A processing device and method

Abstract

The application discloses a processing device and method, and belongs to the technical field of waste gas treatment. The processing device is used for processing the exhaust of an engine. The processing device comprises a separation assembly, the separation assembly is provided with a gas-liquid separation cavity and an inlet communicated with the gas-liquid separation cavity, the inlet is used for connecting the exhaust port of the engine, so that the exhaust enters the gas-liquid separation cavity through the inlet to perform gas-liquid separation; and the processing assembly is provided with a containing cavity and a gas outlet communicated with the containing cavity. The separation assembly is arranged to firstly perform gas-liquid separation on the exhaust of the engine, then the separated gas is introduced into the treatment liquid in the processing assembly through the connecting pipe and the exhaust part, the harmful substances in the gas are absorbed and treated by the treatment liquid, the harmful substances in the gas can be effectively removed, then the treated gas is discharged through the gas outlet, the treatment of the harmful gas is completed, and the harmful gas discharged by the engine can not cause harm to the surrounding environment and personnel.

Description

Technical Field

[0001] This application belongs to the field of waste gas treatment technology, and specifically relates to a treatment device and method. Background Technology

[0002] When methanol or ammonia is used as engine fuel, during combustion, a small amount of unburned methanol, ammonia, and combustion products enter the crankcase through the piston-cylinder liner gap. Simultaneously, due to the rotational motion of the crankshaft connecting rod, the lubricating oil flowing from the friction pairs in the crankcase is colliding with moving parts, generating a large amount of oil droplets and oil vapor. Therefore, the gases emitted from the crankcase breather contain harmful gases such as methanol, formaldehyde, formic acid, or ammonia, as well as tiny oil droplets and oil vapor. Currently, it is inconvenient to treat the harmful gases emitted by the engine. Summary of the Invention

[0003] Purpose of the invention: The embodiments of this application provide a processing device aimed at overcoming the technical problem of the inconvenience of processing harmful gases emitted by engines.

[0004] Technical solution: The present application provides a processing device for treating engine exhaust, the processing device comprising:

[0005] A separation assembly having a gas-liquid separation chamber and an inlet communicating with the gas-liquid separation chamber, the inlet being used to communicate with the exhaust port of the engine so that the exhaust material enters the gas-liquid separation chamber through the inlet for gas-liquid separation;

[0006] The processing assembly has a receiving cavity and an outlet communicating with the receiving cavity, the outlet being used to discharge processed gas, and the receiving cavity containing a processing liquid;

[0007] An exhaust assembly includes a connecting pipe and an exhaust section connected together. The connecting pipe is connected to the separation assembly and communicates with the gas-liquid separation chamber. The exhaust section is located in the receiving chamber and is submerged in the processing liquid. The exhaust section is configured to discharge the gas in the gas-liquid separation chamber into the processing liquid through the connecting pipe for processing.

[0008] In some embodiments, the exhaust section has a plurality of spaced-apart exhaust holes located on the side of the exhaust section away from the connecting pipe, and the exhaust holes are used to discharge the gas in the gas-liquid separation chamber into the processing liquid;

[0009] The exhaust section is circular with a radius of H. The minimum distance from the exhaust hole to the outer periphery of the exhaust section is h, satisfying: h / H≥1 / 3.

[0010] In some embodiments, the processing component includes:

[0011] The body has the receiving cavity and a first drain port communicating with the receiving cavity, the first drain port being used to discharge the treatment liquid;

[0012] A first concentration sensor is connected to the body and located within the receiving cavity. The first concentration sensor is used to sense the concentration of the treatment liquid. The first concentration sensor is configured to open the valve of the first drain port when it senses that the treatment liquid has reached a preset concentration.

[0013] The circulation component includes a first pump body and a first and a second connecting pipe connected to the first pump body. Both the first and second connecting pipes are connected to the main body and are at least partially located within the receiving cavity. The first pump body is configured to transfer the treatment liquid at the bottom of the receiving cavity to the side of the exhaust section away from the connecting pipe via the first and second connecting pipes.

[0014] In some embodiments, the processing component includes:

[0015] A spray assembly, at least partially located within the receiving cavity and connected to the body, is used to spray the treatment liquid into the receiving cavity;

[0016] A first liquid level sensor is located inside the receiving cavity and connected to the body. Along the height direction X of the processed liquid, the distance from the first liquid level sensor to the bottom wall of the receiving cavity is greater than the distance from the exhaust section to the bottom wall of the receiving cavity.

[0017] The second liquid level sensor is located inside the receiving cavity and connected to the body. Along the height direction X of the processed liquid, the distance from the second liquid level sensor to the bottom wall of the receiving cavity is less than the distance from the first liquid level sensor to the bottom wall of the receiving cavity, and the distance from the second liquid level sensor to the bottom wall of the receiving cavity is not less than the distance from the exhaust section to the bottom wall of the receiving cavity.

[0018] In some embodiments, the processing component includes:

[0019] A third liquid level sensor is located inside the receiving cavity and connected to the body. Along the height direction X of the processed liquid, the distance from the third liquid level sensor to the bottom wall of the receiving cavity is less than the distance from the second liquid level sensor to the bottom wall of the receiving cavity.

[0020] In some embodiments, the spray assembly includes:

[0021] A spray section, at least partially located within the receiving cavity and connected to the body, wherein at least a portion of the spray section is located on the side of the exhaust section facing the connecting pipe, so as to spray the treatment liquid onto the exhaust section;

[0022] A liquid storage section and a second pump body section are connected to each other. The liquid storage section and the second pump body section are located outside the receiving cavity. The second pump body section is connected to the spray section and is configured to spray the treatment liquid in the liquid storage section through the spray section.

[0023] In some embodiments, the processing apparatus includes:

[0024] A separation box is connected to the main body and located outside the receiving cavity. The separation box has a storage cavity and a liquid inlet communicating with the storage cavity. The storage cavity is connected to the receiving cavity through the liquid inlet. Along the height direction X of the processed liquid, the distance from the liquid inlet to the bottom wall of the receiving cavity is the same as the distance from the first liquid level sensor to the bottom wall of the receiving cavity.

[0025] An oil scraping assembly includes a slidably connected drive unit and an oil scraping unit. At least a portion of the drive unit is located within the receiving cavity and connected to the body. The drive unit is used to drive the oil scraping unit to move toward the liquid inlet. The oil scraping unit is located within the receiving cavity and is configured to scrape lubricating oil suspended on the surface of the treatment fluid into the storage cavity through the liquid inlet.

[0026] In some embodiments, the separation chamber has a second drain port communicating with the storage cavity for discharging the processed liquid in the storage cavity. The second drain port is configured such that when the first concentration sensor senses that the processed liquid has reached a preset concentration, the valve of the second drain port opens. The separation chamber includes:

[0027] A fourth liquid level sensor is connected to the separation tank and located inside the storage cavity, for sensing the liquid level inside the storage cavity.

[0028] In some embodiments, the separation box has an oil outlet communicating with the storage cavity for discharging the lubricating oil in the storage cavity;

[0029] Along the height direction X of the processing liquid, the distance from the oil outlet to the bottom wall of the storage cavity is less than the distance from the liquid inlet to the bottom wall of the storage cavity, and the distance from the fourth liquid level sensor to the bottom wall of the storage cavity is less than the distance from the oil outlet to the bottom wall of the storage cavity.

[0030] In some embodiments, the oil scraping portion includes:

[0031] A rotatably connected connecting plate and scraper, the connecting plate being slidably connected to the drive unit, and at least a portion of the scraper being located within the treatment liquid;

[0032] A connecting line is connected to the connecting plate and the scraper respectively. The connecting line is located on the side of the connecting plate facing the liquid inlet, so that the included angle between the connecting plate and the scraper is an obtuse angle.

[0033] In some embodiments, the oil-scraping assembly includes:

[0034] A guide portion is located within the receiving cavity and connected to the body. The guide portion extends through the oil scraping portion to guide the oil scraping portion along the length direction Y of the guide portion.

[0035] In some embodiments, the processing apparatus includes:

[0036] A second concentration sensor is located inside the receiving cavity and connected to the processing assembly. The second concentration sensor is disposed on the top wall of the receiving cavity, and the gas outlet is also disposed on the top wall of the receiving cavity. The second concentration sensor is configured to sense the concentration of the processed gas.

[0037] Along the height direction X of the treatment liquid, the top wall of the receiving cavity is positioned opposite to the bottom wall of the receiving cavity.

[0038] A treatment method for treating engine exhaust, the treatment method comprising:

[0039] The exhaust from the engine is passed into the separation assembly for gas-liquid separation;

[0040] The gas after gas-liquid separation is discharged into the receiving cavity of the processing component through the exhaust section of the exhaust component, so that the processing liquid in the receiving cavity processes the gas.

[0041] In some embodiments, the processing method further includes:

[0042] The concentration of the treatment liquid is sensed by a first concentration sensor. When the concentration of the treatment liquid in the containment cavity reaches a preset concentration, the valve of the first drain port is opened to drain the treatment liquid from the containment cavity, and the spray assembly sprays the treatment liquid into the containment cavity; the rate of draining the treatment liquid is greater than the rate of spraying the treatment liquid.

[0043] The liquid level in the receiving cavity is sensed by a third liquid level sensor during drainage. When the liquid level in the receiving cavity drops to the position of the third liquid level sensor, the valve of the first drainage port is closed.

[0044] A first liquid level sensor is used to sense the liquid level in the receiving cavity. When the liquid level in the receiving cavity rises to the position of the first liquid level sensor, the spraying assembly stops spraying the treatment liquid.

[0045] A second liquid level sensor is used to sense the liquid level in the containment cavity. When the liquid level in the containment cavity drops to the position of the second liquid level sensor, the spraying assembly starts spraying until the liquid level in the containment cavity rises to the position of the first liquid level sensor.

[0046] In some embodiments, the processing method further includes:

[0047] The treatment fluid and lubricating oil are scraped into the storage cavity by the scraping component. When the first concentration sensor detects that the concentration of the treatment fluid in the storage cavity reaches the preset concentration, the valve of the second drain port is opened to discharge the treatment fluid from the storage cavity.

[0048] A fourth liquid level sensor is used to sense the liquid level in the storage chamber. When the liquid level in the storage chamber drops to the position of the fourth liquid level sensor, the valve of the second drain port is closed.

[0049] When the liquid level in the storage chamber rises to the position of the oil outlet, the lubricating oil in the storage chamber is discharged through the oil outlet.

[0050] Beneficial Effects: The processing apparatus of this application embodiment is used to process engine exhaust. The processing apparatus includes: a separation component having a gas-liquid separation chamber and an inlet communicating with the gas-liquid separation chamber, the inlet being used to communicate with the engine exhaust outlet so that the exhaust enters the gas-liquid separation chamber through the inlet for gas-liquid separation; a processing component having a receiving chamber and an exhaust port communicating with the receiving chamber, the exhaust port being used to discharge the processed gas, and the receiving chamber containing a processing liquid; and an exhaust component including a connecting pipe and an exhaust section connected to each other, the connecting pipe being connected to the separation component and communicating with the gas-liquid separation chamber, the exhaust section being located in the receiving chamber and submerged in the processing liquid, and the exhaust section being configured to discharge the gas in the gas-liquid separation chamber into the processing liquid through the connecting pipe for processing. The separation component first separates the engine exhaust into gas and liquid. The separated gas is then introduced into the treatment fluid in the treatment component through the connecting pipe and exhaust section. The treatment fluid absorbs and treats the harmful substances in the gas, effectively removing them. The treated gas is then discharged through the exhaust port, thus completing the treatment of harmful gases and preventing the harmful gases emitted by the engine from causing harm to the surrounding environment and people. Attached Figure Description

[0051] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0052] Figure 1 This is a schematic diagram of the separation component, exhaust component, and processing component during operation according to an embodiment of this application;

[0053] Figure 2 This is a schematic diagram of the exhaust assembly and treatment assembly according to an embodiment of this application;

[0054] Figure 3 This is a schematic diagram of the structure of a processing assembly with a circulation component according to an embodiment of this application;

[0055] Figure 4 This is a schematic diagram of the structure of a processing component with multiple liquid level sensors according to an embodiment of this application;

[0056] Figure 5 This is a schematic diagram of the structure of a treatment assembly with a spraying component according to an embodiment of this application;

[0057] Figure 6 This is a schematic diagram of the structure of the oil skimming assembly, the separator, and the processing assembly in an embodiment of this application;

[0058] Figure 7 This is a schematic diagram of the oil scraping assembly according to an embodiment of this application;

[0059] Figure 8 This is a schematic diagram of the structure of the oil scraping part in an embodiment of this application;

[0060] Figure 9 This is a schematic diagram of the overall structure of the processing device according to an embodiment of this application;

[0061] Reference numerals: 10-Engine; 20-Separation assembly; 21-Gas-liquid separation chamber; 22-Inlet; 30-Processing assembly; 31-Receiving chamber; 32-Outlet; 33-Processing liquid; 34-Body; 341-First drain port; 35-First concentration sensor; 36-Circulation component; 361-First pump body; 362-First guide pipe; 363-Second guide pipe; 37-First liquid level sensor; 38-Second liquid level sensor; 39-Third liquid level sensor; 40-Exhaust assembly; 41-Connecting... Connector; 42-Exhaust section; 421-Exhaust port; 50-Spray assembly; 51-Spray section; 52-Liquid storage section; 53-Second pump body section; 60-Separation box; 61-Storage chamber; 62-Liquid inlet; 63-Second drain outlet; 64-Fourth liquid level sensor; 65-Oil outlet; 70-Oil scraper assembly; 71-Drive unit; 72-Oil scraper; 721-Connecting plate; 722-Scraper; 723-Connecting line; 73-Guide section; 80-Second concentration sensor; X-Height direction; Y-Length direction. Detailed Implementation

[0062] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0063] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, and "at least one" can mean one, two, or more, unless otherwise explicitly specified.

[0064] With the gradual implementation of global carbon emission regulations, methanol and ammonia are currently being used as new fuels in internal combustion engines. However, methanol and ammonia are toxic and require certain precautions to ensure personal safety during use. During combustion in the engine, a small amount of unburned methanol, ammonia, and combustion products may enter the crankcase through the piston-cylinder liner gap and be expelled through the crankcase breather. The gases expelled from the crankcase breather of conventional diesel and natural gas internal combustion engines are generally discharged directly into the atmosphere through a vent pipe and do not contain toxic or harmful gases, requiring no treatment. However, methanol and ammonia-fueled internal combustion engines may contain some methanol, formaldehyde, formic acid, or ammonia, which can cause harm to humans if directly emitted. Therefore, certain treatment measures are necessary to absorb and treat these harmful gases before releasing them into the atmosphere. Meanwhile, due to the rotational motion of the crankshaft connecting rod, the lubricating oil flowing down from the friction pairs in the crankcase generates a large amount of lubricating oil droplets and oil vapor after being impacted by moving parts. Simultaneously, some of the heat generated by combustion in the cylinder is absorbed by the lubricating oil, raising its temperature and creating conditions for the formation of lubricating oil vapor. Therefore, the crankcase breather outlet will have a significant amount of lubricating oil droplets and oil vapor. While diesel engine breathers typically isolate lubricating oil droplets and oil vapor, they cannot completely isolate them. Some tiny droplets and oil vapor will still escape the breather and be discharged outside the engine. Therefore, the gas discharged from the crankcase breather contains not only harmful gases such as methanol, formaldehyde, formic acid, or ammonia, but also tiny lubricating oil droplets and oil vapor. Thus, it is necessary to collect and treat the tiny droplets and oil vapor, as well as absorb and treat the harmful gases.

[0065] In view of the above, embodiments of this application provide a processing apparatus to overcome at least one of the above-mentioned technical problems.

[0066] Please see Figure 1 and Figure 9 In this embodiment, the processing device is used to treat the exhaust gas discharged from the breather of the engine 10, and can remove methanol, ammonia and lubricating oil from the exhaust gas. The processing device includes: a separation component 20, a processing component 30 and an exhaust component 40.

[0067] The separation assembly 20 has a gas-liquid separation chamber 21 and an inlet 22 communicating with the gas-liquid separation chamber 21. The inlet 22 is used to connect to the exhaust port of the engine 10, allowing the exhaust of the engine 10 to enter the gas-liquid separation chamber 21 through the inlet 22 for gas-liquid separation. The gas-liquid separation chamber 21 is funnel-shaped and has a labyrinthine channel inside, which communicates with the inlet 22. The exhaust flows through the inlet 22 within this labyrinthine channel and collides with the channel walls. During the collision process, some lubricating oil droplets and condensed oil vapor in the exhaust flow to the bottom of the gas-liquid separation chamber 21 under the action of gravity. Since the bottom of the gas-liquid separation chamber 21 is connected to the waste liquid collection tank, some lubricating oil droplets and condensed oil vapor can flow into the waste liquid collection tank. The gas in the exhaust flows to the top of the gas-liquid separation chamber 21. The separation assembly 20 can be an oil-gas separator, a condenser, a bubble tower, or other structures.

[0068] The treatment assembly 30 has a receiving cavity 31 and an outlet 32 ​​communicating with the receiving cavity 31. The outlet 32 ​​is used to discharge the treated gas. The receiving cavity 31 contains a treatment liquid 33. The exhaust assembly 40 includes a connecting pipe 41 and an exhaust section 42 connected to each other. The connecting pipe 41 is connected to the separation assembly 20 and communicates with the gas-liquid separation cavity 21. The exhaust section 42 is located in the receiving cavity 31 and is submerged in the treatment liquid 33. Since the pressure in the crankcase of the engine 10 needs to be controlled within a low range, the liquid level distance between the exhaust section 42 and the treatment liquid 33 needs to be controlled within a certain range. The liquid level distance between the exhaust section 42 and the treatment liquid 33 can be controlled within 50mm, which does not affect the treatment liquid 33's treatment of exhaust gas, while also meeting the pressure requirements in the crankcase of the engine 10. The exhaust section 42 is configured to discharge the gas in the gas-liquid separation cavity 21 into the treatment liquid 33 for treatment through the connecting pipe 41. In other words, the waste gas formed after gas-liquid separation enters the exhaust section 42 through the connecting pipe 41 connected to the separation component 20. The exhaust section 42 guides the waste gas into the receiving chamber 31. Since the receiving chamber 31 contains a treatment liquid 33, and the treatment liquid 33 submerges the exhaust section 42, the waste gas discharged through the exhaust section 42 will enter the treatment liquid 33. The treatment liquid 33 can absorb harmful gases such as methanol and ammonia in the waste gas, while harmless gases will float out of the treatment liquid 33 and be discharged through the outlet 32 ​​of the treatment component 30, thus completing the treatment of the waste gas. This process can recover the lubricating oil in the exhaust, facilitating recycling, saving resources, and reducing costs. At the same time, it can also absorb and treat harmful gases in the exhaust, making the gas discharged into the air green, safe, and pollution-free, avoiding harm to the surrounding environment and personnel.

[0069] Please see Figure 1 and Figure 2In conjunction with the above embodiments, in some embodiments, the exhaust section 42 has multiple spaced exhaust holes 421. The exhaust holes 421 are located on the side of the exhaust section 42 away from the connecting pipe 41, and are used to discharge the gas in the gas-liquid separation chamber 21 into the treatment liquid 33. That is, multiple exhaust holes 421 are provided at the bottom of the exhaust section 42, and the waste gas to be treated can be discharged into the treatment liquid 33 through the multiple exhaust holes 421. In order to enhance the absorption effect of methanol or ammonia, the exhaust section 42 not only needs to be completely immersed in water, but also the multiple exhaust holes 421 on it should be distributed as far as possible at the center of the bottom of the exhaust section 42, so that the waste gas discharged through the exhaust holes 421 can stay in the treatment liquid 33 for a longer time, ensuring that the treatment liquid 33 can fully absorb and treat the methanol and ammonia in the waste gas.

[0070] Preferably, the exhaust section 42 is circular, and the multiple exhaust holes 421 at its bottom are also distributed in a circular diffusion pattern. The radius of the exhaust section 42 is H, and the minimum distance from the exhaust holes 421 to the outer periphery of the exhaust section 42 is h, satisfying: h / H ≥ 1 / 3. This arrangement is to extend the flow path of the exhaust gas in the water, allowing for sufficient contact between the exhaust gas and the treatment liquid 33, thereby facilitating the absorption of methanol and ammonia from the exhaust gas by the treatment liquid 33.

[0071] Please see Figure 1 and Figure 3 In conjunction with the above embodiments, in some embodiments, the processing component 30 includes: a body 34, a first concentration sensing element 35, and a circulation element 36.

[0072] The main body 34 has a receiving cavity 31 and a first drain port 341 communicating with the receiving cavity 31. The first drain port 341 is used to discharge the treatment liquid 33. When the treatment liquid 33 absorbs a large amount of methanol and ammonia, its treatment effect on the waste gas will decrease, so the treatment liquid 33 needs to be discharged through the first drain port 341. The first drain port 341 can be connected to a treatment liquid collection tank, and the treatment liquid 33 can be discharged into the treatment liquid collection tank. The opening and closing of the first drain port 341 can be controlled by an electric control valve.

[0073] The first concentration sensor 35 is connected to the main body 34 and located within the receiving cavity 31. The first concentration sensor 35 can be a methanol or ammonia concentration detector, used to sense and monitor the concentration of methanol or ammonia in the treated liquid 33. The first concentration sensor 35 is configured to open the valve of the first drain port 341 when it senses that the treated liquid 33 has reached a preset concentration. By placing the first concentration sensor 35 in an appropriate position, when it detects that the concentration of the treated liquid 33 has reached saturation, it can send a command to the monitoring and alarm system on the device. The monitoring and alarm system can then control the electrically controlled valve at the location of the first drain port 341 to open, allowing the saturated treated liquid 33 in the receiving cavity 31 to be discharged.

[0074] The circulation component 36 includes a first pump body 361 and a first guide pipe 362 and a second guide pipe 363 connected to the first pump body 361. Both the first guide pipe 362 and the second guide pipe 363 are connected to the main body 34 and are at least partially located within the receiving cavity 31. The first pump body 361 may be an electrically controlled water pump. The first pump body 361 is configured to transfer the treatment liquid 33 at the bottom of the receiving cavity 31 to the side of the exhaust section 42 away from the connecting pipe 41 via the first guide pipe 362 and the second guide pipe 363. Since the exhaust section 42 is located at the upper part of the treatment liquid 33, the exhaust gas discharged from the exhaust section 42 will first be absorbed by the treatment liquid 33 at the upper part (that is, the part of the treatment liquid 33 on the side of the exhaust section 42 away from the connecting pipe 41). Therefore, the concentration of the treatment liquid 33 at the upper part will be greater than the concentration of the treatment liquid 33 at the lower part (that is, the treatment liquid 33 at the bottom of the receiving cavity 31). The first concentration sensor 35 can be positioned inside the treatment liquid 33 near the exhaust section 42 (the position of the first concentration sensor 35 can be adjusted as needed) to detect the concentration of the treatment liquid 33 located in the upper part. When the detected concentration reaches a certain value, the circulation unit 36 ​​can be activated to circulate the treatment liquid 33, without needing to start circulation at the beginning, thus saving energy. The first pump body 361 can be located outside the receiving cavity 31, and is connected to a first guide pipe 362 and a second guide pipe 363, both of which are at least partially located inside the receiving cavity 31 for communication with the receiving cavity 31. Simultaneously, the first guide pipe 362 is in contact with the upper part of the treatment liquid 33, and the second guide pipe 363 is in contact with the lower part of the treatment liquid 33. Under the action of the first pump body 361, the lower part of the treatment liquid 33 can be drawn into the second guide pipe 363 and then discharged to the upper part through the first guide pipe 362. In this way, the upper part of the treatment liquid 33 can be transferred to the lower part of the receiving cavity 31, so that the upper part of the treatment liquid 33 and the lower part of the treatment liquid 33 form a circulation through the circulation component 36, which promotes the transfer of the treatment liquid 33 with lower concentration located in the lower part of the receiving cavity 31 to the upper part, so as to better absorb and treat methanol and ammonia in the waste gas.

[0075] Please see Figure 1 , Figure 4 and Figure 5 In conjunction with the above embodiments, in some embodiments, the processing component 30 includes a spraying component 50, a first liquid level sensor 37, and a second liquid level sensor 38. Both the first liquid level sensor 37 and the second liquid level sensor 38 can be liquid level sensors.

[0076] The spray assembly 50 is at least partially located within the receiving cavity 31 and connected to the body 34. The body 34 supports a portion of the spray assembly 50. The portion of the spray assembly 50 located within the receiving cavity 31 can spray treatment liquid 33 into the receiving cavity 31 to replenish the treatment liquid 33 in the receiving cavity 31, and can also further treat the exhaust gas.

[0077] The first liquid level sensor 37 is located inside the receiving cavity 31 and connected to the main body 34. Along the height direction X of the processed liquid 33, the distance from the first liquid level sensor 37 to the bottom wall of the receiving cavity 31 is greater than the distance from the exhaust section 42 to the bottom wall of the receiving cavity 31. The position of the first liquid level sensor 37 represents the liquid level of the processed liquid 33 inside the processing device when it first starts operating. This liquid level is greater than the height of the exhaust section 42, allowing the processed liquid 33 to submerge the exhaust section 42. The first liquid level sensor 37 can sense the liquid level of the processed liquid 33 at the same height (i.e., the same distance to the bottom wall of the receiving cavity 31). When the liquid level of the processed liquid 33 reaches this height, the first liquid level sensor 37 sends a corresponding signal to the monitoring and alarm system, thereby causing the device to execute the next operation.

[0078] The second liquid level sensor 38 is located inside the receiving cavity 31 and connected to the main body 34. Along the height direction X of the treated liquid 33, the distance from the second liquid level sensor 38 to the bottom wall of the receiving cavity 31 is less than the distance from the first liquid level sensor 37 to the bottom wall of the receiving cavity 31, and the distance from the second liquid level sensor 38 to the bottom wall of the receiving cavity 31 is not less than the distance from the exhaust section 42 to the bottom wall of the receiving cavity 31. During the waste gas treatment process, due to other operations, the treated liquid 33 in the receiving cavity 31 may gradually decrease, and the liquid level of the treated liquid 33 may also gradually decrease. When the level of the treatment liquid 33 drops from the position of the first level sensor 37 to the position of the second level sensor 38 (at this point, the level of the treatment liquid 33 is almost close to, or even the same as, the height of the exhaust section 42, which is not conducive to the treatment of exhaust gas), the second level sensor 38 can sense the liquid level and send a corresponding signal to the monitoring and alarm system. The monitoring and alarm system controls the spray assembly 50 to open, spraying the treatment liquid 33 into the receiving cavity 31 to replenish the treatment liquid 33, causing the level of the treatment liquid 33 to rise. Until the level of the treatment liquid 33 rises to the position of the first level sensor 37, the first level sensor 37 senses the level of the treatment liquid 33 and sends a corresponding signal to the monitoring and alarm system, causing the monitoring and alarm system to control the spray assembly 50 to close, stopping the spraying of the treatment liquid. This structure ensures that the level of the treatment liquid 33 is at a suitable height, guaranteeing that the treatment liquid 33 can fully absorb and treat the exhaust gas.

[0079] Please see Figure 1 , Figure 4 and Figure 5 In conjunction with the above embodiments, in some embodiments, the processing component 30 includes a third liquid level sensor 39. The third liquid level sensor 39 is located within the receiving cavity 31 and connected to the body 34. Along the height direction X of the processed liquid 33, the distance from the third liquid level sensor 39 to the bottom wall of the receiving cavity 31 is less than the distance from the second liquid level sensor 38 to the bottom wall of the receiving cavity 31. When the first concentration sensor 35 detects that the concentration of the processed liquid 33 has reached saturation, the monitoring and alarm system can control the electrically controlled valve at the first drain port 341 to open, allowing the saturated processed liquid 33 in the receiving cavity 31 to be discharged. The liquid level of the processed liquid 33 decreases until it reaches the position of the third liquid level sensor 39. At this time, the third liquid level sensor 39 can sense the liquid level of the processed liquid 33 and send a corresponding signal to the monitoring and alarm system, causing it to control the electrically controlled valve at the first drain port 341 to close. When the level of the treatment fluid 33 drops to the second level sensor 38, the spray assembly 50 will spray the treatment fluid 33 into the receiving cavity 31. However, the discharge volume of the first drain port 341 is greater than the spray volume of the spray assembly 50, so the level of the treatment fluid 33 will continue to drop until it reaches the position of the third level sensor 39, causing the monitoring and alarm system to close the electronically controlled valve at the position of the first drain port 341. The spray assembly 50 continues to spray the treatment fluid 33 into the receiving cavity 31, causing the level of the treatment fluid 33 to rise until it reaches the position of the first level sensor 37. The first level sensor 37 senses the level and sends a corresponding signal to the monitoring and alarm system, causing the monitoring and alarm system to control the spray assembly 50 to close and stop spraying the treatment fluid. The spray assembly 50 can not only replenish the treatment fluid 33 in the receiving cavity 31, but also treat the exhaust gas during the replacement of the treatment fluid 33, preventing the escape of harmful gases during the fluid replacement process.

[0080] Please see Figure 1 and Figure 5 In conjunction with the above embodiments, in some embodiments, the spray assembly 50 includes: a spray section 51, a liquid storage section 52 connected thereto, and a second pump body section 53.

[0081] The spray section 51 is at least partially located within the receiving cavity 31 and connected to the body 34, so that the body 34 provides some support for the spray section 51. Multiple nozzles can be spaced apart on the spray section 51 to spray the treatment liquid 33 relatively evenly into the receiving cavity 31. At least a portion of the spray section 51 is located on the side of the exhaust section 42 facing the connecting pipe 41, so as to spray the treatment liquid 33 onto the exhaust section 42. With this positioning, after the exhaust gas has been treated with the treatment liquid 33 and floats to the upper part of the receiving cavity 31, the spray section 51 can spray the treatment liquid 33 onto the exhaust gas again, further treating the exhaust gas by the sprayed treatment liquid 33, thus ensuring that the gas discharged to the outside is safe and harmless.

[0082] The liquid storage section 52 and the second pump body section 53 are connected and located outside the receiving cavity 31. The liquid storage section 52 stores the processing liquid 33, and the second pump body section 53 can draw out the processing liquid 33 from the liquid storage section 52. The second pump body section 53 is connected to the spray section 51. After the second pump body section 53 draws out the processing liquid 33 from the liquid storage section 52, it can be sprayed into the receiving cavity 31 through the spray section 51.

[0083] Please see Figure 1 , Figure 4 and Figure 6 In conjunction with the above embodiments, in some embodiments, the processing device includes a separation tank 60 and an oil skimming assembly 70.

[0084] The separator 60 is connected to the main body 34 and located outside the receiving cavity 31. The separator 60 has a storage cavity 61 and an inlet 62 communicating with the storage cavity 61. The storage cavity 61 is connected to the receiving cavity 31 through the inlet 62. Along the height direction X of the processed liquid 33, the distance from the inlet 62 to the bottom wall of the receiving cavity 31 is the same as the distance from the first liquid level sensor 37 to the bottom wall of the receiving cavity 31. Although the effluent undergoes gas-liquid separation through the separator 20, removing some of the lubricating oil, some lubricating oil droplets and oil vapor still enter the receiving cavity 31 with the exhaust gas. After the exhaust gas enters the processed liquid 33, the lubricating oil droplets and oil vapor will separate out, and the lubricating oil will gradually float on the surface of the processed liquid 33. Over time, a large amount of lubricating oil will accumulate. The separator 60 can be used to process these lubricating oils. Since the height of the liquid level of the treatment fluid 33 is the same as the height of the first liquid level sensor 37, and the height of the first liquid level sensor 37 is the same as the height of the inlet 62, it is convenient to scrape the lubricating oil floating on the surface of the treatment fluid 33 into the separator 60 for processing through the inlet 62.

[0085] The oil scraping assembly 70 includes a drive unit 71 and an oil scraping unit 72 slidably connected. At least a portion of the drive unit 71 is located within the receiving cavity 31 and connected to the body 34. The drive unit 71 drives the oil scraping unit 72 to move toward the inlet 62. The oil scraping unit 72, located within the receiving cavity 31, is configured to scrape lubricating oil suspended on the surface of the treatment fluid 33 into the storage cavity 61 through the inlet 62. In other words, the oil scraping assembly 70 can scrape lubricating oil floating on the surface of the treatment fluid 33 into the separation tank 60. The oil scraping assembly 70 includes a drive unit 71 and an oil scraping unit 72. The drive unit 71 drives the oil scraping unit 72 to move toward the inlet 62. While moving, the oil scraping unit 72 pushes the lubricating oil floating on the surface of the treatment fluid 33 until it pushes the lubricating oil into the storage cavity 61 through the inlet 62. Then the drive unit 71 drives the oil scraper 72 to move in the opposite direction, so that the oil scraper 72 returns to its original position, and the above operation is repeated until the lubricating oil floating on the surface of the treatment fluid 33 is completely scraped into the storage chamber 61.

[0086] Please see Figure 1 , Figure 4 and Figure 6 In conjunction with the above embodiments, in some embodiments, the separation tank 60 has a second drain port 63 communicating with the storage chamber 61 for discharging the processed liquid 33 in the storage chamber 61. The second drain port 63 is configured such that when the first concentration sensor 35 senses that the processed liquid 33 has reached a preset concentration, the valve of the second drain port 63 opens. Since the oil scraper 72 also scrapes a portion of the processed liquid 33 into the storage chamber 61 during the process of scraping lubricating oil into the storage chamber 61, a second drain port 63 is also required on the separation tank 60 for discharging the processed liquid 33 from the storage chamber 61. When the first concentration sensor 35 located in the receiving chamber 31 senses that the concentration of the processed liquid 33 has reached saturation, it will not only control the opening of the electrically controlled valve at the location of the first drain port 341 through the monitoring and alarm system, but also control the opening of the electrically controlled valve at the location of the second drain port 63 to facilitate the discharge of the processed liquid 33 from the storage chamber 61. The second drain port 63 can also be connected to the treatment liquid collection tank to drain the treatment liquid 33 in the storage chamber 61 into the treatment liquid collection tank.

[0087] The separator 60 includes a fourth level sensor 64. The fourth level sensor 64 is connected to the separator 60 and located within the storage chamber 61, used to sense the liquid level within the storage chamber 61. The height of the fourth level sensor 64 is less than the height of the inlet 62. When the processed liquid 33 is discharged from the storage chamber 61 through the second drain port 63, the liquid level of the processed liquid 33 in the storage chamber 61 drops until it reaches the position of the fourth level sensor 64. The fourth level sensor 64 senses the liquid level and sends a signal to the monitoring and alarm system, causing the monitoring and alarm system to control the electrically controlled valve at the position of the second drain port 63 to close, preventing the lubricating oil in the storage chamber 61 from draining into the processed liquid collection tank.

[0088] Please see Figure 1 , Figure 4 and Figure 6 In conjunction with the above embodiments, in some embodiments, the separating tank 60 has an oil outlet 65 communicating with the storage chamber 61 for discharging the lubricating oil in the storage chamber 61. As the oil scraper 72 continuously scrapes lubricating oil and processing fluid 33 into the storage chamber 61, the liquid level in the storage chamber 61 continuously rises. When the liquid level reaches the position of the oil outlet 65, the lubricating oil floating on the processing fluid 33 is discharged through the oil outlet 65. The oil outlet 65 is connected to a waste liquid collection tank, and the discharged lubricating oil enters the waste liquid collection tank.

[0089] Along the height direction X of the treated liquid 33, the distance from the oil outlet 65 to the bottom wall of the storage chamber 61 is less than the distance from the inlet 62 to the bottom wall of the storage chamber 61, and the distance from the fourth liquid level sensor 64 to the bottom wall of the storage chamber 61 is less than the distance from the oil outlet 65 to the bottom wall of the storage chamber 61. By setting the heights of the inlet 62, the oil outlet 65, and the fourth liquid level sensor 64, the height of the fourth liquid level sensor 64 is minimized. This allows for monitoring of the liquid level when the liquid inside the storage chamber 61 is discharged, preventing the liquid from being completely discharged. In effect, it prevents the lubricating oil from being discharged. Therefore, a minimum liquid level position is set for the fourth liquid level sensor 64. The same principle applies to the setting of the third liquid level sensor 39 in the above embodiment. The height of the oil outlet 65 is greater than the height of the fourth liquid level sensor 64 and less than the height of the liquid inlet 62. This allows the lubricating oil floating on the liquid surface to be discharged through the oil outlet 65 when the liquid level in the storage cavity 61 increases, instead of re-entering the receiving cavity 31 as the liquid level rises.

[0090] Please see Figure 1 , Figure 6 , Figure 7 and Figure 8In conjunction with the above embodiments, in some embodiments, the oil scraping part 72 includes a connecting plate 721 and a scraper 722 that are rotatably connected, as well as a connecting line 723. The connecting plate 721 and the scraper 722 can be rotatably connected via a hinge, a pivot, or other structure.

[0091] The connecting plate 721 is slidably connected to the drive unit 71. The drive unit 71 may include a drive motor and a screw. The drive motor drives the screw to rotate, and the screw is connected to the connecting plate 721 by a thread. When the screw rotates, it can drive the connecting plate 721 to move towards the liquid inlet 62. The drive motor can drive the screw to rotate in both directions, so that the screw can drive the connecting plate 721 to move back and forth, thereby driving the scraper 722 to move back and forth as well, continuously scraping the lubricating oil into the storage chamber 61. At least a part of the scraper 722 is located in the treatment fluid 33, which is beneficial for scraping the lubricating oil floating on the treatment fluid 33 and can improve the scraping effect. When the scraper 722 returns to its original position, the scraper 722 will rotate to a certain extent under the action of liquid resistance, so that the bottom end of the scraper 722 is flush with the liquid surface, so that the scraper 722 will not scrape the lubricating oil when returning, and prevent the lubricating oil from accumulating in a position away from the liquid inlet 62.

[0092] Connecting line 723 is connected to connecting plate 721 and scraper 722 respectively. Connecting line 723 is located on the side of connecting plate 721 facing inlet 62, so that the included angle between connecting plate 721 and scraper 722 is obtuse. Since connecting plate 721 and scraper 722 are rotatably connected, the angle between them can be adjusted. When moving towards inlet 62 to scrape off lubricating oil, the limiting effect of connecting line 723, as well as the effects of gravity and liquid resistance, can limit the included angle between connecting plate 721 and scraper 722 to an obtuse angle. Connecting line 723 can be a flexible structure or other structures that meet the requirements; no limitation is made here. Because connecting line 723 is located on the side of connecting plate 721 facing inlet 62, the obtuse angle opens towards inlet 62. The connecting plate 721 is set along the height direction X, while the scraper 722 is tilted relative to the height direction. During the process of scraping off the lubricating oil, the scraper 722 presents a certain tilt angle. When moving, the lubricating oil is more likely to gather on the side of the scraper 722 facing the liquid inlet 62, which can scrape off more lubricating oil and improve the scraping efficiency.

[0093] Please see Figure 6 , Figure 7 and Figure 8In conjunction with the above embodiments, in some embodiments, the oil scraping assembly 70 includes a guide portion 73. The guide portion 73 is located within the receiving cavity 31 and connected to the body 34. The guide portion 73 penetrates the oil scraping portion 72 to guide the oil scraping portion 72 along its length direction Y. Since the connecting plate 721 is connected to the screw to drive the connecting plate 721, the moving direction of the connecting plate 721 may deviate during the driving process. The guide portion 73 serves to guide the connecting plate 721 and prevent deviation in its moving direction. Of course, the guide portion 73 can also be configured in other forms, such as a slider or a slide rail.

[0094] Please see Figure 1 In conjunction with the above embodiments, in some embodiments, the processing device includes a second concentration sensing element 80.

[0095] The second concentration sensor 80 is located inside the receiving cavity 31 and connected to the processing assembly 30. The second concentration sensor 80 is disposed on the top wall of the receiving cavity 31, and the gas outlet 32 ​​is also disposed on the top wall of the receiving cavity 31. The second concentration sensor 80 is configured to sense the concentration of the treated gas. Along the height direction X of the treated liquid 33, the top wall and bottom wall of the receiving cavity 31 are positioned opposite each other. By disposing of the second concentration sensor 80 on the top wall of the receiving cavity 31, the concentration of the gas discharged through the gas outlet 32 ​​can be monitored. When the gas concentration is detected to exceed a preset value, the second concentration sensor 80 sends a signal to the monitoring and alarm system, causing the monitoring and alarm system to control the spray assembly 50 to open. The spray assembly 50 then sprays the exhaust gas in the air to absorb harmful gases in the exhaust gas, ensuring that the discharged gas meets safety requirements.

[0096] A treatment method for treating the exhaust of engine 10, the treatment method comprising:

[0097] The exhaust from engine 10 is fed into separation assembly 20 for gas-liquid separation.

[0098] The gas after gas-liquid separation is discharged into the receiving cavity 31 of the processing component 30 through the exhaust section 42 of the exhaust assembly 40, so that the processing liquid 33 in the receiving cavity 31 processes the gas.

[0099] In some embodiments, the processing method further includes:

[0100] The concentration of the treatment liquid 33 is sensed by the first concentration sensing element 35. When the concentration of the treatment liquid 33 in the receiving cavity 31 reaches the preset concentration, the valve of the first drain port 341 is opened to drain the treatment liquid 33 in the receiving cavity 31, and the spraying assembly 50 sprays the treatment liquid 33 into the receiving cavity 31; the rate of draining the treatment liquid 33 is greater than the rate of spraying the treatment liquid 33.

[0101] The third liquid level sensor 39 is used to sense the liquid level in the receiving cavity 31 during drainage. When the liquid level in the receiving cavity 31 drops to the position of the third liquid level sensor 39, the valve of the first drainage port 341 is closed.

[0102] The first liquid level sensor 37 is used to sense the liquid level in the receiving cavity 31. When the liquid level in the receiving cavity 31 rises to the position of the first liquid level sensor 37, the spray assembly 50 stops spraying the treatment liquid 33.

[0103] The second liquid level sensor 38 is used to sense the liquid level in the container cavity 31. When the liquid level in the container cavity 31 drops to the position of the second liquid level sensor 38, the spray assembly 50 starts spraying until the liquid level in the container cavity 31 rises to the position of the first liquid level sensor 37.

[0104] In some embodiments, the processing method further includes:

[0105] The processing fluid 33 and lubricating oil are scraped into the storage chamber 61 by the scraping assembly 70. When the first concentration sensor 35 senses that the concentration of the processing fluid 33 in the storage chamber 31 has reached the preset concentration, the valve of the second drain port 63 is opened to discharge the processing fluid 33 from the storage chamber 61.

[0106] The fourth liquid level sensor 64 is used to sense the liquid level in the storage chamber 61. When the liquid level in the storage chamber 61 drops to the position of the fourth liquid level sensor 64, the valve of the second drain port 63 is closed.

[0107] When the liquid level in the storage chamber 61 rises to the position of the oil outlet 65, the lubricating oil in the storage chamber 61 is discharged through the oil outlet 65.

[0108] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0109] The processing apparatus and method provided in the embodiments of this application have been described in detail above, and specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A processing apparatus, characterized in that, The treatment device is used to treat the exhaust of the engine (10), and includes: A separation assembly (20) having a gas-liquid separation chamber (21) and an inlet (22) communicating with the gas-liquid separation chamber (21), the inlet (22) being used to communicate with the exhaust port of the engine (10) so that the exhaust material enters the gas-liquid separation chamber (21) through the inlet (22) for gas-liquid separation; A processing assembly (30) has a receiving cavity (31) and an outlet (32) communicating with the receiving cavity (31), the outlet (32) being used to discharge the processed gas, and a processing liquid (33) being disposed in the receiving cavity (31); the processing assembly (30) includes: a body (34), the body (34) having the receiving cavity (31) and a first drain port (341) communicating with the receiving cavity (31), the first drain port (341) being used to discharge the processing liquid (33); a first concentration sensor (35), connected to the body (34) and located in the receiving cavity (31), the first concentration sensor (35) being used to sense the concentration of the processing liquid (33); An exhaust assembly (40) includes a connecting pipe (41) and an exhaust section (42) connected together. The connecting pipe (41) is connected to the separation assembly (20) and communicates with the gas-liquid separation chamber (21). The exhaust section (42) is located in the receiving chamber (31) and is submerged in the processing liquid (33). The exhaust section (42) is configured to discharge the gas in the gas-liquid separation chamber (21) into the processing liquid (33) through the connecting pipe (41) for processing. The processing device further includes: A separation tank (60) is connected to the main body (34) and located outside the receiving cavity (31). The separation tank (60) has a storage cavity (61) and a liquid inlet (62) communicating with the storage cavity (61). The storage cavity (61) is connected to the receiving cavity (31) through the liquid inlet (62). The separation tank (60) has a second drain port (63) communicating with the storage cavity (61) for discharging the processing liquid (33) in the storage cavity (61). The second drain port (63) is configured such that when the first concentration sensor (35) senses that the processing liquid (33) has reached a preset concentration, the valve of the second drain port (63) is opened. The separation tank (60) has an oil outlet (65) communicating with the storage cavity (61) for discharging the lubricating oil in the storage cavity (61). The oil scraping assembly (70) includes a drive part (71) and an oil scraping part (72) that are slidably connected. At least a portion of the drive part (71) is located in the receiving cavity (31) and is connected to the body (34) for driving the oil scraping part (72) to move toward the liquid inlet (62). The oil scraping part (72) is located in the receiving cavity (31).

2. The processing apparatus according to claim 1, characterized in that, The exhaust section (42) has a plurality of spaced exhaust holes (421), the exhaust holes (421) are located on the side of the exhaust section (42) away from the connecting pipe (41), and the exhaust holes (421) are used to discharge the gas in the gas-liquid separation chamber (21) into the processing liquid (33); The exhaust section (42) is circular, the radius of the exhaust section (42) is H, and the minimum distance from the exhaust hole (421) to the outer periphery of the exhaust section (42) is h, satisfying: h / H≥1 / 3.

3. The processing apparatus according to claim 1, characterized in that, The first concentration sensor (35) is configured to open the valve of the first drain port (341) when it senses that the treatment liquid (33) has reached a preset concentration. The circulation component (36) includes a first pump body (361) and a first guide pipe (362) and a second guide pipe (363) connected to the first pump body (361). The first guide pipe (362) and the second guide pipe (363) are both connected to the body (34) and are at least partially located in the receiving cavity (31). The first pump body (361) is configured to transfer the treatment liquid (33) at the bottom of the receiving cavity (31) to the side of the exhaust section (42) away from the connecting pipe (41) through the first guide pipe (362) and the second guide pipe (363).

4. The processing apparatus according to claim 3, characterized in that, The processing component (30) includes: A spray assembly (50) is located at least partially within the receiving cavity (31) and connected to the body (34), the spray assembly (50) being used to spray the treatment liquid (33) into the receiving cavity (31); The first liquid level sensor (37) is located in the receiving cavity (31) and connected to the body (34). Along the height direction (X) of the processing liquid (33), the distance from the first liquid level sensor (37) to the bottom wall of the receiving cavity (31) is greater than the distance from the exhaust part (42) to the bottom wall of the receiving cavity (31). The second liquid level sensor (38) is located inside the receiving cavity (31) and connected to the body (34). Along the height direction (X) of the processing liquid (33), the distance from the second liquid level sensor (38) to the bottom wall of the receiving cavity (31) is less than the distance from the first liquid level sensor (37) to the bottom wall of the receiving cavity (31), and the distance from the second liquid level sensor (38) to the bottom wall of the receiving cavity (31) is not less than the distance from the exhaust portion (42) to the bottom wall of the receiving cavity (31).

5. The processing apparatus according to claim 4, characterized in that, The processing component (30) includes: The third liquid level sensor (39) is located inside the receiving cavity (31) and connected to the body (34). Along the height direction (X) of the processing liquid (33), the distance from the third liquid level sensor (39) to the bottom wall of the receiving cavity (31) is less than the distance from the second liquid level sensor (38) to the bottom wall of the receiving cavity (31).

6. The processing apparatus according to claim 4, characterized in that, The spray assembly (50) includes: A spray section (51) is at least partially located within the receiving cavity (31) and connected to the body (34). At least a portion of the spray section (51) is located on the side of the exhaust section (42) facing the connecting pipe (41) to spray the treatment liquid (33) onto the exhaust section (42). A liquid storage section (52) and a second pump body section (53) are connected to each other. The liquid storage section (52) and the second pump body section (53) are located outside the receiving cavity (31). The second pump body section (53) is connected to the spray section (51). The second pump body section (53) is configured to spray the treatment liquid (33) in the liquid storage section (52) through the spray section (51).

7. The processing apparatus according to claim 5, characterized in that, Along the height direction (X) of the treatment liquid (33), the distance from the inlet (62) to the bottom wall of the receiving cavity (31) is the same as the distance from the first liquid level sensor (37) to the bottom wall of the receiving cavity (31).

8. The processing apparatus according to claim 7, characterized in that, The separation box (60) includes: The fourth liquid level sensor (64) is connected to the separation tank (60) and located in the storage cavity (61) for sensing the height of the liquid in the storage cavity (61).

9. The processing apparatus according to claim 8, characterized in that, Along the height direction (X) of the processing liquid (33), the distance from the oil outlet (65) to the bottom wall of the storage cavity (61) is less than the distance from the liquid inlet (62) to the bottom wall of the storage cavity (61), and the distance from the fourth liquid level sensor (64) to the bottom wall of the storage cavity (61) is less than the distance from the oil outlet (65) to the bottom wall of the storage cavity (61).

10. The processing apparatus according to claim 7, characterized in that, The oil scraping part (72) includes: A rotatably connected connecting plate (721) and scraper (722) are provided, wherein the connecting plate (721) is slidably connected to the drive unit (71), and at least a portion of the scraper (722) is located within the treatment liquid (33); A connecting line (723) is connected to the connecting plate (721) and the scraper (722) respectively. The connecting line (723) is located on the side of the connecting plate (721) facing the liquid inlet (62) so that the included angle between the connecting plate (721) and the scraper (722) is an obtuse angle.

11. The processing apparatus according to claim 7, characterized in that, The oil scraping assembly (70) includes: A guide portion (73) is located inside the receiving cavity (31) and connected to the body (34). The guide portion (73) penetrates the oil scraping portion (72) to guide the oil scraping portion (72) along the length direction (Y) of the guide portion (73).

12. The processing apparatus according to claim 1, characterized in that, The processing device includes: The second concentration sensor (80) is located inside the receiving cavity (31) and connected to the processing assembly (30). The second concentration sensor (80) is disposed on the top wall of the receiving cavity (31), and the gas outlet (32) is also disposed on the top wall of the receiving cavity (31). The second concentration sensor (80) is configured to sense the concentration of the processed gas. Along the height direction (X) of the treatment liquid (33), the top wall of the receiving cavity (31) is arranged opposite to the bottom wall of the receiving cavity (31).

13. A processing method, characterized in that, The processing method is based on the processing apparatus of claim 8 or 9, and is used to process the exhaust of the engine (10), the processing method comprising: The exhaust from the engine (10) is fed into the separation assembly (20) for gas-liquid separation; The gas after gas-liquid separation is discharged into the receiving cavity (31) of the processing assembly (30) through the exhaust section (42) of the exhaust assembly (40), so that the processing liquid (33) in the receiving cavity (31) processes the gas.

14. The processing method according to claim 13, characterized in that, The processing method further includes: The concentration of the treatment liquid (33) is sensed by a first concentration sensor (35). When the concentration of the treatment liquid (33) in the receiving cavity (31) is sensed to reach a preset concentration, the valve of the first drain port (341) is opened to discharge the treatment liquid (33) in the receiving cavity (31), and the spray assembly (50) sprays the treatment liquid (33) into the receiving cavity (31); the rate of discharge of the treatment liquid (33) is greater than the rate of spraying the treatment liquid (33); The third liquid level sensor (39) is used to sense the liquid level in the receiving cavity (31) during drainage. When the liquid level in the receiving cavity (31) drops to the position of the third liquid level sensor (39), the valve of the first drainage port (341) is closed. The first liquid level sensor (37) is used to sense the liquid level in the receiving cavity (31). When the liquid level in the receiving cavity (31) rises to the position of the first liquid level sensor (37), the spray assembly (50) stops spraying the treatment liquid (33). The second liquid level sensor (38) is used to sense the liquid level in the container (31). When the liquid level in the container (31) drops to the position of the second liquid level sensor (38), the spray assembly (50) starts spraying until the liquid level in the container (31) rises to the position of the first liquid level sensor (37).

15. The processing method according to claim 14, characterized in that, The processing method further includes: The processing fluid (33) and lubricating oil are scraped into the storage chamber (61) by the scraping assembly (70). When the first concentration sensor (35) senses that the concentration of the processing fluid (33) in the storage chamber (31) reaches the preset concentration, the valve of the second drain port (63) is opened to discharge the processing fluid (33) in the storage chamber (61). The liquid level in the storage chamber (61) is sensed by a fourth liquid level sensor (64). When the liquid level in the storage chamber (61) drops to the position of the fourth liquid level sensor (64), the valve of the second drain port (63) is closed. When the liquid level in the storage chamber (61) rises to the position of the oil outlet (65), the lubricating oil in the storage chamber (61) is discharged through the oil outlet (65).

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