JP3957733B2 - Hot water disinfection device - Google Patents

Description

  The present invention is a method of soaking seed buds in warm water and adhering to the surface of the seed pods or lurking between the rice husks and the pericarp (rice blast, leafy seedlings, seedling blight, sesame leaf blight, brown stripes, 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”).

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 A hot water disinfection device for seed potatoes that suspends a seed potato container containing seed potatoes with a self-propelled crane and puts it in and out of a hot water tank is described in Japanese Patent Application Laid-Open No. 11-318118. . It is also a device for sterilizing vegetable seeds, putting seeds in a basket and flowing hot water upward from below to sterilize, and allowing chilled water to flow upward and downward from the basket with the seeds added after sterilization. What is cooled is described in JP-A-8-9714.
JP 2000-316321 A JP 2000-342018 A JP-A-11-318118 JP-A-8-9714

  In the seed sterilizer described in JP 2000-316321 A, JP 2000-342018 A, or JP 8-9714 A mentioned above, the seed culm is not simply immersed in the hot water stretched on the hot water tank. By soaking the hot water sprinkled on the seed pod, the hot water sterilization of the seed potato is ensured and its effect is improved. That is, in the hot water disinfection device for seed potatoes, a hot water spout unit is provided in the hot water tank, and when disinfecting the hot water of the seed pods, the seed jar containing the seed pods must be lowered onto the hot water squirting portion and placed on a fixed position. However, the hot water tank is filled with hot water, so the complex light refraction effect and steam that accompanies the shaking, and the hot water becomes polluted by repeated disinfection work, etc. For this reason, it is difficult to lower the seed container from the hot water tank to a fixed position on the hot water spraying part. In particular, as shown in Japanese Patent Application Laid-Open No. 11-318118, in the case where a traveling crane is used for raising and lowering the soot container, it is more difficult to align the soot container with the hot water spraying part. This is also a problem in the cold water tank that cools the seed pods after disinfection with hot water by immersing them in cold water.

  Therefore, the present invention provides a guide part for guiding a porous seed container containing a seed soaker to be sterilized to a fixed position on the hot water spray part around the hot water spray part in the hot water tank, As a guide part that is inclined outwardly by 20 ° to 60 ° with respect to the vertical surface and opened outward, the guide part is located on the hot water surface in the hot water tank. A hot water disinfection device for seed potatoes that can be easily and reliably placed at a fixed position on the hot water squirting portion when the seed fountain vessel is placed on the hot water squirting portion in the hot water tank. The purpose is to provide.

  Further, the present invention provides a guide part for guiding a porous seed container containing seed soot to a fixed position on the cold water spray part around the cold water spray part in the cold water tank, and the periphery of the seed seed container of the guide part is provided. As the guide part that is inclined outwardly by 20 ° to 60 ° with respect to the vertical plane and opens outward, the guide part is exposed on the hot water surface in the hot water tank. By configuring so as to provide a hot water disinfection device for seed potatoes that can easily and reliably place the seed pod containers at a fixed position on the chilled water squirting portion when the seed fountain vessel is placed on the chilled water squirting portion in the cold water tank. For the purpose.

  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 comprises a hot water disinfection device for sterilizing seed potatoes in hot water, and a hot water disinfection device for seed potatoes comprising a water chiller for immersing the seed varieties sterilized in hot water with a hot water disinfection device in cold water. The hot water sterilizer is composed of a hot water tank provided with a hot water spraying section for sprinkling hot water inside, and a porous seed container containing the seeds to be disinfected around the hot water spraying section in the hot water tank. The guide unit is provided with a guide unit that guides to a fixed position on the top, and the guide unit is a solid body arranged so as to be in contact with the peripheral surface of the seed container. A hot water disinfection device for seed potatoes, characterized in that it forms a guiding portion that is inclined outward and opens outward, and that the guiding portion is exposed on the hot water surface in the hot water tank. is there.

  According to a second aspect of the present invention, there is provided a hot water disinfection device for a seed vat comprising: a hot water disinfection device for disinfecting a seed vat in hot water; and a water cooler for cooling the vat disinfected by the hot water disinfection device in cold water. The water cooler is equipped with a cold water tank provided with a cold water blow-up section for blowing cold water therein, and a porous seed container containing disinfectant seed seeds around the cold water blow-up section in the cold water tank. A guide part is provided to guide the position, and the guide part is composed of a solid body arranged so as to be in contact with the peripheral surface of the seed vat container, and the upper end of the solid body is outward from 20 ° to 60 ° with respect to the vertical surface. A hot water disinfecting apparatus for seed potatoes characterized in that it forms a guiding portion that is inclined and opened outward, and the guiding portion is exposed on the cold water surface in the cold water tank.

  According to the present invention, there is provided a guide part for guiding a porous seed container containing a seed soaker to be sterilized to a fixed position on the hot water spray part around the hot water spray part in the hot water tank, As a guide part that is inclined outwardly by 20 ° to 60 ° with respect to the vertical surface and opened outward, the guide part is located on the hot water surface in the hot water tank. When the soot container is placed on the hot water spraying part in the hot water tank, the seed soy container can be easily and reliably placed at a fixed position on the hot water spraying part.

  According to the present invention, a guide part for guiding a porous seed container containing seed soot to a fixed position on the cold water spray part is provided around the cold water spray part in the cold water tank. As a guide part that is inclined outwardly by 20 ° to 60 ° with respect to the vertical surface and opened outward, the guide part is located on the hot water surface in the hot water tank. By being configured so as to be exposed to the water, it is possible to easily and reliably place the seed soot container at a fixed position on the cold water spraying part when the seed soy container is placed on the cold water spraying part in the cold water tank.

  1 is a cross-sectional view of a hot water disinfection machine constituting 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, and FIG. 4 is a schematic cross-sectional view of a hot water tank. 5 is a perspective view showing the working mode, FIG. 6 is a perspective view showing a state where hot water is polluted, FIG. 7 is a perspective view of a water cooler constituting the hot water disinfection device, and FIG. 8 is a state where cold water is polluted. FIG. 9 is a schematic cross-sectional view of a cold water tank, and FIG. 10 is a conceptual diagram showing the configuration of a hot water disinfection device equipped with a working crane.

  The hot water disinfection device for seed potato according to the present invention comprises a hot water disinfection machine 1, a water cooler described later, and a working crane. The hot water disinfector 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.

  The hot water controller 3 has a built-in hot water heater 9, and the hot water heater 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, Further, the suction side of the motor pump 13 communicates with the hot water flow down chamber 6 of the hot water tank 2 through the hot water suction pipe 15. 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.

  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.

  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.

  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. 25 is a hot water supply pipe, 26 is a water supply pipe to the gas water heater 23, 27 is an overflow port of the hot water tank 2, and 28 is an overflow pipe. The overflow tube 28 is a translucent (transparent or translucent) flexible tube so that the overflow situation can be observed from the outside.

  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. Gas is generally suitable in this regard. For example, it may be a kerosene hot water heater, or it may be used by boiling hot water at night using low-cost night electricity, solar heat, etc. The use of natural energy is also conceivable.

  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 to a level slightly lower than a predetermined water level, and cold water is added to the hot water in the hot water tank 2 to a 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. . In a cold district, the temperature of the hot water in the hot water tank 2 is also kept at a predetermined temperature by constantly supplying hot water from the gas water heater 23 or hot water at appropriate time intervals.

  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.

  The hot water squirting part 8 in the hot water tank 2 is provided with a guide part 31 that guides the soot container 29 to be lowered from above to a fixed position on the hot water squirting part 8. The guide portion 31 is composed of four raising bodies 32 arranged at the four corners of the hot water spraying portion 8 so as to contact the peripheral surface of the seed vat container 29, in the illustrated embodiment, the surface sandwiching the ridge lines of the four corners of the seed vat container 29. The upper end of the raised body 32 forms a guiding portion 33 that opens outward. The guide portion 33 is inclined outward at about 20 ° to 60 ° with respect to the vertical plane, and an inclination angle of about 45 ° is suitable for smooth lowering guidance of the seed vat container 29. The guide portion 31 is formed by forming a surrounding frame 34 on a raised body 32 arranged at four corners.

  The overflow port 27 opened in the hot water tank 2 is opened at a position where the upper end portion of the raised body 32 of the guide portion 31, that is, the entire guide portion 33 or a part thereof is exposed from the hot water surface (see FIG. 4). ), The overflow pipe 32 is connected to the drain pipe 35 of the hot water tank 2 so that the overflowing hot water is discharged from the drain pipe 35.

  The water cooler 36 constituting the hot water disinfection device for seed potato according to the present invention is for rapidly cooling the seed potato sterilized by hot water sterilizer 1 for a predetermined time in cold water. If the seed pods after hot water disinfection are kept at a high temperature at the time of hot water sterilization, the germination rate of the seed pods will decrease or germination will be impaired, so it is necessary to cool the whole as quickly as possible after disinfection with hot water. There is.

  The water cooler 36 according to the present invention satisfies this requirement. As shown in FIG. 7, the water cooler 36 includes a water supply device 38 that supplies water by pressurizing cold water to a required water pressure in a cold water tank 37, and the inside of the cold water tank 37 is partitioned by a snowboard 39. The upper part is a cold water storage part 40, the lower part is a cold water recirculation part 41, a cold water spout part 42 is provided on the slat 39, and the cold water supplied with pressure from the pump 43 of the water supply 38 through the water supply pipe 44 is cold water. It is comprised so that it may spout in the cold water storage part 40 from the upper surface of the spout part 42. FIG. The cold water spouted into the cold water storage section 40 repeats convection in the cold water storage section 40 and then flows down to the cold water recirculation section 41 through the slats 39 and returns to the pump 43 of the water feeder 38 through the cold water return pipe 45. It consists of. The water supply pipe 44 is provided with a water supply port 46 from the water supply, and cold water is supplied from the water supply port 46 at all times or at an appropriate time interval. A water storage tank (not shown) is provided between the water supply and the water supply port 46. )) Or through a backflow prevention means to prevent backflow from the water supply 38 to the water supply.

  The cold water squirting part 42 is provided with a guide part 47 that guides the soot container 29 to be lowered from above to a fixed position on the cold water squirting part 42. The guide portion 47 is composed of four raising bodies 48 arranged at the four corners of the cold water spraying portion 42 so as to be in contact with the peripheral surface of the seed vat container 29, in the illustrated embodiment, the surface sandwiching the ridge lines of the four corners of the seed vat container 29. The upper end of the raised body 48 forms a guide portion 49 that opens outward. The guide portion 49 is inclined outward by about 20 ° to 60 ° with respect to the vertical plane, and an inclination angle of about 45 ° is suitable for smooth descent guidance of the seed container 29. In the guide portion 47, the surrounding frame is formed on the raised body 48 arranged at the four corners, which is the same as the configuration in the hot water tank 2.

  A drain pipe 50 is connected to the bottom wall of the cold water tank 37, and an overflow pipe 52 is connected to a drain port 51 in the cold water tank 37 of the drain pipe 50, and an overflow port that opens in the cold water tank 37. 53 is opened at a position where the upper end portion of the raised body 48 of the guide portion 47, that is, the entire guide portion 49 or a part thereof is exposed from the cold water surface. In the illustrated embodiment, the overflow pipe 52 can be freely inserted into and removed from the drain pipe 50, and the drain pipe 50 is opened when the overflow pipe 52 is pulled out. It doesn't have to be.

  In the hot water disinfection apparatus 1 for seed potato according to the present invention, as described above, the guide section 31 for guiding the seed tub container 29 to a fixed position is provided in the hot water squirting section 8 in the hot water tank 2, and the three-dimensional structure is provided. Since the upper end of 32 forms a guiding portion 33 that opens outward, the seed container 29 that has been suspended by the crane 54 and moved onto the hot water tank 2 is roughly aligned on the hot water spraying portion 8. The seed vat container 29 can be placed at a fixed position on the hot water squirting part 8 simply by doing so. In the crane 54, 55 is a guide rail, 56 is a self-propelled body, 57 is a lowering hook, and 58 is an operation controller.

  And in the hot water tank 2, since the upper end part of the raising body 32 of the guide part 31, ie, the guide part 33, is always exposed from the hot water surface, even if the hot water in the hot water tank 2 becomes contaminated, the seed container 29 Is not hindered in the work of placing the hot water at a fixed position on the hot water spraying part 8 and can be carried out easily and reliably.

  Also in the cold water tank 37, a guide portion 47 for guiding the seed container 29 to a fixed position is provided in the cold water spouting portion 40 in the cold water tank 37, and the upper end of the raising body 48 is opened outward. Since the guide portion 49 is formed, the seed vat container 29 suspended by the crane 54 and moved onto the cold water tank 37 is roughly aligned on the cold water spout portion 42, and the seed vat container 29 is sprinkled with the cold water. It can be accurately placed at a fixed position on the portion 42. That is, since it is not necessary to accurately position the seed slag container 29 that has been moved onto the chilled water tank 37 by the crane 54 with respect to the cold water squirting part 42, the seed slag container 29 can be placed on the cold water squirting part 42 without delay. This can greatly contribute to the rapid cooling of the seed pods after disinfection with hot water.

  In the cold water tank 37, since the upper end portion of the raising body 48 of the guide portion 47, that is, the guide portion 49 is always exposed from the cold water surface, even if the cold water in the cold water tank 37 becomes contaminated, the seed container 29 Can be carried out easily and reliably without causing any trouble in the work of placing the water in a fixed position on the cold water spraying part 42.

  The predetermined hot water disinfection temperature in the hot water disinfection machine 1 is set to a specific value within the range of 50 ° C. to 65 ° C., and the soaking time of the seed pod in the hot water is within a range of 5 minutes to 20 minutes, but the hot water disinfection temperature is low. When the temperature is high, set the disinfection time short. For example, from various test data, it is preferable that the disinfection time is 15 minutes at a hot water disinfection temperature of 58 ° C, 10 minutes at 60 ° C, and 5 minutes at 62 ° C.

  The chilled water temperature in the water cooler 36 may be within a range of 20 ° or less and does not freeze, but the water temperature is preferably low in order to rapidly cool the seed culm after hot water disinfection, and is preferably in a flowing water state.

  In addition, when using the hot water tank 2 and the hot water supply control device 3 according to the present invention also for sprouting to promote germination by immersing the seed pod in the hot water, the hot water control temperature is set to 0 to 35 ° C. or 0 to 50 ° C. It shall have the function of the range and the protection upper limit temperature of 37 ° C or 52 ° C.

It is sectional drawing of the hot water disinfection machine which comprises the hot water disinfection apparatus of the seed sow concerning one embodiment of this invention. It is a top view same as the above. It is a perspective view same as the above. It is a schematic sectional drawing of a hot water tank. It is a perspective view which shows a work mode same as the above. It is a perspective view which shows the state in which warm water was polluted. It is a perspective view of the water cooler which comprises a warm water disinfection apparatus. It is a perspective view which shows the state which cold water became polluted. It is a schematic sectional drawing of a cold water tank. It is a conceptual diagram which shows the structure of the hot water disinfection apparatus provided with the crane for work.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hot water disinfection machine 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 DESCRIPTION OF SYMBOLS 15 Hot water suction 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 supply pipe 26 Water supply pipe 27 Overflow port 28 Overflow pipe 29 Seed container 30 Suspension arm 31 Guide part 32 Lifting body 33 Guide part 34 Enclosure frame 35 Drain pipe 36 Water cooler 37 Chilled water tank 38 Water supply machine 39 Snowboard 40 Chilled water storage part 41 Chilled water recirculation part 42 Chilled water spout part 43 Pump 44 Water supply pipe 45 Chilled water return pipe 46 Water supply port 4 Guide part 48 standing 49 induction unit 50 drain pipe 51 drain outlet 52 overflow pipe 53 overflow port 54 crane 55 guide rail 56 self-propelled body 57 lowering hook 58 operable controls

Claims (2)

  A hot water disinfection device for a seed vat comprising a hot water disinfection device for disinfecting seed vats in hot water and a water cooler for cooling seed vats disinfected with hot water disinfection in cold water. A hot water tank provided with a hot water spraying part for sprinkling hot water in the hot water, and a guide part for guiding a porous seed container containing the seeds to be disinfected to a fixed position on the hot water spraying part around the hot water spraying part in the hot water tank. The guide part is formed by a raised solid arranged so as to contact the peripheral surface of the seed container, and the upper end of the raised solid is inclined outward by 20 ° to 60 ° with respect to the vertical surface and opened outward. A hot water disinfection device for seed potatoes characterized in that the induction portion is configured to be exposed on the hot water surface in the hot water tank.   A hot water disinfection device for seed vats comprising a hot water disinfection device that disinfects seed vats in hot water and a water cooler that cools the vats disinfected by hot water disinfection in cold water. A chilled water tank with a chilled water spout unit for sprinkling chilled water, and a guide unit for guiding a porous seed container containing sterilized seed pods to a fixed position on the chilled water spout unit around the chilled water spout unit in the chilled water tank. The guide part is composed of a raised solid arranged so as to be in contact with the peripheral surface of the seed container, and the upper end of the raised solid is inclined outward by 20 ° to 60 ° with respect to the vertical plane and opened outward. A hot water disinfection device for seed potatoes, characterized in that it forms a guiding part, and the guiding part is exposed on the cold water surface in the cold water tank.

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