JPH06123565A - Furnace temperature monitor - Google Patents

Abstract

PURPOSE:To make it possible to inform an operator of the abnormality of a device so as to be easily understood and improve the maintainability of the device by providing a second CPU to read out results of self-diagnosis of a CPU stored in a RAM area and a CRT displayer to display the results of self- diagnosis which are read out by the second CPU. CONSTITUTION:Temperatures in a furnace are detected and the detection signals are inputted through an analogue input unit 4 into a CPU 1, whereupon the CPU 1 conducts temperature operation and its results are outputted to a number displayer 10 through a digital output unit 7. At this moment, the CPU 1 performs self-diagnosis cyclicly and stores the results of self-diagnosis in a RAM area 2. A second CPU 11 reads out information stored in the area 2 to display it on a CRT 12. Consequently, detailed failure information is provided for an operator, and hence failure points can be determined based on the display on the CRT 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reactor temperature monitoring device for monitoring the temperature inside a reactor, for example.

[0002]

2. Description of the Related Art FIG. 3 is a block diagram showing a conventional reactor internal temperature monitoring device. In the figure, 1 is a CPU, 2 is an R
AM, 3 ROM, 4 analog input section, 5 digital input section, 6 analog output section, 7 digital output section, and 8 a detector for outputting temperature data. Reference numeral 9 is an LED display portion, and 10 is a numerical value display portion.

Next, the operation will be described. The temperature inside the reactor is detected by the detector 8. The temperature data of the detector 4 is input to the analog input unit 4, the CPU 1 calculates the temperature, and the calculation result is output to the numerical display 10 via the digital output unit 7. At this time, the CPU 1 carries out self-diagnosis, and outputs the alarms of the items as shown in FIG. 4 to the LED display unit 9 via the digital output unit 7 for display.

[0004]

Since the conventional furnace temperature monitoring device is constructed as described above, the LED display unit 9
However, there is a problem that the number of self-diagnosis items is small and only a high degree of skill is required to identify an abnormality in the device.

The present invention has been made in order to solve the above problems, and an object thereof is to obtain a furnace temperature monitoring device capable of easily communicating an abnormality of the device and improving maintainability. And

[0006]

A furnace temperature monitoring apparatus according to the present invention includes a second CPU for reading out a self-diagnosis result of a CPU stored in a RAM area, and a second CPU.
It is equipped with a CRT display for displaying the self-diagnosis result read by the.

[0007]

The second C of the furnace temperature monitoring device according to the present invention
The PU and CRT indicators inform the operator in more detail about equipment failures.

[0008]

【Example】

Example 1. A furnace temperature monitoring device according to a first embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a first embodiment of the present invention.
It is a block diagram which shows the furnace temperature monitoring apparatus by this. In the figure, 1 to 10 are the same as the conventional ones, and thus the description thereof is omitted.
11 is the second CPU, 12 is the CR displayed by the second CPU
It is a T indicator.

Next, the operation will be described. In FIG. 1, the temperature inside the reactor is detected by a detector 8, the detection signal is input to the CPU 1 through the analog input unit 4, the CPU 1 calculates the temperature, and the calculation result is the digital output unit. It is output to the numerical display 10 via 7. At this time, the CPU 1 periodically performs self-diagnosis, and stores the self-diagnosis result in the RAM area 2. The second CPU 11 is RA
The information stored in the M area 2 is read out and displayed on the CRT 12. FIG. 2 is a screen view showing a display example of the self-diagnosis result displayed on the CRT 12. As shown, detailed failure information is provided to the operator so that the operator can identify the failure site based on the CRT 12 display.

[0010]

As described above, according to the present invention, the RAM
Since the second CPU for reading the self-diagnosis result of the CPU stored in the area and the CRT display for displaying the self-diagnosis result read by the second CPU are provided,
The effect that the abnormality of the device can be more easily understood to the operator and the maintainability can be improved.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a furnace temperature monitoring device according to a first embodiment of the present invention.

FIG. 2 is a screen view showing a display of the in-core monitoring device CRT display in FIG.

FIG. 3 is a configuration diagram showing a conventional furnace temperature monitoring device.

FIG. 4 is a screen view showing a display of an LED display unit of the furnace temperature monitoring device in FIG.

[Explanation of symbols]

 1 CPU 2 RAM 3 ROM 4 Analog input part 5 Digital input part 6 Analog output part 7 Digital output part 8 Detector 9 LED display part 10 Numerical value display device 11 Second CPU 12 CRT display device

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location H03M 7/00 8522-5J

Claims (1)

[Claims] 1. A RAM for calculating a temperature by a CPU that periodically performs self-diagnosis of a detection signal of a detector that detects the temperature inside the furnace.
In a furnace temperature monitoring device in which the self-diagnosis result is displayed on a display and the temperature calculation result is displayed on a numerical display, the CPU stored in the RAM area
CPU for reading self-diagnosis result of CRT and CRT for displaying self-diagnosis result read by the second CPU
An in-furnace temperature monitoring device comprising: