Signal triggering device of high-temperature gas cooled reactor protection system

Abstract

The invention belongs to the technical field of instrument control of high-temperature gas cooled reactor protection systems, and particularly relates to a signal triggering device of a high-temperature gas cooled reactor protection system. Comprising a signal acquisition and distribution device, a signal processing device and a signal driving device, the signal acquisition and distribution device receives in-situ instrument signals, processes the in-situ instrument signals and outputs the processed in-situ instrument signals to the signal processing device, and the signal processing device processes the signals and outputs the processed signals to the signal driving device. The system has the advantages that functions of devices for achieving all functions in an original protection system are combined, the number of the four driving devices is reduced to two from original four, the number of all the devices is reduced to 10 from original 16, the structure is more compact, the number of devices is reduced, equipment investment is reduced, and the cost is reduced. And reference significance is provided for the architecture design of the same type of high-temperature gas cooled reactor protection system.

Description

Technical Field

[0001] The invention belongs to the technical field of instrumentation and control of a high-temperature gas-cooled reactor protection system, and in particular relates to a signal triggering device for a high-temperature gas-cooled reactor protection system. Background Art

[0002] The high temperature gas-cooled reactor protection system (hereinafter referred to as the protection system) is mainly used to realize the emergency shutdown of the reactor and the triggering function of the dedicated safety facilities. The protection system collects the on-site instrument signals, and after internal signal processing, outputs the reactor emergency shutdown drive signal and the dedicated safety facility drive signal.

[0003] The signal triggering process of the current high temperature reactor protection system is roughly as follows:

[0004] 1. Each of the four signal acquisition devices collects a local instrument signal to isolate and condition the signal;

[0005] 2. The four signal distribution devices receive the signals from one signal acquisition device respectively and send them to four signal processing devices respectively;

[0006] 3. The four signal processing devices receive the signals from the four signal distribution devices respectively, perform 2-out-of-4 logic processing, and send them to the signal driving device;

[0007] 4. The four signal driving devices receive signals from a signal processing device respectively, and output their own emergency shutdown driving signals after internal processing; signal driving devices 1 and 2 receive signals from four signal processing devices respectively, and output their own dedicated safety facility driving signals after internal four-to-two logic processing.

[0008] The main problems with the original design are:

[0009] 1. The functions of the collection device and the distribution device are single, and the system integration is not high, resulting in a waste of equipment resources. Integrated optimization can be carried out;

[0010] 2. The emergency shutdown drive signal and the dedicated safety facility drive signal are processed differently inside the signal drive device. They do not need to undergo four-out-of-two logic processing, and their functions are relatively simple. The distribution and output method of the drive signal can be further optimized. Summary of the invention

[0011] The purpose of the present invention is to provide a signal triggering device for a high temperature gas-cooled reactor protection system, which has more reasonable signal distribution and triggering mode, improves system integration and reduces equipment investment.

[0012] The technical solution of the present invention is as follows: a signal triggering device for a high-temperature gas-cooled reactor protection system, comprising a signal acquisition and distribution device, a signal processing device and a signal driving device. The signal acquisition and distribution device receives local instrument signals and outputs them to the signal processing device after processing. The signal processing device outputs the processed signals to the signal driving device.

[0013] The acquisition and distribution device comprises four signal acquisition and distribution devices.

[0014] The signal processing device includes 4 signal processing devices.

[0015] The signal driving device comprises two signal driving devices.

[0016] Each of the signal acquisition and distribution devices receives a local instrument signal, isolates and conditions the signal, and distributes it to four signal processing devices.

[0017] The four signal processing devices respectively receive signals from the four signal acquisition and distribution devices, perform four-to-two logic processing, and then directly output emergency shutdown driving signals, and send the processed signals to the two signal driving devices respectively.

[0018] The two signal driving devices receive signals from the four signal processing devices respectively, and output respective dedicated safety equipment driving signals after internal processing.

[0019] The beneficial effects of the present invention are as follows: the functions of the devices realizing various functions within the original protection system are merged, the four driving devices are reduced from the original four to two, and all the devices are reduced from the original 16 to 10, the structure is more compact, the number of devices is reduced, and the equipment investment is reduced, which has reference significance for the architecture design of the same type of high-temperature gas-cooled reactor protection system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the signal triggering device of the original protection system;

[0021] Figure 2 This is a schematic diagram of a signal triggering device for a high-temperature gas-cooled reactor protection system provided by the present invention.

[0022] In the figure: 1 local instrument signal, 2 signal acquisition device, 3 signal distribution device, 4 signal processing device, 5 signal driving device, 6 dedicated safety facility driving signal, 7 emergency shutdown driving signal, 11 local instrument signal, 12 signal acquisition and distribution device, 13 signal processing device, 14 signal driving device, 15 emergency shutdown driving signal, 16 dedicated safety facility driving signal. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] A signal trigger device for a high-temperature gas-cooled reactor protection system provided by the present invention combines a signal acquisition device and a signal distribution device into a signal acquisition and distribution device according to the characteristics of a high-temperature gas-cooled reactor, so as to collect and distribute local signals; a signal processing device receives the signal of the signal acquisition and distribution device and directly outputs an emergency shutdown drive signal after internal processing; a signal drive device receives the signal of the signal processing device and outputs a dedicated safety facility drive signal after internal processing.

[0025] like Figure 2 As shown, a signal trigger device for a high-temperature gas-cooled reactor protection system includes a signal acquisition and distribution device 12, a signal processing device 13 and a signal driving device 14. The acquisition and distribution device 12 includes 4 signal acquisition and distribution devices, the signal processing device 13 includes 4 signal processing devices, and the signal driving device 14 includes two signal driving devices. Each signal acquisition and distribution device receives a local instrument signal 11 and then isolates and conditions the signal and distributes it to four signal processing devices. The four signal processing devices receive the signals from the four signal acquisition and distribution devices respectively, perform four-to-two logic processing, and then directly output emergency shutdown driving signals 15. The processed signals are sent to the two signal driving devices respectively. The two signal driving devices receive the signals from the four signal processing devices respectively, and output their own dedicated safety equipment driving signals 16 after internal processing.

Claims

1. A signal triggering device for a high temperature gas-cooled reactor protection system, characterized in that: It includes a signal acquisition and distribution device, a signal processing device and a signal driving device. The signal acquisition and distribution device receives the local instrument signal and outputs it to the signal processing device after processing. The signal processing device outputs it to the signal driving device after processing.

2. A signal triggering device for a high temperature gas-cooled reactor protection system according to claim 1, characterized in that: The acquisition and distribution device comprises four signal acquisition and distribution devices.

3. A signal triggering device for a high temperature gas-cooled reactor protection system according to claim 1, characterized in that: The signal processing device includes 4 signal processing devices.

4. A signal triggering device for a high temperature gas-cooled reactor protection system according to claim 1, characterized in that: The signal driving device comprises two signal driving devices.

5. A signal triggering device for a high temperature gas-cooled reactor protection system as claimed in claim 2, characterized in that: Each of the signal acquisition and distribution devices receives a local instrument signal, isolates and conditions the signal, and distributes it to four signal processing devices.

6. A signal triggering device for a high temperature gas-cooled reactor protection system according to claim 3, characterized in that: The four signal processing devices respectively receive signals from the four signal acquisition and distribution devices, perform four-to-two logic processing, and then directly output emergency shutdown driving signals, and send the processed signals to the two signal driving devices respectively.

7. A signal triggering device for a high temperature gas-cooled reactor protection system according to claim 4, characterized in that: The two signal driving devices receive signals from the four signal processing devices respectively, and output respective dedicated safety equipment driving signals after internal processing.

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