Oil storage tank structure capable of filtering return oil

Abstract

The utility model provides an oil storage tank structure capable of filtering return oil, which comprises a tank body, an oil injection pipeline and an oil outlet pipeline are assembled on the side wall of the tank body, a filtering return oil device is arranged on the top wall of the tank body, the filtering return oil device comprises an oil return pipeline and a filter plate arranged in the tank body, and the filter plate is obliquely arranged in the tank body through a support. And after returning to the box body through the oil return pipeline, the oil is stored in the box body after being filtered by the filter plate. The oil storage tank is used for solving the problem that impurities such as metal chippings carried by oil circulation in the prior art cannot be filtered and are accumulated in the oil storage tank, and then follow-up oil pollution is caused.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment, and more specifically to a structure for a filterable oil storage tank with return oil. Background Technology

[0002] An oil storage tank, also known simply as an oil tank or storage tank, is a large, regularly shaped container used to store crude oil or other petroleum products. It serves to settle impurities in the oil and allow gases to escape. In existing technology, oil storage tanks only have the basic function of storing oil, relying on a static process to settle impurities.

[0003] When the oil storage tank is installed in the unit and serves as an oil supply device, the oil in the storage tank is supplied to other equipment in the unit through oil circuits, and finally returns to the storage tank through oil circuits. When the various equipment in the unit is operating, the oil circulation will carry metal debris generated by mechanical friction and wear throughout the unit into the oil circuits. Since the return end of the existing oil storage tank does not have a filtration function, the metal debris and other impurities mixed in during the oil circulation process will enter the storage tank together, causing impurities to accumulate and thus contaminating the oil stored in the tank later.

[0004] In view of this, it is necessary to improve the existing oil storage tanks to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to disclose a filterable oil storage tank structure for oil return, in order to solve the problem in the prior art that impurities such as metal scraps carried by oil circulation cannot be filtered out, resulting in their accumulation in the oil storage tank and thus causing subsequent oil contamination.

[0006] To achieve the above objectives, this utility model provides a filterable oil storage tank structure, comprising: a tank body, an oil injection pipeline and an oil outlet pipeline mounted on the side wall of the tank body, and a filter oil return device provided on the top wall of the tank body. The filter oil return device includes an oil return pipeline and a filter plate disposed within the tank body. The filter plate is inclinedly disposed within the tank body via a bracket. After the oil returns to the tank body via the oil return pipeline, it is filtered by the filter plate and stored within the tank body.

[0007] As a further improvement of this utility model, the bracket is assembled at the intersection of two vertical side walls inside the box. An inspection port is opened on the top wall of the box directly above the bracket. The bracket includes two parallel mounting plates. The top ends of the two mounting plates are vertically fixed to the top wall of the box near the inspection port on both sides. A first mounting frame and a second mounting frame are obliquely arranged between the two mounting plates. The first mounting frame and the second mounting frame are close to each other at one end in the length direction and far apart at the other end in the length direction. A filter plate is detachably installed on each of the first mounting frame and the second mounting frame.

[0008] As a further improvement of this utility model, the side wall of the box is equipped with a ladder, the inspection port is detachably connected to a maintenance plate, the oil return pipeline is vertically connected to the maintenance plate, and the top ends of the two mounting plates are fixed to the lower surface of the maintenance plate.

[0009] As a further improvement of this utility model, a filter device is provided in the return oil pipeline. The return oil pipeline flange is connected to the inspection plate. The filter device includes an overlapping part, a first filter screen and a second filter screen. The overlapping part is attached to the top surface of the return oil pipeline. The top end of the first filter screen is fixed to the inner edge of the overlapping part. After the first filter screen extends into the return oil pipeline, it is connected to the second filter screen. The diameter of the second filter screen is smaller than the inner diameter of the overlapping part.

[0010] A positioning flange is installed at the top of the return oil pipeline, and the bottom surface of the positioning flange and the top surface of the return oil pipeline abut against the upper and lower sides of the overlapping part.

[0011] As a further improvement of this utility model, the oil injection pipe of the box is assembled on the side wall of the box near the top wall, the oil injection pipe is connected to the purification mechanism, and the oil outlet pipe of the box is assembled on the side wall of the box near the bottom wall.

[0012] The tank is equipped with two parallel baffles arranged in an alternating manner along its length. After passing through the two filter plates, the oil is filled into the tank along the direction of the baffle separation.

[0013] As a further improvement of this utility model, a level transmitter is provided inside the box, and a level gauge is provided on the outer wall of the box.

[0014] As a further improvement of this utility model, an oil mist separator and an air filter are installed on the top wall of the housing.

[0015] As a further improvement of this utility model, an electric heating device and a platinum resistance thermometer are installed through the side wall of the box.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows: The box body 1 has an oil injection pipeline and an oil outlet pipeline. The oil injection pipeline is connected to the purification mechanism, and the oil purified by the purification mechanism is introduced into the box body through the oil injection pipeline to ensure the initial cleanliness of the oil in the box body. When it is necessary to supply oil to other equipment in the unit, the oil in the box body is transported to other equipment through the oil outlet pipeline, and the oil finally returns to the box body through the oil return pipeline. Since a certain amount of metal debris is generated due to the wear of the unit during the cyclic transportation of the oil, and the metal debris mixed in the oil enters the box body together, which will cause pollution of the oil. By setting a filter oil return device in the box body, when the oil returns to the box body through the oil return pipeline, the filter plate constituting the filter oil return device filters the oil once to filter out particulate metal impurities, so that the pure oil flows back into the box body, thereby avoiding the problem of subsequent oil pollution caused by the precipitation of metal debris in the box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. is a specific schematic diagram of the structure of the oil storage tank with filterable oil return in the present utility model;

[0018] Figure 2 FIG. is a schematic cross-sectional view of the present utility model cut along the radial direction of the oil return pipeline and the length direction of the box body;

[0019] Figure 3 is Figure 2 an enlarged view of part A in FIG.

[0020] Figure 4 FIG. is a schematic diagram of the structure of the oil return pipeline and the filtering device in the present utility model;

[0021] Figure 5 is Figure 4 an enlarged view of part B in FIG. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The present utility model will be described in detail below with reference to the embodiments shown in the drawings. However, it should be noted that these embodiments are not limitations on the present utility model, and any equivalent transformation or substitution in terms of function, method, or structure made by those of ordinary skill in the art based on these embodiments shall fall within the protection scope of the present utility model.

[0023] Refer Figures 1 to 5As shown, this is a specific embodiment of an oil return filterable storage oil tank structure disclosed by the present utility model. Compared with the prior art, the tank body 1 has an oil injection pipeline 12 and an oil outlet pipeline 11. The oil injection pipeline 12 is connected to a purification mechanism (not shown). The oil purified by the purification mechanism is introduced into the tank body 1 through the oil injection pipeline 12 to ensure the initial cleanliness of the oil in the tank body 1. When it is necessary to supply oil to other equipment in the unit, the oil in the tank body 1 is transported to other equipment through the oil outlet pipeline 11, and the oil finally returns to the tank body 1 through the oil return pipeline 3. Since a certain amount of metal debris will be generated due to the wear of the unit during the cyclic transportation of the oil, mixing with the oil and entering the tank body will cause pollution of the oil. By arranging a filter oil return device 2 in the tank body 1, when the oil returns to the tank body 1 through the oil return pipeline 3, the filter plate 21 constituting the filter oil return device 2 filters the oil once to filter out particulate metal impurities, so that the pure oil flows back into the tank body 1, thus avoiding the problem of subsequent oil pollution caused by the precipitation of metal debris in the tank body.

[0024] Refer to Figures 1 to 5 As shown, the oil return filterable storage oil tank structure in this embodiment includes a tank body 1. The side wall of the tank body 1 is equipped with an oil injection pipeline 12 and an oil outlet pipeline 11. The top wall of the tank body 1 is provided with a filter oil return device 2. The filter oil return device 2 includes an oil return pipeline 3 and a filter plate 21 arranged in the tank body 1. The filter plate 21 is inclined in the tank body 1 through a bracket 22. After the oil returns to the tank body 1 through the oil return pipeline 3, it is filtered by the filter plate 21 and then stored in the tank body 1.

[0025] Specifically, one end of the oil injection pipeline 12 far from the tank body 1 is connected to a purification mechanism (not shown, which is a conventional equipment for filtering oil bodies). One end of the oil outlet pipeline 11 far from the tank body 1 is connected to the equipment in the unit that needs oil supply (not shown). The oil introduced into the tank body 1 through the purification mechanism has good cleanliness to achieve the purpose of the tank body 1 providing clean oil to the unit. The oil is transported to other equipment in the unit through the oil outlet pipeline 11, circulated and finally returns to the tank body 1 through the oil return pipeline 3. More specifically, during the circulation of the oil in the unit, a certain amount of metal debris is generated due to friction. Mixing with the oil and directly entering the tank body 1 without filtration may cause impurities to deposit in the tank body 1 and cannot be discharged, thereby causing pollution to the subsequent oil injected into the tank body. When the oil is injected into the tank body 1 through the oil return pipeline, the filter plate 21 formed inside the tank body 1 and inclined can filter the metal impurities existing in the oil and has a guiding function, reducing the movement potential energy of the oil to a certain extent, so that the oil can be slowly injected into the inside of the tank body 1.

[0026] Refer to Figures 2 to 5As shown, the bracket 22 is assembled at the intersection of two vertical side walls inside the box body 1. An inspection opening 13 is opened on the top wall of the box body 1 directly above the bracket 22. The bracket 22 includes two parallel installation plates 221. The top ends of the two installation plates 221 are vertically fixed at positions on both sides of the top wall of the box body 1 close to the inspection opening 13. A first installation frame 222 and a second installation frame 223 are inclined between the two installation plates 221. One end of the first installation frame 222 and the second installation frame 223 in the length direction are close to each other, and the other end in the length direction is far from each other. A filter plate 21 is detachably arranged on each of the first installation frame 222 and the second installation frame 223. Further, refer to Figure 1 As shown, a ladder 14 is assembled on the side wall of the box body 1. A maintenance plate 23 is detachably connected at the inspection opening 13. The oil return pipeline 3 is vertically connected to the maintenance plate 23. The top ends of the two installation plates 221 are fixed to the lower surface of the maintenance plate 23.

[0027] When the oil returns to the box body 1 through the return pipeline 3, it flows into the box body 1 after being filtered by the two filter plates 21 assembled at the first installation frame 222 and the second installation frame 223 in sequence. More specifically, the filter plate 21 on the first installation frame 222 has a mesh hole slightly larger than that of the filter plate 21 on the second installation frame 223, and the mesh holes of the two filter plates 21 are all dense small holes. When the oil passes through the two filter plates 21, it will not directly pass through the screen, but slowly filter and flow downward along its slope. The two filter plates 21 are filtered successively to achieve a better filtering effect, so as to effectively ensure the cleanliness of the oil flowing into the box body 1. Further, in this embodiment, by vertically fixing the two installation plates 221 to the lower surface of the maintenance plate 23, the maintenance personnel can climb up to the top surface of the box body 1 through the ladder 14. When the maintenance plate 23 is removed from the inspection opening 13, the whole bracket 22 is removed together to clean or replace the filter plate 21, further avoiding the problem of subsequent oil pollution caused by metal impurities deposited in the box body 1.

[0028] Refer to Figures 3 to 5As shown, a filtering device 31 is provided in the oil return pipeline 3. The oil return pipeline 3 is flange-connected to the maintenance plate 23. The filtering device 3 includes a lapping part 311, a first filter screen 312 and a second filter screen 313. The lapping part 311 is fitted to the top surface of the oil return pipeline 3. The top end of the first filter screen 311 is fixedly connected to the inner edge of the lapping part 31. After the first filter screen 312 extends into the oil return pipeline 3, it is connected to the second filter screen 33. The diameter of the second filter screen 313 is smaller than the inner diameter of the lapping part 31. A positioning flange 32 is installed at the top end of the oil return pipeline 3. The bottom surface of the positioning flange 32 and the top surface of the oil return pipeline 3 abut against the upper and lower sides of the lapping part 32. It should be noted that in this embodiment, the first filter screen 311 and the second filter screen 312 have filtering holes with the same aperture, and the aperture of the filtering holes of the first filter screen 311 and the second filter screen 312 is larger than the aperture of the filter plate 21 assembled on the first mounting bracket 222. Moreover, the first filter screen 311 and the second filter screen 312 enclose a structure similar to a bowl shape to achieve the effect of contacting the oil flowing into the oil return pipeline 3 with a larger surface area. After larger-sized granular metal impurities are filtered out by the first filter screen 311 and the second filter screen 312, the oil continues to flow and contacts the two filter plates 21 successively, thereby further improving the filtering effect on the oil. After the maintenance plate 23 is removed from the inspection port 13, the whole filtering device 31 can be taken out from the oil return pipeline 3 by removing the positioning flange 32. A new filtering device 31 is replaced in the oil return pipeline 3 and the positioning flange 32 is reinstalled at the top end of the oil return pipeline 3.

[0029] See Figures 1 to 5As shown, the oil filling pipe 12 of the tank 1 is installed on the side wall near the top wall of the tank 1, and the oil outlet pipe 11 of the tank 1 is installed on the side wall near the bottom wall of the tank 1. Two parallel baffles 15 are staggered inside the tank 1. After passing through two filter plates 21, the oil fills the tank 1 along the separation direction of the baffles 15. A level transmitter 16 is installed inside the tank 1, and a level gauge 17 is installed on the outer wall of the tank 1 to monitor the oil level inside the tank 1 in real time, ensuring that the oil level inside the tank 1 is at the specified height. An electric heating device 4 and a platinum resistance thermometer 5 are installed through the side wall of the tank 1. Furthermore, a temperature display meter 6 is installed on the side wall of the tank 1. After the oil level in the tank 1 reaches the specified height, the electric heating device 4 heats the oil until it reaches the specified temperature. The temperature of the oil inside the tank is monitored in real time by the platinum resistance thermometer 5 and the temperature display meter 6. Once the oil reaches the specified temperature, it is transported to other equipment through the oil outlet pipe 11. An oil mist separator 18 and an air filter 19 are installed on the top wall of the housing 1. When a large amount of oil fumes are generated inside the housing 1, the oil mist separator 18 removes the fumes. The air filter balances the air pressure inside and outside the housing 1, filters dust and impurities from the air, and also serves as the oil inlet for the housing 1. Furthermore, when a significant increase in impurities is detected in the oil inside the housing 1, the oil can be reintroduced into the purification mechanism through the oil filling pipe 12. After the oil is purified, it is reinjected into the housing 1 through the oil filling pipe 12, further improving the cleanliness of the oil.

[0030] The detailed descriptions listed above are merely specific descriptions of feasible implementations of this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent implementations or modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A filterable oil storage tank structure for oil return, characterized in that, include: The tank has an oil filling pipeline and an oil outlet pipeline installed on its side walls. The top wall of the tank is equipped with a filter return oil device, which includes a return oil pipeline and a filter plate installed inside the tank. The filter plate is installed at an angle inside the tank by a bracket. After the oil returns to the tank through the return oil pipeline, it is filtered by the filter plate and stored inside the tank.

2. The oil return filterable storage tank structure according to claim 1, characterized in that, The bracket is assembled at the intersection of two vertical side walls inside the box. An inspection port is opened on the top wall of the box directly above the bracket. The bracket includes two parallel mounting plates. The top ends of the two mounting plates are vertically fixed to the top wall of the box near the inspection port on both sides. A first mounting frame and a second mounting frame are inclinedly arranged between the two mounting plates. The first mounting frame and the second mounting frame are close to each other at one end along their length and far apart at the other end along their length. A filter plate is detachably installed on each of the first mounting frame and the second mounting frame.

3. The oil return filterable storage tank structure according to claim 2, characterized in that, The side wall of the housing is equipped with a ladder, the inspection port is detachably connected to a maintenance plate, the oil return line is vertically connected to the maintenance plate, and the top ends of the two mounting plates are fixed to the lower surface of the maintenance plate.

4. The oil return filterable storage tank structure according to claim 3, characterized in that, A filter device is installed inside the return oil pipeline. The return oil pipeline flange is connected to the inspection plate. The filter device includes an overlap, a first filter screen, and a second filter screen. The overlap is attached to the top surface of the return oil pipeline. The top of the first filter screen is fixed to the inner edge of the overlap. After the first filter screen extends into the return oil pipeline, it is connected to the second filter screen. The diameter of the second filter screen is smaller than the inner diameter of the overlap. A positioning flange is installed at the top of the return oil pipeline, and the bottom surface of the positioning flange and the top surface of the return oil pipeline abut against the upper and lower sides of the overlapping part.

5. The oil return filterable storage tank structure according to claim 2, characterized in that, The oil injection pipe of the box is installed on the side wall of the box near the top wall, and the oil injection pipe is connected to the purification mechanism. The oil outlet pipe of the box is installed on the side wall of the box near the bottom wall. The tank is equipped with two parallel baffles arranged in an alternating manner along its length. After passing through the two filter plates, the oil is filled into the tank along the direction of the baffle separation.

6. The oil return filterable storage tank structure according to claim 2, characterized in that, The box is equipped with a level transmitter and a level gauge on the outer wall of the box.

7. The oil return filterable storage tank structure according to claim 2, characterized in that, An oil mist separator and an air filter are installed on the top wall of the enclosure.

8. The oil return filterable storage tank structure according to claim 2, characterized in that, An electric heating device and a platinum resistance thermometer are installed on the side wall of the enclosure.

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