CN207018703U - A kind of lower resistance collaborates three ventilation ducts - Google Patents
A kind of lower resistance collaborates three ventilation ducts Download PDFInfo
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- CN207018703U CN207018703U CN201720945563.7U CN201720945563U CN207018703U CN 207018703 U CN207018703 U CN 207018703U CN 201720945563 U CN201720945563 U CN 201720945563U CN 207018703 U CN207018703 U CN 207018703U
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- water conservancy
- conservancy diversion
- branch pipe
- bent plate
- arc bent
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Abstract
The utility model discloses a kind of lower resistance to collaborate three ventilation ducts.It includes branch pipe one, branch pipe two, increaser, collecting pipe, and branch pipe one connects collecting pipe with branch pipe two by increaser；It also includes conflux in geometric areas deflector for being installed on three ventilation ducts of interflow；In terms of air current flow direction, the front end of deflector and both sides contact edge are welded with airduct inwall, and deflector is made up of the water conservancy diversion arc bent plate of forward part and the water conservancy diversion straight panel of rear part；The forward terminal of water conservancy diversion arc bent plate central axis is connected with the aft terminal of the short side of branch pipe two, and the central axis of water conservancy diversion arc bent plate is tangent with the short side of branch pipe two at this point, water conservancy diversion arc bent plate, water conservancy diversion straight panel are vertical with the initial cross-section of collecting pipe, and water conservancy diversion arc bent plate connects with water conservancy diversion straight panel on the section.Three ventilation duct resistance optimization deflector structures of interflow of the present utility model are simple, and suitable for three ventilation ducts of different types of interflow, resistance optimization effect is good, and design and installation is easy.
Description
Technical field
The utility model belongs to industrial ventilation technical field, and in particular to a kind of lower resistance collaborates three ventilation ducts.
Background technology
At present, China is the air quality of optimization production space, ensures the health and control occupational disease of operating personnel
The incidence of disease, promulgated the discharge standard of all types of industries pollutant, higher requirement proposed to reducing industrial dust concentration.For
The working space that point occurs for multiple dust being present, the method for generally use local ventilation is effectively trapped to dust, therefore
It is more to collaborate the number of threeway ventilation Local Members in dust removal by ventilation pipe network, is not designing the feelings of four-way ventilation shaft Local Members
Under condition, the number of threeway Local Members is only second to the number that point occurs for dust.At the same time, because the space of workshop limits
System, pipeline network construction difficulty is larger etc., and reason, the design of three-way converging can typically pursue convenient construction without considering that local resistance is excellent
Change.Ventilating and purifying air system resistance of pipe system includes local resistance and frictional resistance, and data are calculated and with reference to work according to resistance of pipe system
Journey practical application finds that local ventilation drag overall accounts for the proportion of pipe network drag overall between 40%~70%, and branch's threeway is more
Ventilating system local resistance be more than 50%, it is then bigger plus frictional resistance proportion；In addition, the part of exhaust hood and elbow
The local resistance of resistance ratios interflow threeway is small, and the larger situation of especially two tributary energy differences, this phenomenon becomes apparent.Cause
This, the optimization for collaborating threeway local resistance seems particularly significant to reduction pipe network drag overall, dust pelletizing system operating cost.
In order to study the resistance of interflow threeway, the local resistance that past scholar collaborates threeway to current has carried out theoretical point
Analysis and experimental study.Theoretical research uses and establishes the universal table that Energy-Momentum equation seeks pipeline interflow mouth current local energy loss
Up to formula and then try to achieve the general expression of local energy loss coefficient；Experimental study is directed to by establishing water circulation system
Different interflow angles are tested, inquired into confluent angle, flow-rate ratio, area than etc. factor affecting laws, the results showed that it is local
Energy-loss factor with confluent angle, flow-rate ratio increase and the rule such as increase, but never have scholar from isolating or reduce two branch pipes
The interactional angle of energy collaborates the resistance of three ventilation ducts to optimize.In other words, local resistance is in two tributary energy differences
It is different influence each other reach balance during produce, how to reduce should during two tributaries due to mutual caused by capacity volume variance
Influence, the optimization that threeway local resistance is collaborated to airduct provides thinking, can be according to ventilating and purifying air system design of pipe networks principle
And feature optimizes to interflow threeway resistance.
The content of the invention
The purpose of this utility model is for production space ventilating and purifying air system ventilation pipe network interflow threeway Local Members
Number is more, directly results in the drag overall increase of ventilation pipe network system, so that the problem of increase system operation cost, is not influenceing to lead to
On the premise of wind design of pipe networks, there is provided one kind is based on the ventilation duct resistance optimization technology of direct current three, so as to reduce dust removal by ventilation pipe network
The lower resistance of system drag overall collaborates three ventilation ducts.
The purpose of this utility model is realized by the following technical solutions：The lower resistance collaborates three ventilation ducts, bag
Branch pipe one, branch pipe two, increaser, collecting pipe are included, branch pipe one connects collecting pipe with branch pipe two by increaser；It is characterized in：It
Also include conflux in geometric areas deflector for being installed on three ventilation ducts of interflow；In terms of air current flow direction, deflector
Front end and both sides contact edge weld with airduct inwall, and deflector is by the water conservancy diversion arc bent plate of forward part and the water conservancy diversion straight panel of rear part
Composition；The forward terminal of water conservancy diversion arc bent plate central axis is connected with the aft terminal of the short side of branch pipe two, and in water conservancy diversion arc bent plate
Mandrel line is tangent with the short side of branch pipe two at this point, and water conservancy diversion arc bent plate, water conservancy diversion straight panel are vertical with the initial cross-section of collecting pipe,
Water conservancy diversion arc bent plate connects with water conservancy diversion straight panel on the section；Water conservancy diversion arc bent plate separates two branch pipe dust-contained airflows, two beam air-flows
Increaser is flowed through under the separation of water conservancy diversion arc bent plate, is collaborated in the presence of water conservancy diversion straight panel to collecting pipe.
Specifically, the short side of branch pipe two is branch pipe two crossed with increaser after the most short a line of its length.
Further, the water conservancy diversion straight panel carrys out design and installation by two equal premises of pipe fluid speed in collecting pipe.
The utility model one deflector of optimal design-aside, its water conservancy diversion arc bent plate in three ventilation ducts of interflow contain two branch pipes
Dust and gas flow point is every two beam air-flows flow through increaser under the separation of water conservancy diversion bent plate, steadily collaborate in the presence of water conservancy diversion straight panel, lead
Stream straight panel is set according to the equal premise of two branch pipe fluid velocity insides, is reduced after confluxing because energy exchange occurs for speed difference
Produce the pressure loss.
Three ventilation duct resistance optimization deflector structures of interflow of the present utility model are simple, suitable for different types of interflow three
Ventilation duct, resistance optimization effect is good, and design and installation is easy.
Brief description of the drawings
Fig. 1 is the structural representation of three ventilation ducts of existing interflow.
Fig. 2 is the stereochemical structure sectional view of the utility model embodiment.
Fig. 3 is the longitudinal section of the utility model embodiment.
Embodiment
The utility model will be further described with reference to the accompanying drawings and examples.
The structural representation of three ventilation ducts of existing interflow referring to Fig. 1, it include branch pipe 1, branch pipe 22, increaser 4,
Collecting pipe 3, branch pipe 1 and branch pipe 22 connect collecting pipe 3 by increaser 4.It can be seen from figure 1 that dust-contained airflow passes through branch pipe one
1 and branch pipe 22 conflux in increaser 4, two strands have energy difference a fluid streams occurs in increaser 4 energy exchange generation pressure
Loss, collecting pipe 3 is flowed into behind the interflow of increaser 4, also has energy loss during being somebody's turn to do.
It is that the lower resistance of the utility model embodiment collaborates the schematic diagram of three ventilation ducts referring to Fig. 2, Fig. 3.From Fig. 2, Fig. 3
In it is visible, it also include be installed on interflow three ventilation ducts conflux in geometric areas deflector 5；From air current flow direction
See, the front end of deflector 5 and both sides contact edge weld with airduct inwall, deflector 5 by forward part the He of water conservancy diversion arc bent plate 51
The water conservancy diversion straight panel 52 of part forms afterwards；The forward terminal of the central axis 53 of water conservancy diversion arc bent plate 51 and the short side 21 of branch pipe 22
Aft terminal connects, and the short side 21 of branch pipe 22 is a line that its length is most short after branch pipe 22 crosses with increaser 4, i.e. Fig. 2, schemes
The short side of the length of sectional view lower branch line shown in 322, and the central axis 53 of water conservancy diversion arc bent plate 51 at this point with branch pipe 22
Short side 21 it is tangent；Water conservancy diversion arc bent plate 51, water conservancy diversion straight panel 52 are vertical with the initial cross-section of collecting pipe 3, the water conservancy diversion on the section
Arc bent plate 51 connects with water conservancy diversion straight panel 52.Dust-contained airflow flows through increaser 4 by branch pipe 1 in the presence of water conservancy diversion bent plate 5
Collaborated afterwards by water conservancy diversion straight panel 6 with branch pipe 2 in collecting pipe 3, under the separation of water conservancy diversion arc bent plate 51, two tributaries stream does not occur
Body caused resistance because energy difference influences each other；Dust-contained airflow is flowed by branch pipe 22 in the presence of water conservancy diversion arc bent plate 51
Collaborated after water conservancy diversion arc bent plate 51 by the fluid of water conservancy diversion straight panel 52 and branch pipe 1 in collecting pipe 3, the work of water conservancy diversion straight panel 52
With being ensuring that the speed that two tributaries are flowed through after water conservancy diversion arc bent plate 51 in collecting pipe 3 is equal, just do not consider in this case
Due to energy loss caused by speed difference when confluxing, therefore, the drag overall of resistance generating region reduces.
Claims (3)
1. a kind of lower resistance collaborates three ventilation ducts, including branch pipe one, branch pipe two, increaser, collecting pipe, branch pipe one and branch pipe two-way
Cross increaser connection collecting pipe；It is characterized in that：It also includes be installed on three ventilation ducts of interflow conflux in geometric areas one
Deflector；In terms of air current flow direction, the front end of deflector and both sides contact edge weld with airduct inwall, and deflector is by forward part
Water conservancy diversion arc bent plate and rear part water conservancy diversion straight panel composition；The forward terminal of water conservancy diversion arc bent plate central axis and the short side of branch pipe two
Aft terminal connection, and the central axis of water conservancy diversion arc bent plate is tangent with the short side of branch pipe two at this point, water conservancy diversion arc bent plate, leads
Stream straight panel is vertical with the initial cross-section of collecting pipe, and water conservancy diversion arc bent plate connects with water conservancy diversion straight panel on the section；Water conservancy diversion curved bend
Plate separates two branch pipe dust-contained airflows, and two beam air-flows flow through increaser under the separation of water conservancy diversion arc bent plate, in water conservancy diversion straight panel
Effect is lower to be collaborated to collecting pipe.
2. lower resistance according to claim 1 collaborates three ventilation ducts, it is characterised in that：The short side of branch pipe two is branch pipe two
The most short a line of its length after being crossed with increaser.
3. lower resistance according to claim 1 collaborates three ventilation ducts, it is characterised in that：The water conservancy diversion straight panel presses two branch pipe streams
The equal premise of body speed in collecting pipe carrys out design and installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720945563.7U CN207018703U (en) | 2017-07-31 | 2017-07-31 | A kind of lower resistance collaborates three ventilation ducts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720945563.7U CN207018703U (en) | 2017-07-31 | 2017-07-31 | A kind of lower resistance collaborates three ventilation ducts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207018703U true CN207018703U (en) | 2018-02-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720945563.7U Expired - Fee Related CN207018703U (en) | 2017-07-31 | 2017-07-31 | A kind of lower resistance collaborates three ventilation ducts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207018703U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654777A (en) * | 2017-10-30 | 2018-02-02 | 中国电力工程顾问集团中南电力设计院有限公司 | The lateral flow three-port structure of arc deflector |
| CN109000064A (en) * | 2018-08-27 | 2018-12-14 | 江苏开普尔实业有限公司 | A kind of water conservancy diversion current divider |
| CN112031085A (en) * | 2020-05-22 | 2020-12-04 | 康泰塑胶科技集团有限公司 | Special rotational flow single vertical pipe system |
-
2017
- 2017-07-31 CN CN201720945563.7U patent/CN207018703U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654777A (en) * | 2017-10-30 | 2018-02-02 | 中国电力工程顾问集团中南电力设计院有限公司 | The lateral flow three-port structure of arc deflector |
| CN107654777B (en) * | 2017-10-30 | 2024-04-05 | 中国电力工程顾问集团中南电力设计院有限公司 | Lateral flow tee structure of arc-shaped guide plate |
| CN109000064A (en) * | 2018-08-27 | 2018-12-14 | 江苏开普尔实业有限公司 | A kind of water conservancy diversion current divider |
| CN109000064B (en) * | 2018-08-27 | 2023-10-31 | 江苏开普尔实业有限公司 | Diversion diverter |
| CN112031085A (en) * | 2020-05-22 | 2020-12-04 | 康泰塑胶科技集团有限公司 | Special rotational flow single vertical pipe system |
| CN112031085B (en) * | 2020-05-22 | 2021-09-10 | 康泰塑胶科技集团有限公司 | Special rotational flow single vertical pipe system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20180216 Termination date: 20200731 |