31results about How to "Good for long run" patented technology

The invention discloses a cathode of a film-free air microbial fuel cell and a manufacturing method thereof. The manufacturing method comprises the following steps: mixing conductive black with poly methyl phenmethyl siloxane serving as a diffusion layer material of a cathode in a mass ratio of 3: (10-13), evenly coating the mixture on one surface of a stainless steel mesh serving as a carrier of the cathode material, and drying for one hour; mixing a cell cathode catalyst with 5% of naphthol solution by based on a proportion of 1mg:(2-8)uL, processing with ultrasound for 30 minutes, evenly coating on the other surface of the stainless steel mesh, and drying for one hour; and cutting rubber into a gasket with the same size as a cell box cathode pressing plate, and fixing the rubber gasket with the cathode pressing plate to obtain the cathode. Through the invention, the manufactured cell cathode is simple in structure, low in cost and easy to realize industrialization, can be used for manufacturing the microbial fuel cell with high performance and low cost, and can acquire more considerable electric energy effectively in the process of waste water treatment.

The invention belongs to the technical field of cutting equipment, and provides a door and window aluminum profile cutting device which comprises a base, a lifting mechanism, a saw cutting mechanism and a pressing mechanism, the top face of the base is provided with a containing groove with the same width as the aluminum profile and a first cutting seam perpendicularly intersecting with the containing groove, and the lifting mechanism is connected to the upper portion of the base and provided with a lifting table; the saw cutting mechanism is connected with the lifting table and provided with a saw blade right opposite to the first cutting seam, and the pressing mechanisms are symmetrically arranged on the two sides of the saw blade. The pressing mechanism comprises a spring and a pressing plate, one end of the spring is connected with the lifting table, and the other end of the spring is connected with the pressing plate. The pressing plate is located above the containing groove and below the saw blade. The arranged pressing mechanism and the saw cutting mechanism act synchronously through the lifting mechanism, aluminum profiles to be cut can be pressed and loosened before and after cutting, assembly line work is facilitated, and the cutting efficiency is improved; and during cutting, the aluminum profile is pressed into the containing groove through the reset force of the spring, and the stability in the cutting process is improved.

The present invention relates to an intelligent thermal metering system and a metering method thereof. The system comprises an indoor smart host, an outdoor smart host, an indoor temperature collector, a heating control valve, a building heat meter, a heat company server, a property management machine, and a local server. Firstly, the temperature collector sends the collected temperature data to the indoor smart host, then the indoor smart host counts the accumulated continuous time of the heating control valve in an opening state, the indoor smart host sends the received temperature data and time data to the heat company server through the Ethernet and also can send the temperature data and time data to the outdoor smart host. Finally, one of metering modes can be determined by a heat company. According to the system and the method, the problem that an existing thermal metering apportionment system can not be changed after installation and operation is solved, the heat company is supported to select and change a thermal metering standard method according to the actual operating conditions of thermal metering, the loss is reduced, the construction cost is reduced, and convenience is provided to a user.

The invention belongs to the technical field of sewage treatment, and particularly relates to an artificial wetland system for treating a black and odorous water body and an operation method of the artificial wetland system. The artificial wetland system comprises a water inlet area, a water purifying area, a water outlet area, an aeration system and a sampling openingport; the water inlet area isarranged at the front end of the water purifying area; a water inlet is designed in the outer side of the water inlet area, and small holes are evenly distributed in the inner side of the water inletarea; the water purifying area is sequentially filled with a first-layer matrix, a second-layer matrix, a third-layer matrix, a fourth-layer matrix and a soil layer from bottom to top; the aeration system is mounted at the bottom of the front end of the water purifying area; the water outlet area is arranged at the rear end of the water purifying area; a water outlet is formed in the outer side of the water outlet area, and the water outlet and the water inlet keep the relative height difference; and the height of the water inlet is greater than the maximum height of the soil layer, the wateroutlet is parallel to the height of the fourth-layer matrix in height. The artificial wetland system conducts aeration for eight hours every day, the gas-water ratio is 10:1, and the hydraulic retention time is 2 d. According to the artificial wetland system, the purification effect on pollutants in the black and odorous water body is improved obviously, the transparency is improved well, and thepungent smell is relieved well.

The invention relates to a method and a system for releasing a database space. The method comprises the following steps: receiving data to be stored, and recording receiving time of the data to be stored; according to a set creation rule and the recorded receiving time, determining whether to create a new database; setting tags for created databases according to a preset time format; establishing a database list, and sorting the databases according to time information in the tags; deleting the first n databases according to a predetermined database deletion parameter. According to the method and the system for releasing the database space, the data receiving time is adopted to automatically judge whether to create the new database, the first several databases can be self-deleted according to the set database deletion parameter, the number of current databases is kept in a constant state, and the problem that an original storage space cannot be released is solved, so the system can be normally operated for a long time without limitations of the storage space.

The invention discloses an integrated sealed liquid lead bismuth alloy oxygen concentration sensor which mainly comprises a signal unit, an instrument supporting unit and a core oxygen measuring element. A solid oxide electrolyte ceramic probe provided with a reference electrode in the core oxygen measuring element is fixedly arranged in a protective steel sleeve; the protective steel sleeve is mechanically connected with a stainless steel supporting cylinder; the lower end part of an electrode wire is inserted into the reference electrode, and the upper end of the electrode wire is connected with a signal quick connector which is connected with the positive electrode of the signal unit through a connecting wire; the upper end of the stainless steel supporting cylinder is mechanically sealed by a stainless steel sealing outer connector thread of an insulating end socket, one end of the stainless steel sealing outer connector is connected with the cathode of an electromotive force signal display instrument through a signal connecting wire, and the other end of the stainless steel sealing outer connector is grounded. When the core oxygen measuring element of the oxygen concentration sensor is inserted into the liquid lead-bismuth alloy to be measured, the signal unit visually obtains the electromotive force, and the oxygen concentration in the liquid lead-bismuth alloy is solved according to the relational expression of the electromotive force and the oxygen concentration.

The invention discloses a microalgal internal-circulating fluidized-bed membrane bioreactor. The membrane bioreactor comprises a feeding device, a reaction device and a discharging device, wherein the feeding device and the discharging device both communicate with the reaction device; the feeding device is used for discharging sewage into a reaction shell; a partition plate is vertically arranged in the reaction shell and divides the interior of the reaction shell into a reaction area and a mixed reaction area; two end surfaces of the partition plate are fixedly connected with the side wall of an inner cavity of the reaction shell; a gap is reserved between the bottom surface of the partition plate and the lowest end of the bottom surface of a reaction area; the reaction area communicates a mixed reaction area through the gap; the top of the reaction zone communicates with the feeding device; the bottom surface of the mixed reaction area is of a square structure; the bottom end of the inclined bottom surface and the outer edge of the bottom surface of the mixed reaction area are integrally formed; an aeration device is arranged at the bottom of the mixed reaction area; a membrane assembly is vertically arranged in the reaction area; the top of the membrane assembly communicates with the discharging device; and the top of the membrane assembly is fixedly connected with the inner wall of the reaction shell through a bracket.

A tubular intelligent energy-saving boiler system comprises a base (1). A columnar boiler (2) is arranged on the base and is provided with a shell. The boiler is provided with a combustion chamber (8) inside, the combustion chamber is used for heating a water pipe (11), and a gas-water separator (16) is arranged on the top of the boiler (2). The tubular intelligent energy-saving boiler system is characterized in that the bottom of the boiler (2) is provided with a water inlet pipe (15), one end of the water inlet pipe (15) is communicated with the water inlet of the spiral water pipe (11), and the other end is communicated with the water outlet of a heat exchanger (6) through a throttle valve (4), the water inlet of the heat exchanger (6) is communicated with an ion water processor (7); the water inlet pipe (15) is connected with an inflation valve (5) for filling the water into the water pipe (11); the hot water outlet of the boiler is provided with a water temperature probe; outside the boiler is equipped with an intelligent control device (10). The tubular intelligent energy-saving boiler system has simple structure and high steam output rate.

The invention relates to a radio power generation device, and discloses a graphene / single atomic layer GaS / gallium arsenide wireless generator. A layer of single atomic layer GaS is formed on a gallium arsenide substrate passivated by ammonium sulfide, and then attached A layer of graphene, with a first electrode and a side electrode, direct contact between the graphene and the single atomic layer gallium sulfide surface of gallium arsenide to form a heterojunction; Gallium contacts form a Schottky junction and create a Schottky barrier that collects radio frequency waves (sub-6G) emitted by the source. The quantum nature of the radio frequency waves excites hot electrons in the graphene and tunnels them The process forms an electric current. The invention directly converts external radio frequency waves into DC power, and can provide power to electronic devices such as wearable devices and sensors anytime and anywhere. Compared with traditional wireless charging equipment, the generator is more flexible, has higher efficiency, and has a simpler device structure.

The present invention proposes an axial flux reluctance motor with phase-to-phase coupling without a stator yoke, which includes a stator and an axial double-sided rotor. , the stator windings are wound radially around the stator teeth. The rotor adopts block or non-block structure. When the block structure is adopted, the rotor is composed of a U-shaped laminated iron core and a non-magnetic frame, which are evenly distributed on both axial sides of the stator teeth and embedded in the non-magnetic frame; when a non-block structure is adopted , the rotor is composed of a whole permeable core. The motor proposed in the present invention has coupling between two adjacent energized phases, which can not only shorten the length of the motor magnetic flux path, reduce the loss, volume and cost of the motor, but also increase the conduction time of each phase, improve the utilization rate of the winding, and reduce the torque ripple , to increase the power density and torque density of the motor; at the same time, the rotor structure on both sides of the axial direction can also effectively avoid unilateral magnetic pull, reduce operating noise, and improve the stability of motor operation.

The invention relates to an intelligent heat metering system and its metering method, comprising an indoor intelligent host, an outdoor intelligent host, an indoor temperature collector, a heating control valve, a building heat meter, a heating company server, a property management machine, and a local server. First, the temperature collector sends the collected temperature data to the indoor smart host; then, the indoor smart host counts the cumulative duration of the heating control valve open state; then, the indoor smart host sends the received temperature data and time data through the Ethernet It can be sent to the server of the thermal power company, and can also be sent to the outdoor smart host; finally, the thermal power company can determine one of the metering methods. The invention solves the problem that the existing heat metering apportionment system cannot be changed after installation and operation, supports thermal power companies to select and change heat metering standard methods according to the actual heat metering operation conditions, reduces losses, reduces construction costs, and provides life convenience for users.

The invention belongs to the technical field of sewage treatment, and particularly relates to an artificial wetland system for treating a black and odorous water body and an operation method of the artificial wetland system. The artificial wetland system comprises a water inlet area, a water purifying area, a water outlet area, an aeration system and a sampling openingport; the water inlet area isarranged at the front end of the water purifying area; a water inlet is designed in the outer side of the water inlet area, and small holes are evenly distributed in the inner side of the water inletarea; the water purifying area is sequentially filled with a first-layer matrix, a second-layer matrix, a third-layer matrix, a fourth-layer matrix and a soil layer from bottom to top; the aeration system is mounted at the bottom of the front end of the water purifying area; the water outlet area is arranged at the rear end of the water purifying area; a water outlet is formed in the outer side of the water outlet area, and the water outlet and the water inlet keep the relative height difference; and the height of the water inlet is greater than the maximum height of the soil layer, the wateroutlet is parallel to the height of the fourth-layer matrix in height. The artificial wetland system conducts aeration for eight hours every day, the gas-water ratio is 10:1, and the hydraulic retention time is 2 d. According to the artificial wetland system, the purification effect on pollutants in the black and odorous water body is improved obviously, the transparency is improved well, and thepungent smell is relieved well.

The invention discloses a method for producing vitamin C by elec-trodialysis with a bipolar membrane. In the method, the elec-trodialysis with the bipolar membrane is applied to the generation of ascorbic acid in the vitamin C production process. The method comprises the following steps of: a, arranging a module between a pair of electrodes; b, pumping electrolyte into an anode chamber and a cathode chamber, pumping sodium ascorbate into a conversion chamber, and pumping gulonic acid methyl ester into a hydrolysis chamber for circulation; c, applying DC between the anode and the cathode; d, timely removing products according to the change of materials in the hydrolysis chamber, and separating the products to obtain the sodium ascorbate; and e, according to the change of the PH value in the conversion chamber, removing the products of the conversion chamber, and separating the products to obtain the vitamin C. In the method, a byproduct alkali generated in the elec-trodialysis process is fully utilized to complete hydrolyzing the gulonic acid methyl ester, a catalyst in the hydrolysis process is saved, the pH value of the alkali chamber is also reduced, and the service life of the system is prolonged.

The invention provides a walking positioning detection device of rail type mobile equipment. The walking positioning detection device comprises a transmission wheel train sub-device, a transmission chain, a double-encoder sub-device and a tensioning sub-device; the transmission wheel train sub-device is fixed to the rail type mobile equipment and walks along with the rail type mobile equipment; the transmission wheel train sub-device comprises a plurality of bend wheels and one or more tensioning wheels; the transmission chain is laid on a walking direction frame of the rail type mobile equipment; the transmission chain is wound on the bend wheels and the tensioning wheels of the transmission wheel train sub-device; and one encoder of the double-encoder sub-device is used for walking positioning, and the other encoder of the double-encoder sub-device is used for detecting the elongation of the chain. The encoders serve as counting elements, the walking positioning detection device is suitable for a walking positioning device of the rail type mobile equipment, the positioning accuracy of the device is high, and the positioning process is stable and reliable.

A through-flow intelligent energy-saving boiler system, comprising a base (1), on which a furnace body (2) is arranged, the furnace body is in the shape of a column, the furnace body has a shell, and the furnace body is provided with a combustion chamber (8), and the combustion chamber is supplied with water The tube (11) is heated, and the top of the furnace body (2) is provided with a gas-water separation device (16), which is characterized in that the bottom of the furnace body (2) is provided with a water inlet pipe (15), and one end of the water inlet pipe (15) It is connected with the water inlet of the spiral water pipe (11), and the other end is connected with the water outlet of the heat exchanger (6) through the throttle valve (4), and the water inlet of the heat exchanger (6) is connected with the ion water processor ( 7) are connected to the water outlet; the water inlet pipe (15) is also connected to the inflation valve (5) for inflating the water entering the water pipe (11); a water temperature probe is provided in the hot water outlet of the furnace body, An intelligent control device (10) is arranged outside the furnace body. The invention has simple structure and high steam output rate.

The invention discloses a double-fed wind driven generator novel seam allowance assembling structure comprising a machine support (1) and an end cap (2). The machine support (1) is provided with an inner seam allowance (3). The end cap is provided with an outer seam allowance (4). A gap exists between an outer circumference surface of the outer seam allowance (4) of the end cap (2) and an inner circumference surface of the inner seam allowance (3) of the machine support (1). A plurality of positioning holes A (5) are arranged uniformly along a circumferential direction on the end cap (2). The machine support (1) is provided with positioning holes B (6) matched with the positioning holes A (5). Positioning pins (7) are arranged inside the positioning holes A (5) and the positioning holes B (6). The invention also discloses an assembling method for the assembling structure. The beneficial effects of the present invention are that: problems of air gap uniformity and concentricity of front and back end cap bearing chambers are solved; the consistency of the double-fed wind driven generator novel seam allowance assembling structure is good, so that smooth bearing maintenance in wind fields is possible; the structure is more stable, and scratches do not easily occur; long-term operation is facilitated; and the economical efficiency is good.