CN219222455U - Shock wave soot blowing system for waste heat boiler in plateau region - Google Patents
Shock wave soot blowing system for waste heat boiler in plateau region Download PDFInfo
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- CN219222455U CN219222455U CN202121469603.8U CN202121469603U CN219222455U CN 219222455 U CN219222455 U CN 219222455U CN 202121469603 U CN202121469603 U CN 202121469603U CN 219222455 U CN219222455 U CN 219222455U
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- acetylene gas
- purified air
- pipeline
- heat boiler
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Abstract
The utility model discloses a shock wave soot blowing system for an exhaust-heat boiler in a plateau region, which comprises the following components: the device comprises a compressed and purified air pipeline and an acetylene gas pipeline, wherein the compressed and purified air pipeline and the acetylene gas pipeline are connected with a mixing tank; a compressed air pressure reducing valve, a flowmeter and a compressed air check valve are sequentially arranged on the compressed and purified air pipeline; an acetylene gas pressure reducing valve, a flowmeter and an acetylene gas check valve are sequentially arranged on the acetylene gas pipeline; the mixing tank is connected with the mixing distributor; the mixing distributor is connected with eight pulse tanks; each pulse tank is connected with a nozzle through an injection pipeline. The system saves production cost, ensures environmental protection requirements, is beneficial to safe, stable and economic operation of the boiler, has good economic benefit, and ensures the reliable safety of the system in operation by a self-checking program.
Description
Technical Field
The utility model relates to the technical field of boilers, in particular to a shock wave soot blowing system for an exhaust-heat boiler in a plateau area.
Background
The main function of the existing DMTO device waste heat boiler is to recycle heat of catalyst regenerated combustion Jiao Fangre and regenerated flue gas waste heat, and medium-pressure superheated steam is generated. The exhaust-heat boiler soot blower originally arranged in the DMTO device uses fuel gas (the main component is methane) and compressed purified air to mix, and the exhaust-heat boiler soot blower is ignited by an ignition device to generate pulses, so that the effect of blowing the catalyst is achieved. However, as the altitude of the plateau is 2810 m, the oxygen content is about 74%, the oxygen content concentration is low, and the explosion limit range of methane is smaller, if the original soot blowing system in the waste heat boiler of the DMTO device is used in the high altitude area, the explosion is difficult to occur, the required effect cannot be achieved, a large amount of catalyst is easily attached to the wall of a hearth, the smoke discharging temperature is too high, the thermal efficiency of the boiler is reduced, and therefore, a shock wave soot blowing device suitable for the plateau waste heat boiler needs to be designed to solve the problem.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model provides a shock wave soot blowing system for a waste heat boiler in a plateau area, which is used for effectively solving the problems of insufficient oxygen content in the waste heat boiler in a high-altitude area and smaller methane explosion limit range.
In order to achieve the purpose of the utility model, the utility model adopts the following technical scheme: a shock wave sootblowing system for a waste heat boiler in a plateau region, comprising: the device comprises a compressed and purified air pipeline and an acetylene gas pipeline, wherein the compressed and purified air pipeline and the acetylene gas pipeline are connected with a mixing tank; the compressed and purified air pipeline is sequentially provided with a compressed and purified air pressure reducing valve, a compressed and purified air flowmeter and a compressed and purified air check valve; an acetylene gas pressure reducing valve, an acetylene gas flowmeter and an acetylene gas check valve are sequentially arranged on the acetylene gas pipeline; the mixing tank is connected with the mixing distributor; the mixing distributor is connected with eight pulse tanks; each pulse tank is connected with a nozzle through an injection pipeline.
Further, the compressed and purified air pipeline and the acetylene gas pipeline are respectively provided with a compressed and purified air electromagnetic valve and an acetylene gas electromagnetic valve; the mixing distributor comprises a distributing pump and an igniter; the compressed and purified air electromagnetic valve, the acetylene gas electromagnetic valve, the igniter and the distribution pump are connected with the controller.
Further, the mixing distributor is equally spaced from the eight pulse tanks.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, the shock wave soot blowing system of the waste heat boiler for acetylene gas injection can effectively remove the catalyst attached to the furnace tube, reduce the exhaust gas temperature, improve the thermal efficiency of the boiler, save the production cost, ensure the environmental protection requirement, facilitate the safe, stable and economic operation of the boiler, have good economic benefit, and ensure the reliability and safety of the operation of the system by a self-checking program.
Drawings
FIG. 1 is a schematic diagram of the structural connection of a shock wave soot blowing system for a waste heat boiler in a plateau region of the present utility model;
in the figure: the device comprises a controller-1, a compressed and purified air pipeline-2, an acetylene gas pipeline-3, a compressed and purified air pressure reducing valve-4, an acetylene gas pressure reducing valve-5, a compressed and purified air electromagnetic valve-6, an acetylene gas electromagnetic valve-7, a compressed and purified air flowmeter-8, an acetylene gas flowmeter-9, a compressed and purified air check valve-10, an acetylene gas check valve-11, a mixing tank-12, a mixing distributor-13, a distribution pump-1301, an igniter-1302, a pulse tank-14 and a nozzle-15.
Detailed Description
The drawings in the embodiments of the present utility model will be combined; the technical scheme in the embodiment of the utility model is clearly and completely described:
as shown in figure 1, the shock wave soot blowing system for the waste heat boiler in the plateau region comprises a compressed and purified air pipeline 2 and an acetylene gas pipeline 3, wherein the compressed and purified air pipeline 2 and the acetylene gas pipeline 3 are connected with a mixing tank 12, and air and acetylene gas are fully mixed; the compressed and purified air pipeline 2 is provided with a compressed and purified air pressure reducing valve 4, a compressed and purified air flowmeter 8 and a compressed and purified air check valve 10 in sequence; the acetylene gas pipeline is sequentially provided with the acetylene gas pressure reducing valve 5, the acetylene gas flowmeter 9 and the acetylene gas check valve 11, so that the catalyst attached to the furnace tube is effectively removed when the acetylene gas is put into use, the exhaust gas temperature is reduced, and the thermal efficiency of the boiler is improved; the mixing tank 12 is connected with a mixing distributor 13 and discharges mixed gas; the mixing distributor 13 is connected with eight pulse tanks 14; each of said pulse tanks 14 is connected to a nozzle 15 through an injection line.
Specifically, the compressed and purified air pipeline 2 and the acetylene gas pipeline 3 are respectively provided with a compressed and purified air electromagnetic valve 6 and an acetylene gas electromagnetic valve 7; the mixing dispenser 13 includes a dispensing pump 1301 and an igniter 1302; the compressed and purified air electromagnetic valve 6, the acetylene gas electromagnetic valve 7, the igniter 1302 and the distribution pump 1301 are connected with the controller 1, so that the control of workers is facilitated, and meanwhile, the reliability and the safety of the system operation are ensured by adding a self-checking program in the controller;
specifically, the mixing distributor 13 is equal to the eight pulse tanks in distance.
When the system is used, purified air and acetylene gas are injected through the compressed purified air pipeline 2 and the acetylene gas pipeline 3, the two gases enter the mixing tank 12 at the same time and are mixed, the two gases enter the mixing distributor 13 to be ignited and fully combusted, then the distribution pump 1301 is connected with the nozzle 15 arranged in a furnace wall through the injection pipeline to blow out ash, the controller 1 is connected with the compressed purified air electromagnetic valve 6, the acetylene gas electromagnetic valve 7 and the mixing distributor 13, a self-checking program is arranged in the controller, manual control is convenient, the reliability and the safety of the system operation are also ensured, the catalyst attached to the furnace tube can be effectively removed by adopting the acetylene gas injection waste heat boiler shock wave ash blowing system, the smoke exhaust temperature is reduced to 182 ℃ after optimization, and the superheated steam yield of 4.0Mpa per hour is 23.7t/h, 4.0Mpa superheated steam is produced more per year about 49600t.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art should be able to apply equivalents and modifications according to the technical scheme and the modified concept of the present utility model within the scope of the present utility model.
Claims (2)
1. A shock wave sootblowing system for a waste heat boiler in a plateau region, comprising: the device is characterized in that the compressed and purified air pipeline (2) and the acetylene gas pipeline (3) are connected with a mixing tank (12); the compressed and purified air pipeline (2) is sequentially provided with a compressed and purified air pressure reducing valve (4), a compressed and purified air flowmeter (8) and a compressed and purified air check valve (10); an acetylene gas pressure reducing valve (5), an acetylene gas flowmeter (9) and an acetylene gas check valve (11) are sequentially arranged on the acetylene gas pipeline; the mixing tank (12) is connected with a mixing distributor (13); the mixing distributor (13) is connected with eight pulse tanks (14); each pulse tank (14) is connected with a nozzle (15) through an injection pipeline; the compressed and purified air pipeline (2) and the acetylene gas pipeline (3) are respectively provided with a compressed and purified air electromagnetic valve (6) and an acetylene gas electromagnetic valve (7); the mixing distributor (13) comprises a distributing pump
(1301) And an igniter (1302); the compressed and purified air electromagnetic valve (6), the acetylene gas electromagnetic valve (7), the igniter (1302) and the distribution pump (1301) are connected with the controller (1).
2. A shock wave soot blowing system for a waste heat boiler in a plateau region as claimed in claim 1, wherein: the distances from the mixing distributor (13) to the eight pulse tanks are equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121469603.8U CN219222455U (en) | 2021-06-30 | 2021-06-30 | Shock wave soot blowing system for waste heat boiler in plateau region |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121469603.8U CN219222455U (en) | 2021-06-30 | 2021-06-30 | Shock wave soot blowing system for waste heat boiler in plateau region |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219222455U true CN219222455U (en) | 2023-06-20 |
Family
ID=86734862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121469603.8U Active CN219222455U (en) | 2021-06-30 | 2021-06-30 | Shock wave soot blowing system for waste heat boiler in plateau region |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219222455U (en) |
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2021
- 2021-06-30 CN CN202121469603.8U patent/CN219222455U/en active Active
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