JPH06249525A - Resonance pipe refrigerating machine - Google Patents

Abstract

PURPOSE:To increase mounting freedom of an object to be cooled by arranging a low temperature side heat exchanger at a terminal of a refrigerating machine section to eliminate possible thermal interference with a prime mover in a refrigerating machine section in which a freezing occurs on the low temperature side as caused by vibration of the prime mover for vibrating a working fluid sealed into a resonance pipe and the working fluid. CONSTITUTION:A high temperature side heat exchanger 15, a high temperature stack 16 and a room temperature side heat exchanger 17 are aranged in the order from one end 12 side of a resonance pipe 11 and heat is absorbed from outside on the high temperature side to be released on the room temperature side. A prime mover section 14 is arranged to vibrate a working fluid sealed into the resonance pipe 11, a room temperature side heat exchanger 21, a low temperature stack 22 and a low temperature side heat exchanger 23 are arranged in the order from the other side end of the resonance pipe 11 and a refrigerating machine section 20 is provided to cause a freezing on the low temperature side by the vibration of the working fluid to form a resonance pipe refrigerating machine 10. The low temperature side heat exchanger 23 is located at the end of the resonance pipe refrigerating machine 10. This eliminates possible thermal interference between the refrigerating machine section and the prime mover section thereby increasing mounting freedom of an object to be cooled.

Description

Detailed Description of the Invention

[0001]

[Object of the Invention]

[0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resonance tube refrigerator.

[0003]

2. Description of the Related Art Conventionally, a resonance tube refrigerator of this type is known, for example, as disclosed in US Pat. No. 4,858,441. In this configuration, the prime mover section and the refrigerator section are arranged on one end side of the resonance tube with respect to a portion where the pressure in the resonance tube does not fluctuate (that is, a pressure fluctuation node of the standing wave). The motor part has a high temperature side heat exchanger, a high temperature stack and a room temperature side heat exchanger which are arranged in order from one end side of the resonance tube. The high temperature side absorbs heat from the outside and releases the heat at room temperature side. Then, the working fluid enclosed in the resonance tube is vibrated.

Further, the refrigerator section has a room temperature side heat exchanger, a low temperature stack, and a low temperature side heat exchanger, which are sequentially arranged from the room temperature side heat exchanger side of the prime mover section. The working medium is vibrated by the prime mover section. Causes freezing on the low temperature side.

[0005]

In the resonance tube refrigerator described above, it is necessary to bring the low temperature side heat exchanger into contact with the object to be cooled in order to absorb heat from the object to be cooled. Since the container is arranged closer to the motor part than the part of the resonance tube where pressure fluctuation does not occur and is located in the approximate center of the refrigerator, it is difficult to attach the cooled object. Further, since the prime mover portion and the refrigerator portion are substantially in contact with each other, the refrigerator portion may thermally interfere with the prime mover portion.

[0006] Therefore, the present invention has an object to increase the degree of freedom in mounting a body to be cooled.

[0007]

[Constitution of the invention]

[0008]

The technical means (first technical means) taken in the invention of claim 1 in order to solve the above technical problems is a high temperature arranged in order from one end side of the resonance tube. A motor part that has a side heat exchanger, a high temperature stack, and a room temperature side heat exchanger, and that absorbs heat from the outside on the high temperature side and releases the heat on the room temperature side to vibrate the working fluid enclosed in the resonance tube. , A room temperature side heat exchanger, a low temperature stack and a low temperature side heat exchanger, which are sequentially arranged from the other end side of the resonance tube, and a refrigerator section for generating refrigeration on the low temperature side by vibration of the working fluid. In the resonance tube refrigerator, the resonance tube is bent so that the low temperature side heat exchanger is located at the end of the resonance tube refrigerator.

In order to solve the above technical problems, a second aspect is provided.
Means taken in the invention of (2nd technical means)
Is the inner tube portion of the resonance tube that is located on one end side of the resonance tube with respect to the erecting portion, and the outer tube portion that is located on the other end side of the resonance tube with respect to the erecting portion and that is arranged around the inner tube portion. That is, the room temperature side heat exchanger and the low temperature stack are arranged in the outer tube portion.

[0010]

According to the first technical means, since the low temperature side heat exchanger is located at the end of the resonance tube refrigerator, the degree of freedom in mounting the cooled object is increased. Further, since the prime mover section is arranged on one end side of the resonance tube and the refrigerator section is arranged on the other end side, a sufficiently long distance between the prime mover section and the refrigerator section is ensured, and the refrigerator section and the prime mover section are thermally coupled. Interference is prevented.

According to the second technical means, since the resonance tube has the double tube structure, the entire refrigerator can be made compact.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a sectional view of a resonance tube refrigerator according to this embodiment.

The resonance tube refrigerator 10 shown in FIG. 1 is provided with a cylindrical resonance tube 11, and both ends 1 of this resonance tube 11 are provided.
2 and 13 are closed ends. A working fluid such as helium is enclosed in the resonance tube 11. A prime mover section 14 is arranged on the one end 12 side in the resonance tube 11, and a refrigerator section 20 is arranged on the other end 13 side. A first working space 18 is formed between the prime mover section 14 and the one end 12 of the resonance tube 11, and a second working space 19 is formed between the prime mover section 14 and the refrigerator section 20. A third working space 25 is provided between the machine section 20 and the other end 13 of the resonance tube 11.
Are formed.

The prime mover section 14 has a high temperature side heat exchanger 15, a high temperature stack 16 and a room temperature side heat exchanger 17.
The high temperature side heat exchanger 15 is arranged so as to face the first working space 18. A high temperature stack 16 is arranged adjacent to the lower surface of the high temperature side heat exchanger 15, and a plurality of plates 16 a are formed in the high temperature stack 16 in parallel with each other in the longitudinal direction of the resonance tube 11. High temperature stack 1
The room temperature side heat exchanger 17 is arranged so as to be adjacent to the lower surface of 6. Therefore, when the working fluid in the high temperature side heat exchanger 15 absorbs heat from a high temperature heat source (not shown), the heat is transported to the room temperature side heat exchanger 17 via the high temperature stack 16 and one of the heat is absorbed. The part is discharged to the outside by the heat exchanger 17 on the room temperature side, and the rest is converted into work. Due to the work, the working fluid in the resonance tube 11 moves in the longitudinal direction and vibrates, and the pressure in the resonance tube 11 changes.

The refrigerator section 20 is arranged on the other end 13 side of the resonance tube 11 with respect to the portion where the pressure inside the resonance tube 11 does not fluctuate, and the room temperature side heat exchanger 21 and the low temperature stack 22.
And a low temperature side heat exchanger 23. The resonance tube 11 is
The low temperature side heat exchanger 23 is bent so as to be located at the lower end of the resonance tube refrigerator 10 in the drawing, and the lower surface of the low temperature side heat exchanger 23 is a flat surface. An object to be cooled (not shown) is connected to the lower surface of the low temperature side heat exchanger 23.

The resonance tube 11 has a resonance tube 1 rather than a curved portion.
1 has an inner pipe portion 11a located on one end 12 side and an outer pipe portion 11b located on the other end 13 side of the resonance pipe 11 with respect to the euphem portion and arranged around a part of the inner pipe portion 11a. is doing. That is, the resonance tube 11 has a double tube structure.
Inside the outer pipe portion 11b, a room temperature side heat exchanger 21 and a low temperature stack 22 are arranged in order from the other end 13 side of the resonance tube 11, so that the low temperature stack 22 is adjacent to the room temperature side heat exchanger 21. Has become. The room temperature side heat exchanger 21 is the third
It faces the working space 25. In the low temperature stack 22,
A plurality of plates 22a are formed parallel to each other in the longitudinal direction of the resonance tube 11. The low temperature stack 22 is adjacent to the low temperature side heat exchanger 23 via a slit 24 (see FIG. 2) formed in the low temperature side heat exchanger 23. Therefore, due to the vibration of the working fluid generated by the prime mover unit 14, the working fluid in the low temperature side heat exchanger 23 absorbs from the cooled object and cools the cooled object, and the heat thereof passes through the slit 24 and the low temperature stack 22. The heat is transferred to the room temperature side heat exchanger 21, and the heat is released to the outside in the room temperature side heat exchanger 21.

The operation of the resonance tube refrigerator 10 configured as described above will be described.

When the working fluid absorbs heat from the outside in the high temperature side heat exchanger 15, a part of the heat is transported to the room temperature side heat exchanger 17 through the high temperature stack 16 and is transferred to the room temperature side heat exchanger 17. Is released to the outside. As a result, the working gas works, thereby causing a pressure fluctuation in the resonance tube 11 and vibrating the working fluid in the resonance tube 11. Due to the vibration of the working fluid, the working fluid in the low temperature side heat exchanger 23 absorbs heat from the cooled portion and cools the cooled portion. The absorbed heat is transported to the room temperature side heat exchanger 21 via the low temperature stack 22 and is discharged to the outside.

The working gas in the cold stack 22 is at the other end 1
When moving toward the 3rd side, the working fluid is compressed and heat of compression is generated, and when the temperature of the compressed working fluid is higher than the temperature of the adjacent plate 22a, the heat of compression of the working fluid is transferred to the plate 22a. While the heat exchange between the working fluid and the low temperature stack 22 is repeated, the room temperature side heat exchanger 21
Be transmitted to. The heat is released to the outside by the heat exchanger 21 on the room temperature side.

On the other hand, when the working fluid moves toward the one end 12 side, the working fluid in the low temperature side stack 22 expands and its pressure drops. When the temperature of the working fluid in the low temperature stack 22 becomes lower than the temperature of the adjacent plate 22a, the working fluid absorbs heat from the plate 22a, and the heat exchange between the working fluid and the low temperature stack 22 is repeated to pass through the slit 24. To the low temperature side heat exchanger 23, and the low temperature side heat exchanger 23 absorbs heat from the outside.

As described above, in this embodiment, since the low temperature side heat exchanger 23 is located at the end of the resonance tube refrigerator 10, the degree of freedom in attaching the object to be cooled is increased.

Further, the prime mover unit 1 is provided on the end 12 side of the resonance tube 11.
4, because the refrigerator portion 20 is arranged on the other end 13 side, a sufficiently long distance between the prime mover portion 14 and the refrigerator portion 20 can be secured,
It is possible to prevent the refrigerator section 20 from thermally interfering with the prime mover section 14.

Further, since the resonance tube 11 has a double tube structure, the refrigerator 10 can be made compact as compared with the case where the resonance tube 11 is simply bent.

[0025]

The present invention has the following effects.

Since the low temperature side heat exchanger is located at the end of the resonance tube refrigerator, the degree of freedom in mounting the object to be cooled is increased. Further, since the prime mover section is arranged on one end side of the resonance tube and the refrigerator section is arranged on the other end side, it is possible to secure a sufficiently long distance between the prime mover section and the refrigerator section, and the refrigerator section and the prime mover section are thermally coupled. Interference can be prevented.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a resonance tube refrigerator according to this embodiment.

FIG. 2 is an enlarged sectional view taken along line AA of FIG.

[Explanation of symbols]

 10 Resonance Tube Refrigerator 11 Resonance Tube 11a Inner Tube Section 11b Outer Tube Section 12 One End (One End) of Resonance Tube 13 The Other End (Other End) of Resonance Tube 14 Motor Section 15 High Temperature Side Heat Exchanger 16 High Temperature Stack 17 Room Temperature Side heat exchanger 20 Refrigerator part 21 Room temperature side heat exchanger 22 Low temperature stack 23 Low temperature side heat exchanger

Claims (2)

[Claims] 1. A high temperature side heat exchanger, a high temperature stack, and a room temperature side heat exchanger, which are sequentially arranged from one end side of the resonance tube,
A motor part that absorbs heat from the outside on the high temperature side and releases it on the room temperature side to vibrate the working fluid enclosed in the resonance tube, and a room temperature side heat exchanger arranged in order from the other end side of the resonance tube A resonance tube refrigerator having a low temperature stack and a low temperature side heat exchanger, and a refrigerator section that generates refrigeration on the low temperature side by vibration of the working fluid, wherein the low temperature side heat exchanger is A resonance tube refrigerator in which the resonance tube is bent so as to be located at an end of the resonance tube refrigerator. 2. The resonance tube is located on the inner pipe portion located on one end side of the resonance pipe with respect to the bending portion, and on the other end side of the resonance pipe with respect to the bending portion, The resonance tube refrigerator according to claim 1, further comprising: an outer tube portion disposed around the outer tube portion, wherein the room temperature heat exchanger and the low temperature stack are arranged in the outer tube portion.