CN212932297U

CN212932297U - Instant viscosity detection device of acrylic resin

Info

Publication number: CN212932297U
Application number: CN202021689837.9U
Authority: CN
Inventors: 戴卫军; 付玉柱; 俞建根; 周伟东
Original assignee: Suzhou Jianxing Chemical Technology Co ltd
Current assignee: Suzhou Jianxing Chemical Technology Co ltd
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2021-04-09
Anticipated expiration: 2030-08-14

Abstract

The utility model relates to the production field of acrylic resin, in particular to an instant viscosity detection device for acrylic resin, which comprises a reaction vessel, a suction nozzle positioned in the reaction vessel, a suction pump positioned outside the reaction vessel and a detection station; the suction end of the suction pump is connected with a deformable connecting pipe fitting extending to the interior of the reaction vessel; the top of the reaction vessel is fixedly provided with a linear motor with an output shaft vertically downward, the output shaft of the linear motor extends into the reaction vessel through a communicating hole, the lower end of the linear motor is coaxially and fixedly connected with a connecting rod, and the lower end of the connecting rod is fixedly connected with the suction nozzle; the detection station comprises a sample container and a viscometer, and the bottom of the sample container is communicated with a liquid return pipe. The device is provided with a liftable suction nozzle in the reaction container, can sample from different positions to reflect the uniform condition of liquid viscosity, and is provided with a buffer container before the detection station for temporarily storing samples and avoiding mixing of new and old samples.

Description

Instant viscosity detection device of acrylic resin

Technical Field

The utility model relates to an acrylic resin production technical field especially relates to an instant viscosity detection device of acrylic resin.

Background

The acrylic resin is a general term for polymers of acrylic acid, methacrylic acid and derivatives thereof, and is a necessary raw material of some coatings, and the production process of the acrylic resin comprises the following steps: feeding, heating and dripping, controlling temperature, preserving heat, adjusting viscosity, measuring solid content and cooling.

During the production of acrylic resins, it is often necessary to measure the viscosity of the acrylic resin. Traditional detection needs to be got from reaction vessel and is carried out viscosity detection in the detection area again, wastes time and energy to the sample after the test will be scrapped and handled, causes pollution and waste easily.

Chinese patent liquid on-line viscosity detection device and liquid feeding device (patent number: CN209311273U) disclose a viscosity detection device which can be used for on-line detection of material viscosity, has high efficiency, and can feed the detected material back to a feeding tank after detection. However, the sampling position of the device is fixed, and the uniform condition of the liquid viscosity cannot be reflected.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an acrylic resin instant viscosity detection device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an instant viscosity detection device for acrylic resin comprises a reaction container, a suction nozzle positioned inside the reaction container, a suction pump positioned outside the reaction container and a detection station; the suction end of the suction pump is connected with a deformable connecting pipe fitting extending to the interior of the reaction vessel; the top of the reaction vessel is fixedly provided with a linear motor with an output shaft vertically downward, the output shaft of the linear motor extends into the reaction vessel through a communication hole, the lower end of the linear motor is coaxially and fixedly connected with a connecting rod, and the lower end of the connecting rod is fixedly connected with the suction nozzle; the detection station includes sample container and viscometer, the output of suction pump communicates through the pipeline in the sample container inner chamber, the viscosity test probe lower extreme of viscometer extends to in the inner chamber of sample container, the bottom intercommunication of sample container has the liquid return pipe, and the other end of liquid return pipe extends to in reaction vessel's the inner chamber, install the liquid return valve on the liquid return pipe.

Preferably, still include buffer container, the output of suction pump is connected with communicating pipe, the other end of communicating pipe with buffer container connects, buffer container's bottom is connected with the feed liquor pipe, installs the feed liquor valve on the feed liquor pipe, the lower extreme of feed liquor pipe extends to the upper portion of sample container inner chamber.

Preferably, the bottom of the sample container is provided with a bottom groove, the liquid return pipe is fixedly arranged at the bottom of the bottom groove, a liquid level meter is arranged inside the bottom groove, the liquid return valve and the liquid inlet valve are both electrically operated valves, and the liquid level meter is electrically connected with the liquid inlet valve.

Preferably, the lower end of the viscosity detection probe extends to the middle-lower part of the inner cavity of the sample container.

Preferably, the deformable connecting tube is a folded tube.

Preferably, a sealing ring is fixedly arranged inside the communication hole, and an output shaft of the linear motor is in sealing movable fit in the sealing ring along the vertical direction.

Preferably, the suction pump is fixedly installed at an outer side of the reaction vessel.

The utility model has the advantages that:

1. the device is provided with a liftable suction nozzle in the reaction vessel, and the suction nozzle can be used for sampling from different positions by changing the height of the suction nozzle, so that the uniform condition of the liquid viscosity can be reflected.

2. The buffer container is arranged in front of the detection station and used for temporarily storing the samples, and when the detection station is emptied, the new samples are allowed to be injected, so that the mixing of the new samples and the old samples is avoided, and the detection error is reduced.

Drawings

Fig. 1 is a schematic structural diagram of an instant viscosity detection device for acrylic resin according to the present invention;

FIG. 2 is a schematic structural view of a detection station of the instant viscosity detection device for acrylic resin according to the present invention;

fig. 3 is a schematic structural diagram of a position a in fig. 1 of an apparatus for detecting an instant viscosity of acrylic resin according to the present invention.

In the figure: 1-reaction vessel, 2-suction nozzle, 3-folding tube, 4-suction pump, 5-communicating tube, 6-buffer vessel, 7-liquid inlet tube, 8-detection station, 81-sample vessel, 82-viscometer, 83-viscosity detection probe, 84-bottom tank, 85-liquid level meter, 9-liquid return tube, 10-liquid return valve, 11-linear motor and 12-sealing ring.

Detailed Description

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

Referring to fig. 1-3, an apparatus for measuring the instantaneous viscosity of acrylic resin comprises a reaction vessel 1, a suction nozzle 2 located inside the reaction vessel 1, a suction pump 4 located outside the reaction vessel 1, and a measuring station 8;

the suction pump 4 is fixedly arranged outside the reaction vessel 1, and a suction end flange of the suction pump 4 is connected with a deformable connecting pipe fitting extending into the reaction vessel 1; the top of the reaction vessel 1 is fixedly provided with a linear motor 11 with an output shaft vertically downward, the output shaft of the linear motor 11 extends into the reaction vessel 1 through a communication hole formed in the top of the reaction vessel 1, the lower end of the output shaft is coaxially and fixedly connected with a connecting rod, and the lower end of the connecting rod is fixedly connected with the suction nozzle 2, so that the suction nozzle 2 can lift along with the extension and retraction of the output shaft of the linear motor 11.

Specifically, the deformable connecting pipe fitting is the folding pipe 3, when the suction nozzle 2 goes up and down, the folding pipe 3 is folded or extended along with the folding pipe, and knotting or touching of the stirring mechanism of the pipe fitting in a bending state is avoided.

Further, the inside of intercommunicating pore sets firmly sealing washer 12, linear electric motor 11's output shaft is in along the sealed movable fit of vertical direction in sealing washer 12, can scrape off the liquid that is stained with on linear electric motor 11 output shaft.

The output end flange of suction pump 4 is connected with communicating pipe 5, the other end of communicating pipe 5 is connected with buffer container 6, buffer container 6's bottom is connected with feed liquor pipe 7, installs the feed liquor valve on the feed liquor pipe 7, and feed liquor pipe 7 sends the sample of extraction into in detecting station 8.

Detect station 8 and include sample container 81 and viscometer 82, the lower extreme of feed liquor pipe 7 extends to the upper portion of sample container 81 inner chamber, viscometer 82's viscosity test probe 83 lower extreme extends to the well lower part of sample container 81 inner chamber, the bottom intercommunication of sample container 81 has liquid return pipe 9, and the other end of liquid return pipe 9 extends to the inner chamber upper portion of reaction vessel 1, install liquid return valve 10 on the liquid return pipe 9.

Further, a bottom groove 84 is formed in the bottom of the sample container 81, the liquid return pipe 9 is fixedly arranged at the bottom of the bottom groove 84, a liquid level meter 85 is arranged inside the bottom groove 84, the liquid return valve 10 and the liquid inlet valve are both electrically operated valves, and the liquid level meter 85 is electrically connected with the liquid inlet valve.

The reactant reacts in the reaction container 1, when sampling, the suction nozzle 2 is controlled to lift through the linear motor 11, so that the suction nozzle 2 is at a proper sampling height, the suction pump 4 pumps the sample in the reaction container 1 out through the suction nozzle 2 and the folding pipe 3, and the sample is conveyed into the buffer container 6 through the communicating pipe 5 and is temporarily stored in the buffer container 6.

Before the viscosity of the sample is detected, the liquid return valve 10 is opened, the liquid stored in the sample container 81 is drained, the liquid level meter 85 detects the liquid level in the sample container 81, if the liquid level in the sample container 81 is higher than the inner wall of the bottom of the sample container 81, the liquid inlet valve is in a closed state and cannot be opened, the samples of different batches are prevented from being mixed together, when the liquid level in the sample container 81 is lower than the inner wall of the bottom of the sample container 81, (a small amount of accumulated liquid in the bottom groove 84 is allowed), the liquid inlet valve can be opened, during detection, the liquid return valve 10 is closed and opened, the sample in the buffer container 6 is transferred into the sample container 81, the viscosity of the sample is detected by the viscometer 82, and after the detection is finished, the liquid return valve 10 is opened, and the sample is sent back to the reaction container 1.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The device for detecting the instant viscosity of the acrylic resin is characterized by comprising a reaction container (1), a suction nozzle (2) positioned inside the reaction container (1), a suction pump (4) positioned outside the reaction container (1) and a detection station (8);

the suction end of the suction pump (4) is connected with a deformable connecting pipe fitting extending to the interior of the reaction vessel (1); the top of the reaction container (1) is fixedly provided with a linear motor (11) with an output shaft vertically downward, the output shaft of the linear motor (11) extends into the reaction container (1) through a communicating hole, the lower end of the linear motor is coaxially and fixedly connected with a connecting rod, and the lower end of the connecting rod is fixedly connected with the suction nozzle (2);

detect station (8) and include sample container (81) and viscosimeter (82), the output of suction pump (4) communicates through the pipeline in sample container (81) inner chamber, viscosity test probe (83) lower extreme of viscosimeter (82) extends to in the inner chamber of sample container (81), the bottom intercommunication of sample container (81) has liquid return pipe (9), and the other end of liquid return pipe (9) extends to in the inner chamber of reaction vessel (1), install liquid return valve (10) on liquid return pipe (9).

2. The device for detecting the instant viscosity of the acrylic resin as claimed in claim 1, further comprising a buffer container (6), wherein the output end of the suction pump (4) is connected with a communicating pipe (5), the other end of the communicating pipe (5) is connected with the buffer container (6), the bottom of the buffer container (6) is connected with a liquid inlet pipe (7), a liquid inlet valve is installed on the liquid inlet pipe (7), and the lower end of the liquid inlet pipe (7) extends to the upper part of the inner cavity of the sample container (81).

3. The apparatus for detecting the instantaneous viscosity of acrylic resin as claimed in claim 2, wherein a bottom tank (84) is disposed at the bottom of the sample container (81), the liquid return pipe (9) is fixedly disposed at the bottom of the bottom tank (84), a liquid level meter (85) is disposed inside the bottom tank (84), the liquid return valve (10) and the liquid inlet valve are both electrically operated valves, and the liquid level meter (85) is electrically connected to the liquid inlet valve.

4. The acrylic resin instant viscosity detecting device according to claim 1, 2 or 3, characterized in that the lower end of the viscosity detecting probe (83) extends to the middle lower part of the inner cavity of the sample container (81).

5. The apparatus for detecting the instantaneous viscosity of acrylic resin according to claim 1, 2 or 3, characterized in that said deformable connecting tube is a folded tube (3).

6. The instant viscosity detection device of acrylic resin according to claim 1, 2 or 3, characterized in that a sealing ring (12) is fixedly arranged inside the communication hole, and the output shaft of the linear motor (11) is in sealing movable fit in the sealing ring (12) along the vertical direction.

7. The apparatus for detecting the instantaneous viscosity of acrylic resin according to claim 1, 2 or 3, characterized in that the suction pump (4) is fixedly installed outside the reaction vessel (1).