CN103062163A - Hydraulic oil degassing system - Google Patents
Hydraulic oil degassing system Download PDFInfo
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- CN103062163A CN103062163A CN2013100153958A CN201310015395A CN103062163A CN 103062163 A CN103062163 A CN 103062163A CN 2013100153958 A CN2013100153958 A CN 2013100153958A CN 201310015395 A CN201310015395 A CN 201310015395A CN 103062163 A CN103062163 A CN 103062163A
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Abstract
The invention discloses a hydraulic oil degassing system which comprises a pressure oil source for providing hydraulic oil and an oil tank for recycling hydraulic oil. A throttle device is disposed between the hydraulic oil source and the oil tank. After hydraulic oil flows through the throttle device, gas in the hydraulic oil can be separated. The degassing system further comprises a degassing device which can discharge the gas separated from the hydraulic oil. An energy accumulator is disposed between the pressure oil source and the throttle device. Therefore, when the hydraulic oil flows through the throttle device, pressure difference occurs between an inlet and an outlet of the throttle device to allow gas voids to occur in the hydraulic oil, gas separation occurs, the gas separated is discharged by the degassing device, and accordingly the gas in the hydraulic oil is removed. The provided energy accumulator can provide the throttle device with high instantaneous flow and better create front and rear pressure ratio for the throttle device to allow for easier occurrence of gas voids in the hydraulic oil, gas separation is increased, and the degassing system is more effective.
Description
Technical field
The present invention relates to the field of degassing of hydraulic oil, particularly, relate to a kind of degassing system of hydraulic oil.
Background technique
Along with the deep development of Hydraulic Field at industry-by-industry, hydraulic oil is as the medium of transferring power, and the quality of its character is larger on the impact of real work.Especially usually can be dissolved with air in the hydraulic oil, this can impact hydraulic system at work.Wherein, at normal temperatures and pressures, the air content of hydraulic oil is about 6%.The content of hydraulic oil Air has larger impact to its Young's modulus: air content is larger, and its Young's modulus is less, and the rigidity of hydraulic system will descend.In the elements such as hydrovalve and oil hydraulic pump, owing to reasons such as low pressure and strong shearing, the dissolved gas in the fluid is separated out and is produced bubble or air pocket, under certain condition even cause the hydraulic element cavitation erosion, and the generation noise.And the existence of air pocket also makes the flow characteristic complicated of fluid.Therefore, need to be to its processing of degassing before the use of hydraulic oil.
In the prior art, in order to reduce the air content in the hydraulic oil, main technological scheme has at present:
(1) airtight hydraulic oil container is vacuumized, the gas evolution in the forced fluid force feed hydraulic oil container with the gas discharging of separating out again; Yet in this method, the air speed of separating out is slower, and will make bubble floating go out hydraulic oil need to wait for the long time;
(2) because the density of hydraulic pressure bubble in oil is a lot of at the bottom of than hydraulic oil, therefore have by centrifugal force the bubble in the hydraulic oil is separated with hydraulic oil, then with oil guide pipe with separated gas discharge.Yet in kind of method, the scheme of using centrifugal force that hydraulic oil is separated with gas can only be got rid of the bubble in the hydraulic oil, but can not force to dissolve in the gas evolution of hydraulic oil;
(3) use ultrasonic on-line air removing device, control hyperacoustic frequency and size, realize that ultrasound is to the gas bubble removal effect in the fluid.Yet the one side cost of this method is higher, and its using scope is restricted on the other hand.
Therefore, can provide a kind of simple in structure and hydraulic oil degas effect preferably technological scheme have positive effect.
Summary of the invention
The degassing system that the purpose of this invention is to provide a kind of hydraulic oil, this system architecture is simple, and the effect of degassing is better.
To achieve these goals, the invention provides a kind of degassing system of hydraulic oil, described degassing system comprises be used to the pressure oil-source that described hydraulic oil is provided with for the fuel tank that reclaims described hydraulic oil, be provided with throttling arrangement between described pressure oil-source and the described fuel tank, described hydraulic oil is flowed through behind the described throttling arrangement can be so that be dissolved in gas evolution in the described hydraulic oil, and described degassing system also comprises the device that degass that can discharge the gas of separating out from described hydraulic oil, wherein, be provided with accumulator between described pressure oil-source and the described throttling arrangement.
Preferably, described throttling arrangement comprises the throttle orifice that flows through for described hydraulic oil, and the inducer and the outlet section that lay respectively at this throttle orifice import and outlet, and the passage section of described outlet section is greater than the passage section of described inducer.
Preferably, described outlet section is flared structure, and the passage section of this flared structure outwards becomes large gradually from the outlet of described throttle orifice.
Preferably, described throttling arrangement comprises the throttle orifice that flows through for described hydraulic oil, and this throttle orifice is a plurality of.
Preferably, the described device that degass is the oil purifier that is serially connected between described throttling arrangement and the described fuel tank.
Preferably, the setting pressure of described accumulator can so that the ratio of the inlet and outlet pressure of described throttling arrangement greater than the air pocket threshold value, wherein, the ratio that equals the described inlet and outlet pressure of this air pocket threshold value can be so that described hydraulic oil is flowed through produces so that the air pocket of gas evolution behind the described throttling arrangement.
Preferably, described degassing system comprises the first working state and the second working state, in described the first working state, described accumulator is communicated with described pressure oil-source and is communicated with described throttling arrangement disconnection, in described the second working state, described accumulator disconnects with described pressure oil-source and is communicated with and is communicated with described throttling arrangement.
Preferably, described degassing system also comprises the 3rd working state, and in the 3rd working state, described accumulator all disconnects with described pressure oil-source and described throttling arrangement and being communicated with, and is communicated with the oil return fuel tank.
Preferably, described degassing system also comprises switching valve and switch valve, and described switching valve is arranged between described accumulator and the pressure oil-source, and described switch valve is arranged between described accumulator and the described throttling arrangement.
Preferably, described switching valve is three-position valve, at the meta of this three-position valve, described accumulator disconnects with described pressure oil-source and being communicated with, and in the left position of this three-position valve, described accumulator is communicated with described pressure oil-source, in the right position of this three-position valve, described accumulator is communicated with the oil return fuel tank.
Preferably, described degassing system also comprises controller and the first detection device, described the first detection device can detect the accumulation of energy pressure of described accumulator and feed back to described controller, when this accumulation of energy pressure equaled the setting pressure of described accumulator, described controller was controlled described accumulator and is communicated with and is communicated with described throttling arrangement with described pressure oil-source disconnection.
Preferably, described degassing system comprises controller and second detection device, described second detection device can detect respectively the inlet and outlet pressure of described throttling arrangement and feed back to described controller, when the ratio of this inlet and outlet pressure during less than the air pocket threshold value, described controller is controlled that described accumulator is communicated with described pressure oil-source and is disconnected with described throttling arrangement and to be communicated with.
Pass through technique scheme, when the present invention flows through throttling arrangement by hydraulic oil, can form pressure reduction in the import and export of throttling arrangement, and because the pressure of throttling arrangement outlet is less, therefore hydraulic oil can produce cavitation after flowing through throttling arrangement, gas evolution namely occurs, and then then the gas of separating out can be discharged by the device that degass, so that the gas in the hydraulic oil can access removal.Wherein owing to used accumulator among the present invention, can provide larger instantaneous flow for throttling arrangement, and set up better the front and back pressure ratio of throttling arrangement and the easier air pocket that in hydraulic oil, occurs, having increased gassing volume, thereby so that degassing system provided by the invention by simple structure realize effect preferably gas remove.
Other features and advantages of the present invention will partly be described in detail in embodiment subsequently.
Description of drawings
Accompanying drawing is to be used to provide a further understanding of the present invention, and consists of the part of specification, is used from explanation the present invention with following embodiment one, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the structure principle chart of the degassing system of the hydraulic oil that provides of the preferred embodiment for the present invention;
Fig. 2 is the partial structurtes schematic representation of the throttling arrangement that provides of the preferred embodiment for the present invention.
Description of reference numerals
1 pressure oil-source, 2 throttling arrangements
3 fuel tanks, 4 accumulators
5 device 6 switching valves that degas
7 switch valves, 8 controllers
11 relief valves, 91 first detection devices
92 second detection devices, 3 ' oil return fuel tank
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is elaborated.Should be understood that embodiment described herein only is used for description and interpretation the present invention, is not limited to the present invention.
At first it should be explained that, the present invention is in order to realize degassing of hydraulic oil, used the principle of the throttle orifice both sides pressure reduction in the fluid mechanics, wherein hydraulic oil is after flowing through throttle orifice, because thereby pressure decreased can produce cavitation, thereby so that the gas that is dissolved in the hydraulic oil separates out from hydraulic oil, so that follow-up the discharge.Wherein can be so that the ratio of the inlet and outlet pressure of hydraulic oil generation air pocket be called the air pocket threshold value in the present invention, this air pocket threshold value is conventionally known to one of skill in the art, common desirable 3.5.That is, the inlet pressure of throttling arrangement is 3.5 times of outlet pressure, and cavitation can occur the hydraulic oil that flow through throttle orifice this moment.It will be appreciated by persons skilled in the art that wherein in the different situation of the parameters such as temperature, this value can change.Therefore, in the present invention, if can so that the air pocket threshold value of hydraulic oil generation air pocket all should drop in protection scope of the present invention.This can be by inquiry: " [1] Fu Xin; Du Xuewen. the observation of air pocket in the valve port flow at high speed and flow field analysis. hydraulic pressure and pneumatic; 2006; (7): 29-31. " or " [2] Zuo Jianmin. hydraulic and pneumatic transmission (the 3rd edition). China Machine Press; 2005; 43. " etc. the document that can know of those skilled in the art obtain, the present invention does not do too much this and gives unnecessary details.
Need to prove in addition, only shown hydraulic schematic diagram among Fig. 1 of the present invention, for a person skilled in the art, identical hydraulic connecting principle can realize by various mechanical entities structure.Therefore, term related among the present invention should not be limited to its dictionary meanings, but should be the implication that the art technology people can understand.
As shown in Figure 1, the degassing system of a kind of hydraulic oil provided by the invention, this degassing system comprises be used to the pressure oil-source 1 that hydraulic oil is provided with for the fuel tank 3 that reclaims hydraulic oil, wherein, pressure oil-source 1 can be oil hydraulic pump as shown in the figure, can also be the oil sources that hydraulic oil is provided known to any those skilled in the art, in addition in order to guarantee security of system, can on the confession oil circuit of oil hydraulic pump, connect a relief valve 11 that is communicated with oil return fuel tank 3 ' in the side, with the usefulness as the safety valve of whole system, wherein knownly, after the pressure of system surpassed the setting pressure of relief valve 11, the hydraulic oil of system can flow back to oil return fuel tank 3 ' in case locking system generation booster by this relief valve, the accidents such as leakage.Wherein as the oil hydraulic pump of pressure oil-source 1 can be from this oil return fuel tank 3 ' oil suction with processing that the hydraulic oil in this oil return fuel tank 3 ' is degassed, in other embodiments can also be from specific fuel tank oil suction to carry out the processing of degassing of related fluid force feed, hydraulic oil can be reclaimed by the fuel tank 3 among the present invention after processing through degassing, to be carried out the usefulness of follow-up hydraulic transmission operation.
In order to realize purpose of the present invention, namely, can effectively remove the dissolved gases in the hydraulic oil, between pressure oil-source 1 and fuel tank 3, be provided with throttling arrangement 2, therefore, flowing through the hydraulic oil of this throttling arrangement 2 can be by the throttling arrangement throttling, thereby so that the outlet pressure of throttling arrangement 2 is less than inlet pressure, namely, hydraulic oil is flowed through and cavitation can be occured behind the throttling arrangement 2, so that be dissolved in the gas evolution in the hydraulic oil, and degassing system provided by the invention also comprises the device 5 that degass that can discharge the gas of separating out from hydraulic oil, therefore, can realize the processing of degassing of dissolved gases in the hydraulic oil.Wherein especially, in order to increase the amount of separating out of gas, guarantee the generation of cavitation, in the present invention, be provided with accumulator 4 between pressure oil-source 1 and the throttling arrangement 2, so the accumulator after the accumulation of energy 4 can provide larger instantaneous flow for throttling arrangement 2 in when work, increase the hydraulic fluid flow rate of the throttling arrangement 2 of flowing through, to increase the inlet and outlet pressure ratio of throttling arrangement, guarantee the air pocket threshold value that this inlet and outlet pressure is more above-mentioned than reaching.
Wherein preferably, the setting pressure of accumulator 4 can so that the ratio of the inlet and outlet pressure of throttling arrangement 2 greater than air pocket threshold value (being aforesaid 3.5), with the cavitation effect of further increase hydraulic oil, thereby effectively increase the amount of separating out of gas, promote the gas removal effect of hydraulic oil.Therefore, in preferred implementation of the present invention, adopt first by pressure oil-source 1 to accumulator 4 accumulation of energys, provide the control mode of hydraulic oil by accumulator 4 to throttling arrangement 2 again, so that the operability of degassing system provided by the invention and practicability are stronger.
Need to prove that the mode of execution that can realize technique scheme has multiple, the structure of throttling arrangement for example, the control mode of degassing system etc.The present invention is in this introduction preferred implementation wherein for convenience of description, and this preferred implementation only is used for explanation the present invention, is not limited to the present invention.
As shown in Figure 2, in preferred implementation of the present invention, the efficient of degassing and processing for further increase system, increase the hydraulic oil quantity of single treatment, throttling arrangement 2 included throttle orifices provided by the invention are a plurality of, these a plurality of throttle orifices can be for the multiply hydraulic oil throttling arrangement 2 of flowing through simultaneously, thereby increases the working efficiency of system.Wherein, throttling arrangement 2 provided by the present invention can be provided by various ways; for example form by the throttle orifice group among Fig. 2; in addition in other NM mode of executions; can also provide or adopt the forms such as short tube, thin long eyelet group to provide by the throttle orifice of various valve members; in addition, the throttling arrangement that can expect for other those skilled in the art also all should drop in protection scope of the present invention.
In throttling arrangement 2 as shown in Figure 2, in order further to increase gassing volume, preferably, throttling arrangement 2 comprises inducer 22 and the outlet section 23 that lays respectively at throttle orifice 21 imports and outlet, wherein, the passage section of outlet section 23 is greater than the passage section of inducer 22.Namely can increase low pressure area, so that more gas evolution, more preferably, this outlet section 23 is flared structure, and the passage section of this flared structure outwards becomes large gradually from the outlet of throttle orifice 21.Thereby the hydraulic oil of throttling arrangement 1 has larger low pressure area so that flow through, and can improve the gassing volume at this low pressure area.So that the efficient of degassing system provided by the invention and better effects if.
In addition, for the gas that will separate out from hydraulic oil is better discharged, preferably, degas device 5 for being serially connected in the oil purifier between throttling arrangement 2 and the fuel tank 3, and wherein this oil purifier is the well-known components in related domain, and it can be so that the gas of separating out from hydraulic oil, even if small gas all can be filtered off, thereby the hydraulic oil that the process gas evolution is processed is just all discharged the gas of separating out before flowing into fuel tank 3, can effectively increase the effect of degassing of degassing system.In addition; in other NM mode of executions; can also adopt the mode of for example in fuel tank, carrying out negative pressure ventilation to carry out the removal of gas; other mode of the discharge that can expect for this type of or gas those skilled in the art also should fall as in protection scope of the present invention, and the present invention does not limit this.
The above-mentioned working principle of introducing degassing system provided by the invention, the below will introduce the control principle in real work of degassing system provided by the invention in detail.
At first, because the existence of accumulator 4, for so that the working efficiency of system is higher, preferably can at first carry out the accumulation of energy operation of accumulator, this moment, degassing system entered the first working state, wherein, in the first working state, accumulator 4 is communicated with pressure oil-source 1 and is communicated with throttling arrangement 2 disconnections, thereby realize by 1 pair of accumulator 4 fuel feeding of pressure oil-source, so that accumulator 4 carries out accumulation of energy, after 4 pressure accumulation power of accumulator reached setting pressure, this moment, system can enter in the second working state, wherein, accumulator 4 and pressure oil-source 1 disconnects and is communicated with and is communicated with throttling arrangement 2, thereby by accumulator 4 hydraulic oil supplied to throttling arrangement 1, so that the separating out of the gas in the hydraulic oil.And when the underpressure of the hydraulic oil that accumulator 4 provides so that hydraulic oil is flowed through generation cavitation behind the throttling arrangement 1, then reentering the first working state is accumulator 4 accumulation of energys.So, repeat the processing of degassing continuously that above-mentioned two processes can realize hydraulic oil.
In addition, preferably, after the processing of degassing of finishing all hydraulic oil, accumulator 4 can be carried out off-load processes, this moment, degassing system entered the 3rd working state, and in the 3rd working state, accumulator 4 all disconnects with pressure oil-source 1 and throttling arrangement 2 and being communicated with, and being communicated with oil return fuel tank 3 ', thereby the off-load of realization accumulator 4.
Need to prove, the mode of structure that can finish this control procedure has multiple, particularly, as shown in Figure 1, degassing system can comprise switching valve 6 and switch valve 7, switching valve 6 is arranged between accumulator 4 and the pressure oil-source 1, and switch valve 7 is arranged between accumulator 4 and the throttling arrangement 2, to finish the switching of above-mentioned three working staties by cooperation.
Wherein, preferably, for so that accumulator 4 is finished above-mentioned three kinds of different working staties, preferably, switching valve 6 is three-position valve, meta at this three-position valve, accumulator 4 disconnects with pressure oil-source 1 and being communicated with, can carry out the second working state of degassing system this moment, and in the left position of this three-position valve, accumulator 4 is communicated with pressure oil-source 1, can carry out the first working state of degassing system this moment, in the right position of this three-position valve, accumulator is communicated with oil return fuel tank 3 ', and can carry out the 3rd working state of degassing system this moment.More preferably; this three-position valve is M type three position four-way directional control valve; in addition can prevent three position four-way directional control valve or other three valve members such as six-way transfer valve of accumulator 4 off-loads in the time of can also be for metas such as O types, should drop in protection scope of the present invention equally for this type of distortion.
Below in conjunction with the preferred embodiment for the present invention as shown in Figure 1, specifically introduce the control procedure of degassing system provided by the invention.Wherein, degassing system provided by the invention can be realized automatically control, and this moment, preferably switching valve 7 and switch valve 8 be solenoid directional control valve, and is electrically connected with following controller 8, moves to pass through the corresponding valve member of control Current Control that controller 8 exports.
Particularly, degassing system also comprises controller 8 and the first detection device 91, the first detection device 91 can detect the accumulation of energy pressure of accumulator 4 and feed back to controller 8, for example be the other pressure transducer that is connected between accumulator 4 and the switch valve 8, when this sensor 8 judges that the accumulation of energy pressure of this moment equals the setting pressure of accumulator 4, show that accumulator 4 accumulation of energys finish, at this moment, controller 8 control accumulators 4 are communicated with and are communicated with throttling arrangement 2 with pressure oil-source 1 disconnection.Particularly, control switching valve 7 switches to meta, and switch valve 8 is opened, to realize providing hydraulic oil by accumulator 4 as throttling arrangement 1.
In addition, degassing system also comprises second detection device 92, second detection device 92 can detect respectively the inlet and outlet pressure of throttling arrangement 2 and feed back to controller 8, for example be connected between switch valve 8 and the throttling arrangement 1 and the other pressure transducer that is connected between throttling arrangement 1 and the fuel tank 3 for other respectively, when controller 8 by the ratio of inlet and outlet pressure that calculates and judge throttling arrangement 1 during less than the air pocket threshold value, the delivery pressure that then shows accumulator 4 be not enough to so that hydraulic oil at the throttling arrangement 2 rear generation air pockets of flowing through, these Time Controller 8 control accumulators 4 are communicated with pressure oil-source 1 and are communicated with throttling arrangement 2 disconnections.Particularly, control switch valve 8 cuts out, and switching valve 7 switches to left position, realizes that by pressure oil-source 1 be accumulator 1 accumulation of energy this moment.
In addition, in order to realize the 3rd above-mentioned working state, then can in controller 8, preset the off-load pattern, when all hydraulic oil degas be disposed after, enable this pattern, this Time Controller 8 can be closed by control switch valve 1, and switching valve 7 switches to right position, so that the residue fluid in the accumulator 4 flows back to by the 3 ' off-load of oil return fuel tank.
More than introduce working principle and the control principle of degassing system provided by the invention, remove quickly and efficiently by the gas that this degassing system can be finished in the hydraulic oil, therefore, the degassing system of the hydraulic oil of body of the present invention has higher practicability and promotional value.
Below describe by reference to the accompanying drawings preferred implementation of the present invention in detail; but; the present invention is not limited to the detail in the above-mentioned mode of execution; in technical conceive scope of the present invention; can carry out multiple simple variant to technological scheme of the present invention, these simple variant all belong to protection scope of the present invention.
Need to prove in addition, each concrete technical characteristics described in above-mentioned embodiment in reconcilable situation, can make up by any suitable mode, for fear of unnecessary repetition, the present invention is to the no longer separately explanation of various possible compound modes.
In addition, also can carry out combination in any between the various mode of execution of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (12)
1. the degassing system of a hydraulic oil, it is characterized in that, described degassing system comprises be used to the pressure oil-source that described hydraulic oil is provided (1) with for the fuel tank (3) that reclaims described hydraulic oil, be provided with throttling arrangement (2) between described pressure oil-source (1) and the described fuel tank (3), described hydraulic oil is flowed through behind the described throttling arrangement (2) can be so that be dissolved in gas evolution in the described hydraulic oil, and described degassing system also comprises the device that degass (5) that can discharge the gas of separating out from described hydraulic oil, wherein, be provided with accumulator (4) between described pressure oil-source (1) and the described throttling arrangement (2).
2. degassing system according to claim 1, it is characterized in that, described throttling arrangement (2) comprises the throttle orifice (21) that flows through for described hydraulic oil, and the inducer (22) and the outlet section (23) that lay respectively at (21) import of this throttle orifice and outlet, the passage section of described outlet section (23) is greater than the passage section of described inducer (22).
3. degassing system according to claim 2 is characterized in that, described outlet section (23) is flared structure, and the passage section of this flared structure outwards becomes large gradually from the outlet of described throttle orifice (21).
4. degassing system according to claim 1 is characterized in that, described throttling arrangement (2) comprises the throttle orifice (21) that flows through for described hydraulic oil, and this throttle orifice (21) is a plurality of.
5. degassing system according to claim 1 is characterized in that, the described device that degass (5) is for being serially connected in the oil purifier between described throttling arrangement (2) and the described fuel tank (3).
6. degassing system according to claim 1, it is characterized in that, the setting pressure of described accumulator (4) can so that the ratio of the inlet and outlet pressure of described throttling arrangement (2) greater than the air pocket threshold value, wherein, equaling the ratio of the described inlet and outlet pressure of this air pocket threshold value can be so that described hydraulic oil is flowed through produce so that the air pocket of gas evolution behind the described throttling arrangement (2).
7. degassing system according to claim 1, it is characterized in that, described degassing system comprises the first working state and the second working state, in described the first working state, described accumulator (4) is communicated with described pressure oil-source (1) and is communicated with described throttling arrangement (2) disconnection, in described the second working state, described accumulator (4) disconnects with described pressure oil-source (1) and is communicated with and is communicated with described throttling arrangement (2).
8. degassing system according to claim 7, it is characterized in that, described degassing system also comprises the 3rd working state, in the 3rd working state, described accumulator (4) all disconnects with described pressure oil-source (1) and described throttling arrangement (2) and being communicated with, and is communicated with oil return fuel tank (3 ').
9. according to claim 1 or 7 or 8 described degassing systems, it is characterized in that, described degassing system also comprises switching valve (6) and switch valve (7), described switching valve (6) is arranged between described accumulator (4) and the pressure oil-source (1), and described switch valve (7) is arranged between described accumulator (4) and the described throttling arrangement (2).
10. degassing system according to claim 9, it is characterized in that, described switching valve (6) is three-position valve, meta at this three-position valve, described accumulator (4) disconnects with described pressure oil-source (1) and being communicated with, and in the left position of this three-position valve, described accumulator (4) is communicated with described pressure oil-source (1), in the right position of this three-position valve, described accumulator (4) is communicated with oil return fuel tank (3 ').
11. degassing system according to claim 9, it is characterized in that, described degassing system also comprises controller (8) and the first detection device (91), described the first detection device (91) can detect the accumulation of energy pressure of described accumulator (4) and feed back to described controller (8), when this accumulation of energy pressure equaled the setting pressure of described accumulator (4), described controller (8) was controlled described accumulator (4) and is communicated with and is communicated with described throttling arrangement (2) with described pressure oil-source (1) disconnection.
12. degassing system according to claim 9, it is characterized in that, described degassing system comprises controller (8) and second detection device (92), described second detection device (92) can detect respectively the inlet and outlet pressure of described throttling arrangement (2) and feed back to described controller (8), when the ratio of this inlet and outlet pressure during less than the air pocket threshold value, described controller (8) is controlled that described accumulator (4) is communicated with described pressure oil-source (1) and is disconnected with described throttling arrangement (2) and to be communicated with.
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| CN105570235A (en) * | 2014-11-04 | 2016-05-11 | 罗伯特·博世有限公司 | Equipment for degassing hydraulic fluid |
| CN109642597A (en) * | 2016-08-25 | 2019-04-16 | 罗伯特·博世有限公司 | Degassing for hydraulic oil and the hydraulic mechanism for its dehydration |
| CN110185676A (en) * | 2019-06-05 | 2019-08-30 | 深圳市粤永能源环保科技有限公司 | A kind of pure water hydraulics system |
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| CN104165172A (en) * | 2013-05-16 | 2014-11-26 | 罗伯特·博世有限公司 | Hydraulic device |
| CN105570235A (en) * | 2014-11-04 | 2016-05-11 | 罗伯特·博世有限公司 | Equipment for degassing hydraulic fluid |
| CN105570235B (en) * | 2014-11-04 | 2020-05-08 | 罗伯特·博世有限公司 | Device for degassing hydraulic fluid |
| CN109642597A (en) * | 2016-08-25 | 2019-04-16 | 罗伯特·博世有限公司 | Degassing for hydraulic oil and the hydraulic mechanism for its dehydration |
| CN110185676A (en) * | 2019-06-05 | 2019-08-30 | 深圳市粤永能源环保科技有限公司 | A kind of pure water hydraulics system |
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|---|---|
| CN103062163B (en) | 2015-06-03 |
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