Condensate collecting device for glass fiber reinforced plastic chimney inner cylinder

Abstract

The utility model relates to the technical field of glass fiber reinforced plastic chimneys, and discloses a condensate collecting device for a glass fiber reinforced plastic chimney inner cylinder, which comprises a base, a glass fiber reinforced plastic outer cylinder and a glass fiber reinforced plastic inner cylinder which are fixedly connected to the upper end face of the base, and the glass fiber reinforced plastic inner cylinder is located on the inner side of the glass fiber reinforced plastic outer cylinder. Smoke inlet pipes are transversely and fixedly inserted into the bottoms of the glass fiber reinforced plastic inner cylinder and the glass fiber reinforced plastic outer cylinder, a primary condensate collecting assembly is arranged on the inner side of the glass fiber reinforced plastic inner cylinder, a secondary condensate collecting assembly is arranged between the glass fiber reinforced plastic outer cylinder and the glass fiber reinforced plastic inner cylinder, and a smoke guide assembly used for dispersing smoke is arranged on the inner side of the glass fiber reinforced plastic inner cylinder. The primary condensate collecting assembly is arranged on the inner side of the glass fiber reinforced plastic inner cylinder and mainly used for preliminarily collecting and guiding condensate formed after high-temperature flue gas is cooled, and the secondary condensate collecting assembly is used for collecting condensate condensed on the inner wall of the glass fiber reinforced plastic outer cylinder and the outer wall of the glass fiber reinforced plastic inner cylinder during alternate cooling and heating. And further collecting the condensate which cannot be completely captured in the inner cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of glass fiber reinforced plastic chimneys, and in particular to a condensate collecting device for an inner barrel of a glass fiber reinforced plastic chimney. Background Art

[0002] After the wet flue gas desulfurization unit was commissioned, and with the advancement of ultra-clean emission retrofits, the flue gas entering the chimney changed from dry to wet, significantly changing chimney operating conditions. This led to increasingly serious chimney corrosion problems, making solutions a pressing issue. Fiberglass chimney inner barrel technology, with its superior performance characteristics such as low specific gravity, ease of forming, high strength, and strong corrosion resistance, has been widely used internationally. In recent years, this technology has also been gradually promoted domestically for use in chimney inner barrels for new or retrofitted units, effectively resolving chimney corrosion issues. Flue gas after wet flue gas desulfurization is saturated wet gas with a temperature of approximately 45-55°C. It contains a small amount of droplets removed by the tail flue gas demister, as well as unremoved SO2 and SO3, and small amounts of acidic gases such as HCl and HF. This gas is discharged through the desulfurization outlet clean flue to the chimney inlet, where it is then extracted through the FRP chimney into the atmosphere.

[0003] Existing devices have some disadvantages during use. For example, due to the saturated wet flue gas entering the chimney carrying droplets and the temperature dropping as it flows, a large amount of water vapor condenses into liquid water droplets, and contains a small amount of acidic gas condensate and a trace amount of dust. As the flue gas flows, a small amount of condensate will be discharged from the chimney outlet along with the flue gas, forming chimney rain, polluting the environment around the chimney, and causing corrosion and pollution to surrounding equipment or settings. Utility Model Content

[0004] The purpose of the utility model is to provide a condensate collection device for the inner tube of a fiberglass reinforced plastic chimney, so as to solve the problem that a large amount of water vapor condenses into liquid water droplets due to the mist droplets carried by the saturated wet flue gas entering the chimney and the temperature drop caused by the flow.

[0005] The utility model provides the following technical solution: a condensate collection device for the inner tube of a fiberglass reinforced plastic chimney, comprising a base, an upper end surface of the base fixedly connected to a fiberglass reinforced plastic outer tube and a fiberglass reinforced plastic inner tube, the fiberglass reinforced plastic inner tube being located inside the fiberglass reinforced plastic outer tube, a smoke inlet pipe being fixedly inserted transversely into the bottom of the fiberglass reinforced plastic inner tube and the fiberglass reinforced plastic outer tube, a primary condensate collection assembly being provided inside the fiberglass reinforced plastic inner tube, a secondary condensate collection assembly being provided between the fiberglass reinforced plastic outer tube and the fiberglass reinforced plastic inner tube, and a smoke guide assembly for dispersing smoke being provided inside the fiberglass reinforced plastic inner tube.

[0006] As a preferred embodiment of the above technical solution, the primary condensate collection assembly includes a plurality of first annular drainage half-pipes fixedly connected in an array to the inner wall of the FRP inner tube, the upper end faces of the inner circles of the first annular drainage half-pipes are fixedly connected to annular guide plates, the upper end faces of the annular guide plates are fixedly installed with annular auxiliary condensation plates, and a plurality of water guide pipes are fixed in an annular array on the outer walls of the first annular drainage half-pipes, one end of the water guide pipes is connected to the first annular drainage half-pipe, and the other end of the water guide pipes passes through the side wall of the FRP inner tube.

[0007] As a preferred embodiment of the above technical solution, the secondary condensate collection assembly includes a second annular drainage half-pipe fixedly mounted on the inner wall of the FRP outer tube and a liquid storage tank arranged on one side of the base; a liquid infusion pipe is fixedly connected to the outer wall of the second annular drainage half-pipe, one end of the liquid infusion pipe is connected to the second annular drainage half-pipe, and the other end of the liquid infusion pipe passes through the side wall of the FRP outer tube; branch pipes are symmetrically fixed on the ends of the liquid infusion pipe extending to the outside of the FRP outer tube, the top ends of the branch pipes are connected to the liquid infusion pipes, and the bottom ends of the branch pipes are inserted into the liquid storage tank.

[0008] As a preferred embodiment of the above technical solution, the smoke guide assembly includes a rotating rod rotatably connected to the center of the upper end face of the base, an auxiliary frame is fixedly connected to the inner wall of the top of the glass fiber reinforced plastic inner cylinder, the top end of the rotating rod is rotatably connected to the lower end face of the auxiliary frame, a plurality of blades are fixed in an annular array on the outer wall of the rotating rod, a driven bevel gear is fixedly sleeved on the outer wall of the bottom of the rotating rod, a mounting frame is fixedly installed on the upper end face of the base, a driving motor is fixedly installed on the mounting frame, a driving shaft is fixedly installed on the output end of the driving motor, one end of the driving shaft transversely penetrates the glass fiber reinforced plastic outer cylinder and the glass fiber reinforced plastic inner cylinder and a driving bevel gear is fixedly installed on the end portion, the driving bevel gear is meshed with the driven bevel gear, and the driving shaft is rotatably connected to the glass fiber reinforced plastic outer cylinder and the glass fiber reinforced plastic inner cylinder.

[0009] As a preferred embodiment of the above technical solution, a plurality of reinforcing plates are fixed in an annular array on the inner wall of the top of the FRP outer tube, and one end of the plurality of reinforcing plates away from the FRP outer tube is fixedly connected to the outer wall of the FRP inner tube.

[0010] As a preferred embodiment of the above technical solution, a discharge pipe is fixedly connected to one side of the liquid storage tank, and a valve is fixedly installed on the discharge pipe.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] In the present invention, the primary condensate collection component is arranged on the inner side of the FRP inner tube, and its main function is to preliminarily collect and guide the condensate formed by the high-temperature flue gas after it is cooled. The secondary condensate collection component is used to collect the condensate condensed on the inner wall of the FRP outer tube and the outer wall of the FRP inner tube when the temperature alternates between hot and cold, and further collects the condensate that has not been completely captured in the inner tube. The flue gas diversion component can guide the flue gas to form a rotation or vortex in the FRP inner tube, thereby increasing the contact area and time between the flue gas and the FRP inner tube wall, and promoting the formation of condensate. The condensate collection device effectively improves the condensation efficiency of the FRP chimney inner tube through multi-layer condensation collection and optimized flue gas diversion design. The droplet content at the chimney outlet will be greatly reduced, reducing the corrosion and damage of the condensate to the chimney equipment, and also making contributions to environmental protection and energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of a condensate collection device for the inner tube of a fiberglass reinforced plastic chimney;

[0014] Figure 2 The figure is a cross-sectional structural diagram of a condensate collecting device for the inner tube of a fiberglass reinforced plastic chimney;

[0015] Figure 3 This is a schematic diagram of the internal structure of a condensate collection device for the inner barrel of a fiberglass reinforced plastic chimney;

[0016] Figure 4 This is an enlarged structural diagram of the primary condensate collection component.

[0017] In the figure: 10, base; 11, FRP outer tube; 12, FRP inner tube; 13, smoke inlet pipe; 14, reinforcement plate; 20, first annular drainage half pipe; 21, annular guide plate; 22, annular auxiliary condensation plate; 23, water guide pipe; 30, second annular drainage half pipe; 31, liquid storage tank; 32, liquid infusion pipe; 33, branch pipe; 34, discharge pipe; 35, valve; 40, rotating rod; 41, auxiliary frame; 42, blade; 43, driven bevel gear; 44, mounting frame; 45, drive motor; 46, drive shaft; 47, active bevel gear. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention. Example

[0019] like Figure 1 and Figure 2As shown, the utility model provides a technical solution: a condensate collection device for the inner tube of a glass fiber reinforced plastic chimney, comprising a base 10, an upper end surface of the base 10 is fixedly connected to a glass fiber reinforced plastic outer tube 11 and a glass fiber reinforced plastic inner tube 12, the glass fiber reinforced plastic inner tube 12 is located inside the glass fiber reinforced plastic outer tube 11, and a smoke inlet pipe 13 is fixedly inserted transversely between the glass fiber reinforced plastic inner tube 12 and the bottom of the glass fiber reinforced plastic outer tube 11, a primary condensate collection component is provided inside the glass fiber reinforced plastic inner tube 12, a secondary condensate collection component is provided between the glass fiber reinforced plastic outer tube 11 and the glass fiber reinforced plastic inner tube 12, and a smoke guide component for dispersing smoke is provided inside the glass fiber reinforced plastic inner tube 12. During specific use, the glass fiber reinforced plastic outer tube 11 is wrapped around the outside of the glass fiber reinforced plastic inner tube 12, and the two together form a double-layer structure. This design not only enhances the overall strength of the structure, but also provides space for collecting condensate. The space between the inner and outer tubes is The gap is used to install a secondary condensate collection component. The primary condensate collection component is arranged on the inner side of the FRP inner tube 12. Its main function is to preliminarily collect and guide the condensate formed by the high-temperature flue gas after it is cooled. The secondary condensate collection component is used to collect the condensate condensed on the inner wall of the FRP outer tube 11 and the outer wall of the FRP inner tube 12 when alternating between hot and cold, and further collect those condensates that have not been completely captured in the inner tube. The flue gas diversion component can guide the flue gas to form rotation or vortex in the inner tube, thereby increasing the contact area and time between the flue gas and the inner tube wall, and promoting the formation of condensate. The condensate collection device effectively improves the condensation efficiency of the FRP chimney inner tube through multi-layer condensation collection and optimized flue gas diversion design. The droplet content at the chimney outlet will be greatly reduced, reducing the corrosion and damage of the condensate to the chimney equipment, and also contributing to environmental protection and energy saving.

[0020] As an implementation method in this embodiment, Figure 1 and Figure 4As shown, the primary condensate collection assembly includes a plurality of first annular drainage half-pipes 20 fixedly connected in an array to the inner wall of the glass fiber reinforced plastic inner tube 12, the upper end faces of the inner circles of the first annular drainage half-pipes 20 are fixedly connected to an annular guide plate 21, the upper end faces of the annular guide plates 21 are fixedly installed with an annular auxiliary condensation plate 22, and a plurality of water guide pipes 23 are fixed in an annular array on the outer wall of the first annular drainage half-pipe 20, one end of the water guide pipe 23 is connected to the first annular drainage half-pipe 20, and the other end of the water guide pipe 23 passes through the side wall of the glass fiber reinforced plastic inner tube 12. In specific use, the first annular drainage half-pipe 20 mainly collects and guides the condensate so that It can flow along a specific path and eventually be discharged from the inner tube. The main function of the annular guide plate 21 is to change the flow direction of the flue gas so that it can more fully contact the annular guide plate 21, thereby promoting the formation of condensate. The main function of the annular auxiliary condensation plate 22 is to increase the contact area between the flue gas and the condensation surface, further improving the condensation efficiency, and a plurality of perforations are provided on the auxiliary condensation plate for flue gas circulation. One end of the water pipe 23 is connected to the drainage half-pipe, and the other end passes through the side wall of the FRP inner tube 12 to guide the collected condensate out of the FRP inner tube 12, and the guided condensate enters the space of the FRP outer tube 11.

[0021] As an implementation method in this embodiment, Figure 2 and Figure 3 As shown, the secondary condensate collection assembly includes a second annular drainage half-pipe 30 fixedly mounted on the inner wall of the FRP outer cylinder 11 and a liquid storage tank 31 arranged on one side of the base 10. A liquid infusion pipe 32 is fixedly connected to the outer wall of the second annular drainage half-pipe 30. One end of the liquid infusion pipe 32 is communicated with the second annular drainage half-pipe 30, and the other end of the liquid infusion pipe 32 passes through the side wall of the FRP outer cylinder 11. Branch pipes 33 are symmetrically fixed on the end portion of the liquid infusion pipe 32 extending to the outside of the FRP outer cylinder 11. The top ends of the branch pipes 33 are communicated with the liquid infusion pipe 32, and the bottom ends of the branch pipes 33 are inserted into the liquid storage tank 31. During specific use, the second annular drainage half-pipe 30 is used to collect the condensate discharged through the FRP inner cylinder 12. The main function of the liquid infusion pipe 32 is to transport the condensate collected in the second annular drainage half-pipe 30 to the outside of the FRP outer cylinder 11, and to introduce the condensate into the liquid storage tank 31 for storage through the provided branch pipes 33.

[0022] As an implementation method in this embodiment, Figure 2As shown, the smoke guide assembly includes a rotating rod 40 rotatably connected to the center of the upper end surface of the base 10, an auxiliary frame 41 is fixedly connected to the inner wall of the top of the glass fiber reinforced plastic inner tube 12, the top of the rotating rod 40 is rotatably connected to the lower end surface of the auxiliary frame 41, a plurality of blades 42 are fixed in an annular array on the outer wall of the rotating rod 40, a driven bevel gear 43 is fixedly sleeved on the outer wall of the bottom of the rotating rod 40, a mounting frame 44 is fixedly installed on the upper end surface of the base 10, a driving motor 45 is fixedly installed on the mounting frame 44, a driving shaft 46 is fixedly installed on the output end of the driving motor 45, one end of the driving shaft 46 transversely passes through the glass fiber reinforced plastic outer tube 11 and the glass fiber reinforced plastic inner tube 12 and a driving bevel gear 47 is fixedly installed on the end thereof, and the driving bevel gear 47 and the driven bevel gear 43 is meshed and connected, and the drive shaft 46 is rotationally connected to the FRP outer tube 11 and the FRP inner tube 12. During specific use, when the drive motor 45 is started, its power is transmitted to the active bevel gear 47 through the drive shaft 46. The meshing action of the active bevel gear 47 and the driven bevel gear 43 causes the rotating rod 40 to start rotating. As the rotating rod 40 rotates, the blades 42 generate wind force and guide the flue gas to flow in a predetermined direction, and a rotation or vortex is formed in the FRP inner tube 12, thereby increasing the contact area and time between the flue gas and the wall of the FRP inner tube 12. This dynamic diversion method not only improves the emission efficiency of the flue gas, but also helps to reduce the retention and accumulation of the flue gas, and further allows the flue gas to fully contact the condensation component.

[0023] As an implementation method in this embodiment, Figure 1 As shown, a plurality of reinforcing plates 14 are fixed in a circular array on the inner wall of the top of the FRP outer tube 11. The ends of the plurality of reinforcing plates 14 away from the FRP outer tube 11 are fixedly connected to the outer wall of the FRP inner tube 12. The design of the reinforcing plates 14 helps to optimize the stress distribution between the FRP outer tube 11 and the FRP inner tube 12. When subjected to uneven loads, the reinforcing plates 14 can guide the stress to be transferred to a more stable area, thereby avoiding damage caused by local stress concentration.

[0024] As an implementation method in this embodiment, Figure 1 As shown, a discharge pipe 34 is fixedly connected to one side of the liquid storage tank 31, and a valve 35 is fixedly installed on the discharge pipe 34. The function of the valve 35 is to control the discharge process of the condensate and realize flexible operation of the switch. By adjusting the opening of the valve 35, the discharge speed and discharge amount of the condensate can be accurately controlled to meet different process requirements or emission standards.

[0025] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same.

Claims

1. A condensate collecting device for a glass fiber reinforced plastic chimney inner barrel, comprising a base (10), characterized in that: The upper end surface of the base (10) is fixedly connected to a glass fiber reinforced plastic outer tube (11) and a glass fiber reinforced plastic inner tube (12), the glass fiber reinforced plastic inner tube (12) is located inside the glass fiber reinforced plastic outer tube (11), a smoke inlet pipe (13) is fixedly inserted transversely between the bottom of the glass fiber reinforced plastic inner tube (12) and the glass fiber reinforced plastic outer tube (11), a primary condensate collection component is provided inside the glass fiber reinforced plastic inner tube (12), a secondary condensate collection component is provided between the glass fiber reinforced plastic outer tube (11) and the glass fiber reinforced plastic inner tube (12), and a smoke guide component for dispersing smoke is provided inside the glass fiber reinforced plastic inner tube (12).

2. The condensate collecting device for the inner barrel of a fiberglass reinforced plastic chimney according to claim 1, characterized in that: The primary condensate collection assembly comprises a plurality of first annular drainage half-pipes (20) fixedly connected in an array to the inner wall of the glass fiber reinforced plastic inner tube (12), an annular guide plate (21) being fixedly connected to the upper end surface of the inner circle of the first annular drainage half-pipe (20), an annular auxiliary condensation plate (22) being fixedly installed on the upper end surface of the annular guide plate (21), a plurality of water guide pipes (23) being fixed in an annular array on the outer wall of the first annular drainage half-pipe (20), one end of the water guide pipe (23) being in communication with the first annular drainage half-pipe (20), and the other end of the water guide pipe (23) passing through the side wall of the glass fiber reinforced plastic inner tube (12).

3. The condensate collecting device for the inner barrel of a fiberglass reinforced plastic chimney according to claim 1, characterized in that: The secondary condensate collection assembly comprises a second annular drainage half-pipe (30) fixedly mounted on the inner wall of the glass fiber reinforced plastic outer cylinder (11) and a liquid storage tank (31) arranged on one side of the base (10); a liquid infusion pipe (32) is fixedly connected to the outer wall of the second annular drainage half-pipe (30); one end of the liquid infusion pipe (32) is communicated with the second annular drainage half-pipe (30), and the other end of the liquid infusion pipe (32) passes through the side wall of the glass fiber reinforced plastic outer cylinder (11); branch pipes (33) are symmetrically fixed to the ends of the liquid infusion pipe (32) extending to the outside of the glass fiber reinforced plastic outer cylinder (11); the top ends of the branch pipes (33) are communicated with the liquid infusion pipe (32), and the bottom ends of the branch pipes (33) are inserted into the liquid storage tank (31).

4. The condensate collecting device for the inner barrel of a fiberglass reinforced plastic chimney according to claim 1, characterized in that: The smoke guide assembly includes a rotating rod (40) rotatably connected to the center of the upper end face of the base (10), an auxiliary frame (41) is fixedly connected to the inner wall of the top of the glass fiber reinforced plastic inner tube (12), the top of the rotating rod (40) is rotatably connected to the lower end face of the auxiliary frame (41), a plurality of blades (42) are fixed in an annular array on the outer wall of the rotating rod (40), a driven bevel gear (43) is fixedly sleeved on the outer wall of the bottom of the rotating rod (40), and a mounting frame (41) is fixedly mounted on the upper end face of the base (10). 4), a driving motor (45) is fixedly mounted on the mounting frame (44), a driving shaft (46) is fixedly mounted on the output end of the driving motor (45), one end of the driving shaft (46) passes through the glass fiber reinforced plastic outer cylinder (11) and the glass fiber reinforced plastic inner cylinder (12) in a transverse direction and a driving bevel gear (47) is fixedly mounted on the end thereof, the driving bevel gear (47) is meshedly connected with the driven bevel gear (43), and the driving shaft (46) is rotationally connected with the glass fiber reinforced plastic outer cylinder (11) and the glass fiber reinforced plastic inner cylinder (12).

5. The condensate collecting device for the inner barrel of a fiberglass reinforced plastic chimney according to claim 1, characterized in that: A plurality of reinforcing plates (14) are fixed in an annular array on the inner wall of the top of the FRP outer cylinder (11), and one end of the plurality of reinforcing plates (14) away from the FRP outer cylinder (11) is fixedly connected to the outer wall of the FRP inner cylinder (12).

6. The condensate collecting device for the inner barrel of a fiberglass reinforced plastic chimney according to claim 3, characterized in that: A discharge pipe (34) is fixedly connected to one side of the liquid storage tank (31), and a valve (35) is fixedly installed on the discharge pipe (34).

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