CN215588052U - D400 centrifugal fan gas seal scraping device - Google Patents
D400 centrifugal fan gas seal scraping device Download PDFInfo
- Publication number
- CN215588052U CN215588052U CN202022634008.7U CN202022634008U CN215588052U CN 215588052 U CN215588052 U CN 215588052U CN 202022634008 U CN202022634008 U CN 202022634008U CN 215588052 U CN215588052 U CN 215588052U
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- scraping
- air seal
- handle
- centrifugal fan
- shape
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Abstract
The utility model relates to a D400 centrifugal fan air seal scraping device which comprises a handle and a scraping sheet connected with the handle, wherein the front end of the scraping sheet is provided with a toothed scraping end head, the shape of the convex part of the scraping end head is matched with that of the concave part of a standard air seal tooth, and the shape of the concave part of the scraping end head is matched with that of the convex part of the standard air seal tooth. When the air seal is replaced, the device can scrape and grind a new air seal which does not meet the installation requirement, and scrape and grind the air seal gap to be within the designed installation size range of 20-30um, so that the installation precision is ensured, and the replacement time is shortened.
Description
Technical Field
The utility model relates to an air seal mounting tool, in particular to an air seal scraping device of a D400 centrifugal fan.
Background
The D400 type centrifugal fan is widely applied to a gas system, pressurizes gas to the operating range and meets the production requirements of users. However, the fan is affected by the medium components of the converter gas and the environment in the operation process, and potential safety hazards such as gas leakage and the like due to serious gas seal abrasion and increased clearance can occur in the operation process. Therefore, the air seal needs to be replaced in time, but the air seal clearance is often deviated from the designed installation size due to the reasons of manufacturing, transportation and the like of the air seal spare parts, so that the installation is time-consuming and labor-consuming, and the accuracy is insufficient.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in order to overcome the defects of the prior art, the utility model provides the D400 centrifugal fan air seal scraping device which can quickly and effectively scrape the air seal gap to be within the range of the designed installation size.
The technical scheme is as follows: the utility model relates to a D400 centrifugal fan air seal scraping device which comprises a handle and a scraping sheet connected with the handle, wherein the front end of the scraping sheet is provided with a toothed scraping end head, the shape of the convex part of the scraping end head is matched with that of the concave part of a standard air seal tooth, and the shape of the concave part of the scraping end head is matched with that of the convex part of the standard air seal tooth.
Specifically, in order to guarantee the scraping precision, the thickness of the scraping sheet is 3 +/-1 mm.
In order to improve the scraping efficiency, the scraping tip has 3-5 convex parts.
Has the advantages that: when the air seal is replaced, the device can scrape and grind a new air seal which does not meet the installation requirement, and scrape and grind the air seal gap to be within the designed installation size range of 20-30um, so that the installation precision is ensured, and the replacement time is shortened.
Drawings
FIG. 1 is a schematic view of a scraping apparatus according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in figure 1, the handle 1 of the D400 centrifugal fan air seal scraping device is a wooden handle, and the scraping blade 2 is a stainless steel thin sheet with the thickness of 3 +/-1 mm so as to ensure the scraping efficiency and precision.
In order to further improve the scraping efficiency, the scraping end is provided with 3-5 convex parts 21, so that a plurality of groups of air seal teeth of the air seal can be scraped simultaneously.
By configuring the convex portion 21 of the lapping tip to match the shape of the concave portion of a standard gas seal tooth, the concave portion 22 is configured to match the shape of the convex portion of a standard gas seal tooth. The new air seal gap which does not meet the installation requirement is scraped to be within the range of the design installation size of 20-30um, the installation precision is ensured, and the replacement time is shortened.
Claims (1)
1. A D400 centrifugal fan air seal scraping device is characterized by comprising a handle (1) and a scraping sheet (2) connected with the handle (1), wherein the front end of the scraping sheet (2) is provided with a toothed scraping end, the convex part (21) of the scraping end is matched with the concave part of a standard air seal tooth in shape, and the concave part (22) of the scraping end is matched with the convex part of the standard air seal tooth in shape; the thickness of the scraping sheet (2) is 3 +/-1 mm; said scraping tip having 3-5 raised portions (21); the handle (1) is a wood handle; the scraping sheet (2) is a stainless steel scraping sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022634008.7U CN215588052U (en) | 2020-11-13 | 2020-11-13 | D400 centrifugal fan gas seal scraping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022634008.7U CN215588052U (en) | 2020-11-13 | 2020-11-13 | D400 centrifugal fan gas seal scraping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215588052U true CN215588052U (en) | 2022-01-21 |
Family
ID=79868035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022634008.7U Active CN215588052U (en) | 2020-11-13 | 2020-11-13 | D400 centrifugal fan gas seal scraping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215588052U (en) |
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2020
- 2020-11-13 CN CN202022634008.7U patent/CN215588052U/en active Active
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