Dust generating device

Abstract

The utility model discloses a dust generating device, which is used for blowing dust into a dust removing mechanism for a test, and comprises a device body, the device body comprises a base and a bottom positioned in the vertical direction of the device body, and a driver is arranged on the base; the vibration mechanism is located at the top of the device body in the vertical direction, and the vibration mechanism comprises a micro direct-current vibration motor with the adjustable vibration magnitude; the air blowing mechanism is arranged between the base and the vibration mechanism, and the air blowing mechanism comprises a funnel communicated with the vibration mechanism and a brushless direct current air blower with adjustable rotating speed; the driver drives the brushless direct-current air blower to blow dust into the dust removal mechanism from the funnel. According to the utility model, the vibration magnitude of the micro direct-current vibration motor and the rotating speed of the brushless direct-current blower are adjustable, so that the effect of uniform dust generation is realized, the dust generation rate can be comprehensively adjusted, and the accuracy of a test result is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of dust generating equipment, in particular to a dust generating device. Background Art

[0002] Dust removal efficiency is an important parameter for testing the dust collection capacity of dust removal mechanisms, and is also an important technical indicator that reflects the effectiveness of dust collectors. When conducting dust removal efficiency tests, dust generation is usually carried out by manually supplying dust at the entrance of the dust removal mechanism. However, the manual dust supply method is greatly affected by human factors, which may cause problems such as uneven dust at the entrance of the dust collector and uneven dust spreading rate, and these problems often cause large deviations in test results.

[0003] It can be seen that it is very important to study a dust-generating device that can generate dust evenly for measuring dust removal efficiency. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a dust generating device for blowing dust into a dust removal mechanism under test, comprising a device body, wherein the device body comprises:

[0005] A base, located at the bottom of the device body in the vertical direction, and a driver is arranged on the base;

[0006] A vibration mechanism, located at the top of the device body in the vertical direction, the vibration mechanism comprising a micro DC vibration motor with adjustable vibration level; and

[0007] The blowing mechanism is placed between the base and the vibration mechanism, and includes a funnel connected to the vibration mechanism and a brushless DC blower with adjustable speed; the driver drives the brushless DC blower to blow dust from the funnel into the dust removal mechanism.

[0008] Furthermore, at least two first columns are provided on the edge of the base along the vertical direction, and the first columns form a structure that partially wraps the brushless DC blower.

[0009] Furthermore, a vibration motor potentiometer and a fan potentiometer are also provided on the first column. The vibration motor potentiometer can adjust the vibration level of the micro DC vibration motor; the fan potentiometer can adjust the rotation speed of the brushless DC blower.

[0010] Furthermore, the funnel is fixedly connected to the top of the brushless DC blower, and a second column matching the cross-section of the first column is vertically arranged on the outer side wall of the funnel, and the second column is fixedly connected to the first column.

[0011] Furthermore, the vibration mechanism also includes a screen, and the micro DC vibration motor is arranged relative to the outer side wall of the screen.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model realizes the effect of uniform dust generation and the comprehensive adjustment of the dust generation rate by adjusting the vibration magnitude of the micro DC vibration motor and the rotation speed of the brushless DC blower, thereby enhancing the accuracy of the test result. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is an exploded view of the utility model.

[0016] In the figure: 100, device body; 110, base; 111, first column; 112, driver; 113, vibration motor potentiometer; 114, fan potentiometer; 120, vibration mechanism; 121, micro DC vibration motor; 122, screen; 130, blowing mechanism; 131, funnel; 132, brushless DC blower; 133, second column. DETAILED DESCRIPTION

[0017] In order to make the technical scheme and technical effect of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments.

[0018] Example

[0019] like Figure 1 As shown, the utility model provides a dust generating device for evenly blowing dust into the dust removal mechanism under test. The dust generating device includes a main body 100, and the main body 100 includes a base 110, a vibration mechanism 120 and a blast mechanism 130. The base 110 is located at the bottom of the main body 100 in the vertical direction; the vibration mechanism 120 is located at the top of the main body 100 in the vertical direction; and the blast mechanism 130 is arranged between the base 110 and the vibration mechanism 120. Specifically:

[0020] At least two first columns 111 are arranged along the vertical direction at the edge of the base 110, and the first columns 111 form a structure that partially wraps the brushless DC blower 132. The first columns 111 are provided with a vibration motor potentiometer 113 and a blower potentiometer 114; and the base 110 is also provided with a driver 112.

[0021] The vibration mechanism 120 includes a circular screen 122 , and two micro DC vibration motors 121 are disposed opposite to each other on the outer side walls of the screen 122 . The vibration motor potentiometer 113 can adjust the vibration level of the micro DC vibration motor 121 .

[0022] The blowing mechanism 130 includes a funnel 131 and a brushless DC blower 132. The screen 122 is connected to the funnel 131, and the funnel 131 is fixedly connected to the top of the brushless DC blower 132. The fan potentiometer 114 can adjust the speed of the brushless DC blower 132. The outer wall of the funnel 131 is provided with a second column 133 that matches the cross section of the first column 111 in the vertical direction, and the second column is fixedly connected to the first column 111. The driver 112 drives the brushless DC blower 132 to blow dust from the funnel 131 into the dust removal mechanism.

[0023] The dust generating device is also provided with a weighing mechanism, which is a prior art and will not be described in detail here.

[0024] The working principle of this embodiment is as follows:

[0025] Before the dust removal efficiency test, the dust generating device is weighed and recorded as M1 grams, N1 grams of dust is poured into the screen 122, the vibration motor potentiometer 113 is used to adjust the vibration level of the micro DC vibration motor 121, and the dust is sieved into the funnel 131 in a vibrating manner; thus, the driver 112 drives the brushless DC blower 132 to evenly blow the dust in the funnel 131 into the dust removal mechanism under test, wherein the speed of the brushless DC blower 132 can be adjusted by the fan potentiometer 114. After the test, the dust generating device is weighed again and recorded as M2 grams, and the weight of the dust collected by the dust removal mechanism under test is recorded as N2 grams, then the dust removal efficiency ξ satisfies the formula:

[0026]

[0027] Compared with the method of manually supplying dust, the utility model achieves the effect of uniform dust generation and the comprehensive adjustment of the dust generation rate by adjusting the vibration level of the micro DC vibration motor and the rotation speed of the brushless DC blower, thereby enhancing the accuracy of the test results.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust generating device for blowing dust into a dust removal mechanism under test, comprising a device body (100), characterized in that: The device body (100) comprises: A base (110) is located at the bottom of the device body (100) in the vertical direction, and a driver (112) is arranged on the base (110); A vibration mechanism (120) is located at the top of the device body (100) in the vertical direction, and the vibration mechanism (120) includes a micro DC vibration motor (121) with adjustable vibration level; and The air blowing mechanism (130) is disposed between the base (110) and the vibration mechanism (120), and comprises a funnel (131) connected to the vibration mechanism (120) and a brushless DC blower (132) with adjustable speed; the driver (112) drives the brushless DC blower (132) to blow dust from the funnel (131) into the dust removal mechanism.

2. The dust generating device according to claim 1, characterized in that: At least two first columns (111) are arranged on the edge of the base (110) in a vertical direction, and the first columns (111) form a structure that partially wraps the brushless DC blower (132).

3. The dust generating device according to claim 2, characterized in that: A vibration motor potentiometer (113) and a fan potentiometer (114) are also provided on the first column (111); the vibration motor potentiometer (113) can adjust the vibration magnitude of the micro DC vibration motor (121); and the fan potentiometer (114) can adjust the rotation speed of the brushless DC blower (132).

4. The dust generating device according to claim 2, characterized in that: The funnel (131) is fixedly connected to the top of the brushless DC blower (132); a second column (133) matching the cross section of the first column (111) is provided on the outer side wall of the funnel (131) in the vertical direction; the second column (133) is fixedly connected to the first column (111).

5. The dust generating device according to claim 1, characterized in that: The vibration mechanism (120) further comprises a screen (122), and the micro DC vibration motor (121) is arranged relative to the outer side wall of the screen (122).

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