Hydraulic fracturing continuous conveying device

Abstract

The utility model discloses a hydraulic fracturing continuous conveying device, which relates to the technical field of coal mine laneway engineering and comprises a working vehicle, and a winch, a winch driving mechanism, a high-pressure hose, a hole packer, a conveying runway and a propelling mechanism which are arranged on the working vehicle, the winch driving mechanism can drive the winch to rotate, and the high-pressure hose is wound on the winch and fixedly connected with the winch; the hole packer can be installed at the movable end of the high-pressure hose, and a hydraulic fracturing hole is formed in the hole packer. The conveying runway can stretch out and draw back, the angle of the conveying runway can be adjusted relative to the working vehicle, the high-pressure hose and the hole packer can penetrate through the conveying runway, and the propelling mechanism can propel or pull back the high-pressure hose along the conveying runway. The utility model has the advantage that the construction efficiency of hydraulic fracturing is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine shaft and tunnel engineering, in particular to a hydraulic fracturing continuous conveying device. Background Art

[0002] At present, the commonly used method for hydraulic fracturing in mines is to install the hydraulic fracturing sealer on the special grouting iron pipe after the hydraulic drill is drilled, and the hydraulic fracturing sealer is pushed into the borehole by the hydraulic drill in combination with the special grouting iron pipe. After the hydraulic fracturing sealer reaches the specified depth, hydraulic fracturing is carried out. After the hydraulic fracturing is completed, the special grouting iron pipe is pulled out of the borehole by the hydraulic drill and the hydraulic fracturing sealer is removed. The patent document with publication number CN102852522A discloses a method for hydraulic fracturing of coal mine tunnels, which first uses a drill bit to drill out the fracturing section, then pushes the sealer with a water injection pipe into the fracturing section, connects the high-pressure water pump to the water injection pipe, and pressurizes the sealer until the sealer is fracturing.

[0003] The existing hydraulic fracturing methods have the following disadvantages: (1) When using a drilling rig with a special grouting iron pipe to push the hydraulic fracturing sealer into and out of the borehole, workers are required to carry the special grouting iron pipes one by one to the bottom of the drilling rig for installation. After the construction is completed, the special grouting iron pipes are removed one by one, which has low construction efficiency, high labor intensity, and high labor costs. In addition, the frequent transportation of the special grouting iron pipes by workers is dangerous and poses a safety hazard; (2) It is difficult to hydraulically fractur e holes at different locations; (3) After drilling a hole, the hydraulic drill cannot continue to construct the next hole, but is used as a hydraulic fracturing conveyor, and the drilling rig is inefficient. Utility Model Content

[0004] The technical problem to be solved by the utility model is how to improve the construction efficiency of hydraulic fracturing.

[0005] The utility model solves the above-mentioned technical problems through the following technical means: a hydraulic fracturing continuous conveying device, comprising a work vehicle and a winch, a winch driving mechanism, a high-pressure hose, a hole sealer, a conveying runway and a propulsion mechanism arranged on the work vehicle; the winch driving mechanism can drive the winch to rotate, the high-pressure hose is wound around the winch and fixedly connected to the winch; the hole sealer can be installed at the movable end of the high-pressure hose, and the hole sealer is provided with a hydraulic fracturing hole; the conveying runway can be telescopic and the angle can be adjusted relative to the work vehicle, the high-pressure hose and the hole sealer can pass through the conveying runway, and the propulsion mechanism can push or pull the high-pressure hose along the conveying runway. The utility model utilizes a high-pressure hose to replace the traditional special grouting iron pipe, and utilizes a capstan, a capstan driving mechanism, a conveying runway and a propulsion mechanism to realize the continuous conveyance of the high-pressure hose when installing the hole sealer. There is no need for manual handling and loading and unloading, which reduces labor intensity, saves labor costs, greatly improves the construction efficiency of hydraulic fracturing, eliminates safety hazards, and ensures the safety of operators. The work vehicle can move forward and backward, and the conveying runway can adjust the angle to realize hydraulic fracturing of holes in different positions such as the top and the side. Hydraulic fracturing does not occupy the drilling rig, and the drilling rig can continue to construct the next hole after drilling, thereby improving the use efficiency of the drilling rig.

[0006] As an optimized technical solution, a pressure sensor and a flow sensor are installed on the high-pressure hose, and both the pressure sensor and the flow sensor are connected to the acquisition system. The pressure sensor and the flow sensor can detect the liquid pressure and flow rate in real time during the fracturing process and collect them through the acquisition system, so as to adjust the liquid flow rate and pressure in time.

[0007] As an optimized technical solution, a wireless transmission borehole imager is installed on the sealer, and a displacement sensor is provided on the wireless transmission borehole imager. The wireless transmission borehole imager and the displacement sensor can image and compare the borehole during the back and forth transportation of the sealer, and further guide the fracturing process.

[0008] As an optimized technical solution, the hydraulic fracturing continuous conveying device also includes a hydraulic pump arranged on the work vehicle, and each driving mechanism on the hydraulic fracturing continuous conveying device adopts a hydraulic driving mechanism. The hydraulic pump is used to supply oil to each driving mechanism on the hydraulic fracturing continuous conveying device.

[0009] As an optimized technical solution, the transport runway includes a mounting plate, a fixed runway, a mobile runway, a first adjusting cylinder and a second adjusting cylinder. The mounting plate is hinged on the work vehicle, the fixed runway is fixedly connected to the mounting plate, the mobile runway is movably arranged inside the fixed runway, the two ends of the first adjusting cylinder are respectively hinged on the work vehicle and the fixed runway, and the two ends of the second adjusting cylinder are respectively hinged on the mounting plate and the mobile runway. The telescopic movement of the first adjusting cylinder can realize the adjustment of the overall angle of the mounting plate, the fixed runway and the mobile runway, and the telescopic movement of the second adjusting cylinder can realize the telescopic movement of the mobile runway along the fixed runway.

[0010] As an optimized technical solution, the propulsion mechanism includes a driving wheel bracket, a driven wheel bracket, a first clamping cylinder, a second clamping cylinder, a driving wheel, a driven wheel and a propulsion motor. The driving wheel bracket and the driven wheel bracket are symmetrically arranged on both sides of the high-pressure hose and are respectively slidably matched with the mounting plate. The first clamping cylinder and the second clamping cylinder are respectively fixedly connected to the mounting plate and the moving ends are respectively fixedly connected to the driving wheel bracket and the driven wheel bracket. The driving wheel and the driven wheel are respectively rotatably connected to the driving wheel bracket and the driven wheel bracket. The propulsion motor is fixedly connected to the driving wheel bracket and the output end is transmission connected to the driving wheel.

[0011] As an optimized technical solution, the working vehicle includes a vehicle body, a walking mechanism, a bottom support mechanism and a top support mechanism. The walking mechanism can walk along the bottom plate of the work site. The bottom support mechanism can support between the vehicle body and the bottom plate of the work site when the walking mechanism stops walking. The top support mechanism can support between the vehicle body and the top plate of the work site when the walking mechanism stops walking. The device can walk along the bottom plate of the work site through the walking mechanism, and the bottom support mechanism and the top support mechanism can stably support the device.

[0012] As an optimized technical solution, the traveling mechanism includes a chassis frame, crawler tracks and a traveling motor. The chassis frame is fixedly connected to the vehicle body. The crawler tracks and the traveling motor are arranged on the chassis frame. The traveling motor can drive the crawler tracks to move.

[0013] As an optimized technical solution, the bottom support mechanism includes a sleeve, an adjustment rod, a bottom support cylinder and a bottom support plate; the sleeve is fixedly connected to the vehicle body and its length direction is along the width direction of the vehicle body, the adjustment rod is inserted inside the sleeve and can move along the length direction of the sleeve, and the adjustment rod is fixedly connected to the sleeve via a fastener passing through the sleeve; the bottom support cylinder is fixedly connected to the adjustment rod, and the bottom support plate is fixedly connected to the moving end of the bottom support cylinder. By changing the connection position of the adjustment rod and the sleeve, the position of the bottom support cylinder along the width direction of the vehicle body can be adjusted, thereby selecting a suitable support point.

[0014] As an optimized technical solution, the top support mechanism includes a top support cylinder and a top support plate, wherein the top support cylinder is fixedly connected to the vehicle body, the top support plate is hinged at the moving end of the top support cylinder, and a concave-convex structure is provided on the top surface of the top support plate. The top support plate can swing and the concave-convex structure on the top surface increases the friction force, so that the top support mechanism can be more stably supported between the vehicle body and the top plate of the work site.

[0015] The advantages of the utility model are:

[0016] 1. Use high-pressure hoses to replace traditional special grouting iron pipes, and use winches, winch drive mechanisms, conveying runways and propulsion mechanisms to achieve continuous conveying of high-pressure hoses when installing the hole sealer. No manual handling and loading and unloading are required, which reduces labor intensity, saves labor costs, greatly improves the construction efficiency of hydraulic fracturing, eliminates safety hazards, and ensures the safety of operators.

[0017] 2. The work vehicle can move forward and backward, and the conveyor runway can adjust the angle to achieve hydraulic fracturing of holes in different locations such as the top and side.

[0018] 3. Hydraulic fracturing does not occupy the drilling rig. After drilling a hole, the drilling rig can continue to construct the next hole, which improves the efficiency of the drilling rig.

[0019] 4. Pressure sensors and flow sensors can detect the liquid pressure and flow in real time during the fracturing process and collect the data through the acquisition system, so as to adjust the liquid flow and pressure in time.

[0020] 5. The wireless transmission borehole imager and displacement sensor can image and compare the borehole during the back and forth transportation of the sealer, further guiding the fracturing process.

[0021] 6. The device can move along the bottom plate of the work site through the walking mechanism, and the bottom supporting mechanism and the top supporting mechanism can provide stable support for the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1It is a schematic structural diagram of a hydraulic fracturing continuous conveying device according to an embodiment of the utility model.

[0023] Figure 2 It is a schematic structural diagram of the walking mechanism of an embodiment of the utility model.

[0024] Figure 3 It is a structural schematic diagram of the bottom support mechanism of an embodiment of the utility model.

[0025] Figure 4 It is a structural schematic diagram of the top support mechanism of an embodiment of the utility model.

[0026] Figure 5 It is a schematic structural diagram of the transport runway and propulsion mechanism of an embodiment of the utility model.

[0027] Figure 6 It is a schematic diagram of the structure of the emulsification pump, pressure sensor, flow sensor, acquisition system, wireless transmission drilling imager and displacement sensor of the embodiment of the utility model. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described in combination with the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model.

[0029] like Figures 1 to 6 As shown, an embodiment of the utility model discloses a hydraulic fracturing continuous conveying device, including a work vehicle 1 and a winch 2, a winch driving mechanism 3, a high-pressure hose 4, a sealer 5, a conveying runway 6, a propulsion mechanism 7, a hydraulic pump 8 and a liquid booster pump 9 arranged on the work vehicle 1, and also includes an emulsification pump 101 arranged at the construction site, a pressure sensor 102, a flow sensor 103 and a collection system 104 arranged on the high-pressure hose 4, and a wireless transmission drilling imager 105 and a displacement sensor 106 arranged on the sealer 5.

[0030] The work vehicle 1 includes a vehicle body 11, a traveling mechanism 12, a bottom support mechanism 13 and a top support mechanism 14. The traveling mechanism 12 can travel along the bottom plate of the work site. The bottom support mechanism 13 can be supported between the vehicle body 11 and the bottom plate of the work site when the traveling mechanism 12 stops traveling. The top support mechanism 14 can be supported between the vehicle body 11 and the top plate of the work site when the traveling mechanism 12 stops traveling.

[0031] The vehicle body 11 includes a lower platform made of steel plates and an upper platform made of steel plates arranged above the lower platform. A plurality of support columns made of channel steels are welded between the upper platform and the lower platform.

[0032] The traveling mechanism 12 includes a chassis frame 121, tracks 122 and a traveling motor 123; the chassis frame 121 is fixedly connected to the vehicle body 11 at the bottom of the lower platform, and tracks 122 and traveling motors 123 are symmetrically arranged on both sides of the chassis frame 121, and the traveling motor 123 can drive the tracks 122 to move; the track 122 is 230 mm wide, the total length of the traveling mechanism 12 is 1.5 m, the total width is 900 mm, the load capacity is 2 t, and the climbing ability is 15°; the traveling motor 123 adopts a hydraulic motor with a flow rate of 800 cc / r, a pressure of 16 Mpa, a torque of 2150 N.m, and a traveling speed of 10 m / min.

[0033] The bottom support mechanism 13 is provided with four groups, and the four groups of bottom support mechanisms 13 are respectively arranged at the four corners of the lower platform of the vehicle body 11. The bottom support mechanism 13 includes a sleeve 131, an adjustment rod 132, a bottom support cylinder 133 and a bottom support plate 134; the sleeve 131 is fixedly connected to the side of the lower platform of the vehicle body 11 and its length direction is along the width direction of the vehicle body 11, the adjustment rod 132 is inserted into the sleeve 131 and can move along the length direction of the sleeve 131, and the adjustment rod 132 is connected to the sleeve 131 through a fastener passing through the sleeve 131 Fixed connection, the sleeve 131 and the adjustment rod 132 are both made of steel pipes; the bottom support cylinder 133 is fixedly connected to the adjustment rod 132, and the bottom support plate 132 is fixedly connected to the moving end of the bottom support cylinder 131, and the bottom support plate 132 is made of a circular steel plate; the bottom support cylinder 131 has a cylinder diameter of 80mm, a rod diameter of 50mm, and a stroke of 400mm; by changing the connection position of the adjustment rod 132 and the sleeve 131, the position of the bottom support cylinder 131 along the width direction of the vehicle body 11 can be adjusted, thereby selecting a suitable support point.

[0034] There are two groups of top support mechanisms 14, which are respectively arranged on both sides of the upper platform of the vehicle body 11. The top support mechanism 14 includes a top support cylinder 141 and a top support plate 142; the top support cylinder 141 is fixedly connected to the top of the upper platform of the vehicle body 11, and the top support plate 142 is hinged at the moving end of the top support cylinder 141, and the top surface of the top support plate 142 is provided with a wavy concave-convex structure; the top support cylinder 141 adopts a multi-stage cylinder, and the top support cylinder 141 has a cylinder diameter of 80mm, a rod diameter of 50mm, and a stroke of 1200mm; the top support plate 142 can swing and the top surface increases the friction through the concave-convex structure, so that the top support mechanism 14 can be more stably supported between the vehicle body 11 and the top plate of the work site.

[0035] The winch driving mechanism 3 can drive the winch 2 to rotate, and the high-pressure hose 4 is wound around the winch 2 and fixedly connected to the winch 2; the hole sealer 5 can be installed at the movable end of the high-pressure hose 4, and the hole sealer 5 is provided with a hydraulic fracturing hole; the high-pressure hose 4 and the hole sealer 5 can pass through the conveying runway 6, and the propulsion mechanism 7 can push or pull the high-pressure hose 4 along the conveying runway 6; the hydraulic pump 8 is fixedly connected to the top of the lower platform of the vehicle body 11 by screws, and each driving mechanism on the hydraulic fracturing continuous conveying device, namely the travel motor 123, the bottom support The cylinder 133, the top support cylinder 141, the winch drive mechanism 3, the first adjusting cylinder 64, the second adjusting cylinder 65, the first clamping cylinder 73, the second clamping cylinder 74 and the propulsion motor 77 all adopt hydraulic drive mechanisms, and the hydraulic pump 8 is used to supply oil to each drive mechanism on the hydraulic fracturing continuous conveying device; the liquid booster pump 9 is fixedly connected to the top of the lower platform of the vehicle body 11 by screws, and the liquid booster pump 9 and the emulsification pump 101 can be connected to one end of the high-pressure hose 4 fixedly connected to the winch 2 through a tee.

[0036] The winch 2 includes a winch body and a winch seat. The winch seat is fixedly connected to the top of the lower platform of the vehicle body 11 by screws. The winch body is rotatably connected to the winch seat. The winch body is welded by two circular steel plates and a steel pipe arranged between the two circular steel plates.

[0037] The winch drive mechanism 3 adopts a hydraulic motor with a flow rate of 195cc / r, a pressure of 16MPa, and a torque of 461N.m.

[0038] The emulsification pump 101 adopts the existing BRW400 / 31.5 emulsification pump in the coal mining face.

[0039] The high-pressure hose 4 adopts a DN25 special high-pressure rubber hose with a length of 35 meters and a pressure resistance of 60Mpa. A pressure sensor 102 and a flow sensor 103 are installed on the high-pressure hose 4. The pressure sensor 102 and the flow sensor 103 are both connected to the acquisition system 104. The pressure sensor 102 and the flow sensor 103 can detect the liquid pressure and flow in the fracturing process in real time and collect them through the acquisition system 104, so as to adjust the liquid flow and pressure in time.

[0040] The hole sealer 5 adopts a two-blocking and one-injection hole sealer, which is pressed by a steel pipe and a rubber hose, Φ73mm, and 2.5m long;

[0041] A wireless transmission drilling imager 105 is installed on the sealer 5, and a displacement sensor 106 is arranged on the wireless transmission drilling imager 105. The wireless transmission drilling imager 105 and the displacement sensor 106 can compare the borehole images during the back and forth transportation of the sealer 5, so as to further guide the fracturing process; the wireless transmission drilling imager 105 is threadedly connected to the top of the sealer 5, and the wireless transmission drilling imager 105 can be removed for charging.

[0042] The transport runway 6 can be extended and adjusted relative to the vehicle body 11, so as to realize hydraulic fracturing of holes drilled at different positions such as the top and the side. The transport runway 6 includes a mounting plate 61, a fixed runway 62, a movable runway 63, a first adjustment cylinder 64 and a second adjustment cylinder 65. The mounting plate 61 is hinged to one side of the upper platform of the vehicle body 11, the fixed runway 62 is welded to the mounting plate 61, the movable runway 63 is movably arranged inside the fixed runway 62, and both ends of the first adjustment cylinder 64 are respectively hinged to the vehicle body 11. At the middle position between the upper platform top of the body 11 and the fixed runway 53, the two ends of the second adjusting cylinder 65 are respectively hinged on the mounting plate 61 and the movable runway 63; the mounting plate 61 is made of steel plate, the fixed runway 62 is made of 12# square steel, and the movable runway 63 is made of 8# square steel; the telescopic movement of the first adjusting cylinder 64 can realize the adjustment of the overall angle of the mounting plate 61, the fixed runway 62 and the movable runway 63, and the telescopic movement of the second adjusting cylinder 65 can realize the telescopic movement of the movable runway 63 along the fixed runway 62.

[0043] The propulsion mechanism 7 includes a driving wheel bracket 71, a driven wheel bracket 72, a first clamping cylinder 73, a second clamping cylinder 74, a driving wheel 75, a driven wheel 76 and a propulsion motor 77; the driving wheel bracket 71 and the driven wheel bracket 72 are symmetrically arranged on both sides of the high-pressure hose 4 and are respectively slidably matched with the mounting plate 61, the first clamping cylinder 73 and the second clamping cylinder 74 are respectively fixedly connected to the mounting plate 61 and the moving ends are respectively fixedly connected to the driving wheel bracket 71 and the driven wheel bracket 72, the driving wheel 75 and the driven wheel 76 are respectively rotatably connected to the driving wheel bracket 71 and the driven wheel bracket 72, and the propulsion motor 77 is fixedly connected It is connected to the driving wheel bracket 71 and the output end is transmission-connected with the driving wheel 75; both the driving wheel 75 and the driven wheel 76 are rubber-coated wheels; the propulsion motor 77 has a flow rate of 400cc / r, a pressure of 16MPa, a torque of 1056N.m, and a conveying speed of 3m / min; the movement of the first clamping cylinder 73 and the second clamping cylinder 74 can realize the clamping or loosening of the high-pressure hose 4 by the driving wheel 75 and the driven wheel 76. When the driving wheel 75 and the driven wheel 76 clamp the high-pressure hose 4, the propulsion motor 77 drives the driving wheel 75 to rotate to realize the advancement or retraction of the high-pressure hose 4, thereby realizing the continuous conveying of the high-pressure hose 4.

[0044] The hydraulic pump 8 adopts a pneumatic pump. The hydraulic pump 8 can be connected to the underground compressed air pipeline, with an input air pressure of 0.4-0.6Mpa, an output pressure of 16Mpa, and a displacement of 29.5L / min.

[0045] The liquid booster pump 9 adopts a pneumatic pump, and the liquid booster pump 9 can be connected to the underground compressed air pipeline, with a driving gas inlet pressure of 0.3-0.8Mpa and a maximum outlet pressure of 65Mpa.

[0046] The method for using the hydraulic fracturing continuous conveying device comprises the following steps:

[0047] Step one, first connect the compressed air pipeline at the work site to the hydraulic pump 8 and the liquid booster pump 9 respectively, connect the water supply pipeline at the work site to the liquid booster pump 9, and connect the liquid booster pump 9 to the tee on one end of the high-pressure hose 4 fixedly connected to the winch 2; then drive the crawler 122 to move through the travel motor 123, so that the hydraulic fracturing continuous conveying device moves to the construction site; after arriving at the construction site, the travel motor 123 stops, and the four groups of bottom support cylinders 133 and the two groups of top support cylinders 141 extend, so that the bottom support mechanism 13 is supported between the vehicle body 11 and the bottom plate of the work site, and the top support mechanism 14 is supported between the vehicle body 11 and the top plate of the work site; then connect the emulsification pump at the construction site to the tee on one end of the high-pressure hose 4 fixedly connected to the winch 2 through the DN25 liquid supply pipeline.

[0048] Step 2: Use the first clamping cylinder 73 and the second clamping cylinder 74 to drive the driving wheel 75 and the driven wheel 76 to loosen the high-pressure hose 4, manually insert the hole sealer 5 into the conveying runway 6 and install the hole sealer 5 to the movable end of the high-pressure hose 4.

[0049] Step three, the first clamping cylinder 73 and the second clamping cylinder 74 drive the driving wheel 75 and the driven wheel 76 to clamp the high-pressure hose 4, and the winch 2 is driven by the winch driving mechanism 3 to rotate to spit out the high-pressure hose 4 wrapped around the winch 2, and at the same time, the driving wheel 75 is driven by the propulsion motor 77 to rotate to propel the high-pressure hose 4 with the hole sealer 5 to the specified depth in the borehole.

[0050] Step 4: Liquid is supplied to the high-pressure hose 4 by the liquid booster pump 9 and the emulsifier pump, and the liquid enters the borehole through the sealer 5 to perform hydraulic fracturing.

[0051] Step 5. After the hydraulic fracturing is completed, turn off the liquid booster pump 9 and the emulsification pump to stop the liquid supply, and drive the winch 2 to rotate in the opposite direction through the winch drive mechanism 3 to wrap the high-pressure hose 4 around the winch 2. At the same time, drive the driving wheel 75 to rotate in the opposite direction through the propulsion motor 77 to pull the high-pressure hose 4 with the hole sealer 5 out of the borehole, manually remove the high-pressure hose 4 from the hole sealer 5 and take the hole sealer 5 out of the conveying runway 5.

[0052] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hydraulic fracturing continuous conveying device, characterized in that: It includes a work vehicle and a winch, a winch driving mechanism, a high-pressure hose, a hole sealer, a conveying runway and a propulsion mechanism arranged on the work vehicle; the winch driving mechanism can drive the winch to rotate, the high-pressure hose is wound around the winch and fixedly connected to the winch; the hole sealer can be installed at the movable end of the high-pressure hose, and the hole sealer is provided with a hydraulic fracturing hole; the conveying runway can be telescopic and the angle can be adjusted relative to the work vehicle, the high-pressure hose and the hole sealer can pass through the conveying runway, and the propulsion mechanism can push or pull the high-pressure hose along the conveying runway.

2. The hydraulic fracturing continuous conveying device according to claim 1, characterized in that: A pressure sensor and a flow sensor are installed on the high-pressure hose, and both the pressure sensor and the flow sensor are connected to a collection system.

3. The hydraulic fracturing continuous conveying device according to claim 1, characterized in that: A wireless transmission drilling imager is installed on the hole sealer, and a displacement sensor is arranged on the wireless transmission drilling imager.

4. The hydraulic fracturing continuous conveying device according to claim 1, characterized in that: The hydraulic fracturing continuous conveying device also includes a hydraulic pump arranged on the working vehicle. Each driving mechanism on the hydraulic fracturing continuous conveying device adopts a hydraulic driving mechanism. The hydraulic pump is used to supply oil to each driving mechanism on the hydraulic fracturing continuous conveying device.

5. The hydraulic fracturing continuous conveying device according to claim 1, characterized in that: The conveying runway includes a mounting plate, a fixed runway, a movable runway, a first adjusting cylinder and a second adjusting cylinder. The mounting plate is hinged to the working vehicle, the fixed runway is fixedly connected to the mounting plate, the movable runway is movably arranged inside the fixed runway, the two ends of the first adjusting cylinder are respectively hinged to the working vehicle and the fixed runway, and the two ends of the second adjusting cylinder are respectively hinged to the mounting plate and the movable runway.

6. The hydraulic fracturing continuous conveying device according to claim 5, characterized in that: The propulsion mechanism includes a driving wheel bracket, a driven wheel bracket, a first clamping cylinder, a second clamping cylinder, a driving wheel, a driven wheel and a propulsion motor. The driving wheel bracket and the driven wheel bracket are symmetrically arranged on both sides of the high-pressure hose and are respectively slidably matched with the mounting plate. The first clamping cylinder and the second clamping cylinder are respectively fixedly connected to the mounting plate and the moving ends are respectively fixedly connected to the driving wheel bracket and the driven wheel bracket. The driving wheel and the driven wheel are respectively rotatably connected to the driving wheel bracket and the driven wheel bracket. The propulsion motor is fixedly connected to the driving wheel bracket and the output end is drivingly connected to the driving wheel.

7. The hydraulic fracturing continuous conveying device according to claim 1, characterized in that: The work vehicle includes a vehicle body, a traveling mechanism, a bottom supporting mechanism and a top supporting mechanism. The traveling mechanism can travel along the bottom plate of the work site. The bottom supporting mechanism can support between the vehicle body and the bottom plate of the work site when the traveling mechanism stops traveling. The top supporting mechanism can support between the vehicle body and the top plate of the work site when the traveling mechanism stops traveling.

8. The hydraulic fracturing continuous conveying device according to claim 7, characterized in that: The traveling mechanism comprises a chassis frame, crawler tracks and a traveling motor. The chassis frame is fixedly connected to the vehicle body. The crawler tracks and the traveling motor are arranged on the chassis frame. The traveling motor can drive the crawler tracks to move.

9. The hydraulic fracturing continuous conveying device according to claim 7, characterized in that: The bottom support mechanism includes a sleeve, an adjusting rod, a bottom support cylinder and a bottom support plate; the sleeve is fixedly connected to the vehicle body and its length direction is along the width direction of the vehicle body, the adjusting rod is inserted into the sleeve and can move along the length direction of the sleeve, and the adjusting rod is fixedly connected to the sleeve by a fastener passing through the sleeve; the bottom support cylinder is fixedly connected to the adjusting rod, and the bottom support plate is fixedly connected to the moving end of the bottom support cylinder.

10. The hydraulic fracturing continuous conveying device according to claim 7, characterized in that: The top support mechanism comprises a top support oil cylinder and a top support plate, wherein the top support oil cylinder is fixedly connected to the vehicle body, the top support plate is hinged at the moving end of the top support oil cylinder, and the top surface of the top support plate is provided with a concave-convex structure.

Images