CN106190187B - A kind of unstressed self-tightening sealing tedge and its manufacturing method - Google Patents
A kind of unstressed self-tightening sealing tedge and its manufacturing method Download PDFInfo
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- CN106190187B CN106190187B CN201510223465.8A CN201510223465A CN106190187B CN 106190187 B CN106190187 B CN 106190187B CN 201510223465 A CN201510223465 A CN 201510223465A CN 106190187 B CN106190187 B CN 106190187B
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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
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Abstract
The present invention relates to a kind of unstressed self-tightening sealing tedge and its manufacturing methods, the tedge includes outer barrel and is set to the intracorporal high temperature resistant of outer cylinder, corrosion resistant internal lining pipe, the outer barrel includes the first cylinder and the second cylinder being connected to each other, first inner barrel has cavity and is metal tube, the cavity is built-in with the radiant tube group for absorbing heat, and second cylinder is the transformable expansion joint of length；The internal lining pipe is docked by the first bushing pipe, the second bushing pipe, corresponding end is respectively arranged with the sealing pair being made of slotting platform and slot corresponding with the slotting platform at the abutment joint of the two, sealing material is filled in the sealing pair, so that the heat type variable of the internal lining pipe can be absorbed by the sealing pair；Retaining ring and refractory seals layer are enclosed on the outside of the abutment joint.The present invention in the structure for being adapted to any tedge waste heat recycling system by designing, being particularly suitable for high-quality recycling waste heat and generating high steam.
Description
Technical field
The present invention relates to raw coke oven gas Waste Heat Reuse boiler system, in particular a kind of unstressed self-tightening sealing tedge and its system
Make method.
Background technique
Enter in gas collecting tube from coke oven through tedge, bridge tube, raw coke oven gas is sprayed at bridge tube and gas collecting tube with ammonium hydroxide cold
But, its temperature is made to be down to 80-85 DEG C by 650-750 DEG C, to reach this temperature requirement, dry furnace coal per ton need to spray 5-6 tons
Ammonium hydroxide is for cooling down raw coke oven gas, that is to say, that the waste heat of raw coke oven gas is not utilized not only, but also to be consumed power and made coal
Air cooling and part tar device condense out, raw coke oven gas since Pintsch process often forms hard graphite in tedge root,
Raw coke oven gas is influenced to be smoothly discharged.Since the raw coke oven gas generated in carbonization chamber is different in different coking period gas volumes, and vapour
The heat absorption efficiency for changing cooling device is very high, so apparatus for vapour-cooling will cause raw coke oven gas in tedge in gas production few period
Temperature is lower than 400 DEG C, and temperature is too low to be will cause tar gas in coal gas and condense, and flowing back carbonization chamber or is adhered to inside pipe wall and influences waste coal
Conductance goes out, and cleans difficult.Tar flow resistance in the channels such as gas collecting tube, air intake duct is also resulted in increase.So coke oven coke oven uprising tube
The task of waste heat recycling is exactly the waste heat for recycling 400-750 DEG C.
Raw coke oven gas belongs to high-quality heat energy in 850 DEG C~500 DEG C of thermal energy, and low-quality use of the high-quality energy is also wave
Take, raw coke oven gas has 850~350 DEG C or so of alternating variation during entire generate, and wants when raw gas temperature is higher than 500 DEG C
Waste Heat Reuse is sought, requirement stops taking heat when temperature is lower than 500 DEG C, and otherwise will cause coking influences production and exist safe hidden
Suffer from.Raw coke oven gas is through cross under in tedge, and cooling using a large amount of 70 DEG C~75 DEG C cyclic ammonia waters, ammonium hydroxide goes to cool down again, recycles
It uses, high temperature raw coke oven gas is cooled to 82 DEG C~85 DEG C because of a large amount of evaporations of cyclic ammonia water, and raw coke oven gas itself waste heat cannot get
It using wasting, also wants a large amount of ammonium hydroxide cooling, also to consume power and carry out ammonia circulation.
If about 10kg/ tons of coke of process energy consumption can be reduced by 850 DEG C~500 DEG C high temperature sensible heat heat energy recycles；It presses
It will produce 1300000 tons of coke outputs per year using Baofeng energy group of cooperation experiment, can produce 0.8MPa saturated vapor about 170,000
Ton converts into 1.6 ten thousand tons of coal, nearly 3.98 ten thousand tons of CO2 emission reduction of mark；1190 tons of SO2 emission reduction, 590 tons of NO2 emission reduction；At the same time it can also save
Power required for saving ammonium hydroxide and its recycling, effects of energy saving and emission reduction are obvious.So useless in development ascending tube crude-gas both at home and abroad
Heat utilization device and system.
Currently, realizing that engineer application only has jacket type structure both at home and abroad, which utilizes its life for tedge Waste Heat Recovery
0.8MPa saturated vapor is produced, temperature is 175 DEG C, and there are also 126 tedge waste heats to recycle patented technology for remaining, or with engineer application
Fail and can not achieve engineering application, or lays aside and neglects and do not have application value.
Currently existing possible technique there are the problem of:
Fatigue problem of the jacket type structure under alternating load can not solve:
Temperature alternation between 850~350 DEG C in tedge in tedge operational process, for the collet of fillet welding crack structure
Formula waste-heat recovery device has a fatigue period, once fatigue generates, weld seam can be broken suddenly, and instant water flows out in collet
Explosion of boiler proper can be generated on coke oven, cause huge economic loss, there are major safety risks.
The low-quality recycling of the high-quality energy
850 DEG C~500 DEG C high temperature of raw coke oven gas, belong to middle high-quality heat source, are steamed with the 0.8MPa saturation that temperature is only 175 DEG C
Vapour utilizes the grade heat source, it is clear that low-grade to use, such application itself does not have the effective use waste heat, and there are the waves of the energy
Take.
Gathering cold phenomenon leads to coking, brings many troubles to production
During the dry distillation of coal when production process is coal process, temperature can reach 300~400 DEG C in tedge, this
Process tedge also when taking heat drop temperature, will make to gather cold phenomenon to interior generation, keep the poly- cold junction of the raw coke oven gas of output burnt, consequence meeting
Make coking widen one's influence to conduct heat and waste heat boiler is made to fail, steam cannot be generated, causes coke cleaning difficult, affected to production,
Frequent coke cleaning can also improve labor intensity, raw coke oven gas leakage causes environmental pollution, cause that worker operation environment is more severe, increases
Operation and occupational disease security risk, coke cleaning also will cause equipment injury.
Currently, there is tedge UTILIZATION OF VESIDUAL HEAT IN patent 126 in the country, there are formula in pipe, bushing type and folder for structure type
Shell type；It is carried out in such a way that heat transfer, thermal convection and heat radiation combine for heat transfer type.Wherein representative configurations shape
Formula has jacket type coiled, and heat transfer type is the heat transfer of tedge, and patent has: application number 201210457921.1(is for coke
Furnace ascending tube crude-gas heat recovery heat exchanger), which is made of inside and outside casing, and multiply spiral is equipped between inside and outside casing and is returned
Circulation road, inside and outside casing both ends respectively set a confluence header.The coke oven coke oven uprising tube raw coke oven gas waste heat of this application and other forms
Recycling heat exchanger compares, and is suitble to the variation of coking process raw coke oven gas operating condition, strengthens heat transfer effect to a certain extent, solve
The problem of tube wall coking, but disadvantage is that: this application is primarily adapted for use in coke oven coke oven uprising tube of the gas as cold medium
Heat exchanger, when for using demineralized water as cold medium, the effect is unsatisfactory, and the heat of this application is easily outer scattered, to environment
Bring baneful influence；Number of patent application 201210370657.8, (waste heat of coke oven crude gas utilizes method and apparatus), the case is in
Between be respectively equipped with inner barrel and outer barrel inside and outside cylinder, internal jacket is constituted between inner cylinder and intermediate cylinder, between outer cylinder and intermediate cylinder
External jacket is constituted, internal jacket and external jacket share a middle cylinder, and the axial height of internal jacket is greater than the axial high of external jacket
Degree, internal jacket block external jacket completely；Internal jacket is full of heat-conducting medium gas phase or liquid phase material, and external jacket is full of processing medium liquid
Body or gas, high temperature raw coke oven gas directly exchange heat with internal jacket, and heat is given in external jacket again by the heat-conducting medium of internal jacket
Processing medium, this application also solves the problems, such as the easy coking of tedge and blocking to a certain extent, but this application is passed through
It exchanges heat twice, thermal loss is big, and the heat of this application is also easily outer to be dissipated, and influences external environment.
Now, only jacket type structure implements engineering application, and Reliability Engineering test is also less than 1 year, coke oven famine coal
Gas waste heat recovery generating system and a kind of method (application number: 104061031A) waste heat of coke oven crude gas recycling system are (specially
Benefit 203530217U), typical feature is jacket type structure.
Many patents can not achieve engineering application configuration aspects the reason is that:Tedge fortune is not can solve
Temperature alternating problem during row, there are problem of fatigue damage under alternating load for engineering structure: in tedge operational process
Temperature alternation between 1200~350 DEG C in tedge, for the jacket type waste-heat recovery device of fillet welding crack structure, have one it is tired
In the labor period, once fatigue generates, weld seam can be broken suddenly, and instant water, which flows out to, in collet can generate Explosion of boiler proper on coke oven, make
At huge economic loss, there are major safety risks；Etching problem: in tedge there is complicated corrosion and be situated between in raw coke oven gas
The coupling of matter, corrosive medium and high temperature will cause metal material heavy corrosion and ablation；Tedge pipe outside heat removing system is to upper
The additional load of riser operational process, tedge temperature loading alternation, the process of expansion and contraction alternation of material go out in the process
The coupling additional load of existing additional potential compression and moment of flexure, this damage inactivation that is attached to and will cause tedge.
Summary of the invention
Present invention aims at solving the above problems, a kind of unstressed self-tightening sealing tedge and its manufacturer are provided
Method is specifically realized by the following technical scheme:
A kind of unstressed self-tightening sealing tedge, connects coke oven and bridge tube, including outer barrel and is set to outer barrel
Interior high temperature resistant, corrosion resistant internal lining pipe, the outer barrel include the first cylinder and the second cylinder being connected to each other, and described first
Inner barrel has cavity and is metal cylinder, and the cavity is built-in with the radiant tube group for absorbing heat, and described second
Body is the transformable expansion joint of length, so that the thermal deformation amount of the first cylinder can be absorbed by the second cylinder；The internal lining pipe is by
One bushing pipe, the second bushing pipe dock, at the abutment joint of the two corresponding end be respectively arranged with by slotting platform and with the slotting platform pair
The sealing pair for the slot composition answered, the sealing pair is interior to be filled with sealing material, so that the heat type variable of the internal lining pipe can be by institute
State sealing pair absorption；Retaining ring and refractory seals layer are enclosed on the outside of the abutment joint, so that the nothing is answered under the condition of high temperature
In sealing pair and sealing pair of the sealing effect by expanded by heating under engaged state inside and outside power self-tightening sealing tedge
Sealing material realize that the sealing effect under low-temperature condition inside and outside the unstressed self-tightening sealing tedge is by the retaining ring pressure after shrinkage
Compel refractory seals layer to realize in the abutment joint.
The unstressed self-tightening sealing tedge, further design is that first cylinder is by internal layer cylinder, outer layer
Cylinder and end panel composition, the outer diameter of the internal layer cylinder are less than the radiant tube group, and the internal diameter of the outer layer cylinder is greater than described
Radiant tube group, the internal layer cylinder is set in the outer layer cylinder and the two is coaxial, and the end panel connects the internal layer cylinder
The both ends of outer layer cylinder, thus in the first cylinder formed can gap setting radiant tube group cavity.
The unstressed self-tightening sealing tedge, further design is that second cylinder is by sequentially connected
Expand bellows, adapter tube and shell flange composition.
The unstressed self-tightening sealing tedge, further design is that the expansion bellows both ends connect respectively
It is connected to installation baffle, the installation baffle opposite with the first cylinder is connect with first cylinder, thus the heat of first cylinder
Deformation quantity is transferred to the expansion bellows via the installation baffle.
The unstressed self-tightening sealing tedge, further design is, between first bushing pipe, the second bushing pipe
Abutment joint it is corresponding with second cylinder, so that the retaining ring and refractory seals layer are in the expansion bellows
Interior, correspondingly, the expansion inside diameter of bel is greater than the liner pipe outside diameter.
The unstressed self-tightening sealing tedge, further design is, the internal lining pipe and the expansion ripple
The thermal insulation layer for forming protection to expansion ripple pipe is additionally provided between pipe.
The unstressed self-tightening sealing tedge, further design is, the company of being provided with outside first cylinder
The emptying for leading to the cavity and exterior space is taken over.
The unstressed self-tightening sealing tedge, further design is, the lower port of the radiant tube group and outer
The water inlet concetrated pipe in portion connects, and the upper port of radiant tube group is connect with carbonated drink mixed phase outlet header.
The unstressed self-tightening sealing tedge, further design is, the internal lining pipe is using ceramics or pottery
Porcelain based composites are made, and are enclosed with insulating layer outside the outer barrel.
A kind of manufacturing method of unstressed self-tightening sealing tedge as described above, specifically comprises the following steps:With Δ L
=α Δ tL calculates thermal expansion amount of the internal lining pipe under Δ t temperature change and as datum length, and wherein α is internal lining pipe
Thermal expansion coefficient, L are the length of internal lining pipe, and Δ L is thermal expansion amount, and Δ t is temperature variation；The socket depth of sealing pair is inserted
Platform length is greater than this datum length；It assembles and examines outer barrel: together by first cylinder, the second barrel soldering,
With flanged plate sealing both ends flange, inflation examination is close, does not leak for qualification；Detect internal lining pipe air-tightness: in the first bushing pipe, the second lining
Sealing material is added in the sealing pair slot bottom of pipe, using tooling that the first bushing pipe and the second bushing pipe is close in socket joint by installation length
Plugging in fitting is good at sealing groove, with blind flange sealing both ends ring flange, compresses filler, the stomata ventilation examination being equipped on blind flange
Both it is close, it does not leak for qualification, dismantle, it is spare that sealing material is inserted in sealing pair slot；It will be corresponding with the first cylinder
And the first bushing pipe with sealing pair slot is packed into the outer barrel；Into the expansion joint of the second cylinder, filling sealing is filled out
Material, retaining ring, thermal insulation layer: the installation baffle internal diameter of self-expanding section inserts above-mentioned filler and retaining ring, and it is swollen to be higher by corresponding filler
Swollen section ring flange；It is incorporated in corresponding second bushing pipe of the second cylinder, and the filler for being higher by expansion joint ring flange is flattened, is made
It obtains expansion joint ring flange and is close to the second bushing pipe flange.
Beneficial effects of the present invention:
The present invention is particularly suitable for height by designing in the structure for being adapted to any tedge waste heat recycling system
Quality recycles waste heat and generates high steam；The thermal deformation amount of outer barrel of the invention absorbs by the second cylinder, the heat of internal lining pipe
Deformation quantity can be absorbed by sealing pair, eliminated and be subject in tedge operational process to pipe-line system additional stress and tedge
Reaction force, so as to avoid due to tedge and pipe-line system junction due to aforementioned active force cause it is damaged and leakage
It is dangerous；To make waste heat utilization system structure stress optimize, high pressure can be born, the service life is long, and safety is secure；Knot of the present invention
Structure is compact, easy to operate, operating cost is low, and system is independent, can Cellular manufacturing processing.
Detailed description of the invention
Fig. 1 structural schematic diagram of the embodiment of the present invention.
Fig. 2 is the second cylinder and the second liner tube structure schematic diagram.
Fig. 3 internal lining pipe overall structure is intended to.
Fig. 4 is self-tightening sealing structure partial structural schematic diagram at I in Fig. 2.
In figure: 1- internal lining pipe, 1-1, the first bushing pipe, 1-2, airtight and watertight padding, 1-3, the second bushing pipe, 1-4, abutment joint, the end 2-
Portion's panel, 3- radiant tube group, 4- insulating layer, 5- emptying adapter tube, 6- outer layer cylinder, 7- install baffle, and 8- expands bellows, 9- second
Shell flange, 10- retaining ring, 11- the second bushing pipe ring flange, 12- refractory seals layer, 13- fixing bolt, 14- seal stopper ring,
15- internal layer cylinder, 16- adapter tube, the first cylinder of 171-, the second cylinder of 172-, 17- outer barrel, 18- thermal insulation layer, 19- lower port, 20-
Upper port.
Specific embodiment
Below in conjunction with Figure of description and embodiment, invention is further explained:
As shown in Figure 1, the unstressed self-tightening sealing tedge, connects coke oven and bridge tube, thus the unstressed self-tightening
Tedge alternation between 1200~350 DEG C is sealed, outer barrel 17 is specifically included and is set to the intracorporal high temperature resistant of outer cylinder, corrosion resistant
The internal lining pipe 1 of erosion, wherein internal lining pipe is made of ceramics or ceramic matric composite, and outer barrel includes the be connected to each other
One cylinder 171 and the second cylinder 172, the first inner barrel have cavity and are metal cylinder, and cavity is built-in with for absorbing heat
The radiant tube group 3 of amount, the second cylinder 172 is the transformable expansion joint of axial length, so that the thermal deformation amount of the first cylinder 171 can
It is absorbed by the second cylinder 172；Internal lining pipe 1 is docked by the first bushing pipe 1-1, the second bushing pipe 1-2, at the abutment joint 1-4 of the two
Corresponding end is respectively arranged with the sealing pair being made of slotting platform and slot corresponding with the slotting platform, is filled in the sealing pair close
Closure material 1-2, so that the heat type variable of internal lining pipe can be absorbed by sealing pair；Retaining ring 10 and resistance to height are enclosed on the outside of abutment joint
Warm sealant 12, the lower end of refractory seals layer 12 are provided with seal stopper ring 14, so that this is unstressed from close under the condition of high temperature
Seal up the sealing material in sealing pair and sealing pair of the sealing effect inside and outside riser by expanded by heating under engaged state
Material realizes that the sealing effect under low-temperature condition inside and outside the unstressed self-tightening sealing tedge is by the backer ring biases high temperature resistant after shrinkage
Sealant is realized in abutment joint.Heat is scattered and disappeared by outer barrel in order to prevent, and insulating layer is enclosed with outside outer barrel；Second cylinder
It is made of sequentially connected expansion bellows 8, adapter tube 16 and the second shell flange 9.
In conjunction with shown in Fig. 2-Fig. 4, the first cylinder is by the internal layer cylinder 15 of end panel 2 and same metal material, outer layer cylinder 6
Composition, it is ensured that internal layer cylinder, the swell increment of outer layer cylinder are identical when temperature alternating in its operational process, eliminate due to material difference
And bring expands additional stress；The outer diameter of internal layer cylinder is less than radiant tube group, and the internal diameter of outer layer cylinder is greater than radiant tube group, internal layer cylinder
It is set in outer layer cylinder and the two is coaxial, end panel connects the both ends of internal layer cylinder outer layer cylinder, thus the shape in the first cylinder
At can gap setting radiant tube group cavity.
Expansion 8 both ends of bellows are connected separately with installation baffle 7, the installation baffle and first cylinder opposite with the first cylinder
Connection, so that the thermal deformation amount of the first cylinder is transferred to expansion bellows via the installation baffle.It is carrying on the way, in order to prevent
It expands bellows and scratches abrasion with other component due to jolting, so by fixing bolt to installation baffle or even expansion
Bellows is fixed.
Abutment joint 1-4 between first bushing pipe, the second bushing pipe is corresponding with the second cylinder, so that retaining ring and high temperature resistant are close
Sealing is in expansion bellows, and correspondingly, expansion inside diameter of bel is greater than liner pipe outside diameter.In order to prevent expansion bellows by
High temperature influences, and the thermal insulation layer 18 for forming Thermal protection to expansion ripple pipe is additionally provided between internal lining pipe and expansion bellows.
The emptying adapter tube 5 of connection cavity and exterior space is provided with outside first cylinder.Emptying adapter tube 5 can discharge at any time
Pressure change in temperature changing process causes gas to pass in and out to realize and extraneous pressure balance.
The lower port 19 of radiant tube group is connect with external water inlet concetrated pipe, and the upper port 20 of radiant tube group and carbonated drink are mixed
The connection of phase outlet header.Water inlet concetrated pipe is connect by pipeline with external inlet manifold manifold trunk, the outlet of carbonated drink mixed phase
Concetrated pipe is connect by pipeline with externally ported concetrated pipe manifold trunk, and outlet header manifold trunk is connect by pipeline with drum,
Jet chimney is connected on drum, the steam in jet chimney is connected by pumping intake piping in drum bottom and recycled for doing work
Water pump, water circulating pump are connect by water pump outlet pipe with inlet manifold manifold trunk, so that the present invention can be waste to coke oven tedge
Coal gas high-temperature waste heat is efficiently utilized.
The manufacturing method of unstressed self-tightening sealing tedge provided by the invention, specifically comprises the following steps:With Δ L=α
Δ tL calculates thermal expansion amount of the internal lining pipe under Δ t temperature change and as datum length, and wherein α is the heat of internal lining pipe
The coefficient of expansion, socket depth, the slotting platform length of sealing pair are greater than this datum length；It assembles and examines outer barrel: will be described
Together, with flanged plate sealing both ends flange, inflation examination is close for first cylinder, the second barrel soldering, does not leak for qualification；In detection
Bushing pipe air-tightness: sealing material is added in the sealing pair slot bottom of the first bushing pipe, the second bushing pipe, using tooling by the first bushing pipe
It is good by installation length plugging in fitting at socket joint seal groove with the second bushing pipe, with blind flange sealing both ends ring flange, filler is compressed,
Both the stomata ventilation examination being equipped on blind flange is close, does not leak for qualification, dismantle, it is standby that sealing material is inserted in sealing pair slot
With；Corresponding with the first cylinder and the first bushing pipe with sealing pair slot is packed into the outer barrel；To second
Fill airtight and watertight padding, retaining ring, thermal insulation layer in the expansion joint of cylinder: the installation baffle internal diameter of self-expanding section insert above-mentioned filler and
Retaining ring, and corresponding filler is made to be higher by expansion joint ring flange；It is incorporated in corresponding second bushing pipe of the second cylinder, and will be higher by swollen
The filler of swollen section ring flange flattens, so that expansion joint ring flange is close to the second bushing pipe ring flange 11.
The present invention is particularly suitable for height by designing in the structure for being adapted to any tedge waste heat recycling system
Quality recycles waste heat and generates high steam；The thermal deformation amount of outer barrel of the invention absorbs by the second cylinder, the heat of internal lining pipe
Deformation quantity can be absorbed by sealing pair, eliminated and be subject in tedge operational process to pipe-line system additional stress and tedge
Reaction force, so as to avoid due to tedge and pipe-line system junction due to aforementioned active force cause it is damaged and leakage
It is dangerous；To make waste heat utilization system structure stress optimize, high pressure can be born, the service life is long, and safety is secure；Knot of the present invention
Structure is compact, easy to operate, operating cost is low, and system is independent, can Cellular manufacturing processing.
Claims (10)
1. a kind of unstressed self-tightening sealing tedge connects coke oven and bridge tube, which is characterized in that including outer barrel and setting
In the intracorporal high temperature resistant of outer cylinder, corrosion resistant internal lining pipe, the outer barrel includes the first cylinder and the second cylinder being connected to each other,
First inner barrel has cavity and is metal cylinder, and the cavity is built-in with the radiant tube group for absorbing heat, institute
Stating the second cylinder is the transformable expansion joint of length, so that the thermal deformation amount of the first cylinder can be absorbed by the second cylinder；In described
Bushing pipe is docked by the first bushing pipe, the second bushing pipe, at the abutment joint of the two corresponding end be respectively arranged with by slotting platform and with
The sealing pair of the corresponding slot composition of the slotting platform, the sealing pair is interior to be filled with sealing material, thus the thermal deformation of the internal lining pipe
Amount can be absorbed by the sealing pair；Retaining ring and refractory seals layer are enclosed on the outside of the abutment joint, thus the condition of high temperature
Sealing pair by expanded by heating under engaged state of sealing effect inside and outside the lower unstressed self-tightening sealing tedge and
Sealing material in sealing pair is realized, after the sealing effect under low-temperature condition inside and outside the unstressed self-tightening sealing tedge is by shrinkage
Backer ring biases refractory seals layer realized in the abutment joint.
2. unstressed self-tightening sealing tedge according to claim 1, which is characterized in that first cylinder is by internal layer
Cylinder, outer layer cylinder and end panel composition, the outer diameter of the internal layer cylinder are less than the radiant tube group, and the internal diameter of the outer layer cylinder is big
In the radiant tube group, the internal layer cylinder is set in the outer layer cylinder and the two is coaxial, described in the end panel connection
The both ends of internal layer cylinder outer layer cylinder, thus in the first cylinder formed can gap setting radiant tube group cavity.
3. unstressed self-tightening sealing tedge according to claim 2, which is characterized in that second cylinder is by successively connecting
Expansion bellows, adapter tube and the shell flange composition connect.
4. unstressed self-tightening sealing tedge according to claim 3, which is characterized in that the expansion bellows both ends point
It is not connected with installation baffle, the installation baffle opposite with the first cylinder is connect with first cylinder, thus first cylinder
Thermal deformation amount be transferred to the expansion bellows via the installation baffle.
5. unstressed self-tightening sealing tedge according to claim 4, which is characterized in that first bushing pipe, the second lining
Abutment joint between pipe is corresponding with second cylinder, so that the retaining ring and refractory seals layer are in the dilatational wave
In line pipe, correspondingly, the expansion inside diameter of bel is greater than the liner pipe outside diameter.
6. unstressed self-tightening sealing tedge according to claim 5, which is characterized in that the internal lining pipe and the expansion
The thermal insulation layer for forming protection to expansion ripple pipe is additionally provided between bellows.
7. unstressed self-tightening sealing tedge according to claim 1, which is characterized in that setting outside first cylinder
There is the emptying for being connected to the cavity and exterior space to take over.
8. unstressed self-tightening sealing tedge according to claim 1, which is characterized in that the lower port of the radiant tube group
It is connect with external water inlet concetrated pipe, the upper port of radiant tube group is connect with carbonated drink mixed phase outlet header.
9. unstressed self-tightening sealing tedge according to claim 1, which is characterized in that the internal lining pipe using ceramics or
Person's ceramic matric composite is made, and is enclosed with insulating layer outside the outer barrel.
10. a kind of manufacturing method of unstressed self-tightening sealing tedge described in claim 1, which is characterized in that including as follows
Step:Thermal expansion amount of the internal lining pipe under Δ t temperature change is calculated with Δ L=α Δ tL and as datum length,
Middle α is the thermal expansion coefficient of internal lining pipe, and socket depth, the slotting platform length of sealing pair are greater than this datum length；It assembles and examines
Outer barrel: together by first cylinder, the second barrel soldering, with flanged plate sealing both ends flange, inflation examination is close, does not leak
For qualification；It detects internal lining pipe air-tightness: sealing material is added in the sealing pair slot bottom of the first bushing pipe, the second bushing pipe, adopts
It is with tooling that the first bushing pipe and the second bushing pipe is good by installation length plugging in fitting at socket joint seal groove, with blind flange sealing both ends
Both ring flange compresses filler, and the stomata ventilation examination being equipped on blind flange is close, does not leak for qualification, dismantle, in sealing pair slot
Interior filling sealing material is spare；It will be described in corresponding with the first cylinder and the first bushing pipe loading with sealing pair slot
Outer barrel；Airtight and watertight padding, retaining ring, thermal insulation layer: the installation baffle internal diameter of self-expanding section are filled into the expansion joint of the second cylinder
Above-mentioned filler and retaining ring are inserted, and corresponding filler is made to be higher by expansion joint ring flange；It is incorporated in the second cylinder corresponding
Two bushing pipes, and the filler for being higher by expansion joint ring flange is flattened, so that expansion joint ring flange is close to the second bushing pipe flange.
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| CN201510223465.8A CN106190187B (en) | 2015-05-06 | 2015-05-06 | A kind of unstressed self-tightening sealing tedge and its manufacturing method |
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| CN201510223465.8A CN106190187B (en) | 2015-05-06 | 2015-05-06 | A kind of unstressed self-tightening sealing tedge and its manufacturing method |
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| CN106190187B true CN106190187B (en) | 2019-03-19 |
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| CN110822425A (en) * | 2019-11-01 | 2020-02-21 | 苏州新长光热能科技有限公司 | Protection device capable of prolonging service life of radiant tube |
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| JPH07188664A (en) * | 1993-12-27 | 1995-07-25 | Nkk Corp | Recovering method for sensible heat of crude coke oven has |
| CN2545555Y (en) * | 2002-05-14 | 2003-04-16 | 高国纯 | Vertical tube heat exchanger |
| CN101706217A (en) * | 2009-09-17 | 2010-05-12 | 无锡市东方环境工程设计研究所有限公司 | No-leakage alternating thermal stress resisting heat exchanger |
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| CN106190187A (en) | 2016-12-07 |
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