JP3990195B2 - Hot water disinfection device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is a method of soaking seed pods in hot water and adhering to the surface of the seed pods or lurking between the rice husks and the pericarp (rice blast disease, stupid seedling disease, seedling blight disease, sesame leaf blight, brown stripe disease, fir tree) The present invention relates to a hot water disinfection apparatus for seed potato that sterilizes, sterilizes, or disinfects (hereinafter referred to as “disinfection”).
[0002]
[Prior art]
Japanese Patent Application Laid-Open No. 2000-316321 or Japanese Patent Application Laid-Open No. 2000-342018 is known as an apparatus for disinfecting pathogens adhering to the surface of seed husks or hiding between rice husks and pericarp by immersing the seed husks in hot water at a predetermined temperature for a predetermined time What is described in is known. Japanese Patent Application Laid-Open No. 11-318118 discloses a hot water disinfection device for a soot seed that hangs a soot container containing the soot seed with a self-propelled crane and puts it in and out of a hot water tank.
[0003]
[Problems to be solved by the invention]
The seed sterilizer described in JP 2000-316321 A or JP 2000-342018 A mentioned above is designed to fill a hot water tank with a water level up to a predetermined water level and to be equipped with an electric water heater having a temperature control function. It is configured to keep the hot water in the hot water tank at a predetermined temperature for hot water disinfection by circulation between the hot water tanks, but if the capacity of the hot water tank is relatively small, the amount of electric heat enough to satisfy the temperature control function of the electric water heater Even if it is a thing, it does not require so long time to raise the temperature of the water stretched in the hot water tank to a predetermined temperature for hot water disinfection. However, if the hot water tank has a large capacity, for example, 500 liters or 1000 liters, the water in the hot water tank can be used to disinfect the hot water with an amount of electric heat sufficient to satisfy the temperature control function of the electric water heater. Not only does it take a considerable amount of time to raise the temperature to the specified temperature, but also heat is dissipated from the hot water tank during heating by the electric hot water heater, making it practically unusable especially in cold regions. there were.
[0004]
Accordingly, the present invention circulates the hot water in the hot water tank between the hot water tank and the hot water tank, which holds the hot water at a predetermined temperature before starting the disinfection operation of the seed vat, and maintains the circulating hot water at the set temperature. The hot water controller is equipped with a hot water tank with a temperature close to a predetermined temperature for hot water disinfection in the hot water tank from the water heater before the start of the hot water disinfection operation of the seed potato. Even if the tank capacity is large, preparation time for the start of hot water disinfection of seed potatoes can be greatly shortened, energy efficiency for obtaining hot water can be improved, and it can be used in cold regions. However, it is an object of the present invention to provide a hot water disinfection device for seed potatoes that can be used without any problem.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a hot water disinfection device for the following seeds. That is, the apparatus according to claim 1 is a hot water disinfection device for seed potatoes that is sterilized by soaking seed potatoes in hot water, and a hot water tank for immersing the seed potatoes in hot water, and a hot water tank having a predetermined temperature before starting the hot water sterilization operation of the seed potatoes. A hot water heater is provided and a hot water controller that circulates the hot water in the hot water tank between the hot water tank and holds the circulating hot water at a set temperature, and includes the hot water tank and the hot water controller. The hot water delivery pipe that sends hot water from the hot water controller that constitutes the hot water circulation system to the hot water tank is always open downward at the part above the hot water tank. A hot water disinfecting apparatus for seed potatoes characterized in that an outside air introduction hole for generating hot water injection is provided in a hot water tank.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
1 is a cross-sectional view of a hot water disinfection apparatus for seed potato according to an embodiment of the present invention, FIG. 2 is a plan view of the same, FIG. 3 is a perspective view of the same, FIG. 4 is a partial cross-sectional view of the same, and FIG. FIG.
[0007]
In FIG. 1 to FIG. 5, reference numeral 1 denotes a hot water disinfection device for seed potatoes. This kind of hot water disinfection apparatus 1 includes a hot water tank 2 and a hot water supply controller 3, and 4 is a hot water circulation port. Inside the hot water tank 2, a porous slat 5 is arranged so as to form a certain height between the bottom surface and the bottom surface of the hot water tank 2 and the stool 5 forms a hot water flow down chamber 6. In addition, the hot water storage chamber 7 is formed on the slats 5. The hot water storage chamber 7 of the hot water tank 2 is formed with a hot water spraying portion 8 having a large number of hot water ejection holes on the upper surface. The hot water tank 2 has a double wall structure, and a heat insulating material is filled in the hollow portion thereof to improve heat retention.
[0008]
The hot water controller 3 includes two hot water heaters 9, and each of the hot water heaters 9 includes a U-shaped electric heater 10. The hot water outlet 11 of each water heater 9 and the hot water spouting portion 8 are connected by a hot water delivery pipe 12, and the lower part of each water heater 9 is connected to the delivery side of the motor pump 13 by a hot water return pipe 14, Ri Ah further suction side of the motor pump 13 is communicated with the hot water flow-down chamber 6 of hot water tank 2 by hot water suction pipe 15, sends the hot water from the water heater 9 for hot water controller 3 to the hot water spouted portion 8 of the hot water tank 2 In the hot water delivery pipe 12 to be heated, an outside air introduction hole 28 that is always open downward at a portion above the hot water tank 2 and causes hot water injection in the hot water tank 2 as the hot water circulates during normal operation. Is provided. With this configuration, the hot water sucked from the hot water flow down chamber 6 of the hot water tank 2 by the motor pump 13 is heated and controlled in the hot water heater 9 so that hot water having a predetermined hot water disinfection temperature set in advance is supplied. The hot water is supplied into the hot water squirting part 8 and is injected from the upper surface of the hot water squirting part 8, and the injected hot water is repeatedly circulated through a path flowing from the hot water storage chamber 7 to the hot water flow down chamber 6 through the slats 5. become.
[0009]
The hot water heater 9 has a built-in float switch 16 and is controlled by a hot water controller 17 to be described later so that the electric heater 10 is energized only when the water heater 9 is at a predetermined water level.
[0010]
The hot water controller 3 includes a hot water controller 17 in the upper part thereof. The hot water controller 17 controls energization of the electric heaters 10 of the hot water heaters 9 to supply hot water to the hot water spraying unit 8. The temperature is maintained at a predetermined temperature and disinfection temperature. The hot water controller 17 includes a start button 18 and a reset button 19 for starting a timer on the upper surface thereof. The hot water tank 2 is provided with an operation device 20 that can be moved and arranged on an appropriate side other than the installation side of the hot water control device 3, and its start button 21 and reset button 22 are connected to the start button 18 of the hot water controller 17. Since the reset button 19 is interlocked with each other, the timer start operation and the stop operation can be performed even if the hot water controller 17 is separated.
[0011]
23 is a gas water heater. The gas water heater 23 is used to fill the hot water tank 2 with hot water at a predetermined temperature before starting the hot water disinfection operation of the seed potato. The hot water controller 3 and the gas water heater 23 are integrated as a unit and fixed to one side of the hot water tank 2. Reference numeral 24 denotes a table structure for unitization. Reference numeral 25 denotes a hot water supply pipe, 26 denotes a water supply pipe to the gas water heater 23, and 27 denotes an overflow port of the hot water tank 2. It should be noted that the hot water controller 3 and the gas water heater 23 can be unitized and installed in the hot water tank 2.
[0012]
The gas water heater 23 is used to fill the hot water tank 2 with hot water of a predetermined temperature before the start of the hot water disinfection operation of the seed rice. Therefore, if the heat source has a relatively large heat capacity, the heat source is not necessarily gas. Although it is good, it is desirable that the heat source has high thermal efficiency and low energy price. In this respect, gas is generally suitable. For example, it is possible to use low-cost nighttime electricity by boiling hot water at night, or use natural energy such as solar heat. It is done.
[0013]
The temperature of the hot water applied to the hot water tank 2 by the gas water heater 23 before starting the hot water disinfection operation of the seed potato is generally set to a temperature slightly lower than the hot water sterilization temperature of the seed potato, and is maintained at a predetermined hot water sterilization temperature by the hot water controller 3. It is. However, the temperature of the hot water is raised from the gas water heater 23 to the hot water tank 2 so that the hot water is slightly lower than the predetermined water level, and cold water is added to the hot water in the hot water tank 2 to the predetermined hot water disinfection temperature. Is possible. And such an aspect is suitable when, for example, boiling hot water at night with electric power at night and using the hot water in the hot water tank 2 can be quickly adjusted to a predetermined temperature. .
[0014]
As described above, the hot water supply pipe 12 for sending hot water from the water heater 9 of the hot water controller 3 to the hot water spouting portion 8 in the hot water tank 2 is always opened downward at a portion over the hot water tank 2. In addition, an outside air introduction hole 28 for causing hot water injection in the hot water tank 2 is provided in accordance with the circulation of the hot water in a normal state . This outside air introduction hole 28 is provided by hot stop of the motor pump 13 or the like. When the hot water circulation between the controller 3 and the hot water tank 2 is stagnated, outside air is introduced to lower the water level in the water heater 9 so that the float switch 16 is turned off and the electric heater 10 is de-energized. It is. In the case where the outside air introduction hole 28 is not provided, as shown in FIG. 6, when the motor pump 13 stops carelessly, the water level in the water heater 9 does not drop and the float switch 16 does not turn off. 10 energization continues and falls into an overheated state.
[0015]
In FIG. 1, 29 is a seed container. The seed and soy container 29 has a porous bottom and side surface. The seed and soy to be sterilized are placed in a net bag or directly stored and placed on the hot water spraying part 8 in the hot water tank 2. Reference numeral 30 denotes the suspension arm.
[0016]
The above-mentioned predetermined hot water disinfection temperature is set to a specific value within the range of 50 ° C. to 65 ° C., and the soaking time of the soy sauce in the range of 5 minutes to 20 minutes, respectively, but when the hot water disinfection temperature is low, disinfection If the time is long and the temperature is high, set the disinfection time short. Incidentally, if an example is shown from various test data, it is preferable that the disinfection time is 15 minutes to 20 minutes at a hot water disinfection temperature of 58 ° C, 10 minutes to 15 minutes at 60 ° C, and 5 to 10 minutes at 62 ° C.
[0017]
In addition, when the hot water tank 2 and the hot water supply controller 3 are used for germination that immerses the seed pod in hot water to promote germination, the hot water control temperature is set to a temperature setting range of 0 to 35 ° C. or 0 to 50 ° C., and a protection upper limit. It shall have the function of temperature 37 degreeC or 52 degreeC.
[0018]
【The invention's effect】
According to the present invention, the hot water in the hot water tank is circulated between the hot water tank and the hot water tank that holds hot water of a predetermined temperature in the hot water tank before starting the disinfection operation of the seed potato, and the circulating hot water is held at the set temperature. A hot water controller is provided, and before hot water disinfection work is started, the hot water tank from the water heater is filled with hot water having a temperature close to a predetermined temperature for hot water disinfection, and temperature control is performed by the hot water controller. Even if the tank capacity is large, preparation time for the start of hot water disinfection of seed potatoes can be greatly shortened, energy efficiency for obtaining hot water can be improved, and in cold areas. However, there is an effect that it can be used without any trouble.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a hot water disinfection apparatus for seed potato according to an embodiment of the present invention.
FIG. 2 is a plan view of the same.
FIG. 3 is a perspective view of the same.
FIG. 4 is a partial cross-sectional view of the above.
FIG. 5 is a partial detail view of FIG. 4;
FIG. 6 is a partial cross-sectional view for explaining problems in this type of hot water disinfection device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Type hot water disinfection device 2 Hot water tank 3 Hot water supply controller 4 Hot water circulation port 5 Sunoko 6 Hot water flow down room 7 Hot water storage room 8 Hot water spouting part 9 Hot water heater 10 Electric heater 11 Hot water supply outlet 12 Hot water delivery pipe 13 Motor pump 14 Hot water Return pipe 15 Hot water intake pipe 16 Float switch 17 Hot water controller 18 Start button 19 Reset button 20 Operator 21 Start button 22 Reset button 23 Gas water heater 24 Stand structure 25 Hot water pipe 26 Water supply pipe 27 Overflow port 28 Outside air introduction hole 29 Seed container 30 Hanging handle

Claims (1)

A hot water disinfection device for seed potatoes that immerses seed potatoes in hot water, a hot water tank that immerses the seed potatoes in hot water, a water heater that fills the hot water tank with a predetermined temperature before starting the hot water sterilization operation, and a hot water tank, And a hot water controller that circulates the hot water in the hot water tank and holds the circulating hot water at a set temperature, and constitutes a hot water circulation system between the hot water tank and the hot water controller. The hot water delivery pipe that sends hot water from the machine to the hot water tank is always open downward at the part above the hot water tank, causing hot water to be injected into the hot water tank as the hot water circulates normally. A hot water disinfection device for seed potatoes characterized by providing an outside air introduction hole.

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