Liquid compressed air standby system

Abstract

The invention relates to the technical field of liquid compressed air, and particularly discloses a liquid compressed air standby system, which comprises a first calculation module used for calculating the energy consumption influence degree of all types of equipment operation parameters of each type of equipment at the current moment; the second calculation module is used for calculating the yield influence degree of the operation parameters of all types of equipment of each type of equipment at the current moment; the construction module is used for obtaining regulation and control values of all types of equipment operation parameters of each type of equipment at the current moment based on the energy consumption influence degree and the yield influence degree of all types of equipment operation parameters of each type of equipment at the current moment; and the control module is used for obtaining an optimal liquid compressed air standby result based on the regulation and control values of the operation parameters of all types of equipment at the current moment. According to the method, the two aspects of energy consumption and liquid nitrogen yield are comprehensively considered, so that accurate regulation and control of all equipment of the liquid compressed air standby system are realized, and an optimal liquid compressed air standby result is realized.

Description

Technical Field

[0001] The invention relates to the technical field of liquid compressed air, and in particular to a liquid compressed air backup system. Background Art

[0002] At present, the liquid compressed air backup system is a system that uses liquid (such as water or other working media) to assist or control the storage, transmission and release of compressed air. It is currently commonly used for the preparation of liquid nitrogen. In industrial production, energy consumption is an important part of operating costs. For energy-intensive industries such as liquid nitrogen production, how to effectively reduce energy consumption and improve energy utilization efficiency is the key to reducing overall operating costs and improving competitiveness. Liquid nitrogen output is an important indicator for measuring the performance of liquid nitrogen production equipment. Maintaining the stability of liquid nitrogen output and maximizing production efficiency are of great significance to meeting market demand and reducing production waste. In the process of liquid nitrogen production, a variety of equipment (such as air compressors, coolers, distillation towers and liquefiers, etc.) and a variety of operating parameters (such as output pressure, speed, cooling temperature, etc.) are involved. These parameters interact with each other and jointly determine the energy consumption and liquid nitrogen output of the liquid compressed air backup system.

[0003] However, traditional equipment control methods are often based on experience or simple threshold judgments, and it is difficult to accurately quantify the impact of various operating parameters on energy consumption and output. This leads to unsatisfactory control effects and may cause problems such as increased energy consumption and decreased output. While pursuing energy consumption reduction, the stability of liquid nitrogen production also needs to be considered. How to find a balance between the two and achieve comprehensive optimization is an important challenge facing the field of liquid nitrogen production. Therefore, how to comprehensively consider energy consumption and liquid nitrogen output to achieve precise control of all equipment in the liquid compressed air backup system and achieve the best liquid compressed air backup results has become a major difficulty in the current preparation of liquid nitrogen through the liquid compressed air backup system.

[0004] Therefore, the present invention proposes a liquid compressed air backup system. Summary of the invention

[0005] The present invention provides a liquid compressed air backup system, which is used to obtain the energy consumption influence of all types of equipment operating parameters of each type of equipment at the current moment according to the processing parameters and energy consumption values ​​of all types of equipment operating parameters of each type of equipment at all times within a preset time period before the current moment, and realizes accurate quantification of the influence of each type of equipment operating parameters on equipment energy consumption at the current moment, and obtains the output influence of all types of equipment operating parameters of each type of equipment at the current moment according to the processing parameters of all types of equipment operating parameters of each type of equipment at all times within a preset time period before the current moment and the liquid nitrogen output at all times within the preset time period before the current moment, and realizes accurate quantification of the influence of each type of equipment operating parameters on liquid nitrogen output at the current moment according to each type of equipment. The processing parameters of the operating parameters of all types of equipment at all times in the preset time period before the current moment and the energy consumption impact and output impact of all types of equipment operating parameters of each type of equipment at the current moment are combined to obtain the equipment analysis matrix of each type of equipment at the current moment, and based on the equipment analysis matrix of each type of equipment at the current moment, the control values ​​of all types of equipment operating parameters of each type of equipment at the current moment are accurately obtained, which is convenient for the subsequent acquisition of the best liquid compressed air standby result, and finally the best liquid compressed air standby result is obtained according to the control values ​​of all types of equipment operating parameters of all types of equipment at the current moment, which realizes the comprehensive consideration of energy consumption and liquid nitrogen output to achieve precise control of all equipment, achieve the best liquid compressed air standby result, and reduce the overall operating cost.

[0006] The present invention provides a liquid compressed air backup system, comprising: A processing module, used to obtain processing parameters of the operating parameters of all types of equipment at each moment in a preset time period before the current moment based on the operating parameters of all types of equipment at each moment in a preset time period before the current moment; A first calculation module, configured to obtain the energy consumption impact of all types of device operating parameters of each type of device at the current moment based on the processing parameters and energy consumption values ​​of all types of device operating parameters of each type of device at all moments in a preset time period before the current moment; A second calculation module is used to obtain the production impact of all types of equipment operating parameters of each type of equipment at the current moment based on the processing parameters of all types of equipment operating parameters of each type of equipment at all times within a preset time period before the current moment and the liquid nitrogen production at all times within the preset time period before the current moment; A construction module is used to obtain an equipment analysis matrix for each type of equipment at the current moment based on the processing parameters of the operating parameters of all types of equipment at all moments in a preset time period before the current moment for each type of equipment and the energy consumption impact and output impact of the operating parameters of all types of equipment for each type of equipment at the current moment, and obtain the control values ​​of the operating parameters of all types of equipment for each type of equipment at the current moment based on the equipment analysis matrix for each type of equipment at the current moment; The control module is used to obtain the best liquid compressed air standby result based on the control values ​​of the operating parameters of all types of equipment at the current moment.

[0007] Preferably, the liquid compressed air backup system, the processing module, comprises: The first acquisition submodule is used to obtain the operating parameters of all types of equipment at each moment in a preset time period before the current moment, wherein all types of equipment include air compressors, coolers, distillation towers and liquefiers, and the operating parameters of all types of equipment of the air compressor include output pressure and rotation speed, the operating parameters of all types of equipment of the cooler include cooling temperature and cooling medium flow rate, the operating parameters of all types of equipment of the distillation tower include operating pressure and reflux ratio, and the operating parameters of all types of equipment of the liquefier include liquefaction pressure and refrigeration capacity; The processing submodule is used to obtain processing parameters of the operating parameters of all types of equipment for each type of equipment at each moment in a preset time period before the current moment based on the operating parameters of all types of equipment for each type of equipment at all moments in a preset time period before the current moment.

[0008] Preferably, the liquid compressed air backup system, the processing submodule, comprises: The first processing unit is used to determine whether the difference between the operation parameters of each type of equipment at each moment in the preset time period before the current moment and the operation parameters of the corresponding type of equipment at all adjacent moments of the corresponding moment is greater than the preset difference between the operation parameters of the corresponding type of equipment; if so, the average of the operation parameters of the corresponding type of equipment at all adjacent moments of the corresponding moment is used as the processing parameter of the operation parameters of the corresponding type of equipment at the corresponding moment; otherwise, the operation parameters of the corresponding type of equipment at the corresponding moment are used as the processing parameter of the operation parameters of the corresponding type of equipment at the corresponding moment; and when the difference between the operation parameters of each type of equipment at each moment in the preset time period before the current moment and the operation parameters of the corresponding type of equipment at only one adjacent moment of the corresponding moment is greater than the preset difference between the operation parameters of the corresponding type of equipment, the corresponding moment is used as the transition moment of the operation parameters of the corresponding type of equipment within the preset time period before the current moment; The second processing unit is used to take the corresponding type of device operating parameters with the most transition times among all type of device operating parameters of each type of device in a preset time period before the current moment as the observed device operating parameters of the corresponding type of device.

[0009] Preferably, the liquid compressed air backup system, the first calculation module, comprises: A first analysis submodule is used to use the numerical values ​​of the processing parameters of the operating parameters of each type of equipment at all moments within a preset time period before the current moment as the horizontal coordinate value, and the energy consumption value of the corresponding type of equipment at the corresponding moment as the vertical coordinate value, to obtain all energy consumption points of the operating parameters of each type of equipment within the preset time period before the current moment, and use the energy consumption point corresponding to the current moment among all the energy consumption points of the operating parameters of each type of equipment within the preset time period before the current moment as the observed energy consumption point of the operating parameters of the corresponding type of equipment of the corresponding type of equipment within the preset time period before the current moment, and use the remaining energy consumption points among all the energy consumption points of the operating parameters of each type of equipment within the preset time period before the current moment, except for the observed energy consumption points of the operating parameters of the corresponding type of equipment of the corresponding type of equipment within the preset time period before the current moment, as the reference energy consumption points of the operating parameters of the corresponding type of equipment of the corresponding type of equipment within the preset time period before the current moment; The first calculation submodule is used to obtain the energy consumption impact of each type of equipment operating parameter at the current moment based on all reference energy consumption points and observed energy consumption points of each type of equipment operating parameter within a preset time period before the current moment.

[0010] Preferably, the liquid compressed air backup system, the first computing submodule, comprises: A first analysis unit is used to regard the distance between each reference energy consumption point of each type of equipment operation parameter of each type of equipment in a preset time period before the current moment and the coordinate origin as the coordinate distance of the corresponding reference energy consumption point of the corresponding type of equipment operation parameter of the corresponding type of equipment in the preset time period before the current moment, and regard the distance between the observed energy consumption point of each type of equipment operation parameter of each type of equipment in the preset time period before the current moment and the coordinate origin as the coordinate distance of the observed energy consumption point of the corresponding type of equipment operation parameter of the corresponding type of equipment in the preset time period before the current moment; A second analysis unit is used to regard the distance between each reference energy consumption point of each type of equipment operation parameter of each type of equipment in a preset time period before the current moment and the observed energy consumption point of the corresponding type of equipment operation parameter of the corresponding type of equipment in the preset time period before the current moment as the reference distance of the corresponding reference energy consumption point of the corresponding type of equipment operation parameter of the corresponding type of equipment in the preset time period before the current moment, and regard the quotient value of the coordinate distance and the reference distance of each reference energy consumption point of each type of equipment operation parameter of each type of equipment in the preset time period before the current moment as the reference quotient value of the corresponding reference energy consumption point of the corresponding type of equipment operation parameter of the corresponding type of equipment in the preset time period before the current moment; The calculation unit is used to obtain the energy consumption impact of each type of equipment operating parameter of each type of equipment at the current moment based on the coordinate distance, reference distance and reference quotient value of all reference energy consumption points of each type of equipment operating parameter within a preset time period before the current moment, that is: in, is the energy consumption impact of the current computing device operating parameters at the current moment, is the number of reference energy consumption points of the operating parameters of the current computing device within a preset time period before the current moment, is the coordinate distance of the observed energy consumption point of the current computing device operation parameter within a preset time period before the current moment, is the sum of the coordinate distances of all reference energy consumption points of the current computing device operation parameters within a preset time period before the current moment, is the sum of the reference quotient values ​​of all reference energy consumption points of the current computing device operating parameters within a preset time period before the current moment, is the standard deviation of the coordinate distances of all reference energy consumption points of the current computing device operating parameters within a preset time period before the current moment, is the standard deviation of the reference distances of all reference energy consumption points of the current computing device operating parameters within a preset time period before the current moment, is the natural logarithm, and the value of the natural constant e is 2.718.

[0011] Preferably, the liquid compressed air backup system, the second computing module, comprises: The second acquisition submodule is used to obtain the liquid nitrogen production of each type of equipment at all times within a preset time period before the current time; The second calculation submodule is used to obtain the production impact of each type of equipment operating parameter of each type of equipment at the current moment based on the processing parameters and liquid nitrogen production of each type of equipment operating parameter at all moments in a preset time period before the current moment.

[0012] Preferably, in the liquid compressed air backup system, the second calculation submodule obtains the yield influence of each type of equipment operating parameter at the current moment based on the processing parameters and liquid nitrogen output of each type of equipment operating parameter at all moments in a preset time period before the current moment, including: in, is the yield impact of the current computing device operating parameters at the current moment, is the number of all moments in the preset time period before the current moment. is the value of the processing parameter of the current computing device operating parameter at the current moment, is the average value of the processing parameters of the current computing device operating parameters at all times within a preset time period before the current time. is the standard deviation of the numerical values ​​of the processing parameters of the current computing device operating parameters at all times within a preset time period before the current time, is the maximum value of the processing parameters of the current computing device operating parameters at all times within a preset time period before the current time. is the minimum value of the processing parameters of the current computing device operating parameters at all times within a preset time period before the current time. is the value of liquid nitrogen production of the current computing equipment at the current moment, It is the maximum value of the liquid nitrogen production of the current computing device at all times in the preset time period before the current moment. It is the minimum value of the liquid nitrogen production of the current computing device at all times in the preset time period before the current time. is the natural logarithm, and the value of the natural constant e is 2.718.

[0013] Preferably, the liquid compressed air backup system, building blocks, comprises: Constructing a submodule for obtaining an equipment analysis matrix for each type of equipment at the current moment based on the processing parameters, energy consumption impact and output impact of the operating parameters of all types of equipment at all moments in a preset time period before the current moment for each type of equipment; The second analysis submodule is used to delete the matrix elements of each column in the device analysis matrix of each type of equipment at the current moment in turn, obtain all new matrices of each type of equipment at the current moment, and use the new matrix with the largest matrix rank among all the new matrices of each type of equipment at the current moment as the control matrix of each type of equipment at the current moment, and use the processing parameters of the operating parameters of each type of equipment at the moment corresponding to the deleted column matrix elements of the control matrix of each type of equipment at the current moment as the control values ​​of the operating parameters of the corresponding type of equipment at the current moment.

[0014] Preferably, the liquid compressed air backup system, the construction submodule is based on the processing parameters, energy consumption impact and output impact of all types of equipment operating parameters of each type of equipment at all times within a preset time period before the current moment, and the method of obtaining the equipment analysis matrix of each type of equipment at the current moment includes: in, is the device analysis matrix of the current computing device at the current moment, is the value of the processing parameter of the observation device operating parameter of the current computing device at the first moment in the preset time period before the current moment, is the value of the processing parameter of the observation device operating parameter of the current computing device at the second moment within the preset time period before the current moment, The number of times the current computing device has been used in the preset time period before the current moment. The values ​​of the processing parameters of the observed equipment operating parameters at each moment, is the number of all moments in the preset time period before the current moment. is the energy consumption impact of the observed device operating parameters of the current computing device at the current moment, It is the yield impact of the observed device operating parameters of the current computing device at the current moment.

[0015] Preferably, in the liquid compressed air backup system, the control module obtains the best liquid compressed air backup result based on the control values ​​of the operating parameters of all types of equipment at the current moment, including: The operating parameters of each type of equipment at the next moment after the current moment are adjusted to be the same as the control values ​​of the operating parameters of the corresponding type of equipment at the current moment, so as to obtain the best liquid compressed air standby result.

[0016] The beneficial effects of the present invention compared with the prior art are as follows: according to the processing parameters and energy consumption values ​​of the operating parameters of all types of equipment of each type of equipment at all times within a preset time period before the current moment, the energy consumption influence of the operating parameters of all types of equipment of each type of equipment at the current moment is obtained, and the influence of the operating parameters of each type of equipment on the equipment energy consumption of each type of equipment at the current moment is accurately quantified; according to the processing parameters of the operating parameters of all types of equipment of each type of equipment at all times within the preset time period before the current moment and the liquid nitrogen output at all times within the preset time period before the current moment, the output influence of the operating parameters of all types of equipment of each type of equipment at the current moment is obtained, and the influence of the operating parameters of each type of equipment on the liquid nitrogen output of each type of equipment at the current moment is accurately quantified; and then according to the processing parameters of the operating parameters of all types of equipment of each type of equipment at all times within the preset time period before the current moment and the liquid nitrogen output at all times within the preset time period before the current moment, the output influence of the operating parameters of all types of equipment of each type of equipment at the current moment is obtained, and the influence of the operating parameters of each type of equipment at the current moment on the liquid nitrogen output is accurately quantified. The processing parameters of the operating parameters of all types of equipment at all times in the preset time period before the current moment and the energy consumption impact and output impact of all types of equipment operating parameters of each type of equipment at the current moment are combined to obtain the equipment analysis matrix of each type of equipment at the current moment, and based on the equipment analysis matrix of each type of equipment at the current moment, the control values ​​of all types of equipment operating parameters of each type of equipment at the current moment are accurately obtained, which is convenient for the subsequent acquisition of the best liquid compressed air standby result, and finally the best liquid compressed air standby result is obtained according to the control values ​​of all types of equipment operating parameters of all types of equipment at the current moment, which realizes the comprehensive consideration of energy consumption and liquid nitrogen output to achieve precise control of all equipment, achieve the best liquid compressed air standby result, and reduce the overall operating cost.

[0017] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structure specifically pointed out in the written application document.

[0018] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 This is a schematic diagram of a liquid compressed air backup system in an embodiment of the present invention; Figure 2 It is a specific schematic diagram of the processing module in an embodiment of the present invention. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0021] Embodiment 1: The present invention provides a liquid compressed air backup system, referring to Figure 1 ,include: A processing module, used to obtain processing parameters of the operating parameters of all types of equipment at each moment in a preset time period before the current moment based on the operating parameters of all types of equipment at each moment in a preset time period before the current moment; A first calculation module, configured to obtain the energy consumption impact of all types of device operating parameters of each type of device at the current moment based on the processing parameters and energy consumption values ​​of all types of device operating parameters of each type of device at all moments in a preset time period before the current moment; A second calculation module is used to obtain the production impact of all types of equipment operating parameters of each type of equipment at the current moment based on the processing parameters of all types of equipment operating parameters of each type of equipment at all times within a preset time period before the current moment and the liquid nitrogen production at all times within the preset time period before the current moment; A construction module is used to obtain an equipment analysis matrix for each type of equipment at the current moment based on the processing parameters of the operating parameters of all types of equipment at all moments in a preset time period before the current moment for each type of equipment and the energy consumption impact and output impact of the operating parameters of all types of equipment for each type of equipment at the current moment, and obtain the control values ​​of the operating parameters of all types of equipment for each type of equipment at the current moment based on the equipment analysis matrix for each type of equipment at the current moment; The control module is used to obtain the best liquid compressed air standby result based on the control values ​​of the operating parameters of all types of equipment at the current moment.

[0022] In this embodiment, all types of equipment are all related equipment of the liquid compressed air backup system for realizing high-efficiency liquid nitrogen preparation, including air compressors, coolers, distillation towers and liquefiers.

[0023] In this embodiment, the preset time period is a preset time period for obtaining operating parameters of all types of equipment, such as 60 minutes.

[0024] In this embodiment, each moment is a moment selected from a preset time period before the current moment, and the time length between each adjacent moment is the same, and the current moment is also a moment selected from a preset time period before the current moment.

[0025] In this embodiment, the processing parameters of the device operating parameters are parameters obtained based on the operating parameters of each type of device at all times within a preset time period before the current moment, and can truly reflect the operating status of the operating parameters of each type of device at each moment within the preset time period before the current moment.

[0026] In this embodiment, the energy consumption value is the value of the energy consumption of each type of equipment recorded at each moment in a preset time period before the current moment.

[0027] In this embodiment, the energy consumption impact degree is a numerical value obtained based on the processing parameters and energy consumption values ​​of the operating parameters of each type of equipment at all times in a preset time period before the current moment, which can characterize the degree of influence of each type of equipment operating parameters on the equipment energy consumption at the current moment.

[0028] In this embodiment, the liquid nitrogen output is the amount of liquid nitrogen produced by the liquid compressed air backup system at each moment in a preset time period before the current moment (within a unit time of 1s before each moment), and the unit of the liquid nitrogen output is m³.

[0029] In this embodiment, the production impact degree is a numerical value obtained based on the processing parameters of the operating parameters of each type of equipment at all times in the preset time period before the current moment and the liquid nitrogen production at all times in the preset time period before the current moment, which can characterize the degree of influence of the operating parameters of each type of equipment at the current moment on the liquid nitrogen production.

[0030] In this embodiment, the device analysis matrix of each type of device at the current moment is a matrix that can be used to analyze the control values ​​of the operating parameters of all types of devices of each type of device at the current moment.

[0031] In this embodiment, the control value of the equipment operating parameter is obtained based on the equipment analysis matrix of each type of equipment at the current moment, and is used to guide the control of the equipment operating parameters of each type of equipment after the current moment (i.e., the next moment) to achieve the expected operating state or performance.

[0032] In this embodiment, the optimal liquid compressed air standby result is to adjust the operating parameters of each type of equipment at the next moment after the current moment to the same as the control value of the operating parameters of the corresponding type of equipment at the current moment, so as to obtain the optimal liquid compressed air standby result at the next moment.

[0033] The beneficial effects of the above technology are as follows: according to the processing parameters and energy consumption values ​​of the operating parameters of all types of equipment of each type of equipment at all times in the preset time period before the current moment, the energy consumption influence of the operating parameters of all types of equipment of each type of equipment at the current moment is obtained, and the influence of the operating parameters of each type of equipment of each type of equipment at the current moment on the energy consumption of the equipment is accurately quantified; according to the processing parameters of the operating parameters of all types of equipment of each type of equipment at all times in the preset time period before the current moment and the liquid nitrogen output at all times in the preset time period before the current moment, the output influence of the operating parameters of all types of equipment of each type of equipment at the current moment is obtained, and the influence of the operating parameters of each type of equipment of each type of equipment at the current moment on the liquid nitrogen output is accurately quantified; and then according to the processing parameters of the operating parameters of all types of equipment of each type of equipment at all times in the preset time period before the current moment and the liquid nitrogen output at all times in the preset time period before the current moment, the output influence of the operating parameters of all types of equipment of each type of equipment at the current moment is obtained, and the influence of the operating parameters of each type of equipment of each type of equipment at the current moment on the liquid nitrogen output is accurately quantified. The processing parameters of the operating parameters of all types of equipment at all times in the preset time period before the moment and the energy consumption impact and output impact of all types of equipment operating parameters of each type of equipment at the current moment are combined to obtain the equipment analysis matrix of each type of equipment at the current moment, and based on the equipment analysis matrix of each type of equipment at the current moment, the control values ​​of all types of equipment operating parameters of each type of equipment at the current moment are accurately obtained, which is convenient for the subsequent acquisition of the best liquid compressed air standby result, and finally the best liquid compressed air standby result is obtained based on the control values ​​of all types of equipment operating parameters of all types of equipment at the current moment, which realizes the comprehensive consideration of energy consumption and liquid nitrogen output to achieve precise control of all equipment, achieve the best liquid compressed air standby result, and reduce the overall operating cost.

[0034] Embodiment 2: Based on Example 1, the liquid compressed air backup system, the processing module, reference Figure 2 ,include: The first acquisition submodule is used to obtain the operating parameters of all types of equipment at each moment in a preset time period before the current moment, wherein all types of equipment include air compressors, coolers, distillation towers and liquefiers, and the operating parameters of all types of equipment of the air compressor include output pressure and rotation speed, the operating parameters of all types of equipment of the cooler include cooling temperature and cooling medium flow rate, the operating parameters of all types of equipment of the distillation tower include operating pressure and reflux ratio, and the operating parameters of all types of equipment of the liquefier include liquefaction pressure and refrigeration capacity; The processing submodule is used to obtain processing parameters of the operating parameters of all types of equipment for each type of equipment at each moment in a preset time period before the current moment based on the operating parameters of all types of equipment for each type of equipment at all moments in a preset time period before the current moment.

[0035] In this embodiment, the air compressor is a special device that is driven by an electric motor, a diesel engine or other power machinery and increases the gas pressure or transports the gas by compressing air.

[0036] In this embodiment, the cooler is a heat exchange device that uses water or air as a coolant to remove heat.

[0037] In this embodiment, the distillation tower is a device for separating the mixture by utilizing the property that the components in the mixture have different volatilities, that is, the vapor pressures of the components are different at the same temperature.

[0038] In this embodiment, the liquefier is a machine that turns gas into liquid.

[0039] In this embodiment, the output pressure is the pressure value reached by the air compressor after compressing the air during operation, and the unit of the output pressure is Pa.

[0040] In this embodiment, the rotation speed is the number of revolutions per minute of the main shaft or crankshaft of the air compressor, and the unit of the rotation speed is “revolutions per minute” (r / min).

[0041] In this embodiment, the cooling temperature is the temperature reached by the cooling medium after the cooler transfers heat from the cooled medium to the cooling medium through heat exchange during operation, and the unit of the cooling temperature is degrees Celsius.

[0042] In this embodiment, the cooling medium flow rate is the volume of the cooling medium passing through the cooler per unit time, and the unit of the cooling medium flow rate is cubic meter per hour (m³ / h).

[0043] In this embodiment, the operating pressure is the pressure difference between the top and the bottom of the distillation tower, and the unit of the operating pressure is Pa.

[0044] In this embodiment, the reflux ratio is the ratio of the amount of liquid flowing down the distillation tower to the amount of liquid distilled from the top of the tower.

[0045] In this embodiment, the liquefaction pressure is the pressure required when the gas is compressed to a sufficiently low temperature to be converted into a liquid state during the liquefaction process, and the unit of the liquefaction pressure is Pa.

[0046] In this embodiment, the refrigeration capacity is the amount of heat absorbed by the liquefier from the cooling medium (such as gas) per unit time, and the unit of the refrigeration capacity is kilowatt (kw).

[0047] The beneficial effects of the above technology are: clarifying the specific parameter items of the operating parameters of all types of equipment and all types of equipment of each type of equipment, so as to facilitate the subsequent acquisition of the processing parameters of the operating parameters of all types of equipment of each type of equipment at each moment in the preset time period before the current moment based on the operating parameters of all types of equipment of each type of equipment at all moments in the preset time period before the current moment.

[0048] Embodiment 3: Based on Example 2, the liquid compressed air backup system, the processing submodule, includes: The first processing unit is used to determine whether the difference between the operation parameters of each type of equipment at each moment in the preset time period before the current moment and the operation parameters of the corresponding type of equipment at all adjacent moments of the corresponding moment is greater than the preset difference between the operation parameters of the corresponding type of equipment; if so, the average of the operation parameters of the corresponding type of equipment at all adjacent moments of the corresponding moment is used as the processing parameter of the operation parameters of the corresponding type of equipment at the corresponding moment; otherwise, the operation parameters of the corresponding type of equipment at the corresponding moment are used as the processing parameter of the operation parameters of the corresponding type of equipment at the corresponding moment; and when the difference between the operation parameters of each type of equipment at each moment in the preset time period before the current moment and the operation parameters of the corresponding type of equipment at only one adjacent moment of the corresponding moment is greater than the preset difference between the operation parameters of the corresponding type of equipment, the corresponding moment is used as the transition moment of the operation parameters of the corresponding type of equipment within the preset time period before the current moment; The second processing unit is used to take the corresponding type of device operating parameters with the most transition times among all type of device operating parameters of each type of device in a preset time period before the current moment as the observed device operating parameters of the corresponding type of device.

[0049] In this embodiment, the preset difference is a preset difference threshold for obtaining the processing parameter of each type of device operating parameter of each type of device at each moment in a preset time period before the current moment, and each type of device operating parameter of each type of device corresponds to a preset difference separately.

[0050] The beneficial effects of the above technology are: a specific method for obtaining the processing parameters of the operating parameters of all types of equipment for each type of equipment at each moment in the preset time period before the current moment based on the operating parameters of all types of equipment for each type of equipment at all moments in the preset time period before the current moment is given in detail, and a method for determining the transition moment of the operating parameters of all types of equipment for each type of equipment in the preset time period before the current moment is clarified, thereby determining the observed device operating parameters of each type of equipment, which is convenient for the construction of the subsequent equipment analysis matrix.

[0051] Embodiment 4: On the basis of Example 1, the liquid compressed air backup system, the first calculation module, includes: A first analysis submodule is used to use the numerical values ​​of the processing parameters of the operating parameters of each type of equipment at all moments within a preset time period before the current moment as the horizontal coordinate value, and the energy consumption value of the corresponding type of equipment at the corresponding moment as the vertical coordinate value, to obtain all energy consumption points of the operating parameters of each type of equipment within the preset time period before the current moment, and use the energy consumption point corresponding to the current moment among all the energy consumption points of the operating parameters of each type of equipment within the preset time period before the current moment as the observed energy consumption point of the operating parameters of the corresponding type of equipment of the corresponding type of equipment within the preset time period before the current moment, and use the remaining energy consumption points among all the energy consumption points of the operating parameters of each type of equipment within the preset time period before the current moment, except for the observed energy consumption points of the operating parameters of the corresponding type of equipment of the corresponding type of equipment within the preset time period before the current moment, as the reference energy consumption points of the operating parameters of the corresponding type of equipment of the corresponding type of equipment within the preset time period before the current moment; The first calculation submodule is used to obtain the energy consumption impact of each type of equipment operating parameter at the current moment based on all reference energy consumption points and observed energy consumption points of each type of equipment operating parameter within a preset time period before the current moment.

[0052] The beneficial effects of the above technology are: based on the processing parameters and energy consumption values ​​of the operating parameters of each type of equipment at all moments within the preset time period before the current moment, all reference energy consumption points and observed energy consumption points of the operating parameters of each type of equipment within the preset time period before the current moment are obtained, and then the energy consumption impact of each type of equipment operating parameters of each type of equipment at the current moment is obtained. This embodiment gives in detail a specific method for determining all reference energy consumption points and observed energy consumption points of the operating parameters of each type of equipment within the preset time period before the current moment.

[0053] Embodiment 5: On the basis of Embodiment 4, the liquid compressed air backup system, the first computing submodule, includes: A first analysis unit is used to regard the distance between each reference energy consumption point of each type of equipment operation parameter of each type of equipment in a preset time period before the current moment and the coordinate origin as the coordinate distance of the corresponding reference energy consumption point of the corresponding type of equipment operation parameter of the corresponding type of equipment in the preset time period before the current moment, and regard the distance between the observed energy consumption point of each type of equipment operation parameter of each type of equipment in the preset time period before the current moment and the coordinate origin as the coordinate distance of the observed energy consumption point of the corresponding type of equipment operation parameter of the corresponding type of equipment in the preset time period before the current moment; A second analysis unit is used to regard the distance between each reference energy consumption point of each type of equipment operation parameter of each type of equipment in a preset time period before the current moment and the observed energy consumption point of the corresponding type of equipment operation parameter of the corresponding type of equipment in the preset time period before the current moment as the reference distance of the corresponding reference energy consumption point of the corresponding type of equipment operation parameter of the corresponding type of equipment in the preset time period before the current moment, and regard the quotient value of the coordinate distance and the reference distance of each reference energy consumption point of each type of equipment operation parameter of each type of equipment in the preset time period before the current moment as the reference quotient value of the corresponding reference energy consumption point of the corresponding type of equipment operation parameter of the corresponding type of equipment in the preset time period before the current moment; The calculation unit is used to obtain the energy consumption impact of each type of equipment operating parameter of each type of equipment at the current moment based on the coordinate distance, reference distance and reference quotient value of all reference energy consumption points of each type of equipment operating parameter within a preset time period before the current moment, that is: in, is the energy consumption impact of the current computing device operating parameters at the current moment, is the number of reference energy consumption points of the operating parameters of the current computing device within a preset time period before the current moment, is the coordinate distance of the observed energy consumption point of the current computing device operation parameter within a preset time period before the current moment, is the sum of the coordinate distances of all reference energy consumption points of the current computing device operation parameters within a preset time period before the current moment, is the sum of the reference quotient values ​​of all reference energy consumption points of the current computing device operating parameters within a preset time period before the current moment, is the standard deviation of the coordinate distances of all reference energy consumption points of the current computing device operating parameters within a preset time period before the current moment, is the standard deviation of the reference distances of all reference energy consumption points of the current computing device operating parameters within a preset time period before the current moment, is the natural logarithm, and the value of the natural constant e is 2.718.

[0054] The beneficial effects of the above technology are: a specific method is provided to determine the coordinate distance, reference distance and reference quotient value of all reference energy consumption points of each type of equipment operating parameters within a preset time period before the current moment, thereby achieving accurate quantification of the influence of each type of equipment operating parameters on equipment energy consumption at the current moment, and facilitating the construction of subsequent equipment analysis matrix.

[0055] Embodiment 6: On the basis of Embodiment 1, the liquid compressed air backup system, the second computing module, comprises: The second acquisition submodule is used to obtain the liquid nitrogen production of each type of equipment at all times within a preset time period before the current time; The second calculation submodule is used to obtain the production impact of each type of equipment operating parameter of each type of equipment at the current moment based on the processing parameters and liquid nitrogen production of each type of equipment operating parameter at all moments in a preset time period before the current moment.

[0056] The beneficial effect of the above technology is as follows: according to the processing parameters of the operating parameters of all types of equipment at all times in the preset time period before the current moment and the liquid nitrogen production at all times in the preset time period before the current moment, the production influence of all types of equipment operating parameters of each type of equipment at the current moment is obtained, and the influence of each type of equipment operating parameters of each type of equipment at the current moment on the liquid nitrogen production is accurately quantified, which is convenient for the construction of the subsequent equipment analysis matrix.

[0057] Embodiment 7: On the basis of Example 6, the liquid compressed air backup system, the second calculation submodule obtains the yield influence of each type of equipment operating parameter at the current moment based on the processing parameters and liquid nitrogen output of each type of equipment operating parameter at all moments in a preset time period before the current moment, including: in, is the yield impact of the current computing device operating parameters at the current moment, is the number of all moments in the preset time period before the current moment. is the value of the processing parameter of the current computing device operating parameter at the current moment, is the average value of the processing parameters of the current computing device operating parameters at all times within a preset time period before the current time. is the standard deviation of the numerical values ​​of the processing parameters of the current computing device operating parameters at all times within a preset time period before the current time, is the maximum value of the processing parameters of the current computing device operating parameters at all times within a preset time period before the current time. is the minimum value of the processing parameters of the current computing device operating parameters at all times within a preset time period before the current time. is the value of liquid nitrogen production of the current computing equipment at the current moment, It is the maximum value of the liquid nitrogen production of the current computing device at all times in the preset time period before the current moment. It is the minimum value of the liquid nitrogen production of the current computing device at all times in the preset time period before the current time. is the natural logarithm, and the value of the natural constant e is 2.718.

[0058] The beneficial effect of the above technology is: a specific method is given in detail to obtain the production influence of each type of equipment operating parameters at the current moment according to the processing parameters and liquid nitrogen production of each type of equipment operating parameters at all moments in a preset time period before the current moment.

[0059] Embodiment 8: On the basis of Example 3, the liquid compressed air backup system, building module, includes: Constructing a submodule for obtaining an equipment analysis matrix for each type of equipment at the current moment based on the processing parameters, energy consumption impact and output impact of the operating parameters of all types of equipment at all moments in a preset time period before the current moment for each type of equipment; The second analysis submodule is used to delete the matrix elements of each column in the device analysis matrix of each type of equipment at the current moment in turn, obtain all new matrices of each type of equipment at the current moment, and use the new matrix with the largest matrix rank among all the new matrices of each type of equipment at the current moment as the control matrix of each type of equipment at the current moment, and use the processing parameters of the operating parameters of each type of equipment at the moment corresponding to the deleted column matrix elements of the control matrix of each type of equipment at the current moment as the control values ​​of the operating parameters of the corresponding type of equipment at the current moment.

[0060] In this embodiment, sequential deletion is a process of deleting only one column of matrix elements in the device analysis matrix of each type of device at the current moment each time.

[0061] In this embodiment, the control matrix of each type of equipment at the current moment is a new matrix with the largest matrix rank among all new matrices of each type of equipment at the current moment, and when there are multiple new matrices with the largest matrix rank, the new matrix corresponding to the moment of the deleted column matrix elements in the multiple new matrices closest to the current moment is used as the control matrix of each type of equipment at the current moment.

[0062] The beneficial effects of the above technology are: based on the equipment analysis matrix of each type of equipment at the current moment, the control matrix of each type of equipment at the current moment is obtained, and then based on the control matrix of each type of equipment at the current moment, the control value of each type of equipment operating parameter of each type of equipment at the current moment is obtained, which facilitates the subsequent acquisition of the optimal liquid compressed air backup result.

[0063] Embodiment 9: On the basis of Example 8, the liquid compressed air backup system constructs a submodule based on the processing parameters, energy consumption impact and output impact of the operating parameters of all types of equipment at all times within a preset time period before the current moment, and obtains a method for the equipment analysis matrix of each type of equipment at the current moment, including: in, is the device analysis matrix of the current computing device at the current moment, is the value of the processing parameter of the observation device operating parameter of the current computing device at the first moment in the preset time period before the current moment, is the value of the processing parameter of the observation device operating parameter of the current computing device at the second moment within the preset time period before the current moment, The number of times the current computing device has been used in the preset time period before the current moment. The values ​​of the processing parameters of the observed equipment operating parameters at each moment, is the number of all moments in the preset time period before the current moment. is the energy consumption impact of the observed device operating parameters of the current computing device at the current moment, It is the yield impact of the observed device operating parameters of the current computing device at the current moment.

[0064] The beneficial effect of the above technology is: a specific method is given in detail to construct an equipment analysis matrix for each type of equipment at the current moment based on the processing parameters, energy consumption impact and output impact of the operating parameters of all types of equipment at all moments in a preset time period before the current moment.

[0065] Embodiment 10: On the basis of Example 1, the liquid compressed air backup system, the control module, based on the control values ​​of the operating parameters of all types of equipment at the current moment, obtains the best liquid compressed air backup result, including: The operating parameters of each type of equipment at the next moment after the current moment are adjusted to be the same as the control values ​​of the operating parameters of the corresponding type of equipment at the current moment, so as to obtain the best liquid compressed air standby result.

[0066] In this embodiment, the next moment is the next moment of the current moment, and the time interval between the current moment and the next moment is the same as the time interval between two adjacent moments in a preset time period before the current moment.

[0067] The beneficial effects of the above technology are: according to the control values ​​of the operating parameters of all types of equipment at the current moment, the best liquid compressed air standby result is obtained, and the comprehensive consideration of energy consumption and liquid nitrogen production is achieved to achieve precise control of all equipment, achieve the best liquid compressed air standby result, and reduce overall operating costs.

[0068] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention, and the present invention is also intended to include these changes and modifications.

Claims

1. A liquid compressed air backup system, characterized in that: include: A processing module, used to obtain processing parameters of the operating parameters of all types of equipment at each moment in a preset time period before the current moment based on the operating parameters of all types of equipment at each moment in a preset time period before the current moment; A first calculation module, configured to obtain the energy consumption impact of all types of device operating parameters of each type of device at the current moment based on the processing parameters and energy consumption values ​​of all types of device operating parameters of each type of device at all moments in a preset time period before the current moment; A second calculation module is used to obtain the production impact of all types of equipment operating parameters of each type of equipment at the current moment based on the processing parameters of all types of equipment operating parameters of each type of equipment at all times within a preset time period before the current moment and the liquid nitrogen production at all times within the preset time period before the current moment; A construction module is used to obtain an equipment analysis matrix for each type of equipment at the current moment based on the processing parameters of the operating parameters of all types of equipment at all moments in a preset time period before the current moment for each type of equipment and the energy consumption impact and output impact of the operating parameters of all types of equipment for each type of equipment at the current moment, and obtain the control values ​​of the operating parameters of all types of equipment for each type of equipment at the current moment based on the equipment analysis matrix for each type of equipment at the current moment; The control module is used to obtain the best liquid compressed air standby result based on the control values ​​of the operating parameters of all types of equipment at the current moment.

2. The liquid compressed air backup system according to claim 1, characterized in that: Processing modules, including: The first acquisition submodule is used to obtain the operating parameters of all types of equipment at each moment in a preset time period before the current moment, wherein all types of equipment include air compressors, coolers, distillation towers and liquefiers, and the operating parameters of all types of equipment of the air compressor include output pressure and rotation speed, the operating parameters of all types of equipment of the cooler include cooling temperature and cooling medium flow rate, the operating parameters of all types of equipment of the distillation tower include operating pressure and reflux ratio, and the operating parameters of all types of equipment of the liquefier include liquefaction pressure and refrigeration capacity; The processing submodule is used to obtain processing parameters of the operating parameters of all types of equipment for each type of equipment at each moment in a preset time period before the current moment based on the operating parameters of all types of equipment for each type of equipment at all moments in a preset time period before the current moment.

3. The liquid compressed air backup system according to claim 2, characterized in that: Processing submodules, including: The first processing unit is used to determine whether the difference between the operation parameters of each type of equipment at each moment in the preset time period before the current moment and the operation parameters of the corresponding type of equipment at all adjacent moments of the corresponding moment is greater than the preset difference between the operation parameters of the corresponding type of equipment; if so, the average of the operation parameters of the corresponding type of equipment at all adjacent moments of the corresponding moment is used as the processing parameter of the operation parameters of the corresponding type of equipment at the corresponding moment; otherwise, the operation parameters of the corresponding type of equipment at the corresponding moment are used as the processing parameter of the operation parameters of the corresponding type of equipment at the corresponding moment; and when the difference between the operation parameters of each type of equipment at each moment in the preset time period before the current moment and the operation parameters of the corresponding type of equipment at only one adjacent moment of the corresponding moment is greater than the preset difference between the operation parameters of the corresponding type of equipment, the corresponding moment is used as the transition moment of the operation parameters of the corresponding type of equipment within the preset time period before the current moment; The second processing unit is used to take the corresponding type of device operating parameters with the most transition times among all type of device operating parameters of each type of device in a preset time period before the current moment as the observed device operating parameters of the corresponding type of device.

4. The liquid compressed air backup system according to claim 1, characterized in that: The first computing module includes: A first analysis submodule is used to use the numerical values ​​of the processing parameters of the operating parameters of each type of equipment at all moments within a preset time period before the current moment as the horizontal coordinate value, and the energy consumption value of the corresponding type of equipment at the corresponding moment as the vertical coordinate value, to obtain all energy consumption points of the operating parameters of each type of equipment within the preset time period before the current moment, and use the energy consumption point corresponding to the current moment among all the energy consumption points of the operating parameters of each type of equipment within the preset time period before the current moment as the observed energy consumption point of the operating parameters of the corresponding type of equipment of the corresponding type of equipment within the preset time period before the current moment, and use the remaining energy consumption points among all the energy consumption points of the operating parameters of each type of equipment within the preset time period before the current moment, except for the observed energy consumption points of the operating parameters of the corresponding type of equipment of the corresponding type of equipment within the preset time period before the current moment, as the reference energy consumption points of the operating parameters of the corresponding type of equipment of the corresponding type of equipment within the preset time period before the current moment; The first calculation submodule is used to obtain the energy consumption impact of each type of equipment operating parameter at the current moment based on all reference energy consumption points and observed energy consumption points of each type of equipment operating parameter within a preset time period before the current moment.

5. The liquid compressed air backup system according to claim 4, characterized in that: The first computing submodule includes: A first analysis unit is used to regard the distance between each reference energy consumption point of each type of equipment operation parameter of each type of equipment in a preset time period before the current moment and the coordinate origin as the coordinate distance of the corresponding reference energy consumption point of the corresponding type of equipment operation parameter of the corresponding type of equipment in the preset time period before the current moment, and regard the distance between the observed energy consumption point of each type of equipment operation parameter of each type of equipment in the preset time period before the current moment and the coordinate origin as the coordinate distance of the observed energy consumption point of the corresponding type of equipment operation parameter of the corresponding type of equipment in the preset time period before the current moment; A second analysis unit is used to regard the distance between each reference energy consumption point of each type of equipment operation parameter of each type of equipment in a preset time period before the current moment and the observed energy consumption point of the corresponding type of equipment operation parameter of the corresponding type of equipment in the preset time period before the current moment as the reference distance of the corresponding reference energy consumption point of the corresponding type of equipment operation parameter of the corresponding type of equipment in the preset time period before the current moment, and regard the quotient value of the coordinate distance and the reference distance of each reference energy consumption point of each type of equipment operation parameter of each type of equipment in the preset time period before the current moment as the reference quotient value of the corresponding reference energy consumption point of the corresponding type of equipment operation parameter of the corresponding type of equipment in the preset time period before the current moment; The calculation unit is used to obtain the energy consumption impact of each type of equipment operating parameter of each type of equipment at the current moment based on the coordinate distance, reference distance and reference quotient value of all reference energy consumption points of each type of equipment operating parameter within a preset time period before the current moment, that is: in, is the energy consumption impact of the current computing device operating parameters at the current moment, is the number of reference energy consumption points of the operating parameters of the current computing device within a preset time period before the current moment, is the coordinate distance of the observed energy consumption point of the current computing device operation parameter within a preset time period before the current moment, is the sum of the coordinate distances of all reference energy consumption points of the current computing device operation parameters within a preset time period before the current moment, is the sum of the reference quotient values ​​of all reference energy consumption points of the current computing device operating parameters within a preset time period before the current moment, is the standard deviation of the coordinate distances of all reference energy consumption points of the current computing device operating parameters within a preset time period before the current moment, is the standard deviation of the reference distances of all reference energy consumption points of the current computing device operating parameters within a preset time period before the current moment, is the natural logarithm, and the value of the natural constant e is 2.

718.

6. The liquid compressed air backup system according to claim 1, characterized in that: The second computing module includes: The second acquisition submodule is used to obtain the liquid nitrogen production of each type of equipment at all times within a preset time period before the current time; The second calculation submodule is used to obtain the production impact of each type of equipment operating parameter of each type of equipment at the current moment based on the processing parameters and liquid nitrogen production of each type of equipment operating parameter at all moments in a preset time period before the current moment.

7. The liquid compressed air backup system according to claim 6, characterized in that: The second calculation submodule obtains the yield influence of each type of equipment operating parameter at the current moment based on the processing parameters and liquid nitrogen output of each type of equipment operating parameter at all moments in a preset time period before the current moment, including: in, is the yield impact of the current computing device operating parameters at the current moment, is the number of all moments in the preset time period before the current moment. is the value of the processing parameter of the current computing device operating parameter at the current moment, is the average value of the processing parameters of the current computing device operating parameters at all times within a preset time period before the current time. is the standard deviation of the numerical values ​​of the processing parameters of the current computing device operating parameters at all times within a preset time period before the current time, is the maximum value of the processing parameters of the current computing device operating parameters at all times within a preset time period before the current time. is the minimum value of the processing parameters of the current computing device operating parameters at all times within a preset time period before the current time. is the value of liquid nitrogen production of the current computing equipment at the current moment, It is the maximum value of the liquid nitrogen production of the current computing device at all times in the preset time period before the current moment. It is the minimum value of the liquid nitrogen production of the current computing device at all times in the preset time period before the current time. is the natural logarithm, and the value of the natural constant e is 2.

718.

8. The liquid compressed air backup system according to claim 3, characterized in that: Building blocks, including: Constructing a submodule for obtaining an equipment analysis matrix for each type of equipment at the current moment based on the processing parameters, energy consumption impact and output impact of the operating parameters of all types of equipment at all moments in a preset time period before the current moment for each type of equipment; The second analysis submodule is used to delete the matrix elements of each column in the device analysis matrix of each type of equipment at the current moment in turn, obtain all new matrices of each type of equipment at the current moment, and use the new matrix with the largest matrix rank among all the new matrices of each type of equipment at the current moment as the control matrix of each type of equipment at the current moment, and use the processing parameters of the operating parameters of each type of equipment at the moment corresponding to the deleted column matrix elements of the control matrix of each type of equipment at the current moment as the control values ​​of the operating parameters of the corresponding type of equipment at the current moment.

9. The liquid compressed air backup system according to claim 8, characterized in that: The construction submodule obtains a method for obtaining an equipment analysis matrix of each type of equipment at the current moment based on the processing parameters, energy consumption impact and output impact of the operating parameters of all types of equipment at all times within a preset time period before the current moment, including: in, is the device analysis matrix of the current computing device at the current moment, is the value of the processing parameter of the observation device operating parameter of the current computing device at the first moment in the preset time period before the current moment, is the value of the processing parameter of the observation device operating parameter of the current computing device at the second moment within the preset time period before the current moment, The number of times the current computing device has been used in the preset time period before the current moment. The values ​​of the processing parameters of the observed equipment operating parameters at each moment, is the number of all moments in the preset time period before the current moment. is the energy consumption impact of the observed device operating parameters of the current computing device at the current moment, It is the yield impact of the observed device operating parameters of the current computing device at the current moment.

10. The liquid compressed air backup system according to claim 1, characterized in that: The control module obtains the best liquid compressed air standby result based on the control values ​​of the operating parameters of all types of equipment at the current moment, including: The operating parameters of each type of equipment at the next moment after the current moment are adjusted to be the same as the control values ​​of the operating parameters of the corresponding type of equipment at the current moment, so as to obtain the best liquid compressed air standby result.

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