31results about How to "Achieve natural circulation" patented technology

The invention relates to an intelligent ecological fish-vegetable intergrowth culture box, which comprises an LED (light emitting diode) plant growth lamp (1), a plant growth tray (2), an aquatic animal culture area (3) and an aquatic plant cultivation tray (4). The LED plant growth lamp (1) is hung above the culture box through a barb member, the plant growth tray (2) is connected to the aquatic plant cultivation tray through five cylinders, the aquatic animal growth area (3) is the space of the culture box, the aquatic plant cultivation tray (4) can be paved with filter materials such as perlite, cobblestone and active carbon. The LED plant growth lamp (1) adopts a wireless network signal receiver to receive the light quality of a computer host, and the light source is automatically adjusted through a luminescence signal. The plant growth tray (2) is in a barrier form, and materials such as sponge, foam plates and fibers can be used as the culture medium. The aquatic animal culture area (3) is provided with an EC sensor, a water level adjusting device and a temperature sensor. The intelligent ecological fish-vegetable intergrowth culture box is used for the planting and cultivation in high mountains, grassland, plant factories, greenhouses, households and regions which are lack of water.

The invention discloses a quick draining pavement structure for urban low-lying roads. The structure comprises a pavement motor way surface layer, a flexible base is arranged below the pavement motor way surface layer, soil base is arranged below the flexible base, a water-resisting layer is arranged between the flexible base and the soil base, and one flexible base side facing the soil base is design as a stepped structure. The stepped surface at a road section low-lying part is high, and the stepped surface at a road section high convex part is low, if the height of some stepped surface is lower than those of two adjacent stepped surfaces, or some stepped surface only has one adjacent stepped surface and the stepped surface is lower than the adjacent stepped surface, a gravel drainage channel can be disposed below the stepped surface, and a filter layer is arranged between the flexible base and the gravel drainage channel. The quick draining pavement structure provided by the invention can solve the technical problems of impeded pavement drainage and easy waterlogging in existing urban road low-lying areas, and is especially suitable for paving of urban roads with large elevation difference between adjacent road sections.

The invention discloses a micro flow velocity measuring device, a thermal hydraulics experiment table with the same and a method, which belong to the field of metering equipment. By arranging a Venturi flow measuring pipe and a rotor flow velocity measuring device, the original micro flow velocity can be amplified through the Venturi throat pipe section, and then the flow velocity in the pipe is reflected through the rotating speed of the rotor flow velocity measuring device. According to the rotor flow velocity measuring device, through a special adjusting air cavity structure, the buoyancy of the rotor flow velocity measuring device can be adjusted by changing the volume of an adjusting air cavity in the flow velocity measuring process, the whole rotor flow velocity measuring device cansuspend in to-be-measured fluid, a second sleeve and a center shaft can relatively rotate in a contactless mode in an ideal state, and friction force is reduced as much as possible. Therefore, the micro flow velocity measuring device can be suitable for measuring the micro flow velocity. In addition, the invention further provides the thermal hydraulics experiment table, natural circulation can beachieved, the internal flow velocity can be accurately adjusted, and the thermal hydraulics experiment table is suitable for tests of the equipment at different flow velocities.

A movable drying loss prevention freezing display cabinet solves the problems that an existing refrigerating show case is difficult to move as a whole, the decoration and display effect is poor, brightness is not enough, drying loss is severe if unpacked frozen food is displayed in the case, and food quality and shelf life are affected. The display cabinet is technically characterized by comprising a sunshade, supporting columns and an open frame provided with universal wheels and composed of a front cabinet body, side cabinet bodies and a control panel, the outer side faces of the cabinet bodies are provided with brightening belts and a lamp box, and the brightening belts are provided with LED light sources. A drying loss prevention protective cover of a combined structure is placed in a transparent display window of an air cooling type movable horizontal freezer. The display cabinet is reasonable in structural design, easy to move as a whole, high in lighting brightness and low in energy consumption, and maintains the advantages of the good propaganda and display effect of the air cooling type movable horizontal freezer; overall appearance attractiveness is added, drying loss of the unpacked frozen food is effectively reduced, shelf life of the food is greatly prolonged, and the quality of the frozen food is guaranteed.

The invention relates to treatment equipment for synchronous nitrogen and phosphorus removal of domestic sewage. The equipment comprises an anaerobic zone, an anoxic zone, an aerobic zone and a mixing zone that pretreated domestic sewage enters in order. The bottom of the equipment is also provided with a precipitation zone for precipitating and discharge of precipitates. With no need for pipeline connection, the treatment equipment for synchronous nitrogen and phosphorus removal of domestic sewage can solve the refluxing problem of a mixed solution to reach the standards of reclaimed water refluxing.

The invention discloses a self-circulation air cathode microbial fuel cell based on bubble buoyancy and a method. The self-circulation air cathode microbial fuel cell based on bubble buoyancy comprises an anode chamber and a cathode chamber; the cathode chamber is located above the anode chamber, and the cathode chamber communicates with the anode chamber; the self-circulation air cathode microbial fuel cell is characterized in that the upper part of the cathode chamber has a taper with a small upper part and a large lower part, a vapor-liquid outlet is formed in a top end of the cathode chamber, and the vapor-liquid outlet communicates with a storage device arranged above the cathode chamber through a first pipeline; the inside diameter of the first pipeline is the same as the diameter of a bubble generated by a bubbling sieve, and the storage device communicates with the anode chamber through a second pipeline; according to the self-circulation air cathode microbial fuel cell disclosed by the invention, the density difference of working media is used as the transmission power of substance, an air pump and height difference are fully used to realize the natural circulation of the substance, the cell performance is improved, the operation cost is reduced, and the purpose of reducing the energy consumption is achieved; and the self-circulation air cathode microbial fuel cell can be widely used in the fields of energy, chemical industry, environmental protection, etc.

The invention relates to a self-cleaning heat exchanger. The self-cleaning heat exchanger comprises a discharge pipeline 1, a solid-liquid separation pipe box 2, a tubular heat exchanger 3, a particlecirculating pipe 4, a particle adjusting valve 6, a guide barrel 7, a material inlet 9 and a particle mixer 10. Self-cleaning of the heat exchanger is carried out through dead-weight outer circulation of solid particles, the problems about scaling in the operation process of the heat exchanger and separation circulation of the solid particles are fundamentally solved, and the effects that no scaling or fouling is generated in the operation process of the heat exchanger, and it is guaranteed that the heat exchanger efficiently runs in an energy-saving manner are achieved. Separation and storage of the solid particles and end sealing of the heat exchanger are combined, so that the structure of the self-cleaning heat exchanger is simplified.

The invention relates to a high-pressure hydrolysis self-circulating device for oil, comprising a heating furnace, a bottom coil arranged in the heating furnace and communicated with the lower end of a hydrolysis tower through a feeding pipe, more than 10 discharging holes evenly arranged on the bottom coil, a standpipe arranged at the upper end in the heating furnace and communicated with the upper end of the hydrolysis tower through a discharging pipe, more than 10 feeding holes evenly arranged on the standpipe, and more than 10 vertical pipes distributed evenly and communicated with the feeding holes on the standpipe and the discharging holes on the bottom coil. The high-pressure hydrolysis self-circulating device for oil can automatically complete circulation, save electricity and energy without the phenomena such as escaping, bursting, dripping and leakage and has high safety factor.

The invention belongs to the technical field of solar and biomass energy utilization and in particular relates to an overground solar methane tank capable of realizing natural circulation of a hot water system. According to the overground solar methane tank, the natural circulation of the solar hot water system is realized by virtue of a siphon force generated by density difference of cold and hot water, the fermentation temperature of methane in a methane fermentation tank is increased, and the rate of methane production by fermentation is increased. The overground solar methane tank comprises the solar hot water circulation system and the methane fermentation tank, wherein the solar hot water circulation system comprises a solar heat collector, an ascending pipe, a heat storage water tank, a descending heat dissipation pipe set, a water return and collection tank and a water return pipe; a water outlet in the top of the solar heat collector is communicated with the heat storage water tank through the ascending pipe; the heat storage water tank is communicated with the water return and collection tank through the descending heat dissipation pipe set; the water return and collection tank is communicated with a water inlet in the bottom of the solar heat collector.

The invention discloses a circulating condensation boiler. The circulating condensation boiler comprises a boiler body, the lower side and the upper side of the right end of the boiler body are fixedly connected with a water inlet and a water outlet respectively, the boiler body communicates with the water inlet and the water outlet correspondingly, a gas furnace is installed below the inner partof the boiler body, the outer wall of the left side of the gas furnace is connected to the inner wall below the left side of the boiler body in a sleeving mode, the right end of the gas furnace communicates with the left end of a pressure reducing valve, and the outer wall of the middle of the pressure reducing valve is connected to the inner wall below the right side of the boiler in a sleeving mode. According to the circulating condensation boiler, odor removing for smoke is carried out through two activated carbon plates, filtering impurities in the smoke is carried out through two filter plates, the qualified smoke is exhausted to the atmosphere through a smoke outlet, and the problem that in the using process of the existing circulating condensation boiler, although a condensation type boiler condenses water vapor in the smoke, the harmful substances in the flue gas can be conveniently removed, impurities and odor in the smoke can still bring health problem to people and the atmosphere is solved.

The invention relates to the technical field of furniture, and in particular relates to an automatic temperature control water heating bed. In winter, the temperature is relatively low, people usually use tools such as electric blankets and the like to get warm, and the tools are high in energy consumption and uncomfortable in use and have potential safety hazards. The automatic temperature control water heating bed comprises a bed head, a bedstead, a mattress, an electric heating device, a circulating component and a radiating pipe, wherein the radiating pipe is embedded in the mattress; a water outlet in the upper end of a heating water jacket of the circulating component is connected with a water inlet of the radiating pipe through a water pipe and a valve, and is also connected with an exhaust valve; an overflow pipe is connected to a pipeline between the water outlet of the water jacket and the valve and is connected with a water tank; the lower part of the water tank is connected with a backwater port of the heating water jacket through a water pipe; a water outlet of the radiating pipe is connected to a pipeline between the backwater port of the water jacket and the water tank. The automatic temperature control water heating bed disclosed by the invention is simple in structure, and the mattress has functions of heating and heat preservation, so that the automatic temperature control water heating bed replaces the conventional heating equipment including heated brick beds, electric blankets and the like; a water circulating system is reasonable in design, hot water is circularly heated naturally, a water pump is not needed, and the temperature is constant, so that the automatic temperature control water heating bed is convenient, safe and reliable in use.

A self-locking type vehicle top cover comprises a push-and-pull guide rod, a guide plate and a sliding member; the guide plate is fixed at the top cover; one end of the push-and-pull guide rod is hinged to a vehicle frame assembly; the sliding member is fixed at the other end of the push-and-pull guide rod and slidably arranged on the guide plate; the guide plate is provided with a sliding portion and a self-locking portion, the sliding portion extends in a direction parallel to one side edge of the top cover, and the self-locking portion is formed in a manner that one end of the sliding portion vertically extends towards an outer side of a vehicle; and the sliding member is capable of sliding to and fro along the sliding portion in the direction parallel to the side edge of the top cover, and the sliding member is limited by two vertical side walls of the self-locking portion to move in the extension direction of the sliding portion after the sliding member slips into the self-locking portion along the sliding portion. The whole operation is simple, laborsaving and smooth, and under the condition that the top cover is opened, when the vehicle is driven to a bumpy road, the top cover can be firmly self-locked without jitter and noise or the like.