JPH04257682A - Drain water evaporation device - Google Patents

Abstract

PURPOSE:To reduce an installing space for a drain water evaporating device by a method wherein drain water recovered in a drain receptacle pan is efficiently evaporated and an amount of evaporation of drain water is increased. CONSTITUTION:Plate-like evaporating members 21 having an action of capillary tube in a heat exchanging manner with refrigerant pipes 12B of a condensor 12 are disposed between fins 12A of a plate-fin type condensor 12. A drain receptacle pan 22 for receiving lower parts of the evaporating members 21 is disposed below the fins 12A and the evaporating members 21.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drain water evaporator used in refrigerators, low-temperature showcases, etc.

0002

BACKGROUND OF THE INVENTION A conventional drain water evaporator of this type has an evaporating member made of a hydrophilic porous plate disposed in a drain pan, which is connected to a condenser and It is placed downstream of a blower fan, and the drain water is evaporated by the ventilation of the blower fan.

0003

[Problems to be Solved by the Invention] Since such a drain water evaporator relies on ventilation from a blower fan, it has not been possible to expect a significant effect of evaporating the drain water. Moreover, there was also the problem of space for installing the drain water evaporation device.

In view of the above, the present invention provides a drain water evaporator that efficiently evaporates drain water collected in a drain tray and also solves the problem of installation space.

[0005]

[Means for Solving the Problems] The present invention provides a plate-fin type condenser, a plate-shaped evaporation member having capillary action disposed between the fins of the condenser for heat exchange with the condenser, and A drain water evaporator is constituted by the fins and a drain tray disposed below the evaporating member and receiving at least the lower part of the evaporating member.

[0006]

According to the present invention, since the heat of the condenser can be used directly, drain water can be efficiently evaporated, and the amount of evaporation of drain water can be increased. Furthermore, since the drain water evaporator is configured to include a condenser, the installation space can be reduced.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the present invention will be described below with reference to the drawings. FIG. 1 is a longitudinal cross-sectional view of the drain water evaporator, FIG. 2 is a perspective view of the drain water evaporator, FIG. 3 is a perspective view of the evaporation member, and FIG.
is a vertical cross-sectional view of a showcase equipped with a drain water evaporator;
FIG. 5 shows a sectional view of the machine room of the showcase equipped with a drain water evaporator.

First, the general structure of the refrigerated showcase 2 equipped with the drain water evaporator 1 of the present invention will be explained.
3 is a lighting room, 4 is a storage room, 5 is a cooling room, and 6 is a machine room, which are formed in order from the top. The lighting room 3 is equipped with a fluorescent lamp 7 for illuminating the storage compartment 4, the storage compartment 4 is equipped with a shelf 8, and the cooling compartment 5 is equipped with a plate fin type evaporator 9 and a cold air circulation blower 10. Machine room 6
A refrigerant compressor 11 constituting a refrigeration cycle together with the evaporator 9, a plate fin condenser 12 forming a part of the constituent elements of the drain water evaporator 1 of the present invention, and a blower 13 are disposed. There is. Further, a filter 14 is disposed on the suction side of the condenser 12.

A cold air outlet 16 is formed at one end of a partition plate 15 that vertically partitions the storage chamber 4 and the cooling chamber 5, and a cold air suction port 17 is formed at the other end. Therefore, the cold air heat exchanged in the evaporator 9 is transferred to the blower 1.
After being forcedly circulated by 0 and supplied to the storage chamber 4 from the blow-off port 16, it returns to the cooling chamber 5 from the suction port 17. In addition, a drain pipe 1 protruding into the machine room 6 is provided on the bottom wall of the cooling chamber 5.
8 is provided, and by connecting a flexible drain hose 19 to the lower end of the drain pipe 18, drain water 20 dripped from the evaporator 9 by defrosting is guided to the drain water evaporator 1. ing.

As shown in detail in FIGS. 1 and 2, the drain water evaporator 1 includes the plate-fin type condenser 1.
2, and a plate-shaped evaporation member 21 having capillary action and rigidity.
and a drain tray 22.

Among these, the plate fin type condenser 12 is composed of a plurality of fins 12A, a refrigerant pipe 12B perpendicular to the fins 12A, and a pair of left and right tube plates 12C supporting both ends of the refrigerant pipe 12B. The evaporation member 21 uses, for example, Univex (trade name), which uses a nonwoven fabric such as polyester fiber as a base material, heat-cures fine particulate phenol to this base material as a fixing agent, and further applies hydrophilic After imparting properties and soaking it in an alcohol-based solvent, it is dried. The evaporation member 21 is spaced apart from the fins 12A of the condenser 12 and arranged alternately with the fins 12A. Specifically, as shown in FIG. 3, the evaporation member 21 is formed with an insertion opening 23 through which the refrigerant pipe 12B is inserted, and the fins 12A and the evaporation member 21 are placed in a box jig (not shown).
are arranged alternately, the tube plates 12C are arranged on the outermost side, and the refrigerant tubes 12B are inserted through these, and then the refrigerant tubes 12B are expanded, whereby the evaporation member 21 is firmly fixed to the refrigerant tubes 12B, and is substantially The structure is essentially integrated with the condenser 12.

The drain tray 22 is disposed below the fins 12A and the evaporating member 21. At this time, fin 12
A and the evaporation member 21 are placed in the drain tray 2 so that they are immersed in the drain water 20 collected in the drain tray 22.
2 receives the fin 12A and the lower part of the evaporation member 21. Furthermore, the drain tray 22 can be mounted by supporting its rear bottom surface on a support stand 24 as shown in FIGS. 4 and 5, and fixing the front part of its upper edge flange 22A to each tube plate 12C. It can be attached to the metal fittings 24 using decorative screws 25. Therefore, the drain tray 22 can be removed by removing the cosmetic screw 25 and pulling it toward you. The lower end of the flexible drain hose 19 is placed inside this drain tray 22. At this time, the flexible drain hose 19 extends into the drain tray 22 through a hole 27 formed in the fan case top plate 26 extending to the condenser 12.

In the above configuration, the drain water 20 collected in the drain tray 22 is sucked up by the evaporating member, and since the evaporating member 21 is fixed to the refrigerant pipe 12B, this heat is utilized extremely efficiently. It will be evaporated into In addition, if heat exchange is performed between the fins 12A and the drain water 20 as in the embodiment, the amount of evaporation of the drain water 20 can be further increased, and the condenser 1
The heat dissipation effect (2) is also improved. In addition, an evaporation effect due to ventilation from the blower 13 can be expected. Furthermore, the filter 14 for the condenser 12 can effectively prevent dust from adhering to the evaporation member 21.

[0014]

Effects of the Invention The drain water evaporator according to the present invention directly utilizes the heat of the condenser to evaporate the drain water collected in the drain tray, so that the amount of evaporation of the drain water can be significantly increased.

Furthermore, since the drain water evaporator includes a condenser, the space for installing the evaporator and the drain tray can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view of a drain water evaporator.

FIG. 2 is a perspective view of a drain water evaporator.

FIG. 3 is a perspective view of the evaporation member.

FIG. 4 is a longitudinal sectional view of a showcase equipped with a drain water evaporator.

FIG. 5 is a sectional view of a machine room of a showcase equipped with a drain water evaporation device.

[Explanation of symbols]

1 Drain water evaporation device 12 Plate fin condenser 12A fin 21 Evaporation member 22 Drain saucer

Claims (1)

[Claims] 1. A plate-fin type condenser, a plate-shaped evaporation member having capillary action disposed between fins of the condenser for heat exchange with the condenser, and disposed below the fins and the evaporation member. 1. A drain water evaporating device, characterized in that the drain water evaporating device is constituted by a drain tray that receives at least a lower part of the evaporating member.