CN108106014B - Wind column rectifying device of wind state test equipment - Google Patents
Wind column rectifying device of wind state test equipment Download PDFInfo
- Publication number
- CN108106014B CN108106014B CN201711212391.3A CN201711212391A CN108106014B CN 108106014 B CN108106014 B CN 108106014B CN 201711212391 A CN201711212391 A CN 201711212391A CN 108106014 B CN108106014 B CN 108106014B
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- wind
- water conservancy
- conservancy diversion
- pipeline
- diversion circle
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- 238000012360 testing method Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 6
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 6
- 241001330002 Bambuseae Species 0.000 claims abstract description 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 6
- 239000011425 bamboo Substances 0.000 claims abstract description 6
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 230000030279 gene silencing Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000010998 test method Methods 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 description 4
- 239000008236 heating water Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention provides a wind column rectifying device of wind state test equipment, which comprises: the pipeline fan and pipeline, the air intake department of pipeline is equipped with outer water conservancy diversion circle, and the big mouth end and the pipeline fan of outer water conservancy diversion circle are connected, and the osculum end and the big mouth end of interior water conservancy diversion circle of outer water conservancy diversion circle are connected, and outer water conservancy diversion circle and interior water conservancy diversion circle junction are equipped with the clearance, are equipped with central rectification section of thick bamboo and rectification straight tube in proper order from interior to exterior in the pipeline, and the osculum end and the one end of rectification straight tube of interior water conservancy diversion circle are connected, and the tip of central rectification section of thick bamboo is located in the osculum end of interior water conservancy diversion circle. The invention can lead the wind speed of each point of the section of the generated wind column, which is positioned at the position of 900cm away from the air outlet, to be uniform, the error is less than +/-10 percent, and the invention meets the test method requirement specified by the standard; the structure is compact, the power requirement on the used pipeline fan is less than a plurality of times of that of the existing similar equipment, a large amount of power resources are saved, and meanwhile, the noise of a laboratory is reduced.
Description
Technical Field
The invention relates to a gas water heater and a gas heating water heater windy state test device, in particular to a wind column rectifying device arranged on the gas water heater and the gas heating water heater windy state test device.
Background
In GB25034, the gas heating water heater is required to be tested in the presence of wind; test conditions require that the test equipment be able to produce a "cylindrical shape with a wind front of about 90cm long/60 cm in diameter". The wind speed can reach 12.5m/s, and the precision is +/-10%; it is also required that the wind flow should be parallel with no residual rotation.
In order to meet the test conditions, the existing test equipment is provided with a huge airflow rectifying pipe section at the air outlet of the fan, and the length of the airflow rectifying pipe section of the detection equipment exceeds 5.5 meters. Since the test method is to test at plane angles of 0 DEG, 45 DEG, 90 DEG and vertical angles of 0 DEG+30 DEG and-30 DEG respectively, and the detected heating stove is to be installed vertically for use, i.e. to test at different angles, huge detection equipment is to be installed in a tall room, and the maximum wind speed of the center of the wind column section is far greater than the wind speed of the edge of the wind column section, even several times the wind speed of the edge. Therefore, detection mechanisms at some national levels in China do not realize detection of the windy state of the gas heating water heater according to the standard.
Disclosure of Invention
In order to solve the technical problems, the invention provides the wind column rectifying device of the wind state test equipment, which meets the test method requirements specified by the standard.
In order to achieve the above object, the technical scheme of the present invention is as follows:
a wind column fairing of a wind condition testing apparatus, comprising: the pipeline fan and pipeline, the air intake department of pipeline is equipped with outer water conservancy diversion circle, outer water conservancy diversion circle's big mouth end with pipeline fan connects, outer water conservancy diversion circle's osculum end is connected with the big mouth end of interior water conservancy diversion circle, outer water conservancy diversion circle with interior water conservancy diversion circle junction is equipped with the clearance, be equipped with central rectification section of thick bamboo and rectification straight tube in proper order from interior to exterior in the pipeline, interior water conservancy diversion circle's osculum end with the one end of rectification straight tube is connected, the one end part of central rectification section of thick bamboo is located in the osculum end of interior water conservancy diversion circle.
Preferably, one end of the central rectifying cylinder, which is communicated with the inner guide ring, is a conical end surface.
Preferably, the conical end surface is completely arranged in the small opening end of the inner guide ring.
Preferably, a small hole is arranged at the center of the conical end face.
Preferably, an injection rectifying cone is arranged at the air outlet of the pipeline.
Preferably, the outer guide ring is connected with the inner guide ring through a gap bracket, so that a gap is reserved at the joint of the outer guide ring and the inner guide ring.
Preferably, the central rectifying cylinder is connected with the rectifying straight pipe through a small bracket.
Preferably, the straight rectifying pipe is connected with the pipeline through a large bracket.
Preferably, the inner wall of the pipeline is provided with a silencing material.
The invention has the advantages and positive effects that:
1. according to the invention, by arranging the gaps and the small holes, the air flow entering the pipeline is divided into the outer ring low-speed air column, the central low-speed air column and the annular high-speed air column, and the outer ring low-speed air column and the central low-speed air column are arranged on the outer side and the inner side of the annular high-speed air column, so that vortex generation is reduced when the high-speed air flows forwards, and rapid expansion is avoided;
2. the outlet of the invention is provided with the injection rectifying cone, so that the air flow at the air outlet flows towards the direction of the central axis, and the outward expansion of the air column is further restrained;
3. the combined action can lead the wind speed of each point of the section of the generated wind column, which is located at the position of 900cm away from the air outlet, to be uniform, the error is less than +/-10 percent, and the requirements of a test method specified by the standard are met;
4. the wind column rectifying device provided by the invention has a compact structure, has a volume which is several times smaller than that of the existing similar equipment, and can be installed and used in a common laboratory;
5. the power requirement of the wind column rectifying device provided by the invention on the used pipeline fan is less than a plurality of times of that of the existing similar equipment, a large amount of electric power resources are saved, and meanwhile, the noise of a laboratory is reduced.
Drawings
FIG. 1 is a schematic view showing the structure of an embodiment of the present invention
In the figure:
1. pipeline fan 2, outer guide ring 3 and inner guide ring
4. Injection rectifying cone 5, air outlet 6 and rectifying straight pipe
7. Pipe 8, central rectifying cylinder 9, gap
10. Small hole
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clear, a specific embodiment of the present invention will be specifically described below with reference to the accompanying drawings, and the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment provides a wind column rectifying device of a wind state test device, including as shown in fig. 1: the pipeline fan 1 and the pipeline 7, the air inlet of the pipeline 7 is provided with an outer guide ring 2, the large-mouth end of the outer guide ring is connected with the pipeline fan, the small-mouth end of the outer guide ring is connected with the large-mouth end of the inner guide ring 3, and the joint of the outer guide ring and the inner guide ring is provided with a gap 9, so that a small part of air flow entering the pipeline enters an annular space between the pipeline and the rectifying straight pipe through the gap, and the gap is smaller, so that the speed of the generated outer ring wind column is lower; a central rectifying cylinder 8 and a rectifying straight pipe 6 are sequentially arranged in the pipeline from inside to outside, and the small opening end of the inner guide ring is connected with one end of the rectifying straight pipe, so that most air flow entering the pipeline directly enters the rectifying straight pipe at a high speed; the end of the central rectifying tube, which is communicated with the inner guide ring, is a conical end surface, the conical end surface is completely arranged in the small opening end of the inner guide ring, a small hole 10 is arranged at the center of the conical end surface, and because the central rectifying tube is positioned in the rectifying straight tube, a small part of air flow can enter the central rectifying tube through the small hole, and because the small hole has smaller size, the wind speed is smaller, and the generated central wind column speed is lower; the air outlet 5 of the pipeline is provided with an injection rectifying cone 4, which is beneficial to the flow of the air column at the outlet to the center and reduces the outward expansion of the air column. The outer guide ring is connected with the inner guide ring through a gap bracket, so that a gap is reserved at the joint of the outer guide ring and the inner guide ring. The center rectifying cylinder is connected with the rectifying straight pipe through a small bracket. The rectifying straight pipe is connected with the pipeline through a large bracket. The gap support, the small support and/or the large support are U-shaped or Z-shaped, the general support is welded on the outer cylinder, the inner cylinder is fixed with the support by bolts and nuts, and the gap support, the small support and/or the large support can be of any structure for realizing the specified connection, and are not limited to the support form.
The air quantity of the annular space between the pipeline 7 and the central rectifying cylinder 8 can be adjusted by adjusting the gap between the outer guide ring 2 and the inner guide ring 3; by changing the diameter of the small hole on the end face of the central rectifying cylinder 8, the air quantity entering the central rectifying cylinder 8 can be changed, so that the air speed of each point on the section which reaches the specified distance from the air outlet reaches the air speed required by the test, the air speeds of each point on the section are uniform, and the specific numerical values of the gap 9 and the small hole 10 can be specifically designed according to different test requirements. In order to further reduce noise, a silencing material is arranged on the inner wall of the pipeline.
When the air flow is used, a small part of air flow enters an annular space between the pipeline and the rectifying straight pipe through a gap between the outer guide ring and the inner guide ring to form an outer ring low-speed air column; in addition, a small part of air flow enters the central rectifying cylinder from the small hole at the end surface of the central rectifying cylinder to form a central low-speed air column; most of the air flow enters the annular space between the rectifying straight pipe and the central rectifying cylinder to form a high-speed annular air column. When the wind column leaves the outlet of the straight rectifying pipe, because the outside and the inside of the high-speed annular wind column are provided with air flows flowing in the same direction, vortex caused by negative pressure is not generated basically, the high-speed annular wind column cannot expand sharply when flowing forwards rapidly, and part of the high-speed annular wind column can diffuse outwards and inwards, so that the wind speed at the section of the whole wind column tends to be uniform. When the air column leaves the air outlet, the air column is ejected to the central axis direction due to the action of the ejection rectifying cone outside the air outlet, so that the outward expansion of the annular air column is further restrained. In the flowing process of the fast flowing annular wind column, the annular wind column is expanded inwards and outwards smoothly, a solid circular wind column is basically formed when the distance from the wind outlet to 900cm is reached, and the wind speed of each point is basically uniform from the axis of the wind column to the edge of the wind column at the section, and the error is less than +/-10%.
The power of the pipeline fan used by the invention is reduced to 4.5 kilowatts from tens of kilowatts, and a large amount of electric power resources are saved.
According to the invention, by arranging the gaps and the small holes, the air flow entering the pipeline is divided into the outer ring low-speed air column, the central low-speed air column and the annular high-speed air column, and the outer ring low-speed air column and the central low-speed air column are arranged on the outer side and the inner side of the annular high-speed air column, so that vortex generation is reduced when the high-speed air flows forwards, and rapid expansion is avoided; the outlet of the invention is provided with the injection rectifying cone, so that the air flow at the air outlet flows towards the direction of the central axis, and the outward expansion of the air column is further restrained; the combined action can lead the wind speed of each point of the section of the generated wind column, which is located at the position of 900cm away from the air outlet, to be uniform, the error is less than +/-10 percent, and the requirements of a test method specified by the standard are met; the wind column rectifying device provided by the invention has a compact structure, has a volume which is several times smaller than that of the existing similar equipment, and can be installed and used in a common laboratory; the power requirement of the wind column rectifying device provided by the invention on the used pipeline fan is less than a plurality of times of that of the existing similar equipment, a large amount of electric power resources are saved, and meanwhile, the noise of a laboratory is reduced.
In describing embodiments of the present invention, the terms "mounted," "connected," and "connected" are to be construed broadly, as the term "mounted," "connected," and "connected," will be understood to those of ordinary skill in the art, in a specific sense, unless explicitly stated or defined otherwise.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus to be referred to must have a specific direction, and thus should not be construed as limiting the present invention.
The above examples are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention, but it should be understood by those skilled in the art that the present invention is not limited thereto, and that the present invention is described in detail with reference to the foregoing examples: any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or perform equivalent substitution of some of the technical features, while remaining within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and are intended to be included in 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 (9)
1. A wind column fairing of a wind condition testing apparatus, comprising: the pipeline fan and pipeline, the air intake department of pipeline is equipped with outer water conservancy diversion circle, outer water conservancy diversion circle's big mouth end with pipeline fan connects, outer water conservancy diversion circle's osculum end is connected with the big mouth end of interior water conservancy diversion circle, outer water conservancy diversion circle with interior water conservancy diversion circle junction is equipped with the clearance, be equipped with central rectification section of thick bamboo and rectification straight tube in proper order from interior to exterior in the pipeline, interior water conservancy diversion circle's osculum end with the one end of rectification straight tube is connected, the one end part of central rectification section of thick bamboo is located in the osculum end of interior water conservancy diversion circle.
2. The wind column rectifying device of a wind condition testing apparatus according to claim 1, wherein: one end of the central rectifying cylinder, which is communicated with the inner guide ring, is a conical end surface.
3. The windy condition testing apparatus wind post rectifying device according to claim 2, wherein: the conical end face is completely arranged in the small opening end of the inner guide ring.
4. A wind column fairing of a wind condition testing apparatus according to claim 3, wherein: and a small hole is arranged at the center of the conical end face.
5. The wind column rectifying device of a wind condition testing apparatus according to claim 4, wherein: an injection rectifying cone is arranged at the air outlet of the pipeline.
6. The wind column rectifying device of a wind condition testing apparatus according to any one of claims 1 to 4, wherein: the outer guide ring is connected with the inner guide ring through a gap bracket, so that a gap is reserved at the joint of the outer guide ring and the inner guide ring.
7. The wind column rectifying device of a wind condition testing apparatus according to claim 6, wherein: the center rectifying cylinder is connected with the rectifying straight pipe through a small bracket.
8. The windy condition testing apparatus wind post rectifying device according to claim 7, wherein: the rectifying straight pipe is connected with the pipeline through a large bracket.
9. The wind column rectifying device of a wind condition testing apparatus according to claim 1, wherein: and the inner wall of the pipeline is provided with a silencing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711212391.3A CN108106014B (en) | 2017-11-28 | 2017-11-28 | Wind column rectifying device of wind state test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711212391.3A CN108106014B (en) | 2017-11-28 | 2017-11-28 | Wind column rectifying device of wind state test equipment |
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| Publication Number | Publication Date |
|---|---|
| CN108106014A CN108106014A (en) | 2018-06-01 |
| CN108106014B true CN108106014B (en) | 2024-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711212391.3A Active CN108106014B (en) | 2017-11-28 | 2017-11-28 | Wind column rectifying device of wind state test equipment |
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| Country | Link |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19626220C1 (en) * | 1996-06-29 | 1997-10-09 | Schako Metallwarenfabrik | Air outlet in room ceiling |
| CN101034033A (en) * | 2007-01-16 | 2007-09-12 | 中国计量学院 | Wind tunnel calibration method for large flow gas pipeline averaging velocity tube flowmeter |
| CN101430257A (en) * | 2008-12-11 | 2009-05-13 | 江苏省产品质量监督检验研究院 | Simulation wind resistance test system for gas water heater |
| DE202010011824U1 (en) * | 2010-08-26 | 2010-11-04 | Büche, Benedict | Generator with hollow rotor tube and front welded funnel with integrated wind blades, which drive him through the impending wind to generate electricity |
| CN103016380A (en) * | 2012-12-05 | 2013-04-03 | 西安理工大学 | Method and device for determining performance of blade tip clearance region of cooling fan of automobile engine |
| CN204228189U (en) * | 2014-10-27 | 2015-03-25 | 中华人民共和国顺德出入境检验检疫局 | Nature exhaust gas heater has wind condition test device |
| CN104880294A (en) * | 2015-06-12 | 2015-09-02 | 中国能源建设集团广东省电力设计研究院有限公司 | Wind generating rectification system for floating fan model test |
| CN105570598A (en) * | 2016-03-08 | 2016-05-11 | 兰州理工大学 | Pipe rectifying device |
| CN107130917A (en) * | 2017-06-26 | 2017-09-05 | 中国矿业大学 | A kind of mine air-lack kinetic energy managing device and method |
| CN207688441U (en) * | 2017-11-28 | 2018-08-03 | 天津市迅尔自控设备制造有限公司 | Wind column rectifying device of wind condition test equipment |
-
2017
- 2017-11-28 CN CN201711212391.3A patent/CN108106014B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19626220C1 (en) * | 1996-06-29 | 1997-10-09 | Schako Metallwarenfabrik | Air outlet in room ceiling |
| CN101034033A (en) * | 2007-01-16 | 2007-09-12 | 中国计量学院 | Wind tunnel calibration method for large flow gas pipeline averaging velocity tube flowmeter |
| CN101430257A (en) * | 2008-12-11 | 2009-05-13 | 江苏省产品质量监督检验研究院 | Simulation wind resistance test system for gas water heater |
| DE202010011824U1 (en) * | 2010-08-26 | 2010-11-04 | Büche, Benedict | Generator with hollow rotor tube and front welded funnel with integrated wind blades, which drive him through the impending wind to generate electricity |
| CN103016380A (en) * | 2012-12-05 | 2013-04-03 | 西安理工大学 | Method and device for determining performance of blade tip clearance region of cooling fan of automobile engine |
| CN204228189U (en) * | 2014-10-27 | 2015-03-25 | 中华人民共和国顺德出入境检验检疫局 | Nature exhaust gas heater has wind condition test device |
| CN104880294A (en) * | 2015-06-12 | 2015-09-02 | 中国能源建设集团广东省电力设计研究院有限公司 | Wind generating rectification system for floating fan model test |
| CN105570598A (en) * | 2016-03-08 | 2016-05-11 | 兰州理工大学 | Pipe rectifying device |
| CN107130917A (en) * | 2017-06-26 | 2017-09-05 | 中国矿业大学 | A kind of mine air-lack kinetic energy managing device and method |
| CN207688441U (en) * | 2017-11-28 | 2018-08-03 | 天津市迅尔自控设备制造有限公司 | Wind column rectifying device of wind condition test equipment |
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| CN108106014A (en) | 2018-06-01 |
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Country or region after: China Address after: 300380 Virtual Park-304, No.1 Gonghua Road, Huayuan Industrial Zone, Binhai High tech Zone, Nankai District, Tianjin Applicant after: Tianjin Xuner Automatic Control Equipment Manufacturing Co.,Ltd. Applicant after: NORTH CHINA MUNICIPAL ENGINEERING DESIGN & RESEARCH INSTITUTE Co.,Ltd. Address before: 300380 Virtual Park-304, No.1 Gonghua Road, Huayuan Industrial Zone, Binhai High tech Zone, Nankai District, Tianjin Applicant before: TIANJIN SURE AUTOMATION CONTROL EQUIPMENT MANUFACTURING CO.,LTD. Country or region before: China Applicant before: NORTH CHINA MUNICIPAL ENGINEERING DESIGN & RESEARCH INSTITUTE Co.,Ltd. |
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