JPH0730992B2 - Flower showcase - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application] The present invention relates to a cooling showcase for flowers suitable for storing fresh flowers (also called cut flowers).

2. Description of the Related Art In Japanese Utility Model Publication No. 53-19473 (70B / 8), the case body is divided into a front flower display space and a rear cool air generation space,
An air curtain device is provided at the front end of the flower arrangement display space, and a cooler provided in the cool air generation space, a slit for sending the cool air generated by the fan to the flower arrangement display space is formed above the partition plate that separates both spaces, Furthermore, a plurality of water-filled containers containing fresh flowers are installed in the fresh flower display space, glass plates are fitted on part of the left and right side surfaces of the case body, and an empty room equipped with a compressor and overflow water container is provided below the substrate. In addition, the water-filled container is arranged in a staircase, and the water-filled container is provided with a staggered hole for inserting fresh flowers. The water-filled container is provided with an overflow pipe facing the lower water-filled container, and a pump. Shows a configuration of a showcase for selling fresh flowers in which the lowest water container and the highest water container are connected by a pipe, and the meandering portion of the pipe is brought into contact with the cooler.

Problems to be Solved by the Invention According to the above conventional technique, the cold water cooled by the cooler flows from the uppermost water-containing container to the lowest water-containing container, and a temperature rise occurs in the cold water during this period, The cold water temperature of the lowest water container was higher than the cold water temperature of the highest water container, and the cold water temperature was different for each container.As a result, the storage period of fresh flowers in each container was different. .

Also, during the cooling operation of the cooler, the water vapor is evaporated from the petals and leaves of the cut flowers by the evaporation effect of the forced circulation air flow, and the water supply to the petals and leaves due to the capillary phenomenon of the cut flowers does not catch up with the evaporated water, and the cut flowers themselves Since the water content was reduced, the life of the flowers was shortened, and there was a problem that the display period of cut flowers was short and the product value was apt to decline.

Furthermore, in addition to the dust generated from the atmosphere and cut flowers, a precipitate caused by the decay of water itself settles down in the aquarium, blocking the cut flower conduits and making it impossible to suck up water. There was also.

Therefore, the present invention provides a flower cooling showcase in which a humidifying device for humidifying a storage chamber is arranged and the operation of the humidifying device is matched with the operation of the evaporator.

[Structure of Invention]

Means for Solving the Problems The flower cooling showcase of the present invention has been made in view of the above-mentioned problems, and includes a cool air passage for storing an evaporator and a blower fan for generating a forced circulation air flow, and a forced circulation air flow. A cooling water tank having a storage chamber that is cooled and stores cut flowers, a cooling water tank that is disposed in the storage chamber, and has a cut flower dip immersed in the lower portion and connected in parallel to the evaporator, and cooling the storage chamber with the evaporator A humidifying device that is operated during operation and that is stopped during defrosting operation of the evaporator, and a drainage device that discharges water from the water tank, and the drainage device is provided with a drain valve for simultaneously discharging water from each water tank. It is a thing.

The humidifying device that humidifies the working storage room is operated during the cooling operation of the evaporator and stopped during the defrosting operation, so that it is gradually dehumidified by the forced circulation air flow during the cooling operation. The chamber is forcibly humidified and acts to supply water directly to the petals and leaves of the cut flowers, and during defrosting operation of the evaporator, the steam from the defrosting water humidifies the inside of the storage chamber to humidify it. The forced humidification by the device is stopped to prevent the storage room from becoming over-humidified.

In addition, since a cooler connected in parallel to the evaporator is provided at the bottom of the water tank to cool the water in each water tank substantially uniformly, let's suppress the spoilage of water in each water tank substantially uniformly. I am trying.

Furthermore, because a drainage device having a drainage valve that simultaneously discharges water from each water tank is provided to replace all water in the water tank on a regular basis, in addition to dust from the atmosphere and cut flowers, it is also caused by the decay of water itself. We are trying to prevent the cut flowers from blocking the conduits and making it impossible to suck up water.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

Reference numeral 1 is a flower cooling showcase which comprises a pair of left and right heat insulating side plates 3 and 3 each having a see-through plate 3A, and a main body is constituted by a heat insulating wall 2 having an opening 4 formed on the front surface thereof. A partition plate 5 is arranged at a more appropriate interval, a storage chamber 6 is provided, a plate fin type evaporator 8 is provided in the back area 7A, and an air blower 9 including an axial flow type fan and a fan motor is provided in the bottom area 7B. A cool air passage 7 in which a fan case 10 for supporting a fan is housed and arranged, and outlets and suction ports 11 and 12 facing each other along the upper and lower ends of the opening 4 are formed.
The cold air that has been heat-exchanged in step 1 is forcedly circulated by the blower 9 as shown by the arrow in FIG. 1 to form a cold air curtain (AC) in the opening 4 to cool the storage chamber 6. The speed of the forcedly circulated cold air that forms the air curtain (AC) is preferably 1 m / sec or less, considering that the stored material is cut flowers and dislikes extreme dryness.

A pair of left and right metal closing plates 13 (one of which is not shown) having inwardly facing flanges 13A are arranged on both left and right sides of the bottom area 7B of the cold air passage 7, and the flanges 13
A is a metal strip 1 that crosses the center of the top surface of bottom area 7B.
Both ends of 4 are attached. The blower fan 9 and the fan case 10 are located rearward on the leeward side of the drain port 15 formed in the bottom wall 2C of the heat insulating wall 2. The fan case 10 has its lower end attached to a slender support member 17 arranged on the bottom wall 2C via a hinge 16, and its upper end abuttingly mounted on the crosspiece 14 positioned behind the support member. Therefore, the hinge 16 is arranged so as to be inclined downward and can be rotated in the front-rear direction by the hinge 16. Since the support member 17 crosses the upper surface of the bottom wall 2C, a drainage channel 18 for flowing the drain from the evaporator (8) to the drainage port 15 is provided.
Are formed.

The partition plate 5 includes a top plate portion 20, an upper back plate portion 21, and the evaporator 8.
A lower back plate portion 22 located at the front part of the lower back plate portion, a frontward flange 22A at the lower edge of the lower back plate portion and a removable bottom plate portion 23 mounted on the crosspiece 14, and an upper portion that covers the suction port 12. It is composed of a through hole 25 and a front plate portion 24 having a rearward facing flange 26 formed at a lower portion thereof, and the lower end of the upper back plate portion 21 and the upper end of the lower back plate portion 22 are overlapped with each other so that a stopper 27 such as a screw 27 It has been fastened.

30 to 32 are a plurality of shelves arranged in a staircase, that is, a step-like shape in the storage chamber 6, and are rising pieces 33 that stand up along the front edge.
A plate material 35 having a hanging piece 34 hanging down along the rear edge, a heat insulating material 36 arranged on the plate material, and cooling pipes 37 arranged on the heat insulating material and bent in a U shape. A plate-shaped cooler 41 including a heat transfer plate 40 made of metal and 39 for housing this cooling pipe
It consists of ~ 43 and respectively. The respective shelves 30 to 32 are connected and connected to each other by two pairs of left and right pairs of columns 44 and 45 also serving as connecting members and a plurality of stoppers 46 such as screws, and the rear edge of the upper shelf 30 is formed. The hanging piece 34 is attached by fixing it to the upper back plate portion 21 with a stopper 46, and the lower end of the lower column 45 is attached to the flange 13A of the closing plate 13 with a stopper 46.

The cooling pipes 37 to 39 of each of the shelves 30 to 32 are connected in series to each other as shown in FIG. 3, and are connected in parallel to the evaporator 8. Pressure reducing devices 47, 48 such as expansion valves and solenoid valves 49, 50 are connected in series on the refrigerant inlet side of the evaporator 8 and the upper cooler 37, respectively. In the figure, 51 is a refrigerant compressor, 52
Is a condenser, 53 is a liquid receiver, 54 is a gas-liquid separator, 55 is a suction pressure adjusting valve, and these refrigeration parts are installed on the ceiling wall 2A of the heat insulating wall 2. The both solenoid valves 49, 50 have the outlet 11
Also, they are opened and closed on the basis of signals from temperature sensors 56 and 57 arranged in the lower-stage water tank, which will be described later, and connected to the ends of the flexible wires.

60-62 is a cooling water tank which is detachably mounted on each of the shelves 30-32, and which is cooled by the corresponding coolers 41-43 and has a metal upper surface opened, and the back wall 63B of each water tank is It is located above the front wall 63A. It is preferable that each of the water tanks 60 to 62 is made of a metal such as copper, which has a sterilizing and antibacterial action by dissolving metal ions in water. Reference numeral 64 denotes a gutter arranged below the front part of the lower water tank 32, which is provided with a drain pipe 65 whose lower end is located in the vicinity of the bottom wall 2C of the heat insulating wall 2 so that water overflowing from the lower water tank 32 is blown by the blower 9 It is designed so that it does not scatter. This gutter 64 also serves as a part of the partition plate 5,
The front end thereof contacts the rearward facing flange 26 of the front plate portion 24, the back wall 66 contacts a later-described hanging wall of the lower water tank 62, and both left and right ends are mounted on the flange 13A of the closing plate 13.

67 to 69, 70 to 72 are attached to the respective water tanks 60 to 62, and are a pair of upper and lower metal guides for guiding the fresh flowers to be put in the respective water tanks. The upper guides 67 to 69 are the backs of the respective water tanks 60 to 62. Wall 63B
Further, the lower guides 70 to 72 are attached to the front walls 63A of the water tanks 60 to 62, respectively, so as to be inclined forward and upward. Each of the lower guides 70 to 72 has a hanging wall 73 extending below each of the shelves 30 to 32, and when each of the water tanks 60 to 62 is placed on each of the shelves 30 to 32, the upper water tank is placed. The hanging wall 73 of 60 is the back wall 63 of the aquarium 61 in the middle tier.
The hanging wall 73 of the middle water tank 61 overlaps the front surface of B, and the hanging wall 73 of the middle water tank 61 overlaps the front wall 63B of the lower water tank 62.
3 overlaps the front of the back wall 66 of the gutter 64. 74 to 76 are the aquariums 6
The water level of each water tank 60-62 is set by the overflow channel formed in the upper end of the front wall 63A of 0-62, and the upper part of each lower guide 70-72. 7
Reference numerals 7 and 78 denote overflow water intake passages formed in the upper guides 68 and 69 of the middle and lower water tanks 61 and 62. Reference numeral 80 is a water supply pipe for supplying water to the upper water tank 60, and is provided with a water supply valve 81 that is opened periodically for a predetermined time.

When this water supply valve 81 is opened, the water tank 80 from the water supply pipe 80
Water is supplied to the water tank, and when the water level in this tank exceeds the set value, the water that has passed through the overflow channel 74 and the overflow water intake path 77 is poured into the water tank 61 in the middle stage. Road 75
And the water that has passed through the overflow water intake path 78 is poured into the lower water tank 62,
When the water level in this tank exceeds the set value, the overflowing water is discharged from the overflow channel 76 and the gutter 64 onto the bottom wall 2C, and further through the drain port 15 to the outside. That is, this drainage is performed as shown by the one-dot chain line arrow in FIG.

Reference numeral 82 denotes a drainage device for simultaneously discharging the water in each of the water tanks 60 to 62. The main pipe 83 is a hard main pipe, three branch pipes 84, 85, 86 are hard pipes branching from the main pipe, and the branch pipes are simultaneously opened and closed. Electromagnetic drain valve 87, 88, 89.

Reference numerals 90 to 92 denote three boards arranged so as to cover the respective water tanks 60 to 62 in front of the water tanks and inclined forward and downward, and a plurality of rows are formed in a portion facing each of the water tanks 60 to 62. Circular holes 93 to 95 are formed. The holes 93 to 95 are formed so as to have different diameters, and have a large opening area from the upper stage to the lower stage. Through these holes 93 to 95, cut the bouquets H1 to H3 in which the cut flowers are bundled as shown in FIG.
When immersed in 30 to 32 cold water, each bouquet H1 to H3 hits the edge of each hole 93 to 95 and is stored and displayed with a downward slope. The portion other than the one soaked in is cooled by the cold air in the storage chamber 6.

Reference numeral 96 denotes a color display in which flowers are printed on a translucent plate, which is arranged on the upper part of the storage chamber 6 so as to be inclined rearward and downward, and is illuminated from the back side by a plurality of lights 97 arranged rearward.

According to the above configuration, each water tank 60-62 is a cooler for each shelf 30-32.
Since it is cooled by the so-called direct cooling method that is individually cooled in 41 to 43, the cold water in each water tank 60 to 62 can be maintained at the same temperature, and the storage period of the fresh flowers H1 to H3 in each water tank 60 to 62 is made uniform. Can be achieved.

On the other hand, 100 shown in FIG. 1 is a humidifying device for humidifying the inside of the storage chamber 6, which is supplied with water from a water supply pipe 80 through a water supply valve 101 for humidification and which has an ultrasonic humidifier or a water tray. A moisturizing means such as a heater may be used.

Next, the control device 102 for controlling the operation of the humidifying device 100 will be described with reference to FIG.

111 is an AC power source, 112 is a condenser fan motor, 113 is a compressor motor, 114 is a fan motor for continuous operation in the blower 9, and 115 is a defroster that causes the evaporator 8 to periodically perform off-cycle defrosting for a certain period of time. A frost timer, 116 is a normally open timer contact that is closed by the defrost timer 115 for a fixed time (for example, 10 minutes), 117 is a relay coil, and 118 and 119 are first normally closed that are opened when the relay coil 117 is energized. The second relay contact 120 is a thermostat that controls the operation of the compressor motor 113 based on the temperature inside the storage chamber 6.

The operation of the humidifier will be described based on the above configuration.

The condenser fan motor 112, the fan motor 114, and the compressor motor 113 are operated by the power supply 111, and the refrigerant is circulated during the refrigeration cycle to cool the storage chamber 6 by the evaporator 8 and the cooling water tank by the cooling pipes 37 to 39. Cool 60 to 62. When the temperature of the storage chamber 6 becomes equal to or lower than the opening temperature of the thermostat 120 due to the continuous cooling operation, the thermostat 120 operates to open, the compressor motor 113 stops, and the storage chamber 6 and the water tanks 60 to 62 are cooled. Is stopped (at this time, the cooling operation of the evaporator 8 is stopped). When the temperature inside the storage chamber 6 rises due to the stop of the cooling to reach the return temperature of the thermostat 120 or higher, the thermostat 120 returns (closes), the compressor motor is operated again, and cooling is performed. Thereafter, the above-described operation is repeated to maintain the storage chamber 6 at a predetermined temperature (a temperature of about 5 to 10 ° C suitable for storing cut flowers). Stopping the operation of the compressor motor by the thermostat 120 is called a cooling operation.

On the other hand, the humidifying device 100 is continuously operated during the above-described cooling operation to humidify the inside of the storage chamber 6.

On the other hand, when the defrost start time is reached by the defrost timer 115,
The timer contact 116 closes, the relay coil 117 is energized, and the first and second relay contacts 118 and 119 open.
Therefore, the humidifying device 100 and the compressor motor 113 are stopped. At this time, the fan motor 114 is operated,
The frost adhering to the surface of the evaporator 8 is gradually evaporated by the circulating air flow (by so-called off-cycle defrosting) and is returned to the inside of the storage chamber 6 so that the storage chamber 6 is humidified. At this time, since the humidifying device 100 is stopped, the excessive humidification state of the storage chamber 6 is avoided.

Then, after a lapse of a fixed time (10 minutes in this example), the timer contact 116 is opened, the energization of the relay coil 117 is cut off, and the first and second relay contacts 118 and 119 are closed. As a result, the humidifying device 120 restarts operation to humidify the storage chamber 6, and the compressor motor 113 restarts operation to perform cooling operation.

[Effects of the Invention] According to the present invention as described above in detail, since the humidifying device is operated during the cooling operation, the fog droplets due to humidification adhere to the petals and leaves of the cut flower, and therefore, due to the forced circulation cold air flow. It is possible to suppress the evaporation of water from the petals and leaves, while the dehumidifying operation stops the humidifier, but the dew attached to the evaporator is vaporized by the evaporating action of the circulating air flow and stored in the storage room. Because of the reduction, the storage chamber can be humidified, and the humidification associated with defrosting and the humidification by the humidifying device are not performed at the same time, and it is possible to avoid an excessive humidification state. As a result, it is possible to cool and store the cut flowers that are stored while being dried, and thus it is possible to suppress the shortening of the cut flower survival time associated with the cold storage, and it is possible to prolong the exhibition and sales period.

In addition, since a cooler connected in parallel to the evaporator is provided in the lower part of the water tank to cool the water in each water tank substantially uniformly, the spoilage of water in each water tank is suppressed substantially uniformly. be able to.

Furthermore, because a drainage device having a drainage valve that simultaneously discharges water from each water tank is provided to replace all water in the water tank on a regular basis, in addition to dust from the atmosphere and cut flowers, it is also caused by the decay of water itself. It is possible to prevent that the conduit of the cut flower is blocked by the sediment and the water cannot be sucked up.

[Brief description of drawings]

Each drawing shows one embodiment of the showcase of the present invention, FIG. 1 is an overall longitudinal sectional view, FIG. 2 is a longitudinal sectional view of an essential part of FIG. 1, and FIG.
FIG. 4 is a refrigerant circuit diagram, FIG. 4 is a front perspective view of the whole, and FIG. 5 is a schematic electric circuit diagram. 1 ... Flower cooling showcase, 6 ... Storage room, 7 ... Cold air passage, 8 ... Evaporator, 9 ... Blower, H1-H3 ... Cut flowers, 60-62 ... Cooling water tank, 100 ... … Humidification device, 102… Control device.

Claims (1)

[Claims] 1. A cold air passage for accommodating an evaporator and an air blower for generating a forced circulation air flow, a storage chamber for storing cut flowers cooled by the forced circulation air flow, and a cut flower cut port arranged in the storage chamber. A cooling water tank having a cooler immersed in the lower part and connected in parallel to the evaporator, and a humidifying device which is operated in the storage chamber during a cooling operation of the evaporator and stopped during a defrosting operation of the evaporator, A cooling showcase for flowers, comprising: a drainage device for draining water from the aquarium, the drainage device comprising a drainage valve for simultaneously draining the water from each aquarium.