3results about How to "Avoid pressure rises" patented technology

The utility model belongs to the technical field of glue supply equipment, disclose glue supply device. Glue supply device includes glue supply jar, glue supply pipeline, filter and glue supply pump, glue supply jar is used for storing glue, one end of glue supply pipeline communicates with the export of glue supply jar, the other end communicates with the import of filter, glue supply pump sets up on glue supply pipeline, glue supply pump is used for providing conveying power for glue, pressure regulating mechanism includes reflux pipeline and pressure control valve, one end of reflux pipeline communicates with the export of glue supply pump, the other end communicates with the import of glue supply pump, pressure control valve sets up on reflux pipeline, pressure control valve is used for opening when the pressure in glue supply pipeline reaches preset pressure threshold, to make the glue from the export of glue supply pump reflux to the import of glue supply pump through reflux pipeline, thereby avoid the problem of pressure rise caused by filter blockage, effectively reduce the load pressure of glue supply pump, prevent the damage of glue supply pump from overloading, prolong the service life of glue supply pump.

The invention provides an integrated liquid helium loading system which is integrated with a helium liquefier, a liquid helium distribution valve box, a liquid helium container, a helium pressurizing unit, a low-temperature helium rewarming unit, a gas containing and purifying unit and a liquid helium filling and transferring control unit. Through cooperation of the multi-channel composite low-temperature transmission pipeline and the liquid helium transmission pipeline, intelligent regulation and control of various working modes of gas purification, pre-cooling, liquid helium accumulated liquid filling and transfer injection loading of the loading system can be achieved, the transfer injection process of liquid helium to other multiple containers can be achieved while the liquid helium is filled, large loss and waste of the liquid helium cannot be caused, and the working efficiency of the loading system is improved. Potential safety hazards such as pressure rise of a container in the liquid helium transfer injection process can be avoided, so that safe and effective distribution and efficient transfer injection of the liquid helium are realized; and meanwhile, the low-temperature helium gas in the filling and transferring processes returns to the helium liquefier, so that the cold energy of the low-temperature helium gas in the filling and transferring processes can be effectively utilized.

This utility model discloses a dust removal and cooling device for high-dust, high-concentration, ultra-high-temperature hydrogen gas, used for dust removal and cooling of the cracked gas produced by methane cracking for hydrogen production. It includes a dust collector and a cooling device. The dust collector comprises a gravity dust collection box and a water tank, with the gravity dust collection box nested within the water tank. The gravity dust collection box is used to deposit carbon powder in the cracked gas and has an ash hopper at its bottom. The water tank cools the gas entering the gravity dust collection box by supplying circulating water. The cooling device cools the cracked gas after dust removal by supplying circulating water. This dust removal and cooling device effectively solves the technical problems existing in the current methane cracking for hydrogen production process, such as difficulty in carbon-hydrogen separation under high dust, high concentration, and ultra-high temperature conditions, carbon powder blockage during hydrogen cooling, and difficulty in collecting carbon powder after high-temperature dust removal. The cracked gas undergoes subsequent cooling treatment only after a large amount of carbon powder is removed and after initial cooling and deceleration, which reduces the risk of blockage in the cooler.