CN2580301Y - Real-time detector for boiler scale - Google Patents

Abstract

A boiler scale real-time detection device belongs to the technical field of civil hot water boilers. The purpose of the utility model is to provide a detection device to improve the scale removal effect. The utility model includes an electrode, an excitation power supply connected to the electrode and the boiler furnace body, a power supply, and a sensor for converting the current signal of the circuit formed by the excitation power supply, the electrode, the water in the upper water jacket of the boiler and the boiler furnace body into an analog signal, Amplifier to amplify the analog signal output by the sensor, A/D module to convert the amplified analog signal into digital signal, data acquisition unit to collect effective digital signal, single-chip microcomputer detection system to analyze and process effective digital signal, display single-chip microcomputer The result display unit of the analysis result of the detection system, and the alarm unit that needs to issue a warning to the analysis result of the single-chip microcomputer detection system, the utility model can well detect the fouling in the boiler in real time, so that the staff can timely remove the fouling in the boiler limescale.

Description

A real-time detection device for boiler fouling

technical field

A boiler scaling real-time detection device belongs to the technical field of civil hot water boilers.

Background technique

In a hot water boiler system, there are various factors that affect thermal efficiency, among which boiler fouling is one of the most important factors. After the boiler is used for a long time, the scale substances contained in the water - calcium and magnesium salts will form scale in various ways. At present, the boiler system is equipped with softening water devices, scale removers and other equipment to deal with scale. The fouling in the boiler is regularly treated by these devices. However, this descaling method without feedback is very unreliable. Once human error or equipment function failure, the scale in the furnace will continue to increase. And this process is often not easy to be noticed, so the descaling effect is not good.

Contents of the invention

The purpose of the utility model is to provide a device for real-time detection of scaling in the boiler, through which a descaling scheme can be obtained through the detection results, thereby improving the descaling effect.

A boiler scale real-time detection device described in the utility model includes an electrode 7 extending from the upper water jacket 3 of the boiler into the water pipe 1, and a signal detection and processing device, which is characterized in that the signal detection and processing device includes: The excitation power connected to the electrode 7 and the boiler furnace body 4; the power supply for the whole device; the current signal of the loop formed by the excitation power supply, the electrode 7, the water 2 in the boiler upper water jacket 3 and the boiler furnace body 4 is converted into an analog The signal sensor; the amplifier that amplifies the analog signal output by the sensor; the A/D module that converts the amplified analog signal into a digital signal; the data acquisition unit that receives the output signal of the A/D module and collects effective digital signals; A single-chip microcomputer detection system for analyzing and processing digital signals; a result display unit for displaying the analysis results of the single-chip microcomputer detection system; and an alarm unit that needs to issue a warning to the analysis results of the single-chip microcomputer detection system.

The sensor described in the utility model is a current sensor, and the amplifier described is a voltage amplifier.

The utility model adopts a single-chip microcomputer detection system solidified with a conventional PID analysis algorithm in the memory.

The utility model can analyze the detected signal, and judge the result after obtaining the analysis result. If it is within the normal range, the result will be displayed; Warning to remind the staff to descale as soon as possible; if the range is too large, a serious warning will be issued while displaying the result to remind the staff to descale immediately.

Description of drawings

Fig. 1 is a block diagram of the utility model;

Fig. 2 is the application schematic diagram of the utility model;

In the figure: 1. Water pipe; 2. Water; 3. Upper water jacket; 4. Furnace body; 5. Signal detection and processing device; 6. Scale; 7. Electrodes.

The schematic diagram of the utility model is shown in Figure 2. The signal detection and processing device 5 leads to two poles, one pole is connected to the electrode 7 extending into the water pipe 1 from the upper water jacket 3, and the other pole is connected to the furnace body 4 to form a loop, and the two poles are obtained. Loop current to assess the deposition of scale 6.

Detailed ways

The utility model adopts a 36-volt AC excitation power source to generate a voltage between the electrode 7 and the furnace body 4 . The current sensor obtains the loop current and outputs a voltage signal of 10-100 millivolts. The voltage signal is amplified by a standard voltage amplifier and sent to a 12-bit standard A/D module to become a digital signal. The data acquisition unit collects this signal to obtain effective information. This information is sent to the MCS51-8031 single-chip microcomputer detection system. The MCS51-8031 single-chip microcomputer detection system analyzes this information according to the conventional PID analysis algorithm solidified in its memory, obtains the analysis result, and judges the result. If it is within the normal range, then Send this result to the LCD liquid crystal display, and the LCD liquid crystal display will display the result. If it slightly exceeds the normal range, the result will be sent to the LCD liquid crystal display, and the LCD liquid crystal display will display the result; at the same time, the MCS51-8031 single-chip microcomputer detection system will send a general warning signal to the alarm, and the alarm will issue a general warning to remind the staff to remove the alarm as soon as possible. dirt. If the range is too large, the result will be sent to the LCD liquid crystal display, and the LCD liquid crystal display will display the result; at the same time, the MCS51-8031 single-chip microcomputer detection system will send a serious warning signal to the siren, and the siren will send out a serious warning to remind the staff to proceed immediately. Descale.

The utility model can well detect the scale in the boiler in real time, so that the staff can remove the scale in the boiler in time.

Claims (3)

1, a kind of gyp real-time detection apparatus, comprise from boiler water filling cover (3) and extend into electrode (7) the water pipe (1), signal detection and treating apparatus is characterized in that described signal detection and treating apparatus include the excitation power supply that links to each other with electrode (7), boiler furnace (4); Give the power supply of whole device power supply; The current signal in the loop that the water (2) in excitation power supply, electrode (7), the boiler water filling cover (3) and boiler furnace (4) are constituted changes the sensor of analog signal into; The amplifier that the analog signal of sensor output is amplified; The analog signal conversion of amplifying is become the A/D module of data signal; Receive the output signal of A/D module, the data acquisition unit of collection significant digits signal; The single chip microcomputer test system that the significant digits signal is analyzed, handled; The display unit as a result that shows the single chip microcomputer test system analysis result; And the alarm unit that need give a warning to the single chip microcomputer test system analysis result.

2, a kind of gyp real-time detection apparatus according to claim 1 is characterized in that described sensor is a current sensor, and described amplifier is a voltage amplifier.

3, a kind of gyp real-time detection apparatus according to claim 1 and 2 is characterized in that having adopted the single chip microcomputer test system that is solidified with conventional PID parser in internal memory.

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