A 110kV / 220kV skid-mounted transformer device for substations

Abstract

The present invention relates to the technical field of high-voltage power transmission and distribution, and in particular to a 110kV / 220kV skid-mounted transformer device for a substation, comprising a transformer room, an automatic control room and a radiator room, for carrying a detection mechanism, a fire extinguishing mechanism, a heat dissipation mechanism and a control mechanism; a control mechanism, which is arranged in the automatic control room, for obtaining temperature data, smoke data and monitoring images of several monitoring devices detected by the detection mechanism, a data analysis module for analyzing the temperature data and smoke data, an image analysis module for analyzing monitoring images of several monitoring devices, a start-up execution module for determining the start-up of the fire extinguishing mechanism based on the analysis results of the data analysis module and the analysis results of the image analysis module, and an adjustment of the fire extinguishing mechanism or the heat dissipation mechanism based on the fire situation image of the image analysis module in the fire extinguishing operation performed by the fire extinguishing mechanism. The present invention improves the efficiency of fire extinguishing of skid-mounted transformers.

Description

Technical Field

[0001] The present invention relates to the technical field of high-voltage power transmission and distribution, and in particular to a 110kV / 220kV skid-mounted transformer device for a substation. Background Art

[0002] With the rapid development of social economy, the demand for electricity is growing. As an important part of the power system, the operation stability and efficiency of substations are particularly important. In order to meet the growing demand for electricity, the design and construction of substations are constantly developing in the direction of intelligence and integration. As a new type of equipment for substations, skid-mounted transformer devices have the advantages of easy installation, small footprint, and easy maintenance.

[0003] Chinese patent application publication number: CN111696771A discloses a skid-mounted transformer device and a method of using the same, including a skid body, the skid body is divided into a transformer room and a security control room by a partition, the transformer room is provided with a transformer body, the lower end of the transformer body is provided with an oil collecting tank, the transformer body is also connected with a busbar system and a transformer radiator, the busbar system extends out of the skid body and is connected with external wires, and the transformer radiator extends out of the skid body through a pipeline; the security control room is provided with a control system and a gas fire extinguishing system, the skid body is also provided with a fire alarm system, an intelligent ventilation system, a heating system and a dehumidification system, and the transformer radiator, the gas fire extinguishing system, the fire alarm system, the intelligent ventilation system, the heating system and the dehumidification system are all electrically connected to the control system. However, the prior art has the following problems: the prior art has low response speed and accuracy to skid-mounted transformer fire extinguishing, which leads to the problem of low efficiency of skid-mounted transformer fire extinguishing. Summary of the invention

[0004] To this end, the present invention provides a 110kV / 220kV skid-mounted transformer device for a substation, so as to overcome the problem of low efficiency of fire extinguishing of skid-mounted transformers in the prior art.

[0005] To achieve the above object, the present invention provides a 110kV / 220kV skid-mounted transformer device for a substation, comprising:

[0006] The skid body includes a transformer room, an automatic control room and a radiator room, which are used to carry the detection mechanism, the fire extinguishing mechanism, the heat dissipation mechanism and the control mechanism, wherein:

[0007] A detection mechanism, which includes a temperature sensor and a smoke sensor arranged on a transformer housing in the transformer room, and a plurality of monitoring devices arranged on a side wall in the transformer room;

[0008] A fire extinguishing mechanism, comprising a fire extinguishing cabinet disposed at one side of the transformer room for storing fire extinguishing materials, and a plurality of nozzles disposed at the upper part of the transformer room for spraying fire extinguishing materials into the transformer room;

[0009] The control mechanism is arranged in the automatic control room and includes:

[0010] A data acquisition module, which is used to acquire temperature data, smoke data and monitoring images of several monitoring devices detected by the detection mechanism;

[0011] A data analysis module, connected to the data acquisition module, for analyzing the temperature data and smoke data;

[0012] An image analysis module connected to the data analysis module is used to determine the activation mode of the fire extinguishing system based on the urgency evaluation value obtained from the fire image, and to determine the fire extinguishing mode of the fire extinguishing system according to the fire spread speed evaluation value or the importance evaluation value of the electrical components around the fire area, to determine the development trend of the fire based on the comparison result of the red flame ratio and the blue flame ratio in the current fire image, and to determine the eligibility of the adjustment mode according to the current blue flame area or the current red flame area under the condition of the corresponding fire development trend;

[0013] A startup execution module is connected to the image analysis module to determine the eligibility of the time used to extinguish the current fire area according to the current environmental evaluation value under the condition of the corresponding startup mode, and to determine whether to reduce the fire extinguishing area range or increase the injection rate according to the ratio of the current environmental evaluation value to the corresponding preset environmental evaluation value under the condition that the time used to extinguish the current fire area is unqualified, and to determine the regional adjustment coefficient optimization mode or the injection rate optimization mode according to the relative difference between the current blue flame area area and the blue flame area area after a few seconds, or the relative difference between the current red flame area area and the red flame area after a few seconds under the condition that the adjustment mode is unqualified.

[0014] Furthermore, the image analysis module determines an urgency evaluation value based on the analysis of the fire image, determines to start the fire extinguishing mechanism in the first starting mode based on the comparison result that the urgency evaluation value is less than or equal to the preset urgency evaluation value, and determines the number of activated sprinklers to perform regional fire extinguishing or activates all sprinklers to perform covering fire extinguishing based on the comparison result between the fire spread speed evaluation value and the preset fire spread speed evaluation value.

[0015] Furthermore, the image analysis module determines an urgency evaluation value based on the analysis of the fire image, determines to start the fire extinguishing mechanism in the second starting mode based on the comparison result that the urgency evaluation value is greater than a preset urgency evaluation value, and determines the number of enabled sprinklers to perform regional fire extinguishing or enables all sprinklers to perform covering fire extinguishing based on the comparison result between the importance evaluation value of the electrical component and the preset importance evaluation value.

[0016] Furthermore, under the condition of determining the corresponding startup method, the startup execution module determines that the time used to extinguish the current fire area is unqualified based on the comparison result that the current environmental evaluation value is less than or equal to the preset environmental evaluation value, and determines the adjustment method of reducing the fire extinguishing area range with the regional adjustment coefficient based on the comparison result that the ratio is less than or equal to the preset ratio, wherein the ratio is the ratio of the current environmental evaluation value to the preset environmental evaluation value.

[0017] Furthermore, the startup execution module determines that the time used to extinguish the current fire area is unqualified based on the comparison result that the current environmental evaluation value is less than or equal to the preset environmental evaluation value under the condition of determining the corresponding startup method, and determines the adjustment method of increasing the injection rate of the nozzle with the injection rate adjustment coefficient based on the comparison result that the ratio is greater than the preset ratio, wherein the ratio is the ratio of the current environmental evaluation value to the preset environmental evaluation value.

[0018] Furthermore, under the condition of determining whether to adjust the fire extinguishing area range or the nozzle spray rate, the image analysis module determines that the current fire is developing slowly based on the comparison result that the proportion of red flames in the current fire image is less than or equal to the proportion of blue flames, and determines that the adjustment method is unqualified based on the comparison result that the current blue flame area is larger than the blue flame area a few seconds later.

[0019] Furthermore, the startup execution module determines, under the condition that the adjustment method is determined to be unqualified, to increase the corresponding regional adjustment coefficient by the corresponding preset regional optimization adjustment coefficient based on the comparison result that the relative difference between the current blue flame area and the blue flame area after a few seconds is less than or equal to the first preset relative difference.

[0020] Furthermore, under the condition of determining the adjustment method of adjusting the fire extinguishing area range or adjusting the nozzle injection rate, the image analysis module determines that the current fire is developing rapidly based on the comparison result that the proportion of red flames in the current fire image is greater than the proportion of blue flames, and determines that the adjustment method is unqualified based on the fact that the area of ​​the current blue flame area is greater than the area of ​​the blue flame area a few seconds later.

[0021] Furthermore, the startup execution module determines to optimize the injection rate based on a comparison result of a relative difference between the current red flame area and the red flame area after a few seconds and a second preset relative difference when determining that the adjustment mode is unqualified.

[0022] Furthermore, the startup execution module determines, under the condition of determining that the injection rate is to be optimized, to increase the corresponding injection rate adjustment coefficient with the corresponding preset injection optimization adjustment coefficient based on a comparison result of a relative difference between the current red flame area and the red flame area after a few seconds and a second preset relative difference.

[0023] Compared with the prior art, the beneficial effect of the present invention lies in that the present invention selects the most appropriate fire extinguishing system startup method by comparing the urgency evaluation value obtained from the fire image with the preset urgency evaluation value, thereby reducing the risk of delay or misoperation caused by human factors, significantly improving the efficiency of fire extinguishing response, and thus improving the efficiency of skid-mounted transformer fire extinguishing.

[0024] Furthermore, after determining the activation mode of the fire extinguishing system, the present invention further intelligently selects regional or covering fire extinguishing modes according to the fire spread speed or the importance of electrical components around the fire area, thereby improving the pertinence and effectiveness of the fire extinguishing strategy and avoiding excessive or insufficient fire extinguishing measures. By accurately assessing the fire spread speed and the importance of electrical components, the fire can be effectively controlled while protecting key facilities.

[0025] Furthermore, after determining the first start-up mode, the present invention evaluates the current environment to determine the eligibility of the fire extinguishing time, and adjusts the fire extinguishing strategy according to the evaluation result. If the fire extinguishing time is not qualified, the fire extinguishing area range or the spray rate of the nozzle is flexibly adjusted according to the ratio of the environmental evaluation value to the preset value to optimize the fire extinguishing effect. By evaluating the environmental parameters in real time and dynamically adjusting the fire extinguishing strategy, the fire extinguishing efficiency and effect are ensured, thereby improving the efficiency of fire extinguishing of the skid-mounted transformer.

[0026] Furthermore, after determining the second starting mode, the present invention determines whether the fire extinguishing time is qualified by comparing the current environmental evaluation value with the second preset environmental evaluation value, and adjusts the fire extinguishing area range or the spray rate of the nozzle accordingly to optimize the fire extinguishing efficiency. Through real-time environmental evaluation and dynamic adjustment strategies, the timeliness and effectiveness of fire extinguishing work in emergency situations are ensured.

[0027] Furthermore, the present invention determines the development trend of the fire by analyzing the proportion of red and blue flames in the fire image, provides a basis for adjusting the fire extinguishing strategy, quickly identifies the development trend of the fire, and helps to take targeted measures in a timely manner, thereby more effectively controlling the fire and reducing fire losses.

[0028] Furthermore, the present invention intelligently adjusts the fire extinguishing strategy, including the fire extinguishing area and the injection rate, by the proportion of flame colors in the fire image and its changing trend. If the fire development does not meet expectations, the adjustment coefficient is further optimized according to the change of the flame area to accurately control the fire, thereby achieving real-time monitoring of the fire development and accurate adjustment of the fire extinguishing strategy, ensuring the efficiency and effect of fire extinguishing. By continuously optimizing the adjustment coefficient, it is possible to respond to changes in the fire more quickly, thereby improving the efficiency of fire extinguishing of skid-mounted transformers. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a plan view of a 110kV / 220kV skid-mounted transformer device used in a substation according to an embodiment of the present invention;

[0030] Figure 2 It is a front view structural schematic diagram of an embodiment of the present invention;

[0031] Figure 3 It is a front cross-sectional structural schematic diagram of an embodiment of the present invention;

[0032] Figure 4 It is a schematic diagram of the right side cross-sectional structure of an embodiment of the present invention;

[0033] Figure 5 A flowchart of determining a startup method when starting a fire extinguishing system according to an embodiment of the present invention;

[0034] Figure 6 A flow chart for determining the eligibility of the time taken to extinguish the current fire area according to an embodiment of the present invention;

[0035] In the figure, 1. Plate radiator; 2. Radiator room; 3. Connecting oil circuit; 4. Oil collecting tank; 5. Lighting lamp; 6. Temperature control equipment; 7. Transformer; 8. Busbar system; 9. Temperature sensor; 10. Monitoring equipment; 11. Emergency lighting system; 12. Fire extinguisher; 13. Sound and light alarm; 14. Intelligent management system; 15. Automatic control room; 16. Transformer room; 17. Plug-in cable terminal; 18. Intelligent exhaust system; 19. Sprinkler; 20. , smoke sensor; 101, skid cover; 102, wall bushing; 103, skid upper part; 104, sealed anti-theft door; 105, skid lower part; 106, air inlet window; 107, skid base; 108, exhaust window; 109, fan; 110, electric shutter; 111, carbon fiber electric heater; 112, thermal insulation layer; 113, flame retardant pebbles; 114, oil drain pipe; 115, skid wall panel; 116, composite rock wool board. DETAILED DESCRIPTION

[0036] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0037] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0038] It should be pointed out that the data in this embodiment are obtained by comprehensive analysis and evaluation of the historical test data and the corresponding historical test results of the present invention three months before the current test. It can be understood by those skilled in the art that the present invention can determine the above parameters for a single item by selecting the highest proportion of values ​​as the preset standard parameters according to the data distribution, using weighted summation to use the obtained values ​​as the preset standard parameters, substituting each historical data into a specific formula and using the values ​​obtained by the formula as the preset standard parameters or other selection methods, as long as the system of the present invention can clearly define the different specific situations in the single determination process through the obtained values.

[0039] See also Figure 1 - Figure 6 As shown, Figure 1 It is a plan view of a 110kV / 220kV skid-mounted transformer device used in a substation according to an embodiment of the present invention; Figure 2 It is a front view structural schematic diagram of an embodiment of the present invention; Figure 3 It is a front cross-sectional structural schematic diagram of an embodiment of the present invention; Figure 4 It is a schematic diagram of the right side cross-sectional structure of an embodiment of the present invention; Figure 5 A flowchart of determining a startup method when starting a fire extinguishing system according to an embodiment of the present invention; Figure 6 A flow chart for determining the eligibility of the time used to extinguish the current fire area according to an embodiment of the present invention.

[0040] The 110kV / 220kV skid-mounted transformer device for a substation according to an embodiment of the present invention comprises:

[0041] The skid body includes a transformer room 16, an automatic control room 15 and a radiator room 2, which are used to carry transformer components, detection mechanisms, lighting mechanisms, temperature control mechanisms, fire extinguishing mechanisms, heat dissipation mechanisms and control mechanisms, wherein:

[0042] A transformer assembly, comprising a transformer housing disposed in the middle of the transformer chamber 16, a transformer 7 mounted on the housing for transforming a 110KV voltage to a 220KV voltage, a pluggable cable terminal 17 disposed at the front end of the transformer 7 for connecting a cable, a busbar system 8 disposed at the upper part of the transformer 7 for connecting an external cable, and a wall bushing 102 disposed at the upper part of the transformer 7 for covering the busbar system 8;

[0043] A detection mechanism, which includes a temperature sensor 9 and a smoke sensor 20 arranged on a transformer housing in the transformer chamber 16, and a plurality of monitoring devices 10 arranged on a side wall in the transformer chamber 16;

[0044] A fire extinguishing mechanism, comprising a fire extinguishing cabinet 12 disposed on one side of the transformer chamber 16 for storing fire extinguishing materials, a plurality of nozzles 19 disposed on the upper part of the transformer chamber 16 for spraying fire extinguishing materials into the transformer chamber 16, and a plurality of delivery pipes disposed on the inner side wall of the transformer chamber 16 connecting the fire extinguishing cabinet 12 and the plurality of nozzles 19;

[0045] A heat dissipation mechanism, comprising a plate-type radiator 1 disposed in a radiator chamber 2, a connecting oil passage 3 that is disposed in the radiator chamber 2 and the transformer chamber 7 to connect the plate-type radiator 1 and the transformer 7, an exhaust air window 108 disposed on a common side wall of the transformer chamber 16 and the radiator chamber 2, an electric shutter 110 disposed on the exhaust air window 108, and a fan 109 disposed on a side of the electric air window 108 close to the transformer chamber 16;

[0046] The lighting mechanism includes a lighting lamp 5 arranged on one side of the transformer chamber 16 and an audible and visual alarm 13 arranged outside the skid body;

[0047] The temperature control mechanism includes a temperature control device 6 disposed in the transformer chamber 16 near the lighting lamp 5, a heat insulation layer 112 disposed on the upper part 103 of the skid, flame retardant pebbles 113 disposed on the bottom of the skid, flame retardant pebbles 113 disposed in the transformer chamber 16, and a composite rock wool board 116 disposed in the wall plate 115 of the skid;

[0048] The control mechanism is arranged in the automatic control room 15, and includes a data acquisition module for acquiring the temperature data, smoke data and monitoring images of several monitoring devices 10 detected by the detection mechanism, a data analysis module for analyzing the temperature data and smoke data, an image analysis module for analyzing the monitoring images of several monitoring devices 10, a start-up execution module for determining to start the fire extinguishing mechanism based on the analysis results of the data analysis module and the analysis results of the image analysis module, and an adjustment of the fire extinguishing mechanism or the heat dissipation mechanism based on the image analysis results of the image analysis module during the fire extinguishing operation of the fire extinguishing mechanism.

[0049] In the embodiment of the present invention, the sled body includes a sled upper portion 103 and a sled lower portion 105 .

[0050] In the embodiment of the present invention, the fire extinguishing material is heptafluoropropane.

[0051] In the embodiment of the present invention, the monitoring device includes but is not limited to a camera, an industrial camera and / or an infrared camera.

[0052] The skid-mounted transformer device of the embodiment of the present invention further includes a skid upper cover 101, a sealed anti-theft door 104, a skid base 107, a skid wall panel 115, an oil drain pipe 114, an oil collecting tank 4, an air inlet window 106, a carbon fiber electric heater 111, an emergency lighting system 11, an intelligent management system 14, and an intelligent exhaust system 18.

[0053] Specifically, the image analysis module determines the activation mode when activating the fire extinguishing system according to the comparison result between the urgency evaluation value obtained from the fire image and the preset urgency evaluation value under the condition of the fire image collected by the monitoring device;

[0054] If the urgency evaluation value is less than or equal to the preset urgency evaluation value, determining to start the fire extinguishing mechanism in a first starting mode;

[0055] If the urgency evaluation value is greater than the preset urgency evaluation value, it is determined to start the fire extinguishing mechanism in the second starting mode.

[0056] In the embodiment of the present invention, the preset urgency evaluation value is 0.85, but the above value is not limited thereto, and those skilled in the art may also adjust the value according to actual needs.

[0057] Specifically, the present invention selects the most appropriate fire extinguishing system startup method by comparing the urgency evaluation value obtained from the fire image with the preset urgency evaluation value, thereby reducing the risk of delay or misoperation caused by human factors, significantly improving the efficiency of fire extinguishing response, and thus improving the efficiency of skid-mounted transformer fire extinguishing.

[0058] Specifically, the image analysis module calculates the urgency evaluation value according to the following formula, setting:

[0059] ;

[0060] Among them, Q represents the urgency evaluation value, I represents the average brightness in the fire image, Imax represents the maximum brightness in the fire image, and Imin represents the minimum brightness in the fire image.

[0061] Specifically, the image analysis module determines the fire extinguishing mode of the fire extinguishing system according to the comparison result between the fire spread speed evaluation value and the preset fire spread speed evaluation value under the condition of determining the first starting mode;

[0062] If the fire spread speed evaluation value is less than or equal to the preset fire spread speed evaluation value, it is determined to extinguish the fire in the fire area in a regional fire extinguishing manner;

[0063] If the fire spread speed evaluation value is greater than the preset fire spread speed evaluation value, it is determined to extinguish the fire in the fire area in a covering fire extinguishing manner.

[0064] In the embodiment of the present invention, the preset fire spread speed evaluation value is set to 0.83, but the above value is not limited thereto, and those skilled in the art may also adjust the value according to actual needs.

[0065] Specifically, the startup execution module calculates the fire spread speed evaluation value according to the following formula, setting:

[0066] ;

[0067] Among them, A represents the fire spread speed evaluation value, A t A represents the fire spot area of ​​the fire image at time t, t-Δt Represents the fire spot area of ​​the fire image after a time interval of Δt.

[0068] In the embodiment of the present invention, the fire point area is the ground area covered or affected by the flames in the fire.

[0069] Specifically, the number of activated sprinkler heads is the ratio of the effective coverage area of ​​the sprinkler heads to the area of ​​the fire zone.

[0070] Specifically, the image analysis module determines the fire extinguishing mode of the fire extinguishing system according to the comparison result of the importance evaluation value of the electrical components around the fire area and the preset importance evaluation value of 0.8 under the condition of determining the second starting mode;

[0071] If the importance evaluation value is less than or equal to the preset importance evaluation value, it is determined to extinguish the fire in the fire area in a regional fire extinguishing manner;

[0072] If the importance evaluation value is greater than the preset importance evaluation value, it is determined to extinguish the fire in the fire area in a covering fire extinguishing manner.

[0073] In the embodiment of the present invention, the preset importance evaluation value is set to 0.8, but the above value is not limited thereto, and those skilled in the art may also adjust the value according to actual needs.

[0074] Specifically, after determining the activation mode of the fire extinguishing system, the present invention further intelligently selects regional or covering fire extinguishing modes according to the fire spread speed or the importance of electrical components around the fire area, thereby improving the pertinence and effectiveness of the fire extinguishing strategy and avoiding excessive or insufficient fire extinguishing measures. By accurately assessing the fire spread speed and the importance of electrical components, the fire can be effectively controlled while protecting key facilities.

[0075] Specifically, the importance evaluation value is the ratio of the replacement cost multiplied by the average value of the system recovery time after a failure to the maximum value of the system recovery time after a failure.

[0076] In the embodiment of the present invention, the replacement cost is the cost required to replace or repair the electrical component, and the post-failure system recovery time is the time required for the system to recover to a normal state after the electrical component fails.

[0077] Specifically, the startup execution module determines the eligibility of the time used to extinguish the current fire area according to the comparison result between the current environmental evaluation value and the first preset environmental evaluation value of 0.8 under the condition of determining the first startup mode;

[0078] If the current environmental evaluation value is less than or equal to the first preset environmental evaluation value, it is determined that the time taken to extinguish the current fire area is unqualified;

[0079] If the current environmental evaluation value is greater than the first preset environmental evaluation value, it is determined that the time taken to extinguish the current fire area is qualified.

[0080] In the embodiment of the present invention, the first preset environmental evaluation value is set to 0.8. The preset environmental evaluation value is obtained by taking the average of several qualified environmental evaluation values ​​of the time taken to extinguish the current fire area in history. However, the above value is not limited to this. Technical personnel in this field can also adjust the value according to actual needs.

[0081] Specifically, the startup execution module calculates the current environmental evaluation value according to the following formula and sets:

[0082] ;

[0083] Among them, G represents the current environmental evaluation value, S0 represents the current fire area, Sd represents the maximum area of ​​the fire area, T0 represents the current indoor temperature measured by the temperature sensor, Tmax represents the maximum temperature during fire, and Tmin represents the indoor temperature when there is no fire.

[0084] Specifically, the startup execution module determines to adjust the fire extinguishing area range or the spray rate of the nozzle according to the comparison result of the ratio of the current environmental evaluation value to the first preset environmental evaluation value and the first preset ratio of 0.65 under the condition that it is determined that the time taken to extinguish the current fire area in the first startup mode is unqualified;

[0085] If the ratio is less than or equal to the first preset ratio, it is determined to reduce the fire extinguishing area range by the first area adjustment coefficient of 0.97;

[0086] If the ratio is greater than the first preset ratio, it is determined to increase the injection rate of the nozzle by a first injection rate adjustment coefficient of 1.05;

[0087] The ratio is the ratio of the current environment evaluation value to the first preset environment evaluation value.

[0088] In the embodiment of the present invention, the first preset ratio is set to 0.65, but the above value is not limited thereto, and those skilled in the art may also adjust the value according to actual needs.

[0089] Specifically, after determining the first start-up mode, the present invention evaluates the current environment to determine the eligibility of the fire extinguishing time, and adjusts the fire extinguishing strategy according to the evaluation result. If the fire extinguishing time is not qualified, the fire extinguishing area range or the spray rate of the nozzle is flexibly adjusted according to the ratio of the environmental evaluation value to the preset value to optimize the fire extinguishing effect. By evaluating environmental parameters in real time and dynamically adjusting the fire extinguishing strategy, the fire extinguishing efficiency and effect are ensured, thereby improving the efficiency of fire extinguishing of the skid-mounted transformer.

[0090] Specifically, the startup execution module determines the eligibility of the time used to extinguish the current fire area according to the comparison result between the current environmental evaluation value and the second preset environmental evaluation value of 0.83 under the condition of determining the second startup mode;

[0091] If the current environmental evaluation value is greater than the first preset environmental evaluation value and less than or equal to the second preset environmental evaluation value, it is determined that the time taken to extinguish the current fire area is unqualified;

[0092] If the current environmental evaluation value is greater than the second preset environmental evaluation value, it is determined that the time taken to extinguish the current fire area is qualified.

[0093] In the embodiment of the present invention, the second preset environmental evaluation value is set to 0.83. The preset environmental evaluation value is obtained by taking the average of several qualified environmental evaluation values ​​of the time taken to extinguish the current fire area in history. However, the above value is not limited to this. Technical personnel in this field can also adjust the value according to actual needs.

[0094] Specifically, the startup execution module determines to adjust the fire extinguishing area range or the spray rate of the nozzle according to the comparison result of the ratio of the current environmental evaluation value to the second preset environmental evaluation value and the second preset ratio 0.78 under the condition that it is determined that the time taken to extinguish the current fire area in the second startup mode is unqualified;

[0095] If the ratio is less than or equal to the second preset ratio, it is determined to reduce the fire extinguishing area range by the second area adjustment coefficient of 0.93;

[0096] If the ratio is greater than the second preset ratio, it is determined to increase the injection rate of the nozzle by a second injection rate adjustment coefficient of 1.07;

[0097] The ratio is the ratio of the current environment evaluation value to the second preset environment evaluation value.

[0098] In the embodiment of the present invention, the second preset ratio is set to 0.78, but the above value is not limited thereto, and those skilled in the art may also adjust the value according to actual needs.

[0099] Specifically, after determining the second starting mode, the present invention compares the current environmental evaluation value with the second preset environmental evaluation value to determine whether the fire extinguishing time is qualified, and adjusts the fire extinguishing area range or the spray rate of the nozzle accordingly to optimize the fire extinguishing efficiency. Through real-time environmental evaluation and dynamic adjustment strategies, the timeliness and effectiveness of fire extinguishing work in emergency situations are ensured.

[0100] Specifically, the image analysis module determines the development trend of the fire situation according to the comparison result of the red flame ratio and the blue flame ratio in the current fire situation image under the adjustment mode of adjusting the fire extinguishing area range or adjusting the nozzle spray rate;

[0101] If the red flame ratio is less than or equal to the blue flame ratio, it is determined that the current fire is developing slowly;

[0102] If the red flame proportion is greater than the blue flame proportion, it is determined that the current fire is developing rapidly.

[0103] In an embodiment of the present invention, the red flame ratio is determined by the ratio of the area of ​​the red flame in the fire image to the area of ​​all flames in the fire image; the blue flame ratio is determined by the ratio of the area of ​​the blue flame in the fire image to the area of ​​all flames in the fire image.

[0104] Specifically, the image analysis module determines the development trend of the fire by analyzing the proportion of red and blue flames in the fire image, provides a basis for adjusting the fire-fighting strategy, and quickly identifies the development trend of the fire, which helps to take targeted measures in a timely manner, thereby more effectively controlling the fire and reducing fire losses.

[0105] Specifically, the image analysis module determines the regional adjustment coefficient according to the comparison result of the difference between the red flame proportion value and the blue flame proportion value and the preset difference value of 0.2;

[0106] If the difference is less than or equal to the preset difference, determining the first region adjustment coefficient as 0.97;

[0107] If the difference is greater than the preset difference, the second region adjustment coefficient is determined to be 0.93;

[0108] The difference is the difference between the red flame proportion value and the blue flame proportion value.

[0109] In the embodiment of the present invention, the preset difference value is 0.2, but the above value is not limited thereto, and those skilled in the art may also adjust the value according to actual needs.

[0110] Specifically, the image analysis module determines the injection rate adjustment coefficient according to the comparison result of the ratio of the red flame proportion value to the blue flame proportion value and the preset ratio of 0.9;

[0111] If the ratio is less than or equal to the preset ratio, determining a first injection rate adjustment coefficient of 1.05;

[0112] If the ratio is greater than the preset ratio, determining a second injection rate adjustment coefficient of 1.07;

[0113] The ratio is the ratio of the red flame proportion to the blue flame proportion.

[0114] In the embodiment of the present invention, the preset ratio is 0.9, but the above value is not limited thereto, and those skilled in the art may also adjust the value according to actual needs.

[0115] Specifically, the image analysis module determines the eligibility of the adjustment method based on the comparison result of the current blue flame area with the blue flame area of ​​the fire image taken by the industrial camera a few seconds later, under the condition that the current fire is developing slowly;

[0116] If the current blue flame area is less than or equal to the blue flame area after a few seconds, it is determined that the adjustment method is qualified;

[0117] If the current blue flame region area is larger than the blue flame region area after a few seconds, it is determined that the adjustment method is unqualified.

[0118] Specifically, the startup execution module determines the regional adjustment coefficient optimization method based on the comparison result of the relative difference between the current blue flame area and the blue flame area after a few seconds and the first preset relative difference of 0.05 under the condition that the adjustment method is determined to be unqualified;

[0119] If the relative difference is less than or equal to the first preset relative difference, determine to increase the first area adjustment coefficient 0.97 to a corresponding value by optimizing the first preset area adjustment coefficient 1.15;

[0120] If the relative difference is greater than the first preset relative difference, determine to increase the second area adjustment coefficient 0.93 to a corresponding value by optimizing the second preset area adjustment coefficient 1.25;

[0121] The relative difference is the relative difference between the current blue flame region area and the blue flame region area after a few seconds.

[0122] In the embodiment of the present invention, the first preset relative difference value is 0.05, but the above value is not limited thereto, and those skilled in the art may also adjust the value according to actual needs.

[0123] In an embodiment of the present invention, the increased regional adjustment coefficient is set to Ez, and Ez=Ei×Kj is set, wherein Ei represents the adjustment coefficient of the i-th region, i is 1 or 2, E1 represents the first region adjustment coefficient 0.97, E2 represents the second region adjustment coefficient 0.93, Kj represents the j-th preset region optimization adjustment coefficient, j is 1 or 2, K1 represents the first preset region optimization adjustment coefficient 1.15, and K2 represents the second preset region optimization adjustment coefficient 1.25.

[0124] Specifically, the image analysis module determines the eligibility of the adjustment method based on the comparison result of the current red flame area with the red flame area of ​​the fire image taken by the industrial camera a few seconds later under the condition that the current fire is developing rapidly;

[0125] If the current red flame area is less than or equal to the red flame area after a few seconds, it is determined that the adjustment method is qualified;

[0126] If the current red flame region area is larger than the red flame region area after a few seconds, it is determined that the adjustment method is unqualified.

[0127] Specifically, the startup execution module determines the injection rate optimization method based on the comparison result of the relative difference between the current red flame area and the red flame area after a few seconds and the second preset relative difference of 0.1 under the condition that the adjustment method is determined to be unqualified;

[0128] If the relative difference is greater than the first preset relative difference and less than or equal to the second preset relative difference, it is determined to increase the first injection rate adjustment coefficient 1.05 to a corresponding value by using the first preset injection optimization adjustment coefficient 1.10;

[0129] If the relative difference is greater than the second preset relative difference, it is determined that the second injection rate adjustment coefficient 1.07 is increased to a corresponding value by using the second preset injection optimization adjustment coefficient 1.20;

[0130] The relative difference is the relative difference between the current red flame region area and the red flame region area after a few seconds.

[0131] In the embodiment of the present invention, the second preset relative difference is set to 0.1, but the value is not limited thereto, and those skilled in the art may also adjust the value according to actual needs.

[0132] In an embodiment of the present invention, the increased injection rate coefficient is set to Fz, and Fz=Fn×Qm is set, wherein Fn represents the nth injection rate adjustment coefficient, n is 1 or 2, F1 represents the first injection rate adjustment coefficient 1.05, F2 represents the second injection rate adjustment coefficient 1.07, Qm represents the mth preset injection optimization adjustment coefficient, m is 1 or 2, Q1 represents the first preset injection optimization adjustment coefficient 1.10, and Q2 represents the second preset injection optimization adjustment coefficient 1.20.

[0133] Specifically, the present invention intelligently adjusts the fire extinguishing strategy, including the fire extinguishing area and the injection rate, by the proportion of flame colors in the fire image and its changing trend. If the fire development does not meet expectations, the adjustment coefficient is further optimized according to the change in the flame area to accurately control the fire, thereby achieving real-time monitoring of the fire development and accurate adjustment of the fire extinguishing strategy, ensuring the efficiency and effect of fire extinguishing. By continuously optimizing the adjustment coefficient, it is possible to respond to changes in the fire more quickly, thereby improving the efficiency of fire extinguishing of skid-mounted transformers.

[0134] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0135] The above description is only a preferred embodiment of the present invention and is 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 replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A 110kV / 220kV skid-mounted transformer device for a substation, characterized in that: include: The skid body includes a transformer room, an automatic control room and a radiator room, which are used to carry the detection mechanism, the fire extinguishing mechanism, the heat dissipation mechanism and the control mechanism, wherein: A detection mechanism, which includes a temperature sensor and a smoke sensor arranged on a transformer housing in the transformer room, and a plurality of monitoring devices arranged on a side wall in the transformer room; A fire extinguishing mechanism, comprising a fire extinguishing cabinet disposed at one side of the transformer room for storing fire extinguishing materials, and a plurality of nozzles disposed at the upper part of the transformer room for spraying fire extinguishing materials into the transformer room; The control mechanism is arranged in the automatic control room and includes: A data acquisition module, which is used to acquire temperature data, smoke data and monitoring images of several monitoring devices detected by the detection mechanism; A data analysis module, connected to the data acquisition module, for analyzing the temperature data and smoke data; An image analysis module connected to the data analysis module is used to determine the activation mode of the fire extinguishing system based on the urgency evaluation value obtained from the fire image, and to determine the fire extinguishing mode of the fire extinguishing system according to the fire spread speed evaluation value or the importance evaluation value of the electrical components around the fire area, to determine the development trend of the fire based on the comparison result of the red flame ratio and the blue flame ratio in the current fire image, and to determine the eligibility of the adjustment mode according to the current blue flame area or the current red flame area under the condition of the corresponding fire development trend; A startup execution module is connected to the image analysis module to determine the eligibility of the time used to extinguish the current fire area according to the current environmental evaluation value under the condition of the corresponding startup mode, and to determine whether to reduce the fire extinguishing area range or increase the injection rate according to the ratio of the current environmental evaluation value to the corresponding preset environmental evaluation value under the condition that the time used to extinguish the current fire area is unqualified, and to determine the regional adjustment coefficient optimization mode or the injection rate optimization mode according to the relative difference between the current blue flame area area and the blue flame area area after a few seconds, or the relative difference between the current red flame area area and the red flame area after a few seconds under the condition that the adjustment mode is unqualified.

2. The 110kV / 220kV skid-mounted transformer device for a substation according to claim 1, characterized in that: The image analysis module determines an urgency evaluation value based on the analysis of the fire image, determines to start the fire extinguishing mechanism in the first starting mode based on a comparison result that the urgency evaluation value is less than or equal to a preset urgency evaluation value, and determines the number of activated sprinklers to perform regional fire extinguishing or activates all sprinklers to perform covering fire extinguishing based on a comparison result between the fire spread speed evaluation value and a preset fire spread speed evaluation value.

3. The 110kV / 220kV skid-mounted transformer device for a substation according to claim 1, characterized in that: The image analysis module determines an urgency evaluation value based on the analysis of the fire image, determines to start the fire extinguishing mechanism in the second starting mode based on the comparison result that the urgency evaluation value is greater than a preset urgency evaluation value, and determines the number of enabled sprinklers to perform regional fire extinguishing or enables all sprinklers to perform covering fire extinguishing based on the comparison result between the importance evaluation value of the electrical component and the preset importance evaluation value.

4. The 110kV / 220kV skid-mounted transformer device for a substation according to claim 2, characterized in that: The startup execution module determines, under the condition of determining the corresponding startup mode, that the time used to extinguish the current fire area is unqualified based on the comparison result that the current environmental evaluation value is less than or equal to the preset environmental evaluation value, and determines an adjustment mode of reducing the fire extinguishing area range with the regional adjustment coefficient based on the comparison result that the ratio is less than or equal to the preset ratio, wherein the ratio is the ratio of the current environmental evaluation value to the preset environmental evaluation value.

5. The 110kV / 220kV skid-mounted transformer device for a substation according to claim 3, characterized in that: The startup execution module determines, under the condition of determining the corresponding startup mode, that the time used to extinguish the current fire area is unqualified based on the comparison result that the current environmental evaluation value is less than or equal to the preset environmental evaluation value, and determines an adjustment mode of increasing the injection rate of the nozzle with the injection rate adjustment coefficient based on the comparison result that the ratio is greater than the preset ratio, wherein the ratio is the ratio of the current environmental evaluation value to the preset environmental evaluation value.

6. The 110kV / 220kV skid-mounted transformer device for a substation according to claim 4, characterized in that: The image analysis module determines, under the condition of adjusting the fire extinguishing area range or adjusting the nozzle spray rate, that the current fire is developing slowly based on the comparison result that the red flame ratio in the current fire image is less than or equal to the blue flame ratio, and determines that the adjustment method is unqualified based on the comparison result that the current blue flame area is larger than the blue flame area a few seconds later.

7. The 110kV / 220kV skid-mounted transformer device for a substation according to claim 6, characterized in that: The startup execution module determines, under the condition that the adjustment method is determined to be unqualified, to increase the corresponding regional adjustment coefficient by the corresponding preset regional optimization adjustment coefficient based on the comparison result that the relative difference between the current blue flame area and the blue flame area after a few seconds is less than or equal to the first preset relative difference.

8. The 110kV / 220kV skid-mounted transformer device for a substation according to claim 5, characterized in that: The image analysis module determines, under the condition of determining the adjustment method for adjusting the fire extinguishing area range or adjusting the nozzle spray rate, that the current fire is developing rapidly based on the comparison result that the red flame ratio in the current fire image is greater than the blue flame ratio, and determines that the adjustment method is unqualified based on the fact that the current blue flame area is greater than the blue flame area a few seconds later.

9. The 110kV / 220kV skid-mounted transformer device for a substation according to claim 8, characterized in that: The startup execution module determines to optimize the injection rate based on a comparison result of a relative difference between the current red flame area and the red flame area after a few seconds and a second preset relative difference when determining that the adjustment mode is unqualified.

10. The 110kV / 220kV skid-mounted transformer device for a substation according to claim 9, characterized in that: The startup execution module determines, under the condition of determining that the injection rate is to be optimized, to increase the corresponding injection rate adjustment coefficient by the corresponding preset injection optimization adjustment coefficient based on a comparison result of a relative difference between the current red flame area and the red flame area after a few seconds and a second preset relative difference.

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