CN203464485U

CN203464485U - Heat pipe type biomass hot-blast stove

Info

Publication number: CN203464485U
Application number: CN201320424158.2U
Authority: CN
Inventors: 陆忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-07-16
Filing date: 2013-07-16
Publication date: 2014-03-05
Anticipated expiration: 2023-07-16

Abstract

The utility model relates to the technology field of hot-blast stoves, and particularly provides a heat pipe type biomass hot-blast stove, comprising a stove body. The stove body is internally provided with a combustion chamber and a heat exchange chamber, the combustion chamber is communicated to the heat exchange chamber via a flue, the heat exchange chamber is communicated to the stove body via an air channel, the heat exchange chamber comprises a smoke exhaust chamber and an air exhaust chamber, the smoke exhaust chamber is isolated from the air exhaust chamber via a middle separating plate, the middle separating plate is provided with a plurality of heat pipes, and one end of each heat pipe is disposed in the smoke exhaust chamber and the other end is disposed in the air exhaust chamber. The biomass hot-blast stove is advantageous in that, the heat pipes are independently installed on the middle separating plate, so that hot and cold ends of the heat pipes can perform free telescoping, complete heat compensation is achieved, and the problems of expansion and drawing breakage caused by thermal stress of heat pipes of a traditional hot-blast stove. Since each radiating pipe is in an independent operation, normal use of the hot-blast stove is not influenced when a certain heat pipe is damaged, and frequent and comprehensive replacing and maintenance are not needed. The heat pipes are provided with isothermal transmission function, heat exchange efficiency is improved, and strong practicality is provided.

Description

A kind of heat pipe-type biomass thermal wind furnace

Technical field

The utility model relates to hot-blast stove technical field, especially a kind of heat pipe-type biomass thermal wind furnace.

Background technology

Hot-blast stove is that a kind of high-temperature flue gas that combustion fuel is produced adds by heat exchanger the device that hot-air produces hot blast; Heat exchanger is as the core component of hot-blast stove, and the quality of its structural design plays vital impact to the performance of hot-blast stove.The heat exchanger of traditional hot-blast stove adopts shell and tube or calandria structure conventionally, due to air in heat exchanger and the flue gas temperature difference very large, can make to form very large thermal (temperature difference) stress between heat-transfer surface, due to the existence of this thermal (temperature difference) stress, easily cause thermal expansion and the tube sheet drawing crack of heat exchanging pipe; Meanwhile, because the structural design of heat exchanger and heat pipe thereof is unreasonable, cause heat exchange efficiency low; When occurring that heat pipe damages, need heat exchanger comprehensively keep in repair or change, the maintenance cost of increase, produces to life and has caused inconvenience.

Utility model content

The deficiency existing for above-mentioned prior art, the purpose of this utility model is to provide that a kind of operating cost is low, the thermal efficiency is high, long service life, dependable performance, without the heat pipe-type biomass thermal wind furnace that frequently carries out parts for maintenance and replacing.

To achieve these goals, the utility model adopts following technical scheme:

A heat pipe-type biomass thermal wind furnace, it comprises body of heater, is provided with combustion chamber and Heat Room in described body of heater, and described combustion chamber communicates with Heat Room by flue, and described Heat Room communicates with body of heater by air channel;

Described Heat Room comprises smoke evacuation chamber and exhaust air box, and described smoke evacuation chamber isolates by median septum and exhaust air box, is provided with many heat pipes on described median septum, and one end of described heat pipe is positioned at indoor, the other end of discharging fume and is positioned at exhaust air box.

Preferably, described heat pipe matrix is arranged, is fixed on median septum.

Preferably, on the rear wall of described smoke evacuation chamber, offer exhaust opening, on the rear wall of described exhaust air box, offer air inlet, described exhaust opening communicates with combustion chamber by flue, and described air inlet communicates with the exhaust outlet that is arranged at body of heater front side wall by air channel.

Preferably, described combustion chamber comprises the first burner hearth and the second burner hearth, offers the first floss hole communicating with the second burner hearth on the rear wall of described the first burner hearth, offers the second floss hole communicating with the chamber of discharging fume on the rear wall of described the second burner hearth.

Preferably, described the first floss hole is positioned at the top of the first burner hearth rear wall, and described the second floss hole is positioned at the below of the second burner hearth rear wall.

Owing to having adopted such scheme, numerous heat pipe of the present utility model is all independently installed on median septum, thereby the cold and hot end retractable of heat pipe, realize thermal compensation completely, avoided the heat pipe of traditional hot-blast stove easily to occur the problem of expansion, drawing crack because producing thermal stress; , because heat pipe has isothermal propagation function, at high-temperature flue gas, during through superheater tube, can be delivered to fast in the air of exhaust air box meanwhile, thereby can not produce high temperature and heat pipe is damaged; Because every radiating tube is independent operating, even if indivedual heat pipe can not affect the normal use of hot-blast stove after damaging yet, more frequent without carrying out, comprehensively replacing and maintenance; Its increased hot-blast stove heat exchange efficiency, extended hot-blast stove service life, improved the reliability of hot-blast stove, reduced the operation and maintenance cost of hot-blast stove, there is very strong practicality and market popularization value.

Accompanying drawing explanation

Fig. 1 is the internal structure schematic diagram of the utility model embodiment.

The specific embodiment

Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.

As shown in Figure 1, the heat pipe-type biomass thermal wind furnace of the present embodiment, it comprises body of heater 1, in body of heater 1, be provided with by automatic feed system and carry biological particles and for the combustion chamber of biomass burning particle with for carrying out the Heat Room of heat conversion, between combustion chamber and Heat Room, be formed with flue 2, between Heat Room and body of heater 1, be formed with air channel 3; Wherein, Heat Room comprises smoke evacuation chamber 4 and is positioned at the exhaust air box 5 of smoke evacuation 4 tops, chamber, between smoke evacuation chamber 4 and exhaust air box 5, is provided with median septum 6, so by median septum 6, space isolation is carried out in smoke evacuation chamber 4 and exhaust air box 5; The version of traditional heat exchanger for hot-blast stove for a change, heat pipe expands, the problem of drawing crack because thermal stress causes to avoid occurring traditional hot-blast stove heat pipe, on median septum 6, be provided with the heat pipe 7 that many matrixes are arranged, one end of heat pipe 7 is positioned at smoke evacuation chamber 4, the other end is positioned at exhaust air box 5, thereby heat pipe 7 can be realized the free-extension of cold and hot end to carry out completeness thermal compensation and isothermal propagation function, has improved the heat exchange efficiency of hot-blast stove.

For optimizing the air draft of hot-blast stove and the functional structure of smoke evacuation, on the rear wall of smoke evacuation chamber 4, offer exhaust opening 8, on the rear wall of exhaust air box 5, offer air inlet 9; Thus, exhaust opening 8 communicates with combustion chamber by flue 2, and air inlet 9 communicates with the exhaust outlet 10 that is arranged at body of heater 1 front side wall by air channel 3, with this, realizes the flue gas of hot-blast stove and the circulation of the good transportation of hot-air.

Simultaneously, for improving the efficiency of combustion of biomass fuel, avoid the generation of flue gas and particle, combustion chamber comprises the first burner hearth 11 and the second burner hearth 12, above the rear wall of the first burner hearth 11, offer the first floss hole 13 communicating with the second burner hearth 12, below the rear wall of the second burner hearth 12, offer the second floss hole 14 communicating with the chamber 4 of discharging fume, so, can extend the length of flue 2, biomass fuel is fully burnt; In addition, for guaranteeing that biological particles enters the first burner hearth 11 by automatically carrying out system, on the first burner hearth 11, offer charging aperture (not shown) and air inlet (not shown), automatic feed system utilizes charging aperture that biological particles is advanced in the first burner hearth 11, and mends wind to help its burning by air inlet.

The foregoing is only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model description and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.

Claims

1. a heat pipe-type biomass thermal wind furnace, it comprises body of heater, it is characterized in that: in described body of heater, be provided with combustion chamber and Heat Room, described combustion chamber communicates with Heat Room by flue, and described Heat Room communicates with body of heater by air channel;

2. a kind of heat pipe-type biomass thermal wind furnace as claimed in claim 1, is characterized in that: described heat pipe matrix is arranged, is fixed on median septum.

3. a kind of heat pipe-type biomass thermal wind furnace as claimed in claim 2, it is characterized in that: on the rear wall of described smoke evacuation chamber, offer exhaust opening, on the rear wall of described exhaust air box, offer air inlet, described exhaust opening communicates with combustion chamber by flue, and described air inlet communicates with the exhaust outlet that is arranged at body of heater front side wall by air channel.

4. a kind of heat pipe-type biomass thermal wind furnace as described in any one in claim 1-3, it is characterized in that: described combustion chamber comprises the first burner hearth and the second burner hearth, on the rear wall of described the first burner hearth, offer the first floss hole communicating with the second burner hearth, on the rear wall of described the second burner hearth, offer the second floss hole communicating with the chamber of discharging fume.

5. a kind of heat pipe-type biomass thermal wind furnace as claimed in claim 4, is characterized in that: described the first floss hole is positioned at the top of the first burner hearth rear wall, and described the second floss hole is positioned at the below of the second burner hearth rear wall.