CN107869846A - A kind of condensed type combustion gas heating stove - Google Patents

A kind of condensed type combustion gas heating stove Download PDF

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Publication number
CN107869846A
CN107869846A CN201610856050.9A CN201610856050A CN107869846A CN 107869846 A CN107869846 A CN 107869846A CN 201610856050 A CN201610856050 A CN 201610856050A CN 107869846 A CN107869846 A CN 107869846A
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CN
China
Prior art keywords
fan
heating stove
waste
heat recovery
controlled plate
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CN201610856050.9A
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Chinese (zh)
Inventor
孟令建
郑涛
曹立国
靳德峰
刘学
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青岛经济技术开发区海尔热水器有限公司
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Application filed by 青岛经济技术开发区海尔热水器有限公司 filed Critical 青岛经济技术开发区海尔热水器有限公司
Priority to CN201610856050.9A priority Critical patent/CN107869846A/en
Publication of CN107869846A publication Critical patent/CN107869846A/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT GENERATING MEANS, IN GENERAL
    • F24H8/00Fluid heaters having heat-generating means specially adapted for extracting latent heat from flue gases by means of condensation
    • F24H8/006Means for removing condensate from the heater
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT GENERATING MEANS, IN GENERAL
    • F24H9/00Details
    • F24H9/18Arrangement or mounting of grates, burners, or heating elements
    • F24H9/1809Arrangement or mounting of grates, burners, or heating elements for water heaters
    • F24H9/1836Arrangement or mounting of grates, burners, or heating elements for water heaters fluid combustible heating means
    • Y02B30/102

Abstract

The invention discloses a kind of condensed type combustion gas heating stove, including main heat exchanger, gas valve, burner, combustion chamber, exhaust fume collecting hood, flue, housing, water circulating pump, also include DC fan and waste-heat recovery device, the DC fan is induction less brush-less DC fan, including blower fan electric-controlled plate and fan body, fan body separates with blower fan electric-controlled plate, between main heat exchanger and waste-heat recovery device;Blower fan electric-controlled plate adjusts the rotating speed of fan body with the change of heating stove combustion power in real time, controls the air-fuel ratio of combustion process to keep constant.The induction less brush-less DC fan that heating stove of the present invention uses, non-inductive element and separated with blower fan electric-controlled plate in fan body so that the fan body may be used in rugged environment;DC fan wind speed is accurately adjustable simultaneously, while air-fuel ratio is definite value under different combustion powers in holding combustion chamber, is also combined with waste-heat recovery device and promotes its condensation effect, improved operating efficiency and saved the energy.

Description

A kind of condensed type combustion gas heating stove

Technical field

The present invention relates to fluid heater technical field, is related to a kind of gas heating stove, and specifically, being related to one kind can be with Lift the condensed type combustion gas heating stove of condensation effect.

Background technology

Partially premixed " IP types " gas-heating water heater on sale in the market, it is basic to use AC blower fan as combustion The supply unit of air quantity used in burning, while AC blower fan is also combined with waste heat recovery module to promote the condensation of waste heat recovery module Effect.But using AC blower fan as during heating stove blower fan, its speed is fixed or adjustable range is narrower, when heating stove is in different work( When rate is burnt, its air quantity conveyed can equally cause the thermal efficiency of the heating stove when different capacity section is burnt inconsistent, can not Ensure that air-fuel ratio remains at most ratio of greater inequality state, and the thermal efficiency can be caused to decline with the reduction of power, and then cause resource Waste;Meanwhile the heating stove product that AC blower fan is combined with waste heat recovery module, worked in heating stove less than rated power When, with the increase of oxygen content in flue gas, the condensation effect of waste-heat recovery device reduces, and heating stove operating power is smaller, remaining The condensation effect of heat reclamation device is poorer.In addition, compared with DC fan, when applied to heating stove, it is converted AC blower fan Efficiency into useful work is relatively low, i.e.,:Identical air quantity to be obtained, AC blower fan are bigger than the electrical power required for DC fan, Or volume is bigger, and the increase of electrical power or volume, it can make it that heating stove power consumption increase or heating furnace volume become big, cause Consumed stock number increases.

In view of this it is special to propose the present invention.

The content of the invention

The technical problem to be solved in the present invention is overcome the deficiencies in the prior art, there is provided one kind is by induction less brush-less direct current wind Machine is bonded the atmospheric equilibrium condensed type combustion gas heating stove of core energy-saving part with waste-heat recovery device, and DC fan wind speed can Adjust and be closed loop feedback, heating stove can be achieved and keep high efficiency under different capacity, air-fuel ratio keeps definite value, so as to thoroughly solve Determine because heating stove causes efficiency to decline with power drop caused by AC blower fan wind speed is fixed or adjustable range is narrow the problem of, kept away Energy waste is exempted from;On the other hand, waste-heat recovery device is increased less than rated power by controlling the air quantity of DC fan Under to the condensation effect of vapor so that its condensation effect is more preferably, and saved the energy;In addition, blower fan electric-controlled plate with Fan body separates and non-inductive element in fan body, fan body are suitable for adverse circumstances so that the heating stove can be extensive Applied in various use environments.

In order to solve the above technical problems, the present invention is using the basic conception of technical scheme:

The invention discloses a kind of condensed type combustion gas heating stove, including main heat exchanger, gas valve, burner, combustion chamber, collection Petticoat pipe, flue, housing, water circulating pump, in addition to DC fan and waste-heat recovery device, the DC fan are that induction less brush-less is straight Flow fan, including blower fan electric-controlled plate and fan body, the fan body separate with blower fan electric-controlled plate, installed in main heat exchanger and Between waste-heat recovery device;The blower fan electric-controlled plate adjusts the rotating speed of fan body with the change of heating stove combustion power in real time, The air-fuel ratio of combustion process is controlled to keep constant.

Further, the combustion chamber bottom is provided with burner, and top is provided with main heat exchanger, bottom combustion close to fan body High-temperature flue gas caused by burner burning is exchanged heat with top main heat exchanger in the combustion chamber, and the high-temperature flue gas changes with master Low-temperature flue gas is formed after hot device heat exchange.

Further, exhaust fume collecting hood is provided between the fan body and main heat exchanger, described fan body one end passes through collection Petticoat pipe collects the low-temperature flue gas from combustion chamber, and one end is connected transporting low temperature flue gas with waste-heat recovery device.

Further, described waste-heat recovery device one end is connected by exhaust fume collecting hood with fan body, and one end is connected with flue, The waste-heat recovery device carries out waste heat recovery to the low-temperature flue gas from exhaust fume collecting hood, then by flue by the cigarette after waste heat recovery Gas is discharged.

Further, the heating stove controls the rotating speed of fan body, the fan body by blower fan electric-controlled plate in real time The condensing heat-exchange effect for promoting waste-heat recovery device and low-temperature flue gas is combined with waste-heat recovery device.

Further, the flue is connected with waste-heat recovery device, is stretched out through housing outside heating stove, on the flue also Provided with flue gas safety temp.-limiting device.

Further, the waste-heat recovery device is additionally provided with water inlet and delivery port, the water inlet and water circulating pump phase Connection, the delivery port are connected with main heat exchanger.

Further, described main heat exchanger one end is connected with waste-heat recovery device delivery port, and a termination heating stove hot water goes out The mouth of a river, the hot water outlet include domestic hot-water's delivery port and heating hot water delivery port.

Further, the blower fan electric-controlled plate of the DC fan is arranged within the scope of the limit temperature of automatically controlled board component, or with Complete machine electric-controlled plate combines.

Further, the heating stove is additionally provided with condensation liquor collecting device, the condensation liquor collecting device and waste heat recovery Device is connected, and is discharged the condensed water being collected into outside heating stove by condensed water discharge outlet.

After adopting the above technical scheme, the present invention has the advantages that compared with prior art:

1st, the condensed type combustion gas heating stove employs what is be bonded by induction less brush-less DC fan and waste-heat recovery device Core energy-saving part, the speed adjustable range of DC fan is wider and can realize closed loop feedback control, by the wind for controlling DC fan To keep heating stove, no matter the lower air-fuel ratio of which kind of power burning is definite value to amount, and efficiency of combustion is constant, so as to thoroughly solve because The problem of heating stove caused by AC blower fan wind speed is fixed or adjustable range is narrow causes efficiency to decline with power drop, make its work Efficiency improves and more saves the energy;

2nd, on the other hand, control the wind speed of fan body in real time by blower fan electric-controlled plate, then fan body and waste heat are returned Receiving apparatus combine, can effectively facilitate waste-heat recovery device waste heat recovery heat transfer effect and less than under rated power to water The condensation effect of steam, make its condensing heat-exchange better:Compared with AC blower fan, DC fan can work as combustion with stepless time adjustment Excess air coefficient can effectively be reduced when under less than specified fired state by burning condensing plant, improve the dew point temperature that condensed water separates out Degree, add the condensation effect of burning condensing plant;

3rd, simultaneously, the DC fan applied to the gas heating stove is induction less brush-less DC fan, blower fan electric-controlled plate with Fan body is separated, and blower fan electric-controlled plate is placed lower than in the regional extent that automatically controlled board component limit temperature can allow, or Combined with overall electric-controlled plate, meanwhile, non-inductive element, adapts to hot environment in fan body.The design causes wind Machine body may be used in the environment of bad environments, and heating stove still realizes normal work under rugged environment;

4th, the induction less brush-less DC fan applied to the heating stove is using sine wave drive conversion wind speed, compare square wave and Speech, sine wave drive make it that wind speed change is gentler, can effectively reduce fan noise.

The embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings.

Brief description of the drawings

A part of the accompanying drawing as the present invention, for providing further understanding of the invention, of the invention is schematic Embodiment and its illustrate to be used to explain the present invention, but do not form inappropriate limitation of the present invention.Obviously, drawings in the following description Only some embodiments, to those skilled in the art, on the premise of not paying creative work, can be with Other accompanying drawings are obtained according to these accompanying drawings.In the accompanying drawings:

Fig. 1 is the structural representation of condensing type heating stove in the embodiment of the present invention.

In figure:1st, fan body;2nd, waste-heat recovery device;3rd, main heat exchanger;4th, gas valve;5th, burner;6th, combustion chamber; 7th, exhaust fume collecting hood;8th, flue;9th, housing, 10, flue gas safety temp.-limiting device;11st, water circulating pump;12nd, liquor collecting device is condensed;21st, enter The mouth of a river;22nd, delivery port.

It should be noted that these accompanying drawings and word description are not intended as the design model limiting the invention in any way Enclose, but be that those skilled in the art illustrate idea of the invention by reference to specific embodiment.

Embodiment

To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention In accompanying drawing, the technical scheme in embodiment is clearly and completely described, following examples be used for illustrate the present invention, but It is not limited to the scope of the present invention.

It is term " on ", " under ", "front", "rear", "left", "right", " perpendicular in the description of the invention, it is necessary to explanation Directly ", the orientation of the instruction such as " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, merely to just In the description present invention and simplify description, rather than instruction or imply signified device or element must have specific orientation, with Specific azimuth configuration and operation, therefore be not considered as limiting the invention.

In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected;Can To be mechanical connection or electrical connection;Can be joined directly together, can also be indirectly connected by intermediary.For this For the those of ordinary skill in field, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.

In heating stove of the present invention, the flammable energy is fuel gas, and burning is carried out in combustion chamber 6 and provides heat.Mixing The ratio of quality in gas between air and fuel is referred to as air-fuel ratio, the air grams typically consumed with every gram of fuel combustion come Represent.In theory, the minimum air grams needed for every gram of fuel completely burned, is called chemically correct fuel.When actual sky Combustion is than when being more than theoretical value, gas is expected less more, and burning is completely and power is smaller;When actual mixing ratio is less than theoretical value, gas is expected less It is more, incomplete combustion and power is larger.So during burning, according to the environment and demand of burning, adjustment in real time is kept Suitable air-fuel ratio can effectively facilitate burning and save the energy.Due to fuel gas, burning needs Sq in combustion chamber 6 Air, but because the difference of heating stove working environment and situation can cause the change of efficiency of combustion, therefore need blower fan herein Body 1 provides suitable air quantity to ensure that air-fuel ratio remains unchanged, so that burning fully and avoids energy waste.

On the other hand, in order to efficiently utilize high-temperature gas caused by fuel gas, waste heat is additionally provided with heating stove and is returned Receiving apparatus 2, for recycling the cryogenic gas with being formed after the heat exchange of main heat exchanger 3.And waste-heat recovery device 2 is in heat transfer process In, when the cooling of low-temperature flue gas temperature can produce condensed water to a certain extent.A concept is introduced herein to illustrate:Dew point temperature Degree, refers to air under conditions of moisture content and air pressure are constant, is cooled to temperature during saturation, be exactly in air figuratively Temperature of vapor when being changed into dewdrop dew-point temperature.When steam has reached saturation in air, temperature and dew-point temperature It is identical;When steam is not up to saturation, temperature is necessarily higher than dew-point temperature.Dew-point temperature is not a fixed value, and it can be with Steam partial pressure and excess air coefficient in flue gas change and changed:Steam partial pressure is proportional with dew-point temperature, superfluous empty Gas coefficient and dew-point temperature are in inverse ratio.If wanting to increase condensation effect, excess air coefficient need to be reduced, and excess air coefficient with Oxygen content in air is proportionate, and air coefficient can be effectively reduced by the oxygen content reduced in flue gas.Therefore need blower fan sheet The cooperation of body 1 increases condensation effect to provide suitable air quantity, and discharge is collected smoothly to separate out condensed water.

Embodiment one

As shown in figure 1, it is a kind of structural representation of condensing type heating stove.One kind described in the present embodiment can be controlled accurately Air quantity and the dual-purpose heating stove of combustion gas condensing for increasing condensation effect, are " IP " type gas-heating hot water facility, can provide life Apply flexibly water and the supply of heating water two path water.It is domestic water supply all the way, is directly heated using the calory burning of the flammable energy Water, the hot water of heating is then supplied to user, is mainly used in living daily;It is heating water all the way, heating is used for water The temperature in heating space is lifted, the heating in heating stove is connected to the water route in water water route and heating space:Heating stove Heat transferring medium (being herein aqueous water) is heated, the high temperature heat transferring medium then heated passes through the matchmakers such as the pipeline located at heating space Jie is exchanged heat with external agency, and the temperature of external agency accordingly raises, and the high temperature heat exchange medium temperature drop in pipeline medium Low, the heat transferring medium of cooling flows back to heating stove further through the water circulating pump 11 of heating stove and reheated, so as to realize in a steady stream not Disconnected high temperature heat transferring medium supply, so as to reach the heating effect in heating space.

The main devices of the heating stove include fan body 1, waste-heat recovery device 2, main heat exchanger 3, gas valve 4, burning Device 5, combustion chamber 6, exhaust fume collecting hood 7, flue 8, housing 9 and water circulating pump 11, in addition to water passage circulation system.Wherein, DC fan For induction less brush-less DC fan, interior position-sensor-free, including blower fan electric-controlled plate and fan body 1, blower fan electric-controlled plate and blower fan Body 1 separates.In heating stove structure setting, fan body 1 is located between main heat exchanger 3 and waste-heat recovery device 2, and wind speed can Adjust.Main heat exchanger 3 is located at the top of combustion chamber 6, and the bottom of combustion chamber 6 is provided with burner 5.Because fan body 1 is in main heat exchange Between the two, blower fan electric-controlled plate, on the one hand can be by accurately controlling the rotating speed of fan body 1 for device 3 and waste-heat recovery device 2 Promote the air-fuel ratio of combustion chamber 6 to keep constant under different combustion powers, on the other hand can increase opposite side waste heat and return Receiving apparatus 2 is less than the condensation effect under rated power.Compared with existing AC blower fan is as the freezing machine of air quantity supply unit, Can progressively it increase less than the oxygen content in the flue gas under rated load, and oxygen content during minimum load in flue gas is most, according to upper State theory, excess air coefficient now is maximum, i.e., dew-point temperature is minimum, so when flue gas condensation effect it is worst.Therefore with friendship Flow fan is compared, and using DC fan, air quantity can be with stepless time adjustment, the oxygen content of smoke gas under less than specified fired state Less than the oxygen content corresponded to using AC blower fan under power, that is, to reduce excess air coefficient, and then raising dew-point temperature, increase Use the burning condensing plant condensation effect of DC fan.

When the heating stove works, it is first turned on gas valve 4 and discharges combustible gas, combustible gas lights burning through burner 5, Burnt in combustion chamber 6 and produce high-temperature flue gas, high-temperature flue gas and the liquid heat transfer medium in the main heat exchanger 3 on the top of combustion chamber 6 Exchanged heat.During this, fan body 1 be combustion process convey air quantity, blower fan electric-controlled plate with heating stove combustion power change Change the rotating speed of regulation fan body 1 in real time, control the air-fuel ratio of combustion process to remain definite value, improve efficiency of combustion, save The energy.Herein, the factor that heating stove combustion power can be caused to change includes the environmental factors such as extraneous blast, temperature, or flue resistance Plug, the internal factor such as burner is not smooth.

Exhaust fume collecting hood 7 is provided between fan body 1 and main heat exchanger 3, the exhaust fume collecting hood 7 is mainly used in collection and results from burning Flue gas in chamber 6.Low-temperature flue gas is formed after liquid heat exchange caused by combustible gas burning in high-temperature flue gas and main heat exchanger 3, Exhaust fume collecting hood 7 collects low-temperature flue gas, and is filled by the way that low-temperature flue gas is transported into waste heat recovery with one end that waste-heat recovery device 2 is connected Put 2.

Because the major function of waste-heat recovery device 2 is that the liquid in low-temperature flue gas and internal watercourses pipeline is carried out into heat exchange in fact Existing waste heat recovery, low-temperature flue gas temperature declines and can form condensate liquid and be attached to outside internal watercourses pipeline again in the heat transfer process On wall, due to temperature drop to below dew point be condensation vapor necessary condition, so when blower fan electric-controlled plate control blower fan sheet in real time The rotating speed of body 1, increase wind speed provide suitable air quantity, reduce the environment temperature of waste-heat recovery device 2 so that and steam reaches saturation, with Just condensed water is smoothly separated out, now fan body 1 promotes waste-heat recovery device 2 less than the condensation effect under rated power; Fan body 1 adjusts wind speed simultaneously, and low-temperature flue gas can be promoted to accelerate flowing in smoke flow channels, the unit interval it is interior with it is remaining The gross contact area increase of heat reclamation device 2, the heat transfer effect of waste-heat recovery device 2 is promoted again.

The flue gas for completing waste heat recovery discharges outdoor by the flue 8 being connected with waste-heat recovery device 2.The flue 8 passes through Housing 9 is stretched out outside heating stove, is additionally provided with flue gas safety temp.-limiting device 10 above, for detecting the flue-gas temperature of discharge, is prevented The problem of flue gas is too high.

Fan body 1 described in the present embodiment converts wind speed method and changed for sine wave drive, for comparing square wave, sine wave Driving make it that wind speed conversion is gentler, can effectively reduce fan noise.

Embodiment two

The present embodiment is the further restriction to above-described embodiment one, and waste-heat recovery device 2 is provided with water inlet 21 and water outlet Mouth 22, water inlet 21 is connected with water circulating pump 11, and delivery port 22 is connected with main heat exchanger 3.And the level height of its delivery port 22 Less than the level height of water inlet 21, to facilitate liquid to flow out.Internal system liquid (i.e. heat transferring medium) is first through water circulating pump 11 Waste-heat recovery device 2 is first entered by water inlet 21, entered after being exchanged heat in waste-heat recovery device 2 with low-temperature flue gas through delivery port 22 Main heat exchanger 3.The one end of main heat exchanger 3 is connected with the delivery port 22 of waste-heat recovery device 2, a termination hot water outlet.Internal system Liquid is flowed out after main heat exchanger 3 is interior and high-temperature flue gas is exchanged heat, then through internal system pipeline by hot water outlet.Herein Hot water outlet includes domestic hot-water's delivery port and heating hot water delivery port.

Embodiment three

The present embodiment is the further restriction to above-described embodiment one:The electric-controlled plate of DC fan separates with fan body 1, The electric-controlled plate is arranged on can normal work in the region that automatically controlled board component limit temperature can allow.Due to fan body 1 and wind Electrical Control plate is compared, and the temperature range that it is adapted to is more extensive, after the environmental suitability influence for eliminating blower fan electric-controlled plate so that should The heating stove of DC fan may apply to adverse circumstances and be operated.Preferably, the blower fan electric-controlled plate of DC fan and heating Stove entirety electric-controlled plate combines, and the concentration design of electric-controlled plate make it that extraneous control operation is more convenient simple.

Preferably, non-inductive element in the fan body 1, in the heating stove course of work, even after heat exchange Low-temperature flue gas its temperature be still up to 150 DEG C, the environment temperature of fan body 1 can be influenceed up to 80 DEG C, in addition blower fan Mechanical movement heating and low-temperature flue gas in the running of body 1 are conducted to the heat of blower motor, the temperature at blower motor 130 DEG C may be up to, according to the brushless DC blower with sensing element and electric control gear, is occurred in the environment Failure causes fault rate to raise.Based on this, fan body 1 of the invention is induction less brush-less DC fan, interior non-inductive element And electric control gear, influence of the high temperature to fan body 1 can be effectively prevented from.Therefore the suitable environment of fan body 1 is not sensed The influence of the element scope of application, hot environment can be resisted.It is further preferred that the induction less brush-less direct current wind described in the present embodiment In the environment of machine, i.e. fan body 1 are applied to temperature not higher than 180 DEG C.

Example IV

The present embodiment is the further restriction to above-described embodiment one:The waste-heat recovery device 2 of heating stove with low temperature cigarette Gas can form condensed water during exchanging heat, and condensed water is attached on internal pipeline medium, and not discharging for a long time can be to internal components Function impact.It can not be discharged to eliminate condensation water loading on being influenceed caused by heating stove work, the heating stove is additionally provided with Liquor collecting device 12 is condensed, the condensation liquor collecting device 12 is connected with waste-heat recovery device 2, collects the condensation formed after heat exchange Water, condensed water is discharged by the condensed water discharge outlet being provided thereon when the condensed water being collected into reaches a certain amount of.

Described above is only presently preferred embodiments of the present invention, not makees any formal limitation to the present invention, though So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any technology people for being familiar with this patent Member without departing from the scope of the present invention, when the technology contents using above-mentioned prompting make it is a little change or be modified to The equivalent embodiment of equivalent variations, as long as being the content without departing from technical solution of the present invention, the technical spirit pair according to the present invention Any simple modification, equivalent change and modification that above example is made, in the range of still falling within the present invention program.

Claims (10)

1. a kind of condensed type combustion gas heating stove, including main heat exchanger (3), gas valve (4), burner (5), combustion chamber (6), collection cigarette Cover (7), flue (8), housing (9), water circulating pump (11), it is characterised in that:Also include DC fan and waste-heat recovery device (2), the DC fan is induction less brush-less DC fan, including blower fan electric-controlled plate and fan body (1), the fan body (1) separated with blower fan electric-controlled plate, between main heat exchanger (3) and waste-heat recovery device (2);The blower fan electric-controlled plate is with adopting The change of radiator combustion power adjusts the rotating speed of fan body (1) in real time, controls the air-fuel ratio of combustion process to keep constant.
2. condensed type combustion gas heating stove according to claim 1, it is characterised in that:Combustion chamber (6) bottom is provided with combustion Burner (5), top are provided with main heat exchanger (3) close to fan body (1), high-temperature flue gas caused by combustion bottom burner (5) burning with Top main heat exchanger (3) is exchanged heat in the combustion chamber (6), and the high-temperature flue gas is formed after being exchanged heat with main heat exchanger (3) Low-temperature flue gas.
3. condensed type combustion gas heating stove according to claim 2, it is characterised in that:The fan body (1) and main heat exchange Exhaust fume collecting hood (7) is provided between device (3), described fan body (1) one end is collected low from combustion chamber (6) by exhaust fume collecting hood (7) Warm flue gas, one end are connected transporting low temperature flue gas with waste-heat recovery device (2).
4. condensed type combustion gas heating stove according to claim 3, it is characterised in that:Described waste-heat recovery device (2) one end It is connected by exhaust fume collecting hood (7) with fan body (1), one end is connected with flue (8), and the waste-heat recovery device (2) is to from collection The low-temperature flue gas of petticoat pipe (7) carries out waste heat recovery, then is discharged the flue gas after waste heat recovery by flue (8).
5. condensed type combustion gas heating stove according to claim 4, it is characterised in that:The heating stove passes through blower fan electric-controlled plate The rotating speed of control fan body (1) in real time, the fan body (1) combines with waste-heat recovery device (2) promotes waste heat recovery dress Put the condensing heat-exchange effect of (2) and low-temperature flue gas.
6. condensed type combustion gas heating stove according to claim 4, it is characterised in that:The flue (8) fills with waste heat recovery Put (2) to be connected, stretched out through housing (9) outside heating stove, flue gas safety temp.-limiting device (10) is additionally provided with the flue (8).
7. condensed type combustion gas heating stove according to claim 4, it is characterised in that:The waste-heat recovery device (2) also sets Have water inlet (21) and delivery port (22), the water inlet (21) is connected with water circulating pump (11), the delivery port (22) with Main heat exchanger (3) is connected.
8. condensed type combustion gas heating stove according to claim 7, it is characterised in that:Described main heat exchanger (3) one end with it is remaining Heat reclamation device delivery port (21) is connected, and a termination heating stove hot water outlet, the hot water outlet goes out including domestic hot-water The mouth of a river and heating hot water delivery port.
9. condensed type combustion gas heating stove according to claim 1, it is characterised in that:The blower fan electric-controlled plate of the DC fan Combined within the scope of the limit temperature of automatically controlled board component, or with complete machine electric-controlled plate.
10. condensed type combustion gas heating stove according to claim 1, it is characterised in that:The heating stove is additionally provided with condensate liquid Collection device (12), the condensation liquor collecting device (12) are connected with waste-heat recovery device (2), will be received by condensed water discharge outlet Outside the condensed water discharge heating stove collected.
CN201610856050.9A 2016-09-27 2016-09-27 A kind of condensed type combustion gas heating stove CN107869846A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111121276A (en) * 2018-10-30 2020-05-08 宁波方太厨具有限公司 Gas water heater capable of preventing condensed water and control method

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