CN202673817U - High-efficiency energy-saving hydraulic system for petroleum snubbing device - Google Patents
High-efficiency energy-saving hydraulic system for petroleum snubbing device Download PDFInfo
- Publication number
- CN202673817U CN202673817U CN 201220311132 CN201220311132U CN202673817U CN 202673817 U CN202673817 U CN 202673817U CN 201220311132 CN201220311132 CN 201220311132 CN 201220311132 U CN201220311132 U CN 201220311132U CN 202673817 U CN202673817 U CN 202673817U
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- valve
- pilot operated
- valves
- oil
- hydraulic cylinders
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- Expired - Fee Related
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Abstract
The utility model provides a high-efficiency energy-saving hydraulic system for a petroleum snubbing device. The hydraulic system comprises a lifting device, two hydraulic cylinders, two pilot operated check valves, two counterbalance valves, a shuttle valve, a fluidic resistor, a pilot operated proportional directional valve, an overflow valve and a logical valve, wherein a liquid input end is connected with the logical valve and the pilot operated proportional directional valve respectively; the pilot operated proportional directional valve is connected with the two counterbalance valves respectively; the logical valve is connected with the overflow valve which is connected with the shuttle valve through the fluidic resistor; the shuttle valve is connected with the counterbalance valves respectively; the counterbalance valves are connected with one pilot operated check valve respectively; one pilot operated check valve is connected with first oil cavities of the hydraulic cylinders respectively, and the other pilot operated check valve is connected with second oil cavities of the hydraulic cylinders respectively; and pistons of the hydraulic cylinders are connected with the lifting device.
Description
Technical field
The utility model relates to a kind of not kill-job of oil equipment, especially a kind of not kill-job of high-efficiency and energy-saving type oil device hydraulic system.
Background technique
Not kill-job (with pressure) operation refers in the situation that there is pressure in the gas well, not open flow, not kill-job and a kind of method of operation by force is mainly used in Oil/gas Well operation, water injection well maintenance.Existing not kill-job device hydraulic system, exist be not suitable for layering water main Operating Pressure, can not remove the segmentation plugging tubing string, shortcoming that operating platform is high.Owing to oil field well oil pipe bottom is not installed the cycling switch bottom valve usually, necessary lower blanking plug in oil pipe operates extremely inconvenience before the Operating Pressure, and not energy-conservation simultaneously.
The model utility content
The purpose of this utility model provides a kind of not kill-job of high-efficiency and energy-saving type oil device hydraulic system.
Realize not kill-job of the high-efficiency and energy-saving type oil device hydraulic system of the utility model purpose, comprise lowering or hoisting gear, two oil hydraulic cylinders, two Pilot operated check valves, two valves that contend with, shuttle valve, liquid resistance, hydraulic control proportional reversing valve, relief valve and logical valves; Described liquid input end connects respectively logical valve and hydraulic control proportional reversing valve, described hydraulic control proportional reversing valve links to each other with two valves that contend with respectively, described logical valve connects relief valve, described relief valve connects shuttle valve by the liquid resistance, described shuttle valve connects respectively two valves that contend with, described two valves that contend with connect respectively a Pilot operated check valve, and one of them Pilot operated check valve connects respectively the first oil pocket of two oil hydraulic cylinders, and another Pilot operated check valve connects respectively the second oil pocket of two oil hydraulic cylinders; The piston of described two oil hydraulic cylinders connects lowering or hoisting gear.
Described hydraulic control proportional reversing valve and logical valve are connected with back flash.
The beneficial effects of the utility model are as follows: not kill-job of high-efficiency and energy-saving type oil device hydraulic system of the present utility model, adopt differential oil line and balance oil circuit in the control logic valve, and significantly improved working efficiency; Specialized designs differential overflow, realize fully energy-conservation purpose; In whole hydraulic circuit, consider the factor of operating environment, all adopt manually and manual proportional control and the control of pressure autoprotection.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Embodiment of the present utility model is as follows: as shown in Figure 1, not kill-job of high-efficiency and energy-saving type oil device hydraulic system of the present utility model comprises lowering or hoisting gear 1, two oil hydraulic cylinders 2, two Pilot operated check valves 3, two valves 4 that contend with, shuttle valve 6, liquid resistance 5, hydraulic control proportional reversing valve 7, relief valve 9 and logical valves 8; Described liquid input end connects respectively logical valve 8 and hydraulic control proportional reversing valve 7, described hydraulic control proportional reversing valve 7 links to each other respectively at two valves 4 that contend with, described logical valve 8 connects relief valve 9, described relief valve 9 connects shuttle valve 6 by liquid resistance 5, described shuttle valve 6 connects respectively two valves 4 that contend with, described two valves 4 that contend with connect respectively a Pilot operated check valve 3, one of them Pilot operated check valve 3 connects respectively the first oil pocket of two oil hydraulic cylinders 2, and another Pilot operated check valve 3 connects respectively the second oil pocket of two oil hydraulic cylinders 2; The piston of described two oil hydraulic cylinders 2 connects lowering or hoisting gear 1.
Described hydraulic control proportional reversing valve 7 and logical valve 8 are connected with back flash 10.
Embodiment recited above is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; design under the spiritual prerequisite not breaking away from the utility model; various distortion and improvement that the common engineers and technicians in related domain make technical solutions of the utility model all should fall in the definite protection domain of claims of the present utility model.
Claims (2)
1. not kill-job of a high-efficiency and energy-saving type oil device hydraulic system is characterized in that: comprise lowering or hoisting gear, two oil hydraulic cylinders, two Pilot operated check valves, two valves that contend with, shuttle valve, liquid resistance, hydraulic control proportional reversing valve, relief valve and logical valves; Described liquid input end connects respectively logical valve and hydraulic control proportional reversing valve, described hydraulic control proportional reversing valve links to each other with two valves that contend with respectively, described logical valve connects relief valve, described relief valve connects shuttle valve by the liquid resistance, described shuttle valve connects respectively two valves that contend with, described two valves that contend with connect respectively a Pilot operated check valve, and one of them Pilot operated check valve connects respectively the first oil pocket of two oil hydraulic cylinders, and another Pilot operated check valve connects respectively the second oil pocket of two oil hydraulic cylinders; The piston of described two oil hydraulic cylinders connects lowering or hoisting gear.
2. energy-efficient not kill-job of oil device hydraulic system according to claim 1, it is characterized in that: described hydraulic control proportional reversing valve and logical valve are connected with back flash.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220311132 CN202673817U (en) | 2012-06-29 | 2012-06-29 | High-efficiency energy-saving hydraulic system for petroleum snubbing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220311132 CN202673817U (en) | 2012-06-29 | 2012-06-29 | High-efficiency energy-saving hydraulic system for petroleum snubbing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202673817U true CN202673817U (en) | 2013-01-16 |
Family
ID=47494724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220311132 Expired - Fee Related CN202673817U (en) | 2012-06-29 | 2012-06-29 | High-efficiency energy-saving hydraulic system for petroleum snubbing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202673817U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807245A (en) * | 2014-01-21 | 2014-05-21 | 广西柳工机械股份有限公司 | Electric proportional overflow cushion valve for engineering machines |
| CN105114388A (en) * | 2015-08-28 | 2015-12-02 | 中国重型机械研究院股份公司 | Pressure self-adaptive switching hydraulic logic control device for main and auxiliary hydraulic cylinders |
| CN105298971A (en) * | 2015-11-13 | 2016-02-03 | 上海华测导航技术股份有限公司 | Hydraulic control valve bank of automatic steering system of agricultural machine |
| CN109236768A (en) * | 2018-10-22 | 2019-01-18 | 中国石油集团渤海钻探工程有限公司 | A kind of electro-hydraulic proportional control system of delivery device with pressure |
| CN111022406A (en) * | 2019-12-27 | 2020-04-17 | 浙江三一装备有限公司 | Hydraulic locking structure, hydraulic system and engineering machinery |
-
2012
- 2012-06-29 CN CN 201220311132 patent/CN202673817U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807245A (en) * | 2014-01-21 | 2014-05-21 | 广西柳工机械股份有限公司 | Electric proportional overflow cushion valve for engineering machines |
| CN105114388A (en) * | 2015-08-28 | 2015-12-02 | 中国重型机械研究院股份公司 | Pressure self-adaptive switching hydraulic logic control device for main and auxiliary hydraulic cylinders |
| CN105114388B (en) * | 2015-08-28 | 2017-08-25 | 中国重型机械研究院股份公司 | A kind of major-minor cylinder pressure adaptively switches hydraulic logical control device |
| CN105298971A (en) * | 2015-11-13 | 2016-02-03 | 上海华测导航技术股份有限公司 | Hydraulic control valve bank of automatic steering system of agricultural machine |
| CN109236768A (en) * | 2018-10-22 | 2019-01-18 | 中国石油集团渤海钻探工程有限公司 | A kind of electro-hydraulic proportional control system of delivery device with pressure |
| CN111022406A (en) * | 2019-12-27 | 2020-04-17 | 浙江三一装备有限公司 | Hydraulic locking structure, hydraulic system and engineering machinery |
| CN111022406B (en) * | 2019-12-27 | 2021-09-17 | 浙江三一装备有限公司 | Hydraulic locking structure, hydraulic system and engineering machinery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20150629 |
|
| EXPY | Termination of patent right or utility model |