Automatic monitoring control device and method for transformer and transformer breather

Abstract

The embodiment of the present application relates to a kind of transformer and the automatic monitoring control device and method of transformer breather, the device is connected with first transformer breather and second transformer breather respectively, the automatic monitoring control device includes first passage, second passage, third passage and valve automatic switching control mechanism, valve automatic switching control mechanism includes dehumidification exhaust switching component and detection element, detection element is set on third passage, first passage and second passage are connected through piston switching with third passage through connection.The device detects the humidity data of first passage or second passage by detection element, according to humidity data, by dehumidification exhaust switching component, the water vapor discharge of silica gel particle dehumidification in transformer breather is realized and switched to another transformer breather work, greatly improve the silica gel use efficiency of transformer breather, reduce the workload of breather tour maintenance, ensure the safe and reliable operation of transformer.

Description

Technical Field

[0001] This invention relates to the field of transformer breather technology, and in particular to an automatic monitoring and control device and method for transformers and transformer breathers. Background Technology

[0002] With the continuous development of power systems, the number of oil-immersed transformers is constantly increasing. When the load decreases, the oil temperature in the oil-immersed transformer drops, and the volume of the internal oil shrinks. Under the action of air pressure difference, outside air passes through the oil seal of the breather and enters the desiccant for drying, filtering out moisture and impurities from the air, and then enters the oil conservator bladder. This is the air intake process of the transformer breather. If the transformer breather does not thoroughly filter moisture, water will accumulate in the bladder of the oil conservator. Long-term water accumulation in the bladder will seriously affect the sealing effect of its bladder wall, thus threatening the normal operation of the entire transformer. Therefore, the replacement of silica gel desiccant particles in the transformer breather plays a very important role in the normal operation of the entire transformer. The silica gel particles in the transformer breather will change color after absorbing moisture for a long time. According to management regulations, the silica gel must be replaced when more than 2 / 3 of it is discolored to ensure the moisture absorption capacity of the desiccant. This replacement and maintenance will increase with the continuous increase in the number of transformers.

[0003] The silica gel particles in existing transformer breathers are non-renewable and need to be replaced regularly, requiring the entire transformer breather to be disassembled for replacement. Furthermore, the disassembly and assembly process of transformer breathers is complex and requires advanced technical skills. During disassembly and assembly, the oil cup is prone to tipping over or being damaged. Additionally, prolonged exposure of the silica gel to air during disassembly and assembly can cause it to degrade, resulting in time-consuming and labor-intensive maintenance of existing transformer breathers. Summary of the Invention

[0004] This invention provides an automatic monitoring and control device and method for transformers and transformer breathers, which solves the technical problems of large workload in the maintenance of existing transformer breathers and the inability to recycle silica gel particles.

[0005] To achieve the above objectives, the embodiments of the present invention provide the following technical solutions:

[0006] An automatic monitoring and control device for a transformer breather is provided, which is connected to a first transformer breather and a second transformer breather respectively. The automatic monitoring and control device includes a first channel connected to the first transformer breather, a second channel connected to the second transformer breather, a third channel, and an automatic valve switching control mechanism. The automatic valve switching control mechanism includes a dehumidification and exhaust switching component and a detection element. The detection element is disposed on the third channel. The dehumidification and exhaust switching component is disposed on the first channel and the second channel. The first channel and the second channel are integrally formed pipes. The first channel and the second channel are connected to the third channel through a piston switching mechanism.

[0007] The detection element is used to detect the humidity data of the first channel or the second channel corresponding to the operation of the first transformer breather or the second transformer breather;

[0008] The dehumidification and exhaust switching component is used to switch the dehumidified gas from the silica gel particles of the first transformer breather or the second transformer breather to the first channel or the second channel for exhaust based on the detected humidity data.

[0009] Preferably, the dehumidification and exhaust switching assembly includes a drive element, a first connecting rod, a second connecting rod, a first chuck, a first elastic element, a first sealing element, a first isolation element, a first exhaust pipe, a second exhaust pipe, a second chuck, a second elastic element, a second sealing element, and a second isolation element. The output end of the drive element is connected to the first connecting rod, and the first connecting rod is connected to the second connecting rod. The first chuck, the first elastic element, and the first sealing element are sleeved on the first connecting rod and disposed on the first channel. The first exhaust pipe is connected through the first channel and is located between the first chuck and the drive element. The two ends of the first elastic element are respectively connected to the first chuck and the first sealing element. The second isolation element is connected to the end of the second connecting rod. The two ends of the second elastic element are respectively connected to the second sealing element and the second chuck. The second chuck, the second elastic element, the second sealing element, and the second isolation element are disposed on the second channel. The second exhaust pipe is threadedly connected to the second channel. The first isolation element, the second isolation element, the first chuck, and the second chuck are all provided with through holes. The first sealing element and the second sealing element are respectively used to seal the through holes of the corresponding first isolation element and the second isolation element.

[0010] If the humidity data detected in the first channel is greater than the humidity set value, the driving element is controlled to drive the first connecting rod and the second connecting rod to move towards the first exhaust pipe, causing the first sealing element to push the first elastic element. The first elastic element causes the first sealing element to move away from the first isolation element, and the through hole of the first isolation element opens, so that the water vapor heated and dried by the first transformer breather enters the first exhaust pipe through the first channel, the through hole of the first isolation element, and the through hole of the first chuck and is discharged. The piston moves to the first channel so that the second channel is connected to the third channel.

[0011] If the humidity data detected in the second channel is greater than the humidity set value, the driving element is controlled to drive the first connecting rod and the second connecting rod to move towards the second exhaust pipe, causing the second sealing element to push the second elastic element. The second elastic element causes the second sealing element to move away from the second isolation element, and the through hole of the second isolation element opens, so that the water vapor heated and dried by the second transformer breather enters the second exhaust pipe through the second channel, the through hole of the second isolation element, and the through hole of the second chuck and is discharged. The piston moves to the second channel so that the first channel is connected to the third channel.

[0012] Preferably, the drive element is fitted with a protective cover for protection.

[0013] Preferably, the piston is movably sleeved on the second connecting rod, and the piston is provided with a fixing element for fixing the piston on the second connecting rod.

[0014] Preferably, a rubber ring for compression sealing is provided in the middle of the piston.

[0015] Preferably, the automatic monitoring and control device for the transformer breather includes a heating element for dehumidifying the silica gel particles in the first transformer breather and the second transformer breather, and the heating element is provided on both the first transformer breather and the second transformer breather.

[0016] Preferably, both the first transformer breather and the second transformer breather are provided with pipes that are connected to the corresponding first and second channels.

[0017] Preferably, the detection element is a humidity sensor.

[0018] The present invention also provides an automatic monitoring and control method for a transformer breather, applied to the aforementioned automatic monitoring and control device for a transformer breather, comprising the following steps:

[0019] Acquire humidity data from the first or second channel;

[0020] If the humidity data is greater than the humidity set value, the valve automatic switching control mechanism controls the first or second channel corresponding to the humidity data to discharge the water vapor output from the first transformer breather or the second transformer breather.

[0021] The present invention also provides a transformer, including the automatic monitoring and control device for the transformer breather described above.

[0022] As can be seen from the above technical solutions, the embodiments of the present invention have the following advantages: The automatic monitoring and control device and method for transformers and transformer breathers provided by the embodiments of the present invention are respectively connected to a first transformer breather and a second transformer breather. The automatic monitoring and control device includes a first channel connected to the first transformer breather, a second channel connected to the second transformer breather, a third channel, and a valve automatic switching control mechanism. The valve automatic switching control mechanism includes a dehumidification and exhaust switching component and a detection element. The detection element is disposed on the third channel. The dehumidification and exhaust switching component is disposed on the first channel and the second channel. The first channel and the second channel are integrally formed pipes. The first channel and the second channel are connected to the third channel through a piston switching mechanism. The automatic monitoring and control device for this transformer breather detects humidity data from the first or second channel using a detection element. Based on the humidity data, it uses a dehumidification and exhaust switching component to discharge water vapor from the silica gel particles in the transformer breather and switch to another transformer breather. This greatly improves the silica gel utilization efficiency of the transformer breather, reduces the workload of breather inspection and maintenance, and ensures the safe and reliable operation of the transformer. It avoids the shortcomings of existing transformers that require maintenance after the silica gel particles in a single breather become ineffective and that silica gel cannot be recycled. It solves the technical problems of large maintenance workload and non-recyclable silica gel particles in existing transformer breathers. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional structural diagram of the automatic monitoring and control device for the transformer breather according to an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the automatic valve switching control mechanism in the automatic monitoring and control device for the transformer breather according to an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the dehumidification and exhaust switching component in the automatic monitoring and control device for the transformer breather according to an embodiment of the present invention. Detailed Implementation

[0027] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0028] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of the present invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention according to the specific circumstances.

[0031] This application provides an automatic monitoring and control device and method for transformers and transformer breathers, which solves the technical problems of large workload in the maintenance of existing transformer breathers and the inability to recycle silica gel particles.

[0032] Figure 1 This is a three-dimensional structural diagram of the automatic monitoring and control device for the transformer breather according to an embodiment of the present invention. Figure 2 This is a schematic diagram of the automatic valve switching control mechanism in the automatic monitoring and control device for the transformer breather according to an embodiment of the present invention.

[0033] like Figure 1 and Figure 2 As shown, this embodiment of the invention provides an automatic monitoring and control device for a transformer breather, which is connected to a first transformer breather 92 and a second transformer breather 91 respectively. The automatic monitoring and control device includes a first channel 101 connected to the first transformer breather 92, a second channel 102 connected to the second transformer breather 91, a third channel 96, and a valve automatic switching control mechanism 94. The valve automatic switching control mechanism 94 includes a dehumidification and exhaust switching assembly and a detection element 50. The detection element 50 is disposed on the third channel 96. The dehumidification and exhaust switching assembly is disposed on the first channel 101 and the second channel 102. The first channel 101 and the second channel 102 are integrally formed pipes, and the first channel 101 and the second channel 102 are connected to the third channel 96 through a piston 42.

[0034] It should be noted that the first channel 101 is provided with a first pipe interface 26 connected to the first transformer breather 92, and the second channel 102 is provided with a second pipe interface connected to the second transformer breather 91. In this embodiment, the first pipe interface 26 is fixedly installed to the first channel 101 by fastener insertion fixing hole 13, and the second pipe interface is fixedly installed to the second channel 102 by fastener insertion fixing hole 13.

[0035] In this embodiment of the invention, the detection element 50 can be used to detect the humidity data of the first channel 101 or the second channel 102 corresponding to the operation of the first transformer breather 92 or the second transformer breather 91.

[0036] It should be noted that the detection element 50 is preferably a humidity sensor. The detection element 50 is installed on the third channel 96.

[0037] In this embodiment of the invention, the dehumidification and exhaust switching component is used to switch the gas dehumidified by the silica gel particles of the first transformer breather 92 or the second transformer breather 91 to the first channel 101 or the second channel 102 for exhaust based on the detected humidity data.

[0038] It should be noted that the dehumidification and exhaust switching component determines that if the detected humidity data is greater than the set humidity value, it means that the silica gel particles of the transformer breather connected to the corresponding channel have reduced moisture absorption. It is necessary to switch to another transformer breather and control the transformer breather with reduced silica gel particle moisture absorption to dehumidify. The dehumidified water vapor is then discharged through the corresponding channel, thus realizing the recycling of silica gel particles from the transformer breather.

[0039] In this embodiment of the invention, the thickness of piston 42 is preferably 10 mm, and the diameter of third pipe 96 is preferably 36 mm. Moving piston 42 to the middle position of third pipe 96 will not cause airway blockage, thus improving the operational reliability of the automatic monitoring and control device of transformer breather.

[0040] In this embodiment of the invention, the automatic monitoring and control device for the transformer breather can extend the maintenance cycle of the transformer breather by setting up a first transformer breather and a second transformer breather, and facilitate the installation and use of the breather by an automatic valve switching control mechanism; the first and second transformer breathers with regenerable silicone can alternately heat and regenerate silicone to achieve the effect of eliminating the need to replace the silicone particles of the breather, while the automatic valve switching control mechanism achieves the effect of intelligent rotation.

[0041] This invention provides an automatic monitoring and control device for transformer breathers, which is connected to a first transformer breather and a second transformer breather. The device includes a first channel connected to the first transformer breather, a second channel connected to the second transformer breather, a third channel, and an automatic valve switching control mechanism. The automatic valve switching control mechanism includes a dehumidification and exhaust switching assembly and a detection element. The detection element is located on the third channel, and the dehumidification and exhaust switching assembly is located on the first and second channels. The first and second channels are integrally formed pipes, and are connected to the third channel via a piston switching mechanism. This automatic monitoring and control device detects humidity data in either the first or second channel using the detection element. Based on the humidity data, the dehumidification and exhaust switching assembly controls the discharge of water vapor from the silica gel particles in the transformer breather and switches the device to another transformer breather. This significantly improves the silica gel utilization efficiency of the transformer breather, reduces the workload of breather inspection and maintenance, and ensures the safe and reliable operation of the transformer. It avoids the shortcomings of existing transformer breathers that require maintenance after the silica gel particles become ineffective and that silica gel cannot be recycled, thus solving the technical problems of high maintenance workload and non-recyclable silica gel particles in existing transformer breathers.

[0042] Figure 3 This is a schematic diagram of the dehumidification and exhaust switching component in the automatic monitoring and control device for the transformer breather according to an embodiment of the present invention.

[0043] like Figure 2 and Figure 3As shown, in one embodiment of the present invention, the dehumidification and exhaust switching assembly includes a drive element 46, a first connecting rod 45, a second connecting rod 29, a first chuck 66, a first elastic element 38, a first sealing element 64, a first isolation element 10, a first exhaust pipe 49, a second exhaust pipe 77, a second chuck 20, a second elastic element 76, a second sealing element 21, and a second isolation element 72. The output end of the drive element 46 is connected to the first connecting rod 45, and the first connecting rod 45 is connected to the second connecting rod 29. The first chuck 66, the first elastic element 38, and the first sealing element 64 are sleeved on the first connecting rod 29 and disposed on the first channel 101. The first exhaust pipe 49 is connected through the first channel 101 and is located on the first chuck. Between 66 and driving element 46, the two ends of the first elastic element 38 are connected to the first chuck 66 and the first sealing element 64 respectively, the second isolation element 72 is connected to the end of the second connecting rod 29, the two ends of the second elastic element 76 are connected to the second sealing element 21 and the second chuck 20 respectively, the second chuck 20, the second elastic element 76, the second sealing element 21 and the second isolation element 72 are arranged on the second channel 102, the second exhaust pipe 77 is threadedly connected to the second channel 102, the first isolation element 10, the second isolation element 72, the first chuck 66 and the second chuck 20 are all provided with through holes, and the first sealing element 38 and the second sealing element 76 are respectively used to seal the through holes of the corresponding first isolation element 10 and the second isolation element 72;

[0044] If the humidity data detected in the first channel 101 is greater than the humidity set value, the control drive element 46 drives the first connecting rod 45 and the second connecting rod 29 to move towards the first exhaust pipe 49, causing the first sealing element 64 to push the first elastic element 38. The first elastic element 38 drives the first sealing element 64 away from the first isolation element 10, and the through hole of the first isolation element 10 opens, so that the water vapor heated and dried by the first transformer breather 92 enters the first exhaust pipe 49 through the first channel 101, the through hole of the first isolation element 10, and the through hole of the first chuck 66 and is discharged. The piston 42 moves to the first channel 101 so that the second channel 102 and the third channel 96 are connected.

[0045] If the humidity data detected in the second channel 102 is greater than the humidity set value, the control drive element 46 drives the first connecting rod 45 and the second connecting rod 29 to move towards the second exhaust pipe 77, causing the second sealing element 21 to push the second elastic element 76. The second elastic element 76 drives the second sealing element 21 away from the second isolation element 72, and the through hole of the second isolation element 72 opens, so that the water vapor heated and dried by the second transformer breather 91 enters the second exhaust pipe 77 through the second channel 102, the through hole of the second isolation element 72, and the through hole of the second chuck 20 and is discharged. The piston 42 moves to the second channel 102 to connect the first channel 101 with the third channel 96.

[0046] It should be noted that the first chuck 66, the first elastic element 38, the first sealing element 64, and the first isolation element 10 are provided with connecting holes that match the first connecting rod 45. The piston 42 is provided with a mounting hole that matches the second connecting rod 29. The second isolation element 72 has a protruding connecting post that matches the end of the second connecting rod 29. The second exhaust pipe 77 can be a pipe that bends downwards at 90 degrees. In this embodiment, the driving element 46 can preferably be a small DC motor, which can be installed in a 40mm diameter pipe. Alternatively, a small stepper motor can be selected, and the speed of the first connecting rod 45 can be reduced by adjusting the reduction gear. The rotation of the large gear drives the internal thread bolt of the gear shaft to rotate, thereby pushing the first connecting rod 45 back and forth. The first elastic element and the second elastic element can be selected as springs. The first isolation element 10 abuts against the inner wall of the first channel 101 and is located on the left side of the connection with the first transformer breather. The second isolation element 72 abuts against the inner wall of the second channel 102 and is located on the right side of the connection with the second transformer breather. The left side of the first elastic element 38 contacts the first chuck 66, and the right side of the first elastic element 38 contacts the first isolation element 64. The first isolation element 64 is pushed and squeezed to the left by the 8mm cylindrical second connecting rod 29 moving to the left, which in turn squeezes the first elastic element 38. The thrust comes from the 5mm first connecting rod 45 connected in the center. The first connecting rod 45 is pulled by the internal threaded gear driven by the left side.

[0047] In an embodiment of the present invention, when the automatic monitoring and control device of the transformer breather detects that the humidity data of the first channel is greater than the humidity set value, it needs to switch the working first transformer breather to the second transformer breather and discharge the water vapor in the first channel 101. Its working principle is as follows: the first connecting rod 46 is connected to the second connecting rod 29, and the driving element 46 drives the first connecting rod 46 to move the second connecting rod 29 together towards the first exhaust pipe 29 (e.g., ...). Figure 1 (As shown, it moves to the left), thereby driving the piston 42 to move to the left. The second channel 102 is interconnected with the third channel 96, which also drives the first sealing element 64 and the first isolation element 10 to compress the first elastic element 38 to the left. The first elastic element 38 drives the first sealing element 64 to move away from the first isolation element 10, so that the through hole of the first isolation element 10 opens, allowing the water vapor generated during the dehumidification and drying of the silica gel particles by the first transformer breather 92 to be discharged into the air through the exhaust channel. The exhaust channel consists of the through hole of the first channel, the first isolation element, the through hole of the first chuck, and the first exhaust pipe.

[0048] In an embodiment of the present invention, when the automatic monitoring and control device of the transformer breather detects that the humidity data of the second channel is greater than the humidity set value, it needs to switch the working second transformer breather to the first transformer breather and discharge the water vapor in the second channel 102. Its working principle is as follows: the first connecting rod 46 is connected to the second connecting rod 29, and the driving element 46 drives the first connecting rod 46 to move the second connecting rod 29 together towards the second exhaust pipe 77 (e.g., ...). Figure 1 (As shown, it moves to the right), thereby driving the piston 42 to move to the right. The first channel 101 and the third channel 96 are interconnected, and also drive the first sealing element 21 and the second isolation element 72 to move away from the second isolation element 72 due to the compression of the second elastic element 76. The second elastic element 76 drives the second sealing element 21 to move away from the second isolation element 72, so that the through hole of the second isolation element 72 is opened. This allows the water vapor generated during the dehumidification and drying of the silica gel particles by the second transformer breather 91 to be discharged into the air through the exhaust channel. The exhaust channel consists of the through hole of the second channel, the second isolation element, the through hole of the second chuck, and the second exhaust pipe.

[0049] like Figure 2 and Figure 3 As shown, in one embodiment of the present invention, the piston 42 is movably sleeved on the second connecting rod 29, and the piston 42 is provided with a fixing element 14 for fixing the piston 42 on the second connecting rod 29.

[0050] It should be noted that the fixing element 14 can be a bolt. In this embodiment, when the automatic control function of the valve automatic switching control mechanism fails, the fixing element 14 can be manually screwed in when the piston 42 moves to the area of ​​the fixing element 14, fixing the fixing element 14 to the left or right side, thereby locking the movement of the piston 42 and ensuring that one of the channels is completely unobstructed. Under normal circumstances, this fixing element 14 does not need to be tightened so that the piston 42 can move back and forth.

[0051] like Figure 2 and Figure 3 As shown, in one embodiment of the present invention, the drive element 46 is covered with a protective cover 48 for protection.

[0052] It should be noted that the protective cover 48 can also be called an inspection cover. In special circumstances, the moving piston 42 can be manually adjusted by opening this protective cover 48 and rotating the central first connecting rod 45 with a screwdriver.

[0053] like Figure 2 and Figure 3 As shown, in one embodiment of the present invention, a rubber ring 39 for pressing and sealing is provided in the middle of the piston 42.

[0054] It should be noted that the rubber ring 39 is installed in the middle of the piston's sliding surface with a 1mm diameter semicircle recessed in the middle. A 1mm diameter rubber ring is sufficient. It is used to press and seal the air outlet pipes on both sides of the third channel to ensure good sealing after the piston 42 moves.

[0055] like Figure 2 and Figure 3 As shown, in one embodiment of the present invention, the automatic monitoring and control device for the transformer breather includes a heating element 97 for dehumidifying the silica gel particles in the first transformer breather 92 and the second transformer breather 91. Both the first transformer breather 92 and the second transformer breather 91 are equipped with heating elements 92. Both the first transformer breather 92 and the second transformer breather 91 are provided with pipes that are connected to the corresponding first channel 101 and second channel 102.

[0056] It should be noted that the first transformer breather 92 is connected to the first channel 101 by a pipe 93, and the second transformer breather 91 is connected to the second channel 102 by a pipe 82. In this embodiment, both the first transformer breather 92 and the second transformer breather 91 are provided with a top cover 95 and a breather inlet / outlet 98.

[0057] Example 2:

[0058] This invention also provides an automatic monitoring and control method for a transformer breather, applied to the aforementioned automatic monitoring and control device for the transformer breather. The automatic monitoring and control method for the transformer breather includes the following steps:

[0059] Acquire humidity data from the first or second channel;

[0060] If the humidity data is greater than the humidity set value, the valve automatic switching control mechanism controls the first or second channel corresponding to the humidity data to discharge the water vapor output from the first transformer breather or the second transformer breather.

[0061] It should be noted that the automatic monitoring and control device for the transformer breather in Embodiment 2 has been described in detail in Embodiment 1, and will not be described again in this embodiment. The specific steps of the automatic monitoring and control method for the transformer breather have been described in detail in the working principle of Embodiment 1.

[0062] Example 3:

[0063] This invention also provides a transformer, including the above-described automatic monitoring and control device for the transformer breather.

[0064] It should be noted that the contents of the automatic monitoring and control device for the transformer breather in Embodiment 2 have been described in detail in Embodiment 1, and will not be described in this embodiment.

[0065] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic monitoring and control device for a transformer breather, connected to a first transformer breather and a second transformer breather respectively, characterized in that, The automatic monitoring and control device includes a first channel connected to the first transformer breather, a second channel connected to the second transformer breather, a third channel, and an automatic valve switching control mechanism. The automatic valve switching control mechanism includes a dehumidification and exhaust switching assembly and a detection element. The detection element is disposed on the third channel. The dehumidification and exhaust switching assembly is disposed on the first channel and the second channel. The first channel and the second channel are integrally formed pipes. The first channel and the second channel are connected to the third channel through a piston switching mechanism. The detection element is used to detect the humidity data of the first channel or the second channel corresponding to the operation of the first transformer breather or the second transformer breather; The dehumidification and exhaust switching component is used to switch the dehumidified gas from the silica gel particles of the first transformer breather or the second transformer breather to the first channel or the second channel for exhaust based on the detected humidity data. The dehumidification and exhaust switching assembly includes a drive element, a first connecting rod, a second connecting rod, a first chuck, a first elastic element, a first sealing element, a first isolation element, a first exhaust pipe, a second exhaust pipe, a second chuck, a second elastic element, a second sealing element, and a second isolation element. The output end of the drive element is connected to the first connecting rod, and the first connecting rod is connected to the second connecting rod. The first chuck, the first elastic element, and the first sealing element are sleeved on the first connecting rod and disposed on the first channel. The first exhaust pipe is connected through the first channel and is located between the first chuck and the drive element. The two ends of the first elastic element are respectively connected to the first chuck and the first sealing element. The second isolation element is connected to the end of the second connecting rod, and the two ends of the second elastic element are respectively connected to the second sealing element and the second chuck. The second chuck, the second elastic element, the second sealing element, and the second isolation element are disposed on the second channel. The second exhaust pipe is threadedly connected to the second channel. The first isolation element, the second isolation element, the first chuck, and the second chuck are all provided with through holes. The first sealing element and the second sealing element are respectively used to seal the through holes of the corresponding first isolation element and the second isolation element. If the humidity data detected in the first channel is greater than the humidity set value, the driving element is controlled to drive the first connecting rod and the second connecting rod to move towards the first exhaust pipe, causing the first sealing element to push the first elastic element. The first elastic element causes the first sealing element to move away from the first isolation element, and the through hole of the first isolation element opens, so that the water vapor heated and dried by the first transformer breather enters the first exhaust pipe through the first channel, the through hole of the first isolation element, and the through hole of the first chuck and is discharged. The piston moves to the first channel so that the second channel is connected to the third channel. If the humidity data detected in the second channel is greater than the humidity set value, the driving element is controlled to drive the first connecting rod and the second connecting rod to move towards the second exhaust pipe, causing the second sealing element to push the second elastic element. The second elastic element causes the second sealing element to move away from the second isolation element, and the through hole of the second isolation element opens, so that the water vapor heated and dried by the second transformer breather enters the second exhaust pipe through the second channel, the through hole of the second isolation element, and the through hole of the second chuck and is discharged. The piston moves to the second channel so that the first channel is connected to the third channel.

2. The automatic monitoring and control device for a transformer breather according to claim 1, characterized in that, The drive element is covered by a protective cover for protection.

3. The automatic monitoring and control device for a transformer breather according to claim 1, characterized in that, The piston is movably sleeved on the second connecting rod, and the piston is provided with a fixing element for fixing the piston on the second connecting rod.

4. The automatic monitoring and control device for a transformer breather according to claim 1, characterized in that, A rubber ring for pressing and sealing is provided in the middle of the piston.

5. The automatic monitoring and control device for a transformer breather according to claim 1, characterized in that, It includes a heating element for dehumidifying silica particles in the first transformer breather and the second transformer breather, and the heating element is provided on both the first transformer breather and the second transformer breather.

6. The automatic monitoring and control device for a transformer breather according to claim 1, characterized in that, Both the first transformer breather and the second transformer breather are provided with pipes that are connected to the corresponding first and second channels.

7. The automatic monitoring and control device for a transformer breather according to claim 1, characterized in that, The detection element is a humidity sensor.

8. An automatic monitoring and control method for a transformer breather, applied to the automatic monitoring and control device for a transformer breather as described in any one of claims 1-7, characterized in that, Includes the following steps: Acquire humidity data from the first or second channel; If the humidity data is greater than the humidity set value, the valve automatic switching control mechanism controls the first or second channel corresponding to the humidity data to discharge the water vapor output from the first transformer breather or the second transformer breather.

9. A transformer, characterized in that, Includes an automatic monitoring and control device for a transformer breather as described in any one of claims 1-7.

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