CN214791179U - Tail gas treatment and waste heat recovery device - Google Patents
Tail gas treatment and waste heat recovery device Download PDFInfo
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- CN214791179U CN214791179U CN202120617667.1U CN202120617667U CN214791179U CN 214791179 U CN214791179 U CN 214791179U CN 202120617667 U CN202120617667 U CN 202120617667U CN 214791179 U CN214791179 U CN 214791179U
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- 239000007789 gas Substances 0.000 title claims abstract description 123
- 239000002918 waste heat Substances 0.000 title claims abstract description 22
- 238000011084 recovery Methods 0.000 title claims abstract description 21
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000003546 flue gas Substances 0.000 claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 19
- 230000000712 assembly Effects 0.000 claims description 11
- 238000000429 assembly Methods 0.000 claims description 11
- 238000002485 combustion reaction Methods 0.000 claims description 9
- 239000003345 natural gas Substances 0.000 claims description 9
- 238000004321 preservation Methods 0.000 claims description 9
- 239000000779 smoke Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 6
- 238000012546 transfer Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000002920 hazardous waste Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- -1 methane hydrocarbons Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000006864 oxidative decomposition reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
The utility model discloses a tail gas treatment and waste heat recovery device, which comprises an incineration device, a tail gas heat exchange device and a fresh air heat exchange device, wherein the outlet of the incineration device is communicated with a hot gas channel of the tail gas heat exchange device and a hot gas channel of the fresh air heat exchange device through a flue gas channel, and the tail end of the flue gas channel is communicated with a chimney through an exhaust fan; the outlet of the tail gas channel of the tail gas heat exchange device is communicated with the inlet of the incineration device, and the inlet of the tail gas channel of the tail gas heat exchange device is provided with a tail gas fan for supplying tail gas; the fresh air channel outlet of the fresh air heat exchange device is communicated with the production equipment, and the fresh air channel inlet of the fresh air heat exchange device is provided with a fresh air fan for supplying fresh air. The utility model discloses equipment is simple, the small investment, and energy utilization is rateed highly, and energy-conserving effect is showing.
Description
Technical Field
The utility model relates to a this combustible organic flue gas emission and tail gas control field especially relate to a tail gas treatment and waste heat recovery utilize device.
Background
In the production process of the flexible rubber and plastic foaming product, the raw materials can generate organic tail gas under the influence of high-temperature processing, the traditional tail gas treatment method is realized by a condensation-high-voltage electric field purification and separation technology, but the technology can not only waste the heat generated after tail gas is condensed in a condensation link, but also increase the water and electricity running consumption and increase the treatment cost, the difficulty of standard emission treatment is particularly increased under the unstable states of the smoke concentration and the generation rate, the substance components generated by condensation and ionization are complex, the stability of the recycled product is not easy to control, and if the hazardous waste treatment cost is too high.
In recent years, the tail gas incineration treatment technology mainly burns organic tail gas at a combustible temperature state by burning natural gas to raise the temperature, and although the tail gas can reach the emission standard, the problems that the natural gas consumption is increased due to the fact that cracking and temperature rise of an oxidation chamber cannot be fully utilized, the environment is affected due to overhigh emission temperature of smoke heat, and the heat cannot be recycled exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a tail gas treatment and waste heat recovery utilize device solves too high influence environment of flue gas heat emission temperature and heat can not recycle the problem that leads to the wasting of resources.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model relates to a tail gas treatment and waste heat recovery device, which comprises an incineration device, a tail gas heat exchange device and a fresh air heat exchange device, wherein the outlet of the incineration device is communicated with a hot gas channel of the tail gas heat exchange device and a hot gas channel of the fresh air heat exchange device through a flue gas channel, and the tail end of the flue gas channel is communicated with a chimney through an exhaust fan; the outlet of the tail gas channel of the tail gas heat exchange device is communicated with the inlet of the incineration device, and the inlet of the tail gas channel of the tail gas heat exchange device is provided with a tail gas fan for supplying tail gas; the fresh air channel outlet of the fresh air heat exchange device is communicated with production equipment, and the fresh air channel inlet of the fresh air heat exchange device is provided with a fresh air fan for supplying fresh air.
Furthermore, each communicating pipeline is provided with a control valve for controlling medium flowing therein and a safety valve for detecting pipeline pressure, and the communicating pipeline comprises the smoke channel, the hot gas channel, the tail gas channel and the fresh air channel.
Furthermore, the tail gas heat exchange device and the fresh air heat exchange device are both composed of a plurality of heat exchange assemblies communicated with each other, and realize gradual heat exchange, and each heat exchange assembly is composed of at least two heat exchangers communicated with each other.
Furthermore, the tail gas heat exchange device comprises a first tail gas heat exchange assembly, a second tail gas heat exchange assembly and a third tail gas heat exchange assembly which are sequentially communicated, the first tail gas heat exchange assembly is installed at one side far away from the burning device and conducts low-temperature heat exchange, the second tail gas heat exchange assembly is installed at the middle position and conducts medium-low temperature heat exchange, and the third tail gas heat exchange assembly is installed at one side close to the burning device and conducts high-temperature heat exchange.
Furthermore, the fresh air heat exchange device comprises a first fresh air heat exchange assembly and a second fresh air heat exchange assembly which are communicated, the first fresh air heat exchange assembly is installed on one side far away from the incineration device and conducts low-temperature heat exchange, and the second fresh air heat exchange assembly is installed on one side close to the incineration device and conducts high-temperature heat exchange.
Furthermore, the heat exchangers of the heat exchange assembly all adopt plate-tube type heat exchange elements.
Further, the heat exchanger of the first tail gas heat exchange assembly adopts a heat exchange element combining a tube type and a plate tube type.
Furthermore, an air filter is arranged at an air inlet of the fresh air fan.
Furthermore, the burning device comprises a burning furnace and a burner, wherein the burner is installed on one side of the burning furnace and is communicated with a natural gas pipeline, and a combustion fan is further arranged on one side of the burner.
Furthermore, the communicating pipelines are all provided with heat preservation devices, and the heat preservation devices are wrapped or wrapped heat preservation layers.
Compared with the prior art, the utility model discloses a beneficial technological effect:
the utility model discloses a heat transfer device greatly improves low temperature and waits to burn the heat exchange efficiency between tail gas and high temperature flue gas, waits to burn tail gas for low temperature and preheats, improves it and burns the temperature, helps fully burn tail gas, and the temperature when effectively reducing high temperature fume emission simultaneously realizes discharge to reach standard, does not produce secondary pollution.
The utility model discloses the heat of recovery can supply with rubber and plastic foaming equipment and heat up, and the using electricity wisely consumes to further improve energy utilization rate.
Through experimental examination, the treated smoke content achieves the effect: total non-methane hydrocarbons less than or equal to 10mg/m3The particle is less than or equal to 10 mg/m.
To sum up, the utility model discloses equipment is simple, and the small investment, energy utilization is high, and energy-conserving effect is showing.
Drawings
The present invention will be further explained with reference to the following description of the drawings.
Fig. 1 is a schematic structural view of the tail gas treatment and waste heat recovery device of the present invention;
FIG. 2 is a schematic structural view of the tail gas heat exchange assembly of the present invention;
FIG. 3 is a schematic structural view of the fresh air heat exchange assembly of the present invention;
description of reference numerals: 1. an incineration device; 101. an incinerator; 102. a combustion engine; 103. a natural gas pipeline; 104. a combustion fan; 2. a tail gas heat exchange device; 201. a first tail gas heat exchange assembly; 202. a second tail gas heat exchange assembly; 203. a third tail gas heat exchange assembly; 3. a fresh air heat exchange device; 301. a first fresh air heat exchange assembly; 302. the second fresh air heat exchange assembly; 4. a flue gas channel; 5. an exhaust fan; 6. a chimney; 7. a tail gas fan; 8. a fresh air fan; 9. an air filter.
Detailed Description
As shown in fig. 1, a tail gas treatment and waste heat recovery device comprises an incineration device 1, a tail gas heat exchange device 2 and a fresh air heat exchange device 3, wherein an outlet of the incineration device 1 is communicated with a hot gas channel of the tail gas heat exchange device 2 and a hot gas channel of the fresh air heat exchange device 3 through a flue gas channel 4, and the tail end of the flue gas channel 4 is communicated with a chimney 6 through an exhaust fan 5; the outlet of the tail gas channel of the tail gas heat exchange device 2 is communicated with the inlet of the incineration device 1, and the inlet of the tail gas channel of the tail gas heat exchange device 2 is provided with a tail gas fan 7 for supplying tail gas; the fresh air channel outlet of the fresh air heat exchange device 3 is communicated with the production equipment, and the fresh air channel inlet of the fresh air heat exchange device 3 is provided with a fresh air fan 8 for supplying fresh air.
This embodiment on the one hand greatly improves the low temperature through heat transfer device and waits to burn heat exchange efficiency between tail gas and high temperature flue gas, waits to burn tail gas for the low temperature and preheats, improves its temperature of burning, helps fully burn tail gas, and the temperature when effectively reducing high temperature fume emission simultaneously realizes discharge to reach standard, does not produce secondary pollution, and on the other hand adopts waste heat recovery to supply the plant use, and the gas consumption is used in the saving to further improve energy utilization.
Each communicating pipeline is provided with a control valve for controlling medium flowing therein and a safety valve for detecting pipeline pressure, and each communicating pipeline comprises a flue gas channel 4, a hot gas channel, a tail gas channel and a fresh air channel.
The control valve of this embodiment is convenient for not shutting down the maintenance, can detect gas pressure simultaneously, and the safe operation of guarantee equipment.
Referring to fig. 1, the tail gas heat exchange device 2 and the fresh air heat exchange device 3 are both composed of a plurality of heat exchange assemblies communicated with each other and realize gradual heat exchange, and each heat exchange assembly is composed of at least two heat exchangers communicated with each other.
Referring to fig. 2, the tail gas heat exchange device 2 comprises a first tail gas heat exchange assembly 201, a second tail gas heat exchange assembly 202 and a third tail gas heat exchange assembly 203 which are sequentially communicated, the first tail gas heat exchange assembly 201 is installed on one side far away from the incineration device 1 and performs low-temperature heat exchange, the second tail gas heat exchange assembly 202 is installed at the middle position and performs medium-low temperature heat exchange, and the third tail gas heat exchange assembly 203 is installed on one side close to the incineration device 1 and performs high-temperature heat exchange.
Referring to fig. 3, the fresh air heat exchange device 3 includes a first fresh air heat exchange assembly 301 and a second fresh air heat exchange assembly 302 which are communicated with each other, the first fresh air heat exchange assembly 301 is installed at one side far away from the incineration device 1 and performs low temperature heat exchange, and the second fresh air heat exchange assembly 302 is installed at one side near the incineration device 1 and performs high temperature heat exchange. Air filter 9 is arranged at the air inlet of the fresh air fan 8, and the cleanness degree of fresh air is effectively guaranteed.
This embodiment adopts the mode of a plurality of heat exchange assemblies series connection step by step to carry out the heat transfer step by step, and heat exchange assembly is connected by at least two heat exchangers and is formed, simple structure, and area in the place's limitation is broken through in the modularized design, can increase or reduce heat exchange assembly's quantity at will because of the change of concrete use scene, and simple to operate is swift, can realize the heating of rising temperature step by step simultaneously to improve heating efficiency greatly.
Specifically, the heat exchanger of the heat exchange assembly adopts plate-tube type heat exchange elements, so that the heat exchange area is large, the resistance is small, the strength is high, and the heat exchange efficiency is high. The heat exchanger of the first tail gas heat exchange assembly 201 adopts a heat exchange element combining a tube type heat exchange element and a plate tube type heat exchange element, namely, half of the inside of the heat exchanger uses the tube type heat exchange element, and half uses the plate tube type heat exchange element.
This embodiment tubular structure's heat exchange element circulation resistance is little, can accelerate the velocity of flow, and plate structure's heat exchange element heat exchange area is big, compares with the heat exchanger with the volume, and the heat exchanger that tubular and plate and tube combination has increased exchange area, has reduced gaseous circulation resistance.
Referring to fig. 1, the incinerator 1 includes an incinerator 101 and a burner 102, the burner 102 is installed at one side of the incinerator 101, the burner 102 is communicated with a natural gas pipeline 103, and a combustion fan 104 is further installed at one side of the burner 102.
The embodiment makes harmful components in the tail gas fully cracked, uses natural gas (or other clean energy) to avoid secondary pollution, and effectively improves the combustion capacity and effect and saves energy through the combustion fan.
Referring to fig. 1, the communicating pipelines are all provided with heat preservation devices, and the heat preservation devices are wrapped or wrapped heat preservation layers.
The heat preservation in this embodiment can reduce the heat loss, the energy saving.
The working process of the utility model is as follows:
first, refer to fig. 2, the utility model discloses a first embodiment tail gas treatment, low temperature tail gas passes through tail gas fan 7 and gets into first tail gas heat exchange assembly 201, second tail gas heat exchange assembly 202, third tail gas heat exchange assembly 203 preheats step by step, the temperature reaches 500 multiplex this moment, then get into and burn burning furnace 101, combustor 102 heaies up to the combustion chamber, provide clean energy for the burning through natural gas line 103, open combustion-supporting fan 104 and make the energy fully burn, when the combustion chamber heaies up to 760 ℃, burn the schizolysis to the flue gas, VOCs (volatile organic compounds) oxidative decomposition in the messenger flue gas becomes CO2And H2O。
The high temperature flue gas after burning passes through flue gas pipeline 4, carries out waste heat conversion for third tail gas heat exchange assemblies 203, second tail gas heat exchange assemblies 202, first tail gas heat exchange assemblies 201 simultaneously, and the back is discharged clean flue gas from chimney 6 through exhaust fan 5, reaches energy-conserving effect, reduces the consumption of natural gas.
Referring to fig. 1, the utility model discloses a second embodiment waste heat recovery, high temperature flue gas after the burning passes through flue gas pipeline 4 and is second new trend heat exchange assemblies 302, first new trend heat exchange assemblies 301 carries out the waste heat conversion, fresh air passes through filter 9 and gets into first new trend heat exchange assemblies 301 through new trend fan 8, second new trend heat exchange assemblies 302 carries out the heat transfer, fresh air reaches the uniform temperature and supplies with production facility through exhaust duct and heaies up, the consumption of bellows electrical heating is saved, thereby the energy can be saved utilizes.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.
Claims (10)
1. The utility model provides a tail gas treatment and waste heat recovery utilize device which characterized in that: the tail gas heat exchange device comprises an incineration device (1), a tail gas heat exchange device (2) and a fresh air heat exchange device (3), wherein an outlet of the incineration device (1) is communicated with a hot gas channel of the tail gas heat exchange device (2) and a hot gas channel of the fresh air heat exchange device (3) through a flue gas channel (4), and the tail end of the flue gas channel (4) is communicated with a chimney (6) through an exhaust fan (5); an outlet of a tail gas channel of the tail gas heat exchange device (2) is communicated with an inlet of the incineration device (1), and a tail gas fan (7) for supplying tail gas is arranged at the inlet of the tail gas channel of the tail gas heat exchange device (2); the fresh air channel outlet of the fresh air heat exchange device (3) is communicated with production equipment, and the fresh air channel inlet of the fresh air heat exchange device (3) is provided with a fresh air fan (8) for supplying fresh air.
2. The exhaust gas treatment and waste heat recovery device according to claim 1, characterized in that: each communicating pipeline is provided with a control valve for controlling medium flowing therein and a safety valve for detecting pipeline pressure, and each communicating pipeline comprises the smoke channel (4), the hot gas channel, the tail gas channel and the fresh air channel.
3. The exhaust gas treatment and waste heat recovery device according to claim 1, characterized in that: the tail gas heat exchange device (2) and the fresh air heat exchange device (3) are both composed of a plurality of heat exchange assemblies communicated with each other and realize gradual heat exchange, and each heat exchange assembly is composed of at least two heat exchangers communicated with each other.
4. The exhaust gas treatment and waste heat recovery device according to claim 3, characterized in that: the tail gas heat exchange device (2) comprises a first tail gas heat exchange assembly (201), a second tail gas heat exchange assembly (202) and a third tail gas heat exchange assembly (203) which are sequentially communicated, the first tail gas heat exchange assembly (201) is installed at one side of the incineration device (1) and conducts low-temperature heat exchange, the second tail gas heat exchange assembly (202) is installed at the middle position and conducts medium-low-temperature heat exchange, and the third tail gas heat exchange assembly (203) is installed at one side close to the incineration device (1) and conducts high-temperature heat exchange.
5. The exhaust gas treatment and waste heat recovery device according to claim 3, characterized in that: the fresh air heat exchange device (3) comprises a first fresh air heat exchange component (301) and a second fresh air heat exchange component (302) which are communicated with each other, the first fresh air heat exchange component (301) is installed on one side far away from the incineration device (1) and conducts low-temperature heat exchange, and the second fresh air heat exchange component (302) is installed on one side close to the incineration device (1) and conducts high-temperature heat exchange.
6. The exhaust gas treatment and waste heat recovery device according to claim 3, characterized in that: and the heat exchangers of the heat exchange assembly all adopt plate-tube type heat exchange elements.
7. The exhaust gas treatment and waste heat recovery device according to claim 4, wherein: the heat exchanger of the first tail gas heat exchange assembly (201) adopts a heat exchange element combining a tube type and a plate tube type.
8. The exhaust gas treatment and waste heat recovery device according to claim 1, characterized in that: an air filter (9) is arranged at an air inlet of the fresh air fan (8).
9. The exhaust gas treatment and waste heat recovery device according to claim 1, characterized in that: the incinerator (1) comprises an incinerator (101) and a burner (102), the burner (102) is installed on one side of the incinerator (101), the burner (102) is communicated with a natural gas pipeline (103), and a combustion fan (104) is further arranged on one side of the burner (102).
10. The exhaust gas treatment and waste heat recovery device according to claim 2, characterized in that: the communicating pipelines are all provided with heat preservation devices which are wound or wrapped heat preservation layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120617667.1U CN214791179U (en) | 2021-03-26 | 2021-03-26 | Tail gas treatment and waste heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120617667.1U CN214791179U (en) | 2021-03-26 | 2021-03-26 | Tail gas treatment and waste heat recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214791179U true CN214791179U (en) | 2021-11-19 |
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ID=78667331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120617667.1U Active CN214791179U (en) | 2021-03-26 | 2021-03-26 | Tail gas treatment and waste heat recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214791179U (en) |
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2021
- 2021-03-26 CN CN202120617667.1U patent/CN214791179U/en active Active
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