CN212228170U - Magnetostrictive liquid level meter suitable for low temperature condition - Google Patents
Magnetostrictive liquid level meter suitable for low temperature condition Download PDFInfo
- Publication number
- CN212228170U CN212228170U CN202020684802.XU CN202020684802U CN212228170U CN 212228170 U CN212228170 U CN 212228170U CN 202020684802 U CN202020684802 U CN 202020684802U CN 212228170 U CN212228170 U CN 212228170U
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- China
- Prior art keywords
- liquid level
- shell
- probe rod
- heat
- probe
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- 239000007788 liquid Substances 0.000 title claims abstract description 42
- 239000000523 sample Substances 0.000 claims abstract description 59
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 238000003780 insertion Methods 0.000 claims abstract description 12
- 230000037431 insertion Effects 0.000 claims abstract description 12
- 238000005485 electric heating Methods 0.000 claims abstract description 7
- 238000009413 insulation Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 description 5
- 238000007791 dehumidification Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model discloses a magnetostrictive liquid level meter suitable for low temperature conditions, which comprises a liquid level meter body, a probe rod protection shell, a four-way connecting piece and a heating component; a probe rod at the lower end of the liquid level meter body is inserted into an inner cavity of the probe rod protection shell and is connected through two interfaces of a four-way connecting piece in the vertical direction; the probe rod comprises a shell, a heat-insulating layer and a second heat-conducting layer, wherein the shell is of a three-layer structure and comprises the first heat-conducting layer, the heat-insulating layer and the second heat-conducting layer which are sequentially arranged from outside to inside; the heating assembly is connected to the bottom end of the probe rod protecting shell and comprises a heat conducting shell and an electric heating device positioned in the shell, an insertion groove used for inserting the probe rod protecting shell is formed in the upper end face of the heat conducting shell, and a heat conducting fin is laid at the bottom of the insertion groove. The utility model discloses a carry out the temperature to the probe and supply and heat real-time heating to the liquid around the level gauge, enlarged the application range of magnetostriction level gauge under the low temperature condition.
Description
Technical Field
The utility model belongs to the level gauge field, concretely relates to magnetostriction level gauge suitable for under the low temperature condition.
Background
The magnetostrictive liquid level meter steel vanadium is applied to the field of liquid level measurement, and is widely applied to the measurement fields of chemical industry, electric power industry, light industry and the like by virtue of measurement reliability, small error and high cost performance. However, the magnetostrictive liquid level meter is mainly suitable for low-viscosity and high-fluidity liquid in measurement. For some liquids, the viscosity of the liquid is increased at a high speed even solidification occurs in a low-temperature environment, so that the magnetostrictive liquid level meter cannot be used for measurement. Meanwhile, when the temperature is lower than minus 40 ℃, the wave guide wire can be influenced, and the transmission of internal torsion waves can be influenced under the condition of deep cooling, so that the instrument fails. In addition, if the liquid level meter works under an extremely cold condition, the liquid level meter is easy to condense and fix and is not easy to take out.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a magnetostrictive liquid level meter suitable for under the low temperature condition.
Realize above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes:
a magnetostrictive liquid level meter suitable for low-temperature conditions comprises a liquid level meter body, a probe rod protection shell, a four-way connecting piece and a heating assembly; a probe rod at the lower end of the liquid level meter body is inserted into an inner cavity of the probe rod protection shell and is connected through two interfaces of a four-way connecting piece in the vertical direction; the probe rod comprises a shell, a heat-insulating layer and a second heat-conducting layer, wherein the shell is of a three-layer structure and comprises the first heat-conducting layer, the heat-insulating layer and the second heat-conducting layer which are sequentially arranged from outside to inside; the heating assembly is connected to the bottom end of the probe rod protecting shell and comprises a heat conducting shell and an electric heating device positioned in the shell, an insertion groove used for inserting the probe rod protecting shell is formed in the upper end face of the heat conducting shell, and a heat conducting fin is laid at the bottom of the insertion groove.
As a further improvement of the utility model, the electric heating device comprises a heating power supply and a heating wire, and the heating wire is in contact with the heat-conducting strip.
As a further improvement of the utility model, the inside wall of the insertion groove with the inside and the outer wall of the probe rod protection casing are provided with tie layers.
As a further improvement of the present invention, the probe protection device further comprises a plurality of annular heat-conducting positioning plates, wherein the heat-conducting positioning plates are arranged between the probe and the gap of the probe protection housing along the extending direction of the probe protection housing.
As a further improvement of the utility model, along a plurality of air vent of arranging of angles such as heat conduction positioning disk, the position of the air vent in two upper and lower heat conduction positioning disks aligns.
As a further improvement, the upper and lower interfaces of the four-way connecting piece pass through the thread bush respectively with the feeler lever of the lower end of the liquid level meter body and the feeler lever protecting shell are fixedly connected.
As a further improvement, the vacuum pressure gauge is further included, the vacuum pressure gauge is connected with the interface of a horizontal direction of the four-way connecting piece, and the other horizontal interface is connected with the vacuumizing device.
As a further improvement of the present invention, the bottom end of the probe rod is located above the bottom surface of the probe rod protection casing.
The utility model has the advantages that: the utility model discloses a device adopts probe protection casing to protect the probe, on the one hand completely cuts off outside cold source, and on the other hand carries out the temperature to the probe and supplyes for the level gauge can be located the workable temperature range that is suitable for still under low temperature, especially extremely cold condition. The heating assembly and the probe rod protection shell can heat the periphery of a measured substance, normal use of the liquid level meter is guaranteed, and the use situation of the liquid level meter under an extremely cold condition is enlarged.
Drawings
FIG. 1 is a schematic structural view of a liquid level meter according to the present invention;
FIG. 2 is a schematic structural view of a heating assembly;
FIG. 3 is a schematic cross-sectional layer structure of a probe rod protection casing;
FIG. 4 is a schematic plan view of a thermally conductive puck;
wherein: the liquid level gauge comprises a liquid level gauge body, a probe rod 2-four-way connecting piece, a probe rod protecting shell, a first heat conducting layer 31, a heat insulating layer 32, a second heat conducting layer 33, a heating assembly 4, a heat conducting shell 41, an insertion groove 42, a heat conducting sheet 43, a heating power supply 441, a heating wire 442, a heat conducting positioning disc 5, an air vent 50, a vacuum pressure gauge 6 and a thread sleeve 7.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following description is made in detail for the application of the principles of the present invention with reference to the accompanying drawings.
The magnetostrictive liquid level meter suitable for being used under the low-temperature condition comprises a liquid level meter body 1, a probe rod protection shell 3, a four-way connecting piece 2 and a heating assembly 4; the probe rod 10 at the lower end of the liquid level meter body 1 is inserted into the inner cavity of the probe rod protection shell 3 and is connected through two interfaces of the four-way connecting piece 2 in the vertical direction. The probe 10 comprises a shell which is of a three-layer structure and comprises a first heat conduction layer 31, a heat insulation layer 32 and a second heat conduction layer 33 which are sequentially arranged from outside to inside; the heat-conducting layers on the two sides are respectively used for transferring heat emitted by the heating component inwards and outwards, and the heat-insulating layer in the middle is used for isolating the influence of an external cold source on the probe. The heating assembly 4 is connected to the bottom end of the probe rod protection shell 3, and comprises a heat conduction shell 41 and an electric heating device positioned in the shell, wherein an insertion groove 42 for inserting the probe rod protection shell 3 is formed in the upper end face of the heat conduction shell 41, a heat conduction sheet 43 is laid at the bottom of the insertion groove 42, and heat is transferred through contact between the heat conduction sheet 43 and the heat conduction layer.
Further, the electric heating apparatus includes a heating power source 441 and a heating wire 442, and the heating wire 442 is in contact with the heat conductive sheet 43.
Further, the inner side wall of the insertion groove 42 and the inner and outer walls of the probe rod protection housing 3 are provided with bonding layers to stably connect the heating assembly 4 below the probe rod protection housing 3.
The probe protection device further comprises a plurality of annular heat-conducting positioning disks 5, wherein the heat-conducting positioning disks 5 are arranged between the probe and a gap of the probe protection shell along the extending direction of the probe protection shell. And a plurality of vent holes 50 are arranged along the heat-conducting positioning disc 5 at equal angles, and the positions of the vent holes 50 in the upper heat-conducting positioning disc 5 and the lower heat-conducting positioning disc 5 are aligned, so that a gap channel is formed, and residual gas is extracted for dehumidification.
The upper and lower interfaces of the four-way connecting piece 2 are respectively fixedly connected with the probe rod at the lower end of the liquid level meter body 1 and the probe rod protection shell 3 through thread sleeves 7, and the thread sleeves 7 also play a role in sealing. During installation, the bottom end of the probe rod 10 is placed above the bottom surface of the probe rod protection shell 3 by taking care of adjustment.
One horizontal interface of the four-way connecting piece 2 is connected with the other horizontal interface of the vacuum pressure gauge 6, which is opposite to the other horizontal interface, and the vacuum interface is connected with a vacuum pumping device and is used for blowing gas into the gap to perform dehumidification operation.
In addition in the preparation the utility model discloses a part that has the heat conduction of magnetostrictive liquid level meter adopts heat conduction ceramic material to support more, adopts adiabatic macromolecular material preparation insulating layer.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A magnetostrictive liquid level meter suitable for low-temperature conditions is characterized in that: the liquid level meter comprises a liquid level meter body, a probe rod protection shell, a four-way connecting piece and a heating assembly; the lower end of the liquid level meter body is connected with a probe, the probe is inserted into an inner cavity of the probe rod protection shell and is connected with two interfaces in the vertical direction through a four-way connecting piece;
the probe rod protection shell is of a three-layer structure and comprises a first heat conduction layer, a heat insulation layer and a second heat conduction layer which are sequentially arranged from outside to inside; the heating assembly is connected to the bottom end of the probe rod protecting shell and comprises a heat conducting shell and an electric heating device positioned in the shell, an insertion groove used for inserting the probe rod protecting shell is formed in the upper end face of the heat conducting shell, and a heat conducting fin is laid at the bottom of the insertion groove.
2. A magnetostrictive liquid level gauge suitable for use under cryogenic conditions, according to claim 1, characterized in that: the electric heating device comprises a heating power supply and a heating wire, and the heating wire is in contact with the heat conducting sheet.
3. A magnetostrictive liquid level gauge suitable for use under cryogenic conditions, according to claim 1, characterized in that: and the inner side wall of the insertion groove and the inner part and the outer wall of the probe rod protection shell are provided with bonding layers.
4. A magnetostrictive liquid level gauge suitable for use under cryogenic conditions, according to claim 1, characterized in that: still include a plurality of annular heat conduction positioning disks, heat conduction positioning disk along the extending direction of probe protection casing arrange the probe with between the clearance of probe protection casing.
5. A magnetostrictive liquid level gauge according to claim 4, characterized in that: and a plurality of vent holes are arranged along the heat conduction positioning disc at equal angles, and the positions of the vent holes in the upper heat conduction positioning disc and the lower heat conduction positioning disc are aligned.
6. A magnetostrictive liquid level gauge suitable for use under cryogenic conditions, according to claim 1, characterized in that: the upper and lower interfaces of the four-way connecting piece are respectively fixedly connected with the probe rod at the lower end of the liquid level meter body and the probe rod protection shell through thread sleeves.
7. A magnetostrictive liquid level gauge according to claim 1 or 6, characterized in that: the vacuum pressure gauge is connected with one horizontal interface of the four-way connecting piece in the opposite direction, and the other horizontal interface is connected with a vacuumizing device.
8. A magnetostrictive liquid level gauge suitable for use under cryogenic conditions, according to claim 1, characterized in that: the bottom end of the probe rod is positioned above the bottom surface of the probe rod protection shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020684802.XU CN212228170U (en) | 2020-04-29 | 2020-04-29 | Magnetostrictive liquid level meter suitable for low temperature condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020684802.XU CN212228170U (en) | 2020-04-29 | 2020-04-29 | Magnetostrictive liquid level meter suitable for low temperature condition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212228170U true CN212228170U (en) | 2020-12-25 |
Family
ID=73909315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020684802.XU Expired - Fee Related CN212228170U (en) | 2020-04-29 | 2020-04-29 | Magnetostrictive liquid level meter suitable for low temperature condition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212228170U (en) |
-
2020
- 2020-04-29 CN CN202020684802.XU patent/CN212228170U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201225 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |