JPH01274894A - Current water sterilizing apparatus and the same apparatus of culture solution - Google Patents

Abstract

PURPOSE:To efficiently sterilize liquid to be treated by continuously connecting pipe joints to constitute a pipe passage and hangingly constituting an inflow sterilizing lamp to both parts or one part of a raising passage and a lowering passage of the liquid to be treated. CONSTITUTION:The liquid to be treated which has been introduced at proper flow force through an introduction pipe 1 is brought into contact with a first inflow sterilizing lamp L1 at a first stage and lowered through a first lowering passage D1 while being sterilized by receiving its effect. Then the liquid to be treated is again brought into contact with a second inflow sterilizing lamp L2 at a second stage and raised through a second raising passage U2 while being sterilized by receiving its effect and furthermore the liquid is brought into contact with a third inflow sterilizing lamp L3 at a third stage and lowered through a lowering passage D2 while being sterilized by receiving its effect. Finally, the treated liquid finished in sterilizing treatment can be obtained through a feed pipe 11 connected to an elbow En of the terminal part of the equipment.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a running water sterilization device and a running water sterilization device for a culture solution, which is constructed by constructing the same into a hydroponic cultivation device.

(Prior art) Conventionally, in order to manufacture or sterilize a culture solution in a hydroponic cultivation device, methods such as "Method for producing culture solution for hydroponic cultivation" described in Japanese Patent Publication No. 51-1611, -3655
The "method for sterilizing culture solution for hydroponic cultivation" described in the publication No.
Figure B in Figure 12 on page 9 of "New Technology of Hydroponic Cultivation", a special issue on agriculture and gardening published by Seibundo Shinkosha on the 5th,
The contents shown in the schematic diagram of FIG. 1 of the "Sansui type hydroponic plant" belonging to the culture solution thin film method called NFT, which is also disclosed on pages 57 to 59, are implemented.

(Problems to be Solved by the Invention) However, in the case of the invention described in Japanese Patent Publication No. 51-1611, when the culture solution is being manufactured and sterilized, the culture in the hydroponic tank is Liquid may not be supplied.

Furthermore, it seems inappropriate to provide a sterilizing lamp itself, which is relatively easily damaged, with a stirring function for sterilizing the culture solution while producing it, taking into consideration the water resistance of the culture solution during stirring.

Furthermore, although the sterilizing lamp is supported in the culture solution at both ends by a stirring arm through a closed box, in reality, both ends of the sterilizing lamp cannot be used for a long period of time. Not only is there the problem of whether or not it can be completely sealed, but even if the seal can be completely sealed, moisture will remain inside the sealed box, which may cause the socket to close. There is a risk of damage or electrical leakage occurring in a relatively short period of time.

Even if the above-mentioned problems could be solved, it would be inappropriate to perform the sterilization treatment of the culture solution and the production of the culture solution in the same production tank.

This is because the used culture solution discharged from the hydroponic tank contains pathogens and pests, and it is necessary to sterilize the culture solution before transferring it to the production tank for producing new culture solution. Not only is it unlikely that the sterilization efficiency will be improved by flowing in and mixing with a new culture solution and stirring, but it is also assumed that pathogenic bacteria will spread to the new culture solution.

In addition, in the case of the invention described in Japanese Patent Publication No. 51-3655, a sterilizing lamp for the culture solution is provided in the supply route to the hydroponic tank,
By allowing the culture solution to flow in a thin film state around the germicidal lamp, it can be inferred that the sterilization efficiency is superior to that of the above-mentioned agitation type device, but it is also possible to install it in the supply route to the hydroponic tank. This is impractical in terms of processing efficiency as described above.

The reason for this is that, as mentioned above, it is necessary to sterilize the culture solution because the used culture solution discharged from the hydroponic tank contains pathogenic bacteria and pests and is recycled. For this purpose, it is sufficient to sterilize the used culture solution that has been absorbed and reduced during the process, and the newly produced culture solution is not also sterilized.

In particular, in the case of NFT hydroponics, the supply of culture solution to the hydroponic tank is controlled intermittently, and a large amount of water is supplied in a relatively short period of time. It is absorbed as needed from the side to the lower side, and slowly flows down over a relatively long period of time.

Specifically, in the case of NFT hydroponics carried out by the applicant, if the culture solution is intermittently supplied to each hydroponic tank for about 5 minutes per hour, this will take up the remaining 55 minutes. The water is controlled so that it flows slowly down the hydroponic tank.

In this case, 300 to 50 per hydroponic facility 0a (1 field)
Approximately 1.5 to 2.5 tons of culture solution must be supplied at a rate of 0.01/a+in for about 5 minutes, that is, in a relatively short period of time.

However, since there is a limit to the sterilization capacity of each sterilizing lamp, in order to sterilize the culture solution and supply it to each hydroponic tank in a relatively short time, it is necessary to set a sterilizer for each hydroponic tank. This requires a large number of germicidal lamps such as sterilizing lamps, which lacks merit in terms of facility costs and treatment efficiency.

Therefore, if this is set on the return flow side from the hydroponic tank, there is no room for the above-mentioned problems to occur.

However, when looking at this from a device perspective, since the mounting structure is such that the body of the sterilizing lamp is sealed at both ends with a wave-shaped sterilizing flow path forming member, there is a possibility that the sterilizing lamp may break or the sterilizing ability decreases. The task of replacing germicidal lamps is cumbersome, and
There is a possibility that the problem of hermeticity of the main body at both ends of the germicidal lamp may actually become apparent.

As a result of comprehensively considering the above-mentioned points, the applicant has previously determined that the used culture solution discharged from the hydroponic tank is
This was implemented using a device that sterilizes the culture fluid before it is returned to the tank.

The structure of this sterilizer is such that a partition is formed so that the culture solution bends and meanderes inside a flat, relatively shallow rectangular water tank, and a direct line between the culture solution return passages divided into many sections by the partitions is formed. 10 to 15 per 1000M” (1 roll)
The solution was to support a germicidal lamp about the size of a book at both ends so that it could radiate downward, and then cover it with a top lid to seal it so that the light of the germicidal lamp would not leak outside.

However, due to the necessity of sealing and sterilizing, moisture is trapped in the sealed chamber, which makes it easy to see the socket's partial force.

In addition, in the case of the sterilization device implemented by the applicant, the sterilization lamp is set in the air at the straight part of the reflux passage, so as in the case of the sterilization device mentioned above, the sterilization lamp is placed in the culture medium. It cannot be denied that the sterilizing ability of each sterilizing lamp is not fully utilized, resulting in a loss of sterilization compared to the sterilizing lamp that is constructed inside the sterilizing lamp.

By the way, recently, a cantilevered running water sterilizing lamp (manufactured by Matsushita Electric Industrial Co., Ltd.) with a double tube structure in which the outside of the luminous tube of the sterilizing lamp is hermetically covered with a protective tube has been commercially available. This system is used to connect a live fish tank, swimming pool purification device, water purification device, hydroponic cultivation device, etc. with piping to supply sterilized liquid using a circulation pump.

(Means for Solving the Problems) Therefore, in the present invention, a set of an ascending passage U and a descending passage for the liquid to be treated, and a cross passage M and N connecting the ascending passage U and the descending passage are combined. A running water sterilizer comprising a pipe body passage connected in a chain with pipe joints, and a running water sterilizing lamp suspended from both or either one of the ascending passage U and the descending passage for the processing liquid. This makes it possible to efficiently sterilize the liquid to be treated.

In particular, the curved rear part of the long hydroponic tank H and the culture solution W tank 14
The culture solution W pumped up from the tank 14 flows into the front part of the hydroponic tank H, is discharged from the rear part of the water IF tank H to the tank 14, and is circulated again. In a hydroponic cultivation apparatus configured to sterilize the used culture solution W discharged from the cultivation tank H and return it to the tank 14, the used culture solution W has an ascending passage U and a descending passage. , a tubular body passage including a set of an upper crossing passage M and a lower crossing passage N that connect the ascending passage U and the descending passage,
Provided is a flowing water sterilization device for culture solution, which is constructed by connecting pipe joints in a chain, and has running water sterilization lamps hanging down from an ascending passage U and a descending passage for used culture solution W, and this chain By allowing the used culture solution to flow up and down through the shaped tubular passage, the culture solution is naturally stirred by the flow of the culture solution itself, and the culture solution that is being raised and lowered comes into contact with the running water sterilization lamp, and due to its influence, After refluxing the liquid while effectively sterilizing it, the liquid can be circulated and supplied again.

(Example) First, in FIGS. 1 and 2 showing the main parts of the running water sterilizer according to the present invention, 1 is an introduction pipe for the liquid to be treated flowing in at an appropriate flow rate, Underground piping will be installed at a slope of .

El is the first elbow that stands up and connects to the end of the introduction tube 1, and the end of the introduction tube 1 is inserted and connected to the inner peripheral surface of the entrance portion 2A of the elbow E1. The outlet section 2B is raised upward and the piping is installed.
The liquid to be treated introduced into the elbow E is caused to flow upward while being curved.

T is the first cheese whose upper and lower ends are raised and connected in a backward T-shape, and the inner peripheral surface of the upper end outlet part 2B of the first elbow E1 and the first cheese T, A first connecting pipe S is inserted into the inner circumferential surface of the lower end entrance portion 3A to form a connecting pipe.

Reference numeral 4 denotes a filter like a sponge mat, which is filled inside the pipe joint consisting of the first cheese T and the first elbow EI.
After filtering dust and the like contained in the rising liquid to be treated through the c-th ascending passage U1, the liquid to be treated is passed through the central rear exit section 3B of the first cheese T. I try to make the flow curve towards the direction.

C1 is the upper lid of the cheese T1 screwed onto the upper end portion 3C of the first cheese T.

T is the second cheese and the first cheese T
, the entrances and exits face each other in the front and back, and their upper and lower ends are raised and connected, and the inner circumferential surface of the entrance section 5A at the center front thereof and the exit section 3 at the center rear of the first cheese T.
A second connecting pipe S is inserted into the inner circumferential surface of B, and the second connecting pipe S is connected and fixed, so that the liquid to be treated that has flowed up in the upward passage Ut is advected from the front to the rear through the first upper cross section. Passage M
.

is configured with piping in the front and back direction.

C2 is an upper lid screwed onto the upper end 5C of the second cheese T, and a first running water sterilization lamp is inserted downward from the central opening of the upper lid C2, and the running water sterilization lamp is inserted downward. The neck portion of L1 is screwed onto the inner circumferential surface of the upper lid C1 and is suspended and supported in a hanging state.

6 is a power supply plug formed at the top of the running water sterilizing lamp L1.

C2 is a second elbow connected laterally to the lower end of the second cheese T, and is connected to the inner circumferential surface of the upper end entrance portion 7A of the elbow E and the second cheese T. The third connecting pipe S is inserted into the inner circumferential surface of the lower end outlet portion 5B, and the third connecting pipe S is connected and fixed, and the second cheese T and the second
The inside of the pipe body of the pipe joint consisting of the th elbow E,
A first descending passage D1 through which the liquid to be treated descends is constructed, and a first running water sterilization lamp L1 is installed inside the descending passage.
The main body of is immersed.

C3 is a third elbow connected and supported facing the second elbow Et, and has an inner circumferential surface of its entrance portion 8A and an inner circumferential surface of the outlet portion 7B of the second elbow E. Insert the fourth connecting pipe S4 to connect and fix it,
A first lower crossing passage N in which the liquid to be treated that has descended through the descending passage D1 is twisted and curved, temporarily advected in the lateral direction, and then curved again to rise upward;
is constructed at the rear of the piping.

T is the third cheese whose upper and lower ends are raised again and connected and fixed, and the inner peripheral surface of the upper end outlet part 8B of the third elbow E3 and the lower end entrance of the third cheese T. Insert the fifth connecting pipe S6 into the inner circumferential surface of the section 9A, connect and fix it, and connect the inside of the pipe bodies of these pipe joints E3, T.
A second ascending passage U is configured in which the liquid to be treated ascends.

G is the upper lid of the cheese T screwed into the upper end opening 9C of the third cheese T3, and a second running water sterilization lamp is inserted downward from the center opening of the upper lid C3. , the neck of the running water germicidal lamp Lt is screwed onto the inner peripheral surface of the upper 1cs and suspended.

T is a fourth cheese whose upper and lower ends are raised and connected and supported facing the third cheese T, and the inner peripheral surface of the rear entrance portion 10A and the third cheese A sixth connecting pipe S6 is inserted into the inner circumferential surface of the front outlet part 9B of the T, and is connected and fixed thereto, so that the second connecting pipe S6, in which the liquid to be treated that has flowed up in the rising passage U, advects in the forward direction The th upper cross passage M is configured with piping in the front-rear direction.

Thereafter, multiple sets of pipe body passages using pipe joints in this order are repeated, such as the second descending passage 7 consisting of the fourth cheese T4 and the fourth elbow E4, and the second lower crossing passage N7. and then subjected to sterilization treatment.

Reference numeral 11 denotes a sterilized liquid supply pipe that is inserted into and connected to the outlet of the elbow En at the end of the device.

(Function) Thus, the liquid to be treated that has flowed in with an appropriate flow force from the inlet tube 1 for the liquid to be treated is first twisted upwardly at the rear when passing through the first elbow E1, and is turned around. The dust contained in the liquid to be treated flows up through the filter 4 filled in the outlet part 2B of the elbow E and the first ascending passage U consisting of the first cheese T1. etc. are filtered.

The processing liquid passes through the filter 4 (28) and passes through the outlet section 3B at the center of the rear of the first cheese T, and the second outlet section opposite thereto.
It is advected backward through the first upper cross passage M, which is composed of the entrance section 5 at the center of the front part of the third cheese T, and hits the rear wall of the second cheese T, to be processed. In this first stage, the liquid to be treated comes into contact with the first inflow germicidal lamp L.
Under the influence of this, the liquid to be treated is sterilized and flows down the first descending passage.

This time, it twists and curves from the entrance part 7A to the exit part 7B of the second elbow E2, and once advects it laterally through the first lower crossing passage N, and then returns to the third elbow E2.
The liquid flows upward in the -F direction while circulating from the inlet part 8A to the outlet part 8B of the second elbow E, and in this second stage, the liquid to be treated comes into contact with the second running water sterilization lamp again. Under the influence of sterilization, the second
1 ascending passage U.

Then from the third cheese T, from the center of its front part 1
]Part 9
The liquid to be treated that has flowed in from the entrance portion 10A at the center of the rear of the fourth cheese T4 hits the front wall of the fourth cheese T and causes the liquid to be treated to scatter or cause a turbulent flow phenomenon. At this stage, the liquid to be treated comes into contact with the third inflow sterilizing lamp L3, and under the influence of this, the liquid to be treated flows down through the second descending passage while being sterilized.

From now on, the pipe body passages consisting of the lower crossing passage N, the rising passage U, the two-part crossing passage M, and the descending passage will be constructed as required according to the processing capacity of the running water sterilization lamp ■7. After being repeatedly sterilized by running water sterilization lamps installed in each ascending passage U and descending passage, the sterilized sterilized material is finally discharged from the feed pipe 11 connected to the elbow En at the end of the device. A processing solution is obtained.

(Modified example) In the case of the library, we have explained the case where the liquid to be treated enters from the elbow E1 is sterilized and flows out from the elbow En.
Introducing the liquid to be treated from the inlet 5A of the tube, sterilizing it, and piping it so that it flows out from the outlet 9B of the cheese T3, the outlet of the cheese T, or the outlet of the elbows Ee and En, Alternatively, the liquid to be treated that enters from the elbow E can be sterilized and then flowed out from the outlet section 9B of the cheese T or the outlet section of the cheese T5.

In the above case, the first ascending passage U is filled with the filter 4 for filtering the liquid to be treated, but the filter 4 is placed in a separate filter chamber (not shown) at an appropriate place in the introduction pipe 1 for the liquid to be treated. ) is configured I2, the first ascending passage U,
There is also running water and a sterilizing lamp. It is also possible to have a hanging configuration so that running water sterilization can be handled.

(Application Example 1) Next, an overall outline of the application of the running water sterilization device according to the present invention to an fl'T type hydroponic cultivation device installed in a greenhouse will be explained.

Reference numeral 12 denotes a hydroponic bed made of styrofoam and having an upward U-shaped cross section, which are arranged one after another in the long and flat direction, and inside the bed is a long sheet (not shown).
At step 2, by fitting and setting a planting board (not shown) for hydroponic crops on the top of the hydroponic bed 12, multiple rows of long hydroponic tanks H can be placed inside the greenhouse. are configured in parallel.

Reference numeral 13 denotes a bench for the water IF tank H, which has a frame made of pipe material, on which the hydroponic tank H is mounted and supported by tilting slightly backwards from the tip to the rear end, and in consideration of workability. A hydroponic tank H is set at waist height of a person.

Reference numeral 14 denotes a tank for the culture solution W buried in the greenhouse, and 15 indicates a supply vibrator for the culture aW. A strainer 16 attached to the base end of the vibrator is submerged in the culture solution W in the tank 14, and its tip is inserted into the culture solution W in the tank 14. The tip of each hydroponic tank H is exposed through a liquid supply valve 17 attached to the tank, and the culture solution W pumped from the tank 14 is supplied to the tip of each water It tank H by a circulation pump 18. I have to.

I( is a bereaved family vibrator that collects the used culture solution ~V from the end of each hydroponic tank H and returns it to the tank 14, and the base end is connected to the end of each hydroponic tank H. , with its tip facing the tank 14, and between the inlet pipe 1 for the used culture solution W and the supply pipe 11 for the sterilized culture solution W in this return pipe R, By incorporating and configuring the running water sterilizer K according to the invention, efficient running water sterilization treatment of the culture solution W in the hydroponic cultivation apparatus is achieved.

In addition, 19 is a water supply vibrator, which is connected indirectly or directly to a separate water tank or water pipe, and when a drop in the water level of the culture solution W tank 14 is detected by a float or a sensor, water is automatically supplied to the tank 14. It will be done.

20 is one or more concentrated fertilizer tanks, 21 is tank 1
4 is a fertilizing vibrator, and 22 is a fertilizing pump, which automatically supplies an appropriate amount of liquid fertilizer and makeup water as a result of detecting a decrease in the volume of culture solution W, a decrease in fertilizer concentration, a pH change, etc. with a sensor 23. It is configured so that it is controlled appropriately.

(Application Example 2) Next, in order to apply the running water sterilization device K according to the present invention to a purification device for a live fish tank G, as shown in FIG. 24 and drainage vibe 2
A running water sterilizer K according to the present invention is disposed between the pipes 5 and 5, and a flowing water sterilizer K according to the present invention is disposed in between, and the fresh water or seawater W sterilized by this device is supplied to the live fish tank G by a circulation pump 26.

(Effects of the Invention) As described above, the present invention provides a pipe having a set of an ascending passage U and a descending passage for the liquid to be treated, and a cross passage M and N connecting the ascending passage U and the descending passage. The body passage is constructed by connecting pipe joints in a chain, and a running water sterilization lamp is configured to hang down from both or either of the ascending passage U and the descending passage for the processing liquid. Therefore, it is possible to efficiently sterilize running water as the liquid to be treated passes through each stage, and it can be used not only for running water sterilization equipment in hydroponic cultivation equipment that circulates large amounts of water, but also for various ornamental fish, live fish, and fish tanks. , pool, bath water,
It can be used for a variety of purposes as a running water sterilizer in a water purification device for drinking water, other sterile water, etc.

In particular, by constructing a pipe by combining pipe joints consisting of an elbow E, a cheese T, and a connecting pipe S one after another in the front-rear direction and left-right direction, the pipe body passage can be constructed extremely easily. By using the flow force of the liquid to be treated, it twists the liquid to be treated, and causes it to collide with the inner wall surface of the tube.
This causes the liquid to be treated flowing through the pipe passageway to scatter, jump, or cause turbulence, thereby naturally stirring the liquid and making the sterilization process more efficient. Its usefulness as a device that can perform well is extremely significant.

[Brief explanation of the drawing]

Fig. 1 is a schematic perspective view showing the main parts of the running water sterilization device according to the present invention, Fig. 2 is a longitudinal sectional front view showing its unfolded state, and Fig. 3 is an application of the running water sterilization device of the present invention to a hydroponic cultivation device. FIG. 4 is an overall schematic diagram showing the state in which the present invention is applied, and FIG. Code list K Flowing water sterilizer U l' U t Ascending passageway, ・D, Descending passageway Ml・M, Upper crossing passageway N, -N
,・N, lower crossing passage E +'E t"E s"E 4"E 6"E a"E
n Elbow T I” T t・T3・T4・T5・
T, Cheese S1, S, S3, S4, S, S6 Connecting pipe H Hydroponic tank W Culture solution or water G Live fish tank R Survivor's vibe 1 Introductory pipe 2A, 2B Elbow E, entrance/exit 3A
・3B/3C cheese T, entrance 4 filter
a Germicidal lamp plugs 5A, 5B, 5C Cheese T, entrance/exit Lower A/7B Elbow E, entrance/exit $A-8B Elbow E3 entrance/exit

Claims (6)

[Claims] (1) A pipe body passage consisting of a set of rising passage U and descending passage D for the liquid to be treated, and a cross passage M connecting the rising passage U and descending passage D, is connected in a chain with pipe joints. A running water sterilizing device characterized in that a running water sterilizing lamp L is configured to hang down from both or either one of the ascending passage U and the descending passage D of the processing liquid. (2) The ascending passage U and the descending passage D are piped at the front and back positions of the tube body passage, and they are connected in the front and rear direction by an upper cross passage M,
The running water sterilizer according to claim 1, wherein the adjacent ascending passage U and descending passage D are connected in the left-right direction by a lower crossing passage N. (3) Claim 1 or 2 in which the pipe body passage is constructed by combining a cheese T, an elbow E, and a connecting pipe S.
The running water sterilizer described in section. (4) The running water sterilizing device according to claim 3, wherein the running water sterilizing lamp L is screwed onto the upper lid C of the cheese T that stands up vertically. (5) A running water sterilizer according to claim 1, 2, or 3, in which a filter 4 is filled inside the ascending passage U or the descending passage D at the forefront. (6) Front and rear of long hydroponic tank H and tank 14 for culture solution W
The culture solution W pumped up from the tank 14 flows into the front part of the hydroponic tank H, and the used culture solution W discharged from the rear part of the hydroponic tank H is sterilized. In a hydroponic cultivation apparatus configured such that the used culture solution W is returned to the tank 14 and circulated again, the ascending passage U and descending passage D of the used culture solution W are connected between the ascending passage U and the descending passage D. A pipe body passage consisting of an upper crossing passage M and a lower crossing passage N is connected in a chain with pipe joints, and the used culture solution W is sterilized by running water in the ascending passage U and descending passage D. A running water sterilization device for a culture solution, characterized in that a lamp L is configured to hang down.