2444results about How to "Speed up evaporation" patented technology

Irrigation and drainage systems are disclosed, including a saturated zone and at least one pipe in communication with the saturated zone. The pipe(s) can be configured to comprise a tubarc porous microstructure for conducting water from the saturated zone to an unsaturated zone in order to drain the water from the saturated zone. The water can be delivered from the saturated zone to the unsaturated zone through the tubarc porous microstructure, thereby permitting the water to be harnessed for irrigation or drainage through the hydrodynamic movement of the water from one zone of saturation or unsaturation to another.

The invention discloses an air jet assisting multi-needle electrostatic spinning device which comprises a spinneret plate with the air jet assisting function. Multiple metal needles are arranged on the spinneret plate. The head ends of all the metal needles are connected in series through a wire. The wire is connected with the positive electrode of a direct-current high-pressure generator. The tail end of each metal needle is connected with an injector through a liquid guide pipe. The injector is driven through a micro-injection pump. A receiving device is arranged below the spinneret plate and connected with the negative electrode of the direct-current high-pressure generator. By the adoption of the air jet assisting multi-needle electrostatic spinning device, the spinneret plate with the multiple needles serves as a spinning module, on the basis, the air jet assisting function is added to increase the volatilizing speed of a spinning solvent, accelerate jet flow solidification and increase the operation speed, so that the yield of unit time of nanofibers is increased, the fibers are stretched to a certain degree through jet air flow, and the nanofibers with the smaller diameter can be acquired.

An aspect of the invention relates to a garment which comprises at least a first zone and a second zone. The first zone of the garment is arranged in the spine area and comprises a higher degree of air permeability than the second zone. The second zone of the garment is arranged below the breast area and in the area of the lumbar vertebrae and comprises a higher degree of moisture wicking than the first zone.

Methods and apparatus for heating an object 9 that includes an absorbed medium. A method embodiment comprises: placing the object 9 including the medium into an enclosure 16; initiating a heating process by subjecting the object 9 and medium to a capacitive AC electrical field generated by an RF power source 2 at a single low frequency; controlling the heating process by taking real time measurements; and making real time adjustments to the RF power source 2 in response to the real time measurements. The object 9 substantially absorbs the medium in a first “cool” state, and therefore has a maximum weight in the first “cool” state. The object 9 is substantially free from the medium in a second “heated” state, due to substantial release of the medium from the object 9. The released medium is evaporated during the heating process. The heating process is completed when the object 9 is substantially transitioned into the second “heated” state. The method further comprises causing an air flow 11 inside the enclosure 16 to carry away evaporated medium out of the enclosure 16.

A method, system, and apparatuses for simultaneous heat and mass transfer utilizing a carrier-gas at various absolute pressures are described. A method may include: thermally coupling at least two continuous contacting apparatuses together; varying the pressure between the at least two continuous contacting apparatuses; allowing heat removed from the first continuous contacting apparatus to be the heat delivered to the second continuous contacting apparatus. A system may include: at least two continuous contacting apparatuses thermally coupled together and operating at different absolute pressures. A continuous contacting apparatus may include: an evaporation chamber and a dew-formation chamber both operating at an absolute pressure in a vacuum range. A continuous contacting vapor recompression apparatus may include: an evaporation chamber operating at a first absolute pressure; and a dew-formation chamber operating at a second absolute pressure higher than the first absolute pressure.

Chemical etching methods and associated modules for performing the removal of metal from the edge bevel region of a semiconductor wafer are described. The methods and systems provide the thin layer of pre-rinsing liquid before applying etchant at the edge bevel region of the wafer. The etchant is less diluted and diffuses faster through a thinned layer of rinsing liquid. An edge bevel removal embodiment involving that is particularly effective at reducing process time, narrowing the metal taper and allowing for subsequent chemical mechanical polishing, is disclosed.

An evaporation device for increasing evaporation from a surface of a body of liquid, comprises at least one evaporation element having at least one evaporation surface wettable by the liquid and at least partially exposable to wind when wetted, so as to allow evaporation of the liquid from the evaporation surfaces whereby the total evaporation area of the surface of the body of liquid is increased.

An ionization method for use with mass spectrometry or ion mobility spectrometry is a small molecule compound(s) as a matrix into which is incorporated analyte. The matrix has attributes of sublimation or evaporation when placed in vacuum at or near room temperature and produces both positive and negative charges. Placing the sample into a region of sub-atmospheric pressure, the region being in fluid communication with the vacuum of the mass spectrometer or ion mobility spectrometer, produces gas-phase ions of the analyte for mass-to-charge or drift-time analysis without use of a laser, high voltage, particle bombardment, or a heated ion transfer region. This matrix and vacuum assisted ionization process can operate from atmosphere or vacuum and produces ions from large (e.g. proteins) and small molecules (e.g. drugs) with charge states similar to those observed in electrospray ionization.

A device which utilizes the solar energy to carry out chimney generating and seawater desalting relates to the technical field of utilizing the solar energy to carry out generating and seawater desalting. The invention includes a solar chimney, a transparent heat collecting shed, a solar distilling pool and a turbine generator set. The transparent heat collecting shed is covered on a supporting group; the turbine generator set is arranged in the solar chimney arranged at the connection location of the solar chimney and the transparent heat collecting shed; the solar distilling pool and a rock heat accumulating layer are arranged at the lower side of the transparent heat collecting shed; a transparent cover plate is obliquely arranged at the upper end of the solar distilling pool; the lower end of the solar distilling pool is respectively connected with a seawater input pipe, a brine output pipe and a fresh water output pipe. The device of the invention improves the comprehensive operating factor of the solar energy, improves the comprehensive operating factor of land resource and simultaneously reduces the cost of each product such as power, heat accumulating amount, fresh water in another way.

We provide an evaporator technology for treatment of produced water that may be deoiled water. Systems described herein utilize a vertical tube heat exchanger bundle where the brine is distributed in a falling film along the inside of the tube wall. Condensing steam causes a portion of the deoiled water to evaporate; this water vapor travels upward in a counterflow direction relative to the deoiled water. This evaporator technology provides several design advantages over the conventional vertical tube co-current flow evaporators (where the vapor flows downward with the falling film). These advantages include a minimal total installed cost (TIC) as well as offering optimal design features for water chemistry management.

Mixed-phase TiO₂ nanofibers prepared via a sol-gel technique followed by electrospinning and calcination are provided as photocatalysts. The calcination temperature is adjusted to control the rutile phase fraction in TiO₂ nanofibers relative to the anatase phase. Post-calcined TiO₂ nanofibers composed of 38 wt % rutile and 62 wt % anatase exhibited the highest initial rate constant of UV photocatalysis. This can be attributed to the combined influences of the fibers' specific surface areas and their phase compositions.

Methods for cerebral and systemic cooling via a patient's nasopharyngeal cavity are described. In one method, a cooling assembly is inserted into a nasal cavity through a patient's nostril. A substantially dry gas is delivered through a lumen of the catheter onto the surface of the patient's nasal cavity. Evaporative heat loss cools the patient's nasal cavity. If additional cooling is needed, a liquid coolant is delivered through a separated lumen of the catheter. The liquid coolant is nebulized at a plurality of delivery ports on the distal end of the catheter and is delivered onto the surface of the patient's nasal cavity in combination with the dry gas. The dry gas enhances evaporation of the nebulized coolant and additional cooling is provided from the evaporative heat loss of the liquid coolant.

The invention discloses a rotary annular-seam spray nozzle comprising a core seat, a rotary core and a rotary annular-seam spray hole, wherein a core cavity is arranged in the core seat, an inlet and an outlet which are communicated with the core cavity are arranged on the core seat, a core seat inlet is communicated with a pressure flow source, the rotary core can be sleeved into the core cavity in positioning and rotating modes and is concentric with the core cavity, a rotation-promoting flow path is arranged on the rotary core or/and the wall of the core cavity in order to mutually rotate the rotary core and the core cavity by using flow power, one end of the rotary core is penetrated into the core seat outlet, and the penetrating end forms the rotary annular-seam spray hole with the inner wall of the core seat outlet. The cross section of the spray hole of the rotary annular-seam spray nozzle is an annular seam, the annular seam and a diameter can be set to respectively and conveniently control the fineness and the flow of pressure spray and make liquid drop sizes more evenly and finely distributed. The rotary annular-seam spray nozzle has a self-cleaning function, is not easy to block and is in a self-closing dust-resisting type; the rotary annular-seam spray nozzle is arranged on a spray head body or the core seat of the rotary annular-seam spray nozzle is connected with the spray head body, the spray head body is communicated with the pressure flow source, and therefore, the spray device with the rotary annular-seam spray nozzle can be formed.

The invention belongs to the field of environmental protection, and in particular relates to a sludge treatment process. The sludge treatment process comprises the following steps: 1) impurity removal: use multi-stage grille to filter out the garbage in the sludge; 2) pretreatment: utilize the three-stage sludge settling tank to pretreat the sludge to obtain the first, second, and The sludge in the three-stage sludge settling tank, the sludge slurry and the supernatant after being settled in the three-stage sludge settling tank; 3) solidification treatment: respectively adopt mixing solidification and dehydration solidification methods for the first, second, and third-stage sludge sedimentation The silt and silt slurry in the pond are dehydrated and solidified to obtain silt-solidified soils A and B; 4) stacking and aging: transport the silt-solidified soils A and B to a temporary storage yard and age them for 3 to 7 days to complete the treatment. The sludge treatment process of the present invention can simultaneously process particles and sludge with high viscosity and low water content, as well as sludge slurry with fine particles, organic matter and high water content, and is especially suitable for river courses with complex components, wide particle distribution, and large water content differences silt.

The invention provides a method for preparing a perovskite thin film in a perovskite solar cell via a solution air extraction and ventilation method. The method comprises the following steps: a perovskite liquid film coated on a surface of a base body is subjected to air extracting and drying operation in an environment where the partial pressure of the solvent is lower than 99% saturated vapor pressure of the solvent at current temperature; during drying processes or after the perovskite liquid film is completely dries, a gas which does not react chemically with a perovskite is let in, and therefore a process that the solvent is evaporated or solvent molecules leave the environment can be accelerated via solvent molecule concentration dilution. Heterogeneous nucleation and growth of the surface of the base body can be realized via control over drying process conditions, and therefore a uniform and compact perovskite thin film can be formed. The method can be used for accelerating liquid film drying processes, making solvent steam molecules leave a surface of the thin film quickly, and obtaining the uniform-structured and compact perovskite thin film; thus current leakage caused by perovskite thin film loopholes can be prevented and the method can help make high-efficiency solar cells; the method is advantaged by simple operation, easy-to-implement property, low cost, high repetition accuracy, convenience for industrialization and the like.