CN206917962U - A kind of antifreeze hydraulic cylinder structure with ice scraper - Google Patents
A kind of antifreeze hydraulic cylinder structure with ice scraper Download PDFInfo
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- CN206917962U CN206917962U CN201720601554.6U CN201720601554U CN206917962U CN 206917962 U CN206917962 U CN 206917962U CN 201720601554 U CN201720601554 U CN 201720601554U CN 206917962 U CN206917962 U CN 206917962U
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Abstract
The utility model discloses a kind of antifreeze hydraulic cylinder structure with ice scraper, it is characterised in that：Including the first oil cylinder, the second oil cylinder, balance valve group, hydralic hose, hydraulic oil container, motor, pump discharge oil path distribution valve group, accumulator, accumulator outlet valve group and ice scraper; the system can Real Time Drive heat collector rotate tracking sun angle; tracking accuracy needed for ensureing; with urgent fast positioning and in emergency circumstances defocus defencive function; and sleety weather is adapted to, eliminate influence of the ice slag to oil cylinder.
Description
Technical field
The invention belongs to solar energy thermal-power-generating technical field, more particularly to a kind of antifreeze hydraulic cylinder structure with ice scraper.
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.
Traditional hydraulic driving mode is the control of 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 motion 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
The high tracking required precisions of 1.2mrad required by matter.And motor frequent start-stop, reversal valve frequent movement, have a strong impact on first life-span.
When determining the driving of rotating speed motor using single pump, when implementing fast positioning, mobile speed is non-adjustable.
In the relatively more extensive area of solar energy thermal-power-generating technology application, environment is often relatively more severe, can often run into sleet etc.,
Sleet can influence the operation of whole fluid power system.
The content of the invention
Instant invention overcomes in the prior art the shortcomings that, there is provided a kind of trough type solar heat-collector fluid power system.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following technical solutions：
A kind of antifreeze hydraulic cylinder structure with ice scraper, including the first oil cylinder 1, the second oil cylinder 2, balance valve group 3, hydraulic pressure glue
Pipe 4, hydraulic oil container 9, motor 7, pump discharge oil path distribution valve group 8, accumulator 6, accumulator outlet valve group 11 and ice scraper, hydraulic pressure
Motor and pump discharge oil path distribution valve group are provided with fuel tank, hydraulic oil container side is provided with accumulator, in hydraulic oil container
Double pump system is provided with, one is the plunger pump flexible at a slow speed for realizing oil cylinder, and one is the quick-expansion for realizing oil cylinder
Gear pump, be provided with fan on described motor, oil trap 10 be provided with below the hydraulic oil container, in the collection
Bracket 12 is provided with oil groove, the ice scraper is arranged at the both ends of the first oil cylinder and the second oil cylinder.
Compared with prior art, beneficial effects of the present invention are：
Change motor speed to change pump output flow using low discharge 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 drive 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, motor configuration fan in addition, guarantee motor
Radiating needs, and extends motor service life, and is adapted to sleety weather, eliminates influence of the ice slag to oily cylinder.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
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 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
For check valve.
Embodiment
The present invention 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 for realizing stretching at a slow speed for oil cylinder
Plunger pump, one is for the gear pump for the quick-expansion for realizing oil cylinder, is set in the exit of the first oil cylinder and the second oil cylinder
Oil return valve.
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 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, 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 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, 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 counterbalance valve
21st, return filter 20 flows back to fuel tank.Make the return line moment full of fluid and meet filtering accuracy needs.Big pump is set simultaneously
(gear pump 17), discharge capacity 3.5ml/r, realize 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 simultaneously
The status alerts such as position, 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 (1)
- A kind of 1. antifreeze hydraulic cylinder structure with ice scraper, it is characterised in that：Including the first oil cylinder, the second oil cylinder, balance valve group, Hydralic hose, hydraulic oil container, motor, pump discharge oil path distribution valve group, accumulator, accumulator outlet valve group and ice scraper, hydraulic pressure Motor and pump discharge oil path distribution valve group are provided with fuel tank, hydraulic oil container side is provided with accumulator, in hydraulic oil container Double pump system is provided with, one is the plunger pump flexible at a slow speed for realizing oil cylinder, and one is the quick-expansion for realizing oil cylinder Gear pump, be provided with fan on described motor, oil trap be provided with below the hydraulic oil container, in the oil-collecting Bracket is provided with groove, the ice scraper is arranged at the both ends of the first oil cylinder and the second oil cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720601554.6U CN206917962U (en) | 2017-05-26 | 2017-05-26 | A kind of antifreeze hydraulic cylinder structure with ice scraper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720601554.6U CN206917962U (en) | 2017-05-26 | 2017-05-26 | A kind of antifreeze hydraulic cylinder structure with ice scraper |
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| Publication Number | Publication Date |
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| CN206917962U true CN206917962U (en) | 2018-01-23 |
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| CN201720601554.6U Active CN206917962U (en) | 2017-05-26 | 2017-05-26 | A kind of antifreeze hydraulic cylinder structure with ice scraper |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108930684A (en) * | 2017-05-26 | 2018-12-04 | 天津滨海光热跟踪技术有限公司 | A kind of antifreeze hydraulic cylinder structure with ice scraper |
| CN109450358A (en) * | 2018-11-20 | 2019-03-08 | 杭州光曲智能科技有限公司 | A kind of new energy photovoltaic generating system of roofing transformation |
-
2017
- 2017-05-26 CN CN201720601554.6U patent/CN206917962U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108930684A (en) * | 2017-05-26 | 2018-12-04 | 天津滨海光热跟踪技术有限公司 | A kind of antifreeze hydraulic cylinder structure with ice scraper |
| CN109450358A (en) * | 2018-11-20 | 2019-03-08 | 杭州光曲智能科技有限公司 | A kind of new energy photovoltaic generating system of roofing transformation |
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