Magnetic stirring tank

Abstract

The utility model discloses a magnetic stirring tank which comprises a stirring tank and a clamping sleeve, the outer side face and the lower end of the stirring tank are wrapped by the clamping sleeve, a discharging port is formed in the lower end of the stirring tank, and a first air inlet pipe and a first air outlet pipe which are arranged on the same horizontal plane are arranged on the upper portion of the outer side face of the clamping sleeve. A hollow partition plate is mounted above the jacket in the stirring tank, a second air inlet pipe and a second air outlet pipe on the same horizontal plane are arranged on the side wall of the hollow partition plate, a vertical through hole is formed in one side, far away from the feeding hole, of the hollow partition plate, and a sleeve is mounted in the through hole. The stirring tank has the beneficial effects that the hollow partition plate is arranged in the stirring tank, water vapor of the jacket enters the hollow partition plate through the first air outlet pipe and the second air inlet pipe, liquid entering from the feeding hole is preheated by utilizing waste heat of the water vapor, the energy utilization rate is improved, and then the water vapor flows into the bottom of the stirring tank through the sleeve of the hollow partition plate to be heated; the heating time of the preheated liquid is shortened, and the liquid mixing rate is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of medicine production, in particular to a magnetic stirring tank. BACKGROUND

[0002] The magnetic stirrer is a laboratory instrument for liquid mixing, mainly used for stirring or simultaneously heating and stirring low-viscosity liquid or solid-liquid mixture. Its basic principle is to use the principle of repulsion of the same nature and attraction of the different nature of the magnetic field to push the magnetic stirring rod placed in the container to rotate in a circle, so as to achieve the purpose of stirring the liquid. The magnetic stirrer is generally accompanied by a heating temperature control system during use, thereby controlling the temperature of the solution.

[0003] However, the existing heating device is generally fixedly installed, so that the temperature of a certain point or area is relatively high compared with other positions, resulting in a certain temperature difference between the position and other positions. During the process of adding liquid, local temperature difference is prone to be too large, the inner wall material is affected by thermal expansion and cold contraction, the shrinkage degree is different, and cracks and other conditions occur, thereby reducing the service life. At the same time, the cavity volume in the tank is large, the heating and mixing time is increased, and the liquid mixing rate is reduced, so it needs to be improved. SUMMARY

[0004] In view of the above prior art, the utility model provides a magnetic stirring tank, which mainly solves the technical problems in the above background.

[0005] To achieve the above purpose, the technical scheme of the utility model embodiment is as follows:

[0006] A magnetic stirring tank, comprising a stirring tank and a jacket, the outer side of the stirring tank and the lower end are wrapped by the jacket, and the lower end of the stirring tank is provided with a discharge port, the top end of the stirring tank is provided with a feed port, the outer side of the jacket is provided with a first air inlet pipe and a first air outlet pipe on the same horizontal plane, a hollow partition plate is installed above the jacket in the stirring tank, the side wall of the hollow partition plate is provided with a second air inlet pipe and a second air outlet pipe on the same horizontal plane, the second air inlet pipe and the second air outlet pipe pass through the stirring tank, the first air outlet pipe and the second air inlet pipe are connected through flanges, a vertical through hole is arranged on the side of the hollow partition plate away from the feed port, a sleeve pipe is installed in the through hole, an asynchronous motor is installed at the bottom of the stirring tank, a stirring shaft is connected to the output end of the asynchronous motor, a magnet driving block is connected to the stirring shaft, and a magnetic stirrer matched with the magnet driving block is installed on the inner wall of the stirring tank.

[0007] Preferably, the lower part of the stirring tank is provided with a liquid level meter.

[0008] Preferably, the inside wall of the stirring tank is provided with an annular limiting sheet at the bottom of the hollow partition plate, and the hollow partition plate is threadedly connected with the second gas inlet pipe and the second gas outlet pipe.

[0009] Preferably, the stirring tank is provided with a manhole at the top.

[0010] Preferably, the stirring tank is provided with a pressure gauge at the top.

[0011] Preferably, the stirring tank is provided with supporting legs at the bottom, and the supporting legs are provided with rollers at the bottom.

[0012] Preferably, the stirring tank is provided with a baffle plate perpendicular to the hollow partition plate above the hollow partition plate at the top, and a space for liquid passing is left between the bottom of the baffle plate and the top of the hollow partition plate.

[0013] The magnetic stirring tank has the advantages that:

[0014] (1) The jacket is arranged outside the stirring tank, water vapor is introduced, the lower part of the stirring tank is uniformly heated, the internal temperature balance is improved, the control on the quality of the liquid is increased, and the service life of the stirring tank and the stability of liquid stirring are improved.

[0015] (2) The hollow partition plate is arranged in the stirring tank, the water vapor in the jacket enters the hollow partition plate through the first gas outlet pipe and the second gas inlet pipe, the liquid entering from the feeding port is preheated by using the waste heat of the water vapor, the energy utilization rate is improved, the preheated liquid flows into the bottom of the stirring tank through the sleeve of the hollow partition plate for heating, the heating time of the preheated liquid is shortened, and the mixing rate of the liquid is improved.

[0016] (3) The asynchronous motor drives the stirring shaft to rotate, and simultaneously drives the magnet driving block on the stirring shaft to rotate, the magnet driving block drives the magnetic stirrer installed in the stirring tank to rotate, the liquid in the stirring tank is stirred, the efficiency of liquid mixing is improved, and the liquid is uniformly heated. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 FIG. 1 is a structural schematic view of a magnetic stirring tank in an embodiment of the present application;

[0018] Figure 2 FIG. 2 is an enlarged structural schematic view of part A in FIG. 1; Figure 1

[0019] Figure 3 FIG. 3 is a structural schematic view of a magnetic stirring tank in an embodiment 2 of the present application;

[0020] Figure 4 FIG. 4 is an enlarged structural schematic view of part B in FIG. 3; Figure 3

[0021] BRIEF DESCRIPTION OF DRAWINGS​​

[0022] 1, stirring tank; 2, jacket; 3, discharge port; 4, feed port; 5, first gas inlet pipe; 6, first gas outlet pipe; 7, hollow partition; 8, second gas inlet pipe; 9, second gas outlet pipe; 10, sleeve; 11, asynchronous motor; 12, magnet driving block; 13, magnetic stirrer; 14, liquid level meter; 15, manhole; 16, pressure gauge; 17, supporting leg; 18, roller; 19, baffle. DETAILED DESCRIPTION

[0023] The technical scheme of the present application is further described in detail below in combination with the drawings and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. In the following description, the expression "some embodiments" describes a subset of all possible embodiments, but it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with each other without conflict.

[0024] It should be further noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "inner", "outer", "left", "right", and similar expressions used herein are for the purpose of illustration only and are not intended to be the only implementation.

[0025] Example 1

[0026] Please refer to the drawings Figures 1-2The application provides a magnetic stirring tank, which comprises a stirring tank 1 and a jacket 2, the outer side and lower end of the stirring tank 1 are wrapped by the jacket 2, the lower end of the stirring tank 1 is provided with a discharge port 3, the top end of the stirring tank 1 is provided with a feeding port 4, the upper part of the outer side of the jacket 2 is provided with a first air inlet pipe 5 and a first air outlet pipe 6 on the same horizontal plane, a hollow partition plate 7 is installed above the jacket 2 in the stirring tank 1, the side wall of the hollow partition plate 7 is provided with a second air inlet pipe 8 and a second air outlet pipe 9 on the same horizontal plane, the second air inlet pipe 8 and the second air outlet pipe 9 pass through the stirring tank 1, the first air outlet pipe 6 and the second air inlet pipe 8 are connected through flanges, the side of the hollow partition plate 7 away from the feeding port 4 is provided with a vertical through hole, a sleeve pipe 10 is installed in the through hole, an asynchronous motor 11 is installed at the bottom of the stirring tank 1, the output end of the asynchronous motor 11 is connected with a stirring shaft, the stirring shaft is connected with a magnet driving block 12, and the inner wall of the stirring tank 1 is installed with a magnetic stirrer 13 matched with the magnet driving block 12.

[0027] The heated water vapor enters the jacket 2 through the first air inlet pipe 5 to heat the stirring tank 1, so that the lower part of the stirring tank 1 is uniformly heated, the internal temperature balance is improved, the control on the liquid quality is increased, the service life of the stirring tank 1 and the stability of liquid stirring are improved, after the stirring tank 1 is preheated by the water vapor, the liquid to be mixed flows into the stirring tank 1 through the feeding port 4 and falls on the hollow partition plate 7, the water vapor in the jacket 2 enters the hollow partition plate 7 through the first air outlet pipe 6 and the second air inlet pipe 8 and is discharged from the second air outlet pipe 9, the liquid entering from the feeding port 4 is preheated by the waste heat of the water vapor, the energy utilization rate is improved, the liquid on the hollow partition plate 7 flows into the bottom of the stirring tank 1 through the sleeve pipe 10 of the hollow partition plate 7, the heating time of the preheated liquid is shortened, the mixing rate of the liquid is improved, when the liquid accumulates to a certain height at the bottom of the stirring tank 1, the asynchronous motor 11 is started, the stirring shaft is driven to rotate by the asynchronous motor 11, the magnet driving block 12 on the stirring shaft is also driven to rotate, the magnet driving block 12 drives the magnetic stirrer 13 installed in the stirring tank 1 to rotate, the liquid in the stirring tank 1 is stirred, the mixing efficiency of the liquid is improved, the liquid is uniformly heated, and the liquid is discharged from the discharge port 3 at the bottom of the stirring tank 1 after the liquid is mixed. Preferably, the discharge port 3 is connected with a control valve to control the discharge of the liquid.

[0028] Specifically, the lower part of the stirring tank 1 is provided with a liquid level meter 14. The liquid level in the stirring tank 1 is measured by arranging the liquid level meter 14 at the lower part of the stirring tank 1, so that the liquid height in the stirring tank 1 is prevented from being higher than the hollow partition plate 7, the liquid on the hollow partition plate 7 cannot be stirred and mixed by the magnetic stirrer 13, the liquid is not uniformly mixed, and the mixing effect is reduced.

[0029] Specifically, the inside wall of the stirring tank 1 is provided with an annular limiting piece at the bottom of the hollow partition plate 7, and the hollow partition plate 7 is threadedly connected with the second air inlet pipe 8 and the second air outlet pipe 9. Preferably, the side wall of the hollow partition plate 7 is provided with symmetrical threaded through holes, the outer side wall of the second air inlet pipe 8 and the second air outlet pipe 9 is provided with external threads corresponding to the threaded through holes on the side wall of the hollow partition plate 7, the hollow partition plate 7 is positioned by the annular limiting piece, the hollow partition plate 7 is rotated to align the threaded through holes of the hollow partition plate 7 with the corresponding through holes on the stirring tank 1, the second air inlet pipe 8 and the second air outlet pipe 9 are rotated to pass through the through holes and are fixedly connected with the hollow partition plate 7, thereby improving the stability of the hollow partition plate 7. Preferably, the hollow partition plate 7 is composed of a left half plate and a right half plate, and the contact surface of the left half plate and the right half plate is tightly attached. In subsequent cleaning of the inside of the stirring tank 1, the hollow partition plate 7 can be first disassembled and taken out for cleaning, thereby improving the cleaning efficiency of the device and the practicability of the device.

[0030] Specifically, the stirring tank 1 is provided with a manhole 15 at the top. Workers enter the stirring tank 1 through the manhole 15 at the top of the stirring tank 1 to install fittings or perform cleaning work inside the stirring tank 1.

[0031] Specifically, the stirring tank 1 is provided with a pressure gauge 16 at the top. The pressure inside the tank is monitored through the pressure gauge 16 at the top of the stirring tank 1 to ensure safety and stability during stirring.

[0032] Specifically, the stirring tank 1 is provided with a support leg 17 at the bottom, and the support leg 17 is provided with a roller 18 at the bottom. The support leg 17 at the bottom of the stirring tank 1 improves the stability of the stirring tank 1, and the roller 18 at the bottom of the support leg 17 facilitates the movement of the stirring tank 1.

[0033] Example 2

[0034] Please refer to the attached drawings Figures 3-4 The difference between the present embodiment and example 1 is that the stirring tank 1 is provided with a baffle 19 perpendicular to the hollow partition plate 7 above the hollow partition plate 7 at the top, and the bottom of the baffle 19 and the top of the hollow partition plate 7 leave a space for liquid to pass through. By setting a baffle 19 perpendicular to the hollow partition plate 7 above the hollow partition plate 7, the space inside the tank on the hollow partition plate 7 is divided into a trapping cavity and a flow guiding cavity. The part with the feed inlet 4 is the trapping cavity, which is used to trap the liquid entering the tank, increase the time of the liquid staying on the hollow partition plate 7, and improve the preheating efficiency of the liquid on the hollow partition plate 7. The space left by the bottom of the baffle 19 and the top of the hollow partition plate 7 guides the preheated liquid to the flow guiding cavity, and the liquid flows into the bottom of the stirring tank 1 through the sleeve 10 on the hollow partition plate 7 in the flow guiding cavity for heating and mixing.

[0035] The above merely illustrates the specific implementation manners of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. The protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A magnetic stir jar, characterized by, The utility model provides a stirring tank and a jacket, the outer side of the stirring tank is wrapped by the jacket from the lower end, and the lower end of the stirring tank is provided with a discharge port, the top end of the stirring tank is provided with a feeding port, the outer side of the jacket is provided with a first air inlet pipe and a first air outlet pipe on the same horizontal plane, a hollow partition is installed above the jacket in the stirring tank, the side wall of the hollow partition is provided with a second air inlet pipe and a second air outlet pipe on the same horizontal plane, the second air inlet pipe and the second air outlet pipe pass through the stirring tank, the first air outlet pipe and the second air inlet pipe are connected through flanges, a vertical through hole is arranged on the side of the hollow partition away from the feeding port, a sleeve pipe is installed in the through hole, an asynchronous motor is installed at the bottom of the stirring tank, the output end of the asynchronous motor is connected with a stirring shaft, a magnet driving block is connected on the stirring shaft, and a magnetic stirrer matched with the magnet driving block is installed on the inner wall of the stirring tank.

2. The magnetic stirrer jar of claim 1, wherein, The lower part of the stirring tank is provided with a liquid level meter.

3. The magnetic stirrer jar of claim 1, wherein, The inner side wall of the stirring tank is provided with an annular limiting piece at the bottom of the hollow partition, and the hollow partition, the second air inlet pipe and the second air outlet pipe are screw-connected.

4. The magnetic stirrer jar of claim 1, wherein, A manhole is arranged at the top of the stirring tank.

5. The magnetic stirrer jar of claim 1, wherein, A pressure gauge is arranged at the top of the stirring tank.

6. The magnetic stirrer jar of claim 1, wherein, Supporting legs are arranged at the bottom of the stirring tank, and rollers are arranged at the bottom of the supporting legs.

7. The magnetic stirrer jar of claim 1, wherein, A baffle plate perpendicular to the hollow partition is arranged above the hollow partition at the top of the stirring tank, and a space for liquid to pass through is left between the bottom of the baffle plate and the top of the hollow partition.

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