CN105783008A - Gas water heater - Google Patents

Gas water heater Download PDF

Info

Publication number
CN105783008A
CN105783008A CN201610278515.7A CN201610278515A CN105783008A CN 105783008 A CN105783008 A CN 105783008A CN 201610278515 A CN201610278515 A CN 201610278515A CN 105783008 A CN105783008 A CN 105783008A
Authority
CN
China
Prior art keywords
exhaustor
cylinder
described cylinder
air
flue
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201610278515.7A
Other languages
Chinese (zh)
Inventor
不公告发明人
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201610278515.7A priority Critical patent/CN105783008A/en
Publication of CN105783008A publication Critical patent/CN105783008A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J11/00—Devices for conducting smoke or fumes, e.g. flues 
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J11/00—Devices for conducting smoke or fumes, e.g. flues 
    • F23J11/04—Devices for conducting smoke or fumes, e.g. flues  in locomotives; in road vehicles; in ships
    • 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
    • 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
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
    • 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

Landscapes

  • 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)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The invention relates to a gas water heater. The gas water heater has a flue. A plurality of heat exchange teeth or heat exchange plates which are integrated with exhaust pipes are linearly distributed in an axial direction on the outer circumferential walls of the exhaust pipes; hot exhaust gas entering from the bottom of a cylinder is suitable for being discharged from an exhaust port in the top of the cylinder just through the exhaust pipes; fresh air sucked from a fresh air inlet near the top of the cylinder exchanges heat with the outer walls of the exhaust pipes and the fresh air is output from a hot air outlet near the bottom of the cylinder; at least one guide plate is arranged in the cylinder, gas guide holes corresponding to the exhaust pipes are distributed on the guide plates, and the exhaust pipes are alternately inserted into corresponding gas guide holes, respectively; the cylinder is integral or is composed of a plurality of parts which are connected in series up and down. The cylinder can be vertically, obliquely or horizontally arranged if being used.

Description

Gas heater
Technical field
The present invention relates to the technical field of energy-saving flue, specifically a kind of flue being suitable to reclaim heat energy, be particularly applicable to all equipment being suitable to discharge hot waste gas such as motor vehicles, coal furnace, oil burner, gas furnace and gas heater.
Background technology
Existing combustion furnace, as: coal furnace, oil burner, gas furnace and gas heater etc., the hot waste gas of generation directly goes out from flue or forced-ventilated bank of tubes；And these hot waste gas often have higher temperature, how to utilize the heat energy of these hot waste gas and improve the combustion heat value of the coal in described combustion furnace or gas, to improve resource utilization, being that this area to solve the technical problem that.
Summary of the invention
The gas heater being suitable to reclaim the flue of heat energy that the technical problem to be solved is to provide a kind of simple in construction, heat energy recovery rate is higher.
For solving above-mentioned technical problem, flue provided by the invention includes: cylinder, be axially located at multiple exhaustors in this cylinder；The periphery wall of described exhaustor lineal layout vertically has multiple heat exchange tooth with this exhaustor one or heat exchanger fin；The hot waste gas entered from described cylinder body bottom is suitable to discharge from the air vent at described cylinder top merely through after described exhaustor；From the hot air outlet output of contiguous described cylinder body bottom after the new air of new air intake suction at contiguous described cylinder top and the outer wall heat exchange of described exhaustor.
The uniformity of for the benefit of heat exchange, described heat exchange tooth or heat exchanger fin centrosymmetry are distributed in the periphery wall of exhaustor.
For making the air of suction as far as possible along each exhaustor straight line to bottom displacement, to extend heat-exchange time and to improve heat energy recovery rate, described exhaustor is straight tube；Being provided with a deflector in described cylinder, on this deflector, distribution has the gas flow guiding hole corresponding with each exhaustor, and each exhaustor is respectively interposed in corresponding gas flow guiding hole；This deflector is adjacent with the new air intake of described cylinder, and the end face of this deflector is not higher than bottom the inwall of the new air intake of described cylinder.
For further ensuring that the air of suction is as far as possible along each exhaustor straight line to bottom displacement, the middle part of described cylinder, and/or middle and upper part, and/or middle and lower part, is additionally provided with deflector.On this deflector, distribution has the gas flow guiding hole corresponding with each exhaustor, and each exhaustor is respectively interposed in corresponding gas flow guiding hole.
For convenience of assembling and mass production, described cylinder includes being vertically connected with and the upper and lower part of symmetrical configuration；Wherein, described top is divided and is included: upper shell, be located at the upper flange bottom this upper shell, and the bottom of upper shell is provided with sealing plate, this sealing plate outer rim weld with the inner wall sealing of upper shell；Each exhaustor is through sealing plate, and the through hole coordinated with each exhaustor on this sealing plate seals with the outer wall of each exhaustor and welds；Or, the bottom port of each exhaustor is welded in the respective through hole on sealing plate；Be provided with groove in the inner side of the connecting end surface of described upper flange, bottom contiguous described upper shell and in described sealing plate top distribution have air passing hole；Groove on described upper flange is communicated with the inner chamber of upper shell by this air passing hole.
Described lower part includes: lower shell, be located at the lower flange at this lower shell top；The bottom of upper shell and the top of lower shell are tightly connected by a sealing ring, to prevent hot waste gas from leaking in the air of suction；The connecting end surface of described upper and lower flange is sealedly and fixedly connected.
During work, new air enters after upper shell, pass sequentially through from the bottom of upper shell sealing plate, the air passing hole of bottom of upper shell, groove between upper flange and lower flange, the air passing hole at top of lower shell, lower shell the sealing plate at top, enter lower shell；Last from the hot air outlet discharge lower shell.
For making the air-flow of entrance lower shell be connected with one piece of deflector along each exhaustor straight line to bottom displacement, the top of vicinity lower shell and the air passing hole on this lower shell as far as possible.
Heat exchange tooth or the height of heat exchanger fin on described exhaustor are gradually increased from top to bottom direction, to improve contact area；Simultaneously because the temperature of bottom is higher, increases contact area and can improve heat energy recovery rate；Described gas flow guiding hole is reverse taper hole, is beneficial to air-flow as far as possible along each exhaustor straight line to bottom displacement.
A kind of motor vehicles applying above-mentioned flue, on the exhaust pipe of the electromotor that described flue string is located in this motor vehicles；New air intake on contiguous described cylinder, or the hot air outlet place on contiguous described cylinder, be provided with air exhauster；The described hot air outlet of flue is connected with the air suction inlet of described electromotor；During work, the new air heat-exchange sucked is hot-air by flue, is then fed into the air suction inlet of described electromotor.Described electromotor is gasoline or Diesel engine or gas engine.
A kind of combustion furnace applying above-mentioned flue, comprising: combustor；Described flue for discharging waste gas is connected with this combustor；New air intake on contiguous described cylinder, or the hot air outlet place on contiguous described cylinder, be provided with air exhauster；The described hot air outlet of flue is connected with described combustor；During work, the new air heat-exchange sucked is hot-air by flue, is then fed into the combustor of combustion furnace.Hot-air and coal or gas mixed combustion, be suitable to improve the combustion heat value of coal or gas, improve resource utilization, be suitable to energy-saving and emission-reduction.
A kind of gas heater applying above-mentioned flue, it includes combustor；The exhaust pipe of described flue and this combustor is contacted；New air intake on contiguous described cylinder, or the hot air outlet place on contiguous described cylinder, be provided with air exhauster；The described hot air outlet of flue is connected with described combustor；During work, the new air heat-exchange sucked is hot-air by flue, is then fed into described combustor.
The present invention has positive effect relative to prior art: the flue of (1) present invention is suitable to reclaim the heat energy in the hot waste gas discharged, and the new air of suction and the hot waste gas of discharge form heat convection effect when heat exchange, so heat energy recovery rate is higher.With the heat exchange tooth of this exhaustor one or heat exchanger fin, in order to increase heat exchange area, the air of suction can be made as far as possible along each exhaustor straight line to bottom displacement, to extend the time of heat exchange contact and to improve heat energy recovery rate simultaneously；Cylinder arranges a deflector, each exhaustor is made to be respectively interposed in the corresponding gas flow guiding hole on deflector, when making the new air of suction respectively through each gas flow guiding hole, fit along each exhaustor straight line to bottom displacement, and then extend heat-exchange time, improve heat energy recovery rate；(2) flue will be hot-air from the new air heat-exchange outside flue, is then fed into combustor and coal or gas mixed combustion, improves the combustion heat value of coal or gas etc., improves resource utilization, is suitable to energy-saving and emission-reduction.Cylinder can be integral type, or is made up of the multiple parts concatenated up and down.Cylinder use time can vertically, tilt or be horizontally disposed with, to meet the installation needs of various occasion.
Accompanying drawing explanation
Fig. 1 is the structural representation of combustion furnace in embodiment 1；
Fig. 2 is the A-A sectional structure chart in Fig. 1；
Fig. 3 is the structural representation of the combustion furnace applying above-mentioned flue；
Fig. 4 is the structural representation of the deflector in flue；
Fig. 5 is the cross-sectional view of the exhaustor in flue；
Fig. 6 is the another kind of cross-sectional view of described exhaustor；
Fig. 7 is the third cross-sectional view of described exhaustor；
Fig. 8 is the partial enlarged drawing of Fig. 1.
Detailed description of the invention
Embodiment 1
Seeing Fig. 1 to 8, the flue of the present embodiment includes: in the longitudinally disposed actually used process of cylinder 4(, cylinder 4 also can laterally or diagonally be arranged), be axially located at multiple exhaustors 6 in this cylinder 4；The bottom center of cylinder 4 is provided with hot waste gas entrance 40, in cylinder 4, contiguous described hot waste gas entrance 40 is provided with gas distribution plate 43, on this gas distribution plate 43, distribution has through hole, each through hole seals with the bottom port of corresponding exhaustor 6 and is connected, the outer rim of gas distribution plate 43 seals with the bottom interior wall of cylinder 4 and welds, so that the hot waste gas entered from the bottom of described cylinder 4 is suitable to discharge from the air vent 44 at described cylinder top merely through after described exhaustor 6；Being close to the top of described cylinder 4, be provided with new air intake 45 lower than the top port place of each exhaustor 6, the bottom of contiguous described cylinder 4 is provided with hot air outlet 46；The position of this hot air outlet 46 is higher than described gas distribution plate 43.
For improving heat transfer effect, the periphery wall axial distribution of described exhaustor 6 has multiple with this exhaustor one, centrosymmetric heat exchange tooth or heat exchanger fin 61, to increase heat exchange area.The cross section of heat exchange tooth or heat exchanger fin 61 is triangular in shape, rectangle, shaped form or S shape.
Described exhaustor 6 is straight tube, is beneficial to guarantee the speed of aerofluxus；For making the air of suction as far as possible along each exhaustor 6 straight line to bottom displacement, to extend heat-exchange time and to improve heat energy recovery rate；Being provided with a deflector 7 in described cylinder 4, on this deflector 7, distribution has the gas flow guiding hole 71 corresponding with each exhaustor 6, and each exhaustor 6 is respectively interposed in corresponding gas flow guiding hole 71；This deflector 7 is adjacent with the new air intake 45 of described cylinder 4, and bottom the inwall that the end face of this deflector 7 is not higher than the new air intake 45 of described cylinder 4.The new air entered from new air intake 45 is adapted to pass through described gas flow guiding hole 71, and along each exhaustor 6 straight line to bottom displacement.
For guaranteeing that the air of suction is as far as possible along each exhaustor straight line to bottom displacement, the middle part of described cylinder 4, and/or middle and upper part, and/or middle and lower part, is additionally provided with deflector 7.On this deflector 7, distribution has the gas flow guiding hole corresponding with each exhaustor, and each exhaustor is respectively interposed in corresponding gas flow guiding hole.
For making the air of suction as far as possible along each exhaustor 6 straight line to bottom displacement, to extend heat-exchange time and to improve heat energy recovery rate, owing to the temperature bottom exhaustor 6 is higher than top, heat exchange tooth or the height of heat exchanger fin 61 on described exhaustor 6 are gradually increased from top to bottom direction, to improve contact area；Simultaneously because the temperature of bottom is higher, increases contact area and can improve heat energy recovery rate.
The surface of each heat exchange tooth or heat exchanger fin 61 processes through frosted, to improve surface area, and then improves heat energy recovery rate.
The inner wall smooth of each exhaustor 6, to prevent travel fatigue from adhering to, gathering.
The hot waste gas entrance 40, the new air intake 45 of described cylinder 4 that enter bottom described cylinder 4 are provided with dust filtration device, and the travel fatigue to reduce the inside and outside wall of each exhaustor 6 adheres to, and then guarantees heat energy recovery rate.
The hot-air that flue generates is suitable to send in the winter time heating of house, or owing to generating hot water, or send into combustor.
Embodiment 2
On the basis of embodiment 1, there is following deformation in the flue of the present embodiment:
For convenience of assembling and mass production, described cylinder 4 includes being vertically connected with and the upper and lower part of symmetrical configuration；Wherein, described top is divided and is included: upper shell 41, be located at the upper flange 9 bottom this upper shell 41, the top of upper shell 41 is located at by described air vent 44, described new air intake 45 is located at the top being adjacent to upper shell 41 and in the side, lower section of described air vent 44, and is in the top of described distribution plate 43.
The bottom of upper shell 41 is provided with sealing plate 8, and the outer rim of this sealing plate 8 is welded with the inner wall sealing of upper shell 41；Each exhaustor 6 is through sealing plate 8, and the through hole coordinated with each exhaustor 6 on this sealing plate 8 seals with the outer wall of each exhaustor 6 and welds；Or, the bottom port of each exhaustor 6 is welded in the respective through hole on sealing plate 8.
Be provided with groove 90 in the inner side of the connecting end surface of described upper flange 9, bottom contiguous described upper shell 41 and in the top of described sealing plate 8, distribution has air passing hole 46；Groove 90 on described upper flange 9 is communicated with the inner chamber of upper shell 41 by this air passing hole 91.
Described lower part includes: lower shell 42, be located at the lower flange 10 at this lower shell 42 top；Described hot waste gas entrance 40 is located at the bottom center of lower shell 42, and described hot air outlet 46 is located at the bottom side of lower shell 42.
The bottom of upper shell 41 and the top of lower shell 42 are tightly connected by a sealing ring 11, to prevent hot waste gas from leaking in the air of suction；The connecting end surface of described upper and lower flange is sealedly and fixedly connected.
Groove 90 on upper and lower flange is oppositely arranged and constitutes a cavity, and this cavity is suitable to communicate with the air passing hole 46 at the bottom of upper shell 41 and the top of lower shell 42 respectively.
During work, after new air enters upper shell 41, pass sequentially through the air passing hole at the top of the described cavity between the air passing hole of the bottom of upper shell, upper flange and lower flange, lower shell from the bottom of upper shell 41, enter lower shell；Last from the hot air outlet discharge lower shell.
On the basis of this embodiment 2, described cylinder 4 can also be made up of 3-5 the part concatenated up and down.
Embodiment 3
The combustion furnace 1 of the described flue of application above-described embodiment 1 or 2, comprising: combustor 2；Described flue for discharging waste gas is connected with this combustor 2；New air intake 41 on contiguous described cylinder 4, or hot air outlet 42 place on contiguous described cylinder 4, be provided with air exhauster 5；During work, the new air heat-exchange sucked is hot-air by flue, is then fed into the combustor 2 of combustion furnace 1.Hot-air and coal or gas mixed combustion, be suitable to improve efficiency of combustion and the combustion heat value of coal or gas, improve resource utilization, be suitable to energy-saving and emission-reduction.
Embodiment 4
The motor vehicles of a kind of flue applied in above-described embodiment 1 or 2, on the exhaust pipe of the electromotor that described flue string is located in this motor vehicles；New air intake on contiguous described cylinder, or the hot air outlet place on contiguous described cylinder, be provided with air exhauster；During work, the new air heat-exchange sucked is hot-air by flue, is then fed into the air suction inlet of described electromotor.Described electromotor is gasoline or Diesel engine or gas engine.
During electromotor work, be suitable to mix the hot-air from described flue with gasoline, diesel oil or natural gas, and then be suitable to improve efficiency of combustion and combustion heat value, and then improve power and the economy of electromotor.
Embodiment 5
A kind of gas heater applied in above-described embodiment 1 or 2, it includes combustor；The exhaust pipe of described flue and this combustor is contacted；New air intake on contiguous described cylinder, or the hot air outlet place on contiguous described cylinder, be provided with air exhauster；During work, the new air heat-exchange sucked is hot-air by flue, is then fed into described combustor.
Hot-air and combustion gas mixing burning, be suitable to improve efficiency of combustion and the combustion heat value of combustion gas, improve resource utilization, be suitable to energy-saving and emission-reduction.
Obviously, above-described embodiment is only for clearly demonstrating example of the present invention, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also cannot all of embodiment be given exhaustive.And the apparent change that these spirit belonging to the present invention are extended out or variation are still among protection scope of the present invention.

Claims (1)

1. a gas heater, including flue, it is characterised in that this flue includes: cylinder, be axially located at multiple exhaustors in this cylinder；The periphery wall of described exhaustor lineal layout vertically has multiple heat exchanger fin with this exhaustor one, that cross section is triangular in shape；
The hot waste gas entered from described cylinder body bottom is suitable to discharge from the air vent at described cylinder top merely through after described exhaustor；
From the hot air outlet output of contiguous described cylinder body bottom after the new air of new air intake suction at contiguous described cylinder top and the outer wall heat exchange of described exhaustor；
Being provided with a deflector in described cylinder, on this deflector, distribution has the gas flow guiding hole corresponding with each exhaustor, and each exhaustor is respectively interposed in corresponding gas flow guiding hole；
This deflector is adjacent with the new air intake of described cylinder, and the end face of this deflector is not higher than bottom the inwall of the new air intake of described cylinder；The middle part of described cylinder, middle and upper part, middle and lower part is provided with deflector；
Described cylinder includes being vertically connected with and the upper and lower part of symmetrical configuration；
Described top is divided and is included: upper shell, be located at the upper flange bottom this upper shell, and the bottom of upper shell is provided with sealing plate, this sealing plate outer rim weld with the inner wall sealing of upper shell；Each exhaustor is through sealing plate, and the through hole coordinated with each exhaustor on this sealing plate seals with the outer wall of each exhaustor and welds；
Be provided with groove in the inner side of the connecting end surface of described upper flange, bottom contiguous described upper shell and in described sealing plate top distribution have air passing hole；Groove on described upper flange is communicated with the inner chamber of upper shell by this air passing hole；
Described lower part includes: lower shell, be located at the lower flange at this lower shell top；
The bottom of upper shell and the top of lower shell are tightly connected by a sealing ring；
The connecting end surface of described upper and lower flange is sealedly and fixedly connected；
Gas heater also includes: combustor；The exhaust pipe of described flue and this combustor is contacted；New air intake on contiguous described cylinder, or the hot air outlet place on contiguous described cylinder, be provided with air exhauster；
During work, the new air heat-exchange sucked is hot-air by flue, is then fed into described combustor.
CN201610278515.7A 2012-09-17 2012-09-17 Gas water heater Withdrawn CN105783008A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610278515.7A CN105783008A (en) 2012-09-17 2012-09-17 Gas water heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610278515.7A CN105783008A (en) 2012-09-17 2012-09-17 Gas water heater

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN201210343895.XA Division CN103672933B (en) 2012-09-17 2012-09-17 A kind of flue and apply motor vehicle, combustion furnace and the gas heater of this flue

Publications (1)

Publication Number Publication Date
CN105783008A true CN105783008A (en) 2016-07-20

Family

ID=56399963

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610278515.7A Withdrawn CN105783008A (en) 2012-09-17 2012-09-17 Gas water heater

Country Status (1)

Country Link
CN (1) CN105783008A (en)

Similar Documents

Publication Publication Date Title
CN103672933B (en) A kind of flue and apply motor vehicle, combustion furnace and the gas heater of this flue
CN204006649U (en) A kind of multitube high temperature hot-blast furnace
CN202769686U (en) Flue and locomotive car and burning furnace and gas water heater using the same
CN105783008A (en) Gas water heater
CN105783010A (en) Gas water heater for recovering heat energy of flue
CN105783011A (en) Gas water heater
CN105783009A (en) Gas water heater capable of recycling heat energy of flue
CN105805767A (en) Combustion furnace capable of recycling heat energy of flue
CN105757696A (en) Gas water heater for recycling heat energy of flue
CN109339974A (en) A kind of gas type stirling engine burner
CN205842615U (en) A kind of biomass efficient horizontal boiler
CN201945017U (en) High-efficiency and energy-saving water heating boiler
CN205481751U (en) Organic heat carrier heating furnace
CN106352551A (en) Combined condensing heat exchanger
CN101922792B (en) Cylindrical heat exchanger
CN206593088U (en) Biomass boiler chamber structure
CN214406487U (en) Biomass double-layer hot water boiler
CN111059930A (en) Heat exchanger for stainless steel band bright furnace and energy-saving combustion system
CN104061678B (en) Heart-shaped heat exchanger tube multitube high temperature hot-blast furnace
CN108954815A (en) Stable and efficient combustion boiler with air guide holes and turbulence protrusions
CN102878790A (en) Drying machine
CN203893685U (en) Flue gas waste heat utilization device
CN209840052U (en) Energy-saving and environment-friendly gas-steam boiler
CN107477858A (en) A kind of hot-water boiler of energy-conserving and environment-protective
CN212252711U (en) Convection heat exchange structure of civil clean coal heating stove

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20160720