CN213630502U - High-efficient nozzle device of overgrate air - Google Patents
High-efficient nozzle device of overgrate air Download PDFInfo
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- CN213630502U CN213630502U CN202021691192.2U CN202021691192U CN213630502U CN 213630502 U CN213630502 U CN 213630502U CN 202021691192 U CN202021691192 U CN 202021691192U CN 213630502 U CN213630502 U CN 213630502U
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Abstract
The utility model discloses a high-efficient nozzle device of overgrate air, which comprises a pipe body, the inside water conservancy diversion structure that makes the air current form the whirl that is equipped with of body. The flow guide structure is characterized in that fan blade type rotational flow blades are arranged in the pipe body, and a positioning shaft is arranged in the middle of each fan blade type rotational flow blade. The flow guide structure is a spiral inner rifling processed on the inner wall of the pipe body. Compared with the prior art, the utility model the advantage be: on the basis of the traditional direct blowing type secondary air nozzle, fan blade type rotational flow blades are added in the nozzle or a spiral inner hearth line is processed, so that secondary air is sprayed into a hearth in a rotational flow state, and air flow has better disturbance and penetrating power. The secondary wind disturbance and the penetrating power are increased; the air pressure of the secondary fan is reduced, and the operation cost is reduced; the burnout rate of the fuel is increased, and the efficiency of the boiler is improved.
Description
Technical Field
The utility model relates to a biomass boiler accessory especially relates to a high-efficient nozzle device of overgrate air.
Background
The secondary air of the biomass boiler is generally sprayed into the hearth at a high speed through a direct-blowing small pipe, in order to achieve the disturbance effect, a high-pressure fan is often needed to be configured to improve the pressure head of the secondary air, the penetrability of the secondary air is improved, the operation cost is high, and the disturbance effect is poor. Therefore, the development of a secondary air high-efficiency nozzle device becomes a problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model provides a solve above-mentioned not enough, provide a high-efficient nozzle device of overgrate air.
The above object of the present invention is achieved by the following technical solutions: the utility model provides a high-efficient nozzle device of overgrate air, includes the body, the inside water conservancy diversion structure that makes the air current form the whirl that is equipped with of body.
Furthermore, the flow guide structure is characterized in that fan blade type rotational flow blades are arranged in the pipe body, and a positioning shaft is arranged in the middle of each fan blade type rotational flow blade.
Further, the flow guide structure is a spiral inner rifling machined on the inner wall of the pipe body.
When the secondary air enters the hearth, the secondary air forms rotational flow airflow to enter the hearth under the action of the flow guide structure (the fan blade type rotational flow blades or the spiral inner hearth lines).
Compared with the prior art, the utility model the advantage be: on the basis of the traditional direct blowing type secondary air nozzle, fan blade type rotational flow blades are added in the nozzle or a spiral inner hearth line is processed, so that secondary air is sprayed into a hearth in a rotational flow state, and air flow has better disturbance and penetrating power. The secondary wind disturbance and the penetrating power are increased; the air pressure of the secondary fan is reduced, and the operation cost is reduced; the burnout rate of the fuel is increased, and the efficiency of the boiler is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a cross-sectional view at a-a in fig. 1.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, the high-efficiency secondary air nozzle device comprises a pipe body 1, and a flow guide structure for forming a rotational flow of air flow is arranged in the pipe body 1.
Furthermore, the flow guide structure is characterized in that fan blade type rotational flow blades 2 are arranged in the pipe body, and positioning shafts 3 are arranged in the middle of the fan blade type rotational flow blades 2.
Further, the flow guide structure is a spiral inner rifling (not shown) processed on the inner wall of the tube body.
When the secondary air enters the hearth, the secondary air forms rotational flow airflow to enter the hearth under the action of the flow guide structure (the fan blade type rotational flow blades or the spiral inner hearth lines).
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (1)
1. The utility model provides a high-efficient nozzle device of overgrate air which characterized in that: the air-flow-guiding device comprises a pipe body, wherein a flow-guiding structure which enables air flow to form rotational flow is arranged in the pipe body; the flow guide structure is characterized in that fan blade type rotational flow blades are arranged in the pipe body, and positioning shafts are arranged in the middle of the fan blade type rotational flow blades; the flow guide structure is a spiral inner rifling processed on the inner wall of the pipe body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021691192.2U CN213630502U (en) | 2020-08-14 | 2020-08-14 | High-efficient nozzle device of overgrate air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021691192.2U CN213630502U (en) | 2020-08-14 | 2020-08-14 | High-efficient nozzle device of overgrate air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213630502U true CN213630502U (en) | 2021-07-06 |
Family
ID=76644269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021691192.2U Active CN213630502U (en) | 2020-08-14 | 2020-08-14 | High-efficient nozzle device of overgrate air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213630502U (en) |
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2020
- 2020-08-14 CN CN202021691192.2U patent/CN213630502U/en active Active
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