JPH04251179A - Dew water collecting device - Google Patents

Abstract

PURPOSE:To provide a dew water collecting device prominent in washability and durability. CONSTITUTION:A dew water collecting device 50 is constituted principally of a surface constituting body (thin plate 51) having a multitude of venting sections (penetrating holes 51a) and a base plate 52, arranged at one side of the surface constituting body with a gap to generate capillary phenomenon, while the dew water collecting device 50 is arranged detachably to a ceiling for a predetermined receiving space R1 provided with an opening O opened and closed by a door 30 so that the base plate 52 comes to the side of a wall surface.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention is designed to capture dew condensation generated on the ceiling walls of high-humidity storage warehouses where fresh foods are stored to prevent them from drying out, or bathrooms filled with water vapor. The present invention relates to a condensation water capture device used.

0002

2. Description of the Related Art A condensation water trapping device used in a high-humidity storage (hereinafter simply referred to as a storage) for storing fresh foods while preventing them from drying out has been proposed, for example, in Japanese Utility Model Application Publication No. 64-41880. However, the condensation water trapping device proposed in the above publication consists of a condensation catch plate made of water-absorbing fiber cloth, that is, a rectangular frame made of synthetic resin or metal, and a water-absorbing cloth pasted on it. It is a rectangular plate made of synthetic resin or metal with cold air passage holes perforated and covered with water-absorbing fiber cloth, and is installed at an angle on the ceiling of the storage room. . In a condensation water trapping device with such a configuration, (1) Water droplets condensed on the dew receiving plate are absorbed by the water-absorbent fibers, and unabsorbed water is diffused into the water-absorbent fibers, flows in an inclined direction, and flows down from the end thereof. is discharged outside. - Moisture that condenses on the ceiling of the storage room and drips onto the dew receiving plate is absorbed or drained in the same way as described above. (2) Moisture that has been absorbed by the water-absorbing fibers or has not flowed down and has adhered thereto evaporates again because the humidity inside the storage chamber is not 100%, increasing the relative humidity in the air. The following effects can be obtained.

0003

[Problems to be Solved by the Invention] By the way, in the above-mentioned conventional condensation water trapping device, after long-term use,
Bacteria adhere to and multiply on water-absorbing fiber cloth, resulting in mold formation, and odors from stored items such as fish and meat are adsorbed to water-absorbing fiber cloth, giving off a strange odor. To solve this problem, the condensation water trapping device can be cleaned regularly to remove mold and odor from the absorbent fiber cloth, but absorbent fiber cloth is made up of countless fine fibers piled up. Even if immersed in a cleaning solution, mold and odor attached to each fiber cannot be accurately removed.Mold must be removed mechanically using a brush, etc.; Removal may damage or tear the absorbent fiber cloth, making it impossible to reuse it. The present invention has been made to address the above-mentioned problems, and an object of the present invention is to provide a condensation water trapping device that has excellent cleanability and durability.

0004

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention includes a dew condensation water trapping device that includes a surface structure having a large number of vents, and a capillary phenomenon on one side of the surface structure. The main body is a base plate that is arranged with a gap that creates a gap, and the base plate is removably installed on the ceiling of a predetermined storage space that has an opening that can be opened and closed by a door, with the base plate facing the wall. did. Also,
In addition to the above configuration, the surface structure and the base plate can be separated.

[0005]

[Function] When the condensed water trapping device according to the present invention is disposed in the accommodation space, the water droplets that have condensed on the upper wall forming the accommodation space and dripped downward are caught on the upper surface of the base plate. Further, the water droplets condensed on the upper surface of the base plate are caused to flow in a predetermined direction by gravity together with the water droplets mentioned above, and are caused to flow downward at the end portions. Further, water droplets condensed on the lower surface of the condensed water trapping device, that is, on the side of the surface structure, are drawn into the gap by capillary action caused by the gap between the surface structure and the base plate, and flowed in a predetermined direction through the gap by gravity. The water remaining in the gap between the surface structure and the base plate evaporates when the humidity in the housing space decreases, and acts to increase the relative humidity in the air.

[0006]

[Effects of the Invention] By the way, the condensed water trapping device according to the present invention is mainly composed of a surface structure and a base plate, and is detachable from the housing space, so it can be manufactured at low cost and , mold, odor, and dirt attached to the surface structure and base plate can be easily cleaned by mechanical cleaning with a brush or the like after being removed from the housing space, and the inside of the housing space can be kept clean; It is highly durable and can be used repeatedly without being damaged or damaged by mechanical cleaning. In addition, when the surface structure and the base plate are configured to be separable, the opposing surfaces of the surface structure and the base plate can also be cleaned by mechanical cleaning with a brush, etc. It is possible to more easily and accurately remove mold, odor, and dirt attached to the surface.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 and 2 show an example in which the dew condensation water trapping device according to the present invention is implemented in a storage. In this storage, a thermal insulation box 10 having an opening on the front (left side in FIG. 1) is made of a heat-resistant material such as stainless steel. A storage box 20 made of a conductive metal plate is assembled so that its opening overlaps with the opening of the insulation box 10, and the storage space R1 formed by the storage box 20 is located at the front of the insulation box 10. It is sealed by a heat insulating door 30 which is pivotably opened and closed via a hinge (not shown).

The insulation box 10 includes an outer box 1 having an opening on the front side.
1, an inner box 12 having an opening on the front and assembled inside the outer box 11 with a required gap, and a heat insulating material 13 such as urethane foam filled between both boxes 11 and 12. ing. The heat insulating door 30 also includes a front plate 31, a rear plate 32 assembled to this while maintaining a required gap, and both plates 31, 32.
A side plate 33 that connects these plates 31 and 32 at their peripheral edges;
, 33, and a sealing rubber 35 attached to the back surface of the rear plate 32. Furthermore, a cold air circulation space R2 is formed between the insulation box 10 and the storage box 20, as shown in FIGS. Cold air is allowed to circulate.

As shown in FIG. 3, the cold air supply device 40 includes an evaporator 41 disposed on the inner surface of the left side wall of the insulating box 10 and functioning as a cooler, and an evaporator disposed outside the insulating box 10. A compressor 42, a condenser 43, a dryer 44, a capillary tube 45 and a hot gas valve 46 as pressure reducing means, and an electric fan 47 that air-cools the condenser 43 are connected to the evaporator 41 to form a refrigeration circuit. , a cover 48 that is assembled inside the insulation box 10 and covers the evaporator 41;
and an electric blower fan 49 disposed in an opening provided above the cover 48. When the electric blower fan 49 is activated, the cool air that has passed through the evaporator 41 is sent to the storage box 20 as shown by the arrow. After flowing along the top wall 21, it descends along the right side wall 23 or the rear wall 24 and returns to the evaporator 41 along the bottom wall 25. In addition, the cover 48
is arranged apart from the left side wall 22 of the storage box 20,
Its front and rear ends are fixed to the front and rear walls of the inner box 12 in the insulation box 10, and its upper end is fixed to the upper wall of the inner box 12.

The cold air supply device 40 also includes a defrost sensor S1 attached to the evaporator 41 and a temperature sensor S2 disposed inside the storage box 20 (which can also be implemented by disposing it in the cold air circulation space R2). as well as an electric control device (
(not shown), and when it is determined that defrosting of the evaporator 41 is necessary based on the signal from the defrost sensor S1, the hot gas valve 46 is opened for a predetermined period of time, and the evaporator 41 is defrosted. , when it is determined that the lower limit of the predetermined temperature range has been reached based on the signal from the temperature sensor S2, the operation of the cold air supply device 40 is stopped, and when it is determined that the upper limit has been reached, the cold air supply device 40 operation is now restarted. The water generated by defrosting the evaporator 41 is received by a water tray (not shown) disposed below the evaporator 41 and then discharged to the outside of the refrigerator through the insulation box 10.

In this embodiment, as shown in FIGS. 1 and 2, the condensation water trapping device 5 according to the present invention is installed on the ceiling of the storage space R1 formed by the storage box 20.
0 is removably arranged. As shown in a partially enlarged view in FIG. 4, the condensed water trapping device 50 includes a thin plate 51 having a large number of through holes 51a (the shape is not limited to round holes), and one side of the thin plate 51. It is composed of a base plate 52 (a plate with no through holes on the entire surface) that is separably arranged with a gap d (preferably about 0.1 to 0.6 mm) that causes capillary action by using a shim plate 53. and shim plate 5
3 is provided in a U-shape at the peripheral edge between both plates 51 and 52 except for the rear end edge, and the gap d is open at the rear end. The material of each plate 51, 52, 53 is as follows:
A stainless steel plate is suitable, and a resin plate may also be used.

Further, the condensed water trapping device 50 is formed so that its width in the left-right direction (left-right direction in FIG. 2) is slightly shorter than the width in the left-right direction of the opening O that is opened and closed by the heat insulating door 30. It can be inserted and removed from the rails 61 and 62 attached to both side walls 22 and 23 of the box 20 in the front-rear direction (left-right direction in FIG. 1) with the base plate 52 facing the upper wall side of the storage box 20 (detachable). It is assembled into. As shown in FIGS. 1 to 3, each rail 61, 62 is formed in an L-shape, and descends toward the rear so as to be substantially parallel to the upper wall 21 of the storage box 20. It is attached to each side wall 22, 23 of the storage box 20 with screws 63 in an inclined manner, and a stopper 61a standing upward is formed at the rear end. The installation location is specified.

In this embodiment configured as described above, when the insulating door 30 is opened and closed during use, moisture in the outside air and moisture evaporated from the fresh foods in the storage box 20 are absorbed into each storage box 20. Condensation occurs on the wall surface and the condensed water trapping device 50. Thus, the water droplets that have condensed on the upper wall 21 of the storage box 20 and dripped downward are caught on the upper surface of the base plate 52 in the condensed water trapping device 50. Further, the water droplets condensed on the upper surface of the base plate 52 flow backward by gravity together with the above-mentioned water droplets, and flow downward from the rear end of the condensed water trap 50 to the rear wall 20 of the storage box 20.
Along with the water droplets condensing on the rear wall 24, the storage box 20
Flows to the bottom of the rear. In addition, water droplets that condense on the side walls 22, 23, bottom wall 25, etc. of the storage box 20 and flow down also collect at the rear of the bottom of the storage box 20, and these droplets are collected in the drain pipe 29.
It is discharged outside the refrigerator through the

On the other hand, water droplets condensed on the lower surface of the condensed water trapping device 50, that is, on the thin plate 51 side, are removed from both plates 5.
The condensed water is drawn into the gap d by the capillary phenomenon caused by the gap d between 1 and 52, and flows in the direction of inclination of the condensed water trap 50 through the gap d due to gravity.
The water droplets merge with the water droplets mentioned above at the rear end of the container and are discharged outside the refrigerator. The capillary phenomenon described above is obtained during the process shown in (A) to (E) in Figure 5 (this is obtained repeatedly), and the state shown in (A) (when water droplets start to form due to condensation) ), the lower surface of the thin plate 51 and the thin plate 5
Small water droplets are formed on the lower surface of the base plate 52 corresponding to the through holes 51a of No. 1, and these gradually grow (
As shown in B) and (C), in (B), the water droplets formed on the lower surface of the thin plate 51 gradually become larger, and the water droplets formed on the lower surface of the base plate 52 come into contact with the gap d. Gap d due to capillary phenomenon at gap d
Also, in the case of (C), the thin plate 51
One end of the water droplet formed on the lower surface of the thin plate 51 travels up the through hole 51a and comes into contact with the gap d, and is sequentially absorbed by the capillary phenomenon in the gap d as shown in (C) and (D). As shown in (D) and (E), the water that cannot be held in the gap d flows in the inclined direction in the gap d, and flows down from the rear end of the condensation water trapping device 50. Before reaching (C) above, the diameter of the through hole 51a is adjusted so that water droplets attached to the thin plate 51 due to surface tension do not drip due to their own weight.
It is necessary to appropriately set the interval between the through holes 51a, the thickness of the thin plate 51, the inclination angle of the condensed water trap 50, etc. By the way, the water remaining in the gap between both plates 51 and 52 evaporates when the humidity in the storage space R1 decreases, and acts to increase the relative humidity in the air. It suppresses the evaporation of moisture from the food and maintains the freshness of perishable foods for a long time.

As is clear from the above description, in this embodiment, the condensed water trapping device 50 according to the present invention can reliably prevent water droplets from dripping onto the fresh foods stored in the storage space R1. Not only is it possible to accurately prevent fresh foods from being damaged by water droplets, but also the condensation water trapping device 50 according to the present invention is removable from the storage space R1, and its constituent members are a thin plate 51 and a base plate 52. Since the and shim plates 53 can be separated from each other, mold, odor, and dirt adhering to both sides of each plate 51, 52, and 53 can be easily and accurately removed by mechanical cleaning with a brush or the like on a regular basis. can be kept clean for a long period of time. Further, the condensed water trapping device 50 according to the present invention is mainly composed of a thin plate 51 and a base plate 52, and can be manufactured at low cost, and each of the plates 51 to 53 is not damaged by mechanical cleaning with a brush or the like. It has excellent durability and can be used repeatedly with almost no breakage.

[0016]

[Modification] In the above embodiment, by simply interposing the shim plate 53 between the thin plate 51 and the base plate 52, the thin plate 51 and the base plate 52
A gap d is formed between the plates 51 and 52 to cause a capillary phenomenon, but as shown in FIG. The screw attachment portion 51b of the thin plate 51 provided in
By slightly protruding the base plate 52 toward the base plate 52 side and bringing the tip of the screw attachment portion 51b into contact with the base plate 52 (although not shown, by slightly protruding a part of the base plate 52 toward the thin plate 51 side, this bulge can be removed). (Also possible by bringing the tip of the part into contact with the thin plate 51)
, a gap d that causes a capillary phenomenon may be formed between the thin plate 51 and the base plate 52,
Further, as shown in FIG. 6(B), both plates 51,
By interposing an annular spacer 55 between the plates 51 and 52 where the screw 54 for separably connecting the base plates 52 and 52 is attached, a gap d is formed between the thin plate 51 and the base plate 52 to cause a capillary phenomenon. You may also do so.

Further, as shown in FIG. 6C, stainless steel plates are used as both plates 51 and 52, and when forming the through hole 51a in the thin plate 51 by punching, the burr 51c is actively removed. Form this burr 51
Place the tip of c (where the unevenness is formed) on the base plate 5.
2 (fixing can also be done by spot welding), a gap d may be formed between the thin plate 51 and the base plate 52 to cause a capillary phenomenon. Further, as shown in FIG. 6(D), stainless steel plates are used as both plates 51 and 52, and both plates 51 and 52 are brought into contact with each other at a convex portion 52a formed on the base plate 52 and spot welded. ,
A gap d may be formed between the thin plate 51 and the base plate 52 to cause a capillary phenomenon. Note that when both plates 51 and 52 are fixed together, the opposing surfaces of both plates 51 and 52 cannot be mechanically cleaned using a brush or the like, but mold and odor are less likely to occur in stainless steel plates. This is known from experience, and since the opposing surfaces of both plates 51 and 52 can be cleaned by flowing water into the gap d, no problem arises in practice.

Further, in the above embodiment, the condensed water trapping device 50 according to the present invention was mounted on the rails 61, 62 attached to the side walls 22, 23 of the storage box 20 so as to be detachable. As shown in FIG. 2, the condensed water trap 50 according to the present invention may be detachably attached to a fixture 63 attached to the upper wall 21 of the storage box 20 using screws 64. Furthermore, in the above embodiment, an example was described in which the dew condensation water trapping device 50 according to the present invention was implemented in a small-sized storage. insulation door 30
When implementing the condensed water trapping device according to the present invention in a large-scale storage that is sealed by .

Further, in the above embodiment, the plate 51 having a large number of through holes 51a constitutes a surface structure having a large number of ventilation portions, but as shown in FIG. 151a and a wire rod (net body) 151b whose ends are fixed to the frame body 151a and woven into a lattice shape.
to construct a surface structure with a large number of ventilation parts,
As shown in FIG. 10, a frame 25 made of metal or resin
1a and wire rods 251b whose ends are fixed to the frame 251a and arranged in parallel at predetermined intervals, it is also possible to construct a surface structure having a large number of ventilation portions. However, in the condensed water trapping device 150 shown in FIG.
As shown in FIG. 11(A), a gap d that causes a capillary phenomenon is formed between the base plate 52 and the wire (mesh body) 151b, and in the same gap d, as shown in FIGS. 11(B) and (C). Condensed water is captured as shown. In addition, in the dew condensation water trapping device 250 shown in FIG. 10, (A) in FIG.
As shown in , a gap d that causes a capillary phenomenon is formed between the base plate 52 and the wire 251b;
As shown in FIGS. 12(B) and 12(C), condensed water is captured.

Furthermore, in the above embodiment, an example was explained in which the condensed water trapping device 50 according to the present invention was implemented in a small-sized storage, but the dew condensing water trapping device 50 according to the present invention can also be applied to a bathroom or the like filled with water vapor. It is something that can be done. Further, in the above embodiment, the condensed water trapping device 50 is formed into a flat plate shape, and is disposed on the ceiling of the housing space R1 so as to be inclined downwardly toward the rear.
0, the condensed water trap 50 is curved into a chevron shape.
Water droplets may be made to flow down from both the left and right sides of 0. Further, in the above embodiment, the cold air supply device 40 is attached to cool the accommodation space R1 of the storage, but as a means for cooling the accommodation space R1 of the storage, for example, cooled brine is circulated and cooled. Various methods are available, including a brine method, an indirect cooling method in which a cooling source such as an evaporation tube or a brine tube is placed around the outer periphery of the storage box 20, and a direct cooling method in which a cooling source such as ice or dry ice is placed inside the storage box 20. Adoptable.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional side view showing an example of a storage unit in which a dew condensation water trapping device according to the present invention is implemented.

FIG. 2 is a sectional view taken along line 2-2 in FIG. 1.

3 is a diagram showing a cold air supply device attached to cool the accommodation space shown in FIGS. 1 and 2. FIG.

FIG. 4 is an enlarged view of a part of the condensed water trap shown in FIG. 1;

5 is a diagram showing a process from generation to disappearance of water droplets formed by condensation on the dew condensation water trapping device shown in FIG. 1. FIG.

FIG. 6 is an enlarged sectional view showing various means for forming a gap that causes capillary action between the thin plate and the base plate.

FIG. 7 is a longitudinal sectional side view showing a modification of the arrangement means for the condensed water trapping device according to the present invention on the ceiling of the accommodation space.

8 is a sectional view taken along line 8-8 in FIG. 7.

FIG. 9 is a diagram showing a modification of the condensed water trapping device according to the present invention.

FIG. 10 is a diagram showing another modification of the condensation water trapping device according to the present invention.

11 is a diagram showing a state in which condensed water is captured in the same gap formed by the condensed water trapping device shown in FIG. 9; FIG.

12 is a diagram showing a state in which condensed water is captured in the same gap as the gap formed by the condensed water trapping device shown in FIG. 10. FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10... Heat insulation box, 20... Storage box, 30... Heat insulation door, 50... Condensation water capture device, 51... Thin plate (surface structure), 51
a...Through hole (ventilation part), 52...Base plate, R1...
Accommodation space, O... Opening, d... Gap, 150... Dew condensation water capture device, 151a... Frame body, 151b... Wire rod woven in a lattice shape, 250... Dew condensation water capture device, 251a... Frame body, 251
b...Wire rods arranged in parallel.

Claims (5)

[Claims] Claim 1: An opening that is opened and closed by a door, which is mainly composed of a surface structure having a large number of ventilation portions and a base plate disposed with a gap provided on one side of the surface structure to generate a capillary phenomenon. A dew condensation water trapping device that is removably installed on the ceiling of a predetermined storage space with the base plate facing the wall surface. 2. The condensation water trapping device according to claim 1, wherein the surface structure and the base plate are separable. 3. The condensation water trapping device according to claim 1, wherein the surface structure is composed of a plate having a large number of through holes. 4. The dew condensation water trapping device according to claim 1, wherein the surface structure is constituted by a frame and a wire rod whose end portion is fixed to the frame and is woven in a lattice shape. 5. The dew condensation water according to claim 1, wherein the surface structure is constituted by a frame and wires whose ends are fixed to the frame and are arranged in parallel at predetermined intervals. Capture device.