CN201908332U - Water supply and water saving device for collecting rainwater in greenhouse - Google Patents

Abstract

The utility model relates to a water supply and water-saving device for collecting rainwater in a greenhouse, in particular to a complementary water supply device for collecting rainwater in a greenhouse and well water. The lower edge of the sloped roof of the greenhouse with this water-saving device is equipped with a drain tank, and the position below the foundation is provided with a ditch and a water ditch. The pool is connected to the water well through pipelines, and the water well is connected to the sprinkler irrigation device of the greenhouse. The utility model is convenient to use, has less investment, saves water resources, and has sufficient water supply.

Description

A water-supply and water-saving device for collecting rainwater in a greenhouse

technical field

The utility model relates to a water supply and water-saving device for collecting rainwater in a greenhouse, in particular to a complementary water supply device for collecting rainwater in a greenhouse and well water.

Background technique

Water resources are precious. Although China is rich in water resources, the per capita amount is very small. Different regions, especially provinces such as Yunnan, have a lot of water shortages, so effective use of water resources is a very important task.

Greenhouses are facilities used by farmers to maintain a growing environment for crops, and their roofs are made of PC panels. In rainy days, rainwater accumulates on the roof, and the water is not easy to drain immediately. Rainwater accumulates on the roof for too long. On the one hand, it will put pressure on the roof, and the ventilation type is not good. On the other hand, it will increase the humidity inside the greenhouse and change the crop quality The growing environment is very unfavorable to crop growth. The existing greenhouses are not equipped with rain-collecting engineering facilities, which wastes a lot of precious water resources and affects the growing environment of greenhouse crops, so it is necessary to make technical improvements.

Contents of the invention

The technical problem to be solved by the utility model is to provide a water-supply and water-saving device for collecting rainwater in a greenhouse, which is easy to use, requires less investment, and has sufficient water supply.

The technical solution adopted to solve the technical problems of the utility model is: the lower edge of the sloped roof of the greenhouse is equipped with a drain tank, the position below the foundation is provided with a trench and a water ditch, the drain tank is connected to the water ditch, and the water channel passes through the pipeline in turn. The sedimentation tank and the storage tank are connected, and the storage tank is connected to the water well through pipelines, and the water well is connected to the sprinkler irrigation device of the greenhouse.

A screen filter is also arranged on the pipeline between the sedimentation tank and the water storage tank, so that the mud, sand and scum in the pipeline can be filtered out, and the blockage of the sprinkler irrigation device can be avoided. The lower part of the screen filter is equipped with a sewage outlet, which can discharge the accumulated mud, sand and scum. The heights of sedimentation tanks, storage tanks and water wells are lowered in turn, making full use of gravity to transport water to achieve the purpose of energy saving.

Ball valves are installed on the pipelines before the entrance of sedimentation tanks, screen filters, storage tanks and water wells to control the collected rainwater; pressure gauges are installed on the pipelines before the entrances of sedimentation tanks, storage tanks and water wells , you can know the water storage situation of each section through the pressure gauge.

The gutter is set around the foundation of the greenhouse, and its position is higher than the ditch. The gutters are collected into the gutter through pipelines. The rainwater outside the roof of the greenhouse can enter the gutter and then flow into the ditch to make full use of the rainwater around the greenhouse. the goal of.

When it rains, the rainwater accumulated on the roof of the greenhouse flows into the drain tank, the water pipe is installed at the end of the drain tank, and the bottom of the outlet of the water pipe is connected to the gutter. Most of the water on the roof flows into the drain tank, a small part of the water flows on the ground, and this part of the rainwater flows into the ditch under the foundation. The trenches are kept parallel, and the trenches are lower than the foundation. When it rains, rainwater flows into the gutter, and water pipes are installed on the side of the gutter, and part of the water in the gutter flows into the water pipe. The water in the water pipe passes through the flange in turn, and the ball valve enters the water sedimentation tank, and the water sedimentation tank deposits the large particles of impurities contained in the rainwater at the bottom. After the sedimentation treatment, the water passes through the flange and the ball valve in turn and then enters the screen filter. The mesh filter further filters the water containing impurities. The outlet of the screen filter is connected with a water pipe, and the water in the water pipe enters the water storage tank through the ball valve and the flange. The excess water in the ditch is drained by other drainage measures. When it rains, part of the rainwater collected by the roof of the greenhouse is stored in the storage tank. When it is sunny, the greenhouse crops need to be sprayed with water, and the water pump motor is started to run. If there is enough water in the well, there is no need to start the storage tank device. If the water in the well is not enough, you only need to open the ball valve, and the water in the reservoir can supplement the water in the well after passing through the flange and the ball valve, and the two water supply methods complement each other. The water pump used in this device has a total head of 12 meters, a flow rate of 34.2m ³ /h, and a motor of 4kw. According to the water pump performance table, the water pump model is: 3BA-13A.

The beneficial effects of the utility model are:

(1) Save water resources. When it rains, the cistern stores rainwater. When it is sunny, the greenhouse crops need water, and the water pump motor is started. If the well water is sufficient, no cistern is needed. If the well water is not enough, then start the reservoir device. Taking the greenhouse in Kunming as an example, if the sprinkler irrigation time is 60 minutes, 34.2 tons of water will be used each time, and 70 times of sprinkler irrigation a year will save 2,394 tons of water a year. 3.5 yuan per ton of water in Kunming area, a total cost savings of 8379 yuan a year.

(2) Maintain the crop growth environment. The roof of the greenhouse is made of PC board. In rainy days, rainwater accumulates on the roof, and the water is not easy to drain immediately. If the rainwater accumulates on the roof for too long, it will put pressure on the roof on the one hand, and the ventilation type will not be good. On the other hand, it will increase the humidity inside the greenhouse and change the crops. The growing environment is very unfavorable to crop growth. The rainwater can be quickly drained by using the drain tank, so as to keep the crops recovering the best growth environment as quickly as possible.

(3) Sufficient water supply for sprinkler irrigation. In sunny and dry weather, the humidity in the greenhouse is relatively low, and the crops need water. Start the water pump motor to run. If the well water is sufficient, the water storage tank is not needed; if the well water is not enough, the water storage tank device needs to be activated. After opening the ball valve, the reservoir can supply water to the well water.

Description of drawings

Fig. 1 is the overall structural representation of the utility model

The labels in the figure represent in turn: roof 1, drain tank 2, water pipe 3, trench 4, connecting pipe 5, foundation 6, water pipe 7, pressure gauge 8, flange 9, ball valve 10, flange 11, sedimentation tank 12, flange 13, ball valve 14, flange 15, screen filter 16, sewage outlet 17, pressure gauge 18, flange 19, ball valve 20, flange 21, reservoir 22, flange 23, pressure gauge 24, ball valve 25, flange plate 26, water well 27, sprinkler irrigation device 28, water ditch 29.

Detailed ways

Referring to Fig. 1 , the lower edge of the sloped roof 1 of the greenhouse is equipped with a drain tank 2, and the position below the foundation 6 of the greenhouse is provided with a trench 4 and a water ditch 29, and the drain tank 2 is connected to the drain 29 through the water pipe 3, and the drain 29 The sedimentation tank 12 and the reservoir 22 are connected in sequence through the pipeline, and the reservoir 22 is connected with the water well 27 through the pipeline, and the water well 27 is connected with the sprinkler irrigation device 28 of the greenhouse. A screen filter 16 is also arranged on the pipeline between the sedimentation tank 12 and the water storage tank 22 , and a sewage outlet 17 of the screen filter is arranged at the bottom of the screen filter 16 . Sedimentation tanks, storage tanks and water wells are arranged in descending order, so that gravity can be fully utilized to transport water. Ball valves 10, 14, 20 and 25 are all configured on the pipeline before the entrance of the sedimentation tank 12, the screen filter 16, the reservoir 22 and the water well 27; Pressure gauges 8, 18 and 24 are also arranged on the pipeline. The ditches 4 of this water-saving device are arranged around the greenhouse foundation 6, and its position is higher than the water ditches 29, and each ditches 4 are collected into the water ditches 29 through pipelines.

Claims (4)

1. A water supply and water-saving device for collecting rainwater in a greenhouse, which is characterized in that: a drain tank is installed at the lower edge of the inclined roof of the greenhouse, and a ground ditch and a water ditch are arranged at the position below the foundation, and the drain tank is connected to the water ditch, and the water channel passes through The pipelines are sequentially connected to the sedimentation tank and the storage tank, and the storage tank is connected to the water well through the pipeline, and the water well is connected to the sprinkler irrigation device of the greenhouse. 2. The water supply and water-saving device for greenhouse rainwater collection according to claim 1, characterized in that: a screen filter is also arranged on the pipeline between the sedimentation tank and the reservoir, and the bottom of the screen filter is equipped with a sewage discharge The heights of sedimentation tanks, reservoirs and water wells will decrease in turn. 3. The water supply and water-saving device of a kind of greenhouse rainwater collection according to claim 2 is characterized in that: ball valves are all configured on the pipelines before the entrances of sedimentation tanks, screen filters, reservoirs and water wells; There are pressure gauges on the pipelines before the pool, reservoir and well inlet. 4. The water supply and water-saving device for collecting rainwater in a greenhouse according to claim 3, wherein the trench is arranged around the foundation of the greenhouse, and its position is higher than that of the trench, and each trench is collected into the trench through pipelines.

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