CN2364336Y

CN2364336Y - High-efficiency sealed heat exchanger

Info

Publication number: CN2364336Y
Application number: CN 99222767
Authority: CN
Inventors: 谢西平
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-02-05
Filing date: 1999-02-05
Publication date: 2000-02-16
Anticipated expiration: 2009-02-05

Abstract

The utility model belongs to a heat exchanger, which comprises a furnace body, wherein, a combustion chamber is arranged inside the furnace body; a water sleeve is arranged outside the combustion chamber; a smoke discharge channel is outwardly led out of the combustion chamber which is provided with a heat pipe group, one end of each heat pipe of the heat pipe group is totally inserted into the water sleeve, and the other end is inserted into the combustion chamber. The utility model is characterized in that the outer part of every heat pipe which is inserted into one end of the combustion chamber is sheathed with an outer sleeve which is made of heat conducting material and is connected with the body wall of the water sleeve into a whole. The utility model has the advantages of convenient assembly and disassembly, simple structure, etc. No water penetration is in the combustion chamber.

Description

Sealed efficient heat exchanger

The utility model belongs to a kind of heat exchanger.

Common heat exchanger as the essential structure of hot-water boiler, drinking water boiler is: comprise the body of heater of inner band combustion chamber, be provided with water jacket in the outside, combustion chamber, outwards draw smokejack from the combustion chamber.By the burning of fuel in the combustion chamber, the water among the heating water jacket.Calory burning is to conduct to water in the water jacket by the base plate of water jacket and side plate.Because the thermal conductivity factor of water jacket material is not high, so the thermal efficiency of boiler is very low.In addition, easily during boiler combustion cross heating and cause the water jacket explosion accident.Therefore the security of boiler is relatively poor.

For overcoming above shortcoming, many heat exchangers that utilize heat pipe, be suggested as the design of tubular boiler.Be 93226699.1 Chinese patent application as application number: it is equiped with the heat pipe group, and an end of each heat pipe of heat pipe group all is placed in the water jacket, the other end then is inserted in the combustion chamber.Because the thermal conductivity factor of heat pipe is high, so when the fuel combustion of combustion chamber, combustion heat energy can be conducted to the water in the water jacket with high conversion ratio by heat pipe.So exchanger heat efficient height.Have, when burning was excessive, heat pipe reaches uniform temperature can damage, lose heat transmission function voluntarily again.So there is not the problem of over-heating, safe and reliable.

But above tubular boiler also exists such problem: inserted water jacket body wall place at heat pipe, water infiltrates the combustion chamber in the unavoidable water jacket.In application number is 94226847.4 Chinese patent application, has disclosed and a kind ofly inserted water jacket body wall place at heat pipe and insert airtight and watertight padding to solve the scheme of seepage problem.But, because the flame resistance of airtight and watertight padding etc. is had relatively high expectations, increased material cost, main is that this makes the heat pipe mounting structure complicated, and the heat pipe that has burnt is keeped in repair and change very inconvenience.

At application number is that its heat pipe and water jacket are integrally welded in 9,520,872 5.1 the Chinese patent application disclosed " heat pipe boiler ".Though it can avoid the combustion chamber seepage problem, the heat pipe maintain and replace is almost impossible.

The purpose of this utility model just is to provide in a kind of combustion chamber and does not seep water, convenient, the simply constructed heat-pipe heat exchanger of heat pipe mounting or dismounting.

The purpose of this utility model is achieved in that it comprises the body of heater of inner band combustion chamber, be provided with water jacket in the outside, combustion chamber, outwards draw smokejack from the combustion chamber, and be equiped with the heat pipe group, an end of each heat pipe of heat pipe group all is placed in the water jacket, the other end then is inserted in the combustion chamber; It is characterized in that: be with the overcoat of Heat Conduction Material system in the outside that is inserted in an end in the combustion chamber of each heat pipe, this overcoat and water jacket body wall fuse.

A part of heat pipe can be that an end is placed in that the other end then is inserted in the flue in the said water jacket among the heat pipe group.

Moreover heat pipe the group preferably be arranged in parallel by several column, and adjacent two row heat pipes are staggered.

Moreover, be preferably in said flue external wall of upper portion and place in the said water jacket and be with fin.

Moreover, be preferably in said flue inwall and lay spinning disk.

Because the outside of heat pipe is with overcoat, and this overcoat and water jacket body wall fuse, so heat pipe is inserted in the combustion chamber with complete sealing state, do not have seepage problem.Because overcoat is a Heat Conduction Material system, does not influence heat pipe work.In addition, heat pipe can be lived and be inserted in the overcoat the inside, when heat pipe is burnt or other problem occurs, can keep in repair easily, change.This shows the utlity model has in the combustion chamber do not seep water, advantages such as heat pipe mounting or dismounting convenience, simple structure.

Further specify the utility model below in conjunction with embodiment.

Fig. 1 is the main cutaway view of a kind of concrete structure of the present utility model.

Fig. 2 is the cutaway view along X-X line among Fig. 1.

Fig. 3 is the schematic diagram of another embodiment of the utility model heat exchanger.

Fig. 4 is the front view of the another kind of embodiment of the utility model heat exchanger.

Fig. 5 is the cutaway view of Fig. 4.

Embodiment 1

According to Fig. 1 and 2, the utility model heat exchanger is a kind of boiler, comprises the body of heater 1 of inner band combustion chamber 2, and the smokejack 5 of " L " shape is drawn in 2 side upper end in the combustion chamber, water jacket 4 is enclosed within body of heater 1 top and flue 5 outsides, and water jacket 4 lower-left ends are brought the mouth of a river 7 into, upper right side is taken the mouth of a river 6 out of.Be equiped with the heat pipe group, an end of each heat pipe 3 of heat pipe group all is placed in the water jacket 4, the other end then is inserted in combustion chamber 2 and flue 5 in.The outside that is inserted in an end in the combustion chamber 2 at each heat pipe 3 is with overcoat 8, and this overcoat 8 fuses with water jacket 4 body walls.In the present embodiment, overcoat 8 is integrated in the bottom surface of water jacket 4.Generation type can be: the system of opening on water jacket 4 bottom surfaces is welded the cylindrical shell that an internal diameter is same as this hole at tapping then with the close hole of the bore of heat pipe 3.The shape of cylindrical shell will determine according to the shape of heat pipe, such as being garden shape, square etc.The internal diameter of cylindrical shell has the size of some friction degree to be advisable with the heat pipe 3 and the barrel that can make insertion.Guarantee that so promptly heat pipe 3 do not swing, can pull down heat pipe 3 easily again.The material of overcoat 8 is advisable with the metal material of good heat conductivity.

In the present embodiment, the heat pipe group be arranged in parallel by several column, and adjacent two row heat pipes 3 are staggered, and this is in order to allow the water that flows through contact, fully to be heated with heat pipe more than 3.

In the present embodiment, heat pipe 3 adopts normal temperature (0～200 ℃) heat pipe.Temperature reaches more than 50 ℃ just can work, so use timber, straw etc. also can make heat exchanger work as fuel.

Embodiment 2

As seen from Figure 3: the heat exchanger shown in this embodiment is identical with the cardinal principle of embodiment 1, and the difference part only is: 1. in flue 5 external wall of upper portion and place and be with fin 9 in the water jacket 4, this is more conducive to absorb heat in the smoke evacuation, improves the thermal efficiency.2. lay spinning disk 10 at flue 5 inwalls, make smoke evacuation be vortex flow and flow out flue 5, further strengthen flue 5 interior hot cigarettes and carry out heat exchange with water in the water jacket 4.

Embodiment 3

According to Fig. 4 and 5, the utility model heat exchanger is a kind of drinking water boiler, the body of heater 11 that comprises inner band combustion chamber 12, the smokejack 15 of straight-tube shape is drawn in 12 upper end in the combustion chamber, water jacket 14 is enclosed within body of heater 11 tops and flue 15 outsides, and water jacket 14 upper end band pressure keep mouth 17 and water inlet 16, draw water tap with two outlet 20 in the bottom of water jacket 14, water jacket 14 bottoms have discharge outlet 9, and slag-drip opening 21 is outwards drawn in the bottom of the fire grate of combustion chamber 12.One end of each heat pipe 13 among the heat pipe group of installing all is placed in the water jacket 14, the other end then is inserted in the combustion chamber 12.The embodiment 1 that coexists is the same, and the outside that is inserted in an end in the combustion chamber 2 of each heat pipe 13 is with overcoat 18.The structure of this overcoat 18 is consistent with overcoat 4 among the embodiment 1.

Claims

1, sealed efficient heat exchanger, it comprises the body of heater of inner band combustion chamber, is provided with water jacket in the outside, combustion chamber, outwards draws smokejack from the combustion chamber, and be equiped with the heat pipe group, an end of each heat pipe of heat pipe group all is placed in the water jacket, the other end then is inserted in the combustion chamber; It is characterized in that: be with the overcoat of Heat Conduction Material system in the outside that is inserted in an end in the combustion chamber of each heat pipe, this overcoat and water jacket body wall fuse.

2, by the said sealed efficient heat exchanger of claim 1, it is characterized in that: a part of heat pipe among the said heat pipe group, one end are placed in that the other end then is inserted in the flue in the said water jacket.

3, by the said sealed efficient heat exchanger of claim 1, it is characterized in that: said heat pipe group be arranged in parallel by several column, and adjacent two row heat pipes are staggered.

4, by the said sealed efficient heat exchanger of claim 2, it is characterized in that: said heat pipe group be arranged in parallel by several column, and adjacent two row heat pipes are staggered.

5, by the said sealed efficient heat exchanger of claim 1, it is characterized in that: in said flue external wall of upper portion and place in the said water jacket and be with fin.

5, by the said sealed efficient heat exchanger of claim 2, it is characterized in that: in said flue external wall of upper portion and place in the said water jacket and be with fin.

6, by the said sealed efficient heat exchanger of claim 3, it is characterized in that: in said flue external wall of upper portion and place in the said water jacket and be with fin.

7, by the said sealed efficient heat exchanger of claim 4, it is characterized in that: in said flue external wall of upper portion and place in the said water jacket and be with fin.

8, by each said sealed efficient heat exchanger among the claim 1-7, it is characterized in that: be laid with spinning disk at said flue inwall.