CN218687932U - Volatile organic compound collecting and processing system and integrated mobile device - Google Patents

Volatile organic compound collecting and processing system and integrated mobile device Download PDF

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Publication number
CN218687932U
CN218687932U CN202222883694.0U CN202222883694U CN218687932U CN 218687932 U CN218687932 U CN 218687932U CN 202222883694 U CN202222883694 U CN 202222883694U CN 218687932 U CN218687932 U CN 218687932U
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desorption
heat exchanger
gas
rotating wheel
waste gas
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陈淑敏
张宝
陈岳松
李玮
韩琦
陈松鹤
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Shanghai Haimu Environment Engineering Co ltd
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Shanghai Haimu Environment Engineering Co ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Abstract

The utility model discloses a processing system and portable device of integration are collected to volatile organic compounds, processing system include preceding processing portion, zeolite runner and catalytic combustion portion. The catalytic combustion part comprises a purge gas heating branch and a desorption gas catalytic combustion branch; the purge gas temperature-rising branch comprises a desorption heat exchanger and a desorption heater which are sequentially communicated with a purge gas outlet of the zeolite rotating wheel; the desorption gas catalytic combustion branch comprises a desorption fan, a waste gas heat exchanger, an electric heater and a catalytic reactor which are sequentially communicated with the desorption zone outlet of the zeolite rotating wheel, and the outlet of the catalytic reactor is communicated with the hot fluid pipeline of the desorption heat exchanger, the hot fluid pipeline of the waste gas heat exchanger and the clean air discharge port. The whole system is a movable integrated volatile organic compound treatment device, is integrated in a container, and the top of the system is provided with a flange port corresponding to a clean air discharge port. The device can be used for collecting and disposing the unorganized waste gas and the non-continuously discharged organized waste gas in an untimely operation workshop.

Description

Volatile organic compound collecting and processing system and integrated mobile device
Technical Field
The utility model relates to a waste gas treatment technical field, more specifically the utility model relates to a volatile organic compounds collects processing system and integration portable device that says so.
Background
With the rapid development of economy and industrialization in China, the problem of air pollution is highlighted day by day, and the large amount of organic waste gas is discharged, so that the atmospheric environment is harmed, and the sustainable development of economy is restricted. The organic waste gas mainly comes from petrochemical industry, pharmacy, printing, coating, paint spraying, leather processing, chemical fiber production, plastic processing and other production processes which relate to industries using a large amount of organic solvents, has complex components, is inflammable and explosive, has certain toxicity, can pollute the atmospheric environment, generate photochemical smog and destroy the ozone layer, can stimulate the respiratory system of a human, influence the nervous system and the hematopoietic system of the human, damage organs such as the liver and the spleen, and cause poisoning, carcinogenesis and even death. Under the background, pollution control of organic waste gas is generally regarded by society. In 2016, volatile Organic Compounds (VOCs) are brought into the supervision range by the new atmospheric pollution prevention and treatment law for the first time, and the national decision and strength on organic waste gas treatment are reflected.
The zeolite rotating wheel is used for adsorbing and concentrating organic waste gas, and the waste gas is treated by combining catalytic combustion equipment, which is a common means in the field of waste gas treatment. The zeolite rotating wheel concentrates the waste gas with large air quantity and low concentration into the waste gas with high concentration and small air quantity, thereby reducing the investment cost and the operation cost of equipment and improving the high-efficiency treatment of the VOCs waste gas. When the waste gas with large air volume and low concentration is combusted and recovered, if the zeolite rotating wheel is not arranged, the waste gas treatment equipment is not only huge in volume, but also huge in operation cost. However, the following technical drawbacks still exist in the prior art structure:
1. the existing organic waste gas treatment system mainly aims at fixed equipment for treating organized waste gas, and has less treatment equipment for unorganized discharged waste gas, particularly outfield coating operation.
2. For a plant area with discontinuous production, a plurality of scattered fixed organic waste gas generating sources often exist, and due to the characteristic of irregular operation, each waste gas source is irregularly and discontinuously discharged. For the plant area, the investment cost in the earlier stage of adopting the fixed waste gas treatment equipment is higher, and the equipment utilization rate is lower.
3. The existing organic waste gas treatment device is often bulky and inconvenient to move and transport.
4. The existing zeolite rotating wheel and catalytic combustion process often heats desorption purging gas by adopting a primary heat exchanger, so that the situation that the purging gas cannot reach the desorption temperature easily occurs, the desorption efficiency of the rotating wheel is influenced, and the heating time is longer.
5. The existing 'zeolite rotating wheel + catalytic combustion process' has long starting and stopping time and cannot meet the production requirements of immediate use and immediate stop at random during untimely operation.
Therefore, an urgent need exists in the art to provide a volatile organic compound collection and treatment system and an integrated mobile device with better operation effect.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a volatile organic compounds collects processing system and integrated portable device aims at solving above-mentioned technical problem.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a volatile organic compound collecting and treating system comprises a pretreatment part and a zeolite rotating wheel connected with the pretreatment part, wherein the zeolite rotating wheel comprises an adsorption area, a desorption area and a cooling area, and the adsorption area is connected with a clean air discharge port through an adsorption fan; also includes a catalytic combustion part;
the catalytic combustion portion includes purge gas intensification branch road and desorption gas catalytic combustion branch road.
The purge gas temperature-rising branch comprises a cold fluid pipeline of a desorption heat exchanger and a desorption heater which are sequentially communicated with a desorption purge gas outlet of the zeolite rotating wheel, and an outlet of the desorption heater is connected back to a desorption area of the zeolite rotating wheel;
the desorption gas catalytic combustion branch comprises a desorption fan, a cold fluid pipeline of the waste gas heat exchanger, an electric heater and a catalytic reactor, wherein the desorption fan is sequentially communicated with the desorption high-concentration gas outlet of the zeolite rotating wheel, and the outlet of the catalytic reactor is sequentially communicated with a hot fluid pipeline of the desorption heat exchanger, a hot fluid pipeline of the waste gas heat exchanger and the clean air discharge port.
Through the technical scheme, the utility model discloses with the unorganized waste gas that produces in the operation process of external field or the organized waste gas that the untimely job shop discharged, collect and filter through the pretreatment portion, the purified gas after the absorption of zeolite runner discharges through clean air discharge port, desorption purge gas that has not undergone purification treatment is a part of original admission, heats through desorption heat exchanger and desorption heater, returns zeolite runner again and desorbs and sweeps; the desorbed high-concentration gas enters the waste gas heat exchanger through the desorption fan, the temperature of the gas after heat exchange is further increased, and then the gas enters the electric heater, so that the temperature of the desorbed high-concentration gas can meet the requirement of subsequent catalytic reaction. The utility model provides a volatile organic compounds collects processing system can rapid heating up, can shut down at any time, satisfies the production requirement of intermittent type nature and dispersibility, avoids work latency.
Preferably, in the above volatile organic compound collection and treatment system, the pretreatment unit includes an exhaust gas collection cover and a filter connected in this order, and the filter is connected to an exhaust gas inlet of the zeolite wheel. Organic waste gas is collected through a waste gas collecting cover and a pipeline system, and then is sent to a zeolite rotating wheel for treatment after particulate matters are removed by a filter.
Preferably, in the above volatile organic compound collecting and processing system, the filter is a multi-stage filter. And each filtering module of the multistage filter is provided with a differential pressure sensor and an alarm, and the alarm sets a pressure alarm value.
Preferably, in one of the above volatile organic compound collecting and treating systems, the zeolite wheel is continuously rotated at a speed of 1 to 8 r/h.
The zeolite rotating wheel is adopted to concentrate the waste gas by 8-20 times, and the waste gas can continuously and slowly rotate at the speed of 1-8 r/h in the running process according to the waste gas treatment capacity and the concentration multiple requirement.
The desorption purge gas is a part of original intake air, is organic waste gas which is not subjected to purification treatment, is heated by a desorption heat exchanger and a desorption heater, and then returns to the zeolite rotating wheel for desorption, because desorption needs to reach a certain temperature.
The desorbed high-concentration gas enters the waste gas heat exchanger through the desorption fan, the temperature of the gas after heat exchange is further increased, and then the gas enters the electric heater, so that the temperature of the desorbed high-concentration gas can meet the requirement of subsequent catalytic reaction.
High concentration desorption gas becomes clean air after catalytic reaction of catalytic reactor, but the gas temperature this moment is very high, so connected two heat exchangers in proper order behind catalytic reactor, be desorption heat exchanger and waste gas heat exchanger respectively, can be with heat make full use of: the desorption heat exchanger has heated the desorption purge gas that comes from the zeolite runner, and when the desorption heat exchanger was enough to heat desorption purge gas to desorption temperature, the desorption heater need not open, can save the electric energy. The desorption heater is a characteristic of the utility model: the second stage of second grade heating promptly ensures desorption inlet temperature (opens the desorption heater when desorption heat exchanger is not enough to heat desorption purge gas to desorption temperature), can reduce the heat-up time moreover. The waste gas heat exchanger heats the high-concentration desorption gas from the desorption fan, so that the heating amount of a subsequent electric heater can be reduced, and the electric energy is saved.
The original high-temperature gas from the catalytic reactor is subjected to the heat exchange action of the desorption heat exchanger and the waste gas heat exchanger, then the temperature is reduced, and the high-temperature gas is mixed with the gas from the adsorption fan and then directly discharged.
The utility model also provides an integrated mobile device, the volatile organic compound collecting and processing system is integrated and fixed in the container; the top of the container is provided with a flange opening corresponding to the clean air discharge opening.
Through the technical scheme, the utility model discloses a whole system is portable integrated equipment, and is integrated in a container, is applicable to unorganized emission waste gas's collection and deals with and the collection of the discontinuous emission of untimed job shop handles the processing of organizing waste gas.
Preferably, in the above-mentioned integrated mobile device, the flange port is connected with the discharge pipe in an abutting mode through a flange, and the height of the container is not more than 3.5 m. The top discharge pipe is connected through a flange, the discharge pipe is disassembled during transportation, the overall height is not more than 3.5m, and the size requirement of highway transportation requirements can be met.
Preferably, in the integrated mobile device, the bottom of the container is provided with a shovel hole, the bottom and the top of the container are provided with lifting lugs, and the outer side wall of the container is provided with an access ladder. The shovel hole is for can allowing fork truck male hole, makes things convenient for fork truck to insert and lifts up and the transportation, and the function is transported in order to realize the hoist and mount to the lug equally, and the access ladder overhauls in order to realize the climbing, goes up the structure setting that the structure is functional, in order to realize the removal and the maintenance of container more conveniently.
Preferably, in the above integrated mobile device, the integrated mobile device further includes an electrical cabinet and a PLC control system which are matched with each other. The whole system is automatically controlled by adopting a PLC, an industrial human-computer interface is arranged on the site, and the equipment can realize 24-hour whole-course remote monitoring unattended automatic operation and realize intelligent control of the equipment. One-key start and stop of the whole system can be controlled through the counter start and stop button and the HMI start and stop button.
If the utility model discloses a grant publication number CN214680915U, the name is a zeolite runner CO catalytic combustion system, provide a catalytic combustion system who carries out control through PLC control system, its principle is unanimous with this application, no longer gives details here.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic diagram of a frame of a VOC collection and processing system provided by the present invention;
fig. 2 is an external view of an integrated mobile device according to the present invention;
fig. 3 is a schematic front internal structure diagram of the integrated mobile device provided by the present invention;
fig. 4 is a schematic diagram of the internal structure of the back of the integrated mobile device provided by the present invention.
Wherein:
1-a waste gas collection hood; 2-a filter; 3-a zeolite wheel; 4-an adsorption fan; 5-clean air discharge port; 6-desorption heat exchanger; 7-desorption heater; 8-desorption fan; 9-an exhaust gas heat exchanger; 10-an electric heater; 11-a catalytic reactor; 12-a container; 13-flange mouth; 14-discharge pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1:
referring to the attached drawing 1, the embodiment of the utility model discloses a volatile organic compound collecting and processing system, which comprises a pretreatment part and a zeolite rotating wheel 3 connected with the pretreatment part, wherein the zeolite rotating wheel 3 comprises an adsorption area, a desorption area and a cooling area, and the adsorption area is connected with a clean air discharge port 5 through an adsorption fan 4; also includes a catalytic combustion part;
the catalytic combustion part comprises a purge gas heating branch and a desorption gas catalytic combustion branch;
the purge gas temperature-rising branch comprises a cold fluid pipeline of a desorption heat exchanger 6 and a desorption heater 7 which are sequentially communicated with a desorption purge gas outlet of the zeolite rotating wheel 3, and an outlet of the desorption heater 7 is connected back to a desorption area of the zeolite rotating wheel 3;
the desorption gas catalytic combustion branch comprises a desorption fan 8, a cold fluid pipeline of a waste gas heat exchanger 9, an electric heater 10 and a catalytic reactor 11 which are sequentially communicated with a desorption high-concentration gas outlet of the zeolite runner 3, and an outlet of the catalytic reactor 11 is sequentially communicated with a hot fluid pipeline of the desorption heat exchanger 6, a hot fluid pipeline of the waste gas heat exchanger 9 and a clean air discharge port 5.
In order to further optimize the technical scheme, the pretreatment part comprises an exhaust gas collecting cover 1 and a filter 2 which are sequentially connected, and the filter 2 is connected with an exhaust gas inlet of a zeolite rotating wheel 3.
In order to further optimize the above technical solution, the filter 3 is a multi-stage filter. And each filtering module of the multistage filter is provided with a differential pressure sensor and an alarm, and the alarm sets a pressure alarm value.
In order to further optimize the technical scheme, the zeolite rotating wheel 1 continuously rotates at the speed of 1-8 r/h.
The volatile organic compound collecting and processing system provided in this embodiment mainly includes the following three processing modes:
(1) VOCs components contained in the waste gas are adsorbed inside the zeolite molecular sieve in the adsorption zone of the zeolite rotating wheel 3, and the clean air for removing the VOCs is directly discharged to the atmosphere after reaching the standard.
(2) The desorption purge gas, i.e. a part of the original intake gas, i.e. the untreated non-clean gas, is heated by the desorption heat exchanger 6 and the desorption heater 7 and then returned to the zeolite rotating wheel 3 for desorption, because the desorption needs to reach a certain temperature.
(3) The desorbed high-concentration gas enters the waste gas heat exchanger 9 through the desorption fan 8, the temperature is further increased at the moment, and then the desorbed gas enters the electric heater 10, so that the temperature of the high-concentration desorbed gas meets the requirement of subsequent catalytic reaction, the high-concentration desorbed gas is changed into clean air after the catalytic reaction of the catalytic reactor 11, but the temperature of the desorbed gas is very high, and the desorbed gas is discharged after the heat exchange of the desorption heat exchanger 6 and the waste gas heat exchanger 9.
Example 2:
referring to fig. 2, the embodiment of the present invention discloses an integrated mobile device, and a volatile organic compound collecting and processing system of embodiment 1 is integrated and fixed inside a container 12; the top of the container 12 has a flange opening 13 corresponding to the clean air discharge opening 2.
In order to further optimize the technical scheme, the discharge pipe 14 is butted and fixed on the flange port 13 through a flange.
In order to further optimize the technical scheme, the bottom of the container 12 is provided with a shovel hole, the bottom and the top of the container 12 are provided with lifting lugs, and the outer side wall of the container 12 is provided with an access ladder.
In order to further optimize the above solution, the height of the container 12 is lower than 3.5 meters. The height of 3.5m in this embodiment means the height after the discharge pipe 14 is removed.
In order to further optimize the technical scheme, the device also comprises an electrical cabinet and a PLC control system which are matched with each other. The PLC control system of this embodiment performs automatic control, and sets "one-key start" and "one-key stop" functions. The equipment can be remotely monitored at a mobile end, unattended monitoring in the whole process of 24 hours is realized, and intelligent control of the equipment is realized, wherein the equipment is a conventional means in the prior art, and is not described again.
The embodiment has the characteristics of opening promptly and start fast and stop and nimble transportation, satisfies the regional waste gas control requirement of non-centralized production.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A volatile organic compound collecting and treating system comprises a pretreatment part and a zeolite rotating wheel (3) connected with the pretreatment part, wherein the zeolite rotating wheel (3) comprises an adsorption area, a desorption area and a cooling area, and the adsorption area is connected with a clean air discharge port (5) through an adsorption fan (4); it is characterized by also comprising a catalytic combustion part;
the catalytic combustion part comprises a purge gas heating branch and a desorption gas catalytic combustion branch;
the purge gas temperature-rising branch comprises a cold fluid pipeline of a desorption heat exchanger (6) and a desorption heater (7), which are sequentially communicated with a desorption purge gas outlet of the zeolite rotating wheel (3), and an outlet of the desorption heater (7) is connected back to a desorption area of the zeolite rotating wheel (3);
the desorption gas catalytic combustion branch comprises a desorption fan (8) and a cold fluid pipeline of an exhaust gas heat exchanger (9), an electric heater (10) and a catalytic reactor (11), wherein the desorption fan and the cold fluid pipeline are sequentially communicated with the desorption high-concentration gas outlet of the zeolite rotating wheel (3), and the outlet of the catalytic reactor (11) is sequentially communicated with the hot fluid pipeline of the desorption heat exchanger (6), the hot fluid pipeline of the exhaust gas heat exchanger (9) and the clean air discharge port (5).
2. The volatile organic compound collection and treatment system according to claim 1, wherein the pre-treatment section comprises an exhaust gas collection cover (1) and a filter (2) connected in sequence, and the filter (2) is connected with an exhaust gas inlet of the zeolite rotating wheel (3).
3. A voc collection processing system according to claim 2 wherein the filter (2) is a multi-stage filter.
4. The system of claim 3, wherein each filtration module of the multistage filter is provided with a differential pressure sensor, and an alarm, wherein the alarm sets a pressure alarm value.
5. A voc collecting and processing system according to claim 1 wherein the zeolite wheel (3) is continuously rotated at a speed of 1-8 r/h.
6. An integrated mobile device, characterized in that a volatile organic compound collection and treatment system according to any one of claims 1 to 5 is integrated and fixed inside a container (12); the top of the container (12) is provided with a flange opening (13) corresponding to the clean air discharge opening (5).
7. An integrated mobile installation according to claim 6, characterised in that the flange opening (13) is fitted with a discharge pipe (14) by flange abutment.
8. The integrated mobile device of claim 6, wherein the container (12) is provided with a shovel hole at the bottom, lifting lugs are arranged at the bottom and the top of the container (12), and the outer side wall of the container (12) is provided with a detachable access ladder.
9. An integrated mobile unit according to claim 6, characterised in that the height of the container (12) does not exceed 3.5 metres.
10. The integrated mobile apparatus according to any one of claims 6 to 9, further comprising an electrical cabinet and a PLC control system in combination.
CN202222883694.0U 2022-10-31 2022-10-31 Volatile organic compound collecting and processing system and integrated mobile device Active CN218687932U (en)

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CN202222883694.0U CN218687932U (en) 2022-10-31 2022-10-31 Volatile organic compound collecting and processing system and integrated mobile device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222883694.0U CN218687932U (en) 2022-10-31 2022-10-31 Volatile organic compound collecting and processing system and integrated mobile device

Publications (1)

Publication Number Publication Date
CN218687932U true CN218687932U (en) 2023-03-24

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