CN108930684A - A kind of antifreeze hydraulic cylinder structure with ice scraper - Google Patents
A kind of antifreeze hydraulic cylinder structure with ice scraper Download PDFInfo
- Publication number
- CN108930684A CN108930684A CN201710385373.9A CN201710385373A CN108930684A CN 108930684 A CN108930684 A CN 108930684A CN 201710385373 A CN201710385373 A CN 201710385373A CN 108930684 A CN108930684 A CN 108930684A
- Authority
- CN
- China
- Prior art keywords
- oil
- valve group
- oil cylinder
- hydraulic
- accumulator
- 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.)
- Pending
Links
- 230000002528 anti-freeze Effects 0.000 title claims abstract description 6
- 239000003921 oil Substances 0.000 claims abstract description 65
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 15
- 239000002828 fuel tank Substances 0.000 claims description 3
- 239000002893 slag Substances 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 230000004224 protection Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000010727 cylinder oil Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20538—Type of pump constant capacity
Abstract
The invention discloses a kind of antifreeze hydraulic cylinder structures 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; this system can drive heat collector rotation tracking sun angle in real time; tracking accuracy needed for guaranteeing; with urgent quickly positioning and in emergency circumstances defocus defencive function; and it is adapted to rain and snow weather, eliminate influence of the ice slag to oil cylinder.
Description
Technical field
The invention belongs to solar energy thermal-power-generating technical fields, more particularly to a kind of antifreeze hydraulic cylinder structure with ice scraper.
Background technique
Currently, solar energy thermal-power-generating technology enters the rapid development phase.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 absorbing pipe at paraboloid focal line, heats heat transfer stream
The technology that body generates electricity.The key equipment in slot type power station mainly includes heat collector, absorbing pipe 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 generallys use hydraulic driving mode, fluid power system tool
Have the characteristics that anti-loading rigidity is big, running stability is strong.
Traditional hydraulic driving mode is single pump control, and motor is ordinary three-phase synchronous, invariablenes turning speed.Tracking driving
Manner of execution is step-by-step movement control, and 5~20 seconds or so the commutation actions in reversal valve interval are primary, and motor starts therewith, and movement is certain
Motor stops after angle.This tracking driving method, tracking accuracy is lower (about 1.7mrad), is not able to satisfy high-temperature molten salt work
The requirement of 1.2mrad high tracking accuracy required by matter.And motor frequent start-stop, reversal valve frequent movement seriously affect first service life.
When determining revolving speed motor driven using single pump, when implementing quickly positioning, mobile speed is non-adjustable.
In the relatively more extensive area of solar energy thermal-power-generating technical application, environment is often relatively more severe, can often encounter sleet etc.,
Sleet will affect the operation of entire fluid power system.
Summary of the invention
The present invention overcomes the disadvantages of the prior art, provides 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 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, it is hydraulic
It is provided with motor and pump discharge oil path distribution valve group on fuel tank, hydraulic oil container side is provided with accumulator, in hydraulic oil container
It is provided with double pump system, one is the plunger pump to stretch 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 the motor, oil trap 10 be provided with below the hydraulic oil container, in the collection
Bracket 12 is provided on oil groove, the ice scraper is set to the both ends of the first oil cylinder and the second oil cylinder.
Compared with prior art, beneficial effects of the present invention are：
Using small flow plunger oil pump feed, and motor speed is changed by frequency converter and changes pump output flow, realized
The jogging speed of oil cylinder is flexible, and then realizes the rotation tracking and positioning of minute angle deviation, urgent quickly positioning and in emergency circumstances
Defocus defencive function：Quick positioning and the rotary movement of driving device are realized using gear wheel oil pump feed, and speed is adjustable；Separately
Equal safeguard protections movement is defocused in the case of outer setting accumulator realization emergency power off, in addition motor configures fan, guarantees motor
Heat dissipation needs, and extends motor service life, and be adapted to rain and snow weather, eliminates influence of the ice slag to oil cylinder.
Detailed description of the invention
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 liquidometer, 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 valve, 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.
Specific embodiment
Present invention is further described in detail with specific embodiment with reference to the accompanying drawing：
As shown in the figure, 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, are provided with motor and pump discharge oil circuit on hydraulic oil container
Valve group is distributed, hydraulic oil container side is provided with accumulator, 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 in hydraulic oil container, one is stretching at a slow speed for realizing oil cylinder
Plunger pump, one for for realizing oil cylinder quick-expansion gear pump, the exit of the first oil cylinder and the second oil cylinder be arranged
Oil return valve.
Moreover, being provided with fan on the motor.
Moreover, the accumulator exports between valve group and pump discharge oil path distribution valve group, pump discharge oil path distribution valve group
It is connect by hydralic hose 4 between commutation valve group, between commutation valve group and the first oil cylinder, the second oil cylinder.
Moreover, being provided with oil trap 10 below the hydraulic oil container.
Moreover, being provided with bracket 12 on 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, hydraulic small pump is plunger pump 18, discharge capacity 0.1ml/r, fuel-displaced successively to pass through
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 the oil inlet quantity for entering the first oil cylinder, the second oil cylinder size chamber in real time, and rotary shaft is pushed to drive heat collector load
Operation realizes the high-precision reproduction of sun angle, meets heat collector and focus 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), guarantee 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 guarantees the needs of heat collector operating stably while meeting the holding of the position precision when stopping.Oil cylinder oil return is through counterbalance valve
21, return filter 20 flows back to fuel tank.Make the oil return line moment full of oil liquid and meets filtering accuracy needs.Big pump is set simultaneously
(gear pump 17), discharge capacity 3.5ml/r realize the quick positioning and quick acting in emergency circumstances of drive system.Pump discharge
Overflow valve 22 is respectively set and carries out pressure setting and protection.Movement needs are defocused to meet drive system under power blackout situation,
Accumulator 6 and pressure switch 30, relay real-time detection accumulator outlet pressure are provided in oil circuit.Once pressure is low
In setting value, H function reversing valve 24 starts commutation action, and gear pump 17 starts to keep accumulator can to accumulator fuel feeding
Certain pressure value.Normally opened two-position two-way electromagnetic directional valve 27 is arranged in accumulator outlet, this valve is closed in normal work, once
It powers off oil liquid and is discharged from accumulator and push cylinder action, meet and promptly defocus etc. movement needs.Liquid is arranged in this hydraulic system simultaneously
The status alerts such as position, oil temperature, filter obstruction, realize safeguard protection.
Following table is the logical action table of hydraulic system：
It describes the invention in detail, but content is only the preferred embodiment of the present invention, cannot be recognized above
For for limiting practical range of the invention.Any changes and modifications in accordance with the scope of the present application should all still return
Belong within patent covering scope of the invention.
Claims (1)
1. 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, it is hydraulic
It is provided with motor and pump discharge oil path distribution valve group on fuel tank, hydraulic oil container side is provided with accumulator, in hydraulic oil container
It is provided with double pump system, one is the plunger pump to stretch 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 the motor, be provided with oil trap below the hydraulic oil container, in the oil-collecting
Bracket is provided on slot, the ice scraper is set to the both ends of the first oil cylinder and the second oil cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710385373.9A CN108930684A (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 |
|---|---|---|---|
| CN201710385373.9A CN108930684A (en) | 2017-05-26 | 2017-05-26 | A kind of antifreeze hydraulic cylinder structure with ice scraper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108930684A true CN108930684A (en) | 2018-12-04 |
Family
ID=64450439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710385373.9A Pending CN108930684A (en) | 2017-05-26 | 2017-05-26 | A kind of antifreeze hydraulic cylinder structure with ice scraper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108930684A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2439946Y (en) * | 2000-08-07 | 2001-07-25 | 程崇昆 | Fully-automatic hydraulic oil-extraction machine |
| CN101982655A (en) * | 2010-11-03 | 2011-03-02 | 天津市欧曼液压装备系统工程有限公司 | Proportional and hydraulic tracking system for trough solar thermal power generating condenser |
| CN102108983A (en) * | 2010-12-28 | 2011-06-29 | 宁夏永旺机电设备制造有限公司 | Hydraulic magnesium pressing machine |
| JP2012229020A (en) * | 2012-08-30 | 2012-11-22 | Hitachi Automotive Systems Ltd | Brake device |
| CN102889690A (en) * | 2012-10-26 | 2013-01-23 | 皇明太阳能股份有限公司 | Tank type paraboloid solar concentrating collector system and array thereof |
| CN105090135A (en) * | 2015-08-28 | 2015-11-25 | 苏州斯卡柏通讯技术有限公司 | Hydraulic driving system for solar condenser |
| CN105452677A (en) * | 2013-08-05 | 2016-03-30 | 瓦尔特泓格博士股份有限两合公司 | Stripper unit and hydraulic working apparatus having a stripper unit |
| CN206917962U (en) * | 2017-05-26 | 2018-01-23 | 天津滨海光热跟踪技术有限公司 | A kind of antifreeze hydraulic cylinder structure with ice scraper |
-
2017
- 2017-05-26 CN CN201710385373.9A patent/CN108930684A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2439946Y (en) * | 2000-08-07 | 2001-07-25 | 程崇昆 | Fully-automatic hydraulic oil-extraction machine |
| CN101982655A (en) * | 2010-11-03 | 2011-03-02 | 天津市欧曼液压装备系统工程有限公司 | Proportional and hydraulic tracking system for trough solar thermal power generating condenser |
| CN102108983A (en) * | 2010-12-28 | 2011-06-29 | 宁夏永旺机电设备制造有限公司 | Hydraulic magnesium pressing machine |
| JP2012229020A (en) * | 2012-08-30 | 2012-11-22 | Hitachi Automotive Systems Ltd | Brake device |
| CN102889690A (en) * | 2012-10-26 | 2013-01-23 | 皇明太阳能股份有限公司 | Tank type paraboloid solar concentrating collector system and array thereof |
| CN105452677A (en) * | 2013-08-05 | 2016-03-30 | 瓦尔特泓格博士股份有限两合公司 | Stripper unit and hydraulic working apparatus having a stripper unit |
| CN105090135A (en) * | 2015-08-28 | 2015-11-25 | 苏州斯卡柏通讯技术有限公司 | Hydraulic driving system for solar condenser |
| CN206917962U (en) * | 2017-05-26 | 2018-01-23 | 天津滨海光热跟踪技术有限公司 | A kind of antifreeze hydraulic cylinder structure with ice scraper |
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| PB01 | Publication | ||
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