CN219639025U - Variable-frequency energy-saving centralized control system of air compressor - Google Patents
Variable-frequency energy-saving centralized control system of air compressor Download PDFInfo
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- CN219639025U CN219639025U CN202320298734.7U CN202320298734U CN219639025U CN 219639025 U CN219639025 U CN 219639025U CN 202320298734 U CN202320298734 U CN 202320298734U CN 219639025 U CN219639025 U CN 219639025U
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Abstract
The utility model provides a variable frequency energy-saving centralized control system of an air compressor, belonging to the technical field of centralized control of air compressors; the problems that the existing air compressor cannot be controlled in a centralized way, is started directly, is not energy-saving and the like are solved; the air compressor cooling system comprises a control room, an air compressor room, a power distribution room and a cooling system, wherein a control cabinet, a workbench and a liquid crystal display screen are arranged in the control room, and the cooling system cools an air compressor in the air compressor room through a cooling water pipeline; the air compressor room is internally provided with a plurality of air compressors, the control ends of the air compressors are respectively connected to a control cabinet of the control room through wires, at least one air compressor of the air compressors is connected with a frequency converter, an air inlet of each air compressor is connected with an air storage tank through an air inlet pipeline, each air storage tank is provided with a temperature transmitter, the air storage tanks are respectively connected to a main air outlet pipeline through a branch pipe, and the main air outlet pipeline is provided with a pressure transmitter; the utility model is applied to the air compressor.
Description
Technical Field
The utility model provides a variable frequency energy-saving centralized control system of an air compressor, and belongs to the technical field of air compressor control systems.
Background
The screw air compressor is a power source of pneumatic equipment necessary in the coal mine production process, belongs to high-energy-consumption equipment of the coal mine, and has the following main problems in the use process:
1) Because of uncertainty of underground gas consumption, in order to ensure normal use of the underground pneumatic tool, rated gas supply quantity of the air compressor is possibly higher than on-site gas consumption, and the air compressor belongs to gas supply excess, and redundant gas is discharged through an unloading valve, so that electric energy waste is caused. It is also possible that the rated air supply of the air compressor cannot meet the normal air consumption of the downhole pneumatic tool, so that the pneumatic tool cannot be used normally, and the pneumatic tool belongs to 'insufficient air supply'.
2) The air compressors are not controlled in a centralized manner, the number of the air compressors which are operated is manually controlled according to the underground air consumption, and real-time control cannot be achieved.
3) The start and stop of all air compressors are controlled by a high-voltage switch cabinet, the starting mode is direct starting, and mechanical impact and electric impact are generated on equipment and a power supply system during starting, so that the equipment is damaged.
4) When the air compressor is operated in a light load state, the power factor of the motor is low, a large amount of reactive power loss can be generated, and a large amount of useless electric energy consumption is also caused.
5) The information management is lacking, and the setting parameters, the operation parameters and the fault information of the air compressor and the cooling system cannot be monitored and controlled and cannot be uploaded to a duty room or a dispatching room.
Aiming at the problems, some technical schemes have been disclosed for solving one or more problems, such as a centralized control system of an air compressor with application number 202110696017.5 and a control method thereof, the real-time data acquisition and judgment of the usage amount of the real-time compressed air read by a flowmeter are realized through a controller module, when the real-time data value is lower than the lower limit of a value interval set in a PLC module, the PLC module can unload a part of the running air compressor and a drier so that the output amount of the compressed air is matched with the usage amount, centralized control is realized, the energy saving effect is realized according to the requirement balance of a terminal, and the problems 1) and 2) are solved, but other three problems cannot be solved at the same time.
The remote centralized control system of the underground air compressor of the coal mine with the application number of 202111432844.X comprises an underground information acquisition module, a control module and a control module, wherein the underground information acquisition module is used for acquiring data of the state of the underground air compressor; the video monitoring module is used for shooting underground videos to monitor; the underground control module is used for receiving underground information and judging the operation condition of the air compressor; and the ground man-machine interaction module is used for realizing the communication between the underground control module and the ground upper computer. The system provided by the utility model realizes underground unattended operation on the premise of ensuring safety, ground personnel can operate a plurality of air compressor devices, and meanwhile, remote air compressor monitoring can be realized, so that the condition of the air compressors can be mastered at any time by an outgoing supervisor, and unified management is facilitated. The technical scheme can solve the problems 1), 2) and 5), but can not solve other two problems at the same time.
The centralized control energy-saving system for the air compressors has the application number of 202120365585.2, and realizes the dynamic matching of the air supply quantity of the air compressor system and the gas consumption of a factory by performing centralized control on a plurality of air compressors and a dryer, so that the system stably operates, and the purposes of energy conservation and emission reduction are realized. The technical scheme can solve the problems 1), 2) and 5), but can not solve other two problems at the same time.
Disclosure of Invention
The utility model provides a variable frequency energy-saving centralized control system of an air compressor, which aims to solve the problems that the existing air compressor cannot be controlled in a centralized way, can not be started directly, cannot save energy and the like, and aims to realize centralized control of an air compressor unit by improving hardware or improving combined connection of hardware modules and/or circuits so as to enable the air compressor unit to run in an energy-saving way.
In order to solve the technical problems, the utility model adopts the following technical scheme: the variable-frequency energy-saving centralized control system for the air compressor comprises a control room, an air compressor room, a power distribution room and a cooling system, wherein the power distribution room supplies power to the control room, the air compressor room and the cooling system, a control cabinet, a workbench and a liquid crystal display screen are arranged in the control room, the control cabinet is respectively connected with the workbench and the liquid crystal display screen through wires, and the cooling system cools the air compressor in the air compressor room through a cooling water pipeline;
the air compressor room is internally provided with a plurality of air compressors, the control ends of the air compressors are respectively connected to a control cabinet of the control room through wires, at least one air compressor of the air compressors is connected with a frequency converter, the control end of the frequency converter is connected with the control cabinet of the control room through wires, the air inlet of each air compressor is connected with air storage tanks through an air inlet pipeline, each air storage tank is provided with a first temperature transmitter, the air storage tanks are respectively connected to a main air outlet pipeline through branch pipes, and the main air outlet pipeline is provided with a first pressure transmitter;
the cooling system comprises two cooling towers, a water return tank and a water inlet tank, wherein the water outlet pipelines of the two cooling towers are connected in parallel and then enter the water inlet tank, the water outlet pipelines of the water inlet tank are connected with the water inlet of each air compressor through branch pipes, the water outlet of each air compressor is connected with the water return pipeline of the water return tank through branch pipes, the water outlet pipeline of the water inlet tank is provided with a second temperature transmitter, a second pressure transmitter and a first water pump, the water return pipeline of the water return tank is provided with a third temperature transmitter and a third pressure transmitter, the water outlet of each air compressor is provided with a flow switch, and a plurality of first temperature transmitters, a plurality of first pressure transmitters, a plurality of flow switches, the second temperature transmitters, the third temperature transmitters, the second pressure transmitters and the third pressure transmitters are connected to a control cabinet of the control room through wires.
The water return tank is connected with the water inlet tank through a first water pipe, the first water pipe is connected with a second water pipe through a second water pump, one end of the second water pipe is connected with a third water pipe and a fourth water pipe in parallel, the third water pipe is connected with the water return tank through a fourth water pipe, the fourth water pipe is connected with the water return pipes of two cooling towers in parallel, the other end of the second water pipe is connected with the water outlet pipe of the water inlet tank in parallel, a third water pump is arranged on the third water pipe, the control ends of the first water pump, the second water pump and the third water pump are respectively connected into a low-voltage starting cabinet of a water pump room, and the low-voltage starting cabinet is connected with a control cabinet in a control room through wires.
The frequency converter can also be connected with two air compressors simultaneously.
The control console is provided with an upper computer and an alarm module.
The plurality of air compressors comprise standby air compressors.
The control console is also provided with a video monitoring module, and the video monitoring module comprises a camera arranged in the air compressor room.
The control cabinet is communicated with a background control end in the scheduling room through a wireless and/or wired module to perform data transmission.
Compared with the prior art, the utility model has the following beneficial effects: the variable-frequency energy-saving centralized control system for the air compressor can solve the 5 problems at the same time, ensures air supply balance and real-time control by arranging the pressure transmitter on the air outlet pipeline of the air storage tank, controls the running quantity and the variable-frequency running speed of the air compressor according to the underground actual air consumption by arranging the variable-frequency control air compressor, and realizes the dynamic balance of the air supply and the air consumption, thereby reducing the action times of an unloading valve of the air compressor, reducing energy consumption and saving electric energy. The real-time monitoring of the running state and running parameters of the centralized control system is realized through the control cabinet and the upper computer.
Drawings
The utility model is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic diagram of a circuit structure of the present utility model;
fig. 2 is a schematic circuit diagram of a power distribution room according to the present utility model.
Detailed Description
As shown in fig. 1-2, the utility model provides a variable frequency energy-saving centralized control system of an air compressor, which comprises a control room, an air compressor room, a power distribution room and a cooling system, wherein the power distribution room supplies power to the control room, the air compressor room and the cooling system, a control cabinet, a workbench and a liquid crystal display screen are arranged in the control room, the control cabinet is respectively connected with the workbench and the liquid crystal display screen through wires, and the cooling system cools the air compressor in the air compressor room through a cooling water pipeline;
the air compressor room is internally provided with a plurality of air compressors, the control ends of the air compressors are respectively connected to a control cabinet of the control room through wires, at least one air compressor of the air compressors is connected with a frequency converter, the control end of the frequency converter is connected with the control cabinet of the control room through wires, the air inlet of each air compressor is connected with air storage tanks through an air inlet pipeline, each air storage tank is provided with a first temperature transmitter, the air storage tanks are respectively connected to a main air outlet pipeline through branch pipes, and the main air outlet pipeline is provided with a first pressure transmitter;
the cooling system comprises two cooling towers, a water return tank and a water inlet tank, wherein the water outlet pipelines of the two cooling towers are connected in parallel and then enter the water inlet tank, the water outlet pipelines of the water inlet tank are connected with the water inlet of each air compressor through branch pipes, the water outlet of each air compressor is connected with the water return pipeline of the water return tank through branch pipes, the water outlet pipeline of the water inlet tank is provided with a second temperature transmitter, a second pressure transmitter and a first water pump, the water return pipeline of the water return tank is provided with a third temperature transmitter and a third pressure transmitter, the water outlet of each air compressor is provided with a flow switch, and a plurality of first temperature transmitters, a plurality of first pressure transmitters, a plurality of flow switches, the second temperature transmitters, the third temperature transmitters, the second pressure transmitters and the third pressure transmitters are connected to a control cabinet of the control room through wires.
The water return tank is connected with the water inlet tank through a first water pipe, the first water pipe is connected with a second water pipe through a second water pump, one end of the second water pipe is connected with a third water pipe and a fourth water pipe in parallel, the third water pipe is connected with the water return tank through a fourth water pipe, the fourth water pipe is connected with the water return pipes of two cooling towers in parallel, the other end of the second water pipe is connected with the water outlet pipe of the water inlet tank in parallel, a third water pump is arranged on the third water pipe, the control ends of the first water pump, the second water pump and the third water pump are respectively connected into a low-voltage starting cabinet of a water pump room, and the low-voltage starting cabinet is connected with a control cabinet in a control room through wires.
The frequency converter can also be connected with two air compressors simultaneously.
The control console is provided with an upper computer and an alarm module.
The plurality of air compressors comprise standby air compressors.
The control console is also provided with a video monitoring module, and the video monitoring module comprises a camera arranged in the air compressor room.
The control cabinet is communicated with a background control end in the scheduling room through a wireless and/or wired module to perform data transmission.
In order to solve the five problems at the same time, the utility model provides a variable-frequency energy-saving centralized control system of air compressors, which solves the problems of excessive air supply or insufficient air supply and manual air consumption control in the operation process of the air compressors by arranging a first pressure transmitter at an air inlet of each air compressor.
The utility model aims to solve the problem of electric energy consumption under the condition of electric impact and light load caused by direct starting of air compressors, adopts frequency conversion to control the operation of the air compressors, always ensures that at least one air compressor performs frequency conversion speed regulation, and other air compressors cooperate with power frequency operation, and an upper computer adjusts the rotating speed of the frequency conversion operation air compressor according to the underground air consumption and whether other air compressors are started or stopped, so as to realize continuous adjustment of air consumption, realize dynamic balance of air supply and air consumption, reduce the action times of an unloading valve of the air compressors, reduce energy consumption and save electric energy. Meanwhile, the utility model can also adopt one frequency converter to control the frequency conversion operation of two air compressors in a time-sharing way, thereby realizing the time-sharing double-frequency conversion operation of the air compressors. Meanwhile, the standby air compressor provided by the utility model can be used as a standby air compressor for variable-frequency speed regulation and a standby air compressor for power frequency.
According to the utility model, the control cabinet and the control console are arranged, so that the running states and running parameters of the air compressor and the cooling system can be monitored in real time. And (3) carrying out centralized protection on each device of the system, giving an alarm when a fault occurs, and making a shutdown action of the corresponding air compressor. And recording the operation parameters and fault information of the system, and inquiring at any time. All information of the centralized control system can be uploaded to a dispatching room, and remote network access can be performed. Thereby achieving the monitoring informatization of the air compressor.
The specific structure of the utility model needs to be described that the connection relation between the component modules adopted by the utility model is definite and realizable, and besides the specific description in the embodiment, the specific connection relation can bring about corresponding technical effects, and on the premise of not depending on execution of corresponding software programs, the technical problems of the utility model are solved, the types of the components, the modules and the specific components, the connection modes of the components and the expected technical effects brought by the technical characteristics are clear, complete and realizable, and the conventional use method and the expected technical effects brought by the technical characteristics are all disclosed in patents, journal papers, technical manuals, technical dictionaries and textbooks which can be acquired by a person in the field before the application date, or the prior art such as conventional technology, common knowledge in the field, and the like, so that the provided technical scheme is clear, complete and the corresponding entity products can be reproduced or obtained according to the technical means.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (7)
1. The utility model provides an energy-conserving centralized control system of air compressor machine frequency conversion which characterized in that: the air compressor cooling system comprises a control room, an air compressor room, a power distribution room and a cooling system, wherein the power distribution room supplies power to the control room, the air compressor room and the cooling system, a control cabinet, a workbench and a liquid crystal display screen are arranged in the control room, the control cabinet is respectively connected with the workbench and the liquid crystal display screen through wires, and the cooling system cools an air compressor in the air compressor room through a cooling water pipeline;
the air compressor room is internally provided with a plurality of air compressors, the control ends of the air compressors are respectively connected to a control cabinet of the control room through wires, at least one air compressor of the air compressors is connected with a frequency converter, the control end of the frequency converter is connected with the control cabinet of the control room through wires, the air inlet of each air compressor is connected with air storage tanks through an air inlet pipeline, each air storage tank is provided with a first temperature transmitter, the air storage tanks are respectively connected to a main air outlet pipeline through branch pipes, and the main air outlet pipeline is provided with a first pressure transmitter;
the cooling system comprises two cooling towers, a water return tank and a water inlet tank, wherein the water outlet pipelines of the two cooling towers are connected in parallel and then enter the water inlet tank, the water outlet pipelines of the water inlet tank are connected with the water inlet of each air compressor through branch pipes, the water outlet of each air compressor is connected with the water return pipeline of the water return tank through branch pipes, the water outlet pipeline of the water inlet tank is provided with a second temperature transmitter, a second pressure transmitter and a first water pump, the water return pipeline of the water return tank is provided with a third temperature transmitter and a third pressure transmitter, the water outlet of each air compressor is provided with a flow switch, and a plurality of first temperature transmitters, a plurality of first pressure transmitters, a plurality of flow switches, the second temperature transmitters, the third temperature transmitters, the second pressure transmitters and the third pressure transmitters are connected to a control cabinet of the control room through wires.
2. The variable frequency energy-saving centralized control system of an air compressor according to claim 1, wherein: the water return tank is connected with the water inlet tank through a first water pipe, the first water pipe is connected with a second water pipe through a second water pump, one end of the second water pipe is connected with a third water pipe and a fourth water pipe in parallel, the third water pipe is connected with the water return tank through a fourth water pipe, the fourth water pipe is connected with the water return pipes of two cooling towers in parallel, the other end of the second water pipe is connected with the water outlet pipe of the water inlet tank in parallel, a third water pump is arranged on the third water pipe, the control ends of the first water pump, the second water pump and the third water pump are respectively connected into a low-voltage starting cabinet of a water pump room, and the low-voltage starting cabinet is connected with a control cabinet in a control room through wires.
3. The variable frequency energy-saving centralized control system of the air compressor according to claim 2, wherein: the frequency converter can also be connected with two air compressors simultaneously.
4. The variable frequency energy-saving centralized control system of the air compressor according to claim 3, wherein: the workbench is provided with an upper computer and an alarm module.
5. The variable frequency energy-saving centralized control system of an air compressor according to claim 1, wherein: the plurality of air compressors comprise standby air compressors.
6. The variable frequency energy-saving centralized control system of an air compressor according to claim 1, wherein: the workbench is also provided with a video monitoring module, and the video monitoring module comprises a camera arranged in the air compressor room.
7. The variable frequency energy-saving centralized control system of an air compressor according to claim 1, wherein: the control cabinet is communicated with a background control end in the scheduling room through a wireless and/or wired module to perform data transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320298734.7U CN219639025U (en) | 2023-02-23 | 2023-02-23 | Variable-frequency energy-saving centralized control system of air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320298734.7U CN219639025U (en) | 2023-02-23 | 2023-02-23 | Variable-frequency energy-saving centralized control system of air compressor |
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| Publication Number | Publication Date |
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| CN219639025U true CN219639025U (en) | 2023-09-05 |
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| CN202320298734.7U Active CN219639025U (en) | 2023-02-23 | 2023-02-23 | Variable-frequency energy-saving centralized control system of air compressor |
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- 2023-02-23 CN CN202320298734.7U patent/CN219639025U/en active Active
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