CN108916103B - Three-in-one outlet emptying structure of blower - Google Patents
Three-in-one outlet emptying structure of blower Download PDFInfo
- Publication number
- CN108916103B CN108916103B CN201811000998.XA CN201811000998A CN108916103B CN 108916103 B CN108916103 B CN 108916103B CN 201811000998 A CN201811000998 A CN 201811000998A CN 108916103 B CN108916103 B CN 108916103B
- Authority
- CN
- China
- Prior art keywords
- chamber
- vent valve
- bypass
- outlet
- outlet pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000009434 installation Methods 0.000 claims abstract description 8
- 239000012528 membrane Substances 0.000 claims description 15
- 238000013022 venting Methods 0.000 description 11
- 230000004323 axial length Effects 0.000 description 2
- 230000030279 gene silencing Effects 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/02—Surge control
- F04D27/0207—Surge control by bleeding, bypassing or recycling fluids
- F04D27/0215—Arrangements therefor, e.g. bleed or by-pass valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses a three-in-one outlet emptying structure of a blower, wherein a mixed flow plate is arranged in a mounting shell, the mixed flow plate divides the mounting shell into a bypass chamber and an emptying valve chamber which are communicated with each other, an emptying valve outlet is arranged at the bottom of the emptying valve chamber, an emptying valve diaphragm is fixed in the emptying valve chamber through an emptying valve cover, and the emptying valve diaphragm is abutted against the emptying valve outlet; the installation shell is provided with an outlet pipe flange, the outlet pipe flange penetrates through the bypass chamber, the outlet pipe flange is provided with a plurality of bypass openings, the bypass openings are arranged in the bypass chamber, and the outlet pipe flange is communicated with the bypass chamber through the bypass openings. The invention greatly reduces the longitudinal height of the cabinet, the transverse length of the air vent valve assembly, and the mixed flow plate in the shell can avoid the possibility of incorrect opening of the air vent valve, thereby greatly reducing the air vent noise of the fan.
Description
Technical field:
the invention relates to a three-in-one outlet emptying structure of a blower.
The background technology is as follows:
centrifugal blower outlets often require the installation of a purge valve to prevent impeller surge when the blower is started, or the exhaust duct is plugged. However, when the fan is empty, the fan can generate great noise, often can exceed 100 decibels, and the fan has serious influence on the environment and personnel health. For this purpose, it is necessary to put the vent valve into the fan case for silencing.
However, placing the vent valve in the cabinet occupies a large space, resulting in a waste of cabinet space, an increased profile, and an increased cost.
Taking a certain fan of my company as an example:
when the emptying valve is arranged externally, the outlet of the volute is directly connected with the outlet pipe fitting, and the distance between the outlet of the volute and the flange of the outlet pipe is only 200mm; when the vent valve is arranged in, the distance between the outlet of the volute and the flange of the outlet pipe is increased to 550mm due to the addition of accessories such as the vent valve, a tee joint and the like and corresponding pipeline connecting pieces. At the same time, the vent valve is connected to the tee by a pipe flange, and the length of the tee branch pipe is 150mm, and the distance from the center line of the vent valve to the flange pipe is 250mm, so that the space which is close to 800mm is required to be occupied transversely.
Only this variation increases the cabinet height by 300mm and the cabinet length by 250mm. This is also the result after the space occupation has been reduced by the interpenetration of the parts. While this added volume is practically useless, it is a great waste of cabinet design.
The invention comprises the following steps:
the invention provides a three-in-one outlet emptying structure of a blower for solving the problems in the prior art.
The invention adopts the technical scheme that: the three-in-one outlet emptying structure of the blower comprises an emptying valve cover, an emptying valve membrane and a mounting shell, wherein a mixed flow plate is arranged in the mounting shell and divides the mounting shell into a bypass chamber and an emptying valve chamber which are mutually communicated, an emptying valve outlet is arranged at the bottom of the emptying valve chamber, the emptying valve membrane is fixed in the emptying valve chamber through the emptying valve cover, and the emptying valve membrane is abutted against the emptying valve outlet;
the installation shell is provided with an outlet pipe flange, the outlet pipe flange penetrates through the bypass chamber, the outlet pipe flange is provided with a plurality of bypass openings, the bypass openings are arranged in the bypass chamber, and the outlet pipe flange is communicated with the bypass chamber through the bypass openings.
Further, the outlet pipe flange and the installation shell are integrally formed, and the axis direction of the outlet pipe flange is parallel to the axis direction of the outlet of the emptying valve.
Further, the bypass chamber and the vent valve chamber are rectangular, the lower end face of the bypass chamber is flush with the lower end face of the vent valve chamber, and the upper end face of the bypass chamber is higher than the upper end face of the vent valve chamber.
The invention has the following beneficial effects:
1) The longitudinal height of the cabinet is greatly reduced:
the three-in-one vent valve structure omits a three-way pipe, and the outlet pipe and the vent valve are arranged in parallel, so that the axial length of the vent valve assembly is greatly shortened. Therefore, the air release valve can be arranged in the cabinet, the height of the cabinet is not changed, and space is not wasted.
In the example described in the background art, the axial length of the pipeline can be shortened from 550mm to 200mm, and the height of the cabinet is not required to be increased as in the simple outlet pipe fitting.
2) The lateral length of the vent valve assembly is also greatly reduced:
the three-in-one vent valve structure omits a branch pipe flange connection structure between the tee joint and the vent valve, and the vent valve is directly connected with the bypass chamber body through the square shell, so that the transverse length of the vent valve assembly is greatly shortened. Therefore, the air release valve can be arranged in the cabinet, the size of the cabinet is not changed, and space is not wasted.
In the example described in the background, the lateral length of the vent valve assembly can be shortened from about 800mm to 400mm, and only proper spatial arrangement is needed, without increasing the size of the cabinet.
3) The mixed flow plate in the shell can avoid the possibility of false opening of the emptying valve:
the mixed flow plate can prevent high-speed air flow in the outlet pipe from directly impacting the vent valve membrane made of rubber materials, and avoid the vent valve from being opened by mistake due to the fact that the membrane is blown up by the air flow.
4) The emptying noise of the fan is greatly reduced:
the three-in-one vent valve disclosed by the invention can return and discharge the vent air flow into the cabinet, and can reduce the vent noise of the fan by means of the sound insulation and silencing structure of the cabinet. Therefore, the emptying noise of the fan can be greatly reduced.
Description of the drawings:
fig. 1 is a structural diagram of the present invention.
The specific embodiment is as follows:
the invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, the invention discloses a three-in-one outlet venting structure of a blower, which comprises a mounting shell 1, a venting valve cover 21 and a venting valve membrane 22, wherein a mixed flow plate 11 is arranged in the mounting shell 1, the mixed flow plate 11 divides the mounting shell 1 into a bypass chamber 12 and a venting valve chamber 13 which are communicated with each other, a venting valve outlet 23 is arranged at the bottom of the venting valve chamber 13, the venting valve membrane 22 is fixed in the venting valve chamber 13 through the venting valve cover 21, and the venting valve membrane 22 is abutted against the venting valve outlet 23. The installation shell 1 is provided with an outlet pipe flange 3, the outlet pipe flange 3 penetrates through the bypass chamber 12, the outlet pipe flange 3 is provided with a plurality of bypass openings 31, the bypass openings 31 are arranged in the bypass chamber 12, and the outlet pipe flange 3 is communicated with the bypass chamber 12 through the bypass openings 31.
The invention also doubles the vent valve chamber 13 as a vent valve housing.
The installation modes of the vent valve membrane 22 and the vent valve membrane 22 in the invention are the same as the existing structure, so the invention does not describe the installation structure of the vent valve membrane 22 in the vent valve chamber 13 in detail.
The outlet pipe flange 3 is integrally formed with the mounting housing 1, and the axial direction of the outlet pipe flange 3 is parallel to the axial direction of the vent valve outlet 23.
The bypass chamber 12 and the vent valve chamber 13 are rectangular, and the lower end surface of the bypass chamber 12 is flush with the lower end surface of the vent valve chamber 13, and the upper end surface of the bypass chamber 12 is higher than the upper end surface of the vent valve chamber 13.
The outlet flange pipe 3 and the vent valve are mounted in the same sealed square box-shaped housing, with the outlet pipe inlet of the outlet flange pipe 3 being juxtaposed with the vent valve outlet 23 of the vent valve, facing the same side of the housing (inside the cabinet).
The working principle of the invention is as follows:
1) The pressure gas in the outlet flange pipe 3 can freely enter the bypass chamber 12 through the bypass port 31;
2) The air flow in the bypass chamber 12 can bypass the mixing plate 11 and freely enter the vent valve chamber 13;
3) The mixing plate 11 can prevent the high-speed air flow from directly impacting the vent valve membrane 22;
4) When the emptying valve membrane 22 is lifted under the control of the outside (the structural principle is completely the same as that of a common pneumatic emptying valve), the air flow in the emptying valve chamber can be discharged from the emptying valve outlet 23 under the pressure effect;
5) The air discharge flow is discharged to the inside of the cabinet, and the air discharge noise can be greatly reduced after being silenced by the cabinet structure.
The foregoing is merely a preferred embodiment of the invention, and it should be noted that modifications could be made by those skilled in the art without departing from the principles of the invention, which modifications would also be considered to be within the scope of the invention.
Claims (3)
1. The utility model provides a three-in-one export blow-down structure of air-blower, includes blow-down valve gap (21) and blow-down valve diaphragm (22), its characterized in that:
the device comprises a mounting shell (1), and is characterized in that a mixed flow plate (11) is arranged in the mounting shell (1), the mixed flow plate (11) divides the mounting shell (1) into a bypass chamber (12) and a vent valve chamber (13) which are communicated with each other, a vent valve outlet (23) is arranged at the bottom of the vent valve chamber (13), a vent valve membrane (22) is fixed in the vent valve chamber (13) through a vent valve cover (21), and the vent valve membrane (22) is abutted against the vent valve outlet (23);
the installation casing (1) is provided with an outlet pipe flange (3), the outlet pipe flange (3) penetrates through the bypass chamber (12), the outlet pipe flange (3) is provided with a plurality of bypass openings (31), the bypass openings (31) are arranged in the bypass chamber (12), and the outlet pipe flange (3) is communicated with the bypass chamber (12) through the bypass openings (31).
2. The three-in-one outlet vent structure of a blower of claim 1, wherein: the outlet pipe flange (3) and the mounting shell (1) are integrally formed, and the axis direction of the outlet pipe flange (3) is parallel to the axis direction of the vent valve outlet (23).
3. The three-in-one outlet vent structure of a blower of claim 1, wherein: the bypass chamber (12) and the vent valve chamber (13) are rectangular, the lower end face of the bypass chamber (12) is flush with the lower end face of the vent valve chamber (13), and the upper end face of the bypass chamber (12) is higher than the upper end face of the vent valve chamber (13).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811000998.XA CN108916103B (en) | 2018-08-30 | 2018-08-30 | Three-in-one outlet emptying structure of blower |
| PCT/CN2019/102521 WO2020043050A1 (en) | 2018-08-30 | 2019-08-26 | Three-in-one outlet vent structure for blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811000998.XA CN108916103B (en) | 2018-08-30 | 2018-08-30 | Three-in-one outlet emptying structure of blower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108916103A CN108916103A (en) | 2018-11-30 |
| CN108916103B true CN108916103B (en) | 2024-03-12 |
Family
ID=64406243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811000998.XA Active CN108916103B (en) | 2018-08-30 | 2018-08-30 | Three-in-one outlet emptying structure of blower |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108916103B (en) |
| WO (1) | WO2020043050A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916103B (en) * | 2018-08-30 | 2024-03-12 | 南京磁谷科技有限公司 | Three-in-one outlet emptying structure of blower |
Citations (8)
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|---|---|---|---|---|
| GB893086A (en) * | 1957-06-11 | 1962-04-04 | Garrett Corp | Surge control device for centrifugal compressors |
| CN202215498U (en) * | 2011-08-30 | 2012-05-09 | 南京磁谷科技有限公司 | Low-pressure large-flow vent valve device |
| CN203035620U (en) * | 2012-12-04 | 2013-07-03 | 上海汽车集团股份有限公司 | Compressor of noise reduction compressor |
| CN203962482U (en) * | 2014-05-15 | 2014-11-26 | 苏州维益流体科技有限公司 | A kind of fan casing structure with bypass type pipeline |
| CN205956044U (en) * | 2016-07-28 | 2017-02-15 | 中国石油化工股份有限公司 | Anti -surge valve gas circuit |
| CN206539524U (en) * | 2017-01-16 | 2017-10-03 | 湖南航翔燃气轮机有限公司 | Cfentrifugal blower atmospheric valve |
| CN108035905A (en) * | 2018-01-08 | 2018-05-15 | 长兴埃克森科技有限公司 | A kind of automatic frequency-conversion control system for preventing wind turbine surge |
| CN208816387U (en) * | 2018-08-30 | 2019-05-03 | 南京磁谷科技有限公司 | A kind of three-in-one outlet emptying structure of air blower |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4881870A (en) * | 1988-11-15 | 1989-11-21 | Alopex Industries, Inc. | Air blower safety control |
| US8307943B2 (en) * | 2010-07-29 | 2012-11-13 | General Electric Company | High pressure drop muffling system |
| CN102434485A (en) * | 2011-11-23 | 2012-05-02 | 莱芜钢铁股份有限公司 | Sealing air pipeline system and using method of compressor |
| CN105757279B (en) * | 2016-05-05 | 2018-05-29 | 南京磁谷科技有限公司 | A kind of magnetic suspension air blower two-stage guide's blow valve |
| CN108916103B (en) * | 2018-08-30 | 2024-03-12 | 南京磁谷科技有限公司 | Three-in-one outlet emptying structure of blower |
-
2018
- 2018-08-30 CN CN201811000998.XA patent/CN108916103B/en active Active
-
2019
- 2019-08-26 WO PCT/CN2019/102521 patent/WO2020043050A1/en active Application Filing
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB893086A (en) * | 1957-06-11 | 1962-04-04 | Garrett Corp | Surge control device for centrifugal compressors |
| CN202215498U (en) * | 2011-08-30 | 2012-05-09 | 南京磁谷科技有限公司 | Low-pressure large-flow vent valve device |
| CN203035620U (en) * | 2012-12-04 | 2013-07-03 | 上海汽车集团股份有限公司 | Compressor of noise reduction compressor |
| CN203962482U (en) * | 2014-05-15 | 2014-11-26 | 苏州维益流体科技有限公司 | A kind of fan casing structure with bypass type pipeline |
| CN205956044U (en) * | 2016-07-28 | 2017-02-15 | 中国石油化工股份有限公司 | Anti -surge valve gas circuit |
| CN206539524U (en) * | 2017-01-16 | 2017-10-03 | 湖南航翔燃气轮机有限公司 | Cfentrifugal blower atmospheric valve |
| CN108035905A (en) * | 2018-01-08 | 2018-05-15 | 长兴埃克森科技有限公司 | A kind of automatic frequency-conversion control system for preventing wind turbine surge |
| CN208816387U (en) * | 2018-08-30 | 2019-05-03 | 南京磁谷科技有限公司 | A kind of three-in-one outlet emptying structure of air blower |
Non-Patent Citations (1)
| Title |
|---|
| 循环风机出口放空管道的布置及优化设计;杨蕾;徐志有;许洋;;氮肥与合成气(12);第25-27页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020043050A1 (en) | 2020-03-05 |
| CN108916103A (en) | 2018-11-30 |
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| CP03 | Change of name, title or address |
Address after: 211102 No. 100 Jiuzhu Road, Jiangning Development Zone, Nanjing, Jiangsu Province Patentee after: Nanjing Cigu Technology Co.,Ltd. Country or region after: Zhong Guo Address before: 211102 No. 100 Jiuzhu Road, Jiangning Development Zone, Nanjing, Jiangsu Province Patentee before: NANJING CIGU Ltd.,Corp. Country or region before: Zhong Guo |
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| CP03 | Change of name, title or address |