CN210832051U - Acetylene soot blowing system with anti-corrosion function - Google Patents
Acetylene soot blowing system with anti-corrosion function Download PDFInfo
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- CN210832051U CN210832051U CN201920534324.1U CN201920534324U CN210832051U CN 210832051 U CN210832051 U CN 210832051U CN 201920534324 U CN201920534324 U CN 201920534324U CN 210832051 U CN210832051 U CN 210832051U
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Abstract
The utility model discloses an acetylene soot blowing system with anti-corrosion function, which comprises a soot blowing device for blowing soot for a tank body and a hot air device for conveying hot air for the soot blowing device; the soot blowing system comprises a mixed gas input pipe, a pulse soot blowing generator, a pulse soot blowing pipe and a soot blowing pipeline, wherein the mixed gas input pipe is arranged at one end of the pulse soot blowing generator; the hot air device comprises a fan, a heater and a fan output pipeline, wherein one end of the fan output pipeline is connected with the fan, and the other end of the fan output pipeline is connected with a soot blowing pipeline; the heater is arranged on the fan output pipeline. Through the utility model discloses, the wind temperature of heating positive pressure fan can make water vaporization be taken away by the flue gas to reach an air-dry pipeline, prevent the flying dust and scurry the effect of going into the pipeline, restraining the strong acid and generating, reduce the plant maintenance, improve the stability of system operation.
Description
Technical Field
The utility model relates to a refuse treatment technical field especially relates to an acetylene soot blowing system with anti-corrosion function.
Background
Acetylene soot blowing system is a novel soot blowing system appearing in recent years, and the working principle is as follows: acetylene and air taken out of a common industrial acetylene cylinder are fully mixed according to a certain proportion, the concentration of the acetylene and the air reaches an explosion range, a high-energy igniter is used for ignition and explosion, the generated high-temperature flue gas enters an explosion chamber through a flame accelerating tube and is further exploded, strong explosion shock waves are generated and enter an impact tube, and an impact port arranged at the front end of the impact tube directly acts on a heating surface to blow dust, so that the dust deposition on the heating surface is reduced, and the normal operation working condition and the efficiency of a boiler are effectively ensured.
Acetylene soot blowing is one of the more effective and simple soot blowing modes of the existing garbage incinerator, and due to the reverse channeling of flue gas, the acetylene is combusted according to the chemical equation 2C2H2+5O2→ ignition → 4CO2+2H2O is shown as SO contained in the stored water and the reverse-flowing flue gas generated after acetylene explosion2The reaction will form H2SO3Sulfurous acid solution, if water is continuously stored in the pipeline, sulfurous acid can be oxidized to generate 2H2SO3+O2＝2H2SO4The strong acid causes high-strength corrosion to pipelines, and damages to acetylene tank bodies, pipelines and spray pipes are caused.
The corrosion damage of the acetylene tank, the pipeline and the spray pipe inevitably forms acetylene leakage to further influence the soot blowing effect of the heating surface, so that the soot deposition on the heating surface is aggravated. When serious, the over heater flue gas corridor is almost all stifled to be died, and ventilation resistance aggravation among the operation process influences combustion condition and boiler efficiency, and the phenomenon of forced blowing out the deashing also takes place occasionally, and the deashing degree of difficulty is corresponding grow also. Meanwhile, acetylene leakage pollutes air and is dangerous. Therefore, the normal operation of acetylene soot blowing is ensured, which is one of important ways for preventing boiler soot deposition, and the corrosion prevention of the acetylene soot blowing tank body is urgent.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an acetylene soot blowing system with anti-corrosion function to the comdenstion water in the steam and the air that solve the acetylene detonation production that exists among the prior art can with the SO that the burning produced2The sulfurous acid solution is formed by reaction, so that the acetylene tank and the pipeline are corroded, and the system operation is influenced.
In order to solve the technical problem, the utility model discloses a technical scheme be: the acetylene soot blowing system with the anti-corrosion function comprises a soot blowing device for blowing soot for a tank body and a hot air device for conveying hot air to the soot blowing device; the soot blowing system comprises a mixed gas input pipe, a pulse soot blowing generator, a pulse soot blowing pipe and a soot blowing pipeline, wherein the mixed gas input pipe is arranged at one end of the pulse soot blowing generator, the pulse soot blowing pipe is arranged at the other end of the pulse soot blowing generator, the pulse soot blowing pipe is also connected with a tank body, and the soot blowing pipeline is communicated with the pulse soot blowing pipe; the hot air device comprises a fan, a heater and a fan output pipeline, one end of the fan output pipeline is connected with the fan, and the other end of the fan output pipeline is connected with the soot blowing pipeline; the heater is arranged on the fan output pipeline.
The soot blower also comprises a first valve which is arranged corresponding to the mixed gas input pipe and is used for controlling the amount of gas input by the mixed gas input pipe.
The soot blower also comprises a second valve which is arranged on the soot blowing pipeline and used for controlling the air volume input from the hot air device.
The soot blower further comprises a third valve and a fourth valve, the third valve and the fourth valve are arranged on the pulse soot blowing pipe, the third valve is arranged on one side close to the pulse soot blowing generator and used for controlling the amount of gas output from the pulse soot blowing generator, and the fourth valve is arranged on one side close to the tank and used for controlling the amount of gas input into the tank.
The hot air device further comprises a fifth valve, wherein the fifth valve is arranged on the fan output pipeline and close to one side of the fan and is used for controlling the air quantity output by the fan.
Wherein, the fan is a positive pressure fan.
For solving the technical problem, the utility model discloses a another technical scheme is: the acetylene soot blowing system with the anti-corrosion function comprises a plurality of soot blowing devices, a hot air device, a mixed gas main pipe and a positive pressure air pipe, wherein the soot blowing devices are arranged on the upper surface of the acetylene blowing system; and the mixed gas input pipe of each soot blower is communicated and connected to the mixed gas main pipe, and the soot blowing pipeline of each soot blower is communicated and connected to the positive pressure air pipe.
Wherein, the fan is a positive pressure fan.
The utility model has the advantages that: be different from prior art's condition, the utility model provides a pair of acetylene soot blowing system with corrosion protection function increases a malleation fan at acetylene soot blowing tank platform, and total amount of wind sets up the amount of wind that is greater than when each minute jar is full of the air, lets each minute jar be the malleation state, prevents that the flue gas from scurrying. Furthermore, a heater of the positive pressure fan is arranged to heat the air temperature of the positive pressure fan, so that water can be vaporized and taken away by flue gas, thereby achieving the effects of air drying a pipeline, preventing flying ash from entering the pipeline and inhibiting strong acid from generating, reducing equipment maintenance and improving the stability of system operation.
Drawings
FIG. 1 is a schematic structural diagram of an acetylene soot blowing system with an anti-corrosion function according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an acetylene soot blowing system with an anti-corrosion function in another embodiment of the present invention.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Fig. 1 is a schematic structural diagram of an acetylene soot blowing system with an anti-corrosion function according to an embodiment of the present invention. The utility model discloses acetylene soot blowing system among the embodiment is arranged in boiler, jar body etc. among the refuse treatment system to blow grey. The acetylene soot blowing system 10 comprises a soot blowing device 11 for blowing soot for a tank body, and a hot air device 12 for delivering hot air in the working gap of the soot blowing device 11; wherein, the soot blower 11 is provided with a soot blowing pipeline 13 connected with the hot blast device 12.
Specifically, the sootblower 11 includes a mixed gas input pipe 111, a pulse sootblower generator 112, and a pulse sootblower pipe 113. The mixed gas input pipe 111 is provided at one end of the pulse sootblower 112 for supplying a mixed gas of acetylene and oxygen. The pulse soot blowing pipe 113 is arranged at the other end of the pulse soot blowing generator 112, and the pulse soot blowing pipe 113 is also connected with a tank body. The pulse soot blowing generator 112 is used for generating pulse waves after inputting mixed gas of acetylene and oxygen, and the pulse waves are sprayed out through the pulse soot blowing pipe 113 so as to blow off accumulated soot in the tank body.
Further, the sootblower 11 also includes a first valve 114, a second valve 115, a third valve 116, and a fourth valve 117. The first valve 114 is disposed corresponding to the mixed gas input pipe 111, and is used for controlling the amount of the gas input by the mixed gas input pipe 111.
The third valve 116 and the fourth valve 117 are disposed on the pulse sootblower 113, wherein the third valve 116 is disposed on a side near the pulse sootblower 112 for controlling the amount of gas output from the pulse sootblower 112. The fourth valve 117 is disposed at a side close to the tank for controlling the amount of gas input to the tank.
The soot blowing pipeline 13 is communicated with the pulse soot blowing pipe 113, the second valve 115 is arranged on the soot blowing pipeline 13, and the other end of the soot blowing pipeline 13 is also connected with the hot air device 12. The second valve 115 is used to control the amount of air input from the hot air device 12. Specifically, the hot air device 12 includes a fan 121, a heater 122, and a fan output pipe 123, wherein one end of the fan output pipe 123 is connected to the fan 121, and the other end is connected to the soot blowing pipe 13. The heater 122 is provided on the fan output duct 123 for heating the wind output through the fan output duct 123.
Further, a fifth valve 124 is disposed on the fan output pipe 123 on a side close to the fan 121, and is used for controlling the air volume output by the fan 121.
When the fan 121 works, air is supplied through the fan output pipeline 123, the supplied air is heated through the heater 122 and then enters the soot blowing pipeline 13 to blow hot air to the edge of the pulse soot blowing spray pipe 113, SO that the long-term dry noise of the pulse soot blowing spray pipe 113 is kept, and SO contained in the residual moisture and the reverse-flowing flue gas are prevented2The sulfurous acid solution generated by the reaction forms high-strength corrosion on pipelines.
Chemical equation 2C from acetylene combustion2H2+5O2→ ignition → 4CO2+2H2O can be seen, water is generated after acetylene explosion, and the water and SO contained in the reverse-flowing flue gas2The reaction will form H2SO3Sulfurous acid solution, if water is continuously stored in the pipeline, sulfurous acid can be oxidized to generate 2H2SO3+O2＝2H2SO4Strong acid, high strength corrosion to the pipeline.
The soot blowing system 10 overcomes the back-flow resistance generated by the flue gas vortex and the combustion positive pressure as long as a trace amount of air is continuously fed into the hearth, and the air feeding and the temperature condition of the existing pipeline can effectively dry the pipeline and eliminate the accumulated water in the pipeline, thereby achieving the effects of air drying the pipeline, preventing the flying ash from flowing into the pipeline and inhibiting the generation of strong acid.
In the present embodiment, the fan 121 is a positive pressure fan. Specifically, the air volume delivered by the positive pressure fan is preset to be larger than the air volume when the pulse soot blowing generator 112 is full of air, so that the pulse soot blowing generator 112 is in a positive pressure state, and the flue gas is prevented from flowing backwards.
If the air is humid, the water vapor generated by acetylene deflagration and the condensed water in the air can be mixed with the SO generated by combustion2The reaction forms a sulfurous acid solution to corrode the acetylene cylinder and the pipeline. Therefore, the heater 123 is arranged, and the heater 123 can adopt flue gas with the outlet temperature of about 155 ℃ of the bag-type dust collector to heat the air temperature of the positive pressure fan, so that the heating temperature exceeds 100 ℃. The air quantity above 100 ℃ can lead water to be vaporized and taken away by the flue gas, and can also keep the positive pressure state of the acetylene tank body, thereby preventing the flue gas and fly ash from reversely flowing into the acetylene soot blowing tank body and a pipeline, and the air temperature above 100 ℃ is sprayed into a hearth and a tail flue without influencing the combustion of a boiler and the air flow of the flue gas.
Fig. 2 is a schematic structural diagram of an acetylene soot blowing system 20 with an anti-corrosion function according to another embodiment of the present invention. The acetylene soot blowing system 20 comprises a plurality of soot blowing devices 21 for blowing soot for a tank body, and a hot air device 22 for delivering hot air in the working gap of each soot blowing device 21.
Each sootblower 21 includes a mixed gas input tube 211, a pulse sootblower generator 212, and a pulse sootblower tube 213. The mixed gas input pipe 211 is provided at one end of the pulse sootblower generator 212 for supplying a mixed gas of acetylene and oxygen. The pulse soot blowing pipe 213 is disposed at the other end of the pulse soot blower generator 212, and the pulse soot blowing pipe 213 is further connected to a canister.
Further, the sootblowing system 20 further includes a mixed gas main pipe 23 and a positive pressure air pipe 24, and the mixed gas input pipe 211 of each sootblower 21 is communicatively connected to the mixed gas main pipe 23. The sootblower 21 is further provided with sootblowing pipes 218, and each sootblowing pipe 218 is further communicatively connected to the positive pressure air duct 24.
The hot air device 22 comprises a fan 221, a heater 222 and a fan output pipeline 223, wherein one end of the fan output pipeline 223 is connected with the fan 221, and the other end is connected with the positive pressure air pipe 24. The heater 222 is provided on the fan output duct 223 for heating the wind output through the fan output duct 223.
When the blower 221 works, air is supplied through the blower output pipe 223, the supplied air is heated through the heater 222, and then enters the positive pressure air pipe 24 to blow hot air to the edge of each pulse soot blowing nozzle 213, so that the pulse soot blowing nozzles 213 can keep dry for a long time.
In the present embodiment, the total air volume of the positive pressure fan is set to be larger than the air volume of each pulse soot blowing generator 212 when it is filled with air, so that each sub-tank is in a positive pressure state, and the reverse flow of flue gas is prevented.
More than, the utility model discloses the acetylene soot blowing system with corrosion protection function who provides among the embodiment increases a malleation fan at acetylene soot blowing tank platform, and total amount of wind sets up the amount of wind that is greater than when each minute jar is full of the air, lets each minute jar be the malleation state, prevents that the flue gas from scurrying. Furthermore, a heater of the positive pressure fan is arranged to heat the air temperature of the positive pressure fan, so that water can be vaporized and taken away by flue gas, thereby achieving the effects of air drying a pipeline, preventing flying ash from entering the pipeline and inhibiting strong acid from generating, reducing equipment maintenance and improving the stability of system operation.
It should be noted that the preferred embodiments of the present invention are described in the specification and the drawings, but the present invention can be realized in many different forms, and is not limited to the embodiments described in the specification, and these embodiments are not provided as additional limitations to the present invention, and are provided for the purpose of making the understanding of the disclosure of the present invention more thorough and complete. Moreover, the above features are combined with each other to form various embodiments not listed above, and all of them are considered as the scope of the present invention described in the specification; further, modifications and variations will occur to those skilled in the art in light of the foregoing description, and it is intended to cover all such modifications and variations as fall within the true spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. An acetylene soot blowing system with an anti-corrosion function comprises a soot blowing device for blowing soot for a tank body, and is characterized by also comprising a hot air device for conveying hot air for the soot blowing device, a mixed gas main pipe and a positive pressure air pipe; the soot blowing device comprises a mixed gas input pipe, a pulse soot blowing generator, a pulse soot blowing pipe and a soot blowing pipeline, wherein the mixed gas input pipe is arranged at one end of the pulse soot blowing generator and is communicated and connected with the mixed gas main pipe, and the soot blowing pipeline is communicated and connected to the positive pressure air pipe; the pulse soot blowing pipe is arranged at the other end of the pulse soot blowing generator, the pulse soot blowing pipe is also connected with the tank body, and the soot blowing pipeline is communicated with the pulse soot blowing pipe;
the hot air device comprises a fan, a heater and a fan output pipeline, one end of the fan output pipeline is connected with the fan, and the other end of the fan output pipeline is connected with the soot blowing pipeline; the heater is arranged on the fan output pipeline and heats the wind output by the fan output pipeline.
2. The acetylene sootblowing system with an anti-corrosion function according to claim 1, wherein the sootblowing device further comprises a first valve disposed corresponding to the mixed gas input pipe for controlling the amount of gas input by the mixed gas input pipe.
3. The acetylene sootblowing system with an anti-corrosion function according to claim 1, wherein the sootblowing device further comprises a second valve disposed on the sootblowing pipeline for controlling the amount of air input from the hot air device.
4. The acetylene sootblowing system with corrosion protection as claimed in claim 1, wherein the sootblower further comprises a third valve and a fourth valve, disposed on the pulse sootblowing pipe, the third valve being disposed on a side close to the pulse sootblowing generator for controlling an amount of gas output from the pulse sootblowing generator, and the fourth valve being disposed on a side close to the canister for controlling an amount of gas input to the canister.
5. The acetylene soot blowing system with the corrosion prevention function according to claim 1, wherein the hot air device further comprises a fifth valve arranged on the fan output pipeline and close to one side of the fan, and used for controlling the air volume output by the fan.
6. The acetylene sootblowing system with an anti-corrosion function according to claim 1, wherein the fan is a positive pressure fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920534324.1U CN210832051U (en) | 2019-04-19 | 2019-04-19 | Acetylene soot blowing system with anti-corrosion function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920534324.1U CN210832051U (en) | 2019-04-19 | 2019-04-19 | Acetylene soot blowing system with anti-corrosion function |
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| Publication Number | Publication Date |
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| CN210832051U true CN210832051U (en) | 2020-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920534324.1U Active CN210832051U (en) | 2019-04-19 | 2019-04-19 | Acetylene soot blowing system with anti-corrosion function |
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| CN (1) | CN210832051U (en) |
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- 2019-04-19 CN CN201920534324.1U patent/CN210832051U/en active Active
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