Oil-gas separation device for compressing air

Abstract

A flange cover of the oil-gas separation device is arranged on the top face of a barrel body through bolts, an inner barrel body is arranged on the bottom face of the flange cover and located in the barrel body, and an air inlet connecting pipe is arranged on the wall of the barrel body and located on the outer wall of the middle of the inner barrel body. The vertical section of the air outlet connecting pipe is provided with a pipe sleeve at the bottom of the inner barrel body, the inner ring of the lower part of the pipe sleeve is clamped with the vertical section of the air outlet connecting pipe, and the diameter of the inner ring of the upper part of the pipe sleeve is greater than the outer diameter of the vertical section of the air outlet connecting pipe, so that an oil storage tank is formed; the oil return pipe is arranged on the side wall of the pipe sleeve, one end of the oil return pipe is communicated with the oil storage tank, the other end of the oil return pipe penetrates out of the side wall of the barrel body, the filter element is arranged in the inner barrel body, and the two end faces of the filter element abut against the position between the flange cover and the pipe sleeve. According to the device, effective oil-gas separation of compressed air is achieved, meanwhile, maintenance and core replacement operation of the device are facilitated, the operation efficiency is improved, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of oil-gas separation, in particular to an oil-gas separation device for compressed air. Background Art

[0002] Usually, the host of compressed air needs to be sealed, cooled, lubricated and noise-reduced by the injection of lubricating oil, and the discharged oil-gas mixture needs to be passed through the oil-gas separation device to make the compressed air initially purified and separated to meet the industrial application of compressed air. Most traditional separation devices are composed of a barrel body, a filter element, a sewage discharge component, etc. The top surface of the barrel body is provided with a barrel cover, and the barrel cover is provided with a pressure valve outlet pipe assembly, a control pipeline assembly, an oil return pipe assembly, etc. When maintaining the separation device and replacing the filter element, the various components on the barrel cover are usually removed first before the corresponding maintenance and core replacement operations can be carried out. This is time-consuming and labor-intensive, seriously affecting the operating efficiency and increasing the maintenance cost of the equipment. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide an oil-gas separation device for compressed air. The device overcomes the defects of maintenance operations of traditional oil-gas separation devices, and while realizing effective oil-gas separation of compressed air, facilitates the maintenance and core replacement operations of the device, improves operating efficiency, and reduces maintenance costs.

[0004] In order to solve the above technical problems, the utility model is a gas-oil separation device for compressed air, comprising a barrel, a filter element, a flange cover, an inner barrel, an air inlet pipe, an air outlet pipe, an oil return pipe, a sewage pipe and a sewage valve, wherein the flange cover is arranged on the top surface of the barrel by bolts, the inner barrel is arranged in the bottom surface of the flange cover and is located in the barrel, the air inlet pipe is arranged in the barrel wall and is located on the outer wall of the middle part of the inner barrel, the air outlet pipe is L-shaped, and the vertical section extends into the inner barrel, and the horizontal section passes through the side wall of the barrel. The vertical section of the air outlet pipe is provided with a pipe sleeve at the bottom of the inner cylinder body, the lower inner ring of the pipe sleeve is engaged with the vertical section of the air outlet pipe, and the diameter of the upper inner ring is larger than the outer diameter of the vertical section of the air outlet pipe to form an oil storage tank, the oil return pipe is arranged on the side wall of the pipe sleeve and one end is connected to the oil storage tank and the other end passes through the side wall of the barrel body, the filter element is arranged in the inner cylinder body and the two end surfaces are respectively abutted between the flange cover and the pipe sleeve, the drain pipe is arranged at the bottom of the barrel body, and the drain valve is arranged at the outlet of the drain pipe.

[0005] Furthermore, a first sealing ring is provided between the bottom surface of the filter element and the pipe sleeve, and a second sealing ring is provided between the flange cover and the barrel body.

[0006] Furthermore, a threaded interface is provided between the bottom surface of the filter element and the top surface of the pipe sleeve, and the filter element and the pipe sleeve are connected via the threaded interface.

[0007] Since the utility model adopts the above technical scheme for the oil-gas separation device for compressed air, that is, the flange cover of the device is arranged on the top surface of the barrel body by bolts, the inner cylinder body is arranged on the bottom surface of the flange cover and is located in the barrel body, the air inlet pipe is arranged on the barrel body wall and is located on the outer wall of the middle part of the inner cylinder body, the air outlet pipe is L-shaped and the vertical section extends into the inner cylinder body and the horizontal section passes through the side wall of the barrel body, the vertical section of the air outlet pipe is provided with a pipe sleeve at the bottom of the inner cylinder body, the lower inner ring of the pipe sleeve is engaged with the vertical section of the air outlet pipe, and the diameter of the upper inner ring is larger than the outer diameter of the vertical section of the air outlet pipe to form an oil storage tank, the oil return pipe is arranged on the side wall of the pipe sleeve and one end is connected to the oil storage tank and the other end passes through the side wall of the barrel body, the filter element is arranged in the inner cylinder body and the two end surfaces are respectively against the flange cover and the pipe sleeve, the drain pipe is arranged at the bottom of the barrel body, and the drain valve is arranged at the outlet of the drain pipe. The device overcomes the defects of the maintenance and maintenance of the traditional oil-gas separation device, and while realizing the effective oil-gas separation of compressed air, it is convenient for the maintenance and core replacement of the device, improves the operating efficiency, and reduces the maintenance and maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The present invention is further described in detail below in conjunction with the accompanying drawings and implementation examples:

[0009] Figure 1 This is a schematic structural diagram of an oil-gas separation device for compressed air according to the utility model;

[0010] Figure 2 for Figure 1 AA view;

[0011] Figure 3 This is a schematic diagram of the filter element structure in this oil-gas separation device. DETAILED DESCRIPTION

[0012] Implementation example Figure 1 and Figure 2As shown, the utility model for the oil-gas separation device of compressed air comprises a barrel body 1, a filter element 2, a flange cover 3, an inner barrel body 4, an air inlet pipe 5, an air outlet pipe 6, an oil return pipe 7, a drain pipe 8 and a drain valve 9, wherein the flange cover 3 is arranged on the top surface of the barrel body 1 by bolts 31, the inner barrel body 4 is arranged on the bottom surface of the flange cover 3 and is located in the barrel body 1, the air inlet pipe 5 is arranged on the wall of the barrel body 1 and is located on the outer wall of the middle part of the inner barrel body 4, the air outlet pipe 6 is L-shaped and the vertical section extends into the inner barrel body 4 and the horizontal section passes through the side wall of the barrel body 1, and the outlet pipe 6 is L-shaped. The vertical section of the air pipe 6 is provided with a pipe sleeve 61 at the bottom of the inner cylinder 4, the lower inner ring of the pipe sleeve 61 is engaged with the vertical section of the air outlet pipe 6, and the diameter of the upper inner ring is larger than the outer diameter of the vertical section of the air outlet pipe 6 to form an oil storage tank, the oil return pipe 7 is provided on the side wall of the pipe sleeve 61 and one end is connected to the oil storage tank and the other end passes through the side wall of the barrel body 1, the filter element 2 is provided in the inner cylinder 4 and the two end surfaces are respectively abutted between the flange cover 3 and the pipe sleeve 61, the drain pipe 8 is provided at the bottom of the barrel body 1, and the drain valve 9 is provided at the outlet of the drain pipe 8.

[0013] Preferably, a first sealing ring 21 is provided between the bottom surface of the filter element 2 and the pipe sleeve 61 , and a second sealing ring 32 is provided between the flange cover 3 and the barrel body 1 .

[0014] Preferably, Figure 3 As shown, a threaded interface 22 is provided between the bottom surface of the filter element 2 and the top surface of the pipe sleeve 61 , and the filter element 2 and the pipe sleeve 61 are connected via the threaded interface 22 .

[0015] When the device is working, the compressed air enters the barrel from the air inlet pipe and is directly sprayed on the outer wall of the inner barrel. It rotates at high speed along the outer wall of the inner barrel, performs mechanical centrifugal separation and impact, reduces its flow rate, and forms larger oil droplets and impurities. Due to the weight of the oil droplets and impurities themselves, most of them settle to the bottom of the barrel and can be discharged from the barrel through the drain pipe and drain valve regularly. After centrifugal separation and impact separation, the compressed air enters the inner barrel through the bottom of the inner barrel, and is finely separated by the filter element. The very little oil remaining in the compressed air is separated and accumulated in the oil storage tank of the pipe sleeve under the action of gravity, and then flows out of the barrel through the return oil pipe. The clean compressed air in the filter element is transmitted out of the barrel through the air outlet pipe and sent to the gas storage tank, etc.

[0016] The device can effectively separate oil and impurities in compressed air, and it is easy to install and disassemble. When installing, remove the flange cover from the top of the barrel body, and then screw the filter element mouth downward on the top of the pipe sleeve through the threaded interface. The top of the pipe sleeve matches the interface on the filter element. The installation of the device can be completed by installing the flange cover on the top of the barrel body; when disassembling, only the flange cover and the inner cylinder body need to be removed from the top of the barrel body, and the filter element can be replaced or the equipment can be maintained. Sealing rings are set on both ends of the filter element to prevent oil from overflowing from both ends of the filter element, so that maintenance or replacement of the filter element is simple and convenient. In addition, the pipe sleeve is provided with an oil storage tank. Due to gravity, the oil will not accumulate at the bottom of the filter element, but fall into the oil storage tank along the filter element wall, and then flow out of the barrel body through the return oil pipe installed on the side of the pipe sleeve. The compressed air separated by oil and gas flows out from the air outlet pipe in the filter element, so that the oil content of the compressed air is less, the oil loss is also less, and the quality of the gas used by users is improved.

[0017] Compared with the traditional oil separator installation and maintenance, this device is more convenient and time-saving. When maintaining the traditional oil separator, the pressure valve outlet pipe assembly, control pipeline assembly, and oil return pipe assembly installed on the barrel cover must be removed, which is time-consuming and labor-intensive. When maintaining this device, you only need to remove the flange cover and use the disassembly tool to rotate the filter element to take it out, which improves operating efficiency and reduces maintenance costs. In addition, the oil flows out along the oil return pipe of the oil storage tank at the bottom of the oil separator installation pipe sleeve, reducing the oil content of the compressed air outlet, reducing gas pollution, and beautifying the environment.

Claims

1. An oil-gas separation device for compressed air, comprising a barrel and a filter element, characterized in that: The filter element is arranged in the inner cylinder and the two end surfaces are respectively abutted against between the flange cover and the sleeve. The filter element is arranged in the inner cylinder and the two end surfaces are respectively abutted against between the flange cover and the sleeve. The filter element is arranged in the inner cylinder and the two end surfaces are respectively abutted against between the flange cover and the sleeve. The filter element is arranged at the bottom of the barrel and the two end surfaces are respectively abutted against between the flange cover and the sleeve. The filter element is arranged at the bottom of the barrel and the sleeve.

2. The oil-gas separation device for compressed air according to claim 1, characterized in that: A first sealing ring is arranged between the bottom surface of the filter element and the pipe sleeve, and a second sealing ring is arranged between the flange cover and the barrel body.

3. The oil-gas separation device for compressed air according to claim 1 or 2, characterized in that: A threaded interface is provided between the bottom surface of the filter element and the top surface of the pipe sleeve, and the filter element and the pipe sleeve are connected via the threaded interface.

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