730results about How to "Good water saving effect" patented technology

The invention relates to a water-saving type pipe joint; the water-saving type pipe joint has the following design key points that: a through hole of a pipe body is provided with a clapboard with the same matrix; the clapboard is provided with a limber hole for a valve core to penetrate; the valve core has a T shape; a joint part of vertical section and transverse section of the T shape is provided with a sealing ring; the vertical section of the T shape valve core penetrates the limber hole; the sealing ring seals the joint part of the vertical section and the transverse section of the T shape valve core of the limber hole of the clapboard; the vertical section of the T shape valve core penetrates out one section of the limber hole and is sleeved with a spring; the external thread of the section is connected with a screw hole in the central part of a valve sheet; and the radial surface of the valve sheet is provided with a valve hole so that water can flow in. The method is feasible and solves the technical problems that the prior similar product has poor water conservation and unreasonable structural design. A manufactured product has little material consumption, obvious water-saving effect and dual functions of the pipe joint and the valve.

The present invention discloses a washing device and an operation method. The device includes a box body, a water tank is arranged within the box body, and a cavity is formed between the boxy body and the water tank. Pluralities of air-entrapping spray-heads are distributed at the bottom of the water tank. Water inlets of the air-entrapping spray-heads are connected to an internal circulation water pump, a water inlet of the internal circulation water pump is connected to the water tank, and the internal circulation water pump is located within the cavity below the water tank. A multi-porous separation plate is arranged above the air-entrapping spray-heads in the water tank, and a sewage draining outlet is arranged at the bottom of the water tank. The device can effectively reduce labor intensity, improve the washing efficiency, save and utilize water resources, maintain the nutritional value and hygienic indexes of fruits and vegetables, and meet the demands of people for fresh and high-nutritional fruits and vegetables.

The invention discloses an intelligent cultivation method for bean sprouts. An incubator, a water tank, a base and a control system are provided, and the method comprises the following steps of control on heating, humidification and illumination. For the heating and humidification control, PID closed-loop control is adopted; a temperature and humidity sensor is installed in the incubator; a single chip processes a detected temperature and humidity signal and outputs a corresponding control signal; and a temperature and humidity control module realizes accurate control on the temperature and humidity in the incubator. The heating method is characterized in that air is directly heated by a heating rod, water is atomized by an ultrasonic atomizer, and then the hot air and the water mist are mixed by a fan at the bottom of a heating room and delivered mixture to the incubator. The illumination control is realized by using an LED lamp. The invention solves the problems of non-uniform spraying, excessive waste water, slow heating, high energy consumption, inaccurate temperature and humidity control and the like in the existing bean sprout cultivation device, and is applied to the devices such as a bean sprout incubator, a seed incubator, a household bean sprout growing machine, etc.

The invention discloses a saline-alkali soil improving method by engineering-chemistry-biology-desalination and water conservation-information technology. The saline-alkali soil improving method includes steps of S1, lowering salt content in the saline-alkali soil to be treated gradually by engineering measures and isolating and discharging soluble salt in the soil; S2, reasonably utilizing water resource of the saline-alkali soil to be treated by brackish water desalination technology; S3, reasonably irrigating the saline-alkali soil to be treated by water-saving irrigation technology; S4, online detecting the saline-alkali soil to be treated by information technology; S5, improving chemical components of the saline-alkali soil to be treated by chemical measures; S6, finally improving the saline-alkali soil to be treated by biotechnology measures. The saline-alkali soil improving method provides a feasible, economic and efficient scheme for improving the saline-alkali soil in coastal regions, improvement time is short, effect is good and no backflow is caused after improvement.

The invention discloses a cleaning cocoon cooking method. The method comprises the processes of: external vacuum infiltration, cooking by an automatic cooker, cocoon steaming, and adjustment, wherein a reelability agent originally used for cocoon cooking replaces a penetrating agent for penetrating to be used in the external vacuum infiltration cocoon cooking process; in the condition with 30-50 DEG C water temperature, the reelability agent can only have infiltration function with water to be adsorbed between cocoon layers and on the surface of a cocoon filament; and in the cocoon cooking process and in the condition with 60-80 DEG C water temperature, the reelability agent can promote the cocoon filament sericin dissolution to reduce adhesion between cocoon filaments for the smooth dissociation of the cocoon filaments, so that the reelability agent has the reelability function in the cocoon cooking process. One chemical preparation achieves two functions, the chemical preparation is less and easily controlled in dose, process is simple, operation is convenient, and production cost is low.

The invention relates a collection and treatment system of domestic sewage and rainwater in residential community, which is used for roof plantation. The invention includes construceted wetland, underground sewage and rainwater collection and treatment structure, roof irrigation device and planting soil layer. The pinciple of the underground sewage and rainwater collection and treatment structure seperated into reservoir, wetland clear water tank and sewage well, is: firsti, the sewage after treatment flows through pipes into the reservoir which has a pump arranged on its base; second, the sewage is lifted by the pump to constructed wetland which filters the sewage; then, the filtered sewaged flows into wetland clear water tank which also has a pump arranged on its base and has pips connected with the roof. Theroof irrigation device includes a plurality of roof clear water boxes arranged on the roof, outlet pipes, and drip irrigation pipes. The planting soil layer is layed averagely on the roof in a manner that a soil layer with a soil layer depth of 10cm and a soil bulk density of 120kg / m2, is layed on a geotextile layer layed on a water storage board which is layed on a thermal insulation board.

The invention relates to multilevel circulating cleaning equipment for solar cell silicon wafers, which comprises a first rinse tank, a transition rinse tank, a final rinse tank, a water inlet valve, a filter treating pond, a circulating pump, partition embankments and a sewage sump. The partition embankment is arranged in each rinse tank; each rinse tank is divided into a cleaning room and a sewage overflowing room; cleanout fluid overflowed from a rear-way rinse tank is pumped by the circulating pump and is used as cleanout fluid of a front-way rinse tank; sewage overflowed from the outside of the upper surface of each rinse tank flows into the filter treating pond through a flexible pipe for secondary treatment; and the treated cleanout fluid is conveyed to the first rinse tank through the circulating pump and is used as cleanout fluid of the first rinse tank. The actual use of an applicant proves that by the adoption of the multilevel circulating cleaning equipment for the solar cell silicon wafers, the water consumption of cleaning the silicon wafers per ton is only 3 tons, and compared with the conventional cleaning machine, the multilevel circulating cleaning equipment saves water by over 5 tons; and thus the multilevel circulating cleaning equipment has obvious water-saving effect and avoids water resource waste caused by independent water service of the rinse tanks.

The invention discloses an environment-friendly water-free closestool and relates to the technical field of sanitary equipment and other accessories for toilets. The water-free closestool comprises aclosestool housing and a closestool cover, wherein the closestool housing and the closestool cover are connected rotatably. The water-free closestool also comprises a cylindrical structure fixed in the closestool housing, wherein a liquid buffering groove is formed in the upper side of the cylindrical structure, a solid treatment cylinder is formed on the lower side of the cylindrical structure, the liquid buffering groove is provided with a liquid draining port, a smashing device is arranged in the solid treatment cylinder, a drying and heating device is arranged on the outer side of the solid treatment cylinder, a control module controls the drying and heating device and a smashing device to work, a solid discharging pump is controlled to work after excrement heating, drying, sterilization and smashing treatment, and powdery dried excrement is discharged out of a solid discharging pipe. The closestool does not use domestic water, water resources are not wasted, and a water-saving effect is good.

The invention relates to a dripping arrow irrigation automatic control system, a manufacturing method of the dripping arrow irrigation automatic control system and a dripping arrow irrigation method. The dripping arrow irrigation automatic control system consists of a reservoir, a water pump, a water level sensor, a conveying main pipeline, a fertilization pipeline, a conveying branch pipeline, a temperature sensor, a main controller, a start controller, a water taking pressure gauge, an electromagnetic valve, a suction and exhaust valve, a fertilization control valve, a filter and a water conveying pressure gauge; the reservoir is arranged at the initial end of the conveying main pipeline; the water level sensor is arranged in the reservoir; the water level sensor is connected with the main controller; the water pump is arranged on the reservoir and is used for drawing a water source in the reservoir; the water taking pressure gauge, the electromagnetic valve, the suction and exhaust valve, the fertilization control valve, the filter and the water conveying pressure gauge are sequentially arranged on the initial section of the conveying main pipeline; the fertilization control valve is mounted on the initial section of the conveying main pipeline; a fertilizer is uniformly conveyed into the conveying main pipeline by the fertilization conveying pipeline. The dripping arrow irrigation automatic control system is scientifically designed, has a reasonable structure and uniform flow, is reasonable in system arrangement, is stable in pressure in the pipelines, has wide applicability and has a wide application range; a dripping arrow takes effects of a water dropper and an insertion arrow, has a small size and high intensity, has powerful use functionality and is convenient to mount and use.

The invention relates to a semi-opening greenhouse cultivation technology for a peach tree in a low-latitude plateau area. The technology is characterized in that a greenhouse frame is arranged on one surface of a greenhouse; a layer of inspect proof nets and a layer of heat preserving quilts sequentially cover the frame; the heat preserving quilts are controlled by a contracting and stretching bracket to the contracted and stretched, and therefore, the temperature in the greenhouse of the peach tree can be controlled in different growth periods and under the changeful air temperature condition at the low-latitude plateau area; meanwhile, the technologies like the water and fertilizer control technology and the special fruit bag utilizing technology are adopted, thus the damage factor under the natural condition is removed, and the natural growth state of the peach tree is remained to the maximum; the applied pesticide is about 20% that under the common planting condition, the applied chemical fertilizer is about 30% that under the common planting method, the water irrigated is about 40% that under the common planting condition, and the output is more than 150% that under the common planting condition; in addition, the peach quality is far more than that of common peach; the market price is the peach is more than 5 time that of the common peach.

The invention discloses an efficient water-saving cultivation method for rice in cold areas. The efficient water-saving cultivation method is characterized by comprising adopting an intermittent circulating alternate irrigation method at different growth periods of the rice, performing irrigation to a water-layer upper limit, then performing natural soil drying; during the period, if the rainfall is stored to the rain-storing upper limit and the lower limit of the soil water content of each growth periods is reached, repeatedly irrigating to the irrigation water-layer upper limit, performing circulating alternation, and performing corresponding fertilization, insecticide spraying and weeding to be matched with each growth period until harvest. The efficient water-saving cultivation method is extremely remarkable in water-saving yield-increasing effects. According to test statistics, the average net quota for conventional shallow irrigation per 2000 / 3 m2 is about 390 m3, the water-saving irrigation amount per 2000 / 3 m2 is 240 m3, the water-saving amplitude is 38%, the yield is increased by 25kg per 2000 / 3 m2, the yield increase amplitude is 5%, the cost is reduced by 100 RMB per 2000 / 3 m2, and moisture production efficiency and irrigation water utilization efficiency are respectively improved by 44% and 87% in comparison with conventional irrigation.

The present invention provides a preparation method of bamboo pulp, belonging to the field of chemical fiber technology. Said method includes the following steps: obliquely cutting bamboo strip material into the form of horseshoe, the chip cross-section spacing distance is 20-40 mm, then prehydrolyzing the prepared bamboo strip, adding alkali and cooking, removing sand, making one-stage or two-stage bleaching treatment, making the bleached pulp material undergo the processes of acid treatment, concentration and pulping so as to obtain the invented bamboo pulp. Said bamboo pulp can be used for producing viscose fibre.

The invention relates to step-type multi-step silicon material cleaning equipment. The step-type multi-step silicon material cleaning equipment comprises primary cleaning tanks, transitional cleaning tanks, a final cleaning tank, a water inlet valve, a filtration treating pond, a circulating pump, a separation bank and a foul solution tank, wherein each primary cleaning tank and transitional cleaning tank are provided with a separation net-like plate respectively; each cleaning tank is divided into a cleaning chamber and a foul solution overflowing chamber by the separation net-like plate; the cleaning solution flowing from the next cleaning tank flows into the previous cleaning tank to be used for supplementing the cleaning solution; sewage floating on the upper surface of the foul solution overflowing chamber flows into a filtrate treating pond through a hose to perform secondary treatment; and the processed cleaning liquid is pumped to the primary cleaning tanks by the circulating pump to be used as the cleaning solution of the primary cleaning tanks. The actual use of the applicant proves that the step-type multi-step silicon material cleaning equipment has the advantages that: the water consumption for cleaning one ton of silicon wafer is three tons and is reduced by more than five tons compared with that of the conventional cleaner, water-saving effect is very obvious and the water waste caused by independent water use of the cleaning tanks is avoided.

The invention relates to a system and method for controlling the concentration ratio of an open type circulating cooling water system. The system for controlling the concentration ratio of the open type circulating cooling water system includes a control system and a cooling tower; a cooling tower water tank with a cooling tower water tank liquidometer is arranged below the cooling tower; the bottom of the cooling tower water tank is provided with a pollution discharge pipeline; the pollution discharge pipeline is provided with a circulating water conductivity meter, a circulating water temperature gauge, a pollution discharge electric control valve and a pollution discharge flowmeter; a water entering pipeline used for supplementing the cooling tower water tank with water is arranged above the cooling tower water tank; and the water entering pipeline is provided with a water supplementation flowmeter, a water supplementation conductivity meter, a water supplementation electric control valve and a water supplementation temperature gauge, wherein the water supplementation electric control valve is connected with the cooling tower water tank liquidometer. With the system and method of the invention adopted, automatic continuous and stable water supplementation and pollution discharge of the open type circulating cooling water system can be realized; automatic continuous on-line monitoring on the concentration ratio of circulating water can be realized; and concentration ratio fluctuation which is caused by intermittent water supplementation and pollution discharge of the circulating cooling water system can be avoided, so that the quality of the circulating water can be stabilized.

The invention discloses an integrated intelligent irrigation system based on a cloud platform. The system comprises a drop irrigation unit, a control part, a gateway and a remote monitoring platform. A soil moisture sensor and an infrared thermal imaging device are connected with a wireless communication device through a wireless network, the wireless communication device transmits photos photographed based on soil moisture and growth conditions to partition controllers through the wireless network, the partition controllers are used in cooperation with the soil moisture sensor and infrared images to calculate crop moisture crop water deficit indexes, the water deficit index information is connected with a master controller through the wireless network, multiple sets of preset values of water demand in the growth stage of crops are stored in the master controller, and the remote monitoring platform controls a water pump according to microprocessor data to work when the current water deficit indexes are smaller than the corresponding current soil humidity value in the preset values.

The invention relates to an instantly opening and heating water-energy saving water heater system consisting of a cold water pipeline (1), a water heater (2), a heat-insulating water storage device (3), a hot water pipeline (4) and a hot water terminal (5). In the system, a new idea for solving residual cold water in a pipeline is utilized, thus a problem of waste caused by idle storage of the residual cold water is solved, and an ideal use effect of instantly heating while opening is achieved; in addition, the system has the characteristics of water, energy, time and worry saving, convenience and comfortableness. The instantly opening and heating water-energy saving water heater system is simpler, more reasonable, more convenient and more economical than other traditional systems for solving the problem of the residual cold water, such as a scheme of providing a high-power electric heating water faucet or adding an assistant pipeline for recycling the residual cold water. The instantly opening and heating water-energy saving water heater system disclosed by the invention improves the comfort level of using hot water actually, is suitable for an electric water heater, a gas water heater, a solar water heater or a combined system thereof and is also suitable for a newly assembled water heater system; or by means of the instantly opening and heating water-energy saving water heater system disclosed by the invention, the performances of old systems are improved and enhanced.

The invention relates to the technical field of antifreeze equipment, in particular to an ice-driven antifreeze control device, which is composed of an ice-driven temperature sensing package and a control accessory; Head, plunger upper sealing ring, plunger lower sealing ring, plunger sealing screw or stud, plunger sealing ball, sealing water; the control accessories are valve accessories or heater accessories; the ice-driven temperature sensing package The ice-driven antifreeze drip valve and the valve accessory form an ice-driven antifreeze heater; the ice-driven temperature sensing package and the heater accessory form an ice-driven antifreeze heater. The ice-driven temperature-sensing package can automatically drive the on-off of the valve spool or the travel switch without using electricity, and then make the ice-driven antifreeze drip valve leak or make the ice-driven antifreeze heater energized and heated, which can effectively solve the problem of running water pipes in winter. Antifreeze of pump valves and water meters. Compared with the traditional antifreeze drip valve, its control accuracy and reliability are higher, the processing and manufacturing process is simpler, maintenance-free and comprehensive water-saving performance is good, which can greatly reduce the waste of water resources while effectively solving the problem of antifreeze.

The invention relates to an underground micro-irrigation device, and belongs to the technical field of agricultural water-saving irrigation. The underground micro-irrigation device disclosed by the invention comprises a groundbreaking cone and an outer tube, wherein the groundbreaking cone is arranged at the lower end of the outer tube, an advance-retreat rotating rod, a water inlet pipe, a fixator, a soil scraper and an emitter are arranged in the outer tube, the fixator is arranged in the middle of the outer tube, the advance-retreat rotating rod and the water inlet pipe are fixed in the outer tube through the fixator, the soil scraper is arranged on the lower side inside the outer tube, a sliding rail is arranged at the lower part of the outer tube, and the emitter is arranged on the sliding rail. The underground micro-irrigation device disclosed by the invention can satisfy the water demands of crops; due to adoption of underground irrigation, water can be saved, so that the root system of a crop can achieve the best water uptake effect, and the utilization efficiency of water can be improved; the device can be inserted and drawn out randomly as required, and does not need to be pre-buried underground, the position and depth of irrigation can be adjusted, and the emitter has small possibility of being jammed; and the device is convenient to carry, easy to install, good in water-saving effect, and easy to popularize and apply.

The invention relates to a channel intermittent water supplying device. The channel intermittent water supplying device comprises a main water channel, a branch water channel, a water wheel, a drivinggear, a driven gear, a cam, a follower, a gate and a connecting shaft; the water wheel is arranged above the channel bottom of the main water channel in a suspended mode and is connected with the driving gear through the connecting shaft, the driving gear is engaged with the driven gear, and the driven gear is connected with the cam in a concentric shaft mode; and the gate is in slidable fit withthe interior of a sliding groove in the side wall of the branch water channel and is in linkage fit with the cam through the follower. Compared with traditional ground irrigation, the channel intermittent water supplying device is large in irrigation uniformity and good in water-saving effect; compared with drip irrigation and sprinkling irrigation, the channel intermittent water supplying deviceis small in investment; and the device controls irrigation conveniently, connection is simple, no occupation of additional land is not required, materials are saved, and operation is easy.

The invention provides a high-yield planting method of organic lotus roots. The method particularly includes the steps that a lotus root cultivation tank is built in an appropriate cultivation field, wherein the depth of the tank is 0.6 m, the width of the tank is 1.2 m, and the length of the tank is not less than 12 m; soil, animal waste, crop straw and mineral substances are used as raw materials to prepare a special cultivation medium; in the cultivation process, the cultivation medium for production is placed in the cultivation tank, then lotus root seeds are buried in the cultivation medium at the same time, the lotus root seeds are buried and smoothly placed along the cultivation tank at the same time, and after the lotus root seeds are completely buried in the cultivation tank, the cultivation tank is irrigated until the tank is fully filled with water, wherein the three lotus root seeds form one set. By the implementation of the method, the cultivation field is divided into a plurality of blocks, nursing, harvesting and the like in production management are very convenient, the growth habit of the lotus roots is fully utilized, and the yield of the lotus roots reaches a highest level through the marginal effect of land and restoration of soil. Due to the fact that the cultivation medium with the high fertilizer efficiency is prepared, no chemical fertilizer is utilized in the whole production process, and therefore the produced lotus roots are good in taste and high in quality.

The invention discloses a high-efficiency integrated irrigation machine for water and fertilizers, comprising a reeling machine, a water-spraying walking vehicle and a water conveying pipe, and further comprising an integrated intelligent control system for water, fertilizers and pesticides; the reeling machine comprises a winch, a power transmission mechanism, a chassis and a water turbine mechanism; the integrated intelligent control system for water, fertilizers and pesticides includes a wireless soil-moisture-content sensor, a wireless transmission network, a host computer for decision making, and a lower computer for controlling an electronic control actuator, and the electronic control actuator includes an EC / PH sensor, a liquid level sensor, a fertilizer liquid pneumatic regulatingvalve, an acid-base liquid pneumatic regulating valve, a dosing metering pump and a water-pump flow control valve; the fertilizer liquid pneumatic regulating valve, the acid-base liquid pneumatic regulating valve and the dosing metering pump form a variable adjustment actuator, a reeling-machine uniform-speed recovery control structure and a water-pump stopping mechanism; and a liquid level collector and a camera are fixed on the frame of the water-spraying walking vehicle, the liquid level collector and the camera are connected to a controller through wireless transmission, and the liquid level sensor is connected with the liquid level collector.

According to the present invention, a showerhead for generating micro air bubbles includes: a body including an inflow part disposed at one end thereof for supplying shower water, and a discharge part disposed at the other end thereof for discharging the shower water supplied through the inflow part; a bubble-generating part coupled to the discharge part, and including bubble-generating tubes which expand in the discharge direction of the shower water; a fluid regulator part for opening / closing a portion of the bubble-generating tubes; and a shower part disposed in front of the bubble-generating part, and including shower holes for discharging shower water. Since the bubble-generating part for generating micro air bubbles is disposed within the showerhead, shower water including micro air bubbles can be used by simply replacing a typical showerhead with the above-described showerhead.

The invention discloses a liquid paraffin bath dyeing method of cotton fiber. The method is applied to a liquid paraffin bath for performing reduction dye dyeing on the cotton fiber, due to the fact that liquid paraffin and water are completely immiscible, both the cotton fiber and a reduction dye leuco body have the good compatibility with water, and leuco body droplets dispersing in the liquid paraffin have the intense tendency of being repellent to the liquid paraffin and compatible to the cotton fiber, and the reduction dye leuco body can be spontaneously transferred to the surface of the fiber from the liquid paraffin solution and then dispersed into the fiber. The adopted liquid paraffin is low in cost, safe, environmentally friendly and recyclable. According to the method, the dye-uptake rate of the reduction dye is greatly increased, the leuco body and oxidizing substances are isolated in the dyeing process, oxidation of the leuco body and losses of sodium hydrosulfite are effectively avoided, and the production cost is remarkably reduced. More importantly, the method greatly reduces water for dyeing and wastewater discharge and meets the development requirement for ecological dyeing and finishing.

The invention discloses a train washing water treatment and reuse method. After large particulate matters in drained water of a washing basin are removed through a mesh filter, the drained water is collected into a water inflow buffer area, returns via the bottom of a baffle, flows into an electrolytic oxidation area in a plug-flow type flow state and flows through internal electrolytic pole plates in the electrolytic oxidation area in a plug flow state of returning back and forth, and washing water is purified via single action or multiple collaborative actions of electrolytic oxidation, electrolytic floatation and electrolytic flocculation; the water subjected to electrolytic purification overflows to a produced water collection area from the upper portion of another baffle, and water in the produced water collection area is pumped into a flushing water pressurizing tank in real time via a reuse water pump for flushing. Meanwhile, the invention further discloses a device of the method. By the method and the device, water is saved by more than 50%, load of an on-board water tank can be reduced effectively, frequency that a train stops at a station for water supplementation is reduced, and contradiction of water supply and water consumption of the train is solved.

The invention relates to an environment-friendly lightweight vegetation block, belonging to environment-friendliness and resource recycling. The vegetation block is made by adding mesh-shaped organic plants, waste slurry of a paper-making factory and a growth retardant PP333 to agricultural wastes, urban organic solid garbage and Chinese medicine slag, coal ash and furfural mushroom residues of a factory and water retaining materials recovered from the garbage; and the vegetation block is mainly used for container factory lightweight seedling culture of a forestry flower industry, desertification governance, sand vegetation recovery, landslide vegetation recovery, urban roof greening, cell high-salt field greening and planting of a football field and a golf course. According to the invention, not only raw material resources is protected, the function of ecosystem balance is increased, and the efficiency of plantation is improved, but also an effective resource recycling path for urban household garbage, agriculture and forestry wastes and factory organic garbage is found out so that renewable resources are subjected to highly economic optimization combination and are more utilized effectively and reasonably.

The invention relates to a system and a method for stably controlling the concentration ratio of circulating water in a thermal power plant. The method comprises the following steps of: obtaining historical data of the water supplement quantity and pollution discharge water quantity of a circulating water system of a thermal generator set and the liquid level of a cooling tower, obtaining real-time data of evaporation air blowing loss of the circulating water system through the mode of water balance, and establishing a circulating water evaporation air blowing loss prediction model by taking the evaporation air blowing loss as a dependent variable and taking an online parameter closely related to the evaporation loss of a thermal generator set as an independent variable; carrying out a dynamic simulation test on the circulating water system to obtain a reasonable value of the concentration ratio of the circulating water system, taking the value as an input value of the circulating water evaporation air blowing loss prediction model, and calculating the real-time water supplement quantity and pollution discharge water quantity of the circulating water system for regulating and controlling the water quantity. The method can maintain the stable control of the concentration ratio of the circulating water of a thermal power plant for a long time, has an obvious water-saving effect,and can prevent scaling and corrosion of condenser pipes.

The invention provides an agricultural underground water management and control system, a manufacturing method and an agricultural underground water management and control method. The system is composed of an agricultural water management and control center, water sale mechanisms and farm irrigation machine rooms. The agricultural water management and control center is built according to an agricultural irrigation plan of one region and used for managing and controlling the whole underground water resources of one region, only one water sale mechanism is arranged for every administrative village, the farm irrigation machine rooms are built according to the agricultural irrigation plan of one region, are set according to the farm irrigation area and are connected with the agricultural underground water management and control center through GPRS communication antennas. Each farm irrigation machine room is composed of a water resource controller, a distribution board, the GPRS communication antenna, a flow meter, an exhaust valve, a check valve, a submerged pump, an underground water source well, a water taking pipeline, a water conveying pipeline, a water level sensor, a soil moisture sensor and a rainfall sensor. The agricultural underground water management and control system is scientific in design, reasonable in structure, low in cost and easy to manufacture, water resources are saved, land subsidence is inhibited, the ecological environment is improved, the ability to withstand natural disasters is improved for the agriculture, and the agriculture comprehensive production capacity is improved.

The invention provides an efficient and environment friendly irrigation method for rices in a cold region, which relates to a rice irrigation method. The invention is to solve problems of water waste, low water production efficiency, poor resistance ability and low rainwater utilization rate in the traditional irrigation method for the rices in the cold region. The method comprises the following steps of: first irrigating the rices according to water usage of 80-120 m3 / acre in a field dipping stage of the rice; and then dipping the field for 3-5 days; controlling water usage of a rice field in a rice seedling establishment stage, an early tillering stage, a middle tillering stage, a jointing-booting stage, a heading-flowering stage and a milk-ripe stage between a lower limit and an upper limit, wherein the lower limit is that the water content in the soil of the rice field is the saturated water content of 70-90%, and the upper limit is that the water depth of the rice field is 0.1-3 cm; keeping the water content in the soil of the rice field at the soil saturated water content of 70-80% in a later rice tillering stage; and supplementing once irrigation to the rice field in an early rice yellow ripening stage; and then naturally drying the rice field by air. The efficient and environment friendly irrigation method for the rices in the cold region, provided by the invention, is mainly used for irrigating the rices in the cold regions.

The present invention relates to an adaptive irrigating device for making drip-irrigation. Said adaptive irrigating device includes the following several portions: water-dripping device, shell body, water inlet, water-dripping hole, ceramic board, curved elastic film and seating cavity. Said invention also provides the concrete structure of above-mentioned every, portion, and also provides its working principle and concrete operation method.

The invention discloses a mechanical planting pattern suitable for concise melon cultivation in the open field. The mechanical planting pattern uses water-saving trickle irrigation as the basis, adopts flat ridge planting, the width of the melon ridge is 2.0m, a 30cm deep dressing furrow is arranged in the middle of the ridge for fertilizing, two trickle irrigation strips are overlaid in the deep dressing furrow, melons are sowed in the middle of the each trickle irrigation strip in single line mode, the row spacing is 80-100cm, and the fixed plant number of each mu is 334-417; 2500kg-4000kg of rotten sheep dung, 200kg of oil residue, 20kg of compound fertilizer and 20kg of 44% of triple superphosphate containing 44% of P2O5 are fertilized in each mu; 10kg of urea with 46% of N, 9kg of monopotassium phosphate and 10kg of potassium sulphate with 51% of K2O are fertilized for planned topdressing in the full duration period; during the middle and later period of field management link, 6-10 leaf pinching of main vines of the melons is performed; and branches and tendrils exceeding the melon ridge are cut off, and plant diseases and insect pests prevention are performed mechanically. The mechanical planting pattern suitable for concise melon cultivation in the open field is totally different from the existing water-saving irrigation planting pattern and obtains good fresh keeping effect.