CN205939218U - Energy -efficient air preheater of combined type hydrothermal matchmaker - Google Patents
Energy -efficient air preheater of combined type hydrothermal matchmaker Download PDFInfo
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- CN205939218U CN205939218U CN201620895499.1U CN201620895499U CN205939218U CN 205939218 U CN205939218 U CN 205939218U CN 201620895499 U CN201620895499 U CN 201620895499U CN 205939218 U CN205939218 U CN 205939218U
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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 an energy -efficient air preheater of combined type hydrothermal matchmaker, including intersegmental wall type air heater of high temperature and low temperature section hydrothermal matchmaker air heater, the intersegmental wall type air heater of high temperature includes low temperature flue gas passageway, establish the air duct on low temperature flue gas passageway, the low temperature flue gas gets into the export discharge of following low temperature flue gas passageway after the initial heat transfer of air duct wall from the entry of low temperature flue gas passageway, the gas gas heater at the low reaches position of low temperature section hydrothermal matchmaker air heater in establishing the low temperature flue gas passageway after taking place above -mentioned initial heat transfer, establish the air heat exchanger in air duct, gas gas heater and air heat exchanger pass through the airtight intercommunication of water heat transfer piping, water heat transfer piping includes water circulation pipeline, last hot water circulating pump device and the valve member of being equipped with of water circulation pipeline. The utility model discloses a compound multi - stage heat design can realize the abundant purpose of effectively utilizing boiler or heating furnace tail flue gas waste heat, and energy -conserving effect is showing.
Description
Technical field
The utility model is related to a kind of air preheater, particularly to a kind of high efficiency energy-saving of employing multi-stage heat exchanger
Air preheater, belongs to air preheater field.
Background technology
Heat exchanger is chemical industry, oil, the common apparatus of power, food and other many industrial departments, plays aborning
Very important effect.In Chemical Manufacture heat exchanger can as heater, cooler, condenser, evaporimeter and reboiler etc.,
It is widely used.In heat energy heating field, heat exchanger can play transmission heat, improves the effect such as heat transfer efficiency.Heat exchanger species
A lot, but the principle according to cold and hot fluid heat exchange and mode substantially can divide three major types, dividing wall type, hybrid and accumulation of heat
Formula.In three class heat exchangers, dividing wall type heat exchanger is most widely used.At present, most of boilers or heating furnace tail flue gas waste heat
Reclaim and still adopt recuperative airheater, the feature of dividing wall type heat exchanger be hot and cold two fluids by one layer of solid wall surface (pipe or
Plate) separate, mutually do not mix, heat exchange is carried out by partition.This single heat exchange form have impact on the efficiency of heat exchange, the energy
Utilization rate is low.
Content of the invention
The energy-efficient air preheater of the utility model combined-type water heating agent discloses new scheme, using compound multi-stage heat exchanger
Design, solves the problems, such as that existing dividing wall type air heat exchanger heat exchange efficiency is low.
The energy-efficient air preheater of the utility model combined-type water heating agent includes high temperature section recuperative airheater and low temperature
Section hydrothermal medium air preheater, high temperature section recuperative airheater includes low-temperature flue gas passage, is located on low-temperature flue gas passage
Air duct, low-temperature flue gas enter from the entrance of low-temperature flue gas passage and lead to from low-temperature flue gas after air passage wall first heat exchange
The outlet in road is discharged, at the above-mentioned heat exchange first of generation that low-temperature zone hydrothermal medium air preheater includes being located in low-temperature flue gas passage
The flue gas heat-exchange unit of downstream portion, the air heat exchanger being located in air duct, flue gas heat-exchange unit passed through with air heat exchanger
Water heat exchanger tube is airtight connection, and water heat exchanger tube system includes water circulation pipe, water circulation pipe be provided with hot water circuit pump installation and
Valve member, circulating picture-changing hot water passes through water circulation pipe fluid interchange between flue gas heat-exchange unit and air heat exchanger.
The energy-efficient air preheater of the utility model combined-type water heating agent is using compound multi-stage heat exchanger design, it is possible to achieve fill
Divide the purpose of effectively utilizes boiler or heating furnace tail flue gas waste heat, energy-saving effect is notable.
Brief description
Fig. 1 is the operation principle schematic diagram of the energy-efficient air preheater of the utility model combined-type water heating agent.
Wherein, 110 is low-temperature flue gas passage, and 120 is air duct, and 210 is flue gas heat-exchange unit, and 220 is air heat exchanger,
310 is water circulation pipe, and 320 is hot water circuit pump installation.
Specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in figure 1, the schematic diagram of the energy-efficient air preheater of the utility model combined-type water heating agent.Combined-type water heating agent is high
Effect energy-conservation air preheater includes high temperature section recuperative airheater and low-temperature zone hydrothermal medium air preheater, and high temperature section dividing wall type is empty
Air preheater includes low-temperature flue gas passage, the air duct being located on low-temperature flue gas passage, and low-temperature flue gas are from low-temperature flue gas passage
Entrance enter and discharge from the outlet of low-temperature flue gas passage after air passage wall first heat exchange, low-temperature zone water heat medium air preheat
Device includes being located at the flue gas heat-exchange unit of downstream portion occurring at above-mentioned heat exchange first in low-temperature flue gas passage, is located at air and leads to
Air heat exchanger in road, flue gas heat-exchange unit and air heat exchanger by water heat exchanger tube be airtight connect, water heat exchanger tube system includes
Water circulation pipe, water circulation pipe is provided with hot water circuit pump installation and valve member, and circulating picture-changing hot water passes through water circulation pipe
Fluid interchange between flue gas heat-exchange unit and air heat exchanger.This programme overcomes the defect of prior art, provides a kind of Compound Water
Heat medium energy-saving preheater, boiler or heating furnace afterbody low-temperature flue gas heat energy is taken out and is passed to by self compounding water heat medium system
Cryogenic air is simultaneously re-fed in stove it is achieved that abundant effectively utilizes boiler or heating furnace tail flue gas waste heat, thus reaching energy-conservation
Effect.
At present, the recovery of most of boilers or heating furnace tail flue gas waste heat still adopts single dividing wall type air preheat
Device.Contain SO due in flue gas2, therefore there is cold end corrosion situation in this type air preheater generally existing air intlet end, lead to leak out
Aggravation, the fault such as device damage, causes preheated air temperature low, furnace efficiency declines.In order to solve the above problems, this programme
It is additionally arranged dew-point temperature control device on the basis of basic scheme disclosed above, that is, water heat exchanger tube system also includes cycle heat exchange
Coolant-temperature gage adjusting means, it is higher than low-temperature flue gas passage that described cycle heat exchange coolant-temperature gage adjusting means controls the temperature of circulating picture-changing hot water
The interior dew-point temperature occurring at heat exchange first, thus controlling the moisture in surrounding air, the formation of suppression deep-etching material.
Further, in order that this temperature adjustment adapts to boiler or furnace fuel and load variations, strengthen the degree of intelligence controlling, this
Scheme also discloses intelligent temperature control scheme, and specifically water heat exchanger tube system also includes the intelligently control of cycle heat exchange coolant-temperature gage adjusting means
System processed, cycle heat exchange coolant-temperature gage adjusting means intelligence control system includes CPU, cycle heat exchange coolant-temperature gage is adjusted
Device control module, it is located at moisture measurement module at heat exchange first, barometric surveying module, temperature occur in low-temperature flue gas passage
Measurement module, CPU according to moisture measurement module and air pressure measurement module transmission humidity and pneumatic parameter obtain low
There is dew-point temperature T at heat exchange first, the temperature that CPU transmits according to temperature-measuring module in warm exhaust gases passes
The comparative result that parameter value is less than dew-point temperature T starts circulating picture-changing hot water by cycle heat exchange coolant-temperature gage adjusting means control module
Temperature-adjusting device, it is higher than dew-point temperature T that cycle heat exchange coolant-temperature gage adjusting means controls the temperature of circulating picture-changing hot water, thus controlling
Moisture in surrounding air, the formation of suppression deep-etching material.
Electrical equipment, circuit, module and the electronic devices and components being related in such scheme, in addition to special instruction, are realized according to it
Concrete function can select design generally in the art and scheme it is also possible to select according to actual needs other design and side
Case.
The flue gas heat-exchange unit of this programme and air heat exchanger all can be using the usual design in this area, such as curved tubes
Formula, bent-plate-type etc., as shown in figure 1, this programme employs curved tube formula heat, but heat exchanger is not limited to only exist one group
The scheme of curved tube, specifically flue gas heat-exchange unit include the heat exchange curved tube of some groups of mutually airtight connections, and heat exchange curved tube is in serpentine
The tortuous heat exchange pipeline extending.Air heat exchanger includes the heat exchange curved tube of some groups of mutually airtight connections, and heat exchange curved tube is to be in " S "
The tortuous heat exchange pipeline extending of shape.In the same manner, for strengthening the cycle heat exchange efficiency of circulating hot water, the hot water circuit pump installation of this programme
It is also not necessarily limited to the scheme only with a circulating pump, hot water circulation pump includes hot water circuit pump group, hot water circuit pump group
Including 2 hot water circulating pumps in parallel formed above, hot water circulating pump drives the cycle heat exchange water flowing in pipeline.Above improvement
Effectively increase the overall heat exchange efficiency of system.
This programme is combined the energy-efficient air preheater of water heat medium and includes high-temperature air preheater, flue gas heat-exchange unit, air heat-exchange
Device, hot water circulating pump, connection cigarette air channel and connecting line valve group, these parts are passed through to connect cigarette air channel and boiler or heating furnace
It is connected to form the energy-efficient preheater of a set of compound water heat medium.Energy-efficient preheater by high temperature section recuperative airheater and
Low-temperature zone hydrothermal medium air preheater is composited, and low-temperature zone hydrothermal medium air preheater has anti-corrosion regulatory function, anti-corrosion tune
Section function is to be realized on dew-point temperature so as to be maintained at by the water temperature adjusting its circulation heat medium water.Compound water heat medium
The heat exchanger of energy-efficient air preheater can be with more than one.The energy-efficient air preheater of compound water heat medium can adapt to boiler or heating
Stove fuel and load variations, by adjusting the circulating water temperature of itself heat medium water thus ensureing that system does not occur corrosion failure.Therefore,
The Compound Water heat medium energy-saving air preheater of this programme have efficiently, energy-conservation, the multi-efficiency such as anti-corrosion.Based on above feature, this programme
The energy-efficient air preheater of combined-type water heating agent compare existing single dividing wall type air preheater there is substantive distinguishing features and progress.
The energy-efficient air preheater of combined-type water heating agent of this programme is not limited to the content disclosed in specific embodiment, real
Applying the technical scheme occurring in example can be with individualism it is also possible to mutually comprise, and those skilled in the art combine according to this programme
The simple alternative that common knowledge is made falls within the scope of this programme.
Claims (6)
1. the energy-efficient air preheater of combined-type water heating agent, is characterized in that including high temperature section recuperative airheater and low-temperature zone water
Heating agent air preheater, described high temperature section recuperative airheater include low-temperature flue gas passage, be located at described low-temperature flue gas lead to
Air duct on road, low-temperature flue gas enter after the heat exchange first of described air passage wall from the entrance of described low-temperature flue gas passage
Discharge from the outlet of described low-temperature flue gas passage, described low-temperature zone hydrothermal medium air preheater includes being located at described low-temperature flue gas and leads to
The flue gas heat-exchange unit of the downstream portion at heat exchange first described in the generation in road, the air heat-exchange being located in described air duct
Device, described flue gas heat-exchange unit and described air heat exchanger by water heat exchanger tube be airtight connect, described water heat exchanger tube system includes water
Circulation line, described water circulation pipe is provided with hot water circuit pump installation and valve member, and circulating picture-changing hot water is followed by described water
The fluid interchange between described flue gas heat-exchange unit and described air heat exchanger of endless tube road.
2. the energy-efficient air preheater of combined-type water heating agent according to claim 1 is it is characterised in that described water heat exchanger tube system
Also include cycle heat exchange coolant-temperature gage adjusting means, described cycle heat exchange coolant-temperature gage adjusting means controls the temperature of described circulating picture-changing hot water
Degree is higher than the dew-point temperature at heat exchange first described in generation in described low-temperature flue gas passage.
3. the energy-efficient air preheater of combined-type water heating agent according to claim 2 is it is characterised in that described water heat exchanger tube system
Also include cycle heat exchange coolant-temperature gage adjusting means intelligence control system, described cycle heat exchange coolant-temperature gage adjusting means Based Intelligent Control system
System includes CPU, cycle heat exchange coolant-temperature gage adjusting means control module, is located at generation in described low-temperature flue gas passage
Moisture measurement module at described heat exchange first, barometric surveying module, temperature-measuring module, described CPU is according to institute
State moisture measurement module and the humidity of air pressure measurement module transmission and pneumatic parameter obtains occurring institute in described low-temperature flue gas passage
State dew-point temperature T at heat exchange first, the temperature parameter value that described CPU transmits according to described temperature-measuring module
Less than the comparative result of described dew-point temperature T, described circulation is started by described cycle heat exchange coolant-temperature gage adjusting means control module
Heat-exchanging water temperature-adjusting device, it is higher than described that described cycle heat exchange coolant-temperature gage adjusting means controls the temperature of described circulating picture-changing hot water
Dew-point temperature T.
4. the energy-efficient air preheater of combined-type water heating agent according to any one of claim 1 to 3 is it is characterised in that institute
State the heat exchange curved tube that flue gas heat-exchange unit includes some groups of mutually airtight connections, described heat exchange curved tube is extends tortuous in serpentine
Heat exchange pipeline.
5. the energy-efficient air preheater of combined-type water heating agent according to any one of claim 1 to 3 is it is characterised in that institute
State the heat exchange curved tube that air heat exchanger includes some groups of mutually airtight connections, described heat exchange curved tube is extends tortuous in serpentine
Heat exchange pipeline.
6. the energy-efficient air preheater of combined-type water heating agent according to any one of claim 1 to 3 is it is characterised in that institute
State hot water circuit pump installation and include hot water circuit pump group, described hot water circuit pump group includes 2 hot water in parallel formed above and follows
Ring pump, described hot water circulating pump drives the described cycle heat exchange water flowing in pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620895499.1U CN205939218U (en) | 2016-08-17 | 2016-08-17 | Energy -efficient air preheater of combined type hydrothermal matchmaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620895499.1U CN205939218U (en) | 2016-08-17 | 2016-08-17 | Energy -efficient air preheater of combined type hydrothermal matchmaker |
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| Publication Number | Publication Date |
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| CN205939218U true CN205939218U (en) | 2017-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620895499.1U Active CN205939218U (en) | 2016-08-17 | 2016-08-17 | Energy -efficient air preheater of combined type hydrothermal matchmaker |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965789A (en) * | 2017-12-28 | 2018-04-27 | 上海宁松热能环境工程有限公司 | A kind of water heat medium formula air preheater with SCR denitration |
-
2016
- 2016-08-17 CN CN201620895499.1U patent/CN205939218U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965789A (en) * | 2017-12-28 | 2018-04-27 | 上海宁松热能环境工程有限公司 | A kind of water heat medium formula air preheater with SCR denitration |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Jinhui town Fengxian District Shanghai city 201403 North Village four group B -28 Co-patentee after: Zhejiang ningsong thermal boiler equipment Co., Ltd Patentee after: Shanghai Ningsong Heat Energy Environment Engineering Co., Ltd. Address before: Jinhui town Fengxian District Shanghai city 201403 North Village four group B -28 Co-patentee before: Zhejiang better thermal energy boiler equipment Co., Ltd. Patentee before: Shanghai Ningsong Heat Energy Environment Engineering Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |