Air feeder suction opening cover shell with condensate water recycling function

Abstract

The embodiment of the utility model provides an air feeder suction opening cover shell with a condensate water recycling function. The air feeder suction opening cover shell comprises a cover shell body covering an air feeder suction opening, the cover shell body is of a transversely-arranged cylindrical structure, and the end, facing the air feeder suction opening, of the cover shell body is open; an air inlet and a flue gas inlet are formed in the side surface of the cylinder wall of the housing body, and the flue gas inlet is communicated with a flue gas circulating pipeline; the water outlet is formed in the bottom of the cylinder wall of the housing body and communicated with the condensate water outlet pipe, condensate water in the housing body can be led out to a designated position, and therefore the condensate water is prevented from flowing out of a gap between the housing body and the air feeder.

Description

TECHNICAL FIELD

[0001] The utility model relates to a boiler technical field, concretely relates to a kind of air supply fan suction port cover shell with condensate water recovery function. BACKGROUND

[0002] Flue gas recirculation refers to the part of low-temperature flue gas discharged by the boiler is introduced into the air supply fan, mixed with air and then sent into the furnace to assist combustion. When the boiler is running at low load, the flue gas discharged has a low temperature. After entering the air supply fan suction port cover shell through the flue gas circulation pipeline, the condensed water separated out will flow out from the gap between the cover shell and the air supply fan, resulting in water stains or rust marks on the outer surface of the product, which affects the appearance of the boiler. In addition, when the boiler is stopped and then restarted, the condensed water in the chimney can also enter the air supply fan suction port cover shell through the flue gas circulation pipeline and flow out from the gap between the cover shell and the air supply fan. SUMMARY

[0003] Therefore, the embodiments of the utility model provide an air supply fan suction port cover shell with condensate water recovery function to solve the technical problem that when the boiler is running at low load, the condensed water separated out from the flue gas and / or the condensed water in the chimney when the boiler is stopped and then restarted will flow out from the gap between the cover shell and the air supply fan after entering the air supply fan suction port cover shell through the flue gas circulation pipeline.

[0004] The utility model embodiment provides a kind of air supply fan suction port cover shell with condensate water recovery function, including the cover shell body of the air supply fan suction port, the cover shell body is transversely arranged cylindrical structure, and the end of cover shell body towards air supply fan suction port is open setting;Air inlet and flue gas inlet are provided on the side surface of the cylinder wall of the cover shell body, and the flue gas inlet is communicated with flue gas circulation pipeline;Drain port is provided on the bottom of the cylinder wall of the cover shell body, and the drain port is communicated with condensate water lead-out pipe.

[0005] Optionally, a bottom water baffle and a side water baffle are provided on the inner side of the cylinder wall of the cover shell body;The bottom water baffle is provided on the side of the drain port away from the flue gas inlet and extends along the axial direction of the cover shell body;The side water baffle is provided on the side of the drain port close to the open end of the cover shell body and extends along the circumferential direction of the cover shell body;The bottom water baffle and the side water baffle are sealingly connected.

[0006] Optionally, a flange for connecting with the air supply fan suction port is provided on the open end of the cover shell body.

[0007] Optionally, the air inlet and the flue gas inlet are oppositely arranged on the two sides of the cover shell body.

[0008] The utility model discloses has the following beneficial effects: the drain port is connected with the condensed water leading pipe, can lead the condensed water in the cover shell body to the specified position from, thereby avoids the condensed water from the gap between the cover shell body and the air blower to flow out. BRIEF DESCRIPTION OF DRAWINGS

[0009] In order to more clearly illustrate the technical scheme in the utility model embodiment, the following will briefly introduce the drawing needed to be used in the embodiment description, and obviously, the drawing in the following description is only some embodiments of the utility model, and for the person skilled in the art, other drawings can also be obtained according to these drawings without the creative labor.

[0010] Figure 1 It is the structural schematic diagram of the utility model embodiment;

[0011] The figure number indicates:

[0012] 1, cover shell body;2, flange;3, air inlet;4, flue gas inlet;5, flue gas circulation pipeline;6, drain port;7, leading connector;8, condensed water leading pipe;9, bottom water baffle;10, side water baffle. DETAILED DESCRIPTION

[0013] The technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings in the utility model embodiment, and obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without the creative labor belong to the protection scope of the utility model.

[0014] The embodiment of the utility model provides a kind of air supply fan suction port cover shell with condensed water recovery function, including cover shell body 1 being covered in air supply fan suction port.As shown in Figure 1 The cover shell body 1 is horizontally arranged cylindrical structure, and the end of the cover shell body 1 towards air supply fan suction port is open, and the open end is provided with flange 2 for connecting with air supply fan suction port.The cylindrical wall side of cover shell body 1 is provided with air inlet 3 for air to enter and flue gas inlet 4 for flue gas to enter, and flue gas inlet 4 is communicated with the flue gas circulation pipeline 5 of boiler.For the convenience of air and flue gas mixing, air inlet 3 and flue gas inlet 4 can be oppositely arranged on the two sides of cover shell body 1.

[0015] The bottom of the cylinder wall of the shell body 1 is provided with a drain port 6, and the drain port 6 is connected with a condensate water outlet pipe 8 through an outlet joint 7. The condensate water entering the shell body 1 from the flue gas circulation pipeline 5 can flow to the drain port 6 at the bottom of the cylinder wall of the shell body 1 along the cylinder wall of the shell body 1, and is discharged to a designated position through the condensate water outlet pipe 8, so that the condensate water is prevented from flowing out from the gap between the shell body 1 and the air blower.

[0016] Further, the utility model further provides a bottom baffle 9 and a side baffle 10 on the inner side of the cylinder wall of the shell body 1. The bottom baffle 9 is arranged on the side of the drain port 6 away from the flue gas inlet 4 and extends along the axial direction of the shell body 1. The side baffle 10 is arranged on the side of the drain port 6 close to the open end of the shell body 1 and extends along the circumferential direction of the shell body 1. The bottom baffle 9 and the side baffle 10 can collect the condensate water to the drain port 6 and prevent the condensate water from flowing to the gap between the shell body 1 and the air blower. The bottom baffle 9 and the side baffle 10 need to be sealingly connected to prevent the condensate water from flowing out from the gap between the two baffles.

[0017] The principles and implementation modes of the utility model are described by using specific examples in this paper, and the above examples are only used to help understand the technical solutions and core ideas of the utility model; those skilled in the art should understand that the technical solutions recorded in the above examples can be modified or some technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A blower suction mask shell with condensate recovery function, characterized in that: The device includes a casing body that covers the intake of a blower. The casing body has a horizontally arranged cylindrical structure with one end open facing the intake of the blower. An air inlet and a flue gas inlet are provided on the side of the cylindrical wall of the casing body. The flue gas inlet is connected to a flue gas circulation pipeline. A drain outlet is provided at the bottom of the cylindrical wall of the casing body and is connected to a condensate drain pipe.

2. The blower suction mask shell with condensate recovery function according to claim 1, characterized in that: The inner wall of the casing body is provided with a bottom baffle plate and a side baffle plate; the bottom baffle plate is located on the side of the drain outlet away from the flue gas inlet and extends along the axial direction of the casing body; the side baffle plate is located on the side of the drain outlet near the open end of the casing body and extends along the circumferential direction of the casing body; the bottom baffle plate and the side baffle plate are sealed together.

3. The blower suction mask shell with condensate recovery function according to claim 1, characterized in that: The open end of the housing body is provided with a flange for connecting to the air inlet of the blower.

4. The blower suction mask shell with condensate recovery function according to claim 1, characterized in that: The air inlet and the flue gas inlet are located opposite each other on both sides of the casing body.

Images