CN112012974A - Novel hydraulic synchronous control system for lifting and lowering of oil drilling machine - Google Patents
Novel hydraulic synchronous control system for lifting and lowering of oil drilling machine Download PDFInfo
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- CN112012974A CN112012974A CN202010857672.XA CN202010857672A CN112012974A CN 112012974 A CN112012974 A CN 112012974A CN 202010857672 A CN202010857672 A CN 202010857672A CN 112012974 A CN112012974 A CN 112012974A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/22—Synchronisation of the movement of two or more servomotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
Abstract
The invention discloses a novel hydraulic synchronous control system for lifting and lowering an oil drilling machine, belongs to the field of oil drilling and production equipment, and solves the problem that a traditional hydraulic synchronous control system is complex to operate. The plug cavity and the rod cavity of the left hydraulic cylinder are respectively connected with a left cylinder regulating valve through a left cylinder balance valve, the plug cavity and the rod cavity of the right hydraulic cylinder are respectively connected with a right cylinder regulating valve through a right cylinder balance valve, and a synchronous control valve, the left cylinder regulating valve and the right cylinder regulating valve are respectively connected with a P port and a T port of an operation box; the plug cavity of the left hydraulic cylinder is sequentially connected with the third hydraulic control one-way valve, the flow distributing and collecting valve and the synchronous control valve through a left cylinder balance valve, and the rod cavity is sequentially connected with the fourth hydraulic control one-way valve and the synchronous control valve through the left cylinder balance valve; the piston cavity of the right hydraulic cylinder is sequentially connected with the first hydraulic control one-way valve, the flow distributing and collecting valve and the synchronous control valve through a right cylinder balance valve, and the rod cavity is sequentially connected with the second hydraulic control one-way valve and the synchronous control valve through the right cylinder balance valve. The invention has the advantages of quick and convenient operation, safety and reliability.
Description
Technical Field
The invention belongs to the field of petroleum drilling and production equipment, and particularly relates to a novel hydraulic synchronous control system for lifting and lowering a petroleum drilling machine.
Background
Along with the continuous improvement of the automation degree of the oil drilling machine, the lifting mode of the drilling machine adopts a hydraulic cylinder jacking mode more and more. In practical application, under the influence of factors such as the left and right unbalance of a derrick and a base of a drilling machine, the left and right hydraulic cylinders are asynchronous in the lifting and lowering processes of the drilling machine, and the left and right hydraulic cylinders are synchronous by adjusting a hydraulic valve. The conventional synchronous regulation system has the following problems:
1. the operation is complex, and the safety and the reliability are low. When the left hydraulic cylinder and the right hydraulic cylinder are not synchronous and need to be adjusted, the left hydraulic cylinder and the right hydraulic cylinder need to be matched with each other through 2 operating handles, the adjusting difficulty is high, and certain operating experience is often needed. If the operation is not matched properly, the derrick and the base can be distorted or deformed, or the piston rod of the hydraulic cylinder can be broken due to overhigh pressure.
2. The manual operation control, work efficiency is low. In the traditional hydraulic synchronous control system, in the process of adjusting the left hydraulic cylinder and the right hydraulic cylinder to synchronize the hydraulic cylinders, the hydraulic cylinders with larger retraction extension are adopted to keep the hydraulic cylinders with smaller extension in synchronization, repeated operation is needed for many times, the time for lifting or lowering the derrick and the base of the drilling machine is increased, and the working efficiency is low.
In summary, the following steps: the traditional hydraulic synchronous control system has the advantages of low automation degree, complex operation process, low safety and reliability, high energy consumption and low efficiency, and can not completely meet the requirement of safe operation of lifting and lowering the drilling machine.
Disclosure of Invention
The invention aims to provide a novel hydraulic synchronous control system for lifting and lowering an oil drilling machine, and aims to solve the problems of complex operation, low safety, low reliability and low working efficiency of the traditional hydraulic synchronous control system.
The technical scheme of the invention is as follows: a novel hydraulic synchronous control system for lifting and lowering of an oil drilling machine comprises a left hydraulic cylinder, a right hydraulic cylinder, a left cylinder regulating valve, a right cylinder regulating valve, a left cylinder balance valve, a right cylinder balance valve and an operation box, wherein the left cylinder balance valve is installed on the left hydraulic cylinder, a plug cavity and a rod cavity of the left hydraulic cylinder are respectively connected with the left cylinder regulating valve through the left cylinder balance valve, the right cylinder balance valve is installed on the right hydraulic cylinder, and the plug cavity and the rod cavity of the right hydraulic cylinder are respectively connected with the right cylinder regulating valve through the right cylinder balance valve; the hydraulic control system also comprises a synchronous control valve, a flow distributing and collecting valve, a first hydraulic control one-way valve, a second hydraulic control one-way valve, a third hydraulic control one-way valve and a fourth hydraulic control one-way valve, wherein the synchronous control valve, a left cylinder regulating valve and a right cylinder regulating valve are integrated on the operation box, the synchronous control valve, the left cylinder regulating valve and the right cylinder regulating valve are in parallel connection, and the synchronous control valve, the left cylinder regulating valve and the right cylinder regulating valve are respectively connected with a port P and a port T of the operation box; the plug cavity of the left hydraulic cylinder is sequentially connected with the third hydraulic control one-way valve, the flow distributing and collecting valve and the synchronous control valve through a left cylinder balance valve, and the rod cavity of the left hydraulic cylinder is sequentially connected with the fourth hydraulic control one-way valve and the synchronous control valve through a left cylinder balance valve; the piston cavity of the right hydraulic cylinder is sequentially connected with the first hydraulic control one-way valve, the flow distributing and collecting valve and the synchronous control valve through a right cylinder balance valve, and the rod cavity of the right hydraulic cylinder is sequentially connected with the second hydraulic control one-way valve and the synchronous control valve through a right cylinder balance valve.
As a further improvement of the invention, the device also comprises a pressure control valve which is respectively connected with the P port and the T port of the operation box. The pressure control valve plays a role in safety protection, and when the pressure of the port P exceeds the set pressure of the pressure control valve, the overhigh pressure is released.
As a further improvement of the invention, the hydraulic control system further comprises a pressure display meter which is respectively connected with the synchronous control valve, the left cylinder regulating valve, the right cylinder regulating valve, the pressure control valve and the P port of the operation box. The pressure display meter is used for observing the high-pressure oil supply pressure.
As a further improvement of the invention, the flow distributing and collecting valve, the first hydraulic control one-way valve, the second hydraulic control one-way valve, the third hydraulic control one-way valve, the fourth hydraulic control one-way valve, the pressure control valve and the pressure display meter are all integrated on the operation box.
As a further improvement of the invention, the synchronous control valve, the left cylinder regulating valve and the right cylinder regulating valve adopt manual valves, and control handles of the manual valves are arranged on the operation box and can be locally controlled.
As a further improvement of the invention, the synchronous control valve, the left cylinder regulating valve and the right cylinder regulating valve adopt electromagnetic valves, and remote control can be realized.
The invention has the beneficial effects that: the invention provides a novel hydraulic synchronous control system for lifting and lowering a derrick and a base of an oil drilling machine, aiming at the problems that 2 control handles are required to be operated simultaneously during the lifting and lowering of the derrick and the base of the drilling machine in the past, and the safety and the reliability are low due to repeated operation for many times, only a synchronous control valve needs to be operated during the synchronization adjustment, so that the operation is quick, convenient, safe and reliable, the repeated operation and the misoperation for many times are avoided, and the working efficiency of the lifting and lowering of the drilling machine is improved. The invention can be suitable for the environments such as land, sea, desert, polar region and the like, and can realize the service performance which is convenient, safe and efficient to operate.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the figure: 1 is a left hydraulic cylinder; 2-1 is a left cylinder balance valve; 2-2 is a right cylinder balance valve; 3 is a right hydraulic cylinder; 4-1 is a first hydraulic control one-way valve; 4-2 is a second hydraulic control one-way valve; 5-1 is a third hydraulic control one-way valve; 5-2 is a fourth hydraulic control one-way valve; 6 is a flow distributing and collecting valve; 7 is a pressure control valve; 8 is a synchronous control valve; 9 is a pressure display meter; 10 is a right cylinder regulating valve; 11 is a left cylinder regulating valve; 12 is an operation box.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
As shown in figure 1, the novel hydraulic synchronous control system for lifting and lowering of the oil drilling machine comprises a left hydraulic cylinder 1, a right hydraulic cylinder 3, a left cylinder regulating valve 11, a right cylinder regulating valve 10, a left cylinder balance valve 2-1, a right cylinder balance valve 2-2 and an operation box 12, wherein the left cylinder balance valve 2-1 is installed on the left hydraulic cylinder 1, a plug cavity and a rod cavity of the left hydraulic cylinder 1 are respectively connected with the left cylinder regulating valve 11 through the left cylinder balance valve 2-1, the right cylinder balance valve 2-2 is installed on the right hydraulic cylinder 3, and the plug cavity and the rod cavity of the right hydraulic cylinder 3 are respectively connected with the right cylinder regulating valve 10 through the right cylinder balance valve 2-2; the hydraulic control system further comprises a synchronous control valve 8, a flow distributing and collecting valve 6, a first hydraulic control one-way valve 4-1, a second hydraulic control one-way valve 4-2, a third hydraulic control one-way valve 5-1 and a fourth hydraulic control one-way valve 5-2, wherein the synchronous control valve 8, a left cylinder regulating valve 11 and a right cylinder regulating valve 10 are integrated on an operation box 12, and the synchronous control valve 8, the left cylinder regulating valve 11 and the right cylinder regulating valve 10 are respectively connected with a port P and a port T of the operation box 12; a plug cavity of the left hydraulic cylinder 1 is sequentially connected with a third hydraulic control one-way valve 5-1, a flow distributing and collecting valve 6 and a synchronous control valve 8 through a left cylinder balance valve 2-1, and a rod cavity of the left hydraulic cylinder 1 is sequentially connected with a fourth hydraulic control one-way valve 5-2 and the synchronous control valve 8 through the left cylinder balance valve 2-1; the plug cavity of the right hydraulic cylinder 3 is sequentially connected with the first hydraulic control one-way valve 4-1, the flow distributing and collecting valve 6 and the synchronous control valve 8 through the right cylinder balance valve 2-2, and the rod cavity of the right hydraulic cylinder 3 is sequentially connected with the second hydraulic control one-way valve 4-2 and the synchronous control valve 8 through the right cylinder balance valve 2-2.
And the device also comprises a pressure control valve 7, and the pressure control valve 7 is respectively connected with a port P and a port T of the operation box 12.
The device also comprises a pressure display meter 9, wherein the pressure display meter 9 is respectively connected with the P ports of the synchronous control valve 8, the left cylinder regulating valve 11, the right cylinder regulating valve 10, the pressure control valve 7 and the operation box 12.
The flow distributing and collecting valve 6, the first hydraulic control one-way valve 4-1, the second hydraulic control one-way valve 4-2, the third hydraulic control one-way valve 5-1, the fourth hydraulic control one-way valve 5-2, the pressure control valve 7 and the pressure display meter 9 are all integrated on the operation box 12.
The synchronous control valve 8, the left cylinder regulating valve 11 and the right cylinder regulating valve 10 adopt manual valves.
The synchronous control valve 8, the left cylinder regulating valve 11 and the right cylinder regulating valve 10 adopt electromagnetic valves.
The ports P and T of the operation box 12 are connected to the ports P and T of the hydraulic power source. The operation process is as follows:
the drilling machine synchronously rises: the synchronous control valve 8 is operated to be switched to the right position, high-pressure oil is evenly divided into two parts through the flow distributing and collecting valve 6, and one part of the high-pressure oil enters a plug cavity of the right hydraulic cylinder 4 through the first hydraulic control one-way valve 4-1 and the right cylinder balance valve 2-2; the other part enters a plug cavity of the left hydraulic cylinder 1 through a third hydraulic control one-way valve 5-1 and a left cylinder balance valve 2-1. The high-pressure oil is evenly distributed with flow through the flow distributing and collecting valve 6, so that the flow entering the left hydraulic cylinder 1 and the flow entering the right hydraulic cylinder 3 are the same, the hydraulic cylinders synchronously extend out, and the drilling machine synchronously rises.
Synchronously adjusting the drilling machine during lifting: taking the example that the left hydraulic cylinder 1 stretches out greatly in the lifting process of the drilling machine, the synchronous control valve 8 is operated to be reversed to a middle position, the middle position of the synchronous control valve 8 can be Y-shaped, control oil of the first hydraulic control one-way valve 4-1, the second hydraulic control one-way valve 4-2, the third hydraulic control one-way valve 5-1 and the fourth hydraulic control one-way valve 5-2 is communicated with an oil tank through the middle position of the synchronous control valve 8, the first hydraulic control one-way valve 4-1, the second hydraulic control one-way valve 4-2, the third hydraulic control one-way valve 5-1 and the fourth hydraulic control one-way valve 5-2 are closed reversely, and the left hydraulic cylinder 1 and the right hydraulic cylinder 3 are stopped and locked by the left cylinder balance valve 2-1 and the right cylinder balance valve 2-2 respectively. And operating the right cylinder regulating valve 10 to change the direction to the right position, and allowing high-pressure oil to enter the plug cavity of the right hydraulic cylinder 3 through the right position of the right cylinder regulating valve 10 and the balance valve 2-2 so that the extension amount of the right hydraulic cylinder 4 is the same as that of the left hydraulic cylinder 1.
Synchronously lowering the drilling machine: the synchronous control valve 8 is operated to be reversed to the left position, high-pressure oil enters a rod cavity of the right hydraulic cylinder 3 through the second hydraulic control one-way valve 4-2 and the right cylinder balance valve 2-2, hydraulic oil in a plug cavity of the right hydraulic cylinder 3 passes through the right cylinder balance valve 2-2, the first hydraulic control one-way valve 4-1, the shunt throttle valve 6 and the synchronous control valve 8 and returns to an oil tank; meanwhile, high-pressure oil enters a rod cavity of the left hydraulic cylinder 1 through the fourth hydraulic control one-way valve 5-2 and the left cylinder balance valve 2-1, and hydraulic oil in a plug cavity of the left hydraulic cylinder 1 returns to an oil tank through the left cylinder balance valve 2-1, the third hydraulic control one-way valve 5-1, the flow distributing and collecting valve 6 and the synchronous control valve 8. The hydraulic oil in the plug cavities of the left hydraulic cylinder 1 and the right hydraulic cylinder 3 is evenly distributed with flow through the flow distributing and collecting valve 6, so that the outflow flow of the left hydraulic cylinder 1 and the outflow flow of the right hydraulic cylinder 3 are the same, the hydraulic cylinders retract synchronously, and the drilling machine is synchronously lowered.
Synchronously adjusting the drill when the drill is lowered: taking the larger retraction amount of the left hydraulic cylinder 1 in the lowering process of the drilling machine as an example, the synchronous control valve 8 is operated to be reversed to a middle position, the middle position of the synchronous control valve 8 can be in a Y shape, control oil of the first hydraulic control one-way valve 4-1, the second hydraulic control one-way valve 4-2, the third hydraulic control one-way valve 5-1 and the fourth hydraulic control one-way valve 5-2 is communicated with an oil tank through the middle position of the synchronous control valve 8, so that the first hydraulic control one-way valve 4-1, the second hydraulic control one-way valve 4-2, the third hydraulic control one-way valve 5-1 and the fourth hydraulic control one-way valve 5-2 are all closed reversely, and the left hydraulic cylinder 1 and the right hydraulic cylinder 3 are stopped and locked by the left cylinder balance valve 2-1 and the right cylinder balance valve 2-2. The right cylinder regulating valve 10 is operated to change the direction to the left position, and high-pressure oil enters the rod cavity of the right hydraulic cylinder 3 through the left position of the right cylinder regulating valve 10 and the right cylinder balance valve 2-2, so that the retraction amount of the right hydraulic cylinder 3 is the same as that of the left hydraulic cylinder 1.
When the system pressure exceeds the set pressure of the pressure control valve 7, the valve opens to stabilize the system pressure at the set value of the pressure control valve 7. The pressure display meter 9 is always connected with the port P of the operation box, and the high-pressure oil supply pressure value of the system can be observed in real time during operation of the system.
The invention gives full play to the automatic control performance of the hydraulic system, simplifies the operation mode and improves the working safety and reliability of the system; the synchronous operation control mode is more flexible, and the working efficiency is higher.
Claims (6)
1. A novel hydraulic synchronous control system for lifting and lowering of an oil drilling machine comprises a left hydraulic cylinder, a right hydraulic cylinder, a left cylinder regulating valve, a right cylinder regulating valve, a left cylinder balance valve, a right cylinder balance valve and an operation box, wherein the left cylinder balance valve is installed on the left hydraulic cylinder, a plug cavity and a rod cavity of the left hydraulic cylinder are respectively connected with the left cylinder regulating valve through the left cylinder balance valve, the right cylinder balance valve is installed on the right hydraulic cylinder, and the plug cavity and the rod cavity of the right hydraulic cylinder are respectively connected with the right cylinder regulating valve through the right cylinder balance valve; the method is characterized in that: the hydraulic control system is characterized by further comprising a synchronous control valve (8), a flow distributing and collecting valve (6), a first hydraulic control one-way valve (4-1), a second hydraulic control one-way valve (4-2), a third hydraulic control one-way valve (5-1) and a fourth hydraulic control one-way valve (5-2), wherein the synchronous control valve (8), a left cylinder regulating valve (11) and a right cylinder regulating valve (10) are integrated on the operation box (12), and the synchronous control valve (8), the left cylinder regulating valve (11) and the right cylinder regulating valve (10) are respectively connected with a port P and a port T of the operation box (12); a plug cavity of the left hydraulic cylinder (1) is sequentially connected with a third hydraulic control one-way valve (5-1), a flow distributing and collecting valve (6) and a synchronous control valve (8) through a left cylinder balance valve (2-1), and a rod cavity of the left hydraulic cylinder (1) is sequentially connected with a fourth hydraulic control one-way valve (5-2) and the synchronous control valve (8) through a left cylinder balance valve (2-1); a plug cavity of the right hydraulic cylinder (3) is sequentially connected with the first hydraulic control one-way valve (4-1), the flow distributing and collecting valve (6) and the synchronous control valve (8) through the right cylinder balance valve (2-2), and a rod cavity of the right hydraulic cylinder (3) is sequentially connected with the second hydraulic control one-way valve (4-2) and the synchronous control valve (8) through the right cylinder balance valve (2-2).
2. The novel hydraulic synchronous control system for lifting and lowering of the oil rig according to claim 1, is characterized in that: the device also comprises a pressure control valve (7), wherein the pressure control valve (7) is respectively connected with a port P and a port T of the operation box (12).
3. The novel hydraulic synchronous control system for lifting and lowering of the oil rig according to claim 2, is characterized in that: the device is characterized by further comprising a pressure display meter (9), wherein the pressure display meter (9) is respectively connected with P ports of the synchronous control valve (8), the left cylinder regulating valve (11), the right cylinder regulating valve (10), the pressure control valve (7) and the operation box (12).
4. The novel hydraulic synchronous control system for lifting and lowering of the oil rig according to claim 3, characterized in that: the flow distributing and collecting valve (6), the first hydraulic control one-way valve (4-1), the second hydraulic control one-way valve (4-2), the third hydraulic control one-way valve (5-1), the fourth hydraulic control one-way valve (5-2), the pressure control valve (7) and the pressure display meter (9) are integrated on the operation box (12).
5. The novel hydraulic synchronous control system for lifting and lowering of the oil rig according to any one of claims 1 to 4, characterized in that: and the synchronous control valve (8), the left cylinder regulating valve (11) and the right cylinder regulating valve (10) adopt manual valves.
6. The novel hydraulic synchronous control system for lifting and lowering of the oil rig according to any one of claims 1 to 4, characterized in that: the synchronous control valve (8), the left cylinder regulating valve (11) and the right cylinder regulating valve (10) adopt electromagnetic valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010857672.XA CN112012974A (en) | 2020-08-24 | 2020-08-24 | Novel hydraulic synchronous control system for lifting and lowering of oil drilling machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010857672.XA CN112012974A (en) | 2020-08-24 | 2020-08-24 | Novel hydraulic synchronous control system for lifting and lowering of oil drilling machine |
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| CN112012974A true CN112012974A (en) | 2020-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010857672.XA Pending CN112012974A (en) | 2020-08-24 | 2020-08-24 | Novel hydraulic synchronous control system for lifting and lowering of oil drilling machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113027843A (en) * | 2021-04-14 | 2021-06-25 | 中煤科工集团重庆研究院有限公司 | Load-sensitive synchronous regulation hydraulic lifting system for drilling machine |
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| CN202971368U (en) * | 2012-12-10 | 2013-06-05 | 徐州重型机械有限公司 | Hydro-cylinder locking device, double-cylinder hydraulic control system and lifting device |
| CN204281092U (en) * | 2014-11-12 | 2015-04-22 | 徐州重型机械有限公司 | A kind of two-tank method and separately control system and hoisting crane |
| CN107830001A (en) * | 2017-11-28 | 2018-03-23 | 湖南星邦重工有限公司 | A kind of scissor aerial work platform and its hydraulic system |
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2020
- 2020-08-24 CN CN202010857672.XA patent/CN112012974A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201187290Y (en) * | 2007-08-01 | 2009-01-28 | 宝鸡石油机械有限责任公司 | Hydraulic synchronous compensating system in oil rig operation |
| CN102498261A (en) * | 2009-06-26 | 2012-06-13 | 阿特拉斯·科普柯凿岩设备有限公司 | Control system, rock drill rig and control method |
| CN202090903U (en) * | 2011-04-27 | 2011-12-28 | 宝鸡石油机械有限责任公司 | Hydraulic synchronous ascending control device |
| CN202971368U (en) * | 2012-12-10 | 2013-06-05 | 徐州重型机械有限公司 | Hydro-cylinder locking device, double-cylinder hydraulic control system and lifting device |
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| CN113027843A (en) * | 2021-04-14 | 2021-06-25 | 中煤科工集团重庆研究院有限公司 | Load-sensitive synchronous regulation hydraulic lifting system for drilling machine |
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