JPH02130373A - Mounting structure of water tank for box body for refrigerating transportation - Google Patents

Abstract

PURPOSE:To permit the confirmation of a water level in a water tank and the refilling of water easily from the outside of the title box body by a method wherein the water tank is provided in a box body for refrigerating transporta tion while a level gauge for conforming the water level as well as a water pouring port for the water tank are arranged at the outside of the box body for refrigerating transportation. CONSTITUTION:A water level in a water tank is confirmed by opening upper and lower cocks 42, 43 to confirm the position of the float of a level gauge 39. According to this method, the water level in the water tank, provided in a front corner post, may be confirmed visually from the outside of a box body 1 for refrigerating transportation easily. When the reduction of the water level in the water tank is confirmed by the measurement of the water level, the cock of a water pouring port 46 is opened to supplement the water of a predetermined amount. The confirmation of the water level in the water tank installed in the box body 1 for refrigerating transportation may be effected from the outside of the box body while the supply and supplementation of water into the water tank may be effected very easily in such a manner.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is a large-scale freezer for transporting fresh foods such as vegetables, fruits, seafood, and livestock meat in large quantities without reducing their freshness. This invention relates to a water tank mounting structure for a transportation box.

[Conventional technology]

For example, fresh plant foods such as vegetables, fruits, and flowers;
Alternatively, when transporting fresh animal foods such as seafood and meat, it is extremely important not to reduce the freshness of the fresh foods during transportation and storage.

Moreover, maintaining the freshness of fresh foods often varies considerably depending on the type of fresh foods.

Therefore, in order to optimally maintain the freshness of fresh foods, it is necessary to store them under optimal low-temperature conditions depending on the type of fresh foods.

For example, when fresh foods are vegetables, fruits, and flowers, low-temperature conditions are required within a temperature range that does not cause low-temperature damage.

On the other hand, when the fresh food is seafood or meat,
If freezing causes changes in taste or shelf life,
Low-temperature conditions are required, at least within a temperature range that does not freeze. In addition, in the case of seafood and livestock meat that do not cause problems in taste even when frozen, different low-temperature conditions from those described above are required accordingly.

In order to maintain the freshness of fresh foods, it is necessary to store them under optimal low-temperature conditions depending on the type of fresh foods.
A further consideration is that if the humidity in the storage compartment of the refrigerated container is not maintained within a predetermined range, the freshness of the fresh food will decrease due to a decrease in humidity.

Therefore, as a technique for controlling the humidity in a storage room of a refrigerated container, a humidity control device for a refrigerated container has been proposed, for example, as disclosed in Japanese Utility Model Application Publication No. 63-63671.

In addition to the conventional refrigeration unit that blows air cooled by a refrigerator, this conventional refrigerated container humidity control device detects the humidity of the air inside the box using a humidity detection means, and receives a signal from the humidity detection means. A main cold air flow path and a sub-cool air flow path are installed on the floor of the box, and cold air with controlled temperature and humidity is supplied from the gap between these flow paths or the hole opened upward. It is said that it is possible to uniformly cool the inside of the box by distributing it to every corner of the fresh food loaded in the box through the gaps, and to prevent a drop in humidity inside the storage.

[Problem to be solved by the invention]

In the conventional structure, in order to equalize the temperature and humidity inside the box, a main cold air flow path and a sub-cool air flow path are installed in the floor, and air flows through gaps or openings in these flow paths. Cooling air is blown from the bottom upwards.

However, in the conventional structure, the humidifying means is controlled by a signal from the humidity detecting means, and the structure of the humidifying means itself is extremely complicated, and the water level of the water tank that supplies water to the humidifying means is cannot be easily confirmed from
There are problems such as it is not easy to replenish water.

One object of the present invention is to provide a water tank mounting structure for a refrigerated transport box that allows for easy confirmation of the water level of the water tank provided inside the refrigerated transport box and replenishment of water from the outside. be.

Another object of the present invention is to provide a water tank mounting structure for a refrigerated transport box that allows the water tank to be stably and reliably mounted inside the refrigerated transport box.

Still another object of the present invention is to provide a water tank mounting structure for a refrigerated transportation box that can reliably prevent a level gauge from freezing and/or protect it from external impact.

The above and other objects and novel features of the present invention will become apparent from the description of this specification and the accompanying drawings.

[Means to solve the problem]

A brief overview of typical inventions disclosed in this application is as follows.

The water tank mounting structure of a refrigerated transport box according to the present invention includes a water tank installed inside the refrigerated transport box, and a level gauge for checking the water level of the water tank and a water inlet to the water tank installed in the refrigerated transport box. It is placed outside the transport box.

In this water tank mounting structure for a refrigerated transport box, the water tank may be installed inside a front corner post, and the level gauge and water inlet may be installed outside the front corner post. can.

Further, a tank mounting member may be provided inside the front corner post and is bent into a shape that matches the shape of the water tank.

Furthermore, the level gauge may have a structure in which a drain valve for discharging water in the level gauge is provided at a lower part of the level gauge.

Further, the level gauge may have a structure in which a protection means for protecting the level gauge from external impact is provided on the outside of the level gauge.

[Effect]

In the water tank mounting structure of the refrigerated transport box according to the present invention, the water level of the water tank installed inside the box can be easily checked and water can be replenished using the level gauge and water inlet provided outside the box. be able to.

In addition, in the water tank mounting structure of the present invention, the water tank is installed inside the front corner post, and the level gauge and drain port are installed outside the front corner post, so that it is possible to check the water level in the water tank. Water injection can be performed extremely reliably and easily without being obstructed by other structures.

By providing a tank mounting member bent into a shape that matches the shape of the water tank inside the front corner post, the water tank can be mounted extremely stably and reliably.

Further, by providing a drain valve at the bottom of the level gauge for discharging the water in the water tank, it is possible to prevent the level gauge from being destroyed by freezing even when used in a cold region, for example.

Further, by providing a protection means on the outside of the level gauge to protect the level gauge from external impact, it is possible to prevent the level gauge from being destroyed by impact force from some external means during operation or the like.

〔Example〕

Embodiments of the invention will now be described with reference to the drawings.

Fig. 1 is a side view of a water tank mounting structure of a refrigerated transport box according to an embodiment of the present invention, Fig. 2 is a front view thereof, and Fig. 3 is a schematic side view of the refrigerated transport box according to the present invention. Fig. 4 is a side view of the refrigerated transport box schematically showing the level gauge and water inlet, Fig. 5 is an enlarged partial sectional view of the water tank attachment part in the present invention, and Fig. 6 is in the present invention). FIG. 2 is a longitudinal cross-sectional view showing the entire refrigerated transport box.

First, the overall structure of a refrigerated transport box to which the water tank mounting structure of this embodiment can be applied will be explained. As shown in FIG. The left and right side walls 3 (only one is shown in Figure 6), the ceiling 4, the rear door 5, and the front refrigeration unit 6 form a hexahedral box. A storage chamber 1a for loading cargo is formed inside the body. The necessary parts of these box components are filled with heat insulating material to provide insulation from the outside.

An air supply port (gas supply port) 7, a blower fan 8, an evaporator 9, and a humidifier 10 with a control function are provided at the top of the refrigeration unit 6 at the front of the refrigerated transportation box. At the bottom, there is an air inlet (gas inlet) 11 and a filter for removing ethylene generated from cargo such as vegetables.
and is provided. Although not shown, a compressor is also installed at the front of the refrigerated transport box 1.

On the floor part 2 of the refrigerated transport box l, cooling rails 13 having, for example, a T-shaped cross section are installed in the longitudinal direction, that is, in the front-rear direction (Fig. (left and right direction).

A ceiling lining board 14 is provided on the lower surface of the ceiling section 4 of the refrigerated transport box 1. On the lower side of this ceiling lining board 14, a heat insulating board (plate-shaped body) is provided with a plurality of air circulation holes (gas circulation holes) 17 formed therethrough with a predetermined gap provided by a gap member 15.
16 are fixed and expanded.

Between the ceiling lining board 14 and the heat insulating board 16, there is an air circulation part (gas circulation part) 18 for the circulation of gas such as air.
is formed.

Due to the formation of this air circulation part 18, the cold air supplied from the air supply lower by the blower fan 8 is humidified by the humidifier 10, and then flows into the air circulation part 18.
The air flows downward from above into the storage chamber la of the refrigerated transport box 1 through the air circulation holes 17 . At that time, the insulation board 16
Since a large number of air circulation holes 17 are distributed over a wide area over almost the entire heat insulating board 16, cold air can be evenly supplied to the storage room la of the refrigerated transport box 1 over the entire plane surface. done evenly.

In the vicinity of the entrance of the air circulation section 18, that is, the air supply lower, the refrigerated transport box 1 is provided through the air circulation section 18.
A damper device 19 is installed to prevent hot air from flowing into the storage room la.

That is, the refrigeration unit 6 is provided with a heating device 9a, and the heating device 9a is periodically operated to defrost the inside of the refrigeration unit 6, and the blower fan 8 is stopped. Then, when the blower fan 8 stops, the air near the heating device 9a is heated, and the heat is transferred by natural convection, causing a problem in that the temperature inside the refrigerated transportation box 1 rises. The damper device 19 is provided to solve this problem, and when the blower fan 8 stops during defrosting, the blades 20 of the damper device 19 rotate downward as shown by the two-dot chain line in FIG. Since the air circulation part 18 is blocked,
Heated air does not flow into the air circulation section 18 due to natural convection.

On the other hand, when the blower fan 8 rotates during cooling, the blades 20 swing upward as shown by solid lines in FIG. 6, and cold air flows into the air circulation section 18.

In addition, as shown in FIG. 6, the rear part of the refrigerated transport box I in this embodiment is provided with hot air flowing in (or cold air flowing out) during loading and unloading of cargo 12 into the storage room 1a. ), and the air blocking mechanism 21 is prevented from being directly impacted by, for example, a mast member of a forklift (not shown) for loading and unloading cargo, and applying a direct impact force to the air blocking mechanism 21. A protection mechanism 22 is provided to prevent this.

That is, the protection mechanism 22 is fixedly installed on the lower surface of the ceiling lining plate 14 of the ceiling part 4 at the rear of the refrigerated transportation box l,
A protection plate 25 with a triangular cross section is attached via the mounting member 23 and the mounting plate 24 on the rear side, that is, the right side in FIG. However, the protection mechanism 22 is arranged and fixed so as to protrude further rearward than the air blocking mechanism 21.

A support member 27 having a substantially U-shaped cross section is fixed to one diagonally downward side of the protection plate 25 with a screw (not shown) or the like. An air blocking curtain 28 as an example of the air blocking mechanism 21 is attached to this support member 27 as a locking member (
(not shown). The air barrier curtain 28 may be made of a sheet of plastic material, such as vinyl resin.

Furthermore, as shown in FIGS. 3 and 5, the refrigerated transport box 1 of this embodiment has water tanks 29 on both left and right sides for supplying the required amount of water to the humidifier IO. We are preparing for These water tanks 29 can supply a required amount of water to the humidifier IO through the pipe 31 by operating the water supply pump 30.

In order to install this water tank 29, in this embodiment, a special structure is adopted near the front corner posts 32 on both sides of the front of the refrigerated transport box l. That is, as shown in FIG. 5, front corner posts 32 are installed on both sides of the refrigeration unit 6 at the front of the refrigerated transport box I, but in this embodiment, the front corner posts 32 Inside the tank mounting member 33
is attached with the refrigeration unit mounting bolts 34, and the tank mounting member 33 is bent into an abbreviated shape suitable for mounting the water tank 29. A tank 29 is installed.

With this water tank mounting structure, the water tank 29 can be stably installed, and moreover, it is possible to reliably prevent external force from being applied to the water tank 29 and causing its destruction.

In FIG. 3, numeral 35 is a spray nozzle of the humidifier 10, and 36 is a drain pan for collecting defrost drain during defrosting.

In addition, as shown in FIGS. 1, 2, 4, and 5, in the water tank mounting structure of this embodiment, the water level in the water tank 29 is adjusted to the refrigerated transport box 1 or the front corner post. It can be visually confirmed from the outside of 32.

That is, from the top and bottom of the water tank 29 to the pipe 3
7 and 38 respectively pass through the front corner post 32 and are led out to the outside, and the outer ends of the pipes 37 and 38 are connected to a level gauge 39 for visually checking the water level of the water tank 29 from the outside.

The level gauge 39 is, for example, a transparent plastic tube 4.
It has a structure in which a float 41 (Fig. 2) moves up and down in accordance with the water level in the water tank 29, and has weather resistance, impact resistance, chemical resistance, and cold resistance. A cock 42, 43 is provided at the upper end and lower end of the tube body 40, respectively.

Further, a drain valve 44 is provided below the cock 43 to drain water from the water tank 29 in order to prevent the level gauge 39 from freezing when used in a cold region, for example.

Furthermore, a protective net (protection means) 45 is provided on the outside of the tube 40 of the level gauge 39 to prevent the tube 40 from being destroyed due to some kind of large external impact being applied to the tube 40. It is supposed to be done. Although not shown, one side of the protective net 45 is removably attached to the outer surface of the front corner post 32 with a screw or the like, and the other side is supported by a screw mechanism so that it can be opened and closed.

Further, as shown in FIG. 4, in this embodiment, a hole is provided on the outside of the front corner post 32 on the side opposite to the side where the level gauge 39 is provided, for supplying and replenishing water to the water tank 29. A water inlet 46 is provided.

This water inlet 46 allows the water tank 29 to be refilled with water extremely easily.

The operation of this embodiment will be explained below.

First, to explain the refrigeration cycle of this embodiment, when cargo 12 is loaded into the storage room 1a inside the refrigerated transportation box 1 and the refrigeration unit 6 is operated, the blower fan 8 works to blow cooling gas (for example, cooling The air) passes through the evaporator 9, is humidified to an appropriate humidity by the humidifier 10, passes through the damper device 19 in an open state, and then enters the refrigerated transport box 1.
The air is supplied to an air circulation section 18 formed between the upper ceiling section 4 and the heat insulating board 16.

The cooling gas supplied to the gas circulation section 18 flows from above to below into the storage chamber la inside the refrigerated transport box 1 through a large number of air circulation holes 17 formed in the heat insulating plate 16. At this time, since a large number of air circulation holes 17 of the heat insulating plate 16 are formed over a wide area of the heat insulating plate 16, the cooling gas is distributed throughout the storage chamber 1a in the plane direction through the air circulation holes 17. It flows evenly and evenly spreads to every corner of the storage chamber 1a.

Therefore, the temperature in the storage chamber la of the refrigerated transport box 1 is kept extremely uniform throughout, and the cargo 12 can be stored under optimal low temperature conditions throughout.

In this way, the cooling gas that has flowed into every corner of the storage chamber 1a of the refrigerated transportation box 1 flows from above to below while cooling the cargo 12 to the optimum temperature, and flows through the cooling rails on the floor 2.
The air flows approximately horizontally (leftward in FIG. 1) from the rear to the front through the axial gap between the refrigeration units 6 and is sucked into the refrigeration unit 6 from the air intake port 11 at the bottom of the refrigeration unit 6. Then, by the action of the blower fan 8, the air is circulated from the refrigeration unit 6 through the air circulation section 18 and the air circulation hole 17 to the storage room 1a.

Next, in this embodiment, a case will be described in which the water level in the water tank 29 is checked and water is replenished.

That is, when checking the water level in the water tank 29, the water level in the water tank 29 is checked by opening the upper and lower cocks 42 and 43 and visually checking the position of the flow gauge 41 on the level gauge 39. Thereby, the water level in the water tank 29 installed inside the front corner post 32 can be easily visually confirmed from the outside of the refrigerated transport box 1.

As a result of this water level measurement, if the water level in the water tank 29 is lower than a predetermined water level, the tap of the water inlet 46 is opened to replenish the required amount of water.

Note that, for example, when the refrigerated transport box 1 is used in a cold region, the water remaining in the level gauge 39 may freeze and destroy the pipe body 40 of the level gauge 39. In such a case, turn on the cock 42 after measuring the water level.
．． 43 and open the drain valve 44, the water in the level gauge 39 is discharged to the outside, and destruction due to freezing can be reliably prevented.

According to this embodiment, the following excellent effects can be obtained.

(1) The water tank 29 is installed inside the front corner post 32, that is, inside the refrigerated transport box l, but the level gauge 39 that allows you to check the water level in the water tank 29 is located outside the front corner post 32. In other words, since it is installed outside the refrigerated transport box 1, the water tank 2
9 can be visually confirmed very easily from the outside.

(2) Since the tank mounting member 33 is provided inside the front corner post 32 and is bent into a shape that matches the shape of the water tank 29, the water tank 29 can be mounted stably and reliably. be able to.

(3) Since the water tank 29 is attached to the inside of the front corner post 32, it is possible to eliminate the possibility that the water tank 29 will be destroyed due to external force being applied to the water tank 29.

(4), the level gauge 39 is placed at the bottom of the level gauge 39;
Since a drain valve 44 is provided to drain the water inside, it is possible to prevent the level gauge 39 from being destroyed due to freezing.

(5) Since the protective net 45 is provided on the outside of the level gauge 39, it is possible to prevent the level gauge 39 from being damaged by the impact force caused by external force being applied to the level gauge 39.

(6) Water inlet 46 for supplying water to the water tank 29
is provided on the outside of the front corner post 32, so that water can be supplied and replenished to the water tank 29 very easily.

As above, the invention made by the present inventor has been specifically explained based on Examples, but it should be noted that the present invention is not limited to the Examples and can be modified in various ways without departing from the gist thereof. Not even.

For example, the structure, mounting position, and number of the level gauge 39 and the water inlet 46 are not limited to those in the embodiment described above.

Further, in place of the protection net 45, protection means having another structure may be used.

Further, as the cooling gas, other than air, a gas such as nitrogen gas (N2) may be used (and such a case is also included in the present invention).

In the above explanation, the invention made by the present inventor was mainly applied to the field of application, which is a box body for refrigerated transportation such as a so-called marine container. The present invention can also be applied to a refrigerated transport box as a large land container for land transport.

Of course, the present invention also includes those that are used in an installed state without being transported.

〔Effect of the invention〕

Among the inventions disclosed in this application, the effects obtained by typical inventions are briefly described below.

[1) A water tank is installed inside the refrigerated transport box, and a level gauge for checking the water level in the water tank and a water inlet to the water tank are arranged outside the refrigerated transport box. This makes it extremely easy to check the water level of the water tank installed inside the box from the outside, and it is also extremely easy to supply and replenish water to the water tank.

(2) According to (1) above, it is possible to prevent the water tank from being destroyed by impact caused by external force.

(3) The water tank is installed inside the front corner post, and the level gauge and water inlet are installed outside the front corner post, so that the water tank is protected from external force and the box body is protected. The water tank can be reliably installed by making effective use of space.

(4) Inside the front corner post,
Since the tank mounting member is bent and formed into a shape that matches the shape of the water tank, the water tank can be stably and reliably mounted.

(5) A drain valve is provided at the bottom of the level gauge to drain the water in the water level gauge, so that the level gauge remains in the water even when used in cold regions, for example. It is possible to reliably prevent damage caused by freezing of water.

(6) A protective means for protecting the level gauge from external impact is provided on the outside of the level gauge, thereby reliably preventing the level gauge from being destroyed by external impact. Can be done.

[Brief explanation of the drawing]

Fig. 1 is a side view of a water tank mounting structure of a refrigerated transport box according to an embodiment of the present invention, Fig. 2 is a front view thereof, and Fig. 3 is a schematic diagram of a refrigerated transport box according to the present invention. FIG. 4 is a side view of the refrigerated transport box schematically showing the level gauge and water inlet, FIG. 5 is an enlarged partial sectional view of the water tank attachment part according to the present invention, and FIG. It is a longitudinal sectional view showing the whole box for frozen transportation in. 1... Box for frozen transport, 1a... Storage room, 2... Floor, 3... Side wall, 4... Ceiling, 5... ... Opening/closing door, 6... Refrigeration unit, 7... Air supply port (gas supply port), 8...
Blower fan, 9... Evaporator, 9a... Heating device, 10... Humidifier, 11... Air inlet (gas inlet), 11a ・
・ ・ ・Filter, 12...Luggage, 13...Cooling rail, 14...Ceiling lining board, ・Gap member, ・Insulation board (plate-like body), ・Air circulation hole (・Air circulation part (gas circulation part), ・Damper device, ・Blade, ・Air blocking mechanism, ・Protection mechanism, ・Mounting member, ・Mounting plate, ・Protective plate, ・Protective material, ・Supporting member , ・Air blocking curtain, ・Water tank, ・Water supply pump, ・Pipe, ・Front corner post, ・Tank mounting member, ・L-shaped bent part, ・Freezing unit mounting bolt, ・Spray nozzle, ・Drain pan, ・Pipes, ・Level gauge, ・Pipe body, ・Float, ・Cock, ・Drain valve, ・Protective net (protective means), ・Water inlet.

Claims (1)

[Claims] 1. A water tank is installed inside the refrigerated transport box, and a level gauge for checking the water level of the water tank and a water inlet to the water tank are installed outside the refrigerated transport box. A water tank mounting structure for a refrigerated transport box characterized by the following: 2. The water refrigerated transport box according to claim 1, wherein the water tank is installed inside the front corner post, and the level gauge and water inlet are installed outside the front corner post. Tank mounting structure. 3. The refrigerated transport box according to claim 2, wherein a tank mounting member is provided inside the front corner post and is bent and formed into a shape that matches the shape of the water tank. Water tank mounting structure. 4. The water refrigerated transport box according to claim 1, 2, or 3, wherein a drain valve for discharging the water in the level gauge is provided at a lower part of the level gauge. Tank mounting structure. 5. The refrigerated transport box according to claim 1, 2, 3, or 4, wherein a protection means is provided on the outside of the level gauge to protect the level gauge from external impact. water tank mounting structure.