CN212348567U - Magnetic stirring device for sealed cavity - Google Patents
Magnetic stirring device for sealed cavity Download PDFInfo
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- CN212348567U CN212348567U CN202020114842.0U CN202020114842U CN212348567U CN 212348567 U CN212348567 U CN 212348567U CN 202020114842 U CN202020114842 U CN 202020114842U CN 212348567 U CN212348567 U CN 212348567U
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Abstract
The utility model discloses a magnetic stirring device for seal chamber utilizes magnetic field like nature to repel each other, and the principle that opposite sex was inhaled mutually provides stirring power for the homogeneous mixing of liquid in the seal chamber, and magnetic stirring device installs in seal chamber's top, include: the device is used for providing power for the magnetic stirring device, the external magnetic coupling device is arranged in the sealed cavity, and the stirring part is connected with the magnetic coupling device and is used for deeply stirring liquid in the sealed cavity. The beneficial effects of adopting the technical scheme are that: the pollution problem of the stirring device to the stirring environment and the disassembly convenience of the magnetic coupling device are fully considered, so that the inner magnetic sleeve and the outer magnetic sleeve are both designed to be detachable, the device is pollution-free, simple in structure, convenient to disassemble, low in later maintenance cost and important in economic value and practical significance.
Description
Technical Field
The utility model relates to a stirring equipment, concretely relates to a magnetic stirring device for seal chamber.
Background
The stirring device plays an important role in accelerating the uniform mixing of liquid substances and the heat conduction to balance in the aspects of fluid mixing and heat conduction, and has the body shadow of various stirring devices in the aspects of human daily life and various industries.
The types and requirements of the stirring devices are closely related to the application fields and places, particularly the application requirements of the fields of chemical engineering, biological medicine and the like are the most strict, and by taking the pharmaceutical industry as an example, most of the stirring devices of the reaction tank equipment used by domestic pharmaceutical enterprises are mechanical stirring devices and lower magnetic stirring devices, and the mechanical stirring devices have graphite sealing and falling off when running for a long time, so that the pollution risk is caused to the liquid medicine in the equipment; and magnetic stirring device down, because of mostly select for use the agitator motor and the device of import, lead to the high enterprise of equipment cost, the maintenance difficulty, accessories is arrived the good cycle length, and magnetic stirring device is not ideal to the partial liquid stirring effect that is close to the bottom down, in addition, though there are some magnetic stirrers that are used for the top installation to use on the market, but complicated because of magnetic coupling part structure, there is the later stage to disassemble the difficulty, the higher problem of maintenance cost, therefore, this technical field needs a simple structure, the convenient dismantlement of magnetic coupling part, the lower overhead type magnetic stirring device of later stage maintenance cost, especially, it is more suitable for to the higher seal chamber of stirring environment requirement.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a simple structure, the convenient dismantlement of magnetic coupling part, the later maintenance cost is lower, and can not produce the overhead type magnetic stirring device who pollutes to stirring liquid.
In order to achieve the above purpose, the technical solution of the present invention is as follows:
the utility model provides a magnetic stirring device for seal chamber, utilizes the principle that like poles repel each other in the magnetic field, and opposite poles attract, does the homogeneous mixing of liquid provides stirring power in the seal chamber, magnetic stirring device install in seal chamber's top includes: the power device is arranged outside the sealed cavity in an axial vertical mode and provides power for the magnetic stirring device; the magnetic coupling device is arranged outside the sealed cavity and comprises an outer magnetic sleeve, an inner magnetic sleeve, a separation cover, a transmission shaft assembly and a support assembly, the outer magnetic sleeve is divided into two symmetrical half sleeve bodies and an outer magnetic ring, annular grooves for placing the outer magnetic ring are formed in the lower portion, close to the bottom end, of the inner side of each half sleeve body, the two half sleeve bodies clamp the outer magnetic ring into the annular grooves and then buckle the outer magnetic ring in a face-to-face mode, the two half sleeve bodies are fastened and connected through connecting pieces to form an integral outer magnetic sleeve, the upper end of the outer magnetic sleeve is a connecting portion and is connected with the power device, the inner magnetic sleeve is divided into an inner magnetic sleeve upper section, an inner magnetic sleeve lower section and an inner magnetic ring, concave platforms capable of placing the inner magnetic ring are arranged on the outer portion of the joint face of the inner magnetic sleeve upper section and the inner magnetic sleeve lower section, the inner magnetic sleeve upper, the inner magnetic sleeve is connected with the transmission shaft assembly through the inner surface, the inner magnetic sleeve and the outer magnetic sleeve are coaxially arranged and are separated by an isolation cover, the isolation cover is fixedly connected with the transmission shaft assembly and is jointly arranged in the support assembly, and further forms a full-sealing structure with the sealing cavity, and the other end of the transmission shaft assembly is inserted into the sealing cavity through a through hole formed in the top of the sealing cavity; and the stirring part is arranged in the sealed cavity, is connected with the transmission shaft assembly of the magnetic coupling device and is used for deeply stirring the liquid in the sealed cavity.
Compared with the traditional stirring device, the beneficial effects of the technical scheme are that: the problem of pollution of the sealing of the stirring device to the stirring environment is considered in the design, and the disassembly convenience of the magnetic coupling device is also considered, so that the inner magnetic sleeve and the outer magnetic sleeve in the technical scheme are both designed to be detachable, the structure is simple, the disassembly is convenient, the later maintenance cost is low, and the stirring liquid cannot be polluted.
As a further improvement of the utility model, the transmission shaft assembly comprises a transmission shaft and a shaft sleeve, the one end that the transmission shaft is connected with the inner magnetic sleeve is equipped with the external screw thread for the installation fastening the fastener of the inner magnetic sleeve.
The beneficial effect of adopting above-mentioned technical scheme is: the inner magnetic sleeve and the transmission shaft are fixedly connected and connected with each other in a fixed mode in the circumferential direction in a key mode, the end portion of the inner magnetic sleeve is further assisted with a threaded fastener to be axially fixed, and therefore the inner magnetic sleeve is more comprehensive in fixation and stronger in reliability and is particularly important for the inner magnetic sleeve which always rotates.
As a further improvement, the supporting component includes supporting component and lower supporting component, it is used for supporting to go up the supporting component outer magnetic sleeve among power device and the magnetic coupling device, the lower supporting component lower extreme is sealed to be fixed in the seal chamber top surface is used for supporting component, inner magnetic sleeve, cage and transmission shaft subassembly.
The beneficial effect of adopting above-mentioned technical scheme is: the split design of the supporting component not only facilitates the disassembly and assembly of the power device, but also is beneficial to creating good conditions for the assembly of the internal structure, and particularly under the isolation of the isolation cover, the lower supporting component and the sealing cavity can form an independent sealing environment.
As a further improvement of the present invention, the stirring section includes: the stirring rod is divided into an upper end part and a lower end part, and the upper end part is connected with the lower end of a transmission shaft of the magnetic coupling device through a coupler to play a role in connection and support; and the stirring impeller is provided with a plurality of blades which are uniformly arranged along the circumferential direction, and the blades are connected with the lower end part of the stirring rod and driven by the stirring rod to perform stirring action.
The beneficial effect of adopting above-mentioned technical scheme is: the puddler has not only solved the transmission shaft overlength on the one hand as transmission shaft and impeller's connecting rod in the puddler, to the too high problem of installation space, has still solved the inconvenient problem of puddler installation in seal chamber inside limited space, and on the other hand has effectively reduced later stage maintenance replacement cost.
As a further improvement, the stirring rod is a telescopic rod, according to the height of the sealing cavity and the height of the liquid level in the cavity are adjusted by the length of the stirring rod.
The beneficial effect of adopting above-mentioned technical scheme is: the scalability of the stirring rod can widen the application range of the stirring part, is not limited to be only suitable for a sealing cavity with a certain fixed height, and reduces various series specifications of the stirring rod caused by different lengths.
As a further improvement of the present invention, the stirring impeller includes a connecting rod and is fixed to a curved plate on the connecting rod, the curved plate is adjusted according to the liquid concentration and the viscosity at an angle formed by the stirring impeller in the axial direction.
The beneficial effect of adopting above-mentioned technical scheme is: the angle of the curved plate in the stirring impeller is adjustable, so that the stirring capacity and the strain capacity of the magnetic stirring device can be effectively enhanced, and the stirring impeller is suitable for stirring liquids with different properties.
As a further improvement of the present invention, the stirring impeller is a multi-row impeller, and two adjacent rows of blades of the stirring impeller are not overlapped along the axial projection.
The beneficial effect of adopting above-mentioned technical scheme is: the setting of multirow impeller can effectively widen impeller's stirring region, has strengthened stirring effect greatly, and the setting that upper and lower impeller installation angle staggers has further increased the non-synchronism of upper and lower regional liquid stirring, and stirring effect is better.
As a further improvement, the blade is divided into a head end connected to the rotation center, a middle section and a tail end, and the head end, the middle section and the tail end are respectively provided with a density sensor for detecting the uniformity of different positions in real time.
The beneficial effect of adopting above-mentioned technical scheme is: the density sensor is arranged on the stirring impeller, so that the stirring effect of the magnetic stirring device can be mastered in real time, the required time for stirring the liquid to be uniform can be calculated accordingly, the uniformity difference of different positions can be calculated, and the improvement direction and the basis can be provided for the further optimization of the stirring impeller.
As the utility model discloses a further improvement again, power device is furnished with the converter, works as liquid concentration is different with viscosity in the sealed cavity, through the converter adjustment power device's rotational speed to adapt to the needs of different liquid to stirring speed.
The beneficial effect of adopting above-mentioned technical scheme is: after the power device is provided with the frequency converter, the power output is more flexible, the frequency can be adjusted according to the actual requirement, and the power device is more energy-saving than a fixed frequency power device and has higher economic value.
As the utility model discloses a further improvement again, the access & exit of seal chamber body liquid is equipped with electric control valve respectively, and magnetic stirring device still includes: the control unit receives density signals from density sensors at different positions in real time, and issues start-stop or frequency adjustment instructions to the power device or switch instructions to the electric control valve according to the received signals; and the control lead is used for connecting the control unit, the density sensor, the power device frequency converter and the electric control valve.
The beneficial effect of adopting above-mentioned technical scheme is: the introduction of the control unit effectively improves the automation level of the magnetic stirring device, and although the purchase cost of initial investment is increased, in the long run, the improvement of the automation level reduces manual configuration, labor cost and manual control unreliability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of the magnetic stirring apparatus of the present invention, which is shown in fig. 1.
Fig. 2 is a schematic structural view of the magnetic coupling device of the present invention.
Fig. 3 is a schematic structural view of the stirring part of the present invention.
Fig. 4 is a schematic view of the magnetic stirring apparatus of the present invention in operation 2.
The corresponding component names represented by numbers and letters in the figures are as follows:
a power plant 1; a magnetic coupling device 2; an outer magnetic sleeve 21; a first half-cap body 211; a second half 212; an outer magnetic ring 213; an inner magnetic sleeve 22; an inner magnetic sleeve upper section 221; an inner magnetic sleeve lower section 222; an inner ring magnetic ring 223; a shielding cover 23; a driveshaft assembly 24; a drive shaft 241; a sleeve 242; a fastener 243; a support assembly 25; an upper support assembly 251; a lower support assembly 252; a stirring section 3; a stirring rod 31; a telescopic stirring rod 31 a; a stirring impeller 32; the blades 321; the rotating curved blades 321 a; (blade) start 3211; (blade) midsection 3212; (blade) end 3213; a density sensor 3214; a connecting rod 322; sealing the cavity 4; the electric control valve 41; a control unit 5; a control conductor 6.
Detailed Description
To facilitate understanding of the present invention, the present invention will be described more fully and specifically with reference to the accompanying drawings and preferred embodiments, but the scope of the present invention is not limited to the specific embodiments described below. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In order to realize the utility model discloses a purpose, the utility model provides a technical scheme does:
as shown in fig. 1, a magnetic stirring apparatus for a sealed chamber 4, which utilizes the principle that like magnetic fields repel each other and opposite magnetic fields attract each other, provides stirring power for the uniform mixing of liquid in the sealed chamber 4, and is installed at the top of the sealed chamber 4, and comprises: the power device 1 is arranged outside the sealed cavity 4 in an axial vertical mode and provides power for the magnetic stirring device; the magnetic coupling device 2 is arranged outside the sealed cavity 4 and comprises an outer magnetic sleeve 21, an inner magnetic sleeve 22, a separation cover 23, a transmission shaft assembly 24 and a support assembly 25, the outer magnetic sleeve 21 is divided into a first half sleeve body 211, a second half sleeve body 212 and an outer magnetic ring 213, the first half sleeve body 211 and the second half sleeve body 212 are symmetrical, the lower parts of the inner sides, which are close to the bottom end, are respectively provided with an annular groove for placing the outer magnetic ring 213, the first half sleeve body 211 and the second half sleeve body 212 clamp the outer magnetic ring 213 into the annular groove and then buckle the outer magnetic ring 213 oppositely and are fixedly connected through a connecting piece to form an integral outer magnetic sleeve 21, the upper end of the outer magnetic sleeve 21 is a connecting part and is connected with the power device 1, the inner magnetic sleeve 22 is divided into an inner magnetic sleeve upper section 221, an inner magnetic sleeve lower section 222 and an inner magnetic ring 223, a concave platform capable of placing the inner magnetic ring 223 is arranged outside, the inner magnetic sleeve upper section 221 and the inner magnetic sleeve lower section 222 are respectively inserted into the inner ring magnetic ring 223 from two ends and are fastened and connected through a connecting piece to form an integral inner magnetic sleeve, the inner magnetic sleeve 22 is connected with the transmission shaft assembly 24 through the inner surface, the inner magnetic sleeve 22 and the outer magnetic sleeve 21 are coaxially arranged and are separated through the isolation cover 23, the isolation cover 23 is fixedly connected with the transmission shaft assembly 24 and is jointly arranged in the support assembly 25 to form a full-sealing structure with the seal cavity 4, and the other end of the transmission shaft assembly 24 is inserted into the seal cavity 4 through a through hole formed in the top of the seal cavity 4; and the stirring part 3 is arranged inside the sealed cavity 4, is connected with the transmission shaft assembly 24 of the magnetic coupling device 2 and is used for deeply penetrating and stirring the liquid in the sealed cavity 4.
Compared with the traditional stirring device, the beneficial effects of the technical scheme are that: the problem of pollution of the sealing of the stirring device to the stirring environment is considered in the design, and the disassembly convenience of the magnetic coupling device is also considered, so that the inner magnetic sleeve and the outer magnetic sleeve in the technical scheme are both designed to be detachable, the structure is simple, the disassembly is convenient, the later maintenance cost is low, and the stirring liquid cannot be polluted.
In other embodiments of the present invention, as shown in fig. 2, the transmission shaft assembly 24 includes a transmission shaft 241 and a sleeve 242, and the end of the transmission shaft 241 connected to the inner magnetic sleeve 22 is provided with an external thread for installing a fastener 243 for fastening the inner magnetic sleeve.
The beneficial effect of adopting above-mentioned technical scheme is: the inner magnetic sleeve and the transmission shaft are fixedly connected and connected with each other in a fixed mode in the circumferential direction in a key mode, the end portion of the inner magnetic sleeve is further assisted with a threaded fastener to be axially fixed, and therefore the inner magnetic sleeve is more comprehensive in fixation and stronger in reliability and is particularly important for the inner magnetic sleeve which always rotates.
In other embodiments of the present invention, as also shown in fig. 2, the supporting component 25 includes an upper supporting component 251 and a lower supporting component 252, the upper supporting component 251 is used to support the outer magnetic sleeve 21 in the power device 1 and the magnetic coupling device, and the lower end of the lower supporting component 252 is fixed on the top surface of the seal chamber 4 in a sealing manner, so as to support the upper supporting component 251, the inner magnetic sleeve 22, the isolation cover 23 and the transmission shaft component 24.
The beneficial effect of adopting above-mentioned technical scheme is: the split design of the supporting component not only facilitates the disassembly and assembly of the power device, but also is beneficial to creating good conditions for the assembly of the internal structure, and particularly under the isolation of the isolation cover, the lower supporting component and the sealing cavity can form an independent sealing environment.
In another embodiment of the present invention, as shown in fig. 3, the stirring section 3 includes: the stirring rod 31 is divided into an upper end part and a lower end part, and the upper end part is connected with the lower end of a transmission shaft 241 of the magnetic coupling device through a coupler to play a role in connection and support; the stirring impeller 32 is provided with a plurality of blades 321 uniformly arranged along the circumferential direction, and is connected with the lower end part of the stirring rod 31 along the circumferential direction, and is driven by the stirring rod 31 to perform a stirring action.
The beneficial effect of adopting above-mentioned technical scheme is: the puddler has not only solved the transmission shaft overlength on the one hand as transmission shaft and impeller's connecting rod in the puddler, to the too high problem of installation space, has still solved the inconvenient problem of puddler installation in seal chamber inside limited space, and on the other hand has effectively reduced later stage maintenance replacement cost.
Referring also to fig. 3, in other embodiments of the present invention, the stirring rod 31a is a telescopic rod, and the length of the stirring rod 31a is adjusted according to the height of the sealed cavity 4 and the liquid level in the cavity.
The beneficial effect of adopting above-mentioned technical scheme is: the scalability of the stirring rod can widen the application range of the stirring part, is not limited to be only suitable for a sealing cavity with a certain fixed height, and reduces various series specifications of the stirring rod caused by different lengths.
In other embodiments of the present invention, as also shown in fig. 3, the stirring impeller 32 includes a connecting rod 322 and a curved plate blade 321a fixed on the connecting rod, and the angle formed by the curved plate blade 321a and the stirring impeller 32 is adjusted according to the liquid concentration and the viscosity.
The beneficial effect of adopting above-mentioned technical scheme is: the angle of the curved plate in the stirring impeller is adjustable, so that the stirring capacity and the strain capacity of the magnetic stirring device can be effectively enhanced, and the stirring impeller is suitable for stirring liquids with different properties.
In other embodiments of the present invention, as shown in fig. 3, the stirring impellers 32 are multi-row impellers, and the blades 321 of two adjacent rows of stirring impellers do not overlap in axial projection.
The beneficial effect of adopting above-mentioned technical scheme is: the setting of multirow impeller can effectively widen impeller's stirring region, has strengthened stirring effect greatly, and the setting that upper and lower impeller installation angle staggers has further increased the non-synchronism of upper and lower regional liquid stirring, and stirring effect is better.
In other embodiments of the present invention, as shown in fig. 3, the blade 321 is divided into a start 3211, a middle 3212 and a tail 3213 connected to the rotation center, and the start 3211, the middle 3212 and the tail 3213 are respectively provided with a density sensor 3214 for detecting the uniformity of different positions in real time.
The beneficial effect of adopting above-mentioned technical scheme is: the density sensor is arranged on the stirring impeller, so that the stirring effect of the magnetic stirring device can be mastered in real time, the required time for stirring the liquid to be uniform can be calculated accordingly, the uniformity difference of different positions can be calculated, and the improvement direction and the basis can be provided for the further optimization of the stirring impeller.
In other embodiments of the present invention, as shown in fig. 4, the power device 1 is equipped with a frequency converter, and when the liquid concentration and the viscosity in the seal chamber 4 are different, the rotating speed of the power device 1 is adjusted by the frequency converter to meet the requirements of different liquids on the stirring speed.
The beneficial effect of adopting above-mentioned technical scheme is: after the power device is provided with the frequency converter, the power output is more flexible, the frequency can be adjusted according to the actual requirement, and the power device is more energy-saving than a fixed frequency power device and has higher economic value.
In other embodiments of the present invention, as also shown in fig. 3, the inlet and outlet of the liquid in the sealed chamber 4 are respectively provided with an electric control valve 41, and the magnetic stirring apparatus further includes: the control unit 5 receives density signals from the density sensors 3214 at different positions in real time, and issues start-stop or frequency adjustment instructions to the power device 1 or switch instructions to the electric control valve 41 according to the received signals; and the control lead 6 is used for connecting the control unit 5, the density sensor 3214, the frequency converter of the power device 1 and the electric control valve 41.
The beneficial effect of adopting above-mentioned technical scheme is: the introduction of the control unit effectively improves the automation level of the magnetic stirring device, and although the purchase cost of initial investment is increased, in the long run, the improvement of the automation level reduces manual configuration, labor cost and manual control unreliability.
The above embodiments are only for illustrating the technical conception and the features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and the protection scope of the present invention can not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.
Claims (10)
1. A magnetic stirring device for a sealed chamber, wherein the magnetic stirring device is mounted on the top of the sealed chamber, comprising:
the power device is arranged outside the sealed cavity in an axial vertical mode and provides power for the magnetic stirring device;
the magnetic coupling device is arranged outside the sealed cavity and comprises an outer magnetic sleeve, an inner magnetic sleeve, a separation cover, a transmission shaft assembly and a support assembly, the outer magnetic sleeve is divided into two symmetrical half sleeve bodies and an outer magnetic ring, annular grooves for placing the outer magnetic ring are formed in the lower portion, close to the bottom end, of the inner side of each half sleeve body, the two half sleeve bodies clamp the outer magnetic ring into the annular grooves and then buckle the outer magnetic ring in a face-to-face mode, the two half sleeve bodies are fastened and connected through connecting pieces to form an integral outer magnetic sleeve, the upper end of the outer magnetic sleeve is a connecting portion and is connected with the power device, the inner magnetic sleeve is divided into an inner magnetic sleeve upper section, an inner magnetic sleeve lower section and an inner magnetic ring, concave platforms capable of placing the inner magnetic ring are arranged on the outer portion of the joint face of the inner magnetic sleeve upper section and the inner magnetic sleeve lower section, the inner magnetic sleeve upper, the inner magnetic sleeve is connected with the transmission shaft assembly through the inner surface, the inner magnetic sleeve and the outer magnetic sleeve are coaxially arranged and are separated by an isolation cover, the isolation cover is fixedly connected with the transmission shaft assembly and is jointly arranged in the support assembly, and further forms a full-sealing structure with the sealing cavity, and the other end of the transmission shaft assembly is inserted into the sealing cavity through a through hole formed in the top of the sealing cavity;
and the stirring part is arranged in the sealed cavity, is connected with the transmission shaft assembly of the magnetic coupling device and is used for deeply stirring the liquid in the sealed cavity.
2. The magnetic stirring device for sealing the cavity of claim 1, wherein the transmission shaft assembly comprises a transmission shaft and a shaft sleeve, and the end of the transmission shaft connected with the inner magnetic sleeve is provided with an external thread for installing a fastener for fastening the inner magnetic sleeve.
3. The magnetic stirring apparatus as claimed in claim 2, wherein the support assembly comprises an upper support assembly and a lower support assembly, the upper support assembly is used for supporting the outer sleeve of the power device and the magnetic coupling device, and the lower support assembly is fixed to the top surface of the sealed chamber in a sealing manner and is used for supporting the upper support assembly, the inner sleeve, the isolation cover and the transmission shaft assembly.
4. The magnetic stirring device for a sealed cavity of claim 1, wherein the stirring portion comprises:
the stirring rod is divided into an upper end part and a lower end part, and the upper end part is connected with the lower end of a transmission shaft of the magnetic coupling device through a coupler to play a role in connection and support;
and the stirring impeller is provided with a plurality of blades which are uniformly arranged along the circumferential direction, and the blades are connected with the lower end part of the stirring rod and driven by the stirring rod to perform stirring action.
5. The magnetic stirring device for a sealed cavity of claim 4, wherein the stirring rod is a telescopic rod, and the length of the stirring rod is adjusted according to the height of the sealed cavity and the liquid level in the cavity.
6. The magnetic stirring device for sealed cavity of claim 4, wherein the stirring impeller comprises a connecting rod and a curved plate fixed on the connecting rod, and the angle between the curved plate and the stirring impeller in the axial direction is adjusted according to the liquid concentration and viscosity.
7. The magnetic stirring device for the sealed cavity of claim 6, wherein the stirring impellers are multiple rows of impellers, and the blades of two adjacent rows of the stirring impellers do not overlap in axial projection.
8. The magnetic stirring apparatus as claimed in claim 7, wherein the blade is divided into a beginning portion, a middle portion and an end portion connected to the rotation center, and the beginning portion, the middle portion and the end portion are respectively provided with a density sensor for detecting the uniformity of different positions in real time.
9. A magnetic stirring apparatus as claimed in claim 1 wherein the power device is equipped with a frequency converter, and when the concentration and viscosity of the liquid in the sealed cavity are different, the rotation speed of the power device is adjusted by the frequency converter to meet the stirring speed requirement of different liquids.
10. A magnetic stirring device for a sealed chamber as claimed in any one of claims 1 to 9, wherein the inlet and outlet of the liquid in the sealed chamber are respectively provided with an electrically controlled valve, and the magnetic stirring device further comprises:
the control unit receives density signals from density sensors at different positions in real time, and issues start-stop or frequency adjustment instructions to the power device or switch instructions to the electric control valve according to the received signals;
and the control lead is used for connecting the control unit, the density sensor, the power device frequency converter and the electric control valve.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020114842.0U CN212348567U (en) | 2020-01-17 | 2020-01-17 | Magnetic stirring device for sealed cavity |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020114842.0U CN212348567U (en) | 2020-01-17 | 2020-01-17 | Magnetic stirring device for sealed cavity |
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| CN212348567U true CN212348567U (en) | 2021-01-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113332872A (en) * | 2021-06-23 | 2021-09-03 | 周玉婷 | Intelligent speed adjusting device for stirring different metallurgical materials |
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2020
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113332872A (en) * | 2021-06-23 | 2021-09-03 | 周玉婷 | Intelligent speed adjusting device for stirring different metallurgical materials |
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