JPS5885030A - Heating device - Google Patents

Abstract

PURPOSE:To circulate heating medium smoothly and prevent the generation of noise in a heating device having a secondary heating medium circuit utilizing phase changes by a controlling method wherein after the heat supply source is started a pump installed in the heating circuit is started. CONSTITUTION:The heating system is arranged such that the heating medium flowing through a piping 8 of a heating circuit 2 is heated to vaporize by the heat supplied by a heat supply source 1 through a heat exchanger 3 and the gasified medium flow into a radiator 4 where it radiates heat which heats the room. Subsequently, the liquefied heating medium flows through a liquid receiver 5 and a piping 7 back into the pump 6. Further, when starting the heating system, th heat supply source 1 and the pump 6 are arranged to be rendered ON and OFF with a time lag. In brief, the heat supply source 1 is first turned ON to allow the vaporized heating in the piping 8 to flow through it into the radiator 4, whilst the heating medium in the piping 7 is allowed to flow into a liquid receiver 5 so that the suction side of the pump 6 may be filled with liquid medium, and then the pump 6 is turned ON to allow the heating medium to circulate through the heating circuit 2.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heating Ngt device having a secondary heat medium circuit utilizing a phase change temperature. ).

In the figure, 1 is a heat source device such as a heat pump or a boiler, and 2 is a @ cell circuit. This heating circuit 2 is a heat source #C
heat exchanger 3, heat radiator 4. It consists of a liquid receiver 5, a pump 6, and piping 7.8).

Also, in the heating circuit 2A, evaporation is carried out in the heat exchanger 3.

A heat medium (for example, Freon 11, Freon 113, Freon 114, etc.) that is compressed in the heat radiator 4 is filled.

Next, the operation will be explained. During heating operation using the radiator 4, the heat source device 1 is turned on.

The heat medium in the heating circuit 2 is heated via the heat exchanger 3,
The liquid yl) becomes vapor. The heat medium that has become steam passes through the pipe 8 and goes to the radiator 4, where it radiates heat and warms you up! Do J.

As a result, the heat medium is condensed and liquefied, and the liquid receiver 5 and the piping 7
It is sucked into the pump 6 through the pipe 7ρ) and sent out to the heat exchanger 3 again through the pipe 7ρ).

When heating is turned off, heat source #C is turned on and off.
1, the pump 6 is turned off at (1 o'clock). Also, when the heating is turned on, 1! is a control in which the heat source!kt1% pump 6 is turned on at the same time.

(ρ) When such on/off control is performed, for example, during heating, the heat medium in the heating circuit 2 releases liquid heat to the lowest temperature area, the lowest part, the trap-shaped area, etc. Retain as a medium19. For example, the heat medium may be in a vapor state before and after the pump 6.

Under such conditions, when the heat source device 11 pump 6 is operated with the heating ON signal, the pump 6 will suck in two phases of steam or steam and liquid, and the heat medium cannot be circulated sufficiently. It had drawbacks such as causing a lot of noise on TV.

This invention was made in order to eliminate the above-mentioned conventional drawbacks, and by providing a time lag between turning on and off the heat source device and turning on and off the pump, the heat medium is circulated in the heating circuit. The purpose is to provide a heating device that can smoothly perform heating.

This will be explained again with reference to FIG. The heating device to which the present invention is applied has the same configuration as shown in the figure, but the operation control when the heating is turned on is performed using the heat source #ci.
After ll is turned on, the pump 6 is controlled to be turned on.

When a heating system employing the above-mentioned control is being heated, both the heat source device 1 and the pump 6 are turned on, as in the past, and the heat medium in the heating circuit 2A is heated via the heat exchanger 3. , liquid-D) becomes vapor. The heat medium that has become steam is transferred to piping 8
It passes through to the radiator 4, where it radiates heat and performs W# bunching.

Thereby, the heat medium is condensed and liquefied, passed through the receiver 5 and the pipe 7, sucked into the pump 6, and sent out from the pipe 7 to the heat exchanger 3 again.

Then the heating is turned off and the heat source fold i11. After both pumps 6 are turned off, when the heating ON signal is input again, first, the heat source device 1 is turned on. Therefore, the heat medium in the chamber circuit 2 is heated by the heat exchanger 3 and becomes steam. , the pressure rises and moves from the pipe 8 toward the radiator 4. At this time, the liquid accumulated in the pipe 7 is expelled in the direction of the liquid receiver 5, and the suction of the pump 6 is filled with the liquid heat medium.

Therefore, after this, if the pump 6 is turned on.

The heat medium can be smoothly circulated through the e-cell circuit 2.

In the above example, the control at startup was described, but when the pump 06 is operating after the heat source gkflljl is stopped, the inside of the heat exchanger 3 is filled with liquid refrigerant to ffI4, and the pump 6 Since the piping 7 on the suction side becomes a two-phase flow of liquid and gas, which causes noise generation, it is desirable that the pump 6 be operated at the same time as the heat source device 1 (ρ) or earlier than the heat source device 1.

Also, the signal to turn on the pump 6 at startup is the heat source device fl.
The method may be based on a timer after the start of 1, or detection of temperature, pressure, etc., and is not particularly limited here.

As described above, according to the heating device of the present invention, the operation is controlled by staggering the activation of the heat source device and the pump in the heating circuit, so that the liquid heat medium is filled in the suction pipe side of the pump. When operating the pump, the heat medium can be circulated smoothly without noise.

[Brief explanation of drawings]

The figure is a circuit diagram of a heat medium showing an example of a conventional heating device and a heating device of the present invention. 1...Heat source device, 2...W & chamber circuit, 3...Heat exchanger, 4...Radiator, 5...Liquid receiver, 6...Pump, 7, 8... Piping. Agent Tsutomu Kuzuno −

Claims (1)

[Claims] (11) A heat source device, a heat exchanger that heats a heat medium filled in a pipe with the heat of this heat source device, and a heat exchanger that radiates heat from a heat medium that has been heated by the heat exchanger and turned from liquid to vapor. A radiator that condenses and liquefies the heat medium from the outlet side of the radiator is attached to the pump 1 that sucks the heat medium at the outlet side of the radiator and sends it to the heat exchanger.When starting the heat source device and the pump, (2) When the heat source device and the pump are stopped, the pump is stopped at the same time as the heat source device is stopped or from the heat source device. The heating device according to claim 1, characterized in that it is stopped early.