RU149305U1 - Key block bkl-b basic cabinet complex technical and software means of reliable reliability - Google Patents

Key block bkl-b basic cabinet complex technical and software means of reliable reliability Download PDF

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Publication number
RU149305U1
RU149305U1 RU2014139116/06U RU2014139116U RU149305U1 RU 149305 U1 RU149305 U1 RU 149305U1 RU 2014139116/06 U RU2014139116/06 U RU 2014139116/06U RU 2014139116 U RU2014139116 U RU 2014139116U RU 149305 U1 RU149305 U1 RU 149305U1
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RU
Russia
Prior art keywords
cabinet
key block
bkl
software
control
Prior art date
Application number
RU2014139116/06U
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Russian (ru)
Inventor
Марк Давидович Хочанский
Алексей Маркович Хочанский
Original Assignee
Общество с ограниченной ответственностью "Московский завод "ФИЗПРИБОР"
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Priority to RU2014139116/06U priority Critical patent/RU149305U1/en
Application granted granted Critical
Publication of RU149305U1 publication Critical patent/RU149305U1/en

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Abstract

A key block for switching DC and AC voltage circuits of the base cabinet for automation of control of technological equipment of a power plant, characterized in that it contains at least one chip with a set of cascading Darlington connections, solid-state relays with silver-plated contacts with low energy consumption and contacts for connecting to the output control circuits and output terminal blocks of the cabinet.

Description

The utility model relates to the field of energy and automation and can be used to build automated control systems and technological processes of power plants.
Known block of keys BKL-1-M cabinet UKTS-M unified complex of technical means (UKTS), designed to process discrete signals in accordance with the functional purpose and for the correct and safe control of the mechanisms of nuclear power plants and thermal power plants (TU 25-7192.002-87 "MODERNIZED UNITS UNIFIED COMPLEX OF TECHNICAL MEANS (UKTS-M Blocks). Technical Specifications "(see Appendix).
The BKL-1-M unit is installed in the UKTS-M cabinet, which provides the conditions for its normal functioning.
The UKTS-M cabinet as a whole serves for placement of remote control units, formation of technological protection teams; signaling, analog-discrete signal conversion, logical signal conversion, time delays, voltage conversion, providing in-cabinet connections between blocks and cross terminal blocks.
UKTS performs the functions of controlling technological parameters and controlling equipment of technological systems in accordance with the algorithms specified in UKTS.
In emergency conditions, when the initiating event is generated, UKTS provides the necessary signals for the impact on the mechanisms and electrical fittings of technological safety systems. The mechanisms are started in a certain sequence, the closing / opening of valves occurs in accordance with the logic of the operation of technological systems.
UKTS manages the equipment of technological systems of power plants. The operability of equipment providing the technological process of nuclear power plants is subject to national and international safety requirements.
In UKTS complexes, input (measurement of values) of analog signals takes place, input of discrete signals that determine the state of equipment and technological processes of the NPP power unit, logical processing, output of control and signaling commands by UKTS-M cabinets, in which BKL-1-M key blocks are located.
The key block (BKL-1-M) is designed for galvanic separation of control circuits from power circuits; issuing object number signals by the election system.
The disadvantages of the BKL-1-M unit include:
- low reliability of components;
- high heat dissipation and, as a consequence, the need to install fans in the cabinet where the unit is installed;
- designated service life of 10 years;
- MTBF of 50,000 hours
Known KSO KTPS-PN cabinet for collecting data on the state of the technological equipment of nuclear power plants, consisting of three subracks, one of which is used to install service units: power supplies, voltage control unit, network devices, the second and third are used to install functional units that provide collection analog signals - unified DC and voltage signals, signals from thermocouples and resistance thermocouples, as well as collecting and issuing discrete signals, and the functional blocks have a reserve internal structure of the input signal conversion and combined by a local highway according to the RS-485 standard, which provides the possibility of sequential polling of function blocks with a cycle of less than 20 ms, while filters are built into the function blocks to suppress sinusoidal noise at frequencies of 50 and 60 Hz, while in analog blocks, galvanic isolation in digital circuits and high-precision measuring ADCs are used, and cabinet communication lines from inputs of functional blocks to duplicate concentrators Ana fully (see. Utility Model Patent RU 136608,10.01.2014).
The technical result consists in increasing the reliability of the developed key block (BKL) of the complex of technical and software tools of increased reliability KTPS-PN.
The claimed technical result is achieved as follows. The key block for switching DC and AC voltage circuits of the base cabinet for automation of control of technological equipment of a power plant contains at least one chip with a set of cascading Darlington connections, solid-state relays with silver-plated contacts with low energy consumption and contacts for connecting to output control circuits and output cabinet terminal blocks.
The unit is built using electronic components with low energy consumption and having an increased service life, which does not require the organization of forced ventilation of the cabinet in which it is installed.
The key unit (BKL), located in the base cabinet KTPS-PN basic hardware and software complex of increased reliability KTPS-PN, is designed for galvanic isolation and conversion of AC and DC input signals; control output relays.
BKL-A and BKL1-A
The block provides:
- galvanic isolation and conversion of AC and DC input signals;
- control of output relays.
The unit is made in a unified design, in its design contains contacts for connecting to the output control circuits of individual control units of technological equipment and output terminal blocks of the cabinet. The unit is installed in the individual connectors of a special cross-board located on the input / output terminals of the cabinet.
The BKL block is a group of functional blocks of the cabinet cabinet SB KTPS-PN and is an integral part of the complex of technical and software tools of increased reliability, designed to design automated control and process control systems and transmit information about the state of technical equipment of the cabinet and technological equipment to the upper system block or station level.
The assigned service life of the unit is at least 30 years.
MTBF of at least 200,000 hours
A high MTBF of MTBF is achieved through the use of highly reliable electronic components with an increased service life. The low-power electronic components used in the unit do not require forced ventilation of the cabinet in which the unit is installed.
Additionally, the BKL key block has the following features that are not available in the analogue.
The unit retains all functions when the temperature inside the cabinet rises to + 85 ° C.
The unit allows removal and installation of it back into the cabinet without turning off the power to the cabinet.
The unit provides 200,000 cycles of switching electrical circuits under load.
The technical result in KTPS-PN is achieved by a combination of the above possibilities.

Claims (1)

  1. A key block for switching DC and AC voltage circuits of the base cabinet for automation of control of technological equipment of a power plant, characterized in that it contains at least one chip with a set of cascading Darlington connections, solid-state relays with silver-plated contacts with low energy consumption and contacts for connecting to the output control circuits and output terminal blocks of the cabinet.
RU2014139116/06U 2014-09-29 2014-09-29 Key block bkl-b basic cabinet complex technical and software means of reliable reliability RU149305U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2014139116/06U RU149305U1 (en) 2014-09-29 2014-09-29 Key block bkl-b basic cabinet complex technical and software means of reliable reliability

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2014139116/06U RU149305U1 (en) 2014-09-29 2014-09-29 Key block bkl-b basic cabinet complex technical and software means of reliable reliability

Publications (1)

Publication Number Publication Date
RU149305U1 true RU149305U1 (en) 2014-12-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU2014139116/06U RU149305U1 (en) 2014-09-29 2014-09-29 Key block bkl-b basic cabinet complex technical and software means of reliable reliability

Country Status (1)

Country Link
RU (1) RU149305U1 (en)

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