CN209746409U - System for controlling screw pressurizing machine of power plant - Google Patents
System for controlling screw pressurizing machine of power plant Download PDFInfo
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- CN209746409U CN209746409U CN201920918501.6U CN201920918501U CN209746409U CN 209746409 U CN209746409 U CN 209746409U CN 201920918501 U CN201920918501 U CN 201920918501U CN 209746409 U CN209746409 U CN 209746409U
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- photoelectric converter
- power plant
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- screw rod
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Abstract
The utility model provides a system for control is carried out to screw rod pressure machine of power plant belongs to the power plant equipment and reforms transform the field. The method comprises the following steps: the PLC controller is arranged near a screw compressor of a power plant, the OPC server and the first photoelectric converter are arranged on a path between the screw compressor and a main control room, the second photoelectric converter, the DCS server and the DCS operating station are arranged in the main control room, the screw compressor is connected with the PLC controller, the PLC controller is connected with the OPC server through a serial port communication line, the OPC server is connected with the first photoelectric converter through a cable, the first photoelectric converter is connected with the second photoelectric converter through an optical fiber, the second photoelectric converter is connected with the DCS server through an Ethernet, and the DCS server is connected with the DCS operating station. The utility model discloses a to the remote control of screw rod adding press, the master control room of not only being convenient for dispatches the control to the screw rod adding press, ensures moreover that the relevant parameter of screw rod adding press operation in-process can real-time transmission to control room, ensures that the staff can obtain the operating mode of screw rod adding press in real time.
Description
Technical Field
the utility model relates to a power plant equipment reforms transform technical field, in particular to system that carries out control to the screw rod pressure machine of power plant.
Background
In order to further expand the gas source for power generation of power plants, gas is extracted by a horizontal well gas extraction system for a plurality of power plants to be supplied to a gas generator set. And the gas production system of the horizontal well adopts a screw compressor to boost pressure and then conveys the collected gas. In the process of gas conveying, the screw pressurizer is often required to be subjected to load and unload control according to the gas quantity.
At present, when the screw pressurizer is controlled, a local PLC control box controls the screw pressurizer to increase or decrease load according to the outlet pressure of the screw pressurizer. However, due to the limitation that the installation position of the gas extraction well and the screw press is far away from the main control chamber, the scheduling and monitoring of the screw press by the main control chamber are not facilitated, and the local control has certain hysteresis, so that the working condition of the screw press cannot be obtained in real time.
Disclosure of Invention
The mode of controlling to the screw rod pressure machine at present in order to solve not only is unfavorable for the main control room to schedule the control to the screw rod pressure machine, and the control has certain hysteresis quality moreover on the spot, leads to the technical problem that can not obtain the operating mode of screw rod pressure machine in real time, the utility model provides a system of controlling is carried out to the screw rod pressure machine of power plant.
In order to solve the technical problem, the utility model discloses a technical scheme is:
The utility model provides a system for control is carried out screw rod press of power plant, the system for control is carried out screw rod press of power plant includes PLC controller, OPC server, first photoelectric converter, second photoelectric converter, DCS server and DCS operation station, wherein: the PLC controller sets up near the screw rod pressure machine of power plant, OPC server and first photoelectric converter set up on the route between screw rod pressure machine and the main control room, the second photoelectric converter, DCS server and DCS operation station set up in the main control room, the screw rod pressure machine passes through cable junction with the PLC controller, the PLC controller passes through serial ports communication line and is connected with the OPC server, the OPC server passes through the cable and is connected with first photoelectric converter, first photoelectric converter passes through optic fibre and is connected with the second photoelectric converter, the second photoelectric converter passes through ethernet and is connected with the DCS server, the DCS server passes through cable junction with the DCS operation station.
Optionally, the system for controlling the screw pressurizing machine of the power plant further comprises an alarm, the alarm is arranged in the main control room, and the alarm is connected with the digital signal output module of the DCS server.
Optionally, the optical fiber is an armored optical fiber.
Optionally, the cable is a shielded cable.
Optionally, the system for controlling the screw pressurizing machine of the power plant further comprises a cable fault tester, and the cable fault tester is connected with the cable.
Above-mentioned all optional technical scheme all can make up wantonly, the utility model discloses do not carry out the detailed description to the structure after the one-by-one combination.
The embodiment of the utility model provides a technical scheme can include following beneficial effect:
Through the utility model discloses a set up PLC controller, OPC server, first photoelectric converter and second photoelectric converter, realized the remote control to the screw rod adding press, the master control room of not only being convenient for schedules the control to the screw rod adding press, ensures moreover that the relevant parameter in the screw rod adding press operation process can real-time transmission to the control room, ensures that the staff can obtain the operating mode of screw rod adding press in real time. The utility model utilizes the original DCS server and the DCS operation station in the control room of the power plant, utilizes the original hardware of the power plant to the maximum extent, and can save the transformation cost; the problem of attenuation of long-distance communication signals is solved by using the optical fiber to transmit data or instructions; through setting up OPC server, make the utility model discloses it is convenient to set up, and simple easy-to-use realizes the transmission of data or instruction easily. Therefore, through the utility model discloses, improved the stability of the equipment operation of whole factory of power plant, further strengthened the emergency response ability to emergency, improved the synchronism of other each equipment control of screw rod presser and DCS server management.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
fig. 1 is a schematic diagram of the system of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples.
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
as shown in fig. 1, the embodiment of the utility model provides a system for controlling screw rod press of power plant includes PLC controller 1, OPC server 2, first photoelectric converter 3, second photoelectric converter 4, DCS server 5 and DCS operation station 6, wherein: PLC controller 1 sets up near the screw rod pressure machine of power plant, OPC server 2 and first photoelectric converter 3 set up on the route between screw rod pressure machine and the main control room, second photoelectric converter 4, DCS server 5 and DCS operation station 6 set up in the main control room, the screw rod pressure machine passes through cable junction with PLC controller 1, PLC controller 1 passes through serial ports communication line and is connected with OPC server 2, OPC server 2 passes through the cable and is connected with first photoelectric converter 3, first photoelectric converter 3 passes through optic fibre and is connected with second photoelectric converter 4, second photoelectric converter 4 passes through ethernet and is connected with DCS server 5, DCS server 5 passes through cable junction with DCS operation station 6.
The utility model discloses when using, PLC controller 1 is arranged in gathering data such as the relevant parameter (the presser load switch condition, converter frequency, import and export pressure and relevant auxiliary engine operational aspect) of screw rod presser operation in-process to send the data of gathering to OPC server 2 through serial communication line. The OPC server 2 is used for providing interfaces or application programs matched with each other among the PLC controller 1, the first photoelectric converter 3, the second photoelectric converter 4, and the DCS server 5, and ensuring that data collected by the PLC controller 1 can be transmitted to the DCS server 5. After receiving the data from the PLC controller 1, the OPC server 2 uploads the data to the existing DCS server 5 in the plant control room via the first and second photoelectric converters 3 and 4. The DCS server 5 integrates the use condition of the gas in the whole plant, the gas flow and other related data to remotely control the load rate of the screw pressurizer. Specifically, when an operator needs to adjust control parameters of the screw press, the operator sends an instruction through the DCS operation station 6, the instruction is sent to the PLC controller 1 through the DCS server 5, the second photoelectric converter 4, the first photoelectric converter 3 and the OPC server 2, and the screw press is controlled by the PLC controller 1.
Optionally, the system for controlling the screw pressurizing machine of the power plant further comprises an alarm, the alarm is arranged in the main control room, and the alarm is connected with the digital signal output module of the DCS server 5. When the DCS server 5 determines that the relevant parameters of the screw pressurizing machine are abnormal, the digital signal output module of the DCS server 5 controls the alarm to give an alarm and remind workers. The alarm can be a sound alarm, a light alarm, a sound-light alarm and the like.
Optionally, the optical fiber is an armored optical fiber to avoid damage to the optical fiber and improve lateral pressure resistance of the optical fiber, so that data or instructions transmitted between the first photoelectric converter 3 and the second photoelectric converter 4 can smoothly reach the other side, and interruption of the data or instructions is avoided.
Further, the cable is a shielded cable. By arranging the cable as a shielding cable, it is ensured that data or instructions between the screw press and the DCS server 5 can be prevented from being influenced by electromagnetic waves radiated by other equipment in the power plant, so that the data or instructions can be accurately transmitted.
Further, the system for controlling the screw pressurizing machine of the power plant further comprises a cable fault tester, and the cable fault tester is connected with a cable. Cable fault tester is used for the real-time detection cable whether break down, ensures to discover in time the utility model discloses the trouble that appears in the operation process.
The above embodiments are only used for illustrating the present invention, and not for limiting the present invention, and those skilled in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the protection scope of the present invention should be defined by the claims.
Claims (5)
1. The utility model provides a system for control is carried out screw rod of power plant with pressure machine, its characterized in that, the system for control is carried out screw rod of power plant with pressure machine includes PLC controller (1), OPC server (2), first photoelectric converter (3), second photoelectric converter (4), DCS server (5) and DCS operation station (6), wherein:
PLC controller (1) sets up near the screw rod pressure machine of power plant, OPC server (2) and first photoelectric converter (3) set up on the route between screw rod pressure machine and the main control room, second photoelectric converter (4), DCS server (5) and DCS operation station (6) set up in the main control room, the screw rod pressure machine passes through cable junction with PLC controller (1), PLC controller (1) is connected with OPC server (2) through serial ports communication line, OPC server (2) are connected with first photoelectric converter (3) through the cable, first photoelectric converter (3) are connected with second photoelectric converter (4) through optic fibre, second photoelectric converter (4) are connected with DCS server (5) through ethernet, DCS server (5) pass through cable junction with DCS operation station (6).
2. The system for controlling the screw pressurizing machine of the power plant according to claim 1, further comprising an alarm, wherein the alarm is arranged in the main control room and is connected with the digital signal output module of the DCS server (5).
3. The system for controlling a screw press of a power plant according to claim 1, characterized in that said optical fiber is an armored optical fiber.
4. The system for controlling a screw press of a power plant according to claim 1, characterized in that said cable is a shielded cable.
5. The system for controlling the screw pressurizing machine of the power plant according to claim 1 or 4, wherein the system for controlling the screw pressurizing machine of the power plant further comprises a cable fault tester, and the cable fault tester is connected with a cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920918501.6U CN209746409U (en) | 2019-06-18 | 2019-06-18 | System for controlling screw pressurizing machine of power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920918501.6U CN209746409U (en) | 2019-06-18 | 2019-06-18 | System for controlling screw pressurizing machine of power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209746409U true CN209746409U (en) | 2019-12-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920918501.6U Active CN209746409U (en) | 2019-06-18 | 2019-06-18 | System for controlling screw pressurizing machine of power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209746409U (en) |
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2019
- 2019-06-18 CN CN201920918501.6U patent/CN209746409U/en active Active
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