Waste gas treatment device for collecting organic waste gas

Abstract

The utility model discloses a waste gas treatment device for collecting organic waste gas, and relates to the technical field of waste gas treatment. The waste gas treatment device comprises a condenser, a waste liquid collecting tank, a gas outlet pipeline and a connecting pipeline, the condenser is used for cooling organic waste gas, the waste liquid collecting tank is located below the side of the condenser and connected to the gas inlet pipeline, and the gas outlet pipeline is located above the condenser and connected to the gas inlet pipeline. The air outlet pipeline is arranged on the side, away from the waste liquid collecting tank, of the condenser and connected to the main exhaust pipeline, the connecting pipeline comprises a first pipeline and a second pipeline, the first pipeline inclines from the top of the waste liquid collecting tank to the bottom of the condenser, and the second pipeline inclines from the top of the condenser to the bottom of the air outlet pipeline. According to the waste gas treatment device disclosed by the utility model, organic waste gas is condensed and collected in advance, so that pipeline blockage caused by direct emission of the organic waste gas into the main exhaust pipeline is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to a waste gas treatment device for collecting organic waste gas. Background Art

[0002] Interfacial polymerization is a common process for producing thin-film composite nanofiltration and reverse osmosis membranes. Typically, an aqueous solution and an organic alkane solution react at the interface to form a membrane. Further cross-linking and membrane drying are then carried out through heating and baking, ultimately yielding the finished membrane. During the baking phase, organic waste gas containing volatile alkanes is generated. These organic waste gases are volatile, toxic, flammable, and explosive. Direct discharge of these waste gases can pollute the environment and pose health risks.

[0003] In the existing technology, the method for collecting organic waste gas is mostly to use activated carbon adsorption. When the waste gas collection pipeline is long, the volatile alkane vapor will cool down along the way in the pipeline, and steam liquefaction will occur, causing the organic liquid to gather in the form of droplets in the pipeline. Long-term accumulation can easily cause hidden dangers such as blockage of the waste gas removal pipeline and failure of the activated carbon adsorption system. Utility Model Content

[0004] One purpose of the utility model is to provide a waste gas treatment device for collecting organic waste gas, so as to solve the technical problem in the prior art that the organic waste gas is directly discharged into the activated carbon of the main exhaust pipe, which easily causes pipe blockage.

[0005] Another object of the present invention is to improve the safety of the exhaust gas treatment device.

[0006] According to the purpose of the present invention, the present invention provides a waste gas treatment device for collecting organic waste gas, comprising:

[0007] Condenser, used to cool down the organic waste gas;

[0008] A waste liquid collecting tank is located at the lower side of the condenser and is connected to the air inlet pipe;

[0009] An air outlet pipe is located above the condenser and is arranged on a side of the condenser away from the waste liquid collection tank, and is connected to a main exhaust pipe;

[0010] The connecting pipeline includes a first pipeline and a second pipeline, wherein the first pipeline is arranged to be inclined from the top of the waste liquid collection tank toward the bottom of the condenser, and the second pipeline is arranged to be inclined from the top of the condenser toward the bottom of the outlet pipe.

[0011] Optionally, the diameter of the waste liquid collection tank is smaller than the diameter of the condenser, and the cross-section of the first pipeline gradually increases from bottom to top.

[0012] Optionally, the diameter of the air outlet pipe is smaller than the diameter of the condenser, and the cross-section of the second pipeline gradually decreases from bottom to top.

[0013] Optionally, the diameter of the waste liquid collection tank is larger than the diameter of the air outlet pipe.

[0014] Optionally, the waste liquid collection tank further comprises:

[0015] A visual window is arranged on the side of the waste liquid collecting tank.

[0016] Optionally, the waste liquid collection tank further comprises:

[0017] The drainage channel is located at the bottom of the waste liquid collecting tank, and the drainage channel also has a valve, and the valve is used to control the on-off of the drainage channel.

[0018] Optionally, the waste liquid collection tank is made of stainless steel.

[0019] Optionally, the exhaust gas treatment device further includes:

[0020] A gas detection alarm is arranged on the side wall of the gas outlet pipe, and the gas detection alarm is used to issue an alarm when the organic gas concentration in the gas outlet pipe exceeds a preset concentration.

[0021] Optionally, the condenser is a coil condenser.

[0022] Optionally, the refrigerant medium of the condenser is any one of water, ice-water mixture, difluorochloromethane or tetrafluoroethane.

[0023] The waste gas treatment device of this embodiment is provided with a waste liquid collecting tank on the lower side of the condenser and an air outlet pipe on the upper side. The air outlet pipe is provided on the side of the condenser away from the waste liquid collecting tank, and a first pipe and a second pipe are respectively provided between the condenser, the waste liquid collecting tank and the air outlet pipe, so as to form a first pipe and a second pipe with an inclined structure between the air outlet pipe and the condenser and between the condenser and the waste liquid collecting tank, so that the path of the organic waste gas entering the condenser and the air outlet pipe is extended, that is, the path of the organic waste gas entering the main exhaust pipe is extended, the organic waste gas entering the front section of the main exhaust pipe is cooled, and the volatile organic waste gas is liquefied and collected in advance at the front end of the main exhaust pipe, so as to avoid the organic waste gas directly entering the main exhaust pipe and causing liquid accumulation, thereby preventing the pipe from being blocked due to long-term accumulation of organic waste gas and the failure of the activated carbon adsorption system, thereby increasing the safety of the production process.

[0024] Furthermore, the exhaust gas treatment device of this embodiment also includes a gas detection alarm, which is arranged in the exhaust pipe. The gas detection alarm can monitor the concentration of gas in the exhaust pipe, thereby monitoring the gas concentration in the main exhaust pipe, and timely warning to avoid the risk of combustion and explosion caused by excessive gas concentration in the exhaust pipe or the main exhaust pipe, thereby improving the safety of the exhaust gas treatment device.

[0025] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0027] Figure 1 is a schematic front view of an exhaust gas treatment device according to one embodiment of the present utility model;

[0028] Figure 2 It is a schematic side view of an exhaust gas treatment device according to an embodiment of the present invention.

[0029] Reference numerals:

[0030] 100-waste gas treatment device, 10-condenser, 20-waste liquid collection tank, 30-air inlet pipe, 40-air outlet pipe, 50-connecting pipe, 51-first pipe, 52-second pipe, 21-visual window, 22-drainage channel, 221-valve, 60-gas detection alarm. DETAILED DESCRIPTION

[0031] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0032] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It will be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some, rather than all, structures related to the present application are shown in the accompanying drawings. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0033] As used herein, the terms "comprise," "comprising," and "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements but may optionally include steps or elements not listed, or may optionally include other steps or elements inherent to the process, method, product, or apparatus.

[0034] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0035] Figure 1 This is a schematic front view of an exhaust gas treatment device according to an embodiment of the present invention. Figure 2 It is a schematic side view of an exhaust gas treatment device according to an embodiment of the present invention.

[0036] like Figure 1 As shown, the utility model provides a waste gas treatment device 100 for collecting organic waste gas, the waste gas treatment device 100 is arranged at the front end of the main exhaust pipe, and the waste gas treatment device 100 includes a condenser 10, a waste liquid collection tank 20, an air outlet pipe 40 and a connecting pipe 50. The condenser 10 is used to cool the organic waste gas, the waste liquid collection tank 20 is located at the side and lower part of the condenser 10, the waste liquid collection tank 20 is connected to the air inlet pipe 30, the air outlet pipe 40 is located above the condenser 10, and the air outlet pipe 40 is arranged on the side of the condenser 10 away from the waste liquid collection tank 20, the air outlet pipe 40 is connected to the main exhaust pipe, and the connecting pipe 50 includes a first pipe 51 and a second pipe 52. The first pipe 51 is arranged to be inclined from the top of the waste liquid collection tank 20 toward the bottom of the condenser 10, and the second pipe 52 is arranged to be inclined from the top of the condenser 10 toward the bottom of the air outlet pipe 40. Here, the organic waste gas enters the condenser 10 and is cooled to form waste liquid which flows to the waste liquid collection tank 20. A small amount of uncooled gas flows into the main exhaust pipe through the outlet pipe 40 and is discharged through the main exhaust pipe.

[0037] In this embodiment, a waste liquid collection tank 20 is provided at the lower side of the condenser 10, and an air outlet pipe 40 is provided at the upper side. The air outlet pipe 40 is provided on the side of the condenser 10 away from the waste liquid collection tank 20, and a first pipe 51 and a second pipe 52 are provided between the condenser 10 and the waste liquid collection tank 20 and the air outlet pipe 40, respectively. The first pipe 51 is provided to be inclined from the top of the waste liquid collection tank 20 toward the bottom of the condenser 10, and the second pipe 52 is provided to be inclined from the top of the condenser 10 toward the bottom of the air outlet pipe 40, so as to provide a heat dissipation system between the air outlet pipe 40 and the condenser 10 and the condenser 10. A first pipeline 51 and a second pipeline 52 with an inclined structure are formed between the waste liquid collection tank 20, so that the path of the organic waste gas entering the condenser 10 and the outlet pipe 40 is extended, that is, the path of the organic waste gas entering the main exhaust pipe is extended, and the organic waste gas entering the front section of the main exhaust pipe is cooled, so that the volatile organic waste gas is liquefied and collected in advance at the front end of the main exhaust pipe, avoiding the organic waste gas from directly entering the main exhaust pipe and causing liquid accumulation, thereby preventing the pipe from being blocked due to long-term accumulation of organic waste gas and the failure of the activated carbon adsorption system, thereby increasing safety in the production process.

[0038] In this embodiment, the waste liquid collection tank 20 is located below the condenser 10 and is connected to the air intake pipe 30, so that the waste liquid generated during the condensation process can flow smoothly into the waste liquid collection tank 20, avoiding the accumulation and leakage of waste liquid inside the exhaust gas treatment device 100. That is, the provision of the waste liquid collection tank 20 ensures the effective collection and centralized treatment of waste liquid, avoiding environmental pollution. Here, the waste liquid collection device extends in a vertical direction, and the air intake pipe 30 is arranged perpendicular to the extension direction of the waste liquid collection tank 20. This can reduce the eddy current and resistance of the organic waste gas in the air intake pipe 30, allowing the organic waste gas to enter the condenser 10 more smoothly for cooling, and the pressure distribution of the exhaust gas treatment device 100 is more uniform, which is conducive to the stable operation of the exhaust gas treatment device 100. At the same time, the air intake pipe 30 is arranged perpendicular to the extension direction of the waste liquid collection tank 20, which also helps prevent the waste liquid from flowing back into the air intake pipe 30.

[0039] In this embodiment, the waste liquid collection tank 20, the air outlet pipe 40, and the air inlet pipe 30 are all rectangular parallelepiped structures. The rectangular parallelepiped structure has excellent mechanical stability, can evenly disperse external forces, reduce stress concentration, and thus improve the overall load-bearing capacity and deformation resistance. That is, the waste liquid collection tank 20 with a rectangular parallelepiped structure can effectively resist the gravity of the waste liquid and prevent the tank body from deforming or rupturing. For the air outlet pipe 40 and the air inlet pipe 30, the rectangular parallelepiped structure can ensure the stability and durability of the pipes during fluid flow. Moreover, the rectangular parallelepiped-shaped pipes and tank bodies can be manufactured through simple processes such as cutting, bending, and welding, which not only reduces production costs but also improves production efficiency. In addition, the standardized design of the rectangular parallelepiped structure makes the different components more interchangeable, facilitates maintenance and replacement, and improves space utilization. In other embodiments, the waste liquid collection tank 20, the air outlet pipe 40, and the air inlet pipe 30 can also have a cubic structure or a cylindrical structure.

[0040] In this embodiment, the outlet duct 40 is located above the condenser 10 and on the side of the condenser 10 away from the waste liquid collection tank 20 to ensure that the organic waste gas that has undergone condensation can be discharged smoothly. Furthermore, the outlet duct 40 is connected to the main exhaust duct, allowing the treated organic waste gas to be discharged safely and orderly into the atmosphere. The design of the outlet duct 40 takes into account the flowability and discharge efficiency of the organic waste gas, ensuring the overall operational effectiveness of the waste gas treatment device 100.

[0041] In a further embodiment, the diameter of the waste liquid collection tank 20 is smaller than the diameter of the condenser 10, and the cross-section of the first pipeline 51 gradually increases from bottom to top. In this embodiment, the diameter of the waste liquid collection tank 20 is smaller than the diameter of the condenser 10, and the cross-section of the first pipeline 51 gradually increases from bottom to top, so that before the organic waste gas enters the condenser 10, the diameter of the first pipeline 51 gradually expands, the flow rate gradually decreases, and the pressure gradually decreases. According to the principles of fluid mechanics, the reduction in flow rate and pressure is conducive to the condensation of the organic waste gas, making it easier to be captured by the condenser 10 and condensed to form a liquid. At the same time, by setting the diameter of the first pipeline 51 between the waste liquid collection tank 20 and the condenser 10 to gradually expand, the condensation efficiency can be improved, so that the organic waste gas is condensed into liquid in a shorter time, thereby reducing the working time and energy consumption of the condenser 10.

[0042] In a further embodiment, the diameter of the gas outlet pipe 40 is smaller than the diameter of the condenser 10, and the cross-section of the second pipe 52 gradually decreases from bottom to top. In this embodiment, when the gas cooled by the condenser 10 passes through the gradually decreasing gas outlet pipe 40, according to the Bernoulli equation of fluid mechanics, the flow rate of the gas will increase, and at the same time, the static pressure of the gas will decrease while the dynamic pressure will increase, which will help the gas flow out of the condenser 10 faster and reduce the gas residence time in the condenser 10, thereby improving the working efficiency of the condenser 10. At the same time, the diameter of the second pipe 52 is set to gradually decrease, which can enhance the sealing between the pipe and the connector. As the pipe diameter decreases, the gap at the connection will also decrease accordingly, thereby reducing the possibility of gas leakage.

[0043] In a further embodiment, the diameter of the waste liquid collection tank 20 is larger than the diameter of the gas outlet pipe 40. In this embodiment, the larger diameter of the waste liquid collection tank 20 facilitates the smooth flow of waste liquid after cooling by the condenser 10, reduces the flow resistance of the waste liquid, and avoids blockage and accumulation. The smaller diameter of the gas outlet pipe 40 also increases the flow rate of the gas, helping the gas to be discharged from the system more efficiently. In other words, the spacious design of the waste liquid collection tank 20 enables the waste liquid to be quickly collected and processed, thereby improving the efficiency of waste liquid processing. The smaller diameter of the gas outlet pipe 40 can more effectively control the discharge rate and amount of the gas, ensuring that the gas pressure within the waste gas treatment device 100 remains stable.

[0044] In a further embodiment, the waste liquid collection tank 20 further includes a visual window 21, which is provided on the side of the waste liquid collection tank 20. In this embodiment, by providing an observation window in the waste liquid collection tank 20, the liquid accumulation formed by the condensation of the organic waste gas in the exhaust pipe can be observed, thereby preventing the waste liquid collection tank 20 from being overfilled and overflowing with condensed waste liquid. The condensation effect can be judged through the observation window, and the temperature of the condensate can be adjusted in time to improve the condensation efficiency of the condenser 10.

[0045] In a further embodiment, the waste liquid collection tank 20 also includes a drainage channel 22, which is located at the bottom of the waste liquid collection tank 20, and the drainage channel 22 also has a valve 221, which is used to control the on and off of the drainage channel 22. In this embodiment, the drainage channel 22 is located at the bottom of the waste liquid collection tank 20, ensuring that the waste liquid can naturally flow to the drainage channel 22 under the action of gravity, thereby achieving efficient drainage, and the design of the valve 221 makes the drainage process more flexible and controllable. At the same time, the valve 221, as a key component of the drainage channel 22, can ensure that the waste liquid is effectively prevented from leaking in the closed state, avoiding potential harm to the environment and personnel caused by the leakage of waste liquid.

[0046] In a further embodiment, the waste liquid collection tank 20 is made of stainless steel. In this embodiment, stainless steel has excellent corrosion resistance and can resist the erosion of various chemical substances, that is, the stainless steel waste liquid collection tank 20 can be used for a long time in a harsh chemical environment without corrosion or leakage. In addition, stainless steel has high mechanical strength and can withstand greater pressure and weight, so that the waste liquid collection tank 20 made of stainless steel has excellent structural stability and durability when processing and storing large amounts of waste liquid. In addition, stainless steel is a recyclable material with good environmental performance. After the service life of the waste liquid collection tank 20 ends, it can be recycled and reused to reduce the impact on the environment.

[0047] In a further embodiment, the exhaust gas treatment device 100 further includes a gas detection alarm 60, which is disposed on the sidewall of the outlet pipe 40. The gas detection alarm 60 is configured to sound an alarm when the organic gas concentration in the outlet pipe 40 exceeds a preset concentration. In this embodiment, by disposing the gas detection alarm 60 in the outlet pipe 40, the concentration of gas in the outlet pipe 40 can be monitored, thereby monitoring the gas concentration in the main exhaust pipe, providing a timely warning, and avoiding the risk of combustion and explosion caused by excessive gas concentration in the outlet pipe 40 or the main exhaust pipe, thereby improving the safety of the exhaust gas treatment device 100.

[0048] In a further embodiment, the condenser 10 is a coil-type condenser 10. In this embodiment, the coil-type condenser 10 increases the heat exchange area by increasing the length and curvature of the pipe, thereby improving the heat exchange efficiency, so that the condenser 10 can condense the organic waste gas into liquid in a shorter time, thereby improving the overall efficiency of the refrigeration system of the condenser 10. In addition, the coil-type condenser 10 has a compact structure and occupies a small space, which can reduce the space occupied by the waste gas collection device and improve space utilization. The coil-type condenser 10 is usually made of corrosion-resistant materials such as stainless steel and copper, which can resist the erosion of various chemical substances and increase the service life of the coil-type condenser 10 for condensing organic waste gas. Here, the condenser 10 can also be a fin with fins as the mass transfer mode.

[0049] In a further embodiment, the refrigerant medium of the condenser 10 is water, an ice-water mixture, difluorochloromethane or tetrafluoroethane, or any one of water, ice-water mixture, difluorochloromethane or tetrafluoroethane. In this embodiment, the refrigerant medium is any one of the above and can have a good refrigeration effect, thereby improving the condensation efficiency of the condenser 10. Here, the refrigerant medium can be selected according to the structure of the condenser 10 and the required refrigeration effect, cost, and environmental protection to ensure its compatibility with the selected refrigerant medium and efficient operation. For example, for the condenser 10 using water or an ice-water mixture, anti-corrosion and anti-scaling measures need to be considered. For the condenser 10 using a refrigerant, it is necessary to pay attention to the control of parameters such as the refrigerant filling amount, pressure and temperature.

[0050] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0051] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A waste gas treatment device for collecting organic waste gas, characterized in that: include: Condenser, used to cool down the organic waste gas; A waste liquid collecting tank is located at the lower side of the condenser and is connected to the air inlet pipe; An air outlet pipe is located above the condenser and is arranged on a side of the condenser away from the waste liquid collection tank, and is connected to a main exhaust pipe; The connecting pipeline includes a first pipeline and a second pipeline, wherein the first pipeline is arranged to be inclined from the top of the waste liquid collection tank toward the bottom of the condenser, and the second pipeline is arranged to be inclined from the top of the condenser toward the bottom of the outlet pipe.

2. The exhaust gas treatment device according to claim 1, characterized in that The diameter of the waste liquid collection tank is smaller than that of the condenser, and the cross section of the first pipeline gradually increases from bottom to top.

3. The exhaust gas treatment device according to claim 2, characterized in that: The diameter of the gas outlet pipe is smaller than that of the condenser, and the cross section of the second pipeline gradually decreases from bottom to top.

4. The exhaust gas treatment device according to claim 3, characterized in that: The diameter of the waste liquid collection tank is larger than the diameter of the air outlet pipe.

5. The exhaust gas treatment device according to claim 4, characterized in that: The waste liquid collection tank also includes: A visual window is arranged on the side of the waste liquid collecting tank.

6. The exhaust gas treatment device according to claim 5, characterized in that: The waste liquid collection tank also includes: The drainage channel is located at the bottom of the waste liquid collecting tank, and the drainage channel also has a valve, and the valve is used to control the on-off of the drainage channel.

7. The exhaust gas treatment device according to any one of claims 1 to 6, characterized in that: The waste liquid collection tank is made of stainless steel.

8. The exhaust gas treatment device according to claim 7, characterized in that: Also includes: A gas detection alarm is arranged on the side wall of the gas outlet pipe, and the gas detection alarm is used to issue an alarm when the organic gas concentration in the gas outlet pipe exceeds a preset concentration.

9. The exhaust gas treatment device according to claim 8, characterized in that: The condenser is a coil condenser.

10. The exhaust gas treatment device according to claim 9, characterized in that: The refrigerant medium of the condenser is any one of water, ice-water mixture, difluorochloromethane or tetrafluoroethane.

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