CN107589048A - A kind of new automatic kinematic viscosity tester and its method of testing - Google Patents
A kind of new automatic kinematic viscosity tester and its method of testing Download PDFInfo
- Publication number
- CN107589048A CN107589048A CN201711007550.6A CN201711007550A CN107589048A CN 107589048 A CN107589048 A CN 107589048A CN 201711007550 A CN201711007550 A CN 201711007550A CN 107589048 A CN107589048 A CN 107589048A
- Authority
- CN
- China
- Prior art keywords
- waste liquid
- ubbelohde
- liquid level
- liquid
- pipes
- 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
Links
Abstract
The present invention provides a kind of new automatic kinematic viscosity tester and its method of testing, the new automatic kinematic viscosity tester includes four branch road Ubbelohde pipes, four branch road Ubbelohde pipes are arranged on the kinematic viscosity test that test solution is carried out in closed Dewar bottle, freezed by superposition type compression refigerating machine to reach the low temperature requirements of constant temperature bath, utilize upper liquid level sensor and the level information of lower liquid level sensor detection test solution, and kinematic viscosity value is calculated by controller, test solution after test and the cleaning fluid for cleaning four branch road Ubbelohde pipes are first expelled to waste liquid caching box by waste liquid delivery line, outside waste liquid barrel is pushed out to by waste liquid caching box again.The present invention connects out a tiny drain pipe in standard crow formula viscosity bottom of the tube and forms four branch road Ubbelohde pipes for the ease of cleaning；And feed liquor is gone out into liquid to be separated, circulating technology can save cleaning agent in feed liquor, and equipment instrument can be greatly reduced by going out circulating technology in liquid.
Description
Technical field
The present invention relates to a kind of tester, specifically, be related to a kind of new automatic kinematic viscosity tester and
Its method of testing.
Background technology
Kinematic viscosimeter is widely used in measuring the kinematic viscosity of liquid, in actual applications, generally by viscosimeter with passing
Induction device and control device combine, and form automatic testing equipment, its operation principle is under a certain stationary temperature, passes through measure
Liquid flows through the time of kinematic viscosimeter under gravity, to calculate the kinematic viscosity of liquid at this temperature, but it is traditional automatic
The shortcomings that kinematic viscosity test device is bulky, and liquid inlet volume is excessive during cleaning, and cleaning fluid consumption is too fast.
The content of the invention
In place of solving above-mentioned the deficiencies in the prior art, it is an object of the invention to provide a kind of new automatic motion
Viscosity test instrument and its method of testing, the defects of to overcome in the prior art.
To achieve these goals, it is described new the invention provides a kind of new automatic kinematic viscosity tester
Full-automatic kinematic viscosity tester includes temperature control system, measuring system, gas circuit unit and control system；Wherein, the temperature control
System includes Dewar bottle, thermostatic medium, temperature sensor, superposition type compression refigerating machine, heating tube, solid-state voltage regulator, stirring system
System and cooling fan；Wherein, thermostatic medium is contained with inside Dewar bottle, superposition type compression refigerating machine is to thermostatic medium system
Cold, to reach the low temperature requirements of constant temperature bath, heating tube carries out pulsed heating to thermostatic medium, with the temperature of regulating thermostatic medium
Degree, and inline solid state pressure regulator carries out partial pressure in heating tube, temperature sensor monitors the temperature of thermostatic medium, stirring system in real time
The temperature of system and cooling fan auxiliary adjustment thermostatic medium；The measuring system includes four branch road Ubbelohde pipes, black formula capillary pipe clamp
Tool, upper liquid level sensor, lower liquid level sensor and optical fiber/photoelectricity fixing device；Wherein, four branch road Ubbelohde pipes are arranged on close
Be fixed in the Dewar bottle that closes and by black formula capillary clamp, optical fiber/photoelectricity fixing device by upper liquid level sensor and
Lower liquid level sensor is sequentially fixed at high scale mark corresponding to four branch road Ubbelohde pipes and lower scale mark；The gas circuit list
Member includes blower pump, aspiration pump, two-way cleaning fluid, cleaning fluid caching bubble, waste liquid caching box, outside waste liquid barrel and some electromagnetism
Valve；Wherein, the two-way cleaning fluid of A units and unit B composition is delayed by magnetic valve and cleaning fluid caching bubble connection, cleaning fluid respectively
Deposit bubble to be connected with blower pump, aspiration pump and four branch road Ubbelohde pipes respectively by magnetic valve, blower pump, aspiration pump and four branch road Ubbelohdes
Pipe is connected by magnetic valve with waste liquid caching box respectively, and waste liquid caching box is connected by magnetic valve with outside waste liquid barrel；The control
System processed includes controller, 12V/24V modular power sources, 220V AC powers, touch display screen and printer；Wherein, controller
Including master control control panel and industrial control board, thermostatic medium temperature control overlapping that master control control panel monitors in real time according to temperature sensor
Formula compression refigerating machine, heating tube and solid-state voltage regulator；220V AC powers are that heating tube and solid-state voltage regulator are powered；Upper liquid level inspection
Survey device and lower liquid level sensor feeds back detection information to master control control panel；12V/24V modular power sources are industrial control board and some
Magnetic valve provides operating voltage, and industrial control board is connected with touch display screen and printer respectively.
As the further explanation to new automatic kinematic viscosity tester of the present invention, it is preferable that four
Road Ubbelohde pipe includes supervisor, side pipe, branch pipe and waste liquid delivery line, and supervisor includes what is be sequentially connected from top to bottom positioned at same axis
Straight length, buffering bubble, measurement bubble, capillary tube segment, storage bubble and bend loss, bend loss are connected with branch pipe, and side pipe steeps with storage
It is connected；Waste liquid delivery line connects the bottommost in bend loss.
As the further explanation to new automatic kinematic viscosity tester of the present invention, it is preferable that upper liquid
Face detection means and lower liquid level sensor use fiber optic detection system or photodetector system, and fiber optic detection system is used for -40
The sample detection of DEG C -+120 DEG C scopes, photodetector system are used for the sample detection of -70 DEG C -+120 DEG C scopes.
As the further explanation to new automatic kinematic viscosity tester of the present invention, it is preferable that upper liquid
Face detection means and lower liquid level sensor are a pair of correlation type optical fiber, two pairs of correlation type optical fiber be arranged on measurement bubble both sides and
It is respectively aligned to high scale mark and lower scale mark, every a pair of correlation types fiber-coaxial and vertical with capillary tube segment.
As the further explanation to new automatic kinematic viscosity tester of the present invention, it is preferable that to penetrating
Type optical fiber interior diameter is 0.5mm.
In order to realize another object of the present invention, present invention also offers a kind of kinematic viscosity new automatic as mentioned
The method of testing of tester, the method for testing comprise the following steps：
Step 1)：Vavuum pump is set at supervisor's mouth of pipe of four branch road Ubbelohde pipes, and vavuum pump will be opened in test process to be store
The test solution in bubble is deposited by being extracted on capillary tube segment in measurement bubble；
Step 2)：After upper drawing liquid face reaches the position of the test scale mark on measurement bubble top, upper liquid level sensor
Start to detect liquid level and liquid level information is transferred to controller；When liquid level reaches the expansion of buffering bubble, controller
Magnetic valve and vavuum pump dead electricity are controlled, test solution is flowed downward under gravity；
Step 3)：Controller is marked between lower scale mark with the accuracy of timekeeping record liquid level of 0.01 second by high scale
Time difference, and calculate kinematic viscosity value and complete a viscosity number result measure；
Step 4)：The test solution tested enters waste liquid delivery line by the bottommost of bend loss, in the presence of magnetic valve
Waste liquid is drawn into waste liquid caching box by waste liquid delivery line, turns off aspiration pump, and waste liquid is pushed out into outside waste liquid barrel；
Step 5)：Cleaning agent in A units or unit B is first extracted into 30ml cleaning fluid caching bubble, closes aspiration pump,
Cleaning fluid is slowly pushed into supervisor, side pipe and the branch pipe of four branch road Ubbelohde pipes by magnetic valve, and aspirated by waste liquid delivery line
Into waste liquid caching box, aspiration pump is turned off, test solution is pushed out to outside waste liquid barrel；
Step 6)：The pre-stage air inlet valve of waste liquid caching box is opened, closes entering for any two pipes in supervisor, side pipe and branch pipe
Gas control valve；Start aspiration pump and negative pressure is taken out to waste liquid caching box, air-flow is entered from the pipe of opening and defeated from waste liquid delivery line
Go out, be then sucked into by waste liquid caching box outside instrument；
Step 7)：During being arranged outside air-flow, the residual liquid in pipe is retained down by waste liquid caching box, pause 3-5S
Afterwards, the rear class magnetic valve of blower pump and waste liquid caching box is started, the liquid for making to remain in waste liquid caching box is pushed out into outside
Waste liquid barrel；
Step 8)：Aforesaid operations are repeated, so that air-flow passes sequentially through supervisor, side pipe and branch pipe, are completed to four branch road Ubbelohdes
The first drying circulation of pipe；By the drying cycle of 3-5 times, four branch road Ubbelohde pipes are dry by thorough roars of laughter.
As the further explanation to method of testing of the present invention, it is preferable that installation among cleaning fluid caching bubble
Liquid level information is simultaneously transferred to controller, works as cleaning fluid by liquid level sensor, the liquid level of liquid level sensor detection cleaning fluid
When caching the half position of bubble into cleaning fluid, controller control stops drawing liquid, to control liquid inlet volume.
As the further explanation to method of testing of the present invention, it is preferable that cleaning fluid caching bubble passes through airway tube
It is connected with four branch road Ubbelohde pipes, spraying head type structure is used in four branch road Ubbelohde pipe exits and the junction of the airway tube, with
Ensure that cleaning fluid uniformly slowly flows down along supervisor, side pipe and branch pipe.
The present invention connects out a tiny drain pipe in standard crow formula viscosity bottom of the tube and forms four for the ease of cleaning
Road Ubbelohde pipe；And feed liquor is gone out into liquid to be separated, circulating technology can save cleaning agent in feed liquor, and going out circulating technology in liquid can be big
It is big to reduce equipment instrument.
Brief description of the drawings
Fig. 1 is the composition frame chart of the new automatic kinematic viscosity tester of the present invention；
Fig. 2 is the structural representation of the four branch road Ubbelohde pipes of the present invention；
Fig. 3 is the connection diagram of the gas circuit unit of the present invention.
Embodiment
It is attached in conjunction with appended preferred embodiment in order to further appreciate that structure, feature and the other purposes of the present invention
As follows with accompanying drawing detailed description, this accompanying drawing embodiment described is merely to illustrate technical scheme, and non-limiting
Invention.
As shown in figure 1, Fig. 1 is the composition frame chart of the new automatic kinematic viscosity tester of the present invention；It is described new
Full-automatic kinematic viscosity tester includes temperature control system, measuring system, gas circuit unit and control system；Wherein, it is of the invention
Temperature control system includes Dewar bottle 1, thermostatic medium 2, temperature sensor 3, superposition type compression refigerating machine 4, heating tube 5, solid-state pressure regulation
Device 6, stirring system and cooling fan；Wherein, thermostatic medium 2 is contained with inside Dewar bottle 1, superposition type compression refigerating machine 4 is to perseverance
Warm medium 2 is freezed, and to reach the low temperature requirements of constant temperature bath, heating tube 5 carries out pulsed heating to thermostatic medium 2, to adjust
The temperature of thermostatic medium is saved, and inline solid state pressure regulator 6 carries out partial pressure in heating tube 5, temperature sensor 3 monitors constant temperature in real time
The temperature of the temperature of medium 2, stirring system and cooling fan auxiliary adjustment thermostatic medium 2.Constant temperature bath is set to reach -70 DEG C low
Temperature requires that depth of freezing and Insulation require all very high, and therefore, the present invention is using the larger Dewar bottle conduct of vacuum thickness
Constant temperature bathtub, isolate the influence of ambient temperature using the big vacuum of Dewar bottle；In order to reach the refrigeration depth of requirement, refrigeration side
Formula must use superposition type compressor cooling, superposition type compression refigerating machine refrigeration, it is ensured that cooling rate is fast, and temperature-measuring range is wide, and 1 is small
When interior temperature can be from normal temperature to -70 DEG C, each temperature spot is freely set；To ensure that the power of compressor is sufficiently large simultaneously, during constant temperature,
Starting compressor operating pattern according to different temperature spots, program controls heating tube to carry out pulsed heating by pid algorithm,
To offset unnecessary compressor cold, so as to reach stationary temperature, in order to more preferably carry out thermostatic control, the machine heating work(
Rate is designed as adjustable mode, i.e., solid-state pressure regulator of being connected in heating tube carries out partial pressure, to meet different temperature control point institutes
The different requirement of general power need to be heated.
The present invention measuring system include four branch road Ubbelohde pipes 7, black formula capillary clamp 8, upper liquid level sensor 9, under
Liquid level sensor 10 and optical fiber/photoelectricity fixing device 11；Wherein, four branch road Ubbelohde pipes 7 are arranged in closed Dewar bottle 1 simultaneously
It is fixed by black formula capillary clamp 8, optical fiber/photoelectricity fixing device 11 is by upper liquid level sensor 9 and lower level detection
Device 10 is sequentially fixed at high scale mark corresponding to four branch road Ubbelohde pipes 7 and lower scale mark.
The present invention uses two class detecting systems, including fiber optic detection system and photodetector system, and fiber optic detection system is used
In the sample detection of -40 DEG C -+120 DEG C scopes, photodetector system is used for the sample detection of -70 DEG C -+120 DEG C scopes.It is excellent
Selection of land, upper liquid level sensor 9 and lower liquid level sensor 10 are a pair of correlation type optical fiber, and two pairs of correlation type optical fiber are arranged on
Measurement steeps 113 both sides and is respectively aligned to high scale mark and lower scale mark, every a pair of correlation types fiber-coaxial and and capillary
Section 114 is vertical.The concave meniscus formed during test between test solution and air, concave meniscus by refraction of the test optical fiber point to light compared with
Greatly, the light now received substantially dies down, and forms the voltage signal of mutation, passes through the change of in good time comparison voltage in program
Judge that liquid level reaches situation.Because the interior diameter at test capillary detection position only has 6mm or so, therefore its prepare liquid for being formed
Face is very thin, and in order to capture the signal of liquid level process, the correlation type optical fiber interior diameter of selection only has 0.5mm, and it can sense
To a diameter of 0.03mm small items, therefore, must assure that when optical fiber detector is installed correlation type close it is fine coaxial and and
Capillary is vertical, only ensures to realize that liquid level accurately detects in the case that detecting system machining accuracy is enough.
Fig. 3 is refer to, Fig. 3 is the connection diagram of the gas circuit unit of the present invention；The gas circuit unit of the present invention includes blowing
Pump 12, aspiration pump 13, two-way cleaning fluid 14, cleaning fluid caching bubble 15, waste liquid caching box 16, outside waste liquid barrel 17 and some electromagnetism
Valve；Wherein, the two-way cleaning fluid 14 of A units and unit B composition is connected by magnetic valve with cleaning fluid caching bubble 15 respectively, is cleaned
Liquid caching bubble 15 is connected with blower pump 12, the branch road Ubbelohde pipe 7 of aspiration pump 13 and four respectively by magnetic valve, blower pump 12, pumping
The branch road Ubbelohde pipe 7 of pump 13 and four is connected by magnetic valve with waste liquid caching box 16 respectively, waste liquid caching box 16 by magnetic valve with
Outside waste liquid barrel 17 connects.
The control system of the present invention is aobvious including controller 18,12V/24V modular power sources 19,220V AC powers 20, touch
Display screen 21 and printer 22；Wherein, controller 18 includes master control control panel and industrial control board, and master control control panel is according to temperature sensor
The temperature control superposition type compression refigerating machine 4 of thermostatic medium 2, heating tube 5 and the solid-state voltage regulator 6 monitored in real time；220V alternating currents
Source 20 is that heating tube 5 and solid-state voltage regulator 6 are powered；Upper liquid level sensor 9 and lower liquid level sensor 10 feedback detection information
To master control control panel；12V/24V modular power sources 19 provide operating voltage for industrial control board and some magnetic valves, and industrial control board is respectively with touching
Touch display screen 21 and printer 22 connects.
Fig. 2 is refer to, Fig. 2 is the structural representation of the four branch road Ubbelohde pipes of the present invention；Four branch road Ubbelohde pipes 7 are in standard
Transformation is carried out on the basis of black formula viscosity tube to form, and adds a waste liquid export more the bottom of original standard crow formula viscosity tube
Pipe, when cleaning roars of laughter are dry, cleaning fluid enters from three main pipes, and the waste liquid after cleaning is discharged from waste liquid delivery line.Therefore,
Four branch road Ubbelohde pipes 7 include supervisor 71, side pipe 72, branch pipe 73 and waste liquid delivery line 74, and supervisor 71 is included positioned at same axis certainly
It is upper and under the straight length 701, buffering bubble 702, measurement bubble 703, capillary tube segment 704, storage bubble 705 and the bend loss that are sequentially connected
706, bend loss 706 is connected with branch pipe 73, and side pipe 72 is connected with storage bubble 705；Waste liquid delivery line 74 is connected in bend loss
706 bottommost, because waste liquid discharge pipe connecting portion is in the bottommost of black formula viscosity tube, therefore it will not make to the normal of pipe
With causing exception, and because tube bottom can all be concentrated on by testing or clean remained liquid, sewer pipe is from bottom
Export, this special structure liquid of being more convenient for focus on, the basic noresidue dead angle of discharge process.
The present invention also provides a kind of method of testing of described new automatic kinematic viscosity tester, the test side
Method comprises the following steps：
1) step：Vavuum pump is set at the mouth of pipe of supervisor 71 of four branch road Ubbelohde pipes 7, vavuum pump is opened in test process
By the test solution stored in bubble 705 by being extracted on capillary tube segment 704 in measurement bubble 703.
2) step：After upper drawing liquid face reaches the position of the test scale mark on 703 tops of measurement bubble, upper level detection
Device 9 starts to detect liquid level and liquid level information is transferred into controller 18.When liquid level reaches the expansion of buffering bubble 702
When, controller 18 controls magnetic valve and vavuum pump dead electricity, test solution is flowed downward under gravity.
3) step：Controller 18 is marked with the accuracy of timekeeping record liquid level of 0.01 second by high scale and lower scale mark
Between time difference, and calculate kinematic viscosity value and complete viscosity number result measure.
Upper liquid level sensor 9 uses photoelectric sensor, and controller 18 makes the state continue two seconds, makes on liquid level continues
Certain height is risen, its purpose is to smoothly pass high scale when guarantee liquid level declines in measurement process.Due to liquid level highest
Position reaches measurement bubble and delays kind of an expansion for bubble above, so that it may issuable bubbles burst during being taken out on so that, avoids
The presence of minute bubbles influences the accuracy of level sensing in test solution.On the speed taken out also vacuum available pump is adjusted by steam leak-off valve
Regulating valve adjustment, it is to be monitored by controller by light detecting sensors to be above pumped through journey fluid level condition.Taken out on if with
Preceding smooth check system is abnormal or high scale mark and lower scale mark at existing test solution the working condition for not meeting and taking out be present,
The glazing of touch display screen 21 examines miscue operator, allows to take out on the test solution for storing bubble 705 if light examines state normally.
Test solution has just been begun through on the storage bubble 705 of waste liquid delivery line 74 when taking out, because test solution flow rate is very fast, test solution may on splash
Detected on scale mark by light inspection sensor and be mistakenly considered liquid level signal, therefore beginning a period of time, controller are taken out on test solution
And pay no attention to the state of daylighting inspection sensor, but begin through light inspection after that period of time and pass device monitoring liquid level.
4) step：The test solution tested enters waste liquid delivery line 74 by the bottommost of bend loss 706, and is led by waste liquid
Outlet pipe 74 is drawn into waste liquid caching box 16, turns off aspiration pump 13, and test solution is pushed out into outside waste liquid barrel 17.
5) step：Cleaning agent in A units or unit B is first extracted into 30ml cleaning fluid caching bubble 15, closing is taken out
Air pump 13, cleaning fluid is slowly pushed into supervisor 71, side pipe 72 and the branch pipe 73 of four branch road Ubbelohde pipes 7 by magnetic valve, and by
Waste liquid delivery line 74 is drawn into waste liquid caching box 16, turns off aspiration pump 13, and test solution is pushed out into outside waste liquid barrel 17.
When being cleaned with cleaning fluid to four branch road Ubbelohde pipes 7, cleaning fluid is first extracted into washing lotion caching bubble 15, cleaning fluid
The centre of caching bubble 15 is mounted with liquid level sensor, and the liquid level of liquid level sensor detection cleaning fluid simultaneously transmits liquid level information
To controller 18, when cleaning fluid enters the half position of cleaning fluid caching bubble 15, the control of controller 18 stops drawing liquid, with control
Liquid inlet volume.Entering the control of cleaning fluid dosage every time will greatly reduce in 15ml or so, cleaning fluid dosage.
The black formula capillary of standard is made up of three branch pipes, for the ease of cleaning, our capillary glass tubies to standard
Transformed, connect out a tiny waste liquid delivery line 74 in its bottom, the test solution tested during cleaning first exports from waste liquid
The lower curtate of pipe 74 is extracted into waste liquid caching box 16, turns off aspiration pump 13, and test solution is released into instrument from waste liquid caching box 16, is formed
Go out liquid discharge internal circulation system；Then open into fluid circulation and a certain amount of cleaning agent is pushed into four from each air inlet pipe successively
In the supervisor 71 of road Ubbelohde pipe 7, side pipe 72 and branch pipe 73, mode is discharged by cleaning agent from four branch road Ubbelohde pipes 7 by test solution afterwards
It is discharged to outside instrument；Cleaning fluid caching bubble 15 is connected by airway tube with four branch road Ubbelohde pipes 7, is gone out in four branch road Ubbelohde pipes 7
Junction at mouthful with the airway tube uses spraying head type structure, to ensure cleaning fluid uniformly along supervisor 71, the and of side pipe 72
Branch pipe 73 slowly flows down.Cleaning supervisor 71, side pipe 72 and the inwall of branch pipe 73 can so be played a part of well, using which
Only needing 50ml or so cleaning fluid just can thoroughly clean up the inwall for being responsible for 71, side pipe 72 and branch pipe 73.Whole process liquid
Body all flows in a direction, avoids and rinses pollution problem repeatedly back and forth；Simultaneously as employing inner loop mode, waste liquid is every
It is secondary to be all directly discharged to by waste liquid caching box 16 outside instrument, the bulky devil liquor recovery bottle in place to go, coordinate small-sized gas
Pump (substituting existing oil pump) will be so that equipment instrument greatly reduces.
For the present invention in cleaning process, test solution is extracted into waste liquid buffer pocket from the bottom of waste liquid delivery line, turns off bleeding point,
Liquid is released outside instrument to outside waste liquid barrel from waste liquid buffer pocket, to form out liquid discharge internal circulation system, then open into
A certain amount of cleaning fluid is pushed into supervisor, side pipe, branch pipe by fluid circulation from each air inlet pipe successively, discharges mode by test solution afterwards
Cleaning agent is discharged to outside instrument from four branch road Ubbelohde pipes, whole process liquid all flows in a direction, avoids back and forth
Rinse pollution problem repeatedly；Simultaneously as employing inner loop mode, waste liquid is directly discharged to by waste liquid buffer pocket every time
Outside instrument, the bulky devil liquor recovery bottle in place to go, coordinate small air pump equipment instrument will be greatly reduced, will be each
Entering the control of cleaning fluid dosage will greatly reduce in 15ml or so, cleaning fluid dosage.
6) step：The pre-stage air inlet valve of waste liquid caching box 16 is opened, is closed wantonly two in supervisor 71, side pipe 72 and branch pipe 73
The air intake control valve of individual pipe；Start aspiration pump 13 and negative pressure is taken out to waste liquid caching box 16, air-flow is entered simultaneously from the pipe of opening
Export from waste liquid delivery line 74, be then sucked into by waste liquid caching box 16 outside instrument.
7) step：During being arranged outside air-flow, the residual liquid in pipe is retained down by waste liquid caching box 16, pause 3-
After 5S, start the rear class magnetic valve of blower pump 12 and waste liquid caching box 16, the liquid for making to remain in waste liquid caching box 16 is pushed away
Go out to outside waste liquid barrel 17；
8) step：Aforesaid operations are repeated, so that air-flow passes sequentially through supervisor 71, side pipe 72 and branch pipe 73, are completed to four
The first drying circulation of branch road Ubbelohde pipe 7；By the drying cycle of 3-5 times, four branch road Ubbelohde pipes 7 are dry by thorough roars of laughter.
Fig. 3 is refer to, specifically, first opens the pre-stage air inlet valve of waste liquid caching box 16 first (in figure above caching box
Magnetic valve), the air intake control valve (side pipe and the magnetic valve of supervisor in figure) closed on side pipe 72 and supervisor 71, start aspiration pump 13
Negative pressure is taken out to waste liquid caching box 16, powerful air-flow enters from branch pipe 73, exports that (i.e. branch pipe side is entered in figure from waste liquid delivery line 74
Enter, outlet side output), it is sucked into by waste liquid caching box 16 outside instrument, the residual liquid in pipe is by waste liquid caching box 16
It is retained down, after pause 3-5S, the rear class magnetic valve of startup blower pump 12 and waste liquid caching box 16 (with outside give up in figure by caching box
Magnetic valve between liquid bucket), the liquid remained in waste liquid caching box 16 is pushed out into outside instrument；After pause 3-5S, open
The pre-stage air inlet valve of waste liquid caching box 16, the air intake control valve closed on side pipe 72 and branch pipe 73, start aspiration pump 13 to waste liquid
Caching box 16 takes out negative pressure, and powerful air-flow enters from supervisor 71, exports from waste liquid delivery line 74, taken out by waste liquid caching box 16
It is drawn onto outside instrument, the residual liquid in pipe is retained down by waste liquid caching box 16, after pause 3-5S, is started blower pump 12 and is given up
The rear class magnetic valve of liquid caching box 16, the liquid remained in waste liquid caching box 16 are pushed out into outside instrument；After pause 3-5S,
The pre-stage air inlet valve of waste liquid caching box 16 is finally opened, the air intake control valve closed on branch pipe 73 and supervisor 71, starts aspiration pump
13 pairs of waste liquid caching box 16 take out negative pressure, and powerful air-flow enters from side pipe 72, exports from waste liquid delivery line 74, is cached by waste liquid
Box 16 is sucked into outside instrument, and the residual liquid in pipe is retained down by waste liquid caching box 16, after pause 3-5S, is started and is blown
The rear class magnetic valve of pump 12 and waste liquid caching box 16, the liquid remained in waste liquid caching box 16 are pushed out into outside instrument.
It is to be understood that foregoing invention content and embodiment are intended to prove technical scheme provided by the present invention
Practical application, it should not be construed as limiting the scope of the present invention.Those skilled in the art are in spirit and principles of the present invention
It is interior, when can various modifications may be made, equivalent substitution or improvement.Protection scope of the present invention is defined by appended claims.
Claims (8)
- A kind of 1. new automatic kinematic viscosity tester, it is characterised in that the new automatic kinematic viscosity tester Device includes temperature control system, measuring system, gas circuit unit and control system；Wherein,The temperature control system include Dewar bottle (1), thermostatic medium (2), temperature sensor (3), superposition type compression refigerating machine (4), Heating tube (5), solid-state voltage regulator (6), stirring system and cooling fan；Wherein, it is contained with thermostatic medium inside Dewar bottle (1) (2), superposition type compression refigerating machine (4) freezes to thermostatic medium (2), to reach the low temperature requirements of constant temperature bath, heating tube (5) Pulsed heating is carried out to thermostatic medium (2), with the temperature of regulating thermostatic medium, and the inline solid state pressure regulation in heating tube (5) Device (6) carries out partial pressure, and temperature sensor (3) monitors the temperature of thermostatic medium (2) in real time, and stirring system and cooling fan auxiliary are adjusted Save the temperature of thermostatic medium (2)；The measuring system includes four branch road Ubbelohde pipes (7), black formula capillary clamp (8), upper liquid level sensor (9), lower liquid Face detection means (10) and optical fiber/photoelectricity fixing device (11)；Wherein, four branch road Ubbelohde pipes (7) are arranged on closed Dewar bottle (1) it is fixed in and by black formula capillary clamp (8), optical fiber/photoelectricity fixing device (11) is by upper liquid level sensor (9) It is sequentially fixed at lower liquid level sensor (10) at high scale mark corresponding to four branch road Ubbelohde pipes (7) and lower scale mark；The gas circuit unit includes blower pump (12), aspiration pump (13), two-way cleaning fluid (14), cleaning fluid caching and steeps (15), gives up Liquid caching box (16), outside waste liquid barrel (17) and some magnetic valves；Wherein, the two-way cleaning fluid (14) of A units and unit B composition Bubble (15) is cached by magnetic valve and cleaning fluid respectively be connected, cleaning fluid caching steep (15) by magnetic valve respectively with blower pump (12), aspiration pump (13) and the connection of four branch road Ubbelohde pipes (7), blower pump (12), aspiration pump (13) and four branch road Ubbelohde pipes (7) point It is not connected by magnetic valve with waste liquid caching box (16), waste liquid caching box (16) is connected by magnetic valve and outside waste liquid barrel (17) Connect；The control system includes controller (18), 12V/24V modular power sources (19), 220V AC powers (20), touch display Shield (21) and printer (22)；Wherein, controller (18) includes master control control panel and industrial control board, and master control control panel passes according to temperature Thermostatic medium (2) temperature control superposition type compression refigerating machine (4), heating tube (5) and the solid-state voltage regulator that sensor monitors in real time (6)；220V AC powers (20) are that heating tube (5) and solid-state voltage regulator (6) are powered；Upper liquid level sensor (9) and lower liquid level Detection means (10) feeds back detection information to master control control panel；12V/24V modular power sources (19) are industrial control board and some magnetic valves Operating voltage is provided, industrial control board is connected with touch display screen (21) and printer (22) respectively.
- 2. new automatic kinematic viscosity tester as claimed in claim 1, it is characterised in that four branch road Ubbelohde pipes (7) Including supervisor (71), side pipe (72), branch pipe (73) and waste liquid delivery line (74), supervisor (71) include being located at same axis from upper and Under be sequentially connected straight length (701), buffering bubble (702), measurement bubble (703), capillary tube segment (704), storage bubble it is (705) and curved Pipeline section (706), bend loss (706) are connected with branch pipe (73), and side pipe (72) is connected with storage bubble (705)；Waste liquid delivery line (74) bottommost of the connection in bend loss (706).
- 3. new automatic kinematic viscosity tester as claimed in claim 1, it is characterised in that upper liquid level sensor (9) and lower liquid level sensor (10) uses fiber optic detection system or photodetector system, fiber optic detection system be used for -40 DEG C - The sample detection of+120 DEG C of scopes, photodetector system are used for the sample detection of -70 DEG C -+120 DEG C scopes.
- 4. new automatic kinematic viscosity tester as claimed in claim 1, it is characterised in that upper liquid level sensor (9) and lower liquid level sensor (10) is a pair of correlation type optical fiber, and two pairs of correlation type optical fiber are arranged on measurement bubble (113) both sides And high scale mark and lower scale mark are respectively aligned to, every a pair of correlation types fiber-coaxial and vertical with capillary tube segment (114).
- 5. new automatic kinematic viscosity tester as claimed in claim 4, it is characterised in that in the correlation type optical fiber A diameter of 0.5mm.
- 6. a kind of method of testing of new automatic kinematic viscosity tester as described in claim 1-5 is any, its feature It is, the method for testing comprises the following steps：Step 1)：Vavuum pump is set at supervisor (71) mouth of pipe of four branch road Ubbelohde pipes (7), and vavuum pump is opened in test process will Test solution in storage bubble (705) on capillary tube segment (704) by being extracted into measurement bubble (703)；Step 2)：After upper drawing liquid face reaches the position of the test scale mark on measurement bubble (703) top, upper liquid level sensor (9) start to detect liquid level and liquid level information is transferred to controller (18)；When liquid level reaches the enlarged portion of buffering bubble (702) Timesharing, controller (18) control magnetic valve and vavuum pump dead electricity, make test solution flow downward under gravity；Step 3)：Controller (18) is marked between lower scale mark with the accuracy of timekeeping record liquid level of 0.01 second by high scale Time difference, and calculate kinematic viscosity value and complete a viscosity number result measure；Step 4)：The test solution tested enters waste liquid delivery line (74) by the bottommost of bend loss (706), in the work of magnetic valve It is drawn into lower waste liquid by waste liquid delivery line (74) in waste liquid caching box (16), then closes aspiration pump (13), waste liquid is pushed out to outer Portion's waste liquid barrel (17)；Step 5)：Cleaning agent in A units or unit B is first extracted into 30ml cleaning fluid caching bubble (15), closes aspiration pump (13), cleaning fluid is slowly pushed into supervisor (71), side pipe (72) and the branch pipe (73) of four branch road Ubbelohde pipes (7) by magnetic valve In, and be drawn into by waste liquid delivery line (74) in waste liquid caching box (16), aspiration pump (13) is turned off, test solution is pushed out to outside Waste liquid barrel (17)；Step 6)：The pre-stage air inlet valve of waste liquid caching box (16) is opened, closes in supervisor (71), side pipe (72) and branch pipe (73) and appoints The air intake control valve of two pipes；Start aspiration pump (13) and negative pressure is taken out to waste liquid caching box (16), make pipe of the air-flow from opening Into and from waste liquid delivery line (74) output, then it is sucked into by waste liquid caching box (16) outside instrument；Step 7)：During being arranged outside air-flow, the residual liquid in pipe is retained down by waste liquid caching box (16), pause 3-5S Afterwards, start the rear class magnetic valve of blower pump (12) and waste liquid caching box (16), make the liquid remained in waste liquid caching box (16) It is pushed out into outside waste liquid barrel (17)；Step 8)：Aforesaid operations are repeated, so that air-flow passes sequentially through supervisor (71), side pipe (72) and branch pipe (73), are completed to four The first drying circulation of branch road Ubbelohde pipe (7)；By the drying cycle of 3-5 times, four branch road Ubbelohde pipes (7) are dry by thorough roars of laughter.
- 7. method of testing as claimed in claim 6, it is characterised in that the centre of cleaning fluid caching bubble (15) is mounted with that liquid level is examined Device is surveyed, liquid level information is simultaneously transferred to controller (18) by the liquid level of liquid level sensor detection cleaning fluid, when cleaning fluid enters During the half position of cleaning fluid caching bubble (15), controller (18) control stops drawing liquid, to control liquid inlet volume.
- 8. method of testing as claimed in claim 6, it is characterised in that cleaning fluid caching bubble (15) passes through airway tube and four branch roads Ubbelohde pipe (7) connects, and spraying head type structure is used in four branch road Ubbelohde pipe (7) exits and the junction of the airway tube, with true Cleaning fluid is protected uniformly slowly to flow down along supervisor (71), side pipe (72) and branch pipe (73).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711007550.6A CN107589048A (en) | 2017-10-25 | 2017-10-25 | A kind of new automatic kinematic viscosity tester and its method of testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711007550.6A CN107589048A (en) | 2017-10-25 | 2017-10-25 | A kind of new automatic kinematic viscosity tester and its method of testing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107589048A true CN107589048A (en) | 2018-01-16 |
Family
ID=61043348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711007550.6A Pending CN107589048A (en) | 2017-10-25 | 2017-10-25 | A kind of new automatic kinematic viscosity tester and its method of testing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107589048A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107271330A (en) * | 2017-06-20 | 2017-10-20 | 湖北新华光信息材料有限公司 | A kind of glass high temperature viscosity test device and its method of testing |
| CN108645753A (en) * | 2018-06-23 | 2018-10-12 | 华电电力科学研究院有限公司 | A kind of device and assay method that power equipment is automatically measured with oily kinematic viscosity and viscosity index (VI) |
| CN109916773A (en) * | 2019-04-10 | 2019-06-21 | 李尚松 | A kind of high polymer viscosity average molecular weight determination instrument and its application method |
| CN113188954A (en) * | 2021-04-28 | 2021-07-30 | 北京理工大学 | Automatic device for measuring viscosity of nitrocotton |
| CN114459955A (en) * | 2022-03-01 | 2022-05-10 | 天津大学 | Liquid field kinematic viscosity coefficient measuring method based on bubble elastic characteristics |
| CN115254813A (en) * | 2022-03-09 | 2022-11-01 | 重庆市妇幼保健院(重庆市妇产科医院、重庆市遗传与生殖研究所) | Full-automatic pipeline cleaner |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201803923U (en) * | 2010-09-03 | 2011-04-20 | 洪泉益 | Multi-path full-automatic inherent viscosity tester |
| CN201803922U (en) * | 2010-09-03 | 2011-04-20 | 洪杰辉 | Kinematic viscosity tester with automatic cleaning function |
| CN202025009U (en) * | 2011-03-30 | 2011-11-02 | 泉州市全通光电科技有限公司 | Automatic continuous viscosity tester |
| CN202092927U (en) * | 2011-05-26 | 2011-12-28 | 山东惠工电气股份有限公司 | Automatic kinematic viscosity tester |
| CN203598842U (en) * | 2013-12-03 | 2014-05-21 | 安徽理工大学 | Novel Ubbelohde viscometer thermostat |
| CN204330527U (en) * | 2014-12-25 | 2015-05-13 | 郑州正佳能源环保科技有限公司 | There is auxiliary heating, be convenient to the capillary viscosimeter of cleaning |
| CN204346859U (en) * | 2015-01-14 | 2015-05-20 | 汪赞宇 | Novel viscosity tube |
| CN106198313A (en) * | 2016-08-29 | 2016-12-07 | 杭州卓祥科技有限公司 | A kind of W type crow formula viscosity pipet |
-
2017
- 2017-10-25 CN CN201711007550.6A patent/CN107589048A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201803923U (en) * | 2010-09-03 | 2011-04-20 | 洪泉益 | Multi-path full-automatic inherent viscosity tester |
| CN201803922U (en) * | 2010-09-03 | 2011-04-20 | 洪杰辉 | Kinematic viscosity tester with automatic cleaning function |
| CN202025009U (en) * | 2011-03-30 | 2011-11-02 | 泉州市全通光电科技有限公司 | Automatic continuous viscosity tester |
| CN202092927U (en) * | 2011-05-26 | 2011-12-28 | 山东惠工电气股份有限公司 | Automatic kinematic viscosity tester |
| CN203598842U (en) * | 2013-12-03 | 2014-05-21 | 安徽理工大学 | Novel Ubbelohde viscometer thermostat |
| CN204330527U (en) * | 2014-12-25 | 2015-05-13 | 郑州正佳能源环保科技有限公司 | There is auxiliary heating, be convenient to the capillary viscosimeter of cleaning |
| CN204346859U (en) * | 2015-01-14 | 2015-05-20 | 汪赞宇 | Novel viscosity tube |
| CN106198313A (en) * | 2016-08-29 | 2016-12-07 | 杭州卓祥科技有限公司 | A kind of W type crow formula viscosity pipet |
Non-Patent Citations (1)
| Title |
|---|
| 肖成祖: "《细胞制药与尿激酶原》", 中国武汉化工工程公司教育, pages: 98099 - 254 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107271330A (en) * | 2017-06-20 | 2017-10-20 | 湖北新华光信息材料有限公司 | A kind of glass high temperature viscosity test device and its method of testing |
| CN108645753A (en) * | 2018-06-23 | 2018-10-12 | 华电电力科学研究院有限公司 | A kind of device and assay method that power equipment is automatically measured with oily kinematic viscosity and viscosity index (VI) |
| CN108645753B (en) * | 2018-06-23 | 2024-03-22 | 华电电力科学研究院有限公司 | Device and method for fully automatically measuring kinematic viscosity and viscosity index of oil for power equipment |
| CN109916773A (en) * | 2019-04-10 | 2019-06-21 | 李尚松 | A kind of high polymer viscosity average molecular weight determination instrument and its application method |
| CN113188954A (en) * | 2021-04-28 | 2021-07-30 | 北京理工大学 | Automatic device for measuring viscosity of nitrocotton |
| CN114459955A (en) * | 2022-03-01 | 2022-05-10 | 天津大学 | Liquid field kinematic viscosity coefficient measuring method based on bubble elastic characteristics |
| CN114459955B (en) * | 2022-03-01 | 2023-09-15 | 天津大学 | Liquid field kinematic viscosity coefficient measurement method based on bubble elasticity characteristics |
| CN115254813A (en) * | 2022-03-09 | 2022-11-01 | 重庆市妇幼保健院(重庆市妇产科医院、重庆市遗传与生殖研究所) | Full-automatic pipeline cleaner |
| CN115254813B (en) * | 2022-03-09 | 2023-04-25 | 重庆市妇幼保健院(重庆市妇产科医院、重庆市遗传与生殖研究所) | Full-automatic pipeline cleaner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107589048A (en) | A kind of new automatic kinematic viscosity tester and its method of testing | |
| CN205384207U (en) | High sensitivity particulate matter laser monitor based on dilution method | |
| CN102879278A (en) | High-low temperature dynamic cold-hot circulation thermodynamic test system | |
| CN101251430A (en) | Method and system for detecting and locating leakage based on infrared imagery technique | |
| CN204143285U (en) | Temperature/humidity verification box | |
| CN104913886B (en) | Method for leakage detection of Freon valve | |
| CN110030595A (en) | A kind of oil smoke detection device, smoke exhaust ventilator and its control method | |
| CN109405179A (en) | The control method of air-conditioning system and air-conditioning system | |
| CN107504619A (en) | A kind of computer room temperature control method and system based on distributed optical fiber temperature measuring | |
| CN207703669U (en) | A kind of new automatic kinematic viscosity test equipment | |
| CN110940043B (en) | Air conditioner refrigerant leakage detection method and air conditioner | |
| JP3230553U (en) | Intermittent sulfur trioxide online measuring device | |
| CN112683604B (en) | Constant-speed sampling device for pressure measurement method | |
| KR100918193B1 (en) | An apparatus for testing reffrigerant leakage | |
| CN206095947U (en) | Inductively coupled plasma emmission spectrum appearance | |
| CN107643416A (en) | A kind of new automatic condensation point tester and its method of testing | |
| CN201803923U (en) | Multi-path full-automatic inherent viscosity tester | |
| CN104950130A (en) | Flow speed testing instrument for medical catheter | |
| CN206291564U (en) | Leakage inspector and the cooling-water machine with it | |
| CN205580574U (en) | Examine and determine pVTt method gas flow standard device fast | |
| CN101556254B (en) | Multi-unit patrol inspection fully-automatic analysis method | |
| CN208090655U (en) | A kind of boiler blow-off automatic control system | |
| CN209247781U (en) | A kind of portable gas detection device tube cleaning arrangement | |
| CN209559896U (en) | A kind of Enzyme-linked washing-board sample-adding all-in-one machine | |
| CN209167082U (en) | A kind of skylight guide rail salt fog detection instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |