CN202229159U - Boiler blower wind-pressure interlocking device - Google Patents
Boiler blower wind-pressure interlocking device Download PDFInfo
- Publication number
- CN202229159U CN202229159U CN2011203478178U CN201120347817U CN202229159U CN 202229159 U CN202229159 U CN 202229159U CN 2011203478178 U CN2011203478178 U CN 2011203478178U CN 201120347817 U CN201120347817 U CN 201120347817U CN 202229159 U CN202229159 U CN 202229159U
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Abstract
The utility model belongs to the technical field of boiler blowers and draught fan devices, and in particular relates to a boiler blower wind-pressure interlocking device. The boiler blower wind-pressure interlocking device comprises a controller and an alarm, a wind pressure monitoring device is arranged on an induced draft channel and consists of a pipe joint, a fixing shaft, a rotary sleeve, a windward plate and a travel switch, the travel switch is fixed on the outer wall of the pipe joint and is connected with the controller and the alarm, and a sector-shaped through hole is arranged on the wall of the pipe joint. The windward plate consists of a steel plate and two symmetrical sector-shaped arc plates, the curvature radius of the outer surface of each symmetrical sector-shaped arc plate is as same as that of the inner surface of the pipe joint, and the symmetrical sector-shaped arc plates are connected with the pipe joint in a sliding manner. The boiler blower wind-pressure interlocking device disclosed by the utility model has the advantages that: the windward plate is arranged in the induced draft channel and is used for detecting the wind pressure of the interior of the induced draft channel so as to control the operation of a blower, thereby ensuring that the blower immediately stops operation and gives out an alarm when a draught fan does not work or work abnormally to avoid a sting-out accident of a boiler.
Description
Technical field
The utility model belongs to boiler with pressure fan, air-introduced machine equipment technical field, relates in particular to a kind of boiler fan blast interlock.
Background technology
The wind power system of power boiler partly is made up of air-introduced machine and pressure fan two, and boiler operatiopn is in negative pressure state.After air-introduced machine started normally earlier during operation, pressure fan was restarted.Stop air-introduced machine again behind the out-of-blast machine earlier during parking.In general air-introduced machine and the pressure fan control system electric interlock facility is housed all, its purpose is exactly that air-introduced machine is in case after stopping, pressure fan is automatic stopping just.But air-introduced machine is continuously the plant equipment of operation; Also be prone to fatigue damage, twisted off phenomenon, even this moment, draught fan impeller did not change such as blower motor shaft coupling screw in actual motion, occurring; Blower motor dallies in the same old way, the result be pressure fan still normally the operation and can not stop.Also have a kind of situation: because the post workman is off one's guard, do not check whether the air inducing valve is opened after starting, change trains or buses at air-introduced machine, in case the air inducing valve closing, because blower motor turns round, pressure fan also is normal operation and can not stopping so.The above-mentioned outside flame 1-2 rice of boiler furnace that either way can cause very easily will be observed the personnel's burn or near the equipment of scaling loss of the working of a furnace.
Summary of the invention
The purpose of the utility model is to provide a kind of boiler fan blast interlock; Draw the running that blast in the phoenix passage is controlled pressure fan through detection; Guarantee to draw that the phoenix machine is not worked or during operation irregularity, pressure fan shuts down at once and reports to the police, and avoids boiler the flame accident to occur.
The purpose of the utility model realizes through following technical proposals:
The boiler fan blast interlock of the utility model; Comprise the alarm that the control device that is connected with air-introduced machine with pressure fan is connected with control device therewith; It is characterized in that on air-inducing passage, being provided with a wind pressure monitoring device; The tube coupling that this wind pressure monitoring device is connected with the air-introduced machine passage by two ends, the fixed axis that is connected of tube coupling outer wall therewith, the revolving sleeve that is rotationally connected of fixed axis therewith; The plate that facings the wind that revolving sleeve is connected therewith; The travel switch that the plate that facings the wind therewith links is formed, and described travel switch is fixed on the described tube coupling outer wall and with described control device and warning device and is connected, and has a fan-shaped port on the tube wall of said tube coupling.
Described facing the wind plate by upper end and the steel plate of described revolving sleeve fixed connection with respectively therewith the two symmetrical fan-shaped arc plates that are connected of two plate faces of steel plate form, the outer surface curvature radius of the fan-shaped arc plate of said symmetry and the interior surface curvature radius of said tube coupling is consistent and therewith tube coupling be slidingly connected.
The operation principle of the utility model:
When 1, the induced draught system of the utility model is in proper working order; The plate that facings the wind is in heeling condition by distinguished and admirable the brushing of oncoming high pressure; And force the swing arm of the travel switch that is abutted against and the plate that facings the wind to rotate in the same way; Immediately normal battle of travel switch closed, normally closed point breaks off, the control device that is connected with travel switch sends instruction; Pressure fan begins startup work;
When 2, the induced draught system of the utility model breaks down; Because the blast in the air-inducing passage reduces, the plate revolution of facining the wind, when blast less than minimum working pressure power value below; The plate that facings the wind just is in the nature hang; The swing arm of travel switch is return thereupon, normal disconnection battle of travel switch, normally closed closed at this moment, and the control device that is connected with travel switch sends instruction; Pressure fan quits work, and starts alarm equipment alarm simultaneously.
The advantage of the utility model:
The utility model is monitored the blast in the air-inducing passage through the plate that facings the wind that can swing is set in air-inducing passage, control the startup of pressure fan with this, and air-introduced machine is which kind of reason no matter, as long as blast is not enough in the air-inducing passage; The boiler safety work that is connected with pressure fan is guaranteed in the just nonvoluntary work of undesired air draft, pressure fan.And in the course of the work, air-introduced machine not only can let pressure fan in time stop in case appearance is unusual, and the very first time reports to the police.Avoid accident to enlarge, damage Field Force and equipment, improve equipment operation rate.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the A-A cutaway view of the utility model Fig. 1.
The specific embodiment
The specific embodiment below in conjunction with description of drawings the utility model.
Like Fig. 1, shown in Figure 2: the boiler fan blast interlock of the utility model; Comprise the alarm that the control device that is connected with air-introduced machine with pressure fan is connected with control device therewith; It is characterized in that on air-inducing passage, being provided with a wind pressure monitoring device; The tube coupling 2 that this wind pressure monitoring device is connected with the air-introduced machine passage by two ends, the fixed axis 3 that is connected of tube coupling 2 outer walls therewith, the revolving sleeve 7 that is rotationally connected of fixed axis 3 therewith; The plate that facings the wind that revolving sleeve 7 is connected therewith; Facing the wind therewith 1 composition of travel switch of plate interlock, described travel switch is fixed on the described tube coupling outer wall and with described control device and warning device and is connected, and has a fan-shaped port 4 on 2 the tube wall of said tube coupling.
Described facing the wind plate by upper end and the steel plate 5 of described revolving sleeve 7 fixed connections with respectively therewith two 6 of the symmetrical fan-shaped arc plates that are connected of two plate faces of steel plate 5 form, the outer surface curvature radius of the fan-shaped arc plate 6 of described symmetry and the interior surface curvature radius of said tube coupling is consistent and therewith tube coupling be slidingly connected.The said plate that facings the wind can back and forth rotate around fixed axis 3, and the inner surface of two fan-shaped arc plates of symmetry and tube coupling 2 slides all the time, though from any position all with the fan-shaped port obstruction on the tube coupling, prevent that pipeline from leaking out.
The travel switch and the plate interlock of facining the wind; That is: the swing arm of travel switch is swung with the plate that facings the wind under the plate that facings the wind promotes in the same way; Travel switch often is provided with and opens, normally closed two contacts; These two contacts are connected with control device, and normal the battle controlled the start and stop of pressure fan through control device, and normally closed point is being controlled the warning function of alarm through control device.When the air-introduced machine operate as normal; When blast is big in the air-inducing passage, the normal closure of making war, pressure fan starts the air-supply function, and normally closed point breaks off.Otherwise air-introduced machine breaks down or does not work; Blast diminishes or when calm, and normally closed point is closed and report to the police, and normal the battle broken off out-of-blast machine work.
Claims (2)
1. boiler fan blast interlock; Comprise the alarm that the control device that is connected with air-introduced machine with pressure fan is connected with control device therewith, it is characterized in that on air-inducing passage, being provided with a wind pressure monitoring device, the tube coupling that this wind pressure monitoring device is connected with the air-introduced machine passage by two ends; The fixed axis that is connected of tube coupling outer wall therewith; The revolving sleeve that is rotationally connected of fixed axis therewith, the plate that facings the wind that revolving sleeve is connected therewith, the travel switch of the plate interlock of facining the wind is therewith formed; Described travel switch is fixed on the described tube coupling outer wall and with described control device and warning device and is connected, and has a fan-shaped port on the tube wall of said tube coupling.
2. boiler fan blast interlock according to claim 1; It is characterized in that described facing the wind plate by upper end and the steel plate of described revolving sleeve fixed connection with respectively therewith the two symmetrical fan-shaped arc plates that are connected of two plate faces of steel plate form, the outer surface curvature radius of the fan-shaped arc plate of said symmetry and the interior surface curvature radius of said tube coupling is consistent and therewith tube coupling be slidingly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203478178U CN202229159U (en) | 2011-09-16 | 2011-09-16 | Boiler blower wind-pressure interlocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203478178U CN202229159U (en) | 2011-09-16 | 2011-09-16 | Boiler blower wind-pressure interlocking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202229159U true CN202229159U (en) | 2012-05-23 |
Family
ID=46079744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203478178U Expired - Lifetime CN202229159U (en) | 2011-09-16 | 2011-09-16 | Boiler blower wind-pressure interlocking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202229159U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404320A (en) * | 2018-10-30 | 2019-03-01 | 攀钢集团工程技术有限公司 | Crane axial flow blower blast switch device |
-
2011
- 2011-09-16 CN CN2011203478178U patent/CN202229159U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404320A (en) * | 2018-10-30 | 2019-03-01 | 攀钢集团工程技术有限公司 | Crane axial flow blower blast switch device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 114001 Anshan District, Liaoning, No. 219 Road, No. 39, Tiedong Patentee after: Anshan Iron and Steel Group Mining Co., Ltd. Address before: 114001 Anshan District, Liaoning, No. 219 Road, No. 39, Tiedong Patentee before: Angang Group Mine Company |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120523 |