CN106765008A - A kind of method of regenerative combustion type gas heating pipe steam generator and its fume afterheat synthetical recovery - Google Patents
A kind of method of regenerative combustion type gas heating pipe steam generator and its fume afterheat synthetical recovery Download PDFInfo
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- CN106765008A CN106765008A CN201710007451.1A CN201710007451A CN106765008A CN 106765008 A CN106765008 A CN 106765008A CN 201710007451 A CN201710007451 A CN 201710007451A CN 106765008 A CN106765008 A CN 106765008A
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- heat
- steam generator
- pipe
- regenerator
- gas
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C7/00—Combustion apparatus characterised by arrangements for air supply
- F23C7/02—Disposition of air supply not passing through burner
- F23C7/06—Disposition of air supply not passing through burner for heating the incoming air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/08—Arrangements of devices for treating smoke or fumes of heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
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- 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
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Air Supply (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a kind of regenerative combustion type gas heating pipe steam generator, including steam generator and the heater for being arranged at steam generator bottom, heater includes air duct, gas pipeline, four-way valve, first regenerator, second regenerator and burner, first regenerator and the second regenerator are respectively arranged at the surrounding of steam generator bottom, first regenerator ecto-entad is disposed with the first heat-insulation layer and the first recuperation layer, second regenerator ecto-entad is disposed with the second heat-insulation layer and the second recuperation layer, burner includes the first combustion chamber being connected with the first regenerator and the second combustion chamber being connected with the second regenerator, heat pipe heat exchanging area is provided between first combustion chamber and the second combustion chamber, smoke deflector and the heat pipe a small bundle of straw, etc. for silkworms to spin cocoons on being made up of some heat pipes are provided with heat pipe heat exchanging area.Steam generator long-term safety proposed by the present invention reliably produces steam, and heat to flue gas is fully recycled, and reduces heat loss, improves the thermal efficiency.
Description
Technical field
The present invention relates to steam generator technical field, particularly a kind of regenerative combustion type gas heating pipe steam generator and
The method of its fume afterheat synthetical recovery.
Background technology
Industrial circle is very big to the demand of vapor, and on the current technology, steam is mainly produced by steam boiler, is passed
System steam boiler rely primarily on fuel burn in burner hearth produce heat drum is directly heated to produce steam, although the method energy
Steam is produced, but flue gas takes away amount of heat, exhaust gas temperature You Ji Baidu, even more high, thus the thermal efficiency is relatively low, even if using
Heat exchanger carries out waste heat recovery to flue gas, and final exhaust gas temperature still has major part heat not reclaim also at 150 DEG C or so
Utilize, and heat exchanger is perishable, bulky, complex structure, the shortcomings of service life is short.Haze situation it is serious many
Place proposes to forbid the coal-burning boiler of less than 10 tons of operation to come heating or production steam, so, has substantial amounts of gas fired-boiler and fills out
Mend this market.Current gas-steam boiler efficiency most not higher than 90%, high fume temperature, more more than 150 DEG C, waste heat
It is not fully utilized.
The content of the invention
The purpose of the present invention is to overcome above-mentioned the deficiencies in the prior art, there is provided a kind of regenerative combustion type gas heating pipe steam hair
The method of raw device and its fume afterheat synthetical recovery, the waste heat of flue gas is initially used for heating combustion air, then to fume afterheat
Further reclaim for heating feedwater, can accomplish that the limit of fume afterheat is reclaimed.Steam generator of the invention can pacify for a long time
Complete reliable generation steam, and the heat of flue gas can fully be recycled, exhaust gas temperature is reduced, heat loss is reduced, improve heat
Efficiency.
The present invention is achieved through the following technical solutions：
It is an object of the present invention to provide a kind of regenerative combustion type gas heating pipe steam generator, including steam generator
With the heater for being arranged at the steam generator bottom, the heater include air duct, gas pipeline, four-way
Valve, the first regenerator, the second regenerator and burner, first regenerator and the second regenerator are respectively arranged at the steaming
The surrounding of vapour generator bottom, the first regenerator ecto-entad is disposed with the first heat-insulation layer and the first recuperation layer, institute
State the second regenerator ecto-entad and be disposed with the second heat-insulation layer and the second recuperation layer, the burner includes and described the
First combustion chamber of one regenerator connection and the second combustion chamber being connected with second regenerator, first combustion chamber and institute
State the second combustion chamber to be connected by heat pipe heat exchanging area, smoke deflector is provided with the heat pipe heat exchanging area and by some heat pipes
Heat pipe a small bundle of straw, etc. for silkworms to spin cocoons on of composition；Combustion air passes sequentially through air duct and four-way valve, through the first regenerator, by the first heated storage
Enter the first combustion chamber after thermosphere heating, while combustion gas is blended in the first combustion by gas pipeline into the first combustion chamber and air
Burning in room is burnt, the flue gas after burning is flowed by smoke deflector between heat pipe, and the flue gas after burning is after the second recuperation layer
By four-way valve, discharged through smoke discharging pipe, smoke discharging pipe is that hot water pipeline and flue are socketed, and flue is arranged at hot water
The inside of pipeline.
In a combustion period, in upper half period, combustion air passes sequentially through air duct and four-way valve, through first
Recuperation layer, into combustion chamber after being heated by former heated heat-storing material, about 300 DEG C or so of the heated temperature of air,
Combustion gas is mixed into combustion chamber by gas pipeline with air burns in a combustion chamber, below 1000 DEG C of heat smoke after burning,
Flowed between heat pipe by the smoke deflector in burner.By the baffling of smoke deflector, flue gas can be extended with heat
The time of contact of pipe, fin is provided with outside this part heat pipe, heat exchange area can be expanded, compared with the light pipe of conventional boiler,
Heat exchange area can increase by 8~10 times, therefore, it is tighter that the equipment steam generator proposed by the present invention of equal-wattage can do
Gather, reduce equipment volume, reduce floor space.After being exchanged heat through superheater tube area, flue-gas temperature drops to 350 DEG C or so, then through the
Heat-storing material inside the heating of two regenerator, by four-way valve, draws through smoke exhaust fan, and smoke discharging pipe is hot water pipeline and flue gas
Pipeline is socketed, and flue is arranged at the inside of hot water pipeline, and by the further Mist heat recovering of boiler feedwater, flue-gas temperature can
It is reduced to 50 DEG C or so；Heat pipe a small bundle of straw, etc. for silkworms to spin cocoons on is provided with combustion chamber, heat pipe a small bundle of straw, etc. for silkworms to spin cocoons on is made up of several heat pipes, the top of heat pipe is arranged at steaming
Inside vapour generator, bottom is arranged inside heat pipe heat exchanging area.
The outstanding feature of regenerative combustion type gas heating pipe steam generator proposed by the present invention is：(1) exhaust gas temperature is low, can
With abundant Mist heat recovering, including in flue gas steam the latent heat of vaporization, such that it is able to improve the thermal efficiency to more than 95%；(2)
Heat pipe flue gas side increases fin, can increase by 8~10 times of heat exchange area, can reduce equipment volume；(3) heat exchange of heat pipe
The damage of single heat pipe does not result in the stopping of whole system in efficiency high, and system, and service life of equipment is long；(4) flame temperature
At 1000 DEG C or so, the generation of thermal NO X is suppressed for degree control.
The setting of four-way valve makes high-temperature flue gas and combustion air that free switching is carried out in air duct and smoke discharging pipe.Water
There is heat exchange in sleeve pipe with flue gas, flue-gas temperature is further reduced, water absorbs heat and enters in steam generator.
Steam generator energy long-term safety proposed by the present invention reliably produces steam, and the heat of flue gas fully can be returned
Receive and utilize, reduce exhaust gas temperature, reduce heat loss, improve the thermal efficiency.
Preferably, the thickness of the first described heat-insulation layer and the second described heat-insulation layer is respectively 150~200mm, described
The first recuperation layer and the cross-sectional width of the second described recuperation layer be respectively 100~150mm.First recuperation layer and the second accumulation of heat
The heat-storing material total height and structure type of layer are calculated respectively according to the size of plant capacity, the first recuperation layer and the second recuperation layer
Specific surface area in 1000m2/m3Left and right.
Preferably, the heat-storing material of the first described recuperation layer and the second described recuperation layer is selected from ceramic honey comb or metal
One kind in ceramic honey comb.The heat-storing material of the first recuperation layer and the second recuperation layer can be identical heat-storing material or difference
Heat-storing material, as long as it can reach identical accumulation of heat effect.The steady flow in recuperation layer of air and flue gas, realizes storing
Heating of the thermosphere to the heating and flue gas of air to recuperation layer.
Preferably, described smoke deflector is arranged alternately in the heat pipe heat exchanging area, and the movement locus for making flue gas is in S
Type.The design of smoke deflector extends the time of contact of flue gas and heat pipe, heat pipe is absorbed more heats, it is ensured that heat exchange is filled
Point.
Preferably, described heat pipe lower end is provided with the fin of increase endotherm area.If single heat pipe fume side occurs
Problem, does not interfere with the normal operation of whole system.
Preferably, described steam generator top is provided with the jet chimney for discharging steam.Jet chimney is used for will
The steam produced in steam generator is discharged in time.
Preferably, the TEMP for monitoring steam generator internal temperature is provided with outside described steam generator
Device, the pressure sensor for monitoring pressure inside steam generator and the safety valve for ensuring steam generator safety.
Inside heat pipe is different according to heating technique, keeps certain vacuum, and intraductal working medium after treatment, can be effective
The precipitation of the on-condensible gas such as hydrogen under suppression HTHP, and the hydrogen gasification that can be separated out is water, it is ensured that internal vacuum
Degree, such that it is able to extend the service life of heat pipe.Intraductal working medium can be selected regarding actual conditions, as long as the effect of needs can be reached
.
It is a further object to provide a kind of regenerative combustion type gas heating pipe steam generator fume afterheat synthesis
The method of recovery, it is characterised in that comprise the following steps：
(1) air is sent into four-way valve by air blower, reaches the first burner through the first pipeline and the first recuperation layer successively
Into the first combustion chamber, in the process, air by the first recuperation layer by ambient temperature to 250 DEG C~350 DEG C, meanwhile,
Combustion gas reaches the first burner and is blended in the first burning Indoor Combustion into the first combustion chamber and air by gas pipeline；Burning is produced
Raw flue gas flows along baffling passage under the guide effect of smoke deflector in heat pipe heat exchanging area, is absorbed by heat pipe and is passed
It is defeated to heat aquatic products steam to steam generator inside, drawn by jet chimney after steam reaches sets requirement；Last flue gas temperature
Degree be reduced to 250 DEG C~350 DEG C recuperation layers of entrance second, herein the temperature of flue gas by 250 DEG C~350 DEG C be reduced to 80 DEG C~
120 DEG C, flue gas enters four-way valve through second pipe, and in the process, fume afterheat is stored in the second recuperation layer, by air inducing
Flue gas is sent into smoke discharging pipe by machine, the feedwater in flue gas hot water pipeline in smoke discharging pipe, is fed water through delivery pipeline
Into steam generator, the temperature of flue gas is further decreased to 50 DEG C~60 DEG C, enters in atmospheric environment；
(2) air is sent into four-way valve by air blower, reaches the second burner through second pipe and the second recuperation layer successively
Into the second combustion chamber, in the process, air by the second recuperation layer by ambient temperature to 250 DEG C~350 DEG C, meanwhile,
Combustion gas reaches the second burner and is blended in the second burning Indoor Combustion into the second combustion chamber and air by gas pipeline；Burning is produced
Raw flue gas flows along baffling passage under the guide effect of smoke deflector in heat pipe heat exchanging area, is absorbed by heat pipe and is passed
It is defeated to heat aquatic products steam to steam generator inside, drawn by jet chimney after steam reaches sets requirement；Last flue gas temperature
Degree be reduced to 250 DEG C~350 DEG C recuperation layers of entrance first, herein the temperature of flue gas by 250 DEG C~350 DEG C be reduced to 80 DEG C~
120 DEG C, fume afterheat is stored in the first recuperation layer, and flue gas enters four-way valve through the first pipeline, is sent into by air-introduced machine and discharged fume
Pipeline, the hot water in flue gas hot water pipeline in smoke discharging pipe, hot water enters steam generator, cigarette through delivery pipeline
The temperature of gas is further decreased to 50 DEG C~60 DEG C, enters in atmospheric environment；
(3) above-mentioned steps (1) and step (2) are repeated, circulation is carried out, and realizes fume afterheat synthetical recovery
The beneficial effects of the invention are as follows：
(1) steam generator proposed by the present invention improves the thermal efficiency by the high efficient heat exchanging technology of heat pipe；Heat pipe evaporator section
Increase the heat-storing material of heat exchange area and high-specific surface area using fin, on the premise of heat transfer effect is ensured, reduce equipment body
Product, reduces manufacturing cost；
(2) the heat limit of flue gas is recycled by heat-storing material, reduces exhaust gas temperature, reduce heat loss, thus
The thermal efficiency is very high, and up to more than 95%, exhaust gas temperature is higher than environment temperature to be not more than 30 DEG C to the final thermal efficiency of the system, so as to reach
To the purpose of energy-conservation.
Brief description of the drawings
Fig. 1 is a kind of structural representation of regenerative combustion type gas heating pipe steam generator of the invention；
Fig. 2 is a kind of structural representation of regenerative combustion type gas heating pipe steam generator of the invention；
In figure：1st, air blower；2nd, air duct；3rd, two-position four-way valve；4th, the first pipeline；5th, second pipe；6th, air-introduced machine；
7th, inlet channel；8th, hot water pipeline；9th, smoke discharging pipe；10th, delivery pipeline；11st, the second heat-insulation layer；12nd, the second recuperation layer；
13rd, the second burner；14th, the second valve；15th, gas pipeline；16th, the first valve；17th, smoke deflector；18th, the first burning
Device；19th, the first recuperation layer；20th, temperature sensor；21st, pressure sensor；22nd, safety valve；23rd, pressure vessel；24th, heat pipe；
25th, heat pipe heat exchanging area；26th, jet chimney.
Specific embodiment
Present disclosure is described in further details with reference to the accompanying drawings and detailed description.
A kind of regenerative combustion type gas heating pipe steam generator, including steam generator and it is arranged at the steam generator
The heater of bottom, the heater includes air duct, gas pipeline, four-way valve, the first regenerator, the second regenerator
And burner, first regenerator and the second regenerator are respectively arranged at the surrounding of the steam generator bottom, described
First regenerator ecto-entad is disposed with the first heat-insulation layer and the first recuperation layer, and the second regenerator ecto-entad is successively
The second heat-insulation layer and the second recuperation layer are provided with, the burner includes the first combustion chamber being connected with first regenerator
And the second combustion chamber being connected with second regenerator, first combustion chamber and second combustion chamber pass through heat pipe heat exchanging
Area is connected, and smoke deflector and the heat pipe a small bundle of straw, etc. for silkworms to spin cocoons on being made up of some heat pipes are provided with the heat pipe heat exchanging area；Combustion air according to
It is secondary by air duct and four-way valve, through the first regenerator, entered the first burning after heated the first recuperation layer heating
Room, while combustion gas is burnt in being blended in the first combustion chamber into the first combustion chamber and air by gas pipeline, the cigarette after burning
Gas is flowed by smoke deflector between heat pipe, and the flue gas after burning passes through four-way valve after the second recuperation layer, through smoke discharging pipe
Discharge, smoke discharging pipe is that hot water pipeline and flue are socketed, and flue is arranged at the inside of hot water pipeline.
Embodiment
Refering to Fig. 1~2, Fig. 1 and Fig. 2 is the structural representation of regenerative combustion type gas heating pipe steam generator.
Regenerative combustion type gas heating pipe steam generator proposed by the invention, including steam generator and it is arranged at steam
The heater of generator bottom, heater includes air duct, gas pipeline, four-way valve, the first regenerator, the second accumulation of heat
Room and burner, the first regenerator and the second regenerator are respectively arranged at the surrounding of steam generator bottom, the first regenerator
Ecto-entad is disposed with the first heat-insulation layer and the first recuperation layer 19, and the second regenerator ecto-entad is disposed with the second guarantor
The recuperation layer 12 of warm layer 11 and second, burner includes the first combustion chamber being connected with the first regenerator and connects with the second regenerator
The second combustion chamber for connecing, is provided with the first burner 18 in the first combustion chamber, the second burner 13 is provided with the second combustion chamber,
First combustion chamber is connected with second combustion chamber by heat pipe heat exchanging area 25, and being provided with flue gas in heat pipe heat exchanging area 25 leads
Stream plate 17 and the heat pipe a small bundle of straw, etc. for silkworms to spin cocoons on being made up of some heat pipes 24；Combustion air passes sequentially through air duct 2 and two-position four-way valve 3, warp
First regenerator, enters the first combustion chamber after being heated by the first heated recuperation layer 19, while combustion gas passes through gas pipeline
Burnt in being blended in the first combustion chamber into the first combustion chamber and air, the flue gas after burning is by smoke deflector 17 in heat pipe
Between flow, flue gas after burning, by two-position four-way valve 3, is discharged, smoke discharging pipe 9 after the second recuperation layer 12 through smoke discharging pipe 9
It is that hot water pipeline 8 and flue are socketed, flue is arranged at the inside of hot water pipeline 8.
In a combustion period, in upper half period, combustion air passes sequentially through air duct 2 and two-position four-way valve 3,
Through the first recuperation layer 19, the first combustion chamber, the heated temperature of air are entered after being heated by former heated heat-storing material
About 300 DEG C or so, combustion gas is burnt in being blended in the first combustion chamber into the first combustion chamber and air by gas pipeline 15, burning
Below 1000 DEG C of heat smoke afterwards, flowed between heat pipe 24 by the smoke deflector 17 in heat pipe heat exchanging area 25.By flue gas
The baffling of deflector 17, can extend the time of contact of flue gas and heat pipe, and fin is provided with outside heat pipe, can expand heat-transfer surface
Product, compared with the light pipe of conventional boiler, heat exchange area can increase by 8~10 times, therefore, the equipment present invention of equal-wattage is proposed
Steam generator can do it is more compact, reduce equipment volume, reduce floor space.After heat pipe heat exchanging area exchanges heat, cigarette
Temperature degree drops to 350 DEG C or so, then through the heat-storing material inside the heating of the second regenerator, by two-position four-way valve 3, through air inducing
Machine 6 is discharged by smoke discharging pipe 9, and smoke discharging pipe 9 is that hot water pipeline 8 and flue are socketed, and flue is arranged at hot-water line
The inside in road 8, by the further Mist heat recovering of boiler feedwater, flue-gas temperature can be reduced to 50 DEG C or so.
The outstanding feature of regenerative combustion type gas heating pipe steam generator proposed by the present invention is：(1) exhaust gas temperature is low, can
With abundant Mist heat recovering, including in flue gas steam the latent heat of vaporization, such that it is able to improve the thermal efficiency to more than 95%；(2)
Heat pipe flue gas side increases fin, can increase by 8~10 times of heat exchange area, can reduce equipment volume；(3) heat exchange of heat pipe
The damage of single heat pipe does not result in the stopping of whole system in efficiency high, and system, and service life of equipment is long；(4) flame temperature
At 1000 DEG C or so, the generation of thermal NO X is suppressed for degree control.
The setting of four-way valve makes high-temperature flue gas and combustion air that free switching is carried out in air duct and smoke discharging pipe.Water
There is heat exchange in sleeve pipe with flue gas, flue-gas temperature is further reduced, water absorbs heat and enters in steam generator.
The first burner 18, the second burner 13 are provided with burner and are burnt with the first burner 18 and second
The heat pipe heat exchanging area 25 that device 13 is respectively communicated with, air passes sequentially through air duct 2 and two-position four-way valve 3, through the first recuperation layer 19
By the first burner 18 after heating, combustion gas by gas pipeline 15 mix with air and existed by the first burner 18
Burnt in first combustion chamber, high-temperature flue gas enter heat pipe heat exchanging area 25, work of the flue gas after burning in smoke deflector 17
Flowed in heat pipe heat exchanging area 25 under, heat release.When temperature reaches 350 DEG C or so, second in the second combustion chamber is sequentially passed through
Burner 13, by two-position four-way valve 3 after the second recuperation layer 12, is discharged through air-introduced machine 6 by smoke discharging pipe 9, and air-introduced machine passes through
Frequency Converter Control, can effectively control pressure in heat pipe heat exchanging area, effectively the flow field of tissue flue gas.Smoke discharging pipe 9 is hot-water line
Road 8 and flue are socketed, and flue is arranged at the inside of hot water pipeline 8；According to technological requirement in heat pipe heat exchanging area 25
Thermic load, is provided with several heat pipes 24, and the top of heat pipe 24 is arranged inside steam generator, and bottom is arranged at heat pipe heat exchanging
Inside area 25, the bottom of heat pipe 24 is provided with the fin of increase endotherm area.Four-way valve can be two-position four-way valve or 3-position 4-way
Valve, it can meet flue gas and air carries out free switching in the first pipeline 4 and second pipe 5, in the present embodiment
Selection four-way valve is two-position four-way valve 3.
Heat pipe 24 is uniformly vertically arranged in heat pipe heat exchanging area 25 in the present embodiment, and flue gas is extended by smoke deflector
With the time of contact of heat pipe.Heat pipe evaporation side completes heat by exothermic condensation section in smoke absorption heat in drum heat release
Transmission.
Steam generator can be pressure vessel, boiler or it is any it may occur to persons skilled in the art that storage steam
Container can, in the present embodiment steam generator be pressure vessel 23.It is provided with for monitoring outside pressure vessel 23
The temperature sensor 20 of pressure vessel internal temperature, the pressure sensor 21 for monitoring pressure container internal pressure and for true
The safety valve 22 of packing pressure vessel safety.
The setting of four-way valve 3 makes flue gas and air carry out free switching in air duct 2 and smoke discharging pipe 9.Hot-water line
Road 8 and flue are socketed, and water and flue gas occur heat exchange in sleeve pipe, and flue-gas temperature is further reduced, and water absorbs heat and enters
In entering steam generator.
The heat-storing material of the first recuperation layer 19 and the second recuperation layer 12 is selected from ceramic honey comb or metal beehive ceramics
Kind.The heat-storing material of the first recuperation layer 19 and the second recuperation layer 12 can be identical heat-storing material or different accumulation of heat materials
Material, it can be played expects identical effect.In the present apparatus, recuperation layer and its heat-insulation layer together as furnace wall, due to accumulation of heat
Layer in heat-storing material there is larger heat exchange area, specific surface area up to 1000 cubes every square, therefore, ensure heat exchange effect
On the premise of fruit, equipment volume can be effectively reduced.Compared with traditional boiler, finned tube instead of light pipe, and heat exchange area is carried
It is high 8 to 10 times, while heat transfer effect is ensured, can further reduce the device space.Air and flue gas are in recuperation layer
Steady flow, realizes heating of the recuperation layer to the heating and flue gas of air to accumulation of heat row.First heat-insulation layer and the second heat-insulation layer
The thickness for being ceramic fiber blanket is respectively the cross-sectional width point of 150~200mm, the first heat-storing material and the second heat-storing material
Wei not 100~150mm.The heat-storing material total height and structure type of the first recuperation layer and the second recuperation layer are according to plant capacity
Size is calculated respectively, and the specific surface area of the first recuperation layer and the second recuperation layer is in 1000m2/m3Left and right.First heat-insulation layer makes first
The heat of accumulation of heat mechanism storage is not easy to distribute, and the second heat-insulation layer makes the heat that the second accumulation of heat mechanism stores be not easy to distribute
Go out.
Steam generator top is provided with the jet chimney 26 for discharging steam.Jet chimney 26 is used for steam generator
The steam of middle generation is discharged in time.
Several smoke deflectors 17 are provided with heat pipe heat exchanging area 25, smoke deflector 17 is handed in heat pipe heat exchanging area 25
For setting, the movement locus for making flue gas is in " S " type.The design of smoke deflector 17 its when extending contact of the flue gas with heat pipe
Between, heat pipe is absorbed more heats.The quantity of smoke deflector 17 can be set according to actual needs, and flue gas is led in the present embodiment
The quantity for flowing plate is 3, its effect that can just reach off-gas recovery.
The operation principle of regenerative combustion type gas heating pipe steam generator of the invention is：
(1) by air, by air blower 1, by air duct 2, through two-position four-way valve 3, (now two-position four-way valve 3 and first is managed
Road 4 is connected), high-temperature flue gas after the first burner 18 burns are reached through the first pipeline 4 and the first recuperation layer 19 successively and enters heat pipe
Heat transfer zone 25, in the process, air by the first recuperation layer 19 by ambient temperature to 250 DEG C~350 DEG C, meanwhile, combustion gas
By gas pipeline 15 through the first valve 16 (now the second valve 14 is closed), reach the first burner 18 and mix with air and fired
Burn, high-temperature flue gas enter in heat pipe heat exchanging area 25, flue gas is absorbed by heat pipe 24 and is transferred to steam generator inside heating aquatic products
Steam, is drawn after steam reaches sets requirement by jet chimney 26；Meanwhile, flue gas is moved under the guiding of smoke deflector 17
Enter the concurrent heat of the second recuperation layer 12 to the second burner 13 to exchange, the temperature of flue gas is reduced to 100 DEG C or so by 350 DEG C,
Flue gas enters two-position four-way valve 3 through second pipe 5, and in the process, fume afterheat is stored in the second recuperation layer 12, by drawing
Flue gas is sent into smoke discharging pipe 9 by blower fan 6, and the flue gas in smoke discharging pipe are by inlet channel 7 into giving in hot water pipeline 8
Water, feedwater enters steam generator through delivery pipeline 10, and the temperature of flue gas is further decreased to 50 DEG C~60 DEG C, enters big
In compression ring border；
(2) by air, by air blower 1, through two-position four-way valve 3, (now two-position four-way valve 3 has commutated and has connected with second pipe 5
It is logical), reach the second burner 13 through 5 and second recuperation layer of second pipe 12 successively and burnt, high-temperature flue gas are changed into heat pipe
Hot-zone 25, in the process, air by the second recuperation layer 12 by ambient temperature to 250 DEG C~350 DEG C, meanwhile, combustion gas by
Gas pipeline 15 reaches the second burner 13 and mixes with air and fired through the second valve 14 (now the first valve 16 is closed)
Burn, high-temperature flue gas are absorbed by heat pipe 24 into the flue gas of heat pipe heat exchanging area 25 and are transferred to steam generator inside heating aquatic products and steamed
Vapour, is drawn after steam reaches sets requirement by jet chimney；Meanwhile, flue gas moves under the guiding of smoke deflector 17
One burner 18 enters the concurrent heat of the first recuperation layer 19 and exchanges, and in the first regenerator, the temperature of flue gas is reduced to by 320 DEG C
100 DEG C or so, fume afterheat is stored in the first recuperation layer 19, and flue gas enters two-position four-way valve 3 through the first pipeline 4, by drawing
Blower fan 6 sends into smoke discharging pipe 9, and the feedwater in flue gas hot water pipeline 8 in smoke discharging pipe 9 is fed water through delivery pipeline
10 enter steam generator, and the temperature of flue gas is further decreased to 50 DEG C~60 DEG C, enters in atmospheric environment；
(2) two processes of above step (1) and step form a cycle and then circulate and carry out, and the heat of flue gas is able to pole
Limit is recycled, thus the thermal efficiency is very high, and the heat recovery rate of flue gas can reach more than 98%.
The waste heat of its flue gas of steam generator proposed by the present invention is initially used for heating combustion air, then to fume afterheat
Further reclaim for heating feedwater, can accomplish that the limit of fume afterheat is reclaimed；It can fully reclaim profit to the heat of flue gas
With, exhaust gas temperature is reduced, heat loss is reduced, the thermal efficiency is improved, meanwhile, reduce manufacturing cost, it is ensured that the reliability service of equipment.
Above-listed detailed description is directed to illustrating for possible embodiments of the present invention, and the embodiment simultaneously is not used to limit this hair
Bright the scope of the claims, all equivalence enforcements or change without departing from carried out by the present invention are intended to be limited solely by the scope of the claims of this case.
Claims (8)
1. a kind of regenerative combustion type gas heating pipe steam generator, it is characterised in that：Including steam generator and it is arranged at described
The heater of steam generator bottom, the heater include air duct, gas pipeline, four-way valve, the first regenerator,
Second regenerator and burner, first regenerator and the second regenerator are respectively arranged at the steam generator bottom
Surrounding, the first regenerator ecto-entad is disposed with the first heat-insulation layer and the first recuperation layer, second regenerator by
The second heat-insulation layer and the second recuperation layer are disposed with outside to inside, and the burner includes what is be connected with first regenerator
First combustion chamber and the second combustion chamber being connected with second regenerator, first combustion chamber and second combustion chamber lead to
Superheater tube heat transfer zone is connected, and smoke deflector and the heat pipe a small bundle of straw, etc. for silkworms to spin cocoons on being made up of some heat pipes are provided with the heat pipe heat exchanging area；
Combustion air passes sequentially through air duct and four-way valve, laggard by heated the first recuperation layer heating through the first regenerator
Enter the first combustion chamber, while combustion gas is burnt in being blended in the first combustion chamber into the first combustion chamber and air by gas pipeline,
Flue gas after burning is flowed by smoke deflector between heat pipe, and the flue gas after burning passes through four-way valve after the second recuperation layer,
Discharged through smoke discharging pipe, smoke discharging pipe is that hot water pipeline and flue are socketed, and flue is arranged at the inside of hot water pipeline.
2. regenerative combustion type gas heating pipe steam generator according to claim 1, it is characterised in that：The first described guarantor
The thickness of warm layer and the second described heat-insulation layer is respectively 150~200mm, the first described recuperation layer and the second described accumulation of heat
The cross-sectional width of layer is respectively 100~150mm.
3. regenerative combustion type gas heating pipe steam generator according to claim 1 and 2, it is characterised in that：Described
The heat-storing material of one recuperation layer and the second described recuperation layer is selected from the one kind in ceramic honey comb or metal beehive ceramics.
4. regenerative combustion type gas heating pipe steam generator according to claim 1 and 2, it is characterised in that：Described cigarette
Gas deflector is arranged alternately in the heat pipe heat exchanging area, makes the movement locus of flue gas S-type.
5. regenerative combustion type gas heating pipe steam generator according to claim 1 and 2, it is characterised in that：Described heat
Pipe lower end is provided with the fin of increase endotherm area.
6. regenerative combustion type gas heating pipe steam generator according to claim 1 and 2, it is characterised in that：Described steaming
Vapour generator top is provided with the jet chimney for discharging steam.
7. regenerative combustion type gas heating pipe steam generator according to claim 1 and 2, it is characterised in that：Described steaming
Be provided with outside vapour generator for monitor steam generator internal temperature temperature sensor, for monitoring in steam generator
The pressure sensor of portion's pressure and the safety valve for ensuring steam generator safety.
8. the method for regenerative combustion type gas heating pipe steam generator fume afterheat synthetical recovery described in a kind of claim 1, its
It is characterised by, comprises the following steps：
(1) air is sent into four-way valve by air blower, reaching the first burner through the first pipeline and the first recuperation layer successively enters
First combustion chamber, in the process, air by the first recuperation layer by ambient temperature to 250 DEG C~350 DEG C, meanwhile, combustion gas
First burner is reached by gas pipeline and is blended in the first burning Indoor Combustion into the first combustion chamber and air；What burning was produced
Flue gas flows along baffling passage under the guide effect of smoke deflector in heat pipe heat exchanging area, is absorbed by heat pipe and is transferred to
Steam generator inside heating aquatic products steam, is drawn after steam reaches sets requirement by jet chimney；Last flue-gas temperature drop
Low to 250 DEG C~350 DEG C recuperation layers of entrance second, herein, the temperature of flue gas is reduced to 80 DEG C~120 by 250 DEG C~350 DEG C
DEG C, flue gas enters four-way valve through second pipe, and in the process, fume afterheat is stored in the second recuperation layer, by air-introduced machine
Flue gas is sent into smoke discharging pipe, the feedwater in flue gas hot water pipeline in smoke discharging pipe, feedwater is entered through delivery pipeline
Enter steam generator, the temperature of flue gas is further decreased to 50 DEG C~60 DEG C, enters in atmospheric environment；
(2) air is sent into four-way valve by air blower, reaching the second burner through second pipe and the second recuperation layer successively enters
Second combustion chamber, in the process, air by the second recuperation layer by ambient temperature to 250 DEG C~350 DEG C, meanwhile, combustion gas
Second burner is reached by gas pipeline and is blended in the second burning Indoor Combustion into the second combustion chamber and air；What burning was produced
Flue gas flows along baffling passage under the guide effect of smoke deflector in heat pipe heat exchanging area, is absorbed by heat pipe and is transferred to
Steam generator inside heating aquatic products steam, is drawn after steam reaches sets requirement by jet chimney；Last flue-gas temperature drop
Low to 250 DEG C~350 DEG C recuperation layers of entrance first, herein, the temperature of flue gas is reduced to 80 DEG C~120 by 250 DEG C~350 DEG C
DEG C, fume afterheat is stored in the first recuperation layer, and flue gas enters four-way valve through the first pipeline, and smoke exhaust pipe is sent into by air-introduced machine
Road, the hot water in flue gas hot water pipeline in smoke discharging pipe, hot water enters steam generator, flue gas through delivery pipeline
Temperature be further decreased to 50 DEG C~60 DEG C, enter in atmospheric environment；
(3) above-mentioned steps (1) and step (2) are repeated, circulation is carried out, and realizes fume afterheat synthetical recovery.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112393632A (en) * | 2019-08-12 | 2021-02-23 | 青岛佰腾科技有限公司 | Intermittent alternate heat exchange method for loop heat pipe system |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1264012A (en) * | 1999-02-05 | 2000-08-23 | 谢西平 | Sealed efficient heat exchanger |
| JP2002061833A (en) * | 2000-08-15 | 2002-02-28 | Nkk Corp | Regenerative combustion device and combustion method |
| CN101319788A (en) * | 2007-06-08 | 2008-12-10 | 北京神雾热能技术有限公司 | High performance fuel heat accumulation type condensation energy-saving boiler |
| CN102322758A (en) * | 2011-07-29 | 2012-01-18 | 林世鸿 | Heat-pipe type boiler/furnace/kiln flue-gas waste-heat recovery device |
| CN202465781U (en) * | 2012-02-09 | 2012-10-03 | 天津研展技术开发有限公司 | Efficient continuous muffle tube annealing furnace for hot-dip galvanizing production line |
| CN104132325A (en) * | 2014-01-06 | 2014-11-05 | 衡水超越节能工程有限公司 | Low temperature economizer having glass-lined heat tubes and applicable to deep recovery of waste heat in station boiler exhaust |
| CN204756953U (en) * | 2015-06-08 | 2015-11-11 | 杭州兴源节能环保科技有限公司 | Take exhaust -heat boiler's heat accumulation formula waste gas incinerator |
| CN105444570A (en) * | 2014-09-11 | 2016-03-30 | 徐州如轩炉窑有限公司 | Heat accumulating type gas heating furnace |
| CN105605561A (en) * | 2016-01-12 | 2016-05-25 | 天津市洪瑞昌泰节能科技有限公司 | Multifunctional regenerative combustion system |
| CN205655478U (en) * | 2016-05-12 | 2016-10-19 | 李凤来 | Cleaning type coal superconducting heat pipe large -sized boiler |
-
2017
- 2017-01-05 CN CN201710007451.1A patent/CN106765008B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1264012A (en) * | 1999-02-05 | 2000-08-23 | 谢西平 | Sealed efficient heat exchanger |
| JP2002061833A (en) * | 2000-08-15 | 2002-02-28 | Nkk Corp | Regenerative combustion device and combustion method |
| CN101319788A (en) * | 2007-06-08 | 2008-12-10 | 北京神雾热能技术有限公司 | High performance fuel heat accumulation type condensation energy-saving boiler |
| CN102322758A (en) * | 2011-07-29 | 2012-01-18 | 林世鸿 | Heat-pipe type boiler/furnace/kiln flue-gas waste-heat recovery device |
| CN202465781U (en) * | 2012-02-09 | 2012-10-03 | 天津研展技术开发有限公司 | Efficient continuous muffle tube annealing furnace for hot-dip galvanizing production line |
| CN104132325A (en) * | 2014-01-06 | 2014-11-05 | 衡水超越节能工程有限公司 | Low temperature economizer having glass-lined heat tubes and applicable to deep recovery of waste heat in station boiler exhaust |
| CN105444570A (en) * | 2014-09-11 | 2016-03-30 | 徐州如轩炉窑有限公司 | Heat accumulating type gas heating furnace |
| CN204756953U (en) * | 2015-06-08 | 2015-11-11 | 杭州兴源节能环保科技有限公司 | Take exhaust -heat boiler's heat accumulation formula waste gas incinerator |
| CN105605561A (en) * | 2016-01-12 | 2016-05-25 | 天津市洪瑞昌泰节能科技有限公司 | Multifunctional regenerative combustion system |
| CN205655478U (en) * | 2016-05-12 | 2016-10-19 | 李凤来 | Cleaning type coal superconducting heat pipe large -sized boiler |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112393632A (en) * | 2019-08-12 | 2021-02-23 | 青岛佰腾科技有限公司 | Intermittent alternate heat exchange method for loop heat pipe system |
| CN112393632B (en) * | 2019-08-12 | 2022-01-28 | 中北大学 | Intermittent alternate heat exchange method for loop heat pipe system |
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| CN106765008B (en) | 2023-04-28 |
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