CN111175183A

CN111175183A - High-precision viscosity capillary tube detection device

Info

Publication number: CN111175183A
Application number: CN201911273051.0A
Authority: CN
Inventors: 江湘津; 李祖祥; 谭剑英; 刘成林
Original assignee: Shenzhen Xiangjinshi Instrument Co ltd
Current assignee: Shenzhen Xiangjinshi Instrument Co ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-05-19

Abstract

The invention discloses a high-precision viscosity capillary tube detection device which comprises a refrigeration compressor and a thermostatic chamber, wherein the upper end of the refrigeration compressor is connected with a refrigeration radiator through a pipeline, a heat dissipation fan is arranged at the upper end of the refrigeration radiator, one end of a cold bath main body is respectively connected with a first external circulating pump and a second external circulating pump through pipelines, the first external circulating pump is positioned on one side of the second external circulating pump, the thermostatic chamber is positioned on one side of the refrigeration compressor, a thermostatic bath is arranged in the thermostatic chamber, a camera is arranged in the thermostatic bath, circulating water pipes are arranged at two ends of the thermostatic bath, and a control module is arranged on one side of the thermostatic bath. The invention carries out automatic imbibition by using the low-noise constant-pressure vacuum pump device, can simultaneously provide a stable air source for imbibition of 6 capillary viscosimeters, automatically adjusts the air suction amount, is suitable for the viscosimeter with the inner diameter range of 0.45 mm-6.9 mm, and simultaneously adopts the capillary clamp with adjustable level, so that the capillary clamp is convenient, fast and reliable.

Description

High-precision viscosity capillary tube detection device

Technical Field

The invention relates to the technical field of capillary tube verification, in particular to a high-precision viscosity capillary tube detection device.

Background

The prior viscometer verification and calibration has the constant temperature bath body temperature precision of plus or minus 0.1 ℃ generally and the temperature precision of plus or minus 0.01 ℃ at most. And when the viscometer is used for verification, the liquid level is observed by human eyes, and manual timing is used, so that errors occur during testing along with temperature fluctuation and human errors. By using high-precision constant-temperature bath and automatic image discrimination technology, human errors can be effectively reduced. In the calibration of the standard viscometer, an accurate result is obtained.

Disclosure of Invention

The invention aims to provide a high-precision viscosity capillary detection device, which aims to solve the problems that errors and the like occur in the test along with temperature fluctuation and human errors when a human eye observes the liquid level and uses manual timing during the verification of a viscometer provided in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a high accuracy viscosity capillary detection device, includes compressor and thermostatic chamber, compressor's upper end is connected with the refrigeration radiator through the pipeline, and radiator fan is installed to the upper end of refrigeration radiator, and compressor's the other end passes through the pipeline and is connected with the cold bath bulk phase, and inside constant temperature heat pipe and the refrigeration coil pipe of installing respectively of cold bath main part, the one end of cold bath main part is connected with the outer circulating pump of first outer circulating pump and second respectively through the pipeline, and first outer circulating pump is located one side of the outer circulating pump of second, the thermostatic chamber is located one side of compressor, and the inside constant temperature tank that is provided with of thermostatic chamber, and constant temperature tank internally mounted has the camera, circulating pipe is installed at the constant temperature tank both ends, and one side of constant.

Preferably, the other end of the cold bath main body is connected with a circulating pump in a refrigerating machine through a pipeline.

Preferably, a temperature control module is installed below the thermostatic bath, and a vacuum system is arranged on one side of the temperature control module.

Preferably, a suction module is arranged above the vacuum system.

Preferably, a special computer is installed at one side of the thermostatic chamber.

Preferably, a mute air compressor is installed on one side of the special computer.

Preferably, the cold bath main body is communicated with the refrigeration radiator through a pipeline.

Preferably, the constant temperature heat pipe and the refrigeration coil are connected with the temperature control module through leads.

Compared with the prior art, the invention has the beneficial effects that:

(1) the instrument consists of a special thermostatic chamber, a special refrigeration thermostatic circulation bath, a high-precision thermostatic control part, a host thermostatic bath body internal circulation system, a movable thermostatic chamber thermostatic air conditioner, an automatic liquid absorption module, an external air source, a high-configuration computer and special software, wherein each part is subjected to elaborate design and model selection; the instrument comprises a constant-temperature groove body, wherein water is used as a medium, a special large-flow circulating system temperature control structure is adopted, three surfaces of the groove body are made of transparent toughened glass, a constant-temperature environment is provided for a capillary viscometer, the effective volume of the constant-temperature groove body is more than 60 × 14 × 55(cm, length, width and height), the temperature range is 18-40 ℃, the horizontal temperature field is +/-0.005 ℃, and the vertical temperature field is +/-0.005 ℃;

(2) the instrument adopts a special refrigeration constant-temperature circulating bath and high-precision constant-temperature control part, an imported high-precision temperature control meter PID temperature control part, an imported high-precision glass platinum resistor temperature measurement part, and the instrument has the advantages of stable temperature, long service life, temperature range of 18-40 ℃, and display resolution: 0.001 ℃, temperature control precision: the horizontal temperature field is +/-0.005 ℃, and the vertical temperature field is +/-0.005 ℃;

(3) the viscometer reticle recognition device adopts a 6-channel high-definition high-speed network digital camera to acquire images in real time and is used for measurement, so that the upper and lower scales on the capillary tube are automatically recognized and are used for image recognition control, and the workload brought by calibrating a large number of capillary tubes is reduced;

(4) the automatic imbibition is carried out by using the low-noise constant-pressure vacuum pump device, a stable air source can be provided for imbibition of 6 capillary viscometer simultaneously, the air suction amount is automatically adjusted, the device is suitable for the viscosimeter with the inner diameter range of 0.45 mm-6.9 mm, a capillary clamp with adjustable level is adopted, the capillary clamp is convenient, rapid and reliable to clamp, the capillary is connected with an air nozzle on an instrument through a silica gel hose with good flexibility, and the operation is convenient;

(5) the instrument adopts an external air source and an external ultra-silent air compressor to provide a stable air source for the air suction module, adopts the whole-course operation control of a computer, and has the characteristics of simple and convenient operation, easy learning and easy maintenance.

Drawings

FIG. 1 is a front view of a refrigerant compressor of the present invention;

FIG. 2 is a front view of the thermostatic chamber of the present invention;

fig. 3 is an overall front view of the present invention.

In the figure: 1. a circulating pump in the refrigerator; 2. a cold bath main body; 3. a constant temperature heat pipe; 4. a refrigeration coil; 5. a refrigeration compressor; 6. a first external circulation pump; 7. a second external circulation pump; 8. a refrigeration radiator; 9. a heat radiation fan; 10. a vacuum system; 11. a temperature control module; 12. a suction module; 13. a camera; 14. a circulating water pipe; 15. a thermostatic bath; 16. a control module; 17. a special-purpose computer; 18. muting an air compressor; 19. and (5) a constant temperature chamber.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, an embodiment of the present invention is shown: the utility model provides a high accuracy viscosity capillary detection device, including compressor 5 and thermostatic chamber 19, compressor 5's upper end is connected with cooler 8 through the pipeline, cooling fan 9 is installed to cooler 8's upper end, compressor 5's the other end is connected with cold bath main part 2 through the pipeline, 2 inside constant temperature heat pipe 3 and the refrigeration coil pipe 4 of installing respectively of cold bath main part, the one end of cold bath main part 2 is connected with first outer circulating pump 6 and the outer circulating pump 7 of second respectively through the pipeline, first outer circulating pump 6 is located one side of the outer circulating pump 7 of second, thermostatic chamber 19 is located one side of compressor 5, 19 inside constant temperature tank 15 that is provided with of thermostatic chamber, 15 internally mounted of constant temperature tank has camera 13, circulating pipe 14 is installed at constant temperature tank 15 both ends, one side of constant temperature tank 15 is provided with control module 16.

Further, the other end of the cold bath main body 2 is connected with a circulating pump 1 in the refrigerator through a pipeline.

Further, a temperature control module 11 is installed below the thermostatic bath 15, and a vacuum system 10 is arranged on one side of the temperature control module 11.

Further, a suction module 12 is disposed above the vacuum system 10.

Further, a dedicated computer 17 is installed on one side of the thermostatic chamber 19.

Further, a mute air compressor 18 is installed at one side of the dedicated computer 17.

Further, the cooling bath main body 2 is communicated with a refrigeration radiator 8 through a pipeline.

Further, the constant temperature heat pipe 3 and the refrigeration coil 4 are connected with the temperature control module 11 through a lead.

The working principle is as follows: when the constant-temperature control device is used, the constant-temperature control host machine, the host machine cabinet and the internal circulation system of the host machine are placed in a special constant-temperature chamber, the space of the instrument, which is 500mm away from the wall, is kept, and the circulating water pipe is conveniently connected and maintained behind the instrument. The computer desk and the computer are placed at appropriate positions on the left side of the thermostatic chamber, and the computer desk and the computer can be conveniently connected with a host and operated. The special refrigeration thermostatic circulation bath, the movable thermostatic chamber thermostatic air conditioner and the mute air compressor are placed in another suitable position on the back of the thermostatic chamber according to the site, and a circulating water pipe and a cold air pipeline are conveniently connected. After confirming that all parts of the instrument are normally connected, a certain amount of distilled water or purified water is added into the instrument by using a self-sucking pump. Last border of observation window is crossed to the water face, it is reserve to prepare about 150L distilled water or pure water at first, the container of 220V self priming pump water inlet pipe connection splendid attire distilled water or pure water that the reuse was equipped with, or directly put the lower part in the container to water pipe one end, the water injection well choke that special refrigeration constant temperature circulation of self priming pump water piping connection bathes the lower part, open the water injection valve, 3 white blast pipes on taking off special refrigeration constant temperature circulation bath back, take off black end cap, the end of 3 root canals is down, put the container that can the water receiving below, so that the water that spills over in order to connect the dress blast pipe. After the preparation works, water is prepared, and the water adding process is completed by 2 persons in a coordinated mode. One person observes the water level in front of the main machine, when the liquid level of the water level in the main machine is about 30mm away from the lower part of the main machine cover, the other person is informed to close the self-priming pump or pull out the power supply of the self-priming pump immediately, and the water adding valve at the lower part of the special refrigeration constant-temperature circulating bath is closed immediately, (note that in the water adding process, after 3 exhaust pipes are continuously discharged, the exhaust pipes are respectively plugged by plugs, if 2 persons are uncoordinated in the matching process, or the water level in the main machine is higher than a stainless steel barrel of the main machine, water flows back into the instrument to affect use), and when the water adding is completed, the water adding is completed preliminarily (after the circulation of a circulating pump is. Before starting, the machine can be started after the check and confirmation are needed, a twister switch (a standby switch is arranged on the right side and is useless) on the left side in front of the special refrigeration constant-temperature circulating bath is turned on, the compressor and the circulating pump are started, and the special refrigeration constant-temperature circulating bath and the constant-temperature host machine can be circulated to normally control the temperature. If the special refrigeration constant-temperature circulating bath and the constant-temperature host do not normally circulate, the 2 thin exhaust pipe plugs can be taken down again to exhaust again until the 2 external circulating pumps normally circulate, and then the exhaust pipes are plugged again. The special refrigeration constant temperature circulating bath and high-precision constant temperature control part is adopted, the PID temperature control of an imported high-precision temperature control meter is adopted, the temperature of an imported high-precision glass platinum resistor is measured, the temperature is stable, the service life is long, the temperature range is 18-40 ℃, and the resolution ratio is displayed: 0.001 ℃, temperature control precision: a horizontal temperature field is +/-0.005 ℃, a vertical temperature field is +/-0.005 ℃, in order to ensure the temperature control precision of the instrument, a thermostatic chamber is built, the whole thermostatic cell body is placed in the thermostatic chamber, the ambient temperature fluctuation around the thermostatic cell body is less than +/-1 ℃, a viscometer reticle recognition device adopts a 6-way high-definition high-speed network digital camera to acquire images in real time and measure, the upper and lower scales on a capillary tube are automatically recognized and used for image recognition control, the workload brought by calibrating a large number of capillary tubes is reduced, a low-noise constant-pressure vacuum pump device is used for automatically absorbing liquid, a stable air source can be simultaneously provided for absorbing liquid of 6 capillary tube viscometer, the air suction amount is automatically adjusted, the internal diameter range of the viscometer is 0.45-6.9 mm, meanwhile, a level-adjustable capillary tube clamp is adopted, the capillary tube is convenient, fast and reliable to clamp, the capillary tube is connected with an, the operation is convenient.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a high accuracy viscosity capillary detection device, includes compressor (5) and thermostatic chamber (19), its characterized in that, the upper end of compressor (5) is connected with refrigeration radiator (8) through the pipeline, and radiator fan (9) are installed to the upper end of refrigeration radiator (8), and the other end of compressor (5) is connected with cold bath main part (2) through the pipeline, and inside constant temperature heat pipe (3) and the refrigeration coil pipe (4) of installing respectively of cold bath main part (2), the one end of cold bath main part (2) is connected with first outer circulating pump (6) and second outer circulating pump (7) respectively through the pipeline, and first outer circulating pump (6) are located one side of second outer circulating pump (7), thermostatic chamber (19) are located one side of compressor (5), and thermostatic chamber (19) inside is provided with thermostatic bath (15), the camera (13) is installed inside the thermostatic bath (15), the circulating water pipe (14) is installed at two ends of the thermostatic bath (15), and the control module (16) is arranged on one side of the thermostatic bath (15).

2. A high precision viscosity capillary detection device according to claim 1, wherein: the other end of the cold bath main body (2) is connected with a circulating pump (1) in a refrigerating machine through a pipeline.

3. A high precision viscosity capillary detection device according to claim 1, wherein: a temperature control module (11) is installed below the thermostatic bath (15), and a vacuum system (10) is arranged on one side of the temperature control module (11).

4. A high precision viscosity capillary detection device according to claim 3, wherein: and a suction module (12) is arranged above the vacuum system (10).

5. A high precision viscosity capillary detection device according to claim 1, wherein: and a special computer (17) is arranged on one side of the thermostatic chamber (19).

6. A high accuracy viscosity capillary testing device in accordance with claim 5, wherein: and a mute air compressor (18) is arranged on one side of the special computer (17).

7. A high precision viscosity capillary detection device according to claim 1, wherein: the cold bath main body (2) is communicated with a refrigeration radiator (8) through a pipeline.

8. A high precision viscosity capillary tube measuring device according to claim 1 or 3, wherein: the constant temperature heat pipe (3) and the refrigeration coil (4) are connected with the temperature control module (11) through leads.