Fracturing fluid filtering device

Abstract

The invention relates to the technical field of fracturing fluid filtering, and discloses a fracturing fluid filtering device which comprises a filtering cavity, a liquid inlet is fixedly connected to the middle of the top end of the filtering cavity, a collecting cavity is fixedly connected to the bottom end of the filtering cavity, and the filtering cavity, the liquid inlet and the collecting cavity communicate with one another; the filter further comprises an anti-blocking mechanism, the anti-blocking mechanism comprises an annular limiting block fixed to the top of the inner wall of the filter cavity, the annular limiting block is rotationally connected with a filter screen, the filter screen is of a bowl-shaped structure with an upward opening, and the upper end of the filter screen is evenly and slidably connected with two sets of scraping plates in an abutting mode. By means of the material removing mechanism and the vibration mechanism, particles blocked at the filter screen can be gradually collected to the middle of the filter screen, the particles can be intermittently pushed to the rubber protrusions in cooperation with the material removing mechanism, under the action of the transmission component, the jacking particles are extracted under linkage of the adsorption assembly and the material removing mechanism, and the particles are sucked out. The filtering effect of the equipment is effectively improved, and the maintenance frequency of the equipment is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of fracturing fluid filtration, and in particular to a fracturing fluid filtration device. Background Art

[0002] Fracturing technology is a major measure to increase oil well production and is widely used in various oil fields. The main function of fracturing fluid is to create fractures and carry sand. The flowback fracturing waste fluid generated during the oil well fracturing process has complex pollutant composition, high concentration, high viscosity and difficulty in treatment. Moreover, the flowback fracturing waste fluid is one of the most difficult wastewaters to treat in oil fields. If it is not treated and directly enters the gathering and transportation process, it will seriously interfere with the subsequent processes and seriously affect the oil field production.

[0003] Due to its own characteristics, fracturing fluid can easily cause clogging of the filter screen under the action of gravity alone, resulting in a significant decrease in filtration efficiency. In order to avoid clogging, manual or equipment scraping is required to achieve effective filtration of the returned fracturing fluid.

[0004] However, there are some particulate matter in the returned filtrate, which gradually accumulates on the top of the filter as the filtration time increases, reducing the filtration effect of the filter. The conventional operation method is to disassemble the filter for cleaning and maintenance, which will delay the normal filtration work and require manual cleaning and maintenance periodically, increasing the maintenance cost. In order to improve the automatic filtration effect and effectively remove the particulate matter accumulated inside, a fracturing fluid filtration device is proposed to solve the above-mentioned problems. Summary of the invention

[0005] In order to solve the technical problem in the background technology that the fracturing fluid will accumulate over time when it is returned, and there is a lack of effective cleaning of the particles without delaying the normal filtering operation, the present invention provides a fracturing fluid filtering device.

[0006] The present invention is implemented by the following technical solution: a fracturing fluid filtering device, comprising:

[0007] A filter cavity, wherein a liquid inlet is fixedly connected to the middle of the top of the filter cavity, and a collecting cavity is fixedly connected to the bottom of the filter cavity, wherein the filter cavity, the liquid inlet and the collecting cavity are connected;

[0008] Also includes:

[0009] The anti-clogging mechanism includes an annular stopper fixed to the top of the inner wall of the filter chamber, the annular stopper is rotatably connected to a filter screen, the filter screen is a bowl-shaped structure with an opening upward, and two groups of scrapers are evenly slidably abutted on the upper end of the filter screen, and the tops of the two groups of scrapers are fixedly connected to the inner wall of the filter chamber;

[0010] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion.

[0011] Through the above technical scheme, the anti-clogging mechanism is used in conjunction with the vibration component to effectively filter the fracturing fluid and avoid clogging at the filter. With the action of the vibration component, the particles blocked at the filter can be concentrated, and under the action of the removal mechanism and the adsorption component, the particles can be automatically adsorbed and collected for processing, thereby reducing the maintenance frequency of the equipment and ensuring the filtration efficiency of the equipment.

[0012] As a further improvement of the above solution, the vibration component includes a circular ring block fixedly connected to the outer wall of the filter screen, the outer wall of the circular ring block is evenly and fixedly connected with a circular protrusion, and the circular protrusion is evenly and slidably abutted with two groups of rotating blocks.

[0013] As a further improvement of the above scheme, the tops of the two groups of rotating blocks are fixedly connected with rotating rods, the tops of the two groups of rotating rods are rotatably connected with top plates, and the two groups of rotating rods are horizontally slidably connected to the top of the filter cavity, and the inner sides of the two groups of top plates are elastically connected to the middle of the top of the filter cavity with springs.

[0014] Through the above technical solution, the circular protrusion and the sliding of the rotating block can cooperate with the spring to rebound and shrink, so that the filter can vibrate periodically, so that the particles can be centered in the bowl-shaped structure for unified processing.

[0015] As a further improvement of the above scheme, the adsorption assembly includes a belt pulley 1 fixedly connected to the outer wall of the rotating shaft, a belt is arranged on the outer side of the belt pulley 1, a belt is arranged on the other side of the belt, and a spherical protrusion is fixedly connected to the inner wall of the belt pulley 2.

[0016] As a further improvement of the above scheme, the spherical protrusion is slidably connected with a circulation guide rotating rod, and the bottom end of the circulation guide rotating rod is fixedly connected with a circular plate, the circular plate is vertically slidably connected to the inner wall of the vacuum chamber, and a one-way valve is arranged at the circular plate, and a support sleeve is rotatably connected to the middle of the second bottom end of the belt pulley, the bottom ends of both sides of the support sleeve are fixedly connected with the vacuum chamber, a rubber ring is arranged at the sliding position between the vacuum chamber and the circular plate, and the bottom end of the vacuum chamber is fixedly connected to the top of the collection chamber.

[0017] Through the above technical scheme, the circulation guide rotating rod can be pulled vertically back and forth by utilizing the sliding of the spherical protrusion and the circulation guide rotating rod, and under the action of the one-way valve, the vacuum pipe can be used to evacuate the conveying pipe, and the collected particles can be cleaned uniformly by utilizing the adsorption force.

[0018] As a further improvement of the above scheme, an exhaust pipe is fixedly connected to the lower part of the outer wall of the exhaust cavity, and the exhaust pipe is connected to the bottom end of the inner wall of the exhaust cavity. The other end of the exhaust pipe is inserted and connected with a delivery pipe. One end of the delivery pipe passes through the top of the filter cavity and is fixedly connected to one side of the bottom end of the baffle, and the opening of one end of the delivery pipe is located directly above the top barrel. The delivery pipe is fixedly connected with a rubber protrusion, and the bottom end of the delivery pipe is inserted and connected with a collection tank.

[0019] Through the above technical solution, the rubber protrusion is made of flexible material and can abut against the top of the top barrel to form a temporary sealing state, which is conducive to the extraction of particulate matter and finally falls into the collection tank along the conveying pipe.

[0020] As a further improvement of the above solution, a groove is provided at the top of the ejector barrel, a conical protrusion is fixedly connected to the middle of the groove, and water leakage holes are evenly and obliquely provided around the bottom of the groove.

[0021] Through the above technical solution, the groove is conducive to the aggregation of particles, and the leakage hole is convenient for the fracturing fluid to flow out, thereby preventing the adsorption component from absorbing too much fracturing fluid.

[0022] As a further improvement of the above scheme, an inclined plate is fixedly connected to the bottom end of one side of the filter cavity, the inclined plate is set at a slope, and a discharge port is opened at the bottom end of the inclined plate, the discharge port is connected to the connection point of the collection cavity, and a waterproof cover is fixedly connected to the middle part of the inclined plate, the waterproof cover is located directly below the sleeve, and the rotating shaft rotates in the middle part of the top end of the waterproof cover.

[0023] Through the above technical solution, the filtered fracturing fluid can be guided into the discharge port by utilizing the slope setting of the inclined plate, and finally fall into the collection box, and the waterproof cover can effectively block the falling fracturing fluid.

[0024] As a further improvement of the above solution, a heat sink is fixedly connected to the vacant space between the filtering cavity and the collecting cavity, and ventilation holes are evenly opened on the outer wall of the heat sink.

[0025] The above technical solution facilitates heat dissipation during operation of the motor and increases the service life of the motor.

[0026] As a further improvement of the above solution, a collection box is horizontally slidably connected to the collection cavity, and a handle is fixedly connected to the outer end of the collection box.

[0027] Through the above technical solution, it is convenient to process the filtered fracturing fluid from the collection box, and the collection box can also be replaced by a delivery pipeline to facilitate the delivery of the fracturing fluid.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] (i) The present invention utilizes the cooperation of the scraper and the filter screen to make the fracturing fluid to be filtered fall along the filter screen, and the filter holes blocked by the falling of the fracturing fluid can be cleaned by the scraper, so that the filter screen can continuously filter the fracturing fluid, and the filtered fracturing fluid can be collected in the collection box along the inclined plate and the discharge port.

[0030] (ii) The present invention utilizes a material removal mechanism and a vibration mechanism to gradually collect the particulate matter blocked at the filter to the middle of the filter, and cooperates with the material removal mechanism to intermittently push the particulate matter to the rubber protrusion. Under the action of the transmission component, the adsorption component and the material removal mechanism are linked to each other, thereby extracting the lifted particulate matter, effectively improving the filtering effect of the equipment and reducing the maintenance frequency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the overall structure of a fracturing fluid filtering device provided in Example 1 of the present invention;

[0032] Figure 2 It is an exploded schematic diagram of the overall structure of the present invention;

[0033] Figure 3 It is a schematic structural diagram of a side cross-section of the present invention;

[0034] Figure 4 It is a structural schematic diagram of a formal cross section of the present invention;

[0035] Figure 5 It is a schematic diagram of the internal structure connection state of the present invention;

[0036] Figure 6 It is a structural schematic diagram of the anti-blocking mechanism and the material removal mechanism of the present invention;

[0037] Figure 7 It is a schematic diagram of the local structure of the adsorption component of the present invention;

[0038] Figure 8 For the present invention Figure 6 A schematic diagram of the enlarged structure at point A in the middle.

[0039] Description of main symbols:

[0040] 1. Filter cavity; 2. Liquid inlet; 3. Collecting cavity; 4. Collecting box; 5. Heat sink; 6. Inclined plate; 7. Feeding port; 8. Waterproof cover; 9. Annular limit block; 10. Filter screen; 11. Circular ring block; 12. Rotating block; 13. Rotating rod; 14. Top plate; 15. Spring; 16. Scraper; 17. Vertical rod; 18. Baffle; 19. Positioning rod; 20. Sliding sleeve block; 21. Ejecting barrel; 22. Guide groove; 23. Sliding rod; 24. Sleeve; 25. Snap-in block; 26. Rotating plate; 27. Rotating shaft; 28. Motor; 29. ​​Belt pulley 1; 30. Belt; 31. Belt pulley 2; 32. Circulation guide rotating rod; 33. Support sleeve; 34. Exhaust cavity; 35. Exhaust pipe; 36. Delivery pipe; 37. Rubber protrusion. DETAILED DESCRIPTION

[0041] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0042] Example 1: Please combine Figure 1 , Figure 2 , Figure 5 and Figure 6 The present embodiment provides a fracturing fluid filtering device, comprising a filtering chamber 1, a liquid inlet 2 is fixedly connected to the middle of the top of the filtering chamber 1, and a collecting chamber 3 is fixedly connected to the bottom of the filtering chamber 1, wherein the filtering chamber 1, the liquid inlet 2 and the collecting chamber 3 are connected;

[0043] The fracturing fluid filtering device proposed in this scheme also includes an anti-clogging mechanism, which includes an annular limit block 9 fixed to the top of the inner wall of the filter chamber 1, and the annular limit block 9 is rotatably connected to a filter screen 10. The filter screen 10 is a bowl-shaped structure with an opening upward. The upper end of the filter screen 10 is slidably abutted with two scrapers 16, and the tops of the two scrapers 16 are fixedly connected to the inner wall of the filter chamber 1. As an optional embodiment of the present invention, the two scrapers 16 are distributed at equal intervals along the circumference of the filter screen 10.

[0044] The fracturing fluid filtering device also includes a material removal mechanism, which includes a sleeve 24 fixedly installed in the middle of the bottom end of the filter screen 10, the inner wall of the sleeve 24 is fixedly connected to a slide bar 23, a material ejection barrel 21 is movably arranged in the sleeve 24, an annular guide groove 22 is provided at the lower part of the outer wall of the material ejection barrel 21, the guide groove 22 is slidably connected to the slide bar 23, a sliding sleeve block 20 is symmetrically fixedly connected to the top of the material ejection barrel 21, two groups of sliding sleeve blocks 20 are vertically slidably connected to the positioning rods 19, the outer ends of the two positioning rods 19 are fixedly connected to the vertical rods 17, and the bottom ends of the two vertical rods 17 are connected to the vertical rods 17. The scrapers 16 are fixedly connected to each other, and the top ends of the two vertical rods 17 are fixedly connected with baffles 18. The baffles 18 are bowl-shaped structures with an opening facing downward. The bottom ends of the sleeves 24 are symmetrically fixedly connected with clamping blocks 25, and two sets of clamping blocks 25 are inserted with rotating plates 26. The middle part of the rotating plate 26 is fixedly connected with a rotating shaft 27. The top of the rotating shaft 27 is rotatably connected to the top barrel 21, and the bottom end of the rotating shaft 27 is fixedly connected with a motor 28. Specifically, the output shaft of the motor 28 is connected to the rotating shaft 27 to transmit torque, and the motor 28 is fixedly connected to the top of the collecting chamber 3.

[0045] The implementation principle of a fracturing fluid filtering device in the embodiment of the present application is:

[0046] The fracturing fluid to be filtered is poured into the liquid inlet 2. The fracturing fluid slides downward under the action of gravity and is then guided to the filter 10 by the baffle 18. The motor 28 is started to drive the rotating shaft 27 and the rotating plate 26 to rotate. The rotating plate 26 is connected with the clamping block 25 to drive the sleeve 24 to drive the filter 10 to rotate under the rotation of the annular limit block 9, so that the fracturing fluid falling on the top of the filter 10 is scraped off the blocked part of the filter 10 as the filter 10 rotates and scrapes with the bottom end of the scraper 16, so that excess particles are attached to the top of the filter 10.

[0047] Example 2: Combination Figure 2-Figure 8 Based on Example 1, this embodiment is further improved as follows: the material removal mechanism proposed in this scheme also includes a vibration component and an adsorption component.

[0048] The vibration assembly includes a circular ring block 11 fixedly connected to the outer wall of the filter screen 10, and the outer wall of the circular ring block 11 is evenly distributed with circular protrusions. Specifically, as the filter screen 10 rotates, both sides of the circular protrusions can intermittently slide and abut against rotating blocks 12, and the rotating blocks are divided into two groups.

[0049] The tops of the two sets of rotating blocks 12 are fixedly connected with rotating rods 13, and the tops of the two sets of rotating rods 13 are rotatably connected with top plates 14. The two sets of rotating rods 13 pass through the top of the filter cavity 1 and are horizontally slidably connected thereto. Springs 15 are elastically connected between the two sets of top plates 14 and the filter cavity 1.

[0050] The implementation principle of a fracturing fluid filtering device in this embodiment is:

[0051] Since the filter screen 10 is in the shape of a bowl with an opening downward, as the filter screen 10 rotates, the circular protrusion on the outer wall of the annular block 11 will push the rotating block 12 to slide horizontally outward, and after the circular protrusion separates from the rotating block 12, the rotating block 12 can be pulled to impact the annular block 11 under the elastic action of the spring 15, so as to drive the filter screen 10 to vibrate, which is beneficial to the filtration of the fracturing fluid, and the particles in the fracturing fluid can be gathered to the middle of the filter screen 10 by relying on the vibration, so as to facilitate the removal of materials at a later time.

[0052] Example 3: Combination Figure 2-Figure 8 Based on Example 1 and Example 2, this embodiment is further improved in that:

[0053] The adsorption component includes a rotating shaft 27 with a belt pulley 29 fixedly connected to the outer wall thereof, a belt 30 is provided on the outer cover of the belt pulley 29, a belt pulley 2 31 is provided on the other side of the belt 30, and a spherical protrusion is fixedly connected to the inner wall of the belt pulley 2 31.

[0054] The spherical protrusion is slidably connected to a circulation guide rotating rod 32, and a circular plate is fixedly connected to the bottom end of the circulation guide rotating rod 32. The circular plate is vertically slidably connected to the inner wall of the vacuum chamber 34, and a one-way valve is arranged at the circular plate. Specifically, the flow direction of the one-way valve here is that the vacuum pipe 35 flows toward the vacuum chamber 34. The middle part of the bottom end of the belt pulley 31 is rotatably connected to a support sleeve 33, and the bottom ends of both sides of the support sleeve 33 are fixedly connected to the vacuum chamber 34. A rubber ring is arranged at the sliding position between the vacuum chamber 34 and the circular plate, and the bottom end of the vacuum chamber 34 is fixedly connected to the top of the collection chamber 3.

[0055] An exhaust pipe 35 is fixedly connected to the lower part of the outer wall of the exhaust cavity 34, and the exhaust pipe 35 is communicated with the bottom end of the inner wall of the exhaust cavity 34. A delivery pipe 36 is inserted at the other end of the exhaust pipe 35. One end of the delivery pipe 36 passes through the top of the filter cavity 1 and is fixedly connected to one side of the bottom end of the baffle 18, and one end of the delivery pipe 36 is opened and located directly above the top barrel 21. A rubber protrusion 37 is fixedly connected to one end of the delivery pipe 36, and the other end of the delivery pipe 36 is inserted and connected to a collection tank.

[0056] A groove is formed at the top of the ejector barrel 21, a conical protrusion is fixedly connected to the middle of the groove, and water leakage holes are evenly formed around the bottom of the groove, and the water leakage holes are gradually inclined outward from top to bottom.

[0057] An inclined plate 6 is fixedly connected to the bottom end of one side of the filter chamber 1, and the inclination angle of the inclined plate 6 is 20°~75°. Specifically, the inclination angle of the inclined plate 6 is based on the horizontal line, and a discharge port 7 is opened at the bottom end of the inclined plate 6, and the discharge port 7 is connected to the connection of the collection chamber 3. A waterproof cover 8 is fixedly connected to the middle part of the inclined plate 6, and the waterproof cover 8 is located directly below the sleeve 24, and the rotating shaft 27 is rotatably connected to the middle part of the top of the waterproof cover 8. Specifically, a bearing hole is opened at the top of the shell of the waterproof cover 8, and a rotating bearing matching the rotating shaft 27 is installed at the bearing hole.

[0058] A heat sink 5 is fixedly connected to the vacant space between the filter cavity 1 and the collection cavity 3 , and ventilation holes are evenly formed on the outer wall of the heat sink 5 .

[0059] A collecting box 4 is horizontally slidably connected inside the collecting cavity 3, and a handle is fixedly connected to the outer end of the collecting box 4.

[0060] The implementation principle of a fracturing fluid filtering device in this embodiment is:

[0061] When the motor 28 starts the rotation of the rotating shaft 27, the sliding sleeve 20 and the positioning rod 19 can slide vertically and be connected to the sliding groove 22 and the sliding rod 23. As the sleeve 24 rotates, the ejecting barrel 21 can be driven to vertically displace in the middle of the filter 10, and the particles gathered in the middle of the filter 10 are collected in the groove. When the ejecting barrel 21 performs reciprocating vertical displacement, the particles are intermittently transported to the bottom end of the rubber protrusion 37 and abut against the rubber protrusion 37.

[0062] At the same time, pulley 1 29 and belt 30 are used to drive pulley 2 31 to rotate. The rotation connection between pulley 2 31 and support sleeve 33, in conjunction with the sliding connection between the spherical protrusion and the circulation guide rotating rod 32, can drive the circulation guide rotating rod 32 to pull the circular plate to slide vertically in the exhaust chamber 34. The one-way valve is used in conjunction with the exhaust pipe 35 to absorb the particles in the groove of the rubber protrusion 37, and the particles will enter the collection tank along the conveying pipe 36.

[0063] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A fracturing fluid filtering device, comprising: A filter cavity, wherein a liquid inlet is fixedly connected to the middle of the top of the filter cavity, and a collecting cavity is fixedly connected to the bottom of the filter cavity, wherein the filter cavity, the liquid inlet and the collecting cavity are connected; It is characterized by further comprising: The anti-clogging mechanism includes an annular stopper fixed to the top of the inner wall of the filter chamber, the annular stopper is rotatably connected to a filter screen, the filter screen is a bowl-shaped structure with an opening upward, the upper end of the filter screen is slidably abutted against two scrapers, and the tops of the two scrapers are fixedly connected to the inner wall of the filter chamber; Material toggling mechanism, the method being that a little bit high is hinged on the base, and the position of the button bar is set, and the position of the button bar is set, and the displacement of the button bar is set, and the displacement of the button bar is set at the bottom, and the displacement of the button bar is set at the bottom.

2. A fracturing fluid filtering device according to claim 1, characterized in that: The vibration assembly comprises a circular ring block fixedly connected to the outer wall of the filter screen, the outer wall of the circular ring block is evenly distributed with circular protrusions, the circular protrusions are intermittently slidably abutted against rotating blocks, and the rotating blocks are divided into two groups.

3. A fracturing fluid filtering device as claimed in claim 2, characterized in that: The tops of the two groups of rotating blocks are fixedly connected with rotating rods, the tops of the two groups of rotating rods are rotatably connected with top plates, and the two groups of rotating rods penetrate the top of the filter cavity and are horizontally slidably connected thereto, and springs are elastically connected between the two groups of top plates and the filter cavity.

4. A fracturing fluid filtering device according to claim 1, characterized in that: The adsorption component includes a belt pulley 1 fixedly connected to the outer wall of the rotating shaft, a belt is arranged on the outer side of the belt pulley 1, a belt is arranged on the other side of the belt, and a spherical protrusion is fixedly connected to the inner wall of the belt pulley 2.

5. A fracturing fluid filtering device as claimed in claim 4, characterized in that: The spherical protrusion is slidably connected to a circulation guide rotating rod, and the bottom end of the circulation guide rotating rod is fixedly connected to a circular plate, the circular plate is vertically slidably connected to the inner wall of the vacuum chamber, and a one-way valve is arranged at the circular plate, the middle part of the second bottom end of the belt pulley is rotatably connected to a support sleeve plate, the bottom ends of both sides of the support sleeve plate are fixedly connected to the vacuum chamber, a rubber ring is arranged at the sliding position between the vacuum chamber and the circular plate, and the bottom end of the vacuum chamber is fixedly connected to the top of the collection chamber.

6. A fracturing fluid filtering device as claimed in claim 5, characterized in that: An exhaust pipe is fixedly connected to the lower part of the outer wall of the exhaust cavity, and the exhaust pipe is communicated with the bottom end of the inner wall of the exhaust cavity. A delivery pipe is inserted at the other end of the exhaust pipe. One end of the delivery pipe passes through the top of the filter cavity and is fixedly connected to one side of the bottom end of the baffle. One end of the delivery pipe has an opening directly above the top barrel and is fixedly connected to a rubber protrusion, and the other end of the delivery pipe is inserted and connected to a collection tank.

7. A fracturing fluid filtering device as claimed in claim 6, characterized in that: A groove is provided at the top of the ejector barrel, a conical protrusion is fixedly connected to the middle of the groove, and water leakage holes are evenly provided around the bottom of the groove, and the water leakage holes are arranged to be gradually inclined outward from top to bottom.

8. A fracturing fluid filtering device as claimed in claim 6, characterized in that: An inclined plate is fixedly connected to the bottom end of one side of the filter cavity, the inclined plate has an inclination angle of 20° to 75°, and a feed discharge port is opened at the bottom end of the inclined plate, the feed discharge port is communicated with the connection of the collection cavity, a waterproof cover is fixedly connected to the middle of the inclined plate, the waterproof cover is located directly below the sleeve, and the rotating shaft is rotatably connected to the middle of the top of the waterproof cover.

9. A fracturing fluid filtering device as claimed in claim 8, characterized in that: A heat sink is fixedly connected to the vacant space between the filtering cavity and the collecting cavity, and ventilation holes are evenly opened on the outer wall of the heat sink.

10. A fracturing fluid filtering device according to claim 9, characterized in that: A collection box is horizontally slidably connected to the collection cavity, and a handle is fixedly connected to the outer end of the collection box.

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