Odor adsorption structure of VOC waste gas treatment device

Abstract

The utility model discloses a peculiar smell adsorption structure of a VOC waste gas treatment device, and relates to the technical field of VOC waste gas treatment. Comprising a vertical purification tower, the periphery of the purification tower is wrapped with an outer cover, a U-shaped air duct is arranged in the outer cover, the air duct is filled with activated carbon, and waste gas exhausted by the purification tower penetrates through the activated carbon in the outer cover in a U-shaped path. The U-shaped air duct is arranged on the periphery of the purification tower by utilizing the outer cover and is filled with the activated carbon, so that the waste gas purified by the purification tower obtains a larger and longer circulation space in the outer cover, the contact time and the contact area of the waste gas and the activated carbon are increased, the peculiar smell adsorption effect is effectively improved, and the activated carbon is convenient to replace due to the arrangement outside the tower.

Description

Technical Field

[0001] The utility model belongs to the technical field of VOC waste gas treatment, and in particular relates to an odor adsorption structure of a VOC waste gas treatment device. Background Art

[0002] VOC waste gas is generated during industrial production processes and must be filtered and purified before being discharged into the atmosphere.

[0003] In the patent application with the prior art publication number CN208627020U and the patent name VOC waste gas odor treatment equipment, a housing is included, an air inlet pipe and an air outlet pipe are respectively arranged at both ends of the housing, and a plasma purification part, a photolysis waste gas purification part and an adsorption part are arranged in sequence from the air inlet pipe to the air outlet pipe. In the process of implementing the technical solution, it is found that there are at least the following problems in the prior art.

[0004] In the above patent, the adsorption part uses activated carbon to absorb odor. The space inside the shell is limited and the air flow speed is fast. The adsorption part does not adopt a special structure, resulting in insufficient contact area and contact time between the activated carbon and the air flow, which easily affects the adsorption of odor by the activated carbon. Utility Model Content

[0005] The utility model aims to provide an odor adsorption structure of a VOC waste gas treatment device to solve the technical problems raised in the background technology.

[0006] To achieve the above-mentioned purpose, the specific technical scheme of the utility model is as follows: the odor adsorption structure of the VOC waste gas treatment device includes a vertical purification tower, the outer periphery of the purification tower is wrapped with an outer cover, a U-shaped air duct is arranged inside the outer cover, and the air duct is filled with activated carbon. The waste gas discharged from the purification tower passes through the activated carbon in the outer cover in a U-shaped path.

[0007] Preferably, the outer cover comprises an outer shell, an inner shell and a bracket, the outer shell and the inner shell are both fixedly connected to the outer wall of the purification tower through the bracket, and the inner shell is located between the outer shell and the purification tower.

[0008] Preferably, a cover plate is movably provided on the upper end of the inner shell, and the cover plate is movably sealed on the upper end of the inner shell.

[0009] Preferably, the upper end of the shell is opened, and a rain shield is provided on the upper end of the shell. The rain shield is detachably connected to the bracket, and the rain shield is movably pressed against the cover plate.

[0010] Preferably, a door panel is provided at the lower end of the shell, and a pin lock is provided on the door panel.

[0011] Preferably, the purification tower comprises a tower body, an air inlet pipe is arranged at the lower end of the tower body, and exhaust holes are arranged in an array around the upper end of the tower body, and the exhaust holes are located in the inner shell.

[0012] Preferably, a primary filtration layer, a spray net, an ionosphere and a photolysis layer are sequentially arranged in the tower body from bottom to top.

[0013] Preferably, a water storage chamber is provided at the lower end of the tower body, and a valve is provided at the lower end of the water storage chamber.

[0014] Preferably, an electric field generator is provided in the ionosphere.

[0015] Preferably, an ultraviolet lamp is provided in the photolysis layer.

[0016] The odor adsorption structure of the VOC waste gas treatment device of the utility model has the following advantages:

[0017] 1. The odor adsorption structure of the VOC waste gas treatment device purifies the waste gas in the purification tower and converts harmful substances into harmless substances.

[0018] 2. The odor adsorption structure of the VOC waste gas treatment device uses an outer cover to set a U-shaped air duct on the periphery of the purification tower and fill it with activated carbon, so that the waste gas purified by the purification tower obtains a larger and longer circulation space in the outer cover, thereby increasing the contact time and contact area with the activated carbon, effectively improving the odor adsorption effect, and the setting outside the tower facilitates the replacement of activated carbon. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is a schematic diagram of the overall structure of the utility model from an external perspective;

[0021] Figure 2 It is a top view schematic diagram of the connection relationship between the purification tower and the shell of the utility model;

[0022] Figure 3 It is a schematic diagram of the connection relationship between the purification tower and the cross-section shell of the utility model;

[0023] Figure 4 This is a schematic diagram of the connection relationship between the outer shell and the inner shell of the utility model;

[0024] Figure 5It is a schematic diagram of the overall structure of the utility model from a cross-sectional perspective;

[0025] Figure 6 For the utility model Figure 5 The enlarged structural diagram at A in the middle;

[0026] Figure 7 For the utility model Figure 1 Enlarged structural diagram at B in the middle.

[0027] Explanation of the markings in the figure: 1-purification tower; 11-tower body; 12-inlet pipe; 13-exhaust hole; 14-primary filter layer; 15-spray net; 16-ionosphere; 17-photolysis layer; 2-outer cover; 21-outer shell; 22-inner shell; 23-bracket; 24-cover plate; 25-rain cover; 26-door panel; 27-pin lock. DETAILED DESCRIPTION

[0028] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0029] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or positional relationship are based on the orientation or positional 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 embodiments of the present invention.

[0030] 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.

[0031] In the embodiments of the present utility model, 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, an electrical connection, or a communication; 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 utility model can be understood according to specific circumstances.

[0032] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the present utility model. In order to simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0033] In order to better understand the purpose, structure and function of the present invention, the odor adsorption structure of the VOC waste gas treatment device of the present invention is further described in detail below in conjunction with the accompanying drawings.

[0034] like Figure 1-Figure 2 As shown, the odor adsorption structure of the VOC waste gas treatment device of the utility model includes a vertical purification tower 1, the outer periphery of the purification tower 1 is wrapped with an outer cover 2, a U-shaped air duct is arranged inside the outer cover 2, the outer cover 2 is filled with activated carbon, and the waste gas discharged from the purification tower 1 passes through the activated carbon in the outer cover 2 in a U-shaped path.

[0035] like Figure 1-Figure 4 As shown, the outer cover 2 includes an outer shell 21, an inner shell 22 and a bracket 23, and the outer shell 21 and the inner shell 22 are fixedly connected to the outer wall of the purification tower 1 through the bracket 23, and the inner shell 22 is located between the outer shell 21 and the purification tower 1. The inner shell 22 acts as a partition to separate the space between the outer shell 21 and the purification tower 1 into a U shape, thereby increasing the contact time of the airflow in the activated carbon, thereby improving the adsorption effect.

[0036] like Figure 2-Figure 6 As shown, a cover plate 24 is movably provided on the upper end of the inner shell 22, and the cover plate 24 is movably sealed on the upper end of the inner shell 22. Opening the cover plate 24 can conveniently add activated carbon into the outer shell 21 and the inner shell 22 from the upper end. In this embodiment, the cover plate 24 is divided into two semicircles for easy opening.

[0037] like Figure 1-Figure 6As shown, the upper end of the shell 21 is open, and a rain cover 25 is provided on the upper end of the shell 21. The rain cover 25 is detachably connected to the bracket 23, and the rain cover 25 is movably pressed against the cover plate 24. The opening at the upper end of the shell 21 is blocked by the rain cover 25 to prevent rain and snow from entering the activated carbon, and the rain cover 25 is used to press against the cover plate 24 to ensure that the cover plate 24 is not pushed open by air pressure. Specifically, the legs of the rain cover 25 are dropped onto the cover plate 24, and then rotated so that the legs are stuck to the bracket 23, thereby completing the fixing of the rain cover 25 and the cover plate 24.

[0038] like Figure 1 , Figure 2 and Figure 7 As shown, a door panel 26 is provided at the lower end of the housing 21, and a pin lock 27 is provided on the door panel 26. The pin lock 27 includes a hanging rod hinged on the door panel 26 and a pin block fixed on the housing 21. The rotating hanging rod is hooked to hook the pin block on the housing 21, thereby locking the door panel 26, and no tools are required, so it is easy to open and discharge the activated carbon for replacement.

[0039] like Figure 1 and Figure 5 As shown, the purification tower 1 includes a tower body 11, an air inlet pipe 12 is provided at the lower end of the tower body 11, and exhaust holes 13 are arranged in an array around the upper end of the tower body 11, and the exhaust holes 13 are located in the inner shell 22. VOC waste gas enters the tower body 11 through the air inlet pipe 12, and after being filtered and purified, it is evenly dispersed from the exhaust holes 13 at the upper end, and enters the inner shell 22, moves downward from the bottom end of the inner shell 22 and turns upward, and finally is discharged from the upper end opening of the outer shell 21, and is filtered by activated carbon, thereby adsorbing odor in the waste gas. Since the airflow is dispersed, the contact area with the activated carbon is increased, and the airflow speed will also be slowed down, thereby increasing the contact time with the activated carbon, thereby improving the adsorption effect.

[0040] like Figure 1 and Figure 5 As shown, the tower body 11 is provided with a primary filter layer 14, a spray net 15, an ionization layer 16 and a photolysis layer 17 from bottom to top. The primary filter layer 14 is used to filter dust and large particles of impurities in the exhaust gas, the spray net 15 is used to reversely flush foreign matter in the primary filter layer 14 in the filtering gap to achieve cleaning and avoid clogging, and the ionization layer 16 and the photolysis layer 17 use ionization and photolysis reactions respectively to convert harmful substances in the exhaust gas into harmless substances to achieve exhaust gas purification.

[0041] like Figure 1 and Figure 5 As shown, a water storage chamber is provided at the lower end of the tower body 11, and a valve is provided at the lower end of the water storage chamber. The water storage chamber is used to store sewage generated during spraying, and then discharged through the valve below.

[0042] like Figure 1 and Figure 5 As shown, an electric field generator is provided in the ionosphere 16. The high-energy ions excited by the electric field generator in the ionosphere 16 undergo ionization reaction with the exhaust gas, converting it into small molecular safety substances, thereby achieving exhaust gas purification. In this embodiment, a purification net is also provided above the ionosphere 16 to isolate the ionosphere 16 and the photolysis layer 17.

[0043] like Figure 1 and Figure 5 As shown, an ultraviolet lamp is arranged in the photolysis layer 17. The ultraviolet beam generates ozone for purifying the exhaust gas, and then a nano-catalytic net is arranged to accelerate the oxidation reaction of organic matter in the exhaust gas with oxygen, and convert it into harmless substances such as carbon dioxide and water.

[0044] The working principle of the odor adsorption structure of the VOC waste gas treatment device: VOC waste gas enters the tower body 11 through the air inlet pipe 12, and after filtering and purification, it is evenly dispersed from the exhaust hole 13 at the upper end, and enters the inner shell 22, moves downward from the bottom end of the inner shell 22 to turn upward, and is finally discharged from the upper end opening of the outer shell 21. In the outer shell 21 and the inner shell 22, the exhaust gas emission volume increases, thereby reducing the flow rate. At the same time, the exhaust gas is also dispersed and the flow path of the exhaust gas in the activated carbon increases, thereby increasing the contact time with the activated carbon, thereby improving the adsorption effect of the activated carbon on the exhaust gas. In summary, a U-shaped air duct is set on the periphery of the purification tower 1 by using the outer cover 2, and activated carbon is filled, so that the exhaust gas purified by the purification tower 1 obtains a larger and longer circulation space in the outer cover 2, thereby increasing the contact time and contact area with the activated carbon, effectively improving the odor adsorption effect, and the setting outside the tower is convenient for the replacement of activated carbon.

[0045] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. An odor adsorption structure of a VOC waste gas treatment device comprises a vertical purification tower (1), characterized in that: The purification tower (1) is wrapped with an outer cover (2) on its periphery, a U-shaped air duct is arranged inside the outer cover (2), and the air duct is filled with activated carbon. The exhaust gas discharged from the purification tower (1) passes through the activated carbon in the outer cover (2) in a U-shaped path.

2. The odor adsorption structure of the VOC waste gas treatment device according to claim 1 is characterized in that: The outer cover (2) comprises an outer shell (21), an inner shell (22) and a bracket (23); the outer shell (21) and the inner shell (22) are both fixedly connected to the outer wall of the purification tower (1) via the bracket (23); and the inner shell (22) is located between the outer shell (21) and the purification tower (1).

3. The odor adsorption structure of the VOC waste gas treatment device according to claim 2 is characterized in that: A cover plate (24) is movably provided on the upper end of the inner shell (22), and the cover plate (24) is movably sealed on the upper end of the inner shell (22).

4. The odor adsorption structure of the VOC waste gas treatment device according to claim 3 is characterized by: The upper end of the shell (21) is open, and a rain shield (25) is provided at the upper end of the shell (21). The rain shield (25) is detachably connected to the bracket (23), and the rain shield (25) is movably pressed against the cover plate (24).

5. The odor adsorption structure of the VOC waste gas treatment device according to claim 4 is characterized in that: A door panel (26) is provided at the lower end of the housing (21), and a pin lock (27) is provided on the door panel (26).

6. The odor adsorption structure of the VOC waste gas treatment device according to claim 5, characterized in that: The purification tower (1) comprises a tower body (11), the lower end of the tower body (11) is provided with an air inlet pipe (12), the upper end of the tower body (11) is provided with exhaust holes (13) in an array around the tower body (11), and the exhaust holes (13) are located in the inner shell (22).

7. The odor adsorption structure of the VOC waste gas treatment device according to claim 6 is characterized by: The tower body (11) is provided with a primary filtering layer (14), a spraying net (15), an ionosphere (16) and a photolysis layer (17) in sequence from bottom to top.

8. The odor adsorption structure of the VOC waste gas treatment device according to claim 7, characterized in that: A water storage chamber is provided at the lower end of the tower body (11), and a valve is provided at the lower end of the water storage chamber.

9. The odor adsorption structure of the VOC waste gas treatment device according to claim 8, characterized in that: An electric field generator is arranged in the ionosphere (16).

10. The odor adsorption structure of the VOC waste gas treatment device according to claim 9, characterized in that: An ultraviolet lamp is arranged in the photolysis layer (17).

Images