JPH04344088A - Drain device for refrigerator-containing showcase - Google Patents

Abstract

PURPOSE:To eliminate the need for any special water draining operation by a method wherein a container for receiving drain water is provided on the bottom of a case, a water-absorbing, air permeating cylindrical body retained on a windmill is provided in this container with its lower part kept under water therein and the water is vaporized by the rotation of the cylindrical body. CONSTITUTION:The moisture contained in the outside air entering from an opening 5 or the vapor produced from the water contained in the article in display is cooled by a circulating cooling air stream 26 and condensed into water or frost on the outer periphery of an evaporator 12. The frost is thawed periodically by a heater 14 and the resulting drain water is collected on the bottom of a case and the water is carried out from a drain opening 15 through a drain trap 16 and then through a drain pipe 28 into a container 29 for collection therein. A cylindrical body 32 is then placed in the container 29 with its lower part kept under the water therein to suck up the water and a condenser 20 is cooled, while it is made warm. A windmill 30 is made to rotate by an air blower 21 with the cylindrical body 32 provided on the outer periphery thereof, whereby the water is heated and vaporized by the air blowing through the cylindrical body 32.

Description

[Detailed description of the invention]

0001

[Industrial Field of Application] This invention relates to a condenser that is a component of a refrigerator that cools products displayed in a case that is open on one side of the outer circumferential surface, and a blower that blows air to the condenser under the case. A wastewater treatment device that drains water, including condensate, generated inside the case to the outside of the case through a drainage port that penetrates the bottom of the case vertically and communicates with the inside and outside of the case in a showcase with a built-in refrigerator installed in the case. Regarding.

0002

[Prior Art] A showcase with a built-in refrigerator has a built-in refrigerator that cools the products displayed in the case.An evaporator, which is one of the components of the refrigerator, is disposed inside the case. Additionally, components of the refrigerator, such as a condenser, a blower for blowing air to the condenser, and a compressor, are generally arranged under the case. On the other hand, a showcase is a self-service device in which the customer selects the products displayed inside the case while looking at them, and then takes them out and purchases them himself. As shown, one side of the outer peripheral surface of the case is open. The opening of this case is opened at least when a customer takes out a product displayed inside the case, and at this time, even if the opening of the case is covered with an air curtain, outside air containing moisture may enter the case. It is unavoidable to do so. This moisture in the outside air and the moisture contained in the products displayed inside the case that evaporates are cooled during the process of cooling the inside of the case by a refrigerator, producing condensed water or freezing to form frost. . If this frost adheres to the outer circumferential surface of the evaporator, which is a component of the refrigerator, installed inside the case, it will reduce the cooling efficiency inside the case. be done. Condensed water that is generated inside these cases, water that contains so-called drain such as melted water that melts the frost, is generated, but this water travels along the inner wall of the case and collects at the bottom of the case, and is formed at the bottom of the case. Through a drain pipe with one end connected to this drain port, waste water is collected in a drain tank provided inside the machine under the case, and then drained into a drain or drawn into the store. Water is drained into a drainage channel that connects to the ditch. It is troublesome to periodically drain water, including condensate, once collected in a drain tank to a drain, and connecting a drain pipe to a drainage channel is difficult, as it is difficult to connect the drain pipe to the drain every time the layout of the showcase with a built-in refrigerator is changed. Requires re-construction,
When changing the layout of showcases with separate refrigerators, the advantages of showcases with built-in refrigerators, which do not require piping between the showcase and refrigerators, are lost, but the wastewater treatment equipment of conventional showcases of this type One is shown in Figure 3. Figure 3 shows the configuration of a conventional showcase wastewater treatment device with a built-in refrigerator.
(A) is a left vertical cross-sectional view of a showcase with a built-in refrigerator;
B) is a circuit diagram showing the configuration of the refrigerator, and in (A), the right side of the figure is the front side.

In FIG. 3, reference numeral 1 denotes a case with an open front. This case 1 is formed of a heat insulating wall and has a C-shaped case body 2 with open left and right sides and the front. A partition wall 3 having a C-shaped side cross section and a case body 2 supported along the inner peripheral surface at intervals.
and side plates 4 that cover both left and right sides of the partition wall 3. A large opening 5 is formed in the front of the case 1, and inside the case 1, a plurality of shelves 6 for displaying products are vertically arranged in parallel and the rear end is connected to the case 1.
The space inside the case 1 surrounded by the partition wall 3, the case body 2, and the side plate 4 forms a ventilation passage 7. Openings that are open along both upper and lower edges of the opening 5 at both upper and lower ends of the ventilation passage 7 and whose opening surfaces face each other in the upper and lower directions form an air outlet 8 and an inlet 9, respectively. The upward opening surface of the suction port 9 is a suction port cover 10 in which a large number of ventilation holes (not shown) are arranged on the left and right, and the downward opening surface of the air outlet 8 is a honeycomb-shaped flow regulator 11 with both upper and lower ends open. Each is covered with In addition, at the bottom of the ventilation passage 7 on the depth side,
An evaporator 12, a blower 13 for blowing air inside the case 1 to the evaporator 12, and an electric heater 14 disposed between the blower 13 and the evaporator 12 are provided. Furthermore, a drain port 15 is formed that vertically penetrates the bottom of the case body 2, which is the bottom of the case 1, and communicates with the inside and outside of the case 1. A drain pipe 17 is connected to the lower end of the drain port 15 via a drain trap 16. is connected. The other end of this drain pipe 17 leads into a box-shaped drain tank 19 with an open top, which is removably installed in the leg part 18 that supports the case 1. In the leg portion 18, a condenser 20, a blower 21 for blowing air to the condenser 20, and a compressor 22 are arranged in front and rear. This compressor 22,
A refrigerator 24 is constructed by connecting the condenser 20, blowers 13, 21, and evaporator 12 to each other through a pipe 23. The air inside the case 1 is sucked into the ventilation path 7 from the suction port 9 through a ventilation hole (not shown) at 13,
The air is cooled and becomes cold air, which is then blown out from the outlet 8 as a laminar flow through the rectifier 11, forming an air curtain 25 that covers the opening 5, and is sucked in again from the inlet 9 and circulated to form inside the case 1. This is done with a circulating flow 26. The products displayed on the shelves 6 in the case 1 are cooled by this circulation flow 26 and kept cool by the air curtain 25. In addition, moisture in the outside air that entered through the opening 5, moisture in the air inside the case 1 that was contained in the products displayed in the case 1, and evaporated, is cooled by the circulating flow 26 and produces condensed water. Water containing condensate, etc., which has frozen and become frost and adhered to the outer peripheral surface of the evaporator 12 and is periodically melted by the heater 14, flows along the inner wall of the case 1 and collects at the bottom of the case 1, and is drained from the drain port 15. Water is drained from the water through a drain trap 16 and a drain pipe 17, and stored in a drain tank 19. This drain tank 19, drain port 15, drain trap 16 and drain pipe 1
7 constitutes a wastewater treatment device 27, and the water collected in the drain tank 19, including drain, is periodically drained to the drain tank 19.
The water is removed and transported to a drainage ditch (not shown) for drainage.

0004

[Problems to be Solved by the Invention] By the way, such a conventional showcase wastewater treatment device periodically drains the water containing the drain generated in the case 1 and accumulated in the drain tank 19. It is necessary to remove it and transport it to a drainage ditch (not shown) to drain the water, which has the disadvantage that such drainage work is time-consuming and troublesome. In order to eliminate this time-consuming and troublesome drainage work, the water containing the drain generated in the case 1 and accumulated in the drain tank 19 is compressed by the compressor 22 and the temperature is increased by the refrigerator 24.
The refrigerant gas can be evaporated using the heat of the refrigerant gas, or it can be evaporated by heating it with an electric heater, but in either case, the pipe material forming the pipe line 23 is corroded by water containing drain etc. The disadvantages are that there is a risk of holes forming in the pipe material and that power consumption increases.

[0005] This invention has one end connected to the drain port and the other end of the drain pipe connected to the drain groove, thereby impairing the advantage of being easy to change the layout of the showcase with a built-in refrigerator, and preventing damage to the inside of the drain tank. Wastewater treatment for showcases with a built-in refrigerator that allows for effortless and easy drainage treatment of water, including condensate, generated inside the case without storing it and heating it with heat from refrigerant gas or electric heaters. The task is to provide the equipment.

[0006]

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention is provided with a refrigerator for cooling products displayed in a case having an opening on one side of the outer circumferential surface. A showcase with a built-in refrigerator in which a condenser and a blower for blowing air to the condenser are disposed under the case, and a drain hole that penetrates the bottom of the case vertically and communicates with the inside and outside of the case. In a wastewater treatment device for a showcase with a built-in refrigerator that drains water including drain generated inside the case to the outside of the case, the air blown by the blower is drained through the drain port on the leeward side of the condenser. a dish-shaped container that receives the water, and a windmill that holds a cylindrical body having water absorbency and air permeability on the outer periphery and rotates with the wind, the lower end of which is immersed in the water in the container. shall be equipped with the following.

[0007]

[Operation] The present invention is a component of a refrigerator that cools products displayed in a case having an opening on one side of the outer circumferential surface, and the case blows air to a condenser disposed under the case. The air generated within the case is discharged from the condenser to the leeward side of the air blower disposed below the case through a drain hole that penetrates the bottom of the case vertically and communicates with the inside and outside of the case. A dish-shaped container that receives water containing drain, etc., and a windmill that holds a cylindrical body with water absorbency and air permeability on the outer periphery and rotates with the wind, the lower end of which is immersed in the water in the container. The cylindrical body rotates while sucking up water, including drainage, inside the container, and the water sucked up by the cylindrical body cools the condenser and heats itself while absorbing the air blown by the blower. Evaporates from heat.

[0008]

Embodiments Hereinafter, embodiments of the present invention will be explained based on FIGS. 1 and 2. FIG. 1 shows the configuration of a wastewater treatment device for a showcase with a built-in refrigerator according to the present invention, (A) is a left vertical sectional view of the showcase with a built-in refrigerator, and (B) is a circuit diagram showing the configuration of the refrigerator. , (A), the right side of the figure is the front side, and FIG. 2 is an exploded perspective view of the main parts of the wastewater treatment device of FIG. 1, and the right side of the figure is the front side. Common or identical parts to those in FIG. 3 are indicated by the same reference numerals.

In FIGS. 1 and 2, 1 is a case with an open front. This case 1 is formed of a heat insulating wall, and has a case main body 2 with a C-shaped side cross section and open left and right sides and the front. It consists of a partition wall 3 having a C-shaped side cross section and supported along the inner peripheral surface of the main body 2 at intervals, and side plates 4 covering both left and right side surfaces of the case main body 2 and the partition wall 3. The case 1 has a wide opening 5 formed in the front thereof, and inside the case 1, a plurality of shelves 6 for displaying products are vertically arranged in parallel, with the rear end facing toward the depth of the case 1. The space inside the case 1 surrounded by the partition wall 3, the case body 2, and the side plate 4 forms a ventilation passage 7. Openings that are open along both upper and lower edges of the opening 5 at both upper and lower ends of the ventilation passage 7 and whose opening surfaces face each other in the upper and lower directions form an air outlet 8 and an inlet 9, respectively. The upward opening surface of the suction port 9 is a suction port cover 10 in which a large number of ventilation holes (not shown) are arranged on the left and right sides, and the downward opening surface of the air outlet 8 is a honeycomb-shaped flow regulator 11 with both upper and lower ends open. each covered. Further, in the lower part of the depth side of the ventilation passage 7, there is an evaporator 12, a blower 13 for blowing air inside the case 1 to the evaporator 12, and an electric heater disposed between the blower 13 and the evaporator 12. There are 14. Furthermore, a drain port 15 is formed that vertically penetrates the bottom of the case body 2, which is the bottom of the case 1, and communicates with the inside and outside of the case 1. A drain pipe 28 is connected to the lower end of the drain port 15 via a drain trap 16.
are connected. The other end of this drain pipe 28 communicates with a rectangular dish-shaped container 29 disposed within the leg portion 18 that supports the case 1, and a condenser 20 and a blower 21 are arranged with the blower 21 on the depth side, and a windmill 30 is arranged inside the leg portion 18 on the rear side of the container 29. A basket-shaped cylindrical part 31 is formed on the outer periphery of the wind turbine 30, and the cylindrical part 31 is made of a material having water absorbency and breathability, such as sea cotton, etc. The cylindrical body 32 is held in the wind turbine 30 by being fitted into a cylindrical body 32. The lower end of this cylindrical body 32 is immersed in water in a container 29, and the compressor 22, condenser 20, blowers 13, 21, and evaporator 12 are connected to each other by a pipe line 23 to form a refrigerator 24. In addition, this refrigerator 24, drain port 15, drain trap 1
6, drain pipe 28, container 29, windmill 30 and cylindrical body 32
The waste water treatment device 33 is constructed respectively, and the other constructions are the same as those of the conventional example described above.

In the above-mentioned structure, the wastewater treatment device for the showcase with a built-in refrigerator of the present invention uses the refrigerator 24 to cool the products displayed on the shelves 6 in the same manner as in the conventional example described above, but Moisture in the outside air that has entered through the case 5, moisture in the air inside the case 1 that is contained in the products displayed in the case 1, and has evaporated, is cooled by the circulation flow 26 and forms condensed water or freezes. Water containing condensate, which becomes frost and adheres to the outer peripheral surface of the evaporator 12 and is periodically melted by the heater 14, flows along the inner wall of the case 1, collects at the bottom of the case 1, and drains from the drain port 15. The water is drained through the trap 16 and the drain pipe 28 and stored in a container 29. The water containing drain collected in this container 29 is sucked up by a cylindrical body 32 whose lower end is immersed in this water, cooling the condenser 20 and warming itself, raising the temperature to about 70 degrees Celsius. The tube rotates together with the cylindrical body 32 which rotates integrally with the windmill 30 by the wind blown toward 30 by the blower 21, and is heated and evaporated by the wind blown by the blower 21 and blowing through the inside of the cylindrical body 32. Therefore, the water containing the drain does not accumulate in the container 29 to the extent that it overflows from the container 29, which eliminates the troublesome and time-consuming work of removing the drain tank and transporting it to the drain to drain water, as in the conventional example described above. can be eliminated.

[0011]

[Effects of the Invention] According to the present invention, the refrigerator is a component of a refrigerator that cools products displayed in a case whose outer peripheral surface is open on one side, and air is blown into a condenser disposed under the case. the case, wherein the air blown by an air blower disposed under the case is drained to the leeward side of the condenser through a drain hole that vertically penetrates the bottom of the case and communicates with the inside and outside of the case; A dish-shaped container that receives water including drainage generated inside the container, and a cylindrical body with water absorbency and air permeability whose lower end is immersed in the water inside the container are held on the outer periphery, and the container is heated by the wind. Since it is equipped with a rotating windmill, the cylindrical body rotates while sucking up the water including the drain in the container, and the water sucked up by the cylindrical body is cooled by the condenser and heated by the blower. It can be evaporated by the heat of the blown wind.

[0012] As a result, the water containing drainage does not accumulate in the container to the extent that it overflows from inside the container, eliminating the troublesome and time-consuming work of removing the drain tank and periodically transporting it to the drain to drain water. At the same time, it is possible to easily change the layout by taking advantage of the advantage of a showcase with a built-in refrigerator without having to re-install the drain pipe from the drain outlet to the drain, and to form a refrigerant gas conduit. This provides the advantage of being able to construct a safe, simple, and inexpensive wastewater treatment device that does not cause damage to pipe materials or increase power consumption.

[Brief explanation of drawings]

FIG. 1 shows the configuration of a wastewater treatment device for a showcase with a built-in refrigerator according to the present invention, (A) is a left vertical sectional view of the showcase with a built-in refrigerator, and (B) is a circuit diagram showing the configuration of the refrigerator.

[Figure 2] An exploded perspective view of the main parts of the wastewater treatment equipment in Figure 1

[Figure 3]
The configuration of a conventional wastewater treatment device for a showcase with a built-in refrigerator is shown, (A) is a left vertical sectional view of the showcase with a built-in refrigerator, and (B) is a circuit diagram showing the configuration of the refrigerator.

[Explanation of symbols]

1 Case 2 Case body 3 Bulkhead 4 Side plate 5 Opening 6 Shelf 7 Ventilation duct 8 Air outlet 9 Suction port 10 Suction port cover 11 Flow regulation 12 Evaporator 13　　　Blower 14 Heater 15 Drain port 16 Drain trap 17 Drain pipe 18 Legs 19 Drainage tank 20 Condenser 21　　　　Blower 22 Compressor 23 Pipeline 24 Refrigerator 25 Air curtain 26 Circulating flow 27 Wastewater treatment equipment 28 Drain pipe 29 Container 30 Windmill 31 Cylindrical part 32 Cylindrical body 33 Wastewater treatment equipment

Claims (1)

[Claims] Claim 1: A refrigerator for cooling products to be displayed in a case having an opening on one side of the outer circumferential surface, and a condenser that is a component of the refrigerator and a blower for blowing air to the condenser are installed in the case. A showcase with a built-in refrigerator disposed below, which drains water, including drainage generated inside the case, to the outside of the case through a drainage port that vertically penetrates the bottom of the case and communicates with the inside and outside of the case. In a wastewater treatment device for a showcase with a built-in refrigerator for wastewater treatment, a dish-shaped container for receiving the water drained through the drain port on the leeward side of the condenser of the air blown by the blower; A windmill with a built-in refrigerator, the windmill having a lower end immersed in the water, holding an annular or cylindrical body having water absorption and air permeability on the outer periphery, and rotating with the wind. Case wastewater treatment equipment.