CN111520561B - S-shaped variable-wavelength dust recovery pipeline - Google Patents
S-shaped variable-wavelength dust recovery pipeline Download PDFInfo
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- CN111520561B CN111520561B CN202010309490.9A CN202010309490A CN111520561B CN 111520561 B CN111520561 B CN 111520561B CN 202010309490 A CN202010309490 A CN 202010309490A CN 111520561 B CN111520561 B CN 111520561B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L43/00—Bends; Siphons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/433—Mixing tubes wherein the shape of the tube influences the mixing, e.g. mixing tubes with varying cross-section or provided with inwardly extending profiles
- B01F25/4331—Mixers with bended, curved, coiled, wounded mixing tubes or comprising elements for bending the flow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L43/00—Bends; Siphons
- F16L43/02—Bends; Siphons adapted to make use of special securing means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention discloses an S-shaped variable-wavelength dust recovery pipeline. The bent pipe is arranged along a plane S shape with a circular cross section, the wavelength between each group of two adjacent bent parts on the S shape is gradually increased from the inlet to the outlet, and the wavelength is the distance between the two adjacent bent parts along the connecting line direction between the inlet and the outlet; the amplitude of each bending part on the S shape is gradually increased from the inlet to the outlet, and the amplitude is the vertical distance from the bending part to a connecting line between the inlet and the outlet; the diameter of the circular cross section of the elbow from the inlet to the outlet increases gradually, and the diameter of the outlet is 1.5 times that of the inlet. The invention can avoid explosion caused by overlarge concentration of part of dust due to dust accumulation, can adjust the wavelengths of different sections to adapt to recovery devices of different dust, and can effectively prevent explosion caused by overlarge concentration of the dust.
Description
Technical Field
The invention relates to a dust recovery pipeline, in particular to an S-shaped variable-wavelength dust recovery pipeline.
Background
In laser rapid prototyping machines, selective laser sintering techniques are used to fuse small particles of metal powder into a desired three-dimensional shape by a high energy laser, the three-dimensional shape being converted into a set of slices, and the sintering machine being adapted to build up the slices one on top of the other to obtain the desired part. To avoid the dust concentration too big, dust recovery unit is indispensable. The conventional dust recovery pipeline is a round pipe with a constant diameter, the dust recovery effect is not ideal, and the dust concentration of a working space cannot be well reduced.
Disclosure of Invention
Aiming at the problems, the invention provides an S-shaped variable-wavelength dust recovery pipeline, and designs an S-shaped bent pipe with variable wavelength and section diameter so as to avoid explosion caused by overlarge local concentration due to dust deposition in the pipeline. Through variable wavelength, cross-section diameter, let the dust intensive mixing in the pipeline to reduce local too high phenomenon of dust concentration.
The technical scheme for solving the technical problem is as follows:
the invention comprises an inlet, a bent pipe and an outlet, wherein the inlet and the outlet are respectively arranged at two ends of the bent pipe, the bent pipe is arranged along a plane S shape by a circular cross section, the wavelength between each group of adjacent two bending parts on the S shape is gradually increased from the inlet to the outlet, and the wavelength is the distance between the adjacent two bending parts along the direction of a connecting line between the inlet and the outlet; the amplitude of each bending part on the S shape is gradually increased from the inlet to the outlet, and the amplitude is the vertical distance from the bending part to a connecting line between the inlet and the outlet; the diameter of the circular cross section of the elbow from the inlet to the outlet increases gradually, and the diameter of the outlet is 1.5 times that of the inlet.
The bent pipes with different wavelengths are different in wavelength and gradually increased in amplitude.
The S-shape has at least four bends.
The inlet and the outlet are coaxially arranged on the same straight line.
The inlet and the outlet are respectively connected to the end part of the elbow by a threaded connection.
The included angle of the bent part of the bent pipe is 60 degrees to 120 degrees.
The projection of the bent pipe is S-shaped, the wavelength is continuously changed, the bent pipe can adapt to dust with different flow rates, the contact area between the bent pipe and the wall surface of the pipeline is increased, and explosion caused by overlarge concentration of part of dust due to dust accumulation can be avoided. And the cross section of return bend is circular, and the wavelength of adjustable different sections is in order to adapt to the recovery unit of different dusts, can effectively prevent the explosion that the dust concentration is too big arouses.
The invention has the beneficial effects that:
the dust recovery pipeline provided by the invention is an S-shaped bent pipe with variable wavelength and section diameter, so that explosion caused by overlarge local concentration due to dust deposition in the pipeline is avoided; through variable wavelength, cross-section diameter, let the dust intensive mixing in the pipeline to reduce local too high phenomenon of dust concentration.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of a conventional dust recycling duct.
In the figure: inlet 1, return bend 2, outlet 3.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Examples of the invention
As shown in fig. 1, the embodied pipeline includes an inlet 1, an elbow 2, and an outlet 3, where the inlet 1 and the outlet 3 are respectively disposed at two ends of the elbow 2, and the inlet 1 and the outlet 3 are coaxially disposed on the same straight line. The inlet 1 and the outlet 3 are respectively connected to the end part of the elbow pipe 2 in a threaded connection mode, so that the connection with other devices is convenient, and the installation and the disassembly are convenient.
As shown in fig. 1, the cross section of the elbow 2 is circular, the elbow 2 is arranged along the plane S shape with the circular cross section, the front projection of the elbow is an inverted S shape, each bending part on the S shape is equivalent to a wave,
the S-shape has at least four bends so that the number of wavelengths of the bent tube 2 of different wavelengths is at least four. The wavelength between each group of two adjacent bent parts on the S shape is gradually increased from the inlet 1 to the outlet 3, and the wavelength is the distance between the two adjacent bent parts along the connecting line direction between the inlet 1 and the outlet 3; the amplitude of each bend in the S-shape increases from the inlet 1 to the outlet 3, the amplitude being the vertical distance from the bend to the line along the line between the inlet 1 and the outlet 3. Therefore, at least four wavelengths are gradually increased, which is favorable for reducing the resistance of dust in the bent pipe; the dust can be fully and uniformly mixed in the bent pipe, and the phenomenon of overhigh local dust concentration is avoided, so that explosion is avoided.
The diameter of the circular cross section of the elbow pipe 2 from the inlet 1 to the outlet 3 is gradually increased, and the diameter of the outlet is 1.5 times of the diameter of the inlet, so that the uniform flow rate of dust in the elbow pipe can be ensured, and the local concentration is not too high.
The bent pipes 2 with different wavelengths are different in wavelength and gradually increased in amplitude.
The included angle of the bending part of the bent pipe 2 is 60 degrees to 120 degrees.
When the S-shaped variable-wavelength dust recycling pipeline is used, dust enters from the inlet 1, is uniformly mixed through the elbow pipe 2 and then is discharged from the outlet 3.
The test conditions and the test results of the present example are as follows: the variable wavelength and the variable cross section prevent dust from flowing in the bent pipe, and reduce the possibility of dust accumulation. In the test, the pipe diameter of an inlet is 8cm, the pipe diameter of an outlet is 12cm, and the wavelengths of the bent pipe are respectively 10cm, 12cm, 14cm and 16 cm. Due to the adoption of the shape of the elbow, dust can be subjected to certain resistance in the process from the inlet 1 to the outlet 3, and dust accumulation is avoided. The dust concentration at the inlet 1 is greater than the dust concentration at the outlet 3.
Comparative example:
as shown in fig. 2, the embodied pipeline includes an inlet 1, an elbow 2, and an outlet 3, where the inlet 1 and the outlet 3 are respectively disposed at two ends of the elbow 2, and the inlet 1 and the outlet 3 are coaxially disposed on the same straight line. The inlet 1 and the outlet 3 are respectively connected to the end part of the elbow pipe 2 in a threaded connection mode, so that the connection with other devices is convenient, and the installation and the disassembly are convenient.
As shown in fig. 2, the cross section of the bent pipe 2 is circular, and the bent pipe 2 is arranged along a plane S shape with the circular cross section, and the S shape has four bends.
The wavelength between each set of two adjacent bends in the S-shape remains constant from the inlet 1 to the outlet 3, the amplitude of each bend in the S-shape remains constant from the inlet 1 to the outlet 3, and the diameter of the circular cross-section of the elbow 2 remains constant from the inlet 1 to the outlet 3.
The included angle of the bending part of the bent pipe 2 is 60 degrees to 120 degrees.
The comparative example was tested and the test conditions and test results were as follows: in the test, a bent pipe with constant wavelength and section is adopted, the pipe diameter of an inlet is 8cm, the pipe diameter of an outlet is 8cm, and the wavelength of the bent pipe is 12 cm. Due to the shape of the elbow, the dust will be subjected to a certain resistance in the process from the inlet 1 to the outlet 3, but the test effect is not as good as that of the elbow with the variable wavelength and the variable cross section as shown in fig. 1. This is because the dust concentration and flow rate at the inlet and outlet are different, and the variable wavelength and variable cross-section of figure 1 can accommodate different concentrations and flow rates of dust and therefore works better.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a variable wavelength dust recovery pipeline of S type, includes entry (1), return bend (2), export (3), and the both ends of return bend (2) are entry (1) and export (3) respectively, its characterized in that: the bent pipe (2) is arranged along a plane S shape with a circular cross section, the wavelength between each group of two adjacent bent parts on the S shape is gradually increased from the inlet (1) to the outlet (3), and the wavelength is the distance between the two adjacent bent parts along the connecting line direction between the inlet (1) and the outlet (3); the amplitude of each bending part on the S shape is gradually increased from the inlet (1) to the outlet (3), and the amplitude is the vertical distance from the bending part to a connecting line between the inlet (1) and the outlet (3); the diameter of the circular cross section of the elbow (2) from the inlet (1) to the outlet (3) increases gradually, and the diameter of the outlet is 1.5 times of the diameter of the inlet.
2. An S-shaped variable wavelength dust recycling pipeline according to claim 1, characterized in that:
the bent pipes (2) with different wavelengths are different in wavelength and gradually increased in amplitude.
3. An S-shaped variable wavelength dust recycling pipeline according to claim 1, characterized in that:
the S-shape has at least four bends.
4. An S-shaped variable wavelength dust recycling pipeline according to claim 1, characterized in that:
the inlet (1) and the outlet (3) are coaxially arranged on the same straight line.
5. An S-shaped variable wavelength dust recycling pipeline according to claim 1, characterized in that:
the inlet (1) and the outlet (3) are respectively connected to the end part of the elbow (2) in a threaded connection mode.
6. An S-shaped variable wavelength dust recycling pipeline according to claim 1, characterized in that:
the included angle of the bent part of the bent pipe (2) is 60-120 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010309490.9A CN111520561B (en) | 2020-04-20 | 2020-04-20 | S-shaped variable-wavelength dust recovery pipeline |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010309490.9A CN111520561B (en) | 2020-04-20 | 2020-04-20 | S-shaped variable-wavelength dust recovery pipeline |
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| CN111520561A CN111520561A (en) | 2020-08-11 |
| CN111520561B true CN111520561B (en) | 2021-12-17 |
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Citations (6)
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| EP2082796A1 (en) * | 2004-09-21 | 2009-07-29 | HeliSwirl Petrochemicals Limited | Olefin production furnace with a helical tube |
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| CN206170409U (en) * | 2016-11-21 | 2017-05-17 | 山东东方宏业化工有限公司 | Polybutylene mixer dust recovery system |
| CN207906041U (en) * | 2018-01-31 | 2018-09-25 | 中国冶金地质总局山东正元地质勘查院 | A kind of electrostatic precipitation air compressor machine |
| CN208660590U (en) * | 2018-07-30 | 2019-03-29 | 北京荣耀科技有限责任公司 | A kind of demisting device for reducing dust |
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| DE102005018373A1 (en) * | 2005-04-20 | 2006-10-26 | BSH Bosch und Siemens Hausgeräte GmbH | Flexible suction hose |
| CA2814836A1 (en) * | 2012-05-04 | 2013-11-04 | Phoenix Geothermal Services, LLC | U-bend fitting |
| US20170074870A1 (en) * | 2014-03-14 | 2017-03-16 | Northeastern University | Microfluidic System and Method for Real-Time Measurement of Antibody-Antigen Binding and Analyte Detection |
| CN203940160U (en) * | 2014-06-19 | 2014-11-12 | 广东正鹏生物质能源科技有限公司 | A kind of biological fuel gas elbow with dedusting function |
| CN107308749B (en) * | 2017-07-21 | 2019-05-21 | 西安交通大学 | Heat accumulating type moving granular bed dust removal filter and its working method |
| CN107990075A (en) * | 2017-11-30 | 2018-05-04 | 苏州水博士建材科技有限公司 | A kind of drainage pipeline elbow and the drainage system including the elbow |
| CN209501369U (en) * | 2018-12-29 | 2019-10-18 | 福建龙净环保股份有限公司 | A kind of flue gas SCR denitration device with mixed fume and dust effect |
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2020
- 2020-04-20 CN CN202010309490.9A patent/CN111520561B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2082796A1 (en) * | 2004-09-21 | 2009-07-29 | HeliSwirl Petrochemicals Limited | Olefin production furnace with a helical tube |
| CN101790446A (en) * | 2007-08-27 | 2010-07-28 | 博里利斯技术有限公司 | Equipment and process for producing polymer pellets |
| CN103939929A (en) * | 2014-04-28 | 2014-07-23 | 中国能源建设集团广东省电力设计研究院 | Smoke duct device and reducing elbow thereof |
| CN206170409U (en) * | 2016-11-21 | 2017-05-17 | 山东东方宏业化工有限公司 | Polybutylene mixer dust recovery system |
| CN207906041U (en) * | 2018-01-31 | 2018-09-25 | 中国冶金地质总局山东正元地质勘查院 | A kind of electrostatic precipitation air compressor machine |
| CN208660590U (en) * | 2018-07-30 | 2019-03-29 | 北京荣耀科技有限责任公司 | A kind of demisting device for reducing dust |
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