5results about How to "Quick join" patented technology

The utility model discloses a forest fire high pressure pump belongs to forest fire field, including the end of bearing, the outer wall fixedly connected with water storage tank of the end of bearing, is provided with the adjusting assembly in the inside of water storage tank, and the adjusting assembly includes the sliding base fixed in the bottom end of water storage tank, the inner wall sliding connection of sliding base has the adjusting board, two adjusting boards are screwed in the outer wall of two -way screw rod, and two -way screw rod is located in the inner wall rotation of water storage tank, and the end portion fixedly connected with hand wheel of two -way screw rod, through the cooperation of above each device, can pass through the intercoordination of each spare part, reduces the labor intensity of operating personnel, improves the utilization of the water body in the box, improves the effect of extinguishing, through the rotation hand wheel makes two -way screw rod rotate, and then makes two adjusting boards opposite movement, and then extrudes the water body of using to the middle part, and then through the height of water body changes to facilitate water pump fast draws, improves the single -use rate of water body, improves the effect of extinguishing.

The application discloses a method for controlling high nitrogen content in RH refined steel and belongs to the technical field of steel smelting. The application aims to solve the technical problem that the existing RH refining process cannot simultaneously consider the dehydrogenation effect and stable control of high nitrogen content. The application adopts a process flow of converter-LF refining-RH refining-continuous casting, vanadium alloying is not performed in the converter smelting and LF refining stages, the time of adding nitrogen-containing alloy is controlled after the completion of RH refining vacuum dehydrogenation, the vacuum is broken immediately after short-time circulation and mixing, and finally, continuous casting protection pouring is performed. The application realizes stable control of the nitrogen content in the steel at 150-200 ppm and hydrogen content less than 1.5 ppm by optimizing the alloy addition time and controlling the vacuum degree in sections, significantly improves the nitrogen yield, is simple in process, strong in operability and has good industrial application value.

The invention provides a data transmission method based on a local area ad hoc network and an integrated AR device, and the method comprises the steps: completing the initialization of networking, evaluating the transmission rate of each path, and dynamically selecting a main communication channel according to the real-time rate; scanning the started AR equipment in the area, bringing the started AR equipment into a unified maintenance networking channel, and performing optimal path selection to form a Mesh network; entering adaptive data transmission and network optimization according to the actual distance between the devices and the network condition, judging the distance between the devices, and if the distance exceeds a preset distance, determining an optimal path and starting a link dormancy mechanism based on a Floyd-Worschel algorithm; if the distance does not exceed the preset distance or the network is congested, automatically or randomly selecting multiple paths; security authentication and network management are completed, and collaborative maintenance operation is carried out. The equipment adopts a decentralized ad hoc network architecture, direct communication is realized among the equipment, a base station or a router is not needed, intermediate links are reduced, and delay is reduced.

The invention discloses a device for safely adding a temporary plugging material into fracturing operation and a using method of the device, and belongs to the technical field of oil and gas field fracturing operation auxiliary devices. One end of the high-pressure manifold is connected to a wellhead connecting pipe; a hollow temporary storage container is arranged at the position, close to the wellhead connecting pipe, of the high-pressure manifold; a feeding box communicated with an inner cavity of the temporary storage container and a corresponding feeding switch are mounted on the temporary storage container; a blow-off pipe and a corresponding blow-off switch are arranged on the temporary storage container; the outlet side of the rear end of the temporary storage container is connected to the high-pressure manifold through a high-pressure connector. A rear-end switch is arranged on the high-voltage connector; the inlet side of the front end of the temporary storage container is detachably connected to an output pipeline of the pump truck through a low-pressure connector and a conveying pipeline. The low-voltage connector is also provided with a front-end switch; the problems that in the prior art, when a temporary plugging material is added in fracturing operation, the temporary plugging material is prone to sedimentation in a high-pressure manifold, and a pump truck is prone to pump clamping, pump burning or liquid leakage are effectively solved.