45results about How to "Reduce evaporative loss" patented technology

The invention relates to a fuel cell and aims at providing a single-chamber microbial fuel cell without a metal catalyst. The cell comprises a cell shell, cathodes and an anode. Electrolyte is water which is filled in the cell shell and contains organic matters. The anode is a titanium core carbon fiber brush made by winding titanium wires and active carbon fibers; the cathodes are carbon cloths or stainless steel meshes with both sides respectively coated by diffusion layers and catalyst layers; and the diffusion layers are contacted with the air and the catalyst layers are contacted with the electrolyte. The cathodes of the invention are composed of multiple diffusion layers and catalyst layers, reduce loss of water due to evaporation and improve stability of the electrodes. One side of each cathode directly faces the air and oxygen is directly diffused to the catalytic surface of the cathode without additional air supply devices and driving force, thus greatly lowering the operation cost and improving the stability. The catalytic materials of the cathodes are active carbons featuring wide sources and low prices, without any metal catalyst, thus greatly reducing the constructive cost. The cell has the characteristics of simple structure, low cost and easy expansion.

The invention relates to preparation of electrodes of fuel cells and aims at providing an air cathode without a metal catalyst and a preparation method thereof. The air cathode comprises a carbon cloth or a stainless steel mesh as a base material. Both sides of the base material are respectively coated by diffusion layers and catalyst layers, wherein the diffusion layers are contacted with the air and the catalyst layers are contacted with electrolyte. The cathode of the invention is composed of multiple diffusion layers and catalyst layers, reduces loss of water due to evaporation and improves stability of the electrodes. One side of the cathode directly faces the air and oxygen is directly diffused to the catalytic surface of the cathode without additional air supply devices and driving force, thus greatly lowering the operation cost of the cell and improving the stability. The catalytic materials of the cathodes are active carbons featuring wide sources and low prices, without any metal catalyst, thus greatly reducing the constructive cost. The air electrode has the characteristics of simple structure, low cost and easy expansion and can be used for producing microbial fuel cells with high properties and low costs and simultaneously purify waste water.

The invention discloses a garden greening water storage device. The garden greening water storage device includes a water storage tank and a water collection hopper, wherein an opening is formed in the upper end of the water storage tank, and the lower end of the water collection hopper is communicated with the opening in the upper end of water storage tank; a sliding plate, a baffle ring and an elastic part are arranged inside the water storage tank, wherein the sliding plate is slidably arranged inside the water storage tank in the vertical direction, the baffle ring is arranged on the innerwall of the water storage tank and is located above the sliding plate, and the elastic part is arranged inside the water storage tank and is used for driving the upper end face of the sliding plate to abut against the lower end face of the baffle ring. The garden greening water storage device has the advantages that the water storage tank is provided with the water collection hopper, after rainwater accumulates in the water collection hopper, the sliding plate inside the water storage tank descends under the effect of gravity of the rainwater, and the rainwater in the water collection hoppersequentially passes through the middle of the baffle ring and a water permeating gap and then flows into the water storage tank; after rain stops, the rainwater in the water collection hopper is reduced continuously, the sliding plate ascends under the elastic effect of the elastic part to abut against the lower end face of the baffle ring, evaporation loss of moisture inside the water storage tank is reduced, and the effects of collecting and utilizing rainwater resources are achieved.

A device and method for detecting a signal from an analytical sample is provided. The device comprises a platen with a first and second surface, a number of collection structures extending from the second surface. Each collection structure has a capillary channel running along a common axis as the collection structure from the platen to a terminal end of the structure. Within the capillary channel are sample analytes of interest. On the first surface is disposed a number of optical elements, corresponding to each collection structure, each centered on a capillary channel. Each collection structure has a geometry that can concentrate an optical emission from within the capillary channel, along the entire length of the capillary channel, towards the first surface and optical elements, to a detection device, by means of either mirrored surface reflection or total internal reflection. The collection structure may also direct a light beam into the capillary channel. The present device can be used for non-imaging optical applications from the generated signal.

The invention discloses a water storage tank having a function of saving water resources, for garden irrigation. The water storage tank having the function of saving water resources, for garden irrigation comprises a water storing part and a control part, wherein the water storing part is used for storing rainwater; the control part is used for controlling the opening and closing of the water storing part; the water storing part comprises a tank body, a water inlet plate and a cover plate; a water inlet is formed in the upper side of the tank body; the water inlet plate is funnel-shaped and ismounted at the water inlet; the shape of the cover plate is the same as that of a cross section of the water inlet plate; the control part is mounted between the cover plate and the water inlet plate; the control part comprises a plurality of telescopic pipes, first memory alloy springs and first heat conducting blocks; the telescopic pipes are perpendicularly arranged, and two ends of each telescopic pipe are fixedly connected with the cover plate and the water inlet plate; and each first memory alloy spring is arranged in the corresponding telescopic pipe, and one end of each first memory alloy spring is connected with the corresponding first heat conducting block. Through the adoption of the water storage tank having the function of saving water resources, for garden irrigation disclosed by the invention, the effect of automatically opening and closing the cover plate is realized; in a sunny day, the side wall of the cover plate is in contact and propped against the water inlet plate, so that the inner part and the outer part of the tank body are isolated, the sealing effect is realized, and the evaporation loss of moisture in the tank body is greatly reduced.

The invention relates to an integrated peat seedling planting plate and equipment, belonging to the technical field of agricultural planting. The material and the proportion of the invention is that; 89 portions to 96 portions of peat; 0.01 portion to 0.05 portion of cross-linked polymer; 0.04 portion to 0.1 portion of pincer complex; 0.7 portion to 1.2 portion of organic potassium polymer; 0.001 to 0.06 portion of wood phenol sodium; 0.10 portion to 0.45 portion of ammonium dihydrogen phosphate; 0.10 portion to 0.46 portion of potassium sulfate and 0.08 portion to 0.25 portion of urea. The integrated peat seedling planting plate and equipment have the advantages that, integration technology is adapted to integrate and solidify the six functions of substrate, water retention, vessel, nutrient, disease control and acid regulation into one; tabular substrate has strong water saving ability, convenience, swiftness and saved labor; seedling burning, fertilizer shortage and disease spread are prevented; seedling recovering is not needed during transplanting, and root injury is prevented during transplanting; the invention is designed into a plated surface, so the invention is particularly suitable for the growth of cluster crops.

The invention relates to a short-process slag stewing water returning technology. A slag stewing tank, a sedimentation tank, a water purification tank and a water suction tank are included, wherein the bottoms of the sedimentation tank and the water purification tank are lower than the bottom of the stewing slag tank, return water of a bottom of the stewing slag tank flows to the sedimentation tank automatically, after sedimentation treatment of the water is carried out, the water flows automatically to the water purification tank, purified water is pumped to the water suction tank by a submersible pump, and the water in the water suction tank is pumped and sent to the slag stewing tank by a pump. A chemical feeding device is provided on an upper portion of the water suction tank, and grizzlies having filtration functions are provided in the water suction tank. According to the invention, a process of traditional slag hot disintegration water returning systems is shortened; the structure of the system is simple; no underground pipe gallery is required to be built; construction investment is greatly reduced; convenience in sedimentation tank dredging is achieved; problems of tube wall scaling are solved effectively; and recycling of the stewing slag water is realized.

The invention discloses a rose industrialization freeze-drying production system which comprises trays and a horizontally-arranged conveying belt. The tail end of the conveying belt is connected witha roller conveying belt. Operation flat plates are fixedly arranged on the two sides of the conveying belt. A conveying trolley suspended on a guide rail is arranged at the tail end of the roller conveying belt. The guide rail is fixed above the conveying trolley through a supporting device. A tunnel type instant freezer, a freeze dryer and a packaging chamber are further included. The head end ofthe guide rail is arranged on one side of the roller conveying belt. The guide rail is divided into two branches by a conversion device, one branch directly leads to the packaging chamber and penetrates out from a rear door of the tunnel type instant freezer, and then the guide rail leads to the packaging chamber. A branch leading to the freezer dryer is arranged at the position, between the tunnel type instant freezer and the packaging chamber, of the guide rail, roses can be fast subjected to vacuum freeze drying, nutritional ingredients can be effectively kept in the roses, and the numberof roses suffering from color change damage is reduced.

The invention discloses a dry land potato full-film covering ridge micro-furrow planting method, and relates to the technical field of dry land potato planting. The method is used for solving the technical problem that the potato yield is low, and the quality is poor due to the phenomena of lack of early-stage preparation of a planting land and limitation on potato growth in existing dry farming area potato planting. The dry land potato full-film covering ridge micro-furrow planting method comprises the steps of planting land preparation, planting land fertilization, ridging, film covering, seed preparation, sowing and harvesting. According to the method, in the potato planting process, 10-15 cm small furrows are formed in the surfaces of the tops of formed large ridges and are different from common full-film covering furrow planting, the 10-15 cm small furrows can effectively prevent rainwater on the tops of the large ridges from running off and increase the rainwater infiltration rate, and meanwhile, evaporation loss of large ridge moisture is reduced in drought weather, and the method is suitable for keeping the moisture, can reduce diseases, and promotes potato production.

The invention discloses thermal energy water lifting energy storage power generation equipment, and aims to provide water lifting energy storage power generation equipment which is high in thermal energy utilization efficiency. The thermal energy water lifting energy storage power generation equipment comprises heat pipes of waste heat of a solar thermal energy heat collector, geothermal energy, a chemical plant, a cement plant, an iron and steel plant, a thermal power plant and a nuclear power station, a steam boiler, a power generator, and grid-connected terminal equipment. The thermal energy water lifting energy storage power generation equipment is characterized in that the heat pipes communicate with a heat exchanger inside the boiler, a hot steam pressure pipe of the boiler communicates with a first water extrusion tank containing water, and a water lifting pipe of the first water extrusion tank communicates with a water storage container located in the higher position; a gravity rotating waterwheel composed of a plurality of water receiving and containing hoppers is arranged below a water outlet of the water storage container; a backwater receiving and collecting disc is arranged below the waterwheel and communicates with a second empty water extrusion tank; backwater entering the second water extrusion tank generates pressure to press hot steam into a reflux condensation meter cold water tank; the steam is condensed and leaves heat to another meter cold water tank so that water can be supplied to the boiler; an output shaft of the gravity rotating waterwheel is connected with the power generator; and the power generator is connected with an electricity load and the grid-connected terminal equipment.

Described herein is a new process for the preparation of powdered microcapsules encapsulating active volatile active ingredients, in particular a perfume or a flavour, the process being performed at room temperature. Powdered microcapsules obtainable by the process are also described. Perfuming and flavouring compositions as well as consumer products including the capsules are also described.

The invention provides a camellia mycorrhizal seedling substrate and a use method thereof. The seedling substrate is prepared from vermiculite, peat, coal cinder, mycorrhiza fungi, coco coir and a water-retaining agent; the seedling substrate is divided into two layers, the vermiculite, the peat, the coal cinder and the mycorrhiza fungi are mixed to be uniform to serve as a lower layer substrate body, and the coco coir and the water-retaining agent are mixed to be uniform to serve as an upper layer substrate body. When the substrate is used, the lower layer substrate body is laid first, camellia seedlings are planted in the lower layer substrate body, then the upper layer substrate body is laid, watering is conducted thoroughly, and water is supplemented in time. The substrate is good in physical and chemical property and low in cost, the substrate preparation and use steps are few, the cultivated camellia seedlings are high in survival rate and less in disease and pest damage, plantsgrow strongly, and the requirements of commercial camellia seedlings are met.

The invention discloses a farmland water conservancy irrigation device. The farmland water conservancy irrigation device comprises a water storage tank, an outer guide rail, a first water guide pipe, a sealing sleeve, a second water guide pipe, a limiting hole, a movable sliding block, movable wheels, inner guide rails, a third water guide pipe, a sealing bearing, an inner threaded sleeve, an outer threaded sleeve, a mounting supporting plate, a vertical water guide plate, a vertical water guide cavity, a lower traction pump, a water spraying guide pipe, a nozzle, an upper traction pump and a transverse water guide plate. An upper end of the upper traction pump communicates with a transverse water guide cavity through a sixth water guide pipe, a spraying disk communicating with the transverse water guide cavity is fixedly arranged on one side, away from the vertical water guide plate, of a lower end of the transverse water guide plate, and a height adjusting supporting block is fixedly arranged at the other end, provided with the spraying disk, of the transverse water guide plate. Compared with the prior art, the farmland water conservancy irrigation device has advantages that water evaporation loss is reduced, water can be stored, water replenishing is simple and convenient, and water spraying and storage devices are separately stored.

The invention provides a rapid sampling device for a water stable layer. The rapid sampling device comprises: a base plate, wherein a circular sampling hole is formed in the center of the base plate; and a handheld electric pick and a pick shovel, wherein the pick shovel is installed on the handheld electric pick, a shovel head is arranged at the lower end of the pick shovel, a circular arc matched with the edge of the sampling hole is formed in the outer side wall of the shovel head, and a sampling notch is formed in the inner side wall of the shovel head. According to the invention, pedal plates are additionally arranged on the two sides of the base plate to serve as pedal fixing handrails and matched with foot nails of the base plate, so that the position of a test pit is fixed, and the base plate is prevented from deforming and moving in the punching process and affecting the test; and the handheld electric pick is used as a power source, the pick shovel is improved, the original pick shovel is manufactured by forging a steel bar, is irregular in the shape, and is low in chiseling efficiency, the original pick shovel is improved into an arc crescent shape, and the pick shovel is installed on the handheld electric pick for chiseling, so that the original manual chiseling is replaced.