CN217502119U - Energy-saving control system of pressure compensation pump of oilfield equipment - Google Patents
Energy-saving control system of pressure compensation pump of oilfield equipment Download PDFInfo
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- CN217502119U CN217502119U CN202221633676.0U CN202221633676U CN217502119U CN 217502119 U CN217502119 U CN 217502119U CN 202221633676 U CN202221633676 U CN 202221633676U CN 217502119 U CN217502119 U CN 217502119U
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Abstract
The utility model provides an energy-saving control system of oilfield equipment pressure compensating pump, include: the hydraulic control system comprises a hydraulic oil tank, a pressure compensation pump, a reversing valve, a remote control overflow valve and a load sensitive multi-way valve, wherein an oil inlet of the pressure compensation pump is connected with the hydraulic oil tank, an X port of the pressure compensation pump is connected with an LS port of the load sensitive multi-way valve or a P port of the remote control overflow valve through the reversing valve, and a T port of the remote control overflow valve is connected with the hydraulic oil tank. The beneficial effects of the utility model are that owing to adopt above-mentioned technical scheme, under the prerequisite that only uses a pressure compensating pump, the pressure compensating pump both can export the hydraulic oil of constant pressure and flow, also can export pressure and the hydraulic oil that flow adaptation executive component actual need, and the power waste is few, energy saving and emission reduction.
Description
Technical Field
The utility model relates to a hydraulic equipment technical field, specific is an energy-saving control system of oilfield equipment pressure compensating pump.
Background
In the process of oil exploitation, various oilfield equipment such as well testing equipment, well logging equipment, coiled tubing equipment and the like are involved, and because the wellhead of an oil well can contain combustible gas, a pressure compensation pump is mostly adopted as a power source from the viewpoint of safety. The clamping system, the tensioning system, the brake system and the like in the oil well equipment need constant pressure and flow of a hydraulic oil source due to the action requirements of the actuating elements, but the specific oil pressure and flow required by different actuating elements are different. Generally, the system pressure of the constant pressure oil source required by the clamping system, the tensioning system and the brake system is low.
In the pipe-reversing operation or the liquid pumping operation before the oil extraction operation, the hydraulic oil source is required to provide higher system pressure so as to meet the requirements of related operations on oil quantity and oil pressure, and the system pressure provided by the hydraulic oil source is required to be adjustable, namely matched with the flow and pressure required by the execution element so as to reduce the waste of power consumption.
In the prior art, in order to adapt to a low-pressure working condition and a high-pressure working condition, a hydraulic system is generally provided with a double-pump hydraulic oil source containing a low-power pressure compensation pump and a high-power pressure compensation pump, and the double-pump hydraulic oil source is respectively adapted to the low-pressure working condition and the high-pressure working condition. The situation that the low-power pressure compensation pump and the high-power pressure compensation pump work simultaneously is less, and the problem of low resource utilization rate exists to a certain extent in the mode of a double-pump hydraulic oil source in the prior art. In some prior arts, only one hydraulic oil source driven by a high-power pressure compensation pump is used as a hydraulic oil source under low-pressure and high-pressure working conditions, so that the resource utilization efficiency is improved. The hydraulic oil source of the single pressure compensation pump needs to be provided with a load sensitive multi-way valve, the output power of the pressure compensation pump is adjusted, and the pressure compensation pump is respectively suitable for different working conditions so as to achieve the purpose of energy conservation. However, when the hydraulic oil source of the single-pressure compensation pump is applied to a low-pressure working condition, high power consumption is wasted, the oil pressure and the flow of the hydraulic oil source are not constant, and the requirement of part of execution elements on the constant-pressure oil source is difficult to meet. Therefore, control systems employing load sensitive multi-way valves need to be further optimized.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an energy-saving control system of oil field equipment pressure compensating pump satisfies high pressure, the different operating mode of low pressure to hydraulic oil source demand through a pressure compensating pump, and equipment utilization efficiency is high, and the consumption is extravagant few, the simple operation.
The technical scheme of the utility model is that:
an energy-saving control system of an oilfield equipment pressure compensating pump is characterized by comprising: the hydraulic control system comprises a hydraulic oil tank, a pressure compensation pump, a reversing valve, a remote control overflow valve and a load sensitive multi-way valve, wherein an oil inlet of the pressure compensation pump is connected with the hydraulic oil tank, an X port of the pressure compensation pump is connected with an LS port of the load sensitive multi-way valve or a P port of the remote control overflow valve through the reversing valve, and a T port of the remote control overflow valve is connected with the hydraulic oil tank.
The utility model discloses a X mouth that the switching-over valve made the pressure compensating pump links to each other with the LS mouth of the sensitive multiple unit valve of load or the P mouth of the remote control overflow valve to the pressure and the flow that the adjustment pressure compensating pump was exported make its demand that satisfies different work condition, through the utility model discloses can be under the prerequisite that only uses a pressure compensating pump, can satisfy the needs of different work condition to the hydraulic oil source.
In particular, the method comprises the following steps of,
when the valve core of the reversing valve is located at the first position, the X port of the pressure compensation pump is connected with the P port of the remote control overflow valve, the X port of the pressure compensation pump is disconnected with the LS port of the load sensitive multi-way valve, and the pressure compensation pump outputs hydraulic oil with specific pressure and flow, so that the requirements of a rapid clamping system, a tensioning system and a braking system on a constant pressure oil source are met.
Furthermore, the flow and the pressure output by the pressure compensation pump can be adjusted by adjusting the remote control overflow valve, so that the specific hydraulic oil source requirements of different execution elements are met, and the power consumption waste caused by the low power requirements of the execution elements due to the high power output of the pressure compensation pump is reduced. When a plurality of actuating elements work simultaneously, the remote control overflow valve is adjusted to the maximum pressure.
When the valve core of the reversing valve is located at the second position, the X port of the pressure compensation pump is disconnected with the P port of the remote control overflow valve, the X port of the pressure compensation pump is communicated with the LS port of the load sensitive multi-way valve, and the control of the output flow and the output pressure of the pressure compensation pump is realized through the load sensitive multi-way valve, so that the requirements of actions such as pipe reversing, liquid pumping and the like on the adjustment of the oil pressure and the flow of a hydraulic oil source are met, and the waste of power is reduced.
Specifically, the actuating element feeds back to the pressure compensation pump through the LS port of the load-sensitive multi-way valve, so that the flow and the pressure output by the pressure compensation pump are equal to the pressure and the flow required by the actual actuating element, and the power waste is reduced to a great extent.
Specifically, the reversing valve is any one of a manual control reversing valve, a hydraulic control reversing valve and an electromagnetic control reversing valve.
Preferably, the reversing valve is a manually controlled reversing valve.
Specifically, the remote control overflow valve is any one of a manual control overflow valve, a hydraulic control overflow valve and an electromagnetic control overflow valve.
Preferably, the remote control overflow valve is a manual control overflow valve.
And a pressure gauge is connected to an M2 port of the pressure compensation pump, so that real-time monitoring is realized during operation, and equipment abnormity is timely discovered.
The utility model has the advantages and positive effects that: by adopting the technical scheme, on the premise of only using one pressure compensation pump, the pressure compensation pump can output hydraulic oil with constant pressure and flow, and can also output hydraulic oil with pressure and flow adapting to actual needs of the actuating element, so that the power waste is less, and the energy is saved and the emission is reduced.
Drawings
FIG. 1 is a schematic view of the structure principle of the present invention
In the figure:
1. hydraulic oil tank 2, pressure compensation pump 3 and reversing valve
4. Remote control overflow valve 5, load sensitive multi-way valve 6 and actuating element
Detailed Description
As shown in fig. 1, the utility model discloses:
an energy-saving control system of an oilfield equipment pressure compensating pump, comprising: the hydraulic control system comprises a hydraulic oil tank 1, a pressure compensation pump 2, a reversing valve 3, a remote control overflow valve 4 and a load sensitive multi-way valve 5, wherein an oil inlet of the pressure compensation pump 2 is connected with the hydraulic oil tank 1, an X port of the pressure compensation pump 2 is connected with an LS port of the load sensitive multi-way valve 5 or a P port of the remote control overflow valve 4 through the reversing valve 3, a T port of the remote control overflow valve 4 is connected with the hydraulic oil tank 1, and an oil outlet of the pressure compensation pump 2 outputs hydraulic oil to an execution element 6.
Specifically, the change valve 3 is a manually controlled change valve.
Specifically, the remote control overflow valve 4 is a manual control overflow valve.
A pressure gauge is connected to the port M2 of the pressure compensation pump 2.
The working process of the example is as follows:
first, the change valve 3 is switched so that the spool of the change valve 3 is located at the first position, and at this time, the port X of the pressure compensation pump 2 is communicated with the port P of the remote control overflow valve 4. When the pressure compensation pump 2 is started, the remote control overflow valve 4 is adjusted to unload the system, so that the no-load starting of the pressure compensation pump 2 is realized. During operation, the remote control overflow valve 4 is adjusted, the proportional output of a constant-pressure oil source of the system is realized, and the quick opening and closing requirements of systems such as tensioning, clamping and braking in the operation process are met.
Secondly, in preparation work before oil extraction operation, for example, when a pipe is poured and liquid pumping operation is carried out, the reversing valve 3 is switched to enable the valve core of the reversing valve 3 to be located at the second position, and at the moment, the X port of the pressure compensation pump 2 is communicated with the LS port of the load sensitive multi-way valve 5. When the pressure compensation pump 2 is started, oil at the X port of the pressure compensation pump 2 is unloaded through the LS port of the load sensitive multi-way valve 5, and the no-load starting of the pressure compensation pump 2 is achieved. During operation, the load-sensitive multi-way valve 5 is switched, and the pressure of the actuating element 6 is fed back to the pressure compensation pump 2 through the LS port of the load-sensitive multi-way valve 5, so that the output pressure and the flow of the system are equal to the flow of the pressure required by the actual actuating element 6, and the power waste is greatly reduced.
And a pressure gauge on the M2 port monitors whether equipment abnormality exists in real time.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (4)
1. An energy-saving control system of an oilfield equipment pressure compensating pump is characterized by comprising: the hydraulic control system comprises a hydraulic oil tank, a pressure compensation pump, a reversing valve, a remote control overflow valve and a load sensitive multi-way valve, wherein an oil inlet of the pressure compensation pump is connected with the hydraulic oil tank, an X port of the pressure compensation pump is connected with an LS port of the load sensitive multi-way valve or a P port of the remote control overflow valve through the reversing valve, and a T port of the remote control overflow valve is connected with the hydraulic oil tank.
2. The energy-saving control system of the oilfield equipment pressure compensating pump of claim 1, wherein: the reversing valve is any one of a manual control reversing valve, a hydraulic control reversing valve and an electromagnetic control reversing valve.
3. The energy-saving control system of the oilfield equipment pressure compensating pump of claim 1, wherein: the remote control overflow valve is any one of a manual control overflow valve, a hydraulic control overflow valve and an electromagnetic control overflow valve.
4. The energy-saving control system of the oilfield equipment pressure compensating pump of claim 1, wherein: and a pressure gauge is connected to the M2 port of the pressure compensation pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221633676.0U CN217502119U (en) | 2022-06-28 | 2022-06-28 | Energy-saving control system of pressure compensation pump of oilfield equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221633676.0U CN217502119U (en) | 2022-06-28 | 2022-06-28 | Energy-saving control system of pressure compensation pump of oilfield equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217502119U true CN217502119U (en) | 2022-09-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221633676.0U Active CN217502119U (en) | 2022-06-28 | 2022-06-28 | Energy-saving control system of pressure compensation pump of oilfield equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217502119U (en) |
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2022
- 2022-06-28 CN CN202221633676.0U patent/CN217502119U/en active Active
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