Ventilation system model generation method and device and nonvolatile storage medium

Abstract

The invention discloses a ventilation system model generation method and device and a nonvolatile storage medium. The method comprises the steps that multiple total cooling load values, in one-to-one correspondence with multiple time periods, of a target structure are obtained, and the multiple total cooling load values are heat values needing to be dissipated in the cooling process of equipment; according to the multiple total cooling load values, multiple ventilation quantity requirements, in one-to-one correspondence to the multiple time periods, of the target structure are determined; according to the multiple ventilation quantity requirements, the size of a ventilation opening and a ventilation equipment combination mode are determined; and according to the size of the ventilation opening and the ventilation equipment combination mode, integrating a plurality of ventilation equipment models, and generating a ventilation system model of the target structure. The technical problem that in the prior art, a ventilation system of the main transformer room cannot be designed according to the actual ventilation quantity requirement of the main transformer room is solved.

Description

Technical Field

[0001] The present invention relates to the field of energy-saving operation of ventilation systems, and in particular to a ventilation system model generation method, device, and non-volatile storage medium. Background Art

[0002] As a functional room for placing the main transformer, the main transformer room needs a ventilation system to maintain indoor temperature and humidity due to limited space and poor heat dissipation effect, so as to meet the environmental requirements for safe and stable operation of the main transformer. The energy consumption of indoor substation ventilation is the main component of station energy consumption. The conventional ventilation design of the main transformer room generally determines the design parameters such as temperature and humidity according to the design specifications, and calculates the ventilation volume based on these parameters. The heat dissipation of the equipment in the conventional design adopts the fixed value provided by the electrical profession, while the actual equipment heat dissipation, especially the heat dissipation of the transformer, will change with the change of the transformer load rate. The heat dissipation of the external protective structure will also be affected by the climatic conditions of the area. The ventilation load and energy consumption of the substation building show dynamic change characteristics. These dynamic change factors were not taken into account when designing the ventilation system of the main transformer room. Therefore, during the actual operation of the ventilation system of the main transformer room, the ventilation system may have excessive air volume, resulting in energy waste.

[0003] To address the above-mentioned problems, no effective solution has been proposed yet. Summary of the invention

[0004] The embodiments of the present invention provide a ventilation system model generation method, device, and non-volatile storage medium to at least solve the technical problem in the prior art that the main transformer room ventilation system cannot be designed according to the actual ventilation volume demand of the main transformer room.

[0005] According to one aspect of an embodiment of the present invention, a method for generating a ventilation system model is provided, including: obtaining a plurality of total cooling load values ​​corresponding to a target structure in a plurality of time periods, wherein the plurality of total cooling load values ​​are heat values ​​that the equipment needs to dissipate during a cooling process; determining a plurality of ventilation volume requirements corresponding to the target structure in a plurality of time periods according to the plurality of total cooling load values; determining the size of the vents and the combination of ventilation equipment according to the plurality of ventilation volume requirements; and integrating a plurality of ventilation equipment models according to the size of the vents and the combination of ventilation equipment to generate a ventilation system model of the target structure.

[0006] Optionally, obtaining a plurality of total cooling load values ​​corresponding to the target structure in a plurality of time periods includes: obtaining a plurality of first cooling load values ​​of the target structure in the plurality of time periods, and a plurality of second cooling load values ​​of equipment arranged in the target structure in the plurality of time periods; and determining a plurality of total cooling load values ​​according to the plurality of first cooling load values ​​and the plurality of second cooling load values.

[0007] Optionally, determining a plurality of total cooling load values ​​according to a plurality of first cooling load values ​​and a plurality of second cooling load values ​​includes: determining a negative value of each of the plurality of first cooling load values; comparing the negative value of each of the plurality of first cooling load values ​​with the second cooling load value in a corresponding time period to obtain a plurality of comparison results; and processing the plurality of first cooling load values ​​and the plurality of second cooling load values ​​based on the plurality of comparison results to determine a plurality of total cooling load values.

[0008] Optionally, determining multiple ventilation volume requirements of the target structure corresponding to multiple time periods in a one-to-one manner according to multiple total cooling load values ​​includes: obtaining multiple temperature difference values ​​corresponding to the multiple time periods in a one-to-one manner, wherein the multiple temperature difference values ​​are differences between the internal and external temperatures of the target structure;

[0009] Optionally, the size of the vent and the combination of ventilation equipment are determined according to multiple ventilation volume requirements, including: determining the maximum ventilation volume requirement according to multiple ventilation volume requirements; determining the combination of ventilation equipment according to the maximum ventilation volume requirement; determining the size of the vent according to the combination of ventilation equipment.

[0010] Optionally, a combination of ventilation equipment is determined based on a maximum ventilation volume demand, including: selecting a target ventilation volume demand that is closest to a predetermined threshold among multiple ventilation volume demands; determining a first ventilation equipment whose ventilation volume meets the target ventilation volume demand; determining an unmet ventilation volume demand based on the maximum ventilation volume demand and the target ventilation volume demand; determining a second ventilation equipment whose ventilation volume meets the unmet ventilation volume demand; and combining the first ventilation equipment and the second ventilation equipment to determine a combination of the ventilation equipment.

[0011] According to another aspect of an embodiment of the present invention, a ventilation system generating device is provided, including: a first acquisition module, used to obtain a plurality of total cooling load values ​​corresponding to a target structure in a plurality of time periods, wherein the plurality of total cooling load values ​​are heat values ​​that the equipment needs to dissipate during a cooling process; a first determination module, used to determine a plurality of ventilation volume requirements corresponding to the target structure in a plurality of time periods according to the plurality of total cooling load values; a second determination module, used to determine the size of the vents and the combination of ventilation equipment according to the plurality of ventilation volume requirements; an integration module, used to integrate a plurality of ventilation equipment models according to the size of the vents and the combination of ventilation equipment to generate a ventilation system model of the target structure.

[0012] According to another aspect of an embodiment of the present invention, a non-volatile storage medium is provided. The non-volatile storage medium stores a plurality of instructions, and the instructions are suitable for being loaded by a processor and executing any one of the ventilation system model generation methods.

[0013] According to another aspect of an embodiment of the present invention, there is provided an electronic device, comprising: one or more processors and a memory, the memory being used to store one or more programs, wherein when the one or more programs are executed by the one or more processors, the one or more processors implement any one of the ventilation system model generation methods.

[0014] According to yet another aspect of the embodiments of the present invention, a computer program product is provided, including a computer program, and when the computer program is executed by a processor, any one of the above ventilation system model generation methods is implemented.

[0015] In an embodiment of the present invention, multiple total cooling load values ​​corresponding to the target structure in multiple time periods are obtained, wherein the multiple total cooling load values ​​are the heat values ​​that the equipment needs to dissipate during the cooling process; multiple ventilation volume requirements corresponding to the target structure in multiple time periods are determined according to the multiple total cooling load values; the size of the vents and the combination of ventilation equipment are determined according to the multiple ventilation volume requirements; according to the size of the vents and the combination of ventilation equipment, multiple ventilation equipment models are integrated to generate a ventilation system model of the target structure. The technical problem that the ventilation system of the main transformer room cannot be designed according to the actual ventilation volume requirements of the main transformer room in the prior art is solved, and the purpose of demand-oriented design of the ventilation system of the main transformer room is achieved, thereby achieving the technical effect of low-carbon and high-efficiency operation of the ventilation system of the main transformer room. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 is a flow chart of a ventilation system model generation method provided according to an embodiment of the present invention;

[0018] Figure 2 is a schematic diagram of an optional ventilation volume demand distribution provided according to an embodiment of the present invention;

[0019] Figure 3 is a schematic diagram of a ventilation system generating device provided according to an embodiment of the present invention;

[0020] Figure 4 is a schematic diagram of an electronic device provided according to an embodiment of the present invention. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0022] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0023] For the convenience of description, some nouns or terms involved in the embodiments of the present application are explained below:

[0024] The enclosure structure of the main transformer room refers to the building structure used to surround and protect the main transformer in the substation. The main transformer room is the area in the substation where the main transformer is placed. It is usually composed of walls, roofs and floors. Its main function is to prevent external objects and the environment from damaging the main transformer. It also plays a role in fire prevention, theft prevention, and lightning protection. The enclosure structure of the main transformer room is generally designed and constructed using fire prevention, lightning protection, explosion protection and other materials and technologies to ensure that the main transformer operates in a safe and stable environment.

[0025] The internal equipment of the main transformer room usually refers to various electrical equipment and components in the main transformer room, including but not limited to the main transformer, disconnector, circuit breaker, capacitor, reactor, overvoltage protection device, overcurrent protection device, temperature monitoring device, etc. These devices are used to control, protect and monitor the operating status of the main transformer to ensure the safe and stable operation of the power system.

[0026] According to an embodiment of the present invention, a method embodiment of generating a ventilation system is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0027] Figure 1is a flow chart of a method for generating a ventilation system model according to an embodiment of the present invention. Figure 1 As shown, the method comprises the following steps:

[0028] Step S102, obtaining a plurality of total cooling load values ​​corresponding to the target structure in a plurality of time periods, wherein the plurality of total cooling load values ​​are heat values ​​that the equipment needs to dissipate during the cooling process;

[0029] In this step, the target structure refers to the main transformer room. The cooling load value corresponding to the heat generated in the predetermined time period of the main transformer room is accumulated according to the predetermined unit to obtain the total cooling load value of each time period. Assuming that the predetermined time period is from 8 o'clock to 9 o'clock, the predetermined unit is 1 second, that is, the cooling load value corresponding to the heat generated per second in the main transformer room is collected, and the cooling load value per second is accumulated. The accumulation time is 1 hour, and finally the total cooling load value of the time period from 8 o'clock to 9 o'clock is obtained.

[0030] In an optional embodiment, a plurality of first cooling load values ​​of the target structure in a plurality of time periods and a plurality of second cooling load values ​​of equipment arranged in the target structure in a plurality of time periods are obtained; and a plurality of total cooling load values ​​are determined according to the plurality of first cooling load values ​​and the plurality of second cooling load values.

[0031] Optionally, the first cooling load value refers to the cooling load value corresponding to the heat value generated by the enclosure structure of the main transformer room within a predetermined time period, and the enclosure structure of the main transformer room refers to the building structure used to surround and protect the main transformer in the substation. The calculation formula of the enclosure structure cooling load value is:

[0032] LQ n(q) =F×K×(t l,n -t n ),

[0033] In the formula, LQ n(q) represents the cooling load value corresponding to the enclosure structure, F represents the area of ​​the enclosure structure, K represents the heat transfer coefficient of the enclosure structure, t l,n Indicates the temperature value of the enclosure structure, t n It represents the design temperature of the main transformer room, where the area of ​​the enclosure structure and the heat transfer coefficient can be obtained from the architectural design drawings. The design temperature of the main transformer room is a standard value determined according to the equipment operation requirements, user personalized requirements or the environmental design standards promulgated by the state.

[0034]

[0035] In the formula, α ω represents the heat transfer coefficient between the outer surface of the enclosure structure and the outdoor air, t ωrepresents the outdoor air temperature, ρ represents the absorption coefficient of the outer surface of the envelope structure for solar radiation, and I represents the solar radiation intensity received by the outer surface of the envelope structure, among which, the heat exchange coefficient between the outer surface of the envelope structure and the outdoor air, the absorption coefficient of the outer surface of the envelope structure for solar radiation, and the solar radiation intensity received by the outer surface of the envelope structure can be obtained from the architectural design drawings.

[0036] The second cooling load value refers to the cooling load value corresponding to the heat generated by the internal equipment of the main transformer room within a predetermined time period. The main transformer room usually includes main transformers, disconnectors, fuses and other equipment. These equipment will generate a certain amount of heat during operation. The calculation formula for the cooling load value corresponding to the internal equipment is:

[0037] LQ s =ΔP0+ΔP C η,

[0038] In the formula, LQ s Indicates the cooling load value corresponding to the internal equipment, ΔP0 indicates the no-load loss of the transformer, ΔP C represents the rated load loss of the transformer, and η represents the hourly load rate of the transformer.

[0039] According to the above formula, the cooling load value corresponding to the enclosure structure of the main transformer room and the cooling load value corresponding to the internal equipment of the main transformer room in the predetermined time period are calculated respectively, and the total cooling load value in the corresponding time period is obtained according to the two cooling load values;

[0040] In an optional embodiment, a negative value of each of the plurality of first cooling load values ​​is determined; the negative values ​​of each of the plurality of first cooling load values ​​are compared with the second cooling load value in the corresponding time period to obtain a plurality of comparison results; based on the plurality of comparison results, the plurality of first cooling load values ​​and the plurality of second cooling load values ​​are processed to determine a plurality of total cooling load values.

[0041] Optionally, the negative value of the first cooling load value is compared with the second cooling load value in the same time period. If the second cooling load value is greater than the negative value of the first cooling load value, the total cooling load value of the main transformer room is the sum of the first cooling load value and the second cooling load value. If the second cooling load value is less than the negative value of the first cooling load value, the total cooling load value of the main transformer room is zero.

[0042] The calculation formula is:

[0043]

[0044] Where, Q is the total cooling load value of the main transformer room in the predetermined time period, LQ s is the second cooling load value, i.e., the cooling load value corresponding to the heat generated by the internal equipment of the main transformer room during the predetermined time period, LQ n(q)is the first cooling load value, that is, the cooling load value corresponding to the heat generated by the enclosure structure of the main transformer room within a predetermined time period.

[0045] Step S104, determining multiple ventilation volume requirements of the target structure corresponding to each other in multiple time periods according to multiple total cooling load values;

[0046] In this step, the ventilation volume required for the main transformer room in each time period is determined according to the total cooling load value of the main transformer room in different time periods. The total cooling load value reflects the heat that needs to be removed from the main transformer room in different time periods, and the ventilation volume demand determines the air flow and ventilation effect inside the main transformer room. By analyzing and calculating the corresponding relationship between the total cooling load value and the ventilation volume demand, the ventilation volume required for the building in different time periods can be effectively determined to ensure indoor air quality and comfort.

[0047] In an optional embodiment, multiple temperature difference values ​​corresponding to multiple time periods are obtained, wherein the multiple temperature difference values ​​are the difference between the internal and external temperatures of the target structure; and multiple ventilation volume requirements are determined based on multiple total cooling load values ​​and the multiple temperature difference values.

[0048] Optionally, the difference between the internal and external temperatures of the main transformer room refers to the difference between the indoor design temperature of the main transformer room and the outdoor air temperature of the main transformer room within a predetermined time period, and the calculation formula is:

[0049]

[0050] Where L represents the ventilation volume in the predetermined time period, Q represents the total cooling load value of the main transformer room in the predetermined time period, and t n Indicates the design temperature of the main transformer room within the predetermined time period, t ω Indicates the outdoor air temperature of the main transformer room during the preset time period.

[0051] According to the above formula, the corresponding formula in each time period is substituted into the above formula to obtain the ventilation volume required for the main transformer room in each time period.

[0052] Step S106, determining the size of the vents and the combination of ventilation equipment according to multiple ventilation volume requirements.

[0053] In this step, the internal equipment of the main transformer room will generate heat during operation. When the electricity demand is at its peak, the internal equipment of the main transformer room needs to bear a larger current load, and the heat generated by the resistance will also increase. Therefore, when the electricity demand is at its peak, the heat generated by the internal equipment of the main transformer room will also increase. At the same time, high-load operation will also lead to increased equipment losses, further increasing the degree of heat generated by the equipment. In addition, the heat generated by the enclosure structure of the main transformer room will also change with changes in the environment. For example, the heat generated by the enclosure structure of the main transformer room at noon is higher than the heat generated at night, and the heat generated in summer is higher than the heat generated in winter. The heat generated by the main transformer room in different time periods is different, so the ventilation volume requirements in different time periods are inconsistent. It is necessary to consider the coordination of different ventilation volume requirements and the overall effect to determine the combination of ventilation equipment, and determine the size of the vents according to the combination of ventilation equipment to achieve a good ventilation effect.

[0054] In an optional embodiment, a maximum ventilation volume requirement is determined based on multiple ventilation volume requirements; a combination of ventilation equipment is determined based on the maximum ventilation volume requirement; and a size of the vent is determined based on the combination of ventilation equipment.

[0055] Optionally, by analyzing multiple ventilation volume requirements, the maximum ventilation volume requirement of the main transformer room is determined, that is, the maximum ventilation volume that the ventilation system needs to handle, and according to the maximum ventilation volume requirement, the ventilation equipment combination that meets the maximum ventilation volume is determined. 总 ≥L max , L 总 Indicates the total air volume of the ventilation equipment combination, L max Indicates the maximum annual air volume demand. Ventilation equipment is mainly fans, and fans may have various powers. The combination of ventilation equipment can include multiple fans with different powers. When the ventilation volume demand is large, fans with large powers and fans with small powers can be turned on at the same time. When the ventilation volume demand is small, only fans with small powers can be turned on to achieve the purpose of energy saving and ensure that the ventilation system can effectively meet the ventilation demand. The power calculation formula of the fan is:

[0056] η e.min ≤η t ≤η e.max ,

[0057] η t represents the real-time efficiency of the fan, η e.max Indicates the maximum efficiency of the fan in the high-efficiency range, η e.m in represents the minimum efficiency of the fan in the high-efficiency range.

[0058]

[0059] N t Indicates real-time power, L tIndicates the real-time air volume, P t Indicates the fan pressure.

[0060] After determining the combination of ventilation equipment, determine the size of the vents according to the combination of ventilation equipment.

[0061] The calculation formula is:

[0062] In the formula, A represents the ventilation area, v max Indicates the air velocity limit of the vent.

[0063] Through this method, the ventilation system can be designed according to the actual ventilation needs, reducing energy consumption while ensuring the ventilation effect.

[0064] In an optional embodiment, among multiple ventilation volume requirements, a target ventilation volume requirement that is closest to a predetermined threshold is selected; a first ventilation device whose ventilation volume meets the target ventilation volume requirement is determined; an unmet ventilation volume requirement is determined based on the maximum ventilation volume requirement and the target ventilation volume requirement; a second ventilation device whose ventilation volume meets the unmet ventilation volume requirement is determined; and the first ventilation device and the second ventilation device are combined to determine a combination of the ventilation devices.

[0065] Optionally, the ventilation volume requirements corresponding to different time periods are inconsistent, and the ventilation volume requirement with a higher frequency is selected as the predetermined threshold, for example, Figure 2 As shown in the statistics, the most frequent ventilation demand is 200m 3 / h, so the predetermined threshold can be determined as 200m 3 / h, that is, the target ventilation volume is 200m 3 / h, choose 200m 3 / h ventilation volume corresponding to the first ventilation equipment. When the ventilation volume requirement is 200m 3 / h or less, only the first ventilation device needs to be turned on to meet the ventilation requirements, thus achieving the goal of energy saving and environmental protection. 3 / h. For example, at noon in summer, the internal equipment and external enclosure of the main transformer room are affected by the weather, and the heat generated increases. At the same time, the electricity consumption of residents is at its peak, and the heat generated by the internal equipment of the main transformer room will also increase accordingly. At this time, a more powerful ventilation device is needed to make up for the deficiency of the first ventilation device, so the second ventilation device should be turned on at this time. The total capacity of the second ventilation device should be the maximum ventilation demand minus the ventilation demand that can be met by the first ventilation device. Assuming the maximum ventilation demand is 500m 3 / h, the ventilation volume that the second ventilation equipment can achieve should be 300m 3 / h. The first ventilation device and the second ventilation device are combined together to obtain a ventilation device combination.

[0066] The calculation formula is:

[0067] Where, L 总 Indicates the total air volume of the ventilation equipment combination, L i额定 Indicates the rated air volume of the i-th fan. If there are two fans, the rated air volume of the first fan is 200m 3 / h, the rated air volume of the second fan is 300m 3 / h, then L 总 Equal to 500m 3 / h.

[0068] Optionally, assume that the required ventilation volume range of the main transformer room in a certain area within one year is 1-1000m 3 / h, including 200m 3 / h or less accounts for 50%, 200-500m 3 / h accounts for 30%, greater than 500m 3 / h accounts for 20%, then in this case, three ventilation equipment with different powers can be combined, which can achieve 200m 3 The first ventilation equipment with ventilation demand of 300m / h 3 / h ventilation demand of the second ventilation equipment, can achieve 500m 3 / h ventilation demand of the third ventilation equipment, when the ventilation demand is 200m 3 / h or less, only the first ventilation device needs to be turned on. When the ventilation volume requirement is 300m 3 / h, only the second ventilation device is turned on. When the ventilation volume requirement is 400m 3 / h, the first ventilation device and the second ventilation device can be turned on at the same time, or only the third ventilation device can be turned on. When the ventilation volume requirement is 600m 3 / h, the first and third ventilation equipment can be turned on. When the ventilation volume requirement is 1000m 3 / h, three ventilation devices can be turned on at the same time. The number of ventilation devices included in the ventilation device combination should be determined according to actual needs. If the demand for different ventilation volumes in a certain place varies greatly, multiple ventilation devices can be selected and combined according to actual conditions to minimize energy waste.

[0069] Step S108, integrating multiple ventilation equipment models according to the size of the ventilation openings and the combination of ventilation equipment to generate a ventilation system model of the target structure.

[0070] In this step, when the ventilation equipment is combined according to the ventilation equipment combination mode to generate the ventilation equipment model, it is necessary to ensure that the layout of the ventilation equipment is reasonable to avoid interference between the equipment and affect the ventilation effect. At the same time, the overall design and layout of the ventilation system should be considered to ensure that the ventilation equipment can effectively cover the ventilation needs of the entire substation. After generating the ventilation equipment model, the ventilation system model needs to be checked and optimized to ensure that the ventilation purpose of energy saving and environmental protection can be effectively achieved.

[0071] Through the above, a plurality of total cooling load values ​​corresponding to the target structure in a plurality of time periods are obtained, wherein the plurality of total cooling load values ​​are the heat values ​​that the equipment needs to dissipate during the cooling process; based on the plurality of total cooling load values, a plurality of ventilation volume requirements corresponding to the target structure in a plurality of time periods are determined; based on the plurality of ventilation volume requirements, the size of the vents and the combination of ventilation equipment are determined; based on the size of the vents and the combination of ventilation equipment, a plurality of ventilation equipment models are integrated to generate a ventilation system model of the target structure, thereby solving the technical problem in the prior art that the ventilation system of the main transformer room cannot be designed according to the actual ventilation volume requirement of the main transformer room, achieving the purpose of demand-oriented design of the ventilation system of the main transformer room, and further realizing the technical effect of low-carbon and efficient operation of the ventilation system of the main transformer room.

[0072] Based on the above embodiments and optional embodiments, the present invention proposes an optional implementation mode:

[0073] Step S1, obtaining a plurality of first cooling load values ​​of a target structure in a plurality of time periods, and a plurality of second cooling load values ​​of equipment installed in the target structure in a plurality of time periods; determining a plurality of total cooling load values ​​according to the plurality of first cooling load values ​​and the plurality of second cooling load values.

[0074] Optionally, the target structure refers to the main transformer room, and the first cooling load value refers to the cooling load value corresponding to the heat generated by the enclosure structure of the main transformer room, and the calculation formula is:

[0075] LQ n(q) =F×K×(t l,n -t n ),

[0076] In the formula, LQ n(q) represents the cooling load value corresponding to the enclosure structure, F represents the area of ​​the enclosure structure, K represents the heat transfer coefficient of the enclosure structure, t l,n Indicates the cooling load temperature value of the enclosure structure, t n It represents the design temperature of the main transformer room, where the area of ​​the enclosure structure and the heat transfer coefficient can be obtained from the architectural design drawings. The design temperature of the main transformer room is a standard value determined according to the equipment operation requirements, user personalized requirements or the environmental design standards promulgated by the state.

[0077]

[0078] In the formula, α ω represents the heat transfer coefficient between the outer surface of the enclosure structure and the outdoor air, t ω represents the outdoor air temperature, ρ represents the absorption coefficient of the outer surface of the enclosure structure to solar radiation, and I represents the solar radiation intensity received by the outer surface of the enclosure structure. Among them, the heat exchange coefficient between the outer surface of the enclosure structure and the outdoor air, the absorption coefficient of the outer surface of the enclosure structure to solar radiation, and the solar radiation intensity received by the outer surface of the enclosure structure can be obtained from the architectural design drawings.

[0079] The second cooling load value refers to the cooling load value corresponding to the heat generated by the internal equipment of the main transformer room during operation. The calculation formula is:

[0080] LQ s =ΔP0+ΔP C η,

[0081] In the formula, LQ s Indicates the cooling load value corresponding to the internal equipment, ΔP0 indicates the no-load loss of the transformer, ΔP C represents the rated load loss of the transformer, and η represents the hourly load rate of the transformer.

[0082] According to the relationship between the first cooling load value and the second cooling load value, the total cooling load value in multiple time periods is determined. For example, a day is divided into 24 time periods by hour, and the cooling load value of each hour is obtained by accumulating the total cooling load value of each second in the time period.

[0083] Step S2, determining the negative value of each of the multiple first cooling load values; comparing the negative value of each of the multiple first cooling load values ​​with the second cooling load value in the corresponding time period to obtain multiple comparison results; based on the multiple comparison results, processing the multiple first cooling load values ​​and the multiple second cooling load values ​​to determine multiple total cooling load values.

[0084] Optionally, the negative value of the first cooling load value in each time period is compared with the second cooling load value in the corresponding time period. If the negative value of the first cooling load value is less than the second cooling load value, then the total cooling load value in the time period is the sum of the negative value of the first cooling load value and the second cooling load value. If the negative value of the first cooling load in the time period is greater than the second cooling load value, then the total cooling load value in the time period is zero. The calculation formula is:

[0085]

[0086] Where, Q is the total cooling load value of the main transformer room in the predetermined time period, LQ s is the second cooling load value, i.e., the cooling load value corresponding to the heat generated by the internal equipment of the main transformer room during the predetermined time period, LQ n(q)is the first cooling load value, that is, the cooling load value corresponding to the heat generated by the enclosure structure of the main transformer room within a predetermined time period.

[0087] Step S3, obtaining multiple temperature difference values ​​corresponding to multiple time periods, wherein the multiple temperature difference values ​​are the difference between the internal and external temperatures of the target structure; and determining multiple ventilation volume requirements according to the multiple total cooling load values ​​and the multiple temperature difference values.

[0088] Optionally, the difference between the internal and external temperatures of the main transformer room refers to the difference between the indoor design temperature of the main transformer room and the outdoor temperature of the main transformer room within a predetermined time period, wherein the outdoor temperature data of the main transformer room can be directly obtained from the meteorological station, and the indoor temperature data of the main transformer room is a standard value determined by equipment operation requirements, user personalized requirements or national environmental design standards.

[0089] The calculation formula is:

[0090] Where L represents the ventilation volume in the predetermined time period, Q represents the total cooling load value of the main transformer room in the predetermined time period, and t n Indicates the design temperature of the main transformer room within the predetermined time period, t ω Indicates the outdoor temperature of the main transformer room within a preset time period.

[0091] For example, when the total cooling load value in a certain period of time is 1kw, the indoor design temperature of the main transformer room is 40 degrees Celsius, and the outdoor temperature of the main transformer room is 20 degrees Celsius, these data are put into the formula, and the ventilation volume demand in this period of time is about 148m 3 / h.

[0092] Step S4, determining a maximum ventilation volume requirement according to multiple ventilation volume requirements; determining a combination of ventilation equipment according to the maximum ventilation volume requirement; and determining a size of the ventilating opening according to the combination of ventilation equipment.

[0093] Optionally, multiple ventilation demands per unit time in the main transformer room of a certain area are screened to select the maximum ventilation demand. The unit time is usually one year, because the temperature difference in each season will lead to large differences in ventilation demand in each season. If the ventilation demand required by the transformer room in winter is used as a sample to screen the maximum ventilation demand and determine the combination of ventilation equipment, the ventilation equipment formed cannot cover the ventilation demand in summer. If the ventilation demand required by the transformer room in summer is used as a sample to screen the maximum ventilation demand and determine the combination of ventilation equipment, the ventilation equipment formed has a large power and will cause energy waste. Therefore, it is more appropriate to use the statistics of ventilation demand for one year as the basis for determining the combination of ventilation equipment. Determine the total air volume when all ventilation equipment combinations are turned on according to the maximum ventilation demand, that is, L 总 ≥L max , L 总Indicates the total air volume of the ventilation equipment combination, L max Indicates the maximum annual air volume demand. After determining the combination of ventilation equipment, measure the size of each ventilation equipment and then determine the size of the vent.

[0094] Step S5, among multiple ventilation volume requirements, select a target ventilation volume requirement that is closest to a predetermined threshold; determine a first ventilation device whose ventilation volume meets the target ventilation volume requirement; determine an unmet ventilation volume requirement based on the maximum ventilation volume requirement and the target ventilation volume requirement; determine a second ventilation device whose ventilation volume meets the unmet ventilation volume requirement; combine the first ventilation device and the second ventilation device to determine a combination method of the ventilation devices.

[0095] Optionally, the predetermined threshold refers to the ventilation volume demand with the highest frequency in a unit time, and the unit time is generally a year. For example, in a year, the maximum ventilation volume demand is 800m 3 / h,200m 3 The frequency probability of ventilation demand below 200-600m / h is 60%. 3 The probability of ventilation demand below 600-800m / h is 30%. 3 The probability of ventilation demand below / h is 10%, and the calculation formula is:

[0096]

[0097] Ltotal represents the total air volume of the ventilation equipment combination, and Lirated represents the rated air volume of the i-th fan.

[0098] According to the above formula, the total air volume of the fan should be greater than or equal to 800m 3 / h, the air volume of the first ventilation equipment should be 200m 3 / h, the air volume of the second ventilation equipment should be 600-200=400m 3 / h, the air volume of the third ventilation equipment should be 800-600=200m 3 / h. Therefore, the combination of ventilation equipment is two 200m 3 / h ventilation equipment and a 400m 3 / h ventilation equipment. The power calculation formula for each ventilation equipment is:

[0099] η e.min ≤η t ≤η e.max ,

[0100] Where η t represents the real-time efficiency of the fan, η e.max Indicates the maximum efficiency of the fan in the high-efficiency range, η e.m i nIndicates the minimum efficiency of the fan in the high-efficiency range.

[0101]

[0102] Where N t Indicates real-time power, L t Indicates the real-time air volume, P t Indicates the fan pressure.

[0103] Step S6, integrating multiple ventilation equipment models according to the size of the vents and the combination of ventilation equipment to generate a ventilation system model of the target structure.

[0104] Optionally, according to the statistical values ​​of ventilation demand in different regions and time periods, multiple suitable ventilation equipment are selected, and the multiple suitable ventilation equipment are combined together to form a ventilation system model. After the ventilation system model is tested and improved, it can be used in real life.

[0105] It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and that, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0106] In this embodiment, a ventilation system generating device is also provided, which is used to implement the above-mentioned embodiments and preferred implementation modes, and the descriptions that have been made will not be repeated. As used below, the terms "module" and "device" can be a combination of software and / or hardware that implements a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0107] According to an embodiment of the present invention, there is also provided an apparatus embodiment for implementing the ventilation system model generation method. Figure 3 is a schematic diagram of a ventilation system generating device according to an embodiment of the present invention. Figure 3 As shown, the ventilation system generating device includes a first acquisition module 31, a first determination module 32, a second determination module 33, and an integration module 34. The device is described below.

[0108] The first acquisition module 31 is used to acquire a plurality of total cooling load values ​​corresponding to the target structure in a plurality of time periods, wherein the plurality of total cooling load values ​​are heat values ​​that the equipment needs to dissipate during the cooling process;

[0109] A first determination module 32, connected to the first acquisition module 31, is used to determine a plurality of ventilation volume requirements corresponding to a target structure in a plurality of time periods according to a plurality of total cooling load values;

[0110] The second determination module 33 is connected to the first determination module 32, and is used to determine the size of the ventilation opening and the combination of ventilation equipment according to multiple ventilation volume requirements.

[0111] The integration module 34 is connected to the second determination module 33 and is used to integrate multiple ventilation equipment models according to the size of the ventilation opening and the combination mode of the ventilation equipment to generate a ventilation system model of the target structure.

[0112] In a ventilation system generation device provided by an embodiment of the present invention, a first acquisition module is provided to obtain a plurality of total cooling load values ​​corresponding to a target structure in a plurality of time periods, wherein the plurality of total cooling load values ​​are the heat values ​​that the equipment needs to dissipate during the cooling process; a first determination module is provided to determine a plurality of ventilation volume requirements corresponding to a target structure in a plurality of time periods according to the plurality of total cooling load values; a second determination module is provided to determine the size of the vents and the combination of ventilation equipment according to the plurality of ventilation volume requirements; an integration module is provided to integrate a plurality of ventilation equipment models according to the size of the vents and the combination of ventilation equipment to generate a ventilation system model of the target structure. The technical problem that the ventilation system of the main transformer room cannot be designed according to the actual ventilation volume requirements of the main transformer room in the prior art is solved, and the purpose of designing the ventilation system of the main transformer room in a demand-oriented manner is achieved, thereby realizing the technical effect of low-carbon and high-efficiency operation of the ventilation system of the main transformer room.

[0113] It should be noted that the above modules can be implemented by software or hardware. For example, for the latter, it can be implemented in the following ways: the above modules can be located in the same processor; or the above modules can be located in different processors in any combination.

[0114] It should be noted that the first acquisition module 31, the first determination module 32, the second determination module 33, and the integration module 34 correspond to steps S102 to S108 in the embodiment, and the examples and application scenarios implemented by the modules and the corresponding steps are the same, but are not limited to the contents disclosed in the above embodiments. It should be noted that the modules as part of the device can be run in a computer terminal.

[0115] It should be noted that the optional or preferred implementation of this embodiment can refer to the relevant description in the embodiment, which will not be repeated here.

[0116] The above-mentioned ventilation system generating device may also include a processor and a memory. The first acquisition module 31, the first determination module 32, the second determination module 33, the integration module 34, etc. are all stored in the memory as program units, and the processor executes the above-mentioned program units stored in the memory to realize corresponding functions.

[0117] The processor includes a kernel, which retrieves the corresponding program unit from the memory. There can be one or more kernels. The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one storage chip.

[0118] An embodiment of the present invention provides a non-volatile storage medium on which a program is stored. When the program is executed by a processor, a ventilation system model generation method is implemented.

[0119] like Figure 4 As shown, an embodiment of the present invention provides an electronic device, the electronic device 10 includes a processor, a memory, and a program stored in the memory and executable on the processor. When the processor executes the program, the following steps are implemented: the memory is used to store a computer program, wherein when the computer program is executed by the processor, the processor implements the above-mentioned ventilation system model generation method. The device in this article may be a server, a PC, etc.

[0120] The present invention also provides a computer program product, which, when executed on a data processing device, is suitable for executing a program initialized with the following method steps: computer instructions are executed by a processor to perform the above ventilation system model generation method.

[0121] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0122] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0123] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0124] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process in the computer or other programmable device. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0125] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0126] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0127] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0128] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0129] It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as methods, systems or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0130] The above are only embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A ventilation system model generation method, characterized in that: include: Acquire a plurality of total cooling load values ​​corresponding to the target structure in a plurality of time periods, wherein the plurality of total cooling load values ​​are heat values ​​that the equipment needs to dissipate during the cooling process; Determining, according to the plurality of total cooling load values, a plurality of ventilation volume requirements of the target structure corresponding to the plurality of time periods; Determining the size of the vents and the combination of ventilation equipment according to the multiple ventilation volume requirements; According to the size of the vents and the combination of the ventilation equipment, multiple ventilation equipment models are integrated to generate a ventilation system model of the target structure.

2. The method according to claim 1, characterized in that The step of obtaining a plurality of total cooling load values ​​corresponding to the target structure in a plurality of time periods comprises: Acquire a plurality of first cooling load values ​​of the target structure in the plurality of time periods, and a plurality of second cooling load values ​​of equipment arranged in the target structure in the plurality of time periods; The plurality of total cooling load values ​​are determined based on the plurality of first cooling load values ​​and the plurality of second cooling load values.

3. The method according to claim 2, characterized in that The determining the plurality of total cooling load values ​​according to the plurality of first cooling load values ​​and the plurality of second cooling load values ​​comprises: determining a negative value of each of the plurality of first cooling load values; Comparing the negative values ​​of the plurality of first cooling load values ​​with the second cooling load value in the corresponding time period to obtain a plurality of comparison results; Based on the plurality of comparison results, the plurality of first cooling load values ​​and the plurality of second cooling load values ​​are processed to determine the plurality of total cooling load values.

4. The method according to claim 1, characterized in that: Determining a plurality of ventilation volume requirements of the target structure corresponding to the plurality of time periods according to the plurality of total cooling load values ​​comprises: Acquire a plurality of temperature difference values ​​corresponding to the plurality of time periods, wherein the plurality of temperature difference values ​​are differences between the internal and external temperatures of the target structure; The plurality of ventilation volume requirements are determined according to the plurality of total cooling load values ​​and the plurality of temperature difference values.

5. The method according to claim 1, characterized in that Determining the size of the vents and the combination of ventilation equipment according to the multiple ventilation volume requirements includes: determining a maximum ventilation volume requirement according to the multiple ventilation volume requirements; Determining a combination mode of the ventilation equipment according to the maximum ventilation volume requirement; The size of the ventilation opening is determined according to the combination of the ventilation equipment.

6. The method according to claim 5, characterized in that The method of determining the combination of the ventilation equipment according to the maximum ventilation volume requirement includes: Selecting a target ventilation volume requirement that is closest to a predetermined threshold value from among the multiple ventilation volume requirements; Determine a first ventilation device whose ventilation volume meets the target ventilation volume requirement; Determining an unmet ventilation volume requirement according to the maximum ventilation volume requirement and the target ventilation volume requirement; determining a second ventilation device having a ventilation rate that satisfies the unmet ventilation rate demand; The first ventilation device and the second ventilation device are combined to determine a combination mode of the ventilation devices.

7. A ventilation system generating device, characterized in that: include: A first acquisition module is used to acquire a plurality of total cooling load values ​​corresponding to a target structure in a plurality of time periods, wherein the plurality of total cooling load values ​​are heat values ​​that the equipment needs to dissipate during the cooling process; A first determination module is used to determine a plurality of ventilation volume requirements of the target structure corresponding to the plurality of time periods according to the plurality of total cooling load values; A second determination module is used to determine the size of the vents and the combination of ventilation equipment according to the multiple ventilation volume requirements; The integration module is used to integrate multiple ventilation equipment models according to the size of the ventilation opening and the combination mode of the ventilation equipment to generate a ventilation system model of the target structure.

8. A non-volatile storage medium, characterized in that: The non-volatile storage medium stores a plurality of instructions, and the instructions are suitable for being loaded by a processor and executing the ventilation system model generation method according to any one of claims 1 to 6.

9. An electronic device, characterized in that: include: One or more processors and a memory, wherein the memory is used to store one or more programs, wherein when the one or more programs are executed by the one or more processors, the one or more processors implement the ventilation system model generation method described in any one of claims 1 to 6.

10. A computer program product comprising computer instructions, characterized in that The computer instructions are executed by the processor to generate a ventilation system model according to any one of claims 1 to 6.

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