JPS6013010Y2 - Connection structure at heat medium inlet and outlet of solar collector - Google Patents

Description

[Detailed description of the invention] This invention relates to the improvement of a so-called solar collector that converts sunlight into heat.In particular, the connection structure of the inflow and outflow parts of the heat medium has been improved, and the insulation performance of the connection parts has been improved. , the installation is intended to facilitate operation, etc.

As shown in FIG. 1, the solar collector according to the present invention has a large number of heat collecting plates 2, 2.・
... are arranged in a plane, and the heat collecting plate is heated by sunlight that is irradiated onto the heat collecting plate through a transparent plate 3 made of a glass plate or the like that covers the upper surface of the main body casing 7, and this heat collecting plate 3'
By flowing the heat medium through the flow pipes 4 fixed in contact with the heat collecting plate 2, the heat accumulated in the heat collecting plate 2 is transferred to the heat medium, and the heated heat medium is passed through the flow pipes 4, 4, . It is used by taking it out through a header pipe 5 connected to...

Accordingly, such header pipes 5 are provided at both the inlet and outlet of the heat medium of the solar collector, and protrude from the side surface of the main body casing 1 for connection with external piping. External piping 8 is connected by a piping joint 7 or the like having a threaded portion.

7. In order to prevent heat leakage from such a protruding part 6, it is necessary to wrap a thick cylindrical heat insulating material 9 made of glass wool or the like. If there is a protruding wall etc. that interferes with the insulation material 9,
The heat insulating material cannot be tightly wrapped around the protruding pipe 6, resulting in a decrease in heat insulation efficiency.

In addition, the header pipe 5 and external piping 8 are connected by the joint 7.
When connecting the two, it is necessary to rotate and tighten the joint 7 with a large torque, but if such torque is applied directly to the header pipe 5, bending stress will be applied to the connection between the header pipe and the flow pipe 4. There is a risk of damage to these connections.

Therefore, the purpose of the present invention is to eliminate the drawbacks in the heat medium inflow and outflow portions of such solar collectors, and the main body casing has a protruding wall on its side surface. In the connection structure at the heat medium inflow and outflow section of a solar collector in which an adapter is attached and the adapter connects external piping and a header pipe, the square tube part of the adapter is fitted into the adapter protrusion of the main body casing. A box body with a square hole bored in the side surface is attached, and the side face where the square tube part is bored is made into a plane that is substantially parallel to the side surface of the protruding wall on the side surface of the main body casing, and a heat insulating material is installed inside the box body. The present invention provides a connection structure at a heat medium inflow and outflow portion of a solar collector, which is characterized by a filled point.

Next, an embodiment embodying the present invention will be described in detail with reference to the accompanying drawings starting from FIG.

Here, FIG. 2 is a side view of a connection structure that is an embodiment of the present invention, FIG. 3 is a view taken in the direction of arrow A in FIG. 2, and FIG.
It is a perspective view showing the structure of the main body casing side part of the solar collector provided with the connection structure based on the same Example.

In these figures, 10 is a main body casing constituting the outer wall of the solar collector, and two bolts 14 and 14 are attached to a mounting plate 13 slidably inserted into a groove 12 with a C-shaped cross section provided on the side surface 11 of the main casing. 1. By fixing the connecting member 15, which is attached to the bolts 14 and 14 and having an angular cross-section, to the frame 16 with the hook bolt 17. The solar collector itself is fixed to a mount 16.

A bead 18 attached to a bead mounting groove 17 with a C-shaped cross section provided at the upper end of the main body casing is disposed around the entire circumference of the solar collector, and on the bead,
A transmitting plate 19 made of a glass plate or the like is arranged to completely cover the upper surface of the heat collecting plate 20.

A transparent plate holding frame 22 that surrounds the outer periphery of the transparent plate 19 is mounted on a support plate 21 that protrudes outward from the upper side of the main body casing 10. By tightening the screws 23 that fix the transmitting plate 22, the transmitting plate 19 is pressed onto the bead 18 by the edge 24 of the transmitting plate holding frame 22, and the space 25 inside the solar collector is isolated from the outside air.

As is clear from the above explanation, the support plate 21 and the transparent plate holding frame 19 are the parts that protrude from the side wall of the main body casing 10, and a heat insulating material should be wrapped around the end of the header pipe 5 that protrudes from the main body casing. If so, it is impossible to tightly wrap the heat insulating material due to interference with the protrusion 19.21.

Therefore, in the present invention, as shown in FIGS. 2 and 3, a box body 27 having a planar upper surface 26 is fixed to the skirt portion 29 of the transmission plate holding frame 22 with screws 28, and the box body 27 is inserted into the box body 27. A heat insulating material 31 is filled around the header pipe 5 and the adapter 30 screwed onto the tip thereof.

The adapter 30 screwed onto the end of the header pipe has a rectangular tube portion 32 having a hexagonal tube shape in the middle, and the box body 27
The square tube part 3 is inserted into the hexagonal square hole 33 bored in the upper surface 26 of the
Insert 2.

A threaded portion 34 is carved into the tip of the adapter 30 to form a connecting portion with the joint 7 described above.

In such a connection structure, in order to connect external piping such as a flexible hose or a header pipe of an adjacent solar collector to the adapter 30, the joint 7 with the end of the external piping attached is screwed onto the threaded part 34. It is necessary to tighten the joint, but since the square tube part 32 of the adapter 30 is inserted into the square hole 33 of box #27, and the square hole 33 serves to prevent the adapter 3゛0 from rotating, tighten the joint. However, the torque is not transmitted to the header pipe 5.

Furthermore, when the connection with the external piping is completed, a heat insulating material 35 is wrapped around the connection part in a thick cylindrical shape to prevent heat leakage, but since the upper surface 26 of the box body 27 is flat, The heat insulating material 35 can be tightly wrapped around this portion, improving heat retention.

In this case, in order to bring the heat insulating material 35 into close contact with the skirt portion 29 to improve heat retention, the side surfaces of the protruding walls of the skirt portion 2'9, etc. and the upper surface 26 of the box body 27 must be placed at approximately the same level. It is desirable to determine the height 1 of the box in such a manner.

Furthermore, the header pipe insertion part 36 of the main body casing, the square hole 33,
As described above, the present invention has a sealing material embedded in each of the contact parts 37 with the main casing surface of the 27 boxes to prevent moisture from flowing into the heat insulating material 31 and into the main casing 10. The header of the solar collector, where the body casing has protruding walls on its sides, at the end of the tube,
In the connection structure at the heat medium inflow/outflow part of a solar collector, in which a threaded adapter having a square tube part is attached and the adapter connects an external pipe and a header pipe, the adapter is attached to the protruding part of the adapter of the main body casing. A box body" having a square hole bored in the side surface into which the square tube part is inserted is attached, and the side surface through which the square tube part is bored is made to be a plane substantially on the same level as the side surface of the protruding wall on the side surface of the main body casing, and Since this is a connection structure at the heat medium inflow and outflow part of the solar collector, which is characterized by filling the inside of the body with a heat insulating material, the tightening torque of the joint is not directly transmitted to the header pipe, and the connection between the adapter and the header pipe is This prevents the header pipe from loosening or the connection between the header pipe and the flow pipe from being damaged, and the header pipe and its connection with external piping can be tightly covered with heat insulating material. To obtain a solar collector that prevents heat from escaping from the parts and has good heat collection efficiency.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a connection part of a conventional solar collector with external piping, FIG. 2 is a side view of a connection structure that is an embodiment of the present invention, and FIG. 3 is an A in FIG. 2. The arrow view and FIG. 4 are perspective views showing the structure of the side part of the main casing of the solar collector provided with the connection structure according to the same embodiment. Explanation of symbols, 10... Main body casing, 11.
... Side surface, 21, 22, 29 ... Protruding wall, 5 ... Header pipe, 32 ... Square tube part,
30...adapter, 33...square hole, 2
7... Box body, 26... Side (top surface)
, 31... Insulation material.

Claims (1)

[Scope of utility model registration request] A solar collector whose main body casing has a protruding wall on its side surface has a threaded adapter having a square tubular part attached to the end of the header pipe, and the adapter connects the external piping and the header pipe. In the connection structure at the heat medium inflow and outflow section, a box body having a square hole drilled in the side surface into which the square tube section of the adapter is inserted is attached to the adapter protrusion of the main body casing, and the side surface bored in the square tube section is attached to the adapter protrusion section of the main body casing. 1. A connection structure at a heat medium inflow and outflow section of a solar collector, characterized in that the plane is substantially on the same level as the side surface of a protruding wall on the side surface of a main body casing, and the inside of the box body is filled with a heat insulating material.