Intelligent control device for ammonia compression open-type screw unit
By designing an intelligent control device for ammonia compressor units, fully automatic control and remote monitoring are achieved, solving the problems of high workload and safety hazards in ammonia compressor operation, and improving operational safety and reliability.
Patent Information
- Application Number
- CN202422744240.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-11-11
AI Technical Summary
Operating ammonia compressor involves a large workload and poses safety hazards, especially in ammonia-related environments where operators frequently travel between the control room and the site, creating safety risks.
Design an intelligent control device for an open-type screw compressor unit for ammonia compression, including a control box, a programmable logic controller assembly, and an emergency stop button, to achieve fully automatic control, remote monitoring, and one-button shutdown. Combined with an audible and visual alarm and hard-wiring, it connects to a DCS/SIS system for multi-variable control and real-time monitoring.
Reduce operator workload, ensure operational safety, enable remote control and real-time monitoring of ammonia compressors, improve safety and reliability, and reduce the probability of danger.
Smart Images
Figure CN223594430U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to automatic control technical field, specifically, relate to a kind of for ammonia compression open type screw unit intelligent control device. BACKGROUND
[0002] Ammonia (NH) is an important chemical raw material, widely used in fertilizer production, refrigerant, cleaning agent and other fields. Due to its volatility and potential danger, ammonia storage and handling need to follow strict safety standards and technical requirements.
[0003] Ammonia compressor is an important equipment in ammonia storage and handling process, its main function is to compress ammonia gas, to provide gas-liquid pressure difference for ammonia unloading. Stable control of compressor pressure, temperature, energy level and other parameters plays an important role in ensuring the safety of ammonia loading and unloading and maintaining the stability of ammonia spherical tank process parameters. Ammonia is a toxic and flammable gas, and the reliability of the compressor equipment is very high during daily loading, unloading and storage. Ammonia environment is in a high-risk environment, often belongs to major hazard source area, and if the operator frequently goes back and forth between the operation room and the field operation table during daily operation, not only the workload is large, but also there is a certain safety hazard. SUMMARY
[0004] The utility model aims at providing a kind of for ammonia compression open type screw unit intelligent control device, to solve the problem of background art that manual operation is carried out on ammonia compressor, and the workload is large and there is a certain safety hazard.
[0005] To achieve the above-mentioned purpose, the utility model technical scheme provides a kind of for ammonia compression open type screw unit intelligent control device, it includes control box, the control box includes first control panel and second control panel, wherein:
[0006] The first control panel is provided with compressor ammeter, indicator light, local / remote switch, manual / automatic switch; the compressor ammeter is electrically connected with main motor, for real-time display of main motor current information; the indicator light is electrically connected with local / remote switch and manual / automatic switch, for display of ammonia compressor set running state;
[0007] The second control panel is provided with editable logic controller assembly and emergency stop button, the editable logic controller assembly is connected with machine pump and compressor, for machine pump state monitoring and compressor remote control, and the emergency stop button is used to control ammonia compressor set one-key stop.
[0008] Further, a sound and light alarm is installed above the control box.
[0009] Further, the indicator light comprises four indication signals, and the four indication signals correspond to four operation states of the ammonia compressor unit, namely local, remote, manual and automatic.
[0010] Further, the editable logic controller component comprises a control module and a third control panel, and the third control panel communicates with the control module through a TCP / IP protocol.
[0011] Further, the control module comprises a PLC module, an air switch, a 24V power supply, an intermediate relay, a signal isolation module and a wiring terminal, wherein one end of the air switch is connected with an external power supply, the other end of the air switch is connected with a power input end of the PLC module and a 24V power input end, a first input end of the intermediate relay is connected with an output end of the PLC module, a second input end of the intermediate relay is connected with a first output end of the 24V power supply, a second output end of the 24V power supply is connected with the signal isolation module, an output end of the intermediate relay is connected with the wiring terminal, an input end of the wiring terminal is connected with the ammonia compressor unit, an output end of the wiring terminal is connected with an input end of the PLC module through the signal isolation module, and the PLC module completes the collection of the monitoring signals of the ammonia compressor unit through the wiring terminal.
[0012] Further, the third control panel is provided with a process flow display panel, a panel switching key, a mode selection button, an operation process state indicator light and an opening and stopping operation button.
[0013] Further, the editable logic controller component is an S7200 SMART PLC editable logic controller component, and the output of the editable logic controller component adopts an intermediate relay output mode.
[0014] Further, the control box is an explosion-proof control box.
[0015] Further, the editable logic controller component is connected with a DCS / SIS system in a hard-wired mode, so that the remote control of the ammonia compressor pump is realized.
[0016] The beneficial effects of the utility model include:
[0017] 1. The utility model discloses an intelligent control device for ammonia compression open screw rod unit, which can realize the full-automatic control of the ammonia compressor, reduce the workload of the operator, realize the remote control of the ammonia compressor and guarantee the personal safety of the operator.
[0018] 2. The editable logic controller component writes the control program specially developed, collects and monitors the signals such as temperature, pressure and energy level of the unit in real time, carries out the multivariable control of temperature, energy level and pressure of the unit according to the requirement of the control strategy, and improves the safety and reliability of the ammonia compressor operation.
[0019] 3. Set up sound-light alarm and emergency stop button, can remind operator to find fault problem first time, one-key stop machine in emergency, reduce dangerous occurrence probability. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments of the present application, it should be understood that the following drawings only show some embodiments of the present application, therefore should not be regarded as the limitation to the scope, for the ordinary skilled in the art, under the premise of not paying the creative labor, can also obtain other related drawings according to these drawings.
[0021] Figure 1 The present application provides a kind of for ammonia compression opening type screw machine set intelligent control device structural schematic view;
[0022] Figure 2 The present application provides the layout drawing of PLC editable logic controller component control module;
[0023] Figure 3 The present application provides the layout drawing of the third control panel of PLC editable logic controller component.
[0024] Icon: 1-control box, 2-sound-light alarm, 3-compressor ammeter, 4-indicator light, 5-local / remote change-over switch, 6-manual / automatic change-over switch, 7-editable logic controller component, 8-emergency stop button, 9-PLC module, 10-air switch, 11-24V power supply, 12-intermediate relay, 13-signal isolation module, 14-wiring terminal, 15-process flow display panel, 16-panel switching key, 17-mode selection button, 18-running process state indicator light, 19-starting and stopping operation button. DETAILED DESCRIPTION
[0025] The technical scheme in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.
[0026] It should be noted that similar reference numerals and letters refer to like items in the accompanying drawings, and therefore, once an item is defined in one drawing, it is not necessary to further define and explain it in subsequent drawings. It should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, and are only for the convenience of describing the present application and simplifying the 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 cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", and the like are only used for differentiation in description and cannot be understood as indicating or implying relative importance.
[0027] Please refer to Figure 1 As shown in the drawings, at least one embodiment of the present disclosure provides an intelligent control device for ammonia compression open screw machine set, which comprises a control box 1, an audible and visual alarm 2, a compressor ammeter 3, an indicator light 4, a local / remote conversion switch 5, a manual / automatic conversion switch 6, an S7200 SMART PLC editable logic controller component 7, and an emergency stop button 8. The control box 1 is an explosion-proof control box, which can meet the use requirements in the ammonia environment.
[0028] Specifically, in the present embodiment, the audible and visual alarm 2, the compressor ammeter 3, the indicator light 4, the local / remote conversion switch 5, the manual / automatic conversion switch 6, the S7200 SMART PLC editable logic controller component 7, and the emergency stop button 8 are all installed on the control box 1. The compressor ammeter 3 collects the real-time current of the main motor and displays it in real time. The indicator light 4 includes four signal indicators, which respectively represent the four running states of the local, remote, manual, and automatic of the machine set. The local / remote conversion switch 5 can realize the switching between the local control and the remote control of the machine set. The manual / automatic conversion switch 6 can realize the switching function between the manual control and the automatic control mode of the machine set. The S7200 SMART PLC editable logic controller component 7 writes a specially developed control program, and its output adopts the intermediate relay output mode. Its function is to collect and monitor the temperature, pressure, and energy level signals of the machine set in real time, and to control the temperature, energy level, and pressure of the machine set according to the requirements of the control strategy. The emergency stop button 8 realizes one-key shutdown in emergency situations.
[0029] Specifically, the device is connected with the DCS / SIS in a hard-wired manner to realize remote control of the machine pump. Modbus RTU communication is adopted to realize remote communication with the DCS system, and the process parameters and running state of the compressor are monitored in real time. The device has temperature, pressure, energy level, and differential pressure multivariable control functions, and can realize full-automatic operation according to user requirements.
[0030] Specifically, in the embodiment, as shown in Figure 2 , Figure 2 The PLC editable logic controller assembly control module layout provided by the utility model, the control module part contains PLC module 9, air switch 10, 24V power supply 11, intermediate relay 12, signal isolation module 13, wiring terminal 14. The control module is mainly used for controlling the calculation of logic, the realization of control function, signal acquisition, data interaction. Among them, one end of air switch 10 is connected with external power supply, the other end is connected with PLC module 9 power supply and 24V power supply 11, the output end of PLC module 9 is connected with the first input end of intermediate relay 12, the first output end of 24V power supply 11 is connected with the second input end of intermediate relay 12, the second output end of 24V power supply 11 is connected with signal isolation module 13, the output end of intermediate relay 12 is connected with wiring terminal 14, the input end of wiring terminal 14 is connected with ammonia compressor unit, the output end of wiring terminal 14 is connected with the input end of PLC module 9 through signal isolation module 13, and PLC module 9 completes the acquisition of ammonia compressor unit monitoring signal through wiring terminal 14.
[0031] Specifically, as shown in Figure 3 , Figure 3 The third control panel of the PLC editable logic controller assembly provided by the utility model, process flow display panel 15, panel switching key 16, mode selection button 17, running process state indicator 18, start / stop operation button 19 are arranged on the third control panel, which are mainly used for man-machine interaction and can realize the functions of process parameter monitoring, operation control, fault inquiry and interlock shutdown of the system.
[0032] The above is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of claims.
Claims
1. An intelligent control device for ammonia compression open screw machine unit, characterized by, The control box (1) comprises a first control panel and a second control panel, wherein: The first control panel is provided with a compressor ammeter (3), an indicator light (4), a local / remote switch (5), and a manual / automatic switch (6); the compressor ammeter (3) is electrically connected to the main motor and is used for displaying the current information of the main motor in real time; the indicator light (4) is electrically connected to the local / remote switch (5) and the manual / automatic switch (6) and is used for displaying the running state of the ammonia compressor unit; The second control panel is provided with an editable logic controller assembly (7) and an emergency stop button (8); the editable logic controller assembly (7) is connected to the compressor and the pump and is used for monitoring the state of the pump and remotely controlling the compressor; and the emergency stop button (8) is used for one-key stopping of the ammonia compressor unit.
2. The intelligent control device for ammonia compression open screw machine unit according to claim 1, wherein, An audible and visual alarm (2) is installed above the control box (1).
3. The intelligent control device for ammonia compression open screw machine unit according to claim 1, wherein, The indicator light (4) comprises four indication signals corresponding to the local, remote, manual, and automatic states of the ammonia compressor unit.
4. The intelligent control device for ammonia compression open screw machine unit according to claim 1, wherein, The editable logic controller assembly (7) comprises a control module and a third control panel, and the third control panel communicates with the control module through a TCP / IP protocol.
5. An intelligent control device for ammonia compression open screw machine unit as claimed in claim 4 wherein, The control module comprises a PLC module (9), an air switch (10), a 24V power supply (11), an intermediate relay (12), a signal isolation module (13), and a wiring terminal (14); one end of the air switch (10) is connected to an external power supply, the other end is connected to the power input end of the PLC module (9) and the input end of the 24V power supply (11), the output end of the PLC module (9) is connected to the first input end of the intermediate relay (12), the first output end of the 24V power supply (11) is connected to the second input end of the intermediate relay (12), the second output end of the 24V power supply (11) is connected to the signal isolation module (13), the output end of the intermediate relay (12) is connected to the wiring terminal (14), the input end of the wiring terminal (14) is connected to the ammonia compressor unit, the output end of the wiring terminal (14) is connected to the input end of the PLC module (9) through the signal isolation module (13), and the PLC module (9) collects the monitoring signals of the ammonia compressor unit through the wiring terminal (14).
6. An intelligent control device for ammonia compression open screw machine train as claimed in claim 4 wherein, The third control panel is provided with a process flow display panel (15), a panel switching key (16), a mode selection button (17), a running process state indicator light (18), and an open and stop operation button (19).
7. The intelligent control device for ammonia compression open screw machine unit according to claim 1, wherein, The editable logic controller assembly (7) is an S7200 SMART PLC editable logic controller assembly, and the output of the editable logic controller assembly (7) adopts an intermediate relay output mode.
8. The intelligent control device for ammonia compression open screw machine unit according to claim 1, wherein, The control box (1) is an explosion-proof control box.
9. The intelligent control device for ammonia compression open screw machine unit according to claim 1, wherein, The editable logic controller assembly (7) is connected to a DCS / SIS system in a hard-wired manner to realize remote control of the ammonia compressor pump.