CN215489662U - Steam soot blowing air source pipeline - Google Patents
Steam soot blowing air source pipeline Download PDFInfo
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- CN215489662U CN215489662U CN202121497058.3U CN202121497058U CN215489662U CN 215489662 U CN215489662 U CN 215489662U CN 202121497058 U CN202121497058 U CN 202121497058U CN 215489662 U CN215489662 U CN 215489662U
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Abstract
The utility model provides a steam soot blowing gas source pipeline which comprises a soot blowing main pipe, a soot blowing main door, a side A body soot blowing pipeline, a side B body soot blowing pipeline, a side A body soot blowing sectional valve, a side B body soot blowing sectional valve and other user soot blowing pipelines, wherein the soot blowing main pipe, the soot blowing main door, the side A body soot blowing pipeline, the side B body soot blowing sectional valve and the other user soot blowing pipelines are communicated with a boiler body; the soot blowing device comprises an A side body soot blowing pipeline, a B side body soot blowing pipeline, a soot blowing main pipe, a soot blowing main door, a soot blowing main pipe and a soot blowing main pipe, wherein the A side body soot blowing sectional valve is arranged on the A side body soot blowing pipeline, the B side body soot blowing sectional valve is arranged on the B side body soot blowing pipeline, the tail ends of the A side body soot blowing pipeline and the B side body soot blowing pipeline are respectively connected with one end of the soot blowing main pipe, the soot blowing main pipe is provided with the soot blowing main door, and one ends of other user soot blowing pipelines are connected with the soot blowing main pipe. The utility model solves the problem of service life reduction caused by long-term pressure-bearing operation of the body soot blower lift valve, improves the phenomenon of soot blowing water entrainment, and ensures the stable operation of the heating surface.
Description
Technical Field
The utility model relates to the technical field of thermal power generation, in particular to a steam soot blowing gas source pipeline.
Background
In a conventional thermal power plant, during the normal operation of a boiler, equipment such as a heating surface of the boiler, denitration, desulfurization, an air preheater and the like needs to be subjected to periodic soot blowing so as to reduce soot deposition on the heating surface, increase the heat transfer quantity of flue gas and working media, reduce the temperature of exhaust gas and increase the thermal efficiency of the boiler.
Leak the condition in often taking place for body soot blower gooseneck valve in actual operation, need to stop all soot blowers such as denitration, air preheater at the maintenance in-process and just can keep apart and maintain, it is great to other equipment influence. The analysis shows that the main reason of the inner leakage is that when all soot blowers blow soot, the gooseneck valve of the soot blower body bears the pressure of a soot blowing steam source, and the gooseneck valve is easy to leak due to long-term pressure bearing; and when other soot blowers blow soot, steam in the soot blowing pipeline of the body is not circulated and is easily changed into condensed water, so that the soot blowing pipeline is corroded. And when soot blowing is carried out next time, accumulated water in the pipeline can enter the furnace along with the soot blower, and the soot blowing with water can cause the cold and hot alternation phenomenon of the furnace tube, thereby triggering the tube explosion of the boiler.
In order to ensure the safety of equipment, the pressure bearing time of the equipment is reduced as much as possible, any soot blowing system can be isolated independently, the influence of the defects of the equipment on the whole system is reduced, the operation safety of a unit is ensured, and the problem to be solved by technical personnel in the field is solved urgently.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a steam soot blowing air source pipeline which solves the problem of service life reduction caused by long-term pressure-bearing operation of a body soot blower lift valve, improves the phenomenon of soot blowing water entrainment and ensures stable operation of a heating surface.
The technical scheme of the utility model is as follows:
a steam soot blowing gas source pipeline comprises a soot blowing main pipe, a soot blowing main door, a side A body soot blowing pipeline, a side B body soot blowing pipeline, a side A body soot blowing sectional valve, a side B body soot blowing sectional valve and other user soot blowing pipelines which are communicated with a boiler body;
the soot blowing device comprises an A side body soot blowing pipeline, a B side body soot blowing pipeline, a soot blowing main pipe, a soot blowing main door, a soot blowing main pipe and a soot blowing main pipe, wherein the A side body soot blowing sectional valve is arranged on the A side body soot blowing pipeline, the B side body soot blowing sectional valve is arranged on the B side body soot blowing pipeline, the tail ends of the A side body soot blowing pipeline and the B side body soot blowing pipeline are respectively connected with one end of the soot blowing main pipe, the soot blowing main pipe is provided with the soot blowing main door, and one ends of other user soot blowing pipelines are connected with the soot blowing main pipe.
Preferably, the other user soot blowing pipelines are connected between the soot blowing main door and one end of a soot blowing main pipe connected with the tail ends of the side A body soot blowing pipeline and the side B body soot blowing pipeline.
Preferably, the side A body soot blowing pipeline, the side B body soot blowing pipeline and the soot blowing main pipe are respectively welded at one end of a four-way sleeve, the four-way sleeve comprises four ends, namely an upper end, a lower end, a left end and a right end, the side A body soot blowing pipeline is connected with the left end or the right end, the side B body soot blowing pipeline is connected with the left end or the right end, the soot blowing main pipe is connected with the upper end, the lower end of the four-way sleeve is connected with a drying agent storage chamber, the drying agent storage chamber is spherical, a filter screen is arranged at the upper end of the drying agent storage chamber, and drying agents are placed in the drying agent storage chamber.
Preferably, the inner walls of the soot blowing pipeline of the side A body and the soot blowing pipeline of the side B body are provided with anticorrosive coatings.
Preferably, the drying agent storage chamber is in threaded connection with the four-way sleeve, and a sealing gasket is arranged at the joint.
The utility model has the beneficial effects that:
the utility model has been successfully applied to 600MW supercritical air cooling units of a thermal power plant. The problem of service life reduction caused by long-term pressure-bearing operation of the body soot blower lift valve is successfully solved by modifying a steam source of the steam soot blower, the phenomenon of water carrying of soot blowing is improved, and stable operation of a heating surface is guaranteed.
After the improvement is completed, the internal leakage condition of the lift valve of the soot blower of the body can be effectively reduced, so that the risk of blowing damage of the heating surface caused by soot blower leakage is reduced. Meanwhile, the body soot blowing device can be isolated independently, when the device breaks down, other soot blowing users are not affected, soot blowing can be continued, and the influence on the whole system can be reduced to the maximum extent. And simultaneously, the problem of heating surface leakage caused by soot blowing with water is solved.
The utility model can isolate the soot blowing system of the body when other users blow soot, so as to avoid inner leakage caused by long-term operation of the gooseneck valve of the soot blower of the body at high temperature and high pressure, and isolate the soot blowing pipeline of the body, so as to avoid corrosion of long-term condensed water in the soot blowing pipeline of the body.
The utility model solves the problem of service life reduction caused by long-term pressure-bearing operation of the body soot blower poppet valve by changing the original soot blowing steam source system and redesigning the soot blowing steam source pipeline arrangement mode, thoroughly eliminates the potential safety hazard of unit shutdown and even personal injury caused by internal leakage of the body soot blower gooseneck valve and pipeline corrosion, ensures the unit operation safety and provides effective guarantee for the overall economic benefit of the unit.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic view of the four-way bushing connection structure of the present invention.
In the attached drawing, a side 1-A body soot blowing pipeline, a side 2-B body soot blowing pipeline, a side 3-A body soot blowing sectional valve, a side 4-B body soot blowing sectional valve, a side 5-soot blowing main pipe, a side 6 soot blowing main door, a side 7-other user soot blowing pipeline, a side 8-four-way sleeve, an upper end 81-an lower end 82-a left end, a side 84-a right end, a drying agent storage chamber 9-a drying agent 91-a filter screen and a drying agent 92-are arranged in the main body soot blowing pipeline.
Detailed Description
As shown in fig. 1-2, a steam soot blowing gas source pipeline comprises a soot blowing main pipe 5, a soot blowing main door 6, a side a body soot blowing pipeline 1, a side B body soot blowing pipeline 2, a side a body soot blowing sectional valve 3, a side B body soot blowing sectional valve 4 and other user soot blowing pipelines 7 which are communicated with a boiler body;
the automatic soot blowing device is characterized in that an A side body soot blowing sectional valve 3 is arranged on an A side body soot blowing pipeline 1, a B side body soot blowing sectional valve 4 is arranged on a B side body soot blowing pipeline 2, the tail ends of the A side body soot blowing pipeline 1 and the B side body soot blowing pipeline 2 are respectively connected with one end of a soot blowing main pipe 5, a soot blowing main door 6 is arranged on the soot blowing main pipe 5, and one end of a soot blowing pipeline 7 of other users is connected with the soot blowing main pipe 5.
Preferably, the other user soot blowing pipelines 7 are connected between the soot blowing main door 6 and one end of the soot blowing main pipe connected with the tail ends of the A side body soot blowing pipeline 1 and the B side body soot blowing pipeline 2.
Preferably, the side a body soot blowing pipeline 1, the side B body soot blowing pipeline 2 and the soot blowing main pipe 5 are respectively welded at one end of a four-way sleeve 8, the four-way sleeve 8 comprises four ends, namely an upper end 81, a lower end 82, a left end 83 and a right end 84, the side a body soot blowing pipeline 1 is connected with the left end 83 or the right end 84, the side B body soot blowing pipeline 2 is connected with the left end 83 or the right end 84, the soot blowing main pipe 5 is connected with the upper end 81, the lower end 82 of the four-way sleeve 8 is connected with a desiccant storage chamber 9, the desiccant storage chamber 9 is spherical, a filter screen 91 is arranged at the upper end of the desiccant storage chamber 9, and a desiccant 92 is placed in the desiccant storage chamber 9.
Preferably, the inner walls of the soot blowing pipeline 1 of the side A body and the soot blowing pipeline 2 of the side B body are provided with anticorrosive coatings, so that the pipelines can be protected from being corroded.
Preferably, the drying agent storage chamber 9 is in threaded connection with the four-way sleeve 8, and a sealing gasket is arranged at the connection position.
When the body blows the ash, the ash blowing main door 6, the side A body ash blowing sectional valve 3 and the side B body ash blowing sectional valve 4 are opened in sequence to blow the ash to the boiler. When other users blow soot, the soot blowing sectional valve 3 of the side A body and the soot blowing sectional valve 4 of the side B body are closed, and the soot blowing main door 6 is opened to blow soot to other users. So can keep apart the body when other users blow the ash and blow the ash system, unlikely to make the body soot blower gooseneck valve long-term high temperature, high pressure down the operation lead to appearing leaking the condition in, also keep apart the body soot blowing pipeline simultaneously, unlikely to make the body soot blowing pipeline in have the condensate water to appear the corruption condition for a long time.
The four-way sleeve 8 is used for conveniently connecting the soot blowing pipeline 1 of the side A body, the soot blowing pipeline 2 of the side B body, the soot blowing main pipe 5 and the drying agent storage chamber 9, the drying agent storage chamber 9 is arranged at the lower end 82 of the four-way sleeve 8, water blown in the soot blowing process can be absorbed conveniently, the four-way sleeve 8 is in threaded connection with the drying agent storage chamber 9 for convenient replacement, a filter screen 91 is arranged in the drying agent storage chamber 9 and can press drying agents, soot blowing is performed from top to bottom, the drying agents 92 are not easy to blow away, and the effect is good.
Claims (5)
1. A steam soot blowing gas source pipeline is characterized by comprising a soot blowing main pipe, a soot blowing main door, a side A body soot blowing pipeline, a side B body soot blowing pipeline, a side A body soot blowing sectional valve, a side B body soot blowing sectional valve and other user soot blowing pipelines which are communicated with a boiler body;
the soot blowing device comprises an A side body soot blowing pipeline, a B side body soot blowing pipeline, a soot blowing main pipe, a soot blowing main door, a soot blowing main pipe and a soot blowing main pipe, wherein the A side body soot blowing sectional valve is arranged on the A side body soot blowing pipeline, the B side body soot blowing sectional valve is arranged on the B side body soot blowing pipeline, the tail ends of the A side body soot blowing pipeline and the B side body soot blowing pipeline are respectively connected with one end of the soot blowing main pipe, the soot blowing main pipe is provided with the soot blowing main door, and one ends of other user soot blowing pipelines are connected with the soot blowing main pipe.
2. The steam soot blowing gas source pipeline as claimed in claim 1, wherein the other user soot blowing pipelines are connected between the soot blowing main door and one end of the soot blowing main pipe connected with the tail ends of the A side body soot blowing pipeline and the B side body soot blowing pipeline.
3. The steam soot blowing air source pipeline as claimed in claim 1, wherein the side-A body soot blowing pipeline, the side-B body soot blowing pipeline and the soot blowing main pipe are respectively welded at one end of a four-way sleeve, the four-way sleeve comprises four ends, namely an upper end, a lower end, a left end and a right end, the side-A body soot blowing pipeline is connected with the left end or the right end, the side-B body soot blowing pipeline is connected with the left end or the right end, the soot blowing main pipe is connected with the upper end, the lower end of the four-way sleeve is connected with a drying agent storage chamber, the drying agent storage chamber is spherical, a filter screen is arranged at the upper end of the drying agent storage chamber, and drying agent is placed in the drying agent storage chamber.
4. The steam soot blowing gas source pipeline as claimed in claim 1, wherein the inner walls of the A side body soot blowing pipeline and the B side body soot blowing pipeline are provided with an anticorrosive layer.
5. The steam soot blowing gas source pipeline as claimed in claim 3, wherein the drying agent storage chamber is in threaded connection with the four-way sleeve, and a sealing gasket is arranged at the connection position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121497058.3U CN215489662U (en) | 2021-07-01 | 2021-07-01 | Steam soot blowing air source pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121497058.3U CN215489662U (en) | 2021-07-01 | 2021-07-01 | Steam soot blowing air source pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215489662U true CN215489662U (en) | 2022-01-11 |
Family
ID=79724130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121497058.3U Active CN215489662U (en) | 2021-07-01 | 2021-07-01 | Steam soot blowing air source pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215489662U (en) |
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2021
- 2021-07-01 CN CN202121497058.3U patent/CN215489662U/en active Active
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