CN201209022Y - Automatic control device for ship modified atmosphere fresh-keeping - Google Patents

Abstract

The utility model discloses an automatic control device used for the air conditioning and the fresh keeping of a naval vessel. The automatic control device comprises three PLCs (Programmable Logic Controller), a touch screen, controlled equipment, a temperature-controlled meter, a switching power supply, three detection elements, a sensor transmitting box and an external power supply, wherein the touch screen is connected with the three PLCs through communication interfaces and cables, the output end at one side of either of two PLCs is connected with the controlled equipment, and the controlled equipment, one PLC, the temperature-controlled meter and the switching power supply are all connected with the external power supply through two breakers; the sensor transmitting box is respectively connected with the switching power supply and the detection elements through leads, and the detection elements and the sensor transmitting box are respectively connected with the input ends of the other two PLCs through leads. The utility model has high degree of automation, easy operation and high work efficiency without the hidden danger of equipment and operators and is suitable for automatically controlling the air-conditioning fresh-keeping equipment on the naval vessel.

Description

Naval vessel controlled atmosphere automatic control device

Technical field

The utility model relates to a kind of automatic control device.Specifically, be the automatic control device that is used for controlling the air adjusting preservation equipment on the naval vessel.

Background technology

At present, have only the land, do not see the report of relevant naval vessel as yet with air adjusting preservation equipment and control setup with air adjusting preservation equipment and control setup.The land is made up of the automatically controlled part of Air compressor, the automatically controlled part of cooling driers, the automatically controlled part of nitrogen making machine, the dynamo-electric control of ethylene removal part, the automatically controlled part of carbon dioxide, the automatically controlled part of humidifier, the automatically controlled part of ventilating set, the storehouse pressing automatically controlled partial sum oxygen of weighing apparatus and carbon dioxide detector with the control setup of air adjusting preservation equipment.Though adopt this control setup can satisfy user's operating needs, because the control setup of each equipment is relatively independent, the user re-uses to be needed in the process to operate each equipment artificially according to the start and stop linkage relationship of equipment room.For example, operating personal needs regularly to detect the interior gas oxygen content of air-conditioned cold store with the oxygen and carbon dioxide detector, when exceeding standard, oxygen content wants starting outfit, with the nitrogen replacement storehouse gas that produces, to reach the food fresh keeping requirement in the freezer, this just needs the inlet and outlet valve on the operating personal manual unlocking pipeline, gives Air compressor, cooling driers, nitrogen making machine power supply by consumer unit again, in chronological sequence opens cooling driers, nitrogen making machine and Air compressor then respectively in proper order.System nitrogen, fall process need a few hours of oxygen, operating personal needs again regularly to detect with detector.When gas oxygen content reaches requirement in the storehouse, need in chronological sequence orderly close-down Air compressor, cooling driers and nitrogen making machine, wait to shut down finish after, the valve on the manual-lock pipeline again.This shows that each automatically controlled part is disperseed, not only the degree of automation of The whole control device is lower, and cumbersome, the inefficiency that operates.Because each automatically controlled part is disperseed, do not have linkage relationship between each automatically controlled part again, brought hidden danger for equipment and operating personal.

The utility model content

Problem to be solved in the utility model provides a kind of naval vessel controlled atmosphere automatic control device.This naval vessel controlled atmosphere automatic control device, the degree of automation height, easy to operate, high efficiency, equipment and operating personal do not have hidden danger.

For addressing the above problem, take following technical scheme:

Naval vessel of the present utility model controlled atmosphere is to contain three programmable logic controller (PLC)s (15,16 and 17), touch-screen (7), communication port (14), controlled plant (8), temp controlled meter (9), Switching Power Supply (10), three detecting elements (12,13 and 18), sensor to become and send box (11) and external power supply (1) with the automatic control device characteristics, and touch-screen (7) links to each other with three programmable logic controller (PLC)s (15,16 and 17) with cable by communication interface (14).One side mouth of two programmable logic controller (PLC)s (15 and 16) wherein joins with controlled plant (8) respectively by lead, controlled plant (8) is by two circuit breakers (3,2) be connected with external power supply (1) with lead, a programmable logic controller (PLC) (15) is by two circuit breakers (4,2) join with external power supply (1), temperature controller (9) is by two circuit breakers (5,2) link to each other with external power supply, Switching Power Supply (10) is by two circuit breakers (6,2) join with external power supply (1), the sensor change send box (11) to link to each other detecting element (13 with Switching Power Supply (10) with detecting element (12) respectively by lead, 18) and sensor become send box (11) by lead respectively with other two programmable logic controller (PLC)s (17,15) input end is connected.

Take above scheme, have the following advantages:

Become and send box (11) and external power supply (1) because naval vessel of the present utility model controlled atmosphere contains three programmable logic controller (PLC)s (15,16 and 17), touch-screen (7), communication port (14), controlled plant (8), temp controlled meter (9), Switching Power Supply (10), three detecting elements (12,13 and 18), sensor with automatic control device, touch-screen (7) links to each other with three programmable logic controller (PLC)s (15,16 and 17) with cable by communication interface (14); One side mouth of two programmable logic controller (PLC)s (15 and 16) wherein joins with controlled plant (8) respectively by lead, controlled plant (8) is by two circuit breakers (3,2) be connected with external power supply (1) with lead, a programmable logic controller (PLC) (15) is by two circuit breakers (4,2) join with external power supply (1), temperature controller (9) is by two circuit breakers (5,2) link to each other with external power supply, Switching Power Supply (10) is by two circuit breakers (6,2) join with external power supply (1), the sensor change send box (11) to link to each other detecting element (13 with Switching Power Supply (10) with detecting element (12) respectively by lead, 18) and sensor become send box (11) by lead respectively with other two programmable logic controller (PLC)s (17,15) input end is connected.During work, at first pass through 5 circuit breakers (2,3,4,5,6), make each electrical equipment possess working power in external power supply (1) introducing device.Then, by touch-screen (7) setting device operational factor, this operational factor comprises setting values such as oxygen, carbon dioxide, cycle checkout time and humidity.After above dead work was finished, the user only need can finish the monitoring and the operation of all process equipments by the " RUN " button of the last automatic runnable interface of touch-screen (7).Compare not only degree of automation height, and easy operation, high efficiency with traditional distributing control setup.Because the electric control part branch is concentrated, when breaking down, the chain shutdown of meeting makes equipment and operating personal not have hidden danger again.

Description of drawings

Controlled atmosphere automatic control device scheme drawing in naval vessel of the present utility model during accompanying drawing.

The specific embodiment

As shown in drawings, naval vessel of the present utility model controlled atmosphere contains three programmable logic controller (PLC)s 15,16 and 17, communication port 14 with automatic control device, touch-screen 7, controlled plant 8, temp controlled meter 9, three detecting elements 12,13 and 18, box 11 and external power supply 1 are sent in the sensor change.Touch-screen 7 links to each other with 17 by communication interface 14 and cable and three programmable logic controller (PLC)s 15,16.Programmable logic controller (PLC) 15 wherein and a mouth of 16 join with controlled plant 8 respectively by lead, controlled plant 8 is by circuit breaker 3, circuit breaker 2 is connected with external power supply 1 with lead, circuit breaker 3, the lead that circuit breaker is 2 links to each other with circuit breaker 5 by circuit breaker 4 respectively with 9 of programmable logic controller (PLC) 15 and temperature controllers, the lead that circuit breaker 3 and circuit breaker are 2 joins with programmable logic controller (PLC) 17 and detecting element 12 respectively by circuit breaker 6 and Switching Power Supply 10, and detecting element 18 links to each other with the input terminal of programmable logic controller (PLC) 15 with programmable logic controller (PLC) 17 respectively with detecting element 13.During work, earlier circuit breaker 2,3,4,5,6 is all closed, make each electrical equipment all have working power.Set the operating parameter setting value by touch-screen again, as setting values such as oxygen, carbon dioxide, cycle checkout time and humidity.After above work is finished,, can monitor and operate each process equipment by the " RUN " button of automatic runnable interface on the touch-screen.Falling oxygen with system nitrogen is example, and its operating process is as follows: after device starts automatically, patrol and examine the oxygen content of gas in the storehouse automatically.When patrolling and examining, according to first detection electromagnetic valve and the gas production pump of opening in proper order in the controlled plant 8 of the program in the programmable logic controller (PLC), is detecting element 12 with the storehouse pneumatic transmission to exhaust gas oxygensensor by the gas production pump, to be detecting element 12 give sensor with detected non-standard electric signal becomes and send box 11 to carry out standardization by exhaust gas oxygensensor again, become by sensor then and send box 11 that normalized signal is delivered to the computing that programmable logic controller (PLC) 15 and programmable logic controller (PLC) 17 carry out digitized processing and participate in program.When program judges that oxygen content exceeds standard, can chain automatically and startup relevant device.At first by programmable logic controller (PLC) output point control and open in the control convenience 8 corresponding intake ﹠ exhaust valves door on the pipeline, control contactless switch adhesive by the programmable logic controller (PLC) output point then to the cooling driers power supply, make cooling driers work.Simultaneously, control system nitrogen part gas circuit associated solenoid valve is opened, time-delay a period of time, make to the contactless switch adhesive in the controlled plant 8 of Air compressor power supply, and make Air compressor work, nitrogen-making device starts.When program judged that oxygen content is qualified, relevant device can be chain out of service automatically.In the equipment running process, the detecting element in the detecting element 18 can be given relevant information programmable logic controller (PLC) 15, judges for program and uses.

The realization of functions such as equilibrium of pressure, safe ventilation, ethylene removal, carbon dioxide eliminating and humidification, the class of operation of falling oxygen with system nitrogen seemingly.

Claims (1)

1. naval vessel controlled atmosphere automatic control device, it is characterized in that comprising that three programmable logic controller (PLC)s (15,16 and 17), touch-screen (7), communication port (14), controlled plant (8), temp controlled meter (9), Switching Power Supply (10), three detecting elements (12,13 and 18), sensor become send box (11) and external power supply (1), touch-screen (7) links to each other with three programmable logic controller (PLC)s (15,16 and 17) with cable by communication interface (14); One side mouth of two programmable logic controller (PLC)s (15 and 16) wherein joins with controlled plant (8) respectively by lead, controlled plant (8) is by two circuit breakers (3,2) be connected with external power supply (1) with lead, a programmable logic controller (PLC) (15) is by two circuit breakers (4,2) join with external power supply (1), temperature controller (9) is by two circuit breakers (5,2) link to each other with external power supply, Switching Power Supply (10) is by two circuit breakers (6,2) join with external power supply (1), the sensor change send box (11) to link to each other detecting element (13 with Switching Power Supply (10) with detecting element (12) respectively by lead, 18) and sensor become send box (11) by lead respectively with other two programmable logic controller (PLC)s (17,15) input end is connected.

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