Drain water treatment equipment

Abstract

Ensure proper treatment of condensation water. [Solution] A drain water treatment device 20 comprising an evaporation tray 21 for storing condensation water generated in an evaporator 14 which constitutes a refrigerant circuit 10 in which a refrigerant is sealed together with a compressor 11, a condenser 12 and an expansion mechanism 13, and an evaporation member 22 which is erected on the evaporation tray 21 and is composed of a sheet body 23 which sucks up the condensation water by capillary action, the evaporation member 22 having a wave shape in which an upstream portion 221 and a downstream portion 222 in the blowing direction of the air passing around it are alternately bent, and a downstream passing hole 223a is formed in at least the downstream bent portion.

Description

[Technical Field]

[0001] The present invention relates to a drain water treatment device. [Background technology]

[0002] Conventionally, Patent Document 1 proposes an item storage device in which storage modules are arranged inside an insulated main body whose front opening is opened and closed by an outer door that is an insulated door. In such an item storage device, the inside of the main body is cooled by a cooling device having a refrigerant circuit or the like, and the products stored in each storage module are cooled. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2024-062523 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, in the above-mentioned item storage device, as in showcases that display products in a cooled state, condensation water is generated from the evaporator that constitutes the refrigerant circuit, and this condensation water needs to be treated.

[0005] SUMMARY OF THE INVENTION In view of the above circumstances, an object of the present invention is to provide a drain water treatment device that can effectively treat condensed water. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the drain water treatment device of the present invention is a drain water treatment device comprising an evaporation tray for storing condensation water generated in an evaporator which, together with a compressor, a condenser, and an expansion mechanism, constitutes a refrigerant circuit in which a refrigerant is sealed, and an evaporation member which is erected on the evaporation tray and is composed of a sheet body that sucks in the condensation water by capillary action, and which is characterized in that the evaporation member has a wave-shaped shape in which the upstream and downstream portions in the blowing direction of the air passing around it are alternately bent, and a downstream passing hole is formed in at least the downstream bent portion.

[0007] Furthermore, in the drain water treatment device of the present invention, the evaporation member has an upstream passage hole formed in an upstream bent portion thereof.

[0008] Furthermore, in the drain water treatment device of the present invention, the evaporation member is formed with intermediate passage holes along a direction perpendicular to the air blowing direction.

[0009] The present invention is also characterized in that the drain water treatment device further comprises a support member that is installed in a manner that it passes through any of the intermediate passage holes and that supports the evaporation member.

[0010] Furthermore, the present invention is characterized in that, in the drain water treatment device, the evaporation tray is disposed in an air passage for air that has passed around the condenser. [Effects of the Invention]

[0011] According to the present invention, the evaporation member has a wavy shape in which the upstream and downstream portions in the blowing direction of the air passing around it are alternately bent, and a downstream passage hole is formed in at least the downstream bent portion.As a result, when the air passing around it passes through the downstream passage hole, the contact area between the air and the evaporation member is increased, and the evaporation of condensation water sucked in by capillary action is promoted, thereby achieving the effect of enabling good condensation water treatment. [Brief explanation of the drawings]

[0012] [Figure 1] FIG. 1 is a side view showing a schematic internal structure of an item storage device to which a drain water treatment device according to an embodiment of the present invention is applied. [Figure 2] FIG. 2 is a perspective view showing the external configuration of the drain water treatment device shown in FIG. [Figure 3] FIG. 3 is a perspective view of a sheet body that constitutes the evaporation member shown in FIG. [Figure 4] FIG. 4 is an exploded perspective view of the drain water treatment device shown in FIG. [Figure 5] FIG. 5 is an explanatory diagram schematically showing the flow of air relative to the evaporation member shown in FIG. [Figure 6] FIG. 6 is an explanatory diagram schematically showing a modified example of the air flow relative to the evaporation member. DETAILED DESCRIPTION OF THE INVENTION

[0013] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a drain water treatment device according to the present invention will be described in detail below with reference to the accompanying drawings.

[0014] FIG. 1 is a side view showing a schematic internal structure of an item storage device to which a drain water treatment device according to an embodiment of the present invention is applied.

[0015] The item storage device 1 illustrated here is configured to include a refrigerant circuit 10 and a drain water treatment device 20.

[0016] The refrigerant circuit 10 is a circuit configured by sequentially connecting a compressor 11, a condenser 12, an expansion mechanism 13, and an evaporator 14 via a refrigerant pipe 15, and is filled with a refrigerant. The compressor 11 is installed in a machine room 3 provided inside the device main body 2 that constitutes the item storage device 1. The compressor 11 is driven in response to commands given from a control unit (not shown), and when driven, it sucks in the refrigerant, compresses it, and discharges it as a high-temperature, high-pressure refrigerant.

[0017] The condenser 12 is installed in the machine room 3, similar to the compressor 11. The condenser 12 condenses the refrigerant compressed by the compressor 11 by heat exchange with the surrounding air. The expansion mechanism 13 is configured by, for example, an electronic expansion valve, and adiabatically expands the refrigerant condensed by the condenser 12.

[0018] The evaporator 14 is installed in the air passage 4 of the device main body 2. This air passage 4 is in communication with the refrigerator 5 that stores the products through an intake port and an outlet port (neither of which are shown), and air is circulated between the air passage 4 and the refrigerator 5 by driving an internal fan F1 installed in the air passage 4.

[0019] Here, the refrigerator 5 stores products by arranging storage modules (not shown) for storing products side by side on the top, bottom, left and right sides, and faces the front opening 2a of the device main body 2. This front opening 2a is opened and closed by a front door 6 which is an insulated door body.

[0020] The evaporator 14 evaporates the refrigerant that has been adiabatically expanded in the expansion mechanism 13 by exchanging heat between the refrigerant and the air around it, and then draws the refrigerant into the compressor 11. The evaporator 14 cools the air passing through the air passage 4 as the refrigerant evaporates, and the air is blown by the internal fan F1, thereby cooling the air inside the refrigerator 5 and the commodities stored in each storage module.

[0021] The drain water treatment device 20 is disposed in the machine room 3, and is configured to include an evaporation tray 21 and an evaporation member 22, as shown in FIG.

[0022] The evaporation tray 21 is disposed in the air passage 3a for air that passes around the condenser 12 by driving the external fan F2 provided behind the condenser 12. The evaporation tray 21 is for collecting condensed water generated in the evaporator 14 through a gutter (not shown).

[0023] The evaporation member 22 is provided upright on the evaporation tray 21, and although not shown in the drawing, is provided upright in such a manner that a part of it is immersed in the condensed water stored in the evaporation tray 21. The evaporation member 22 is formed by bending a sheet body 23 as shown in FIG.

[0024] The sheet body 23 is a long sheet made of a material that can absorb condensation water by capillary action, and has a plurality of holes 23a formed therein. The holes 23a have an elongated shape whose longitudinal direction coincides with the longitudinal direction of the sheet body 23.

[0025] The evaporation member 22 is formed by making valley folds at the bent portion A of the sheet body 23 and mountain folds at the bent portion B. As shown in Fig. 2, the evaporation member 22 is erected on the evaporation tray 21 in a wave-like shape in which an upstream portion (front portion) 221 and a downstream portion (rear portion) 222 in the air blowing direction (front-rear direction) are alternately bent.

[0026] In this evaporation member 22, downstream passing holes 223a are formed in the downstream (rear) bending portion by the holes 23a in the bending portion B, and upstream passing holes 223b are formed in the upstream (front) bending portion by the holes 23a in the bending portion A. In addition, in the evaporation member 22, intermediate passing holes 223c are formed in a direction (left-right direction) perpendicular to the air blowing direction (front-rear direction) by the holes 23a between the bending portions A and B.

[0027] 4, the evaporation member 22 is supported in a state where the corrugated shape is maintained by a long support member 24 passing through any of the intermediate passing holes 223c and engaging with a support member 25 provided on the evaporation tray 21. In other words, the support member 24 is installed in a manner where it passes through any of the intermediate passing holes 223c and supports the evaporation member 22.

[0028] The following describes the arrangement of the support member 24. The support member 24 is preferably arranged to pass through the intermediate through-hole 223c located above the center of gravity of the evaporation member 22 to prevent the evaporation member 22 from falling over.

[0029] A plurality of protrusions 24a are formed at predetermined intervals on the support member 24 along the longitudinal direction (left-right direction) of the support member 24. When viewed from the side, the support member 24 has a U-shape, and the diagonal dimension of the U-shape is greater than the height dimension of the intermediate through-hole 223c.

[0030] Such a support member 24 is oriented so that the protrusions 24a face forward and is passed through any of the intermediate passing holes 223c, and then the passed-through intermediate passing holes 223c are bent and rotated until the protrusions 24a extend downward, and a portion of the support member 25 is engaged with the support member 25. Then, by arranging some of the protrusions 24a between the intermediate passing holes 223c through which the support member 24 passes, the support member 24 is prevented from slipping out of the intermediate passing holes 223c while maintaining the external shape (wave shape) of the evaporation member 22.

[0031] In such a drain water treatment device 20, as shown in Figure 5, a downstream passage hole 223a is formed, so that part of the air blown from the front after passing around the condenser 12 passes through the downstream passage hole 223a, thereby increasing the contact area between the air and the evaporation member 22 and promoting the evaporation of condensation water sucked in by capillary action.

[0032] In addition, in the drain water treatment device 20, as shown in Figure 5, an upstream passage hole 223b is formed, so that part of the air blown from the front passes through the upstream passage hole 223b, thereby increasing the contact area between the air and the evaporation member 22 and promoting the evaporation of condensation water sucked in by capillary action.

[0033] Furthermore, in the drain water treatment device 20, as shown in Figure 5, an intermediate passage hole 223c is formed, so that a portion of the air blown from the front passes through the intermediate passage hole 223c, thereby increasing the contact area between the air and the evaporation member 22 and promoting the evaporation of condensation water sucked in by capillary action.

[0034] As described above, according to the drain water treatment device 20 which is an embodiment of the present invention, the contact area between the evaporation member 22 and the air passing around the evaporation member 22 can be increased, and the evaporation of the condensation water sucked in by capillary action can be promoted, thereby enabling the condensation water to be treated effectively.

[0035] In such a drain water treatment device 20, as shown in FIG. 6, a second external fan F3 may be installed, for example, on the right side, so that the air blown by driving the second external fan F3 passes through the intermediate passage hole 223c.

[0036] With this, the air blown from the front after passing around the condenser 12 and the air blown by the second external fan F3 join together, so that the air blown from the front and passing around the evaporation member 22 can be directed leftward, and the contact area between the air and the evaporation member 22 can be increased even when there is no space behind the drain water treatment device 20. This promotes evaporation of the condensation water sucked in by capillary action, enabling good condensation water treatment.

[0037] Although the preferred embodiment of the present invention has been described above, the present invention is not limited to this and various modifications can be made.

[0038] In the above-described embodiment, the evaporation member 22 is formed with a downstream passage hole 223a, an upstream passage hole 223b, and an intermediate passage hole 223c, but in the present invention, only a downstream passage hole may be formed in the evaporation member.

[0039] In the above-described embodiment, the drain water treatment device 20 applied to the item storage device 1 has been described, but the present invention may also be applied to a showcase or the like. [Explanation of symbols]

[0040] 1...Item storage device, 2...Device main body, 2a...Front opening, 3...Machine room, 3a...Air duct, 4...Air passage, 5...Refrigerated storage cabinet, 6...Front door, 10...Refrigerant circuit, 11...Compressor, 12...Condenser, 13...Expansion mechanism, 14...Evaporator, 15...Refrigerant piping, 20...Drain water treatment device, 21...Evaporation tray, 22...Evaporation member, 221...Upstream part, 222...Downstream part, 223a...Downstream passage hole, 223b...Upstream passage hole, 223c...Intermediate passage hole, 23...Sheet body, 24...Support member, 24a...Protrusion piece, 25...Support member, F1...Inside cabinet fan, F2...Outside cabinet fan

Claims

1. an evaporation tray that stores condensation water generated in an evaporator that constitutes a refrigerant circuit in which a refrigerant is sealed together with a compressor, a condenser, and an expansion mechanism; an evaporation member that is provided on the evaporation tray and is made of a sheet body that absorbs the condensed water by capillary action; A drain water treatment device comprising: The drain water treatment device is characterized in that the evaporation member has a wave-shaped configuration in which the upstream and downstream portions in the blowing direction of the air passing around it are alternately bent, and a downstream passage hole is formed in at least the downstream bent portion.

2. 2. The drain water treatment device according to claim 1, wherein the evaporation member has an upstream passage hole formed in an upstream bent portion.

3. 3. The drain water treatment device according to claim 2, wherein the evaporation member has intermediate passage holes formed along a direction perpendicular to the air blowing direction.

4. 4. The drain water treatment device according to claim 3, further comprising a support member that is installed in a manner that it passes through any of the intermediate passage holes and supports the evaporation member.

5. 5. The drain water treatment device according to claim 1, wherein the evaporation tray is disposed in a ventilation path for air that has passed around the condenser.

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