CN205192521U - Oil appearance viscosity and velocity of flow detection device - Google Patents
Oil appearance viscosity and velocity of flow detection device Download PDFInfo
- Publication number
- CN205192521U CN205192521U CN201520841736.1U CN201520841736U CN205192521U CN 205192521 U CN205192521 U CN 205192521U CN 201520841736 U CN201520841736 U CN 201520841736U CN 205192521 U CN205192521 U CN 205192521U
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- ntc thermistor
- glass capillary
- heating bath
- bath container
- resistance
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Abstract
The utility model discloses an oil appearance viscosity and velocity of flow detection device high temperature resistant and precision is high, there is heating bath container (1), glass capillary (2) that have vertical setting at heating bath container (1) internal fixation, vertical correspondence is equipped with two through -hole (3) about the pipe wall of glass capillary (2), seal up respectively in two through -hole (3) and inlay resistance the same last NTC thermistor (4) and lower NTC thermistor (5), go up NTC thermistor (4) and NTC thermistor (5) response end down preceding with glass capillary (2) inner wall between apart from the equal 0.5mm that just is less than, still be equipped with reference resistance (6) that equal with last NTC thermistor (4) and lower NTC thermistor (5) resistance in heating bath container (1), go up NTC thermistor (4), the output of NTC thermistor (5) and reference resistance (6) meets with detection circuitry down.
Description
Technical field
The utility model relates to a kind of oil sample pick-up unit, especially a kind of high temperature resistant and the oil sample viscosity that precision is high and flow monitor.
Background technology
Viscosity, flow velocity etc. are the important indicators weighing the oil qualities such as oil.At present, be provided with to realize the heating bath such as water-bath, oil bath container for oil product viscosity, flow monitor, have the glass capillary vertically arranged at heating bath container internal fixtion, the AB 2 of the upper and lower line correspondences of glass capillary is provided with optical detection device.When tested oil sample flows through glass capillary under gravity, set optical detection device can determine oil sample and flow through time t between AB 2, because the distance S of AB 2 fixes, then calculates the flow velocity of oil sample by S/t.Because the flowing of oil sample in glass capillary is laminar flow, therefore oil sample flow rate is mm2/s, and then can calculate its viscosity.But normal light electrical detecting element is more than 80 DEG C during temperature, and its reliability is just affected, and is difficult to the accuracy ensureing to detect.
Summary of the invention
The utility model is the above-mentioned technical matters in order to solve existing for prior art, provides a kind of high temperature resistant and the oil sample viscosity that precision is high and flow monitor.
Technical solution of the present utility model is: a kind of oil sample viscosity and flow monitor, there is heating bath container, the glass capillary vertically arranged is had at heating bath container internal fixtion, glass capillary tube wall up and down vertically correspondence be provided with two through holes, in two through holes, sealing is embedded with the identical upper NTC thermistor of resistance and lower NTC thermistor respectively, equal with the spacing of glass capillary inwall and be less than 0.5mm before upper NTC thermistor and lower NTC thermistor induction end, the reference resistor equal with lower NTC thermistor resistance with upper NTC thermistor is also provided with in heating bath container, upper NTC thermistor, the output terminal of lower NTC thermistor and reference resistor connects with testing circuit.
The utility model is using NTC thermistor as detecting element, be embedded in the tube wall of glass capillary, NTC thermistor induction end protrudes from glass capillary inwall and is less than 0.5mm, namely oil sample actual flow velocity is not affected, the time flowing through glass capillary measurement point is measured again by measuring sensor, accurately can detect that oil sample flows through flow velocity and the oil sample viscosity of glass capillary oil sample under gravity, there is high temperature resistant and that precision is high advantage.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the transverse sectional view of the utility model embodiment glass capillary.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described.As shown in Figure 1, 2: have heating bath container 1 same as the prior art, as oil bath container.Upper fixed seat 7 and lower fixed seat 8 is had in heating bath container 1, the two ends up and down of glass capillary 2 are vertically fixed on upper fixed seat 7 and lower fixed seat 8, at glass capillary) tube wall up and down vertically correspondence be provided with two through holes 3, the identical upper NTC thermistor 4 of resistance and lower NTC thermistor 5 is embedded with high-temperature seal adhesive fixing seal respectively in two through holes 3, equal with the spacing of glass capillary 2 inwall and be less than 0.5mm before upper NTC thermistor 4 and lower NTC thermistor 5 induction end, the reference resistor 6 equal with lower NTC thermistor 5 resistance with upper NTC thermistor 4 is also provided with in heating bath container 1, upper NTC thermistor 4, the upper end of lower NTC thermistor 5 and reference resistor 6 is all fixed on upper fixed seat 7, output terminal connects with testing circuit.Upper NTC thermistor 4, lower NTC thermistor 5 and reference resistor 6 all adopt diameter 0.3mm, pearl glass-encapsulated NTC resistance.Testing circuit adopts PLC control unit, carries out the detection control of state, sequential.
Principle of work:
Due in heating bath container, then temperature is inconsistent whether oil sample temperature in glass capillary, and old friend is the dissipated power of adjustment NTC thermistor, and make at certain temperature spot, the dissipated power in gas phase is close to the maximum permission dissipated power of itself.When there being oil product submergence NTC thermistor, the self heat that its dissipated power causes can evaporate oil product, thus causes the change of resistance, i.e. the change of temperature.Like this, when tested oil sample flows through upper NTC thermistor 4 and lower NTC thermistor 5 under gravity, testing circuit will detect the resistance different from reference resistor 6, and calculates for two different resistance interval times, thus calculates flow velocity and the viscosity of oil sample.Highest detection temperature can reach 110 DEG C, and temperature measurement accuracy reaches as high as ± and 0.1 DEG C.
Claims (1)
1. an oil sample viscosity and flow monitor, there is heating bath container (1), the glass capillary (2) vertically arranged is had at heating bath container (1) internal fixtion, it is characterized in that: glass capillary (2) tube wall up and down vertically correspondence be provided with two through holes (3), in two through holes (3), sealing is embedded with the identical upper NTC thermistor (4) of resistance and lower NTC thermistor (5) respectively, equal with the spacing of glass capillary (2) inwall and be less than 0.5mm before upper NTC thermistor (4) and lower NTC thermistor (5) induction end, the reference resistor (6) equal with lower NTC thermistor (5) resistance with upper NTC thermistor (4) is also provided with in heating bath container (1), upper NTC thermistor (4), the output terminal of lower NTC thermistor (5) and reference resistor (6) connects with testing circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520841736.1U CN205192521U (en) | 2015-10-28 | 2015-10-28 | Oil appearance viscosity and velocity of flow detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520841736.1U CN205192521U (en) | 2015-10-28 | 2015-10-28 | Oil appearance viscosity and velocity of flow detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205192521U true CN205192521U (en) | 2016-04-27 |
Family
ID=55785500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520841736.1U Active CN205192521U (en) | 2015-10-28 | 2015-10-28 | Oil appearance viscosity and velocity of flow detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205192521U (en) |
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2015
- 2015-10-28 CN CN201520841736.1U patent/CN205192521U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |