CN201866788U - Direct exchange type heat exchanger - Google Patents
Direct exchange type heat exchanger Download PDFInfo
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- CN201866788U CN201866788U CN2010206297080U CN201020629708U CN201866788U CN 201866788 U CN201866788 U CN 201866788U CN 2010206297080 U CN2010206297080 U CN 2010206297080U CN 201020629708 U CN201020629708 U CN 201020629708U CN 201866788 U CN201866788 U CN 201866788U
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- reversal valve
- interface
- heat exchange
- exchange body
- temperature reversal
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
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Abstract
The utility model relates to a direct exchange type heat exchanger, comprising a high-temperature reversing valve, a low-temperature reversing valve, a heat exchange body and all connecting pipelines, wherein the high-temperature reversing valve is provided with a heating furnace interface, a combustor interface, an interface I of the high-temperature reversing valve and an interface II of the high-temperature reversing valve; the low-temperature reversing valve is provided with a blower interface, a draft fan interface, an interface I of the low-temperature reversing valve and an interface II of the low-temperature reversing valve; the high-temperature reversing valve and the low-temperature reversing valve are respectively provided with two reversing positions which are respective 0 degree and 90 degrees, wherein the 0-degree reversing position of the high-temperature reversing valve and the 90-degree reversing position of the low-temperature reversing valve form a group of flue gas flowing direction channel and combustion-supporting air flowing direction channel; and a 90-degree reversing position of the high-temperature reversing valve and a 0-degree reversing position of the low-temperature reversing valve form another group of flue gas flowing direction channel and combustion-supporting air flowing direction channel. In the direct exchange type heat exchanger, the heat-exchange area is large, the heat-exchange efficiency is high, the cost is lower, the heat load distribution of furnaces and kilns is greatly improved, and the purposes of optimum heating and heat transferring are achieved.
Description
Technical field
The utility model relates to the heat exchanger on thermal technology's combustion apparatus, refers in particular to a kind of direct switch type heat exchanger.
Background technology
Energy-saving and emission-reduction are important topics of world today development, to human existence with social development has and important meaning.Fruitful work is all being carried out for energy-saving and emission-reduction in countries in the world, and at the exploration and practice that constantly carries out system and technology.Energy-conserving and emission-cutting technology innovation and industry development meet national industry development policy, are that country encourages, and have development prospect preferably.
Industrial furnace is a thermal energy consumption equipment, is the field of social energy resource consumption maximum.Industrial furnace will directly determine the effect of energy-saving and emission-reduction to the height of utilization efficiency of heat energy.According to the difference of thermal source, industrial furnace can be divided into Fuel Furnace and electric furnace again.The direct electrification energy of electric furnace, general load is less, usually use the occasion of having relatively high expectations in environment and control, its energy utilization rate is higher relatively, but heat energy total load accounting in industrial furnace of electric furnace is less, that is to say, the thermal source of industrial furnace remains based on fuel (comprising gas, liquid and solid fuel), accounting for the very big part of social energy resource consumption, is the main battlefields of energy-saving and emission-reduction, also is energy-saving and cost-reducing field with the largest potentiality.
Fuel Furnace is exactly to utilize fuel combustion to make the stove of thermal source, fuel produces a large amount of heat energy in the Fuel Furnace combustion process, wherein a part of heat energy is absorbed (live part by material in stove and the stove, generally be lower than fuel combustion produce heat energy 1/3rd), another part then is by the flue gas that produces in the fuel combustion process discharge out of the furnace (invalid part accounts for the major part that fuel combustion produces heat energy).With regard to Fuel Furnace, the height of fume afterheat utilization ratio will determine the height of the Fuel Furnace thermal efficiency, that is to say, the thermal efficiency key of Fuel Furnace is seen the height of waste heat (actual is high-temperature flue gas) utilization ratio, UTILIZATION OF VESIDUAL HEAT IN efficient height, the Fuel Furnace thermal efficiency is just high, otherwise UTILIZATION OF VESIDUAL HEAT IN efficient is then low.。
In order to effectively utilize fume afterheat, use at present the most extensive and one of effective technical means is exactly to adopt air preheater to come warm-up combustion-supporting air, improve the temperature of fuel combustion flame by warm-up combustion-supporting air, thereby cut down the consumption of energy, improve the thermal efficiency of Fuel Furnace.At present, the most widely used air preheater is on the market: pipe heat exchanger.There is following deficiency in pipe heat exchanger on the market: 1. the air preheater heat exchange area is less, and heat exchange efficiency is not high; 2. serviceability temperature and being restricted service life when handling big flow high-temperature flue gas (more than 1000 ℃); 3. preheater occupies too much site space.
It is exactly heat-storage type burner that another kind effectively utilizes the mode of fume afterheat.Heat-storage type burner has a lot of outstanding advantages, and is big as heat exchange area, heat exchange efficiency is high, and several unrestricted to high-temperature flue-gas.Though heat-storage type burner has a lot of outstanding advantages, but a little less than also having significantly, that is exactly: the smoke evacuation of heat-storage type burner and combustion air enter and are same passage, and require burner to occur in pairs, two burners hocket and burn and smoke evacuation during work, therefore, the installation site of heat-storage type burner just is greatly limited, and is unfavorable for the even distribution of the structural design and the thermic load of stove.
Summary of the invention
The purpose of this utility model is improved and is innovated at the shortcoming that exists in the background technology and problem, and a kind of direct switch type heat exchanger that has remarkable advantages with respect to heat-storage type burner and air preheater is provided.
The utility model structure is a kind of to be arranged on heat exchanger on the discharge flue of heating furnace, comprises high temperature reversal valve, low temperature reversal valve, heat exchange body and each connecting pipe, wherein:
The high temperature reversal valve is provided with heating furnace interface, burner interface, high temperature reversal valve heat exchange body one interface and high temperature reversal valve heat exchange body two interfaces, and the low temperature reversal valve is provided with air blast interface, air-introduced machine interface, low temperature reversal valve heat exchange body one interface and low temperature reversal valve heat exchange body two interfaces;
Described heating furnace interface connects the exhaust opening of heating furnace, the burner interface connects the burner of heating furnace, the air blast interface connects air blast, the air-introduced machine interface connects air-introduced machine, high temperature reversal valve heat exchange body one interface is communicated with low temperature reversal valve heat exchange body one interface and is provided with heat exchange body one between the two, and high temperature reversal valve heat exchange body two interfaces are communicated with low temperature reversal valve heat exchange body two interfaces and are provided with heat exchange body two between the two;
Described high temperature reversal valve and low temperature reversal valve are equipped with 0 degree and two commutation positions of 90 degree, wherein 90 degree commutation positions of 0 of high temperature reversal valve degree commutation position and low temperature reversal valve form one group of flue gas flow direction passage and combustion air flows to passage, and the 90 degree commutation positions and 0 of the low temperature reversal valve of high temperature reversal valve spent commutation position and formed another and organize flue gas flow direction passage and combustion air flows to passage.
Advantage of the present utility model and beneficial effect:
1, the utility model heat exchange area is big, the heat exchange efficiency height: directly the switch type heat exchanger adopts heat storage (honeycomb ceramics or heat-storing sphere) as the heat exchange medium, and heat exchange area is big, and (the honeycomb ceramics specific area can reach 1400m
2/ m
3), the heat exchange efficiency height can be reduced to exhaust gas temperature below 150 ℃.
2, the utility model can the big flue gas of treatment temperature high flow capacity: directly the switch type heat exchanger is to the temperature (the highest flue-gas temperature can reach 1650 ℃) of flue gas with flue gas flow without limits;
3, the utility model use cost is lower: directly the switch type heat exchanger only needs the replacing heat storage can continue to use after using the prescribed number of years, and it is with the obvious advantage that this puts relative pipe heat exchanger;
4, smoke inlet of the present utility model (is exactly the exhaust opening of heating furnace for heating furnace) and the outlet of the combustion air of preheating (is exactly the combustion-supporting unlatching inlet of burner for heating furnace) can be carried out choose reasonable according to the structure of stove, avoided the necessary relatively-stationary drawback in heat-storage type burner suction mouth position, be very beneficial for the structural design of stove, can improve the heat load distribution of stove greatly, reach the purpose that best heating is conducted heat.
Description of drawings
Fig. 1 is the utility model high temperature reversal valve 0 degree and low temperature reversal valve 90 degree structural representations.
Fig. 2 is the utility model high temperature reversal valve 90 degree and low temperature reversal valve 0 degree structural representation.
Fig. 3 is one of the utility model and heating furnace work view.
Fig. 4 is two of the utility model and a heating furnace work view.
The specific embodiment
By accompanying drawing 1 to 4 as can be known, the utility model is arranged on the discharge flue of heating furnace 21, comprises high temperature reversal valve 1, low temperature reversal valve 8, heat exchange body and each connecting pipe, wherein:
High temperature reversal valve 1 is provided with heating furnace interface A, burner interface B, high temperature reversal valve heat exchange body one interface C and high temperature reversal valve heat exchange body two interface D, and low temperature reversal valve 8 is provided with air blast interface A1, air-introduced machine interface B1, low temperature reversal valve heat exchange body one interface C1 and low temperature reversal valve heat exchange body two interface D1;
Described heating furnace interface A connects the exhaust opening 9 of heating furnace 21, burner interface B connects the burner 20 of heating furnace 21, air blast interface A1 connects air blast 16, air-introduced machine interface B1 connects air-introduced machine 15, high temperature reversal valve heat exchange body one interface C is communicated with low temperature reversal valve heat exchange body one interface C1 and is provided with heat exchange body 1 between the two, and high temperature reversal valve heat exchange body two interface D are communicated with low temperature reversal valve heat exchange body two interface D1 and are provided with heat exchange body 25 between the two;
Described high temperature reversal valve 1 and low temperature reversal valve 8 are equipped with 0 degree and two commutation positions of 90 degree, wherein 90 degree commutation positions of 0 of high temperature reversal valve 1 degree commutation position and low temperature reversal valve 8 form one group of flue gas flow direction passage and combustion air flows to passage, and the 90 degree commutation positions and 0 of the low temperature reversal valve 8 of high temperature reversal valve 1 spent commutation position and formed another and organize flue gas flow direction passage and combustion air flows to passage.
Structural principle of the present utility model:
The utility model is made up of major function portion cover and secondary function portion cover.Major function portion cover is meant: requisite portion's cover of doing key effect on the heat exchanger, lack these covers, and heat exchanger can't be realized normal heat exchange function.Secondary function portion cover is meant: be not requisite cover on the heat exchanger, for example, the structure of reversal valve or heat exchange body changed, the tube connector between heat exchange body and the low temperature reversal valve will become not essential so.Following mask body is listed the ownership of each cover of direct switch type heat exchanger.
Directly the switch type heat exchanger is overlapped by major function portion: high temperature reversal valve 1, its four interfaces are respectively: heating furnace interface A, burner interface B, high temperature reversal valve heat exchange body one interface C and high temperature reversal valve heat exchange body two interface D.Low temperature reversal valve 8, its four interfaces are respectively: air blast interface A1, air-introduced machine interface B1, low temperature reversal valve heat exchange body one interface C1 and low temperature reversal valve heat exchange body two interface D1.Heat exchange body 1, heat exchange body 25.
Directly switch type heat exchanger secondary function portion overlaps: high temperature reversal valve heat exchange body one interface C is connected changeover portion 2 with heat exchange body 1; High temperature reversal valve heat exchange body two interface D are connected changeover portion 3 with heat exchange body 25; Heat exchange body 1 and low temperature reversal valve 8 tube connectors 6, heat exchange body 25 and low temperature reversal valve 8 tube connectors 7.
Operation principle of the present utility model: the one, combustion air before burning is heated, improve the ignition temperature of combustion air; The 2nd, combustion gas before burning is heated, improve the ignition temperature of combustion gas.Specific as follows:
Every direct switch type heat exchanger has two cover reversal valves, is respectively high temperature reversal valve 1 and low temperature reversal valve 8, and every cover reversal valve has two station states again, is respectively: 0 ° of commutation position and 90 ° of commutation positions.Directly the accumulation of heat of switch type heat exchanger and heat release go round and begin again to switch with speed and same frequency simultaneously by high temperature reversal valve and low temperature reversal valve and realize.Directly the fluid in the switch type heat exchanger also divides two parts, a part is the flue gas fluid, another part is the combustion air fluid, these two kinds of fluids constantly switch with certain and identical frequency by two cover reversal valves realizes two kinds of fluids alternately flowing in direct switch type heat exchanger, thereby realize the heat release of high-temperature flue gas and the heat absorption of low temperature combustion air, and can guarantee that high-temperature flue gas entry and combustion air outlet are in the fixed position on the high temperature reversal valve of direct switch type heat exchanger.Directly switch type heat exchanger heat transfer process is exactly the process of the continuous conversion of reversal valve station of two cover reversal valves, and detailed process and direction of flow are as follows:
1, when high temperature reversal valve 1 be 0 degree and low temperature reversal valve 8 is 90 degree during commutation positions:
When high temperature reversal valve 1 is in 0 ° of commutation position, see Fig. 1, the heat engineering state of heat exchange body is: one 4 accumulation of heats of heat exchange body, 25 heat releases of heat exchange body.It is as follows that its flue gas and combustion air flow to situation:
Flue gas flow direction: draw between suction high-temperature flue gas → high temperature reversal valve and the heating furnace tube connector 10 → high temperature reversal valve 1 → changeover portion 2 → heat exchange body one 4 → tube connector, 6 → low temperature reversal valve 8 → air-introduced machine and low temperature reversal valve tube connector 12 → air-introduced machine control valve 13 → air-introduced machine 15 → smoke exhaust pipe 17 rows to assigned address from heating furnace 21 exhaust openings 9.In flue gas is flowed through process, flow through heat exchange body one 4 o'clock of high-temperature flue gas, a large amount of thermal energy transfer and thermal energy exchange have been carried out between high-temperature flue gas and the low-temperature heat exchange body, the result of this transmission and exchange is, most heat energy of high-temperature flue gas have all passed to heat exchange body one, the temperature of heat exchange body one progressively has been elevated to very high temperature, and high-temperature flue gas has been reduced to very low temperature after through heat exchange body one.
Meanwhile, another road fluid, flow in combustion air another paths in heat exchanger, its flow direction is: combustion air with pressure → combustion air control valve 14 → air blast that air blast 16 produces and low temperature reversal valve tube connector 11 → low temperature reversal valve 8 → heat exchange body 25 are with low temperature reversal valve tube connector 7 → heat exchange body 25 → changeover portion, 3 → high temperature reversal valve 1 → high temperature reversal valve and burner tube connector 18 → burner control valve 19 → entering burner 20 burns.In combustion-supporting air flow in process, flow through heat exchange body 25 o'clock of low temperature combustion air, a large amount of thermal energy transfer and thermal energy exchange have been carried out between the heat exchange body 25 of low temperature combustion air and high temperature, the result of this transmission and exchange is, the heat exchange body two heat storages overwhelming majority heat energy of high temperature has all passed to the low temperature combustion air, the temperature of heat exchange body two progressively has been reduced to very low temperature, and the low temperature combustion air then has been heated to very high temperature by heat exchange body two.In fact the process of this road heat exchange is exactly the process that the heat exchange body is given the thermal energy transfer of its savings combustion air.Be reduced to after very the heat exchange body of low temperature enters next process by the low temperature combustion air, heat exchange body two will become accumulation of heat by heat release.
2, when high temperature reversal valve 1 be 90 degree and low temperature reversal valve 8 is 0 degree during commutation position:
High temperature reversal valve 1 is after 0 ° of commutation position work half period, heat exchange body 1 has fully absorbed the waste heat of high-temperature flue gas and will oneself be heated to higher temperature, simultaneously, heat exchange body 25 has carried out sufficient heat release and has been reduced to very low temperature under the effect of low temperature combustion air, afterwards, high temperature reversal valve and low temperature reversal valve commutate under the driving of changement with speed and same frequency simultaneously, after commutation was finished, the station state of reversal valve had become 90 ° of commutation positions by 0 ° of commutation position.After reversal valve is shifted to 90 ° of commutation positions, the flow direction of flue gas and combustion air changes in the heat exchanger, and like this, directly the heat exchange state of switch type heat exchanger also just changes, also promptly: heat exchange body 1 becomes heat release by accumulation of heat, and heat exchange body 25 becomes accumulation of heat by heat release.When directly switch type heat exchanger reversal valve is in 90 ° of commutation positions, see Fig. 2, it is as follows that its flue gas and combustion air flow to situation:
Flue gas flow direction: draw suction high-temperature flue gas → high temperature reversal valve from heating furnace exhaust opening 9 and be connected smoke pipe 12 → air-introduced machine control valve 13 → air-introduced machine 15 → smoke exhaust pipe 17 rows with the low temperature reversal valve to assigned address with heating furnace tube connector 10 → high temperature reversal valve 1 → changeover portion 3 → heat exchange body 25 → heat exchange body two and low temperature reversal valve tube connector 7 → low temperature reversal valve 8 → air-introduced machine.In flue gas is flowed through process, flow through heat exchange body 25 o'clock of high-temperature flue gas, a large amount of thermal energy transfer and thermal energy exchange have been carried out between high-temperature flue gas and the low-temperature heat exchange body, the result of this transmission and exchange is, most heat energy of high-temperature flue gas have all passed to heat exchange body two, the temperature of heat exchange body two progressively has been elevated to very high temperature, and high-temperature flue gas then has been reduced to very low temperature.
Meanwhile, another road fluid, flow in combustion air another paths in heat exchanger, combustion air flows to and is: combustion air with pressure → combustion air control valve 14 → air blast that air blast 16 produces and low temperature reversal valve tube connector 11 → low temperature reversal valve 8 → heat exchange body one are with low temperature reversal valve tube connector 6 → heat exchange body one 4 → changeover portion, 2 → high temperature reversal valve 1 → high temperature reversal valve and burner tube connector 18 → burner control valve 19 → entering burner 20 burns.In combustion-supporting air flow in process, flow through heat exchange body one 4 o'clock of low temperature combustion air, a large amount of thermal energy transfer and thermal energy exchange have been carried out between low temperature combustion air and the heat exchange body 1, the result of this transmission and exchange is, most heat energy of heat exchange body 1 have all passed to the low temperature combustion air, heat exchange body 1 has been reduced to very low temperature, and the low temperature combustion air then has been elevated to very high temperature.
3, reversal valve is after 90 ° of commutation position work half period, high temperature reversal valve and low temperature reversal valve are at the same time with again the valve position of heat exchanger being transformed into 0 ° of commutation position under the driving of fast same frequency changement, to this moment, heat exchanger has promptly been finished a heat-exchange periodic.The directly switch type heat exchanger work of going round and beginning again that comes to this.
Additional embodiment on the utility model basis during practical application:
Change the utility model major function portion cover in the practical application; as high temperature reversal valve 1, low temperature reversal valve 8, heat exchange body 1, heat exchange body 25; overlap with secondary function portion: one of changeover portion 2,3, tube connector 6,7 or several or whole profile and structures; but the function of essence does not change, and still belongs to the scope of the utility model protection.The utility model major function portion cover is constant; increase as increasing tube connector etc. between this patent heat exchange body and the high temperature reversal valve; or reduce and to cancel between heat exchange body and low temperature reversal valve non-major function such as tube connector portion by the structure that changes the heat exchange body and overlap; but the substantial function of heat exchanger does not change, and still belongs to the utility model protection domain.Change interface orientation such as the high temperature reversal valve A and the B interface exchange etc. of reversal valve, but the substantial function of heat exchanger changes not, also belong to the utility model protection domain.
Embodiment described in the utility model only is the description that preferred implementation of the present utility model is carried out; be not that the utility model design and scope are limited; under the prerequisite that does not break away from the utility model design philosophy; engineers and technicians make the technical solution of the utility model in this area various modification and improvement; all should fall into protection domain of the present utility model; the technology contents that the utility model is asked for protection all is documented in claims.
Claims (2)
1. a direct switch type heat exchanger is arranged on the discharge flue of heating furnace (21), it is characterized in that comprising high temperature reversal valve (1), low temperature reversal valve (8), heat exchange body and each connecting pipe, wherein:
High temperature reversal valve (1) is provided with heating furnace interface (A), burner interface (B), high temperature reversal valve heat exchange body one interface (C) and high temperature reversal valve heat exchange body two interfaces (D), and low temperature reversal valve (8) is provided with air blast interface (A1), air-introduced machine interface (B1), low temperature reversal valve heat exchange body one interface (C1) and low temperature reversal valve heat exchange body two interfaces (D1);
Described heating furnace interface (A) connects the exhaust opening (9) of heating furnace (21), burner interface (B) connects the burner (20) of heating furnace (21), air blast interface (A1) connects air blast (16), air-introduced machine interface (B1) connects air-introduced machine (15), high temperature reversal valve heat exchange body one interface (C) is communicated with low temperature reversal valve heat exchange body one interface (C1) and is provided with heat exchange body one (4) between the two, and high temperature reversal valve heat exchange body two interfaces (D) are communicated with low temperature reversal valve heat exchange body two interfaces (D1) and are provided with heat exchange body two (5) between the two;
Described high temperature reversal valve (1) and low temperature reversal valve (8) are equipped with 0 degree and two commutation positions of 90 degree, wherein 90 degree commutation positions of 0 of high temperature reversal valve (1) degree commutation position and low temperature reversal valve (8) form one group of flue gas flow direction passage and combustion air flows to passage, and the 90 degree commutation positions and 0 of the low temperature reversal valve (8) of high temperature reversal valve (1) spent commutation position and formed another and organize flue gas flow direction passage and combustion air flows to passage.
2. direct switch type heat exchanger according to claim 1 is characterized in that between the described each several part changeover portion being set, and perhaps tube connector connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206297080U CN201866788U (en) | 2010-11-29 | 2010-11-29 | Direct exchange type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206297080U CN201866788U (en) | 2010-11-29 | 2010-11-29 | Direct exchange type heat exchanger |
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| Publication Number | Publication Date |
|---|---|
| CN201866788U true CN201866788U (en) | 2011-06-15 |
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ID=44137942
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206297080U Expired - Fee Related CN201866788U (en) | 2010-11-29 | 2010-11-29 | Direct exchange type heat exchanger |
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| CN (1) | CN201866788U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984290A (en) * | 2010-11-29 | 2011-03-09 | 岳阳远大热能设备有限公司 | Direct exchange type heat exchanger |
| CN103471410A (en) * | 2013-09-17 | 2013-12-25 | 李�杰 | Residual heat recycling method and system for fuel heating furnace |
| CN105066167A (en) * | 2015-08-14 | 2015-11-18 | 闻喜县远华冶金材料有限公司 | Double four-way commutator linkage device and application in field of thermal engineering |
| TWI640737B (en) * | 2017-11-22 | 2018-11-11 | 財團法人金屬工業研究發展中心 | Structure of regenerative combustion furnace body |
| TWI676770B (en) * | 2017-11-13 | 2019-11-11 | 財團法人金屬工業研究發展中心 | Regenerative burner with cyclone device |
-
2010
- 2010-11-29 CN CN2010206297080U patent/CN201866788U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984290A (en) * | 2010-11-29 | 2011-03-09 | 岳阳远大热能设备有限公司 | Direct exchange type heat exchanger |
| CN103471410A (en) * | 2013-09-17 | 2013-12-25 | 李�杰 | Residual heat recycling method and system for fuel heating furnace |
| CN103471410B (en) * | 2013-09-17 | 2015-11-18 | 李�杰 | A kind of fuel heating furnace waste heat recycle method and system |
| CN105066167A (en) * | 2015-08-14 | 2015-11-18 | 闻喜县远华冶金材料有限公司 | Double four-way commutator linkage device and application in field of thermal engineering |
| TWI676770B (en) * | 2017-11-13 | 2019-11-11 | 財團法人金屬工業研究發展中心 | Regenerative burner with cyclone device |
| TWI640737B (en) * | 2017-11-22 | 2018-11-11 | 財團法人金屬工業研究發展中心 | Structure of regenerative combustion furnace body |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110615 Termination date: 20161129 |
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| CF01 | Termination of patent right due to non-payment of annual fee |