19results about How to "Low construction cost" patented technology

The application discloses a kind of multi-gas source multi-user injection-production gas switching metering devices and processes for gas storage, and relates to the technical field of gas storage injection-production gas equipment, specifically to a kind of multi-gas source multi-user injection-production gas switching metering devices for gas storage, including gas field gas pipeline, low-pressure pipeline, injection-production gas pipeline, high-pressure pipeline, first gas recovery processing pipeline, second gas recovery processing pipeline;One end of the gas field gas pipeline is used to communicate with gas field, and the other end of the gas field gas pipeline communicates with the second gas recovery processing pipeline;The application provides a kind of multi-gas source multi-user injection-production gas switching metering devices and processes for gas storage, which is applied in gas storage, can realize the free switching measurement and interconnection of multiple gas sources and users in different injection-production cycles of gas storage, and realizes the standardization, serialization, integration, modularization and skid-mounted of the device, which can effectively reduce the construction period and construction cost.

A flue gas desulfurization device of desulfurization absorption tower external crystallization, comprising the following units, a flue gas desulfurization unit: comprising a main flue gas duct subunit, a desulfurization absorption subunit; a flue gas evaporation crystallization unit: comprising a secondary flue gas duct subunit, an evaporation crystallization subunit and a solid-liquid separation subunit connected in sequence; the desulfurization absorption subunit comprises a desulfurization absorption tower, a circulating pump, a circulating tank, a desulfurizer supply device, a process water supply device and an oxidizing air supply device; the main flue gas duct subunit comprises a pipeline connected to the desulfurization absorption tower as an inlet and outlet flue; a boiler induced draft fan and a damper are connected in series on the pipeline; one pipeline of the main flue gas is connected to the desulfurization absorption tower, and another pipeline is connected in parallel to a crystallization booster fan and a flue which is connected to the evaporation crystallization subunit; the evaporation crystallization subunit is additionally provided with two pipelines connected to the desulfurization absorption tower, one of which is used to introduce a desulfurization byproduct solution from the desulfurization absorption tower, and the other of which is used to return low-temperature flue gas to the desulfurization absorption tower.

This invention belongs to the field of civil engineering technology in the field of flywheel energy storage in thermal power plants. It discloses a foundation treatment method for setting up flywheel energy storage devices in collapsible loess areas. The method involves excavating 2-3 meters downwards from the surface of the collapsible loess layer, then installing bored piles for the flywheel well on the surface after the first excavation. A second excavation is then carried out on the surface corresponding to the flywheel well, reaching the lower elevation of the flywheel well's bottom slab. The loose pile portion is then removed, and the flywheel well is installed above the bored piles. Backfill soil is used to the surface height after the first excavation, followed by a layer of lime-soil. A second backfill is then used to the ground floor level, and finally, a hardened ground surface is constructed. This invention features a short construction period, low engineering cost, and a foundation treatment scheme combining bored piles and lime-soil, making it particularly suitable for the characteristics of flywheel energy storage project structures.

The utility model provides a kind of anti-vibration nut, increase O-ring in nut inside, increase the friction between nut and bolt, prevent nut from loosening because of vibration.The anti-vibration nut is used for the related operation (pipeline flange connection, fixed support, bolt fastening) needing to use bolt connection, fixed, using the nut and bolt connection, can prevent nut loosening due to vibration at connecting place, avoid the security risk due to the fastening of fastener The fastening of fastener reduces, and simultaneously can reduce the use of spring pad, reduce construction cost, improve construction efficiency.

The utility model relates to the technical field of sulphur recovery equipment, specifically a floating ball type sulphur sealing device, including inner cylinder, the inner cylinder top part sets up cylinder top flange cover, the inner cylinder bottom part sets up cylinder bottom flange cover, the inner cylinder connects liquid sulphur inlet inner connector and liquid sulphur outlet inner connector respectively, the liquid sulphur outlet inner connector extends into the inside of inner cylinder, the liquid sulphur outlet inner connector extends into the inside of inner cylinder one end upper portion opening, and opening place fixedly connected with the communicating port, the communicating port is in communication with liquid sulphur outlet inner connector, the communicating port is slidably connected with the plunger, and the plunger can block the communicating port, and the top of plunger is fixedly connected with the floating ball. The utility model discloses a floating ball type sulphur sealing device simple structure, through the floating ball drive plunger isolation process gas into liquid sulphur storage facility, and ensure that the liquid sulphur generated flows into the storage facility, eliminates the hidden danger of safety while saving the investment, and is more favorable to the maintenance of equipment.

The invention discloses a side slope frost heaving damage treatment method which comprises the following steps: measure I: embedding a plurality of heating pieces in a shallow soil body of a side slope at intervals in an array manner, and roughly extending the heating pieces along the normal direction of a slope surface; the heating piece is connected to a power supply for storing power by the solar panel; a temperature sensor is embedded in a shallow soil body of the side slope; and the controller is connected to the power supply and the temperature sensor, and is configured to send an instruction to the power supply to supply power to the heating element when the temperature sensor detects that the temperature of the soil body is reduced to a warning temperature within 0-3 DEG C, so that the heating element heats the shallow soil body of the slope. The second measure is that a plurality of drainage holes are formed in the bottom area of the side slope in the slope length direction at intervals; the drainage holes incline upwards and extend into a soil body of the side slope, and inner side orifices of the drainage holes extend into an infiltration interface of underground water; water converges into a drainage ditch arranged along the edge of the bottom of the slope from an outer hole opening of the drainage hole. According to the method, the slope frost heaving phenomenon can be treated more economically and efficiently.

This invention provides a cross-seasonal natural ice-making winter cold storage energy storage mine cooling system, belonging to the field of mine heat hazard control technology. It includes a cold storage subsystem and an underground cooling subsystem, coupled via a four-way reversing valve. The cold storage subsystem includes an ice storage tank, a water supply assembly, and a spray enhancement module. The outlet of the ice storage tank is connected to the inlet of the water supply assembly, and the outlet of the water supply assembly is connected to the first interface of the four-way reversing valve. The spray enhancement module is connected to the second interface of the four-way reversing valve. The underground cooling subsystem includes an air cooler, a second fan, a chilled water pipe, and a return water pipe. One end of the chilled water pipe is connected to the third interface of the four-way reversing valve, and the other end is connected to the inlet of the air cooler. The outlet of the air cooler is connected to the return water pipe, and the end of the return water pipe furthest from the air cooler is connected to the fourth interface of the four-way reversing valve. This mine cooling system has a simple structure, low energy consumption, low cost, and high energy storage efficiency.

This application provides an engine durability testing method, system, device, and readable storage medium. The engine durability testing method includes: acquiring the compressor impeller speed through sensors; adjusting the opening of an electronic valve based on the impeller speed and a preset speed under high-altitude conditions; acquiring the exhaust temperature of the turbocharger turbine; adjusting the opening of a cooler electronic valve based on the exhaust temperature and a first preset temperature value under high-altitude conditions; acquiring the compressor outlet air temperature of the turbocharger; and adjusting the opening of an electronic vent valve based on the outlet air temperature and a second preset temperature value under high-altitude conditions. Through the technical solution of this application, tests simulating high-altitude environments can be conducted in plains environments without the need to construct a high-altitude environment chamber, improving the engine's durability verification capability, fully verifying engine reliability, and reducing the engine failure rate under high-altitude conditions.

This utility model relates to the field of photovoltaic PHC pipe pile forming technology, specifically to a photovoltaic PHC pipe pile drilling and driving control device, including a casing, a straightening component, a detection component, and a support base. The support base is fixed to the ground, and the casing is coaxially arranged above the support base. The casing is threadedly connected to the support base through a lug at the bottom. Multiple sliding grooves are vertically spaced along the spiral path on the inner wall of the casing. Multiple straightening and detection components are arranged inside the casing. The straightening component extends into the corresponding sliding groove and is slidably connected to it. The detection component is fixedly arranged on the corresponding straightening component. During drilling, one side of the straightening component can abut against the outer edge of the spiral blade of the auger drill rod. During pile driving, one side of the straightening component can abut against the outer side of the pipe pile. This device can determine the deviation state of the auger drill rod and the pipe pile, and through the straightening component, push the auger drill rod and the pipe pile to correct the deviation in time, ensuring the verticality of the auger drill rod and the pipe pile.

The utility model relates to a water-adjacent piling platform, belongs to piling construction technical field, specifically is a kind of water-adjacent piling platform of steel pipe erection, including patterned steel plate, still include support assembly;Steel casing, the steel casing is installed on patterned steel plate, shock-absorbing rubber plate is fixedly installed between the steel casing and patterned steel plate;The utility model reaches the effect of low cost, erects, removes fast, construction cycle is short, does not destroy riverway environment, solves the problems, such as high construction material cost of existing patent, multiple steel casing is needed, and additional piling and pulling pile operation are increased, greater influence is caused to surrounding environment and sensitive structure, construction cost and construction time are greatly increased.

The utility model relates to a composite radio frequency coaxial cable. The cable comprises an inner conductor which is of a spiral tubular structure; the optical fiber is embedded in the inner conductor, and an optical fiber filling ointment is filled between the optical fiber and the inner conductor; the insulating layer is arranged on the outer side of the inner conductor; the shielding layer is arranged on the outer side of the insulating layer; and the sheath layer is arranged on the outer side of the shielding layer. According to the utility model, the optical cable and the radio frequency coaxial cable are of an integrated structure, optical waves and radio frequency signals can be transmitted simultaneously, the advantages of the radio frequency coaxial cable structure and the optical cable transmission performance are combined, and the problems of easy damage, signal interference, low construction efficiency, poor compatibility with the existing system and the like of the optical cable in the prior art are solved; efficient and stable transmission of light wave and radio frequency signals is achieved, and meanwhile construction cost and difficulty are reduced.

The present application relates to the technical field of cast-in-place pile construction, and discloses a stirring structure for curing slurry muck of a cast-in-place pile empty pile section, which comprises a excavator with a removed excavating bucket, the excavator comprising a movable body and a swing arm, a power head being hingedly connected to the swing arm, a stirring drill rod being connected to the power head, and a stirring drill bit being arranged at the bottom of the stirring drill rod; a hollow cylinder is movably arranged on the outer periphery of the lower section, and the hollow cylinder is movably connected to the lower section; the power head drives the stirring drill rod and the stirring drill bit to synchronously rotate, slurry is sprayed out of a slurry outlet, high-pressure gas is sprayed out of a gas outlet, the drill rod blades and the drill bit blades synchronously stir the slurry muck and the curing slurry, and the hollow cylinder is in a free state and is pressed and rotated by the slurry muck. The slurry muck is rapidly cured by stirring the curing slurry and the slurry muck and spraying the high-pressure gas, and the strength of the original soil can be reached in a short time, thereby ensuring the normal walking of the mechanical equipment in the construction site.

The present application belongs to the field of bridge crane replacement, and mainly relates to a large-scale bridge crane quick replacement method under restricted space conditions, comprising the following steps: installing a support beam below the crane, installing a lifting beam at a certain height above the crane, installing multiple towers on different module vehicles, moving the module vehicles to the two sides of the old crane, and supporting under the lifting beam; placing a lifting device above the lifting beam and connecting with the bottom support beam, lifting the support beam and the old crane to a certain height; after rotating the old crane by a certain angle in place by the module vehicle, the lifting device lowers the old crane, and the disassembly is completed; repeating the above steps to install a new crane. In the restricted working space, the module vehicle and the tower combination are used to replace the bridge crane through the in-place rotation mode, the occupied space is small, the modular disassembly is used, the construction time is effectively shortened, the efficiency is improved, and the method is suitable for construction of various sizes and scenes.

The invention provides a dust removal pipeline hoisting method, and relates to the technical field of dust removal pipeline hoisting, and the dust removal pipeline hoisting method is used for installing a second pipeline between two existing brackets below a first pipeline which has been operated, and arranging a first lifting lug and a second lifting lug at an interval in the circumferential direction of the outer wall of the second pipeline; operating the first crane to hoist the second pipeline to a preset installation elevation position; the first crane is operated, and one end of the second pipeline horizontally penetrates into an existing support; a lifting rope of a second crane bypasses the side, deviating from the second pipeline, of the first pipeline and is connected with a second lifting lug, lifting of the second crane is matched with descending of the rope of the first crane, and the second pipeline is driven to rotate and swing around a swing shaft in the length direction of the second pipeline until the second pipeline rotates to the position under the first pipeline; and the other end of the second pipeline penetrates into the other existing bracket. According to the dust removal pipeline hoisting method, the dust removal pipeline can be additionally arranged under the condition that normal production is not affected.

The utility model provides a photovoltaic thermal insulation integrated plate, which belongs to the technical field of photovoltaic thermal insulation plates and comprises photovoltaic glass, a thermal insulation plate, a metal plate, a junction box and a through hole. The photovoltaic glass is located on the outermost layer of the integrated plate, the heat preservation plate is located on the inner layer of the integrated plate, and the metal plate is arranged between the photovoltaic glass and the heat preservation plate. The junction box is arranged on one side of the photovoltaic glass and is electrically connected with the photovoltaic glass, the metal plate is of a wavy, concave-convex or flat-plate-shaped plate body structure, wave crests or protrusions of the metal plate are close to one side of the photovoltaic glass, wave troughs or recesses of the metal plate are close to one side of the heat preservation plate, and the heat preservation plate further comprises a pressing plate. According to the photovoltaic heat preservation integrated plate, the defect that the construction period of on-site layered installation of a traditional photovoltaic heat preservation integrated plate is long is overcome, and the construction efficiency is improved.

This utility model discloses a phosphogypsum drying oven arch and drying oven. The arch includes an arch body with an inner surface layer and an outer surface layer on both sides. The arch body includes a steel reinforcement frame in a mesh structure and a first insulation layer formed within the mesh. This utility model uses a steel reinforcement frame and a lightweight insulation layer (rock wool insulation material), which greatly reduces the overall weight of the arch. The reduced weight lowers the load-bearing pressure on the drying oven foundation, thereby reducing the cost and workload of foundation construction. At the same time, the lighter arch is more convenient to install and transport, reducing construction difficulty and related costs.

The application discloses a main bridge steel structure construction method and relates to the technical field of bridge construction. The specific steps comprise the following steps: dividing regions, installing baffle plates and pier columns, installing steel pipe piles and platform support columns, installing inter-column supports and sliding beams to form sliding tracks, repeatedly constructing the south bank, completing platform support covering a river, installing lower chord rods and lower bridge decks, installing upper chord rods and upper bridge decks, installing upper-layer cantilevers and lower-layer cantilevers, assembling sliding units, repeatedly assembling sliding units until closure, hoisting the last sliding unit and completing installation of the main bridge steel structure. The construction method can reduce operation risks, shorten construction period, save materials and reduce costs.

This utility model discloses a drainage structure for construction joints in subway stations, belonging to the field of subway station construction technology. It includes a drainage pre-reserved groove located at the construction joint of the main structure. A water-stop steel plate is tightly attached to one side wall of the drainage pre-reserved groove. A drainage pipe is placed inside the drainage pre-reserved groove, and a filling material is placed between the drainage pipe and the bottom of the drainage pre-reserved groove. Permeable concrete is filled above the drainage pipe in the drainage pre-reserved groove. This utility model effectively prevents the drainage pipe holes from being blocked by wrapping the surface of the drainage pipe with non-woven permeable geotextile and dense wire mesh. Covering the drainage pipe with permeable concrete and ensuring the water-stop steel plate is tightly attached to the drainage groove effectively allows water in the main structure to collect in the drainage pipe through the highly permeable concrete and then be discharged through the drainage pipe. This utility model structure avoids the need for secondary trenching for drainage when leakage occurs in the subway station, ensuring the integrity of the main structure and saving subsequent construction costs.

A low-capacitance environment-friendly intelligent track traffic signal special flexible cable is characterized by comprising two signal lines, a filling body, a belting layer and a sheath layer, the cable core assembly comprises two groups of signal wire pairs, one group is a working wire pair, the other group is a standby wire pair, functions of lightning protection and stray capacitance elimination and a comprehensive waterproof function are taken into consideration, so that the cable has low capacitance and excellent wear resistance, is applied to occasions such as new construction or quality improvement and reconstruction of urban rails or subway lines, greatly reduces the construction cost of railway signals, and has good application prospects. The cable is simple in structure, considerable in economic value and application value, low in capacitance, excellent in cable water resistance, interference resistance and wear resistance and small in signal attenuation, the safety and reliability of line operation are greatly improved, the railway signal construction cost can be effectively reduced, and the cable has popularization and application value.