CN219391055U - Measuring device for liquid level of liquid nitrogen in liquid nitrogen tank - Google Patents
Measuring device for liquid level of liquid nitrogen in liquid nitrogen tank Download PDFInfo
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- CN219391055U CN219391055U CN202320659249.8U CN202320659249U CN219391055U CN 219391055 U CN219391055 U CN 219391055U CN 202320659249 U CN202320659249 U CN 202320659249U CN 219391055 U CN219391055 U CN 219391055U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The utility model relates to a measuring device for liquid level height of liquid nitrogen in a liquid nitrogen tank, which comprises a main body mechanism, an angle measuring assembly, an ultrasonic measuring assembly and a measuring mechanism; the main body mechanism comprises a top plate, fixing columns, a hose and a mounting plate, wherein the bottom of the top plate is fixedly connected with the fixing columns, the hose is arranged between the top plate and the mounting plate, and the top of the mounting plate is provided with an angle measuring assembly; the measuring mechanism and the ultrasonic measuring assembly are both arranged on the top plate; the ultrasonic measuring assembly comprises an ultrasonic ranging sensor fixed at the bottom of the top plate. The utility model has the advantages that: simple structure and convenient operation. The liquid level height of liquid nitrogen is accurately measured through the ultrasonic measuring assembly, the fluctuation state of the liquid level is detected through the angle measuring assembly, and meanwhile, the liquid level fluctuation state can be detected in an auxiliary mode through the measuring mechanism, so that the accuracy of a measuring result is further guaranteed.
Description
Technical Field
The utility model belongs to the field of liquid nitrogen storage, and particularly relates to a measuring device for liquid nitrogen liquid level in a liquid nitrogen tank.
Background
The liquid nitrogen tank can be generally divided into a liquid nitrogen storage tank and a liquid nitrogen transportation tank, the storage tank is mainly used for standing storage of indoor liquid nitrogen, long-distance transportation is not suitable to be carried out under the working state, the liquid nitrogen transportation tank is specially designed for vibration prevention in order to meet the transportation condition, besides the liquid nitrogen storage tank can be used for transportation under the state of filling liquid nitrogen, severe collision and vibration are avoided, when the liquid nitrogen storage is carried out, in order to ensure the liquid nitrogen storage amount, the liquid nitrogen liquid level is required to be measured, the liquid nitrogen is convenient to be added later, and a special measuring device is required to be used for measuring because of ultra-low liquid nitrogen Wen Yuangu.
Through retrieving, the patent of application number CN201921017160.1 discloses a liquid nitrogen liquid level measuring device, including the kicker, measure drum, dipperstick and be used for the lid to locate the fixed lid of jar mouth top of liquid nitrogen container, the kicker is coaxial to be fixed in on the lower extreme of dipperstick, and the measurement drum cover is located on the dipperstick and is set up with the dipperstick is separable, and the fixed lid coaxial sleeve is established and is fixed in the device at the middle part of measuring the drum. The device can more accurately measure the liquid level of liquid nitrogen through the arrangement of the floating block and the measuring ruler, and the real-time liquid level of the liquid nitrogen can be effectively fed back by the measuring ruler. When the device measures the liquid level, the liquid level is difficult to detect when the tank collides, so that the actual liquid level measurement data is not accurate enough; the structure is more complicated, the manufacturing cost is high, the measuring efficiency is low, the operation is inconvenient, and the volatilization waste of liquid nitrogen is easily caused in the measuring process. Patent application number CN202022319395.5 discloses a liquid nitrogen container liquid level detection device, sets up two platinum resistance sensor simultaneously, can monitor the change of liquid level in real time according to platinum resistance sensor resistance's change to, according to the change of resistance between one of them platinum resistance sensor and the another one platinum resistance, roughly obtain the interval that the liquid level changed. However, the platinum resistor is also easily displaced or the wire is broken in the use process, so that the detection device is damaged, and the measurement result is affected.
Disclosure of Invention
The utility model aims to provide a measuring device for liquid nitrogen liquid level in a liquid nitrogen tank, which can accurately measure the liquid nitrogen liquid level and can detect the liquid level fluctuation state.
In order to achieve the above purpose, the present utility model is realized by the following technical scheme:
the measuring device for the liquid level height of the liquid nitrogen in the liquid nitrogen tank comprises a main body mechanism, an angle measuring assembly, an ultrasonic measuring assembly and a measuring mechanism;
the main body mechanism comprises a top plate, fixing columns, a hose and a mounting plate, wherein the bottom of the top plate is fixedly connected with the fixing columns, the hose is arranged between the top plate and the mounting plate, and the top of the mounting plate is provided with an angle measuring assembly; the measuring mechanism and the ultrasonic measuring assembly are both arranged on the top plate; the ultrasonic measuring assembly comprises an ultrasonic ranging sensor fixed at the bottom of the top plate.
The angle measurement assembly comprises a protection box, an angular displacement sensor and a cover plate, wherein the protection box is fixedly connected to the top of the mounting plate, a heat insulation layer is arranged in the protection box, the angular displacement sensor is arranged in the heat insulation layer, and the cover plate is fixedly connected to the top of the protection box.
The ultrasonic measurement assembly also comprises a clamping plate, a lifting handle and a sealing gasket, wherein the bottom of the clamping plate is fixedly connected with the ultrasonic ranging sensor, the lifting handle is fixedly connected with the top of the clamping plate, the clamping plate is fixedly connected with the top plate, and the sealing gasket is arranged between the clamping plate and the top plate.
An air bag is fixed around the mounting plate.
The bottom of the mounting plate is connected with a floating plate.
The top end of the hose is fixedly connected with the top plate, and the hose penetrates through the fixing column to be fixedly connected with the mounting plate.
The top of the top plate is connected with a handle.
The measuring mechanism comprises a sealing block, a measuring rod, a connecting sheet, a graduated scale and a floating block, wherein the sealing block is spliced with the top plate, the measuring rod is fixedly connected to the bottom of the sealing block, the floating block is fixedly connected to the bottom of the measuring rod, the connecting sheet is fixedly arranged on the side part of the measuring rod, and the graduated scale is fixedly connected with the connecting sheet.
The measuring mechanism also comprises a rubber pad and a handheld block, wherein the rubber pad is fixedly connected to the top of the sealing block, and the handheld block is arranged at the top of the rubber pad.
The bottom of the top plate is adhered with a sealing plate.
Compared with the prior art, the utility model has the beneficial effects that:
1. the utility model has simple structure and convenient operation. The liquid level height of liquid nitrogen is accurately measured through the ultrasonic measuring assembly, the fluctuation state of the liquid level is detected through the angle measuring assembly, and meanwhile, the liquid level fluctuation state can be detected in an auxiliary mode through the measuring mechanism, so that the accuracy of a measuring result is further guaranteed.
2. When the device is used, after the mounting plate floats on the surface of the liquid level, the angular displacement sensor detects the liquid level deflection angle, the liquid level fluctuation state is monitored, a basis is provided for realizing the accuracy of a subsequent measurement result, and meanwhile, the arranged heat insulation layer isolates the external low temperature, so that the damage to the internal angular displacement sensor is prevented, and the normal operation of the angular displacement sensor is ensured.
3. When the ultrasonic distance measuring device is used, the ultrasonic distance measuring sensor at the bottom of the top plate emits ultrasonic waves and receives the ultrasonic waves rebounded by the liquid level to measure the distance, so that the accuracy of measurement is ensured.
4. When the utility model is used, the measuring rod arranged in the tank body is used for measuring through the graduated scale on the measuring rod, and the accuracy of a measuring result is further ensured by assisting physical detection.
Drawings
Fig. 1 is a schematic structural diagram of the present utility model.
Fig. 2 is a schematic structural diagram of the second embodiment of the present utility model.
Fig. 3 is a schematic view of the structure of the angle measuring assembly.
Fig. 4 is a schematic structural view of the measuring mechanism.
In the figure: 100. a main body mechanism; 101. a top plate; 102. a sealing plate; 103. fixing the column; 104. a hose; 105. a mounting plate; 106. an air bag; 107. a floating plate; 108. an angle measurement assembly; 108a, a protection box; 108b, an angular displacement sensor; 108c, a heat insulation layer; 108d, a cover plate; 109. an ultrasonic measurement assembly; 109a, a clamping plate; 109b, a gasket; 109c, a handle; 109d, ultrasonic ranging sensor; 110. a fixing plate; 111. a handle; 200. a measuring mechanism; 201. a sealing block; 202. a measuring rod; 203. a connecting sheet; 204. a graduated scale; 205. a rubber pad; 206. a hand-held block; 207. and (5) floating blocks.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
None of the utility models are related to the same or are capable of being practiced in the prior art.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and to simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Example 1
Referring to fig. 1 and 2, a device for measuring the liquid level of liquid nitrogen in a liquid nitrogen tank comprises a main body mechanism 100, an angle measuring assembly 108, an ultrasonic measuring assembly 109 and a measuring mechanism 200.
The main body mechanism 100 comprises a top plate 101, a fixed column 103, a hose 104 and a mounting plate 105, wherein the fixed column 103 is fixedly connected to the bottom of the top plate 101, the hose 104 is arranged between the top plate 101 and the mounting plate 105, and an angle measuring assembly 108 is arranged at the top of the mounting plate 105; the measuring mechanism 200 and the ultrasonic measuring assembly 109 are both mounted on the top plate 101; the ultrasonic measurement assembly 109 includes an ultrasonic ranging sensor 109d secured to the bottom of the top plate 101. An air bag 106 is fixed around the mounting plate 105, and a floating plate 107 is connected to the bottom of the mounting plate 105 to provide necessary buoyancy for the mounting plate 105.
In order to monitor the fluctuation state of the liquid level and ensure the accuracy of the subsequent measurement results, the angle measurement assembly 108 comprises a protection box 108a fixed on the top of the mounting plate 105, a thermal insulation layer 108c adhered inside the protection box 108a, an angular displacement sensor 108b fixed inside the thermal insulation layer 108c through bolts, a cover plate 108d fixed on the top of the protection box 108a through bolts, and the angular displacement sensor 108b inside the protection box 108a detecting the liquid level shift angle, and the thermal insulation layer 108c isolating the external low temperature.
In order to monitor the distance between the liquid level and the top plate 101, an ultrasonic measurement assembly 109 is fixed on one side of the top plate 101, the ultrasonic measurement assembly 109 comprises an ultrasonic ranging sensor 109d, a clamping plate 109a, a lifting handle 109c and a sealing pad 109b, the clamping plate a is formed by fixedly connecting an upper plate and a lower plate through bolts, the upper plate is arranged at the top of the top plate 101, the lower plate is arranged at the bottom of the top plate 101, the ultrasonic ranging sensor 109d is fixed at the bottom of the lower plate, the bolts penetrate through the top plate 101 to fixedly connect the upper plate and the lower plate, the sealing pad 109b is arranged between the clamping plate 109a and the top plate 101, the opening is sealed, and the lifting handle 109c is integrally formed at the top of the clamping plate 109 a. The ultrasonic ranging sensor 109d at the bottom of the top plate 101 emits ultrasonic waves and receives ultrasonic waves rebounded from the liquid surface to perform ranging.
The ultrasonic ranging sensor 109d may also employ chinese patent application No.: 201621055553.8, a device for measuring the liquid level in a liquid nitrogen tank is disclosed.
Working principle: when the device is used, the mounting plate 105 floats on the liquid level, the angular displacement sensor 108b in the protection box 108a detects the liquid level offset angle, the liquid level fluctuation state is monitored, and a basis is provided for realizing the accuracy of the subsequent measurement result. Meanwhile, the ultrasonic ranging sensor 109d at the bottom of the top plate 101 emits ultrasonic waves and receives ultrasonic waves rebounded by the liquid level to perform ranging, so that the accuracy of the measurement is ensured.
Example 2
Based on the embodiment 1, the measuring mechanism 200 adopts a measuring ruler to measure the liquid nitrogen level, so that the accuracy of the measuring result is further ensured. The measuring mechanism 200 comprises a sealing block 201, a measuring rod 202, a connecting sheet 203, a graduated scale 204 and a floating block 207, wherein the sealing block 201 is spliced with the top plate 101, the measuring rod 202 is fixedly connected to the bottom of the sealing block 201, the floating block 207 is fixedly connected to the bottom of the measuring rod 202, the connecting sheet 203 is fixedly arranged on one side of the measuring rod 202, and one side of the graduated scale 204 is fixedly connected with the connecting sheet 203.
A rubber pad 205 is fixedly connected to the top of the sealing block 201, a handheld block 206 is arranged on the top of the rubber pad 205, and the opening is further sealed through the rubber pad 205. The overall density of the measurement mechanism 200 is less than the density of liquid nitrogen, and the float 207 provides the necessary buoyancy for the measurement mechanism 200. The measuring rod 202 adopts a wedge-shaped structure with a large upper part and a small lower part, so that the measuring rod 202 can be ensured to smoothly ascend under the action of buoyancy, and meanwhile, the self weight is reduced.
When the device is used, after the mounting plate 105 floats on the liquid level, the angular displacement sensor 108b and the ultrasonic ranging sensor 109d work, a worker wears the protection pull-out sealing block 201, the measuring rod 202 rises, after the floating block 207 stably stays on the liquid nitrogen surface under the action of buoyancy, the liquid level is measured through the graduated scale 204 on the measuring rod 202, and the accuracy of a measuring result can be further ensured by auxiliary physical detection.
In addition, the sealing plate 102 is adhered to the bottom of the top plate 101, so that liquid nitrogen is effectively prevented from overflowing, meanwhile, in order to facilitate the use of the measuring device, a fixing plate 110 is integrally formed on the top of the top plate 101, and a handle 111 is connected to the top of the fixing plate 110. The top of the hose 104 is fixedly connected with the top plate 101, the hose 104 passes through the fixed column 103 to be fixedly connected with the mounting plate 105, the mounting plate 105 can float on the liquid nitrogen liquid level through the arrangement of the hose 104, and the protection box 108b can not touch the top plate 101 when the mounting plate 105 floats to the limit position through the arrangement of the fixed column 103. In addition, the top end of the hose 104 can be fixedly connected with the fixing column 103.
Claims (10)
1. The measuring device for the liquid level of the liquid nitrogen in the liquid nitrogen tank is characterized by comprising a main body mechanism, an angle measuring assembly, an ultrasonic measuring assembly and a measuring mechanism;
the main body mechanism comprises a top plate, fixing columns, a hose and a mounting plate, wherein the bottom of the top plate is fixedly connected with the fixing columns, the hose is arranged between the top plate and the mounting plate, and the top of the mounting plate is provided with an angle measuring assembly; the measuring mechanism and the ultrasonic measuring assembly are both arranged on the top plate; the ultrasonic measuring assembly comprises an ultrasonic ranging sensor fixed at the bottom of the top plate.
2. The device for measuring the liquid level of liquid nitrogen in the liquid nitrogen tank according to claim 1, wherein the angle measuring assembly comprises a protection box, an angular displacement sensor and a cover plate, the protection box is fixedly connected to the top of the mounting plate, a heat insulation layer is arranged in the protection box, the angular displacement sensor is arranged in the heat insulation layer, and the cover plate is fixedly connected to the top of the protection box.
3. The device for measuring the liquid level of liquid nitrogen in a liquid nitrogen tank according to claim 1, wherein the ultrasonic measuring assembly further comprises a clamping plate, a handle and a sealing gasket, the bottom of the clamping plate is fixedly connected with the ultrasonic ranging sensor, the top of the clamping plate is fixedly connected with the handle, the clamping plate is fixedly connected with the top plate, and the sealing gasket is arranged between the clamping plate and the top plate.
4. The device for measuring the liquid level of liquid nitrogen in a liquid nitrogen tank according to claim 1, wherein an air bag is fixed around the mounting plate.
5. The device for measuring the liquid level of liquid nitrogen in a liquid nitrogen tank according to claim 1, wherein the bottom of the mounting plate is connected with a floating plate.
6. The device for measuring the liquid level of liquid nitrogen in a liquid nitrogen tank according to claim 1, wherein the top end of the hose is fixedly connected with the top plate, and the hose passes through the fixing column to be fixedly connected with the mounting plate.
7. The device for measuring the liquid level of liquid nitrogen in a liquid nitrogen tank according to claim 1, wherein the top of the top plate is connected with a handle.
8. The device for measuring the liquid level of liquid nitrogen in the liquid nitrogen tank according to claim 1, wherein the measuring mechanism comprises a sealing block, a measuring rod, a connecting sheet, a graduated scale and a floating block, the sealing block is spliced with the top plate, the measuring rod is fixedly connected with the bottom of the sealing block, the floating block is fixedly connected with the bottom of the measuring rod, the connecting sheet is fixedly connected with the side part of the measuring rod, and the graduated scale is fixedly connected with the connecting sheet.
9. The device for measuring the liquid level of liquid nitrogen in a liquid nitrogen tank according to claim 8, wherein the measuring mechanism further comprises a rubber pad and a handheld block, the rubber pad is fixedly connected to the top of the sealing block, and the handheld block is arranged on the top of the rubber pad.
10. The device for measuring the liquid level of liquid nitrogen in a liquid nitrogen tank of claim 1, wherein a sealing plate is adhered to the bottom of the top plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320659249.8U CN219391055U (en) | 2023-03-29 | 2023-03-29 | Measuring device for liquid level of liquid nitrogen in liquid nitrogen tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320659249.8U CN219391055U (en) | 2023-03-29 | 2023-03-29 | Measuring device for liquid level of liquid nitrogen in liquid nitrogen tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219391055U true CN219391055U (en) | 2023-07-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320659249.8U Active CN219391055U (en) | 2023-03-29 | 2023-03-29 | Measuring device for liquid level of liquid nitrogen in liquid nitrogen tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219391055U (en) |
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2023
- 2023-03-29 CN CN202320659249.8U patent/CN219391055U/en active Active
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