CN205299500U

CN205299500U - Boiler cap

Info

Publication number: CN205299500U
Application number: CN201620053241.7U
Authority: CN
Inventors: 郭丰华
Original assignee: Hangzhou Shangcheng Environmental Technology Co Ltd
Current assignee: Hangzhou Shangcheng Environmental Technology Co Ltd
Priority date: 2016-01-20
Filing date: 2016-01-20
Publication date: 2016-06-08
Anticipated expiration: 2026-01-20

Abstract

The utility model discloses a boiler cap, including the hood body, hood body one end is airtight, and one end be the air intake, and the internal space of hood is bell jar form space, and air intake intercommunication bell jar form space bottom, the internal surface of hood are located the bell jar and describe the exhaust vent that evenly is provided with a row or multirow waist circular bottom the space on the anchor ring, and the exhaust vent is the downward sloping from inside to outside. This boiler cap's exhaust vent downward sloping from inside to outside, and all be waist - round hole, under the circumstances that the size of air supply volume was prescribed a limit to, this boiler cap can concentrate and accurate send wind to the furnace bottom, and then the most effective maximize ground looks after the bed material fluidization of furnace bottom, makes the siege bed of material bottom the furnace also remain fluidization boiling state throughout, and messenger's coal burns thoroughly to improve nitrogen oxide desorption rate, reduce nitrogen oxide's emission.

Description

A kind of Wind cap for boiler

Technical field

The utility model relates to a kind of CFBB parts, relates in particular to a kind of Wind cap for boiler.

Background technology

CFBB has fuel wide accommodation, desulfuration in furnace efficiency is high, nitrogen oxide emission is little, efficiency of combustion is high, load regulation rate is large and lime-ash such as can fully utilize at the advantage, has a wide range of applications in the field such as station boiler, Industrial Boiler.

In CFBB, Wind cap for boiler is also important composition parts, Wind cap for boiler is arranged on the air distribution plate of bottom, fluidized-bed combustion boiler combustion chamber, blast cap is inner to communicate with bellows, boiler air-supply is evenly transported in the siege bed of material, meet air required while burning, by controlling the size of air output, make the siege bed of material remain fluid boiling state, make coal burning thoroughly. But in actual production process, tend to occur that blast cap air-supply is mild, and cannot deliver to burner hearth bottom, affect the bed material fluidisation of burner hearth bottom, make coal burning not thorough.

Utility model content

For solving the problems of the technologies described above, the utility model has designed a kind of Wind cap for boiler.

The utility model adopts following technical scheme:

A kind of Wind cap for boiler, comprise blast cap body, blast cap body one end is airtight, one end is air inlet, blast cap intracorporeal space is bell jar shape space, air inlet is communicated with bottom, bell jar shape space, and blast cap body inner surface is positioned at the exhaust vent that is evenly provided with a row or multi-row oval shape on the anchor ring of bottom, bell jar shape space, and exhaust vent is downward-sloping from inside to outside.

As preferably, described exhaust vent is downward-sloping from the horizontal by 8 degree angles from inside to outside. Pilot production is summed up many times, and it is best wind direction that 8 degree angles coordinate oval shape exhaust vent.

As preferably, described blast cap body inner surface is positioned at the exhaust vents that are evenly provided with many row's oval shapes on the anchor ring of bottom, bell jar shape space, interlaced arrangement between the exhaust vent of adjacent two row's oval shapes. When the exhaust vent of arranging oval shapes, between the exhaust vent of adjacent two row's oval shapes, interlaced arrangement can effectively utilize exhaust vent, prevents from influencing each other between each row's exhaust vent more.

Compared with prior art, the exhaust vent of this Wind cap for boiler is downward-sloping from inside to outside, and be all oval hole, in the case of the size of air output limits, this Wind cap for boiler can be concentrated and accurately wind be delivered to burner hearth bottom, and then the most effective bed material fluidisation of looking after substantially burner hearth bottom, make the siege bed of material of burner hearth bottom also remain fluid boiling state, make coal burning thoroughly.

Brief description of the drawings

Fig. 1 is a kind of structural representation of the present utility model;

Fig. 2 is a kind of cutaway view at A-A place in Fig. 1;

Fig. 3 is the second structural representation of the present utility model;

Fig. 4 is a kind of cutaway view at B-B place in Fig. 3;

Fig. 5 is the third structural representation of the present utility model;

Fig. 6 is a kind of cutaway view at C-C place in Fig. 5;

Fig. 7 is a kind of cutaway view at D-D place in Fig. 5;

In figure: 1, blast cap body, 2, air inlet, 3, exhaust vent.

Detailed description of the invention

Below by specific embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is further described specifically:

Embodiment 1: as shown in Figures 1 and 2, a kind of Wind cap for boiler, comprise blast cap body 1, blast cap body one end is airtight, one end is air inlet 2, and blast cap intracorporeal space is bell jar shape space, and air inlet is communicated with bottom, bell jar shape space, blast cap body inner surface is positioned on the anchor ring of bottom, bell jar shape space and is evenly provided with the row exhaust vent 3 of totally four oval shapes, and exhaust vent is downward-sloping from the horizontal by 8 degree angles from inside to outside.

Embodiment 2: as shown in accompanying drawing 3 and accompanying drawing 4, a kind of Wind cap for boiler, comprise blast cap body, blast cap body one end is airtight, one end is air inlet, and blast cap intracorporeal space is bell jar shape space, and air inlet is communicated with bottom, bell jar shape space, blast cap body inner surface is positioned on the anchor ring of bottom, bell jar shape space and is evenly provided with the row exhaust vent of totally six oval shapes, and exhaust vent is downward-sloping from the horizontal by 8 degree angles from inside to outside.

Embodiment 3: as shown in accompanying drawing 5, accompanying drawing 6 and accompanying drawing 7, a kind of Wind cap for boiler, comprise blast cap body, blast cap body one end is airtight, one end is air inlet, blast cap intracorporeal space is bell jar shape space, air inlet is communicated with bottom, bell jar shape space, blast cap body inner surface is positioned at and on the anchor ring of bell jar shape space bottom, is evenly provided with the two rows rows exhaust vent of totally 12 oval shapes, the exhaust vent of 6 oval shapes of every row, the interlaced arrangement of exhaust vent of 6 oval shapes between two rows, exhaust vent is downward-sloping from the horizontal by 8 degree angles from inside to outside.

The exhaust vent of this Wind cap for boiler is downward-sloping from inside to outside, and be all oval hole, in the case of the size of air output limits, this Wind cap for boiler can be concentrated and accurately wind be delivered to burner hearth bottom, and then the bed of looking after the most substantially burner hearth bottom is expected fluidisation, make the siege bed of material of burner hearth bottom also remain fluid boiling state, make coal burning thoroughly. When the exhaust vent of arranging oval shapes, between the exhaust vent of adjacent two row's oval shapes, interlaced arrangement can effectively utilize exhaust vent more, prevents from influencing each other between each row's exhaust vent, thereby improves removal of nitrogen oxide rate, reduces the discharge capacity of nitrogen oxide.

Above-described embodiment is preferably scheme of one of the present utility model, not the utility model is done to any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technical scheme that claim records.

Claims

1. a Wind cap for boiler, comprise blast cap body, blast cap body one end is airtight, one end is air inlet, and blast cap intracorporeal space is bell jar shape space, and air inlet is communicated with bottom, bell jar shape space, blast cap body inner surface is positioned on the anchor ring of bottom, bell jar shape space and is evenly provided with exhaust vent, it is characterized in that, described blast cap body inner surface is positioned at the exhaust vent that is evenly provided with a row or multi-row oval shape on the anchor ring of bottom, bell jar shape space, and exhaust vent is downward-sloping from inside to outside.

2. a kind of Wind cap for boiler according to claim 1, is characterized in that, described exhaust vent is downward-sloping from the horizontal by 8 degree angles from inside to outside.

3. a kind of Wind cap for boiler according to claim 1, is characterized in that, described blast cap body inner surface is positioned at the exhaust vent that is evenly provided with many row's oval shapes on the anchor ring of bottom, bell jar shape space, interlaced arrangement between the exhaust vent of adjacent two row's oval shapes.