CN207349183U - A kind of two-ram hydraulic drive system - Google Patents
A kind of two-ram hydraulic drive system Download PDFInfo
- Publication number
- CN207349183U CN207349183U CN201720600320.XU CN201720600320U CN207349183U CN 207349183 U CN207349183 U CN 207349183U CN 201720600320 U CN201720600320 U CN 201720600320U CN 207349183 U CN207349183 U CN 207349183U
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- Prior art keywords
- oil
- accumulator
- valve group
- motor
- pump
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/47—Mountings or tracking
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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- Fluid-Pressure Circuits (AREA)
Abstract
The utility model discloses a kind of two-ram hydraulic drive system, it is characterised in that：Valve group is exported including hydraulic oil container, motor, pump discharge oil path distribution valve group, accumulator and accumulator; the system can drive heat collector to rotate tracking sun angle in real time; ensure needed for tracking accuracy, have urgent fast positioning and in emergency circumstances defocus defencive function.
Description
Technical field
The utility model belongs to solar energy thermal-power-generating technical field, more particularly to a kind of two-ram hydraulic drive system.
Background technology
At present, solar energy thermal-power-generating technology, which enters, develops the phase rapidly.The power generation of solar energy paraboloid trough type is by tracking too
The linear parabolic mirror of sun movement, which gathers solar radiation in the endothermic tube at parabola focal line, heats heat transfer stream
The technology that body generates electricity.The key equipment in slot type power station mainly includes heat collector, endothermic tube and thermal storage device etc..Driving tracking system
System is the core of heat collector day by day, is the guarantee that photo-thermal collector makes full use of solar energy.By driving tracking system, photo-thermal is adopted
Storage can track the sun from sunrise to sunset.Tracking and driving system generally use hydraulic driving mode, fluid power system tool
There is the characteristics of anti-loading rigidity is big, running stability is strong.
Traditional hydraulic driving mode controls for single pump, and motor is ordinary three-phase synchronous, invariablenes turning speed.Tracking driving
Manner of execution controls for step-by-step movement, and once, motor starts 5~20 seconds or so the commutation actions in reversal valve interval therewith, and movement is certain
Motor stops after angle.This tracking type of drive, tracking accuracy are relatively low (about 1.7mrad), it is impossible to meet high temperature melting salt worker
1.2mrad high tracking required precisions required by matter.And motor frequent start-stop, reversal valve frequent movement, seriously affects first service life.
When determining the driving of rotating speed motor using single pump, when implementing fast positioning, mobile speed is non-adjustable.
Utility model content
A kind of the shortcomings that the utility model overcomes in the prior art, there is provided trough type solar heat-collector hydraulic-driven system
System.
In order to solve the above-mentioned technical problem, the utility model is achieved through the following technical solutions：
A kind of two-ram hydraulic drive system, including hydraulic oil container 9, motor 7, pump discharge oil path distribution valve group 8, accumulator
6 and accumulator outlet valve group 11, motor and pump discharge oil path distribution valve group are provided with hydraulic oil container, are set in hydraulic oil container side
Accumulator is equipped with, double pump system is provided with hydraulic oil container, one is is used for realization the plunger pump flexible at a slow speed of oil cylinder, and one is
The gear pump of the quick-expansion of oil cylinder is used for realization, fan is provided with the motor, in the lower section of the hydraulic oil container
Oil trap 10 is provided with, bracket 12 is provided with the oil trap.
Compared with prior art, the beneficial effects of the utility model are：
Change motor speed to change pump output flow using small flow plunger oil pump feed, and by frequency converter, realize
The jogging speed of oil cylinder is stretched, and then realizes the rotation track and localization of minute angle deviation, urgent fast positioning and in emergency circumstances
Defocus defencive function：The fast positioning and rotary movement of driving device are realized using gear wheel oil pump feed, and speed is adjustable；Separately
It is outer to set accumulator to realize that defocusing in the case of emergency power off waits safeguard protection action, other motor configuration fan, guarantee motor
Heat dissipation needs, and extends motor service life.
Brief description of the drawings
Fig. 1 is the utility model structure diagram.
Fig. 2 is Hydraulic System Principle schematic diagram.
Wherein, 1 is the first oil cylinder, and 2 be the second oil cylinder, and 3 be balance valve group, and 4 be hydralic hose, and 5 be commutation valve group, and 6 are
Accumulator, 7 be motor, and 8 be pump discharge oil path distribution valve group, and 9 be hydraulic oil container, and 10 be oil trap, and 11 be accumulator outlet valve
Group, 12 be bracket, and 13 be liquid level gauge, and 14 be air filter, and 15 be temperature relay, and 16 be liquid level relay, and 17 be gear
Pump, 18 be plunger pump, and 19 be check valve, and 20 be return filter, and 21 be counterbalance valve, and 22 be overflow valve, and 23 be pressure gauge, and 24 are
H function solenoid directional control valves, 25 be stacked unidirectional valve, and 26 be y-function solenoid directional control valve, and 27 be bi-bit bi-pass electromagnetic switch
Valve, 28 be one-way throttle valve, and 29 be throttle valve, and 30 be pressure switch, and 31 be balanced valve, and 32 be bi-bit bi-pass reversal valve, 33
For check valve.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings：
As shown in FIG., hydraulic oil container 9, motor 7, pump discharge oil path distribution valve group 8, commutation valve group 5, balance valve group 3, the
One oil cylinder 1, the second oil cylinder 2, accumulator 6 and accumulator export valve group 11, and motor and pump discharge oil circuit are provided with hydraulic oil container
Valve group is distributed, accumulator is provided with hydraulic oil container side, accumulator outlet valve group, the accumulation of energy are provided with below accumulator
Device outlet valve group is connected with pump discharge oil path distribution valve group, and pump discharge oil path distribution valve group is connected with commutation valve group, and commutate valve group
It is respectively connected with the first oil cylinder, the second oil cylinder, double pump is provided with hydraulic oil container, one is to be used for realization stretching at a slow speed for oil cylinder
Plunger pump, one be used for realization oil cylinder quick-expansion gear pump, the exit of the first oil cylinder and the second oil cylinder set
Oil return valve.
Moreover, it is provided with fan on the motor.
Moreover, the accumulator is exported between valve group and pump discharge oil path distribution valve group, pump discharge oil path distribution valve group
It is connected between commutation valve group, between commutation valve group and the first oil cylinder, the second oil cylinder by hydralic hose 4.
Moreover, oil trap 10 is provided with below the hydraulic oil container.
Moreover, bracket 12 is provided with the oil trap.
Moreover, in a kind of trough type solar heat-collector fluid power system, used rated operating pressure
For 15MPa.
As shown in Hydraulic System Principle schematic diagram, the small pump of hydraulic pressure is plunger pump 18, discharge capacity 0.1ml/r, fuel-displaced to pass through successively
Pump outlet check valve 8, y-function reversal valve 15, balanced valve 21 enter cylinder efficient chamber, and plunger pump 18 exports oil stream amount by motor
Rotational speed regulation, meets into the first oil cylinder, the oil inlet quantity of the second oil cylinder size chamber in real time, promotes rotation axis to drive heat collector load
Operation, realizes the high accuracy reproduction of sun angle, meets that heat collector focuses on needs in real time.According to two oil of difference of rotational angle
The mode of cylinder effect can be divided into pushing away, pushing away three kinds of modes of action such as drawing with drawing, one, and oil cylinder size chamber sets oil return reversal valve (two
Position two way selected valve 32), ensure that stress of the oil cylinder at dead-centre position does not interfere.Oil cylinder inlet and outlet hydraulic fluid port is respectively provided with balance
Valve 31, ensures that the needs of heat collector operating stably meet the holding of the positional precision when stopping at the same time.Oil cylinder oil return is through counterbalance valve
21st, return filter 20 flows back to fuel tank.Make the oil return line moment full of fluid and meet filtering accuracy needs.Big pump is set at the same time
(gear pump 17), discharge capacity 3.5ml/r, realizes the fast positioning of drive system and quick acting in emergency circumstances.Pump discharge
Overflow valve 22 is set to carry out pressure setting and protection respectively.To meet that drive system defocuses action needs under powering-off state,
Accumulator 6 is provided with oil circuit, and pressure switch 30, relay detect accumulator outlet pressure in real time.Once pressure is low
In setting value, H function reversing valves 24 start commutation action, and gear pump 17 starts, to accumulator fuel feeding, to make accumulator to keep
Certain pressure value.Accumulator outlet sets normally opened two-position two-way electromagnetic directional valve 27, and in normal work, this valve is closed, once
Fluid is powered off from accumulator discharge promotion cylinder action, the action needs such as satisfaction promptly defocuses.This hydraulic system sets liquid at the same time
The status alerts such as position, oil temperature, filter blocks, realize safeguard protection.
Following table is the logical action table of hydraulic system：
The utility model is described in detail above, but the content is only the preferred embodiment of the utility model,
It should not be considered as limiting the scope of the present invention.Equivalent change made according to the scope of application of this utility model with
Improve etc., should all still it belong within the patent covering scope of the utility model.
Claims (1)
- A kind of 1. two-ram hydraulic drive system, it is characterised in that：Including hydraulic oil container, motor, pump discharge oil path distribution valve group, Accumulator and accumulator export valve group, motor and pump discharge oil path distribution valve group are provided with hydraulic oil container, in hydraulic oil container one Side is provided with accumulator, and double pump system is provided with hydraulic oil container, and one is is used for realization the plunger pump flexible at a slow speed of oil cylinder, One is the gear pump for the quick-expansion for being used for realization oil cylinder, fan is provided with the motor, in the hydraulic oil container Lower section is provided with oil trap, and bracket is provided with the oil trap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720600320.XU CN207349183U (en) | 2017-05-26 | 2017-05-26 | A kind of two-ram hydraulic drive system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720600320.XU CN207349183U (en) | 2017-05-26 | 2017-05-26 | A kind of two-ram hydraulic drive system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207349183U true CN207349183U (en) | 2018-05-11 |
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ID=62361805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720600320.XU Active CN207349183U (en) | 2017-05-26 | 2017-05-26 | A kind of two-ram hydraulic drive system |
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| Country | Link |
|---|---|
| CN (1) | CN207349183U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236760A (en) * | 2017-05-26 | 2019-01-18 | 天津滨海光热跟踪技术有限公司 | A kind of two-ram hydraulic drive system |
-
2017
- 2017-05-26 CN CN201720600320.XU patent/CN207349183U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236760A (en) * | 2017-05-26 | 2019-01-18 | 天津滨海光热跟踪技术有限公司 | A kind of two-ram hydraulic drive system |
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