JPS5816094B2 - hot water heating system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention stores make-up water in a state open to the atmosphere and fills the heating circuit with water by operating a circulation pump, without using a pressurized water supply device or a direct connection system to water pipes. In addition to separating and removing the air that separates from the circulating water in the circuit during operation,
The hot water expansion is replaced by the internal pressure adjustment control unit in a make-up water reservoir outside the circuit in preparation for the next refill. (a) Water supply action, (b) Air separation and discharge action, (e) Hot water expansion amount processing It is an object of the present invention to provide a heating device which has practical effects and is capable of forming a closed circulation circuit.

Although individual devices such as sealed expansion tanks and air separators have already been put into practical use, special water supply devices, safety valves, etc. are required, and there is no device that achieves the purpose of the present invention.

Next, embodiments of the present invention will be described with reference to the drawings.

In FIG.
An inlet pipe 5 and an outlet pipe 6 for hot water circulation are arranged in one lower container 4, and a mechanism part 7 for air venting and no water supply action is provided on the partition wall 2, and a valve 9 is held by a spring 8 and the lower part is divided into two parts. Equipped with a control section 10 that adjusts the internal pressure of the container 4, the upper container 3
Replenishment water will be stored in the tank and opened to the atmosphere.

The operating operation will be explained next.

Water is supplied to the upper container 3 through a ball tap 11, and the heating circuit is filled with water from the water supply/air vent port 13 of the mechanism section 7 by suctioning with the circulation pump 12.

At this time, the float 14 moves downward around the rotating shaft 15 to open the water supply/air vent port 13 because the weight 15 and the internal pressure are in a negative pressure state.

If the heating circuit is filled with water, the water supply and air vent 13
is closed, the heat source is operated, and steady heating operation is started.

As the temperature rises, air dissolved in water separates from the water and becomes bubbles.

These bubbles cause various problems such as air locks in the pump, fluid noise in the circulation circuit, and reduced efficiency of the radiator. Because of the rapid expansion, the flow rate decreases, the bubbles separate, and accumulate in the air vent mechanism section 7.

When a certain amount of air bubbles accumulates, the buoyant force of the float 14 closes the seal gasket 16 attached to the air vent 13, but the gravity of the float 14 and weight 15 increases.
Open the air vent 13.

The air bubbles will therefore be expelled into the upper container 3 and at the same time create a water supply for that volume.

Further, when the internal pressure reaches a certain arbitrarily set pressure as the temperature rises, the internal pressure adjustment control section 10 discharges the expanded portion of the hot water into the upper container 3.

The above is the operation explained based on FIG.

Note that 17 is a container lid, and 18 is an overflow pipe.

19 is a heat exchanger for hot water supply. In Fig. 2, this device 2
It is believed that the location of the device in the heating circuit of 0 becomes even clearer.

This device 20 is installed between a hot water feed pipe 22 from a heat source 21 and a circulation pump 120, and hot water is circulated to the heat source via radiators 23, 24 and a return pipe 25.

Next, in the one shown in FIG. 3, the heat source itself is divided into an upper tank 27 and a lower tank 28 by a partition wall 29, and a mechanism section 30 that functions to vent air and supply water and a circuit internal pressure adjustment control section 31 are attached to this partition section. The lower tank 28 is equipped with a heat generator 32.

Circulation pump 33, feed pipe 34, radiator 35, return pipe 36
The hot water is circulated through the lower heat source tank 28 through.

37 is a water supply port, and 26 is an overflow pipe.

As described above, according to the present invention, the following excellent effects can be expected.

(2) It is an epoch-making device that can handle functions such as water supply, air separation and discharge, and hot water expansion treatment, which each require dedicated equipment, with one simple device.

■The amount of expansion can be handled without discharging the hot water in the 8 circuits to the outside of the circuit, and there is no dilution of rust preventives, antifreeze, etc.

■Dissolved air bubbles in the zero circuit can be completely separated and removed, preventing pump air locks, fluid noise in the circulation circuit, and reduction in radiator efficiency.

■ All water supply and circulation functions can be performed using only the circulation pump.

(2) Even when the water pump is on the hour, the internal pressure adjustment control section prevents the hot water in the circuit from leaking out even if the air vent cock of the radiator installed above the device is opened.

(2) Due to the effect of the rapidly expanding section, not only the noise caused by the air in the fluid, but also the compressional wave vibration noise in the fluid can be reduced.

(2) The hot water circulation circuit is sealed and dissolved air is removed, which prevents corrosion of circuit components and piping.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention, FIG. 2 is a system diagram when it is incorporated into a heating circuit, and FIG. 3 is a system diagram in another embodiment. 2... Bulkhead, 3... Upper container, 4...
-...Lower container, 5...Hot water inlet pipe, 6...
... Outlet pipe, 7, 30 ... Mechanism that functions as air vent and water supply, 10, 31 ... Pressure adjustment control section, 19 ... Heat exchange for hot water supply vessel.

Claims (1)

[Scope of Claims] 1. Hot water inlet and outlet pipes of a hot water circulation circuit are arranged in a lower container divided by a partition wall, and a pressure adjustment control unit for internal pressure of the lower container is provided in the partition wall, and a float is used to control the lower container. A mechanism unit having a valve configuration that releases air to the upper container and simultaneously supplies water from the upper container, and furthermore, a device that stores make-up water in the upper container and opens it to the atmosphere is installed in the hot water circulation circuit. A hot water heating system configured to be connected. 2. The hot water heating device according to claim 1, wherein a heat exchanger for hot water supply is installed inside the lower container. 3. The hot water heating device according to claim 1 or 2, wherein the lower container itself is configured as a hot water generation source.