JPH065578Y2 - Engine driven refrigeration container - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to an engine-driven refrigeration container capable of refrigerating a container for rail transportation.

(B) Conventional technology Since the technology of a container for railway transportation that is driven by an engine has been publicly known, for example, the actual development of Sho 60
No. 116180, No. 62-124474, No. 60-29579, and No. 62-62.
It is like the technique described in Japanese Patent No. 181871.

(C) Problems to be solved by the present invention The present invention attaches an engine to each refrigerating container so that it can be frozen and transported even in a railway container without an appropriate power source. Is also configured to drive a refrigeration compressor by the engine.

In such a configuration, since the engine is arranged in the cooling drive unit, the container may be easily dried, the internal humidity may decrease, and the freshness of vegetables and marine products may decrease. In this case, it is necessary to provide a humidifying device to send moisture into the inside.

Although an engine-driven refrigerating container equipped with a humidifying pump has been conventionally known, in the present invention, a humidifying nozzle is opened in a side cooling passage portion in order to evenly disperse the humidified air into the cooling air. It is a thing.

Also, in the evaporator part and the humidifying nozzle part, the humidified air is exposed and drain water is likely to be generated.However, if the drain water pipe is opened outside the container, the cooling air will normally flow from the drain pipe. Will be ejected. Is it better to install a drain trap to prevent the discharge of cooling air from this drain pipe? If the water that has accumulated in the drain trap freezes, the drain that comes out next loses its place. There was a problem.

The present invention prevents the drain trap from freezing by disposing the drain trap near the engine compartment.

(D) Means for Solving the Problems The object of the present invention is as described above, and the configuration for achieving the object will be described below.

An evaporator fan 2 is provided above the cooling drive unit U fitted into one of the front and rear surfaces of the container, and an evaporator K is provided below the evaporator fan 2.
Immediately below the evaporator fan 2, an upwardly convex mountain-shaped air guide plate 23 is arranged, and the evaporator fan 2 is provided.
The cooling air discharged from the evaporator passes through the evaporator K and is blown out toward the slope of the mountain-shaped conduction air guide plate 23, and further to the side of the cooling drive unit U, the side continuous with the mountain-shaped air guide plate 23. A partial cooling air passage d is provided, and the side cooling air passage d is provided.
In the configuration in which the bottom cooling air passage m communicating with the bottom cooling air passage m is provided at the bottom of the container, the humidifying nozzle 34 for ejecting steam that merges with the cooling air is provided in the middle of the side cooling air passage d upstream of the bottom cooling air passage m. Is opened.

Further, a drain gutter 24 is provided below the slope of the mountain-shaped wind guide plate 23, and a drain pipe 29 for guiding the drain flowing out from the drain gutter 24 downward is provided. The drain trap 3 is provided at a portion passing near the engine room a where the engine is arranged.
5 is provided.

(E) Embodiment The purpose and construction of the present invention are as described above. Next, the construction of the embodiment shown in the accompanying drawings will be described.

FIG. 1 is a front view of a cooling drive unit arranged on the end side of an engine-driven refrigeration container, FIG. 2 is a perspective view of the cooling drive unit in the container, and FIG. 3 is a state in which a cover of the cooling drive unit is opened. FIG.

The overall structure will be described with reference to FIGS. 1, 2, and 3.

The container has a rectangular parallelepiped shape, and the cooling drive unit U is fitted into one of the front and rear surfaces of the container, which is the end side of the container.

In the lower part of the cooling drive unit U, the engine room a
Muffler chamber b compressor chamber f cooling fan chamber g
A tank chamber h and a control box chamber 1 are configured. Each of these chambers is open to the outside of the cooling drive unit U and can be attached and detached from the rear side of the container.

Reference numeral 17 is an opening / closing door of the cooling fan chamber g, 18 is an opening / closing door of the engine E, 16 is an opening / closing door of the muffler chamber b, and 19 is an opening / closing door of the compressor chamber f.

On the other hand, the evaporator fans 2 and 2 and the evaporator K are arranged in the upper part of the cooling drive unit U, and the upper part of the cooling drive unit U in which these are arranged is opened toward the inside of the container. .

The wind discharged from the evaporator fan 2 and cooled while passing through the evaporator K is diverted to the right and left by a mountain-shaped air guide plate 23 arranged below the evaporator K, and the side of the cooling drive unit U is changed. To
Air is blown into the container through a side cooling air passage d formed by the cooling drive unit U and the container side plate and a bottom cooling air passage m formed by the cooling drive unit and the container bottom plate.

Inside the container chamber, a concave-convex floor 14 is formed at the bottom, and when frozen cargo is placed on the concave-convex floor 14, a duct is formed in the concave portion of the concave-convex floor 14 so that cooling air can flow to the end of the container. It is possible to blow up to.

The cooling fan chamber g has the cooling fan motor 1 on the front side, and the cooling air of the engine chamber a sucked by the cooling fan motor 1 passes through the engine chamber a and enters the muffler chamber b.

Also, next to the muffler chamber b, a compressor S and a motor M
And a condenser R is arranged. Further, a cooling fan chamber g, a tank chamber h, and a control box chamber 1 are arranged above the engine chamber a, the muffler chamber b, and the compressor chamber f, and the cooling fan motor 1 is provided inside the engine chamber a. ,
A fuel tank T, a humidification tank H, and a humidification pump N are arranged inside the tank chamber h.

A control box P is arranged inside the control box chamber l.

In FIG. 3, the left and right support legs 20, 2 at the bottom of the container
The control switch boss 21 is arranged so as to be hidden in the portion 0, and the emergency stop switch 26 is provided in the control switch box 21.

In the overall structure as described above, the present invention particularly relates to the humidifying nozzle 34 and the drain trap 35.

4 is a side view of the cooling drive unit U removed from the container, FIG. 5 is a plan view of the cooling drive unit U, and FIG. 6 is a humidification nozzle 3 opened in the side cooling air passage d.
4 is a front sectional view of a portion 4 and FIG. 7 is a drain trap 35.
8 is a front sectional view showing the arrangement of the refrigerant pipes 42 and 43, FIG. 9 is a front view of the drain trap 35 taken out, and FIG. 10 is an electric circuit diagram of the humidifier.

As shown in FIG. 3, in the upper part of the cooling drive unit U, the mountain-shaped air guide guide plate 23, the evaporator K, and the evaporator fan 2 are arranged in a portion opened to the inside of the container. The plate 23 serves to guide the cooling air blown from the evaporator fan 2 through the evaporator K to the side cooling air passage d, and when the moisture-containing air in the container touches the evaporator K to be exposed. That is, it plays a role of guiding the exposed drain water to the left and right and collecting it in the drain gutter 24.

A drain gutter 24 is provided on the side of the mountain-shaped wind guide plate 23 inclined to the left and right, and the drain water of the drain gutter 24 is concentrated on the three-way joint 28 by the drain pipes 27.

A drain pipe 29 is connected to the three-way joint 28, and the drain pipe 29 is introduced into the muffler chamber b.

The drain trap 35 is provided at the portion where the drain pipe 29 is introduced into the muffler chamber b.

The drain trap 35 is in the form of a pipe circumvented by the circumference, and drain water is constantly accumulated in the lower half of the circumference.

Because the drain water is always accumulated in this part,
Even though the drain pipe is open at the drain gutter 24, the problem that the cooling air blown from the evaporator fan 2 blows out of the container through the drain pipe 29 does not occur.

However, if the drain trap 35 is formed inside the container, the accumulated drain water freezes and becomes clogged. Even if the drain trap 35 is placed in another portion, the temperature inside the container is low, so that the portion of the drain trap 35 freezes for a long time.

In the present invention, the drain trap 35 is arranged beside the muffler 3 in the muffler chamber b.

The drain water that has passed through the drain trap 35 merges with the drain water at the humidification nozzle 34 at the part of the three-way joint 36, and passes through the drain water pipe 8 arranged in the vicinity of the exhaust pipe 6 of the muffler 3 to remove the container water. It is discharged downward.

Next, the configuration of the humidifying nozzle 34 will be described.

In FIG. 3, the water in the humidifying tank H arranged in the tank chamber h is discharged by the humidifying pump N, turned into steam by the humidifying device shown in FIG. 10, and discharged from the humidifying nozzle 34.

In FIG. 10, the water discharged from the humidification pump N is heated inside the heater 46 by the electric heating device 47 by the water absorption electromagnetic valve 44 and the drainage electromagnetic valve 45. The heating by the electric heating device 47 turns into steam, which is discharged to the humidification nozzle 34 through the steam pipe 33. 50 is a temperature sensor that detects the humidity of each part in the container.

Since the humidification nozzle 34 is also exposed to water, the drain water generated by this exposure is drained by the drain pipe 30.
The overflow water from the heater 46 and the drain water collected in the overflow tray 31 are combined with the overflow tray 31 arranged below the portion of the heater 46, and the drain water is used to connect the overflow water from the heater 46 to the three-way joint 3.
It joins in the part of 6.

The humidifier part is the engine compartment a of the cooling drive unit U.
Since all are arranged on the side and only the humidifying nozzle 34 projects to the side cooling air passage d, there is no fear of freezing and there is no need to pass through the drain trap 35. .

Further, as shown in FIGS. 4 and 8, a refrigerant pipe 39 for sending the refrigerant from the compressor S to the evaporator K.
In this configuration, the refrigerant return pipe 40 fixes the side cooling air passage d on the side surface of the cooling drive unit U to the inside of the heat insulating wall 43 forming one side via the pipe holder 42.

The inside of the heat insulating chamber 43 is filled with a heat insulating material such as Styrofoam, and by disposing the refrigerant pipe 39 and the refrigerant return pipe 40 inside the heat insulating material, heat dissipation from the pipes is prevented. Can be done.

Further, the harnesses 37, 38 for the power source for automatic control also communicate with the chamber of the evaporator fan 2 after passing through the inside of the heat insulating wall 43, as shown in FIGS. 4 and 6.

(F) Effects of the Invention Since the present invention is configured as described above, it has the following effects.

According to the first aspect of the invention, in the side cooling air passage d, the cooling air blown from the evaporator fan 2 can be uniformly mixed with the steam sent from the humidifying nozzle 34.

As a result, it is possible to solve the problem of the prior art that the engine is placed in the cooling drive unit, which makes it easier for the container to dry, lowering the internal humidity and the freshness of vegetables and seafood. It was made.

Since it is configured as in claim 2, the cooling water is prevented from blowing out of the container from the portion of the drain pipe 29 communicating with the portion of the mountain-shaped air guide plate 23 by the drain water accumulated in the portion of the drain trap 35. You can do it.

Further, if the drain trap 35 is frozen by the cooling air of the container, the drain water discharge is stopped at that portion.
Since the temperature of the portion of the drain trap 35 is heated and raised by the heat of the engine by being provided in the vicinity of, the freezing of the accumulated water in the drain trap 35 can be prevented.

[Brief description of drawings]

FIG. 1 is a front view of a cooling drive unit arranged on the rear side of an engine-driven refrigeration container, FIG. 2 is a perspective view of the cooling drive unit inside the container, and FIG. 3 is a state in which a cover of the cooling drive unit is opened. Is a front view of FIG. 4, and FIG. 4 is a side view of the cooling drive unit U removed from the container.
5 is a plan view of the cooling drive unit U, FIG. 6 is a front sectional view of a portion of the humidifying nozzle 34 opened in the side cooling air passage d, and FIG. 7 is a front view of a portion of the drain trap 35. 8 is a sectional view of the refrigerant pipes 42 and 43 taken along line FF in FIG. 4, FIG. 9 is a front view of the drain trap 35, and FIG. 10 is an electric circuit diagram of the humidifier. is there. K ... Evaporator a ... Engine room b ... Muffler room d ... Side cooling air passage n ... Communication hole 1 ... Cooling fan motor 2 ... Evaporator fan 23 ... Mountain air guide plate 24 ... Drain gutter 34 ... Humidification nozzle 35 ... Drain trap

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-60-29579 (JP, A) real-opening Sho-60-116180 (JP, U) real-opening Sho-62-124474 (JP, U) real-opening Sho-62- 181871 (JP, U) Actually opened 63-63671 (JP, U) Actually opened 51-60561 (JP, U) Actually opened 51-156557 (JP, U) Actually public 55-42229 (JP, Y2)

Claims (2)

[Scope of utility model registration request] 1. An evaporator fan 2 is provided above a cooling drive unit U fitted in one of the front and rear surfaces of a container, and an evaporator K is provided under the evaporator fan 2 so as to be directly below the evaporator fan 2. , The upward convex mountain-type air guide plate 23 is arranged, and the cooling air discharged from the evaporator fan 2 passes through the evaporator K and is blown toward the slope of the mountain-air guide plate 23. Further, a side cooling air passage d continuous with the mountain-shaped air guide plate 23 is provided on the side of the cooling drive unit U, and a bottom cooling air passage m communicating with the side cooling air passage d is provided at the container bottom. In the above structure, the humidifying nozzle 34 for ejecting steam that joins the cooling air is opened in the middle of the side cooling air passage d and upstream of the bottom cooling air passage m. Refrigerated container. 2. A drain gutter 24 is provided below the slope of the mountain-type wind guide plate 23 according to claim 1, and a drain pipe 29 is provided to guide a drain flowing out from the drain gutter 24 downward. An engine driven refrigerating container, characterized in that a drain trap 35 is provided in a portion passing through the vicinity of an engine room a in which a driving engine is arranged, in the middle of 29.