CN110231462A - It is a kind of to pump out vibration hydraulic oil to detect the device and its application method of air content - Google Patents

It is a kind of to pump out vibration hydraulic oil to detect the device and its application method of air content Download PDF

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Publication number
CN110231462A
CN110231462A CN201910656320.5A CN201910656320A CN110231462A CN 110231462 A CN110231462 A CN 110231462A CN 201910656320 A CN201910656320 A CN 201910656320A CN 110231462 A CN110231462 A CN 110231462A
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CN
China
Prior art keywords
oil
hydraulic oil
pump
liquid
shoe cream
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
Application number
CN201910656320.5A
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Chinese (zh)
Inventor
樊磊
李波
毛进
丁汉别
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Guizhou Power Grid Co Ltd
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Guizhou Power Grid Co Ltd
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Priority to CN201910656320.5A priority Critical patent/CN110231462A/en
Publication of CN110231462A publication Critical patent/CN110231462A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/26Oils; viscous liquids; paints; inks
    • G01N33/28Oils, i.e. hydrocarbon liquids
    • G01N33/2835Oils, i.e. hydrocarbon liquids specific substances contained in the oil or fuel
    • G01N33/2841Oils, i.e. hydrocarbon liquids specific substances contained in the oil or fuel gas in oil, e.g. hydrogen in insulating oil
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N7/00Analysing materials by measuring the pressure or volume of a gas or vapour
    • G01N7/14Analysing materials by measuring the pressure or volume of a gas or vapour by allowing the material to emit a gas or vapour, e.g. water vapour, and measuring a pressure or volume difference

Abstract

Vibration hydraulic oil is pumped out to detect the device of air content the invention discloses a kind of, comprising: oil vessel, including shoe cream room, oil inlet and oil outlet are equipped with the first valve at the oil inlet, and the oil outlet is equipped with the second valve;Wind is set on the oil vessel comprising first end and second end, the first end protrude into the shoe cream room;Vibrator is set in the shoe cream room;Several acanthospheres are set on the vibrator;And pump liquid mechanism, including drawing liquid pump, the liquid pumping hole of the drawing liquid pump be connected to the oil outlet, is pumped out the hydraulic oil in the shoe cream room by the drawing liquid pump.The present apparatus is by physical principle, the dissolved-air rate detected in hydraulic oil that can be simple and efficient.

Description

It is a kind of to pump out vibration hydraulic oil to detect the device and its application method of air content
Technical field
The present invention relates to a kind of vibration hydraulic oil that pumps out to detect the device and its application method of air content, belongs to hydraulic oil Dissolved-air rate calculates technical field.
Background technique
Power is not only often transmitted with the hydraulic oil liquid of working media as hydraulic system, but also to hydraulic system and other dresses It sets and plays a part of lubrication and cooling, but the gas in hydraulic oil has biggish unfavorable shadow to the stable operation operation of mechanism It rings.Because to analyze the pressure change of hydraulic system everywhere, the especially dynamic of cushion chamber to high power hydraulic actuating mechanism Pressure change cannot not consider the compressibility and flexible deformation of hydraulic oil.And load caused by hydraulic system flexible deformation The dynamic change of lotus and active force can not only have an impact the mechanical property of breaker, also can be to the reliability of operating mechanism It has an impact.
If entrained gas in hydraulic mechanism oil circulation system, it is unstable to will lead to system pressure, when gas exists When in oil liquid, the elasticity modulus of oil liquid can be greatly reduced, cause system response slow, the rigidity for influencing system and accordingly spy Property.In the presence of there are a large amount of free gas in oil liquid, localized hyperthermia can be generated when gas is sharply compressed, and cause oil liquid carbon Change.When oil liquid in system since local velocity is excessively high, pressure change is violent, when oil liquid enters low pressure by high pressure, in hydraulic oil Gas can separate, bubble can instantaneous expansion rupture, generate local impacting with high pressure at this time, cause Hydraulic Elements surface vapour Erosion.Air content increases will necessarily generate oxidation corrosion effect to oil liquid, increase oil liquid acid value, shorten the service life of oil liquid.
The mechanism of dissolving in of its gas is concentrated mainly on to the research of hydraulic oil gas both at home and abroad, the production principle of gas is more The chromatography etc. of kind gas.It has not yet to see to the relevant report for dissolving in gas detection in hydraulic oil, does not have especially There is a kind of device for being simple and efficient by physical principle and detecting hydraulic gas content of oil.
Summary of the invention
The technical problem to be solved by the present invention is provide it is a kind of pump out vibration hydraulic oil with detect air content device and its Application method, by physical principle, the dissolved-air rate detected in hydraulic oil that can be simple and efficient, to overcome the prior art not Foot.
The technical scheme is that a kind of vibration hydraulic oil that pumps out is to detect the device of air content, described device includes:
Oil vessel, including shoe cream room, oil inlet and oil outlet are equipped with the first valve, the oil outlet at the oil inlet Equipped with the second valve;
Wind is set on the oil vessel comprising first end and second end, the first end protrude into the shoe cream room It is interior;
Vibrator is set in the shoe cream room;
Several acanthospheres are set on the vibrator;And
Pump liquid mechanism, including drawing liquid pump, the liquid pumping hole of the drawing liquid pump are connected to the oil outlet, by the drawing liquid pump by institute The hydraulic oil stated in shoe cream room pumps out.
Further, described device further include:
Oil inlet pipe is vertically arranged, and lower end is connected to the oil inlet;
Oil inlet disk, is arranged in the upper end of the oil inlet pipe, and the height of the height of the oil inlet disk shoe cream room is high.
Further, the pump liquid mechanism further include:
Liquid container is connect, the liquid outlet of the drawing liquid pump is connect with the liquid container that connects by pipeline, the drawing liquid pump is pumped out Hydraulic oil be transported to described connect in liquid container.
Further, the pump liquid mechanism further include:
Liquid level sensor, setting connects in liquid container described, for measuring the level value for connecing liquid container;
The signal output end of controller, the signal input part of the controller and the liquid level sensor is electrically connected, the control The control terminal of the signal output end of device processed and the drawing liquid pump is electrically connected.
Further, the acanthosphere includes sphere and the spine for being distributed in spherome surface.
Further, the top of the shoe cream room is opening, and is provided with lid the opening is mating.
Further, the top of the shoe cream room is equipped with volume markings value.
Further, the shoe cream room is cylinder-like structure, and top is the funnel-shaped structure of back-off.
The present invention also provides pumping out vibration hydraulic oil described in one kind to detect the application method of the device of air content, including with Lower step:
Step 1 first opens first valve, closes second valve, hydraulic oil is injected into the shoe cream room;
Step 2 turns off first valve, opens second valve, starts drawing liquid pump, so that the portion in the shoe cream room The discharge of liquid separation pressure oil records the volume V1 of hydraulic oil in the shoe cream room after pump liquid, closes the second valve after the completion of pump liquid;
Then step 3 starts the vibrator acanthosphere is driven to shake with hydraulic oil and contacts;
Step 4 stands the oil vessel, records the volume V2 of hydraulic oil in the shoe cream room at this time, passes through formula (V1- V2)/V1 can calculate the dissolved-air rate of hydraulic oil.
The beneficial effects of the present invention are: the present invention, which first passes through pump liquid mechanism, to pump out the hydraulic oil in shoe cream room, make to store up Certain negative pressure is formed in oil pocket, then acanthosphere can be made to shake with hydraulic oil by vibrator and contacted, since acanthosphere tip position can Position is provided for the long great achievement bubble of gas molecule forming core, therefore bubble will soon be promoted to be detached from hydraulic oil and floated, passes through survey The volume change of changeable volume or gas can quickly calculate the dissolved-air rate of hydraulic oil before and after amount hydraulic oil.The present invention has Clever structure, it is easy to operate, it is practical, the advantages of the dissolved-air rate detected in hydraulic oil that can be simple and efficient.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention;
Fig. 2 is the structural schematic diagram of oil vessel in Fig. 1;
Fig. 3 is the structural schematic diagram of Tu1Zhong pump liquid mechanism;
Fig. 4 is the control structure figure of drawing liquid pump;
Description of symbols:
1 oil vessel, 2 vibrators, 3 vibration framves, 4 acanthospheres, 5 drawing liquid mechanisms, 6 oil inlet pipes, 7 oil inlet disks;
11 shoe cream rooms, 12 oil inlets, 13 oil outlets, 14 first valves, 15 second valves, 16 volume markings values, 17 lids, 18 bases Seat;
51 drawing liquid pumps, 52 liquid pumping holes, 53 connect liquid container, 54 liquid level sensors.
Specific embodiment
With reference to the accompanying drawing and invention is described further in specific embodiment:
Referring to Fig. 1, a kind of according to embodiments of the present invention pump out vibration hydraulic oil to detect the device of air content, including oil storage is held Device 1, oil inlet pipe 6, oil inlet disk 7, vibrator 2, acanthosphere 4 and pump liquid mechanism.
Also referring to Fig. 1 and Fig. 2, oil vessel 1, including shoe cream room 11, oil inlet 12 and oil outlet 13.Shoe cream room 11 For an oil vessel 1, it is mainly used for containing hydraulic oil.Oil inlet 12 is an outwardly directed tube body, is mainly used for shoe cream room Hydraulic oil is injected in 11.Oil outlet 13 is an outwardly directed tube body, is mainly used for for the hydraulic oil in shoe cream room 11 being discharged, excellent The side bottom of 11 body of shoe cream room is arranged in choosing.The bottom of oil vessel 1 is provided with a pedestal 18.
It is equipped with volume markings value 16 on the top of shoe cream room 11, is mainly used for measuring the upper air volume of oil vessel 1, Or the volume of measurement hydraulic oil.The top of shoe cream room 11 is opening, and is provided with lid 17 the opening is mating, such as Lid 17 can be cap body, and cap body is removably mounted at the opening, such as seal cap, to realize the closing of the upper end of shoe cream room 11 With opening.
In one example, the main body of shoe cream room 11 is cylinder-like structure, and top is the funnel-shaped structure of back-off, at it Two opposite side walls lower part is respectively arranged with oil inlet 12 and oil outlet 13.
It is provided with the first valve 14 at oil inlet 12, the second valve 15 is provided at oil outlet 13.First valve 14 It is mainly used for realizing the opening and closing of oil inlet 12 and oil outlet 13 with the second valve 15, valve is conventional valve body switch device Part, such as manually-operated gate, electrically operated valve etc..
Referring to Fig. 1, oil inlet pipe 6, is vertically arranged, lower end is connected to oil inlet 12, can be by oil inlet pipe 6 by hydraulic oil It is injected into 11 body of shoe cream room.
Referring to Fig. 1, oil inlet disk 7, is arranged in the upper end of oil inlet pipe 6.The shape of oil inlet disk 7 be it is horn-like, due to oil inlet The opening of disk 7 is larger, thus can realize hydraulic oil be quickly poured into and function of injecting.Preferably, the height of oil inlet disk 7 is compared with oil storage The height of 11 body of chamber is high.
Referring to Fig. 1, vibrator 2, is set in the shoe cream room 11, for providing vibroseis.Specifically, vibrator 2 Preferably high-frequency vibrator 2, such as high-frequency vibration stick, high-frequency vibration stick are mounted vertically in shoe cream room 11, for example, its pedestal is pacified Mounted in the inner bottom surface of shoe cream room 11.Certainly, vibrator 2 can also be installed in other ways, as long as can shake to oil liquid ?.
Referring to Fig. 1, several acanthospheres 4, are set on the vibrator 2.Specifically, it is fixedly installed on vibrator 2 Frame 3 is shaken, acanthosphere 4 is fixed on vibration frame 3.For example, the fixed acanthosphere 4 in vibration 3 one end of frame, the other end are fixed on vibrator 2 On surface.Preferably, acanthosphere 4 includes sphere and spine, and several spines are evenly arranged on the surface of sphere, form the ball of a thorn-like Body.The purpose of spine is because the density of oil is big, and gas molecule will form gas and need a nucleation site (such as rain making Powder nucleating agent is beaten into air, saturation vapour is promoted to become liquid).Acanthosphere 4 can for example be made for steel.Due to thorn Ball 4 is made of the surface that several spines are evenly arranged on sphere, therefore is shaken in contact process with hydraulic oil, 4 tip position of acanthosphere Position can be provided for the long great achievement bubble of gas molecule forming core, in addition acanthosphere 4 rotates in shoe cream room 11, bubble will soon be promoted It is detached from hydraulic oil and floats.
Please refer to Fig. 1, Fig. 3 and Fig. 4, pump liquid mechanism, including drawing liquid pump 51, connect liquid container 53, liquid level sensor 54 and control Device processed.
Drawing liquid pump 51 is mainly used to pump out in the hydraulic oil in shoe cream room 11, makes have certain negative pressure in shoe cream room 11. Specifically, the liquid pumping hole 52 of drawing liquid pump 51 is connected to the oil outlet 13 of shoe cream room 11, at this time can be by drawing liquid pump 51 by shoe cream room Hydraulic oil in 11 pumps out.Drawing liquid pump 51 is high-pressure pump, and certainly, drawing liquid pump 51 can also be the pump of other structures form.
Liquid container 53 is connect, is mainly used to contain hydraulic oil, the liquid outlet of drawing liquid pump 51 by pipeline and meets the company of liquid container 53 It connects, the hydraulic oil that drawing liquid pump 51 pumps out is transported to and is connect in liquid container 53.It connects liquid container 53 for example and can be the appearance of an opening Device, such as measuring cup.
Liquid level sensor 54, setting connects in liquid container 53 described, for measuring the level value for connecing liquid container 53.In other words It says, can measure the volume for connecing the hydraulic oil contained in liquid container 53 by liquid level sensor 54.
Controller is mainly used to receive the liquid level value information of liquid level sensor 54, while realizing the control to drawing liquid pump 51. The signal input part of controller and the signal output end of liquid level sensor 54 are electrically connected, the signal output end and drawing liquid of controller The control terminal electrical connection of pump 51.The hydraulic liquid product value that liquid level sensor 54 will test is transferred to controller, controller root According to the bulking value of setting, decide whether the pump liquid movement for stopping drawing liquid pump 51.
When work, the hydraulic oil in shoe cream room 11 is pumped out by drawing liquid pump 51, can so make to form one in shoe cream room 11 Fixed negative pressure promotes the bubble in hydraulic oil to overflow.
It is a kind of according to embodiments of the present invention to pump out vibration hydraulic oil to detect the application method of the device of air content, including with Lower step:
Step 1 first opens the first valve 14, closes the second valve 15, hydraulic oil is injected into shoe cream room 11.Specifically, may be used Hydraulic oil is poured into shoe cream room 11 by oil inlet disk 7 and oil inlet pipe 6, and when falling oil, lid 17 can also be unscrewed, so as to Hydraulic oil is full of shoe cream room 11, covers tightly in the opening of shoe cream room 11 after filling, then by lid 17.
Step 2 turns off the first valve 14, opens the second valve 15, starts drawing liquid pump 51, so that the portion in shoe cream room 11 The discharge of liquid separation pressure oil records the volume V1 of hydraulic oil in shoe cream room 11 after drawing liquid, closes the second valve 15 after the completion of drawing liquid.The step Suddenly can make to form certain negative pressure in shoe cream room 11, in order to promote the bubble in hydraulic oil to overflow.
Then step 3 starts the vibrator 2 vibration of the acanthosphere 4 and hydraulic oil is driven to contact, to promote in hydraulic oil Molten gas overflow;
Step 4 stands oil vessel 1, after the molten gas spilling in hydraulic oil is raised to the top of shoe cream room 11, records oil storage at this time The volume V2 of hydraulic oil in chamber 11, the dissolved-air rate of hydraulic oil can be calculated by formula (V1-V2)/V1.Certainly, in other realities It applies in example, molten gas incrementss can also be calculated according to the variation of the rotation of acanthosphere 4 front and back gas volume in shoe cream room 11, then by molten gas Incrementss can calculate dissolved-air rate divided by V1.
In one example, when detection, standard hydraulic oil and actual hydraulic pressure oil are measured respectively by preceding method respectively Dissolved-air rate, then compare and show whether the air content of actual hydraulic pressure oil more compared with the air content of standard hydraulic oil, can be to reality The molten gaseity of hydraulic oil is quickly judged.It specifically when detecting, can also be by two kinds of hydraulic oil under identical condition, Same amount is pumped out, to improve the accuracy of detection.In other examples, can pre-trial go out the molten gas of a variety of actual hydraulic pressure oil Amount, for example, it is qualified, underproof, and then comparing the dissolved-air rate that actual hydraulic pressure oil obtains through the invention therewith can be quick Differentiate whether hydraulic oil is qualified.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention Protection scope.

Claims (9)

1. a kind of pump out vibration hydraulic oil to detect the device of air content, which is characterized in that described device includes:
Oil vessel (1), including shoe cream room (11), oil inlet (12) and oil outlet (13) are equipped with the at the oil inlet (12) One valve (14) is equipped with the second valve (15) at the oil outlet (13);
Vibrator (2) is set in the shoe cream room (11);
Several acanthospheres (4), are set on the vibrator (2);And
The liquid pumping hole (52) of pump liquid mechanism, including drawing liquid pump (51), the drawing liquid pump (51) is connected to the oil outlet (13), is led to The drawing liquid pump (51) is crossed to pump out the hydraulic oil in the shoe cream room (11).
2. according to claim 1 pump out vibration hydraulic oil to detect the device of air content, which is characterized in that described device Further include:
Oil inlet pipe (6), is vertically arranged, and lower end is connected to the oil inlet (12);
Oil inlet disk (7) is arranged in the upper end of the oil inlet pipe (6), the height shoe cream room (11) of the oil inlet disk (7) Height is high.
3. according to claim 2 pump out vibration hydraulic oil to detect the device of air content, which is characterized in that the pump liquid Mechanism further include:
It connects liquid container (53), the liquid outlet of the drawing liquid pump (51) is connect by pipeline with the liquid container (53) that connects, by institute It states the hydraulic oil that drawing liquid pump (51) pumps out and is transported to described connect in liquid container (53).
4. according to claim 3 pump out vibration hydraulic oil to detect the device of air content, which is characterized in that the pump liquid Mechanism further include:
Liquid level sensor (54), setting connects in liquid container (53) described, for measuring the level value for connecing liquid container (53);
Controller, the signal output end electrical connection of the signal input part of the controller and the liquid level sensor (54), institute The control terminal of the signal output end and the drawing liquid pump (51) of stating controller is electrically connected.
5. according to claim 4 pump out vibration hydraulic oil to detect the device of air content, which is characterized in that the acanthosphere It (4) include sphere and the spine for being distributed in spherome surface.
6. according to claim 4 pump out vibration hydraulic oil to detect the device of air content, which is characterized in that the oil storage The top of chamber (11) is opening, and is provided with lid (17) the opening is mating.
7. according to claim 6 pump out vibration hydraulic oil to detect the device of air content, which is characterized in that the oil storage The top of chamber (11) is equipped with volume markings value (16).
8. according to claim 4 pump out vibration hydraulic oil to detect the device of air content, which is characterized in that the oil storage Chamber (11) is cylinder-like structure, and top is the funnel-shaped structure of back-off.
9. vibration hydraulic oil is pumped out as described in claim 1 to 8 is any to detect the application method of the device of air content, feature It is, comprising the following steps:
Step 1 first opens first valve (14), closes second valve (15), hydraulic oil is injected into the oil storage In chamber (11);
Step 2 turns off first valve (14), opens second valve (15), starts drawing liquid pump (51), so that described Section hydraulic oil discharge in shoe cream room (11), records the volume V1 of the interior hydraulic oil of the shoe cream room (11) after pump liquid, pump liquid is complete At the second valve of rear closing (15);
Then step 3 starts the vibrator (2) acanthosphere (4) is driven to shake with hydraulic oil and contacts;
Step 4 stands the oil vessel (1), records the volume V2 of the interior hydraulic oil of the shoe cream room (11) at this time, passes through formula (V1-V2)/V1 can calculate the dissolved-air rate of hydraulic oil.
CN201910656320.5A 2019-07-19 2019-07-19 It is a kind of to pump out vibration hydraulic oil to detect the device and its application method of air content Pending CN110231462A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113358853A (en) * 2021-06-18 2021-09-07 兰州理工大学 Portable hydraulic system oil gas content on-line automatic detection device
CN113484500A (en) * 2021-09-08 2021-10-08 南通华兴石油仪器有限公司 Experimental device for measuring gas content

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CN113484500B (en) * 2021-09-08 2022-04-15 南通华兴石油仪器有限公司 Experimental device for measuring gas content

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