Resin regeneration device for treating organic waste gas

Abstract

The utility model discloses a resin regeneration device for treating organic waste gas, which belongs to the field of organic waste gas treatment and is characterized in that a plurality of distribution pipes are arranged in a tank body of the resin regeneration device, a plurality of gas outlets are formed in the distribution pipes, and the organic waste gas enters from a waste gas inlet at the bottom of the tank body and is exhausted from a waste gas exhaust port at the top of the tank body after being purified; meanwhile, a first steam opening and a second steam opening are formed in the side wall of the tank body, when the resin is in an adsorption saturation state, introduction of the organic waste gas into the tank body is stopped, the first steam opening and the second steam opening serve as a steam inlet and a steam outlet, steam is introduced into the resin through air outlet holes of a distribution pipe, and regeneration of the resin is achieved; by adopting the device, resin does not need to be replaced, so that the workload caused by resin replacement is reduced, the organic waste gas treatment efficiency is improved, and meanwhile, the waste gas treatment effect is ensured; the device is simple in structure and principle and convenient to implement, operate and maintain, and has good popularization and application value.

Description

Technical Field

[0001] The utility model belongs to the field of organic waste gas treatment, and in particular relates to a resin regeneration device for treating organic waste gas. Background Art

[0002] At a time when environmental protection is increasingly valued, the problem of organic waste gas emissions has become one of the sources of environmental pollution that cannot be ignored in industrial production and daily activities; organic waste gas usually contains a variety of harmful substances (target factors), such as volatile organic compounds (VOCs). If the above substances are directly discharged into the atmosphere without treatment, they will not only have a serious impact on air quality, but also cause potential harm to human health and the ecosystem.

[0003] In order to effectively control and reduce the emission of organic waste gas, various waste gas treatment technologies have emerged; among them, resin treatment of organic waste gas technology has attracted much attention due to its high efficiency, economy and environmental protection. This technology uses specific resin materials to adsorb harmful substances (target factors) in the waste gas, thereby achieving waste gas purification and emission reduction; for example, Chinese patent CN218107237U discloses a mobile VOCs adsorption equipment, which can be moved to the location of the waste gas at will, and then the waste gas is adsorbed by resin and discharged into the atmosphere, thereby reducing the VOCs concentration in the environment; however, the above technical solution also has certain limitations, which are specifically manifested in that: although the harmful substances (target factors) in the waste gas can be effectively removed (recovered) by the resin adsorbent, once the resin adsorbent is saturated with adsorption, if it lacks regeneration function, it will lead to a decrease in equipment processing efficiency, increase operating costs, and even require replacement of new adsorbents, which not only wastes resources but also imposes an additional burden on the environment.

[0004] It can be seen that the existing organic waste gas adsorption device lacks resin regeneration function. If it is not maintained and replaced in time, the adsorption efficiency will be seriously reduced, which will greatly affect the waste gas treatment effect. Utility Model Content

[0005] The utility model aims to provide a resin regeneration device for treating organic waste gas, so as to solve the technical problem that the existing organic waste gas adsorption device lacks the resin regeneration function, and if the maintenance and replacement are not timely, the adsorption efficiency will be seriously reduced, which greatly affects the waste gas treatment effect.

[0006] In order to achieve the above purpose, the utility model adopts the following technical contents:

[0007] A resin regeneration device for treating organic waste gas, comprising a tank body;

[0008] The tank body is provided with an exhaust gas inlet at the bottom and an exhaust gas outlet at the top;

[0009] The tank body is provided with a resin

[0010] A plurality of distribution pipes are inserted into the resin in the vertical direction, and a plurality of air outlet holes are provided on the distribution pipes;

[0011] The side wall of the tank body is provided with a first steam port and a second steam port;

[0012] The first steam port is connected to one end of the distribution pipe, and the second steam port is connected to the other end of the distribution pipe.

[0013] Furthermore, a plurality of the distribution pipes are arranged in a center-surrounding manner.

[0014] Furthermore, the geometric center of the centrally located distribution pipe and the geometric center of the tank body are located on the same straight line.

[0015] Furthermore, the number of distribution pipes arranged along the circumferential direction inside the tank body is 8.

[0016] Furthermore, the first steam port is connected to a first steam main pipeline, and the first steam main pipeline is connected to one end of each corresponding distribution pipe through a plurality of first steam branch pipelines;

[0017] The second steam port is connected to a second steam main pipeline, and the second steam main pipeline is connected to the other end of each corresponding distribution pipe through a plurality of second steam branch pipelines.

[0018] Furthermore, the exhaust gas inlet, the exhaust gas outlet, the first steam outlet and the second steam outlet are all provided with valves for controlling gas flow.

[0019] Furthermore, when the resin regeneration device performs regeneration, low-pressure water vapor is introduced into the first steam port or the second steam port.

[0020] Furthermore, the pressure of the introduced water vapor is 0.1MPa-0.3MPa.

[0021] Furthermore, the plurality of air outlet holes on the distribution pipe are arranged in an array.

[0022] Furthermore, the tank body is made of 304 or 316L stainless steel.

[0023] Compared with the prior art, the utility model has the following beneficial effects:

[0024] The utility model provides a resin regeneration device for treating organic waste gas. The resin regeneration device is provided with a plurality of distribution pipes for adsorbing harmful substances (target factors) in the organic waste gas in a tank body. The distribution pipes are provided with air outlets. The organic waste gas enters from the waste gas inlet at the bottom of the tank body, and is discharged from the waste gas exhaust port at the top after being purified. At the same time, a first steam port and a second steam port are provided on the side wall of the tank body. When the resin is in adsorption saturation, the organic waste gas is stopped from being introduced into the tank body. The first steam port and the second steam port are used as the steam inlet and outlet, and then water vapor is introduced into the resin through the air outlet of the distribution pipe, so that the resin is regenerated. The device does not need to replace the resin, which reduces the workload caused by replacing the resin, improves the efficiency of organic waste gas treatment, and ensures the waste gas treatment effect. The structure and principle of the device are simple, and the implementation and operation and maintenance are convenient, so it has good promotion and application value.

[0025] Preferably, in the utility model, taking into account the problem that when water vapor is introduced into the resin, due to the tank structure, some areas of the resin may not be able to effectively contact the water vapor; the device arranges the distribution pipes in a center-surround arrangement, which can maximize the use of the internal space of the tank, improve the exhaust gas treatment efficiency, and ensure that water vapor can pass through each distribution pipe evenly, maximize the effective contact with the resin, increase the maximum contact area, and achieve completely dead-angle-free resin regeneration.

[0026] Preferably, in the utility model, the geometric center of the centrally located distribution pipe is aligned with the geometric center of the tank body, which helps to ensure that the exhaust gas is evenly distributed in the tank body and improve the treatment effect and efficiency.

[0027] Preferably, in the utility model, 8 distribution pipes are arranged along the circumferential direction of the inner part of the tank body, which can achieve structural optimization and rational use of space while ensuring the treatment effect.

[0028] Preferably, in the utility model, the first steam main pipe and the second steam main pipe are connected with the corresponding distribution pipes, and the first steam main pipe and the second steam main pipe can both be used as steam inlet or steam outlet, and can be sequentially formed into a two-way steam flow channel, thereby improving the effect of resin regeneration and achieving uniform distribution of steam, thereby improving the efficiency and uniformity of resin regeneration.

[0029] Preferably, in the utility model, valves for controlling the gas flow are provided at the waste gas inlet, the waste gas exhaust port, the first steam port and the second steam port; the organic waste gas adsorption work and the resin regeneration work are performed independently, and when the organic waste gas adsorption work is required, the valves of the first steam port and the second steam port are closed; when the resin regeneration work is required, the valves of the waste gas inlet and the waste gas exhaust port are closed; and the setting of the valves can accurately control the flow of waste gas and steam, thereby optimizing the treatment process and the effect of resin regeneration.

[0030] Preferably, in the utility model, when the resin regeneration device is performing regeneration work, the introduction of low-pressure water vapor can effectively remove organic matter adsorbed in the resin, restore the adsorption capacity of the resin, and extend the service life of the resin.

[0031] Preferably, in the present invention, by controlling the pressure of the introduced water vapor within the range of 0.1 MPa-0.3 MPa, the resin regeneration effect can be ensured while avoiding damage to the resin caused by excessively high pressure.

[0032] Preferably, in the utility model, the plurality of air outlet holes on the distribution pipe are arranged in an array, so that the water vapor introduced into the resin is more uniform and stable, thereby ensuring the regeneration effect of the resin.

[0033] Preferably, in the present invention, 304 or 316L stainless steel is used to make the tank body, so that the tank body has good corrosion resistance and strength, which can ensure the long-term stable operation of the device and at the same time ensure the safety of exhaust gas treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A schematic diagram of the structure of a resin regeneration device for treating organic waste gas provided in an embodiment of the utility model;

[0035] Figure 2 A schematic diagram of a resin regeneration area of ​​a resin regeneration device for treating organic waste gas provided by an embodiment of the utility model;

[0036] Figure 3 A radial cross-sectional view of a resin regeneration device for treating organic waste gas provided in an embodiment of the utility model along a tank body.

[0037] Reference numerals:

[0038] Exhaust gas inlet-1; exhaust gas outlet-2; distribution pipe-3; first steam outlet-4; second steam outlet-5; steam main pipeline-6; steam branch pipeline-7; tank body-8; resin-9. DETAILED DESCRIPTION

[0039] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the following specific embodiments further describe the utility model in detail. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0040] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0041] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0043] In the description of the embodiments of the present utility model, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply 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 utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0044] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0045] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0046] The utility model is further described in detail below with reference to the accompanying drawings:

[0047] Example 1

[0048] As mentioned in the background technology, although the current organic waste gas adsorption equipment can effectively remove (absorb) harmful substances (target factors) in the waste gas through resin adsorbents, once the resin adsorbent is saturated with adsorption, if it lacks regeneration function, it will lead to a decrease in equipment processing efficiency, increase operating costs, and even require replacement of new adsorbents. This not only increases the workload, but also causes serious waste of resources and imposes an additional burden on the environment.

[0049] In order to solve the above problems, this embodiment provides a resin regeneration device for treating organic waste gas. This device utilizes the regeneration function of the resin and completes the regeneration of the resin by introducing water vapor into the tank body. The adsorption efficiency of the device can be guaranteed without replacing the resin.

[0050] like Figure 1 As shown, this embodiment provides a resin regeneration device for treating organic waste gas, and the device includes a tank body 8, a waste gas exhaust port 2 is opened at the top of the tank body 8, and a waste gas inlet port 1 is opened at the bottom. Of course, they can be interchanged, that is, the waste gas inlet is opened at the top and the waste gas discharge port is opened at the bottom; a whole block of resin 9 ( Figure 1 Here, the resin 9 can be fixed inside the tank body 8 by means of upper and lower grate plate clamps, or the resin 9 can be placed in an adsorption frame, which is fixed inside the tank body 8, thereby ensuring the stability of the entire device structure.

[0051] In this embodiment, in order to improve the corrosion resistance and strength of the tank body 8, 304 or 316L stainless steel is used to make the tank body, which can ensure the long-term stable operation of the device and at the same time ensure the safety of exhaust gas treatment.

[0052] In this embodiment, styrene resin or styrene divinyl benzene resin is used as the material of the resin 9. These resins have good adsorption performance and durability and can effectively remove organic matter in the exhaust gas.

[0053] In this embodiment, a plurality of distribution pipes 3 are arranged inside the tank body 8; the plurality of distribution pipes 3 are inserted into the resin 9 along the vertical direction; a plurality of air outlet holes are arranged in an array on the distribution pipe 3 for introducing water vapor into the resin 9; one end of the distribution pipe 3 is connected to the first steam port 4, and the other end is connected to the second steam port 5.

[0054] During the adsorption process of organic waste gas, the organic waste gas enters from the waste gas inlet 1 at the bottom of the tank body 8, passes through a plurality of distribution pipes 3, and adsorbs harmful substances (target factors) in the organic waste gas. The purified waste gas is discharged from the waste gas exhaust port 2 at the top of the tank body 8, thereby realizing the adsorption treatment of the organic waste gas.

[0055] In this embodiment, a first steam port 4 and a second steam port 5 are provided on the side wall of the tank body 8; both the first steam port 4 and the second steam port 5 can be used as steam inlets or steam outlets, that is, the first steam port 4 is used as a steam inlet and the second steam port 5 is used as a steam outlet; or the first steam port 4 is used as a steam outlet and the second steam port 5 is used as a steam inlet; water vapor is realized in one inlet and out one out, taking the first steam port 4 as a steam inlet and the second steam port 5 as a steam outlet as an example, the specific working principle is as follows:

[0056] During the regeneration process of the resin, the valves of the waste gas inlet 1 and the waste gas exhaust port 2 are first closed to suspend the adsorption of organic waste gas; then low-pressure water vapor is introduced into the first steam port 4, and the water vapor enters the resin 9 through the air outlet of the distribution pipe 3 to purify the resin 9, and then the resin 9 is regenerated. The treated water vapor is discharged through the second steam port 5, and the gas is collected by the collection device.

[0057] In this embodiment, the opening of the first steam port 4 and the second steam port 5, as well as the setting of the distribution pipe 3, are convenient for the regeneration of the resin 9. The introduction of low-pressure water vapor can effectively remove the organic matter adsorbed in the resin, restore the adsorption capacity of the resin, and extend the service life of the resin. This effectively solves the problem that the existing organic waste gas adsorption device lacks the resin regeneration function. If the maintenance and replacement are not timely, the adsorption efficiency will be seriously reduced, which will greatly affect the waste gas treatment effect.

[0058] Example 2

[0059] This embodiment also provides another resin regeneration device for treating organic waste gas. The basic structure is the same as that of Example 1. It is optimized and improved on the basis of Example 1. The specific differences are:

[0060] Considering that due to the structure of the tank, during the resin regeneration process, part of the resin 9 cannot be effectively contacted with the water vapor, resulting in low resin regeneration efficiency, in order to achieve complete contact between the resin 9 and the water vapor without dead angles, such as Figure 2 and Figure 3As shown, in this embodiment, a plurality of distribution pipes 3 are arranged in a center-surrounding manner. The center-surrounding arrangement of the distribution pipes 3 can maximize the use of the internal space of the tank, improve the exhaust gas treatment efficiency, and ensure that the water vapor can pass through the entire resin 9 evenly, thereby increasing the maximum contact area of ​​the water vapor and regenerating the resin without dead angles; Figure 3 As shown, the geometric center of the distribution pipe 3 located in the center is aligned with the geometric center of the tank body 8, which helps to ensure that the exhaust gas is evenly distributed in the tank body and improve the treatment effect and efficiency; at the same time, 8 distribution pipes 3 are arranged along the circumferential direction inside the tank body, which can achieve structural optimization and rational use of space while ensuring the treatment effect.

[0061] like Figure 2 As shown, in this embodiment, the first steam main pipeline and the second steam main pipeline are connected to the corresponding distribution pipe 3, and the first steam port 4 and the second steam port 5 can be used as a steam inlet or a steam outlet, and can be formed into a two-way steam flow channel according to actual needs, which improves the effect of resin regeneration and can achieve uniform distribution of steam, thereby improving the efficiency and uniformity of resin regeneration; taking the first steam port 4 as an example, the first steam port 4 is connected to the steam main pipeline 6 and multiple steam branch pipes 7 in sequence, and is connected to the distribution pipe 3 through multiple steam branch pipes 7, and the corresponding numbers of the two are the same, so that the distribution pipe 3 is completely in contact with water vapor, and the regeneration efficiency is maximized; the distribution pipe 3 is provided with a number of air outlet holes arranged in an array along the pipe wall, and an open-pore air distribution area is formed as a whole, which is also conducive to the contact between water vapor and resin 9, further improving the regeneration efficiency, making the contact surface of the resin the largest and the air distribution most uniform; through actual verification, the regeneration rate of resin regeneration using this device reaches 99.9%, and the regeneration of resin without dead ends is achieved.

[0062] In this embodiment, the pressure of the introduced water vapor is within the range of 0.1 MPa-0.3 MPa, which can ensure the effect of resin regeneration while avoiding damage to the resin caused by excessive pressure.

[0063] In this embodiment, a pressure sensor can be further provided inside the tank body to facilitate real-time monitoring of the internal pressure, and the flow rate of gas entering the tank body can be controlled by controlling the gate valve, thereby ensuring smooth operation.

[0064] The above embodiment is only one of the implementation methods that can realize the technical solution of the utility model. The scope of protection required by the utility model is not limited only to this embodiment, but also includes within the technical scope disclosed by the utility model, any changes, replacements and other implementation methods that can be easily thought of by any technician familiar with the technical field.

Claims

1. A resin regeneration device for treating organic waste gas, characterized in that: comprising a tank body (8); The tank body (8) is provided with an exhaust gas inlet (1) at the bottom and an exhaust gas outlet (2) at the top; The tank body (8) is provided with a resin (9). A plurality of distribution pipes (3) are inserted into the resin (9) in a vertical direction, and a plurality of air outlet holes are provided on the distribution pipes (3); The side wall of the tank body (8) is provided with a first steam port (4) and a second steam port (5); The first steam port (4) is connected to one end of the distribution pipe (3), and the second steam port (5) is connected to the other end of the distribution pipe (3).

2. A resin regeneration device for treating organic waste gas according to claim 1, characterized in that: A plurality of distribution pipes (3) are arranged in a centrally surrounding manner.

3. A resin regeneration device for treating organic waste gas according to claim 2, characterized in that: The geometric center of the centrally located distribution pipe (3) and the geometric center of the tank body (8) are located on the same straight line.

4. A resin regeneration device for treating organic waste gas according to claim 3, characterized in that: The number of distribution pipes (3) arranged along the circumferential direction inside the tank body (8) is 8.

5. The resin regeneration device for treating organic waste gas according to claim 1, characterized in that: The first steam port (4) is connected to a first steam main pipeline, and the first steam main pipeline is connected to one end of each corresponding distribution pipe (3) through a plurality of first steam branch pipelines; The second steam port (5) is connected to a second steam main pipeline, and the second steam main pipeline is connected to the other end of each corresponding distribution pipe (3) through a plurality of second steam branch pipelines.

6. The resin regeneration device for treating organic waste gas according to claim 1, characterized in that: The exhaust gas inlet (1), the exhaust gas outlet (2), the first steam outlet (4) and the second steam outlet (5) are all provided with valves for controlling the gas flow.

7. The resin regeneration device for treating organic waste gas according to claim 1, characterized in that: When the resin regeneration device is performing regeneration operation, low-pressure water vapor is introduced into the first steam port (4) or the second steam port (5).

8. The resin regeneration device for treating organic waste gas according to claim 7, characterized in that: The pressure of the water vapor introduced is 0.1MPa-0.3MPa.

9. The resin regeneration device for treating organic waste gas according to claim 1, characterized in that: The plurality of air outlet holes on the distribution pipe (3) are arranged in an array.

10. The resin regeneration device for treating organic waste gas according to claim 1, characterized in that: The tank body (8) is made of 304 or 316L stainless steel.

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