Portable viscosity tester with metal bath temperature control and straight pipe type viscometer

Abstract

The utility model relates to the technical field of petroleum viscosity detection, in particular to a portable viscosity tester with a metal bath temperature control and a straight pipe type viscometer, which comprises a box body, a storage battery pack, a constant temperature component, a viscometer component, a storage component, a functional component and an operating component, the storage battery pack is arranged on the inner side of the box body, the storage component is arranged above the box body, and the functional component is arranged above the box body. A viscometer assembly is arranged on the inner side of the box body, a functional assembly is arranged on the inner side of the box body, and an operation assembly is arranged on one side of the box body; compared with the problems of large equipment volume, inconvenience in carrying, large test sample quantity, low test speed and need of regular maintenance of liquid bath in the working process of the traditional viscosity measuring equipment, the device adopts the metal aluminum bath, so that the temperature fluctuation caused by bath liquid flowing in the liquid bath is avoided, the measuring accuracy is improved, and the measuring cost is reduced. Through the straight tube type viscometer, the coefficient of the viscometer can be changed only by changing the inner diameter of the capillary tube of the viscometer, and the straight tube type viscometer has very strong universality.

Description

TECHNICAL FIELD

[0001] The utility model relates to petroleum viscosity detection technical field especially relates to portable viscosity tester of metal bath temperature control, straight pipe type viscometer. BACKGROUND

[0002] In petroleum, chemical industry, lubricating oil and related industry, the measurement of viscosity is one of the important indicators for evaluating the properties of fluid; traditional viscosity determination equipment usually has some problems, such as large equipment volume, inconvenient to carry, a large number of samples are needed in the testing process, and the testing speed is slow; in addition, the traditional equipment often needs liquid bath to maintain constant temperature when using, which not only increases the complexity of the equipment, but also may cause temperature fluctuation caused by bath liquid flow, affecting the accuracy of the measurement result; at the same time, the use of liquid bath also needs to be supplemented regularly, which increases the maintenance cost and workload;

[0003] Therefore, aiming at the above problems, a portable viscosity tester of metal bath temperature control, straight pipe type viscometer is proposed, which uses metal aluminum bath to eliminate the temperature fluctuation caused by bath liquid flow in the liquid bath, improves the accuracy of measurement, and through the straight pipe type viscometer, only the inner diameter of the capillary tube of the viscometer needs to be changed to change the viscometer coefficient, which has strong universality. SUMMARY

[0004] In order to overcome the problems of large equipment volume, inconvenient to carry, large amount of test samples, slow test speed and the need for regular maintenance of liquid bath in the process of using traditional viscosity determination equipment in daily use.

[0005] The technical scheme of the utility model is as follows: a portable viscosity tester of metal bath temperature control, straight pipe type viscometer, comprising a box body, a battery pack, a constant temperature assembly, a viscometer assembly, a storage assembly, a function assembly and an operation assembly, the inner side of the box body is provided with the battery pack, the upper part of the box body is provided with the storage assembly, the inner side of the box body is provided with the viscometer assembly, the inner side of the box body is provided with the function assembly, one side of the box body is provided with the operation assembly, the constant temperature assembly comprises an upper cover plate, a metal aluminum bath frame, an electric heater and a temperature sensor, the inner side of the box body is provided with the upper cover plate, the lower part of the upper cover plate is provided with the metal aluminum bath frame, the inner side of the metal aluminum bath frame is provided with the electric heater, the inner side of the metal aluminum bath frame is provided with the temperature sensor, the viscometer assembly comprises a sample inlet, a temperature balance section, an upper working capillary tube section, an upper section sensor, a ball bubble, a lower working capillary tube section, a lower section sensor and a liquid outlet, the inner side of the metal aluminum bath frame is provided with the sample inlet, the lower part of the sample inlet is provided with the temperature balance section, the lower part of the temperature balance section is provided with the upper working capillary tube section, the inner side of the metal aluminum bath frame is provided with the upper section sensor, the lower part of the upper working capillary tube section is provided with the ball bubble, the lower part of the ball bubble is provided with the lower working capillary tube section, the inner side of the metal aluminum bath frame is provided with the lower section sensor, and the lower part of the lower working capillary tube section is provided with the liquid outlet.

[0006] Preferably, the instrument is powered by a battery, the viscosity meter assembly is inserted into the aluminum block bath of the aluminum bath frame, the aluminum block bath of the aluminum bath frame is heated by an electric heater, heat is transferred from the aluminum block bath to the viscosity meter assembly, the straight tube viscometer is inserted into the aluminum block bath and kept at a constant temperature point, when the sample is injected into the straight tube viscometer from the sample inlet, the sample flows into the temperature equilibration section under the action of gravity, reaches the set temperature in the temperature equilibration section, and then flows into the upper section of the working capillary, whether the liquid flows through the capillary at this position can be detected by the upper section sensor, after the signal is detected, the system starts timing, the sample continues to flow into the lower section of the working capillary after filling the bulb, whether the liquid flows through the capillary at this position can be detected by the lower section sensor, after the signal is detected, the system stops timing, and the obtained time multiplied by the capillary constant can obtain the kinematic viscosity of the sample, the capillary constant of the straight tube viscometer is obtained by reverse calculation, at a set temperature, a sample with a known viscosity value flows through the straight tube viscometer, the time from the detection point of the upper section to the detection point of the lower section is obtained, and the viscosity value is divided by the time to obtain the capillary constant of the straight tube viscometer, the device uses the straight tube viscometer for detection, the amount of test sample is small, the test speed is high, and when the aluminum block bath structure is used for testing, spilling does not occur, and the device is suitable for portable use.

[0007] Preferably, the storage assembly comprises a box cover and a mounting frame, the upper side of the box body is provided with the box cover, and the inner side of the box cover is provided with the mounting frame.

[0008] Preferably, the storage assembly further comprises a viscometer placing groove and a pipette placing groove, the inner side of the mounting frame is provided with the viscometer placing groove, and the inner side of the mounting frame is provided with the pipette placing groove.

[0009] Preferably, the function assembly comprises a liquid crystal touch screen, a USB interface and a heating indicator light, the inner side of the box body is provided with the liquid crystal touch screen, the inner side of the box body is provided with the USB interface, and the inner side of the box body is provided with the heating indicator light.

[0010] Preferably, the function assembly further comprises a power button, a charging connector and a waste liquid bottle buffer bottle integrated bin, the inner side of the box body is provided with the power button, the inner side of the box body is provided with the charging connector, and the inner side of the box body is provided with the waste liquid bottle buffer bottle integrated bin.

[0011] Preferably, the operation assembly comprises a fixing block and a rotating shaft, one side of the box body is provided with the fixing block, and the inner side of the fixing block is provided with the rotating shaft.

[0012] Preferably, the operation assembly further comprises a handle, the outer side of the rotating shaft is provided with the handle, and the handle and the rotating shaft are in rotating connection.

[0013] The utility model discloses the beneficial effects of:

[0014] The portable viscosity measuring instrument is characterized by the following: the instrument is powered by a battery pack, the aluminum block bath of the metal aluminum bath frame is heated by an electric heater, heat is transferred from the aluminum block bath to the viscometer assembly, the straight tube viscometer is inserted into the aluminum block bath and kept constant at a set temperature point, when the sample is injected into the straight tube viscometer from the sample inlet, the sample flows into the temperature equilibrium section under the action of gravity, reaches the set temperature in the temperature equilibrium section, and then flows into the upper section of the working capillary, whether the liquid flows through the capillary at this position can be detected by the upper section sensor, after the signal is detected, the system starts timing, the sample continues to flow into the lower section of the working capillary after the ball bubble is filled, whether the liquid flows through the capillary at this position can be detected by the lower section sensor, after the signal is detected, the system stops timing, the obtained time is multiplied by the capillary coefficient, and the kinematic viscosity of the sample can be obtained, the capillary constant of the straight tube viscometer is obtained by reverse calculation, the sample with a known viscosity value is allowed to flow through the straight tube viscometer at a set temperature, the time from the detection point of the upper section to the detection point of the lower section is obtained, and the capillary constant of the straight tube viscometer is obtained by dividing the viscosity value by the time, the metal constant temperature bath is designed and processed by using a metal aluminum rod, the bath body of the constant temperature bath is subjected to blackening and anodic oxidation treatment, has the characteristics of convenient carrying, clean and environmental protection, no need of bath liquid, good heat preservation effect, long service life and corrosion resistance, the processing size in the constant temperature bath is the same as the shape of the straight tube viscometer, so that the straight tube viscometer can be replaced and better constant temperature effect can be achieved, the aluminum has good heat conduction performance, the uniformity of the overall temperature of the aluminum bath can be ensured, temperature fluctuation caused by bath liquid flow in the liquid bath is avoided, and the work of supplementing bath liquid due to bath liquid reduction is also avoided, the viscometer is designed in a straight tube type, the external size of the viscometer is consistent and unified, and the viscometer can be used in the same metal constant temperature bath, only the capillary inner diameter of the viscometer needs to be changed, the coefficient of the viscometer can be changed, the viscometer has strong universality, different coefficients of the viscometer can cover different kinematic viscosity detection ranges, and the viscometer is extremely convenient to replace. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A first three-dimensional structure schematic diagram of the portable viscosity measuring instrument of the metal bath temperature control and straight tube viscometer is shown.

[0016] Figure 2 A local section structure schematic diagram of the portable viscosity measuring instrument of the metal bath temperature control and straight tube viscometer is shown.

[0017] Figure 3 A local three-dimensional structure schematic diagram of the portable viscosity measuring instrument of the metal bath temperature control and straight tube viscometer is shown.

[0018] Figure 4 A second three-dimensional structure schematic diagram of the portable viscosity measuring instrument of the metal bath temperature control and straight tube viscometer is shown.

[0019] BRIEF DESCRIPTION OF DRAWINGS 1, box; 2, battery pack; 101, upper cover plate; 102, metal aluminum bath frame; 103, electric heater; 104, temperature sensor; 201, sample inlet; 202, temperature balance section; 203, upper section of working capillary; 204, upper section sensor; 205, bulb; 206, lower section of working capillary; 207, lower section sensor; 208, liquid outlet; 301, box cover; 302, mounting bracket; 303, viscometer placement groove; 304, pipette placement groove; 401, liquid crystal touch screen; 402, USB interface; 403, heating indicator light; 404, power button; 405, charging connector; 406, waste bottle buffer bottle integrated warehouse; 501, fixed block; 502, rotating shaft; 503, handle. DETAILED DESCRIPTION

[0020] The utility model is further explained in connection with the drawings and examples.

[0021] Please refer to Figure 1 The utility model provides a kind of portable viscosity measuring instrument of metal bath temperature control, straight pipe type viscometer, a kind of portable viscosity measuring instrument of metal bath temperature control, straight pipe type viscometer, including box 1, battery pack 2, thermostatic assembly, viscometer component, storage component, function component and operating component, the inside of box 1 is provided with battery pack 2, the upper of box 1 is provided with storage component, the inside of box 1 is provided with viscometer component, the inside of box 1 is provided with function component, the side of box 1 is provided with operating component, thermostatic assembly includes upper cover plate 101, metal aluminum bath frame 102, electric heater 103 and temperature sensor 104, the inside of box 1 is provided with upper cover plate 101, the lower of upper cover plate 101 is provided with metal aluminum bath frame 102, the inside of metal aluminum bath frame 102 is provided with electric heater 103, the inside of metal aluminum bath frame 102 is provided with temperature sensor 104, viscometer component includes sample inlet 201, temperature balance section 202, upper section of working capillary 203, upper section sensor 204, bulb 205, lower section of working capillary 206, lower section sensor 207 and liquid outlet 208, the inside of metal aluminum bath frame 102 is provided with sample inlet 201, the lower of sample inlet 201 is provided with temperature balance section 202, the lower of temperature balance section 202 is provided with upper section of working capillary 203, the inside of metal aluminum bath frame 102 is provided with upper section sensor 204, the lower of upper section of working capillary 203 is provided with bulb 205, the lower of bulb 205 is provided with lower section of working capillary 206, the inside of metal aluminum bath frame 102 is provided with lower section sensor 207, the lower of lower section of working capillary 206 is provided with liquid outlet 208.

[0022] Please refer to Figures 2-4In the embodiment, the storage assembly includes a box cover 301 and a mounting frame 302. The upper portion of the box body 1 is provided with the box cover 301. The inner side of the box cover 301 is provided with the mounting frame 302. In use, the box body 1 can be opened and closed by turning over the box cover 301. The storage assembly further includes a viscometer placing groove 303 and a pipette placing groove 304. The inner side of the mounting frame 302 is provided with the viscometer placing groove 303. The inner side of the mounting frame 302 is provided with the pipette placing groove 304. In use, the viscometer can be stored in the viscometer placing groove 303. The pipette can be stored in the pipette placing groove 304.

[0023] The functional assembly includes a liquid crystal touch screen 401, a USB interface 402 and a heating indicator light 403. The inner side of the box body 1 is provided with the liquid crystal touch screen 401. The inner side of the box body 1 is provided with the USB interface 402. The inner side of the box body 1 is provided with the heating indicator light 403. The functional assembly further includes a power button 404, a charging connector 405 and a waste bottle buffer bottle integrated bin 406. The inner side of the box body 1 is provided with the power button 404. The inner side of the box body 1 is provided with the charging connector 405. The inner side of the box body 1 is provided with the waste bottle buffer bottle integrated bin 406. In use, the buffer bottle is placed at the rear of the bin, and the waste bottle is placed at the front of the bin. The rear hose of the bin is connected to the buffer bottle. The other metal connector of the buffer bottle is connected to the metal connector of the waste bottle by using the hose. The front side thin four-fluorine tube of the bin is inserted into the aluminum connector of the waste bottle and is slightly tightened. The vacuum pump is connected to the buffer bottle through the air pipe. The buffer bottle is connected to the waste bottle. A vacuum is formed in the waste bottle. Thus, the waste liquid and the washing liquid after the test are sucked into the waste bottle. The operation of cleaning the viscometer is completed. The operation assembly includes a fixed block 501 and a rotating shaft 502. One side of the box body 1 is provided with the fixed block 501. The inner side of the fixed block 501 is provided with the rotating shaft 502. The operation assembly further includes a handle 503. The outer side of the rotating shaft 502 is provided with the handle 503. The handle 503 and the rotating shaft 502 are rotationally connected. In use, the instrument can be conveniently taken by rotating the handle 503. The portability of the instrument is improved.

[0024] When working, first open the box cover 301, check whether the battery pack 2 in the box body 1 is sufficient, if not, charge through the charging connector 405; confirm that the viscosity meter assembly, functional assembly and operation assembly are installed perfectly, no damage or loose phenomenon; according to the test requirements, select the appropriate viscosity meter and place it in the viscosity meter placing groove 303 for standby; press the power button 404, start the instrument, the liquid crystal touch screen 401 displays the main interface, which can be set and operated through the touch screen; take out the selected viscosity meter from the viscosity meter placing groove 303, insert it into the aluminum block bath of the metal aluminum bath frame 102, ensure that the viscosity meter is in close contact with the aluminum block bath to effectively transfer heat, set the required test temperature, then press the heating button on the screen to start heating, the instrument will automatically start the electric heater 103 to heat the metal aluminum bath frame 102, and monitor the temperature in real time through the temperature sensor 104 to ensure the constant temperature effect;

[0025] When the metal aluminum bath frame 102 reaches the set temperature and stabilizes, use a pipette to inject an appropriate amount of sample from the sample inlet 201 into the straight tube viscosity meter, the sample flows into the temperature balance section 202 under the action of gravity, and continues to flow into the upper section 203 of the working capillary after reaching the set temperature; when the upper section sensor 204 detects that the sample flows through here, the system starts timing; after the sample continues to flow and fills the ball bubble 205, it flows into the lower section 206 of the working capillary, and when the lower section sensor 207 detects that the sample flows through here, timing is stopped; according to the timing result and the preset capillary coefficient, the kinematic viscosity value of the sample is calculated and displayed;

[0026] After the test is completed, the viscosity meter needs to be cleaned, the buffer bottle and the waste liquid bottle are connected, the vacuum pump is connected to the buffer bottle through the air pipe to form a vacuum environment, and the waste liquid and the washing liquid after the test are sucked into the waste liquid bottle; then take out the viscosity meter from the metal aluminum bath frame 102, put it back into the viscosity meter placing groove 303, turn off the power button 404, disconnect the charging connector 405, cover the box cover 301, and properly store the instrument; or clean it without taking out the straight tube viscosity meter for continuous use.

[0027] Through the above steps, the instrument uses the battery 2 to provide power, uses the insertion of the viscometer assembly into the aluminum block bath of the aluminum bath frame 102, uses the electric heater 103 to heat the aluminum block bath of the aluminum bath frame 102, uses the aluminum block bath to transfer heat to the viscometer assembly, the straight tube viscometer is inserted in the aluminum block bath, and the aluminum block bath is constant at the set temperature point, when the sample is injected from the sample inlet 201 to the straight tube viscometer, the sample flows into the temperature balance section 202 under the action of gravity, reaches the set temperature in the temperature balance section 202, and then flows into the working capillary upper section 203, and the upper section sensor 204 is used to detect whether the liquid flows through the capillary here, after the signal is detected, the system starts timing, the sample continues to flow into the working capillary lower section 206 after filling the ball bubble 205, and the lower section sensor 207 is used to detect the signal of the liquid flow, and the system stops timing after the signal is detected, and the obtained time is multiplied by the capillary coefficient, so that the kinematic viscosity of the sample is obtained, the capillary constant of the straight tube viscometer is obtained by reverse calculation, the sample with a known viscosity value flows through the straight tube viscometer at a set temperature, the time from the detection point of the upper section to the detection point of the lower section is obtained, and the viscosity value is divided by the time, so that the capillary constant of the straight tube viscometer is obtained, the device uses the straight tube viscometer for detection, the test sample amount is small, the test speed is high, and when the aluminum block bath structure is used for testing, the device will not spill, and is suitable for portable use.

[0028] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range of the person skilled in the art without departing from the purpose of the utility model.

Claims

1. A portable viscometer of the metal-bath temperature-controlled, straight-tube viscometer type, comprising a box (1) and a battery pack (2), characterized in that: The constant temperature assembly, the viscometer assembly, the storage assembly, the function assembly and the operation assembly are further included, the inside of the box (1) is provided with the battery pack (2), the upper portion of the box (1) is provided with the storage assembly, the inside of the box (1) is provided with the viscometer assembly, the inside of the box (1) is provided with the function assembly, one side of the box (1) is provided with the operation assembly, the constant temperature assembly includes the upper cover plate (101), the metal aluminum bath frame (102), the electric heater (103) and the temperature sensor (104), the inside of the box (1) is provided with the upper cover plate (101), the lower portion of the upper cover plate (101) is provided with the metal aluminum bath frame (102), the inside of the metal aluminum bath frame (102) is provided with the electric heater (103), the inside of the metal aluminum bath frame (102) is provided with the temperature sensor (104), the viscometer assembly includes the sample inlet (201), the temperature balance section (202), the upper working capillary section (203), the upper section sensor (204), the ball bubble (205), the lower working capillary section (206), the lower section sensor (207) and the liquid outlet (208), the inside of the metal aluminum bath frame (102) is provided with the sample inlet (201), the lower portion of the sample inlet (201) is provided with the temperature balance section (202), the lower portion of the temperature balance section (202) is provided with the upper working capillary section (203), the inside of the metal aluminum bath frame (102) is provided with the upper section sensor (204), the lower portion of the upper working capillary section (203) is provided with the ball bubble (205), the lower portion of the ball bubble (205) is provided with the lower working capillary section (206), the inside of the metal aluminum bath frame (102) is provided with the lower section sensor (207), the lower portion of the lower working capillary section (206) is provided with the liquid outlet (208).

2. The portable viscometer of claim 1, wherein: The storage assembly includes the box cover (301) and the mounting frame (302), the upper portion of the box (1) is provided with the box cover (301), the inside of the box cover (301) is provided with the mounting frame (302).

3. A portable viscometer of the type having a metal bath temperature controlled, straight tube viscometer according to claim 2, characterized in that: The storage assembly further includes the viscometer placing groove (303) and the pipette placing groove (304), the inside of the mounting frame (302) is provided with the viscometer placing groove (303), and the inside of the mounting frame (302) is provided with the pipette placing groove (304).

4. The portable viscometer of claim 1, wherein: The function assembly includes the liquid crystal touch screen (401), the USB interface (402) and the heating indicator light (403), the inside of the box (1) is provided with the liquid crystal touch screen (401), the inside of the box (1) is provided with the USB interface (402), and the inside of the box (1) is provided with the heating indicator light (403).

5. A portable viscometer of the type having a metal bath temperature controlled, straight tube viscometer according to claim 4, characterized in that: The function assembly further includes the power button (404), the charging connector (405) and the waste liquid bottle buffer bottle integrated warehouse (406), the inside of the box (1) is provided with the power button (404), the inside of the box (1) is provided with the charging connector (405), and the inside of the box (1) is provided with the waste liquid bottle buffer bottle integrated warehouse (406).

6. The portable viscometer of claim 1, wherein: The operation assembly includes the fixed block (501) and the rotating shaft (502), one side of the box (1) is provided with the fixed block (501), and the inside of the fixed block (501) is provided with the rotating shaft (502).

7. A portable viscometer of the type having a metal bath temperature controlled, straight tube viscometer according to claim 6, characterized in that: The operating assembly further comprises a handle (503), the outer side of the rotating shaft (502) is provided with the handle (503), and the handle (503) is rotationally connected with the rotating shaft (502).

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