A mounting mechanism for a downhole surveying Doppler ultrasonic flowmeter

Abstract

This invention relates to the field of water conservancy testing equipment and discloses an installation mechanism for a Doppler ultrasonic flowmeter used in downhole exploration. The mechanism includes an installation plate and further comprises: a storage unit disposed on the upper part of the installation plate for storing the flowmeter body; a fixing unit disposed on the lower part of the installation plate for fixing the flowmeter body to the well wall; a counterweight unit disposed on the lower part of the fixing unit for fixing the device to the bottom of the well; and a winding unit disposed on the fixing unit and connected to the flowmeter body via a traction rope for winding and unwinding the flowmeter body. This invention allows for the replacement and maintenance of the flowmeter body without requiring manual descent to the bottom of the well, saving time and effort. The device can also be used to change the installation method of the flowmeter body according to the conditions at the bottom of the well, making it highly practical.

Description

Technical Field

[0001] This invention relates to the field of water conservancy testing equipment technology, specifically to an installation mechanism for a Doppler ultrasonic flowmeter used in well exploration. Background Technology

[0002] A Doppler ultrasonic flow meter is a flow measurement device that utilizes the Doppler effect. Today, it is an important instrument for measuring the flow rate of industrial water and wastewater. When detecting flow velocity in wells, a Doppler effect measuring device needs to be installed underground for measurement.

[0003] The existing device has the following disadvantages: When installing the Doppler ultrasonic flow meter, it is necessary for the staff to drill down into the well for installation or to use a long rod to insert the Doppler ultrasonic flow meter into the bottom of the well and then fix the long rod at the wellhead. This is not only time-consuming but also cumbersome to install. Since the fluid environment at the bottom of the well is uncertain, it is difficult to fix the Doppler ultrasonic flow meter. Furthermore, when the Doppler ultrasonic flow meter is damaged, it is inconvenient to disassemble and repair it.

[0004] Therefore, this application proposes an installation mechanism for a Doppler ultrasonic flow meter for downhole exploration to solve the aforementioned problems. Summary of the Invention

[0005] The purpose of this invention is to provide an installation mechanism for a Doppler ultrasonic flow meter for downhole exploration, in order to solve the problems of time-consuming and cumbersome installation methods, the difficulty in fixing the Doppler ultrasonic flow meter due to the uncertain environment of the fluid at the bottom of the well, and the inconvenience of disassembly and maintenance when the Doppler ultrasonic flow meter is damaged.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an installation mechanism for a Doppler ultrasonic flowmeter for downhole exploration, comprising an installation plate, and further comprising:

[0007] A fixing unit is provided at the lower part of the mounting plate to support the flow meter body against the well wall;

[0008] A storage unit is adjustablely disposed on the upper part of the mounting plate and the fixing unit, and is used to store the flow meter body;

[0009] The counterweight unit is located below the fixed unit;

[0010] A winding unit is mounted on the fixing unit and connected to the flow meter body via a traction rope, used to wind up and unwind the flow meter body.

[0011] The fixing unit includes a second electric telescopic rod disposed on the mounting plate and a fixing plate disposed at the bottom of the second electric telescopic rod. A support rod is disposed between the mounting plate and the fixing plate. The support rod rotates and supports the well wall under the drive of the second electric telescopic rod.

[0012] The bottom of the fixed plate is connected to the extension plate via an extension rod.

[0013] The storage unit includes a placement frame with an upward opening on the mounting plate, a first electric telescopic rod inside the placement frame, and a clamping plate on the other side of the first electric telescopic rod. The clamping plate fixes the flow meter body under the action of the first electric telescopic rod.

[0014] The clamping plate is provided with a slider on the side corresponding to the placement frame. The slider passes through the placement frame, and the placement frame has a groove at the position corresponding to the slider for the slider to slide.

[0015] The bottom wall of the placement frame has a limiting groove in the middle for the traction rope to pass through.

[0016] The winding unit includes a protective box connected to the extension reel, a motor mounted on the protective box, and a winding roller mounted on the motor and located inside the protective box. The traction rope passes through the fixed reel and the protective box and is mounted on the winding roller. Driven by the motor, the installation position of the flow meter body is adjusted.

[0017] The counterweight unit includes a connecting section disposed on the extension plate, a top plate disposed below the connecting section, at least two connecting rods disposed below the top plate, and a bottom plate disposed below the connecting rods, with a cover plate sleeved on the connecting rods.

[0018] The base plate is provided with a limiting rod for restricting the counterweight, and the limiting rod passes through the cover plate.

[0019] The connecting rod is provided with an elastic element between the cover plate and the top plate.

[0020] The mounting plate is equipped with a support frame on its upper part, and the support frame is equipped with a pull rope for pulling the whole.

[0021] The extension plate is equipped with a hydroelectric generator, which is electrically connected to a storage battery, which is located inside the protective box.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. When the well to be tested is shallow and the well wall is relatively flat, the present invention installs the storage unit at the lower end of the fixing unit, places the flow meter body in the storage unit and fixes it, and then lowers the fixing unit into the well. After reaching the specified depth, the power component on the fixing unit is activated to support the fixing unit against the well wall and fix the flow meter body in the well. The flow velocity in the well is then detected. When the flow meter body is damaged and needs to be repaired or replaced, the storage unit is released from the restriction on the flow meter body. Then, the traction rope at the bottom of the flow meter body is loosened by the winding unit, and the flow meter body is pulled out from the bottom of the well by the connecting rope connected to the upper end of the flow meter body for repair or replacement. The repaired flow meter body is then connected to the traction rope, and the flow meter body is lowered into the bottom of the well by the winding unit and the connecting rope. The flow meter body is then moved into the storage unit by the traction rope and fixed by the storage unit. The flow meter body can be replaced or repaired without manual diving to the bottom of the well, saving time and effort.

[0024] 2. When the well is deep and the well wall is uneven and inconvenient to fix, the storage unit is installed on the upper end of the mounting plate, and then the counterweight unit is installed at the bottom of the fixing unit. Driven by the counterweight unit, the flow meter body is sunk to the bottom of the well. This device can change the installation method of the flow meter body according to the conditions at the bottom of the well, making the overall practicality strong. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the main structure in one embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the structure of the fixing unit in one embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the counterweight unit in one embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of the internal structure of the protective box in one embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the structure in which the fixing unit is fixed to the well wall in one embodiment of the present invention;

[0030] Figure 6 This is a schematic diagram of the top view of the fixing unit and the well wall in one embodiment of the present invention;

[0031] Figure 7 This is a schematic diagram of the storage unit in one embodiment of the present invention;

[0032] Figure 8 for Figure 5 Enlarged structural diagram of section A in the middle;

[0033] Figure 9 for Figure 6 Enlarged structural diagram of section B in the middle.

[0034] In the diagram: 1. Mounting plate; 2. Storage unit; 21. Placement frame; 22. Slide groove; 23. Clamping plate; 24. Slider; 25. First electric telescopic rod; 26. Limiting groove; 3. Fixing unit; 31. Second electric telescopic rod; 32. Support rod; 33. Fixing plate; 34. Extension rod; 35. Extension plate; 4. Counterweight unit; 41. Connecting section; 42. Top plate; 43. Connecting rod; 44. Bottom plate; 45. Limiting rod; 46. Cover plate; 47. Elastic element; 5. Winding unit; 51. Protective box; 52. Motor; 53. Winding roller; 54. Battery; 6. Hydroelectric generator; 7. Flow meter body; 8. Support frame; 9. Pull rope; 10. Traction rope. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Please see Figure 1-9 The present invention provides a technical solution: an installation mechanism for a Doppler ultrasonic flowmeter for downhole exploration, comprising an installation plate 1, and further comprising:

[0037] The fixing unit 3 is located at the lower part of the mounting plate 1 and is used to support the flow meter body 7 against the well wall;

[0038] Storage unit 2 is adjustablely mounted on the upper part of mounting plate 1 and fixing unit 3, and is used to store the flow meter body 7;

[0039] The counterweight unit 4 is located at the lower part of the fixed unit 3;

[0040] The winding unit 5 is mounted on the fixed unit 3 and connected to the flow meter body 7 via the traction rope 10, and is used to wind up and unwind the flow meter body 7.

[0041] It should be noted that during operation, when the well to be tested is shallow and the well wall is relatively flat, the storage unit 2 is installed at the lower end of the fixing unit 3, the flow meter body 7 is placed and fixed in the storage unit 2, and then the fixing unit 3 is lowered into the well. After reaching the specified depth, the power component on the fixing unit 3 is activated, so that the fixing unit 3 supports the well wall, fixing the flow meter body 7 in the well, and the flow velocity in the well is detected. When the flow meter body 7 is damaged and needs to be repaired or replaced, the restriction of the flow meter body 7 by the storage unit 2 is released, and then the traction rope 10 at the bottom of the flow meter body 7 is loosened by the winding unit 5. Then, the flow meter body 7 is pulled out from the bottom of the well by the connecting rope connected to the upper end of the flow meter body 7 for repair or replacement. Then, the repaired flowmeter body 7 is connected to the traction rope 10. The flowmeter body 7 is then lowered to the bottom of the well via the winding unit 5 and the connecting rope. The flowmeter body 7 is then moved into the storage unit 2 by the traction rope 10 and fixed by the storage unit 2. The flowmeter body 7 can be replaced and repaired without manual descent to the bottom of the well, saving time and effort. When the well is deep and the well wall is uneven and it is not convenient to fix it, the storage unit 2 is installed on the upper end of the mounting plate 1, and the counterweight unit 4 is installed at the bottom of the fixing unit 3. The flowmeter body 7 is lowered to the bottom of the well by the counterweight unit 4. This device can change the installation method of the flowmeter body 7 according to the conditions at the bottom of the well, making the overall practicality strong.

[0042] In one embodiment, the fixing unit 3 includes a second electric telescopic rod 31 disposed on the mounting plate 1 and a fixing plate 33 disposed at the bottom of the second electric telescopic rod 31. A support rod 32 is disposed between the mounting plate 1 and the fixing plate 33. The support rod 32 rotates and is fixed to the well wall under the drive of the second electric telescopic rod 31.

[0043] The bottom of the fixed plate 33 is connected to the extension plate 35 via the extension rod 34. With this design, when the second electric telescopic rod 31 is activated to retract, the support rod 32 rotates and extends outward to support and fix against the well wall, thus fixing the flow meter body 7 in the designated installation position.

[0044] In one embodiment, the storage unit 2 includes a placement frame 21 with its opening facing upwards on the mounting plate 1, a first electric telescopic rod 25 disposed inside the placement frame 21, and a clamping plate 23 disposed on the other side of the first electric telescopic rod 25. The clamping plate 23 fixes the flowmeter body 7 under the action of the first electric telescopic rod 25. With this design, the flowmeter body 7 is placed inside the placement frame 21, and then the first electric telescopic rod 25 is activated, which moves the clamping plate 23 to fix the flowmeter body 7 inside the placement frame 21. The flowmeter body 7 can be stably fixed inside the placement frame 21 by the combined action of the traction rope 10 and the clamping plate 23.

[0045] In one embodiment, a slider 24 is provided on the side of the clamping plate 23 corresponding to the placement frame 21. The slider 24 passes through the placement frame 21, and a groove 22 is provided on the placement frame 21 at the position corresponding to the slider 24 for the slider 24 to slide. With this design, the slider 24 and the groove 22 can restrict the movement of the clamping plate 23, allowing the clamping plate 23 to translate inside the placement frame 21, which can improve the stability of fixing the flow meter body 7.

[0046] In one embodiment, a limiting groove 26 is provided in the middle of the bottom wall of the placement frame 21 for the traction rope 10 to pass through. With this design, the limiting groove 26 allows the flow meter body 7 to be placed in the middle of the placement frame 21 under the action of the traction rope 10, so that the clamping plate 23 can support the flow meter body 7.

[0047] In one embodiment, the winding unit 5 includes a protective box 51 connected to the extension reel 35, a motor 52 mounted on the protective box 51, and a winding roller 53 mounted on the motor 52 and located inside the protective box 51. The traction rope 10 passes through the fixed plate 33 and the protective box 51 and is mounted on the winding roller 53. Driven by the motor 52, the installation position of the flowmeter body 7 is adjusted. With this design, starting the motor 52 causes the winding roller 53 to release the traction rope 10, and then pulls up the connecting rope mounted on the upper end of the flowmeter body 7 to remove the flowmeter body 7 from the bottom of the well. After the repaired flowmeter body 7 is fixed on the traction rope 10, starting the motor 52 in reverse causes the winding roller 53 to wind up the traction rope 10. Then the traction rope 10 drives the flowmeter body 7 to descend, and after moving into the placement frame 21, the motor 52 is turned off, and then the flowmeter body 7 is fixed inside the placement frame 21.

[0048] In one embodiment, the counterweight unit 4 includes a connecting section 41 disposed on the extension plate 35, a top plate 42 disposed below the connecting section 41, at least two connecting rods 43 disposed below the top plate 42, and a bottom plate 44 disposed below the connecting rods 43. A cover plate 46 is sleeved on the connecting rods 43.

[0049] In one embodiment, a limiting rod 45 for restricting the counterweight is provided on the base plate 44, and the limiting rod 45 passes through the cover plate 46.

[0050] The connecting rod 43 is positioned between the cover plate 46 and the top plate 42, and an elastic element 47 is provided. With this design, the cover plate 46 is lifted and the counterweight is placed on the limiting rod 45. The number of counterweights can then be adjusted according to the turbulence of the water flow at the bottom of the well. Then, the cover plate 46 is released, causing the elastic element 47 to move the cover plate 46 downward. The cover plate 46 compresses the counterweight, making the counterweight more securely installed. Then, the flow meter body 7 and the counterweight unit 4 sink to the bottom of the well.

[0051] In one embodiment, a support frame 8 is provided on the upper part of the mounting plate 1, and a pull rope 9 for traction of the whole assembly is provided on the support frame 8. With this design, the pull rope 9 can drive the mounting plate 1 to move downwards, thereby driving the whole mounting mechanism to move up and down.

[0052] In one embodiment, a hydroelectric generator 6 is mounted on the extension plate 35. The hydroelectric generator 6 is electrically connected to a storage battery 54, which is located inside the protective box 51. With this design, the hydroelectric generator 6 rotates under the influence of water flow, converting kinetic energy into electrical energy, which is then stored in the storage battery 54 for use by the power components on the mounting structure.

Claims

1. An installation mechanism for a Doppler ultrasonic flowmeter used in downhole exploration, comprising an installation plate (1), characterized in that, Also includes: A fixing unit (3) is provided at the lower part of the mounting plate (1) for supporting the flow meter body (7) and the well wall; The storage unit (2) is adjustablely disposed on the upper part of the mounting plate (1) and the fixing unit (3) for storing the flow meter body (7). The counterweight unit (4) is located at the lower part of the fixed unit (3); The winding unit (5) is set on the fixed unit (3) and connected to the flow meter body (7) through the traction rope (10), and is used to wind up and unwind the flow meter body (7); The fixing unit (3) includes a second electric telescopic rod (31) set on the mounting plate (1) and a fixing plate (33) set at the bottom of the second electric telescopic rod (31). A support rod (32) is provided between the mounting plate (1) and the fixing plate (33). The support rod (32) rotates and supports the well wall under the drive of the second electric telescopic rod (31). The bottom of the fixed plate (33) is connected to the extension plate (35) via the extension rod (34); The storage unit (2) includes a placement frame (21) with an upward opening on the mounting plate (1), a first electric telescopic rod (25) inside the placement frame (21), and a clamping plate (23) on the other side of the first electric telescopic rod (25). The clamping plate (23) fixes the flow meter body (7) under the drive of the first electric telescopic rod (25). The winding unit (5) includes a protective box (51) mounted on the extension plate (35), a motor (52) mounted on the protective box (51), and a winding roller (53) mounted on the motor (52) and located inside the protective box (51). The traction rope (10) passes through the fixed plate (33) and the protective box (51) and is mounted on the winding roller (53). Under the drive of the motor (52), the installation position of the flow meter body (7) is adjusted.

2. The installation mechanism for a Doppler ultrasonic flowmeter for downhole exploration according to claim 1, characterized in that: The clamping plate (23) is provided with a slider (24) on the side corresponding to the placement frame (21). The slider (24) passes through the placement frame (21). The placement frame (21) is provided with a groove (22) for the slider (24) to slide at the position corresponding to the slider (24).

3. The installation mechanism for a Doppler ultrasonic flowmeter for downhole exploration according to claim 1, characterized in that: The bottom wall of the placement frame (21) has a limiting groove (26) for the traction rope (10) to pass through.

4. The installation mechanism for a Doppler ultrasonic flowmeter for downhole exploration according to claim 2, characterized in that: The counterweight unit (4) includes a connecting section (41) connected to the extension plate (35), a top plate (42) disposed at the lower part of the connecting section (41), at least two connecting rods (43) disposed at the lower part of the top plate (42), and a bottom plate (44) disposed at the lower part of the connecting rods (43). A cover plate (46) is sleeved on the connecting rods (43).

5. The installation mechanism for a Doppler ultrasonic flowmeter for downhole exploration according to claim 4, characterized in that: The base plate (44) is provided with a limiting rod (45) for restricting the counterweight, and the limiting rod (45) passes through the cover plate (46); The connecting rod (43) is provided with an elastic element (47) between the cover plate (46) and the top plate (42).

6. The installation mechanism for a Doppler ultrasonic flowmeter for downhole exploration according to claim 1, characterized in that: The upper part of the mounting plate (1) is provided with a support frame (8), and the support frame (8) is provided with a pull rope (9) for pulling the whole.

7. The installation mechanism for a Doppler ultrasonic flowmeter for downhole exploration according to claim 1, characterized in that: A hydroelectric generator (6) is installed on the extension plate (35), and the hydroelectric generator (6) is electrically connected to the storage battery (54), which is located inside the protective box (51).

Images