TWM558900U - Breathing and drying system of transformer - Google Patents
Breathing and drying system of transformer Download PDFInfo
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- TWM558900U TWM558900U TW106219453U TW106219453U TWM558900U TW M558900 U TWM558900 U TW M558900U TW 106219453 U TW106219453 U TW 106219453U TW 106219453 U TW106219453 U TW 106219453U TW M558900 U TWM558900 U TW M558900U
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Abstract
本創作公開一種變壓器呼吸乾燥系統，其包括一變壓器以及一空氣乾燥裝置。空氣乾燥裝置連接於變壓器，空氣乾燥裝置包括一裝置本體、一重量感測器、一控制單元以及一加熱器，裝置本體具有乾燥劑，重量感測器用以偵測乾燥劑的重量變化，控制單元用以判斷乾燥劑的重量是否達到第一預設重量值，若乾燥劑的重量達到第一預設重量值，則控制單元進一步判斷變壓器為進氣狀態或排氣狀態，若變壓器為排氣狀態，則控制單元啟動加熱器，以去除乾燥劑所吸收的水分。藉此，能延長變壓器的使用壽命。 The present invention discloses a transformer breathing drying system that includes a transformer and an air drying device. The air drying device is connected to the transformer. The air drying device comprises a device body, a weight sensor, a control unit and a heater. The device body has a desiccant, and the weight sensor detects the weight change of the desiccant. The control unit The utility model is configured to determine whether the weight of the desiccant reaches a first preset weight value, and if the weight of the desiccant reaches a first preset weight value, the control unit further determines that the transformer is in an intake state or an exhaust state, and if the transformer is in an exhaust state The control unit activates the heater to remove moisture absorbed by the desiccant. Thereby, the service life of the transformer can be extended.
Description
本創作涉及一種變壓器，特別是涉及一種應用空氣乾燥裝置的變壓器呼吸乾燥系統。 The present invention relates to a transformer, and more particularly to a transformer breathing drying system using an air drying device.
大型變壓器(如：油浸式變壓器)在運行過程中，會因為線圈繞組產生溫度變化並引起絕緣油的體積變化。為了調節變壓器內的油量，此類變壓器通常具有一儲油器，用以補償絕緣油在升溫或降溫時產生的體積變化。只是面對潮濕的氣候，一旦潮濕空氣進入到儲油器內，將會導致油質劣化，並出現整體絕緣下降的情況，嚴重時甚至會發生絕緣擊穿而造成變壓器燒毀等重大事故。 Large transformers (such as oil-immersed transformers) may experience temperature changes in the coil windings and cause volume changes in the insulating oil during operation. In order to regulate the amount of oil in the transformer, such transformers typically have an oil reservoir to compensate for volume changes that occur when the insulating oil is warmed or cooled. Just facing the humid climate, once the humid air enters the oil reservoir, the oil quality will deteriorate, and the overall insulation will fall. In serious cases, even the insulation breakdown will cause the transformer to burn and other major accidents.
為了防止潮濕空氣使變壓器內絕緣油的油質劣化，此類變壓器會在儲油器的氣體通道上加裝空氣乾燥器，通過空氣乾燥器內的乾燥劑將空氣中的水分吸收，以確保被吸入的空氣是乾燥的。然而，現有的免保養空氣乾燥器在設計上，雖然能通過加熱使乾燥劑從飽和狀態恢復吸濕狀態，但是其無法得知乾燥劑是否已達到飽和狀態或接近飽和的狀態。此外，實際上變壓器的進排氣狀態會因為一些外在因素而突然發生改變，而現有的空氣乾燥器並無法在所有情況下防止潮濕空氣進入儲油器。 In order to prevent the humid air from deteriorating the oil quality of the insulating oil in the transformer, such a transformer will install an air dryer on the gas passage of the oil reservoir, and absorb the moisture in the air through the desiccant in the air dryer to ensure that it is The inhaled air is dry. However, the existing maintenance-free air dryer is designed to be able to restore the desiccant from a saturated state to a hygroscopic state by heating, but it is not known whether the desiccant has reached a saturated state or a near saturated state. In addition, in fact, the inlet and exhaust state of the transformer suddenly changes due to some external factors, and the existing air dryer cannot prevent humid air from entering the oil reservoir under all circumstances.
本創作所要解決的技術問題在於，針對現有技術的不足提供一種變壓器呼吸乾燥系統。 The technical problem to be solved by the present invention is to provide a transformer breathing drying system for the deficiencies of the prior art.
為了解決上述的技術問題，本創作所採用的其中一技術方案是：一種變壓器呼吸乾燥系統，其包括一變壓器以及一空氣乾燥裝置。所述空氣乾燥裝置具有一空氣入口端以及一空氣出口端， 且所述空氣出口端連接於所述變壓器，其中所述空氣乾燥裝置包括一裝置本體、一重量感測器、一加熱器以及一控制單元。所述裝置本體設置於所述空氣入口端與所述空氣出口端之間，其中所述裝置本體具有乾燥劑，用以吸收進入所述變壓器之空氣中的水分；所述重量感測器設置於所述空氣入口端，用以偵測所述乾燥劑的重量變化；所述加熱器設置於所述裝置本體上，用以對所述乾燥劑進行加熱；所述控制單元電性耦接所述重量感測器與所述加熱器；其中，所述控制單元用以判斷所述乾燥劑的重量是否達到一第一預設重量值；若所述乾燥劑的重量達到所述第一預設重量值，則所述控制單元進一步判斷所述變壓器為進氣狀態或排氣狀態；若所述變壓器為排氣狀態，則所述控制單元啟動所述加熱器，以去除所述乾燥劑所吸收的水分。 In order to solve the above technical problems, one of the technical solutions adopted by the present invention is: a transformer breathing drying system comprising a transformer and an air drying device. The air drying device has an air inlet end and an air outlet end. And the air outlet end is connected to the transformer, wherein the air drying device comprises a device body, a weight sensor, a heater and a control unit. The device body is disposed between the air inlet end and the air outlet end, wherein the device body has a desiccant for absorbing moisture in the air entering the transformer; the weight sensor is disposed at The air inlet end is configured to detect a change in weight of the desiccant; the heater is disposed on the device body to heat the desiccant; and the control unit is electrically coupled to the a weight sensor and the heater; wherein the control unit is configured to determine whether the weight of the desiccant reaches a first preset weight value; if the weight of the desiccant reaches the first preset weight a value, the control unit further determining that the transformer is in an intake state or an exhaust state; if the transformer is in an exhaust state, the control unit activates the heater to remove the absorption of the desiccant Moisture.
在本創作的一實施例中，所述空氣乾燥裝置包括一溫濕度感測器，所述溫濕度感測器設置於所述空氣出口端，且電性耦接所述控制單元，用以在所述加熱器被啟動以對所述乾燥劑進行加熱的期間，偵測所述空氣出口端的空氣濕度；其中，所述控制單元判斷所述空氣出口端的空氣濕度是否高於一預設濕度值；若所述空氣出口端的空氣濕度高於所述預設濕度值，則所述控制單元關閉所述加熱器以停止加熱。 In an embodiment of the present invention, the air drying device includes a temperature and humidity sensor, the temperature and humidity sensor is disposed at the air outlet end, and is electrically coupled to the control unit for The heater is activated to detect the humidity of the air at the air outlet end during heating of the desiccant; wherein the control unit determines whether the air humidity at the air outlet end is higher than a preset humidity value; If the air humidity at the air outlet end is higher than the preset humidity value, the control unit turns off the heater to stop heating.
在本創作的一實施例中，所述重量感測器在所述加熱器被啟動以對所述乾燥劑進行加熱的期間，偵測所述乾燥劑的重量；其中，所述控制單元判斷所述乾燥劑的重量是否減少到一第二預設重量值；若所述乾燥劑的重量減少到所述第二預設重量值，則所述控制單元關閉所述加熱器以停止加熱。 In an embodiment of the present invention, the weight sensor detects a weight of the desiccant during a period in which the heater is activated to heat the desiccant; wherein the control unit determines Whether the weight of the desiccant is reduced to a second predetermined weight value; if the weight of the desiccant is reduced to the second predetermined weight value, the control unit turns off the heater to stop heating.
在本創作的一實施例中，所述控制單元在確認所述變壓器處於一升溫模式時，判斷所述變壓器為排氣狀態。 In an embodiment of the present invention, the control unit determines that the transformer is in an exhaust state when it is confirmed that the transformer is in a heating mode.
在本創作的一實施例中，所述溫濕度感測器進一步週期性地偵測所述變壓器的溫度，以得到多個固定時間段的多個平均溫度 值。 In an embodiment of the present invention, the temperature and humidity sensor further periodically detects the temperature of the transformer to obtain a plurality of average temperatures of a plurality of fixed time periods. value.
在本創作的一實施例中，所述控制單元在確認任一個固定時間段的所述平均溫度值皆大於前一個固定時間段的所述平均溫度值，且最後一個固定時間段的所述平均溫度值與第一個固定時間段的所述平均溫度值的差值大於或等於一預定溫度差值時，判斷所述變壓器處於所述升溫模式。 In an embodiment of the present creation, the control unit confirms that the average temperature value of any one of the fixed time periods is greater than the average temperature value of the previous fixed time period, and the average of the last fixed time period When the difference between the temperature value and the average temperature value of the first fixed period of time is greater than or equal to a predetermined temperature difference, it is determined that the transformer is in the heating mode.
在本創作的一實施例中，所述裝置本體包括一內管、一外管以及一導熱結構，所述乾燥劑置於所述內管上，所述外管圍繞所述內管設置，且所述外管與所述內管之間形成有一導氣空間，所述導熱結構設置於所述內管的內側。 In an embodiment of the present invention, the apparatus body includes an inner tube, an outer tube, and a heat conducting structure, the desiccant is disposed on the inner tube, the outer tube is disposed around the inner tube, and An air guiding space is formed between the outer tube and the inner tube, and the heat conducting structure is disposed at an inner side of the inner tube.
在本創作的一實施例中，所述內管具有一用以填充所述乾燥劑的網體。 In an embodiment of the present creation, the inner tube has a mesh body for filling the desiccant.
在本創作的一實施例中，所述導熱結構包括多個導熱板，且所述加熱器設置於多個所述導熱板的其中之一上。 In an embodiment of the present disclosure, the heat conducting structure includes a plurality of heat conducting plates, and the heater is disposed on one of the plurality of heat conducting plates.
在本創作的一實施例中，所述變壓器包括一儲油槽，且所述空氣乾燥裝置的所述空氣出口端通過一管路以連接所述儲油槽。 In an embodiment of the present invention, the transformer includes an oil reservoir, and the air outlet end of the air drying device is connected to the oil reservoir through a conduit.
本創作的其中一有益效果在於，本創作所提供的變壓器呼吸乾燥系統，其能通過“控制單元用以判斷乾燥劑的重量是否達到第一預設重量值，若乾燥劑的重量達到第一預設重量值，則控制單元進一步判斷變壓器為進氣狀態或排氣狀態”以及“若變壓器為排氣狀態，則控制單元啟動加熱器，以去除乾燥劑所吸收的水分”的技術方案，以防止從乾燥劑中蒸發出來的水分隨著氣流進入變壓器而引起故障發生，使變壓器的使用壽命得以延長。 One of the beneficial effects of the present invention is that the transformer breathing drying system provided by the present invention can pass the "control unit to determine whether the weight of the desiccant reaches the first preset weight value, and if the weight of the desiccant reaches the first pre- If the weight value is set, the control unit further determines whether the transformer is in the intake state or the exhaust state" and "if the transformer is in the exhaust state, the control unit activates the heater to remove the moisture absorbed by the desiccant" to prevent The moisture evaporating from the desiccant causes a failure as the airflow enters the transformer, which extends the life of the transformer.
為使能更進一步瞭解本創作的特徵及技術內容，請參閱以下有關本創作的詳細說明與圖式，然而所提供的圖式僅用於提供參考與說明，並非用來對本創作加以限制。 In order to further understand the features and technical contents of this creation, please refer to the following detailed description and drawings of the present invention. However, the drawings are provided for reference and description only, and are not intended to limit the creation.
Z‧‧‧變壓器呼吸乾燥系統 Z‧‧‧Transformer Breathing and Drying System
1‧‧‧變壓器 1‧‧‧Transformer
11‧‧‧儲油槽 11‧‧‧ oil storage tank
2‧‧‧空氣乾燥裝置 2‧‧‧Air drying unit
20a‧‧‧空氣入口端 20a‧‧‧air inlet end
20b‧‧‧空氣出口端 20b‧‧‧air outlet
21‧‧‧裝置本體 21‧‧‧ device body
211‧‧‧乾燥劑 211‧‧‧Drying agent
212‧‧‧內管 212‧‧‧Inside
213‧‧‧外管 213‧‧‧External management
214‧‧‧導熱結構 214‧‧‧thermal structure
2141‧‧‧倒熱板 2141‧‧‧Reversing hot plate
215‧‧‧導氣空間 215‧‧‧ air conduction space
22‧‧‧重量感測器 22‧‧‧ Weight sensor
23‧‧‧加熱器 23‧‧‧heater
24‧‧‧控制單元 24‧‧‧Control unit
25‧‧‧儲存單元 25‧‧‧ storage unit
26‧‧‧溫濕度感測器 26‧‧‧ Temperature and Humidity Sensor
P‧‧‧管路 P‧‧‧ pipeline
圖1為本創作的變壓器呼吸乾燥系統的方塊圖。 Figure 1 is a block diagram of the transformer breathing drying system of the present invention.
圖2為本創作的變壓器呼吸乾燥系統的一種狀態的示意圖。 Fig. 2 is a schematic view showing a state of the transformer breathing and drying system of the present invention.
圖3為本創作的變壓器呼吸乾燥系統的另一種狀態的示意圖。 Figure 3 is a schematic illustration of another state of the transformer breathing drying system of the present invention.
圖4為本創作的變壓器呼吸乾燥系統的空氣乾燥裝置的其中一觀看視角的立體組合示意圖。 4 is a perspective assembled view of one of the viewing angles of the air drying device of the transformer breathing and drying system of the present invention.
圖5為本創作的變壓器呼吸乾燥系統的空氣乾燥裝置於另外一觀看視角的立體組合示意圖。 FIG. 5 is a perspective assembled view of the air drying device of the transformer breathing and drying system of the present invention in another viewing angle.
圖6為本創作的變壓器呼吸乾燥系統的空氣乾燥裝置的部分立體分解示意圖。 FIG. 6 is a partially exploded perspective view of the air drying device of the transformer breathing and drying system of the present invention.
圖7為圖4中沿Ⅶ-Ⅶ剖線的剖面示意圖。 Figure 7 is a cross-sectional view taken along line VII-VII of Figure 4;
圖8為本創作的空氣乾燥裝置之控制方法的流程圖。 Fig. 8 is a flow chart showing the control method of the air drying device of the present invention.
圖9為本創作的空氣乾燥裝置之控制方法的步驟S3的流程圖。 Fig. 9 is a flow chart showing the step S3 of the control method of the air drying apparatus of the present invention.
圖10為本創作的空氣乾燥裝置之控制方法的步驟S4的一種實施方式的流程圖。 Fig. 10 is a flow chart showing an embodiment of the step S4 of the control method of the air drying device of the present invention.
圖11為本創作的空氣乾燥裝置之控制方法的步驟S4的另一種實施方式的流程圖。 Figure 11 is a flow chart showing another embodiment of the step S4 of the control method of the air drying apparatus of the present invention.
以下是通過特定的具體實施例來說明本創作所公開有關“變壓器呼吸乾燥系統及其空氣乾燥裝置之控制方法”的實施方式，本領域技術人員可由本說明書所公開的內容瞭解本創作的優點與效果。本創作可通過其他不同的具體實施例加以施行或應用，本說明書中的各項細節也可基於不同觀點與應用，在不悖離本創作的構思下進行各種修改與變更。另外，本創作的附圖僅為簡單示意說明，並非依實際尺寸的描繪，事先聲明。以下的實施方式將進一步詳細說明本創作的相關技術內容，但所公開的內容並非用以限制本創作的保護範圍。 The following is a specific embodiment to illustrate the implementation of the "control method of the transformer breathing drying system and its air drying device" disclosed in the present disclosure, and those skilled in the art can understand the advantages of the present invention from the contents disclosed in the present specification. effect. The present invention can be implemented or applied in various other specific embodiments. The details of the present specification can also be variously modified and changed without departing from the concept of the present invention. In addition, the drawings of the present creation are only for the purpose of simple illustration, and are not stated in advance according to the actual size. The following embodiments will further explain the related technical content of the present invention, but the disclosure is not intended to limit the scope of protection of the present invention.
應理解，雖然本文中可能使用術語第一、第二、第三等來描述各種元件或者信號，但這些元件或者信號不應受這些術語的限 制。這些術語主要是用以區分一元件與另一元件，或者一信號與另一信號。另外，本文中所使用的術語“或”，應視實際情況可能包括相關聯的列出項目中的任一個或者多個的組合。 It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements or signals, the elements or signals are not limited by the terms. system. These terms are primarily used to distinguish one element from another, or one signal and another. In addition, the term "or" as used herein may include a combination of any one or more of the associated listed items, depending on the actual situation.
請參閱圖1至圖3，圖1為本創作一實施例的變壓器呼吸乾燥系統的方塊圖，圖2及圖3為本創作一實施例的變壓器呼吸乾燥系統的示意圖。變壓器呼吸乾燥系統Z包括一變壓器1以及一空氣乾燥裝置2。其中，空氣乾燥裝置2與變壓器1相互連接，而空氣乾燥裝置2中所儲存的乾燥劑能吸收空氣中的水分，以確保變壓器1在運作時吸入乾燥空氣，進而有效延長變壓器1的使用壽命。在本實施例中，變壓器1為油浸式變壓器，其包括一儲油槽11，且空氣乾燥裝置2通過一管路P以連接儲油槽11。 Please refer to FIG. 1 to FIG. 3 . FIG. 1 is a block diagram of a transformer breathing drying system according to an embodiment of the present invention. FIG. 2 and FIG. 3 are schematic diagrams of a transformer breathing drying system according to an embodiment of the present invention. The transformer breathing drying system Z comprises a transformer 1 and an air drying device 2. The air drying device 2 and the transformer 1 are connected to each other, and the desiccant stored in the air drying device 2 can absorb moisture in the air to ensure that the transformer 1 draws in dry air during operation, thereby effectively extending the service life of the transformer 1. In the present embodiment, the transformer 1 is an oil immersed transformer, which includes an oil sump 11 and the air drying device 2 is connected to the oil sump 11 through a pipe P.
空氣乾燥裝置2主要包括一裝置本體21、一重量感測器22、一加熱器23及一控制單元24。其中，空氣乾燥裝置2具有一空氣入口端20a及一空氣出口端20b，且管路P連接於空氣出口端20b，以使得空氣乾燥裝置2與變壓器1之間氣體連通。裝置本體21設置於空氣入口端20a與空氣出口端20b之間，用以儲存乾燥劑211，乾燥劑211吸收水分後重量會增加。重量感測器22設置於空氣入口端20a，用以偵測乾燥劑211的重量變化。加熱器23設置於裝置本體21上，用以對乾燥劑211進行加熱，以將乾燥劑211所吸收的水分蒸發，確保乾燥劑211具有吸水除濕能力。控制單元24能根據一特定控制邏輯來啟動加熱器23，以避免從乾燥劑211中蒸發出來的水分進入到儲油槽11內並滲透到絕緣油中造成油質劣化。在本實施例中，重量感測器22與加熱器23可以通過有線或無線方式電性耦接至控制單元24，控制單元24可為任意種類的處理器或可程式化電路。 The air drying device 2 mainly includes a device body 21, a weight sensor 22, a heater 23 and a control unit 24. The air drying device 2 has an air inlet end 20a and an air outlet end 20b, and the pipe P is connected to the air outlet end 20b to allow gas communication between the air drying device 2 and the transformer 1. The device body 21 is disposed between the air inlet end 20a and the air outlet end 20b for storing the desiccant 211, and the desiccant 211 absorbs moisture to increase the weight. The weight sensor 22 is disposed at the air inlet end 20a for detecting the change in weight of the desiccant 211. The heater 23 is disposed on the apparatus body 21 for heating the desiccant 211 to evaporate the moisture absorbed by the desiccant 211 to ensure that the desiccant 211 has a water absorption and dehumidification capability. The control unit 24 can activate the heater 23 in accordance with a specific control logic to prevent moisture evaporated from the desiccant 211 from entering the sump 11 and penetrating into the insulating oil to cause deterioration of the oil quality. In this embodiment, the weight sensor 22 and the heater 23 can be electrically coupled to the control unit 24 by wire or wirelessly. The control unit 24 can be any kind of processor or programmable circuit.
下面將對“特定控制邏輯”作更詳細的說明。首先，重量感測器22會偵測乾燥劑211的重量，並傳送重量訊號至控制單元24。然後，控制單元24會根據從重量感測器22取得的重量訊號， 來判斷乾燥劑211的重量是否達到一第一預設重量值，此第一預設重量值沒有特別限制，其可為一設定數值加上一裕度數值。若乾燥劑211的重量已達到第一預設重量值，控制單元24會再判斷變壓器1的進排氣狀態，亦即，判斷變壓器1為進氣狀態或排氣狀態。在本實施例中，當重量感測器22於一段固定時間(如：3分鐘)內，連續多次偵測到的重量都達到第一預設重量值時，控制單元24才開始判斷變壓器1的進排氣狀態，以避免因錯誤訊號而導致誤判，例如，因為一些外在的因素導致重量感測器22所偵測到的重量高於第一預設重量值。 The "Specific Control Logic" will be described in more detail below. First, the weight sensor 22 detects the weight of the desiccant 211 and transmits a weight signal to the control unit 24. Then, the control unit 24 will according to the weight signal obtained from the weight sensor 22, To determine whether the weight of the desiccant 211 reaches a first preset weight value, the first preset weight value is not particularly limited, and may be a set value plus a margin value. If the weight of the desiccant 211 has reached the first predetermined weight value, the control unit 24 will judge the intake and exhaust state of the transformer 1, that is, the transformer 1 is judged to be in the intake state or the exhaust state. In this embodiment, when the weight sensor 22 reaches the first preset weight value for a fixed period of time (for example, 3 minutes), the control unit 24 begins to judge the transformer 1 The intake and exhaust state to avoid misjudgment caused by the wrong signal, for example, because some external factors cause the weight detected by the weight sensor 22 to be higher than the first preset weight value.
在這裡，所謂“變壓器1為排氣狀態”是指，當變壓器1的負載增加時，儲油槽11內絕緣油的溫度會持續上升，同時絕緣油會發生體積膨脹而引起油面上升，使得儲油槽11內的氣體受到擠壓而持續向外排出的現象。所謂“變壓器1為進氣狀態”是指，當變壓器1的負載下降時，儲油槽11內絕緣油的溫度會持續下降，同時絕緣油會發生體積收縮而引起油面下降，使得外部氣體持續進入到儲油槽11內的現象。 Here, "the transformer 1 is in an exhaust state" means that when the load of the transformer 1 is increased, the temperature of the insulating oil in the oil storage tank 11 continues to rise, and at the same time, the volume expansion of the insulating oil causes the oil level to rise, so that the storage The gas in the oil groove 11 is squeezed and continuously discharged outward. The phrase "the transformer 1 is in the intake state" means that when the load of the transformer 1 drops, the temperature of the insulating oil in the oil storage tank 11 continues to decrease, and at the same time, the volume of the insulating oil shrinks and the oil level drops, so that the external gas continues to enter. The phenomenon into the oil storage tank 11.
若變壓器1為排氣狀態，控制單元24會啟動加熱器23，通過加熱來去除乾燥劑211所吸收的水分，以恢復乾燥劑211的乾燥能力，亦即，使乾燥劑211重新具有從空氣中吸收水分的能力。至於加熱的溫度和時間，本創作沒有特別限制，例如，考慮到變壓器1的運行情況與控制單元24作判斷的時間，乾燥劑211可以在120℃的溫度下加熱60分鐘。值得注意的是，在變壓器1處於排氣狀態的期間，由於儲油槽11內的氣體是單方向地由內向外流動，因此，能避免從乾燥劑211中蒸發出來的水分隨著氣流進入到儲油槽11內而導致油質劣化。 If the transformer 1 is in the exhaust state, the control unit 24 activates the heater 23 to remove the moisture absorbed by the desiccant 211 by heating to restore the drying ability of the desiccant 211, that is, to re-dry the desiccant 211 from the air. The ability to absorb moisture. As for the temperature and time of heating, the present creation is not particularly limited. For example, the desiccant 211 can be heated at a temperature of 120 ° C for 60 minutes in consideration of the operation of the transformer 1 and the timing of the judgment by the control unit 24. It is to be noted that, during the period in which the transformer 1 is in the exhaust state, since the gas in the oil reservoir 11 flows from the inside to the outside in a single direction, it is possible to prevent the moisture evaporated from the desiccant 211 from entering the reservoir with the airflow. The inside of the oil groove 11 causes deterioration of oil quality.
在本實施例中，控制單元24是根據變壓器1是否處於一特定升溫模式，來判斷變壓器1是否為排氣狀態。當控制單元24確認變壓器1處於此特定升溫模式時，即判斷變壓器1為排氣狀態。 更進一步來說，空氣乾燥裝置2包括一溫濕度感測器26，其可設置於空氣出口端20b，且電性耦接控制單元24，但本創作並不限定溫濕度感測器26的設置位置，只要溫濕度感測器26能夠偵測到從儲油槽11排出的氣體溫度即可。 In the present embodiment, the control unit 24 determines whether the transformer 1 is in an exhaust state based on whether the transformer 1 is in a specific temperature increase mode. When the control unit 24 confirms that the transformer 1 is in this particular temperature rise mode, it is judged that the transformer 1 is in the exhaust state. Further, the air drying device 2 includes a temperature and humidity sensor 26, which can be disposed at the air outlet end 20b and electrically coupled to the control unit 24, but the creation does not limit the setting of the temperature and humidity sensor 26. The position is as long as the temperature and humidity sensor 26 can detect the temperature of the gas discharged from the oil reservoir 11.
溫濕度感測器26用以週期性地偵測從儲油槽11排出的氣體的溫度，以得到多個固定時間段的絕緣油的多個平均溫度值。例如，溫濕度感測器26每隔20秒測一次油溫，而連續10次測得的溫度值可被蒐集成為一組溫度資料，依此類推，即可得到多組溫度資料(如：10組)，並且依據每一組溫度資料可計算出一平均溫度值。 The temperature and humidity sensor 26 is configured to periodically detect the temperature of the gas discharged from the oil storage tank 11 to obtain a plurality of average temperature values of the plurality of insulating oils for a fixed period of time. For example, the temperature and humidity sensor 26 measures the oil temperature every 20 seconds, and the temperature values measured for 10 consecutive times can be integrated into a set of temperature data, and so on, to obtain multiple sets of temperature data (eg, 10) Group), and an average temperature value can be calculated based on each set of temperature data.
在控制單元24作判斷的期間，若任一個固定時間段的平均溫度值皆大於前一個固定時間段的平均溫度值，且最後一個固定時間段的平均溫度值與第一個固定時間段的平均溫度值的差值大於或等於一預定溫度差值(如：3.3℃)時，亦即，若多組溫度資料的多個平均溫度值呈連續上升的趨勢，且最後一組溫度資料的平均溫度值與第一組溫度資料的平均溫度值大於或等於此預定溫度差值，控制單元24才會判斷變壓器1處於此特定升溫模式，以避免因環境溫度突然發生改變(如：早晨回溫)而造成誤判。 During the judgment by the control unit 24, if the average temperature value of any fixed time period is greater than the average temperature value of the previous fixed time period, and the average temperature value of the last fixed time period is equal to the average of the first fixed time period. When the difference between the temperature values is greater than or equal to a predetermined temperature difference (eg, 3.3 ° C), that is, if the average temperature values of the plurality of sets of temperature data are continuously rising, and the average temperature of the last set of temperature data If the value and the average temperature value of the first set of temperature data are greater than or equal to the predetermined temperature difference, the control unit 24 determines that the transformer 1 is in the specific temperature rise mode to avoid sudden changes in the ambient temperature (eg, morning temperature). Caused a false positive.
實務上，空氣乾燥裝置2可包括一儲存單元25，且儲存單元25電性耦接溫濕度感測器26與控制單元24，用以接收溫濕度感測器26所測得的溫度訊號，並轉換成相對應的溫度值予以儲存，且控制單元24可以從儲存單元25中取得溫度資料來判斷變壓器1的進排氣狀態。在本實施例中，儲存單元25可為任何型態的固定或可移動隨機存取記憶體(random access memory，RAM)、唯讀記憶體(read-only memory，ROM)、快閃記憶體(flash memory)或類似元件或上述元件的組合。 In practice, the air drying device 2 can include a storage unit 25, and the storage unit 25 is electrically coupled to the temperature and humidity sensor 26 and the control unit 24 for receiving the temperature signal measured by the temperature and humidity sensor 26, and The temperature value is converted into a corresponding temperature value for storage, and the control unit 24 can obtain the temperature data from the storage unit 25 to determine the intake and exhaust state of the transformer 1. In this embodiment, the storage unit 25 can be any type of fixed or removable random access memory (RAM), read-only memory (ROM), flash memory ( Flash memory) or similar component or a combination of the above components.
另值得注意的是，本創作的變壓器呼吸乾燥系統Z中加入了及時中斷對乾燥劑211加熱的機制，以因應系統中氣體的流動方 向突然發生改變的情況，以及避免不必要的加熱造成能源浪費。亦即，一旦變壓器1從排氣狀態改變為進氣狀態，導致系統中氣體的流動方向改變為由儲油槽11外部向內流動，控制單元24會及時關閉加熱器23。附帶說明一點，變壓器1實際在運行時，其狀態會因為一些外在因素而突然發生改變，然而傳統的空氣乾燥裝置並沒有及時中斷對乾燥劑211加熱的機制。 It is also worth noting that the transformer breathing drying system Z of the present invention incorporates a mechanism for timely interrupting the heating of the desiccant 211 to cope with the flow of gas in the system. Energy is wasted in the event of sudden changes and avoiding unnecessary heating. That is, once the transformer 1 is changed from the exhaust state to the intake state, the flow direction of the gas in the system is changed to flow inward from the outside of the oil reservoir 11, and the control unit 24 turns off the heater 23 in time. Incidentally, when the transformer 1 is actually in operation, its state may suddenly change due to some external factors, whereas the conventional air drying device does not interrupt the mechanism for heating the desiccant 211 in time.
上述機制可以通過加入一濕度控制條件來實現。更進一步來說，溫濕度感測器26也可以在加熱器23被啟動以對乾燥劑211進行加熱的期間，持續偵測從儲油槽11排出的氣體的濕度(相當於空氣出口端20b的空氣濕度)，並傳送濕度訊號至控制單元24。然後，控制單元24會根據從溫濕度感測器26取得的濕度訊號，來判斷空氣出口端20b的空氣濕度是否已高於一預設濕度值，例如為80%RH(Relative Humidity，相對濕度)。據此，當系統中氣體的流動方向改變為由儲油槽11外部向內流動時，從乾燥劑211中蒸發出來的水分將會經過空氣出口端20b，使得溫濕度感測器26所測得的濕度會高於此預設濕度值，此時控制單元24會關閉加熱器23以停止對乾燥劑211加熱。 The above mechanism can be achieved by adding a humidity control condition. Further, the temperature and humidity sensor 26 may continuously detect the humidity of the gas discharged from the oil reservoir 11 (corresponding to the air at the air outlet end 20b while the heater 23 is activated to heat the desiccant 211). Humidity) and transmits a humidity signal to the control unit 24. Then, based on the humidity signal obtained from the temperature and humidity sensor 26, the control unit 24 determines whether the air humidity of the air outlet end 20b has been higher than a preset humidity value, for example, 80% RH (Relative Humidity). . Accordingly, when the flow direction of the gas in the system is changed to flow inward from the outside of the oil reservoir 11, the moisture evaporated from the desiccant 211 will pass through the air outlet end 20b, so that the temperature and humidity sensor 26 measures The humidity will be higher than the preset humidity value, at which time the control unit 24 will turn off the heater 23 to stop heating the desiccant 211.
上述機制也可以通過加入一重量控制條件來實現。更進一步來說，可利用重量感測器22在加熱器23被啟動以對乾燥劑211進行加熱的期間，持續偵測乾燥劑的重量，並傳送重量訊號至控制單元24。然後，控制單元24會根據從重量感測器22取得的重量訊號，來判斷乾燥劑的重量是否已減少到一第二預設重量值；在本實施例中，第二預設重量值可以和第一預設重量值相同或不同。據此，當乾燥劑211因為水分含量降低而使得重量減少到此第二預設重量值時，表示乾燥劑211已恢復吸水能力，此時控制單元24會關閉加熱器23以停止對乾燥劑211加熱。 The above mechanism can also be achieved by adding a weight control condition. Further, the weight sensor 22 can be used to continuously detect the weight of the desiccant and transmit the weight signal to the control unit 24 while the heater 23 is activated to heat the desiccant 211. Then, the control unit 24 determines whether the weight of the desiccant has been reduced to a second preset weight value according to the weight signal obtained from the weight sensor 22; in this embodiment, the second preset weight value can be The first preset weight values are the same or different. Accordingly, when the desiccant 211 is reduced in weight to the second predetermined weight value due to a decrease in the moisture content, it indicates that the desiccant 211 has recovered the water absorption capacity, and at this time, the control unit 24 turns off the heater 23 to stop the desiccant 211. heating.
請參閱圖4至圖7，以下將進一步說明裝置本體21的技術細節，以及其與重量感測器22、加熱器23、控制單元24及溫濕度 感測器26之間的相對關係。如上述圖式所示，裝置本體21主要包括一內管212、一外管213及一導熱結構214。其中，內管212具有一用以填充乾燥劑211的網體，外管213圍繞內管212設置，且外管213與內管212之間形成有一導氣空間215。導熱結構214設置於內管212的內側，且由多個導熱板2141所構成，而加熱器23可設置於任一個導熱板2141上，以將熱量均勻傳遞給乾燥劑211。 Referring to FIG. 4 to FIG. 7 , the technical details of the device body 21 and its comparison with the weight sensor 22 , the heater 23 , the control unit 24 , and the temperature and humidity will be further described below . The relative relationship between the sensors 26. As shown in the above figure, the device body 21 mainly includes an inner tube 212, an outer tube 213 and a heat conducting structure 214. The inner tube 212 has a mesh body for filling the desiccant 211. The outer tube 213 is disposed around the inner tube 212, and a gas guiding space 215 is formed between the outer tube 213 and the inner tube 212. The heat conducting structure 214 is disposed on the inner side of the inner tube 212 and is composed of a plurality of heat conducting plates 2141, and the heater 23 may be disposed on any of the heat conducting plates 2141 to uniformly transfer heat to the desiccant 211.
裝置本體21的下方為空氣入口端20a，上方為空氣出口端20b，空氣入口端20a通過一蓋合於裝置本體21下方的下蓋(圖中未標號)與外部氣體連通，且重量感測器22可定位於下蓋內。空氣入口端20b通過一蓋合於裝置本體21上方的上蓋(圖中未標號)與變壓器1氣體連通，且溫濕度感測器26可定位於上蓋內。更詳細的內容可參考相同申請人的我國第I563521號專利案。 Below the device body 21 is an air inlet end 20a, and above is an air outlet end 20b. The air inlet end 20a communicates with external air through a lower cover (not labeled) under the device body 21, and the weight sensor 22 can be positioned inside the lower cover. The air inlet end 20b is in gas communication with the transformer 1 through an upper cover (not labeled) that covers the upper portion of the device body 21, and the temperature and humidity sensor 26 can be positioned in the upper cover. For more details, please refer to the same applicant's patent No. I563521.
請參閱圖8至圖11，本創作的變壓器呼吸乾燥系統Z的具體實施方式已詳述於上，而本創作還另外衍生出應用於變壓器的空氣乾燥裝置之控制方法。如圖8所示，首先，在步驟S1中，偵測乾燥劑的重量；此後，在步驟S2中，判斷乾燥劑的重量是否達到第一預設重量值；若乾燥劑的重量已達到此第一預設重量值，則進入步驟S3，進一步判斷變壓器為進氣狀態或排氣狀態；若變壓器為排氣狀態，則進入步驟S4，對乾燥劑進行加熱。 Referring to FIG. 8 to FIG. 11, the specific embodiment of the transformer breathing and drying system Z of the present invention has been described in detail above, and the present invention further derives a control method for the air drying device applied to the transformer. As shown in FIG. 8, first, in step S1, the weight of the desiccant is detected; thereafter, in step S2, it is determined whether the weight of the desiccant reaches the first predetermined weight value; if the weight of the desiccant has reached this level If a predetermined weight value is reached, the process proceeds to step S3, and it is further determined that the transformer is in an intake state or an exhaust state; if the transformer is in an exhaust state, the process proceeds to step S4 to heat the desiccant.
更進一步地，步驟S3是根據變壓器是否處於一特定升溫模式，來判斷變壓器是否為排氣狀態。如圖9所示，首先，在步驟S31中，週期性地偵測變壓器的溫度，以得到多個固定時間段的多個平均溫度值；此後，在步驟S32中，確認任一個固定時間段的平均溫度值皆大於前一個固定時間段的平均溫度值；此後，在步驟S33中，確認最後一個固定時間段的平均溫度值與第一個固定時間段的平均溫度值的差值大於或等於一預定溫度差值。當上述條件都滿足時，即認定變壓器是處於此特定升溫模式。 Further, step S3 is to determine whether the transformer is in an exhaust state according to whether the transformer is in a specific heating mode. As shown in FIG. 9, first, in step S31, the temperature of the transformer is periodically detected to obtain a plurality of average temperature values for a plurality of fixed time periods; thereafter, in step S32, any fixed time period is confirmed. The average temperature value is greater than the average temperature value of the previous fixed time period; thereafter, in step S33, it is confirmed that the difference between the average temperature value of the last fixed time period and the average temperature value of the first fixed time period is greater than or equal to one. The predetermined temperature difference. When all of the above conditions are met, it is determined that the transformer is in this particular heating mode.
更進一步地，步驟S4還包括通過濕度控制條件實現的及時中斷對乾燥劑加熱的機制。如圖10所示，首先，在步驟S41中，偵測空氣乾燥裝置的空氣出口端的空氣濕度；此後，在步驟S42中，判斷空氣出口端的空氣濕度是否高於一預設濕度值；若空氣出口端的空氣濕度已高於此預設濕度值，則進入步驟S43，停止對乾燥劑加熱。 Further, step S4 further includes a mechanism for promptly interrupting the heating of the desiccant by the humidity control condition. As shown in FIG. 10, first, in step S41, the air humidity at the air outlet end of the air drying device is detected; thereafter, in step S42, it is determined whether the air humidity at the air outlet end is higher than a preset humidity value; if the air outlet If the air humidity at the end is higher than the preset humidity value, the process proceeds to step S43 to stop heating the desiccant.
更進一步地，在步驟S4之後，還包括通過重量控制條件實現的及時中斷對乾燥劑加熱的機制。如圖11所示，首先，在步驟S44中，偵測乾燥劑的重量；此後，在步驟S45中，判斷乾燥劑的重量是否減少到第二預設重量值；若乾燥劑的重量已減少到此第二預設重量值，則進入步驟S46，停止對乾燥劑加熱。 Further, after step S4, a mechanism for promptly interrupting the heating of the desiccant by weight control conditions is further included. As shown in FIG. 11, first, in step S44, the weight of the desiccant is detected; thereafter, in step S45, it is determined whether the weight of the desiccant is reduced to a second predetermined weight value; if the weight of the desiccant has been reduced to The second preset weight value proceeds to step S46 to stop heating the desiccant.
圖4至圖7中各步驟可以通過多個程式碼或電路來實現，本創作沒有特別限制。此外，圖4至圖7中各步驟之間可以加入其他步驟。 The steps in FIGS. 4 to 7 can be implemented by a plurality of codes or circuits, and the creation is not particularly limited. In addition, other steps can be added between the steps in FIGS. 4 to 7.
[實施例的有益效果] [Advantageous Effects of Embodiments]
本創作的其中一有益效果在於，本創作所提供的變壓器呼吸乾燥系統，其能通過“控制單元用以判斷乾燥劑的重量是否達到第一預設重量值，若乾燥劑的重量達到第一預設重量值，則控制單元進一步判斷變壓器為進氣狀態或排氣狀態”以及“若變壓器為排氣狀態，則控制單元啟動加熱器，以去除乾燥劑所吸收的水分”的技術方案，以防止從乾燥劑中蒸發出來的水分隨著氣流進入變壓器而引起故障發生，使變壓器的使用壽命得以延長。 One of the beneficial effects of the present invention is that the transformer breathing drying system provided by the present invention can pass the "control unit to determine whether the weight of the desiccant reaches the first preset weight value, and if the weight of the desiccant reaches the first pre- If the weight value is set, the control unit further determines whether the transformer is in the intake state or the exhaust state" and "if the transformer is in the exhaust state, the control unit activates the heater to remove the moisture absorbed by the desiccant" to prevent The moisture evaporating from the desiccant causes a failure as the airflow enters the transformer, which extends the life of the transformer.
更進一步來說，本創作還加入了及時中斷對乾燥劑加熱的機制，而此機制可通過加入一濕度控制條件或一重量控制條件來實現，以因應系統中氣體的流動方向突然發生改變的情況，以及避免不必要的加熱造成能源浪費。 Furthermore, this creation also incorporates a mechanism to interrupt the heating of the desiccant in a timely manner, and this mechanism can be achieved by adding a humidity control condition or a weight control condition in response to a sudden change in the flow direction of the gas in the system. And avoid unnecessary heating that causes energy waste.
以上所公開的內容僅為本創作的優選可行實施例，並非因此 侷限本創作的申請專利範圍，所以凡是運用本創作說明書及圖式內容所做的等效技術變化，均包含於本創作的申請專利範圍內。 The above disclosure is only a preferred possible embodiment of the present creation, and thus Limitation of the scope of patent application for this creation, so any equivalent technical changes made using this creation specification and schema content are included in the scope of the patent application of this creation.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW106219453U TWM558900U (en) | 2017-12-29 | 2017-12-29 | Breathing and drying system of transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW106219453U TWM558900U (en) | 2017-12-29 | 2017-12-29 | Breathing and drying system of transformer |
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| TWM558900U true TWM558900U (en) | 2018-04-21 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI661162B (en) * | 2017-12-29 | 2019-06-01 | 華城電機股份有限公司 | Air-drying system for transformer and control method of air-drying device thereof |
| US10612852B2 (en) | 2018-01-11 | 2020-04-07 | Fortune Electric Co., Ltd. | Transformer system and control method of air-drying device thereof |
| CN115127312A (en) * | 2022-06-29 | 2022-09-30 | 厦门海辰新能源科技有限公司 | Drying system, method for drying battery core, production process of battery and battery |
-
2017
- 2017-12-29 TW TW106219453U patent/TWM558900U/en unknown
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI661162B (en) * | 2017-12-29 | 2019-06-01 | 華城電機股份有限公司 | Air-drying system for transformer and control method of air-drying device thereof |
| US10612852B2 (en) | 2018-01-11 | 2020-04-07 | Fortune Electric Co., Ltd. | Transformer system and control method of air-drying device thereof |
| CN115127312A (en) * | 2022-06-29 | 2022-09-30 | 厦门海辰新能源科技有限公司 | Drying system, method for drying battery core, production process of battery and battery |
| CN115127312B (en) * | 2022-06-29 | 2023-09-08 | 厦门海辰储能科技股份有限公司 | Drying system, method for drying battery cell, production process of battery and battery |
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