Heat exchange chamber structure of solid waste fluidized bed

Abstract

The utility model relates to a heat exchange chamber structure of a solid waste fluidized bed, including a heat exchange chamber, a convection heat exchanger, a heat exchange chamber flue gas inlet and a heat exchange chamber flue gas outlet; the heat exchange chamber includes a heat exchange chamber body and a turning chamber ash hopper, a partition is provided in the heat exchange chamber body, the partition divides the internal space of the heat exchange chamber body into independent empty flues and heat exchange flues, the internal space of the empty flue and the internal space of the heat exchange flue are connected through the internal space of the turning chamber ash hopper, a flue gas inlet is provided at the upper end of the empty flue, a flue gas outlet is provided at the upper end of the heat exchange flue, and a convection heat exchanger is installed in the heat exchange flue. The utility model prolongs the flue gas combustion time by adding an empty flue, inhibits the generation of CO, and prevents the generation of dioxins. The turning chamber ash hopper in the utility model can reduce the flue gas flow rate, and CL in the flue gas is adsorbed in the dust after reaction and is settled, which is conducive to prolonging the service life of the convection heat exchanger and has obvious anti-corrosion effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of boiler structures and specifically discloses a heat exchange chamber structure of a solid waste fluidized bed. Background Art

[0002] During the operation of a fluidized bed boiler burning solid waste, the treatment of CO in the tail flue gas requires high-quality environmental protection equipment. The CL contained in the flue gas after burning solid waste also makes the convection heat exchanger more susceptible to corrosion. Summary of the invention

[0003] The utility model aims to overcome the deficiencies in the prior art and provide a heat exchange chamber structure of a solid waste fluidized bed which can reduce CO generation, reduce flue gas flow rate and extend the service life of a convection heat exchanger.

[0004] According to the technical solution provided by the utility model, the heat exchange chamber structure of the solid waste fluidized bed includes a heat exchange chamber, a convection heat exchanger, a heat exchange chamber smoke inlet and a heat exchange chamber smoke outlet; the heat exchange chamber includes a heat exchange chamber body, a turning chamber ash hopper fixed to the lower end of the heat exchange chamber body, a partition is provided in the heat exchange chamber body, the partition divides the internal space of the heat exchange chamber body into independent empty flues and heat exchange flues, the internal space of the empty flue is connected to the internal space of the heat exchange flue through the internal space of the turning chamber ash hopper, a heat exchange chamber smoke inlet is provided at the upper end of the empty flue, a heat exchange chamber smoke outlet is provided at the upper end of the heat exchange flue, and a convection heat exchanger is installed in the heat exchange flue.

[0005] Preferably, the outer shell of the heat exchange chamber body is a membrane wall structure.

[0006] Preferably, the partition is a membrane wall structure.

[0007] Preferably, a heat-insulating refractory layer is provided on the inner wall of the turning chamber ash hopper.

[0008] The utility model has the following advantages:

[0009] 1. The utility model prolongs the flue gas combustion time by adding an empty flue, inhibits the generation of CO and prevents the generation of dioxins.

[0010] 2. The ash hopper in the turning chamber of the utility model can reduce the flue gas flow rate. CL in the flue gas is adsorbed in the dust and settled after reaction, which is beneficial to extend the service life of the convection heat exchanger and has obvious anti-corrosion effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0013] A heat exchange chamber structure of a solid waste fluidized bed comprises a heat exchange chamber 1, a convection heat exchanger 2, a heat exchange chamber flue gas inlet 3 and a heat exchange chamber flue gas outlet 4; the heat exchange chamber 1 comprises a heat exchange chamber body 1.1, a turning chamber ash hopper 1.2 fixed to the lower end of the heat exchange chamber body 1.1, a partition 1.3 is provided in the heat exchange chamber body 1.1, the partition 1.3 divides the internal space of the heat exchange chamber body 1.1 into independent empty flues 1.11 and heat exchange flues 1.12, the internal space of the empty flue 1.11 and the internal space of the heat exchange flue 1.12 are connected through the internal space of the turning chamber ash hopper 1.2, a heat exchange chamber flue gas inlet 3 is provided at the upper end of the empty flue 1.11, a heat exchange chamber flue gas outlet 4 is provided at the upper end of the heat exchange flue 1.12, and a convection heat exchanger 2 is installed in the heat exchange flue 1.12.

[0014] The outer shell of the heat exchange chamber body 1.1 is a membrane wall structure.

[0015] The partition 1.3 is a membrane wall structure.

[0016] A heat-insulating refractory layer 1.21 is provided on the inner wall of the turning chamber ash hopper 1.2.

[0017] In actual use of the utility model, the heat exchange chamber flue gas inlet 3 is connected to the flue gas outlet of the boiler separator 6 through the inlet turning flue 5, and the heat exchange chamber flue gas outlet 4 is connected to the outlet turning flue 7, and the convection heat exchanger 2 is installed at the end of the outlet turning flue 7. The hot flue gas enters the empty flue 1.11 of the heat exchange chamber 1 through the turning flue 5 from the flue gas outlet of the boiler separator 6, and the hot flue gas first goes down through the empty flue 1.11 and then enters the heat exchange flue 1.12 through the turning chamber ash hopper 1.2. The hot flue gas performs heat exchange with the convection heat exchanger 2 in the heat exchange flue 1.12, and finally enters the outlet turning flue 7 to perform heat exchange with the convection heat exchanger 2 installed at the end of the outlet turning flue 7.

[0018] The utility model prolongs the smoke combustion time by adding an empty smoke duct 1.11, inhibits the generation of CO and prevents the generation of dioxins.

[0019] The turning chamber ash hopper 1.2 in the utility model can reduce the flue gas flow rate, and CL in the flue gas is adsorbed in the dust and settled after reaction, which is beneficial to prolonging the service life of the convection heat exchanger 2 and has obvious anti-corrosion effect.

[0020] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to examples, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A heat exchange chamber structure of a solid waste fluidized bed, comprising a heat exchange chamber (1), a convection heat exchanger (2), a heat exchange chamber smoke inlet (3) and a heat exchange chamber smoke outlet (4); wherein: The heat exchange chamber (1) comprises a heat exchange chamber body (1.1), a deflection chamber ash hopper (1.2) fixed to the lower end of the heat exchange chamber body (1.1), a partition (1.3) is provided in the heat exchange chamber body (1.1), the partition (1.3) divides the internal space of the heat exchange chamber body (1.1) into independent empty flues (1.11) and heat exchange flues (1.12), the internal space of the empty flue (1.11) and the internal space of the heat exchange flue (1.12) are connected via the internal space of the deflection chamber ash hopper (1.2), a heat exchange chamber flue gas inlet (3) is provided at the upper end of the empty flue (1.11), a heat exchange chamber flue gas outlet (4) is provided at the upper end of the heat exchange flue (1.12), and a convection heat exchanger (2) is installed in the heat exchange flue (1.12).

2. The heat exchange chamber structure of the solid waste fluidized bed according to claim 1, characterized in that: The outer shell of the heat exchange chamber body (1.1) is a membrane wall structure.

3. The heat exchange chamber structure of the solid waste fluidized bed according to claim 1, characterized in that: The partition (1.3) is a membrane wall structure.

4. The heat exchange chamber structure of the solid waste fluidized bed according to claim 1, characterized in that: The inner wall of the turning chamber ash hopper (1.2) is provided with a heat-insulating refractory layer (1.21).

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