CN218820486U

CN218820486U - Air cooling jacket device of biomass boiler feeder

Info

Publication number: CN218820486U
Application number: CN202222454718.0U
Authority: CN
Inventors: 倪惠; 周晓虎
Original assignee: Wuxi Xidong Energy Technology Co Ltd
Current assignee: Wuxi Xidong Energy Technology Co Ltd
Priority date: 2022-09-16
Filing date: 2022-09-16
Publication date: 2023-04-07
Anticipated expiration: 2032-09-16

Abstract

The utility model relates to a boiler feeder technical field specifically is a biomass boiler batcher air cooling jacket device, and it can guarantee stable heat transfer efficiency, improves the security, and it includes the screw feeder, the cooling jacket is installed to the shell of screw feeder, a serial communication port, install interval arrangement's annular baffle in the cooling jacket, the air via hole has been seted up in the inboard or outside of annular baffle, and is adjacent on the annular baffle the staggered arrangement forms baffling air runner inside and outside the air via hole, the cooling jacket has seted up the hot-air export on having seted up cold air inlet, the other end lateral wall on one end lateral wall, cold air inlet connects centrifugal fan.

Description

Air cooling jacket device of biomass boiler feeder

Technical Field

The utility model relates to a boiler feeder technical field specifically is a biomass boiler batcher air cooling jacket device.

Background

With the increasing shortage of fossil energy resources and the influence on the environment, the utilization of renewable biomass energy is rapidly developed, and biomass direct-combustion power generation is one of the important forms of biomass energy utilization. The screw feeder is an important terminal device in a stokehole feeding system of the biomass boiler, and the cooling jacket is an important connecting part between the screw feeder and the boiler. The boiler has the main effects of 1, playing a role in heat insulation, reducing the heat transferred to the screw feeder by the boiler, improving the service stability of the screw feeder and prolonging the service life of the screw feeder. 2. Because the cooling jacket has certain length, a material can be stored between the screw feeder and the boiler to form a slug, and the effects of preventing fire and reducing tempering and air leakage can be achieved. The existing cooling jacket adopts water cooling type. The water cooling jacket consists of an inner jacket, a partition plate and an outer jacket, wherein the inner jacket and the outer jacket are made of steel plate rolled surfaces to form an annular pressure vessel. The cooling water passes through the space between the inner sleeve and the outer sleeve, and has the advantages of simple structure, large heat transfer coefficient of water and high heat dissipation efficiency. The water cooling jacket has the disadvantages that the safety is poor, the temperature of the water cooling jacket rises rapidly under the condition of water shortage, a large amount of high-pressure steam is generated when the cooling water meets the high-temperature water cooling jacket when the water is supplied again, and the pressure rises rapidly. If the pipeline of the cooling water outlet pipe does not reach the time to discharge the high-pressure steam, the water cooling jacket is easy to explode, and safety production accidents occur. In addition, because water is stored in the water jacket, scale is easily formed in the water jacket after long-term operation, the heat transfer efficiency is influenced, and finally the inner jacket is overheated and deformed.

Disclosure of Invention

In order to solve the problem that the incrustation scale easily forms in the current water-cooling jacket and influences heat transfer efficiency, the security is poor, the utility model provides a biomass boiler batcher air cooling jacket device, it can guarantee stable heat transfer efficiency, improves the security.

The technical scheme is as follows: the utility model provides a biomass boiler batcher air cooling jacket device, its includes the screw feeder, cooling jacket is installed to the shell of screw feeder, its characterized in that, install interval arrangement's annular baffle in the cooling jacket, the air via hole has been seted up in annular baffle inboard or the outside, and is adjacent on the annular baffle stagger inside and outside the air via hole and arrange and form baffling air runner, set up cold air inlet on the cooling jacket one end lateral wall, set up the hot-air export on the other end lateral wall, cold air inlet connects centrifugal fan.

The air through holes are further characterized in that the air through holes are semi-circular holes arranged at intervals;

the hot air outlet is connected with an inlet of a three-way valve, one outlet of the three-way valve is communicated with the outside of the workshop, and the other outlet of the three-way valve is communicated with the inside of the workshop.

Adopt the utility model discloses afterwards, change into air medium in the cooling jacket, there is not the scale deposit phenomenon, flow in the cooling jacket and can not produce steam yet and cause the potential safety hazard, the annular baffle is connected with screw feeder's shell, and similar heat radiation fins's effect can increase heat transfer area to the air runner of baffling form can improve air flow rate, improves heat exchange efficiency greatly, prevents that screw feeder's shell from taking place thermal deformation, has guaranteed the security equally.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the inner side of the annular partition being perforated;

FIG. 3 is a schematic view of the outer side opening of the annular partition;

fig. 4 is a schematic view of the hot air flow.

Detailed Description

See fig. 1, fig. 2, fig. 3, fig. 4 shows, a biomass boiler batcher air cooling jacket device, it includes screw feeder 1, cooling jacket 2 is installed to screw feeder 1's shell, install interval arrangement's annular partition plate 3 in the cooling jacket 2, air via hole 4 has been seted up in 3 inboard or the outside of annular partition plate, stagger inside and outside arranging formation baffling air runner in air via hole 4 on adjacent annular partition plate 3, cooling jacket 2 has seted up cold air inlet 5 on one end lateral wall, hot air outlet 6 has been seted up on the other end lateral wall, centrifugal fan 7 is connected to cold air inlet 5.

The air passing holes 4 are semi-circular holes arranged at intervals. The import of hot-air outlet 6 connection three-way valve 8, an export intercommunication workshop of three-way valve 8 is outside, inside another export intercommunication workshop, under the general condition, the workshop is outside directly being arranged to the hot-blast of sending out from cooling jacket 2, can not cause the pollution to the environment, when needs use the hot-blast, can send back the workshop inside, for example when the workshop temperature is very low winter, can give the workshop intensification, cyclic utilization, in order to guarantee that cooling jacket does not block, can be in 7 department installation filters of centrifugal fan, filter some dusts.

Claims

1. The utility model provides a biomass boiler batcher air cooling jacket device, its includes the screw feeder, cooling jacket is installed to the shell of screw feeder, its characterized in that, install interval arrangement's annular baffle in the cooling jacket, the air via hole has been seted up in annular baffle inboard or the outside, and is adjacent on the annular baffle stagger inside and outside the air via hole and arrange and form baffling air runner, set up cold air inlet on the cooling jacket one end lateral wall, set up the hot-air export on the other end lateral wall, cold air inlet connects centrifugal fan.

2. The air-cooling jacket device of a biomass boiler feeder according to claim 1, characterized in that the air through holes are semi-circular holes arranged at intervals.

3. The air-cooling jacket device of a biomass boiler feeder according to claim 1, characterized in that the hot air outlet is connected with an inlet of a three-way valve, one outlet of the three-way valve is communicated with the outside of a workshop, and the other outlet of the three-way valve is communicated with the inside of the workshop.