CN208125557U - Oil viscosity detection device under a kind of ultra-high voltage environment - Google Patents
Oil viscosity detection device under a kind of ultra-high voltage environment Download PDFInfo
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- CN208125557U CN208125557U CN201820346891.XU CN201820346891U CN208125557U CN 208125557 U CN208125557 U CN 208125557U CN 201820346891 U CN201820346891 U CN 201820346891U CN 208125557 U CN208125557 U CN 208125557U
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Abstract
The utility model belongs to oil viscosity detection device under oil viscosity detection field more particularly to a kind of ultra-high voltage environment.Detection device includes end cap, O-ring seal one, capillary pipe plug, O-ring seal two, O-ring seal three, differential pressure pickup, connection oil duct, capillary, pressure hull, oil pipe, temperature sensor, flow sensor, pressure sensor, overflow valve, superpressure oil pump, motor, pressure-oil tank, overflow valve, oil pump, strainer valve, immersion oil motor, thermosistor.The utility model has used differential pressure pickup, and measurement data is obtained in a manner of convenient and fast, immersion oil motor and oil pump are housed inside pressure-oil tank, eliminate high pressure resistant rotatory sealing problem.Closing measuring system hyperbaric environment is maintained by one small flow super-pressure pump, provides the measurement larger flow oil liquid that oil viscosity needs using immersion oil motor driven oil pump.
Description
Technical field
The utility model relates to oil viscosity detection field, especially a kind of viscosity inspection under hyperpressure operating condition
Survey device.
Background technique
The viscosity characteristics of hydraulic oil liquid have very important influence to the dynamic property of hydraulic system, for deep-sea working solution
Equipment is pressed, since working environment is hyperpressure, Varying Oil Viscosity is larger.Designing a kind of can be used for oil liquid under ultra-high voltage environment
The device of viscosity measurements has important practical value.
Viscosity is also viscosity, is the internal friction between two layers of liquid in certain area, certain speed gradient, for
For liquid, this is a very important physical quantity.Existing method for detecting viscosity mainly has：
1, capillary tube method
Capillary viscometer is the instrument according to the measurement viscosity of hage oiseuillelaw design.Its working principle is that
When fluid to be measured flow through radius be r, length be 1 capillary when, keep its flow q certain, by breathe out root law, viscosity can be calculated
Value.
2, falling ball method
Object is set to fall in a fluid, the high fluid of viscosity, object is slower in the speed wherein to fall, therefore passes through
Falling speed may compare the size of fluid viscosity.
3, rotary process
The principle of rotational viscometer is based on object (such as cylinder, circular cone, garden plate, ball and the other shapes immersed in fluid
Rigid body) rotation or these objects it is static and when making the fluid rotary of surrounding, these objects are by the sticky torque by fluid
Effect, the size of sticky torque and the viscosity of fluid are directly proportional, pass through and measure the revolving speed brief introduction of sticky torque and rotary body and survey
Quantity of fluid viscosity.
Current published viscosity detecting device patent, is chiefly used in atmospheric pressure environment or mesolow operating condition, such as
Rotary in-line viscometer disclosed in cylinder rotary viscosimeter, CN202974800U disclosed in CN104122172A,
Rotational viscometer disclosed in CU203595648U can only all measure the oil viscosity under normal pressure state.CN2852109Y institute is public
The high-temperature high-pressure rotary viscometer opened, high temperature and pressure disclosed in CN2205004 fall column viscosimeter, measure the work of oil viscosity
Pressure is mesolow.High temperature and pressure viscosimeter disclosed in CN101685058A cannot accurately control the pressure in seal chamber,
High-voltage rotary viscosimeter disclosed in CN106596343A, the magnetic force conduction device driving force used is limited, and it is difficult to implement technology
Degree is higher, and measurement error is larger.
Utility model content
The utility model mainly solves the problems, such as to be to provide a kind of oil viscosity detection side under ultra-high pressure condition
Method；It devises high pressure closed fuel tank and provides big flow, high-voltage oil liquid for viscosity measurement；One kind is devised to be simple to manufacture, seal
It is required that the lower device using capillary detection high-voltage oil liquid viscosity.
The utility model focuses on maintaining closing measuring system hyperbaric environment by one small flow super-pressure pump, utilizes
Immersion oil motor driven oil pump provides larger flow high-voltage oil liquid and measures its viscosity.
To realize above-mentioned technical purpose, the utility model will take technical solution below：
A kind of hydraulic oil viscosity detection device, including end cap, O-ring seal one, capillary pipe plug, O-ring seal two, O
Type sealing ring three, differential pressure pickup, connection oil duct, capillary, pressure hull, oil pipe, temperature sensor, flow sensor, pressure
Force snesor, overflow valve, superpressure oil pump, motor, pressure-oil tank, overflow valve, oil pump, strainer valve, immersion oil motor, thermosistor.
Motor driven superpressure oil pump improves its internal pressure, the immersion oil in fuel tank to closed fuel tank input hydraulic pressure oil
Motor driven oil pump exports the hydraulic oil of certain flow, adjusts the temperature to measurement request by thermosistor.
The hydraulic oil with certain pressure and temperature exported by pressure-oil tank and thermosistor, enters capillary by oil pipe
Inside formula device for measuring viscosity.
To guarantee air-proof condition, there are one layer of O-ring seals one and matched between two sides end cap and pressure hull
Washer has O-ring seals two at two, there is O at two between capillary pipe plug and capillary between pressure hull and capillary pipe plug
Shape sealing ring three.
Hydraulic oil is returned to inside closed fuel tank by right side end cap by oil pipe, flow sensor after flowing through capillary, then
It is secondary to enter circulation.
Further, the oil liquid of the immersion oil motor driven hydraulic oil pump output certain flow in fuel tank, after thermosistor
Supply viscosity detecting device.When output pressure is excessively high, overflow valve work, to guarantee system safety.
Further, high-voltage oil liquid flows through the capillary inside viscosity detecting device, due to the viscous effect of oil liquid, passes through
Oil liquid can generate pressure decline when capillary, can measure the pressure between two pressure-measuring-points by high-precision differential pressure pickup
Difference.
Further, the pressure of steady flow condition between two measuring points inside high-precision differential pressure pickup measurement capillary is utilized
Difference is passed through the oil liquid flow of capillary using flow sensor measurement, is calculated by theoretical formula, oil liquid can be obtained in height
Press the viscosity number under operating condition.
Compared with traditional viscosity detecting device, possessed major advantage is the utility model：
1, motor and oil pump are immersed under high pressure oil environment, can provide high-pressure high-flow oil liquid for viscosity measurement, solution
Determined high pressure rotary sealing the problem of.
2, hyperbaric environment immersion capillary viscosity detects, and reduces the manufacture difficulty and sealing of high pressure viscosity detection device
It is required that.
3, using theoretical formula, one kind is converted with its viscosity relationship by the pressure change in oil liquid flow process and is easy to real
Device existing, for fluid viscosity test.
Viscosity calculations formula：
η is fluid to be measured kinematic viscosity in formula；Δ P is the pressure between two pressure-measuring-points that differential pressure pickup obtains
Difference；R is flow field outer wall pipe radius；qvIt is the oil liquid flow for flowing through capillary；L is in capillary between two pressure-measuring-points
Distance.
Detailed description of the invention
Fig. 1 is utility model device structure chart, in figure
1- end cap；2-O type sealing ring one；3- capillary pipe plug；4-O type sealing ring two；5-O type sealing ring three；6- pressure difference
Sensor；7- is connected to oil duct；8- capillary；9- pressure hull；10- oil pipe；11- temperature sensor；12- flow sensor；13-
Pressure sensor；14- overflow valve；15- super-pressure pump；16- motor；17- pressure-oil tank；18- overflow valve；19- oil pump；20- mistake
Trap valve；21- immersion oil motor；22- thermosistor.
Specific embodiment
The utility model is described in further detail with specific implementation method with reference to the accompanying drawing.
Motor 16 drives superpressure oil pump 15 to closed fuel tank 17 input hydraulic pressure oil, improves its internal pressure, in fuel tank
Immersion oil motor 21 drive oil pump 19, export the hydraulic oil of certain flow, pass through thermosistor adjust to measurement request temperature.
The hydraulic oil with certain pressure and temperature exported by fuel tank 17 and thermosistor 22, by oil pipe 10, into hair
Inside thin-tube type device for measuring viscosity.Further, due to the viscous effect of hydraulic oil, generation when hydraulic oil flows through capillary 8
Pressure decline, high-precision differential pressure pickup 6 can measure the pressure difference between two pressure-measuring-points.
To guarantee air-proof condition, there are one layer of O-ring seals 1 and matched between two sides end cap 1 and pressure hull 9
Washer, have O-ring seals 24 at two between pressure hull 9 and capillary pipe plug 3, between capillary pipe plug 3 and capillary 8
There are O-ring seals 35 at two.
Hydraulic oil is returned in closed fuel tank by right side end cap by oil pipe 10, flow sensor 12 after flowing through capillary
Portion is again introduced into circulation.
Since motor and oil pump are totally submerged in fuel tank internal, high voltage bearing rotatory sealing is not needed.
Oil duct 7 is by the high-voltage oil liquid between two pressure-measuring-points, inside the enclosure space outside capillary and pressure hull 9
Connection, reduces the pressure difference of sealing ring 4,5 both ends, reduces sealing difficulty.
Claims (3)
1. oil viscosity detection device under a kind of ultra-high voltage environment, it is characterised in that detection device includes end cap, O-ring seal
One, capillary pipe plug, O-ring seal two, O-ring seal three, differential pressure pickup, connection oil duct, capillary, pressure hull, oil
Pipe, temperature sensor, flow sensor, pressure sensor, overflow valve, superpressure oil pump, motor, pressure-oil tank, overflow valve, oil
Pump, strainer valve, immersion oil motor, thermosistor；
Motor driven superpressure oil pump improves its internal pressure, the immersion oil motor in fuel tank to closed fuel tank input hydraulic pressure oil
Oil pump is driven, the hydraulic oil of certain flow is exported, the temperature to measurement request is adjusted by thermosistor；
It is viscous to enter capillary type by oil pipe for the hydraulic oil with certain pressure and temperature exported by pressure-oil tank and thermosistor
It spends inside measuring device；
There are one layer of O-ring seals one and matched washer, pressure hull and capillary between two sides end cap and pressure hull
There are O-ring seals two at two between pipe plug, there are O-ring seals three at two between capillary pipe plug and capillary；
Hydraulic oil is returned to inside closed fuel tank by right side end cap by oil pipe, flow sensor after flowing through capillary, again into
Enter circulation.
2. oil viscosity detection device under a kind of ultra-high voltage environment as described in claim 1, it is characterised in that the immersion oil in fuel tank
Motor driven hydraulic oil pump exports the oil liquid of certain flow, by supplying viscosity detecting device after thermosistor, when output pressure mistake
Gao Shi, overflow valve work, to guarantee system safety.
3. oil viscosity detection device under a kind of ultra-high voltage environment as described in claim 1, it is characterised in that high-voltage oil liquid flows through
Capillary inside viscosity detecting device, due to the viscous effect of oil liquid, oil liquid can generate pressure decline when passing through capillary, lead to
Pressure difference between two pressure-measuring-points can be measured by crossing high-precision differential pressure pickup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820346891.XU CN208125557U (en) | 2018-03-14 | 2018-03-14 | Oil viscosity detection device under a kind of ultra-high voltage environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820346891.XU CN208125557U (en) | 2018-03-14 | 2018-03-14 | Oil viscosity detection device under a kind of ultra-high voltage environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208125557U true CN208125557U (en) | 2018-11-20 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820346891.XU Expired - Fee Related CN208125557U (en) | 2018-03-14 | 2018-03-14 | Oil viscosity detection device under a kind of ultra-high voltage environment |
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| CN (1) | CN208125557U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108169071A (en) * | 2018-03-14 | 2018-06-15 | 北京科技大学 | Oil viscosity detection device under a kind of ultra-high voltage environment |
-
2018
- 2018-03-14 CN CN201820346891.XU patent/CN208125557U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108169071A (en) * | 2018-03-14 | 2018-06-15 | 北京科技大学 | Oil viscosity detection device under a kind of ultra-high voltage environment |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181120 Termination date: 20200314 |
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| CF01 | Termination of patent right due to non-payment of annual fee |