GB2178521A

GB2178521A - Air conditioning system

Info

Publication number: GB2178521A
Application number: GB08615294A
Authority: GB
Inventors: Akio Ikemura; Minoru Kajiki
Original assignee: Yoshida Kogyo KK
Current assignee: YKK Corp
Priority date: 1985-06-21
Filing date: 1986-06-23
Publication date: 1987-02-11
Also published as: GB8615294D0; MY102947A; JPH0141066Y2; KR900007607Y1; JPS622925U; KR870001002U

Abstract

An indoor air conditioning system comprises a heating medium passage (2) provided in a floor (B) of a room and other heating medium passages (16) provided in a window frame of a window installed in a wall of the room, and a heating medium circulated either in serial or parallel relationship through the two heating medium passages in the floor and in the window frame. Thus, air conditioning around the window is effected with radiant heat radiated from a surface of the window frame while the entire floor is air conditioned with radiant heat radiated from the floor. <IMAGE>

Description

SPECIFICATION Air conditioning system This invention relates to an air conditioning system.

A system wherein a heating or cooling medium such as hot water or cold water is circulated in a window frame installed in a wall of a building to effect air conditioning around the window frame is heretofore known.

If radiant heat from a surface of a window frame is used for air conditioning, an influence of heat from outside a room can be prevented, but in case a room is wide, a sufficient air conditioning effect cannot be attained only by heat radiation from a surface of a window frame.

In order to resolve the problem, it may be required only to add direct indoor air conditioning using another air conditioning unit.

However, this will lead to a rise of the installation cost because such an additional air conditioning unit and a power source therefor are required in addition to a source of a heating medium to be circulated in a window frame.

Besides, higher power consumption will be needed, resulting in a rise of the running cost.

According to the invention, there is provided an air conditioning system, comprising a first heating or cooling medium passage provided in a floor of a room, and a second heating or cooling medium passage provided in a window frame of a window of a substantially rectanguar shape installed in a wall of the room, the second heating or cooling medium passage extending along four sides of the rectangular shape of the window frame the first and second heating or cooling medium passages being connected to a common heating or cooling medium source so that the heating or cooling medium can be circulated through the first and second heating or cooling medium passages in the floor and in the window frame.

By "heating or cooling medium" is meant, for a given system, that the medium may be only a heating medium or may be only a cooling medium, or may be selectively a heating medium at one time and cooling medium at another time.

Thus, air conditioning around the window can be effected with radiant heat radiated from a surface of the window frame while the entire floor is air conditioned with radiant heat radiated from the floor.

Accordingly, the air conditioning effect is satisfactory with a uniform temperature distribution with a high efficiency.

Further, since the heating or cooling medium is circulated through the heating medium passages in the window frame and in the floor, only one heating or cooling medium source is required without the necessity of installation of a specific air conditioning unit. Accordingly, the installation cost can be reduced and power consumption can be reduced, resulting in reduction in the running cost.

It is believed possible by means of the present invention to provide an indoor air conditioning system which can effect air conditioning of a room with high efficiency and can be produced at a reduced cost.

The invention will be described by way of examples with reference to the accompanying drawings, in which like references refer to like parts unless stated otherwise, and in which: Fig. 1 is a schematic illustration showing an entire indoor air conditioning system according to a first embodiment of the present invention; Figs. 2, 3 and 4 are cross sectional views, in an enlarged scale, taken along lines 11-11, lli- III, and IV-IV of Fig. 1, respectively; Fig. 5 is a partial cross sectional view of a floor; Fig. 6 is a schematic illustration showing an entire indoor air conditioning system according to a second embodiment of the invention; Figs. 7, 8 and 9 are cross sectional views, in an enlarged scale, taken along lines VII-VII and VIII-VIII and IX-IX of Fig. 6, respectively; and Fig. 10 is a schematic illustrating of an entire indoor air conditioning system according to a third embodiment of the invention.

Referring first to Fig. 1 which is a schematic illustration of an entire indoor air conditioning system, a window 1 is shown installed in a wall A of a building while a heating or cooling medium passage 2 is formed to extend in a zigzag form in a floor B.

The window 1 is in the form of a sliding window including a window frame 4 installed in an opening 3 of the wall A and an indoorside, horizontally sliding, paper shutter 5 and an outdoor-side, horizontally sliding, rain shutter 6, installed in the window frame 4. The window frame 4 includes an upper horizontal frame member 10, a lower horizontal frame member 11 and a pair of left and right vertical frame members 12 which are assembled into a rectangular shape. A waist-high transom 13 extends between the left and right vertical frame members 12 to thus define an upper framework 14 for mounting the sliding shutters therein and a lower framework 15. The indoor side and outdoor side shutters 5 and 6 are installed in the upper framework 14.

A heating or cooling medium passage 16 is formed in each of the upper and lower frame members 10 and 11 and the left and right vertical frame members 12, and the heating or cooling medium passages 16 are connected in series around the rectangle to form a single continuous passage. Meanwhile, the waist-high transom 13 has formed therein an entrance side heating or cooling medium passage 17 which is opened to and extends rightwardly from the heating or cooling medium passage 16 formed in one of the vertical frame members 12 and an exit side heating or cooling medium passage 18 which is opened to and extends leftwardly from the heating or cooling medium passage 16 formed in the other vertical frame member 12.The entrance side heating or cooling medium pasage 17 is connected to first and second heating or cooling medium supply pipes 19 and 20 while the exit side heating or cooling medium passage 18 is connected to a heating or cooling medium discharging pipe 21. The first heating or cooling medium supply pipe 19 and the heating or cooling medium discharging pipe 21 are connected to a heating or cooling medium source such as a hot water boiler or chiller not shown while the second heating or cooling medium supply pipe 20 is connected to the exit side of the heating or cooling medium circuit 2 formed in the floor B. A third heating or cooling medium supply pipe 22 is connected to the entrance side of the second heating or cooling medium passage 2.The third heating or cooling medium supply pipe 22 is connected to a change-over valve 23 provided intermediately of the first heating or cooling medium supply pipe 19.

;-he change-over valve 23 is formed as an ordinary cross change-over valve having a first change-over position in which the heating or cooling medium is supplied to the third supply pipe 22, and a second change-over position in which the heating or cooling medium is supplied to the first supply pipe 19.

Accordingly, when the change-over valve 23 is in the first change-over position, the heating or cooling medium from the heating or cooling medium source, such as, for example, hot or cold water, is supplied to the third supply pipe 22 via the change-over valve 23 and then passes through the passage 2 in the floor B and flows into the entrance side passage 17 via the second supply pipe 20 whereafter it circulates along the four continuous passages 16 in the window frame 4 and then, passing through the exit side passage 18 and the discharging pipe 21, it is discharged to the heating or cooling medium source.

Accordingly, hot water from the heating medium source can be used to effect heating of the floor and around the window.

Cooling of the floor and around the window can also be effected in a similar manner using cold water as a cooling medium.

In this instance, cooling of the floor may sometimes make people feel uncomfortable. In such a case, the change-over valve 23 will be changed over to the second position to cause cold water to be directly supplied from the first supply pipe 19 to the entrance side passage 17 without allowing cold water to flow into the passage 2 in the floor B.

Now, details of the individual components will be described.

The upper frame member 10, the lower frame member 11 and the waist-high transom 13 are formed as thermal insulating composite members including indoor side members 10,, 11, and 13,, outdoor side members 102, 112 and 132, and thermal insulating members 30 which interconnect the indoor side members 10,, 111 and 131 and the outdoor side members 102, 112 and 132, respectively, as shown in Fig. 2.Meanwhile, each of the vertical frame members 12 is constituted as a thermal insulating composite member including an indoor side member 12,, an outdoor side member 122, and a thermal insulating member 31 interconecting the indoor side member 121 and the outdoor side member 122 as shown in Fig. 4. Accordingly, the window frame 4 is formed as a whole as thermal insulating window frame.

Upper and lower rails 32 and 33 are formed on the indoor side and outdoor side members 10, and 131 of the upper frame member 10 and the waist-high transom 13, respectively, and the indoor side sliding shutter 5 is mounted for leftward and rightward sliding movement along the upper and lower rails 32 and 33 while upper and lower rails 34 and 35 are formed on the outdoor side members 102 and 132, respectively, and the outdoor side sliding shutter 6 is mounted for leftward and rightward sliding movement along the upper and lower rails 34 and 35. Top ends of the indoor side and outdoor side sliding shutters 5 and 6 are contacted with an upper AT (i.e.

airtight) member 37 which is mounted between an attachment 36 secured to the indoor side member 10 of the upper frame member 10 and the outdoor side member 102 while bottom ends are contacted with a lower AT member 39 which is mounted between another attachment 38 secured to the indoor side member 13; of the waist-high transom 13 and the outdoor side member 132. Meanwhile, an end of the indoor side sliding shutter 5 is contacted with a vertical AT member 40 mounted on the outdoor side member 122 of one of the vertical frame members 12 while the opposite end of the outdoor side sliding shutter 6 is contacted with another vertical AT member 42 which is mounted between a further attachment 4 secured to the other indoor side member 12; and the other outdoor side member 122.

A hollow spacing 43 having a circular cross section and serving as the heating medium passage 16 is formed in each of the indoor side members 10;, 11; and 12; of the upper and lower and vertical frame members 10, 11 and 12, respectively, while a hollow spacing 44 having a circular cross section and serving as the entrance and exit side passages 17 and 18 is formed in the indoor side member 1 3i of the waist-high transom 13. The hollow spacing 44 is partitioned at an itermediate portion thereof to define the entrance and exit side passages 17 and 18, and the first and second supply pipes 19 and 20 and the discharging pipe 21 are connected to the hollow spacing 44 formed in the indoor side member 131 of the waist-high transom 13.

A decoration panel 45 is made of a thermal insulating material and mounted between the indoor side and outdoor side members 13 and 132 of the waist-high transom 13, between the indoor side and outdoor side members 111 and 112 of the lower frame members 11, and between the indoor side and outdoor side members 12; and 122 of the left and right vertical frame members 12 with packing members 46 interposed therebetween. The decoration panel 45 extends over the entire lower framework 15 of the window frame 4.

The floor B has a four-layer structure including a thermal insulating plate 47, a thermal insulating and accumulating plate 48, a heat radiating plate 49 and a finish member 50, and a pipe 52 serving as the heating or cooling medium passage 2 is mounted in a recess 51 of the thermal insulating and accumulating plate 48 with a heat accumulating material 53 filled in a spacing around the pipe 52.

Figs. 6 to 9 shows a second embodiment of the invention. The present embodiment is a modification of the first embodiment such that an air conditioning ventilating fan 60 is additionally provided which can exchange sensible heat and latent heat at the same time in order that heat may be exchanged between an outdoor air and indoor air and outdoor air may be blown out from a waist-high transom 13.

In particular, the air conditioning ventilating fan 60 is mounted between an indoor side member 13, of the waist-high transom 13 and another indoor side member 11, of a lower frame member 11 with thermal insulating sheets 61 interposed therebetween. The air conditioning ventilating fan 60 has an outdoor air entrance 60a, an outdoor air exit 60b, an indoor air entrance 60c and an indoor air exit 60d and includes a heat exchanger 60e for exchanging heat between outdoor air and indoor air and an air blower (not shown). It is to be mentioned that detailed description of the structure of the air conditioning ventilating fan 60 is omitted herein because it is already known in the art.

The indoor and outdoor side members 13, and 132 of the waist-high transom 13 are hollow, and the hollow spacing of the outdoor side member 132 is divided by a partition wall into two left and right sections which are opened to the exterior by way of a pair of openings 62 formed in a lower wall 13a. Fins 63 are mounted on outer surfaces of the openings 62, and an entrance duct 64 and an exit duct 65 extend into the hollow sections of the outdoor side member 132 and are connected to the outdoor air entrance 60a and the indoor air exit 60d, respectively, via the hollow spacing of the indoor side member 131.

A lower wall 1 3b of the indoor side member 13; of the waist-high transom 13 has an entrance hole 66 formed therein and opened to the outdoor air exit 60b while an upper wall 13c of the indoor side member 131 has a blow-off unit 68 mounted thereon which has a plurality of blow-off holes 67 therein.

An indoor side member 111 of the lower frame member 11 is hollow, and an indoor side-wall 11 a of the indoor side member 111 is increased in thickness with a hollow spacing 43 formed therein. An indoor air inlet port 69 is formed at a lower portion of the indoor side wall 1 1a, and a filter 70 is mounted outside the indoor side wall 1 1a via a mounting attachment 71.Thus, indoor air passes through the filter 70 and enters the hollow spacing from the indoor air inlet portion 69 and then flows into the indoor air entrance 60c through an exit 72 formed in the upper wall 1 1b. Then, the indoor air is heat-exchanged with outdoor air in the heat exchanger 60e and is then discharged outside through the indoor air exit 60d, the exit duct 65 and then the opening 62.

Accordingly, outdoor air is heat-exchanged with indoor air and is thereafter blown off the blow-off holes 67 toward the upper frame member 10 so that air conditioning around the window 1 can be done efficiently by heat of a heating or cooling medium which is circulated through a heating or cooling medium circuit within the window frame 4 together with radiant heat which is radiated from a surface of the window frame 4.

It is to be noted that while in the embodiments described above a heating or cooling medium is circulated first through the passage 2 in the floor B and then through the heating or cooling medium circuit in the window frame 4, it may be circulated reversely first through the circuit in the window frame 4 and then through the passage 2 in the floor B.

However, since heat loss of a heating medium is greater in its circulation through the circuit in the floor B than through the circuit in the window frame, it is more efficient that a heating medium is first circulated through the passage 2 in the floor B.

Preferably, a double-glazed or triple-glazed, horizontally sliding, shutter, not shown, is provided between shutters 5 and 6, to improve the thermal insulating effect between the indoor and outdoor sides.

Further, it is possible to provide a discharge regulating valve for each supply pi:e in order to vary a flow rate of a heating or cooling medium to control the temperature.

Fig. 10 shows a third embodiment of the invention. In the present embodiment, a heating or cooling medium supplied from a heating or cooling medium source is circulated simultaneously through a heating or cooling medium circuit 16 in a window frame 4 and through a heating or cooling medium passage 2 in a floor B. In particular, for example, hot or cold water is diverted into branched supply-pipe 19' and 22', and the hot or cold water flowing through the supply pipe 22' and then through a floor B is directly returned to a discharging pipe while the hot or cold water flowing through the supply pipe 19' and then through a window frame 4 then passes through an entrance side passage 17 and then through four continuous passage 16 and returned to and discharged from an exit side passage 18 is a similar manner as in the first and second embodiments.

Since the heating or cooling medium flows separately and in parallel relationship through the window frame 4 and through the floor B, temperature drop or rise of the heating or cooling medium is little, and hence air conditioning can be attained with a high efficiency.

Claims

1. An air conditioning system, comprising a first heating or cooling medium passage provided in a floor of a room, and a second heating or cooling medium passage provided in a window frame of a window of a substantially rectangular shape installed in a wall of the room, said second heating or cooling medium passage extending along four sides of the rectangular shape of the window frame, said first and second heating or cooling medium passages being connected to a common heating or cooling medium source so that the heating or cooling medium can be circulated through said first and second heating or cooling medium passages in the floor and in the window frame.

2. An air conditioning system according to claim 1, wherein said first and second heating or cooling medium passages in the floor and in the window frame are connected and communicated in serial relationship with each other so that the heating or cooling medium may be circulated first through said first heating or cooling medium passage and then through said second heating or cooling medium passage or vice versa.

3. An air conditioning system according to claim 1, wherein said first and second heating or cooling medium passages in the floor and in the window frame are connected in parallel relationship so that the heating or cooling medium can be separately circulated through said first heating or cooling medium passage and through said second heating or cooling medium passage.

4. An air conditioning system according to claim 3, further comprising a change-over valve located at a branching position between said first and second heating or cooling medium passages and having a first position in which the heating or cooling medium is allowed to flow into said first heating or cooling medium passage in the floor and a second position in which the heating or cooling medium is prevented from flowing into said first heating or cooling medium passage.

5. An air conditioning system according to claim 1, wherein said second heating or cooling medium passage includes hollow spacings formed in and extending along upper and lower and vertical frame members of the window frame.

6. An air conditioning system according to claim 5, wherein said hollow spacings have a circular cross section.

7. An air conditioning system according to claim 1, further comprising an air conditioning ventilating fan for exchanging heat between outdoor air and indoor air and for blowing out indoor air after heating exchanging outside the room.

8. An air conditioning system according to any one of the preceding claims, further comprising a third heating or cooling medium passage provided in a waist-high transom of the window and connected to said first and second heating or cooling medium passages.

9. An air conditioning system substantially as described with reference to and as illustrated in Figures 1 to 5 of the accompanying drawings.

10. An air conditioning system substantially as described with reference to and as illustrated in Figures 6 to 9 of the accompanying drawings.

11. An air conditioning system substantially as described with reference to and as illustrated in Figure 10 of the accompanying drawings.