JPS58210441A - Heat pipe type solar heat water heater - Google Patents

Abstract

PURPOSE:To make it possible to pack and transport the titled water heater in a simple manner and to make it easy to handle it at the time of assembly by a method wherein flexible tubes are used to connect a plurality of heat receiving pipes to a plurality of heat discharge pipes which are smaller in number than the heat receiving pipes by bending the flexible tubes toward the heat receiving pipes. CONSTITUTION:The heat pipe type solar heat water heater is provided with a water tank 1 and a heat pipe 2 and the water tank is provided with a cistern 5 having a ball tap 4. Further, the cistern 5 is connected with a feed water pipe 6 and a hot water pipe which latter is connected to the bottom of the cistern 5. In addition, a heat insulating material is placed on the upper surface of an outer casing 3 and the heat pipe 2 is placed on the heat insulating material and is then covered with glass 7. The water tank 1 is fixed to the upper end of the outer casing 3 and the heat pipe 2 is supported by a heat receiving fin. In this case, the lower ends of the heat receiving pipes are connected to one another with a lower header 9 while the upper ends thereof are connected to one another with an upper header 10 and the heat discharge pipes 12 are connected to the header 10 through the flexible tubes 11.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heat pipe type solar water heater.

Multiple heat extraction pipes A as shown in Figures 11 and 12
A conventional heat pipe type solar water heater in which KI heat radiation pipes B are connected to form a heat pipe, and the heat pipe 1B is laid at an angle from the side of the water storage tank C along the inner bottom. had the following drawbacks. That is, this water heater mainly consists of three parts: a water storage tank, a heat pipe, and an outer box, each of which is manufactured in separate processes and finally assembled into a heat pipe type solar water heater at an assembly factory. Therefore, these water storage tanks, heat pipes, and outer box parts need to be transported (moved) from their respective manufacturing plants to assembly plants. However, the heat pipe is heat dissipation pipe B.
Because it protrudes independently from the heat receiving pipe part A, it is necessary to take care when packaging it during transportation so that the connection part is not damaged by the weight of the heat dissipating pipe B, and if the packaging is not done in the longitudinal direction There is a problem with getting bigger.

The same was true for on-site assembly. Furthermore, the fact that one heat dissipation pipe B protrudes even during assembly has the disadvantage that handling is not easy.

Therefore, the purpose of this invention is to create a heat pipe type solar water heater that is easy to pack and transport and easy to handle during assembly. It is to provide.

A first embodiment of the present invention is shown in Figure 1''y3. That is, IVi water storage tank, 2 is a heat pipe, 3tj:
The water storage tank 1, which is an outer box, is provided with a sister 75 having a pole tap 4, piping for ff & water 'ft 6 is provided to the distiller 5, and a hot water supply pipe (not shown) is provided on the bottom side. The outer box 3 has a heat insulating material (not shown) laid on its upper surface, the heat pipe 2 placed thereon, and is further covered with glass 7, and a water storage tank l is attached to the upper end of the outer box 3. Heat pipe Z if supported by heat receiving finsia a,
The lower ends of the plurality of heat receiving pipes 8 are connected by a lower header 9,
The upper ends are connected by an upper header 10, and a 12 ft heat radiation pipe is connected to the end of the upper header 10 via a flexible tube 11i.

When packing and transporting, this heat pipe 2 is bent into a flexible tube 11'i (as shown in FIG. Insert from the side of the water tank l
The heat dissipation pipe 12 is disposed at the inner bottom with an inclination so that the tip thereof is upward.

This solar water heater is constructed by tilting the heat receiving pipe 8 so that the upper header lO of the heat pipe 2 is higher than the lower header 9, and exposing the heat receiving pipe 8 to the sun through the glass 7t. When sunlight is received through the entire glass 7, the temperature of the heat receiving fins 2a rises, and the temperature of the heat receiving pipe 8 of the heat pipe 2 which is connected to the heat receiving fins 2a and 2a increases, and the inside of the heat pipe 2 increases. The refrigerant evaporates in the heat receiving pipe 8. The evaporated refrigerant rises from the upper header 10 to the flexible pipe 11 (i-through υ) and to the low-pressure heat radiation pipe 12. In the heat radiation pipe 12, the refrigerant releases heat to the water (not shown) in the water storage tank l. This causes condensation (liquefaction). The liquefied refrigerant flows down the flexible tube 11 and returns to the heat receiving pipe 8. During this cycle of the refrigerant, the solar heat received by the heat receiving fins 2a and the heat receiving pipe 8 of the heat pipe 2 is transferred to the water storage tank l. Store it as hot water.This hot water is then used for hot water supply.

With this configuration, it is possible to bend the heat dissipation pipe 12 into the heat receiving pipe 81111 using the flexible tube 11, so that it can be packed as a heat pipe 2,
No more damaging the heat dissipation pipe and traditional connecting pipe when moving during transportation.

Furthermore, since the length of the heat pipe 2 can be shortened, handling becomes easier.

A second embodiment of the invention is shown in Figures m4 and 5.

That is, in this heat pipe type solar water heater, a piping protrusion 15 is formed at the lower end of the front plate 13 of the water storage tank la and continues to the inner bottom plate 14 of the water storage tank la, and one end 15a f and the other end of the piping projection 15 are formed. The radiator pipe 12 of the heat pipe 2 is inserted from one end 11115a of the heat pipe 15b and arranged in parallel inside the piping projection 15. Also, one end portion 1 of the piping protrusion 15
A hot water supply pipe 16 is provided next to the heat radiation pipe 12 of 5a.

Since the water storage tank 1a is normally constructed in a forward leaning position, the bottom of the inner bottom plate 14 in the water storage tank 1a is located at the piping protrusion 15.
and one end 15a thereof. This is the 12th
Compared to the conventional example shown in the figure, in the water storage tank C shown in Fig. 12, a large proportion of the hot water Q remains in the tank C without being discharged from the hot water supply pipe, resulting in large heat loss and troublesome cleaning. In contrast, this embodiment does not have these drawbacks. Further, by arranging the heat dissipation pipe 12 parallel to the piping projection 15 due to the inclined configuration of the piping projection 15, the slope necessary for easily flowing the refrigerant down can be obtained.

As an application example, this embodiment can also be applied to a heat pipe without the flexible tube 11.

A third embodiment of the invention is shown in FIGS. 6 to 8.

That is, this heat pipe type solar water heater is constructed of a heat radiation pipe 12a of the heat pipe 2' and a T-flexible tube, and a connection port 18 is provided at the end of the front side plate 17 from the water storage tank to connect the heat radiation pipe 12a. Insert it into the water storage tank lb while bending it as shown in Figure 7, and insert your hand through the inspection opening 19 of the water storage tank lb so that it is parallel to the front side plate 17 and tilted so that the tip part is 2 degrees higher. Perform positioning.

21 is a hot water supply pipe.

Generally, solar water heaters are installed on the roof of a house, so the tank shape is inevitably long horizontally and short vertically due to installation space issues. Therefore, the heat dissipation pipe 12a K
When using the same pipe diameter, the heat dissipation pipe 12a in the horizontal direction
The heat transfer area can be increased by inserting a In order to secure the same area in the vertical direction, the pipe diameter of the heat radiation pipe L must be made considerably thicker as shown in Figure 9 (aJ), or the number of heat radiation pipes L2 must be increased as shown in Figure 9 (b). It was necessary to increase

Therefore, in order to reduce the number of heat dissipation pipes (#1 compressor) and to make the pipe diameter as thin as possible, it is preferable to insert the pipes of the heat dissipation section in the lateral direction of the tank.

However, even in this case, the conventional heat dissipation pipe used a highly rigid pipe such as a steel pipe, so it was necessary to insert the heat dissipation pipe from the left or right side of the water storage tank. As a result, as shown in Figure 1O, the hot water supply pipe In has to be installed on the upper surface of the connection pipe, and as a result, it is located above the bottom of the water storage tank C, so when hot water is taken out during hot water supply, There was a problem that a considerable amount of hot water remained. Leaving hot water in this manner is a thermal loss, and it is also undesirable for water to remain when cleaning the water storage tank.

In addition, since the joint part X of the heat pipe A and the water storage tank C protrudes from the outer dimensions in the width direction of the heat receiving part fin a and the water storage tank C, there is a loss of space M of 1M2 as shown in Fig. 10, and the exterior becomes large. This was a waste of time.

In this respect, this embodiment can solve all of the above problems by using flexible heat radiation pipes 12a and 12f, and also has the effects of the first embodiment. That is, the hot water pipe 21 can be provided at the bottom of the side of the water storage tank 1b, and therefore the hot water in the water storage tank 1b can be taken out from the hot water pipe 21 without leaving any residue.

In addition, the joint between the heat pipe 2' and the water storage tank 1b does not protrude beyond the widthwise outer dimensions of the heat receiving fin 2a and the water storage tank, eliminating the need to create wasted space for the joint, and making the exterior more compact. can. Furthermore, since the heat dissipation pipe 12a is bendable, the heat pipe 2' can be bent during transportation to reduce the size of packaging and facilitate handling.

As described above, in the heat pipe type solar water heater of the present invention, flexible tubes are provided at the joints of a smaller number of heat radiating pipes to a plurality of heat receiving pipes so that they can be bent into heat receiving pipes. This has the advantage of being easy to pack, transport, and handle during assembly.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway perspective view of the first embodiment of the present invention, Fig. 2 is a plan view of the main part thereof, Fig. 3 is a plan view of the heat dissipation pipe in a bent state during packaging, and Fig. 4 is FIG. 5 is a front view of the main part of the second embodiment, FIG. 6 is a plan view of the main part of the third embodiment, FIG. 7 is a perspective view of the heat dissipation pipe inserted, and FIG. The figure is a partial perspective view of the same, FIG. 9 is a partial plan view of the conventional example, FIG. 1O is a plan view of another conventional example, FIG. be. i, ia+lb...water storage tank, 2.2'...heat pipe, 8...heat receiving pipe, 11...flexible pipe, 12.12a...heat radiation pipe, 15...piping protrusion, 16...Hot water pipe

Claims (3)

[Claims] (1) A heat generating system in which a smaller number of heat dissipation pipes are connected to a plurality of heat receiving pipes, and a flexible part is provided at the connection part of the heat dissipating pipes so that the heat dissipating pipes can be bent toward the heat receiving pipe side. A heat pipe type solar water heater comprising a pipe and a water storage tank into which a heat radiation pipe of the heat pipe is inserted. (2) The water storage tank has a piping protrusion formed on the entire length of the upper end of the front plate facing the heat pipe so as to be continuous with the inner bottom of the tank, and the piping protrusion is lower on the inner bottom of the tank. The piping projection is sloped so that one end thereof is lower than the other end, and the heat dissipation pipe is inserted into the piping projection from the one end of the piping projection. Claim No. 1, in which a hot water supply pipe is provided at the one end of the piping protrusion
The heat pipe type solar water heater described in Section 1. (3) The 1Itt heat dissipation pipe is almost entirely composed of a flexible pipe, and is inserted from the front side plate of the water storage tank and arranged parallel to the front side plate inside the water storage tank. The described heat pipe solar water heater.