201202121 六、發明說明： 【發明所屬之技術領域】 本發明是關於船舶、發電機等鍋爐（以下，稱爲「船 舶等」）的燃料油移送裝置，特別是用來防止燃料油淨化 槽及/或燃料油提供槽中被加熱的燃料油於停止中的自然 流下或者逆流的燃料油移送裝置。 【先前技術】 在船舶等中’在對引擎供給燃料油時，通常，首先是 藉由移送栗使燃料油從燃料油儲藏槽通過移送管而送達燃 料油淨化槽，接著，從該燃料油淨化槽送達燃料油提供槽 (燃料油小量排出槽）’再從該處將燃料油供給至引擎。 此時’燃料油儲藏槽中的燃料油爲了降低黏度以便於移送 ，則有必要加溫。 就具有該種加溫設備的燃料油移送裝置而言，傳統上 所熟知的裝置’是不具備第1圖中所示之閥15的裝置， 換言之’是具備：燃料油儲藏槽1;和燃料油淨化槽3， 該燃料油淨化槽3具備圖面中未顯示的加熱裝置，且該加 熱裝置是經由移送管2而與燃料由儲藏槽1連通；和移送 槽4’該移送槽4是用來將燃料油儲藏槽1中的燃料油移 送至燃料油淨化槽3 ;和燃料油提供槽5，該燃料油提供 槽5連通於燃料油淨化槽3 ;和吸入管6，該吸入管6是 用來使燃料油淨化槽3與燃料油提供槽5的其中任一個、 或者雙方連通於燃料油儲藏槽1;及流下栗7，該流下栗7 -5- 201202121 被設於吸入管6，且可使燃料油淨化槽3與燃料油提供槽 5的任何一個、或者雙方中被加熱的燃料油，流下至燃料 油儲藏槽1。在第1圖中，8是加熱器，9是溫度感測器， 10、 11、 12、 13 爲閥。 在不具有上述閥15之第1圖的裝置中，燃料油淨化 槽3中的燃料油是由圖面中未顯示的加熱裝置所加熱，接 著，貝圖面中未顯示的燃料油清淨機所清淨而送入燃料油 提供槽5，並從該處分配供給至圖面中未顯示的主機、輔 機（auxiliary machine)、鍋爐等。同時，該經加熱之燃料 油的一部分，是藉由流下泵7的作動，通過燃料油儲藏槽 1中的吸入主管14而流下至燃料油儲藏槽1，進而對該槽 1中的燃料油加溫。 在不具上述閥15之第1圖的裝置中，當經加熱之燃 料油的一部分從燃料油淨化槽3或者燃料油提供槽5回到 燃料油儲藏槽1而對該槽1中的燃料油加溫時，該回流量 及溫度，必須對應於吸入管6和移送管2的長度、或者海 水、或外部空氣的溫度變化而變化。 換言之’在「回流之被加熱的燃料油」的熱量較適當 値更多的場合中，朝海水或外部空氣散熱的熱量變得更多 ，而在較少的場合中’則變成無法移送所需量的燃料油， 因此，必須將回流之被加熱燃料油的量與溫度保持成適當 〇 但是，在不具上述閥15之第1圖的裝置中，當淨化 槽及/或提供槽中之經加熱的燃料油的一部分流下至燃料 201202121 油儲藏槽時’將導致燃料油不會回流至燃料油儲藏槽而朝 移送管方向逆流。此外，當將來自於燃料油儲藏槽的燃料 油送往移送管方向時，導致空氣的汽泡產生。 不僅如此，僅在移送管2具備上述閥15之第1圖的 裝置也已被大眾所知悉。（日本特許第3807597號） 該燃料油移送裝置即使在停止中，大部分是入口側（ 吸入側）的壓力高，而出口側（吐出側）的壓力低。這是 起因於燃料油淨化槽（泵的吸入側）較燃料油儲藏槽（泵 的吐出側）更高的緣故。因此，即使裝置在停止中，也將 因爲該壓力，而使油不經意地從淨化槽及/或提供槽自然 地流下至儲藏槽。 [專利文獻1]日本特許第3 8075 97號 【發明內容】 [發明欲解決之課題] 有鑑於此，本發明所欲解決的課題在於：提供一種用 來防止「燃料油淨化槽及/或燃料油提供槽中經加熱的燃 料油」在運轉停止中的自然流下或逆流，而改良存在於前 述習知技術之缺點的燃料油移送裝置。 [解決課題之手段] 爲了解決上述的課題，根據本發明，是具備：「具備 吸入主管」的燃料油儲藏槽；和「透過移送管而連通至該 儲藏槽」的燃料油淨化槽；和「被設於該移送管，且通過 201202121 移送管將前述儲藏槽中的燃料油移送至前述淨化槽」的移 送泵；和「與前述淨化槽連通」的燃料油提供槽；和「將 前述淨化槽及/或前述提供槽，與前述儲藏槽連通」的吸 入管；及「被配置於該吸入管，可使前述淨化槽及/或前 述提供槽中經加熱的燃料油，流下至前述儲藏槽」的流下 泵；且通過吸入主管，使前述經加熱的燃料油流下混合至 前述儲藏槽的燃料油，而對前述儲藏槽中的燃料油加熱的 燃料油移送裝置，其特徵爲：在較前述移送管的移送泵更 下游側設置「保持著彈簧」的閥，且更進一步在較吸入管 的流下泵更下游側設置「保持著彈簧」的閥，前述彈簧可 設定成任意的壓力，保持著該彈簧的閥，是藉由彈簧的按 壓力而使閥按壓部抵接於閥座，而防止經加熱的燃料油朝 移送管的逆流，且更進一步地防止朝吸入管的流下，藉此 ，前述淨化槽及/或提供槽中經加熱的燃料油不會逆流至 移送管，且前述淨化槽及/或提供槽中經加熱的燃料油不 會流下至吸入管，而在防止自然流下的狀態下移送至前述 儲藏槽。 [發明的效果] 上述的本發明，由於在較移送管的移送泵更下游側設 置「保持著彈簧」的閥，且更進一步在較吸入管的流下泵 更下游側設置「保持著彈簧」的閥，因此可防止經加熱的 燃料油朝移送管的逆流，並可防止朝吸入管的流下，藉此 ’淨化槽及/或提供槽中經加熱的燃料油不會朝移送管逆 -8- 201202121 流’且不會朝吸入管流下，而防止自然流下。 【實施方式】 在第1圖中，本發明的燃料油移送裝置具備：「具備 吸入主管14」的燃料油儲藏槽1;和「透過移送管2而連 通於該儲藏槽1」的燃料油淨化槽3;和「被設於移送管2 ，且通過該移送管2而將儲藏槽1中的燃料油移送至淨化 槽3」的移送泵4;和「與淨化槽3連通」的燃料油提供 槽5;和「使淨化槽3及/或提供槽5，與儲藏槽1連通」 的吸入管6;及「被配置於該吸入管6，可使淨化槽3及/ 或提供槽5中經加熱的燃料油流下至儲藏槽1」的流下泵 7 ;且使經加熱燃料油通過吸入主管1 4而流下混合至儲藏 槽1的燃料油，進而對儲藏槽1中的燃料油加熱。第1圖 中，8是加熱器，9是溫度感測器，10' 11、12、13爲閥 〇 接著，在上述的本發明裝置中，改良的要點在於··在 較移送管2的移送泵4更下游側設置「保持著彈簧16」的 閥15，且更進一步在較吸入管6的流下泵7更下游側設置 「保持著彈簧16」的閥15，藉此，達成以下的特徵：淨 化槽3及/或提供槽5中經加熱的燃料油不會朝移送管2 的方向逆流，不僅如此，前述淨化槽3及/或提供槽5中 經加熱的燃料油不會流下至吸入管6，既可防止自然流下 ，又能流下至前述儲藏槽1。 第2圖是顯示閥1 5之關閉狀態的剖面圖’第3圖是 -9- 201202121 開啓狀態的剖面圖，運轉停止中，是如第2圖所示，將手 柄18旋緊，而使閥按壓部21抵接於閥座22»在該狀態下 ，來自於入口 19的燃料油不會朝出口 20行進（流動）。 運轉中，通常如第3圖所示，是將手柄1 8開啓（鬆開） ，而形成閥棒23上升至上方的狀態。在該狀態下，通常 也是藉由彈簧16的按壓力而透過墊片17將閥按壓部21 按壓於閥座22。因此閥按壓部21是抵接於閥座22，來自 於入口 19的燃料油則被閥按壓部21所阻止而無法通往出 口 20。因此，可防止「經加熱的燃料油朝移送管2的方向 逆流」，且可防止「經加熱的燃料油朝吸入管6的方向自 然流下」。同時，也導致「從燃料油儲藏槽1經由吸入主 管1 4所產生的汽泡」破滅而消失。 彈簧16可設定爲任意的壓力，譬如：約〇.〇9 8 MPa . l.OKgf/cm2 (全開時）。藉此，來自於燃料油儲藏槽1之 經加熱的燃料油，則從入口 1 9將閥按壓部2 1推起而流向 出口 20方向。此時，因空氣所產生的汽泡也將由於壓力 而消失。 [產業上的利用性] 本發明的燃料油移送裝置，由於在較移送管2的移送 泵4、及較吸入管6的流下泵7更下游側，分別設置「保 持著彈簧1 6」的閥1 5，因此淨化槽3及/或提供槽5中經 加熱的燃料油不會朝移送管2逆流，且不會朝吸入管6自 然流下，而流下至前述儲藏槽，而且移送管2中的汽泡也 -10- 201202121 將自動地破滅消失，產業上的可利用性極高。 【圖式簡單說明】 第1圖：爲本發明燃料油移送裝置的流程圖。 第2圖：是本發明燃料油移送裝置所使用的閥的一個 具體例，爲關閉狀態的剖面圖。 第3圖：是本發明燃料油移送裝置所使用的閥的一個 具體例，爲開啓狀態的剖面圖。 【主要元件符號說明】 1 :燃料油儲藏槽 2 :移送管 3 :燃料油淨化槽 4 :移送泵 5 :燃料油提供槽 6 :吸入管 7 :流下（falling)泵 1 4 :吸入主管 15 :閥 1 6 :彈簧 17 :墊片 1 8 :手柄 19 :入口 20 :出口 -11 - 201202121 21 :閥按壓部 22 :閥座 23 :閥棒201202121 VI. Description of the Invention: [Technical Field] The present invention relates to a fuel oil transfer device for a boiler such as a ship or a generator (hereinafter referred to as "ship or the like"), and particularly for preventing a fuel oil purification tank and/or Or the fuel oil provides a natural flow of the heated fuel oil in the tank during the stop or a countercurrent flow of the fuel oil transfer device. [Prior Art] When supplying fuel oil to an engine in a ship or the like, usually, first, the fuel oil is sent from the fuel oil storage tank to the fuel oil purification tank through the transfer pipe by transferring the pump, and then, the fuel oil is purified from the fuel oil. The tank is supplied with a fuel oil supply tank (a small amount of fuel oil discharge tank), from which fuel oil is supplied to the engine. At this time, in order to reduce the viscosity for the fuel oil in the fuel oil storage tank, it is necessary to increase the temperature. In the case of a fuel oil transfer device having such a warming device, a device which is conventionally known is a device which does not have the valve 15 shown in Fig. 1, in other words, is provided with: a fuel oil storage tank 1; The oil purification tank 3 includes a heating device not shown in the drawing, and the heating device communicates with the fuel through the storage tank 1 via the transfer pipe 2; and the transfer tank 4' uses the transfer tank 4 The fuel oil in the fuel oil storage tank 1 is transferred to the fuel oil purification tank 3; and the fuel oil supply tank 5 is connected to the fuel oil purification tank 3; and the suction pipe 6, which is the suction pipe 6 And the fuel oil supply tank 5 and the fuel oil supply tank 5 are connected to the fuel oil storage tank 1; and the down pump 7 is provided, and the flow pump 7-5-201202121 is provided in the suction pipe 6, and Any one of the fuel oil purification tank 3 and the fuel oil supply tank 5 or the heated fuel oil from both of them may be discharged to the fuel oil storage tank 1. In Fig. 1, 8 is a heater, 9 is a temperature sensor, and 10, 11, 12, 13 are valves. In the apparatus of Fig. 1 which does not have the above-described valve 15, the fuel oil in the fuel oil purification tank 3 is heated by a heating device not shown in the drawing, and then, the fuel oil cleaner is not shown in the top surface. The fuel oil supply tank 5 is cleaned and supplied to the main unit, an auxiliary machine, a boiler, and the like which are not shown in the drawing. At the same time, a part of the heated fuel oil is discharged to the fuel oil storage tank 1 through the suction main pipe 14 in the fuel oil storage tank 1 by the operation of the down pump 7, and the fuel oil in the tank 1 is further added. temperature. In the apparatus of Fig. 1 which does not have the above-described valve 15, when a part of the heated fuel oil is returned from the fuel oil purification tank 3 or the fuel oil supply tank 5 to the fuel oil storage tank 1, the fuel oil in the tank 1 is added. At the time of warming, the return flow rate and temperature must be changed in accordance with the length of the suction pipe 6 and the transfer pipe 2, or the temperature change of the seawater or the outside air. In other words, in the case where the amount of heat of the "returned heated fuel oil" is more than appropriate, the amount of heat radiated toward the seawater or the outside air becomes more, and in less cases, it becomes impossible to transfer. The amount of fuel oil, therefore, the amount and temperature of the heated fuel oil to be recirculated must be maintained as appropriate. However, in the apparatus of Figure 1 without the valve 15, the heating tank and/or the heating tank are heated. When a part of the fuel oil flows down to the fuel 201202121 oil storage tank, 'the fuel oil will not flow back to the fuel oil storage tank and will flow backward in the direction of the transfer pipe. Further, when the fuel oil from the fuel oil storage tank is sent to the direction of the transfer pipe, bubble generation of the air is caused. Moreover, the apparatus of the first drawing in which the transfer pipe 2 is provided with the above-described valve 15 has also been known to the public. (Japanese Patent No. 3807597) When the fuel oil transfer device is stopped, most of the pressure on the inlet side (suction side) is high, and the pressure on the outlet side (discharge side) is low. This is due to the fact that the fuel oil purification tank (the suction side of the pump) is higher than the fuel oil storage tank (the discharge side of the pump). Therefore, even if the apparatus is stopped, the oil will inadvertently flow down from the septic tank and/or the supply tank to the storage tank due to the pressure. [Patent Document 1] Japanese Patent No. 3 8075 97 [Disclosure] [Problem to be Solved by the Invention] In view of the above, an object of the present invention is to provide a method for preventing "fuel oil purification tank and/or fuel". The oil supply fuel oil in the tank provides a natural flow or countercurrent in the stop of operation, and the fuel oil transfer device existing in the disadvantages of the prior art described above is improved. [Means for Solving the Problems] In order to solve the above-described problems, the present invention provides a fuel oil storage tank having a "suction main pipe" and a fuel oil purifying tank that communicates with the storage tank through a transfer pipe; a transfer pump provided in the transfer pipe and transferring the fuel oil in the storage tank to the purification tank through the 201202121 transfer pipe; and a fuel oil supply groove in communication with the purification tank; and And/or the suction pipe that communicates with the storage tank; and "disposed on the suction pipe to allow the heated fuel oil in the purification tank and/or the supply tank to flow down to the storage tank" a downflow pump; and a fuel oil transfer device that heats the fuel oil in the storage tank by mixing the heated fuel oil into the storage tank by suctioning the main pipe, and is characterized in that: The transfer pump of the tube is provided with a "spring-holding" valve on the downstream side, and a valve that "holds the spring" is further disposed on the downstream side of the downflow pump of the suction pipe. The spring can be set to an arbitrary pressure, and the valve of the spring is held by the pressing force of the spring to abut the valve pressing portion against the valve seat, thereby preventing the reverse flow of the heated fuel oil toward the transfer pipe, and further Preventing the flow to the suction pipe, whereby the heated fuel oil in the purification tank and/or the supply tank does not flow back to the transfer pipe, and the heated fuel oil in the purification tank and/or the supply tank does not flow down to The tube is sucked and transferred to the aforementioned storage tank while being prevented from flowing naturally. [Effects of the Invention] In the above-described present invention, the valve holding the "spring" is provided on the downstream side of the transfer pump of the transfer pipe, and the "holding spring" is further provided on the downstream side of the down pump of the suction pipe. The valve thus prevents backflow of the heated fuel oil toward the transfer tube and prevents flow down the suction tube, whereby the 'purified tank and/or the heated fuel oil in the supply tank does not reverse the transfer tube-- 201202121 Flow ' does not flow down the suction pipe, preventing natural flow. [Embodiment] In the first embodiment, the fuel oil transfer device of the present invention includes: a fuel oil storage tank 1 including a suction main pipe 14; and a fuel oil purification "connecting to the storage tank 1 through the transfer pipe 2" The tank 3; and the transfer pump 4 which is provided in the transfer pipe 2 and transfers the fuel oil in the storage tank 1 to the purification tank 3 through the transfer pipe 2; and the fuel oil provided in the "communication tank 3" a tank 5; and a suction pipe 6 that "connects the purification tank 3 and/or the supply tank 5 to the storage tank 1"; and "disposed on the suction pipe 6, the purification tank 3 and/or the supply tank 5 can be provided. The heated fuel oil flows down to the downflow pump 7 of the storage tank 1", and the heated fuel oil is passed down through the suction main pipe 14 to the fuel oil mixed in the storage tank 1, and the fuel oil in the storage tank 1 is further heated. In Fig. 1, 8 is a heater, 9 is a temperature sensor, and 10' 11, 12, and 13 are valves. Next, in the above-described apparatus of the present invention, the point of improvement lies in the transfer of the transfer tube 2 Further, the pump 4 is provided with a valve 15 that "holds the spring 16" on the downstream side, and further has a valve 15 that "holds the spring 16" on the downstream side of the downflow pump 7 of the suction pipe 6, thereby achieving the following features: The purified fuel tank 3 and/or the heated fuel oil in the supply tank 5 does not flow backward in the direction of the transfer pipe 2, and the heated fuel oil in the purification tank 3 and/or the supply tank 5 does not flow down to the suction pipe. 6. It can prevent natural flow down and can flow down to the aforementioned storage tank 1. Fig. 2 is a cross-sectional view showing the closed state of the valve 15'. Fig. 3 is a cross-sectional view showing the open state of the -9-201202121. When the operation is stopped, as shown in Fig. 2, the handle 18 is tightened to make the valve The pressing portion 21 abuts against the valve seat 22». In this state, the fuel oil from the inlet 19 does not travel (flow) toward the outlet 20. In operation, as shown in Fig. 3, normally, the handle 18 is opened (released) to form a state in which the valve rod 23 is raised upward. In this state, the valve pressing portion 21 is normally pressed against the valve seat 22 through the spacer 17 by the pressing force of the spring 16. Therefore, the valve pressing portion 21 abuts against the valve seat 22, and the fuel oil from the inlet 19 is blocked by the valve pressing portion 21 and cannot be led to the outlet 20. Therefore, "the heated fuel oil flows backward in the direction of the transfer pipe 2" can be prevented, and "the heated fuel oil can naturally be prevented from flowing down in the direction of the suction pipe 6". At the same time, "the bubble generated from the fuel oil storage tank 1 through the suction main pipe 14" is broken and disappears. The spring 16 can be set to any pressure, for example: about 〇.〇9 8 MPa. l.OKgf/cm2 (when fully open). Thereby, the heated fuel oil from the fuel oil storage tank 1 pushes up the valve pressing portion 2 1 from the inlet 19 and flows in the direction of the outlet 20. At this time, the bubble generated by the air will also disappear due to the pressure. [Industrial Applicability] The fuel oil transfer device of the present invention is provided with a valve that "holds the spring 16" on the downstream side of the transfer pump 4 of the transfer pipe 2 and the downstream pump 7 of the suction pipe 6 1 5, therefore, the heated fuel oil in the septic tank 3 and/or the supply tank 5 does not flow back toward the transfer pipe 2, and does not naturally flow down the suction pipe 6, but flows down to the aforementioned storage tank, and is transferred to the storage pipe 2. The bubble is also -10- 201202121 will be automatically destroyed and disappeared, and the industrial availability is extremely high. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a flow chart of a fuel oil transfer device of the present invention. Fig. 2 is a cross-sectional view showing a specific example of a valve used in the fuel oil transfer device of the present invention. Fig. 3 is a cross-sectional view showing a specific example of a valve used in the fuel oil transfer device of the present invention. [Main component symbol description] 1 : Fuel oil storage tank 2 : Transfer pipe 3 : Fuel oil purification tank 4 : Transfer pump 5 : Fuel oil supply tank 6 : Suction pipe 7 : Falling pump 1 4 : Suction main pipe 15 : Valve 1 6 : Spring 17 : Shim 1 8 : Handle 19 : Inlet 20 : Outlet -11 - 201202121 21 : Valve pressing portion 22 : Seat 23 : Valve rod