CN103190331B - Nutrient solution recycling device for soilless cultivation - Google Patents
Nutrient solution recycling device for soilless cultivation Download PDFInfo
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- CN103190331B CN103190331B CN201310160417.XA CN201310160417A CN103190331B CN 103190331 B CN103190331 B CN 103190331B CN 201310160417 A CN201310160417 A CN 201310160417A CN 103190331 B CN103190331 B CN 103190331B
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Abstract
The invention discloses a nutrient solution recycling device for soilless cultivation. The nutrient solution recycling device for soilless cultivation is characterized in that the lower end of a water storage tank of which the upper end has a third filling hole is connected with the upper side of a compensation chamber; a first operating gap of a first stop valve is formed between the water storage tank and the compensation chamber; the upper end of a first normal pressure pipe penetrates into the water storage tank and is arranged at the lower part inside the water storage tank, so that the water storage tank is communicated with a reflux tank; the upper end of a second normal pressure pipe penetrates into the water storage tank and is arranged at the upper part inside the water storage tank, so that the water storage tank is communicated with the compensation chamber; the lower end of a mother liquid storage tank is connected with the upper side of the reflux tank; a second operation gap is formed between the mother liquor storage tank and the reflux tank; a third normal pressure pipe and a fourth normal pressure pipe, which are vertically arranged communicate the mother liquor storage tank and the reflux tank; the pipe body of the fourth normal pressure pipe, at the second operating gap, is connected with the second stop valve; the upper ends of the third normal pressure pipe and the fourth normal pressure pipe are respectively arranged at the upper part and the lower part inside the mother liquor storage tank; and the lower ends of two pipes are arranged at the upper part inside the reflux pipe. By adopting the device, the nutrient solution is supplied to a seed bed; and the concentration adjustment is easy and convenient.
Description
Technical field
The present invention relates to a kind of liquid-circulating equipment, particularly relate to a kind of soilless culture nutrient solution recycle unit.
Background technology
In recent years, cultivation technique without soil is just progressing into the industrial applications stage, and occupies gradually dominant position in the field such as such as vegetables and flowers production.
But, the self structure design of existing large industrialized soilless-culture equipment is too complicated, high cost, greatly limit the popularization of cultivation technique without soil at scientific research and civil area, therefore, developing a kind of modularization, automation, simple to operation, with low cost, culture fluid configuration specification, have the middle-size and small-size soilless-culture equipment of higher nutrient solution chemically stable ability and long-term non-maintaining characteristic, is very urgent.
At present, more existing similar patents have proposed a series of technical solutions for problems, but described patent only considers how to supply the moisture requirement of plant, nutrient requirement rate to plant does not but take in completely, this is very worthless beyond doubt at scientific research field, even if be applied in civil area, also cannot build the rhizospheric environment that in the long-term growth course of plant, necessary nutrient content is moderate, aeration status is good.
In addition, in the water incubation of plant, described patent all needs timing to change continually water, waste time and energy, cause huge manpower expenditure and the wasting of resources, and cannot stably maintain the rhizosphere acid or alkali environment of plant, like this, in the water culture experiment of carrying out such as heavy metal stress, poisonous and harmful substance enrichment etc., the processing cost of contaminants associated matter also can increase greatly.
Above-mentioned defect has seriously limited the promotion and application of cultivation technique without soil at scientific research and civil area.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of soilless culture nutrient solution recycle unit, adopts this equipment, is the supplementary nutrient solution in seedbed, and its concentration adjustment easily, conveniently.
For solving the problems of the technologies described above, the invention provides a kind of soilless culture nutrient solution recycle unit, comprise that upper end is provided with the mother liquor tank of the first filling opening, compensated chamber and return tank, compensated chamber and return tank are stacked up and down, the volume of compensated chamber is less than the volume of return tank, and the first normal pressure pipe of vertically arranging runs through compensated chamber, and the lower end of the first normal pressure pipe is positioned at the top of return tank, the second normal pressure pipe of vertically arranging pierces in compensated chamber, and the lower end of the second normal pressure pipe is positioned at the bottom of compensated chamber;
The upper end of the first normal pressure pipe, the upper end of the second normal pressure pipe are all positioned at outside compensated chamber, and the upper end of the first normal pressure pipe is lower than the upper end of the second normal pressure pipe, the first normal pressure pipe, the second normal pressure pipe are positioned at and on the body outside compensated chamber, are connected to the first stop valve of simultaneously controlling two pipe break-makes;
The water valve that enters communicating with its inner chamber is set in compensated chamber, in compensated chamber, be provided with inverted U-shaped siphon pipe, it comprises that first of vertical layout is managed, the second pipe, siphonal upper end is positioned at the top of compensated chamber, the first pipe puts in return tank through compensated chamber and the lower end of the first pipe is positioned at the top of return tank, the lower end of the first pipe is connected to ball float by water check valve, and the lower end of the second pipe is positioned at the bottom of compensated chamber and the lower end lower than the second normal pressure pipe;
The bottom of return tank is connected to outlet valve by the circulating pump communicating with its inner chamber, and timer is electrically connected with circulating pump, and return tank is provided with the second filling opening;
The mouth of pipe opening size of the first normal pressure pipe is less than the water inlet opening size into water valve, and the water inlet opening size that enters water valve is less than siphonal mouth of pipe opening size, enters the water inlet opening size of water valve identical with the delivery port opening size of outlet valve;
The lower end of water basin and the upside of compensated chamber that upper end is provided with the 3rd filling opening join, between water basin and compensated chamber, leave the first operating clearance of the first stop valve, the upper end of the first normal pressure pipe is pierced in water basin and is positioned at the bottom of water basin, so that water basin and return tank are communicated with, the upper end of the second normal pressure pipe is pierced in water basin and is positioned at the top of water basin, so that water basin and compensated chamber's connection;
The lower end of mother liquor tank and the upside of return tank join, between mother liquor tank and return tank, leave the second operating clearance, the 3rd normal pressure pipe, the 4th normal pressure pipe vertically arranged are communicated with mother liquor tank and return tank, and the 4th normal pressure pipe is positioned on the body at the second operating clearance place and is connected to the second stop valve of controlling this pipe break-make;
The upper end of the 3rd normal pressure pipe is positioned at the top of mother liquor tank, and the lower end of the 3rd normal pressure pipe is positioned at the top of return tank, and the upper end of the 4th normal pressure pipe is positioned at the bottom of mother liquor tank, and the lower end of the 4th normal pressure pipe is positioned at the top of return tank.
For the purpose of concise description problem, below to soilless culture of the present invention with nutrient solution recycle unit all referred to as this equipment.
Use this equipment between this equipment and seedbed, to obtain the concrete steps that circulate by nutrient solution below by simple introduction, describe the advantage of this equipment:
1) in water basin, be filled with distilled water or soft water, in mother liquor tank, compensated chamber, return tank, be filled with respectively the nutrient solution of respective concentration, in sour tank, alkali tank, be filled with respectively acid regulator, the alkaline conditioner of respective concentration, make outlet valve connect the water inlet in the seedbed in soilless-culture equipment by pipeline, make to connect into water valve the delivery port in seedbed by pipeline, and set working time of circulating pump by timer, open the first stop valve;
2) ON cycle pump aspirates it constantly, pump into the nutrient solution in return tank to seedbed, the disappearance water level of plant in supplementary seedbed through consuming, absorbing, the nutrient solution that return tank runs off adopts U-shaped siphon pipe, water check valve, ball float, constantly supplemented by the nutrient solution in compensated chamber, can ensure the CL in return tank;
3) when the liquid level in compensated chamber is during lower than the lower end of the second normal pressure pipe, the watertight status releasing of the second normal pressure pipe, water in water basin is under atmospheric pressure and Action of Gravity Field, in the first normal pressure pipe flows into return tank, the water running off in return tank is supplemented, to regulate the nutrient solution concentration in return tank, along with the decline of liquid level in compensated chamber, finally, when the liquid level in compensated chamber is during lower than the lower end of the second pipe, siphon pipe disconnects automatically;
4) after the disappearance water level in seedbed obtains supplementing, from the low concentration backflow nutrient solution in seedbed start by open completely enter water valve continue to flow covering repay indoor, liquid level in compensated chamber gets a promotion, and seal the lower end of the second normal pressure pipe, allow the second normal pressure pipe again in watertight state, make water basin stop supplementing water to return tank, in the time that liquid level in compensated chamber rises gradually and exceedes siphonal upper end, siphon pipe is connected again automatically;
When the nutrient solution concentration in return tank is during lower than nutrient solution concentration in compensated chamber, open the second stop valve, high concentration nutrient solution in mother liquor tank (being all called for short below mother liquor) is injected to return tank by the 4th normal pressure pipe, can regulate easily, easily the nutrient solution concentration in return tank, when the liquid level in return tank is during higher than the lower end of the 4th normal pressure pipe, due to pressure-acting, mother liquor tank stops injecting mother liquor in return tank;
Above 2) to 4) step is the circulation for the first time of nutrient solution;
5) timer continues to connect, circulating pump continuous firing, again repeat 2) to 4) step, nutrient solution starts to circulate for the second time, can be reached for the object of seedbed Automatic continuous Additional nutrient solution, supply seedbed implants grow consumed moisture and mineral matter, maintain the relatively stable of the liquid level of nutrient solution in seedbed and each nutrient component, in other words, make the nutrient solution in seedbed continue to obtain circulation renewal;
6) repeatedly repeat 2) to 4) step, until arrive after the setting-up time of timer, timer cuts out automatically, power-off, the circulation of the nutrient solution between this equipment and seedbed stops.
Like this, make nutrient solution circular flow between seedbed and this equipment, the cyclic process of nutrient solution is time saving and energy saving, it is easy, convenient that nutrient solution concentration in return tank regulates, be reached for the object of seedbed continuous supplementation nutrient solution, in seedbed, the nutriment of nutrient solution and effective content thereof are fully guaranteed, therefore adopt this equipment, for the supplementary nutrient solution in seedbed, its concentration adjustment easily, conveniently.
Separately, this equipment also has advantages of easy to use.
The lower end of described sour tank and the upside of return tank join, between acid tank and return tank, leave the 3rd operating clearance, 5 constant virtues pressure pipe, the 6th normal pressure pipe vertically arranged are communicated with sour tank and return tank, and the 6th normal pressure pipe is positioned on the body at the 3rd operating clearance place and is connected to the 3rd stop valve of controlling this pipe break-make;
The upper end of 5 constant virtues pressure pipe is positioned at the top of sour tank, and the lower end of 5 constant virtues pressure pipe is positioned at the top of return tank, and the upper end of the 6th normal pressure pipe is positioned at the bottom of sour tank, and the lower end of the 6th normal pressure pipe is positioned at the top of return tank;
The lower end of alkali tank and the upside of return tank join, between alkali tank and return tank, leave the 4th operating clearance, the 7th normal pressure pipe, the 8th normal pressure pipe vertically arranged are communicated with alkali tank and return tank, and the 8th normal pressure pipe is positioned on the body at the 4th operating clearance place and is connected to the 4th stop valve of controlling this pipe break-make;
The upper end of the 7th normal pressure pipe is positioned at the top of alkali tank, and the lower end of the 7th normal pressure pipe is positioned at the top of return tank, and the upper end of the 8th normal pressure pipe is positioned at the bottom of alkali tank, and the lower end of the 8th normal pressure pipe is positioned at the top of return tank.
In the time that the pH of nutrient solution in return tank value departs from predetermined value, open the 3rd stop valve, the acid regulator in sour tank is injected to return tank, then open the 4th stop valve, alkaline conditioner in alkali tank is injected to return tank, thereby regulate easily the pH value of nutrient solution in return tank.
Described horizontally disposed filter chamber is located at the top of compensated chamber, and filter chamber is connected with compensated chamber, enter water valve and be arranged on the top of filter chamber, and enter water valve, filter chamber is connected.
Like this, adopt filter chamber, can effectively filter from the impurity in the low concentration backflow nutrient solution in seedbed.
The cross sectional shape of described compensated chamber is rectangle;
The cross sectional shape of filter chamber is roughly rectangle, the base plate of filter chamber comprises level board and the outward extending hang plate of inner side, set in base plate near a side of mother liquor tank is, set outside base plate away from a side of mother liquor tank is, level board is laid on the top board of compensated chamber, hang plate and compensated chamber join away from the top of that side plate of mother liquor tank, hang plate away from the outside of mother liquor tank higher than hang plate the inner side near mother liquor tank, the described side plate top of compensated chamber has the water inlet for being communicated with filter chamber and compensated chamber corresponding to the inner side place of hang plate;
In filter chamber, be provided with upper and lower stacked filter material and the support of network form, support is laid on level board and hang plate;
Enter water valve and be arranged on filter chamber away from that side plate of mother liquor tank and higher than filter material.
Like this, filter chamber simple and reasonable, price is lower.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Embodiment
Further illustrate the present invention below in conjunction with accompanying drawing and by embodiment.
Referring to Fig. 1:
For further clear clearly stating for the purpose of problem, in Fig. 1, express the corresponding liquid level of distilled water in respective liquid container or soft water, corresponding nutrient solution, acid regulator, alkaline conditioner by some dotted lines and corresponding piece number, specifically describe respectively as follows:
A is the initial liquid level (i.e. the highest level allowance) of the interior distilled water of water basin 2 or soft water (being all called for short below water), a ' is the minimum level allowance of water basin 2 interior water, b is the highest level allowance of compensated chamber's 3 interior nutrient solutions, the minimum level allowance (being minimum warning liquid level) that b ' is compensated chamber's 3 interior nutrient solutions, c is the initial liquid level (i.e. the highest level allowance) of return tank 4 interior nutrient solutions, d is the initial liquid level (i.e. the highest level allowance) of mother liquor tank 1 interior mother liquor, and d ' is the minimum level allowance of mother liquor tank 1 interior mother liquor.Not shown described distilled water or soft water, mother liquor, corresponding nutrient solution, acid regulator, alkaline conditioner in Fig. 1.
The structure of this equipment is:
This equipment comprises that upper end is provided with the mother liquor tank 1 of the first filling opening 1a, return tank 4, upper end and is provided with the water basin 2 of the 3rd filling opening 2a, horizontally disposed filter chamber 5, compensated chamber 3, sour tank 6, alkali tank 7.
The cross sectional shape of filter chamber 5 is roughly rectangle.The cross sectional shape of compensated chamber 3 is rectangle, and the volume of compensated chamber 3 is less than the volume of return tank 4.The cross sectional shape of return tank 4 is roughly rectangle, and its horizontal top plate comprises left plate 4b, the right panel 4c of stepped arrangement, and left plate 4b is higher than right panel 4c, and the length of left plate 4b is greater than the length of right panel 4c.The cross sectional shape of mother liquor tank 1, water basin 2, sour tank 6, alkali tank 7 is roughly cylindrical shape.Compensated chamber 3 and return tank 4 are stacked up and down, and compensated chamber 3 is positioned at the left side of left plate 4b; The right side of the lower end of mother liquor tank 1 and left plate 4b joins (that is: the upside of the lower end of mother liquor tank 1 and return tank 4 joins); Visible, arrange compensated chamber 3, mother liquor tank 1 left and right.Return tank 4 is provided with the second filling opening 4a away from the top of the vertical side plate 4d in left side of mother liquor tank 1.The lower end of acid tank 6, alkali tank 7 all joins with right panel 4c, and sour tank 6, the 7 left and right arrangements of alkali tank (that is: the upside of the lower end of sour tank 6 and return tank 4 joins, the lower end of alkali tank 7 and the upside of return tank 4 join).The top board 3a central area of the lower end of water basin 2 and compensated chamber 3 joins (that is: the upside of the lower end of water basin 2 and compensated chamber 3 joins).
Between water basin 2 and compensated chamber 3, leave first operating clearance (piece number of not shown the first operating clearance in Fig. 1) of the first stop valve 10.The lower end that the first normal pressure pipe 8 of vertically arranging runs through compensated chamber's 3, the first normal pressure pipes 8 is positioned at the top of return tank 4, and the upper end of the first normal pressure pipe 8 is pierced in water basin 2 and is positioned at the bottom of water basin 2, so that water basin 2 and return tank 4 are communicated with.The second normal pressure pipe 9 of vertically arranging pierces in compensated chamber 3, and the lower end of the second normal pressure pipe 9 is positioned at the bottom of compensated chamber 3, and the upper end of the second normal pressure pipe 9 is pierced in water basin 2 and is positioned at the top of water basin 2, so that water basin 2 and compensated chamber 3 are communicated with.The first normal pressure pipe 8, the second normal pressure pipe 9 are positioned at and on the body outside compensated chamber 3, are connected to the first stop valve 10 of simultaneously controlling two pipe break-makes.
Visible, the upper end of the first normal pressure pipe 8, the upper end of the second normal pressure pipe 9 are all positioned at outside compensated chamber 3, and the upper end of the first normal pressure pipe 8 is lower than the upper end of the second normal pressure pipe 9.
The base plate of filter chamber 5 comprises level board 5c and the outward extending hang plate 5d of inner side, set in base plate near a side of mother liquor tank 1 is, set outside base plate away from a side of mother liquor tank 1 is, level board 5c is laid on the top board 3a of compensated chamber 3, hang plate 5d and compensated chamber 3 join away from the top of the vertical side plate 3b in left side of mother liquor tank 1, hang plate 5d away from the outside of mother liquor tank 1 higher than hang plate 5d the inner side near mother liquor tank 1, the described side plate 3b top of compensated chamber 3 has the water inlet 3c for being communicated with filter chamber 5 and compensated chamber 3 corresponding to the inner side place of hang plate 5d.
In filter chamber 5, be provided with upper and lower stacked filter material 5a and the support 5b of network form, support 5b is laid on level board 5c and hang plate 5d.
Enter water valve 21 and be arranged on filter chamber 5 away from the vertical side plate 5e in left side of mother liquor tank 1 and higher than filter material 5a.
Like this, enter water valve 21 and be arranged on the top of filter chamber 5, and enter water valve 21, filter chamber 5 is connected, filter chamber 5 is located at the top of compensated chamber 3, and filter chamber 5 is connected with compensated chamber 3.Visible, what in compensated chamber 3, adopt filter chamber 5 to arrange to communicate with its inner chamber enters water valve 21.
In compensated chamber 3, be provided with inverted U-shaped siphon pipe, it comprises that the first pipe 20a, second of vertical layout manages 20b, siphonal upper end is positioned at the top of compensated chamber 3, the first pipe 20a puts in return tank 4 through compensated chamber 3 and the lower end of the first pipe 20a is positioned at the top of return tank 4, the lower end of the first pipe 20a is connected to ball float 20d by water check valve 20c, and the lower end of the second pipe 20b is positioned at the bottom of compensated chamber 3 and the lower end lower than the second normal pressure pipe 9.
The bottom of return tank 4 is connected to outlet valve 23 by the circulating pump 22 communicating with its inner chamber, and timer 24 is electrically connected with circulating pump 22.The downside of return tank 4 is provided with the oxygenation head 25 being electrically connected with timer 24.Like this, can implement timing oxygenation to the nutrient solution in return tank 4, in time the oxygen content in Additional nutrient solution.
Between mother liquor tank 1 and return tank 4, leave the second operating clearance (piece number of not shown the second operating clearance in Fig. 1).The 3rd normal pressure pipe 11, the 4th normal pressure pipe 12 vertically arranged are communicated with mother liquor tank 1 and return tank 4, and the 4th normal pressure pipe 12 is positioned on the body at the second operating clearance place and is connected to the second stop valve 13 of controlling this pipe break-make.The upper end of the 3rd normal pressure pipe 11 is positioned at the top of mother liquor tank 1, and the lower end of the 3rd normal pressure pipe 11 is positioned at the top of return tank 4, and the upper end of the 4th normal pressure pipe 12 is positioned at the bottom of mother liquor tank 1, and the lower end of the 4th normal pressure pipe 12 is positioned at the top of return tank 4.
Between acid tank 6 and return tank 4, leave the 3rd operating clearance (piece number of not shown the 3rd operating clearance in Fig. 1).5 constant virtues pressure pipe 14, the 6th normal pressure pipe 15 vertically arranged are communicated with sour tank 6 and return tank 4, and the 6th normal pressure pipe 15 is positioned on the body at the 3rd operating clearance place and is connected to the 3rd stop valve 16 of controlling this pipe break-make.The upper end of 5 constant virtues pressure pipe 14 is positioned at the top of sour tank 6, and the lower end of 5 constant virtues pressure pipe 14 is positioned at the top of return tank 4, and the upper end of the 6th normal pressure pipe 15 is positioned at the bottom of sour tank 6, and the lower end of the 6th normal pressure pipe 15 is positioned at the top of return tank 4.
Between alkali tank 7 and return tank 4, leave the 4th operating clearance (piece number of not shown the 4th operating clearance in Fig. 1).The 7th normal pressure pipe 17, the 8th normal pressure pipe 18 vertically arranged are communicated with alkali tank 7 and return tank 4, and the 8th normal pressure pipe 18 is positioned on the body at the 4th operating clearance place and is connected to the 4th stop valve 19 of controlling this pipe break-make.The upper end of the 7th normal pressure pipe 17 is positioned at the top of alkali tank 7, and the lower end of the 7th normal pressure pipe 17 is positioned at the top of return tank 4, and the upper end of the 8th normal pressure pipe 18 is positioned at the bottom of alkali tank 7, and the lower end of the 8th normal pressure pipe 18 is positioned at the top of return tank 4.
The mouth of pipe opening size of the first normal pressure pipe 8 is less than the water inlet opening size into water valve 21, and the water inlet opening size that enters water valve 21 is less than siphonal mouth of pipe opening size, enters the water inlet opening size of water valve 21 identical with the delivery port opening size of outlet valve 23.
Described four stop valves, enter water valve 21, water check valve 20c, outlet valve 23, ball float 20d, circulating pump 22, timer 24, oxygenation head 25 and be commercially available product.The manufacturer of timer 24 is: Cixi City Coudé electrical apparatus factory, and model is: Coudé TW-268, address is: Dong Fan village, Cixi City Yokogawa town, Ningbo City, Zhejiang Province, postcode is: 315318, phone is: 0574-63105198,63191919.
In use procedure, the initial liquid level a of water basin 2 interior water will be lower than the upper end of the second normal pressure pipe 9; The minimum level allowance a ' of water basin 2 interior water is concordant with the upper end of the first normal pressure pipe 8; For the highest level allowance b of compensated chamber's 3 interior nutrient solutions, it is higher than siphonal upper end, lower than the water inlet 3c of compensated chamber 3; For the minimum level allowance b ' of compensated chamber's 3 interior nutrient solutions, it is concordant with the lower end of the second normal pressure pipe 9, and it is higher than the lower end of the second pipe 20b; The initial liquid level c of return tank 4 interior nutrient solutions is determined jointly by water check valve 20c, ball float 20d; The initial liquid level d of mother liquor tank 1 interior mother liquor will be lower than the upper end of the 3rd normal pressure pipe 11; The minimum level allowance d ' of mother liquor tank 1 interior mother liquor is concordant with the upper end of the 4th normal pressure pipe 12; The liquid level of acid tank 6 inner acidic conditioning agents will be between the upper end of 5 constant virtues pressure pipe 14 and the upper end of the 6th normal pressure pipe 15; The liquid level of the alkaline conditioner in alkali tank 7 will be between the upper end of the 7th normal pressure pipe 17 and the upper end of the 8th normal pressure pipe 18.
The concrete steps that use this equipment to obtain circulation by nutrient solution between this equipment and seedbed are:
1) in water basin 2, be filled with distilled water or soft water, at mother liquor tank 1, compensated chamber 3, the interior nutrient solution that is filled with respectively respective concentration of return tank 4, at sour tank 6, the interior acid regulator (example hydrochloric acid solution) that is filled with respectively respective concentration of alkali tank 7, alkaline conditioner (as sodium hydroxide solution), make outlet valve 23 connect the water inlet in the seedbed in soilless-culture equipment by pipeline, make to connect into water valve 21 delivery port in seedbed by pipeline, and set working time of circulating pump 22 by timer 24, open not shown described seedbed in first stop valve 10(Fig. 1, pipeline),
2) timer 24 is connected circuit to setting-up time, start the nutrient solution cyclic process between this equipment and seedbed, that is: ON cycle pump 22, nutrient solution is extracted out by circulating pump 22, flow to seedbed through outlet valve 23, and by the dissolved oxygen in the nutrient solution in the supplementary return tank 4 of oxygenation head 25.Because growing of seedbed implants needs to consume nutrient solution, liquid level in seedbed will inevitably decline, first the nutrient solution of return tank 4 interior outflows will supplement the disappearance nutrient solution in seedbed, in this process, liquid level continuous decrease in return tank 4, but through siphon pipe, water check valve 20c, ball float 20d, constantly supplemented by the nutrient solution in compensated chamber 3, can ensure the CL in return tank 4; Nutrient solution liquid level in compensated chamber 3 constantly declines under siphonal swabbing action, and liquid level in compensated chamber 3 is while not yet dropping to minimum level allowance b ', and the lower end of the second normal pressure pipe 9 is by the nutrient solution being immersed in compensated chamber 3 always;
3) below the liquid level in compensated chamber 3 is reduced to minimum level allowance b ' gradually, enter water valve 21 there is no backflow nutrient solution supplement time, along with the lasting suction of circulating pump 22, first, the watertight status releasing of the second normal pressure pipe 9, water in water basin 2 is under atmospheric pressure (by the common cooperation of the first normal pressure pipe 8, the second normal pressure pipe 9) and Action of Gravity Field, flow in return tank 4 through the first normal pressure pipe 8, interior the run off water of return tank 4 is supplemented to (liquid level of water basin 2 interior water reduces gradually), to regulate the nutrient solution concentration in return tank 4; Second,, along with the decline of compensated chamber's 3 interior liquid levels, finally when the liquid level in compensated chamber 3 is during lower than the lower end of the second pipe 20b, cause siphon pipe to interrupt stopping the suction (being that siphon pipe disconnects automatically) to compensated chamber's 3 interior nutrient solutions because of its inner fluid column;
4) along with the lasting suction of circulating pump 22, after the disappearance water level in seedbed obtains supplementing, from the low concentration backflow nutrient solution in seedbed (after plant growth consumes, in seedbed, the effective content of the nutriment of nutrient solution and dissolved oxygen amount are all lower, not shown described low concentration backflow nutrient solution in Fig. 1) start enter water valve 21 and continue to flow back and (adopt filter chamber 5 in compensated chamber 3 through filter chamber 5 by what open completely, can effectively filter from the impurity in the low concentration backflow nutrient solution in seedbed), along with the rising gradually of the interior nutrient solution liquid level in compensated chamber 3, nutrient solution liquid level in siphon pipe is also in continuous rising, after the nutrient solution liquid level in compensated chamber 3 exceedes minimum level allowance b ', seal the lower end of the second normal pressure pipe 9, allow the second normal pressure pipe 9 again in watertight state, make water basin 2 stop supplementing water to return tank 4, in the time that the interior liquid level in compensated chamber 3 rises gradually and reach near the highest level allowance b, siphon pipe is connected again automatically,
When the nutrient solution concentration in return tank 4 is during lower than nutrient solution concentration in compensated chamber 3, open the second stop valve 13, mother liquor in mother liquor tank 1 is injected to return tank 4 by the 4th normal pressure pipe 12, can regulate easily, easily the nutrient solution concentration in return tank 4, when the liquid level in return tank 4 is during higher than the lower end of the 4th normal pressure pipe 12, due to pressure-acting, mother liquor tank 1 stops to the interior injection mother liquor of return tank 4;
When the pH value of return tank 4 interior nutrient solutions is greater than predetermined value, at this moment, can open the 3rd stop valve 16, acid regulator in sour tank 6 is injected to return tank 4, until the pH value of return tank 4 interior nutrient solutions is while approaching predetermined value, close the 3rd stop valve 16, can regulate easily the pH value of return tank 4 interior nutrient solutions; When the pH value of return tank 4 interior nutrient solutions is less than predetermined value, at this moment, can open the 4th stop valve 19, alkaline conditioner in alkali tank 7 is injected to return tank 4, until the pH value of return tank 4 interior nutrient solutions is while approaching predetermined value, close the 4th stop valve 19, can regulate easily the pH value of return tank 4 interior nutrient solutions;
Above 2) to 4) step is the circulation for the first time of nutrient solution;
5) timer 24 continues to connect, circulating pump 22 continuous firings, again repeat 2) to 4) step, nutrient solution starts to circulate for the second time, can be reached for the object of seedbed Automatic continuous Additional nutrient solution, supply seedbed implants grow consumed moisture and mineral matter, maintain the relatively stable of the liquid level of nutrient solution in seedbed and each nutrient component, in other words, make the nutrient solution in seedbed continue to obtain circulation renewal;
Flow out compensated chamber 3 and enter the flow of the nutrient solution of return tank 4 because being less than from seedbed the flow that flows into the low concentration backflow nutrient solution in compensated chamber 3 through siphon pipe, therefore, ensure that first the nutrient solution liquid level in compensated chamber 3 declines gradually after siphon pipe is connected automatically, and described nutrient solution liquid level can not exceed the highest level allowance b, second ensure the CL in return tank 4, ensure the content of mineral substances in nutrient solution;
It should be noted that, along with circulating pump 22 continues suction, for the siphon pipe of automatically connecting again, it will constantly add in return tank 4 from the low concentration backflow nutrient solution in seedbed in compensated chamber 3, and with mix from the mother liquor in the interior inflow return tank 4 of mother liquor tank 1 before, maintain the relatively stable of each nutrient composition content in the nutrient solution in return tank 4, complete the work such as the nutrient renewal of nutrient solution; Separately, due to all polishings of the moisture lacking in circulation time seedbed for the first time, therefore, and circulation time for the second time, this equipment one is to the water inlet Additional nutrient solution in seedbed, and the delivery port in seedbed will synchronously flow out nutrient solution;
6) repeatedly repeat 2) to 4) step, until arrive after the setting-up time of timer 24, timer 24 is closed automatically, power-off, the circulation of the nutrient solution between this equipment and seedbed stops, in chamber 3 to be compensated, no longer include backflow nutrient solution and flow into, the nutrient solution liquid level in compensated chamber 3 will maintain between the highest level allowance b and minimum level allowance b '.
Like this, make nutrient solution circular flow between seedbed and this equipment, the cyclic process of nutrient solution is time saving and energy saving, it is easy, convenient that nutrient solution concentration in return tank 4 regulates, be reached for the object of seedbed continuous supplementation nutrient solution, in seedbed, the nutriment of nutrient solution and effective content thereof are fully guaranteed, therefore adopt this equipment, for the supplementary nutrient solution in seedbed, its concentration adjustment easily, conveniently.
Separately, this equipment also has advantages of easy to use.
Above-described is only one embodiment of the present invention.It should be pointed out that for the person of ordinary skill of the art, under the premise without departing from the principles of the invention, can also make apparent some modification and improvement, these also should be considered as belonging to protection scope of the present invention.
Claims (4)
1. soilless culture nutrient solution recycle unit, comprise that upper end is provided with the mother liquor tank of the first filling opening, compensated chamber and return tank, compensated chamber and return tank are stacked up and down, the volume of compensated chamber is less than the volume of return tank, the first normal pressure pipe of vertically arranging runs through compensated chamber, the lower end of the first normal pressure pipe is positioned at the top of return tank, and the second normal pressure pipe of vertically arranging pierces in compensated chamber, and the lower end of the second normal pressure pipe is positioned at the bottom of compensated chamber;
The upper end of the first normal pressure pipe, the upper end of the second normal pressure pipe are all positioned at outside compensated chamber, and the upper end of the first normal pressure pipe is lower than the upper end of the second normal pressure pipe, the first normal pressure pipe, the second normal pressure pipe are positioned at and on the body outside compensated chamber, are connected to the first stop valve of simultaneously controlling two pipe break-makes;
The water valve that enters communicating with its inner chamber is set in compensated chamber, in compensated chamber, be provided with inverted U-shaped siphon pipe, it comprises that first of vertical layout is managed, the second pipe, siphonal upper end is positioned at the top of compensated chamber, the first pipe puts in return tank through compensated chamber and the lower end of the first pipe is positioned at the top of return tank, the lower end of the first pipe is connected to ball float by water check valve, and the lower end of the second pipe is positioned at the bottom of compensated chamber and the lower end lower than the second normal pressure pipe;
The bottom of return tank is connected to outlet valve by the circulating pump communicating with its inner chamber, and timer is electrically connected with circulating pump, and return tank is provided with the second filling opening;
The mouth of pipe opening size of the first normal pressure pipe is less than the water inlet opening size into water valve, and the water inlet opening size that enters water valve is less than siphonal mouth of pipe opening size, enters the water inlet opening size of water valve identical with the delivery port opening size of outlet valve;
It is characterized in that:
The lower end of water basin and the upside of compensated chamber that upper end is provided with the 3rd filling opening join, between water basin and compensated chamber, leave the first operating clearance of the first stop valve, the upper end of the first normal pressure pipe is pierced in water basin and is positioned at the bottom of water basin, so that water basin and return tank are communicated with, the upper end of the second normal pressure pipe is pierced in water basin and is positioned at the top of water basin, so that water basin and compensated chamber's connection;
The lower end of mother liquor tank and the upside of return tank join, between mother liquor tank and return tank, leave the second operating clearance, the 3rd normal pressure pipe, the 4th normal pressure pipe vertically arranged are communicated with mother liquor tank and return tank, and the 4th normal pressure pipe is positioned on the body at the second operating clearance place and is connected to the second stop valve of controlling this pipe break-make;
The upper end of the 3rd normal pressure pipe is positioned at the top of mother liquor tank, and the lower end of the 3rd normal pressure pipe is positioned at the top of return tank, and the upper end of the 4th normal pressure pipe is positioned at the bottom of mother liquor tank, and the lower end of the 4th normal pressure pipe is positioned at the top of return tank.
2. soilless culture according to claim 1 nutrient solution recycle unit, is characterized in that:
The upside of described return tank and the lower end of sour tank join, between acid tank and return tank, leave the 3rd operating clearance, 5 constant virtues pressure pipe, the 6th normal pressure pipe vertically arranged are communicated with sour tank and return tank, and the 6th normal pressure pipe is positioned on the body at the 3rd operating clearance place and is connected to the 3rd stop valve of controlling this pipe break-make;
The upper end of 5 constant virtues pressure pipe is positioned at the top of sour tank, and the lower end of 5 constant virtues pressure pipe is positioned at the top of return tank, and the upper end of the 6th normal pressure pipe is positioned at the bottom of sour tank, and the lower end of the 6th normal pressure pipe is positioned at the top of return tank;
The lower end of alkali tank and the upside of return tank join, between alkali tank and return tank, leave the 4th operating clearance, the 7th normal pressure pipe, the 8th normal pressure pipe vertically arranged are communicated with alkali tank and return tank, and the 8th normal pressure pipe is positioned on the body at the 4th operating clearance place and is connected to the 4th stop valve of controlling this pipe break-make;
The upper end of the 7th normal pressure pipe is positioned at the top of alkali tank, and the lower end of the 7th normal pressure pipe is positioned at the top of return tank, and the upper end of the 8th normal pressure pipe is positioned at the bottom of alkali tank, and the lower end of the 8th normal pressure pipe is positioned at the top of return tank.
3. soilless culture according to claim 1 and 2 nutrient solution recycle unit, is characterized in that:
The top of described compensated chamber is provided with horizontally disposed filter chamber, and filter chamber is connected with compensated chamber, enter water valve and be arranged on the top of filter chamber, and enter water valve, filter chamber is connected.
4. soilless culture according to claim 3 nutrient solution recycle unit, is characterized in that:
The cross sectional shape of described compensated chamber is rectangle;
The cross sectional shape of filter chamber is rectangle, the base plate of filter chamber comprises level board and the outward extending hang plate of inner side, set in base plate near a side of mother liquor tank is, set outside base plate away from a side of mother liquor tank is, level board is laid on the top board of compensated chamber, hang plate and compensated chamber join away from the top of that side plate of mother liquor tank, hang plate away from the outside of mother liquor tank higher than hang plate the inner side near mother liquor tank, the described side plate top of compensated chamber has the water inlet for being communicated with filter chamber and compensated chamber corresponding to the inner side place of hang plate;
In filter chamber, be provided with upper and lower stacked filter material and the support of network form, support is laid on level board and hang plate;
Enter water valve and be arranged on filter chamber away from that side plate of mother liquor tank and higher than filter material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310160417.XA CN103190331B (en) | 2013-05-05 | 2013-05-05 | Nutrient solution recycling device for soilless cultivation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310160417.XA CN103190331B (en) | 2013-05-05 | 2013-05-05 | Nutrient solution recycling device for soilless cultivation |
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| CN103190331A CN103190331A (en) | 2013-07-10 |
| CN103190331B true CN103190331B (en) | 2014-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310160417.XA Expired - Fee Related CN103190331B (en) | 2013-05-05 | 2013-05-05 | Nutrient solution recycling device for soilless cultivation |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI712359B (en) * | 2020-01-17 | 2020-12-11 | 張耿赫 | Nutrient solution production method |
| CN114223527A (en) * | 2021-08-11 | 2022-03-25 | 南开大学 | Hydroponic crop irrigation system and method based on Internet of things |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86210794U (en) * | 1986-12-31 | 1987-10-31 | 中国农业科学研究院蔬菜研究所 | Household cultivation apparatus with liquid-fertilizer feeding system |
| CN201088052Y (en) * | 2007-03-13 | 2008-07-23 | 中国农业大学 | Nutrient solution heating disinfection system with pH measurement and real-time control functions |
| CN102577920A (en) * | 2012-01-18 | 2012-07-18 | *** | Nutrient solution circulating device for soilless culture |
-
2013
- 2013-05-05 CN CN201310160417.XA patent/CN103190331B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86210794U (en) * | 1986-12-31 | 1987-10-31 | 中国农业科学研究院蔬菜研究所 | Household cultivation apparatus with liquid-fertilizer feeding system |
| CN201088052Y (en) * | 2007-03-13 | 2008-07-23 | 中国农业大学 | Nutrient solution heating disinfection system with pH measurement and real-time control functions |
| CN102577920A (en) * | 2012-01-18 | 2012-07-18 | *** | Nutrient solution circulating device for soilless culture |
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| CN103190331A (en) | 2013-07-10 |
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