CN207716504U - A kind of heating network optimization system - Google Patents

A kind of heating network optimization system Download PDF

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Publication number
CN207716504U
CN207716504U CN201720492070.2U CN201720492070U CN207716504U CN 207716504 U CN207716504 U CN 207716504U CN 201720492070 U CN201720492070 U CN 201720492070U CN 207716504 U CN207716504 U CN 207716504U
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CN
China
Prior art keywords
air
heat exchanger
pipe network
connect
outlet
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Expired - Fee Related
Application number
CN201720492070.2U
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Chinese (zh)
Inventor
郭贤明
于文益
钟式玉
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GUANGDONG R&D CENTER FOR TECHNOLOGICAL ECONOMY
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GUANGDONG R&D CENTER FOR TECHNOLOGICAL ECONOMY
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Priority to CN201720492070.2U priority Critical patent/CN207716504U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/34Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

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  • Gasification And Melting Of Waste (AREA)

Abstract

The utility model discloses a kind of heating network optimization system, including the pipe network that exchanges heat, the heat exchange pipe network is by water knockout drum, several pipe network heat exchangers and water collector, water-main is divided into several heat exchanger tubes arranged side by side by the water knockout drum, the heat exchanger tube is separately connected pipe network heat exchanger, the pipe network heat exchanger is connect with high steam, and the heat transfer tube outlet is connect after being connect with the water collector with steam boiler water inlet pipe.The utility model has the advantages that:Biogas and coal dust mixing import second-time burning in stove chamber inner combustion and burner hearth, allow the fuel to adequately burn, discharge highest calorific value;Using radiation of burner hearth waste-heat air, fuel is fully warmed-up, is conducive to improve gasification of biomass efficiency;Using wind cap structure, the phenomenon that effectivelying prevent fuel to block stomata;Steam pipe network replaces cascaded structure using in parallel, can reduce heat exchanger volume, cost-effective and raising heat exchange efficiency.

Description

A kind of heating network optimization system
【Technical field】
The utility model is related to boiler combustion and pipe network optimisation technique field, more particularly to a kind of raising efficiency of combustion is excellent Change the heating network optimization system of pipe network.
【Background technology】
The fire grate and the induced draft plate above fire grate that existing boiler includes burner hearth, is arranged in burner hearth, in the stove Conveyer belt and the hopper for being input into raw coal are set outside thorax.After raw coal burns on fire grate, heat under the guiding of chimney arch first on Conveying.In such structure, raw coal burns on fire grate, and ignition temperature is relatively low, and burning time is short, and raw coal is difficult to have burnt Entirely, efficiency of combustion is low and nitrogen oxides in effluent content is high, causes seriously to pollute to environment.
Nitrogen oxides (nitrogen oxides) includes multiple compounds, such as nitrous oxide (N2O), nitric oxide (NO), nitrogen dioxide (NO2), nitrogen trioxide (N2O3), dinitrogen tetroxide (N2O4) and dinitrogen pentoxide (N2O5) etc..Except dioxy Change other than nitrogen, other nitrogen oxides are extremely unstable, meet light, wet or thermal change into nitrogen dioxide and nitric oxide, nitric oxide is again Become nitrogen dioxide.Nitrogen oxides all has different degrees of toxicity.
The NOx of human activity discharge, most of combustion process from fossil fuel, such as automobile, aircraft, internal combustion engine and work The combustion process of industry kiln;Also from production, using the process of nitric acid, as nitrogen fertilizer plant, organic intermediate factory, coloured and black are golden Belong to smeltery etc..The whole world is every year since the NOx that mankind's activity is discharged to air is more than 60,000,000 tons.Damages of the NOx to environment Effect is very big, it is both to form one of main matter of acid rain, and form the important substance of photochemical fog in air and disappear Consume O3An important factor.
Nitrogen oxides can stimulate lung, make one the more difficult respiratory disease for resisting flu etc, and respiratory system is problematic Personage such as asthmatics, can be easier to be influenced by nitrogen dioxide.For children, nitrogen oxides is likely to result in lung's development It is impaired.Research points out that sucking nitrogen oxides for a long time may result in lung's structural change, but still not can determine leads to this consequence Amount of nitrogen oxides and sucking gas time.
It mainly uses reducing agent (ammonia, urea, alkane etc.) that chemical reaction occurs with nitrogen oxides in industry and neutralizes nitrogen Oxide, technique mainly selective catalytic reduction method (SCR) and selective non-catalytic reduction method (SNCR) etc., ammonia and nitrogen oxygen Nitrogen and water are generated after compound reaction, to reach non-pollution discharge.But process operations are complicated, operating cost is too high.
In addition, existing steam pipe network is exchanged heat by concatenated heat exchanger, pot is entered after heating the water to nearly 300 DEG C Stove, the heat exchanger volume needed in this system is than big, and heat exchanger efficiency is not high.
【Utility model content】
The utility model aim is in view of the deficiency of the prior art, to provide a kind of high combustion efficiency, energy-saving ring It protects, and pipe network is small, the high heating network optimization system of heat exchange efficiency.
Technical solution used by the utility model is:A kind of heating network optimization system, including steam boiler, biomass Gasification furnace and heat exchange pipe network, cold water pipes are connect by biomass gasifying furnace external jacket with First Heat Exchanger, first heat exchange Device is connect with the discharge fume pipe of the biomass gasifying furnace, and the heat exchanger is connect with the heat exchange pipe network, the heat exchanger tube Net is connect with steam boiler, and the steam copper connects burner, and the burner connects the biomass gasifying furnace;It is described Pipe network exchange heat by water knockout drum, several pipe network heat exchangers and water collector, water-main is divided into several heat exchange arranged side by side by the water knockout drum Pipe, the heat exchanger tube is separately connected pipe network heat exchanger, and the pipe network heat exchanger is connect with high steam, the heat transfer tube outlet in It is connected in steam boiler water inlet pipe after the water collector connection, several high steams exchange heat with cold water respectively by temperature gradient, so After be connected in parallel, 20 DEG C of cold water is first exchanged heat with the high steam pipeline section of different temperatures by heat exchanger respectively, then simultaneously 272.2 DEG C of available high-temperature-hot-water is given birth in coproduction, and such heat transfer temperature difference is big, and heat exchange efficiency is high.
The burner hearth of the burner and steam boiler is tangentially connected.
Air compartment is set below the burner hearth, and air distribution plate is arranged between burner hearth, air inlet is arranged on the air compartment for the air compartment Mouthful, if capable person is arranged on the air distribution plate enters the wind the blast cap for introducing in burner hearth and participating in burning.
The blast cap includes outlet air conduit and Anti-stop cover, and the Anti-stop cover is placed on outlet air conduit at the top of the outlet air conduit The air outlet of top closure, the Anti-stop cover is downward, outlet air conduit side be arranged at least one air-vent with it is described anti-blocking The air-out chamber formed between cover and wind conduit lateral wall connects, and the air-out chamber is connected to air outlet.
The blast cap includes outlet air conduit and Anti-stop cover, and the Anti-stop cover is placed at the top of the outlet air conduit, by anti-blocking Cover madial wall is fixedly connected with wind conduit lateral wall, is arranged outside air-vent and the Anti-stop cover and wind conduit at the top of the wind conduit The air-out chamber connection formed between side wall, the air outlet of the Anti-stop cover is downward, and the air-out chamber is connected to air outlet.
The burner has fuel mixed zone and powder gas mixed zone, and the fuel mixed zone passes through with powder gas mixed zone Partition board is separated by;Powder delivering pipe and the powder gas being wrapped on the outside of powder delivering pipe mixing folder are set in powder gas mixed zone Set, is arranged mixing chamber, the powder carry between the lateral wall of the powder delivering pipe and the powder gas mixing chuck madial wall Through-hole is arranged on pipe to communicate with the mixing chamber, tangent air inlet is provided on the powder gas mixing chuck and is connected with the mixing chamber It is logical;Entrance hole is arranged between the mixing chamber and the fuel mixed zone to communicate;Tangential air guide is set on the fuel mixed zone Hole, the tangential gas port are connect with biomass gasifying furnace, for tangentially importing biogas.
Chuck is set outside the burner hearth, forms closed interlayer space between the chuck and the hearth outer wall, it is described Interlayer space is connected by the air inlet pipe of air hose and biomass gasifying furnace, for providing preheated air to biomass gasifying furnace, Improve gasification efficiency.
The biomass gasifying furnace output end is connect with air compartment igniting entrance, is used for for providing part biological matter gas Igniting.
Compared with prior art, the utility model has the advantages that:1. biomass in stove chamber inner combustion and burner hearth Gas and coal dust mixing import second-time burning, allow the fuel to adequately burn, discharge highest calorific value;2. using radiation of burner hearth waste heat Air is heated, fuel is fully warmed-up, is conducive to improve gasification of biomass efficiency;3. using wind cap structure, effectively The phenomenon that preventing fuel from blocking stomata;4. steam pipe network replaces cascaded structure using in parallel, heat exchanger volume can be reduced, saved Cost and raising heat exchange efficiency.
【Description of the drawings】
Fig. 1 is a kind of system schematic of heating network optimization system of the utility model;
Fig. 2 is the organigram of burner in a kind of heating network optimization system of the utility model;
Fig. 3 is a kind of organigram 1 of heating network optimization system Apoplexy cap of the utility model;
Fig. 4 is a kind of organigram 3 of heating network optimization system Apoplexy cap of the utility model;
Fig. 5 is the organigram of burner in a kind of heating network optimization system of the utility model;
Fig. 6 is the flow chart of heat exchange pipe network in a kind of heating network optimization system of the utility model.
【Specific implementation mode】
Explanation is described in detail to the utility model below in conjunction with the drawings and specific embodiments.
A kind of heating network optimization system, as shown in Fig. 1 what Fig. 6, including steam boiler 4, biomass gasifying furnace 1 and heat exchange Pipe network 3, cold water pipes after 1 external jacket waste heat of biomass gasifying furnace with First Heat Exchanger 2 by connecting, the First Heat Exchanger 2 It is connect with the discharge fume pipe of the biomass gasifying furnace 1, the discharge waste heat for making full use of biomass gasifying furnace 1;It is described Heat exchanger 1 is connect with the heat exchange pipe network 3, and the heat exchange pipe network 3 is connect with steam boiler 4, the connection burning dress of the steam copper 4 12 are set, the burner 12 connects the biomass gasifying furnace 1, for utilizing biological fuel gas tangential firing in burner hearth; The steam copper 4 is connect by pipeline with generating equipment 5, one branch of delivery pipe and the biomass of the generating equipment 5 Gasification furnace chuck connects, and is used for the circulating and recovering of thermal energy, and another branch's delivery pipe connection floss hole removes heat user 6, further profit With remaining thermal energy.For the heat exchange pipe network 3 by water knockout drum 31, several pipe network heat exchangers 33 and water collector 32, the water knockout drum 31 will Water-main is divided into several heat exchanger tubes 34 arranged side by side, and the heat exchanger tube 34 is separately connected pipe network heat exchanger 33, the pipe network heat exchanger 33 connect with high steam, and the heat transfer tube outlet is connect after being connect with the water collector 32 with steam boiler water inlet pipe, several High steam by temperature gradient respectively with cold water exchange heat, be then connected in parallel, by 20 DEG C of cold water first respectively with different temperatures High steam pipeline section exchanged heat by heat exchanger, the then in parallel high-temperature-hot-water for generating 272.2 DEG C, such heat transfer temperature difference is big, changes The thermal efficiency is high, and the pipe network heat exchanger volume needed is small.
As shown in Fig. 2, the burner 12 and the burner hearth of burner hearth 11 are tangentially connected.Under the burner hearth 11 of the steam boiler Side's setting air compartment 7, is arranged air distribution plate 8 between the air compartment 7 and burner hearth 11, air inlet 16, the cloth is arranged in the air compartment lower part If capable person is arranged on aerofoil enters the wind the blast cap 15 for introducing in burner hearth and participating in burning.Burner 12 connect with burner hearth 11 and communicates, institute It states burner 12 and gasification of biomass outlet of still 14 and air hose 13 is tangentially connected.Chuck is set outside the burner hearth 11, it is described Closed interlayer space is formed between chuck and the hearth outer wall, the interlayer space passes through air hose and biomass gasifying furnace Air inlet pipe connection, for biomass gasifying furnace 1 provide preheated air, improve gasification efficiency.The biomass gasifying furnace goes out Mouth 14 is connect with 7 bottom priming entrance of the air compartment, for providing part biological matter gas for lighting a fire.
As shown in figure 3, the blast cap 15 includes outlet air conduit 151 and Anti-stop cover 152, the Anti-stop cover 152 is placed on described 151 top of outlet air conduit is by 151 top closure of outlet air conduit, and the air outlet 153 of the Anti-stop cover 151 is downward, and the outlet air is led The air-out chamber formed between at least one air-vent 154 and the Anti-stop cover 152 and outlet air conduit lateral wall is arranged in 151 side of pipe 155 connections, the air-out chamber 155 are connected to air outlet 153.
As shown in figure 4, the blast cap 15 includes outlet air conduit 151 and Anti-stop cover 152, the Anti-stop cover 152 is placed on described 151 top of outlet air conduit, is fixedly connected by 152 madial wall of Anti-stop cover with 151 lateral wall of outlet air conduit, the outlet air conduit The air-out chamber 155 formed between 151 top setting air-vents 154 and 151 lateral wall of the Anti-stop cover 152 and outlet air conduit connects It connects, the air outlet 153 of the Anti-stop cover 152 is downward, and the air-out chamber 155 is connected to air outlet 153.
Inflammable air effectively can be introduced burner hearth and participate in burning with fuel by above-mentioned blast cap 15, and air inlet is uniform, and effectively Prevent fuel flow backwards block.
As shown in figure 5, the burner 12 has fuel mixed zone 121 and powder gas mixed zone 122, the fuel mixing Area 121 is separated by with powder gas mixed zone 122 by partition board;Powder delivering pipe 127 is set in powder gas mixed zone 122 and is wrapped in The powder gas mixing chuck 125 in 127 outside of the powder delivering pipe, the lateral wall of the powder delivering pipe 127 are mixed with the powder gas Mixing chamber 129 is arranged between covering 125 madial walls in co-clip, and through-hole 128 and the mixing chamber is arranged in the powder delivering pipe 127 129 communicate, and be provided with tangent air inlet 126 on the powder gas mixing chuck 125 is connected to the mixing chamber 129;The mixing Entrance hole 124 is arranged between chamber 129 and the fuel mixed zone 121 to communicate;Tangential air guide is set on the fuel mixed zone 121 Hole 123, the tangential gas port 123 are connect with biomass gasifying furnace 14, for tangentially importing biogas.The powder carry Pipe 127 is used for pulverized coal conveying, and wherein coal dust accounts for the 30% of total fuel.
Wherein, the burner hearth bottom coal particle fuel accounts for the 40% of total fuel, and biogas fluid fuel accounts for the 30% of fuel, In this way by second-time burning, fuel economy is can effectively improve, reduces exhaust emission.
As shown in fig. 6, several high steams exchange heat with cold water respectively by temperature gradient in the heat exchange pipe network 3, then simultaneously It is linked togather.20 DEG C of cold water is first exchanged heat with the high steam pipeline section of different temperatures by heat exchanger respectively, then co-production Raw 272.2 DEG C of available steam.Series connection pipe network is optimized with parallel connection, it is possible to reduce heat exchanger volume improves heat exchange efficiency, Less energy is lost.Wherein water knockout drum 31 and water collector 32 can be a babinets, and the pipe network heat exchanger 33 is commercially available heat exchange Device.
The preferred embodiment of the utility model described in detail above, it should be understood that the ordinary skill of this field without It needs creative work according to the present utility model can conceive and makes many modifications and variations.Therefore, it is all in the art Technical staff conceives in prior art basis according to the utility model through logic analysis, reasoning or can according to limited experiment It, should be among the protection domain determined by the claims with obtained technical solution.

Claims (8)

1. a kind of heating network optimization system, including steam boiler, biomass gasifying furnace and heat exchange pipe network, it is characterised in that:It is cold Waterpipe is connect by biomass gasifying furnace external jacket with First Heat Exchanger, the First Heat Exchanger and the biomass gasifying furnace The connection of discharge fume pipe, the heat exchanger connect with the heat exchange pipe network, and the heat exchange pipe network is connect with steam boiler, described Steam copper connects burner, and the burner connects the biomass gasifying furnace;The heat exchange pipe network is by water knockout drum, several Water-main is divided into several heat exchanger tubes arranged side by side by pipe network heat exchanger and water collector, the water knockout drum, and the heat exchanger tube is separately connected Pipe network heat exchanger, the pipe network heat exchanger are connect with high steam, the heat transfer tube outlet connect with the water collector after with steaming Boiler furnace water inlet pipe connects.
2. a kind of heating network optimization system as described in claim 1, it is characterised in that:The burner and steam boiler Burner hearth it is tangentially connected.
3. a kind of heating network optimization system as claimed in claim 2, it is characterised in that:Air compartment is set below the burner hearth, Air distribution plate is arranged in the air compartment between burner hearth, and air inlet is arranged on the air compartment, is entered the wind if capable person is arranged on the air distribution plate It introduces in burner hearth and participates in the blast cap of burning.
4. a kind of heating network optimization system as claimed in claim 3, it is characterised in that:The blast cap include outlet air conduit and Anti-stop cover, the Anti-stop cover are placed at the top of the outlet air conduit and close outlet air catheter tip, the air outlet of the Anti-stop cover to Under, the outlet air formed between at least one air-vent and the Anti-stop cover and wind conduit lateral wall is arranged in outlet air conduit side Chamber connects, and the air-out chamber is connected to air outlet.
5. a kind of heating network optimization system as claimed in claim 3, it is characterised in that:The blast cap include outlet air conduit and Anti-stop cover, the Anti-stop cover are placed at the top of the outlet air conduit, are fixedly connected with wind conduit lateral wall by Anti-stop cover madial wall, The air-out chamber formed between setting air-vent and the Anti-stop cover and wind conduit lateral wall at the top of the wind conduit connects, described anti- The air outlet of stifled cover is downward, and the air-out chamber is connected to air outlet.
6. a kind of heating network optimization system as described in claim 4 or 5, it is characterised in that:The burner has combustion Material mixed zone and powder gas mixed zone, the fuel mixed zone are separated by with powder gas mixed zone by partition board;In powder gas mixed zone The powder gas mixing chuck that powder delivering pipe is set and is wrapped on the outside of the powder delivering pipe, the lateral wall of the powder delivering pipe Mixing chamber is set between the powder gas mixing chuck madial wall, through-hole and the mixing chamber phase are set in the powder delivering pipe It is logical, it is provided with tangent air inlet on the powder gas mixing chuck and is connected to the mixing chamber;The mixing chamber is mixed with the fuel Setting entrance hole communicates between closing area;Tangential gas port, the tangential gas port and biomass are set on the fuel mixed zone Gasification furnace connects, for tangentially importing biogas.
7. a kind of heating network optimization system as claimed in claim 3, it is characterised in that:Chuck is set outside the burner hearth, institute It states and forms closed interlayer space between chuck and the hearth outer wall, the interlayer space passes through air hose and gasification of biomass The air inlet pipe of stove connects.
8. a kind of heating network optimization system as claimed in claim 7, it is characterised in that:The biomass gasifying furnace output end It is connect with air compartment igniting entrance.
CN201720492070.2U 2017-05-04 2017-05-04 A kind of heating network optimization system Expired - Fee Related CN207716504U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720492070.2U CN207716504U (en) 2017-05-04 2017-05-04 A kind of heating network optimization system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720492070.2U CN207716504U (en) 2017-05-04 2017-05-04 A kind of heating network optimization system

Publications (1)

Publication Number Publication Date
CN207716504U true CN207716504U (en) 2018-08-10

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112815386A (en) * 2021-01-14 2021-05-18 台州智子科技有限公司 Multifunctional efficient heat-preservation and water-storage equipment for heating

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112815386A (en) * 2021-01-14 2021-05-18 台州智子科技有限公司 Multifunctional efficient heat-preservation and water-storage equipment for heating

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180810

Termination date: 20210504

CF01 Termination of patent right due to non-payment of annual fee