JP4392918B2 - Cultivation assistance device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a device for assisting cultivation so that cultivation of crops such as vegetables can be advantageously performed.
[0002]
[Prior art]
Disinfection of the soil in the cultivation area with steam can be cultivated advantageously, for example, by killing pathogens and germs and allowing continuous cropping. Moreover, disinfection can be performed while avoiding adverse effects on the global environment as in the case of disinfection with methyl bromide.
Depending on the season and temperature, it can be cultivated advantageously by irrigating with warm water or by heating the inside of the cultivation house to promote the growth of crops.
Disinfection of soil requires higher temperatures than the heating of the cultivation house, and heating of the cultivation house requires a higher temperature than warm water irrigation.
For this reason, conventionally, soil disinfection has been performed by connecting a boiler device to a disinfection device that discharges steam to the medium and disinfects the soil, and supplies disinfection steam. To heat the cultivation house, a heating device such as a burner that heats the house air is installed in the cultivation house, or a heating outdoor unit is connected to the heating device that heats the house air to circulate the heat medium. Was done by doing. Hot water irrigation was performed by heating cold water with a heating device to create hot water for irrigation.
[0003]
[Problems to be solved by the invention]
Conventionally, when performing three types of treatments such as soil disinfection, house warming, and hot water irrigation, and when performing two types of treatments, it is necessary to prepare a device having a dedicated heat source, which increases costs. It was.
It is an object of the present invention to provide a cultivation assistance device that can perform three types of treatment of soil disinfection, house warming, and hot water irrigation at low cost.
[0004]
[Means for Solving the Problems]
The configuration, operation, and effect of the invention according to claim 1 are as follows.
[0005]
〔Constitution〕
A boiler device that creates steam for soil disinfection, and steam and water from this boiler device are mixed to create hot water , and the generated hot water is heated to the heat medium receiving part of the heating device for the cultivation house. A hot and cold water supply device provided with a hot water and water supply portion for receiving hot water from a hot water supply portion supplied as a medium and hot water from a heating medium discharge portion of the heating device and steam from the boiler device, and the hot water and water generation device Irrigation hot water creation device for creating irrigation hot water by mixing excess hot water and water,
A hot water storage tank having the hot water supply section and the hot water receiving section, and a mixing section disposed inside the hot water storage tank so as to create hot water by mixing steam and water from the boiler device. And
A plurality of steam outlets provided in a portion of the branch supply pipe for supplying steam from the boiler device to the hot water storage tank, and the steam from the plurality of steam outlets; The upper end side communicates with the plurality of steam discharge ports so as to be lowered into the tank, and the lower end side covers the hot water storage tank vertical discharge pipe that opens into the hot water storage tank and the outer peripheral surface side of the discharge pipe And an ejector cylinder arranged vertically in the hot water storage tank, the lower end of the discharge cylinder being positioned inside the ejector cylinder, and the outer peripheral surface side of the discharge cylinder and the ejector The cultivation assistance apparatus which forms the gap | interval in the state opened to the inside of the said hot water storage tank in the upper end side and the lower end side of the said ejector cylinder between the inner peripheral surface side of the pipe | tube, and has comprised the said mixing part .
[0006]
[Action]
By connecting the boiler device to the disinfecting device, the disinfecting vapor produced by the boiler device can be supplied to the disinfecting device and released to the soil.
The hot water supply section of the hot water generator is connected to the heating medium receiving section of the heating device, and the hot water receiving section is connected to the heating medium discharge section of the heating apparatus. Then, the hot and cold water producing device mixes the steam and water from the boiler device, creates hot water using the steam from the boiler device as a heat source, circulates and supplies the created hot water to the heating device as a heating medium, and the heating device However, the house is heated by the hot water from the hot water generator.
[0007]
〔effect〕
Soil can be disinfected by obtaining steam for disinfection from the boiler device, and heating in the house can be performed by circulatingly supplying hot water from the hot water preparation device as a heat medium to the heating device.
On the other hand, since the hot water for heating is created by using the steam generated by the boiler device for disinfection as a heat source, a special heating device such as a burner as a heat source for creating the hot water for heating is omitted. Even if it cannot be omitted, it is only necessary to provide a small heat generating device as an auxiliary, and the cost can be reduced.
[0008]
[0009]
[0010]
[0011]
[0012]
[0013]
[0014]
[Action]
Hot water irrigation by irrigation漑温water producing apparatus is by mixing the surplus hot water and water from the hot water producing device with the surplus hot water from the hot water producing device to the heat source to create a hot water for irrigation, to use this hot water for irrigation Will do.
[0015]
〔effect〕
Since by utilizing the surplus hot water from the hot water water producing apparatus to the heat source to create a irrigation hot water, omitting heat or creating hot water for heating, a special heating device such as a burner as a heat source for creating irrigation hot water Even if it cannot be omitted, it is only necessary to provide a small heat generating device as an auxiliary, and the cost can be reduced.
[0016]
[0017]
[0018]
[Action]
When the steam from the boiler device is directly mixed into the water in the hot water storage tank, the steam rapidly changes in temperature and liquefies while generating abnormal noise. On the other hand, the steam from the boiler device passes through the discharge cylinder and is jetted into the ejector cylinder while being cooled by heat exchange with the tank water existing inside the ejector cylinder outside the discharge cylinder. A rapid temperature change at the time of mixing into the tank is suppressed and the generation of abnormal noise is suppressed while mixing into the tank water and liquefies. Further, the steam is ejected into the ejector cylinder to exert an ejecting action, and the water in the tank is caused to flow inside the ejector cylinder. Then, when the steam passes through the discharge cylinder from the boiler device, it always passes while cooling efficiently by heat exchange with the tank water outside the discharge cylinder, and is ejected into the ejector cylinder to the tank water. The mixed steam is effectively suppressed from abrupt temperature changes caused by the mixing, and is always liquefied by mixing into the water in the tank while suppressing the generation of abnormal noise.
[0019]
〔effect〕
It is possible to suppress the occurrence of abnormalities when the steam from the boiler device is mixed into the water in the tank and liquefy, and the steam can be used as a heat source so that the house can be heated at low cost and can be operated as quietly as possible.
[0020]
The structure, operation, and effect of the invention according to claim 2 are as follows.
[0021]
〔Constitution〕
In the configuration of the invention according to the claim 1, it is provided with a reducing device for reducing the excess hot water of the hot water producing device as boiler raw to the boiler device.
[0022]
[Action]
Excess hot water from the hot water producing device is returned to the boiler device as boiler raw water by the reducing device. The hot water producing device creates hot water by condensing the steam from the boiler device so that there is little contamination with foreign matter. Thereby, it is possible to supply water to the boiler device while making it difficult for foreign matter to enter the boiler device and the water softener.
[0023]
〔effect〕
It is difficult for foreign matter to enter the boiler device or water softener, making it difficult to break down, or operating the boiler device while reducing the number of maintenance.
[0024]
DETAILED DESCRIPTION OF THE INVENTION
As shown in FIG. 1, a boiler apparatus 1 having a boiler body 2, a hot water producing apparatus 10 having a hot water storage tank 11 to which a branch supply pipe 4 of a steam supply pipe 3 of the boiler apparatus 1 is connected, and the hot water storage tank An irrigation hot water preparation device 20 to which a hot water supply pipe 12 from 11 is connected, and a reduction device 30 having a reduction main pipe 31 that connects the irrigation hot water preparation device 20 in the middle of the raw water intake pipe 5 of the boiler device 1. The cultivation assistance apparatus is comprised by these.
This cultivation assistance device is for soil disinfection, heating in the house, and warm water irrigation so that it can be cultivated advantageously, such as continuous cultivation of vegetables and forcing cultivation in the cultivation house. It is.
[0025]
The boiler device 1 is constituted by the boiler body 2 and a burner 6 using kerosene or heavy oil as fuel, the raw water intake pipe 5 connected to the raw water receiving portion of the boiler body 2, and the boiler body 2. And the steam supply pipe 3 extending from the steam discharge section. The raw water intake pipe 5 includes a raw water pump P1, a soft water tank 7, a water softener 8, and a solenoid valve V1 located between the raw water intake 5a and the raw water receiving portion of the boiler body, and is pumped by the raw water pump P1. The boiler raw water is taken in from the raw water intake 5 a and softened by the water softener 8, stored in the soft water tank 7, and supplied from the soft water tank 7 to the boiler body 2.
[0026]
The boiler main body 2 converts the boiler raw water supplied from the soft water tank 7 into steam of 100 to 120 degrees C for soil disinfection by heating with the burner 6, and sends the generated steam to the steam supply pipe 3.
[0027]
The steam supply pipe 3 branches between the solenoid valve V2 positioned between the steam discharge port 3a of the steam supply port 3a and the steam discharge section of the boiler body, and between the solenoid valve V2 and the steam discharge section of the boiler body. And the branch supply pipe 4 having the valve V3. The steam discharge port 3a communicates with the disinfection device 40 by connecting a steam supply hose 41 extending from the disinfection device 40 as shown in FIG.
[0028]
As shown in FIG. 1, the disinfection device 40 includes a distribution pipe 42 connected to the steam supply hose 41 and a plurality of steam discharge pipes connected to a plurality of steam discharge parts of the distribution pipe 42. 43. Distribution pipe 42, the steam from the steam supply hose 41 is distributed and supplied to the plurality of vapor discharge pipe 43, the vapor discharge pipes 43, figure alongside the supplied steam in the longitudinal direction of the vapor discharge pipe 43 5 It discharge | releases to soil from the discharge hole 43a like. Thereby, the disinfection apparatus 40 discharge | releases the vapor | steam for disinfection supplied from the boiler apparatus 1 to soil, and heats soil with steam and disinfects it so that a disease germ and various germs may be killed.
[0029]
The hot water producing device 10 is constituted by the hot water storage tank 11 in which the branch supply pipe 4 enters the upper part of the tank, and the mixing unit 13 disposed in the upper part of the tank. The hot water supply part 14, the hot water reception part 15, and the surplus hot water discharge part 16 which were provided in three places where arrangement | positioning levels differ are provided.
[0030]
As clearly shown in FIG. 2, the mixing unit 13 includes a discharge cylinder 17 formed of a flat rectangular tube whose upper end is connected to an end portion of the branch supply pipe 4 located inside the hot water storage tank 11, and this The ejector cylinder 19 is formed of a flat rectangular cylinder whose inner peripheral surface side is connected to spacers 18 connected to a plurality of locations dispersed in the circumferential direction of the discharge cylinder on the outer peripheral surface side of the discharge cylinder 17. is there. The upper end side of the discharge cylinder 17 communicates with the steam discharge port 4 a formed by a plurality of through holes of the branch supply pipe 4, and the lower end side opens inside the ejector cylinder 19. The ejector cylinder 19 covers the outer surface side of the discharge cylinder 17 with a gap D having a size determined by the length of the spacer 18 between the ejector cylinder 17 and the outer peripheral surface side of the discharge cylinder 17, and also has an upper end side and a lower end side. However, it opens inside the hot water storage tank 11. The discharge cylinder 17 is lowered while cooling the steam from the steam discharge port 4 a of the branch supply pipe 4 by heat exchange with the water in the tank existing around the discharge cylinder 17 inside the discharge cylinder 17. The water is jetted into the ejector cylinder at the lower end and mixed with the water in the tank to liquefy the steam, and the water in the tank is heated using the steam as a heat source to create hot water of about 80 degrees C. Further, the steam is ejected into the ejector cylinder 19 and exerts an ejecting action, thereby generating a water flow in which water in the tank flows from the upper end side to the lower end side of the ejector cylinder 19 through the gap D inside the ejector cylinder 19. A relatively low temperature of the tank water is always present around the discharge cylinder 17, and the steam descending the discharge cylinder 17 is effectively cooled.
[0031]
The hot water supply section 14 of the hot water storage tank 11 is connected to a hot water supply pipe 52 extending from a heat medium receiving section 51 of a heating device 50 installed inside the cultivation house, and the hot water reception section 15 is connected to the hot water supply section 15. A hot water return pipe 54 extending from the heat medium discharge portion 53 of the temperature device 50 is connected. When these pipe connections are made, the hot water supply section 14 heats the hot water of about 80 degrees C in the hot water storage tank 11 by the pumping action of the circulation pump P2 provided in the hot water supply pipe 52 and the hot water return pipe 54. The hot water receiving unit 15 supplies hot water from the heating medium discharge unit 53 of the heating device 50 by the pumping action of the heating medium circulation pump P2. It returns to the hot water storage tank 11 and accepts it for mixing with the steam from the boiler device 1.
[0032]
The heating device 50 includes a heat radiating pipe provided with the heat medium receiving portion 51 on one end side and the heat medium discharging portion 53 on the other end side and a plurality of heat radiating plates 55 between them. About 80 degrees C of hot water from the heat medium is caused to flow from the heat medium receiving part 51 to the heat medium discharging part 53 by the pumping action of the heat medium pump P2, and the heat of the hot water is discharged from the heat radiating plate 55 into the house. The cultivation house is warmed by discharging hot water whose temperature has been reduced to about 50 ° C. from the heat medium discharging unit 53.
[0033]
The surplus hot water discharge unit 16 of the hot water storage tank 11 is connected to the irrigation hot water generating device 20 by the hot water supply pipe 12.
[0034]
Thereby, the hot water preparation apparatus 10 discharges the steam of 100 to 120 degrees C supplied from the boiler apparatus 1 to the water in the tank of the hot water storage tank 11 by the mixing unit 13 to mix the steam and the water in the tank. The steam is used as a heat source and the low-temperature water or hot water in the tank is heated to produce hot hot water of about 80 degrees C. The hot water is received from the hot-water supply section 14 by the heating device 50 as a heating medium. The hot water of about 50 degrees C supplied to the unit 51 as a heating heat medium and discharged from the heat medium discharge unit 53 of the heating device 50 is received in the hot water storage tank 11 by the hot water receiving unit 15 and steam from the boiler device 1 is received. Then heat-treat again. When the steam from the boiler device 1 is supplied and the amount of hot water in the hot water storage tank 11 exceeds the set hot water amount set to be necessary for circulating supply to the heating device 50, the water level sensor S1 The hot water supply pump P3 is automatically driven based on the detection result, and the hot water of the excess 50 to 80 degrees C is supplied from the hot water storage tank 11 to the irrigation hot water generator 20 through the hot water supply pipe 12 by the pumping action of the hot water supply pump P3. Supplied.
[0035]
The irrigation hot water preparation device 20 is constituted by an irrigation hot water tank to which the hot water supply pipe 12 is connected and a water supply pipe 21 is connected, and the hot water supply pipe 12 extends from the hot water storage tank 11 of the hot water preparation device 10. The surplus hot water supplied and the cold water supplied by the water supply pipe 21 are mixed in the tank to cool the surplus hot water from the hot water storage tank 11, and the 50 to 80 degree C surplus hot water from the hot water storage tank 11 is used as a heat source. Then, by raising the temperature of the cooling water from the water supply pipe 21, irrigation hot water of 23 to 27 degrees C is created and stored.
[0036]
Connected between the reduction main pipe 31 connected to the surplus hot water discharge part of the hot water tank constituting the irrigation hot water preparation device 20, and between the reduction pump P4 of the reduction main pipe 31 and the electromagnetic valve V4. In addition, a hot water take-out section 23 of the irrigation hot water supply device 20 is constituted by the hot water take-out pipe 22 provided with the electromagnetic valve V5. When the irrigation hot water created and stored by the irrigation hot water generating device 20 exceeds the set storage amount, the reduction pump P4 is automatically driven based on the detection result by the water level sensor S2, and the action of the reduction pump P4 causes the movement of 23 to 27. The irrigated hot water of degree C is taken out from the irrigated hot water producing device 20 to the reduction main pipe 31, and the irrigated hot water can be taken out from the hot water take-out tube 22 to an irrigation hose or a spraying device.
[0037]
The reduction device 30 connects the hot water storage tank 11 to the irrigation hot water preparation device 20, and also includes the hot water supply pipe 12 including the hot water supply pump P3 and a check valve V6, the irrigation hot water preparation device 20, The main pipe 31 is connected to the surplus hot water discharge section of the irrigation hot water generator 20 and includes the reduction main pipe 31 provided with the reduction pump P3. That is, when the hot water generated and stored by the hot water generator 10 exceeds the set amount of hot water and the hot water generated and stored by the irrigation hot water generator 20 exceeds the set amount of storage, the surplus from the hot water generator 10 Hot water is supplied to the boiler body 2 of the boiler device 1 as boiler raw water by supplying hot water to the raw water intake pipe 5 by the action of the hot water supply pump P3 and the reduction pump P4.
[0038]
That is, when the boiler apparatus 1 is operated by connecting the raw water intake 5a of the raw water intake pipe 5 to a water supply source such as a tap water channel or a well, the boiler apparatus 1 creates steam for soil disinfection in the boiler body 2. .
And in order to perform soil disinfection, the said steam supply hose 41 is connected to the steam discharge port 3a of the steam supply pipe 3 of the boiler apparatus 1, and the solenoid valve V2 of the steam supply pipe 3 is switched to the open side. Then, the boiler apparatus 1 supplies 100-120 degree C vapor | steam for disinfection to the disinfection apparatus 40, This disinfection apparatus 40 discharge | releases vapor | steam to soil, and performs disinfection processing.
[0039]
In order to perform heating or hot water irrigation of the cultivation house, the hot water supply pipe 52 is connected to the hot water supply section 14 of the hot water generator 11 and the hot water return pipe 54 is connected to the hot water reception section 15, respectively. The solenoid valve V3 is switched to the open side. Then, the boiler apparatus 1 supplies steam of 100 to 120 degrees C to the hot water preparation apparatus 10, and the hot water preparation apparatus 10 uses hot water of about 80 degrees C by the steam from the boiler apparatus 1 and the water in the tank of the hot water storage tank 11. This hot water is circulated and supplied as a heating heat medium to the heating device 50 through the hot water feed pipe 52 and the hot water return pipe 54 by the action of the circulation pump P2, and the heating device 50 supplies the hot water preparation device 10 with the hot water. The inside of the house is heated by the thermal energy of hot water from At the same time, the hot water producing device 10 supplies surplus hot water of 50 to 80 degrees C to the irrigation hot water producing device 20 through the hot water supply pipe 12 by the action of the hot water supply pump P3. The hot water from 10 and the cold water from the water supply pipe 21 are used to create and store irrigation hot water of 23 to 27 degrees C. When the amount of hot water stored in the irrigation hot water producing device 20 exceeds the set amount, the reduction device 30 returns the irrigation hot water to the boiler device 1 as boiler raw water by the reduction pump P4. At this time, by closing the electromagnetic valve V4 of the reduction main pipe 31 and opening the electromagnetic valve V5 of the hot water outlet 23, the irrigated hot water from the irrigation hot water generator 20 is supplied to the hot water outlet pipe 22, It can be taken out from the hot water take-out pipe 22 or supplied to a spraying device to irrigate the cultivation area.
[0040]
[Another embodiment]
[0041]
[0042]
[0043]
FIG. 4 shows a cultivation assistance device provided with another embodiment, and this cultivation assistance device is connected to a boiler device 1 having a boiler body 2 and a branch pipe 5b of a raw water intake pipe 5 of the boiler device 1. A hot water generator 10 having a hot water generator main body 11, an irrigation hot water generator 20 to which a hot water supply pipe 12 from the hot water generator main body 11 is connected, and the irrigation hot water generator 20 are used to take in raw water of the boiler device 1. The reduction apparatus 30 includes a reduction main pipe 31 connected in the middle of the pipe 5. This cultivation assistance device is for performing soil disinfection, warming in the house, and warm water irrigation, and is configured in detail as follows.
[0044]
The boiler device 1 is constituted by the boiler body 2 and a burner 6 using kerosene or heavy oil as fuel, the raw water intake pipe 5 connected to the raw water receiving portion of the boiler body 2, and the boiler body 2. And a steam supply pipe 3 extending from the steam discharge section. The raw water intake pipe 5 includes a raw water pump P1, a supply switching valve V7, a soft water tank 7, a water softener 8, and a solenoid valve V1 located between the raw water intake 5a and the raw water receiving portion of the boiler body. By the pumping action of P1, raw water is taken from the raw water intake 5a and softened by the water softener 8, and then stored in the soft water tank 7, supplied from the soft water tank 7 to the boiler body 2, or hot water from the branch pipe 5b. This is supplied to the creation apparatus main body 11.
[0045]
The boiler main body 2 converts the boiler raw water supplied from the soft water tank 7 into steam of 100 to 120 degrees C for soil disinfection by heating with the burner 6, and sends the generated steam to the steam supply pipe 3.
[0046]
The steam supply pipe 3 includes an electromagnetic valve V2 positioned between the steam discharge port 3a and the steam discharge portion of the boiler body 2. The steam outlet 3a communicates with the disinfection device 40 by connecting a steam supply hose 41 extending from the disinfection device 40 similar to the disinfection device 40 shown in FIG.
[0047]
Thus, by connecting the steam supply hose 41 to the steam discharge port 3 a of the steam supply pipe 3, the boiler apparatus 1 supplies the steam produced by the boiler body 2 to the disinfection apparatus 40 from the steam supply pipe 3.
[0048]
The hot water producing device 10 is constituted by the hot water producing device main body 11 in which the branch pipe 5b is connected to the raw water intake portion, and a burner 10a using kerosene or heavy oil as fuel, and the hot water producing device main body 11 A hot water supply section 14, a hot water receiving section 15, and an excess hot water discharge section 16 provided at three locations with different arrangement levels are provided.
[0049]
The hot water generator main body 11 turns the raw water supplied from the branch pipe 5b into hot water of about 80 degrees C by heating with the burner 10a, and stores this hot hot water.
[0050]
The hot water supply section 14, the hot water receiving section 15, and the excess hot water discharge section 16 of the hot water generator main body 11 are configured in the same manner as those of the hot water storage tank 11 of FIG. That is, the hot-water supply part 14 connects the hot-water supply pipe 52 extended from the heat-medium reception part 51 of the heating apparatus 50 similar to the heating apparatus 50 of FIG. 1 installed in the inside of a cultivation house, and receives hot water. The unit 15 connects a hot water return pipe 54 extending from the heat medium discharge unit 53 of the heating device 50. When these pipe connections are made, the hot water supply section 14 supplies hot water of about 80 degrees C from the inside of the hot water generator 11 by the pumping action of the circulation pump P2 provided in the hot water supply pipe 52 and the hot water return pipe 54. The heating medium receiving section 51 of the heating device 50 is supplied as a heating medium for heating, and the hot water receiving section 15 is supplied with the heating medium discharge section 53 of the heating apparatus 50 by the pumping action of the heating medium circulation pump P2. The hot water from is returned to the hot water generator main body 11 and reheated by the burner 10a. The surplus hot water discharge part 16 is connected to the irrigation hot water preparation apparatus 20 by the hot water supply pipe 12.
[0051]
The irrigation hot water generator 20 is configured in the same manner as the irrigation hot water generator 20 of FIG.
[0052]
The reduction device 30 is configured in the same manner as the reduction device 30 of the cultivation assistance device in FIG.
[0053]
The hot water extraction unit 23 of the irrigation hot water preparation device 20 is configured in the same manner as that of the irrigation hot water preparation device 20 shown in FIG.
[0054]
That is, the raw water intake 5a of the raw water intake pipe 5 is connected to a water supply source such as a tap water channel or a well.
In order to perform soil disinfection, the supply switching valve V7 is switched to a state in which the soft water tank 7 communicates with the boiler body 2, the boiler device 1 is operated, and the steam discharge port 3a of the steam supply pipe 3 of the boiler device 1 is connected to the steam discharge port 3a. The steam supply hose 41 is connected to switch the solenoid valve V2 of the steam supply pipe 3 to the open side. Then, the boiler apparatus 1 creates steam of 100 to 120 degrees C for soil disinfection in the boiler body 2 and supplies the steam to the disinfection apparatus 40 from the steam supply pipe 3, and the disinfection apparatus 40 releases the steam to the soil to disinfect. Process.
[0055]
In order to perform heating or hot water irrigation of the cultivation house, the supply switching valve V7 is switched to a state in which the soft water tank 7 communicates with the hot water producing device main body 11, the hot water producing device 10 is operated, and the hot water feeding device 11 of the hot water producing device 11 is operated. 14 is connected to the hot water supply pipe 52 and the hot water return pipe 54 is connected to the hot water receiving section 15. Then, the hot water producing device 10 heats the raw water from the soft water tank 7 with the burner 10a to produce hot water of about 80 degrees C. The hot water is supplied to the hot water feed pipe 52 and the hot water return pipe 54 by the action of the circulation pump P2. The heating device 50 is circulated and supplied to the heating device 50 as a heating medium, and the heating device 50 heats the inside of the house with the thermal energy of the hot water from the hot water generator 10. At the same time, the hot water producing device 10 supplies surplus hot water of 50 to 80 degrees C to the irrigation hot water producing device 20 through the hot water supply pipe 12 by the action of the hot water supply pump P3. The hot water from 10 and the cold water from the water supply pipe 21 are used to create and store irrigation hot water of 23 to 27 degrees C. When the amount of hot water stored in the irrigation hot water preparation device 20 exceeds a set amount, the reduction device 30 supplies the irrigation hot water to the upstream side of the water softener 8 of the raw water intake pipe 5 by the reduction pump P4, thereby producing the hot water preparation device 10. To raw water. At this time, by closing the electromagnetic valve V4 of the reduction main pipe 31 and opening the electromagnetic valve V5 of the hot water outlet 23, irrigated hot water from the irrigation hot water generator 20 is supplied to the hot water outlet pipe 22, It can be taken out from the hot water take-out pipe 22 or supplied to a spraying device to irrigate the cultivation area.
[0056]
In order to enable house heating and hot water irrigation by using both a heat source for generating hot water for house heating and a heat source for generating irrigation hot water, a heating burner 10a and a boiler 10a are used as the hot water generation device 10. In addition to adopting a body having a hot water producing device main body 11 composed of a hot water storage tank heated at, a boiler device for creating hot water as a heating medium may be employed. Therefore, the hot water storage tank type and the boiler type are collectively referred to as the hot water producing apparatus 10.
[0057]
FIG. 6 shows a heating device 50 having another embodiment. The heating device 50 has a heat medium receiving portion 51 for receiving hot water from the hot water feed pipe 52 at one end, and the heat medium receiving portion 51. The heat exchange pipe 56 having a heat medium discharge portion 53 for discharging hot water from the hot water return pipe 54 on the other end side and a heat radiation fin 55 between them is provided from one side surface side of the heat exchange pipe 56. It is comprised with the rotation fan 57 which supplies warm air to a cultivation house by ventilating to the other.
[Brief description of the drawings]
[Fig. 1] Schematic diagram of the whole cultivation auxiliary device [Fig. 2] Longitudinal sectional view of the mixing section of the hot water producing device [Fig. 3] Cross sectional view of the mixing portion of the hot water producing device [Fig. 4] Cultivation with another embodiment Schematic diagram of the entire auxiliary device [FIG. 5] Cross-sectional view of the disinfection device in use [FIG. 6] Cross-sectional view of a heating device provided with another embodiment [Explanation of symbols]
1 Boiler equipment
4- branch supply pipe
4a Steam discharge port 10 Hot water preparation device 11 Hot water storage tank 13 Mixing unit 14 Hot water delivery unit 15 Hot water reception unit 17 Discharge tube 19 Ejector tube 20 Irrigation hot water preparation device 30 Reduction device 50 Heating device 51 Heat medium reception unit 53 Heat medium discharge unit D gap

Claims (2)

A boiler device that creates steam for soil disinfection, and steam and water from this boiler device are mixed to create hot water , and the generated hot water is heated to the heat medium receiving part of the heating device for the cultivation house. A hot and cold water supply device provided with a hot water and water supply portion for receiving hot water from a hot water supply portion supplied as a medium and hot water from a heating medium discharge portion of the heating device and steam from the boiler device, and the hot water and water generation device Irrigation hot water creation device for creating irrigation hot water by mixing excess hot water and water,
A hot water storage tank having the hot water supply section and the hot water receiving section, and a mixing section disposed inside the hot water storage tank so as to create hot water by mixing steam and water from the boiler device. And
A plurality of steam outlets provided in a portion of the branch supply pipe for supplying steam from the boiler device to the hot water storage tank, and the steam from the plurality of steam outlets; The upper end side communicates with the plurality of steam discharge ports so as to be lowered into the tank, and the lower end side covers the hot water storage tank vertical discharge pipe that opens into the hot water storage tank and the outer peripheral surface side of the discharge pipe And an ejector cylinder arranged vertically in the hot water storage tank, the lower end of the discharge cylinder being positioned inside the ejector cylinder, and the outer peripheral surface side of the discharge cylinder and the ejector The cultivation assistance apparatus which forms the gap | interval in the state opened to the inside of the said hot water storage tank in the upper end side and the lower end side of the said ejector cylinder between the inner peripheral surface side of the pipe | tube, and has comprised the said mixing part . The cultivation assistance apparatus of Claim 1 provided with the reduction | restoration apparatus which reduce | restores the excess hot water of the said hot-water production apparatus to the said boiler apparatus as boiler raw water .

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