Drilling fluid cooling device

Abstract

The utility model discloses a drilling fluid cooling device which comprises a machine frame, a heat exchanger body is arranged on the inner bottom face of the machine frame, the heat exchanger body is connected with a heating medium inlet pipe, a filter box is arranged between the heat exchanger body and the heating medium inlet pipe, and a filter assembly is movably arranged in the filter box. The two sides of the bottom face of the rack are rotationally connected with a plurality of alloy rolling wheels. Locking assemblies are further arranged at the lower ends of the two sides of the rack. Drilling fluid entering the filter box can be filtered through the filter screen, the filtered high-temperature drilling fluid enters the heat exchanger body for heat exchange and cooling, and the situation that the follow-up heat exchange effect is affected due to blockage caused by accumulation of large impurities is avoided. In addition, the rack can be easily carried, inconvenience in carrying caused by large weight in the prior art is avoided, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the field of petroleum drilling equipment, in particular to a drilling fluid cooling device. Background Art

[0002] Drilling is the process of drilling through a drilling rig. During the drilling process, drilling fluid is needed. During the drilling process, the temperature of the drilling fluid will increase. The high temperature will deteriorate the performance and stability of the drilling fluid, affect the performance of downhole equipment seals, cause large evaporation losses of the drilling fluid, and create a harsh working environment. Therefore, it is necessary to use corresponding equipment to cool the high-temperature drilling fluid.

[0003] In response to the above problems, a Chinese utility model patent with announcement number CN215927297U discloses a drilling fluid cooling device, including a box body, a cooling box fixedly connected to the bottom of the box body, the cooling box is filled with cooling water, a liquid inlet pipe is connected and fixed to the left side of the top of the box body, a liquid discharge pipe is connected and fixed to the bottom of the left side of the box body, a valve is fixedly connected to the left end of the liquid discharge pipe, a circular seat is fixedly connected to the inner wall of the top of the box body, and a sealing rotating sleeve on the circular seat is provided with a circular box with an opening at the top. The utility model has a reasonable design, which is convenient for quickly cooling and cooling the drilling fluid from the inside while stirring it, and with the cooperation of internal circulation and stirring of the cooling water, the cooling efficiency and uniformity are improved, and it is convenient to automatically change the high-temperature cooling water during the cooling process, further improving the continuous stability of the cooling work, and no manual temperature measurement and water change is required, which saves time and effort and meets the requirements of use.

[0004] However, in the above scheme, it is inconvenient to filter and clean, and the high-temperature drilling fluid also contains a lot of mud impurities. If it is directly transported for a long time, it will be blocked during the cooling process, which will affect the subsequent cooling effect of the drilling fluid, causing inconvenience in subsequent drilling work, and then affecting the corresponding drilling processing efficiency. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a drilling fluid cooling device.

[0006] The utility model is realized by adopting the following technical solutions.

[0007] A drilling fluid cooling device comprises a frame, wherein a heat exchanger body is arranged on the inner bottom surface of the frame, the heat exchanger body is connected with a heat medium inlet pipe, a filter box is arranged between the heat exchanger body and the heat medium inlet pipe, and a filter assembly is movably arranged in the filter box; a plurality of alloy rollers are rotatably connected to both sides of the bottom surface of the frame; and locking assemblies are also arranged at the lower ends of both sides of the frame.

[0008] Furthermore, the filter assembly includes a mounting groove arranged on the top surface of the filter box, a filter screen is inserted in the mounting groove, the upper end of the filter screen is connected to a sealing plate, and the sealing plate is movably connected to the top surface of the filter box.

[0009] Furthermore, an electric telescopic rod is provided on the top surface of the filter box, the output end of the electric telescopic rod extends into the filter box and is connected to a connecting plate, and a cleaning brush is connected to one side of the connecting plate.

[0010] Furthermore, both sides of the upper portion of the sealing plate are connected with anti-skid convex strips, and the anti-skid convex strips are wavy.

[0011] Furthermore, a sealing gasket is connected to the lower surface of the sealing plate.

[0012] Furthermore, both sides of the inner bottom wall of the filter box are inclined toward the center of the filter box.

[0013] Furthermore, the bottom of the filter box is connected to a sewage pipe.

[0014] Furthermore, the locking assembly includes sliding grooves arranged at the lower ends of both sides of the frame, and sliding blocks are slidably connected in the sliding grooves. The sliding blocks and the sliding grooves are fastened and limited by bolts; the sliding blocks are also connected to the locking plates.

[0015] Furthermore, the bottom surface of the locking plate is connected to a rubber pad.

[0016] Furthermore, a plurality of protection bars are provided on both sides of the frame.

[0017] The utility model obtains the following beneficial effects.

[0018] (1) The utility model provides a filter box, a filter assembly and a drain pipe. The high-temperature drilling fluid containing mud enters the filter box through the heat medium inlet pipe and is filtered through the filter screen to filter out the larger impurities therein. The filtered high-temperature drilling fluid enters the heat exchanger body for heat exchange and cooling, thereby avoiding the accumulation of larger impurities and blockage that affects the subsequent heat exchange effect, thereby improving its practicality. At the same time, the drain pipe can be opened regularly to discharge the filtered impurities, and the electric telescopic rod can be started at the same time to drive the connecting plate to descend, so that the cleaning brush can scrape the surface of the filter screen, scrape off the impurities adhered to the surface of the filter screen and discharge them through the drain pipe, thereby realizing automatic cleaning of the filter screen and reducing the number of times the filter screen is disassembled and cleaned. The utility model can also disassemble and clean or replace the filter screen to ensure the filtering effect of the filter screen, thereby achieving the function of facilitating filtering and cleaning.

[0019] (2) The utility model sets a locking assembly and an alloy roller, uses the alloy roller to carry the rack, carries it to a suitable position, and then uses the sliding block to slide and engage with the inside of the sliding groove, and cooperates with the fixing bolt and the thread inside the fixing screw hole to achieve the limited fixation of the locking plate after sliding, and then the locking plate can be tightened and fixed by the external bolt to achieve the firm placement of the rack, and the elastic deformation of the rubber pad is used to achieve the flexible contact between the bottom of the locking plate and the ground, achieving a certain buffering and shock-absorbing effect. The utility model can realize the easy transportation of the rack, avoid the inconvenience of traditional transportation caused by the heavy weight, and improve its practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the overall structure of the utility model when viewed from above;

[0022] Figure 3 It is a partial cross-sectional schematic diagram of the utility model;

[0023] Figure 4 This is an exploded view of the filter box of the utility model;

[0024] Figure 5 It is a partial enlarged view of the filter screen of the utility model.

[0025] Among them, 1. frame; 2. protection rod; 3. locking assembly; 301. locking plate; 302. rubber pad; 303. sliding groove; 304. fixing bolt; 305. sliding block; 306. fixing screw hole; 4. filter box; 5. heat medium inlet pipe; 6. filter assembly; 601. mounting bolt; 602. filter net; 603. mounting groove; 604. mounting screw hole; 605. electric telescopic rod; 606. sealing pad; 607. anti-slip convex strip; 608. sealing plate; 609. cleaning brush; 610. connecting plate; 7. refrigerant outlet pipe; 8. heat medium outlet pipe; 9. heat exchanger body; 10. refrigerant inlet pipe; 11. alloy roller; 12. sewage pipe. DETAILED DESCRIPTION

[0026] The technical solution of the utility model will be clearly and completely described below through specific implementation methods.

[0027] Example 1

[0028] like Figure 1-5As shown: a drilling fluid cooling device, including a frame 1, alloy rollers 11 are rotatably connected at equal intervals on both sides of the bottom surface of the frame 1, locking components 3 are arranged at the lower ends of both sides of the frame 1, a heat exchanger body 9 is fixedly connected to the inner bottom wall of the frame 1, a heat medium outlet pipe 8 is fixedly connected to the upper part of the front side of the heat exchanger body 9, a filter box 4 is fixedly connected to the lower part of the front side of the heat exchanger body 9, a heat medium inlet pipe 5 is fixedly connected to the front of the filter box 4, a sewage pipe 12 is fixedly connected to the bottom surface of the filter box 4, a filter component 6 is arranged inside the filter box 4, a refrigerant inlet pipe 10 is fixedly connected to the upper part of the other side of the front of the heat exchanger body 9, and a refrigerant outlet pipe 7 is fixedly connected to the lower part of the other side of the front of the heat exchanger body 9.

[0029] The filter assembly 6 includes a mounting groove 603, which is provided on one side of the top surface of the filter box 4. The top surface of the filter box 4 on both sides of the mounting groove 603 is provided with mounting screw holes 604. A sealing plate 608 is movably connected to one side of the top surface of the filter box 4. A filter screen 602 extending to the inside of the filter box 4 is fixedly connected to the lower end of the sealing plate 608. Mounting bolts 601 threadedly matched with the mounting screw holes 604 are movably connected to both sides of the top surface of the sealing plate 608. The high-temperature and mud-containing drilling fluid enters the inside of the filter box 4 through the heat medium inlet pipe 5. At this time, it is filtered by the filter screen 602 to filter out the larger impurities therein, and the filtered high-temperature drilling fluid enters the inside of the heat exchanger body 9 for heat exchange cooling to avoid the accumulation of larger impurities and blockage that affects the subsequent heat exchange effect.

[0030] In this embodiment, anti-slip ridges 607 are fixedly connected to both sides of the upper part of the sealing plate 608, and the shape of the anti-slip ridges 607 in a top view is wavy. The wavy anti-slip ridges 607 can increase the contact area between the user's fingers and the surface of the sealing plate 608, thereby facilitating the disassembly and cleaning of the filter screen 602 through the sealing plate 608.

[0031] In this embodiment, the cross-section of the sealing plate 608 is inverted convex, and the area of ​​the top cross-section of the sealing plate 608 is larger than the area of ​​the internal cross-section of the installation groove 603. By using a sealing plate 608 with a larger area, the top of the installation groove 603 can be fully blocked and sealed.

[0032] In this embodiment, a sealing gasket 606 is fixedly connected to the lower surface of the sealing plate 608, and the cross-sectional area of ​​the sealing gasket 606 is equal to the cross-sectional area inside the mounting groove 603. The sealing gasket 606 can be used to further improve the sealing performance between the lower end of the sealing plate 608 and the inside of the mounting groove 603 to avoid leakage of drilling fluid.

[0033] In this embodiment, the two ends of the other side of the top surface of the filter box 4 are fixedly connected with electric telescopic rods 605, and the output end of the electric telescopic rod 605 extends to the interior of the filter box 4 and is fixedly connected with a connecting plate 610. One side of the connecting plate 610 is fixedly connected with a cleaning brush 609. By starting the electric telescopic rod 605 to drive the connecting plate 610 to descend, the cleaning brush 609 scrapes the surface of the filter screen 602, scrapes off the impurities adhered to the surface of the filter screen 602 and discharges them through the sewage pipe 12, thereby realizing automatic cleaning of the filter screen 602 and reducing the number of times the filter screen 602 is disassembled and cleaned.

[0034] In this embodiment, the two sides of the inner bottom wall of the filter box 4 are beveled, and the inclination angle between the two sides of the inner bottom wall of the filter box 4 and the horizontal direction is 30°. The filter box 4 with an beveled inner bottom wall facilitates the guidance of impurities filtered by the filter net 602, so that they can be discharged faster through the sewage pipe 12.

[0035] Example 2

[0036] On the basis of Example 1, the locking assembly 3 of the utility model includes a sliding groove 303, which is opened at the lower ends of both sides of the frame 1, and the upper and lower ends of the inner wall of the sliding groove 303 are provided with fixing screw holes 306, the sliding groove 303 is movably connected with a sliding block 305, and one side of the sliding block 305 is fixedly connected with a locking plate 301, and the sliding block 305 is movably connected with a fixing bolt 304 threadedly matched with the fixing screw hole 306. The frame 1 is moved to a suitable position by using the alloy roller 11, and then the sliding block 305 is slidably engaged with the inside of the sliding groove 303, and the fixing bolt 304 is matched with the thread inside the fixing screw hole 306 to achieve the limited fixing of the locking plate 301 after sliding, and then the locking plate 301 can be tightened and fixed by external bolts to achieve the firm placement of the frame 1.

[0037] In this embodiment, the bottom end of the locking plate 301 is fixedly connected to a rubber pad 302, and the locking plate 301 and the rubber pad 302 are symmetrically distributed about the vertical center axis of the frame 1. The elastic deformation of the rubber pad 302 is utilized to achieve flexible contact between the bottom end of the locking plate 301 and the ground, thereby achieving a certain buffering and shock-absorbing effect.

[0038] In this embodiment, a sliding engagement structure is formed between the sliding block 305 and the interior of the sliding groove 303, and the shape of the sliding groove 303 and the sliding block 305 in the top view is convex. The sliding engagement between the convex sliding block 305 and the interior of the sliding groove 303 is used to improve the sliding stability of the locking plate 301.

[0039] In addition, protective rods 2 are fixedly connected to both sides of the frame 1 at equal intervals, and both ends of the protective rods 2 are welded to the inner wall of the frame 1 to form an integrated structure. The welded protective rods 2 are used to protect the front and rear sides of the heat exchanger body 9.

[0040] The working principle and use process of the utility model are as follows:

[0041] First, the frame 1 is moved to a suitable position by using the alloy roller 11, and then the fixing bolt 304 is rotated until it is completely disengaged from the fixing screw hole 306, and then the locking plate 301 is pulled so that the sliding block 305 slides downward inside the sliding groove 303 to the setting position of the lower fixing screw hole 306, and then the fixing bolt 304 is rotated to engage with the lower fixing screw hole 306 to achieve the limited fixation of the locking plate 301 after sliding, and then the locking plate 301 can be tightened and fixed by the external bolts to achieve the firm placement of the frame 1, and the elastic deformation of the rubber pad 302 is used to achieve the flexible contact between the bottom end of the locking plate 301 and the ground, so as to achieve a certain buffering and shock absorbing effect;

[0042] Then, the corresponding pipelines are connected with the heat medium inlet pipe 5, the refrigerant outlet pipe 7, the heat medium outlet pipe 8 and the refrigerant inlet pipe 10. After that, during the drilling process, the high-temperature and mud-containing drilling fluid enters the filter box 4 through the heat medium inlet pipe 5. At this time, it is filtered by the filter screen 602 to filter out the larger impurities therein, and the filtered high-temperature drilling fluid enters the heat exchanger body 9 for heat exchange and cooling. At the same time, the drain pipe 12 can be opened regularly to discharge the filtered impurities, and the electric telescopic rod 605 is started at the same time to drive the connecting plate 610 to descend, so that the cleaning brush 609 can clean the filter screen 60 2 surface scraping, scraping off the impurities adhering to the surface of the filter 602 and discharging them through the sewage pipe 12, realizing automatic cleaning of the filter 602, and reducing the number of times of disassembly and cleaning of the filter 602; when it is necessary to disassemble and thoroughly clean or replace the filter 602, the mounting bolt 601 can be rotated until it is completely disengaged from the inside of the mounting screw hole 604, and then the filter 602 can be taken out from the inside of the filter box 4 through the sealing plate 608, so as to realize thorough cleaning and replacement of the filter 602; during installation, the sealing gasket 606 can be used to improve the sealing performance between the lower end of the sealing plate 608 and the inside of the mounting groove 603.

[0043] The embodiments described above are merely descriptions of preferred implementation modes of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering and technical personnel in the field should fall within the protection scope of the present invention. The technical contents for which protection is sought in the present invention have been fully recorded in the technical requirements.

Claims

1. A drilling fluid cooling device, comprising a frame (1), a heat exchanger body (9) is provided on the inner bottom surface of the frame (1), the heat exchanger body (9) is connected to a heat medium inlet pipe (5), and is characterized in that: A filter box (4) is provided between the heat exchanger body (9) and the heat medium inlet pipe (5), and a filter assembly (6) is movably provided in the filter box (4); a plurality of alloy rollers (11) are rotatably connected to both sides of the bottom surface of the frame (1); and locking assemblies (3) are also provided at the lower ends of both sides of the frame (1).

2. A drilling fluid cooling device according to claim 1, characterized in that: The filter assembly (6) comprises a mounting groove (603) arranged on the top surface of the filter box (4), a filter screen (602) is inserted into the mounting groove (603), the upper end of the filter screen (602) is connected to a sealing plate (608), and the sealing plate (608) is movably connected to the top surface of the filter box (4).

3. A drilling fluid cooling device according to claim 2, characterized in that: An electric telescopic rod (605) is also provided on the top surface of the filter box (4), the output end of the electric telescopic rod (605) extends into the filter box (4) and is connected to a connecting plate (610), and a cleaning brush (609) is connected to one side of the connecting plate (610).

4. A drilling fluid cooling device according to claim 2, characterized in that: Anti-skid convex strips (607) are connected to both sides of the upper part of the sealing plate (608), and the anti-skid convex strips (607) are wavy.

5. A drilling fluid cooling device according to claim 2, characterized in that: A sealing gasket (606) is connected to the lower surface of the sealing plate (608).

6. A drilling fluid cooling device according to claim 1, characterized in that: Both sides of the inner bottom wall of the filter box (4) are arranged to be inclined toward the center of the filter box (4).

7. A drilling fluid cooling device according to claim 1, characterized in that: The bottom of the filter box (4) is connected to a sewage discharge pipe (12).

8. The drilling fluid cooling device according to claim 1, characterized in that: The locking assembly (3) comprises a sliding groove (303) arranged at the lower ends of both sides of the frame (1), a sliding block (305) is slidably connected in the sliding groove (303), and the sliding block (305) and the sliding groove (303) are fastened and limited by bolts; the sliding block (305) is also connected to the locking plate (301).

9. A drilling fluid cooling device according to claim 8, characterized in that: The bottom surface of the locking plate (301) is connected to the rubber pad (302).

10. The drilling fluid cooling device according to claim 1, characterized in that: A plurality of protection rods (2) are provided on both sides of the frame (1).

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