CN205136078U - Boiler centrifugal induced draft fan - Google Patents
Boiler centrifugal induced draft fan Download PDFInfo
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- CN205136078U CN205136078U CN201520925864.4U CN201520925864U CN205136078U CN 205136078 U CN205136078 U CN 205136078U CN 201520925864 U CN201520925864 U CN 201520925864U CN 205136078 U CN205136078 U CN 205136078U
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- fan
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- fan main
- motor
- draught fan
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Abstract
The utility model provides a boiler centrifugal induced draft fan, includes frame, fan main part and motor, fan main part and motor are fixed on the frame, the motor provides power through the belt pulley for the fan main part, be provided with air intake and air outlet in the fan main part respectively, its characterized in that: the inside dirt filtrating screen that absorbs water that is provided with of air intake. The utility model discloses at the fan air intake department installation dirt filtrating screen that absorbs water, stop at the fan outsidely through dust, aqueous vapor, avoided the emergence of the unstable circumstances of fan work that scale deposit, aqueous vapor led to the fact, also lengthened the working life of fan.
Description
Technical field
The utility model relates to blower fan and manufactures field, is specifically related to a kind of boiler centrifugal draught fan.
Background technique
Boiler induced-draft fan due to moving condition more severe, the rate that breaks down is higher, particularly the vibration of induced draught fan is that a class is to producing and running the fault produced a very large impact, and vibration mainly causes due to the imbalance of impeller, impeller in use produces unbalanced reason and is mainly divided into the fouling of impeller and the wearing and tearing two kinds of impeller, usually when coming off under the acting in conjunction of part black dirt in centrifugal force and vibration, the balance of impeller has suffered destruction, whole induced draught fan all can produce vibration, and the method solving 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, utilize ash flushing water can to impeller scale removal, but the time that this method shuts down scale removal is longer at every turn, and scale removal is frequent, have impact on the normal operation of induced draught fan.The impeller long-term work of induced draught fan is in the environment filling the air water vapor, the steam being dissolved with urea can penetrate into the weld seam between blade and impeller body and be condensed into water, thus 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 the user demand of people.
Chinese patent Authorization Notice No. CN203978882U, authorized announcement date is that the model utility on December 3rd, 2014 discloses a kind of boiler centrifugal draught fan, the bilateral symmetry of frame body is provided with several groove, rise-fall type supporting foot is provided with in groove, the both sides of frame body are evenly provided with several mounting hole, frame body is provided with induced draught fan and motor, motor is connected with induced draught fan by belt, belt is 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 for high-pressure air pipe, the side, lower end of induced draught fan is provided with clean window, one end of induced draught fan is provided with exhaust outlet.
The stain be attached on impeller washes out by the pressurized gas that this model utility is sprayed by high-pressure air pipe, condensed water is avoided to adhere to by the aperture be arranged on impeller, solve fouling to come off the induced draught fan vibration problem caused, but also ensure that the safety reliability of induced draught fan, extend the working life of induced draught fan.But also just when the remedial efforts that dust, aqueous vapor are done after entering induced draught fan inside, cure the symptoms, not the disease, still can affect to the stable operation of induced draught fan.
Summary of the invention
The purpose of this utility model is the shortcoming and defect overcoming prior art, provides a kind of structure simple, can effectively stop dust, boiler centrifugal draught fan that aqueous vapor enters.
For realizing above object, technical solution of the present utility model is: a kind of boiler centrifugal draught fan, comprise support, fan main body and motor, described fan main body and motor are fixed on support, described motor by belt pulley for fan main body provides power, described fan main body is respectively arranged with intake grill and exhaust outlet, it is characterized in that: described intake grill inside is provided with water suction dust filter net.
Described exhaust outlet is provided with dust cover.
Described water suction dust filter net is fixed by snap on the inwall of intake grill.
The outer wall of described fan main body is provided with vacuum pressure sensor, and the end of probe of described vacuum pressure sensor stretches into the inside of fan main body.
Compared with prior art, the beneficial effects of the utility model are:
1, the utility model installs water suction dust filter net at air inlet place, is blocked in blower fan outside, avoids fouling, the generation of blower fan job insecurity situation that aqueous vapor causes through dust, aqueous vapor, also extends the operating life of blower fan.
2, the water suction dust filter net in the utility model uses buckle to be fixed on intake grill inwall, no matter is install or dismantle all very convenient.
3, the vacuum pressure sensor in the utility model can pressure change in Real-Time Monitoring fan main body, so that water suction dust filter net can find and change after being stuck with paste completely by dirt within the shortest time.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: support 1, fan main body 2, motor 3, belt pulley 4, intake grill 5, exhaust outlet 6, water suction dust filter net 7, dust cover 8, buckle 9, vacuum pressure sensor 10.
Embodiment
Illustrate below in conjunction with accompanying drawing and with embodiment, the utility model to be described in further detail.
See Fig. 1, a kind of boiler centrifugal draught fan, comprise support 1, fan main body 2 and motor 3, described fan main body 2 and motor 3 are fixed on support 1, described motor 3 by belt pulley 4 for fan main body 2 provides power, described fan main body 2 is respectively arranged with intake grill 5 and exhaust outlet 6, described intake grill 5 inside is provided with buckle 9 and is fixed on water suction dust filter net 7 on the inwall of intake grill 5, and described exhaust outlet 6 is provided with dust cover 8.
The outer wall of described fan main body 2 is provided with vacuum pressure sensor 10, and the end of probe of described vacuum pressure sensor 10 stretches into the inside of fan main body 2.
Working procedure of the present utility model is: first, open the dust cover 8 covered on exhaust outlet 6, then starting electrical machinery 3, motor 3 drives the wheel rotation of fan main body 2 inside by belt pulley 4, wheel rotation forms negative pressure, under the effect of the pressure, air can through the water suction dust filter net 7 at intake grill 5 place filter laggard enter fan main body 2, finally go out from exhaust outlet 6.
After induced draught fan uses the long period, the stain that water suction dust filter net 7 may be attached to its surface is stuck with paste, cause air cannot enter fan main body 2, but the impeller now in fan main body 2 is also in work, time one is long, and the pneumatics in fan main body 2 will change, when vacuum pressure sensor 10 detects this change, will report to the police to operator, remind staff's disassembly, cleaning water suction dust filter net 7.
Claims (4)
1. a boiler centrifugal draught fan, comprise support (1), fan main body (2) and motor (3), described fan main body (2) and motor (3) are fixed on support (1), described motor (3) by belt pulley (4) for fan main body (2) provides power, described fan main body (2) is respectively arranged with intake grill (5) and exhaust outlet (6), it is characterized in that: described intake grill (5) inside is provided with water suction dust filter net (7).
2. a kind of boiler centrifugal draught fan according to claim 1, is characterized in that: described exhaust outlet (6) is provided with dust cover (8).
3. a kind of boiler centrifugal draught fan according to claim 1, is characterized in that: described water suction dust filter net (7) is fixed on the inwall of intake grill (5) by buckle (9).
4. a kind of boiler centrifugal draught fan according to claim 1, it is characterized in that: the outer wall of described fan main body (2) is provided with vacuum pressure sensor (10), the end of probe of described vacuum pressure sensor (10) stretches into the inside of fan main body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520925864.4U CN205136078U (en) | 2015-11-19 | 2015-11-19 | Boiler centrifugal induced draft fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520925864.4U CN205136078U (en) | 2015-11-19 | 2015-11-19 | Boiler centrifugal induced draft fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205136078U true CN205136078U (en) | 2016-04-06 |
Family
ID=55621877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520925864.4U Active CN205136078U (en) | 2015-11-19 | 2015-11-19 | Boiler centrifugal induced draft fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205136078U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106262977A (en) * | 2016-08-10 | 2017-01-04 | 江苏杰英能源科技有限公司 | Air-introduced machine processing means in a kind of dewatering vegetable equipment |
-
2015
- 2015-11-19 CN CN201520925864.4U patent/CN205136078U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106262977A (en) * | 2016-08-10 | 2017-01-04 | 江苏杰英能源科技有限公司 | Air-introduced machine processing means in a kind of dewatering vegetable equipment |
| CN106262977B (en) * | 2016-08-10 | 2018-07-13 | 安徽皖东农业科技有限公司 | Air-introduced machine processing unit in a kind of dewatering vegetable equipment |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |