CN206583489U - Air quantity collector - Google Patents
Air quantity collector Download PDFInfo
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- CN206583489U CN206583489U CN201720284356.1U CN201720284356U CN206583489U CN 206583489 U CN206583489 U CN 206583489U CN 201720284356 U CN201720284356 U CN 201720284356U CN 206583489 U CN206583489 U CN 206583489U
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- air pressure
- pressure acquisition
- side air
- bar
- windward side
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Abstract
The utility model is related to a kind of air quantity collector.It includes center housing and four air pressure acquisition bars, the inner of four air pressure acquisition bars is connected to constitute crosswise with center housing, the front and rear sides of the air pressure acquisition bar is respectively equipped with multiple windward side air pressure acquisition holes and multiple leeward side air pressure acquisition holes, windward side air pressure acquisition passage and leeward side air pressure acquisition passage are provided with the air pressure acquisition bar along its length, the windward side air pressure acquisition hole is connected with windward side air pressure acquisition passage, and the center housing is provided with windward side air pressure collection chamber and leeward side air pressure collection chamber.Collection point on four air pressure acquisition bars of the present utility model is more, and be evenly distributed rationally, multiple different positions on whole pipeline on a cross section can be covered, the total head air-flow and static pressure air-flow of air pressure acquisition bar front and rear sides can be gathered, therefore the utility model collection is comprehensive, abundant, accurate, so as to ensure that the measurement result of air quantity collector is accurate.
Description
Technical field
The utility model is related to air quantity harvester technical field, particularly a kind of air quantity collector.
Background technology
Air quantity collector is a kind of for gathering the total head in vav terminal and the air-flow of static pressure, to be supplied to blast to survey
The air quantity harvester of difference, is commonly used to measure vav terminal between total head and static pressure in measuring device measurement vav terminal
Air inlet position total head and the pressure difference of static pressure.Existing air quantity collector is only by the special tube side-by-side of two root skins or so connection structure
Into two root skins spy's pipe gathers total head air-flow and static pressure air-flow in vav terminal respectively, but the special pipe of a root skin is collected
The point of total head air-flow or static pressure air-flow seldom, multiple different positions on whole pipeline, therefore the gas of collection is not covered
Stream is not comprehensive, therefore it is not very comprehensive, very accurate that existing air quantity collector, which collects air-flow, and then influences wind pressure measurement device
Measurement result.And existing air quantity collector is complicated, manufacturing process is complicated, installs inconvenient.
Utility model content
The purpose of this utility model is that providing a kind of simple and reasonable for structure, comprehensive, abundant, accurate air quantity of collection adopts
Storage.
What the purpose of this utility model was realized in：
A kind of air quantity collector, including center housing and four air pressure acquisition bars, the inner of four air pressure acquisition bars
It is connected with center housing to constitute crosswise, the front and rear sides of the air pressure acquisition bar is respectively equipped with multiple windward side air pressure
Gather and be provided with windward side air pressure acquisition passage in hole and multiple leeward side air pressure acquisition holes, the air pressure acquisition bar along its length
With leeward side air pressure acquisition passage, the windward side air pressure acquisition hole is connected with windward side air pressure acquisition passage, leeward side air pressure
Collection hole is connected with leeward side air pressure acquisition passage, and the center housing is provided with windward side air pressure collection chamber and leeward side air pressure
Collection chamber, the inner of the windward side air pressure acquisition passage is connected with windward side air pressure collection chamber, windward side air pressure acquisition passage
Outer end closing, the leeward side air pressure acquisition passage the inner connected with leeward side air pressure collection chamber, leeward side air pressure acquisition
Airflow delivery outlet is equipped with the outer end closing of passage, windward side air pressure collection chamber and leeward side the air pressure collection chamber.
The utility model can also be improved further below.
Length direction of the multiple windward side air pressure acquisition hole along windward side air pressure acquisition passage is arranged on air pressure and adopted
Collect the front side of bar, length direction of the multiple leeward side air pressure acquisition hole along leeward side is arranged on the rear side of air pressure acquisition bar,
This arrangement mode in windward side air pressure acquisition hole and leeward side air pressure acquisition hole causes air pressure acquisition bar acquisition range wide, collection
Comprehensively.
The multiple leeward side air pressure acquisition hole is in by interior gradually intensive shape outward, due to pipeline one on air pressure acquisition bar
Often shape distribution is gradually reduced in center in air current flow on individual section outward, therefore in order to which air pressure acquisition bar is adopted comprehensively, fully
Collect air-flow, air pressure acquisition bar gradually increases the quantity that leeward side gathers hole outward by interior.
The multiple windward side air pressure acquisition hole is in by interior gradually intensive shape outward on air pressure acquisition bar.Due to pipeline one
Often shape distribution is gradually reduced in center in air current flow on individual section outward, therefore in order to which air pressure acquisition bar is adopted comprehensively, fully
Collect air-flow, air pressure acquisition bar gradually increases the quantity that inlet side gathers hole outward by interior.
Windward side air pressure acquisition passage and leeward side the air pressure acquisition passage is located at forward and backward the two of air pressure acquisition bar respectively
Side.
The outer end of four air pressure acquisition bars is provided with installation foot, and four air pressure acquisition bars of the present utility model pass through respective
Installation foot be installed in pipeline, therefore the utility model is easy for installation, and the installation foot seals windward side air pressure acquisition passage
With the outer end of leeward side air pressure acquisition passage, so as to prevent windward side air pressure acquisition passage and leeward side air pressure acquisition passage
Airflow leaks, influence the collection of air-flow.
The air pressure acquisition bar is section bar, and section quality is light, intensity is high, durable in use, and section bar perforate and punching are logical
Road technique is simple, compared to existing air quantity collector, and simple in construction, firm, production of the present utility model is easy, production technology letter
It is single, easy for installation.
The air pressure acquisition bar heaves shape in middle part toward both sides up and down, can be specifically elliptical shape or diamond shaped.It is this
Structure design is exaggerated the draught head of air pressure acquisition bar front and rear sides, makes that differential pressure measurement scope is wider, and precision is higher.
The surface of the air pressure acquisition bar is provided with baffle convex tendon, and baffle convex tendon blocks the air-flow of windward side, and air pressure is adopted
The leeward side of collection bar forms bigger negative pressure region, so as to preferably be exaggerated the gas between air pressure acquisition bar front and rear sides
Pressure difference.
The beneficial effects of the utility model are as follows：
（One）Collection point on four air pressure acquisition bars of the present utility model is more, and is evenly distributed rationally, can cover whole
Multiple different positions on pipeline on a cross section, can gather the total head air-flow and static pressure of air pressure acquisition bar front and rear sides
Air-flow, therefore the utility model collection is comprehensively, fully, accurately, so as to ensure that the measurement result of air quantity collector is accurate.
（Two）Convex tendon of the present utility model can play pressure difference amplification, make that differential pressure measurement scope is wider, and precision is higher.
（Three）And the utility model is simple and reasonable, four air pressure acquisition bars of the present utility model are section bar, type
Material perforate and to rush via process simple, compared to existing air quantity collector, simple in construction, firm, manufacture of the present utility model
Easily, simple production process, easy for installation.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model air quantity collector.
Fig. 2 is Fig. 1 top view.
Fig. 3 is the cross section structure diagram at A-A in Fig. 1.
Fig. 4 is the cross-sectional structure schematic diagram of air pressure acquisition bar.
Fig. 5 is the cross-sectional structure schematic diagram of another air pressure acquisition bar.
Fig. 6 is the cross-sectional structure schematic diagram of the third air pressure acquisition bar.
Embodiment
Below in conjunction with the accompanying drawings and embodiment is further described to the utility model.
Referring to shown in Fig. 1 and Fig. 6, a kind of air quantity collector includes the air pressure acquisition of center housing 1 and four equal lengths
Bar 2,3,4,5, the inner of four air pressure acquisition bars 2,3,4,5 is connected to constitute crosswise, the gas with center housing 1
The front and rear sides of pressure pick-up slip 2,3,4,5 is respectively equipped with multiple windward side air pressure acquisition holes 21 and multiple leeward side air pressure acquisitions
Adopted along its length provided with windward side air pressure acquisition passage 23 and leeward side air pressure in hole 22, the air pressure acquisition bar 2,3,4,5
Collect passage 24, the windward side air pressure acquisition hole 21 is connected with windward side air pressure acquisition passage 23, leeward side air pressure acquisition hole 22
Connected with leeward side air pressure acquisition passage 24, the center housing 1 is provided with windward side air pressure collection chamber 10 and leeward side air pressure
Collection chamber 11, the inner of the windward side air pressure acquisition passage 23 is connected with windward side air pressure collection chamber 10, and windward side air pressure is adopted
Collect the outer end closing of passage 23, the inner of the leeward side air pressure acquisition passage 24 connects with leeward side air pressure collection chamber 11, carried on the back
It is all provided with the outer end closing of wind side air pressure acquisition passage 24, the windward side air pressure collection chamber 10 and leeward side air pressure collection chamber 11
There is airflow delivery outlet 13.
The outer end of four air pressure acquisition bars 2,3,4,5 is provided with installation foot 25.Four air pressure acquisitions of the present utility model
Bar is installed in pipeline by respective installation foot 25, the installation foot sealing windward side air pressure acquisition passage and leeward side air pressure
The outer end of acquisition channel, so as to prevent the airflow leaks of windward side air pressure acquisition passage and leeward side air pressure acquisition passage, shadow
Ring the collection of air-flow.
It is used as more specifically technical scheme of the present utility model.
Length direction of the multiple windward side air pressure acquisition hole 21 along windward side air pressure acquisition passage 23 is arranged on gas
The front side of pick-up slip 2,3,4,5 is pressed, the multiple leeward side air pressure acquisition hole 22 is arranged on air pressure along the length direction of leeward side
The rear side of pick-up slip 2,3,4,5.
The multiple leeward side air pressure acquisition hole 22 is in by interior gradually intensive shape outward on air pressure acquisition bar 2,3,4,5.
The multiple windward side air pressure acquisition hole 21 is in by interior gradually intensive shape outward on air pressure acquisition bar 2,3,4,5.
Windward side air pressure acquisition passage and leeward side the air pressure acquisition passage is located at forward and backward the two of air pressure acquisition bar respectively
Side.
The air pressure acquisition bar 2,3,4,5 is section bar.
The air pressure acquisition bar 2,3,4,5 heaves shape in middle part toward both sides up and down.The air pressure acquisition bar 2,3,4,5 is in ellipse
Toroidal or diamond shaped.
The surface of the air pressure acquisition bar 2,3,4,5 is provided with baffle convex tendon 26.
It is square or circular pipeline that four of the present utility model isometric air pressure acquisition bars, which are suitable for cross section,.Separately
Outside, the utility model according to the pipeline of different structures, shape, can change the design length of four air pressure acquisition bars, for example
Cross section is rectangular pipeline, and four air pressure acquisition bars can be designed to that long, the short up and down cross in left and right connects by the utility model
Binding structure.
Operation principle of the present utility model：
The utility model air quantity collector is in use, the utility model is installed on by the installation foot of four air pressure acquisition bars
Air-flow on front side of the air inlet of pipeline, air pressure acquisition bar enters windward side air pressure acquisition by windward side air pressure acquisition hole 2 and led to
Air-flow on rear side of road 23, air pressure acquisition bar enters leeward side air pressure acquisition passage 24, four by leeward side air pressure acquisition hole 22
Air pressure acquisition bar can collect the air-flow of multiple positions on a cross section of pipeline, four windward side air pressure acquisition passages 23
Air-flow be pooled to windward side air pressure collection chamber 10 again, while the air-flow of four leeward side air pressure acquisition passages 24 is pooled to the back of the body again
Wind side air pressure collection chamber 11, windward side air pressure collection chamber 10 and leeward side air pressure collection chamber 11 are defeated by respective air-flow respectively again
Outlet 13 is conveyed to wind pressure measurement device, and the utility model and wind pressure measurement device connect and compose a differential pressure pickup, wind pressure measurement
The air-flow direct measurement for the front and rear sides that device gathers air quantity collector 9 goes out draught head（That is the pressure difference of total head and static pressure）And turn
Change electric signal into, be then fed to control processor, control processor calculates air output, and control processor is believed according to the air quantity
The rotational angle of number controlled motor, motor is rotated by connecting rod band moving valve plate, and then controls the valve block of air conditioning terminal control device
Aperture, so as to realize regulation air output.
Claims (9)
1. a kind of air quantity collector, it is characterised in that：Including center housing and four air pressure acquisition bars, four air pressure acquisitions
The inner of bar is connected with center housing to constitute crosswise, and the both sides of the air pressure acquisition bar are respectively equipped with multiple windward side gas
Lead to along its length provided with windward side air pressure acquisition in pressure collection hole and multiple leeward side air pressure acquisition holes, the air pressure acquisition bar
Road and leeward side air pressure acquisition passage, the windward side air pressure acquisition hole are connected with windward side air pressure acquisition passage, leeward side gas
Pressure collection hole is connected with leeward side air pressure acquisition passage, and the center housing is provided with windward side air pressure collection chamber and leeward side gas
Collection chamber is pressed, the inner of the windward side air pressure acquisition passage is connected with windward side air pressure collection chamber, and windward side air pressure acquisition leads to
The outer end closing in road, the inner of the leeward side air pressure acquisition passage is connected with leeward side air pressure collection chamber, and leeward side air pressure is adopted
Collect and be equipped with airflow delivery outlet on the outer end closing of passage, windward side air pressure collection chamber and leeward side the air pressure collection chamber.
2. air quantity collector according to claim 1, it is characterised in that：The multiple windward side air pressure acquisition hole is along meeting
The length direction of wind side air pressure acquisition passage is arranged on the side of air pressure acquisition bar, the multiple leeward side air pressure acquisition hole edge back of the body
The length direction of wind side is arranged on the opposite side of air pressure acquisition bar.
3. air quantity collector according to claim 2, it is characterised in that：The multiple leeward side air pressure acquisition hole is in air pressure
It is in by interior gradually intensive shape outward on pick-up slip.
4. air quantity collector according to claim 3, it is characterised in that：The multiple windward side air pressure acquisition hole is in air pressure
It is in by interior gradually intensive shape outward on pick-up slip.
5. air quantity collector according to claim 4, it is characterised in that：The outer end of four air pressure acquisition bars is provided with peace
Fill pin, the outer end of the installation foot sealing windward side air pressure acquisition passage and leeward side air pressure acquisition passage.
6. air quantity collector according to claim 5, it is characterised in that：The air pressure acquisition bar is section bar.
7. air quantity collector according to claim 6, it is characterised in that：Air pressure acquisition bar both sides above and below in middle part
Heave shape.
8. air quantity collector according to claim 7, it is characterised in that：The air pressure acquisition bar oval in shape or rhombus
Shape.
9. air quantity collector according to claim 6, it is characterised in that：The surface of the air pressure acquisition bar is provided with baffle
Convex tendon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720284356.1U CN206583489U (en) | 2017-03-22 | 2017-03-22 | Air quantity collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720284356.1U CN206583489U (en) | 2017-03-22 | 2017-03-22 | Air quantity collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206583489U true CN206583489U (en) | 2017-10-24 |
Family
ID=60114868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720284356.1U Active CN206583489U (en) | 2017-03-22 | 2017-03-22 | Air quantity collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206583489U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238738A (en) * | 2018-08-16 | 2019-01-18 | 中国北方车辆研究所 | Special vehicle cooling air quantity test device and method based on testability grid |
| CN110579247A (en) * | 2019-09-16 | 2019-12-17 | 南华大学 | Telescopic air volume cover for measuring air volume of spherical nozzle |
| CN115235839A (en) * | 2022-09-22 | 2022-10-25 | 国网湖北省电力有限公司中超建设管理公司 | Portable gas monitor |
-
2017
- 2017-03-22 CN CN201720284356.1U patent/CN206583489U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238738A (en) * | 2018-08-16 | 2019-01-18 | 中国北方车辆研究所 | Special vehicle cooling air quantity test device and method based on testability grid |
| CN109238738B (en) * | 2018-08-16 | 2020-07-17 | 中国北方车辆研究所 | Special vehicle cooling air volume testing device and method based on testability grating |
| CN110579247A (en) * | 2019-09-16 | 2019-12-17 | 南华大学 | Telescopic air volume cover for measuring air volume of spherical nozzle |
| CN110579247B (en) * | 2019-09-16 | 2020-10-16 | 南华大学 | Telescopic air volume cover for measuring air volume of spherical nozzle |
| CN115235839A (en) * | 2022-09-22 | 2022-10-25 | 国网湖北省电力有限公司中超建设管理公司 | Portable gas monitor |
| CN115235839B (en) * | 2022-09-22 | 2022-12-27 | 国网湖北省电力有限公司中超建设管理公司 | Portable gas monitor |
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