3results about How to "Continuous injection" patented technology

This invention belongs to the technical field of oil drilling equipment, specifically a particle injection device for oil drilling, including a particle tank, which is a parallel double tank that can be used alternately; an outlet pipe is installed at the lower end of the particle tank, and an regulating pipe and an injection pipe are sequentially installed on the outlet pipe. A nozzle pipe and a mixing pipe are respectively installed at both ends of the injection pipe, and the mixing pipe is connected to the main manifold; a spiral plate is installed inside the mixing pipe; a control hose is installed inside the regulating pipe, and a control pipe is installed on the regulating pipe, connecting the control hose and the inner wall of the regulating pipe, and the control pipe is connected to an external hydraulic pump; this invention has a simple structure, can impact and agitate the particles in the tank to prevent particles from clogging the outlet, and at the same time, agitate the particles to make the particles and drilling fluid evenly mixed, while continuously controlling and adjusting the particle injection volume to change the concentration of injected particles.

This application relates to a sample introduction module and a single-molecule immunoassay analyzer including the same. The sample introduction module comprises 2 to 4 sample racks, each arranged parallel to each other in the vertical direction and having the same structure. Each sample rack includes a microplate, a stage, and a linear reciprocating motion mechanism. The linear reciprocating motion mechanism includes a linear guide rail, a drive mechanism, a drawer slide rail, a synchronous belt, a drive wheel, a driven wheel, and a zero-position sensor. The single-molecule immunoassay analyzer includes a sample introduction module, a detection module, an incubation module, and a reagent processing module. The sample introduction module of this application can effectively reduce the size of the module while ensuring sample storage capacity. The single-molecule immunoassay analyzer of this application has a high degree of automation, a compact structure, low operation difficulty, and improved detection efficiency, reaching over 90 tests / hour.

The utility model relates to the technical field of trunk injection machines, in particular to a drill bit for a trunk injection machine, the drill bit is provided with a drill bit assembly, the drill bit assembly comprises a drill bit, a self-tapping thread section and a drill bit mounting rod, a liquid outlet is formed in the joint of the drill bit and the self-tapping thread section, and arc-shaped protrusions are symmetrically arranged on the two sides of the liquid outlet in the rotating direction of the drill bit; and wood chips generated by drilling are guided away to the two sides of the liquid outlet. By arranging the arc-shaped protrusions, wood chips are guided to the two sides, smoothness of a liquid outlet is guaranteed, liquid medicine can be continuously and stably injected into a tree trunk, the blocking situation is greatly reduced, the medicine injection operation can be continuously carried out, the maintenance cost of equipment is reduced, and the overall working efficiency is improved. And by arranging the locking protrusion and the locking clamping groove, circumferential rotation of the drill bit assembly relative to the rotating mandrel is limited, the drill bit assembly is not prone to rotating, and stability and accuracy of drilling are guaranteed.