CN207111324U - A kind of two-ram hydraulic drives driving tower - Google Patents
A kind of two-ram hydraulic drives driving tower Download PDFInfo
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- CN207111324U CN207111324U CN201720600995.4U CN201720600995U CN207111324U CN 207111324 U CN207111324 U CN 207111324U CN 201720600995 U CN201720600995 U CN 201720600995U CN 207111324 U CN207111324 U CN 207111324U
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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
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
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Abstract
The utility model discloses a kind of two-ram hydraulic to drive driving tower, including driving tower structure, Electric Appliance Cabinet and hydraulic system, this driving tower can Real Time Drive heat collector rotate tracking sun angle, tracking accuracy needed for ensureing, using low discharge plunger oil pump feed, and motor speed is changed to change pump output flow by frequency converter, realize that the jogging speed of oil cylinder is stretched, and then realize the rotation track and localization of minute angle deviation.
Description
Technical field
The invention belongs to solar energy thermal-power-generating technical field, more particularly to a kind of two-ram hydraulic driving driving tower.
Background technology
At present, solar energy thermal-power-generating technology, which enters, develops the phase rapidly.It is by tracking too that solar energy paraboloid trough type, which generates electricity,
The linear parabolic mirror of sun motion, which gathers solar radiation in the endothermic tube at parabola focal line, heats heat transfer stream
The technology that body is generated 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.
The existing hot power generation project technical requirements heat collector collecting efficiency of slot type fused salt with fused salt heat accumulation facility and with
Track precision is higher.Therefore, require that tracking and driving system has higher anti-loading stabilizing power and real-time dynamic response capability.
Traditional hydraulic driving mode is the control of single pump, and motor is ordinary three-phase synchronous, invariablenes turning speed.Track drive actions mode
Controlled for step-by-step movement, once, motor starts 5~20 seconds or so the commutation actions in reversal valve interval therewith, moves electricity after certain angle
Machine stops.This tracking type of drive, tracking accuracy are relatively low (about 1.7mrad), it is impossible to required by meeting high-temperature molten salt working medium
The high tracking required precisions of 1.2mrad.And motor frequent start-stop, reversal valve frequent movement, have a strong impact on first life-span.Again, pass
The more a height of 21MPa of setting pressure for fluid power system of uniting, it is unfavorable for the life of hydraulic component and seal.In addition,
Due to determining the driving of rotating speed motor using single pump, fast positioning speed is non-adjustable.
The content of the invention
Instant invention overcomes in the prior art the shortcomings that, there is provided a kind of two-ram hydraulic drives driving tower.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following technical solutions：
A kind of two-ram hydraulic drives driving tower, including driving tower structure, Electric Appliance Cabinet and hydraulic system,
The driving tower structure by two vertical king-posts is pillar, is provided with drive shaft in the upper end of king-post, in drive shaft
Torque tube arm is connected with, hydraulic system is set in driving tower inside configuration；
The Electric Appliance Cabinet is arranged at the side of driving tower structure；
The hydraulic system includes hydraulic oil container 9, motor 7, pump discharge oil path distribution valve group 8, commutation valve group 5, balanced valve
The 3, first oil cylinder 1 of group, the second oil cylinder 2, accumulator 6 and accumulator export valve group 11, and motor is provided with hydraulic oil container and is pumped out
Mouth oil path distribution valve group, accumulator is provided with hydraulic oil container side, and accumulator outlet valve group, institute are provided with below accumulator
State accumulator outlet valve group with pump discharge oil path distribution valve group to be connected, pump discharge oil path distribution valve group is connected with commutation valve group, changes
It is respectively connected with to valve group and the first oil cylinder, the second oil cylinder, double pump system is provided with hydraulic oil container, one is for realizing oil cylinder
Plunger pump flexible at a slow speed, one is for the gear pump for the quick-expansion for realizing oil cylinder, in the first oil cylinder and the second oil cylinder
Exit sets oil return valve.
Moreover, being additionally provided with front rail on described king-post, nameplate is provided with front rail；
Moreover, the bottom of described king-post is provided with bottom plate.
Moreover, described king-post side is additionally provided with motor housing.
Moreover, it is provided with fan on described motor.
Moreover, described 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 described two-ram hydraulic driving driving tower, used rated operating pressure is 15MPa.
Compared with prior art, beneficial effects of the present invention are：
1st, Real Time Drive heat collector rotates tracking sun angle, ensures required tracking accuracy 1.2mrad：Using low discharge
Plunger oil pump feed, and motor speed is changed to change pump output flow by frequency converter, realize that the jogging speed of oil cylinder is stretched, enter
And realize the rotation track and localization of minute angle deviation.
2nd, urgent fast positioning and in emergency circumstances defocus defencive function：Drive device is realized using gear wheel oil pump feed
Fast positioning and rotary movement, and speed is adjustable；Accumulator is set to realize that defocusing in the case of emergency power off is waited safely in addition
Protection act.
3rd, system pressure is reduced, extends the service life of component：This system uses the rated operating pressure to be for 15MPa
Medium voltage network.Operating pressure decreases compared with traditional slot type tracks fluid power system, is so advantageous to extend hydraulic pressure member
The service life of gas part and seal, the probability that reduction system leaks.
4th, oil cylinder outlet sets oil return valve (the bi-bit bi-pass reversal valve in figure), ensures stress of the oil cylinder at dead-centre position
Do not interfere：The mode acted on according to two oil cylinders of difference of rotational angle, which can be divided into, to be pushed away together, pushes away three kinds of drawing etc. with drawing, one
The mode of action, thus will necessarily exist oil cylinder be reduced to minimum stroke again start elongation process.Because this process is continuous dynamic
Make, to avoid two cylinder actions from interfering, oil return valve is set in oil cylinder oil-out, i.e., an oil cylinder is close minimum wherein
Before stroke, oil return valve is opened so that the positive and negative chamber of oil cylinder communicates with oil return, ensures feelings of the oil cylinder dead-centre position in no pressure
Under condition excessively, impacting with high pressure is avoided, extends oil cylinder and uses service life.
5th, motor is less than rated power operation, is advantageous to the extension of electrical machinery life：Motor is less than volume during normal tracking operation
Fixed power, motor configuration fan, ensures that motor radiating needs, extends motor service life in addition.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is Hydraulic System Principle schematic diagram.
Fig. 3 is control system circuit figure.
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 cleaner, 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 choke valve, and 30 be pressure switch, and 31 be balanced valve, and 32 be bi-bit bi-pass reversal valve, 33
It is drive shaft for check valve, 34,35 be torque tube arm, and 36 be king-post, and 37 be front rail, and 38 be nameplate, and 39 be motor housing, and 40 are
Electric Appliance Cabinet, 41 be bottom plate.
Embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings：
As shown in FIG., a kind of two-ram hydraulic driving driving tower, including driving tower structure, Electric Appliance Cabinet and hydraulic system,
The driving tower structure by two vertical king-posts is pillar, is provided with drive shaft in the upper end of king-post, in drive shaft
Torque tube arm is connected with, hydraulic system is set in driving tower inside configuration；
The Electric Appliance Cabinet is arranged at the side of driving tower structure；
The hydraulic system includes hydraulic oil container 9, motor 7, pump discharge oil path distribution valve group 8, commutation valve group 5, balanced valve
The 3, first oil cylinder 1 of group, the second oil cylinder 2, accumulator 6 and accumulator export valve group 11, and motor is provided with hydraulic oil container and is pumped out
Mouth oil path distribution valve group, accumulator is provided with hydraulic oil container side, and accumulator outlet valve group, institute are provided with below accumulator
State accumulator outlet valve group with pump discharge oil path distribution valve group to be connected, pump discharge oil path distribution valve group is connected with commutation valve group, changes
It is respectively connected with to valve group and the first oil cylinder, the second oil cylinder, double pump system is provided with hydraulic oil container, one is for realizing oil cylinder
Plunger pump flexible at a slow speed, one is for the gear pump for the quick-expansion for realizing oil cylinder, in the first oil cylinder and the second oil cylinder
Exit sets oil return valve.
Including hydraulic oil container 9, motor 7, pump discharge oil path distribution valve group 8, commutation valve group 5, balance valve group 3, the first oil cylinder
1st, the second oil cylinder 2, accumulator 6 and accumulator export valve group 11, and motor and pump discharge oil path distribution valve are provided with hydraulic oil container
Group, accumulator is provided with hydraulic oil container side, accumulator outlet valve group, the accumulator outlet are provided with below accumulator
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, commutation valve group and first
Oil cylinder, the second oil cylinder are respectively connected with, and double pump is provided with hydraulic oil container, and one is the plunger flexible at a slow speed for realizing oil cylinder
Pump, one is for the gear pump for the quick-expansion for realizing oil cylinder, and oil return valve is set in the exit of the first oil cylinder and the second oil cylinder.
Moreover, being additionally provided with front rail on described king-post, nameplate is provided with front rail；
Moreover, the bottom of described king-post is provided with bottom plate.
Moreover, described king-post side is additionally provided with motor housing.
Moreover, it is provided with fan on described motor.
Moreover, described 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 described two-ram hydraulic driving driving tower, used rated operating pressure is 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, meet in real time into the first oil cylinder, the oil inlet quantity of the second oil cylinder size chamber, promote rotary shaft to drive heat collector load
Operation, the high accuracy reproduction of sun angle is realized, meets that heat collector focuses on needs in real time.According to the difference two of rotational angle
The mode of oil 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
(bi-bit bi-pass reversal 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
Balanced valve 31, ensure that the needs of heat collector operating stably meet the holding of the positional precision when stopping simultaneously.Oil cylinder oil return is through the back of the body
Pressure valve 21, return filter 20 flow back to fuel tank.Make the return line moment full of fluid and meet filtering accuracy needs.Set simultaneously
Big pump (gear pump 17), discharge capacity 3.5ml/r, realize the fast positioning of drive system and quick acting in emergency circumstances.Pump
Outlet sets overflow valve 22 to carry out pressure setting and protection respectively.To meet that drive system defocuses action need under powering-off state
Will, accumulator 6 is provided with oil circuit, and pressure switch 30, relay detect accumulator outlet pressure in real time.Once pressure
Less than setting value, H function reversing valves 24 start commutation action, and gear pump 17 starts, to accumulator fuel feeding, to make accumulator to protect
Hold certain pressure value.Accumulator outlet sets normally opened two-position two-way electromagnetic directional valve 27, and in normal work, this valve is closed, and one
Denier powers off fluid from accumulator discharge promotion cylinder action, the action needs such as satisfaction promptly defocuses.This hydraulic system is set simultaneously
The status alerts such as liquid level, oil temperature, filter blocks, realize safeguard protection.
Following table is the logical action table of hydraulic system：
The present invention is described in detail above, but the content is only presently preferred embodiments of the present invention, it is impossible to recognized
For the practical range for limiting the present invention.Any changes and modifications in accordance with the scope of the present application, all should still it return
Belong within the patent covering scope of the present invention.
Claims (9)
1. a kind of two-ram hydraulic drives driving tower, including driving tower structure, Electric Appliance Cabinet and hydraulic system,
The driving tower structure is pillar by two vertical king-posts, and drive shaft is provided with the upper end of king-post, is connected in drive shaft
There is torque tube arm, hydraulic system is set in driving tower inside configuration；
The hydraulic system includes hydraulic oil container, motor, pump discharge oil path distribution valve group, commutation valve group, balance valve group, the first oil
Cylinder, the second oil cylinder, accumulator and accumulator export valve group, and motor and pump discharge oil path distribution valve group are provided with hydraulic oil container,
Accumulator is provided with hydraulic oil container side, accumulator outlet valve group, the accumulator outlet valve are provided with below accumulator
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, commutation valve group and the first oil
Cylinder, the second oil cylinder are respectively connected with, and double pump system is provided with hydraulic oil container, and one is the post flexible at a slow speed for realizing oil cylinder
Pump is filled in, one is for the gear pump for the quick-expansion for realizing oil cylinder, and oil return is set in the exit of the first oil cylinder and the second oil cylinder
Valve.
A kind of 2. two-ram hydraulic driving driving tower according to claim 1, it is characterised in that：The Electric Appliance Cabinet is arranged at
Drive the side of tower structure.
A kind of 3. two-ram hydraulic driving driving tower according to claim 1, it is characterised in that：On described king-post also
Front rail is provided with, nameplate is provided with front rail.
A kind of 4. two-ram hydraulic driving driving tower according to claim 1, it is characterised in that：The bottom of described king-post
It is provided with bottom plate.
A kind of 5. two-ram hydraulic driving driving tower according to claim 1, it is characterised in that：Described king-post side is also
It is provided with motor housing.
A kind of 6. two-ram hydraulic driving driving tower according to claim 1, it is characterised in that：On described motor
It is provided with fan.
A kind of 7. two-ram hydraulic driving driving tower according to claim 1, it is characterised in that：Described accumulator outlet
Between valve group and pump discharge oil path distribution valve group, between pump discharge oil path distribution valve group and commutation valve group, commutation valve group is with first
Connected between oil cylinder, the second oil cylinder by hydralic hose.
A kind of 8. two-ram hydraulic driving driving tower according to claim 1, it is characterised in that：In the hydraulic oil container
Lower section is provided with oil trap.
A kind of 9. two-ram hydraulic driving driving tower according to claim 1, it is characterised in that：In a kind of described twin-tub
In formula hydraulic-driven driving tower, used rated operating pressure is 15MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720600995.4U CN207111324U (en) | 2017-05-26 | 2017-05-26 | A kind of two-ram hydraulic drives driving tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720600995.4U CN207111324U (en) | 2017-05-26 | 2017-05-26 | A kind of two-ram hydraulic drives driving tower |
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| Publication Number | Publication Date |
|---|---|
| CN207111324U true CN207111324U (en) | 2018-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720600995.4U Active CN207111324U (en) | 2017-05-26 | 2017-05-26 | A kind of two-ram hydraulic drives driving tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108930642A (en) * | 2017-05-26 | 2018-12-04 | 天津滨海光热跟踪技术有限公司 | A kind of two-ram hydraulic driving driving tower |
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2017
- 2017-05-26 CN CN201720600995.4U patent/CN207111324U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108930642A (en) * | 2017-05-26 | 2018-12-04 | 天津滨海光热跟踪技术有限公司 | A kind of two-ram hydraulic driving driving tower |
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