4results about How to "Eliminate environmental problems" patented technology

The invention discloses an incident angle measurement method and system based on reflection light spot image analysis, and belongs to the technical field of optical measurement. The method comprises the following steps: enabling a laser beam to enter the front surface of a to-be-detected glass window at a preset reference incidence angle; collecting a light spot grayscale image of the reflected light beam, and obtaining an original grayscale image; determining a light spot connected domain according to the corrected image, and intercepting a local processing window by taking the center of the light spot connected domain as the center; obtaining an effective signal image after background removal according to the background estimation area at the periphery of the local processing window; constructing an exclusion mask, and determining an effective pixel set; on the effective pixel set, calculating the center coordinate of the light spot; and according to the displacement component, calculating a deviation value of a reference incident angle by combining geometric parameters of a measurement system, and obtaining an actual incident angle. According to the invention, excessive optical elements are not needed, sub-pixel-level center positioning is realized through cooperation of the image sensor and a high-robustness image processing algorithm, and the method has the advantages of high precision, strong anti-interference capability and simple structure.

The utility model discloses a kind of triethylene glycol reboiler pipeline condensate automatic collection devices, including triethylene glycol intake pipeline, vent pipeline, drainage pipeline and condensate drainage pipeline, wherein triethylene glycol intake pipeline includes triethylene glycol reboiler, frequency conversion fan, heat exchanger and gas-liquid separator;Above-mentioned vent pipeline and drainage pipeline are respectively connected to above-mentioned gas-liquid separator, wherein drainage pipeline includes filter, sewage pump and sewage tank;The condensate drainage pipeline is connected between triethylene glycol reboiler export end and sewage pump, including water collection section and automatic drainage device, automatic drainage device includes pipeline intercommunication ball valve, stop valve, automatic drain valve and check valve.The utility model structure is simple, realize the automatic collection of condensate in triethylene glycol system reboiler to Roots blower pipeline, avoid liquid water to flow into Roots blower, reduce Roots blower failure rate, and then improve tail gas recovery device operating efficiency and reliability.

This invention discloses an automatic control system for the brightness value of polished rice, including a rice polishing machine, a control cabinet, a quality analyzer, and a sampling mechanism. The rice polishing machine has a raw material inlet at the top and a discharge outlet at the bottom. The discharge outlet is connected to the inlet of an elevator via a chute. The discharge outlet of the elevator is connected to the sampling mechanism. The sampling mechanism is normally open and connected to the chute of the next process step. When sampling, the sampling mechanism is connected to the inlet of the quality analyzer. This invention, under a constant background light source, visually inspects evenly arranged rice to accurately measure the broken rice rate and brightness value of the sampled rice. It eliminates unstable human and environmental factors, facilitating accurate feedback data for calculation and control.

This invention provides a biodegradable modified coating, a modified knot plugging agent for fracturing, and their preparation method, belonging to the field of tertiary oil recovery technology. Specifically, the dense cross-linked network structure generated by the Schiff base reaction between gelatin (GL) and glutaraldehyde (GD) serves as a coating material for the knot plugging agent, providing it with high strength and stability without sacrificing its biodegradability. Furthermore, by changing the reaction conditions (immersion time and curing time) during the preparation of the coated knot plugging agent, a series of knot plugging agents adaptable to different reservoir temperatures and degradation cycles can be obtained to meet the complex conditions in perforation cluster plugging processes, thus broadening its application range.