JP2001208462A - Showcase - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a showcase wherein drain of a vapor pan is prevented from overflowing from the pan. SOLUTION: A float switch 61d is turned on to light an alarm lamp, when inflow drain into a lower vapor pan 61 becomes too much to reach a prefixed level of the pan 61. The alarm lamp informs a showcase maintenance man of necessity for a treatment of the drain. The person in recognition of the alarm lamp removes a stop 61c for a drain outlet 61b to lead the drain into a receptacle pan 62, which is taken out by the maintenance man from the front of the showcase to collect the water of the pan 62.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a showcase provided with a cooling device used for, for example, displaying products in a supermarket or a convenience store.

[0002]

2. Description of the Related Art Conventionally, as this type of showcase,
2. Description of the Related Art It is known that a cooler and a blower for a cooler are provided in a ventilation path leading to a product storage section, and a compressor, a condenser and a blower for cooling the condenser are provided in a machine room. In this showcase, the drain water discharged from the cooler at the time of cooling is stored in a drain tank provided in the machine room, and the drain water in the tank is periodically drained to the outside to perform drain water treatment. Things are common. However, the showcase using the drain tank has a drawback that the drain tank must be frequently drained because all generated drain water is collected by the drain tank.

Therefore, as described in, for example, JP-A-7-133977, a plurality of evaporating plates for absorbing drain water by capillary action are provided on an evaporating dish for receiving drain water, and each evaporating plate absorbs the drain water. A showcase has been proposed in which drain water is evaporated.

[0004]

However, in the showcase having the plurality of evaporating plates, all of the generated drain water cannot be evaporated, and the drain water overflows from the evaporating dish, and the showcase is drained by the drain water. There is a problem that the inside and the periphery of the showcase may be stained.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a showcase in which drain water in an evaporating dish does not overflow.

[0006]

In order to achieve the above object, according to the present invention, there is provided a cooling device having a product storage portion provided in a showcase main body and a cooler for cooling the inside of the product storage portion. And a heating means for receiving the drain water generated from the cooler and having an outlet for discharging the drain water exceeding a predetermined water level, and heating the drain water in the upper evaporation dish. A lower evaporating dish having a discharge port for receiving the drain water discharged from the upper evaporating dish and discharging the drain water; a plurality of evaporation promoting plates for absorbing and evaporating the drain water in the lower evaporating dish; A drain tray that receives drain water discharged from the tray and that can be freely inserted into and removed from the showcase body. As a result, the drain water flowing into the upper evaporating dish is heated by the heating means, and the heated drain water flows into the lower evaporating dish via the drain port. The drain water flowing into the lower evaporating dish is absorbed by each evaporation promoting plate and evaporates from the surface of each evaporation promoting plate. The drain water in the lower evaporating tray is discharged to the drain tray via the drain port, and the drain water in the drain tray is collected outside the showcase by a showcase maintenance worker.

According to a second aspect of the present invention, in the showcase of the first aspect, an opening / closing means for arbitrarily opening / closing a drain port of the lower evaporating dish is provided. Thus, when the amount of generated drain water is small, the drain port of the lower evaporating dish is closed, and discharge of the drain water to the drain receiving tray is regulated.

According to a third aspect of the present invention, in the show case of the second aspect, the water level rise detecting means for detecting that the drain water of the lower evaporating dish has exceeded a predetermined water level, and the drain water is detected by the water level rise detecting means. Warning means for issuing a predetermined warning when it is detected that the water level exceeds a predetermined level. Thus, when the drain water in the lower evaporating dish exceeds a predetermined water level, a warning is issued from the warning means.

[0009]

1 to 6 show an embodiment of a showcase according to the present invention. FIG. 1 is a perspective view showing the appearance of the showcase, FIG. 2 is a side sectional view of the showcase, and FIG. 4 is a side sectional view of the drain water evaporator, FIG. 5 is a perspective view of an evaporation promoting plate, and FIG. 6 is an exploded perspective view thereof.

This showcase comprises a showcase body 1 having an open front, a plurality of upper and lower product shelves 2 mounted in the showcase body 1, a bottom side, a back side and an upper side in the showcase body 1. Ventilation path 3 formed along
And a cooler 4 disposed in the ventilation path 3, a machine room 5 provided below the bottom side ventilation path 3, and a drain water evaporator 6 disposed in the machine room 5. Body 1
The air taken into the ventilation passage 3 from the air intake port 1a provided at the lower end of the front opening of the vehicle is cooled by the cooler 4, and the air is discharged from the air discharge port 1b provided at the upper end of the front opening of the showcase body 1. It discharges.

The showcase body 1 includes a heat insulating wall 7 covering the upper, rear, bottom, and front lower portions thereof, an upper plate 8 covering a lower portion of the upper heat insulating wall 7, and a rear heat insulating wall 7. It has a back plate 9 covering the front and a bottom plate 10 covering the bottom side heat insulating wall 7. The ventilation path 3 is formed between the heat insulating wall 7, the top plate 8, the back plate 9 and the bottom plate 10. ing. Further, the showcase body 1 is an outer panel 1 that covers the rear side of the back side heat insulating wall 7.
1 and a heat exhaust duct 1 c between the heat insulating wall 7 and the outer plate 11.
Is formed. Further, transmission plates 12 are provided on both side surfaces of the showcase main body 1, and a product storage portion 1d surrounded by the transmission plates 12, the top plate 8, the back plate 9 and the bottom plate 10 is formed in the showcase main body 1. ing. Furthermore, a warning lamp 1e for warning the outflow of drain water from the drain water evaporator 6 and a thermometer 1f indicating the temperature of the product storage room 1d are visible from the front of the showcase on the front surface of the upper heat insulating wall 7. Is provided.

Each of the product shelves 2 has a support 2a disposed on the left and right of the back plate 9, and a bracket 2b attached to each support 2a.
, And are displayed through the front opening of the showcase body 1.

The ventilation passage 3 houses a blower 3a at its lower part, and a cooler 4 is provided on the back side thereof. Also,
On its bottom side, a drain water outlet 3b penetrating the heat insulating wall 7
The drain water generated by the cooler 4 is guided to the drain water evaporator 6 in the machine room 5 below the drain water outlet 3b.

The machine room 5 is provided with a drain water evaporator 6, a condenser blower 12, a condenser 13, a compressor 14 and a drain hose 15, and the blower 12, the condenser 13 and the compressor 14
Is fixed to the bottom of the machine room 5. The drain hose 15 has one end connected to the drain water discharge port 3 b and the other end disposed above the drain water evaporator 6. Also,
The front panel 5a of the machine room 5 is detached during maintenance.

The drain water evaporator 6 includes an upper evaporating dish 60 for receiving the drain water from the cooler 4, a lower evaporating dish 61 for receiving the drain water discharged from the upper evaporating dish 60, and an upper evaporating dish 60 or A drain receiving tray 62 for receiving the drain water discharged from the lower evaporating dish 61; a refrigerant pipe 63 for heating the drain water in the upper evaporating dish 60; and a plurality of vertical evaporators for absorbing the drain water in the lower evaporating dish 61. Promotion plate 64 and upper evaporation promotion plate 6
5, a plurality of evaporating plate supports 66 engaged with the side portions of the respective vertical evaporating plates 64, and a blower 67 for drain water evaporation that circulates air on the surfaces of the evaporating plates 64 and 65. .

The upper evaporating dish 60 has an open upper surface, and a refrigerant pipe 63 is provided therein. The upper evaporating dish 6
0 has a cylindrical outlet 60a at the bottom, and the outlet 60a
A drain water inlet 60b is formed above the refrigerant pipe 63 of the upper evaporating dish 60, and a drain water outlet 60c is formed below the bottom of the upper evaporating dish 60. Further, the upper evaporating dish 60 has an emergency drain port 60d on the side surface, and the emergency drain port 60d is provided with a detachable plug 60e.

The lower evaporating dish 61 is located below the upper evaporating dish 60, has an open upper surface, and has therein a vertical evaporation promoting plate 64 and an upper evaporation promoting plate 65 therein. Further, a plate heater 61a is provided at a lower portion of the bottom of the lower evaporating dish 61.
Is provided to heat the drain water accumulated in the lower evaporating dish 61. Further, the lower evaporating dish 61 has a discharge port 61b on a side surface, and the discharge port 61b is provided with a stopper 61c as a detachable opening / closing means. Further, the lower evaporating dish 61 is provided with a float switch 61d which detects that the drain water has reached a predetermined water level and is connected to a warning lamp 1e.

The drain tray 62 is located below the lower evaporating tray 61, has an open upper surface, and is supported on the bottom surface of the machine room 5 so as to be movable forward. That is, when the front plate 5a of the machine room 5 is removed, the drain pan 62 can be freely taken in and out of the outside of the showcase.

The refrigerant pipe 63 is provided so as to meander in the upper evaporating dish 60, and a high-temperature refrigerant flowing from the compressor 14 flows through the refrigerant pipe 63.

Each of the evaporation promoting plates 64 and 65 is a substance capable of absorbing moisture by a capillary action. For example, a nonwoven fabric such as polyester fiber is used as a base material, and fine phenol is thermally cured on the base material to form a fixing agent. Further, after being immersed in an alcohol-based solvent with imparting hydrophilicity, a product dried is used.

Each vertical evaporation promoting plate 64 is formed in the shape of a rectangular flat plate, and has a notch 6 at its upper end for engaging with the upper evaporation promoting plate 65.
4a and a notch 64b above and below both ends where the evaporating plate support 66 can be inserted. Each vertical evaporation promotion plate 6
Numerals 4 are inserted into the evaporating plate support 66 in parallel at a predetermined interval, and are arranged such that the lower end of each vertical acceleration plate 64 contacts the bottom surface in the lower evaporating dish 61. Here, the two outer vertical evaporation promoting plates 64 are provided upside down in the vertical direction.
The two vertical evaporation promoting plates 64 have a notch 64a at the lower end.

The upper evaporation promoting plate 65 is formed in a rectangular flat plate shape, and is provided substantially horizontally above each vertical evaporation promoting plate 64. The upper evaporation promoting plate 65 has a flange 65a extending upward at a length equal to the depth of the notch 64a on both sides orthogonal to the vertical evaporation promoting plates 64. Upper evaporation promoting plate 65
Is removably inserted between two outer vertical evaporation promoting plates 64. In this case, the upper evaporating dish 60 and the lower evaporating dish 61 are arranged so that the drain water flowing out from the drain water outlet 60c falls on the upper evaporation promoting plate 65.

Each of the evaporating plate supports 66 is provided with a corresponding one of the vertical evaporation promoting plates 6.
The vertical evaporation promoting plate 64 is formed in a flat plate shape extending in a direction perpendicular to the vertical direction 4 and is engaged with both sides of each vertical evaporation promoting plate 64 in two upper and lower stages. The evaporating plate support 66 has a large number of grooves 66 provided at predetermined intervals.
a, and each vertical evaporation promoting plate 64 is inserted into each groove 66a.

A blower 67 for drain water evaporation is provided on the side of the drain water evaporator 6 so as to be detachable.
And air is blown into the lower evaporating dish 61. As shown in FIG. 4, the direction in which the air flows through the blower 67 is parallel to each of the evaporation promoting plates 64 and 65 (in the direction of the dashed arrow) so that the air is blown to the surfaces of all the evaporation promoting plates. It has become.

In the showcase constructed as described above, the low-temperature drain water generated in the ventilation path 3
Through the drain water outlet 3b and the drain hose 15 to the upper evaporation dish 60 of the drain water evaporator 6. Upper evaporation dish 6
The drain water in 0 is heated by the refrigerant pipe 63 to evaporate. Here, since the air in the upper evaporating dish 60 is circulated by the blower 67, the drain water evaporates into the air efficiently. When a large amount of drain water flows, the level of the drain water in the upper evaporating dish 60 becomes higher than that of the drain water inlet 60b, and the heated drain water flows through the outlet 60a to the upper evaporation accelerating plate of the lower evaporating dish 61. Fall to 65.

The drain water dropped on the upper evaporation promoting plate 65 is absorbed by the upper evaporation promoting plate 65 by capillary action and evaporates from the surface thereof. If a large amount of drain water falls, each vertical evaporation promoting plate 64
Drain water is also absorbed, and the drain water evaporates also from this surface. At this time, in addition to the fact that the drain water is heated by the refrigerant pipe 63, each of the evaporation promoting plates 6
Since the air around 4, 65 is circulating, the drain water evaporates efficiently from the evaporation promoting plates 64, 65 into the air.
Here, when all the drain water has not been absorbed by the evaporation promoting plates 64 and 65, the drain water accumulates in the lower evaporation dish 61. The drain water accumulated in the lower evaporation dish 61 is heated by the plate heater 61a and evaporated.

When a large amount of drain water flows into the lower evaporating dish 61 and the drain water reaches a predetermined water level of the lower evaporating dish 61, the float switch 61d is turned on and the warning lamp 1 is turned on.
e lights up. Thus, the maintenance worker of the showcase can be made aware that the drain water needs to be treated. The maintenance worker confirming the lighting of the warning lamp 1e removes the plug 61c of the outlet 61b, and the drain water accumulated in the lower evaporating dish 61 is guided to the drain tray 62. Thereafter, the drain tray 62 is taken out from the front of the showcase by a maintenance worker, and after drain water in the drain tray 62 is collected, the drain tray 62 is returned to the original position.

As described above, according to the showcase of the present embodiment, the drain port 61b and the drain pan 62 are provided so that the drain water accumulated in the lower evaporating pan 61 can be drained to the outside. Even when a large amount of drain water is generated during the season, the drain water does not overflow from the evaporating dish, and does not stain the inside and surroundings of the showcase.

A stopper 61c is provided at the discharge port 61b to prevent the drain water from flowing into the drain pan 62 when the amount of generated drain water is small, so that the operation of collecting the drain water in the drain pan 62 can be omitted. Can be. When drain water accumulates in the lower evaporating dish 61, the stopper 61c is removed to drain the drain water from the lower evaporating dish 61 to the drain receiving tray 62, so that the drain water overflows from the lower evaporating dish 61. It does not pollute the inside and surroundings of the showcase.

The float switch 6 of the lower evaporating dish 61
Since the warning lamp 1e is turned on when 1d is turned on, the maintenance worker of the showcase is made aware that it is necessary to discharge the drain water in the lower evaporating dish 61, and the maintenance worker promptly closes the stopper 61c. Is removed. Therefore, the drain water does not overflow from the lower evaporating dish 61 and stain the inside and surroundings of the showcase.

After the low-temperature drain water generated in the cooler 4 is heated by the refrigerant pipe 63, the heated drain water is absorbed by the evaporation promoting plate 64. It can be significantly improved.

Further, since the refrigerant pipe 63 through which the high-temperature refrigerant flows is used as the heating means, there is no need to newly provide a heating device for heating the drain water, and the upper evaporating dish 60 has a simple structure. The manufacturing cost can be reduced.

Since the upper evaporation promoting plate 65 is provided,
The contact area of the evaporation promoting plate 64 with the air required for the evaporation of the drain water can be increased, and the evaporation ability of the drain water can be improved. Furthermore, the vertical evaporation promoting plates 64 are connected at the upper end, so that the evaporation promoting plate 64 can uniformly absorb the drain water.

The drain water in the upper evaporating dish 60 is dropped onto the upper evaporation promoting plate 65 through the discharge port 60a, and the drain water flowing in from the upper evaporating dish 60 side is supplied to each vertical evaporation promoting plate 64.
The drain water that is absorbed from above and is stored in the lower evaporating dish 61 is absorbed from below, so that each vertical evaporation promoting plate 6
Drain water can be efficiently contained in 4b, and the evaporation ability of drain water can be improved. Further, since all the dust contained in the drain water adheres to the upper evaporation promoting plate 65, the other evaporation promoting plates 64 can be kept clean,
The maintenance of the drain water evaporator 6 is performed by the upper evaporation promotion plate 6
It is only necessary to clean or replace 5 and maintenance can be easily performed.

Further, since an air blower 67 is provided to allow air to flow inside the upper evaporating dish 60 and the lower evaporating dish 61, the drain water can be efficiently evaporated into the air.

An emergency drain port 60 is provided in the upper evaporating dish 60.
e and the stopper 60f, for example, the upper evaporation promoting plate 6
At the time of cleaning or replacement of 5, the drain water in the upper evaporating dish 60 can be directly discharged to the drain receiving tray 62 by removing the stopper 60f.

In the above embodiment, the upper evaporating dish 6
Although the case where two evaporating dishes, 0 and the lower evaporating dish 61 are provided, is shown, three or more evaporating dishes are provided, the refrigerant pipe 63 is provided in the upper evaporating dish, and each evaporating dish is provided in the lower evaporating dish. The promotion plate 64 and the discharge port 61b may be provided.

In the above embodiment, the warning lamp 1e is turned on when the float switch 61d is turned on. However, an alarm buzzer is provided instead of the warning lamp 1e, and when the float switch 61d is turned on. An alarm may be sounded.

In the above-described embodiment, the drain water in the upper evaporating dish 60 is heated by the refrigerant pipe 63. However, the upper evaporating dish 60 is provided with a plate heater to heat the drain water. You may do so.

In the above-described embodiment, only the upper evaporation promoting plate 65 is provided in the substantially horizontal direction. However, as shown in FIG.
An intermediate evaporation accelerating plate 68 may be provided at the center of 4. In this case, since the contact area between the drain water and the air increases, the evaporation ability of the drain water can be further improved.

Further, in the above-described embodiment, the case where the upper evaporation promoting plate 65 is provided is shown, but this is not always necessary, and the function and effect of the above-described embodiment can be obtained without this. .

In the above embodiment, the case where the drain water falls from the discharge port 60a of the upper evaporating dish 60 to the upper evaporating promotion plate 65 has been described. It may be.

[0043]

As described above, according to the showcase of the first aspect, the drain pan is provided so that the drain water accumulated in the lower evaporating pan can be drained to the outside. Even if a large amount of drain water is generated,
The drain water does not overflow from the lower evaporating dish and contaminate the inside and surrounding of the showcase.

According to the showcase of claim 2,
In addition to the effect of claim 1, the amount of drain water discharged to the drain tray can be adjusted according to the amount of drain water generated. Therefore, when the amount of drain water generated is small, the drain water is drained to the drain tray. Is prevented from flowing in, and the work of collecting drain water accumulated in the drain pan can be omitted.

According to the third aspect of the present invention,
In addition to the effect of claim 2, when the drain water in the lower evaporating dish exceeds a predetermined water level, a warning is issued from the warning means, so that the drain water in the lower evaporating dish is discharged to the showcase maintenance worker. Recognizing the necessity, the drainage water is immediately discharged to the drain pan by the maintenance worker. Therefore, the drain water does not overflow from the lower evaporating dish, and does not stain the inside and surroundings of the showcase.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a showcase showing an embodiment of the present invention.

FIG. 2 is a side sectional view of a showcase.

FIG. 3 is a perspective view of a drain water evaporator.

FIG. 4 is a side sectional view of a drain water evaporator.

FIG. 5 is a perspective view of an evaporation promoting plate.

FIG. 6 is an exploded perspective view of an evaporation promoting plate.

FIG. 7 is a perspective view of an evaporation promoting plate.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Showcase main body, 1e ... Warning lamp, 4 ... Cooler, 6 ... Drain water evaporator, 14 ... Compressor, 60 ... Upper evaporating dish, 60a ... Drain port, 61 ... Lower evaporating dish, 61b ... Drain port, 61c: plug, 63: refrigerant line, 64: vertical evaporation promoting plate, 65: upper evaporation promoting plate.

Claims (3)

[Claims] 1. A showcase comprising: a product storage section provided in a showcase main body; and a cooling device having a cooler for cooling the inside of the product storage section. An upper evaporating dish having an outlet for discharging the drain water exceeding the water level; a heating means for heating the drain water in the upper evaporating dish; and receiving the drain water discharged from the upper evaporating dish and discharging the drain water A lower evaporating dish having an outlet, a plurality of evaporation promoting plates for absorbing and evaporating drain water in the lower evaporating dish, receiving drain water discharged from the lower evaporating dish, and being provided so as to be able to be taken in and out of the showcase body. A showcase comprising a drain pan. 2. The showcase according to claim 1, further comprising an opening / closing means for arbitrarily opening and closing a drain port of the lower evaporating dish. 3. A water level rise detecting means for detecting that the drain water of the lower evaporating dish has exceeded a predetermined water level, and a predetermined warning when the water level rise detecting means detects that the drain water has exceeded the predetermined water level. 3. A showcase according to claim 2, further comprising warning means for issuing a warning.