CN214893568U - Liquid level detection device - Google Patents
Liquid level detection device Download PDFInfo
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- CN214893568U CN214893568U CN202121484784.1U CN202121484784U CN214893568U CN 214893568 U CN214893568 U CN 214893568U CN 202121484784 U CN202121484784 U CN 202121484784U CN 214893568 U CN214893568 U CN 214893568U
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Abstract
The invention relates to the technical field of detection equipment, in particular to a liquid level detection device. The device comprises: the device comprises a vacuum container, two partition plates, liquid nitrogen, a suspension structure and a sensor array, wherein the two partition plates are arranged in the vacuum container and divide the vacuum container into a first cavity, a second cavity and a third cavity; the liquid nitrogen is arranged in the vacuum container, and the liquid nitrogen is arranged in the first cavity; the suspension structure is arranged in the first cavity and floats above the liquid nitrogen; the sensor array is arranged in the second chamber and is matched with the suspension structure to realize the detection of the liquid level height of the liquid nitrogen. According to the invention, the Hall sensor and the permanent magnet magnetic float are matched to acquire data, so that the height of liquid nitrogen is calculated, and the vacuum shell prevents the use effect of the device caused by temperature change.
Description
Technical Field
The invention relates to the technical field of detection equipment, in particular to a liquid level detection device.
Background
The dewar device of high temperature superconductive maglev train system is small, and liquid nitrogen content is less and the liquid nitrogen is cryogenic liquid, and these conditions require that liquid level detection device can be low temperature resistant, have sufficient discernment precision and can not have great influence to the cold insulation nature of container, and the magnetism float volume is too big among the prior art, can't provide required precision, can't use inside the dewar even to the cold insulation nature of container has the influence among the prior art, influences the use of device.
Disclosure of Invention
The present invention aims to provide a liquid level detecting device to improve the above problems. In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the application provides a liquid level detection device, includes: the device comprises a vacuum container, two partition plates, liquid nitrogen, a suspension structure and a sensor array, wherein the two partition plates are arranged in the vacuum container and divide the vacuum container into a first cavity, a second cavity and a third cavity; the liquid nitrogen is arranged in the vacuum container, and the liquid nitrogen is arranged in the first cavity; the suspension structure is arranged in the first cavity and floats above the liquid nitrogen; the sensor array is arranged in the second chamber and is matched with the suspension structure to realize the detection of the liquid level height of the liquid nitrogen.
Optionally, the suspension structure comprises a permanent magnet and an extruded sheet, the extruded sheet floats above the liquid nitrogen, and the permanent magnet is arranged inside the extruded sheet.
Optionally, the width of the extruded plate is smaller than the width of the first chamber, and the height of the extruded plate is larger than the difference between the inner wall of the first chamber and the width of the extruded plate.
Optionally, at least two hall sensors are arranged in the sensor array, the hall sensors are all arranged in parallel, and the at least two hall sensors are fixedly connected with the partition plate.
Optionally, be provided with control panel and anticollision cotton in the third cavity, the anticollision cotton with the third cavity inner wall contacts, the control panel sets up between the anticollision cotton.
Optionally, the distance between two adjacent hall sensors is smaller than the thickness of the suspension structure.
Optionally, the vacuum container is a dewar, and a wall of the vacuum container is provided with a vacuum interlayer.
The invention has the beneficial effects that:
according to the invention, the permanent magnet is placed in the low-density material, so that the permanent magnet can float on liquid nitrogen, then the Hall sensor and the permanent magnet magnetic float are matched to collect data, further the height of the liquid nitrogen is calculated, and the Hall sensor is attached to the interlayer, so that the temperature change is prevented, and further the use effect of the device caused by the temperature change is prevented.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the embodiments of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic cross-sectional view of a liquid level detection apparatus according to an embodiment of the present invention.
The labels in the figure are: 1. a vacuum vessel; 2. a partition plate; 3. liquid nitrogen; 4. a permanent magnet; 5. extruding a plastic plate; 6. a Hall sensor; 7. a control panel; 8. anti-collision cotton; 9. and (5) vacuum interlayer.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
Example 1
As shown in fig. 1, the present embodiment provides a liquid level detecting apparatus including:
the device comprises a vacuum container 1, partition plates 2, liquid nitrogen 3, a suspension structure and a sensor array, wherein the partition plates 2 are arranged in two numbers, the two partition plates 2 are arranged in the vacuum container 1, and the vacuum container 1 is divided into a first cavity, a second cavity and a third cavity by the two partition plates 2; the liquid nitrogen 3 is arranged in the vacuum container 1, and the liquid nitrogen 3 is arranged in the first cavity; the suspension structure is arranged in the first cavity and floats above the liquid nitrogen 3; the sensor array is arranged in the second chamber and is matched with the suspension structure to realize the detection of the liquid level height of the liquid nitrogen.
According to the invention, the permanent magnet is placed in the low-density material, so that the permanent magnet can float on liquid nitrogen, then the Hall sensor and the permanent magnet magnetic float are matched to collect data, further the height of the liquid nitrogen is calculated, and the Hall sensor is attached to the interlayer, so that the temperature change is prevented, and further the use effect of the device caused by the temperature change is prevented.
Example 2
As shown in fig. 1, the present embodiment provides a liquid level detecting apparatus including:
the device comprises a vacuum container 1, partition plates 2, liquid nitrogen 3, a suspension structure and a sensor array, wherein the partition plates 2 are arranged in two numbers, the two partition plates 2 are arranged in the vacuum container 1, and the vacuum container 1 is divided into a first cavity, a second cavity and a third cavity by the two partition plates 2; the liquid nitrogen 3 is arranged in the vacuum container 1, and the liquid nitrogen 3 is arranged in the first cavity; the suspension structure is arranged in the first cavity and floats above the liquid nitrogen 3; the sensor array is arranged in the second chamber and is matched with the suspension structure to realize the detection of the liquid level height of the liquid nitrogen.
The suspension structure comprises a permanent magnet 4 and an extruded sheet 5, the extruded sheet 5 floats above the liquid nitrogen 3, and the permanent magnet 4 is arranged inside the extruded sheet 5.
According to the invention, the permanent magnet 4 is combined with the extruded sheet 5, so that the permanent magnet can float above the liquid nitrogen 3, the permanent magnet 4 can be ensured not to shake left and right at a fixed position, and the measurement error is reduced.
Example 3
As shown in fig. 1, the present embodiment provides a liquid level detecting apparatus including:
the device comprises a vacuum container 1, partition plates 2, liquid nitrogen 3, a suspension structure and a sensor array, wherein the partition plates 2 are arranged in two numbers, the two partition plates 2 are arranged in the vacuum container 1, and the vacuum container 1 is divided into a first cavity, a second cavity and a third cavity by the two partition plates 2; the liquid nitrogen 3 is arranged in the vacuum container 1, and the liquid nitrogen 3 is arranged in the first cavity; the suspension structure is arranged in the first cavity and floats above the liquid nitrogen 3; the sensor array is arranged in the second chamber and is matched with the suspension structure to realize the detection of the liquid level height of the liquid nitrogen.
The width of the extruded plate 5 is less than that of the first chamber, and the height of the extruded plate 5 is greater than the difference between the width of the first chamber inner wall and the width of the extruded plate 5.
The invention prevents the water seepage extruded sheet 5 from sliding in the first cavity by arranging the extruded sheet 5, thereby ensuring the measurement accuracy and protecting the safety of the container.
Example 4
As shown in fig. 1, the present embodiment provides a liquid level detecting apparatus including:
the device comprises a vacuum container 1, partition plates 2, liquid nitrogen 3, a suspension structure and a sensor array, wherein the partition plates 2 are arranged in two numbers, the two partition plates 2 are arranged in the vacuum container 1, and the vacuum container 1 is divided into a first cavity, a second cavity and a third cavity by the two partition plates 2; the liquid nitrogen 3 is arranged in the vacuum container 1, and the liquid nitrogen 3 is arranged in the first cavity; the suspension structure is arranged in the first cavity and floats above the liquid nitrogen 3; the sensor array is arranged in the second chamber and is matched with the suspension structure to realize the detection of the liquid level height of the liquid nitrogen.
At least two Hall sensors 6 are arranged in the sensor array, the Hall sensors 6 are arranged in parallel, and at least two Hall sensors 6 are fixedly connected with the partition plate 2.
According to the invention, the liquid level height is measured by arranging the Hall sensor 6, the Hall sensor 6 can acquire the specific position of the permanent magnet 4 through an electromagnetic signal, and the specific position of the Hall sensor 6 is sent to the control board 7.
Example 5
As shown in fig. 1, the present embodiment provides a liquid level detecting apparatus including:
the device comprises a vacuum container 1, partition plates 2, liquid nitrogen 3, a suspension structure and a sensor array, wherein the partition plates 2 are arranged in two numbers, the two partition plates 2 are arranged in the vacuum container 1, and the vacuum container 1 is divided into a first cavity, a second cavity and a third cavity by the two partition plates 2; the liquid nitrogen 3 is arranged in the vacuum container 1, and the liquid nitrogen 3 is arranged in the first cavity; the suspension structure is arranged in the first cavity and floats above the liquid nitrogen 3; the sensor array is arranged in the second chamber and is matched with the suspension structure to realize the detection of the liquid level height of the liquid nitrogen.
At least two Hall sensors 6 are arranged in the sensor array, the Hall sensors 6 are arranged in parallel, and at least two Hall sensors 6 are fixedly connected with the partition plate 2.
The third indoor control panel 7 and the cotton 8 of anticollision that are provided with, the cotton 8 of anticollision with the third indoor wall contacts, control panel 7 sets up between the cotton 8 of anticollision.
According to the invention, the control board 7 and the anti-collision cotton 8 are arranged on the inner wall of the third cavity to receive the transmission of the Hall sensor 6, and the control board 7 is prevented from colliding with the vacuum container 1 in the operation process to cause damage.
Example 6
As shown in fig. 1, the present embodiment provides a liquid level detecting apparatus including:
the device comprises a vacuum container 1, partition plates 2, liquid nitrogen 3, a suspension structure and a sensor array, wherein the partition plates 2 are arranged in two numbers, the two partition plates 2 are arranged in the vacuum container 1, and the vacuum container 1 is divided into a first cavity, a second cavity and a third cavity by the two partition plates 2; the liquid nitrogen 3 is arranged in the vacuum container 1, and the liquid nitrogen 3 is arranged in the first cavity; the suspension structure is arranged in the first cavity and floats above the liquid nitrogen 3; the sensor array is arranged in the second chamber and is matched with the suspension structure to realize the detection of the liquid level height of the liquid nitrogen.
At least two Hall sensors 6 are arranged in the sensor array, the Hall sensors 6 are arranged in parallel, and at least two Hall sensors 6 are fixedly connected with the partition plate 2.
The distance between two adjacent Hall sensors 6 is smaller than the thickness of the suspension structure.
When the thickness of the Hall sensor is smaller than that of the suspension structure, the liquid level acquired by the Hall sensor is more accurate.
Example 7
As shown in fig. 1, the present embodiment provides a liquid level detecting apparatus including:
the device comprises a vacuum container 1, partition plates 2, liquid nitrogen 3, a suspension structure and a sensor array, wherein the partition plates 2 are arranged in two numbers, the two partition plates 2 are arranged in the vacuum container 1, and the vacuum container 1 is divided into a first cavity, a second cavity and a third cavity by the two partition plates 2; the liquid nitrogen 3 is arranged in the vacuum container 1, and the liquid nitrogen 3 is arranged in the first cavity; the suspension structure is arranged in the first cavity and floats above the liquid nitrogen 3; the sensor array is arranged in the second chamber and is matched with the suspension structure to realize the detection of the liquid level height of the liquid nitrogen.
The vacuum container 1 is a Dewar flask, and a vacuum interlayer 9 is arranged on the wall of the vacuum container 1.
The vacuum interlayer 9 is arranged to keep the liquid temperature, so that the liquid nitrogen is ensured not to change state along with the temperature rise.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A liquid level detection device, comprising:
a vacuum vessel (1);
the two partition plates (2) are arranged, the two partition plates (2) are arranged in the vacuum container (1), and the two partition plates (2) divide the vacuum container (1) into a first chamber, a second chamber and a third chamber;
the liquid nitrogen (3) is arranged in the vacuum container (1), and the liquid nitrogen (3) is arranged in the first cavity;
a suspension structure disposed within the first chamber, the suspension structure floating above the liquid nitrogen (3); and
and the sensor array is arranged in the second chamber and is matched with the suspension structure to realize the detection of the liquid level height of the liquid nitrogen.
2. The fluid level detection apparatus of claim 1, wherein: the suspension structure comprises a permanent magnet (4) and an extruded sheet (5), the extruded sheet (5) floats above the liquid nitrogen (3), and the permanent magnet (4) is arranged inside the extruded sheet (5).
3. The liquid level detection apparatus of claim 2, wherein: the width of the extruded sheet (5) is smaller than that of the first chamber, and the height of the extruded sheet (5) is larger than the difference between the width of the first chamber inner wall and the width of the extruded sheet (5).
4. The fluid level detection apparatus of claim 1, wherein: at least two Hall sensors (6) are arranged in the sensor array, the Hall sensors (6) are arranged in parallel, and the Hall sensors (6) are fixedly connected with the partition plate (2).
5. The fluid level detection apparatus of claim 1, wherein: the anti-collision device is characterized in that a control panel (7) and anti-collision cotton (8) are arranged in the third chamber, the anti-collision cotton (8) is in contact with the inner wall of the third chamber, and the control panel (7) is arranged between the anti-collision cotton (8).
6. The liquid level detection apparatus of claim 4, wherein: the distance between two adjacent Hall sensors (6) is smaller than the thickness of the suspension structure.
7. The fluid level detection apparatus of claim 1, wherein: the vacuum container (1) is a Dewar flask, and a vacuum interlayer (9) is arranged on the wall of the vacuum container (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121484784.1U CN214893568U (en) | 2021-07-01 | 2021-07-01 | Liquid level detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121484784.1U CN214893568U (en) | 2021-07-01 | 2021-07-01 | Liquid level detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214893568U true CN214893568U (en) | 2021-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121484784.1U Active CN214893568U (en) | 2021-07-01 | 2021-07-01 | Liquid level detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214893568U (en) |
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2021
- 2021-07-01 CN CN202121484784.1U patent/CN214893568U/en active Active
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