Viscometer with constant temperature function

Abstract

The utility model relates to the technical field of viscosity measurement, and particularly discloses a viscometer with a constant temperature function, the viscometer comprises a viscometer body, a measurer, a sample tube and a constant temperature device, the constant temperature device comprises a heat preservation sleeve, the sample tube is wrapped with the heat preservation sleeve, a sealed heat preservation gap is formed between the inner wall of the heat preservation sleeve and the outer wall of the sample tube, and the heat preservation sleeve is arranged in the heat preservation gap. The heat-insulating gap is used for accommodating a heat-insulating medium; a flow inlet and a flow outlet are formed in the side wall of the heat preservation sleeve and communicate with the heat preservation gap. The temperature of the to-be-measured sample can be controlled when the viscometer is used for measuring, the influence of the temperature on the viscosity of the to-be-measured sample during measurement is reduced, and the viscosity measurement result is more accurate.

Description

Technical Field

[0001] The present application relates to the field of viscosity measurement technology, and in particular to a viscometer with a constant temperature function. Background Art

[0002] Viscometer is an instrument used to measure fluid viscosity and is widely used in chemical, pharmaceutical, food and other industries.

[0003] Most viscometers in the prior art consist of a viscometer body, a measuring instrument, and a sample tube. The measuring instrument is attached to one side of the viscometer body, and the sample tube is positioned below the measuring instrument, with the sample tube and measuring instrument aligned. In operation, the measuring instrument is inserted into the sample tube, where it measures the viscosity of the fluid being tested, and the result is displayed on the viscometer body.

[0004] However, temperature has a significant impact on fluid viscosity. When the temperature of the fluid decreases, the viscosity of the fluid will increase significantly, which will affect the accuracy and stability of the measurement results. Utility Model Content

[0005] In order to control the temperature of a sample to be measured during viscometer measurement, the present application provides a viscometer with a constant temperature function.

[0006] The present application provides a viscometer with a constant temperature function, which adopts the following technical solution:

[0007] A viscometer with a constant temperature function comprises a viscometer body, a measuring instrument and a sample tube, and also comprises a constant temperature device, wherein the constant temperature device comprises a thermal insulation sleeve, the thermal insulation sleeve being wrapped around the outside of the sample tube, a sealed thermal insulation gap being formed between the inner wall of the thermal insulation sleeve and the outer wall of the sample tube, the thermal insulation gap being used to accommodate a thermal insulation medium; an inlet and an outlet are respectively formed on the side walls of the thermal insulation sleeve, the inlet and the outlet being both connected to the thermal insulation gap.

[0008] By adopting this technical solution, a heat-insulating medium at the desired sample temperature is introduced into the heat-insulating gap through the inlet, where it flows through the gap before being discharged through the outlet. As the heat-insulating medium flows through the sidewalls of the sample tube, the sample undergoes heat exchange with the heat-insulating medium, maintaining the desired sample temperature. This allows for temperature control during viscometer measurements.

[0009] Optionally, the inlet is close to the bottom of the thermal insulation sleeve, and the outlet is close to the top of the thermal insulation sleeve.

[0010] By adopting the above technical solution, the insulation medium flows in from the inlet near the bottom of the insulation sleeve and is discharged from the outlet near the top of the insulation sleeve. When the insulation medium flows in the insulation gap, the insulation medium and the side wall of the sample tube are more fully contacted, so that the heat transfer of the insulation medium is more uniform, and the heat exchange between the sample to be tested and the insulation medium is better achieved, so that the temperature of the sample to be tested is maintained at a stable level during viscosity measurement.

[0011] Optionally, a temperature gauge is provided on the side wall of the thermal insulation sleeve, the dial of the temperature gauge is located outside the thermal insulation sleeve, and the temperature probe of the temperature gauge extends into the thermal insulation gap.

[0012] By adopting the above technical solution, the thermometer can monitor the temperature in the insulation gap in real time. Since the temperature of the insulation gap is consistent with the temperature of the sample to be tested, the thermometer can monitor the temperature of the sample to be tested in real time. During use, the user can adjust the flow rate and temperature of the insulation medium in real time based on the temperature displayed on the thermometer, thereby achieving more precise control of the temperature of the sample to be tested.

[0013] Optionally, the sample tube is separately arranged from the thermal insulation sleeve, and a limiting protrusion is provided around the sample tube near the injection port, and the lower end of the limiting protrusion abuts against the upper end of the thermal insulation sleeve.

[0014] By adopting this technical solution, when the sample tube is in the insulation sleeve, the limiting protrusion can limit the position of the sample tube, preventing the sample tube from falling completely into the insulation sleeve. When the sample tube needs to be removed from or inserted into the insulation sleeve, the user can grasp the side wall of the limiting protrusion to remove the sample tube, making it easier to operate. Separating the sample tube from the insulation sleeve also allows for more thorough cleaning of the insulation sleeve and the inside and outside of the sample tube after use, extending the service life of the viscometer.

[0015] Optionally, a sealing ring is provided at the sleeve opening of the thermal insulation sleeve, and the sealing ring is tightly in contact with the outer wall of the sample tube.

[0016] By adopting the above technical solution, the sealing ring is in close contact with the outer wall of the sample tube, further improving the constant temperature effect of the thermal insulation sleeve.

[0017] Optionally, the viscometer body is horizontally connected to a support platform, a sliding block is fixed to the bottom of the thermal insulation sleeve, and the sliding block is clamped in the support platform; the upper end of the support platform abuts against the bottom of the thermal insulation sleeve.

[0018] By adopting the above technical solution, under the action of gravity, the bottom of the insulation sleeve abuts against the upper end of the support platform, and the sliding block is clamped in the support platform, which can limit the shaking of the insulation sleeve and make the insulation sleeve placed horizontally on the support platform.

[0019] Optionally, a limiting block is fixed to the lower end of the sliding block, and the upper end of the limiting block abuts against the lower end of the supporting platform.

[0020] By adopting the above technical solution, the limit block can limit the vertical sliding of the sliding block. Combined with the limitation of the sliding block, the insulation sleeve can be firmly clamped on the support platform to reduce the risk of the insulation sleeve tipping over during use.

[0021] Optionally, the heat-insulating medium is set to hot water, hot air or thermal oil.

[0022] By adopting the above technical solution, hot water, hot gas or thermal oil all have good thermal stability.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By setting up a constant temperature device, when the insulation medium flows in the insulation gap, the sample to be tested exchanges heat with the insulation medium through the side wall of the sample tube, so that the sample to be tested maintains the required temperature, thereby achieving temperature control of the sample to be tested when measuring with the viscometer;

[0025] 2. By setting up a thermometer, the temperature of the sample to be tested can be monitored in real time, so that the flow rate and temperature of the insulation medium can be adjusted in real time to achieve more precise control of the temperature of the sample to be tested;

[0026] 3. By separating the sample tube from the insulation sleeve, the insulation sleeve and the inside and outside of the sample tube can be cleaned more thoroughly after use, thereby extending the service life of the viscometer. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0028] Figure 2 is a cross-sectional view of a side view of an embodiment of the present application;

[0029] Figure 3 yes Figure 2 A partial enlarged schematic diagram of part A.

[0030] Figure numerals: 1. viscometer body; 2. sample tube; 21. limit block; 3. constant temperature device; 31. insulation sleeve; 32. insulation gap; 33. inlet; 34. outlet; 35. sealing ring; 4. measuring device; 5. thermometer; 51. temperature probe; 52. temperature dial; 6. support platform; 7. sliding block; 8. limit block. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-3This application is described in further detail.

[0032] The present application discloses a viscometer with a constant temperature function, referring to Figure 1 and Figure 2 , including a viscometer body 1, a measuring instrument 4, a sample tube 2 and a constant temperature device 3. The sample tube 2 is arranged below the measuring instrument 4, with the opening direction of the sample tube 2 facing the measuring instrument 4, and the sample tube 2 is used to hold the sample to be measured; the measuring instrument 4 is suspended on one side of the viscometer body 1, and the measuring instrument 4 is used to extend into the sample tube 2 to measure the viscosity of the sample to be measured; at the same time, the constant temperature device 3 is set on the outside of the sample tube 2 to achieve temperature control of the sample to be measured.

[0033] Specifically, the constant temperature device 3 includes an insulating sleeve 31, which is fixed to the outside of the sample tube 2, and the sleeve opening of the insulating sleeve 31 is sealed to the outer wall of the sample tube 2 near the injection port. The insulating sleeve 31 and the sample tube 2 can be connected in an integrally formed manner. A sealed insulating gap 32 is formed between the outer wall of the sample tube 2 and the inner wall of the insulating sleeve 31. The insulating gap 32 contains an insulating medium, which can be heated to the specific temperature required by the sample; the insulating medium exchanges heat with the sample to be tested located in the sample tube 2 through the side wall of the sample tube 2, so as to realize the control of the temperature of the sample to be tested by the constant temperature device 3. In this embodiment, the insulating medium is set to hot water, hot air or thermal oil.

[0034] Furthermore, the sidewall of the insulation sleeve 31 is provided with an inlet 33 and an outlet 34, both of which communicate with the insulation gap 32. A hose is mounted on each of the inlet 33 and outlet 34. The other end of the hose corresponding to the inlet 33 is connected to a device for supplying insulation medium, which heats the insulation medium to the desired temperature of the sample being tested. The other end of the hose corresponding to the outlet 34 is connected to a container for recovering the insulation medium. During use, the insulation medium flows into the insulation gap 32 through the inlet 33 and is discharged through the outlet 34.

[0035] When using the viscometer, first fill the insulation gap 32 with an insulating medium at the specific temperature required for the sample to be tested. This allows the insulating medium to fully contact the sidewalls of the sample tube 2 to exchange heat, preheating the sample tube 2 to the desired temperature. The sample to be tested is then added to the sample tube 2, where it also exchanges heat with the sidewalls, maintaining the desired temperature. Next, the measuring device 4 is inserted into the sample tube 2, ensuring full contact with the sample, and the viscosity of the sample is measured. Because the insulating medium maintains a stable temperature, the sample to be tested also maintains a stable temperature during measurement, improving the accuracy and stability of the viscometer's measurement results.

[0036] In order to further improve the temperature control effect of the insulation medium, the inlet 33 is located near the bottom of the insulation sleeve 31, and the outlet 34 is located near the top of the insulation sleeve 31, so that when the insulation medium flows in the insulation gap 32, the insulation medium and the side wall of the sample tube 2 are more fully in contact, making the heat transfer of the insulation medium more uniform, and better realizing the heat exchange between the sample to be tested and the insulation medium, so as to achieve a stable temperature of the sample to be tested during viscosity measurement.

[0037] Preferably, a thermometer 5 is provided on the side wall of the insulation sleeve 31, wherein the temperature probe 51 of the thermometer 5 extends into the insulation gap 32 and can detect the temperature in the insulation gap 32 in real time. The dial of the thermometer 5 is located outside the insulation sleeve 31 and is used to display the temperature detected by the temperature probe 51. Since the temperature of the insulation gap 32 is consistent with the temperature of the sample to be tested, the thermometer 5 can monitor the temperature of the sample to be tested in real time. During use, the temperature probe 51 monitors the temperature in the insulation gap 32 in real time and displays it on the dial. The user adjusts the flow rate and temperature of the insulation medium in real time according to the temperature displayed by the thermometer 5 to achieve more precise control of the temperature of the sample to be tested.

[0038] The viscometer body 1 is fixedly connected to a support platform 6, which is arranged horizontally. The support platform 6 and the viscometer body 1 can be fixed by welding. The support platform 6 is U-shaped, and one end of the support platform 6 is opened away from the direction of the viscometer body 1. A sliding block 7 is welded to the bottom of the insulation sleeve 31, and the sliding block 7 is clamped in the opening of the support platform 6. The lower end of the sliding block 7 is welded to a limit block 8, and the upper end of the limit block 8 abuts the lower end of the support platform 6, so that the limit block 8 can limit the vertical sliding of the sliding block 7. At this time, due to the effect of gravity, the upper end of the support platform 6 abuts the bottom of the insulation sleeve 31, and the insulation sleeve 31 is firmly fixed on the support platform 6 through the cooperation of the sliding block 7 and the limit block 8, so as to realize the connection between the insulation sleeve 31 and the viscometer body 1 and reduce the risk of the insulation sleeve 31 tipping over during use. In this embodiment, the sliding block 7 and the limit block 8 are connected in an integrated manner. When it is necessary to remove the heat-insulating sleeve 31 from the viscometer body 1 , the sliding block 7 can be taken out from one end of the opening of the support platform 6 .

[0039] Preferably, refer to Figure 2 and Figure 3The sample tube 2 is separated from the insulation sleeve 31, and a limiting protrusion 21 is provided around the side of the sample tube 2 near the injection port; when the sample tube 2 is inserted into the insulation sleeve 31, the lower end of the limiting protrusion 21 abuts against the upper end of the insulation sleeve 31, and the limiting protrusion 21 can limit the position of the sample tube 2 to prevent the sample tube 2 from falling completely into the insulation sleeve 31. When the sample tube 2 needs to be taken out or put into the insulation sleeve 31, the sample tube 2 can be taken out by clamping the side wall of the limiting protrusion 21, which is convenient for operation. At the same time, separating and removing the sample tube 2 from the insulation sleeve 31 can also more thoroughly clean the insulation sleeve 31 and the inner and outer sides of the sample tube 2 after the viscometer is used, thereby extending the service life of the viscometer.

[0040] In order to improve the sealing performance of the connection between the sample tube 2 and the insulation sleeve 31, a sealing ring 35 is provided at the sleeve opening of the insulation sleeve 31. The sealing ring 35 is tightly abutted against the outer wall of the sample tube 2, further improving the constant temperature effect of the insulation sleeve 31; at the same time, when the sample tube 2 is located in the insulation sleeve 31, the sealing ring 35 is abutted against the bottom of the limiting protrusion 21.

[0041] The viscometer with a constant temperature function disclosed in the embodiments of this application is implemented as follows: When using the viscometer, the insulation gap 32 is first filled with a heat-insulating medium at a predetermined temperature. The sample to be tested is then added to the sample tube 2. The measuring device 4 is then inserted into the sample tube 2, ensuring full contact between the measuring device 4 and the sample to be tested, and the viscosity is measured. During the measurement process, the sample to be tested exchanges heat with the heat-insulating medium through the side wall of the sample tube 2 to maintain a stable temperature. This ensures that the viscosity measurement result of the sample to be tested is not affected by temperature, resulting in a more accurate and stable measurement result.

[0042] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A viscometer with a constant temperature function, comprising a viscometer body (1), a measuring device (4) and a sample tube (2), characterized in that: The thermostat (3) further comprises a thermostat (3), wherein the thermostat (3) comprises a thermal insulation sleeve (31), the thermal insulation sleeve (31) being wrapped around the outside of the sample tube (2), a sealed thermal insulation gap (32) being formed between the inner wall of the thermal insulation sleeve (31) and the outer wall of the sample tube (2), the thermal insulation gap (32) being used to accommodate a thermal insulation medium; an inlet (33) and an outlet (34) are respectively provided on the side walls of the thermal insulation sleeve (31), and the inlet (33) and the outlet (34) are both connected to the thermal insulation gap (32).

2. A viscometer with a constant temperature function according to claim 1, characterized in that: The inlet (33) is close to the bottom of the thermal insulation sleeve (31), and the outlet (34) is close to the top of the thermal insulation sleeve (31).

3. The viscometer with a constant temperature function according to claim 1, characterized in that: A temperature gauge (5) is provided on the side wall of the thermal insulation sleeve (31), a dial of the temperature gauge (5) is located outside the thermal insulation sleeve (31), and a temperature probe (51) of the temperature gauge (5) extends into the thermal insulation gap (32).

4. The viscometer with a constant temperature function according to claim 1, characterized in that: The sample tube (2) and the thermal insulation sleeve (31) are separately arranged. A limiting protrusion (21) is provided on the periphery of the sample tube (2) near the injection port, and the lower end of the limiting protrusion (21) abuts against the upper end of the thermal insulation sleeve (31).

5. The viscometer with a constant temperature function according to claim 4, characterized in that: The sleeve opening of the thermal insulation sleeve (31) is provided with a sealing ring (35), and the sealing ring (35) is tightly in contact with the outer wall of the sample tube (2).

6. The viscometer with a constant temperature function according to claim 1, characterized in that: The viscometer body (1) is horizontally connected to a support platform (6); a sliding block (7) is fixed to the bottom of the thermal insulation sleeve (31); the sliding block (7) is clamped in the support platform (6); and the upper end of the support platform (6) abuts against the bottom of the thermal insulation sleeve (31).

7. The viscometer with a constant temperature function according to claim 6, characterized in that: A limiting block (8) is fixed at the lower end of the sliding block (7), and the upper end of the limiting block (8) abuts against the lower end of the support platform (6).

8. The viscometer with a constant temperature function according to claim 1, characterized in that: The heat preservation medium is set as hot water, hot air or heat transfer oil.

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