CN201141611Y - Positive sealing and fixing type steam ash blower - Google Patents
Positive sealing and fixing type steam ash blower Download PDFInfo
- Publication number
- CN201141611Y CN201141611Y CNU2007200745344U CN200720074534U CN201141611Y CN 201141611 Y CN201141611 Y CN 201141611Y CN U2007200745344 U CNU2007200745344 U CN U2007200745344U CN 200720074534 U CN200720074534 U CN 200720074534U CN 201141611 Y CN201141611 Y CN 201141611Y
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- positive pressure
- compressed air
- steam
- plemum
- soot blower
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Abstract
The utility model discloses a positive pressure sealing and fixing type steam soot blower, which comprises a machine frame, a valve, a valve opening mechanism, a motor, transmission device, a soot blowing steam intake pipe, a hollow shaft, a soot blowing pipe and a positive pressure room. The positive pressure room is a sealed cavity body, one end of the positive pressure room is fixedly connected with the end plate of the machine frame, and the other end of the positive pressure room is fixedly connected with a boiler wall. The compressed air inlet opening is arranged on the side wall of the positive pressure room of the steam soot blower, and the positive pressure room is sealed by adopting a packing box, to send the compressed air above the smoke pressure of furnace body to the positive pressure room, to ensure the smoke in the furnace body is not leaked into the atmosphere, and to prevent the problem that the steam soot blower is eroded or blocked because the flue gas flows back. Compressed air inlet opening is arranged on the side surface of the valve of the steam soot blower, the compressed air can be inducted after the blowing process is finished, and the corrosive high temperature smoke in the furnace body can be prevented from breaking into the valve body via the soot blowing pipe, therefore to extend the service life of the valve body. The steam soot blower can run reliably for a long term in the positive pressure smoke environment.
Description
Technical field
The utility model relates to a kind of steam sootblower that is used on petrochemical industry waste heat boiler and the heating furnace.
Background technology
At present, the steam sootblower of ordinary construction is only applicable to station boiler etc. usually to have in the negative pressure flue gas environment of air-introduced machine, in malleation flue gas environment such as the waste heat boiler of oil, petroleum chemical enterprise, heating furnace, owing to lack the measure that prevents that effectively pressure-fired dust-laden corrosion flue gas enters the soot blower rotating mechanism in the stove, tend to cause soot blower in long-time the use, to produce problems such as burn into is stuck, steam leakage, influence the service life of soot blower, therefore be necessary traditional steam sootblower is improved.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the above-mentioned shortcoming that prior art exists, and a kind of improved steam sootblower is provided, and it can move reliably in the malleation flue gas environment midium or long term.
The technical scheme that the utility model adopted is: a kind of positive pressure sealed stationary type steam soot blower comprises frame, valve, valve-opening mechanism, motor, transmission mechanism, blows grey steam steam inlet pipe, hollow shaft and blowing pipe; Frame is provided with an end plate in the side near boiler, offers the central through hole that passes for described blowing pipe on end plate; Valve is arranged between the end that blows grey steam steam inlet pipe and hollow shaft, and the other end of hollow shaft is connected with an end of blowing pipe; Transmission mechanism is driven hollow shaft and blowing pipe and is rotated together by motor-driven; This steam sootblower also comprises a plemum, and plemum is the cavity of sealing, and an end of plemum and the end plate of frame are connected, and the furnace wall of the other end and boiler is connected, and also is provided with a compressed air inlet on the sidewall of plemum; The other end of blowing pipe stretches in the boiler furnace after passing the central through hole of end plate and plemum.
Above-mentioned positive pressure sealed stationary type steam soot blower wherein, is provided with compressed air inlet on the sidewall of the valve body of valve, this compressed air inlet is connected with the valve body compressed air hose, in the valve body compressed air hose check-valves is installed.
Above-mentioned positive pressure sealed stationary type steam soot blower wherein, is arranged with stuffing box on the peripheral outer wall of one section blowing pipe in plemum, and the thickness of stuffing box is matched with the central through hole of frame end plate and the gap between the blowing pipe.
The utility model is provided with a plemum between the body of heater of frame and boiler, on the sidewall of plemum, compressed air inlet is set, and adopt stuffing box to seal plemum, thereby the compressed air that is higher than flue gas pressures in the body of heater can be delivered to plemum, guarantee that the flue gas in the body of heater can not leak in the atmosphere, has avoided pouring in down a chimney the problem that causes that the steam sootblower burn into is stuck because of flue gas.The utility model also is provided with compressed air inlet in side of valve body, by introduce compressed air when purge finishes, can prevent that the high-temperature flue gas of body of heater internal corrosion from invading valve body through blowing pipe, prolongs the service life of valve body.With valve body compressed air hose that compressed air inlet on the valve body is connected on check-valves is set, in the time of can guaranteeing to blow the ash beginning, elevated pressures blow grey medium such as steam can not enter in the valve body compressed air hose.
Description of drawings
Fig. 1 is the structural representation of positive pressure sealed stationary type steam soot blower of the present utility model.
The specific embodiment
As shown in Figure 1, positive pressure sealed stationary type steam soot blower of the present utility model comprises valve 1, transmission mechanism 2, frame 3, motor 4, blows grey steam steam inlet pipe 5, hollow shaft 6, blowing pipe 7, plemum 8 and valve-opening mechanism 9.Valve 1 is arranged between the end that blows grey steam steam inlet pipe 5 and hollow shaft 6, and the other end of hollow shaft 6 is connected with an end of blowing pipe 7 by adpting flange 61.When valve 1 is in opening, blow grey medium from the steam that blows 5 inputs of grey steam steam inlet pipe or other and be introduced in the hollow shaft 6, enter blowing pipe 7 by hollow shaft 6 again.Blowing pipe 7 can rotate in exhaust gases passes for blowing the passage of grey steam, is generally made by heat-resistance stainless steel.Valve 1 mainly comprises valve rod 11, compression spring 12 and valve body 13.Valve body 13 is made by steel-casting usually, through high precision processing, guarantees valve rod, the sealing of hollow shaft end reliably, and soot blower works well.Valve body 13 can be installed and removed separately, is convenient to maintenance.The utility model is provided with compressed air inlet on the sidewall of valve body 13, this compressed air inlet is connected with valve body compressed air hose 14, and the compressed air of importing from compressed air inlet can directly enter hollow shaft 6.By compressed air inlet, when purge finishes, compressed air is introduced in the valve body, can prevent that the high-temperature flue gas of body of heater internal corrosion from invading valve body through blowing pipe, thereby prolong the service life of valve body.Check-valves 15 has been installed on valve body compressed air hose 14, can have been guaranteed to blow when beginning ash, elevated pressures blow grey medium such as steam can not enter in the valve body compressed air hose.Valve-opening mechanism 9 is made up of eccentric wheel 91, camshaft 92 and contactless proximity switch 93 etc., by the rotation roof pressure valve rod 11 of eccentric wheel 91 and the resilience that resets of compressing spring 12, realizes the open and close of valve 1.
Transmission mechanism 2 comprises two pairs of gears 21,22, drive the harmonic speed reducer (not shown) by motor 4, drive two pairs of gears 21 simultaneously, 22 rotate, blowing pipe 7 rotations that wherein a pair of gear 21 drives hollow shaft 6 and links to each other with hollow shaft 6, another drives eccentric wheel 91 to gear 22 (only showing a gear among the figure) and rotates.
Frame 3 is mainly used in and installs and fixes valve body 13 and transmission mechanism 2 etc., to guarantee enough rigidity and stability.Frame 3 is provided with an end plate 31 in the side near boiler, offers the central through hole that passes for blowing pipe 7 on end plate 31.Plemum 8 is arranged between the furnace wall 10 of the end plate 31 of frame and boiler, is the cavity of sealing.One end of plemum 8 and the end plate of frame are welded to connect, and the other end is welded on the outer surface of furnace wall 10 by a connecting plate 83.Blowing pipe 7 stretches in the body of heater of boiler after passing the central through hole of end plate 31 and plemum 8.On the sidewall of plemum 8, be provided with a compressed air inlet, this compressed air inlet is connected with plemum compressed air hose 81, deliver to plemum by being higher than in the body of heater compressed air of flue gas pressures, can avoid pouring in down a chimney the problem that causes that the steam sootblower burn into is stuck because of the flue gas in the boiler furnace.As a kind of preferred implementation, be arranged with stuffing box 82 on the peripheral outer wall of one section blowing pipe in plemum 8, the thickness of stuffing box 82 is matched with the central through hole of end plate 31 and the gap between the blowing pipe, make this gap realize sealing, thereby can guarantee further that the flue gas in the boiler furnace can not leak into atmosphere, prevent that the rotatable parts of steam sootblower from causing corrosion because of the contact flue gas.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, person skilled in the relevant technique, under the situation that does not break away from spirit and scope of the present utility model, can also make various conversion (as replacing air) with other gases such as nitrogen, as long as in connotation scope of the present utility model, all will drop in the scope of the utility model claims variation, the modification of the above embodiment.
Claims (6)
1. a positive pressure sealed stationary type steam soot blower comprises frame, valve, valve-opening mechanism, motor, transmission mechanism, blows grey steam steam inlet pipe, hollow shaft and blowing pipe; Described frame is provided with an end plate in the side near boiler, offers the central through hole that passes for described blowing pipe on described end plate; Described valve is arranged between the described end that blows grey steam steam inlet pipe and described hollow shaft, and the other end of hollow shaft is connected with an end of blowing pipe; Described transmission mechanism is driven hollow shaft and blowing pipe and is rotated together by described motor-driven, it is characterized in that:
Described steam sootblower also comprises a plemum, and described plemum is the cavity of sealing, and an end of plemum and the end plate of frame are connected, and the furnace wall of the other end and boiler is connected, and also is provided with a compressed air inlet on the sidewall of plemum; The other end of described blowing pipe stretches in the boiler furnace after passing the central through hole of described end plate and plemum.
2. positive pressure sealed stationary type steam soot blower as claimed in claim 1 is characterized in that: be provided with compressed air inlet on the sidewall of the valve body of described valve, described compressed air inlet is connected with the valve body compressed air hose.
3. positive pressure sealed stationary type steam soot blower as claimed in claim 2 is characterized in that: in described valve body compressed air hose check-valves is installed.
4. positive pressure sealed stationary type steam soot blower as claimed in claim 1, it is characterized in that: be arranged with stuffing box on the peripheral outer wall of one section blowing pipe in described plemum, the thickness of described stuffing box is matched with the central through hole of frame end plate and the gap between the blowing pipe.
5. positive pressure sealed stationary type steam soot blower as claimed in claim 1 is characterized in that: described plemum is provided with connecting plate near an end of furnace wall, and described plemum connects by described connecting plate and the weldering of described furnace wall.
6. positive pressure sealed stationary type steam soot blower as claimed in claim 1, it is characterized in that: described transmission mechanism comprises harmonic speed reducer and two pairs of gears, the motor-driven harmonic speed reducer drives described two pairs of gears rotation simultaneously, and wherein a pair of gear driven hollow shaft and blowing pipe rotate together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200745344U CN201141611Y (en) | 2007-09-11 | 2007-09-11 | Positive sealing and fixing type steam ash blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200745344U CN201141611Y (en) | 2007-09-11 | 2007-09-11 | Positive sealing and fixing type steam ash blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201141611Y true CN201141611Y (en) | 2008-10-29 |
Family
ID=40069322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200745344U Expired - Lifetime CN201141611Y (en) | 2007-09-11 | 2007-09-11 | Positive sealing and fixing type steam ash blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201141611Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410526A (en) * | 2011-12-15 | 2012-04-11 | 杭州新世纪能源环保工程股份有限公司 | Corrosion-protection type fuel pulse generation device of constant-positive-pressure nozzle |
| CN104804751A (en) * | 2014-01-27 | 2015-07-29 | 神华集团有限责任公司 | Soot blowing device for rotary tray, and heat reactor thereof |
| CN113375177A (en) * | 2021-05-28 | 2021-09-10 | 国能神皖池州发电有限责任公司 | Boiler and sealing method |
-
2007
- 2007-09-11 CN CNU2007200745344U patent/CN201141611Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410526A (en) * | 2011-12-15 | 2012-04-11 | 杭州新世纪能源环保工程股份有限公司 | Corrosion-protection type fuel pulse generation device of constant-positive-pressure nozzle |
| CN104804751A (en) * | 2014-01-27 | 2015-07-29 | 神华集团有限责任公司 | Soot blowing device for rotary tray, and heat reactor thereof |
| CN104804751B (en) * | 2014-01-27 | 2017-04-26 | 神华集团有限责任公司 | Soot blowing device for rotary tray, and heat reactor thereof |
| CN113375177A (en) * | 2021-05-28 | 2021-09-10 | 国能神皖池州发电有限责任公司 | Boiler and sealing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Ningbo Yuancheng Petrochemical and Electrical Machinery Co., Ltd. Assignor: The first Research Institute of China Shipbuilding Industry Corp Contract fulfillment period: 2009.4.10 to 2014.4.9 Contract record no.: 2009330000808 Denomination of utility model: Positive sealing and fixing type steam ash blower Granted publication date: 20081029 License type: Exclusive license Record date: 20090429 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.4.10 TO 2014.4.9; CHANGE OF CONTRACT Name of requester: NINGBO YUANCHENG PETROCHEMICAL ELECTRICAL MACHINAR Effective date: 20090429 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151208 Address after: 201108 Shanghai city Minhang District Huaning Road No. 3111 Building 1 room 629 Patentee after: Shanghai shine Heavy Industry Co., Ltd. Address before: 201108 Shanghai city Minhang District Huaning Road No. 3111 Patentee before: The 711th Research Institute of China Shipbuilding Industrial Corporation(CSIC) |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151222 Address after: 201108 Shanghai city Minhang District Huaning Road No. 3111 Patentee after: The 711th Research Institute of China Shipbuilding Industrial Corporation(CSIC) Address before: 201108 Shanghai city Minhang District Huaning Road No. 3111 Building 1 room 629 Patentee before: Shanghai shine Heavy Industry Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081029 |