CN201963617U - Hydraulic system of energy accumulator - Google Patents
Hydraulic system of energy accumulator Download PDFInfo
- Publication number
- CN201963617U CN201963617U CN2010206634205U CN201020663420U CN201963617U CN 201963617 U CN201963617 U CN 201963617U CN 2010206634205 U CN2010206634205 U CN 2010206634205U CN 201020663420 U CN201020663420 U CN 201020663420U CN 201963617 U CN201963617 U CN 201963617U
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- CN
- China
- Prior art keywords
- accumulator
- energy accumulator
- pressure
- valve
- way valve
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a hydraulic system of an energy accumulator. A piston type energy accumulator is connected with a hydraulic control one-way valve; a control oil path of the hydraulic control one-way valve is connected with an oil chamber of the energy accumulator; the hydraulic control one-way valve is provided with an electromagnetic reversing valve and a throttle valve; and the air chamber of the piston type energy accumulator is connected with a nitrogen bottle. When the hydraulic system is adopted, the on/off of the hydraulic control one-way valve is controlled through the pressure of oil liquid in the energy accumulator; when the pressure in the energy accumulator is too low, the hydraulic control one-way valve cannot be opened, and the oil liquid can only flow in a single direction; when the pressure in the energy accumulator reaches an opening pressure of the hydraulic control one-way valve, the hydraulic control one-way valve is opened, and the oil liquid can flow in two directions; and therefore, the pressure in the energy accumulator cannot be too low, and the safety of the system is increased.
Description
Technical field
The utility model belongs to Hydraulic Field, relates to accumulator, especially a kind of accumulator hydraulic system.
Background technique
Especially hydraulic shock power is big, the system that pressure peak is high.In hydraulic system,, usually accumulator can be installed near hydraulic station in order to realize the storage pressure energy, absorb hydraulic shock, to eliminate requirements such as pressure pulsation, moment repairing.But existing accumulator system can not carry out the control of flow and pressure to the fluid that accumulator is got back in the system, and is big in hydraulic shock power, and in the high system of pressure peak, using effect is also not obvious.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of simple in structure, reasonable in design, safe and reliable, the accumulator hydraulic system that can carry out flow and speed controlling to the fluid of accumulator system is provided.
The utility model realizes that the technological scheme of purpose is as follows:
A kind of accumulator hydraulic system, piston accumulator connects a Pilot operated check valve, the control oil channel of this Pilot operated check valve is connected to the accumulator oil pocket, and this Pilot operated check valve is equipped with a solenoid directional control valve and a throttle valve, and the air cavity of piston accumulator connects nitrogen bottle.
And the control oil channel of described Pilot operated check valve is connected to the accumulator oil pocket by pressure gauge.
And the air cavity of described piston accumulator is connected nitrogen bottle by pressure gauge with safety valve.
Advantage of the present utility model and good effect are:
1, native system is controlled the unlatching and the closure of Pilot operated check valve by the pressure of fluid in the accumulator, and when the hypotony in the accumulator, Pilot operated check valve can't be opened, and fluid can only one-way flow; When the pressure in the accumulator reached the cracking pressure of Pilot operated check valve, Pilot operated check valve was opened, and fluid can be realized two-way flow, had guaranteed that thus the pressure in the accumulator was unlikely to low, had increased the Security of system.
2, native system can make the fluid in the accumulator get back in the system slowly by the flow and the pressure of throttle valve adjustment Pilot operated check valve control oil.Thereby reduce hydraulic shock power, the elimination pressure pulsation of system greatly.
3, native system is when system cut-off, by the solenoid directional control valve commutation, can make fluid in the accumulator and the fluid oil sump tank in the system, and system decompression is avoided after the termination of pumping fluid in the accumulator to get back to and caused firm misoperation in the system.
Description of drawings
Fig. 1 is the utility model hydraulic system structure connection diagram.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and by specific embodiment, and following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
A kind of accumulator hydraulic system, form by solenoid directional control valve HXF, throttle valve JLF, Pilot operated check valve YKF, piston accumulator PT, nitrogen bottle N, safety valve AQF etc., described piston accumulator connects a Pilot operated check valve, the control oil channel of this Pilot operated check valve is connected to accumulator oil pocket T by a safety valve Y1, shows hydraulic fluid pressure in the accumulator by pressure gauge; This Pilot operated check valve is equipped with a solenoid directional control valve and a throttle valve, with realization the direction and the flow of Pilot operated check valve is controlled; The air cavity of piston accumulator is connected nitrogen bottle (N1, N2, N3, N4, N5, present embodiment show five nitrogen bottles altogether) by pressure gauge Y2 with safety valve, guarantee that by pressure gauge and safety valve security of system is reliable.
Working principle of the present utility model is:
1YA gets electricly during system works, and the pressure oil that enters into accumulator in the system enters into the control mouth of Pilot operated check valve through throttle valve and solenoid directional control valve; When pressure is lower than the cracking pressure of Pilot operated check valve, the Pilot operated check valve closure, fluid can only unidirectionally flow in the accumulator.When pressure was higher than the cracking pressure of Pilot operated check valve, Pilot operated check valve was opened, and formed path between hydraulic system and the accumulator, but system's proper functioning.
During shutdown, or solenoid valve commutation during sudden power, the fluid that enters into the fluid of accumulator and accumulator itself passes through solenoid valve and gets back to fuel tank, system decompression.
Also can manually allow 1YA cut off the power supply during system works, make the solenoid valve commutation be used for draining.
Claims (3)
1. accumulator hydraulic system, it is characterized in that: piston accumulator connects a Pilot operated check valve, the control oil channel of this Pilot operated check valve is connected to the accumulator oil pocket, and this Pilot operated check valve is equipped with a solenoid directional control valve and a throttle valve, and the air cavity of piston accumulator connects nitrogen bottle.
2. accumulator hydraulic system according to claim 1 is characterized in that: the control oil channel of described Pilot operated check valve is connected to the accumulator oil pocket by pressure gauge.
3. accumulator hydraulic system according to claim 1 is characterized in that: the air cavity of described piston accumulator is connected nitrogen bottle by pressure gauge with safety valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206634205U CN201963617U (en) | 2010-12-16 | 2010-12-16 | Hydraulic system of energy accumulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206634205U CN201963617U (en) | 2010-12-16 | 2010-12-16 | Hydraulic system of energy accumulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201963617U true CN201963617U (en) | 2011-09-07 |
Family
ID=44526152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206634205U Expired - Fee Related CN201963617U (en) | 2010-12-16 | 2010-12-16 | Hydraulic system of energy accumulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201963617U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107366642A (en) * | 2017-06-22 | 2017-11-21 | 镇江四联机电科技有限公司 | A kind of movable type hydraulic pumping plant |
| CN109237281A (en) * | 2017-07-10 | 2019-01-18 | 中国石油天然气股份有限公司 | Compressor energy-storage system |
-
2010
- 2010-12-16 CN CN2010206634205U patent/CN201963617U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107366642A (en) * | 2017-06-22 | 2017-11-21 | 镇江四联机电科技有限公司 | A kind of movable type hydraulic pumping plant |
| CN109237281A (en) * | 2017-07-10 | 2019-01-18 | 中国石油天然气股份有限公司 | Compressor energy-storage system |
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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: 20110907 Termination date: 20151216 |
|
| EXPY | Termination of patent right or utility model |