7 results about "Water gap" patented technology

The utility model is applied to the technical field of thermal management integrated units, and particularly discloses a six-station integrated part temperature durability test board, which comprises a test board frame module, an environment box module, a constant-temperature medium module, a medium circulation module and an automatic measurement and control module. According to the six-station integrated piece temperature endurance test bench, the six-station tested piece is arranged, the eleven water gaps are arranged on the surface of the six-station tested piece, three test loops can be formed on the surface of the six-station tested piece by utilizing the connection among the eleven water gaps and the mutual connection among the water gaps, the water outlet and the water return port of the unit, and a sample is filled by utilizing a medium R134a, so that the test efficiency is improved, and the test cost is reduced. And a mixed solution of 50% ethylene glycol and 50% water in a volume ratio is used as a test medium, and different temperature and humidity conditions are set, so that durability tests in different directions can be carried out on the thermal management integrated part in a high-temperature aging test mode, a damp-heat durability mode and a temperature cycle durability mode.

The invention relates to the field of small-caliber core drilling, in particular to a composite sheet drill bit for sandstone type uranium mine rope coring. The drill bit comprises a drill bit body, the drill bit body is arranged at the foremost end of a drilling pipe, the drill bit body is of an annular structure, a plurality of fan-shaped tire bodies are arranged at the top end of the drill bit body, a water gap is formed between every two adjacent tire bodies, composite sheets are further arranged on the drill bit body, the composite sheets are arranged between every two adjacent tire bodies, and every two adjacent composite sheets are symmetrically arranged in a staggered mode. The compact drill bit has the advantages that the compact drill bit is simple in structure, the service life of the compact drill bit can be effectively prolonged, and the rock core recovery rate of a sandstone stratum is increased. The inner and outer gauge protection strips can effectively reduce drill bit abrasion and reduce wire line coring drill lifting times. The drill bit is further characterized in that the rotation stability of the drill bit at the hole bottom is effectively improved through the design of the eight-wing composite sheet, jumping of a drilling tool is avoided, and the adaptability of the drill bit to different stratums is improved. In addition, the multi-water-gap design of the drill bit can prevent a cutting tool mud drum from being passivated, the problems of pump suffocation, difficulty in inner pipe salvage and the like in the drilling process are reduced, and therefore the drilling speed is increased.

The application provides a water gap detection device, relates to the field of detection devices, and relates to a water gap detection device which comprises a machine table, a support, a driving cylinder, a first mounting plate, a second mounting plate, a detection assembly and a base. The detection assembly comprises a plurality of detection heads which are mounted to the lower end of the second mounting plate. When the detection device is in use, the object to be detected is placed in the limiting cavity of the base, and then the driving cylinder drives the first mounting plate, the second mounting plate and the detection assembly to run downwards. When the detection head is inserted into the water gap of the object to be detected, it proves to be qualified. While being detected, the detection head can also dredge the water gap which is slightly blocked. The utility model can quickly detect a plurality of water gaps, has high detection efficiency, and has the advantages of simple structure and low manufacturing cost.

The utility model relates to the technical field of water gap production, in particular to a water gap anti-scouring performance testing device, which comprises a water gap anti-scouring testing mechanism and a water gap anti-scouring testing mechanism, the internal and external local washing mechanism is fixed at the upper part in the protective shell and can change the washing form according to requirements; the lifting mechanism is fixed to the bottom in the protective shell and can drive the water gap to ascend and descend. According to the utility model, through the driving of the first electric push rod, not only can the internal structure of the pipe be changed to wash the inner wall of the water gap, but also other structures of the pipe can be changed, so that the outer wall of the water gap can be washed in a surrounding manner while the water gap is internally washed; the abrasion difference of the outer wall of the nozzle at different force bearing points can be detected through all-directional scouring, great significance is achieved for judging the deformation and cracking tendency of the whole structure of the nozzle after long-term erosion, it is guaranteed that materials of the nozzle are durable in the complex external environment, the structure of the nozzle can be kept stable, and production continuity is guaranteed.

The utility model discloses a square billet tundish, and belongs to the field of molten steel casting. According to the technical scheme, the square billet tundish comprises a tundish body, a water feeding opening is formed in the bottom face of the tundish body, a sliding rail is arranged on the bottom face of the tundish body, the sliding rail passes through the position of the water feeding opening, a plumb bob assembly is installed in the sliding rail and comprises a hanging cable, and a heavy block is arranged at the lower end of the hanging cable. According to the tundish, the plumb bob assembly is arranged at the water gap position, when the water gap is positioned, the plumb bob assembly is moved to the position below the upper water gap, the hanging cable and the heavy block are placed into the lower water gap, water gap centering is judged according to the positions of the heavy block and the hanging cable in the lower water gap, operation is more convenient and visual, the centering effect is good, and safety is higher.

The invention belongs to the technical field of geological drilling, and particularly relates to a sharp-tooth stepped three-wing gauge protection compact comprehensive drill bit. According to the drill bit provided by the invention, the plurality of cutting teeth which are connected to the crown parts of the wing blocks at the top end of the matrix and are linearly arranged form a step shape with a high middle part and two low ends, so that more free surfaces can be formed on a rock stratum during drilling, the stratum damage efficiency is improved, and the effect of improving the drilling speed is achieved; the wing blocks and the matrix naturally form a water gap, the water gap is large in water cross section and irregular in shape, disturbance of water flow at the bottom end can be increased, the problem that a water hole is prone to being blocked can be effectively solved especially when a soft plastic stratum is drilled, the unfavorable conditions of drill pasting, poor cooling of a diamond compact and the like are reduced, and then the rock powder discharging capacity and the drill bit cooling capacity are improved. In addition, the inner connecting threads are arranged on the inner side of the bottom end of the tire body, can be in threaded connection with the outer threads of the drilling tool drill rod in a matched mode and can be matched with threads of different regulations, and the applicability of the drill bit is improved.

The invention discloses a self-calibration large ladle nozzle visual opening degree detection system and method, and the system comprises an image collection unit which is used for collecting an image of a large ladle long nozzle position; the image processing unit is used for acquiring the image information sent by the image acquisition unit in real time, automatically performing target identification on the image of the large-ladle long nozzle, and detecting and recording the current position coordinates of the large-ladle long nozzle in real time; the automatic calibration unit is used for acquiring and recording a pressure signal of the large-ladle long nozzle, screening and determining a zero coordinate of the large-ladle long nozzle, and determining an opening range of the large-ladle long nozzle; and the calculation output unit is used for calculating and obtaining the opening value of the large ladle long nozzle according to the position coordinate, the zero coordinate and the opening range of the large ladle long nozzle. The detection precision and reliability of the continuous casting bale nozzle visual opening degree detection system are improved, and the problem that the precision fluctuation is large in an existing visual detection technology is solved.