JPH0668384B2 - Akiumeta for heat transfer - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an accumulator for heat transfer of an unpowered heat transfer device applied to a heating system, a solar heat collecting system, an exhaust heat recovery system and the like.

2. Description of the Related Art A conventional heat transfer accumulator of this type has a liquid chamber 2 containing a float 1 and a liquid chamber 2 as shown in FIG.
And a gas chamber 4 which is communicated with and closed by a valve 3, a gas inflow pipe 5 is opened in the gas chamber 4, and a liquid inflow pipe 6 and a liquid outflow pipe 7 are opened in the liquid chamber 2. Was set up. (For example, Japanese Patent Application Laid-Open No. 61-6543
(Problems to be solved by the invention) However, in the above-mentioned configuration, when the accumulator is incorporated in the system or when the system is connected to the pipe, chips, dust, water, etc. of the pipe are mixed into the pipe. ,
When foreign matters such as chips and dust enter the accumulator, they are bitten into the valve 3, so that the valve 3 cannot be closed and cannot operate.

On the other hand, the mixed water solidifies at 0 ° C. or lower, disables the operation of the valve 3 similarly to the above, and accelerates the decomposition of the heat medium such as the refrigerant enclosed in the system. Further, if the gas generated by the thermal decomposition becomes a non-condensed gas and stays in the accumulator, the pressure of the liquid chamber 2 does not decrease, so that the refrigerant does not circulate and heat cannot be transferred. Had a point.

The present invention solves such a conventional problem, and an object of the present invention is to operate the system normally even when foreign matter or water is mixed in the system.

Means for Solving the Problems In order to solve the above problems, the heat transfer accumulator of the present invention comprises a gas inflow pipe, a liquid inflow pipe and a liquid outflow pipe provided in an accumulator having a built-in float valve mechanism. While opening in the accumulator, a filter and a valve mechanism are arranged in the gas inflow passage in the flow direction of the gas, and a filter, a dryer, and a check valve in the liquid inflow passage are arranged in the flow direction of the liquid. A valve, and a check valve is provided in the liquid outflow passage.

The present invention has the above-described structure, and the foreign matter that is about to flow into the accumulator from the gas inflow pipe and the liquid inflow pipe is captured by the filter, while the liquid water contained in the system is installed in the liquid inflow pipe. Is adsorbed on.

Embodiments Embodiments of the present invention will be described below with reference to the accompanying drawings.

In FIGS. 1 and 2, 1 is a float which is internally provided in the liquid chamber 2, the valve 1 is opened and closed by the float 1, and the gas chamber 4 provided above the liquid chamber 2 communicates with or closes the liquid chamber 2. It will be in the state of being. On the other hand, the gas inlet pipe 5 is opened to the gas chamber 4, and the liquid chamber 2 is provided with a liquid inlet pipe 6 and a liquid outlet pipe 7. Further, a filter 8a is arranged in the system passage of the gas inflow pipe 5, and a filter 8b, a dryer 9 and a check valve 10a are arranged in this order in the system passage of the liquid inflow pipe 6. The heat transfer accumulator 11 is connected to the heater 12 by the gas inflow pipe 5 and the liquid outflow pipe 7, and
A liquid inflow pipe 6 is connected to the radiator 13. further,
The heater 12 and the radiator 13 are connected by a forward pipe 14, and a latent heat medium 15 such as chlorofluorocarbon is sealed inside to form a heat transfer system.

In the above configuration, when the liquid chamber 2 is almost empty and the float 1 is below, the valve 3 is in the closed state.
The latent heat medium 15 heated and pressurized in (4) passes through the forward pipe (14), is cooled by the radiator (13), and flows into the liquid chamber (2).

When the liquid level of the latent heat medium 15 in the liquid chamber 2 rises, the float 1 pushes up the valve 3 and opens it. At this time, the gas of the heater 12 is guided to the gas chamber 4 and further to the liquid chamber 2 through the gas introduction pipe 5, and the pressures of the heater 12 and the liquid chamber 2 become substantially equal. Therefore, the liquid of the latent heat medium 15 accumulated in the liquid chamber 2 is dropped by the gravity action into the heater 12 through the liquid outflow pipe 7, and the float 1 in the liquid chamber 2 also moves downward and the valve 3 is closed and returns to the initial state. By repeating such operations, the latent heat medium 15 in the system circulates intermittently, and the heat applied to the heater 12 is transferred to the radiator 13.

Then, when foreign matter such as chips of the pipe is mixed in the system, the latent heat medium 15 circulates along with the flow of the latent heat medium 15, but the foreign matter tries to flow into the accumulator 10 through the liquid inflow pipe 6. Is clamped by the filter 8b,
On the other hand, the foreign matter that tries to flow into the accumulator 10 through the gas inflow pipe 5 is stopped by the filter 8a and does not flow into the gas chamber 4 and the liquid chamber 2, so that the foreign matter enters the valve 3 and the check valves 10a and 10b. It is possible to avoid the situation where the valve gets stuck and the valve cannot be closed. Furthermore, since the water mixed in the system circulates in a state of being dissolved in the latent heat medium 15, it is adsorbed by the dryer 9 when flowing through the liquid inflow pipe 6 and does not cause freezing inside the accumulator 10. Therefore, according to this configuration, even when foreign matter and water are mixed into the system, the filter and the dryer can prevent the foreign matter from flowing into the accumulator and the check valve, so that the operation of the system is always kept normal. be able to.

Effects of the Invention As described above, the heat transfer accumulator of the present invention has the following effects.

(1) Since the filter is installed on the upstream side of the check valve of the gas inflow pipe and the liquid inflow pipe of the accumulator, even if foreign matter is mixed inside the system, the foreign matter is caught by the filter. The lator and check valve can operate normally.

(2) Since a dryer is installed in the liquid inflow pipe of the accumulator, even if water gets inside the system,
Since the moisture is adsorbed by the dryer, the thermal decomposition of the latent heat medium is not promoted by the mixed moisture, and the operation of the system can always be kept normal.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a heat transfer accumulator which is an embodiment of the present invention, FIG. 2 is a configuration diagram of a heat transfer system using the heat transfer accumulator, and FIG. 3 is a conventional heat transfer accumulator. It is sectional drawing of an accumulator. 1 ... Float, 3 ... Valve, 5 ... Gas inlet pipe, 6 ...
Liquid inflow pipe, 7 ... Liquid outflow pipe, 8a, 8b ... Filter, 9 ... Dryer, 10a, 10b ... Check valve.

Claims (1)

[Claims] 1. An accumulator having a built-in float valve mechanism is provided with a gas inflow pipe, a liquid inflow pipe, and a liquid outflow pipe to open the inside of the accumulator, and the gas inflow system passage is arranged in the order of the gas flow direction. A heat transfer accumulator having a filter and a valve mechanism, a filter, a dryer, and a check valve provided in the liquid inflow passage in the flow direction of the liquid, and a check valve in the liquid outflow passage. Rater.