CN116069077A - Operating pressure adjusting method and system for medical gas equipment - Google Patents
Operating pressure adjusting method and system for medical gas equipment Download PDFInfo
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- G05D16/20—Control of fluid pressure characterised by the use of electric means
- G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
- G05D16/2013—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means
- G05D16/2026—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means with a plurality of throttling means
Abstract
The invention relates to the technical field of medical gas equipment, in particular to a method and a system for adjusting the operating pressure of medical gas equipment, wherein the method comprises the following steps: dividing one day into a plurality of adjusting periods T; the method comprises the steps of obtaining rated gas yield Q in an air compressor regulating period T, predicting total gas consumption to be a% Q by a terminal, and obtaining the volume V of a gas storage tank and the exhaust pressure P of the air compressor 0 And the temperature coefficient K of the exhaust gas of the air compressor and the gas of the gas storage tank, and the minimum value P of the start-stop times n and the operating pressure are established min And an operating pressure maximum value P max Is a relation of (2); establishing an objective function MinW, and obtaining P of an optimal value of the objective function MinW by using an optimization algorithm min And P max And setting an operation pressure interval of the air storage tank in the current adjusting period T. The beneficial technical effects of the invention include: by selecting a reasonable and effective operation mode, the operation energy consumption of the air compressor is reduced, and the energy is saved.
Description
Technical Field
The invention relates to the technical field of medical gas equipment, in particular to a method and a system for adjusting the operating pressure of medical gas equipment.
Background
With the development of medical industry, the service level of the medical industry is continuously improved, and various medical equipment is continuously upgraded. The medical gas equipment is used as one of the main medical equipment in hospitals, the energy consumption is huge, wherein the power of an air compressor of the medical air equipment is 15KW, 18.5KW, 20KW, 22KW and the like, and the medical air, the vacuum pump and the dental air unit all need to be operated continuously day and night, and consume a large amount of electric power energy. Hospitals and manufacturers are extremely concerned about the quality of equipment and the safety of operation of gas systems, but often neglect the problem of high energy consumption of medical gas equipment. Hospital administrators typically adjust the operating pressure interval at will, and once the adjustment is complete, there is little change or adjustment, resulting in an invariable operating pressure interval. In practice, however, the air compressor can only discharge the air after increasing the discharge pressure during operation, and the higher the discharge pressure, the more work is required, the larger the current, and the larger the current, the larger the power consumed. However, if the upper limit of the operation pressure of the air compressor is set too low, the air in the air storage tank is rapidly consumed, and the air compressor is frequently started. The frequent start and stop times of the air compressor can easily reduce the service life of the air compressor, so that the stability of the gas system is reduced, and the safety of the gas system is reduced.
Therefore, it is necessary to study a technology capable of adjusting the operation pressure of the medical gas equipment, and by adjusting the reasonable pressure operation interval of the medical gas equipment in real time, the power consumed by the air compressor is reduced and the energy is saved on the premise of ensuring the safe supply of the medical gas.
Disclosure of Invention
The invention aims to solve the technical problems that: the technical problem that the power consumed by an air compressor is high exists in the operation pressure adjustment of the existing medical gas equipment is solved, and the operation pressure adjustment method and system of the medical gas equipment are provided.
In order to solve the technical problems, the invention adopts the following technical scheme: an operation pressure adjusting method for medical gas equipment is used for adjusting the operation pressure of an air compressor connected with a gas storage tank and comprises the following steps:
dividing one day into a plurality of adjusting periods T;
before the current regulation period T starts, acquiring rated gas yield Q in the regulation period T of the air compressor and a predicted total gas consumption of a terminal as a% Q, and acquiring the volume V of a gas storage tank and the exhaust pressure P of the air compressor 0 Air compressorThe temperature coefficient K of the exhaust gas and the gas of the gas storage tank;
establishing the start-stop times n and the minimum value P of the running pressure min And an operating pressure maximum value P max Is a relation of (2);
establishing an objective function Min W, wherein W represents energy consumption of the air compressor, and obtaining P of an optimal value of the objective function Min W by using an optimization algorithm min And P max Setting the operation pressure interval of the air storage tank in the current regulation period T as [ P ] min ，P max ]When the operating pressure of the air storage tank is lower than P min When the operation pressure of the air storage tank is greater than P, the air compressor is started max And closing the air compressor when the air compressor is in a closed state.
Preferably, the objective function Min W is:
wherein n is the start-stop frequency and w of the air compressor 1 For the power consumption of the air compressor at each starting stage, T is the regulating period,
the power factor of the air compressor is that U is the line voltage input by the power supply, and I is the line current input by the power supply.
Preferably, the adjustment period T is 1 hour, and one day is divided into 24 adjustment periods T.
Preferably, the method for obtaining the terminal to predict that the total gas consumption is a% Q includes:
reading historical data of total gas consumption of a terminal per hour;
calculating average value AVE of the historical gas consumption per hour in the historical data of the total gas consumption of the terminal;
and the predicted total gas consumption a% and Q of the terminal in the next hour is equal to the weighted average of the historical gas consumption average AVE of the hour corresponding to the next hour and the gas consumption of the current hour.
Preferably, the start-stop times n and the minimum operating pressure P min And an operating pressure maximum value P max The relation of (2) is:
n＝(1-a％)*a％*Q*P 0 /[(P max -P min )*V*K]
wherein a% is the ratio of the predicted consumption to the rated gas yield Q of the gas equipment, V is the volume of a gas storage tank, and P 0 The exhaust pressure of the air compressor is K, and the temperature coefficient of the exhaust gas of the air compressor and the gas of the gas storage tank is K.
Preferably, when the terminal of the first air compressor predicts that the total air consumption is a% > Q>100% Q and the operating pressure of the reservoir drops to 1.1 x p min When the rated gas yield Q of the first air compressor reaches the gas consumption required by a hospital and the operating pressure of the gas storage tank of the second air compressor reaches the maximum value, the second air compressor is preferably closed.
An operating pressure regulating system for a medical gas device, comprising:
the data reading module is used for dividing one day into a plurality of adjusting periods T, acquiring rated gas production Q in the adjusting period T of the air compressor and terminal predicted total gas consumption as a% and Q before the current adjusting period T starts, and acquiring the volume V of the gas storage tank and the exhaust pressure P of the air compressor 0 The temperature coefficient K of the exhaust gas of the air compressor and the gas of the gas storage tank;
a calculation module for establishing the start-stop times n and the minimum value P of the operating pressure min And an operating pressure maximum value P max And establishing an objective function Min W;
a pressure regulating module for obtaining P of the optimal value of the objective function Min W by using an optimization algorithm min And P max Setting the operation pressure interval of the air storage tank in the current regulation period T as [ P ] min ，P max ]When the operating pressure of the air storage tank is lower than P min When the operation pressure of the air storage tank is greater than P, the air compressor is started max And closing the air compressor when the air compressor is in a closed state.
Preferably, the system further comprisesComprises a communication module connected with a remote server, wherein the communication module is used for obtaining the P of the optimal value of an objective function Min W by using an optimization algorithm min And P max And sending the data to a remote server.
A computer-readable medium comprising a computer program product,
the computer device comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, which computer program, when executed by the processor, implements a method for regulating the operating pressure of a medical gas device according to any one of claims 1 to 6.
A computer-readable storage medium comprising a memory, a storage medium, and a memory,
the computer-readable storage medium stores a computer program which, when executed by a processor, implements a method of operating pressure adjustment of a medical gas device according to any one of claims 1 to 6.
The beneficial technical effects of the invention include: by adopting the method and the system for regulating the operating pressure of the medical gas equipment, the start-stop times n and the minimum value P of the operating pressure are established min And an operating pressure maximum value P max The relation of the power consumption Min W of the air compressor and the start-stop times n is related to the value of the operation pressure, the operation pressure interval is automatically adjusted, the start-stop times of the air compressor are monitored, and the remote monitoring is realized; by selecting a reasonable and effective operation mode, the operation energy consumption of the air compressor is reduced, energy is saved, and the risk that the gas system is unstable and the safety of gas equipment is influenced due to the fact that the air compressor is frequently started and stopped is reduced.
Other features and advantages of the present invention will be disclosed in the following detailed description of the invention and the accompanying drawings.
Drawings
The invention is further described with reference to the accompanying drawings:
FIG. 1 is a flow chart of a method for regulating the operating pressure of a medical gas device according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of current change of a gas system of an operation experiment of a medical gas device in different operation pressure intervals according to an embodiment of the present invention.
Fig. 3 is a schematic diagram showing power consumption variation of an air compressor in an operation experiment of a medical gas device in different operation pressure intervals according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of an operating pressure adjusting system of a medical gas apparatus according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a computer device according to an embodiment of the present invention.
Wherein: 20. the system comprises a data reading module 21, a calculating module 22, a pressure adjusting module 30 and computer equipment; 31. a memory; 32. a computer program; 33. a processor.
Detailed Description
The technical solutions of the embodiments of the present invention will be explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the examples in the implementation manner, other examples obtained by a person skilled in the art without making creative efforts fall within the protection scope of the present invention.
In the following description, directional or positional relationships such as the terms "inner", "outer", "upper", "lower", "left", "right", etc., are presented for convenience in describing the embodiments and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.
Before explaining the technical scheme of the present embodiment in detail, first, a description is given of a background situation to which the present embodiment is applied.
Medical gas refers to gas directly or indirectly applied to medical industry, and medical gas equipment refers to equipment for producing medical gas. In addition, medical gases are also used directly in patients or medical procedures, mainly as coolants and disinfectants. The medical gas equipment market can be divided into 10 types, namely manifolds, ventilation pipes, integrated hoses and accessories, alarm systems, gas cylinders and accessories, flow meters, supervision systems, medical air compressors, vacuum systems, masks and the like. Among them, a medical air compressor (air compressor) is one of the main medical gas devices in hospitals. The air compressor belongs to a miniature oil-free reciprocating piston compressor, and is mainly used for providing sufficient and clean air source for medical care equipment needing the air source, and is suitable for dental equipment, oxygenerator equipment, breathing machine equipment, medical equipment and the like. The power of the air compressor of the medical air equipment is 15KW, 18.5KW, 20KW, 22KW and the like, and the medical air, the vacuum pump and the dental air unit all need to run around the clock, thus consuming a large amount of electric power energy. Hospitals and manufacturers are extremely concerned about the quality of equipment and the safety of operation of gas systems, but often neglect the problem of high energy consumption of medical gas equipment. Hospital administrators typically adjust the operating pressure interval at will, and once the adjustment is complete, there is little change or adjustment, resulting in an invariable operating pressure interval. In practice, however, the air compressor can only discharge the air after increasing the discharge pressure during operation, and the higher the discharge pressure, the more work is required, the larger the current, and the larger the current, the larger the power consumed. However, if the upper limit of the operation pressure of the air compressor is set too low, the air in the air storage tank is rapidly consumed, and the air compressor is frequently started. The frequent start and stop times of the air compressor can easily reduce the service life of the air compressor, so that the stability of the gas system is reduced, and the safety of the gas system is reduced.
The device for automatically adjusting the energy-saving operation state of the medical gas equipment is lacking in the current market, and the medical gas equipment consumes larger energy, so that a technology capable of adjusting the operation pressure of the medical gas equipment is needed, the power consumed by the air compressor is reduced and the energy is saved by adjusting the reasonable pressure operation interval of the medical gas equipment in real time on the premise of ensuring the safe supply of the medical gas.
The embodiment of the application provides a method for adjusting the operating pressure of medical gas equipment, which is used for adjusting the operating pressure of an air compressor connected with a gas storage tank, referring to fig. 1, and comprises the following steps:
step S01: the day is divided into several adjustment periods T.
Step S02: before the current regulation period T starts, acquiring rated gas yield Q in the regulation period T of the air compressor and a predicted total gas consumption of a terminal as a% Q, and acquiring the volume V of a gas storage tank and the exhaust pressure P of the air compressor 0 And the temperature coefficient K of the exhaust gas of the air compressor and the gas of the gas storage tank.
Step S03: establishing the start-stop times n and the minimum value P of the running pressure min And an operating pressure maximum value P max Is a relation of (3).
Step S04: establishing an objective function Min W, wherein W represents energy consumption of the air compressor, and obtaining P of an optimal value of the objective function Min W by using an optimization algorithm min And P max Setting the operation pressure interval of the air storage tank in the current regulation period T as [ P ] min ，P max ]When the operating pressure of the air storage tank is lower than P min When the running pressure of the air storage tank is greater than P, the air compressor is started max And closing the air compressor when the air compressor is in a closed state.
On the other hand, in the present embodiment, the objective function Min W is:
wherein n is the start-stop frequency and w of the air compressor 1 For the power consumption of the air compressor at each starting stage, T is the regulating period,
the power factor of the air compressor is that U is the line voltage input by the power supply, and I is the line current input by the power supply.
On the other hand, in the present embodiment, the adjustment period T is 1 hour, and one day is divided into 24 adjustment periods T.
On the other hand, in this embodiment, the method for obtaining the predicted total gas consumption of the terminal is a% Q includes:
reading historical data of total gas consumption of a terminal per hour;
calculating average value AVE of the historical gas consumption per hour in the historical data of the total gas consumption of the terminal;
the predicted total air consumption a% and Q of the next hour of the terminal are equal to the weighted average of the historical air consumption average AVE of the hour corresponding to the next hour and the air consumption of the current hour.
The average value AVE of the historical gas consumption of the next hour corresponds to the distribution condition of the historical gas consumption of the reaction gas consumption in each hour, and the current gas consumption of the hour reflects the gas consumption caused by the current number of patients in the hospital. The weighted average value is calculated by the historical gas consumption average value AVE of the next hour and the current gas consumption of the next hour, so that the operation pressure of the air compressor can be better adjusted.
On the other hand, in the present embodiment, the start-stop times n and the minimum operating pressure P min And an operating pressure maximum value P max The relation of (2) is:
n＝(1-a％)*a％*Q*P 0 /[(P max -P min )*V*K]
wherein a% is the ratio of the predicted consumption to the rated gas yield Q of the gas equipment, V is the volume of a gas storage tank, and P 0 The exhaust pressure of the air compressor is K, and the temperature coefficient of the exhaust gas of the air compressor and the gas of the gas storage tank is K.
The operation pressure interval is directly related to the start-stop times n of the air compressor, and the lower the upper limit value of the operation pressure interval or the smaller the operation pressure interval is, the higher the start-stop times n of the air compressor are. In order to ensure that the gas pipeline is supplied with gas safely, the lower limit value of the pressure in the operation pressure interval can be adjusted in a small scale or less, but the upper limit value can be adjusted in a large scale, the larger the span of the operation pressure interval is, the smaller the number n of times the air compressor is started and stopped is, but the larger the energy consumption is, so that the upper limit value of the pressure in the operation pressure interval needs to be adjusted to be lower. However, the lower the upper pressure limit value is, the more the starting and stopping times are, for example, the more the starting and stopping times are, the non-effective energy consumption of the air compressor is improved, and the safety of the air pipeline is affected, so that the upper pressure limit value of the operation interval needs to be moderately adjusted, the energy consumption of the air compressor is reduced, and the safety of the air system is also considered.
On the other hand, in this embodiment, when the terminal of the first air compressor predicts that the total air consumption is a%. Q>100% Q and the operating pressure of the reservoir drops to 1.1 x p min When the second air compressor is started,the method for setting the operation pressure interval of the air storage tank of the second air compressor is consistent with that of the first air compressor, the maximum value of the operation pressure of the air storage tank of the second air compressor is smaller than that of the first air compressor, and when the rated gas yield Q of the first air compressor reaches the gas consumption required by a hospital and the operation pressure of the air storage tank of the second air compressor reaches the maximum value, the second air compressor is preferentially closed.
A hospital air supply system is typically configured with two or more air compressors. The terminal predicts that the total gas consumption can be 100% higher than the gas yield of a single air compressor, and two air compressors are required to operate simultaneously. When the single air compressor operates, the pressure of the air storage tank continuously drops to reach P min When the air yield of the single air compressor can meet the air consumption of a hospital and the operating pressure of an air storage tank of the second air compressor reaches the maximum value, the second air compressor is preferably closed.
Referring to fig. 2, a schematic diagram of current change of a gas system of an operation experiment of a medical gas device in different operation pressure intervals is shown, and the test shows that the pressure of the medical gas device in one adjustment period T is positively correlated with the current, and the higher the upper limit of the operation pressure interval is, the larger the current is.
Referring to fig. 3, the power consumption change diagram of the air compressor for the operation experiment of the medical gas apparatus in the embodiment in different operation pressure ranges is shown, and the upper limit P of the operation pressure range is selected max The higher the operation current of the air compressor in the later operation period is, the larger the energy consumption power is; and when the lower pressure limit is the same, the power consumption of the air storage tank of the air compressor, which runs in a period when the lower pressure upper limit is set, is more than 20% lower than that when the higher pressure upper limit is set.
Generally, to ensure the safety of the gas system supply, P min Setting at least 0.5MPa, and setting the value unchanged. The air compressor is of piston type, screw type, vortex type, centrifugal type and the like, and the upper pressure limit of the medical air compressor is limited0.85MPa and 0.96 MPa.
Illustratively, this embodiment is explained by taking an air compressor with an upper pressure limit of 0.85MPa as an example:
setting a pressure operation interval, P max ＝{0.65MPa，0.7MPa，0.75MPa，0.8MPa，0.85MPa}，P min =0.5 MPa and fixed, nominal gas yield q=1.59 m in the air compressor regulation period T 3 Air compressor discharge pressure P 0 0.85MPa, a gas reservoir volume v=3m 3 The temperature coefficient of the exhaust gas of the air compressor and the gas of the gas storage tank is K=2. The day is divided into 24 adjustment periods T, the adjustment period T is 1 hour, and the total air consumption of the terminal is predicted to be a% = {0% >, 10% >, 20% >, 30% >, 40% >, 50% >, 60% >, 70% >, 80% >, 90% >, 100% >. The gas flow range of the total gas consumption predicted by the terminal and the operation pressure interval of the air compressor are divided into a plurality of modes, and the embodiment provides a typical implementation mode.
(1) When the gas consumption is 0%Q, according to P max -P min The difference varies, then n=0; 0;0;0;0;
(2) When the gas consumption is 10% Q, according to P max -P min The difference varies, then n=8.1; 6.08;4.86;4.05;3.47;
(3) When the gas consumption is 20% Q, according to P max -P min The difference varies, then n=14.4; 10.81;8.64;7.2;6.17;
(4) When the gas consumption is 30% Q, according to P max -P min The difference varies, then n=18.92; 14.19;11.35;9.46;8.1;
(5) When the gas consumption is 40% Q, according to P max -P min The difference varies, then n=21.62; 16.21;12.97;10.81;9.26;
(6) When the gas consumption is 50% Q, according to P max -P min The difference varies, then n=22.52; 16.89;13.51;11.26;9.65;
(7) When the gas consumption is 60% Q, according to P max -P min The difference varies, then n=21.62; 16.21;12.97;10.81;9.26;
(8) When the gas consumption is 70% Q, according to P max -P min The difference varies, then n=18.92; 14.19;11.35;9.46;8.1;
(9) When the gas consumption is 80% Q, according to P max -P min The difference varies, then n=14.4; 10.81;8.64;7.2;6.17;
(10) When the gas consumption is 90% Q, according to P max -P min The difference varies, then n=8.1; 6.08;4.86;4.05;3.47;
(11) When the gas consumption is 100% Q, according to P max -P min The difference varies, then n=0; 0;0;0;0.
according to the requirements of electric safety technology and management manual and other safety operation specifications of motors, the motor is allowed to start continuously for 2-3 times in a cold state, and the time interval of each start is not less than 5 minutes, so that the number of times n of starting and stopping the temporary air compressor is not more than 12.
(1) The gas consumption was detected to be (0, 10% Q]N is selected from 0 to 9, P max Correspondingly selecting 0.65MPa;
(2) The gas consumption was detected to be (10% Q,20% Q)]N is selected from (9-11), P max Correspondingly selecting 0.7MPa;
(3) The gas consumption was detected at (20% Q,30% Q]N is selected from (11-12), P max Correspondingly selecting 0.75MPa;
(4) The gas consumption was detected at (30% Q,40% Q]N is selected from (12-11), P max Correspondingly selecting 0.8MPa;
(5) The gas consumption was detected at (40% Q,50% Q]N is selected from (11-12), P max Correspondingly selecting 0.8MPa;
(6) The gas consumption was detected to be (50% Q,60% Q)]N is selected from (12-11), P max Correspondingly selecting 0.8MPa;
(7) The gas consumption was detected to be (60% Q,70% Q)]N is selected from (11-12), P max Correspondingly selecting 0.8MPa;
(8) The gas consumption was detected to be (70% Q,80% Q]N is selected from (12-11), P max Correspondingly selecting 0.75MPa;
(9) The gas consumption was detected at (80% Q,90% Q]N is selected from (11-9), P max Correspondingly selecting 0.7MPa;
(10) The gas consumption was detected at (90% Q,100% Q]N is selected from (9-0), P max Correspondingly, 0.65MPa is selected.
The system can realize remote management and monitoring of the centralized controller by the web end or the mobile terminal through the communication module, and when the pressure of the air storage tank is lower than P min When the pressure of the air storage tank is larger than P, the air compressor is started max And closing the air compressor when the air compressor is in a closed state.
In another aspect, an embodiment of the present application further provides an operation pressure adjustment system of a medical gas apparatus, referring to fig. 4, including:
the data reading module 20 is configured to divide a day into a plurality of adjustment periods T, obtain a rated gas yield Q and a terminal predicted total gas consumption in the adjustment period T of the air compressor to a% Q before the current adjustment period T starts, and obtain a gas storage tank volume V and an air compressor exhaust pressure P 0 The temperature coefficient K of the exhaust gas of the air compressor and the gas of the gas storage tank;
a calculation module 21 for establishing the start-stop times n and the minimum operating pressure P min And an operating pressure maximum value P max And establishing an objective function Min W;
a pressure adjustment module 22 for obtaining P of the optimal value of the objective function Min W using an optimization algorithm min And P max Setting the operation pressure interval of the air storage tank in the current regulation period T as [ P ] min ，P max ]When the operating pressure of the air storage tank is lower than P min When the running pressure of the air storage tank is greater than P, the air compressor is started max And closing the air compressor when the air compressor is in a closed state.
On the other hand, in this embodiment, the system further includes a communication module, which is connected to the remote server, and is configured to obtain P, which is an optimal value of the objective function Min W, using an optimization algorithm min And P max And sending the data to a remote server.
Typically, the control is performed automatically by the device without the intervention of a worker. However, when the automatic control pressure equipment fails, the worker takes the optimal value P min And P max Regulating the pressure of the air reservoir。
The method and the system for adjusting the operating pressure of the medical gas equipment are based on the same technical concept, and because the principles of the problems solved by the method and the system are similar, the embodiments of the system and the method can be mutually referred to, and the repetition is not repeated.
In another aspect, embodiments of the present application further provide a computer device, referring to fig. 5,
the computer device 30 comprises a memory 31, a processor 33 and a computer program 32 stored in the memory 31 and executable on the processor, the computer program 32, when executed by the processor 33, implementing a method for regulating the operating pressure of a medical gas device according to any one of claims 1 to 6.
The computer device may be a general purpose computer device or a special purpose computer device. In a particular implementation, the computer device may be a server cluster including a plurality of servers, such as a blockchain system including a plurality of nodes. It will be appreciated by those skilled in the art that fig. 5 is merely an example of a computer device and is not intended to be limiting, and may include more or fewer components than shown, or may combine certain components, or different components, such as may also include input-output devices, network access devices, etc.
The processor 33 may be a central processing unit (Central Processing Unit, CPU), the processor 33 may also be other general purpose processors 33, digital signal processors 33 (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), off-the-shelf programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. The general purpose processor 33 may be a microprocessor 33 or may be any conventional processor 33.
The memory 31 may in some embodiments be an internal storage unit of a computer device, such as a hard disk or a memory of the computer device. The memory 31 may also be an external storage device of the computer device in other embodiments, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card) or the like, which are provided on the computer device. Further, the memory 31 may also include both internal storage units and external storage devices of the computer device. The memory 31 is used to store an operating system, application programs, boot Loader (Boot Loader), data, and other programs. The memory 31 may also be used to temporarily store data that has been output or is to be output.
In another aspect, embodiments of the present application further provide a computer readable storage medium storing a computer program, which when executed by a processor, implements a method for adjusting an operating pressure of a medical gas device according to any one of claims 1 to 6.
While the invention has been described in terms of embodiments, it will be appreciated by those skilled in the art that the invention is not limited thereto but rather includes the drawings and the description of the embodiments above. Any modifications which do not depart from the functional and structural principles of the present invention are intended to be included within the scope of the appended claims.
Claims (10)
1. An operation pressure adjusting method for medical gas equipment, which is used for adjusting the operation pressure of an air compressor connected with a gas storage tank, is characterized by comprising the following steps:
dividing one day into a plurality of adjusting periods T;
before the current regulation period T starts, acquiring rated gas yield Q in the regulation period T of the air compressor and a predicted total gas consumption of a terminal as a% Q, and acquiring the volume V of a gas storage tank and the exhaust pressure P of the air compressor 0 The temperature coefficient K of the exhaust gas of the air compressor and the gas of the gas storage tank;
establishing the start-stop times n and the minimum value P of the running pressure min And an operating pressure maximum value P max Is a relation of (2);
establishing an objective function Min W, wherein W represents energy consumption of the air compressor, and obtaining P of an optimal value of the objective function Min W by using an optimization algorithm min And P max Setting the current adjustment periodThe operation pressure interval of the air storage tank in the period T is [ P ] min ，P max ]When the operating pressure of the air storage tank is lower than P min When the operation pressure of the air storage tank is greater than P, the air compressor is started max And closing the air compressor when the air compressor is in a closed state.
2. A method for operating a medical gas device according to claim 1, wherein,
the objective function Min W is:
wherein n is the start-stop frequency and w of the air compressor 1 For the power consumption of the air compressor at each starting stage, T is the regulating period,
the power factor of the air compressor is that U is the line voltage input by the power supply, and I is the line current input by the power supply.
3. A method for operating a medical gas device according to claim 1, wherein,
the adjustment period T is 1 hour, and one day is divided into 24 adjustment periods T.
4. A method for operating a medical gas device according to claim 2, wherein,
the method for obtaining the predicted total gas consumption of the terminal as a% Q comprises the following steps:
reading historical data of total gas consumption of a terminal per hour;
calculating average value AVE of the historical gas consumption per hour in the historical data of the total gas consumption of the terminal;
and the predicted total gas consumption a% and Q of the terminal in the next hour is equal to the weighted average of the historical gas consumption average AVE of the hour corresponding to the next hour and the gas consumption of the current hour.
5. A method for regulating the operating pressure of a medical gas device according to claim 1-4,
the start-stop times n and the minimum value P of the operating pressure min And an operating pressure maximum value P max The relation of (2) is:
n＝(1-a％)*a％*Q*P 0 /[(P max -P min )*V*K]
wherein a% is the ratio of the predicted consumption to the rated gas yield Q of the gas equipment, V is the volume of a gas storage tank, and P 0 The exhaust pressure of the air compressor is K, and the temperature coefficient of the exhaust gas of the air compressor and the gas of the gas storage tank is K.
6. A method for regulating the operating pressure of a medical gas device according to claim 1-4,
when the terminal of the first air compressor predicts that the total air consumption is a% and Q>100% Q and the operating pressure of the reservoir drops to 1.1 x p min When the rated gas yield Q of the first air compressor reaches the gas consumption required by a hospital and the operating pressure of the gas storage tank of the second air compressor reaches the maximum value, the second air compressor is preferably closed.
7. An operating pressure regulating system for a medical gas device, comprising:
the data reading module is used for dividing one day into a plurality of adjusting periods T, acquiring rated gas production Q in the adjusting period T of the air compressor and terminal predicted total gas consumption as a% and Q before the current adjusting period T starts, and acquiring the volume V of the gas storage tank and the exhaust pressure P of the air compressor 0 The temperature coefficient K of the exhaust gas of the air compressor and the gas of the gas storage tank;
a calculation module for establishing the start-stop times n and the minimum value P of the operating pressure min And operating pressureMaximum value P max And establishing an objective function Min W;
a pressure regulating module for obtaining P of the optimal value of the objective function Min W by using an optimization algorithm min And P max Setting the operation pressure interval of the air storage tank in the current regulation period T as [ P ] min ，P max ]When the operating pressure of the air storage tank is lower than P min When the operation pressure of the air storage tank is greater than P, the air compressor is started max And closing the air compressor when the air compressor is in a closed state.
8. A system for regulating the operating pressure of a medical gas device as defined in claim 7,
the system also comprises a communication module which is connected with the remote server and is used for obtaining the P of the optimal value of the objective function Min W by using an optimization algorithm min And P max And sending the data to a remote server.
9. A computer device, characterized in that,
the computer device comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, which computer program, when executed by the processor, implements a method for regulating the operating pressure of a medical gas device according to any one of claims 1 to 6.
10. A computer-readable storage medium comprising,
the computer-readable storage medium stores a computer program which, when executed by a processor, implements a method of operating pressure adjustment of a medical gas device according to any one of claims 1 to 6.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116591947A (en) * | 2023-06-28 | 2023-08-15 | 克诺尔车辆设备(苏州)有限公司 | Air compressor control method and rail vehicle control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116591947A (en) * | 2023-06-28 | 2023-08-15 | 克诺尔车辆设备(苏州)有限公司 | Air compressor control method and rail vehicle control method |
| CN116591947B (en) * | 2023-06-28 | 2023-11-28 | 克诺尔车辆设备(苏州)有限公司 | Air compressor control method and rail vehicle control method |
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