Horizontal oil-gas separation tank

Abstract

The utility model provides a horizontal oil-gas separation tank. The horizontal oil-gas separation tank comprises a tank body, wherein a first screen plate, a second screen plate and a third screen plate are arranged in the tank body at intervals; a first filtering part is arranged between the first screen plate and the second screen plate, and the first filtering part is filled with glass fibers; a second filtering part is arranged between the second screen plate and the third screen plate, and the second filtering part is filled with activated carbon; an air inlet cavity is formed in the side, away from the second screen plate, of the first screen plate, and an air inlet is formed in the air inlet cavity; an air outlet cavity is formed in the side, away from the second screen plate, of the third screen plate, an air outlet and an oil discharge outlet are formed in the air outlet cavity, and the oil discharge outlet is formed in the transverse bottom of the tank body and used for discharging separated oil; one end of the air outlet is located in the air outlet cavity and provided with an inclined notch, and the inclined notch faces the side away from the third net plate and is used for buffering filtered air. The oil mist separator can effectively prevent gas escape, oil-gas separation is good, and the gas purification effect after filtration is good.

Description

Technical Field

[0001] The present disclosure relates to the technical field of oil mist separation, and more specifically to a horizontal oil-gas separation tank. Background Art

[0002] High-purity helium is compressed in the compressor to produce high-pressure helium. At this time, the high-purity helium is mixed with oil mist, which needs to be separated. Usually, the high-purity helium released after being pressurized by the compressor needs to be cooled by a heat exchanger first. The cooled helium needs to pass through an oil mist separator to filter out most of the oil mist. The filtered helium then enters the adsorber for further purification.

[0003] The prior art has disclosed a horizontal oil-gas separation tank for use between a refrigerator and a compressor, comprising a tank body, a filter screen, an air inlet, an air outlet and an oil outlet, the filter screen divides the inner cavity of the tank body into an air inlet cavity, a filter cavity and an air outlet cavity, the air inlet is connected to the air inlet cavity, the air outlet is connected to the air outlet cavity, the oil outlet is connected to the air inlet cavity, and the filter cavity has only one cavity and is filled with only one filter filler, but since the oil outlet and the air inlet are in the same chamber, it is necessary to tilt the tank body toward the air inlet end so that the separated oil can be easily discharged from the oil outlet, which causes the mixed gas at the air inlet to be easily discharged directly from the oil outlet and cause gas leakage, thereby reducing the oil-gas separation effect; and a single filter filler has a poor effect on oil-gas separation and gas purification. Utility Model Content

[0004] In view of the problems of gas leakage at the oil outlet, poor oil-gas separation effect and poor gas purification effect in the prior art, the present invention provides a horizontal oil-gas separation tank which is not prone to gas leakage, has better oil-gas separation and better gas purification effect after filtration.

[0005] The technical solution adopted by the utility model to solve the above technical problems is:

[0006] A horizontal oil-gas separation tank comprises a tank body, wherein a first mesh plate, a second mesh plate and a third mesh plate are arranged in the tank body at intervals;

[0007] A first filter portion is provided between the first mesh plate and the second mesh plate, and the first filter portion is filled with glass fiber;

[0008] A second filter portion is provided between the second mesh plate and the third mesh plate, and the second filter portion is filled with activated carbon;

[0009] A side of the first mesh plate away from the second mesh plate is an air inlet cavity, and an air inlet is provided at the air inlet cavity;

[0010] The side of the third mesh plate away from the second mesh plate is an air outlet cavity, and the air outlet cavity is provided with an air outlet and an oil drain port, and the oil drain port is arranged at the horizontal bottom of the tank body for discharging the separated oil; one end of the air outlet is located in the air outlet cavity, and the end has an inclined cut, and the inclined cut faces the side away from the third mesh plate, and is used to buffer the filtered gas.

[0011] In some embodiments, a safety valve interface is provided on the tank body, and the safety valve interface is connected to the air inlet chamber to ensure the upper limit of the tank body pressure; the safety valve interface is arranged in the air inlet chamber, because the mixed gas needs to be filtered in the tank body, so the position where the air pressure is most likely to be too high is at the air inlet end. The safety valve in the air inlet chamber can more effectively ensure the safety of the entire equipment and improve safety in use.

[0012] In some embodiments, the safety valve interface and the air inlet are located at different cross-sections, and the air inlet is located between the safety valve interface and the first mesh plate, so that there is a certain buffer space for the gas to enter the tank body; this arrangement can prevent the intake airflow from hitting the inner wall and rebounding directly to the safety valve interface. The safety valve at the rear end is aimed at the state after the airflow is buffered, reducing the accidental start-up of the safety valve, thereby ensuring the stability of the equipment during use.

[0013] In some embodiments, the mesh aperture of the second mesh plate is larger than the mesh aperture of the first mesh plate; this arrangement reduces the resistance in the direction of airflow flow so that the airflow will not be blocked at the transition position, resulting in uneven airflow at the rear end, thereby resulting in lower filtration efficiency.

[0014] In some embodiments, the mesh aperture of the third mesh plate is larger than the mesh aperture of the second mesh plate; this setting reduces the resistance in the direction of airflow flow so that the airflow will not be blocked at the transition position, resulting in uneven airflow at the rear end, thereby resulting in lower filtration efficiency.

[0015] In some embodiments, the first mesh plate and the third mesh plate are both provided with a cross-shaped support frame, and the support frame is fixedly connected to the inner wall of the tank body; after such a setting, the structure of the first mesh plate and the third mesh plate is made stronger, preventing them from deformation or breakage during use, thereby ensuring the stability and reliability of the equipment.

[0016] In some embodiments, an opening ring is provided on the second mesh plate, and the opening ring is fixedly connected to the inner wall of the tank body; after such a setting, on the one hand, the opening ring can adapt to a wider range of tolerances, thereby reducing the manufacturing precision requirements of the equipment and thus reducing production costs; on the other hand, the opening ring is located near the inner wall, and since there are fillers in the front and back, there is no need to consider strength, only flow resistance, thereby ensuring the fluidity of the airflow and further improving the filtration efficiency.

[0017] In some embodiments, a wool felt is placed on the side of the third mesh plate facing the second mesh plate, and the density of the wool felt is 3g / CM 3 , thickness is 15mm; after this setting, the wool felt of this thickness and density can effectively prevent the activated carbon and glass fiber from being brought out when the gas passes through, and the flow resistance is relatively low, and the overall effect is better.

[0018] In some embodiments, the density of the glass fiber is 350-400 Kg / M 3 ; The activated carbon is columnar coconut shell charcoal; under this density of fiber, the comprehensive effect of gas flow resistance and oil and gas separation is better, and the gas can also be purified and separated by the activated carbon, and finally the gas separation and purification are better.

[0019] Compared with the prior art, the horizontal oil-gas separation tank provided by the present invention has a better helium filtering effect due to the provision of two filter chambers, and the oil discharge port is arranged in the air outlet chamber, which can effectively prevent gas leakage, improve the utilization efficiency of helium, reduce the frequency of gas replenishment, and the safety valve is arranged in the air inlet chamber where high pressure is prone to occur, so that the oil mist separator is highly safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present disclosure will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be used as a limitation on the scope of the present disclosure. In addition, unless otherwise specified, the drawings are only schematically representing the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0021] Figure 1 : A schematic structural diagram of a horizontal oil-gas separation tank provided by the present disclosure;

[0022] Figure 2 : A cross-sectional view of a horizontal oil-gas separation tank provided by the present disclosure;

[0023] Figure 3 : A schematic diagram of the structure of the first mesh plate of a horizontal oil-gas separation tank provided by the present disclosure;

[0024] Figure 4 : A structural schematic diagram of a horizontal oil and gas separation tank support frame provided by the present invention;

[0025] Among them, 1, tank body; 11, first mesh plate; 111, support frame; 12, second mesh plate; 121, opening ring; 13, third mesh plate; 1a, air inlet cavity; 1b, first filter part; 1c, second filter part; 1d, air outlet cavity; 2, air inlet; 3, air outlet; 31, inclined incision; 4, oil drain port; 5, safety valve interface. DETAILED DESCRIPTION

[0026] The present disclosure is described in detail below in conjunction with the accompanying drawings.

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the present disclosure is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present disclosure and are not used to limit the present disclosure.

[0028] Those skilled in the art should understand that, in the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0029] like Figures 1 to 4 A horizontal oil-gas separation tank is shown, which is described in detail as follows:

[0030] The oil mist separator comprises a tank body 1, wherein a first mesh plate 11, a second mesh plate 12, and a third mesh plate 13 are sequentially arranged in the tank body 1; the first mesh plate 11, the second mesh plate 12, and the third mesh plate 13 are connected to the tank body 1 by welding, and the first mesh plate 11, the second mesh plate 12, and the third mesh plate 13 divide the inner cavity of the tank body 1 into four parts, wherein an air inlet cavity 1a is formed between the first mesh plate 11 and the side wall of the tank body 1, a first filter portion 1b is formed between the first mesh plate 11 and the second mesh plate 12, a second filter portion 1c is formed between the second mesh plate 12 and the third mesh plate 13, and an air outlet cavity 1d is formed between the third mesh plate 13 and the other side wall of the tank body 1, an air inlet 2 is formed on the air inlet cavity 1a, and an air outlet 3 is formed on the air outlet cavity 1d, and high-pressure helium is released after being pressurized by a compressor, and enters the oil mist separator from the air inlet 2, sequentially. The oil in the gas is filtered and separated by the first filter part 1b and the second filter part 1c, and the filtered gas flows out from the gas outlet 3. In order to prevent the high-pressure helium from bringing out the precipitated oil when flowing out from the gas outlet 3, an inclined cutout 31 is provided at one end of the gas outlet 3, and extends to the inside of the tank body 1, that is, extends to the gas outlet cavity 1d. Preferably, the angle of the inclined cutout 31 is 45°, and the inlet of the inclined cutout 31 faces the side wall of the tank body 1. Therefore, when the high-pressure helium flows from the filter part to the gas outlet 3, it can be buffered to a certain extent, avoiding the helium from flowing directly to the gas outlet 3 and the higher pressure from bringing up the precipitated oil. In addition, the gas outlet 3 extends to the inside of the tank body 1, so that the inlet on the gas outlet 3 is in the inner cavity of the tank body 1, rather than directly on the wall of the tank body 1. In this way, the oil precipitated on the inner wall of the tank body 1 can be prevented from flowing directly to the gas outlet 3, causing secondary pollution to the gas.

[0031] Furthermore, the first filter portion 1b is filled with glass fiber. In this embodiment, alkali-free glass fiber with better chemical properties is used, and the diameter of the fiber filament is 3-15μm. In addition, in order to achieve a good filtering effect, the glass fiber needs to be compressed to make its density reach 350-400Kg / M³, so that the oil in the helium can be well adsorbed. The density of oil is greater than that of helium, so the oil is not easy to become droplets or mist, but accompanies the helium, thereby purifying the helium and restoring the purity of the helium. In order to further improve the filtering effect, the second filter portion 1c is filled with activated carbon. The activated carbon can adsorb water vapor, nitrogen, oil mist, etc. in the helium. The activated carbon in this embodiment is made of coconut shell, and the activated carbon is columnar. In order to improve the adsorption capacity of the activated carbon, the activated carbon is acid-washed and high-temperature baked to make its CTC value 60-90%. The CTC value is a value that represents the adsorption capacity of the activated carbon, so as to further purify the high-pressure helium.

[0032] Furthermore, when high-pressure helium flows out from the first filter part 1b and the second filter part 1c, it is easy to bring out glass fiber and activated carbon. In order to avoid this situation, a wool felt is provided at the third mesh plate 13. The wool felt is a high-purity wool felt with a density of 3g / CM³ and a thickness of 15mm. The wool felt is located between the activated carbon and the third mesh plate 13, which can effectively prevent the glass fiber and activated carbon from being brought out by the high-pressure gas, thereby avoiding unnecessary loss and pollution.

[0033] Furthermore, in order to achieve a better filtering effect, it is necessary to use compressed glass fiber, which has a higher density and can better absorb oil mist. Due to the higher density of glass fiber, the mesh plate is easily deformed or broken when subjected to force. Therefore, the first mesh plate 11 and the third mesh plate 13 are provided with a cross-shaped support frame 111 on the side close to the side wall of the tank body 1, such as Figure 4 The support frame 111 shown in the figure is two cross-arranged reinforcing ribs, which are used to increase the strength of the first mesh plate 11 and the third mesh plate 13. The support frame 111 is connected to the first mesh plate 11 or the third mesh plate 13 by welding, and the support frame 111 is welded to the inner wall of the tank body 1. The aperture of the first mesh plate 11 is larger than the aperture of the second mesh plate 12, and the aperture of the second mesh plate 12 is larger than the aperture of the third mesh plate 13, thereby reducing the resistance in the direction of airflow flow, so that the airflow will not be blocked at the transition position, resulting in uneven airflow at the rear end, which in turn leads to lower filtration efficiency.

[0034] Furthermore, an opening ring 121 is also provided on the second mesh plate 12, and the opening ring 121 is welded to the second mesh plate 12, and the opening ring 121 is located on one side of the second filter portion 1c, so that the strength of the second mesh plate 12 can be higher, and the second mesh plate 12 and the tank body 1 can be better welded to prevent the glass fiber from squeezing, deforming and breaking the welding points of the second mesh plate 12. The mesh plate has a higher strength and can ensure that the glass fiber is not easy to loosen, avoiding its density reduction affecting the filtering effect. In addition, the opening on the opening ring 121 can better match the shape of the tank body 1, so that its welding effect is better.

[0035] Furthermore, an oil drain port 4 is provided on the air outlet cavity 1d, and the oil drain port 4 is located at the bottom of the tank body 1. After the filtered oil is precipitated, it can flow out from the oil drain port 4. The other end of the oil drain port 4 is connected to the compressor, and the separated oil returns to the compressor from the oil pipe connected to the oil drain port 4 for recycling. During installation, the tank body 1 is tilted toward the oil drain port 4, so that the separated oil can quickly enter the oil drain port 4 and flow out of the tank body 1.

[0036] Furthermore, a safety valve interface 5 is also provided on the air inlet chamber 1a, and the safety valve interface 5 can release gas with a pressure higher than the normal operating pressure of the compressor, so as to avoid the compressor malfunctioning during operation to form excessive pressure, which may cause the pipeline or tank body 1 to rupture and cause a safety accident. In addition, the safety valve interface 5 and the air inlet 2 are located at different cross-sections, so that the gas with abnormal pressure can have a certain buffer space after entering the tank body 1, and then be released from the safety valve interface 5, thereby reducing the pressure on the safety valve interface 5 and extending its service life. It can be understood that the cross-section is a surface parallel to the side wall of the tank body 1. In addition, the air inlet 2 and the air outlet 3 are located at the same horizontal height, and they are arranged in the middle of the tank body 1, so that the gas can flow more smoothly in the tank body 1.

[0037] Compared with the prior art, the present invention provides a horizontal oil-gas separation tank, which has a good filtering effect on high-pressure helium, can effectively separate the oil mist in the gas, and can well avoid the gas from carrying out the precipitated oil when it flows out of the filter part to cause secondary pollution.

[0038] The present disclosure is described in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present disclosure. The description of the above embodiments is only used to help understand the present disclosure and its core ideas. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present disclosure, several improvements and modifications can be made to the present disclosure, and these improvements and modifications also fall within the scope of protection of the claims of the present disclosure.

Claims

1. A horizontal oil-gas separation tank, characterized in that: It comprises a tank body (1), wherein a first mesh plate (11), a second mesh plate (12), and a third mesh plate (13) are arranged at intervals inside the tank body (1); A first filter portion (1b) is provided between the first mesh plate (11) and the second mesh plate (12), and the first filter portion (1b) is filled with glass fibers; A second filter portion (1c) is provided between the second mesh plate (12) and the third mesh plate (13), and the second filter portion (1c) is filled with activated carbon; A side of the first mesh plate (11) away from the second mesh plate (12) is an air inlet cavity (1a), and an air inlet port (2) is provided at the air inlet cavity (1a); The side of the third mesh plate (13) away from the second mesh plate (12) is an air outlet cavity (1d), and the air outlet cavity (1d) is provided with an air outlet (3) and an oil discharge port (4), and the oil discharge port (4) is arranged at the bottom of the tank body (1) in the horizontal direction, and is used to discharge the separated oil; one end of the air outlet (3) is located in the air outlet cavity (1d), and the end has an inclined cutout (31), and the inclined cutout (31) faces the side away from the third mesh plate (13), and is used to buffer the filtered gas; a safety valve interface (5) is arranged on the tank body (1), and the safety valve interface (5) is connected to the air inlet cavity (1a), and is used to ensure the upper limit of the pressure of the tank body (1); the safety valve interface (5) and the air inlet (2) are located at different cross sections, and the air inlet (2) is located between the safety valve interface (5) and the first mesh plate (11); the mesh aperture of the second mesh plate (12) is larger than the mesh aperture of the first mesh plate (11).

2. A horizontal oil-gas separation tank according to claim 1, characterized in that: The mesh aperture of the third mesh plate (13) is larger than the mesh aperture of the second mesh plate (12).

3. The horizontal oil-gas separation tank according to claim 1, characterized in that: A cross-shaped support frame (111) is provided on each of the first mesh plate (11) and the third mesh plate (13), and the support frame (111) is fixedly connected to the inner wall of the tank body (1).

4. The horizontal oil-gas separation tank according to claim 1, characterized in that: The second mesh plate (12) is provided with an opening ring (121), and the opening ring (121) is fixedly connected to the inner wall of the tank body (1).

5. The horizontal oil-gas separation tank according to claim 1, characterized in that: A wool felt is placed on the side of the third mesh plate (13) facing the second mesh plate (12), and the density of the wool felt is 3g / cm 3 , thickness is 15mm.

6. The horizontal oil-gas separation tank according to claim 1, characterized in that: The density of the glass fiber is 350-400Kg / M 3 ; The activated carbon is columnar coconut shell charcoal.

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