743 results about "Liquid water" patented technology

The utility model discloses a backflow type icing wind tunnel capable of simulating a sand-containing ice crystal-containing environment, which belongs to the technical field of wind tunnels and comprises a wind tunnel body, a liquid particulate matter injection system, a solid particulate matter injection system, a phase change particulate matter injection system, a temperature control system, a pressure control system and a plurality of power systems. The wind tunnel body is sequentially provided with a stable section, a contraction section, a test section, a first expansion section and a second expansion section, and the liquid particulate matter injection system and the solid particulate matter injection system are both installed on the stable section. According to the backflow type icing wind tunnel capable of simulating the sand-containing and ice-crystal-containing environment, the content of sand and dust, the content of ice crystals and the content of liquid water in the wind tunnel body can be adjusted, and the temperature in the wind tunnel body can be adjusted, so that more complex weather can be simulated in the wind tunnel body, the accuracy of experimental data is ensured, and the experimental efficiency is improved. Therefore, the reliability and the safety of the aircraft in an extreme environment are improved, and the test efficiency is improved.

The invention discloses a wafer bonding method, which comprises the following steps of: 1, providing a first wafer and a second wafer, the surface of the first wafer being provided with a microstructure with a high aspect ratio; step 2, cleaning the first wafer and the second wafer; step 3, performing vacuum drying treatment on the first wafer and the second wafer, wherein the vacuum pressure is controlled to be 0.1-10 Torr in the vacuum drying treatment process; step 4, carrying out pre-bonding on the first wafer and the second wafer to form a bonding body; and step 5, carrying out annealing treatment on the bonding body. Aiming at the problem of residual water in the pre-cleaning process in the bonding process of the micro-structure wafer with a high aspect ratio, the wafer is placed in a controllable vacuum environment, phase change boiling of liquid water under the condition of no heat input is realized, and the problem of high-temperature heat damage caused by an existing heating and baking method is effectively avoided.

An ice maker appliance includes a mold body comprising a mold cavity, a fill tube, and a dosing pump. Methods of operating the ice maker appliance may include receiving a user input. A volume of liquid water and / or a volume of additive may be determined based on the user input. Methods may further include flowing the liquid water and the additive to the mold cavity. The liquid water and the additive form a mixture, and the mixture is retained in the mold cavity to form at least a portion of an ice piece.

The invention belongs to the technical field of cable branch boxes, and discloses a moistureproof dehumidification branch box used in the field, which comprises a box body, a waterproof platform is fixedly connected to the bottom of the box body, a box door is hinged to the side wall of the box body, mounting frames are fixedly connected to the inner cavity of the box body in the transverse direction and the vertical direction, a canopy is arranged above the box body, and the inner cavity of the box body is fixedly connected with the mounting frames in the transverse direction and the vertical direction. Through cooperation of structures such as a T-shaped pipe, a cross-shaped pipe and a gas collecting pipe, the freezing phenomenon is avoided, it is ensured that the dehumidification and heat dissipation functions are stable, a double-pipeline channel is arranged, the T-shaped pipe and the cross-shaped pipe form a heat path pipeline which is installed near an electrical element to suck hot air of one hand, and the gas collecting pipe and a second gas inlet which is obliquely arranged form a cold path pipeline, so that the heat dissipation function of the electrical element is improved. Air in the bottom area, with the highest humidity, of the box wall is sucked, the T-shaped pipe and the cross-shaped pipe are driven by field natural wind power to move up and down in a reciprocating mode, the cold air suction range and the hot air suction range are widened, finally condensation is generated in a concentrated mode, liquid water is discharged, and efficient dehumidification is achieved.

The invention discloses a fuel cell water and gas discharge control method, device and equipment and a readable storage medium, and the method comprises the steps: presetting a first calibration quantity and a second calibration quantity of periods and opening durations of a water discharge valve and a gas discharge valve, and enabling the second calibration quantity to have a shorter period and a longer water and gas discharge duration; when it is monitored that the idle running time of the fuel cell system exceeds the first threshold value, the control parameters of the drain valve and the exhaust valve are switched from the first calibration quantity to the second calibration quantity, and the control parameters are switched back to the first calibration quantity after the set time is continued, so that the working condition that the circulating gas flow is reduced under long-time idle running is adapted; liquid water and accumulated gas in the galvanic pile are effectively discharged by adjusting the period and duration of drainage and exhaust; the problems of liquid water gathering, circulating flow attenuation, local water logging of the electric pile, local film drying, unbalanced gas concentration and the like caused by traditional fixed parameter control during long-time idling operation can be avoided, the voltage consistency of the electric pile is guaranteed, and the fault that the voltage of a single piece is too low is reduced.

The invention relates to the technical field of fuel cells, in particular to a hydrogen feeding amount control method of a hydrogen cell water-gas separation device for an unmanned aerial vehicle, a cyclone separation cavity, a heat exchange condensation cavity and a hydrogen mixing cavity which are sequentially distributed from bottom to top are arranged in a separation shell, and a structure combining multi-stage separation and heat exchange is adopted; the technical problem that a traditional gas-liquid separator cannot thoroughly remove micron-sized liquid drops and gaseous water vapor is solved, liquid water drops are efficiently removed through the cyclone separation cavity, new hydrogen and wet hydrogen are subjected to heat exchange through the heat exchange condensation cavity, residual water vapor is sufficiently condensed and separated out, and finally mixed hydrogen with the dryness meeting the requirement is output. When water in the water-gas separation device for the hydrogen battery is excessive, the opening degree of the first valve of the wet hydrogen inlet is reduced, and the opening degree of the second valve of the new hydrogen inlet is increased at the same time, so that the amount of water entering wet hydrogen in the gas-liquid separator is reduced, and formation of condensed accumulated water in the gas-liquid separator is inhibited.

The invention discloses an icing wind tunnel cloud spray nozzle design method, device and equipment and a medium, and the method comprises the steps: S1, preliminarily determining the layout of a spray rake and the number of spray nozzles according to the section size of the position of the spray rake in an icing wind tunnel; s2, according to existing super-cooled large water drop frozen hairy rain conditions, the cloud and mist requirements are determined; s3, according to the liquid water content LWC and the speed requirement of the wind tunnel test section, the nozzle water supply demand quantity and the single-nozzle water supply demand quantity are analyzed; s4, preliminarily designing a nozzle combination mode of the spraying system according to the water supply flow and the water supply parameters; s5, performing analog simulation of cloud-air bidirectional coupling heat transfer in the icing wind tunnel on the nozzle combination mode; and S6, analyzing a simulation result, evaluating whether the particle size requirement of the frozen hairy rain cloud is met, if so, completing the cloud nozzle design, and if not, returning to the step S4, optimizing the distance and combination of the nozzles, and carrying out iterative design. According to the method, the design iteration period is shortened, and the test cost is reduced.

The utility model belongs to the technical field of tire vulcanization equipment, and discloses a nitrogen heating system and tire vulcanization equipment. The nitrogen heating system can inject heated nitrogen into a capsule of the tire vulcanization equipment, so that the capsule is expanded, and the tire blank is attached to a cavity of a mold of the tire vulcanization equipment. According to the nitrogen heating system provided by the utility model, the temperature and the pressure in the vulcanization process can be independently adjusted according to the rubber crosslinking dynamics requirement and the tire blank fitting pressure requirement respectively, and the risk of over-vulcanization or under-vulcanization caused by passive change of the temperature when the pressure is adjusted in the traditional process is avoided. In addition, the defects of energy loss and local low temperature caused by the fact that steam is in contact with the surface of a low-temperature mold and condensed into liquid water in a traditional process are overcome, so that the vulcanization uniformity can be improved, and the defective rate is reduced.

The invention belongs to the technical field of meteorological early warning, and discloses a hail reduction forecasting and early warning method and system based on meteorological radar data in order to solve the problem that a traditional hail reduction early warning system is low in accuracy. Determining vertical accumulated liquid water between the adjacent target temperature layers, and calculating the content of supercooled water between the adjacent target temperature layers according to the vertical accumulated liquid water; then, according to the number of the aqueous product particle libraries and the content of the supercooled water, the interaction rate of the supercooled water and the aqueous product particles between the adjacent target temperature layers is determined; then, according to each interaction rate, a hail reduction index is calculated, and hail reduction early warning is carried out according to the hail reduction index; therefore, hail reduction early warning is carried out by analyzing the interaction between the supercooled water and the water particles in the hail violence process, the evolution dynamic state of the supercooled water and the water particles in the hail violence process is revealed, and on the basis, the accuracy of hail reduction early warning is improved.

The invention provides a building crack detection device and method, and belongs to the technical field of building crack detection. Comprising a left movable cover and a metal base, a right positioning base is fixedly installed at the top of the metal base, a bottom supporting strip is fixedly installed at the bottom of the left movable cover, clamping grooves are formed in the two sides of the front end of the bottom supporting strip and the two sides of the front end of the left movable cover, and a clamping frame is fixedly installed on the front end wall of the right positioning base. Mechanical structures such as the cleaning assembly, the drainage assembly and the driving motor are arranged to drive a brush to clean obstacles such as algae in a reciprocating mode, meanwhile, liquid water discharged by a turbine is used for flushing and washing falling objects, then the drainage assembly discharges the obstacles according to the Bernoulli principle, and a three-way valve can discharge water in a detection area after being connected with high-pressure gas. During detection, after the device is lowered, shelters are cleaned and impurities are discharged, the laser detector scans the width, the depth and the like of the crack, the problems of manual subjective operation, shelters and water interference are solved, and the detection precision and standardization are improved.

The embodiment of the invention provides a method and device for obtaining the humidity of fabric in a fabric treatment appliance, and the method comprises the following steps: during the drying operation period of the fabric treatment appliance, obtaining the humidity of the fabric; acquiring an air temperature parameter of the fabric treatment appliance related to air circulating in the fabric treatment appliance during the drying operation and a drainage characteristic parameter related to liquid water separated from the fabric in the fabric treatment appliance through the drying operation; a humidity of the fabric in the fabric treatment appliance is determined based at least on the air temperature parameter and the drainage characteristic parameter. The application also relates to a fabric treatment appliance and a computer program product. According to the method and the device, the real-time humidity of the fabric can be determined without being influenced by the accumulation form and humidity distribution of the fabric, so that the measurement accuracy of the humidity of the fabric is improved, and a humidity sensor with high cost and limited measurement conditions is prevented from being used; therefore, the technical purpose of accurately obtaining the humidity of the fabric in the fabric treatment appliance at low cost is achieved.

The application discloses an oil and gas field polymer solution viscosity protection system with improved ferrous ion tolerance, and belongs to the technical field of oil and gas field chemicals.The system comprises the following components in mass percentage: 5-10% of a ferrous ion stabilizer, 10-20% of a free radical capturing agent, 10-20% of a structure reinforcing agent, 5-10% of a synergist, and the balance of water; the ferrous ion stabilizer is at least one selected from sodium gluconate, potassium gluconate, diethylene triamine pentaacetic acid and hydroxyethylidene diphosphonic acid; the free radical capturing agent is a compound containing phenolic hydroxyl; the structure reinforcing agent is an imidazoline compound; and the synergist is an aldehyde compound.The application method of the viscosity protection system is as follows: the viscosity protection system is first added into liquid water, polymer powder is then added, a gel breaker is further added, and stirring is uniformly performed to obtain a polymer solution.The viscosity protection system significantly reduces the influence of ferrous ions on the viscosity of the polymer solution, and improves the application effect of polyacrylamide substances in the field of oil and gas fields.

The utility model discloses an end cover packaging and cleaning device which comprises a packaging frame, the packaging frame comprises a storage rack and a packaging cage for containing the storage rack, the storage rack is provided with a plurality of fixing rods, and one side of the packaging cage is provided with a lifting grabbing lug; the turnover device comprises a turnover base and a turnover base table rotationally connected with the turnover base, and a turnover driving device is arranged in the turnover base and the turnover base table in a penetrating mode; the functional cleaning tank comprises an ultrasonic cleaning tank, a first cold water tank, a second cold water tank, a hot water tank and an anti-rust liquid tank which are arranged in sequence; the lifting device is used for lifting the pallet from the turnover device to the functional cleaning tank; the electric vehicle end cover cleaning device can effectively solve the problem that an existing cleaning mode is poor in batch cleaning efficiency, and an efficient and feasible solution is provided for the electric vehicle end cover cleaning industry.

The present invention provides a method of producing hydrochloric acid, comprising reacting high-temperature gaseous chlorine and water vapour in a carbon-free reverse Deacon reaction (RDR) at a temperature of from about 450 to about 750 °Celsius to produce a mixture of gases comprising hydrogen chloride and oxygen. The chlorine is produced by fusing and electrolysing sodium or magnesium chloride in solid phase. The water vapour comes from thermally decomposing a hydroxide of at least one of calcium, magnesium and iron in the absence of oxygen to produce the water vapour without any admixture of oxygen (e.g., from atmospheric air). The mixture of gases produced by the RDR is immediately contacted with liquid water to dissolve the hydrogen chloride therein, thereby producing hydrochloric acid and a stream of tail gases. Heat is extracted from the hydrochloric acid to maintain its temperature substantially constant until the stream of tail gases is no longer in contact therewith. Thus the chlorine and water vapour are both supplied to the RDR at high purity and require little, if any, preheating. Heat extracted from contacting the mixture of gases with liquid water may be used to keep the RDR within its range of operating temperatures. Oxygen can be separated from the stream of tail gases, and the oxygen-depleted stream can be recycled back to the RDR to give a high percentage conversion of chlorine to hydrogen chloride. The RDR may be uncatalysed and kept within its operating temperature range by radio-frequency volumetric heating in at least one of the IEEE Ku-, K- and Ka-bands. The invention also provides a corresponding apparatus (1h) for producing hydrochloric acid, comprising an electrolytic cell (10) for the electrolysis, a gas-tight kiln (20) for the thermal decomposition, a gas-phase reactor (30) for the RDR, and an absorber (40) for dissolving the hydrogen chloride in the liquid water. The apparatus (1h) may further comprise a separator (80) for separating the stream of tail gases into the oxygen-depleted stream and a stream of oxygen, which may be fed to a steelmaking apparatus (90), for example. The liquid water for dissolving the hydrogen chloride can come from condensing water vapour obtained by drying an aqueous solution of sodium or magnesium chloride or of sodium hydroxide. The apparatus (1h) may therefore also comprise a dryer (60) for drying this aqueous solution, and a condenser (70) for condensing the water vapour thus obtained. Sodium chloride or magnesium chloride in solid phase derived from drying the aqueous solution may be recycled back to the electrolytic cell (10). Electricity for the electrolysis can come from a renewable resource. At least some of the heat for the thermal decomposition may come from the liquid metal which is a co-product of the electrolysis. The invention is therefore highly energy efficient and requires little, if any, extra energy, apart from the electricity required for the electrolysis. The invention also uses commonly available ingredients and produces no greenhouse gases.

The invention relates to an additive for improving refrigeration efficiency of liquid water and a production process thereof, and belongs to the technical field of water additives. The additive comprises 70-80 parts by weight of a carrier, 3-6 parts by weight of modified sophorolipid, 1-2 parts by weight of sodium polyacrylate and 0.5-1.5 parts by weight of sodium molybdate, the carrier is of a core-shell structure, the core of the carrier is nano-copper, and the shell of the carrier is hydrophilic mesoporous silica doped with carboxylated carbon nanotubes; according to the additive prepared by the invention, the refrigeration efficiency of water is improved through the interaction among the carrier, the surfactant and liquid water.

The application discloses a continuous system and method for converting low-value glyphosate by-products into high-value chemical products, comprising: pumping low-value glyphosate by-products and alkaline compounds into a constant-temperature conversion kettle for conversion and decomposition, and introducing nitrogen into the top of the constant-temperature conversion kettle to blow off and replace gaseous volatile products generated in the reaction; after gaseous products pass through a buffer tank to capture water vapor, the gaseous products enter a three-stage condenser to recover condensable components into a crude product receiving tank, and the non-condensable components are purified and impurities are removed by an acid absorption system and then utilized; liquid crude product is pumped into a low-temperature vacuum desolventizing kettle to realize separation of condensable components from liquid water, and then enters a two-stage condenser for deep dehydration and separation, and is recovered into a pure product receiving tank. The application realizes a new process for preparing high-purity N,N-diethylmethylamine, and forms a whole-process process system for converting low-value waste materials such as chloromethane, triethylamine and synthetic products thereof into high-value chemical products such as N,N-diethylmethylamine and ethylene.

To obtain anhydrous gypsum with minimal coloring while reducing carbon dioxide emissions from discarded gypsum products.SOLUTION: A method comprises a step of stirring substances originating from gypsum products together with liquid water at temperatures of 205°C or higher.SELECTED DRAWING: Figure 2

The invention discloses an Avgamdeo law demonstrator, which realizes preparation of a dry air environment and quantitative water injection through combination of a rigid air tank (1), a constant-temperature oil bath system, a multifunctional port (2) and a pressure monitoring device. Under the constant-temperature and constant-volume condition, liquid water is vaporized to form wet saturated air by injecting water (the mass ratio is 0.622) with the number equal to that of air molecules, the driving pressure is increased from 1 atm to 2 atm, and the direct proportion relation between the number of gas molecules and the pressure is visually verified. The device fills up the blank of an instrument for quantitatively demonstrating the Avudgdow's law in chemistry and thermotics teaching in high schools and universities.

The invention belongs to the field of fertilizer production, and particularly relates to a composite suspending agent and an anti-sedimentation layering method for producing a liquid water-soluble fertilizer.The method comprises the steps that modified ammonium nitrate, urea, a nitrogen-potassium fertilizer, monoammonium phosphate and a potassium fertilizer are put into water and stirred to be dissolved at the temperature of 40-50 DEG C, and a mother solution A is obtained; and S2, adding organic matters, medium trace elements selected and added according to a formula and a synergist into the mother liquor A in the step S1, and uniformly stirring and mixing at the temperature of 40-50 DEG C. The xanthan gum and the nano silicon material have the basic effects of preventing sedimentation, resisting layering, dispersing, suspending and stabilizing a system; after the two components are compounded, a remarkable synergistic effect can be generated. Specifically, the three-dimensional physical network structure of the nano silicon material can be intertwined with the linear polymer chain of xanthan gum to form a unique'rigid framework + flexible network 'composite structure, and the structure not only can enhance the suspension capacity of the system, but also can effectively optimize the rheological property.

The utility model relates to liquid state slagging technology field, and specifically is a kind of closed liquid state slagging device, including sealed tank, flange, slagging groove and drain valve, the water inlet is equipped in the sealed tank top side, the sealed tank both sides are equipped with drive motor and slagging valve, and the slagging valve side is installed flange by pipeline and bolt;The sealed tank bottom both sides are equipped with support frame, the support frame bottom both sides are equipped with lifting foot column, the position between the sealed tank bottom corresponding support frame is equipped with slagging groove and drain valve respectively.A part flows into slagging groove by drain net, after the fine waste slag in liquid water is filtered second time by second filter screen, second filter screen piece water is discharged by opening, and second filter screen is extracted regularly to clean and replace.

The invention relates to the technical field of insulators, in particular to a high-voltage line column type porcelain insulator with high bending strength. The porcelain insulator comprises a porcelain insulator body which is sequentially provided with an upper iron cap, a porcelain core rod, a lower flange and an umbrella cover group from top to bottom. The hydrophobic rods are arranged on the surface of the umbrella skirt at the bottommost end in an array mode to form the isolation layer and the water isolation cavity, when liquid water flowing from top to bottom passes through the isolation layer, the top ends of the hydrophobic rods can cut off the continuity of a water film, meanwhile, a static air film intercepted by the water isolation cavity is combined to prevent the liquid water from infiltrating an umbrella skirt substrate material, and therefore the umbrella skirt substrate material is prevented from being damaged. Liquid water flowing through the umbrella skirt is forced to be converted into isolated water drops from a continuous water film through the synergistic effect, rolling is accelerated due to the fact that the contact area of the liquid water and the solid surface is reduced, the water film covering area and the residence time of the umbrella skirt surface are directly reduced in the process, and under the low-temperature condition, ice cores are difficult to grow and firmly adhere to the surface; and the bending strength of the porcelain is further improved.

The invention relates to the technical field of refractory materials for steelmaking, in particular to a long-life refined ladle brick and a preparation method thereof. The long-life refined ladle brick provided by the invention consists of a mixture and a binding agent, the mixture is prepared from the following raw materials in parts by weight: 55 to 84 parts of RH magnesium aluminate spinel brick reclaimed materials with the particle size of less than or equal to 8mm, 5 to 9 parts of fused magnesia with the particle size of less than or equal to 1mm, 10 to 15 parts of macrocrystalline fused magnesia fine powder and 6 to 15 parts of carbon nanofibers; the binding agent comprises the following raw materials in parts by weight: 1-3 parts of liquid phenolic resin, 1-6 parts of silica sol and 1-2 parts of liquid water glass. The long-life refined ladle brick provided by the invention has the advantages of good volume stability, strong thermal shock resistance, excellent oxidation resistance and slag erosion resistance and long comprehensive service life.

The gas-liquid separator for compressed air provided by this utility model includes a tank body, an exhaust pipe, and a swirl vane device. The tank body includes a cylindrical tank body, an elliptical end cap connected to the top of the tank body, and a sealing plate connected to the bottom of the tank body. The tank body is provided with an air inlet and an exhaust outlet. The exhaust pipe is located inside the tank body, with its upper end connected to the exhaust outlet and its lower end extending downward and coaxial with the tank body to form a straight pipe section. The swirl vane device is sleeved on the upper end of the straight pipe section and is lower than the air inlet. By sleeved with an elliptical guide shroud on the straight pipe section, which is located below the swirl vane device and higher than the lower end of the straight pipe section, and a cooling coil for cooling is set between the elliptical guide shroud and the straight pipe section, the inlet and outlet ends of the cooling coil penetrate the tank body and extend outward. This not only utilizes the guiding effect of the elliptical guide shroud to prevent liquid water from being re-entrained into the exhaust pipe by the airflow, but also enables water vapor condensation through the cooling coil, thereby improving the gas-liquid separation rate and reducing the temperature of the compressed air, making it suitable for subsequent use.

The application relates to the technical field of water quality detection, and discloses a water quality detection device in an extremely cold environment, which comprises an ice surface collecting vehicle and an under-ice sampler; the ice surface collecting vehicle is used for collecting snow and ice columns on the ice surface; the under-ice sampler is used for sampling liquid water under the ice; the main body of the under-ice sampler is a floating body structure and can float to the bottom of the ice surface under water; a backwash wing is arranged at the front end of the under-ice sampler and is used for providing a forward moving impact force by means of water flow; a permanent magnet is arranged in the under-ice sampler, a magnetic track is arranged in the ice layer, or a magnetic block is arranged at the bottom of the ice surface collecting vehicle; if the thickness of the ice layer is small, the ice surface collecting vehicle is used for navigation; and if the thickness of the ice layer is large, a preset magnetic track is arranged at the bottom of the water. The under-ice sampler cooperates with the ice surface collecting vehicle to work, the under-ice sampler is not provided with a driving system, the initial power is provided by the water flow under the ice, the ice surface collecting vehicle or the preset magnetic track is used for providing guidance, the path of the under-ice sampler is controlled, and the fixed-point sampling is completed.

A method of operating an electrolyzer cell system includes providing a steam inlet stream to a stack of electrolyzer cells, generating a main product stream containing hydrogen and steam, and an oxygen exhaust stream in the stack, and providing liquid water into the main product stream to cool the main product stream.

This invention relates to the field of wood processing technology, and provides a novel method for preparing slicing from the decay and softening of extra-hardwood. The method includes the following steps: immersing a wood sample in a water-filled container, first applying a vacuum, then depressurizing and maintaining the pressure for a period of time to allow liquid water to penetrate the wood cell cavities; heating the immersed sample and applying a vacuum again to cause the liquid water to boil and vaporize; extracting the sample after the bursting treatment with cold and hot water sequentially to remove extractives from the wood and reduce its decay resistance; adjusting the moisture content; treating the sample with brown rot fungi to cause decay and softening on the axial surface of the sample; soaking the sample in water and then freezing it until it is solid, followed by slicing. This invention can successfully produce slicings of extra-hardwood, providing a strong theoretical foundation and technical means for studying the structure of extra-hardwood, predicting its physical and mechanical properties, and improving its high-value-added processing and utilization.

The application discloses a kind of based on stirling machine's emergency water collecting equipment, including condensing unit and water storage unit, and water in water-containing air is condensed to form liquid water droplets by the top condensing unit work, liquid water droplets from the condensing unit drop into bottom water storage unit and realize the collection of pure water.The relatively pure water is efficiently obtained in natural environment by the stirling device, without the fire source and other dangerous factors of distillation, safer and more efficient;The purity is higher than that of filtration and sedimentation;Compared with solar distillation, the device does not need to consider the sun angle, temperature and other conditions, and has wider application conditions and higher efficiency;The temperature of the produced water is low, the taste is better for drinking, and the rotation speed is limited by disassembling the speed limiting device for ice making, preservation or treatment in emergency.

The invention discloses a device for reducing saturated water content of wellhead coal bed gas and application. The device comprises a gas guide channel and is characterized by further comprising a heat transfer channel and a cyclone separation device which are connected in sequence, and the gas guide channel is used for connecting a wellhead and a gas station; one end of the heat transfer channel is connected to one end, close to the wellhead, of the gas guide channel; the coating is used for condensing water vapor in coal bed gas to form liquid water; one end of the cyclone separation device is connected to the gas guide channel; and the cyclone separation device is used for separating liquid water from condensed coal bed gas. The accumulated liquid in the gas guide pipeline can be discharged at low cost and low risk.

The utility model discloses a water curtain air-conditioning system for cooling and dehumidifying by cold water, which comprises a refrigerating system and at least one water curtain device connected with the refrigerating system through a pipeline, each water curtain device is connected with a water curtain control system, and the refrigerating system is used for cooling liquid water conveyed into the water curtain device; the water curtain device is provided with a water screen, and liquid water forms a water flow surface in direct contact with air on the water screen; each water curtain device is provided with an air monitoring device and a water temperature monitoring device, the air monitoring devices and the water temperature monitoring devices are connected with the water curtain control system, the air monitoring devices are used for monitoring the temperature and humidity of air near the water curtain devices, and the water temperature monitoring devices are used for monitoring the water temperature of water at the water flow surface positions on the water curtain devices; and when the difference between the water temperature of the water flow surface and the dew point temperature of the air reaches a set threshold value, the water curtain device stops running. The water vapor is condensed on the surface of the low-temperature water flow surface, cooling and dehumidification can be achieved at the same time, a control system is additionally arranged, intelligent control is achieved, and energy consumption of a building is reduced.