CN211927007U - High-temperature material level sensor - Google Patents
High-temperature material level sensor Download PDFInfo
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- CN211927007U CN211927007U CN202020656039.XU CN202020656039U CN211927007U CN 211927007 U CN211927007 U CN 211927007U CN 202020656039 U CN202020656039 U CN 202020656039U CN 211927007 U CN211927007 U CN 211927007U
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- level sensor
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- high temperature
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Abstract
The utility model provides a high temperature material level sensor, include: a housing provided with an accommodating cavity; an upper cover cooperating with the housing; the electrode plates are arranged on one side, away from the shell, of the upper cover at intervals, and the adjacent electrode plates are parallel to each other; the control circuit board is accommodated in the accommodating cavity and comprises a signal detection processing board, a power supply conversion control board and a nixie tube; and a relay switch arranged on the control circuit board. The control circuit board with the signal detection processing board and the power supply conversion control board is adopted, the purpose of judging the type of the detected material in the continuous detection process is achieved, the upper limit value and the lower limit value of the dielectric constant of the detected material are adjusted, and the material is always in the best transfer control state. The utility model discloses structural design is ingenious, adopts the connecting plate and the mounting flange of the seal gasket of silicon rubber preparation, mica heat insulating board preparation, has improved the utility model discloses a high temperature resistant, dust resistance can.
Description
Technical Field
The utility model relates to a sensor, more specifically the says so, relates to a high temperature level sensor.
Background
The working principle of the capacitance level sensor is that a capacitor is formed between an electrode inserted into a bin and the wall of the bin, and when the position of material in the bin changes to cause the change of capacitance, a corresponding control signal is obtained through a conversion circuit. Because the capacitance is continuously variable, the sensor can be used as a continuous level gauge and also as a level switch as an alarm or as an input signal for feeding and discharging devices.
At present, a material level sensor in the market requires a large difference between the dielectric constant of a material and the dielectric constant of air, the changed dielectric constant needs to be compensated when continuous measurement is carried out, and the existing material level sensor has poor stability and reliability under a high-temperature changed working environment; and the existing material level sensor can not automatically judge the type of the material.
SUMMERY OF THE UTILITY MODEL
The utility model provides a high temperature material level sensor can effectively solve above-mentioned problem.
The utility model discloses a realize like this:
a high temperature level sensor comprising:
a housing provided with an accommodating cavity;
an upper cover cooperating with the housing;
the electrode plates are arranged on one side, away from the shell, of the upper cover at intervals, and the adjacent electrode plates are parallel to each other;
the control circuit board is accommodated in the accommodating cavity and comprises a signal detection processing board, a power supply conversion control board and a nixie tube; and
the relay switch is arranged on the control circuit board;
when materials enter between the electrode plates, the change of capacitance values formed between the electrode plates is influenced, so that the change of voltage is influenced; the preset data processing software in the signal detection processing board can calculate the ratio of voltage change and transmit the ratio to the nixie tube for display, and meanwhile, the ratio is transmitted to an external control unit through the relay switch.
As a further improvement, the transmitter comprises a transmitter shell, and the shell is provided with a first through hole matched with the transmitter shell.
As a further improvement, the upper cover includes:
the cover body is matched with the shell and is provided with an accommodating space;
the cover plate is accommodated in the accommodating space, and second through holes matched with the electrode plate are formed in the cover plate at intervals;
the connecting plate is accommodated in the accommodating space and is arranged on one side of the cover plate close to the shell;
the fixed flange is arranged on one side, close to the shell, of the connecting plate; and
and bolts are sequentially fixed on the cover plate, the connecting plate and the fixing flange in a penetrating manner.
As a further improvement, the upper cover includes a sealing gasket sleeved on the outer side of the cover body and attached to the fixing flange.
As a further improvement, the connecting plate and the fixing flange are made of mica heat insulation plates.
As a further improvement, the sealing gasket is made of silicon rubber.
The utility model has the advantages that: the control circuit board with the signal detection processing board and the power supply conversion control board is adopted, the purpose of judging the type of the detected material in the continuous detection process is achieved, the upper limit value and the lower limit value of the dielectric constant of the detected material are adjusted, and the material is always in the best transfer control state. The utility model discloses structural design is ingenious, adopts the connecting plate and the mounting flange of the seal gasket of silicon rubber preparation, mica heat insulating board preparation, has improved the utility model discloses a high temperature resistant, dust resistance can.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required 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 perspective view of the overall structure provided by the embodiment of the present invention.
Fig. 2 is a cross-sectional view of the overall structure provided by the embodiment of the present invention.
In the figure: 1. the shell 11, the accommodating cavity 12, the first through hole 2, the upper cover 21, the cover body 211, the accommodating space 22, the cover plate 221, the second through hole 23, the connecting plate 24, the fixed flange 25, the bolt 26, the sealing gasket 3, the electrode plate 4, the control circuit board 41, the signal detection processing board 42, the power supply conversion control board 43, the nixie tube 5, the relay switch 6 and the transmitter shell
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1 and 2, a high temperature level sensor includes: a housing 1 provided with an accommodating chamber 11; an upper cover 2 fitted to the housing 1; the electrode plates 3 are arranged on one side, away from the shell 1, of the upper cover 2 at intervals, and the adjacent electrode plates 3 are parallel to each other; the control circuit board 4 is accommodated in the accommodating cavity 11, and the control circuit board 4 comprises a signal detection processing board 41, a power supply conversion control board 42 and a nixie tube 43; and a relay switch 5 provided on the control circuit board 4. When materials enter between the electrode plates 3, the change of capacitance values formed between the electrode plates 3 is influenced, so that the change of voltage is influenced; the preset data processing software in the signal detection processing board 41 calculates the ratio of the voltage change and transmits the ratio to the nixie tube 43 for display, and meanwhile, the ratio is also transmitted to an external control unit through the relay switch 5. Further comprises a transmitter shell 6, and a first through hole 12 matched with the transmitter shell 6 is arranged on the shell 1. The control circuit board 4 with the signal detection processing board 41 and the power supply conversion control board 42 is adopted, the judgment of the type of the detected material in the continuous detection process is realized, and the upper and lower limit values of the dielectric constant of the detected material are adjusted, so that the material is always in the optimal transfer and control state. The utility model discloses structural design is ingenious, adopts the connecting plate 23 and the mounting flange 24 of the seal gasket 26 of silicon rubber preparation, the preparation of mica heat insulating board, has improved the utility model discloses a high temperature resistant, dust resistance can.
The upper cover 2 includes: a cover body 21 matched with the shell 1, wherein an accommodating space 211 is arranged on the cover body; the cover plate 22 is accommodated in the accommodating space 211, and second through holes 221 matched with the electrode plate 3 are arranged on the cover plate at intervals; the connecting plate 23 is accommodated in the accommodating space 211 and is arranged on one side of the cover plate 22 close to the shell 1; a fixed flange 24 arranged on one side of the connecting plate 23 close to the shell 1; and bolts 25 sequentially fixed on the cover plate 22, the connecting plate 23 and the fixing flange 24 in a penetrating manner.
The upper cover 2 includes a sealing gasket 26 sleeved on the outer side of the cover body 21 and attached to the fixing flange 24. Seal gasket 26's material is silicon rubber, has promoted the utility model discloses a dust resistance can.
The connecting plate 23 and the fixing flange 24 are made of mica heat insulation plates, so that heat waves can be effectively prevented from being transmitted to the control circuit board 4, and the stability of the high-temperature material level sensor in the working process is ensured.
The utility model provides a pair of high temperature material level sensor's theory of operation does: when in use, the high-temperature material level sensor is arranged at a detection position, and a space formed between two parallel electrode plates 3 is a material passing area; the control circuit board 4 generates a sine signal to be sent out, and the sine signal is transmitted to the signal detection processing board 41 after passing through the two electrode plates 3; if no material enters between the two electrode plates 3, the change of the signal voltage value is negligible; if materials enter between the two electrode plates 3, the signal voltage value has relatively large variation amplitude, when the variation amplitude reaches a certain threshold value, the software control relay switch 5 gives a signal to the external control unit, and then the external control unit controls the material conveying device. The high-temperature material level sensor controls sine wave output through the signal detection processing board 41, and detects the change of signal voltage value caused by the fact that the two electrode plates 3 enter the material through circuit signal amplification, capacitive coupling, full-wave rectification and filtering, so that the detection of whether the material level exists or not is realized; the circuit board controls the nixie tube 43 to display the changed threshold value and output a signal to the external control unit, and the upper and lower limit values of different material threshold values are adjusted and set by a detection using unit according to the dielectric constant of the actually detected material, so that the material is always in the best intermediate transfer control state. In short, the utility model discloses dielectric constant difference when utilizing different materials between the plate electrode or not having the material influences the capacitance value change between the plate electrode, finally is worth measuring through electric capacity between the plate electrode and judges whether there is material or different materials.
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.
Claims (6)
1. A high temperature level sensor, comprising:
a housing provided with an accommodating cavity;
an upper cover cooperating with the housing;
the electrode plates are arranged on one side, away from the shell, of the upper cover at intervals, and the adjacent electrode plates are parallel to each other;
the control circuit board is accommodated in the accommodating cavity and comprises a signal detection processing board, a power supply conversion control board and a nixie tube; and
the relay switch is arranged on the control circuit board;
when materials enter between the electrode plates, the change of capacitance values formed between the electrode plates is influenced, so that the change of voltage is influenced; the preset data processing software in the signal detection processing board can calculate the ratio of voltage change and transmit the ratio to the nixie tube for display, and meanwhile, the ratio is transmitted to an external control unit through the relay switch.
2. The high temperature material level sensor according to claim 1, further comprising a transmitter housing, wherein the housing is provided with a first through hole engaged with the transmitter housing.
3. A high temperature level sensor as claimed in claim 1, wherein said upper cover comprises:
the cover body is matched with the shell and is provided with an accommodating space;
the cover plate is accommodated in the accommodating space, and second through holes matched with the electrode plate are formed in the cover plate at intervals;
the connecting plate is accommodated in the accommodating space and is arranged on one side of the cover plate close to the shell;
the fixed flange is arranged on one side, close to the shell, of the connecting plate; and
and bolts are sequentially fixed on the cover plate, the connecting plate and the fixing flange in a penetrating manner.
4. The high-temperature material level sensor as claimed in claim 3, wherein the upper cover comprises a sealing gasket sleeved outside the cover and attached to the fixing flange.
5. A high temperature material level sensor as claimed in claim 3, wherein the connecting plate and the fixing flange are made of mica heat insulating plate.
6. A high temperature material level sensor as claimed in claim 4, wherein the sealing gasket is made of silicone rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020656039.XU CN211927007U (en) | 2020-04-26 | 2020-04-26 | High-temperature material level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020656039.XU CN211927007U (en) | 2020-04-26 | 2020-04-26 | High-temperature material level sensor |
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| Publication Number | Publication Date |
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| CN211927007U true CN211927007U (en) | 2020-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020656039.XU Active CN211927007U (en) | 2020-04-26 | 2020-04-26 | High-temperature material level sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113503939A (en) * | 2021-08-23 | 2021-10-15 | 石河子大学 | Non-contact type box material level real-time monitoring system |
-
2020
- 2020-04-26 CN CN202020656039.XU patent/CN211927007U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113503939A (en) * | 2021-08-23 | 2021-10-15 | 石河子大学 | Non-contact type box material level real-time monitoring system |
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