CN218469062U

CN218469062U - Steam recycling system for steam soot blowing of waste incineration power plant

Info

Publication number: CN218469062U
Application number: CN202222556029.0U
Authority: CN
Inventors: 颜武岳; 刘振东; 李旭; 刘哲; 王勋
Original assignee: Puxiang Bioenergy Co ltd
Current assignee: Puxiang Bioenergy Co ltd
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-02-10
Anticipated expiration: 2032-09-26

Abstract

The utility model discloses a steam recycle system of msw incineration power plant steam soot blowing, including consecutive even row's flash tank, decide and arrange flash tank and blowwell, blow grey steam and send into even row flash tank through first pipeline, even be equipped with on arranging the flash tank and be used for the steam outlet that links to each other with the oxygen-eliminating device, even arrange the flash tank lower part and be equipped with hydrophobic export, hydrophobic export passes through valve automatically regulated subassembly and links to each other with deciding to arrange the flash tank, even the top of arranging the flash tank is equipped with the determine module, the determine module is used for detecting even water level volume and feedback water level signal to valve automatically regulated subassembly in arranging the flash tank, valve automatically regulated subassembly received water level signal and adjusting valve size of opening and shutting. The utility model has the advantages of safety and environmental protection, effective environmental protection and improvement of the resource utilization rate.

Description

Steam recycling system for steam soot blowing of waste incineration power plant

Technical Field

The utility model relates to a waste incineration power plant waste heat utilization technology field refers in particular to a steam recycle system that waste incineration power plant steam blown ash.

Background

In a power plant, in order to keep the heating surface of a boiler clean, reduce smoke discharge loss, prevent overtemperature of a metal pipe wall and coking in the boiler and improve the efficiency of the boiler and the safety of a unit, soot blowing must be performed on the heating surface of the boiler regularly, and each boiler needs to perform steam soot blowing for many times every day, in the steam soot blowing heating pipe and soot blowing process of the boiler, drainage and partial steam are discharged to a fixed-discharge flash tank through a drainage pipeline, so that the temperature of the fixed-discharge flash tank and a blowdown cooling well reaches 80-100 ℃, steam is continuously discharged during soot blowing, a blowdown cooling well lifting pump hardly pumps high-temperature hot water, so that the hot water often overflows to a plant area to cause thermal pollution, the risk of scalding workers nearby outside a boiler plant is easily caused, the long-term overflow of the hot water also affects the ecological environment of the power plant, and the direct discharge of the steam after soot blowing is accompanied by heat in a waste water pool or the environment also causes energy waste. How to solve the safety problem and the problem of energy waste caused by the soot blowing of the boiler steam has very important significance for the power plant.

SUMMERY OF THE UTILITY MODEL

To the technical problem that prior art exists, the utility model provides a steam recycle system that rubbish incineration power plant steam blown ash of safety ring protects, can effectively protect the environment and can improve the utilization ratio of resource.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides a steam recycle system of msw incineration power plant steam soot blowing, includes consecutive row's flash tank, surely arranges flash tank and blowoff well, and soot blowing steam sends into even row flash tank through first pipeline, even be equipped with on arranging the flash tank and be used for the steam outlet that links to each other with the oxygen-eliminating device, even arrange the flash tank lower part and be equipped with hydrophobic export, hydrophobic export links to each other with surely arranging the flash tank through valve automatically regulated subassembly, even the top of arranging the flash tank is equipped with detecting element, detecting element is used for detecting even water level volume and feedback water level signal to valve automatically regulated subassembly in arranging the flash tank, valve automatically regulated subassembly receives water level signal and adjusting valve size of opening and shutting.

As a further improvement of the utility model: and control valves are arranged at the inlet end and the outlet end which are close to the automatic valve adjusting assembly.

As a further improvement of the utility model: the outlet end of the continuous discharge flash tank is also connected with the bypass valve.

As a further improvement of the utility model: the oxygen remover also comprises a second pipeline, and the second pipeline is connected with the oxygen remover.

As a further improvement of the utility model: the second pipeline is provided with a first branch pipeline and a second branch pipeline, the first branch pipeline is connected with the deaerator, and the second branch pipeline is connected with the sewage well through the steam trap.

As a further improvement of the utility model: the device also comprises a third pipeline, a drainage flash tank and a drainage tank which are sequentially connected, wherein a port connected with the deaerator is arranged on the drainage tank.

As a further improvement of the utility model: and the first pipeline, the second pipeline and the third pipeline are all provided with a control main valve.

Compared with the prior art, the utility model has the advantages of:

the utility model discloses a steam recycle system of steam soot blowing of msw incineration power plant, including consecutive row's flash tank, surely arrange flash tank and blowoff well, blow the soot steam and send into even row flash tank through first pipeline, steam enters into even after arranging the flash tank, because the effect of the dilatation of arranging the flash tank even, the pressure of steam reduces, and saturated temperature reduces, can release a large amount of heats, can heat the hydrophobic heating of arranging in the flash tank even this moment and arrange steam to the oxygen-eliminating device. The detection assembly is arranged on the continuous discharge flash tank, and when the detection assembly detects that the water level of the continuous discharge flash tank is at a high level, the detection assembly feeds back a signal to the valve automatic adjusting assembly to automatically increase the valve opening of the valve automatic adjusting assembly, so that the hydrophobic amount of the continuous discharge flash tank is increased. When the detection assembly detects that the water level of the continuous-discharge flash tank is at a low level, the detection assembly can feed back a signal to the automatic valve adjusting assembly to reduce the valve opening of the automatic valve adjusting assembly and reduce the water drainage amount of the continuous-discharge flash tank, so that the effect of steam-water separation in the continuous-discharge flash tank is achieved, the steam heat is fully utilized, the utilization rate of steam is improved, and resource waste is avoided.

Drawings

Fig. 1 is a schematic structural diagram of the present invention in an embodiment.

Illustration of the drawings:

1. a connected flash tank; 2. a fixed-row flash tank; 3. a sewage draining well; 4. a first conduit; 5. a deaerator; 6. a valve automatic adjustment assembly; 7. a detection component; 8. a control valve; 9. a bypass valve; 10. a second conduit; 101. a first branch conduit; 102. a second branch conduit; 11. a steam trap; 12. a third pipeline; 13. a drain flash tank; 14. a drain tank; 15. a control master valve; 16. a drain pump.

Detailed Description

The invention will be further described with reference to the drawings and specific preferred embodiments without limiting the scope of the invention.

In the description of the present invention, it is to be understood that the terms "lateral," "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientation or positional relationship indicated in the drawings for convenience of description and simplicity of description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered as limiting.

Furthermore, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby features defined as "first", "second" may explicitly or implicitly include one or more such features, in the description of the invention "plurality" means two or more unless explicitly and specifically defined otherwise.

The invention will be described in further detail with reference to the drawings and specific embodiments.

As shown in fig. 1, this embodiment discloses a steam recycle system that msw of msw incineration power plant steam blown, including consecutive row flash tank 1, flash tank 2 and blowwell 3 surely, blow the soot steam and send into consecutive row flash tank 1 through first pipeline 4, be equipped with the steam outlet that is used for linking to each other with oxygen-eliminating device 5 on the consecutive row flash tank 1, consecutive row flash tank 1 lower part is equipped with hydrophobic export, hydrophobic export links to each other with the fixed row flash tank 2 through valve automatically regulated subassembly 6, consecutive row flash tank 1's top is equipped with detecting element 7, detecting element 7 is used for detecting the water level volume in the consecutive row flash tank 1 and feeds back water level signal to valve automatically regulated subassembly 6, valve automatically regulated subassembly 6 receives water level signal and adjusts the valve size of opening and shutting.

This steam recycle system that msw incineration power plant steam blown ash in implementation, including consecutive row flash vessel 1, arrange flash vessel 2 and blowoff well 3 certainly, blow ash steam and send into even row flash vessel 1 through first pipeline 4, steam enters into even row flash vessel 1 after, because the effect of the dilatation of even arranging flash vessel 1, the pressure of steam reduces, saturation temperature reduces, can release a large amount of heats, can become steam to arrange to oxygen-eliminating device 5 to the hydrophobic heating in the flash vessel 1 of even arranging this moment. The detection assembly 7 is installed on the continuous-discharge flash tank 1, when the detection assembly 7 detects that the water level of the continuous-discharge flash tank 1 is at a high level, the detection assembly 7 feeds back a signal to the valve automatic adjusting assembly 6 to automatically increase the valve opening of the continuous-discharge flash tank, and the hydrophobic amount of the continuous-discharge flash tank 1 is increased. When the detection component 7 detects that the water level of the continuous-discharge flash tank 1 is at a low level, the detection component 7 can feed back a signal to the valve automatic adjusting component 6 to reduce the valve opening of the valve automatic adjusting component 6 and reduce the hydrophobic amount in the continuous-discharge flash tank 1, so that the effect of steam-water separation in the continuous-discharge flash tank 1 is achieved, the steam heat is fully utilized, the utilization rate of steam is improved, and resource waste is avoided.

In this embodiment, the inlet end and the outlet end near the valve automatic adjusting assembly 6 are both provided with a control valve 8, and the continuous discharge flash tank 1 further comprises a bypass valve 9, and the outlet end is further connected with the bypass valve 9. The control valves 8 are arranged in the front and the back of the automatic valve adjusting assembly 6, and when the automatic valve adjusting assembly 6 is overhauled, the control valves 8 in the front and the back of the automatic valve adjusting assembly 6 are turned off, so that the automatic valve adjusting assembly 6 can be overhauled. When the automatic valve adjusting assembly 6 is used for maintenance, the drained water of the continuous discharge flash tank 1 can be discharged through the bypass valve 9, and the maintenance system can still work normally.

In this embodiment, the oxygen remover further comprises a second pipeline 10, and the second pipeline 10 is connected with the oxygen remover 5. The second pipeline 10 is provided with a first branch pipeline 101 and a second branch pipeline 102, the first branch pipeline 101 is connected with the deaerator 5, and the second branch pipeline 102 is connected with the sewage well 3 through the steam trap 11. When parts such as the flash tank 1 that even arrange of first pipeline 4 intercommunication, arrange flash tank 2 surely break down and need overhaul, steam blows the hydrophobic steam and can deliver to oxygen-eliminating device 5 through first branch pipeline 101, for preventing to take place the water hammer in the second pipeline 10, installs a steam trap 11 additional at second branch pipeline 102, and steam becomes hydrophobic to connect to on going the blowpit 3 behind steam trap 11.

In this embodiment, the steam trap further includes a third pipeline 12, a drain flash tank 13, and a drain tank 14, which are connected in sequence, and the drain tank 14 is provided with a port connected to the deaerator 5. The steam soot blowing drainage enters a drainage flash tank 13 through a third pipeline 12, the steam after flash evaporation enters a drainage tank 14, the steam is pumped to a deaerator 5 by a drainage pump 16 to be recovered after the test is qualified, and the steam is discharged into the atmosphere through the drainage flash tank 13. Through setting up a plurality of pipelines, can realize high-efficient recycle to steam and hydrophobic after the steam blows the ash, and when the part on one of them pipeline broke down or need overhaul, this system still can utilize other pipelines to realize steam or hydrophobic recycle.

In this embodiment, the first pipeline 4, the second pipeline 10 and the third pipeline 12 are all provided with a control main valve 15, and when a component on a certain pipeline has a fault or needs to be repaired, the pipeline can be closed through the control main valve 15 on each pipeline.

The steam recycle system in this embodiment realizes the abundant effective utilization of steam, hydrophobic behind the boiler steam soot blowing, has solved the problem of the thermal pollution that the steam soot blowing brought among the prior art, can effectively protect the environment, improves the security in the factory, and effectively improves the utilization ratio of resource.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, a plurality of modifications and decorations without departing from the principle of the present invention should be considered as the protection scope of the present invention.

Claims

1. The utility model provides a steam recycle system of msw incineration power plant steam soot blowing, its characterized in that, including consecutive row flash tank (1), surely arrange flash tank (2) and blowpit (3), blow the soot steam and send into through first pipeline (4) and even arrange flash tank (1), be equipped with on even arranging flash tank (1) and be used for the steam outlet that links to each other with oxygen-eliminating device (5), even arrange flash tank (1) lower part and be equipped with hydrophobic export, hydrophobic export links to each other with surely arranging flash tank (2) through valve automatically regulated subassembly (6), the top of even arranging flash tank (1) is equipped with determine module (7), determine module (7) are used for detecting even arrange flash tank (1) interior water level volume and feed back water level signal to valve automatically regulated subassembly (6), valve automatically regulated subassembly (6) receive water level signal and adjust the valve size of opening and shutting.

2. The steam recycling system for steam sootblowing of a refuse incineration power plant according to claim 1, characterized in that control valves (8) are provided near both the inlet end and the outlet end of the automatic valve adjustment assembly (6).

3. The steam recycling system for steam sootblowing of a refuse incineration power plant according to claim 2, characterized by further comprising a bypass valve (9), wherein the outlet end of the continuous discharge flash tank (1) is further connected with the bypass valve (9).

4. The steam recycling system for steam sootblowing of a waste incineration plant according to claim 1, further comprising a second pipe (10), the second pipe (10) being connected to a deaerator (5).

5. The steam recycling system for steam sootblowing of a waste incineration power plant according to claim 4, characterized in that the second pipeline (10) is provided with a first branch pipeline (101) and a second branch pipeline (102), the first branch pipeline (101) is connected with the deaerator (5), and the second branch pipeline (102) is connected with the sewage well (3) through a steam trap (11).

6. The steam recycling system for steam sootblowing of a waste incineration power plant according to claim 5, further comprising a third pipeline (12), a drain flash tank (13) and a drain tank (14) which are connected in sequence, wherein a port connected with the deaerator (5) is arranged on the drain tank (14).

7. The steam recycling system for steam sootblowing of a refuse burning power plant according to any one of claims 1 to 6, characterized in that the first pipe (4), the second pipe (10) and the third pipe (12) are all provided with a control main valve (15).