CN210003558U - boiler induced draft fan device for large-flow three-dimensional flow impeller - Google Patents
boiler induced draft fan device for large-flow three-dimensional flow impeller Download PDFInfo
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- CN210003558U CN210003558U CN201920842007.6U CN201920842007U CN210003558U CN 210003558 U CN210003558 U CN 210003558U CN 201920842007 U CN201920842007 U CN 201920842007U CN 210003558 U CN210003558 U CN 210003558U
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- impeller
- flow
- casing
- dimensional flow
- rotor
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- 238000003466 welding Methods 0.000 claims description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 4
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 abstract description 4
- 239000003546 flue gas Substances 0.000 abstract description 4
- 239000007789 gas Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000003570 air Substances 0.000 abstract description 2
- 239000003034 coal gas Substances 0.000 abstract description 2
- 238000002485 combustion reaction Methods 0.000 abstract description 2
- 238000005245 sintering Methods 0.000 abstract description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005493 welding type Methods 0.000 description 1
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Abstract
The utility model discloses a boiler draught fan device for large-traffic three-dimensional flow impeller, including casing, rotor and base, the rotor setting is in the casing, and the impeller of rotor is three-dimensional flow unit suction impeller, and the casing setting constitutes double-bracing single-stage three-dimensional flow device on the base, the utility model is suitable for a large-scale boiler combustion system and gas delivery system, wherein gaseous medium can divide into air, coal gas, sulfur dioxide, sintering flue gas etc. relates to face , has irreplaceable economic benefits, is suitable for large-traffic, efficient, small, simple structure, unit with low costs, production cycle weak point, long service life.
Description
Technical Field
The utility model belongs to the technical field of the draught fan, concretely relates to boiler induced draft fan device for kinds of large-traffic ternary flow impellers.
Background
Draught fan/blast of boilerThe machine structure casing is mostly a plate welding part, and the rotor adopts a common impeller welding structure. The fan in the form is only suitable for the flow of 500000m3Blower below/h, and for more than 500000m3The induced draft fan/blower with flow rate more than/h has high cost because the flow rate is high and the volume of a common welding type impeller is large and the volume of a corresponding machine shell is increased; meanwhile, the common impeller has low efficiency, the small-batch production is expensive, and the modification is very difficult.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that not enough among the above-mentioned prior art is directed against, provide kinds of large-traffic three-dimensional boiler induced draft fan devices for impeller, be suitable for large-traffic, efficient, small, simple structure, unit with low costs, production cycle is short, long service life.
The utility model adopts the following technical scheme:
boiler induced draft fan device for large-flow three-dimensional flow impeller, which comprises a casing, a rotor and a base, wherein the rotor is arranged in the casing, the impeller of the rotor is a three-dimensional flow single-suction impeller with space distortion-shaped blades, the meridian plane of a cover disc of the impeller is characterized by a curve disc, the curve disc is groups of circular arc free curves, the casing is arranged on the base to form a double-support single-stage three-dimensional flow device, the casing comprises a double air inlet and an exhaust volute, the double air inlet is connected with an air inlet pipeline, the exhaust volute and an exhaust connecting pipe are connected and used for leading into a user pipe network, the outer diameter of an outlet of the air inlet is larger than the inner diameter of an impeller.
Specifically, a flow guide sleeve is arranged between a hub of the impeller and the main shaft, and the flow guide sleeve extends on the main shaft according to the trend of the profile of the hub of the impeller.
And , sealing the air inlet by a sealing ring.
Specifically, the casing and the base are connected in a welding mode.
Compared with the prior art, the utility model discloses following beneficial effect has at least:
the utility model changes the common single arc blade into the blade with space distortion; changing the conical front disc into a curved front disc; adding a flow guide sleeve to the common hub; the flow conditions in the impeller are improved, the flow efficiency is improved, and the technical effects of large flow and high efficiency are realized.
To sum up, the utility model is suitable for a large-scale boiler combustion system and gas conveying system, wherein gaseous medium can divide into air, coal gas, sulfur dioxide, sintering flue gas etc. relates to face , has irreplaceable economic benefits, is suitable for large-traffic, efficient, small, simple structure, single with low costs, production cycle is short, long service life.
The technical solution of the present invention is further described in steps by the accompanying drawings and the embodiments.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Wherein: 1. a housing; 2. a rotor; 3. a base.
Detailed Description
Referring to fig. 1, the utility model discloses a boiler draught fan device for kinds of large-traffic three-dimensional flow impellers, including casing 1, rotor 2 and base 3, rotor 2 sets up in casing 1, and casing 1 sets up and constitutes double bracing single-stage three-dimensional flow device on base 3, and casing 1 links with the admission line through two air intakes, leads to user's pipe network through exhaust spiral case and exhaust takeover.
The casing 1 is a welded structure and comprises an air inlet chamber, a volute and an air inlet.
The impeller of the rotor 2 is a single-suction impeller applying a three-dimensional flow technology, the blades are in a space distortion shape, and the noon surface of the impeller cover plate is characterized by being a curve plate; a flow guide sleeve is added between the hub and the main shaft and extends on the main shaft according to the trend of the profile of the hub of the impeller.
The outer diameter of the outlet of the air inlet is larger than the inner diameter of the impeller opening ring, the end face of the outlet of the air inlet does not extend into the impeller opening ring, the distance between the end face of the outlet of the air inlet and the end face of the impeller opening ring is 5-10 mm, and the outlet of the air inlet is sealed by the opening ring.
The utility model discloses the induced draft fan device passes through the air intake and carries boiler flue gas to the runner in, through three-dimensional flow impeller doing work, gas pressure increases, and volume flow reduces, and the temperature risees, and later flue gas is discharged through the draught fan spiral case to get into the follow-up pipe network of user.
The utility model discloses centrifugal draught fan is small, efficient, longe-lived, more ordinary dual bracing centrifugal blower. The device is simple, the operation is convenient, the maintenance is easy, the use efficiency is high, the product rotating speed is stable, the investment of the product can obtain abundant economic benefits for enterprises, and meanwhile, the industrial development of related industries is pulled, so that great social benefits are generated.
The above contents are only for explaining the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical solution according to the technical idea of the present invention all fall within the protection scope of the claims of the present invention.
Claims (4)
- The boiler induced draft fan device for the large-flow three-dimensional flow impeller is characterized by comprising a casing (1), a rotor (2) and a base (3), wherein the rotor (2) is arranged in the casing (1), the impeller of the rotor (2) is a three-dimensional flow single-suction impeller with blades in a space distortion shape, the meridian plane of a cover disc of the impeller is characterized by a curve disc, the curve disc is groups of circular arc free curves, the casing (1) is arranged on the base (3) to form a double-support single-stage three-dimensional flow device, the casing (1) comprises a double air inlet and an exhaust volute, the double air inlet is connected with an air inlet pipeline, the exhaust volute and the exhaust connecting pipe are connected and used for guiding a user pipe network, the outer diameter of an outlet of the air inlet is larger than the inner diameter of a mouth ring of the impeller.
- 2. The boiler draught fan device for the high-flow three-dimensional flow impeller as claimed in claim 1, wherein a flow guide sleeve is arranged between a hub of the impeller and the main shaft, and the flow guide sleeve extends on the main shaft according to the trend of the profile of the hub of the impeller.
- 3. The boiler draught fan device for the high-flow three-dimensional flow impeller according to claim 1, wherein a port ring seal is arranged at a connection position of the air inlet.
- 4. The boiler draught fan device for the large-flow three-dimensional flow impeller according to claim 1, wherein the casing (1) and the base (3) are connected in a welding manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920842007.6U CN210003558U (en) | 2019-06-05 | 2019-06-05 | boiler induced draft fan device for large-flow three-dimensional flow impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920842007.6U CN210003558U (en) | 2019-06-05 | 2019-06-05 | boiler induced draft fan device for large-flow three-dimensional flow impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210003558U true CN210003558U (en) | 2020-01-31 |
Family
ID=69309093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920842007.6U Active CN210003558U (en) | 2019-06-05 | 2019-06-05 | boiler induced draft fan device for large-flow three-dimensional flow impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210003558U (en) |
-
2019
- 2019-06-05 CN CN201920842007.6U patent/CN210003558U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A boiler induced draft fan device for large flow three-dimensional flow impeller Effective date of registration: 20220309 Granted publication date: 20200131 Pledgee: Xi'an Gaoling Sanyang Financing Guarantee Co.,Ltd. Pledgor: XI'AN SHENG TANG BLOWER Co.,Ltd. Registration number: Y2022610000081 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230224 Granted publication date: 20200131 Pledgee: Xi'an Gaoling Sanyang Financing Guarantee Co.,Ltd. Pledgor: XI'AN SHENG TANG BLOWER Co.,Ltd. Registration number: Y2022610000081 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A boiler induced draft fan device for large flow three-dimensional flow impeller Effective date of registration: 20230228 Granted publication date: 20200131 Pledgee: Xi'an Gaoling Sanyang Financing Guarantee Co.,Ltd. Pledgor: XI'AN SHENG TANG BLOWER Co.,Ltd. Registration number: Y2023610000124 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20200131 Pledgee: Xi'an Gaoling Sanyang Financing Guarantee Co.,Ltd. Pledgor: XI'AN SHENG TANG BLOWER Co.,Ltd. Registration number: Y2023610000124 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A Boiler Induced Draft Fan Device for High Flow Three Element Flow Impeller Granted publication date: 20200131 Pledgee: Xi'an Gaoling Sanyang Financing Guarantee Co.,Ltd. Pledgor: XI'AN SHENG TANG BLOWER Co.,Ltd. Registration number: Y2024610000043 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |