9results about How to "Guaranteed maintenance" patented technology

The utility model belongs to evaporative cooling condenser technical field discloses a kind of anti-cavitation settling device for evaporative cooling condenser, including water tank, water tank bottom is connected by flange and is settled in the water inlet of pool, and filter screen is arranged at the water inlet of pool, and the bottom of pool is equipped with blowdown, and blowdown ball valve is arranged at blowdown, and water outlet pipe is arranged in one side in the middle lower part of pool, and water outlet pipe is connected the water inlet of water pump by pump front pipeline, and the water outlet pipe of other end of water pump is connected with pump rear pipeline, and pump rear pipeline terminal is set in the top of cooler, and pool and water pump are set on the base of water tank bottom;The utility model solves the problem of equipment ultra-wide and ultra-limit, ensures the treatment effect of evaporative cooling condenser, the pool can store a small amount of water to improve the liquid level height before pump, reduce steel structure, also make the static pressure of pipeline before pump sufficient, meet the selection requirement of conventional water pump.

The utility model provides a multifunctional electromagnetic heating device which comprises a device body, an electromagnetic heating main circuit board and an output capacitor used for filtering are arranged in the device body, and the output end of the electromagnetic heating main circuit board is connected with an induction coil used for being wound on a coupling. The output capacitor is connected between the electromagnetic heating main circuit board and the induction coil, a control circuit board and a temperature control displayer are arranged on the side face of the device body, the input end of the control circuit board is connected with temperature sensors fixed to a coupling and a traction motor driving shaft, and the output end of the control circuit board is connected with the temperature control displayer. A cooling fan is arranged on the outer wall, close to one side of the output capacitor, of the device body. The device is simple in structure and reasonable in design, has the functions of temperature self-control, overload protection, current limitation and the like, can ensure the safety during use, and greatly improves the disassembly efficiency of the coupling.

The invention discloses an intelligent low-temperature-resistant collision buffering device suitable for an LNG (liquefied natural gas) floating transmission system, and relates to the technical field of safety protection of the LNG floating transmission system.The intelligent low-temperature-resistant collision buffering device comprises a composite buffering device, a shell and a bottom plate; an outer rigid supporting layer, a middle energy absorption layer and an inner flexible contact layer are sequentially arranged from outside to inside, the outer rigid supporting layer, the middle energy absorption layer and the inner flexible contact layer are fixedly connected into a whole in a gluing or integral forming mode, and the outer side of the composite buffering device and the outer side of the internal mechanism are wrapped with the shell. The protective shell is fixedly connected with the bottom plate to form a protective shell; through deep integration of material innovation, structure optimization and intelligent control, the technical problems of low-temperature failure, low energy absorption efficiency, poor posture adaptation, no intelligent regulation and control and the like of a traditional buffer device in an LNG floating transmission scene are comprehensively solved, and the reliability, the adaptability and the intelligent level of collision protection are remarkably improved.

This utility model discloses a heating, ventilation, and air conditioning (HVAC) device that facilitates external inspection, relating to the field of HVAC technology. It includes a support plate located at the rear of the HVAC device. The support plate has two upper and lower housings arranged vertically on its top, with a connecting pipe positioned between them. The upper and lower housings contain a detection component for airtightness testing of the connection between the HVAC device and the connecting pipe. The outer walls of the upper and lower housings are equipped with sealing components to ensure stable testing. The detection component includes two vertically arranged annular fixing frames. This utility model achieves sound insulation through glass wool and damping plates, and then allows an ultrasonic detector to perform airtightness testing at the connection between the HVAC device and the connecting pipe through the annular fixing frames. The controller then activates an alarm, facilitating early detection of leaks, timely repair, and extending the lifespan of the HVAC device while reducing operating costs.

This utility model provides a cash register device with a concealed cable routing structure, including a main frame, a display device, a receipt printing device, a camera, a motherboard module, a base, and an electronic scale. The main frame includes an aluminum alloy support frame with a cable routing channel, an openable door on the rear side, and a base at the bottom connected to the electronic scale. One side of the door is rotatably connected to the main frame. The base plate of the electronic scale has a single-point lead seal structure. This utility model's cash register device features a cable routing channel inside the main frame, which can organize, bundle, and conceal the connecting cables inside the device. This not only prevents cables from interfering with the use of the cash register but also greatly improves its aesthetics. The openable door facilitates cable connection, cable management, and maintenance of the internal components of the main frame. The single-point lead seal structure is simple and meets compliance requirements.

The utility model discloses an automobile handle shell stamping die, which relates to the field of automobile part processing, and comprises a base and a mounting cover, the upper end of the base is internally provided with a sliding groove, one side of the bottom of the base is rotatably provided with a rotating rod, and one end of the rotating rod is fixedly provided with a second rotating plate; a first threaded rod is fixedly mounted at the other end of the rotating rod, a lower mold is in threaded connection with the outer ring of the first threaded rod, the lower mold is slidably mounted in the sliding groove, the mounting cover is arranged at the upper end of the base, and second inner threaded grooves are formed in the two sides of the interior of the mounting cover correspondingly; a second threaded rod is in threaded connection with the interior of the second inner threaded groove, and a first rotating plate is fixedly mounted at one end of the second threaded rod. Due to the adoption of the structure, the accuracy of a stamping position is ensured, and the effect of detaching the lower die can be effectively realized, so that the replacement and maintenance of the lower die are ensured.

This invention discloses a gas pipeline pressure monitoring and analysis system and method, relating to the field of gas pipeline technology. It can monitor pipeline operation data in real time and evaluate pipeline operation through operational influencing factor analysis. This helps ensure the safe operation and maintenance of gas pipeline systems, thereby improving the stability and safety of gas supply. Simultaneously, it can identify operational anomalies and mark data collection points requiring maintenance. Through analysis of operational anomaly data and maintenance pattern sequence analysis, it provides maintenance suggestions. The early warning function can promptly alert to operational anomalies, improving pipeline safety and reliability, reducing maintenance costs and risks. By analyzing the maintenance patterns and sequences of data collection points based on operational anomaly data, it can prioritize the handling of collection points with more operational anomalies, improving maintenance efficiency, avoiding more serious problems due to maintenance delays, reducing unnecessary maintenance work, and lowering maintenance costs.

This invention discloses a method for calculating cosine effect loss and optimizing output thermal power in solar energy conversion. First, geographical and temporal parameters are obtained to establish a geometric model of the heliostat field. Based on the solar altitude angle, a cosine loss algorithm model is constructed, deriving a formula for calculating cosine efficiency with local latitude, solar declination angle, and solar hour angle as variables, thus achieving dynamic and accurate calculation of cosine loss. On this basis, an objective function is established to maximize the annual average output thermal power per unit mirror area. Considering constraints such as the heliostat's operating status, absorber tower location, installation height and dimensions, center distance, annular radius, and staggered layout, the optimal mirror field layout parameters and operating strategy are solved through year-round time-domain simulation. This invention accurately quantifies cosine loss through analytical algorithms and combines multi-constraint optimization to improve the annual output thermal power of the heliostat field, reduce shading and cosine loss, and provide support for the efficient operation of tower-type solar thermal power generation systems.

The invention provides a sampling device for tumor hepatobiliary surgery, and relates to the field of medical instruments, the sampling device comprises a control mechanism, the control mechanism comprises a calibration bushing plate, one end of the calibration bushing plate is provided with a controller, the outer surface of the periphery of the calibration bushing plate is provided with an adjusting seat, the adjusting seat is provided with an adjusting frame and an adjusting cylinder, and the adjusting frame is connected with the adjusting cylinder. A butt joint frame is arranged at one end of the adjusting frame and one end of the adjusting cylinder, and a hydraulic cylinder is arranged on the calibration bushing. According to the device, after the controller is controlled, the driver is driven, the connector drives the lifting frame and the connecting frame to conduct descending adjustment so as to expand outwards to enable the silica gel clamping hand to be unfolded, and then a worker presses a pressing plate to enable a hydraulic cylinder to descend; after reaching the position needing to be clamped, a worker only needs to control the controller to sample the liver and gall needing to be sampled.