5results about How to "Empty completely" patented technology

The invention relates to the technical field of cleaning equipment, in particular to an underwater cavitation jet experiment table with a modular base, which comprises a water tank support frame, a transparent water tank is arranged in the water tank support frame, and a sliding table is arranged at the top of the water tank support frame in the vertical direction; the injection control device is mounted on the sliding table to move in the vertical direction, and comprises a shutter assembly and a nozzle assembly; the test piece impact table assembly is used for fixing a test piece, the test piece impact table assembly is located in the transparent water tank and installed in a bottom-sitting mode, and the test piece impact table assembly comprises a modular base, an impact table and a test piece limiting plate located above the impact table. The sliding table is used for driving the injection control device to move, so that experiment requirements of different target distances are met; the shutter piece can be released or closed through automatic program control, the test time of different test pieces is accurately controlled, and the test effect is guaranteed.

The utility model discloses a mobile phase waste liquid collecting device for a liquid chromatograph, and relates to the technical field of the liquid chromatograph, the upper part of a waste liquid inlet of a collecting barrel is provided with a liquid inlet pipe, the outer side of the liquid inlet pipe is sleeved with a waste liquid main pipe, the waste liquid main pipe is provided with a plurality of liquid inlet holes along the vertical direction, and the plurality of liquid inlet holes are respectively communicated with a waste liquid branch pipe; an air outlet is formed in the top of the waste liquid main pipe, and a liquid outlet is formed in one side of the collecting barrel. Mobile phase waste liquid of a plurality of liquid chromatographs flows into the waste liquid main pipe through the corresponding waste liquid branch pipes and enters the collecting barrel after being collected by the waste liquid main pipe, so that unified collection of the mobile phase waste liquid of the plurality of liquid chromatographs is realized, the space is greatly saved, subsequent unified treatment is facilitated, the air outlet can balance air pressure inside and outside the collecting barrel, and the working efficiency is improved. Waste liquid can enter the collecting barrel more smoothly and is finally discharged through the liquid outlet.

This utility model relates to a leak-proof and freeze-proof structure for furnace top water supply, including a leak-proof and freeze-proof pipe. The leak-proof and freeze-proof pipe includes a connecting section and a drain section. Two connecting sections are directly connected and respectively disposed at both ends of the drain section. There is a pipe diameter between the two connecting sections that allows for straight-line connection, ensuring that the water flow has low resistance during use and can converge to the lowest point during draining. The two ends of the connecting section are respectively connected to the main water supply pipe through a first solenoid valve and a second solenoid valve. The drain section includes a first drain pipe that slopes downward from both ends toward the middle. The bottom surface of the first drain pipe is lower than the bottom surface of the connecting section. A second drain pipe is disposed at the lowest point of the drain section. The second drain pipe slopes downward and connects to the return water tank, and a third solenoid valve is disposed at its end. This application prevents leakage into the furnace and affects the furnace condition by setting up a leak-proof and freeze-proof pipe, while also preventing the water from freezing and causing the pipes and valves to crack.

This utility model discloses a top-discharge intermittent reactor, belonging to the field of reactor technology. It includes a reactor body and a top-discharge unit. The top of the reactor body is sealed and fixed with a reactor lid, and a heating jacket is provided on the outside of the reactor body. A stirring motor for driving a stirring paddle is fixed on the reactor lid. The reactor lid also has a feeding gate valve and a discharge port. A discharge pipe is connected to the inside of the discharge port, extending to the bottom of the reactor body, and a safety gap is provided between the discharge pipe and the stirring paddle. The top-discharge unit includes a filter tank supported and fixed to the top of the reactor body by a bracket, with a feeding flange installed on the top of the filter tank. A filter basket is provided inside the filter tank, fitting snugly against the inner wall of the filter tank. The bottom of the filter tank is connected to the inside of the reactor body via a return valve. This top-discharge intermittent reactor can completely discharge the reaction-generated material from the reactor body, ensuring more thorough discharge.

The utility model belongs to the technical field of hydraulic engineering, and particularly relates to a riverway rock-soil cleaning device for hydraulic engineering, which comprises a moving frame and a lifting part, the lifting part is connected onto the moving frame in a matching manner, a collecting part is fixedly connected onto the lifting part, the collecting part is connected with a cleaning part in a matching manner, and a knocking part is connected onto the lifting part in a matching manner. The knocking piece and the cleaning piece are arranged in a matched mode. According to the riverway rock and soil cleaning device for the water conservancy project, through the matched design of the collecting piece and the cleaning piece, continuous and convenient cleaning and use of riverway rock and soil can be achieved, it is avoided that the rock and soil are dug for one time and then continue to be dug for the next time, dumping is conducted after continuous digging is achieved, the using effect is improved, and the working efficiency is improved. And through the design of the knocking piece, the cleaning shovel can be vibrated and knocked, so that rock soil in the cleaning shovel can be thoroughly emptied, the digging amount of the next time is ensured, and the using effect is improved.