CN110108033A - It is a kind of for heating medium-sized gas fired-boiler flue gas waste heat recovery apparatus - Google Patents
It is a kind of for heating medium-sized gas fired-boiler flue gas waste heat recovery apparatus Download PDFInfo
- Publication number
- CN110108033A CN110108033A CN201910184904.7A CN201910184904A CN110108033A CN 110108033 A CN110108033 A CN 110108033A CN 201910184904 A CN201910184904 A CN 201910184904A CN 110108033 A CN110108033 A CN 110108033A
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- China
- Prior art keywords
- flue gas
- waste heat
- heat recovery
- communicated
- flue
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/46—Recuperation of heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
- F24H4/04—Storage heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H8/00—Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Abstract
The invention discloses a kind of for heating medium-sized gas fired-boiler flue gas waste heat recovery apparatus, including boiler body and compressor, the first flue is communicated on the left of the boiler body, the left end of first flue is communicated with burner, the second flue is communicated on the right side of the boiler body, the right end of second flue is communicated with energy-saving appliance, and the right end of the energy-saving appliance is communicated with third flue, and the present invention relates to heating equipment technical fields.This is used for heating medium-sized gas fired-boiler flue gas waste heat recovery apparatus, pass through the cooperation of above structure, compressor is driven to move using engine driving, make the heat transfer of the high temperature freon in flue gas waste heat recovery water tank to secondary return water, effectively recycles the heat in flue gas, and make evaporator directly and smoke contacts, flue gas recirculation is further cooled down, flue gas with water is reduced, burner service life is extended, occupied area is small, maintenance is simple, reduces Air Pollutant Emission.
Description
Technical field
It is specially a kind of for heating medium-sized gas fired-boiler fume afterheat the present invention relates to heating equipment technical field
Recyclable device.
Background technique
Heating equipment is to set the heat supply that people live or the space that is produced is maintained at suitable Warm status and is arranged
It applies.To the method for certain space heating amount, directly the stove of generation heat can be installed therein；It can also extract out therein
Air is sent back to again after heating；It can also be maintained at the object of higher temperature in wherein device, to the heat release of place space.This temperature
It spends higher object and is known as the radiator that heats.To make to heat, radiator continues heat release, can continuously be existed with the fluid by preheating
It is flowed through in radiator.This fluid is usually steam or hot water, referred to as heat-carrying medium or heating agent.Heating agent is arranged on other than the space
Heat production, thermal-arrest or heat exchange equipment heating after, be assigned to each heating radiator with hot duct.Heating agent is entrained one
After dividing heat to be transmitted to radiator, heat source is flowed back to by reflux line, is reheated.Heating agent circulation circulation, so that it may constantly heat
It is transferred to by warm space.Typical heating equipment is made of heat source, heating agent pipeline and heating radiator.Boiler is a kind of energy
Conversion equipment, the energy inputted to boiler have chemical energy, electric energy in fuel, and boiler output has steam, the height of certain thermal energy
Warm water or organic heat carrier.The original meaning of pot refers to that the water container heated on fire, furnace refer to the place of burning fuel, and boiler includes pot
With furnace two large divisions.The hot water or steam generated in boiler directly can provide required thermal energy for industrial production and people's lives,
Mechanical energy can be converted to by Steam Power Equipment, or electric energy is converted mechanical energy by generator again.The pot of hot water is provided
Furnace is known as hot-water boiler, is mainly used for living, and also has a small amount of application in industrial production.
Boiler exhaust heat loss is the first big heat loss, and the height of exhaust gas temperature directly affects the height of boiler efficiency, existing
Some is used for heating boiler smoke-gas residual-heat recovering device, is mostly to realize waste heat recycling using direct-fired machine driving lithium bromide,
But since direct-fired machine is bulky, installation is inconvenient, and structure is complicated, maintenance cost is higher for direct-fired machine.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, it is returned the present invention provides a kind of for heating medium-sized gas fired-boiler fume afterheat
Receiving apparatus, solves existing for heating boiler smoke-gas residual-heat recovering device, is mostly to drive bromination using direct-fired machine
Lithium realizes waste heat recycling, and bulky, installation is inconvenient, and structure is complicated, the higher problem of maintenance cost for direct-fired machine.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs: a kind of for heating medium-sized combustion
Gas boiler flue gas waste heat recovery apparatus, including boiler body and compressor are communicated with the first flue on the left of the boiler body,
The left end of first flue is communicated with burner, and the second flue, second flue are communicated on the right side of the boiler body
Right end be communicated with energy-saving appliance, the right end of the energy-saving appliance is communicated with third flue, and the right end of the third flue is communicated with cigarette
Gas afterheat recycling water tank, the inside of the flue gas waste heat recovery water tank are fixedly connected with fan coiled heat-exchanger, more than the flue gas
Smoke exhaust pipe is communicated on the right side of recuperation of heat water tank, the bottom of the smoke evacuation tube outer surface is communicated with flue gas recirculation pipe, the cigarette
The top of gas recirculation pipe runs through smoke exhaust pipe and extends to the inside of smoke exhaust pipe, the left side at the top of the flue gas recirculation tube outer surface
Side is communicated with smoke-intake pipe, and the top of the smoke-intake pipe runs through burner and extends to the inside of burner, the flue gas recirculation
Left side inside pipe is fixedly connected with evaporator, and engine is electrically connected on the left of the compressor, and the fume afterheat returns
It receives and is communicated with secondary outlet pipe on the left of water tank bottom, one end of the secondary outlet pipe passes through compressor and extends to compressor
Outside, be communicated with secondary return pipe, and one end of secondary return pipe and two on the right side of the flue gas waste heat recovery water tank bottom
One end of secondary outlet pipe is connected to.
Preferably, the inside of the flue gas waste heat recovery water tank is using freon as waste heat recovering medium.
Preferably, the compressor uses helical-lobe compressor.
Preferably, the energy-saving appliance can reduce the temperature of boiler smoke, to have the function that energy saving.
Preferably, cooling water inlet pipe, the left side setting of the engine bottom are provided on the right side of the engine bottom
There is cooling water outlet pipe.
Preferably, the top on the right side of the evaporator is provided with circulation water inlet pipe, and the right end and flue gas of circulation water inlet pipe
The left side of afterheat recycling water tank is connected to, and the surface of the circulation water inlet pipe is fixedly connected with the first control valve.
Preferably, the right side of the evaporator and it is located at immediately below circulation water inlet pipe and is provided with recycling outlet, and follows
The right end of ring outlet pipe is connected to the left side of flue gas waste heat recovery water tank.
Preferably, flue gas connecting tube, the top of the flue gas connecting tube are communicated on the right side of the flue gas waste heat recovery water tank
End runs through smoke exhaust pipe and extends to the inside of smoke exhaust pipe, and the surface of the flue gas connecting tube is fixedly connected with the second control valve.
(3) beneficial effect
The present invention provides a kind of for heating medium-sized gas fired-boiler flue gas waste heat recovery apparatus.With prior art phase
Than, have it is following the utility model has the advantages that
(1), this is used for heating medium-sized gas fired-boiler flue gas waste heat recovery apparatus, by connecting on the left of boiler body
It is connected with the first flue, the left end of the first flue is communicated with burner, and the second flue, the second flue are communicated on the right side of boiler body
Right end be communicated with energy-saving appliance, the right end of energy-saving appliance is communicated with third flue, and the right end of third flue is communicated with fume afterheat and returns
Water tank is received, the inside of flue gas waste heat recovery water tank is fixedly connected with fan coiled heat-exchanger, the right side of flue gas waste heat recovery water tank
It is communicated with smoke exhaust pipe, the bottom for tube outer surface of discharging fume is communicated with flue gas recirculation pipe, and the top of flue gas recirculation pipe is through smoke evacuation
The inside of smoke exhaust pipe is managed and extends to, the left side at the top of flue gas recirculation tube outer surface is communicated with smoke-intake pipe, the top of smoke-intake pipe
Through burner and the inside of burner is extended to, the left side inside flue gas recirculation pipe is fixedly connected with evaporator, compressor
Left side be electrically connected with engine, secondary outlet pipe, secondary outlet pipe are communicated on the left of flue gas waste heat recovery water tank bottom
One end pass through compressor and extend to the outside of compressor, be communicated with secondary return water on the right side of flue gas waste heat recovery water tank bottom
Pipe, and one end of secondary return pipe is connected to one end of secondary outlet pipe, by the cooperation of above structure, utilizes engine driving
Compressor movement is driven, makes the heat transfer of the high temperature freon in flue gas waste heat recovery water tank to secondary return water, it is effective to return
The heat in flue gas has been received, and has made evaporator directly and smoke contacts, flue gas recirculation has further been cooled down, has reduced flue gas band
Water extends burner service life, and occupied area is small, maintenance is simple, reduces Air Pollutant Emission.
(2), this is used for heating medium-sized gas fired-boiler flue gas waste heat recovery apparatus, by the right side of engine bottom
It is provided with cooling water inlet pipe, cooling water outlet pipe is provided on the left of engine bottom, the top on the right side of evaporator is provided with circulation
Water inlet pipe, and the right end of circulation water inlet pipe is connected to the left side of flue gas waste heat recovery water tank, the surface of circulation water inlet pipe is fixed to be connected
It is connected to the first control valve, the right side of evaporator and is located at immediately below circulation water inlet pipe and is provided with recycling outlet, and recycle
The right end of outlet pipe is connected to the left side of flue gas waste heat recovery water tank, using cooling water inlet pipe and cooling water outlet pipe, can will be sent out
Motivation heat dissipation is recycled together, improves Energy Efficiency Ratio, and circulation water inlet pipe and recycling outlet is arranged, and can effectively be returned fume afterheat
Heat in receipts water tank is supplied to evaporator and absorbs heat.
(3), this is used for heating medium-sized gas fired-boiler flue gas waste heat recovery apparatus, by flue gas waste heat recovery water tank
Right side be communicated with flue gas connecting tube, the top of flue gas connecting tube is through smoke exhaust pipe and extends to the inside of smoke exhaust pipe, and flue gas connects
The surface of adapter tube is fixedly connected with the second control valve, and flue gas connecting tube is arranged, can will be more inside flue gas waste heat recovery water tank
Remaining flue gas discharge, is passed through in smoke exhaust pipe again.
Detailed description of the invention
Fig. 1 is internal structure main view of the invention；
Fig. 2 is the internal structure top view of flue gas waste heat recovery water tank of the present invention.
Description of symbols:
1- boiler body, 2- compressor, the first flue of 3-, 4- burner, the second flue of 5-, 6- energy-saving appliance, 7- third cigarette
Road, 8- flue gas waste heat recovery water tank, 9- smoke exhaust pipe, 10- flue gas recirculation pipe, 11- smoke-intake pipe, 12- evaporator, 13- engine,
Bis- outlet pipes of 14-, bis- return pipes of 15-, 16- cooling water inlet pipe, 17- cooling water outlet pipe, 18- circulation water inlet pipe, 19- first
Control valve, 20- recycling outlet, 21- flue gas connecting tube, the second control valve of 22-, 23- fan coiled heat-exchanger.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the present invention provides a kind of technical solution referring to FIG. 1-2: a kind of for heating medium-sized gas fired-boiler
Flue gas waste heat recovery apparatus, including boiler body 1 and compressor 2, compressor 2 use helical-lobe compressor, the left side of boiler body 1
It is communicated with the first flue 3, the left end of the first flue 3 is communicated with burner 4, and burner 4 is to make fuel and air in a certain way
Spray be mixed and burned device be referred to as, burner divide by type with application field industrial burner, combustor, civilian burner,
Special kind firing device is several, and the effect of burner is to make sample atomization by flame combustion, and the right side of boiler body 1 is communicated with
Two flues 5, the right end of the second flue 5 are communicated with energy-saving appliance 6, and energy-saving appliance 6 can reduce the temperature of boiler smoke, to reach section
The about effect of the energy, the right end of energy-saving appliance 6 are communicated with third flue 7, and the right end of third flue 7 is communicated with flue gas waste heat recovery water
Case 8, the inside of flue gas waste heat recovery water tank 8 are fixedly connected with fan coiled heat-exchanger 23, and fan coiled heat-exchanger 23 is by small
One of air-conditioning system end equipment of the compositions such as type blower, motor and coil pipe, when flowing through chilled water or hot water in coil pipe pipe with
Outer air heat-exchange is managed, keeps air cooled, to adjust indoor air parameter, it is common cooling supply, heat supply for dehumidifying or heating
End equipment, the right side of flue gas waste heat recovery water tank 8 are communicated with flue gas connecting tube 21, and setting flue gas connecting tube 21 can be by flue gas
The extra flue gas discharge in 8 inside of afterheat recycling water tank, is passed through in smoke exhaust pipe 9, the top of flue gas connecting tube 21 is through smoke evacuation again
Pipe 9 and the inside for extending to smoke exhaust pipe 9, the surface of flue gas connecting tube 21 are fixedly connected with the second control valve 22, the second control
Valve 22 and external power supply are electrically connected, and the inside of flue gas waste heat recovery water tank 8 is using freon as waste heat recovering medium, cigarette
The right side of gas afterheat recycling water tank 8 is communicated with smoke exhaust pipe 9, and the bottom of 9 outer surface of smoke exhaust pipe is communicated with flue gas recirculation pipe 10, cigarette
The top of gas recirculation pipe 10 runs through smoke exhaust pipe 9 and extends to the inside of smoke exhaust pipe 9,10 external surface top of flue gas recirculation pipe
Left side is communicated with smoke-intake pipe 11, and the top of smoke-intake pipe 11 runs through burner 4 and extends to the inside of burner 4, flue gas recirculation
Left side inside pipe 10 is fixedly connected with evaporator 12, and evaporator 12 is a component critically important in four big parts of refrigeration, low temperature
Condensed fluid heat exchange is carried out by evaporator 12 and extraneous air, gasification heat absorption achievees the effect that refrigeration, evaporator 12
It is mainly made of heating room and vaporization chamber two parts, heating room is provided to liquid evaporates required heat, promotes liquid boiling
Vaporization；Vaporization chamber is kept completely separate gas-liquid two-phase, the right side of evaporator 12 and be located at circulation water inlet pipe 18 underface be provided with
Circulation water inlet pipe 18 and recycling outlet 20 is arranged in recycling outlet 20, can effectively will be in flue gas waste heat recovery water tank 8
Heat is supplied to evaporator 12 and absorbs heat, and the right end of recycling outlet 20 is connected to the left side of flue gas waste heat recovery water tank 8,
The top on 12 right side of evaporator is provided with circulation water inlet pipe 18, and the right end of circulation water inlet pipe 18 and flue gas waste heat recovery water tank 8
Left side connection, the surface of circulation water inlet pipe 18 is fixedly connected with the first control valve 19, the first control valve 19 and external electrical
Source is electrically connected, and the left side of compressor 2 is electrically connected with engine 13, and engine 13 is gas engine, with external power supply electricity
Property connection, be provided with cooling water inlet pipe 16 on the right side of 13 bottom of engine, engine is provided with cooling water outlet on the left of 13 bottom
Engine 13 can be radiated and be recycled together, improve Energy Efficiency Ratio, cigarette using cooling water inlet pipe 16 and cooling water outlet pipe 17 by pipe 17
Secondary outlet pipe 14 is communicated on the left of 8 bottom of gas afterheat recycling water tank, one end of secondary outlet pipe 14 passes through compressor 2 and prolongs
The outside of compressor 2 is extended to, secondary return pipe 15, and secondary return pipe are communicated on the right side of 8 bottom of flue gas waste heat recovery water tank
15 one end is connected to one end of secondary outlet pipe 14, by the cooperation of above structure, is driven using engine 13 and is driven compression
Machine 2 moves, and makes the heat transfer of the high temperature freon in flue gas waste heat recovery water tank 8 to secondary return water, has effectively recycled cigarette
Heat in gas, and make evaporator 15 directly and smoke contacts, flue gas recirculation is further cooled down, flue gas with water is reduced, prolongs
Long 4 service life of burner, occupied area is small, maintenance is simple, reduces Air Pollutant Emission.
In use, first entering the flue gas in boiler body 1 in energy-saving appliance 6 by the second flue 5, certain temperature is reduced
Entered in flue gas waste heat recovery water tank 8 after degree by third flue 7, most of flue gas passes through in flue gas waste heat recovery water tank 8
Freon is absorbed, and is started engine 13 at the same time, and then compressor 2 is driven to operate, is made in flue gas waste heat recovery water tank 8
Fan coiled heat-exchanger 23 carry out energy storage using fluorine benefit, and then by secondary outlet pipe 14 by the heat transfer of freon to two
Secondary return water is further returned in flue gas waste heat recovery water tank 8 by secondary return pipe 15, and thermal energy is stored, and partial fume passes through cigarette
Gas recirculation pipe 10 is directly contacted with evaporator 12, and flue gas recirculation further cools down, and reduces flue gas with water.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of for heating medium-sized gas fired-boiler flue gas waste heat recovery apparatus, including boiler body (1) and compressor
(2), it is communicated with the first flue (3) on the left of the boiler body (1), the left end of first flue (3) is communicated with burner
(4), it is communicated with the second flue (5) on the right side of the boiler body (1), the right end of second flue (5) is communicated with energy-saving appliance
(6), it is characterised in that: the right end of the energy-saving appliance (6) is communicated with third flue (7), the right end connection of the third flue (7)
Have flue gas waste heat recovery water tank (8), the inside of the flue gas waste heat recovery water tank (8) is fixedly connected with fan coiled heat-exchanger
(23), it is communicated with smoke exhaust pipe (9) on the right side of the flue gas waste heat recovery water tank (8), the bottom of smoke exhaust pipe (9) outer surface connects
It is connected with flue gas recirculation pipe (10), the top of the flue gas recirculation pipe (10) through smoke exhaust pipe (9) and extends to smoke exhaust pipe (9)
Inside, be communicated with smoke-intake pipe (11) on the left of flue gas recirculation pipe (10) external surface top, the smoke-intake pipe (11)
Top runs through burner (4) and extends to the inside of burner (4), and the internal left side of the flue gas recirculation pipe (10) is fixed to be connected
It is connected to evaporator (12), is electrically connected with engine (13) on the left of the compressor (2), the flue gas waste heat recovery water tank
(8) it is communicated on the left of bottom secondary outlet pipe (14), one end of the secondary outlet pipe (14) passes through compressor (2) and extends
To the outside of compressor (2), it is communicated with secondary return pipe (15) on the right side of flue gas waste heat recovery water tank (8) bottom, and two
One end of secondary return pipe (15) is connected to one end of secondary outlet pipe (14).
2. according to claim 1 a kind of for heating medium-sized gas fired-boiler flue gas waste heat recovery apparatus, feature
Be: the inside of the flue gas waste heat recovery water tank (8) is using freon as waste heat recovering medium.
3. according to claim 1 a kind of for heating medium-sized gas fired-boiler flue gas waste heat recovery apparatus, feature
Be: the compressor (2) uses helical-lobe compressor.
4. according to claim 1 a kind of for heating medium-sized gas fired-boiler flue gas waste heat recovery apparatus, feature
Be: the energy-saving appliance (6) can reduce the temperature of boiler smoke, to have the function that energy saving.
5. according to claim 1 a kind of for heating medium-sized gas fired-boiler flue gas waste heat recovery apparatus, feature
It is: is provided with cooling water inlet pipe (16) on the right side of engine (13) bottom, is set on the left of engine (13) bottom
It is equipped with cooling water outlet pipe (17).
6. according to claim 1 a kind of for heating medium-sized gas fired-boiler flue gas waste heat recovery apparatus, feature
Be: the top on the right side of the evaporator (12) is provided with circulation water inlet pipe (18), and the right end and cigarette of circulation water inlet pipe (18)
The left side of gas afterheat recycling water tank (8) is connected to, and the surface of the circulation water inlet pipe (18) is fixedly connected with the first control valve
(19)。
7. according to claim 1 a kind of for heating medium-sized gas fired-boiler flue gas waste heat recovery apparatus, feature
Be: the right side of the evaporator (12) and be located at circulation water inlet pipe (18) immediately below be provided with recycling outlet (20), and
The right end of recycling outlet (20) is connected to the left side of flue gas waste heat recovery water tank (8).
8. according to claim 1 a kind of for heating medium-sized gas fired-boiler flue gas waste heat recovery apparatus, feature
It is: is communicated with flue gas connecting tube (21) on the right side of the flue gas waste heat recovery water tank (8), the top of the flue gas connecting tube (21)
End runs through smoke exhaust pipe (9) and extends to the inside of smoke exhaust pipe (9), and the surface of the flue gas connecting tube (21) is fixedly connected with second
Control valve (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910184904.7A CN110108033A (en) | 2019-03-12 | 2019-03-12 | It is a kind of for heating medium-sized gas fired-boiler flue gas waste heat recovery apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910184904.7A CN110108033A (en) | 2019-03-12 | 2019-03-12 | It is a kind of for heating medium-sized gas fired-boiler flue gas waste heat recovery apparatus |
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| CN110108033A true CN110108033A (en) | 2019-08-09 |
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