JPH0632983U - Refrigeration unit for containers - Google Patents

Abstract

(57) [Abstract] [Purpose] When the wiring 49 and the pipe 48 are laid by sealingly penetrating the inner and outer partition walls 41, the penetrating portion is reliably sealed, and the labor and cost required for sealing are reduced. [Structure] A connector grip 60 is attached to the through hole 50, and a wire 49 or a pipe 48 is secured through the connector grip 60.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a refrigeration unit for containers.

[0002]

[Prior art]

 A schematic configuration of a conventional container refrigeration unit is shown in FIG. 4, where (A) is a front view, (B) is a vertical sectional view taken along the line BB of (A), and (C) is (B). It is a cross-sectional view taken along the line CC of FIG. A refrigeration unit 100 is assembled to one end wall 2 of the container 1, and cargo is stored in the container 1 through a door (not shown) provided on the other end wall. By operating the refrigeration unit 100, the container 1 can be mounted on ships, trucks, railway vehicles, etc. while maintaining the internal air temperature inside the container 1 at a temperature that is set arbitrarily within the range of -25 ℃ to +25 ℃. And carry it.

When the refrigeration unit 100 is in operation, the gas refrigerant discharged from the compressor 3 enters the water cooling condenser 5 or the air cooling condenser 4 and is condensed and liquefied there. This liquid refrigerant enters the expansion valve 9 via the dryer 7 and strainer 8 and is throttled there to adiabatically expand into a gas-liquid two-phase refrigerant. This refrigerant enters the evaporator 10, where it evaporates by cooling the air in the refrigerator, and then returns to the compressor 3 via the accumulator 13.

The air inside the container 1 enters the evaporator section 15 from the suction port 14 as shown by the solid line arrow, is urged by the evaporator fan 12 driven by the motor 11, and flows through the evaporator 10. After being cooled in the process, it returns to the inside of the container 1 via the air passage 16 and the blowing chamber 18, and is blown into the inside of the container through the gaps of the T-shaped ventilation rails 43 laid on the bottom surface thereof.

When the air-cooled condenser 4 is used, the motor 17 drives the condenser fan 6. Then, the outside air is sucked into the condenser section 42 as shown by the broken line arrow and is heated by exchanging heat with the gas refrigerant in the process of passing through the air-cooled condenser 4, and then is energized by the condenser fan 6. Released into the atmosphere.

When using the water-cooled condenser 5, a water supply pipe and a drain pipe (not shown) are connected to the inlet fitting 19 and the outlet fitting 20, and the water control valve 21 is opened. Then, the condenser fan 6 is stopped. Then, the cooling water supplied from the water supply pipe enters the water cooling condenser 5 from the inlet fitting 19 through a water pipe (not shown), and is heated there by exchanging heat with the gas refrigerant, and then the water pipe and the water control valve 21. Is discharged from the outlet fitting 20 through the drainage pipe.

The drain condensed on the evaporator 10 drops on the drain pan 22 and is discharged from the drain port 24 via the drain hose 23.

Reference numeral 41 denotes an inner / outer partition wall for partitioning the inside and the outside of the container 1, which is fastened to the end wall 2 of the container 1 by a flange 44 formed on the entire circumference thereof. A condenser section 42 is formed on the outside of the partition wall 41 in the center of the lower portion thereof.On the inside of the partition wall 41, an evaporator section 15 is provided above the condenser section 42, and an air passage 16 is provided on both sides. Blowing chambers 18 are formed respectively. An evaporator 10, an evaporator fan 12 and the like are installed in the evaporator section 15. Inside the condenser section 42, a compressor 3, an air-cooled condenser 4, a condenser fan 6 and the like are installed.

In addition, 25 is a control box, 26 is a solenoid valve for liquid injection for cooling by injecting a liquid refrigerant into the compressor 3, 27 is a 200V class power plug, 28 is a 400V class power plug, and 29 is a A power transformer, 31 is an intake air temperature sensor for detecting the temperature of the air in the refrigerator that is sucked into the evaporator 10, 30 is an insertion port of a thermometer for checking the temperature sensor 31, and 33 is the air blown out from the evaporator 10. An outlet air temperature sensor for detecting the temperature, 32 is an inlet for a thermometer for checking the temperature sensor 33, 34 is an outlet temperature sensor for detecting the refrigerant outlet temperature of the evaporator 10, 35 is an overheat prevention sensor, 36 Is a discharge pipe temperature sensor for detecting the temperature of the discharge pipe of the compressor 3, 37 is an outside air temperature sensor for detecting the temperature of the outside air flowing into the air-cooling condenser 4, and 38 Is an inspection lid for inspecting the equipment in the evaporator section 15, 39 is a handle used for attaching and detaching the inspection lid 38, and 40 is a ventilation device.

Refrigerant piping 48 for circulating the refrigerant to the evaporator 10 and electric wiring for supplying power to the fan motor 11 and control wiring for sending signals from the sensors 31, 33, 34 are connected to the internal / external partition wall 41. It is laid and pierced tightly. As shown in FIG. 2, these pipes 48 and wirings 49 were passed through the through holes 50 formed in the inner and outer partition walls 41, and then the through holes 50 were filled with a sealer or putty 51 to seal them. In addition, 45 is an outer plate, 46 is an inner plate, and 47 is a heat insulating material, and these constitute the inner and outer partition walls 41.

[0011]

[Problems to be solved by the device]

 After passing the pipe 48 and the wiring 49 through the through hole 50, it is extremely difficult to fill the sealer or putty 51 into the through hole 50 without any clearance, and there is a problem that it is troublesome and costly.

[0012]

[Means for Solving the Problems]

 The present invention has been proposed to solve the above-mentioned problems, and its gist is to lay wires or pipes through through holes provided in the inner and outer partition walls that separate the inside and the outside of the container. In the refrigerating unit for a container as described above, a connector grip is attached to the through hole, and wiring or piping is fixed through the connector grip.

[0013]

[Action]

 Since the present invention has the above configuration, the wiring or the pipe is passed through the connector grip, and then the connector grip is fastened to fix the wiring or the pipe, and the through hole is sealed.

[0014]

【Example】

 One embodiment of the present invention is shown in FIG. A connector grip 60 is mounted on the outer surface of the inner / outer partition wall 41 so as to be coaxial with the through hole 50 by fastening a bolt or screw 64. The connector grip 60 includes a main body 61, a cap 62, and a sealing material 63 made of an elastic material such as rubber and having a wedge-shaped cross section.

Then, when the cap 62 is screwed into the main body 61 after the pipe 48 is passed through the connector grip 60 and the through hole 50, the sealing material 63 is pushed by the inner slope of the cap 62 and the taper of the main body 61 is reduced. When the pipe 48 is pressed into the pipe 48, the diameter of the pipe 48 is reduced to grip the pipe 48 and, at the same time, the through hole 50 is sealed.

The connector grip 60 is not limited to the one shown in the drawing, and any shape and structure can be used according to the diameter of the wiring or piping. For example, as shown in FIG. 2, a sealing material having a cylindrical cross section is used. It may have 65.

[0017]

[Effect of device]

 In the present invention, the wiring or pipe is passed through the connector grip, and then the connector grip is fastened to fix the wiring or pipe and simultaneously seal the through hole. As a result, the wiring or the pipe can be firmly fixed, the through hole can be reliably sealed, and the number of steps and cost for sealing the through hole can be reduced.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a pipe penetration portion showing an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view corresponding to FIG. 1 showing another embodiment of the present invention.

FIG. 3 is a vertical cross-sectional view showing a conventional pipe penetration portion.

FIG. 4 shows a schematic configuration of a conventional container refrigeration unit, (A) is a front view, (B) is a vertical sectional view taken along the line BB of (A), and (C) is (B). It is a cross-sectional view taken along the line CC in FIG.

[Explanation of symbols]

 45 Internal / external partition wall 50 Through hole 48 Piping 60 Connector grip

Claims (1)

[Scope of utility model registration request] 1. A refrigerating unit for a container, wherein wiring or piping is laid through a through hole provided in an inner / outer partition wall for partitioning the inside and the outside of the container, and a connector grip is attached to the through hole, and this connector is provided. A refrigeration unit for containers, characterized in that wiring or piping is secured through a grip.