CN103307642A - Heat-integrated gas furnace system and operation method - Google Patents
Heat-integrated gas furnace system and operation method Download PDFInfo
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- CN103307642A CN103307642A CN2013102154847A CN201310215484A CN103307642A CN 103307642 A CN103307642 A CN 103307642A CN 2013102154847 A CN2013102154847 A CN 2013102154847A CN 201310215484 A CN201310215484 A CN 201310215484A CN 103307642 A CN103307642 A CN 103307642A
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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
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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Abstract
The invention relates to a heat-integrated gas furnace system and an operation method. Air enters an energy-saving furnace after passing through a fan, an air control valve, an air flowmeter and a heat exchanger; gas enters the energy-saving furnace by a gas control valve and a gas flowmeter, and the air and the gas burn after being mixed in the energy-saving furnace; high-temperature tail gas generated in the energy-saving furnace passes through the shell pass by the heat exchanger, and air finishes heat exchange in the heat exchanger after passing through the pipe shell of the heat exchanger; and a temperature control box detects the temperature in the furnace by a thermocouple mode, converts the temperature into an electric signal, controls the air flowmeter and the gas flowmeter by adjusting the air control valve and the gas control valve and finishes automatic control to the air amount and the gas amount. The process system adopts a low-temperature air and high-temperature tail gas sleeve type heat exchange technology and a temperature control system, fully utilizes the heat released by fuel and controls the heat. The heat of the high-temperature tail gas can be utilized, so that the fuel utilization ratio is increased.
Description
Technical field
The present invention relates to the gas furnace energy conserving system, specifically, it carries out hot integrated insulation recycling with the direct discharge tail gas of traditional fuel gas buring, can effectively improve the fuel thermal energy utilization rate.
Background technology
Existing civil version gas furnace is directly heating in open environment, for example: pancake stove, cooking stove that the street corner is common, heatable stoves such as the boiling stir-fry in the restaurant, not only the operator will stand the high temperature that body of heater distributes when work, and the EGT that the chimney place discharges is also very high.So direct dissipation and discharging of heat seriously reduced the utilization rate of fuel.Therefore, the combustion tail gas heat is carried out the secondary integrated utilization, to heat transfer efficiency, the reduction fuel consumption that improves the civil version gas furnace, significant.Also make a lot of researchs at domestic burners is energy-conservation both at home and abroad, obtained different effects.
200720089471.X designed a kind of multifunction efficient energy-saving stove, reached stir-fry, boil, steam purpose integrated and that carry out synchronously by increase vaporium, steam cage.201020243396.X designed the controlled stove and accessory of a kind of combustion gas, regulated displacement by electric-controlled switch.201220197408.9 designed a kind of liquefied gas energy-saving fuel gas, utilized the endothermic water tank that the unnecessary heat of burning radiation is reclaimed insulation.Above patented technology is mainly analyzed and is improved from the gas furnace structure, also mentions on technical process and reclaims preheating as far as possible, improves the utilization rate of combustion gas, has also played energy-conservation effect to a certain extent.And the present invention proposes a kind of feasible more complete hot integrated system, by Cryogenic air and high-temperature tail gas casing type heat exchanging technology and temperature control system, take full advantage of the fuel release heat and control.Concrete scheme is presented below.
Summary of the invention
The present invention proposes the integrated gas furnace system of a kind of heat, comprises heat-exchange system, combustion system and temperature control system.
Heat-exchange system comprises heat exchanger 4 and blower fan 1, and combustion system comprises energy-conservation stove 5, gas meter 6.Heat exchanger 4 tube side imports be installed in series successively blower fan 1, air shut-off valve 2 and mass air flow sensor 3, the tube side outlet directly is connected with energy-conservation stove 5 air inlet pipes, and the shell side inlet pipe directly links to each other the direct emptying of shell side outlet with energy-conservation stove 5 tail gas discharging pipes; Energy-conservation stove 5 air inlets connect successively gas control valve 7 and gas meter 6.
It is axial flow blower, air blast or air-introduced machine that described blower fan 1 can be selected.
Described gas control valve 5 can be selected anticorrosion explosion-proof ball valve or gate valve.
Described mass air flow sensor 3 and gas meter 6 can be selected the gas flowmeter of turbine flowmeter or mass flowmenter.
Described heat exchanger 4 structural outer and energy-conservation stove 5 inside configuration can be loaded insulation material, and the heat that further reduces high-temperature tail gas in the shell side dissipates.
Described heat exchanger 4 and the energy-conservation stove 5 structures structure that arranges separately or be combined into one.
Described energy-conservation stove 5, it is made of bracing frame a, exhaust pipe b, stove heart c, furnace shell d, conical pipe e, air inlet pipe stove f and combustion gas inlet pipe g; Stove heart c is fixed on conical pipe e inside, and air inlet pipe f is connected with conical pipe e bottom with combustion gas inlet pipe g, and is weldingly fixed on furnace shell d bottom.Furnace shell d can install insulation material in inside, reduces scattering and disappearing of heat.
Energy-conservation stove 5 top supporting frame a formulate according to the physical dimension of different tablewares, guarantee energy-conservation stove 5 inner sealings.
The temperature element of temperature control box 8 is installed in energy-conservation stove 5 inside or heat exchanger 4 outsides, and box body is fixed on energy-conservation stove 5 outer walls.
Temperature control system comprises temperature control box 8, constitutes an overall structure by temperature element, signal adapter, controller.Set a stove internal standard heating-up temperature, temperature element records temperature in the energy-conservation stove 5, calculating by signal conversion and controller: when recording temperature and be higher than normal temperature, reduce the aperture of air shut-off valve 2 and gas control valve 7, the input of minimizing air and combustion gas; When recording temperature and be lower than normal temperature, increase the aperture of air shut-off valve 2 and gas control valve 7, increase the input of air and combustion gas.
The temperature element thermocouple of described temperature control box 8 is fixed on energy-conservation stove 5 inside or heat exchanger 4 outsides, and box body is fixed on energy-conservation stove 5 outsides.
Air enters energy-conservation stove 5 after by blower fan 1, air shut-off valve 2, mass air flow sensor 3, heat exchanger 4; Combustion gas enters energy-conservation stove 5 by gas control valve 7, gas meter 6, and air mixes after-combustion with combustion gas in energy-conservation stove 5.The high-temperature tail gas that energy-conservation stove 5 internal combustion produce is by the shell side of heat exchanger 4, and air is finished exchange heat by the tube side of heat exchanger 4 in heat exchanger 4.Temperature control 8 detects temperature in the stove by modes such as thermocouples, and is converted into the signal of telecommunication, and by the adjusting to air shut-off valve 2 and gas control valve 7, control mass air flow sensor 3 and gas meter 6 are finished the automatic control to air capacity and gas quantity.
Advantage of the present invention has:
1. the heat of high-temperature tail gas is utilized, and improves fuel availability;
2. utilize waste heat that gas furnace is incubated, saved fuel;
3. the gas furnace Controllable Temperature is regulated intake valve, handled easily automatically.
4. can significantly reduce the use of fuel, namely reduce the requirement that cost meets national energy-saving and emission-reduction policy again.
5. this process system adopts Cryogenic air and high-temperature tail gas casing type heat exchanging technology and temperature control system, takes full advantage of the fuel release heat and controls.Improve fuel availability.
Description of drawings
Fig. 1: energy-conservation furnace apparatus sketch.
Fig. 2: the energy-conservation furnaceman sketch of planting.
Fig. 3: embodiment 2 process diagrams.
Fig. 4: embodiment 3 process diagrams.
Wherein: a-bracing frame, b-exhaust pipe, the c-stove heart, d-furnace shell, e-conical pipe, f-air inlet pipe, g-combustion gas inlet pipe, 1-blower fan, 2-air shut-off valve, 3-mass air flow sensor, 4-heat exchanger, 5-energy-conservation stove, 6-gas meter, 7-gas control valve, 8-temperature control box, section-insulation material.
The specific embodiment
By reference to the accompanying drawings patent of the present invention is further specified:
As shown in the figure: the gas furnace process system that heat of the present invention is integrated, it is made up of heat-exchange system, combustion system and temperature control system.It is characterized in that combustion system: gas meter 6 and gas control valve 7 are installed, by gas control valve 7 control gas meters 6 readings on the energy-conservation stove 5 combustion gas inlet pipes; Energy-conservation stove 5 air inlet pipes directly link to each other with the outlet of heat exchanger 4 tube sides, and the waste gas comb directly links to each other with heat exchanger 4 shell side imports.The hot-air of discharging from heat exchanger tube 4 tube sides outlets and the combustion gas through gas control valve 7 and gas meter 6, mixed combustion in energy-conservation stove 5, waste gas enters in the shell side of heat exchanger 4 by the waste gas comb.Heat-exchange system: blower fan 1, air shut-off valve 2 and mass air flow sensor 3 successively are installed in series on the heat exchanger 4 tube side inlet pipes, the tube side comb directly links to each other with energy-conservation stove 5 air inlet pipes, the shell side inlet pipe directly is connected with energy-conservation stove 5 exhaust emission tubes, and the shell side comb directly links to each other with atmosphere.Air is successively by entering the Tube Sheet of Heat Exchanger journey after blower fan 1, air shut-off valve 2 and the mass air flow sensor 3, high-temperature tail gas directly enters heat exchanger tube 4 shell sides from energy-conservation stove 5 exhaust emission tubes, and high-temperature tail gas and cold air adverse current take place in heat exchanger 4 or and spread heat and finish exchange heat.Temperature control system: energy-conservation stove 5 inwalls are drawn a thermocouple measurement line, slotted line is the signal of telecommunication by signal adapter with temperature inversion, by the controller computational analysis, again signal is converted to the aperture of power adjustment air shut-off valve 2 and gas control valve 7, influence mass air flow sensor 3 and gas meter 6, finish the automatic control to air capacity and gas quantity.
Heat exchanger tube in the heat exchanger 4 can be selected the higher copper pipe of material thermal conductivity factor, stainless steel tube etc., and the heat exchanger tube spread pattern is not limit; Insulation material can be selected heat-preservation cotton, ceramic fibre etc.
Below in conjunction with concrete size example will the present invention will be described better, but can therefore not limit its application.
Embodiment 1:
As shown in Figure 2, the energy-conservation stove of simple and easy repacking that energy-conservation stove 5 is a built-in Domestic stove of incubation chamber, its tail gas comb directly is connected with heat exchanger 4 shell side pipes, and gas control valve 7 and gas turbine flowmeter 6 are installed by combustion gas inlet pipe place.In heat exchanger 4 tube side import departments frequency conversion air blast 1, air shut-off valve 2 and an air turbine flowmeter 3 are installed, the tube side outlet directly links to each other with energy-conservation stove air intlet, and the shell side outlet directly is communicated with atmosphere.Thermocouple element is installed on energy-conservation stove 5 inwalls, draws the back and connect temperature control box, regulate air shut-off valve 2 and gas control valve 7 control air stream turbine flowmeter 3 and gas turbine flowmeters 6 by the signal conversion, and then control empty combustion amount.Wherein, heat exchanger 4 is enclosed within the incubation chamber, and heat exchanger tube is copper pipe.
This device boils stewed stove for one in the catering industry hotel, and fuel is bottled gas.Market survey shows, the hotel between meal in 5 hours working time of period, traditional cooking stove gas consumption average out to 50m3; After increasing above-mentioned technology and reequiping, can make heating and temperature control continue to endure stewed at 80 degree.Amount of consumed gas is less than 30m3, and energy-saving efficiency is close to 50%.
Embodiment 2:
New kind of gas burners technology as shown in Figure 3, energy-conservation stove 5 and heat exchanger 4 are combined into one, energy-conservation stove 5 is portion structurally, heat exchanger 4 is 4 heat exchanger tubes, 1 coaxial circles pipe box is in the outside of heat exchanger tube, directly be assembled in the substructure of energy-conservation stove 4, heat exchanger tube is stainless steel tube, and heat-preservation cotton is filled in the overall structure gap.Frequency conversion axial flow blower 1, air shut-off valve 2 and air flow meter 3 are installed by heat exchanger 4 air inlet pipe places, gas control valve 7 and combustion gas quality flowmeter 6 are installed by energy-conservation stove 5 combustion gas inlet pipe places, in energy-conservation stove, feed combustion gas and air respectively, high-temperature tail gas is finished heat exchange between sleeve pipe by the coaxial circles tube drainage after the mixed combustion.Thermocouple element is installed in the tail gas comb place of energy-conservation stove 5 inwalls and heat exchanger 4, by the conversion and control of the signal of telecommunication, regulates air shut-off valve 2 and gas control valve 7 air stream turbine flowmeter 3 processed and gas turbine flowmeters 6, and then controls empty combustion amount.
This device is used for the common cooker-spicy soup heating furnace of catering industry, and fuel is the common bottled gas in market.Market survey shows that an increased turnover stand combustion furnace working time is 14 hours/day, and the amount of consumed gas of traditional gas range device is 15kg/ days; After using above-mentioned new device, amount of consumed gas was less than 10kg/ days, and energy-saving efficiency is higher than 30%.
Embodiment 3:
The new kind of gas burners novel process as shown in Figure 4, energy-conservation stove 5 and heat exchanger 4 are combined into one, energy-conservation stove 5 is portion structurally, heat exchanger 4 is the heat exchanger tube of 4 bendings, is nested in the heat insulating block of an integral body, heat exchanger tube is copper pipe.Frequency conversion axial flow blower 1, air shut-off valve 2 and air turbine flowmeter 3 are installed by heat exchanger 4 air inlet pipe places, gas control valve 7 and gas turbine flowmeter 6 are installed by energy-conservation stove 5 combustion gas inlet pipe places, in energy-conservation stove, feed combustion gas and air respectively, high-temperature tail gas is finished the heat exchange between heat insulating block and the heat exchanger tube by the heat insulating block of heat exchanger 4 after the mixed combustion.Thermocouple element is installed in energy-conservation stove 5 inwalls, by the conversion and control of the signal of telecommunication, regulates air shut-off valve 2 and gas control valve 7 air stream turbine flowmeter 3 processed and gas turbine flowmeters 6, and then controls empty combustion amount.
This device is used for the family expenses stove of cooking, and fuel is natural gas.Market survey shows, family expenses stove general work time of cooking is 3 hours/days.The amount of consumed gas of the furnace apparatus of cooking commonly used is 40m
3/ month, use above-mentioned new device after, amount of consumed gas is less than 30m
3/ month, energy-saving efficiency is higher than 25%; If domestic burners fuel is bottled gas, its consumption is 42m
3/ month, use above-mentioned new device after, amount of consumed gas is less than 25m
3/ month, energy-saving efficiency is higher than 40%.
The purpose of above embodiment is to illustrate better the present invention; difference according to different application, size, material etc.; the parameters of this device (material, size, process details, installation method etc.) can have corresponding variation; what person skilled was done on its basis substitutes or conversion, within the present invention's protection.
Claims (10)
1. the gas furnace system that heat is integrated comprises heat-exchange system and combustion system and temperature control system; It is characterized in that heat-exchange system comprises heat exchanger (4), blower fan (1); Combustion system comprises energy-conservation stove (5), gas meter (6); Heat exchanger (4) tube side import be installed in series successively blower fan (1), air shut-off valve (2) and mass air flow sensor (3), the tube side outlet directly is connected with energy-conservation stove (5) air inlet pipe, the shell side inlet pipe directly links to each other the direct emptying of shell side outlet with energy-conservation stove (5) tail gas discharging pipe; Energy-conservation stove (5) air inlet connect successively gas control valve (7) and gas meter (6).
2. the system as claimed in claim 1 is characterized in that blower fan (1) is axial flow blower, air blast or air-introduced machine.
3. the system as claimed in claim 1 is characterized in that gas control valve (5) is anticorrosion explosion-proof ball valve or gate valve.
4. the system as claimed in claim 1 is characterized in that mass air flow sensor (3) and gas meter (6) are the gas flowmeters of turbine flowmeter or mass flowmenter.
5. the system as claimed in claim 1 is characterized in that portion or outer setting have heat-insulation layer to heat exchanger (4) within it.
6. the system as claimed in claim 1 is characterized in that heat exchanger (4) and energy-conservation stove (5) the structure structure that arranges separately or be combined into one.
7. the system as claimed in claim 1 is characterized in that described energy-conservation stove (5), and it is made of bracing frame (a), exhaust pipe (b), the stove heart (c), furnace shell (d), conical pipe (e), air inlet pipe stove (f) and combustion gas inlet pipe (g); The stove heart (c) is fixed on conical pipe (e) inside, and air inlet pipe (f) is connected with conical pipe (e) bottom with combustion gas inlet pipe (g), and is weldingly fixed on furnace shell (d) bottom.
8. described system as claimed in claim 7 is characterized in that energy-conservation stove (5) top supporting frame (a) according to the physical dimension formulation of different tablewares, guarantees energy-conservation stove (5) inner sealing.
9. the system as claimed in claim 1 is characterized in that the temperature element thermocouple of described temperature control box (8) is fixed on energy-conservation stove (5) inside or heat exchanger (4) outside, and box body is fixed on energy-conservation stove (5) outside.
10. the method for operating of the hot integrated gas furnace system of claim 1 is characterized in that air passes through to enter energy-conservation stove (5) behind blower fan (1), air shut-off valve (2), mass air flow sensor (3), the heat exchanger (4); Combustion gas enters energy-conservation stove (5) by gas control valve (7), gas meter (6), and air mixes after-combustion with combustion gas in energy-conservation stove (5); The high-temperature tail gas that energy-conservation stove (5) internal combustion produces is by the shell side of heat exchanger (4), and air is finished exchange heat by the tube side of heat exchanger (4) in heat exchanger (4); Temperature control (8) detects temperature in the stove by the mode of thermocouple, and be converted into the signal of telecommunication, by the adjusting to air shut-off valve (2) and gas control valve (7), control mass air flow sensor (3) and gas meter (6) are finished the automatic control to air capacity and gas quantity.
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| CN2013102154847A CN103307642A (en) | 2013-05-31 | 2013-05-31 | Heat-integrated gas furnace system and operation method |
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| CN2013102154847A CN103307642A (en) | 2013-05-31 | 2013-05-31 | Heat-integrated gas furnace system and operation method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051836A (en) * | 2016-06-21 | 2016-10-26 | 任毓 | Remote monitoring method of waste heat conversion equipment |
| CN106123057A (en) * | 2016-06-21 | 2016-11-16 | 任毓 | Used heat converts control method |
| CN107131519A (en) * | 2017-04-19 | 2017-09-05 | 安德森热能科技（苏州）有限责任公司 | A kind of combusted proportion Optimal Control System and method |
| CN110500423A (en) * | 2019-09-16 | 2019-11-26 | 俞柔冰 | A kind of linkage to the burner of gas stove conveying air and combustion gas |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051836A (en) * | 2016-06-21 | 2016-10-26 | 任毓 | Remote monitoring method of waste heat conversion equipment |
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| CN110500423A (en) * | 2019-09-16 | 2019-11-26 | 俞柔冰 | A kind of linkage to the burner of gas stove conveying air and combustion gas |
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Application publication date: 20130918 |