First, an overview of tidal irrigation system

Tide-type irrigation system is based on the principle of tidal fluctuations and the design of an efficient water-saving irrigation system, which is applicable to all types of plants cultivation and management, can effectively improve the water and nutrient use efficiency. Tidal irrigation is mainly divided into two categories, ground and bed type. Ground-type tidal irrigation system is built on the surface of a water fountain installed disk Miller, in which the distribution of a number of water holes and backwater hole; tidal bed-type irrigation system is set up in the seedbed on the layer of large areas of water Miller disk drive in Miller set aside water and backwater hole. Application, irrigation water or nutrient solution by the ratio of a good man out of the water hole so that the whole bed of the slow rise in water level and achieve the appropriate level height (known as the high tide), will be submerged cultivation bed about 2-3 cm depth; in maintaining a certain period of time (full absorption of root crops), about 10-15 minutes later, the nutrient solution by capillary action and rose to the surface of medium pot, at this time, open the back intakes, nutrient solution will be discharged back to nutrient solution pool (known as the ebb), needed to be another water-bed cultivation nutrient solution when it is sent. Tidal irrigation system with nutrient solution to adjust pH value and nutrient concentration of various equipment, in order to avoid excessive nutrient solution dirty filter media to increase system and disinfection system. Bed tidal irrigation systems have to use the special cultivation of high-frame bed, so, corresponding to the higher cost of equipment.

Second, tidal irrigation system features excellent

Tidal irrigation is a mature agricultural irrigation technology, in developed countries has been widely used to solve the irrigation well and the contradiction between supply and irrigation do not undermine the basic matrix of the "three-phase" composition, is a highly efficient high-energy agricultural technologies in China are also widely used in the development stage.

1. Efficient water-saving, fully closed system cycle, can reach 90% utilization;
2. Plant growth faster than traditional nursery seedlings per week means one days in advance to improve the utilization of facilities;
3. Plant leaves have a water film to avoid, so that leaves the light line to receive more photosynthesis, transpiration pull from the roots to absorb more nutrients;
4. Stable moisture content of the roots of media to avoid a result of capillary root around the bottom of the container edge and died of drought;
5. Easy to control relative humidity to maintain the foliage dry to reduce the use of chemical drugs;
6. Explants under the bed weed-free growth, to reduce the breeding of fungi, as very dry bed-sik;
7. Reduce the cost of management, whether it is supported by manual operation or under the management of micro-computer controller, a person in the 20-30min to be completed within 0.2 ~ 0.5ha. Plug Seedlings of irrigation;
8. Can be used, not varieties, specifications, time limits.
9. Sprinkler general ways to make the fertilizer for each plant and water absorption is not the average, the yield decreased, while the city of tidal irrigation yield 100%, and to achieve the standardization of production, a high degree of unity for each plant, the quality is guaranteed.
10. Tidal irrigation is drawn directly from the roots of fertilizer, water does not touch the surface of leaves, leaf surface glossy, so that higher prices alone, the production of 25 square meters per basin basis, such as improving the quality of每盆can sell more than 5-10 yuan, increase revenue per square meter up to 125-250 yuan, the investment is considerable.

Third, tidal irrigation system described in

High tide: in each bed has the edge on both sides of pipelines, pipeline front-end set up a pump, by the automatic irrigation controller to control nutrient solution system from fertilization through to the bed-sik. Guarantee a certain period of time to complete the high tide.

Low tide: high tide when the water pump to stop working when the plant after irrigation, followed by automatic irrigation controller will start to pump nutrient liquid returned to me in the back.

Fourth, tidal irrigation system configuration

Tidal sub-surface irrigation system configuration type bed configuration and bed irrigation system irrigation system configuration. Ground-based bed-type irrigation system is suitable for large-scale plant cultivation, seedbed-type irrigation system is suitable for smaller-scale cultivation of plants.

Irrigation ground bed design

Greenhouse size and in accordance with the requirements of owners, masonry bed. Sik bed in both directions north and south and east-west masonry trough different flow depth. At high tide, the north-south will enter the deep trench of water distribution to the bed-sik. As a result of rising water level, things will sink to the shallow water at the bottom to the pot, water intake device to set up a splash cover. Sik water bed at the same time is almost arrived at the bottom of flower pots. At low tide, the outflow of water from flower pots, as things sink to the shallow pool to the north and south directly to the deep-water tank, and then sink to the deep north-south excess fluid back to liquid returned to the box.

Seedbed irrigation system design

At each end of the bed following a nutrient solution supply boxes, boxes set up a hydraulic submersible pump to nutrition from the box to send liquid through the bed-sik to the pipeline, pump flow should ensure a certain period of time to complete the high tide. Liquid delivery pipe at the top of the device has a buffer to avoid jet wet plant leaves. When the pumps stop working, the remaining liquid through the same pipes and pumps to return to the fluid box, so that irrigation can be recovered using the same pipeline.

Seedbed type tidal irrigation system configuration, with the exception of the use of bed tidal water drainage type plate with the ground in different tidal irrigation system, the other with the ground-type tidal irrigation system configuration is basically the same.

By irrigation schemes in each of the matrix bed sik Tensiometer to greenhouse environmental control computer, the computer through the controller to control the pumps working. When the computer set to receive less than the tension value of water to start the procedure to work for a certain value. Tensiometer humidity matrix by a high-flow ceramic tip attached a computer-controlled environment of the pressure sensitive sensors, tension on the matrix in the instant of tension respond to changes in humidity.

1. System set up fertilizer application machine nutrient solution containing four boxes, an acid tank and a mixing liquid cartons.
   Mainly due to the following 4 parts.
   ① ratio according to the nutritional liquid feed box from the mixed fluid tank flow into the pumps and three valves.
   ② water under normal pressure, nutrition, the mixed acid solution together boxes.
   ③ the mixed liquid inside the liquid delivery to the irrigation district's main pump.
   ④ fertilizing machine hardware integration board from EC values, pH values and flow of input and acid pump, nutrition pumps, solenoid valves, composed of the main pump output ports.
2. Fertilization machine computer control system can optimize the growth conditions for plants to continue to provide water and plant nutrition, fertilization machine has five separate injection of fat, and from within the same greenhouse environmental control computer control. By the software program to control the water flow valve and the proportion of nutrition. The entire system by the software, hardware, transmission equipment, sensors, environmental control, irrigation control and nutrient control of the composition.
3. Fertilization system machine electromagnetic three-way valve to feed fluid from a mixing box to the exact solution box feeding liquid ratio by nutritional requirements, the solenoid valve can be realized for me to mix liquid liquid liquid return to me.
   Computer box on the outflow of fluid from the mixing of the liquid pH value, EC value and adjust the flow alarm monitoring. Growers of the ratio of the mixture can be set up in advance, the monitoring system is only in order to ensure the normal work, rather than a timely control. The ratio of the sensor system or as a result of the failure, when the ratio of the mixture over the limit set, the system on alert and take necessary measures.
   Open the valve as a result of the number of different irrigation, the system changes the flow of output, the computer through the solenoid valve for automatic control喂量nutrient solution to ensure that the ratio and flow settings.

Major equipment configuration instructions

1) Automatic fertigation unit automatically fertigation unit is controlled by the controller, which is dedicated to research and development of greenhouse horticulture industry is the experience permit stable and reliable controller. Control panel will be installed in the irrigation units, the units will be able to achieve control of irrigation. Can start the pre-set conditions to control the solenoid valve opened and closed to control the conduct of fertigation. Can be combined with time, light intensity, the cumulative conditions of light and external control conditions set to start. The machine can accurately control the EC and pH, crops will be therefore每株strict quantitative fertilizer. In the long-term practice, the growers can be very easy to grasp more of the crop for water and fertilizer usage on the information in order to be able to produce more quality products.
Automatic irrigation and fertilization system components are tested using high-quality components to ensure that they are able to work well. It can be used alone to achieve greenhouse fertigation control, but also the other greenhouse automation control equipment in order to achieve the greenhouse used in conjunction with the overall automation and control. As an additional service, we can according to the specific needs of users for the best overall design of irrigation and fertilization systems.
Fertigation automatic control system to offer customers a wide range of benefits:

• For all crops can be efficient fertilization;
• Expensive to save the amount of fertilizer and water;
• Accurate, stable and reliable;
• Compact stainless steel frame, flexible options;
• Can be "independent" units or a complete irrigation of greenhouse control
• Fertigation data can be recorded
• Cost-effective

System Configuration:

• Stainless steel rack: outer dimensions of 1.68mx 1.40mx 1.15m (hxlxb)
• Mixed tank system: mixed-tank volume of 0.2 m3
• Pumps: In the 3.5bar under the pressure of water per hour up to 12 m3, 20 m3 or 40 m3
• Rotameter (one for each of the feed tube a)
• 2 EC and pH sensors
• Electronic interface design in line with international standards
• Electronic Flowmeter
• 1 x 130 Micron Filter
• 3-readable pressure gauge

2) irrigation computer control:

• White electrical cabinet box, 8 keys
• Through the operation of common symbols
• Menu display (no need to remember that any code / coding)
• 2 line display can show letters, each line 40 characters
• 40 output signals to control external equipment
• 20 input signals to connect various sensors
• Can be recording and reporting of irrigation data, to view historical data
• Automatic background light display
• Accurate, stable and reliable EC / pH control
• Control up to 8 feeding tube
• 10 kinds of conditions to control the solenoid valve to start the open and stop
• Opening the solenoid valve control, 24 hours per cycle
• Chinese user interface

3) UV disinfection system and two types of ozone sterilizer, choose either
<br /> Ultraviolet sterilizer ultraviolet disinfection is the use of a wavelength of 225nm-275nm UV to kill micro-organisms of the strong effect on the raw water to kill micro-organisms.
Features

• Bactericidal fast, water does not change the physical, chemical nature, not to increase the scent of water, does not produce harmful halogenated methane compounds, no side effects.
• Treatment of imports of high-quality stainless steel cylinder used to meet the working pressure 1.2MPa, with rust-proof, high strength, non-metal ion contamination, equipment, etc. the surface easy to clean.
• UV light selected national health sector, prevention of the professional sector to identify new products, power 30W, the main line spectra of 253.7nm, the wavelength of the highest rates of ultra-violet disinfection, up to 98% lower energy consumption, continuous service life of up to more than 3000 hours, and towns with reliable equipment flow.
• Modular electronic control devices, full-featured, time standards, with the use of integrated water treatment cylinder design, with easy installation, simple operation, safe, reliable, and easy maintenance characteristics.

Ozone sterilizer 1 ozone sterilizer ozone production: 5g / h Product size: 350 * 250 * 580mm (L * W * H)
Ozone concentration: air source 5-20 g / m ³ oxygen source 20-35 g / m ³
Cooling method: air-cooled Power: 220V/50Hz
Power: 160W (power need to be adjusted according to actual size)
Air Source Type: air-source and oxygen source of dual-use type, built-in oil-free air compressor, air compressor control switch independent product configuration: crystal structure of hydroxyl from ozone generator unit, all stainless steel chassis, precision ammeter, Japan 150 fans, with ozone regulator (knob type), etc.
System control interface