JP2020076528A - Drain water treatment device - Google Patents

Abstract

To successfully treat drain water.SOLUTION: A drain water treatment device 30 is provided to correspond to an evaporator 31 constituting a refrigeration circuit 30a filled with a refrigerant, together with a compressor 32, a condenser 33 and an expansion mechanism 34, and has evaporation units 30b evaporating drain water generated in the evaporator 31. The drain water treatment device comprises flowing members 38 having one ends 381 connected to the evaporation units 30b and the other ends constituting coupling end parts 382. The flowing member 38 allows the drain water to flow when being coupled to the other evaporation unit 30b via the coupling end parts 382, and in contrast, is partially closed to restrict flowing of the drain water when not coupled to the other evaporation units 30b via the coupling end parts 382.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a drain water treatment device.

  2. Description of the Related Art Conventionally, as a drain water treatment device applied to a showcase that holds a product to be stored in a desired temperature state, a device including a drain tray is known. The drain tray is provided corresponding to the evaporator, which constitutes the refrigeration circuit in which the refrigerant is enclosed together with the compressor, the condenser, and the expansion mechanism, and stores the drain water generated from the evaporator. The drain water stored in the drain tray is sucked by the drain sheet standing on the drain tray by a capillary phenomenon, and is evaporated and treated by the air passing around the drain sheet (for example, refer to Patent Document 1).

JP, 7-133977, A

  By the way, in the above drain water treatment device, a large amount of drain water is generated in the evaporator in some cases due to factors such as the installation environment of the showcase. Then, if the drain water exceeds the storage limit amount in the drain dish, there is a risk that it may overflow from the drain dish.

  Depending on the showcase, the drain water overflowing from the drain tray may be stored in a predetermined area to prompt the employees of the store where the showcase is installed to process the drain water. For example, the drain water treatment operation becomes complicated.

  Although the drain water treatment device applied to the showcase has been described here, it goes without saying that the drain water treatment device other than the showcase has the same problem.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a drain water treatment apparatus capable of favorably treating drain water.

  In order to achieve the above object, the drain water treatment apparatus according to the present invention is provided corresponding to an evaporator that constitutes a refrigeration circuit in which a refrigerant is enclosed together with a compressor, a condenser, and an expansion mechanism, and in the evaporator, A drain water treatment apparatus comprising an evaporation unit for evaporating generated drain water, wherein the one end is connected to the evaporation unit and the other end is provided with a flow member that forms a connection end, and the flow member is the connection. When it is connected to another evaporation unit through the end, the drain water is allowed to flow, while when it is not connected to another evaporation unit through the connection end, a part of itself is blocked. And restricting the drain water from flowing.

  Further, in the drain water treatment apparatus of the present invention, the evaporation unit includes a drain tray that stores the drain water, and a drain sheet body that is installed upright on the drain tray and that sucks the drain water by a capillary phenomenon. The one end of the flow member is connected to the drain tray.

  Further, the present invention is characterized in that, in the drain water treatment device, the evaporation unit includes height adjusting means for adjusting a height level of the drain tray.

  According to the present invention, when the flow member whose one end is connected to the evaporation unit and the other end constitutes the connection end is connected to another evaporation unit through the connection end, drain water is allowed to flow. On the other hand, if it is not connected to another evaporation unit through the connection end, it blocks a part of itself and restricts the flow of drain water, so it is connected to another evaporation unit through the connection end. If so, the evaporation unit can be shared. Therefore, when the amount of drain water generated in any of the evaporation units is large, the drain water can be passed through another evaporation unit and the drain water can be evaporated. Therefore, according to the drain water treatment device, there is an effect that the drain water can be favorably treated.

FIG. 1 is a cross-sectional side view schematically showing an internal structure of a showcase to which a drain water treatment device according to an embodiment of the present invention is applied. FIG. 2 is a schematic diagram showing a flow member connected to the drain tray shown in FIG. FIG. 3 is a schematic diagram showing a state in which the evaporation units shown in FIGS. 1 and 2 are connected. FIG. 4 is a schematic diagram showing a modified example of the drain water treatment device shown in FIGS. 1 to 3.

  Preferred embodiments of the drain water treatment apparatus according to the present invention will be described in detail below with reference to the accompanying drawings.

  FIG. 1 is a cross-sectional side view schematically showing an internal structure of a showcase to which a drain water treatment device according to an embodiment of the present invention is applied. The showcase illustrated here includes a case body 10.

  The case body 10 is a heat-insulating housing having an opening (hereinafter, also referred to as a front opening) 10a on the front surface. The case body 10 has a storage chamber 11 defined therein, and an air circulating means 20 and a drain water treatment device 30 are provided therein.

  The storage chamber 11 is a chamber defined so as to face the front opening 10a, and a plurality (five in the illustrated example) of product storage shelves 12 are arranged side by side in the vertical direction. The product loading shelves 12 are for loading products, respectively.

  A deck pan 13 is provided at the bottom of the storage chamber 11. The deck pan 13 is for placing products in the same manner as the product placing shelf 12.

  A suction port 14 is formed in the lower front portion of the storage chamber 11, and an air outlet 15 is formed in the upper front portion of the storage chamber 11.

  The suction port 14 is an opening for sucking air inside the storage chamber 11, and extends along the left-right direction of the storage chamber 11. The air outlet 15 is an opening for blowing air into the storage chamber 11. The air outlet 15 extends in the left-right direction of the storage chamber 11. Although not shown in the drawing, a rectifying member having a honeycomb structure is appropriately attached to the blowout port 15.

  The air circulation means 20 is configured to include an air wind passage 20a and a circulation fan 20b. The air passage 20a is an air passage from the suction port 14 to the air outlet 15.

  Such an air wind passage 20a communicates with the suction port 14 and is located outside the storage chamber 11 and below the lower air wind passage 21 and on the back side outside the storage chamber 11 on the back side thereof. An air flow path 22, a storage box 23 outside the storage chamber 11 and above the storage box 11, and an upper air flow path 24 outside the storage chamber 11 and above the storage box 11 and communicating with the air outlet 15. It is configured to communicate with each other.

  The circulation fan 20b is driven to circulate the air, and is provided at a predetermined portion of the lower air passage 21. In the present embodiment, the circulation fan 20b is provided at a predetermined portion of the lower air flow passage 21, but the arrangement position of the circulation fan 20b is not particularly limited in the present invention, and a circulation fan described later is provided. It may be provided anywhere as long as it can exhibit the function of 20b.

  In such an air circulation means 20, the air inside the storage chamber 11 is sucked through the suction port 14 by driving the circulation fan 20b, and the sucked air passes through the air air passage 20a. The air is circulated between the inside and the outside of the storage chamber 11 by being blown out to the inside of the storage chamber 11 through the air outlet 15 through the outlet 15.

  The drain water treatment device 30 includes a refrigeration circuit 30a and an evaporation unit 30b. The refrigeration circuit 30a is configured by an evaporator 31, a compressor 32, a condenser 33, and an expansion mechanism 34 that are sequentially connected by a refrigerant pipe 35, and a refrigerant is sealed inside.

  The evaporator 31 is installed inside the storage box 23, and cools the air passing through the inside of the storage box 23 by evaporating the supplied refrigerant. The compressor 32, when driven, sucks and compresses the refrigerant evaporated in the evaporator 31.

  The condenser 33 is installed in a standing posture in front of the top wall portion of the case body 10. The condenser 33 heat-exchanges the refrigerant compressed by the compressor 32 and passing therethrough with the air passing the surroundings to condense the refrigerant. The expansion mechanism 34 adiabatically expands the refrigerant condensed in the condenser 33 into a low temperature and low pressure state and supplies the refrigerant to the evaporator 31.

  The evaporation unit 30b is installed on the rear side of the condenser 33 and on the front side of the storage box 23, and includes a drain tray 36 and a drain sheet body 37.

  The drain tray 36 is for storing drain water generated in the evaporator 31 that constitutes the refrigeration circuit 30a through a gutter (not shown).

  The drain sheet body 37 has a substantially rectangular parallelepiped shape. The drain sheet body 37 is provided upright on the drain tray 36 on the rear side of the condenser 33. The drain sheet body 37 is formed by processing a filter paper and sucks the drain water stored in the drain tray 36 by a capillary phenomenon.

  A wind tunnel 40 is provided above the drain tray 36 and on the rear side of the drain sheet body 37. The wind tunnel 40 has a rectangular parallelepiped shape with an open front surface, and is provided with a blower fan 45 so as to close an upper opening (not shown) formed in the upper portion. The blower fan 45 blows out the air that has passed through the wind tunnel 40 when driven, upward from the upper opening.

  As shown in FIG. 2, a circulation member 38 is connected to the drain tray 36 that constitutes the evaporation unit 30b. The distribution member 38 is composed of, for example, a resin hose and the like. One end 381 is connected to the drain tray 36, and in the middle of the distribution member 38, the other end is exposed from the case body 10. The connecting end portion 382 is configured. As shown in FIG. 3, the connecting end 382 can be connected to the connecting end 382 of another evaporation unit 30b applied to another adjacent showcase. Further, the connection end portion 382 has a function of closing a hollow portion (not shown) when it is not connected to another evaporation unit 30b, that is, in the normal state.

  Accordingly, when the circulation member 38 is connected to the other evaporation unit 30b through the connection end 382, drain water is allowed to flow, but is not connected to the other evaporation unit 30b through the connection end 382. Regulates the flow of drain water by blocking a part of itself.

  In the showcase having the above-described configuration, the circulation fan 20b is driven to suck the air inside the storage chamber 11 through the suction port 14 and pass through the lower air air passage 21 and the rear air air passage 22. Then, the storage box 23 is entered. The air that has entered the storage box 23 passes through the upper air duct 24, reaches the air outlet 15, and is blown out from the air outlet 15. The air blown out from the blowout port 15 flows toward the suction port 14 while passing through the tip end portion of each product placement shelf 12 to form an air curtain.

  In the drain water treatment device 30, when the compressor 32 is driven, the refrigerant compressed by the compressor 32 is condensed by the condenser 33 and reaches the expansion mechanism 34. The refrigerant sent to the expansion mechanism 34 is adiabatically expanded and sent to the evaporator 31, and exchanges heat with the air passing through the storage box 23 while passing through the refrigerant flow path of the evaporator 31 to be evaporated. The evaporated refrigerant is sucked into the compressor 32 and circulates.

  By driving the compressor 32 in this way, the air passing through the storage box 23 is cooled, and the cooled air is blown out from the air outlet 15, so that the internal air in the storage chamber 11 is discharged. When cooled, the products placed on the product placing shelf 12 and the deck pan 13 are cooled.

  Further, when the compressor 32 is driven, drain water is generated in the evaporator 31, and the generated drain water is supplied to the drain tray 36 through the gutter and stored in the drain tray 36.

  In the drain water treatment device 30, the blower fan 45 is driven so that the air outside the case body 10 passes through the condenser 33 from the front to the rear, and then passes through the drain sheet body 37. .. The air thus passing through the drain sheet body 37 passes through the inside of the wind tunnel 40 and is discharged upward from the upper opening.

  By the way, since the circulation member 38 is connected to the drain tray 36, as shown in FIG. 3, when it is connected to another evaporation unit 30b through the connecting end 382, the evaporation unit 30b of each showcase is shared. Can be turned into. Therefore, when the amount of drain water generated in any one of the showcases is large, the drain water can be circulated to another evaporation unit 30b and the drain water can be evaporated. Therefore, according to the drain water treatment device 30, the drain water can be favorably treated.

  The preferred embodiment of the present invention has been described above, but the present invention is not limited to this, and various modifications can be made.

  In the above-described embodiment, as shown in FIG. 3, the evaporation units 30b are connected to each other in the adjacent showcases. However, in the present invention, the evaporation units 30b are evaporated depending on the environment to which the showcases are applied. The connection between the units 30b may be appropriately selected. That is, it is not always necessary to connect it with another evaporation unit 30b.

  Further, in the present invention, as shown in FIG. 4, in the evaporation units 30b connected to each other, the drainage member 39 may be provided so as to be connected to any of the circulation members 38. The drainage member 39 is composed of, for example, a resin hose, and has one end 391 connected to an arbitrary flow member 38 and the other end 392 closed by a plug 393. By providing such a drainage member 39, the other end 392 of the drainage member 39 is introduced into a predetermined drainage region, and the plug 393 is removed and opened to drain the drain water to the drainage region through the drainage member 39. Can be made

  In the above-described embodiment, the circulation member 38 is connected to the drain tray 36, but in the present invention, the circulation member is connected to the drain sheet body, and drain water is collected by a capillary phenomenon. It may be distributed.

  In the embodiment described above, the connecting end 382 of the flow member 38 normally has the function of closing the hollow portion, but in the present invention, the connecting end has the function of closing. Alternatively, a blocking portion may be provided to block any portion of the flow member.

  Although not described in the above-described embodiment, in the present invention, height adjusting means for adjusting the height level of the drain tray may be provided. When such height adjusting means is provided, the evaporation trays connected to each other can be adjusted so that the drain trays have the same height level, or the height of the drain trays in which drain water is often generated is high. Can be adjusted to be relatively high, and the flow of drain water can be promoted.

  Although the drain water treatment device 30 applied to the showcase has been described in the above-described embodiment, the present invention is not limited to the showcase and may be applied to other fixtures such as a vending machine.

30 Drain Water Treatment Device 30a Refrigeration Circuit 30b Evaporation Unit 31 Evaporator 32 Compressor 33 Condenser 34 Expansion Mechanism 35 Refrigerant Pipeline 36 Drain Plate 37 Drain Sheet Body 38 Circulation Member 382 Connection End

Claims (3)

A drain water treatment device provided with an evaporator that is provided corresponding to an evaporator that constitutes a refrigeration circuit in which a refrigerant is enclosed together with a compressor, a condenser, and an expansion mechanism, and that has an evaporation unit that evaporates the drain water generated in the evaporator. hand,
One end is connected to the evaporation unit and the other end is provided with a flow member forming a connecting end,
When the circulation member is connected to another evaporation unit through the connection end, while allowing the drain water to flow, when not connected to another evaporation unit through the connection end, A drain water treatment device, characterized in that a part of itself is blocked to regulate the flow of the drain water. The evaporation unit is
A drain tray for storing the drain water,
And a drain sheet body that is installed upright on the drain tray and sucks the drain water by a capillary phenomenon.
The drain water treatment device according to claim 1, wherein the flow member has one end connected to the drain tray.   The drain water treatment apparatus according to claim 2, wherein the evaporation unit includes height adjusting means for adjusting a height level of the drain tray.

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