CN203978882U - A kind of boiler centrifugal draught fan - Google Patents
A kind of boiler centrifugal draught fan Download PDFInfo
- Publication number
- CN203978882U CN203978882U CN201420401014.XU CN201420401014U CN203978882U CN 203978882 U CN203978882 U CN 203978882U CN 201420401014 U CN201420401014 U CN 201420401014U CN 203978882 U CN203978882 U CN 203978882U
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- draught fan
- induced draught
- nozzle
- belt
- frame body
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Abstract
The utility model discloses a kind of boiler centrifugal draught fan, it relates to field of boilers, the bilateral symmetry of frame body is provided with several grooves, in groove, be provided with rise-fall type supporting foot, the both sides of frame body are evenly provided with several mounting holes, induced draught fan and motor are installed on frame body, motor is connected with induced draught fan by belt, on belt, be provided with belt housing, nozzle is arranged on induced draught fan, and the head of nozzle is arranged in induced draught fan, the end of nozzle is connected with supplying high-pressure air pipe, lower end one side of induced draught fan is provided with clean window, one end of induced draught fan is provided with exhaust outlet.Its reasonable in design, beautiful shape, modern design uniqueness, simple to operate, easy to use, functional diversities, not only can solve the fouling induced draught fan vibration problem causing that comes off, but also guaranteed the safety reliability of induced draught fan, and extend the working life of induced draught fan, meet people's user demand.
Description
Technical field:
The utility model relates to a kind of boiler centrifugal draught fan, belongs to boiler technology field.
Background technique:
Boiler series is more at present, burning coal difference is larger, after installing again dusting apparatus and waste heat utilization equipment additional, thereby produce the normal operation of the not enough impact of draft, there is malleation etc. in order to overcome draft deficiency, the burner hearth that boiler causes by above-mentioned reason, thereby affect boiler burning and normal operation phenomenon, now manufactured boiler induced-draft fan, select application for user.
Boiler induced-draft fan be widely used in the oven dry of cooling and ventilation in the ventilation, dust discharge of electrical production, factory, mine, tunnel, cooling tower, vehicle, boats and ships and building and the ventilation of cooling, boiler and industrial furnace and air inducing, the apparatus of air conditioning and domestic electric appliance, cereal and select and recommend, inflation and the propelling etc. of wind-tunnel wind regime and Hovercraft.Boiler induced-draft fan is the mechanical energy that relies on motor input, improves supply gas the side by side machinery of body of gas pressure, and it is a kind of driven fluid machinery.Working principle and the turbocompressor of boiler induced-draft fan are basic identical, and just because gas flow rate is lower, pressure changes little, generally does not need to consider the variation of gas specific volume, using gas as incompressible fluid processing.Large-sized station boiler induced draught fan is generally the adjustable or variable moning blade axial flow fan of stator blade, and the lifting force that utilizes vane rotary to produce, introduces desulfurization island or chimney vertically by the flue gas in boiler.
Boiler induced-draft fan is because moving condition is more severe, the rate that breaks down is higher, particularly the vibration of induced draught fan is that a class is to the fault of producing and operation produces a very large impact, and vibration is mainly to cause due to the imbalance of impeller, impeller in use produces unbalanced reason and is mainly divided into two kinds of the fouling of impeller and the wearing and tearing of impeller, conventionally in the time that part black dirt comes off under the acting in conjunction of centrifugal force and vibration, the balance of impeller has been suffered destruction, whole induced draught fan all can produce vibration, and the method that solves Scale of blade has a variety of, wherein there is the method for water spray fouling, water spray system is contained on the casing of induced draught fan, buck is rushed in utilization can be to impeller scale removal, but it is longer that this method is shut down the time of scale removal at every turn, and scale removal is frequent, affect the normal operation of induced draught fan.The impeller long-term work of induced draught fan is in the environment that fills the air water vapor, the steam that is dissolved with urea can penetrate into the weld seam between blade and impeller body and be condensed into water, thereby cause impeller to lose dynamic balancing and static balancing, cause vibration, have a strong impact on the smooth running of induced draught fan, even damage motor, can not meet people's user demand.
Model utility content:
For the problems referred to above, the technical problems to be solved in the utility model is to provide a kind of boiler centrifugal draught fan.
A kind of boiler centrifugal draught fan of the present utility model, it comprises frame body, groove, rise-fall type supporting foot, mounting hole, induced draught fan, motor, belt, belt housing, for high-pressure air pipe, nozzle, clean window, exhaust outlet, the bilateral symmetry of frame body is provided with several grooves, in groove, be provided with rise-fall type supporting foot, the both sides of frame body are evenly provided with several mounting holes, induced draught fan and motor are installed on frame body, motor is connected with induced draught fan by belt, on belt, be provided with belt housing, nozzle is arranged on induced draught fan, and the head of nozzle is arranged in induced draught fan, the end of nozzle is connected with supplying high-pressure air pipe, lower end one side of induced draught fan is provided with clean window, one end of induced draught fan is provided with exhaust outlet.
As preferably, in described induced draught fan, be provided with impeller, on impeller, welding fluid has several blades, the outer rim of impeller is provided with two apertures corresponding to the position of weld seam, in use, even if water vapor permeation enters in weld seam and is condensed into water, under the centrifugal force that the condensed water in weld seam also can produce at impeller High Rotation Speed, throw away by two apertures, therefore can ensure that induced draught fan normally works stably.
As preferably, on described exhaust outlet, be provided with dustproof lid, can prevent that dust from entering in induced draught fan in idle situation, reduce the number of times of later stage cleaning induced draught fan inside.
The beneficial effects of the utility model: its reasonable in design, beautiful shape, modern design uniqueness, simple to operate, easy to use, functional diversities, not only can solve the fouling induced draught fan vibration problem causing that comes off, but also guaranteed the safety reliability of induced draught fan, and extend the working life of induced draught fan, meet people's user demand.
Brief description of the drawings:
For ease of explanation, the utility model is described in detail by following concrete enforcement and accompanying drawing.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of impeller in the utility model;
Fig. 3 is the A portion enlarged view of Fig. 2.
1-frame body; 2-groove; 3-rise-fall type supporting foot; 4-mounting hole; 5-induced draught fan; 5-1-impeller; 5-2-blade; 5-3-weld seam; 5-4-aperture; 6-motor; 7-belt; 8-belt housing; 9-is for high-pressure air pipe; 10-nozzle; 11-clean window; 12-exhaust outlet; The 12-1-lid that prevents dust.
Embodiment:
As shown in Figure 1-Figure 3, this embodiment is by the following technical solutions: it comprises frame body 1, groove 2, rise-fall type supporting foot 3, mounting hole 4, induced draught fan 5, motor 6, belt 7, belt housing 8, for high-pressure air pipe 9, nozzle 10, clean window 11, exhaust outlet 12, the bilateral symmetry of frame body 1 is provided with several grooves 2, in groove 2, be provided with rise-fall type supporting foot 3, the both sides of frame body 1 are evenly provided with several mounting holes 4, induced draught fan 5 and motor 6 are installed on frame body 1, motor 6 is connected with induced draught fan 5 by belt 7, on belt 7, be provided with belt housing 8, nozzle 10 is arranged on induced draught fan 5, and the head of nozzle 10 is arranged in induced draught fan 5, the end of nozzle 10 is connected with supplying high-pressure air pipe 9, lower end one side of induced draught fan 5 is provided with clean window 11, one end of induced draught fan 5 is provided with exhaust outlet 12.
Wherein, in described induced draught fan 5, be provided with impeller 5-1, the upper welding fluid of impeller 5-1 has several blades 5-2, the outer rim of impeller 5-1 is provided with two aperture 5-4 corresponding to the position of weld seam 5-3, in use, even if water vapor permeation enters in weld seam 5-3 and is condensed into water, under the centrifugal force that the condensed water in weld seam 5-3 also can produce at impeller High Rotation Speed, throw away by two aperture 5-4, therefore can ensure that induced draught fan normally works stably; On described exhaust outlet 12, be provided with dustproof lid 12-1, can prevent that dust from entering in induced draught fan in idle situation, reduced the number of times of later stage cleaning induced draught fan inside.
More than show and described basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. a boiler centrifugal draught fan, it is characterized in that: it comprises frame body (1), groove (2), rise-fall type supporting foot (3), mounting hole (4), induced draught fan (5), motor (6), belt (7), belt housing (8), for high-pressure air pipe (9), nozzle (10), clean window (11), exhaust outlet (12), the bilateral symmetry of frame body (1) is provided with several grooves (2), in groove (2), be provided with rise-fall type supporting foot (3), the both sides of frame body (1) are evenly provided with several mounting holes (4), induced draught fan (5) and motor (6) are installed on frame body (1), motor (6) is connected with induced draught fan (5) by belt (7), on belt (7), be provided with belt housing (8), nozzle (10) is arranged on induced draught fan (5), and the head of nozzle (10) is arranged in induced draught fan (5), the end of nozzle (10) is connected with supplying high-pressure air pipe (9), lower end one side of induced draught fan (5) is provided with clean window (11), one end of induced draught fan (5) is provided with exhaust outlet (12).
2. a kind of boiler centrifugal draught fan according to claim 1, it is characterized in that: in described induced draught fan (5), be provided with impeller (5-1), the upper welding fluid of impeller (5-1) has several blades (5-2), and the outer rim of impeller (5-1) is provided with two apertures (5-4) corresponding to the position of weld seam (5-3).
3. a kind of boiler centrifugal draught fan according to claim 1, is characterized in that: on described exhaust outlet (12), be provided with dustproof lid (12-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420401014.XU CN203978882U (en) | 2014-07-13 | 2014-07-13 | A kind of boiler centrifugal draught fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420401014.XU CN203978882U (en) | 2014-07-13 | 2014-07-13 | A kind of boiler centrifugal draught fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203978882U true CN203978882U (en) | 2014-12-03 |
Family
ID=51976334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420401014.XU Expired - Fee Related CN203978882U (en) | 2014-07-13 | 2014-07-13 | A kind of boiler centrifugal draught fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203978882U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106801681A (en) * | 2016-12-28 | 2017-06-06 | 江苏日升电力机械有限公司 | A kind of adjustable air-introduced machine for boiler for producing |
| CN108087343A (en) * | 2018-01-23 | 2018-05-29 | 江西力天机械有限公司 | A kind of Environmental-protection draught fan |
| CN111594467A (en) * | 2020-05-09 | 2020-08-28 | 南京玛格耐特智能科技有限公司 | Online self-ash-removing device for fan impeller |
| CN112112821A (en) * | 2020-09-07 | 2020-12-22 | 台州汇精机电有限公司 | Low-noise filtering type centrifugal fan |
-
2014
- 2014-07-13 CN CN201420401014.XU patent/CN203978882U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106801681A (en) * | 2016-12-28 | 2017-06-06 | 江苏日升电力机械有限公司 | A kind of adjustable air-introduced machine for boiler for producing |
| CN108087343A (en) * | 2018-01-23 | 2018-05-29 | 江西力天机械有限公司 | A kind of Environmental-protection draught fan |
| CN108087343B (en) * | 2018-01-23 | 2023-05-02 | 江西力天机械有限公司 | Environment-friendly induced draft fan |
| CN111594467A (en) * | 2020-05-09 | 2020-08-28 | 南京玛格耐特智能科技有限公司 | Online self-ash-removing device for fan impeller |
| CN112112821A (en) * | 2020-09-07 | 2020-12-22 | 台州汇精机电有限公司 | Low-noise filtering type centrifugal fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20150713 |
|
| EXPY | Termination of patent right or utility model |