CN204595593U - A remote monitoring system for ship exhaust gas desulfurization and denitrification process - Google Patents

Abstract

The utility model discloses a boats and ships waste gas SOx/NOx control technology remote monitering system, including remote monitering terminal and on-the-spot automatic monitoring system, remote monitering terminal pass through big dipper satellite and link to each other with the on-the-spot automatic monitoring system of SMS communication mode, realize acquireing and the process equipment control to the field data. The utility model discloses SMS communication and locate function based on big dipper satellite have established boats and ships waste gas SOx/NOx control remote monitering system. The utility model discloses a remote monitoring terminal can carry out real-time information interaction through big dipper satellite and on-the-spot automatic monitoring system, has realized the normal transmission at the normal navigation in-process real-time technology operational data of boats and ships, has improved the reliability of boats and ships waste gas SOx/NOx control technology operation. The utility model discloses a china's big dipper satellite short message communication mode technology that research and development by oneself is mature, and the cost is lower, and remote monitoring is feasible.

Description

A remote monitoring system for ship exhaust gas desulfurization and denitrification process

technical field

The utility model relates to the technical field of ship waste gas desulfurization and denitrification, in particular to a remote monitoring system for ship waste gas desulfurization and denitrification systems.

Background technique

Ship exhaust gas desulfurization and denitrification technology is an effective way to solve the pollution caused by ships to the atmosphere during navigation. However, the ship sails at sea for a long time, and the actual operating conditions of the ship's exhaust gas desulfurization and denitrification system are very complicated. In order to strengthen the management of the operation of the desulfurization and denitrification system, it is necessary to transmit the real-time information of the system operation to the ship operation management center on the shore, so as to monitor the operation of the ship's exhaust gas desulfurization and denitrification system in real time.

However, the communication base stations are only built along the coast, and if the ship is more than a certain distance from the shore, there will be no communication signal or the signal is very poor. Therefore, the application of traditional wireless mobile signals, such as 4G, GPRS, and 3G technologies, cannot realize the normal transmission of real-time data.

The Beidou satellite system designed by my country has the function of two-way SMS communication. Compared with other communication methods, it has the advantages of stable and reliable information transmission and wide coverage. It is suitable for data transmission in areas without wireless communication signals, such as at sea.

Contents of the invention

In order to solve the problems existing in the prior art, the utility model provides a remote monitoring system for ship desulfurization and denitrification process that can realize normal transmission of real-time data.

In order to achieve the above object, the technical scheme of the utility model is as follows:

A remote monitoring system for ship exhaust gas desulfurization and denitrification process, including a remote monitoring terminal and an on-site automatic monitoring system. The remote monitoring terminal is connected to the on-site automatic monitoring system through Beidou satellite through short message communication, so as to realize on-site data acquisition and process equipment control ;

The remote monitoring terminal includes a Beidou satellite communication module A, a data processing module and a parameter setting module; the Beidou satellite communication module A receives the process operation data information transmitted by the on-site automatic monitoring system, and displays it at the monitoring terminal in the form of numbers and charts, And store the relevant data for use by the data processing module; the remote monitoring terminal sends instructions through the Beidou satellite communication module A to retrieve the on-site process operation data in real time; the data processing module reads the data information received by the Beidou satellite communication module A, and according to the built-in program Make feedback and return the feedback information from the Beidou satellite communication module A to the on-site automatic monitoring system; when the on-site desulfurization and denitrification process requires technical support, the parameter setting module is for remote operation by technicians;

The on-site automatic monitoring system includes Beidou satellite communication module B, programmable logic controller PLC, industrial control machine, process equipment and monitoring equipment.

The Beidou satellite communication module B sends the data information to the remote monitoring terminal via the Beidou satellite in the form of a short message according to the preset content and object;

The programmable controller PLC calculates and processes the simulated data collected by the monitoring equipment; sets the operating parameters of the ship exhaust gas desulfurization and denitrification process through programming, and the parameters include: the flow rate of each relevant part of the ship exhaust gas desulfurization and denitrification process system , temperature, liquid level, concentration, material level, the upper limit of the pH value and the lower limit of the pH value; the upper limit of the content of sulfur oxides SOx and nitrogen oxides NOx in the flue gas; over-limit alarms, and send corresponding control instructions to the industrial control machine; The digital quantity is the chain and linkage of the switch quantity of each field process operation equipment;

The industrial control machine includes a PLC communication module and a data processing module; the PLC communication module receives the measurement data of each instrument and the opening and closing status data of each execution device and displays the measurement data of each instrument and the opening and closing of each device in real time. , Shutdown state, data display module for statistics and printing of reports; data processing module is connected with process equipment and monitoring equipment through cables, and controls each process equipment and monitoring equipment according to built-in parameters to meet the ship exhaust gas desulfurization and denitrification process Require;

The process equipment includes various fans, pumps, valves, agitator motors and frequency converters;

The monitoring equipment includes a pH meter, a float type liquid level gauge, a thermocouple for measuring flue gas temperature, a slurry flow meter, a flue gas flow meter, a probe of an exhaust gas analyzer, and an inlet flue gas pollutant concentration measuring device.

The working principle of the utility model: the on-site automatic monitoring system developed by the embedded system automatically monitors the desulfurization and denitrification process according to the built-in program, and automatically collects and stores the monitoring data. The on-site automatic monitoring system is equipped with Beidou satellite communication module B, which can send process operation data to the remote monitoring terminal in the form of short messages via Beidou satellite communication module B. At the same time, the remote monitoring terminal can also send relevant instructions through the Beidou satellite communication module A to actively retrieve the desulfurization and denitrification process operation data and set process operation parameters to realize real-time monitoring of the desulfurization and denitrification process. If the relevant data information exceeds the threshold, the on-site automatic monitoring system will make self-adjustment feedback according to the built-in program, send instructions to the on-site controller to adjust the equipment that needs to be adjusted, and send an alarm message to the remote monitoring terminal at the same time. If the data information exceeds the on-site self-adjustment range, or the on-site automatic monitoring system fails, an alarm will be sent to the remote monitoring terminal, and the remote monitoring terminal will perform technical diagnosis.

The beneficial effects of the utility model are:

1. This utility model is based on the SMS communication and positioning functions of the Beidou satellite, and establishes a remote monitoring system for desulfurization and denitrification of ship exhaust gas. The remote monitoring terminal of the utility model can carry out real-time information interaction with the on-site automatic monitoring system through the Beidou satellite, realizes the normal transmission of real-time process operation data during the normal navigation of the ship, and improves the reliability of the operation of the ship's exhaust gas desulfurization and denitrification process.

2. The utility model adopts the Beidou satellite short message communication method independently developed by my country, which is mature in technology, low in cost, and feasible in remote monitoring.

Description of drawings

Figure 1 is a schematic diagram of a remote monitoring system for desulfurization and denitrification process of ship exhaust gas based on Beidou satellite.

Figure 2 is a schematic diagram of the on-site automatic monitoring system and related equipment for desulfurization and denitrification of ship exhaust gas based on Beidou satellite.

In the figure: 1. Remote monitoring terminal, 2. Beidou satellite communication module A, 3. On-site automatic monitoring system, 4. Industrial control machine, 5. Programmable logic controller PLC, 6. Beidou satellite communication module B, 7. Process equipment , 8. Monitoring equipment.

Detailed ways

The concrete realization of the present utility model is illustrated below according to the accompanying drawings, but the present utility model is not limited in any way:

As shown in Figure 1, the Beidou satellite-based remote monitoring system for ship exhaust gas desulfurization and denitrification process includes a remote monitoring terminal 1 and an on-site automatic monitoring system 3 .

The on-site automatic monitoring system 3 transmits the monitoring data and system work information to the remote monitoring terminal 1 via the Beidou satellite according to the preset content and objects through the Beidou satellite communication module B6; the remote monitoring terminal 1 processes the received information, The satellite returns to the site to realize real-time monitoring and ensure the reliable operation of the process. The remote monitoring terminal 1 can also send corresponding instructions to retrieve data and modify process operating parameters at any time.

As shown in Figure 2, the on-site automatic monitoring system 3 includes a Beidou satellite communication module B6, a programmable logic controller PLC5, an industrial control machine 4, process equipment 7 and monitoring equipment 8.

The programmable controller PLC5 calculates and processes the analog data collected by the monitoring device 8 . Set the operating parameters of the ship exhaust gas desulfurization and denitrification process through programming, mainly including: setting the flow rate, temperature, liquid level, concentration, material level, upper limit of pH value and lower limit of pH value of each relevant part of the ship exhaust gas desulfurization and denitrification process system; Set the upper limit of the content of sulfur oxides SOx and nitrogen oxides NOx in the flue gas; set an over-limit alarm, and send a corresponding control command to the industrial control machine 4; also set the digital value, that is, the chain and linkage of the switching values of each on-site process operation equipment .

The industrial control machine 4 communicates with the PLC communication module to receive the measurement data of each instrument and the opening and closing status data of each execution equipment, and display the measurement data of each instrument and the opening and closing status of each equipment in real time, and perform data statistics and printing The data display module of the report; the data processing module is connected with the process operation equipment and monitoring equipment 8 through cables, and controls each equipment according to the built-in parameters to meet the process requirements of ship exhaust gas desulfurization and denitrification.

Claims (1)

1. A ship exhaust gas desulfurization and denitrification process remote monitoring system is characterized in that: it comprises a remote monitoring terminal (1) and an on-site automatic monitoring system (3), and the described remote monitoring terminal (1) communicates with a short message through the Beidou satellite The on-site automatic monitoring system (3) is connected to realize on-site data acquisition and process equipment (7) control; The remote monitoring terminal (1) includes a Beidou satellite communication module A (2), a data processing module and a parameter setting module; the Beidou satellite communication module A (2) receives the process operation data information transmitted by the on-site automatic monitoring system (3) , display on the monitoring terminal in the form of numbers and graphs, and store relevant data for use by the data processing module; the remote monitoring terminal (1) sends instructions through the Beidou satellite communication module A (2), and retrieves the on-site process operation data in real time; The data processing module reads the data information received by the Beidou satellite communication module A (2), makes feedback according to the built-in program, and returns the feedback information from the Beidou satellite communication module A (2) to the on-site automatic monitoring system (3); on-site desulfurization When the denitrification process requires technical support, the parameter setting module is for remote operation by technicians; The on-site automatic monitoring system (3) comprises a Beidou satellite communication module B (6), a programmable logic controller PLC (5), an industrial control machine (4), a process equipment (7) and a monitoring equipment (8); The Beidou satellite communication module B (6) sends the data information to the remote monitoring terminal (1) via the Beidou satellite in the form of a short message according to preset content and objects; The programmable logic controller PLC (5) calculates and processes the analog data collected by the monitoring equipment (8); sets the operating parameters of the ship exhaust gas desulfurization and denitrification process through programming, and the parameters include: ship exhaust gas desulfurization and denitrification process The flow rate, temperature, liquid level, concentration, material level, upper limit of pH value and lower limit of pH value of each relevant part of the system; The machine (4) issues corresponding control instructions; the digital quantity refers to the interlocking and linkage of the switching quantities of each on-site process operation equipment; The industrial control machine (4) includes a PLC communication module and a data processing module; the PLC communication module receives the measurement data of each instrument and the opening and closing state data of each execution device and displays the measurement data of each instrument and the status data of each instrument in real time. A data display module for performing data statistics and printing reports when the equipment is turned on or off; the data processing module is connected to the process equipment (7) and the monitoring equipment (8) through cables, and monitors each process equipment (7) and monitoring equipment according to the built-in parameters. The equipment (8) is controlled so that it meets the process requirements for desulfurization and denitrification of ship exhaust gas; The process equipment (7) includes various fans, pumps, valves, agitator motors and frequency converters; The monitoring equipment (8) includes a pH meter, a float type liquid level meter, a thermocouple for measuring flue gas temperature, a slurry flowmeter, a flue gas flowmeter, a probe of an exhaust gas analyzer, and an inlet flue gas pollutant concentration measuring device .