CN214377699U - Nuclear power station DCS system architecture - Google Patents
Nuclear power station DCS system architecture Download PDFInfo
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- CN214377699U CN214377699U CN202023166381.0U CN202023166381U CN214377699U CN 214377699 U CN214377699 U CN 214377699U CN 202023166381 U CN202023166381 U CN 202023166381U CN 214377699 U CN214377699 U CN 214377699U
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Abstract
The utility model relates to a nuclear power station DCS system framework, include: the first non-safety-level DCS comprises non-safety-level control display equipment, a first monitoring network, a first server, a first system network and a first control cabinet, wherein the non-safety-level control display equipment, the first monitoring network, the first server, the first system network and the first control cabinet are sequentially connected with the nuclear island operator workstation and the conventional island operator workstation; the second non-safety level DCS comprises non-safety level control display equipment, a second monitoring network, a second server, a second system network and a second gateway cabinet which are connected in sequence, wherein the non-safety level control display equipment is arranged at a unit length workstation and a safety engineer station; and the safety level DCS comprises a safety level control display device, a safety bus and a second control cabinet which are sequentially connected with the nuclear island operator workstation, the conventional island operator workstation, the long unit workstation and the safety engineer station. This nuclear island operator workstation and conventional island operator workstation adopt first non-security level DCS to realize, and unit length workstation and safety engineer station adopt second non-security level DCS to realize, compare current scheme, cancel conventional dish platform, simplify main control room system scale.
Description
Technical Field
The utility model relates to a nuclear power engineering technical field especially relates to nuclear power station DCS system framework.
Background
The main control room is a monitoring center of the nuclear power station, provides a human-computer interface and related information and equipment required by the realization of the operation target of the reactor for operators, and has the main function of monitoring and controlling the reactor under various operation states and accident conditions so as to ensure the effective and safe operation of the nuclear power station.
Currently, a nuclear power plant master control room is provided with four workstations (OWP) with identical configurations: the system comprises a nuclear island operator workstation, a conventional island operator workstation, a unit length workstation and a safety engineer station, wherein the four workstations are mutually redundant but have different management authorities: under the normal state, the first two workstations are in an operation mode and are responsible for monitoring safety and non-safety systems and equipment of the nuclear power station; the latter two workstations are in a monitoring mode, without operating authority, and execute control functions only when the nuclear island and conventional island operator workstations fail. The four workstations are realized by adopting the same set of non-safety-level DCS, and when the workstations do not meet the minimum configuration (at least one workstation needs to be kept available under a normal working condition and at least two workstations need to be kept available under an accident working condition), an operator needs to transfer to a backup panel (BUP) for operation.
The BUP is provided with a conventional display instrument, a hard hand operation, an indicator light, a safety level control display device, a parameter monitoring screen after an accident, an alarm window and the like, has the functions of parameter monitoring after the accident and alarm by a light word board, can maintain 4-hour steady state operation when a workstation is unavailable, and can bring a reactor to a safe shutdown state and maintain the reactor in the safe shutdown state if the workstation is not recovered after 4 hours.
The nuclear power station master control room system has the advantages that the number of devices is large, the space scale is large, and the design scheme of the master control room with very limited building space cannot meet the requirements.
The BUP in the above invention or design is a conventional disc table, and is completely different from OWP digital equipment, and the two different man-machine interface modes may cause problems of human failure, reduced working efficiency and the like.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in that, a nuclear power station DCS system framework is provided.
The utility model provides a technical scheme that its technical problem adopted is: constructing a nuclear power station DCS system architecture, which comprises a main control room workstation, a first non-safety level DCS, a second non-safety level DCS and a safety level DCS; the main control room workstation comprises a nuclear island operator workstation, a conventional island operator workstation, a unit length workstation and a safety engineer station, wherein the nuclear island operator workstation, the conventional island operator workstation, the unit length workstation and the safety engineer station are all provided with non-safety control display equipment and safety control display equipment;
the first non-safety-level DCS comprises a first monitoring network, a first server, a first system network and a first control cabinet which are sequentially in communication connection; the non-safety-level control display equipment on the nuclear island operator workstation and the conventional island operator workstation are respectively connected with the first monitoring network, and the first control cabinet is connected with non-safety-level field equipment;
the second non-safety-level DCS comprises a second monitoring network, a second server, a second system network and a second gateway cabinet which are sequentially in communication connection; the non-safety level control display equipment on the unit length workstation and the safety engineer station are respectively connected with the second monitoring network, and the second gateway cabinet is connected with the first control cabinet;
safety level DCS includes safety bus and the second switch board that communicates in proper order and connect, nuclear island operator workstation conventional island operator workstation the unit length workstation reaches safety level control display device on the safety engineer station respectively with safety bus connects, the second switch board is connected with the field device of safety level.
Preferably, the security level DCS further includes a third control cabinet and a data transmission cabinet, which are in communication connection in sequence; the third control cabinet is connected with the field device of the safety level; the data transmission cabinet is connected with the safety bus.
Preferably, the first non-security level DCS includes a first gateway cabinet connected to the first system network, and the second non-security level DCS includes a fourth gateway cabinet connected to the second monitoring network;
the security level DCS also comprises a security level system bus and a third gateway cabinet which are sequentially connected, the security level system bus is respectively connected with the third control cabinet, the data transmission cabinet and the fourth gateway cabinet, and the other end of the third gateway cabinet is connected with the first gateway cabinet.
Preferably, the first control cabinet, the second control cabinet and the third control cabinet are all provided with an I/O module and a controller which are connected with each other.
Implement the utility model discloses following beneficial effect has: in the DCS system architecture of the nuclear power station, a nuclear island operator workstation and a conventional island operator workstation are realized by adopting a first non-safety-level DCS, and a long unit workstation and a safety engineer workstation are realized by adopting a second non-safety-level DCS, compared with the prior art, the method has the advantages that a conventional plate platform BUP is cancelled, the workstation realized by the second non-safety-level DCS replaces the conventional plate platform to serve as a standby monitoring means, the human interface similarity of main and standby control means in a main control room is ensured, the working efficiency of operators is effectively improved, and the human error of the operators is reduced; meanwhile, the system of the master control room is more compact, and the efficiency of operators and monitoring equipment can be exerted to the maximum extent.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
fig. 1 is the structure schematic diagram of the nuclear power station DCS system architecture of the present invention.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "upper", "lower", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", etc. are configured and operated in specific directions based on the directions or positional relationships shown in the drawings, and are only for convenience of describing the present invention, but do not indicate that the device or element referred to must have a specific direction, and thus, should not be construed as limiting the present invention.
It is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or intervening elements may also be present. The terms "first", "second", "third", etc. are only for convenience in describing the present technical solution, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of such features. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
As shown in fig. 1, it is the utility model discloses a nuclear power station DCS system architecture, including main control room workstation, first non-safety level DCS100, second non-safety level DCS200 and safety level DCS 300. The main control room workstation comprises a nuclear island operator workstation 15, a conventional island operator workstation 16, a unit leader workstation 25 and a safety engineer station 26, wherein the nuclear island operator workstation 15, the conventional island operator workstation 16, the unit leader workstation 25 and the safety engineer station 26 are respectively provided with a non-safety level control display device (NC-VDU) and a safety level control display device (S-VDU).
In this embodiment, the first non-security level DCS100 includes a first monitoring network 11, a first server 12, a first system network 13, and a first control cabinet 14, which are sequentially connected in a communication manner; the non-safety level control display devices on the nuclear island operator workstation 15 and the conventional island operator workstation 16 are respectively connected with the first monitoring network 11, and the first control cabinet 14 is connected with non-safety level field devices.
When the first non-safety-level DCS100 is operating normally, the first control cabinet 14 collects information data from non-safety-level field devices for processing, and transmits the processed information data to the NC-VDU of the nuclear island operator workstation 15 and the NC-VDU of the conventional island operator workstation 16 through the first system network 13, the first server 12, and the first monitoring network 11. The nuclear island operator workstation 15 and the conventional island operator workstation 16 send control commands to the non-safety field devices through the NC-VDU via the first monitoring network 11, the first server 12, the first system network 13, and the first control cabinet 14.
In this embodiment, the second non-security level DCS200 includes a second monitoring network 21, a second server 22, a second system network 23, and a second gateway cabinet 24, which are sequentially connected in a communication manner; the non-safety level control display devices on the unit length workstation 25 and the safety engineer station 26 are respectively connected with the second monitoring network 21, and the second gateway cabinet 24 is connected with the first control cabinet 14.
When the second non-safety-level DCS200 is operating normally, the first control cabinet 14 transmits the processed data to the NC-VDU of the group leader workstation 25 and the safety engineer station 26 respectively through the second gateway cabinet 24, the second system network 23, the second server 22 and the second monitoring network 21.
The unit leader workstation 25 and the security engineer station 26 send the control command to the non-security field device through the NC-VDU via the second monitoring network 21, the second server 22, the second system network 23, the second gateway cabinet 24, and the first control cabinet 14.
In this embodiment, the safety level DCS300 includes a safety bus 31 and a second control cabinet 32, which are sequentially connected in a communication manner, and safety level control display devices on the nuclear island operator workstation 15, the conventional island operator workstation 16, the unit leader workstation 25, and the safety engineer station 26 are respectively connected to the safety bus 31, and the second control cabinet 32 is connected to a safety level field device.
The second control cabinet 32 collects information from the safety-level field devices for processing, and transmits the processed data to the S-VDUs of the nuclear island operator workstation 15, the conventional island operator workstation 16, the crew workstation 25, and the safety engineer station 26 through the safety bus 31.
The nuclear island operator workstation 15, the conventional island operator workstation 16, the unit leader workstation 25 and the safety engineer station 26 send control instructions to the safety-level field devices through the S-VDU via the safety bus 31 and the second control cabinet 32.
In this embodiment, the safety DCS300 further includes a third control cabinet 33 and a data transmission cabinet 34, which are sequentially connected in a communication manner, where the third control cabinet 33 is connected to a safety field device, and the data transmission cabinet 34 is connected to the safety bus 31.
The third control cabinet 33 collects information from the safety-level field devices for processing, and transmits the processed data to the S-VDUs of the nuclear island operator workstation 15, the conventional island operator workstation 16, the crew station 25, and the safety engineer station 26 through the data transmission cabinet 34 and the safety bus 31, respectively.
The nuclear island operator workstation 15, the conventional island operator workstation 16, the unit leader workstation 25 and the safety engineer station 26 send control instructions to the safety-level field devices through the S-VDU via the safety bus 31, the data transmission cabinet 34 and the third control cabinet 33.
In this embodiment, the first non-secure DCS100 further includes a first gateway cabinet 17 connected to the first system network 13, the second non-secure DCS200 includes a fourth gateway cabinet 27 connected to the second monitoring network 21, the secure DCS300 further includes a secure system bus 35 and a third gateway cabinet 36 connected in sequence, the secure system bus 35 is connected to the third control cabinet 33, the data transmission cabinet 34 and the fourth gateway cabinet 27, and the other end of the third gateway cabinet 36 is connected to the first gateway cabinet 17.
The second control cabinet 32 collects information from the safety-level field devices for processing, and transmits the processed data to the NC-VDU of the nuclear island operator workstation 15 and the conventional island operator workstation 16 through the safety bus 31, the data transmission cabinet 34, the safety-level system bus 35, the third gateway cabinet 36, the first gateway cabinet 17, the first system network 13, the first server 12, and the first monitoring network 11, respectively. Meanwhile, the second control cabinet 32 transmits the processed data to the NC-VDU of the unit leader workstation 25 and the security engineer station 26 through the security bus 31, the data transmission cabinet 34, the security level system bus 35, the fourth gateway cabinet 27, and the second monitoring network 21, respectively.
The third control cabinet 33 collects information from the safety-level field devices for processing, and transmits the processed data to the NC-VDU of the nuclear island operator workstation 15 and the conventional island operator workstation 16 through the safety-level system bus 35, the third gateway cabinet 36, the first gateway cabinet 17, the first system network 13, the first server 12, and the first monitoring network 11, respectively. Meanwhile, the third control cabinet 33 transmits the processed data to the NC-VDU of the organization leader workstation 25 and the security engineer station 26 through the security level system bus 35, the fourth gateway cabinet 27, and the second monitoring network 21, respectively.
Preferably, the nuclear island operator workstation 15 is provided with an NC-VDU151, an S-VDU 152; the conventional island operator workstation 16 is provided with an NC-VDU161, an S-VDU 162; the unit leader workstation 25 is provided with an NC-VDU251 and an S-VDU 252; the safety engineer station 26 is provided with an NC-VDU261 and an S-VDU 262.
Preferably, the first control cabinet 14, the second control cabinet 32 and the third control cabinet 33 are all provided therein with I/O modules and controllers connected to each other, which mainly complete data acquisition and control output, communication with other control cabinets, and the like.
The first server 12 and the second server 22 perform functions of data communication, calculation service, historical data storage, and the like; the first gateway cabinet 17, the second gateway cabinet 24, the third gateway cabinet 36 and the fourth gateway cabinet 27 mainly complete communication functions among different DCS platforms; the data transmission cabinet 34 is mainly used for information exchange.
In this embodiment, the nuclear island operator workstation 15 and the conventional island operator workstation 16 are implemented by using the same non-security level DCS, and are configured as redundancy with each other; the unit leader workstation 25 and the security engineer station 26 are implemented by another non-security level DCS, and are configured as redundancies. The 4 workstations are configured identically, but employ different DCS platforms.
When the two non-safety-level DCS platforms normally operate, the configuration conditions of the four workstations are the same as those of the prior art. Because the probability of failure of both the two non-safety-level DCS platforms is extremely low, only the failure condition of one DCS platform is considered, at the moment, a nuclear island operator and a conventional island operator monitor the nuclear power station on a normal workstation, and a unit length and a safety engineer monitor the nuclear power station beside the nuclear power station. This embodiment ensures that at least two workstations remain available at any time, always meeting the minimum configuration of the workstations.
Compared with the prior art, the nuclear power station DCS system has the advantages that BUP is eliminated, conventional monitoring equipment and hard-wired I/O points are reduced, the system and the design scale of a main control room are simplified, and a compact main control room arrangement scheme is constructed on the premise that basic functions are guaranteed; and the first non-safety-level DCS and the second non-safety-level DCS have the same human-computer interface, so that the working efficiency of operators is effectively improved, and human errors of the operators are reduced.
It is to be understood that the foregoing examples merely represent preferred embodiments of the present invention, and that the description thereof is more specific and detailed, but not intended to limit the scope of the invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (4)
1. A nuclear power station DCS system architecture is characterized by comprising a main control room workstation, a first non-safety level DCS (100), a second non-safety level DCS (200) and a safety level DCS (300); the main control room workstation comprises a nuclear island operator workstation (15), a conventional island operator workstation (16), a unit length workstation (25) and a safety engineer station (26), wherein the nuclear island operator workstation (15), the conventional island operator workstation (16), the unit length workstation (25) and the safety engineer station (26) are respectively provided with non-safety level control display equipment and safety level control display equipment;
the first non-safety-level DCS (100) comprises a first monitoring network (11), a first server (12), a first system network (13) and a first control cabinet (14) which are sequentially in communication connection; non-safety-level control display equipment on the nuclear island operator workstation (15) and the conventional island operator workstation (16) are respectively connected with the first monitoring network (11), and the first control cabinet (14) is connected with non-safety-level field equipment;
the second non-safety-level DCS (200) comprises a second monitoring network (21), a second server (22), a second system network (23) and a second gateway cabinet (24) which are in communication connection in sequence; non-safety level control display equipment on the unit length workstation (25) and the safety engineer station (26) are respectively connected with the second monitoring network (21), and the second gateway cabinet (24) is connected with the first control cabinet (14);
safety level DCS (300) are including safety bus (31) and second switch board (32) that the communication is connected in proper order, nuclear island operator workstation (15) conventional island operator workstation (16) unit owner workstation (25) reaches safety level control display device on safety engineer station (26) respectively with safety bus (31) are connected, second switch board (32) are connected with the field device of safety level.
2. The nuclear power plant DCS system architecture of claim 1, wherein the safety level DCS (300) further comprises a third control cabinet (33), a data transmission cabinet (34) which are in communication connection in sequence; the third control cabinet (33) is connected with the field device of the safety level; the data transmission cabinet (34) is connected with the safety bus (31).
3. The nuclear power plant DCS system architecture of claim 2, wherein the first non-safety DCS (100) comprises a first gateway cabinet (17) connected to the first system network (13), and the second non-safety DCS (200) comprises a fourth gateway cabinet (27) connected to the second supervisory network (21);
the security level DCS (300) further comprises a security level system bus (35) and a third gateway cabinet (36) which are connected in sequence, the security level system bus (35) is connected with the third control cabinet (33), the data transmission cabinet (34) and the fourth gateway cabinet (27) are connected respectively, and the other end of the third gateway cabinet (36) is connected with the first gateway cabinet (17).
4. The nuclear power plant DCS system architecture according to claim 3, wherein said first control cabinet (14), said second control cabinet (32) and said third control cabinet (33) are provided with I/O modules and controllers therein, which are connected to each other.
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| CN202023166381.0U CN214377699U (en) | 2020-12-24 | 2020-12-24 | Nuclear power station DCS system architecture |
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| CN202023166381.0U CN214377699U (en) | 2020-12-24 | 2020-12-24 | Nuclear power station DCS system architecture |
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| CN214377699U true CN214377699U (en) | 2021-10-08 |
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