CN203598842U

CN203598842U - Novel Ubbelohde viscometer thermostat

Info

Publication number: CN203598842U
Application number: CN201320796962.3U
Authority: CN
Inventors: 张林林; 胡鹏飞; 马帅; 聂容春; 刘同宣
Original assignee: Anhui University of Science and Technology
Current assignee: Anhui University of Science and Technology
Priority date: 2013-12-03
Filing date: 2013-12-03
Publication date: 2014-05-21
Anticipated expiration: 2023-12-03

Abstract

The utility model discloses a novel Ubbelohde viscometer thermostat and particularly relates to a device for solving the problems that the condition is hard to control and the precision is low in laboratorial measurement of the inherent viscosity, belonging to the technical field of the measurement of the inherent viscosity of a polymer. The measuring device comprises a thermostatic bath, a seal cover, a thermostat, an Ubbelohde viscometer drainage exit and a thermostatic bath drainage exit, wherein the thermostatic bath is used for storing an Ubbelohde viscometer and water and providing a place for measurement; the seal cover is used for sealing the thermostatic bath so that the water temperature of the system is kept constant and heat is unlikely to be dissipated; the thermostat is used for controlling the water temperature of the system to be kept constant so as to guarantee the accuracy of measured data; the Ubbelohde viscometer drainage exit is used for draining a waste liquor used for washing the Ubbelohde viscometer; the thermostatic bath drainage exit is used for draining the water in the thermostatic bath after the measurement is finished. By adopting the novel Ubbelohde viscometer thermostat disclosed by the utility model, the measurement efficiency and the experimental accuracy can be effectively improved.

Description

A kind of novel Ubbelohde viscometer thermostat

Technical field

The utility model relates to a kind of novel Ubbelohde viscometer thermostat, relates in particular to a kind of thermostat of new polymers characteristic viscosity determining.

Background technology

It is a kind of important method that current laboratory utilizes the inherent viscosity of determination of ubbelohde viscometer polymer, a kind of most widely used general, economical, easy laboratory apparatus, when general mensuration polymer property viscosity, require temperature necessary constant, so increased the difficulty of experiment, in experimental determination process, the constant temperature water baths that adopt carry out temperature control more, iron stand is fixed Ubbelohde viscometer, water temperature rapid heat dissipation on the one hand, the upper and lower liquid level temperature of thermostat differs larger, affect measurement result, on the other hand with the fixing Ubbelohde viscometer of iron stand, be difficult to make it to keep vertical, and assay method exists experimental precision poor at present, a series of defects such as complex operation.

Summary of the invention

The present invention has overcome the deficiencies in the prior art, and a kind of novel Ubbelohde viscometer thermostat is provided.

The purpose of this utility model is to provide a kind of simple in structure, the novel Ubbelohde viscometer thermostat of operating aspect, and it is easy to control that this device is measured process, and experimental precision and efficiency value are high.

For achieving the above object, the technical solution adopted in the utility model is: a kind of novel Ubbelohde viscometer thermostat, is characterized in that:

Thermostat, for storing Ubbelohde viscometer and He Shui, provides and measures place;

Seal cover, for by thermostat sealing, makes system water temperature keep constant, and heat is difficult for shedding;

Thermostat, keeps stationary temperature for hierarchy of control water temperature, guarantees the data accuracy of measuring;

Ubbelohde viscometer discharge outlet, for getting rid of the waste liquid that cleans Ubbelohde viscometer;

Thermostat discharge outlet, after mensuration for discharging the water of thermostat.

Meanwhile, the utility model can also be able to further realization by following technology:

Preferably, described thermostat is hollow cylinder shape, is transparent heat-insulation material, and upside is by seal cover, and supporting Ubbelohde viscometer is equipped with in inside, and thermostat left and right cornice has resistive heater, and lower left is thermostat discharge outlet.

Preferably, three mouths of pipe of described seal cover upside band and water filling port are respectively with supporting rubber stopper.

Preferably, described supporting Ubbelohde viscometer width is slightly less than the diameter of thermostat, lower end be Ubbelohde viscometer discharge outlet with supporting catheter, be positioned at thermostat bottom.

Further, described thermostat is positioned at the low side of thermostat, and left side is that temperature indicator right side is thermoregulator.

Operation principle:

The present invention is that to make to measure system temperature by airtight thermostat constant, the polymer solution of mensuration is joined in supporting Ubbelohde viscometer, naturally fall in pipe by sample solution, with the time of stopwatch accurate recording liquid-level measurement line free-falling, obtain needed data.

Compared with prior art, advantage of the present invention is:

In the airtight environment not dispelling the heat, keep system constant temperature, overcome traditional employing constant temperature water bath and easily dispelled the heat, water temperature is unbalanced, difficult control of temperature; Adopt supporting Ubbelohde viscometer to solve complex operation in conventional clean process, the shortcoming that Ubbelohde viscometer is frangible.

Accompanying drawing explanation

Fig. 1 is novel Ubbelohde viscometer thermostat schematic diagram of the present invention.

Fig. 2 is seal cover top view of the present invention.

In Fig. 1: thermostat-1, seal cover-2, the mouth of pipe-3,4,5, the Ubbelohde viscometer mouth of pipe-3 (1), 4 (1), 5 (1), supporting Ubbelohde viscometer-6, Ubbelohde viscometer discharge outlet-7, thermostat-8, temperature indicator-9, thermoregulator-10, resistive heater-11, thermostat discharge outlet-12, water filling port-13.

In Fig. 2: seal cover-2, the mouth of pipe-3,4,5.

The specific embodiment

For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:

A kind of polyacrylamide Photoinitiated reactions apparatus, comprises thermostat, seal cover, thermostat, Ubbelohde viscometer discharge outlet, thermostat discharge outlet, thermostat.

Preferably, described thermostat 1 is hollow cylinder shape, is transparent heat-insulation material, and upside is by seal cover 2, and supporting Ubbelohde viscometer 6 is equipped with in inside, and thermostat 1 left and right cornice has resistive heater 11, and lower left is thermostat discharge outlet 12.

Preferably, the described seal cover 2 upside band mouth of

pipe

3,4,5 and water filling ports 13.

Preferably, described supporting Ubbelohde viscometer 6 width are slightly less than the diameter of thermostat 1, lower end be Ubbelohde viscometer discharge outlet 7 with supporting stopper and catheter, be positioned at thermostat 1 bottom.

Further, described thermostat 8 is positioned at the low side of thermostat 1, and left side is that temperature indicator 9 right sides are thermoregulator 10.

Middle Fig. 1 describes the course of work of the present invention by reference to the accompanying drawings:

First, open thermoregulator 10 and be shown as when temperature required until temperature indicator 9, the sample solution of required mensuration is added by the Ubbelohde viscometer mouth of pipe 3 (1),

After constant temperature a period of time, the mouth of

pipe

3,4 is used to rubber stopper jam-pack, from the mouth of pipe, bleed in 5 places, in the time that sample rises to required liquid level, the first open mouth of pipe 3, the more open mouth of pipe 4 naturally fall solution in pipe, start, to the needed time of end lines, to be scaled the intrinsic viscosity of sample by formula with the stopwatch accurate recording liquid level alignment of testing oneself.

Mensuration finishes by deionized water, supporting Ubbelohde viscometer 6 to be cleaned afterwards, discharges cleaning fluid by catheter from Ubbelohde viscometer discharge outlet 7.

The above, be illustrative rather than determinate, therefore in the variation and the modification that do not depart under the utility model general structure, within should belonging to protection domain of the present utility model.

Claims

1. a novel Ubbelohde viscometer thermostat, comprising:

2. Ubbelohde viscometer thermostat according to claim 1, it is characterized in that: described thermostat (1) is hollow cylinder shape, for transparent heat-insulation material, upside is by seal cover (2), supporting Ubbelohde viscometer (6) is equipped with in inside, thermostat (1) left and right cornice has resistive heater (11), and lower left is thermostat discharge outlet (12).

3. novel Ubbelohde viscometer thermostat according to claim 2, is characterized in that: described seal cover (2) upside has the mouth of pipe (3,4,5) and water filling port (13).

4. according to Ubbelohde viscometer thermostat described in claim 1 or 3, it is characterized in that: described supporting Ubbelohde viscometer (6) width is slightly less than the diameter of thermostat (1), lower end be Ubbelohde viscometer discharge outlet (7) with supporting catheter, be positioned at thermostat (1) bottom.

5. according to Ubbelohde viscometer thermostat described in claim 1 or 4, it is characterized in that: described thermostat (8) is positioned at the low side of thermostat (1), left side is that temperature indicator (9) right side is thermoregulator (10).