JP5335472B2 - Air conditioning system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heating/cooling system supplying a heat medium over a wider range. <P>SOLUTION: This heating/cooling system 1 includes a temperature regulating device 61 regulating a temperature of the heat medium M, an air guide section 11 guiding the heat medium M with temperature regulated by the temperature regulating device 61, to the back side 51b of a compartment face 51, a converting member 16 for converging the heat medium M flowing in the air guide section 11 into the flow along the compartment face 51b, and closing members 14. Passing spaces S long in the circumferential direction of the cylindrical shape of the air guide section 11, is formed between an end section of the air guide section 11 and the converting member 16. The plurality of closing members 14 are disposed at intervals in the circumferential direction of the cylindrical shape of the air guide section 11 and partially close the passing space S. The converting member 16 includes a tapered flow channel P through which the heat medium after passing through the passing space S between the adjacent closing members 14, passes. The compartment face 51 defines a boundary of a heated/cooled room R as an object of heating or cooling. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to an air conditioning system, and more particularly to an air conditioning system that performs cooling or heating by radiation.

  In recent years, a radiant cooling and heating system has attracted attention as a cooling and heating method that achieves both energy saving and comfort. A radiant cooling / heating system is a system that cools and cools a ceiling surface, a floor surface, and the like by radiant heat from a ceiling surface, a floor surface, or the like that has been cooled during cooling and heated during heating and that has been cooled or heated. Heating and cooling by radiant heat is comfortable because extreme temperature unevenness does not occur in the room, and the amount of heat required for cooling or heating the ceiling surface, floor surface, etc. is less than that of a so-called convection type air conditioning system. For this reason, the radiation cooling and heating system can be said to be a more energy-saving system.

  As an example of a radiant cooling and heating system, a gaseous heat medium whose temperature is adjusted is guided to a plurality of portions on the back side of the floor surface, and the heat medium approaching in a direction perpendicular to the floor surface is disposed between the air guide unit and the conversion member. Some heat medium diffusion members in which slit-like gaps are formed are converted into a flow along the floor surface and diffused radially, and a wide area of the floor surface is cooled or heated to perform radiant cooling and heating (for example, Patent Documents) 1).

JP 2008-292071 A (FIG. 1, FIG. 2, etc.)

  In the above-described heat medium diffusing member, in order to diffuse the heat medium radially and uniformly, slit-like gaps are formed in the entire circumferential direction of the air guide portion formed in a cylindrical shape, and a wider range than before. It became possible to supply heat. However, if the heat medium can be supplied farther, it is possible to supply the heat medium over a wider range with one heat medium diffusion member, and it is considered that the cooling and heating efficiency is improved.

  In view of the above-described problems, an object of the present invention is to provide an air conditioning system that can widen the range in which a heat medium per member is supplied.

  In order to achieve the above object, the air conditioning system according to the first aspect of the present invention includes, for example, a temperature adjustment device 61 that adjusts the temperature of the gaseous heat medium M, as shown in FIG. A wind guide portion 11 formed in a cylindrical shape that guides the heat medium M, the temperature of which is adjusted, to the rear side 51b of the section screen that forms the boundary of the room to be cooled or heated; It is the conversion member 16 which converts the heat medium M that has flowed through the guide portion 11 into a flow along the section screen 51 b, and the heat guide portion 11 passes through between the end portions of the air guide portion 11. A conversion member 16 that forms a long passage gap S in the cylindrical circumferential direction; and a closure member 14 that partially closes the passage gap S, and a plurality of closure members that are provided at intervals in the cylindrical circumferential direction. 14; the conversion member 16 passes through the passage gap S between the adjacent blocking members 14. Heat medium M passes the flow passage P of the taper is formed.

  With this configuration, the heat medium that has collided with the closing member flows into the passage gap that is not blocked by the closing member, and the flow velocity is increased. Then, the heat medium passes through the tapered flow path of the conversion member and further increases the flow velocity. Thus, the flow along the section screen is improved, the directivity is improved and the reach of the heat medium can be increased, and the range in which the heat medium can be supplied from one place to the section screen can be widened.

  Moreover, the air conditioning system which concerns on the 2nd aspect of this invention, for example, as shown in FIG. 3, in the said air conditioning system which concerns on the 1st aspect of this invention, the conversion member 16 is formed in conical surface shape; The flow path P is cut along the generatrix 16g corresponding to each closing member 14 at the end (cone surface hem portion) 16e opposite to the apex 16t of the conical surface 16f of the conversion member 16. It is formed by bending so as to raise the end 16ec.

  If comprised in this way, a tapered flow path can be formed easily.

  According to the present invention, after the heat medium that has collided with the closing member flows into the passage gap that is not closed by the closing member and the flow velocity is increased, the flow velocity further increases after passing through the tapered flow path of the conversion member. Thus, the flow along the section screen is improved, the directivity is improved and the reach of the heat medium can be increased, and the range in which the heat medium can be supplied from one place to the section screen can be widened.

It is a figure explaining the structure of the air conditioning system which concerns on embodiment of this invention. (A) is a schematic block diagram of an air conditioning system, (b) is a perspective view of the jet nozzle with which an air conditioning system is provided. It is a figure which shows the surroundings of the wind guide part of a jet nozzle. (A) is a perspective view around an air guide part, (b) is a perspective view of the air volume adjusting member attached to an air guide part. It is a figure which shows the conversion member of a jet nozzle. (A) is a side view, (b) is a bottom view. It is a figure which shows an attachment member. (A) is a top view, (b) is a side view.

  Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the same or similar members are denoted by the same or similar reference numerals, and redundant description is omitted.

  First, with reference to FIG. 1, the structure of the air conditioning system 1 which concerns on embodiment of this invention is demonstrated. FIG. 1 is a diagram illustrating an air conditioning system 1, (a) is a schematic configuration diagram of the air conditioning system 1, and (b) is a perspective view of a jet nozzle 10 provided in the air conditioning system 1. The air-conditioning system 1 uses the air M as a heat medium cooled or heated (the temperature is adjusted) by an air conditioner 61 as a temperature control device, and a flooring 51 as a partition material that forms the boundary of the room to be cooled R. The floor material 51 is cooled or heated by diffusing along the partition back surface 51b, which is the back side of the floor, and the cooling / heating room R is cooled or heated by the radiant heat from the cooled or heated floor material 51. By using the jet nozzle 10, the air conditioning system 1 can extend the reach distance of the air M whose temperature has been adjusted as compared with the prior art, and can supply the air M over a wider range. Below, each structural member of the air conditioning system 1 is demonstrated.

  The jet nozzle 10 is a member installed in an underfloor space 55 formed between the floor material 51 and the concrete slab 54, and the air M that has been conveyed through the underfloor duct 38 is used as the rear surface of the section of the floor material 51. A wind guide portion 11 that leads to 51b in a substantially vertical direction, a conversion member 16 that converts the air M approaching substantially perpendicular to the partition back surface 51b into a flow direction along the partition back surface 51b, and a wind guide A closing member 14 that partially closes the passage gap S formed between the end of the portion 11 and the conversion member 16. “Aiming at the partition back surface 51b” means that it collides with the partition back surface 51b if there is nothing to block the way to go, and a typical example is a case where it is substantially perpendicular to the partition back surface 51b as in the present embodiment. It is.

  FIG. 2A is a perspective view around the air guide portion 11. The air guide portion 11 includes a main air guide portion 12 formed in a cylindrical shape and an extended air guide portion 13 formed in a cylindrical shape having a diameter larger than that of the main air guide portion 12 and a short length. ing. One end surface of the extended air guide portion 13 is an opening on the entire surface, and the other end surface is outside the portion where the opening having the same size as the diameter of the main air guide portion 12 (connection opening 13h) is formed. The surrounding area is blocked. One end of the main wind guide portion 12 is connected to a connection opening 13 h formed on the other end face of the extended wind guide portion 13. The main wind guide portion 12 and the extended wind guide portion 13 are arranged and connected so that the axes of both cylinders pass through the same virtual straight line. The entire end surfaces of the main air guide portion 12 are open.

  As shown in FIG. 2A, the closing member 14 is provided to extend in the axial direction of the cylinder from the end opposite to the side where the connection opening 13h of the extended air guide portion 13 is formed. In the present embodiment, the closing member 14 and the extended air guide portion 13 are integrally formed. However, the closing member 14 may be attached to the end of the extended air guide portion 13 that is separated from each other. Further, in the present embodiment, ten closing members 14 are provided at equal intervals in the circumferential direction of the cylinder of the extended air guide portion 13. The height (length in the axial direction) of the closing member 14 coincides with the height of the passage gap S (see FIG. 1B). The width (the length in the circumferential direction) of the closing member 14 is typically determined in consideration of a tapered flow path P (see FIG. 1B), which will be described later, but in this embodiment, the closing member 14 It is formed about 0.8 to 1.5 times the height of 14. Moreover, the attachment nail | claw 14c for connecting with the conversion member 16 (refer FIG. 1) is provided in the front-end | tip of some closure members 14. FIG. The attachment claw 14 c is smaller in width than the closing member 14 and is provided so as to extend in the axial direction opposite to the air guide portion 11. In the present embodiment, a total of five mounting claws 14c are provided on every other closing member 14, but a number that can stabilize the positional relationship between the air guide portion 11 and the conversion member 16 is provided. That's fine.

  FIG. 2B shows an air volume adjusting sleeve 15 that adjusts the flow rate of the air M derived from the passage gap S (see FIG. 1B). The air volume adjusting sleeve 15 is a member that makes the opening area of the passage gap S variable, and includes a main body portion 15b, a flange portion 15g, and a plurality of protrusions 15p. The main body portion 15 b has an inner diameter into which the extended air guide portion 13 is inserted, and is formed in a cylindrical shape whose axial length is shorter than that of the extended air guide portion 13. The flange portion 15g is configured such that a donut-shaped flat plate extending from the one end of the main body portion 15b to the outer side in the radial direction of the cylinder perpendicular to the main body portion 15b is attached to the entire circumference of one end of the main body portion 15b. The protrusion 15p is formed in the same manner as the closing member 14, and is provided to extend in the axial direction of the main body 15b at a portion where the main body 15b and the flange 15g are in contact. The same number of protrusions 15p as the closing members 14 are provided at positions corresponding to the closing members 14 provided in the extended air guide portion 13. The air volume adjusting sleeve 15 configured as described above is fitted to the extended air guide portion 13 and is slid in the circumferential direction, so that the opening area of the passage gap S is increased by the area of the protrusion 15p protruding from the closing member 14. It is comprised so that it can be made small.

  FIG. 3 shows the conversion member 16. FIG. 3A is a side view of the conversion member 16, and FIG. 3B is a bottom view of the conversion member 16. The conversion member 16 is formed in a conical surface shape. The term “conical surface” generally means that a “cone” includes a conical surface and a bottom surface, but the conversion member 16 is intended to include a case where there is no member corresponding to the bottom surface of the cone. is there. The conversion member 16 is formed so that the angle between the rotation axis of the conical surface 16f and the bus bar 16g is preferably 60 degrees to 85 degrees, more preferably about 75 degrees. In this way, the end 16e opposite to the apex 16t of the conical surface 16f (the bottom of the conical surface, that is, the portion corresponding to the outer periphery of the bottom if there is a bottom) is the partition back surface 51b (FIG. 1 ( When arranged parallel to a) see), the angle of change from the flow direction along the conical surface 16f of the conversion member 16 to the flow direction along the partition back surface 51b is reduced, and a smooth flow can be achieved.

  The outer diameter (contour of the end 16e) of the conversion member 16 in the bottom view (FIG. 3B) is substantially the same as the outer diameter of the flange 15g of the air volume adjusting sleeve 15 (see FIG. 2B). Is formed. The end 16e of the conversion member 16 is close to the outside of the closing member 14 (the position of the closing member 14 when the air guide portion 11 is attached is shown in FIG. 3B) along the bus 16g. Incision is made (corresponding to the end 16e being cut), and the cut ends 16ec, which are the ends 16e on both sides of the cut line, are opened outward and bent. The term “closest to the outer side of the closing member 14” typically means close enough not to affect the attachment of the attachment claws 14c (see FIG. 2A) connected to the closing member 14. The number of the bus bars 16g on which the cut end portions 16ec are formed corresponds to the number of the blocking members 14 (10 in this embodiment), and the intervals are equal to each other. If this is more generalized, each blocking member 14 passes through the conversion member 16 and the aforementioned air guide portion 11, and an imaginary straight line passing through the cylindrical axis of the air guide portion 11 passes through the apex 16 t of the conical surface of the conversion member 16. Are assembled so as to be in contact with the conical surface 16f, the cut end portion 16ec is formed on the basis of the bus bar 16g passing through each closing member 14. The length Lv between the cut valleys and valleys of each cut end 16ec formed on the basis of two adjacent bus bars 16g is greater than the length Le between the intersections 16ip between the end 16e and the cut end 16ec. Is also getting longer. The ratio of the length Lv to the length Le is (Lv / Le) = about 1.1 to 1.5, preferably 1.2 to 1.3, and 2.5 in the present embodiment. The angle between the outside of the conical surface 16f and the surface of the cut end portion 16ec is typically 90 degrees or more and 120 degrees or less. In this way, a tapered flow path P (the flow path P is open) is formed in the conversion member 16.

  The imaginary straight line passing through the cylindrical axis of the air guide portion 11 passes through the apex 16t of the conical surface of the conversion member 16, and each closing member 14 is in contact with the conical surface 16f. As a result, the jet nozzle 10 (FIG. 1B) is configured. As shown in FIG. 3B, the width of the closing member 14 is typically such that an imaginary line LS passing through the intersection 16ip between the end 16e and the cut end 16ec and the apex 16t is sandwiched between the bus 16g. The width is formed so as not to protrude from both virtual lines LS when drawn at. A claw hole (not shown) through which the mounting claw 14c is inserted is formed in the conical surface 16f of the conversion member 16 at a position corresponding to the mounting claw 14c, and the mounting claw 14c is inserted through the claw hole (not shown). By doing so, the air guide portion 11 and the conversion member 16 are connected.

  As shown in FIG. 1, the jet nozzle 10 configured as described above is attached to a duct 38 laid in the underfloor space 55. The duct 38 is typically placed on the concrete slab 54. Thereby, labor saving of construction is achieved compared with the case where the duct 38 is suspended in the space. The duct 38 is preferably fixed directly or indirectly to the concrete slab 54 in place. The duct 38 may be a round duct or a square duct made of zinc iron plate, hard vinyl chloride, or synthetic resin. From the viewpoint of strength, it is preferable to use a round duct, and from the viewpoint of suppressing the height, it is preferable to use a square duct. In the duct 38, mounting holes 38h into which the main wind guide portion 12 of the jet nozzle 10 is inserted are formed so as to match the number and interval of the jet nozzles 10 provided. The mounting hole 38h may be formed in a size that allows the main wind guide portion 12 to be inserted without any gaps. However, on the assumption that the mounting member described below is used, there is a gap around the main wind guide portion 12. You may form in the magnitude | size which can be performed.

  4A and 4B are diagrams illustrating the attachment member 39, where FIG. 4A is a plan view and FIG. 4B is a side view. The mounting member 39 has a size including the outer diameter of the main air guide portion 12 of the jet nozzle 10 (see FIG. 1B), and preferably has a flange portion 15g (see FIG. 2B) of the air volume adjusting sleeve 15. A plate-like sponge having a size approximately equal to the outer diameter of (see) is processed and configured as follows. That is, a process is performed in which a plurality of cuts 39c are radially formed (in the radial direction) from the center of the virtual circle CS up to the circumference of the virtual circle CS virtually drawn inside the plate-like sponge. The size of the virtual circle CS is determined as appropriate within a range that is typically larger than the outer diameter of the main air guide portion 12 and smaller than the diameter of the mounting hole 38h of the duct 38, but may be larger than the mounting hole 38h.

  The mounting member 39 is placed on the duct 38 so that the virtual circle CS is aligned with the mounting hole 38h of the duct 38 (at this time, the mounting member 39 may not be fixed to the duct 38). When the guide portion 12 is inserted into the virtual circle CS and the mounting hole 38h, the plurality of cut pieces 39p formed by the cuts 39c are bent into the duct 38 and the outer surface of the main wind guide portion 12 and the virtual circle are bent. It comes to be located between CS and the mounting hole 38h. At this time, the thickness of the plate-like sponge and the virtual circle CS are set such that each cut piece 39p is sandwiched between the outer surface of the main wind guide portion 12, the virtual circle CS, and the mounting hole 38h and is typically crushed by about half. The relationship with the diameter of the mounting hole 38h is determined. Each of the cut pieces 39p is crushed and sandwiched between the outer surface of the main air guide portion 12 and the mounting hole 38h, whereby the jet nozzle 10 is fixed to the duct 38. In addition, from the viewpoint of reducing the flow resistance of the air M from the duct 38 to the main wind guide portion 12, the inside of the duct 38 is located more than the lower end of the main wind guide portion 12 when the main wind guide portion 12 is inserted into the mounting hole 38h. The cut piece 39p of the protruding portion may be removed (cut) in advance. Since the cut piece 39p exists between the outer surface of the main air guide portion 12 and the mounting hole 38h, the leakage of the air M can be reduced even if the diameter of the mounting hole 38h is large. Further, the top of the jet nozzle 10 (the end 16e of the conversion member 16 (see FIG. 3) corresponds) is pressed by the floor material 51 (see FIG. 1A), so that the duct is also generated by the positive pressure in the duct 38. The jet nozzle 10 attached to 38 does not come off. By attaching the jet nozzle 10 to the duct 38 using the attachment member 39 in this way, the construction is simplified and labor saving can be achieved.

  As shown in FIG. 1A, one end of the duct 38 is connected to the air conditioner 61 via a chamber (not shown), another duct (not shown), and the other end (end) is an underfloor space. 55 is open. The jet nozzle 10 is attached to a height at which the top (the end 16e of the conversion member 16 (see FIG. 3)) is in contact with the partition back surface 51b. Typically, before the flooring 51 is laid, the end 16e protrudes from the finished surface toward the room to be cooled R, and when the flooring 51 is applied, the jet nozzle 10 is pushed and main wind guidance is performed. When the portion 12 enters the duct 38, the end portion 16e is fixed by the cut piece 39p at a position where the end portion 16e contacts the partition back surface 51b. A plurality of jet nozzles 10 are provided at predetermined intervals in accordance with the mounting holes 38h. The predetermined interval is such an interval that the temperature unevenness of the cooled or warmed flooring 51 becomes an allowable range when the air M ejected from the jet nozzle 10 diffuses along the partition back surface 51b. The floor material 51 on the side opposite to the air conditioner 61 is provided with an air vent 65 so that the air M in the underfloor space 55 can be blown out to the room to be cooled R.

  The operation of the air conditioning system 1 will be described with reference to FIGS. The air M whose temperature is adjusted by the air conditioner 61 (cool air during cooling and warm air during heating) flows through a duct 38 that is laid horizontally in the underfloor space 55. When the air M flowing in the duct 38 reaches the jet nozzle 10, a part of the air M is introduced into the main wind guide portion 12 and the rest continues to flow in the duct 38. The air M introduced into the main wind guide portion 12 flows toward the partition back surface 51b (on the partition back surface 51b). Thereafter, when the air M reaches the conversion member 16, it spreads radially around the apex 16t and flows along the conical surface 16f, leaving a component in the vertical direction on the partition back surface 51b and a component in the direction parallel to the partition back surface 51b. The flow direction is converted to a flow having At this time, since the flow direction of the air M is changed so as to flow along the conical surface 16f, the pressure loss is smaller and smoother than when the air M directly collides with the partition back surface 51b in the vertical direction and diffuses. The flow direction can be changed.

  The air M flowing along the conical surface 16f enters the extended wind guide portion 13 on the way, and flows through the expanded space toward the end portion 16e. On the way to the end 16e, the air M is blocked from reaching the closing member 14 and passes through a passage gap S formed between the adjacent closing members 14. When the air M passes through the passage gap S between the closing members 14, the flow velocity increases and flows into the tapered flow path P. The air M that has flowed into the flow path P is ejected from the jet nozzle 10 so that the flow speed is increased and the diffusion in the circumferential direction is suppressed and the radial direction of the conversion member 16 in a plan view is extended in a plan view. Is done. That is, the directivity of the air M increases as it passes through the passage gap S and the flow path P. Thereby, the reach distance of the air M ejected from the jet nozzle 10 is longer than that of the conventional heat medium diffusing member, and effective cooling and heating can be performed with a smaller number of nozzles than in the past.

  In the air M ejected from the jet nozzle 10, the floor material 51 is efficiently cooled or warmed by the cold or warm heat of the air M. Then, cold or warm heat is radiated from the cooled or warmed flooring 51 to the cooled and heated room R, and the cooled or heated room R is cooled or heated. In the air conditioning system 1, not only the indoor temperature is set to the target value, but also the effect temperature (body temperature) is adjusted to an appropriate value. It is said that the temperature (effect temperature) that the occupant actually feels when performing air conditioning is effect temperature = (radiation surface temperature + room air temperature) / 2. Here, the radiant surface temperature is the temperature of the surface from which radiant heat is released. Therefore, in the cooling / heating system 1, if an sensible temperature of 24 ° C. is to be obtained during cooling, the temperature of the air M supplied to the cooling / heating room R is reduced by cooling the temperature of the flooring 51 to 20 ° C. 28 ° C is sufficient. If the air temperature in the room to be cooled R is set to 24 ° C. by the convection method, the temperature of the air M blown from the air conditioner 61 is the difference between the indoor air and the blown air temperature generally adopted. When it is set to 10 ° C., it is cooled to 14 ° C. However, in the cooling / heating system 1, the temperature of the air M that cools the flooring 51 to 20 ° C. is about 18 ° C., which saves energy. Further, in the cooling / heating system 1, if an sensible temperature of 24 ° C. is to be obtained during heating, the temperature of the air M supplied to the cooling / heating room R is 20 by heating the temperature of the flooring 51 to 28 ° C. ℃ is enough. In addition, although the directivity of the air M ejected from the jet nozzle 10 is increased, a portion where the air M is not in direct contact with the floor material 51 may occur, but the temperature gradient in the floor material 51 becomes smooth due to heat conduction. Therefore, the uneven temperature of the sensible temperature is within the allowable range of the occupants.

  A part of the air M that continues to flow in the duct 38 without being introduced into the main wind guide portion 12 of the jet nozzle 10 is introduced into the main wind guide portion 12 of the jet nozzle 10 provided further downstream, and the rest is a duct. It flows in 38. By repeating this, the air M in the duct 38 is opened to the underfloor space 55 at the end. The air M opened to the underfloor space 55 is blown out from the air control opening 65 into the cooled room R, and the temperature distribution in the cooled room R is mitigated by the convection of the air M. As described above, in the cooling / heating system 1, the temperature of the air M supplied to the cooling / heating room R in order to obtain the predetermined sensible temperature is sufficient to be close to the set temperature as compared with the case of the convection method. It is also possible to obtain a predetermined sensible temperature by supplying the air M after cooling or heating to the room to be cooled R. The air M blown into the room to be cooled R is introduced into the air conditioner 61 and the temperature is adjusted, and then blown out again into the duct 38. Thereafter, the above cycle is repeated.

  In the above description, the place where the jet nozzle 10 is installed is under the floor, but it may be in the ceiling or in the wall, and may be a plurality of these places. Further, the heat of the air M whose temperature has been adjusted by the air conditioner 61 is stored in the concrete slab 54 or the concrete wall case, and the temperature stored by the heat stored in the case when the air to be cooled R is air-conditioned. The partition material may be cooled or heated by ejecting the air M that has risen or lowered from the jet nozzle 10.

  In the above description, the air guide portion 11 is configured to include the main air guide portion 12 and the extended air guide portion 13. However, the extended air guide portion 13 is not provided at the tip of the main air guide portion 12. A blocking member 14 may be provided. In this case, typically, the diameter of the air guide portion 11 does not change. If the extended air guide portion 13 is not provided, the jet nozzle 10 can be easily manufactured. On the other hand, when the extended air guide portion 13 is provided, the air volume adjustment by the air volume adjusting sleeve 15 is simplified.

  In the above description, it is assumed that the air volume adjusting sleeve 15 is fitted to the extended air guide portion 13, but the air volume adjusting sleeve 15 may not be provided when the air volume need not be adjusted. When the air volume adjusting sleeve 15 is not provided, a member corresponding to the flange portion 15g is preferably provided at the lower end of the passage gap S on the air guide portion 11 side.

DESCRIPTION OF SYMBOLS 1 Air-conditioning system 11 Air guide part 14 Closure member 16 Conversion member 16e End part 16ec Cutting end part 16f Conical surface 16g Bus-line 16t Vertex 51 Floor material 51b Compartment back surface 61 Air conditioner M Air P Tapered flow path R Cooling / heating room S Passing gap

Claims (3)

A temperature control device for adjusting the temperature of the gaseous heat medium;
A cylindrical air guide that guides the heat medium, the temperature of which has been adjusted by the temperature adjusting device, to the rear side of a section screen that forms a boundary of a cooling / heating room to be cooled or heated; ;
A conversion member that converts the heat medium that has flowed through the air guide portion into a flow along the section screen, and the heat medium passes between the heat guide portion and an end of the air guide portion. A conversion member that forms a long passage gap in the cylindrical circumferential direction;
A closing member that partially closes the passage gap, and a plurality of closing members provided at intervals in the cylindrical circumferential direction;
A tapered flow path through which the heat medium after passing through the passing gap between the adjacent closing members passes is formed in the conversion member ;
A tapered portion attached to the entire circumference of the end portion of the air guide portion, the taper channel between the conversion member and extending outward in the cylindrical radial direction perpendicular to the air guide portion Further comprising a buttocks forming
Air conditioning system. The conversion member is formed in a conical surface;
The tapered flow path is bent so that the end opposite to the apex of the conical surface of the conversion member is cut along a generatrix corresponding to each closing member, and the cut end is raised. Formed by:
The air conditioning system according to claim 1.   The air guide part includes a main air guide part and an extended air guide part that is formed closer to the conversion member than the main air guide part and has a larger diameter and a shorter length than the main air guide part. Composed;
  The air conditioning system of Claim 1 or Claim 2.

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