安全阀

Figure 31 is a safety valve for overpressure protection of steam boiler s operating up to 250 psi.

型号31安全阀适用于工作压力高达250psi的蒸汽锅炉的超压保护。

It has the relief valve to protect from overpressure.

设置有安全阀，为系统提供过压保护。

As the pressure of pipeline system overtop the rated pressure, safety valve be opened up, then liquid begin to circulate in pump, insuring safety.

当出口管路系统压力超出已设定的额定压力时，安全阀自动打开，液体在泵内循环，确保系统安全。

The degree that the strainer blocks up may show out on the piezometer in filtering oil vehicle running process , respond to the strainer cleaning or changing a strainer in time (to have all filtering oil vehicle special use but be for replacement's using while pressure reaches 0.35 MPa,order if necessaries is other), Gage pressure continues rising when exceeding 0.4 MPa , just meeting proper motion opens a relief valve , part oil liquid essence fliteration does not pass henceforth , returns to an oil pump directly attract the oil cavity, therefore filtering oil vehicle output rate of flow just is able to come down, to play filter oil vehicle's to avoiding damaging role.

在滤油车运行过程中滤芯堵塞的程度可在压力表上显示出，当压力达到0.35MPa时，应及时清洗或更换滤芯(备有滤油车专用滤芯可供更换用，如需可另外订购)，表压继续上升超过0.4MPa时，安全阀便会自行开启，此后部分油液不经过精过滤，直接回到油泵吸油腔，所以滤油车的输出流量便会下降，以起到避免损坏滤油车的作用。

Steam boiler or steam pipe wrench for general use is not closed with a safety valve.

蒸汽锅炉或蒸汽管道一般用不封闭带扳手全启式安全阀。

NOTE: DO NOT USE A PIPE WRENCH TO REMOVE THE RELIEF VALVE ASSEMBLY FROM THE BACKFLOW PREVENTER.

注意：不要使用管钳从防回流阀上拆卸安全阀总成。

Through comparative Analysis on simulator tests, precautions for verification tests of the calibration pressure of main steam safety valve are presented, increasing the levels of steam generators and pressurizer can prolong the SI actuation time greatly.

通过模拟机试验比较分析，提出热停堆状态下进行主蒸汽安全阀定值校验的安全措施，在校验试验前提高蒸汽发生器和稳压器的水位可以大大延长发生安全注入动作的时间。

In addition, there is a phenomenon that is the valve pressure pulse wave, highly volatile.

此外，还有一种现象，就是阀后压力脉冲波动，安全阀极不稳定。

Reattach the relief valve hose to the elbow in the bottom flange cover.

重新将安全阀软管接到底部法兰盖内的弯头上。

Product description: ZT1-00 laboratory digester Characteristic: Both digester body and cover adopt high-quality stainless steel; digester body is linked with gear speed transmission to do rectilinear motion; Temperature control adopts intelligent PID, have function of short circuit, break, over-temperature warning, high precision of observing and controlling, over-pressure relief valve to release gas automatically; digester body and digester cover are double sealed, safe and reliable; Adopt high-quality moderating machine transmission, operate steadily, low noises.

产品说明： ZT1-00型电热蒸煮锅特点：锅体、锅盖全部采用优质不锈钢制作；齿轮变速机构与锅体连成一体直线运动；温度控制采用智能型 PID控制，并具有短路、断线、超温报警功能，测控精度高，超压安全阀自动放汽；锅体、锅盖采用双密封，安全可靠；采用高品质减速机传动，运转平稳，噪音小。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。