CN217503702U - Multistage heat exchange type waste gas incineration treatment system - Google Patents
Multistage heat exchange type waste gas incineration treatment system Download PDFInfo
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- CN217503702U CN217503702U CN202221379532.7U CN202221379532U CN217503702U CN 217503702 U CN217503702 U CN 217503702U CN 202221379532 U CN202221379532 U CN 202221379532U CN 217503702 U CN217503702 U CN 217503702U
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E20/30—Technologies for a more efficient combustion or heat usage
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Abstract
The utility model relates to a multistage heat transfer formula waste gas incineration processing system. Comprises a multi-stage heat exchange assembly; the outlet of the cooling area of the zeolite rotating wheel is connected to the inlet of the primary side of the secondary heat exchanger, and the outlet of the primary side of the secondary heat exchanger is connected to the inlet of the desorption area of the zeolite rotating wheel; the outlet of the desorption area of the zeolite rotating wheel is connected to the inlet of a desorption fan, the outlet of the desorption fan is connected to the primary side inlet of a tertiary heat exchanger, the primary side outlet of the tertiary heat exchanger is connected to the primary side inlet of a primary heat exchanger, the primary side outlet of the primary heat exchanger is connected to the air inlet of an incinerator, the air outlet of the incinerator is connected to the secondary side inlet of the primary heat exchanger, the secondary side outlet of the primary heat exchanger is connected to the secondary side inlet of a secondary heat exchanger, the secondary side outlet of the secondary heat exchanger is connected to the secondary side inlet of the tertiary heat exchanger, and the secondary side outlet of the tertiary heat exchanger is connected to an exhaust chimney. The utility model has the advantages of reasonable design, the efficiency level of system has been promoted.
Description
Technical Field
The utility model belongs to the technical field of industrial waste gas treatment equipment, especially, relate to a multistage heat transfer formula waste gas incineration processing system.
Background
Waste gas incineration processing systems are environmental protection systems that use incineration processes to process industrial waste gas, and are often used to process organic waste gas generated in the electronic industry. The existing waste gas combustion treatment system is generally constructed based on a TO furnace or an RTO furnace, industrial organic waste gas is collected and concentrated and then is introduced into the TO furnace or the RTO furnace for incineration, combustible harmful ingredients in the waste gas are converted into harmless substances, and the waste gas is discharged after reaching the standard. The TO furnace is a direct-fired incinerator, organic waste gas is directly sent into the incinerator TO be incinerated under the action of a draught fan, the RTO furnace is a heat accumulating type incinerator, the organic waste gas firstly enters a heat accumulating chamber TO be heated, the heat stored in the heat accumulating body is absorbed, and then the organic waste gas enters the incinerator TO be further combusted.
Because organic waste gas burning belongs TO exothermic reaction, the flue gas temperature that produces by TO stove or RTO stove is higher, and it is one of the important means that promotes whole system energy efficiency TO carry out the waste heat TO the waste gas after desorption in burning system TO retrieve the heat in the flue gas tail gas rationally. In the prior art, the desorption airflow and the tail gas of the flue gas exchange heat in the heat exchanger, and the heat energy in the tail gas of the flue gas is transferred to the desorption airflow, so that the temperature of the desorption airflow rises and the temperature of the tail gas of the flue gas falls. However, the conventional waste gas incineration treatment system is still inefficient in the aspect of comprehensive utilization of the heat energy of the flue gas, so that the temperature rise degree of the desorption gas flow is difficult to reach the desorption temperature condition, the temperature of the discharged flue gas and tail gas is still high, the heat energy is wasted, and the energy efficiency of the whole treatment system is not ideal. Therefore, the structure of the waste gas incineration treatment system needs to be optimally designed according to the existing requirements, and the energy efficiency level of the whole system is improved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the technical problem that exists among the known art and provide a structural design is reasonable, lift system efficiency level, realize the multistage heat transfer formula waste gas incineration processing system of heat energy comprehensive utilization.
The utility model discloses a solve the technical scheme that technical problem that exists among the well-known technique took and be: a multi-stage heat exchange type waste gas incineration treatment system comprises a waste gas collecting assembly, a zeolite rotating wheel, an incinerator, a main fan and a desorption fan, wherein an exhaust chimney is installed on an outlet of the main fan; the multi-stage heat exchange assembly is composed of a first-stage heat exchanger, a second-stage heat exchanger and a third-stage heat exchanger; the outlet of the cooling area of the zeolite rotating wheel is connected to the inlet of the primary side of the secondary heat exchanger, and the outlet of the primary side of the secondary heat exchanger is connected to the inlet of the desorption area of the zeolite rotating wheel; the outlet of the desorption area of the zeolite rotating wheel is connected to the inlet of a desorption fan, the outlet of the desorption fan is connected to the primary side inlet of a tertiary heat exchanger, the primary side outlet of the tertiary heat exchanger is connected to the primary side inlet of a primary heat exchanger, the primary side outlet of the primary heat exchanger is connected to the air inlet of an incinerator, the air outlet of the incinerator is connected to the secondary side inlet of the primary heat exchanger, the secondary side outlet of the primary heat exchanger is connected to the secondary side inlet of a secondary heat exchanger, the secondary side outlet of the secondary heat exchanger is connected to the secondary side inlet of the tertiary heat exchanger, and the secondary side outlet of the tertiary heat exchanger is connected to an exhaust chimney.
Preferably: the first-stage heat exchanger and the second-stage heat exchanger are shell-and-tube heat exchangers, and the third-stage heat exchanger is a plate heat exchanger.
Preferably: the waste gas collecting assembly comprises a gas collecting main pipeline, a gas outlet pipeline and a plurality of gas collecting branch pipelines are arranged on the gas collecting main pipeline, each gas collecting branch pipeline is connected with a waste gas generating source, and the gas outlet pipeline is connected with an adsorption area inlet of the zeolite rotating wheel.
Preferably: the gas outlet pipeline is connected with an adsorption area inlet of the zeolite rotating wheel through a waste gas conveying pipeline, and a pipeline valve is arranged on the waste gas conveying pipeline.
Preferably: the gas source assembly comprises a cooling upstream pipeline connected with the waste gas conveying pipeline, the cooling upstream pipeline is connected with a cooling zone inlet of the zeolite rotating wheel, and a pipeline valve is arranged on the cooling upstream pipeline; the cooling system also comprises an external air supply pipeline connected with the cooling upstream pipeline, and a pipeline valve is arranged on the external air supply pipeline.
The utility model has the advantages that:
the utility model provides a reasonable in structural design's multistage heat transfer formula waste gas incineration processing system compares with current waste gas incineration processing equipment, the utility model provides a processing system has set up by one-level heat exchanger, second grade heat exchanger and the multistage heat transfer subassembly of tertiary heat exchanger, through providing multistage heat transfer for the system, has promoted waste gas treatment system and to the recycle of heat energy in the tail gas of flue gas, therefore has promoted the efficiency level of system with showing. The second grade heat exchanger and the tertiary heat exchanger of multistage heat transfer subassembly are used for carrying out preceding replacement heat to the air current before the desorption that gets into the zeolite runner and heat up, and the air current fully absorbs the heat energy in the tail gas of flue gas before the desorption, and the temperature rises to the required temperature condition of desorption, therefore can promote the effect of desorption. The one-level heat exchanger and the tertiary heat exchanger of multistage heat exchange assembly are used for replacing heat and heating up before the desorption back air current that gets into burning furnace, and the heat energy in the flue gas tail gas is fully absorbed to desorption back air current, and the temperature rises, therefore can promote incineration disposal's sufficiency and reduce the energy consumption that burns burning furnace.
The utility model provides a multistage heat transfer formula waste gas incineration processing system has promoted the efficiency level of system, has realized the comprehensive make full use of heat energy. Because promoted holistic efficiency level, burning furnace burning among the processing system can adopt the TO burning furnace that purchases, the running cost is lower, reduces the cost that the enterprise invested in the aspect of equipment purchase and operation, promotes the performance of enterprises.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure:
1. a gas collecting branch pipeline; 2. a gas collection main conduit; 3. an air outlet pipe; 4. an exhaust gas delivery conduit; 5. a zeolite wheel; 6. a main fan; 7. an exhaust stack; 8. cooling the upstream conduit; 9. an outside air supply duct; 10. a gas supply conduit; 11. a desorption fan; 12. desorbing a downstream pipeline; 13. desorbing the upstream pipeline; 14. cooling the downstream pipeline; 15. a secondary heat exchanger; 16. a tertiary heat exchanger; 17. a primary heat exchanger; 18. an incinerator.
Detailed Description
For further understanding of the contents, characteristics and effects of the present invention, the following embodiments will be described in detail.
Referring to fig. 1, the multistage heat exchange type waste gas incineration system of the present invention includes a waste gas collecting assembly, a zeolite rotating wheel 5, an incinerator 18, a main blower 6 and a desorption blower 11, and an exhaust chimney 7 is installed at an outlet of the main blower 6. The outlet of the waste gas collecting component is connected to the inlet of the adsorption area of the zeolite rotating wheel 5, the outlet of the adsorption area of the zeolite rotating wheel 5 is connected to the inlet of the main fan 6, the outlet of the desorption area of the zeolite rotating wheel 5 is connected to the inlet of the desorption fan 11, and the inlet of the cooling area of the zeolite rotating wheel 5 is connected with the gas source component.
The waste gas collection subassembly is arranged in collecting the waste gas that produces in the industrial scene, and in this embodiment, the waste gas collection subassembly includes gas collection main pipe 2, is equipped with gas outlet pipe 3 and a plurality of gas collection branch pipe 1 on gas collection main pipe 2, and each gas collection branch pipe 1 is connected with waste gas generating source, and gas outlet pipe 3 is connected with the adsorption zone entry of zeolite runner 5. The waste gas generating sources respectively located at multiple positions in an industrial scene are connected to the gas collecting branch pipelines 1 through gas collecting pipelines, the gas collecting main pipeline 2 has certain waste gas capacity, waste gas entering through the gas collecting branch pipelines 1 is collected and contained, and finally the waste gas collecting assembly conveys the waste gas to subsequent facilities through the gas outlet pipeline 3.
The zeolite rotating wheel 5 is an existing device and is used for concentrating waste gas, the waste gas with large air volume and low concentration is concentrated to the waste gas with high concentration and small air volume when passing through the zeolite rotating wheel 5, the investment cost and the operation cost of the device are reduced, and the treatment efficiency of the waste gas is improved. Structurally, zeolite runner 5 includes rotary motion, inside is equipped with the runner that zeolite packed, and the runner divide into adsorption zone, cooling space and desorption district, is equipped with the adsorption zone entry in one side of adsorption zone, the opposite side is equipped with the adsorption zone export, is equipped with the cooling space entry in one side of cooling space, the opposite side is equipped with the cooling space export, is equipped with desorption district entry, the opposite side in one side of desorption district and is equipped with the desorption district export. The exhaust gas passes in a forward direction from the adsorption zone and the desorption gas passes in a reverse direction from the desorption zone.
The incinerator 18 is an existing device, and a TO incinerator, i.e., a direct-fired incinerator, uses natural gas as a combustion gas source, and thus the gas supply pipe 10 is connected TO the incinerator 18. The main fan 6 is used for providing circulating power for the waste gas, under the action of the main fan 6, the waste gas positively passes through the adsorption area of the zeolite rotating wheel 5, harmful components in the waste gas are absorbed by the zeolite filler to generate a concentration effect, and non-absorbable components in the waste gas are discharged to the atmosphere from the exhaust chimney 7 after passing through the main fan 6. The desorption fan 11 is used for providing circulating power for desorption airflow, and under the action of the desorption fan 11, the desorption airflow reversely passes through the desorption area of the zeolite rotating wheel 5, and the concentrated harmful components of the waste gas in the zeolite filler are desorbed from the filler.
The air source assembly is used for conveying a cooling air source for cooling to the cooling area of the zeolite rotating wheel 5, and the cooling air source passes through the cooling area of the zeolite rotating wheel 5 in a positive direction to provide an air cooling effect for the cooling area, reduce the temperature of the cooling area and recover the adsorption capacity of the zeolite filler on harmful components in the waste gas. On the other hand, the temperature of the gas flow after absorbing the heat energy is increased, and the gas flow is used as desorption gas flow. The cold zone gas source may be derived from the exhaust gas or may be obtained from the external environment.
In this embodiment, the exhaust gas collecting assembly's pipeline 3 of giving vent to anger passes through exhaust gas conveying pipeline 4 and the adsorption zone entry linkage of zeolite runner 5, is equipped with the pipeline valve on exhaust gas conveying pipeline 4, and this pipeline valve is used for controlling the break-make of exhaust gas conveying pipeline 4.
In the embodiment, the air source assembly comprises a cooling upstream pipeline 8 connected with the waste gas conveying pipeline 4, the cooling upstream pipeline 8 is connected with the inlet of the cooling area of the zeolite rotating wheel 5, and a pipeline valve is arranged on the cooling upstream pipeline 8 and used for controlling the on-off of the cooling upstream pipeline 8; the cooling system also comprises an external air supply pipeline 9 connected with the cooling upstream pipeline 8, and a pipeline valve is arranged on the external air supply pipeline 9 and used for controlling the on-off of the external air supply pipeline 9.
When the cooling air source is separated from the exhaust gas, the pipeline valve on the outer air supply pipeline 9 is closed, the pipeline valve on the cooling upstream pipeline 8 is opened, and part of the exhaust gas in the exhaust gas conveying pipeline 4 enters the cooling area of the zeolite rotating wheel 5 through the cooling upstream pipeline 8. When the cooling air source is obtained from the external environment, the pipeline valve on the external air supply pipeline 9 is opened, the pipeline valve on the cooling upstream pipeline 8 is closed, and the air in the external environment enters the cooling area of the zeolite rotating wheel 5 through the external air supply pipeline 9 and the cooling upstream pipeline 8.
The waste gas incineration treatment system further comprises a multistage heat exchange assembly consisting of a first-stage heat exchanger 17, a second-stage heat exchanger 15 and a third-stage heat exchanger 16, and the waste gas incineration treatment system in the embodiment is a three-stage heat exchange type treatment system. In this embodiment, the first-stage heat exchanger 17 and the second-stage heat exchanger 15 are shell-and-tube heat exchangers, and the third-stage heat exchanger 16 is a plate heat exchanger, so that the shell-and-tube heat exchanger is convenient to clean and maintain, and the plate heat exchanger has high heat exchange efficiency.
The outlet of the cooling zone of the zeolite rotor 5 is connected to the inlet of the primary side of the secondary heat exchanger 15 through a cooling downstream pipe 14, and the outlet of the primary side of the secondary heat exchanger 15 is connected to the inlet of the desorption zone of the zeolite rotor 5 through a desorption upstream pipe 13. Therefore, the cooled gas flow from the cooling zone of the zeolite rotor 5 passes through the primary side of the secondary heat exchanger 15, and absorbs the heat energy in the flue gas to increase the temperature in the process, and the part of the gas flow is used as the gas flow before desorption entering the desorption zone of the zeolite rotor 5.
The desorption zone outlet of the zeolite rotating wheel 5 is connected to the inlet of a desorption fan 11 through a desorption downstream pipeline 12, the outlet of the desorption fan 11 is connected to the primary side inlet of a tertiary heat exchanger 16, the primary side outlet of the tertiary heat exchanger 16 is connected to the primary side inlet of a primary heat exchanger 17, and the primary side outlet of the primary heat exchanger 17 is connected to the air inlet of an incinerator 18. The desorbed gas flow from the desorption region of the zeolite rotating wheel 5 passes through the desorption fan 11, the tertiary heat exchanger 16 and the primary side of the primary heat exchanger 17 in sequence, the heat energy in the tail gas of the flue gas is absorbed in the process, the temperature is further increased, the concentration of harmful waste gas components in the desorbed gas flow is higher, and the part of gas flow enters the incinerator 18 for incineration.
An air outlet of the incinerator 18 is connected to a secondary side inlet of the primary heat exchanger 17, a secondary side outlet of the primary heat exchanger 17 is connected to a secondary side inlet of the secondary heat exchanger 15, a secondary side outlet of the secondary heat exchanger 15 is connected to a secondary side inlet of the tertiary heat exchanger 16, and a secondary side outlet of the tertiary heat exchanger 16 is connected to the exhaust chimney 7. The high-temperature flue gas tail gas generated by the incinerator 18 sequentially passes through the secondary sides of the primary heat exchanger 17, the secondary heat exchanger 15 and the tertiary heat exchanger 16, in the process, heat energy in the flue gas tail gas is respectively absorbed by the pre-desorption air flow and the post-desorption air flow (pre-incineration air flow), the temperature of the flue gas tail gas is reduced, and finally the flue gas tail gas enters the exhaust chimney 7 and is discharged to the atmosphere.
Temperature aspect: the initial temperature of the cooling gas flow is about 25 ℃, the temperature is raised to about 110 ℃ through the cooling zone, the temperature of the gas flow before desorption is about 220 ℃ through the secondary heat exchanger 15, and the temperature of the gas flow after desorption is about 60 ℃; the initial temperature of the flue gas tail gas generated by the incinerator 18 is about 750 ℃, and the temperature of the flue gas tail gas finally entering the exhaust chimney 7 is about 100 ℃.
The system operation process comprises the following steps:
the method comprises the following steps that multi-path waste gas in an industrial scene is collected to a waste gas collecting component, the collected waste gas is discharged from a gas outlet pipeline 3 under the action of a main fan 6, is conveyed to a zeolite rotating wheel 5 through a waste gas conveying pipeline 4, enters from an inlet of an adsorption area of the zeolite rotating wheel 5, adsorbable harmful ingredients in the waste gas are adsorbed by a filler when passing through a zeolite filler of the adsorption area, and other nonadsorbable ingredients enter an exhaust chimney 7 for emission after passing through the main fan 6;
cooling airflow obtained from the waste gas conveying pipeline 4 or the surrounding environment enters from the inlet of the cooling area under the action of the desorption fan 11, the cooling effect is generated when the cooling airflow passes through the zeolite filler in the area, the cooling airflow is discharged from the outlet of the cooling area after the temperature is raised, and the airflow passes through the secondary heat exchanger 15, and reaches the temperature condition required by desorption after the temperature is raised through heat exchange to form airflow before desorption; before desorption, airflow enters from an inlet of a desorption area and is discharged from an outlet of the desorption area, and harmful exhaust gas components adsorbed in zeolite filler are desorbed from the filler in the process to form desorbed airflow;
the desorbed gas flow passes through a desorption fan 11, then sequentially passes through a third-stage heat exchanger 16 and a first-stage heat exchanger 17, the temperature is further increased, and then the gas flow enters an incinerator 18 for incineration, so that harmful components are converted into harmless components, and high-temperature flue gas tail gas is formed; the flue gas tail gas passes through the primary heat exchanger 17, the secondary heat exchanger 15 and the tertiary heat exchanger 16 in sequence, the contained heat energy is absorbed by the heat exchange of the pre-desorption air flow and the post-desorption air flow, the temperature is reduced, and finally the flue gas tail gas enters the exhaust chimney 7 and is exhausted to the atmosphere.
Claims (5)
1. The utility model provides a multistage heat transfer formula waste gas incineration processing system which characterized by: the device comprises a waste gas collecting component, a zeolite rotating wheel (5), an incinerator (18), a main fan (6) and a desorption fan (11), wherein an exhaust chimney (7) is installed on an outlet of the main fan (6), an outlet of the waste gas collecting component is connected to an adsorption area inlet of the zeolite rotating wheel (5), an adsorption area outlet of the zeolite rotating wheel (5) is connected to an inlet of the main fan (6), a desorption area outlet of the zeolite rotating wheel (5) is connected to an inlet of the desorption fan (11), and a cooling area inlet of the zeolite rotating wheel (5) is connected with a gas source component;
the method is characterized in that: the heat exchanger also comprises a multi-stage heat exchange assembly consisting of a primary heat exchanger (17), a secondary heat exchanger (15) and a tertiary heat exchanger (16); the outlet of the cooling area of the zeolite rotating wheel (5) is connected to the inlet of the primary side of the secondary heat exchanger (15), and the outlet of the primary side of the secondary heat exchanger (15) is connected to the inlet of the desorption area of the zeolite rotating wheel (5); the outlet of the desorption area of the zeolite rotating wheel (5) is connected to the inlet of a desorption fan (11), the outlet of the desorption fan (11) is connected to the primary side inlet of a tertiary heat exchanger (16), the primary side outlet of the tertiary heat exchanger (16) is connected to the primary side inlet of a primary heat exchanger (17), the primary side outlet of the primary heat exchanger (17) is connected to the air inlet of an incinerator (18), the air outlet of the incinerator (18) is connected to the secondary side inlet of the primary heat exchanger (17), the secondary side outlet of the primary heat exchanger (17) is connected to the secondary side inlet of a secondary heat exchanger (15), the secondary side outlet of the secondary heat exchanger (15) is connected to the secondary side inlet of the tertiary heat exchanger (16), and the secondary side outlet of the tertiary heat exchanger (16) is connected to an exhaust chimney (7).
2. The multi-stage heat exchange type waste gas incineration disposal system according to claim 1, wherein: the first-stage heat exchanger (17) and the second-stage heat exchanger (15) are shell-and-tube heat exchangers, and the third-stage heat exchanger (16) is a plate heat exchanger.
3. The multi-stage heat exchange type waste gas incineration disposal system of claim 2, wherein: the waste gas collecting assembly comprises a gas collecting main pipeline (2), a gas outlet pipeline (3) and a plurality of gas collecting branch pipelines (1) are arranged on the gas collecting main pipeline (2), each gas collecting branch pipeline (1) is connected with a waste gas generating source, and the gas outlet pipeline (3) is connected with an adsorption area inlet of the zeolite rotating wheel (5).
4. The multi-stage heat exchange type waste gas incineration disposal system of claim 3, wherein: the gas outlet pipeline (3) is connected with an adsorption area inlet of the zeolite rotating wheel (5) through a waste gas conveying pipeline (4), and a pipeline valve is arranged on the waste gas conveying pipeline (4).
5. The multi-stage heat exchange type waste gas incineration disposal system according to claim 4, wherein: the gas source assembly comprises a cooling upstream pipeline (8) connected with the waste gas conveying pipeline (4), the cooling upstream pipeline (8) is connected with the inlet of the cooling area of the zeolite rotating wheel (5), and a pipeline valve is arranged on the cooling upstream pipeline (8); the cooling system also comprises an external air supply pipeline (9) connected with the cooling upstream pipeline (8), and a pipeline valve is arranged on the external air supply pipeline (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221379532.7U CN217503702U (en) | 2022-06-02 | 2022-06-02 | Multistage heat exchange type waste gas incineration treatment system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221379532.7U CN217503702U (en) | 2022-06-02 | 2022-06-02 | Multistage heat exchange type waste gas incineration treatment system |
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| CN217503702U true CN217503702U (en) | 2022-09-27 |
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| CN202221379532.7U Active CN217503702U (en) | 2022-06-02 | 2022-06-02 | Multistage heat exchange type waste gas incineration treatment system |
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2022
- 2022-06-02 CN CN202221379532.7U patent/CN217503702U/en active Active
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