JPS6141268Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a gas laser oscillation device, and more specifically to a gas laser oscillation device in which a large number of water pipes are three-dimensionally provided in the gas cooling chamber of a circulating gas laser oscillation device, which are perpendicular to the gas flow path. It is related to the device.

Originally, it is necessary to orderly circulate a laser oscillation gas (for example, carbon dioxide gas, etc.) within a certain temperature range in the discharge electrode part of the gas laser oscillation chamber to oscillate a stable laser.

The conventional heat exchanger for keeping the gas within a certain temperature range is manufactured separately from the laser gas circulation container of the laser oscillator, and the two are later combined. A current plate is required to guide the gas flow so that the laser gas hits the heat exchanger at right angles, and this is inconvenient because of its low cooling efficiency.

The present invention has been made to solve the above-mentioned disadvantages of the conventional apparatus, and a preferred embodiment of the apparatus will be described in detail below with reference to the drawings.

A gas laser oscillation device 1, which is an embodiment of the present invention shown in FIGS. 1 and 2, has a horizontal cylindrical oscillation chamber 3 at the upper center, and a gas A cooling chamber 5 is provided vertically,
A power chamber 7 is provided at the bottom, and a rectification chamber 9 is provided on the other side (left side) to make the flow of gas orderly.

In this way, the laser oscillation gas is circulated through the four cylindrical chambers by, for example, a blower in the power chamber 7, and the gas whose temperature has risen in the oscillation chamber 3 is cooled in the gas cooling chamber 5. Driven by the blower in the power chamber 7, the flow of gas is adjusted in the rectifier chamber 9, and the gas is continuously circulated and supplied to the discharge electrode section in the oscillation chamber 3 at a constant desired temperature.

What is shown in the front center of the oscillation chamber 3 in FIGS. 1 and 2 is a mirror device 11 for laser oscillation.
The power chamber 7 shown in a cylindrical shape in FIG. 1 is an example in which an axial flow type blower (a type in which fluid is sent in the axial direction of the rotating fan) is used.
FIG. 2 shows an embodiment in which a radial type (a type in which fluid is sent in a direction perpendicular to the axis of a rotating fan, such as a Sirotskov fan), which has a rectangular tube shape, is used.

As is clear from the description in FIGS. 1 and 2, flange substrates are provided on both sides of the assembly in which the oscillation chamber 3 and the power chamber 7 are fixed in advance, and each flange substrate is provided with the above-mentioned Cooling chamber 5 and rectification chamber 9
are assembled respectively.

3 and 4 both show the gas cooling chamber 5 of the apparatus of this embodiment.

The gas cooling chamber 5 has a box shape with a flange frame 15 on one side connected to the flange base plate 13 of the assembly in which the cylinders of the oscillation chamber 3 and the power chamber 7 are fixed vertically in advance. It is composed of thick side plates 17, 19 and a thin plate part 21 covering the remaining three sides.

Water pipe 2 passing through the above-mentioned side plates 17 and 19
3 are provided and fixed to both side plates 17 and 19 by suitable means such as welding.

The water tube 23 shown in FIG. 3 is a spiral tube, and the fourth
The figure shows an example in which a heat dissipation plate is attached in the form of a fin.

There is a left water chamber 2 on the outside of the above-mentioned side plates 17 and 19.
5 and a right water chamber 27 are provided, and the left water chamber 25 has a partition plate 29 that vertically divides the left water chamber 25 into two.
The right water chamber 27 is provided with partition plates 31 and 33 that vertically divide the right water chamber 27 into three parts.

Also, the top of the partition plate 31 of the right water chamber 27 and the partition plate 33
A cooling water outlet 35 and an inlet 37 are provided below, and an air vent blind cover 3 is provided on the upper end surface of the right water chamber 27.
9 is provided, and a blind lid 40 for draining water is provided on the lower end surface of the left water chamber 25.

Furthermore, a horizontal baffle plate 41 is installed between the left and right side plates 17 and 19.
and a vertical baffle plate 43 are provided in the gas cooling chamber 5.
The flow path is regulated so that the gas flowing into the water pipe 23 always passes around the water pipe 23 described above.

Furthermore, longitudinal reinforcing plates 45 are appropriately fixed to the upper and lower sides of the thin plate portion 21 described above.

In the gas laser oscillation device 1 described in detail above, gas whose temperature has exceeded a desired gas temperature range is guided to the gas cooling chamber 5, guided by a horizontal baffle plate 41 and a vertical baffle plate 43, and is guided through a large number of gas flow paths perpendicular to the gas flow path. It descends securely around the water pipe 23. On the other hand, the cooling water led from the cooling water inlet 37 to the right water chamber 27 flows into the left water chamber 25 and the right water chamber 2 as indicated by the arrows shown in Figures B in Figures 3 and 4.
7 and exchange heat with the gas before being discharged from the discharge port 35. A large number of water pipes 23 are used in a relatively narrow space in a spiral shape or with heat dissipation fins. As a result, a gas laser oscillation device with high heat exchange efficiency was obtained.

As can be understood from the above description of the embodiments, the gist of the present invention is as stated in the claims for utility model registration. The chamber and a power chamber for circulating laser gas are assembled together in advance to form one assembly, and a rectification chamber is attached to one side of this assembly.
A gas cooling chamber is attached to the other side of the assembly. A large number of cooling pipes are arranged in the laser gas flow path formed in the gas cooling chamber at right angles to the flow direction of the laser gas.
That is, in the present invention, a gas cooling chamber is formed by assembling a rectifying chamber on one side of the assembly, forming a flow path for the laser gas in advance, and arranging a large number of cooling pipes in the flow path. Since it is configured to be assembled on the other side, there is no need to separately incorporate a heat exchanger into the flow path that guides the laser gas from the oscillation chamber to the power chamber, making the overall assembly of the laser oscillation device easy and compact. It is something that can be transformed into

[Brief explanation of drawings]

Fig. 1 is a perspective view of the first embodiment of the device of the present invention, Fig. 2 is a perspective view of the second embodiment of the same as above, Fig. 3 is a three-sided view of one embodiment of the gas cooling chamber as above, and Fig. 4 is a perspective view of the device of the second embodiment of the invention. It is a 3-sided view of another Example same as the above. Explanation of symbols representing main parts of the drawings: 1... Gas laser oscillation device, 3... Oscillation chamber, 5... Gas cooling chamber, 7... Power chamber, 9... Rectification chamber, 23... Water tube, 25... Left water chamber, 41...Horizontal baffle board.

Claims (1)

[Scope of utility model registration request] A rectifying chamber 9 for rectifying the laser gas flowing into the oscillating chamber 3 is attached to one side of the assembly in which the laser oscillation chamber 3 and the power chamber 7 for circulating the laser gas are integrally assembled in advance. and a baffle plate is arranged in the gas cooling chamber 5 attached to the other side of the assembly to form a flow path for the laser gas,
A gas laser oscillation device characterized in that a large number of cooling pipes extending in a direction perpendicular to the flow direction of the laser gas are disposed in the laser gas flow path.