CN213574894U - High-efficient mud pump station drive hydraulic system - Google Patents
High-efficient mud pump station drive hydraulic system Download PDFInfo
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- CN213574894U CN213574894U CN202022518261.6U CN202022518261U CN213574894U CN 213574894 U CN213574894 U CN 213574894U CN 202022518261 U CN202022518261 U CN 202022518261U CN 213574894 U CN213574894 U CN 213574894U
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Abstract
The utility model discloses a drag high-efficient mud pump station drive hydraulic system of pipe in-process supplementary directional rig smoothly construction at directional rig belongs to non-excavation directional rig technical field. The variable pump oil outlet is connected to the oil inlet of the integrated valve block; the oil outlet of the integrated valve block is connected to the oil inlet of the variable motor, and the oil outlet of the variable motor is connected to the integrated valve block. Oil ports P1, A1, A2, T1 and T2 are formed in the integrated valve block, and the oil ports P1 and A1 are communicated; the integrated valve block comprises an electromagnetic valve, an overflow valve, a one-way valve and a two-way cartridge valve. The utility model discloses the variable pump adopts active control, but the displacement of proportional variable motor continuous regulation utilizes the integrated valve piece to provide buffering, oil supplementing, backpressure and stop function for the system. In the working process of the directional drilling machine, the discharge capacities of the matching pump and the motor are adjusted in a hydraulic control stepless control mode according to the actual mud flow and pressure requirements, so that the hydraulic system works at the optimal efficiency point, and the working efficiency of a mud pump station is improved.
Description
Technical Field
The utility model relates to a directional rig technical field of non-excavation specifically is a high-efficient mud pump station drive hydraulic system who assists the smooth construction of directional rig at directional rig pipe dragging in-process.
Background
In the construction process of the horizontal directional drilling machine, a slurry pump station is required to pump slurry to assist the drilling machine to smoothly construct from driving to guiding to dragging, the current large-tonnage drilling machine has large variation on the flow and pressure requirements of slurry in the construction process, most of the existing products in the market are mechanical multi-gear speed change, and the customer requirements can not be met to the maximum extent.
Disclosure of Invention
For solving above-mentioned technical problem, improve the efficiency of mud pump station in the work progress, practice thrift the mud cost, the utility model provides an adopt high-efficient mud pump station drive hydraulic system of the electrodeless control mode of liquid accuse.
The utility model discloses a following technical scheme realizes: a high-efficiency slurry pump station driving hydraulic system comprises a variable pump, wherein an oil outlet of the variable pump is connected to an oil inlet of an integrated valve block for buffering and oil supplementing; the oil outlet of the integrated valve block is connected to the oil inlet of the variable motor, and the oil outlet of the variable motor is connected to the integrated valve block.
It further comprises the following steps: oil ports P1, A1, A2, T1 and T2 are formed in the integrated valve block, and the oil ports P1 and A1 are communicated; the integrated valve block comprises an electromagnetic valve, an overflow valve, a one-way valve and a two-way cartridge valve; an oil inlet of the solenoid valve is communicated to the oil port P1, an oil outlet of the solenoid valve is communicated to the two-way cartridge valve, and the other oil inlet of the solenoid valve is communicated to the T1; an oil port at one end of the overflow valve is communicated to the oil port A1, and an oil port at the other end of the overflow valve is communicated to the oil port A2; an oil port at one end of the check valve is communicated to the oil port A1, an oil port at the other end of the check valve is communicated to the oil port A2, and the check valve is communicated from the oil port A2 to the oil port A1 in a one-way mode; an oil inlet of the two-way cartridge valve is communicated to the oil port A2, and an oil outlet of the two-way cartridge valve is communicated to the oil port T2.
The oil port P1 of the integration valve block is communicated to an oil outlet of the uniform variable pump, the oil port A1 is communicated to an oil inlet of the variable motor, the oil port A2 is communicated to an oil outlet of the variable motor, and the oil ports T1 and T2 are communicated to an oil tank.
Compared with the prior art, the beneficial effects of the utility model are that: the variable pump adopts active control, the displacement of the proportional variable motor can be continuously adjusted, and the integrated valve block is utilized to provide buffering, oil supplementing, back pressure and stopping functions for the system. In the working process of the directional drilling machine, the discharge capacities of the matching pump and the motor are adjusted in a hydraulic control stepless control mode according to the actual mud flow and pressure requirements, so that the hydraulic system works at the optimal efficiency point, and the working efficiency of a mud pump station is improved.
Drawings
FIG. 1 is a hydraulic schematic diagram of the present invention;
in the figure: 1. a variable displacement motor; 2. a one-way valve; 3. an overflow valve; 4. a two-way cartridge valve; 5. an electromagnetic valve; 6. an integration valve block; 7. a variable displacement pump.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, in the high-efficiency slurry pump station driving hydraulic system, an oil port A, B of an integration valve block 6 is communicated, an oil port a of the integration valve block 6 is communicated to an oil outlet of a uniform variable pump 3, an oil port B of the integration valve block 6 is communicated to an oil inlet of a variable motor 1, an oil port C of the integration valve block 6 is communicated to an oil outlet of the variable motor 1, and oil ports T1 and T2 of the integration valve block 6 are communicated to an oil tank.
The integrated valve block 6 comprises a solenoid valve 5, an overflow valve 3, a one-way valve 2 and a two-way cartridge valve 4. An oil inlet of the solenoid valve 5 is communicated to the oil port P1, an oil outlet of the solenoid valve 5 is communicated to the two-way cartridge valve 4, and the other oil inlet of the solenoid valve 5 is communicated to the T1. An oil port at one end of the overflow valve 3 is communicated to the oil port A1, and an oil port at the other end of the overflow valve 3 is communicated to the oil port A2. An oil port at one end of the check valve 2 is communicated to the oil port A1, an oil port at the other end of the check valve 2 is communicated to the oil port A2, and the check valve 2 is communicated from the oil port A2 to the oil port A1 in a one-way mode. An oil inlet of the two-way cartridge valve 4 is communicated to the oil port A2, and an oil outlet of the two-way cartridge valve 4 is communicated to the oil port T2.
In the embodiment, the variable displacement pump adopts active control, the displacement of the proportional variable motor can be continuously adjusted, and the integrated valve block is utilized to provide buffering, oil supplementing, back pressure and stopping functions for the system. In the working process of the directional drilling machine, the discharge capacities of the matching pump and the motor are adjusted by utilizing a hydraulic control stepless control mode according to the actual mud flow and pressure requirements, so that a hydraulic system works at the optimal efficiency point, the working efficiency of a mud pump station is improved, the customer requirements are met, and the product performance is improved.
The working principle is as follows:
according to the driving characteristics of the mud pump, the P port of the variable pump is directly connected with the A port of the variable motor, so that the throttling loss of a control valve is reduced compared with a conventional open system, the oil supplementing flow loss is reduced compared with a closed system, the cost is saved, the efficiency is improved, and three control modes, namely constant power control, flow priority control and pressure priority control, are realized;
the constant power control realizes variable power driving by controlling the discharge capacity of a variable pump, and sets a starting point of slurry pressure of a slurry pump by adjusting the discharge capacity of a variable motor;
the flow priority control is realized by jointly controlling the discharge capacities of the variable pump and the variable motor, so that the required flow of the slurry is preferentially ensured;
the pressure priority control is realized by controlling the discharge capacity of the variable pump and the variable motor in a combined manner, so that the required pressure of the slurry is ensured preferentially.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (3)
1. The utility model provides a high-efficient mud pump station drive hydraulic system which characterized in that: the oil outlet of the variable pump (7) is connected to the oil inlet of an integrated valve block (6) for buffering and supplementing oil; an oil outlet of the integrated valve block (6) is connected to an oil inlet of the variable motor (1), and an oil outlet of the variable motor (1) is connected to the integrated valve block (6).
2. The high-efficiency mud pump station driving hydraulic system according to claim 1, characterized in that: oil ports P1, A1, A2, T1 and T2 are formed in the integrated valve block (6), and the oil ports P1 and A1 are communicated; the integrated valve block (6) comprises an electromagnetic valve (5), an overflow valve (3), a one-way valve (2) and a two-way cartridge valve (4); an oil inlet of the electromagnetic valve (5) is communicated to the oil port P1, an oil outlet of the electromagnetic valve (5) is communicated to the two-way cartridge valve (4), and the other oil inlet of the electromagnetic valve (5) is communicated to the T1; an oil port at one end of the overflow valve (3) is communicated to the oil port A1, and an oil port at the other end of the overflow valve (3) is communicated to the oil port A2; an oil port at one end of the check valve (2) is communicated to the oil port A1, an oil port at the other end of the check valve (2) is communicated to the oil port A2, and the check valve (2) is communicated from the oil port A2 to the oil port A1 in a one-way mode; an oil inlet of the two-way cartridge valve (4) is communicated to the oil port A2, and an oil outlet of the two-way cartridge valve (4) is communicated to the oil port T2.
3. The high-efficiency mud pump station driving hydraulic system according to claim 2, characterized in that: an oil port P1 of the integration valve block (6) is communicated to an oil outlet of the uniform variable pump (7), an oil port A1 is communicated to an oil inlet of the variable motor (1), an oil port A2 is communicated to an oil outlet of the variable motor (1), and oil ports T1 and T2 are communicated to an oil tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022518261.6U CN213574894U (en) | 2020-11-04 | 2020-11-04 | High-efficient mud pump station drive hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022518261.6U CN213574894U (en) | 2020-11-04 | 2020-11-04 | High-efficient mud pump station drive hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213574894U true CN213574894U (en) | 2021-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022518261.6U Active CN213574894U (en) | 2020-11-04 | 2020-11-04 | High-efficient mud pump station drive hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213574894U (en) |
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2020
- 2020-11-04 CN CN202022518261.6U patent/CN213574894U/en active Active
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