98results about How to "Improve water extraction efficiency" patented technology

The multifunctional water pumping aerator as one efficient water mixing and aerating apparatus consists of central ascending tube, aerating chamber, air chamber and air releasing pipe. The central ascending tube is one circular tube capable of regulating length automatically based on water level, and its lower part constitutes aerating chamber and air chamber together with a large outside pipe. Via the perforated air releasing pipe installed in the inlet of the aerating chamber, compressed air is filled to the aerating chamber and filled air forms the large rising bubbles in the central ascending tube to drive the upward water flow in the central ascending tube. The multifunctional water pumping aerator is installed floated in water and anchored with bottom anchoring pier, and may be set in reservoir to inhibit the growth of algae, improve bottom ecological environment and inhibit the dissolving and diffusion of phosphorus, ammonia nitrogen, etc. in water.

The invention discloses a device capable of obtaining water from the air. The device comprises a solar air heat collector, a solar photovoltaic power generation unit, a compression refrigeration unit and a reel dehumidification unit, wherein the solar air heat collector is used as a heat resource for the reel dehumidification unit; the solar photovoltaic power generation unit provides a required power supply to the reel dehumidification unit and the compression refrigeration unit; the compression refrigeration unit is used for compressing and refrigerating; and the reel dehumidification unit is used for eliminating moisture. The device capable of obtaining water from the air utilizes the solar energy as the energy for obtaining water from the air, so that fossil fuel does not need to be carried in the process of obtaining the water from the air, and the energy consumption for obtaining the water from the air is reduced. Meanwhile, compared with a refrigeration and moisture condensation method, the device can normally obtain water when the air humidity is relatively low, water can be continuously fetched, and the water fetching efficiency is improved.

The invention relates to a water collecting apparatus through solar energy semi-conductor refrigeration moisture condensation method, which comprises a heat regenerator, a heat insulation layer, a water condensation chamber, a water collection device, a water discharge valve, a radiating fin, a draught fan, a two-dimensional turntable, a solar cell panel, a cold plate, a thermoelectric stock, a temperature and humidity transducer and a single chip system, wherein the battery plate is fixed on the turntable, a plate regenerator is arranged to increase the water collection ratio, the solar cellpanel is used for current supply for semi-conductor refrigeration, the natural air is driven by the draught fan to flow through the cold plate continuously, aqueous vapor in the air is condensed intowater drops, and flows into the water collector through the water condensing chamber, thus realizing refrigeration, cooling, condensation of moisture and water collection. The advantages of the invention are small volume, light weight, high water collection efficiency and convenience in carrying.

The invention relates to a polymer microporous membrane. The polymer microporous membrane comprises a first surface and a second surface which have different functions, wherein the first surface is aphoto-thermal conversion surface, and the second surface is hydrophobic self-floating surface. The polymer microporous membrane integrates the functions of self-floatation, thermal insulation and water absorption, the length of a water absorption channel in a photo-thermal evaporation process can be further reduced, the water absorption efficiency is improved, the salting out phenomenon in the evaporation process is inhibited, the thermal conduction is reduced, the loss of heat energy in the process is reduced, the utilization rate of sunshine is increased, and the evaporation efficiency is improved. Besides, the polymer microporous membrane is prepared by virtue of the methods of surface induced crystallization, hydrophilic polymer surface permeation and template printing, the polymer microporous membrane with hydrophilic first surfaces with different thickness can be obtained, the immersion depth of the polymer microporous membrane during the self-floatation on the water surface is realized, and the applicability of the polymer microporous membrane is broadened.

The invention discloses an open type water pump. The open type water pump comprises an upper housing, a lower housing and an impeller; the impeller comprises a shaft which is positioned in the center, and a plurality of axially-extended blades which are circumferentially and uniformly distributed on the circumferential surface of the shaft; the blade is axially divided into an upper section and a lower section which are interconnected; an upper storing cavity for storing the upper section of the blade is formed in the upper housing; a lower storing cavity for storing the lower section of the blade is formed in the lower housing. The open type water pump is characterized in that the upper housing and the lower housing synchronously rotate; a bottom ring for mounting and positioning the lower housing is arranged below the lower housing. The invention also discloses a water tank type cleaner using the open type water pump.

The air water-taking equipment cotnrolled by computer comprises an air collision device, an electroheating pipe, a main machine, a water storage tank, a control box, an accumulator and a solar electric plate. Under the condition of environmental temp. of -25 deg.C -65 deg.C and humidity of 15 deg.C-100 deg.C said air water-taking equipment can implement water-taking function independently throughthe cold and hot air exchange to obtain maximum water-taking quantity from the air. Said equipment can be controlled by computer program, can implement full-autoamtic operation and can fully utilize solar energy.

A continuous solar-energy air water-taking device which can be moved relates to the field of air water-taking, wherein a solar-energy battery board supplies electricity to an accumulator which supplies power to a fan blower and a freezing draught fan, the fan blower directly extracts air and blows the air into a wind pipe, air flow flows through a heat-collecting pipe and is heated, heat air flows through an air-cooled muscle sheet condensator, and water which is condensed automatically flows into a water-collecting tank under the effect of the gravity, a first water-taking is finished. Finally, air is discharged outside form an air outlet of an adsorption tank, the adsorption tank absorbs water vapor which is not condensed after the first water water-taking, the adsorption tank is exchanged with an adsorption tank in an attached cover after fully absorbing water, and the adsorption tank is heated to realize desorption, the water which is desorbed flows into the water-collecting tank, and the second water-taking is finished, and the process is conducted repeatedly. On one hand the invention can be used to reflect sunshine which is not absorbed by the solar-energy vacuum heat-collecting pipe, and further reflects the sunshine to the solar-energy vacuum heat-collecting pipe, on the other hand the invention can convert light energy into electric energy, and supplies power to the entire device, and realizes cleaning production and utilization of energy source.

The invention relates to a static pressure layering water intaking system which comprises a plurality of sections of water pumping pipes which are connected together; the lower ends of the water pumping pipes are connected with a water intaking device; the upper ports of the water pumping pipes are sealed by sealing pieces; the upper part of each water pumping pipe is provided with a water pumping device one end of which extends into the water pumping pipe after passing through the sealing piece. By using the sealed steel pipe, the preset water intaking depth can be reached at one time, and multilayer water intaking at different depth at a planar water intake position can be realized continually. The influences generated by being contacted with air and the human pollution on the obtained water sample can be avoided, so as to ensure the quality of the water sample, and the veracity of physics and chemical assaying for the water sample. The system of the invention is characterized in that the operation is convenient, the water intaking efficiency is high, the quality of the water sample is high, the cost is low and the water proof effect is good.

The invention discloses a circulating adsorption refrigeration complementary solar air water-taking device. The circulating adsorption refrigeration complementary solar air water-taking device comprises a solar cell panel and further comprises a water taking device box body, wherein the water taking device box body is divided into a water production chamber, an energy storage chamber and a water storage chamber, the energy storage chamber and the water storage chamber are arranged below the water production chamber, an energy storage device is arranged in the energy storage chamber, a controller is installed on the energy storage device, the water production chamber comprises an adsorption chamber and a condensation chamber, a cold conduction aluminum plate is installed at the left end of the condensation chamber, a cold conduction aluminum net is connected to the cold conduction aluminum plate, the cold conduction aluminum plate is attached to a semiconductor chilling plate arranged on the outer wall of the condensation chamber, the other face of the semiconductor chilling plate is attached to a heat conduction copper plate, the bottom end of the condensation chamber communicates with a water conduction thick hose, and the bottom end of the water guide thick hose communicates with a water collector; and the working steps of the water taking device comprise the gas suction, the adsorption process and desorption and a condensation process. The circulating adsorption refrigeration complementary solar air water-taking device has the advantages of being high in water taking efficiency, energy-saving, environment-friendly, portable and the like, and precious drinking water resources can be obtained in areas deficient in fresh water such as deserts, deserts and islands.

The invention discloses a water discharging temperature control method based on brewing object recognition. The method comprises the steps of collecting an image of a to-be-brewed object; determininga target brewing object matched with the image of the to-be-brewed object from a preset brewing object database; obtaining water discharging temperature control information corresponding to the targetbrewing object, wherein the water discharging temperature control information is used for controlling the water discharging temperature of a water dispenser; controlling the water dispenser to discharge water according to the water discharging temperature control information. In this way, the to-be-brewed object in a water cup of a water-collecting user is automatically recognized, through the water discharging temperature corresponding to the to-be-brewed object, after outflow water in the water dispenser is heated or refrigerated, the water dispenser is controlled to discharge water which reaches the water discharging temperature, thus the user conveniently uses the water dispenser, the water collecting efficiency of the user is improved, and the user experience is improved.

The invention relates to an interactive adsorption solar energy and wind energy air water taking device. Three adsorption bed units are driven to interactively perform continuous cycle operation of heat supply, desorption, condensation and water storage, and cooling and adsorption according to a program through heat source water converted from solar energy and wind energy complementary sources and matched cooling water, and a singlechip industrial control unit controls to intelligently operate the whole machine system and start or stop equipment according to the compiled program and a temperature and humidity data command of a characteristic point acquired in real time; and solar energy and wind energy are complementary to provide more natural clean energy for the operation of the air water taking device, a small solar panel power supply device provides electric power for an electric control component, the whole machine is not required to be powered by a power grid or a fuel engine, and zero carbon emission is basically realized. Through the technical scheme, the efficiency of taking water from air by using renewable energy can be greatly improved, and more water can be taken fromthe air. The whole machine system is integrated by inserting modular components, and is convenient to install and maintain on site, and a standardized approved product can be quickly formed to enter the market.

The invention discloses a microfluidic air water taking device and a water taking method employing the water taking device, belongs to the fields of air water taking and microfluidic control and application, and in particular relates to a miniature water taking device for collecting drinking water, so as to solve the problem that the conventional water taking device is low in water taking efficiency. A one-way valve is arranged at an air inlet of an air inlet flow channel; an air outlet of the air inlet flow channel is communicated with an air inlet of a moisture absorption cavity; moisture absorption materials are filled with the moisture absorption cavity; a heating device is used for heating the moisture absorption cavity; an air outlet of the moisture absorption cavity is communicated with an air inlet of a condensing flow channel; the one-way valve is used for controlling air to enter the air inlet flow channel; an electric control unit comprises a temperature sensor, a temperature control circuit, a heating device and a timed control circuit; the temperature sensor is arranged in the moisture absorption cavity and is used for measuring the temperature in the moisture absorption cavity; and the temperature acquisition signal output end of the temperature sensor is connected with the temperature acquisition signal output end of the temperature control circuit. The miniature water taking device is suitable for air water taking.

A continuous solar-energy air water-taking device which can be moved relates to the field of air water-taking, wherein a solar-energy battery board supplies electricity to an accumulator which supplies power to a fan blower and a freezing draught fan, the fan blower directly extracts air and blows the air into a wind pipe, air flow flows through a heat-collecting pipe and is heated, heat air flows through an air-cooled muscle sheet condensator, and water which is condensed automatically flows into a water-collecting tank under the effect of the gravity, a first water-taking is finished. Finally, air is discharged outside form an air outlet of an adsorption tank, the adsorption tank absorbs water vapor which is not condensed after the first water water-taking, the adsorption tank is exchanged with an adsorption tank in an attached cover after fully absorbing water, and the adsorption tank is heated to realize desorption, the water which is desorbed flows into the water-collecting tank, and the second water-taking is finished, and the process is conducted repeatedly. On one hand the invention can be used to reflect sunshine which is not absorbed by the solar-energy vacuum heat-collecting pipe, and further reflects the sunshine to the solar-energy vacuum heat-collecting pipe, on the other hand the invention can convert light energy into electric energy, and supplies power to the entire device, and realizes cleaning production and utilization of energy source.

The invention provides a solar air adsorption desert water fetching travel bag which comprises a water fetching device and a bag body, wherein the water fetching device is connected with the bag body. The solar air adsorption desert water fetching travel bag further comprises an adsorption bed, a condensation chamber and a water storage device, wherein the adsorption bed is connected with the condensation chamber; the water storage device is connected to the bottom of the condensation chamber; and the condensation chamber is connected with the bag body. The adsorption bed comprises a light-transmitting acrylic plate cover, a solar absorption plate, a foam plastic plate, an adsorbent and a stainless steel wire; the condensation chamber comprises a hollow plastic plate, an aluminum plate and a condensing agent bag; the light-transmitting acrylic plate cover, the solar absorption plate, the foam plastic plate and the stainless steel wire are in close connection sequentially from top to bottom; the adsorbent is filled in a closed space formed by the light-transmitting acrylic plate cover, the foam plastic plate and the stainless steel wire; the hollow plastic plate is connected with the light-transmitting acrylic plate cover and the bag body respectively; and the aluminum plate and the condensing agent bag are sequentially arranged between the hollow plastic plate and the bag body. The solar air adsorption desert water fetching travel bag provided by the invention is convenient to carry and low in cost, and has the advantages of high water fetching efficiency and simple structure.

The invention provides an intelligent drinking water system. The intelligent drinking water system comprises a water dispenser, a user side and a label. The water dispenser comprises a water outlet unit, a wireless identification unit, a processing unit and a control panel. The user side is in communication connection with the processing unit through a wireless network, the user side sends personalized setting information to the processing unit through the wireless network, and the personalized setting information comprises one or more default temperatures. The label is arranged on a containerand contains identity data corresponding to the personalized setting information. According to the intelligent drinking water system, users can conduct personalized setting, the water dispenser can provide the different default water outlet temperatures according to the different users so as to improve the water taking efficiency and obtain the correct water temperature, in addition, the water taking amount and the water taking frequency of the users can be effectively controlled so as to control the water drinking amount of all the users, and accordingly, the health is promoted.

The invention discloses a field fixed-depth rapid water taking method which comprises the steps of: S1, preparing a portable water taking device; S2, before taking water, inflating an airbag rubber plug through an inflation inlet so as to enable the airbag rubber plug to be pressed against a rubber water check, and keeping an inner cavity of a water taker body in an empty cavity state; S3, holdingon to a measurement rope, paying off the portable water taking device, and when the portable water taking device reaches a specified depth, pulling a pulling rope to deflate the airbag rubber plug, so that water at the specified depth rapidly inflows from a top water inlet and slowly inflows from a bottom water inlet, and enabling the water taker body to be continuously sunken; and S4, when the inner cavity of the water taker body is full filled with the water, blocking the bottom water inlet of the water taker body by a second cone of a lower blocking part, and blocking the top water inlet of the water taker body by an upper blocking part. An operator actively controls water intake of the device and adopts underground water at the specified depth; after water taking is completed, the water inlets and outlets are automatically blocked so as to ensure water taking quality and water taking efficiency at the specified depth; and the field fixed-depth rapid water taking method adopts manual control, does not adopt power and is particularly suitable for field water taking carrying.

The invention discloses a dual-working-condition electromagnetic valve for a water dispenser. The dual-working-condition electromagnetic valve for the water dispenser comprises a valve body which is provided with a water inlet and a water outlet, a first valve port and a second valve port are arranged in the valve body, a fixed iron core assembly is assembled on the upper portion of the valve body and composed of a sleeve and a fixed iron core, a hole is vertically formed in the center of the sleeve, the fixed iron core is fixed to the upper end of the sleeve, a movable iron core assembly is arranged in the sleeve, a central hole is vertically formed in the upper portion of the movable iron core assembly, a spring is assembled in the central hole, the lower end of the movable iron core assembly is matched with the first valve port, and a magnet exciting coil is arranged outside the fixed iron core assembly; a gland is assembled on the lower portion of the valve body, a hand-operated adjusting rod capable of moving vertically is arranged at the center of the gland, and the upper end of the hand-operated adjusting rod is matched with the second valve port. The dual-working-condition electromagnetic valve for the water dispenser has the advantages that the structure is simple, use is convenient, and users can choose to open the valve ports according to the number of consumers and needed water flow, so different requirements are met.

The invention discloses an air-pressure pumping-out long-distance water transmission system and a potential energy generating system. The air-pressure pumping-out long-distance water transmission system comprises a high-position water tower which is close to a water source, a water lifting device and a power supply device for supplying energy to the water lifting device; the water lifting device is used for lifting water in the water source to the high-position water tower; and the water source flows to a user side from the high-position water tower. With the adoption of the air-pressure pumping-out long-distance water transmission system provided by the invention, the water is lifted up by the low-level water source at a low air pressure in a high potential energy manner, so that the water source can be transmitted in a long distance.

The invention discloses a rough surface profiled fiber and a preparation method and application thereof. The preparation method of the rough surface profiled fiber comprises the following steps of spinning yarns through a profiled spinneret to obtain initial fiber products; performing corrosion treatment on the obtained initial fiber products; performing washing and drying processes to obtain finished fiber products, namely, rough surface profiled fiber, wherein the process of spinning the yarns through the profiled spinneret produces the initial fiber products with the radial cross section in a star shape, then the initial fiber products are corroded, and a number of corrosive pits are formed in the surface of the obtained finished fiber products, namely, the surface obtains certain roughness to further improve condensate performance. The profiled fiber with the corrosive pits in the surface is made of polar polymers, thereby having high water absorbency, the star-shaped structure provides sliding channels for collected water, and meanwhile, the surface roughness can further improve the condensate performance of the fiber.

The invention discloses an open type water pump. The open type water pump comprises an upper housing, a lower housing and an impeller; the impeller comprises a shaft which is positioned in the center, and a plurality of axially-extended blades which are circumferentially and uniformly distributed on the circumferential surface of the shaft; the blade is axially divided into an upper section and a lower section which are interconnected; an upper storing cavity for storing the upper section of the blade is formed in the upper housing; a lower storing cavity for storing the lower section of the blade is formed in the lower housing. The open type water pump is characterized in that the upper housing and the lower housing synchronously rotate; a bottom ring for mounting and positioning the lower housing is arranged below the lower housing. The invention also discloses a water tank type cleaner using the open type water pump.

The invention discloses an air-to-water machine. The air-to-water machine comprises a dehumidifying runner and a steam compression and refrigeration system, wherein an air inlet of an evaporator of the steam compression and refrigeration system is communicated with a regenerated air outlet of the dehumidifying runner; an air outlet of a condenser of the steam compression and refrigeration system is communicated with a regenerated air inlet of the dehumidifying runner; the air-to-water machine further comprises a first heat exchanger; a high-temperature air outlet of the first heat exchanger is communicated with a moisture absorption region air inlet of the dehumidifying runner; a high-temperature air inlet of the first heat exchanger is communicated with outdoor air; a low-temperature air inlet of the first heat exchanger is communicated with an air outlet of the evaporator. With the adoption of the evaporator, the water taking efficiency is always very high even in a high-temperature and low-humidity environment.

The invention provides a drill bit device integrating underground water rapid getting and in-situ injection repairing functions, and relates to the field of environment repair. The drill bit device integrating the underground water rapid getting and in-situ injection repairing functions comprises a drill bit, an injection head and a casing pipe, the drill bit is fixedly mounted on the bottom of the injection head, an injection cavity is formed in the injection head, multiple injection holes are formed in the outer wall of the injection cavity, a limiting device is mounted between the injectionhead and the casing pipe, and a small connection head is mounted on the top of the casing pipe, and is of a middle through structure. The device has the beneficial effects that low-disturbance underground water rapid getting can be carried out on various stratums (including a fine sand layer), meanwhile, the drill bit can be used for carrying out fixed-depth direct pushing type in-situ injection,and according to stratum and pollutant distribution characteristics, the injection depth can be flexibly adjusted.

The invention relates to a method for purifying a super great amount of water, which comprises the following steps: step I, the target water is selected; step II, the reference water depth(D1) is determined; when the actual depth of the target water is 10-50 meters, the reference water depth is the actual depth; when the target water depth is more than 50 meters, the reference water depth(D1) is 50 meters; step III, a purifying device, an air water-raising tunnel, is arranged in the target waters, and the tunnel body length (L1) of the air water-raising tunnel is 30 percent-50 percent of the reference water depth(D1) of the target water; the submerged depth of the tunnel mouth (D2) of the air water-raising tunnel is 40 percent-60 percent of the tunnel body length (D1); step IV, the air is input into a pressure chamber of the air water-raising tunnel and the air pressure(P1) of an air compressor is 150 percent-200 percent of water pressure in the pressure chamber. The invention can realize convection of an upper water layer and a lower water layer as well as realize the whole circulation, thus effectively facilitating dissolved oxygen quantity in the whole waters, damaging suspension state of algae and inhibiting the growth of the algae so as to purify the water.

The invention relates to the technical field of air water taking equipment, and discloses a linked double-effect condensing air water taking device. The linked double-effect condensing air water taking device comprises blades, a generator set, an air supply assembly, a heat pump unit and a condensing tube, wherein the heat pump unit includes a coiled tube containing a refrigerant inside; the coiled tube is placed in the condensing tube; the blades are fixedly connected on a low-speed rotating shaft of the generator set, and the blades drive the low-speed rotating shaft of the generator set torotate under the action of wind power so as to enable the generator set to generate electric energy; the generator set is electrically connected with the heat pump unit so as to drive the heat pump unit to refrigerate in a cyclic manner and enable the refrigerant in the coiled tube to provide refrigeration; and the refrigeration provided by the refrigerant in the coiled tube and the refrigerationgenerated by the temperature difference between the soil and the air enable the water vapor in the air to be condensed into water. The linked double-effect condensing air water taking device can realize the linkage of device air supply, wind power generation and heat pump cyclic refrigeration and double-effect condensation of the natural low-temperature soil and the heat pump circulation, so thatthe energy utilization efficiency and the air water taking efficiency are greatly improved.

The invention discloses a light-heat-electricity driven efficient air water taking device coupled with meteorological environment prediction, and belongs to the technical field of air water taking. The light-heat-electricity driven efficient air water taking device comprises an adsorbent bed, a condenser, an optical assembly, a photovoltaic power generation device, a compressor, a solar heat collector, a detector, a purification device for non-condensable gas, a microprocessor, a power regulator, a control mechanism and a temperature and humidity sensor. The optical assembly provides electricenergy for the compressor in a light condensation and light splitting mode for condensation by the condenser. The optical assembly is used for absorbing solar energy, and non-condensable gas in watervapor generated through desorption is rapidly purified and conducted water-taking through the detector and the purification device. The temperature and humidity sensor and the control mechanism can control the temperature and humidity of air in the light-heat-electricity driven efficient air water taking device. According to the light-heat-electricity driven efficient air water taking device withthe meteorological environment prediction, the whole device is combined with the meteorological environment, the solar heat collection efficiency is met, photoelectric conversion is achieved, and theproblem of water vapor condensation of the non-condensable gas is solved.

The invention relates to the technical field of water taking tools for pressurized water wells, and discloses a composite novel water taking device for a water well. The device comprises a cylinder pipe, a water pumping pipe, a check valve and a control rod, a movable pipe body capable of moving up and down is arranged in an inner cavity of the cylinder pipe, up-down movement of the movable pipe body is controlled by the control rod, a sealing air bag is arranged on the outer surface of the movable pipe body, and the outer side of the sealing air bag bulges up in the upward moving process of the movable pipe body and is in fit with the inner wall of the cylinder pipe. According to the composite novel water taking device for the water well, a piston is replaced by the movable pipe body andthe sealing air bag, when the movable pipe body moves upwards to take water, the sealing air bag bulges up to be in fit with the inner wall of the cylinder pipe, water or air above and below the movable pipe body in the inner cavity of the cylinder pipe is separated, the water above the movable pipe body is taken out, meanwhile, the volume of vacuumizing below the movable pipe body in the inner cavity of the cylinder pipe is kept unchanged, and the accuracy of each water pumping amount is ensured. The water taking efficiency is effectively improved compared with existing products.

The invention discloses a driveless air water intake device. The device comprises an air inlet device, a condensation sleeve and a water collecting tank which are sequentially connected from top to bottom, the condensation sleeve comprises a spiral tube, an exhaust pipe placed inside the spiral tube, a sealing condensation layer wrapped around the tube wall of the exhaust pipe and a plurality of air outlets formed in the tube wall of the spiral tube; the upper end of the spiral tube is connected to the air inlet device, and the lower end is connected to the water collecting tank; the lower endof the exhaust pipe is in communication with the spiral tube, the upper end of the exhaust pipe is sealed in a tapered structure with a tip end upward, the upper end of the exhaust pipe is provided with a plurality of exhaust branch pipes extending outward from the pipe walls and gradually expanding, and the plurality of exhaust branch pipes are correspondingly connected to the plurality of air outlets one by one; the air outlets are of triangular structures, and one tip end of a triangle is upward. The device can effectively reduce the air resistance, thereby reducing the pressure drop, increase the air intake amount, and improve the efficiency of taking water from the air.

The invention provides a desert moisture acquisition device. The desert moisture acquisition device comprises a moisture acquisition device body and a condensing device. The water acquisition device body comprises a cylinder, a heater and an air exhauster. A constant pressure valve is arranged on the side face of the cylinder, an inner cavity of the cylinder is communicated with external air through the constant pressure valve, an acquisition opening is formed in the lower end of the cylinder, a partition net is arranged in the portion, close to the acquisition opening, of the inner cavity of the cylinder, the heater and the air exhauster are located at the upper end of the cylinder, an air inlet of the air exhauster is communicated with the inner cavity of the cylinder, an air outlet of the air exhauster is communicated with an air inlet of the condensing device, and a water outlet and an exhaust port are formed in the condensing device. The desert moisture acquisition device has the following advantages that moisture in sand is evaporated in negative pressure environments, moisture evaporation can be quickened, follow-up condensing efficiency is higher, water outflow is quicker, and water intake efficiency is obviously improved; the desert moisture acquisition device is compact in structure, convenient to use, free of influences of surrounding environments, capable of being used in multiple environments and high in universality.

The invention discloses an underwater multi-dimensional automatic water sample collecting device. The underwater multi-dimensional automatic water sample collecting device comprises a water sample collector, a three-way valve, a water storage device and a controller; the water sample collector comprises a sampling tube; the sampling tube comprises an outer tube and an inner tube; the inner tube isconnected with the side wall of the outer tube; the inner tube is a hose; a through hole is formed in the side wall of the outer tube; the water storage device comprises a sampling bottle pull rod, asampling bottle and a sampling beaker; the sampling bottle pull rod is connected with at least two sampling bottles; the sampling bottles adopts a volumetric variable type and are connected with theinner tube; the sampling bottles change the internal capacity under the motion of the sampling bottle pull rod; the sampling bottles collect water samples through the inner tube or collect water samples through the sampling beaker, and the water samples with three dimensions can be collected simultaneously, so that multi-dimensional sampling is realized and the effectiveness and the representativeness of sampling are greatly improved; and the process technology is simple and convenient to operate.