CN214974718U - Freezing subassembly, grinding subassembly and ultra-low temperature grinding appearance - Google Patents
Freezing subassembly, grinding subassembly and ultra-low temperature grinding appearance Download PDFInfo
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- CN214974718U CN214974718U CN202120586771.9U CN202120586771U CN214974718U CN 214974718 U CN214974718 U CN 214974718U CN 202120586771 U CN202120586771 U CN 202120586771U CN 214974718 U CN214974718 U CN 214974718U
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Abstract
The application provides a freezing subassembly, grinding assembly and ultra-low temperature grinding appearance. The freezing component comprises a working cavity, wherein ultralow temperature cold liquid is contained in the working cavity; an inlet and an outlet are arranged on the side wall of the working cavity; the feed liquor spare, with the import intercommunication, to the work intracavity input the cold liquid of ultra-low temperature makes the work intracavity the cold liquid of ultra-low temperature maintains and predetermines the liquid level height. Adopt the feed liquor spare to supply the ultra-low temperature cold liquid in the work chamber to ensure that the ultra-low temperature cold liquid in the work chamber is in predetermined liquid level height all the time, thereby can effectively guarantee grinding such as grinding jar in the ultra-low temperature cold liquid, ensured the nature of grinding the sample.
Description
Technical Field
The application belongs to the technical field of grinding equipment, concretely relates to freezing subassembly, grinding assembly and ultra-low temperature grinding appearance.
Background
An ultralow temperature grinding device is a pretreatment device for preparing laboratory solid samples, and is mainly applied to the fields of biochemistry, medicine and chemical industry; the device is used for grinding, crushing, mixing and homogenizing a sample in an ultralow temperature environment; applicable samples are as follows:
1. heat-sensitive samples which are easy to denature, volatilize, degrade and inactivate at normal temperature and high temperature (the temperature of the sample is increased by grinding work), and the like, and need to retain biological activity, biological structure and composition information (DNA \ RNA);
2. the sample with toughness and elasticity at normal temperature can increase the brittleness at low temperature, so that the sample is easy to crush, mix and homogenize.
In the prior art, a grinding mechanism for grinding by using an electromagnetic impactor is adopted, and the electromagnetic impactor is used for driving the impactor to impact a sample in a grinding tank in a reciprocating manner so as to thoroughly grind the sample; in order to ensure that the grinding process is in an ultralow temperature state, the whole grinding tank is arranged in a liquid nitrogen tank. However, the grinding tank generates heat in the grinding process, and the liquid nitrogen which is extremely easy to volatilize is consumed quickly or forms a large amount of gaseous nitrogen by combining the operation of opening the liquid nitrogen tank, so that the grinding tank is difficult to be always in the liquid nitrogen in the grinding process, and the quality of a grinding sample is influenced. In addition, liquid nitrogen is extremely low-temperature liquid and can be boiled and splashed when being heated, so that the cover opening operation is dangerous; the lid again forms a black box and it is not known what is happening inside, e.g. insufficient liquid nitrogen, presence or absence of complete immersion of the sample, etc.
SUMMERY OF THE UTILITY MODEL
Therefore, the technical problem that this application will be solved lies in providing a freezing subassembly, grinding subassembly and ultra-low temperature grinding appearance, can provide the liquid nitrogen environment continuously, ensures that the grinding process is in the ultra-low temperature environment all the time.
In order to solve the above problems, the present application provides a refrigerating assembly comprising:
the working cavity is filled with ultralow temperature cooling liquid; an inlet and an outlet are arranged on the side wall of the working cavity;
the feed liquor spare, with the import intercommunication, to the work intracavity input the cold liquid of ultra-low temperature makes the work intracavity the cold liquid of ultra-low temperature maintains and predetermines the liquid level height.
Optionally, a liquid level meter is arranged in the working cavity and used for measuring the liquid level of the ultralow-temperature cold liquid.
Optionally, the freezing assembly further comprises a liquid reservoir, and the ultralow-temperature cold liquid is stored in the liquid reservoir; the liquid storage device is communicated with the inlet of the liquid inlet piece.
Optionally, the wall body of the working cavity comprises a box body and a sealing cover, and the sealing cover is hinged and fastened on the box body in a sealing manner; the side wall of the box body is provided with the inlet and the outlet.
Optionally, a human-computer interaction interface is arranged on the sealing cover and hinged to the sealing cover, and is used for displaying the liquid level height and controlling the operation of the liquid inlet piece.
According to another aspect of the present application, there is provided an abrasive assembly comprising a refrigeration assembly as described above.
Optionally, the grinding assembly further comprises a grinding tank, wherein the grinding tank is arranged in the working cavity and is located in the ultralow-temperature cold liquid.
Optionally, the outlet is provided with a pressure limiting valve, and the pressure limiting valve is opened when the pressure in the working chamber is greater than a preset pressure.
Optionally, the working chamber comprises a box and a sealing cover, and the grinding tank is arranged on the bottom surface of the sealing cover.
According to yet another aspect of the present application, there is provided an ultra-low temperature milling apparatus comprising a freezing assembly as described above or a milling assembly as described above.
The present application provides a refrigeration assembly comprising: the working cavity is filled with ultralow temperature cooling liquid; an inlet and an outlet are arranged on the side wall of the working cavity; the feed liquor spare, with the import intercommunication, to the work intracavity input the cold liquid of ultra-low temperature makes the work intracavity the cold liquid of ultra-low temperature maintains and predetermines the liquid level height. Adopt the feed liquor spare to supply the ultra-low temperature cold liquid in the work chamber to ensure that the ultra-low temperature cold liquid in the work chamber is in predetermined liquid level height all the time, thereby can effectively guarantee grinding such as grinding jar in the ultra-low temperature cold liquid, ensured the nature of grinding the sample.
Drawings
FIG. 1 is a schematic structural view of a refrigeration assembly according to an embodiment of the present application;
fig. 2 is a schematic structural view of an ultra-low temperature grinding apparatus according to an embodiment of the present application.
The reference numerals are represented as:
1. a box body; 11. a working chamber; 12. a sealing cover; 13. a liquid level meter; 14. a human-computer interaction interface; 15. a grinding tank; 2. a liquid inlet part; 3. a reservoir.
Detailed Description
Referring collectively to fig. 1-2, in accordance with an embodiment of the present application, a refrigeration assembly includes:
the working cavity 11 is filled with ultralow temperature cooling liquid; an inlet and an outlet are arranged on the side wall of the working cavity 11;
feed liquor spare 2, with import intercommunication, to input in the working chamber 11 the cold liquid of ultra-low temperature makes in the working chamber 11 the cold liquid of ultra-low temperature maintains and predetermines the liquid level height.
The traditional working cavity 11 containing ultralow-temperature cold liquid, such as a liquid nitrogen tank, is mostly of a single-opening structure, and when the liquid nitrogen tank is used, an article to be frozen is placed in the liquid nitrogen tank after the liquid nitrogen tank is opened; at the moment, the liquid nitrogen tank is in a room temperature environment, and the liquid nitrogen is easily converted into a gaseous state, so that the amount of the liquid nitrogen is reduced; particularly, when the article is a heating element, the liquid nitrogen conversion speed is high, and the article is difficult to maintain in a liquid nitrogen solution for a long time.
The liquid inlet piece 2 is arranged, so that the liquid level height of the ultralow-temperature cold liquid in the working cavity 11 can be maintained; when the ultra-low temperature cold liquid in the working chamber 11 is reduced to be lower than the preset liquid level height, the liquid inlet piece 2 inputs the ultra-low temperature cold liquid into the working chamber 11, so that the workpiece in the working chamber 11 can be always positioned below the liquid level of the ultra-low temperature cold liquid.
Wherein the liquid inlet part 2 comprises an automatic liquid inlet device, such as an automatic liquid nitrogen inlet device.
In some embodiments, a liquid level meter 13 is disposed in the working chamber 11 for measuring the liquid level of the ultra-low temperature cold liquid.
A liquid level meter 13 is arranged in the working cavity 11, so that the amount of the ultralow-temperature cold liquid in the working cavity 11 can be observed in time; or the liquid level of the ultralow-temperature cold liquid can be monitored through the electronic liquid level instrument 13, so that the operation of the liquid inlet piece 2 is conveniently controlled.
In some embodiments, the freezing assembly further comprises a liquid reservoir 3, wherein the liquid reservoir 3 stores the ultra-low temperature cold liquid; the liquid storage device 3 is communicated with an inlet of the liquid inlet part 2.
For the stability of the cold liquid of the ultra-low temperature of guaranteeing to input in the working chamber 11, communicate from pressure boost reservoir 3 at the entry of feed liquor spare 2 for the entry pressure of feed liquor spare 2 is comparatively stable, avoids causing great influence to the cold liquid of the ultra-low temperature in the working chamber 11.
In some embodiments, the wall of the working chamber 11 comprises a box 1 and a sealing cover 12, wherein the sealing cover 12 is hinged and sealed and buckled on the box 1; the side wall of the box body 1 is provided with the inlet and the outlet.
In some embodiments, a human-machine interface 14 is provided on the sealing cover 12, and the human-machine interface 14 is hinged on the sealing cover 12 and used for displaying the liquid level and controlling the operation of the liquid inlet part 2.
A man-machine interaction interface 14 is arranged on the sealing cover 12, and a rotating shaft is arranged in the man-machine interaction interface 14 and can freely rotate within a certain angle, so that users with different heights can operate conveniently; the main function is to control the grinding component to grind the sample, and automatically control the liquid inlet piece to supplement liquid nitrogen in time according to the liquid level height, so as to ensure that the sample is always in the liquid nitrogen during the grinding process; the liquid level position in the liquid nitrogen container can be displayed in real time in the operation interface, and whether the liquid nitrogen needs to be added or the liquid nitrogen stops being added is automatically judged according to the liquid nitrogen liquid level indicating device.
According to another aspect of the present application, there is provided an abrasive assembly comprising a refrigeration assembly as described above.
Set up above-mentioned freezing subassembly in the grinding subassembly, can handle the grinding under the ultra-low temperature condition, ensure to be in all the time among the grinding process and accomplish under the ultra-low temperature environment.
In some embodiments, the grinding assembly further comprises a grinding tank 15, wherein the grinding tank 15 is arranged in the working chamber 11 and is positioned in the ultra-low temperature cold liquid.
Set up grinding pot 15 in working chamber 11, grinding pot 15 is in the low temperature environment of the cold liquid of ultra-low temperature always for the heat that produces in the grinding process can in time be guided to the cold liquid of ultra-low temperature, ensures grinding material's nature.
In some embodiments, the outlet is provided with a pressure limiting valve which opens when the pressure inside said working chamber 11 is greater than a preset pressure.
The pressure limiting valve is arranged at the outlet, and when the pressure of ultra-low temperature cold liquid such as liquid nitrogen and the like in the working cavity 11 is higher after the ultra-low temperature cold liquid is gasified, the ultra-low temperature cold liquid can be discharged through the pressure limiting valve, so that the safety is improved, and the waste of the ultra-low temperature cold liquid is avoided.
In the actual structure, a pressure limiting valve is not needed, the pressure in the working cavity 11 rises after the liquid nitrogen is gasified, the liquid nitrogen is discharged from an outlet on the working cavity 11, the outlet is the only outlet of the liquid nitrogen when the instrument works, but the manual lock catch can be arranged on the upper cover without adopting valve control, and the upper cover is prevented from being pushed open after the pressure rises.
In some embodiments, the working chamber 11 comprises a box 1 and a sealing cover 12, and the grinding pot 15 is provided on the bottom surface of the sealing cover 12.
The grinding tank 15 is arranged on the bottom surface of the sealing cover 12, and when the sealing cover 12 is opened, the grinding tank 15 is moved out of the ultra-low temperature cold liquid, so that grinding materials can be conveniently added or taken out.
According to yet another aspect of the present application, there is provided an ultra-low temperature milling apparatus comprising a freezing assembly as described above or a milling assembly as described above.
The utility model provides an ultra-low temperature grinds appearance, including host computer, automatic liquid nitrogen device and liquid nitrogen container of advancing, the host computer includes box body 1, sealed lid 12, grinding pot 15, liquid level meter 13 and human-computer interface 14.
A rotatable touch type man-machine interaction interface 14 is arranged on the upper side of the sealing cover 12, a grinding tank 15 is arranged on the lower portion of the sealing cover 12, the sealing cover 12 is connected with the box body 1 through an integrated rotating shaft, and a low-temperature-resistant gas spring supporting rod can be further arranged inside the sealing cover 12 in order to reduce the operation difficulty of a user during operation; the sealing cover 12 can freely rotate above the box body 1 through the integrated rotating shaft to complete the opening and closing actions of the sealing cover 12; after the sealing cover 12 is closed, the upper and lower heat insulation structures are closed, and meanwhile, the heat insulation structures have a sealing function, so that a complete low-temperature working cavity 11 can be formed.
Grinding tanks 15 with different specifications can be placed in the working cavity 11, after the grinding tanks 15 are placed in the working cavity, the grinding tanks 15 can be fixed through a locking structure, and the locking baffle can tolerate the temperature of liquid nitrogen and is not loosened all the time in the grinding process; the interior of the grinding tank 15 is provided with a steel striker, the steel striker can be driven to move by an electromagnetic coil, and the sample can be crushed, mixed and homogenized through the striking.
The automatic liquid nitrogen inlet device can be arranged in the host; the control system realizes the automatic liquid feeding function by controlling the device; the standard is external, and is convenient to install and use compared with internal standard. In addition, the liquid nitrogen tank can output liquid nitrogen within a certain pressure range through the internal structure of the liquid nitrogen tank; the liquid nitrogen tank is a purchased part, is easy to buy in the market, and has various capacities and varieties.
It is easily understood by those skilled in the art that the above embodiments can be freely combined and superimposed without conflict.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.
Claims (10)
1. A refrigeration assembly, comprising:
the working cavity (11) is filled with ultralow temperature cold liquid; an inlet and an outlet are arranged on the side wall of the working cavity (11);
feed liquor spare (2), with import intercommunication, to input in working chamber (11) the cold liquid of ultra-low temperature makes in working chamber (11) the cold liquid of ultra-low temperature maintains and predetermines the liquid level height.
2. Refrigeration assembly according to claim 1, characterized in that a level gauge (13) is provided in the working chamber (11) for measuring the level of the ultra-low temperature cold liquid.
3. The freezer assembly according to claim 1 or 2, further comprising a reservoir (3), the reservoir (3) storing the ultra-low temperature cold liquid; the liquid storage device (3) is communicated with an inlet of the liquid inlet piece (2).
4. Refrigeration assembly according to claim 1, characterized in that the walls of the working chamber (11) comprise a box (1) and a sealing cover (12), the sealing cover (12) being hinged and sealingly fastened to the box (1); the side wall of the box body (1) is provided with the inlet and the outlet.
5. Refrigeration assembly according to claim 4, characterized in that a human-machine interface (14) is provided on the sealing cover (12), the human-machine interface (14) being hinged on the sealing cover (12) for displaying the liquid level and controlling the operation of the liquid inlet member (2).
6. An abrasive assembly comprising a refrigeration assembly according to any one of claims 1 to 5.
7. A grinding assembly according to claim 6, characterized in that it further comprises a grinding tank (15), said grinding tank (15) being arranged inside said working chamber (11) and being located in said ultra-low temperature cold liquid.
8. A grinding assembly according to claim 7, characterized in that the outlet is provided with a pressure-limiting valve which opens when the pressure in the working chamber (11) is greater than a preset pressure.
9. A grinding assembly according to claim 8, characterized in that the working chamber (11) comprises a box (1) and a sealing cover (12), the grinding pot (15) being provided on the bottom surface of the sealing cover (12).
10. An ultra-low temperature milling apparatus comprising a freezing assembly as claimed in any one of claims 1 to 5 or a milling assembly as claimed in any one of claims 6 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120586771.9U CN214974718U (en) | 2021-03-23 | 2021-03-23 | Freezing subassembly, grinding subassembly and ultra-low temperature grinding appearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120586771.9U CN214974718U (en) | 2021-03-23 | 2021-03-23 | Freezing subassembly, grinding subassembly and ultra-low temperature grinding appearance |
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| CN214974718U true CN214974718U (en) | 2021-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120586771.9U Active CN214974718U (en) | 2021-03-23 | 2021-03-23 | Freezing subassembly, grinding subassembly and ultra-low temperature grinding appearance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114798125A (en) * | 2022-04-18 | 2022-07-29 | 上海净信实业发展有限公司 | Vacuum freezing grinding device and method |
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2021
- 2021-03-23 CN CN202120586771.9U patent/CN214974718U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114798125A (en) * | 2022-04-18 | 2022-07-29 | 上海净信实业发展有限公司 | Vacuum freezing grinding device and method |
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