JP2007292412A - Double tube type heat exchanger used for multipurpose - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve problems in melting snow on a roof wherein a method of sprinkling underground water or rainwater is limited in implementation because of causing drying-up, and a method of piping a single heat radiating pipe on the roof or under the roof requires long meandering piping, which inhibits construction to the existing roof, and moreover it is systematically complicated and bad in thermal efficiency and has problems in respect of snow melting effect and fuel consumption. <P>SOLUTION: This heat exchanger of a double tube type comprising an outer tube and an inner tube is constituted to circulate a heat medium inside the inner tube and the outer tube and to reciprocate the heat medium in the same tube. This double tube type heat exchanger is inserted between a rafter and a rafter or between the rafter and a sheathing roof board of the roof to melt snow on the roof. Furthermore, with the use of the double tube type heat exchanger, the temperature of an agricultural house and a storage tank can be regulated. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention is a dual-pipe heat exchanger that is highly efficient and easy to install and can be used for multiple purposes, and is a device that enables snow melting on a roof and temperature control of an agricultural house.

Conventionally, in order to remove the snow accumulated on the roof, it has been carried out by manual snow removal work or by spraying ground water on the roof.
Recently, it has been proposed to melt the snow on the roof by meandering a radiator pipe on the roof or attic.
JP 2002-322828 A

Among the conventional methods described above, the method using human power has a problem of requiring heavy labor.
The method of spraying groundwater has a limit in implementation because it causes depletion of groundwater.
The method of piping a single heat pipe on the roof or attic is a long meandering pipe, so it is impossible to install it on the existing attic and it requires modification of the roof. There was a problem that the expense became huge.
Further, the meandering pipe of the heat radiating pipe has a long total length of the pipe, so that the system becomes complicated, the thermal efficiency is poor, and the difference between the inlet temperature and the outlet temperature of the circulating fluid is large, so that snow disappears.
Furthermore, since a long time is required for the preheating operation, the problem is that the fuel consumption is high.

This invention solves the problems of the above-mentioned conventional equipment, can be installed easily and inexpensively even on existing roofs, has high thermal efficiency, is easy to maintain, and saves energy by melting snow on the roof, as well as floors and walls, etc. It is intended to provide a device that is also used for heating. The structure is (1) a double pipe having an outer pipe and an inner pipe having an opening at the inner end thereof, and the heat medium circulates in the inner pipe and in the gap between the outer pipe and the inner pipe. A temperature control device for a building having a double-pipe heat exchanger in which a pipe and a return pipe are brought together at the same pipe end.
(2) Insert the double-pipe heat exchanger described in (1) above into the hollow part of the roof tile of thatched roof, and connect and fix each double-pipe heat exchanger to the connecting pipe at the arabesque part of the eaves. A snow melting device for a roof, characterized in that

(3) Insert a T-type or L-type double-pipe heat exchanger between the rafters and the rafters, from the attic, into the rafters above the eaves girder and the rafters on the base plate, up to the eaves nose cover, The snow melting apparatus for a roof having a double-pipe heat exchanger according to the above (1), wherein the double-pipe heat exchanger is connected to a return and return pipe for circulation at the ridge.
(4) Insert the double-pipe heat exchanger described in (1) above between an aluminum foil, a metal heat conduction plate, etc. and fit the soaking plate together with a heat insulating material, an aluminum sheet, and a holding plate. Building temperature control device, characterized by being fixed to roof, floor and wall.

(5) Auxiliary metal fittings are vertically attached to the snow stop fittings, and roofs installed at appropriate intervals so as to expose the double pipe heat exchanger described in (1) above or below the auxiliary fittings. Snow melting equipment.
(6) The lip groove type steel was attached to the arabesque part of the eaves, the double pipe heat exchanger described in the above (1) was installed in the hollow, the metallic conductive plate was attached on the groove type steel, and the tin plate was stretched Roof snow melting equipment.

(7) A building temperature control device having the double-pipe heat exchanger according to (1) above in a pillar in the house or in the ground.
(8) The temperature adjusting device according to (1), wherein the outer tube is flat, and is installed inside or outside a tank, a tube, or the like.

As described above with reference to the drawings, the present invention is a temperature control device that can be used not only in a new construction but also in an existing house.
For example, it is a snow melting device that is easy to install, inexpensive, excellent in thermal efficiency, and easy to maintain and maintain, without changing tin or changing roofs. In addition to the roof, it can be used for floor heating, wall heating, solar and road heating.
It can also be used in a wide range of fields such as agricultural house cultivation, food processing, drying and bioprocessing.

  The double pipe heat exchanger of the present invention is composed of a double pipe of an outer pipe and an inner pipe, the gap between the outer pipe and the inner pipe communicates with each other, and the heat medium flows in the reverse direction through the gap and the inner pipe. It has a circulation function, and the outgoing pipe and return pipe can be connected to the same pipe end, and it can be freely manufactured to suit the structure and shape of a new construction or existing roof with a single circulation heat exchanger.

  According to this double pipe heat exchanger, there is no need for roof modification or long meandering piping of the heat radiation pipe, the entire system is greatly simplified, and it can be easily installed in a small gap. Costs and construction costs can be reduced.

  If the double pipe heat exchanger used in this invention is made of copper, aluminum, SUS pipe, etc., it has excellent corrosion resistance and thermal conductivity, so the flow rate of the heat medium to be circulated by reducing the inner pipe is small, The heat radiation area can be increased by increasing the heat radiation area of the outer tube, making it compact, reducing the overall temperature difference, and greatly reducing fuel consumption.

When installing this double-pipe heat exchanger, it goes without saying that it is a new construction, and in existing tiled bar roofs, the double-pipe type heat exchanger is inserted into the hollow of the tile bar with the cap at the eaves end removed. , Connect and fix the connecting pipes at the arabesque section of the eaves of each double pipe heat exchanger.
The roofing board and tin are warmed from the entire roof tile by the conduction heat and radiant heat of the double-pipe heat exchanger, and the snow can be melted efficiently on the roof. In addition, the eaves are warmed by heat radiation from the connecting pipes (entrance pipes and outlet pipes) of the arabesque part, the forward pipes of the heat medium circulation, and the return pipes, thereby preventing the occurrence of icicles.
And in the summer, once-through heat and radiant heat of about 65 ° C or higher, which is stored in large quantities on the tin plate and attic, are collected by a double-pipe heat exchanger and used as a solar system by exchanging heat in a circulating and hot water tank. A snow melting device with a roof of two birds with one stone can be provided.

  Between the rafters and rafters of the tin-roofed roof, a double-pipe heat exchanger with a T-shaped or L-shaped outer shape is hidden from the roof to the rafters above the eaves girder and the rafters on the baseboard. It can be used effectively as a snow melting device for the roof by inserting it up to the board and installing it closely to the field board, and connecting each double-pipe heat exchanger to the circulating forward and return pipes at the ridge of the attic.

Embodiments of the present invention will be specifically described below with reference to the drawings.
1 and 2 show a double-tube heat exchanger 2HT. FIG. 1 and FIG. 2B are an internal structure diagram and a sectional view. The outer tube is integral with the connecting tube S1, and the inner tube is integral with the connecting tube R1, and is constituted by a double tube of the inner tube and the outer tube. A gap between the outer pipe and the inner pipe communicates with the inner pipe single part inside to change the flow direction, and the heat medium flows in the opposite direction through the gap and the inner pipe, thereby having a circulation function. The connection pipe forward pipe S1 and return pipe R1 can be connected to the end of the double-pipe heat exchanger, resulting in a single circulating heat exchange. This is a double-tube heat exchanger 2HT that can be manufactured to fit. FIG. 2 shows a diagram of an exposed and flat double-tube heat exchanger, which is a top-exposed double heater of FIG. The lower part of the figure is a round shaped body, both made of steel pipe. Fig. 2 is a view of a flat double tube heat exchanger, which is directly connected to a tin plate.

FIG. 3 shows an eaves portion of the tile rod 19 shown in FIG. The cap 20 is removed, and the double-pipe heat exchanger 2HT is inserted into the hollow of the tile rod 19 from the removed side, and each double-pipe heat exchanger 2HT is connected to the connecting pipes S1, R1 at the arabesque portion 22 of the eaves 13 Connect and fix. The tile rod 19 and the base plate 9 are warmed by the conduction heat and radiant heat of the double-pipe heat exchanger 2HT.
In addition, the arabesque 22 and the eaves 13 were warmed to prevent the occurrence of icicles caused by snow accumulation and snowmelt water at the eaves. In the figure, 23 indicates the attic side.

  In the summer, as shown in FIGS. 3A and 3B, a large amount of solar heat is stored in the roof plate 9 and the attic 23 from the tin plate 8 and the tiles 19 to reach a temperature of about 65 ° C. The hot water collected and heated by the double-pipe heat exchanger 2HT in FIG. 5 is returned to the main pipe S, the three-way valve V1, the circulation pump P, and the double-pipe heat exchange. It is circulated in the order of S1 of the vessel 2HT. The water in the hot water storage tank ST is heated by the heat exchanger EX to become hot water so that it can be used as a solar system.

  As described above, the apparatus of the present invention can be used as a snow melting apparatus for a roof using a double-pipe heat exchanger in winter, and can be used in two birds as one hot water supply apparatus using natural solar heat in summer. And this double pipe heat exchanger greatly simplifies the equipment and can be installed at low cost, improving heat efficiency, low maintenance cost, easy maintenance and maintenance of roof snow melting equipment with double pipe heat exchanger It is.

FIG. 4 is an invention corresponding to claim 3 and is a construction process diagram for further improving the efficiency of heat exchange of solar heat and providing a snow melting device for a roof that does not have a sense of incongruity without exposing the device to the surface of the building. .
4 is a perspective view of the roof. Needless to say, in the case of a new construction, a double-tube heat exchanger (T) 2HT manufactured in a T shape or an L shape between the rafter 11 and the rafter 11 of the existing roof. Are inserted from the attic 23 to the rafter 11 above the eaves girder 12 and the rafter height of the rafters of the base plate 9 up to the eaves nose concealment plate 14, and each of the double-pipe heat exchanger 2HT and the connecting pipe R1 The main pipe R and the connecting pipe S1 are connected to the circulation main pipe S at the ridge. It is detail drawing of the snow melting apparatus of a roof more efficient than the structure of Claim 2 which can connect the double pipe type heat exchanger 2HT of both roofs to the ridge side circulation main pipe.

  4B, the bottom of the roof and floor (field plate, floor plate) is aluminum foil, double pipe heat exchanger 2HT, conductive plate (aluminum plate, copper plate), carbon-based heat equalizing plate 2 ( It is a figure which makes it fit in the heat insulating material 3 aluminum sheet | seat 5, and the presser plate 6 by making it fit to a ceramic board and other board | plates. By attaching this to the floor, wall, etc., heating with further improved thermal efficiency is possible, and fuel consumption can be reduced.

  FIG. 5 is a system diagram in which water is circulated through the double-pipe heat exchanger on the roof of the present invention to boil hot water and supply hot water, and uses solar energy greatly.

  FIG. 6 is a drawing in which an exposed heat exchanger is attached to the roof. FIG. 6B is a perspective view of the whole when attached to the roof. FIG. 6B is a side view on the roof. An angled steel 28 is attached, and an exposed double pipe heat exchanger HX (for example, a round shape or a square shape having an outer diameter of 30 to 40 mm) that can withstand the weight of snow shown in FIG. This is a horizontal mounting method in which steel pipes (made of SUS pipe) are installed at appropriate intervals. If three to four are installed under the roof and the antifreeze heat medium is circulated, the snow melts quickly. 25 heat-resistant metal foil tapes and hanging metal fittings 29 are provided above the heat exchanger HX, and the snow is moved downward by gravity and melted in sequence. In the figure, 29 is a hanging metal fitting, and 34 is a heat sink. A flat double pipe heat exchanger DH shown in FIG. 2D was directly bonded to the tin plate 8 with a heat-resistant metal foil tape 25 or the like as a heat source to obtain a roof snow melting device.

FIG. 7 is an apparatus for preventing the occurrence of icicles, and is suitable for use together with the exposed snow melting device for roofs shown in FIG. 6 and other snow melting devices for roofs.
FIG. 7 is a drawing of the eaves of the icicle occurrence prevention device. A lip groove steel 21 is attached to the arabesque portion 22 of the eaves 13, a double pipe heat exchanger 2HT is installed in the hollow, and a heat transfer plate (metal plate) 1 is attached on the groove steel 21 to form a tin plate. Hang. The lip groove steel 21 is warmed by the conduction heat and radiant heat of the double-pipe heat exchanger 2HT, and the conductive plate 1, the field plate 9, the tin plate 8, and the entire eaves are warmed to prevent the occurrence of glare. There is no sense of incongruity in appearance.

FIG. 8 shows an example of preventing freezing of rain gutters and vertical gutters. B is an example in which the double-pipe heat exchanger 2HT is closely installed inside the rain gutter 30 and the vertical gutter 31 and is heated from the inside to prevent freezing.
FIG. 2B is an example in which the double pipe heat exchanger 2HT is provided outside to prevent freezing.

  Fig. 9 shows the greenhouse H, the double-pipe heat exchanger 2HT installed on the struts B inside the both ends, at appropriate intervals, heating the house, and the double-pipe heat in the center of 畦 A. It is a figure which shows the example of the house heating system which lays the exchanger and can be used also for the heating apparatus in a remote area, and other agriculture.

  Further, FIG. 10 shows that the flat double-pipe heat exchanger shown in FIG. 2 is installed in close proximity to the outside of the tank and pipes, and cold / hot water is circulated through the double-pipe heat exchanger DH. It is a cooling and heating device that can be used for cooling, warming, thermal insulation, cold insulation devices and the like.

  As described above, the dual-tube heat exchanger that can be used for multiple purposes according to the present invention is a tube-type, so it is slim and can be used as a snow melting device by using it for an attic. In addition, since it can be used as a solar system using solar heat, it becomes envy for newly built houses, and the degree of use is large.

Double pipe heat exchanger structure Exposed, deformed double tube heat exchanger Installation diagram of double-pipe heat exchanger for rods T-type double tube heat exchanger installation diagram System diagram Exposed heat exchanger roof installation drawing A device for preventing the occurrence of icicles at the eaves Anti-freezing device for rain gutters and downpipe House system diagram Tank temperature control system diagram

Explanation of symbols

1 Conductive plate (metal plate)
2 Soaking plate (carbon-based)
DESCRIPTION OF SYMBOLS 3 Heat insulating material 4 Aluminum foil 5 Aluminum sheet 6 Presser board 7 Ruching 8 Ton board 9 Field plate 10 Floor board 11 Rafter 12 Girder 13 Front 14 Nasal concealed board 15 Draining 16 Building 17 Gaze board 18 Ceiling 19 Tile bar 20 21 lip groove steel 22 arabesque 23 attic 24 base plate 25 heat-resistant metal foil tape 26 snow stopper 27 angle steel 28 auxiliary angle steel 29 hanging bracket 30 rain gutter 31 vertical gutter 32 gutter cover 33 band 34 heat sink S primary side tube)
R Secondary side (return pipe)
S1 Double pipe heat exchanger connection pipe (inlet pipe)
R1 Double pipe heat exchanger connection pipe (exit pipe)
SUN Taiyo P Circulation pump B Hot water boiler ST Hot water tank EX Heat exchanger V1 Three-way valve (outward)
V2 Three-way valve (return)
2HT Double tube heat exchanger HX Exposed double tube heat exchanger (round, square)
DH Flat-type double-pipe heat exchanger (T) 2HT T-type double-pipe heat exchanger A 畦 H Cultivating house S Prop

Claims (8)

  A double pipe having an outer pipe and an inner pipe having an opening at the inner end thereof, and the heat medium circulates in the inner pipe and the gap between the outer pipe and the inner pipe, and the forward pipe and the return pipe of the heat medium are A temperature control device for buildings, characterized by a dual-pipe heat exchanger used for multiple purposes that is brought together at the same pipe end.   The double-pipe heat exchanger according to claim 1 is inserted into the hollow part of the tile bar of the tiled-roof roof, and each double-pipe heat exchanger is connected and fixed to the connecting pipe at the arabesque part of the eaves. A snow melting device for roofs.   A T-type or L-type double-pipe heat exchanger is inserted between the rafters and the rafters from the attic, through the rafters on the eaves girder and the rafters on the base plate to the nose cover plate at the eaves. The snow melting device for a roof having a double-pipe heat exchanger according to claim 1, wherein the heat exchanger is connected to a circulation return and return pipe at the ridge.   The double-pipe heat exchanger according to claim 1 is disposed between an aluminum foil, a metal heat conduction plate, etc., and a soaking plate is fitted with a heat insulating material, an aluminum sheet, a holding plate, a roof, A temperature control device for a building which is fixed to a floor or a wall.   A snow-melting device for a roof, which is installed at an appropriate interval so that the double-pipe heat exchanger according to claim 1 is exposed above or below the auxiliary metal fitting. .   A lip groove type steel is attached to the arabesque part of the eaves, and the double pipe type heat exchanger according to claim 1 is installed in the hollow thereof, a metallic conductive plate is attached on the grooved steel, and the snow melting on the roof covered with the tin plate apparatus.   The temperature control apparatus of the agricultural house which has the double pipe | tube type heat exchanger of Claim 1 in the support | pillar in the house, or underground. 2. The temperature control device according to claim 1, wherein the outer tube is flat and the dual-pipe heat exchanger that can be used for multiple purposes is installed inside or outside a tank, a tube or the like.

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