公开(公告)号：EP2017033A3

公开(公告)日：2009-06-24

申请号：EP08425463.0

申请日：2008-07-02

申请人： Odori, Mauro ,  Odori, Enrico

发明人： Odori, Mauro ,  Odori, Enrico

IPC分类号： B23K37/00 ,  F16L55/18

CPC分类号： B23K5/22 ,  B23K37/006

摘要： SAFE WELDING SYSTEM is a device destined to increase safety working conditions for intervention of installation, repair, maintenance on low pressure gas methane supply pipes. The problem to be solved is the management of the danger caused by the eventual burst of the pneumatic plugs (a couple for both sides of the intervention area) used for plugging low pressure methane flow inside low pressure (0,02 BAR) ducts: this event can make arrive the methane flow in the intervention area with possible creation of explosive air methane mixtures during welding operation.
SAFE WELDING SYSTEM is able to detect, by means of electronic pressure sensors mounted on the inflation device of the pneumatic plugs (which have an internal by-pass to let nitrogen injection inside the pipe), inflating pressure values of the plugs: if one of the plugs is damaged (because of roughness of pipe internal walls or a bad plug insertion, or crushing due to over pressure conditions outside the plug) the related pressure sensor sends an electric signal to the Electronic Rack which will automatically activate an acoustic alert, brake the electrical supply of the welding machine and, if a frontside plugs has burst (the nearest of the couple to the intervention area), let 8-10 BAR nitrogen flows (through the by-pass of the plugs) able to avoid potentially explosive air-methane mixtures (see DWG 1).
In common operating, by now, on this kind of interventions no automatic control on the damage state of the plugs is performed, neither seems to have been implemented any automatic kind of intervention able to avoid the potentially devastating effects of the burst of a couple of plugs (methane flow on the intervention area): the management of the danger is totally demanded to skill and experience of operators.

公开(公告)号：EP2017033A2

公开(公告)日：2009-01-21

申请号：EP08425463.0

申请日：2008-07-02

申请人： Odori, Mauro ,  Odori, Enrico

发明人： Odori, Mauro ,  Odori, Enrico

IPC分类号： B23K37/00 ,  F16L55/18

CPC分类号： B23K5/22 ,  B23K37/006

摘要： SAFE WELDING SYSTEM is a device destined to increase safety working conditions for intervention of installation, repair, maintenance on low pressure gas methane supply pipes. The problem to be solved is the management of the danger caused by the eventual burst of the pneumatic plugs (a couple for both sides of the intervention area) used for plugging low pressure methane flow inside low pressure (0,02 BAR) ducts: this event can make arrive the methane flow in the intervention area with possible creation of explosive air methane mixtures during welding operation.
SAFE WELDING SYSTEM is able to detect, by means of electronic pressure sensors mounted on the inflation device of the pneumatic plugs (which have an internal by-pass to let nitrogen injection inside the pipe), inflating pressure values of the plugs: if one of the plugs is damaged (because of roughness of pipe internal walls or a bad plug insertion, or crushing due to over pressure conditions outside the plug) the related pressure sensor sends an electric signal to the Electronic Rack which will automatically activate an acoustic alert, brake the electrical supply of the welding machine and, if a frontside plugs has burst (the nearest of the couple to the intervention area), let 8-10 BAR nitrogen flows (through the by-pass of the plugs) able to avoid potentially explosive air-methane mixtures (see DWG 1).
In common operating, by now, on this kind of interventions no automatic control on the damage state of the plugs is performed, neither seems to have been implemented any automatic kind of intervention able to avoid the potentially devastating effects of the burst of a couple of plugs (methane flow on the intervention area): the management of the danger is totally demanded to skill and experience of operators.

摘要翻译： SAFE焊接系统是注定提高安全性的工作条件对低压气体甲烷供给管安装，维修，保养的干预的装置。 要解决的问题是通过气动塞的最终脉冲串（一对夫妇的介入区域的bothsides）用于堵塞低压（0.02 BAR）内低压甲烷流动通道引起的危险的管理：这种 事件可以使焊接操作过程中到达与可能产生爆炸性气体混合物甲烷的介入区域的甲烷流量。 SAFE焊接系统能够检测到，由安装在气动塞（其具有在内部旁通让管内注入氮气）的充气装置上的电子压力传感器的方式，膨胀所述插头的压力值：如果一个 插头被损坏相关压力传感器发送到电信号给电子机架whichwill上声警报自动激活，制动器（因为管内壁的粗糙度或坏的插头插入或插塞以外，由于粉碎到过压条件的） 焊接机的电供应和，如果前侧插头已经破裂（最近的夫妇到介入区域的），让8-10巴的氮气流（通过旁通插头的），其能够避免潜在的爆炸性空气 甲烷的混合物（参见DWG 1）。 在常见的操作，这时，对这种干预对插头的损坏状态没有自动进行控制，既不似乎已经实现的任何自动形式的干预能够避免一对夫妇的突发的潜在破坏性影响 插头（在干预区域甲烷流量）：危险的管理是完全需要对技术和运营经验。

公开(公告)号：EP2017521A3

公开(公告)日：2009-06-17

申请号：EP08425153.7

申请日：2008-03-12

申请人： Odori, Mauro ,  Odori, Enrico

发明人： Odori, Mauro ,  Odori, Enrico

IPC分类号： F16L55/18 ,  B23K37/00

CPC分类号： B23K5/22 ,  B23K37/006

摘要： SAFE WELDING SYSTEM is a device destined to increase safety working conditions for intervention of Installation, repair, maintenance on gas methane supply pipings. The problem to solve is the management of methane leakages through plugging (made by proper plugging machine available on the market) inside the pipes: leakages can create in the intervention area (where pipe cutting and welding is performed) explosive mixtures in air. The danger of ignition and explosion of these mixtures by means of welding electric arc is evident. These potentially explosive mixtures are made inert injecting nitrogen in the intervention area.
SAFE WELDING SYSTEM operates an analysis of %VOL methane inside the pipe between the plug and the intervention point by means of a specific methane measuring device. The electrical signal of the measurement done (proportional to the value of %VOL) is sent to the Electronic Rack: according to the signal received, the electronic rack regulates, continuously, the opening of the proportional electric valve mounted on Nitrogen Header: in this way the quantity of nitrogen injected in the intervention area is proportional to the methane leakage and of such an entity to make inert the mixture air-methane. In this way, welding operations can be performed in safe working conditions (see Dwg. 1).
In common operating, by now, quantitative and continuous measurements of methane leakages through pluggings are not performed: the determination of the right nitrogen quantity to inject inside the pipe depends on the operators skill and experience, with an evident hazard of undervaluing (inadequate nitrogen injection in potentially explosive conditions) or overvaluing (too large nitrogen injection can prematurely exhaust nitrogen stored by the working yard) the problem.

公开(公告)号：EP2017521A2

公开(公告)日：2009-01-21

申请号：EP08425153.7

申请日：2008-03-12

申请人： Odori, Mauro ,  Odori, Enrico

发明人： Odori, Mauro ,  Odori, Enrico

IPC分类号： F16L55/18 ,  B23K37/00

CPC分类号： B23K5/22 ,  B23K37/006

摘要： SAFE WELDING SYSTEM is a device destined to increase safety working conditions for intervention of Installation, repair, maintenance on gas methane supply pipings. The problem to solve is the management of methane leakages through plugging (made by proper plugging machine available on the market) inside the pipes: leakages can create in the intervention area (where pipe cutting and welding is performed) explosive mixtures in air. The danger of ignition and explosion of these mixtures by means of welding electric arc is evident. These potentially explosive mixtures are made inert injecting nitrogen in the intervention area.
SAFE WELDING SYSTEM operates an analysis of %VOL methane inside the pipe between the plug and the intervention point by means of a specific methane measuring device. The electrical signal of the measurement done (proportional to the value of %VOL) is sent to the Electronic Rack: according to the signal received, the electronic rack regulates, continuously, the opening of the proportional electric valve mounted on Nitrogen Header: in this way the quantity of nitrogen injected in the intervention area is proportional to the methane leakage and of such an entity to make inert the mixture air-methane. In this way, welding operations can be performed in safe working conditions (see Dwg. 1).
In common operating, by now, quantitative and continuous measurements of methane leakages through pluggings are not performed: the determination of the right nitrogen quantity to inject inside the pipe depends on the operators skill and experience, with an evident hazard of undervaluing (inadequate nitrogen injection in potentially explosive conditions) or overvaluing (too large nitrogen injection can prematurely exhaust nitrogen stored by the working yard) the problem.

摘要翻译： 外管局焊接系统是注定要增加安全的工作条件，安装，维修，保养上的甲烷气体供应管道的干预装置。 为了解决这个问题是甲烷泄漏通过堵塞管内的管理（由市场上可获得的合适的堵塞机器制造）：泄漏可以在干预区域（其中，管切割和焊接进行）在空气中爆炸性混合物创建。 点火和论文混合物的爆炸借助于焊接电弧的危险是显而易见的。 这些潜在的爆炸性混合物是惰性的介入区域注入氮气制成。 SAFE焊接系统通过特定的甲烷测量装置上的插头和干预点之间的配管内％VOL甲烷的分析动作。 完成（正比于％VOL的值）测量的电信号被发送到电子机架：根据接收的信号，该电子机架调控，接着，安装在氮头中的比例电动阀的开度：在本 方式，在干预区域注入的氮的量正比于甲烷泄漏并寻求实体，使惰性混合气甲烷的。 通过这种方式，焊接操作可以在安全的工作条件（见的Dwg 1）执行。 在常见的操作，这时，通过插头甲烷泄漏的定量和连续的测量去不被执行：右氮气量的确定，以在管内注入依赖于运营商的技术和经验，与低估的明显风险（氮气注入不足 在潜在爆炸性条件下）或高估（太大氮气注入可以由工作码存储过早排气中的氮）的麻烦。