JPH0129453Y2 - - Google Patents

Description

[Detailed explanation of the invention] <Industrial application field> This invention can be used in general households to utilize exhaust heat in addition to the primary use of radiant heat and reflected heat from indoor exhaust combustion devices such as portable stoves, or primary heating. This invention relates to an automatic control device for a heating device for secondary use by producing hot water by heating and circulating the hot water to a radiator located at a remote location.

<Prior Art> A heater of this type has been disclosed in Japanese Utility Model Application Publication No. 126052/1983 and is shown in FIG. 1.

Its structure consists of one combustion body such as a portable stove, etc.
It is composed of a fire power adjustment handle 2 for adjusting fire power by manual operation, a red-hot or burning combustion burner 3, a reflector plate 4, an outer frame 5, and the like.

On the other hand, the heating unit 6 applied to various combustion bodies 1 separate from the combustion body 1 has a heat exchanger therein (not shown), a hot water tank communicating with the heat exchanger, and a hot water tank communicating with the hot water tank. The circulation pump is integrated with the
It also includes a power cord 8 for the circulation pump, etc.

Then, it communicates with a radiator 8 such as a floor heating panel via a heat exchanger and a circulation pump to circulate hot water.

Next, to explain this conventional operation, after placing the heating part 6 on the combustion body 1 in advance, combustion is started in the combustion burner 3 by performing a well-known combustion operation, and the radiant heat is reflected. It is emitted forward at the plate 4 and used for primary heating and other purposes.On the other hand, part of the exhaust gas or combustion heat generated by combustion rises, so that heat is used to connect the heat exchanger of the heating section 6 and the heat exchanger. exchanged to make hot water.

By closing the switch for the circulation pump, the circulation pump sends the hot water to the radiator 7 for secondary heating such as floor heating.

<Problems to be solved by the invention> In this conventional heater, there is no relationship between the heating power adjustment handle and the circulation pump, so the circulation pump switch must be manually closed after combustion. was necessary.

Therefore, it is common for people to forget to close and open the switch for the circulation pump after combustion or when extinguishing a combustion body, causing the hot water temperature in the heat exchanger to reach an abnormally high temperature or the amount of hot water to decrease. In some cases, there was a risk of dry firing, and the circulation pump continued to be started after the fire was extinguished.

<Means for solving the problem> A heat exchanger for producing hot water is provided at a position heated by exhaust heat generated from an indoor exhaust type combustion body such as a portable stove, and the heat exchanger and a hot water tank are connected to each other. In a heater that connects a circulation pump and a radiator to circulate hot water for heating, the circulation pump and a heat-sensitive element that turns off the hot water temperature when the temperature is below a set temperature and turns on when the temperature exceeds the set temperature are connected in series. The present invention further relates to an automatic control device for a heater comprising a test run switch connected in series with a circulation pump and in parallel with a heat-sensitive element.

<Operation> First, after replenishing the hot water tank 9 with water, the test run switch 14 is manually pressed to energize the circulation pump 13 to circulate water and check for water leakage.

When water leakage is confirmed, when the test run switch 14 is released, the circulation pump 13 is stopped and the water circulation is also stopped.

Next, the combustion body 1 is combusted by a well-known combustion operation.

This provides primary heating with radiant or reflected heat.

Heat exchanger 11 by rising exhaust gas or heat
When the water inside is heated and reaches a set temperature or higher, the heat sensitive element 10 senses this and closes the circuit.

As a result, the circulation pump 13 is energized and started, and hot water is circulated to the radiator 7 for secondary heating such as floor heating.

On the other hand, when it is desired to stop the combustion body 1 and the heating, the combustion burner 3 is extinguished by extinguishing the fire power adjustment handle 2, and therefore the exhaust heat or exhaust gas stops heating the heat exchanger 11, and the hot water Since the temperature also decreases, the heat sensitive element 10 senses this and opens the electric circuit to stop energizing the circulation pump 13, completely stopping everything.

Of course, if the heating power is adjusted with the heating power adjustment handle 2, the hot water temperature is also adjusted, and the temperature of the radiator 7 is also adjusted.

<Example> The basic configuration is almost the same as the conventional example. Therefore, to explain the difference from the conventional example, the hot water tank 9 of the heating section 6 has a temperature of about 50 degrees Celsius as a standard, and when the temperature is higher than that, A heat-sensitive element 10 such as a thermostat that turns on and turns off when the temperature is lower than that is installed, and the heat exchanger 11 turns on when the temperature reaches about 90 degrees Celsius or higher.
A heat-sensitive element 12 for alarm is attached.

Further, the circulation pump 13 is located below the heat exchanger 11 and the hot water tank 9.

In terms of the electric circuit, the heat sensitive element 10 is connected in series with a circulation pump 13, and in parallel with a trial run switch 14 which closes when pressed and opens when released.

15 is an alarm such as a buzzer connected in series with the heat-sensitive element 12; 16 is a lamp for a circulation pump; and 17 is a commercial power source.

<Effect of the invention> Indoor exhaust type combustion body such as portable stove 1
A heat exchanger 11 for producing hot water is provided at a position heated by exhaust heat generated by the heat exchanger 11, and the heat exchanger 11, a hot water tank 9, a circulation pump 13, and a radiator are connected to circulate the hot water to provide space heating. When the circulating pump 13 and the hot water temperature are below the set temperature in the heater,
A heat-sensitive element 10 that turns off and turns on when the temperature exceeds a set temperature is connected in series, and a trial run switch 14 is connected in series with the circulation pump 13 and in parallel with the heat-sensitive element 10, so that radiant heat or reflected heat is generated by the combustion body. In addition to providing primary heating and secondary heating using hot water, the circulation pump automatically turns on when the hot water temperature is reached.
- It is convenient because it is turned off, and it is safe because there is no abnormally high temperature of hot water, no dry heating of the heat exchanger, and no need to forget to stop the circulation pump.

Moreover, since the control circuit is not built into the combustion body, the combustion body and the heating section can be freely attached and removed as needed, and the heating section can be used not only for a specified combustion body but also for an existing combustion body.

In addition, water can be easily checked for water leakage in the piping by circulating water with a circulation pump before heating water using the test run switch, and when checking for water leakage, there is no need to worry about any adverse effects on the heat-sensitive element. Nor.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a conventional heater, FIG. 2 is a sectional view of the heater according to an embodiment of this invention, and FIG. 3 is an electric circuit diagram thereof. DESCRIPTION OF SYMBOLS 1... Combustion body, 7... Heat radiator, 9... Hot water tank, 10... Heat sensitive element, 11... Heat exchanger, 12
...Circulation pump, 14...Test run switch.

Claims (1)

[Scope of utility model registration request] Indoor exhaust type combustion body such as portable stove 1
A heat exchanger 11 for producing hot water is provided at a position heated by exhaust heat generated by the heat exchanger 11, and the heat exchanger 11, a hot water tank 9, a circulation pump 13, and a radiator are connected to circulate the hot water to provide space heating. When the circulating pump 13 and the hot water temperature are below the set temperature in the heater,
This automatic control device for a heater comprises a heat sensitive element 10 which is turned off and turned on when the temperature is higher than a set temperature, connected in series, and a trial run switch 14 connected in series with a circulation pump 13 and in parallel with the heat sensitive element 10.