JPH0626774Y2 - Piping structure using electric three-way valve for water volume adjustment in air conditioner - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an electric three-way valve for adjusting the amount of water in an air conditioner that constantly distributes a required amount of cold and hot water through a heat exchanger coil to develop an optimum temperature distribution in a room.

Conventionally, the electric three-way valve shown in FIG. 1 is provided in a part of the coil flow pipe as a mechanism for adjusting the amount of cold and hot water flowing in the heat exchanger coil. By the way, the water introduced from the inlet A flows in the direction of the bypass B when the valve A is closed when it is not energized, but when this is energized, the valve A is opened and the port of the bypass B is shut off and the heat exchanger is closed. It will flow into the coil C.

As described above, in the conventional valve structure, the flow direction of water is changed and adjusted by the opening / closing action of the valve A. However, the flow direction of water is changed from the inlet A to the bypass B or irrespective of the opening / closing of the valve. Since the coil C is always bent in the direction perpendicular to the side of the coil C, the water resistance is remarkably large and the energy is consumed wastefully.

In view of the above drawbacks, the present invention partially improves the internal mechanism of the electric three-way valve to allow the water flow direction to flow straight to the coil side when needed, and to bypass by-flow water directly in the outlet direction when not in use. When the power is turned on, the valve is closed by 90 ° to supply cold and hot water to the water distribution side pipe (2).
Through the heat exchanger coil (1) side straight through,
It is intended to provide an electric three-way valve for water volume adjustment in an air conditioner, which has a flowing water circuit in which a valve is opened by 90 ° when not energized to drain from a bypass.

The detailed structure of the embodiment of the present invention will be described below with reference to FIGS. 2 and 3. (1) is a heat exchanger coil, (2) is a water distribution side pipe, (3) is a bypass pipe, and (4) is Exit pipe, (5)
Is a drain side pipe, and the pipes (2), (3), (4) and (5) are connected to each other in an H shape.

(6) is a valve socket that is connected to the bypass pipe (3), the outlet pipe (4), and the drain pipe (5) .The bypass port (7) and the water outlet (8) are alternated inside. A valve is provided to open and close 90 °.

(9) is an electric motor that opens and closes the valve A.

As described above, the present invention is formed into an H-shape as a whole, and the valve socket (6) has a bypass port (7) and a water outlet (8) which can be alternately opened and closed. 90 °
It is movably supported, and an electric motor (not shown) operates by energizing during heat exchange to open and close the valve.

For example, at the time of heat exchange, cold and hot water flowing in the pipe is circulated straight to the heat exchange coil (1) side through the water distribution side pipe (2), and the water after the heat exchange is discharged from the outlet side pipe (4) to the drain side. Distribute straight to the pipe (5).

Also, when heat exchange is not used, the water outlet is activated by operating the valve
When the (8) is closed and the by-pass port (7) is opened at the same time, the unused water is not passed through the heat exchange coil (1), but a direct current is applied to the circuit of the drain side pipe (5) through the by-pass pipe (3). Can be done.

As described above, the electric three-way valve according to the present invention is the pipe on the water distribution side.
(2), by-pass pipe (3), outlet side pipe (4) and drain side pipe (5) are connected to each other in an H shape, and a valve socket (6) is connected to the connection base to form an integral structure. In addition, since the bypass port (7) and the water outlet (8) are alternately opened and closed by 90 ° by the valve (a), the overall shape becomes extremely compact, and the complicated piping as in the past is not required at all. Not to mention reduction of space required for piping,
It has an effect that various works at the time of attaching the piping are simple.

In particular, during the heat exchange operation, cold / hot water is circulated straight, so there is almost no water resistance, and the amount of heat used can be greatly reduced.

[Brief description of drawings]

FIG. 1 shows the inside of a conventional electric three-way valve, is a diagram of the opening and closing operation state of the valve when not energized and when energized, and FIG. 2 is an external view of the electric three-way valve according to the present invention. The figure shows the inside of the above, and is a diagram of the opening / closing operation state of the valve when not energized and when energized. Explanation of symbols (2) …… Distribution side pipe, (3) …… Bypass pipe (4) …… Outlet side pipe, (5) …… Drain side pipe (6) …… Valve socket, a, valve

Claims (1)

[Scope of utility model registration request] 1. An end of a bypass pipe (3) is integrally connected to a water inlet of a distribution pipe (2) for sending water to a heat exchange coil (1), and the other end of the bypass pipe (3) is connected. The part is connected to the water outlet of the drain outlet side pipe (4) of the heat exchange coil (1) and the valve socket (6) fitted to the drain side pipe (5) to form an overall H-shape. Open the by-pass port (7) at the connection port between the bypass pipe (3) and the valve socket (6) and the water outlet (8) of the outlet side pipe (4) inside the valve socket (6). However, in order to alternately open and close the bypass port (7) and the water outlet (8) in the valve socket (6), the valve A is movably supported by 90 ° inside the valve socket (6). Piping structure using electric three-way valve for water volume adjustment in a characteristic air conditioner