JPS5826502B2 - Piping equipment for hot water supply and heating - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a piping device for hot water supply and space heating.

Conventionally, this type of device has been provided with an air vent valve in the piping, and air bubbles generated in the hot water have been discharged through the air vent valve.

However, the above-mentioned air vent valve has a limit in how well it can discharge air bubbles that occur in hot water, and the air bubbles in the piping circulate together with the hot water, which not only causes an air lock phenomenon in the piping, but also causes air bubbles to get mixed in. There were problems such as noise and corrosion, and hot water circulation performance was significantly reduced during use.

The present invention completely solves the above-mentioned conventional problems, and effectively utilizes the air bubbles generated in the piping to effectively perform the function as an accumulator, thereby preventing air bubbles from entering the piping. The company provides a piping device for heating, and its characteristics are that a hot water supply pipe is provided above the boiler in an upwardly oriented manner, and a pipe for sending hot water is placed in the middle of the pipe. In addition to providing a pump, an air reservoir in which hot water bubbles are accumulated is provided near the upper end opening of the feed pipe, and an air vent valve is attached to the opening, and between the air reservoir and the pump. A hot water supply pipe and a heating pipe with a smaller diameter than the supply pipe are installed in the located supply pipe so that they can communicate with each other, and inside the communication position, there is a pipe to prevent air bubbles generated in the hot water from getting mixed into the hot water supply pipe and the heating pipe. This is due to the fact that each baffle plate was installed.

An embodiment of the present invention will be described in detail below with reference to the drawings.

1 is a boiler consisting of a burner 2 and a combustion chamber 3, and 4 is a hot water tank.

5 is a hot water supply pipe connected upward to the hot water tank 4;
The feed pipe 5 is formed to have a large diameter, is provided in an upright manner above the boiler 1, and is provided with a pump 6 for feeding hot water in the middle.

An air vent valve 7 is attached to the upper end opening of the feed pipe 5, and an air reservoir in the vicinity of the upper end opening of the feed pipe 5 is provided in which bubbles of hot water are accumulated.

Further, the hot water supply pipe 8 and the heating pipe 9 are formed to have a smaller diameter than the diameter of the feed pipe 5, and are provided so as to freely communicate with the feed pipe 5 located between the pump 6 and the air reservoir portion of the air vent valve 7. ing.

10 is a circulation tank, and this circulation tank 10 is connected to a bathtub (not shown) via a circulation pipe 11.

12 is a heating selection pipe, 13 is a water supply pipe, and 14 is a hot water supply pipe 8.
and a baffle plate provided at a position where the heating pipe 9 and the feed pipe 5 communicate with each other.

Since the present invention is constructed as described above, for example, as shown in the drawings, hot water heated by the boiler 1 ascends through the large-diameter feed pipe 5 via the pump 6, and flows through the small-diameter hot water pipe 8 and the heating It is sequentially circulated through tube 9.

In this case, since the hot water is heated, bubbles are generated, and these bubbles rise together with the hot water inside the feed pipe 5. However, in the present invention, the pump 6 is provided above the boiler 1, and the discharge side of the pump 6 is directed upward. Since there is no risk of air pockets forming on the suction side of the pump 6, the hot water can be reliably circulated without interfering with the operation of the pump 6 itself or degrading the hot water circulation performance.

In addition, since the feed pipe 5 is formed to have a larger diameter than the heating pipe 9 and the hot water supply pipe 8, the rising air bubbles can rise further up the feed pipe 5 without being mixed into the pipe 8゜9 and reach the air vent valve. 7, and other air bubbles are successively located in the feed pipe 5 located below the air vent valve 7 as shown in the drawing.

A baffle plate 14 is installed at the communication position between the hot water supply pipe 8, the heating pipe 9, and the feed pipe.
．． 14, the air bubbles rising inside the feed pipe 5 can be fed without being mixed into the hot water supply pipe 8 and the heating pipe 9 due to the action of the baffle plate 14 and the upward movement of the bubbles themselves. The air bubbles rise in the supply pipe 5 and are discharged from the air vent valve 7, and other air bubbles form an air pocket in the supply pipe 5 located below the air vent valve 7.

The air bubbles captured at the upper end of the feed pipe 5 create a buffering effect when the hot water expands, and function as an accumulator, completely absorbing the overflow caused by the expansion of the hot water in the piping system. Since no air is mixed in, the hot water can be circulated smoothly and reliably.

Moreover, the pressure adjustment width in the piping can be secured widely due to the accumulator action of the captured air bubbles, so that the pressure adjustment work can be carried out extremely easily, and the aerodynamic phenomenon in the piping can be completely prevented.

Therefore, according to the present invention, all the air bubbles generated in the hot water rise inside the large-diameter feed pipe 5 and are exhausted from the air vent valve 7, and the remaining air bubbles form an air reservoir in the upper part, and the baffle plate 14 , the air reservoir functions as an accumulator, and there is no risk of air bubbles getting into the pipes 8, 9, etc., so there is no aerodynamic phenomenon and hot water is smoothly fed in the circulation direction. In addition, it is possible to reliably prevent noise in the piping due to air bubbles being mixed in, and since chlorine gas etc. are discharged at the same time as air is removed, chlorine components etc. do not get mixed into the piping, so it is possible to prevent rust in the piping. It contributes to the effectiveness, there is no risk of damage even after long-term use, the above effects can be achieved despite the extremely simple structure, and the piping device of the present invention is also excellent in terms of workability. .

[Brief explanation of the drawing]

The drawings are explanatory diagrams showing one embodiment of the present invention. 1... Boiler, 5... Feed pipe, 6...
...Pump, 7...Air vent valve, 8...
...Hot water pipe, 9...Heating pipe, 14...
baffle board.

Claims (1)

[Claims] 1. A feed pipe for hot water is provided above the boiler in an upwardly erect manner, a pump for sending hot water is installed in the middle of the feed pipe, and a hot water supply pipe is provided in the vicinity of the upper end opening of the feed pipe. An air reservoir is provided in which air bubbles accumulate, and an air vent valve is attached to the opening, and a hot water supply pipe having a smaller diameter than the supply pipe is connected to the supply pipe located between the air reservoir and the pump. Piping for hot water supply and heating, characterized in that the heating pipes are provided so that they can freely communicate with each other, and a baffle plate is installed inside each of the communicating positions to prevent air bubbles generated in the hot water from entering the hot water supply pipe and the heating pipe. Device.