228results about How to "Prevent evaporation" patented technology

The invention belongs to the field of preparation of sedation maintaining agents, and particularly relates to a sedation maintaining agent administrated through oral mucosa and a preparation method of the sedation maintaining agent. Bamboo leaf polysaccharide and pigskin collagen peptide are heated and mixed with chlorogenic acid and butyl acetate under the catalytic action of lanthanum nitrate, and the obtained moisturizing adhesive has biocompatibility, can be stably adhered to oral mucosa and can promote salivary secretion of children; nanoparticles obtained through freeze spray drying are uniformly dispersed in a copolymer solution containing sodium salicylate and polyacrylate, and the obtained nervous system regulator can balance excitability of sympathetic nerves and parasympathetic nerves of children; the emotion relieving composition contains modified felwort powder obtained through esterification reaction, the modified felwort powder is mixed with a moisturizing adhesive and a nervous system regulator, and the prepared sedation maintaining medicament administrated through the oral mucosa protects oral health of children in the oral operation anesthesia process, is free of irritation, improves anxiety emotion and does not affect postoperative awakening.

The invention discloses a water-retention and soil-moisture-conservation biodegradable agricultural film with a self-water-absorption structure and a preparation method of the water-retention and soil-moisture-conservation biodegradable agricultural film, and belongs to the technical field of degradable agricultural films. The agricultural film is formed by co-extruding an outer hydrophobic layer, a middle mechanical supporting layer and an inner hydrophilic layer, the outer hydrophobic layer is composed of a hydrophobic layer master batch and polyester in a mass ratio of (5-9): (1-5), and the hydrophobic layer master batch is prepared by blending and granulating polylactic acid, hydrophobic layered nanosheets and auxiliaries; the middle mechanical supporting layer is composed of a mechanical supporting layer master batch and polyester in a mass ratio of (5-9): (1-5), and the mechanical supporting layer master batch is prepared by blending and granulating polylactic acid, a bio-based filler and an auxiliary agent; the inner hydrophilic layer is composed of a hydrophilic layer master batch and polyester in a mass ratio of (5-9): (1-5), and the hydrophilic layer master batch is prepared by blending and granulating polylactic acid, super-hydrophilic nanoparticles and an auxiliary agent; the prepared agricultural film has water retention, hydrophobic and hydrophilic functions at the same time, has excellent mechanical strength and toughness, and can meet use requirements.

The invention provides a micro liquid flow dynamic weighing device. The micro liquid flow dynamic weighing device comprises a flow source, a liquid inlet pipe, a weighing container and a weighing module, the flow source outputs a liquid medium to the weighing container through the liquid inlet pipe; the weighing container is arranged on the weighing module; the device is characterized in that the weighing container is of an inner-outer double-cylinder structure, the liquid inlet pipe end is arranged in an inner cylinder, and the inner cylinder is filled with liquid in advance and is in a full cylinder state; after weighing is started, the flow source outputs a liquid medium to the inner cylinder through the liquid inlet pipe, and preset liquid in the inner cylinder overflows to the outer cylinder; and the weighing module reads the weight of the entering liquid. In the measuring process, the height of the liquid level contacted with the liquid inlet pipe is not changed, so that the influence of buoyancy correction, pressure fluctuation, surface tension change and the like caused by the change of the height of the liquid level is reduced, and the dynamic weighing accuracy is improved.

The invention discloses a refrigerant recovery device of refrigeration equipment, and relates to the technical field of refrigerant recovery, the refrigerant recovery device comprises a heat dissipation explosion-proof mechanism, the heat dissipation explosion-proof mechanism comprises an air inlet guide plate, the top end of the air inlet guide plate is fixedly connected with a heat dissipation bin, and the bottom end of the inner wall of the air inlet guide plate is fixedly connected with two sets of fans; a plurality of sets of discharging ports are formed in the side wall of the air inlet guide plate, a plurality of sets of containing grooves corresponding to the discharging ports are formed in the inner wall of the heat dissipation bin, and a plurality of sets of ventilation buffer grooves located outside the containing grooves are formed in the inner wall of the heat dissipation bin. By means of airflow and copper sheets, internal energy accumulated in the process that a refrigerant is compressed into the recycling tank is consumed, explosion caused by too high temperature of the recycling tank is avoided, and a ventilation buffer groove is located in a cavity in a heat dissipation bin and located in the outer walls of multiple sets of containing grooves, so that when collision occurs, the heat dissipation bin is prevented from being blocked. Impact force can be consumed through deformation of the ventilation buffer grooves, and the recovery tank is prevented from being damaged and broken.

The invention belongs to the field of personal care, and particularly relates to a glycoside derivative flexible liposome and a preparation method and application thereof, the glycoside derivative flexible liposome comprises a main shell material, a humectant, a wrapped raw material, an auxiliary shell material, a preservative and a solvent; the main shell material is phosphatidylcholine, and the auxiliary shell material is polyquaternium-51; the preservative is any one or more of 1, 2-hexanediol, p-hydroxyacetophenone, methylparaben, phenoxyethanol and caprylyl glycol; the moisturizing agent is butanediol; the wrapped raw material is hydroxypropyl tetrahydrofurantriol; the solvent is deionized water. According to the invention, the permeability and penetration depth of the glassine and the concentration of the glassine at a target position are improved by utilizing a flexible liposome wrapping technology, the bioavailability of the glassine is improved, and the addition amount is reduced under the condition of realizing the same tightening and anti-wrinkle effects, so that the cost is reduced.

The invention discloses a preserved egg pickling tank body with an egg turning function, and belongs to the technical field of preserved egg pickling, the preserved egg pickling tank body comprises a pickling tank, the top of the pickling tank is provided with a sealing cover, the bottom of the sealing cover is slidably provided with egg placing racks, and an inner cavity of each egg placing rack is provided with a plurality of inclined plates forming an inclined channel; a rectangular hole is formed in the end, close to the bottom of the egg placing frame, of the inclined plate, a locking structure used for locking the egg placing frame is installed at the bottom of the sealing cover, observation holes and egg taking holes corresponding to the inclined channels are formed in the two sides of the egg placing frame respectively, stop rods are installed at the positions, located at the egg taking holes, of the egg placing frame, and a first through hole and a second through hole are formed in the egg placing frame and the inclined plate respectively. A film coating channel is formed in the bottom of the egg placing frame, a push plate is slidably installed in the film coating channel, a top plate is installed at an egg placing opening in the top of the egg placing frame, and a magnetic check block is arranged at an egg outlet in the bottom of the side face of the egg placing frame. According to the preserved duck egg pickling device, the preserved duck egg pickling efficiency can be improved, the operation process is optimized, and the manpower demand and the operation difficulty are reduced.

The invention relates to the technical field of drilling fluid preparation, in particular to slim-hole horizontal well drilling fluid and a preparation method thereof.The drilling fluid is prepared from, by weight, 100 parts of clear water, 15-20 parts of bentonite, 12-15 parts of functional auxiliaries, 12-15 parts of weighting agent, 8-10 parts of stabilizer and 8-10 parts of lubricant. According to the drilling fluid, the plant ash and the activated carbon powder are subjected to gelatinization reaction after being mixed with the corn starch and are combined to generate a rich pore structure, after the functional additive is used as a raw material to prepare the drilling fluid, a granular layer can be generated on the surface of the drilling fluid by utilizing the rich pore structure and the superfine powder state of the functional additive, and in the drilling process, the surface of the drilling fluid can be effectively protected. The existence of the granular layer can destroy the liquid level tension, so that the contact area of the liquid level of the drilling fluid and air is increased, the heat dissipation efficiency of the drilling fluid is improved, and the stable performance of the drilling fluid in a high-temperature state is ensured.

The invention discloses a biological protection full-degradable soil moisture conservation agricultural film and a preparation method thereof, and belongs to the technical field of degradable agricultural films. The preparation method of the agricultural film comprises the following steps: blending and extruding titanium dioxide and polycaprolactone to prepare a PCL-coated TIO film; the PCL-coated TIO film is coated with plant essential oil, and an antibacterial and insect-proof layer is prepared; the preparation method comprises the following steps: uniformly mixing silicon dioxide, a zinc salt solution and an imidazole ligand, and carrying out ultrasonic microwave reaction to prepare a ZIF coated SiO2 hybrid; the ZIF coated SiO2 hybrid and dopamine are stirred and mixed, and an active agent is obtained; polylactic acid and layered filler are co-extruded and mixed to prepare a PLA film, and the PLA film is coated with an active agent to prepare an active insect-proof layer; the antibacterial insect-proof layer and the active insect-proof layer are compounded in situ to prepare the biological protection full-degradable soil moisture conservation agricultural film. The agricultural film prepared by the invention can simultaneously realize the functions of temperature increasing, humidity increasing, antibiosis and insect prevention.

The utility model discloses a concrete storage bin capable of automatically mixing and stirring, which relates to the technical field of concrete production, and comprises a bin body, the bin body is cylindrical, the bottom of the bin body is in height connection with supporting legs, the top of the bin body is fixedly connected with a feed hopper, the side wall of the bin body is fixedly connected with a water injection pipe, and a rotating rod is arranged in the bin body. And stirring blades are arranged on the left side and the right side of the rotating rod correspondingly, and a motor is fixedly connected to the top of the bin body. Concrete is stored in the bin body, the concrete is stirred and mixed through the stirring blades composed of the rotating shaft and the fixing plates, the contact area between the stirring blades and the concrete is large, peripheral concrete is stirred more easily, the peripheral concrete is prevented from being solidified, and the rotating rod is in transmission connection with the rotating shaft through the first gear and the second gear; and therefore, the stirring blades rotate automatically while rotating along with the whole rotating rod, stirring of different layers of concrete is enhanced, and stirring is uniform and sufficient.

The invention provides a method for preparing pyrolytic oil from waste plastics, which comprises the following steps: (S1) supplying a waste plastic raw material to a pyrolysis reactor for pyrolysis, discharging gaseous flow generated by pyrolysis through the top of the pyrolysis reactor, and condensing the gaseous flow to obtain liquid oil; (S2) carrying out decompression treatment and condensation on residual oil at the bottom of the pyrolysis reactor to additionally obtain liquid oil; and (S3) refining the liquid oil obtained in steps (S1) and (S2), in which the pyrolysis is carried out by controlling the internal pressure of the reactor in a range of greater than 1 bar to 40 bar.

The invention discloses a medicine dissolution rate testing device which comprises a base placed on the ground, a heating box is fixedly connected to the base, a plurality of evenly-distributed hole grooves are formed in the heating box, and the inner wall of each hole groove is movably connected with a dissolution cup for testing the medicine dissolution rate. The outer contour, close to the end part, of each dissolution cup is fixedly connected with a limiting ring for supporting and placing the dissolution cup on the inner wall of the hole groove, and one side of the base is fixedly connected with a rectangular shell through an external bracket; a stirring mechanism for stirring a solution in the dissolution cup and a liquid pumping mechanism for detecting the dissolution rate of a medicine in the dissolution cup are arranged on the rectangular shell, the device has the advantages that the medicine solution in the dissolution cup is quantitatively pumped and detected, and the dissolution rate testing precision is improved.

The utility model discloses a garden engineering slope stepped greening structure which comprises a soil filling layer, a building layer arranged at the upper end of the soil filling layer, a plurality of concrete blocks built on the surface of the top end of the building layer, and planting grooves formed in the top ends of the concrete blocks, and further comprises a drainage structure arranged in the building layer, rainwater can be rapidly collected through the water accumulation channel, impurities are filtered out through the first filtering well lid, when accumulated water reaches a certain degree, water can be evenly distributed into all the coagulation blocks through the water accumulation groove, the water guide pipe and the flow dividing pipe, needed water is provided for plants, reasonable utilization of the rainwater is achieved, and meanwhile, the rainwater can be recycled. When the structure is used, redundant water is drained into the drainage channel through the drainage pipe and finally drained out of the structure, damage to the structure caused by accumulated water is avoided, the utilization efficiency of water resources is improved through the design, structural damage caused by accumulated water is effectively prevented, and the stability and durability of the structure are enhanced.

The invention relates to an ethanol upgrading device and method, the device is used for upgrading ethanol containing a small amount of ethyl acetate, the device comprises a low-pressure rectification unit, a pumping unit and a high-pressure rectification unit which are connected in sequence, a variable-pressure rectification principle is adopted, azeotrope composition is changed only through a variable-pressure mode, reasonable process parameters are matched, and the quality of ethanol is improved. The purified ethanol is extracted from the low-pressure rectification unit, and the ethanol with higher ethyl acetate content is extracted from the high-pressure rectification unit, so that a large amount of ethanol is prevented from being evaporated to the high-pressure rectification unit, the energy consumption is obviously reduced, the production cost is reduced, and the economic benefit is improved.

The present invention relates to the technical field of water treatment, particularly to a pure water separation treatment apparatus, which comprises: a treatment barrel, the top wall of which is connected with a water inlet unit; the water inlet unit is connected to the water inlet unit, the water distribution units are circumferentially and uniformly connected to the water inlet unit, each water distribution unit comprises a water distribution pipe which is connected to the water inlet unit and is of a V-shaped structure, and a baffle ring is mounted at the lower end of each water distribution pipe. The plurality of evaporation units adopted by the invention can be independently taken out to be cleaned, so that the rest evaporation units can continuously perform evaporation treatment on the raw water, the evaporation equipment does not need to stop working, the continuity of the evaporation treatment of the raw water is ensured, and the treatment efficiency of a large amount of raw water is further improved.

The invention belongs to the field of monatomic materials, and particularly relates to a carbon material rich in nitrogen and monatomic zinc and application of the carbon material in catalytic activation of carbon dioxide, the content of nitrogen in the carbon material is 16.1 wt%-21.6 wt%, the monatomic zinc is distributed in the carbon material in a monatomic state, and the content of the monatomic zinc in the carbon material is 10.3 wt%-18.7 wt%. The high zinc loading capacity and nitrogen content can increase the catalytic active site density, optimize the electronic structure, and significantly improve the activity of the carbon material rich in nitrogen and monatomic zinc in catalyzing the activation of carbon dioxide.

The present invention provides a liquid metal filtering device for vacuum distillation of magnesium metal. The filtering device is installed in a vacuum distillation furnace and comprises a crucible, a filter screen and a liquid metal filter, wherein a metal melt is placed in the liquid metal filter. The filtering device provided by the present invention first filters coarse particles with a filter screen, and then filters fine particles and adsorbed gas impurities through the metal melt in the liquid metal filter. The filtering structure design significantly reduces the impurity content in magnesium vapor while avoiding the substantial inhibition of the evaporation process of magnesium metal by conventional filtering structures. The cost of using parts is low, and the quality of high-purity magnesium products is improved without significantly increasing production costs.

The utility model provides an assembly type container board room, belongs to the technical field of containers, and solves the problems that most of container board rooms are made of iron, so that the indoor temperature is very high under the exposure of sunlight in summer, and even if an air conditioner is turned on, the temperature is very difficult to reduce. The assembly type container board room comprises a container board room body, two supporting rods are slidably connected to the front end and the rear end of the upper end of the container board room body correspondingly, two sun shields are rotatably connected to the supporting rods, a driving mechanism is arranged between the supporting rods and the sun shields, cavities are formed in the sun shields, grooves are formed in the sun shields, and the driving mechanism drives the driving mechanism to rotate. A water inlet is formed in the groove, a plurality of water spraying pipes are fixed to the lower end of the sun shield, a water pump is fixed to each water spraying pipe, and a scraping plate is fixed to the sun shield. The container board room has the advantage that the temperature of the container board room is reduced under the condition of high-temperature exposure in summer.

The utility model discloses a building concrete curing facility which comprises a bottom plate, the top of the bottom plate is fixedly connected with a water tank, the top of the water tank is fixedly connected with a water pump, one side of the water pump is fixedly connected with a water pipe, one end of the water pipe is fixedly connected with a spraying device, and one side of the top of the bottom plate is fixedly connected with a vertical plate. During use, concrete is covered with a thin film, an air cylinder is started, the main pressing roller and the secondary pressing roller are driven to move downwards and make contact with the surface of the concrete, the thin film is flattened through the main pressing roller, a water pump is started, and water is sprayed to the surface of the concrete; according to the device, concrete is effectively prevented from being not wet enough, then the device is moved, the secondary pressing roller can firstly flatten the surface of the concrete for the first time, the main pressing roller effectively and conveniently flatly paves a film on the surface of the concrete, meanwhile, water evaporation is effectively prevented, and the concrete is kept in a wet state.

The utility model relates to the technical field of diluent preparation, and discloses a diluent purification and concentration device. The diluent purification and concentration device comprises a purification barrel, observation windows, a cover plate, an evaporation pipe, a drain valve, a base, a heater and a supporting frame, the purification barrel is arranged in the supporting frame in a sliding mode, a plurality of observation windows are arranged on the purification barrel in an embedded mode, the top of the purification barrel is covered with the cover plate, the middle of the cover plate is communicated and connected with the evaporation pipe, and the evaporation pipe is connected with the base. A drain valve is rotatably arranged at the lower part of the purification barrel, a base is arranged at the bottom of the purification barrel, a heater is arranged in the support frame, two support shells are arranged on the evaporation pipe, and the two support shells are jointly provided with the refrigerator. The water vapor is treated by starting the refrigerator, the water vapor in the evaporation pipe is condensed when encountering cold and is changed into a liquid state from a gas state, heat in the water vapor is consumed, and therefore the situation that the water vapor is directly discharged out of the evaporation pipe and scalds are caused is avoided.

The utility model relates to the technical field of geotechnical material's determination, the utility model discloses a cement soil permeation experiment device, including the bottom plate, the water storage jar is installed on the upper surface of bottom plate, the experiment casing is located one side of water storage jar to establish on the bottom plate upper surface, the pressurizing pump is installed on the bottom plate, the input of pressurizing pump fixed mounting has the connecting pipe, and one end of connecting pipe is linked with the bottom of water storage jar, and the output of pressurizing pump fixed mounting has the water delivery pipe, this cement soil permeation experiment device, by adopting sealing mechanism, the device can ensure the efficient sealing between experiment casing and cement soil test piece, thereby reducing the water error caused by the clearance leakage, improve the accuracy of permeation test. Due to the improvement of sealing performance, the device can ensure that the sealing effect of each test is consistent, thereby improving the repeatability of experimental results, providing more reliable data support for engineering design and construction.

The invention belongs to the technical field of cathode materials for plasma generators, and provides a silver-based material and a preparation method thereof, a cathode assembly and a plasma generator. The preparation method comprises: S1, adding silver nitrate, tin acetate, indium salt and zinc salt into water, stirring, adding sodium hydroxide solution until the pH value is 9-11, and obtaining a suspension; S2, adding polyacrylamide into the suspension, performing flocculation precipitation, and obtaining a composite precipitate; S3, heating the composite precipitate to 100-150°C in a reducing atmosphere, keeping the temperature, and then heating to 250-300°C, keeping the temperature, and obtaining a multi-component composite metal oxide silver composite powder; S4, hot isostatic pressing and sintering the multi-component composite metal oxide silver composite powder to obtain a silver-based material coarse material; S5, hot forging the silver-based material coarse material to obtain a silver-based material. The silver-based material obtained by the invention solves the problems of poor dispersion and easy ablation of metal oxides in existing silver-based materials.

The invention discloses a preparation method of a high-strength conductive CuNiSi alloy. The copper alloy material comprises the following components in percentage by mass: 0.50 to 2.50 percent of Ni, 0.30 to 1.50 percent of Si, 0.50 to 2.50 percent of Co, 0.03 to 0.10 percent of Y and the balance of Cu. The preparation method comprises the following steps of burdening, non-vacuum melting and casting, homogenization treatment, hot rolling, solution treatment, primary cold rolling, regression treatment, secondary cold rolling and aging treatment. The components of the material do not contain toxic elements, a novel covering agent is adopted, the CuNiSi alloy can be produced in a large scale in a non-vacuum atmospheric environment, a novel combined thermomechanical treatment process is combined, the prepared CuNiSi alloy is excellent in comprehensive performance such as hardness, strength, plasticity and electric conductivity, and the service life of the CuNiSi alloy is prolonged. The composite material can be used for manufacturing electric connectors, conductive elastic sheets and other components required in the fields of aviation, spaceflight, new energy automobiles, electric power, electronics and the like.

The invention belongs to the technical field of vegetation restoration, and particularly relates to a matrix particle for slope vegetation restoration in a high-altitude area and a construction of the matrix particle, and the matrix particle for slope vegetation restoration in the high-altitude area comprises matrix soil and an additive auxiliary agent, the matrix soil comprises the following components in parts by weight: 40-48 parts of planting soil, 10-15 parts of vermiculite, 20-25 parts of straw, 3-6 parts of compound fertilizer and 12-18 parts of turf; the additive auxiliary agent comprises the following components: 0.1-0.8 part of a binder, 5-10 parts of bentonite and 4-8 parts of an anti-transpiration agent, the planting soil is sandy loam, discarded soil or waste farmland soil, and the straw is at least one crop straw of rice, wheat, corn, peanuts, sweet potatoes, oilseed rape and soybeans. The substrate has high heat preservation performance, so that the freeze-thaw resistance of the substrate particles can be improved, vegetation can stably grow on the slope of the high-altitude area, the problems that the slope vegetation is short in growth cycle, low in overwintering rate and poor in vegetation recovery rate are effectively solved, and the recovery effect of the slope vegetation of the high-altitude area can be guaranteed.

The box-shaped stacked heat exchanger with fine flow channels on the through-hole wall of the pad is composed of a plurality of box-shaped heat exchange plates with inclined surfaces on the periphery stacked in sequence. In the box-shaped stacked heat exchanger, on each heat exchange plate, there is a heat exchange device for inter-wall heat exchange, and there are through holes for heat exchange medium to flow. The through holes are distributed at both ends of each heat exchange plate. There are pads on the through holes at both ends of the heat exchange plate and on the extended plane around the through holes. The pads have a certain thickness and there are through holes for heat exchange medium to flow on the pads. The heat exchange device is located in the middle of each heat exchange plate and contacts the pads located at both ends of the heat exchange plate. The characteristic is that there are fine flow channels communicating with the heat exchange device on the through-hole wall of the pad.

The utility model provides a concrete column curing device, which relates to the technical field of concrete column curing, and comprises an assembled top frame formed by connecting a connecting pipe and an atomizing spray head, an assembled bottom frame formed by a U-shaped recovery tank, a telescopic square steel connecting bracket, a bolt, a bolt hole, a curing water supply pipe and a water retaining curtain, the assembled top frame and the assembled bottom frame can be used for curing concrete columns of different sizes in a splicing and assembling mode, the telescopic square steel connecting support can be used for curing the concrete columns of different heights, and a U-shaped recycling groove and a curing water recycling opening are used for collecting, recycling and reusing used curing water. And meanwhile, the water retaining curtain facilitates collection of maintenance water and prevents rapid evaporation of water, and the defects that in the prior art, the maintenance work difficulty is large, a large amount of water is prone to being wasted, and the labor cost and the water cost are increased are overcome.

The present invention relates to the technical field of farmland operation equipment, and specifically discloses an intelligent turning device for the root soil during the growth of oil-tea seedlings, comprising a first bottom plate and a second bottom plate, wherein a plurality of circular grooves are vertically opened on the first bottom plate and the second bottom plate, wherein a plurality of fixed cylinders are fixedly connected to the bottom of the first bottom plate and the second bottom plate, wherein the fixed cylinders are located below the circular grooves, the fixed cylinders correspond to the circular grooves one by one, and the inner diameter of the fixed cylinders is the same as the inner diameter of the circular grooves, a rotating cylinder is rotatably installed in the fixed cylinder, a plurality of sliding tubes are installed in the rotating cylinder, and a plow cutter is installed on the sliding tube. The servo motor of the present invention pushes the sliding block and the lever through a threaded rod, the lever drives the rotating cylinder to rotate through a rotating column, the sliding tube drives the plow cutter to follow the rotating cylinder to rotate, the plow cutter cuts the soil in the rotating cylinder, thereby turning the soil around the roots of the oil-tea seedlings, and the servo motor can regularly turn the soil around the roots of the oil-tea seedlings according to the needs of the growth stage of the oil-tea seedlings, thereby promoting the growth of the oil-tea seedlings.

The utility model discloses an integrated plant wall distributed drip irrigation design structure, which comprises a wall frame, a drip irrigation pipe, a drip irrigation pipe, a drip irrigation pipe, a drip irrigation pipe, a drip irrigation pipe, a drip irrigation pipe and a drip irrigation pipe, the framework is connected to the wall frame, a plurality of plant grooves are formed in the framework, pressure sensors are arranged on the plant grooves, and the pressure sensors are connected with the counter; the multiple drip irrigation branches comprise a plurality of drip irrigation pipes, each plant groove is connected with one drip irrigation pipe, and water outlets of the drip irrigation pipes correspond to the pressure sensors; the water supply assembly comprises a controller, an electromagnetic valve and a water pump, the controller is electrically connected with the electromagnetic valve and the water pump, the water pump is connected with the multiple drip irrigation branches, and the electromagnetic valve is arranged on the multiple drip irrigation branches. Compared with the prior art, the plant wall drip irrigation system can solve the problems that according to an existing plant wall drip irrigation system, the drip irrigation amount of each time cannot be accurately detected, and the drip irrigation amount of each time cannot be accurately known.

The invention discloses a water-saving spray curing device for a concrete building structure, and relates to the technical field of spray curing, comprising a workbench, a lifting device is fixedly installed at the bottom of the workbench, a moving device is fixedly installed at the bottom of the lifting device, and the spray curing device is arranged on the top of the workbench, the spray curing device comprises a water storage cylinder, a pumping device, a water tank, a spraying device, a water collecting tank, a water guide pipe, a support frame, a motor, a reciprocating screw, a fixed plate, a trapezoidal plate, a threaded block, a sliding rod and a circular ring, the water in the water storage cylinder is pumped out by the pumping device, and then enters the spraying device through the water tank, and the wall is sprayed by the spraying device, the water storage cylinder is fixedly installed on the top of the workbench, the pumping device is fixedly installed on the bottom of the inner wall of the water storage cylinder, and the water tank is fixedly installed on the top of the workbench, and water resources can be saved by collecting splashed water, and water can be prevented from flowing downwards and directly causing water resources waste.

The utility model belongs to the technical field of instrument heating, and provides a heating platform for hybridization, which comprises a platform, a groove body and a heating piece, the top end of the tank body is open, and two communicating ports are formed in the side wall of the tank body; the platform is arranged at an opening in the top end of the tank body, a groove for placing a sample glass slide is formed in the platform, and a cooling fin is arranged at the bottom end of the platform; and the heating piece is arranged in the groove body. When the heating platform is used, a sample glass slide is placed on the platform, water is added into the groove body through the communicating opening, then the water is heated to a preset temperature through the heating piece, heat is transferred to the cooling fins through the water, then the heat is transferred to the platform for heating, and the hybridization step of the sample is facilitated. And when cooling is needed, heated hot water is discharged through the communication port and is changed into normal-temperature water to cool the platform, so that the cooling efficiency is high. Meanwhile, in the heating and cooling process, part of water is evaporated, a wet environment is provided for the sample, and the probe on the sample glass slide is prevented from being evaporated.

The present invention discloses a water-saving irrigation device, and relates to the technical field of water-saving irrigation. The water-saving irrigation device includes a frame, an excavating device, a feeding device, a film covering device and a driving motor. The excavating device includes two shovels, which are movably arranged in the horizontal and vertical directions, and the two shovels are both hollow and have a discharge port at the lower end; the feeding device includes two storage containers, which are respectively connected to the hollow cavities of the two shovels through feeding pipes, and the feeding pipes are provided with a switch assembly; the film covering device includes a film covering roller movably arranged in the longitudinal direction, and the film covering roller is used to cover the ground with a water-retaining film; the driving motor drives and connects the two shovels, the switch assembly and the film covering roller respectively through a transmission assembly. A series of actions of digging a pit, feeding, film covering and filling soil can be realized in an integrated manner through the driving of the driving motor and the transmission assembly. After digging the pit, water and fertilizer are added to promote plant root absorption, and film covering prevents water loss. No automatic control components are required, the structure is simple, the cost is low, and the water retention is good.