CN110793350B - Tail gas cooling device of metal powder gas atomization equipment - Google Patents
Tail gas cooling device of metal powder gas atomization equipment Download PDFInfo
- Publication number
- CN110793350B CN110793350B CN201911068083.7A CN201911068083A CN110793350B CN 110793350 B CN110793350 B CN 110793350B CN 201911068083 A CN201911068083 A CN 201911068083A CN 110793350 B CN110793350 B CN 110793350B
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- water
- heat dissipation
- pipe
- communicated
- cone
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- 238000001816 cooling Methods 0.000 title claims abstract description 23
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 12
- 239000002184 metal Substances 0.000 title claims abstract description 12
- 239000000843 powder Substances 0.000 title claims abstract description 11
- 238000009689 gas atomisation Methods 0.000 title claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 73
- 230000017525 heat dissipation Effects 0.000 claims abstract description 44
- 239000000428 dust Substances 0.000 claims abstract description 21
- 239000004744 fabric Substances 0.000 claims abstract description 16
- 239000000498 cooling water Substances 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000012387 aerosolization Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 19
- 230000000694 effects Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
- F28D7/024—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/10—Combinations of devices covered by groups B01D45/00, B01D46/00 and B01D47/00
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Of Particles Using Liquids (AREA)
Abstract
The tail gas cooling device of the metal powder gas atomization equipment comprises an atomizer, a tail gas pipe assembly and a cloth bag dust collector, wherein the tail gas pipe assembly is communicated with a gas outlet of the atomizer and a gas inlet of the cloth bag dust collector, one end of a horizontal pipeline is communicated with the gas outlet of the atomizer, the other end of the horizontal pipeline is communicated with the gas inlet of a cyclone cylinder, a heat dissipation cone is arranged in the cyclone cylinder, and fins are fixed on the surface of the heat dissipation cone; an inner layer is fixed in the heat dissipation cone, and a cavity for containing cooling water is formed between the inner layer and the outer wall of the heat dissipation cone; the bottom of the radiating cone is fixed with a water inlet component, and the water inlet component comprises an outer shell, an inner shell, a water turbine, a water inlet pipe and a water outlet pipe; the top end of the inner layer is opened, the opening is communicated with a sewer pipe, and the sewer pipe drains water to the inner shell; the heat dissipation cone is internally fixed with a coaxial rotating shaft, the rotating shaft penetrates through the inner shell and stretches into the outer shell, the rotating shaft is in rotary sealing connection with the bottom surface of the inner shell through a shaft seal, and the bottom end of the rotating shaft is fixed with the water turbine. The device can effectively cool down tail gas.
Description
Technical Field
The invention relates to an auxiliary device of an aerosolization device for producing 3D printing metal powder, in particular to a tail gas cooling device.
Background
In the production of 3d printing metal powder by gas atomization, inert gas is required to be used for impacting molten metal liquid drops, the tail gas temperature is usually higher to about 200 ℃, and the upper limit of the cloth bag working temperature in a cloth bag dust collector is about 180. Therefore, the problem of damage to the cloth bag often occurs.
In addition, the atomizers are usually connected in parallel, and share one tail gas pipeline and the dust collector, and if the atomizers work simultaneously, the tail gas temperature is higher.
Disclosure of Invention
The invention aims to provide a cooling device for effectively cooling tail gas of an atomizer, which is not applicable to extra energy sources.
In order to achieve the aim, the invention comprises a tail gas cooling device of metal powder gas atomization equipment, which comprises an atomizer, a tail gas pipe component and a cloth bag dust collector, wherein the tail gas pipe component is communicated with a gas outlet of the atomizer and a gas inlet of the cloth bag dust collector,
the tail gas pipe assembly comprises a horizontal pipeline, a cyclone barrel, a water inlet assembly and a cooling tower, one end of the horizontal pipeline is communicated with the air outlet of the atomizer, the other end of the horizontal pipeline is communicated with the air inlet of the cyclone barrel, the air inlet of the cyclone barrel is positioned in the middle or lower part of the columnar barrel, and a spiral guide vane is fixed on the inner wall of the columnar barrel to enable air flow to rise spirally;
a heat dissipation cone is arranged in the cyclone cylinder, the heat dissipation cone is coaxial with the columnar cylinder body of the cyclone cylinder, and the bottom end of the heat dissipation cone is level with the bottom end of the air inlet of the cyclone cylinder;
fins are fixed on the surface of the radiating cone;
an inner layer is fixed in the heat dissipation cone, a cavity for containing cooling water is formed between the inner layer and the outer wall of the heat dissipation cone, and the inner layer is also conical and coaxial with the outer wall;
the bottom of the radiating cone is fixed with a water inlet component, and the water inlet component comprises an outer shell, an inner shell, a water turbine, a water inlet pipe and a water outlet pipe; the outer shell is communicated with the bottom surface of the outer wall of the heat dissipation cone through the rotary flange, the inner shell is communicated with the bottom surface of the inner layer through the rotary flange, the outer shell is fixedly connected with the inner shell, and the two rotary flanges are coaxial with the heat dissipation cone;
the top end of the inner layer is opened, the opening is communicated with a sewer pipe, and the sewer pipe drains water to the inner shell; the heat dissipation cone is internally fixed with a coaxial rotating shaft, the rotating shaft penetrates through the inner shell and stretches into the outer shell, the rotating shaft is in rotary sealing connection with the bottom surface of the inner shell through a shaft seal, and the bottom end of the rotating shaft is fixed with a water turbine;
the side of the outer shell is communicated with the water inlet pipe, the inner shell is communicated with the water outlet pipe, the water inlet pipe is communicated with the bottom of the water tank of the cooling tower, and the water outlet pipe is communicated with the water inlet at the top end of the cooling tower.
Further, the top of the heat dissipation cone is fixed with a transmission shaft, the transmission shaft stretches into the volute, one end of the transmission shaft in the volute is fixed with a turbine, the volute is fixed with an air inlet cone pipe, the air inlet cone pipe is coaxial with the volute, the volute is radially communicated with a tangential pressurizing air pipe, and the end part of the pressurizing air pipe is provided with a pressurizing shrinkage cavity which is communicated with an exhaust pipe of the bag dust collector.
Further, the surface of the horizontal pipeline is relatively hot, and a thermoelectric module is fixed on the surface of the horizontal pipeline and is used for supplying power to a water pump, and the water pump is arranged on the water inlet pipe.
Preferably, the inclination angle between the spiral guide vane and the horizontal plane is in the range of 20-40 degrees.
Preferably, the air inlet of the cyclone cylinder is obliquely upwards arranged, and the included angle between the air inlet and the horizontal plane is between 10 and 30 degrees.
The invention has the beneficial effects that:
1. the tail gas of the atomizer can be effectively cooled, and the safety of a cloth bag of the cloth bag dust collector is ensured;
2. is not applicable to additional energy sources, is convenient for reconstruction on the original equipment, and has self-adaptability.
3. The structure is simple, the maintenance and the use are convenient, and the cost is low.
Drawings
Fig. 1 is a schematic diagram of a system.
Fig. 2 is a schematic view of a cooling device.
Fig. 3 is a schematic view of the internal structure of the heat dissipation cone.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1-3, a tail gas cooling device of metal powder gas atomization equipment comprises an atomizer 10, a tail gas pipe assembly 20 and a cloth bag dust collector 60, wherein the tail gas pipe assembly 20 is communicated with an air outlet of the atomizer 10 and an air inlet of the cloth bag dust collector 60.
The tail gas pipe assembly 20 comprises a horizontal pipe, a cyclone 30, a water inlet assembly 40 and a cooling tower 50. One end of the horizontal pipeline is communicated with the air outlet of the atomizer 10, the other end of the horizontal pipeline is communicated with the air inlet of the cyclone cylinder 30, the air inlet of the cyclone cylinder 30 is obliquely upwards arranged, and the included angle between the horizontal pipeline and the horizontal plane is between 10 and 30 degrees. The air inlet of the cyclone 30 is positioned in the middle or lower part of the columnar cylinder, and a spiral guide vane is fixed on the inner wall of the columnar cylinder, so that the air flow rises spirally. The cyclone 30 is internally provided with a heat dissipation cone 31, the cone body is arranged to be beneficial to rotation, if the airflow flows from bottom to top, the resistance is larger, and if the equipment which works simultaneously is fewer, the cylinder body can not overcome the initial resistance and can not rotate. The cone angle of the heat sink cone 31 is preferably between 60-80 degrees. Is made of aluminum alloy with lighter weight. However, other light materials can be used, and the fins can be inserted into the heat dissipation cone 31, so that the heat dissipation effect can be ensured.
The heat dissipation cone 31 is coaxial with the columnar cylinder, and the bottom end of the heat dissipation cone 31 is flush with the air inlet bottom end of the cyclone cylinder 30. Fins 32 are fixed on the surface of the heat dissipation cone 31. The fins 32 are inclined and the fins 32 are preferably layered. The three layers are divided, and the included angles between each layer and the axis are different. Preferably, the angle between the fins 32 and the axis decreases gradually from the lowest level to the uppermost level. The whole is in the range of 60-20 degrees.
An inner layer 33 is fixed in the heat dissipation cone 31, a cavity for containing cooling water is formed between the inner layer 33 and the outer wall of the heat dissipation cone 31, and the inner layer 33 is also conical and coaxial with the outer wall. The bottom of the heat dissipation cone 31 is fixed with a water inlet assembly 40.
The water intake assembly 40 includes an outer housing 41, an inner housing 42, a water turbine 43, a water intake pipe 44, and a water outlet pipe 45. The outer shell 41 is communicated with the bottom surface of the outer wall of the heat dissipation cone 31 through a rotary flange, the inner shell 42 is communicated with the bottom surface of the inner layer 33 through a rotary flange, the outer shell 41 and the inner shell 42 are fixedly connected, and the two rotary flanges are coaxial with the heat dissipation cone 31. The top end of the inner layer 33 is opened, the opening is communicated with the sewer pipe 34, and the sewer pipe 34 drains water to the inner shell 42. The heat dissipation cone 31 is internally fixed with a coaxial rotating shaft 35, the rotating shaft 35 penetrates through the inner shell 42 and stretches into the outer shell 41, the rotating shaft 35 is in rotary sealing connection with the bottom surface of the inner shell 42 through a shaft seal, and the bottom end of the rotating shaft 35 is fixed with the water turbine 43. The side of the outer shell 41 is communicated with a water inlet pipe 44, and the inner shell 42 is communicated with a water outlet pipe 45. The water inlet pipe 44 is communicated with the bottom of the water tank of the cooling tower, and the water outlet pipe 45 is communicated with the water inlet at the top end of the cooling tower. The tail gas enters the cyclone 30 to drive the heat dissipation cone 31 to rotate, so that the water turbine 43 rotates, and the water turbine 43 pumps water in the water tank into the shell 41 and presses the water into the cavity in the heat dissipation cone 31. The water flows from the down pipe 34 into the inner shell and out of the out pipe 45.
The top of the heat dissipation cone 31 is fixed with a transmission shaft 36, the transmission shaft 36 stretches into the volute 38, one end of the transmission shaft 36 positioned in the volute 38 is fixed with a turbine 37, the volute 38 is fixed with an air inlet cone 39, the air inlet cone 39 is coaxial with the volute 38, the volute 38 is radially communicated with a tangential pressurizing air pipe 310, the end part of the pressurizing air pipe 310 is provided with a pressurizing shrinkage cavity 311, and the pressurizing shrinkage cavity 311 is communicated with the exhaust pipe 62 of the bag dust collector 60. The exhaust pipe at the top end of the cyclone 30 is communicated with the air inlet of the bag dust collector 60. The turbine 37, the volute 38, etc. are actually a turbo charger, and the external air flow is introduced to accelerate the air flow speed in the pressurizing air pipe 310, and the pressurizing shrinkage port 311 is communicated with the exhaust pipe 62 of the bag collector 60, so that the negative pressure suction effect can be achieved, and the air flow speed in the bag collector 60 is accelerated. The main reason for doing so is to consider the condition that a plurality of machines work simultaneously, a plurality of atomizers work simultaneously, the amount of tail gas is large, after entering the cyclone, the air flow speed is obviously reduced, dust is easy to accumulate in the pipeline between the cyclone and the cloth bag dust collector, the air flow speed in the cloth bag dust collector is quickened, and the probability of dust deposition in the pipeline can be reduced.
By cooling the heat dissipation cone 31, the air flow temperature can be kept within the working temperature range of the cloth bag dust collector. The device has self-adaptation effect, and the air flow is big, and the velocity of flow is fast, and cooling water circulation speed also accelerates to guarantee the cooling effect. And dust can not be deposited in the pipeline, and the maintenance period is long.
The horizontal tube surface was relatively hot, on the surface of which the thermoelectric module 70 was mounted, (CN 201510219955.0 thermoelectric module and method of manufacturing the same). The thermoelectric module 70 is used to supply power to the water pump 51, and the water pump 51 is mounted on the water inlet pipe 44. The water pump has the function of improving the water flow speed and the heat dissipation effect. The rotation speed of the heat dissipation cone 31 is accelerated.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The tail gas cooling device of the metal powder gas atomization equipment comprises an atomizer, a tail gas pipe assembly and a cloth bag dust collector, wherein the tail gas pipe assembly is communicated with a gas outlet of the atomizer and a gas inlet of the cloth bag dust collector;
a heat dissipation cone is arranged in the cyclone cylinder, the heat dissipation cone is coaxial with the columnar cylinder body of the cyclone cylinder, and the bottom end of the heat dissipation cone is level with the bottom end of the air inlet of the cyclone cylinder;
fins are fixed on the surface of the radiating cone;
an inner layer is fixed in the heat dissipation cone, a cavity for containing cooling water is formed between the inner layer and the outer wall of the heat dissipation cone, and the inner layer is also conical and coaxial with the outer wall;
the bottom of the radiating cone is fixed with a water inlet component, and the water inlet component comprises an outer shell, an inner shell, a water turbine, a water inlet pipe and a water outlet pipe; the outer shell is communicated with the bottom surface of the outer wall of the heat dissipation cone through the rotary flange, the inner shell is communicated with the bottom surface of the inner layer through the rotary flange, the outer shell is fixedly connected with the inner shell, and the two rotary flanges are coaxial with the heat dissipation cone;
the top end of the inner layer is opened, the opening is communicated with a sewer pipe, and the sewer pipe drains water to the inner shell; the heat dissipation cone is internally fixed with a coaxial rotating shaft, the rotating shaft penetrates through the inner shell and stretches into the outer shell, the rotating shaft is in rotary sealing connection with the bottom surface of the inner shell through a shaft seal, and the bottom end of the rotating shaft is fixed with a water turbine;
the side surface of the outer shell is communicated with the water inlet pipe, the inner shell is communicated with the water outlet pipe, the water inlet pipe is communicated with the bottom of the water tank of the cooling tower, and the water outlet pipe is communicated with the water inlet at the top end of the cooling tower; the tail gas enters the cyclone barrel to drive the heat dissipation cone to rotate, so that the water turbine is driven to rotate, and the water turbine pumps water in the water tank into the shell and presses the water into the cavity in the heat dissipation cone; the water flow flows into the inner shell from the water outlet pipe and flows out from the water outlet pipe;
the top of the heat dissipation cone is fixed with a transmission shaft, the transmission shaft stretches into the volute, one end of the transmission shaft in the volute is fixed with a turbine, the volute is fixed with an air inlet cone pipe, the air inlet cone pipe is coaxial with the volute, the volute is radially communicated with a tangential pressurizing air pipe, the end part of the pressurizing air pipe is provided with a pressurizing shrinkage cavity, and the pressurizing shrinkage cavity is communicated with an exhaust pipe of the bag dust collector.
2. The tail gas cooling device of metal powder aerosolization apparatus according to claim 1, wherein the surface of the horizontal conduit is relatively hot, and a thermoelectric module is fixed on the surface of the horizontal conduit, the thermoelectric module being used for supplying power to a water pump, the water pump being mounted on the water inlet pipe.
3. The tail gas cooling device of metal powder aerosolization apparatus according to any one of claims 1 to 2, wherein the inclination angle between the spiral deflector and the horizontal plane is in the range of 20-40 degrees.
4. A metal powder aerosolizing apparatus tail gas cooling device according to any one of claims 1 to 2 wherein the inlet of the cyclone is arranged obliquely upwards with an angle of between 10-30 degrees to the horizontal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911068083.7A CN110793350B (en) | 2019-11-04 | 2019-11-04 | Tail gas cooling device of metal powder gas atomization equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911068083.7A CN110793350B (en) | 2019-11-04 | 2019-11-04 | Tail gas cooling device of metal powder gas atomization equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110793350A CN110793350A (en) | 2020-02-14 |
| CN110793350B true CN110793350B (en) | 2023-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911068083.7A Active CN110793350B (en) | 2019-11-04 | 2019-11-04 | Tail gas cooling device of metal powder gas atomization equipment |
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| Country | Link |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112208023A (en) * | 2020-11-30 | 2021-01-12 | 北京艾科美特新材料开发有限公司 | A multiple cooling system that cools down for inorganic organic composite preparation |
| CN114905046B (en) * | 2022-06-20 | 2023-03-24 | 江苏威拉里新材料科技有限公司 | 3D printing metal powder spraying processing system and using method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2396362Y (en) * | 1999-11-03 | 2000-09-13 | 莫炎明 | Cooling tower driver |
| CN101228409A (en) * | 2005-07-28 | 2008-07-23 | 空中客车法国公司 | Heat exchanger, propulsion unit and aircraft provided therewith |
| CN201909548U (en) * | 2010-12-24 | 2011-07-27 | 湖南思为能源环保有限公司 | Cyclone separation heat exchanger |
| CN207922929U (en) * | 2017-12-26 | 2018-09-28 | 天津必优机电设备技术有限公司 | A kind of jacketed heat exchanger |
| CN108662920A (en) * | 2018-05-14 | 2018-10-16 | 叶桂阳 | A kind of water-cooling device assembly |
| CN211147388U (en) * | 2019-11-04 | 2020-07-31 | 江苏威拉里新材料科技有限公司 | Tail gas cooling device of metal powder gas atomization equipment |
-
2019
- 2019-11-04 CN CN201911068083.7A patent/CN110793350B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2396362Y (en) * | 1999-11-03 | 2000-09-13 | 莫炎明 | Cooling tower driver |
| CN101228409A (en) * | 2005-07-28 | 2008-07-23 | 空中客车法国公司 | Heat exchanger, propulsion unit and aircraft provided therewith |
| CN201909548U (en) * | 2010-12-24 | 2011-07-27 | 湖南思为能源环保有限公司 | Cyclone separation heat exchanger |
| CN207922929U (en) * | 2017-12-26 | 2018-09-28 | 天津必优机电设备技术有限公司 | A kind of jacketed heat exchanger |
| CN108662920A (en) * | 2018-05-14 | 2018-10-16 | 叶桂阳 | A kind of water-cooling device assembly |
| CN211147388U (en) * | 2019-11-04 | 2020-07-31 | 江苏威拉里新材料科技有限公司 | Tail gas cooling device of metal powder gas atomization equipment |
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| CN110793350A (en) | 2020-02-14 |
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