A method and system for regulating operating pressure of medical gas equipment

Abstract

The present invention relates to the technical field of medical gas equipment, and in particular to a method and system for regulating the operating pressure of medical gas equipment. The method comprises: dividing a day into a number of regulation cycles T; obtaining the rated gas production Q of the air compressor within the regulation cycle T, the terminal predicted total gas consumption (a%*Q), the gas storage tank volume V, the air compressor exhaust pressure P0, and the air compressor exhaust and gas storage tank gas temperature coefficient K, and establishing the start-stop number n and the minimum operating pressure P min and the maximum operating pressure P max Establish the objective function MinW and use the optimization algorithm to obtain the optimal value of the objective function MinW P min and P max , set the operating pressure range of the air storage tank within the current adjustment period T. The beneficial technical effects of the present invention include: reducing the operating energy consumption of the air compressor and saving energy by selecting a reasonable and effective operating mode.

Description

Technical Field

[0001] The present invention relates to the technical field of medical gas equipment, and in particular to a method and system for regulating the operating pressure of medical gas equipment. Background Art

[0002] With the development of the medical industry, service levels in the healthcare industry are constantly improving, and various medical equipment is constantly being upgraded. Medical gas equipment, as one of the key medical devices in hospitals, consumes significant energy. The power of the air compressors in medical air equipment ranges from 15kW, 18.5kW, 20kW, and 22kW. Medical air, vacuum pumps, and dental air units all need to operate continuously, consuming significant amounts of electricity. Hospitals and manufacturers are extremely concerned about equipment quality and the safety of gas system operation, but they often overlook the high energy consumption of medical gas equipment. Hospital managers typically adjust the operating pressure range arbitrarily and rarely change or adjust it once it's set, resulting in a fixed operating pressure range. However, in reality, an air compressor can only discharge gas when the exhaust pressure is increased. Higher exhaust pressures require more work and draw more current, which in turn consumes more power. However, if the upper operating pressure limit of the air compressor is set too low, the air in the gas tank will be rapidly depleted, causing the compressor to start frequently. Frequent start and stop of the air compressor can easily reduce the service life of the air compressor, resulting in reduced stability of the gas system and reduced safety of the gas system.

[0003] To this end, it is necessary to study a technology that can regulate the operating pressure of medical gas equipment. By adjusting the reasonable pressure operating range of medical gas equipment in real time, the power consumption of the air compressor can be reduced and energy can be saved while ensuring the safe supply of medical gas. Summary of the Invention

[0004] The technical problem to be solved by the present invention is: At present, there is a technical problem in the operation pressure regulation of medical gas equipment that the air compressor consumes a lot of power. A method and system for regulating the operation pressure of medical gas equipment are proposed. By selecting a reasonable and effective operation mode, the operation energy consumption of the air compressor is reduced, energy is saved, and the risk of gas system instability caused by frequent start and stop of the air compressor, which in turn affects the safety of the gas equipment, is reduced.

[0005] To solve the above technical problems, the present invention adopts the following technical solution: a method for regulating the operating pressure of medical gas equipment, which is used to regulate the operating pressure of an air compressor connected to a gas storage tank, comprising the following steps:

[0006] Divide a day into several adjustment cycles T;

[0007] Before the current regulation cycle T begins, obtain the rated gas production Q of the air compressor within the regulation cycle T and the terminal predicted total gas consumption as a%*Q, obtain the gas storage tank volume V, the air compressor exhaust pressure P0, and the air compressor exhaust and gas storage tank gas temperature coefficient K;

[0008] Establish the number of start and stop times n and the minimum operating pressure P min and the maximum operating pressure P max The relationship between

[0009] Establish the objective function Min W, where W represents the energy consumption of the air compressor, and use the optimization algorithm to obtain the optimal value P of the objective function Min W min and P max , set the operating pressure range of the gas tank in the current adjustment period T to [P min , P max ], when the operating pressure of the gas tank is lower than P min When the operating pressure of the gas tank is greater than P max When the air compressor is turned off,

[0010] Preferably, the objective function Min W is:

[0011]

[0012] Among them, n is the frequency of starting and stopping the air compressor, w1 is the power consumption of the air compressor during each startup phase, T is the adjustment cycle, is the power factor of the air compressor, U is the line voltage of the power input, and I is the line current of the power input.

[0013] Preferably, the adjustment period T is 1 hour, and one day is divided into 24 adjustment periods T.

[0014] Preferably, the method for obtaining the terminal predicted total gas consumption as a%*Q comprises:

[0015] Read the historical data of the terminal's total hourly gas consumption;

[0016] Calculate the average AVE of the historical gas consumption per hour in the historical data of the total gas consumption of the terminal;

[0017] The predicted total gas consumption a%*Q of the terminal in the next hour is equal to the weighted average of the hourly historical gas consumption average AVE corresponding to the next hour and the current hourly gas consumption.

[0018] As a preference, the start and stop times n and the minimum operating pressure P min and the maximum operating pressure P max The relationship is:

[0019] n=(1-a%)*a%*Q*P0 / [(P max -P min )*V*K]

[0020] Where a% is the ratio of the predicted usage to the rated gas output Q of the gas equipment, V is the volume of the gas storage tank, P0 is the exhaust pressure of the air compressor, and K is the temperature coefficient of the air compressor exhaust and the gas in the gas storage tank.

[0021] As a preferred option, when the terminal predicted total gas consumption of the first air compressor is a%*Q>100%*Q, and the operating pressure of the gas tank drops to 1.1*P min When the hospital is in a critical condition, the second air compressor is started. The operating pressure range setting method of the gas tank of the second air compressor is the same as that of the first air compressor. The maximum operating pressure of the gas tank of the second air compressor is lower than that of the first air compressor. When the rated gas production Q of the first air compressor reaches the gas volume required by the hospital and the operating pressure of the gas tank of the second air compressor reaches the maximum value, the second air compressor is shut down first.

[0022] An operating pressure regulating system for medical gas equipment, comprising:

[0023] The data reading module is used to divide a day into several adjustment cycles T. Before the start of the current adjustment cycle T, the rated gas production Q of the air compressor within the adjustment cycle T and the terminal predicted total gas consumption (a%*Q) are obtained, and the gas storage tank volume V, the air compressor exhaust pressure P0, and the temperature coefficient K between the air compressor exhaust and the gas storage tank are obtained;

[0024] Calculation module, used to establish the number of start and stop times n and the minimum operating pressure P min and the maximum operating pressure P max The relationship between and establish the objective function Min W;

[0025] Pressure regulation module, used to obtain the optimal value of the objective function Min W using the optimization algorithm P min and P max , set the operating pressure range of the gas tank in the current adjustment period T to [P min , P max ], when the operating pressure of the gas tank is lower than P min When the operating pressure of the gas tank is greater than P max When the air compressor is turned off,

[0026] Preferably, the system further comprises a communication module, the communication module being connected to a remote server, and the communication module being used to transmit the P value of the objective function Min W obtained by using the optimization algorithm to the remote server. min and P max Send to the remote server.

[0027] A computer device,

[0028] The computer device includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the computer program is executed by the processor, the method for regulating the operating pressure of medical gas equipment according to any one of claims 1 to 6 is implemented.

[0029] A computer-readable storage medium,

[0030] The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method for regulating the operating pressure of medical gas equipment according to any one of claims 1 to 6 is implemented.

[0031] The beneficial technical effects of the present invention include: adopting a method and system for regulating the operating pressure of medical gas equipment, by establishing the start-stop number n and the minimum operating pressure P min and the maximum operating pressure P max By using the relationship between the power consumption Min W of the air compressor and the number of starts and stops n, the power consumption Min W of the air compressor is associated with the operating pressure value, the operating pressure range is automatically adjusted and the number of starts and stops of the air compressor is monitored, thus realizing remote monitoring. By selecting a reasonable and effective operating mode, the operating energy consumption of the air compressor is reduced, energy is saved, and the risk of gas system instability caused by frequent starts and stops of the air compressor, which in turn affects the safety of gas equipment, is reduced.

[0032] Other features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The present invention will be further described below with reference to the accompanying drawings:

[0034] Figure 1 This is a flow chart of a method for regulating the operating pressure of medical gas equipment according to an embodiment of the present invention.

[0035] Figure 2 This is a schematic diagram of the current changes in the gas system of the medical gas equipment operation experiment in different operating pressure ranges according to an embodiment of the present invention.

[0036] Figure 3 This is a schematic diagram of the changes in power consumption of an air compressor in different operating pressure ranges during an operation experiment of medical gas equipment according to an embodiment of the present invention.

[0037] Figure 4 This is a structural diagram of the operating pressure regulation system of the medical gas equipment according to an embodiment of the present invention.

[0038] Figure 5The figure is a structural diagram of a computer device according to an embodiment of the present invention.

[0039] Among them: 20, data reading module, 21, calculation module, 22, pressure regulation module, 30, computer equipment; 31, memory; 32, computer program; 33, processor. DETAILED DESCRIPTION

[0040] The following is an explanation and description of the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention. However, the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the implementation manner, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0041] In the following description, terms such as "inside", "outside", "up", "down", "left", "right", etc. that indicate directions or positional relationships are only used to facilitate the description of the embodiments and simplify the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0042] Before describing the technical solution of this embodiment in detail, the background of the application of this embodiment is first introduced.

[0043] Medical gas refers to gases used directly or indirectly in the medical industry, and medical gas equipment refers to the equipment used to produce medical gas. Medical gas is also primarily used directly on patients or during medical procedures as a coolant and disinfectant. The medical gas equipment market can be divided into 10 categories: manifolds, ventilation ducts, integrated hoses and accessories, alarm systems, gas cylinders and accessories, flow meters, monitoring systems, medical air compressors, vacuum systems, and masks. Among these, medical air compressors (air compressors) are one of the primary medical gas equipment used in hospitals. Air compressors are miniature, oil-free, reciprocating piston compressors, primarily used to provide sufficient, clean air for healthcare equipment requiring air, such as dental equipment, oxygen concentrators, ventilators, and medical devices. Compressors for medical air equipment range in power from 15kW, 18.5kW, 20kW, and 22kW. Medical air, vacuum pumps, and dental air units all operate continuously around the clock, consuming significant amounts of electricity. Hospitals and manufacturers are extremely concerned about equipment quality and the safety of gas system operations, but they often overlook the high energy consumption associated with medical gas equipment. Hospital managers typically adjust the operating pressure range arbitrarily and rarely change or adjust it once it's set, resulting in a fixed operating pressure range. However, during operation, an air compressor can only discharge gas by increasing the exhaust pressure. Higher exhaust pressures require more work and draw more current, which in turn consumes more power. However, if the upper operating pressure limit is set too low, the air in the gas storage tank will be rapidly depleted, forcing the compressor to start and stop frequently. Frequent compressor starts and stops can shorten the compressor's lifespan, reduce the stability of the gas system, and compromise its safety.

[0044] Currently, there is a lack of devices on the market that can automatically adjust the energy-saving operating state of medical gas equipment. Medical gas equipment consumes a lot of energy, so there is a need for a technology that can adjust the operating pressure of medical gas equipment. By adjusting the reasonable pressure operating range of medical gas equipment in real time, the power consumption of the air compressor can be reduced and energy can be saved while ensuring the safe supply of medical gas.

[0045] The embodiment of the present application provides a method for regulating the operating pressure of a medical gas device, which is used to regulate the operating pressure of an air compressor connected to a gas storage tank. Figure 1 , including the following steps:

[0046] Step S01: Divide a day into several adjustment periods T.

[0047] Step S02: Before the current regulation cycle T begins, obtain the rated gas production Q of the air compressor within the regulation cycle T and the terminal predicted total gas consumption as a%*Q, obtain the gas storage tank volume V, the air compressor exhaust pressure P0, and the air compressor exhaust and gas storage tank gas temperature coefficient K.

[0048] Step S03: Establish the start and stop times n and the minimum operating pressure P min and the maximum operating pressure P max The relationship formula.

[0049] Step S04: Establish the objective function Min W, where W represents the energy consumption of the air compressor, and use the optimization algorithm to obtain the optimal value P of the objective function Min W. min and P max , set the operating pressure range of the gas tank in the current adjustment period T to [P min , P max ], when the operating pressure of the gas tank is lower than P min When the operating pressure of the gas tank is greater than P max When the air compressor is turned off.

[0050] On the other hand, in this embodiment, the objective function Min W is:

[0051]

[0052] Among them, n is the frequency of starting and stopping the air compressor, w1 is the power consumption of the air compressor during each startup phase, T is the adjustment cycle, is the power factor of the air compressor, U is the line voltage of the power input, and I is the line current of the power input.

[0053] On the other hand, in this embodiment, the adjustment period T is 1 hour, and one day is divided into 24 adjustment periods T.

[0054] On the other hand, in this embodiment, the method for obtaining the terminal predicted total gas consumption as a%*Q includes:

[0055] Read the historical data of the terminal's total hourly gas consumption;

[0056] Calculate the average AVE of the historical gas consumption per hour in the historical data of the total gas consumption of the terminal;

[0057] The predicted total gas consumption of the terminal in the next hour a%*Q is equal to the weighted average of the hourly historical gas consumption average AVE corresponding to the next hour and the current hourly gas consumption.

[0058] The hourly average gas usage (AVE) for the next hour reflects the hourly distribution of historical gas usage, while the current hourly gas usage reflects the gas usage caused by the current number of patients in the hospital. By calculating a weighted average of the hourly average gas usage (AVE) for the next hour and the current hourly gas usage, the air compressor operating pressure can be better adjusted.

[0059] On the other hand, in this embodiment, the start and stop times n and the minimum operating pressure P min and the maximum operating pressure P max The relationship is:

[0060] n=(1-a%)*a%*Q*P0 / [(P max -P min )*V*K]

[0061] Where a% is the ratio of the predicted usage to the rated gas output Q of the gas equipment, V is the volume of the gas storage tank, P0 is the exhaust pressure of the air compressor, and K is the temperature coefficient of the air compressor exhaust and the gas in the gas storage tank.

[0062] The operating pressure range is directly related to the number of starts and stops n of the air compressor. The lower the upper limit of the operating pressure range or the smaller the operating pressure range, the higher the number of starts and stops n of the air compressor. To ensure safe gas supply in the gas pipeline, the lower limit of the pressure within the operating pressure range can be adjusted slightly or less frequently, but the upper limit can be adjusted significantly. The larger the span of the operating pressure range, the fewer the number of starts and stops n of the air compressor, but the greater the energy consumption. Therefore, the upper limit of the pressure in the operating pressure range needs to be lowered. However, a lower upper limit of pressure also has certain problems. For example, a significant increase in the number of starts and stops increases the ineffective energy consumption of the air compressor and affects the safety of the gas pipeline. Therefore, it is necessary to moderately adjust the upper limit of the pressure in the operating range to reduce the energy consumption of the air compressor while taking into account the safety of the gas system.

[0063] On the other hand, in this embodiment, when the terminal predicted total gas consumption of the first air compressor is a%*Q>100%*Q, and the operating pressure of the gas tank drops to 1.1*P min When the hospital starts operating, the second air compressor is started. The operating pressure range setting method of the gas tank of the second air compressor is the same as that of the first air compressor. The maximum operating pressure of the gas tank of the second air compressor is lower than that of the first air compressor. When the rated gas production Q of the first air compressor reaches the gas consumption required by the hospital and the operating pressure of the gas tank of the second air compressor reaches the maximum value, the second air compressor is shut down first.

[0064] Hospital gas supply systems are usually equipped with two or more air compressors. The terminal predicts that the total gas consumption may exceed 100% of the gas production of a single air compressor, and in this case, two air compressors need to be operated simultaneously. When a single air compressor is running, the pressure in the gas tank continues to drop until it reaches P min When the gas output of a single air compressor can meet the gas demand of the hospital and the operating pressure of the gas tank of the second air compressor reaches the maximum value, the second air compressor will be shut down first.

[0065] Please see the attached Figure 2 The present embodiment provides a schematic diagram of the current change of the gas system in different operating pressure ranges of the operation experiment of the medical gas equipment. Through testing, it can be seen that the pressure and current of the medical gas equipment within an adjustment cycle T are positively correlated. The higher the upper limit of the operating pressure range, the greater the current.

[0066] Please see the attached Figure 3 , the schematic diagram of the power consumption variation of the air compressor in different operating pressure ranges in the operation experiment of the medical gas equipment provided in this embodiment, the upper limit P of the operating pressure range selection max The higher it is, the greater the operating current and energy consumption of the air compressor in the later stage of operation; at the same pressure lower limit, setting a lower pressure upper limit value can save more than 20% of the power consumption of the air compressor tank during the cycle compared to setting a higher pressure upper limit value.

[0067] Generally, in order to ensure the safety of gas system supply, P min Set it to at least 0.5 MPa and leave it unchanged for now. Air compressors come in a variety of types, including piston, screw, scroll, and centrifugal. Medical air compressors have two upper pressure limits: 0.85 MPa and 0.96 MPa.

[0068] For example, this embodiment takes an air compressor with a pressure upper limit of 0.85 MPa as an example for explanation:

[0069] Set pressure operating range, P max ={0.65MPa, 0.7MPa, 0.75MPa, 0.8MPa, 0.85MPa}, P min =0.5MPa and remains unchanged, the rated gas output Q within the air compressor adjustment period T = 1.59m 3 / min, the exhaust pressure of the air compressor P0 is 0.85MPa, and the volume of the air storage tank V is 3m 3 The temperature coefficient between the air compressor exhaust and the gas in the air storage tank is K = 2. A day is divided into 24 adjustment cycles T, each lasting 1 hour. The terminal's predicted total gas usage is a%*Q = {0%*Q, 10%*Q, 20%*Q, 30%*Q, 40%*Q, 50%*Q, 60%*Q, 70%*Q, 80%*Q, 90%*Q, 100%*Q}. There are various ways to define the gas flow range and compressor operating pressure range for the terminal's predicted total gas usage. This example provides a typical implementation.

[0070] (1) When the gas consumption is 0%Q, according to P max -P min The difference changes, then n = 0; 0; 0; 0; 0;

[0071] (2) When the gas consumption is 10% Q, according to P max -P min The difference changes, then n = 8.1; 6.08; 4.86; 4.05; 3.47;

[0072] (3) When the gas consumption is 20%Q, according to P max -P min The difference changes, then n = 14.4; 10.81; 8.64; 7.2; 6.17;

[0073] (4) When the gas consumption is 30%Q, according to P max -P min The difference changes, then n = 18.92; 14.19; 11.35; 9.46; 8.1;

[0074] (5) When the gas consumption is 40%Q, according to P max -P min The difference changes, then n = 21.62; 16.21; 12.97; 10.81; 9.26;

[0075] (6) When the gas consumption is 50% Q, according to P max -P min The difference changes, then n = 22.52; 16.89; 13.51; 11.26; 9.65;

[0076] (7) When the gas consumption is 60% Q, according to P max -P min The difference changes, then n = 21.62; 16.21; 12.97; 10.81; 9.26;

[0077] (8) When the gas consumption is 70% Q, according to P max -P min The difference changes, then n = 18.92; 14.19; 11.35; 9.46; 8.1;

[0078] (9) When the gas consumption is 80% Q, according to P max -P min The difference changes, then n = 14.4; 10.81; 8.64; 7.2; 6.17;

[0079] (10) When the gas consumption is 90% Q, according to P max -P min The difference changes, then n = 8.1; 6.08; 4.86; 4.05; 3.47;

[0080] (11) When the gas consumption is 100% Q, according to P max -P minIf the difference changes, then n=0;0;0;0;0.

[0081] According to the "Electrical Safety Technology and Management Manual" and other motor safety operation specifications, the motor is allowed to start continuously 2-3 times in a cold state, and the time interval between each start must not be less than 5 minutes. Therefore, the number of starts and stops n of the air compressor is tentatively set not to exceed 12 times.

[0082] (1) The gas consumption is detected to be (0,10% Q], n is selected from (0 to 9), P max Corresponding selection is 0.65MPa;

[0083] (2) The gas consumption is detected to be (10% Q, 20% Q], n is selected from (9 to 11), P max Corresponding selection is 0.7MPa;

[0084] (3) The gas consumption is detected to be (20% Q, 30% Q], n is selected (11-12), P max Corresponding selection is 0.75MPa;

[0085] (4) The gas consumption is detected to be (30% Q, 40% Q], n is selected (12~11), P max Corresponding selection: 0.8MPa;

[0086] (5) The gas consumption is detected to be (40% Q, 50% Q], n is selected (11-12), P max Corresponding selection: 0.8MPa;

[0087] (6) The gas consumption is detected to be (50% Q, 60% Q], n is selected (12~11), P max Corresponding selection: 0.8MPa;

[0088] (7) The gas consumption is detected to be (60% Q, 70% Q], n is selected (11-12), P max Corresponding selection: 0.8MPa;

[0089] (8) The gas consumption is detected to be (70% Q, 80% Q], n is selected from (12 to 11), P max Corresponding selection is 0.75MPa;

[0090] (9) The gas consumption is detected to be (80% Q, 90% Q], n is selected from (11 to 9), P max Corresponding selection is 0.7MPa;

[0091] (10) The gas consumption is detected to be (90% Q, 100% Q], n is selected (9~0), P max The corresponding selection is 0.65MPa.

[0092] The system can realize remote management and monitoring of the centralized controller through the web or mobile terminal through the communication module. When the pressure of the gas tank is lower than P min When the pressure of the air tank is greater than P max When the air compressor is turned off.

[0093] On the other hand, the embodiment of the present application also provides an operating pressure regulating system for medical gas equipment, see the attached Figure 4 ,include:

[0094] The data reading module 20 is used to divide a day into a number of regulation cycles T. Before the start of the current regulation cycle T, the rated gas production Q of the air compressor within the regulation cycle T and the terminal predicted total gas consumption (a%*Q) are obtained, and the gas storage tank volume V, the air compressor exhaust pressure P0, and the temperature coefficient K between the air compressor exhaust and the gas storage tank are obtained;

[0095] Calculation module 21, used to establish the start and stop times n and the minimum operating pressure P min and the maximum operating pressure P max The relationship between and establish the objective function Min W;

[0096] The pressure regulating module 22 is used to obtain the optimal value of the objective function Min W using an optimization algorithm. min and P max , set the operating pressure range of the gas tank in the current adjustment period T to [P min , P max ], when the operating pressure of the gas tank is lower than P min When the operating pressure of the gas tank is greater than P max When the air compressor is turned off.

[0097] On the other hand, in this embodiment, the system further includes a communication module, which is connected to the remote server and is used to obtain the optimal value of the objective function Min W using the optimization algorithm. min and P max Send to the remote server.

[0098] Normally, the equipment is automatically controlled and no operator intervention is required. However, when the automatic pressure control equipment fails, the operator will obtain the optimal value of P min and P max Regulate the pressure of the gas tank.

[0099] Among them, the operating pressure regulation method and system of the medical gas equipment in the embodiment of the present application are based on the same technical concept. Since the principles of the problems solved by the method and the system are similar, the embodiments of the system and the method can refer to each other, and the repeated parts will not be repeated.

[0100] On the other hand, the embodiment of the present application also provides a computer device, see the attached Figure 5 ,

[0101] The computer device 30 includes a memory 31, a processor 33, and a computer program 32 stored in the memory 31 and executable on the processor. When the computer program 32 is executed by the processor 33, a method for regulating the operating pressure of a medical gas device according to any one of claims 1 to 6 is implemented.

[0102] The computer device can be a general-purpose computer device or a dedicated computer device. In a specific implementation, the computer device can be a server cluster including multiple servers, such as a blockchain system including multiple nodes. It can be understood by those skilled in the art that the attached Figure 5 This is merely an example of a computer device and does not constitute a limitation on the computer device. The computer device may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, it may also include input and output devices, network access devices, etc.

[0103] The processor 33 may be a central processing unit (CPU), another general-purpose processor 33, a digital signal processor 33 (DSP), an application-specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor 33 may be a microprocessor 33 or any conventional processor 33.

[0104] In some embodiments, the memory 31 may be an internal storage unit of the computer device, such as a hard disk or memory of the computer device. In other embodiments, the memory 31 may also be an external storage device of the computer device, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) card, a flash memory card, etc. equipped on the computer device. Furthermore, the memory 31 may include both an internal storage unit of the computer device and an external storage device. The memory 31 is used to store an operating system, application programs, a boot loader, data, and other programs. The memory 31 may also be used to temporarily store data that has been output or is about to be output.

[0105] On the other hand, an embodiment of the present application further provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, it implements a method for regulating the operating pressure of a medical gas device as claimed in any one of claims 1 to 6.

[0106] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art will understand that the present invention includes, but is not limited to, the contents described in the drawings and the above specific embodiments. Any modifications that do not deviate from the functional and structural principles of the present invention are intended to be included within the scope of the claims.

Claims

1. A method for regulating the operating pressure of a medical gas device, for regulating the operating pressure of an air compressor connected to a gas storage tank, characterized in that: The following steps are involved: Divide a day into several adjustment cycles T; Before the current regulation cycle T begins, obtain the rated gas production Q of the air compressor within the regulation cycle T and the terminal's predicted total gas consumption (a%*Q), where a% is the ratio of the predicted consumption to the rated gas production Q of the gas equipment. Also obtain the gas storage tank volume V, the air compressor exhaust pressure P0, and the temperature coefficient K between the air compressor exhaust and the gas storage tank. Establish the relationship between the number of starts and stops n and the minimum operating pressure Pmin and the maximum operating pressure Pmax; Establish an objective function Min W, where W represents the energy consumption of the air compressor. Use an optimization algorithm to obtain the optimal values ​​Pmin and Pmax of the objective function Min W. Set the operating pressure range of the air tank within the current adjustment period T to [Pmin, Pmax]. When the operating pressure of the air tank is lower than Pmin, start the air compressor. When the operating pressure of the air tank is greater than Pmax, shut down the air compressor.

2. The method for regulating the operating pressure of medical gas equipment according to claim 1, characterized in that: The objective function Min W is: ， Among them, n is the frequency of start-stop of the air compressor, w1 is the power consumption of the air compressor during each startup phase, T is the adjustment period, cosφ is the power factor of the air compressor, U is the line voltage of the power input, and I is the line current of the power input.

3. The method for regulating the operating pressure of medical gas equipment according to claim 1, characterized in that: The adjustment period T is 1 hour, and one day is divided into 24 adjustment periods T.

4. The method for regulating the operating pressure of medical gas equipment according to claim 2, characterized in that: The method for obtaining the terminal predicted total gas consumption as a%*Q includes: Read the historical data of the terminal's total hourly gas consumption; Calculate the average AVE of the historical gas consumption per hour in the historical data of the total gas consumption of the terminal; The predicted total gas consumption of the terminal in the next hour a%*Q is equal to the weighted average of the hourly historical gas consumption average AVE corresponding to the next hour and the current hourly gas consumption.

5. A method for regulating the operating pressure of medical gas equipment according to any one of claims 1 to 4, characterized in that: The relationship between the number of starts and stops n and the minimum operating pressure Pmin and the maximum operating pressure Pmax is: ， Where a% is the ratio of the predicted usage to the rated gas output Q of the gas equipment, V is the volume of the gas storage tank, P0 is the exhaust pressure of the air compressor, and K is the temperature coefficient of the air compressor exhaust and the gas in the gas storage tank.

6. A method for regulating the operating pressure of medical gas equipment according to any one of claims 1 to 4, characterized in that: When the terminal predicted total gas consumption of the first air compressor is a%*Q>100%*Q and the operating pressure of the gas tank drops to 1.1*Pmin, the second air compressor is started. The operating pressure range setting method of the gas tank of the second air compressor is the same as that of the first air compressor. The maximum operating pressure of the gas tank of the second air compressor is lower than that of the first air compressor. When the rated gas production Q of the first air compressor reaches the gas consumption required by the hospital and the operating pressure of the gas tank of the second air compressor reaches the maximum value, the second air compressor is shut down first.

7. An operating pressure regulating system for medical gas equipment, characterized in that: include: The data reading module is used to divide a day into several adjustment cycles T. Before the start of the current adjustment cycle T, the rated gas production Q of the air compressor within the adjustment cycle T and the terminal predicted total gas consumption (a%*Q) are obtained, and the gas storage tank volume V, the air compressor exhaust pressure P0, and the temperature coefficient K between the air compressor exhaust and the gas storage tank are obtained; A calculation module, used to establish a relationship between the number of starts and stops n and the minimum operating pressure Pmin and the maximum operating pressure Pmax; The pressure regulation module is used to use the optimization algorithm to obtain Pmin and Pmax of the optimal values ​​of the objective function Min W, set the operating pressure interval of the air storage tank in the current regulation period T to [Pmin, Pmax], start the air compressor when the operating pressure of the air storage tank is lower than Pmin, and shut down the air compressor when the operating pressure of the air storage tank is greater than Pmax.

8. The operating pressure regulating system for medical gas equipment according to claim 7, characterized in that: The system further includes a communication module connected to a remote server, and configured to send Pmin and Pmax, which are optimal values ​​of the objective function Min W obtained using an optimization algorithm, to the remote server.

9. A computer device, characterized in that: The computer device includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the computer program is executed by the processor, the method for regulating the operating pressure of medical gas equipment according to any one of claims 1 to 6 is implemented.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method for regulating the operating pressure of medical gas equipment according to any one of claims 1 to 6 is implemented.

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