JPH05180450A - Hot water circulation type floor heating device - Google Patents

Abstract

PURPOSE:To enable a wide utilization of floor material to be carried out on a floor heating radiator. CONSTITUTION:A hot water circulation type heating device is provided with a closed circulation circuit for circulating hot water through a boiler 1 and a floor heating radiator 4, wherein a bypassing circuit 7 is arranged at the boiler 1 in parallel with the floor heating radiator 4. The bypassing circuit 7 is assembled with a bypassing pump 9 for mixing a part of the returned hot water to a going side through the bypassing circuit 7 in the case that the detected temperature detected by the temperature sensor 11 for use in sensing the hot water temperature at an inlet port of the hot water at the floor heating radiator 4 is high. Accordingly, the temperature of the hot water flowing into the floor heating radiator is not increased more than the required value and the floor material to be placed on the floor heating radiator is not required to provide any heat-resistance characteristics.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water circulation type floor heating apparatus which performs a floor heating function by circulating hot water.

[0002]

2. Description of the Related Art A conventional hot water circulation type floor heating system is
For example, it has a structure as shown in Japanese Patent Laid-Open No. 61-213422. That is, as shown in FIG. 2, the boiler 1 and the floor heating radiator 4 are connected to the hot water outflow pipe 2 and the return pipe 3
And a closed circulation circuit of hot water that returns to the boiler 1 again via the boiler 1, the outflow pipe 2, the floor heating radiator 4, and the return pipe 3. A thermal valve 12 is installed in the outflow pipe 2.
The return pipe 3 is provided with a temperature sensor 10. The temperature sensor 10 is connected to the controller 8, and the controller 8 operates the thermal valve 12 to control the heat radiation amount of the floor heating radiator 4.

In the hot water circulation type floor heating apparatus having the above-mentioned structure, the floor heating is performed by operating the operation part 14 of the controller 8 to move the heat valve 12 to control the flow rate of hot water from the boiler 1 to the floor heating radiator 4. Do. The hot water sent from the boiler 1 to the floor heating radiator 4 through the outflow pipe 2 radiates heat in the floor heating radiator 4, is cooled, returns to the boiler 1 from the return pipe 3, is heated again, and is circulated as hot water.

[0004]

In the above-described hot water circulation type floor heating apparatus, since the temperature of the hot water flowing into the floor heating radiator 4 is considerably high, the wooden system laid on the surface of the floor heating radiator 4 is used. The floor materials such as floor materials, cork tiles, and floor cushions can only be applied with high heat resistance temperature, and ordinary floor materials cannot be used.

The present invention has been made in order to solve the conventional problems, and an object thereof is to obtain a hot water circulation type floor heating system which allows a wide selection of floor materials to be laid on a floor heating radiator. To do.

[0006]

A hot water circulation type floor heating apparatus according to the present invention comprises a closed circulation circuit of hot water circulating around a boiler and a floor heating radiator, and is installed in parallel with the floor heating radiator on the boiler side. Bypass circuit is provided, and in this bypass circuit,
A bypass pump for returning a part of the return hot water to the outgoing side via the bypass circuit when the temperature detected by the temperature detecting means for detecting the hot water temperature of the hot water inlet portion of the floor heating radiator is high. ..

[0007]

In the hot water circulation type floor heating system according to the present invention, when the temperature of the hot water flowing into the floor heating radiator is higher than necessary,
The bypass pump operates and the return hot water flows into the outflow side through the bypass circuit, and by mixing the low temperature return hot water, the high temperature hot water on the outflow side is cooled to an appropriate temperature, and the inlet side part of the floor heating radiator. Will not be higher than necessary.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram of a hot water circulation type floor heating system showing an embodiment of the present invention. That is, this floor heating system
Floor heating such as a floor heating panel through a return pipe 3 and a boiler 1 having a built-in combustion device for producing a combustion gas as a heating fluid, a heat exchanger for exchanging heat between the combustion gas and water, and a circulation pump. The radiator 4 is connected to form a closed circulation circuit of hot water with the boiler 1 and the floor heating radiator 4 as the core. In the outflow pipe 2 that sends hot water from the boiler 1 to the floor heating radiator 4, the boiler 1 is located near the boiler 1.
A check valve 5 for restricting the return of hot water to the side is provided. A check valve 6 that restricts the backflow of hot water is also provided at a position near the boiler 1 of the return pipe 3 that returns hot water from the floor heating radiator 4 to the boiler 1.

A bypass circuit 7 in parallel with the floor heating radiator 4 is provided between the forward pipe 2 and the return pipe 3 which are closer to the boiler 1 than the floor heating radiator 4. The bypass circuit 7 is provided with a bypass pump 9 for performing a water supply operation from the return pipe 3 side to the outflow pipe 2 side by the controller 8. The controller 8 inputs the detection signals of the temperature sensor 10 provided in the return pipe 3 near the floor heating radiator 4 and the temperature sensor 11 provided in the outgoing pipe 2 near the floor heating radiator 4 to input the floor heating heat radiation. Forward pipe 2 near the entrance of vessel 4
It outputs a control signal to the thermal valve 12 provided in the. The control output of the controller 8 to the bypass pump 9 is limited when the temperature sensor 11 on the outflow pipe 2 side detects a temperature exceeding a predetermined value. In the figure, 13 is a fan convector, 14 is an operation part of the controller, and 15 is a wooden floor material laid on the surface of the floor heating radiator 4, floor materials such as cork tiles and floor cushions.

In the hot water circulation type floor heating apparatus having the above-mentioned structure, when the temperature of the hot water flowing into the floor heating radiator 4 is lower than the set value, the bypass circuit 7 is in the closed state. The hot water is conducted to the floor heating radiator 4, and the floor heating radiator 4 radiates heat to perform floor heating. When the temperature of the hot water flowing into the floor heating radiator 4 exceeds a predetermined value,
The controller 8 operates the bypass pump 9 by the control output by the output of the temperature sensor 11. When the bypass pump 9 operates, a part of the low-temperature return hot water is mixed with the high-temperature hot water in the outgoing pipe 2 through the bypass circuit 7, and the temperature of the hot water flowing into the floor heating radiator 4 is lowered. Therefore, since the inlet portion of the floor heating radiator 4 does not reach an unnecessarily high temperature, it is possible to apply the ordinary floor material 15 without any heat resistance.

[0011]

As is apparent from the above description of the embodiments, according to the present invention, the temperature of the hot water flowing into the floor heating radiator is prevented from exceeding a predetermined value due to the mixing of the return hot water. The entrance of the radiator does not get hotter than necessary, allowing a wide selection of floor materials to be laid on the floor heating radiator, increasing the degree of freedom in floor surface specifications.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a hot water circulation type floor heating system showing an embodiment of the present invention.

FIG. 2 is a configuration diagram of a conventional hot water circulation type floor heating system.

[Explanation of symbols]

 1 Boiler 2 Outgoing pipe 3 Return pipe 4 Floor heating radiator 7 Bypass circuit 9 Bypass pump 11 Temperature sensor 15 Floor material

Front page continuation (72) Inventor Kinzo Suzuki 3-40 Teganoshitahanaka, Nakatsugawa City, Gifu Prefecture Mitsubishi Electric Engineering Co., Ltd.Nagoya Office Nakatsugawa Branch Office (72) Inventor Kazuo Nishio Teganoshita, Nakatsugawa City, Gifu Prefecture No. 3-40 Mitsubishi Electric Engineering Co., Ltd. Nagoya Office Nakatsugawa Branch

Claims (1)

[Claims] 1. A closed circulation circuit for hot water that returns from a boiler to a floor heating radiator through an outflow pipe and returns to a boiler from a return pipe. A bypass circuit is provided between the outflow pipe and the return pipe. In this bypass circuit, the bypass circuit is opened when the temperature detected by the temperature detecting means for detecting the hot water temperature of the hot water inlet portion of the floor heating radiator is high, and the hot water on the return pipe side is mixed with the hot water on the outgoing pipe side. A hot water circulation type floor heating system that is equipped with a bypass pump that allows it.