Hydraulic buffer self-adaptive system for derrick and base of petroleum drilling machine
By automating the control of the buffer cylinder through a modular hydraulic control unit, the problems of complex operation and poor safety of traditional oil drilling equipment are solved, thereby improving the safety and efficiency of drilling operations.
Patent Information
- Application Number
- CN202520492529.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-03-20
AI Technical Summary
Traditional oil drilling equipment's hydraulic buffer system is complex to operate, has poor safety, and lacks load adaptability, resulting in low operating efficiency.
It adopts a modular hydraulic control unit, integrating a direct-acting relief valve and a pilot relief valve. The working mode is switched by a ball valve to realize the automated control of the buffer cylinder and adapt to the load changes during lifting and lowering.
It has achieved a highly automated and safe buffer system, which has improved the safety and efficiency of drilling operations and simplified the operation process.
Smart Images
Figure CN223739751U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to petroleum drilling equipment technical field, concretely is a kind of petroleum drilling rig mast, base hydraulic buffer adaptive system. BACKGROUND
[0002] Mast and base bear important supporting role in petroleum drilling operation, its hoisting process is easy to cause equipment damage and security risk due to heavy weight, inertia impact is strong. Traditional hydraulic buffer system relies on manual operation, needs to adjust reversing valve at hoisting end to control buffer cylinder retraction, it is tedious to operate and low in precision, cannot adapt to load dynamic change, lead to inefficiency, insufficient safety. In addition, existing system lacks the ejection function when lowering, further limits operation efficiency. Therefore, there is an urgent need for a buffer system with high degree of automation and load adaptive capability. SUMMARY
[0003] The utility model aims at providing a kind of petroleum drilling rig mast, base hydraulic buffer adaptive system to solve the problems, such as the operation of traditional system is complex, poor safety and lack of load adaptation.
[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of petroleum drilling rig mast, base hydraulic buffer adaptive system, including hydraulic power source and the hoisting operation box being connected with hydraulic power source, left cylinder control valve and right cylinder control valve are integrated in the hoisting operation box, left cylinder control valve and right cylinder control valve are connected with the output end of hydraulic power source respectively for controlling the flow direction of hydraulic oil;The output end of left cylinder control valve and right cylinder control valve is connected to the oil inlet of left buffer cylinder and right buffer cylinder by oil circuit respectively;Left buffer cylinder and right buffer cylinder one end are connected with mast or base, the other end is fixed with drilling rig main body;At the same time, first hydraulic control check valve and second hydraulic control check valve are respectively arranged in the rodless loop of left buffer cylinder and right buffer cylinder for limiting the one-way flow of oil;
[0005] Direct acting overflow valve and pilot overflow valve are integrated in the rodless loop of left buffer cylinder and right buffer cylinder respectively for setting the maximum pressure of hoisting buffer and lowering ejection;Ball valve is connected between direct acting overflow valve and pilot overflow valve and the working mode of overflow valve is switched by the opening or closing of ball valve;Pressure gauge is further provided at the front end of pilot overflow valve, and the pressure gauge is connected with direct acting overflow valve and pilot overflow valve in parallel, for real-time monitoring and display circuit pressure.
[0006] Preferably, the direct acting overflow valve sets the buffer pressure by the open state of ball valve during hoisting, and the pilot overflow valve sets the ejection pressure by the closed state of ball valve during lowering.
[0007] Preferably, the first hydraulic control check valve, the second hydraulic control check valve, the direct acting relief valve and the pilot relief valve are integrated on the same valve block to form a modular hydraulic control unit.
[0008] Preferably, the left cylinder control valve and the right cylinder control valve are electromagnetic reversing valves, which are linked with a rig hoisting control circuit to realize automatic control of the buffer cylinder action.
[0009] The working process of the utility model is as follows:
[0010] In the utility model, in the process of hoisting, the ball valve is opened, the direct acting relief valve sets the buffer pressure, the left cylinder control valve and the right cylinder control valve are electrified to make the left buffer cylinder and the right buffer cylinder extend, and the hydraulic control check valve is conducted.
[0011] The utility model has the advantages of:
[0012] (1) The utility model cooperates the dynamic pressure regulation of the relief valve and the hydraulic control check valve, and the system automatically adapts to the load change in hoisting and lowering without manual intervention.
[0013] (2) The utility model retracts the buffer cylinder to buffer the impact in hoisting and provides support in lowering, and integrates the two functions.
[0014] (3) The utility model adopts modular design, integrates the valve group on the same valve block, simplifies the pipeline layout and improves the system reliability.
[0015] (4) The utility model is convenient to operate, the control valve is integrated in the operation box and is linked with the main control of the rig to realize one-key operation. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 The utility model is a system principle diagram, wherein:
[0017] 1-left buffer cylinder, 2-right buffer cylinder, 3-first hydraulic control check valve, 4-second hydraulic control check valve, 5-direct acting relief valve, 6-ball valve, 7-pilot relief valve, 8-pressure gauge, 9-right cylinder control valve, 10-left cylinder control valve, 11-main pressure gauge. DETAILED DESCRIPTION
[0018] The utility model will be further described in detail in combination with the drawings.
[0019] For example, Figure 1The hydraulic buffer self-adaptive system of a drilling rig mast and base comprises a hydraulic power source and a lifting operation box connected with the hydraulic power source, the left cylinder control valve 10 and the right cylinder control valve 9 are integrated in the lifting operation box, the left cylinder control valve 10 and the right cylinder control valve 9 are connected with the output end of the hydraulic power source for controlling the flow direction of the hydraulic oil, the output end of the left cylinder control valve 10 and the right cylinder control valve 9 is connected with the oil inlet of the left buffer cylinder 1 and the right buffer cylinder 2 through an oil path, one end of the left buffer cylinder 1 and the right buffer cylinder 2 is connected with the mast or the base, and the other end is fixed with the main body of the drilling rig, meanwhile, the first hydraulic control check valve 3 and the second hydraulic control check valve 4 are arranged in the rodless cavity of the left buffer cylinder 1 and the right buffer cylinder 2 respectively for limiting the one-way flow of the oil, the direct overflow valve 5 and the pilot overflow valve 7 are integrated in the rodless cavity of the left buffer cylinder 1 and the right buffer cylinder 2 respectively for setting the maximum pressure of the lifting buffer and the lowering ejection, the ball valve 6 is connected between the direct overflow valve 5 and the pilot overflow valve 7 and the working mode of the overflow valve is switched through the opening or closing of the ball valve 6, and the pressure gauge 8 is arranged at the front end of the pilot overflow valve 7 and is connected with the direct overflow valve 5 and the pilot overflow valve 7 in parallel for monitoring and displaying the circuit pressure in real time.
[0020] The direct overflow valve 5 adjusts the buffer pressure through the opening state of the ball valve 6 in the lifting process, and the pilot overflow valve 7 adjusts the ejection pressure through the closing state of the ball valve 6 in the lowering process.
[0021] The first hydraulic control check valve 3, the second hydraulic control check valve 4, the direct overflow valve 5 and the pilot overflow valve 7 are integrated on the same valve block to form a modular hydraulic control unit.
[0022] The left cylinder control valve 10 and the right cylinder control valve 9 are electromagnetic reversing valves and are connected with the lifting control circuit of the drilling rig to realize the automatic control of the buffer cylinder action.
[0023] The working process of the utility model is as follows:
[0024] In the lifting process, the ball valve 6 is opened, the direct overflow valve 5 adjusts the buffer pressure, the left cylinder control valve 10 and the right cylinder control valve 9 are electrified to make the left buffer cylinder 1 and the right buffer cylinder 2 stretch out, and the hydraulic control check valve 4 is conducted; when the base contacts the buffer cylinder, the pressure of the rodless cavity is increased, the direct overflow valve 5 is relieved, the buffer cylinder is retracted to complete the buffer. In the lowering process, the ball valve 6 is closed, the pilot overflow valve 7 adjusts the ejection pressure, the left cylinder control valve 10 and the right cylinder control valve 9 are switched in direction, the hydraulic control check valve 3 is conducted, the buffer cylinder stretches out to provide the ejection force, and the stable lowering is ensured.
[0025] The utility model discloses the above design, the safety and efficiency of drilling operation are improved obviously, have extensive engineering application value.
[0026] The above is only the preferred example of the present application. It should be pointed out that for those skilled in the art, under the technical inspiration provided by the present application, as the common knowledge in the mechanical field, other equivalent modifications and improvements can also be made, and should also be considered as the protection scope of the present application.
Claims
1. A hydraulic cushion adaptive system for a drilling rig derrick and substructure, comprising a hydraulic power source and a hoist control box connected to the hydraulic power source, characterized in that: The left cylinder control valve (10) and the right cylinder control valve (9) are integrated in the lifting operation box, and the left cylinder control valve (10) and the right cylinder control valve (9) are connected with the output end of the hydraulic power source respectively for controlling the flow direction of the hydraulic oil; the output ends of the left cylinder control valve (10) and the right cylinder control valve (9) are connected to the oil inlets of the left buffer cylinder (1) and the right buffer cylinder (2) through oil paths respectively; one end of the left buffer cylinder (1) and the right buffer cylinder (2) is connected with the derrick or the base, and the other end is fixed with the drilling rig body; meanwhile, the first hydraulic control check valve (3) and the second hydraulic control check valve (4) are arranged in the rodless circuits of the left buffer cylinder (1) and the right buffer cylinder (2) respectively for limiting the one-way flow of the oil. The direct overflow valve (5) and the pilot overflow valve (7) are integrated in the rodless circuits of the left buffer cylinder (1) and the right buffer cylinder (2) respectively for setting the maximum pressure of the lifting buffer and the lowering ejection; the ball valve (6) is connected between the direct overflow valve (5) and the pilot overflow valve (7) and switches the working mode of the overflow valve through the opening or closing of the ball valve (6); the pressure gauge (8) is further arranged at the front end of the pilot overflow valve (7), and the pressure gauge (8) is connected with the direct overflow valve (5) and the pilot overflow valve (7) in parallel, for monitoring and displaying the circuit pressure in real time.
2. The hydraulic cushion self-adaptive system for drilling rig derrick and substructure of claim 1, wherein: The direct overflow valve (5) sets the buffer pressure through the opening state of the ball valve (6) in the lifting process, and the pilot overflow valve (7) sets the ejection pressure through the closed state of the ball valve (6) in the lowering process.
3. The hydraulic cushion self-adaptive system for drilling rig derrick and substructure according to claim 1 or 2, characterized in that: The first hydraulic control check valve (3), the second hydraulic control check valve (4), the direct overflow valve (5) and the pilot overflow valve (7) are integrated on the same valve block to form a modular hydraulic control unit.
4. The hydraulic cushion self-adaptive system for drilling rig derrick and substructure of claim 3, wherein: The left cylinder control valve (10) and the right cylinder control valve (9) are electromagnetic reversing valves, and are linked with the drilling rig lifting control circuit to realize the automatic control of the buffer cylinder action.