Boiler fixed drainage and desulfurization tower inlet cleaning combined system

Abstract

The embodiment of the utility model provides a boiler regular drainage and desulfurization tower inlet cleaning combined system which comprises a desulfurization tower, a boiler regular drainage pipeline, a flue and a spraying device, the desulfurization tower comprises an inlet, and the boiler regular drainage pipeline is connected with the inlet; the flue is connected with the inlet; the spraying device is arranged on the boiler fixed-row pipeline and close to the inlet, and the spraying direction of the spraying device faces the inlet; while the inlet of the desulfurizing tower is optimally cleaned, the water resource waste of the fixed drainage of the boiler is effectively reduced, the cleaning operation efficiency is greatly improved, cleaning is not carried out, the danger of personnel operation is reduced, the possibility of blockage of the flue removal channel and the inlet of the desulfurizing tower is reduced to the greatest extent, the production efficiency is effectively improved, and the production process is stabilized.

Description

TECHNICAL FIELD

[0001] The utility model relates to industrial waste gas purification field technical field, concretely relates to a kind of boiler fixed discharge water and desulfurization tower entrance cleaning system for being used. BACKGROUND

[0002] A large amount of fixed discharge water is generated during the operation of a boiler, which contains various impurities such as salt, minerals and possible pollutants. Traditionally, these fixed discharge waters are often treated as waste water, which not only leads to waste of water resources, but also increases the risk of treatment cost and environmental pollution. Therefore, finding an effective and environmentally friendly fixed discharge water treatment method has become a problem to be solved.

[0003] During the long-term operation of the desulfurization tower, the inlet is carried by the flue gas with a certain amount of dust, which reacts with calcium sulfate and calcium sulfite in the liquid droplets to form hard scale and various impurities, which not only affects its working efficiency, but also may cause equipment failure. However, the traditional removal method often needs to be stopped for production, which affects the continuity of production; at the same time, the use of a large amount of water and chemicals also increases the cost and environmental pressure. The traditional desulfurization tower inlet cleaning method currently needs to be stopped, which means that the production line will be interrupted, which has a significant impact on production efficiency. Some traditional cleaning methods may not be able to completely remove the scale and pollutants at the inlet of the desulfurization tower, resulting in poor cleaning effect and the need for multiple cleaning to achieve the desired effect. When cleaning the inlet of the desulfurization tower manually, workers need to enter the equipment, which may bring safety risks such as falling from a height and poisoning. SUMMARY

[0004] The embodiment of the utility model provides a kind of boiler fixed discharge water and desulfurization tower entrance cleaning system for use, it can optimize cleaning the inlet of desulfurization tower while effectively reducing the waste of water resources of boiler fixed discharge water, substantially improve cleaning efficiency, achieve cleaning without production, reduce the danger of personnel operation, minimize the possibility of desulfurization tower and desulfurization tower inlet blockage, effectively improve production efficiency, stabilize production process.

[0005] In the first aspect, the embodiment of the utility model provides a kind of boiler fixed discharge water and desulfurization tower entrance cleaning system for use, it includes: desulfurization tower, the desulfurization tower includes inlet;

[0006] Boiler fixed discharge pipeline, the boiler fixed discharge pipeline is connected with the inlet;

[0007] Flue, the flue is connected with the inlet;

[0008] Spraying device, the spraying device is arranged on the boiler fixed discharge pipeline and is close to the inlet, and the spraying direction of the spraying device is arranged towards the inlet.

[0009] In an embodiment, the spraying device comprises at least one spraying pipe.

[0010] In an embodiment, the pressure of the boiler blowdown water in the boiler blowdown pipeline ranges from 2.8 MPa to 3 MPa, including 2.8 MPa, 2.9 MPa or 3 MPa.

[0011] In an embodiment, the boiler blowdown water and desulfurization tower inlet cleaning system further comprises a check valve arranged on the boiler blowdown pipeline.

[0012] In an embodiment, the boiler blowdown water and desulfurization tower inlet cleaning system further comprises a blowdown water container connected with the boiler blowdown pipeline.

[0013] In an embodiment, the spraying device comprises at least two spraying pipes, one of which is connected with the blowdown water container and has a spraying direction towards the flue.

[0014] In an embodiment, the blowdown water container is further provided with a pressurizing pump.

[0015] In the embodiment of the present application, the spraying device is arranged on the boiler blowdown pipeline and close to the inlet, and has a spraying direction towards the inlet, so that the boiler blowdown water can flush the inlet, thereby improving the technical problems of water resource waste, production line interruption, low safety factor and poor cleaning effect of the traditional cleaning method. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0017] Figure 1 is a structural schematic diagram of the boiler blowdown water and desulfurization tower inlet cleaning system provided by the embodiment of the present application;

[0018] Marked with: desulfurization tower 1, inlet 1a, boiler blowdown pipeline 2, flue 3, spraying device 4, spraying pipe 41, check valve 5, blowdown water container 6, pressurizing pump 61, induced draft fan 7. DETAILED DESCRIPTION

[0019] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts under the premise that no creative efforts are made, belong to the scope of protection of the present application. In addition, it should be understood that the specific implementation described herein is only used to illustrate and explain the present application, and is not used to limit the present application. In the present application, unless stated otherwise, the orientation words such as "upper" and "lower" generally refer to the upper and lower of the device in the actual use or working state, and specifically refer to the direction of the drawing in the drawing; and "inner" and "outer" refer to the outline of the device.

[0020] Please refer to Figure 1 The embodiment of the present application provides a boiler fixed drainage and desulfurization tower inlet cleaning combined system, which comprises: a desulfurization tower 1, a boiler fixed drainage pipeline 2, a flue 3 and a spraying device 4, the desulfurization tower 1 comprises an inlet 1a, the boiler fixed drainage pipeline 2 is connected to the inlet 1a; the flue 3 is connected to the inlet 1a; the spraying device 4 is arranged on the boiler fixed drainage pipeline 2 and is arranged close to the inlet 1a, and the spraying direction of the spraying device 4 is arranged to face the inlet 1a.

[0021] In the embodiment of the present application, the spraying device 4 is arranged on the boiler fixed drainage pipeline 2 and is arranged close to the inlet 1a, and the spraying direction of the spraying device 4 is arranged to face the inlet 1a, so that the boiler fixed drainage can flush the inlet 1a, thereby improving the technical problems of water resource waste, production line interruption, low safety factor and poor cleaning effect of the traditional cleaning method of the boiler fixed drainage. The cleaning of the inlet 1a of the desulfurization tower 1 is realized without stopping production. The traditional cleaning method often needs to stop production, which will affect the production efficiency. It can be understood that the present application uses the boiler fixed drainage as a cleaning water source, which can clean without stopping production, greatly improving the production efficiency. The boiler fixed drainage is usually regarded as waste water, but the present application uses it as a cleaning water source, which not only reduces the consumption of water resources, but also avoids the discharge of waste water, thereby realizing the effective utilization of water resources and environmental protection. The scale and pollutants on the inlet 1a of the desulfurization tower 1 are effectively removed, and the running cycle of the equipment is prolonged. The heat and dissolved substances in the boiler fixed drainage also help to improve the cleaning effect.

[0022] In an embodiment, the spraying device 4 comprises at least one spraying pipe 41.

[0023] In the spraying process, four spraying pipes 41 can also be arranged to spray the inlet 1a in all directions, which can more effectively remove the hard scale and various impurities on the inlet 1a. The water sprayed by the spraying pipe 41 is columnar, which can effectively form an impact force, which is conducive to removing the hard scale and various impurities on the inlet 1a.

[0024] In an embodiment, the pressure of the boiler blowdown water in the boiler blowdown pipeline 2 is in the range of 2.8 MPa to 3 MPa, including 2.8 MPa, 2.9 MPa or 3 MPa.

[0025] It can be understood that the pressure of the boiler blowdown water in the boiler blowdown pipeline 2 is in the range of 2.8 MPa to 3 MPa, including 2.8 MPa, 2.9 MPa or 3 MPa, which can form an effective impact force to remove the hard scale and various impurities, and can also avoid damaging the desulfurization tower 1 and other equipment due to excessive impact force.

[0026] In an embodiment, the boiler blowdown water and desulfurization tower 1 inlet 1a cleaning system further comprises a check valve 5 arranged on the boiler blowdown pipeline 2.

[0027] The check valve 5 is installed to prevent flue gas from entering the boiler blowdown pipeline 2 when cleaning the desulfurization tower 1 inlet 1a.

[0028] In an embodiment, an induced draft fan 7 is arranged in the flue 3, which can pressurize the flue gas to facilitate the flow of the flue gas.

[0029] In an embodiment, the boiler blowdown water and desulfurization tower 1 inlet 1a cleaning system further comprises a blowdown water container 6 connected with the boiler blowdown pipeline 2.

[0030] The blowdown water container 6 is arranged to collect excess boiler blowdown water.

[0031] In an embodiment, the spray device 4 comprises at least two spray pipes 41, one of which is connected with the blowdown water container and arranged with a spraying direction towards the flue 3.

[0032] It can be understood that one of the spray pipes 41 is connected with the blowdown water container and arranged with a spraying direction towards the flue 3, and the water sprayed by the spray pipe 41 can play a dust-reducing role on the dust carried in the flue gas. In order to achieve better dust-reducing effect, the shape of the water sprayed by the spray pipe 41 can be mist, net or curtain. In addition, the boiler blowdown water is discharged periodically, and by connecting the spray pipe 41 with the blowdown water container, the spray pipe 41 can always be in a spraying state, thereby achieving better dust-reducing effect. Further, the amount of hard scale and various impurities formed by the reaction of dust and calcium sulfate, calcium sulfite in the droplets of the desulfurization tower 1 is reduced.

[0033] In an embodiment, the blowdown water container 6 is further provided with a pressurizing pump 61.

[0034] The pressurizing pump 61 can pressurize the blowdown water to achieve better flushing effect.

[0035] The above has carried out the detailed introduction to the embodiment of the utility model, the principle and implementation mode of the utility model have been described in this article by applying specific examples, the above embodiment explanation is only for helping understanding the method and its core thought of the utility model; simultaneously, for the technical personnel in the art, according to the thought of the utility model, there will be changes in specific implementation mode and application range, and the above is described, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A boiler blowdown and desulfurization tower inlet cleaning combined system, characterized in that, Comprising: a desulfurization tower, the desulfurization tower comprising an inlet; a boiler blowdown pipe, the boiler blowdown pipe connecting the inlet; a flue, the flue connecting the inlet; a spraying device, the spraying device being arranged on the boiler blowdown pipe and close to the inlet, the spraying direction of the spraying device being arranged towards the inlet.

2. The combined system for boiler blowdown and desulfurizing tower inlet cleaning according to claim 1, characterized in that, The spraying device comprises at least one spraying pipe.

3. The combined system for boiler blowdown and desulfurizing tower inlet cleaning according to claim 1, characterized in that, The pressure of the boiler blowdown water in the boiler blowdown pipe ranges from 2.8 MPa to 3 MPa.

4. The combined boiler blowdown and desulfurization tower inlet cleaning system of claim 1, wherein, A non-return valve is further arranged on the boiler blowdown pipe.

5. The combined system for boiler blowdown and desulfurization tower inlet cleaning according to claim 1, characterized in that, A blowdown water container is further arranged, the blowdown water container being connected with the boiler blowdown pipe.

6. The combined boiler blowdown and desulfurization tower inlet cleaning system of claim 5, wherein, The spraying device comprises at least two spraying pipes, one of which is connected with the blowdown water container and the spraying direction of which is arranged towards the flue.

7. The combined system for boiler blowdown and desulfurization tower inlet cleaning according to claim 5, wherein A pressurizing pump is further arranged on the blowdown water container.

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