CN208860696U - A kind of capillary device of automatic measurement refrigerant and lubricating oil viscosity - Google Patents
A kind of capillary device of automatic measurement refrigerant and lubricating oil viscosity Download PDFInfo
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- CN208860696U CN208860696U CN201821358529.0U CN201821358529U CN208860696U CN 208860696 U CN208860696 U CN 208860696U CN 201821358529 U CN201821358529 U CN 201821358529U CN 208860696 U CN208860696 U CN 208860696U
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- capillary
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Abstract
The utility model discloses a kind of automatic measurement refrigerant and its with the capillary device of lubricating oil, capillary device is formed by fixing bracket, laser sensor, rotating actuator and pressure vessel, capillary viscometer is fixedly installed with inside pressure vessel, capillary viscometer is made of upper liquid reservoir, upper timing ball, lower timing ball, capillary, lower liquid reservoir, bypass pipe and N-type pipe, and upper liquid reservoir, upper timing ball, lower timing ball, capillary and lower liquid reservoir are successively interconnected from top to bottom；It is connected with each other between upper liquid reservoir and lower liquid reservoir by the bypass pipe, upper liquid reservoir, lower accumulator volumes are identical and are all greater than the volume of upper timing ball, lower timing ball, N-type pipe is set to the upper end of bypass pipe, for realizing fluid injection and prevents overturning two kinds of functions of leakage；The utility model is designed using N-type pipe, can not only facilitate fluid injection, and during overturning rises liquid, can prevent liquid from leaking into pressure vessel by liquid injection port, avoids repeating to fill testing liquid.
Description
Technical field
The utility model belongs to liquid viscosity testing field, and in particular to one kind measures refrigerant and profit under hyperbaric environment
The capillary device of oil viscosity.
Background technique
Viscosimeter is the instrument for measuring the viscosity of fluid (liquids and gases).Viscosity is the basic physical properties parameter of fluid
One of, the acquisition of sticky parameter plays a crucial role the development of all conglomeraties.Therefore, the measuring study work of viscosity
Increasingly paid attention to.Viscosimeter is broadly divided into capillary viscometer, rotational viscometer and falling ball viscometer three classes.Capillary
Viscosimeter is widely used due to its is simple and reliable, accuracy is high the features such as, and is suitable for some occasions for having particular/special requirement, accounts for
According to the significant market in domestic viscosity measurement field.
Currently used capillary viscometer is suitable for different occasions, can measure plurality of liquid viscosity, but they can not be certainly
The viscosity of the volatile mixed working fluid of dynamicization precise measurement, is primarily present following problem: (1) capillary viscosity measurement at present uses more
Manual manual time-keeping, there are human errors, reduce the accuracy of result, and it is commonly viscous to be difficult to realize automatic measurement (2)
When degree meter measurement, testing liquid is mostly directly contacted with outside air, therefore mixed working fluid volatile for low boiling point, need to be in high pressure
Use detection of capillary tube viscosity under sealed environment, it is domestic at present frequently with measuring method or measurement accuracy it is not high, or stablize
Property not high (3) capillary viscosity meter range it is relatively narrow, single branch viscosimeter is difficult to measure several viscosity and differs biggish working medium.
Utility model content
The purpose of this utility model is to overcome deficiency in the prior art, a kind of automatic measurement refrigerant and profit are provided
The capillary device of oil viscosity, the device is high pressure resistant, and is capable of measuring a variety of viscosity and differs biggish low boiling point mixed working fluid.
The purpose of this utility model is achieved through the following technical solutions:
A kind of capillary device of automatic measurement refrigerant and lubricating oil viscosity, is set in thermostat, capillary device
The top of inner pressure vessel is connected by connecting tube with vacuum pump, refrigerant tank, and the connection between pressure vessel and vacuum pump is logical
Total valve and the control of the second valve are crossed, the connection between pressure vessel and refrigerant tank is controlled by total valve and the first valve,
The connection of pressure vessel and pressure sensor is controlled by third valve, and control and data collection system control entire capillary dress
It sets, and by pressure sensor and platinum resistance thermometer measurement and shows real-time temperature and pressure numerical value；The capillary dress
It sets and is made of fixed bracket, laser sensor, rotating actuator and pressure vessel, is fixedly installed with inside the pressure vessel
Capillary viscometer, the capillary viscometer is by upper liquid reservoir, upper timing ball, lower timing ball, capillary, lower liquid reservoir, side
Siphunculus and N-type pipe are constituted, the upper liquid reservoir, upper timing ball, lower timing ball, capillary and lower liquid reservoir successively phase from top to bottom
It is intercommunicated；It is connected with each other between upper liquid reservoir and lower liquid reservoir by the bypass pipe, the upper liquid reservoir, lower accumulator volumes
Volume that is identical and being all greater than upper timing ball, lower timing ball, the N-type pipe is set to the upper end of bypass pipe, for realizing fluid injection
With prevent overturning two kinds of functions of leakage；
The fixed bracket, rotating actuator and the pressure vessel are connected as one, and facilitate capillary device whole
It is taken out from thermostat；Rotating actuator is made of chain, upper transfer gear and lower transmissioning gear, is adopted by control and data
Collecting system controls upper transfer gear rotation, by way of chain drive, drives lower transmissioning gear rotation, and then pass through underdrive
The overturning of gear band dynamic pressure force container；
The laser sensor is connected as one with fixed bracket, is respectively arranged at the upper, middle and lower mark of capillary viscometer
At line, when liquid flows through at upper graticule or middle graticule, laser sensor inductive signal is transferred to control and data collection system, fixed
When device start timing, when liquid drops at lower graticule, timer terminates the delay device of timing, control and data collection system
The transmission mechanism controlled on fixed bracket drives pressure vessel to be rotated by 360 °, and repeats the above process, circulation measurement liquid viscosity.
Further, the N-type pipe and horizontal with capillary tube direction are distributed in 45° angle, to ensure that N-type pipe will not block timing
Ball influences timing measuring process.
Further, the upper and lower part of the pressure vessel is respectively equipped with observation window and lower observation window.
Compared with prior art, beneficial effect brought by the technical solution of the utility model is:
(1) in the utility model N-type pipe design so that capillary viscometer is connected to pressure vessel, inside and outside viscosimeter
Pressure balance, pressure difference are undertaken by pressure vessel, therefore can realize the measurement of the volatile working medium viscosity of low boiling point under high pressure.
(2) liquid injection pipe of capillary viscometer all uses straight tube form to achieve the purpose that fluid injection at present.The utility model
It is designed using N-type pipe, fluid injection can not only be facilitated, and during overturning rises liquid, can prevent liquid from leaking into pressure by liquid injection port
Container, therefore can avoid repeating filling testing liquid, and overturns a liter liquid mode, will not influence testing liquid component, it can be achieved that
The duplicate measurements of volatile mixed working fluid.
(3) existing capillary viscometer mostly uses greatly single timing spherical structure, it is difficult to measure the different liquid of a variety of viscosity.This
Double timing spherical structures that utility model uses can realize single branch viscosity meter refrigerant and refrigerant+lubricating oil both viscosity
Differ biggish working medium.
(4) laser sensor can realize the automatic measurement of capillary viscometer in the utility model, improve experimental result
Stability and veracity.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of utility model device.
Fig. 2 is the structural schematic diagram of the utility model capillary viscometer.
Fig. 3 is the left view structural representation of Fig. 1.
Appended drawing reference: 1- capillary viscometer；2- pressure vessel；3-N type pipe；The upper liquid reservoir of 4-；The upper timing ball of 5-；Under 6-
Timing ball；7- capillary；Liquid reservoir under 8-；9- bypass pipe；The first valve of 10-；The second valve of 11-；12- total valve；13- third
Valve；14- pressure sensor；15- upper transfer gear；16- lower transmissioning gear；17- laser sensor；The upper observation window of 18-；19-
Lower observation window；20- fixes bracket；21- thermostat；22- platinum resistance thermometer；23- refrigerant tank；24- vacuum pump；25- control
And data collection system
Specific embodiment
In order to which the technical features, objects and effects to this method are more clearly understood, with reference to the accompanying drawing and specifically
Embodiment further illustrates the technical solution of the utility model.
As shown in Figure 1 to Figure 3, the utility model provides the capillary of a kind of automatic measurement refrigerant and lubricating oil viscosity
Device is set in thermostat 21, and the top of pressure vessel 2 is connected by connecting tube with vacuum pump 24, refrigerant tank 23, pressure
Connection between container 2 and vacuum pump 24 is controlled by total valve 12 and the second valve 11, pressure vessel 2 and refrigerant tank 23 it
Between connection controlled by total valve 12 and the first valve 10, the connection of pressure vessel 2 and pressure sensor 14 passes through third valve
Door 13 controls.Control and data collection system 25 control entire capillary device, and pass through pressure sensor 14 and platinum resistance temperature
Degree counts 22 to measure and show real-time temperature and pressure numerical value.
Capillary device includes fixed bracket 20, laser sensor 17, rotating actuator, pressure vessel 2, pressure vessel
2, laser sensor 17, fixed bracket 20 and rotating actuator are connected as one, can be integrally from thermostat in cleaning device
It is taken out in 21, anti-locking apparatus gets rusty aging.Capillary viscometer 1, capillary viscometer 1 are fixedly installed with inside pressure vessel 2
It is made of upper liquid reservoir 4, upper timing ball 5, lower timing ball 6, capillary 7, lower liquid reservoir 8, bypass pipe 9 and N-type pipe 3, upper reservoir
Device 4, upper timing ball 5, lower timing ball 6, capillary 7 and lower liquid reservoir 8 are successively interconnected from top to bottom；Upper timing ball 5 is under
The upper and lower part of timing ball 6 is respectively marked with timing lines.Upper liquid reservoir 4 is attached with lower liquid reservoir 8 by bypass pipe 9, and N-type pipe 3 is made
For liquid injection pipe, one end is used to inject fluid to be measured, and one end is connect with 9 top of bypass pipe.Capillary viscometer 1 is overlooked, can be seen
It is distributed to capillary 7 and N-type pipe 3 in 45° angle.
It is separately installed with upper observation window 18 and lower observation window 19 in upper timing ball 5, lower timing ball 6 and lower 8 two sides of liquid reservoir,
To observe the liquid level in lower liquid reservoir 8 and upper timing ball 5, lower timing ball 6.Upper observation window 18 and lower observation window 19 are main
It is made of sapphire glass, to guarantee having enough high-voltage resistance capabilities.When liquid level flows through or when middle graticule, laser sensor 17
Control and data collection system are sent a signal to, timer starts timing, and when liquid level flows through lower graticule, timer terminates timing,
After delay device is delayed one minute, the transmission mechanism that system controls on fixed bracket 20 drives pressure vessel 2 to be rotated by 360 °.
Rotating actuator is made of gear 15, lower gear 16, chain, and rotating actuator is acquired by control and data
System automatically controls.
Specific step is as follows when being measured by the present apparatus:
Step 1 opens total valve 12, the second valve 11, closes the first valve 10, third valve 13, opens vacuum pump pair
Pressure vessel 2 vacuumizes, and after the vacuum degree in 2 inside of pressure vessel and associated conduit reaches setting value, first closes the second valve
Door 11, turns off vacuum pump.The first valve 10 is opened, by N-type pipe 3, injects liquid refrigerant to capillary viscometer 1.It surveys
When measuring refrigerant viscosity, until liquid is full of lower liquid reservoir 8, the first valve 10 is closed, total valve 12 is turned off；Measure refrigerant
When+lubricating oil viscosity, liquid can close the first valve 10 when being full of lower 8 half volume of impregnator, turn off total valve 12.
Step 2 realizes the temperature control to experimental rig, 22 precise measurement constant temperature of platinum resistance thermometer by thermostat 21
Temperature in slot 21 begins turning a liter liquid process after device reaches sufficient thermal balance.
Step 3, control system control pressure vessel 2 rotate 180 °, until the liquid of lower liquid reservoir 8 fully enters reservoir
Device 4, then control pressure vessel 2 and rotate 180 °.When measuring the viscosity of refrigerant, make liquid full of upper timing ball 5 and lower timing ball
6；When measuring refrigerant+lubricating oil viscosity, since filling liquid is less, refrigerant is full of lower timing ball 6, and liquid level is up to
At the 2/3 of timing ball 5.
Step 4, when upper timing lines of the liquid level by upper timing ball 5 or lower timing ball 6, laser sensor 17 issues letter
Number, timer starts timing, and when liquid level drops at the lower timing lines of lower timing ball 6, laser sensor 17 issues signal, timing
Device terminates timing.By the resulting time t of timing, prepare liquid is obtained according to Hagen-Poiseuille (Ha Gen-poiseuille) formula
The viscosity of body.
Step 5, at the lower timing lines that testing liquid liquid level flows through lower timing ball 6, laser sensor 17 issue signal, prolong
After slow 1 minute, control pressure vessel 2 carries out overturning and rises liquid process, repeats step 3,4, can recycle the viscous of measurement testing liquid
Degree.
The utility model is not limited to embodiments described above.Above the description of specific embodiment is intended to describe
With illustrate the technical solution of the utility model, the above mentioned embodiment is only schematical, is not restrictive.?
In the case of not departing from the utility model aims and scope of the claimed protection, those skilled in the art are practical at this
The specific transformation of many forms can be also made under novel enlightenment, these are belonged within the protection scope of the utility model.
Claims (3)
1. a kind of capillary device of automatic measurement refrigerant and lubricating oil viscosity, is set in thermostat, in capillary device
The top of pressure vessel is connected by connecting tube with vacuum pump, refrigerant tank, and the connection between pressure vessel and vacuum pump passes through
Total valve and the control of the second valve, the connection between pressure vessel and refrigerant tank are controlled by total valve and the first valve, pressure
The connection of force container and pressure sensor is controlled by third valve, and control and data collection system control entire capillary dress
It sets, and by pressure sensor and platinum resistance thermometer measurement and shows real-time temperature and pressure numerical value；It is characterized in that, institute
It states capillary device and is formed by fixing bracket, laser sensor, rotating actuator and pressure vessel, inside the pressure vessel
Be fixedly installed with capillary viscometer, the capillary viscometer by upper liquid reservoir, upper timing ball, lower timing ball, capillary, under
Liquid reservoir, bypass pipe and N-type pipe are constituted, and the upper liquid reservoir, upper timing ball, lower timing ball, capillary and lower liquid reservoir are from upper
It is successively interconnected under；Be connected with each other between upper liquid reservoir and lower liquid reservoir by the bypass pipe, the upper liquid reservoir, under
Accumulator volumes are identical and are all greater than the volume of upper timing ball, lower timing ball, and the N-type pipe is set to the upper end of bypass pipe, use
In realization fluid injection and prevent overturning two kinds of functions of leakage；
The fixed bracket, rotating actuator and the pressure vessel are connected as one, and facilitate capillary device whole from perseverance
It is taken out in warm slot；Rotating actuator is made of chain, upper transfer gear and lower transmissioning gear, passes through control and data acquisition system
System control upper transfer gear rotation drives lower transmissioning gear rotation, and then pass through lower transmissioning gear by way of chain drive
Drive the overturning of pressure vessel；
The laser sensor is connected as one with fixed bracket, is respectively arranged at the upper, middle and lower graticule of capillary viscometer
Place, when liquid flows through at upper graticule or middle graticule, laser sensor inductive signal is transferred to control and data collection system, timing
Device starts timing, and when liquid drops at lower graticule, timer terminates timing, control and the delay device control of data collection system
The transmission mechanism made on fixed bracket drives pressure vessel to be rotated by 360 °, and repeats the above process, circulation measurement liquid viscosity.
2. a kind of capillary device of automatic measurement refrigerant and lubricating oil viscosity according to claim 1, which is characterized in that
The N-type pipe and horizontal with capillary tube direction are distributed in 45° angle, to ensure that N-type pipe will not block timing ball, influence timing measuring mistake
Journey.
3. a kind of capillary device of automatic measurement refrigerant and lubricating oil viscosity according to claim 1, which is characterized in that
The upper and lower part of the pressure vessel is respectively equipped with observation window and lower observation window.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821358529.0U CN208860696U (en) | 2018-08-22 | 2018-08-22 | A kind of capillary device of automatic measurement refrigerant and lubricating oil viscosity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821358529.0U CN208860696U (en) | 2018-08-22 | 2018-08-22 | A kind of capillary device of automatic measurement refrigerant and lubricating oil viscosity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208860696U true CN208860696U (en) | 2019-05-14 |
Family
ID=66415382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821358529.0U Withdrawn - After Issue CN208860696U (en) | 2018-08-22 | 2018-08-22 | A kind of capillary device of automatic measurement refrigerant and lubricating oil viscosity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208860696U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108776082A (en) * | 2018-08-22 | 2018-11-09 | 天津大学 | A kind of capillary device and method of automatic measurement refrigerant and lubricating oil viscosity |
-
2018
- 2018-08-22 CN CN201821358529.0U patent/CN208860696U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108776082A (en) * | 2018-08-22 | 2018-11-09 | 天津大学 | A kind of capillary device and method of automatic measurement refrigerant and lubricating oil viscosity |
| CN108776082B (en) * | 2018-08-22 | 2023-06-27 | 天津大学 | Capillary tube device and method for automatically measuring viscosity of refrigerant and lubricating oil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190514 Effective date of abandoning: 20230627 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190514 Effective date of abandoning: 20230627 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |