CN218924239U - Floating dock VOCs administers removal layout equipment - Google Patents
Floating dock VOCs administers removal layout equipment Download PDFInfo
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- CN218924239U CN218924239U CN202223378428.9U CN202223378428U CN218924239U CN 218924239 U CN218924239 U CN 218924239U CN 202223378428 U CN202223378428 U CN 202223378428U CN 218924239 U CN218924239 U CN 218924239U
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Abstract
The utility model discloses floating dock VOCs treatment mobile layout equipment, which relates to the technical field of waste gas treatment of ship paint spraying operation in floating dock areas, and comprises mobile VOCs treatment equipment, wherein the placement positions are set according to the actual construction areas of ships; the enclosing construction area is formed by enclosing a ship paint spraying area, and adopts a closed structure; and the collecting pipeline is arranged in the enclosing construction area, a collecting hole is formed in the collecting pipeline, and the mobile VOCs treatment equipment is communicated with the collecting pipeline. According to the floating dock VOCs treatment mobile layout device, the mobile VOCs treatment device can set the placement positions of the treatment devices according to the ship construction area, so that the waste gas treatment is collected intensively in the construction area, and the overall waste gas treatment energy consumption is effectively reduced. A processing equipment supports a plurality of paint spraying areas simultaneously and carries out the work such as paint mixing and spraying, and running cost is low, and staff's movable range is more nimble, effectively promotes ocean engineering, boats and ships construction and repair the efficiency of the external field paint spraying, paint mixing operation process.
Description
Technical Field
The utility model relates to the technical field of waste gas treatment of paint spraying operation of ships in a floating dock area, in particular to mobile layout equipment for treating VOCs in the floating dock.
Background
Ship coating is one of the most important pollution sources for ship manufacturing, but VOCs are polluted, and the ship coating and nitrogen oxides generate photochemical reaction in sunlight, so that people can generate respiratory tract diseases, and the incidence of asthmatic patients can be increased, thereby directly damaging the health of constructors and the public.
The existing production sources of VOCs in shipyards are mainly divided into organized discharge areas and unorganized discharge areas, and compared with the traditional VOCs pollution treatment device, the device has the advantages of large investment, higher running cost and lower adaptability.
The VOCs waste gas generated in the operations of repairing ships, manufacturing field paint spraying and paint mixing is directly discharged into the atmosphere without any collection treatment, and the discharge amount is large, so that the environment is greatly influenced. The collection and treatment of the waste gas of the VOCs in the field of ship repair and manufacturing are always difficult problems faced by the industry due to huge ship volume, complex structure and scattered operation points.
The utility model CN 202110390567.4 discloses a VOCs treatment device and method in ship construction or repair, comprising a first VOCs standard adsorption and desorption unit, a second VOCs standard adsorption and desorption unit, an intelligent VOCs terminal treatment equipment management and control platform, a VOCs concentration sensing switching valve module, a VOCs unorganized emission collection equipment desorption standard interface module, a zeolite runner and an RTO thermal decomposition treatment unit. The VOCs treatment device and the VOCs treatment method in the ship construction or repair realize centralization, modularization and intellectualization of VOCs terminal treatment in the ship construction or repair, greatly reduce treatment cost and improve treatment optimization capacity.
In the aspect of the treatment of the VOCs in the floating dock, a shipyard uses a treatment process of a high-altitude vehicle gas collecting hood and VOCs treatment equipment, and the process has obvious defects: firstly, the collection rate is very low, and VOC generated in a moment in the paint spraying operation can be collected only; secondly, the operation is complex, and the mobile VOCs treatment equipment and the overhead vehicles must be moved together; thirdly, the safety is not high, and because the equipment is always moved and cross operation is easy to occur due to the collection in the high-altitude vehicle; fourthly, the production efficiency is seriously affected, and the practicability is not high.
Foretell VOCs treatment facility adopts the device of fixed setting to carry out unified collection to the VOCs of boats and ships and handles, but the processing area of boats and ships can constantly change along with the progress, and current VOCs equipment can't be nimble to the regional high-efficient centralized processing waste gas in the construction, only can carry out exhaust-gas treatment to the region of fixed setting, leads to running cost to increase, and filtration efficiency is low. In addition, the existing treatment equipment cannot quickly move to work, the filtering work is unfolded aiming at a local construction area, the working range of workers is limited, and the efficiency of the operations of marine engineering, ship construction and external field paint spraying and paint mixing repair is reduced.
Disclosure of Invention
The utility model aims to at least solve the problem that the VOCs treatment equipment adopts a device which is fixedly arranged to uniformly collect and treat the VOCs of the ship in the prior art, but the processing area of the ship can be continuously changed along with the progress, the existing VOCs equipment cannot flexibly and intensively treat waste gas in high efficiency aiming at the area in construction, and only the fixedly arranged area can be subjected to waste gas treatment, so that the operation cost is increased and the filtering efficiency is low. The existing treatment equipment cannot quickly move to work, the filtering work is unfolded aiming at a local construction area, the working range of workers is limited, and the technical problems of ocean engineering, ship construction and efficiency of field paint spraying and paint mixing repair are solved. Therefore, the utility model provides the floating dock VOCs treatment mobile layout equipment, equipment can be arranged according to the actual construction area of the ship, meanwhile, the equipment supports multi-area waste gas treatment such as the construction area, the paint mixing room and the like, the filtering efficiency is high, the operation cost is low, the local waste gas high-efficiency treatment is realized, the equipment energy consumption is effectively reduced, the working range of staff is more flexible, and the efficiency of the outside field paint spraying and paint mixing operation of ocean engineering, ship construction and repair is improved.
According to some embodiments of the utility model, floating dock VOCs governance mobile layout equipment is applied to the processes of ocean engineering, ship construction and external field paint spraying and paint mixing repair, and comprises the following steps:
the movable VOCs treatment equipment is used for changing the working place of the movable VOCs treatment equipment according to the placement position of the actual construction area of the ship, shortening the filtering path and improving the filtering efficiency;
the enclosing construction area is formed by enclosing a ship paint spraying area, and adopts a closed structure;
the collecting pipeline is arranged in the enclosing construction area and is provided with a plurality of collecting holes, the collecting holes are used for collecting paint spraying waste gas in the enclosing construction area, and the mobile VOCs treatment equipment is communicated with the collecting pipeline;
the connecting hose is connected with the movable VOCs treatment equipment at one end, and is connected with the collecting pipeline of the enclosing construction area at the other end, so that waste gas in the enclosing construction area enters the movable VOCs treatment equipment through the connecting hose;
the movable VOCs treatment equipment is also arranged at the periphery of the enclosing construction area, and is respectively connected with the movable paint mixing room and the collecting pipeline through the connecting hose and used for carrying out waste gas treatment;
the movable VOCs treatment equipment comprises a paint mist paint removal bin and an exhaust gas purification bin, wherein the paint mist paint removal bin is provided with a paint mist filter, and the paint mist filter is used for efficiently removing paint mist particles in exhaust gas; the waste gas purification bin is provided with a renewable activated carbon adsorption bed, and the activated carbon adsorption bed is used for adsorbing organic matters in waste gas.
According to some embodiments of the utility model, the mobile VOCs treatment device is provided with a plurality of air inlets, which are correspondingly connected with the connecting hose and are communicated with the collecting pipe of the enclosing construction area and the mobile paint mixing room.
According to some embodiments of the utility model, the movable paint mixing room, the high-altitude paint spraying area and the ship flat-bottom paint spraying area are respectively provided with a system fan, and the system fans are used for assisting exhaust gas in the paint spraying area to enter the connecting hose, so that the exhaust gas collecting efficiency is improved.
According to some embodiments of the present utility model, a desorption regeneration system is independently provided outside the mobile VOCs treatment apparatus, and the desorption regeneration system includes a desorption fan, a cool air make-up fan and a catalytic combustion device; the desorption fan is used for desorbing the organic matters adsorbed by the activated carbon adsorption bed, the air supplementing fan is used for adjusting the temperature of the activated carbon adsorption bed in the desorption process, and the catalytic combustion device is used for purifying gas by catalytic combustion of the desorbed organic matters.
According to some embodiments of the utility model, the catalytic combustion device is provided with a heat exchanger for delivering hot air generated by the catalytic combustion device into the desorption regeneration system to reduce the energy consumption of the desorption process.
According to some embodiments of the utility model, the paint mist filter is provided with a paint mist filter layer, the paint mist filter layer comprises a glass fiber flame-retardant filter cotton layer and a high-efficiency filter cotton layer, the glass fiber flame-retardant filter cotton layer is arranged towards one side of the air inlet, and the high-efficiency filter cotton layer is arranged towards one side of the waste gas purifying bin.
According to some embodiments of the utility model, the glass fiber flame-retardant filter cotton layer and the high-efficiency filter cotton layer are obliquely arranged, and the glass fiber flame-retardant filter cotton layer and the high-efficiency filter cotton layer are obliquely arranged towards one side of the waste gas purification bin and are used for increasing the contact area between the paint mist filter layer and paint mist in the paint mist paint removal bin and improving the paint mist filtering efficiency.
According to some embodiments of the utility model, the activated carbon adsorption bed is provided with honeycomb activated carbon, and the exhaust gas purification bin is internally provided with a plurality of groups of activated carbon adsorption beds.
According to some embodiments of the present utility model, the mobile VOCs treatment apparatus 100 comprises at least four groups, at least one group of the mobile VOCs treatment apparatus 100 as a backup apparatus; the filtration air speed of the activated carbon adsorption beds 121 of the single unit equipment is 1.2m/s, and the filling amount of the activated carbon adsorption beds 121 of the single unit equipment is not less than 1.44m 3 。
According to some embodiments of the utility model, the floating dock VOCs governance mobile layout device has at least the following beneficial effects: remove VOCs treatment facility can set up treatment facility's position of putting according to the region of boats and ships construction, collects exhaust-gas treatment to the construction region is concentrated, effectively reduces whole exhaust-gas treatment energy consumption. The enclosing construction area is intensively connected to the processing equipment through the connecting hose, one processing equipment supports a plurality of paint spraying areas to develop paint mixing, spraying and the like, the operation cost is low, the movable range of staff is more flexible, and the efficiency of ocean engineering, ship construction, external field paint spraying and paint mixing operation is effectively improved.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic layout view of a floating dock VOCs treatment mobile layout device according to an embodiment of the utility model;
fig. 2 is a schematic structural diagram of a mobile VOCs treatment apparatus according to an embodiment of the present utility model;
FIG. 3 is a side view of a mobile VOCs treatment apparatus according to an embodiment of the utility model;
fig. 4 is a schematic diagram of connection between mobile paint mixing according to an embodiment of the utility model.
Reference numerals:
mobile VOCs treatment equipment 100, paint mist paint removal bin 110, paint mist filter layer 111, glass fiber flame-retardant filter cotton layer 111-1, efficient filter cotton layer 111-2, waste gas purification bin 120, activated carbon adsorption bed 121, air inlet 130,
A mobile paint booth 210, an overhead painting area 220, a ship flat bottom painting area 230, a system fan 240, a connection hose 300, and a collection pipe 400.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, top, bottom, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
A floating dock VOCs abatement mobile layout apparatus according to an embodiment of the present utility model is described below with reference to fig. 1-4.
In the actual construction or maintenance process of the ship, the ship is taken as a whole and is hundreds of meters long, and waste gas generated in the paint spraying maintenance process is subjected to modularized collection in different areas, so that the collection difficulty is huge, and the engineering quantity is complex. According to the utility model, the shielding region is innovatively arranged at the bottom of the ship, VOCs waste gas generated by construction in the shielding region is collected through the pipeline, the treatment equipment is arranged outside the shielding region, and the waste gas in the shielding region is collected and filtered, so that the waste gas treatment efficiency in the processes of marine engineering, ship construction, external field paint spraying and paint mixing is greatly improved.
As shown in fig. 1 to 4, the floating dock VOCs treatment mobile layout apparatus includes a mobile VOCs treatment apparatus 100, a shrouded construction area, and a connection hose 300. Specifically, the mobile VOCs treatment apparatus 100 sets a placement position according to an actual construction area of the ship for changing a work place of the mobile VOCs treatment apparatus 100, shortening a filtering path, and improving filtering efficiency. The enclosing construction area is formed by enclosing a ship paint spraying operation area, and adopts a closed structure to prevent paint spraying waste gas in the enclosing construction area from drifting into the outside air. The movable VOCs treatment equipment 100 is communicated with the enclosing construction area through a connecting hose 300, one end of the connecting hose 300 is connected with the movable VOCs treatment equipment 100, and the other end of the connecting hose 300 is connected with the enclosing construction area, so that waste gas in the enclosing construction area enters the movable VOCs treatment equipment 100 through the connecting hose 300.
The collecting pipeline 400 is arranged in the enclosing construction area, the collecting pipeline 400 is provided with a plurality of collecting holes, the collecting holes are used for collecting paint spraying waste gas in the enclosing construction area, and the mobile VOCs treatment equipment 100 is communicated with the collecting pipeline 400. One end of the connection hose 300 is connected to the mobile VOCs treatment apparatus 100, and the other end is connected to the collection pipe 400 of the enclosed construction area for allowing the exhaust gas in the enclosed construction area to enter the mobile VOCs treatment apparatus 100 through the connection hose 300. Specifically, the exhaust gas in the enclosed construction area enters the collection pipe 400 through the collection hole, and then is concentrated from the connection hose 300 through the collection pipe 400 into the mobile VOCs treatment apparatus 100.
Paint mist waste gas in the enclosed construction area is uniformly collected into the mobile VOCs treatment equipment 100 through the connecting hose 300 for recycling and filtering treatment. Because portable VOCs treatment facility 100 encloses the waste gas that covers in the construction district through collecting pipe 400 enrichment, can effectively promote the recovery efficiency of waste gas, promote waste gas recovery's efficiency and treatment facility to construction district operation, effectively reduce the energy consumption.
Wherein enclose and cover construction district and include high altitude paint spraying region 220 and the flat bottom area 230 of spraying paint of boats and ships, still including setting up in enclosing and cover the peripheral removal of construction district and transfer between 210 of lacquer, portable VOCs treatment facility 100 also sets up in enclosing the periphery of enclosing and covers the construction district, and portable VOCs treatment facility 100 is connected and carries out exhaust treatment with removal between 210 and collecting pipe 400 respectively through coupling hose 300. The mobile VOCs treatment equipment 100 comprises a paint mist paint removal bin 110 and an exhaust gas purification bin 120, wherein the paint mist paint removal bin 110 is provided with a paint mist filter, and the paint mist filter is used for efficiently removing paint mist particles in exhaust gas; the exhaust gas purifying bin 120 is provided with a regenerable activated carbon adsorption bed 121, and the activated carbon adsorption bed 121 is used for adsorbing organic matters in exhaust gas.
When in paint spraying operation, the instantaneous concentration is higher, high-concentration waste gas is locally generated, the concentration of the waste gas is reduced after spatial mixing and air exhaust, and the floating dock VOCs treatment mobile layout equipment can reduce the concentration of the waste gas VOCs to 90mg/m 3 And the exhaust is carried out, so that the method is environment-friendly. And because the operations of ocean engineering, ship construction and external field paint spraying and paint mixing are long-term engineering, the waste gas treatment equipment needs to consider the problems of stable operation and use cost, the design working time of the VOCs mobile treatment equipment is 8 hours/day, and the total annual working time is more than 300 days, so that the long-time use of the operations of ocean engineering, ship construction and external field paint spraying and paint mixing can be satisfied.
The floating dock VOCs treatment mobile layout equipment disclosed by the utility model is used for completely sealing a construction area of a ship flat bottom to form a closed space, arranging a VOCs collection pipeline, namely a connecting hose 300, and being provided with the efficient mobile VOCs treatment equipment 100, so that the global VOCs collection treatment is converted into local concentrated efficient collection treatment, and the VOCs collection efficiency and total collection quantity are greatly improved. The method has the characteristics of high collection and treatment rate, convenience in operation, high safety and no influence on production work in other areas of the ship.
In some embodiments of the present utility model, as shown in fig. 1, the mobile VOCs treatment apparatus 100 is provided with a plurality of air inlets 130, and the air inlets 130 are correspondingly connected to the connection hoses 300 and communicate with the collection pipes 400 enclosing the construction area and the mobile paint booth 210.
Specifically, the mobile VOCs treatment apparatus 100 can connect the enclosed construction area and the mobile paint booth 210, respectively, and one treatment apparatus connects a plurality of working areas at the same time, improving the waste gas recovery efficiency.
In some embodiments of the present utility model, as shown in fig. 1 and 4, the mobile paint booth 210, the overhead painting area 220, and the ship flat-bottom painting area 230 are respectively provided with a system fan 240, and the system fan 240 is used to assist the exhaust gas in the painting area into the connection hose 300, thereby improving the exhaust gas collection efficiency. It should be noted that, the mobile paint booth 210 may not use the system fan 240 to assist in collecting the exhaust gas according to different structures.
The system fans 240 are provided with a plurality of groups, and the air volume of each group of system fans 240 is not less than 10520m 3 And/h, the input power is not higher than 17kw. In this embodiment, the input power of the system fan 240 is 15kw, and the system fan has the characteristic of low energy consumption while ensuring large air quantity. Specifically, each set of system fans 240 is disposed in the paint spraying environment of the corresponding enclosed construction area, and is connected to the air inlet 130 of the processing apparatus through the connection hose 300, and each enclosed construction area is provided with one set of system fans 240.
In some embodiments of the present utility model, a desorption regeneration system (not shown in the drawing) and a catalytic combustion device (not shown in the drawing) are separately provided outside the mobile VOCs treatment apparatus, and specifically, the desorption regeneration system and the catalytic combustion device are fixedly provided in a recovery treatment area, and the saturated activated carbon adsorption bed 300 is transported to a desorption regeneration base station for desorption regeneration treatment. The desorption fan is used for desorbing the organic matters adsorbed by the activated carbon adsorption bed 121, the air supplementing fan is used for adjusting the temperature of the activated carbon adsorption bed 121 in the desorption process, and the catalytic combustion device is used for catalytically combusting the desorbed organic matters to purify the gas.
The desorption fan is used for blowing organic matters on the activated carbon adsorption bed 121 into the catalytic combustion device in the activated carbon desorption process, and the air supplementing fan is used for adjusting the reaction temperature in the desorption process. The desorption blower blows out the organic matters of each activated carbon adsorption bed 121, so that the activated carbon adsorption beds 121 recover the working capacity. The structure of the desorption regeneration system is a technical solution well known to those skilled in the art, and will not be described in detail in this embodiment.
In a further embodiment, the catalytic combustion device is provided with a heat exchanger (not shown in the figures) for delivering hot air generated by the catalytic combustion device to the desorption regeneration system for reducing the energy consumption of the desorption process.
Specifically, the saturated activated carbon can be desorbed and regenerated by hot air, the hot air flow transmits heat to organic solvent molecules adsorbed on the activated carbon, so that the organic solvent molecules have enough energy to break loose the surface tension of the activated carbon on the organic solvent molecules, the concentration of organic waste gas can be concentrated by 10-15 times by controlling the flow of desorption air flow during desorption, the desorption air flow is sent into a catalytic bed of a catalytic combustion device through a desorption fan, an internal electric heating device is heated to about 300 ℃, and oxidation reaction occurs under the action of a catalyst to generate CO 2 And H 2 O and release a lot of heat.
The hot air generated by catalytic combustion is utilized to promote the desorption of organic matters adsorbed in the honeycomb activated carbon, the desorbed organic matters are sent into a catalytic combustion device to burn under the drive of a desorption fan, and are converted into CO at about 300 ℃ under the action of a catalyst 2 And H 2 O and release a lot of heat. The heat enters the desorption regeneration system through the heat exchanger, and the organic matters of the activated carbon adsorption bed 121300 are desorbed by the hot air with the temperature blown out by the desorption fan. Thereby reducing the energy consumption of the device and the method,and the desorption effect of the desorption regeneration system is improved.
The temperature of the hot air is controlled in a certain range during desorption, and the cold air is supplemented by the air supplementing fan to cool when the temperature is too high, and the desorption regeneration time is about 6-7 hours each time. High-quality noble metals such as palladium and platinum are carried on honeycomb ceramics as catalysts, the catalytic combustion rate is more than 97%, the service life of the catalysts is long, the decomposition temperature is low, the desorption preheating time is short, and the energy consumption is low. The control system is adopted to monitor the running of equipment, so that the full automation of the operation process is realized, and the running process is safe, stable and reliable.
In some embodiments of the present utility model, as shown in fig. 2 and 4, the paint mist filter is provided with a paint mist filter layer 111, the paint mist filter layer 111 includes a glass fiber flame retardant filter cotton layer 111-1 and a high efficiency filter cotton layer 111-2, the glass fiber flame retardant filter cotton layer 111-1 is disposed toward the air inlet 130 side, and the high efficiency filter cotton layer 111-2 is disposed toward the exhaust gas purifying bin 120 side.
Specifically, in order to avoid the influence of paint mist small particles on the activated carbon adsorption bed 121, a paint mist filter is arranged in front of the activated carbon adsorption bed 121 to remove paint mist particles in the exhaust gas. The paint mist filter layer 111 adopts the glass fiber flame-retardant filter cotton layer 111-1 with high purification efficiency and no secondary pollution to purify paint mist. The dry paint mist filter material is a purification material which is specially developed aiming at the characteristics of paint mist particles, the dust holding capacity of the dry paint mist filter material reaches 453 g/square meter, the filter efficiency of the dry paint mist particles reaches 97%, the resistance of the dry paint mist filter material is only 27Pa, the flow of waste gas between the paint mist paint removal bin 110 and the waste gas purification bin 120 is not influenced, and the treatment efficiency is ensured. The glass fiber reinforced plastic composite material is formed by compounding multiple layers of glass fibers, the density is gradually increased along with the thickness, and the last layers of the glass fiber reinforced plastic composite material are made of resin materials for soaking, so that the glass fiber reinforced plastic composite material has a supporting effect. The multi-layer fiber plays roles of intercepting, colliding, diffusing, absorbing and the like on paint mist particles during filtering, and the paint mist particles are contained in the material when waste gas passes through.
The dry paint mist filtering material has higher capability of purifying paint mist than a water curtain machine, saves electricity, does not need water, has low operation cost and is convenient to use. The glass fiber flame-retardant filter cotton layer 111-1 adopted in the embodiment has the characteristics of high purification efficiency, large paint mist capacity, flame retardance, low filter resistance, long service life, simple maintenance, no secondary pollution and the like. The glass fiber flame-retardant filter cotton layer 111-1 fully absorbing paint mist can be reused for many times after being cleaned simply, the cleaning mode is simple and fast, and the enriched paint mist particles can be cleaned only by beating or dust collection on the surface of the paint mist filter layer 111.
In order to improve the filtering efficiency of the waste gas in the waste gas purifying bin 120, a layer of high-efficiency filtering cotton layer 111-2 is added between the glass fiber flame-retardant filtering cotton layer 111-1 and the purifying bin, so that the adsorption buffering effect is achieved, and the filtering efficiency is improved.
In some embodiments of the present utility model, as shown in fig. 2 and 4, the glass fiber flame retardant filter cotton layer 111-1 and the high efficiency filter cotton layer 111-2 are both disposed obliquely, and the glass fiber flame retardant filter cotton layer 111-1 and the high efficiency filter cotton layer 111-2 are disposed obliquely towards one side of the exhaust gas purifying bin 120, so as to increase the contact area between the paint mist filter layer 111 and the paint mist in the paint mist removing bin 110, and improve the paint mist filtering efficiency.
In some embodiments of the present utility model, the activated carbon adsorbent beds 121 are provided with honeycomb activated carbon, and a plurality of groups of activated carbon adsorbent beds 121 are provided in the exhaust gas purifying bin 120.
Specifically, the purified waste gas is introduced into the activated carbon adsorption bed 121 provided with the honeycomb activated carbon, the organic matters in the waste gas are fully contacted with the honeycomb activated carbon, the gas is purified by utilizing the strong adsorptivity of the activated carbon to the organic matters, and the treated gas can reach the discharge standard.
Adsorption of organic waste gas by utilizing the microporous adsorption characteristic of activated carbon is one of the most effective industrial treatment means. The honeycomb activated carbon has the advantages of stable performance, corrosion resistance and high-speed airflow impact resistance, and the purification efficiency is high by using the honeycomb activated carbon to adsorb organic waste gas.
In some embodiments of the present utility model, as shown in fig. 2 and 4, the mobile VOCs treatment apparatus 100 comprises at least four groups, at least one group of mobile VOCs treatment apparatus 100 as a backup apparatus; the filtration air speed of the activated carbon adsorption beds 121 of the single unit equipment is 1.2m/s, and the filling amount of the activated carbon adsorption beds 121 of the single unit equipment is not less than 1.44m 3 。
Specifically, in order to ensure the adsorption efficiency of the exhaust gas treatment process, the mobile VOCs treatment apparatus 100 is set to ensure the adsorption capacity of each group of treatment apparatuses, so as to meet the high flow rate requirement of the treatment apparatus of the present utility model. In order to avoid the great reduction of the treatment efficiency of the equipment caused by the adsorption saturation of the working adsorption bed, a replaceable standby mobile VOCs treatment equipment 100 is further arranged, when the adsorption saturation of the working group of the treatment equipment is carried out, the activated carbon adsorption bed 121 is detached from the treatment equipment and is transported to a desorption regeneration base station for catalytic regeneration treatment, and meanwhile, the standby treatment equipment is started, and in the starting process of the standby treatment equipment, the desorption regeneration system carries out desorption regeneration treatment on the detachment group of the treatment equipment. The desorption regeneration of the activated carbon adsorption bed 121 is completed in the working process of the equipment, the whole process is performed seamlessly, and the continuous working capacity of the equipment is ensured.
The floating dock VOCs treatment mobile layout device has the following characteristics:
(1) The method has the characteristics of high collection and treatment rate, convenience in operation, high safety, no influence on the work of workers in other construction areas and the like. Compared with other floating dock VOCs treatment processes (high-altitude car gas collecting hood VOCs treatment equipment), the method has obvious advantages.
(2) By adopting the combined process of adsorption concentration and catalytic combustion, the whole system realizes the closed circulation of the purification and desorption processes, and compared with a recovery organic waste gas purification device, the device does not need to be provided with additional energy sources such as compressed air and the like, does not produce secondary pollution in the operation process, and has low equipment investment and operation cost.
(3) The special formed honeycomb activated carbon is used as an adsorption material, and the specific gravity of the special formed honeycomb activated carbon is 8-10 times that of the strip-shaped activated carbon fiber, so that the total weight of the activated carbon can be 12.5% of the total weight of the activated carbon after the organic solvent is adsorbed before regeneration, and the special honeycomb activated carbon has the characteristics of long service life, low running resistance of an adsorption system, high purification efficiency and the like.
(4) The paint mist filter is adopted to filter small particles before the activated carbon adsorption bed 121, so that the purification efficiency is high, and the service life of the adsorption device is ensured.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. The utility model provides a floating dock VOCs administers removal layout equipment, is applied to ocean engineering, boats and ships construction and repair in the field paint spraying, the operation process of mixing paint, its characterized in that includes:
the mobile VOCs treatment equipment (100) is used for changing the working place of the mobile VOCs treatment equipment (100) according to the placement position set in the actual construction area of the ship, shortening the filtering path and improving the filtering efficiency;
the enclosing construction area is formed by enclosing a ship paint spraying area, and adopts a closed structure;
the collecting pipeline (400) is arranged in the enclosing construction area, the collecting pipeline (400) is provided with a plurality of collecting holes, the collecting holes are used for collecting paint spraying waste gas in the enclosing construction area, and the mobile VOCs treatment equipment (100) is communicated with the collecting pipeline (400);
a connection hose (300), wherein one end of the connection hose (300) is connected with the mobile VOCs treatment equipment (100), and the other end of the connection hose is connected with the collecting pipeline (400) of the enclosing construction area, so that waste gas in the enclosing construction area enters the mobile VOCs treatment equipment (100) through the connection hose (300);
the movable VOCs treatment equipment (100) is also arranged at the periphery of the enclosing construction area, and the movable VOCs treatment equipment (100) is respectively connected with the movable paint mixing room (210) and the collecting pipeline (400) through the connecting hose (300) and is used for carrying out waste gas treatment;
the movable VOCs treatment equipment (100) comprises a paint mist paint removal bin (110) and an exhaust gas purification bin (120), wherein the paint mist paint removal bin (110) is provided with a paint mist filter, and the paint mist filter is used for efficiently removing paint mist particles in exhaust gas; the exhaust gas purification bin (120) is provided with a renewable activated carbon adsorption bed (121), and the activated carbon adsorption bed (121) is used for adsorbing organic matters in exhaust gas.
2. The floating dock VOCs treatment mobile layout device according to claim 1, wherein the mobile VOCs treatment device (100) is provided with a plurality of air inlets (130), and the air inlets (130) are correspondingly connected with the connection hose (300) and are communicated with the collection pipeline (400) surrounding the construction area and the mobile paint mixing room (210).
3. The floating dock VOCs treatment mobile layout device according to claim 2, wherein the mobile paint mixing room (210), the high-altitude paint spraying area (220) and the ship flat-bottom paint spraying area (230) are respectively provided with a system fan (240), and the system fan (240) is used for assisting exhaust gas in the paint spraying area to enter the connecting hose (300), so that exhaust gas collection efficiency is improved.
4. The floating dock VOCs treatment mobile layout device according to claim 2, wherein a desorption regeneration system is independently provided outside the mobile VOCs treatment device (100), and the desorption regeneration system comprises a desorption fan, a make-up air fan and a catalytic combustion device; the desorption fan is used for desorbing the organic matters adsorbed by the activated carbon adsorption bed (121), the air supplementing fan is used for adjusting the temperature of the activated carbon adsorption bed (121) in the desorption process, and the catalytic combustion device is used for purifying gas by catalytic combustion of the desorbed organic matters.
5. The floating dock VOCs remediation mobile layout apparatus of claim 4 wherein the catalytic combustion device is provided with a heat exchanger for delivering hot air generated by the catalytic combustion device to the desorption regeneration system to reduce the energy consumption of the desorption process.
6. The floating dock VOCs treatment mobile layout device according to any one of claims 2 to 5, wherein the paint mist filter is provided with a paint mist filter layer (111), the paint mist filter layer (111) comprises a glass fiber flame retardant filter cotton layer (111-1) and a high efficiency filter cotton layer (111-2), the glass fiber flame retardant filter cotton layer (111-1) is arranged towards one side of the air inlet (130), and the high efficiency filter cotton layer (111-2) is arranged towards one side of the exhaust gas purification bin (120).
7. The floating dock VOCs treatment mobile layout device according to claim 6, wherein the glass fiber flame-retardant filter cotton layer (111-1) and the efficient filter cotton layer (111-2) are both obliquely arranged, and the glass fiber flame-retardant filter cotton layer (111-1) and the efficient filter cotton layer (111-2) are obliquely arranged towards one side of the waste gas purification bin (120) for increasing the contact area of the paint mist filter layer (111) and paint mist in the paint mist paint removal bin (110), so that paint mist filtration efficiency is improved.
8. The floating dock VOCs treatment mobile layout device according to any one of claims 2 to 5, wherein the activated carbon adsorption bed (121) is provided with honeycomb activated carbon, and a plurality of groups of activated carbon adsorption beds (121) are provided in the exhaust gas purification bin (120).
9. The floating dock VOCs remediation mobile layout apparatus of claim 8, wherein the mobile VOCs treatment apparatus (100) comprises at least four groups, at least one group of the mobile VOCs treatment apparatus (100) as a backup apparatus;
the filtration air speed of the activated carbon adsorption bed (121) of the single-group device is 1.2m/s, and the filling amount of the activated carbon adsorption bed (121) of the single-group device is not less than 1.44m 3 。
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| CN202223378428.9U CN218924239U (en) | 2022-12-14 | 2022-12-14 | Floating dock VOCs administers removal layout equipment |
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