JP2911252B2 - Drain water evaporator - Google Patents

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 for refrigerators, low-temperature cases, and the like.

[0002]

2. Description of the Related Art In a conventional drain water evaporator of this type, as shown in, for example, Japanese Patent Application Laid-Open No. Hei 2-13778, an evaporating member composed of a hydrophilic porous plate is provided in a drain pan, and this is provided with a condenser and a condenser. It is arranged downstream of the blower fan, and drain water is evaporated by ventilation of the blower fan.

[0003]

In such a drain water evaporator, the effect of drain water evaporation could not be expected so much because of the ventilation of the blower fan. In addition, there is a problem in space for installing a drain water evaporator.

SUMMARY OF THE INVENTION In view of the foregoing, the present invention provides a drain water evaporating apparatus which efficiently evaporates drain water collected in a drain pan and solves the problem of installation space.

[0005]

SUMMARY OF THE INVENTION The present invention provides a plate fin type condenser comprising a plurality of fins, a refrigerant pipe orthogonal to the fins, and a pair of left and right tube plates supporting both ends of the refrigerant pipe. The drain water evaporating device is formed by a plate-shaped evaporating member having a capillary action and rigidity having a cutout portion fitted to the refrigerant pipe, and a drain pan disposed below the evaporating member and receiving the lower part of the evaporating member. The upper part of the evaporating member is pressed against the lower part of the fin.

[0006]

According to the present invention, since the heat of the condenser can be directly used, the drain water can be efficiently evaporated, and the amount of evaporation of the drain water increases. Further, since the drain water evaporator is configured to include the condenser, the installation space can be reduced. Furthermore, since the notch formed in the evaporating member is fitted to the refrigerant pipe of the condenser, the evaporating member can be easily attached. Furthermore, the upper part of the evaporating member is pressed against the lower part of the fin to make the contact between the two more dense, and the heat of the fins can be directly transmitted to the evaporating member by integrating the evaporating member with the condenser substantially. The drain water can be evaporated very efficiently.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a longitudinal 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 an evaporating member, and FIG.
FIG. 5 is a perspective view of a rod member for attaching an evaporating member, FIG. 5 is a longitudinal sectional view of a case having a drain water evaporator, and FIG. 6 is a sectional view of a machine room of the case having a drain water evaporator. Is shown.

First, the general configuration of a refrigerated case 2 provided with the drain water evaporator 1 of the present invention will be described.
Reference numeral 3 denotes an illumination room, 4 denotes a storage room, 5 denotes a cooling room, and 6 denotes a machine room, which are formed in order from the top. The lighting room 3 is provided with a fluorescent lamp 7 for illuminating the storage room 4, the storage room 4 is provided with a shelf 8, and the cooling room 5 is provided with a plate-fin evaporator 9 and a cool air circulation blower 10. And machine room 6
A refrigerant compressor 11 which forms a refrigeration cycle together with the evaporator 9, a plate fin type condenser 12 which constitutes a part of the components of the drain water evaporator 1 of the present invention, and a blower 13 are provided. I have. A filter 14 is provided on the suction side of the condenser 12.

[0010] A cold air outlet 16 is formed at one end of a partition plate 15 for vertically dividing the storage chamber 4 and the cooling chamber 5, and a cold air inlet 17 is formed at the other end. Therefore, the cold air exchanged in the evaporator 9 is supplied to the blower 1
After being forcibly circulated by the pressure of 0 and supplied to the storage chamber 4 from the outlet 16, it returns to the cooling chamber 5 from the suction port 17. A drain pipe 18 is provided on the bottom wall of the cooling chamber 5 so as to protrude into the machine chamber 6. A flexible drain hose 19 is connected to a lower end of the drain pipe 18 to evaporate by defrosting. The drain water 20 dropped from the vessel 9 is guided to the drain water evaporator 1.

The drain water evaporator 1 comprises the plate fin condenser 12, a plate-shaped evaporating member 21 having a capillary action and rigidity, and a drain pan 22.

Among them, the plate fin type condenser 12
Is composed of a plurality of fins 12A, a refrigerant tube 12B orthogonal to the fins 12A, and a pair of left and right tube plates 12C supporting both ends of the refrigerant tube 12B. The evaporating member 21 uses Univex (trade name) as an example. This is based on a non-woven fabric such as polyester fiber as a base material, and fine-grained phenol is thermally cured on the base material to form a fixing agent. And then dried.

The evaporating member 21 has a plate shape as shown in FIG. 3, and has a pair of cutouts 23 formed at its upper edge to be fitted to the front and rear refrigerant pipes 12B located at the lowermost side. .
The notch 23 has a slightly smaller opening than the diameter of the refrigerant tube 12B in order to prevent the notch 23 from dropping from the refrigerant tube 12B. Many such evaporating members 21 are prepared and can be attached to the refrigerant pipe 12B with one touch. 4 is made of the same material as the evaporating member 21, and is inserted between the evaporating member 21 and the fin 12A.
The attachment of the evaporating member 21 is further strengthened, and the upper part of the evaporating member 21 is pressed against the lower part of the fin 12A to make the contact between the two more dense. As a result, the evaporating member 21 has a configuration substantially integrated with the condenser 12.

The drain pan 22 is provided below the fin 12A and the evaporating member 21. At this time, the evaporating member 2
1 is soaked in the drain water 20 collected in the drain pan 22 so that the drain pan 22
Is to accept the lower part. Further, the drain pan 22
5 and 6, the rear bottom surface is supported on a support 25 as shown in FIGS. 5 and 6, and the front end of the upper edge flange 22A is attached to a mounting bracket 26 fixed to each tube sheet 12C by a decorative screw 27. Can be mounted using Therefore, the drain pan 22 can be removed by removing the decorative screw 27 and pulling it forward. The lower end of the flexible drain hose 19 is placed in the drain pan 22 and placed. At this time, the flexible drain hose 19 extends into the drain pan 22 through a hole 29 formed in the fan case top plate 28 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. The drain water 20 is formed by the evaporating member 21 and the refrigerant pipe 12.
Since it is fitted to B and is in contact with the fins 12A, the heat of the condenser 12 allows the vapor to be evaporated very efficiently.

[0015]

The drain water evaporator according to the present invention evaporates the drain water collected in the drain pan by directly using the heat of the condenser, so that the amount of drain water evaporated can be significantly increased.

Further, since the drain water evaporator includes the condenser, the space for installing the evaporating member and the drain pan can be reduced.

Further, since the notch formed in the evaporating member is fitted to the refrigerant pipe of the condenser, the evaporating member can be easily mounted. Furthermore, the upper part of the evaporating member is pressed against the lower part of the fin to make the contact between the two more dense, and the heat of the fins can be directly transmitted to the evaporating member by integrating the evaporating member with the condenser substantially. The drain water can be evaporated very efficiently.

[Brief description of the drawings]

FIG. 1 is a longitudinal 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 an evaporating member.

FIG. 4 is a perspective view of a rod member for attaching an evaporating member.

FIG. 5 is a longitudinal sectional view of a case provided with a drain water evaporator.

FIG. 6 is a sectional view of a machine room of a showcase provided with a drain water evaporator.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Drain water evaporator 12 Plate fin type condenser 12A Fin 21 Evaporation member 22 Drain tray 23 Notch

Claims (1)

(57) [Claims] 1. A plate fin type condenser comprising a plurality of fins, a refrigerant tube orthogonal to the fins, and a pair of left and right tube plates supporting both ends of the refrigerant tube, and an upper end fitted to the refrigerant tube. A plate-shaped evaporating member having a capillary action and rigidity with a notch formed therein, and disposed below the evaporating member;
A drain water evaporating apparatus comprising a drain tray for receiving a lower portion of the evaporating member, wherein an upper portion of the evaporating member is pressed against a lower portion of the fin .