CN214310584U - Circular horizontal air duct gas flow measuring device - Google Patents
Circular horizontal air duct gas flow measuring device Download PDFInfo
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- CN214310584U CN214310584U CN202120505228.1U CN202120505228U CN214310584U CN 214310584 U CN214310584 U CN 214310584U CN 202120505228 U CN202120505228 U CN 202120505228U CN 214310584 U CN214310584 U CN 214310584U
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- air duct
- rotating shaft
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- gas flow
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- 238000005259 measurement Methods 0.000 abstract description 6
- 230000004069 differentiation Effects 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 4
- 239000011449 brick Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000004722 stifle Anatomy 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model discloses a circular horizontal air duct gas flow measuring device, which comprises an air duct, wherein a positioning sleeve is fixed in the air duct, a rotating shaft is connected in the positioning sleeve in a rotating way, and a main propeller and side propellers positioned at two sides of the main propeller are fixed on the rotating shaft; a driving gear is arranged on the left side of the rotating shaft, the top of the driving gear is connected with a driven gear in a meshed mode, a wheel shaft on the top of the driven gear is fixedly connected with a ring counter, and a meter electrically connected with the ring counter is fixed on the air channel; the wheel diameter of the driving gear is larger than that of the driven gear; the utility model is provided with the rotating shaft, the main propeller and the side propeller, and the number of turns of the rotating shaft driven by the propellers is used for measuring the air speed of the air duct at the moment, thereby inferring the flow rate, the structure is simple, the assembly and disassembly are convenient, and the later-stage reconstruction is facilitated; the utility model discloses still set up driving gear and driven gear, promoted the rotation number of turns of pivot, can promote number of turns measuring differentiation and distinguish the degree, promote its measurement accuracy.
Description
Technical Field
The utility model relates to a flow test field especially relates to a circular horizontal air duct gas flow measuring device.
Background
Flow rate is the amount of fluid passing through a cross section of a pipe or device per unit time. The flow rate is divided into three types, that is, a mass flow rate, a weight flow rate, and a volume flow rate, which correspond to a mass of fluid, a weight of fluid, and a volume of fluid passing through the flow rate per unit time. The flow metering modes can be mutually converted, so that one of the flow metering modes can be measured theoretically during measurement, the measurement can be completed, the conversion is carried out, and different measurement structures and methods can be selected under different conditions. The air duct is built by concrete, bricks and other materials, is used for a channel for air circulation, and is added with a fire valve when a general air pipe is connected into the air duct according to the fire-fighting and fire-preventing requirements. Because the access positions of a plurality of air pipes are different, the access quantity is different, if the flow total amount is calculated, the problem of structural redundancy exists, the channel burden is larger, the budget cost is larger, the actual use effect is not good enough, and the later-stage modification is not convenient.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a circular horizontal air duct gas flow measuring device.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a circular horizontal air duct gas flow measuring device comprises an air duct, wherein a positioning sleeve is fixed in the air duct, a rotating shaft is rotatably connected in the positioning sleeve, and a main propeller and side propellers positioned on two sides of the main propeller are fixed on the rotating shaft; a driving gear is arranged on the left side of the rotating shaft, a driven gear is meshed and connected to the top of the driving gear, a wheel shaft at the top of the driven gear is fixedly connected with a circle counter, and a meter electrically connected with the circle counter is fixed on the air channel; the diameter of the driving gear is larger than that of the driven gear.
Preferably, the positioning sleeves at two ends are vertically fixed on the inner wall of the air duct, and a support shaft is connected between the central positioning sleeve and the inner wall of the air duct.
Preferably, the driving gear and the driven gear are both bevel gears.
Preferably, the cross-sectional area of the side propellers is smaller than the cross-sectional area of the main propeller.
Preferably, end shaft parts are arranged at two ends of the rotating shaft, two bearings are mounted on the end shaft parts, and a limiting sleeve is abutted between the two bearings; the right side of the air duct is fixed with a blank cap, and the left side of the air duct is fixed with a transparent cap penetrated by the rotating shaft.
Preferably, a plurality of air ports are arranged on the air duct, and the rotating shaft is arranged between two adjacent air ports.
The utility model has the advantages that: firstly, the utility model is provided with the rotating shaft, the main propeller and the side propeller, and the number of turns of the rotating shaft driven by the propeller is used for measuring the air speed of the air channel at the moment, thereby inferring the flow rate, the structure is simple and convenient for disassembly and assembly, and the later-stage reconstruction is facilitated; secondly, set up driving gear and driven gear, promoted the rotation number of turns of pivot, can promote the number of turns measurement differentiation degree, promote its measurement accuracy.
Drawings
Fig. 1 is a schematic front view of the measuring device of the present invention;
fig. 2 is a right-side view structural diagram of the measuring device of the present invention.
Reference numbers in the figures: the wind channel of 1 wind channel, 2 location sleeve, 3 pivots, 4 main propellers, 5 side propellers, 6 driving gears, 7 driven gears, 8 meter circle ware, 9 strapping table, 10 end axial region, 11 bearings, 12 spacing sleeves, 13 stifles, 14 pass through the lid, 15 fulcrum shafts, 16 wind gaps.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following specific embodiments, and it should be understood that the described embodiments are only some embodiments, but not all embodiments of the present invention.
Referring to fig. 1 and 2, the circular horizontal air duct gas flow measuring device comprises an air duct 1, wherein a positioning sleeve 2 is fixed in the air duct 1, a rotating shaft 3 is rotatably connected in the positioning sleeve 2, and a main propeller 4 and side propellers 5 positioned at two sides of the main propeller 4 are fixed on the rotating shaft 3; a driving gear 6 is arranged on the left side of the rotating shaft 3, the top of the driving gear 6 is engaged with a driven gear 7, a wheel shaft on the top of the driven gear 7 is fixedly connected with a ring counter 8, and a meter 9 electrically connected with the ring counter 8 is fixed on the air duct 1; the diameter of the driving gear 6 is larger than that of the driven gear 7.
In this embodiment, the positioning sleeves 2 at both ends are vertically fixed to the inner wall of the air duct 1, and a support shaft 15 is connected between the central positioning sleeve 2 and the inner wall of the air duct 1.
In the present embodiment, the drive gear 6 and the driven gear 7 are both bevel gears.
In the present embodiment, the cross-sectional area of the side propellers 5 is smaller than the cross-sectional area of the main propeller 4.
In the present embodiment, end shaft portions 10 are provided at both ends of the rotating shaft 3, two bearings 11 are mounted on the end shaft portions 10, and a limiting sleeve 12 is abutted between the two bearings 11; a blank cover 13 is fixed on the right side of the air duct 1, and a transparent cover 14 penetrated by the rotating shaft 3 is fixed on the left side of the air duct 1.
In this embodiment, the air duct 1 is provided with a plurality of air ports 16, and the rotating shaft 3 is installed between two adjacent air ports 16.
The working principle is as follows: the wind coming from the air channel 1 blows the main propeller 4 and the side propeller 5, so as to drive the rotating shaft 3 to rotate, the driving gear 6 drives the head gear 7 to rotate, the number of turns is calculated by the circle counter 8, the corresponding number of turns is converted into the corresponding wind speed, and then the wind speed and the wind quantity are displayed by the meter 9; the device has the advantages that the engineering quantity is extremely small, the device is used for the air duct 1, can be arranged at a plurality of positions, can adapt to the change of the air speed in the air duct 1, and can accurately measure the air passing through the positions of a plurality of air pipes, so that the load of the air duct 1 is small; further, this device design driven gear 7 wheel footpath is less than driving gear 6, enables the degree of distinguishing of various wind speeds higher, has promoted the measuring precision.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The circular horizontal air duct gas flow measuring device is characterized by comprising an air duct (1), wherein a positioning sleeve (2) is fixed in the air duct (1), a rotating shaft (3) is rotatably connected in the positioning sleeve (2), and a main propeller (4) and side propellers (5) positioned on two sides of the main propeller (4) are fixed on the rotating shaft (3); a driving gear (6) is arranged on the left side of the rotating shaft (3), a driven gear (7) is meshed and connected to the top of the driving gear (6), a wheel shaft on the top of the driven gear (7) is fixedly connected with a circle counter (8), and a meter (9) electrically connected with the circle counter (8) is fixed on the air duct (1); the wheel diameter of the driving gear (6) is larger than that of the driven gear (7).
2. A circular horizontal duct gas flow measuring device according to claim 1, characterized in that the locating sleeves (2) at both ends are vertically fixed on the inner wall of the duct (1), and a fulcrum (15) is connected between the central locating sleeve (2) and the inner wall of the duct (1).
3. A circular horizontal duct gas flow measuring device according to claim 1, characterized in that the driving gear (6) and the driven gear (7) are bevel gears.
4. A circular horizontal duct gas flow measuring device according to claim 1, characterized in that the cross-sectional area of the side propellers (5) is smaller than the cross-sectional area of the main propellers (4).
5. The circular horizontal air duct gas flow measuring device according to claim 1, wherein end shaft portions (10) are arranged at two ends of the rotating shaft (3), two bearings (11) are mounted on the end shaft portions (10), and a limiting sleeve (12) is abutted between the two bearings (11); a blank cap (13) is fixed on the right side of the air duct (1), and a transparent cap (14) penetrated by the rotating shaft (3) is fixed on the left side of the air duct (1).
6. A circular horizontal duct gas flow measuring device according to claim 1, characterized in that a plurality of tuyeres (16) are provided in the duct (1), and the rotating shaft (3) is installed between two adjacent tuyeres (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120505228.1U CN214310584U (en) | 2021-03-09 | 2021-03-09 | Circular horizontal air duct gas flow measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120505228.1U CN214310584U (en) | 2021-03-09 | 2021-03-09 | Circular horizontal air duct gas flow measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214310584U true CN214310584U (en) | 2021-09-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120505228.1U Active CN214310584U (en) | 2021-03-09 | 2021-03-09 | Circular horizontal air duct gas flow measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214310584U (en) |
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2021
- 2021-03-09 CN CN202120505228.1U patent/CN214310584U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240530 Address after: No. 014, Dongsanwang Village, Dayang Town, Dongping County, Tai'an City, Shandong Province, 271000 Patentee after: Li Xujie Country or region after: China Address before: Room 402c, School of software, Nanjing University, No.2, Xinke 2nd Road, Jiangbei new district, Nanjing City, Jiangsu Province, 210000 Patentee before: NANJING TONGLUO AUTOMATION TECHNOLOGY Co.,Ltd. Country or region before: China |
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| TR01 | Transfer of patent right |