CN104472333A - Cultivation tank capable of high-efficiently and accurately regulating nutrient solution and using method thereof - Google Patents

Abstract

The invention provides a cultivation tank for highly efficient and precise adjustment of nutrient solution. It is a rectangular tank body. The upper edges of the two long sides are rolled inward to form a groove with a gap with the long side and an upward opening. The top of the groove is Not closed, that is, one side of the cross section of the inner volume is a G shape with an opening downward, and the other side is a left and right mirror image of a G shape with an opening downward; the two grooves formed are divided into a liquid inlet groove and a liquid outlet groove A short side of the tank body is provided with a liquid inlet and a liquid outlet respectively connected to the liquid inlet pipe and the liquid outlet pipe, respectively aligned with the liquid inlet groove and the liquid outlet groove, and the liquid inlet is slightly higher than the liquid outlet. The invention also provides a method for using the cultivation tank for highly efficient and precise adjustment of nutrient solution. Using the cultivation tank of the present invention, the circulation process of the nutrient solution in the cultivation tank changes from the original longitudinal flow along the length to the horizontal flow along the width, the flow distance is greatly shortened, and the entire cultivation tank is poured with nutrients in the form of a water curtain along the edge of the liquid inlet groove liquid, which can evenly replace the nutrient solution in a short time.

Description

A cultivation tank for highly efficient and precise adjustment of nutrient solution and its application method

technical field

The invention relates to the field of facility cultivation, in particular to a cultivation tank for efficiently and precisely regulating nutrient solution and a method for using the same.

Background technique

As one of the main methods of soilless cultivation, hydroponics is widely used in the field of vegetable and flower production because of its outstanding advantages of avoiding continuous cropping obstacles, precisely controlling the composition of nutrient solution, facilitating stubble arrangement, and saving water resources and human resources. It has become an important cultivation method in the plant factory of multi-layer three-dimensional cultivation.

Hydroponics usually includes pipe cultivation, nutrient liquid film cultivation, deep liquid flow cultivation, etc., all of which provide recyclable nutrient solution to plants to ensure their normal growth. Although the cultivation devices (pipes, tanks, etc.) used in the above various hydroponic methods are not the same, in order to ensure the circulation of the nutrient solution, it is necessary to configure the liquid inlet and outlet. At the same time, in order to reduce the failure rate, it is convenient for pipeline design and laying, to minimize construction and maintenance costs. Usually, liquid inlet/outlet ports are set at both ends of a cultivation tank/pipe unit. The nutrient solution flows in from the inlet. When the liquid level exceeds the set height, the nutrient solution flows out from the outlet. . This design is only suitable for short and small nutrient solution tanks/tubes. When the nutrient solution tanks/tubes are longer, have a larger area, and have a larger nutrient solution capacity, when the nutrient solution flows in from the liquid inlet in this circulation mode, due to For the purpose of protecting the plant root system, the flow rate and flow rate should not be too large, which will cause the nutrient solution to flow out of the liquid outlet at the other end after a long time, and the overall circulation of the nutrient solution is not smooth; The nutrient solution level in the nutrient solution tank/pipe is still higher, and at this moment, the nutrient solution still continues to flow out from the liquid outlet. The hysteresis of the response of the design to the regulation and control of the nutrient solution has caused great difficulties in the control of the nutrient solution, and it is impossible to timely and accurately adjust the parameters of the nutrient solution in a large number of nutrient solution tanks/pipes.

Contents of the invention

Aiming at the problem of hysteresis in the control of nutrient solution in the prior art, the present invention aims to provide a cultivation tank for highly efficient and precise regulation of nutrient solution and its use method.

The cultivation tank for efficiently and accurately adjusting the nutrient solution of the present invention is a rectangular tank body, and the upper edges of the two long sides are rolled inward to form a groove with a gap with the long side and opening upward, and the top of the groove is not closed , that is, one side of the cross-section of the involuted part is a G shape with an opening downward, and the other side is a left and right mirror image of a G shape with an opening downward; the two grooves formed are divided into a liquid inlet groove and a liquid outlet groove. A short side of the tank body is provided with a liquid inlet and a liquid outlet respectively connected to the liquid inlet pipe and the liquid outlet pipe, respectively aligned with the liquid inlet groove and the liquid outlet groove, and the liquid inlet is slightly higher than the liquid outlet.

Wherein, the G is G in Arial font.

Wherein, the upper edge of the cultivation groove can stably place the cultivation board.

Wherein, in the cultivation groove, the intersection angles between the two long sides and the bottom surface are rounded.

Wherein, the cultivation tank is an integrally formed cultivation tank.

Wherein, the material of the cultivation tank is preferably PVC.

Use the method for the cultivation tank of the present invention to efficiently and accurately regulate the nutrient solution, comprising the following steps:

Start to pour the nutrient solution so that it flows into the liquid inlet groove along the liquid inlet pipe through the liquid inlet. When the liquid inlet groove is filled, the nutrient solution flows down the bottom of the cultivation tank in the form of a water curtain through the edge of the liquid inlet groove. When the liquid level rises to the edge of the liquid outlet groove, the nutrient solution is poured into the liquid outlet groove in the form of a water curtain for a short time, and flows out from the liquid outlet pipe through the liquid outlet. At this time, the infusion of the nutrient solution is stopped.

The invention also provides the application of the cultivation tank for highly efficient and precise adjustment of nutrient solution in plant cultivation.

The present invention also provides the application of the method of using the cultivation tank for high-efficiency and precise adjustment of nutrient solution of the present invention in plant cultivation.

Using the cultivation tank for highly efficient and precise adjustment of nutrient solution of the present invention has the following advantages:

1. The circulation process of the nutrient solution in the cultivation tank changes from the original longitudinal flow along the length to the horizontal flow along the width, the flow distance of the nutrient solution is greatly shortened, and the entire cultivation tank is poured with the nutrient solution in the form of a water curtain along the edge of the liquid inlet groove at the same time , can evenly replace the nutrient solution in a short time.

2. In the prior art, in order to ensure that the nutrient solution in the cultivation tank is fully replaced, the liquid inlet and outlet must be located at both ends of the cultivation tank respectively, which makes the laying of the liquid inlet pipe and the liquid outlet pipe difficult, especially when the cultivation tank is relatively large. When the nutrient solution pool is long and the nutrient solution pool is located in the long direction of the cultivation tank, one of the liquid inlet pipe and the liquid outlet pipe needs to be as long as the tank to connect the nutrient solution pool and the cultivation tank to form a loop. The present invention can fundamentally solve this problem, and the nutrient solution can enter and exit from the same short side to complete the complete and efficient replacement of the nutrient solution.

3. The intersection angles between the two long sides of the cultivation tank and the bottom surface are rounded corners, and the nutrient solution flowing down will be affected by the force flowing to the opposite side under the action of the rounded corners.

4. The cultivation tank unit is integrally formed to minimize the workload of assembly and welding and the probability of seam leakage during future use.

5. The cultivation tank is made of PVC, which is easy to bend and form, has good stability, is light, and has low load-bearing requirements for the cultivation frame.

Description of drawings

Fig. 1 is the cross-section of the cultivation tank of Embodiment 1 of the present invention.

Fig. 2 is a schematic diagram of the short side structure of a cultivation tank (with a cultivation board) in Embodiment 1 of the present invention provided with a liquid inlet and a liquid outlet.

Wherein, 1 is the long side, 2 is the cultivation plate, 3 is the liquid inlet groove, 4 is the liquid outlet groove, 5 is the intersection angle between the long side and the bottom surface, 6 is the liquid inlet, 7 is the liquid outlet.

Detailed ways

The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

Example 1 The cultivation tank for highly efficient and precise adjustment of nutrient solution of the present invention

The cross-section of the cultivating tank for efficiently and accurately adjusting the nutrient solution of this embodiment is shown in Figure 1, and the structural schematic diagram of the short side with the liquid inlet and the liquid outlet is shown in Figure 2. The cultivation tank of this embodiment is a rectangular tank body, 9 meters long, 0.6 meters wide, and 0.15 meters high; the upper edges of the two long sides 1 are all rolled inward to form a groove with a gap with the long sides and an upward opening. , the top of the groove is not closed, that is, one side of the cross-section of the inward rolling part is a G shape with an opening downward, and the other side is a left and right mirror image of a G shape with an opening downward; the two grooves formed are divided into liquid inlet groove 3 and the liquid outlet groove 4, a liquid inlet 6 and a liquid outlet 7 respectively connected to the liquid inlet pipe and the liquid outlet pipe are arranged on a short side of the tank body, and are respectively aligned with the liquid inlet groove 3 and the liquid outlet groove 4, Liquid inlet 6 is slightly higher than liquid outlet 7.

The G is G in Arial font.

The cultivation plate 2 can be stably placed on the upper edge of the cultivation groove.

The intersection angle 5 between the two long sides of the cultivation groove and the bottom surface is a rounded corner.

The cultivation tank unit is an integrated cultivation tank.

The material of the cultivation tank is PVC.

Embodiment 2 The method of using the cultivation tank of the present invention to efficiently and accurately adjust the nutrient solution

Refer to Example 1 for the high-efficiency and accurate cultivation tank for adjusting the nutrient solution used in this example.

Use the method for the cultivation tank of the present invention to efficiently and accurately regulate the nutrient solution, comprising the following steps:

Start to pour the nutrient solution so that it flows into the liquid inlet groove 3 along the liquid inlet pipe through the liquid inlet 6. When the liquid inlet groove 3 is filled, the nutrient solution flows down through the edge of the liquid inlet groove 3 in the form of a water curtain and pours into the cultivation area. On the bottom of the tank, when the liquid level rises to the edge of the liquid outlet groove 4, the nutrient solution is poured into the liquid outlet groove 4 in a short time in the form of a water curtain, and flows out from the liquid outlet pipe through the liquid outlet 7. At this time, the nutrient solution is stopped liquid.

The intersection angle 5 between the two long sides of the cultivation tank and the bottom surface is a rounded corner, and the nutrient solution flowing down will be subjected to the force of flowing to the opposite side under the action of the rounded corner.

The cultivation tank unit is integrally formed, which minimizes the workload of assembly and welding and the chance of seam leakage during future use.

The cultivation tank is made of PVC, which is easier to bend and form, has good stability, is lighter, and requires less load-bearing for the cultivation frame.

The circulation process of the nutrient solution in the cultivation tank changes from the original longitudinal flow along the length to the horizontal flow along the width, and the flow distance of the nutrient solution is greatly shortened. It can evenly replace the nutrient solution in a short time.

The nutrient solution in this embodiment can enter and exit from the same short side and complete the complete and efficient replacement of the nutrient solution, which saves labor and materials for the laying of the liquid inlet pipe and the liquid outlet pipe, and at the same time shortens the time for the nutrient solution to flow in the pipeline and improves the circulation of the nutrient solution efficiency.

The above is only a preferred embodiment of the present invention. For those of ordinary skill in the art, without departing from the technical principle of the present invention, some improvements and modifications can also be made, which should also be regarded as the embodiment of the present invention. protected range.

Claims (9)

1. the cultivating groove of an efficient fine adjustment nutrient solution, it is characterized in that, described cultivating groove is rectangular cell body, gap is all left and the groove of opening upwards to being formed with long side surface to curls inward in the upper edge of two long side surfaces, groove top is not closed, namely the cross section side of inner wrap portion is in the G type that Open Side Down, the left and right mirror image of opposite side in Open Side Down G type; Two grooves formed are divided into feed liquor groove and fluid groove, and be provided with the inlet and liquid outlet that connect feed tube and drain pipe respectively in cell body short side, aim at feed liquor groove and fluid groove respectively, inlet is a little more than liquid outlet.

2. the cultivating groove of efficient fine adjustment nutrient solution as claimed in claim 1, it is characterized in that, described G is the G of Arial font.

3. the cultivating groove of efficient fine adjustment nutrient solution as claimed in claim 1, is characterized in that, described cultivating groove, along steadily placing cultivation plate on it.

4. the cultivating groove of efficient fine adjustment nutrient solution as claimed in claim 1, it is characterized in that, described cultivating groove, the angle of cut of two long side surface and bottom surface is fillet.

5. the cultivating groove of efficient fine adjustment nutrient solution as claimed in claim 1, is characterized in that, the integrated shaping cultivating groove of described cultivating groove.

6. the cultivating groove of efficient fine adjustment nutrient solution as claimed in claim 1, it is characterized in that, the material of described cultivating groove is PVC.

7. use the method for the cultivating groove of efficient fine adjustment nutrient solution described in any one of claim 1-6, it is characterized in that, comprise the steps:

Start to pour into nutrient solution, it is made to flow into feed liquor groove along feed tube through inlet, after feed liquor groove is filled, nutrient solution to flow down with cascade form through feed liquor recess edge and is filled on cultivating groove bottom surface, treat that liquid level is promoted to and did not have fluid recess edge, nutrient solution, to pour into fluid groove in the cascade form short time, flows out from drain pipe through liquid outlet, now stops perfusion nutrient solution.

8. the application of cultivating groove in plant cultivation of efficient fine adjustment nutrient solution described in any one of claim 1-6.

9. the application of using method according to claim 7 in plant cultivation.