CN201955286U - Multi-tube type capillary rheometer - Google Patents
Multi-tube type capillary rheometer Download PDFInfo
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- CN201955286U CN201955286U CN2011200168803U CN201120016880U CN201955286U CN 201955286 U CN201955286 U CN 201955286U CN 2011200168803 U CN2011200168803 U CN 2011200168803U CN 201120016880 U CN201120016880 U CN 201120016880U CN 201955286 U CN201955286 U CN 201955286U
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- capillary rheometer
- metal hose
- gear pump
- kapillary
- tube type
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Abstract
The utility model provides a multi-tube type capillary rheometer comprising a production line storage tank. The production line storage tank is connected with one end of a metal hose which is provided with a pneumatic ball valve; the other end of the metal hose is connected with a metering gear pump which is connected with a motor; the motor is connected with a frequency converter; the metering gear pump is provided with a plurality of outlets which are respectively connected with the metal hose; the metal hose is connected with capillaries with different length-diameter ratios; the capillaries are provided with a pressure sensor; and the pressure sensor and the frequency converter are respectively connected with a computer. The multi-tube type capillary rheometer has the following beneficial effects: the multi-tube type capillary rheometer adopts a group of capillaries with different length-diameter ratios and the gear pump with the plurality of outlets, a test can be conducted on line or off line simultaneously, and the fluctuation condition of the rheological property of the rheometer can be tracked on line, therefore, the multi-tube type capillary rheometer is beneficial to the control of production process and the stability of product quality. In addition, the multi-tube capillary rheometer is convenient for sampling and can be cleaned and maintained by adopting the process of cleaning the gear pump in the production process of an enterprise, thus being easy to clean and has a low maintenance cost.
Description
Technical field:
The utility model relates to a kind of multitube capillary rheometer that is used to test superpolymer strong solution rheological property and viscous-elastic behaviour.
Background technology:
Capillary rheometer is one of ripe, the most most widely used flow measurement instrument of development at present.Advantage is simple to operate, and measurement range is wide.In the kapillary material flow with process in the form of Flow of Goods and Materials similar, it can not only measure the shear viscosity of material, can also the elastic behavior of material be discussed by the research to the behavior of extruding.The vapour-pressure type capillary rheometer that present testing laboratory adopts usually is slowly to extrude kapillary by the pressure promotion superpolymer fluid of nitrogen steel cylinder, and pressure is regulated complexity in process of the test, easily fluctuation, and the test specification of shear rate is also less.Another kind of pressure lever type capillary rheometer promotes the superpolymer fluid by the Mechanical Driven piston rod and extrudes kapillary, piston with easily leak with charging basket sealing place superpolymer fluid, often cause kapillary discharging inequality, influence the precision of test result.And the cleaning difficulty is big, maintenance cost is high.More than two kinds of capillary rheometers all can not carry out the on-line testing of material rheological property.
The utility model content:
The purpose of this utility model is, cleaning difficulty big, maintenance cost high shortcoming less for the test specification that overcomes the complexity of capillary rheometer pressure adjusting in the past, easy fluctuation, shear rate, so a kind of multitube capillary rheometer is provided.
Solution of the present utility model is:
A kind of multitube capillary rheometer comprises the production line storage tank, and the production line storage tank connects metal hose one end, and metal hose is provided with pneumatic ball valve, and the metal hose other end connects the measurement gear pump, and the measurement gear pump is connected with motor, and motor is connected with frequency converter; The measurement gear pump is provided with a plurality of outlets, and outlet connects metal hose respectively, and metal hose connects the kapillary of different length-diameter ratios, and pressure transducer is installed on the kapillary; Pressure transducer, frequency converter are connected with computing machine respectively.
Preferably, described radical capillaceous is 1～8.
Preferably, described kapillary major diameter ratio is 2～40.
Preferably, described capillary diameter is 0.25～2mm.
Preferably, described production line storage tank, metal hose, pneumatic ball valve, measurement gear pump, kapillary, pressure transducer are installed in the temperature-controlled cabinet.
The beneficial effects of the utility model are, this device adopts the kapillary and the multiple exit gear-type pump of one group of different length-diameter ratio, when capillary rheometer directly inserts superpolymer strong solution induction system, online or off-line test simultaneously, the fluctuation situation of its rheological property of on-line tracing helps the control of production run and stablizing of product quality.And capillary rheometer sampling is convenient, can adopt enterprise production process middle gear pump matting can carry out the cleaning and the maintenance of instrument, so the utility model easy cleaning, maintenance cost are low.
Description of drawings:
Fig. 1 is the structural representation of multitube capillary rheometer of the present utility model.
Among the figure: 1-production line storage tank, 2-metal hose, 3-pneumatic ball valve, 4-measurement gear pump, 5-frequency converter, 6-pressure transducer, 7-kapillary, 8-motor, 9-temperature-controlled cabinet, 10-computing machine.
Embodiment:
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
As shown in the figure, a kind of multitube capillary rheometer, comprise temperature-controlled cabinet 9, production line storage tank 1 is arranged in the temperature-controlled cabinet 9, production line storage tank 1 connects metal hose 2 one ends, and metal hose 2 is provided with pneumatic ball valve 3, and metal hose 2 other ends connect measurement gear pump 4, measurement gear pump 4 is connected with temperature-controlled cabinet 9 motor 8 outward, and motor 8 is connected with frequency converter 5; Measurement gear pump 4 is provided with three outlets, and outlet connects metal hose 2 respectively, and metal hose 2 connects the kapillary 7 of different length-diameter ratios, and pressure transducer 6 is installed on the kapillary 7; Pressure transducer 6, frequency converter 5 are connected with computing machine 10 respectively.
The concrete course of work of multitube capillary rheometer of the present utility model is as follows:
At first, superpolymer strong solution such as spinning solution in the production line storage tank 1, by the metal hose 2 that pneumatic ball valve 3 is installed, enter the measurement gear pump 4 of frequency converter 5 controls, according to test request, can set measurement gear pump 4 different rotating speeds by frequency converter 5, the superpolymer strong solution is by the 4 outlet outputs of measurement gear pump, metal hose 2 by separately, be delivered to the kapillary 7 of different size respectively, the high-precision pressure sensor 6 that is installed in the band digital display on the kapillary 7 records data transmission and carries out D/A switch for computing machine 10, and the formula that data processing adopts is as follows:
(1) shear rate:
In the formula: Q is the volumetric flow rate of fluid, can be by 4 controls of measurement gear pump; R is kapillary 7 radiuses.
(2) shear stress:
In the formula: be actual measurement pressure reduction; R is kapillary 7 radiuses; L is kapillary 7 length.
(3) non-newtonian index
(4) apparent shear viscosity
(5) Bei Gelai proofreaies and correct
In the formula: be actual measurement pressure reduction; R is kapillary 7 radiuses; L is kapillary 7 length; E is the Bei Gelai correction coefficient.
Specific embodiment described herein only is that the utility model is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (5)
1. a multitube capillary rheometer comprises the production line storage tank, and the production line storage tank connects metal hose one end, it is characterized in that: metal hose is provided with pneumatic ball valve, the metal hose other end connects the measurement gear pump, and the measurement gear pump is connected with motor, and motor is connected with frequency converter; The measurement gear pump is provided with a plurality of outlets, and outlet connects metal hose respectively, and metal hose connects the kapillary of different length-diameter ratios, and pressure transducer is installed on the kapillary; Pressure transducer, frequency converter are connected with computing machine respectively.
2. according to claims 1 described multitube capillary rheometer, it is characterized in that: described radical capillaceous is 1～8.
3. according to claims 1 described multitube capillary rheometer, it is characterized in that: described kapillary major diameter ratio is 2～40.
4. according to claims 1 described multitube capillary rheometer, it is characterized in that: described capillary diameter is 0.25～2mm.
5. according to claims 1 described multitube capillary rheometer, it is characterized in that: described production line storage tank, metal hose, pneumatic ball valve, measurement gear pump, kapillary, pressure transducer are installed in the temperature-controlled cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200168803U CN201955286U (en) | 2011-01-20 | 2011-01-20 | Multi-tube type capillary rheometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200168803U CN201955286U (en) | 2011-01-20 | 2011-01-20 | Multi-tube type capillary rheometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201955286U true CN201955286U (en) | 2011-08-31 |
Family
ID=44499394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200168803U Expired - Lifetime CN201955286U (en) | 2011-01-20 | 2011-01-20 | Multi-tube type capillary rheometer |
Country Status (1)
| Country | Link |
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| CN (1) | CN201955286U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502230A (en) * | 2012-10-26 | 2015-04-08 | Jri工程公司 | Multi-capillary In-line Rheometer For Mineral Slurries |
| CN107271329A (en) * | 2017-06-07 | 2017-10-20 | 大连北方分析仪器有限公司 | High-temperature high shear viscosity analyzer |
| CN109031941A (en) * | 2018-06-15 | 2018-12-18 | 营口康辉石化有限公司 | Resin viscosity control system and detection method |
| PL423525A1 (en) * | 2017-11-21 | 2019-06-03 | Politechnika Lodzka | Capillary rheometer |
-
2011
- 2011-01-20 CN CN2011200168803U patent/CN201955286U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502230A (en) * | 2012-10-26 | 2015-04-08 | Jri工程公司 | Multi-capillary In-line Rheometer For Mineral Slurries |
| CN107271329A (en) * | 2017-06-07 | 2017-10-20 | 大连北方分析仪器有限公司 | High-temperature high shear viscosity analyzer |
| PL423525A1 (en) * | 2017-11-21 | 2019-06-03 | Politechnika Lodzka | Capillary rheometer |
| PL234174B1 (en) * | 2017-11-21 | 2020-01-31 | Politechnika Lodzka | Capillary rheometer |
| CN109031941A (en) * | 2018-06-15 | 2018-12-18 | 营口康辉石化有限公司 | Resin viscosity control system and detection method |
| CN109031941B (en) * | 2018-06-15 | 2024-07-26 | 康辉新材料科技有限公司 | Resin viscosity control system and detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110831 |