Petroleum filtering device for petroleum exploitation

Abstract

The utility model discloses a petroleum filtering device for petroleum exploitation, belongs to the technical field of filtering equipment, and aims to solve the technical problems that a petroleum filtering device in the prior art is limited in filtering precision and difficult to meet the requirement of petroleum exploitation on high quality of petroleum. The petroleum filtering device for petroleum exploitation comprises a tank body, a feeding pipe is arranged at the top end of the tank body, an inner cylinder is vertically arranged in the tank body, the bottom end of the inner cylinder and the inner bottom wall of the tank body are sealed, a clamping cavity is formed between the inner cylinder and the inner side wall of the tank body, the top end of the inner cylinder is hermetically covered with a filtering cover, and a second filtering net is embedded in the filtering cover; and a filter cylinder is arranged in the inner cylinder. The petroleum filtering device for petroleum exploitation adopts double filtration, can effectively improve the filtering quality of petroleum, meets the requirements of petroleum exploitation on petroleum quality, has an impurity cleaning function, reduces the blocking frequency of the filter screen, ensures the filtering efficiency and the service life of the filter screen, and reduces the workload and the cost of manual cleaning.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of filtering equipment, and particularly relates to a petroleum filtering device for petroleum exploitation. BACKGROUND

[0002] In the process of petroleum exploitation, various solid impurities of different sizes, such as sand, soil and rust, are often mixed in petroleum. If these impurities directly enter the subsequent processing and transportation links without effective filtering, not only will the petroleum exploitation and processing equipment be seriously abraded and damaged, the service life of the equipment be reduced, and the equipment maintenance and replacement costs be increased, but also the quality and purity of the petroleum product will be affected, thereby reducing the market value of the petroleum product and adversely affecting the economic benefits of the petroleum exploitation enterprise.

[0003] At present, although some petroleum filtering devices exist in the market, most of these devices have many shortcomings. Some petroleum filtering devices only adopt a single-stage filtering structure, and the filtering precision is limited, so that different particle size impurities in petroleum cannot be effectively removed, and the high-quality requirement of petroleum exploitation on petroleum cannot be met. Therefore, the petroleum filtering device for petroleum exploitation is provided. SUMMARY

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a petroleum filtering device for petroleum exploitation, which aims to solve the technical problem that the filtering precision of the petroleum filtering device in the prior art is limited and the high-quality requirement of petroleum exploitation on petroleum cannot be met.

[0005] In order to solve the above technical problems, the utility model provides a petroleum filtering device for petroleum exploitation, which comprises a tank body, a feed pipe is arranged at the top end of the tank body, an inner cylinder is vertically arranged in the tank body, the inner cylinder is sealed between the bottom end and the inner bottom wall of the tank body, a clamping cavity is formed between the inner cylinder and the inner side wall of the tank body, a filter cover is arranged on the top end of the inner cylinder, and a second filter screen is embedded on the filter cover; a filter cylinder is arranged in the inner cylinder, a first filter screen is embedded on the side wall of the filter cylinder, a filtering-out cavity is formed between the filter cylinder, the inner wall of the inner cylinder and the bottom wall of the tank body, a first discharge pipe and a second discharge pipe are arranged at the bottom end of the tank body, the first discharge pipe is communicated with the filtering-out cavity, and the second discharge pipe is communicated with the clamping cavity.

[0006] Preferably, the filter cover is provided with a conical cap structure, the top end of the filter cylinder is provided with a receiving hopper, and the petroleum filtered by the second filter screen is introduced into the filter cylinder and received by the receiving hopper.

[0007] Preferably, a limiting boss is arranged on the inner wall of the top end of the inner cylinder, and a ring seat is arranged on the outer side of the top end of the receiving hopper and is sealingly connected with the limiting boss.

[0008] Preferably, the tank top end is provided with a tank cover, the feed pipe is arranged on the tank cover, the tank cover lower surface is vertically rotationally connected with a shaft rod, the shaft rod top end side wall is connected with a support plate, the support plate is located above the filter cover and is parallel to the conical surface of the filter cover, the support plate bottom is provided with a cleaning brush, the cleaning brush is in contact with the second filter screen, and the tank cover top is provided with a motor for driving the shaft rod to rotate.

[0009] Preferably, the shaft rod bottom end penetrates the filter cover and extends into the filter cylinder, and a plurality of pairs of connecting plates are arranged radially on the side wall of the filter cylinder, the end portions of the plurality of pairs of connecting plates are vertically connected with scrapers, the first filter screen is flush with the inner wall of the filter cylinder, the scrapers are in contact with the first filter screen, the filter cover top end center is provided with a shaft sleeve, and the shaft sleeve is rotationally sealingly sleeved with the shaft rod.

[0010] Preferably, the filter cylinder bottom is provided with a positioning sleeve, and the tank interior bottom wall is fixedly provided with a positioning column, and the positioning sleeve is sleeved with the positioning column top end.

[0011] Preferably, one side of the tank cover towards the tank interior is fixedly provided with a flow distribution ring, the flow distribution ring is sleeved on the shaft rod, a flow distribution channel is formed in the flow distribution ring, the flow distribution ring lower surface is provided with an oil outlet nozzle, the oil outlet nozzle is in communication with the flow distribution channel, the oil outlet nozzle is inclined towards the second filter screen center, and the feed pipe end extending into the tank is in communication with the flow distribution channel.

[0012] Compared with the prior art, the oil filter has the beneficial effects that:

[0013] The second filter screen can filter out larger impurities in the petroleum, the first filter screen can further finely filter the petroleum, the filtering quality of the petroleum can be effectively improved, and the requirements of petroleum exploitation on the quality of the petroleum can be met.

[0014] In the utility model, the shaft rod is driven to rotate by the motor, the cleaning brush and the scraper are driven to clean the second filter screen and the first filter screen respectively, the frequency of filter screen blockage can be reduced, the filtering efficiency and service life of the filter screen can be ensured, and the workload and cost of manual cleaning can be reduced.

[0015] In the utility model, the flow distribution ring and the oil outlet nozzle are arranged, the petroleum can be uniformly sprayed to the second filter screen, the filtering area and the filtering efficiency of the second filter screen are improved, and the problem that local filtering effect is poor due to concentrated impact of the petroleum is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0018] Figure 2 It is a schematic diagram of the internal structure of the tank body in the present application.

[0019] Figure 3 It is a schematic diagram of the structure of the tank body and the inner cylinder in the present application.

[0020] Figure 4 It is a schematic diagram of the structure of the filter cartridge and the filter cover in the present application.

[0021] Figure 5 It is a schematic diagram of the structure of the tank cover, the flow distribution ring and the shaft in the present application.

[0022] Figure 6 It is a schematic diagram of the structure of the filter cartridge and the filter cover in the present application.

[0023] The marks in the drawings are: 1, tank body; 2, tank cover; 3, feed pipe; 4, first discharge pipe; 5, second discharge pipe; 6, motor; 7, inner cylinder; 8, filter cartridge; 9, clamping cavity; 10, filter cavity; 11, first filter screen; 12, filter cover; 13, second filter screen; 14, limiting boss; 15, flow distribution ring; 16, shaft; 17, connecting plate; 18, scraper; 19, receiving hopper; 20, support plate; 21, cleaning brush; 22, oil outlet; 23, shaft sleeve; 24, ring seat; 25, positioning sleeve; 26, positioning column; 27, flow distribution channel. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] The present embodiment provides a petroleum filtering device for petroleum exploitation, and a structural schematic diagram thereof is shown in FIG. 1. Figures 1-6 The device includes a tank body 1, a tank cover 2, a feed pipe 3, a first discharge pipe 4, a second discharge pipe 5, an inner cylinder 7 and a filter cartridge 8.

[0026] In the embodiment, the tank body 1 is provided with a tank cover 2 at the top end, and the tank cover 2 is sealingly connected with the tank body 1 by a conventional connection mode such as a bolt. A feed pipe 3 is provided on the tank cover 2, and oil enters the inside of the tank body 1 through the feed pipe 3. An inner cylinder 7 is vertically arranged in the tank body 1, and the bottom end of the inner cylinder 7 is sealingly connected with the bottom wall of the inside of the tank body 1 by a sealing rubber ring or the like, and a clamping cavity 9 is formed between the inner cylinder 7 and the inner side wall of the tank body 1. The top end of the inner cylinder 7 is sealingly covered with a filter cover 12, and the filter cover 12 adopts a cone cap structure. A second filter screen 13 is embedded on the filter cover 12, and the aperture of the second filter screen 13 is selected according to actual filtering requirements, which can effectively filter out larger particulate impurities in the oil.

[0027] Further, a filter cylinder 8 is arranged in the inner cylinder 7, and a first filter screen 11 is embedded on the side wall of the filter cylinder 8, and the aperture of the first filter screen 11 is smaller than that of the second filter screen 13, which can further finely filter the oil. The filter cylinder 8, the inner wall of the inner cylinder 7 and the bottom wall of the tank body 1 form a filter-out cavity 10, and the bottom end of the tank body 1 is provided with a first discharge pipe 4 and a second discharge pipe 5, the first discharge pipe 4 is communicated with the filter-out cavity 10, and the second discharge pipe 5 is communicated with the clamping cavity 9, and the oil after different filtering stages is discharged from the corresponding discharge pipe.

[0028] Further, the top end of the filter cylinder 8 is provided with a receiving hopper 19, and the oil filtered by the second filter screen 13 is received by the receiving hopper 19 and introduced into the filter cylinder 8. A limiting boss 14 is arranged on the inner wall of the top end of the inner cylinder 7, and a ring seat 24 is arranged on the outer side of the top end of the receiving hopper 19, and the ring seat 24 is sealingly connected with the limiting boss 14, which ensures the sealing of the inside of the inner cylinder 7 and prevents oil leakage.

[0029] Further, in the embodiment, the lower surface of the tank cover 2 is vertically rotatably connected with a shaft rod 16, the shaft rod 16 is rotatably connected with the tank cover 2 through a bearing, a motor 6 is installed on the top of the tank cover 2 for driving the shaft rod 16 to rotate, and the motor 6 provides power for the rotation of the shaft rod 16. A support plate 20 is connected on the top end side wall of the shaft rod 16, the support plate 20 is located above the filter cover 12, and the support plate 20 is parallel to the conical surface of the filter cover 12, a cleaning brush 21 is arranged on the bottom of the support plate 20, the cleaning brush 21 is in contact with the second filter screen 13, and in the process of rotating the shaft rod 16, the cleaning brush 21 can clean the second filter screen 13 to prevent the second filter screen 13 from being blocked, and since the filter cover 12 adopts a cone cap structure, the filtered impurities can fall into the clamping cavity 9 along the conical surface of the filter cover 12 and be collected.

[0030] Further, in the embodiment, the shaft 16 extends into the filter cylinder 8 through the filter cover 12, and a plurality of pairs of connecting plates 17 are arranged radially on the sidewall of the filter cylinder 8, and vertical scraping plates 18 are arranged at the ends of the connecting plates 17, the first filter screen 11 is flush with the inner wall of the filter cylinder 8, and the scraping plates 18 are in contact with the first filter screen 11, so that the impurities on the first filter screen 11 can be scraped off when the shaft 16 rotates, thereby ensuring the filtering effect of the first filter screen 11 and reducing the frequency of blockage. The shaft sleeve 23 is arranged at the center of the top end of the filter cover 12, and the shaft sleeve 23 is in rotatable sealing sleeve connection with the shaft 16, so as to prevent oil from leaking from the connection between the shaft 16 and the filter cover 12. The positioning sleeve 25 is arranged at the bottom of the filter cylinder 8, and the positioning column 26 is fixed to the inner bottom wall of the tank body 1, the positioning sleeve 25 is in sleeve connection with the top end of the positioning column 26, and the positioning sleeve 25 plays a role in positioning and stabilizing the filter cylinder 8, thereby preventing the filter cylinder 8 from shaking during operation.

[0031] Further, in the embodiment, the tank cover 2 is fixed to one side of the tank body 1, and the shunt ring 15 is arranged on the shaft 16, a shunt passage 27 is arranged in the shunt ring 15, the oil outlet nozzle 22 is arranged on the lower surface of the shunt ring 15, the oil outlet nozzle 22 is in communication with the shunt passage 27, and the oil outlet nozzle 22 is inclined towards the center of the second filter screen 13, the inlet pipe 3 is in communication with the shunt passage 27, and the oil is sprayed uniformly to the second filter screen 13 through the oil outlet nozzle 22 after entering the shunt passage 27 through the inlet pipe 3, thereby improving the filtering efficiency.

[0032] Working principle:

[0033] During operation of the utility model, the oil enters the shunt passage 27 of the shunt ring 15 through the inlet pipe 3, and is sprayed uniformly to the second filter screen 13 through the oil outlet nozzle 22, so as to be preliminarily filtered, and the larger impurities are intercepted on the second filter screen 13. The oil that has been preliminarily filtered is collected by the collecting hopper 19 and introduced into the filter cylinder 8, and is further finely filtered through the first filter screen 11 in the filter cylinder 8, and then enters the filter outlet cavity 10 and is discharged through the first discharge pipe 4; and the impurities filtered by the second filter screen 13 are left in the clamping cavity 9 and are discharged through the second discharge pipe 5.

[0034] During the filtering process, the motor 6 is started, the motor 6 drives the shaft 16 to rotate, the shaft 16 drives the branch plates 20 and the cleaning brushes 21 to rotate, the cleaning brushes 21 clean the second filter screen 13, so that the impurities fall into the clamping cavity 9, thereby preventing the second filter screen 13 from being blocked; at the same time, the shaft 16 drives the connecting plates 17 and the scraping plates 18 to rotate, the scraping plates 18 scrape off the impurities on the first filter screen 11, thereby ensuring the filtering effect of the first filter screen 11 and reducing the frequency of blockage, so that continuous and efficient filtering of the oil is realized.

[0035] All the technical features in the embodiment can be freely combined according to actual needs.

[0036] It should be pointed out finally that: the above only for the preferred embodiments of the utility model have, and do not for limiting the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. that is made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A petroleum filtering device for petroleum mining, comprising a tank body (1), characterized in that: A feed pipe (3) is provided at the top of the tank body (1), an inner cylinder (7) is vertically provided inside the tank body (1), the bottom end of the inner cylinder (7) is sealed with the bottom wall of the tank body (1), a clamping cavity (9) is formed between the inner cylinder (7) and the inner side wall of the tank body (1), and a filter cover (12) is provided on the top sealing cover of the inner cylinder (7), and a second filter screen (13) is embedded in the filter cover (12); A filter cylinder (8) is provided in the inner cylinder (7), a first filter screen (11) is embedded on the side wall of the filter cylinder (8), a filter cavity (10) is formed between the filter cylinder (8), the inner wall of the inner cylinder (7) and the bottom wall of the tank body (1), a first discharge pipe (4) and a second discharge pipe (5) are provided at the bottom end of the tank body (1), the first discharge pipe (4) is communicated with the filter cavity (10), and the second discharge pipe (5) is communicated with the clamping cavity (9).

2. The oil filtering device for oil mining according to claim 1, characterized in that: The filter cover (12) is provided with a cone cap structure, and the top of the filter cartridge (8) is provided with a receiving bucket (19). The oil is filtered through the second filter screen (13) and received by the receiving bucket (19) and introduced into the filter cartridge (8).

3. The oil filtering device for oil mining according to claim 2, characterized in that: A limiting boss (14) is provided on the inner wall of the top end of the inner cylinder (7), and a ring seat (24) is provided on the outer side of the top end of the receiving bucket (19). The ring seat (24) is sealed and engaged with the limiting boss (14).

4. The oil filtering device for oil mining according to claim 1, characterized in that: A tank cover (2) is provided at the top of the tank body (1), the feed pipe (3) is passed through the tank cover (2), the lower surface of the tank cover (2) is vertically rotatably connected to a shaft (16), a support plate (20) is connected to the side wall of the top end of the shaft (16), the support plate (20) is located above the filter cover (12), and the support plate (20) is parallel to the conical surface of the filter cover (12), a cleaning brush (21) is provided at the bottom of the support plate (20), and the cleaning brush (21) is in contact with the second filter screen (13), and a motor (6) for driving the shaft (16) to rotate is installed on the top of the tank cover (2).

5. The oil filtering device for oil mining according to claim 4, characterized in that: The bottom end of the shaft rod (16) passes through the filter cover (12) and extends into the filter barrel (8), and a plurality of pairs of connecting plates (17) are radially arranged on the side wall of the shaft rod (16) located in the filter barrel (8), and the ends of the plurality of pairs of connecting plates (17) are vertically connected with scrapers (18), the first filter screen (11) is flush with the inner wall of the filter barrel (8), and the scrapers (18) are in contact with the first filter screen (11), and a shaft sleeve (23) is provided at the center of the top end of the filter cover (12), and the shaft sleeve (23) is rotatably sealed and sleeved with the shaft rod (16).

6. The oil filtering device for oil mining according to claim 1, characterized in that: A positioning sleeve (25) is provided at the bottom of the filter cartridge (8), a positioning column (26) is fixed on the inner bottom wall of the tank body (1), and the positioning sleeve (25) is sleeve-fitted with the top end of the positioning column (26).

7. The oil filtering device for oil mining according to claim 4, characterized in that: A diverter ring (15) is fixed on the side of the tank cover (2) facing the inside of the tank body (1). The diverter ring (15) is sleeved on the shaft (16). A diverter channel (27) is provided in the diverter ring (15). An oil outlet nozzle (22) is provided on the lower surface of the diverter ring (15). The oil outlet nozzle (22) is connected to the diverter channel (27), and the oil outlet nozzle (22) is inclined toward the center of the second filter screen (13). One end of the feed pipe (3) extending into the tank body (1) is connected to the diverter channel (27).

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