3results about How to "Avoid water damage" patented technology

This utility model relates to the field of urea injectors, specifically disclosing a liquid inlet cap sealing structure for a urea injection assembly, including: a water jacket assembly, a valve body, a liquid inlet cap, and a sealing part. The valve body is composed of a wiring part, a coil part, and a liquid inlet pipe. The sealing part can be either a sealant with an integral filling structure or a component consisting of a first sealing ring and a second sealing ring for sealing. After sealing, it can prevent cooling water or external immersion water from seeping into the gaps between the wiring part and the liquid inlet pipe, as well as the gaps between the wiring part and the coil part, thus preventing water from entering and damaging the coil part and wiring part, thereby extending the service life of the valve body and reducing the failure rate.

The utility model belongs to the technical field of glassware dull polish, and particularly relates to glassware dull polish equipment which comprises a sand blasting machine and two fans, and further comprises a working table, a fixing plate is fixedly installed at the top of the working table, the sand blasting machine is fixedly installed in the fixing plate, a protective shell is installed at the top of the working table in an inserted mode, and a rotating door is rotatably installed in the protective shell. A fixing plate is fixedly installed on the base, a connecting plate is fixedly installed on one side of the fixing plate, an air inlet pipe is fixedly installed on one side of the connecting plate, and the two fans are fixedly installed on the two sides of the air inlet pipe respectively. According to the device, water stains and mildewing caused by the fact that water remains on the glass cups are avoided, the glass cups can rotate automatically, and therefore the sand blasting machine can conduct even sand blasting treatment on the glass cups, the sand blasting quality is improved, meanwhile, water on the glass cups can be evenly air-dried, and the air drying efficiency is improved.

The invention discloses a marine ammonia fuel low-speed machine cabin safety protection system and an ammonia gas leakage grading response method. The system comprises a non-closed local protection cover surrounding a main engine cylinder cover area, and an air supply gap is formed between the non-closed local protection cover and a main engine body; the directional ventilation and purification subsystem is provided with an ammonia gas leakage monitoring sensor, a negative pressure suction unit and an ammonia gas spraying treatment unit which are positioned at the top of the protective cover, and can be automatically started when leakage is monitored, so that directional pumping, discharging, washing and purifying of ammonia gas are realized; and a nozzle of the independent host emergency spraying subsystem is mounted on the protective cover frame, is manually controlled by a person and is used for providing emergency spraying protection when the person is not evacuated. By means of a grading response mechanism combining automatic ventilation purification and manual emergency spraying, rapid control over ammonia gas leakage and personnel safety protection are achieved, and the system has the advantages of being rapid in response, efficient in control and emission, safe and reliable.