349 results about "Water extraction" patented technology

The invention discloses a multifunctional fully-degradable mulching film with water taking, slow release and soil improvement functions and a preparation method thereof, and belongs to the technical field of agricultural mulching films. The method comprises the following steps: preparing a PVA aqueous solution; the preparation method comprises the following steps: extracting a 3-8wt% nano cellulose solution from plant fibers by a two-step DES method; preparing a silicon source dispersion liquid; adding 10 parts of a nanocellulose solution, 1.25 parts of a silicon source dispersion liquid and 20 parts of glycerol into 100 parts of a PVA aqueous solution to obtain a film coating liquid; adding humic acid and an ion-based fertilizer into the film coating liquid, uniformly mixing, and carrying out curtain coating and drying to form a base film; the preparation method comprises the following steps: preparing 8-12wt% of a hydrophobic degradable material solution, and performing electrostatic spinning on a base film by using the solution to form a Janus structure, thereby obtaining the multifunctional full-degradable mulching film which can realize water extraction from air. The device has a function of taking water from air and a fertilizer slow release function, can release different fertilizers in a gradient manner, and meets the requirements of plants in different growth cycles. After being used, the soil conditioner can be directly turned into soil, the rest part directly acts with the soil, and PVA and humic acid synergistically improve the soil environment.

The invention discloses an energy efficiency improving system for a shallow buried pipe heat exchanger. A closed or semi-closed heat storage area unit is arranged in a surrounding mode through area heat insulation plates. The heat storage area unit comprises a plurality of heat storage wells, a plurality of shallow water lifting wells, a plurality of deep water lifting wells, a plurality of solar water heaters, a heat storage water tank, a plurality of U-shaped vertical buried pipes and a ground source heat pump machine room; the buried depth of the regional heat insulation plate is arranged in soil of an earth crust constant temperature zone and penetrates through an earth crust daily variable temperature zone and an earth crust annual variable temperature zone from top to bottom, the buried depth H of the regional heat insulation plate is larger than or equal to H2 + 0.5-1 m, and H2 is the depth of the annual variable temperature zone; the heat storage well is of an inner and outer sleeve type hollow structure provided with a plurality of horizontal branch pipes shaped like a cross or a Chinese character'jing ', and the horizontal branch pipes are arranged in soil of a crustal annual variable temperature zone and a constant temperature zone. The buried depth H of the upper horizontal branch pipe is greater than or equal to H1 + 0.5-1m, and the buried depth H of the lower horizontal branch pipe is greater than or equal to H2 + 0.5-1m; h1 is the daily variable temperature zone depth, and H2 is the annual variable temperature zone depth.

This application relates to the technical field of astragalus polysaccharides, and specifically relates to a method for extracting astragalus polysaccharides. A method for extracting astragalus polysaccharides includes the following steps: primary water extraction, secondary water extraction, vacuum concentration, primary alcohol precipitation, secondary alcohol precipitation, and purification. Among them, in the primary water extraction: soak astragalus with a weak alkaline solution, then heat to boiling and carry out extraction, and filter to separate the primary precipitate and the primary extract. By using a weak alkaline solution in the primary water extraction step, this application destroys cell walls, increases the solubility of polysaccharides, and promotes the release of polysaccharides, significantly improving the extraction rate of astragalus polysaccharides.

The invention discloses a blocking, lifting, storing and supplementing four-in-one rainwater collecting and supplementing system for a dry farmland, which relates to the field of irrigation and comprises a water blocking unit, a photovoltaic power generation water lifting unit, a high-level water storage unit and an irrigation and water supplementing unit, the water retaining unit comprises a dam arranged in a ditch and is used for intercepting and storing constant water flow or seasonal water flow of a river channel and supplying water to the irrigation water supplementing unit for irrigation; the photovoltaic power generation water lifting unit comprises a photovoltaic power generation assembly and a water pump water lifting assembly, the photovoltaic power generation assembly is used for converting solar energy into electric energy, and the water pump water lifting assembly is used for transferring water stored in the water blocking unit to the high-position water storage unit through a water pump and a water pipe which communicate with each other; the high-position water storage unit comprises a water storage container located at the high position and is used for water supply of the irrigation water supplementing unit for irrigation. The water retaining unit, the photovoltaic power generation water lifting unit, the high-position water storage unit and the irrigation water supplementing unit are combined with one another, water retaining, water lifting, water storage and irrigation are integrated, and the utilization rate of rainwater resources can be remarkably increased.

The present invention discloses a water recycling and auxiliary irrigation device for garden landscapes, specifically relating to the field of garden irrigation, comprising a cultivation mechanism, the cultivation mechanism comprising a base, a water receiving tray fixedly mounted on the outer wall of the base, a plurality of planting racks provided on the top of the water receiving tray, a water storage barrel fixedly connected to the top of the base, a first water pumping pipe provided between the water storage barrel and the water receiving tray, and a first one-way valve fixedly installed at the connection between the first water pumping pipe and the water receiving tray, an irrigation mechanism provided in the inner cavity of the water storage barrel, a top cover provided on the top of the water storage barrel, and the irrigation mechanism comprising a threaded hollow pipe rotatably mounted inside the top cover. By providing the irrigation mechanism, the present invention enables the irrigation range of the nozzle to change with the height of the hollow water pipe during irrigation, thereby avoiding the need for conventional fixed irrigation points. At the same time, a recycling mechanism is provided to fully collect and utilize rainwater, thereby being more environmentally friendly, resource-saving, and more convenient for practical use.

The utility model relates to a soil pressure gauge embedding structure for short pipe replacement construction, which comprises a probe hole arranged at the top and the side edge of a pipeline, a paddle binding bag arranged at the bottom of the probe hole, slurry in a soft plastic state filled in the paddle binding bag, and a soil pressure gauge arranged in the paddle binding bag and perpendicular to the radial direction of the pipeline. The soil pressure gauges in the probe holes right above the pipeline are horizontally arranged, and the soil pressure gauges in the probe holes on the two sides of the pipeline are laterally arranged, so that the formation pressure change can be effectively conducted to the soil pressure gauges, and the accuracy of monitoring results of the soil pressure gauges is ensured; the bottom of the water pumping pipe is wrapped with geotechnical cloth to prevent the sand from entering the water pumping pipe and blocking the water pumping pipe; the top of the water pumping hole is backfilled with clay to prevent surface water from entering a soil layer around the pipeline through the water pumping hole; the bearing capacity of the soil layer is reduced; and the pipeline structure safety is influenced.

An outdoor misting fan and a cooling device. The outdoor misting fan includes a fan atomization assembly including a atomizer and a lower housing, an installation assembly including a cylinder connected with the lower housing, an elastic clamping piece sleeved outside the cylinder and a guiding member, and a battery located inside the cylinder and electrically connected to the fan atomization assembly. The elastic clamping piece can adapt to various types of water storage bottles, and during assembly, the cylinder is directly placed inside the water storage bottle, which increases the available space for the battery. Users do not need to carry bottle when carrying the outdoor misting fan, as commercially available water bottles can be easily fitted and used as a handle. The internal cylinder not only provides additional space for the battery but also facilitates water extraction, which meet the users' needs for long-term and portable usage.

The present invention discloses a stratified water sampling device for water quality testing, which belongs to the field of environmental monitoring and includes a mother chamber and a sampling device. The mother chamber includes an installation chamber and a pressure chamber. The installation chamber is arranged on the top of the pressure chamber, and the top of the installation chamber is open. The sampling device is arranged in the installation chamber. The sampling device includes a collecting bottle and an opening and closing mechanism, and the opening and closing mechanism is slidably arranged in the collecting bottle. The present invention can more accurately perform fixed-depth stratified sampling of water bodies, and can cope with various water body conditions by adjusting the water pressure. According to needs, multiple devices of the present invention can be bundled and centrally released through external equipment. A single release can complete the sampling of multi-layer water bodies, which is more efficient. In addition, the split design of the collecting bottle makes it easier to take and transport after sampling is completed.

The invention belongs to the technical field of building group flood influence analysis, and provides a rural building group flood disaster loss assessment method and system for solving the problem that the accuracy of an assessment result is low due to the fact that an existing building flood loss function does not fully consider uncertainty factors in the loss assessment process. The method comprises the following steps: simulating a dynamic evolution process of a flood disaster by adopting a hydrodynamic model to obtain an inundation depth map and a maximum inundation depth map; comparing the submerging water depth map with the SAR image water body extraction data and the social media data to obtain a flood simulation result; combining the building classification information with the maximum submerging depth map to obtain the submerging depth of each building; calculating component information of the building; according to the component information and the submerging depth, building flood vulnerability analysis is carried out, and the total loss of all buildings is determined; and evaluating the effect of the current disaster prevention measure according to the total loss under different disaster prevention measures. The method can provide a scientific basis for building flood loss assessment and disaster prevention decision.

The invention relates to the technical field of water conservancy and hydropower construction, in particular to water quality detection equipment in water conservancy and hydropower construction, which comprises a movable seat and a fixed ring fixedly connected to the movable seat, a barrel is fixedly connected to the inner side of the fixed ring along the circumferential direction, an air cylinder is fixedly connected to the inner side of the barrel, and a detection head is fixedly connected to the end part of a telescopic rod of the air cylinder; u-shaped plates are symmetrically and fixedly connected to the top of the movable seat. An electric winding roller is started to rotate forwards to loosen a hose, the hose drives a water pumping head to move downwards into water, then a water pump is started, the water pump pumps water through the water pumping head, the water firstly makes contact with a mesh enclosure, the mesh enclosure filters impurities in the water, the water with the impurities filtered out continues to flow upwards to be pumped and collected, and water quality detection is completed. Meanwhile, water flow further drives an impeller to rotate, the impeller rotates to drive a rotating rod to rotate, the rotating rod drives a scraper to rotate through a bevel gear and an outer gear ring, and the scraper rotates to scrape impurities attached to the mesh enclosure so as to prevent blockage from affecting water extraction, so that the subsequent water quality detection efficiency is improved.

The invention discloses an automatic water body extraction method based on a decision tree and a random forest, and relates to the technical field of water body remote sensing monitoring, the method is based on multispectral remote sensing data, through water body index calculation, Hot index calculation and gradient calculation, rough classification results of water bodies, lands and clouds are extracted, and the rough classification results of the water bodies, the lands and the clouds are extracted; random sampling is carried out on the rough classification result to generate training samples of a water body, land and cloud; constructing a feature set containing spectral features, texture features and principal component transformation features; and inputting the training sample and the feature set, training a random forest model, and performing water body classification prediction on the remote sensing image by using the model. According to the method, a simple decision tree and a random forest are combined for water extraction, automatic extraction of samples is realized, automatic recognition of lake water is further realized, the water and shadows are effectively distinguished through gradient features and texture features, cloud and clear sky pixels are accurately separated by utilizing a hot index, the cloud is prevented from polluting training samples, and cloud layer interference is avoided.

The utility model discloses a polysaccharide water extraction system, and particularly relates to the technical field of saccharide extraction, the polysaccharide water extraction system comprises a supporting bottom plate, the top of the supporting bottom plate is fixedly connected with a liquid pump, a plurality of vertical rods and positioning rings located on one sides of the vertical rods, inserting rods are inserted into the tops of the vertical rods, and the two ends of each inserting rod are fixedly connected with a limiting block and a top block respectively; a fastening bolt is inserted into one side of the top end of the vertical rod, and a resin separation column is arranged on one side of the vertical rod. According to the device, firstly, the plurality of resin separation columns are connected in series, so that sugar components can be extracted from raw material liquid in a grading manner, the liquid in required steps can be extracted as required by rotating the three-way valve, the extraction and detection of intermediate separated liquid are facilitated, and the plurality of resin separation columns are connected end to end through the connecting hose and the connecting short pipe; different raw material liquids can be conveniently and flexibly combined and used when being separated and extracted, so that the liquid required by a target is obtained, and the use is convenient.

The utility model relates to the technical field of pipe pile hole cleaning, in particular to a hole cleaning device suitable for a prestressed pipe pile, which comprises a fixed pipe pile, a circulating assembly is arranged at the top of the fixed pipe pile, the circulating assembly comprises a fixed frame, and the fixed frame is fixedly connected to the top of the fixed pipe pile. A high-pressure water pump is fixedly connected to the inner wall of the fixing frame, a high-pressure water pipe fixedly communicates with the bottom of the high-pressure water pump, a sewage pipe is movably connected to the interior of the fixing pipe pile, and a sewage pump fixedly communicates with one end of the sewage pipe. According to the hole cleaning device suitable for the prestressed pipe pile, the circulating assembly is installed, sludge soil at the bottom of the pipe pile is washed through a high-pressure water pump, sludge, silt and sundries in the pipe pile are mixed with water, and the mixed sundries enter the pipe pile through filtering holes of an outer pipe to be filtered for the second time; and the water subjected to secondary filtration enters a secondary sedimentation tank through a sewage pipe, and enters the high-pressure water pump again through a water pumping pipe for use.

The invention relates to the technical field of reservoir discharged water temperature improvement, and discloses a modular layered water taking device and method based on wireless charging, and the device comprises a gate groove assembly, a gate assembly, a wireless power supply and communication assembly, a grabbing beam, a two-way portal crane, electrical and control equipment and the like; the method comprises the steps that the grabbing beam is controlled through the two-way portal crane, and the gate assembly is grabbed and moved to vertically ascend and descend along the gate groove assembly to be positioned to the designated water taking layer position; when the gate assembly moves to a charging area, a wireless charging device of the gate assembly is automatically aligned with a wireless charging base of the power supply and communication assembly, a non-contact energy transmission channel is established based on the electromagnetic induction principle, and the battery assembly is charged. The controller dynamically adjusts the opening degree of the gate leaf or triggers closing according to data, water taking efficiency is optimized, and structural safety is guaranteed. According to the invention, the water conservancy project and the Internet of Things technology are deeply fused, and each module forms an organic whole through intelligent control; the method is particularly suitable for medium-large hydro-junction projects needing frequent adjustment of water taking layers.

The application discloses a ship-mounted in-situ calibration device and method for a seabed suspended sediment concentration profile probe, which comprises a cylindrical water tank main body, an ASM and a support frame thereof, a driving motor, a rotating paddle, a cylindrical support, a water pump and a valve. The method comprises the following steps: horizontally arranging the ASM in the water tank through the support frame; extracting in-situ seawater on the ship deck for calibration by using the water pump; driving the paddle by the motor to uniformly mix the water sample; and extracting the water sample by opening the water extraction valve at different time intervals, wherein the water extraction valve is arranged on the side of the water tank and is consistent with the measurement elevation of the ASM, is used for extracting the water sample at the same elevation of the ASM, and tests the consistency of each sensor of the ASM. The water sample concentration can well cover the in-situ concentration range under normal circumstances by sampling at different time intervals in the static water sedimentation process. The in-situ seawater is extracted on the spot for calibration, so that the difference between the particle size range and the concentration range of the sediment suspension liquid prepared in the laboratory and the actual observation station is avoided.

This invention discloses a rapid drilling device and method for the floor of coal mine roadways. It includes a drilling rig, drill rods, and a drill bit. The drill rods consist of a transition drill rod and a circular drill rod. A water channel is provided through the transition drill rod, the circular drill rod, and the drill bit at a certain thickness. A water extraction pipe is provided inside the transition drill rod and the circular drill rod. A water extraction pipe and a water supply pipe are sleeved through the center of the drill arm. The drill arm's water extraction pipe communicates with the drill rod's water extraction pipe and the drill bit's inner cavity. The drilling rig's water supply pipe communicates with the drill rod's water channel. During drilling, water injected from the water supply pipe enters the bottom of the hole through the water channel. The water at the bottom of the hole, carrying drill cuttings, is extracted sequentially through the hollow drill bit, the drill rod's water extraction pipe, and the drill arm's water extraction pipe under external negative pressure. This allows drilling mud to be continuously extracted from the center of the drill rod during drilling, eliminating the need for special drill bit removal and cuttings disposal, shortening the drilling progress, greatly improving drilling efficiency, ensuring the floor pressure relief effect, and providing technical support for safe production on site.

The utility model discloses a multifunctional energy-saving system integrating water lifting and wastewater concentration, which comprises a multifunctional tower, a demisting area, a heat exchange area, a gas distribution and water return area and a wet desulphurization area are sequentially arranged in the multifunctional tower from top to bottom, and an exhaust port is arranged at the top of the multifunctional tower; the gas distribution and water return area is used for uniformly distributing desulfurized wet flue gas and collecting moisture condensed from the wet flue gas; a wastewater inlet of the wastewater circulating tank is connected with a high-chlorine industrial wastewater source, and a wastewater outlet of the wastewater circulating tank is connected with a wastewater inlet of the heat exchange area; a water inlet of the waste water cooling tower is connected with a waste water outlet of the heat exchange area, a water outlet of the waste water cooling tower is connected with a waste water circulating tank, and stirrers are arranged in the waste water circulating tank and the waste water circulating tank; the water inlet end of the recycling water tank is connected with the gas distribution and water return area, and the recycling water tank is used for storing condensate water collected by the gas distribution and water return area. According to the utility model, the comprehensive utilization of water and flue gas waste heat is realized, and the production cost is reduced while the energy consumption is saved.

The invention relates to the technical field of plastic molding machines, and discloses a plastic injection molding machine with a cooling mechanism, the plastic injection molding machine comprises a base, the top of the base is fixedly provided with a melting box and an injection machine, and one side of the base is provided with a discharging plate; the cooling device is located on one side of the base, the cooling device comprises a cooling box arranged on one side of the base, a plurality of connecting plates are fixed between the cooling box and the base, the outer wall of the cooling box is connected with a water injection pipe and a water drainage pipe, and a heat conduction pipe is arranged in the base; the cooling device adopts a reasonable design, a cooling box conveys cooling liquid to a heat conduction pipe through a circulating pump, through mutual cooperation of a water suction pump, a control valve, a one-way valve, a valve body and an opening and closing valve, after cooling operation is completed, cooling water in the heat conduction pipe can be pumped out through the water suction pump, cooling water residues are avoided, and the cooling efficiency is improved. And the die can smoothly carry out next cycle operation, the service life of the die is prolonged, and the operation efficiency of the die is improved.

The application relates to the technical field of UPS, in particular to a protection device for machine rooms and transformer substations, which comprises a protective shell, a cooling mechanism for cooling the electricity inside the protective shell, an air inlet shell fixed to one side of the outer wall of the protective shell, a fixing cylinder inserted into one end of the outer wall of the air inlet shell, an air extraction fan installed on the inner wall of the fixing cylinder, and air outlet holes with equal distances arranged on the top of the outer wall of the air inlet shell. The cooling mechanism is provided, the air extraction pump is started, the air outside can be extracted into the air inlet shell, the filter screen can preliminarily filter the dust in the air, the filtered air can enter the protective shell through the hollow shell, the heat exchange pipe and the exhaust pipe, the water extraction pump is started, the water in the water storage shell can be sprayed onto the outer wall of the heat exchange pipe through the output pipe and the liquid spraying nozzles on the liquid spraying pipes, and the air on the heat exchange pipe can be cooled.

The utility model discloses a municipal sewage sedimentation tank which comprises a tank body, a sliding plate, a sludge scraping driving assembly, a limiting assembly and a fixing block, a water inlet pipe is arranged on the left side of the upper end of the front side wall of the tank body, a sludge discharge pipe is arranged in the middle of the lower end of the rear side wall of the tank body, guide rods are symmetrically arranged between the front inner wall and the rear inner wall of the tank body, the interior of a sliding plate is slidably connected with the outer arc faces of the four guide rods, and scrapers are arranged on the outer edges of the front side face and the rear side face of the sliding plate; the scrapers are in sliding connection with the adjacent inner walls of the pool body, a connecting cylinder is arranged in the middle of the fixing block, a water pumping pipe is arranged at the upper end of the connecting cylinder, connecting rods are symmetrically arranged on the outer side wall of the fixing block, and floating barrels are arranged at the ends, away from the fixing block, of the connecting rods; according to the municipal sewage settling tank, the probability that settled sludge floats upwards again due to flowing of sewage is reduced, the sewage settling effect is improved, the sludge is automatically cleaned and scraped, and the settled sewage is cleaner.

The present disclosure provides a seawater cooling control system and method, which is applied to the field of marine engineering technology, and includes: a cooling water well, a first temperature sensor, a water level gauge, a water pump, a water delivery pump, a monitoring buoy, a second temperature sensor, a flow meter and a controller. The first temperature sensor and the second temperature sensor monitor the temperature in the well and the coral reef area respectively, the flow meter quantifies the regional water flow velocity, the water level gauge ensures the stability of the water volume in the well, and the data is analyzed in real time by the controller to generate control instructions. The difference between the ambient temperature and the bleaching threshold, the cooling water temperature in the well and the coral reef flow velocity are used as input variables, and the flow demand of the water delivery pump is dynamically calculated through a preset rule base to achieve adaptive regulation. Through the collaborative feedback of the dual temperature sensors, the water delivery temperature is strictly controlled within the coral tolerance threshold to avoid heat stress bleaching. The combination of stratified water extraction and fuzzy control algorithm reduces energy consumption compared to traditional deep-water extraction schemes and avoids the negative impact of shading measures on zooxanthellae.

The invention discloses an exhausting-inflating dual-purpose drainage well device and a construction method. A floating partition plate capable of moving up and down is arranged in a well pipe body, and the floating partition plate divides an inner cavity of the well pipe body into an inflating area and an exhausting area; the inflating area is communicated with an air inlet pipe for inflating the inflating area, and is provided with a first filtering part which is used for discharging air towards the soil filling area and is provided with a plurality of filtering holes; the air pumping area is communicated with a water pumping exhaust pipe which is used for pumping water in the air pumping area and generating negative pressure, and is provided with a second filtering part which is over against the filter material area and is provided with a plurality of filtering holes. Negative pressure can be formed in an air exhaust area through the water pumping exhaust pipe, the gathering speed of underground water on one side is increased, and the underground water is pumped to the position above the ground through the water pumping exhaust pipe. The inflation area can increase the migration rate of underground water on the other side by pressurizing the underground water, and assists the water pumping area in discharging the underground water above the ground.

The invention relates to the technical field of coal mine safety production, and discloses coal mine gas control gas automatic discharge integrated rapid measurement equipment. The equipment comprises a detecting and discharging mechanism arranged on one side of the top of a coal mine shaft and a water filtering basket arranged at the bottom of the shaft, gas discharging and shaft accumulated water treatment are uniformly constructed in the same system level, and cooperative treatment of gas and liquid in the shaft is achieved. The detecting and discharging mechanism is used for detecting the concentration of gas above the shaft in real time and controlling the opening of a discharging channel when needed; the water filtering basket is used for receiving accumulated water at the bottom of the shaft and cooperating with drainage operation. The system can be automatically switched between an air exhaust working condition and a water pumping working condition according to the gas concentration change and the water accumulation state in a well, so that the problems of complicated structure and poor coordination caused by separated arrangement of a gas discharge system and a drainage system in the prior art are solved; and the integrality, the response timeliness and the operation reliability of coal mine shaft environment management are improved.

The utility model relates to the technical field of car washing machines, in particular to a steam generating device of a steam car washing machine. The preheating structure is provided with a steam generating structure for evaporating hot water into steam; the preheating structure comprises a thermal insulation box, and a heating water tank used for preheating a water source is installed in the thermal insulation box. According to the utility model, the preheating structure effectively reduces the cooling effect of the cold water source on the combustion chamber in the steam generation process by preheating the water source for steam generation, so that the risk of cracks caused by thermal expansion and cold contraction is reduced. A water source is supplied to the water inlet pipe by the external water pump, then enters the heating water tank, is heated by the water heater, is pumped by the pump body after being heated, and is transferred to the atomizing water pipe through the water pumping pipe and the water supply pipe in a pressurizing manner. And the atomized water pipe sprays preheated water mist in the steam heating box, so that the cooling effect caused by cold water in the steam heating box is effectively reduced.

The application provides a control system and method for medium-pressure steam admission in a gas-steam combined cycle unit, comprising a medium-pressure water extraction pump, a superheater, a medium-pressure bypass regulating valve, a condenser, a medium-pressure steam regulating valve, a reheater and a steam turbine, the medium-pressure water extraction pump is connected with the superheater through a pipeline, the water outlet of the superheater is connected with the condenser and the medium-pressure cylinder of the steam turbine through pipelines, the medium-pressure bypass regulating valve is arranged on the pipeline corresponding to the condenser, the medium-pressure steam regulating valve is arranged on the pipeline corresponding to the steam turbine, and the reheater is arranged between the medium-pressure steam regulating valve and the steam turbine. The control system and method for medium-pressure steam admission in the gas-steam combined cycle unit can maintain the medium-pressure drum liquid level in a safe liquid level range through the medium-pressure feedwater regulating valve, realize automatic control during medium-pressure steam admission through the opening and closing of the medium-pressure steam regulating valve and the medium-pressure bypass regulating valve, and reduce misoperation.

The utility model discloses a wet flue gas indirect condensation water lifting heat exchanger which comprises a heat exchange shell (1), the heat exchange shell (1) is provided with pattern plates (2), a heat exchange element (3), an axial flow fan (4) and a drainage groove (5) which are matched with one another, the pattern plates (2) are connected to the flue gas inlet and outlet ends of the heat exchange shell (1), the axial flow fan (4) is connected to the top of the heat exchange shell (1), and the axial flow fan (4) is arranged between the pattern plates (2) on the two sides; the heat exchange element (3) comprises a set of heat exchange pipes (31), the interior of each heat exchange pipe (31) is connected with a spiral guide vane (32), and the exterior of each heat exchange pipe (31) is connected with a set of fins (33). The utility model has the advantages of reducing the running power consumption of per ton of water in the project, reducing the investment of per ton of water in the running period and improving the water-saving effect.

The invention discloses a sand dune zone moisture extraction and separation device which comprises a supporting assembly, an extraction and separation assembly and a press-in assembly. The supporting assembly comprises a base and supporting legs; the separating and extracting assembly comprises a collecting pipe arranged in the guide hole, a separating sleeve clamped in the collecting pipe and an extracting pump arranged at the top end of the collecting pipe; a filtering pressing plate is clamped at the top in the separation sleeve; a micro motor for providing power for the filtering pressing plate is arranged at the top end of the separation sleeve; the press-in assembly comprises a fixed disc arranged on the base, a movable pressing disc arranged outside the collecting pipe in a sleeving mode, a clamping block arranged in the movable pressing disc, a follow-up driving sleeve connected to the movable pressing disc in a clamped mode and a driving component arranged on the upper end face of the fixed disc and capable of being connected with the follow-up driving sleeve. The device is reasonable in structural design, the collecting pipe can be pressed into sandy soil through the pressing-in assembly, the labor intensity of extracting soil water and underground water in a sand dune zone through manual excavation and well drilling is reduced, manpower is saved, and the extraction efficiency of the soil water and the underground water is improved.

Disclosed herein is an apparatus and method for providing a direct air capture (DAC) system of carbon dioxide to improve the energy efficiency, operability, and economic performance of DAC technologies based on multiple types of methods, including thermal swing adsorption (TSA), pressure swing adsorption (PSA), and moisture swing adsorption (MSA). In particular, disclosed herein is a DAC apparatus comprising a first water extraction unit, a process unit comprising a second water extraction unit, a carbon dioxide capture unit, and a water release unit. The present invention also provides a logic control system for a preconditioner of the proposed DAC apparatus, comprising a controller and one or more control elements in communication with a fluid stream, wherein the controller is configured to adjust the temperature, water content, or a combination thereof of the second fluid stream, the third fluid stream, or both to a predetermined range based on the cost of capturing carbon dioxide on a net removal basis.

A geothermal device and method for reconstruction of abandoned oil and gas wells. The geothermal device comprises a heat exchanger arranged at the wellhead of an abandoned oil and gas well and an unpowered heat extractor located inside the abandoned oil-gas well, wherein the unpowered heat extractor comprises a thermal insulation member and an evaporation member; the heat exchanger, the thermal insulation member and the evaporation member are sequentially in communication with each other from top to bottom; a liquid working medium is injected into the unpowered heat extractor, absorbs heat from a crude oil layer and evaporates into a gaseous working medium; the gaseous working medium is sequentially transported through the evaporation member and the thermal insulation member to the heat exchanger, condenses in the heat exchanger to release heat and turns into the liquid working medium; and the liquid working medium flows back to the bottom of the abandoned oil and gas well under the action of gravity. The present invention achieves true "heat extraction without water extraction", and does not require a water pump during operation, thereby reducing operation costs.

The utility model discloses an automatic cleaning water pumping device of a chopping and mixing machine for sausage processing, which belongs to the technical field of chopping and mixing machines and comprises a mounting base and a placing basin rotatably arranged on the mounting base, a mounting frame and a water pump are fixedly arranged on the mounting base, a rotating motor is fixedly arranged on the mounting frame, and a water pump is fixedly arranged on the water pump. A mounting plate is fixedly arranged on an output shaft of the rotating motor, a water collecting cover is fixedly arranged on the mounting plate, a water pipe is connected between the water collecting cover and the water suction pump, the water collecting cover comprises a connecting part, a water collecting part and a guiding part, a containing cavity is formed in the water collecting part, a plurality of guiding grooves are formed in the guiding part, and the connecting part is fixedly connected with the water collecting part. The multiple guide grooves are connected with the containing cavity. The connecting part is fixedly arranged on the mounting plate, the water pipe is connected to the connecting part, the water collecting part is fixedly arranged on the connecting part, and the guiding part is fixedly arranged on the water collecting part.