CN211700911U - Working gas cooling device for rapid axial flow carbon dioxide laser - Google Patents
Working gas cooling device for rapid axial flow carbon dioxide laser Download PDFInfo
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- CN211700911U CN211700911U CN202020625475.0U CN202020625475U CN211700911U CN 211700911 U CN211700911 U CN 211700911U CN 202020625475 U CN202020625475 U CN 202020625475U CN 211700911 U CN211700911 U CN 211700911U
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Abstract
The utility model provides a working gas cooling device for quick axial compressor carbon dioxide laser instrument, include: cold and heat exchange part body, cold and heat exchange part body comprises five cavities that link into an organic whole, and five cavities of cold and heat exchange part body include: the cold and heat exchange component comprises an air inlet cavity in the middle, two heat exchange cavities respectively positioned at two ends of the air inlet cavity, and two air outlet cavities positioned at the edges of two ends of a cold and heat exchange component body; the air outlet cavity is connected with one end of the heat exchange cavity far away from the air inlet cavity, and the two air outlet cavities are symmetrically arranged; the top of the air inlet chamber is provided with a roots pump connector or an air outlet of a carbon dioxide laser shell, the air outlet of the resonant cavity is connected with the end of an air outlet pipe, and two-component air holes are symmetrically arranged at the position of the air outlet pipe close to the tail end; the utility model has the advantages that: the cold and hot exchange part body adopts split type structure welding to form, and processing, maintenance are more convenient to do not influence heat exchange efficiency, the inside multiunit cooling tube that sets up of heat transfer cavity cools down gas, the great improvement of heat exchange efficiency.
Description
Technical Field
The utility model relates to a carbon dioxide laser technical field, more specifically relates to a working gas cooling device for quick axial compressor carbon dioxide laser.
Background
The carbon dioxide laser is one of the most important and widely used gas lasers, has the characteristics of high output power, high photoelectric energy conversion efficiency and the like, and is mainly used for surface modification and welding. The heat exchange device is an important component of the high-power laser, and the performance of the heat exchange device directly influences the processing quality.
The photoelectric conversion efficiency of the carbon dioxide laser is generally about 20%, a large amount of energy is converted into heat energy, and generally, the higher the temperature of the laser working gas is, the lower the photoelectric conversion efficiency is, the more unstable the gas glow discharge is, and even if a high electric power is injected, the lower the output laser power is. When the temperature of the working gas exceeds 700K, the output laser power is almost zero. Therefore, a heat exchange device must be connected in series in a working gas circulation system of the carbon dioxide laser to timely take away 80% of waste heat generated during the working of the laser, so that the photoelectric conversion efficiency is improved, and the continuous, stable and efficient working of the laser is ensured.
Most of laser cooling systems adopt a water cooling mode, so that the heat exchange devices for the lasers all adopt a water-gas exchange mode. The heat exchange device commonly used mainly adopts a tube plate type, a winding plate type and a plate warping type, and main factors influencing the heat exchange efficiency are as follows: heat exchange area, heat exchange time, heat exchange times, temperature difference of media of inner and outer chambers, and heat conduction coefficient of materials of inner and outer chamber walls. In practical applications, the heat exchange area is usually ensured by increasing the volume of the heat exchange device, the heat exchange time is prolonged by increasing the flow-around plate in the outer chamber through which the working gas flows, the heat exchange times are increased by increasing the flow speed of the working gas, and the heat exchange efficiency is improved by adopting a material with high heat conductivity coefficient as the heat exchange device. Meanwhile, the heat exchange device has the defects of large volume, complex structure, difficult cleaning, high manufacturing cost, increased fan burden for flowing working gas and the like.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a working gas cooling device for a fast axial flow carbon dioxide laser, which is used to cool the carbon dioxide laser, so as to overcome the deficiencies of the prior art.
The utility model provides a working gas cooling device for quick axial compressor carbon dioxide laser instrument includes: the improvement of the cold and heat exchange part body is that the cold and heat exchange part body consists of five chambers which are connected into a whole, and the five chambers of the cold and heat exchange part body comprise: the cold and heat exchange component comprises an air inlet cavity in the middle, two heat exchange cavities respectively positioned at two ends of the air inlet cavity, and two air outlet cavities positioned at the edges of two ends of a cold and heat exchange component body; the air outlet cavity is connected with one end of the heat exchange cavity far away from the air inlet cavity, and the two air outlet cavities are symmetrically arranged;
the top of the air inlet cavity is provided with a roots pump interface and/or an air outlet of a carbon dioxide laser shell, the roots pump interface is connected with the roots pump through a flange plate, a plurality of first through holes are uniformly distributed on the side walls of two ends of the air inlet cavity, and the air inlet cavity is rectangular;
a plurality of cooling pipes are uniformly distributed in the heat exchange cavity along the horizontal direction, air inlets of the cooling pipes are communicated with the first through holes, air outlets of the cooling pipes are communicated with the second through holes formed in the side wall of the air outlet cavity, a liquid inlet hole is formed in the position, close to the bottom, of the heat exchange cavity, a liquid outlet hole is formed in the position, close to the top, of the heat exchange cavity, the liquid inlet hole and the liquid outlet hole are respectively connected with a cooling liquid pipe, and the heat exchange cavity is rectangular;
the gas outlet cavity is trapezoidal or triangular, the gas outlet cavity is communicated with the gas inlet cavity through a plurality of cooling pipes, and the top of the gas outlet cavity is provided with a resonant cavity gas outlet connected with the resonant cavity;
the outlet of the resonant cavity is connected with the end of an outlet pipe, and two groups of air holes are symmetrically arranged at the position of the outlet pipe close to the tail end.
Preferably, the heat exchange component body is trapezoidal, and a temperature measuring hole is arranged on an air inlet cavity of the heat exchange component body and is provided with a thermometer.
Preferably, the two cold and heat exchange part bodies are in a group and symmetrically arranged on a frame of the carbon dioxide laser, a liquid exchange pipe is connected between the two cold and heat exchange part bodies, and a throttle valve is arranged on the liquid exchange pipe.
Preferably, a flange connecting seat is arranged at the air outlet of the resonant cavity.
The utility model has the advantages and positive effects that:
1. the utility model discloses a cold and hot exchange part body adopts split type structure welding to form, and processing, maintenance are more convenient to do not influence heat exchange efficiency.
2. The utility model discloses a two sets of heat transfer cavitys are cooled down high-temperature gas for though heat transfer cavity is inside to be cooled down through the cooling tube, but owing to be that two sets of heat transfer cavitys shunt, so can not appear the problem that the heat transfer cavity influences the gas flow velocity, in addition, the multiunit cooling tube of the inside setting of heat transfer cavity is cooled down gas, the great improvement of heat exchange efficiency.
3. The utility model discloses a go out the air cavity and adopt trapezoidal or triangle-shaped structure big-end-up, ensure that the gaseous entering resonant cavity that can be quick of the cooling through heat transfer cavity has improved heat exchange efficiency.
4. The utility model discloses a set up the thermometer on the air inlet cavity of cold and hot exchange part body, temperature in the control carbon dioxide casing that can be real-time, when the high temperature, a set of cold and hot exchange part body can't effectively cool down, can open the choke valve, effectively cools down through two sets of cold and hot exchange part bodies.
Drawings
Other objects and results of the invention will be more apparent and readily appreciated by reference to the following description taken in conjunction with the accompanying drawings, and as the invention is more fully understood. In the drawings:
fig. 1 is a front view of the overall structure according to an embodiment of the present invention.
Fig. 2 is a top view of the overall structure according to an embodiment of the present invention.
Fig. 3 is a cross-sectional view of the overall structure according to an embodiment of the present invention.
Fig. 4 is a schematic view of a mounting structure of a heat exchanging component body according to an embodiment of the present invention.
Wherein the reference numerals include: the device comprises a cold-heat exchange part body 1, an air inlet cavity 2, heat exchange cavities 3 and 4, air outlet cavities 5 and 6, a roots pump connector 7, a flange plate 8, a cooling pipe 9, a first through hole 10, a second through hole 11, an air inlet hole 12, an air outlet hole 13, a resonant cavity air outlet 14, an air outlet pipe 15, an air distribution hole 16, a temperature measuring hole 17, a frame 18 and an air pressure sensor 19.
Detailed Description
In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that such embodiment(s) may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.
Referring to fig. 1-4, the working gas cooling device for fast axial flow carbon dioxide laser of the present invention comprises: the heat exchange component body 1, the heat exchange component body 1 comprises five cavities that link into an organic whole, and five cavities of heat exchange component body 1 include: an air inlet chamber 2 positioned in the middle, two heat exchange cavities 3 and 4 respectively positioned at two ends of the air inlet chamber 2, and two air outlet cavities 5 and 6 positioned at the edges of two ends of the cold and heat exchange part body 1; the air outlet cavity 5 is connected with one end of the heat exchange cavity 3 far away from the air inlet cavity 2, the air outlet cavity 6 is connected with one end of the heat exchange cavity 4 far away from the air inlet cavity 2, and the two air outlet cavities 5 and 6 are symmetrically arranged.
The utility model discloses a roots pump interface 7 has been seted up at the top of air inlet chamber 2, roots pump interface 7 is connected with roots pump through ring flange 8, is provided with pressure sensor 19 on the roof at air inlet chamber 2 both ends, and pressure sensor 19 is used for detecting the atmospheric pressure in air inlet chamber 2, and a plurality of first through-holes 10 have been seted up on the lateral wall at air inlet chamber 2 both ends evenly, and air inlet chamber 2 is the rectangle; a plurality of cooling pipes 9 are uniformly distributed in the heat exchange cavity 3 and the heat exchange cavity 4 along the horizontal direction, air inlets of the cooling pipes 9 are communicated with a first through hole 10, air outlets of the cooling pipes 9 are communicated with a second through hole 11 formed in the side wall of the air outlet cavity 4, liquid inlet holes 12 are formed in the positions, close to the bottom, of the heat exchange cavity 3 and the heat exchange cavity 4, liquid outlet holes 13 are formed in the positions, close to the top, of the heat exchange cavity 3 and the top of the heat exchange cavity 4, the liquid inlet holes 12 and the liquid outlet holes 13 are respectively connected with a cooling liquid pipe, and the heat exchange cavity 3 and the heat; the high-temperature air in the air inlet cavity 2 leads to the air outlet cavity 5 and the air outlet cavity 6 through the cooling pipe 9, and the cooling liquid in the air outlet cavity 5 and the air outlet cavity 6 effectively cools the outer wall of the cooling pipe 9.
The air outlet cavity 5 and the air outlet cavity 6 of the utility model are trapezoidal, the air outlet cavity 5 and the air outlet cavity 6 are communicated with the air inlet cavity 2 through a plurality of cooling pipes 9, and the top parts of the air outlet cavity 5 and the air outlet cavity 6 are provided with a resonant cavity air outlet 14 connected with a resonant cavity; a flange connecting seat is arranged at the resonant cavity gas outlet 14, the resonant cavity gas outlet 14 is connected with the end of a gas outlet pipe 15, and two groups of four gas distributing holes 16 are symmetrically arranged at the position of the gas outlet pipe 15 close to the tail end.
The utility model discloses a cold and hot exchange part body 1 is trapezoidal, is provided with temperature measurement hole 17 on the intake cavity 2 of cold and hot exchange part body 1, installs the thermodetector on the temperature measurement hole 17. Two cold and heat exchange part bodies 1 are a set of, and the symmetry sets up in the frame 18 of carbon dioxide laser, is connected with the liquid changing pipe between two cold and heat exchange part bodies 1, is provided with the choke valve on the liquid changing pipe.
The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (4)
1. A working gas cooling device for a fast axial flow carbon dioxide laser, comprising: a heat exchange member body, characterized in that the heat exchange member body is composed of five chambers connected as a whole, the five chambers of the heat exchange member body include: the cold and heat exchange component comprises an air inlet cavity in the middle, two heat exchange cavities respectively positioned at two ends of the air inlet cavity, and two air outlet cavities positioned at the edges of two ends of a cold and heat exchange component body; the air outlet cavity is connected with one end of the heat exchange cavity far away from the air inlet cavity, and the two air outlet cavities are symmetrically arranged;
the top of the air inlet cavity is provided with a roots pump interface and/or an air outlet of a carbon dioxide laser shell, the roots pump interface is connected with a roots pump through a flange plate, the side walls of two ends of the air inlet cavity are uniformly provided with a plurality of first through holes, and the air inlet cavity is rectangular;
a plurality of cooling pipes are uniformly distributed in the heat exchange cavity along the horizontal direction, air inlets of the cooling pipes are communicated with the first through holes, air outlets of the cooling pipes are communicated with second through holes formed in the side wall of the air outlet cavity, a liquid inlet hole is formed in the position, close to the bottom, of the heat exchange cavity, a liquid outlet hole is formed in the position, close to the top, of the heat exchange cavity, the liquid inlet hole and the liquid outlet hole are respectively connected with a cooling liquid pipe, and the heat exchange cavity is rectangular;
the gas outlet cavity is trapezoidal or triangular, the gas outlet cavity is communicated with the gas inlet cavity through the plurality of cooling pipes, and a resonant cavity gas outlet connected with the resonant cavity is formed in the top of the gas outlet cavity;
the resonant cavity gas outlet is connected with the end of the gas outlet pipe, and two groups of gas holes are symmetrically arranged at the position of the gas outlet pipe close to the tail end.
2. The working gas cooling device for fast axial-flow carbon dioxide laser as claimed in claim 1, wherein the body of the heat exchanging component is trapezoidal, a temperature measuring hole is arranged on the air inlet chamber of the body of the heat exchanging component, and a temperature measuring meter is arranged on the temperature measuring hole.
3. The working gas cooling device for fast axial-flow carbon dioxide laser as claimed in claim 1, wherein the two heat exchanging component bodies are a set and symmetrically arranged on the frame of the carbon dioxide laser, and a liquid exchanging pipe is connected between the two heat exchanging component bodies, and a throttle valve is arranged on the liquid exchanging pipe.
4. The cooling device for working gas of fast axial-flow carbon dioxide laser as claimed in claim 1, wherein a flange connecting seat is provided at the outlet of the resonant cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020625475.0U CN211700911U (en) | 2020-04-23 | 2020-04-23 | Working gas cooling device for rapid axial flow carbon dioxide laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020625475.0U CN211700911U (en) | 2020-04-23 | 2020-04-23 | Working gas cooling device for rapid axial flow carbon dioxide laser |
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| Publication Number | Publication Date |
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| CN211700911U true CN211700911U (en) | 2020-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020625475.0U Active CN211700911U (en) | 2020-04-23 | 2020-04-23 | Working gas cooling device for rapid axial flow carbon dioxide laser |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113644530A (en) * | 2021-07-29 | 2021-11-12 | 陈艳惠 | Gas laser cooling assembly and cooling method thereof |
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2020
- 2020-04-23 CN CN202020625475.0U patent/CN211700911U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113644530A (en) * | 2021-07-29 | 2021-11-12 | 陈艳惠 | Gas laser cooling assembly and cooling method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A working gas cooling device for fast axial flow carbon dioxide lasers Effective date of registration: 20230921 Granted publication date: 20201016 Pledgee: China Everbright Bank Limited by Share Ltd. Changchun branch Pledgor: CHANGCHUN BEIXING LASER ENGINEERING TECHNOLOGY CO.,LTD. Registration number: Y2023220000094 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |