73 results about "Capillary water absorption" patented technology

The invention discloses a polyester elastomer / PET composite elastic fiber and a preparation method thereof. The preparation method comprises the steps of firstly carrying out reduced-pressure direct esterification on terephthalic acid, 1,4-butanediol and double-ended hydroxyl polyether in a certain proportion in the presence of catalysts, carrying out melt polycondensation to obtain a polyester elastomer, and carrying out a spin-draw-winding one-step process on the prepared polyester elastomer and PET, so as to obtain the polyester elastomer / PET composite elastic fiber, wherein the breaking strength of the polyester elastomer / PET composite elastic fiber is 2.8cN / dtex-3.56cN / dtex, the elongation at break is 16.9%-30.4%, the curling degree is 60%-75%, the curling elasticity rate is 97%-99%, the capillary water absorption height is 9.7cm / 30min-14.1cm / 30min. Compared with normal composite elastic fibers, the polyester elastomer / PET composite elastic fiber has relatively excellent elasticity and relatively soft hand feeling, and the fabric capillary suction effect of the polyester elastomer / PET composite elastic fiber is even higher than those of cotton fabrics; the preparation method is short in production process, high in spinning speed and low in cost, and the prepared composite elastic fiber can be directly used in subsequent weaving without being processed into interlaced yarns.

The invention provides an automatic test system and test method for testing surface capillary water absorption of concrete, relates to a test system and a test method thereof, and aims to solve the problems that the existing test system is impracticable to ensure that the effective depth of a specimen immersed in water is always a small constant value, the water absorption mass of the specimen can not be automatically and continuously measured in real time, accidental errors caused by manual operation and the like exist, the test sensitivity is low and the precision is low. The system comprises a constant-pressure water supply unit, an electronic balance and a specimen water absorption unit. The test method comprises the following steps: 1, emptying liquid in a balanced air inlet pipe; 2, regulating height and water level of the specimen water absorption unit; and 3, acquiring mass data by using a computer. According to the invention, the effective depth of the specimen immersed in water can be ensured to be always a small constant value, real-time automatic continuous measurement can be realized, the accidental errors can be reduced, the test sensitivity is high, and the precision is high. The system and method are used in the fields of experimental study on pore structures and surface capillary water absorption of a concrete material, and physical engineering durability detection.

The invention discloses a method for visually representing spatial distribution and content of water in a cement-based material. The cement-based material which has good forming property and is maintained for a certain age is taken and dried to obtain a sample; all end surfaces and side surfaces, excluding a wetted surface, of the sample are sealed by paraffin; the sample is put in a flat-bottom container, and the wetted surface is supported by small cushion blocks; the flat-bottom container is put on an X-CT (X-Ray computed tomography) imaging device table, water is injected into the flat-bottom container until the water surface is higher than the wetted surface of the sample for a certain distance, a capillary water absorption experiment is performed, meanwhile, an X-CT imaging device is started, and the water soaked sample is subjected to X-CT imaging; an X-CT image is subjected to gray scale analysis, and change of capillary water absorption depth of the sample is obtained; the capillary water absorption depth coefficient is obtained by means of capillary water absorption depth and time; and change of capillary water absorption quality of the sample is obtained by means of the capillary water absorption depth coefficient and sample porosity. According to the method, change of the water soaked depth can be quantitatively represented, and the capillary water absorption quality change can be accurately predicted.

The invention belongs to the field of carpets and particularly relates to a carpet box with a capillary water absorption function. The carpet box includes a box body with an opening in the upper end,a movable case capable moving in the vertical direction is arranged in the box body, a pedal is fixedly connected to the upper end of the movable case, multiple capillary holes uniformly run through the upper and lower portions of the pedal, multiple drain holes used for drainage are formed in the bottom of the movable case, and an elastic first airbag is fixedly connected between the lower end ofthe movable case and the inner bottom surface of the box body and communicated with the movable case through multiple retractable hoses; a first check valve is fixedly connected to each retractable hose, and a venting mechanism is arranged on the side wall of the first airbag. Water on people's shoe soles is absorbed by means of a capillary phenomenon and then discharged, correspondingly the capillary holes can always maintain a great water absorption capability, and the water absorption effect of a carpet is effectively improved. Moreover, through arrangement of a second airbag, the capillary holes can be cleaned in time, and blockage is avoided.

The invention discloses a partition-optimized ultrathin VC with the thickness of 0.1-0.4 mm and a preparation method. The ultrathin VC comprises an upper cover plate and a lower cover plate, and the upper cover plate and the lower cover plate are welded. Each of the upper cover plate and the lower cover plate comprises an evaporation section, a heat insulation section and a condensation section; the surface of the evaporation section of the upper cover plate is of a super-hydrophilic cavity-shaped micro-nano structure, the surface of the heat insulation section of the upper cover plate is of asuper-hydrophilic equal-width groove micro-nano structure, and the surface of the condensation section of the upper cover plate is of a super-hydrophobic conical micro-nano structure; and a super-hydrophilic conical micro-nano structure is arranged on the surface of the area of the evaporation section of the lower cover plate, a super-hydrophilic cactus-like wedge-shaped groove micro-nano structure is arranged on the surface of the area of the heat insulation section, and a super-hydrophilic conical micro-nano structure is arranged on the surface of the area of the condensation section. The invention further discloses a preparation method of the ultrathin VC. A steam cavity structure, a liquid cavity structure and volume distribution in a heat pipe can be optimized, and good capillary water absorption performance and low water resistance and heat resistance of the heat pipe can be guaranteed.

The invention aims to solve the problem that an existing testing system is difficult to realize sustained load application on concrete and the coupling process of capillary water absorption and discloses a device and a method for testing the concrete surface capillary water absorption under sustained load functions. The test device comprises a water supply unit, a horizontal observation unit, a hollow test piece unit and a steel plate. The test method comprises the steps that the upper end and the lower end of the hollow test piece unit are sealed, and the hollow test piece unit is connected with a water pipe of the water supply unit and the observation unit and is sealed and fixed; after an observation pipe is adjusted to be level, sustained load is applied and water is injected; the initial value of the position of the water column in the pipe and the variation along the time are recorded and observed. The method is easy to operate, the device structure is ingenious, real-time and continuously accurate measurement of the concrete accumulated water absorption process under the sustained load functions is realized, the accumulated capillary water absorption curve is obtained by the measurement under set time and load functions, and the capillary water absorption test research of the concrete material under the sustained load functions and the durability estimation of a practical engineering structure can be carried out.

The invention relates to a method for cracking sludge through ultrasonic coupling Fenton oxidation. Firstly, the pH value of a sludge system is regulated to 2.5 to 3.5 by diluted hydrochloric acid, then, ultrasonic waves and Fenton oxidation are adopted for simultaneously cracking a sludge system, the ultrasonic wave frequency is 20 to 40 kHz, and the ultrasonic sound energy density is 50 to 125 W / L; the simultaneous cracking time of the ultrasonic waves and Fenton oxidation on the sludge system is 0.25 to 1 hour, the sludge cracking effect is improved, and compared with non-enhanced Fenton oxidation treatment, the ultrasonic coupling Fenton oxidation has the advantages that the specific resistance of the sludge and the capillary water absorption time are greatly reduced. The method for cracking sludge through ultrasonic coupling Fenton oxidation has the advantages that the fetor control effect is obvious, and the Fe<2+> addition quantity and the H2O2 addition quantity are greatly reduced, so the treatment cost is greatly reduced.

A slope protection ecologic hollow multihole ground anchor and anchoring method belongs to the side slope protection technical field. The ground anchor comprises a hollow tube body, water permeable holes are distributed on the hollow tube body, and the hollow tube body is filled with water absorbent material. When in anchoring a method that ecologic ground anchor and common ground anchor are arranged alternately is adopted. In the invention, water permeable holes are arranged on the basis of a common steel water pipe, and dry saw powder is filled in the pipe, so that the ground anchor has mechanic anchoring performance while moisture in deep slope body is led to shadow slope body by utilizing dual actions of permeation of the water permeable holes and capillary water absorption of the saw powder, thus supplying moisture to the base material while reducing water content in deep slope body and reducing slope failure. Communication action of the ground anchor can promote 'ground gas' exchange between slope surface and the interior of the slope body, and nutrient elements contained in the 'ground gas' can further improve nutrient level of the base material. The invention is the perfection of the vegetation concrete ecological protection technology and has important application value.

A condenser with capillarity cooling devices provides a condenser that has a plurality of cooling fins with a wick structure and a plurality of capillary water absorption layers of which the lower section is submerged in the water of a water reservoir provided underneath. Through capillarity and the characteristic of the capillary water absorption layers, water will be brought upward to moisturize the fins. When the water evaporates, a great amount of heat will be extracted from the fins, so as to increase the thermal efficiency of the condenser. Further, a pre-wetting water pipe is included, so that when an air conditioner is switched on and the condenser is started, the pre-wetting water pipe moisturizes the capillary water absorption layers immediately, and such moisture extends to the overall wick structures of fins. This will make evaporation take place instantly and thermal efficiency of condenser is increased.

The invention provides a test method for prepreg resin infiltration degree. The method is mainly for testing the impregnation degree of a vacuum bag molded oven cured prepreg. The method utilizes the capillary water absorption phenomenon occurred during contact of dry fiber and water, and water rises along the capillary between fiber bundles and infiltrates the fiber till reaching a saturated water absorption capacity. The resin infiltrated interfibre capillary channel is closed, capillary action cannot occur to absorb water, so that the water absorption capacity can be utilized to judge the content of dry fiber in the impregnated prepreg, thus testing the impregnation degree of the prepreg.

The invention provides a method for producing composite cooper powder for an ultrahigh heat pipe. The method for producing the composite copper powder for the ultrahigh heat pipe comprises the steps of powder blending, heat treatment, smashing, oxidant treatment and screening. The composite copper powder produced according to the method is formed in the mode that after electrolytic copper powder and water atomized copper powder are mixed, heat treatment, smashing, oxidant treatment and screening are conducted on the mixture. After compaction and sintering are conducted on the composite copper powder, a capillary structural layer with high communication porosity and high capillary water absorption rate can be obtained, and the heat conduction efficiency of the ultrathin heat pipe is improved.

The invention provides a simple and portable device for rapidly preparing purified water by utilizing solar energy, and belongs to the technical field of water evaporation. The device is mainly composed of a condensing lens, an evaporation and condensation cover, a water collecting device and a hydrothermal evaporation device. The steam condensation cover and the evaporated water collecting deviceare designed to be of a double-layer structure with a middle layer, the size of the device can be reduced after air is exhausted, and the device is convenient to carry. The device floats on the watersurface under the action of buoyancy, and water is absorbed to the photo-thermal conversion layer by capillary water absorption strips with high water absorption; the photo-thermal conversion layer is made of a dark-color and high-temperature-resistant light absorption material; the condensing lens is a convex lens and can condense a light source in the photo-thermal conversion process and then irradiate the photo-thermal conversion layer. The condensing lens can achieve efficient utilization of light, and then the photo-thermal conversion efficiency is improved. The vaporized water is liquefied on the inner wall of the condensation cover under the action of high temperature and then collected. Therefore, sewage purification, seawater desalination and other applications are realized.

The invention discloses a multipurpose dual-layer hollow core composite multi-strand filament and a manufacturing method and application thereof. The dual-layer multi-strand filament includes a plurality of single-strand fiber filaments; each single-strand fiber filament includes an outer surface layer and an inner core layer, the outer surface layer covers a surface of the inner core layer, and the inner core layer is of a hollow tube structure, the plurality of single-strand fiber filaments are bond together to form a unit, the inner core layer is a high-melting-point inner core layer made of a PP or PET or TPU or TPEE material, the outer surface layer is a low-melting-point outer surface layer made of a PE or PP or POE or TPU or TPEE material, and the melting point of the high-melting-point inner core layer is higher than that of the low-melting-point outer surface layer. The fiber filaments adopt a hollow inner core structure, and then the dual-layer fiber filaments have high porosity, an excellent capillary water absorption effect, excellent water conductivity, excellent water absorbing performance, and excellent filtering performance; and one dual-layer fiber filament includes a plurality of single-strand filaments, and then one dual-layer fiber filament has higher porosity in a unit area, and has stronger water absorption effect than a single filament.

The invention discloses an automatic capillary water absorption measuring device and method for a building porous material. The device comprises a windproof glass hood, an electronic balance, a glassbearing table, a metal hanging rack, a glass water channel, a high level water tank and an electronic computer, wherein a netty metal washer is suspended right below the electronic balance through a metal hanging rack, the electronic balance is arranged on the glass bearing table, and the glass bearing table is connected to the glass water channel; the windproof hood covers the electronic balance;the electronic balance is connected to the electronic computer through a balance data line; the high level water tank is supported and fixed through a supporting rack, the bottom of the high level water tank is higher than the highest position of the liquid level of the glass water channel, one end of a transfusion pipe is connected to a bottom opening of the high level water tank while the otherend is connected to the glass water tank through an opening in the lateral side, and a flow controller is arranged on the transfusion pipe. By making full use of the data output function of the electronic balance and the automatic recording function of the electronic computer, the weight data of a test-piece can be read continuously, so that the influence caused by human factors is avoided.

The invention relates to the technical field of improvement on the water-removing performance of sludge and particularly relates to a method for improving the water-removing performance of urban sludge by coupling treatment of ultrasonic wave and chitosan. The method comprises the following steps: firstly adopting acid liquor to adjust the pH value, adding the chitosan, then stirring for a period of time at high speed, stirring for 10-15 minutes at low speed, then adopting ultrasonic treatment, further enabling bound water, absorbed water, interstitial water and free water in the sludge to be partially removed and further enabling the water content in the sludge to be reduced from more than 98% to less than 68%, and the capillary water absorption time of sludge is reduced. The method has the advantages that the content of polysaccharide and protein in supernatant liquor of sludge treatment is increased, the water-removing performance of the sludge and the quality of the removed water are improved, the operation is simple, the energy consumption is low and the cost is low.

The invention discloses a deep dehydration method for solidifying fresh sludge through landfill stabilized sludge incineration residue. The method comprises two steps of chemical conditioning and modifying: adding water into fresh sludge to be dehydrated into sludge with moisture content of 80%-85%, conditioning into sludge with moisture content of 90%-93%, adding landfill stabilized sludge incineration residue 10%-30% the weight of the sludge, mixing uniformly; mechanical squeezing and deep dehydrating: pumping the conditioned sludge into a plate-and-frame filter press, deep dehydrating for 1 hour under the pressure of 1MPa. The method has the advantages that due to the utilization of the landfill stabilized sludge incineration residue, the capillary water absorption time of the sludge can be obviously shortened, and the dehydration performance of the sludge can be sharply improved; after filter pressing and dehydrating, the moisture content of the sludge is reduced to be less than 60%; the waste is used for processing waste, the dehydration performance of fresh sludge can be greatly improved, and the landfill stabilized sludge is excavated and recycled.

The invention belongs to the concrete material durability monitoring equipment technology field and especially relates to the real-time monitoring device of a concrete capillary water absorption rateunder a load. The main body structure comprises a concrete test piece, a left steel plate, a right steel plate, a preformed hole, a threaded rod, a spring, a pull nut, a pressing nut, a suction box, asealing ring, a cover plate, a number one high strength bolt, a number two high strength bolt, a water injection pipe, a water injection valve , a water supply tank, a water outlet pipe, a silicone hose, a water storage tank, an air pressure balance hole, a mass sensor, a multi-channel data collector, a computer and a strain gauge. Force transmission is performed among the right steel plate, thepull nut and the pressing nut through a spring, and the mass sensor is connected with the computer. The mass reduction amount of the water storage tank and the change rule of time can be transmitted to the computer in real time and a concrete test piece cumulative water absorption curve can be drawn in real time. The capillary water absorption of a concrete test piece is tested continuously in real time, and the high-precision measurement requirements of the capillary water absorption of the concrete test piece under different loads can be realized.

The invention discloses an anti-hydrophobic soil stabilizer and a preparation method thereof. The preparation method of the anti-hydrophobic soil stabilizer comprises the following steps in parts by weight: dissolving 3 parts by weight of oleamide and 6 parts by weight of triisopropanolamine in alcohol to obtain a mixture; then, reacting the mixture with 5 parts by weight of carbolic acid and adding water into a reaction kettle to synthesize the anti-hydrophobic soil stabilizer. The anti-hydrophobic soil stabilizer is applied to paving a road, performing phosphogypsum environment-friendly treatment, performing slope treatment and performing stone carving artwork repair. The anti-hydrophobic soil stabilizer disclosed by the invention can be used for improving a soil granule structure, lowering the soil particle interface activity, enabling the original cohesion inside the soil particles to recombine to produce irreversible cohesion, blocking soil mass gaps to enable the soil particles to lose capillary water absorption, directly mixing with the natural soil and lowering the consumption and saving over 50% of the energy resources by enabling a weight ratio of the anti-hydrophobic soil stabilizer to natural soil to be smaller than and equal to 0.1%, and can not cause pollution on the natural environment after being mixed into the soil.

The present invention relates to the technical field of sludge dewatering performance improvement, particularly to a sludge dewatering performance improvement method of boron-doped diamond electrode coupled calcium chloride. According to the method, a titanium-based boron doped diamond electrode is adopted as an anode and a stainless steel electrode plate is adopted as a cathode to form an electrolytic tank; a coupled calcium chloride raw material is added so as to destruct the flocculation structure in the sludge and the biological cell wall, such that the flocculation structure in the sludge and the bound water in the biological cell wall are exposed; and under the addition of the calcium ions, the calcium ions act with the exposed binding site of the bound water so as to release the bound water in the sludge, such that the sludge dewatering performance is substantially improved. Compared with the sludge treating separately using the boron doped diamond electrode as the anode or the sludge treating separately using calcium chloride, the method of the present invention has the following advantages that: the capillary water absorption time of the sludge can be reduced by 30-40%, the concentrations of polysaccharides, proteins and DNA in the supernatant can be increased by 12-24%, and the moisture content of sludge after centrifugation can be reduced to 70.6%.

The invention discloses a vehicle-mounted flower growing device and a flower growing method thereof. The device comprises a liquid container which has a heat preservation function, a built-in flower pot and a sealing cover, wherein the flower pot is filled with nutrient soil which is beneficial to growing of corresponding flowers, the built-in flower pot is located inside the liquid container, a hollow cavity which is used for accommodating nutrient liquid is arranged between the liquid container and the built-in flower pot, the sealing pot is located on the built-in flower pot and is sealed with an opening of the liquid container, plant growing holes are formed in the sealing cover, and the nutrient soil and the nutrient liquid are communicated through capillary water absorption ropes. According to the device and the method, a main environment of the soil which is required for the growing of flowers is controlled effectively, a root system and sprouting portions for growing of the flowers are prevented from being damaged, and a car owner is only required to regulate a ventilation opening of an air conditioner inside a car and to ensure that the ventilation opening is in the state of ventilation outside the car, so that the ventilation effect for growing of flowers is guaranteed, and long term survival of the flowers inside the car can be achieved. The vehicle-mounted flower growing device is simple in structure, the flower growing method is simple and feasible, flowers can be grown inside a car for a long time, and air inside the car can be purified and freshened.

The invention discloses a waterproof autoclaved aerated brick enhanced by a doped and modified carbon nanotube. A multi-walled carbon nanotube is modified by using a silane coupling agent, and is added to the preparation of brick body slurry, so that the mechanical property of a brick body can be improved, the capillary water absorption resistance of cement can be improved, the pore structure of cement paste is improved and the waterproof autoclaved aerated brick is very effective for improvement of the anti-permeability of the aerated concrete brick. Wastes are utilized, the raw materials are low in cost, industrial control is facilitated by the process, the prepared aerated brick is excellent in water resistance, high in strength and good in abrasive resistance, the self-weight of the brick body is reduced by the porous structure and the burden of a building is reduced.

Provided is a water-saving irrigation method. The method comprises the steps that a pipe network system used for irrigation water circulation is laid in the position located 5-10 cm below the earth surface; capillary water absorption components are arranged in the pipe network system, and the capillary water absorption components are arranged below the earth surface. According to the water-saving irrigation method, irrigation is conducted below the earth surface, water enters soil from the pipe network system directly, due to the fact that the water does not make contact with air, the evaporation capacity is almost zero, therefore, the water-saving effect of the water-saving irrigation method is obvious. The invention provides a water-saving irrigation system which comprises the pipe network system and the capillary water absorption components; the pipe network system comprises a main pipeline and branch pipes which are connected with the main pipeline; water outlets are formed in the branch pipes, and the water outlets are located on the lower portions of the maximum cross sections of the branch pipes in the horizontal direction; the capillary water absorption components are arranged on the water outlets and used for leading out the water. According to the water-saving irrigation system, the whole system is arranged below the earth surface, the irritation water is not exposed in the air, therefore, the evaporation capacity is almost zero, and the water-saving effect is obvious.

The invention discloses a pressurized capillary water absorption height and water absorption amount measuring device and measuring method thereof. The measuring device comprises fixing holes, pressurizing bolts, clamping plates, and a partition paper. The upper portions of the clamping plates are provided with the fixing holes used for fixing the top of the measuring device; the clamping plates are further provided with pressurizing bolts used for carrying out pressure regulation on the clamping plates and simulating true pressure; the clamping plates has two pieces, and a separator paper is sandwiched between the two clamping plates to form a closed environment. An aqueous solution containing a methyl red indicator is arranged in a containing groove. 6 inches of the bottom of the clampingplates are immersed in the aqueous solution containing the methyl red indicator. The containing groove is arranged in a constant-temperature device. The measuring device and the measuring method canbe used for detecting the capillary water absorption (acid) height of the AGM (Absorbent Glass Mat) separator in a pressurized state and measuring pressurized water absorption (acid) amount at the same time.

A water conduction material in a water storage flowerpot is a fiber material capable of water absorption and water conduction. The material is characterized in that the fiber material capable of the water absorption and water conduction is a super water absorbent fiber material with dual effects including capillary water absorption and chemical water absorption; a thin material could achieve better water conduction effects which could not be compared by common materials; materials of the type can automatically adjust water supply speed and water supply amount according to soil humidity; the super water absorbent fiber material of the type is made into wadding or ropes or cloth or rods; the manufacture method is simple, the cost is low, and the material is light, convenient and practical and has good water conduction effects; and perfect, special and unexpected use effects of the water storage flowerpot could be achieved.

The invention discloses a double layer multi-strand wire prepared fiber rod and a preparation method thereof. The fiber rod is compositely prepared by heating multiple pieces of double layer multi-strand wires, each piece of double layer multi-strand wire comprises multiple strands of single-strand fiber wire, the single-strand fiber wire is singularly composed of inner core layers, the inner core layers are high melting point inner core layers prepared from the PP materials, multiple strands of single-strand fiber wire are bonded together with each other, through the heating method, the outer surface layer of low melting point is melted, while the inner core layers of high melting points do not dissolve, the remaining multiple pieces and multiple strands of the inner core layers of fiber wires can be bond together with each other by the physical effect produced by the dissolution of the outer surface layer, the preparation method completely puts an end to the use of glue and boiled oil water, redundant impurity substances are not generated, chemical substances are not generated in the fiber rod, and any kind of pollution cannot be generated when it is in the operating process or in the recycling process of a later period, so that the fiber rod becomes an environmentally friendly, green and pollution-free product, meanwhile, because there is no impurities to block the pores, the situation of the swelling and looseness of the fiber cannot occur, therefore, compared to the use of the traditional fiber rod of the glue, the present fiber rod has relatively strong capillary water absorption effect and long service life.

The invention discloses a method for mud fast sedimentation conditioning and solid-liquid separation, and the method is suitable for the field of abandoned construction work mud disposal. The method of combining a capillary water absorption (CST) meter and a laser diffraction granulometer is adopted. The CST meter measures the time which water needs to permeate standard filter paper by a certain distance namely CST time, and the laser diffraction granulometer measures the mud particle size distribution range. The CTS values can visually reflect the mud dehydration effect and then determine the sedimentation conditioning performance of flocculant to facilitate screening of the optimal flocculant or combination, and the usage amount of the flocculant is best. Model selection of filter cloth is guided by the particle size distribution range, the dehydration effect of follow-up mechanical dehydration equipment is enhanced, and the dehydration efficiency is improved, which is beneficial for mud reduction. Mud fast sedimentation conditioning and solid-liquid separation are achieved by the method, and the method needs short time and has the advantages of being high in efficiency, economical, efficient and convenient.

The invention relates to the technical field of air purification, and discloses an indoor air quality monitoring and purifying system which comprises a mixing chamber and a water tank. A capillary water absorption column is arranged in the water tank, an ultrasonic atomizer is arranged on the side wall of the water tank, and the capillary water absorption column is connected with the water inlet end of the ultrasonic atomizer; a guide pipe is arranged on the side wall of the mixing chamber, and a needle-shaped electrode is arranged in an inner cavity of the guide pipe; an electrode plate is arranged on the outer wall of the mixing chamber, and the needle-shaped electrode and the electrode plate are electrically connected with positive and negative electrodes of a high-voltage power supply;an air inlet pipe with an exhaust fan and an air monitor is arranged at the bottom of the mixing chamber; and an exhaust pipe with an air-mist separation mechanism is arranged on a top cover of the mixing chamber. According to the indoor air quality monitoring and purifying system, water mist is generated through ultrasonic atomization, an electric field is applied to the water mist to enable thewater mist to be electrified, the water mist is rapidly and efficiently mixed with air entering the mixing chamber, finally, clean air is obtained through separation of the air-mist separation mechanism, and the purification efficiency is high; and the charged water mist has a certain killing effect on microorganisms carried on particles or suspended matters.

The invention discloses an automatic water replenishing plant wall based on intelligent home, and solves the problem that the installation of a large number of pipelines is troublesome because a dripirrigation method is used for the plant water replenishing of a prior plant wall. By using water diversion cotton, the planting soil absorbs water from a below planting pot and does not absorb waterafter being saturated, the amount of water is not required to be pre-estimated, the water is not overflow, the problems that, when using the drip irrigation method, pre-estimating the drip irrigationwater flow is needed, overflow is caused when the amount of water is too large, and the growth of the plant is not facilitated due to the lack of water when the water quantity is too small are solved;the diversion cotton depends on the gravity of the water and the capillary water absorption phenomenon, increasing extra power is not needed, the problem that, when using the drip irrigation method,a booster pump is additionally added for pressure boosting when the area of the wall body is large and the pipeline is lengthened, which is energy wasting, is solved. Moreover, the network connectionis carried out through an LoRa node module, and the control is carried out by a mobile phone through the internet, so that the problem that the plant wall not being based on the intelligent home system cannot be remotely controlled, which does not facilitates the water replenishing and irrigation of the plant wall when the family is not at home for a long time, is solved.

The invention discloses a gastrodia elata planting tank with a function of keeping moisture dynamic balance. The gastrodia elata planting tank comprises a tank bottom and tank walls, capillary materials are laid on inner sides of the tank walls and the tank bottom, the tank walls include inner walls and outer walls, a water cavity and a nutrient solution cavity are arranged between the inner wallsand the outer walls and at opposite positions, and upper portions of the water cavity and the nutrient solution cavity are provided with liquid inlets. A plurality of permeating pieces penetrating the inner walls to connect with the capillary materials are arranged in each of the water cavity and the nutrient solution cavity. By integral application of the capillary water absorption principle, water in the water cavity and nutrient solution in the nutrient solution cavity are transferred to the capillary materials under the action of the permeating pieces, and moisture is diffused on the capillary materials and then transferred to a culture medium; since a capillary water absorption process is slow and is almost paused when the culture medium is sufficient in moisture, the moisture of theculture medium is in a dynamic balance state, the humidity of the culture medium is constantly kept in a range suitable for gastrodia elata and halimasch, and accordingly growth of halimasch and gastrodia elata is remarkably promoted.

The invention provides a PVA drainage system for rapid drainage of a sludge storage yard and a using method thereof. The PVA drainage system is composed of hollow main pipes, double-layer water absorption pads, fixing pins and vacuum pump joints. The PVA drainage system is used in a fast drainage project of a high-water-content sludge pile field and is laid in a storage yard, and the water in thesludge can be quickly discharged by utilizing the capillary water absorption effect of the water, is collected in a main pipeline and is drawn out through a vacuum pump. According to the drainage system and the using method thereof, the problem of blockage of a drainage body in a conventional vacuum drainage project can be avoided, the drainage process can be carried out, and meanwhile, the capillary action of the water is utilized to absorb water and drain water; the vacuum pump is started intermittently, so that a large amount of energy consumption is saved, and the green energy-saving effect is achieved; and PVA materials belong to degradable materials and are not required to be disassembled after drainage construction is finished and can be automatically degraded in the soil body, so that the influence on the environment is small.