Desulfurization fabric compensator capable of prolonging service life and realizing on-line pressure plugging

Abstract

The utility model relates to a fabric compensator for desulfurization, which prolongs the service life and realizes on-line pressure plugging. The fabric compensator for desulfurization comprises a flue and a fabric compensator for desulfurization, the fabric compensator for desulfurization has the beneficial effects that the skin is additionally arranged outside the guide plate of the fabric compensator for desulfurization, so that flue gas can be effectively isolated from the external fabric compensator for desulfurization, the flue gas is prevented from being directly contacted with the fabric compensator for desulfurization, the corrosion of the fabric compensator for desulfurization is relieved, and the service life of the fabric compensator is prolonged; the flange of the fabric compensator for desulfurization is provided with two rows of screw holes, and when the fabric compensator for desulfurization is torn during operation, a new fabric compensator for desulfurization can be laid and mounted in a standby flange hole under the condition that the load of a unit is not reduced, so that the torn fabric compensator for desulfurization can be quickly, safely and efficiently blocked.

Description

Technical Field

[0001] This utility model relates to the field of thermal power technology, and in particular to a fabric compensator for desulfurization that extends service life and enables online pressurized sealing. Background Technology

[0002] Fabric compensators for desulfurization are widely used at the inlet and outlet of flue gas desulfurization and dust removal equipment in steel plants, smelters, petrochemical plants, thermal power plants, cement plants, and nuclear power plants. The exterior of the fabric compensator has a non-metallic skin, mainly made of fabric, which effectively protects the compensator and extends its service life to a certain extent.

[0003] After a period of use, the fabric compensator for desulfurization will be corroded and torn by sulfides. Once the fabric compensator for desulfurization tears during operation, the load must be reduced or even the unit must be shut down for repair. This is difficult, risky, and time-consuming, and also has a short service life. Therefore, there is an urgent need to design a desulfurization fabric compensator with a long service life that can be replaced without affecting the operation of the unit. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a fabric compensator for desulfurization that extends service life and enables online pressurized plugging.

[0005] This desulfurization fabric compensator, designed for extended service life and online pressurized plugging, includes a flue and a desulfurization fabric compensator. The desulfurization fabric compensator includes a first desulfurization fabric compensator and a second desulfurization fabric compensator. Openings are provided at both ends of the flue. The first desulfurization fabric compensator is installed between the flue pipes, and the flue runs through the inside of both the flue and the first desulfurization fabric compensator. The first desulfurization fabric compensator includes a guide plate, a skin, and a flue skin. The first desulfurization fabric compensator has flanges at both ends and a metal frame in the middle. The flanges have openings. The sidewall of the metal frame facing the flue is the inner wall, and the side facing outwards is the outer wall. Skins connect the outer walls of the metal frame, and flue skins connect the inner walls of the metal frame. An insulation sleeve is provided between the skins and the flue skin. A guide plate is welded to the inner wall of the metal frame. The second desulfurization fabric compensator is installed on the outer wall of the first desulfurization fabric compensator.

[0006] Preferably, the flanges at both ends of the first desulfurization fabric compensator are provided with two rows of openings, including spare openings; bolts are used to fix the other row of openings (excluding spare openings) and the openings of the flue pipe, and the first desulfurization fabric compensator is fixed to the flue pipe by bolts; the flanges at both ends of the second desulfurization fabric compensator are provided with openings.

[0007] Preferably, bolts are used to fix the spare hole and the opening of the second desulfurization fabric compensator through the hole, and the first desulfurization fabric compensator is fixed by the bolts and the second desulfurization fabric compensator.

[0008] Preferably, one side of the skin is attached to the outer wall of the metal frame, and the other side is attached to a pressure plate; the skin has openings at both ends, and the pressure plate has openings; the pressure plate and the skin are fixedly connected to the outer wall of the metal frame by bolts and nuts.

[0009] Preferably, one side of the flue skin is attached to the inner wall of the metal frame, and the other side is attached to a pressure plate; the flue skin has openings at both ends, and the pressure plate has openings; the pressure plate and the flue skin are fixedly connected to the inner wall of the metal frame by bolts and nuts.

[0010] Preferably, the flue pipe, the first desulfurization fabric compensator, and the second desulfurization fabric compensator have hollow internal structures. The hollow structures of the flue pipe and the first desulfurization fabric compensator are flue ducts, and the inner wall of the second desulfurization fabric compensator is attached to the outer wall of the first desulfurization fabric compensator.

[0011] The beneficial effects of this utility model are:

[0012] 1) By adding a skin to the outside of the desulfurization fabric compensator, this utility model can effectively isolate the flue gas from the external desulfurization fabric compensator, prevent the flue gas from directly contacting the desulfurization fabric compensator, alleviate the corrosion of the desulfurization fabric compensator, and extend the service life of the fabric compensator.

[0013] 2) The flange of this practical desulfurization fabric compensator is provided with two rows of screw holes. When the desulfurization fabric compensator tears during operation, a new desulfurization fabric compensator can be laid and installed into the spare flange hole without reducing the unit load, so as to quickly, safely and efficiently seal the torn desulfurization fabric compensator. Attached Figure Description

[0014] Figure 1 This is a cross-sectional view of the installation of a fabric compensator for desulfurization.

[0015] Figure 2 yes Figure 1 A magnified view of part A;

[0016] Figure 3 This is a cross-sectional view of the desulfurization fabric compensator after it has been torn and a new desulfurization fabric compensator has been installed.

[0017] Figure 4 yes Figure 3 A magnified view of part B;

[0018] Figure 5 This is a partial view of a fabric compensator used for desulfurization.

[0019] Explanation of reference numerals in the attached drawings: 1. Spare hole; 2. Flue; 3. Nut; 4. Bolt; 5. First desulfurization fabric compensator; 6. Second desulfurization fabric compensator; 7. Metal frame; 8. Skin; 9. Insulation sleeve; 10. Guide plate; 11. Pressure plate; 12. Flue skin; 13. Detailed Implementation

[0020] The present invention will be further described below with reference to embodiments. The description of the embodiments below is only for the purpose of helping to understand the present invention. It should be noted that, for those skilled in the art, several modifications can be made to the present invention without departing from the principle of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

[0021] As one embodiment, a desulfurization fabric compensator for extending service life and achieving online pressurized plugging is proposed, including a spare hole 1, a flue pipe 2, a flue 3, a nut 4, a bolt 5, a first desulfurization fabric compensator 6, a second desulfurization fabric compensator 7, a metal frame 8, a skin 9, an insulation sleeve 10, a guide plate 11, a pressure plate 12, and a flue skin 13.

[0022] like Figures 1 to 5 As shown, the desulfurization fabric compensator includes a first desulfurization fabric compensator 6 and a second desulfurization fabric compensator 7; the flue pipe 2 has openings at both ends; the first desulfurization fabric compensator 6 is installed between the flue pipes 2, and the flue duct 3 passes through the flue pipe 2 and the first desulfurization fabric compensator 6; the first desulfurization fabric compensator 6 includes a guide plate 11, a skin 9 and a flue duct skin 13; the first desulfurization fabric compensator 6 has flanges at both ends and a metal frame 8 in the middle; the flanges have openings; the side wall of the metal frame 8 facing the flue duct 3 is the inner wall, and the side facing outward is the outer wall; the skin 9 is connected between the outer walls of the metal frame 8, and the flue duct skin 13 is connected between the inner walls of the metal frame 8; an insulation sleeve 10 is provided between the skin 9 and the flue duct skin 13; the guide plate 11 is welded to the inner wall of the metal frame 8; the second desulfurization fabric compensator 7 is installed on the outer wall of the first desulfurization fabric compensator 6.

[0023] like Figures 1 to 4 As shown, the flanges at both ends of the first desulfurization fabric compensator 6 are provided with two rows of openings, including a spare hole 1; bolts 5 are fixed through the other row of openings excluding the spare hole 1 and the opening of the flue pipe 2, and the first desulfurization fabric compensator 6 is fixed to the flue pipe 2 by bolts 5; the flanges at both ends of the second desulfurization fabric compensator 7 are provided with openings; bolts 5 are fixed through the spare hole 1 and the opening of the second desulfurization fabric compensator 7, and the first desulfurization fabric compensator 6 is fixed by bolts 5 and the second desulfurization fabric compensator 7.

[0024] One side of the skin 9 is attached to the outer wall of the metal frame 8, and the other side is attached to the pressure plate 12; the skin 9 has openings at both ends, and the pressure plate 12 has openings; the pressure plate 12 and the skin 9 are fixedly connected to the outer wall of the metal frame 8 by bolts 5 and nuts 4.

[0025] The flue skin 13 is attached to the inner wall of the metal frame 8 on one side and to the pressure plate 12 on the other side; the flue skin 13 has openings at both ends and the pressure plate 12 has openings; the pressure plate 12 and the flue skin 13 are fixedly connected to the inner wall of the metal frame 8 by bolts 5 and nuts 4.

[0026] The flue pipe 2, the first desulfurization fabric compensator 6, and the second desulfurization fabric compensator 7 have hollow internal structures. The hollow structures of the flue pipe 2 and the first desulfurization fabric compensator 6 form the flue 3. The inner wall of the second desulfurization fabric compensator 7 is attached to the outer wall of the first desulfurization fabric compensator 6.

[0027] By adding a flue cover 13 to the outside of the guide plate 11 of the first desulfurization fabric compensator 6, the flue gas can be effectively isolated from the first desulfurization fabric compensator 6, preventing the flue gas from directly contacting the first desulfurization fabric compensator 6, alleviating the corrosion of the first desulfurization fabric compensator 6, and extending the service life of the first desulfurization fabric compensator 6.

[0028] The flange of the first desulfurization fabric compensator 6 is provided with two rows of screw holes. When the first desulfurization fabric compensator 6 tears during operation, the second desulfurization fabric compensator 7 can be laid and installed into the spare hole 1 without reducing the unit load, so as to quickly, safely and efficiently seal the torn first desulfurization fabric compensator 6.

[0029] When the first desulfurization fabric compensator 6 is torn, align the openings of the flanges at both ends of the second desulfurization fabric compensator 7 with the spare holes 1 of the first desulfurization fabric compensator 6, insert bolts 5 through the openings and spare holes 1, and secure them with nuts 4.

Claims

1. A fabric compensator for desulfurization that extends service life and enables online pressurized plugging, characterized in that, include: Flue and desulfurization fabric compensator; the desulfurization fabric compensator includes a first desulfurization fabric compensator and a second desulfurization fabric compensator; openings are provided at both ends of the flue; the first desulfurization fabric compensator is installed between the flue pipes, and the flue passes through the flue pipes and the first desulfurization fabric compensator; the first desulfurization fabric compensator includes a guide plate, a skin, and a flue skin; the first desulfurization fabric compensator has flanges at both ends and a metal frame in the middle; the flanges have openings; the side wall of the metal frame facing the flue is the inner wall, and the side facing outward is the outer wall; skins are connected between the outer walls of the metal frame, and flue skins are connected between the inner walls of the metal frame; an insulation sleeve is provided between the skin and the flue skin; a guide plate is welded to the inner wall of the metal frame; the second desulfurization fabric compensator is installed on the outer wall of the first desulfurization fabric compensator.

2. The desulfurization fabric compensator for extending service life and achieving online pressurized plugging as described in claim 1, characterized in that, The flanges at both ends of the first desulfurization fabric compensator are provided with two rows of openings, including spare openings; bolts are used to fix the other row of openings (excluding spare openings) and the openings of the flue pipe. The first desulfurization fabric compensator is fixed to the flue pipe by bolts; the flanges at both ends of the second desulfurization fabric compensator are provided with openings.

3. The desulfurization fabric compensator for extending service life and achieving online pressurized plugging as described in claim 2, characterized in that, The spare hole and the opening of the second desulfurization fabric compensator are fixed with bolts through them. The first desulfurization fabric compensator is fixed by the bolts and the second desulfurization fabric compensator.

4. The desulfurization fabric compensator for extending service life and achieving online pressurized plugging as described in claim 1, characterized in that, One side of the skin is attached to the outer wall of the metal frame, and the other side is attached to a pressure plate; the skin has openings at both ends, and the pressure plate has openings; the pressure plate and the skin are fixedly connected to the outer wall of the metal frame by bolts and nuts.

5. The desulfurization fabric compensator for extending service life and achieving online pressurized plugging as described in claim 1, characterized in that, The flue skin is attached to the inner wall of the metal frame on one side and a pressure plate is attached to the other side; the flue skin has openings at both ends and the pressure plate has openings; the pressure plate and the flue skin are fixedly connected to the inner wall of the metal frame by bolts and nuts.

6. The desulfurization fabric compensator for extending service life and achieving online pressurized plugging as described in claim 1, characterized in that, The flue pipe, the first desulfurization fabric compensator, and the second desulfurization fabric compensator have hollow internal structures. The hollow structures of the flue pipe and the first desulfurization fabric compensator are flue ducts, and the inner wall of the second desulfurization fabric compensator is attached to the outer wall of the first desulfurization fabric compensator.

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