Movable adsorption and desorption integrated VOCs (volatile organic compounds) treatment equipment for ship building and repairing

Abstract

The utility model belongs to the technical field of ship building and repairing processing equipment, and particularly relates to movable adsorption and desorption integrated VOCs (Volatile Organic Compounds) treatment equipment for ship building and repairing, which comprises a main body consisting of a filtering system, an adsorption system and a desorption system. The treatment equipment can be moved to any position of a ship building and repairing site, and a complete process from primary treatment of waste gas to deep purification to efficient recycling of an adsorption material is realized through collaborative operation of a highly integrated filtering system, an adsorption system and a desorption system; the high-performance honeycomb activated carbon adsorption bed not only improves the adsorption efficiency, but also can bear high-strength airflow and severe working conditions; and a thermal management and safety protection system is arranged, so that the adsorption and desorption process is safer and more reliable, and through the procedures, a traditional centralized collection mode of'fixing paint spraying operation points and fixing environment-friendly equipment 'is converted into a movable treatment mode of'moving paint spraying operation points and moving environment-friendly equipment' suitable for ship repairing and building.

Description

Technical Field

[0001] The utility model belongs to the technical field of ship repair and processing equipment, and in particular relates to a movable integrated absorption and removal VOCs treatment equipment for ship repair. Background Art

[0002] In the current shipbuilding industry, the emission of volatile organic compounds (VOCs) is becoming increasingly serious. These compounds mainly come from the use of coatings, solvents and various chemicals, which not only pollute the environment, but also affect the health of workers and may violate increasingly stringent environmental regulations. Traditional VOCs treatment technologies usually involve single-stage treatment, such as simple adsorption or combustion methods. These methods have limitations such as low treatment efficiency, high operating costs, easy to cause secondary pollution or high equipment requirements. Especially in the process of shipbuilding and repair, due to the huge size of the ship, the complex and changeable working environment, and the scattered spraying operation points, most of the painting operations cannot be carried out in fixed painting rooms and can only be carried out in open areas, making the control of volatile organic compounds more difficult.

[0003] In view of the above defects, a VOCs treatment equipment is needed that is mobile, highly integrated, has strong processing capabilities, and can adapt to changes in complex working conditions, so that it can efficiently remove VOCs while achieving resource recycling and long-term stable operation of the system, reducing downtime for maintenance, and ensuring the safety of the workplace.

[0004] Therefore, it is necessary to design a new solution to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a movable integrated absorption and removal VOCs treatment equipment for ship repair, aiming to solve the technical problem in the prior art that it is difficult to comprehensively and efficiently treat the waste gas containing paint mist and volatile organic compounds (VOCs) generated by the painting operation during the large-scale ship repair process.

[0006] To achieve the above-mentioned purpose, an embodiment of the utility model provides a movable integrated absorption and desorption VOCs treatment equipment for ship repair, comprising: a main body, which is composed of a filtration system, an adsorption system and a desorption system; a filtration system, which comprises: a filtration bin for preliminarily collecting exhaust gas to filter paint mist; an adsorption system, which comprises: a plurality of adsorption bins and activated carbon for secondary filtration of exhaust gas to prevent residual VOCs in the exhaust gas; and a desorption system, which comprises: a combustion bin for connecting to the adsorption system to deadd the activated carbon therein to complete the VOCs harmlessness and the regeneration of the activated carbon.

[0007] Furthermore, the filtration system also includes: a filter chamber arranged inside the filter bin, a plurality of air inlet pipes are arranged on one side of the filter bin, and the plurality of air inlet pipes are connected to the inside of the filter chamber; a filter plate arranged inside the filter chamber; and a blower arranged between the filter bin and the adsorption bin.

[0008] Furthermore, the adsorption system also includes: an adsorption bed arranged inside the adsorption bin, the activated carbon is arranged inside the adsorption bed; two exhaust pipes connected to both ends of the adsorption bin, one of the exhaust pipes is connected to the blower, and one end of the other exhaust pipe is connected to the exhaust fan; and an exhaust valve arranged between the exhaust pipe and the adsorption bin.

[0009] Furthermore, the desorption system also includes: two hot air pipes arranged on one side of the combustion chamber, both of which are connected to the adsorption chamber; and a catalytic valve arranged between the hot air pipe and the adsorption chamber.

[0010] Furthermore, the filter plate is made of a multi-layer composite material, and the filter plate further comprises: a fiber layer, a resin layer is disposed on one side of the fiber layer, and a gauze layer is disposed on one side of the resin layer.

[0011] Furthermore, pores are provided inside the activated carbon, and the activated carbon is arranged in a honeycomb structure as a whole.

[0012] Furthermore, a cold air pipe is connected to one side of the bottom of the hot air pipe, a fresh air fan is connected to the bottom of the cold air pipe, a fresh air valve is provided between the cold air pipe and the fresh air fan, and an infrared sensor is also provided on the inner wall of the adsorption bin.

[0013] Furthermore, the adsorption system further comprises: a fire-fighting pipe, which is connected to the adsorption bin, and a fire-fighting valve is provided between the fire-fighting pipe and the adsorption bin.

[0014] The above one or more technical solutions in the movable integrated adsorption and desorption VOCs treatment equipment for ship repair provided by the embodiment of the utility model have at least one of the following technical effects: the equipment can be moved to any position at the ship repair site, and through the coordinated operation of the highly integrated filtration system, adsorption system and desorption system, a complete process from preliminary treatment of exhaust gas to deep purification, and then to efficient recycling of adsorption materials is realized; the high-performance honeycomb activated carbon adsorption bed not only improves the adsorption efficiency, but also can withstand high-intensity airflow and harsh working conditions; and is equipped with a thermal management and safety protection system to make the adsorption and desorption process safer and more reliable. Through the above process, the traditional centralized collection mode of "fixed painting operation point and fixed environmental protection equipment" is transformed into a mobile treatment mode of "mobile painting operation point and mobile environmental protection equipment" suitable for ship repair and construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 A schematic diagram of the three-dimensional structure of a processing device provided in an embodiment of the utility model;

[0017] Figure 2 A schematic diagram of the overall structure of the processing equipment provided by the embodiment of the utility model;

[0018] Figure 3 A schematic diagram of the adsorption process of the treatment equipment provided by the embodiment of the utility model;

[0019] Among them, the figure marks are: 1-main body; 2-filtration system; 201-filtration chamber; 2011-intake pipe; 202-filtration chamber; 203-filter plate; 2031-fiber layer; 2032-resin layer; 2033-gauze layer; 204-blower; 3-adsorption system; 301-adsorption chamber; 302-adsorption bed; 303-activated carbon; 3031-pores; 304-exhaust pipe; 3041-exhaust valve; 3042-exhaust fan; 305-fire pipe; 3051-fire valve; 4-desorption system; 401-combustion chamber; 402-hot air pipe; 4021-catalytic valve; 4022-catalytic fan; 403-cold air pipe; 4031-fresh air valve; 4032-fresh air fan; 4033-infrared sensor. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0021] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0023] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0024] In the present utility model, if Figure 1-Figure 3 As shown, a movable integrated absorption and desorption VOCs treatment device for ship repair is provided, comprising: a main body 1, the main body 1 is composed of a filtering system 2, an adsorption system 3 and a desorption system 4; the filtering system 2, the filtering system 2 comprises: a filtering chamber 201, which is used to initially collect exhaust gas to filter paint mist; the adsorption system 3, the adsorption system 3 comprises: a plurality of adsorption chambers 301 and activated carbon 303, which are used to perform secondary filtration on the exhaust gas, thereby preventing the occurrence of residual VOCs in the exhaust gas; and the desorption system 4, the desorption system 4 comprises: It comprises: a combustion chamber 401, which is used to connect and cooperate with the adsorption system 3 to carry out a desorption process of the activated carbon 303 inside it, so as to complete the VOCs harmlessness and the regeneration of the activated carbon; before use, the device is directly placed near the processing part of the hull by means of a crane and other equipment; during use, the filtration system 2 cooperates with the adsorption system 3 to quickly filter the exhaust gas and remove impurities of VOCs; during the treatment process, when the activated carbon 303 is overloaded, it can be quickly desorbed by the desorption system 4, so as to facilitate the continuous utilization of the activated carbon 303.

[0025] Furthermore, the filtration system also includes: a filter chamber 202 arranged inside the filter bin 201, a plurality of air inlet pipes 2011 are arranged on one side of the filter bin 201, and the plurality of air inlet pipes 2011 are connected to the inside of the filter chamber 202; a filter plate 203 arranged inside the filter chamber 202; a blower 204 arranged between the filter bin 201 and the adsorption bin 301. During use, the blower 204 is used to continuously generate airflow, and the airflow can be used to guide and adsorb the external exhaust gas. At this time, the exhaust gas passes through the filter chamber 202 to the adsorption bin 301. In this process, the exhaust gas passes through the filter plate 203 for preliminary filtration, which can quickly filter and remove particulate matter in the exhaust gas to prevent various particulate matter from remaining in the exhaust gas.

[0026] Furthermore, the filter plate 203 is made of a multi-layer composite material, and the filter plate 203 also includes: a fiber layer 2031, a resin layer 2032 is provided on one side of the fiber layer 2031, and a gauze layer 2033 is provided on one side of the resin layer 2032. During use, the multi-layer fiber layer 2031 can absorb and filter the paint mist, and when the paint mist particles pass through the fiber layer 2031, they will be intercepted, collided, diffused, absorbed, etc., so that the paint mist particles are contained in the fiber layer 2031 when the exhaust gas passes through. At the same time, the resin layer 2032 can provide good support performance for the filter plate 203 as a whole, prevent the filter plate 203 from collapsing, and finally perform secondary filtration on the exhaust gas through the gauze layer 2033, and isolate some residual particulate matter again, thereby improving the actual filtering effectiveness of the device.

[0027] Furthermore, the adsorption system 3 also includes: an adsorption bed 302 arranged inside the adsorption bin 301, and the activated carbon 303 is arranged inside the adsorption bed 302; two exhaust pipes 304 connected to the two ends of the adsorption bin 301, one of the exhaust pipes 304 is connected to the blower 204, and one end of the other exhaust pipe 304 is connected to an exhaust fan 3042; an exhaust valve 3041 is arranged between the exhaust pipe 304 and the adsorption bin 301; during use, the exhaust gas enters the exhaust pipe 304 after passing through the blower 204, and at this time, the filtration can be started by opening the exhaust valve 3041. When the exhaust gas passes through the activated carbon 303, the multi-microporous adsorption characteristics of the activated carbon 303 will adsorb the VOCs components in the exhaust gas, thereby completing multiple filtrations.

[0028] Furthermore, pores 3031 are opened inside the activated carbon 303, and the activated carbon 303 is arranged in a honeycomb structure as a whole. The honeycomb activated carbon 303 has the advantages of stable performance, corrosion resistance and resistance to high-speed airflow impact. Using it to adsorb organic waste gas can achieve high purification efficiency.

[0029] Furthermore, the desorption system 4 also includes: two hot air pipes 402 arranged on one side of the combustion chamber 401, and the two hot air pipes 402 are both connected to the adsorption chamber 301; a catalytic valve 4021 is arranged between the hot air pipe 402 and the adsorption chamber 301. During use, when the adsorption of the activated carbon 303 tends to be saturated, the user can suspend the filtration of the exhaust gas. At this time, by starting the combustion chamber 401, the catalytic fan 4022 and the catalytic valve 4021, the hot air will be driven by the catalytic fan 4022 to lead to the inside of the adsorption chamber 301. The activated carbon 303 is heated and raised in temperature by the formula. At this time, the hot air flow transfers heat to the organic solvent molecules adsorbed on the activated carbon 303, so that they have enough energy to break free from the surface tension of the activated carbon 303 on them. During desorption, the concentration of organic waste gas can be concentrated by 10-15 times by controlling the flow rate of the desorption air flow. The desorption air flow is sent to the electric heating device in the combustion chamber 401 through the hot air pipe 402 and heated to about 300°C. Under the action of the catalyst, an oxidation reaction occurs to generate CO2 and H2O and release a large amount of heat. VOCs are consumed in this cycle, and the reaction heat is used to reduce the energy consumption of the device.

[0030] Furthermore, a cold air pipe 403 is connected to one side of the bottom of the hot air pipe 402, a fresh air fan 4032 is connected to the bottom of the cold air pipe 403, a fresh air valve 4031 is provided between the cold air pipe 403 and the fresh air fan 4032, and an infrared sensor 4033 is also provided on the inner wall of the adsorption bin 301; during use, the infrared sensor 4033 is used to continuously monitor the temperature of the activated carbon 303 inside the adsorption bin 301. When the temperature of the activated carbon 303 is high, airflow can be created inside the cold air pipe 403 by starting the fresh air fan 4032 and the fresh air valve 4031, so as to blow in outside air and cool it down, thereby preventing the activated carbon 303 from being damaged by overheating.

[0031] Furthermore, the adsorption system 3 also includes: a fire pipe 305, which is connected to the adsorption bin 301, and a fire valve 3051 is provided between the fire pipe 305 and the adsorption bin 301. When the infrared sensor 4033 detects that the internal temperature of the adsorption bin 301 exceeds the safe temperature, the fire valve 3051 is activated to connect the fire pipe 305 and the adsorption bin 301. At this time, water flows into the adsorption bin 301 through the fire pipe 305 to perform fire extinguishing, thereby preventing the device from overheating and catching fire, thereby improving the overall safety of use.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A movable integrated absorption and removal VOCs treatment equipment for shipbuilding, characterized in that: include: A main body (1), wherein the main body (1) is composed of a filtration system (2), an adsorption system (3) and a desorption system (4); A filtering system (2), the filtering system (2) comprising: a filtering chamber (201) for initially collecting waste gas to filter paint mist; An adsorption system (3), the adsorption system (3) comprising: a plurality of adsorption chambers (301) and activated carbon (303), for performing secondary filtration on the exhaust gas, thereby preventing the occurrence of residual VOCs in the exhaust gas; and The desorption system (4) comprises: a combustion chamber (401) for connecting to the adsorption system (3) to perform a desorption process on the activated carbon (303) inside the combustion chamber to achieve VOCs harmlessness and activated carbon regeneration.

2. The movable integrated absorption and removal VOCs treatment equipment for shipbuilding according to claim 1 is characterized in that: The filtration system further comprises: A filter chamber (202) is arranged inside the filter chamber (201), a plurality of air inlet pipes (2011) are arranged on one side of the filter chamber (201), and the plurality of air inlet pipes (2011) are in communication with the interior of the filter chamber (202); A filter plate (203) disposed inside the filter cavity (202); A blower (204) is provided between the filtering chamber (201) and the adsorption chamber (301).

3. The movable integrated absorption and removal VOCs treatment equipment for shipbuilding according to claim 2 is characterized in that: The adsorption system (3) further comprises: An adsorption bed (302) is arranged inside the adsorption bin (301), and the activated carbon (303) is arranged inside the adsorption bed (302); two exhaust pipes (304) connected to both ends of the adsorption bin (301), one of the exhaust pipes (304) being connected to the blower (204), and one end of the other exhaust pipe (304) being connected to an exhaust fan (3042); An exhaust valve (3041) is provided between the exhaust pipe (304) and the adsorption chamber (301).

4. The movable integrated absorption and removal VOCs treatment equipment for shipbuilding according to claim 1 is characterized in that: The desorption system (4) further comprises: Two hot air pipes (402) are arranged on one side of the combustion chamber (401), and the two hot air pipes (402) are both connected to the adsorption chamber (301); A catalytic valve (4021) is provided between the hot air pipe (402) and the adsorption chamber (301).

5. The movable integrated absorption and removal VOCs treatment equipment for shipbuilding according to claim 2 is characterized in that: The filter plate (203) is made of a multi-layer composite material, and the filter plate (203) further comprises: a fiber layer (2031), a resin layer (2032) is provided on one side of the fiber layer (2031), and a gauze layer (2033) is provided on one side of the resin layer (2032).

6. The movable integrated absorption and removal VOCs treatment equipment for shipbuilding according to claim 3 is characterized in that: The activated carbon (303) has pores (3031) inside, and the activated carbon (303) is arranged in a honeycomb structure as a whole.

7. The movable integrated absorption and removal VOCs treatment equipment for shipbuilding according to claim 4 is characterized in that: A cold air pipe (403) is connected to one side of the bottom of the hot air pipe (402), a fresh air blower (4032) is connected to the bottom of the cold air pipe (403), a fresh air valve (4031) is provided between the cold air pipe (403) and the fresh air blower (4032), and an infrared sensor (4033) is also provided on the inner wall of the adsorption bin (301).

8. The movable integrated absorption and removal VOCs treatment equipment for shipbuilding according to claim 1 is characterized in that: The adsorption system (3) further comprises: a fire-fighting pipe (305), wherein the fire-fighting pipe (305) is connected to the adsorption chamber (301), and a fire-fighting valve (3051) is provided between the fire-fighting pipe (305) and the adsorption chamber (301).

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