JP2012112620A - Container refrigeration device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigeration device which enables an engine-driven refrigeration machine for a container to be easily installed in a container and which enables improvement in manufacturing efficiency by eliminating complex work in the manufacturing process.SOLUTION: This refrigeration device includes a rectangular parallelepiped container 2, and the engine-driven refrigeration machine 3 for the container, mounted on one face of the container 2, and the engine-driven refrigeration machine 3 for the container has an evaporator 21 for evaporating a refrigerant in the container 2 to perform heat exchange for cooling, a refrigeration machine body 22 for liquefying the refrigerant by heat exchange, and a connection pipe 23 for connecting the evaporator 21 and the refrigeration machine body 22 to allow the refrigerant to pass therein. A mounting hole 33 of the engine-driven refrigeration machine for the container is formed at a front gable side of the container 2, and a flange section 42a to be fixed around the mounting hole 33 for the engine-driven refrigeration machine for the container, is formed at the circumference of a front face of the refrigeration machine body 22. The evaporator 21 can be disposed above or below the refrigeration machine body 22, and the connection pipe 23 is configured from a bendable pipe.

Description

  The present invention relates to a technology of a container refrigeration apparatus including a rectangular parallelepiped container and a container engine-driven refrigerator provided on one surface of the container.

  Conventionally, a container refrigeration apparatus including a rectangular parallelepiped container and a container engine-driven refrigerator provided on one surface of the container has been publicly known (see, for example, Patent Document 1). The engine-driven refrigerator for containers is detachably mounted on the container, and maintains the temperature inside the container at a predetermined temperature. The container-driven engine-driven refrigerator includes an evaporator and a refrigerator body having an engine, a generator, and the like. The engine-driven refrigerator for a container is provided in a frame separate from the container, and the container refrigeration apparatus is configured by attaching the frame to one surface of the container.

Japanese Patent Laid-Open No. 2004-3706

However, when the frame is attached to one surface of the container, the overall length of the container becomes long, and the overall volume of the container has increased. Further, even if the container engine-driven refrigerator is installed inside the container, the container engine-driven refrigerator is too large to fit in the container.
In addition, the container and the engine-driven refrigerator for the container are generally manufactured in separate factories. When the container and the engine-driven refrigerator are assembled in the same factory, the container engine-driven refrigerator is installed in the container. As a result, it becomes difficult to maintain the factory quality of the engine-driven refrigerator for the container, and complicated work is required when assembled in the container, which reduces production efficiency. It was.

  In view of the above problems, the present invention provides a refrigeration apparatus in which a container engine-driven refrigerator can be easily installed in a container, and the production efficiency can be improved by omitting complicated operations in the manufacturing process. To do.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

  That is, according to a first aspect of the present invention, a container having a rectangular parallelepiped shape and a container engine-driven refrigerating machine provided on one surface of the container are provided, and the container engine-driven refrigerating machine vaporizes the refrigerant in the container. An evaporator that performs heat exchange and cooling, a refrigerator main body that liquefies refrigerant by heat exchange, and a connecting pipe that connects the evaporator and the refrigerator main body and passes the refrigerant, and the front wife of the container A container engine-driven refrigerator mounting hole is provided on the side, a flange portion is formed around the front surface of the refrigerator main body to be fixed around the container engine-driven refrigerator mounting hole, and the evaporator The connecting pipe can be arranged above or below the refrigerator body, and the connecting pipe is formed of a bendable pipe.

  In Claim 2, the fixing used for the connection by the coupling tool in the state which attached to the container and the state which arrange | positioned two engine drive chillers for containers to the inner side faces the upper part and the lower part of the right and left sides of the flange part. A hole is formed.

  As effects of the present invention, the following effects can be obtained.

  In claim 1, since the evaporator is provided as a separate member from the refrigerator main body and the connecting pipe can be bent, the refrigerator main body is accommodated from the engine engine driven refrigerator attachment hole, and the evaporator is installed in the refrigerator in the container. It can be easily installed on the upper or lower side of the main body. In addition, since the finished product can be assembled in a separate factory from the container engine-driven refrigerator and the container, the production efficiency is improved.

  In the second aspect, the flange portion can be fixed to the container and connected by the connecting tool of the two engine-driven refrigerators for the container, so that the assembly to the container can be facilitated and the production efficiency can be improved. Furthermore, packing and shipping when shipping an engine-driven refrigerator for a container can be facilitated.

The perspective view which showed the whole structure of the freezing apparatus which concerns on one Embodiment of this invention. The perspective view of a container. (A) Perspective view of a container engine-driven refrigerator (b) A perspective view of a container engine-driven refrigerator with a cover attached. (A) Partial rear sectional view of the refrigeration apparatus (b) Partial sectional view of the left side. (A) Partial rear sectional view of the refrigeration apparatus (b) Partial sectional view of the left side. The figure which shows the procedure which puts the engine drive type refrigerator for containers in a container (a) The side view of the engine drive type refrigerator for containers before putting in a container (b) The engine drive type refrigerator for containers in the middle of putting in a container, and a container Side surface sectional drawing of (c) Side surface partial sectional view of the engine drive type refrigerator for containers in the state put into the container. The figure which shows the procedure which puts the engine drive type refrigerator for containers in a container (a) The side view of the engine drive type refrigerator for containers before putting in a container (b) The engine drive type refrigerator for containers in the middle of putting in a container, and a container Side surface sectional drawing of (c) Side surface partial sectional view of the engine drive type refrigerator for containers in the state put into the container. The (a) front view (b) side view which shows the transport state of the engine drive type refrigerator for containers.

  First, a refrigeration apparatus according to an embodiment will be described with reference to FIGS. 1, 2, 4, and 5.

The container refrigeration apparatus 100 includes a rectangular parallelepiped container 2 and a container engine-driven refrigerator 3 provided on the front wife side of the container 2.
The container 2 is formed in a rectangular parallelepiped box shape. The container 2 includes a floor panel 11, two side panels 12 and 12 that cover the left side surface and the right side surface, a ceiling panel 13, a rear wife frame 14, a wife door 15 and 15, and a front wife frame 16.

  The floor panel 11 is a plate-like member, and the floor panel 11 is provided with a heat insulating material. The heat insulating material is disposed on one or both of the inside and the surface of the floor panel 11. Further, as shown in FIG. 4, an underfloor rail 32 is provided on the upper surface of the floor panel 11. The underfloor rail 32 is formed by arranging a plurality of T-shaped rails on the entire surface of the floor panel 11 at predetermined intervals in a cross-sectional view. Moreover, as another form of the underfloor rail 32, it can also be formed in an uneven shape in which a plurality of trapezoidal protrusions are arranged in a sectional view. By configuring in this way, the underfloor rail 32 can provide a passage through which cooling air can pass between the placement surface on which cargo or the like is placed and the top surface of the floor panel 11.

  Further, a drain pan 31 (see FIG. 5) is provided at a front portion of the floor panel 11 and below a position where a container engine-driven refrigerator 3 described later is disposed. The drain pan 31 is a part that receives water droplets dripped from the evaporator 21 when the evaporator 21 is provided below the main body frame 42. Water droplets stored in the drain pan 31 are discharged to the outside.

The side panels 12 and 12 are plate-shaped members, and the side panels 12 and 12 are provided with a heat insulating material. The heat insulating material is disposed on one or both of the inside and the surface of the side panels 12 and 12.
The ceiling panel 13 is a plate-like member, and a heat insulating material is disposed on the ceiling panel 13. The heat insulating material is disposed on one or both of the inside and the surface of the ceiling panel 13.
The floor panel 11, the two side panels 12 and 12, and the ceiling panel 13 are fixed to each other by welding or the like, and form a rectangular tube whose front and rear surfaces are open.

  A rear wife frame 14 is attached to the rear surface of the container 2. The rear wife frame 14 is formed in a square shape in a front view. The length of the upper side of the rear frame 14 is the same as the horizontal width of the ceiling panel 13, the length of the side is the same as the vertical length of the side panels 12 and 12, and the length of the lower side is the floor panel 1. Is the same as the horizontal width of That is, the front surface of the rear wife frame 14 is formed in the same shape as the rear surface of a rectangular tube formed by the floor panel 11, the two side panels 12, 12 and the ceiling panel 13.

  The rear wife frame 14 is connected to the floor panel 11, the two side panels 12 and 12, and the ceiling panel 13. Further, the corner brackets 17, 17, 17, and 17 are attached to the four corners of the rear end frame 14 and the four corners of the rear surface of the rectangular tube by welding or the like. The corner brackets 17, 17, 17, 17 are connected to a connecting member of the cargo handling device during handling. Thereby, the container 2 can be lifted by the cargo handling apparatus.

  Wife doors 15 and 15 are provided on the sides of the rear wife frame 14, respectively. The end doors 15 and 15 are fixed so as to be rotatable about each side, and the container 2 can be opened and closed by rotating the end doors 15 and 15. A heat insulating material is also disposed on the inner surfaces of the doors 15 and 15.

  A front wife frame 16 is attached to the front surface of the container 2. The front wife frame 16 is formed in a rectangular (in this embodiment, a square in front view) frame shape. In other words, the front wife frame 16 is formed with an opening (container engine-driven refrigerator mounting hole 33) having a square in front view (square in front view in the present embodiment) in the center of a square plate. The length of the upper side of the front frame 16 is the same as the horizontal width of the ceiling panel 13, the length of the side is the same as the vertical length of the side panels 12, 12, and the length of the lower side is the floor panel 11. Is the same as the horizontal width of

The front wife frame 16 is connected to the floor panel 11, the two side panels 12 and 12, and the ceiling panel 13. The corner brackets 17, 17, 17, and 17 are attached to the four corners of the front end frame 16 and the four corners of the rear surface of the rectangular tube by welding or the like. The corner brackets 17, 17, 17, 17 are connected to a connecting member of the cargo handling device during handling. Thereby, the container 2 can be lifted by the cargo handling apparatus.
A container engine-driven refrigerator mounting hole 33 is provided at the center of the front wife frame 16 when viewed from the front. The container engine-driven refrigerator 3 is attached for fixing the container engine-driven refrigerator 3 with bolts around the hole. Fixed holes 16a, 16a, ... are provided. The mounting fixing holes 16a, 16a,... Are arranged symmetrically vertically and horizontally.

Next, the container engine-driven refrigerator 3 will be described with reference to FIGS. 1, 3, and 4.
The container-driven engine-driven refrigerator 3 is disposed in the container 2 and is cooled by exchanging heat, an evaporator 21, a refrigerator main body 22 that compresses and liquefies the vaporized refrigerant and pumps it to the evaporator 21, And a connecting pipe 23 that connects the evaporator 21 and the refrigerator main body 22 and allows the refrigerant to pass therethrough.

  The evaporator 21 is a device that cools the inside of the container 2 by causing the refrigerant that has been reduced in temperature and pressure to absorb the heat of the air inside the container 2 (heat exchange). The evaporator 21 has a plurality of evaporator fans 41, 41, 41, 41 and an evaporator tube (not shown). The evaporator fan 41 takes in the air in the container 2 and applies it to the evaporator tube to cool the air in the container 2, and then sends the cooled air into the container 2 again.

  The refrigerator main body 22 includes a main body frame 42, a condenser 43, a condenser fan 44, an exhaust silencer 45, a generator 46, an engine 47, a compressor 48, a controller 49, and a fuel tank 50. . The refrigerator main body 22 has a cover on the front surface thereof to protect each component.

  The main body frame 42 is a rectangular parallelepiped box-shaped frame, the front surface is open, and a flange portion 42a is provided around the front surface. The main body frame 42 also serves as a reinforcing member that reinforces the container 2. The main body frame 42 is provided with a heat insulating material on one or both of the surface and the inside thereof, whereby five surfaces other than the front surface are insulated from the surroundings. The size of the main body frame 42 is substantially the same as the size of the engine drive type refrigerator mounting hole 33 for containers. Thereby, the main body frame 42 can be put into the container 2 through the container engine-driven refrigerator mounting hole 33. Further, a flange portion 42a is provided on the front surface of the main body frame 42. The flange portion 42a has fixing holes 42b, 42b,... In accordance with the positions of the fixing holes 16a, 16a,.・ ・ Is provided. In this way, the main body frame 42 is fixed to the container 2 by screwing the bolts into the fixing holes 42b, 42b... And the fixing holes 16a, 16a. Can be set.

  The main body frame 42 is divided into an upper stage, a middle stage, and a lower stage. The upper stage includes a capacitor 43, a condenser fan 44, and an exhaust silencer 45, and the middle stage includes a generator 46, an engine 47, a compressor 48, and The controller 49 stores a fuel tank 50 in the lower stage.

  A drain pan 55 (see FIG. 4) is provided on the upper surface of the main body frame 42. The drain pan 55 is a portion that receives water droplets dripped from the evaporator 21 when the evaporator 21 is provided above the main body frame 42. Water droplets stored in the drain pan 55 are discharged to the outside.

The condenser 43 is connected to the compressor 48 and is a device that cools the high-temperature and high-pressure refrigerant sent from the compressor 48 by exchanging heat with the outside air. The condenser fan 44 is provided adjacent to the condenser 43, and cools the refrigerant in the condenser 43 by applying an outside air wind to the condenser 43 by the condenser fan 44.
The exhaust silencer 45 is provided in the exhaust pipe of the engine 47. By providing the exhaust silencer 45 in the upper stage of the main body frame 42, the influence of engine exhaust heat hardly reaches the middle stage and the lower stage.

The generator 46 has a power generation shaft connected to the drive shaft of the engine 47 by a chain or a belt. Thereby, the generator 46 can be driven by the driving force of the engine 47.
The compressor 48 is a device that sucks the low-temperature and low-pressure refrigerant from the evaporator 21, compresses it into a high-temperature and high-pressure refrigerant, and sends it to the condenser 43. The compressor 48 has a rotation shaft connected to the drive shaft of the engine 47 by a chain or a belt. Thereby, the compressor 48 can be driven by the driving force of the engine 47.
The controller 49 is a device for controlling devices such as the engine 47 and the compressor 48.
The fuel tank 50 is a container that stores engine fuel.

  The connecting pipe 23 is a pipe that connects the evaporator 21 and the refrigerator main body 22 and passes the refrigerant. The connecting pipe 23 includes a feed pipe that sends the refrigerant from the refrigerator main body 22 to the evaporator 21 and a return pipe that returns the refrigerant from the evaporator 21 to the refrigerator main body 22. The connecting tube 23 is made of metal and is formed of a bendable bellows tube. Thereby, the relative position of the evaporator 21 and the refrigerator main body 22 can be changed in the state with which it connected via the connecting pipe 23. FIG.

Next, the flow of air when the evaporator 21 is installed above the refrigerator main body 22 will be described with reference to FIG.
A suction net 61 is provided above the refrigerator main body 22 to prevent the evaporator 21 from sucking in foreign matter. In addition, an upper cover 62 is provided to prevent the air cooled by the evaporator 21 from entering the container 2 from above (short circuit phenomenon).

As shown in FIG. 4, the air blown out from the evaporator 21 passes between the side surface of the refrigerator main body 22, the side frames 12, 12 of the container 2, and the side cover 63, and goes downward of the refrigerator main body 22. Sent. The air sent to the lower side of the refrigerator main body 22 is sent into the container 2 through the gap between the underfloor rails 32.
The air cooled in the container 2 gathers upward by the suction force of the evaporator fan 41 and flows again from the suction net 61 to the refrigerator main body 22 side.

Next, the flow of air when the evaporator 21 is installed below the refrigerator main body 22 will be described with reference to FIG.
A suction net 61 is provided above the refrigerator main body 22 to prevent the evaporator 21 from sucking in foreign matter.
As shown in FIG. 5, the air that has passed through the suction net 61 from above the refrigerator main body 22 passes between the side surface of the refrigerator main body 22, the side frames 12 and 12 of the container 2, and the side cover 63. It is sent below the refrigerator main body 22. A lower cover 64 is provided below the refrigerator main body 22 to prevent the evaporator 21 from directly sucking the air in the container 2. The air cooled by the evaporator 21 is sent into the container 2 through the gap between the underfloor rails 32.
The air cooled in the container 2 gathers upward by the suction force of the evaporator fan 41 and flows again from the suction net 61 to the refrigerator main body 22 side.

Next, a method for attaching the container engine-driven refrigerator 3 to the container 2 will be described.
As shown in FIG. 6, when the refrigerator main body 22 and the evaporator 21 of the container engine-driven refrigerator 3 are placed in the container 2, the evaporator 21 is disposed behind the refrigerator main body 22. Thereby, even if the engine drive type refrigerator attachment hole 33 for containers is the same size as the external shape in the front view of the refrigerator main body 22, the evaporator 21 and the refrigerator main body 22 can be put in the container 2. FIG.

  After the refrigerator main body 22 and the evaporator 21 are placed in the container 2, the evaporator 21 is disposed above the refrigerator main body 22. The evaporator 21 is attached to the upper part of the main body frame 42. When the evaporator 21 is moved upward from the rear of the refrigerator main body 22, the connecting pipe 23 is bent.

  Further, as shown in FIG. 7, after the refrigerator main body 22 and the evaporator 21 are placed in the container 2, the evaporator 21 can be disposed below the refrigerator main body 22. The evaporator 21 is attached to the lower part of the main body frame 42.

Next, the form at the time of transport of the engine drive type refrigerator 3 for containers is demonstrated.
As shown in FIG. 8, at the time of transport, the two engine drive chillers 3 are fixed so that the inside faces each other by using the upper coupling tools 65A and 65A and the lower coupling tools 65B and 65B.
Since the upper connecting tool 65A and the lower connecting tool 65B have the same configuration, the upper connecting tool 65A will be described. The upper connecting tool 65A is formed by forming a belt plate in a square shape in a side view. Fixing holes 65a, 65a,... Are formed in the lower front surface and the lower rear surface of the upper connector 65A in accordance with the intervals and positions of the fixing holes 42b, 42b,. The plurality of fixing holes 65a, 65a,... Are arranged eccentrically downward and inward. Accordingly, when the upper coupling tool 65A is fixed to the flange portion 42a, the upper portion of the upper coupling tool 65A projects upward from the upper end of the flange portion 42a, and the projection length places the evaporator 21 on the upper portion of the refrigerator main body 22. It is comprised so that it may become higher than the upper end height at the time of doing.
Further, when the upper coupling tool 65A is fixed to the flange portion 42a, the length of the outer side portion of the upper coupling tool 65A protrudes from the side end of the flange portion 42a. Furthermore, the front-rear length of the upper connector 65 </ b> A is configured to be slightly longer than twice the front-rear length of the container engine-driven refrigerator 3.

In such a configuration, when the container engine-driven refrigerator 3 is transported, it is packed as follows.
Two container engine-driven refrigerators 3 and 3 are arranged back to back, that is, two container engine-driven refrigerators 3 and 3 are arranged so that the inside faces each other, and the upper couplers 65A and 65A The lower coupling members 65B and 65B are positioned between the flange portions 42a and 42a of the container engine-driven refrigerators 3 and 3, and the fixing holes 42b, 42b,. The fixing holes 65a, 65a,... Of the upper couplers 65A, 65A are aligned and fixed with bolts. Similarly, the fixing hole holes 42b, 42b,... On the lower left and right sides of the flange portions 42a, 42a are aligned with the fixing holes 65a, 65a,.

  In this way, the upper coupling tools 65A and 65A and the lower coupling tools 65B and 65B can fix the container engine-driven refrigerators 3 and 3 at regular intervals. Collisions caused by shaking between the three can be prevented.

  Further, when the evaporator 21 is placed and placed above the refrigerator main body 22 during transportation, the upper ends of the upper coupling tools 65A and 65A are arranged to be higher than the upper surface of the evaporator 21, and therefore the evaporator 21 Can be prevented from contacting the upper obstacle. That is, the left and right upper couplers 65A and 65A can protect the mounted evaporator 21. At this time, a buffer material 67 is disposed between the inner side surfaces of the upper coupling tools 65A and 65A and the evaporator 21. Thereby, the contact between the upper couplers 65A and 65A and the evaporator 21 due to vibration during transportation can be prevented.

  Further, since the lower surfaces of the lower coupling tools 65B and 65B are arranged to project downward from the lower surface of the refrigerator main body 22, a space is created between the lower surface of the refrigerator main body 22 and the ground, and the refrigerator main body It is possible to prevent the 22 from coming into direct contact with the ground and damaging it, and to insert the claw 201 of the transport vehicle 200 such as a forklift into this space.

As described above, the container refrigeration apparatus 100 includes the rectangular parallelepiped container 2 and the container engine-driven refrigerator 3 provided on one surface of the container 2, and the container engine-driven refrigerator 3 is disposed in the container 2. An evaporator 21 that vaporizes and cools the refrigerant and cools it, a refrigerator main body 22 that exchanges heat and liquefies the refrigerant, a connection pipe 23 that connects the evaporator 21 and the refrigerator main body 22 and passes the refrigerant, , And a container engine-driven refrigerator mounting hole 33 is provided on the front end side of the container 2, and around the front surface of the refrigerator main body 22 is fixed around the container engine-driven refrigerator mounting hole 33. The evaporator portion 21 can be disposed above or below the refrigerator main body 22, and the connecting tube 23 is formed of a bendable tube.
With this configuration, the connecting pipe 23 can be bent, so that the refrigerator main body 22 is accommodated from the container engine-driven refrigerator mounting hole 33, and the evaporator 21 is placed above the refrigerator main body 22 in the container 2. Or it can be easily installed on the lower side. Since the evaporator 21 is provided as a separate member from the refrigerator main body 22, the relative positions of the evaporator 21 and the refrigerator main body 22 can be changed, and the container-driven engine-driven refrigerator 3 is a container 2 having a limited size. It can be easily installed inside. Further, since the engine-driven refrigerator 3 for containers can be unitized and a finished product can be assembled in a factory different from the container 2, production efficiency is improved.

In addition, the container refrigeration apparatus 100 has an upper connector in a state where the attachment to the container 2 and the two engine-driven refrigerators 3 for the container are disposed so that the inside faces each other at the upper and lower portions on both the left and right sides of the flange portion 42a. The fixing hole 42b used for connection by 65A and the lower side connection tool 65B is formed.
By configuring in this way, the flange portion 42a enables fixation to the container 2 and connection by the upper connector 65A and the lower connector 65B of the two engine-driven refrigerators 3 for containers. Assembling to the container 2 can be facilitated to improve production efficiency, and packing and shipping when shipping the engine-driven refrigerator 3 for container can be facilitated. In addition, since the containerized engine driven refrigerator 3 can be transported in the product stage, the container engine driven refrigerator 3 can be assembled in a factory different from the container 2, Production efficiency is improved.

2 Container 3 Engine Driven Refrigerator for Container 21 Evaporator 22 Refrigerator Main Body 23 Connecting Pipe 33 Engine Driven Refrigerator Mounting Hole for Container 42 Main Body Frame 42a Flange 42b Fixed Hole 65A Upper Connector 65B Lower Connector

Claims (2)

A rectangular parallelepiped container, and an engine-driven refrigerator for a container provided on one surface of the container,
The container-driven engine-driven refrigerator includes an evaporator that evaporates and cools the refrigerant in the container, heats and cools the refrigerant, a refrigerator main body that exchanges heat and liquefies the refrigerant, and the evaporator and the refrigerator main body. And a connecting pipe for passing the refrigerant,
A container engine-driven refrigerator mounting hole is provided on the front wife side of the container, and a flange portion is formed around the front surface of the refrigerator body for fixing around the container engine-driven refrigerator mounting hole. The evaporator is a container refrigeration apparatus which can be arranged above or below the refrigerator main body and in which the connecting pipe is formed of a bendable pipe. A fixing hole used for connection to a container and connection by a connector in a state in which two container engine-driven refrigerators are arranged so as to face each other on the upper and lower sides on both the left and right sides of the flange portion. The container refrigeration apparatus according to 1.

Images