A transformer respirator state adjustment and monitoring device

Abstract

The present application discloses a transformer respirator state adjustment and monitoring device, comprising: a device body, a processor, an adjustment component and a monitoring component; the adjustment component comprises: a heater; the heater is used to heat the adsorbent; the heater is arranged in the device body; the monitoring component comprises: an internal humidity sensor; the internal humidity sensor is used to sense the internal humidity value R inside the device body in real time 内 The processor is electrically connected to the heater and the internal humidity sensor to obtain and store R 内 , and compare R 内A With R 内a The size of R 内a With R 内A When the difference between R and 内A is the internal humidity value at the time point before the preset period, R 内a is the current internal humidity value. The processor can determine the exhalation and inhalation state of the respirator according to the internal humidity value, thereby controlling the start and stop of the heater to realize the monitoring and adjustment of the respirator state.

Description

Technical Field

[0001] The present application relates to the technical field of transformer respirators, and in particular to a transformer respirator state adjustment and monitoring device. Background Art

[0002] The respirator is an auxiliary safety protection device for oil-immersed transformers. When the oil temperature inside the transformer increases and the oil volume increases, the air in the transformer oil pillow will be compressed. In order to maintain the pressure balance inside the transformer, part of the air in the oil pillow will be discharged into the atmosphere through the respirator. Correspondingly, when the oil temperature decreases and the oil volume decreases, the outside air will enter the transformer through the respirator. The inside of the respirator is filled with adsorbents such as silica gel particles; the adsorbent can keep the inside of the transformer dry. Therefore, the drying capacity of the adsorbent is related to the life of the main transformer oil pillow capsule.

[0003] Traditional respirators often require frequent replacement of adsorbents to ensure the drying capacity of the respirator. However, this operation and maintenance method is labor-intensive, especially in areas with complex terrain such as remote mountainous areas or humid areas. The inconvenience of replacing adsorbents further increases the workload. Summary of the invention

[0004] In view of this, the purpose of the present application is to provide a transformer respirator state adjustment and monitoring device to solve the problem that the existing respirator needs to frequently replace silica gel particles.

[0005] In order to achieve the above technical purpose, the present application provides a transformer respirator state adjustment and monitoring device, including: a device body, a processor, an adjustment component and a monitoring component;

[0006] The adjustment assembly includes: a heater;

[0007] The heater is used to heat the adsorbent;

[0008] The heater is disposed in the device body;

[0009] The monitoring component includes: an internal humidity sensor;

[0010] The internal humidity sensor is used to sense the internal humidity value R inside the device body in real time. 内 ;

[0011] The processor is electrically connected to the heater and the internal humidity sensor for acquiring and storing R 内 , and compare R 内A With R 内a The size of R 内a With R 内A When the difference is greater than a preset internal difference, the heater is controlled to stop heating;

[0012] Among them, R 内A is the internal humidity value at the time point before the preset period, R 内a is the current internal humidity value.

[0013] Further, the monitoring component also includes: an external humidity sensor;

[0014] The external humidity sensor is used to sense the external humidity value R outside the device body in real time. 外 ;

[0015] The processor is electrically connected to the external humidity sensor and is also used to obtain R 外 , and compare R 内 With R 外 The size of R 外 With R 内 When the difference is less than the preset heterodyne value, an abnormal signal is output.

[0016] Furthermore, the monitoring component further comprises: an internal pressure sensor and an external pressure sensor;

[0017] The internal pressure sensor is used to sense the internal pressure value inside the device body in real time;

[0018] The external pressure sensor is used to sense the external pressure value inside the device body in real time;

[0019] The processor is electrically connected to the internal pressure sensor and the external pressure sensor, and is used to obtain the internal pressure value and the external pressure value, and determine the current breathing gas state of the ventilator according to the magnitude of the internal pressure value and the external pressure value.

[0020] Further, the adsorbent is silica gel particles;

[0021] The monitoring component also includes: a light color sensor;

[0022] The light color sensor is used to sense the light color signal of the adsorbent in real time;

[0023] The processor is electrically connected to the light color sensor and is used to obtain the light color signal and determine the drying capacity state of the adsorbent according to the light color signal.

[0024] Furthermore, the monitoring component further comprises: a temperature sensor;

[0025] The temperature sensor is used to sense the temperature value of the adsorbent in real time;

[0026] The processor is electrically connected to the temperature sensor and is used to obtain a temperature value.

[0027] Further, a voltage detector is included;

[0028] The voltage detector is used to detect the input voltage value of the device bus in real time;

[0029] The processor is electrically connected to the voltage detector, and is used for obtaining the input voltage value, and outputting a power supply abnormality signal when the input voltage value is less than a preset voltage value.

[0030] Further, it also includes a monitoring box;

[0031] The processor is arranged in the monitoring box;

[0032] The monitoring box is detachably connected to the device body.

[0033] Further, the monitoring component also includes: a breathing status indicator light;

[0034] The breathing status indicator light is arranged outside the device body;

[0035] The processor is electrically connected to the breathing status indicator light and is used to adjust the color of the ventilator status indicator light according to the breathing status of the ventilator.

[0036] Further, it also includes Cato;

[0037] The card holder is fixedly connected to the transformer by external bolts, and a card slot is provided in the card holder that penetrates in the horizontal direction;

[0038] The device body is slidably arranged in the slot along a horizontal direction and is fixedly connected to the transformer via internal bolts.

[0039] Further, it also includes a display;

[0040] The display is electrically connected to the processor.

[0041] It can be seen from the above technical scheme that the present application provides a transformer respirator state adjustment and monitoring device, including: a device body, a processor, an adjustment component and a monitoring component; the adjustment component includes: a heater; the heater is used to heat the adsorbent; the heater is arranged in the device body; the monitoring component includes: an internal humidity sensor; the internal humidity sensor is used to sense the internal humidity value R inside the device body in real time 内 The processor is electrically connected to the heater and the internal humidity sensor for obtaining and storing R 内 , and compare R 内A With R 内a The size of R 内a With R 内AWhen the difference between R and R is greater than the preset internal difference, the heater is controlled to stop heating; wherein, R 内A is the internal humidity value at the time point before the preset period, R 内a The internal humidity value is obtained through the internal humidity sensor, so that the processor can judge the exhalation and inhalation state of the respirator according to the internal humidity value, thereby controlling the start and stop of the heater, realizing the monitoring and adjustment of the respirator state, and effectively solving the problem that the existing respirator needs to frequently replace the silica gel particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0043] Figure 1 A schematic diagram of the overall structure of a transformer respirator state adjustment and monitoring device provided in an embodiment of the present application when the device body is connected to a transformer;

[0044] Figure 2 A schematic diagram of the overall structure of a transformer respirator state adjustment and monitoring device provided in an embodiment of the present application when the device body is separated from the transformer;

[0045] In the figure: 10, device body; 20, processor; 30, heater; 40, monitoring component; 50, transformer; 60, monitoring box; 70, display; 80, card tray; 41, internal humidity sensor; 42, external humidity sensor; 43, internal pressure sensor; 44, external pressure sensor; 45, light color sensor; 46, silicone humidity sensor; 47, temperature sensor; 48, breathing status indicator light; 61, fault indicator light; 62, reset button; 81, external bolt; 82, internal bolt; 83, card slot. DETAILED DESCRIPTION

[0046] The technical solutions of the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments in the embodiments of the present application are within the scope of protection requested by the present application.

[0047] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0048] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a replaceable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0049] See also Figure 1 A transformer respirator state adjustment and monitoring device provided in an embodiment of the present application includes: a device body 10, a processor 20, an adjustment component and a monitoring component 40. The adjustment component includes: a heater 30; the heater 30 is arranged in the device body 10, and is used to heat the adsorbent 50 in the device body 10, thereby reducing the humidity of the adsorbent 50 and adjusting the drying capacity state of the adsorbent.

[0050] The monitoring component 40 includes: an internal humidity sensor 41; the internal humidity sensor 41 is used to sense the internal humidity value R of the device body 10 in real time. 内 The processor 20 is electrically connected to the heater 30 and the internal humidity sensor 41 for acquiring and storing R 内 ; R 内 Including multiple, including the current moment of the internal humidity value and the historical monitoring of the internal humidity value. In this embodiment, compared with the current moment, the internal humidity value at the time point before the preset period is recorded as R 内A For example, it can be the internal humidity value measured at the time node two minutes before the current time; and the current internal humidity value is several R 内a .

[0051] The processor 20 is used to compare R 内A With R 内a size, and use R 内a Subtract R 内A Calculate R 内a With R 内AThe difference between 内a With R 内A When the difference is greater than the preset internal difference, the processor 20 controls the heater 30 to stop heating.

[0052] Specifically, the preset internal difference value is a positive value. 内a With R 内A When the difference between R and R is less than or equal to the preset internal difference, it means that the change degree of the humidity value in the current device body 10 over time is within the preset range, indicating that the respirator is in the exhalation state; when R 内a With R 内A When the difference is greater than the preset internal difference, it indicates that the humidity value in the current device body 10 has increased fluctuations, indicating that the respirator is in the inhalation state, and the processor 20 outputs a stop heating signal to the heater 30. The signal receiver inside the heater 30 stops heating after receiving the stop heating signal, so as to prevent the moisture generated by heating from entering the internal device along with the inhalation of the respirator.

[0053] It should be noted that the processor 20 is also used to record the inhalation time period T and the exhalation time period t of each inhalation and exhalation of the ventilator after determining the breathing state of the ventilator; specifically, the ventilator generally exhales and inhales at a fixed time period, for example, exhales from 18:00 to 20:30. When it is determined that the time point of a certain exhalation deviates from the historical exhalation time period t by more than a preset range, the time is corrected.

[0054] In other embodiments, the monitoring component 20 further includes: an external humidity sensor 42; the external humidity sensor 42 is used to sense the external humidity value R outside the device body in real time. 外 The processor 20 is electrically connected to the external humidity sensor 42 and is also used to obtain R 外 , and compare R 内 With R 外 The size of R 外 With R 内 When the difference is less than the preset heterodyne value, an abnormal signal is output.

[0055] Specifically, the processor 20 converts the current R 内 With R 外 Compare and get R 外 Subtract R 内 When R 外 With R 内 When the difference between R and R is greater than the preset external difference, it indicates that the adsorbent and the heater 30 can be used normally, and the water vapor of the adsorbent can be discharged during the heating process and flow out of the respirator along with the exhaled airflow. 外 With R 内When the difference is less than the preset external difference value, it indicates that the adsorbent or the heater 30 is abnormal. For this reason, the processor 20 outputs an abnormal signal to the control terminal of the staff to remind the staff to perform maintenance.

[0056] In a further improved embodiment, the monitoring component 40 further includes: an internal pressure sensor 43 and an external pressure sensor 44. The internal pressure sensor 43 and the internal humidity sensor 41 can be both disposed outside the device body 10, and the sensing probe is extended into the device body 10. In addition, the internal humidity sensor 41, the external humidity sensor 42, the internal pressure sensor 43, and the external pressure sensor 44 can all be covered with a waterproof shell.

[0057] The internal pressure sensor 43 is used to sense the internal pressure value inside the device body 10 in real time; the external pressure sensor 44 is used to sense the external pressure value inside the device body 10 in real time. The processor 20 is electrically connected to the internal pressure sensor 43 and the external pressure sensor 44, and is used to obtain the internal pressure value and the external pressure value, and judge the current breathing gas state of the respirator according to the magnitude of the internal pressure value and the external pressure value.

[0058] Specifically, the processor 20 uses pressure difference comparison. When the external pressure value is greater than the internal pressure value, it indicates that the respirator is in the inhalation state; when the external pressure value is greater than the internal pressure value, it indicates that the respirator is in the exhalation state. By combining pressure difference comparison with humidity comparison, the exhalation and inhalation states of the respirator can be judged more accurately. And when the result of the pressure difference comparison is inconsistent with the structure of the humidity comparison, it indicates that the component of the monitoring component 40 may have a fault, so a fault signal can be issued to remind the staff to repair it.

[0059] In other embodiments, the adsorbent is silica gel particles. The monitoring component 40 further includes: a light color sensor 45; the light color sensor 45 is used to sense the light color signal of the adsorbent in real time; the processor 20 is electrically connected to the light color sensor 40, and is used to obtain the light color signal and judge the drying capacity state of the adsorbent according to the light color signal.

[0060] Specifically, the silica gel particles change color as they absorb moisture. When the color of the silica gel particles is dark blue, it indicates that the silica gel particles are relatively dry; when the color of the silica gel particles is pink or transparent, it indicates that the silica gel particles are relatively dry. After the light color sensor 45 detects the color of the silica gel particles, it converts it into a digital light color signal and sends it to the processor 20, so that the processor 20 can judge the drying capacity of the silica gel particles according to their color, and provide a criterion for starting and stopping the heater 30.

[0061] It should be noted that the monitoring component 40 may also include a silica gel humidity sensor for real-time monitoring of the humidity value on the surface of the silica gel particles, so that the processor 20 can determine the state of the silica gel particles.

[0062] Furthermore, the monitoring component 40 also includes: a temperature sensor 47; the temperature sensor 47 is used to sense the temperature value of the adsorbent in real time; the processor 20 is electrically connected to the temperature sensor to obtain the temperature value.

[0063] Specifically, the temperature sensor can be a thermistor attached to the adsorbent, which is used to sense the temperature value of the adsorbent, so that the processor 20 can determine whether the adsorbent is heated to the specified temperature based on the temperature value, and calculate the current heating time of the adsorbent, and then compare the current heating time with the historical heating time. When the difference between the current heating time and the historical heating time exceeds a preset time difference, it indicates that there may be a problem with the adsorbent or the heater, and a maintenance signal is output to the control terminal.

[0064] Furthermore, it also includes a voltage detector; the voltage detector is used to detect the input voltage value of the device bus in real time; the processor 20 is electrically connected to the voltage detector, used to obtain the input voltage value, and output a power supply abnormality signal when the input voltage value is less than a preset voltage value.

[0065] Specifically, when the input voltage value is less than the preset voltage value, it indicates that the power supply fails, and the processor 20 cuts off the heater 30, switches to battery power, and outputs a power supply abnormality signal to remind the staff to repair.

[0066] Furthermore, it also includes a monitoring box 60; the processor 20 is arranged in the monitoring box 60; the monitoring box 60 is detachably connected to the device body 10, for example, it can be a snap connection or a screw connection, so that when disassembly or maintenance is required, the monitoring box 60 can be removed.

[0067] The monitoring box 60 is also provided with a fault indicator light 61 and a reset button 62. Both the fault indicator light 61 and the reset button 62 are electrically connected to the processor 20. The fault indicator light 61 is used to light up when the components included in the monitoring component 40 need to be repaired. The reset button 62 is used to restart the processor 20 when it stops and gets stuck.

[0068] Furthermore, the monitoring component 40 also includes: a breathing status indicator light 48; the breathing status indicator light 48 is arranged outside the device body 10; the processor 20 is electrically connected to the breathing status indicator light 48, and is used to adjust the color of the ventilator status indicator light 48 according to the breathing status of the ventilator.

[0069] The breathing state indicator light 96 can be a three-pin dual-color LED indicator light, and can light up in red and green; red represents the exhalation state, and green represents the inhalation state. The processor determines the current breathing state as the exhalation gas state by judging the air pressure and humidity of the respirator, and outputs an electrical signal to the breathing state indicator light 48, making it light up in red; otherwise, it is in the inhalation state, making it light up in green. At the same time, it is convenient for the operation and maintenance personnel to check the breathing state of the transformer at night.

[0070] Furthermore, a quick data reading interface is provided on the device body 10, which is a port for connecting a USB, TF, or SD card slot, so that the staff can read data easily.

[0071] In other embodiments, a display 70 is further included; the display 70 is electrically connected to the processor 20 and is used to display the internal and external humidity, internal and external air pressure, and heating history data of the respirator.

[0072] In the examples, see Figure 1 and Figure 2 , and also includes a tray 80; the tray 80 is fixedly connected to the transformer 50 by an external bolt 81, and a slot 83 penetrating in the horizontal direction is provided in the tray 80; the device body 10 is slidably arranged in the slot 83 in the horizontal direction, and is fixedly connected to the transformer 50 by an internal bolt 82.

[0073] When the device body 10 needs to be disassembled, the inner bolt 82 can be removed to separate the device body 10 from the transformer, and the card holder 80 can support the device body 10 to prevent it from falling. Then the device body 10 can be disassembled by translating the device body 10.

[0074] The above are only preferred embodiments of the present application and are not intended to limit the present invention. Although the present application has been described in detail with reference to the examples, those skilled in the art can still modify the technical solutions recorded in the aforementioned examples or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A transformer respirator state adjustment and monitoring device, characterized in that: include: Device body, processor, adjustment component and monitoring component; The adjustment assembly includes: a heater; The heater is used to heat the adsorbent; The heater is disposed in the device body; The monitoring component includes: an internal humidity sensor; The internal humidity sensor is used to sense the internal humidity value R inside the device body in real time. 内 ; The processor is electrically connected to the heater and the internal humidity sensor for acquiring and storing R 内 , and compare R 内A With R 内a The size of R 内a With R 内A When the difference is greater than a preset internal difference, the heater is controlled to stop heating; Among them, R 内A is the internal humidity value at the time point before the preset period, R 内a is the current internal humidity value.

2. The transformer respirator state adjustment and monitoring device according to claim 1 is characterized in that: The monitoring assembly also includes: an external humidity sensor; The external humidity sensor is used to sense the external humidity value R outside the device body in real time. 外 ; The processor is electrically connected to the external humidity sensor and is also used to obtain R 外 , and compare R 内 With R 外 The size of R 外 With R 内 When the difference is less than the preset heterodyne value, an abnormal signal is output.

3. The transformer respirator state adjustment and monitoring device according to claim 2 is characterized in that: The monitoring assembly also includes: an internal pressure sensor and an external pressure sensor; The internal pressure sensor is used to sense the internal pressure value inside the device body in real time; The external pressure sensor is used to sense the external pressure value inside the device body in real time; The processor is electrically connected to the internal pressure sensor and the external pressure sensor, and is used to obtain the internal pressure value and the external pressure value, and determine the current breathing gas state of the ventilator according to the magnitude of the internal pressure value and the external pressure value.

4. The transformer respirator state adjustment and monitoring device according to any one of claims 1 to 3, characterized in that: The adsorbent is silica gel particles; The monitoring component also includes: a light color sensor; The light color sensor is used to sense the light color signal of the adsorbent in real time; The processor is electrically connected to the light color sensor and is used to obtain the light color signal and determine the drying capacity state of the adsorbent according to the light color signal.

5. The transformer respirator state adjustment and monitoring device according to claim 1 is characterized in that: The monitoring component also includes: a temperature sensor; The temperature sensor is used to sense the temperature value of the adsorbent in real time; The processor is electrically connected to the temperature sensor and is used to obtain a temperature value.

6. The transformer respirator state adjustment and monitoring device according to claim 1, characterized in that: Also included is a voltage detector; The voltage detector is used to detect the input voltage value of the device bus in real time; The processor is electrically connected to the voltage detector, and is used for obtaining the input voltage value, and outputting a power supply abnormality signal when the input voltage value is less than a preset voltage value.

7. The transformer respirator state adjustment and monitoring device according to claim 1 is characterized in that: Also includes monitoring box; The processor is arranged in the monitoring box; The monitoring box is detachably connected to the device body.

8. The transformer respirator state adjustment and monitoring device according to claim 1 is characterized in that: The monitoring component also includes: a breathing status indicator light; The breathing status indicator light is arranged outside the device body; The processor is electrically connected to the breathing status indicator light and is used to adjust the color of the ventilator status indicator light according to the breathing status of the ventilator.

9. The transformer respirator state adjustment and monitoring device according to claim 1, characterized in that: Also included is Cato; The card holder is fixedly connected to the transformer by external bolts, and a card slot is provided in the card holder that penetrates in the horizontal direction; The device body is slidably arranged in the slot along a horizontal direction and is fixedly connected to the transformer via internal bolts.

10. The transformer respirator state adjustment and monitoring device according to claim 1, characterized in that: Also includes a display; The display is electrically connected to the processor.

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