JPS5883162A - Refrigerator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a refrigeration system that can air condition multiple rooms simultaneously or by switching between them, and can supply hot water using the exhaust heat generated at that time.

Japanese Patent Application Laid-Open No. 54-75846 has been proposed as a freezing device for Zelkova. However, in this publication, multiple user units are connected in parallel to the hot water heat exchanger, so when using this hot water supply heat exchanger, at least one unit must be used. There was a problem when the side unit was forced into operation and the hot water supply operation was not possible unless air conditioning was performed in a room with no air conditioning load.

In view of the above-mentioned deficiencies, the present invention provides that the user side unit I during hot water supply operation
The purpose of this system is to prevent residents' rooms from being air-conditioned more than necessary by not running out the refrigerant until the end of the day.

That is, the present invention provides a compressor, a hot water heater, a pressure reducing device for hot water supply, a parallel circuit of a first opening/closing box that opens during cooling operation and closes during hot water supply operation, an outdoor heat exchanger, a pressure reducing device, and a pressure reducing device for hot water supply. The parallel circuit on the user side, in which multiple outdoor heat exchangers are connected in parallel, which is used when The bypass pipe is configured to be provided with a second opening/closing box that is closed during cooling operation and opened during hot water supply operation to control refrigerant flow.

An embodiment of the present invention will be described below with reference to the drawings.

In Figure 1, (1) is the refrigerant compressor, (2) is the hot water storage tank (
3) is a built-in heat exchanger for hot water supply, (4) is an l-r receiver tank, and (5) is a pressure reducing device for hot water supply (6) and a first on-off valve (7) that opens during cooling operation and closes during hot water supply operation. parallel circuit,
(8) is an outdoor heat exchanger with an outdoor blower (9) attached, and an indoor heat exchanger (11a) (11b) with indoor blowers (10a) and (10b) attached to (8), respectively. (111 units).

And the inlet side refrigerant pipes (12a) (12
b) respectively include a cooling pressure reducing device (13a) (131)) and a third and fourth opening/closing device (14a) (which is opened when the unit is in operation).
14 tl is also the outlet side refrigerant pipe (15a) (151))
There are 5th and 6th opening/closing valves (1) which are opened when the unit is in operation.
6a) (16tli: are arranged respectively. 07) is a bypass 1g that bypasses the user side parallel circuit 081 in which the seedling inside l heat toilet (11a) (11II)) is connected in parallel,
This bypass pipe is provided with a second inspection cell 09 that is closed during cooling operation and opened during hot water supply operation to control refrigerant flow.

Now, when the cooling operation is performed using the two user sides (Unit IAICB) at the same time, the first open/close position (7
), 6th opening/closing 9F (14a), 4th opening/closing square (141))
, the 5th opening/closing ff (16a), the 6th opening/closing box (161)) are opened 1~The high l crystal refrigerant discharged from the pressure a dust (1) is transferred to the hot water supply heat exchanger (2) -> receiver. Tank (4) → 1st
Opening/closing box a) → Third opening/closing valve (11111 heat exchanger (b) in 14aJ-g Easy storage tank (3)
In addition to heating the water inside the room, the indoor heating device (11a) (
11t)) to cool the room to a large extent. If only the hot water storage tank (B) is used, hot water can be supplied via the hot water pipe connected to 311C. (14, a), the fifth opening/closing box (16a) or the fourth opening/closing box (14b), and the sixth opening/closing box (16 TL) can be opened and closed as necessary.In addition, the outdoor blower (9) Depending on the load of the two user-side units (8)) and the heat exchange rate of the hot water supply heat exchanger (2), (8) Matsu Control determines the power exchange rate of the outdoor heat exchanger (8). Variable heat for hot water supply 7128
There is no need to apply the sum of the thermal parameters of the outdoor heat exchanger (2) and the outdoor heat exchanger (8) to the heat front of the user side.

It's winter again @ There is no air conditioning load in the temple room and only hot water supply is required.
etd-o -o →nown < 3rd opening/closing ff (14
a), 4th opening/closing % (14bJ, 5th opening/closing 99 < 16a
), 6th opening (2) square (16D) and 1st opening/closing square (7
) is closed and the refrigerant discharged from the Inaki (1) is transferred to the hot water supply heat exchanger (2) → receiver tank (4) → hot water supply pressure reducing device (6) → outdoor heat exchanger (8) → bypass pipe. αη→Second
The water is circulated from opening/closing device 09 to pressure kd machine (1), and the water in the hot water storage tank (3) is energized by the hot water heating device (2), and the outdoor pressure exchanger (8) acts as an evaporator. and absorbs heat from outside.

In this way, either - 10,000 or both swords can be used at the same time 1 uni 7
(A) and (B), as well as the second opening/closing box tm, which is closed during cooling operation and opened during hot water supply operation, is connected to the bypass positive G force that bypasses the parallel circuit 0 on the user side. Because of this, even when there is no cooling load in a large room, hot water supply operation can be performed without cooling the room, and hot water can always be supplied. Also, compared to the conventional system where hot water supply cannot be performed without cooling an unused room, it does not cause discomfort to the occupants.

Historically, as shown in Figure 2, a suction pipe (2υ) with compression m(1) and a VC of 40,000 liters in a discharge pipe were installed, and the refrigerant was circulated as shown by the dashed arrow to heat the room. You can do it.

Main water supply recirculator converter (2), hot water supply pressure reducing device (6) and first
Opening/closing - A 7th opening/closing box (to) is installed in the auxiliary bypass pipe (to) that bypasses the parallel circuit (5) with 7F (7), and when the outside temperature is low, the opening/closing box is closed and the hot water storage tank ( 3) The temperature of the hot water in the hot water tank (2) is absorbed through the heat exchanger (2) for efficient heating operation, and when the temperature of the hot water in the hot water storage tank (3) drops abnormally, this seventh opening/closing box is activated. (To) and open the hot water heat exchanger (
2) is designed to prevent refrigerant from entering.

Components that are the same as those in the embodiment shown in FIG. 1 are designated by the same reference numerals and their explanations will be omitted.

As described in detail above, the present invention relates to a compressor, a heat exchanger for hot water supply, a gamma pressure device for hot water supply, a first opening/closing parallel circuit that opens during cooling operation and closes during hot water supply operation, an outdoor heat exchanger, and a pressure reducing device. The user-side parallel circuit, in which multiple indoor heat exchangers used in either direction or both directions are connected in parallel, is sequentially connected in a four-way configuration via refrigerant piping, and the @grip side parallel circuit is connected to the side. By providing a bypass pipe for air conditioning, the bypass pipe is configured to have a second opening/closing box that is closed during cooling operation and opened during hot water operation, so there is no cooling load in each room, not only during cooling operation. At times, hot water can be operated without cooling the room, and hot water can always be supplied.

Furthermore, the present invention provides an extremely superior refrigeration system that does not cause discomfort to the occupants, compared to conventional systems in which hot water cannot be supplied without cooling rooms that are not in use.

[Brief explanation of the drawing]

FIG. 1 is a refrigerant circuit diagram showing one embodiment of the present invention, and FIG. 2 is a refrigerant circuit diagram showing another embodiment. (1)... Pressure pump, (2)... Heat exchanger for hot water supply, (5)... Parallel circuit, (6)...
...Hot water supply pressure reducing device, (7)...First opening/closing box, (8)...Outdoor heat exchanger, (11a) (1
1b) Indoor heat exchanger, (13a) (13
b)......pressure reducing device, 0η...pibyy
-Pipe, (g)...Using side parallel circuit, a9...
...Second opening and closing square. Applicant: 1 person other than Sanyo Electric Co., Ltd.

Claims (1)

[Claims] (1) A parallel circuit of a compressor, a hot water heater, a pressure reducing device for hot water supply, and a first on-off valve that opens during cooling operation and closes during hot water supply operation;
A user-side parallel circuit in which an outdoor heat exchanger, a pressure reduction device, or a plurality of indoor heat exchangers used either or both at the same time are connected in parallel, is sequentially connected in a circular manner via refrigerant piping, and A refrigeration system characterized in that a bypass Y-pipe bypassing the parallel circuit on the user side is provided, and the bypass pipe is provided with a second opening/closing box that is closed during cooling operation and opened during hot water supply operation.