Impurity filter for oil exploitation

Abstract

The utility model belongs to the field of oil exploitation, and discloses an impurity filter for oil exploitation, which comprises two box cover devices used for sealing and fixing, and further comprises an outer box device used for guiding oil to circulate and filter, and an inner box device used for filtering and collecting impurities in oil is arranged in the outer box device in a sliding manner; the outer box device comprises a machine box body, two oil conveying pipes are symmetrically arranged on the front portion and the rear portion of the machine box body, a discharging port is formed in one end of the machine box body, a pushing assembly is arranged at the end, away from the discharging port, of the machine box body, and a feeding port is formed in the top, close to the pushing assembly, of the machine box body. The inner box device comprises an inner box body, sealing rings are installed on the front circumference and the rear circumference of the inner box body respectively, and a filter screen is installed at the rear end of the inner box body. According to the impurity filter for oil exploitation, automatic replacement of the inner box body is achieved through the pushing assembly driven by the electric push rod, replacement of the filtering unit can be completed under the condition that the oil transportation process is not interrupted, the downtime is greatly shortened, and the operation efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of oil extraction, and in particular relates to an impurity filter for oil extraction. Background Technology

[0002] In the oil extraction process, impurity filters play a crucial role, effectively improving crude oil quality and protecting downstream equipment. During the extraction of oil from underground to the surface, solid impurities such as sand, mud, and metal fragments often become mixed in. These impurities not only affect the transportation and storage of crude oil but can also cause wear or blockages to pipelines, pumps, valves, and other equipment. Therefore, the proper application of impurity filters reduces oilfield maintenance costs and provides an important guarantee for efficient and safe production in the oil industry.

[0003] Comparing with Chinese Patent No. CN220899730U, a petroleum impurity filtration device is disclosed, including an oil pipeline. A drive motor is fixedly connected to the surface of the oil pipeline, and a rotating shaft is fixedly connected to the output end of the drive motor. A drive bevel gear is fixedly connected to the end of the rotating shaft away from the drive motor. A rotating rod is rotatably connected inside the oil pipeline, and a support frame is fixedly connected to the inner wall of the oil pipeline. A cleaning device is installed inside the support frame. The rotation of the worm gear drives the rotation of the worm wheel, which in turn drives the rotating shaft to rotate at the top of the support frame. The rotation of the rotating shaft drives the cleaning brush to rotate and sweep the impurities attached to the surface of the filter screen, preventing them from adhering to the surface of the filter screen and causing blockage, thereby improving the filtration effect of the filter screen. Moreover, the surface of the filter screen can be cleaned without disassembling it, improving the convenience of cleaning the filter screen of this petroleum impurity filtration device.

[0004] However, the aforementioned patent requires opening the sealing block when cleaning impurities. If the machine is not stopped during cleaning, oil leakage will occur. Furthermore, due to the presence of oil pressure, it is difficult to reinstall and reset the sealing block. If the machine is stopped during cleaning, oil filtration will be interrupted, reducing operational efficiency. Therefore, a new device needs to be designed. Utility Model Content

[0005] The purpose of this invention is to provide an impurity filter for oil extraction to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An impurity filter for oil extraction includes a sealed cover device, two of which are provided. It also includes an outer casing device for guiding oil flow and filtration, with an inner casing device for filtering and collecting impurities in the oil slidably installed inside the outer casing device. The outer casing device includes a housing with two symmetrically arranged oil pipes at its front and rear ends. Each oil pipe has a connecting flange at its end. One end of the housing has a discharge port, and the end of the housing away from the discharge port has a pushing component. The top of the housing near the pushing component has a feed inlet. Both the discharge port and the feed inlet are equipped with latches. A cover device is installed at each of the discharge port and the feed inlet. The inner casing device includes an inner casing with sealing rings installed on its front and rear circumferences, and a filter screen installed at its rear end.

[0008] Furthermore: the box cover device includes a sealing cover, a locking hook is fixedly installed on the side of the sealing cover, a sealing gasket is pasted on the bottom surface of the sealing cover, and a handle is installed on the upper surface of the sealing cover.

[0009] Furthermore: the bottom surface of the sealing cover is provided with a limiting boss, and the sealing gasket is distributed along the circumferential edge of the bottom surface of the sealing cover.

[0010] Furthermore: the pushing component includes an electric push rod installed at the end of the chassis, and a push plate is installed at the telescopic end of the electric push rod, the push plate being disposed inside the chassis.

[0011] Furthermore: the feed inlet and the discharge outlet are the same size, and each set of latches has two latches.

[0012] Furthermore: the inner box is a cube that runs through the front and back, and each outer side of the inner box is provided with a hand groove, and a handle is provided in the hand groove.

[0013] Furthermore, the handle is cylindrical and does not protrude from the outer side of the inner box.

[0014] Compared with existing technologies, the beneficial effects are:

[0015] 1. The automatic replacement of the inner tank is achieved by the push assembly driven by the electric push rod, which can complete the replacement of the filter unit without interrupting the oil delivery process, greatly reducing downtime and improving work efficiency; the push plate pushing mechanism ensures a smooth replacement process of the old and new inner tanks and maintains the stability of system operation.

[0016] 2. The inner box is designed to be slidable and replaceable. During maintenance, the inner box can be disassembled and assembled only through the inlet / outlet. The handle and hand groove design facilitate manual operation, reducing maintenance difficulty and labor intensity. The filter screen centrally intercepts impurities in the inner box, making it easy to remove and clean the whole box, avoiding secondary pollution. At the same time, the sealed structure prevents impurities from leaking out, meeting environmental protection requirements.

[0017] 3. Sealing rings are installed at the front and rear ends of the inner chamber. Combined with the sealing gasket and limiting boss design of the chamber cover, a multi-seal structure is formed to effectively prevent oil leakage and ensure the safety and environmental protection of the filtration process. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an impurity filter for petroleum extraction according to the present invention;

[0019] Figure 2 This is a schematic diagram of the outer casing device of the impurity filter used in petroleum extraction according to the present invention;

[0020] Figure 3 This is a top perspective view of the outer casing device of the impurity filter for oil extraction described in this utility model;

[0021] Figure 4 This is a schematic diagram of a tank cover device for an impurity filter in petroleum extraction according to the present invention;

[0022] Figure 5 This is a schematic diagram of the inner casing device of an impurity filter for petroleum extraction according to the present invention.

[0023] In the attached diagram, the following are the reference numerals: 101, casing; 102, oil pipe; 103, connecting flange; 104, discharge port; 105, latch; 106, feed port; 107, electric push rod; 108, push plate; 201, sealing cover; 202, sealing gasket; 203, locking hook; 204, handle; 205, limiting boss; 301, inner casing; 302, sealing ring; 303, filter screen; 304, hand groove; 305, handle. Detailed Implementation

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

[0025] Please see Figures 1-5An impurity filter for oil extraction includes a housing cover device for sealing and fixing, two housing cover devices are provided, and an outer housing device for guiding the flow of oil for filtration. An inner housing device for filtering and collecting impurities in the oil is slidably installed inside the outer housing device.

[0026] In this embodiment: the outer casing device includes a casing 101, with two oil supply pipes 102 symmetrically arranged at the front and rear of the casing 101. Each oil supply pipe 102 has a connecting flange 103 at its end. One end of the casing 101 has a discharge port 104, and the end of the casing 101 away from the discharge port 104 has a pushing component. The top of the casing 101 near the pushing component has a feeding port 106. Both the discharge port 104 and the feeding port 106 are equipped with latches 105. A casing cover device is installed at each of the discharge port 104 and the feeding port 106. The pushing component includes an electric push rod 107 installed at the end of the casing 101. A push plate 108 is installed at the telescopic end of the electric push rod 107, and the push plate 108 is located inside the casing 101. The size of the feeding port 106 and the discharge port 104 are... Each set of latches 105 has two latches; the oil supply pipe 102 is connected to the oil supply pipe 102 through the connecting flange 103. Oil flows into the machine housing 101 through the front oil supply pipe 102 and passes through the filter screen 303 at the rear end of the inner housing 301, and flows out from the rear oil supply pipe 102. The clean inner housing 301 is inserted into the machine housing 101 through the feed port 106. The electric push rod 107 quickly extends and pushes the clean inner housing 301 to push the inner housing 301 containing impurities through the push plate 108 until it is completely replaced. The inner housing 301 containing impurities is pushed to the discharge port 104 for easy removal of the inner housing 301 containing impurities. The latch 105 locks the hook 203, so that the sealing cover 201 is sealed to the machine housing 101 through the sealing gasket 202.

[0027] In this embodiment: the cover device includes a sealing cover 201, a locking hook 203 fixedly installed on the side of the sealing cover 201, a sealing gasket 202 pasted on the bottom surface of the sealing cover 201, and a handle 204 installed on the upper surface of the sealing cover 201; a limiting boss 205 is provided on the bottom surface of the sealing cover 201, and the sealing gasket 202 is distributed along the circumferential edge of the bottom surface of the sealing cover 201. The locking hook 203 is locked by the latch 105, so that the sealing cover 201 is sealed to the chassis 101 through the sealing gasket 202. The limiting boss 205 is used to compensate for the wall thickness of the chassis 101 and accurately position the inner box 301.

[0028] In this embodiment: the inner box device includes an inner box body 301, with sealing rings 302 installed on the front and rear circumferences of the inner box body 301, and a filter screen 303 installed at the rear end of the inner box body 301; the inner box body 301 is a cube that runs through the front and rear, and a hand groove 304 is provided on each outer side of the inner box body 301, with a handle 305 provided in the hand groove 304; the handle 305 is cylindrical and does not protrude from the outer side of the inner box body 301; oil passes through the filter screen 303 at the rear end of the inner box body 301, and impurities in the oil are blocked and filtered by the filter screen 303 and left in the inner box body 301; the inner box body 301 is sealed with the front and rear inner walls of the casing 101 by the sealing rings 302 to prevent leakage, and the handle 305 in the hand groove 304 facilitates the taking and putting in of the inner box body 301.

[0029] Working principle: The oil supply pipe 102 is connected to the oil supply line via the connecting flange 103. Oil flows into the machine housing 101 through the front oil supply pipe 102, passes through the filter screen 303 at the rear end of the inner housing 301, and flows out from the rear oil supply pipe 102. Impurities in the oil are filtered out by the filter screen 303 and remain inside the inner housing 301. When the filter screen 303 needs maintenance and replacement, first loosen the latch 105 and the locking hook 203 at the feed port 106, then grasp the handle 204, open the sealing cover 201, insert the clean inner housing 301 into the machine housing 101 through the feed port 106, then close the sealing cover 201 and lock the locking hook 203 with the latch 105. The sealing cap 201 is sealed to the housing 101 by the sealing gasket 202, sealing the feed port 106. Then, the electric push rod 107 quickly extends and pushes the clean inner housing 301 against the inner housing 301 containing impurities through the push plate 108 until it is completely replaced. The inner housing 301 containing impurities is pushed to the discharge port 104, while the clean inner housing 301 is sealed to the front and rear inner walls of the housing 101 by the sealing ring 302, allowing oil to continue to enter and exit from the oil pipe 102 and pass through the inner housing 301 without leakage. Finally, the sealing cap 201 at the discharge port 104 is opened and closed according to the above steps, and the inner housing 301 containing impurities can be removed by the handle 305 in the hand groove 304.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An impurity filter for oil extraction, comprising a tank cover device for sealing and fixing, wherein two tank cover devices are provided, characterized in that: It also includes an outer casing device for guiding the flow of oil for filtration, wherein an inner casing device for filtering and collecting impurities in the oil is slidably installed inside the outer casing device. The outer casing device includes a casing (101), with two oil supply pipes (102) symmetrically arranged at the front and rear of the casing (101). The ends of the oil supply pipes (102) are provided with connecting flanges (103). One end of the casing (101) is provided with a discharge port (104). The end of the casing (101) away from the discharge port (104) is provided with a pushing component. The top of the casing (101) near the pushing component is provided with a feeding port (106). Both the discharge port (104) and the feeding port (106) are provided with latches (105). A box cover device is installed at the discharge port (104) and the inlet port (106); The inner box device includes an inner box body (301), with sealing rings (302) installed on the front and rear circumferences of the inner box body (301) respectively, and a filter screen (303) installed at the rear end of the inner box body (301).

2. The impurity filter for oil extraction according to claim 1, characterized in that: The box cover device includes a sealing cover (201), a locking hook (203) is fixedly installed on the side of the sealing cover (201), a sealing gasket (202) is pasted on the bottom surface of the sealing cover (201), and a handle (204) is installed on the upper surface of the sealing cover (201).

3. The impurity filter for oil extraction according to claim 2, characterized in that: The bottom surface of the sealing cover (201) is provided with a limiting boss (205), and the sealing gasket (202) is distributed along the circumferential edge of the bottom surface of the sealing cover (201).

4. The impurity filter for oil extraction according to claim 1, characterized in that: The pushing component includes an electric push rod (107) installed at the end of the chassis (101), and a push plate (108) is installed at the telescopic end of the electric push rod (107), and the push plate (108) is disposed inside the chassis (101).

5. A petroleum extraction impurity filter according to claim 4, characterized in that: The feed inlet (106) and the discharge outlet (104) are the same size, and each set of latches (105) has two latches.

6. The impurity filter for oil extraction according to claim 1, characterized in that: The inner box (301) is a cube that runs through the front and back. Each outer side of the inner box (301) is provided with a hand groove (304), and a handle (305) is provided in the hand groove (304).

7. A petroleum extraction impurity filter according to claim 6, characterized in that: The handle (305) is cylindrical and does not protrude from the outer side of the inner box (301).

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