JPS62236430A - Hydroponic apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a hydroponic cultivation apparatus for use in ordinary households to cultivate vegetables and flowers.

Conventional technology The essential elements of a pot for growing plants include light, water,
There is oxygen and fertilizer, and conventional hydroponic cultivation equipment supplies oxygen to plants by introducing air into the nutrient solution.

For example, in the case of the example shown in FIG. 6, to lift the nutrient solution in the nutrient solution tank 1 to the cultivation tank 2, a pump 3 that uses the buoyancy of air bubbles is used to pump the nutrient solution into the nutrient solution during pumping. dissolved oxygen in the air. In the case of the example shown in Fig. 6, a diffuser tube 4 is installed in the cultivation tank 2, and oxygen in the air is dissolved into the nutrient solution by causing bubbles in the nutrient solution in the cultivation tank 2. moreover,
Although not shown, there is also an example in which an aspirator is used.

Problems to be Solved by the Invention All of these conventional hydroponic cultivation devices introduce air into the nutrient solution to increase the dissolved oxygen concentration in the nutrient solution, thereby supplying the oxygen required by the plants. Ta.

Therefore, in either case, a pump for air or liquid is used primarily to increase the dissolved oxygen in this nutrient solution, so a large part of the cost of the product is spent solely for the purpose of oxygen supply. It was supposed to be in use.

Furthermore, when using an air pump, there was a problem in that the pump was loud and noisy.

Furthermore, since both the air and liquid pumps used commercial power as a power source, they had very serious problems such as restrictions on where they could be used, and the risk of leakage or electric shock when used outdoors.

The present invention solves the problems of these conventional hydroponic cultivation devices,
The aim is to provide cheaper, quieter, and safer hydroponic cultivation equipment.

Means for Solving the Problems In order to solve the above-mentioned conventional problems, the present invention provides a means for removing oxygen from the air and this by using an air pump or the like in the case of hydroponic culture with exudation area provided in the nutrient solution. In addition to the method of dissolving the exudate, a method of increasing the dissolved oxygen concentration in the nutrient solution is known by adding a hydrogen peroxide solution to the nutrient solution.

Therefore, the present invention takes advantage of this fact and provides a hydrogen peroxide water supply device in place of the air pump and liquid pump of conventional hydroponic cultivation equipment, allowing the hydrogen peroxide water to be replenished at regular intervals. This allows the dissolved oxygen concentration in the nutrient solution to be easily, inexpensively, and safely maintained, while eliminating the need for expensive, noisy air pumps and The objective is to realize a hydroponic cultivation device that can cultivate plants without a liquid pump.

Hydrogen peroxide water supplied through the supply port installed outside the nutrient solution tank or cultivation tank, or through the replenisher tank, may be present in the seepage area inside the nutrient solution tank or cultivation tank, or the permeable membrane that cools the opening may Supplies oxygen to the nutrient solution in the nutrient tank or cultivation tank through the
Increase the dissolved oxygen concentration in it.

If the permeable membrane is an oxygen permeable membrane, only the oxygen in the hydrogen peroxide solution passes through the permeable membrane and moves to the nutrient solution side, and if it is a semipermeable membrane, the hydrogen peroxide solution itself diffuses into the nutrient solution. This will increase the dissolved oxygen concentration in the nutrient solution.

EXAMPLES Below, examples will be explained using FIGS. 1 to 4.

First, in FIG. 1, a seepage section 12 is installed at the bottom of a cultivation tank 11, and a replacement liquid tank 13 for storing hydrogen peroxide solution is installed at the top of the cultivation tank 11. The exudation part 12 and the replacement fluid tank 13 are connected by a tube. Therefore, depending on the thickness of the fluid replacement tank 13, it may occur once every few weeks or months.
When the hydrogen peroxide solution is replenished into the replenishing tank 13, the hydrogen peroxide solution oozes out from the seepage portion 12 into the nutrient solution in the cultivation tank 11, supplying oxygen to the nutrient solution.

Further, in the example shown in FIG. 2, a hydrogen peroxide solution replacement tank 13 is provided at the bottom of the cultivation tank 11, and a seepage portion 12 is provided in a part of the tank.

Further, a supply port 14 is provided in the upper part of the cultivation tank 11, and hydrogen peroxide solution is supplied from this supply port 14 to the replacement fluid tank 13 in the cultivation tank 11. The hydrogen peroxide solution supplied to the replacement fluid tank 13 flows through the seepage section 12 provided in a part thereof.
Oxygen leached into the nutrient solution or released from the hydrogen peroxide solution is supplied to the nutrient solution.

The structure of the seepage part 12 is as shown in FIG.
The upper opening is covered with the permeable membrane 16 and fixed with a ring 17 made of an elastic material such as rubber, or the permeable membrane 16 is placed over a casing 18 with a threaded part at the end of the opening as shown in FIG. body 18
It is conceivable that an annular lid body 19 having a threaded portion that is screwed into the threaded portion is placed and fixed thereon.

Effects of the Invention As described above, the hydroponic cultivation apparatus according to the present invention allows hydrogen peroxide to ooze out from the seeping part of the hydrogen peroxide water supply device into the nutrient solution in the cultivation tank or nutrient solution tank, and Since oxygen released from water is supplied to maintain the dissolved oxygen concentration in the nutrient solution at the required concentration, there is no need for air pumps or liquid pumps like in conventional hydroponic cultivation equipment, making it low cost and quiet. Moreover, it has the very useful effect of being very easy to use with no fear of electric shock or leakage.

[Brief explanation of drawings]

1 and 2 are cross-sectional views showing the internal structure of a hydroponic cultivation device according to an embodiment of the present invention, and FIG. 3 and FIG. 6 and 6 are cross-sectional views showing the internal structure of a conventional hydroponic cultivation device. 12... Exudation part, 13... Replacement fluid tank. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure Replacement tank 1.3 Figure 3 Figure 4

Claims (1)

[Claims] A hydroponic cultivation device comprising a seepage part provided in a nutrient solution and a replenisher tank connected to the seep part and storing hydrogen peroxide solution.