JPH0583683U - Drain water treatment equipment for refrigerated showcases - Google Patents

Abstract

(57) [Abstract] [Purpose] The waste heat from the condenser is used more effectively to preheat the drain water and improve the evaporation capacity of the natural evaporation device. Even if the amount of drain water increases, the natural evaporation device Prevent it from overflowing. [Constitution] A drain water treatment apparatus for a refrigerating and refrigerating showcase, in which a drain water evaporator 1 for naturally evaporating drain water under the showcase main body and a condensing unit composed of a condenser 2, a blower 6 and a compressor 5 are arranged. In the above, the drain water receiving trays 3 and 8 are provided above and below the condenser 2, and a large number of water passage holes 3a are formed in the drain water receiving tray 3 on the upper side to form the drain water receiving trays 3 and 8.
The lower end of the drain hose 4 connected to the drain water drain port formed at the bottom of the showcase body is opened, and the drain water pipe 9 connected to the natural evaporator 1 is connected to the drain water receiving tray 8 below.
Connect to.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a drain water treatment device for a refrigeration showcase.

[0002]

[Prior Art]

 As is well known, freezer-refrigerated showcases with a refrigerator structure support the showcase body, which is composed of heat-insulating panels, with an underframe, and the space formed below the showcase body by this underframe is used as a machine room. As shown in FIG. 7, a condensing unit that is composed of a condenser 7, a blower 6, and a compressor 5 and forms a part of a refrigerating apparatus is arranged in this machine chamber.

The cooler, which is a part of the same refrigeration system, is arranged in the upper showcase body, but it is generated from defrosted water due to frost adhering to the cooler or products displayed in the showcase body. As a means for treating drain water such as moisture, a drain water drainage port is provided at the bottom of the showcase body, and a drain hose 4 is connected to the drainage port. As shown in FIG. 3, the drain water is exposed to the natural evaporator 1 adjacent to the condensing unit.

This natural evaporation device is one in which an evaporation cloth is hung vertically on a drain pan, and the drain water accumulated in the drain pan of the natural evaporation device from the showcase body through the drain port and the drain hose 4 is a capillary phenomenon. It is sucked up by the evaporation cloth, heated by the exhaust heat from the adjacent condensing unit, and evaporated into the air.

[0005]

[Problems to be solved by the device]

 If there is a large amount of water from the product or contained in the outside air, or if there is a large temperature difference between the inside and outside of the showcase body, such as during cooling operation in summer, the amount of frost that adheres to the cooler will increase. The amount of defrost water increases during defrost operation. As a result, the amount of drain water accumulated in the drain pan is much larger than the amount of drain water that is naturally evaporated by the evaporation cloth, and there is a risk that the drain water will overflow.

The object of the present invention is to eliminate the disadvantages of the conventional example, more effectively utilize the condenser to improve the evaporation capacity of the natural evaporator, and prevent the overflow of the drain water even if the amount of drain water increases. An object of the present invention is to provide a drain water treatment device for a refrigeration showcase.

[0007]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides a drainage for a refrigerating and refrigerating showcase in which a drain water evaporation device for spontaneously evaporating drain water and a condensing unit composed of a condenser, a blower, and a compressor are provided below the main body of the showcase. In the water treatment device, drain water trays are provided above and below the condenser, and a large number of water passage holes are formed in the drain water tray at the top to connect the drain water drain outlet formed at the bottom of the showcase body to the tray. Open the lower end of the drain hose and connect the drain water pipe that connects to the natural evaporator to the drain water pan below, or install the drain water pan on the top of the condenser to form the drain water at the bottom of the showcase body. The lower end of the drain hose connected to the drain port is opened in the drain water tray, and the drain water pipe connected to the natural evaporator is passed through the condenser to allow the drain water to flow. It is an summarized in that connected to the down water pan.

[0008]

[Action]

 According to the first aspect of the present invention, the drain water from the showcase body flows into the upper drain water tray, flows into the lower condenser through the water passage holes formed therein, and the condenser After being heated by, enter the drain water pan below. Therefore, the temperature of the drain water flowing from the lower drain water pan into the natural evaporator is high, and it is easy to evaporate.

According to the second aspect of the present invention, the drain water from the main body of the showcase flows into the upper drain water tray, and from there, passes through the drain water pipe into the condenser, and the natural evaporator to go into. Therefore, the temperature of the drain water flowing in here is high, and it is easy to evaporate.

[0010]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing a first embodiment of a drainage water treatment apparatus for a refrigerating / refrigerating showcase according to the present invention, and FIG. 2 is a front view showing the same as the conventional example shown in FIGS. 7 and 8. Are given the same reference numerals.

The drain water treatment apparatus of the present invention has the same overall structure as that of the conventional one, and the blower 6, the condenser 2, and the compressor 5 are sequentially arranged in parallel below the showcase body as a condensing unit forming a part of the refrigeration apparatus. Then, the natural evaporation device 1 is arranged adjacent to the compressor 5. In such a drain water treatment apparatus, drain water receiving trays 3 and 8 are provided above and below the condenser 2, respectively.

A large number of water passage holes 3 a are evenly formed across the entire surface of the drain water receiving tray 3 above, and the lower end opening of the drain hose 4 is exposed above the drain water receiving tray 3. Further, as shown in FIG. 4, a drain water pipe 9 communicating with the drain pan 1a of the natural evaporator 1 is opened at a side portion of the drain water receiving tray 8 below.

Next, the operation will be described. During the cooling operation, the refrigerant gas compressed to a high temperature and high pressure by the compressor 5 is sent to the condenser 2, so the temperature of the condenser 2 is high. Then, the drain water generated by the defrosting operation passes through the drain hose 4 and drops into the drain water receiving tray 3 on the upper side, and drops into the condenser 2 below through the water passage hole 3a formed here. The drain water 10 that has fallen into the condenser 2 flows down through a large number of fins 11 arranged around the refrigerant pipe 12 as shown in FIG. 3, during which heat is exchanged with the high temperature condenser 2 and added. Be warmed.

The drain water thus heated collects in the drain water receiving tray 8 arranged below the condenser 2 and flows from here to the drain pan 1 a of the natural evaporator 1 through the pipe 9. The air that has been sucked in by the blower 6 and that has been warmed through the condenser 2 and the compressor 5 is sent to this natural evaporator 1, and the drain water that has already been heated comes into contact with this warm air, so that drain water is generated. Evaporates easily.

FIG. 5 and FIG. 6 show a second embodiment, in which a drain water receiving tray 13 is provided on a part of the upper surface of the condenser 2, and a drain water pipe whose one end is open at a side portion of the drain water receiving tray 13. The middle of the pipe 9 was arranged in the condenser 2 in a meandering manner, and the other end of the pipe 9 was connected to the drain pan 1 a of the natural evaporator 1.

Also in this case, as in the case of the first embodiment, the drain water dropped from the drain hose 4 to the drain water receiving tray 13 flows into the pipe 9 and the condenser 2 in which the pipe 9 is arranged while passing through the drain water. Heat is exchanged with the heat from and heated. Then, the warmed drain water enters the drain pan 1a of the natural vaporizer 1 and is evaporated by the warm air sent from the blower 6 there.

[0017]

[Effect of the device]

 As described above, in the drain water treatment device of the freezing / refrigerating showcase of the present invention, since the drain water to be evaporated by the natural evaporation device is preheated by the condenser, it is easy to evaporate in the natural evaporation device and the evaporation capacity is increased. It is possible to prevent the drain water from overflowing from the natural evaporator even when the drain water amount is increased.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of a drain water treatment apparatus for a freezer-refrigerating showcase according to the present invention.

FIG. 2 is a front view showing a first embodiment of the drain water treatment apparatus for a refrigerating / freezing showcase of the present invention.

FIG. 3 is a perspective view of the upper portion of the drain water receiving tray showing the essential parts of the first embodiment of the drain water treatment apparatus for a refrigerating / freezing showcase according to the present invention.

FIG. 4 is a perspective view of the lower portion of the drain water receiving tray showing the essential parts of the first embodiment of the drain water treatment apparatus for a freezer-refrigerating showcase of the present invention.

FIG. 5 is a perspective view showing a second embodiment of the drain water treatment apparatus for a freezer-refrigerating showcase according to the present invention.

FIG. 6 is a front view showing a first embodiment of the drain water treatment apparatus for a freezer-refrigerating showcase of the present invention.

FIG. 7 is a perspective view showing a conventional example of a drain water treatment device for a refrigeration showcase.

FIG. 8 is a perspective view of a natural evaporation device in a conventional drain water treatment device for a refrigeration showcase.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Natural evaporator 1a ... Drain pan 2 ... Condenser 3 ... Upper drain water receiving tray 3a ... Water passage hole 4 ... Drain hose 5 ... Compressor 6 ... Blower 7 ... Condenser 8 ... Lower drain water receiving tray 9 ... Drain water Piping for water 10 ... Drain water 11 ... Fins 12 ... Refrigerant piping 13 ... Drain water pan

Claims (2)

[Scope of utility model registration request] 1. A drain water treatment device for a refrigerating and refrigerating showcase, comprising a drain water evaporation device for naturally evaporating drain water below a showcase body, and a condensing unit composed of a condenser, a blower, and a compressor. Drain water trays are provided above and below the condenser, and a large number of water passage holes are formed in the drain water tray above and the lower end of the drain hose that connects to the drain water drain port formed at the bottom of the showcase body is opened in the tray. A drain water treatment device for a freezer-refrigerating showcase, characterized in that the drain water pipe connected to the natural evaporator is connected to the drain water receiving tray below. 2. A drain water treatment device for a refrigerating and refrigerating showcase, comprising a drain water evaporation device for naturally evaporating drain water below the showcase body, and a condensing unit composed of a condenser, a blower, and a compressor. A drain water tray is provided on the top of the condenser, and the lower end of the drain hose connected to the drain water drain port formed on the bottom of the showcase body is opened in the drain water tray to condense the drain water pipe connected to the natural evaporator. A drain water treatment device for a refrigerating and refrigerating showcase, characterized in that the drain water treatment device is connected to the drain water tray through the inside of the container.