherical the cover 10.The other end of several fluorine Plastic Steel Pipes 8 is worn
Shell 5a is provided with the second connecting plate 12 out, and being fixed on the second connecting plate 12 can be equal by the port of 8 other end of fluorine Plastic Steel Pipe
The spherical the cover 13 of second surrounded, the second spherical the cover 13 are connected with burner hearth by blast pipe 2 14.Second connecting plate 12
It is provided with ring flange 2 16 between the second spherical the cover 13, is provided between the side of ring flange 2 16 and the second connecting plate 12
Sealing ring three is provided with sealing ring four between the other side of ring flange 2 16 and the second spherical the cover 13.It is set on blast pipe 1
It is equipped with flow control valve 1, the adjustable natural air of flow control valve 1 enters the flow in fluorine plastic-steel preheater 5
Size.Flow control valve 2 22 is provided on blast pipe 2 14, the air after the adjustable preheating of flow control valve 2 22 enters
Uninterrupted in burner hearth.
In the present embodiment, it is communicated in the second spherical the cover 13 by air inlet side branch 17 and outlet side branch 18 slow
Tank 19 is deposited, air intake valve is provided on air inlet side branch 17, is provided with outlet valve on outlet side branch 18.It is collateral to open air inlet
Air intake valve on pipe 17, and the air inlet size of air intake valve is adjusted, from the part that the second spherical the cover 13 is flowed through to burner hearth
Air will be flowed into buffer tank 19 from air inlet side branch 17, carry out intermediate storage；Open the outlet on outlet side branch 18
Valve can increase preheated air and provide stream from buffer tank 19 by outlet side branch 18 to the air of burner hearth supply preheating
Amount maintains stable gas pressure in burner hearth.
Specifically, fluorine Plastic Steel Pipe 8 includes steel pipe body and the fluoroplastic layer that outer surface of steel tube is arranged in, and fluoroplastic layer is logical
The mode for crossing extrusion moulding is fixed on outer surface of steel tube.In the present embodiment, the internal diameter of fluorine Plastic Steel Pipe 8 is 30mm, fluorine Plastic Steel Pipe 8
With a thickness of 1mm, fluoroplastic layer with a thickness of 0.7mm.The both ends of shell 5a offer several to be worn for what fluorine Plastic Steel Pipe 8 passed through
Hole, perforating are round hole, are provided with sealing ring between fluorine Plastic Steel Pipe 8 and perforating.The both ends of fluorine Plastic Steel Pipe 8 are respectively and fixedly provided with
Several mounting holes are offered on the "-" type clamping portion outwardly protruded, the first connecting plate 9 and the second connecting plate 12, mounting hole leans on
The side of nearly first spherical the cover 10 or the second spherical the cover 13 offers cross mounting groove, and fluorine Plastic Steel Pipe 8 passes through a word
Type clamping portion is mounted on to be formed in the cross mounting groove on the first connecting plate 9 and the second connecting plate 12 and fix.When fluorine Plastic Steel Pipe 8
After long-time service, the different forward direction of adjustment fluorine Plastic Steel Pipe 8 is catered to face and is gone towards gas inlet 5b, to keep fluorine Plastic Steel Pipe 8 different
Forward direction cater to face and smoke contacts, to improve 8 service life of fluorine Plastic Steel Pipe.
As shown in figure 3,8 outer surface of fluorine Plastic Steel Pipe along its it is circumferentially fixed have several barrier plates 20, barrier plate 20 is arc-shaped, resistance
For the radian of baffle 20 along gas inlet 5b lateral bend, the length of barrier plate 20 is less than the length of internal cavity.When the side gas inlet 5b
Flue gas flow direction fluorine Plastic Steel Pipe 8 when, can be contacted first with the outer tube wall of fluorine Plastic Steel Pipe 8, realize heat transfer, while flue gas to
When the side exhanst gas outlet 5c is flowed, it can prevent to flow to the side exhanst gas outlet 5c by barrier plate 20, flue gas will walk around to flowing at this time
And move forward around barrier plate 20, this adds increased the times of contact of flue gas and fluorine Plastic Steel Pipe 8, thus when transmitting heat
Between it is longer, improve heat transference efficiency.
This has the boiler plant of fluorine plastic-steel preheater, its working principle is that such: firstly, the flue gas that burner hearth generates is logical
It crosses discharge pipe 1 to enter in gas inlet 5b, under the action of air blower 2, enters blast pipe 1 in extraneous air
In；Then, flue gas passes through from 8 outer wall of fluorine Plastic Steel Pipe in internal cavity, meanwhile, the air to come is conveyed from blast pipe 1 to be flowed into
Into fluorine Plastic Steel Pipe 8, since flue gas can heat fluorine Plastic Steel Pipe 8, heat exchange will be generated between flue gas and air, thus
Make the air preheat of fluorine Plastic Steel Pipe 8；Finally, burner hearth is passed through by the air of preheating under the action of blast pipe 2 14, with coal reality
Now burn, meanwhile, under the action of air-introduced machine 3, the flue gas after heat exchange is flowed out from discharge pipe 27, and passes through chimney 4
Discharge outward.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Although 1, boiler is used more herein；2, air blower；3, air-introduced machine；4, chimney；5, fluorine plastic-steel preheater；
5a, shell；5b, gas inlet；5c, exhanst gas outlet；6, discharge pipe one；7, discharge pipe two；8, fluorine Plastic Steel Pipe；9, the first connection
Plate；10, the first spherical the cover；11, blast pipe one；12, the second connecting plate；13, the second spherical the cover；14, blast pipe two；15,
Ring flange one；16, ring flange two；17, air inlet side branch；18, outlet side branch；19, buffer tank；20, barrier plate；21, flow
Regulating valve one；22, flow control valve two；23, the terms such as air-exhausting duct, but it does not exclude the possibility of using other terms.It uses
These terms are used for the purpose of being more convenient to describe and explain the essence of the utility model；It is construed as any additional
Limitation be all contrary to the spirit of the present invention.
Claims (10)
1. a kind of boiler plant with fluorine plastic-steel preheater, including the boiler with burner hearth, the front end of boiler is provided with can
Blow air into the air blower of burner hearth, the rear end of boiler is provided with the air-introduced machine for extracting burner hearth hot fume, air-introduced machine it is outer
Side is provided with chimney by air-exhausting duct, which is characterized in that fluorine plastic-steel preheater, institute are provided between the boiler and air-introduced machine
The fluorine plastic-steel preheater stated includes the shell with internal cavity, and the two sides of shell offer the flue gas being connected with internal cavity respectively
Import and exhanst gas outlet, gas inlet are connected by discharge pipe one with burner hearth, and exhanst gas outlet passes through discharge pipe two and air-introduced machine
It is connected；Several in the horizontally disposed fluorine Plastic Steel Pipe of array, and one end of several fluorine Plastic Steel Pipes is provided in the internal cavity
It is pierced by shell and is provided with the first connecting plate, being fixed on the first connecting plate can surround the port of fluorine Plastic Steel Pipe one end
The spherical the cover of first firmly, the first spherical the cover are connected with air blower by blast pipe one, the other end of several fluorine Plastic Steel Pipes
It is pierced by shell and is provided with the second connecting plate, being fixed on the second connecting plate can be by the port Jun Bao of the fluorine Plastic Steel Pipe other end
The spherical the cover of second surrounded, the second spherical the cover are connected with burner hearth by blast pipe two.
2. the boiler plant according to claim 1 with fluorine plastic-steel preheater, which is characterized in that first connection
It is provided with ring flange one between plate and the first spherical the cover, is provided with sealing ring between the side of ring flange one and the first connecting plate
One, sealing ring two is provided between the other side of ring flange one and the first spherical the cover.
3. the boiler plant according to claim 2 with fluorine plastic-steel preheater, which is characterized in that second connection
It is provided with ring flange two between plate and the second spherical the cover, is provided with sealing ring between the side of ring flange two and the second connecting plate
Three, sealing ring four is provided between the other side of ring flange two and the second spherical the cover.
4. the boiler plant according to claim 3 with fluorine plastic-steel preheater, which is characterized in that described second is spherical
Buffer tank is communicated with by air inlet side branch and outlet side branch in the cover, is provided with intake valve on the air inlet side branch
, outlet valve is provided on outlet side branch.
5. the boiler plant according to claim 1 or 2 or 3 or 4 with fluorine plastic-steel preheater, which is characterized in that described
Fluorine Plastic Steel Pipe include steel pipe body and the fluoroplastic layer that outer surface of steel tube is set, the fluoroplastic layer passes through extrusion moulding
Mode be fixed on outer surface of steel tube.
6. the boiler plant according to claim 5 with fluorine plastic-steel preheater, which is characterized in that the two of the shell
End offers several perforatings passed through for fluorine Plastic Steel Pipe, and perforating is round hole, is respectively provided between fluorine Plastic Steel Pipe and perforating
There is sealing ring.
7. the boiler plant according to claim 5 with fluorine plastic-steel preheater, which is characterized in that the fluorine Plastic Steel Pipe
Both ends be respectively and fixedly provided with the "-" type clamping portion outwardly protruded, offer several installations on the first connecting plate and the second connecting plate
Hole, mounting hole offer cross mounting groove close to the side of the first spherical the cover or the second spherical the cover, and fluorine Plastic Steel Pipe is logical
It crosses to be formed in the cross mounting groove that "-" type clamping portion is mounted on the first connecting plate and the second connecting plate and fix.
8. the boiler plant according to claim 5 with fluorine plastic-steel preheater, which is characterized in that the fluorine Plastic Steel Pipe
Outer surface along its it is circumferentially fixed have several barrier plates, the barrier plate is arc-shaped, and the radian of barrier plate is along gas inlet lateral bending
Song, the length of barrier plate are less than the length of internal cavity.
9. the boiler plant according to claim 1 with fluorine plastic-steel preheater, which is characterized in that the blast pipe one
On be provided with flow control valve one.
10. the boiler plant according to claim 1 with fluorine plastic-steel preheater, which is characterized in that the blast pipe
Flow control valve two is provided on two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821223852.7U CN208720268U (en) | 2018-07-31 | 2018-07-31 | A kind of boiler plant with fluorine plastic-steel preheater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821223852.7U CN208720268U (en) | 2018-07-31 | 2018-07-31 | A kind of boiler plant with fluorine plastic-steel preheater |
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| CN208720268U true CN208720268U (en) | 2019-04-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758681A (en) * | 2018-07-31 | 2018-11-06 | 海宁马桥大都市热电有限公司 | A kind of boiler plant with fluorine plastic-steel preheater |
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2018
- 2018-07-31 CN CN201821223852.7U patent/CN208720268U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758681A (en) * | 2018-07-31 | 2018-11-06 | 海宁马桥大都市热电有限公司 | A kind of boiler plant with fluorine plastic-steel preheater |
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