CN202813323U - Boiler - Google Patents

Abstract

The utility model discloses a boiler. The boiler comprises a tank body, and the tank body comprises a combustion chamber, a plurality of water pipes, a boiler frame body and a combustion gas exhausting port, wherein the combustion chamber is used for combusting fuel, the plurality of water pipes are distributed on the outer side of the combustion chamber, the boil frame body is located on the outer side of the water pipes, and the combustion gas exhausting port is installed on the boiler frame body and used for exhausting combustion gas produced inside the combustion chamber. Part of the water pipes are distributed on the periphery of the combustion chamber in an annular shape to forms an inner side water pipe group, part of the water pipes are distributed on the outer side of the inner side water pipe group in an annular shape to form an outer side water pipe group, and a combustion gas through path is formed between he inner side water pipe group and the outer side water pipe group. A combustion chamber opening portion communicated with the combustion chamber and the combustion gas through path is installed on the inner side water pipe group, a combustion gas through path opening portion communicated with the combustion gas through path and the combustion gas exhausting port is installed on the outer water pipe group, the water pipes are allocated on the middle area and the lower area of the combustion gas through path, and a plurality of fins which are axially distributed at intervals are installed on the water pipes. The boiler can heat the water pipes evenly.

Description

A kind of boiler

Technical field

The utility model relates to a kind of boiler.

Background technology

At present, this utilization is to the boiler of water heating generating steam, all have tank body and be connected in aiutage on this tank body, described tank body have combusting heavy oil or light oil the combustion chamber, accommodate within it boiler framework around many water pipes of this combustion chamber placement and with described water pipe.

Above-mentioned boiler heats generating steam by the burning gases that fuel combustion produces to the water in the water pipe.Some boiler wherein, in order to improve burning gases to the heat transfer efficiency of water in the water pipe, several fins that distribute along the water pipe axially spaced-apart that on water pipe, also are provided with.

Yet these are arranged on the water pipe of boiler boiler framework inside, and according to the difference of water pipe position, the degree of its heating also is not quite similar.As: be arranged on the water pipe of burning gases stream upstream, compare the water pipe that is arranged on burning gases stream downstream, the heating of more acceptant high-temperature combustion gas.Therefore can occur Water pipe heating inequality, the efficiently situation of generating steam.

Summary of the invention

The utility model purpose is: for the problems referred to above, provide a kind of can be to the boiler of water pipe homogeneous heating,

The technical solution of the utility model is: a kind of boiler, comprise tank body, described tank body comprises the combustion chamber of combustion fuel, be arranged in the many water pipes in this outside, combustion chamber, be positioned at the boiler framework in the described water pipe outside, and the burning gases outlet that is used for discharging the burning gases that produce in the described combustion chamber that arranges on the described boiler framework, described water pipe distributes in the form of a ring on every side in described combustion chamber and forms inboard water pipe group, and distributing in the form of a ring to form between outside water pipe group and described inboard water pipe group and the outside water pipe group in inboard water pipe group's the outside again is formed with the burning gases path; Described inboard water pipe group is provided with the combustion chamber openings section that is communicated with described combustion chamber and described burning gases path, and described outside water pipe group is provided with the burning gases passage opening section that is communicated with described burning gases path and described burning gases outlet; At the described water pipe of the midstream and downstream area configurations of described burning gases path, be provided with several fins that axially spaced-apart distributes on this water pipe.

Described fin is arranged in the described burning gases path near on the interior described water pipe that disposes of described burning gases passage opening section's one side, 50% ~ 60% scope.

Described fin along continuous straight runs on water pipe extends to be installed.

The utility model has the advantages that:

1) on the inner side of the water pipe that consists of inboard water pipe group and the water pipe near combustion chamber openings section one side (namely away from that side of the burning gases passage opening section), there is not installation fins; But in the burning gases path, on the water pipe near burning gases passage opening section one side, fin is housed.Thus, when just the high-temperature combustion gas of generation was near the water pipe the flowing in combustion chamber peristome of combustion chamber after the fuel combustion, it was overheated can not occur.On the other hand, the downstream position (i.e. the position of close burning gases passage opening section) of the burning gases path that descends at burning gas temperature, owing on the water pipe fin is housed, therefore can be more effectively the water of water pipe inside be conducted heat, thereby can heat more equably water pipe.

2) inboard water pipe group is consistent with outside water pipe group central shaft each other, thus the burning gases path from swim over to the downstream, the width of whole section path is consistent.Can heat more equably water pipe thus.

3) fin along continuous straight runs on the water pipe tube wall extend to be installed, and the fin flow direction of the burning gases in the burning gases path has just prevented the increase of resistance like this.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further described:

Fig. 1 is the structural representation of boiler among the utility model embodiment;

Fig. 2 is that the X-X of Fig. 1 is to cutaway view;

Wherein: 10-tank body, 30-aiutage.

The 1-boiler, 11-boiler framework, 12-water pipe, 13-lower header, 14-upper collecting chamber, 15-burning gases discharge outlet, 16-burner, 17-combustion chamber, 18-burning gases path, 19-combustion chamber openings section, 20-burning gases passage opening section;

The inboard water pipe group of 121-, 122-outside water pipe group, 123-partition.

The specific embodiment

The boiler 1 of present embodiment as depicted in figs. 1 and 2, has tank body 10 and aiutage 30.

Described tank body 10, as depicted in figs. 1 and 2, comprise on boiler framework 11, water pipe 12, lower header 13, upper collecting chamber 14, burner 16 and the fin water pipe 12 fin 40 of installing.The inside of tank body 10 has combustion chamber 17, burning gases path 18, combustion chamber openings section 19 and burning gases passage opening section 20.

Boiler framework 11 is cylindric, is the critical piece that consists of tank body 10 profiles.This boiler framework 11 is at right angle setting.

Water pipe 12 disposes along the vertical direction in the inside of boiler framework 10.As depicted in figs. 1 and 2, several water pipes 12 fits together and consists of inboard water pipe group 121 and water pipe group 122 outside these inboard water pipe group 121 outsides consist of.The spigot shaft coaxle of inboard water pipe group 121 and boiler framework 11, in the form of a ring configuration.In the present embodiment, inboard water pipe group 121, as shown in Figure 2, except combustion chamber openings section 19, other parts directly or by partition 123 are formed by connecting by the water pipe 12 of disposed adjacent.

Outside water pipe group 122, with the spigot shaft coaxle of boiler framework 11, in the form of a ring configuration.That is to say that boiler framework 11 is positioned at outside water pipe group 122(water pipe 12) the outside.In the present embodiment, outside water pipe group 122, as shown in Figure 2, except the part at burning gases discharge portion place, other parts directly or by partition 123 are formed by connecting by the water pipe 12 of disposed adjacent.

Lower header 13 is configured in the lower position of boiler framework 11 inside.This lower header 13 is made of the container of ring-type.Connecting the inboard water pipe group 121 of water pipe 12(and outside water pipe group 122 on the lower header 13) the lower end.

Upper collecting chamber 14 is configured in the upper position of boiler framework 11 inside.This upper collecting chamber 14 is made of the container of ring-type.Connecting the inboard water pipe group 121 of water pipe 12(and outside water pipe group 122 on the upper collecting chamber 14) the upper end.

Burning gases discharge portion 15 is arranged on the bottom of boiler framework 11 peripheries.

Burner 16 is configured in the central portion above the boiler framework 11.Contain fuel nozzle and air supply pipe (all not shown) on the burner 16.Burner 16 is with the internal spray of fuel from fuel nozzle to boiler framework 11, and the internal feed air from the spray air hose to boiler framework 11 makes fuel combustion simultaneously.

Combustion chamber 17, as depicted in figs. 1 and 2, the space that is surrounded by inboard water pipe group 121 consists of.That is to say inboard water pipe group 121(water pipe 12) dispose in the form of a ring around combustion chamber 17.In this combustion chamber 17, the burning that ejects from the fuel nozzle of burner 16 is burnt at this, produces burning gases.

Burning gases path 18 as depicted in figs. 1 and 2, is made of inboard water pipe group's 121 the outside and the space between water pipe group 122 inboards, the outside.Because inboard water pipe group 121 is consistent with outside water pipe group 122 central shaft each other, thus burning gases path 18 from swim over to the downstream, the width of whole section path is consistent.

Combustion chamber openings section 19 is being communicated with combustion chamber 17 and burning gases path 18.In the present embodiment, combustion chamber openings section 19 is positioned at the part that does not dispose water pipe 12 on the inboard water pipe group 121.

In the above-mentioned burning gases path 18, the burning gases that produce in the combustion chamber 17 enter and from then on pass through from combustion chamber openings section 19.

Burning gases passage opening section 20 is being communicated with burning gases path 18 and burning gases discharge portion 15.In the present embodiment, burning gases passage opening section 20 is positioned at the part that does not dispose water pipe 12 on the outside water pipe group 122.The burning gases of burning gases path 18 of flowing through are discharged from burning gases discharge portion 15 after through burning gases passage openings section 20.

Aiutage 30 as depicted in figs. 1 and 2, is connected with burning gases discharge portion 15.This aiutage 30 is connected with burning gases path 18, from tank body 10(burning gases discharge portion 15) from then on the burning gases of discharging pass through.

Next describe with regard to fin 40:

In the present embodiment, fin 40, as shown in Figure 2, on the water pipe 12 that in the midstream and downstream regional extent of burning gases path 18, disposes vertically in accordance with regulations interval install.Particularly, fin 40 is installed in respectively on the water pipe 12 that consists of inboard water pipe group 121 and outside water pipe group 122, and fin 40 is tabular, is positioned on the circumferential surface of burning gases 18 1 sides along continuous straight runs at water pipe 12 and extends and install.

From can be to the viewpoint of water pipe 12 homogeneous heatings, fin 40 be arranged in the burning gases path 18 on the water pipe 12 near configuration in burning gases passage opening section 20 1 sides, 50%～60% scope.

On the above-mentioned boiler 1, at first, fuel burns in combustion chamber 17, and the burning gases that burning produces are to the inboard water pipe groups 121 of the water pipe 11(of 17 configurations round the combustion chamber) inner water heats.Secondly, burning gases 17 enter burning gases path 18 and circulation through combustion chamber openings sections 19 from the combustion chamber, further to the inboard water pipe group 121 of water pipe 12(and outside water pipe group 122) inner water heats.Then, flow through the burning gases of burning gases path 18 from burning gases passage opening section 20 by moving and finally be discharged to aiutage 30 by burning gases discharge portion 15.

In the present embodiment, on the water pipe near the 19 1 sides configuration of combustion chamber openings section in the inner one side of the water pipe 12 that consists of inboard water pipe group 121 and burning gases path 18, there is not installation fins 40; On the water pipe near the 20 1 sides configuration of burning gases passage opening section in burning gases path 18, fin 40 is housed.Thus, the combustion chamber 17 that the high-temperature combustion gas that has just produced after the fuel combustion is flowed through and be configured near the combustion chamber openings section 19 water pipes 12 can not occur overheated.On the other hand, the downstream position of the burning gases path 18 that descends at burning gas temperature owing on the water pipe 12 fin 40 is housed, therefore can be more effectively conducts heat to the water of water pipe 12 inside.Can heat more equably water pipe 12 thus.

In addition, in the present embodiment, the burning gases that produce in the combustion chamber 17, from boiler framework 11 on the combustion chamber openings section 19 of burning gases discharge portion 15 opposite location settings move to burning gases path 18.Then 17 burning gases that move to burning gases path 18 from the combustion chamber as shown in Figure 1, are divided into the two-way burning gases path 18 of flowing through, and enter discharge portion 50 finally by crossing burning gases passage opening section 20.

The inside of water pipe 12, from being configured in the lower header 13 of water pipe 12 bottoms, water is supplied to.And, become steam at water pipe 12 inner heated water, then be supplied to steam suppling tube (not shown) from upper collecting chamber 14.

The boiler 1 of present embodiment according to the above description can be obtained following effect.

(1) there is not installation fins 40 in the inner one side of the water pipe 12 that consists of inboard water pipe group 121 and the water pipe 12 that is configured in combustion chamber openings section 19 1 sides; Water pipe near the 20 1 sides configuration of burning gases passage opening section in burning gases path 18 is equipped with fin 40.Thus, the combustion chamber 17 that the high-temperature combustion gas that has just produced after the fuel combustion is flowed through and be configured near the combustion chamber openings section 19 water pipes 12 can not occur overheated.On the other hand, the downstream position of the burning gases path 18 that descends at burning gas temperature owing on the water pipe 12 fin 40 is housed, therefore can be more effectively conducts heat to the water of water pipe 12 inside.Can heat more equably water pipe 12 thus.

(2) inboard water pipe group 121 is consistent with outside water pipe group 122 central shaft each other, thus burning gases path 18 from swim over to the downstream, the width of whole section path is consistent.Can heat more equably water pipe 12 thus.

(3) 40 of fins are installed on the water pipe 12 that disposes in close burning gases passage opening section 20 1 sides, 50%～60% scope in the burning gases path 18, can heat more equably water pipe 12 thus.

(4) fin 40 along continuous straight runs extend to be installed, so the flow direction of the burning gases that fin 40 can be in burning gases path 18 is configured, by to the free increase that prevents resistance of the reasonable disposition of fin 40.

Certainly, above-described embodiment only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow people can understand content of the present utility model and implements according to this, can not limit protection domain of the present utility model with this.All equivalent transformation or modifications of doing according to the Spirit Essence of the utility model main technical schemes all should be encompassed within the protection domain of the present utility model.

Claims (3)

1. boiler, comprise tank body (10), described tank body (10) comprises the combustion chamber (17) of combustion fuel, be arranged in the many water pipes (12) in this outside, combustion chamber, be positioned at the boiler framework (11) in the described water pipe outside, and the upper burning gases outlet (15) that is used for discharging the burning gases that produce in the described combustion chamber (17) that arranges of described boiler framework (11), it is characterized in that: described water pipe (12) distributes in the form of a ring on every side in described combustion chamber and forms inboard water pipe group (121), distributing in the form of a ring in inboard water pipe group's the outside forms outside water pipe group (122) again, and is formed with burning gases path (18) between described inboard water pipe group (121) and the outside water pipe group (122); Described inboard water pipe group (121) is provided with the combustion chamber openings section (19) that is communicated with described combustion chamber (17) and described burning gases path (18), and described outside water pipe group (122) is provided with the burning gases passage opening section (20) that is communicated with described burning gases path (18) and described burning gases outlet (15); At the described water pipe of the midstream and downstream area configurations of described burning gases path, be provided with several fins (40) that axially spaced-apart distributes on this water pipe.

2. boiler according to claim 1 is characterized in that: described fin (40) is arranged in the described burning gases path on the described water pipe (12) near configuration in described burning gases passage opening section one side, 50% ~ 60% scope.

3. boiler according to claim 1 and 2 is characterized in that: described fin (40) extends at the upper along continuous straight runs of water pipe (12) to be installed.

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