VOCs waste gas adsorption device

Abstract

The utility model discloses a VOCs waste gas adsorption device and relates to the technical field of waste gas treatment equipment. Comprising a treatment box, a gas mechanism, a cooling box, an electromagnetic valve, a molecular sieve plate and an adsorption mechanism, through a cooling box, a condensation pipe, an electromagnetic valve and a molecular sieve plate, after waste gas enters the cooling box, the temperature in the waste gas generation process is high, moisture in the waste gas is decomposed into water drops through the condensation pipe, then the electromagnetic valve is opened, and the waste gas enters an inner cavity of the treatment box through the molecular sieve plate; meanwhile, moisture in the waste gas is adsorbed again through the molecular sieve plate, so that the waste gas is dried; the tension spring rebounds to drive the limiting rod to be inserted into an inner cavity of the limiting ring so as to position the mounting plate; the problem that the adsorption efficiency of harmful gas is reduced and the waste gas adsorption effect is affected due to the fact that moisture in pores occupies the pores after waste gas containing moisture is in contact with activated carbon in traditional VOCs waste gas adsorption equipment is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment equipment, in particular to a VOCs waste gas adsorption device. Background Art

[0002] Industrial production processes generate a wide variety of waste gases. VOCs, a common industrial waste gas, have become a major cause of environmental pollution in my country. VOCs include non-methane hydrocarbons (NMHCs), oxygen-containing organic compounds, halogenated hydrocarbons, nitrogen-containing organic compounds, and sulfur-containing organic compounds. Therefore, to reduce VOC emissions, efforts should be focused on strengthening waste gas control.

[0003] At present, the treatment methods for VOCs waste gas mainly include adsorption method, thermal destruction method, biological treatment method and condensation collection method. Among them, in the above methods, the principle of the adsorption method is to use a solid adsorbent with a large specific surface area to selectively adsorb the VOCs components in the waste gas, thereby achieving the purpose of purifying the waste gas. Therefore, due to the advantages of simple structure and good treatment effect, the adsorption method is widely used in production. However, the existing VOCs waste gas adsorption equipment mainly uses activated carbon adsorption mesh to adsorb waste gas, but in the industrial production process, the water vapor volatilization caused by temperature changes will cause a large amount of moisture in the waste gas. When the waste gas containing moisture comes into contact with the activated carbon, the water inside the pores occupies the pores, resulting in a decrease in the adsorption efficiency of harmful gases, affecting the waste gas adsorption effect.

[0004] Based on this, the utility model provides a VOCs waste gas adsorption device to solve the problems existing in the above-mentioned prior art. Utility Model Content

[0005] In view of this, the main purpose of the present invention is to provide a VOCs waste gas adsorption device to solve the problem existing in traditional VOCs waste gas adsorption equipment that when the waste gas containing moisture comes into contact with activated carbon, the moisture inside the pores occupies the pores, resulting in a decrease in the adsorption efficiency of harmful gases and affecting the waste gas adsorption effect.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0007] A VOCs waste gas adsorption device, comprising:

[0008] Processing box;

[0009] An air collecting mechanism is provided at the air inlet end of the processing box;

[0010] A cooling box is arranged in the processing box, is communicated with the gas collecting mechanism, and is provided with a condenser pipe;

[0011] A solenoid valve is provided at the exhaust end of the cooling box, and a molecular sieve plate is also provided on the side of the solenoid valve away from the cooling box;

[0012] The adsorption mechanism is arranged on a side of the molecular sieve plate away from the solenoid valve.

[0013] In a preferred embodiment, the air collecting mechanism includes a fan, which is arranged on the processing box, and is connected to an air inlet pipe at the air inlet end of the fan, the air inlet pipe passes through the inner cavity of the processing box and is connected to a connecting pipe, and is connected to an air outlet pipe at the exhaust end of the fan, the other end of the air outlet pipe passes through the cooling box and is connected to a diffusion shell.

[0014] In a preferred embodiment, a plurality of air outlet holes are provided on the surface of the diffusion shell, and the air outlet holes are arranged in a ring array.

[0015] In a preferred embodiment, the adsorption mechanism includes two mounting plates arranged in the processing box, an adsorption plate made of activated carbon is arranged in the mounting plate, and a handle is provided on one side of the mounting plate.

[0016] In a preferred embodiment, the adsorption mechanism further includes a limiting ring arranged on one side of the mounting plate, a limiting rod is inserted into the limiting ring, a tension spring is provided on one side of the inner wall of the limiting rod, and a positioning plate is provided at the other end of the tension spring.

[0017] In a preferred embodiment, the inner cavity of the positioning plate is slidably connected to the limiting rod, and one side of the positioning plate is connected to the processing box.

[0018] In a preferred embodiment, the inner bottom of the processing box is symmetrically provided with plug-in slots, and the plug-in slots are slidably connected to the mounting plate.

[0019] In a preferred embodiment, the processing box is further provided with an exhaust pipe on the side close to the adsorption plate, the exhaust pipe is further provided with a bell mouth on the side close to the adsorption plate, and an exhaust fan is further provided on the exhaust pipe.

[0020] In a preferred embodiment, a collecting shell is further provided at the inner bottom of the cooling box, and sliders are symmetrically provided at the bottom of the collecting shell, and the sliders are slidably connected to the cooling box.

[0021] In a preferred embodiment, a temperature sensor is further provided on the processing box, and the temperature sensor is communicated with the cooling box.

[0022] Compared with the existing technology, the present invention provides a VOCs waste gas adsorption device with the following beneficial effects:

[0023] 1. Through the setting of the cooling box, condenser, solenoid valve and molecular sieve plate, it is achieved that when the exhaust gas enters the cooling box, the high-temperature VOCs exhaust gas can be cooled by the cooling box, the moisture in the exhaust gas can be decomposed into water droplets through the condenser, and the moisture in the exhaust gas can be adsorbed again by the molecular sieve plate to make the exhaust gas dry; this exhaust gas treatment method avoids the problem of conventional treatment methods that the exhaust gas with moisture is brought into contact with activated carbon, resulting in reduced adsorption efficiency of harmful gases.

[0024] 2. Through the setting of the adsorption mechanism, when in use, the limiting rod can be pulled through the limiting ring, limiting rod, tension spring and positioning plate to stretch the tension spring, and then the mounting plate and adsorption plate are inserted into the processing box. The limiting rod is then loosened, and the tension spring rebounds to drive the limiting rod to insert into the inner cavity of the limiting ring to position the mounting plate. This method of replacing the adsorption plate avoids the high cost and high consumption of conventional replacement methods. It solves the problem of traditional VOCs waste gas adsorption equipment that when the exhaust gas containing moisture comes into contact with the activated carbon, the moisture inside the pores occupies the pores, resulting in a decrease in the adsorption efficiency of harmful gases and affecting the exhaust gas adsorption effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained from these drawings without paying any creative work.

[0026] Figure 1 This is a schematic diagram of the overall structure of the VOCs waste gas adsorption device of the utility model;

[0027] Figure 2 This is a schematic cross-sectional view of the VOCs waste gas adsorption device of the present invention;

[0028] Figure 3 This is a schematic structural diagram of the adsorption mechanism of the utility model;

[0029] Figure 4 This is a schematic structural diagram of the gas collecting mechanism of the utility model;

[0030] Figure 5 It is a structural diagram of the exhaust mechanism of the utility model.

[0031]

Main component symbol description

[0032] 1. Processing box; 2. Gas collecting mechanism; 201. Fan; 202. Inlet pipe; 203. Connecting pipe; 204. Outlet pipe; 205. Diffuser shell; 206. Outlet hole; 3. Cooling box; 4. Condenser; 5. Solenoid valve; 6. Molecular sieve plate; 7. Collecting shell; 8. Slider; 9. Adsorption mechanism; 901. Mounting plate; 902. Adsorption plate; 903. Pull handle; 904. Limiting ring; 905. Limiting rod; 906. Positioning plate; 907. Tension spring; 10. Plug slot; 11. Exhaust pipe; 12. Bell mouth; 13. Exhaust fan. DETAILED DESCRIPTION

[0033] The structure of the VOCs waste gas adsorption device is further described in detail below in conjunction with the accompanying drawings and embodiments of the present utility model.

[0034] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0035] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments of the present application. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0036] It should be noted that the terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0037] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0038] As the instruction manual Figure 1-Figure 5 As shown, the utility model provides a technical solution:

[0039] A VOCs waste gas adsorption device is installed at the end of the exhaust pipe of VOCs waste gas, comprising: a treatment box 1 for treating the waste gas, the air inlet end of the treatment box 1 is provided with an air collecting mechanism 2, the air collecting mechanism 2 is connected to the air inlet end of a cooling box 3 arranged in the inner cavity of the treatment box 1, and condensing pipes 4 are provided on both sides of the inner wall of the cooling box 3 to cool the introduced VOCs waste gas; a solenoid valve 5 is also provided on one side of the exhaust end of the cooling box 3, and a molecular sieve plate 6 is fixedly connected to the surface of the side of the solenoid valve 5 away from the cooling box 3 to filter the VOCs waste gas, and an adsorption mechanism 9 for filtering the waste gas is also provided on the side of the molecular sieve plate 6 away from the solenoid valve 5.

[0040] It should be noted that, when in use, the opening and closing of the device is controlled by the gas collecting mechanism 2, and the VOCs waste gas in the exhaust pipe of the VOCs waste gas is introduced into the cooling box 3 for cooling; the opening and closing of the exhaust end of the cooling box 3 is controlled by the solenoid valve 5. When the temperature sensor detects that the VOCs waste gas in the cooling box 3 reaches the set temperature, the solenoid valve 5 is opened to exhaust the VOCs waste gas in the cooling box 3, and in the exhaust process, the molecular sieve plate 6 is used to adsorb the moisture in the waste gas to dry the waste gas. After the moisture in the waste gas is decomposed and filtered, the harmful gas in the waste gas is filtered by the adsorption mechanism 9 and then exhausted, thereby achieving the effect of adsorption and filtration of the VOCs waste gas.

[0041] In a preferred embodiment, Figure 2 and Figure 4As shown, the air collecting mechanism 2 includes a fan 201 fixedly connected to the top of the processing box 1, the air inlet end of the fan 201 is connected to an air inlet pipe 202, the air inlet pipe 202 passes through the inner cavity of the processing box 1 and is connected to a connecting pipe 203, the other end of the connecting pipe 203 passes through the processing box 1 and is located on one side of the processing box 1, and is connected to an air outlet pipe 204 at the exhaust end of the fan 201, the other end of the air outlet pipe 204 passes through the inner cavity of the cooling box 3 and is fixedly connected to a diffusion shell 205, and the surface of the diffusion shell 205 is provided with air outlet holes 206, and the air outlet holes 206 are arranged in a ring array.

[0042] It should be noted that when in use, the VOCs waste gas in the exhaust pipe of the VOCs waste gas is introduced into the connecting pipe 203 by turning on the fan 201, and the VOCs waste gas enters the cooling box 3 along the connecting pipe 203 and the air outlet 206 to be cooled.

[0043] In a preferred embodiment, Figure 2 、 Figure 3 and Figure 4 As shown, the adsorption mechanism 9 includes two mounting plates 901 arranged in the inner cavity of the processing box 1, the inner cavity of the mounting plate 901 is provided with an adsorption plate 902 made of activated carbon material, and a handle 903 is fixedly connected to one side of the mounting plate 901.

[0044] The adsorption mechanism 9 also includes a limiting ring 904 fixedly connected to one side of the mounting plate 901, and the inner cavity of the limiting ring 904 is plugged with a limiting rod 905, and one side of the inner wall of the limiting rod 905 is fixedly connected with a tension spring 907, and the other end of the tension spring 907 is fixedly connected with a positioning plate 906, and the inner cavity of the positioning plate 906 is slidingly connected to the surface of the limiting rod 905, and one side of the positioning plate 906 is fixedly connected to one side of the processing box 1, and the inner bottom of the processing box 1 is symmetrically provided with two plug-in slots 10, and the inner cavity of the plug-in slot 10 is slidingly connected to the bottom of the mounting plate 901.

[0045] like Figure 2 As shown, a collecting shell 7 is provided at the inner bottom of the cooling box 3. Two sliders 8 are symmetrically fixedly connected to the bottom of the collecting shell 7. The sliders 8 are slidably connected to the bottom of the cooling box 3 and the processing box 1. The water droplets solidified after cooling or the residue in the VOCs waste gas are collected through the collecting shell 7.

[0046] It should be noted that if Figure 5 As shown, when in use, the exhaust fan 13, the bell mouth 12 and the exhaust pipe 11 arranged on the side of the processing box 1 close to the adsorption plate 902 are used to suck the adsorbed VOCs waste gas into the exhaust pipe 11 through the bell mouth 12 for exhaust. It should be noted that the above descriptions are all devices with relatively mature applications of existing technologies. The specific models can be selected according to actual needs and will not be elaborated here.

[0047] The temperature sensor on the top of the cooling box 3 can be used to monitor the temperature inside the cooling box 3 in real time. The above descriptions are all devices with relatively mature application in existing technologies. The specific models can be selected according to actual needs and will not be described here.

[0048] During specific use: first, connect the other pipes to the connecting pipe 203, start the fan 201, and transport the exhaust gas through the air inlet pipe 202 to the exhaust pipe 204, and then transport the exhaust gas to the diffusion shell 205 through the exhaust pipe 204, and discharge it into the cooling box 3 through the diffusion shell 205, and then through the air outlet 206, the exhaust gas can be blown into the cooling box 3 evenly and over a large area. When the exhaust gas enters the cooling box 3, the temperature is high during the process of exhaust gas generation, and the moisture in the exhaust gas is decomposed into water droplets through the condenser 4, and then the solenoid valve 5 is opened to allow the exhaust gas to pass through the molecular sieve plate 6 into the inner cavity of the treatment box 1. At the same time, the moisture in the exhaust gas is adsorbed again by the molecular sieve plate 6 to dry the exhaust gas. When the moisture in the exhaust gas is After decomposition and filtration, the harmful gases in the exhaust gas are filtered through the adsorption plate 902. When the adsorption plate 902 needs to be replaced, the limit rod 905 is pulled to stretch the tension spring 907, and the limit rod 905 is separated from the limit ring 904. The mounting plate 901 can be pulled to pull out the adsorption plate 902. When a new adsorption plate 902 needs to be installed, the limit rod 905 is pulled again to stretch the tension spring 907, and then the mounting plate 901 and the adsorption plate 902 are inserted into the interior of the processing box 1, and then the limit rod 905 is loosened. The limit rod 905 is driven by the rebound of the tension spring 907 to insert the limit rod 905 into the inner cavity of the limit ring 904 to position the mounting plate 901, thereby improving the adsorption effect while reducing the replacement cost of the adsorption plate 902.

[0049] First, connect the other pipes to the connecting pipe 203, start the fan 201, and transport the exhaust gas through the air inlet pipe 202 to the exhaust pipe 204, and then transport the exhaust gas to the diffusion shell 205 through the exhaust pipe 204, and discharge it into the cooling box 3 through the diffusion shell 205, and then through the air outlet 206, the exhaust gas can be blown into the cooling box 3 evenly and over a large area. When the exhaust gas enters the cooling box 3, the temperature is high during the process of exhaust gas generation, and the moisture in the exhaust gas is decomposed into water droplets through the condenser 4, and then the solenoid valve 5 is opened to allow the exhaust gas to pass through the molecular sieve plate 6 into the inner cavity of the treatment box 1. At the same time, the moisture in the exhaust gas is adsorbed again by the molecular sieve plate 6 to dry the exhaust gas. When the moisture in the exhaust gas is decomposed and filtered Finally, the harmful gases in the exhaust gas are filtered through the adsorption plate 902. When the adsorption plate 902 needs to be replaced, the limit rod 905 is pulled to stretch the tension spring 907, and the limit rod 905 is separated from the limit ring 904. The mounting plate 901 can be pulled to pull out the adsorption plate 902. When a new adsorption plate 902 needs to be installed, the limit rod 905 is pulled again to stretch the tension spring 907, and then the mounting plate 901 and the adsorption plate 902 are inserted into the interior of the processing box 1, and then the limit rod 905 is loosened. The limit rod 905 is driven by the rebound of the tension spring 907 to insert the limit rod 905 into the inner cavity of the limit ring 904 to position the mounting plate 901, thereby improving the adsorption effect while reducing the replacement cost of the adsorption plate 902.

[0050] When the VOCs waste gas adsorption device of the utility model is used:

[0051] First, connect the other pipes to the connecting pipe 203, start the fan 201, and transport the exhaust gas through the air inlet pipe 202 to the exhaust pipe 204, and then transport the exhaust gas to the diffusion shell 205 through the exhaust pipe 204, and discharge it into the cooling box 3 through the diffusion shell 205, and then through the air outlet 206, the exhaust gas can be blown into the cooling box 3 evenly and over a large area. When the exhaust gas enters the cooling box 3, the temperature is high during the process of exhaust gas generation, and the moisture in the exhaust gas is decomposed into water droplets through the condenser 4, and then the solenoid valve 5 is opened to allow the exhaust gas to pass through the molecular sieve plate 6 into the inner cavity of the treatment box 1. At the same time, the moisture in the exhaust gas is adsorbed again by the molecular sieve plate 6 to dry the exhaust gas. When the moisture in the exhaust gas is decomposed and filtered Finally, the harmful gases in the exhaust gas are filtered through the adsorption plate 902. When the adsorption plate 902 needs to be replaced, the limit rod 905 is pulled to stretch the tension spring 907, and the limit rod 905 is separated from the limit ring 904. The mounting plate 901 can be pulled to pull out the adsorption plate 902. When a new adsorption plate 902 needs to be installed, the limit rod 905 is pulled again to stretch the tension spring 907, and then the mounting plate 901 and the adsorption plate 902 are inserted into the interior of the processing box 1, and then the limit rod 905 is loosened. The limit rod 905 is driven by the rebound of the tension spring 907 to insert the limit rod 905 into the inner cavity of the limit ring 904 to position the mounting plate 901, thereby improving the adsorption effect while reducing the replacement cost of the adsorption plate 902.

[0052] It should be noted that the blower 201, cooling box 3, condenser 4, solenoid valve 5, molecular sieve plate 6 and adsorption plate 902 in the above description are all relatively mature devices in existing technology applications. The specific models can be selected according to actual needs. At the same time, the blower 201, cooling box 3, condenser 4 and solenoid valve 5 can be powered by a built-in power supply or by AC power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0053] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A VOCs waste gas adsorption device, characterized by: include: Processing box (1); An air collecting mechanism (2) is arranged at the air inlet end of the processing box (1); A cooling box (3) is arranged in the processing box (1) and is in communication with the gas collecting mechanism (2), and a condenser pipe (4) is arranged in the cooling box (3); A solenoid valve (5) is provided at the exhaust end of the cooling box (3), and a molecular sieve plate (6) is further provided on the side of the solenoid valve (5) away from the cooling box (3); The adsorption mechanism (9) is arranged on a side of the molecular sieve plate (6) away from the electromagnetic valve (5).

2. A VOCs waste gas adsorption device according to claim 1, characterized in that: The air collecting mechanism (2) comprises a fan (201), the fan (201) being arranged on the processing box (1), and an air inlet pipe (202) being connected to the air inlet end of the fan (201), the air inlet pipe (202) penetrating into the inner cavity of the processing box (1) and being connected to a connecting pipe (203), and an air outlet pipe (204) being connected to the air outlet end of the fan (201), the other end of the air outlet pipe (204) penetrating into the cooling box (3) and being connected to a diffusion shell (205).

3. A VOCs waste gas adsorption device according to claim 2, characterized in that: The diffusion shell (205) is provided with a plurality of air outlet holes (206), and the air outlet holes (206) are arranged in a ring array.

4. A VOCs waste gas adsorption device according to claim 1, characterized in that: The adsorption mechanism (9) comprises two mounting plates (901) arranged in the processing box (1), an adsorption plate (902) made of activated carbon material is arranged in the mounting plate (901), and a handle (903) is arranged on one side of the mounting plate (901).

5. A VOCs waste gas adsorption device according to claim 4, characterized in that: The adsorption mechanism (9) further comprises a limiting ring (904) arranged on one side of the mounting plate (901), a limiting rod (905) being inserted into the limiting ring (904), a tension spring (907) being arranged on one side of the inner wall of the limiting rod (905), and a positioning plate (906) being arranged at the other end of the tension spring (907).

6. A VOCs waste gas adsorption device according to claim 5, characterized in that: The inner cavity of the positioning plate (906) is slidably connected to the limiting rod (905), and one side of the positioning plate (906) is connected to the processing box (1).

7. A VOCs waste gas adsorption device according to claim 4, characterized in that: The inner bottom of the processing box (1) is symmetrically provided with plug-in slots (10), and the plug-in slots (10) are slidably connected to the mounting plate (901).

8. The VOCs waste gas adsorption device according to claim 4, characterized in that: The processing box (1) is further provided with an exhaust pipe (11) on the side close to the adsorption plate (902), the exhaust pipe (11) is further provided with a bell mouth (12) on the side close to the adsorption plate (902), and an exhaust fan (13) is further provided on the exhaust pipe (11).

9. The VOCs waste gas adsorption device according to claim 1, characterized in that: The inner bottom of the cooling box (3) is further provided with a collecting shell (7), and the bottom of the collecting shell (7) is symmetrically provided with sliders (8), and the sliders (8) are slidably connected to the cooling box (1).

10. The VOCs waste gas adsorption device according to claim 1, characterized in that: The processing box (1) is also provided with a temperature sensor, which is in communication with the cooling box (3).

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