CN203798411U - Boiler water level detector - Google Patents
Boiler water level detector Download PDFInfo
- Publication number
- CN203798411U CN203798411U CN201420213964.XU CN201420213964U CN203798411U CN 203798411 U CN203798411 U CN 203798411U CN 201420213964 U CN201420213964 U CN 201420213964U CN 203798411 U CN203798411 U CN 203798411U
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- CN
- China
- Prior art keywords
- water level
- level electrode
- compensating element
- electrode
- boiler
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- Expired - Fee Related
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Abstract
The utility model relates to a boiler water level detector comprising a high level electrode, a low level electrode, and a very low level electrode. The high level electrode, the low level electrode and the very low level electrode are jointly connected with a compensating element set; the compensating element set is connected with three switch output devices and is connected with a power supply. A resistor and a potentiometer are added to the original system to serve as compensating elements, signals detected by the system are subjected to 10-30mV signal compensation, the system can stably operate by adjusting and setting the potentiometer, and accordingly the water level can be normally detected without demounting the electrodes during navigation and damage of a boiler is avoided.
Description
Technical field
The utility model relates to a kind of boiler water level detector.
Background technology
Spot ship boiler drum water level protection monitoring system generally adopts two types of electric pole type and differential pressure transporting formulas.Electrode boiler water level protection monitoring system is because detecting electrode is immersed in boiler water for a long time; therefore detecting electrode surface is very easy to form dirt; and there is the reasons such as aging and characteristic drift in detection system electric components; can cause water level detecting sensitivity to occur changing; can not normally detect water level situation, be inconvenient to again dismantle during use safeguard, cause boiler water level false alarm or even do not report to the police; thereby make boiler dry combustion method, damage boiler.
Summary of the invention
The purpose of this utility model is in order to overcome above deficiency, and a kind of good stability, electrode long, applied widely boiler water level detector maintenance period are provided.
The purpose of this utility model is achieved through the following technical solutions: a kind of boiler water level detector, comprise high water level electrode, low water level electrode and utmost point low water level electrode, high water level electrode, low water level electrode and utmost point low water level electrode are connected with a compensating element, group jointly, compensating element, group is connected with three switching value output units, and compensating element, group is connected with power supply.
Further improvement of the utility model is: in compensating element, group, be provided with three compensating element,s, one end of three compensating element,s is connected with high water level electrode, low water level electrode and utmost point low water level electrode respectively, and the other end of three compensating element,s is connected with three switching value output units respectively.
Further improvement of the utility model is: compensating element, comprises a resistance and a potentiometer, resistance and potentiometer series connection.
Further improvement of the utility model is: compensating element, group, for adjusting corresponding adjustable resistance, is carried out the signal compensation of 10-30mV to signal.
The utility model compared with prior art has the following advantages: the utility model has been avoided because the boiler drum water level protection that electric pole type water level protection detection system electric components is aging and characteristic drift causes is malfunctioning, both ensure the safe operation of boiler, saved again the expensive expense that transformation and replacing system produce; The utility model has extended the maintenance cycle of detecting electrode: by the compensation to system sensitivity, can extend one times of above detecting electrode maintenance period, facilitate the management of crewman to boiler; The utility model scope of application is wider: this compensating circuit is suitable for the boiler of great majority employing electric pole type water level protection monitoring system.
brief description of the drawings:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of compensating element, group;
Fig. 3 is fundamental diagram of the present utility model;
Number in the figure: 1-high water level electrode, 2-low water level electrode, 3-utmost point low water level electrode, 4-compensating element, group, 5-switching value output unit, 6-power supply, 7-resistance, 8-potentiometer.
embodiment:
in order to deepen understanding of the present utility model, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, and this embodiment only, for explaining the utility model, does not form the restriction to the utility model protection domain.
As Fig. 1 shows a kind of embodiment of the utility model boiler water level detector, comprise high water level electrode 1, low water level electrode 2 and utmost point low water level electrode 3, high water level electrode 1, low water level electrode 2 and utmost point low water level electrode 3 are connected with a compensating element, group 4 jointly, compensating element, group 4 is connected with three switching value output units 5, and compensating element, group is connected with power supply 6.As shown in Figure 2, in compensating element, group 4, be provided with three compensating element,s, one end of three compensating element,s is connected with high water level electrode 1, low water level electrode 2 and utmost point low water level electrode 3 respectively, the other end of three compensating element,s is connected with three switching value output units 5 respectively, compensating element, comprises a resistance 7 and a potentiometer 8, resistance 7 and potentiometer 8 are connected, and compensating element, group 4, for adjusting corresponding adjustable resistance, is carried out the signal compensation of 10-30mV to signal.
As shown in Figure 3, in the time that electrode detection is exported without switching value to signal corresponding after water level, compensating element, group is adjusted corresponding adjustable resistance, signal is carried out to the signal compensation of 10-30mV, and corresponding signal has switching value output afterwards.The utility model adds resistance and potentiometer element by way of compensation on original system, the signal that system is detected carries out the signal compensation of 10-30mV, adjusting by potentiometer is set, make the stable operation of system energy, need not dismantle electrode at term of voyage like this and also can make water potential normally detect, avoid the damage of boiler.
It is malfunctioning due to the boiler drum water level protection that electric pole type water level protection detection system electric components is aging and characteristic drift causes that the utility model has been avoided, and both ensured the safe operation of boiler, saved again the expensive expense that transformation and replacing system produce; The utility model has extended the maintenance cycle of detecting electrode: original system is high to the maintaining requirement of detecting electrode, the cycle is extremely short, when crew management, be easy to carelessness, and increase after sensitivity control and compensation circuit, by the compensation to system sensitivity, can extend one times of above detecting electrode maintenance period, facilitate the management of crewman to boiler; The utility model scope of application is wider: this compensating circuit is suitable for the boiler of great majority employing electric pole type water level protection monitoring system.
Claims (3)
1. a boiler water level detector, comprise high water level electrode (1), low water level electrode (2) and utmost point low water level electrode (3), it is characterized in that: described high water level electrode (1), described low water level electrode (2) and described utmost point low water level electrode (3) are connected with a compensating element, group (4) jointly, described compensating element, group (4) is connected with three switching value output units (5), and described compensating element, group is connected with power supply (6).
2. a kind of boiler water level detector according to claim 1, it is characterized in that: in described compensating element, group (4), be provided with three compensating element,s, one end of three compensating element,s is connected with described high water level electrode (1), described low water level electrode (2) and described utmost point low water level electrode (3) respectively, and the other end of three compensating element,s is connected with three switching value output units (5) respectively.
3. according to a kind of boiler water level detector described in claim 1 or 2, it is characterized in that: described compensating element, comprises a resistance (7) and a potentiometer (8) described resistance (7) and potentiometer (8) series connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420213964.XU CN203798411U (en) | 2014-04-29 | 2014-04-29 | Boiler water level detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420213964.XU CN203798411U (en) | 2014-04-29 | 2014-04-29 | Boiler water level detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203798411U true CN203798411U (en) | 2014-08-27 |
Family
ID=51380616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420213964.XU Expired - Fee Related CN203798411U (en) | 2014-04-29 | 2014-04-29 | Boiler water level detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203798411U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103983321A (en) * | 2014-04-29 | 2014-08-13 | 南通中远船务自动化有限公司 | Boiler water level detector |
-
2014
- 2014-04-29 CN CN201420213964.XU patent/CN203798411U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103983321A (en) * | 2014-04-29 | 2014-08-13 | 南通中远船务自动化有限公司 | Boiler water level detector |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20200429 |