CN203298830U - Inserting type liquid-level measuring device for non-metal vessel - Google Patents
Inserting type liquid-level measuring device for non-metal vessel Download PDFInfo
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- CN203298830U CN203298830U CN2013203791710U CN201320379171U CN203298830U CN 203298830 U CN203298830 U CN 203298830U CN 2013203791710 U CN2013203791710 U CN 2013203791710U CN 201320379171 U CN201320379171 U CN 201320379171U CN 203298830 U CN203298830 U CN 203298830U
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Abstract
The utility model relates to an inserting type liquid-level measuring device for a non-metal vessel. The inserting type liquid-level measuring device comprises the vessel, a transmitter electronic circuit board and a sensor inner electrode. The sensor inner electrode is connected with the transmitter electronic circuit board, and the sensor inner electrode is arranged in the vessel. The inserting type liquid-level measuring device is characterized in that a vessel casing is a non-metal vessel casing, and a metal sleeve is arranged on the outer side of the sensor inner electrode and used as a sensor outer electrode. One end of the sleeve is connected with the non-metal vessel casing through threads and connected with the negative pole of the transmitter electronic circuit board. The other end of the sleeve is communicated with a measured medium, one end of the sensor inner electrode is connected with the non-metal vessel casing in an insulated mode and then connected with the positive pole of the transmitter electronic circuit board, and the other end of the sensor inner electrode is level to the free end of the metal sleeve electrode. The measuring device is simple in structure, reliable in performance and convenient to use.
Description
Technical field
The utility model relates to a kind of measurement mechanism of insert type nonmetallic vessel liquid level, is applicable to level gauging and the control of the concrete liquid collecting well of pipe tobacco vinegar sheet feed bin.
Background technology
The measurement mathematical model of insert type capacitance level gauge (transmitter) is:
C=S*?/4∏*k*d=?L*A*?/4∏*k*d，
Wherein: S-electrode pad area ,-measured medium specific inductive capacity, L-liquid level, A-electrode pad width, ∏ ≈ 3.14, k-constant, the distance between the d-electrode pad.
Insert type capacitive liquid level transmitter measuring principle figure such as Fig. 1 on canister: the insert type capacitive liquid level transmitter is to utilize the potential electrode of the outer wall 2 of canister as capacitive liquid level transmitter; Another potential electrode, namely central electrode 3 insert in canisters and and the wall of canister insulate, centre is the detected fluid medium.For a mounted insert type capacitance level gauge, other parameter all immobilizes, adjust zero point and the range of transmitter, capacitor C is big or small linear with liquid level L only, be that capacitor C is followed the variation of liquid level L and changes, as long as measure the size of capacitor C, just measure the size of liquid level L.Today of development in science and technology, use electronic circuit 1 to be easy to detect the changing value of capacitor C, and convert thereof into the 4-20mA DC signal output of standard, offer and control or indication class instrument or DCS(scattered control system).
And measure the liquid level of the nonmetallic vessels such as concrete with the insert type capacitive liquid level transmitter, difficulty is because lack metal outer wall as another electrode of measuring electric capacity, thereby can not form measurement electric capacity.Instrument manufacturer does not provide the measuring method of insert type capacitive liquid level transmitter on the nonmetallic vessels such as concrete yet.
The utility model content
The purpose of this utility model is to provide a kind of measurement mechanism of insert type nonmetallic vessel liquid level, is applicable to level gauging and the control of the concrete liquid collecting well of pipe tobacco vinegar sheet feed bin; Also can be used for the level gauging of other nonmetallic vessel liquid, slurries, be specially adapted to the measurement of the fluid level that in nonmetallic vessel, toughness is large, as measurement and the control of the liquid levels such as underground coal slurry pond, underground suction pit.
Will be in the liquid level of using on the nonmetallic vessels such as concrete in insert type capacitive liquid level transmitter measuring vessel, it is sleeve electrode that the problem that solves is made a peripheral electrode exactly, make it to form one and measure electric capacity, measure the variation of electric capacity and just learn the wherein variation of liquid level.
the technical solution of the utility model is: the measurement mechanism of insert type nonmetallic vessel liquid level comprises container, the transmitter electrical circuitry plate, electrode in sensor, in sensor, electrode connects the transmitter electrical circuitry plate, in sensor, electrode is placed in container, it is characterized in that shell of tank is the nonmetallic vessel shell, in sensor, electrode arranges a metal sleeve outward as the sensor external electrode, this sleeve one end is connected with (transmitter) nonmetallic vessel shell by screw thread, and with the negative pole of transmitter electrical circuitry plate, be connected, the other end communicates with measured medium, in sensor, electrode one end is connected with the nonmetallic vessel casing insulation, be connected with the positive pole of transmitter electrical circuitry plate again, the other end is concordant with the free end of metal sleeve electrode.
The potential electrode of insert type nonmetallic vessel liquid level of the present utility model is applied on the level gauging and control system of concrete liquid collecting well location of pipe tobacco vinegar sheet feed bin.Can also be used for measuring the large fluid level of nonmetallic vessel toughness, as the liquid level of underground coal slurry pond, underground suction pit.According to practical application, increase the inner diameter d of metal-coating cylinder electrode, the large detected fluid of toughness is submerged in metal-coating cylinder electrode smoothly and not hanging gets final product.Measurement mechanism of the present utility model is simple in structure, dependable performance, easy to use.
Description of drawings
Fig. 1 is the level gauging schematic diagram of capacitive liquid level transmitter on canister.
Fig. 2 is the potential electrode structural representation of insert type nonmetallic vessel liquid level of the present utility model.
In Fig. 1: 1-transmitter electrical circuitry plate, electrode (central electrode) in 2-metallic container shell (external electrode), 3-sensor, L-liquid level.
In Fig. 2: electrode (central electrode) in 1-transmitter electrical circuitry plate, 3-sensor, 4-metal sleeve (sensor external electrode), 5-nonmetallic vessel shell, L-liquid level.
Embodiment
as shown in Figure 2, the measurement mechanism of insert type nonmetallic vessel liquid level of the present utility model comprises container, transmitter electrical circuitry plate 1, electrode 3 in sensor, in sensor, electrode 3 connects transmitter electrical circuitry plate 1, in sensor, electrode is placed in container, described shell of tank is nonmetallic vessel shell 5, in sensor, electrode arranges a metal sleeve 4 outward as the sensor external electrode, this sleeve one end is connected with (transmitter) shell of tank by screw thread, and with the negative pole of transmitter electrical circuitry plate 1, be connected, the other end communicates with measured medium, in sensor, electrode one end is connected with the shell of tank insulation, be connected with the positive pole of transmitter electrical circuitry plate 1 again, the other end is concordant with the free end of metal sleeve electrode.Two ends in metal sleeve arrange two collets and support electrode in sensor.Electrode length, thickness and material can determine according to practical application.
Claims (2)
1. the measurement mechanism of an insert type nonmetallic vessel liquid level, comprise container, the transmitter electrical circuitry plate, electrode in sensor, in sensor, electrode connects the transmitter electrical circuitry plate, in sensor, electrode is placed in container, it is characterized in that shell of tank is the nonmetallic vessel shell, in sensor, electrode arranges a metal sleeve outward as the sensor external electrode, this sleeve one end is connected with the nonmetallic vessel shell by screw thread, and with the negative pole of transmitter electrical circuitry plate, be connected, the other end communicates with measured medium, in sensor, electrode one end is connected with the nonmetallic vessel casing insulation, be connected with the positive pole of transmitter electrical circuitry plate again, the other end is concordant with the free end of metal sleeve electrode.
2. the measurement mechanism of insert type nonmetallic vessel liquid level described according to claim, is characterized in that the two ends in metal sleeve arrange electrode in two collets support sensors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203791710U CN203298830U (en) | 2013-06-28 | 2013-06-28 | Inserting type liquid-level measuring device for non-metal vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203791710U CN203298830U (en) | 2013-06-28 | 2013-06-28 | Inserting type liquid-level measuring device for non-metal vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203298830U true CN203298830U (en) | 2013-11-20 |
Family
ID=49574835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203791710U Expired - Fee Related CN203298830U (en) | 2013-06-28 | 2013-06-28 | Inserting type liquid-level measuring device for non-metal vessel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203298830U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105765354A (en) * | 2013-11-28 | 2016-07-13 | 西港电力公司 | Capacitance-type sensor probe |
| CN111825141A (en) * | 2019-04-15 | 2020-10-27 | 艾默莱科技（北京）有限公司 | Acid evaporator |
-
2013
- 2013-06-28 CN CN2013203791710U patent/CN203298830U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105765354A (en) * | 2013-11-28 | 2016-07-13 | 西港电力公司 | Capacitance-type sensor probe |
| CN105765354B (en) * | 2013-11-28 | 2019-12-10 | 西港电力公司 | Capacitive sensor probe |
| CN111825141A (en) * | 2019-04-15 | 2020-10-27 | 艾默莱科技（北京）有限公司 | Acid evaporator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20150628 |
|
| EXPY | Termination of patent right or utility model |