3results about How to "Avoid dangerous accidents" patented technology

The utility model provides a kind of gas meter with intelligent adjusting function, it is related to gas meter technical field, including gas meter main part;The inside front end intermediate position of gas meter main part is fixedly installed with display controller, and the inside front lower position of gas meter main part is slidably connected with push-pull cover, and battery is placed in the inside position of push-pull cover.It is equipped with safety pipe, stretching part, closure pad and other structures when abnormal situation such as gas leakage occurs, and circuit board can control stretching part to stretch, so that the taper position of closure pad is attached to the taper groove of safety pipe, rapidly cut off gas supply, effectively avoid the occurrence of dangerous accident.Solve the problem that traditional gas meter lacks effective automatic gas supply cut-off mechanism, when gas leakage and other dangerous situations occur, gas delivery cannot be timely blocked in larger security risks.

This invention relates to a carbon dioxide fracturing system and control method, belonging to the field of oil and gas extraction technology. The carbon dioxide fracturing system of this invention includes a liquid supply module, a fracturing pump injection module, a precooling module, a venting module, and a control module. The liquid supply module stores and supplies liquid carbon dioxide. The fracturing pump injection module is connected to both the liquid supply module and the well to be fractured. The precooling module is connected to the liquid supply module to precool it. The venting module is connected to both the liquid supply module and the fracturing pump injection module. The control module is connected to the liquid supply module, fracturing pump injection module, precooling module, and venting module to monitor and control their operation. The technical solution disclosed in this invention can solve the problems of low automation in existing carbon dioxide fracturing operations, which generally rely on manual operation, resulting in high labor intensity and safety hazards.

The application discloses a steam stove, which comprises a stove body, an inner stove ring, a water tank, an outer stove ring and a fuel feeding device, the inner stove ring is fixed above the stove body through a supporting leg, and a combustion chamber is arranged in the stove body; the fuel feeding device is used for feeding fuel into the combustion chamber; the outer stove ring is arranged outside the inner stove ring and is fixedly connected with the inner stove ring; the water tank is fixed outside the outer stove ring, and a steam pipe is connected to a side wall of the water tank; a chimney is connected to the inner stove ring, the chimney is arranged through the side wall of the inner stove ring near the top, one end of the chimney extends into the inner stove ring, and the other end of the chimney extends to the outside through the outer stove ring and the water tank. The application provides a cooking tool which is convenient to use, can heat water by using the waste heat generated by combustion to generate steam, and can connect the steam to other tools for steaming dishes, cooking rice, boiling water and the like, so that cooking and steaming work can be simultaneously performed on one device, energy is fully utilized and saved, and heat is provided for a user.