218results about How to "Realize self-circulation" patented technology

The invention provides a method for producing biogas through high-solid two-phase three-stage anaerobic digestion by using perishable organic wastes, which comprises the following steps: the perishable organic wastes are hydrolyzed in a hydrolysis acidogenic reactor, and a mixture obtained after hydrolysis is acidified to generate a large number of organic acid products with low molecular weight; the bottom of the hydrolysis acidogenic reactor is communicated with the bottom of a methanogenic reactor through a circulation pump and a pipeline; the top of the methanogenic reactor is communicated with the top of the hydrolysis acidogenic reactor; and the acetic acid producing reaction is carried out in the methanogenic reactor and the methane producing reaction is continuously carried out. The invention can separate the hydrolysis acidogenic process from the acetic acid and methane producing process in the anaerobic digestion process so as to prevent organic acids generated by the perishable organic wastes from inhibiting methanogenesis. The device has simple processing procedure, low cost, easy maintenance and stable and reliable performance, is suitable for anaerobic digestion treatment of various perishable organic wastes, and has highly efficient and stable biogas production capacity of the perishable organic wastes through the anaerobic digestion.

The invention discloses a processing method for recycling aluminum dross, which comprises the following steps: adding crushed limestone and catalyst to aluminum dross, thoroughly homogenizing and mixing the three materials, carrying out catalyzed calcination on the thoroughly homogenized and mixed materials in a calcination reaction furnace, and directly grinding the calcined products or grinding the calcined products after cooling, thus obtaining the calcium aluminate powder product. The processing method has a simple operational process, and can not cause new environmental pollution, thereby according with the policy for industry development. The invention recycles the aluminum dross, simultaneously reduces environmental pollution caused by the aluminum dross, improves the environmental management on surrounding areas, and also provides a reasonable and effective way to recycle waste aluminum dross. Thus, the invention has obvious economic benefits and social benefits.

The invention discloses an experimental device for release accelerating research of oversaturated gas in under-dam watercourses. The experimental device comprises a circulating water pool, a variable-frequency water pump, a high-pressure reactor, a slope-variable thermostatic water bath and a grit chamber which are in sequence connection. A water outlet of the grit chamber is connected with a water inlet of the circulating water pool to form water circulation. The high-pressure reactor is connected with an oxygen supply box inputting oxygen therefor and provided with a gas regulating valve, a safety gas valve, a gas pressure gauge and a total dissolved gas determinator. A silt input box is arranged at the top of two side walls of the thermostatic water bath. A turbulence speeding device, a node model, a front total dissolved gas determinator, a rear total dissolved gas determinator, a front three-dimensional ADV (acoustic Doppler velocimetry) instrument and a rear three-dimensional ADV instrument are arranged in the thermostatic water bath. The experimental device is simple in structure, convenient to use and capable of satisfying mechanism research of oversaturated gas in under-dam watercourses in terms of water turbulence, silt, different watercourse node boundaries, water temperature and the like.

The invention discloses an efficient two-phase anaerobic fermentation device. The efficient two-phase anaerobic fermentation device comprises a hydrolysis acid production reactor, a high-temperature hydrolysis device and at least one methanogenesis reactor, wherein a bottom percolate storage chamber of the hydrolysis acid production reactor is connected with the bottom of the methanogenesis reactor; the lower part of the hydrolysis acid production reactor is provided with a cavity stainless cone-shaped bracket with holes; the bottom of the cone-shaped bracket is connected with the high-temperature hydrolysis device; the methanogenesis reactor is provided with an upper discharge hole and a lower discharge hole; the upper discharge hole and a feed inlet form a self-circulation pipeline; the lower discharge hole of the hydrolysis acid production reactor is connected with a rotary sprayer; the high-temperature hydrolysis device is used for receiving large particle solid separated by the cone-shaped bracket; and solid-liquid separation is carried out by a biogas residue press filter at the outlet. The device is simple in manufacturing procedure, reasonable in structure, easy in maintenance, high in fermentation efficiency and stable and reliable in performance, is suitable for anaerobic digestion of organic wastes, and meets the large-scale production requirement.

The invention provides a method for comprehensively cleaning excrement and sewage in ranch type dry-excrement-collection dairy farm with more than 3000 livestock on hand. The method comprises a dry-excrement-collection processing technology of solid excrement; solid and liquid of the sewage are separated from each other after the sewage passing through a regulating pool, and the liquid enters a homogenizing pool; anaerobic reaction of the sewage is carried out in a USR (Upflow Solid Reactor) or a UASB (Upflow Anaerobic Sludge Blanket) reactor, and produced methane is purified and stored for use; aeration treatment of the sewage is carried out in an aerobic tank; the sewage after being processed is used in planting industries or is backwashed to milking parlours. The method for comprehensively cleaning the excrement and the sewage integrates separate collection and separate treatment of the excrement and the sewage, has seasonal adaptability and a certain storing and deeply purifying capability, and realizes combination of planting and breeding.

The invention relates to a wave-driven ocean temperature differential power generation platform. Array-parallel float-type pistons absorb ocean waves that move up and down to drive the shallow and deep seawater of the ocean to realize circulation flow in the platform; the shallow and deep seawater of the ocean flows through a cold seawater diffusion chamber and a hot seawater heat dissipation chamber of a temperature differential power generation system to respectively serve as a cold source and a heat source for temperature differential power generation, and a semiconductor temperature differential power generation chip array formed by series connection is triggered to generate power, and a power generation process is finally realized. The semiconductor temperature differential power generation chip array is formed by sequentially connecting the heads and tails of a plurality of sets of P, N-type semiconductors in series through upper and lower connecting copper sheets, wherein the upper and lower connecting copper sheets are respectively connected with upper and lower heat dissipation support plates. According to the scheme of the invention, the ocean wave energy can be effectively utilized as a power source of the power generation platform, the hot and cold seawater is used as the heat source and the cold source and is combined with a temperature differential semiconductor array to generate power, so that the loss of the own energy in a traditional turbine-type temperature differential power generation process can be effectively avoided, and the efficiency of power generation can be improved.

The invention relates to a system for purifying and refining coal-bed gas, and the system for purifying and refining the coal-bed gas is used for solving the problems of high cost, high energy consumption and adversity to environmental protection of the existing coal-bed gas purification process. The system comprises a purification system, a pressurization and refrigeration system and a cryogenic distillation system; the purification system comprises a filter, a compressor, a washing tower and an adsorption system which are sequentially connected with one another; the pressurization and refrigeration system comprises a supercharger and a high-pressure heat exchanger; the cryogenic distillation system comprises a separator, a subcooler, a throttle valve and a cryogenic distillation tower; and the adsorption system is sequentially connected with the supercharger, the high-pressure heat exchanger, the separator, the throttle valve and the cryogenic distillation tower. The system for purifying and refining the coal-bed gas has the advantages of simple equipment, simplification of production process, more simplicity and convenience in system control, low cost for equipment investment and operation, short production period and high recovery ratio and purity of produced finished natural gas products, is applicable to coal-bed gases with different methane contents and has broad market application prospect.

The invention provides an anaerobic-aerobic bio-filter coupled sewage processing device and a sewage processing method. The device comprises an anaerobic bio-filter, which is filled with an anaerobic filler layer that is covered by a bio-membrane containing anaerobic ammonia oxidation bacteria, anaerobic methanation bacteria, and denitrifying bacteria; an aerobic bio-filter, which is filled with an aerobic filler layer that is covered by a bio-membrane containing aerobic ammonia oxidation bacteria and nitrifying bacteria; an aeration device, which is arranged on the bottom of the aerobic bio-filter; a passive internal circulation device, which is arranged on the top of the aerobic bio-filter; and a backwater device, which comprises a backwater pipe and a backwater pump. The provided technical scheme couples the ammonia oxidization bacteria, methanation bacteria and denitrifying bacteria into a water treatment system, the methanation, ammonia oxidation, short-cut nitrification, and denitrification can be achieved synchronously, and thus the problems that in the biomembrane method, the contact efficiency between bacteria and sewage is low and the denitrification efficiency is low are solved effectively.

The invention relates to a preparation method of sludge-straw composite biomass activated carbon, which comprises the following steps (1) sufficiently mixing and kneading municipal sludge as a main raw material, agricultural waste as an auxiliary material and wood tar as a binder, granulating, and drying to obtain sludge-straw composite particles, (2) feeding the sludge-straw composite particles into a carbonization furnace, carbonizing and activating at the same time under an oxygen-free or oxygen-limited condition to obtain a product sludge-based biomass activated carbon and pyrolysis gas, cooling the sludge-based biomass activated carbon, and packaging the cooled sludge-based biomass activated carbon, and (3) performing dust removal and purification on the pyrolysis gas to obtain wood tar, wood vinegar and non-condensable gas, returning the non-condensable gas as fuel to the carbonization furnace, returning a part of the wood vinegar as an activating agent to be sprayed into the carbonization furnace, and recycling the wood tar as a granulation raw material. The activated carbon is prepared from the sludge and the agricultural straw, the preparation method is simple, the price is relatively low, good economic benefits and ecological benefits are achieved, and high market competitiveness and popularization value are achieved.

The invention relates to a method for the in-situ production of solvent in an oil layer to exploit thickened oil. The method includes the steps that crude oil in the oil layer near a shaft is heated to a target temperature by using an electric heating device, a chemical reaction assistant is injected into a heating section to achieve the reaction condition of high-temperature hydrothermal crackingof the crude oil, light oil components and gas generated move upwards to a vapor cavity under the action of heating power and gravity, and the light oil and part of gas transferred to a vapor-liquidinterface are dissolved into the crude oil to reduce the viscosity of the crude oil and increase the yield of the crude oil; non-condensed gas left in the vapor cavity is used for expanding and supplementing energy for the vapor cavity, so that the heat loss of the vapor cavity to a top cover layer is reduced; and the crude oil discharged to a cracking reaction section is heated and then continuesto be cracked, and the crude oil discharged to a production section enters into a screen pipe and then is lifted to the ground through an underground pump. According to the method for the in-situ production of the solvent in the oil layer to exploit the thickened oil, the solvent is generated in the oil layer in situ to achieve solvent-assisted thickened oil recovery, so that the heat utilizationrate is increased, the CO2 emission is reduced, the final recovery ratio is increased, and the method has wide market application prospects.

The invention utilizes a flat plate photobioreactor integrating a fuel battery to integrate microalgae high-density culture and irradiation hydrogen production so as to form an integrative hydrogen production system. Two sections of processes of microalgae culture and photosynthetic hydrogen production are generally divided in space time, and the cultured low-density frustule needs to be concentrated and then irradiated to produce hydrogen, so that the operations need to be respectively carried out in two photobioreactors. In the microalgae hydrogen production of the invention, the low-density microalgae is inoculated into a reactor, a culture mode of enriching carbon dioxide is utilized, the biomass required by the hydrogen production can be reached by short-term culture, then dark induction is carried out, and the operation can enter a continuous irradiation hydrogen production stage. The generated hydrogen gas can be integrated into a fuel battery on a reactor and is converted into electric energy, and the hydrogen production condition can be monitored at real time by the change of current. The invention combines the two sections of processes of the microalgae culture and the hydrogen production for the first time, utilizes the fuel battery to convert the hydrogen into the electric energy and provides reliable technical support for the large-scale microalgae hydrogen production.

The invention discloses a zero-emission biological toilet. The toilet comprises a toilet flushing device, a toilet platform and an excrement treatment system, wherein a pedestal pan is arranged on thetoilet platform; the toilet flushing device is used for flushing the pedestal pan, the excrement treatment system is arranged below the toilet platform and communicated with a pedestal pan sewer pipe, and a biological digestion agent is arranged in the excrement treatment system. The toilet is characterized by further comprising a biological waste management system, the excrement treatment systemcomprises an excrement treatment box and a biological stirring device arranged in the excrement treatment box, a biological waste outlet is formed in the side face of the excrement treatment box, andthe excrement treatment system is communicated with the biological waste management system through the biological waste outlet; the excrement treatment system and the biological waste management system are arranged in a box body. According to the toilet, excrement is decomposed and digested through the biological digestion agent, environmental pollution caused by secondary emission is reduced, the excrement decomposition speed is high, biological waste is collected mechanically, and the labor force is reduced.

The invention relates to a multifunctional high flow velocity intelligent open channel experiment system, which is used to acquire high flow velocity and monitor a water level in a remote way. The multifunctional high flow velocity intelligent open channel experiment system comprises an open channel high velocity experiment device, an adjustable section device, and a wireless intelligent water level monitoring system. The multifunctional high flow velocity intelligent open channel experiment system is advantageous in that the high flow velocity, a section width, and an adjustable water depth can be acquired on an experiment water channel segment, and a water level of a reservoir is monitored wirelessly and adjusted intelligently, and therefore important scientific significance and a practical application value are provided for scientific research working in a field of fluid mechanics such as the acquisition of the flow regime of the different sections, for example, the flow velocities and the water depths.

The invention discloses a methanol fuel gasification stove which comprises an ignition device, a heating device, a gas distributing chamber, a gas producing chamber, a fuel tube, a pressurizing tube, a gas feeding pipe and a methanol storage device. Because the heating device is arranged in the gas distributing chamber, a liquid methanol fuel in the gas producing chamber is directly heated into a gas state by the heating device, the liquid methanol fuel is pre-heated so that the problem of insufficient combustion caused by direct heating of liquid methanol is prevented, and the burn-off rate is increased. Because the gaseous methanol fuel is supplied to the gas distributing chamber through the gas feeding pipe, the methanol fuel can directly enter the gas distributing chamber after being gasified, and the use of an air blower or a pressure container is reduced to a certain extent. Because the gas producing chamber is further connected with the pressurizing pipe, and the gaseous methanol fuel is conveyed to the methanol storage device through the pressurizing pipe to gradually fill a space occupied by the outflowing liquid methanol fuel and then extrude remained liquid methanol fuel to continuously flow into the fuel tube, so that the self circulation of combustion is further realized.

The present invention discloses a ketone-benzene dewaxing apparatus capable of reducing a deoiling fresh solvent. The ketone-benzene dewaxing apparatus comprises a heat exchanger unit, a dewaxing unit, a primary deoiling unit, a secondary deoiling unit and a raw material oil pumping-into heat exchanger unit, wherein the units are sequentially connected. The ketone-benzene dewaxing apparatus is further added with a first segment deoiling filtrate self-circulation pipeline and a second segment deoiling filtrate self-circulation pipeline, wherein a pipeline is led out from a pumping-out port of a first segment deoiling filtrate pump, and is introduced to a dewaxing wax tank so as to be adopted as a first segment deoiling filtrate self-circulation flow process, and a pipeline is led out from a pumping-out port of a second segment deoiling filtrate pump, and is introduced to the first segment dewaxing wax tank so as to be adopted as a second segment deoiling filtrate self-circulation flow process. According to the present invention, with the first segment deoiling filtrate self-circulation, the use amount of the second segment deoiling filtrate adopted as the first segment deoiling dilution solvent is reduced so as to provide assurance for the second segment deoiling filtrate self-circulation and ensure material balance; and with the second segment deoiling filtrate self-circulation, the use amount of the second segment deoiling fresh dilution solvent is reduced so as to reduce a fresh solvent circulation amount of the apparatus, reduce energy consumption, and provide advantages of low fresh solvent ratio and low load on the recovery system.

The invention discloses a self-circulation vertical speed changer, which comprises a box body, an oil pump and an input shaft arranged in the box body. An oil pumping pipe and an oil outlet pipe are arranged on the oil pump. The bottom end of the oil pumping pipe is connected to a lower part in the box body, and the top end of the oil pumping pipe is connected with the oil pump. The bottom end of the oil outlet pipe is connected with the oil pump, and the top end of the oil outlet pipe is connected to an upper part in the box body. The self-circulation vertical speed changer is simple and compact in structure and long in service life; and oil on the lower part of the box body is pumped to the upper part of the box body through the oil pump to realize the self circulation of oil supply, so that all gears and bearings of the speed changers can be lubricated.

The invention provides a heat radiation bipolar plate for a fuel battery and belongs to the field of heat control. The heat radiation bipolar plate comprises an oxygen plate and a hydrogen plate, wherein the oxygen plate and the hydrogen plate are buckled to form a hollow structure and are used for storing phase change mediums and radiating heat through phase changes; both the oxygen plate and thehydrogen plate comprise working parts and cooling parts; oxygen distribution runners are arranged on outer surfaces of the working parts of the oxygen plates; hydrogen distribution runners are arranged on outer surfaces of the working parts of the hydrogen plates; insulating coatings are arranged on outer surfaces of the cooling parts and are used for radiating heat outside; phase change medium runners are arranged in the hollow structure. Due to self-circulation cooling of a phase-change medium, the problems that the structure is complex, poor in reliability, and the like because of circulation water cooling, are avoided, and the system reliability is improved.

The invention discloses a cooling piece for a circuit board and a display panel employing the cooling piece. The cooling piece for the circuit board comprises a cooling piece body, wherein the coolingpiece body is provided with a plurality of cooling cavities which are arranged at intervals, the cooling cavities are used for accommodating a working medium, arbitrary one of the plurality of cooling pieces communicates with at least one of the remaining cooling cavities by a flowing passage, and each cooling cavity is provided with a condensation end and an evaporation end. According to the cooling piece for the circuit board, disclosed by the embodiment of the invention, no any circulation device is needed to be connected, the package flow of a chip is not affected, production and application are facilitated, self circulation of a refrigerating agent can be achieved without testing the heating state of each chip, and self-matching and self-balancing of cooling effects of different chips can be achieved.

The invention discloses a multifunctional green building with a natural circulation floor heating function and an indoor ventilation function. The multifunctional green building comprises a terrestrial heat circulation system and a hot air circulation system. The terrestrial heat circulation system comprises a solar panel, a heat collection water tank, a steam separator, a water supplementation tank and a capillary network. The hot air circulation system comprises a heat storage wall arranged on the face exposed to the sun, wherein the heat storage wall is used for replacing a traditional wall. A glass wall is installed on the outer side of the heat storage wall and a certain distance is formed between the glass wall and the heat storage wall. According to the multifunctional green building with the natural circulation floor heating function and the indoor ventilation function, after solar energy is converted into heat energy through the terrestrial heat circulation, self-circulation of heat is achieved by sufficiently using gravitational potential energy and siphonage, and the multifunctional green building is more environment-friendly; and meanwhile, the hot air circulation is set in an auxiliary manner, indoor air circulation is achieved according to the principle that hot air rises and cold air falls, hot air can enter indoor portions in winter, the room temperature rises, ventilation cooling can be achieved in summer, and human bodies can feel more comfortable.