KR102753734B1 - Geothermal cultivation house - Google Patents

Abstract

The present invention relates to a cultivation house using geothermal heat, and more specifically, to a house body having a cultivation space inside, a geothermal pipe installed underground, a first air blower pipe for connecting one end of the geothermal pipe to the cultivation space, and a second air blower pipe for connecting the other end of the geothermal pipe to the cultivation space.
According to the present invention as described above, air in the cultivation space is sucked in through the first blower pipe by a convection phenomenon and the air in the geothermal pipe is discharged through the second blower pipe, so that geothermal heat is provided to the cultivation space, thereby providing an environment suitable for cultivation.

Description

Geothermal cultivation house

The present invention relates to a cultivation house, and more specifically, to a cultivation house utilizing geothermal heat, in which air in a cultivation space is sucked in through a first air pipe by a convection phenomenon and air in a geothermal pipe is discharged through a second air pipe so that geothermal heat is provided to the cultivation space, thereby providing an environment suitable for cultivation.

In general, the temperature of the ground at a certain depth from the surface is maintained at a constant temperature of 14 to 16℃ regardless of the season, and since it is blocked from the atmosphere and prevents moisture from evaporating due to sunlight or wind, the appropriate humidity is maintained at a constant temperature of 14 to 16℃.

Usually, in order to save on fuel costs, etc., crushed stone, recycled aggregate, PCM (Phase Change Material) etc. are buried underground to take in air from the internal space and supply it to houses, greenhouses, etc. for heating and cooling.

A number of devices related to this technology have been proposed, among which, the previous Republic of Korea Utility Model Publication No. 20-0369543 discloses a duct-type heating and cooling system utilizing geothermal heat, which comprises a geothermal exchanger having a plurality of heat exchange pipes formed therein and buried at a certain depth underground, an intake duct extending upwardly through a first connection duct on one side of the geothermal exchanger and connected to the lower part of a building structure, an exhaust duct extending upwardly through a second connection duct on the other side of the geothermal exchanger and connected to the upper part of the building structure, and a discharge fan installed in the second connection duct to form a flow of heat exchange air, wherein crushed stone is filled in the external space between the plurality of heat exchange pipes formed in the geothermal exchanger, and cooling water is filled through a cooling water supply unit so that heat exchange occurs between the air in the heat exchange pipes and the geothermal heat.

However, in the case of conventional duct-type heating and cooling systems using geothermal heat, there is a problem of ineffectiveness due to the continuous cost incurred for operation and maintenance as cooling water must be continuously supplied to the crushed stone around the geothermal heat exchanger.

In other words, conventional heating and cooling systems have the disadvantage of increasing energy consumption due to the need for a power source to supply water to underground structures, depleting groundwater, and causing secondary pollution in the vicinity of underground structures that spray this groundwater.

In addition, since large quantities of crushed stone, recycled aggregate, and thermal storage materials are buried and operated, it is easy for bacteria to breed as if they were landfilled, and harmful gases are generated as a result. As a result, the murky and harmful air is blown into the interiors of buildings or greenhouses, which can cause additional pollution that is fatal to living things in buildings or greenhouses.

Accordingly, there is an urgent need for the development of technologies that utilize geothermal heat but are easy to operate and maintain and can prevent and minimize pollution, etc.

Accordingly, the present invention has been made to solve the above-mentioned problems, and provides a cultivation house utilizing geothermal heat, comprising: a house body having a cultivation space inside; a geothermal pipe installed underground; a first air blower for connecting one end of the geothermal pipe with the cultivation space; and a second air blower for connecting the other end of the geothermal pipe with the cultivation space, wherein air in the cultivation space is sucked in through the first air blower by convection and the air in the geothermal pipe is discharged through the second air blower, so that geothermal heat is provided to the cultivation space to provide an environment suitable for cultivation.

The present invention for achieving the above-mentioned purpose comprises a house body having a cultivation space inside, a geothermal pipe installed underground, a first air blower pipe for connecting one end of the geothermal pipe to the cultivation space, and a second air blower pipe for connecting the other end of the geothermal pipe to the cultivation space.

Preferably, when a temperature difference occurs between the air inside the geothermal pipe that has been heat-exchanged by geothermal heat and the air in the cultivation space, the air in the cultivation space is sucked in through the first blower pipe by a convection phenomenon and the air in the geothermal pipe is discharged through the second blower pipe, thereby providing geothermal heat to the cultivation space.

In addition, the above geothermal pipe, the first blower pipe, and the second blower pipe are corrugated pipes.

And the above geothermal pipe, first blower pipe and second blower pipe are made of polyethylene (PE).

Additionally, the geothermal pipe, the first blower pipe, and the second blower pipe are coated with aluminum film.

And the geothermal pipe includes a geothermal main pipe buried underground, a first geothermal connection pipe connecting one end of the geothermal main pipe to a first blower pipe, and a second geothermal connection pipe connecting the other end of the geothermal main pipe to a second blower pipe.

In addition, the geothermal main pipes are arranged in multiples so as to be spaced apart from each other at a constant interval, the first geothermal connection pipe connects one end of each geothermal main pipe to the first blower pipe, and the second geothermal connection pipe connects the other end of each geothermal main pipe to the second blower pipe.

And each of the above geothermal main pipes is arranged to be spaced apart from each other horizontally at a certain interval, and the first geothermal connection pipe and the second geothermal connection pipe are installed to be perpendicular to the longitudinal direction of the above geothermal main pipe, and the other end of the first geothermal connection pipe is formed to protrude outside the geothermal main pipe.

Additionally, the first blower pipe is connected to the other end of the first geothermal connection pipe, and the second blower pipe is connected to the central portion of the second geothermal connection pipe.

And it further includes a blower for sucking in air from the cultivation space, passing it through the geothermal pipe for heat exchange, and then expelling it again.

In addition, the second blower pipe has an upper portion that is bent so that air is discharged laterally, and the blower portion is a blower fan and is provided at the upper portion of the second blower pipe.

And it further includes a temperature sensor installed in the ground to measure temperature, and a blower control unit that receives a measurement value of the temperature sensor and controls the blower unit.

In addition, it further includes a reinforcing member that maintains the spacing between each arranged geothermal main pipe and can improve the load-bearing capacity.

And the above-mentioned reinforcing member includes a reinforcing frame having a certain thickness and arranged to cross the arranged geothermal main pipes, and a reinforcing mounting groove formed in the reinforcing frame so that each of the geothermal main pipes is mounted.

In addition, the above-mentioned reinforcing anchoring groove is open toward the bottom and is installed from top to bottom in the arranged geothermal main pipes.

And the geothermal main pipe, the first geothermal connection pipe, and the second geothermal connection pipe, which are arranged at a set interval in the horizontal direction, are further arranged at a set interval in the vertical direction by at least one more, and further include a first geothermal extension pipe that mutually connects the first geothermal connection pipes arranged vertically, and a second geothermal extension pipe that mutually connects the second geothermal connection pipes arranged vertically.

In addition, a collection well is provided on the lower side of the other end of the first geothermal connection pipe so that condensation water generated when air that has exchanged heat with the geothermal heat through the first blower pipe comes into contact with the air in the cultivation space is collected.

In addition, the first blower pipe, the first geothermal connection pipe, and the second geothermal connection pipe are formed with the same diameter, and the diameter of the second blower pipe is formed smaller than the diameter of the first blower pipe.

And each of the above geothermal main pipes includes a plurality of unit geothermal pipes having a certain length, and a unit geothermal connecting part for interconnecting two adjacent unit geothermal pipes.

In addition, the unit geothermal connection part includes a first flange fitted to an end of one unit geothermal pipe, a second flange fitted to an end of another unit geothermal pipe corresponding to the first flange, a fixing member that mutually connects the first flange and the second flange, and packing for sealing between the first flange and the second flange and between each flange and the corresponding unit geothermal pipe.

And it further includes a protective cover that covers and protects the outer side of the first flange and the second flange connected by the above-mentioned fixed member.

In addition, the protective cover includes a protective cover body that is rotatably connected to each other and covers the first flange and the second flange, and a cover clamp that fastens the protective cover body.

And the above cover clamp is used as a lever latch clamp.

In addition, at least one of the first blower pipe and the second blower pipe includes a backflow prevention unit to prevent the blown air from flowing backwards.

And the above-described backflow prevention unit includes a backflow prevention frame installed in the corresponding blower pipe, a one-way valve formed in the center of the backflow prevention frame and blowing air in one direction, and a plurality of discharge holes formed along the edge of the backflow prevention frame and blowing out air blown back inside the corresponding blower pipe, and the air discharged through the discharge holes is blown again together with the air blown by the one-way valve.

In addition, each of the above discharge holes is formed to be inclined toward the center of the backflow prevention frame from the bottom to the top.

According to the cultivation house utilizing geothermal heat according to the present invention, air in the cultivation space is sucked in through the first blower pipe by a convection phenomenon and the air in the geothermal pipe is discharged through the second blower pipe so that geothermal heat is provided to the cultivation space, thereby providing an environment suitable for cultivation, which is a very useful and effective invention.

Figure 1 is a drawing illustrating a cultivation house using geothermal heat according to the present invention.
Figure 2 is a drawing illustrating a geothermal pipe according to the present invention.
Figure 3 is a drawing showing a state in which a blower according to the present invention is further provided.
Figure 4 is a drawing showing a reinforcing part according to the present invention.
FIG. 5 is a drawing showing another embodiment of a geothermal pipe according to the present invention.
Figure 6 is a drawing illustrating a geothermal main pipe according to the present invention.
Figure 7 is a drawing showing another embodiment of a geothermal pipe according to the present invention.
Figure 8 is a drawing showing a state in which a backflow prevention unit according to the present invention is further provided.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The detailed description set forth below with the accompanying drawings is intended to explain exemplary embodiments of the present invention and is not intended to represent the only embodiments in which the present invention may be practiced. The following detailed description includes specific details in order to provide a thorough understanding of the present invention. However, one of ordinary skill in the art will appreciate that the present invention may be practiced without these specific details.

In some cases, to avoid obscuring the concept of the present invention, well-known structures and devices may be omitted or illustrated in block diagram format focusing on the core functions of each structure and device.

Throughout the specification, when a part is said to "comprising" or "including" a certain element, this does not mean that other elements are excluded, but rather that other elements can be included, unless otherwise stated. Furthermore, the term "part" described in the specification means a unit that processes at least one function or operation. Furthermore, the terms "a" or "an", "one", "the" and similar related words may be used in the context of describing the present invention (especially in the context of the claims below) to include both the singular and the plural, unless otherwise indicated herein or clearly contradicted by context.

In describing embodiments of the present invention, if it is judged that a detailed description of a known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. In addition, the terms described below are terms defined in consideration of functions in the embodiments of the present invention, and these may vary depending on the intention or custom of the user or operator. Therefore, the definitions should be made based on the contents throughout this specification.

Hereinafter, preferred embodiments of the present invention will be described with reference to the attached drawings.

FIG. 1 is a drawing illustrating a cultivation house using geothermal heat according to the present invention, FIG. 2 is a drawing illustrating a geothermal pipe according to the present invention, FIG. 3 is a drawing illustrating a state in which a blower according to the present invention is further provided, FIG. 4 is a drawing illustrating a reinforcement according to the present invention, FIG. 5 is a drawing illustrating another embodiment of a geothermal pipe according to the present invention, FIG. 6 is a drawing illustrating a geothermal main pipe according to the present invention, FIG. 7 is a drawing illustrating another embodiment of a geothermal pipe according to the present invention, and FIG. 8 is a drawing illustrating a state in which a backflow prevention part according to the present invention is further provided.

As shown in the drawing, the cultivation house (10) utilizing geothermal heat includes a house body (100), a geothermal pipe (200), a first ventilation pipe (300), and a second ventilation pipe (400).

The house body (100) has a cultivation space (102) formed inside.

And the geothermal pipe (200) is installed underground and can be installed anywhere underground, but it is preferable to install it underground below the cultivation space (102).

The first blower pipe (300) is provided to connect one end of the geothermal pipe (200) to the cultivation space (102).

In addition, the second blower pipe (400) is provided to connect the other end of the geothermal pipe (200) to the cultivation space (102).

Looking at the operating state of the cultivation house (10) utilizing geothermal heat, when a temperature difference occurs between the air inside the geothermal pipe (200) that has been heat-exchanged by geothermal heat and the air in the cultivation space (102), the air in the cultivation space (102) is sucked in through the first blower pipe (300) by a convection phenomenon and the air in the geothermal pipe (200) is discharged to the second blower pipe (400), so that geothermal heat is provided to the cultivation space (102).

Here, the geothermal pipe (200), the first blower pipe (300), and the second blower pipe (400) are preferably made of corrugated pipes and made of polyethylene (PE).

In addition, the geothermal pipe (200), the first blower pipe (300), and the second blower pipe (400) are coated with aluminum film to improve thermal conductivity and thereby enhance heat exchange rate.

In addition, the geothermal pipe (200) includes a geothermal main pipe (210), a first geothermal connection pipe (220), and a second geothermal connection pipe (230), as illustrated in FIG. 2.

The geothermal main pipe (210), the first geothermal connection pipe (220), and the second geothermal connection pipe (230) are buried underground.

And the first geothermal connection pipe (220) connects one end of the geothermal main pipe (210) to the first blower pipe (300).

The second geothermal connection pipe (230) connects the other end of the geothermal main pipe (210) to the second blower pipe (400).

At least one of these geothermal main pipes (210) is formed, and if two or more are formed, they are arranged to be spaced apart from each other at a certain interval.

And the first geothermal connection pipe (220) connects one end of each geothermal main pipe (210) to the first blower pipe (300), and the second geothermal connection pipe (230) connects the other end of each geothermal main pipe (210) to the second blower pipe (400).

In one embodiment, at least two geothermal main pipes (210) are formed and arranged to be spaced apart from each other horizontally, and the first geothermal connection pipe (220) and the second geothermal connection pipe (230) are installed to be orthogonal to the longitudinal direction of the geothermal main pipe (210).

Here, the other end of the first geothermal connection pipe (220) is formed to protrude outside the geothermal main pipe (210).

When examining the convection phenomenon of the cultivation house (10) utilizing geothermal heat, the air of the cultivation space (102) flowing in through the first blower pipe (300) is easily branched and blown into multiple geothermal main pipes (210) through the first geothermal connection pipe (220).

And the air that passes through each geothermal main pipe (210) and exchanges heat with the geothermal heat is combined into the second geothermal connection pipe (230) and discharged to the second blower pipe (400).

Accordingly, the temperature of the cultivation space (102) can be maintained at a temperature suitable for cultivation.

Of course, the cultivation house (10) using geothermal heat further includes a blower (600), as shown in Fig. 3.

This blower (600) sucks in air from the cultivation space (102), passes it through the geothermal pipe (200), exchanges heat, and then discharges it again.

Here, the upper part of the second blower pipe (400) is bent so that air is discharged laterally.

The blower (600) is a blower fan (610) installed at the upper end of the second blower pipe (400) to generate discharge pressure to draw in air from the cultivation space (102) through the first blower pipe (300) and circulate the heat-exchanged air of each geothermal main pipe (210).

And the cultivation house (10) using geothermal heat further includes a temperature sensor (620) and a ventilation control unit (630).

A temperature sensor (620) is installed underground and provided to measure temperature.

Of course, the temperature sensor (620) is also provided to measure the temperature of the cultivation space (102).

Additionally, the blower control unit (630) receives the measurement value of the temperature sensor (620) and controls the blower unit (600).

It is preferable that the measurement values of each of these temperature sensors (620) be received by the blower control unit (630) to determine whether to operate the blower fan (610).

Here, the motor driving the blower fan (610) can control the rotation speed and also rotate in the opposite direction.

Accordingly, if necessary, the air in the cultivation space (102) can be sucked into the second blower pipe (400) by rotating it in the opposite direction, pass through the geothermal main pipe (210), and then be discharged through the first blower pipe (300).

The first blower pipe (300) is connected to the other end of the first geothermal connection pipe (220), and the second blower pipe (400) is connected to the central portion of the second geothermal connection pipe (230).

In other words, the first blower pipe (300) is connected to the other end of the first geothermal connection pipe (220) protruding outside the geothermal main pipe (210).

This is to prevent condensation water from flowing into the geothermal main pipe (210), as this may occur when the incoming air comes into contact with the air located in the ground.

For this purpose, the cultivation house (10) using geothermal heat further includes a water collection well (500).

In this collection tank (500), condensation may occur when the air in the cultivation space (102) flowing into the first blower pipe (300) and the air inside the first geothermal connection pipe (220) come into contact with each other.

This condensation water falls into the collection well (500) and is collected, preventing it from flowing into the first geothermal connection pipe (220) and the geothermal main pipe (210).

This collection well (500) is provided on the lower side of the other end of the first geothermal connection pipe (220), and is preferably located on the lower side of the first blower pipe (300) to easily induce collection.

It is desirable to periodically discharge the condensate collected in this collection tank (500) using a separate pump, and it is also natural that a separate water level sensor (not shown) can be installed to automatically discharge the water when a certain water level is reached.

Here, the depth at which the geothermal main pipe (210) is installed is 1 to 20 m from the ground, and as an example, it is preferable to bury it at a depth of 1.5 to 2 m.

And the spacing between each geothermal main pipe (210) is 4 to 6 m, and as an example, it is preferable to install them at 5 m intervals.

Accordingly, it is desirable to prevent the geothermal temperature to be exchanged from dropping by ensuring that the geothermal heat is transmitted to each geothermal main pipe (210) and that adjacent geothermal main pipes (210) do not interfere with each other.

The first blower pipe (300), the first geothermal connection pipe (220), and the second geothermal connection pipe (230) are formed with the same diameter, and the diameter of the second blower pipe (400) is formed smaller than the diameter of the first blower pipe (300).

Accordingly, the speed of air discharged through the second blower pipe (400) can be increased, thereby inducing easy discharge.

Of course, the diameter of each tube may be formed the same or different depending on the case.

And the geothermal pipe (200) further includes a reinforcing member (240), as illustrated in FIG. 4.

This reinforcing member (240) maintains the spacing between the multiple arranged geothermal main pipes (210) and can improve the load bearing capacity.

This reinforcing member (240) includes a reinforcing frame (242) and a reinforcing fixing groove (244).

The reinforcing frame (242) has a certain thickness and is provided to cross the arranged geothermal main pipes (210).

And a reinforcing fixing groove (244) is formed in the reinforcing frame (242) so that each geothermal main pipe (210) is fixed therein.

This reinforcing anchoring groove (244) is open toward the bottom and is installed from top to bottom in the arranged geothermal main pipes (210).

Since the reinforcing frame (242) has a certain thickness and is plate-shaped, it can be installed by pressing it into the ground, and can be easily installed by pressing it from the top to the bottom of the arranged geothermal main pipes (210).

The positions of the geothermal main pipes (210) arranged by these reinforcing members (240) can be maintained, thereby sustaining the effect.

These geothermal pipes (200), first air blower pipes (300) and second air blower pipes (400) are provided one or more in one cultivation space (102). As an example, two of each are installed, but the positions of each first air blower pipe (300) are installed in reverse order to induce a convection phenomenon to occur smoothly in the cultivation space (102).

And as illustrated in Fig. 5, the geothermal main pipe (210), the first geothermal connection pipe (220), and the second geothermal connection pipe (230) arranged at regular intervals in the horizontal direction are further arranged at regular intervals of at least one in the vertical direction.

As an example, two are installed in each of the upper and lower directions, and a first geothermal heating pipe (250) and a second geothermal heating pipe (260) are further included.

The first geothermal connection pipe (250) connects the first geothermal connection pipes (220) arranged vertically to each other.

And the second geothermal connection pipe (260) connects the second geothermal connection pipes (230) arranged vertically to each other.

Accordingly, by connecting the geothermal main pipes (210) of each floor and allowing the heat-exchanged air to pass through and circulate to the cultivation space (102), an environment suitable for cultivation can be provided.

Each of these geothermal main pipes (210) includes a unit geothermal pipe (212) and a unit geothermal connection part (214), as illustrated in FIG. 6.

The unit geothermal heat pipe (212) has a certain length and is provided in multiple numbers.

And the unit geothermal connection part (214) is provided to interconnect two adjacent unit geothermal pipes (212).

This unit geothermal connection (214) includes a first flange (2141), a second flange (2142), a fixing member (2143), and a packing (2144).

The first flange (2141) is fitted to the end of one unit geothermal pipe (212).

And the second flange (2142) is fitted to the end of another unit geothermal pipe so as to correspond to the first flange (2141).

The fixed member (2143) connects the first flange (2141) and the second flange (2142) to each other.

Additionally, the packing (2144) seals between the first flange (2141) and the second flange (2142) and between each flange (2141, 2142) and the corresponding unit geothermal pipe (212).

And it further includes a protective cover (216).

This protective cover (216) covers and protects the outer side of the first flange (2141) and the second flange (2142) joined by a fixed member.

This protective cover (216) includes a protective cover body (2162) and a cover clamp (2164).

The protective cover body (2162) is installed to cover the first flange (2141) and the second flange (2142).

This protective cover body (2162) is made of a material with elasticity by cutting out a portion or is connected to each other so as to be rotatably connected.

And the cover clamp (2164) fastens the protective cover body (2162).

Here, it is preferable that the cover clamp (2164) be used as a lever latch clamp, but it is also possible to use other types of clamps.

In addition, as illustrated in Fig. 7, the geothermal main pipe (210) is installed at an angle, and is installed with an upward angle from the end connected to the first blower pipe (300) through which air from the cultivation space (102) is introduced to the end connected to the second blower pipe (400) through which air is discharged.

Accordingly, the introduced air can be easily blown toward the second blower pipe (400), thereby improving the blowing efficiency.

And, if condensation exists in the geothermal main pipe (210), it can be guided to be collected into the collection well (500).

In addition, as shown in Fig. 8, the cultivation house (10) using geothermal heat further includes a backflow prevention unit (700).

This backflow prevention device (700) is installed in at least one of the first blower pipe (300) and the second blower pipe (400) to prevent the blown air from flowing back and generating back pressure.

This backflow prevention unit (700) includes a backflow prevention frame (710), a one-way valve (720), and a discharge hole (730).

A backflow prevention frame (710) is installed in the corresponding blower pipe.

And the one-way valve (720) is formed in the center of the backflow prevention frame (710) and blows air in one direction.

A plurality of discharge holes (730) are formed along the edge of the backflow prevention frame (710) so that air flowing back inside the blower pipe is discharged.

According to this type of backflow prevention unit (700), air is blown in one direction through the one-way valve (720), but air that flows back due to back pressure is re-introduced through the discharge hole (730).

Since the air that is re-introduced into the corresponding blower pipe is discharged together with the air that is continuously blown through the one-way valve (720), back pressure is prevented, thereby improving the discharge efficiency.

Here, each discharge hole (730) is formed to be inclined toward the center of the backflow prevention frame (710) from the bottom to the top.

In other words, as it is formed to tilt toward the center of the backflow prevention frame (710) as it goes in the direction of backflow, it is effectively discharged by guiding it toward the one-way valve (720).

In addition, the backflow prevention unit (700) is further equipped with an opening/closing control unit (740).

This opening/closing control unit (740) includes an opening/closing control frame (741) that is rotatably installed on a backflow prevention frame (710) and a control hole (742) formed on the opening/closing control frame (741) to correspond to each discharge hole (730).

By rotating this opening/closing control frame (741) to adjust the position of the control hole (742), the opening/closing amount of each discharge hole (730) is adjusted, thereby controlling the amount of backflow of air.

10: Cultivation house 100: House body
200: Geothermal pipe 210: Geothermal main pipe
220: First geothermal connection pipe 230: Second geothermal connection pipe
240: Reinforcement 300: First blower pipe
400: Second blower pipe 500: Water collection pipe
600 : Blower

Claims (10)

A house body having a cultivation space inside;
Geothermal pipes installed underground;
A first blower pipe for connecting one end of the above geothermal pipe to the above cultivation space section;
A second blower pipe for connecting the other end of the above geothermal pipe to the above cultivation space; and
It includes a blower for sucking in air from the above cultivation space, passing it through the geothermal pipe to exchange heat, and then expelling it again;
The above geothermal pipe,
Geothermal main pipe buried underground;
A first geothermal connection pipe connecting one end of the above geothermal main pipe to the first blower pipe;
A second geothermal connection pipe connecting the other end of the above geothermal main pipe to the second blower pipe; and
It includes a reinforcing member that maintains the spacing between each arranged geothermal main pipe and can improve the load-bearing capacity;
The above geothermal main pipes are arranged in multiples so as to be spaced apart from each other at a certain interval, the first geothermal connection pipe connects one end of each geothermal main pipe to the first blower pipe, and the second geothermal connection pipe connects the other end of each geothermal main pipe to the second blower pipe.
The above reinforcement part,
A reinforcing frame having a certain thickness and provided to cross the arranged geothermal main pipes; and
It includes a reinforcing mounting groove formed in the reinforcing frame so that each of the above geothermal main pipes is mounted;
Each of the above geothermal main pipes,
A plurality of unit geothermal pipes having a certain length; and
Includes a unit geothermal connection for interconnecting two adjacent unit geothermal pipes;
The above unit geothermal connection part is,
A first flange fitted to the end of one unit geothermal pipe;
A second flange fitted to the end of another unit geothermal pipe to correspond to the first flange;
A fixing member that mutually connects the first flange and the second flange; and
It includes packing for sealing between the first flange and the second flange and between each flange and the corresponding unit geothermal pipe;
Further comprising a protective cover that covers and protects the outer side of the first flange and the second flange connected by the above-mentioned fixed member;
The above protective cover,
A protective cover body having a portion cut out of an elastic material and installed to cover the first flange and the second flange; and
Includes a cover clamp for fastening the above protective cover body;
The above first blower pipe, first geothermal connection pipe, and second geothermal connection pipe are formed with the same diameter,
The diameter of the above second blower pipe is formed smaller than the diameter of the second blower pipe.
The above blower is a blower fan, the rotation speed of which is controlled by a motor and rotates forward and reverse.
Temperature sensor for measuring the temperature of the ground and the temperature of the cultivation space; and
Further comprising a blower control unit that receives the measurement values of each of the above temperature sensors and controls the blower unit;
At least one of the first and second blower pipes includes a backflow prevention unit to prevent backflow of blown air;
The above-mentioned backflow prevention unit is,
A backflow prevention frame installed in the corresponding blower pipe;
A one-way valve formed in the center of the above-mentioned backflow prevention frame to blow air in one direction; and
It includes a plurality of discharge holes formed along the edge of the above-mentioned backflow prevention frame and discharges air flowing back inside the corresponding blower pipe;
A cultivation house utilizing geothermal heat in which the air discharged through the above-mentioned discharge hole is re-expelled together with the air blown by the above-mentioned one-way valve. delete delete In the first paragraph,
Each of the above geothermal main pipes is arranged at a certain interval in the horizontal direction,
A cultivation house utilizing geothermal heat, characterized in that the first geothermal connection pipe and the second geothermal connection pipe are installed so as to be perpendicular to the longitudinal direction of the geothermal main pipe, and the other end of the first geothermal connection pipe protrudes outside the geothermal main pipe. delete In paragraph 4,
A cultivation house utilizing geothermal heat, further comprising a collection section for collecting condensation water generated from at least one of the first and second ventilation pipes. delete delete delete delete

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