Waste recovery method and device is adjusted in a kind of gas-cooker
Technical field
The present invention relates to a kind of gas-cookers, and waste recovery method and device is adjusted, and belongs to kitchen kitchenware technology neck
Domain.
Background technique
According to statistics, for existing catering trade gas-cooker due to serious heat loss, sky burning phenomenon is universal, and the average thermal efficiency is only
20%, thermal loss is up to 80%, causes great energy waste.The thermal efficiency of so-called gas-cooker is generally exactly to fire
Gas kitchen is in use to the effective rate of utilization of gas thermal energy.As can be seen that household gas range from the thermal efficiency of gas-cooker
Have the phenomenon not high in the prevalence of gas thermal energy utilization rate, there is about 40~50% gas thermal energy to be wasted in use.
Used commercial gas kitchen range on Vehicles Collected from Market, combustion system still use the open combustion system of traditional positive pressure, combustion
Combustion flame and high-temperature flue gas is made directly to leak in gas combustion process, so that being formed after fuel gas buring a large amount of unburnt
High-carbon gas is directly discharged into ambient enviroment, so that the heat that fuel gas buring generates only has a small part to be utilized by cookware,
Efficiency of heating- utilization is extremely low.And due to that will bring atmosphere pollution and noise dirty in imperfect combustion combustion gas release and ambient enviroment
Dye.Therefore, either household gas utensils or commercial gas kitchen range all suffer from energy significant wastage in use
Serious problems.
Following patent document is can be found that by the retrieval to the gas-cooker recuperation of heat prior art:
Applicant Hefei Shunchang distributed energy comprehensive application technology Co., Ltd discloses a series of commercial gas pots and stoves
Fume waste heat recyclable device, including recyclable device, hot water supply system, unpowered recovery system etc., including shell, the shell
Inner vertical water inlet manifold and outfall sewer are installed, water inlet manifold is mounted on the right end of shell, outfall sewer is mounted on
The left end of shell, the bottom of water inlet manifold are equipped with water inlet pipe, outlet pipe, water inlet pipe and water outlet are equipped at the top of outfall sewer
It is fitted with manually-operated gate on pipe, square finned tube is installed between water inlet manifold and outfall sewer, is installed on square finned tube
There is fin.However the configuration of its structure is complicated, and it is inconvenient to control in use process, and it is inefficient, effective use waste heat can not be maximized
Energy.
Applicant's gold dollar leather discloses a kind of commercial gas-fired stove residual heat using device, is by water-jacket typ burner hearth, water tank, furnace
Thorax water inlet pipe, burner hearth outlet pipe, flowing water Valve, ball-cock assembly, cold water inlet composition.It is characterized in that having water-jacket typ burner hearth, water-jacket typ
The hearth wall of burner hearth is hollow structure, and internal water storage forms water jacket structure, to realize to the circulating-heating of water in water tank, is had
The collection fuel gas buring of effect is lost to the heat on burner hearth.But it is only through heat exchange and takes heat from gas-cooker periphery to
In water tank, partial heat once focuses more, and heat exchange efficiency necessarily declines, very inconvenient in actual use.
Applicant Nanjing Jin Gong kitchen tool apparatus Co., Ltd discloses a kind of commercial gas-fired stove for realizing flue gas waste heat recovery,
Including hearth, flue gas waste heat recovery apparatus, the combustion gas branch being connect with the hearth, by the flue gas waste heat recovery apparatus and stove
The air passage and flue gas branch that platform links together.Wherein flue gas branch passes through flue gas waste heat recovery apparatus phase with air passage
Mutual interconnection, flue gas exchange heat with air, and air themperature is promoted while reducing heat loss due to exhaust gas, realize and enter combustion gas
The air preheat of stove burning, to improve fuel gas buring efficiency, energy-saving effect is significant.Flue gas waste heat recovery apparatus is a stainless steel
The plate heat exchanger of material, pressure drop are less than 20P a, and surface increases disturbance and heat exchange area, compact-sized, modularization using salient point
Design be mountable in the smoke discharging pipe of gas-cooker.It is to be exchanged heat using flue gas and air by heat utilization to air inlet
In air, the heating to inlet air is realized to improve the thermal efficiency, however this gas converting heat heat exchanging device is more demanding,
Practical heat transfer effect is unsatisfactory.
Therefore, these problems are faced, it is necessary to improve to the prior art, realize that one kind can maximize realization combustion gas
The system that Waste Heat Recovery recycles is adjusted in stove exhaust gas, can carry out the adjusting of recuperation of heat according to actual needs, improves combustion gas
It is directly benefited in combustion gas from saving can not only to make people for energy-efficient performance in stove use, but also for the effective of combustion gas resource
Using and the protection of environmental resource all have important practical significance.
Summary of the invention
In order to solve the above-mentioned technical problem, the application proposes that waste recovery method and device is adjusted in a kind of gas-cooker,
The different situations that can carry out recuperation of heat according to actual needs are adjusted, and meet the actual demand of diversification, while maximizing realization
Recycling to gas-cooker waste heat.
To achieve the above object, the technological means that the present invention uses are as follows:
A kind of adjustable waste recovery method of gas-cooker, comprising the following steps:
1) burner assembly is constructed, which includes the burner and bracing ring that can be integrated on gas-cooker,
Burner base is provided with air outlet slit, so as to form the combustion zone for lighting gas-air gaseous mixture, in burner along ring
Shape body interior forms the toroidal cavity for accommodating heat transferring medium fluid, is respectively arranged with the above-mentioned ring of connection in burner shell two sides
The waste heat fluid outlet of shape cavity and waste heat fluid entrance;
2) construct two different heat exchangers so that heat transferring medium fluid can pass sequentially through above-mentioned two heat exchanger or
Person only passes through first heat exchanger;
3) setting connection control piper component, the flow path of heat transferring medium fluid is controlled by a three-way control valve,
Optionally through or pass through above-mentioned second heat exchanger.
Specifically, waste recovery method is adjusted in a kind of gas-cooker, comprising the following steps:
S101: whether initial detecting safety: leaking including detection pipeline, and whether air pressure normally waits gas-cookers to operate normally
Condition whether have;
S102: ventilation igniting: completing ventilation and ignition process, realizes normal ignition combustion process;
S103: the actual demand used according to gas-cooker, manual operation or be automatically brought into operation carry out Waste Heat Recovery model selection,
It may be selected to enter step any of S201, S202;
S201: selection recuperation of heat normally utilizes mode, and adjusting three-way control valve is the first communicating position (K2=1), thus
The fluid circulation that heat exchanging medium flow body is formed passes through two heat exchangers, and the storage for completing heating and waste heat to inlet air is returned
It receives;
S202: selecting single heat exchange take-back model, and adjusting three-way control valve is the second communicating position (K2=2), thus
The fluid circulation that heat exchanging medium flow body is formed completes the heating to inlet air merely through first heat exchanger;
S104: real-time detection heat exchange medium temperature T, if T be greater than early warning temperature T1, then it represents that heat exchange medium temperature compared with
Height needs to enter step S105;
Step S105: being alarmed and cuts off combustion process.
Meanwhile the invention also discloses use a kind of corresponding adjustable waste heat recovery plant of gas-cooker of the above method, packet
Burner assembly, heat exchanger assemblies, water tank and connection control piper component are included, wherein burner assembly includes that can integrate
Burner and bracing ring on to gas-cooker are provided with air outlet slit in burner base, so as to form for lighting combustion gas sky
The combustion zone of gas gaseous mixture forms the toroidal cavity for accommodating heat transferring medium fluid inside annular body in burner, is burning
Device shell two sides are respectively arranged with the waste heat fluid outlet for connecting above-mentioned toroidal cavity and waste heat fluid entrance;
Heat exchanger assemblies include first heat exchanger and second heat exchanger, wherein the upstream fluid of first heat exchanger
Pipeline and waste heat fluid outlet, the downstream fluid of first heat exchanger and the fluid inlet of second heat exchanger connect
Logical, the upstream end of first fluid loop pipe and the downstream fluid of first heat exchanger connect, and formation is controlled by three-way control valve K
The triplate line (one into two is logical) of system, first fluid loop pipe downstream is connected to fluid circuit general pipeline, also forms a tee tube
Road (two into one is logical), first heat exchanger is provided with air inlet duct in the side vertical with heat transferring medium fluid flow direction,
Air pump and air flow control valve are selectively provided on the air inlet duct.
The downstream fluid of second heat exchanger is connected to second fluid loop pipe, first fluid loop pipe and second
Body loop pipe downstream is communicated on fluid circuit general pipeline, and the downstream of fluid circuit general pipeline is connected to waste heat fluid entrance, from
And the heat transferring medium fluid Jing Guo heat exchange twice is flow back into burner and carries out recuperation of heat again.
Selectively, fluid replenishment pump is additionally provided in the downstream of fluid circuit general pipeline.Second heat exchanger with change
The vertical side of thermal medium fluid flow direction is provided with water tank comprising the cold water being connected to second heat exchanger flows into pipe
With hot water effuser, the cold water flowed into second heat exchanger is exchanged heat by heat exchanger tube and heat transferring medium fluid, will be inhaled
It has received the partial heat in the heat transferring medium fluid of waste heat thermal energy and has passed to liquid water progress energy storage and use, realized combustion
The effective recycling of gas kitchen waste heat.
Selectively, burner includes the inclined surface of transition between inner ring platform and outer ring platform, which encloses
It is arranged around the combustion zone of gas-cooker, surface is made of copper or aluminum infrared reflecting layer.Annular is set around inclined surface
The blind hole of arrangement, blind hole can integrally casting formed.
Using above-mentioned technological means, the key innovations and effect that the present invention realizes are:
1) successively Waste Heat Recovery is carried out using two different heat exchangers to utilize, realize to gas-cooker Waste Heat Recovery most
Bigization utilizes, and saves energy conservation environment to greatest extent,
2) structure is simple, and adjusting control is convenient, creatively only realizes exchange hot fluid medium by a triple valve
The switching between two kinds of different modes is realized in control, convenient to meet different recuperation of heat demands when in use, overcomes existing skill
The single uncontrollable defect of the Waste Heat Recovery of gas-cooker in art;
3) burner structure for using particular design is not only realized effective recycling to waste heat, while being arranged in combustion zone
Reflectance coating increases and utilizes to the maximum of the combustion heat, while developing multiple combinations supporting structure, convenient to existing gas-cooker
Transformation.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other similar attached drawings according to these attached drawings.
Fig. 1 is that waste heat recovery plant schematic diagram is adjusted in gas-cooker of the invention;
Fig. 2 is that waste recovery method flow diagram is adjusted in gas-cooker of the invention;
Fig. 3 is the burner schematic diagram that waste heat recovery plant is adjusted in gas-cooker of the invention;
Fig. 4 is the burner lid cover structure schematic diagram that waste heat recovery plant is adjusted in gas-cooker of the invention;
Fig. 5 is that the burner housing of the adjustable waste heat recovery plant of gas-cooker of the invention uses schematic diagram;
Fig. 6 is the another kind burner schematic diagram that waste heat recovery plant is adjusted in gas-cooker of the invention.
Appended drawing reference: 101- burner, 102- bracing ring, 103- air outlet slit, the outlet of 104- waste heat fluid, 105- waste heat
Fluid inlet, 201- first heat exchanger, 202- second heat exchanger, 203- water tank, 301- first heat exchanger upstream flow
Body pipeline, 303- first fluid loop pipe, 304- first heat exchanger pipe downstream fluid, 305- second heat exchanger downstream
Fluid circuit, 306- second fluid loop pipe, 307- fluid circuit general pipeline, 401- air outlet conduits, 501- air pump, 502- stream
Body replenishment pump, K1- air flow control valve, K2- three-way control valve, 2021- heat exchanger tube, 2022- cold water flow into pipe, 2023- heat
Water flow outlet pipe, 2031- low-temperature water heating effuser, 2032- high-temperature-hot-water effuser, 2033- supply pipe, 2034- water storage separator for container,
1012- inner ring platform, 1013- inclined surface, the outer ring 1014- platform, 1015- blind hole, 601- the cover, the bottom 6010- fitting area
Domain, 6012- tilt overlay area
Specific embodiment
Basic conception according to the present invention, gas-cooker waste recovery method of the invention are using two different heat exchanges
Device carries out successively Waste Heat Recovery and utilizes, and realization maximally utilizes gas-cooker Waste Heat Recovery.Gas-cooker of the invention is adjustable
Waste recovery method, comprising the following steps:
1) burner assembly is constructed, which includes the burner and bracing ring that can be integrated on gas-cooker,
Burner base is provided with air outlet slit, so as to form the combustion zone for lighting gas-air gaseous mixture, in burner along ring
Shape body interior forms the toroidal cavity for accommodating heat transferring medium fluid, is respectively arranged with the above-mentioned ring of connection in burner shell two sides
The waste heat fluid outlet of shape cavity and waste heat fluid entrance;
2) construct two different heat exchangers so that heat transferring medium fluid can pass sequentially through above-mentioned two heat exchanger or
Person only passes through first heat exchanger;
3) setting connection control piper component, the flow path of heat transferring medium fluid is controlled by a three-way control valve,
Optionally through or pass through above-mentioned second heat exchanger.
As shown in Figure 1, it includes burner assembly, heat exchanger group that waste heat recovery plant, which is adjusted, in gas-cooker of the invention
Part, water tank and connection control piper component, wherein burner assembly includes 101 He of burner that can be integrated on gas-cooker
Bracing ring 102 is provided with air outlet slit 103 in 101 bottom of burner, so as to form the combustion for lighting gas-air gaseous mixture
Area is burnt, the toroidal cavity for accommodating heat transferring medium fluid is formed inside annular body in burner 101, in 101 shell of burner
Two sides are respectively arranged with the waste heat fluid outlet 104 for connecting above-mentioned toroidal cavity and waste heat fluid entrance 105.
Heat exchanger assemblies include first heat exchanger 201 and second heat exchanger 202, wherein first heat exchanger 201
Fluid conduits upstream 301 and waste heat fluid outlet 104 be connected to, the downstream fluid 304 of first heat exchanger 201 and second
The fluid inlet of heat exchanger is connected to, the upstream end of first fluid loop pipe 303 and the downstream fluid tube of first heat exchanger 201
Road 304 connects, and forms the triplate line (one into two is logical) controlled by three-way control valve K2,303 downstream of first fluid loop pipe
Be connected to, also formed a triplate line (two into one logical) with fluid circuit general pipeline 307, first heat exchanger 201 with heat transferring medium
The vertical side of fluid flow direction is provided with air inlet duct, and air pump 501 is selectively provided on the air inlet duct
The heat transferring medium of waste heat thermal energy will be absorbed by the heat exchange action of first heat exchanger 201 with air flow control valve K1
Partial heat in fluid passes to input inlet air, so that improving the temperature of combustion air reduces thermal losses.
The downstream fluid 305 of second heat exchanger 202 is connected to second fluid loop pipe 306, first fluid circuit
Pipe 303 and 306 downstream of second fluid loop pipe are communicated on fluid circuit general pipeline 307, the downstream of fluid circuit general pipeline 307
End be connected to waste heat fluid entrance 105, thus by the heat transferring medium fluid Jing Guo heat exchange twice flow back into burner 101 into
Row recuperation of heat again.
Selectively, fluid replenishment pump 502 is additionally provided in the downstream of fluid circuit general pipeline 307.Second heat exchanger
202 are provided with water tank 203 in the side vertical with heat transferring medium fluid flow direction comprising with second heat exchanger 202
The cold water of connection flows into pipe 2022 and hot water effuser 2023, the cold water flowed into second heat exchanger 202 pass through heat exchanger tube
2021 exchange heat with heat transferring medium fluid, and the partial heat in the heat transferring medium fluid for absorbing waste heat thermal energy is passed to liquid
Body water carries out energy storage and use, realizes the effective recycling of gas-cooker waste heat.
Selectively, the water tank 203 that waste heat recovery plant is adjusted in this gas-cooker is internally provided with water storage separator for container
2034, it is arranged at the about height one third of 203 top of water tank, partly separates 203 internal chamber of water tank
For the two parts that can be connected to, middle and upper part is connected to cold water and flows into pipe 2022, and lower part is connected to hot water effuser 2023, in water tank
203 other side has been respectively communicated with low-temperature water heating effuser 2031 and high-temperature-hot-water effuser 2032, thus respectively by recycling
Hot water is effectively utilized in different occasion uses, is additionally provided with the supply pipe 2033 of supplement cold water on the top of water tank 203.
Selectively, first heat exchanger 201 is gas-liquid type heat exchanger, and second heat exchanger 202 is liquid-liquid type heat
Exchanger.
Advantage of the invention is that waste heat recovery plant is adjusted in the gas-cooker by above structure, different need may be implemented
The recuperation of heat asked is adjusted, and particularly may be divided into following two mode:
1) recuperation of heat normally utilizes mode: such to happen in gas-cooker normal work stage, heat recovery is normal.Tool
Gymnastics is made: adjusting three-way control valve K2 is the first communicating position, at this point, the downstream fluid tube of K2 connection first heat exchanger 201
Road 304 and 202 entrance of second heat exchanger prevent heat transferring medium fluid from flowing into first fluid loop pipe 303, to keep exchanging heat
Medium fluid passes sequentially through first heat exchanger 201 and second heat exchanger 202, and is changed by the conveying of fluid circuit general pipeline 307
For thermal medium fluid to waste heat fluid entrance 105, the fluid circulation that thus heat exchanging medium flow body is formed passes through two heat exchangers, complete
The heating of pairs of inlet air and the storage recycling of waste heat;
2) single heat exchange take-back model: such happen is needing to increase intake air temperature, improving combustion efficiency
When, it needs to close and the second heat exchange is recycled, the utilization to the first heat exchange recycling is increased with this.Concrete operations: threeway is adjusted
Control valve K2 is the second communicating position, at this point, the downstream fluid 304 and first fluid of K2 connection first heat exchanger 201
Loop pipe 303 prevents heat transferring medium fluid from flowing into second heat exchanger 201, and by fluid circuit general pipeline 307, delivery heat transfer is situated between
Mass flow body to waste heat fluid entrance 105, complete merely through first heat exchanger by the fluid circulation that thus heat exchanging medium flow body is formed
Heating to inlet air.
It should be noted that above-mentioned is only the description for gas-cooker being adjusted waste heat recovery plant control principle, it is specific
It can be realized by various feasible patterns in implementation, such as electronic control mode, manual operation mode etc., specific structure
It is not limited to the form showed in attached drawing, as long as the adjustable waste heat recovery plant of the gas-cooker for being that by above method process is equal
Within the scope of the disclosure of the present application.
Referring to fig. 2, specifically, waste recovery method, which is adjusted, in the gas-cooker can be used following steps:
S101: whether initial detecting safety: leaking including detection pipeline, and whether air pressure normally waits gas-cookers to operate normally
Condition whether have;
S102: ventilation igniting: completing ventilation and ignition process, realizes normal ignition combustion process;
S103: the actual demand used according to gas-cooker, manual operation or be automatically brought into operation carry out Waste Heat Recovery model selection,
It may be selected to enter step any of S201, S202;
S201: selection recuperation of heat normally utilizes mode, and adjusting three-way control valve is the first communicating position (K2=1), thus
The fluid circulation that heat exchanging medium flow body is formed passes through two heat exchangers, and the storage for completing heating and waste heat to inlet air is returned
It receives;
S202: selecting single heat exchange take-back model, and adjusting three-way control valve is the second communicating position (K2=2), thus
The fluid circulation that heat exchanging medium flow body is formed completes the heating to inlet air merely through first heat exchanger;
S104: real-time detection heat exchange medium temperature T, if T be greater than early warning temperature T1, then it represents that heat exchange medium temperature compared with
Height needs to enter step S105;
Step S105: being alarmed and cuts off combustion process.
Simultaneously in order to improve gas-cooker efficiency of combustion, the invention also discloses other aspects of gas-cooker Waste Heat Recovery, ginsengs
See Fig. 3, be the structural schematic diagram of the burner 101 of one of alternate embodiment of the present invention comprising inner ring platform 1012 and outer
The inclined surface 1013 of transition between platform 1014 is enclosed, which is arranged around the combustion zone of gas-cooker, and surface is by copper
Matter or aluminum infrared reflecting layer are made, and the energy generated when its role is to by burning is reflected into pot bottom to the maximum extent and is formed
Concentrated area is heated, heating efficiency is improved.Referring to fig. 4 with 5, show configured with copper or aluminum infrared reflecting layer
Cover structure 601 comprising inclination overlay area 6012 and bottom mating area 6010, on kind of inclination overlay area 6012 by
Coating made of copper or aluminum infrared reflecting layer, the cover structure 601 can be directly covered on burner 101, thus convenient
Transformation to the burner for gas stove of existing bloomed coating.
Referring to Fig. 6, in order to increase the heat transfer effect between gas-cooker combustion zone waste heat and heat exchanging fluid medium, can incline
1013 surrounding of skewed surface be arranged annular array blind hole 1015, blind hole 1015 can integrally casting formed, heat transferring medium will not be revealed,
The waste heat generated as a result, can be thermally contacted by entering blind hole 1015 with heat transferring medium, to increase in a limited space
Contact area between the two increases heat transfer efficiency.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
Should all it forgive within protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Subject to enclosing.