JPH0198873A - Inner box of container for refrigeration - Google Patents

Abstract

PURPOSE: To remarkably enhance cooling effect by forming a cooling tank with numerous cooling tubes arranged in parallel while the respective ends of the cooling tubes are connected to a circulation pipe of brine to keep the cooling tank uniform in temperature. CONSTITUTION: The respective end parts of cooling tubes 31a and 31b are connected to circulation pipes 27, 28, 29 and 30 to form a cooling tank 14a on the rear of a container 11. Furthermore, circulation pipes 32 and 33 are extended ahead of the respective central parts of the circulation pipes 29 and 30 and the end parts of the respective cooling tubes 34 are connected to both sides of the circulation pipes 32 and 33 to form cooling tanks 14b on both sides of the container 11 and cooling tanks on the ceiling surface and on the floor surface thereof. Brine 15 passes through the inside of the container 11 where a number of cooling tubes 31a, 31b and 34 and the like are arranged on the internal wall surface thereof to cool the inside of the storage of the container 11. The cooling tubes are directly branched off the circulation pipes 28, 29 and 33 and the brine 15 also directly flows into the respective cooling tubes to eliminate the temperature difference between the cooling tubes thereby enabling keeping of the temperature of the internal wall surface uniform.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to an inner box of a refrigerated container for cooling and storing one food item, and the R4 is equipped with a cooling tank consisting of a large number of cooling pipes. This relates to the inner box of a refrigerated container.

[Problems to be solved by the prior art and the invention] Various types of containers for refrigerated violet have been proposed in the past, but they are difficult to transport, or the stored foodstuffs are frozen. There were defects such as folding. Therefore, we installed a container equipped with a refrigeration system that can be used in any location.
The applicant is currently applying for a patent (Japanese Patent Application No. 62-054344)
It is.

This pending invention is based on a busy container (1 container) as shown in FIG.
) is covered with a heat insulating material (2), and a full-scale cooling tank (3) is installed inside the heat insulating material (2). The cooling tank (3
) is sealed with brine (4), and the container (
The compression refrigeration equipment (51K) installed on the back side of the cooling tank (3) is therefore used to circulate and cool the brine in the cooling tank (3). Since it can also be driven by the container (not shown), it can be transported to a place where the situation is on the η-exit side.
1) is operated under refrigeration. However, since the cooling tank (3) covers the entire surface of each inner wall, the cooling tank (3)
) The temperature inside the refrigerator was not constant from corner to corner, and there were times when the temperature inside the refrigerator was uneven. Therefore, there is a risk that some of the foodstuffs etc. stored in one container (1)K may become frozen, and there are technical problems that need to be solved in order to overcome these deficiencies. be.

[Means for solving problems]

This invention was proposed as a solution to the above problems, and involves installing a cooling tank on the inner wall of a container equipped with a heat insulating material inside, and filling it with #cooling 4% IK nib line. In addition, in a refrigerated container in which this brine is circulated and cooled by passing through an evaporator of a refrigeration cycle, a large number of cooling pipes are arranged in parallel to form the cooling tank, and each of the core cooling pipes is An object of the present invention is to provide an inner box for a refrigerated container, characterized in that an end of the brine is connected to the brine circulation pipe.

[Effect]

A refrigeration cycle is conventionally known in which the refrigerant is compressed by a compressor, the refrigerant is air-cooled and liquefied by a condenser, and then the refrigerant is vaporized again by an evaporator. Brine in a cooling tank attached to the inner wall of the container circulates through the evaporator to cool the inside of the container. Here, since the cooling tank is formed by arranging a large number of cooling pipes in parallel, the brine cooled in the evaporator passes through the circulation pipe and enters from one end of each cooling pipe at approximately concave temperature. do. Then, while cooling the inside of the refrigerator, it returns to the circulation pipe from the other end of the cooling pipe and is sent to the evaporator again.

each end of the cooling pipe is connected to a circulation pipe;
As described in 5 above, since the brine directly flows into each cooling pipe from the circulation pipe, there is no temperature difference between the cooling pipes, and the cooling tank can be maintained at a uniform temperature. Therefore, the cooling effect can be significantly enhanced, and efficient cooling storage becomes possible.

〔Example〕

Hereinafter, one embodiment of the present invention will be described in detail with reference to the accompanying drawings. For convenience of explanation, conventionally known configurations will also be explained at the same time. Figures 1 to 3 show a refrigerated container.The inside of each wall of the container Qll is covered with a heat insulating material qz, and the front opening is covered with a door (
It is configured to be closed at t3. A cooling tank l'14 is installed on the entire inside of these heat insulating materials az, and brine a9 is sealed in the cooling tank fi4. Further, a compression refrigeration system ae is installed on the back side of the container aυ. This compression refrigeration system Qe is filled with Freon gas as a refrigerant, and the output side of the compressor is connected to the condenser α), and the input side of the III compressor aη is connected to the evaporator 09. Note that a cooling fan Qυ rotated by a fan motor (2) is provided behind the condenser Q8.

Brine a9 is flowing into the evaporator CI'1 by a pump through a circulation pipe connected to the cooling tank Q4, and the refrigerant pipe CI'4 is flowing through this brine 0!19. Passing through. Furthermore, an engine (c) and a motor (not shown) for driving the distributed compressor ση are fixedly installed, and either the engine or the motor can be switched with an appropriate means such as a clutch to serve as the drive source. It will be formed in 5.

Here, the above-mentioned cooling tank a4 will be explained in more detail.

One end (G) of a circulation pipe is connected to the evaporator α9, and the other end (G) of the circulation pipe is installed horizontally at approximately the center inside the rear wall of the container aυ. If you go to the circulation pipe □□□! has been done. and.

Circulation pipes ω are installed in the upper and lower parts of the rear wall in the horizontal direction, respectively, and the circulation pipe
In between, a large number of cooling W (31a) (31a)... and cooling pipes (31b) (31b)... are arranged in parallel, and corresponding cooling pipes (3]aX31a)...lj (31bX31b
)... Each end of the circulating vibrator punishment■t2! Jω
Connect to to cool the back of the container αυ! (14a) is formed. Further, a circulation pipe 83 is extended forward from the central portion of each of the circulation pipes.

Then, a large number of cooling pipes (
B) (To)... is installed vertically, and the upper and lower parts of the secondary cooling g(2) (B) are bent along the ceiling and floor surfaces respectively, and each cooling pipe 04)(2) The end of the circulation pipe C
Connect to both sides of 33ω to cool both sides of container αυ! (14b) (14b) and cooling tanks (14c) (14d) on the ceiling and floor surfaces.

Cooling pipes (3ta x 31g) provided on each wall surface...
, (31b) (31b) --- or cooling pipes (to) (b) --- as shown in Fig. It is covered with a metal plate (to) that is repeated repeatedly. In the same figure, the cooling '! 5F (
31a) (31a) =, (31b The cooling W (31aX31a)..., (
31b
′;! It is also possible to bury it in J and form the inner wall surface flat.

Therefore, in this embodiment, the compression refrigeration equipment (161
is formed in 5 so that either the built-in engine 1251 or the motor can be selected as the driving source, and the container α
Refrigerated operation is possible no matter where υ is transported or installed. Compressor a is driven by the drive source on the side above.
The refrigerant compressed by the compressor aη is transferred to the condenser α
B, and in this condenser agI, it is air-cooled by the cooling fan 12D and liquefied.

The refrigerant is then sent to the evaporator (19) and evaporated in the refrigerant pipe (c), thereby taking away heat from the surrounding brine a5.

Returning again to the compressor G7). That is, the compression refrigeration device Q
The refrigeration cycle of No. 61 consists of compressor aη → condenser (18 → evaporator α9 → compressor αη), and the refrigerant radiates heat and liquefies in condenser σe, absorbs heat from brine α9 in evaporator a9, and becomes gas. liquefaction and vaporization are repeated within the refrigeration cycle.

Then, the brine f151 is sent to the evaporator a9 by the pump, cooled in the evaporator a9, and sent under pressure to the cooling pipe (3mbK3mb) through the circulation pipe.

The brine a9 is connected to each cooling pipe (31bX31b)...
- Cools the back P3 wall of the container αυ while passing through the inside of the container αυ downward. Furthermore, the brine! 1!19 is sent under pressure to the circulation pipe provided on the floor via the circulation pipe (to), and branches into cooling pipes C34)04)... connected to the left and right sides of the circulation pipe (to), respectively. flow into the country. Brine α flowing into this cooling pipe (b) (b)...
9 cools the floor surface while flowing in both the left and right directions, and passes downward through the cooling pipes (B) (to) . Furthermore, the brine (I
cj cools the ceiling while flowing into a circulation pipe c3z provided on the ceiling of the container αυ, and is then pressure-fed to a circulation pipe provided at the upper part of the back surface. And the cooling pipe (
31 a

In this way, the brine 15 has a large number of cooling pipes (31a) (31a) provided on the inner wall surface of the container αυ.
1b)(31b)=C34)(2)... By passing through the inside of the container αυ, the inside of the container αυ can be cooled. Moreover, the cooling pipe (31aX3]a)-, (3
] b
b)", C3404..., so there is no temperature difference between each cooling pipe, and the temperature of the inner wall surface can be maintained uniformly, and there is no unevenness in the internal temperature of the container aυ.

Further, as another embodiment of the present invention, as shown in FIGS. 5 to 7, the cooling pipe (31a
X31b) Instead of (2), use a U-shaped metal plate (to) (to)
... and the metal plate 07) on... may be combined and fixed to form the cooling pipe (to) ■.... in this case,
Connecting pipes WJ (40) bent at right angles at the corners are connected to the upper and lower ends of each cooling pipe @ 關... so that the brine a9 can circulate on each wall surface. Reference numeral 1D denotes a holding plate that connects and holds the cooling pipes.

〔Effect of the invention〕

In this invention, as detailed in the above embodiment, a large number of cooling pipes are arranged in parallel on the inner wall of one container, and cooled brine is circulated by passing through each cooling pipe. Therefore, when cooling the inside of the container, there is almost no difference in temperature between the respective cooling pipes, and there is no unevenness in the cooling temperature of each wall surface.

Therefore, the inside of the fm container is always maintained at a constant temperature, eliminating the worry of some of the stored perishables freezing, and maintaining freshness during loading. It is.

[Brief explanation of the drawing]

Figures 1 to 4 show an embodiment of the present invention, and Figure 1 is a partially cutaway side view of a container. Figure 2 is a cutaway diagram of the A-A line in the tIC1 diagram, and Figure 3 is a cutaway slope diagram of the same section, jl! FIG. 4 is a sectional view taken along line BB in FIG. 1. 5 to 7 show other embodiments, and FIG. 5 is a partially cutaway side view of the container. Figure 6 is a sectional view taken along the line C-C in Figure 5, and Figure 7 is D in Figure 5.
-D line sectional view. FIG. 8 is a longitudinal sectional side view of a conventional container. Code explanation

Claims (1)

[Claims] A refrigerating container in which a cooling tank is attached to the inner wall surface of the container equipped with a heat insulating material inside, the cooling tank is filled with brine, and the brine is circulated and cooled by passing through an evaporator of a refrigeration cycle. An inner box of a refrigerated container, characterized in that the cooling tank is formed by arranging a large number of cooling pipes in parallel, and each end of the cooling pipes is connected to the brine circulation pipe.