CN212898877U

CN212898877U - Long-range system that stops that opens of air compressor machine for appearance

Info

Publication number: CN212898877U
Application number: CN202020564644.4U
Authority: CN
Inventors: 周翔; 王臻; 周正兴; 孙伟华
Original assignee: Tianjin Sdic Jinneng Electric Power Co ltd
Current assignee: Tianjin Sdic Jinneng Electric Power Co ltd
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2021-04-06
Anticipated expiration: 2030-04-16

Abstract

The utility model discloses an appearance is with long-range system that opens and stop of air compressor machine, include: DCS system module, first LC card, second LC card, first photoelectric conversion module, air compressor machine, cold machine, electrically operated gate and PLC module do, above-mentioned second photoelectric conversion module, air compressor machine, cold machine, electrically operated gate and PLC module all set up in the air compressor computer lab, its characterized in that do: the output end of the DCS system module is electrically connected with the input end of the first LC card, the start-stop instruction sent by the DCS system module is sent by the first LC card, the output end of the first LC card is electrically connected with the input end of the first photoelectric conversion module, and the second photoelectric conversion module and the remote I/O module are further arranged in the air compressor room. The utility model discloses an increase LC fastener and the long-range IO module of expanded type to realize that the long-range function of opening of centralized control room stops operation air compressor machine, increased the real-time and the rapidity of equipment operation, greatly reduced the operation risk.

Description

Long-range system that stops that opens of air compressor machine for appearance

Technical Field

The utility model relates to a long-range opening stops the system, especially relates to a long-range opening of air compressor machine for appearance stops system.

Background

At present, an auxiliary electric actuating mechanism of an air compressor and a cooling dryer used in a power plant generally operates in an on-site mode, and operation state indication and alarm information of the air compressor and the cooling dryer are transmitted to an on-site PLC system through MODBUS communication or hard wiring signals and then communicated to a DCS system through MODBUS for monitoring by operators (as shown in an attached figure 2 of the specification).

However, the operator can only monitor the operation state of the air compressor remotely, but cannot operate the air compressor remotely (in a centralized control room), and can only start and stop the air compressor locally (in an air compressor room). Because the air compressor for the instrument provides air source guarantee for the normal action of all the pneumatic actuating mechanisms, once a fault occurs or the air consumption with large air quantity can not provide enough air source, therefore, all pneumatic actuating mechanisms can not be opened and closed due to insufficient air source pressure, and the remote place (centralized control room) can not directly operate the start and stop of the air compressor because the existing centralized control room and the air compressor room have a certain distance, in the operation process, if the pressure is insufficient, an operator is required to manually operate and start the air compressor on the spot (an air compressor room) so as to maintain the pressure of the air storage tank of the instrument air source, however, if the operator cannot arrive at the air compressor room in time to start the standby air compressor on the spot, the pneumatic actuator cannot be opened or closed to cause misoperation or failure of important equipment, the real-time performance and the rapidity of operation cannot be guaranteed, the operation risk exists, and the safety and the economical efficiency of power plant equipment are seriously influenced.

Therefore, a system for remotely starting and stopping the air compressor for the instrument is needed, which can solve the problems.

SUMMERY OF THE UTILITY MODEL

In view of the above problem, the utility model aims at providing an appearance is with long-range system of opening that stops of air compressor machine, the utility model discloses an increase LC fastener and the long-range IO module of expanded type to realize that centralized control room is long-range to open the function of opening the operation air compressor machine, increased the real-time and the rapidity of equipment operation, greatly reduced the operational risk.

The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be: appearance is with long-range system that stops of air compressor machine includes: DCS system module, first LC card, second LC card, first photoelectric conversion module, air compressor machine, cold machine, electrically operated gate and PLC module do, above-mentioned second photoelectric conversion module, air compressor machine, cold machine, electrically operated gate and PLC module all set up in the air compressor computer lab, its characterized in that do: the output end of the DCS system module is electrically connected with the input end of the first LC card, the start-stop instruction sent by the DCS system module is sent by the first LC card, the output end of the first LC card is electrically connected with the input end of the first photoelectric conversion module, a second photoelectric conversion module and a remote I/O module are also arranged in the air compressor room, the second photoelectric conversion module is connected with the first photoelectric conversion module through optical fibers, the output end of the second photoelectric conversion module is respectively connected with the air compressor, the cold dryer and the electric door, the output end of the air compressor is connected with the PLC module through a first MODBUS communication line, the cold machine is connected with the PLC modules through first hard wires, and the electric door is connected with the PLC modules through second hard wires.

Further, the remote I/O module is provided with 16 pairs of DO contacts, and each pair of DO contacts are respectively connected to the air compressor through a first relay hard wire, the cold air dryer through a second relay hard wire and the electric door through a third relay hard wire.

Further, be provided with the second LC card outside the air compressor machine room, PLC's output passes through second MODBUS communication line and sets up the second LC card interconnect outside the air compressor machine room, this second LC card the output with mutual electric connection between the DCS system module is used for with the state feedback signal feedback of air compressor machine, cold machine and electrically operated gate is to the DCS system module in.

Furthermore, the model of the remote I/O module is CTX3-OW 32-01.

The utility model has the advantages that: the utility model provides an appearance is with long-range opening and shutting system of air compressor machine, the operation personnel can realize the long-range opening and shutting of air compressor machine, cold machine and the remote switch operation of electrically operated gate through DCS system module transmission operating command in centralized control room, increased the real-time and the rapidity of equipment operation, prevent important equipment because of pneumatic actuator can't the switch action mistake move or refuse to move, reduced the unit operation risk, improved the security and the economic nature of power plant equipment greatly, can provide reference for similar remote control transformation project simultaneously; the utility model discloses an increase LC fastener and the long-range I/module of expanded type (model CTX3-OW32-01) to realize that the long-range function of opening of centralized control room opens the operation air compressor machine, increased the real-time and the rapidity of equipment operation, greatly reduced the operation risk.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic diagram of the system structure of the present invention.

Fig. 2 is a schematic diagram of a system in the prior art.

Wherein:

1. an air compressor room; 2. A DCS system module; 3. A first LC card;

4. a second LC card; 5. A first photoelectric conversion module; 6. A second photoelectric conversion module;

7. a remote I/O module; 8. The first relay is hard-wired; 9. An air compressor;

10. a first MODBUS communication line; 11. The second relay is hard-wired; 12. A cold dryer;

13. a first hard wire; 14. The third relay is hard-wired; 15. An electrically operated door;

16. a second hard-wired line; 17. A second MODBUS communication line; 18. PLC module

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly specified or limited, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

fig. 1 is the utility model discloses a system architecture schematic diagram, fig. 2 are system architecture schematic diagram among the prior art, as the long-range system that opens of opening of air compressor machine for appearance that fig. 1 is shown, include: DCS system module 2, first LC card 3, second LC card 4, first photoelectric conversion module 5, air compressor machine 9, cold machine 12, electrically operated gate 15 and PLC module 18 do, and above-mentioned second photoelectric conversion module 6, air compressor machine 9, cold machine 12, electrically operated gate 15 all set up in 9 rooms 1 of air compressor machine with PLC module 18, its characterized in that: the output end of the DCS system module 2 is electrically connected with the input end of the first LC card 3, the start-stop instruction sent by the DCS system module 2 is sent by the first LC card 3, the output end of the first LC card 3 is electrically connected with the input end of the first photoelectric conversion module 5, a second photoelectric conversion module 6 and a remote I/O module 7 are further arranged in the air compressor 9 room 1, the second photoelectric conversion module 6 is connected with the first photoelectric conversion module 5 through optical fibers, the output end of the second photoelectric conversion module 6 is respectively connected with the air compressor 9, the cold dryer 12 and the electric door 15, the output end of the air compressor 9 is connected with the PLC module 18 through a first MODBUS communication line 10, and the cold dryer 12 is connected with the PLC module 18 through a first hard wiring 13, the power door 15 and the PLC module 18 are connected to each other by a second hard wire 16, the remote I/O module 7 is provided with 16 pairs of DO contacts, each pair of DO contacts being connected to the air compressor 9 by a first relay hard-wiring 8, is connected to the cold dryer 12 by a second relay hard-wire 11, is connected to the power gate 15 by a third relay hard-wire 14, a second LC card 4 is arranged outside the air compressor 9 room 1, the output end of the PLC is mutually connected with the second LC card 4 arranged outside the air compressor 9 room 1 through a second MODBUS communication line 17, the output end of the second LC card 4 is electrically connected with the DCS system module 2, used for feeding back the state feedback signals of the air compressor 9, the cold dryer 12 and the electric door 15 to the DCS system module 2, the model of the remote I/O module 7 is CTX3-OW 32-01.

The working mode is as follows: the utility model provides an appearance is with long-range system that stops that opens of air compressor machine, this system include with the LC fixture block of DCS communication, long-range IO module, photoelectric conversion module and MODBUS, equipment such as optic fibre. The start-stop instruction sent by the DCS system module is sent by the first LC card, and because the distance to the remote I/O module is long, MODBUS communication of the first LC card is converted into an optical signal by the photoelectric conversion module, the optical signal is transmitted to the air compressor room after passing through an optical fiber, and then the optical signal is converted into a 485 communication signal by the photoelectric conversion module and transmitted to the remote I/O module. Each remote I/O module has 16 pairs of DO contacts, and each pair of DO contacts is connected to start/stop and on/off commands of the air compressor, the cold dryer and the electric actuator through hard wiring of a relay to realize remote operation. The state feedback signals of the original air compressor, the cold air dryer and the electric door are still respectively communicated through an MODBUS or connected into the PLC module through hard wiring signals and then transmitted to the DCS system module. The model of the remote I/O module adopted by the system is CTX3-OW32-01, and other models of I/O modules with remote receiving and control output can also be used as alternative models; the LC card of the DCS module related to the system is a special LC card for the OVATION system, and is limited by the DCS system and is determined by the model of the corresponding DCS manufacturer; the photoelectric conversion module, the relay, the optical fiber and other equipment adopted by the system are all universal equipment and are not limited to the models of manufacturers.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. Appearance is with long-range system that stops of air compressor machine includes: DCS system module, first LC card, second LC card, first photoelectric conversion module, air compressor machine, cold machine, electrically operated gate and PLC module do, and above-mentioned air compressor machine, cold machine, electrically operated gate and PLC module all set up in the air compressor computer lab, its characterized in that futilely: the output end of the DCS system module is electrically connected with the input end of the first LC card, the start-stop instruction sent by the DCS system module is sent by the first LC card, the output end of the first LC card is electrically connected with the input end of the first photoelectric conversion module, a second photoelectric conversion module and a remote I/O module are also arranged in the air compressor room, the second photoelectric conversion module is connected with the first photoelectric conversion module through optical fibers, the output end of the second photoelectric conversion module is respectively connected with the air compressor, the cold dryer and the electric door, the output end of the air compressor is connected with the PLC module through a first MODBUS communication line, the cold machine is connected with the PLC modules through first hard wires, and the electric door is connected with the PLC modules through second hard wires.

2. The appearance air compressor machine remote start-stop system of claim 1, characterized in that: the remote I/O module is provided with 16 pairs of DO contacts, and each pair of DO contacts are respectively connected to the air compressor through a first relay hard wire, connected to the cold air dryer through a second relay hard wire and connected to the electric door through a third relay hard wire.

3. The appearance air compressor machine remote start-stop system of claim 1, characterized in that: the air compressor machine room is provided with the second LC card outward, PLC's output passes through second MODBUS communication line and sets up the second LC card interconnect outside the air compressor machine room, this second LC card the output with mutual electric connection between the DCS system module is used for with the state feedback signal feedback of air compressor machine, cold machine and electrically operated gate is to the DCS system module in.

4. The appearance air compressor machine remote start-stop system of claim 1, characterized in that: the model of the remote I/O module is CTX3-OW 32-01.