JPH03287485A - Cooled liquid carrying vessel - Google Patents

Abstract

PURPOSE:To efficiently cool a cooled liquid in an inner tank by storing the inner tank independently from a hull in a hold surrounded by a heat insulating material, forming a cooling air circulating air duct surrounding the outer periphery of the inner tank, and circulating the cooling air with an air cooler. CONSTITUTION:A heat insulating material 31 is stretched all over the inner periphery of a hold 23 and the inner periphery of a cooling room 30 of a carrying vessel of a cooled liquid such as juice, and spacers 33 are provided at an interval. An inner tank 35 for the cooled liquid is stored in a hold 23, the inner tank 35 is supported via the spacers 33, and a cooling air circulating air duct 38 surrounding the outer periphery of the inner tank 35 is formed between the outer periphery of the inner tank 35 and the inner periphery of the hold 23. A partition 39 partitioning a suction section 30a on the right side and a discharge section 30b on the left side is provided in the cooling room 30, an air cooler 42 penetrating the partition 39 is provided on the partition 39, and the cooling air is circulated in the cooling air circulating air duct 38 by its action.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a cooling liquid carrier for transporting cooling liquid such as juice in bulk and keeping it cool.

BACKGROUND OF THE INVENTION FIG. 8 shows a conventional cooling liquid carrier which is configured as a cargo tank with an inner tank 3 for cooling liquid or an integral tank construction. In this Fig. 8, both sides of the hull are space parts S1.
The inner tank 3 is constructed of a double outer plate 1°2, with the inner outer plate 2 directly forming the left and right side surfaces of the inner tank 3. The bottom of the ship is composed of double bottom plates 7 and 8 so as to have a ballast tank 5, and an upper bottom plate (tank top).
8 directly forms the bottom surface of the inner tank 3, and by draining seawater from the ballast tank 5 during transport of the cooling liquid, the ballast tank 5 is used as a space S2 for heat isolation. The upper surface of the inner tank 3 is covered by an upper deck 10.

A cooling cylinder] 3 and a stirring impeller 14 are immersed in the inner tank 3, and a refrigerant pipe 15 using Freon gas or the like as a cooling medium is installed in the cooling cylinder 13, and is connected to a cooling unit 17 outside the inner tank 3. ing.

The stirring impeller 14 is connected to and driven by a moss 18 outside the inner tank 3.

When transporting cooling liquid, the inner tank 3 blocks heat from entering from the seawater through the surrounding spaces SL and S2, and inside the inner tank 3, the stirring impeller 14 sucks the cooling liquid from below into the cooling cylinder 13. By cooling and discharging from above, the liquid itself is directly cooled and circulated in the west tank 3. However, the conventional drawing as shown in FIG. 8 has the following problems.

(1) Both sides and bottom of the inner tank 3 have a space St in width,
Since it is only shielded from the seawater by the static IF air inside S2, we cannot expect much of a heat insulation effect. Further, the upper deck 10 on the upper surface of the inner tank 3 is exposed to direct sunlight and its temperature increases. Due to these factors, a rise in temperature within the inner tank 3 is unavoidable, making it difficult to control the temperature.

(2) Although the cooling liquid is stirred and circulated, the refrigerant pipe 15 and stirring impeller 14 are directly immersed in the cooling liquid to directly and locally cool the highly viscous cooling lubricant, etc. Therefore, it is difficult to control the circulation flow rate by the stirring impeller 14, and there is a risk that the cooling liquid may freeze in the cooling cylinder 13 and stop circulating.

[Object of the Invention] The object of the present invention is to effectively block heat from entering from outside such as seawater and sunlight, and to cool the entire inner tank from the outer circumferential surface of the inner tank with cold air. The object of the present invention is to enable the entire cooling liquid in the inner tank to be cooled uniformly and efficiently, and to solve the problems of the above-mentioned conventional techniques.

[Technical means for achieving the object] In order to achieve the above object, the invention of Claim 1 of the present application is as follows:
A heat insulating material is provided on the inner circumferential surface of the hold, and an inner tank for cooling liquid with an independent tank structure is housed. A cooling air circulation path is formed between the outer circumferential surface of the inner tank and the inner circumferential surface of the hold, and an air cooler having a fan is provided in the upper part of the cooling air circulation path;
The air cooler circulates cooling air through the cooling air circulation path (c).

The invention according to claim 2 is suitable for cases where the capacity of one inner tank is too large, and the cooling effect is improved by dividing the inner tank into left and right halves so that the entire outer peripheral surface of each can be cooled. I'm letting you do it.

In other words, a cut paulownia wood is installed on the inner circumferential surface of the hold, and an inner tank for cooling liquid with an independent tank structure divided into two on the left and right is housed in the hold, and a distance is maintained between the inner circumferential surface of the hold and the above-mentioned inner tank. Support each of the above inner tanks through the Niijima spacer as shown in P.
By interposing a central spacer between them so that there is a space between the inward tanks,
A cooling air circulation path is formed on the outer circumferential surface of each mountain tank, and an air cooler with a fan is placed above the inner tank. circulate.

The invention as claimed in claim 3 is a structure in which the structure of the inner tank is devised so as to further improve the cooling effect. On the outer circumferential surface of the tank, short reinforcing bones extending in the front-rear direction are formed, and tall frame-shaped large bones are provided at multiple locations spaced apart in the front-rear direction to surround the inner tank. Cooling air is circulated in the cooling air circulation path along the large bone using the large bone as a guide.

[Embodiment of the invention claimed in claim 1] Figures 1 and 2 show a cooling liquid carrier to which the invention claimed in claim 1 of the present application is applied, and Figure 1 (II cross section in Figure 2)
In this case, the right and left sides of the hold 23 are formed by outer plates 25 of the hull, the lower side is formed by an upper bottom plate 26 of a double bottom having a ballast tank 24, and the upper side is covered by an earthen wall (upper deck) 27. There is. Cooling chambers 30 are formed in the upper portion 927 in an upwardly projecting manner along substantially the entire length of the cargo hold 23 in the longitudinal direction.

A heat insulating material 31 is placed over the entire inner peripheral surface of the hold 23 and the cooling chamber 30. The heat insulating material 31 is made by, for example, attaching urethane foam or glass wool to the outer panel 25 and holding it down with a plate material. A plurality of spacers 33, which are made of wood or the like and have heat insulating properties and also serve as support stands, are provided on the bottom and both side surfaces of the hold 23 at intervals.

Inside the hold 23, an inner tank 35 for cooling liquid made of stainless steel #A or the like is housed independently of the hull.
5 is supported within the hold 23 (frame portion) via the spacer 33 with a distance maintained from the inner circumferential surface of the hold 23, so that there is no space between the outer circumferential surface of the inner tank 35 and the inner circumferential surface of the hold 23. , cooling air circulation passage 3 that goes around the outer circumferential surface of the inner tank
8 is formed.

A partition 39 is provided in the cooling chamber 30 to partition it into a suction section 30a on the right side and a discharge section 30b on the left side, and an air cooler 42 passing through the partition 39 is provided. A suction section 30 is provided on the suction section side of the air cooler 42.
A fan 41 is provided that pumps air through the air cooler 42 from a to the discharge portion 30b. air cooler 4
A refrigerant pipe 43 is disposed inside 2, and the refrigerant pipe 43 is connected to a cooling unit 45 outside the mountain tank, and a refrigerant such as Freon gas, which has been cooled to about -50°C in the cooling unit 45, is transferred to the air cooler 42. It is designed to cool the cooling air.

In FIG. 2, the cargo area of the ship is divided into a plurality of holds 23 by bulkheads 21 spaced apart in the longitudinal direction, and the bulkheads 21 are also of course provided with deflection members 31. Further, the spacers 33 are arranged at sufficient intervals in the front-rear direction so that cooling air can sufficiently pass between them.

In addition, in FIG. 2, a spacer 47 is placed between the front and rear ends of the inner tank 35 and the partition wall 21 to form a small space at the front and rear of the inner tank 35. The space between the front and rear end surfaces of 35 and the partition wall 21 may be narrowed.

Explain the operation. When transporting cooling liquid such as juice in the inner tank 35, the fan 41 shown in FIG.
The air is sucked in from the suction part 30a to the air cooler 42.
The air cooled inside (e.g. -30°C) is discharged from the discharge part 30
b is sent to the upper left side of the cooling air circulation air passage 38, circulates within the cooling air circulation air passage 38 as shown by the arrow, and is fed to the inner tank 3.
The body is uniformly cooled from the outer circumferential side and then returned to the cooling chamber 30 where it is cooled by the refrigerant.

Infiltrated heat from seawater or direct sunlight from above is effectively blocked first by the heat insulating material 31, and then by the cooling air flowing in the cooling air circulation path 38.

Note that the structure including the inner tanks 35 on both sides as shown in FIG. 1 is suitable for an inner tank for cooling liquid having a small inner tank volume ff1 (loading capacity of a ship).

[Embodiment of the invention set forth in claim 2] Fig. 3 shows an adult transport vessel in which the cooling method according to the invention set forth in claim 2 is applied, and is suitable for cases where the capacity is too large to be combined into one inner tank. . Note that in FIG. 3, the same parts as in FIG. 1 are numbered 1dl.

The inner tank 35 is divided into two parts on the left and right, and the inner tank 3
5 are supported on the inner surface (frame portion) of the hold 23 via heat-insulating spacers 33, respectively. Side tank 3
A central spacer 49 is provided between the
is intervening. A cooling air circulation passage 38 is formed on the outer periphery of each inner tank 35 by the spacers 33 and the central spacer 49, and the central air passage portion 38a between the side inner tanks 35 serves as a shared air passage.

The upper cooling chamber 30 is divided by two partitions 39 on the left and right into a central suction section 30a and discharge sections 3ob on both left and right sides, and the central suction section 30a is divided into a common central air path section 3.
8a, and each discharge part 30b communicates with the upper part of the cooling air circulation passage 38 of the corresponding inner tank 35.

Each partition 39 is provided with an air cooler 42,
The fan 41 of each air cooler 42 is located on the side of the central suction section 30a, and is configured to forcefully feed air from the central suction section 30a to each discharge section 30b.

The inner circumferential surface of the hold 23 and the inner circumferential surface of the cooling chamber 30 are provided with the first
Similar to the embodiment, a heat insulating material 31 is applied over the entire surface.

Explain the operation. Common central suction section 3 of cooling chamber 30
Air is sucked into the air cooler 42 by each fan 41 from 0a, and is cooled and distributed to each cooling air circulation path 3.
It is discharged to the top of 8. The left and right cooling air respectively descends through the cooling air circulation passages 38 on both starboard sides, then flows toward the center through the cooling air circulation passages 38 on the lower surface of the inner tank 35, and then flows through the cooling air circulation passages 38 on the lower surface of the inner tank 35 to the central air passage. They rise together in the section 38a and return to the suction section 30a of the cooling chamber 30.

[Embodiment of the invention set forth in claim 3] Figures 4 to 6 show a carrier ship to which the invention set forth in claim 3 is applied, and in Figure 5 showing a perspective view of the inner tank alone,
A large number of short bones 50 extending in the front-rear direction are formed on the outer peripheral surface of the inner tank 35 in parallel to each other.
Ossicles 50 are also formed at the front and rear ends. Furthermore, a plurality of tall frame-shaped bones 51 are formed on the outer peripheral surface of the inner tank '35 at intervals in the front-rear direction.

The positions and distances d2 of the large bones 51 in the anteroposterior direction are set as shown in FIG. 6. In other words, in Figure 6, the hold 23
Generally, a large number of frames (ribs) 55 are formed inside the outer panel 25 constituting the wall of the vehicle, and the frames 55 are usually spaced at a constant distance d1. On the other hand, when installing the inner tank, each large bone 51 is attached to one of the frames 55.
The position and interval d2 of the large bones 51 are set so that they are located at positions corresponding to . Each human bone 51 is supported by a frame 55 via a smoother (support stand) 33.

The structure of the wall itself of the inner tank 35 is made of so-called clad steel, the inner peripheral layer 35a is made of smooth stainless steel with no unevenness, and the outer peripheral layer 35b is made of a steel plate.
Small bones 50 and large bones 51 also made of steel plate material are welded to this copper phase outer peripheral layer 35b. Note that the structure of the wall itself of the inner tank 35 is not necessarily made of rad steel as described above, but may be entirely made of stainless steel.

The heat insulating material 31 is provided inside the outer panel 25 so as to cover the frame 55, and is similar to the first embodiment.
A urethane foam 31b (or glass wool) or the like is provided inside the plate 31a to hold it down.

In FIG. 4, the cooling air circulation path 38 is constituted by a space secured by the spacer 33 and a space between the human bones 51.

The rest of the structure is the same as that shown in Figure 1, including a partition 39 on the top of the cooling air circulation wind, an air cooler 42, etc., and the same parts as in Figure 1 are given the same numbers. .

Due to the action of the air cooler 42 and the fan 41, the cooling air is pasted as shown by the arrow in the same way as in FIG. Cooling air flows through it. Moreover, outwardly protruding ossicles 5
0 and Otsuki 51 also serve as cooling fins, improving the layer cooling effect.

In addition, small bones 50 and large bones 51 for reinforcing the inner tank are formed on the outer circumferential surface, making the inside of the inner tank a smooth surface with irregularities, making it easy to clean the inside of the inner tank 35.

Further, as shown in FIG. 6, the inner tank inner circumferential layer 35a is made of stainless steel that is difficult to dampen, the outer circumferential layer 35b is made of an inexpensive steel plate material, and the outer circumferential portion of the steel plate material has small ribs 50 made of a steel plate material. Inner tank 3 that makes it easy for the main bone 51 to melt, is inexpensive, and is resistant to rust.
You can donate 5.

In addition, in the inner tank 35 as shown in FIG.
A frame-shaped large rib 51 may also be provided at both ends of the inner tank 35 in the front and rear directions, so that cooling air is not particularly sent to the front and rear end surfaces of the inner tank 35.

[Another Embodiment] FIG. 7 shows another embodiment of the invention set forth in claim 2, in which an upper end portion of the central air passage portion 38a between the side tanks 35,
A partition 39 is formed to separate the central air passage portion 38a from the cooling chamber 30, and the partition 39 is provided with a cooler 42' having a fan 41' that is shared with the side tank. Cooling air is then forced to be fed from the central air passage portion 38a to the cooling chamber 30 above through the air cooler 42'.

[Effects of the Invention] As explained above, according to the inventions of main claims 1.2 and 3, the inner tank 35 independent of the hull is housed in the hold 23 surrounded by the heat insulating material 31, and Since the cooling air circulation path 38 that goes around the outer peripheral surface of the tank 35 is formed by the spacer 33 and the like, and the cooling air is circulated by the air cooler 42, there are the following advantages.

(1) The entire inner tank can be cooled uniformly and efficiently from the outer circumferential surface, and temperature increases due to seawater or the tip can be effectively blocked.

Therefore, unlike the conventional integrated inner tank shown in FIG. 8, there is no risk that the cooling liquid will be partially frozen due to local cooling, that cooling will be uneven, or that temperature control will become difficult.

(2) The air cooler 42 and its fan 41 are connected to the inner tank 3
5, maintenance management is easier than the conventional structure shown in FIG. 8, in which the air cooler is immersed in the cooling liquid and the cooling liquid itself is stirred and cooled.

Further, as in the invention as claimed in claim 2, if the outlet tank 35 is divided into left and right parts and each is provided with a cooling air circulation passage 38 and an air cooler 42, the cooling surface area increases and the cooling effect is further improved. . This is especially advantageous when the capacity of one inner tank is too large for a large carrier ship.

As in the invention according to claim 3, the structure of the inner tank 35 is
The inner circumferential surface is a smooth surface with no unevenness, and the outer circumferential surface of the inner tank is
In addition to forming short reinforcing small bones 50 extending in the front-back direction, tall frame-shaped large bones 51 are provided at multiple locations with spacing in the front-rear direction so as to surround the inner tank 35. When cooling air is circulated along the large bone 51 using the guide 51, the following effects can be obtained.

The cooling air is guided by the large bones 51 and flows smoothly around the outer circumference of the inner tank.
1 also serves as a cooling fin, further improving cooling efficiency.

In addition, small bones 50 and large bones 51 for reinforcing the inner tank are formed on the outer circumferential surface, and the inside of the inner tank 35 has a smooth surface inside the irregularities, so that the inside of the inner tank 35 can be easily cleaned.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view of a refrigerated carrier to which the invention according to claim 1 is applied (1-1 mountain range map in Figure 2), and Figure '2 is a cross-sectional view of the cargo area of the same carrier as the first section. FIG. 3 is a cross-sectional view of a cooling carrier to which the invention claimed in claim 2 of the present application is applied; FIG. 4 is a sectional view of a cooling carrier to which the invention of claim 3 of the present application is applied; FIG. 5 is a perspective view of the inner tank 111 shown in FIG. 4, FIG. 6 is a partially enlarged cross-sectional view taken along VI-Vl in FIG.
The figure is a sectional view showing another example of a cooling carrier to which the invention according to claim 2 of the present application is applied, and FIG. 8 is a sectional view of a conventional cooling acid carrier. 23... Ship hold, 31... Insulating material, 33... Spacer, 35... Inner tank, 38... Cooling air circulation air passage, 41... Fan, 42... Air cooler

Claims (3)

[Claims] (1) Insulating material is provided on the inner circumferential surface of the hold, and an inner tank for cooling liquid with an independent tank structure is housed, and an insulating spacer is installed to maintain a distance between the inner circumferential surface of the hold and the above-mentioned inner tank. A cooling air circulation path is formed between the outer circumferential surface of the inner tank and the inner circumferential surface of the hold by supporting the inner tank through the inner tank, and an air cooler having a fan is provided in the upper part of the cooling air circulation air path. A cooling liquid carrier characterized by circulating cooling air in a cooling air circulation air passage using an air cooler. (2) Insulating material is provided on the inner circumferential surface of the hold, and an inner tank for cooling liquid with an independent tank structure divided into two on the left and right is housed in the hold, and there is a gap between the inner circumferential surface of the hold and the above-mentioned inner tank. By supporting each of the above-mentioned inner tanks through insulating spacers so as to maintain a Forms a cooling air circulation path,
An air cooler with a fan is placed above the inner tank,
A cooling liquid carrier characterized by circulating cooling air in each cooling air circulation air passage by an air cooler. (3) In the cooling liquid carrier according to claim 1 or 2,
As for the inner tank structure, the inner circumferential surface of the inner tank is a smooth surface with no unevenness, and the outer circumferential surface of the inner tank is formed with short reinforcing bones that extend in the front-rear direction, as well as a plurality of ribs spaced apart in the front-rear direction. A cooling liquid carrier characterized by having a tall frame-shaped large bone surrounding an inner tank, and circulating cooling air along the large bone in a cooling air circulation air passage using the large bone as a guide. .