Centering detection device of nozzle for bag type dust collector
By designing a nozzle alignment detection device in a bag filter, and using a guide shaft to contact the nozzle to detect nozzle eccentricity, the problem of filter bag damage caused by nozzle misalignment is solved, and convenient detection of nozzle alignment and reduction of dust concentration are achieved.
Patent Information
- Application Number
- CN202423122084.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-18
AI Technical Summary
In existing baghouse dust collectors, nozzle misalignment can cause filter bag damage, making it difficult to visually determine whether the nozzle is aligned, resulting in dust concentration emissions exceeding standards.
Design a nozzle alignment detection device for a bag filter, including a base, a flanged linear bearing, a guide shaft and a limiting ring. The device detects the nozzle's eccentricity by contacting the guide shaft with the nozzle, thus ensuring nozzle alignment.
It enables convenient detection of nozzle alignment, reduces filter bag damage, lowers dust concentration emissions, and has a simple structure with low investment.
Smart Images

Figure CN223602224U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to dust removal environmental protection technical field, concretely relates to a kind of nozzle's centering detection device for bag filter. BACKGROUND
[0002] As efficient dust removal equipment, bag filter is widely used in dust removal environmental protection field, and with the improvement of environmental protection standard, it becomes the mainstream equipment of fine particulate efficient purification.
[0003] Low-pressure pulse jet cleaning principle is to rely on the quick opening of pulse valve diaphragm, release compressed air in an instant, high-speed jet from nozzle, inject several times surrounding gas into bag, filter bag expands rapidly, and bag wall generates great acceleration, shake off filter cake, so as to realize cleaning.
[0004] When nozzle is inclined, high-speed airflow will scour filter bag side, causing filter bag damage. Now most are judged by visual observation whether nozzle is centered, since nozzle and flower plate hole are not in the same plane, it is difficult to judge whether nozzle is centered, and filter bag damage caused by nozzle inclination often occurs, thereby causing dust concentration discharge over standard condition. SUMMARY
[0005] The utility model provides a kind of nozzle's centering detection device for bag filter for the deficiency of prior art, conveniently detect whether nozzle is centered, reduce the problem of filter bag damage caused by nozzle inclination.
[0006] The technical solution of the utility model is: a kind of nozzle's centering detection device for bag filter, the device is installed on the flower plate of bag filter, the device includes base, flange linear bearing, the flange linear bearing is fixed with base by bolt and nut;The base is closely matched with flower plate;Guiding shaft is arranged on the flange linear bearing, the guiding shaft is matched with flange linear bearing, so that guiding shaft vertically slides up and down;Guiding shaft vertically slides up and contacts with bag filter nozzle.
[0007] Further, the lower part of the base is cylindrical structure, coaxial with the flower plate.
[0008] Further, the upper part of the guiding shaft is provided with a limiting ring.
[0009] Further, nut is installed at the tail end of the guiding shaft.
[0010] Further, the upper part of the guiding shaft is conical.
[0011] Guiding shaft can conveniently vertically slide up and down under the guidance of flange linear bearing.
[0012] The conical top of the guide shaft can conveniently detect whether the nozzle is eccentric.
[0013] The guide shaft is provided with a limiting ring at the upper portion and a nut at the tail end, so that the guide shaft can be prevented from falling off.
[0014] The beneficial technical effects of the utility model are that the nozzle centering can be conveniently detected, and the utility model has the characteristics of convenient installation, simple structure and low investment. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a structure diagram of a nozzle centering detection device for a bag-type dust collector.
[0016] In the figure, 1 is a nut, 2 is a flower plate, 3 is a base, 4 is a flange linear bearing, 5 is a guide shaft, 6 is a limiting ring, and 7 is a nozzle. DETAILED DESCRIPTION
[0017] The utility model will be further described in combination with the drawings and implementation examples.
[0018] The nozzle centering detection device for a bag-type dust collector comprises a nut 1, a flower plate 2, a base 3, a flange linear bearing 4, a guide shaft 5, a limiting ring 6 and a nozzle 7. The flange linear bearing 4 is fixed to the base 3 through a bolt and a nut. The guide shaft 5 is matched with the flange linear bearing 4, so that the guide shaft 5 vertically slides up and down. The upper portion of the guide shaft 5 is provided with the limiting ring 6. The tail end of the guide shaft 5 is provided with the nut 1. The base 3 is tightly matched with the flower plate 2. The guide shaft 5 can vertically slide up and contact the nozzle 7.
[0019] The lower portion of the base 3 is in a cylindrical structure, so that the base 3 can be tightly matched with the flower plate and coaxiality can be ensured.
[0020] The guide shaft 5 can conveniently vertically slide up and down under the guidance of the flange linear bearing 4.
[0021] The upper portion of the guide shaft 5 is conical, so that the nozzle centering can be conveniently detected.
[0022] The guide shaft 5 is provided with the limiting ring 6 at the upper portion and the nut 1 at the tail end, so that the guide shaft 5 can be prevented from falling off.
Claims
1. A centering detection device for a nozzle of a bag filter, said device being installed on a flower plate (2) of a bag filter, characterized in that The device comprises a base (3), a flange linear bearing (4) fixed with the base (3) by bolt and nut, the base (3) is tightly matched with a flower plate (2), a guide shaft (5) is arranged on the flange linear bearing (4), the guide shaft (5) is matched with the flange linear bearing (4) to make the guide shaft (5) vertically slide up and down, and the guide shaft (5) vertically slides up to contact a bag-type dust collector nozzle (7).
2. The centering detection device for a nozzle of a bag-type dust collector according to claim 1, characterized in that The lower part of the base (3) is a cylindrical structure and coaxial with the flower plate (2).
3. The centering detection device for a nozzle of a bag house according to claim 1, characterized in that The upper part of the guide shaft (5) is provided with a limiting ring (6).
4. The centering detection device for a nozzle of a bag-type dust collector according to claim 1, characterized in that The tail end of the guide shaft (5) is provided with a nut (1).
5. The centering detection device for a nozzle of a bag house according to claim 1, characterized in that The upper part of the guide shaft (5) is conical.