CN203148030U

CN203148030U - Square box type molten salt heating furnace

Info

Publication number: CN203148030U
Application number: CN 201320149535
Authority: CN
Inventors: 李永君
Original assignee: CHANGZHOU ENERGY ENGINEERING Co Ltd
Current assignee: CHANGZHOU ENERGY ENGINEERING Co Ltd
Priority date: 2013-03-29
Filing date: 2013-03-29
Publication date: 2013-08-21
Anticipated expiration: 2023-03-29

Abstract

The utility model discloses a square box type molten salt heating furnace which comprises a combustor and a furnace body. A smoke connecting port, a thermal insulation wall, an inlet collecting pipe, an outlet connecting pipe, a radiation chamber and a convection chamber are arranged on the furnace body. The radiation chamber is provided with a radiation hearth. A plurality of radiation furnace pipes are arranged on the periphery of the radiation hearth. A plurality of roof pipes are arranged on the top of the radiation chamber. The convection chamber is provided with a convection hearth, a plurality of convection furnace pipes are arranged on the periphery of the convection hearth. A lower collecting pipe is arranged at the bottom of the convection chamber, and an upper collecting pipe is arranged on the top of the convection chamber. The combustor, the radiation hearth, the convection hearth and the smoke connecting port are communicated in sequence. An output end of the inlet collecting pipe is communicated with inlet ends of the radiation furnace pipes and an inlet end of the upper collecting pipe respectively. Output ends of the radiation furnace pipes are communicated with inlet ends of the roof pipes. Inlet ends of the convection furnace pipes are communicated with the lower collecting pipe. Output ends of the convection furnace pipes are communicated with the upper collecting pipe, and an inlet end of the outlet collecting pipe is communicated with the output ends of the roof pipes and the output end of the upper collecting pipe. The square box type molten salt heating furnace can reduce cost, and is high in thermal efficiency and convenient to maintain.

Description

A kind of square chest type fused salt heating furnace

Technical field

The utility model relates to a kind of square chest type fused salt heating furnace, belongs to the heating furnace technical field.

Background technology

At present, the fused salt heating furnace of fuel such as general fire coal, biomass-burning, combusting coal water slurry, its traditional cylindrical structure design, the cylindrical structure fused salt heating furnace of shortcomings, particularly this class A fuel A such as the easy cost of ubiquity is higher, the thermal efficiency is on the low side, maintenance difficulties is big, the deashing difficulty is very big, in addition, because its pipeline ways of connecting more complicated causes the thermal efficiency of heating furnace not high, be not easy to safeguard.

Summary of the invention

Technical problem to be solved in the utility model is the defective that overcomes prior art, and a kind of square chest type fused salt heating furnace is provided, and it can reduce cost, and thermal efficiency height, is convenient to safeguard.

In order to solve the problems of the technologies described above, the technical solution of the utility model is: a kind of square chest type fused salt heating furnace, comprise combustion chamber and body of heater, has the flue gas interface on the body of heater, heat-preserving wall, inlet header, outlet header, radiation chamber and convection cell, radiation chamber has radiant box will, be provided with some radiating furnace tubes around the radiant box will, the top of radiation chamber is equipped with some roof tubes, convection cell has the convection current burner hearth, be provided with some convection coils around the convection current burner hearth, the bottom of convection cell is equipped with lower collector pipe, the top of convection cell is equipped with upper header, the combustion chamber, radiant box will, convection current burner hearth and flue gas interface are connected successively, the port of export of inlet header is communicated with the entrance point of radiating furnace tube and the entrance point of upper header respectively, and the port of export of radiating furnace tube is communicated with the entrance point of roof tube, and the entrance point of convection coil is communicated with lower collector pipe, the port of export of convection coil is communicated with upper header, and the entrance point of outlet header is communicated with the port of export of roof tube and the port of export of upper header respectively.

Adopt technique scheme, the utlity model has following beneficial effect:

1, adopted the fused salt heating furnace of this structure, particularly to fuel such as fire coal, biomass-burning, combusting coal water slurries, can also be convenient to simultaneously safeguard easily at radiation chamber and convection cell two parts deashing;

2, the square chest type fused salt heating furnace of this structure because it adopts square chest type overall structure, has possessed the low characteristics of cost;

3, the structure that connects of its pipeline can make fused salt be entered by inlet header, divides two-way to flow to radiating furnace tube and convection coil respectively, and the fused salt that enters radiation chamber flow through successively radiating furnace tube and roof tube flow to outlet header then; The fused salt that enters convection cell flow through successively lower collector pipe, convection coil and upper header, fused salt with the radiation chamber of flowing through is pooled to outlet header then, flow out body of heater finally by outlet header, this fused salt circulating direction can be so that the thermal efficiency of heating furnace integral body improves, and is convenient to safeguard.

Description of drawings

Fig. 1 is the structural representation of square chest type fused salt heating furnace of the present utility model;

Fig. 2 is the structure cutaway view of square chest type fused salt heating furnace of the present utility model.

The specific embodiment

Content of the present utility model is easier to be expressly understood in order to make, according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail below,

As Fig. 1, shown in 2, a kind of square chest type fused salt heating furnace, comprise combustion chamber 10 and body of heater, has flue gas interface 9 on the body of heater, heat-preserving wall 5, inlet header 3, outlet header 8, radiation chamber 4 and convection cell 2, radiation chamber 4 has radiant box will, be provided with some radiating furnace tubes around the radiant box will, the top of radiation chamber 4 is equipped with some roof tubes 6, convection cell 2 has the convection current burner hearth, be provided with some convection coils around the convection current burner hearth, the bottom of convection cell 2 is equipped with lower collector pipe 1, the top of convection cell 2 is equipped with upper header 7, combustion chamber 10, radiant box will, convection current burner hearth and flue gas interface 9 are connected successively, the port of export of inlet header 3 is communicated with the entrance point of radiating furnace tube and the entrance point of upper header 7 respectively, and the port of export of radiating furnace tube is communicated with the entrance point of roof tube 6, and the entrance point of convection coil is communicated with lower collector pipe 1, the port of export of convection coil is communicated with upper header 7, and the entrance point of outlet header 8 is communicated with the port of export of roof tube 6 and the port of export of upper header 7 respectively.

Inner flue gas flow of the present utility model:

After fuel such as fire coal were burnt by combustion chamber 10, the high-temperature flue gas of generation entered convection cell 2 behind radiation chamber 4 radiation heat transfers, discharged bodies of heater through radiation, heat convection by flue gas interface 9.

Fused salt flow direction of the present utility model is as follows:

Fused salt is entered by inlet header 3, divides two-way to flow to radiating furnace tube and convection coil respectively, and the fused salt that enters radiation chamber 4 flow through successively radiating furnace tube and roof tube 6 flow to outlet header 8 then; The fused salt that enters convection cell 2 flow through successively lower collector pipe 1, convection coil and upper header 7, fused salt with the radiation chamber 4 of flowing through is pooled to outlet header 8 then, flow out bodies of heater finally by outlet header 8, this fused salt circulating direction can be so that the thermal efficiency of heating furnace integral body improves, and is convenient to safeguard.

Radiating furnace tube and convection coil all can have gradient, so that fused salt can flow back in the fused salt groove fully during blowing out, simultaneously, the convection cell of fused salt heating furnace of the present utility model is provided with shoot door.

Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

Claims

1. square chest type fused salt heating furnace, comprise combustion chamber (10) and body of heater, has flue gas interface (9) on the body of heater, heat-preserving wall (5), inlet header (3), outlet header (8), radiation chamber (4) and convection cell (2), radiation chamber (4) has radiant box will, be provided with some radiating furnace tubes around the radiant box will, the top of radiation chamber (4) is equipped with some roof tubes (6), convection cell (2) has the convection current burner hearth, be provided with some convection coils around the convection current burner hearth, the bottom of convection cell (2) is equipped with lower collector pipe (1), the top of convection cell (2) is equipped with upper header (7), combustion chamber (10), radiant box will, convection current burner hearth and flue gas interface (9) are connected successively, it is characterized in that: the port of export of inlet header (3) is communicated with the entrance point of radiating furnace tube and the entrance point of upper header (7) respectively, the port of export of radiating furnace tube is communicated with the entrance point of roof tube (6), the entrance point of convection coil is communicated with lower collector pipe (1), the port of export of convection coil is communicated with upper header (7), and the entrance point of outlet header (8) is communicated with the port of export of roof tube (6) and the port of export of upper header (7) respectively.