41results about How to "Achieve uniform distribution" patented technology

The invention relates to technical fields of environment protection and chemical engineering, in particular to a supercritical water oxidation reactor. The supercritical water oxidation reactor comprises an inner shell and an outer shell which are coaxially arranged; the inner shell is divided into an upper cylinder and a lower cone; the cylinder comprises an upper-section hole-free pipe and a lower-section straight porous pipe; the cone is of a tapered porous wall; the outer shell comprises an upper connection flange, a middle straight pressure bearing wall and a lower tapered bearing wall; a first ring gap is formed between the cylinder portion and the straight pressure bearing wall as well as the connection flange; a second ring gap is formed between the tapered porous wall and the tapered pressure bearing wall; an isolation ring is arranged between the first ring gap and the second ring gap; a high-temperature evaporated-water injection pipe is arranged on the upper portion of the straight pressure bearing wall; a low-temperature evaporated-water injection pipe is arranged on the upper portion of the tapered pressure bearing wall, and an outlet pipe is arranged at the bottom of the tapered pressure bearing wall; a nozzle pipe penetrating the top center of the inner shell is coaxially arranged on the connection flange. By the arrangement, evaporated water can be distributed evenly, and inhibition to center reaction during operation is avoided.

The invention discloses a negative electrode paste performance improvement method. The method comprises the following steps of A, paste preparation: a, adding deionized water and CMC to a stirring bucket; b, adding conductive carbon black to the paste after the paste is stirred in the step a; c, adding negative electrode graphite, DBSA and the residual solvent; d, adding weighed SBR; e, performingscreening on the stirred paste; B, coating: a, setting stationary knife table parameters, and starting a heating switch to set a warm area temperature; b, putting negative electrode paste into a material groove; c, starting a coater and performing debugging; and d, after debugging is qualified, starting a host to perform coating as normal. By adoption of the method, a modifying agent dodecylbenzene sulfonic acid is skillfully added in the paste preparation process; and on the basis, the adding working procedures of each added component are controlled reasonably in the preparation process, andstirring parameters are limited reasonably after each component is added so as to improve negative electrode particle dispersity, thereby realizing graphite powder particle uniform distribution and improving the paste performance.

The invention discloses a surface microstructural array with self-transportation performance and a forming method thereof. A single microstructure of the surface microstructural array is a shark scaleimitating structure, the shark scale imitating structures are triangular protrusions and are made from photosensitive resin, and the size is in micron order. Nano particles are distributed on the surfaces of the microstructures, and micro/nano composite structures are formed by the nano particles and the shark scale imitating structures. Multiple composite structures are evenly distributed on thetarget face of a formed part, and the surface microstructural array is formed. According to the forming method of the microstructural array, the surface microstructural array is prepared through an electromagnetically assisted vibrating face projection micro-stereoscopic photoetching system according to certain steps. According to the surface microstructural array, automatic transportation of condensate liquid drops can be achieved, and the condensation efficiency is improved. According to the forming method, by means of high-frequency vibration of an electromagnetic assisted vibration device, nano particle aggregations can be reduced, even distribution of the nano particles is achieved, and the forming precision and the forming quality are improved. A forming system moving platform can do horizontal rectilinear motion in the Y-axis direction and the X-axis direction, the area of a forming layer face and the size of the formed part are expanded, the forming time is shortened, and theforming efficiency is improved.

The invention discloses a large-space dirt removal device with gas-sound complex fields uniformly distributed and a dirt removal method of the large-space dirt removal device. The dirt removal device comprises a device inlet, a gas-sound field uniform-distribution space, sound wave dust blowing devices, a dirt removal space and a device outlet. The gas-sound field uniform-distribution space is arranged behind the device inlet and internally provided with the sound wave dust blowing devices. The dirt removal space is arranged behind the gas-sound field uniform-distribution space. The device outlet is formed behind the dirt removal space. A gas-sound flow guide plate is arranged behind the sound wave dust blowing devices in the gas-sound field uniform-distribution space. The sound production directions of the sound wave dust blowing devices face the gas-sound flow guide plate. The dirt removal method includes the steps that after air flow is introduced into the device, the air flow is uniformly guided to form uniform air flow, then the uniform air flow and sound waves produced by the sound wave dust blowing devices are uniformized in the gas-sound field uniform-distribution space, then are uniformized and rectified through the gas-sound flow guide plate and then enter the dirt removal space, dirt removal is conducted on the device in the dirt removal space, and meanwhile local serious dirt accumulation can be prevented effectively.

The invention discloses a low-thermal-conductivity thermal insulation material and a preparation method thereof. The low-thermal-conductivity thermal insulation material is prepared from the followingraw materials of, in parts by mass, 60 parts-70 parts of fumed silica; 10 parts-20 parts of common silica; 10 parts-15 parts of silicon carbide, and 5 parts-10 parts of fibers. The fumed silica and the common silica are combined for use, so that the characteristics of good thickening property and difficulty in moisture absorption of the fumed silica can be exerted, meanwhile, the characteristic of polyhydroxyl of the common silica can be exerted, the fumed silica can be better compounded with the fibers, and the moisture absorption characteristic can be inhibited due to the low content of thefumed silica; and the silicon carbide has radiation resistance and wear resistance, the silicon carbide is used as an intermediate substance in the thermal insulation material, and the fumed silica,the common silica and the fibers are filled in the silicon carbide, so that the silicon carbide has relatively high strength on the premise of ensuring a low heat conductivity coefficient.

The invention relates to a novel absorber and an absorption type refrigeration system thereof, and belongs to the technical field of absorption type refrigeration. The novel absorber comprises a pipe box and a shell, a U-shaped pipe bundle is arranged in the shell, an upper layer spraying device and a lower layer spraying device are arranged in the shell, and the first layer spraying device is fixed to the top end of the shell and is arranged above an upper layer pipe bundle. The second spraying device is arranged in a U-shaped groove of a side U-shaped pipe bundle, two main air inlet pipes are arranged on the two sides of the shell, linearly-arranged branch air pipes are arranged between each main air inlet pipe and the shell, and the pipe box is provided with a circulating water inlet and a circulating water outlet which are connected with the pipe bundle. Circulating water of the circulating water outlet in the pipe box is utilized to exchange heat with barren liquor entering the shell so as to precool the barren liquor. Compared with an absorber structure in the prior art, the double-layer spraying and multi-position air inlet mode is adopted, so that the absorption efficiency of the absorber is improved to be about 95%.

The invention discloses a surface microstructure array with a water mist collecting function and a molding method thereof. A single microstructure of the surface microstructure array is a circular truncated cone pyramid structure, the structure is formed by overlaying multiple layers of circular truncated cones, the material is photosensitive resin, and the bottom radius of each layer of circulartruncated cone is reduced layer by layer and forms a micron structure; nano particles are distributed on the surface of the microstructure to form a micron/nano composite structure with the circular truncated cone pyramid structure; and a plurality of composite structures are uniformly distributed on the target surface of a molded part, namely, the surface microstructure array is formed. The molding method for the surface microstructure array utilizes a set of electromagnetic assisted vibration surface to project a micro-stereolithography system and follows certain steps to complete the preparation. The surface microstructure array provided by the invention can increase the contact area between the microstructure and the water mist, and improve the recovery efficiency of the water mist; the molding method provided by the invention reduces the agglomeration of nanoparticles, realizes uniform distribution and improves the forming accuracy and quality through the high-frequency vibrationof an electromagnetic auxiliary vibration device; and a mobile platform of a forming system can move horizontally and linearly in the Y-axis and X-axis directions, the area of a molding layer and thesize of the molded part are expanded, the molding time is reduced, and the molding efficiency is improved.

The invention discloses a sewage treatment precipitation device, which structurally comprises a box cover, a box body, a rotating body and a drainage structure, wherein the box cover is arranged on the box body, the box body is connected with the drainage structure, the rotating body is arranged on the drainage structure, the box body is composed of a U-shaped box and a material moving structure,the U-shaped box is provided with the material moving structure, and the drainage structure comprises an upper column, a hole column and a pipe supporting column, the hole column is connected with theupper column and the pipe supporting column in a mounting mode, the pipe supporting column is provided with an outlet pipe and an inlet pipe, the rotating body comprises a rotating body mounting shaft, an inclined flow plate and a flow detection structure, and the rotating body mounting shaft is connected with the inclined flow plate in a mounting mode. The rotating body mounting shaft rotates onthe pipe supporting column, detection is conducted through a bottom detector and an upper detector when the rotating body mounting shaft passes through the flow detection structure, water flow sampling and detection are conducted, and the detection is convenient and rapid, the distance between the rotating balls changes when the rotating balls move, reasonable control over the precipitation areaand the water flow state is achieved, and the precipitation effect and the separation efficiency are improved.

The invention discloses an oven and a hot air control device thereof; the hot air control device comprises a fan capable of rotating forwards and backwards, heating pipes, temperature sensors, and a controller; and when the fan rotates forwards, the air outlet amount of the right half part of the fan is larger than that of the left half part of the fan; the heating pipes are uniformly arranged in the circumferential direction of the fan; the temperature sensors are arranged in the oven and comprise a left side temperature sensor located on the left side of the fan and a right side temperature sensor located on the right side of the fan; a controller is used for obtaining the temperatures measured by the left side temperature sensor and the rear side temperature sensor and controlling the working state of the fan to change, and when the temperature value detected by the left side temperature sensor is larger than the temperature value detected by the right side temperature sensor, the controller controls the fan to rotate forwards; when the temperature value detected by the left side temperature sensor is smaller than the temperature value detected by the right side temperature sensor, the controller controls the fan to rotate reversely. The purpose of controlling the temperature is achieved through the control process, and uniform distribution of heat is achieved.

The invention is an power supply distribution uniting hub system, prearranging a device priority table to determine a power supply waveform of each device to provide power supply for many devices, containing: a power supplier and many devices; each device at least contains: an address receiving unit, outputting an address control signal; a power supply controller, outputting a pulse width modulation (PWM) control signal; a first transfer switch coupled with the PWM port and the power supply controller to output the power supply waveform according to the PWM control signal; and a second transfer switch coupled with the PWM port and the power supply controller to selectively switching on or off the next PWM port according to the PWM control signal.

The invention discloses a surface microstructure array with bacterial adhesion resistance and a forming method of the surface microstructure array. A single microstructure of the surface microstructure array is of a sea urchin pavilion structure, the material is photosensitive resin, and the size is micron; nano particles are distributed on the surface of the single microstructure and form a micron/nano composite structure with the sea urchin pavilion structure; and the plurality of composite structures are uniformly distributed on the target surface of a formed part to form the surface microstructure array. According to the forming method of the surface microstructure array, the preparation of the surface microstructure array is completed by using a set of electromagnetic assisted vibration surface projection micro-stereo photoetching system according to certain steps. According to the surface microstructure array, the bacterial adhesion resistance, the adsorption resistance and the self-cleaning performance are good, and the morphology and size of the microstructures are controllable. According to the forming method, through the high-frequency vibration of the electromagnetic assisted vibration device, the agglomeration of the nano particles is reduced, the uniform distribution of the nano particles is realized, and the forming precision and the forming quality are improved;and a movable platform of a forming system can horizontally and linearly move along the Y-axis direction and the X-axis direction, so that the area of a forming layer is enlarged, the size of the formed part is increased, the forming time is reduced, and the forming efficiency is improved.