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1. 发明专利

JPS58202064A High-speed fluid sprayer 失效
标题翻译：高速液体喷雾器
公开(公告)号：JPS58202064A
公开(公告)日：1983-11-25
申请号：JP8314982
申请日：1982-05-19
申请人： Hitachi Eng Co Ltd , Hitachi Ltd
发明人： SATOU HIROFUMI , ITOU HISAO
IPC分类号： B05B13/02
摘要： PURPOSE: To obtain the titled sprayer which can efficiently wash and coat the outer surface of piping provided in close vicinity to a sealed place, by adopting the constitution that a fluid is sprayed at a high speed through many water- supply nozzles in a cylindrical vessel.
CONSTITUTION: Piping 6 whose outer surface is to be washed is covered with a cylindrical vessel 5 in which a sparger 4 having many sparger holes 9 is provided. Water in a vessel 1 for a fluid is sprayed onto the outer surface of the piping 6 at a high speed with high pressure through a connecting hose 3 and the sparger 4 by a pump 2. At this time, the spraying is performed while moving the sparger 4 along the axial and circumferential directions of the piping 6, and the sprayed water is discharged through a discharging nozzle 7 and a hose 8 outside the cylindrical vessel 5. When the outer surface of the pipe is to be coated, paint instead of water is reserved in the vessel 1 for a fluid to perform the same operation as aforementioned one. Consequently, the works of washing and coating the outer surface of the piping provided in close vicinity of a sealed place can be efficiently performed without exerting any influence upon the other pipings, etc.
COPYRIGHT: (C)1983,JPO&Japio
摘要翻译：目的：为了获得能够有效地清洗和涂覆靠近密封处所的管道的外表面的标题喷雾器，采用通过圆柱形容器中的许多供水喷嘴高速喷射流体的构造。构成：其外表面要被清洗的管道6被圆柱形容器5覆盖，其中设置有具有许多喷射孔9的喷射器4。用于流体的容器1中的水通过连接软管3和喷雾器4通过泵2以高速高速喷射到管道6的外表面上。此时，在移动分配器4沿着管道6的轴向和周向方向，并且喷射的水通过排出喷嘴7和软管8排出到圆柱形容器5的外部。当管的外表面被涂覆时，涂漆而不是水在容器1中保留用于流体以执行与上述相同的操作。因此，可以有效地进行在密封处附近设置的管道的外表面的洗涤和涂布的工作，而不对其他管道等施加任何影响。

2. 发明专利

JPS60194203A Steam generator 失效
公开(公告)号：JPS60194203A
公开(公告)日：1985-10-02
申请号：JP4914284
申请日：1984-03-16
申请人： Hitachi Ltd , Hitachi Eng Co Ltd
发明人： SATOU HIROFUMI , SUMIDA NOBUO , SAITOU TAKASHI
IPC分类号： F22B37/54

3. 发明专利

JPS6040672A FINE MIST WATER SPRAYER 失效
公开(公告)号：JPS6040672A
公开(公告)日：1985-03-04
申请号：JP14642983
申请日：1983-08-12
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： SATOU HIROFUMI , ITOU HISAO , SAITOU TAKASHI
IPC分类号： B23K31/00 , B23K9/04 , B23K37/00
摘要： PURPOSE:To prevent underbead cracking that may arise in a single-layer stainless steel clad part by clad-welding the stainless steel to the inside surface of a pressure vessel then heating the clad part and cooling quickly said part. CONSTITUTION:Electricity is conducted from a high-frequency power source 7 for heating to a coil 1, then the coil 1 is heated by eddy current to heat the weld heat affected zone formed to a base metal in the stage of single-layer build-up welding to about >=800 deg.C. Fine mist water is then released from nozzles 3 disposed at an equal interval on a fine mist water spray ring 2 from a water storage tank 9 via a pump 8 and is sprayed uniformly onto the inside surface of the pressure vessel, by which the heat affected zone is quickly cooled from 800 deg.C to 500 deg.C.

4. 发明专利

JPS58132386A GROOVE SHAPE FOR WELD ZONE OF PIPE 失效
公开(公告)号：JPS58132386A
公开(公告)日：1983-08-06
申请号：JP1154682
申请日：1982-01-29
申请人： HITACHI LTD
发明人： SHIMIZU TASUKU , ENOMOTO KUNIO , ITOU HISAO , SATOU HIROFUMI
IPC分类号： B23K33/00
摘要： PURPOSE:To prevent remaining of blowholes generated in the stage of welding, and to elevate corrosion resistance of the inside surface of a pipe, by setting the length of a working part on the inside surface of the groove part of the pipe, to a specified value, when welding a horizontal pipe by means of water-cooling. CONSTITUTION:When welding a horizontal pipe by making water flow into the inside and cooling it, length L' of an inside surface clad-working part (DC working part) is set to L'>=1.8t1+70mm. (t1 denotes thickness of a Dc working part 3, in case of =2.3t1+60mm. in case when t1 is >=20mm.. Or in addition to a regular DC working part 3, a wide groove part 7 whose inside diameter is a little large is provided. Blowholes 6 generated in the stage of welding are all separated from the center of welding and remain, therefore, it is prevented that a weld is not cooled sufficiently due to existence of blowholes, and a drop of corrosion resistance due to insufficient cooling is prevented.

5. 发明专利

JPS58192691A Welding method of piping 失效
标题翻译：管道焊接方法
公开(公告)号：JPS58192691A
公开(公告)日：1983-11-10
申请号：JP7547082
申请日：1982-05-07
申请人： Hitachi Ltd
发明人： SHIMIZU TASUKU , ENOMOTO KUNIO , SATOU HIROFUMI
IPC分类号： B23K31/00 , B23K31/02 , B23K101/06 , B23K31/06
CPC分类号： B23K31/027
摘要： PURPOSE:To prevent very small bubble from ascending along the wall of steel pipes and flocculating in the top part thereof and to prevent the decrease in the heat transfer rate in a weld zone in a water-cooled welding method of the steel pipes, by regulating the flow rate of the water flowing in the pipe to a specific value or above. CONSTITUTION:In the case of adapting a water-cooled welding method for butt welding of steel pipes 1, the flow rate of the water flowing in the pipes 1 is kept at >=80mm./S. Ball-like solids 7 having the weight lighter than the specific gravity of water are further contained in flowing water 2 to tap the air bubble near the pipe wall and to prevent the stagnation thereof. According to this invention, the stagnation of the air bubble generated during water-cooled welding is prevented and the local decrease in the heat transfer rate is prevented. The temp. difference in the thickness direction which is the principle of the water- cooled welding method is thus assured and the residual stress in the inside surface of the pipe 1 is made compressive over the entire circumference of the pipe 1.
摘要翻译：目的：为了防止非常小的气泡沿着钢管的壁上升并在其顶部絮凝，并且防止在钢管的水冷焊接方法中焊接区中的传热速率的降低，通过调节在管道中流动的水的流量达到特定值或以上。构成：在适应钢管1的对接焊接的水冷焊接方法的情况下，流入管1的水的流量保持在= 80mm / S。具有比比重轻的重量的球状固体7进一步包含在流动水2中，以抽出管壁附近的气泡并防止其停滞。根据本发明，防止了在水冷焊接期间产生的气泡的停滞，并且防止了传热速率的局部降低。温度因此确保了作为水冷焊接方法的原理的厚度方向的差异，并且管1的内表面中的残余应力在管1的整个圆周上被压缩。

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