Hydrostatic pressure self-enhancement pressure testing device for fracturing pump valve box

Abstract

The utility model discloses a fracturing pump valve box static hydraulic pressure self-enhancement pressure testing device which comprises a base, a U-shaped frame is welded on the base, cylinders are symmetrically arranged at the top end of the U-shaped frame, the output ends of the cylinders penetrate through the U-shaped frame and are fixedly connected with a movable plate, a pressure testing assembly is arranged on the movable plate, and the pressure testing assembly is fixedly connected with the U-shaped frame. The pressure test assembly comprises an upper water tank fixedly connected to the bottom end of the moving plate, an exhaust pipe is fixedly connected to one side of the outer surface of the upper water tank, a lower water tank is fixedly connected to the base, and a drainage pipe is fixedly connected to one side of the outer surface of the lower water tank. The end, away from the drainage pipe, of the outer surface of the lower water tank is connected with an air pump through an air inlet pipe, the other end, away from the drainage pipe, of the outer surface of the lower water tank is connected with a water storage tank through a water inlet pipe, and the fracturing pump valve box is located between the upper water tank and the lower water tank, so that pressure test detection of the fracturing pump valve box is achieved. And the qualification detection efficiency of the fracturing pump valve box is improved.

Description

Technical Field

[0001] The utility model relates to a fracturing pump valve box, in particular to a hydrostatic self-enhanced pressure testing device for a fracturing pump valve box. Background Art

[0002] In the current development of shale oil and gas fields, unconventional fracturing operations are the main fracturing operation method. The high-tempo, long-term, and high-intensity harsh operating conditions during the operation have led to a significant decrease in the operating reliability, especially the fatigue life, of the fracturing pump valve box compared to conventional fracturing operations, which in turn affects the entire unconventional fracturing operation process, resulting in a negative increase in risk costs and material costs. Therefore, how to further improve the performance of the valve box so that it can meet the risk and material cost control requirements of unconventional fracturing operations is the current common goal of all fracturing pump valve box manufacturers.

[0003] At present, the existing fracturing pump valve box is not pressure tested during the production process, which leads to unqualified fracturing pump valve boxes. If the unqualified fracturing pump valve box is in operation, the conventional fracturing operation will be greatly reduced, and at the same time, the operation of the entire unconventional fracturing operation will be affected.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] In view of the problems in the related technology, the utility model proposes a fracturing pump valve box static hydraulic self-enhanced pressure testing device to overcome the above technical problems existing in the existing related technology.

[0006] To this end, the specific technical solutions adopted by the utility model are as follows:

[0007] A fracturing pump valve box static hydraulic self-enhanced pressure testing device, comprising a base, a U-shaped frame welded on the base, a cylinder symmetrically arranged on the top of the U-shaped frame, an output end of the cylinder passes through the U-shaped frame and is fixedly connected to a movable plate, the movable plate is slidably connected to the U-shaped frame, sliding grooves are provided on both ends of the inner surface of the U-shaped frame, a static pressure detection component is arranged in the sliding groove, a pressure testing component is arranged on the movable plate, the pressure testing component comprises an upper water tank fixedly connected to the bottom end of the movable plate, an exhaust pipe is fixedly connected to one side of the outer surface of the upper water tank, and the An exhaust cover is threadedly connected to the exhaust pipe, a lower water tank is fixedly connected to the base, a drain pipe is fixedly connected to one side of the outer surface of the lower water tank, a drain cover is threadedly connected to the drain pipe, one end of the outer surface of the lower water tank away from the drain pipe is connected to the air pump via an air inlet pipe, an air inlet valve is fixedly provided on the air inlet pipe, the other end of the outer surface of the lower water tank away from the drain pipe is connected to a water storage tank via a water inlet pipe, a water injection pipe is fixedly installed on the water storage tank, a water inlet valve is fixedly provided on the water inlet pipe, and a water pump is provided at one end of the water inlet pipe away from the water inlet valve.

[0008] Furthermore, in order to perform static pressure detection on the fracturing pump valve box, the static pressure detection component includes an electric push rod fixedly connected to the bottom end of the sliding groove, the output end of the electric push rod is fixedly connected to the lifting plate, the lifting plate is slidably connected to the sliding groove, and a pressure sensor is fixedly connected to the top of the lifting plate.

[0009] Furthermore, in order to prevent the lifting plate from shifting during movement, sliding grooves are provided on both sides of the inner surface of the sliding groove, and sliding blocks are welded on both sides of the outer surface of the lifting plate, and the sliding blocks are slidably connected to the sliding grooves.

[0010] Furthermore, in order to make the movable plate slide stably in the U-shaped frame, sliding blocks are welded on both ends of the outer surface of the movable plate, the sliding blocks are slidably connected to the sliding grooves, a lower pressure plate is fixedly connected to the bottom end of the sliding block, and an anti-collision pad is fixedly connected to the lower pressure plate.

[0011] Furthermore, in order to make the sliding block slide stably in the sliding groove, protruding pieces are welded on both sides of the outer surface of the sliding block, and the protruding pieces are slidably connected to the sliding groove.

[0012] Furthermore, in order to facilitate personnel control, a controller is fixedly installed on one side of the outer surface of the U-shaped frame, and the controller is electrically connected to the electric push rod, the pressure sensor, the air pump, the water pump and the cylinder.

[0013] Furthermore, in order to stabilize the base on the ground, support legs are fixedly connected around the bottom end of the base.

[0014] The beneficial effects of the utility model are:

[0015] 1. First, close the air inlet valve and twist the drain cover to close the drain pipe. At this time, the exhaust pipe is in an open state. Secondly, place the fracturing pump valve box on the lower water tank and fit the suction chamber at the bottom of the fracturing pump valve box with the lower water tank to make the lower water tank and the fracturing pump valve box communicate with each other. The controller makes the cylinder work, and the cylinder drives the moving plate to slide in the U-shaped frame. The movement of the moving plate makes the upper water tank fit with the discharge chamber on the top of the fracturing pump valve box, so that the upper water tank and the fracturing pump valve box communicate with each other, and the plunger packing chamber on the fracturing pump valve box is blocked. Then, the water pump starts working. At the same time, Open the water inlet valve, and the water pump will let the water in the water tank flow to the lower water tank through the water inlet pipe. With the injection of water, the gas in the valve box of the fracturing pump is discharged through the exhaust pipe. When the water flows out through the exhaust pipe, twist the exhaust cover to close the exhaust pipe, and stop the water pump through the controller. At the same time, close the water inlet valve, start the air pump through the controller, and open the air inlet valve. Under the action of the air pump, the pressure is continuously applied to the valve box of the fracturing pump. By observing whether there is any leakage in the valve box of the fracturing pump, the pressure test of the valve box of the fracturing pump is realized, thereby improving the efficiency of the qualification test of the valve box of the fracturing pump,

[0016] 2. By providing a pressure sensor, the static pressure can be detected to avoid excessive static pressure and damage to the fracturing pump valve box. By providing an electric push rod, the position of the pressure sensor can be adjusted to facilitate static pressure detection of fracturing pump valve boxes of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of a fracturing pump valve box static hydraulic self-enhanced pressure testing device according to an embodiment of the utility model;

[0019] Figure 2 It is a rear structural schematic diagram of a fracturing pump valve box static hydraulic self-enhanced pressure testing device according to an embodiment of the utility model;

[0020] Figure 3 It is a cross-sectional view of a fracturing pump valve box static hydraulic self-enhanced pressure testing device according to an embodiment of the utility model;

[0021] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0022] Figure 5 It is a side sectional view of a fracturing pump valve box static hydraulic self-enhanced pressure testing device according to an embodiment of the utility model.

[0023] In the figure:

[0024] 1. Base; 2. U-shaped frame; 3. Cylinder; 4. Moving plate; 5. Sliding groove; 6. Sliding block; 7. Protruding piece; 8. Lower pressure plate; 9. Anti-collision pad; 10. Electric push rod; 11. Lifting plate; 12. Pressure sensor; 13. Sliding groove; 14. Sliding block; 15. Upper water tank; 16. Exhaust pipe; 17. Exhaust cover; 18. Lower water tank; 19. Drain pipe; 20. Drain cover; 21. Intake pipe; 22. Intake valve; 23. Air pump; 24. Water inlet pipe; 25. Water inlet valve; 26. Water pump; 27. Water storage tank; 28. Water filling pipe; 29. ​​Controller; 30. Support leg. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] According to an embodiment of the utility model, a static hydraulic self-enhanced pressure testing device for a fracturing pump valve box is provided.

[0027] Embodiment 1;

[0028] like Figure 1 , Figure 2 and Figure 5As shown, the static hydraulic self-enhanced pressure test device of the fracturing pump valve box according to the embodiment of the utility model includes a pressure test device support base 1, the fracturing pump valve box includes a discharge chamber, a plunger packing chamber and a suction chamber, the discharge chamber is arranged at the top of the fracturing pump valve box, the plunger packing chamber is arranged at the side wall of the fracturing pump valve box, the suction chamber is arranged at the bottom of the fracturing pump valve box, the suction chamber and the discharge chamber are connected in a vertical direction, the plunger packing chamber is connected to the suction chamber, in order to make the base 1 stable on the ground, support legs 30 are fixedly connected around the bottom end of the base 1, a U-shaped frame 2 is welded on the base 1, a controller 29 is fixedly installed on one side of the outer surface of the U-shaped frame 2, the controller 29 is electrically connected to the power supply, and a cylinder 3 is symmetrically arranged on the top of the U-shaped frame 2, and the cylinder 3 is electrically connected to the controller 29 The output end of the cylinder 3 passes through the U-shaped frame 2 and is fixedly connected to the movable plate 4. The movable plate 4 is provided with a pressure test assembly, which includes an upper water tank 15 fixedly connected to the bottom end of the movable plate 4, an exhaust pipe 16 fixedly connected to one side of the outer surface of the upper water tank 15, an exhaust cover 17 threadedly connected to the exhaust pipe 16, a lower water tank 18 fixedly connected to the base 1, a drain pipe 19 fixedly connected to one side of the outer surface of the lower water tank 18, a drain cover 20 threadedly connected to the drain pipe 19, an end of the outer surface of the lower water tank 18 away from the drain pipe 19 is connected to an air pump 23 through an air inlet pipe 21, the air pump 23 is fixedly installed outside the U-shaped frame 2, and the air pump 23 is electrically connected to the controller 29, and is provided with a power supply. The required electric energy is obtained by fixing an air intake valve 22 on the air intake pipe 21, and the other end of the outer surface of the lower water tank 18 away from the drain pipe 19 is connected to the water storage tank 27 through the water intake pipe 24. The water storage tank 27 is fixedly installed outside the U-shaped frame 2, and a water injection pipe 28 is fixedly installed on the water storage tank 27. A water intake valve 25 is fixedly installed on the water intake pipe 24, and a water pump 26 is provided at one end of the water intake pipe 24 away from the water intake valve 25. The water pump 26 is fixedly installed outside the U-shaped frame 2, and the water pump 26 is electrically connected to the controller 29, and the required electric energy is provided by the power supply. The upper water tank 15 and the lower water tank 18 are fixedly connected with sealing gaskets to ensure the sealing between the upper water tank 15 and the lower water tank 18 and the valve box of the fracturing pump. The cylinder 3 moves the movable plate 4 to make the upper water tank 15 and the fracturing pump valve box The fracturing pump valve box is in contact with each other, and the fracturing pump valve box is subjected to static pressure, so that the static pressure self-enhancement treatment can obtain a thicker residual stress strengthening layer in the high stress concentration area of ​​the fracturing pump valve box, so that the fracturing pump valve box obtains a higher fatigue strengthening coefficient, and in the low stress concentration area, the residual stress strengthening layer generated by shot peening is still retained, which is also beneficial to improve the fatigue strengthening coefficient of the fracturing pump valve box. First, close the air inlet valve 22, and twist the drain cover 20 to make the drain pipe 19 in a closed state. At this time, the exhaust pipe 16 is in an open state. Secondly, by placing the fracturing pump valve box on the lower water tank 18, and fitting the suction chamber at the bottom of the fracturing pump valve box with the lower water tank 18, the lower water tank 18 and the fracturing pump valve box are interconnected, and the controller 29 makes the cylinder 3 work.The cylinder 3 drives the moving plate 4 to slide in the U-shaped frame 2. The movement of the moving plate 4 makes the upper water tank 15 fit with the discharge cavity on the top of the fracturing pump valve box, so that the upper water tank 15 and the fracturing pump valve box are interconnected, and the plunger packing cavity on the fracturing pump valve box is blocked. Then, the water pump 26 starts to work. At the same time, the water inlet valve 25 is opened. The water pump 26 flows the water in the water storage tank 27 to the lower water tank 18 through the water inlet pipe 24. With the injection of water, the gas in the fracturing pump valve box is discharged through the exhaust pipe 16. The water flows out through the exhaust pipe 16, and the exhaust cover 17 is twisted to close the exhaust pipe 16, and the water pump 26 is stopped through the controller 29. At the same time, the water inlet valve 25 is closed, and the air pump 23 is started through the controller 29, and the air inlet valve 22 is opened. Under the action of the air pump 23, the pressure is continuously applied to the valve box of the fracturing pump. By observing whether there is leakage in the valve box of the fracturing pump, the pressure test of the valve box of the fracturing pump is realized, thereby improving the efficiency of the qualification test of the valve box of the fracturing pump.

[0029] Embodiment 2:

[0030] See also Figure 1 and Figure 3-Figure 5 In order to perform static pressure detection on the fracturing pump valve box, sliding grooves 5 are provided on both ends of the inner surface of the U-shaped frame 2, and a static pressure detection component is provided in the sliding groove 5. The static pressure detection component includes an electric push rod 10 fixedly connected to the bottom end of the sliding groove 5. The electric push rod 10 is electrically connected to the controller 29 and the required power is provided by the power supply. The output end of the electric push rod 10 is fixedly connected to the lifting plate 11, and the lifting plate 11 is slidably connected to the sliding groove 5. In order to prevent the lifting plate 11 from deflecting during the movement, sliding grooves 13 are provided on both sides of the inner surface of the sliding groove 5, and sliders 14 are welded on both sides of the outer surface of the lifting plate 11. The slider 14 is slidably connected to the sliding groove 13. A pressure sensor 12 is fixedly connected to the top of the lifting plate 11. The pressure sensor 12 model is VH47, and the pressure sensor 12 is electrically connected to the controller 29. The required electric energy is provided by the power supply. The movable plate 4 is slidably connected to the U-shaped frame 2. In order to make the movable plate 4 slide stably in the U-shaped frame 2, sliding blocks 6 are welded on both ends of the outer surface of the movable plate 4, and the sliding blocks 6 are slidably connected to the sliding grooves 5. In order to make the sliding block 6 slide stably in the sliding grooves 5, protrusions 7 are welded on both sides of the outer surface of the sliding block 6, and the protrusions 7 are slidably connected to the sliding grooves 13. A lower pressure plate 8 is fixedly connected to the bottom end of the sliding block 6. In order to prevent the lower pressure plate 8 from damaging the pressure sensor 12, an anti-collision pad 9 is fixedly connected to the lower pressure plate 8. By providing the pressure sensor 12, the static pressure can be detected to prevent the static pressure from being too high and causing damage to the fracturing pump valve box. By providing the electric push rod 10, the position of the pressure sensor 12 can be adjusted, which is convenient for static pressure detection of fracturing pump valve boxes of different specifications.

[0031] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0032] In actual application, first, close the air inlet valve 22, and twist the drain cover 20 to close the drain pipe 19. At this time, the exhaust pipe 16 is in an open state. Secondly, by placing the fracturing pump valve box on the lower water tank 18, and fitting the suction chamber at the bottom of the fracturing pump valve box with the lower water tank 18, the lower water tank 18 and the fracturing pump valve box are interconnected. The controller 29 makes the cylinder 3 work, and the cylinder 3 drives the movable plate 4 to slide in the U-shaped frame 2. The movement of the movable plate 4 makes the upper water tank 15 fit with the discharge chamber on the top of the fracturing pump valve box, so that the upper water tank 15 and the fracturing pump valve box are interconnected, and the plunger packing cavity on the fracturing pump valve box is blocked. Then, the water pump 26 starts to work. At the same time, open the water inlet valve 25, and the water pump 26 flows the water in the water storage tank 27 to the lower water tank 18 through the water inlet pipe 24. As water is injected, the gas in the fracturing pump valve box is discharged through the exhaust pipe 16. When the water flows out through the exhaust pipe 16, the exhaust cover 17 is twisted to close the exhaust pipe 16, and the water pump 26 is stopped by the controller 29. At the same time, the water inlet valve 25 is closed, and the air pump 23 is started to work through the controller 29, and the air inlet valve 22 is opened. Under the action of the air pump 23, pressure is continuously applied to the fracturing pump valve box, and the pressure test of the fracturing pump valve box is realized by observing whether there is leakage in the fracturing pump valve box. By providing a pressure sensor 12, the static pressure can be detected to avoid excessive static pressure and damage to the fracturing pump valve box. By providing an electric push rod 10, the position of the pressure sensor 12 can be adjusted, so as to facilitate static pressure detection of fracturing pump valve boxes of different specifications.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fracturing pump valve box static hydraulic self-enhanced pressure testing device, comprising a base (1), characterized in that: A U-shaped frame (2) is welded to the base (1), a cylinder (3) is symmetrically arranged on the top of the U-shaped frame (2), an output end of the cylinder (3) passes through the U-shaped frame (2) and is fixedly connected to a movable plate (4), the movable plate (4) is slidably connected to the U-shaped frame (2), sliding grooves (5) are provided on both ends of the inner surface of the U-shaped frame (2), a static pressure detection component is arranged in the sliding groove (5), a pressure test component is arranged on the movable plate (4), the pressure test component comprises an upper water tank (15) fixedly connected to the bottom end of the movable plate (4), an exhaust pipe (16) is fixedly connected to one side of the outer surface of the upper water tank (15), an exhaust cover (17) is threadedly connected to the exhaust pipe (16), and a A lower water tank (18), a drain pipe (19) is fixedly connected to one side of the outer surface of the lower water tank (18), a drain cover (20) is threadedly connected to the drain pipe (19), one end of the outer surface of the lower water tank (18) away from the drain pipe (19) is connected to an air pump (23) via an air intake pipe (21), an air intake valve (22) is fixedly provided on the air intake pipe (21), the other end of the outer surface of the lower water tank (18) away from the drain pipe (19) is connected to a water storage tank (27) via a water intake pipe (24), a water injection pipe (28) is fixedly installed on the water storage tank (27), a water intake valve (25) is fixedly provided on the water intake pipe (24), and a water pump (26) is provided on the end of the water intake pipe (24) away from the water intake valve (25).

2. A fracturing pump valve box static hydraulic self-enhanced pressure testing device according to claim 1, characterized in that: The static pressure detection component comprises an electric push rod (10) fixedly connected to the bottom end of the sliding groove (5), the output end of the electric push rod (10) is fixedly connected to a lifting plate (11), the lifting plate (11) is slidably connected to the sliding groove (5), and a pressure sensor (12) is fixedly connected to the top end of the lifting plate (11).

3. A fracturing pump valve box static hydraulic self-enhanced pressure testing device according to claim 2, characterized in that: Slide grooves (13) are provided on both sides of the inner surface of the slide groove (5), and sliding blocks (14) are welded on both sides of the outer surface of the lifting plate (11), and the sliding blocks (14) are slidably connected to the slide grooves (13).

4. A fracturing pump valve box static hydraulic self-enhanced pressure testing device according to claim 3, characterized in that: Sliding blocks (6) are welded on both ends of the outer surface of the movable plate (4), the sliding blocks (6) are slidably connected to the sliding groove (5), a lower pressing plate (8) is fixedly connected to the bottom end of the sliding block (6), and an anti-collision pad (9) is fixedly connected to the lower pressing plate (8).

5. A fracturing pump valve box static hydraulic self-enhanced pressure testing device according to claim 4, characterized in that: Protruding pieces (7) are welded on both sides of the outer surface of the sliding block (6), and the protruding pieces (7) are slidably connected to the sliding groove (13).

6. A fracturing pump valve box static hydraulic self-enhanced pressure testing device according to claim 2, characterized in that: A controller (29) is fixedly mounted on one side of the outer surface of the U-shaped frame (2), and the controller (29) is electrically connected to the electric push rod (10), the pressure sensor (12), the air pump (23), the water pump (26) and the cylinder (3).

7. The fracturing pump valve box static hydraulic self-enhanced pressure testing device according to claim 1, characterized in that: Support legs (30) are fixedly connected around the bottom end of the base (1).

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