JPH02195092A - Piping tube - Google Patents

Abstract

PURPOSE:To obtain a piping tube for which any auxiliary facilities such as expansion tank, etc. are not needed by making a tube of a material composed of EPT through extrusion and using it for a heat release piping. CONSTITUTION:A material composed of EPT is formed through extrusion into a tube and the tube is used for centralized heat release pipes 1, 1a, etc. When heat is released from the centralized heat release pipes 1, 1a, etc. after the top surface of roofs 10 and 10a is covered with some snow, heat for melting the snow is prevented from being released into the atmosphere by fallen snow, the centralized heat release pipes 1, 1a, etc. is expanded in diameter through expanding action of the centralized heat release pipes 1, 1a, etc. according to the expansion of the heated heating medium to be circulated through the piping to increase their heat release area, and more effective snow melting can be made through the increase in the amount of heat releasing and adiabatic action of the fallen snow. The amount of heat releasing can be increased or decreased by adjusting the flow of the heating medium and it is not necessary to raise the heating temperature of the heating medium to the capacity limit of the boiler 7 by the boiler 7. Thus, the piping tube can be used forever.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] The present invention relates to a piping tube used as heat collection and radiation piping in snow melting equipment, solar systems, air conditioning systems, and the like.

Traditionally, heat dissipation piping is installed on the top or back of the roof as a snow melting device, heat collection piping is installed inside a solar collector installed on the roof of a solar system, and inside a floor heating unit. Internal heat dissipation piping, etc. has a constant diameter, so when circulating a heat medium, if the heat medium gets heated and expands, the pressure inside the pipe cannot be kept constant. equipment, solar systems, floor heating, etc. Therefore, in the equipment and systems equipped with the heat radiation piping and heat collection piping described above, it is necessary to connect extra piping systems to the expansion tank, equipment for the expansion tank, etc. It has the disadvantage of requiring

In addition, since the diameter of such piping, especially heat radiation piping, is constant, the surface area per unit of piping is constant, that is, the heat radiating area is constant, so in order to increase the amount of heat radiation, it is necessary to increase the heat circulating through the heat radiation piping. The medium has to be further heated, which has the disadvantage of high cost. Even when the liquid heat medium circulating through the heat transfer medium is heated and expands, the heat collection and radiation piping expands in accordance with the expansion, increasing the heat collection and radiation area and improving heat collection efficiency or heat radiation efficiency. Since the tube expands in accordance with the expansion of the heat transfer liquid, the present invention aims to provide a piping tube that does not require ancillary equipment such as an expansion tank by keeping the pressure fluctuation inside the tube constant due to the expansion of the heat transfer liquid.

[Structure of the invention]

In view of the above, the present invention provides a piping tube in which a material made of EPT (EPDM) is extruded and formed into a tube, and the tube is used as a heat collection/dissipation piping. This is an attempt to eliminate the shortcomings.

According to the present invention, when the heat medium circulating through the heat collection/dissipation piping is heated and expands, the heat collection/dissipation pipe expands in accordance with the expansion, thereby increasing the heat collection or heat radiation area. f
This increases the amount of i- or heat dissipation.

Since the heat collection and radiation piping expands in accordance with the expansion of the liquid heat medium, the pressure inside the piping is maintained constant.

An embodiment of the present invention will be described below based on the drawings. 1.1a... is a heat collection/dissipation pipe;
1a... is a compressed material in which EPT (EPDM), which has excellent heat resistance, pressure resistance, weather resistance, and flexibility, is mixed with powder from the tip of a hollow core metal 4 inside the mouthpiece 3 of an extrusion molding machine 2. This is done by extrusion molding, such as a method in which air is blown out to form a hollow shape, and at the same time, powder is applied to the inner surface of the hollow part 5 to prevent the hollow part 5 from sticking and soaking. It's a tube.

Then, the extrusion molded heat collection and radiation piping 1, La...
- has an expansion effect corresponding to the expansion of the heated heat medium circulating inside the pipe.

The snow melting, air conditioning, and hot water supply system that uses the heat collection and radiation piping 1, Ia... will be explained below. , and a refrigerator 9.

The heat collecting and dissipating pipes 1, la... are shaped and formed to have a smaller diameter than the wall thickness of the roof tiles 11, lla... on the roof 110.10a surface, and are roof tiles installed on the roofing surface 0.10a. 11.
The head side 12a of 11a... is placed in a zigzag pattern across the lateral direction of the roof 10.10a, which is located in the front of the roof tile 11, Ila... and substantially coincides with the roofing shape of the roof tiles 11, Ila... Also, the length of one system of heat collection and radiation piping 1.1a... is 40
A feed header 14.14a arranged at the side end 13.13a in the flow direction of the feeder 110.10a, which is made within m
the starting end 15.15a... of the return header 16.1
The terminal ends 17, 17a, . . . are connected to 6a.

That is, one system of heat collection and radiation piping 1.1a... is a starting end row arranged across the M root 10.10a in the lateral direction from the starting end 15.15a... connected to the sending heel 14.14a. 1
8.18a... at a predetermined bending position 19.19a...
The terminal row 20.20a... is the starting row】8.18a...
The terminal ends 20.20a are connected to the returning headers 16.16a so that they are arranged on the ridge side 21.21a.

22.22a... are supporting metal fittings for fixing the heat collection and radiation piping 1.1a... arranged on the roof 10.10a surface to the roof 110.10a surface, and the supporting metal fittings 22.22
A... is a support portion 23.a made of a bent metal plate and one end of which is covered with a heat collection/dissipation pipe l5la... from above.
23a..., and a hook-shaped hooking part 25 that is hooked to the bottom side 24, 24a... of the roof tiles 11, lla... at the other end.
．． 25a... are formed.

Then, the support fittings 22.22a... are attached to the roof tiles 11.1.
1a... head side 12.12a... and butt side 24.24
The position is firmly held by being held between the overlapping portions 26, 26a, and the like.

In addition, in the case where the roof 10.10a is a tiled roof 27 other than a tiled roof, the hooks 28.28a, which are made by bending a band-shaped metal plate into a substantially U-shape, are used. One end is placed on the upper surface of a long strip-shaped metal plate at a predetermined distance, and
The supporting metal fittings 22.22a... are fixed to the tile rods 29.29a... with fixing devices 30.30a... or welded or screwed. It is fixed with a stopper etc., and the latching tool 28.28a.
Heat collection and radiation piping 1.1a is installed in the open part 31.31a of...
... and the hanging tool 28.28a...
・Hold by bending the other end.

The feed header 14.14a and the return header 16.16a are connected to the feed pipe 33 via solenoid valves 32.32a and 32b, respectively.
, and return piping 34, and the feed piping 33 and return piping 34 are connected to a piping circuit 36 installed inside the water tank 35 of the heat exchanger 6 to form a series of piping routes.

In addition, a circulation pump 38 is installed near the eaves 37 of the N root 10 of the feed pipe 33, while a return pipe 34 and a piping circuit 36 installed in the water tank 35 of the heat exchanger 6 installed on the ground are installed. A circulation pump 38a interposed therebetween is installed near the heat exchanger 6.

The heat exchanger 6 is connected from the water tank 35 to the boiler 7 by a delivery pipe 40 with a circulation pump 39 interposed therein, and is connected to the heat exchanger 6 by a communication pipe 42 via a chatuki valve 41. Water heated by an installed heater (not shown) is supplied to the heat exchanger 6, and the boiler 7 is a hot water pipe that is led to a hot water supply location (not shown) such as a bathroom, kitchen, washroom, etc. 43 is connected.

Further, the heat exchanger 6 is connected from the water tank 35 to the refrigeration unit 19 through a delivery pipe 40a, and from the refrigeration unit Ia9 to the chatki valve 4.
It is connected to the heat exchanger 6 by a communication pipe 42a via 1a, and supplies cooling water to the heat exchanger 6.

The heat storage tank 8 is a branch pipe 44 branched from the return pipe 34.
is connected to a piping circuit 45 installed in the heat storage tank 8 via a solenoid valve 32c, and is also connected to a branch pipe 44a that is continuously branched from the feed piping 33 from the piping circuit 45.

46 is an air conditioner installed in a predetermined room, and the air conditioner 46 is connected to the feed pipe 33 connected to the heat exchanger 6.
The feed pipe 47 branched from the return pipe 34 is connected to a return pipe 48 branched from the return pipe 34 and equipped with a circulation pump 38b and a check valve 41b, and the return pipe 4
8 is a floor heating panel 49 which is branched and installed in a predetermined room.
．． Heat radiation distribution installed in 49a...! (not shown) via a control valve 50, while the terminal end of the heat radiation pipe is connected to the return pipe 48.

The water supply source for the boiler 7 and the heat exchanger 6 is a heat storage tank 8 connected to a water supply pipe 51 from the water supply source, and water is supplied from the heat storage tank 8 to the boiler 7 connected by a delivery pipe 52. Water is supplied from 7 onwards.

The heat medium is non-freezing, non-flammable, and has high thermal efficiency, such as water mixed with antifreeze, ethylene glycol, methylene chloride, etc.
... can also be used as the piping route used in the above-mentioned snow melting, air conditioning, and hot water supply systems, and as heat dissipation piping installed inside the floor heating panels 49, 49a, etc.

Next, to explain the function of the piping tube according to the present invention, the heat medium circulates between the heat collection/dissipation pipes 1.1a... and the heat exchanger 6 through operations during snow melting and snow melting of the air conditioning/heating/hot water supply system. do.

The water heated by the power I'I heater in the boiler 7 indirectly heats the heat medium passing through the piping circuit 36 installed in the heat exchanger 6 via the heated water, and the heat medium is circulated through the heat collection and radiation pipes 1.1a by the circulation pumps 38, 38a, and the snow S is melted by heat radiation from the heat collection and radiation pipes 1.1a.

At this time, although the heated heat medium expands, the heat collection and radiation piping 1
．． Due to the expansion action of 1a..., the heat collection and radiation pipes 1.1a... expand and expand in diameter in response to the expansion of the heating medium, increasing their heat radiation area, and the snow S that has accumulated to a certain extent absorbs heat for snow melting. This insulates it from the outside air.

Furthermore, to explain this snow melting state, since the expanded heat collecting and dissipating pipes 1.1a are arranged horizontally across the roof 10.10a, the initial snow melting state is as shown in Figure 5. The snow S is melted in a tunnel shape along the heat collection and radiation pipes 1.1a, and as the snow melts progress, the roof 1 is melted as shown in Figure 6.
0, ] Oa in the lateral direction to melt snow.

In addition, due to its expansion characteristics, the heat collection and radiation piping 1.1a...
It absorbs the expansion and contraction when the circulating heat medium is heated and then cooled, thereby maintaining a uniform square shape within the heat collection and radiation pipes 1.1a.

Next, for indoor heating and cooling, the heat medium is circulated between the heat exchanger 6 and the air conditioner 46 by the circulation pump 38b.

In the case of heating, the heat medium heated by the boiler 7 from the heat exchanger 6 is introduced through the feed pipe 47 to the air conditioner 46 installed in a predetermined room, thereby supplying warm air into the room. It is.

Then, the heat medium from which heat has been removed goes back through the return pipe 48 and is guided to the heat exchanger mH6.

In the case of cooling, the circulation path is the same as in the case of heating, but by the operation of the cooling **9, cooling water is introduced into the heat exchanger 6, cooling the heat medium and supplying the air conditioner 46. In addition, in the case of floor heating, the control valve 50 is opened, and the heat medium heated by the boiler 7 from the heat exchanger 6 passes through the feed basin 47 to the floor heating panel 4.
9. Heat collection and radiation piping 1.1a installed inside 49a...
The heat exchanger B6 circulates through the heat dissipation pipe, and is guided to the heat exchanger B6 through the return pipe 48.

At this time, by adjusting the flow rate of the heat medium with the control valve 50, the heat radiation area of the heat radiation pipes in the floor heating panels 49, 49a, etc. is increased or decreased, and the amount of heat radiation is adjusted.

Next, in the case where the heat collection and radiation piping 1.1a... is for the purpose of collecting heat, the heat collection and radiation piping 1.1a... arranged on the roof l110.10a surface and the heat storage tank 8. A heat medium circulates between the two.

At this time, the heat collection and radiation pipes 1.1a... are heated by the radiant heat of the sun, and the heated roof tiles 11, lla...
Due to the conduction heat of..., the heat medium circulating in the heat collection and radiation piping 1.1a... absorbs heat, and the heat medium is heated, and while circulating in the heat collection and radiation pipe 1.1a... The heat collection and radiation piping 1.1a... expands to increase its heat collection area,
The heat medium increases the amount of heat collected and is introduced into the heat storage tank 8,
The water is heated via the piping circuit 45.1. The hot water is supplied from the delivery pipe 52 through the boiler 7 and from the water supply pipe 51 to the hot water supply position.

In addition, if the temperature of the hot water passing through the delivery pipe 52 from the heat storage tank 8 is lower than a predetermined temperature, it is set to be supplementally heated by the boiler 7, so that the predetermined temperature is maintained. be.

〔Effect of the invention〕

In short, in the present invention, a material made of EPT (EPDM) is formed into a tube by extrusion, and the tube is used as the heat collection and radiation piping 1.1a.
After a certain amount of snow S has accumulated on the surface of 0.10a, when the heat collecting and dissipating pipes 1.1a... are made to radiate heat, the snow S that has accumulated to a certain extent insulates the heat for snow melting from the outside air, and the heat collecting and dissipating pipes 1, The heat collection and radiation piping 1.1a... responds to the expansion of the heat medium due to the expansion action of the heat collection and radiation piping 1, Ia...
expands and expands in diameter, increasing its heat dissipation area, and due to this increase in heat dissipation and the insulating effect of the snow S, effective snow melting is achieved. Therefore, by adjusting the flow rate of the heating medium, the amount of P dissipated can be reduced. It is possible to adjust the increase or decrease of the temperature, and there is no need to raise the heating temperature of the heating medium to the boiler's capacity limit, so it can be used permanently.

Further, the same effect can be obtained even when the heat collection and radiation pipes 1.1a installed inside the floor heating panels 49, 49a, . . . are used as heat radiation pipes.

In addition, due to its expansion characteristics, the heat collection and radiation piping 1.1a...
In order to absorb the expansion and contraction when the circulating heat medium is heated and then cooled, and to maintain a uniform pressure inside the heat collection and radiation piping 1.1a..., the expansion of the heat medium liquid is By keeping the pressure fluctuation inside the tube constant,
It does not require an expansion tank, and eliminates the need for extra piping connections to the expansion tank and expansion tank equipment.
Furthermore, the expansion and diameter expansion of the heat collection and radiation piping 1.1a prevents problems such as air accumulation and liquid leakage, so there is no need for maintenance after the heat collection and radiation piping 1.1a is installed. .

In addition, the heat collection and radiation pipes 1, Ia... are made of EPT (EPDM), which has excellent heat resistance, pressure resistance, and weather resistance, so they do not deteriorate due to environmental changes, so the heat collection pipes 1.1a...
... can be placed on the roof 10.10a, and as a result, the heat collection and radiation piping 1.1a ... can directly radiate heat to melt the snow, and the heat can be radiated without taking time to start snow melting. This allows the temperature to rise rapidly.

Furthermore, the expanded heat collection and radiation pipes 1.1a... are connected to the roof 10.
10a, the snow S is initially melted in a tunnel shape along the heat collection/dissipation pipes 1.1a, as shown in Figure 5, and the snow melting progresses. Accordingly, as shown in FIG. 6, the snow melts laterally across the roof 10.10a, and eventually the lightning is completely extinguished.

However, even if the snow melting operation is stopped in the state shown in FIG.
If the snow is falling horizontally, it will not slide down from the roof 10.10a, so the heat collection and radiation piping
．． There is no need to radiate heat from 1a..., and the cost for snow melting can be reduced.

In addition, when the heat collection and radiation piping 1.1a... is intended to collect heat, the heat medium circulating inside the heat collection and radiation piping 1.1a... absorbs heat, and the heat medium During the heating and circulation of the heat collection and radiation pipes 1.1a...
... expands and increases its heat collecting area, and the heat medium increases the amount of heat collected, so that when hot water is used, the auxiliary heating by the boiler 7 can be reduced, and the cost for this can be reduced.

In addition, since the heat collection and radiation piping 1.1a... has good flexibility,
It can be easily installed in a zigzag manner on the roof 10.10a, and when used in other piping systems, it is easy to install and has great practical effects, such as reducing engineering costs. It is.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a diagram showing a molded part of a piping tube according to the present invention, FIG. 2 is a cross-sectional view showing the same expanded state, and FIGS. Figure 4 is a piping route diagram of a snow melting, air conditioning, and hot water supply system using the present invention;
FIG. 5 is a diagram showing the arrangement state of the heat collection and radiation pipes and the initial snow melting state, FIG. 6 is a perspective view showing the snow melting state, and FIG. 7 is a diagram showing another embodiment. 1.1a...Heat collection/dissipation piping or above, Ken Hitori Figure 1 Figure 2 Procedural amendment (method) % formula % Regarding the above Ex.

Claims (1)

[Claims] A piping tube characterized in that it is made of a material made of EPT (EPDM) and formed into a tube by extrusion, and the tube is used as a heat collection and radiation piping.