A stirring device for calorimetric testing

Abstract

The utility model discloses a stirring device for calorimetric testing, which belongs to the technical field of stirring devices, and includes: a calorimetric barrel for calorimetric testing and a stirring assembly installed inside the calorimetric barrel; the stirring assembly includes a top cover supported on the top of the calorimetric barrel and a connecting ring integrally formed at the bottom of the top cover, and the connecting ring is threadedly connected to the top of the inner side of the calorimetric barrel, a motor is installed at the top center of the top cover, and the output end of the motor passes through the top cover and is connected to a rotating shaft, a connecting sleeve is sleeved at the lower part of the side wall of the rotating shaft, and a plurality of L-shaped stirring rods are evenly connected to the side wall of the connecting sleeve, a nut is supported at the bottom of the connecting sleeve, and the nut is threadedly connected to the corresponding side of the rotating shaft, two electric heating plates are symmetrically installed at the inner bottom of the calorimetric barrel, and a temperature sensor is installed at the inner bottom center of the calorimetric barrel. The stirring device for calorimetric testing can make various materials mix more fully, thereby improving the heat transfer effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of stirring devices, in particular to a stirring device used for calorimetric testing. Background Art

[0002] The complexity of the stirring device lies in the fact that its principle involves multiple processes such as fluid mechanics, heat transfer, mass transfer and chemical reaction. In the reaction calorimetry test, the types of agitators are mainly paddle type and anchor type. The viscosity of the liquid has a great influence on the stirring state. For reactions with low viscosity, the stirring efficiency is good, and the problems of heat transfer and mass transfer are not obvious. However, in solid-liquid heterogeneous reactions, especially high viscosity reactions, due to the influence of stirring efficiency, the problems of heat transfer and mass transfer are prominently exposed, resulting in insufficient mixing of materials and affecting the normal progress of the test.

[0003] For example, the Chinese invention patent application number CN201810132683.4 is a stirring circulation device for a calorimetric barrel, which includes a barrel, characterized in that: a flow pump is arranged in the middle of the bottom of the barrel, the outlet of the flow pump is connected to the bottom interface of the water distribution plate, there is an outlet on the water distribution plate, the outlet is connected to a water distribution pipe, the water distribution pipe is located around the inner side of the barrel, the top end of the water distribution pipe is closed, and a water distribution hole is opened at the top side wall of the water distribution pipe. The water distribution holes are three holes at the same height pointing to the center of the barrel and the circumference of the barrel; the water distribution pipe is an L-shaped thin-walled pipe, which is connected to the water distribution plate by welding, and the water distribution pipe is evenly distributed around the explosive bomb or oxygen bomb, and is at the same distance from the inner wall of the barrel and the wall of the bomb body. This device has the disadvantage that the mixing is not sufficient when using some materials, which affects the normal progress of the test. Utility Model Content

[0004] The utility model aims to provide a stirring device for calorimetric testing to solve the problems raised in the background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a stirring device for calorimetric testing, comprising:

[0006] A calorimetric barrel for calorimetric testing and a stirring assembly mounted inside the calorimetric barrel;

[0007] The stirring assembly includes a top cover supported on the top of the calorimetric barrel and a connecting ring integrally formed at the bottom of the top cover, and the connecting ring is threadedly connected to the inner top of the calorimetric barrel, a motor is installed at the top center of the top cover, and the output end of the motor passes through the top cover and is connected to a rotating shaft, a connecting sleeve is sleeved on the lower part of the side wall of the rotating shaft, and a plurality of L-shaped stirring rods are evenly connected to the side wall of the connecting sleeve, a nut is supported at the bottom of the connecting sleeve, and the nut is threaded on the corresponding side of the rotating shaft, two electric heating plates are symmetrically installed at the inner bottom of the calorimetric barrel, and a temperature sensor is installed at the center of the inner bottom of the calorimetric barrel.

[0008] In a further embodiment, a fixing plate is installed at the bottom of the calorimetric barrel, and a plurality of fixing holes are distributed in a ring shape on the top of the fixing plate.

[0009] In a further embodiment, a thread groove is configured on the top of the fixing plate, and the calorimetric barrel is threadedly connected in the thread groove.

[0010] In a further embodiment, a discharge pipe is inserted into a lower portion of a side wall of the calorimetric barrel, and a flange is welded to an end of the discharge pipe away from the calorimetric barrel.

[0011] In a further embodiment, a display screen is installed on one side outer wall of the calorimetric barrel, and the display screen is electrically connected to the temperature sensor.

[0012] In a further embodiment, two holding rods are symmetrically connected to the side wall of the top cover, and rubber films are bonded to the side walls of the holding rods.

[0013] In a further embodiment, a fixing seat is fixedly sleeved on the side wall of the motor, and a plurality of fixing bolts are threadedly connected in a ring shape between the fixing seat and the top of the top cover.

[0014] Compared with the prior art, the technical effects and advantages of the utility model are as follows:

[0015] The existing solution of the stirring device for calorimetric testing can fully mix the liquid material with low viscosity when stirring it, and the heat transfer and mass transfer are not significantly affected. However, when stirring the material with high viscosity, the mixing phenomenon is likely to be insufficient, resulting in a significant impact on the heat transfer and mass transfer, affecting the normal test. The present solution can increase a certain shear force through multiple L-shaped stirring rods, so that the materials can be stirred and mixed efficiently. If the stirring rod is not suitable, the nut can be unscrewed to remove the connecting sleeve and the stirring rod, and then the appropriate connecting sleeve and stirring rod can be replaced and the nut can be tightened again, so that various materials can be mixed more fully, thereby improving the heat transfer effect.

[0016] The stirring device used for calorimetric testing can make various materials mixed more fully, thereby improving the heat transfer effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 For the utility model Figure 1 Cross-sectional view along the aa direction;

[0020] Figure 3 For the utility model Figure 2 A magnified view of the structure at center A;

[0021] Figure 4 It is a structural schematic diagram of the stirring rod of the utility model;

[0022] Figure 5 It is a schematic structural diagram of the top cover of the utility model.

[0023] Description of reference numerals:

[0024] In the figure: 1. Calorimetric barrel; 2. Top cover; 3. Connecting ring; 4. Motor; 5. Rotating shaft; 6. Connecting sleeve; 7. Stirring rod; 8. Nut; 9. Heating plate; 10. Temperature sensor; 11. Display screen; 12. Fixing plate; 13. Fixing hole; 14. Discharge pipe; 15. Holding rod; 16. Fixing seat. DETAILED DESCRIPTION

[0025] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0026] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside in the figures shown in the present utility model, and are explained here together.

[0027] The connection method can be bonding, welding, bolt connection, etc., depending on actual needs.

[0028] In order to make the various materials mix more fully, thereby improving the heat transfer effect, such as Figures 1 to 5As shown, it includes: a calorimetric barrel 1 for calorimetric testing and a stirring assembly installed inside the calorimetric barrel 1, the stirring assembly includes a top cover 2 supported on the top of the calorimetric barrel 1, the bottom of the top cover 2 is integrally formed with a connecting ring 3 by injection molding, the integrally formed injection molding structure is not easy to be damaged, the connecting ring 3 is threadedly connected to the inner top of the calorimetric barrel 1, and the threaded connection method is convenient for disassembly and assembly of the top cover 2, the side wall of the top cover 2 is symmetrically connected with two holding rods 15 by screws, the holding rods 15 are convenient for applying force to rotate the top cover 2, and the side wall of the holding rod 15 is bonded with a rubber film, which can increase friction and avoid accidental slipping when holding.

[0029] A motor 4 is installed at the top center of the top cover 2, and a fixing seat 16 is fixedly sleeved on the side wall of the motor 4, and a plurality of fixing bolts are threadedly connected in a ring shape between the fixing seat 16 and the top of the top cover 2, which can effectively increase the working stability of the motor 4. The output end of the motor 4 passes through the top cover 2 and is coaxially connected to a rotating shaft 5 (the material can be selected from stainless steel, Hastelloy, or chlorotetrafluoroethylene to ensure durability), and the motor 4 can drive the rotating shaft 5 to rotate continuously.

[0030] A connecting sleeve 6 is sleeved on the lower part of the side wall of the rotating shaft 5, and a plurality of L-shaped stirring rods 7 (made of corrosion-resistant and non-deformable material to ensure durability) are evenly connected to the side wall of the connecting sleeve 6 through screws. A nut 8 is supported at the bottom of the connecting sleeve 6, and the nut 8 can limit the connecting sleeve 6 to prevent it from falling out from the bottom of the rotating shaft 5. The nut 8 is screwed on the corresponding side of the rotating shaft 5. Two electric heating plates 9 are symmetrically installed on the inner bottom of the calorimetric barrel 1 through multiple groups of screws, and the existing principle can be used to heat the material. A temperature sensor 10 is installed at the center of the inner bottom of the calorimetric barrel 1, and the current position temperature can be measured using the existing principle. A display screen 11 is installed on the outer wall of one side of the calorimetric barrel 1, and the display screen 11 is electrically connected to the temperature sensor, and the indication of the temperature sensor 10 can be displayed using the existing principle.

[0031] A discharge pipe 14 is inserted into the lower part of one side wall of the calorimetric barrel 1, and a control valve (not shown in the figure) is installed on the discharge pipe 14. The material can be discharged through the discharge pipe 14 by opening the control valve, and a flange is welded at one end of the discharge pipe 14 away from the calorimetric barrel 1, which is convenient for connection with an external pipeline. A fixing plate 12 is installed at the bottom of the calorimetric barrel 1, and a threaded groove is constructed on the top of the fixing plate 12, and the calorimetric barrel 1 is threadedly connected in the threaded groove, which is convenient for disassembly and assembly of the fixing plate 12. A plurality of fixing holes 13 are arranged in a ring shape on the top of the fixing plate 12, and bolts are screwed between the fixing holes 13 and the external structure to increase the stability of the device.

[0032] The motor 4, electric heating plate 9, temperature sensor 10, and display screen 11 are all set as conventional instruments. The working principle, size, and model are irrelevant to the function of this application, so they are not described in detail, and they are all controlled by a remote control switch.

[0033] How it works

[0034] The stirring device for calorimetric testing first connects the electrical components in the device to an external power supply and a remote control switch, turns on two electric heating plates 9 to heat the material using the existing principle, and at the same time, the motor 4 drives the multiple stirring rods 7 on the side wall of the rotating shaft 5 to rotate to fully mix the material. The material is mixed evenly so that the heating is uniform. In this way, the temperature sensor 10 measures a more accurate reading, ensuring the normal progress of the calorimetric test. The material can open the control valve to discharge the calorimetric barrel 1 through the discharge pipe 14;

[0035] When the stirring rod 7 needs to be replaced, first hold the holding rod 15 to rotate and unscrew the top cover 2, then unscrew the nut 8 to remove the connecting sleeve 6 and the stirring rod 7 on its side wall, select the corresponding stirring rod 7 according to the actual type of the current material, then put the connecting sleeve 6 where the stirring rod 7 of this type is located on the side wall of the rotating shaft 5, tighten the nut, and then re-tighten the connecting ring 3 at the bottom of the top cover 2.

[0036] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stirring device for calorimetric testing, comprising: A calorimetric barrel (1) for calorimetric testing and a stirring assembly installed inside the calorimetric barrel (1); The invention is characterized in that: the stirring assembly comprises a top cover (2) supported on the top of the calorimetric barrel (1) and a connecting ring (3) integrally formed at the bottom of the top cover (2), and the connecting ring (3) is threadedly connected to the inner top of the calorimetric barrel (1), a motor (4) is installed at the top center of the top cover (2), and the output end of the motor (4) passes through the top cover (2) and is connected to a rotating shaft (5), a connecting sleeve (6) is sleeved on the lower part of the side wall of the rotating shaft (5), and a plurality of L-shaped stirring rods (7) are evenly connected to the side wall of the connecting sleeve (6), a nut (8) is supported at the bottom of the connecting sleeve (6), and the nut (8) is threadedly connected to the corresponding side of the rotating shaft (5), two electric heating plates (9) are symmetrically installed at the inner bottom of the calorimetric barrel (1), and a temperature sensor (10) is installed at the inner bottom center of the calorimetric barrel (1).

2. A stirring device for calorimetric testing according to claim 1, characterized in that: A fixing plate (12) is installed at the bottom of the calorimetric barrel (1), and a plurality of fixing holes (13) are distributed in a ring shape at the top of the fixing plate (12).

3. A stirring device for calorimetric testing according to claim 2, characterized in that: The top of the fixing plate (12) is configured with a thread groove, and the calorimetric barrel (1) is threadedly connected in the thread groove.

4. A stirring device for calorimetric testing according to claim 1, characterized in that: A discharge pipe (14) is inserted into the lower part of one side wall of the calorimetric barrel (1), and a flange is welded to one end of the discharge pipe (14) away from the calorimetric barrel (1).

5. A stirring device for calorimetric testing according to claim 1, characterized in that: A display screen (11) is installed on one side outer wall of the calorimetric barrel (1), and the display screen (11) is electrically connected to a temperature sensor.

6. A stirring device for calorimetric testing according to claim 1, characterized in that: Two holding rods (15) are symmetrically connected to the side walls of the top cover (2), and rubber films are bonded to the side walls of the holding rods (15).

7. A stirring device for calorimetric testing according to claim 1, characterized in that: A fixing seat (16) is fixedly sleeved on the side wall of the motor (4), and a plurality of fixing bolts are threadedly connected in a ring shape between the fixing seat (16) and the top of the top cover (2).

Images