CN2300092Y - Infrared boiler water level sensor - Google Patents
Infrared boiler water level sensor Download PDFInfo
- Publication number
- CN2300092Y CN2300092Y CN 97219433 CN97219433U CN2300092Y CN 2300092 Y CN2300092 Y CN 2300092Y CN 97219433 CN97219433 CN 97219433 CN 97219433 U CN97219433 U CN 97219433U CN 2300092 Y CN2300092 Y CN 2300092Y
- Authority
- CN
- China
- Prior art keywords
- infrared
- total reflection
- reflection effect
- water level
- profiled
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses an infrared boiler water level sensor which is designed by adopting photoelectric conversion and total reflection effect. With the utilization of an infrared light emitting diode, an infrared reception diode, and a quartz glass total reflection plane of a cavity of a special-shaped quartz glass steam-water communicating vessel with total reflection effect, the total reflection effect, i.e. no reflection occurs when water is provided and refection occurs when no water is provided, is formed. Consequently, the utility model can reflect the condition of water and steam in a boiler drum. The sensor is composed of a special-shaped quartz glass steam-water communicating vessel with total reflection effect and a plurality of infrared water level detection circuits. The utility model has the advantages of no direct contact between medium and sensing element, corrosion prevention and long service life.
Description
The utility model relates to a kind of water level sensor for boiler, infrared water level sensor for boiler.
At present existing water level sensor for boiler mostly is float-ball type, magnetic cylinder formula, electric vortex type etc. greatly, the sensor of these forms all is directly to contact with WATER AS FLOW MEDIUM, vapour, corrosion-vulnerable, influence reliability and serviceable life, these sensors are independent component simultaneously, cause waste of material and use installation inconvenient.
The purpose of this utility model is to propose a kind of infrared water level sensor for boiler, solves the shortcoming of existing level sensor.
Major technique content of the present utility model is, infrared water level sensor for boiler is the principle design that adopts opto-electronic conversion and total reflection effect, utilize infrared-emitting diode 3 and the quartz glass fully-reflected plane of infrared receiving diode 5 to constitute with the cavity M of profiled silex glass carbonated drink linker 4 with total reflection effect, no reflection events when water is arranged, the total reflection effect that reflection is arranged when anhydrous, its infrared light emitting diode and infrared receiver diode are in the corresponding both sides of same surface level, ultrared incident angle should be in the total reflection scope, no reflection events when the quartz glass plane by cavity M has water, reflection is arranged when anhydrous, thus water in the detection reaction boiler drum, the synchronization-moving position of vapour.
Its structure is by the profiled silex glass carbonated drink linker 4 with total reflection effect and a plurality of infrared ray water level detection circuit A for this infrared water level sensor for boiler
1～A
nConstitute; Infrared detection electric routing stabilization pressuring power 1, multifrequency modulation circuit 2, infrared-emitting diode 3, infrared receiving diode 5, multifrequency demodulator circuit 6, liquid level signal translation circuit 7 are formed; Stabilized voltage supply 1 is by commutation diode D
1-D
4Constitute rectifier bridge, filter capacitor C
1, C
2, circuit of three-terminal voltage-stabilizing integrated IC
1Constitute the supply circuit working power; Multifrequency modulation circuit 2 is by the modulation ic chip
25,6,2,1 end, resistance R
5, R
6, R
8, triode BG
2, capacitor C
5, C
6, C
7Constitute oscillatory circuit, produce fixed frequency signal, by triode BG
2Drive and deliver to infrared light emitting diode 3 electric signal is become the infrared ray signal, the quartz glass fully reflecting surface of the cavity M of the profiled silex glass carbonated drink linker 4 of infrared signal by having total reflection effect reflexes to infrared receiver diode 5 and light signal is become electric signal sends into multifrequency demodulator circuit 6; Multifrequency demodulator circuit 6 is by resistance R
1, R
2, R
3, R
4, capacitor C
3, C
4, C
5, C
6, triode BG
1, the modulation ic chip
23,8 ends constitute, the direct current signal that demodulates is delivered to water level signal becomes shifting circuit 7; Water level translation circuit 7 is by resistance R
7, R
9, triode BG
3Constitute, signal is amplified export liquid level signal output terminal SC to, what the having or not of its signal was decided by to have a certain position water in the cavity M of profiled silex glass carbonated drink linker 4 of total reflection effect has or not a plurality of A
1～A
nThe infrared ray water level detection circuit has constituted infrared water level sensor for boiler with the profiled silex glass carbonated drink linker 4 with total reflection effect, the whole water level of reaction boiler.
Technique effect of the present utility model is, this device is a kind of novel sensor of using photoelectricity and total reflection effect principle design, band has replaced sensors such as existing ball float, inductance, current vortex, make WATER AS FLOW MEDIUM or vapour, directly do not contact with sensing element, therefore avoided corroding drawbacks such as aging, prolonged serviceable life, simultaneously safe and reliable.
Fig. 1 is a block scheme of the present utility model;
Fig. 2 is the circuit theory diagrams of infrared ray water level detection circuit of the present utility model;
Fig. 3,4,5 is the structural representation with profiled silex glass carbonated drink linker of total reflection effect.
It is liquid level signal output common port, M cavity, C that 1 stabilized voltage supply, 2 multifrequency modulation circuits, 3 infrared light emitting diodes, 4 have total reflection effect profiled silex glass carbonated drink linker, 5 infrared receiver diodes, 6 multifrequency demodulator circuits, 7 liquid level signal translation circuits, SC liquid level signal output terminal, GND
1-C
7Electric capacity, R
1-R
9Resistance, BG
1-BG
3Triode, IC
1Three-terminal voltage-stabilizing integrated package, IC
2The metal of modulation integrated package, H quartz glass, P fully-reflected plane, G trough of belt holds body, N square substrate.
Realize embodiment of the present utility model as shown in Figure 1, 2.
This infrared water level sensor for boiler is by profiled silex glass carbonated drink linker 4 and a plurality of A with total reflection effect
1-A
nThe infrared ray water level detection circuit constitutes.Its structure as previously mentioned.
Profiled silex glass carbonated drink linker 4 with total reflection effect can be to have profiled silex glass pipe (body) formula of total reflection effect shown in Fig. 3,4, its structure is that cavity M is in profiled silex glass H, cavity M has a fully-reflected plane P, constitutes total reflection effect; Also can be have total reflection effect the profiled silex glass combined type as shown in Figure 5, its structure is the metal appearance body G of cavity M by profiled silex glass H, fully-reflected plane P and a trough of belt, is tightened to the boiler carbonated drink linker with total reflection effect with square substrate N.
This infrared water level sensor for boiler was installed on boiler carbonated drink communicating pipe.
This product also can be done detections such as other liquid level signals such as light oil, liquid soda acid.
This product also can be made one with single, double look water meter, keeps former gauge glass function; Also can combine and constitute sensor, gauge glass, colour-changing display screen three and be the product of one with colour-changing display screen for boiler water-level; Also can be used with the secondary control instrument.
Claims (3)
1, infrared water level sensor for boiler is characterized in that this sensor is by the profiled silex glass carbonated drink linker (4) with total reflection effect and a plurality of infrared ray water level detection circuit (A
1～A
n) constitute; Infrared detection electric routing stabilization pressuring power (1), multifrequency modulation circuit (2), infrared-emitting diode (3), infrared receiving diode (5), multifrequency demodulator circuit (6), liquid level signal translation circuit (7) are formed; Stabilized voltage supply (1) is by commutation diode (D
1-D
4) constitute rectifier bridge, filter capacitor (C
1) (C
2), circuit of three-terminal voltage-stabilizing integrated (IC
1) constitute the supply circuit working power; Multifrequency modulation circuit (2) is by modulation integrated package (IC
2) (5), (6), (2), (1) end, resistance (R
5) (R
6) (R
8), triode (BG
2), electric capacity (C
5) (C
6) (C
7) constitute oscillatory circuit, produce fixed frequency signal, by triode (BG
2) drive and deliver to infrared light emitting diode (3) electric signal is become the infrared ray signal, the quartz glass fully reflecting surface of the cavity (M) of the profiled silex glass carbonated drink linker (4) of infrared signal by having total reflection effect reflexes to infrared receiver diode (5) and light signal is become electric signal sends into multifrequency demodulator circuit (6); Multifrequency demodulator circuit (6) is by resistance (R
1) (R
2) (R
3) (R
4), electric capacity (C
3) (C
4) (C
5) (C
6), triode (BG
1), modulation integrated package (IC
2) (3) (8) ends constitute, the direct current signal that demodulates is delivered to water level signal becomes shifting circuit (7); Water level translation circuit (7) is by resistance (R
7) (R
9), triode (BG
3) constitute, signal is amplified export liquid level signal output terminal SC to, what the having or not of its signal was decided by to have a certain position water in the cavity (M) of profiled silex glass carbonated drink linker (4) of total reflection effect has or not a plurality of (A
1～A
n) infrared ray water level detection circuit and profiled silex glass carbonated drink linker (4) with total reflection effect constituted infrared water level sensor for boiler.
2, according to the described infrared water level sensor for boiler of claim 1, the profiled silex glass carbonated drink linker (4) that it is characterized in that having total reflection effect can be for having profiled silex glass pipe (body) formula of total reflection effect, its structure be cavity (M) in profiled silex glass (H), cavity (M) has a fully reflecting surface (P) to constitute total reflection effect; Also can be profiled silex glass combined type with total reflection effect, its structure is the metal appearance body (G) of cavity (M) by profiled silex glass (H), fully-reflected plane (P) and a trough of belt, is tightened to the boiler carbonated drink linker with total reflection effect with square substrate (N).
3, the described infrared water level sensor for boiler of claim 1 is characterized in that this sensor also can do detections such as other liquid level signals such as light oil, liquid soda acid; Also can make one, keep former gauge glass function with single, double look water meter; Also can combine with colour-changing display screen for boiler water-level, formation sensor, gauge glass, colour-changing display screen three are the product of one; Also can show that control instrument is used with secondary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97219433 CN2300092Y (en) | 1997-06-28 | 1997-06-28 | Infrared boiler water level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97219433 CN2300092Y (en) | 1997-06-28 | 1997-06-28 | Infrared boiler water level sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2300092Y true CN2300092Y (en) | 1998-12-09 |
Family
ID=33935454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97219433 Expired - Fee Related CN2300092Y (en) | 1997-06-28 | 1997-06-28 | Infrared boiler water level sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2300092Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645253A (en) * | 2012-04-26 | 2012-08-22 | 北京宝力马传感技术有限公司 | Photoelectric continuous liquid level measuring method and device |
| CN104535219A (en) * | 2014-12-22 | 2015-04-22 | 深圳市朗特电子有限公司 | Liquid temperature detection system and liquid temperature detection method |
| CN106249743A (en) * | 2016-09-05 | 2016-12-21 | 广州市丹爵通讯科技有限公司 | A kind of real time water level supervising device for drainage system |
| CN106441505A (en) * | 2016-09-05 | 2017-02-22 | 深圳市玖品空气净化科技有限公司 | Intelligent water level monitor applied to water-conservancy sea-beach reclamation engineering |
| CN109632052A (en) * | 2018-12-17 | 2019-04-16 | 中国电子科技集团公司第四十九研究所 | A kind of multimedium liquid level sensor |
| CN112362134A (en) * | 2020-10-28 | 2021-02-12 | 哈尔滨海格微电子科技有限公司 | Liquid level position detection device and detection method |
| CN115903930A (en) * | 2023-03-14 | 2023-04-04 | 山东商业职业技术学院 | Water level measurement control circuit |
-
1997
- 1997-06-28 CN CN 97219433 patent/CN2300092Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645253A (en) * | 2012-04-26 | 2012-08-22 | 北京宝力马传感技术有限公司 | Photoelectric continuous liquid level measuring method and device |
| CN102645253B (en) * | 2012-04-26 | 2014-06-18 | 宝力马（苏州）传感技术有限公司 | Photoelectric continuous liquid level measuring method and device |
| US9194733B2 (en) | 2012-04-26 | 2015-11-24 | Polymer(Suzhou) Sensing Technology Co. Ltd. | Photoelectric-type continuous liquid level measurement method and device |
| CN104535219A (en) * | 2014-12-22 | 2015-04-22 | 深圳市朗特电子有限公司 | Liquid temperature detection system and liquid temperature detection method |
| CN106249743A (en) * | 2016-09-05 | 2016-12-21 | 广州市丹爵通讯科技有限公司 | A kind of real time water level supervising device for drainage system |
| CN106441505A (en) * | 2016-09-05 | 2017-02-22 | 深圳市玖品空气净化科技有限公司 | Intelligent water level monitor applied to water-conservancy sea-beach reclamation engineering |
| CN109632052A (en) * | 2018-12-17 | 2019-04-16 | 中国电子科技集团公司第四十九研究所 | A kind of multimedium liquid level sensor |
| CN112362134A (en) * | 2020-10-28 | 2021-02-12 | 哈尔滨海格微电子科技有限公司 | Liquid level position detection device and detection method |
| CN115903930A (en) * | 2023-03-14 | 2023-04-04 | 山东商业职业技术学院 | Water level measurement control circuit |
| CN115903930B (en) * | 2023-03-14 | 2023-05-09 | 山东商业职业技术学院 | Water level measurement control circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |