CN2795162Y - Adjustable gas flow regulator - Google Patents
Adjustable gas flow regulator Download PDFInfo
- Publication number
- CN2795162Y CN2795162Y CN 200520041946 CN200520041946U CN2795162Y CN 2795162 Y CN2795162 Y CN 2795162Y CN 200520041946 CN200520041946 CN 200520041946 CN 200520041946 U CN200520041946 U CN 200520041946U CN 2795162 Y CN2795162 Y CN 2795162Y
- Authority
- CN
- China
- Prior art keywords
- cavity
- gas
- utility
- model
- gas flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Lift Valve (AREA)
Abstract
The utility model relates to an adjustable gas flow regulator, which comprises a cavity (2), a pipe flange (1) which is used for a gas inlet and a gas outlet, a control block (3) which is arranged inside the cavity (2), a lifting mechanism (4) which is connected with the control block (3) and a sealing mechanism (5) which seals the point where the lifting mechanism (4) is connected with the cavity (2). The utility model has the advantage that a throat passage inside the control block is changed though regulation of a rotary knob when the pressure and the temperature of an upper stream gas are invariable so that different gas flow rate can be obtained and the technological requirements of different pneumatic systems are satisfied.
Description
Technical field
The utility model relates to a kind of feedway, relates in particular to a kind of gas flow adjusting means.
Background technology
In Chemical Manufacture, the conveying of solid material can have various carrying methods, comprise mechanical transport and gas delivery etc., wherein gas delivery have speed fast, totally-enclosed, advantage such as convey materials and environmental nonpollution is extremely paid attention to, and purposes is extremely extensive.In order to realize the smooth delivery of power of material, the pressure of the medium (being generally air or nitrogen) carried and flow etc. are had than higher requirement, therefore for the requirement of various operational throughpuies and fed distance, must be equipped with different gaseous tensions and flow.
Article title is the De Laval noz(zle) in the positive pneumatic conveying system system, author: Xiao Anhong, source: Wuhan University of Technology's journal 2002, (4): 31-33.This article has been discussed the research and the application of De Laval noz(zle) in the air-transport system: the constant constant entropy gasmovement of utilization monobasic basic law, and this device comprises cavity, controll block, is used for the pipe flange of gas inlet and outlet; Controll block is divided into contraction section, throat and expansion segment three parts in order with gas channel; Air-flow quickens in constriction, reaches critical conditions on smallest cross-sectional (throat), continues to quicken at expansion segment then.
Aborning, the intensity of conveying can be adjusted along with the change of productive output, in case carry when requiring to change, the pressure of gas and flow also must change thereupon, therefore it is adjustable to carry source of the gas to make, and could guarantee the smooth of conveying like this, and the while is energy savings to greatest extent.
In above-mentioned disclosed document, because controll block fixes, in the strength system of the skill parameter that can not be applied to exchange work.
Summary of the invention
The utility model technical issues that need to address have provided a kind of adjustable gas flow adjusting means, are intended to solve above-mentioned defective.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
The utility model comprises: a cavity, and a pipe flange that is used for gas inlet and outlet, one places the controll block in the cavity; Also comprise one with described controll block bonded assembly lifting mechanism, one is carried out the leak free sealing mechanism with lifting mechanism and cavity junction;
Compared with prior art, the beneficial effects of the utility model are: when the pressure and temperature of upstream gas is constant, by regulating rotary knob, make that the throat's passage in the controll block changes, can obtain different gas flows, thereby satisfy the technological requirement of different air-transport systems.
Description of drawings
Fig. 1 is the gas flow scheme drawing;
Fig. 2 is a structural representation of the present utility model;
Fig. 3 be among Fig. 2 A-A to structural representation;
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail:
As seen from Figure 1: theoretical basis of the present utility model is that gas characteristics of motion in installing pipes is followed the constant constant entropy of monobasic and flowed.Air-flow quickens in constriction 31, reaches critical conditions in smallest cross-sectional throat 32, continues to quicken at expansion segment 33 then.
Can list following fundamental equation group:
Continuity equation: ρ vA=constant (1)
Conservation energy: KP/ ρ (K-1)+v
2/ 2=constant (2)
Equation of state: P=ρ RT (3)
Isentropic process: P/ ρ
K=constant (4)
According to theory, can derive relational expression:
m＝A
*(KP
0ρ
0)
[2/(K+1)]
(K+1)/2(K-1) (kg/s) (5)
In the formula: m-gas vent flow (Kg/s)
A
*Area of passage (the m of throat in the-device
2)
The K-ratio of specific heat, K=1.4
P
0Gas access pressure (Pa) in-device
ρ
0Gas access density (Kg/m in the-device
3)
The condition that following formula is set up is the gaseous tension P of device outlet
2≤ 0.528P0.
If the gaseous tension P of device upstream
0And temperature T
0Constant, the gas mass flow by the utility model device only is directly proportional with throat area so, by regulating the area A of throat
*, mass flow rate that can control setup lower exit gas.
The utility model is applied to air-transport system, in case transport condition changes, the size that can regulate throat's passage satisfies the requirement of delivery technology (flow and pressure change).
By Fig. 2, Fig. 3 as seen: the utility model comprises: 1, one of the pipe flange that 2, one of cavity is used for gas inlet and outlet put with cavity 2 in controll block 3; Comprise that also one is carried out leak free sealing mechanism 5 with 4, one of described controll block 3 bonded assembly lifting mechanisms with lifting mechanism 4 and cavity 2 junctions;
In the utility model, described lifting mechanism 4 is screw lifting mechanisms; Described sealing mechanism 5 is side seal structures.
The utility model is mounted in the gas source pipe of air-transport system, and therefore import and export of the present utility model have all designed pipe flange, can directly be connected with gas source pipe.
It is smooth that air-flow is come in and gone out in device, reduces differential pressure, and cavity design of the present utility model preferably adopts foundry goods, carries out fine limit work then, and also available certainly sheet material is welded.
The action of controll block is realized by adjust bar.The adjust bar that the utility model is used is common screw lifting mechanism.
Because screw lifting mechanism is a kinematic mechanism, so the sealing problem between adjust bar and the cavity also is the essential solution of the utility model.Side seal structure of the present utility model has solved this problem well.
Claims (2)
1. adjustable gas flow adjusting means comprises: a cavity (2), and a pipe flange (1) that is used for gas inlet and outlet, one places the controll block (3) in the cavity (20); It is characterized in that: also comprise one with described controll block (3) bonded assembly lifting mechanism (4), one is carried out leak free sealing mechanism (5) with lifting mechanism (4) and cavity (2) junction.
2. adjustable gas flow adjusting means according to claim 1 is characterized in that: described lifting mechanism (4) is a screw lifting mechanism; Described sealing mechanism (5) is the side seal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520041946 CN2795162Y (en) | 2005-05-27 | 2005-05-27 | Adjustable gas flow regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520041946 CN2795162Y (en) | 2005-05-27 | 2005-05-27 | Adjustable gas flow regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2795162Y true CN2795162Y (en) | 2006-07-12 |
Family
ID=36812922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520041946 Expired - Lifetime CN2795162Y (en) | 2005-05-27 | 2005-05-27 | Adjustable gas flow regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2795162Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102785938A (en) * | 2012-07-16 | 2012-11-21 | 北京国电富通科技发展有限责任公司 | Disturbing device for conveying materials, pneumatic conveying device and material conveying method |
| CN103032581A (en) * | 2012-12-31 | 2013-04-10 | 中国人民解放军国防科学技术大学 | Continuously-adjustable sonic nozzle |
| CN107176465A (en) * | 2017-04-27 | 2017-09-19 | 江苏日升电力机械有限公司 | A kind of high efficiency smart formula Geldart-D particle structure |
| CN109701769A (en) * | 2019-02-21 | 2019-05-03 | 孙国杰 | Sonic nozzle |
-
2005
- 2005-05-27 CN CN 200520041946 patent/CN2795162Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102785938A (en) * | 2012-07-16 | 2012-11-21 | 北京国电富通科技发展有限责任公司 | Disturbing device for conveying materials, pneumatic conveying device and material conveying method |
| CN102785938B (en) * | 2012-07-16 | 2015-04-01 | 北京国电富通科技发展有限责任公司 | Disturbing device for conveying materials and pneumatic conveying device |
| CN103032581A (en) * | 2012-12-31 | 2013-04-10 | 中国人民解放军国防科学技术大学 | Continuously-adjustable sonic nozzle |
| CN103032581B (en) * | 2012-12-31 | 2017-09-05 | 中国人民解放军国防科学技术大学 | Continuously adjustabe sonic nozzle |
| CN107176465A (en) * | 2017-04-27 | 2017-09-19 | 江苏日升电力机械有限公司 | A kind of high efficiency smart formula Geldart-D particle structure |
| CN109701769A (en) * | 2019-02-21 | 2019-05-03 | 孙国杰 | Sonic nozzle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2795162Y (en) | Adjustable gas flow regulator | |
| CN108680331A (en) | A kind of adjustable half flexible jet pipe of branched side wall | |
| CN2859601Y (en) | Wind-pressure adjusting system equipped with independent but the same valve and its locator | |
| CN108362466A (en) | Half flexible jet pipe guide rail horizontal larynx block driving device of continous way transonic wind tunnel | |
| CN102639881A (en) | Kinematic control in a hydraulic system | |
| CN2749667Y (en) | Mould head of sheet material machine | |
| CN1279314C (en) | Equipment and implementing method capable of regulation controlling and uniform distributing flux of powdered coal | |
| CN110374763B (en) | Experimental device for adjusting flow of air inlet passage of solid rocket ramjet | |
| CN201090765Y (en) | Holder type aperture plate flow regulating valve | |
| CN206409654U (en) | A kind of heavy caliber pendulum model vacuum valve for large high-vacuum system | |
| CN1279306C (en) | Process and device for transport of gas | |
| WO2023151565A1 (en) | Modular flow measurement method and apparatus, and application | |
| CN106704614A (en) | Large-caliber pendulum type vacuum valve for large-scale high vacuum system and sealing method of large-caliber pendulum type vacuum valve | |
| CN1751978A (en) | Conveying accelerator | |
| CN100457286C (en) | Powder sending unit in high pressure for cold spray | |
| CN202371451U (en) | Cooling and depressurization system | |
| CN201882642U (en) | Upper discharging pipe for positive-pressure pneumatic delivery of powder | |
| CN1383042A (en) | Automatic controller for lowering pressure of high-pressure gas by volume expansion | |
| CN2556442Y (en) | Pressure stabilizing constant-flow valve device | |
| CN111752313A (en) | Flow cooperative control method and control system device for transformed gas and unvaryed gas of gasification furnace | |
| CN113639345A (en) | Pressure control system and method for clean room | |
| CN102506299A (en) | Method for reducing running pressure of common compressed air pipe network | |
| CN201022072Y (en) | Etcher | |
| JPS61145031A (en) | Transport apparatus utilizing gas stream | |
| CN101620445B (en) | Oil, water and air tri-phase flow stabilization system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150527 Granted publication date: 20060712 |