Built-in filter screen structure for oil separator

Abstract

The built-in filter screen structure for the oil separator comprises an oil separator shell and a filter assembly, the top of an inner cavity of the oil separator shell is fixedly connected with an upper gas guide pipe, the filter assembly is fixedly connected into the upper gas guide pipe, and the lower end of the upper gas guide pipe is fixedly connected with a lower gas guide pipe through a fixing plate. A filter screen is fixedly connected to the interior of the lower air guide pipe, drainage rods are symmetrically connected to the lower surface of the filter screen, meanwhile, supporting rods are symmetrically connected to the lower surface of the lower air guide pipe, and a drainage plate is fixedly connected to the outer side face of the lower air guide pipe; and meanwhile, intercepting rods are symmetrically connected in the mounting frame. According to the oil separator, the upper air guide pipe, the lower air guide pipe and the drainage plate are matched, so that the filter screen structure arranged in the oil separator has the effect of performing multiple filtration on airflow, the efficiency of separating and dripping oil drops can be improved in an auxiliary manner, and the separation effect of the filter screen structure is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil separator technical field, concretely relates to a built -in filter screen structure for oil separator. BACKGROUND

[0002] Oil separator, its function is to separate the lubricating oil in the high pressure steam discharged by refrigeration compressor to ensure that the device runs safely and efficiently, according to the oil separation principle of reducing airflow velocity and changing airflow direction, oil particles in high pressure steam can be separated under the action of gravity, commonly used oil separator has four kinds of washing type, centrifugal type, filler type and filter type, can also be summarized as collision method or affinity coalescence method according to the performance form, but the existing oil separator in the process of separating oil droplets by built-in filter screen, since the filter screen is usually installed in horizontal state, so that the small oil droplets separated on the filter screen are not easy to drop from the filter screen, thereby affecting the separation effect of small particle oil droplets by the filter screen, and the single filtering structure also easily leads to insufficient filtration, affecting the filtering effect of the oil separator. SUMMARY

[0003] In order to overcome the defects existing in the prior art, a built-in filter screen structure for oil separator is provided to solve the problems in the background art.

[0004] In order to achieve the above purpose, a built-in filter screen structure for oil separator is provided, which comprises an oil separator shell and a filter assembly, an air inlet pipe is fixedly connected to the upper surface of the oil separator shell, an upper air guide pipe is fixedly connected to the top of the inner cavity of the oil separator shell, the filter assembly is fixedly connected inside the upper air guide pipe, the lower end of the upper air guide pipe is fixedly connected to a lower air guide pipe through a fixed plate, the lower air guide pipe is fixedly connected to a filter screen inside, the lower surface of the filter screen is symmetrically connected to a drainage rod, the lower surface of the lower air guide pipe is symmetrically connected to a support rod, a drainage plate is fixedly connected to the outer side of the lower air guide pipe, and the drainage plate is symmetrically connected to an auxiliary rod inside, the filter assembly is composed of a mounting frame, a mounting rod and a flow interception rod, and the two ends of the mounting rod are symmetrically connected to the mounting frame, and the mounting frame is symmetrically connected to the flow interception rod inside.

[0005] Preferably, the mounting frame in the filter assembly has three groups, the three groups of mounting frames are all in the shape of a mouth, and a plurality of groups of flow interception rods are fixedly connected in each mounting frame in parallel and at equal intervals, the flow interception rods are in the shape of V, and the mounting frame and the flow interception rods are combined together to form the shape of a Chinese character.

[0006] Preferably, a plurality of groups of mounting rods are fixedly connected to the surface of the mounting frame at equal intervals, the mounting rods are all in the shape of a cylinder, the mounting frame and the mounting rods are combined together to form the shape of a Japanese character, and the flow interception rods in the adjacent mounting frames are distributed vertically in different planes.

[0007] Preferably, the upper air guide tube has a square cylindrical structure, and the fixing plate fixedly connected to the lower surface of the upper air guide tube has a circular structure. The fixing plate surface has a through-hole corresponding to the position of the inner cavity of the upper air guide tube, and the fixing plate and the through-hole are combined to form an outer circle and inner square structure.

[0008] Preferably, the lower air guide tube has a cylindrical structure, the outer diameter of the lower air guide tube is equal to the outer diameter of the fixed plate, and the filter screen fixedly connected to the upper end of the inner cavity of the lower air guide tube has a circular structure. At the same time, the multiple sets of guide rods uniformly connected to the lower surface of the filter screen all have a cylindrical structure.

[0009] Preferably, the guide plate fixedly connected to the outer side of the lower air guide pipe has a spiral structure, and the outer side of the guide plate is in contact with the side of the inner cavity of the oil separator housing. Furthermore, multiple sets of auxiliary rods are fixedly connected to the surface of the guide plate through uniformly opened through holes, and the auxiliary rods have a cylindrical structure.

[0010] Preferably, the bottom of the inner cavity of the oil separator housing has a frustum-shaped structure, and the lower end of the oil separator housing is fixedly connected to the oil outlet pipe, and the upper end of the side of the oil separator housing is fixedly connected to the air outlet pipe. At the same time, multiple sets of support rods are symmetrically connected to the lower surface of the lower air guide pipe. The support rods have a cylindrical structure, and the lower end of the support rods abuts against the bottom of the inner cavity of the oil separator housing.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: through the cooperation of the upper air guide pipe and the filter assembly, the airflow can first undergo corresponding oil droplet separation treatment when it flows into the oil separator housing. Furthermore, the structure of the intercepting rod in the filter assembly can help improve the efficiency of oil droplet detachment. The change in the inner volume of the upper and lower air guide pipes can effectively reduce the airflow velocity, thereby helping to enhance the separation effect of the filter screen on oil droplets carried in the airflow. Moreover, the guide rod set on the lower surface of the filter screen can help improve the efficiency of oil droplet separation. At the same time, through the cooperation of the guide plate, the lower air guide pipe and the auxiliary rod, the flow path of the airflow inside the oil separator housing can be extended, and the filtration effect of the collision method on oil droplets can be improved. Thus, through the setting of multiple filtration structures, the separation effect of the oil separator can be effectively enhanced. Attached Figure Description

[0012] Figure 1 This is a front view schematic diagram of an embodiment of the present utility model.

[0013] Figure 2 This is a top view of an embodiment of the present utility model.

[0014] Figure 3 This is a partial cross-sectional schematic diagram of the lower air guide tube according to an embodiment of the present utility model.

[0015] Figure 4 This is an embodiment of the present utility model. Figure 1 Enlarged diagram of point A.

[0016] Figure: 1, air inlet pipe; 2, oil separator shell; 3, upper air guide pipe; 4, fixed plate; 5, filter screen; 6, drainage rod; 7, lower air guide pipe; 8, drainage plate; 9, auxiliary rod; 10, support rod; 11, filter assembly; 12, mounting frame; 13, intercepting rod; 14, mounting rod. DETAILED DESCRIPTION

[0017] Referring to Figures 1 to 4 As shown in the utility model provides a kind of built-in filter screen structure for oil separator, comprising: oil separator shell 2 and filter assembly 11, oil separator shell 2 upper surface fixedly connected air inlet pipe 1, the inner cavity top of oil separator shell 2 is fixedly connected upper air guide pipe 3, upper air guide pipe 3 inside fixedly connected filter assembly 11, and upper air guide pipe 3 lower end is fixedly connected lower air guide pipe 7 by fixed plate 4, and lower air guide pipe 7 inside fixedly connected filter screen 5, the lower surface of filter screen 5 is symmetrically connected drainage rod 6, while lower air guide pipe 7 lower surface is symmetrically connected support rod 10, lower air guide pipe 7 outer side is fixedly connected drainage plate 8, and drainage plate 8 inside is symmetrically connected auxiliary rod 9, the filter assembly 11 is composed of mounting frame 12, mounting rod 14 and intercepting rod 13, and the both ends of mounting rod 14 are symmetrically connected mounting frame 12, while mounting frame 12 inside is symmetrically connected intercepting rod 13.

[0018] In the embodiment, the gas to be treated flows into the upper gas guide pipe 3 arranged in the inner cavity of the oil separator shell 2 through the gas inlet pipe 1, and when the gas passes through the filter assembly 11, the small oil droplets carried in the gas collide with the surface of the intercepting rod 13, and then the small oil droplets are attached to the surface of the intercepting rod 13, so that the preliminary oil droplet separation of the gas is realized, and the small oil droplets on the surface of the intercepting rod 13 flow together and merge into large oil droplets under the cooperation of the gas flow and the inclined surface of the intercepting rod 13, and then the large oil droplets quickly drop, and when the gas flow flows into the lower gas guide pipe 7 from the upper gas guide pipe 3, the flow rate of the gas flow is reduced due to the sudden increase in volume, so as to assist and enhance the separation and filtration effect of the small oil droplets in the gas flow by the filter screen 5, and the separated oil droplets on the surface of the filter screen 5 quickly drop under the cooperation of the drainage rod 6 and gravity, thereby improving the separation efficiency of the filter screen 5 and the oil droplets, so that the separated large oil droplets can be gathered at the bottom of the inner cavity of the oil separator shell 2, and the gas flow turns to flow into the gas flow channel divided by the drainage plate 8 after touching the oil surface, and in the turning process, part of the small oil droplets carried in the gas flow collide into the oil surface, thereby further improving the oil droplet separation effect in the gas flow, and in the process of flowing in the drainage plate 8, the small oil droplets carried in the gas flow collide with the surface of the auxiliary rod 9 one by one, so that the small oil droplets can flow together to form large oil droplets, thereby separating from the gas flow, and the large oil droplets can also flow into the oil surface at the bottom of the inner cavity of the oil separator shell 2 along the inclined surface of the drainage plate 8, and the gas flow passing through the multiple filter separation structures can be smoothly discharged through the gas outlet pipe connected to the oil separator shell 2, and the multiple filter screen separation structures built in the oil separator shell 2 can effectively enhance the separation and filtration effect of the oil droplets carried in the gas flow.

[0019] As a preferred embodiment, the mounting frame 12 in the filter assembly 11 has three groups, and each group of the mounting frame 12 is in a mouth-shaped structure, and a plurality of intercepting rods 13 are fixedly connected in parallel and at equal intervals in each group of the mounting frame 12, and the intercepting rod 13 is in a V-shaped structure, and the mounting frame 12 and the intercepting rod 13 are combined together to form a cross-shaped structure.

[0020] In the embodiment, as shown in Figure 2 and Figure 4 , the middle part of the intercepting rod 13 protrudes downward, so that the small oil droplets intercepted on the surface of the intercepting rod 13 can flow together to form large oil droplets, and the efficiency of the large oil droplets separating from the intercepting rod 13 can be improved under the dual action of gravity and airflow blowing.

[0021] As a preferred embodiment, a plurality of mounting rods 14 are fixedly connected at equal intervals on the surface of the mounting frame 12, and the plurality of mounting rods 14 are in a cylindrical structure, and the mounting frame 12 and the mounting rod 14 are combined together to form a sun-shaped structure, and the intercepting rods 13 in the adjacent mounting frame 12 are distributed vertically on different planes.

[0022] In the embodiment, as shown in Figure 2 andFigure 4 The distribution structure of the intercepting rods 13 in the adjacent installation frame 12 can assist in improving the distribution density of the intercepting rods 13 inside the upper air guide pipe 3, thereby assisting in improving the separation and filtration effect of the filtration structure inside the upper air guide pipe 3 on the oil droplets in the airflow.

[0023] As a preferred embodiment, the upper air guide pipe 3 is in a square tube structure, the fixed plate 4 fixedly connected to the lower surface of the upper air guide pipe 3 is in a circular structure, and a through hole is formed on the surface of the fixed plate 4 corresponding to the position of the inner cavity of the upper air guide pipe 3, and the fixed plate 4 and the through hole together form an outer circle and an inner square structure.

[0024] In this embodiment, as shown in Figure 1 , Figure 2 and Figure 3 , the structure of the fixed plate 4 is arranged so that the upper air guide pipe 3 and the lower air guide pipe 7 can be stably fixedly connected, ensuring the sealing of the connection between the two.

[0025] As a preferred embodiment, the lower air guide pipe 7 is in a cylindrical structure, the outer diameter of the lower air guide pipe 7 is equal to the outer diameter of the fixed plate 4, and the filter screen 5 fixedly connected to the upper end of the inner cavity of the lower air guide pipe 7 is in a circular structure, and the plurality of drainage rods 6 uniformly connected to the lower surface of the filter screen 5 are all in a cylindrical structure.

[0026] In this embodiment, as shown in Figure 1 and Figure 3 , the filter screen 5 arranged in the lower air guide pipe 7 can effectively separate and filter the small oil droplets carried by the inflowing airflow, and the arrangement of the drainage rods 6 enables the oil droplets accumulated on the surface of the filter screen 5 to quickly slide downward, improving the separation efficiency between the oil droplets and the filter screen 5.

[0027] As a preferred embodiment, the drainage plate 8 fixedly connected to the outer side of the lower air guide pipe 7 is in a spiral structure, the outer side of the drainage plate 8 is attached to the side of the inner cavity of the oil separator shell 2, and a plurality of auxiliary rods 9 are fixedly connected to the surface of the drainage plate 8 through uniformly formed through holes, and the auxiliary rods 9 are in a cylindrical structure.

[0028] In this embodiment, as shown in Figure 1 , Figure 2 and Figure 3 , the structure of the drainage plate 8 is arranged so that the airflow flowing out of the inner cavity of the oil separator shell 2 will flow along a specific path, thereby effectively extending the flow path of the airflow, and the auxiliary rods 9 uniformly arranged in the drainage plate 8 can assist in hindering the flow of residual oil droplets in the airflow, so that these small oil droplets can quickly merge into large oil droplets and be separated from the airflow, thereby improving the filtration and separation effect of the oil separator.

[0029] As a preferred implementation, the bottom of the inner cavity of the oil separator shell 2 is in a circular truncated cone structure, the lower end of the oil separator shell 2 is fixedly connected with an oil outlet pipe, the upper end of the side surface of the oil separator shell 2 is fixedly connected with an air outlet pipe, a plurality of support rods 10 are symmetrically connected to the lower surface of the lower air guide pipe 7, the support rods 10 are in a cylindrical structure, and the lower end of the support rod 10 abuts against the bottom of the inner cavity of the oil separator shell 2.

[0030] In the embodiment, the bottom of the inner cavity of the oil separator shell 2 is in a circular truncated cone structure, the lower end of the oil separator shell 2 is fixedly connected with an oil outlet pipe, the upper end of the side surface of the oil separator shell 2 is fixedly connected with an air outlet pipe, a plurality of support rods 10 are symmetrically connected to the lower surface of the lower air guide pipe 7, the support rods 10 are in a cylindrical structure, and the lower end of the support rod 10 abuts against the bottom of the inner cavity of the oil separator shell 2. Figure 1 Figure 2 The structure of the bottom of the inner cavity of the oil separator shell 2 can facilitate improving the efficiency of the oil droplets discharged from the oil outlet pipe, can assist in filtering and separating the small oil droplets carried in the airflow through the accumulated oil, and the support rods 10 can assist in improving the stability of the components arranged in the inner cavity of the oil separator shell 2.

[0031] The built-in filter screen structure of the oil separator can cooperate with the upper air guide pipe 3, the lower air guide pipe 7 and the drainage plate 8, so that the built-in filter screen structure of the oil separator has the effect of multiple filtering of the airflow, can assist in improving the efficiency of the oil droplets separated and dropped from the filter structure, and can enhance the separation effect of the filter screen structure.​

Claims

1. A built-in filter structure for an oil separator, comprising: An oil separator housing (2) and a filter assembly (11). The upper surface of the oil separator housing (2) is fixedly connected to an air inlet pipe (1). It is characterized in that: at the top of the inner cavity of the oil separator housing (2), an upper air guide pipe (3) is fixedly connected. Inside the upper air guide pipe (3), the filter assembly (11) is fixedly connected. And the lower end of the upper air guide pipe (3) is fixedly connected to a lower air guide pipe (7) through a fixing plate (4). Inside the lower air guide pipe (7), a filter net (5) is fixedly connected. On the lower surface of the filter net (5), drainage rods (6) are symmetrically connected. At the same time, on the lower surface of the lower air guide pipe (7), support rods (10) are symmetrically connected. On the outer side surface of the lower air guide pipe (7), a drainage plate (8) is fixedly connected. And inside the drainage plate (8), auxiliary rods (9) are symmetrically connected. The filter assembly (11) is composed of a mounting frame (12), mounting rods (14) and intercepting rods (13). And at both ends of the mounting rod (14), the mounting frame (12) is symmetrically connected. At the same time, inside the mounting frame (12), the intercepting rods (13) are symmetrically connected.

2. The built-in filter structure for an oil separator according to claim 1, characterized in that, There are three groups of mounting frames (12) in the filter assembly (11). The three groups of mounting frames (12) are all in a square-shaped structure. And inside each group of mounting frames (12), multiple groups of intercepting rods (13) are fixedly connected in parallel at equal intervals. The intercepting rods (13) are in a V-shaped structure. At the same time, the combination of the mounting frame (12) and the intercepting rods (13) forms a square-grid structure.

3. The built-in filter structure for an oil separator according to claim 1, characterized in that, On the surface of the mounting frame (12), multiple groups of mounting rods (14) are fixedly connected at equal intervals. And the multiple groups of mounting rods (14) are all in a cylindrical structure. The combination of the mounting frame (12) and the mounting rods (14) forms a rectangular structure. At the same time, the intercepting rods (13) in adjacent mounting frames (12) are distributed in a skew perpendicular manner.

4. The built-in filter structure for an oil separator according to claim 1, characterized in that, The upper air guide pipe (3) is in a square tube-shaped structure. The fixing plate (4) fixedly connected to the lower surface of the upper air guide pipe (3) is in a circular structure. And on the surface of the fixing plate (4), a through hole is correspondingly opened at a position relative to the inner cavity of the upper air guide pipe (3). The combination of the fixing plate (4) and the through hole forms a structure with a circular outer and a square inner.

5. The built-in filter structure for an oil separator according to claim 1, characterized in that, The lower air guide pipe (7) is in a cylindrical structure. The outer diameter of the lower air guide pipe (7) is equal to the outer diameter of the fixing plate (4). And inside the upper end of the inner cavity of the lower air guide pipe (7), the filter net (5) fixedly connected is in a circular structure. At the same time, the multiple groups of drainage rods (6) evenly connected to the lower surface of the filter net (5) are all in a cylindrical structure.

6. The built-in filter structure for an oil separator according to claim 1, characterized in that, The drainage plate (8) fixedly connected to the outer side surface of the lower air guide pipe (7) is in a spiral structure. And the outer side surface of the drainage plate (8) is in contact with the side surface of the inner cavity of the oil separator housing (2). And on the surface of the drainage plate (8), multiple groups of auxiliary rods (9) are fixedly connected through uniformly opened through holes. The auxiliary rods (9) are in a cylindrical structure.

7. The built-in filter structure for an oil separator according to claim 1, characterized in that, The bottom of the inner cavity of the oil separator housing (2) is in a frustum-shaped structure. And at the lower end of the oil separator housing (2), an oil outlet pipe is fixedly connected. At the upper end of the side surface of the oil separator housing (2), an air outlet pipe is fixedly connected. At the same time, at the lower surface of the lower air guide pipe (7), multiple groups of support rods (10) are symmetrically connected. The support rods (10) are in a cylindrical structure. And the lower ends of the support rods (10) abut against the bottom of the inner cavity of the oil separator housing (2).

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