CN211875690U - Device convenient for measuring liquid nitrogen capacity - Google Patents
Device convenient for measuring liquid nitrogen capacity Download PDFInfo
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- CN211875690U CN211875690U CN201921372217.XU CN201921372217U CN211875690U CN 211875690 U CN211875690 U CN 211875690U CN 201921372217 U CN201921372217 U CN 201921372217U CN 211875690 U CN211875690 U CN 211875690U
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Abstract
The utility model provides a conveniently measure device of liquid nitrogen capacity, belongs to biological scientific research apparatus technical field, and the great technical problem of liquid nitrogen loss when solving liquid nitrogen capacity measurement, the solution is: the utility model provides a conveniently measure device of liquid nitrogen capacity, it includes holding vessel and measurement scale, wherein: the storage tank comprises a first storage tank and a second storage tank, the bottoms of the first storage tank and the second storage tank are communicated through a connecting pipeline, a first cover body is covered at the top opening position of the first storage tank, a second cover body is covered at the top opening position of the second storage tank, and a circular through hole is formed in the center of the second cover body; the inner diameter of the first storage tank is larger than that of the second storage tank, and the height of the second storage tank is not smaller than that of the first storage tank. The utility model has the advantages of simple structure, safe and convenient operation, etc.
Description
Technical Field
The utility model belongs to the technical field of biology scientific research apparatus, concretely relates to conveniently measure device of liquid nitrogen capacity.
Background
Temperature is a very important condition in scientific experiments, for example, some biological experiments need to be performed at 4 degrees, and some biological samples may need to be stored at-20 degrees, or-80 degrees. But liquid nitrogen is most commonly used in laboratories if lower temperatures are required. Under normal pressure, the temperature of liquid nitrogen is 196 ℃ below zero, which greatly facilitates the scientific research experiment. However, since the temperature of the liquid nitrogen is extremely low, the liquid nitrogen is not conducive to preservation at normal temperature and normal pressure, and particularly, the liquid nitrogen container needs to be opened every time the liquid nitrogen is used, which is more likely to cause loss of the liquid nitrogen.
In order to ensure the low temperature environment provided by liquid nitrogen, liquid nitrogen with sufficient capacity must be ensured, so that experimenters often need to know the capacity of the residual liquid nitrogen in the liquid nitrogen tank. At present, the liquid level height of liquid nitrogen is generally known according to the length of frosting on a scale which is directly inserted into the bottom of a liquid nitrogen tank. The method is simple and practical, but because the liquid nitrogen tank needs to be opened for measurement every time, the loss of the liquid nitrogen is increased, and especially when the indoor temperature is higher, the loss of the liquid nitrogen is more.
SUMMERY OF THE UTILITY MODEL
The method aims to overcome the defects in the prior art and solve the technical problem of large liquid nitrogen loss during liquid nitrogen capacity measurement.
The utility model discloses a following technical scheme realizes: the utility model provides a conveniently measure device of liquid nitrogen capacity, it includes holding vessel and measurement scale, wherein: the storage tank comprises a first storage tank and a second storage tank, the bottoms of the first storage tank and the second storage tank are communicated through a connecting pipeline, a first cover body is covered at the top opening position of the first storage tank, and a second cover body is covered at the top opening position of the second storage tank; the inner diameter of the first storage tank is larger than that of the second storage tank, and the height of the second storage tank is not smaller than that of the first storage tank;
the detachable dress of measurement scale is at second holding vessel lateral wall, and the measurement scale top is wooden material, well lower part and is low temperature resistant plastics material, and the length of measuring the scale is greater than the second holding vessel height.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a pair of conveniently measure device of liquid nitrogen capacity, because the linker principle, first liquid nitrogen container and second liquid nitrogen container highly keep unanimous, as long as survey the height that the height of first liquid nitrogen container just can be known to the interior liquid nitrogen of second liquid nitrogen container. Since the second storage tank has an inner diameter smaller than that of the first storage tank, loss of liquid nitrogen is small at each measurement; the upper and lower parts of the measuring scale are made of different materials, so that the residual quantity of liquid nitrogen can be displayed, and the safety of hands of a user can be effectively protected. Compared with the prior art, the utility model has the advantages of simple structure, safe and convenient operation, etc.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, 1 is a first storage tank, 2 is a first storage tank, 3 is a first cover, 4 is a second cover, and 5 is a measuring scale.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
A device for conveniently measuring the volume of liquid nitrogen as shown in fig. 1, which comprises a storage tank and a measuring scale 5, wherein: the storage tank comprises a first storage tank 1 and a second storage tank 2, the bottoms of the first storage tank 1 and the second storage tank 2 are communicated through a connecting pipeline, a first cover body 3 is covered at the top opening position of the first storage tank 1, and a second cover body 4 is covered at the top opening position of the second storage tank 2; the inner diameter of the first storage tank 1 is larger than that of the second storage tank 2, and the height of the second storage tank 2 is not smaller than that of the first storage tank 1;
the 5 detachable dresses of measurement scale are at 2 lateral walls of second holding vessel, and 5 tops of measurement scale are wooden material, well lower part and are low temperature resistant plastics material, and the length of measuring scale 5 is greater than the second storage tank height.
The use process of the device is as follows:
as shown in FIG. 1, when in use, the second cover 4 on the second storage tank 2 is opened, and the height of the liquid nitrogen in the first storage tank 1 can be obtained by measuring the height of the liquid nitrogen in the second storage tank 2 through the measuring scale 5.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (1)
1. The utility model provides a conveniently measure device of liquid nitrogen capacity, it includes holding vessel and measurement scale (5), its characterized in that: the storage tank comprises a first storage tank (1) and a second storage tank (2), the bottoms of the first storage tank (1) and the second storage tank (2) are communicated through a connecting pipeline, a first cover body (3) is covered at the opening position of the top of the first storage tank (1), and a second cover body (4) is covered at the opening position of the top of the second storage tank (2); the inner diameter of the first storage tank (1) is larger than that of the second storage tank (2), and the height of the second storage tank (2) is not smaller than that of the first storage tank (1);
measure scale (5) detachable dress at second holding vessel (2) lateral wall, measure scale (5) top and be wooden material, well lower part and be low temperature resistant plastics material, measure the length of scale (5) and be greater than the second storage tank height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921372217.XU CN211875690U (en) | 2019-08-22 | 2019-08-22 | Device convenient for measuring liquid nitrogen capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921372217.XU CN211875690U (en) | 2019-08-22 | 2019-08-22 | Device convenient for measuring liquid nitrogen capacity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211875690U true CN211875690U (en) | 2020-11-06 |
Family
ID=73240917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921372217.XU Active CN211875690U (en) | 2019-08-22 | 2019-08-22 | Device convenient for measuring liquid nitrogen capacity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211875690U (en) |
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2019
- 2019-08-22 CN CN201921372217.XU patent/CN211875690U/en active Active
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