CN113669270A - Low-concentration gas pressurizing fan - Google Patents
Low-concentration gas pressurizing fan Download PDFInfo
- Publication number
- CN113669270A CN113669270A CN202111053982.7A CN202111053982A CN113669270A CN 113669270 A CN113669270 A CN 113669270A CN 202111053982 A CN202111053982 A CN 202111053982A CN 113669270 A CN113669270 A CN 113669270A
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- CN
- China
- Prior art keywords
- motor
- low
- concentration gas
- fan shell
- fan
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 47
- 241000886569 Cyprogenia stegaria Species 0.000 claims abstract description 25
- 239000000428 dust Substances 0.000 claims abstract description 19
- 230000018044 dehydration Effects 0.000 claims abstract description 11
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 230000001681 protective effect Effects 0.000 claims description 6
- 238000003795 desorption Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 238000004880 explosion Methods 0.000 description 4
- 238000000889 atomisation Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 108010085603 SFLLRNPND Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
-
- 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
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
-
- 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
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/705—Adding liquids
-
- 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
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/706—Humidity separation
Abstract
The invention discloses a low-concentration gas pressure fan, which comprises a fan shell, wherein the fan shell is of an axial structure with openings at two ends, a motor is axially arranged in the fan shell, one end of the motor is provided with a front flow guide cover protruding outwards, the other end of the motor is provided with a rear flow guide cover protruding outwards, and the shaft end of the motor is provided with a blade; a water adding pipe is arranged on the fan shell radially close to the front end of the front flow guide cover; the front air guide sleeve is arranged on one side of the blade far away from the motor; fan shell internally mounted has the dehydration dust fall grid, and installs the air-out one end of fan shell, and fan shell is inside to be close to the inboard bottom of dehydration dust fall grid and to be provided with the liquid trap that the top is open structure, simplifies the system, reduces the investment, reduces to take up an area of, reduces the working costs, effectively desorption moisture and dust when pressurized.
Description
Technical Field
The invention relates to the field of energy conservation and emission reduction of gas, in particular to a low-concentration gas pressurizing fan.
Background
The residual pressure at the outlet of the water ring vacuum pump of the gas extraction station is generally about 5kPa and is lower. If the low-concentration gas needs to be utilized, facilities such as a diffusing device, a filtering device, an explosion-proof device, a water-seal fire-retarding explosion-releasing device, a fire arrester, a dewatering device and the like are arranged in the low-concentration gas conveying process according to safety and process requirements, the pressure of the low-concentration gas from the facilities to the inlet of the low-concentration gas utilization device is very low, and the utilization of the low-concentration gas is influenced according to the running condition of the current low-concentration gas utilization project.
According to the specification of the coal mine low-concentration gas safety guarantee conveying system design specification AQ1076-2009, a wet compressor is adopted as the low-concentration gas pressurizing equipment, and if the wet compressor is adopted as the pressurizing equipment, the wet compressor needs to be built, and meanwhile, equipment such as a circulating water pump and a cooling tower needs to be matched, so that the system is complex, large in occupied area, high in manufacturing cost and high in operating cost.
On the premise of meeting the effective utilization of low-concentration gas, the low-concentration gas pressurizing fan is invented through deep research in order to simplify the system, reduce the investment, reduce the occupied land, reduce the operating cost and effectively remove the moisture and the dust.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the low-concentration gas pressurizing fan, which simplifies the system, reduces the investment, the occupied area and the operating cost, and effectively removes water and dust.
In order to solve the technical problems, the invention provides the following technical scheme: the low-concentration gas pressure fan comprises a fan shell, wherein the fan shell is of an axial two-end opening structure, a motor is axially arranged in the fan shell, one end of the motor is provided with a front flow guide cover protruding outwards, the other end of the motor is provided with a rear flow guide cover protruding outwards, and a blade is arranged at the shaft end of the motor;
a water adding pipe is arranged on the fan shell radially close to the front end of the front flow guide cover;
the front air guide sleeve is arranged on one side of the blade far away from the motor;
fan shell internally mounted has the dehydration dust fall grid, and installs the air-out one end of fan shell, fan shell is inside to be close to the inboard bottom of dehydration dust fall grid and is provided with the catch bowl that the top is open structure.
As a preferred technical scheme of the present invention, a motor protection shell is disposed between the front air guide sleeve and the rear air guide sleeve, the motor is disposed in the motor protection shell, and a smooth shell structure is formed among the front air guide sleeve, the motor protection shell and the rear air guide sleeve.
As a preferable technical scheme of the invention, the water adding pipe is set in an L-shaped structure, and the water outlet at the bottom is close to the front flow guide cover.
As a preferable technical scheme of the invention, one end of the water adding pipe close to the front fairing is provided with a water outlet.
As a preferred technical scheme of the invention, the water feeding pipe is set in a two-section structure, and a valve is connected between the two water feeding pipes.
As a preferred technical scheme of the invention, the lower end of the liquid collecting tank is provided with a blow-off pipe with a through structure.
As a preferred technical scheme of the invention, the motor comprises and is not limited to a high-speed explosion-proof motor.
Compared with the prior art, the invention can achieve the following beneficial effects:
1. the low-concentration gas pressurizing fan can be directly connected with a gas pipeline, and construction and installation are simple.
2. And a wet type pressurization machine room is not required to be built, so that the occupied area is reduced, and the investment is reduced.
3. The system is simple and convenient to maintain and manage without matching with facilities such as a circulating water pump, a cooling tower and the like.
4. The power consumption equipment is few, and distribution power is little, reduces the working costs.
5. The rear part is provided with a dehydration dust fall grid, so that the water and dust in the low-concentration gas can be effectively removed, and the service life of the low-concentration gas utilization device is prolonged.
6. The research and development of the low-concentration gas pressurizing fan expand the effective utilization range of the low-concentration gas and create favorable conditions for the reasonable utilization of the low-concentration gas.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1 according to the present invention;
fig. 3 is an enlarged schematic view of the structure at B in fig. 1 according to the present invention.
Wherein: 1. a fan housing; 2. a water feeding pipe; 21. a valve; 22. a water outlet; 3. a front air deflector; 4. a blade; 5. a motor; 6. a motor protection shell; 7. a rear dome; 8. dewatering and dust settling grids; 9. a liquid collecting tank; 91. a sewage discharge pipe.
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.
Example (b):
as shown in fig. 1-3, the present invention provides a low concentration gas pressure fan, which comprises a fan housing 1, wherein the fan housing 1 has an axial structure with openings at two ends, a motor 5 is axially installed inside the fan housing 1, a front fairing 3 protruding outwards is installed at one end of the motor 5, a rear fairing 7 protruding outwards is installed at the other end of the motor 5, and a blade 4 is installed at the shaft end of the motor 5; a water adding pipe 2 is arranged at the front end of the fan shell 1 which is radially close to the front fairing 3; the front air deflector 3 is arranged on one side of the blade 4 far away from the motor 5; fan shell 1 internally mounted has dehydration dust fall grid 8, and installs fan shell 1's air-out one end, and fan shell 1 is inside to be close to dehydration dust fall grid 8 inboard bottom and is provided with the liquid trap 9 that the top is open structure.
When the gas explosion-proof device is used, the motor 5 is isolated from low-concentration gas within an explosion limit range, so that explosion caused by direct contact of the low-concentration gas and the motor 5 is avoided; the water is rapidly atomized under the combined action of negative pressure difference of about 3kPa and high-speed airflow speed of about 15m/s generally by leading the water feeding pipe 2 arranged right ahead of the front fairing 3 and leading the water feeding pipe 2 to feed water, and the fine water mist is attached to the surface of the blade 4 to form a water film, so that the surface of the fan blade 4 is prevented from being charged with static electricity, and the blade 4 is ensured not to be charged with static electricity and generate sparks; meanwhile, the front air guide sleeve 3 and the rear air guide sleeve 7 are arranged to avoid the occurrence of a vortex area, reduce the resistance of air flow and improve the efficiency of the fan; a two-stage high-rotation-speed motor is adopted, so that the gas conveying pressure is improved, and the guarantee is provided for long-distance conveying of low-concentration gas;
when water after the atomizing reachs dehydration dust fall grid 8, dehydration dust fall grid 8 with high-speed water smoke and dust and the grid collision in the low concentration gas that flows, separate out water and dust, the drop of water of the great granule of condensing falls to 9 departments of collecting tank and discharges naturally, greatly reduced gets into the moisture of low concentration gas utilization device, improves combustion efficiency, reduces the dust and gets into metal fiber and weave the combustor, is favorable to improving the life-span of combustor.
In other embodiments, a motor protective shell 6 is arranged between the front air guide sleeve 3 and the rear air guide sleeve 7, the motor 5 is arranged in the motor protective shell 6, a smooth shell structure is formed between the front air guide sleeve 3, the motor protective shell 6 and the rear air guide sleeve 7, airflow resistance is reduced, fan efficiency is improved, and meanwhile a protection effect is achieved on the motor 5.
In other embodiments, the water feeding pipe 2 is set in an "L" structure, and the bottom water outlet is close to the front of the front flow guiding cover 3, so that after the water feeding pipe 2 is filled with water, the liquid can be uniformly atomized to spray on the blades 4.
In other embodiments, the end of the water feeding pipe 2 close to the front fairing 3 is provided with the water outlet 22, which effectively improves the atomization effect of the water outlet end of the water feeding pipe 2.
In other embodiments, the water feeding pipes 2 are set to be of a two-section structure, a valve 21 is connected between the two water feeding pipes 2, the water yield of the water feeding pipes 2 is controlled through the valve 21, and then the atomization effect of the blades 4 on water is adjusted when the motor 5 runs.
In other embodiments, a drain pipe 91 having a through structure is installed at the lower end of the sump 9 to intensively drain the collected liquid in the sump 9.
In other embodiments, the motor 5 includes and is not limited to a high-speed explosion-proof motor, so as to avoid explosion caused by direct contact between low-concentration gas and the motor 5, and to enable water to be rapidly atomized under the action of high-speed airflow of the high-speed motor.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The foregoing shows and describes the general principles, essential features, and advantages of the 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 preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. Low concentration gas forced draught fan, including fan shell (1), its characterized in that: the fan shell (1) is of an axial two-end opening structure, a motor (5) is axially installed inside the fan shell (1), one end of the motor (5) is provided with a front flow guide cover (3) protruding outwards, the other end of the motor (5) is provided with a rear flow guide cover (7) protruding outwards, and a blade (4) is installed at the shaft end of the motor (5);
a water adding pipe (2) is arranged on the fan shell (1) and is radially close to the front end of the front fairing (3);
the front air deflector (3) is arranged on one side of the blade (4) far away from the motor (5);
fan shell (1) internally mounted has dehydration dust fall grid (8), and installs the air-out one end of fan shell (1), fan shell (1) is inside to be close to dehydration dust fall grid (8) inboard bottom and is provided with liquid trap (9) that the top is open structure.
2. The low-concentration gas forced draft fan according to claim 1, wherein: be provided with motor protective housing (6) between preceding kuppe (3) and back kuppe (7), motor protective housing (6) are arranged in motor (5), form a smooth shell structure between preceding kuppe (3), motor protective housing (6) and back kuppe (7).
3. The low-concentration gas forced draft fan according to claim 1, wherein: the water adding pipe (2) is set in an L-shaped structure, and a water outlet at the bottom is close to the front of the front flow guiding cover (3).
4. The low-concentration gas forced draft fan according to claim 1, wherein: and a water outlet (22) is formed in one end, close to the front flow guiding cover (3), of the water adding pipe (2).
5. The low-concentration gas forced draft fan according to claim 1, wherein: the water feeding pipes (2) are set in a two-section structure, and a valve (21) is connected between the two water feeding pipes (2).
6. The low-concentration gas forced draft fan according to claim 1, wherein: and a drain pipe (91) with a through structure is arranged at the lower end of the liquid collecting tank (9).
7. The low-concentration gas forced draft fan according to claim 1, wherein: the motor (5) comprises and is not limited to a high-speed explosion-proof motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111053982.7A CN113669270A (en) | 2021-09-09 | 2021-09-09 | Low-concentration gas pressurizing fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111053982.7A CN113669270A (en) | 2021-09-09 | 2021-09-09 | Low-concentration gas pressurizing fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113669270A true CN113669270A (en) | 2021-11-19 |
Family
ID=78549066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111053982.7A Pending CN113669270A (en) | 2021-09-09 | 2021-09-09 | Low-concentration gas pressurizing fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113669270A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101446377A (en) * | 2008-09-05 | 2009-06-03 | 广东宏陶陶瓷有限公司 | Seal water system of gas compressor |
| CN101498304A (en) * | 2009-03-11 | 2009-08-05 | 宁波鲍斯压缩机有限公司 | Coal bed gas double screw rod compressor unit |
| CN203130609U (en) * | 2012-12-28 | 2013-08-14 | 上海宝钢工业技术服务有限公司 | Gas booster fan |
| CN203540279U (en) * | 2013-11-25 | 2014-04-16 | 重庆梅安森科技股份有限公司 | Turbo type mining wet dust collector |
| CN205055741U (en) * | 2015-11-03 | 2016-03-02 | 华北理工大学 | Explosion -proof dust collector of mining water jet |
| US20180166941A1 (en) * | 2016-12-09 | 2018-06-14 | Asia Vital Components Co., Ltd. | Protective structure of stator and fan using the same |
| CN207701400U (en) * | 2017-12-22 | 2018-08-07 | 江苏全风环保科技有限公司 | Explosion-proof type Middle pressure draught fan |
| JP2018131974A (en) * | 2017-02-15 | 2018-08-23 | ファナック株式会社 | Fan unit, method of manufacturing the same, and motor drive device |
| CN209324696U (en) * | 2018-11-24 | 2019-08-30 | 宁波易泰电器制造有限公司 | Circulation fan |
| CN112360769A (en) * | 2020-12-01 | 2021-02-12 | 娄加建 | Special gas compressing device for gas power generation |
| CN112780587A (en) * | 2019-11-08 | 2021-05-11 | 青岛海尔智能技术研发有限公司 | Gas booster and gas equipment |
-
2021
- 2021-09-09 CN CN202111053982.7A patent/CN113669270A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101446377A (en) * | 2008-09-05 | 2009-06-03 | 广东宏陶陶瓷有限公司 | Seal water system of gas compressor |
| CN101498304A (en) * | 2009-03-11 | 2009-08-05 | 宁波鲍斯压缩机有限公司 | Coal bed gas double screw rod compressor unit |
| CN203130609U (en) * | 2012-12-28 | 2013-08-14 | 上海宝钢工业技术服务有限公司 | Gas booster fan |
| CN203540279U (en) * | 2013-11-25 | 2014-04-16 | 重庆梅安森科技股份有限公司 | Turbo type mining wet dust collector |
| CN205055741U (en) * | 2015-11-03 | 2016-03-02 | 华北理工大学 | Explosion -proof dust collector of mining water jet |
| US20180166941A1 (en) * | 2016-12-09 | 2018-06-14 | Asia Vital Components Co., Ltd. | Protective structure of stator and fan using the same |
| JP2018131974A (en) * | 2017-02-15 | 2018-08-23 | ファナック株式会社 | Fan unit, method of manufacturing the same, and motor drive device |
| CN207701400U (en) * | 2017-12-22 | 2018-08-07 | 江苏全风环保科技有限公司 | Explosion-proof type Middle pressure draught fan |
| CN209324696U (en) * | 2018-11-24 | 2019-08-30 | 宁波易泰电器制造有限公司 | Circulation fan |
| CN112780587A (en) * | 2019-11-08 | 2021-05-11 | 青岛海尔智能技术研发有限公司 | Gas booster and gas equipment |
| CN112360769A (en) * | 2020-12-01 | 2021-02-12 | 娄加建 | Special gas compressing device for gas power generation |
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