JPS6375471A - Humidifier for refrigerator - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a humidifying device for a refrigeration system, which is installed together with a cooling unit inside a low-temperature refrigerator.

(b) Conventional technology For example, Japanese Utility Model Publication No. 61-20463 discloses a cooling coil that is suspended from the lower surface of the cooling coil and blows cold air through a ventilation hole formed in the side wall, as shown in FIG. An ultrasonic humidifying device for a cooling device is shown in which this cold air is carried upward as a water mist generated by a vibrator, and the flow direction is changed by a reversing member to blow out the mist upward.

Problems to be Solved by the Invention In the above-mentioned conventional technology, the temperature inside the refrigerator is set at -2 degrees Celsius, which is the so-called freezing temperature range, and in order to maintain the freshness of stored products,
When a humidifier that humidifies the air inside the refrigerator is installed at an appropriate location in the refrigerator, the humidifier sucks in a part of the cold air inside the refrigerator, humidifies it, and discharges mist, but the return cold air sucked by the humidifier is When a filter is installed at the ventilation opening because it is lower than 0℃,
Since this filter acts as an air path resistance for the return cold air, frost is gradually formed, and this frost obstructs the flow of the sucked cold air, and the amount of mist discharged from the humidifier decreases. In order to suck in return cold air that is lower than 0°C, low-temperature cold air flows inside the humidifier, and this low-temperature cold air is 0°C.
Compared to the above air, its specific gravity is thicker (and because only small particles of the fog generated by the vibration of the vibrator can be transported, the amount of fog transported per hour is small (). In order to maintain this temperature, the operation time of the humidifier is long, the humidification efficiency is poor, and the cooling coil has to be operated during the rest period, so-called thermocycle, and the thermocycle time is short (the cooling coil starts and stops). A problem has arisen in that the number of times of repetition increases.The object of the present invention is to solve the above problem.

B) Means for solving the problems The present invention has been made to solve the above problems.
The following description will be given based on an example.
A) (9B) α0), cold air inlet (9) and cold air outlet α
It is installed at an appropriate place in the low-temperature refrigerator (1) together with a cooling unit (6) equipped with a mist outlet ■ and a fog generator (2I), which sucks in part of the cold air circulating in the refrigerator and generates fog along with this cold air. A blower (a) for blowing out the mist generated in the device CI'l) into the refrigerator, a suction port C29) paired with a mist outlet equipped with a filter, and a heating device H disposed at this suction port. A humidifying device (4) for a refrigeration device is provided.

(E) Effect According to the example below, the heating device (■) disposed at the cold air suction port @ of the humidifying bag # (4) for a refrigeration device generates heat when the humidifying device (4) is operated, and the suction port C2 and K The provided filter is heated to maintain the filter at a temperature above the dew point, while the return cool air sucked in from the suction port is heated to reduce its specific gravity.

(F) Example Hereinafter, an example of the present invention will be described in detail based on the drawings.

111 is a low-temperature storage such as a prefabricated storage, and this low-temperature storage includes a heat insulating panel (2) that defines a storage room, a heat insulating door (2d) that can open and close the side wall opening of the heat insulating panel, and a freezing device (3). , humidifier for refrigeration equipment (4), and transformer box (
51 etc. Here, the refrigeration device (3)
is attached to one side wall of the low-temperature refrigerator il+, and consists of a cooling unit (6) inside the refrigerator and a condensing unit (7) outside the refrigerator.The cooling unit (
6) consists of the cooler (8), the cooler air blowers (9A) (9B), the auxiliary air blower α0), the cooling unit box αl), etc. installed at the back cold air intake port (9), etc. A cold air outlet α9 equipped with a wind direction plate α2 is formed in the upper part of the cooling unit box Ql). In addition, the circle is a dew pan installed directly below the cooler (8), and this dew pan (14)
A drain pipe (Pl) extends from 1 to the outside. Furthermore, (81 is a temperature sensing element for temperature control, (G is a guard).

The condensing unit α9 includes a condenser αS, a compressor σe,
It consists of a blower αn for heat exchange of the condenser, an outer box αn, etc.

When operating the above refrigeration equipment (3), the blower (9A) (9B)
By operating the auxiliary blower α0), the cold air is circulated as shown by solid arrows in FIGS. 1 and 2, and the interior of the refrigerator is cooled by the heat-exchanged cold air. In addition, the condensing unit (
The blower αD in step 7) is also operated, and air outside the refrigerator is sucked in through the condenser α9 and blown out of the refrigerator from the blower αη.

The humidifier (4) is, for example, an ultrasonic humidifier, and as shown in FIG.
It is attached to one side wall of the In addition, the humidifier (4) is installed in a place that is not easily affected by the cold air circulation in the refrigerator, that is, the humidifier (4)
) is located behind the front surface of the cooling unit (6), and is located higher than the lower surface of the cooling unit (6) so that it does not directly draw in the circulating cold air. moreover,
As shown in Fig. 4, the humidifying device (4) includes, for example, a blower (a), which is a cross-flow fan, and a fog generator (21).
, a blowing device (21a), and the like. Also (2
3 is the connection part for the drain pipe, (C) is the overflow pipe, (
Two chrysanthemums are water filters. Here, fog generator 01)
is an aquarium that stores water (21A), a vibrator in this aquarium, (
21B) etc. Further, a mist outlet is formed from the upper front of the outer box (5) to the front of the upper surface, and a suction port is formed at the lower front of the outer box (3). This suction port t2gl is provided with a filter n for removing dust, and on the top surface of this filter, for example, an IO
A heating device (2) of a W electric heater is provided. The filtero is composed of a metal frame material (5G) and a mesh member 511 made of aluminum mesh, etc.Furthermore, there are mounting members (4) for the humidifier (4) on both the left and right sides of the bottom of the outer box (3).
30) is attached, and these mounting members connect the humidifier (
4) is a hanging member C31) C31) on the ceiling wall of the low temperature storage (1)
suspended through. Further, a humidity regulator (4S) is provided on the side wall of the cooling unit (6). .

Here, when both the refrigeration device (3) and the humidification device (4) are operated, the wind speed is approximately 2 . Om/sec of cold air is blown into the warehouse, and at the same time, the wind speed from the mist outlet (toward) of the humidifier (4) is much slower than that of the cold air, for example, approximately 0.8 m/sec, diagonally forward from the mist outlet side of the humidifier (4). A mist is blown out.Then, this mist is drawn to the cold air by the attraction of the cold air with high wind speed, and the cold air and dew gradually mix and circulate inside the refrigerator, cooling and humidifying the air inside the refrigerator at the same time. .Also, a humidifier (4
) is in operation, the heating device [U is energized and generates heat, so the suction port unit and the filter installed at this suction port (G) are heated to a temperature above the dew point.
The return cold air sucked in from the heating device H is heated by the heating device H, the temperature rises, and the water column (C) generated in the fog generator 121) passes through the humidifying device (4) as shown by the solid line arrow in Fig. 4. The water column passes through the surface and is blown out from the air outlet (toward) containing mist. Note that the temperature rise of the returned cold air due to the heat generated by the heating device σ-D changes depending on the amount of heat generated by the heating device H, that is, the wattage.

Therefore, when cooling operation and humidification operation are performed at the same time, the fog blown diagonally forward from the fog outlet (28) of the humidifier (4) is blown out from the cooling unit (6) and has a higher wind speed than the fog. Since the cold air is attracted by the fast cold attracting action and mixed with the cold air and circulates within the refrigerator, the interior of the refrigerator can be maintained at a predetermined temperature and humidity with less differential. In addition, the humidifier (4) circulates the cold air blown out from the cooling unit (6) inside the refrigerator.
) is located away from the circulation route leading back to ).
The cold air blown out from the cooling unit (6) is transferred to the humidifier (4).
Since the humidifying device and its atmosphere are not directly cooled by the cold air, the temperature inside the refrigerator is lowered to O.
Even when the temperature is set at -2°C, which is lower than oC, the mist blown out from the humidifying device (4) will not accumulate (flow) around the humidifying device, and as a result, the mist will flow around the humidifying device. Frost formation can be avoided.

Also, the blowers (9A) (9B) α(
It is possible to avoid that the circulation of cool air caused by (g) is disturbed by the operation of the blower (2) of the humidifier (4), which blows a small amount of air.

Furthermore, a heating device is installed at the suction port of the humidifier (4).
is provided, and when the humidifying device (4) is in operation, the heating device H generates heat, and the filter [F] of the suction port 09) is heated by heat conduction from the heating device H.
F] can avoid frost formation and dew condensation, and the suction port t29)
The cold air sucked in from the refrigerator is heated by the heating device H and its temperature rises, so air with a lower specific gravity and whose temperature has risen more than the cold air inside the refrigerator flows into the humidifier (4). 21) It is possible to transport a large number of the fog particles generated in step 21), and as a result, the amount of transport is large (4) and the humidification efficiency is good ().

(G) Effects of the Invention Since the present invention is a humidifying device for a refrigeration device as explained in the above embodiment, the suction port of the humidifying device is Since the heating device generates heat and heats the suction port and the filter provided at the suction port, condensation and frost on the suction port and filter can be avoided, and in addition, return cold air Since the specific gravity can be reduced by heating the fog, it is possible to transport a large number of fog particles generated by the fog generator.As a result, a large amount of fog can be transported per hour, improving the humidification efficiency inside the refrigerator. .

[Brief explanation of the drawing]

1 to 6 show an embodiment of the present invention, FIG. 1 is a horizontal cross-sectional view of a low-temperature refrigerator, FIG. 2 is a longitudinal cross-sectional view of the main parts of the low-temperature refrigerator,
FIG. 3 is a schematic vertical cross-sectional view of the refrigeration device, FIG. 4 is a schematic vertical cross-sectional view of the humidifying device, and FIG. 5 is a top view of the filter and heater.
FIG. 6 is a sectional view taken along the line A--A in FIG. 5. (1)...Low temperature storage, (3)...Freezing equipment, (4
)...humidifier, (6)...cooling unit, (8
)...Cooler, (9A) (9B)...Blower for cooler, (13)...Cold air outlet, (2B...
・Mist outlet, (to)...Suction port, σ]...Heating device, Old...Filter. Figure 4 Figure 2 Figure 3

Claims (1)

[Claims] 1. A cooling unit that includes a cooler, a blower for forced circulation of cold air heat exchanged with the cooler, a cold air intake port, and a cold air outlet, and is disposed at an appropriate location in the low-temperature refrigerator and formed on at least one side. a mist outlet, a fog generator, a suction port paired with the fog outlet, which is equipped with a filter and a blower that sucks in a part of the cold air circulating in the refrigerator and blows out the fog generated by the fog generator into the refrigerator; 1. A humidifying device for a refrigeration device, comprising: a heating device disposed at a suction port.