CN205372701U - Waste heat of boiler flue gas circulation heat supply system - Google Patents
Waste heat of boiler flue gas circulation heat supply system Download PDFInfo
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- CN205372701U CN205372701U CN201620188902.7U CN201620188902U CN205372701U CN 205372701 U CN205372701 U CN 205372701U CN 201620188902 U CN201620188902 U CN 201620188902U CN 205372701 U CN205372701 U CN 205372701U
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Abstract
The utility model relates to a waste heat of boiler flue gas circulation heat supply system, this heating system of its characterized in that includes admission line, air -blower, dust collector, waste heat of boiler flue gas heating cabinet, the pipeline of giving vent to anger, cold water conduit, chimney, drying device, hot -water circulation water back, hot -water tank, hot water pipeline, catalysis heating device and outlet conduit, be equipped with the catalyst in the air -blower, the admission line is connected to the inlet end of air -blower, and the end of giving vent to anger is connected with dust collector's one end, be equipped with bent shape flue gas water back in the waste heat of boiler flue gas heating cabinet, the one end of bent shape flue gas water back is connected with dust collector's the other end, and the other end of bent shape flue gas water back is connected with the one end of the pipeline of giving vent to anger, the water inlet of waste heat of boiler flue gas heating cabinet is connected with cold water conduit's one end, and the delivery port is connected with outlet conduit's one end, be equipped with the catalyst container in the catalysis heating device, and in catalysis heating device, it there is the hot -water circulation water back to surround on the surface of catalyst container.
Description
Technical field
This utility model belongs to heating system technical field, particularly relates to residual heat from boiler fume circulating heat supply system.
Background technology
The two of thermal power plant are big, and main loss is cold source energy and heat loss due to exhaust gas respectively.Cold source energy directly influences the height of thermal efficiency of cycle, and for common generator group, cold source energy is decided by the design parameter of unit.Heat loss due to exhaust gas is maximum in station boiler various heat losses one, and the heat loss due to exhaust gas of modern station boiler is typically about 4%～8%.The key factor affecting heat loss due to exhaust gas is exhaust gas temperature.According to statistics, in thermal power plant, the heat loss due to exhaust gas of boiler accounts for the 60%～70% of boiler Total heat loss.Exhaust gas temperature often rises 10 DEG C, and boiler efficiency just declines 0.6～1.0%, and standard coal consumption rising 1.2～2.4g/ (kW h), thus causing the huge waste of steam coal for power.At present, exhaust gas temperature is too high has become the one of the main reasons affecting boiler efficiency.For alleviating cold end corrosion, the exhaust gas temperature of boiler is typically designed at 130～l50 DEG C, but usually owing to back-end surfaces dust stratification, burn into leak out and the impact of combustion conditions, actual motion exhaust gas temperature is higher than design load more than 20 DEG C.Therefore, reduce exhaust gas temperature, for saving fuel, raising unit efficiency, reducing to pollute, there is important practical significance.
But existing retracting device can cause that waste heat exists, and reclaim not comprehensive, substantial amounts of wasting phenomenon is there is during waste heat recovery, such as ZSHH-A type heat pipe waste-heat recoverer (air-water), its underpart is flue, top is water tank, there is dividing plate centre, relief valve is arranged at top, Pressure gauge, thermometer interface, water tank has Inlet and outlet water and sewage draining exit, its exchange being disadvantageous in that in removal process only hydro-thermal, the heat energy not discharged completely for the part contained in flue gas could not enough utilize, thus causing the waste of heat energy, this process can not realize secondary recovery simultaneously, lack the process to tail gas simultaneously；RFHH-B type heat pipe waste-heat recoverer (water-gas), two wing passages are separated by its surrounding bobbin carriage, central dividing plate, heat pipe is full finned tube, single heat pipe is replaceable, it is disadvantageous in that single tube can not control the flow velocity of cold water, and it is insufficient to there is heat exchange in water_air exchange process, thus causing in the flue gas discharged containing some heat, additionally the temperature of this waste heat recovery can not be monitored anywhere or anytime, is merely able to control water temperature by the turnover amount of adjustment flue gas；The incinerator of the exhaust gas recovery system of Nanjing Yi Rezonglian Science and Technology Ltd. is convergent-divergent tubular type unique texture, flame distribution is uniform, flow perturbation is violent, material burning is thoroughly, it is disadvantageous in that this system adds hot channel and adopts common one way curvilinear conduit, the intake air temperature of flue is relatively low, and its firing rate and recovered steam amount are relatively low, it is impossible to meet Production requirement.
Utility model content
For the deficiencies in the prior art, the technical problem that this utility model intends to solve is to provide a kind of residual heat from boiler fume circulating heat supply system.Existing equipment is improved by this system, flue gas is carried out catalysis burn processing, curvilinear conduit is turned and adopts variable cross-section design, significantly extend heat-exchange time, enable the sufficiently conducted heat exchange of steam and cold water, energy utilization rate is high, heat transfer temperature difference is high, significantly improve heating effect, it is to avoid energy waste, save cost, more energy-conserving and environment-protective.
This utility model solves described technical problem and the technical scheme is that a kind of residual heat from boiler fume circulating heat supply system of offer, it is characterised in that this heating system includes admission line, aerator, dust arrester, residual heat from boiler fume add hot tank, outlet pipe, cold water pipes, chimney, drying device, hot water circulation heated pipeline, boiler, hot water pipeline, catalytic heating device and outlet conduit；It is provided with catalyst in described aerator, the inlet end of aerator connects admission line, outlet side is connected with one end of dust arrester, described residual heat from boiler fume adds and is provided with curved flue gas pipeline in hot tank, curved one end of flue gas pipeline is connected with the other end of dust arrester, and the curved other end of flue gas pipeline is connected with one end of outlet pipe；One end of water inlet and cold water pipes that residual heat from boiler fume adds hot tank is connected, and outlet is connected with one end of outlet conduit；It is provided with catalyst container in described catalytic heating device, and in catalytic heating device, the outer surface of catalyst container is surrounded with hot water circulation heated pipeline；The bottom of described catalyst container is connected with the other end of outlet pipe, and the top of catalyst container is provided with catalyst adding device；Described hot water circulation heated pipeline is one way curve pipe, it is provided with fin outside hot water circulation heated pipeline, hot water circulation heated pipe interior adopts silk screen compound tube core, at the turning of hot water circulation heated pipeline, varying cross-section duct is set, one end of hot water circulation heated pipeline is connected with the other end of outlet conduit, the other end of hot water circulation heated pipeline is connected with the hot water inlet port of the boiler being disposed in the interior by hot water pipeline, the cooling water outlet of boiler is connected with the other end of cold water pipes, is provided with temperature detection display unit inside boiler；Described drying device is arranged on the top of catalytic heating device, and the bottom of drying device is connected with the catalyst adding device of catalytic heating device by exhaustor, and the top of drying device is connected with chimney.
Compared with prior art, the beneficial effects of the utility model are:
1, this utility model utilizes aerator to be incorporated in dust arrester by the flue gas produced in thermal power plant to carry out dedusting, flue gas after dedusting adds in hot tank and is heated by the cold water in case entering into residual heat from boiler fume, flue gas enters into the catalyst container in catalytic heating device afterwards, react with catalyst, remove the sulfur dioxide in flue gas, the harmful gass such as nitric oxide, then by drying device, reacted flue gas is dried, finally discharged by chimney, whole process adopts the waste heat of boiler smoke and utilizes the heat two ways that flue gas carries out catalytic reaction generation that cold water is heated, it is greatly saved the energy, heat transfer temperature difference is high, heating effect is good, can also effectively remove the harmful substance in flue gas, purifying smoke, protection environment.
2, boiler is incorporated into residual heat from boiler fume by cold water pipes and adds in hot tank and be heated by this utility model, water after heating enters into hot water circulation heated pipeline in catalytic heating device through outlet conduit, the heat that in catalyst container, catalytic reaction produces is utilized again to heat, finally returned to hot-water supply in boiler by hot water pipeline, it is capable of water circulating-heating, and the hot water in boiler can use by domestic hot-water supply, save the energy further.
3, this utility model was provided with dust arrester before residual heat from boiler fume adds hot tank, can by the dust Impurity removal in flue gas, it is to avoid dust impurity enters into curved flue gas inner pipeline plug plug pipeline, and then improves the service life of curved flue gas pipeline, reduce maintenance capacity, reduce maintenance cost.
4, this utility model adopts curved flue gas pipeline to adopt curved design, strengthens the heating surface (area) (HS of flue gas, and then improves the efficiency of heating surface of fume afterheat, it is to avoid the waste of the energy.
5, this utility model adopts hot water circulation heated pipeline, adds the area of flood, improves catalytic reaction further and produces the heats of heat, avoids the loss of heat and the waste of the energy further.
6, simple in construction of the present utility model, each parts are relatively cheap, low cost of manufacture, it is possible to widely use on a large scale.
This utility model directly utilizes existing equipment, and existing equipment is improved, and arranges catalyst in aerator, makes flue gas catalysis burning again in aerator, it is possible to utilize energy more fully, improve capacity usage ratio.Secondly, hot water circulation heated pipeline adopts variable cross-section design at pipeline turning place, increases the coefficient of heat transfer, heat exchange amount can be increased in unit are, curvilinear conduit can at utmost carry out heat exchange simultaneously, significantly extends heat-exchange time, so that steam can heat exchange sufficiently conducted with cold water.In this utility model, hot water circulation heated pipeline and curved flue gas pipeline all adopt nickel-base alloy to make, such as Ni (about 70%)-Cu (about 30%) alloy, this alloy in concentration less than 80%, temperature not higher than 50 DEG C～sulphuric acid of 100 DEG C of on-inflatables, concentration less than 50%, temperature less than 100 DEG C HF acid, in the medium such as acetic acid and caustic alkali, corrosion resistance is good, can use, have stronger exchange capability of heat under the mal-conditions such as acidity.It addition, the flue gas reclaimed can be recycled by heating system of the present utility model so that waste gas reaches the standard of discharge.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of this utility model a kind of embodiment of residual heat from boiler fume circulating heat supply system.
In figure: 1-admission line, 2-aerator, 3-dust arrester, the curved flue gas pipeline of 4-, 5-residual heat from boiler fume adds hot tank, 6-outlet pipe, 7-cold water pipes, 8-catalyst adding device, 9-chimney, 10-drying device, 11-catalyst container, 12-hot water circulation heated pipeline, 13-boiler, 14-is indoor, 15-temperature detection display unit, 16-hot water pipeline, 17-catalytic heating device, 18-outlet conduit.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing thereof, this utility model is described in further detail, but not in this, as the restriction to the application claims.
This utility model residual heat from boiler fume circulating heat supply system (be called for short heating system, referring to Fig. 1) includes admission line 1, aerator 2, dust arrester 3, residual heat from boiler fume add hot tank 5, outlet pipe 6, cold water pipes 7, chimney 9, drying device 10, hot water circulation heated pipeline 12, boiler 13, hot water pipeline 16, catalytic heating device 17 and outlet conduit 18；It is provided with catalyst in described aerator 2, the inlet end of aerator 2 connects admission line 1, outlet side is connected with one end of dust arrester 3, described residual heat from boiler fume adds and is provided with curved flue gas pipeline 4 in hot tank 5, one end of curved flue gas pipeline 4 is connected with the other end of dust arrester 3, and the other end of curved flue gas pipeline 4 is connected with one end of outlet pipe 6；One end of water inlet and cold water pipes 7 that residual heat from boiler fume adds hot tank 5 is connected, and outlet is connected with one end of outlet conduit 18；It is provided with catalyst container 11 in described catalytic heating device 17, and in catalytic heating device 17, the outer surface of catalyst container 11 is surrounded with hot water circulation heated pipeline 12；The bottom of described catalyst container 11 is connected with the other end of outlet pipe 6, and the top of catalyst container 11 is provided with catalyst adding device 8；Described hot water circulation heated pipeline 12 is one way curve pipe, it is provided with fin outside hot water circulation heated pipeline 12, hot water circulation heated pipeline 12 is internal adopts silk screen compound tube core, at the turning of hot water circulation heated pipeline 12, varying cross-section duct is set, one end of hot water circulation heated pipeline 12 is connected with the other end of outlet conduit 18, the other end of hot water circulation heated pipeline 12 is connected with the hot water inlet port of the boiler 13 being disposed in the interior 14 by hot water pipeline 16, the cooling water outlet of boiler 13 is connected with the other end of cold water pipes 7, temperature detection display unit 15 it is provided with inside boiler 13；Described drying device 10 is arranged on the top of catalytic heating device 17, and the bottom of drying device 10 is connected with the catalyst adding device 8 of catalytic heating device 17 by exhaustor, and the top of drying device is connected with chimney 9.
The oblique section that intersection is 65～75 ° of the pipeline that the inside being further characterized by described varying cross-section duct of the present utility model is connected with turning, can at utmost carry out current limliting, can also effectively prevent owing to the increase of pressure causes that the phenomenon of differential expansion occurs in variable cross-section place, by changing the shape of heat-transfer area, the flowing making fluid becomes more disorderly, destroy its border fluid layer so that heat transfer strengthens.The inside of hot water circulation heated pipeline 12 adopts silk screen compound tube core, this silk screen multiple tube core inner is evenly distributed with fluting, the flow velocity of water can be better controled over, thus increasing the exchange rate of water and flue gas, the heat transfer temperature difference that can make curved flue gas pipeline 4 and hot water circulation heated pipeline 12 controls at about 10 DEG C, and by the impact in season.
The catalyst being further characterized by described aerator 2 of the present utility model is vanadic anhydride, platinum-rhodium alloy, platinum-nickel alloys or the metal based on ferrum.Catalyst in catalyst container 11 is identical with the catalyst in aerator 2.
Of the present utility model being further characterized by described temperature detection display unit 15 and adopt infrared thermal sensor, this sensor is conducive to improving the sensitivity of thermometric.
Of the present utility model being further characterized by the fume dust remover that described dust arrester 3 adopts the DTTW-2 type of double alkali method desulfurizing technology, dust arrester 3 is internal is provided with sieves and drying layer, it is possible to efficiently improve flue dust detersive efficiency；Drying device 10 is internal is sequentially provided with graphite dry layer from top to bottom, fine filtering net and preliminary drainage screen, what graphite dry layer adopted is the graphite of porous density, what fine filtering net adopted is double-level-metal net, what preliminary drainage screen adopted is activated charcoal strainer, utilize the principle of compressor cooling, sample gas damp and hot for high temperature is fully freezed in heat exchanger, wherein hot and humid gas is made to be condensed into liquid, by peristaltic pump (or other modes), condensed fluid is discharged simultaneously, reach gas-liquid separation, significantly reduce the water content in sample gas, ensure the normal operation of relevant device.
The solid particle absorption plant being further characterized by being provided with multiple layer metal net in described chimney 9 of the present utility model, described wire netting can be aluminum foil web, stainless (steel) wire or punched-plate composite web, wire netting is waveform, multiple layer metal net is arranged in order according to aperture is from coarse to fine from top to bottom in chimney, make discarded by time repeatedly change flow direction, increase its efficiency.
Operation principle and the using method of this utility model residual heat from boiler fume circulating heat supply system be: the waste gas that steam power plant or steel plant produce, enter through admission line 1, it is heated at aerator 2 place, it is provided with catalyst in aerator 2, catalytic reaction can be accelerated, the solid carbon granule contained in waste gas is made fully to burn, waste gas (being ironmaking or the waste gas burning coal generation here) after fully burning enters residual heat from boiler fume through dust arrester 3 (adopting the fume dust remover of the DTTW-2 type of double alkali method desulfurizing technology) and adds in hot tank 5, and carry out heat exchange with the cold water in cold water pipes 7, now, temperature detection display unit 15 in boiler 13 detects temperature in real time, when the water temperature in boiler is indoor heating after raising；The other end that waste gas after simultaneously fully burning adds the curved flue gas pipeline 4 in hot tank 5 at residual heat from boiler fume enters in catalyst container 11 through outlet pipe 6, again carry out heat exchange with the cold water in hot water circulation heated pipeline 12, the waste gas again recycled is drained in drying device 10 by exhaustor, carry out waste gas remove impurity process, then pass through chimney 9 and be drained in air.
nullThis utility model utilizes aerator 2 to be incorporated in dust arrester 3 by the flue gas produced in thermal power plant to carry out dedusting，Flue gas after dedusting adds the cold water adding in hot tank by residual heat from boiler fume in hot tank 5 and is heated entering into residual heat from boiler fume，Flue gas enters in catalyst container 11 afterwards，In catalyst container 11, catalyst is added by catalyst adding device 8，Flue gas reacts with the catalyst in catalyst container，Remove the sulfur dioxide in flue gas、The harmful gass such as nitric oxide，Then by drying device 10, reacted flue gas is dried，Finally discharged by chimney 9，Whole process adopts the waste heat of boiler smoke and utilizes the heat two ways that flue gas carries out catalytic reaction generation that cold water is heated，It is greatly saved the energy，Heat transfer temperature difference is high、Heating effect is good，Can also effectively remove the harmful substance in flue gas，Purifying smoke，Protection environment；By cold water pipes 7, flue gas is incorporated into residual heat from boiler fume to add in hot tank 5 and be heated, water after heating enters into the hot water circulation heated pipeline 12 in catalytic heating device through outlet conduit 18, the heat that in catalyst container 11, catalytic reaction produces is utilized again to heat, finally returned to hot-water supply in boiler by hot water pipeline 16, it is capable of water circulating-heating, saves the energy further；Dust arrester 3 it was provided with before residual heat from boiler fume adds hot tank 5, can by the dust Impurity removal in flue gas, it is to avoid dust impurity enters into curved flue gas inner pipeline plug plug pipeline, and then improves the service life of curved flue gas pipeline, reduce maintenance capacity, reduce maintenance cost；Flue gas pipeline 12 adopts the one way curve pipe of curved design, according to the size of different cross section place heat and varying in size of fluid pressure, the flow velocity of water in pipeline is changed, significantly improve the exchange capability of heat of pipeline, turning varying cross-section duct the heat transfer problem that can effectively prevent owing to turning build-up of pressure inequality causes is set, under the premise ensureing heat exchange efficiency, cost can be significantly reduced, and increase the heating surface (area) (HS of flue gas, and then the efficiency of heating surface of raising fume afterheat, effectively prevent the waste of the energy.
Embodiment 1
The present embodiment residual heat from boiler fume circulating heat supply system includes admission line 1, aerator 2, dust arrester 3, residual heat from boiler fume add hot tank 5, outlet pipe 6, cold water pipes 7, chimney 9, drying device 10, hot water circulation heated pipeline 12, boiler 13, hot water pipeline 16, catalytic heating device 17 and outlet conduit 18；It is provided with catalyst in described aerator 2, the inlet end of aerator 2 connects admission line 1, outlet side is connected with one end of dust arrester 3, described residual heat from boiler fume adds and is provided with curved flue gas pipeline 4 in hot tank 5, one end of curved flue gas pipeline 4 is connected with the other end of dust arrester 3, and the other end of curved flue gas pipeline 4 is connected with one end of outlet pipe 6；One end of water inlet and cold water pipes 7 that residual heat from boiler fume adds hot tank 5 is connected, and outlet is connected with one end of outlet conduit 18；It is provided with catalyst container 11 in described catalytic heating device 17, and in catalytic heating device 17, the outer surface of catalyst container 11 is surrounded with hot water circulation heated pipeline 12；The bottom of described catalyst container 11 is connected with the other end of outlet pipe 6, and the top of catalyst container 11 is provided with catalyst adding device 8；Described hot water circulation heated pipeline 12 is one way curve pipe, it is provided with fin outside hot water circulation heated pipeline 12, hot water circulation heated pipeline 12 is internal adopts silk screen compound tube core, at the turning of hot water circulation heated pipeline 12, varying cross-section duct is set, one end of hot water circulation heated pipeline 12 is connected with the other end of outlet conduit 18, the other end of hot water circulation heated pipeline 12 is connected with the hot water inlet port of the boiler 13 being disposed in the interior 14 by hot water pipeline 16, the cooling water outlet of boiler 13 is connected with the other end of cold water pipes 7, temperature detection display unit 15 it is provided with inside boiler 13；Described drying device 10 is arranged on the top of catalytic heating device 17, and the bottom of drying device 10 is connected with the catalyst adding device 8 of catalytic heating device 17 by exhaustor, and the top of drying device is connected with chimney 9.
In the present embodiment, the catalyst in aerator 2 is platinum-nickel alloys catalyst, and dust arrester 3 adopts the fume dust remover of the DTTW-2 type of double alkali method desulfurizing technology, and dust arrester 3 is internal is provided with sieves and drying layer, it is possible to efficiently improve flue dust detersive efficiency；Drying device 10 is internal is sequentially provided with graphite dry layer, fine filtering net and preliminary drainage screen from top to bottom, and what graphite dry layer adopted is the graphite of porous density, and what fine filtering net adopted is double-level-metal net, and what preliminary drainage screen adopted is activated charcoal strainer.Multilamellar punched-plate composite web it is provided with in described chimney 9.
The exhaust gas recovery system consumption 30% capable of saving fuel of Nanjing Yi Rezonglian Science and Technology Ltd., recovered steam amount is all higher by about 20% than ZSHH-A type heat pipe waste-heat recoverer (air-water) and RFHH-B type heat pipe waste-heat recoverer (water-gas), and the heat exchange efficiency of the present embodiment heating system is between 85% to 90%, and the energy more than 50% can be saved, and fume afterheat recycling can be carried out three times, make in whole process, waste heat recovery rate reaches about 60%, illustrate that the present embodiment heating system waste heat recovery is comprehensive, and energy utilization rate is high when reclaiming, avoid a large amount of waste problems of waste heat, commercial production demand can be met well, and it is less costly, bigger economic benefit is brought for enterprise.
Drying device that this utility model relates to, dust arrester, absorption plant etc. all can pass through commercially available.
This utility model does not address part all suitable in prior art.
Utilize the technical solution of the utility model, or those skilled in the art is under the inspiration of technical solutions of the utility model, design similar technical scheme, and reach above-mentioned technique effect, all fall into this utility model scope of the claims.
Claims (4)
1. a residual heat from boiler fume circulating heat supply system, it is characterised in that this heating system includes admission line, aerator, dust arrester, residual heat from boiler fume add hot tank, outlet pipe, cold water pipes, chimney, drying device, hot water circulation heated pipeline, boiler, hot water pipeline, catalytic heating device and outlet conduit；It is provided with catalyst in described aerator, the inlet end of aerator connects admission line, outlet side is connected with one end of dust arrester, described residual heat from boiler fume adds and is provided with curved flue gas pipeline in hot tank, curved one end of flue gas pipeline is connected with the other end of dust arrester, and the curved other end of flue gas pipeline is connected with one end of outlet pipe；One end of water inlet and cold water pipes that residual heat from boiler fume adds hot tank is connected, and outlet is connected with one end of outlet conduit；It is provided with catalyst container in described catalytic heating device, and in catalytic heating device, the outer surface of catalyst container is surrounded with hot water circulation heated pipeline；The bottom of described catalyst container is connected with the other end of outlet pipe, and the top of catalyst container is provided with catalyst adding device；Described hot water circulation heated pipeline is one way curve pipe, it is provided with fin outside hot water circulation heated pipeline, hot water circulation heated pipe interior adopts silk screen compound tube core, at the turning of hot water circulation heated pipeline, varying cross-section duct is set, one end of hot water circulation heated pipeline is connected with the other end of outlet conduit, the other end of hot water circulation heated pipeline is connected with the hot water inlet port of the boiler being disposed in the interior by hot water pipeline, the cooling water outlet of boiler is connected with the other end of cold water pipes, is provided with temperature detection display unit inside boiler；Described drying device is arranged on the top of catalytic heating device, and the bottom of drying device is connected with the catalyst adding device of catalytic heating device by exhaustor, and the top of drying device is connected with chimney.
2. residual heat from boiler fume circulating heat supply system according to claim 1, it is characterised in that the intersection of the pipeline that the inside of described varying cross-section duct is connected with turning is the oblique section of 65 ~ 75 °, described silk screen multiple tube core inner is evenly distributed with fluting.
3. residual heat from boiler fume circulating heat supply system according to claim 1, it is characterised in that the catalyst in described aerator is vanadic anhydride, platinum-rhodium alloy or platinum-nickel alloys catalyst.
4. residual heat from boiler fume circulating heat supply system according to claim 1, it is characterised in that described temperature detection display unit adopts infrared thermal sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620188902.7U CN205372701U (en) | 2016-03-12 | 2016-03-12 | Waste heat of boiler flue gas circulation heat supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620188902.7U CN205372701U (en) | 2016-03-12 | 2016-03-12 | Waste heat of boiler flue gas circulation heat supply system |
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| Publication Number | Publication Date |
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| CN205372701U true CN205372701U (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620188902.7U Withdrawn - After Issue CN205372701U (en) | 2016-03-12 | 2016-03-12 | Waste heat of boiler flue gas circulation heat supply system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570956A (en) * | 2016-03-12 | 2016-05-11 | 河北工业大学 | Boiler flue gas waste heat circulating heat-supply system |
-
2016
- 2016-03-12 CN CN201620188902.7U patent/CN205372701U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570956A (en) * | 2016-03-12 | 2016-05-11 | 河北工业大学 | Boiler flue gas waste heat circulating heat-supply system |
| CN105570956B (en) * | 2016-03-12 | 2018-03-16 | 河北工业大学 | A kind of residual heat from boiler fume circulating heat supply system |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20160706 Effective date of abandoning: 20180316 |
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| AV01 | Patent right actively abandoned |