CN203023182U - Degassing system of hydraulic oil - Google Patents
Degassing system of hydraulic oil Download PDFInfo
- Publication number
- CN203023182U CN203023182U CN 201320023121 CN201320023121U CN203023182U CN 203023182 U CN203023182 U CN 203023182U CN 201320023121 CN201320023121 CN 201320023121 CN 201320023121 U CN201320023121 U CN 201320023121U CN 203023182 U CN203023182 U CN 203023182U
- Authority
- CN
- China
- Prior art keywords
- hydraulic oil
- oil
- pressure
- throttling arrangement
- degassing system
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
The utility model discloses a degassing system of hydraulic oil. The degassing system of hydraulic oil comprises a pressure oil source and an oil tank, wherein the pressure oil source is used for providing hydraulic oil; the oil tank is used for recovering hydraulic oil; a throttling device is arranged between the pressure oil tank and the oil tank; after hydraulic oil passes by the throttling device, gases dissolved in the hydraulic oil are separated out; the degassing system also comprises a degassing device capable of discharging the gases separated out of the hydraulic oil, wherein an energy storage device is arranged between the pressure oil source and the throttling device. So, when hydraulic oil flows through the throttling device, pressure difference can be formed between the inlet and the outlet of the throttling device, so that hydraulic oil can generate cavitation, the generated gases are separated out, and are discharged out through the degassing device, and gases in the hydraulic oil are removed. Moreover, because of the arrangement of the energy storage device, greater instant flow rate can be provided for the throttling device; and the pressure ratio before and after of the throttling device is established, and cavitation can be generated in the hydraulic oil easily, and the gas separated-out amount is increased, and the effect of the degassing system is better.
Description
Technical field
The utility model relates to the field of degassing of hydraulic oil, particularly, relates 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 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, due to reasons such as low pressure and strong shearings, the dissolved gas in fluid is separated out and is produced bubble or air pocket, even causes the hydraulic element cavitation erosion under certain condition, and produces noise.And the existence of air pocket also makes the flow characteristic of fluid become complicated.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 hydraulic oil, main technological scheme has at present:
(1) airtight hydraulic oil container is vacuumized, the gas evolution in the forced fluid force feed, then the gas discharging of separating out hydraulic oil container; 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 hydraulic oil is separated with hydraulic oil, then with oil guide pipe with separated gas discharge.Yet, in kind of method, use centrifugal force to make scheme that hydraulic oil separates with gas can only get rid of bubble in hydraulic oil, still 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 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.
The model utility content
The purpose of this utility model is to provide a kind of degassing system of hydraulic oil, and this system architecture is simple, and the effect of degassing is better.
to achieve these goals, the utility model 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 described fuel tank, described hydraulic oil is flowed through and can be made the gas evolution that is dissolved in described hydraulic oil after described throttling arrangement, 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 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 described fuel tank.
Preferably, described degassing system also comprises switching valve and switch valve, and described switching valve is arranged between described accumulator and pressure oil-source, and described switch valve is arranged between described accumulator and 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 communicated with described throttling arrangement disconnection.
Pass through technique scheme, when the utility model is flowed 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 occuring, then the gas of separating out can be discharged by the device that degass, makes the gas in hydraulic oil can access removal.Wherein owing to having used accumulator in the utility model, 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 occurs in hydraulic oil, having increased gassing volume, thus make degassing system that the utility model provides by simple structure realize effect preferably gas remove.
Other feature and advantage of the present utility model will partly be described in detail in embodiment subsequently.
Description of drawings
Accompanying drawing is to be used to provide further understanding of the present utility model, and consists of the part of specification, is used from explanation the utility model with following embodiment one, but does not consist of restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structure principle chart of the degassing system of the hydraulic oil that provides of the utility model preferred implementation;
Fig. 2 is the partial structurtes schematic diagram of the throttling arrangement that provides of the utility model preferred implementation.
Description of reference numerals
1 pressure oil-source 2 throttling arrangements
3 fuel tank 4 accumulators
5 device 6 switching valves that degas
7 switch valve 8 controllers
11 relief valve 91 first detection devices
92 second detection device 3 ' oil return fuel tanks
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated.Should be understood that, embodiment described herein only is used for description and interpretation the utility model, is not limited to the utility model.
At first it should be explained that, the utility model is in order to realize degassing of hydraulic oil, used the principle of the throttle orifice both sides pressure reduction in fluid mechanics, wherein hydraulic oil is after flowing through throttle orifice, because thereby pressure decreased can produce cavitation, thereby make the gas that is dissolved in hydraulic oil separate out from hydraulic oil, so that follow-up the discharge.Wherein can make the ratio of the inlet and outlet pressure of hydraulic oil generation air pocket be called the air pocket threshold value in the utility model, 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 situation that the parameters such as temperature are different, this value can change.Therefore, in the utility model, as long as can make the air pocket threshold value of hydraulic oil generation air pocket all should drop in protection domain of the present utility model.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 utility model is not done too much this and is given unnecessary details.
Need to prove in addition, only shown hydraulic schematic diagram in Fig. 1 of the present utility model, for a person skilled in the art, identical hydraulic connecting principle can realize by various mechanical entities structure.Therefore, term related in the utility model 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 that the utility model provides, 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 connect a relief valve 11 that is communicated with oil return fuel tank 3 ' in the side on the confession oil circuit of oil hydraulic pump, with the use as the safety valve of whole system, wherein knownly, after the pressure of system surpasses 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 in the utility model after processing through degassing, to be carried out the use of follow-up hydraulic transmission operation.
in order to realize the purpose of this utility model, namely, can effectively remove the dissolved gases in hydraulic oil, be provided with throttling arrangement 2 between pressure oil-source 1 and fuel tank 3, therefore, flowing through the hydraulic oil of this throttling arrangement 2 can be by the throttling arrangement throttling, thereby make the outlet pressure of throttling arrangement 2 less than inlet pressure, namely, hydraulic oil is flowed through and cavitation can be occured after throttling arrangement 2, so that be dissolved in gas evolution in hydraulic oil, and the degassing system that the utility model provides 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 hydraulic oil.Wherein especially, in order to increase the amount of separating out of gas, guarantee the generation of cavitation, in the utility model, be provided with accumulator 4 between pressure oil-source 1 and throttling arrangement 2, so the accumulator after 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 make the ratio of 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, adopt in preferred implementation of the present utility model first by pressure oil-source 1 to accumulator 4 accumulation of energys, then the control mode of hydraulic oil is provided to throttling arrangement 2 by accumulator 4, make operability and the practicability of the degassing system that the utility model provides stronger.
Need to prove, 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 utility model is in this introduction preferred implementation wherein for convenience of description, and this preferred implementation only is used for explanation the utility model, is not limited to the utility model.
As shown in Figure 2, in preferred implementation of the present utility model, the efficient of degassing and processing for further increase system, increase the hydraulic oil quantity of single treatment, the included throttle orifice of the throttling arrangement 2 that the utility model provides is 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 utility model can be provided by various ways; for example form by the throttle orifice group in 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 domain of the present utility model.
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, make 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 make the hydraulic oil of the throttling arrangement 1 of flowing through have larger low pressure area, can improve the gassing volume at this low pressure area.Make efficient and the better effects if of the degassing system that the utility model provides.
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 fuel tank 3, and wherein this oil purifier is the well-known components in related domain, and it can make 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 carrying out negative pressure ventilation in fuel tank 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 domain of the present utility model, and the utility model does not limit this.
The above-mentioned working principle of having introduced the degassing system that the utility model provides, the below will introduce the control principle in real work of the degassing system that the utility model provides in detail.
at first, existence due to accumulator 4, for the working efficiency that makes system 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, make accumulator 4 carry out accumulation of energy, after 4 pressure accumulation power of accumulator reach setting pressure, this moment, system can enter in the second working state, wherein, accumulator 4 disconnects with pressure oil-source 1 and is communicated with and is communicated with throttling arrangement 2, thereby by accumulator 4, hydraulic oil is supplied to throttling arrangement 1, make separating out of gas in hydraulic oil.And when the underpressure of the hydraulic oil that accumulator 4 provides so that hydraulic oil is flowed through generation cavitation after throttling arrangement 1, 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 completing 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 be communicated with oil return fuel tank 3 ', thereby realize the off-load of accumulator 4.
Need to prove, the mode of structure that can complete 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 pressure oil-source 1, and switch valve 7 is arranged between accumulator 4 and throttling arrangement 2, to complete the switching of above-mentioned three working staties by cooperation.
Wherein, preferably, complete above-mentioned three kinds of different working staties in order to make accumulator 4, 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 domain of the present utility model equally for this type of distortion.
Below in conjunction with the utility model preferred implementation as shown in Figure 1, specifically introduce the control procedure of the degassing system that the utility model provides.Wherein, the degassing system that the utility model provides can be realized automatically controlling, and this moment, preferably switching valve 7 and switch valve 8 be solenoid directional control valve, and is electrically connected to 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 switch valve 8, when these sensor 8 judgements accumulation of energy pressure at this moment equals the setting pressure of accumulator 4, show that accumulator 4 accumulation of energys complete, at this moment, controller 8 is controlled accumulators 4 and is communicated with and is communicated with throttling arrangement 2 with pressure oil-source 1 disconnection.Particularly, control switching valve 7 and switch 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 throttling arrangement 1 and the other pressure transducer that is connected between throttling arrangement 1 and 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 shows accumulator 4 is not enough to make hydraulic oil at the rear generation air pocket of the throttling arrangement 2 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, can preset the off-load pattern in controller 8, 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, makes the residue fluid in accumulator 4 flow back to by the 3 ' off-load of oil return fuel tank.
More than introduce working principle and the control principle of the degassing system that the utility model provides, remove quickly and efficiently by the gas that this degassing system can be completed in hydraulic oil, therefore, the degassing system of the hydraulic oil of the utility model body has higher practicability and promotional value.
Below describe by reference to the accompanying drawings preferred implementation of the present utility model in detail; but; the utility model is not limited to the detail in above-mentioned mode of execution; in technical conceive scope of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
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 utility model is to the explanation no longer separately of various possible compound modes.
In addition, also can carry out combination in any between various mode of execution of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (9)
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 described fuel tank (3), described hydraulic oil is flowed through and can be made the gas evolution that is dissolved in described hydraulic oil after described throttling arrangement (2), 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 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 described fuel tank (3).
6. degassing system according to claim 1, 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 pressure oil-source (1), and described switch valve (7) is arranged between described accumulator (4) and described throttling arrangement (2).
7. degassing system according to claim 6, 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 ').
8. according to claim 1 or 6 described degassing systems, 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.
9. according to claim 1 or 6 described degassing systems, 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 being communicated with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320023121 CN203023182U (en) | 2013-01-16 | 2013-01-16 | Degassing system of hydraulic oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320023121 CN203023182U (en) | 2013-01-16 | 2013-01-16 | Degassing system of hydraulic oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203023182U true CN203023182U (en) | 2013-06-26 |
Family
ID=48647171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320023121 Expired - Lifetime CN203023182U (en) | 2013-01-16 | 2013-01-16 | Degassing system of hydraulic oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203023182U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062163A (en) * | 2013-01-16 | 2013-04-24 | 中联重科股份有限公司 | Hydraulic oil degassing system |
| CN105240519A (en) * | 2014-07-01 | 2016-01-13 | 格特拉格传动机构和齿轮工厂赫尔曼·哈根迈尔有限公司&两合公司 | Transmission for a motor vehicle |
| DE102015216174A1 (en) | 2015-02-24 | 2016-08-25 | Robert Bosch Gmbh | Hydraulic device for degassing a liquid |
| DE102015216173A1 (en) | 2015-08-25 | 2017-03-02 | Robert Bosch Gmbh | Device for degassing a liquid |
| WO2018036889A1 (en) | 2016-08-25 | 2018-03-01 | Robert Bosch Gmbh | Hydraulic device for degassing and dewatering a hydraulic oil |
| CN114477428A (en) * | 2021-09-28 | 2022-05-13 | 山东东环环境科技股份有限公司 | Umbrella-shaped jet type aeration system for high-concentration sewage treatment |
-
2013
- 2013-01-16 CN CN 201320023121 patent/CN203023182U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062163B (en) * | 2013-01-16 | 2015-06-03 | 中联重科股份有限公司 | Hydraulic oil degassing system |
| CN103062163A (en) * | 2013-01-16 | 2013-04-24 | 中联重科股份有限公司 | Hydraulic oil degassing system |
| CN105240519B (en) * | 2014-07-01 | 2017-11-21 | 格特拉格传动机构和齿轮工厂赫尔曼·哈根迈尔有限公司&两合公司 | Speed changer for motor vehicle |
| CN105240519A (en) * | 2014-07-01 | 2016-01-13 | 格特拉格传动机构和齿轮工厂赫尔曼·哈根迈尔有限公司&两合公司 | Transmission for a motor vehicle |
| DE102015216174A1 (en) | 2015-02-24 | 2016-08-25 | Robert Bosch Gmbh | Hydraulic device for degassing a liquid |
| WO2017032656A1 (en) | 2015-08-25 | 2017-03-02 | Robert Bosch Gmbh | Device for degassing a liquid |
| DE102015216173A1 (en) | 2015-08-25 | 2017-03-02 | Robert Bosch Gmbh | Device for degassing a liquid |
| CN108136280A (en) * | 2015-08-25 | 2018-06-08 | 罗伯特·博世有限公司 | For the device that a kind of liquid is exhausted |
| CN108136280B (en) * | 2015-08-25 | 2021-08-17 | 罗伯特·博世有限公司 | Device for evacuating a liquid |
| WO2018036889A1 (en) | 2016-08-25 | 2018-03-01 | Robert Bosch Gmbh | Hydraulic device for degassing and dewatering a hydraulic oil |
| DE102016216002A1 (en) | 2016-08-25 | 2018-03-01 | Robert Bosch Gmbh | Hydraulic device for degassing and dehydrating a hydraulic oil |
| CN114477428A (en) * | 2021-09-28 | 2022-05-13 | 山东东环环境科技股份有限公司 | Umbrella-shaped jet type aeration system for high-concentration sewage treatment |
| CN114477428B (en) * | 2021-09-28 | 2023-08-11 | 山东东环环境科技股份有限公司 | Umbrella-shaped jet aeration system for high-concentration sewage treatment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203023182U (en) | Degassing system of hydraulic oil | |
| CN103062163A (en) | Hydraulic oil degassing system | |
| CN206550460U (en) | New electric discharge machining apparatus | |
| CN103384772A (en) | Water hammer generation device | |
| CN104064789B (en) | Fuel cell supply circulating system structure | |
| CN202785855U (en) | Constant-pressure exhaust water quality stabilizing integral machine | |
| CN102296656B (en) | Method and system for eliminating lake sludge | |
| CN107362608A (en) | Ship derusting vacuum sewage recovery system | |
| CN202924784U (en) | Vapor-water separation device for power station auxiliary machine | |
| JP2016147214A (en) | Cooling auxiliary apparatus | |
| CN203400531U (en) | De-foaming device for vacuum drum filter | |
| CN206896994U (en) | A kind of ship derusting vacuum sewage recovery system | |
| CN104632791A (en) | Device capable of removing oil bubbles | |
| CN202208120U (en) | Horizontal type ultrahigh-pressure cold isostatic pressing system | |
| CN203360344U (en) | Integrated system device for gardenia extract membrane separation | |
| CN105328183A (en) | Inert gas circulation and purification device for three-dimensional metal printer | |
| CN206154558U (en) | Mould evacuating device | |
| CN112397746A (en) | Anode injection reflux device of fuel cell engine | |
| CN202968180U (en) | Moisture separator | |
| CN202569664U (en) | Quick gas extraction device | |
| CN201137921Y (en) | Hermetic type high-temperature condensation water and water collecting tank steam reclaiming and conveyer device | |
| CN207621102U (en) | A kind of speed enhancing apparatus of oil cylinder | |
| CN206017284U (en) | The hydraulic damping circuit of stretching-machine feeding hydraulic cylinder | |
| CN104747545A (en) | Reverse osmosis system pressurizing and energy recycling device and pressurizing and energy recycling method | |
| CN203641005U (en) | Multi-stage roots pump for ladle degassing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130626 |
|
| CX01 | Expiry of patent term |