Oil-containing steam stage treatment device and oil-containing waste gas condensation recovery equipment

Abstract

The utility model provides an oil-containing steam stage treatment device and oil-containing waste gas condensation recovery equipment. The oil-containing steam staged treatment device comprises a refrigeration assembly, a combustion degreaser, a precooling concentration tower and an oil gas guide pipe, the refrigerating assembly comprises a refrigerating machine, a low-level refrigerant pipe and a high-level refrigerant pipe which are connected in an abutting mode. An inner cavity of the pre-cooling concentration tower is sequentially divided into a multi-stage pre-cooling cavity and a condensed water storage cavity which are communicated with each other from top to bottom; the interior of the multi-stage precooling cavity is divided into a low-stage condensation chamber and a high-stage condensation chamber; a condensation part of the low-stage refrigerant pipe is arranged in the low-stage condensation chamber, and a condensation part of the high-stage refrigerant pipe is arranged in the high-stage condensation chamber; the gas inlet end of the oil-gas guide pipe penetrates through the high-grade condensation chamber; the advanced condensation chamber is communicated with a pipe cavity of the oil-gas guide pipe; the exhaust end of the oil gas guide pipe is communicated with the gas inlet end of the combustion degreaser, oil-containing steam can sequentially pass through the precooling concentration tower and the combustion degreaser to be concentrated and combusted, so that oil-containing filter materials are prevented from being generated, and the use is more energy-saving and environment-friendly.

Description

Technical Field

[0001] The present disclosure relates to the technical field of oily waste gas treatment, and in particular to an oily vapor classification treatment device and oily waste gas condensation recovery equipment. Background Art

[0002] During the battery material production process, steam is used extensively as a power source and heat medium. During this process, steam carries some oil, forming oil-laden vapor. The oil concentration in oil-laden vapor ranges from 0.5mg / L to 5mg / L. Directly discharging this vapor not only wastes water resources but also pollutes the environment.

[0003] To achieve energy conservation and emission reduction, traditional oil-containing vapor is typically condensed into oil-containing distilled water. The main oil removal processes for oil-containing distilled water include salting out, coagulation, flotation, coarse granulation, membrane separation, adsorption, and biological methods. Given the high temperature characteristics of steam condensate and the need to avoid the introduction of external contaminants, membrane filtration is currently the most commonly used process for treating oil-containing distilled water in China.

[0004] For example, Chinese patent document CN219922319U discloses a filtering and processing device for oil-containing distilled water, including a lifting filter tank inside a box body connected to a diaphragm pump, the diaphragm pump is connected to a safety filter, the safety filter is connected to an ultrafiltration device, and a solenoid valve is installed between the liquid outlet of the lifting filter tank and the diaphragm pump. The lifting filter tank is provided with an oil-separating cotton groove and a low liquid level float, a high liquid level float and an ultra-high liquid level float hung at different heights. The relay is electrically connected to the low liquid level float, the high liquid level float, the ultra-high liquid level float, the solenoid valve, the diaphragm pump, the first safety filter, the second safety filter and the ultrafiltration device respectively.

[0005] However, the design of the above-mentioned filtering and treating device for oily distilled water has the following problems:

[0006] While the aforementioned filtration device for oil-containing distilled water effectively removes oil from the water, the oil absorbed into the lift filter tank produces a large amount of oil-containing filter material, which is considered hazardous waste and still poses a hazard to the environment. Furthermore, because the temperature of the oil vapor is much higher than that of ordinary water vapor, the condensation of the oil vapor into oil-containing distilled water consumes a significant amount of additional electricity, resulting in high costs. Utility Model Content

[0007] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an oil-containing vapor classification treatment device and an oil-containing waste gas condensation recovery device that can fully remove oil and is more energy-saving and environmentally friendly.

[0008] The purpose of this disclosure is achieved through the following technical solutions:

[0009] An oil-containing vapor classification treatment device, comprising:

[0010] A refrigeration assembly, comprising a refrigerator, a low-level refrigerant pipe, and a high-level refrigerant pipe, wherein a refrigeration chamber of the refrigerator is connected to the low-level refrigerant pipe and the high-level refrigerant pipe, respectively, and the refrigerator is used to cool the refrigerant;

[0011] The oil-containing vapor classification treatment device also includes a pre-cooling concentration tower, an oil and gas conduit and a combustion deoiler;

[0012] The pre-cooling and concentrating tower is provided with a multi-stage pre-cooling chamber and a condensed water storage chamber from top to bottom, and a liquid-passing partition is provided between the multi-stage pre-cooling chamber and the condensed water storage chamber; a vertical partition is provided in the multi-stage pre-cooling chamber, and both ends of the vertical partition are extended and connected to the top of the multi-stage pre-cooling chamber and the liquid-passing partition respectively, so as to separate the multi-stage pre-cooling chamber into a low-stage condensing chamber and a high-stage condensing chamber; the high-stage condensing chamber is arranged on the inside of the low-stage condensing chamber, and an air-passing channel is provided on the wall of the vertical partition, and the low-stage condensing chamber is connected to the high-stage condensing chamber through the air-passing channel; the vapor inlet of the pre-cooling and concentrating tower is connected to the low-stage condensing chamber, and the low-stage condensing chamber and the high-stage condensing chamber are both connected to the condensed water storage chamber through the corresponding liquid-passing holes of the liquid-passing partition; the condensation part of the low-stage refrigerant pipe is arranged in the low-stage condensing chamber, and the condensation part of the high-stage refrigerant pipe is arranged in the high-stage condensing chamber to condense and concentrate the oil-containing vapor;

[0013] The oil and gas conduit is arranged at the top of the pre-cooling concentration tower; the air inlet end of the oil and gas conduit is connected to the liquid-passing baffle through the high-level condensation chamber; an air inlet is provided on the peripheral wall of the air inlet end of the oil and gas conduit, and the high-level condensation chamber is connected to the lumen of the oil and gas conduit through the air inlet; the exhaust end of the oil and gas conduit is connected to the air inlet end of the combustion deoiler, and the combustion deoiler is used to burn the concentrated oil-containing vapor.

[0014] In one embodiment, the vertical partition tube includes a partition inner tube and a partition outer tube, the partition outer tube is sleeved outside the partition inner tube; an intermediate condensation chamber is formed between the partition outer tube and the partition inner tube, and the intermediate condensation chamber is connected to the condensed water storage chamber through the liquid hole of the liquid partition plate; a first air outlet is formed at the top end of the wall of the partition outer tube, and a second air outlet is formed at the bottom end of the wall of the partition inner tube, and the first air outlet, the intermediate condensation chamber and the second air outlet are connected in sequence to form the air passage;

[0015] The refrigeration assembly further includes an intermediate refrigerant pipe, which is connected to the refrigeration cavity of the refrigerator, and a condensation portion of the intermediate refrigerant pipe is arranged in the intermediate condensation chamber.

[0016] In one embodiment, the condensation section of the low-stage refrigerant pipe is divided into a low-stage liquid delivery section, a low-stage annular heat exchange section and a low-stage exhaust section in sequence along the flow direction of the refrigerant, the low-stage annular heat exchange section forming the condensation section of the low-stage refrigerant pipe, and the low-stage annular heat exchange section is sleeved outside the partition outer cylinder; and / or,

[0017] The intermediate refrigerant pipe condensation section is divided into an intermediate liquid delivery section, an intermediate annular heat exchange section and an intermediate exhaust section in sequence along the flow direction of the refrigerant, the intermediate annular heat exchange section forming the condensation section of the intermediate refrigerant pipe, and the intermediate annular heat exchange section is sleeved outside the partition inner cylinder; and / or,

[0018] The condensation section of the high-level refrigerant pipe is divided into a high-level liquid delivery section, a high-level annular heat exchange section and a high-level exhaust section in sequence along the flow direction of the refrigerant. The high-level annular heat exchange section forms the condensation section of the high-level refrigerant pipe, and the high-level annular heat exchange section is sleeved on the outer periphery of the air inlet end of the oil and gas conduit.

[0019] In one embodiment, the combustion deoiler includes a combustion chamber, a plurality of pointed electrodes, a plurality of vertical baffles and a power supply, each of the vertical baffles is arranged in the inner cavity of the combustion chamber, and the exhaust end of the oil and gas conduit is connected to the air inlet end of the combustion chamber; a plurality of the vertical baffles are arranged side by side from the air inlet end of the combustion chamber to the air outlet end of the combustion chamber to divide the inner cavity of the combustion chamber into a plurality of combustion chambers; each of the pointed electrodes is arranged in each of the combustion chambers one by one and is electrically connected to the power supply respectively; a connecting port is opened on each of the vertical baffles, and two adjacent combustion chambers are connected through the corresponding connecting port to form an overflow combustion path; the air inlet end of the combustion chamber is connected to the air outlet end of the combustion chamber through the overflow combustion path.

[0020] In one embodiment, a number of the tip electrodes are divided into a plurality of first tip electrodes and a plurality of second tip electrodes; a number of combustion chambers are divided into a plurality of first combustion chambers and a plurality of second combustion chambers, and the plurality of first combustion chambers and the plurality of second combustion chambers are alternately arranged in sequence from the air inlet end of the combustion chamber to the air outlet end of the combustion chamber; each of the first tip electrodes is vertically arranged one by one in the corresponding first combustion chamber, and each of the second tip electrodes is vertically arranged one by one in the corresponding second combustion chamber; a first discharge tip is protruding from the bottom end of each first tip electrode, and a second discharge tip is protruding from the top end of each first tip electrode; between each second tip electrode and the two adjacent first tip electrodes, each second discharge tip is arranged opposite to the top end of the first tip electrode in front through the corresponding connecting port, and the bottom end of the second tip electrode is arranged opposite to the first discharge tip of the first tip electrode in the back through the corresponding connecting port to form the overcurrent combustion path.

[0021] In one embodiment, each of the tip electrodes includes a heat-resistant insulating body, a positive tip electrode and a negative tip electrode, and the positive tip electrode and the negative tip electrode are embedded in parallel in the heat-resistant insulating body; the positive tip electrode is electrically connected to the positive pole of the power supply, and the negative tip electrode is electrically connected to the negative pole of the power supply, and the discharge tip of the positive tip electrode and the discharge tip of the negative tip electrode are both protruding from the same end of the heat-resistant insulating body.

[0022] In one embodiment, the combustion degreaser also includes an oil residue collection tank, and a slag discharge port is respectively opened at the bottom of each combustion chamber, and each slag discharge port is located above the slot of the oil residue collection tank; each slag discharge port is separated from the slot of the oil residue collection tank by an opening and closing structure; when the opening and closing structure is opened, each combustion chamber is connected to the slot of the oil residue collection tank through the corresponding slag discharge port.

[0023] In one embodiment, an opening and closing area is provided between each of the slag discharge ports and the slot opening of the oil residue collecting tank, and the opening and closing structure includes a first material collection push plate and a second material collection push plate; the first material collection push plate and the second material collection push plate are both horizontally placed in the opening and closing area, and are respectively slidably connected to the slot wall of the oil residue collecting tank; the first material collection push plate and the second material collection push plate are arranged opposite to each other, and can slide relative to each other to close or open each of the slag discharge ports.

[0024] In one embodiment, a booster pump is further provided between the oil and gas conduit and the combustion deoiler, the gas outlet end of the oil and gas conduit is connected to the gas inlet end of the booster pump, and the gas outlet end of the booster pump is connected to the gas inlet end of the combustion deoiler.

[0025] An oily waste gas condensation recovery device, comprising an evaporation tower, a condensed water tank, a condensed water recycling pipe, and an oily vapor classification treatment device according to any one of the above embodiments;

[0026] The steam outlet of the evaporation tower is connected to the steam inlet of the pre-cooling concentration tower, the gas outlet end of the combustion chamber is connected to the gas inlet end of the condensed water tank, and the liquid outlet end of the condensed water tank and the condensed water storage chamber are respectively connected to the condensed water return pipe.

[0027] Compared with the prior art, the present disclosure has at least the following advantages:

[0028] 1) By arranging vertical partitions within the multi-stage pre-cooling chamber, the multi-stage pre-cooling chamber can be divided into a low-stage condensing chamber and a high-stage condensing chamber. The vapor inlet of the pre-cooling concentration tower is connected to the low-stage condensing chamber, which is connected to the high-stage condensing chamber via an air passage. The condensation portion of the low-stage refrigerant pipe is arranged in the low-stage condensing chamber, and the condensation portion of the high-stage refrigerant pipe is arranged in the high-stage condensing chamber. This allows the oil-containing vapor entering through the vapor inlet of the pre-cooling concentration tower to flow through the low-stage condensing chamber and the high-stage condensing chamber in sequence to achieve multi-stage condensation. The condensation point of the water vapor in the oil-containing vapor is higher than the condensation point of the oil in the oil-containing vapor, so that the water vapor in the oil-containing vapor will be condensed into condensed water step by step in the low-stage condensing chamber and the high-stage condensing chamber, thereby increasing the oil concentration in the oil-containing vapor. Compared with the prior art filtering treatment device for oil-containing distilled water, the oil-containing vapor graded treatment device disclosed herein only needs to condense the water vapor in the oil-containing vapor, avoiding the additional energy consumption caused by condensing the entire oil-containing vapor, thereby reducing the cost of use.

[0029] 2) Because the advanced condensation chamber is connected to the lumen of the oil-gas conduit via the air inlet, and the exhaust end of the conduit is connected to the air inlet of the combustion degreaser, the oil-containing vapor, after condensation and concentration, can enter the combustion degreaser for combustion and removal. Compared to existing filtration devices for treating oil-containing distilled water, the disclosed oil-containing vapor classification treatment device burns the oil in the concentrated oil-containing vapor, without generating additional oil-containing filter material, making it more environmentally friendly.

[0030] 3) Because the low-level condensation chamber and the high-level condensation chamber are respectively connected to the condensate storage chamber through the liquid holes of the liquid partition, the condensate will be gathered on the liquid partition under the action of gravity to form a liquid seal effect, and the oil-containing vapor will not enter the condensate storage chamber through the liquid holes of the liquid partition and leak out. At the same time, the condensate can be collected into the condensate storage chamber through the liquid holes of the liquid partition, so that the condensate can be conveniently reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 This is a schematic structural diagram of an oil-containing vapor classification processing device according to an embodiment of the present disclosure;

[0033] Figure 2 for Figure 1 The schematic diagram of the structure of the refrigeration component and pre-cooling concentration tower of the oil vapor classification treatment device shown;

[0034] Figure 3 for Figure 2 A cross-sectional view along C1-C2 of the pre-cooling and concentrating tower of the oil-containing vapor fractionation treatment device shown;

[0035] Figure 4 for Figure 1 The schematic diagram of the structure of the combustion deoiler of the oil vapor staged treatment device shown;

[0036] Figure 5 for Figure 4 A partial enlarged view of a combustion deoiler of an oily vapor staged treatment device shown;

[0037] Figure 6 This is a structural schematic diagram of an oil-containing waste gas condensation recovery device according to another embodiment of the present disclosure.

[0038] Figure 10, oily waste gas condensation recovery equipment; 100, evaporation tower; 110, steam outlet; 200, oily vapor classification treatment device; 210, refrigeration component; 2110, refrigerator; 211a, low-level liquid refrigerant outlet; 211b, low-level gaseous refrigerant inlet; 211c, intermediate liquid refrigerant outlet; 211d, intermediate gaseous refrigerant inlet; 211e, high-level liquid refrigerant outlet; 211f, high-level gaseous refrigerant inlet; 2120, low-level refrigerant pipe; 212a, low-level liquid delivery section; 212b, low-level annular exchange Hot section; 212c, low-level exhaust section; 2130, intermediate refrigerant pipe; 213a, intermediate liquid delivery section; 213b, intermediate annular heat exchange section; 213c, intermediate exhaust section; 2140, high-level refrigerant pipe; 214a, high-level liquid delivery section; 214b, high-level annular heat exchange section; 214c, high-level exhaust section; 220, pre-cooling concentration tower; 2210, multi-stage pre-cooling chamber; 2211, low-level condensing chamber; 2212, high-level condensing chamber; 2213, steam inlet; 2220, condensed water storage chamber; 2230, liquid-passing baffle; 2231, Liquid hole; 2240, vertical partition; 2241, outer cylinder separation; 2242, inner cylinder separation; 2243, gas passage; 224a, first gas port; 224b, intermediate condensation chamber; 224c, second gas port; 230, oil and gas conduit; 2310, air inlet; 240, combustion degreaser; 2410, combustion chamber; 2411, combustion chamber; 241a, first combustion chamber; 241b, second combustion chamber; 241c, slag outlet; 2420, tip electrode; 242a, heat-resistant insulating body; 242b, positive Tip pole piece; 242c, negative tip pole piece; 2421, first tip electrode; 242d, first discharge tip; 2422, second tip electrode; 242e, second discharge tip; 2430, vertical partition; 2431, connecting port; 343a, overcurrent combustion passage; 2440, power supply; 2450, oil residue collecting tank; 2460, opening and closing structure; 2461, first aggregate push plate; 2462, second aggregate push plate; 250, booster pump; 300, condensate tank; 310, condensate filler; 400, condensate return pipe. DETAILED DESCRIPTION

[0039] To facilitate understanding of the present disclosure, a more comprehensive description of the present disclosure will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present disclosure. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure.

[0040] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this disclosure pertains. The terms used herein in the specification of this disclosure are intended only to describe specific embodiments and are not intended to limit this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0042] In order to better understand the technical solutions and beneficial effects of the present disclosure, the present disclosure is further described in detail below with reference to specific embodiments:

[0043] like Figure 1As shown, an oil vapor classification treatment device 200 of an embodiment includes a refrigeration component 210, a pre-cooling concentration tower 220, an oil and gas conduit 230 and a combustion de-oiler 240; the refrigeration component 210 includes a refrigerator 2110, a low-level refrigerant pipe 2120 and a high-level refrigerant pipe 2140, and the refrigeration cavity of the refrigerator 2110 is connected to the low-level refrigerant pipe 2120 and the high-level refrigerant pipe 2140 respectively, and the refrigerator 2110 is used to cool the refrigerant; the pre-cooling concentration tower 220 is provided with a multi-stage pre-cooling cavity 2210 and a condensing water conduit 2210 in sequence from top to bottom. A liquid-passing partition 2230 is provided between the storage chamber 2220, the multi-stage pre-cooling chamber 2210 and the condensed water storage chamber 2220; a vertical partition 2240 is provided in the multi-stage pre-cooling chamber 2210, and both ends of the vertical partition 2240 are respectively extended to the top of the multi-stage pre-cooling chamber 2210 and the liquid-passing partition 2230 to separate the multi-stage pre-cooling chamber 2210 into a low-stage condensing chamber 2211 and a high-stage condensing chamber 2212; the high-stage condensing chamber 2212 is provided inside the low-stage condensing chamber 2211, and a gas-passing opening is provided on the wall of the vertical partition 2240. Channel 2243, the low-stage condensing chamber 2211 is connected to the high-stage condensing chamber 2212 through the gas channel 2243; the steam inlet 2213 of the pre-cooling concentration tower 220 is connected to the low-stage condensing chamber 2211, and the low-stage condensing chamber 2211 and the high-stage condensing chamber 2212 are both connected to the condensed water storage chamber 2220 through the corresponding liquid holes 2231 of the liquid partition 2230; the condensation part of the low-stage refrigerant pipe 2120 is set in the low-stage condensing chamber 2211, and the condensation part of the high-stage refrigerant pipe 2140 is set in the high-stage condensing chamber 221 2, to condense the oil-containing vapor; the oil-gas conduit 230 is arranged at the top of the pre-cooling concentration tower 220; the air inlet end of the oil-gas conduit 230 is connected to the liquid-passing partition 2230 through the high-level condensing chamber 2212; an air inlet 2310 is opened on the peripheral wall of the air inlet end of the oil-gas conduit 230, and the high-level condensing chamber 2212 is connected to the lumen of the oil-gas conduit 230 through the air inlet 2310; the exhaust end of the oil-gas conduit 230 is connected to the air inlet end of the combustion de-oiler 240, which is used to burn the concentrated oil-containing vapor.

[0044] It can be understood that by arranging the vertical partition 2240 in the multi-stage pre-cooling chamber 2210, the multi-stage pre-cooling chamber 2210 can be divided into a low-stage condensing chamber 2211 and a high-stage condensing chamber 2212, and the steam inlet 2213 of the pre-cooling concentration tower 220 is connected to the low-stage condensing chamber 2211, and the low-stage condensing chamber 2211 is connected to the high-stage condensing chamber 2212 through the gas passage 2243. The condensing part of the low-stage refrigerant pipe 2120 is arranged in the low-stage condensing chamber 2211, and the condensing part of the high-stage refrigerant pipe 2140 is arranged in the low-stage condensing chamber 2211. The condenser is located in the high-stage condensation chamber 2212, allowing the oil-containing vapor entering through the vapor inlet 2213 of the pre-cooling concentration tower 220 to flow sequentially along path A through the low-stage condensation chamber 2211 and the high-stage condensation chamber 2212 to achieve multi-stage condensation. The condensation point of the water vapor in the oil-containing vapor is higher than the condensation point of the oil in the oil-containing vapor, so that the water vapor in the oil-containing vapor is gradually condensed into condensed water in the low-stage condensation chamber 2211 and the high-stage condensation chamber 2212, thereby increasing the oil concentration in the oil-containing vapor. Compared with the prior art filtering and processing devices for oil-containing distilled water, the oil-containing vapor classification processing device 200 of this embodiment only needs to condense the water vapor in the oil-containing vapor, avoiding the additional energy consumption caused by condensing the entire oil-containing vapor, thereby reducing usage costs.

[0045] As can be understood, because high-level condensation chamber 2212 is connected to the lumen of oil-gas conduit 230 via air inlet 2310, and the exhaust end of oil-gas conduit 230 is connected to the air inlet of combustion de-oiler 240, the oil-containing vapor, after condensation and concentration, can enter combustion de-oiler 240 for combustion and removal. Compared to conventional filtering devices for oil-containing distilled water, the oil-containing vapor classification treatment device 200 of this embodiment burns the oil in the concentrated oil-containing vapor, without generating additional oil-containing filter material, making it more environmentally friendly.

[0046] It can be understood that because the low-level condensation chamber 2211 and the high-level condensation chamber 2212 are respectively connected to the condensate storage chamber 2220 through the corresponding liquid holes 2231 of the liquid-passing partition 2230, the condensate will be gathered on the liquid-passing partition 2230 under the action of gravity to form a liquid seal effect, and the oil-containing vapor will not enter the condensate storage chamber 2220 through the liquid holes 2231 of the liquid-passing partition 2230 and leak out. At the same time, the condensate can be collected into the condensate storage chamber 2220 through the liquid holes 2231 of the liquid-passing partition 2230, so that the condensate can be conveniently reused.

[0047] Combine Figure 2As shown, in one embodiment, the oil in the oil-containing vapor can be one or more of dioctyl phosphate (P204), ethylhexyl mono-2-ethylhexyl phosphate (P5072), tributyl phosphate (TBP), or 260# solvent oil. This allows the condensation point of the oil in the oil-containing vapor to be lower than the condensation point of the water vapor in the oil-containing vapor, making it easier to condense the water vapor in the oil-containing vapor through the low-level refrigerant pipe 2120 and the high-level refrigerant pipe 2140, thereby increasing the concentration of the oil in the oil-containing vapor. In this embodiment, the condensation point of the oil in the oil-containing vapor is 80°C, which is much lower than the condensation point of the water vapor in the oil-containing vapor of 100°C. Simultaneously, the surface temperature of the low-level refrigerant pipe 2120 ranges from 93°C to 100°C, and the surface temperature of the high-level refrigerant pipe 2140 ranges from 85°C to 92°C. It can be understood that the condensation temperature changes of the low-level refrigerant pipe 2120 and the high-level refrigerant pipe 2140 are continuous. When the oil-containing vapor passes through the low-level condensation chamber 2211, the low-level refrigerant pipe 2120 can condense the water vapor in the oil-containing vapor once, and when the oil-containing vapor passes through the high-level condensation chamber 2212, the high-level refrigerant pipe 2140 condenses the remaining water vapor in the oil-containing vapor for a second time, ultimately achieving the effect of step-by-step continuous condensation, avoiding the occurrence of local uneven condensation caused by sudden cooling of the oil-containing vapor.

[0048] Combine Figure 2 and Figure 3 As shown, in this embodiment, the vertical partition tube 2240 includes a partition inner tube 2242 and a partition outer tube 2241, and the partition outer tube 2241 is sleeved outside the partition inner tube 2242; an intermediate condensation chamber 224b is formed between the partition outer tube 2241 and the partition inner tube 2242, and the intermediate condensation chamber 224b is connected to the condensation water storage chamber 2220 through the liquid hole 2231 of the liquid partition plate 2230; a first An air inlet 224a is provided, and a second air inlet 224c is provided at the bottom end of the wall separating the inner tube 2242. The first air inlet 224a, the intermediate condensation chamber 224b and the second air inlet 224c are connected in sequence to form an air passage 2243; the refrigeration component 210 also includes an intermediate refrigerant pipe 2130, which is connected to the refrigeration cavity of the refrigerator 2110, and the condensation part of the intermediate refrigerant pipe 2130 is arranged in the intermediate condensation chamber 224b.

[0049] As can be understood, because intermediate condensation chamber 224b is formed between partitioned inner tube 2242 and partitioned outer tube 2241, the condensation portion of intermediate refrigerant pipe 2130 is disposed within intermediate condensation chamber 224b. By providing first air port 224a at the top of the wall of partitioned outer tube 2241, the oil-containing vapor that has undergone primary condensation in low-stage condensation chamber 2211 can enter intermediate condensation chamber 224b through first air port 224a for secondary condensation. By providing second air port 224c at the bottom of the wall of partitioned inner tube 2242, the oil-containing vapor that has undergone secondary condensation can enter high-stage condensation chamber 2212 through second air port 224c for tertiary condensation, thereby achieving a three-stage condensation effect. The condensation path of the oil-containing vapor along path A through the three-stage condensation is longer, and the water vapor concentration decreases more steadily, thereby causing the oil concentration in the oil-containing vapor to increase more steadily, ultimately making the oil concentration process more stable and efficient.

[0050] It can be understood that the low-level condensation chamber 2211, the intermediate condensation chamber 224b and the high-level condensation chamber 2212 are respectively connected to the condensate storage chamber 2220 through the liquid hole 2231 of the liquid partition 2230, so that the condensed water condensed in the low-level condensation chamber 2211, the intermediate condensation chamber 224b and the high-level condensation chamber 2212 can all be gathered into the condensate storage chamber 2220 through the liquid hole 2231 of the liquid partition 2230, which is more convenient for centralized processing.

[0051] Specifically, the surface temperature of the low-level refrigerant pipe 2120 ranges from 95°C to 100°C, the temperature of the intermediate refrigerant pipe 2130 ranges from 90°C to 95°C, and the temperature of the high-level refrigerant pipe 2140 ranges from 85°C to 90°C. It is understood that as the oil-containing vapor sequentially flows through the low-level condensation chamber 2211, the intermediate condensation chamber 224b, and the high-level condensation chamber 2212, the temperature of the oil-containing vapor can be more steadily and continuously decreased, making the overall condensation of the oil-containing vapor more uniform and sufficient, and ultimately further increasing the concentration of oil in the oil-containing vapor to facilitate subsequent combustion in the de-oiling chamber.

[0052] Combine Figure 2 and Figure 3As shown, in one embodiment, the low-stage refrigerant pipe 2120 is sequentially divided into a low-stage liquid delivery section 212a, a low-stage annular heat exchange section 212b, and a low-stage exhaust section 212c along the refrigerant flow direction B. The low-stage annular heat exchange section 212b forms the condensation portion of the low-stage refrigerant pipe 2120 and is sleeved outside the partition outer cylinder 2241. It can be understood that because the low-stage annular heat exchange section 212b is sleeved outside the partition inner cylinder 2242, the condensation effect on the periphery of the partition outer cylinder 2241 can be made uniform. Meanwhile, the condensation section of the intermediate refrigerant pipe 2130 is sequentially divided along the refrigerant flow direction B into an intermediate liquid delivery section 213a, an intermediate annular heat exchange section 213b, and an intermediate exhaust section 213c. The intermediate annular heat exchange section 213b forms the condensation section of the intermediate refrigerant pipe 2130 and is sheathed around the partition inner tube 2242. It can be understood that because the intermediate annular heat exchange section 213b is sheathed around the partition inner tube 2242, the condensation effect around the outer periphery of the partition inner tube 2242 is uniform. Furthermore, the condensation section of the high-level refrigerant pipe 2140 is sequentially divided along the refrigerant flow direction B into a high-level liquid delivery section 214a, a high-level annular heat exchange section 214b, and a high-level exhaust section 214c. The high-level annular heat exchange section 214b forms the condensation section of the high-level refrigerant pipe 2140 and is sheathed around the outer periphery of the air inlet end of the oil and gas conduit 230. It can be understood that because the high-level annular heat exchange section 214b is sleeved on the periphery of the air inlet end of the oil and gas conduit 230, the condensation effect on the periphery of the air inlet end of the oil and gas conduit 230 can be made consistent.

[0053] Combine Figure 2 Specifically, the low-level liquid delivery section 212a is connected to the low-level liquid refrigerant outlet 211a of the refrigerator 2110, and the low-level exhaust section 212c is connected to the low-level gaseous refrigerant inlet 211b of the refrigerator 2110, enabling the refrigerant to circulate within the low-level refrigerant pipe 2120 to achieve a continuous cooling-condensing process. Simultaneously, the intermediate liquid delivery section 213a is connected to the intermediate liquid refrigerant outlet 211c of the refrigerator 2110, and the intermediate exhaust section 213c is connected to the intermediate gaseous refrigerant inlet 211d of the refrigerator 2110, enabling the refrigerant to circulate within the intermediate refrigerant pipe 2130 to achieve a continuous cooling-condensing process. Furthermore, the high-level liquid delivery section 214a is connected to the high-level liquid refrigerant outlet 211e of the refrigerator 2110, and the high-level exhaust section 214c is connected to the high-level gaseous refrigerant inlet 211f of the refrigerator 2110, which can enable the refrigerant to circulate in the high-level refrigerant pipe 2140 to achieve a continuous refrigeration-condensation process.

[0054] like Figure 4As shown in one embodiment, the combustion de-oiler 240 includes a combustion chamber 2410, a plurality of pointed electrodes 2420, a plurality of vertical baffles 2430 and a power supply 2440. Each vertical baffle 2430 is arranged in the inner cavity of the combustion chamber 2410. The exhaust end of the oil and gas conduit 230 is connected to the air inlet end of the combustion chamber 2410. The plurality of vertical baffles 2430 are arranged side by side from the air inlet end of the combustion chamber 2410 to the air outlet end of the combustion chamber 2410 to separate the combustion chamber 2410. 0 is divided into a plurality of combustion chambers 2411; each pointed electrode 2420 is arranged in each combustion chamber 2411 and is respectively connected to a power supply 2440; each vertical partition 2430 is provided with a connecting port 2431, and two adjacent combustion chambers 2411 are connected through the corresponding connecting port 2431 to form an overflow combustion passage 343a; the air inlet end of the combustion chamber 2410 is connected to the air outlet end of the combustion chamber 2410 through the overflow combustion passage 343a. It can be understood that, because several combustion chambers 2411 are connected through the connecting openings 2431 on the corresponding vertical partitions 2430 to form the overflow combustion passage 343a, the exhaust end of the oil and gas conduit 230 is connected to the intake end of the combustion chamber 2410, and the intake end of the combustion chamber 2410 is connected to the exhaust end of the combustion chamber 2410 through the overflow combustion passage 343a, so that the condensed and concentrated oil-containing vapor discharged from the exhaust end of the oil and gas conduit 230 can enter the exhaust end of the combustion chamber 2410 through the intake end of the combustion chamber 2410 along the path A. The oil vapor flows through the inner cavity and passes through the connecting ports 2431 in turn through the combustion chambers 2411. The tip electrodes 2420 of the combustion chambers 2411 are respectively connected to the power supply 2440, so that the high voltage of the power supply 2440 can be discharged instantaneously through the tip electrodes 2420 in the corresponding combustion chambers 2411 to ignite the oil in the condensed and concentrated oil vapor, so that the oil in the oil vapor can be burned multiple times in the process of flowing through the flow combustion path 343a, thereby making the oil in the oil vapor burn more fully and quickly.

[0055] Combine 4 with Figure 5As shown, in this embodiment, the plurality of tip electrodes 2420 are divided into a plurality of first tip electrodes 2421 and a plurality of second tip electrodes 2422; the plurality of combustion chambers 2411 are divided into a plurality of first combustion chambers 241a and a plurality of second combustion chambers 241b, and the plurality of first combustion chambers 241a and the plurality of second combustion chambers 241b are alternately arranged from the air inlet end of the combustion chamber 2410 to the air outlet end of the combustion chamber 2410; each first tip electrode 2421 is vertically arranged in a corresponding first combustion chamber 241a, and each second tip electrode 2422 is vertically arranged in a corresponding second combustion chamber 241a. 41b; a first discharge tip 242d is protruding from the bottom end of each first tip electrode 2421, and a second discharge tip 242e is protruding from the top end of each first tip electrode 2421; between each second tip electrode 2422 and two adjacent first tip electrodes 2421, each second discharge tip 242e is arranged opposite to the top end of the front first tip electrode 2421 through a corresponding connecting opening 2431, and the bottom end of the second tip electrode 2422 is arranged opposite to the first discharge tip 242d of the rear first tip electrode 2421 through a corresponding connecting opening 2431, so as to form an over-flow combustion path 343a.

[0056] Understandable, combined Figure 5 As shown, because the first combustion chamber 241a and the second combustion chamber 241b are alternately arranged in sequence from the air inlet end of the combustion chamber 2410 to the air outlet end of the combustion chamber 2410, between the second tip electrode 2422 and the two adjacent first tip electrodes 2421, because the top of the front first tip electrode 2421 is opposite to the second discharge tip 242e protruding from the bottom end of the second tip electrode 2422 through the connecting port 2431, the top of the second tip electrode 2422 is opposite to the first discharge tip 242d of the rear first tip electrode 2421, so that the overflow combustion path 343a is S-shaped, which can extend the path length and time of the oil-containing vapor passing through the overflow combustion path 343a, and further enable the oil content of the oil-containing vapor to be more fully burned in the overflow combustion path 343a.

[0057] Understandable, combined Figure 5As shown, the oil-containing vapor can sequentially pass through the top of the first tip electrode 2421 at the front, the second discharge tip 242e protruding from the top of the second tip electrode 2422, the bottom of the second tip electrode 2422, and the first discharge tip 242d protruding from the bottom of the first tip electrode 2421 at the rear while flowing through the overflow combustion path 343a. The oil-containing vapor can repeatedly and alternately pass through the first discharge tip 242d of the first tip electrode 2421 and the second discharge tip 242e of the second tip electrode 2422 while flowing through the overflow combustion path 343a along path A, so that the oil in the oil-containing vapor can be alternately ignited by the first discharge tip 242d and the second discharge tip 242e on a single flow path. After repeated ignition, the oil in the oil-containing vapor will be more fully burned.

[0058] Combine Figure 5 As shown, in this embodiment, each tip electrode 2420 includes a heat-resistant insulating body 242a, a positive tip electrode 242b and a negative tip electrode 242c, and the positive tip electrode 242b and the negative tip electrode 242c are embedded in parallel in the heat-resistant insulating body 242a; the positive tip electrode 242b is electrically connected to the positive pole of the power supply 2440, and the negative tip electrode 242c is electrically connected to the negative pole of the power supply 2440, and the discharge tip of the positive tip electrode 242b and the discharge tip of the negative tip electrode 242c are both protruding from the same end of the heat-resistant insulating body 242a. As can be understood, because positive tip electrode 242b and negative tip electrode 242c are embedded parallel to each other within heat-resistant insulating body 242a, there is no electrical continuity between positive tip electrode 242b and negative tip electrode 2420. The discharge tips of positive tip electrode 242b and negative tip electrode 242c are both protruding from the same end of heat-resistant insulating body 242a. When positive tip electrode 242b is connected to the negative terminal of power source 2440 and negative tip electrode 242c is connected to the negative terminal of power source 2440, a significant potential difference is created between the discharge tips of positive tip electrode 242b and negative tip electrode 242c, resulting in an instantaneous discharge that ignites the oil in the oil-containing vapor. Furthermore, heat-resistant insulating body 242a can withstand the high temperatures of each combustion chamber 2411, effectively protecting positive tip electrode 242b and negative tip electrode 242c. Specifically, the heat-resistant insulating body 242a may be a polyimide structure, which is of course not limited here, and those skilled in the art may also replace it according to heat resistance requirements.

[0059] Combine Figure 4As shown, in one embodiment, the combustion deoiler 240 also includes an oil residue collection tank 2450, and a slag discharge port 241c is respectively opened at the bottom of each combustion chamber 2411, and each slag discharge port 241c is located above the notch of the oil residue collection tank 2450; each slag discharge port 241c is separated from the notch of the oil residue collection tank 2450 by an opening and closing structure 2460; when the opening and closing structure 2460 is opened, each combustion chamber 2411 is connected to the notch of the oil residue collection tank 2450 through the corresponding slag discharge port 241c. It can be understood that because each slag discharge port 241c is separated from the slot of the oil residue collection tank 2450 by the opening and closing structure 2460, when the oil-containing vapor in each combustion chamber 2411 is burned, the opening and closing structure 2460 can be opened regularly so that the oil residue accumulated in each combustion chamber 2411 can enter the oil residue collection tank 2450 through the corresponding slag discharge port 241c respectively. This not only avoids the oil residue from clogging the combustion chambers 2411, but also makes it easier to carry out centralized and unified treatment of the oil residue later.

[0060] Combine Figure 4 As shown, in this embodiment, an opening and closing area is provided between each slag discharge port 241c and the slot of the oil residue collecting tank 2450, and the opening and closing structure 2460 includes a first material collection push plate 2461 and a second material collection push plate 2462; the first material collection push plate 2461 and the second material collection push plate 2462 are both horizontally placed in the opening and closing area, and are respectively slidably connected to the slot wall of the oil residue collecting tank 2450; the first material collection push plate 2461 and the second material collection push plate 2462 are arranged opposite to each other, and can slide relative to each other to close or open each slag discharge port 241c. It can be understood that because the first material collection push plate 2461 and the second material collection push plate 2462 are slidably placed horizontally in the opening and closing area between each slag discharge port 241c and the notch of the oil residue collection tank 2450, the first material collection push plate 2461 and the second material collection push plate 2462 are arranged opposite each other, when the slag discharge port 241c needs to be closed, it is only necessary to push the first material collection push plate 2461 and the second material collection push plate 2462 at the same time to jointly close the notch of the oil residue collection tank 2450. The first and second material collecting push plates 2461 and 2462 slide against the bottom of each combustion chamber 2411 to block each slag discharge port 241c, thereby isolating each combustion chamber 2411 from the oil residue collection tank 2450. When the slag discharge port 241c needs to be opened, the first and second material collecting push plates 2461 and 2462 need only be pulled out simultaneously to open the notch of the oil residue collection tank 2450, thereby reconnecting each combustion chamber 2411 to the oil residue collection tank 2450. The above-mentioned opening and closing structure 2460 is not only simple in structure but also easy to use.

[0061] like Figure 1As shown, in one embodiment, a booster pump 250 is further provided between the oil and gas conduit 230 and the combustion degreaser 240, and the gas outlet end of the oil and gas conduit 230 is connected to the gas inlet end of the booster pump 250, and the gas outlet end of the booster pump 250 is connected to the gas inlet end of the combustion degreaser 240, so that the oil-containing vapor discharged through the gas outlet end of the oil and gas conduit 230 flows faster after being pressurized by the booster pump 250, thereby making the flow of the oil-containing vapor entering the combustion degreaser 240 from the gas inlet end of the combustion degreaser 240 more stable and continuous, which can avoid the flame in the combustion degreaser 240 from backfires and spread back to the pre-cooling concentration tower 220 through the oil and gas conduit 230, and ensure that the oil-containing vapor can burn safely in the combustion degreaser chamber.

[0062] like Figure 6 As shown, the present disclosure further provides an oil-containing waste gas condensation recovery device 10 comprising an evaporation tower 100, a condensate tank 300, a condensate return pipe 400, and an oil-containing vapor classification treatment device 200 according to any of the above-described embodiments. The vapor outlet 110 of the evaporation tower 100 is connected to the vapor inlet 2213 of the pre-cooling and concentrating tower 220, the gas outlet of the combustion chamber 2410 is connected to the gas inlet of the condensate tank 300, and the liquid outlet of the condensate tank 300 and the condensate storage chamber 2220 are respectively connected to the condensate return pipe 400. It can be understood that because the vapor outlet 110 of the evaporation tower 100 is connected to the vapor inlet 2213 of the pre-cooling and concentrating tower 220, the oil-containing vapor generated by the evaporation tower 100 can be introduced into the oil-containing vapor classification treatment device 200 through the vapor inlet 2213 of the pre-cooling and concentrating tower 220. The oil-containing vapor is condensed into cold liquid by the pre-cooling and concentrating tower 220 and collected in the condensate storage chamber 2220. At the same time, the oil in the oil-containing vapor can be fully burned in the combustion chamber 2410, so that the exhaust gas discharged from the air outlet end of the combustion chamber 2410 is mainly water vapor. The water vapor enters the condensation water tank 300 from the air inlet end of the condensation water tank 300 and can be fully condensed into condensed water. The liquid outlet end of the condensation water tank 300 and the condensation water storage chamber 2220 are respectively connected to the condensation water return pipe 400, so that the condensation water collected in the condensation water storage chamber 2220 and the condensation water in the condensation water tank 300 can be gathered in the condensation water return pipe 400, which is more convenient for centralized reuse of the condensation water, thereby effectively reducing the waste of water resources.

[0063] In this embodiment, the condensate tank 300 is filled with condensate filler 310. Condensate filler 310 can be a honeycomb filler or a slanted tube filler, which increases the condensation area and achieves efficient condensation of the steam. Of course, those skilled in the art may also select other types of condensate filler 310 as needed, and this is not a limitation here.

[0064] In one embodiment, for better understanding, the use process of the oily waste gas condensation recovery device 10 of the above embodiment is described as follows:

[0065] The evaporation tower 100 generates oil-containing vapor, which enters the pre-cooling concentration tower 220 through the vapor inlet 2213. The oil-containing vapor is condensed in the pre-cooling concentration tower 220 through multiple stages of condensation to remove most of the water vapor and condense into concentrated oil gas. At the same time, most of the water vapor is condensed and removed and gathered in the condensed water storage chamber 2220 through the liquid partition 2230, and the concentrated oil gas continues to enter the combustion chamber 2410 through the oil and gas conduit 230 to be fully burned. The remaining water vapor enters the condensed water tank 300 through the gas outlet of the combustion chamber 2410 and is fully condensed into condensed water. The condensed water collected in the condensed water storage chamber 2220 and the condensed water in the condensed water tank 300 are collected and reused through the condensed water return pipe 400.

[0066] Compared with the prior art, the present disclosure has at least the following advantages:

[0067] 1) By arranging the vertical partition 2240 in the multi-stage pre-cooling chamber 2210, the multi-stage pre-cooling chamber 2210 can be divided into a low-stage condensing chamber 2211 and a high-stage condensing chamber 2212, and the steam inlet 2213 of the pre-cooling concentration tower 220 is connected to the low-stage condensing chamber 2211, and the low-stage condensing chamber 2211 is connected to the high-stage condensing chamber 2212 through the gas passage 2243. The condensation part of the low-stage refrigerant pipe 2120 is arranged in the low-stage condensing chamber 2211, and the cooling part of the high-stage refrigerant pipe 2140 is arranged in the low-stage condensing chamber 2211. The condensation section is located in the high-stage condensation chamber 2212, allowing the oil-containing vapor entering through the vapor inlet 2213 of the pre-cooling concentration tower 220 to flow sequentially through the low-stage condensation chamber 2211 and the high-stage condensation chamber 2212 to achieve multi-stage condensation. The condensation point of the water vapor in the oil-containing vapor is higher than the condensation point of the oil in the oil-containing vapor, so that the water vapor in the oil-containing vapor is gradually condensed into condensed water in the low-stage condensation chamber 2211 and the high-stage condensation chamber 2212, thereby increasing the oil concentration in the oil-containing vapor. Compared with the prior art filtering treatment device for oil-containing distilled water, the oil-containing vapor staged treatment device 200 of the present disclosure only needs to condense the water vapor in the oil-containing vapor, avoiding the additional energy consumption caused by condensing the entire oil-containing vapor, thereby reducing usage costs.

[0068] 2) Because high-level condensation chamber 2212 is connected to the lumen of oil-gas conduit 230 via air inlet 2310, and the exhaust end of oil-gas conduit 230 is connected to the air inlet of combustion de-oiler 240, the oil-containing vapor, after condensation and concentration, can enter combustion de-oiler 240 for combustion and removal. Compared to prior art filtration treatment devices for oil-containing distilled water, the disclosed oil-containing vapor classification treatment device 200 burns the oil in the concentrated oil-containing vapor, without generating additional oil-containing filter material, making it more environmentally friendly.

[0069] 3) Because the low-level condensation chamber 2211 and the high-level condensation chamber 2212 are respectively connected to the condensate storage chamber 2220 through the liquid holes 2231 of the liquid-passing partition 2230, the condensate will be gathered on the liquid-passing partition 2230 under the action of gravity to form a liquid seal effect, and the oil-containing vapor will not enter the condensate storage chamber 2220 through the liquid holes 2231 of the liquid-passing partition 2230 and leak out. At the same time, the condensate can be collected into the condensate storage chamber 2220 through the liquid holes 2231 of the liquid-passing partition 2230, so that the condensate can be conveniently reused.

[0070] The above-described embodiments merely represent several implementation methods of the present disclosure. 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 of ordinary skill in the art could make various modifications and improvements without departing from the scope of the present disclosure, all of which fall within the scope of protection of the present disclosure. Therefore, the scope of protection of the present patent shall be determined by the appended claims.

Claims

1. A device (200) for treating oil-containing vapor by classification, include: A refrigeration component (210), the refrigeration component (210) comprising a refrigerator (2110), a low-level refrigerant pipe (2120) and a high-level refrigerant pipe (2140), a refrigeration cavity of the refrigerator (2110) being respectively connected to the low-level refrigerant pipe (2120) and the high-level refrigerant pipe (2140), and the refrigerator (2110) being used to cool the refrigerant; Characterized in that the oil-containing vapor classification treatment device (200) further comprises a precooling concentration tower (220), an oil and gas conduit (230) and a combustion deoiler (240); A multi-stage precooling chamber (2210) and a condensed water storage chamber (2220) are sequentially arranged in the precooling concentration tower (220) from top to bottom, and a liquid-passing baffle (2230) is arranged between the multi-stage precooling chamber (2210) and the condensed water storage chamber (2220); a vertical partition (2240) is arranged in the multi-stage precooling chamber (2210), and two ends of the vertical partition (2240) are respectively extended and connected to the top of the multi-stage precooling chamber (2210) and the liquid-passing baffle (2230) to separate the multi-stage precooling chamber (2210) into a low-stage condensation chamber (2211) and a high-stage condensation chamber (2212); the high-stage condensation chamber (2212) is arranged on the inner side of the low-stage condensation chamber (2211), and the vertical partition (2240) is arranged on the inner side of the low-stage condensation chamber (2211). An air passage (2243) is provided on the cylinder wall, and the low-level condensation chamber (2211) is connected to the high-level condensation chamber (2212) through the air passage (2243); the vapor inlet (2213) of the pre-cooling concentration tower (220) is connected to the low-level condensation chamber (2211), and the low-level condensation chamber (2211) and the high-level condensation chamber (2212) are both connected to the condensed water storage chamber (2220) through the corresponding liquid holes (2231) of the liquid-passing baffle (2230); the condensation part of the low-level refrigerant pipe (2120) is arranged in the low-level condensation chamber (2211), and the condensation part of the high-level refrigerant pipe (2140) is arranged in the high-level condensation chamber (2212) to condense and concentrate the oil-containing vapor; The oil and gas conduit (230) is arranged at the top of the pre-cooling concentration tower (220); the air inlet end of the oil and gas conduit (230) is connected to the liquid-passing baffle (2230) through the high-level condensation chamber (2212); an air inlet (2310) is provided on the peripheral wall of the air inlet end of the oil and gas conduit (230), and the high-level condensation chamber (2212) is connected to the lumen of the oil and gas conduit (230) through the air inlet (2310); the exhaust end of the oil and gas conduit (230) is connected to the air inlet end of the combustion de-oiler (240), and the combustion de-oiler (240) is used for burning and concentrating the oil-containing vapor.

2. The oil-containing vapor classification treatment device (200) according to claim 1, It is characterized in that The vertical partition tube (2240) comprises a partition inner tube (2242) and a partition outer tube (2241), wherein the partition outer tube (2241) is sleeved outside the partition inner tube (2242); an intermediate condensation chamber (224b) is formed between the partition outer tube (2241) and the partition inner tube (2242), and the intermediate condensation chamber (224b) is connected to the condensed water storage chamber (2220) through the liquid hole (2231) of the liquid partition plate (2230); a first air port (224a) is provided at the top end of the tube wall of the partition outer tube (2241), and a second air port (224c) is provided at the bottom end of the tube wall of the partition inner tube (2242); the first air port (224a), the intermediate condensation chamber (224b) and the second air port (224c) are connected in sequence to form the air passage (2243); The refrigeration component (210) also includes an intermediate refrigerant pipe (2130), wherein the intermediate refrigerant pipe (2130) is connected to the refrigeration cavity of the refrigerator (2110), and the condensation part of the intermediate refrigerant pipe (2130) is arranged in the intermediate condensation chamber (224b).

3. The oil-containing vapor classification treatment device (200) according to claim 2, It is characterized in that The condensation section of the low-level refrigerant pipe (2120) is divided into a low-level liquid delivery section (212a), a low-level annular heat exchange section (212b) and a low-level exhaust section (212c) in sequence along the flow direction of the refrigerant, the low-level annular heat exchange section (212b) forming the condensation section of the low-level refrigerant pipe (2120), and the low-level annular heat exchange section (212b) is sleeved outside the partition outer cylinder (2241); and / or, The condensation section of the intermediate refrigerant pipe (2130) is divided into an intermediate liquid delivery section (213a), an intermediate annular heat exchange section (213b) and an intermediate exhaust section (213c) in sequence along the flow direction of the refrigerant, the intermediate annular heat exchange section (213b) forming the condensation section of the intermediate refrigerant pipe (2130), and the intermediate annular heat exchange section (213b) is sleeved outside the partition inner tube (2242); and / or, The condensation section of the high-level refrigerant pipe (2140) is divided into a high-level liquid delivery section (214a), a high-level annular heat exchange section (214b) and a high-level exhaust section (214c) in sequence along the flow direction of the refrigerant. The high-level annular heat exchange section (214b) forms the condensation section of the high-level refrigerant pipe (2140). The high-level annular heat exchange section (214b) is sleeved on the outer periphery of the air inlet end of the oil and gas conduit (230).

4. The oil-containing vapor classification treatment device (200) according to claim 1, It is characterized in that The combustion de-oiler (240) comprises a combustion chamber (2410), a plurality of pointed electrodes (2420), a plurality of vertical baffles (2430) and a power source (2440), wherein each of the vertical baffles (2430) is arranged in the inner cavity of the combustion chamber (2410), and the exhaust end of the oil and gas conduit (230) is connected to the intake end of the combustion chamber (2410); the plurality of vertical baffles (2430) are arranged side by side and spaced from the intake end of the combustion chamber (2410) to the outlet end of the combustion chamber (2410) to separate the inner cavity of the combustion chamber (2410) into two parts. The invention comprises a plurality of combustion chambers (2411); each of the pointed electrodes (2420) is arranged in each of the combustion chambers (2411) in correspondence with each other, and is electrically connected to the power source (2440) respectively; each of the vertical partitions (2430) is provided with a connecting port (2431), and two adjacent combustion chambers (2411) are connected through the corresponding connecting port (2431) to form a flow-through combustion passage (343a); the air inlet end of the combustion chamber (2410) is connected to the air outlet end of the combustion chamber (2410) through the flow-through combustion passage (343a).

5. The oil-containing vapor classification treatment device (200) according to claim 4, It is characterized in that The plurality of pointed electrodes (2420) are divided into a plurality of first pointed electrodes (2421) and a plurality of second pointed electrodes (2422); the plurality of combustion chambers (2411) are divided into a plurality of first combustion chambers (241a) and a plurality of second combustion chambers (241b), and the plurality of first combustion chambers (241a) and the plurality of second combustion chambers (241b) are alternately arranged in sequence from the air inlet end of the combustion chamber (2410) to the air outlet end of the combustion chamber (2410); each of the first pointed electrodes (2421) is vertically arranged one by one in the corresponding first combustion chamber (241a), and each of the second pointed electrodes (2422) is vertically arranged one by one in the corresponding second combustion chamber (241b); each of the A first discharge tip (242d) is protrudingly provided at the bottom end of the first tip electrode (2421), and a second discharge tip (242e) is protrudingly provided at the top end of each of the first tip electrodes (2421); between each of the second tip electrodes (2422) and two adjacent first tip electrodes (2421), each of the second discharge tips (242e) is arranged opposite to the top end of the first tip electrode (2421) in front through the corresponding connecting opening (2431), and the bottom end of the second tip electrode (2422) is arranged opposite to the first discharge tip (242d) of the first tip electrode (2421) in the rear through the corresponding connecting opening (2431), so as to form the over-current combustion passage (343a).

6. The oil-containing vapor classification treatment device (200) according to claim 4, It is characterized in that Each of the tip electrodes (2420) comprises a heat-resistant insulating body (242a), a positive tip electrode piece (242b) and a negative tip electrode piece (242c); the positive tip electrode piece (242b) and the negative tip electrode piece (242c) are embedded in the heat-resistant insulating body (242a) in parallel; the positive tip electrode piece (242b) is electrically connected to the positive electrode of the power source (2440), the negative tip electrode piece (242c) is electrically connected to the negative electrode of the power source (2440), and the discharge tip of the positive tip electrode piece (242b) and the discharge tip of the negative tip electrode piece (242c) are both protruding from the same end of the heat-resistant insulating body (242a).

7. The oil-containing vapor classification treatment device (200) according to claim 4, It is characterized in that The combustion deoiler (240) further comprises an oil residue collecting tank (2450), and each combustion chamber (2411) is provided with a slag discharge port (241c) at the bottom, and each slag discharge port (241c) is located above the notch of the oil residue collecting tank (2450); each slag discharge port (241c) is separated from the notch of the oil residue collecting tank (2450) by an opening and closing structure (2460); when the opening and closing structure (2460) is opened, each combustion chamber (2411) is connected to the notch of the oil residue collecting tank (2450) through the corresponding slag discharge port (241c).

8. The oil-containing vapor classification treatment device (200) according to claim 7, It is characterized in that An opening and closing area is provided between each of the slag discharge ports (241c) and the slot opening of the oil residue collecting tank (2450), and the opening and closing structure (2460) includes a first material collecting push plate (2461) and a second material collecting push plate (2462); the first material collecting push plate (2461) and the second material collecting push plate (2462) are both horizontally arranged in the opening and closing area, and are respectively slidably connected to the slot wall of the oil residue collecting tank (2450); the first material collecting push plate (2461) and the second material collecting push plate (2462) are arranged opposite to each other, and can slide relative to each other to close or open each of the slag discharge ports (241c).

9. The oil-containing vapor classification treatment device (200) according to any one of claims 1 to 8, It is characterized in that A booster pump (250) is also provided between the oil and gas conduit (230) and the combustion deoiler (240); the gas outlet end of the oil and gas conduit (230) is connected to the gas inlet end of the booster pump (250); and the gas outlet end of the booster pump (250) is connected to the gas inlet end of the combustion deoiler (240).

10. A condensation recovery device for oily waste gas (10), It is characterized in that It comprises an evaporation tower (100), a condensed water tank (300), a condensed water recycling pipe (400), and an oil-containing vapor classification treatment device (200) according to any one of claims 4 to 8; The steam outlet (110) of the evaporation tower (100) is connected to the steam inlet (2213) of the pre-cooling concentration tower (220), the gas outlet end of the combustion chamber (2410) is connected to the gas inlet end of the condensed water tank (300), and the liquid outlet end of the condensed water tank (300) and the condensed water storage chamber (2220) are respectively connected to the condensed water return pipe (400).

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