CN220791619U - Variable-frequency energy-saving hydraulic station - Google Patents
Variable-frequency energy-saving hydraulic station Download PDFInfo
- Publication number
- CN220791619U CN220791619U CN202321191750.2U CN202321191750U CN220791619U CN 220791619 U CN220791619 U CN 220791619U CN 202321191750 U CN202321191750 U CN 202321191750U CN 220791619 U CN220791619 U CN 220791619U
- Authority
- CN
- China
- Prior art keywords
- driving motor
- plunger pump
- energy
- storage tank
- hydraulic station
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004146 energy storage Methods 0.000 claims abstract description 18
- 230000005611 electricity Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model relates to the field of hydraulic stations, in particular to a variable-frequency energy-saving hydraulic station. The hydraulic station comprises an oil cylinder, an energy storage tank and a plunger pump, wherein the oil cylinder, the energy storage tank and the plunger pump are all connected together through pipelines, a driving motor is connected to the plunger pump, the driving motor is electrically connected to a driver, a pressure sensor is mounted on the pipelines, and the pressure sensor is electrically connected with the driving motor. The utility model uses the oil cylinder, the energy storage tank, the plunger pump, the driving motor and the driver to form a closed-loop control loop, uses the flow required by actual action as a target to control the pressure and regulate the rotating speed of the driving motor, realizes reasonable output of the pump flow, effectively reduces the difference between the output flow of the pump and the flow required by action, and reduces the energy consumption loss.
Description
Technical Field
The utility model relates to the field of hydraulic stations, in particular to a variable-frequency energy-saving hydraulic station.
Background
The existing hydraulic station is a control system formed by an asynchronous motor, a variable plunger pump, an overflow valve, a one-way valve and a load, and for the system, when the flow required by machine action is smaller than the flow output by an oil pump, the redundant flow can be unloaded through the overflow valve under the working pressure, so that energy loss is caused, such as efficiency loss is not considered, and the wasted energy is approximately as follows: w=po× (Q-Qo) ×t/600, where: the W-idle work, po-working pressure, Q-pump output flow, qo-action required flow, T-time, it can be seen from the formula that the higher the working pressure, the slower the action speed, the longer the working time (the motor always operates at rated rotation speed in actual operation), and the more energy is wasted.
Disclosure of Invention
In order to overcome the defects of low efficiency and high energy consumption of the existing hydraulic station, the utility model provides a variable-frequency energy-saving hydraulic station.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides an energy-conserving hydraulic pressure station of frequency conversion, includes hydro-cylinder, energy storage tank, plunger pump, hydro-cylinder, energy storage tank, plunger pump all link together through the pipeline, be connected with driving motor on the plunger pump, driving motor electricity is connected on the driver, installs pressure sensor on the pipeline, and pressure sensor is connected with driving motor electricity.
According to another embodiment of the utility model, it is further comprised that the piping is a three-way piping.
According to another embodiment of the utility model, the energy storage tank is provided with a check valve on a pipeline between the energy storage tank and the plunger pump.
According to another embodiment of the utility model, the hydraulic control system further comprises a direction valve arranged on a pipeline between the oil cylinder and the energy storage tank.
According to another embodiment of the present utility model, it is further included that the driving motor is a servo motor.
According to another embodiment of the utility model, it is further comprised that the actuator is a hydraulic servo actuator.
The utility model has the beneficial effects that the oil cylinder, the energy storage tank, the plunger pump, the driving motor and the driver form a closed-loop control loop, the pressure is controlled and the rotating speed of the driving motor is regulated by taking the flow required by actual action as a target, the reasonable output of the pump flow is realized, the difference between the output flow of the pump and the flow required by action is effectively reduced, and the energy consumption loss is reduced.
Drawings
The utility model will be further described with reference to the drawings and examples.
FIG. 1 is a schematic diagram of the structure of the present utility model;
in the figure, the oil cylinder is 1, the energy storage tank is 2, the plunger pump is 3, the driving motor is 4, the driver is 5, the pressure sensor is 6, the one-way valve is 7, and the direction valve is 8.
Detailed Description
Fig. 1 is a schematic structural view of the present utility model.
As shown in fig. 1, the variable-frequency energy-saving hydraulic station comprises an oil cylinder 1, an energy storage tank 2 and a plunger pump 3, wherein the oil cylinder 1, the energy storage tank 2 and the plunger pump 3 are all connected together through pipelines, a driving motor 4 is connected to the plunger pump 3, the driving motor 4 is electrically connected to a driver 5, a pressure sensor 6 for identifying the pressure on the pipeline is arranged on the pipeline, and the pressure sensor 6 is electrically connected with the driving motor 4.
The pipeline is a three-way pipeline.
A one-way valve 7 is arranged on the pipeline between the energy storage tank 2 and the plunger pump 3.
A direction valve 8 is arranged on a pipeline between the oil cylinder 1 and the energy storage tank 2.
The driving motor 4 is a servo motor.
The actuator 5 is a hydraulic servo actuator.
The hydraulic station can regulate and control the original hydraulic power and an oil way system according to the working condition of the field device. In the process of regulation, when the flow required by machine action does not reach the system set pressure, the driver 5 executes a speed closed-loop control mode, the driving motor 4 rotates at a set rotating speed, the system pressure continuously rises at the moment, after the flow required by machine action reaches the system set pressure, the driving motor 4 executes a pressure closed-loop control mode, the servo system is only responsible for maintaining the pressure constant, the rotating speed of the driving motor 4 is adaptively regulated according to the system flow demand, the actual action flow is taken as a target to control the pressure and regulate the rotating speed of the driving motor 4, the reasonable output of the flow of the plunger pump 3 is realized, the difference between the output flow of the plunger pump 3 and the flow required by action is effectively reduced, the energy consumption loss is reduced, and the working process of the hydraulic station is more energy-saving.
Claims (6)
1. The utility model provides an energy-conserving hydraulic pressure station of frequency conversion, includes hydro-cylinder (1), energy storage tank (2), plunger pump (3), and hydro-cylinder (1), energy storage tank (2), plunger pump (3) are all in the same place through the pipeline connection, characterized by, be connected with driving motor (4) on plunger pump (3), driving motor (4) electricity is connected on driver (5), installs pressure sensor (6) on the pipeline, and pressure sensor (6) are connected with driving motor (4) electricity.
2. The variable frequency, energy efficient hydraulic station of claim 1, wherein the piping is a three-way piping.
3. The variable frequency energy-saving hydraulic station according to claim 1, characterized in that a one-way valve (7) is arranged on a pipeline between the energy storage tank (2) and the plunger pump (3).
4. The variable frequency energy-saving hydraulic station according to claim 1, wherein a direction valve (8) is arranged on a pipeline between the oil cylinder (1) and the energy storage tank (2).
5. A variable frequency energy saving hydraulic station according to claim 1, characterized in that the drive motor (4) is a servo motor.
6. A variable frequency, energy efficient hydraulic station according to claim 1, characterized in that the drive (5) is a hydraulic servo drive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321191750.2U CN220791619U (en) | 2023-05-17 | 2023-05-17 | Variable-frequency energy-saving hydraulic station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321191750.2U CN220791619U (en) | 2023-05-17 | 2023-05-17 | Variable-frequency energy-saving hydraulic station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220791619U true CN220791619U (en) | 2024-04-16 |
Family
ID=90652898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321191750.2U Active CN220791619U (en) | 2023-05-17 | 2023-05-17 | Variable-frequency energy-saving hydraulic station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220791619U (en) |
-
2023
- 2023-05-17 CN CN202321191750.2U patent/CN220791619U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102513413B (en) | Hydraulic control system for novel servo pump control bending machine | |
| CN102420552B (en) | Control loop and control method for improving starting and stopping performance of motor | |
| CN111649023B (en) | Buffering oil supplementing system and method for electro-hydraulic double-control motor driving rotation system | |
| CN108591144B (en) | Hydraulic system of motor-driven double-dosing pump double-accumulator distributed direct-drive excavator | |
| CN110296110B (en) | Double-energy cabin door transient actuating system | |
| CN113251013B (en) | Electro-hydraulic direct-drive servo closed differential control driving system of stepping lifting mechanism | |
| CN201507505U (en) | Hydraulic station electromotor intermittent starting booster unit | |
| CN220791619U (en) | Variable-frequency energy-saving hydraulic station | |
| CN214063418U (en) | Efficient and energy-saving hydraulic system of metal hydraulic packing machine | |
| CN109267599A (en) | The excavator dynamical system that distributed two parallel pumps directly drive | |
| CN202356469U (en) | Novel hydraulic control system of servo pump-controlled bending machine | |
| CN202116932U (en) | Hydraulic system of pulp package pressing machine | |
| CN109340204B (en) | Cluster type hydraulic system for numerical control machining | |
| CN114962395B (en) | Hybrid new energy hydraulic pumping unit | |
| CN102705211B (en) | A kind of variable pump small displacement and little pressure control loop and control method thereof | |
| CN110056549A (en) | A kind of the lifting hydraulic cylinder potential energy recovery system and method for automatic control | |
| CN210265308U (en) | Energy-saving motor driving hydraulic system | |
| CN211202067U (en) | Energy-saving turbine EH oil station | |
| JP2003013907A (en) | Electro-hydraulic actuator for compression molding machine, injection molding machine or the like | |
| CN201780971U (en) | Energy-saving servo pump semiconductor packaging compressor | |
| CN210313298U (en) | Hydraulic power unit for hydraulic lifting machine | |
| CN215214159U (en) | Servo driving system and ultrahigh pressure equipment adopting same | |
| CN206754017U (en) | A kind of energy-saving hydraulic pumping plant for TRT fast cut valves | |
| CN221097018U (en) | Servo pump control hydraulic system of down-driven numerical control bending machine | |
| CN219865670U (en) | Hydraulic pump station of two-way confluence |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |