JPS5816576Y2 - hot water heater - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a hot water heater that performs heating by circulating hot water between a water boiling heat exchanger and a heating radiator.

Conventionally, in this type of heater, hot water is circulated through a circulation path d configured to circulate hot water to a heat exchanger and a radiator C via a circulation pump a, for example, as shown in the first diagram. Generally, a degassing chamber e is provided to remove air bubbles from the hot water by retaining the hot water, thereby preventing the pump a from idling due to air bubbles being mixed into the circulation pump a. As the hot water circulated within the system increases in temperature, a large amount of hot water is released from the degassing chamber e as steam together with degassed gas. The water inside the tank decreased relatively quickly, and it was troublesome to have to replenish it frequently.

The purpose of the present invention is to provide a heater that eliminates such inconveniences.The purpose of the present invention is to provide a heating system that circulates hot water through a circulation pump 1 to a water heating heat exchanger 2 and a radiator 3. 4
and a degassing chamber 5 for retaining hot water circulated through the yarn path 4 in the circulation system path 4 and removing air bubbles from the hot water; In the type having a water storage tank 7 to be connected, a deaeration pipe 8 is led out from the deaeration chamber 5 and communicated with the water storage tank 7, and the circulation pump 1 is connected to the circulation system path 4. 1 of hot water supplied from the discharge side to the radiator 3 via the heat exchanger 2
A side passage 9 is provided for returning the heat exchanger 3 from between the heat exchanger 3 and the radiator 3 to the suction side of the circulation pump 1 via the degassing chamber 5.

The circulation system path 4 includes, for example, a hot water supply path 10 that connects the discharge side of the circulation pump 1 to the inflow side of the radiator 3 via the heat exchanger 2, as shown in the second diagram, and a hot water supply path 10 that connects the outlet side of the radiator 3 to the inflow side of the radiator 3. A return path 11 is connected to the suction side of the circulation pump 1 via a chamber 5.

The water storage tank 7 has a water supply channel connected to the degassing chamber 5, which has relatively small pressure fluctuations, so that the hot water in the circulation system path 4 does not flow back into the water storage tank 7 due to pressure fluctuations when the circulation pump 1 starts or stops driving. In this case, the water storage tank 7 is arranged above the deaeration chamber 5 to prevent the high temperature hot water in the chamber 5 from entering the tank 7, and The water supply channel 6 is curved downward in a substantially U-shape to prevent convection between the chamber 5 and the tank 7, and to ensure that the temperature inside the tank 7 increases as the temperature inside the chamber 5 increases. It was made to be blocked by.

Note that the deaeration chamber 5 is provided with a baffle plate 12 inside which obstructs the flow of hot water toward the suction side of the circulation pump 1, and the baffle plate 12 efficiently removes air bubbles mixed into the hot water by retaining the hot water. It was made to be degassed.

In the drawing, 18 is the burner of the heat exchanger 2, and 14 is the water storage tank 7.
shows a water level detection switch linked to the float 15 in the
When the water level in the water storage tank 7 decreases, the switch 14 is closed and an alarm 16 disposed on the radiator 8 side is activated.

Next, to explain its operation, circulation pump 1 and burner 1
3 is activated to circulate water in the circulation system path 4, the amount of steam released from the deaeration chamber 5 to the deaeration pipe 8 increases as the water is heated, but this steam is not degassed. In addition to the cooling in the trachea 8, most of the water is condensed by cooling in the water storage tank 7, which is maintained at a relatively low temperature, and stored in the water storage tank 7, so that a decrease in the amount of water is prevented as much as possible, while depletion is Air chamber 5
The degassed gas is released into the atmosphere through the deaeration pipe 8 and the water storage tank 7, and does not interfere with the deaeration operation.

In this way, according to the present invention, the deaeration pipe 8 led out from the deaeration chamber 5 is communicated with the water storage tank 7, and the steam generated in the deaeration chamber 5 is passed through the deaeration pipe 8 to the water storage tank 7.
Since the water is introduced into the tank 7 and cooled and condensed in the tank 7, a decrease in the amount of water can be prevented as much as possible, and the above-mentioned disadvantages of the conventional method can be reliably solved. A side passage 9 connected to the suction side of the circulation pump 1 via the deaeration chamber 5 is provided in the intermediate part between the radiator 3 and the radiator 3. The water is stored in the degassing chamber 5 via the side passage 9, and then supplied to the heat exchanger 2 by the pump 1 via the side passage 9, so there is no waste of heat, and when the water flow to the radiator 3 is stopped, the water is stored in the degassing chamber 5. The hammer can be absorbed into the degassing chamber 5 via the side channel 9, which has an advantageous effect.

[Brief explanation of drawings]

FIG. 1 is a diagram showing a conventional example, and FIG. 2 is a diagram showing an example of implementing the present invention. 1... Circulation pump, 2... Heat exchanger,
3...Radiator, 4...Circulation system path, 5.
... Deaeration chamber, 6 ... Water supply channel, 7 ...
...Water storage tank, 8... Deaeration pipe.

Claims (1)

[Scope of utility model registration request] 1. Water heating heat exchanger 2 and radiator 3 via circulation pump 1
A degassing chamber 5 which constitutes a circulation system path 4 for circulating hot water and retains the hot water circulated through the yarn path 4 in the circulation system path 4 to remove air bubbles from the hot water; In a type in which a water storage tank 7 is connected to the system line 4 via a water supply channel 6, a deaeration pipe 8 is led out from the deaeration chamber 5 and communicated with the water storage tank 7, and the circulation To route 4,
A portion of the hot water supplied from the discharge side of the circulation pump 1 to the radiator 3 via the heat exchanger 2 is passed from between the heat exchanger 2 and the radiator 3 through the degassing chamber 5. A hot water heater comprising a side passage 9 returning to the suction side of the circulation pump 1. 2. disposing the water storage tank 7 above the deaeration chamber 5;
The degassing chamber 5 is formed by bending the water supply channel 6 downward into a substantially U-shape.
A hot water heater as set forth in claim 1 of the utility model registration claim, which is connected to. 3. The circulation system path 4 supplies a portion of the hot water to the radiator 8 from the discharge side of the circulation pump 1 via the heat exchanger 2 to an intermediate point between the heat exchanger 3 and the radiator 3. A hot water heater according to claim 1 or 2, which is provided with a side passage 9 for returning air from the air to the suction side of the circulation pump 1 via the degassing chamber 5.