Cleaning device for oil field filter element

Abstract

The utility model relates to the technical field of filter cleaning, and discloses a cleaning device for an oil field filter element, which comprises a filter device main body, a flushing device main body is arranged at the top of the filter device main body, the filter device main body comprises a shell, and a filter element main body is arranged on the inner side of the shell. Supporting frames are fixedly connected to the top and the bottom of the inner side of the filter element body, a motor is fixedly connected to the bottom of the bottom supporting frame, a cleaning rod is fixedly connected to an output shaft of the motor, and a cleaning brush is fixedly connected to the outer side of the cleaning rod. The cleaning brush is arranged on the inner wall of the filter element main body, so that particulate impurities attached to the inner wall of the filter element main body are cleaned by the cleaning brush, the impurities suspend on the inner side of the filter element main body and are discharged through the waste discharge pipe under the flushing action of the cleaning liquid, and compared with a device only for flushing, the cleaning is more thorough, and the cleaning period can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of filter cleaning, and more specifically to a cleaning device for an oilfield filter element. Background Art

[0002] Oilfield exploitation refers to the process of extracting oil from underground reservoirs. Before oilfield exploitation, exploration work is required to determine the location, size and characteristics of potential reservoirs through geological exploration technology. Once the location of the oil field is determined, development work will be carried out, including the construction of well networks and the installation of production equipment. Drilling is one of the key links in oilfield exploitation, and the drill bit is sent into the underground reservoir through drilling equipment. The method and depth of drilling depend on geological conditions and reservoir characteristics. The extracted oil contains a large amount of impurities and needs to be filtered with a filter. When there are too many impurities inside the filter, the filter element is generally cleaned by backwashing.

[0003] The flushing liquid enters the filter from the water inlet, passes through the filter element assembly to filter out impurities, and then the clean water is discharged from the waste pipe. The so-called backwashing is to use an external high-pressure water pump to pump the flushing liquid into the interior of the filter element, and then the cleaning liquid carries the impurities and is discharged through the waste pipe.

[0004] However, during field applications, due to the long-term operation of the filter element, the impurities are subjected to greater pressure from the oil, and there are more impurities such as fixed particle suspension and sludge. After a long period of operation, the impurities inside the filter are compacted by pressure and are not easily backwashed out. The cleaning effect is poor and the cleaning frequency is high, which affects normal oil extraction work. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a cleaning device for an oilfield filter element to solve the problems existing in the above-mentioned background technology.

[0006] The utility model provides the following technical solution: a cleaning device for an oilfield filter element, comprising a filter device main body, a flushing device main body is installed on the top of the filter device main body, the filter device main body comprises a shell, a discharge pipe is fixedly connected to the outer side of the shell, a bottom plate is fixedly connected to the bottom of the shell, a filter element main body is installed on the inner side of the shell, the top and bottom of the inner side of the filter element main body are fixedly connected to a support frame, a motor is fixedly connected to the bottom of the support frame, a cleaning rod is fixedly connected to the output shaft of the motor, and a cleaning brush is fixedly connected to the outer side of the cleaning rod.

[0007] Furthermore, the flushing device body includes a flushing pump fixedly connected to the top of the shell, the top of the flushing pump is fixedly connected to a liquid inlet pipe, the flushing pump is fixedly connected to a liquid discharge pipe around, and a flushing control valve is installed on the liquid discharge pipe.

[0008] Furthermore, a waste discharge pipe is fixedly connected to the bottom of the base plate, a waste discharge control valve is installed on the outer side of the waste discharge pipe, a feed pipe is fixedly connected to the outer side of the waste discharge pipe, and a feed control valve is installed on the outer side of the feed pipe.

[0009] Furthermore, a sealing ring is fixedly connected to the top of the inner side of the waste discharge pipe, and the waste discharge pipe is movably sleeved with the filter element body.

[0010] Furthermore, a fixed block is fixedly connected to the bottom of the outer side of the filter element body, a cylindrical rod is movably sleeved on the top of the fixed block, a cylindrical block is fixedly connected to the top of the cylindrical rod, a buffer spring is arranged on the outer side of the cylindrical rod, the buffer spring is located between the fixed block and the cylindrical block, and the bottom of the cylindrical rod is fixedly connected to the top of the base plate.

[0011] Furthermore, support columns are fixedly connected to the four sides of the bottom of the base plate, a mounting plate is fixedly connected to the bottom of the support columns, and mounting holes are opened around the top of the mounting plate.

[0012] Technical effects and advantages of the utility model:

[0013] 1. The utility model is provided with a flushing device body, a motor and a cleaning brush. When one of the filter element bodies needs to be cleaned, the corresponding feed control valve is closed and the corresponding flushing control valve and waste control valve are opened, and the flushing pump and the motor are started at the same time. The cleaning liquid enters through the liquid inlet pipe, and then enters the inner side of the filter element body through the liquid discharge pipe of the opened flushing control valve. The motor drives the cleaning rod to rotate, so that the cleaning brush cleans the particulate impurities attached to the inner wall of the filter element body, so that the impurities are suspended on the inner side of the filter element body, and are discharged through the waste discharge pipe under the flushing action of the cleaning liquid. Compared with a device that only performs flushing, the cleaning is more thorough and the cleaning cycle can be extended.

[0014] 2. The utility model is provided with a plurality of filter core bodies, so that other filter core bodies which are not being cleaned can continue to perform filtering work without affecting normal oil production work, and the filtered oil is discharged through the discharge pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 This is a schematic diagram of the main structure of the filtering device of the utility model.

[0017] Figure 3 This is a schematic diagram of the main structure of the filter element of the utility model.

[0018] Figure 4 It is a schematic diagram of the main structure of the flushing device of the utility model.

[0019] Figure 5 It is a schematic diagram of the waste discharge pipe structure of the utility model.

[0020] The accompanying drawings are marked as follows: 1. Filter device body; 101. Shell; 102. Bottom plate; 103. Support column; 104. Mounting plate; 141. Mounting hole; 105. Discharge pipe; 106. Filter element body; 161. Support frame; 162. Motor; 163. Cleaning rod; 164. Cleaning brush; 165. Fixed block; 166. Cylindrical rod; 167. Cylindrical block; 168. Buffer spring; 107. Waste discharge pipe; 171. Waste discharge control valve; 172. Sealing ring; 108. Feed pipe; 181. Feed control valve; 2. Flushing device body; 201. Flushing pump; 202. Liquid inlet pipe; 203. Liquid discharge pipe; 204. Flushing control valve. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The cleaning device for an oilfield filter element involved in the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0022] Reference Figure 1-Figure 5 The utility model provides a cleaning device for an oilfield filter element, comprising a filter device body 1, a flushing device body 2 is installed on the top of the filter device body 1, the filter device body 1 comprises a shell 101, a discharge pipe 105 is fixedly connected to the outer side of the shell 101, a bottom plate 102 is fixedly connected to the bottom of the shell 101, a filter element body 106 is installed on the inner side of the shell 101, a support frame 161 is fixedly connected to the top and bottom of the inner side of the filter element body 106, a motor 162 is fixedly connected to the bottom of the bottom support frame 161, a cleaning rod 163 is fixedly connected to the output shaft of the motor 162, a cleaning brush 164 is fixedly connected to the outer side of the cleaning rod 163, a waste pipe 107 is fixedly connected to the bottom of the bottom plate 102, a waste control valve 171 is installed on the outer side of the waste pipe 107, a feed pipe 108 is fixedly connected to the outer side of the waste pipe 107, and a feed control valve 181 is installed on the outer side of the feed pipe 108.

[0023] In the embodiment of the present application, when the filter device body 1 is in a normal working state, the flushing control valve 204 and the waste control valve 171 are closed, and the feed control valve 181 is open. When one of the filter element bodies 106 needs to be cleaned, the corresponding feed control valve 181 is closed and the corresponding flushing control valve 204 and the waste control valve 171 are opened, and the flushing pump 201 and the motor 162 are started at the same time. The cleaning liquid enters through the liquid inlet pipe 202, and then enters the inner part of the filter element body 106 through the liquid discharge pipe 203 of the open flushing control valve 204. On the other hand, the motor 162 drives the cleaning rod 163 to rotate, so that the cleaning brush 164 cleans the particulate impurities attached to the inner wall of the filter element main body 106, so that the impurities are suspended on the inner side of the filter element main body 106, and are discharged through the waste pipe 107 under the flushing action of the cleaning liquid. Compared with the device which only performs flushing, the cleaning is more thorough, the cleaning cycle can be extended, and other filter element main bodies 106 which are not being cleaned can continue to perform filtering work, without affecting the normal oil extraction work, and the filtered oil is discharged through the discharge pipe 105.

[0024] In a preferred embodiment, the flushing device body 2 includes a flushing pump 201 fixedly connected to the top of the shell 101, the top of the flushing pump 201 is fixedly connected to a liquid inlet pipe 202, the flushing pump 201 is fixedly connected to a liquid discharge pipe 203 around it, a flushing control valve 204 is installed on the liquid discharge pipe 203, and the bottom of the flushing control valve 204 is fixedly connected to the top of the filter element body 106.

[0025] In a preferred embodiment, a sealing ring 172 is fixedly connected to the top of the inner side of the waste pipe 107, and the waste pipe 107 is movably connected to the filter element body 106. The sealing ring 172 can play a sealing role to prevent oil and impurities from entering the interior of the housing 101 through the gap between the waste pipe 107 and the filter element body 106.

[0026] In a preferred embodiment, a fixed block 165 is fixedly connected to the bottom of the outer side of the filter element body 106, a cylindrical rod 166 is movably sleeved on the top of the fixed block 165, a cylindrical block 167 is fixedly connected to the top of the cylindrical rod 166, a buffer spring 168 is arranged on the outer side of the cylindrical rod 166, the buffer spring 168 is located between the fixed block 165 and the cylindrical block 167, the bottom of the cylindrical rod 166 is fixedly connected to the top of the base plate 102, when the filter element body 106 is subjected to an instantaneous excessive pressure of the collected oil, the filter element body 106 drives the fixed block 165 to deflect upward, the buffer spring 168 is compressed, and can play a buffering role.

[0027] In a preferred embodiment, support columns 103 are fixedly connected to the bottom of the base plate 102 on all sides, and the bottom of the support columns 103 is fixedly connected to the mounting plate 104. Mounting holes 141 are opened around the top of the mounting plate 104, and the mounting plate 104 is fixed to the support table surface by bolts.

[0028] The working principle of the utility model is as follows: when the filter device body 1 is in a normal working state, the flushing control valve 204 and the waste control valve 171 are closed, and the feed control valve 181 is open. When one of the filter element bodies 106 needs to be cleaned, the corresponding feed control valve 181 is closed and the corresponding flushing control valve 204 and the waste control valve 171 are opened, and the flushing pump 201 and the motor 162 are started at the same time, and the cleaning liquid enters through the liquid inlet pipe 202, and then enters the filter element body 106 through the liquid discharge pipe 203 of the flushing control valve 204. On the inside, the motor 162 drives the cleaning rod 163 to rotate, so that the cleaning brush 164 cleans the particulate impurities attached to the inner wall of the filter element main body 106, so that the impurities are suspended on the inner side of the filter element main body 106, and are discharged through the waste pipe 107 under the flushing action of the cleaning liquid. Compared with the device which only performs flushing, the cleaning is more thorough, the cleaning cycle can be extended, and other filter element main bodies 106 which are not being cleaned can continue to perform filtering work, without affecting normal oil extraction work, and the filtered oil is discharged through the discharge pipe 105.

[0029] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0030] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0031] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A cleaning device for an oilfield filter element, comprising a filter device body (1), characterized in that: A flushing device body (2) is installed on the top of the filter device body (1), and the filter device body (1) comprises a shell (101), a discharge pipe (105) is fixedly connected to the outer side of the shell (101), a bottom plate (102) is fixedly connected to the bottom of the shell (101), a filter element body (106) is installed on the inner side of the shell (101), the top and bottom of the inner side of the filter element body (106) are fixedly connected to a support frame (161), the bottom of the support frame (161) is fixedly connected to a motor (162), the output shaft of the motor (162) is fixedly connected to a cleaning rod (163), and the outer side of the cleaning rod (163) is fixedly connected to a cleaning brush (164).

2. The cleaning device for oilfield filter element according to claim 1, characterized in that: The flushing device body (2) comprises a flushing pump (201) fixedly connected to the top of the housing (101); a liquid inlet pipe (202) is fixedly connected to the top of the flushing pump (201); a liquid discharge pipe (203) is fixedly connected around the flushing pump (201); and a flushing control valve (204) is installed on the liquid discharge pipe (203).

3. The cleaning device for oilfield filter element according to claim 1, characterized in that: A waste discharge pipe (107) is fixedly connected to the bottom of the base plate (102), and a waste discharge control valve (171) is installed on the outer side of the waste discharge pipe (107). A feed pipe (108) is fixedly connected to the outer side of the waste discharge pipe (107), and a feed control valve (181) is installed on the outer side of the feed pipe (108).

4. The cleaning device for oilfield filter element according to claim 3, characterized in that: A sealing ring (172) is fixedly connected to the top of the inner side of the waste discharge pipe (107), and the waste discharge pipe (107) is movably sleeved with the filter element body (106).

5. The cleaning device for oilfield filter element according to claim 1, characterized in that: The bottom of the outer side of the filter element body (106) is fixedly connected to a fixed block (165), the top of the fixed block (165) is movably sleeved with a cylindrical rod (166), the top of the cylindrical rod (166) is fixedly connected to a cylindrical block (167), a buffer spring (168) is provided on the outer side of the cylindrical rod (166), the buffer spring (168) is located between the fixed block (165) and the cylindrical block (167), and the bottom of the cylindrical rod (166) is fixedly connected to the top of the bottom plate (102).

6. The cleaning device for oilfield filter element according to claim 1, characterized in that: The bottom of the base plate (102) is fixedly connected to support columns (103) on all sides, the bottom of the support columns (103) is fixedly connected to a mounting plate (104), and the top of the mounting plate (104) is provided with mounting holes (141) on all sides.

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