CN205746946U - A kind of boiler and flue gas waste heat recovery system thereof - Google Patents
A kind of boiler and flue gas waste heat recovery system thereof Download PDFInfo
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- CN205746946U CN205746946U CN201620601361.6U CN201620601361U CN205746946U CN 205746946 U CN205746946 U CN 205746946U CN 201620601361 U CN201620601361 U CN 201620601361U CN 205746946 U CN205746946 U CN 205746946U
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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
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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Abstract
This utility model discloses the flue gas waste heat recovery system of a kind of boiler, including water pump, heat consumption mechanism and be arranged in back-end ductwork, for the gas cooler that the heat in flue gas is transferred in circulation of fluid, described water pump, heat consumption mechanism form loop with gas cooler.Flue gas waste heat recovery system disclosed in the utility model, transfers in circulation of fluid by gas cooler by the heat in the flue gas in back-end ductwork so that the temperature of flue gas is greatly reduced, and makes the temperature of circulation of fluid be raised simultaneously；When circulation of fluid is by heat consumption mechanism, its heat will be consumed by absorption, its temperature reduces again, circulate the most and so forth, constantly transfer to the heat of flue gas heat consumption mechanism consumes, the temperature of the flue gas that will discharge is greatly reduced, the heat of flue gas is recycled simultaneously, improve the capacity usage ratio of boiler.This utility model is also disclosed a kind of boiler including above-mentioned flue gas waste heat recovery system, and its beneficial effect is described above.
Description
Technical field
This utility model relates to mechanical industry and technical field of heat dissipation, particularly to the flue gas waste heat recovery system of a kind of boiler
System.This utility model further relates to a kind of boiler including above-mentioned flue gas waste heat recovery system.
Background technology
Along with the development of China's mechanical industry, increasing large factory is manufactured equipment and is the most extensively made
With.
In the manufacturing enterprise relating to smelting, manufacture, process technology, often build and have a large amount of coal-fired high-temperature service, such as
Boiler and smelting furnace etc..As a example by boiler, boiler is a kind of energy conversion, and the energy to boiler input has the chemistry in fuel
Energy, electric energy, boiler output has the steam of certain heat energy, high-temperature water or organic heat carrier.The hot water produced in boiler or steam
Directly can provide required heat energy for commercial production and people's lives, it is possible to be converted to mechanical energy by Steam Power Equipment, or again
Electric energy is converted mechanical energy into by electromotor.
Can produce high temperature aborning due to boiler, the fossil fuels such as coal also can produce a large amount of cigarette when burning simultaneously
Gas, in order to discharge flue gas in time, is provided with flue on boiler.And it is referred to as back-end ductwork at the end of flue, the cigarette in boiler
Gas is directly discharged to the external world from back-end ductwork.
But, due to back-end ductwork and external environment closest to, therefore back-end ductwork is in boiler internal high-temperature flue gas
And between external environment Cryogenic air, its temperature difference is relatively big, is easily subject to the effect expanded with heat and contract with cold so that material degeneration；Meanwhile, tail
Flue gas in portion's flue still has higher temperature, is vented directly to the external world and will cause the waste of energy, is also unfavorable for energy-conservation
Reduce discharging.
Therefore, how to reduce the flue-gas temperature in back-end ductwork, improve the capacity usage ratio of boiler simultaneously, be this area skill
The technical problem that art personnel are urgently to be resolved hurrily.
Utility model content
The purpose of this utility model is to provide the flue gas waste heat recovery system of a kind of boiler, it is possible to effectively reduce back-end ductwork
In flue-gas temperature, improve the capacity usage ratio of boiler simultaneously.Another object of the present utility model is to provide one and includes above-mentioned
The boiler of flue gas waste heat recovery system.
For solve above-mentioned technical problem, this utility model provide a kind of boiler flue gas waste heat recovery system, including water pump,
Heat consumption mechanism and being arranged in back-end ductwork, for the gas cooler that the heat in flue gas is transferred in circulation of fluid, institute
State water pump, heat consumption mechanism forms loop with gas cooler.
Preferably, the water inlet of described gas cooler is provided with the entrance for controlling circulation of fluid single influx
Header, and the water outlet of described gas cooler is provided with the outlet header for controlling circulation of fluid single discharge.
Preferably, described heat consumption mechanism is condensation water heater, is provided with many for circulation in described condensation water heater
Be provided with in the tubulation that fluid passes through, and described condensation water heater for condense water pass through and make its on the way with each described tubulation
The condensation water cavity contacted.
Preferably, described condensation water heater is connected in parallel on condensation water sprue, and arranges on described condensation water sprue
There is the bypass valve condensed in water cavity flowing into described condensation water heater for controlling internal condensate water.
Preferably, the water inlet condensing water cavity of described condensation water heater is provided with for controlling condensation water influx
Import divide water regulating valve, and its water outlet is provided with and divides water regulating valve for the outlet controlling to condense current output.
Preferably, described condensation water sprue is additionally provided with the low pressure preheated for its inside condenses water to add
Hot device.
This utility model also provides for a kind of boiler, including body of heater and the flue gas waste heat recovery system being arranged on described body of heater
System, wherein, described flue gas waste heat recovery system is the flue gas waste heat recovery system described in any of the above-described item.
The flue gas waste heat recovery system of boiler provided by the utility model, mainly includes water pump, heat consumption mechanism and flue gas
Cooler, this three is sequentially communicated, and forms hydraulic circuit.Wherein, water pump is mainly used in the circulation of fluid (ratio for flowing in loop
Such as water or oil etc.) power is provided so that it is in system pipeline, it is circulated flowing.Heat consumption mechanism is for consuming amount of heat, energy
Mechanism, typically can carry out doing work or carrying out heat transfer etc. with consumption of calorie, in an advantageous embodiment, this heat consumption mechanism leads to
Cross consumption amount of heat and carry out heat transfer, the heat of fluid higher for temperature is delivered on the fluid that temperature is relatively low.Water pump and
Heat consumption mechanism is typically all disposed within the outside of back-end ductwork, and gas cooler is arranged in back-end ductwork, and it primarily serves the purpose of
By the heat absorption in the flue gas in back-end ductwork, transfer it in pipeline in the circulation of fluid of flowing so that will
The temperature of flue gas discharged is greatly reduced, make the temperature of circulation of fluid be raised simultaneously and temperature raise after circulation
Fluid is by heat consumption mechanism when, and its heat will be absorbed, consumes, and the temperature of such circulation of fluid reduces again, afterwards
Reciprocation cycle, constantly transfers to the heat of the flue gas in back-end ductwork consume in heat consumption mechanism.So, this utility model
The flue gas waste heat recovery system provided, by forming the water pump of hydraulic circuit, heat consumption mechanism and gas cooler, continuous land productivity
Transfer to heat consumption mechanism consumes by the heat of the flue gas in back-end ductwork by the circulation of fluid circulated, thus significantly
The temperature of the flue gas that reduction will be discharged, recycles the heat of flue gas simultaneously, improves the capacity usage ratio of boiler.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, the accompanying drawing in describing below is only
It is embodiment of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawing can be obtained according to the accompanying drawing provided.
Fig. 1 is the overall structure schematic diagram of a kind of detailed description of the invention provided by the utility model.
Wherein, in Fig. 1:
Back-end ductwork 1, water pump 2, gas cooler 3, entrance header 4, outlet header 5, condense water heating
Device 6, bypass valve 7, import divides water regulating valve 8, outlet point water regulating valve 9, low-pressure heater 10.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under making creative work premise
The every other embodiment obtained, broadly falls into the scope of this utility model protection.
Refer to the overall structure schematic diagram that Fig. 1, Fig. 1 are a kind of detailed description of the invention provided by the utility model.
In a kind of detailed description of the invention provided by the utility model, the flue gas waste heat recovery system of boiler mainly includes
Water pump 2, heat consumption mechanism and gas cooler 3, and this three is sequentially communicated, and forms hydraulic circuit.
Wherein, water pump 2 is power part, is mainly used in circulation of fluid (such as water or oil for the flowing in hydraulic circuit
Deng) power is provided so that it is in hydraulic circuit, it is circulated flowing.
Heat consumption mechanism is to consume amount of heat or the mechanism of energy, such as can carry out doing work or carry out heat biography with consumption of calorie
Pass (heat exchange) etc..General, heat consumption mechanism itself does not produce heat, and therefore its heat consumed can only derive from hydraulic circuit
In circulation of fluid, i.e. heat consumption mechanism can draw heat utilize when circulation of fluid flow through self from circulation of fluid,
Concrete discussion about heat consumption mechanism will be launched in subsequent content.
Gas cooler 3 is mainly used in cooling down the flue gas in back-end ductwork 1, is the most typically directly arranged on afterbody
In flue 1, relative, it is outside that water pump 2 and heat consumption mechanism typically may be provided at back-end ductwork 1.Concrete, this gas cooler 3
Cooling effect to flue gas derives from the circulation of fluid of flowing, due to the temperature of circulation of fluid relatively low (or being room temperature), and afterbody
Flue gas in flue 1 but carries amount of heat, and its temperature is higher, and therefore when circulation of fluid, to flow to flue gas in hydraulic circuit cold
But time in device 3, by with flue gas under the effect of conduction of heat or thermal convection current, produce heat exchange, visual effect is circulation of fluid
From flue gas, partial heat has been drawn during flowing in gas cooler 3.So that the temperature of flue gas reduces, make to follow simultaneously
The temperature of circulation body raises, and ideally, both temperature are the most equal.
After this, flue gas absorbs the circulation of fluid of amount of heat, will flow out from gas cooler 3 and continue
Flowing it is circulated in hydraulic circuit.And when it flow to heat consumption mechanism, heat consumption mechanism i.e. continues heat from circulation of fluid
Amount is for externally acting or again carries out heat exchange etc., in any case, the heat drawn from flue gas obtained again with.
The temperature of circulation of fluid reduces again afterwards, and simultaneously under the pump action of water pump 2, circulation of fluid continues to flow in hydraulic circuit
Dynamic, and when it continues to flow to gas cooler 3, continuation is repeated said process, the heat that constantly will carry in flue gas
Recycle.
In sum, flue gas waste heat recovery system provided by the utility model, by formed hydraulic circuit water pump 2,
Heat consumption mechanism and gas cooler 3, constantly utilize the circulation of fluid circulated to be turned by the heat of the flue gas in back-end ductwork 1
Move on to heat consumption mechanism consumes, thus the temperature of the flue gas that will discharge is greatly reduced, the heat of flue gas is carried out simultaneously
Recycle, improve the capacity usage ratio of boiler.
Additionally, in order to ensure the heat that circulation of fluid can absorb in flue gas after entering gas cooler 3 fully, carry
The high cooling-down effect to flue gas, the present embodiment is provided with for controlling circulation of fluid single in the water inlet of gas cooler 3
The entrance header 4 of influx, the most also water outlet at gas cooler 3 are provided with for controlling the outflow of circulation of fluid single
The outlet header 5 of amount.Being arranged such, operator or hydraulic control system i.e. can be according to actual flue-gas temperature value, flue gases
The flow of expection reduction temperature value and circulation of fluid regulates aperture size and the make-and-break time of entrance header 4.It also is able to simultaneously
The energy consumption size of the actual absorption heat according to circulation of fluid and heat consumption mechanism regulates aperture size and the break-make of outlet header 5
Time.The co-controlling effect to circulation of fluid thus by entrance header 4 and outlet header 5, make a concerted effort, efficiently reclaim, profit
With the heat of flue gas, it is to avoid cause the waste of energy.
About in a kind of preferred implementation of heat consumption mechanism, this heat consumption mechanism can be condensation water heater 6.Turn round and look at name
Thinking justice, this condensation water heater 6 is mainly used in heating for the condensation water in boiler.The lowest owing to condensing the temperature of water, heat
Consumption mechanism i.e. can utilize the heat in flue gas again to carry out heat exchange, transfers heat to condense waterborne.Concrete, coagulate at this
Being provided with many tubulations in bearing water heater 6, these tubulations are used to make circulation of fluid pass through, such as from condensation water heater 6
One end flow there through its other end.It is additionally provided with for condensing the condensation water cavity that water passes through inside this condensation water heater 6 simultaneously,
Be arranged such, temperature the lowest condense water in the internal flow of condensation water heater 6, drawn the circulation of fluid of heat also simultaneously
Tubulation within condensation water heater 6 flows, naturally-occurring heat transfer when both meet so that condense in the temperature of water
Rise, make the temperature of circulation of fluid be declined simultaneously.So, the heat reclaimed in circulation of fluid has just obtained effective utilization.
Additionally, also condensation water heater 6 can be connected in parallel on condensation water sprue, condensing setting on water sprue simultaneously
For controlling to condense the bypass valve 7 of current direction.Such as, when bypass valve 7 cuts out, condense water and all flow to condensation water heater 6
Heat, flow out again after absorbing heat.And when bypass valve 7 is opened, condense water then part and be flowed into condensation water heater 6
In, another part condenses water and then flows still along sprue.With this ordinatedly, it is also possible to coagulating at condensation water heater 6
Bear water the import that the water inlet in chamber is provided for controlling to condense water influx and divide water regulating valve 8, simultaneously at condensation water heater 6
Condense water cavity water outlet be provided for control condense current output outlet divide water regulating valve 9.It is arranged such, works as bypass
When valve 7 is opened, turn off import and divide water regulating valve 8, can make to condense water and flow completely along sprue, be no longer pass through condensing
The heating of water heater 6.And when bypass valve 7 cuts out, now can operate import divides water regulating valve 8, control to enter into condensation
The flow condensing water in water heater 6, it is to avoid because condensing water flow is excessive or too small causes heats undesirable or hot
The consequence that amount is wasted.Outlet point water regulating valve 9 can also be operated simultaneously, control the condensation flowed out from condensation water heater 6
The flow of water, it is to avoid because condensing water flow is excessive or too small causes long or too small consequence heat time heating time.Certainly, condense water to add
Hot device 6 can also be connected in condensation water sprue.
It addition, this utility model is also condensing the low-pressure heating being provided with on water sprue for preheating condensation water
Device 10, is arranged such, when when bypass valve 7 is opened, import divides water regulating valve 8 to close, it is not necessary to the heating of condensation water heater 6 is made
Suitably heated with condensation water also can be made.Meanwhile, when bypass valve 7 cuts out, partial coagulation water is entering into condensation water heating
First pass around the preheating of low-pressure heater 10 before device 6, the burden of condensation water heater 6 can have been reduced to a certain extent,
The shortage of heat drawn because of circulation of fluid is avoided to cause the heats to condensation water to be not desired to the consequence of reason.
This utility model also provides for a kind of boiler, including body of heater and the flue gas waste heat recovery system being arranged on body of heater, its
In, this flue gas waste heat recovery system is identical with foregoing teachings, and here is omitted.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses this practicality new
Type.Multiple amendment to these embodiments will be apparent from for those skilled in the art, is determined herein
The General Principle of justice can realize in the case of without departing from spirit or scope of the present utility model in other embodiments.Cause
This, this utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (7)
1. the flue gas waste heat recovery system of a boiler, it is characterised in that include water pump (2), heat consumption mechanism and be arranged at afterbody
In flue (1), for the heat in flue gas being transferred to the gas cooler (3) in circulation of fluid, described water pump (2), heat consumption
Mechanism forms loop with gas cooler (3).
Flue gas waste heat recovery system the most according to claim 1, it is characterised in that the water inlet of described gas cooler (3)
The entrance header (4) for controlling circulation of fluid single influx, and the outlet of described gas cooler (3) it is provided with at Kou
Place is provided with the outlet header (5) for controlling circulation of fluid single discharge.
Flue gas waste heat recovery system the most according to claim 2, it is characterised in that described heat consumption mechanism is for condensing water heating
Device (6), is provided with the many tubulations passed through for circulation of fluid, and described condensation water heater in described condensation water heater (6)
(6) it is provided with in and passes through and make its condensation water cavity on the way contacted with each described tubulation for condensation water.
Flue gas waste heat recovery system the most according to claim 3, it is characterised in that described condensation water heater (6) is in parallel
Condensing on water sprue, and be provided with on described condensation water sprue and flow into described condensation water and add for controlling internal condensate water
The bypass valve (7) condensed in water cavity of hot device (6).
Flue gas waste heat recovery system the most according to claim 4, it is characterised in that coagulating of described condensation water heater (6)
Bear water the water inlet in chamber to be provided with and divide water regulating valve (8) for the import controlling to condense water influx, and its water outlet sets
It is equipped with and divides water regulating valve (9) for the outlet controlling to condense current output.
Flue gas waste heat recovery system the most according to claim 5, it is characterised in that also set up on described condensation water sprue
Have for its inside being condensed the low-pressure heater (10) that water preheats.
7. a boiler, including body of heater and the flue gas waste heat recovery system being arranged on described body of heater, it is characterised in that described cigarette
Gas residual neat recovering system is the flue gas waste heat recovery system described in any one of claim 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620601361.6U CN205746946U (en) | 2016-06-17 | 2016-06-17 | A kind of boiler and flue gas waste heat recovery system thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620601361.6U CN205746946U (en) | 2016-06-17 | 2016-06-17 | A kind of boiler and flue gas waste heat recovery system thereof |
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| CN205746946U true CN205746946U (en) | 2016-11-30 |
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| CN201620601361.6U Active CN205746946U (en) | 2016-06-17 | 2016-06-17 | A kind of boiler and flue gas waste heat recovery system thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106765157A (en) * | 2017-03-14 | 2017-05-31 | 鑫源昊（浙江）环保能源科技有限公司 | A kind of magnetization cracking device with rabbling mechanism |
| CN107051153A (en) * | 2017-03-14 | 2017-08-18 | 鑫源昊（浙江）环保能源科技有限公司 | A kind of exhaust gas processing device suitable for magnetization cracking |
| CN107101205A (en) * | 2017-04-26 | 2017-08-29 | 鑫源昊（浙江）环保能源科技有限公司 | A kind of magnetization cracking device with exhaust gas processing device |
-
2016
- 2016-06-17 CN CN201620601361.6U patent/CN205746946U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106765157A (en) * | 2017-03-14 | 2017-05-31 | 鑫源昊（浙江）环保能源科技有限公司 | A kind of magnetization cracking device with rabbling mechanism |
| CN107051153A (en) * | 2017-03-14 | 2017-08-18 | 鑫源昊（浙江）环保能源科技有限公司 | A kind of exhaust gas processing device suitable for magnetization cracking |
| CN107101205A (en) * | 2017-04-26 | 2017-08-29 | 鑫源昊（浙江）环保能源科技有限公司 | A kind of magnetization cracking device with exhaust gas processing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 101300 Jinma Industrial Zone 94, Gaoliying Town, Shunyi District, Beijing Patentee after: Kingeta Group Co.,Ltd. Address before: 100000 Zhengjia Building, 7 Jianguo Road, Chaoyang District, Beijing Patentee before: BEIJING KINGTECH CO.,LTD. |
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| CP03 | Change of name, title or address |