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61results about How to "Ensure completeness" patented technology

Marking press for corrugated paper

The invention provides a marking press for corrugated paper. The marking press comprises a longitudinal marking device, a prepressing wetting device, a front conveying device and a rear conveying device, wherein the longitudinal marking device comprises two upright columns arranged symmetrically, a cross rod, air cylinders, a pressing roll, pressing wheels and a supporting roll; the cross rod is arranged at the top ends of the two upright columns; the air cylinders are arranged on the cross rod; output rods of the air cylinders are connected with shaft sleeves; the pressing roll is rotationally mounted in the shaft sleeves; axial positions of the pressing wheels on the pressing roll are adjustable; the prepressing wetting device comprises two connecting rods arranged symmetrically, a rotating roll, prepressing wheels, spongy layers and first water spray pipes; the prepressing wheels are arranged on the rotating roll, and correspond to the pressing wheels one to one; axial positions of the prepressing wheels on the rotating roll are adjustable; the widths of prepressing wheels are greater than those of the pressing wheels; the spongy layers are arranged on the outer sides of rolling surfaces of the prepressing wheels; and water outlets of the first spray water pipes are formed above the rotating roll. The marking press is wide in application scope; pressing marks have various forms; the depths of the pressing marks are controllable; and no tearing can be caused at a pressing mark place in a marking process.
Owner:BENGBU ZHENHUA PACKING MACHINERY

Automatic concrete curing device

The invention discloses an automatic concrete curing device. The automatic concrete curing device comprises a suction cup, a working disc, a water inlet pipe and a plurality of water outlet pipes. The first side of the suction cup can be attracted to a concrete structure to be cured, and a cavity is defined in the working disc; a cover capable of being opened/closed is arranged on the top of the working disc, and a first temperature sensor for sensing is arranged in the cavity; a humidity sensor is arranged on the outer portion of the working disc; the first end of the water inlet pipe is communicated with a water source, the second end of the water inlet pipe extends into the cavity, and a second temperature sensor, a heater and an electromagnetic valve are arranged on the water inlet pipe sequentially; and the first ends of the multiple water outlet pipes are all communicated with the second end of the water inlet pipe, the second ends of the multiple water outlet pipes extend out of the cavity, and spray nozzles are arranged at the second ends of the multiple water outlet pipes. In terms of curing of newly-cured concrete, according to the temperature and the humidity, the water temperature and the water spraying curing strength can be automatically adjusted, and full-process full-coverage automatic curing can be achieved.
Owner:中铁隧道局集团建设有限公司

Automatic cleaning device for surface air cooler at tail end of central air conditioner

InactiveCN104215120AEffective cleaning and maintenanceEnsure cleanlinessFlush cleaningEngineeringMechanical engineering
The invention relates to an automatic cleaning device for a surface air cooler at the tail end of a central air conditioner and belongs to the technical field of cleaning of surface air coolers. The automatic cleaning device for the surface air cooler at the tail end of the central air conditioner comprises fins which are arranged at intervals and cold water pipes which penetrate through the fins, are perpendicular to the fins and are arranged at intervals, wherein a water inlet is formed in one end of each cold water pipe, a water outlet is formed in the other end of each cold water pipe, cleaning branch pipes which are arranged at intervals penetrate through the fins, one end of each cleaning branch pipe is connected with a cleaning header pipe, a plug is arranged at the other end of each cleaning branch pipe, and a water orifice is formed in the portion, between every two adjacent fins, of each cleaning branch pipe. According to the automatic cleaning device for the surface air cooler at the tail end of the central air conditioner, the fins can be cleaned and maintained effectively, and the cleanness and the smoothness of the fins are guaranteed. When the automatic cleaning device is used, a maintainer just needs to open a valve at regular times to wash the fins if possible, then the cleanness and smoothness of the fins can be kept for a long time, the situation that a special cleaning company is required for cleaning is avoided, and thus cleaning cost is reduced; when a large amount of dust is accumulated on the surfaces of the fins due to the absence of regular maintenance, chemicals can be injected into the cleaning header pipe for cleaning, and thus the fins can be thoroughly cleaned.
Owner:CHONGQING RUNLAN WATER TREATMENT ENG TECH

Description method of space electric field of multi-conductor transmission line system

The invention discloses a description method of a space electric field of a multi-conductor transmission line system, and aims to accurately and completely describe the space electric field of the multi-conductor transmission line system in detail, and provide a basic method for carrying out electrical parameter calculation and performance index analysis of the multi-conductor transmission line system. The description method comprises the following steps: classifying conductors in the complex multi-conductor transmission line system according to transmission and backflowing functions, and then constructing loops two by two by the different conductors participating in transmission and backflowing, and using the loops, which uniquely correspond to charge in a physical sense, as basic space electric field units; for each loop, deriving and calculating spatial potential differences of all the loops and spatial mutual potential differences between the different loops according to parameters of a radius, a spatial relative distance and the like of the conductors of the loop, and synthesizing the spatial self-potential differences and mutual potential differences to complete electric field description for the single basic space electric field unit; carrying out electric field description on the other basic space electric field units according to the above steps; and synthesizing electric field description equations of all the basic space electric field units, and listing and writing a space electric field description matrix to complete description of the space electric field of the multi-conductor transmission line system.
Owner:CHINA RAILWAY ERYUAN ENG GRP CO LTD
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