Oil-gas separation device

Abstract

The utility model 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, a gas inlet, an oil inlet and an oil outlet are formed in the side wall of the tank body, and a gas outlet is formed in the upper end of the tank body; 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 utility model, the fine filtration assembly is convenient to mount and dismount, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of compressor technology, and specifically relates to an oil-gas separation device. Background Technology

[0002] When an air compressor is working, the compressed air is under high temperature and pressure, causing some of the lubricating oil inside the compressor to vaporize into oil vapor and small oil droplets, which enter the exhaust pipe along with the compressed air. If these oil droplets and oil vapor enter the cooler that cools the gas, the cooler's cooling effect will be reduced. Therefore, an oil separator must be installed between the compressor and the cooler to separate the lubricating oil from the refrigerant vapor.

[0003] Existing oil-gas separators include an oil-gas separation tank, a primary filter cartridge and a filter element installed inside the oil-gas separation tank. When the filter element needs to be replaced, the cover plate at the top of the oil-gas separation tank needs to be removed, which is inconvenient for replacement and disassembly. Utility Model Content

[0004] Based on the above problems, the purpose of this utility model is to provide an oil-gas separation device, in which the fine filter component adopts an external structure, making installation and disassembly convenient.

[0005] To overcome the shortcomings of the existing technology, the technical solution provided by this utility model is as follows:

[0006] An oil-gas separation device includes:

[0007] An oil-gas separator includes a tank body and a primary filter cartridge disposed within 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 is fixed to the upper end of the tank body. The oil separator is provided with a mixed gas channel and a purified gas channel. 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. The air inlet of the fine filter assembly is connected to the mixed gas channel, and the air outlet is connected to the purified gas channel.

[0010] In one embodiment, the fine filtration assembly includes a housing and a filter element disposed within the housing. The housing includes a cylindrical portion with one end open and a mounting end plate disposed at the opening. The lower end of the filter element abuts against the mounting end plate, and an elastic support member is provided between the upper end of the filter element and the cylindrical portion. The mounting end plate has multiple through holes.

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

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

[0013] In one embodiment, the filter element connector is further provided with an air outlet pipe extending from the lower end cover to the middle of the filter element component. The air outlet pipe connects the purified air channel and the interior of the filter element body. The filter element connector and the air outlet pipe are fitted with a clearance to form an oil return channel. The oil separator is provided with an oil return port that connects to the oil return channel.

[0014] In one embodiment, the tank includes a cylindrical body, an upper cover disposed at the upper end of the cylindrical body, and an elliptical end cap disposed at the lower end of the cylindrical body. The lower part of the cylindrical body is provided with a support foot assembly. The oil separator is fixed to the upper end of the upper cover. The primary filter cartridge is installed at the lower end of the upper cover. The elliptical end cap is connected to a drain pipe. The air inlet, oil inlet, and oil outlet are disposed on the cylindrical body, and the air outlet is disposed on the upper cover.

[0015] In one embodiment, the side wall of the cylinder is provided with a sight glass mount for mounting a sight glass.

[0016] In one embodiment, a safety valve is installed on the top cover.

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

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

[0019] Compared with the prior art, the advantages of this utility model are:

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

[0021] 2. The internal structure of the oil-gas separator is simpler, eliminating the need for a separate structure and space to fix the fine filter components. Furthermore, the oil-gas separator does not require a removable cover plate; the top cover is welded to the cylinder to fix the structure, reducing leakage points.

[0022] 3. The safety valve is installed on the top cover, eliminating the need for a safety valve mounting seat on the cylinder body, thus simplifying the structure of the oil-gas separator. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

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

[0026] Figure 3 This is one of the structural schematic diagrams of the oil-gas separator in the embodiments of this utility model;

[0027] Figure 4 This is the second schematic diagram of the structure of the oil-gas separator in this embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the structure of the fine filtration component in an embodiment of this utility model;

[0029] Figure 6 This is one of the structural schematic diagrams of the fine filter assembly and oil separator seat in an embodiment of this utility model;

[0030] Figure 7 This is the second schematic diagram of the structure of the fine filter component and the oil separator in this embodiment of the present invention;

[0031] in:

[0032] 1. Oil-gas separator; 1-1. Tank body; 1-1a. Cylinder; 1-1b. Top 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. Sight glass mount;

[0033] 2. Oil separator seat; 2-1. Mixing gas passage; 2-2. Purified gas passage; 2-3. Filter element connecting seat; 2-4. Gas outlet pipe; 2-5. Oil return passage; 2-6. Oil return port;

[0034] 3. Fine filtration assembly; 3-1. Outer shell; 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 component;

[0035] 4. Air intake pipe;

[0036] 5. Exhaust pipe;

[0037] 6. Hose;

[0038] 7. Gas supply pipe support;

[0039] 8. Balloon supply valve;

[0040] 9. Quick couplings;

[0041] 10. Drain ball valve;

[0042] 11. Safety valve. Detailed Implementation

[0043] The above solution will be further described below with reference to specific embodiments. It should be understood that these embodiments are for illustrating the present invention and are not intended to limit the scope of the present invention. The implementation conditions used in the embodiments can be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are usually the conditions in conventional experiments.

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

[0045] like Figure 3 and Figure 4 As shown, the oil-gas separator 1 includes a tank body 1-1 and a primary filter cartridge 1-2 disposed inside the tank body 1-1. The tank body 1-1 includes a cylindrical body 1-1a, an upper cover 1-1b disposed at the upper end of the cylindrical body 1-1a, and an elliptical end cap 1-1c disposed at the lower end of the cylindrical body 1-1a. The cylindrical body 1-1a is cylindrical. The upper cover 1-1b and the elliptical end cap 1-1c are welded and fixed to the cylindrical body 1-1a respectively. The primary filter cartridge 1-2 is welded and fixed to the lower end of the upper cover 1-1b. 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 outlet 1-7 are provided on the side wall of the cylinder 1-1a. The air inlet 1-4 is connected to the air inlet pipe 4, which is the exhaust pipe assembly of the compressor unit, used to introduce the oil-gas mixture discharged from the compressor into the oil-gas separator 1. The oil inlet 1-6 is used to introduce oil into the oil-gas separator 1 according to the oil level in the oil-gas separator 1, controlling the oil level within a safe range. The oil outlet 1-7 is connected to the oil return pipe for oil reuse. To facilitate oil discharge, the oil outlet N1-7 is connected to an oil outlet pipe 1-8 extending into the elliptical head 1-1c. The oil outlet 1-7 can also be connected to the oil return pipe for oil reuse.

[0047] A support foot assembly is provided at the lower part of the cylinder 1-1a to support the entire oil-gas separator 1. The support foot assembly includes two support feet 1-3 arranged opposite each other. An air outlet 1-5 is provided on the upper cover 1-1b to allow the mixed gas separated by the primary filter cartridge 1-2 to be filtered by the fine filter assembly 3. A drain pipe 1-9 is connected to the bottom of the elliptical head 1.1c to empty the oil-gas separator 1 when changing the lubricating oil. The outlet of the drain pipe 1-9 is fixed to the support foot 1-3. The drain pipe 1-9 can be connected to a hose 6, and a drain ball valve 10 is provided on the hose 6 to control the opening and closing of the drain pipe 1-9.

[0048] To facilitate observation of the oil condition inside the oil-gas separator 1, an oil sight glass mount 1.10 is provided on the side wall of the cylinder 1-1a for mounting an oil sight glass.

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

[0050] like Figure 6 and Figure 7 As shown, the oil separator 2 is provided with a mixed gas channel 2-1 and a purified gas channel 2-2. The mixed gas channel 2-1 is connected to the gas outlet 1.5, and the purified gas channel 2-2 is connected to the exhaust pipe 5 via the minimum pressure valve. The mixed gas after oil-gas separation in the oil-gas separator tank 1 through the primary filter cartridge 1-2 enters the mixed gas channel 2-1 of the oil separator 2 through the gas outlet 1-5, and then enters the fine filter assembly 3 for further oil-gas separation. The purified gas after oil-gas separation by the fine filter assembly 3 is discharged through the purified gas channel 2-2 and then through the exhaust pipe 5. The lower end of the exhaust pipe 5 is connected to the air supply pipe support 7 via a flange. The air supply pipe support 7 is connected to the air supply pipe of the cooler via a quick connector 9. An air 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 is detachably installed on the oil separator seat 2. The air inlet of the fine filter assembly 3 is connected to the mixed gas channel 2-1 and the air outlet 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 within the housing 3-1. The housing 3-1 includes a cylindrical portion 3-1a with one end open and a mounting end plate 3-1b disposed at the opening. 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 provided 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 provided to stably support the filter element component 3-2 within the housing 3-1. Multiple perforations 3-1b1 are provided on the mounting end plate. When the fine filter assembly is installed on the oil separator seat 2, the multiple perforations 3-1b1 connect the mixed gas channel 2-1 with the inside of the outer shell 3-1 to allow the mixed gas to enter the fine filter assembly 3, and also facilitate the discharge of the oil separated by the filter element component 3-2 and its flow into the oil-gas separator tank 1.

[0052] 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 against the mounting end plate 3-1b.

[0053] 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. 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, the mounting hole position of the mounting end plate 3-1b is provided with a flange structure and an internal thread structure, while the filter element connecting seat 2-3 is provided with an external thread structure.

[0054] To facilitate the discharge of purified gas, an air outlet pipe 2-4 is provided inside the filter element connecting seat 2-3, extending from the lower end cover 3-2b to the middle of the filter element component 3-2. The air outlet pipe 2-4 connects the purified gas channel 2-2 and the interior of the filter element body 3-2c. The filter element connecting seat 2-3 and the air outlet pipe 2-4 are fitted with a clearance to form an oil return channel 2.5. At the same time, an oil return port 2-6 is provided on the oil separator seat 2, which connects to the oil return channel 2.5. The oil return port 2-6 is connected to the air compressor via an oil return pipe. 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 for reuse through the oil return channel 2-5 and the oil return port 2-6.

[0055] The working principle of this utility model is as follows:

[0056] The air-oil mixture compressed by the compressor enters the oil-gas separator tank 1 through the inlet pipe 4. The mixture first enters the primary filter cartridge 1-2. After impacting the inner wall of the primary filter cartridge 1-2, large particles of liquid lubricating oil are separated. The unseparated lubricating oil and compressed air enter the mixture channel 2-1 of the oil separator 2 through the outlet 1-5, and then enter the housing 3-1 of the fine filter assembly 3 through multiple perforations 3-1b1 on the mounting end plate 3-1b. The mixture achieves oil-gas separation through the filter element body 3-2c. The oil outside the filter element body 3-2c flows back to the oil-gas separator tank 1 through multiple perforations 3-1b1. A small amount of oil inside the filter element body 3-2c accumulates at the bottom of the lower end cover 3-2b and returns to the oil through the return oil channel 2-5 between the filter element connecting seat 2-3 and the outlet pipe 2-4. The compressed air that has achieved oil-gas separation is discharged through the outlet pipe 2-4 to the purified air channel 2-2 of the oil separator 1 and then discharged through the exhaust pipe 5.

[0057] In summary, this oil-gas separation device facilitates the installation and disassembly of the fine filter components, makes replacement and maintenance easier, improves work efficiency, and simplifies the structure of the oil-gas separator tank.

[0058] The above examples are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. An oil-gas separation device, characterized in that, include: An oil-gas separator includes a tank body and a primary filter cartridge disposed within 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 is fixed to the upper end of the tank body. The oil separator is provided with a mixed gas channel and a purified gas channel. 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. The air inlet of the fine filter assembly is connected to the mixed gas channel, and the air outlet is connected to the purified gas channel.

2. The oil-gas separation device according to claim 1, characterized in that: The fine filtration assembly includes a housing and a filter element component disposed within the housing. The housing includes a cylindrical portion with one end open and a mounting end plate disposed at the opening. 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 of the filter element component and the cylindrical portion. The mounting end plate is provided with multiple through holes.

3. The oil-gas separation device according to claim 2, characterized in that: 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.

4. The oil-gas separation device according to claim 3, characterized in that: The oil separator seat is provided with a filter element connecting seat, and the mounting end plate has a mounting hole in the middle for the filter element connecting seat to pass through and is threadedly connected to the filter element mounting seat.

5. The oil-gas separation device according to claim 4, characterized in that: The filter element connector is also provided with an air outlet pipe extending through the lower end cover to the middle of the filter element component. The air outlet pipe connects the purified air channel and the interior of the filter element body. The filter element connector and the air outlet pipe are fitted with a clearance to form an oil return channel. The oil separator is provided with an oil return port that connects to the oil return channel.

6. The oil-gas separation device according to claim 1, characterized in that: The tank includes a cylindrical body, an upper cover disposed at the upper end of the cylindrical body, and an elliptical end cap disposed at the lower end of the cylindrical body. The lower part of the cylindrical body is provided with a support foot assembly. The oil separator is fixed to the upper end of the upper cover. The primary filter cartridge is installed at the lower end of the upper cover. The elliptical end cap is connected to a drain pipe. The air inlet, oil inlet, and oil outlet are disposed on the cylindrical body, and the air outlet is disposed 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 a sight glass mount for mounting the sight glass.

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

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

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

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