CN209752534U - VOC S removal system utilizing gas distribution plate - Google Patents
VOC S removal system utilizing gas distribution plate Download PDFInfo
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- CN209752534U CN209752534U CN201920045958.0U CN201920045958U CN209752534U CN 209752534 U CN209752534 U CN 209752534U CN 201920045958 U CN201920045958 U CN 201920045958U CN 209752534 U CN209752534 U CN 209752534U
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- gas distribution
- regeneration
- vocs
- distribution plate
- adsorption reactor
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Treating Waste Gases (AREA)
- Separation Of Gases By Adsorption (AREA)
Abstract
The utility model provides an utilize VOCs of gas distribution board to get rid of system, a serial communication port, include: a fixed-state cylindrical adsorption reactor comprising an adsorption zone for adsorbing VOCs and a regeneration zone for desorbing VOCs adsorbed in the adsorption zone; a plurality of microwave modules spaced apart at intervals along the periphery of the cylindrical adsorption reactor; a rotary upper gas distribution plate having a supply pipe for supplying regeneration air to the regeneration zone and disposed above the cylindrical adsorption reactor; and a rotary lower gas distribution plate having an exhaust pipe for exhausting the regeneration air containing VOCs desorbed from the regeneration zone, and disposed at the lower part of the cylindrical adsorption reactor, wherein the regeneration air is supplied to the regeneration zone while the supply pipe and the exhaust pipe are positioned at the upper part and the lower part of the regeneration zone with the rotation of the upper gas distribution plate and the lower gas distribution plate, and the microwave module disposed at the side of the regeneration zone is switched to an operating state to heat the regeneration zone.
Description
Technical Field
the utility model relates to an utilize VOCs of gas distribution board to get rid of system. In more detail, a system for removing VOCs using a gas distribution plate, which efficiently treats a large amount of VOCs gas by maximizing microwave efficiency using a rotary-type gas distribution plate and a microwave module at the same time when desorbing adsorbed VOCs.
Background
volatile Organic Compounds (VOCs) have a high vapor pressure and are easily evaporated in the atmosphere, and when they coexist with nitrogen oxides, they undergo a photochemical reaction under irradiation of sunlight to generate ozone and photochemical oxidized substances, which are representative substances of photochemical smog. Due to the above problems, strict restrictions are currently being enforced at home and abroad, and this is the most advanced issue that the country is urgently required to solve.
On the other hand, since shipbuilding factories and coating factories are exceptional in terms of emission regulations for Volatile Organic Compounds (VOCs), legal regulations for VOCs removal equipment are only satisfied as a method for increasing the plant scale, and it is required to arrange efficient VOCs removal equipment with the enhancement of environmental restrictions. The prior Regenerative Thermal incinerator (RTO) has the problems of increased operating cost and insufficient space caused by large-scale equipment because of burning non-highly concentrated air.
As a solution to remove VOCs by reducing the operation cost and reducing the installation space, a technique using microwaves has been developed. Patent document 1 relates to a system for removing VOCs gas, in which microwaves are directly emitted in a horizontal direction to a honeycomb-type VOCs adsorbing wheel, so that the adsorbing wheel is regenerated. At this time, the following problems are involved: the microwave efficiency is reduced due to the difficulty in cutting off the leakage of the microwave; the operation safety is reduced; and the capacity that one adsorption wheel can handle has a limitation and is difficult to be flexibly utilized in large-scale factories such as shipyards, painting factories, and the like. Furthermore, the continuous driving of the adsorption wheel also leads to increased operating costs and problems with partial dispersion of the regeneration air before it reaches the regeneration zone.
thus, there is a need to develop a VOCs removal system that reduces the additional microwave cutting facility burden while maximizing energy efficiency.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
the utility model discloses a side provides a VOCs gets rid of system, maximize microwave efficiency to can simplify equipment and reduce the working costs, and effective processing large capacity VOCs is gaseous.
however, the technical problems to be solved by the present invention are not limited to the above-mentioned problems, and other problems not mentioned will be understood by those of ordinary skill in the art from the following description.
Means for solving the problems
To achieve the above object, a side of the present invention provides a system for removing VOCs using a gas distribution plate, comprising: a fixed-state cylindrical adsorption reactor comprising an adsorption zone for adsorbing VOCs and a regeneration zone for desorbing VOCs adsorbed in the adsorption zone; a plurality of microwave modules spaced apart at intervals along the periphery of the cylindrical adsorption reactor; a rotary upper gas distribution plate having a supply pipe for supplying regeneration air to the regeneration zone and disposed above the cylindrical adsorption reactor; and a rotary lower gas distribution plate having an exhaust pipe for exhausting the regeneration air containing the VOCs desorbed from the regeneration zone, and disposed at a lower portion of the cylindrical adsorption reactor, wherein the regeneration air is supplied to the regeneration zone while the supply pipe and the exhaust pipe are positioned at upper and lower portions of the regeneration zone according to rotation of the upper gas distribution plate and the lower gas distribution plate, and a microwave module disposed at a side surface of the regeneration zone is switched to an operating state to heat the regeneration zone.
Effect of the utility model
according to the utility model discloses can provide a VOCs gets rid of system compares adsorption reactor and microwave module, disposes the gas distribution board of relative light weight with rotatory mode to simplify equipment and reduce the working costs, easily control adsorbs and desorption time, carries out absorption and desorption process simultaneously in each region, practices thrift energy and equipment space, and maximize microwave efficiency improves regeneration efficiency, handles a large amount of VOCs gases effectively.
Drawings
Fig. 1 is a sectional view showing a constitution in which a microwave module is wrapped around the outer periphery of a cylindrical adsorption reactor as a partial constitution of a VOCs removal system according to an embodiment of the present invention.
Fig. 2 is a conceptual diagram illustrating upper and lower gas distribution plates provided when a VOCs removal system has a regeneration zone according to an embodiment of the present invention.
fig. 3 is a conceptual diagram illustrating upper and lower gas distribution plates provided when the VOCs removal system has two regeneration zones according to an embodiment of the present invention.
Fig. 4 is a conceptual diagram illustrating a configuration of upper and lower gas distribution plates in a cylindrical adsorption reactor when a VOCs removal system has one regeneration zone according to an embodiment of the present invention.
fig. 5 is a conceptual diagram showing a configuration of upper and lower gas distribution plates in a cylindrical adsorption reactor when a VOCs removal system has two regeneration zones according to an embodiment of the present invention.
Fig. 6 is a cross-sectional view illustrating a VOCs removal system according to an embodiment of the present invention.
Fig. 7 is a conceptual diagram showing a configuration in which the VOCs removal system is combined with peripheral equipment according to an embodiment of the present invention.
Fig. 8 is a view showing a microwave module provided with a groove waveguide in one divided region of a cylindrical reactor according to an embodiment of the present invention.
Detailed Description
The utility model discloses a VOCs gets rid of system is explained in detail below with reference to the attached drawing.
The utility model relates to a VOCs removing system, which comprises a cylindrical adsorption reactor 110 in a fixed state; a plurality of microwave modules 120 spaced apart at intervals along the outer circumference of the cylindrical adsorption reactor 110; and rotary-type gas distribution plates 130a, 130a ', 130 b' respectively disposed at upper and lower portions of the cylindrical adsorption reactor 110.
The gas distribution plate, which is relatively lighter than the adsorption reactor and the microwave module, is configured in a rotating manner for simplifying equipment and reducing operation costs.
The cylindrical adsorption reactor 110 is filled with an adsorbent 111 such as activated carbon or zeolite for adsorbing VOCs components. Further, the inside of the cylindrical adsorption reactor 110 filled with the adsorbent 111 is radially divided into regions with respect to the central axis, and the divided regions include: an adsorption zone for adsorbing VOCs in a VOCs-containing gas supplied from the outside; and a regeneration zone for desorbing VOCs adsorbed by the adsorption zone by high-temperature regeneration air. And, optionally, can include a cooling zone that cools after desorbing the VOCs.
The plurality of microwave modules 120 are spaced apart at intervals along the outer circumference of the cylindrical adsorption reactor 110. Preferably, the microwave modules 120 are disposed on the side surfaces of the radially divided regions of the cylindrical adsorption reactor 110, respectively.
The plurality of microwave modules 120 may be formed to wrap the side surface of the cylindrical adsorption reactor 110 or may be formed to wrap a part of the housing 140 of the side surface of the cylindrical adsorption reactor 110. Thereby, the microwave module 120 or the case 140 including the same is prevented from leaking out of the microwaves from the side of the cylindrical adsorption reactor 110. The microwave module 120 is turned to a power ON state when the configured region is regenerated, thereby irradiating microwaves to heat the regeneration region; after the regeneration is completed, the power supply is turned OFF to stop the operation. The sides of the cylindrical adsorption reactor 110 are configured as mica plates 112, which allow microwaves to pass through.
The microwave module can adopt a mode of irradiating microwaves to the regeneration area through a waveguide tube. In this case, the waveguide can be in an undivided state, that is, one channel for irradiating the microwave is formed.
Alternatively, the microwave module 120' includes a plurality of waveguides 170 in a groove shape, and uniformly divides a passage through which the microwave passes, thereby relatively uniformly irradiating the regeneration region. That is, each of the plurality of microwave modules includes a waveguide 170 including a plurality of grooves along the outer periphery of the side surface of the radially divided region 110 of the cylindrical adsorption reactor, and the plurality of grooves uniformly irradiate microwaves.
Fig. 8 is a drawing showing a microwave module 120' provided with a groove-shaped waveguide 170 disposed at the periphery of the side of one divided region of the cylindrical reactor 110. As shown in fig. 8, the waveguide may be configured to be irradiated with microwaves from one side portion thereof, or may be irradiated with microwaves from the central portion thereof.
The rotary-type gas distribution plates are disposed at the upper and lower portions of the cylindrical adsorption reactor 110, respectively. The upper gas distribution plates 130a and 130a 'disposed at the upper portion of the cylindrical adsorption reactor 110 have supply pipes 133a and 133 a' for supplying regeneration air to the regeneration zone of the cylindrical adsorption reactor 110. The regeneration air is supplied to the supply pipes 133a, 133a 'through the regeneration air injection ports 132a, 132 a'. On the other hand, the lower gas distribution plates 130b and 130b 'disposed at the lower part of the cylindrical adsorption reactor 110 have discharge pipes 133b and 133 b' for discharging the regeneration air containing VOCs desorbed from the regeneration zone of the cylindrical adsorption reactor 110. Regeneration air outlets 132b and 132b 'may be connected to the discharge ducts 133b and 133 b'. The supply pipes 133a, 133a 'of the upper gas distribution plates 130a, 130 a' and the discharge pipes 133b, 133b 'of the lower gas distribution plates 130b, 130 b' are located at a portion projected from the regeneration zone of the cylindrical adsorption reactor 110, directly above or below the regeneration zone of the cylindrical adsorption reactor 110, respectively. For convenience, the region of the regeneration zone of the cylindrical adsorption reactor 110 projected to the upper gas distribution plates 130a, 130a 'is referred to as an upper regeneration zone 131a, 131 a', and the region projected to the lower gas distribution plates 130b, 130b 'is referred to as a lower regeneration zone 131b, 131 b'.
The upper gas distribution plates 130a, 130a 'and the lower gas distribution plates 130b, 130 b' have the same rotation period at the upper and lower portions of the cylindrical adsorption reactor 110, and are periodically rotated in the same direction.
As the upper gas distribution plates 130a, 130a ' and the lower gas distribution plates 130b, 130b ' are rotated, the upper regeneration zones 131a, 131a ' and the lower regeneration zones 131b, 131b ' and the regeneration zones of the cylindrical adsorption reactor 110 are positioned on a vertical line, that is, during the period in which the supply pipes 133a, 133a ' and the discharge pipes 133b, 133b ' are positioned at the upper and lower portions of the regeneration zones, regeneration air is supplied to the upper portion of the regeneration zone of the cylindrical adsorption reactor 110 through the supply pipes 133a, 133a '. Meanwhile, the microwave module 120 disposed at the side of the regeneration zone is switched from a stop operation state to an operation state, thereby heating the regeneration zone. This causes the VOCs components in the adsorbed state to be desorbed. The regeneration air containing the desorbed VOCs is discharged through discharge pipes 133b, 133 b' disposed at the lower portion of the regeneration zone.
The adjustment can be achieved by presetting the rotation period and the regeneration time by a timer or a program. That is, the rotation period of the upper and lower gas distribution plates 130a, 130a ', 130 b', the rotational rest time during regeneration, and the operation time of the microwave module 120 can be set in advance by a timer or a program. Thereby, the adsorption and desorption times are easily controlled.
Alternatively, a sensor may be provided to detect that the upper regeneration zones 131a and 131a 'and the lower regeneration zones 131b and 131 b' are positioned on a vertical line with the regeneration zone of the cylindrical adsorption reactor 110, so that the microwave module 120 is operated by injecting the regeneration air while stopping the rotation of the upper and lower gas distribution plates 130a, 130a ', 130b, and 130 b'.
the area to be simultaneously reproduced may be a single divided reproduction area or a plurality of reproduction areas radially arranged at a constant interval. FIGS. 2 and 4 are views showing a case where one regeneration zone is provided, and FIGS. 3 and 5 are conceptual views showing the combination of upper and lower gas distribution plates and a cylindrical reactor in which two regeneration zones are provided.
Thus, in order to realize a single or multiple regeneration zones in the cylindrical adsorption reactor 110, the number of the supply pipes 133a, 133a 'of the upper gas distribution plates 130a, 130 a' and the discharge pipes 133b, 133b 'of the lower gas distribution plates 130b, 130 b' may be one or more than one arranged radially at regular intervals. In this case, the supply pipes 133a and 133a 'and the discharge pipes 133b and 133 b' are radially arranged at a predetermined interval around the rotation axes of the upper and lower gas distribution plates 130a, 130a ', 130b, and 130 b'.
Like the regeneration zone, the adsorption zone may be configured as a plurality of zones at the same time. Therefore, the adsorption and desorption processes can be simultaneously executed in a plurality of areas, and energy and equipment space are saved.
As shown in fig. 6, the VOCs removing system of the present invention can have an additional housing 150 enclosing the upper gas distribution plate 130a, 130a ', the lower gas distribution plate 130b, 130 b', and the microwave module 120, and can further include a compressed air injection port 160 formed at the additional housing 150. Compressed air is injected or discharged through the compressed air injection port 160, thereby adjusting the degree of adhesion between the upper gas distribution plates 130a and 130a 'and the lower gas distribution plates 130b and 130 b' and the cylindrical adsorption reactor 110.
that is, the upper gas distribution plates 130a and 130a 'and the lower gas distribution plates 130b and 130 b' may be attached to the cylindrical adsorption reactor 110 while the regeneration air is supplied to the regeneration zone and the microwave module 120 is kept in an operating state, and the upper gas distribution plates 130a and 130a 'and the lower gas distribution plates 130b and 130 b' may be spaced apart from the cylindrical adsorption reactor 110 when the regeneration air is stopped from being supplied to the regeneration zone and the microwave module 120 is stopped in an operating state. Thus, the degree of adhesion between the upper and lower gas distribution plates 130b and 130 b' and the cylindrical adsorption reactor 110 is adjusted by injecting and extracting compressed air. With the above configuration, the supplied regeneration air is prevented from being dispersed to an adjacent adsorption zone or cooling zone, so that the supplied regeneration air is completely utilized for the regeneration work.
To further enhance the effect, it is preferable that the sectional areas of the upper gas distribution plate 130a, 130a 'and the lower gas distribution plate 130b, 130 b' are the same as the sectional area of the cylindrical adsorption reactor 110.
Fig. 7 is a conceptual diagram of a combination of the cylindrical adsorption reactor 110 of the present invention, a catalyst system, and a heat exchanger.
The adsorption zone obtains the gas containing the VOCs from the outside and adsorbs the VOCs in the gas containing the VOCs. The fresh air from which the VOCs are removed by adsorption is discharged to the outside.
The VOCs-containing regeneration air discharged from the regeneration zone is oxidized and decomposed into carbon dioxide and water by passing through a catalytic reactor in which VOCs are oxidized into carbon dioxide (CO 2) and water (H 2 O) under a heating condition of about 200 to 350 ℃, and the oxidation catalyst includes Pd catalyst, Pt catalyst, Ru catalyst, Rh catalyst, or the like.
The catalytic reactor of the utility model can also be provided with an additional microwave module to be used as a heat source. The hot gas containing the desorbed VOCs flows into the reactor body, and the absorption of microwaves as a heat source promotes the decomposition of the VOCs to achieve removal and disposal.
The waste heat in the hot air containing CO 2/H 2 O that passes through the catalytic reactor is supplied to the regeneration air by heat exchange in a heat exchanger, and can be reused as energy for desorption reaction in the regeneration zone.
When the adsorption reactor of the present invention includes a cooling zone, the cooling zone cools the adsorption reactor in which the surface temperature is increased due to the action of microwaves after the desorption of the VOCs is completed, and at this time, the cooling zone is supplied with cooling air to cool the adsorption reactor to a normal temperature, the injected cooling air is converted into hot air of about 50 to 100 ℃ along with passing through the cooling zone, similar to the hot air containing CO 2/H 2 O passing through the catalytic reactor, and the waste heat of the hot air passing through the cooling zone is also subjected to heat exchange in the heat exchanger to be supplied to the regeneration air as energy for the desorption reaction in the regeneration zone.
2 2in summary, in the present invention, an adsorption reactor occupying a large volume and weight in a VOCs removing system is fixed to a microwave module, and a relatively light gas distribution plate is rotatably disposed, thereby simplifying equipment and saving operation costs, easily controlling adsorption and desorption times, and simultaneously performing adsorption and desorption processes in a plurality of regions, and obtaining effects of a plurality of adsorption reactors through one adsorption reactor, and structurally, a microwave module is attached and fixed to the adsorption reactor, preventing microwaves from leaking from the side of the adsorption reactor, and further, upper and lower distribution plate gases 130b, 130 b' are attached to the adsorption reactor during microwave irradiation, thereby cutting off the problem of microwave leakage from the upper and lower regions of the adsorption reactor, maximizing microwave efficiency, preventing regenerated gases from being dispersed to an adjacent adsorption region or cooling region, and improving regeneration efficiency.
Claims (10)
1. A VOCs removal system utilizing a gas distribution plate, comprising:
A fixed-state cylindrical adsorption reactor comprising an adsorption zone for adsorbing VOCs and a regeneration zone for desorbing VOCs adsorbed in the adsorption zone;
A plurality of microwave modules spaced apart at intervals along the periphery of the cylindrical adsorption reactor;
A rotary upper gas distribution plate having a supply pipe for supplying regeneration air to the regeneration zone and disposed above the cylindrical adsorption reactor; and
A rotary lower gas distribution plate having an exhaust pipe for exhausting the regeneration air containing VOCs desorbed from the regeneration zone and disposed below the cylindrical adsorption reactor,
while the supply pipe and the exhaust pipe are positioned at the upper and lower portions of the regeneration zone according to the rotation of the upper and lower gas distribution plates, regeneration air is supplied to the regeneration zone, and the microwave module disposed at the side of the regeneration zone is switched to an operating state to heat the regeneration zone.
2. The VOCs removal system of claim 1,
The cross-sectional area of the cylindrical adsorption reactor is the same as the cross-sectional areas of the upper gas distribution plate and the lower gas distribution plate.
3. The VOCs removal system of claim 1,
The upper gas distribution plate and the lower gas distribution plate periodically rotate in the same direction and have the same rotation period.
4. The VOCs removal system of claim 1,
Said upper and lower gas distribution plates being in close proximity to said cylindrical adsorption reactor during the supply of regeneration air to said regeneration zone and during operation of said microwave module;
When the supply of the regeneration air to the regeneration zone is stopped and the microwave module is stopped, the upper gas distribution plate and the lower gas distribution plate are far away from the cylindrical adsorption reactor.
5. the VOCs removal system of claim 1,
the plurality of microwave modules are formed as part of a housing that encases the sides of the cylindrical adsorption reactor.
6. The system of claim 1, further comprising:
An additional housing enclosing the upper and lower gas distribution plates and the microwave module; and
A compressed air injection port provided at the additional housing,
And injecting or discharging compressed air through the compressed air injection port, so as to adjust the attaching degree of the upper gas distribution plate and the lower gas distribution plate and the cylindrical adsorption reactor.
7. The VOCs removal system of claim 1,
A plurality of supply pipes and discharge pipes are radially provided at regular intervals around the rotation axis of the upper and lower gas distribution plates, thereby realizing a plurality of regeneration zones in the cylindrical adsorption reactor.
8. The system of claim 1, further comprising:
a catalytic reactor for oxidizing the VOCs desorbed in the regeneration zone.
9. The system of claim 8, further comprising:
A heat exchanger for exchanging heat of the waste heat generated at the catalytic reactor to supply the waste heat to the regeneration air.
10. The VOCs removal system of claim 1,
Each of the plurality of microwave modules has a waveguide including a plurality of slots along the outer periphery of the cylindrical adsorption reactor, and uniformly irradiates microwaves through the plurality of slots.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920045958.0U CN209752534U (en) | 2019-01-11 | 2019-01-11 | VOC S removal system utilizing gas distribution plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920045958.0U CN209752534U (en) | 2019-01-11 | 2019-01-11 | VOC S removal system utilizing gas distribution plate |
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| Publication Number | Publication Date |
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| CN209752534U true CN209752534U (en) | 2019-12-10 |
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| CN201920045958.0U Expired - Fee Related CN209752534U (en) | 2019-01-11 | 2019-01-11 | VOC S removal system utilizing gas distribution plate |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112642289A (en) * | 2020-11-30 | 2021-04-13 | 江苏上形环保科技有限公司 | Adsorption and decomposition type VOC removing device and method based on electric heating |
| CN112642288A (en) * | 2020-11-30 | 2021-04-13 | 江苏上形环保科技有限公司 | Adsorption and decomposition type VOC removing device based on electric heating |
| CN113209919A (en) * | 2020-01-21 | 2021-08-06 | 中国石油化工股份有限公司 | Microwave coupling catalytic reactor and VOCs treatment facility |
-
2019
- 2019-01-11 CN CN201920045958.0U patent/CN209752534U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113209919A (en) * | 2020-01-21 | 2021-08-06 | 中国石油化工股份有限公司 | Microwave coupling catalytic reactor and VOCs treatment facility |
| CN112642289A (en) * | 2020-11-30 | 2021-04-13 | 江苏上形环保科技有限公司 | Adsorption and decomposition type VOC removing device and method based on electric heating |
| CN112642288A (en) * | 2020-11-30 | 2021-04-13 | 江苏上形环保科技有限公司 | Adsorption and decomposition type VOC removing device based on electric heating |
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| TR01 | Transfer of patent right |
Effective date of registration: 20210927 Address after: Han Guozhongqingbeidao Patentee after: Acopro HN Co.,Ltd. Address before: Han Guozhongqingbeidao Patentee before: ECOPRO Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191210 Termination date: 20220111 |
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| CF01 | Termination of patent right due to non-payment of annual fee |