JPH04103928A - Refrigerator - Google Patents

Abstract

PURPOSE:To eliminate the need for a circulating water supply construction for precooling the atmospheric air and reduce equipment and operating costs, by supplying drain from an evaporator into a hollow body disposed in an outside air supply passage, with such a control of supply quantity as to prevent water drops from falling from the hollow body. CONSTITUTION:A drain pan 18 for recovering drain flowing down from a room heat exchanger 7 is provided at a room-side part 1. A multiplicity of pipes 31 formed of a porous high-water-content substance are arrayed in an outside air passage 30 leading to an outside heat exchanger 15. A piping for supplying water from the drain pan 18 to the pipes 31 is provided with a pump P. The water supply capacity per unit time of the pump P approximately equal to the quantity of water evaporated from all of the pipes 31, and the drain is supplied into the pipes 31 in such a condition as to prevent water drops from falling from the pipes 31, by water supply means P, C, S. That is, the drain is supplied into the pipes 31 sufficiently and evenly by the water supply means P, C, S, and the drain contained in the pipes 31 is evaporated as the pipes 31 make contact with the outside air, thereby precooling the outside air. The atmospheric air free of mist is thus supplied evenly to the entire body of the outside heat exchanger 15 so that refrigerating capability can be increased.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a refrigerator provided with an atmospheric precooling means for supplying condensate generated in an evaporator to the atmosphere supplied to a condenser as precooled water.

[Conventional technology]

Conventionally, in order to improve the cooling capacity of the condenser, the configuration was such that pre-cooled air containing no mist could be supplied to the condenser without providing a special mist separator. A porous membrane-like body (41) made of a substance is disposed across the outside air supply path (42) so that the atmosphere passes through it,
A water sprinkler (43) that supplies water to the upper part of the porous membrane (4), and a water receiver (43) that collects excess water flowing down from the porous membrane (41).
44), a pumping conduit (45) with a pump is installed to circulate water from the water receiver (44) to the water sprayer (43), and the drain generated in the evaporator is supplied to the water sprayer (43), the water receiver (44), etc. hand,
It has been considered to pre-cool the atmosphere by evaporating the water contained in the porous membrane (41).

[Problem to be solved by the invention]

However, due to the configuration for circulating water supply to the porous membrane (41), equipment costs and operating costs are high.
If the amount of water supplied from 3) is sufficiently reduced, the porous membrane (
The water content of the porous membrane (41) decreases at the bottom.
), the air pre-cooling capacity was insufficient in the lower part, resulting in a lower overall air pre-cooling capacity.

The object of the present invention is to not only obtain a pre-cooled atmosphere that does not contain mist, but also to eliminate the need for a circulating water supply structure for the atmospheric pre-cooling tank, thereby significantly reducing equipment and operating costs.
Moreover, it is possible to sufficiently and evenly pre-cool the entire atmosphere.

[Means to solve the problem]

A characteristic configuration of the present invention is that, in forming an atmospheric precooling means for precooling the atmospheric air to the condenser with the drain of the evaporator, a hollow body made of a highly water-containing material is arranged in the outside air supply path to the condenser. In addition, a water supply means is connected to the hollow body for supplying drain from the evaporator into the hollow body in a state where water droplets falling from the hollow body are suppressed, and the effects thereof are as follows. It is as follows.

[For production]

Condensate from the evaporator is supplied into the hollow body placed in the outside air supply path, with the supply amount adjusted so that water droplets do not fall from the hollow body, and a sufficient amount of condensate is supplied to the hollow body made of a highly water-containing substance. The atmosphere to be sent to the condenser is brought into contact with the hollow body, and the atmosphere is precooled as the condensate contained in the hollow body evaporates.

Therefore, there is no need to circulately supply drain to the hollow body, and the circulating water supply structure required in the prior art is eliminated, making it possible to sufficiently reduce equipment costs and operating costs.

In addition, since the condensate oozes out from inside the hollow body, the condensate can be contained sufficiently and evenly throughout the hollow body, and sufficient atmospheric precooling capacity can be reliably exerted throughout the hollow body. The atmospheric precooling capacity can be sufficiently increased, and the atmospheric precooling means can be downsized.

〔Effect of the invention〕

As a result, it has become possible to provide a refrigerator that has low equipment and operating costs, has a large atmospheric precooling capacity, and is excellent in both economic efficiency and refrigeration capacity.

〔Example〕

Next, an example will be shown with reference to FIGS. 1 to 4.

As shown in Fig. 1, inside the case (4) is a partition wall (13),
Due to (14), the indoor part (1) and the outdoor part (2)
, and is divided into duct parts (3).

As shown in Figures 1 and 2, the air passage formed in the indoor part (1) includes a pre-filter (5), a main filter (6), an indoor heat exchanger (7), and a dehumidifier ( 8) Arrange the blower (9) so that the former is on the upstream side, and arrange the compressor (11) and expansion valve (12) in a space separated from the air path by the partition wall (10). A compressor (11) is connected to one end of the heat exchanger (7), and an expansion valve (12) is connected to the other end.

As shown in Figures 1 and 3, an outdoor heat exchanger (15) and an exhaust fan (16) are installed in the air passage formed in the outdoor part (2).
The outdoor heat exchanger (15) is connected to the compressor (1
1) and an expansion valve (12) to form a compression heat pump.

The exhaust fan (16) is made up of four fans (1
6a) to (16d), and an outdoor heat exchanger (15
) is configured to uniformly supply air to the entire area to increase heat exchange capacity. As shown in Fig. 1, an indoor air passage (20) and an outdoor air passage (21) are defined by a partition wall (19) in the duct portion (3), and the indoor air passage (20) and the outdoor air passage A blower (22), (23) is installed at each entrance of the path (21).
), the outlet (24) of the indoor air passage (20) is connected to the air passage of the indoor part (1), and the outlet (25) of the outdoor air passage (21) is connected to the outdoor part (2). It is connected to the air passage.

In short, the exhaust duct h (26
) to the indoor air passage (20) of the duct part (3), and the air supply duct (27) connected to the air-conditioned space to the indoor part (1
), the atmosphere supply duct (28) is connected to the outdoor air passage (21) of the duct part (3), and the atmosphere discharge duct (29) is connected to the exhaust port of the outdoor part (2). connection,
The refrigerant is circulated between the indoor heat exchanger (7) and the outdoor heat exchanger (15) to cool or heat the space to be air-conditioned.

An atmospheric precooling means is provided to supply condensate generated as a result of air cooling in the indoor heat exchanger (7) to the atmosphere supplied to the outdoor heat exchanger (15) as precooling water, and this popular precooling means is structured as follows.

A water receiver (18) for collecting condensate flowing down from the indoor heat exchanger (7) is provided in the indoor part (1), and a porous A large number of pipes (31) made of highly water-containing materials such as sintered metal, foamed resin, and sponge are installed near the outdoor heat exchanger (15) and lined up horizontally. A pump (P) is installed in the pipe that supplies water from the receiver (18) to the pipe (31).

The amount of water supplied per hour by the pump (P) is calculated from all pipes (31
) is set to be the same amount as the amount of water that evaporates every once in a while from An automatic controller (C) is installed to operate the pipe (
Water supply means (P, C
, S) are formed.

In other words, the pipe (3
1) contains condensate sufficiently and evenly, evaporates the contained condensate upon contact between the pipe (31) and the outside air to pre-cool the outside air, and transfers the mist-free atmosphere to the outdoor heat exchanger (
15) is configured so that the refrigerating capacity can be increased by uniformly supplying it to the entire area.

[Another example]

Next, another embodiment will be described.

The present invention can also be applied to refrigerators that cool freezer compartments, refrigerator compartments, etc. Therefore, the heat exchanger that generates condensate is collectively referred to as the evaporator (7), and the heat exchanger that is supplied with pre-cooled air. are collectively referred to as the condenser (15).

Water supply devices of various shapes can be used in place of the pipe (31),
They are collectively referred to as a hollow body (31). The number and arrangement of the hollow bodies (31) can be changed as appropriate.

Water supply means (P) that supplies drain to the inside of the hollow body (31)
, C, S) can be changed as appropriate; for example, the evaporator (7) and water receiver (18) may be placed higher than the hollow body (31) so that water is supplied by the natural flow of drain. hollow body (31
) may be configured to suppress water droplets from falling.

Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of the drawing]

1 to 4 show embodiments of the present invention, FIG. 1 is an overall conceptual diagram, FIG. 2 is a view taken along the line II-II in FIG. [Arrow view, Figure 4 is IV- in Figure 3
FIG. FIG. 5 is a conceptual diagram of a conventional example. (7)...Evaporator, (15)...Condenser, (30)...Outside air supply path, (31)...
...Hollow body, (P, C, S) ...Water supply means.

Claims (1)

[Scope of Claims] A refrigerator provided with an atmospheric pre-cooling means for supplying drain generated in an evaporator (7) to the atmosphere supplied to a condenser (15) as pre-cooled water, the atmospheric pre-cooling means forming the atmospheric pre-cooling means. Then, the hollow body (31) made of a highly water-containing substance is placed in the condenser (1).
5), and the drain from the evaporator (7) is placed inside the hollow body (31) in such a manner that water droplets falling from the hollow body (31) are suppressed. Water supply means (P, C, S) for supplying water to the hollow body (
31) Refrigerator connected to.