A fume purification and recovery device

Abstract

The utility model relates to an oil fume purification and recovery device, which belongs to the technical field of compressors and includes an oil tank, an oil mist collector, an exhaust fan, an oil vapor separator, and an oil pump. The utility model is used to purify the smoke thoroughly. The oil mist collector and the oil vapor separator purification and recovery device are respectively designed to achieve multi-level purification. The design is reasonable and environmental protection is emphasized. There is no oil vapor overflow. All pipelines are connected in series to form a closed cycle, which reduces oil consumption and waste. The condensed oil droplets are captured and enter the oil pump to lubricate and cool the bearing bush, thereby achieving secondary utilization. The structure is simple, easy to make, low cost, and good versatility.

Description

Technical Field

[0001] The utility model relates to an oil fume purification and recovery device, belonging to the technical field of compressors. Background Art

[0002] Centrifugal compressors are widely used in industrial and mining enterprises. The compressor is a driven fluid machine that can lift low-pressure gas into high-pressure gas. It is the heart of the refrigeration system. It sucks low-temperature and low-pressure refrigerant gas from the suction pipe, compresses it by driving the piston through the motor, and discharges high-temperature and high-pressure refrigerant gas to the exhaust pipe, providing power for the refrigeration cycle, thereby realizing the refrigeration cycle of compression → condensation (heat release) → expansion → evaporation (heat absorption).

[0003] The compressor generates a lot of heat during the gas compression process, so the bearings of the compressor need to be continuously sprayed with lubricating oil to keep the bearings cool and lubricated to prevent them from burning out. In order to spray lubricating oil on the bearings in an uninterrupted cycle, a separate oil station is generally required. The oil station mainly includes an oil tank, an oil pump, etc. The lubricating oil generates high pressure through the oil pump, and then forms oil mist to spray, cool and lubricate the bearings. The temperature of the lubricating oil after spraying increases, and it returns to the oil tank with a large amount of smoke. The traditional practice is to set an exhaust hole in the oil tank, and the high-temperature oil smoke is discharged to the sky from the exhaust hole.

[0004] However, during the on-site fume emission process, part of the fume gradually condenses into small oil droplets after passing through a long section of the fume emission pipeline. Therefore, after being discharged from the pipeline, the ground under the emission pipeline and the building will be covered with oil stains. After a long time, the oil stains are extremely difficult to clean, causing environmental pollution. It will also cause the lubricating oil to continue to spill and lose, and the oil level in the oil tank will continue to decrease, affecting the stable operation of the compressor. Utility Model Content

[0005] The utility model aims to solve the technical problem of serious loss of lubricating oil and environmental pollution in the prior art, and provides an oil fume purification and recovery device.

[0006] The utility model is realized by the following technical solutions:

[0007] That is, an oil fume purification and recovery device, including an oil tank, an oil mist collector, an exhaust fan, an oil vapor separator, and an oil pump;

[0008] The oil mist collector is connected to the exhaust port at the top of the oil tank, the top of the oil mist collector is connected to the top of the oil vapor separator through a pipeline, the inlet end of the suction fan is connected to the outlet end of the top of the oil mist collector through a pipeline, the outlet end of the suction fan is connected to the top of the oil vapor separator through a pipeline, the oil pump is connected to the bottom of the oil tank, and the bottom of the oil vapor separator is connected to the inlet end of the oil pump through a pipeline.

[0009] By using the utility model, the smoke is thoroughly purified. An oil mist collector and an oil vapor separator are respectively designed for purification and recovery, so that multi-level purification is realized. The design is reasonable and environmental protection is emphasized. There is no oil vapor overflow. All pipelines are connected in series to form a closed cycle, which reduces oil consumption and waste. The condensed oil droplets are captured and lubricated and cooled by the oil pump for bearing bushing, so that secondary utilization is realized. The utility model has a simple structure, is easy to manufacture, has a low cost and good versatility.

[0010] Further preferably, a filter element is provided inside the oil mist collector, and the filter element adopts three-layer filtration to achieve three-stage capture of oil mist, thereby improving the capture effect.

[0011] Further preferably, the oil mist collector is provided with an inspection door, and the filter element is made of stainless steel metal sintered wire mesh, which is light, clean, easy to flush and convenient to replace.

[0012] Further preferably, a water-cooling jacket, a baffle guide plate and an air collecting pipe are sequentially arranged inside the oil-gas separator from top to bottom. The flue gas enters from the upper part of the oil-gas separator, slowly moves along the baffle guide plate to the lower part of the air collecting pipe, and is discharged from the air collecting pipe. Cooling circulating water is continuously introduced into the water-cooling jacket to cool the flue gas and promote the condensation of the flue gas into oil droplets.

[0013] Further preferably, an oil collector is provided at the bottom of the oil-gas separator, the oil collector is located below the gas collecting pipe, the bottom of the oil collector is connected to the oil pump suction port, and the cooled and collected lubricating oil is sent to the compressor bearing again through the oil pump.

[0014] Further preferably, a pressure display is installed at the inlet of the exhaust fan to detect the inlet pressure and further determine the degree of clogging of the filter element.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] By using the utility model, the smoke is thoroughly purified. An oil mist collector and an oil vapor separator are respectively designed for purification and recovery, so that multi-level purification is realized. The design is reasonable and environmental protection is emphasized. There is no oil vapor overflow. All pipelines are connected in series to form a closed cycle, which reduces oil consumption and waste. The condensed oil droplets are captured and lubricated and cooled by the oil pump for bearing bushing, so that secondary utilization is realized. The utility model has a simple structure, is easy to manufacture, has a low cost and good versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of a specific implementation method of the utility model.

[0019] In the figure: 1. oil tank; 2. oil mist collector; 3. exhaust fan; 4. oil-gas separator; 5. oil pump; 6. pressure display; 201. inspection door; 202. filter element; 401. water-cooling jacket; 402; deflector guide plate; 403. air collecting pipe; 404. oil collector. DETAILED DESCRIPTION

[0020] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0021] like Figure 1 The oil fume purification and recovery device shown in the figure comprises an oil tank 1, an oil mist collector 2, an exhaust fan 3, an oil vapor separator 4, and an oil pump 5;

[0022] The oil mist collector 2 is connected to the exhaust port at the top of the oil tank 1, the top of the oil mist collector 2 is connected to the top of the oil vapor separator 4 through a pipeline, the inlet end of the suction fan 3 is connected to the outlet end of the top of the oil mist collector 2 through a pipeline, the outlet end of the suction fan 3 is connected to the top of the oil vapor separator 4 through a pipeline, the oil pump 5 is connected to the bottom end of the oil tank 1, and the bottom end of the oil vapor separator 4 is connected to the inlet end of the oil pump 5 through a pipeline.

[0023] By using the utility model, the smoke is thoroughly purified. An oil mist collector and an oil vapor separator are respectively designed for purification and recovery, so that multi-level purification is realized. The design is reasonable and environmental protection is emphasized. There is no oil vapor overflow. All pipelines are connected in series to form a closed cycle, which reduces oil consumption and waste. The condensed oil droplets are captured and lubricated and cooled by the oil pump for bearing bushing, so that secondary utilization is realized. The utility model has a simple structure, is easy to manufacture, has a low cost and good versatility.

[0024] Further preferably, a filter element 202 is provided inside the oil mist collector 2, and the filter element 202 adopts three-layer filtration to achieve three-stage capture of oil mist and improve the capture effect. An inspection door 201 is provided on the oil mist collector 2, and the filter element 202 adopts a stainless steel metal sintered wire mesh, which is light, clean, easy to rinse and easy to replace.

[0025] Among them, the inside of the oil-gas separator 4 is provided with a water-cooling jacket 401, a deflection guide plate 402, and an air collecting pipe 403 from top to bottom. The flue gas enters from the upper part of the oil-gas separator 4, slowly moves along the deflection guide plate 402 to the lower part of the air collecting pipe 403, and is discharged from the air collecting pipe 403. Cooling circulating water is continuously introduced into the water-cooling jacket 401 to cool down the flue gas and promote the condensation of the flue gas into oil droplets.

[0026] An oil collector 404 is provided at the bottom of the oil-gas separator 4. The oil collector 404 is located below the gas collecting pipe 403. The bottom of the oil collector 404 is connected to the suction port of the oil pump 5. The cooled and collected lubricating oil is sent to the compressor bearing again through the oil pump 5.

[0027] A pressure display instrument 6 is installed at the inlet of the exhaust fan 3 to detect the inlet pressure and further determine the degree of blockage of the filter element 202.

[0028] Working principle:

[0029] The oil mist collector is equipped with a three-stage metal wire mesh filter element to capture droplets from large to small. The exhaust fan is installed on the top of the oil tank without the need to make a separate support. The exhaust fan inlet is connected to the top of the oil mist collector, and the exhaust fan outlet is connected to the oil vapor separator. A conical oil collector is provided at the bottom of the oil vapor separator. The oil mist is sent into the oil vapor separator by the exhaust fan. The separated lubricating oil enters the lubricating oil pump inlet through the bottom conical oil collector and is sent to the compressor through the lubricating oil pump to achieve lubrication and cooling of the bearing. The oil mist that is not completely separated is discharged from the top of the oil vapor separator into the exhaust fan inlet, and is sent to the oil vapor separator again through the exhaust fan for secondary oil fume purification and separation. This cycle is repeated to ensure the separation effect.

[0030] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0031] The terms "upper", "lower", "outer side", "inner side", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish the relative relationship in position if they exist, and do not need to be qualitative. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0032] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fume purification and recovery device, characterized in that: It comprises an oil tank (1), an oil mist collector (2), a suction fan (3), an oil vapor separator (4), and an oil pump (5); The oil mist collector (2) is connected to the exhaust port at the top of the oil tank (1), the top of the oil mist collector (2) is connected to the top of the oil vapor separator (4) via a pipeline, the inlet end of the suction fan (3) is connected to the outlet end of the top of the oil mist collector (2) via a pipeline, the outlet end of the suction fan (3) is connected to the top of the oil vapor separator (4) via a pipeline, the oil pump (5) is connected to the bottom of the oil tank (1), and the bottom of the oil vapor separator (4) is connected to the inlet end of the oil pump (5) via a pipeline.

2. The oil fume purification and recovery device according to claim 1, characterized in that: A filter element (202) is provided inside the oil mist collector (2), and the filter element (202) adopts three-layer filtering.

3. The oil fume purification and recovery device according to claim 2, characterized in that: The oil mist collector (2) is provided with an inspection door (201), and the filter element (202) is made of a stainless steel sintered wire mesh.

4. The oil fume purification and recovery device according to claim 1, characterized in that: The oil-gas separator (4) is provided with a water-cooling jacket (401), a baffle guide plate (402), and a gas collecting pipe (403) in sequence from top to bottom.

5. The oil fume purification and recovery device according to claim 4, characterized in that: An oil collector (404) is provided at the bottom of the oil-gas separator (4). The oil collector (404) is located below the gas collecting pipe (403). The bottom of the oil collector (404) is connected to the suction port of the oil pump (5).

6. The oil fume purification and recovery device according to claim 4, characterized in that: A pressure display instrument (6) is installed at the inlet of the suction fan (3).

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