CN206347580U - A kind of flue gas heat recovery system - Google Patents
A kind of flue gas heat recovery system Download PDFInfo
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- CN206347580U CN206347580U CN201621441485.9U CN201621441485U CN206347580U CN 206347580 U CN206347580 U CN 206347580U CN 201621441485 U CN201621441485 U CN 201621441485U CN 206347580 U CN206347580 U CN 206347580U
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Abstract
The utility model discloses a kind of flue gas heat recovery system, including smoke heat replacing device, compressed air blowing cleaner, device for monitoring temperature.Flue gas heat recovery system described in the utility model, automatically controlled by full-range, make purified gas heating using smoke heat replacing device with qualified discharge, pending high-temperature flue gas heat release cooling is with subsequent treatment, effectively solve the problems, such as that the attachments such as dust hinder flue gas heat exchange using compressed air purging technology, by to flue gas, purified gas passes in and out the monitoring and controlling of temperature difference, realize digestibility and utilization inside gas energy, flue gas heat exchange continuous and effective is carried out, the automatic stabilisation operation of heat-exchanger rig, for energy-conserving and environment-protective in incineration flue gas processing procedure, efficiently utilize and open a new way, with clean energy-saving, intelligence is automatic, the advantage such as achieve noticeable achievement.
Description
Technical field
The utility model is related to incineration flue gas processing technology field, in particular it relates to a kind of flue gas heat recovery system.
Background technology
Burning is a kind of ancient traditional treatment method, in the garbage disposal of modern society, and burning method is still a kind of
Succinctly, important, effective option, after being handled due to rubbish with burning method, reduction is notable, in general, in-furnace temperature
Control is when higher than 850 DEG C, and the solid volume after burning compares can reduce 50%-80% originally, and the flammable rubbish of categorised collection
Rubbish after burning disposal the scale of construction even can reduce more than 90%, so from the point of view of, incineration save land used effect it is obvious.
Moreover, the high-temperature process of burning method, can also eliminate various pathogen, poisonous and harmful substance is converted into harmless non-poisonous material, so
Waste incineration method is all one of main method for the treatment of of urban garbage all the time.In modern rubbish technique, incinerator is first
When wherein, and incinerator is equipped with good smoke and dust purifier, can mitigate or even can solve the pollution to air substantially.But work as
In preceding garbage incineration process, there is also deficiency in the handling process of flue gas, such as incineration flue gas temperature is high, is unfavorable at purification
Reason；And the flue-gas temperature through processing is low, it is impossible to reach smoke directly ventilating requirement.Conventional incineration technique is big because containing in incineration flue gas
Dust and harmful smoke etc. are measured, heat exchanger surface is liable to stick to, heat exchange is hindered, so in conventional processes, front end cigarette
Gas generally realizes flue gas cool-down using a large amount of shower waters, and to processed flue gas then using a large amount of steam come heat temperature raising, such as
, there is serious thermal waste in this.Traditional processing method, has that effect is not good, energy consumption is higher, maintenance is frequent, dirty
The problems such as dye is big, improvement is not thorough.
Utility model content
The purpose of this utility model is to provide a kind of flue gas heat recovery system, to solve to propose in above-mentioned background technology
The problem of.
To achieve the above object, the utility model provides following technical scheme：
A kind of flue gas heat recovery system, including smoke heat replacing device, compressed air blowing cleaner, device for monitoring temperature；
The smoke heat replacing device includes finned heat exchanger, the finned heat exchanger be provided with to the cooling treatment channel of high-temperature flue gas,
To the heating treatment passage of low temperature purification gas, high-temperature flue gas enters the cooling treatment channel, low temperature purification gas through smoke inlet
Purified gas entrance enters heating treatment passage, and the cooling treatment channel and the heating treatment passage are arranged in a crossed manner, make height
After warm flue gas fully exchanges heat with low temperature purification gas at fin, the high-temperature flue gas after cooling is discharged from exhanst gas outlet, after heating
Purified gas is discharged from clean gas outlet；The compressed air blowing cleaner includes compressed air source, compressed air valve, the drop
Warm treatment channel is provided with compressed air inlet, and the compressed air is connected by compressed air valve with compressed air inlet；Institute
Stating device for monitoring temperature includes control circuit, and the control circuit is connected with compressed air valve circuit.So, high-temperature flue gas and
Purified gas exchanges heat in smoke heat replacing device, and high-temperature flue gas heat release cooling is so as to meet the low temperature needs of subsequent technique processing, only
Change aspiration heat heating and reach smoke directly ventilating standard, this process makes full use of the originally unnecessary heat supplement purified gas of high-temperature flue gas
The not enough heat required supplementation with, realizes that heat is exchanged complementary, it is not necessary to extra flue gas cool-down and purified gas heating device, favorably
In simplied system structure and energy-conserving and environment-protective.In order to solve the attachment of dust etc. in high-temperature flue gas and hinder heat exchange, here using pressure
Contracting air purging technology, by controlling circuit to control compressed air valve to be opened and closed, high-temperature flue gas is removed using compressed air purging
Attachment on passage, it is ensured that heat transfer effect it is continual and steady effectively.Here control circuit refers to comprising intelligent chip, storage
The intelligent control circuit of function, built-in related treatment procedures flow.
It is preferred that, the cooling treatment channel for it is multiple be arranged in parallel it is straight to pipeline, tired out with reducing the micronic dust in flue gas
Product, and beneficial to the effect for improving compressed air purging.
For the opportunity of control compressed air valve opening and closing, simple method is time-controlled by controlling circuit to take
Mode.Further to improve the specific aim that compressed air purging removes the attachment on high temperature flue, it is preferred that the temperature
Spending supervising device also includes temperature sensor, and the temperature sensor is electrically connected with control circuit.
In view of the harmonious and stability of high-temperature flue gas and purified gas gas flow, high-temperature flue gas entry, high-temperature flue gas
Outlet, purified gas entrance, clean gas outlet temperature difference are basicly stable, the main change shadows by heat transfer effect of change of temperature
Ring.It is preferred that, the temperature sensor is including the smoke inlet temperature sensor located at the smoke inlet, located at the flue gas
The flue gas exit temperature sensor of outlet, the smoke inlet temperature sensor, flue gas exit temperature sensor respectively with control
Circuit is electrically connected.The temperature of smoke inlet, exhanst gas outlet is entered by smoke inlet temperature sensor, flue gas exit temperature sensor
Row monitoring, the signal of monitoring is sent to control circuit and carries out analysis calculating by the two, and smoke inlet, the exhanst gas outlet temperature difference reduce,
Represent that heat transfer effect is poor, i.e., the attachment on high temperature flue is more, when temperature difference reduces to a certain extent, by control electricity
Road control compressed air valve is opened, and high temperature flue is purged using compressed air, recovers heat transfer effect.
Similarly, purified gas entrance, clean gas outlet temperature difference diminish, and also illustrate that heat transfer effect is poor, represent that high-temperature flue gas leads to
Attachment on road is excessive, and compressed air valve is opened, compressed air automatic blowing high temperature flue, recovers heat transfer effect.
Further, the temperature sensor is including the purified gas inlet temperature sensor located at the purified gas entrance, located at described
The clean gas outlet temperature sensor of clean gas outlet, the purified gas inlet temperature sensor, clean gas outlet TEMP
Device is electrically connected with control circuit respectively.By controlling circuit to be monitored purified gas entrance, the clean gas outlet temperature difference, so that more
Reliably the attachment on high temperature flue is purged.
Compared with prior art, the beneficial effects of the utility model are：Flue gas heat described in the utility model reclaims system
System, is automatically controlled by full-range, makes purified gas heating using smoke heat replacing device with qualified discharge, pending high-temperature flue gas
Heat release cooling effectively solves the problems, such as that the attachments such as dust hinder flue gas heat exchange with subsequent treatment using compressed air purging technology,
By passing in and out the monitoring and controlling of temperature difference to flue gas, purified gas, digestibility and utilization, flue gas heat exchange inside gas energy are realized lasting
Effectively carry out, the operation of the automatic stabilisation of heat-exchanger rig, be energy-conserving and environment-protective in incineration flue gas processing procedure, efficiently using opening one
Bar new way, with clean energy-saving, the advantage such as intelligence is automatic, achieve noticeable achievement.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment；
Fig. 2 is the annexation figure of the utility model embodiment device for monitoring temperature；
Wherein：1. finned heat exchanger, 2. cooling treatment channels, 3. heating treatment passages, 4. smoke inlets, 5. purified gas
Entrance, 6. exhanst gas outlets, 7. clean gas outlets, 8. compressed air sources, 9. compressed air valves, 10. compressed air inlets.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Shown in reference picture 1, Fig. 2, a kind of flue gas heat recovery system, including smoke heat replacing device, compressed air purging dress
Put, device for monitoring temperature；The smoke heat replacing device includes finned heat exchanger 1, and the finned heat exchanger is provided with to high temperature cigarette
The cooling treatment channel 2 of gas, the heating treatment passage 3 to low temperature purification gas, high-temperature flue gas enter the cooling through smoke inlet 4
Treatment channel 2, the purified gas entrance 5 of low temperature purification gas enters heating treatment passage 3, the cooling treatment channel 2 and the liter
Warm treatment channel 3 is arranged in a crossed manner, makes after high-temperature flue gas and low temperature purification gas fully exchanges heat at fin, the high-temperature flue gas after cooling
Discharged from exhanst gas outlet 6, the purified gas after heating is discharged from clean gas outlet 7；The compressed air blowing cleaner includes compression
Air-source 8, compressed air valve 9, the cooling treatment channel 2 are provided with compressed air inlet 10, and the compressed air passes through pressure
Contracting air door 9 is connected with compressed air inlet 10；The device for monitoring temperature includes control circuit, the control circuit and pressure
The circuit of contracting air door 9 is connected.So, high-temperature flue gas and purified gas exchange heat in smoke heat replacing device, high-temperature flue gas heat release drop
Temperature is so as to meet the low temperature needs of subsequent technique processing, and purified gas heat absorption heating reaches smoke directly ventilating standard, and this process is abundant
The not enough heat required supplementation with using the originally unnecessary heat supplement purified gas of high-temperature flue gas, is realized that heat exchanges complementary, is not required to
Extra flue gas cool-down and purified gas heating device are wanted, is conducive to simplied system structure and energy-conserving and environment-protective.In order to solve high temperature cigarette
The attachment of dust etc. and obstruction heat exchange in gas, here using compressed air purging technology, by controlling circuit to control compressed air
Valve 9 is opened and closed, and removes the attachment on high temperature flue using compressed air purging, it is ensured that the continuous and effective of heat transfer effect.
Here control circuit refers to include intelligent chip, store function, the intelligent control circuit of built-in related treatment procedures flow.
Here, the cooling treatment channel 2 for it is multiple be arranged in parallel it is straight to pipeline, tired out with reducing the micronic dust in flue gas
Product, and beneficial to the effect for improving compressed air purging.
Further to improve the specific aim that compressed air purging removes the attachment on high temperature flue, the temperature prison
Controlling device also includes temperature sensor, and the temperature sensor is electrically connected with control circuit.
In view of the harmonious and stability of high-temperature flue gas and purified gas gas flow, high-temperature flue gas entry 4, high-temperature flue gas
Outlet 6, purified gas entrance 5, the temperature difference of clean gas outlet 7 are basicly stable, and the change of temperature is mainly become by heat transfer effect
Change influence.The temperature sensor is including the high-temperature flue gas entry temperature sensor located at the high-temperature flue gas entry 4, located at institute
State the high-temperature flue gas outlet temperature sensor of high-temperature flue gas outlet 6, the temperature sensor of high-temperature flue gas entry 4, high-temperature flue gas
6 temperature sensors are exported to electrically connect with control circuit respectively.By the temperature sensor of high-temperature flue gas entry 4, the temperature of high-temperature flue gas outlet 6
Degree sensor is monitored to the temperature of smoke inlet 4, exhanst gas outlet 6, and the signal of monitoring is sent to control circuit by the two
Row analysis is calculated, and smoke inlet 4, the temperature difference of exhanst gas outlet 6 reduce, and is represented that heat transfer effect is deteriorated, i.e., is adhered on high temperature flue
Thing is more, when temperature difference is dropped to a certain degree, controls compressed air valve 9 to open by control circuit, utilizes compressed air pair
High temperature flue carries out purging cleaning, recovers heat transfer effect.
Further, the temperature sensor includes the TEMP of purified gas entrance 5 located at the purified gas entrance 5
Device, the temperature sensor of clean gas outlet 7 located at the clean gas outlet 7, the temperature sensor of purified gas entrance 5, purification
Gas exports 7 temperature sensors and electrically connected respectively with control circuit.By controlling circuit to purified gas entrance 5, the temperature of clean gas outlet 7
Difference is monitored, and purified gas entrance 5, the temperature difference of clean gas outlet 7 reduce, and represents that heat transfer effect is poor, i.e., on high temperature flue
Attachment is excessive, and compressed air valve 9 is opened, compressed air automatic blowing exhaust gases passes, recovers heat transfer effect.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out in the case where not departing from principle of the present utility model and spirit a variety of changes, repaiies
Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of flue gas heat recovery system, it is characterised in that including smoke heat replacing device, compressed air blowing cleaner, temperature
Supervising device；The smoke heat replacing device includes finned heat exchanger, and the finned heat exchanger is provided with the cooling to high-temperature flue gas
Treatment channel, the heating treatment passage to low temperature purification gas, high-temperature flue gas enter the cooling treatment channel through smoke inlet, low
The warm purified gas entrance of purified gas enters heating treatment passage, and the cooling treatment channel is intersected with the heating treatment passage to be set
Put, make after high-temperature flue gas and low temperature purification gas fully exchanges heat at fin, the high-temperature flue gas after cooling is discharged from exhanst gas outlet, is risen
Purified gas after temperature is discharged from clean gas outlet；The compressed air blowing cleaner includes compressed air source, compressed air valve,
The cooling treatment channel is provided with compressed air inlet, and the compressed air is connected by compressed air valve and compressed air inlet
Connect；The device for monitoring temperature includes control circuit, and the control circuit is connected with compressed air valve circuit.
2. flue gas heat recovery system according to claim 1, it is characterised in that the cooling treatment channel is multiple flat
It is straight to pipeline that row is set.
3. flue gas heat recovery system according to claim 1 or 2, it is characterised in that the device for monitoring temperature is also wrapped
Temperature sensor is included, the temperature sensor is electrically connected with control circuit.
4. flue gas heat recovery system according to claim 3, it is characterised in that the temperature sensor includes being located at institute
The smoke inlet temperature sensor of high-temperature flue gas entry, the flue gas exit temperature sensor located at the high-temperature flue gas outlet are stated,
The smoke inlet temperature sensor, flue gas exit temperature sensor are electrically connected with control circuit respectively.
5. flue gas heat recovery system according to claim 4, it is characterised in that the temperature sensor includes being located at institute
The purified gas inlet temperature sensor for stating low temperature purification gas entrance, the clean gas outlet temperature exported located at the low temperature purification gas
Sensor, the purified gas inlet temperature sensor, clean gas outlet temperature sensor are electrically connected with control circuit respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621441485.9U CN206347580U (en) | 2016-12-27 | 2016-12-27 | A kind of flue gas heat recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621441485.9U CN206347580U (en) | 2016-12-27 | 2016-12-27 | A kind of flue gas heat recovery system |
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| Publication Number | Publication Date |
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| CN206347580U true CN206347580U (en) | 2017-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621441485.9U Active CN206347580U (en) | 2016-12-27 | 2016-12-27 | A kind of flue gas heat recovery system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107764104A (en) * | 2017-10-27 | 2018-03-06 | 山东佩森环保科技股份有限公司 | A kind of new type heat exchanger of scrubbing tower |
-
2016
- 2016-12-27 CN CN201621441485.9U patent/CN206347580U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107764104A (en) * | 2017-10-27 | 2018-03-06 | 山东佩森环保科技股份有限公司 | A kind of new type heat exchanger of scrubbing tower |
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