CN201047814Y - Dust generator for dust instrument checking device - Google Patents
Dust generator for dust instrument checking device Download PDFInfo
- Publication number
- CN201047814Y CN201047814Y CNU2007200907851U CN200720090785U CN201047814Y CN 201047814 Y CN201047814 Y CN 201047814Y CN U2007200907851 U CNU2007200907851 U CN U2007200907851U CN 200720090785 U CN200720090785 U CN 200720090785U CN 201047814 Y CN201047814 Y CN 201047814Y
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- dust
- valve plate
- tank
- valve mechanism
- generator
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Abstract
The utility model discloses a dust generator used for dust gauge checkout device, and comprises a tank. The mid-upper part of the tank that is vertical to the side wall of the tank has a valve mechanism, and the valve mechanism divides the tank into an upper section and a lower section; wherein, the lower section is a dust storage tank (10), and the upper section is a dust outlet tank (3); the dust top level and above of the dust storage tank (10) is provided with an inlet opening (9). A valve mechanism (8) is arranged above the inlet opening (9) and on the wall of the dust storage tank (10). When the valve mechanism (8) is opened, the dust can be added into the dust storage tank; the wall of the dust outlet tank (3) is provided with a dust outlet opening (4). An externally fixed fan answers for the blowing air into the lower section of the dust storage tank (10), leading to air-dust mixture with certain density under the drive the vortex airflow. According to the varied openness of the valve mechanism, the utility model differently supplies mixed air and dust to wind tunnel evenly and accurately; thereby realizing the equality and repetition of dust supplied with low density.
Description
Technical field
The utility model relates to a kind of dust generator that is used for the dust calibration equipment.
Background technology
Existing market adopts the box dust calibration equipment of the little low cost of manufacture of floor area mostly.Box dust calibration equipment significant disadvantage is exactly the verification environment that can not simulate under the physical environment flow conditions, especially colliery hoistway, tunnel cavern etc.Though wind tunnel type dust calibration equipment has the shortcoming that floor area is big, manufacturing cost is high, the dust atmosphere that it can effectively be simulated under the multiple air-flow wind friction velocity also is a kind of calibration equipment of the unique approval of coal industry.
Existing wind tunnel type dust calibration equipment adopts Brush type, scraper-type, steel ball oscillatory type, spiral sampling formula or the like mostly with the dust generator.These dust generators all are that dust is directly sent in proportion or sucked in the wind-tunnel according to concentration requirement.Owing to be directly dust to be sent into, and dust has absorption, glutinousness, therefore its ratio of sending into and homogeneity, repeatability all are difficult to control.This phenomenon was more outstanding when this required in low dust concentration verification, can present one one dust-contained airflow in the wind-tunnel, was difficult to reach good dirt homogeneity, the repeatability sent out.
The utility model content
The technical problems to be solved in the utility model provides a kind of dirt repeatability, still good dust generator of homogeneity given under low concentration.
For solving the problems of the technologies described above, dust generator of the present utility model comprises tank body, and the tank body middle and upper part direction vertical with tank wall is provided with valve mechanism, and this valve mechanism is divided into two parts up and down with tank body, the bottom of tank body is a dust storage container, and the top of tank body is for going out the dirt jar.The dust most significant digit has a valve mechanism to be provided with air inlet on the tank skin of the above dust storage container of air inlet in the dust storage container, beats this and opens valve mechanism can add dirt in dust storage container.The tank skin that goes out the dirt jar is provided with the dust mouth.
As a kind of improvement of the present utility model, valve mechanism is a transparency window formula valve mechanism.
As another kind of improvement the of the present utility model, valve mechanism comprises moving valve plate and fixed valve plate, the center of moving valve plate and valve rod stationary installation together, valve rod end device outward has handwheel, between moving valve plate, fixed valve plate and the tank skin for being sealed and matched.
As further improvement of the utility model, the structure of moving valve plate and fixed valve plate is identical, and plural scallop hole evenly is set on moving valve plate and fixed valve plate, and the radian of this scallop hole is not more than the radian of real plate between the scallop hole;
As further improvement of the utility model, be with sealing rubber cover at the circumference of moving valve plate and fixed valve plate, make the cooperation between moving valve plate, fixed valve plate and the tank body realize sealing.
As further improvement of the utility model, have scale on the handwheel.
As further improvement of the utility model, valve rod matches by bearing respectively with going out between dirt jar and the fixed valve plate.
As further improvement of the utility model, go out between dirt jar and the dust storage container for bolt is connected, and the bottom of dust storage container, coupling bolt and go out the dirt jar and jointly described valve mechanism is played fixing and supporting role.
As further improvement of the utility model, described dust generator also comprises a support that is positioned at the dust storage container bottom.
As further improvement of the utility model, described support has the leg that can regulate height.
Adopt structure of the present utility model, external blower fan is blown to the latter half of dust storage container by air inlet, make dust under the drive of eddy airstream, produce certain density gas dirt potpourri, and the gas dirt potpourri of different amounts evenly is provided to wind-tunnel through the dust mouth according to the aperture difference of valve mechanism; And the big valve mechanism of valve block diameter is opened wide ranges, and the gas dirt potpourri of flowing through has characteristics such as wide ranges, degree of regulation height, good linearity, the accurate control of giving dust quantity has also been realized giving the repeatability of dirt.After having adopted such structure, send out the dirt mode by in the past Brush type, scraper-type etc. directly the mode of powder feeding dirt change the dirt of under the control of valve mechanism, supplying gas into, dust density is little, fluid motion good, gas sample homogeneity height and gas dirt potpourri is compared.Thereby avoided having the problem of sending dirt homogeneity and poor repeatability under the low dust concentration that adsorbability and glutinousness bring because of dust.Valve mechanism is a transparency window formula valve mechanism, thereby is convenient to check that the consumption situation of dust in time adds dust, also need not set up observation element in addition more simultaneously, thereby simplify the structure of dust generator, makes its manufacturing process obtain simplifying.The valve mechanism of being made up of moving valve plate, fixed valve plate and handwheel is simple, is easy to realize and operation.It is simple that the concrete structure of employing scallop hole just gets valve structure, is easy to make.Being provided with of sealing rubber cover strengthened dust storage container and gone out impermeability between the dirt jar.Have scale on the handwheel and be convenient to the aperture of by-pass valve control exactly.Valve rod can make handwheel more firm with going out to match by bearing respectively between dirt jar and the fixed valve plate.Adopt the support to have made things convenient for cooperating of dust generator and wind-tunnel, height-adjustable leg is set on the support has further facilitated cooperating of dust generator and wind-tunnel.
Description of drawings
Be described in further detail below in conjunction with accompanying drawing and embodiment of the present utility model;
Fig. 1 is a cut-open view of the present utility model;
Fig. 2 is the structural representation of moving valve plate and fixed valve plate.
Embodiment
Dust generator shown in Figure 1 by dust storage container 10, air inlet 9, moving valve plate 1 and fixed valve plate 2, scale handwheel 6, bearing 5, sealing rubber cover 7, go out dirt jar 3, coupling bolt 12, valve mechanism 8, dust mouth 4, support 11 and form.
Wherein dust storage container 10 bottoms are cylindrical for conical, middle and upper part.Air inlet 9 is positioned at that the dust most significant digit is above, on the valve mechanism 8 following dust storage container tank skins.Moving valve plate 1 and fixed valve plate 2 are realized flat seal and dust storage container are divided into two parts up and down by cooperatively interacting.Moving valve plate 1 is identical with the structure of fixed valve plate 2.On moving valve plate 1 and fixed valve plate 2 plural scallop hole is set evenly, the radian of this scallop hole is not more than the radian of real plate between the scallop hole.Scale handwheel 6 is installed on the valve rod and has scale.Bearing 5 is installed on the fixed valve plate 2.Sealing rubber cover 7 is enclosed within moving valve plate and the fixed valve plate circumference seals.Go out dirt jar 3 and be positioned on moving valve plate and the fixed valve plate, and and coupling bolt 12, dust storage container together moving valve plate and fixed valve plate and sealing rubber cover thereof are played fixing and supporting role.Valve mechanism 8 is positioned on the dust storage container tank skin of air inlet top, valve mechanism below, and can open double as and add the use of dirt mouth.Dust mouth 4 is positioned at the roof of dirt jar 3.Support 11 supports whole dust generator under dust storage container.Support 11 also has height-adjustable leg, and the convenient height of dust generator of adjusting is to cooperate dust instrument calibration equipment.
Sealing rubber cover 7, the moving valve plate 1 of realizing flat seal by cooperatively interacting each other and fixed valve plate 2 are together realized the tank body sealing between two parts up and down.By the consumption situation that valve mechanism 8 can be observed inner dust, open valve mechanism 8 and can in dust storage container 10, add dust.The height of the convenient whole dust generator of support 11 and height-adjustable leg thereof matches with wind-tunnel.During use, external blower fan is blown to the latter half of dust storage container 10 by air inlet 9, make dust under the drive of eddy airstream, produce certain density gas dirt potpourri, and according to the aperture difference of valve mechanism, enter out dirt jar 3 and evenly, accurately provide the different gas dirt potpourris of measuring, the homogeneity and the repeatability that realize giving dirt to wind-tunnel through dust mouth 4 and external civilian mound nozzle; The aperture of valve mechanism is accurately controlled by the scale handwheel that has scale, gives dust quantity thereby regulate more exactly, realizes giving the repeatability of dirt better.
Certainly the utility model is not limited to above-mentioned embodiment, can also adopt other shape as all being up and down cylindrical as above-mentioned dust storage container 10; Valve mechanism also can adopt other valve; Dust mouth 4 also can be positioned at the sidewall of dirt jar 3; Valve rod and going out between dirt jar tank skin, the fixed valve plate also can link with axle sleeve, valve rod also can be only with go out one of dirt jar, fixed valve plate and link; Scale also can not be located on the handwheel and be located on the tank wall relevant position, or the like.Such conversion all drops within the protection domain of the present utility model.
Claims (9)
1. dust generator that is used for dust instrument calibration equipment, it is characterized in that: it comprises tank body, the tank body middle and upper part direction vertical with tank wall is provided with valve mechanism, this valve mechanism is divided into two parts up and down with tank body, the bottom of tank body is dust storage container (10), and the top of tank body is for going out dirt jar (3); The interior dust most significant digit of dust storage container (10) is to be provided with air inlet (9); A valve mechanism (8) is arranged on the tank skin of the above dust storage container of air inlet (9) (10), open valve mechanism (8) and can in dust storage container, add dirt; The tank skin that goes out dirt jar (3) is provided with dust mouth (4).
2. according to the described dust generator of claim 1, it is characterized in that: described valve mechanism is a transparency window formula valve mechanism.
3. according to the described dust generator of claim 1, it is characterized in that: described valve mechanism comprises moving valve plate (1) and fixed valve plate (2), the center of moving valve plate (1) and valve rod stationary installation are together, the outer end device of valve rod has handwheel (6), between moving valve plate (1), fixed valve plate (2) and the tank skin for being sealed and matched.
4. according to the described dust generator of claim 3, it is characterized in that: described moving valve plate (1) is identical with the structure of fixed valve plate (2), and on moving valve plate (1) and fixed valve plate (2), plural scallop hole being set evenly, the radian of this scallop hole is not more than the radian of real plate between the scallop hole.
5. according to the described dust generator of claim 4, it is characterized in that: the circumference at described moving valve plate (1) and fixed valve plate (2) is with sealing rubber cover (7), makes the cooperation between moving valve plate (1), fixed valve plate (2) and the tank body realize sealing.
6. according to the described dust generator of claim 5, it is characterized in that: described handwheel has scale on (6).
7. according to the described dust generator of claim 6, it is characterized in that: described valve rod matches by bearing respectively with going out between dirt jar (3) and the fixed valve plate (2).
8. according to each described dust generator in the claim 1 to 7, it is characterized in that: described dust generator also comprises a support (11) that is positioned at dust storage container (10) bottom.
9. according to the described dust generator of claim 8, it is characterized in that: described support (11) has the leg that can regulate height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200907851U CN201047814Y (en) | 2007-06-21 | 2007-06-21 | Dust generator for dust instrument checking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200907851U CN201047814Y (en) | 2007-06-21 | 2007-06-21 | Dust generator for dust instrument checking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201047814Y true CN201047814Y (en) | 2008-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200907851U Expired - Fee Related CN201047814Y (en) | 2007-06-21 | 2007-06-21 | Dust generator for dust instrument checking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201047814Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410975A (en) * | 2011-12-06 | 2012-04-11 | 青岛海纳光电环保有限公司 | Wind-tunnel smoke dust concentration generator calibrator |
| CN103234573A (en) * | 2013-04-22 | 2013-08-07 | 张家港朗亿机电设备有限公司 | Dust environment simulation equipment |
| CN104374875A (en) * | 2014-10-17 | 2015-02-25 | 深圳市日昇园林绿化有限公司 | Dust retention detection device |
| TWI611172B (en) * | 2016-10-27 | 2018-01-11 | 財團法人成大研究發展基金會 | A dust test machine capable of spreading dust equally |
| CN110006603A (en) * | 2019-04-18 | 2019-07-12 | 北京机械设备研究所 | A kind of sealing propertytest automation equipment and method |
-
2007
- 2007-06-21 CN CNU2007200907851U patent/CN201047814Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410975A (en) * | 2011-12-06 | 2012-04-11 | 青岛海纳光电环保有限公司 | Wind-tunnel smoke dust concentration generator calibrator |
| CN102410975B (en) * | 2011-12-06 | 2013-02-27 | 青岛海纳光电环保有限公司 | Wind-tunnel smoke dust concentration generator calibrator |
| CN103234573A (en) * | 2013-04-22 | 2013-08-07 | 张家港朗亿机电设备有限公司 | Dust environment simulation equipment |
| CN103234573B (en) * | 2013-04-22 | 2015-03-18 | 张家港朗亿机电设备有限公司 | Dust environment simulation equipment |
| CN104374875A (en) * | 2014-10-17 | 2015-02-25 | 深圳市日昇园林绿化有限公司 | Dust retention detection device |
| TWI611172B (en) * | 2016-10-27 | 2018-01-11 | 財團法人成大研究發展基金會 | A dust test machine capable of spreading dust equally |
| CN110006603A (en) * | 2019-04-18 | 2019-07-12 | 北京机械设备研究所 | A kind of sealing propertytest automation equipment and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEZHOU GUANGLI SCIENCE + TECHNOLOGY CO., LTD. Free format text: FORMER NAME: GUANGLI SCIENCE + TECHNOLOGY DEVELOPMENT CO., LTD., ZHENGZHOU |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 450001, No. ten, Chun Yang Road, hi tech, Zhengzhou, Zhengzhou, Henan Patentee after: Zhengzhou GL Tech Company Address before: 450001, No. ten, Chun Yang Road, hi tech, Zhengzhou, Zhengzhou, Henan Patentee before: Guangli Science & Technology Development Co., Ltd., Zhengzhou |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080416 Termination date: 20160621 |