System for controlling mining air compressor group

Abstract

The utility model discloses a system for controlling a mining air compressor group, which comprises a total starting module, a statistical module, a data processing module, a data processing module and a data processing module, the judgment module is used for sending a stop signal to any one air compressor when the duration of the loading falling edge of the air compressor is larger than or equal to first preset time, and the air compressors receiving the stop signal form a standby air compressor group; when the pressure of the whole system at a certain moment is smaller than or equal to the pressure of the whole system at the previous moment, the calculation module sends a starting signal to the air compressor with the shortest cumulative operation time in the standby air compressor group, so that the air compressor with the shortest cumulative operation time in the standby air compressor group is started; according to the utility model, the air compressor can be withdrawn or put into use in time, so that long-time loading or idling of a single air compressor is avoided; and according to comparison of the operation time of each air compressor, the air compressors are selectively put in and quit, and the operation time of all the air compressors in the air compressor system is balanced.

Description

Technical Field

[0001] The utility model belongs to the field of air compressor group control, in particular to a system for controlling a mining air compressor group. Background Art

[0002] An air compressor is a device used to compress gas. An air compressor is similar in construction to a water pump. Most air compressors are reciprocating piston, rotary vane or rotary screw.

[0003] The air compressor system uses PLC as the control core to communicate with the air compressor. By comparing the loading time and the running time, it timely puts the designated air compressor into or out of service according to the changes in the underground gas consumption, thus completing the automatic control and input and output of the air compressor.

[0004] When the air compressor is remotely controlled, the frequency can be adjusted manually, but the start or stop of the air compressor cannot be controlled in time according to the gas consumption of underground operations. When the gas consumption is small, the air compressor will idle, and when the gas consumption is large, the operating load of the unit is large; the idling of the equipment consumes electricity and reduces the life of the transmission parts, motors and other mechanical parts. The staff controls the operation of the equipment and cannot balance the use time of all the air compressors in the system, resulting in a large amount of maintenance and maintenance materials consumption due to the long-term operation of a single device. Utility Model Content

[0005] The utility model aims to provide a system for controlling a mining air compressor group, so as to solve the problems that when the gas consumption underground is small, the air compressor will idle, and when the gas consumption is large, the operating load of the unit is large; the equipment will waste electric energy when idling, and at the same time reduce the life of transmission parts, motors and other mechanical parts.

[0006] The utility model adopts the following technical scheme: a system for controlling a mining air compressor group, wherein the total air compressor group includes a plurality of air compressors, the plurality of air compressors are all connected to an underground compressed air pipeline, and the loading pressure setting values ​​of the air compressors are different and the air supply flow rate is the same;

[0007] The system includes:

[0008] The main startup module is used to start and operate all the air compressors in the main air compressor group;

[0009] Statistics module, used to count the cumulative running time of all running air compressors;

[0010] The judgment module sends a stop signal to any air compressor when the duration of the falling edge of air compressor loading is greater than or equal to the first predetermined time, and the air compressors that receive the stop signal form a standby air compressor group;

[0011] The calculation module, when all the running air compressors are loaded, when the pressure of the entire system at a certain moment is ≤ the pressure of the entire system at the previous moment, sends a start signal to the air compressor with the shortest cumulative running time in the standby air compressor group, so that the air compressor with the shortest cumulative running time in the standby air compressor group is started.

[0012] Further,

[0013] When all compressors are running and unloaded, this also includes:

[0014] A processing module, used for calculating the number of required loaded air compressors according to the current system flow average value / preset air supply flow of a single air compressor;

[0015] The sub-startup module is used to send a loading signal to the air compressor with the highest loading pressure setting value, the air compressor with the second highest loading pressure setting value, and so on according to the number of air compressors required to be loaded, until the number of loaded air compressors is equal to the number of air compressors required to be loaded.

[0016] The beneficial effects of the utility model are:

[0017] The utility model can timely exit or put into operation an air compressor, avoid long-time loading or idling of a single air compressor, save electric energy and reduce equipment loss; according to the comparison of the running time of each air compressor, the air compressor can be selectively put into operation or exited, and the running time of all air compressors in the air compressor system can be balanced, thereby extending the service life of the equipment, extending the maintenance cycle and reducing material loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Among them: 1. Standby air compressor group; 2. Statistics module; 3. Calculation module; 4. Judgment module. DETAILED DESCRIPTION

[0020] The utility model is described in detail below with reference to the accompanying drawings and specific implementation modes.

[0021] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0022] The utility model discloses a system for controlling a group of air compressors for mining. Figure 1 As shown, the total air compressor group includes multiple air compressors, all of which are connected to the underground compressed air pipeline, and the loading pressure setting value of each air compressor is different and the air supply flow rate is the same.

[0023] The system includes: a total startup module, a statistics module 2, a judgment module 4, and a calculation module 3. The total startup module is used to start and run all the air compressors in the total air compressor group; the statistics module 2 is used to count the cumulative running time of all running air compressors.

[0024] The judgment module 4 is used to send a stop signal to any air compressor when the duration of the falling edge of air compressor loading appears ≥ the first predetermined time, and the air compressors that receive the stop signal form a standby air compressor group 1.

[0025] The calculation module 3 is used to send a start signal to the air compressor with the shortest cumulative running time in the standby air compressor group 1 when the pressure of the entire system at a certain moment is ≤ the pressure of the entire system at the previous moment when all the running air compressors are loaded, so that the air compressor with the shortest cumulative running time in the standby air compressor group 1 is started.

[0026] When all the air compressors are in operation and not loaded, the utility model further includes: a processing module and a sub-starting module, the processing module being used to calculate the number of air compressors required to be loaded according to the current system flow average value / the preset air supply flow of a single air compressor; the sub-starting module being used to send a loading signal to the air compressor with the highest loading pressure setting value, the air compressor with the second highest loading pressure setting value, and so on according to the number of air compressors required to be loaded.

[0027] In the prior art, when remotely controlling the air compressor, the frequency can be adjusted manually, but the start or stop of the air compressor cannot be controlled in time according to the gas consumption of underground operations. When the gas consumption is small, the air compressor will idle, and when the gas consumption is large, the operating load of the unit is large; the idling of the equipment consumes electricity and reduces the life of the transmission parts, motors and other mechanical parts. The staff controls the operation of the equipment and cannot balance the use time of all the air compressors in the system, resulting in a large amount of maintenance and maintenance materials consumption due to the long-term operation of a single device.

[0028] The utility model can timely exit or put into operation an air compressor, avoid long-time loading or idling of a single air compressor, save electric energy and reduce equipment loss; according to the comparison of the running time of each air compressor, the air compressor can be selectively put into operation or exited, and the running time of all air compressors in the air compressor system can be balanced, thereby extending the service life of the equipment, extending the maintenance cycle and reducing material loss.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A system for controlling a mining air compressor group, characterized in that: The total air compressor group includes a plurality of air compressors, all of which are connected to the underground compressed air pipeline, and each of the air compressors has a different loading pressure setting value and the same air supply flow rate; The system comprises: The main startup module is used to start and operate all the air compressors in the main air compressor group; A statistics module (2), used for counting the cumulative running time of all running air compressors; A judgment module (4) sends a stop signal to any air compressor when the duration of the falling edge of air compressor loading is greater than or equal to a first predetermined time, and each air compressor that receives the stop signal forms a standby air compressor group (1); The calculation module (3) sends a start signal to the air compressor with the shortest cumulative running time in the standby air compressor group (1) when the pressure of the entire system at a certain moment is ≤ the pressure of the entire system at a previous moment when all the running air compressors are loaded, so that the air compressor with the shortest cumulative running time in the standby air compressor group (1) is started.

2. A system for controlling a mining air compressor group according to claim 1, characterized in that: When all compressors are running and unloaded, this also includes: A processing module, used for calculating the number of required loaded air compressors according to the current system flow average value / preset air supply flow of a single air compressor; The sub-startup module is used to send a loading signal to the air compressor with the highest loading pressure setting value, the air compressor with the second highest loading pressure setting value, and so on according to the number of air compressors required to be loaded, until the number of loaded air compressors is equal to the number of air compressors required to be loaded.

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