414results about How to "Save land area" patented technology

A suspension maglev rail transit system includes an orbital system, a suspension system, a control system and a car system, wherein the control system comprises a drive system, a guidance system and asuspension control system, wherein the track system is suspended in the air through upright posts, the car system is suspended vertically below the track system through the suspension system, and thedrive system and the guidance system cooperate to drive the car system to operate in the track system. The invention utilizes the levitation force with the permanent magnet repulsion force as the main force and the electromagnetic regulation as the auxiliary force to suspend the car on the air track, and realizes the stable operation through the non-contact traction of the linear motor. The invention has the advantages of low energy consumption, high safety, no land occupation, low cost, strong climbing ability, small turning radius and wide adaptability.

The invention discloses a precession-type backfill grouting ground source thermal energy conversion precast pile device, which comprises a plurality of precession-type backfill grouting prefabricated screw piles respectively embedded into pile holes, wherein a vertical heat exchanger is embedded in each screw pile; the inlet end and the outlet end of each vertical heat exchanger respectively extend out of an opening at the upper end of the screw pile to be respectively connected with a horizontal liquid-feeding collecting pipe and a horizontal liquid outlet collecting pipe in a bearing platform or a cushion layer; centring brackets are arranged at an interval of 1-3 m along the length direction of each vertical heat exchanger; each precession-type backfill grouting prefabricated screw pile comprises a hollow pile core, wherein the bottom of the pile core is provided with a cone-shaped pile head; a screw blade is arranged on the position far away1-3m from the lower part of the outer wall of the pile core; and a post grouting reinforcing layer is poured between the middle upper part of the outer wall of the pile core and a pile hole wall. The precession-type backfill grouting ground source thermal energy conversion precast pile device comprises a plurality of precession-type backfill grouting prefabricated screw piles, and the vertical heat exchanger is embedded in each screw pile; the pile foundation construction and the ground source heat pump construction are integrated so as to avoid a drilling and pipe-laying program of a ground source heat pump system on the ground, greatly lower the front-end investment cost and save the land use area; and the post grouting reinforcing layer is poured between the middle upper part of the outer wall of the pile core and the pile hole wall so as to enlarge a heat conduction area, improve the heat conduction performance and simultaneously improve the pile body bearing capacity.

The invention provides a method for treating refractory wastewater by virtue of a supercritical water oxidation technology. The method comprises the following steps of: feeding the preheated wastewater into a salt separator for supercritical desalination, heating an oxidant which is preheated previously through a heat exchanger to a desired temperature, feeding the heated oxidant and the desalinated wastewater into a supercritical water oxidation reactor from the two ends of the reactor, respectively, controlling the system pressure by a back pressure valve, and carrying out a supercritical water oxidation reaction to degrade pollutants in the wastewater into non-toxic matters such as CO2, N2 and H2O; feeding the clean high-temperature and high-pressure fluid obtained after the reaction into the heat exchanger to exchange heat with the wastewater and the oxidant, respectively, and then cooling and separating, returning the excessive oxidant to the supercritical water oxidation reactor and causing the liquid into a normal-pressure gas-liquid separator, discharging the gases such as CO2 and N2 through the top of the normal-pressure gas-liquid separator, and discharging the treated clean water from the bottom of the normal-pressure gas-liquid separator. The method for treating the refractory wastewater by virtue of the supercritical water oxidation technology has the advantages of being high in wastewater treatment efficiency without secondary pollution, and suitable for treating the refractory wastewater different in concentration.

An ecological method using artifical marshland system for controlling N-P pollution includes such steps as sequentially flowing the rain or sewage in sand deposition pool, in stage-one free-surface artificial marshland (staying for more than 1.5 hr), in zeolite undercurrent marshland containing zeolite and cinder (staying for more than 1 hr), and in stage-two free-surface artificial marshland (staying for more than 8 hr). Its advantage is high effect.

The invention relates to the technical field of bicycle management, in particular to an intelligent environment-friendly bicycle parking device which comprises a tower body, a PLC control system arranged on the tower body, a rotating mechanism in the tower body, and a lifting mechanism in the tower body, wherein a bicycle packing opening and a bicycle taking opening are formed in the tower body; conveying belts and intelligent card readers are arranged in the bicycle packing opening and the bicycle taking opening respectively; a plurality of bicycle parking brackets are arranged on the inner side wall of the tower body; the lifting mechanism is arranged on the rotating mechanism; an electro-hydraulic movable manipulator and a scanning mechanism are arranged on the lifting mechanism; the rotating mechanism, the lifting mechanism, the conveying belts, the intelligent card readers, the electro-hydraulic movable manipulator and the scanning mechanism are electrically connected with the PLC control system. The intelligent environment-friendly bicycle parking device is safe, reliable, neat in parking, intelligent, environmentally friendly, fast and convenient in parking and taking, and small in occupied area, and has the advantages that the owner of a bicycle needs not to worry about stealing and knocking of the bicycle any more, and the urban land area is saved.

The invention relates to a large-diameter steel sleeve heat exchange device capable of extracting the geothermal energy, and belongs to the technical field of heating ventilation air conditioners capable of saving energy and reducing emission. The device mainly includes a ground source heat exchange well composed of a steel sleeve with the bottom being sealed, a PE inner tube, a filtering device, an impurity precipitation groove, a heat insulating plate and a water circulating flow diversion device. According to the connection relation, the steel sleeve is inserted into the ground, the ground source heat pump heat source side returned water is communicated with an upper end opening of the steel sleeve, and the PE inner tube is arranged in the steel sleeve; the filtering device is fixed inside the bottommost end of the PE inner tube; the impurity precipitation groove is formed in the bottommost end of the steel sleeve well; the heat insulating plate wraps the PE inner tube; the water circulating flow diversion device is arranged at a water inlet of the well and connected to the PE inner tube. By means of the large-diameter steel sleeve heat exchange device capable of extracting the geothermal energy, the problem that a soil source heat pump system is large in occupied space is solved, and the heat exchange amount of a single-opening ground source well is greatly increased.

The present invention relates to an underground pipe alkali removal technology, which is characterized that an alkali removal pipe with filtration holes are paved 0.5-5 meters underground with an interval of 10-1000 meters. Through paving the alkali removal pipe one time, the present invention can be used for a plurality of years, present invention underground water with alkali enters into the alkali removal pipe and gets removed through the leakage function, and the alkali removal effect is very good. Land above the alkali removal pipe can be used for plantation, which saves land occupied by an alkali removal channel, and the land utilization rate and economic benefits of land are increased, and the production cost is lowered.

The invention provides a slot type solar heat-collecting device and belongs to the technical field of solar energy utilization in the new energy source field. The slot type heat-collecting device is mainly used for solving the problems of connecting the pipelines, increasing the heat-collecting efficiency, increasing the volume, lowering the manufacturing cost, and the like. The device is characterized in that the end part of a vacuum heat-collecting pipe at a focus axis of a parabola slot type condenser lens is fixed on a bracket and the condenser lens is rotated around the heat-collecting pipe in order to track the sun, thereby being convenient to connect the pipelines and relieve the load of the condenser lens. The heat-collecting pipe is of a spiral runner through type structure, is provided with a cylindrical glass pipe shell on the exterior and is provided with a heat-collecting core pipe on the interior for axially passing through the vacuum glass pipe, so as to increase the heat-absorbing uniformity and heat-collecting effect and reduce the resistance. The heat-collecting core pipe is connected to an end part sealing element through a compensator, thereby being capable of freely dilating and maintaining the vacuum tightness. A plurality of vacuum heat-collecting pipes are serially connected; and when the vacuum seal materials cannot meet the temperature demand, an end part structure for reducing the work temperature of the sealing filler is adopted.

The invention discloses novel spring-stepped scene-layered sewage treatment equipment and relates to the technical field of sewage treatment equipment. The sewage treatment equipment is composed of a grid well, an adjusting tank, an anaerobic tank, a water collection tank, a horizontal subsurface flow constructed wetland, surface flow constructed wetlands, an effluent water collection tank and water body purifying plants, wherein the anaerobic tank is arranged at the center of the adjusting tank; the horizontal subsurface flow constructed wetland is arranged on the upper layer of the anaerobic tank; the water collection tank is arranged at the center of the horizontal subsurface flow constructed wetland; several layers of surface flow constructed wetlands are sequentially arranged on the periphery of the horizontal subsurface flow constructed wetland; a layer of horizontal subsurface flow constructed wetland is also arranged on the periphery of the surface flow constructed wetlands; and the horizontal subsurface flow constructed wetland and the surface flow constructed wetlands are filled with constructed wetland padding, and water body purifying plants are planted therein. The novel spring-stepped scene-layered sewage treatment equipment disclosed by the invention has the advantages of novel and reasonable structure design and good using effect, the using cost can be effectively lowered, secondary pollution is avoided, the land occupation is saved, and the equipment is efficient, stable and maintenance-free.

The invention relates to a ceramic raw material independent-grinding centralized preparation technique and device and belongs to the technical field of ceramic raw material preparation. The ceramic raw material independent-grinding centralized preparation technique comprises the steps that firstly, various single kind of raw materials are crushed independently through a crusher; secondly, the crushed single kind of raw materials are conveyed to a ball mill for continuous ball milling; thirdly, the raw materials subjected to ball milling and mud are conveyed into a slurry mixing and storing tank according to a formula to be evenly mixed; and finally, evenly-mixed finished slurry is conveyed to a drying tower to be dried. The ceramic raw material independent-grinding centralized preparation device comprises a hard material treatment device, a mud treatment device and a slurry drying device. By the adoption of the technique and device, the existing disorder situation of raw materials for processing ceramic can be avoided, and the technique and device have remarkable economic benefits.

The invention discloses a parking device, which comprises a parking platform and a lifting appliance. The parking device is characterized by further comprises a main rack, movable supporting columns and roller components. The main rack comprises a front-side support, a rear-side support and a connecting crossbeam. The front-side support and the rear-side support are arranged parallelly mutually from front to back, the connecting crossbeam is fixedly connected between the rear side of the upper portion of the front-side support and the front side of the upper portion of the rear-side support, and both the front-side support and the rear-side support are seated and fixedly connected onto a foundation during usage. Two ends of one side of the parking platform are respectively hinged on the corresponding movable supporting columns, and two ends of the other side of the parking platform are respectively arranged on the front-side support and the rear-side support correspondingly via the corresponding roller components. The parking platform is driven by a front-side winch and a rear-side winch of the lifting appliance to be capable of translating from a lower side position on the lower portion of the main rack to an upper side position on the upper portion of the main rack, or translating from the upper side position to the lower side position.

The invention relates to the technical field of air-conditioning systems for data computer rooms, and discloses a natural cooling system adopting reverse-flow air heat exchange for a data computer room. The natural cooling system is applied to the data computer room, and comprises a heat exchanger and a server cabinet, wherein the server cabinet is arranged in the data computer room; the heat exchanger is a reverse-flow air heat exchanger, and comprises an inner circulating air duct, an outer circulating air duct, and a heat exchange core used for carrying out heat exchange on air in the inner circulating air duct and the outer circulating air duct; and flow guide fans are arranged at an air outlet port of the inner circulating air duct and an air outlet port of the outer circulating air duct respectively. The natural cooling system further comprises a compressor refrigeration system, wherein the compressor refrigeration system comprises an indoor unit and an outdoor unit; the indoor unit is connected with the outdoor unit through a refrigeration pipeline; and an air outlet port of the indoor unit communicates with a space below a raised floor. The natural cooling system disclosed by the invention carries out refrigeration by virtue of the reverse-flow air heat exchanger in low-temperature seasons and carries out refrigeration by virtue of a compressor system in high-temperature seasons. The whole system adequately utilizes a natural cold source of outdoor fresh air for indirect heat exchange, thus saving energy and increasing efficiency.

The invention relates to a technology for preparing high-cleanliness and high-octane gasoline from methanol through a one-step catalysis method. The process of preparing gasoline from methanol is a strong heat release process, and existing technologies for preparing gasoline from methanol at home and abroad all adopt recycle gas (which mainly contains mixed methane, ethane, hydrogen, propane, butane, pentane, carbon monoxide, carbon dioxide and the like) as a heat taking medium to take away heat generated in a reactor, so as to control the outlet temperature of the reactor; liquefied gas (mainly containing propane and butane) produced by a device per se is adopted in the technology to substitute the recycle gas and enters the reactor to serve as a heat removal medium, and the liquefied gas rarely participates in reaction under the same reaction condition, the reaction product is basically unchanged. The technology has the advantages that a recycle gas compressor is not needed, the equipment investment is greatly reduced, the running power consumption of the device is reduced, the heat exchange flow of the device is optimized, the device is simple, stable and reliable in operation, and meanwhile, the public engineering grade is also reduced, so that the technology has significant practicability, huge economic benefits and wide application prospect.