CN109654467A - A kind of combustion and steam occurrence of equipment - Google Patents
A kind of combustion and steam occurrence of equipment Download PDFInfo
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- CN109654467A CN109654467A CN201910048469.5A CN201910048469A CN109654467A CN 109654467 A CN109654467 A CN 109654467A CN 201910048469 A CN201910048469 A CN 201910048469A CN 109654467 A CN109654467 A CN 109654467A
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- steam
- heat exchanger
- combustion
- fire row
- tube
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 54
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 53
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000000498 cooling water Substances 0.000 claims abstract description 27
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 19
- 239000007789 gas Substances 0.000 claims description 27
- 239000002737 fuel gas Substances 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 11
- 230000008676 import Effects 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000010025 steaming Methods 0.000 claims 1
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 36
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000009834 vaporization Methods 0.000 abstract description 2
- 230000008016 vaporization Effects 0.000 abstract description 2
- 239000000567 combustion gas Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 238000009413 insulation Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005476 soldering Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 230000008646 thermal stress Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- DOTMOQHOJINYBL-UHFFFAOYSA-N molecular nitrogen;molecular oxygen Chemical compound N#N.O=O DOTMOQHOJINYBL-UHFFFAOYSA-N 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/48—Nozzles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
Abstract
The invention discloses a kind of combustion and steam occurrence of equipment, including rack and one group or more in the rack of steam generation mould group is set, the steam generation mould group includes combustion chamber and the indoor finned heat exchanger of the burning, shell and tube light pipe heat exchanger and low nitrogen fire row combustor are successively arranged in from top to bottom；The finned heat exchanger is equipped with cooling water inlet and hot water outlet；The shell and tube light pipe heat exchanger is equipped with hot water inlet and steam (vapor) outlet；The hot water outlet is connected with the hot water inlet；Steam generating equipment of the invention, steam generation mould group are placed on the middle layer of combustion chamber as vaporization layer using shell and tube light pipe heat exchanger, and the heat that cold water directly absorbs is more abundant, can be with the steam of output higher quality.The bottom of combustion chamber reduces the generation of nitrogen oxides, energy conservation and environmental protection using completely new low nitrogen fire row combustor while improving heat exchange amount.
Description
Technical field
The present invention relates to steam generating equipment technical fields, and in particular to a kind of combustion and steam occurrence of equipment.
Background technique
Under the promotion of national " coal changes gas " policy, in recent years, combustion and steam occurrence of equipment has been widely used in state
In the production and life of the people.Common modular combustion and steam occurrence of equipment, by multiple groups (generally 1 to 4 groups) steam generation mould
Group forms, mutually indepedent between each group, can be used alone.Every group of steam generation mould group and the three-level steam list similar by structure
First unit is connected by copper pipe and is formed, and heat exchanger in three-level steam unit unit is made to be interconnected, be connected into one it is single logical
Road.By taking three layers of finned heat exchanger of three-level as an example, cold water enters from the heat exchanger of top layer, followed by the heat exchange of first order top layer
Device, second level top layer heat exchanger, third level top layer heat exchanger connect the outlet and third of third level top layer heat exchanger by copper pipe
The entrance of pole middle layer heat exchanger, water flow successively pass through third pole middle layer, second level middle layer, first order middle layer again；It will
First order middle layer is connected with the bottom heat exchanger of the first order with copper pipe, and the steam water interface after water flow is heated is again successively by the
Level-one bottom heat exchanger, second level bottom heat exchanger, third level bottom heat exchanger absorb heat and become steam from third level bottom
Outlet flows to steam outlet pipe.
But the drawbacks of way, is: one, first, second, third grade steam unit unit between using specially shaped copper tube it is connected,
Stress can be generated after pipe fitting is heated, being used for multiple times causes pipe fitting junction that certain deformation occurs, and is easy leakage in use process
There is leak or gas leak phenomenon in medium in pipe.Two, in special-shaped connecting tube process there are tolerance, cause any two-stage it
Between Hard link there are deviations, it is not easy to assemble, need live manual tension sometimes or be bent these special-shaped connecting tubes.
Three, fitting joint is more, and labor intensive is more.Four, after the fin in the indoor finned heat exchanger of burning absorbs heat, without enough
Refrigerant (water for flowing through pipeline) heat is taken away, after heated for a long time, fin is easy to melt adhesion, causes heat exchanger heated not
, lead to heat exchanger local dry burning, burn out leak after heat exchanger.Five, finned heat exchanger is generally welded by more stainless steel tubes
The fin of extension forms, and in each own connector imported and exported each other in both ends, remaining pipe fitting is all the curved bend by both ends
Head is joined end to end pipe fitting by soldering processes two-by-two, conspires to create a water-flowing path, the arc elbow of soldering is in use
Internal high pressure is born again after heated, is easy cracking, the case where leak occurs.Six, path of the cold water Jing Guo heat exchanger tube is short, inhales
It is inadequate to receive heat, causes the steam quality of output not high, water content is big.Seven, it is limited by equipment volume and heat exchanger volume, mould
The evaporation capacity of block formula separate unit steam generator is limited.Eight, the nitrogen oxides Yuan Chao state generated after the burning of traditional fire row combustor
Family's discharge standard, it is not environmentally friendly enough.
Summary of the invention
The present invention be directed in place of the deficiencies in the prior art, provide a kind of completely new combustion and steam occurrence of equipment, steam
Mould group occurs, three layers of finned heat exchanger in the prior art is replaced using improved shell and tube light pipe heat exchanger, and using low
Nitrogen fire row combustor replaces original common fire row combustor, to solve various drawbacks present in background technique.
The present invention is achieved by the following technical solutions:
Including rack and one group or more in the rack of steam generation mould group is arranged in a kind of combustion and steam occurrence of equipment,
The steam generation mould group includes combustion chamber and the indoor finned heat exchanger of the burning, shell and tube is successively arranged in from top to bottom
Light pipe heat exchanger and low nitrogen fire row combustor；The finned heat exchanger is equipped with cooling water inlet and hot water outlet；The tubulation
Formula light pipe heat exchanger is equipped with hot water inlet and steam (vapor) outlet；The hot water outlet is connected with the hot water inlet.
Combustion and steam occurrence of equipment with above structure, steam generation mould group are changed using improved shell and tube light pipe
Hot device replaces three layers of finned heat exchanger in the prior art, and is serially connected with the finned heat exchanger of combustion chamber top layer,
The heat that cold water directly absorbs is more abundant, can be with the steam of output higher quality.It is put using completely new low nitrogen fire row combustor
The bottom in combustion chamber is set as baking layer, the generation of nitrogen oxides, energy conservation and environmental protection are reduced while improving heat exchange amount.
Specifically, the quantity of the finned heat exchanger, tubular heat exchanger and low nitrogen fire row combustor is one.
Further, the shell and tube light pipe heat exchanger includes heat-exchanging tube bundle and the remittance that the heat-exchanging tube bundle both ends are arranged in
Flowing plate；The heat exchange tube layer that the heat-exchanging tube bundle is parallel to each other by one layer or more forms；The heat exchange tube layer is set side by side by several
The set of heat exchange tubes set at, and in the heat exchange tube layer two-by-two heat exchanger tube by the connection of the collecting tray that is arranged in the cylinder manifold,
The collecting tray is staggeredly arranged at intervals in cylinder manifold；Manifold port is additionally provided on the cylinder manifold.
Shell and tube light pipe heat exchanger with above structure is different from the finned heat exchanger that combustion chamber top layer is arranged in, column
Tubular type light pipe heat exchanger shortens the spacing between heat exchanger tube and pipe without fin, solves current steam generation mould
Because finned heat exchanger is close to fire row, the heat of fin cannot be transmitted to heat exchanger tube in time and be easy to cause the defect of deformation group；
At the same time, it by setting cylinder manifold and collecting tray, allows the heat exchanger tube in heat exchange tube layer to be also serially connected between any two, eliminates
Special piece interconnected between different pipes, is greatly saved the cost of labor of installation, while also avoiding pipe fitting joint leakage
The problem of water.In addition, collecting tray is arranged in shell and tube light pipe heat exchanger in cylinder manifold, cylinder manifold then is closed with end plate again, no
It is only capable of being applicable in soldering processes, also adapts to laser Welding.
Specifically, the length of the heat exchanger tube is at one meter or more.
Specifically, the heat exchanger tube is stainless steel material, it can high temperature high voltage resistant.
Specifically, the cylinder manifold can be integrally formed.
Specifically, the manifold port is cold medium import or thermal medium outlet.
Further, further include heat exchange tube fixer, be evenly equipped with and the heat exchange tube diameter on the heat exchange tube fixer
The through-hole to match, the both ends of the heat exchanger tube extend through the through-hole.
Specifically, the heat exchange tube fixer be evenly arranged with along heat exchanger tube pipeline axis direction it is multiple.
It is welded by the fixed heat exchanger tube of heat exchange tube fixer, and at the both ends of heat-exchanging tube bundle using integrally formed cylinder manifold
Thermal stress fixed, that pipe fitting is subject to when balanced burning；Persistently there is heat transferring medium to flow through entire heat-exchanging tube bundle when using in addition, it can
Prevent pipe fitting temperature distortion from damaging.In addition, fin is had in finned heat exchanger in the prior art between heat exchanger tube and pipe, pipe
It is not supported mutually between pipe.And the finned heat exchanger in improved shell and tube light pipe heat exchanger substitution middle layer is used, and
Setting heat exchange tube fixer heat exchanging tube bank is fixed, can be by the heat exchanger in multistage steam monoblock in the prior art
Level-one is merged into, heat exchange pipeline is elongated, eliminates the heat exchanger pipe fitting interconnected in unit not at the same level.
Further, the low nitrogen fire row combustor includes fire row group and the fire row combustion gas that is arranged in below the fire row group
Pipe, the fire row group are made of multiple fire row units being set side by side；The top of the fire row unit is equipped with several fire row holes, bottom
End is equipped with double air inlets, and inside is equipped with the air cavity for being connected to several fire row holes and double air inlets；It is right in the fire row fuel gas conduit
The position of double air inlets is answered to be equipped with gas nozzle；The fire row unit is concavely provided with for the air cavity to be separated into first
The cross groove of air cavity and the second air cavity.
By the way that double air inlets are arranged, gas proportion is increased, so that burning is mixed more abundant, to reduce nitrogen oxidation
The discharge of object.
By recessed cross groove, two air cavitys can will be divided into inside fire row unit, refine the distribution of combustion gas, kept away
Exempt from combustion gas and concentrated on a certain point combustion, substantially increased combustion rate, reduces the discharge of nitrogen oxides.
It further, further include water-cooling system, the water-cooling system includes multiple thermally conductive sheet groups being set side by side and successively
Through the cooling water pipe of the multiple thermally conductive sheet group, the thermally conductive sheet group is by setting up separately on the outside of first air cavity and the second air cavity
The first thermally conductive sheet and the second thermally conductive sheet composition.
Water cooling is carried out to fire row group by cooling water pipe, greatly reduces the temperature of fire row hole surface, so that nitrogen oxidation is closed
The ambient temperature conditions that object generates reduce, to reduce the discharge of nitrogen oxides.
Further, it is additionally provided with fuel gas inlet in the fire row fuel gas conduit, is connected with gas inlet at the fuel gas inlet
The pipeline of pipe, the gas inlet pipe is equipped with gas ratio valve.
It can control gas supply amount by the way that gas ratio valve is arranged, to adjust the degree of burning.
Further, it is connected with water inlet pipe at the cooling water inlet, the pipeline of the water inlet pipe is equipped with water pump, unidirectional
Valve, solenoid valve and water-flow signal sensor；The steam outlet is connected with steam output pipe, the pipeline of the steam output pipe
It is equipped with steam pressure sensor and temperature sensor.
Further, the top of the combustion chamber is equipped with suction opening, is equipped with exhaust fan at the exhaust outlet；The exhaust fan
Lower end and finned heat exchanger between be additionally provided with deflector.
Deflector, which is arranged, can help the air draught of exhaust fan uniform, prevent uneven caused local temperature higher, reduce
The generation of nitrogen oxides.
Further, the inner wall of the combustion chamber is additionally provided with thermal insulation board.
Specifically, the thermal insulation board is thermostable heat insulation blanket plate.
Thermal insulation board is set by wall in the combustion chamber, can prevent flame when burning from heating combustion chamber outline border, externally generate heat
Radiation, waste of energy；It can guarantee that the skin temperature of complete machine is not high simultaneously, avoid the accidental scalding in use process.
Further, be arranged above and below setting or left-right situs of the steam generation mould group is arranged in rack.
Further, the control circuit board that each steam generation mould group is equipped with independent control is corresponded in the rack.
Compared with prior art, the beneficial effects of the present invention are:
1, combustion and steam occurrence of equipment of the invention, steam generation mould group use improved shell and tube light pipe heat exchanger
The middle layer of combustion chamber is placed on as vaporization layer, and is serially connected with the finned heat exchanger of combustion chamber top layer, is greatly increased
Heat exchanging pipe path, the heat that cold water directly absorbs is more abundant, can be with the steam of output higher quality.
2, combustion and steam occurrence of equipment of the invention is connected before allowing using copper pipe by the way that collecting tray is arranged in cylinder manifold
The place connect also becomes the place directly to exchange heat now, and the area of entire heat exchange increases.The heat exchange area under same volume
It increases, evaporation capacity can be improved.In addition, collecting tray is arranged in heat exchanger in cylinder manifold, then cylinder manifold is closed with end plate, not only
Soldering processes can be applicable in, laser Welding is also adapted to.
3, combustion and steam occurrence of equipment of the invention, by the fixed heat exchanger tube of heat exchange tube fixer, and in heat-exchanging tube bundle
Both ends are welded and fixed using integrally formed cylinder manifold, the thermal stress that pipe fitting is subject to when balanced burning；Continue when using in addition
There is heat transferring medium to flow through entire heat-exchanging tube bundle, prevents pipe fitting temperature distortion from damaging.In addition, being changed using improved shell and tube light pipe
Hot device replaces finned heat exchanger, and heat exchange tube fixer heat exchanging tube bank is arranged and is fixed, can will be in the prior art more
Heat exchanger in grade steam unit unit merges into level-one, elongates heat exchange pipeline, eliminates the heat exchanger in unit not at the same level
Pipe fitting interconnected, in the cost of labor for saving installation while the problem of also avoid pipe fitting joint leak.
4, combustion and steam occurrence of equipment of the invention, the bottom using low nitrogen fire row combustor as combustion chamber, by
Gas nozzle is arranged in the position of double air inlets, significantly increases gas proportion, changes the proportion between combustion gas and air, makes to fire
Burning mixes more abundant, to reduce the exhaust emission of nitrogen oxides, achievees the effect that low nitrogen.
5, combustion and steam occurrence of equipment of the invention, by the way that water-cooling system, cooling water is arranged in low nitrogen fire row combustor
Pipe can be by the heat transfer of thermally conductive sheet group to carry out water cooling to fire row group, and then has achieved the effect that fast cooling, so that nitrogen oxygen
The ambient temperature conditions that compound generates reduce, and effectively reduce the discharge of nitrogen oxides, are more energy-saving and environmentally friendly.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the overall structure diagram of combustion and steam occurrence of equipment of the present invention；
Fig. 2 is the overall structure diagram of steam generation mould group in Fig. 1；
Fig. 3 is the schematic diagram of internal structure of Fig. 2 steam generation mould group；
Fig. 4 is the structural schematic diagram of shell and tube light pipe heat exchanger in Fig. 3；
Fig. 5 is the partial enlarged view in the portion A in Fig. 4；
Fig. 6 is the structural schematic diagram of low nitrogen fire row combustor in Fig. 3；
Fig. 7 is the structural schematic diagram of fire row unit in Fig. 6.
Wherein, the meaning of appended drawing reference is as follows:
Rack 10, steam generation mould group 20, finned heat exchanger 11, cooling water inlet 12, hot water outlet 13, shell and tube light pipe
Heat exchanger 21, heat-exchanging tube bundle 211, cylinder manifold 212, collecting tray 2121, manifold port 2122, heat exchange tube fixer 213, steam (vapor) outlet
22, hot water inlet 23, low nitrogen fire row combustor 31, fire row unit 311, fire row hole 3111, fire row fuel gas conduit 312, gas nozzle
3121, cooling water pipe 313, the first thermally conductive sheet 3141, the second thermally conductive sheet 3142, the first air inlet 31121, the second air inlet
31122, the first air cavity 31131, the second inlet chamber 31132, cross groove 315, fuel gas inlet 32, cooling water inlet 33, cold
But water out 34, burning torch 35, pulse igniter 36, main water inlet tube 41, water inlet pipe 42, steam output pipe 43, solenoid valve 44,
Cooling water inlet pipe 51, cooling water outlet pipe 52, main gas inlet pipe 61, gas inlet branch pipe 62, gas ratio valve 63, exhausting
Machine 70, control circuit board 80.
Specific embodiment
In order to better understand and implement, with reference to the accompanying drawings and examples, to a specific embodiment of the invention make into
One step detailed description.Following embodiment is merely to illustrate the present invention, is not intended to limit the scope of the invention.
The invention discloses a kind of combustion and steam occurrence of equipment, as shown in Figure 1-3, include rack 10 and setting in the rack
One group or more of steam generation mould group 20 in 10, in the present embodiment, 20 quantity of steam generation mould group are 4 groups, and up and down
Left-right situs is arranged in the rack 10；The steam generation mould group 20 is including combustion chamber and the burning is successively arranged in from top to bottom
Indoor finned heat exchanger 11, shell and tube light pipe heat exchanger 21 and low nitrogen fire row combustor 31；The finned heat exchanger 11
One end is equipped with cooling water inlet 12, and the other end is equipped with hot water outlet 13；The hot water outlet is corresponded in the shell and tube light pipe heat exchanger 21
One end of 13 positions is equipped with hot water inlet 23, and the other end is equipped with steam (vapor) outlet 22；The hot water outlet 13 and the hot water inlet
23 are connected to by a connecting tube；It is connected with water inlet pipe 42 at the cooling water inlet 12, the pipeline of the water inlet pipe 42 is equipped with
Solenoid valve 44, check valve and water-flow signal sensor (not shown), the solenoid valve 44 are connected with main water inlet tube 41, should
The pipeline of main water inlet tube 41 is equipped with water pump (not shown).Cold water first passes around finned after the entrance of cooling water inlet 12
After heat exchanger 11 is preheated, flowed out from hot water outlet 13；Then from the hot water inlet 23 in shell and tube light pipe heat exchanger 21 into
Enter, carries out heating and gasifying by shell and tube light pipe heat exchanger 21, and come out from the steam (vapor) outlet of the other end 22；The steam (vapor) outlet 22
Place is connected with steam output pipe 43, and the pipeline of steam output pipe 43 is equipped with steam pressure sensor (not shown).The wing
Plate heat interchanger 11 and shell and tube light pipe heat exchanger 21 form unique path between cooling water inlet 12 and steam (vapor) outlet 22, heat exchange
Pipeline path lengthens significantly, and the heat that cold water directly absorbs is more abundant, can be with the steam of output higher quality.
Refering to Fig. 4-5, which includes heat-exchanging tube bundle 211 and is arranged in the heat-exchanging tube bundle 211
The cylinder manifold 212 at both ends；The heat exchange tube layer that the heat-exchanging tube bundle 211 is parallel to each other by one layer or more forms.In the present embodiment,
The heat-exchanging tube bundle 211 is made of three layers of heat exchange tube layer, and heat exchanger tube interlaced arrangement between layers.By the way that the cloth that interlocks is arranged
The heat exchange tube layer set is more advantageous to the transmitting of heat so that there are gaps between layers for heat exchanger tube.If the heat exchange tube layer by
The set of heat exchange tubes that dry root is set side by side at.Preferably, which is stainless steel material, can high temperature resistant.It is set on the cylinder manifold 212
There is manifold port 2122 and is sequentially connected in series several collecting trays 2121 of heat exchanger tube two-by-two.Specifically, the manifold port 2122 is cold medium
Import or thermal medium outlet.In the present embodiment, the manifold port is respectively hot water inlet 23 or steam (vapor) outlet 22.Pass through setting
Collecting tray 2121 and manifold port 2122, allow heat exchanger tube to be also serially connected between any two, eliminate interconnected between different pipes
Special piece, the problem of the cost of labor of installation is greatly saved, while also avoiding pipe fitting joint leak.In addition, further including
Exchange heat tube fixer 213, is evenly distributed with the through-hole to match with the heat exchange tube diameter on the heat exchange tube fixer 213,
The both ends of the heat exchanger tube extend through through-hole.By the fixed heat exchanger tube of heat exchange tube fixer 213, effectively prevents heat exchanger tube and exist
Stress is generated when heat distortion, avoids damage to entire heat exchanger structure.The heat exchange tube fixer 213 is along heat exchanger tube conduit axis side
It is multiple to being evenly arranged with.In the present embodiment, which is 5.It is solid by heat exchange tube fixer 13
Determine heat exchanger tube, and be welded and fixed at the both ends of heat-exchanging tube bundle 211 using integrally formed cylinder manifold 212, when balanced burning manages
The thermal stress that part is subject to；Persistently there is heat transferring medium to flow through entire heat-exchanging tube bundle 211 when using in addition, pipe fitting temperature distortion can be prevented
Damage.Replace the finned heat exchanger in middle layer using improved shell and tube light pipe heat exchanger 21, and heat exchange tube fixer is set
13 exchange heat pipe bundles 211 are fixed, and can elongate heat exchange pipeline, the heat exchanger eliminated in unit not at the same level is interconnected
Pipe fitting.
Refering to Fig. 6-7, which includes fire row group and the fire row being arranged in below fire row group combustion
Tracheae 312, the fire row group are made of multiple fire row units 311 being set side by side；The top of the fire row unit 311 is equipped with several fire
Round 3111, it is preferred that fire row hole 3111 is poroid in kidney-shaped；The bottom end of the fire row unit 311 is additionally provided with the first air inlet 31121
With the second air inlet 31122, inside is equipped with the air cavity for being connected to several the fire row holes 3111 and two air inlets；Fire row fuel gas conduit
The position that 312 top corresponds to double air inlets is equipped with gas nozzle 3121；By the way that double air inlets are arranged, combustion gas is significantly increased
Ratio makes burning mix more abundant, to reduce nitrogen oxides to change the proportion between combustion gas and air
Exhaust emission achievees the effect that low nitrogen.The center of the lower end of the fire row fuel gas conduit 312 is equipped with fuel gas inlet 32, the combustion gas
It is connected with gas inlet branch pipe 62 at import 32, gas ratio valve 63 is additionally provided on the pipeline of the gas inlet branch pipe 62, the combustion
The other end of gas proportioning valve 63 is equipped with main gas inlet pipe 61.It can control the supply of combustion gas by the way that gas ratio valve 63 is arranged,
To adjust burning degree.In addition, the fire row unit 311 is also recessed with for the air cavity to be separated into the first air cavity 31131
With the cross groove 315 of the second air cavity 31132.By the way that the first air cavity 31131 and the second air cavity 31132 that are isolated is arranged,
The distribution for having refined combustion gas avoids combustion gas from being gathered in a certain point combustion, improves combustion rate, effectively reduces the row of nitrogen oxides
It puts.
Referring again to Fig. 6-7, which further includes water-cooling system, which includes multiple setting side by side
The thermally conductive sheet group and cooling water pipe 313 set, the thermally conductive sheet group is by setting up separately in 31132 outside of the first air cavity 31131 and the second air cavity
The first thermally conductive sheet 3141 and the second thermally conductive sheet 3142 composition, it is preferred that first thermally conductive sheet 3141 and the second thermally conductive sheet 3142
It is the high sheet metal of heating conduction.First thermally conductive sheet 3141 is equipped with the first mounting hole, sets on second thermally conductive sheet 3142
There is the second mounting hole, cooling water pipe 313 sequentially passes through multiple first mounting holes and multiple second mounting holes are fixed, preferably
, which is in U-shape.The cooling water pipe 313 is equipped with cooling water inlet 33 and cooling water outlet 34, the cooling water
Import 33 is connected with cooling water inlet pipe 51, which is connected with cooling water outlet pipe 52.By in fire row group
Water-cooling system is set, and cooling water pipe 313 can carry out water to fire row group by the heat transfer of multiple thermally conductive sheet groups being set side by side
It is cold, and then achieved the effect that fast cooling, effectively reduce the discharge of nitrogen oxides.
In addition, being additionally provided with burning torch 35 in the low nitrogen fire row combustor 31, it is preferred that the burning torch 35 referring again to Fig. 2-3
It is three, combustion chamber is equipped with the pulse igniter 36 being electrically connected with the burning torch 35.Exhausting is additionally provided at the top of the combustion chamber
Mouthful, exhaust fan 70 is equipped at the suction opening, it is preferred that the exhaust fan 70 is three.The lower end of exhaust fan 70 is changed with finned
It is additionally provided with deflector (not shown) between hot device 11, the air draught of exhaust fan 70 can be helped uniform by the way that deflector is arranged,
It prevents uneven caused local temperature higher, reduces the generation of nitrogen oxides.The inner wall of combustion chamber is additionally provided with four sides and wraps up
Thermal insulation board (not shown), it is preferred that the thermal insulation board be thermostable heat insulation blanket plate, by be arranged thermal insulation board, can prevent
Flame heats combustion chamber outline border when only burning, and externally generates heat radiation, waste of energy；It can guarantee the skin temperature of complete machine simultaneously
It is not high, avoid the accidental scalding in use process.
The technical means disclosed in the embodiments of the present invention is not limited only to technological means disclosed in above embodiment, further includes
Technical solution consisting of any combination of the above technical features.It should be pointed out that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (10)
1. a kind of combustion and steam occurrence of equipment, which is characterized in that including rack and one group or more in the rack of steam is arranged in
Mould group occurs, the steam generation mould group includes combustion chamber and the indoor fin type heat exchange of the burning is successively arranged in from top to bottom
Device, shell and tube light pipe heat exchanger and low nitrogen fire row combustor；The finned heat exchanger is equipped with cooling water inlet and hot water outlet；
The shell and tube light pipe heat exchanger is equipped with hot water inlet and steam (vapor) outlet；The hot water outlet is connected with the hot water inlet
It is logical.
2. combustion and steam occurrence of equipment according to claim 1, which is characterized in that the shell and tube light pipe heat exchanger includes
Heat-exchanging tube bundle and the cylinder manifold that the heat-exchanging tube bundle both ends are set；The heat exchange that the heat-exchanging tube bundle is parallel to each other by one layer or more
Tube layer composition；The set of heat exchange tubes that is set side by side by several of heat exchange tube layer is at and heat exchanger tube two-by-two in the heat exchange tube layer
By the collecting tray connection being arranged in the cylinder manifold, the collecting tray is staggeredly arranged at intervals in cylinder manifold；The confluence
Manifold port is additionally provided on plate.
3. combustion and steam occurrence of equipment according to claim 2, which is characterized in that it further include heat exchange tube fixer, it is described
The through-hole to match with the heat exchange tube diameter is evenly equipped on heat exchange tube fixer, the both ends of the heat exchanger tube extend through described
Through-hole.
4. combustion and steam occurrence of equipment according to claim 2 or 3, which is characterized in that the low nitrogen fire row combustor packet
The fire row fuel gas conduit for including fire row group and being arranged in below the fire row group, the fire row group is by multiple fire row units being set side by side
Composition；The top of the fire row unit is equipped with several fire row holes, and bottom end is equipped with double air inlets, and inside, which is equipped with, is connected to several fire
The air cavity of round and double air inlets；The position that double air inlets are corresponded in the fire row fuel gas conduit is equipped with gas nozzle；It is described
Fire row unit is concavely provided with the cross groove for the air cavity to be separated into the first air cavity and the second air cavity.
5. combustion and steam occurrence of equipment according to claim 4, which is characterized in that it further include water-cooling system, the water cooling
System includes multiple thermally conductive sheet groups being set side by side and the cooling water pipe for sequentially passing through the multiple thermally conductive sheet group, the thermally conductive sheet
Group is formed by setting up the first thermally conductive sheet on the outside of first air cavity and the second air cavity and the second thermally conductive sheet separately.
6. combustion and steam occurrence of equipment according to claim 5, which is characterized in that be additionally provided with combustion in the fire row fuel gas conduit
Gas import, gas inlet pipe is connected at the fuel gas inlet, and the pipeline of the gas inlet pipe is equipped with gas ratio valve.
7. combustion and steam occurrence of equipment according to claim 1, which is characterized in that be connected at the cooling water inlet into water
The pipeline of pipe, the water inlet pipe is equipped with water pump, check valve, solenoid valve and water-flow signal sensor；The steam outlet connects
It is connected to steam output pipe, the pipeline of the steam output pipe is equipped with steam pressure sensor and temperature sensor.
8. the combustion and steam occurrence of equipment according to any one of claim 5-7, which is characterized in that the top of the combustion chamber
Portion is equipped with suction opening, is equipped with exhaust fan at the suction opening；It is additionally provided between the lower end and finned heat exchanger of the exhaust fan
Deflector.
9. combustion and steam occurrence of equipment according to claim 1, which is characterized in that the steam generation mould group is arranged above and below
Setting or left-right situs are arranged in rack.
10. combustion and steam occurrence of equipment according to claim 1, which is characterized in that correspond to each steaming in the rack
The control circuit board that mould group is equipped with independent control occurs for vapour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910048469.5A CN109654467A (en) | 2019-01-18 | 2019-01-18 | A kind of combustion and steam occurrence of equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910048469.5A CN109654467A (en) | 2019-01-18 | 2019-01-18 | A kind of combustion and steam occurrence of equipment |
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| CN109654467A true CN109654467A (en) | 2019-04-19 |
Family
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| CN201910048469.5A Pending CN109654467A (en) | 2019-01-18 | 2019-01-18 | A kind of combustion and steam occurrence of equipment |
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| CN (1) | CN109654467A (en) |
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| CN110537731A (en) * | 2019-08-06 | 2019-12-06 | 广东大源小能节能科技有限公司 | Humidity control system for redrying tobacco leaves |
| CN111911910A (en) * | 2020-09-09 | 2020-11-10 | 金国达科技（湖南）有限公司 | Combined saturated steam generator |
| CN111911898A (en) * | 2020-09-09 | 2020-11-10 | 金国达科技（湖南）有限公司 | Steam generator |
| CN112762426A (en) * | 2021-04-10 | 2021-05-07 | 广东大源小能节能科技有限公司 | Gas steam generating equipment |
| CN113432121A (en) * | 2021-06-09 | 2021-09-24 | 西安交通大学 | Reducing ring rib water-cooling type surface combustion gas device |
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