9 results about "Black smoke" patented technology

A method for preventing overspeeding and black smoke emission from a four-stroke marine engine under all operating conditions is disclosed, relating to the field of four-stroke marine engine control technology. This method addresses the problem of existing technologies failing to achieve full-condition fuel quantity limitation and exhibiting low control precision, leading to black smoke emission from the engine. The method involves collecting a 4-20mA current signal corresponding to the boost air pressure as the main engine load feedback signal; connecting this signal to the electronic speed controller via a shielded anti-interference link; setting fuel quantity limitation parameters according to eight speed ranges and at least eight load points in each range within a speed range of 200-1080 r / min and a boost air pressure range of 10-200 kPa, and periodically calibrating these parameters; dynamically adjusting the fuel supply using a PID control algorithm to predictively prevent speed deviations; and incorporating an abnormal alarm and a local + cloud encrypted storage module. The beneficial effects are: ensuring the engine speed remains stable within a safe range and avoiding black smoke emission caused by excessive fuel quantity under different operating conditions.

The utility model discloses a kind of gasification firewood stove, the gasification firewood stove includes stove body with stove door, chimney, ash receiving box, fire ring and grate;Stove body is provided with hearth and ash hole inside;Chimney is arranged on the side wall of stove body and is communicated with hearth;Ash receiving box is inserted in ash hole and is located below grate;Fire ring includes inner fire ring and outer fire ring;Inner fire ring and outer fire ring are spaced apart and side edge sealing connection are set;Inner fire ring is set above grate, and a plurality of air holes are set on the upper portion side wall of inner fire ring;The interval space of inner fire ring and outer fire ring is communicated with ash hole;The utility model gasification firewood stove is set air hole on the upper surface of inner fire ring, high-temperature flue gas enters between inner fire ring and outer fire ring from air hole, and secondary combustion is carried out with oxygen inside, realize the full combustion of fuel and reduce the emission of black smoke, improve thermal efficiency and reduce flue gas emission, to achieve the effect of energy saving and emission reduction.

This invention discloses an automatic identification method and system for vessels emitting black smoke, aiming to solve the problem of rapid and accurate identification of such vessels. The method includes: recording initial parameters of a zoomable camera and acquiring channel video; capturing black smoke events using a multi-feature fusion black smoke detection algorithm; adjusting the camera via PID control and recording the vessel's 30-second navigation trajectory and heading; and filtering and matching identity information based on an "AIS + hull coding" dual-modal system, combined with vessel quantity and heading, supplemented by trajectory similarity and size error constraints to improve accuracy. The system includes modules such as a zoomable camera, an AI computing power unit, and a controller, integrating black smoke detection, trajectory tracking, identity matching, and data uploading. This invention achieves automatic identification of vessels emitting black smoke with strong real-time performance and high accuracy, enabling rapid evidence collection and providing technical support for channel vessel supervision.

This application relates to a smoke suppression and cooling device, specifically in the field of power generation equipment for civil defense fortifications. It includes a support frame and at least two air ducts mounted on the frame. Each air duct is connected to the exhaust pipe of a diesel generator. Each air duct contains a particulate trap, with mounting rings fitted at both ends. Each air duct contains two retaining rings, each connected to the air duct by a support spring. The support spring pushes the two retaining rings closer together, allowing the particulate trap to be inserted between the two retaining rings. The mounting rings are inserted into and abut against the retaining rings. This application effectively removes black smoke from exhaust gases, improving the concealment of civil defense fortifications during wartime.

This utility model provides a device for controlling black smoke during marine diesel engine testing. Its features include: a housing comprising a lower silencing chamber and an upper filter chamber, which are connected; an air inlet is located on one side of the silencing chamber; multiple metal filter elements are distributed within the filter chamber, with the axial direction of the filter elements being vertical; air enters from the sides of the metal filter elements and exits from the top; an air outlet is located at the top of the filter chamber; and a pulse jet system is located above the housing and connected to the filter chamber. This utility model's device for controlling black smoke during marine diesel engine testing overcomes the problems of existing devices, such as complex structure, difficulty in cleaning filter materials, high noise levels, and difficult maintenance.

The application discloses a mute diesel generating set with tail gas treatment, and relates to the field of generators, which comprises a control system assembly, a chassis assembly, a hanging bracket assembly, a box body assembly, an exhaust system assembly and an internal engine generator water tank assembly, a tail gas treatment mechanism is connected in series in the exhaust system assembly, a dustproof mechanism is arranged on the tail gas treatment mechanism, and the tail gas treatment mechanism comprises a straight pipe part arranged in the exhaust system assembly. The black smoke purifier DPF is mainly used for capturing particles in tail gas to meet the requirement of the number of particles (PN) of emission, the black smoke purifier DPF control system is connected to the electrical control system of the unit, is used for realizing the starting synchronization function, and is matched with the exhaust system assembly for use, so that harmful substances in exhaust smoke can be treated, harmful substances in exhaust smoke can be treated, and the pollution to human body and the environment is reduced.

An adaptive wide-range adjustable low-emission internal combustion venting and ignition device and control strategy are disclosed, comprising an incineration tower, a main burner, an ignition / detector, a main gas flow path, an ignition gas flow path, an emergency venting flow path, an air barrier, an electric damper, a maintenance manhole, a movable base, an emission monitoring system, and an intelligent control system. The internal combustion venting and ignition device adopts a closed design, producing no open flame or black smoke during combustion; the separate design of the tower and base facilitates relocation and allows for shared use across different work locations; the main burner employs a double-layer low-NOx combustion design, which can adaptively adjust across a wide range according to the venting air volume; the burner nozzle is equipped with a low-NOx ejector nozzle, which promotes mixed combustion and achieves low-NOx and low-carbon emissions. This invention is suitable for the diverse needs of industries such as oil drilling, natural gas extraction, and chemical processing, and can completely solve the problems of existing surface flare technology, such as low processing capacity, difficulty in adapting to different working conditions, easy flame leakage from the tower, low combustion efficiency, environmental pollution, and disturbance to residents.

The application discloses an ascending pipe heat exchanger and a use method thereof, which comprises an outer cylinder, a heat-conducting material body, a coil pipe and an inner cylinder; the outer cylinder is concentrically arranged outside the inner cylinder, a heat-conducting space is arranged between the outer wall of the outer cylinder and the inner wall of the inner cylinder; the coil pipe is arranged in the heat-conducting space, and the heat-conducting material body is filled in the heat-conducting space; wherein the heat-conducting material body is a homogeneous mixture of metal heat-conducting powder and phase change material; the high heat-conducting performance of the metal heat-conducting material is utilized, the gas production of the heat exchanger is effectively improved, the temperature of the raw coal gas is greatly reduced, and the phenomenon of graphite deposition is effectively prevented; meanwhile, the phase change characteristics of the phase change material are utilized, the temperature of the inner wall of the inner cylinder is ensured to be kept in a preset phase change temperature range in the whole coke oven production cycle, and the phenomenon of coke oil deposition at the end of coking is avoided; meanwhile, the phenomenon of black smoke emission when the water seal cover is opened before coke pushing can be avoided.

This invention relates to the field of data processing technology, and in particular to a target detection method and system for identifying ships emitting black smoke. The method includes the following steps: acquiring real-time video streams to obtain continuous navigation images; extracting the ship's centroid coordinates and the black smoke region; and acquiring the wind speed and direction from a weather station; determining the local wind field distortion factor based on the degree of wind speed deviation from the mean, the ship's distance from the shoreline, and the angle between the wind direction and the waterway; calculating the vertical compensation height of the smoke by combining the ship's motion state and the smoke concentration; calculating the contribution score of each ship to the black smoke region based on the three-dimensional spatial distance from the pixel to the chimney, the black smoke's grayscale opacity, and the local wind field distortion factor; and finally determining the main source of the smoke emission by the contribution confidence score over continuous time intervals. This invention achieves three-dimensional modeling of plume diffusion, effectively avoiding the influence of local wind field disturbances on the judgment results, and significantly improving the accuracy of identifying ships emitting black smoke in complex waterway environments.