KR102513141B1 - A temperature difference reducing unit type of heating duct - Google Patents

Abstract

The present invention relates to a straight cold dual duct, which can provide uniform heat transfer indoors, comprising: a hollow upstream side pipe (20) which is provided in a hot/cold air blower (10) and is connected to an outlet of a blower for blowing hot air or cold air generated by the hot/cold air blower (10) from an outlet to an outside; a hollow downstream side pipe (40) which has an internal space shielded at a downstream end portion by a downstream end surface (42a) and is disposed while being spaced apart from the upstream side pipe (20) at a remote position; and a straight duct (30) which is disposed between the upstream side pipe (20) and the downstream side pipe (40) to communicate with the upstream side pipe (20) and the downstream side pipe (40) so as to form a first passage where the hot air or the cold air flows while being supplied by the hot/cold air blower (10), and to form first side discharge portions at both sides thereof, wherein the number of the first side discharge portions increases one by one in upstream and downstream sectors that are in contact with each other among a plurality of sectors so that the heat emission for each sector becomes the same in a greenhouse (60), which is divided into a plurality of sectors (V1, V2, V3, V4) having the same lengths (L1, L2, L3, L4) from upstream to downstream along a longitudinal direction, and the first side discharge portions are formed in one or more forms of first discharge ports (30h1, 30h2, 30h3, 30h4) and first branch ducts (31a1, 31a2, 31a3, 31a4).

Description

A temperature difference reducing unit type of heating duct}

The present invention includes a hollow upstream side pipe 20 provided in a cooling/heating fan 10 and connected to the outlet of the blower for blowing warm air or cold air generated by the cooling/heating fan 10 to the outside from the outlet; and a downstream end The inner space is shielded at the downstream end by the side surface 42a, and the hollow downstream pipe 40 is disposed remotely from the upstream pipe 20; and the upstream pipe 20 and a first passage disposed between the upstream pipe 20 and the downstream pipe 40 so as to communicate with the downstream pipe 40, through which the warm air or cold air is supplied by the cold and warm air fan 10 and flows and a straight duct 30 made of a woven film material having first side discharge portions formed on both sides, wherein the first side discharge portion has the same length (L1, L2, L3) from upstream to downstream along the longitudinal direction . In a greenhouse characterized in that the number increases by one in the sector downstream of the sector, and is formed in the form of one or more of the first outlets (30h1, 30h2, 30h3, 30h4) and the first branch ducts (31a1, 31a2, 31a3, 31a4). It relates to a cold/hot air branch duct with reduced temperature deviation.

In general, in crop cultivation facilities such as greenhouses, cooling and warming air devices are installed to provide an environment of optimum temperature for growing crops in summer or winter, and ducts are installed to evenly deliver warm or cold air from the cooling and heating device to the room. is being used

When warm air or cold air passes through the duct, heat loss occurs through the surface of the duct as the distance from the cold and hot air device increases, and a phenomenon in which the temperature difference between a place near and a place far from the cold and warm air device in the duct increases. However, the imbalance in crop growth occurs, resulting in deterioration in quality and low productivity, and maintenance costs increase because the output of the cooling and warming air devices must be increased to control the temperature far away from the cold and hot air devices.

For example, Republic of Korea Patent Registration No. 10-1913820 (2018.10.25.) "Raising seedling cultivation house" is disclosed.

Hedang technology is "a frame forming a dome structure; a heat-insulating and insect-repellent cover covering the roof and side walls of the frame; an opening and closing device for unfolding or opening the heat-repellent and insect-proof cover; provided on the bottom surface of the frame, but lower One or more lower beds equipped with a plurality of wheels on the surface and provided with one or more drainage holes for drainage; Spaced apart from the upper side of the lower bed and supported and installed by a support, one or more drainage holes are formed, and one or more An upper bed equipped with an inlet; Detachable from the drain hole, a drain control module composed of a filter basket equipped with a filter net and a stopper sealing the top of the filter basket; Installed on the upper side or lower side of the upper bed to generate cold air or Cooling and warming fans capable of blowing warm air; The air blown by the cold and warming fans flows, is disposed along the upper space and the lower space separated by the upper bed, and discharges cold or warm air through a plurality of air holes A ventilation tube for providing light to the upper and lower spaces; and a plurality of headlamps for providing light to the upper and lower spaces; and shafts provided at the front and rear of the frame, which are connected to the opening and closing parts to rotate, thereby winding or unwinding the heat-insulating insect-repellent cover. and an open/closer movement guide provided to provide a movement path by supporting both ends of the open/closer movement guide, wherein the open/close switch movement guide is engaged with rack gears provided on the front and rear sides of the frame and the rack gear, the shaft A seedling cultivation house characterized in that it includes a pinion coupled through."

However, in this technology, the number of air holes 810 of the blowing tube 800 for discharging cold or warm air is irregularly formed regardless of whether it is near or far from the cold or hot air device, and therefore cold or warm air is blown through the blowing tube 800. ) The amount of heat emitted becomes non-uniform as it goes from the upstream to the downstream of the discharged heat, so that the amount of heat discharged from the cool air or warm air becomes non-uniform as the amount of heat discharged goes from the upstream to the downstream of the blowing tube 800 in the seedling cultivation house. Accordingly, there is a concern that even heat transfer to the room may not be achieved.

In addition, in Korean Patent Registration No. 10-0877140 (2008.12.26.), "the hot water boiler 12 heated by the hot water heating means 13 is formed on one side of the lower side of the cold and hot water tank 11 to which water is supplied, and cold and hot water A cold and hot water supply unit 10 having a cooling means 14 for cooling to the other side of the lower part of the tank 11 and a cold and hot water supply pipe 15 for supplying cold and hot water to one side of the cold and hot water tank 11, and the cold and hot water supply unit ( The cold and hot water supply pipe 15 of 10) is connected to the cold and hot water supply port 24 on one side of the exchange pipe 22 bent in plurality inside the exchange body 21, and the exchange pipe 22 is connected to the outside of the exchange body ( 21) is provided with a heat exchange unit 20 in which a cold/warm air radiating plate 23 for radiating cold and warm air is formed, and an exchange space 32 for inserting and installing a plurality of exchange bodies 21 of the heat exchange unit 20 A hot/cold exchange unit having an air supply port 33 equipped with an intake fan 34 formed on one side of one exchange body 21 and a cold/warm air supply port 36 supplying cold/warm air to the other side of the exchange body 21. 30 and the cold and warm air supply port 36 of the cold and hot exchange unit 30 to form a cold and hot air supply pipe 41 to supply cold and warm air, and supply cold and hot air to the cold and hot air supply pipe 41 through a plurality of through holes. A warm air and cold air supply device characterized in that it is configured to include a cold and hot air supply unit 40 formed with a ball 42 to supply cold and hot air."

The above conventional Korean Patent Registration No. 10-0877140 hot air and cold air supply device also has the same number of cold and hot air supply holes 42 regardless of whether they are near or far from the cold/hot exchange unit 30, and thus cold air or As the warm air flows from the upstream to the downstream of the cold and warm air supply unit 40, heat loss occurs, so that the amount of heat discharged from the cold or warm air discharged goes from the upstream to the downstream of the cold and warm air supply unit 40 in the seedling cultivation house. As the amount of heat emitted decreases, there is a concern that even heat transfer to the room may not be achieved.

Republic of Korea Patent Registration No. 10-1913820 (2018.10.25.) Republic of Korea Patent No. 10-0877140 (2008.12.26.)

The present invention was created to more actively solve the above problems, and in a distribution type warm air or cold air duct of a crop cultivation facility such as a greenhouse, the upstream sector of the greenhouse The main problem to solve is to provide a branch duct for cold and hot air with reduced temperature variation in the greenhouse that can reduce the temperature variation within the greenhouse by equalizing the amount of heat emitted from straight ducts located in the downstream sector, thereby enabling even heat transfer to the room. am.

In addition, the present invention provides a cold and hot wind branch duct with reduced temperature variation in the greenhouse which further includes a wand-type duct disposed in the greenhouse in a 'U' shape together with the straight double duct to discharge heat more evenly into the room. Providing is another challenge.

In addition, in the present invention, the first side discharge part of the straight duct communicatively connected to the cooling and warm air device or the second lateral discharge part of the wand-shaped duct communicatively connected to the straight duct is constituted by at least one of the discharge port and the branch duct, respectively, so as to provide a greenhouse The amount of heat emitted from the straight ducts located in the upstream and downstream sectors is equalized, and at the same time, cool or warm air is blown toward the crops grown in the greenhouse through the branch duct, so that it touches the crops grown in the greenhouse and grows at abnormally high temperatures. Another challenge is to prevent the occurrence of burst pests in crops or to prevent damage from cold damage to cultivated crops at abnormally low temperatures.

In addition, the present invention configures a plurality of rectangular segments that are connected to the upstream end of the upstream pipe and can be bent around the connection portion, so that the degree of opening of the upstream pipe inlet can be adjusted, and accordingly, the upstream pipe from the blower can be controlled. It is a further challenge to be able to control the amount of heat emitted into the greenhouse by allowing the supply of cold air or warm air supplied into the greenhouse to be regulated.

In addition, in the present invention, the wind direction of the cool air or warm air discharged into the greenhouse from the first side discharge portion of the straight duct communicatively connected to the cooling and warm air device or the second lateral discharge portion of the cane-shaped duct communicatively connected to the straight duct is directed upward and downward. It is another additional challenge to control and direct cold or warm air to a desired part of the cultivated crop even when the height of the cultivated crop in the greenhouse is high, thereby preventing damage to the cultivated crop and promoting growth.

In order to achieve the above object, the cold/hot air branch duct for reducing the temperature deviation in the greenhouse proposed by the present invention has the following characteristics.

The present invention includes a hollow upstream side pipe 20 provided in a cooling/heating fan 10 and connected to the outlet of the blower for blowing warm air or cold air generated by the cooling/heating fan 10 to the outside from the outlet; and a downstream end The inner space is shielded at the downstream end by the side surface 42a, and the hollow downstream pipe 40 is disposed remotely from the upstream pipe 20; and the upstream pipe 20 and a first passage disposed between the upstream pipe 20 and the downstream pipe 40 so as to communicate with the downstream pipe 40, through which the warm air or cold air is supplied by the cold and warm air fan 10 and flows and a straight duct 30 made of a woven film material having first side discharge portions formed on both sides, wherein the first side discharge portion has the same length (L1, L2, L3) from upstream to downstream along the longitudinal direction . The number increases by one in the sector downstream from the sector, and is characterized in that it is formed in the form of one or more of the first outlets 30h1, 30h2, 30h3, and 30h4 and the first branch ducts 31a1, 31a2, 31a3, and 31a4.

The upstream pipe 20 is characterized in that it further includes a plurality of rectangular segments 20c connected to the upstream end and capable of being bent around the connection portion.

In addition, the cold and hot air branch duct of the greenhouse temperature variation reduction type according to the present invention is a single duct, one end of which is connected to the downstream pipe 40 in communication with the straight duct 30 in a 'U' shape. A cane-shaped duct 30' made of a woven film disposed in the greenhouse 60 and forming a second blowing passage through which the warm air or cold air is supplied by the blower and flows; and the cane-shaped duct 30' A plurality of sectors (V1) having the same length (L1, L2, L3, L4) from upstream to downstream along the longitudinal direction, further comprising second side discharge units formed on both sides of the straight portion. , V2, V3, V4), the number of upstream and downstream sectors in contact with each other among the plurality of sectors is increased by one in the upstream sector rather than the downstream sector so that the amount of heat emitted by each sector is the same in the greenhouse 60 partitioned into sectors. And, it is characterized in that it is made of at least one form of the second discharge ports (30h1', 30h2', 30h3', 30h4') and the second branch ducts (30b1, 30b2, 30b3, 30b4).

The first outlets 30h1, 30h2, 30h3, and 30h4, the first branch ducts 31a1, 31a2, 31a3, and 31a4, the second outlets 30h1', 30h2', 30h3', and 30h4', and the second branch duct ( 30b1, 30b2, 30b3, 30b4) are, respectively, a wing (30W) made of a woven film material that is horizontally disposed with one end connected to a portion in contact with the lower apex of the outer end adjacent portion or the lower portion of the outer end surface; and A ring having one end connected to the outer circumferential surface of the straight duct 30 or wand-type duct 30 'located above the upper apex of the 1st and 2nd discharge ports or the upper apex adjacent to the free ends of the first and second branch ducts ( 30r); and a string 32 having one end connected to the free end of the wing 30W and the other end inserted into the ring 30r to be tied.

The present invention consisting of the above-described configuration,

First, the amount of heat emitted from the straight ducts located in the upstream and downstream sectors of the greenhouse among the straight ducts communicatively connected to the cooling and warming air devices is equalized to reduce the temperature deviation in the greenhouse, thereby enabling even heat transfer to the room. It has the effect of providing a cold and hot wind branch duct for reducing the temperature deviation in the greenhouse.

Second, the effect of providing a branch duct for cold and hot air in the greenhouse reducing temperature variation in the greenhouse by further providing a cane-type duct disposed in the greenhouse in a 'U' shape along with the straight double duct. have

Third, the first lateral discharge part of the straight duct communicatively connected to the cooling and warm air device or the second lateral discharge part of the wand-shaped duct communicatively connected to the straight duct is constituted by at least one of the discharge port and the branch duct, respectively, so that the upstream sector of the greenhouse and The amount of heat emitted from the straight duct located in the downstream sector is equalized, and at the same time, cold or warm air is blown toward the crops grown in the greenhouse through the branch duct, so that it touches the crops grown in the greenhouse and prevents outbreaks of crops at abnormally high temperatures. It has the effect of providing a cold and hot wind branch duct of a type reducing the temperature deviation in the greenhouse that prevents the occurrence of cold damage or damage to cultivated crops at abnormally low temperatures.

Fourth, it is connected to the upstream end of the upstream pipe to form a plurality of rectangular segments that can be bent around the connection portion, so that the degree of opening of the upstream pipe inlet can be adjusted, and accordingly, the blower is supplied into the upstream pipe. It has an effect of providing a cold/hot air branch duct of a type reducing temperature deviation in the greenhouse capable of adjusting the amount of heat emitted into the greenhouse by controlling the supply amount of cold air or warm air.

Fifth, the wind direction of the cold or warm air discharged into the greenhouse from the first side discharge part of the straight duct communicatively connected to the cold and warm air device or the second lateral discharge part of the cane-shaped duct communicatively connected to the straight duct is adjusted upward and downward to the greenhouse. Even when the height of the cultivated crops is high, cold or warm air is directed to the desired part of the cultivated crops to prevent damage to cultivated crops and promote growth. have

1 is a perspective view showing an installation state in a greenhouse of a cold/hot air branch duct for reducing temperature variation in a greenhouse according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view of a cold/hot air branch duct for reducing temperature deviation in the greenhouse of FIG. 1 .
FIG. 3A is a perspective view of an upstream pipe among components of the cold/hot air branch duct for reducing temperature variation in the greenhouse of FIG. 1 .
Figure 3b is a perspective view of an upstream tube according to another embodiment further including a plurality of rectangular segments connected to the upstream end of the upstream tube of Figure 3a and capable of being bent around the connection portion.
Figure 4 is a cross-sectional view taken along the line A-A' of Figure 3, in which a plurality of rectangular segments connected to the upstream end of the inner tube of the upstream tube and capable of being bent around the connection portion are in a state A before being bent and a state B after being bent. It is a cross-section representing the state.
FIG. 5 is a longitudinal cross-sectional view of a downstream pipe among components of the cold/hot air branch duct for reducing temperature deviation in the greenhouse of FIG. 1 .
6 is a cross-sectional view of a cold/hot air branch duct for reducing temperature deviation in a greenhouse according to another embodiment of the present invention in which a wand-type duct is additionally provided to the cold/warm air branch duct for reducing temperature deviation in a greenhouse of FIG. 1 .
7 is a BB′ line cross-sectional view of FIG. 2 .
8 is a cross-sectional view taken along line C-C′ of FIG. 6;
9 and 10 are accommodated in the wire accommodating part provided along the longitudinal direction of the linear double duct and the adjacent part of the upper apex of the duct, among the components of the cold and hot air branch duct of the greenhouse temperature variation reduction type of FIG. 1, to frame the greenhouse. It is a view showing the wire connected to and the turnbuckle installed on the portion of the wire between the frame and the wire receiving portion of the greenhouse.

Hereinafter, with reference to the accompanying drawings, the configuration of the present invention and the resulting actions and effects will be collectively described.

Advantages and features of the present invention, and methods for achieving them, will become clear with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, and may be implemented in a variety of different forms, and only the present embodiments make the disclosure of the present invention complete, and common knowledge in the art to which the present invention belongs. It is provided to completely inform the person who has the scope of the invention, and the present invention is only defined by the scope of the claims. And like reference numerals designate like elements throughout the specification.

In addition, throughout the specification, when a part is said to be connected to another part, this includes not only the case where it is directly connected but also the case where it is indirectly connected with another element interposed therebetween. In addition, including a certain component means that other components may be further included without excluding other components unless otherwise stated.

1 is a perspective view showing an installation state of a greenhouse temperature deviation reduction type cold/warm air branch duct in a greenhouse according to an embodiment of the present invention, and FIG. 2 is a perspective view of the temperature deviation reduction type cold/warm air branch duct in the greenhouse of FIG. 1 Figure 3a is a perspective view of an upstream tube among the components of the cold/warm air branch duct of the greenhouse temperature variation reduction type in FIG. 1, and Figure 3b is connected to the upstream end of the upstream tube of Figure 3a It is a perspective view of an upstream pipe according to another embodiment further including a plurality of rectangular segments that can be bent to the center, and FIG. 4 is a cross-sectional view along line AA' of FIG. 3 at the upstream end of the inner pipe of the upstream pipe. A cross-sectional view showing a state A before a plurality of rectangular segments that can be connected and bent around the connection portion are bent and a state B after being bent, and FIG. 6 is a longitudinal cross-sectional view of a downstream pipe among components, and FIG. 6 is a temperature deviation in a greenhouse according to another embodiment of the present invention in which a wand-type duct is additionally provided to the cold and hot air branch duct for reducing temperature deviation in the greenhouse of FIG. 1 7 is a cross-sectional view taken along the line BB′ of FIG. 2, FIG. 8 is a cross-sectional view taken along the line C-C′ of FIG. 6, and FIGS. 9 and 10 are the temperature inside the greenhouse of FIG. 1 Among the components of the variation-reducing type of cold and hot air branch duct, the straight double duct and the wire received in the wire accommodating part provided along the length direction of the adjacent part of the upper apex of the duct and connected to the frame of the greenhouse, and the frame and the wire accommodating part of the greenhouse It is a drawing showing the turnbuckle installed on the part of the wire between.

(First embodiment)

1 to 5, the straight double duct of the present invention includes an upstream pipe 20, a downstream pipe 40, and a straight duct 30.

The hollow upstream pipe 20 is connected to the outlet of the blower provided in the cold/heat fan 10 and blowing the warm air or cold air generated by the cold/heat fan 10 from the outlet to the outside. The warm air or cold air generated by (10) can be blown out from the outlet.

The hollow downstream pipe 40 has an inner space shielded at the downstream end by a downstream end surface 42a, and is spaced apart from the upstream pipe 20, and is woven The straight duct 30 made of a film material is disposed between the upstream pipe 20 and the downstream pipe 40 so as to communicate with the upstream pipe 20 and the downstream pipe 40, and the warm air Alternatively, a first passage through which cold air is supplied by the cold and warm air fan 10 is formed, and first side discharge units are formed at both sides. According to this configuration, the warm air or cold air blown from the cold/heat fan 10 flows along the first blowing passage of the straight duct 30 and then blows to the downstream pipe 40, while the downstream pipe 40 flows through the downstream pipe 40. Since the inner space is shielded at the downstream end by the end surface 42a, the warm air or cold air blown from the cold/heat fan 10 cannot be discharged to the outside through the shielded inner space.

The first side discharge unit is divided into a plurality of sectors (V1, V2, V3, V4) having the same length (L1, L2, L3, L4) while going from upstream to downstream along the longitudinal direction. In the greenhouse 60 The number of upstream and downstream sectors that are in contact with each other increases by one in the downstream sector than the upstream sector so that the amount of heat released for each sector is the same, and the first discharge ports 30h1, 30h2, 30h3, and 30h4 It is made in the form of one or more of the first branch ducts 31a1, 31a2, 31a3, and 31a4. With this configuration, the amount of warm air or cold air discharged into the greenhouse 60 is greater in the downstream sector than in the upstream sector. In this regard, since a certain degree of heat loss or heat increase occurs as the warm air or cold air moves toward a location remote from the cold/heat fan 10 along the longitudinal direction of the straight duct 30, as described above, the longitudinal direction In the greenhouse 60 divided into a plurality of sectors (V1, V2, V3, V4) having the same length (L1, L2, L3, L4) from upstream to downstream along If the number of first side discharge parts increases by one in the upstream and downstream sectors contacting each other among the plurality of sectors lower than the upstream sector, when warm air is discharged into the greenhouse 60 through the first side discharge parts, the greenhouse ( 60), the amount of heat emitted by each sector (Q1(Q1'+Q1"), Q2(Q2'+Q2"), Q3(Q3'+Q3"), Q4(Q4'+Q4")) remains the same. (Q1 = Q2 = Q3 = Q4). In FIG. 1 , the number of first discharge units (eg, the first branch duct 31a1) in the first sector is one, and the number of first discharge units (eg, the first discharge port 31h2) and the first branch duct ( 31a2)) is 2, the sum of the numbers of the first discharge parts (eg, the first outlet 31h3 and the first branch duct 31a3) in the third sector is 3, and the number in the fourth sector is 3. Although the sum of the numbers of the first discharge unit (eg, the first discharge port 31h4 and the first branch duct 31a4) is illustrated as four, the present invention is not limited thereto, and for example, the number of the first discharge unit It is configured as shown in Table 1 below, and then the greenhouse length, the sector volume (the length of the sector volume in this case), and the first discharge part interval may be configured as shown in Table 1 below.

Greenhouse length (m) sector volume
(sector volume of
length) Number of first discharge parts Between the first discharge part
Interval (m) 50 V1(10m) 18 0.55 V2(10m) 19 0.52 V3 (10m) 20 0.50 V4 (10m) 21 0.47 V5 (10m) 22 0.45

(Second embodiment)

In the second embodiment, as shown in FIG. 3B, in addition to the configuration of the first embodiment, the upstream pipe 20 is connected to the upstream end and a plurality of rectangular segments 20c that can be bent around the connection portion. ) The configuration is the same as that of the first embodiment except for further including.

When the plurality of rectangular segments 20c are bent around the connection portion connected to the upstream end of the upstream tube 20, the upstream tube 20 is formed according to the direction and degree of bending of the plurality of rectangular segments 20c. The opening degree of the inlet can be adjusted, and accordingly, the supply amount of warm air supplied from the cold and warm air fan 10 to the inlet of the upstream pipe 20 can be adjusted, and accordingly supplied into the greenhouse 60 according to the crop growing environment It is possible to adjust the amount of heat of cold or warm air.

(Third Embodiment)

As shown in FIG. 6, in the third embodiment, the cold and hot air branch duct of the type reducing the temperature deviation in the greenhouse is a single duct, one end of which is connected to the downstream pipe 40 in communication with the straight duct 30 ) is disposed in the greenhouse 60 in a 'U' shape together with a wand-shaped duct 30' made of a woven film material to form a second blowing passage through which the warm air or cold air is supplied by the blower and flows; A second side discharge portion formed on both sides of the straight portion of the wand-shaped duct 30' is further included, and the second side discharge portion has the same length (L1, L2, L3, In the greenhouse 60 partitioned into a plurality of sectors V1, V2, V3, and V4 having L4, the upstream and downstream sectors in contact with each other among the plurality of sectors are located in the downstream sector so that the amount of heat released by each sector is the same. The number increases by one in the more upstream sector, except that it is formed in the form of one or more of the second outlets 30h1', 30h2', 30h3', and 30h4' and the second branch ducts 30b1, 30b2, 30b3, and 30b4. has the same configuration as the first and second embodiments.

According to the above configuration, since the flow of warm air or cold air flows from the downstream sector to the upstream sector in the wand-shaped duct 30', the second side discharge unit (eg, the second discharge port (eg, the second discharge port) is located in the upstream sector rather than the downstream sector 30h1', 30h2', 30h3', 30h4') and the second branch duct (30b1, 30b2, 30b3, 30b4) when the number of the sum of one or more) increases by one, the second side through the cane-type duct (30') The warm air is discharged into the greenhouse 60 through the discharge unit (eg, one or more of the second outlets 30h1', 30h2', 30h3', and 30h4' and the second branch ducts 30b1, 30b2, 30b3, and 30b4). The amount of heat emitted by each sector of the city greenhouse 60 may be maintained the same.

(Fourth embodiment)

As shown in FIGS. 7 and 8 , the fourth embodiment includes the first outlets 30h1, 30h2, 30h3, and 30h4, the first branch ducts 31a1, 31a2, 31a3, and 31a4, and the second outlets 30h1'. , 30h2', 30h3', 30h4' and the second branch ducts 30b1, 30b2, 30b3, 30b4 are each connected at one end to a portion in contact with the lower apex of the outer end adjacent portion or to the lower portion of the outer end surface, respectively. Wings (30W) of woven film material disposed horizontally; and the outer circumferential surface of the straight duct 30 or wand-type duct 30' located above the upper apex of the first and second outlets or the first and second branch ducts A ring 30r having one end connected to the upper apex of the adjacent portion of the free end of the ring 30r; and a string having one end connected to the free end of the wing 30W and the other end inserted into the ring 30r to be tied ( 32) is the same as that of the third embodiment except for further including.

According to the above configuration, when the string 32 is inserted into the ring 30r and tied, the length between the wing 30W and the ring 30r is adjusted so that the string 32 is inserted into the ring 30r and tied to the wing 30W. ) and the ring 30r, the inclination angle of the wing 30W to the horizontal can be adjusted, and accordingly, the first discharge ports 30h1, 30h2, 30h3, 30h4 and the first branch duct 31a1, 31a2, 31a3, 31a4, the second discharge port (30h1', 30h2', 30h3', 30h4') and the second branch duct (30b1, 30b2, 30b3, 30b4) to adjust the wind direction of the warm air or cool air discharged from the up and down Thus, even when the height of the cultivated crops in the greenhouse is high, it is possible to prevent damage to the cultivated crops and promote growth by directing cold or warm air to a desired part of the cultivated crops.

(Fifth embodiment)

In the fifth embodiment, the straight duct 30 and the wand-shaped duct 30' are provided along the longitudinal direction of the upper apex adjacent portions of the straight duct 30 and the wand-shaped duct 30', respectively. A wire (W) received in the accommodating portions (30c, 30c') and connected to the frame (61) of the greenhouse (60); and a wire (W, W) between the frame (61) and the wire accommodating portions (30c, 30c') ') The configuration is the same as the first to fourth embodiments except that it further includes a turnbuckle 31 installed in the portion.

According to the configuration, the frame of the greenhouse 60 is accommodated in the wire accommodating portions 30c and 30c' respectively provided along the longitudinal direction of the adjacent portions of the upper vertices of the straight duct 30 and the wand-shaped duct 30'. The tension of the wire (W) connected to (61) can be adjusted by the turnbuckle (31), and accordingly, the straight duct (30) and the wand-type duct (30') do not distort their shapes when cold or warm air flows inside. It is possible to maintain a shape having a circular cross section without sagging.

(Example 6)

In the sixth embodiment, the upstream tube 20 further includes one or more beads 20b formed to protrude along the circumferential direction of the outer circumferential surface, and each of the downstream tubes 40 protrudes along the circumferential direction of the outer circumferential surface. It further includes one or more beads 40b formed to be formed, and the adjacent portion of the upstream end of the straight duct 30 is upstream to the stainless band 50 at a position more upstream than the selected one of the one or more beads 20b. It is fixed to the side pipe 20 and the adjacent part of the downstream end of the straight duct 30 is fixed to the other stainless band 50 at a position further downstream than the selected one bead among one or more beads 40b. Except for being fixed to (40), the configuration is the same as that of the first to fifth embodiments.

According to the configuration, the adjacent portion of the upstream end of the straight duct 30 is fixed to the upstream pipe 20 at a position more upstream than the selected one of the beads 20b with one stainless band 50 and fix the adjacent part of the downstream end of the straight duct 30 to the downstream pipe 40 with another stainless band 50 at a position further downstream than the selected one of the beads 41b and 42b Since the selected bead serves as a barrier against the movement of the stainless band 50, the straight duct 30 is not separated from the upstream pipe 20 and the downstream pipe 40.

The present invention described above has been described with reference to an embodiment shown in the drawings, but this is only exemplary, and those skilled in the art can make various modifications and equivalent other embodiments therefrom. will have to be clarified. Therefore, the true technical protection scope of the present invention should be construed by the appended claims, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

10. Cold and hot air blower
20. Upstream pipe
20 b. bead
20c. square intercept
30. Straight duct
30b1, 30b2, 30b3, 30b4. 2nd branch duct
30c, 30c'. wire receptacle
30h1, 30h2, 30h3, 30h4. 1st outlet
30h1', 30h2', 30h3', 30h4'. 2nd outlet
30'. wand duct
30 r. ring
30 W. wing
31. Turnbuckle
31a1, 31a2, 31a3, 31a4. First branch duct
32. Lanyard
40. Downstream pipe
40 b. bead
42a. downstream end face
50. Sten Band
60. Greenhouse
61. Frame
W. wire

Claims (4)

delete delete a hollow upstream pipe 20 provided in the cold/warm fan 10 and connected to the outlet of the blower for blowing warm air or cold air generated by the cold/heat fan 10 to the outside from the outlet; and
A hollow downstream pipe (40), the inner space of which is shielded at the downstream end by the downstream end surface (42a), and disposed remotely from the upstream pipe (20);
It is disposed between the upstream pipe 20 and the downstream pipe 40 so as to communicate with the upstream pipe 20 and the downstream pipe 40, and the warm air or cold air is blown by the cold/heat fan 10. A straight duct 30 made of a woven film forming a first passage through which supply is flowing and forming a first side discharge part on both sides,
The first side discharge part,
In the greenhouse 60 divided into a plurality of sectors (V1, V2, V3, V4) having the same length (L1, L2, L3, L4) from upstream to downstream along the longitudinal direction, the heat released by each sector is the same The number increases by one in the downstream sector than the upstream sector in the upstream and downstream sectors contacting each other so that the first outlets 30h1, 30h2, 30h3, and 30h4 and the first branch ducts 31a1 and 31a2 , 31a3, 31a4) in the form of one or more,
The upstream pipe 20 further includes a plurality of rectangular segments 20c connected to the upstream end and capable of being bent around the connection portion,
As a single duct, one end is communicatively connected to the downstream pipe 40 and disposed in the greenhouse 60 in a 'U' shape together with the straight duct 30, and the warm air or cold air is blown by the blower. A wand-shaped duct 30 'made of a woven film forming a second blowing passage supplied and flowing; and
Further comprising second side discharge parts formed on both sides of the straight portion of the wand-shaped duct 30',
The second side discharge part,
In the greenhouse 60 divided into a plurality of sectors (V1, V2, V3, V4) having the same length (L1, L2, L3, L4) from upstream to downstream along the longitudinal direction, the heat released by each sector is the same The number of upstream and downstream sectors that are in contact with each other increases by one in the upstream sector than in the downstream sector, and the second outlets 30h1', 30h2', 30h3', 30h4' and the second branch duct It is made in the form of one or more of (30b1, 30b2, 30b3, 30b4),
The straight duct 30 and the wand-shaped duct 30' are wire receiving portions 30c and 30c respectively provided along the longitudinal direction of the upper apex adjacent portion of the straight duct 30 and the wand-shaped duct 30'. ') and connected to the frame 61 of the greenhouse 60; and installed in the portions of the wires W and W' between the frame 61 and the wire receiving portions 30c and 30c'. A cold and hot wind branch duct for reducing temperature deviation in the greenhouse, characterized in that it further comprises a turnbuckle (31) . According to claim 3,
The first outlets 30h1, 30h2, 30h3, and 30h4, the first branch ducts 31a1, 31a2, 31a3, and 31a4, the second outlets 30h1', 30h2', 30h3', and 30h4', and the second branch duct ( 30b1, 30b2, 30b3, 30b4), respectively,
A wing (30W) made of a woven film material having one end connected to a portion in contact with the lower apex of the outer end adjacent portion or the lower portion of the outer end surface and disposed horizontally;
One end connected to the outer circumferential surface of the straight duct 30 or wand-type duct 30 'located above the upper apex of the first and second outlets or the upper apex of the free end adjacent to the first and second branch ducts ring (30r); and
One end is connected to the free end of the wing (30W) and the other end is inserted into the ring (30r) and further comprises a string (32) that can be tied. duct.

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