CN115263730A - Energy-saving management method and device for compressed air system - Google Patents
Energy-saving management method and device for compressed air system Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B41/00—Pumping installations or systems specially adapted for elastic fluids
- F04B41/06—Combinations of two or more pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
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- F04B49/065—Control using electricity and making use of computers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
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Abstract
The invention discloses an energy-saving management method and device of a compressed air system, which are characterized in that a first air flow and a first electric quantity of a first air compressor in the compressed air system are collected, and an iterative second air compressor is matched according to a first actual energy consumption value of the first air compressor; when a first operating pressure value of the second air compressor is detected in real time and is smaller than a first opening pressure value, judging whether the time that the first operating pressure value is smaller than the first opening pressure value is larger than a preset time threshold value or not, if not, not opening the third air compressor for air supplement, and if so, opening the third air compressor until the first operating pressure value is not smaller than the first opening pressure value; comparing the first operating pressure value with a first stopping pressure value, controlling the second air compressor to stop when the first operating pressure value reaches the first stopping pressure value, and starting the variable-frequency small air compressor to stabilize the first operating pressure value in a preset interval; compared with the prior art, the technical scheme of the invention can improve the energy-saving efficiency of the compressed air system.
Description
Technical Field
The invention relates to the technical field of compressed air systems, in particular to an energy-saving management method and device of a compressed air system.
Background
The existing compressed air systems of many thermal power plants or compressed air users have the conditions of high system energy consumption, low energy efficiency of air compressor products, many leakage points of pipelines, serious aging of post-treatment equipment and the like, generally, according to the conditions, most users directly replace the products of the air compressors, replace the air compressor equipment with high energy consumption and aging into iteration products with low energy consumption for energy conservation, other equipment still keeps in use after the iteration is updated, the cost is controlled, no analysis is made on energy consumption data in the operation process, maintenance of a later-stage system except fault maintenance is carried out, long-term attention is not paid to one energy-saving effect of the system, timely adjustment is carried out, the energy conservation of the compressed air system is not complete, the whole energy-saving effect is generally changed into an energy-saving space which is only about 10% -13% for a long time after main equipment is manufactured, and the energy-saving space is difficult to continuously maintain above 20%.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the energy-saving management method and device for the compressed air system are provided, and the energy-saving efficiency of the compressed air system is improved.
In order to solve the technical problem, the invention provides an energy-saving management method of a compressed air system, which comprises the following steps:
calculating a first actual energy consumption value of a first air compressor according to the acquired first air flow and first electric quantity of the first air compressor in the compressed air system, and matching an iterative second air compressor to the compressed air system according to the first actual energy consumption value;
detecting a first operating pressure value of the second air compressor in real time, comparing the first operating pressure value with a first opening pressure value, when the first operating pressure value is smaller than the first opening pressure value, judging whether the time that the first operating pressure value is smaller than the first opening pressure value is larger than a preset time threshold value, if not, not opening a third air compressor for air supplement, if so, opening the third air compressor for air supplement until the first operating pressure value is not smaller than the first opening pressure value;
and comparing the first operation pressure value with a first stop pressure value, controlling the second air compressor to stop operation when the first operation pressure value reaches the first stop pressure value, and starting the variable-frequency small air compressor so that the variable-frequency small air compressor stabilizes the first operation pressure value in a preset interval.
In a possible implementation manner, the energy-saving management method for a compressed air system provided by the present invention further includes:
and calculating a second actual energy consumption value of the first post-processing equipment according to the collected second air flow and second electric quantity of the first post-processing equipment in the compressed air system, and matching iterative second post-processing equipment to the compressed air system according to the second actual energy consumption value.
In a possible implementation manner, after the iterative second air compressor is matched to the compressed air system, the method further includes:
detecting third air flow and third electric quantity of the second air compressor in real time, and calculating a third actual energy consumption value of the second air compressor according to the third air flow and the third electric quantity;
and judging whether the second air compressor is in an abnormal state or not according to the third actual energy consumption value, and if so, sending an equipment abnormality prompt to a user.
In a possible implementation manner, matching an iterative second air compressor to the compressed air system according to the first actual energy consumption value specifically includes:
comparing the first actual energy consumption value with a conventional energy consumption value corresponding to the first air compressor;
if the first actual energy consumption value is not equal to the conventional energy consumption value, matching a second air compressor corresponding to the first actual energy consumption value according to the first actual energy consumption value, and replacing the second air compressor with the first air compressor;
and if the first actual energy consumption value is equal to the conventional energy consumption value, taking the first air compressor as the second air compressor of the matching iteration.
In a possible implementation manner, calculating a first actual energy consumption value of a first air compressor according to a first air flow and a first electric quantity of the first air compressor in the collected compressed air system specifically includes:
under a preset working condition, generating a first air compressor data set by collecting air flow and electric quantity of a first air compressor at different time periods, wherein the first air compressor data set comprises an air flow data set and an electric quantity data set;
calculating the average value of the air flow data set to obtain a first air flow, calculating the average value of the electric quantity data set to obtain a first electric quantity, and calculating the ratio of the first electric quantity to the first air flow to obtain a first actual energy consumption value of the first air compressor.
In a possible implementation manner, the energy-saving management method for a compressed air system provided by the present invention further includes:
acquiring a pipeline arrangement structure of a compressed air system, judging whether the distance between pipelines is the minimum distance or not based on the pipeline arrangement structure, if so, keeping the current pipeline distance, otherwise, adjusting the current pipeline distance to enable the current pipeline distance to be the minimum distance, and updating the pipeline arrangement structure;
and judging whether the current corner number of the pipeline arrangement structure is the minimum corner number, if so, keeping the current corner data, otherwise, adjusting the current corner number to enable the current corner number to be the minimum corner number, and updating the pipeline arrangement structure.
In a possible implementation manner, after updating the pipe arrangement structure, the method further includes:
setting pressure gauges in different pipeline sections based on the updated pipeline arrangement structure, so that pipeline pressure corresponding to the pipeline sections is detected in real time according to the pressure gauges;
and when the pipeline pressure is detected to be lower than a preset pipeline pressure threshold value, judging that a leakage point exists in the pipeline section corresponding to the pipeline pressure, and sending a leakage alarm prompt.
The embodiment of the invention also provides an energy-saving management device of a compressed air system, which comprises: the system comprises an air compressor matching module, an air compressor starting module and an air compressor shutdown module;
the air compressor matching module is used for calculating a first actual energy consumption value of a first air compressor according to the collected first air flow and first electric quantity of the first air compressor in the compressed air system, and matching an iterative second air compressor to the compressed air system according to the first actual energy consumption value;
the air compressor starting module is used for detecting a first operating pressure value of the second air compressor in real time, comparing the first operating pressure value with a first starting pressure value, judging whether the time that the first operating pressure value is smaller than the first starting pressure value is larger than a preset time threshold value or not when the first operating pressure value is smaller than the first starting pressure value, if not, not starting the third air compressor for air supplement, and if so, starting the third air compressor for air supplement until the first operating pressure value is not smaller than the first starting pressure value;
the air compressor shutdown module is used for comparing the first operation pressure value with a first stop pressure value, controlling the second air compressor to be shut down when the first operation pressure value reaches the first stop pressure value, and starting the variable-frequency small air compressor so that the variable-frequency small air compressor can stabilize the first operation pressure value in a preset interval.
In a possible implementation manner, the present invention provides an energy saving management apparatus for a compressed air system, further comprising: a post-processing device matching module;
and the post-processing equipment matching module is used for calculating a second actual energy consumption value of the first post-processing equipment according to the collected second air flow and second electric quantity of the first post-processing equipment in the compressed air system, and matching iterative second post-processing equipment to the compressed air system according to the second actual energy consumption value.
In a possible implementation manner, the present invention provides an energy saving management apparatus for a compressed air system, further comprising: the second air compressor abnormity detection module;
the second air compressor abnormity detection module is used for detecting third air flow and third electric quantity of the second air compressor in real time, calculating a third actual energy consumption value of the second air compressor according to the third air flow and the third electric quantity, judging whether the second air compressor is in an abnormal state or not according to the third actual energy consumption value, and if yes, sending an equipment abnormity prompt to a user.
In a possible implementation manner, the air compressor matching module is configured to match an iterative second air compressor to the compressed air system according to the first actual energy consumption value, and specifically includes:
comparing the first actual energy consumption value with a conventional energy consumption value corresponding to the first air compressor;
if the first actual energy consumption value is not equal to the conventional energy consumption value, matching a second air compressor corresponding to the first actual energy consumption value according to the first actual energy consumption value, and replacing the second air compressor with the first air compressor;
and if the first actual energy consumption value is equal to the conventional energy consumption value, taking the first air compressor as the second air compressor of the matching iteration.
In a possible implementation manner, the air compressor matching module is configured to calculate a first actual energy consumption value of a first air compressor according to a first airflow and a first electric quantity of the first air compressor in the collected compressed air system, and specifically includes:
under a preset working condition, generating a first air compressor data set by collecting air flow and electric quantity of a first air compressor at different time periods, wherein the first air compressor data set comprises an air flow data set and an electric quantity data set;
calculating the average value of the air flow data sets to obtain a first air flow, calculating the average value of the electric quantity data sets to obtain a first electric quantity, and calculating the ratio of the first electric quantity to the first air flow to obtain a first actual energy consumption value of the first air compressor.
In a possible implementation manner, the energy-saving management apparatus for a compressed air system provided by the present invention further includes: further comprising: a pipeline arrangement structure adjustment module;
the pipeline arrangement structure adjusting module is used for acquiring a pipeline arrangement structure of a compressed air system, judging whether the distance between pipelines is the minimum distance or not based on the pipeline arrangement structure, if so, keeping the current pipeline distance, if not, adjusting the current pipeline distance to enable the current pipeline distance to be the minimum distance, and updating the pipeline arrangement structure; and judging whether the current corner number of the pipeline arrangement structure is the minimum corner number, if so, keeping the current corner data, otherwise, adjusting the current corner number to enable the current corner number to be the minimum corner number, and updating the pipeline arrangement structure.
In a possible implementation manner, the energy-saving management apparatus for a compressed air system provided by the present invention further includes: further comprising: a pipeline leakage detection module;
the pipeline leakage detection module is used for setting a pressure gauge in different pipeline sections based on the updated pipeline arrangement structure, so that the pressure gauge can detect the pipeline pressure corresponding to the pipeline sections in real time, and when the pipeline pressure is detected to be lower than a preset pipeline pressure threshold value, the pipeline leakage detection module judges that leakage points exist in the pipeline sections corresponding to the pipeline pressure and sends out a leakage alarm prompt.
An embodiment of the present invention further provides a terminal device, which includes a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, where the processor implements the energy saving management method for a compressed air system according to any one of the above items when executing the computer program.
The embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium includes a stored computer program, and when the computer program runs, a device in which the computer-readable storage medium is located is controlled to execute the energy saving management method for a compressed air system according to any one of the above described methods.
Compared with the prior art, the energy-saving management method and device for the compressed air system have the following beneficial effects:
calculating a first actual energy consumption value of a first air compressor in a compressed air system through the acquired first air flow and first electric quantity of the first air compressor, and matching an iterative second air compressor to the compressed air system according to the first actual energy consumption value; detecting a first operating pressure value of the second air compressor in real time, comparing the first operating pressure value with a first opening pressure value, when the first operating pressure value is smaller than the first opening pressure value, judging whether the time that the first operating pressure value is smaller than the first opening pressure value is larger than a preset time threshold value, if not, not opening a third air compressor for air supplement, if so, opening the third air compressor for air supplement until the first operating pressure value is not smaller than the first opening pressure value; and comparing the first operation pressure value with a first stop pressure value, controlling the second air compressor to stop operation when the first operation pressure value reaches the first stop pressure value, and starting the variable-frequency small air compressor so that the variable-frequency small air compressor stabilizes the first operation pressure value in a preset interval. Compared with the prior art, the technical scheme of the invention can optimize energy conservation by collecting energy consumption data and pressure use conditions, so that the whole energy-saving transformation is more reasonable, the energy-saving effect is better, meanwhile, the original simple pressure linkage control system is replaced by the intelligent start-stop equipment based on the pressure stabilizing interval, unnecessary power consumption is further saved, and the energy-saving efficiency of the compressed air system is improved.
Drawings
FIG. 1 is a schematic flow diagram of an embodiment of a method for energy efficient management of a compressed air system according to the present invention;
fig. 2 is a schematic structural diagram of an embodiment of an energy-saving management device of a compressed air system provided by the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1, fig. 1 is a schematic flow chart of an embodiment of an energy saving management method for a compressed air system according to the present invention, as shown in fig. 1, the method includes steps 101 to 103, specifically as follows:
step 101: according to the collected first airflow and first electric quantity of a first air compressor in the compressed air system, calculating a first actual energy consumption value of the first air compressor, and according to the first actual energy consumption value, matching an iterative second air compressor to the compressed air system.
In one embodiment, the compressed air system comprises four air compressors, and an aftertreatment device is connected behind each air compressor, wherein the aftertreatment device is an air dryer.
In one embodiment, energy consumption data is collected for a compressed air system with high energy consumption, specifically, an electric meter and an air flow meter are installed on each device on the compressed air system, so that the electric quantity and the air flow of each device can be obtained in real time, and meanwhile, the maximum pressure of the air required by the daily system is collected based on the nameplate and the pressure meter of each device on the compressed air system.
In one embodiment, based on the collected energy consumption data of the compressed air system, the energy consumption value of each device and the electric quantity consumed by unit gas quantity are calculated; based on the pressure and energy consumption of the compressed air system, an iterative air compressor which is most suitable for energy-saving reconstruction and auxiliary post-processing equipment are matched, so that the energy-saving effect of the reconstructed compressed air system reaches the optimal value, which is generally more than 20%.
In one embodiment, the maximum air pressure of the compressed air system is found by combining the system pressure, the rated pressure selected by the matched air compressor main equipment selected subsequently is larger than the maximum air pressure of the system, and in addition, the energy consumption data is electric energy consumed by unit air volume, namely XXKwh/m3.
Specifically, under a preset working condition, generating a first air compressor data set by collecting air flow and electric quantity of a first air compressor at different time periods, wherein the first air compressor data set comprises an air flow data set and an electric quantity data set; calculating the average value of the air flow data set to obtain a first air flow, calculating the average value of the electric quantity data set to obtain a first electric quantity, and calculating the ratio of the first electric quantity to the first air flow to obtain a first actual energy consumption value of the first air compressor. The preset working condition is a common operation working condition of a compressed air system. Preferably, the first air compressor collects the air flow and the electric quantity for nearly one month.
In one embodiment, the first actual energy consumption value is compared with a conventional energy consumption value corresponding to the first air compressor; if the first actual energy consumption value is not equal to the conventional energy consumption value, matching a second air compressor corresponding to the first actual energy consumption value according to the first actual energy consumption value, and replacing the second air compressor with the first air compressor; and if the first actual energy consumption value is equal to the conventional energy consumption value, taking the first air compressor as the second air compressor of the matching iteration.
In one embodiment, under a preset working condition, a second air compressor data set is generated by collecting air flow and electric quantity of first post-processing equipment in different time periods, wherein the second air compressor data set comprises an air flow data set and an electric quantity data set of the post-processing equipment; calculating the average value of the post-processing equipment air flow data set to obtain a second air flow, calculating the average value of the post-processing equipment electric quantity data set to obtain a second electric quantity, and calculating the ratio of the second electric quantity to the second air flow to obtain a second actual energy consumption value of the first post-processing equipment. Preferably, the first aftertreatment device is charged for approximately one month of aftertreatment device airflow and aftertreatment device power.
In an embodiment, the second actual energy consumption value is compared with a conventional energy consumption value of the post-processing device corresponding to the first post-processing device; if the second actual energy consumption value is not equal to the conventional energy consumption value of the post-processing equipment, matching second post-processing equipment corresponding to the second actual energy consumption value according to the second actual energy consumption value, and replacing the first post-processing equipment with the second post-processing equipment; and if the second actual energy consumption value is equal to the conventional energy consumption value of the post-processing equipment, taking the first post-processing equipment as the second post-processing equipment of the matching iteration.
In the embodiment, energy-saving transformation is considered in the aspect of the existing systematics from pure energy-saving modification of the air compressor, energy-saving transformation is optimized and energy-saving is carried out through on-site collection of energy consumption data and pressure use conditions in the early stage, the early-stage scheme of the whole energy-saving transformation is more reasonable, the energy-saving effect is better, and single energy-saving of the air compressor is changed into energy-saving of the system.
In one embodiment, a pipeline arrangement structure of a compressed air system is further obtained, whether the distance between pipelines is the minimum distance is judged based on the pipeline arrangement structure, if yes, the current pipeline distance is kept, and if not, the current pipeline distance is adjusted to enable the current pipeline distance to be the minimum distance, and the pipeline arrangement structure is updated; and judging whether the current corner number of the pipeline arrangement structure is the minimum corner number or not, if so, keeping the current corner data, otherwise, adjusting the current corner number to enable the current corner number to be the minimum corner number, and updating the pipeline arrangement structure to reduce the resistance loss during air conveying.
In one embodiment, for the second air compressor after matching, the second post-processing equipment, and the compression system pipeline after updating, an electric meter and a flow meter are also required to be installed, and the electric quantity data and the air flow data collected by the electric meter and the flow meter are associated with the intelligent control system, so that the intelligent control system can automatically analyze the energy consumption value of the compressed air system and the energy consumption value of each equipment in real time, and based on the analyzed energy consumption values, when the energy consumption values are found to be abnormal, the reasons for the abnormality are timely searched, accessories are optimized or replaced, and the whole energy saving effect is ensured to be continued by 20%.
Specifically, after the compressed air system is matched with an iterative second air compressor, a third air flow and a third electric quantity of the second air compressor are detected in real time, and a third actual energy consumption value of the second air compressor is calculated according to the third air flow and the third electric quantity; and judging whether the second air compressor is in an abnormal state or not according to the third actual energy consumption value, and if so, sending an equipment abnormality prompt to a user.
In one embodiment, after the compressed air system is matched with iterative second post-processing equipment, a fourth airflow and a fourth electric quantity of the second post-processing equipment are detected in real time, and a fourth actual energy consumption value of the second post-processing equipment is calculated according to the fourth airflow and the fourth electric quantity; and judging whether the second post-processing equipment is in an abnormal state or not according to the fourth actual energy consumption value, and if so, sending an equipment abnormality prompt to a user.
In one embodiment, based on the updated pipeline arrangement structure, pressure gauges are arranged in different pipeline sections, so that pipeline pressure corresponding to the pipeline sections is detected in real time according to the pressure gauges; and when the pipeline pressure is detected to be lower than a preset pipeline pressure threshold value, judging that a leakage point exists in the pipeline section corresponding to the pipeline pressure, and sending a leakage alarm prompt.
In this embodiment, install ammeter and flowmeter additional on every main installation and pipeline after the matching, carry out the analysis to energy consumption data in real time, reachs real-time energy-conserving effect, and original technique generally can not carry out real-time supervision to energy consumption backward, generally only can break down the back and maintain, can guarantee like this when equipment energy-conserving effect descends, can in time seek the reason and handle, guarantees that system's energy-conserving effect lasts more than 20%.
Step 102: detecting a first operating pressure value of the second air compressor in real time, comparing the first operating pressure value with a first opening pressure value, judging whether the time that the first operating pressure value is smaller than the first opening pressure value is larger than a preset time threshold value or not when the first operating pressure value is smaller than the first opening pressure value, if not, not opening the third air compressor for air supplement, and if so, opening the third air compressor for air supplement until the first operating pressure value is not smaller than the first opening pressure value.
In an embodiment, with the higher simple pressure linkage of idle rate in having now, change the pressure interval into and rationally open and stop the air compressor machine, judge the mechanism through setting up a time, after first operating pressure is less than first opening pressure value and lasts preset time threshold value, just can confirm because the pressure is low just can start third air compressor machine loading tonifying qi, avoided because pressure fluctuation suddenly, lead to generating the false signal and trigger the third air compressor machine and start, the air compressor machine that causes starts power consumptive waste.
Step 103: and comparing the first operation pressure value with a first stop pressure value, controlling the second air compressor to stop operation when the first operation pressure value reaches the first stop pressure value, and starting the variable-frequency small air compressor so that the variable-frequency small air compressor stabilizes the first operation pressure value in a preset interval.
In one embodiment, in order to save electricity in the pressure stabilizing process, the operation of the air compressor is immediately stopped when a first stop pressure value is set, namely a rated pressure value; for the condition of pressure reduction, the small frequency-conversion air compressor is used for maintaining the stable pressure in a certain interval, only when the air is used suddenly and the pressure is reduced to a value outside the stable pressure range, the large air compressor is started to supplement the air, the air compressor is stopped immediately after the air is supplemented, and the small frequency-conversion air compressor is used for maintaining the pressure range, so that the no-load power consumption is reduced. The air compressor is different from the existing air compressor, the air compressor can still continuously carry no load after the air compressor is loaded to rated pressure based on a pressure linkage mechanism, and the air compressor can be stopped if the air compressor is determined not to be lower than a certain value after 20 min; when the air compressor is in the no-load state, the air compressor is still in the starting state, but gas is not loaded, so that the process wastes electric energy.
In the embodiment, the original simple pressure linkage control system is replaced by the intelligent start-stop device with the pressure stabilizing interval, so that the loading rate of the air compressor is increased to 99% from 80%, unnecessary power consumption is further saved, and the energy-saving effect is better.
Example 2
Referring to fig. 2, fig. 2 is a schematic structural diagram of an embodiment of an energy-saving management device for a compressed air system provided by the present invention, and as shown in fig. 2, the device includes an air compressor matching module 201, an air compressor starting module 202, and an air compressor stopping module 203, which are specifically as follows:
the air compressor matching module 201 is configured to calculate a first actual energy consumption value of a first air compressor according to a first air flow and a first electric quantity of the first air compressor in the collected compressed air system, and match an iterative second air compressor to the compressed air system according to the first actual energy consumption value.
The air compressor starting module 202 is configured to detect a first operating pressure value of the second air compressor in real time, compare the first operating pressure value with a first starting pressure value, determine whether a time that the first operating pressure value is smaller than the first starting pressure value is greater than a preset time threshold value or not when the first operating pressure value is smaller than the first starting pressure value, if not, not start the third air compressor to supplement air, and if so, start the third air compressor to supplement air until the first operating pressure value is not smaller than the first starting pressure value.
The air compressor shutdown module 203 is configured to compare the first operating pressure value with a first shutdown pressure value, control the second air compressor to shutdown when the first operating pressure value reaches the first shutdown pressure value, and start the frequency conversion small air compressor, so that the frequency conversion small air compressor stabilizes the first operating pressure value in a preset interval.
In an embodiment, the present invention provides an energy saving management device for a compressed air system, further comprising: a post-processing device matching module;
and the post-processing equipment matching module is used for calculating a second actual energy consumption value of the first post-processing equipment according to the collected second air flow and second electric quantity of the first post-processing equipment in the compressed air system, and matching iterative second post-processing equipment to the compressed air system according to the second actual energy consumption value.
In an embodiment, the present invention provides an energy saving management device for a compressed air system, further comprising: the second air compressor abnormity detection module;
the second air compressor abnormity detection module is used for detecting third air flow and third electric quantity of the second air compressor in real time, calculating a third actual energy consumption value of the second air compressor according to the third air flow and the third electric quantity, judging whether the second air compressor is in an abnormal state or not according to the third actual energy consumption value, and if yes, sending an equipment abnormity prompt to a user.
In an embodiment, the air compressor matching module is configured to match an iterative second air compressor to the compressed air system according to the first actual energy consumption value, and specifically includes:
comparing the first actual energy consumption value with a conventional energy consumption value corresponding to the first air compressor;
if the first actual energy consumption value is not equal to the conventional energy consumption value, matching a second air compressor corresponding to the first actual energy consumption value according to the first actual energy consumption value, and replacing the second air compressor with the first air compressor;
and if the first actual energy consumption value is equal to the conventional energy consumption value, taking the first air compressor as the second air compressor of the matching iteration.
In an embodiment, the air compressor matching module is configured to calculate a first actual energy consumption value of a first air compressor according to a first airflow and a first electric quantity of the first air compressor in a collected compressed air system, and specifically includes:
under a preset working condition, generating a first air compressor data set by collecting air flow and electric quantity of a first air compressor in different time periods, wherein the first air compressor data set comprises an air flow data set and an electric quantity data set;
calculating the average value of the air flow data set to obtain a first air flow, calculating the average value of the electric quantity data set to obtain a first electric quantity, and calculating the ratio of the first electric quantity to the first air flow to obtain a first actual energy consumption value of the first air compressor.
In one embodiment, the present invention provides an energy-saving management device for a compressed air system, further comprising: a pipeline arrangement structure adjustment module;
the pipeline arrangement structure adjusting module is used for acquiring a pipeline arrangement structure of a compressed air system, judging whether the distance between pipelines is the minimum distance or not based on the pipeline arrangement structure, if so, keeping the current pipeline distance, if not, adjusting the current pipeline distance to enable the current pipeline distance to be the minimum distance, and updating the pipeline arrangement structure; and judging whether the current corner number of the pipeline arrangement structure is the minimum corner number, if so, keeping the current corner data, otherwise, adjusting the current corner number to enable the current corner number to be the minimum corner number, and updating the pipeline arrangement structure.
In an embodiment, the present invention provides an energy saving management device for a compressed air system, further comprising: a pipeline leakage detection module;
the pipeline leakage detection module is used for setting a pressure gauge in different pipeline sections based on the updated pipeline arrangement structure, so that the pressure gauge can detect the pipeline pressure corresponding to the pipeline sections in real time, and when the pipeline pressure is detected to be lower than a preset pipeline pressure threshold value, the pipeline leakage detection module judges that leakage points exist in the pipeline sections corresponding to the pipeline pressure and sends out a leakage alarm prompt.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working process of the apparatus described above may refer to the corresponding process in the foregoing method embodiment, and is not described herein again.
It should be noted that the above embodiments of the energy saving management device for a compressed air system are merely schematic, where the modules described as separate components may or may not be physically separate, and the components displayed as modules may or may not be physical units, may be located in one place, or may also be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
On the basis of the above embodiment of the energy-saving management method for the compressed air system, another embodiment of the present invention provides an energy-saving management terminal device for the compressed air system, which includes a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, and when the processor executes the computer program, the energy-saving management method for the compressed air system according to any one embodiment of the present invention is implemented.
Illustratively, the computer program may be partitioned in this embodiment into one or more modules that are stored in the memory and executed by the processor to implement the invention. The one or more modules may be a series of computer program instruction segments capable of performing specific functions for describing the execution of the computer program in the energy saving management terminal device of the compressed air system.
The energy-saving management terminal equipment of the compressed air system can be computing equipment such as a desktop computer, a notebook computer, a palm computer and a cloud server. The energy-saving management terminal equipment of the compressed air system can comprise, but is not limited to, a processor and a memory.
The Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. The general purpose processor may be a microprocessor or the processor may be any conventional processor or the like, the processor is the control center of the energy saving management terminal equipment of the compressed air system, and various interfaces and lines are used to connect various parts of the energy saving management terminal equipment of the whole compressed air system.
The memory may be used to store the computer programs and/or modules, and the processor may implement various functions of the energy saving management terminal device of the compressed air system by operating or executing the computer programs and/or modules stored in the memory and calling data stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function, and the like; the storage data area may store data created according to the use of the mobile phone, and the like. In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), at least one magnetic disk storage device, a Flash memory device, or other volatile solid state storage device.
On the basis of the above embodiment of the energy-saving management method for the compressed air system, another embodiment of the present invention provides a storage medium, where the storage medium includes a stored computer program, and when the computer program runs, the apparatus on which the storage medium is located is controlled to execute the energy-saving management method for the compressed air system according to any one of the embodiments of the present invention.
In this embodiment, the storage medium is a computer-readable storage medium, and the computer program includes computer program code, which may be in source code form, object code form, executable file or some intermediate form, and so on. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, read-Only Memory (ROM), random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.
In summary, according to the energy-saving management method and device for the compressed air system, the iterative second air compressor is matched according to the first actual energy consumption value of the first air compressor by acquiring the first airflow and the first electric quantity of the first air compressor in the compressed air system; when a first operation pressure value of the second air compressor detected in real time is smaller than a first opening pressure value, judging whether the time that the first operation pressure value is smaller than the first opening pressure value is larger than a preset time threshold value or not, if not, not opening the third air compressor for air supplement, if so, opening the third air compressor until the first operation pressure value is not smaller than the first opening pressure value; and comparing the first operation pressure value with the first stop pressure value, controlling the second air compressor to stop operation when the first operation pressure value reaches the first stop pressure value, and starting the frequency conversion small air compressor to stabilize the first operation pressure value in a preset interval. Compared with the prior art, the technical scheme of the invention can improve the energy-saving efficiency of the compressed air system.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. A method of energy efficient management of a compressed air system, comprising:
calculating a first actual energy consumption value of a first air compressor according to the acquired first air flow and first electric quantity of the first air compressor in the compressed air system, and matching an iterative second air compressor to the compressed air system according to the first actual energy consumption value;
detecting a first operating pressure value of the second air compressor in real time, comparing the first operating pressure value with a first opening pressure value, when the first operating pressure value is smaller than the first opening pressure value, judging whether the time that the first operating pressure value is smaller than the first opening pressure value is larger than a preset time threshold value, if not, not opening a third air compressor for air supplement, if so, opening the third air compressor for air supplement until the first operating pressure value is not smaller than the first opening pressure value;
and comparing the first operation pressure value with a first stop pressure value, controlling the second air compressor to stop operation when the first operation pressure value reaches the first stop pressure value, and starting the variable-frequency small air compressor so that the variable-frequency small air compressor stabilizes the first operation pressure value in a preset interval.
2. An energy saving management method of a compressed air system according to claim 1, further comprising:
and calculating a second actual energy consumption value of the first post-processing equipment according to the acquired second air flow and second electric quantity of the first post-processing equipment in the compressed air system, and matching iterative second post-processing equipment to the compressed air system according to the second actual energy consumption value.
3. The energy-saving management method for the compressed air system according to claim 1, wherein after the iterative second air compressor is matched to the compressed air system, the method further comprises the following steps:
detecting a third air flow and a third electric quantity of the second air compressor in real time, and calculating a third actual energy consumption value of the second air compressor according to the third air flow and the third electric quantity;
and judging whether the second air compressor is in an abnormal state or not according to the third actual energy consumption value, and if so, sending an equipment abnormality prompt to a user.
4. The energy-saving management method for the compressed air system according to claim 1, wherein the step of matching an iterative second air compressor to the compressed air system according to the first actual energy consumption value specifically includes:
comparing the first actual energy consumption value with a conventional energy consumption value corresponding to the first air compressor;
if the first actual energy consumption value is not equal to the conventional energy consumption value, matching a second air compressor corresponding to the first actual energy consumption value according to the first actual energy consumption value, and replacing the second air compressor with the first air compressor;
and if the first actual energy consumption value is equal to the conventional energy consumption value, taking the first air compressor as the second air compressor of the matching iteration.
5. The energy-saving management method of the compressed air system according to claim 1, wherein the calculating of the first actual energy consumption value of the first air compressor according to the collected first air flow and first electric quantity of the first air compressor in the compressed air system specifically includes:
under a preset working condition, generating a first air compressor data set by collecting air flow and electric quantity of a first air compressor at different time periods, wherein the first air compressor data set comprises an air flow data set and an electric quantity data set;
calculating the average value of the air flow data set to obtain a first air flow, calculating the average value of the electric quantity data set to obtain a first electric quantity, and calculating the ratio of the first electric quantity to the first air flow to obtain a first actual energy consumption value of the first air compressor.
6. A method of energy efficient management of a compressed air system according to claim 1, further comprising:
acquiring a pipeline arrangement structure of a compressed air system, judging whether the distance between pipelines is the minimum distance or not based on the pipeline arrangement structure, if so, keeping the current pipeline distance, otherwise, adjusting the current pipeline distance to enable the current pipeline distance to be the minimum distance, and updating the pipeline arrangement structure;
and judging whether the current corner number of the pipeline arrangement structure is the minimum corner number, if so, keeping the current corner data, otherwise, adjusting the current corner number to enable the current corner number to be the minimum corner number, and updating the pipeline arrangement structure.
7. An energy saving management method for compressed air system according to claim 6, further comprising, after updating the pipe arrangement structure:
setting pressure gauges in different pipeline sections based on the updated pipeline arrangement structure, so that pipeline pressure corresponding to the pipeline sections is detected in real time according to the pressure gauges;
and when the pipeline pressure is detected to be lower than a preset pipeline pressure threshold value, judging that a leakage point exists in the pipeline section corresponding to the pipeline pressure, and sending a leakage alarm prompt.
8. An energy saving management device for a compressed air system, comprising: the system comprises an air compressor matching module, an air compressor starting module and an air compressor shutdown module;
the air compressor matching module is used for calculating a first actual energy consumption value of a first air compressor according to the collected first air flow and first electric quantity of the first air compressor in the compressed air system, and matching an iterative second air compressor to the compressed air system according to the first actual energy consumption value;
the air compressor starting module is used for detecting a first operating pressure value of the second air compressor in real time, comparing the first operating pressure value with a first starting pressure value, judging whether the time that the first operating pressure value is smaller than the first starting pressure value is larger than a preset time threshold value or not when the first operating pressure value is smaller than the first starting pressure value, if not, not starting the third air compressor for air supplement, and if so, starting the third air compressor for air supplement until the first operating pressure value is not smaller than the first starting pressure value;
the air compressor shutdown module is used for comparing the first operation pressure value with a first stop pressure value, controlling the second air compressor to be shut down when the first operation pressure value reaches the first stop pressure value, and starting the variable-frequency small air compressor so that the variable-frequency small air compressor can stabilize the first operation pressure value in a preset interval.
9. A terminal device comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, the processor implementing the energy saving management method of the compressed air system according to any one of claims 1 to 7 when executing the computer program.
10. A computer-readable storage medium, comprising a stored computer program, wherein the computer program, when executed, controls an apparatus in which the computer-readable storage medium is located to perform the method for energy efficient management of a compressed air system according to any one of claims 1 to 7.
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