Oil-gas separation device

Abstract

The invention discloses an oil-gas separation device, which comprises: an oil-gas separation tank, which comprises a tank body and a primary filter cartridge arranged in the tank body, the side wall of the tank body is provided with a gas inlet, an oil inlet and an oil outlet, and the upper end of the tank body is provided with a gas outlet; the oil separation seat is fixed at the upper end of the cylinder body, a mixed gas channel and a purified gas channel are arranged in the oil separation seat, the mixed gas channel is communicated to the gas outlet, and the purified gas channel is connected with an exhaust pipe; and the refined filtration assembly is detachably installed on the oil separation base, the gas inlet end of the refined filtration assembly communicates with the mixed gas channel, and the gas outlet end of the refined filtration assembly communicates with the purified gas channel. According to the oil-gas separation device provided by the invention, the fine filtration assembly is convenient to mount and dismount, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of compressors, and in particular to an oil-gas separation device. Background Art

[0002] When the air compressor is working, the air compressed by the compressor is in a high temperature and high pressure state, which will cause part of the lubricating oil inside the machine body to vaporize into oil vapor and small oil droplets, which will enter the exhaust pipe along with the compressed air. If the oil droplets and oil vapor enter the cooler of the cooling gas, the cooling effect of the cooler will be reduced. Therefore, an oil separator must be installed between the compressor and the cooler to separate the lubricating oil from the refrigeration steam.

[0003] The oil-gas separator in the prior art includes an oil-gas separation tank, a primary filter cartridge and a filter element arranged in the oil-gas separation tank. When the filter element needs to be replaced, the cover plate on the upper end of the oil-gas separation tank needs to be removed, which makes replacement and disassembly inconvenient. Summary of the invention

[0004] Based on the above problems, the purpose of the present invention is to provide an oil-gas separation device, in which the fine filter component adopts an external structure and is easy to install and disassemble.

[0005] In order to overcome the deficiencies of the prior art, the technical solution provided by the present invention is:

[0006] Oil-gas separation device, comprising:

[0007] An oil-gas separation tank, comprising a tank body and a primary filter cartridge arranged in the tank body, the side wall of the tank body is provided with an air inlet, an oil inlet and an oil outlet, and the upper end of the tank body is provided with an air outlet;

[0008] An oil separator seat, which is fixed to the upper end of the tank body, wherein a mixed gas channel and a purified gas channel are provided in the oil separator seat, wherein the mixed gas channel is connected to the gas outlet, and the purified gas channel is connected to an exhaust pipe;

[0009] A fine filter assembly is detachably mounted on the oil separator seat, wherein an air inlet end of the fine filter assembly is connected to the mixed gas channel and an air outlet end thereof is connected to the purified gas channel.

[0010] In one embodiment, the fine filtration assembly includes an outer shell and a filter element component disposed in the outer shell, the outer shell includes a cylindrical portion with an opening at one end and a mounting end plate disposed at the opening position, the lower end of the filter element component abuts against the mounting end plate and an elastic support member is provided between the upper end and the cylindrical portion, and a plurality of through holes are provided on the mounting end plate.

[0011] In one embodiment, the filter element component includes an upper end cover, a lower end cover, and a filter element body fixed between the upper end cover and the lower end cover.

[0012] In one of the embodiments, a filter element connecting seat is provided on the oil separator seat, and a mounting hole for the filter element connecting seat to pass through is provided in the middle of the mounting end plate and is threadedly connected to the filter element mounting seat.

[0013] In one of the embodiments, an air outlet pipe is further provided inside the filter element connecting seat and extends through the lower end cover to the middle part of the filter element component. The air outlet pipe connects the purified air channel with the inside of the filter element body. The gap between the filter element connecting seat and the air outlet pipe is matched to form an oil return channel. The oil separator seat is provided with an oil return port connected to the oil return channel.

[0014] In one embodiment, the tank body includes a cylinder, an upper cover arranged at the upper end of the cylinder and an elliptical head arranged at the lower end of the cylinder, a supporting foot assembly is provided at the lower part of the cylinder, the oil separator seat is fixed at the upper end of the upper cover, the primary filter cartridge is installed at the lower end of the upper cover, the elliptical head is connected to a sewage pipe, the air inlet, oil inlet and oil discharge port are arranged on the cylinder, and the air outlet is arranged on the upper cover.

[0015] In one of the embodiments, an oil sight glass seat for mounting an oil sight glass is provided on the side wall of the cylinder.

[0016] In one of the embodiments, a safety valve is installed on the upper cover.

[0017] In one of the embodiments, the oil discharge port is connected to an oil outlet pipe extending into the elliptical head.

[0018] In one of the embodiments, the air inlet is connected to an air inlet pipe.

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] 1. The fine filter assembly is installed externally, which is convenient for installation and disassembly, replacement and maintenance, and improves work efficiency;

[0021] 2. The internal structure of the oil-gas separation tank is simpler, and no separate structure and space for fixing the fine filter assembly is required. In addition, there is no need to set a detachable cover on the oil-gas separation tank. The upper cover is welded to the cylinder to fix the structure, which reduces leakage points;

[0022] 3. The safety valve is installed on the upper cover, and there is no need to set a safety valve mounting seat on the cylinder, which simplifies the structure of the oil-gas separation tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0024] Figure 1 This is one of the structural schematic diagrams of an oil-gas separation device embodiment of the present invention;

[0025] Figure 2 This is a second structural diagram of an embodiment of the present invention;

[0026] Figure 3 This is one of the structural schematic diagrams of the oil-gas separation tank in the embodiment of the present invention;

[0027] Figure 4 This is the second structural schematic diagram of the oil-gas separation tank in the embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the structure of a fine filter assembly in an embodiment of the present invention;

[0029] Figure 6 This is one of the structural schematic diagrams of the fine filter assembly and the oil separator seat in the embodiment of the present invention;

[0030] Figure 7 This is a second structural schematic diagram of the fine filter assembly and the oil separator seat in the embodiment of the present invention;

[0031] in:

[0032] 1. Oil-gas separation tank; 1-1. Tank body; 1-1a. Cylinder body; 1-1b. Upper cover; 1-1c. Elliptical head; 1-2. Primary filter cartridge; 1-3. Support legs; 1-4. Air inlet; 1-5. Air outlet; 1-6. Oil inlet; 1-7. Oil outlet; 1-8. Oil outlet pipe; 1-9. Sewage pipe; 1-10. Oil sight glass seat;

[0033] 2. Oil separator seat; 2-1. Mixed gas channel; 2-2. Purified gas channel; 2-3. Filter element connection seat; 2-4. Air outlet pipe; 2-5. Oil return channel; 2-6. Oil return port;

[0034] 3. Fine filter assembly; 3-1. Housing; 3-1a. Cylindrical body; 3-1b. Mounting end plate; 3-1b1. Perforation; 3-2. Filter element component; 3-2a. Upper end cover; 3-2b. Lower end cover; 3-2c. Filter element body; 3-3. Elastic support member;

[0035] 4. Intake pipe;

[0036] 5. Exhaust pipe;

[0037] 6. Hose;

[0038] 7. Gas supply pipe support;

[0039] 8. Ball supply valve;

[0040] 9. Quick connector;

[0041] 10. Blowdown ball valve;

[0042] 11. Safety valve. DETAILED DESCRIPTION

[0043] The above scheme is further described below in conjunction with specific examples. It should be understood that these examples are used to illustrate the present invention and are not limited to the scope of the present invention. The implementation conditions adopted in the examples can be further adjusted according to the conditions of the specific manufacturer, and the unspecified implementation conditions are usually the conditions in conventional experiments.

[0044] See also Figure 1 and Figure 2 , which is a structural schematic diagram of the present invention, provides an oil-gas separation device, including an oil-gas separation tank 1, an oil separation seat 2 and a fine filter component 3.

[0045] like Figure 3 and Figure 4 As shown, the oil-gas separation tank 1 includes a tank body 1-1 and a primary filter cartridge 1-2 arranged in the tank body 1-1, the tank body 1-1 includes a cylinder body 1-1a, an upper cover 1-1b arranged at the upper end of the cylinder body 1-1a and an elliptical head 1-1c arranged at the lower end of the cylinder body 1-1a, the cylinder body 1-1a is cylindrical, the upper cover 1-1b and the elliptical head 1-1c are respectively welded and fixed to the cylinder body 1-1a, the primary filter cartridge 1-2 is welded and fixed to the lower end of the upper cover 1-1b, and the oil separator seat 2 is fixed to the upper end of the upper cover 1-1b.

[0046] An air inlet 1-4, an oil inlet 1-6, and an oil discharge port 1-7 are provided on the side wall of the cylinder 1-1a, wherein the air inlet 1-4 is connected to the air inlet pipe 4, which is the exhaust pipe assembly of the compressor unit, and is used to introduce the oil-gas mixture discharged from the compressor into the oil-gas separation tank 1. The oil inlet 1-6 is used to introduce oil into the oil-gas separation tank 1 according to the height of the oil in the oil-gas separation tank, and control the height of the oil within a safe range. The oil discharge port 1-7 is connected to the oil return pipe to reuse the oil. In order to facilitate the discharge of the oil, the oil discharge port 1-7 is connected to the oil outlet pipe 1-8 extending into the elliptical head 1-1c, and the oil discharge port 1-7 can be connected to the oil return pipe to reuse the oil.

[0047] A support foot assembly is provided at the lower part of the cylinder 1-1a to support the entire oil-gas separation tank 1. The support foot assembly includes two support feet 1-3 arranged relatively to each other. An air outlet 1-5 is provided on the upper cover 1-1b to pass the mixed gas separated by the primary filter cylinder 1-2 into the fine filter assembly 3 for filtration. A sewage pipe 1-9 is connected to the bottom of the elliptical head 1-1c so that the oil-gas separation tank 1 can be emptied when the lubricating oil is replaced. The outlet of the sewage pipe 1-9 is fixed on the support foot 1-3. The sewage pipe 1-9 can be connected to the hose 6. At the same time, a sewage ball valve 10 is provided on the hose 6 to control the opening and closing of the sewage pipe 1-9.

[0048] In order to facilitate observation of the oil condition in the oil-gas separation tank 1, an oil sight glass seat 1-10 for mounting an oil sight glass is provided on the side wall of the cylinder 1-1a.

[0049] In order to improve the safety performance of the oil-gas separation device, a safety valve 11 is installed on the upper cover 1 - 1 b.

[0050] like Figure 6 and Figure 7 As shown, a mixed gas channel 2-1 and a purified gas channel 2-2 are provided in the oil separator seat 2, wherein the mixed gas channel 2-1 is connected to the air outlet 1-5, and the purified gas channel 2-2 is connected to the exhaust pipe 5 via a minimum pressure valve. The mixed gas after oil and gas separation in the oil-gas separation tank 1 through the primary filter cartridge 1-2 enters the mixed gas channel 2-1 of the oil separator seat 2 through the air outlet 1-5, and then enters the fine filter assembly 3 for further oil and gas separation. The purified gas after oil and gas separation in the fine filter assembly 3 passes through the purified gas channel 2-2 and is discharged through the exhaust pipe 5. The lower end of the exhaust pipe 5 is connected to an air supply pipe support 7 via a flange, and the air supply pipe support 7 is connected to the air supply pipe of the cooler via a quick connector 9. A supply ball valve 8 is provided on the air supply pipe support 7 to control the opening and closing of the air supply pipe.

[0051] like Figures 5 to 7As shown, the fine filter assembly 3 can be detachably mounted on the oil separator seat 2, and the air inlet end of the fine filter assembly 3 is connected to the mixed gas channel 2-1 and the air outlet end is connected to the purified gas channel 2-2. Specifically, the fine filter assembly 3 includes a housing 3-1 and a filter element component 3-2 disposed in the housing 3-1, the housing 3-1 includes a cylindrical portion 3-1a with an opening at one end and a mounting end plate 3-1b disposed at the opening position, the lower end of the filter element component 3-2 abuts against the mounting end plate 3-1b and an elastic support member 3-3 is disposed between the upper end and the cylindrical portion 3-1a, preferably, the elastic support member 3-3 is a spring, and the elastic support member 3-3 is disposed to stably support the filter element component 3-2 in the housing 3-1. A plurality of through holes 3-1b1 are provided on the mounting end plate. When the fine filter assembly is mounted on the oil separator seat 2, the plurality of through holes 3-1b1 connect the mixed gas channel 2-1 with the interior of the housing 3-1 to allow the mixed gas to pass into the fine filter assembly 3, and also facilitate the discharge of the oil separated by the filter element component 3-2 and flow into the oil-gas separation tank 1.

[0052] Among them, the filter element component 3-2 includes an upper end cover 3-2a, a lower end cover 3-2b and a filter element body 3-2c fixed between the upper end cover 3-2a and the lower end cover 3-2b, the upper end cover 3-2a abuts against the elastic support member 3-3, and the lower end cover 3-2b extends downward to abut on the mounting end plate 3-1b.

[0053] In order to facilitate the installation of the fine filter assembly 3, a filter element connecting seat 2-3 is provided on the oil separator seat 2, and a mounting hole for the filter element connecting seat 2-3 to pass through is provided in the middle of the mounting end plate 3-1b and is threadedly connected to the filter element mounting seat 2-3. Specifically, a flange structure and an internal thread structure are provided at the mounting hole position of the mounting end plate 3-1b, and an external thread structure is provided on the filter element connecting seat 2-3.

[0054] In order to facilitate the discharge of purified gas, an outlet pipe 2-4 is provided inside the filter element connecting seat 2-3, extending through the lower end cover 3-2b to the middle part of the filter element component 3-2. The outlet pipe 2-4 connects the purified gas channel 2-2 and the inside of the filter element body 3-2c. The gap between the filter element connecting seat 2-3 and the outlet pipe 2-4 is matched to form an oil return channel 2-5. At the same time, an oil return port 2-6 connected to the oil return channel 2-5 is provided on the oil separator seat 2. The oil return port 2-6 is connected to the air compressor through an oil return pipeline. The oil collected at the bottom of the lower end cover 3-2b after being filtered by the filter element component 3-2 is discharged through the oil return channel 2-5 and then through the oil return port 2-6 for reuse.

[0055] The working principle of the present invention is:

[0056] The mixed gas of air and oil after being compressed by the compressor enters the oil-gas separation tank 1 through the intake pipe 4, and the mixed gas first enters the primary filter cartridge 1-2, and after colliding with the inner wall of the primary filter cartridge 1-2, large particles of liquid lubricating oil are separated, and the unseparated lubricating oil and compressed air enter the mixed gas channel 2-1 of the oil separator seat 2 through the outlet port 1-5, and then enter the outer shell 3-1 of the fine filter component 3 through multiple perforations 3-1b1 on the mounting end plate 3-1b, and the mixed gas is separated from the oil through the filter element body 3-2c, and the oil outside the filter element body 3-2c flows back to the oil-gas separation tank 1 through multiple perforations 3-1b1, and a small amount of oil in the filter element body 3-2c gathers at the bottom of the lower end cover 3-2b, and returns oil through the return oil channel 2-5 between the filter element connecting seat 2-3 and the outlet pipe 2-4, and the compressed air with oil-gas separation is discharged to the purified gas channel 2-2 of the oil separator seat 1 through the outlet pipe 2-4, and is discharged through the exhaust pipe 5.

[0057] In summary, the oil-gas separation device facilitates the installation and disassembly of the fine filter component, is easy to replace and maintain, improves work efficiency, and simplifies the structure of the oil-gas separation tank.

[0058] The above examples are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent transformation or modification made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. Oil-gas separation device, characterized in that: include: An oil-gas separation tank, comprising a tank body and a primary filter cartridge arranged in the tank body, the side wall of the tank body is provided with an air inlet, an oil inlet and an oil outlet, and the upper end of the tank body is provided with an air outlet; An oil separator seat, which is fixed to the upper end of the tank body, wherein a mixed gas channel and a purified gas channel are provided in the oil separator seat, wherein the mixed gas channel is connected to the gas outlet, and the purified gas channel is connected to an exhaust pipe; A fine filter assembly is detachably mounted on the oil separator seat, wherein an air inlet end of the fine filter assembly is connected to the mixed gas channel and an air outlet end thereof is connected to the purified gas channel.

2. The oil-gas separation device according to claim 1, characterized in that: The fine filter assembly includes an outer shell and a filter element component arranged in the outer shell, the outer shell includes a cylindrical portion with an opening at one end and a mounting end plate arranged at the opening position, the lower end of the filter element component abuts against the mounting end plate and an elastic support member is provided between the upper end and the cylindrical portion, and a plurality of through holes are provided on the mounting end plate.

3. The oil-gas separation device according to claim 2, characterized in that: The filter element component comprises an upper end cover, a lower end cover and a filter element body fixed between the upper end cover and the lower end cover.

4. The oil-gas separation device according to claim 2, characterized in that: A filter element connecting seat is arranged on the oil separator seat, and a mounting hole for the filter element connecting seat to pass through is arranged in the middle of the mounting end plate and is threadedly connected with the filter element mounting seat.

5. The oil-gas separation device according to claim 4, characterized in that: The filter element connecting seat is also provided with an air outlet pipe extending through the lower end cover to the middle part of the filter element component, the air outlet pipe connects the purified air channel with the interior of the filter element body, the gap between the filter element connecting seat and the air outlet pipe is matched to form an oil return channel, and the oil separator seat is provided with an oil return port connected to the oil return channel.

6. The oil-gas separation device according to claim 1, characterized in that: The tank body includes a cylinder, an upper cover arranged at the upper end of the cylinder and an elliptical head arranged at the lower end of the cylinder. A supporting foot assembly is provided at the lower part of the cylinder. The oil separator seat is fixed on the upper end of the upper cover, the primary filter cartridge is installed at the lower end of the upper cover, the elliptical head is connected to a sewage pipe, the air inlet, oil inlet and oil discharge port are arranged on the cylinder, and the air outlet is arranged on the upper cover.

7. The oil-gas separation device according to claim 6, characterized in that: The side wall of the cylinder is provided with an oil sight glass seat for mounting an oil sight glass.

8. The oil-gas separation device according to claim 6, characterized in that: A safety valve is installed on the upper cover.

9. The oil-gas separation device according to claim 6, characterized in that: The oil outlet is connected to an oil outlet pipe extending into the elliptical head.

10. The oil-gas separation device according to claim 1, characterized in that: The air inlet is connected with an air inlet pipe.

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