CN201373535Y - Shunting rated uniform air feeding and returning device of long air duct - Google Patents
Shunting rated uniform air feeding and returning device of long air duct Download PDFInfo
- Publication number
- CN201373535Y CN201373535Y CN200920069254U CN200920069254U CN201373535Y CN 201373535 Y CN201373535 Y CN 201373535Y CN 200920069254 U CN200920069254 U CN 200920069254U CN 200920069254 U CN200920069254 U CN 200920069254U CN 201373535 Y CN201373535 Y CN 201373535Y
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- China
- Prior art keywords
- air
- shunting
- valve
- long
- grade
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- 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
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Flow Control Members (AREA)
- Duct Arrangements (AREA)
- Pipe Accessories (AREA)
Abstract
The utility model relates to a shunting rated uniform air feeding and returning device of long air duct, which consists of a long air duct and a bypass branch pipe connected and formed by the bodies of a plurality of three-way air valves; improved type three-way adjusting valves with rated air amount shunting function. The section areas and sizes of each valve body on the long air duct are gradually reduced by grades according to the proportional section area and size of rated shunting air amount at each grade; the inner surface of the total air duct of the improved type three-way adjusting valve is provided with a rectangle or U-shape shunting pipe which has a section area and size in accordance with the proportional section area and size of rated shunting air amount at each grade, has a certain height and width, and is connected with the interface of the bypass branch pipe at one end. When working, the cross area and size of the rectangle or U-shape shunting pipe limits the air flow amount of the bypass branch pipe; the valve bodies at each grade on the long air duct which are gradually reduced according to the proportional section area and size of the rated shunting air amount at each grade ensures the air speed and dynamic pressure of the air flow amount on the valve bodies at each grade in the long air duct to tend to be similar, thus leading each bypass branch pipe to obtain basically similar air flow amount and realizing to uniform air feeding and returning air of the long air duct.
Description
Technical field
The utility model relates to air quantity regulation technology field, particularly a kind ofly is applicable to that long airduct in subway or building environmental control system and the air conditioner ventilating system shunts that specified formula is evenly sent, air-returning device.
Background technology
In subway or building environmental control system and air conditioner ventilating system, adopt long airduct to send at present morely, air return method, as shown in Figure 1, long airduct is identical by several shapes, by blast main, the valve body that pipe straight branch interface and bypass are propped up the three-way air valve of interface tube formation is formed by connecting, valve body is made of the blast main and the pipe straight branch interface of interconnection, because the flow direction and the arm pressure inside that enter the air current flow of blast main, suction is relevant, order about the air current flow of sending into by ambient pressure and in the way of advancing, be essentially rectilinear motion under the situation of no external force interference usually, thereby cause most air current flow to flow to pipe straight branch, have only the air current flow of minimum part under the inside static pressure effect that exists on the bypass arm, to transfer and flow to the bypass arm, and owing to do not have the distribution of air flow control device at valve inner, even under the identical situation of the static pressure in each bypass arm, when the air current flow dynamic pressure that enters is big, often the bypass arm of caudal part portion air quantity greater than the bypass arm of end nearby air quantity, and when the dynamic pressure that enter air quantity hour, often nearby the bypass arm of end air quantity greater than the bypass arm of caudal part portion air quantity, so, each bypass arm must air quantity be uneven in the long airduct of this traditional structure form, thereby can not satisfy actual instructions for use.In order to improve the situation that each bypass arm in the long airduct gets the air quantity inequality, industry is tried to explore, occurred following three kinds of architecture advances measures in recent years: one as shown in Figure 2, dwindle the valve body cross-sectional area size that constitutes by blast main and pipe straight branch on the three-way air valve step by step keeping bypass to prop up under the situation of interface tube cross-sectional area size constancy, to keep the gentle mobile pressure of air velocity in the long airduct constant substantially, thereby the bypass arm of guaranteeing every grade obtains close substantially air current flow, but find in practice, because air hydrodynamic can be converted into static pressure automatically when propping up interface tube near what bypass of tail end, thereby can't realize the purpose of even air blow and return; It two as shown in Figure 3, keeping increasing the cross-sectional area size that bypass is propped up interface tube step by step on the basic basis of invariable of long airduct cross-sectional area size, its objective is and to overcome the dynamic pressure of air current flow in long airduct more near the more little weakness of tail end, to prop up the method for interface tube cross-sectional area size and guarantee that the air entering and returning amount of every grade of bypass arm is close substantially by increasing bypass step by step, but find in practice, because the dynamic pressure in the long airduct is constantly diminishing, in fact also be difficult to control, the difficulty that realizes is very big, and the material input of the long airduct of this version and processing cost are all very high, thereby operability and economy inequality; It three as shown in Figure 4, on the interface position of every grade of each bypass arm, all increase control valve is set, taking step by step during work, the method for adjusting control valve door open degree makes the air quantity that gets of each bypass arm be tending towards close, but find in practice, because the air quantity of any one control valve is regulated the variation that all can cause total head in the long airduct, thereby cause influencing the air quantity that gets of other adjusted bypass arms of getting well or also not regulating, thereby when not only operating when useless, useless power, and be difficult to realize the purpose of even air blow and return.Therefore, the long airduct air blow and return course of work that can't realize evenly sending, return air is the existing structure form ubiquitous a great problem since the midium or long term, having a strong impact on the work quality of building environmental control system and air conditioner ventilating system, having very much and studied the necessity that overcomes.
Summary of the invention
The purpose of this utility model be to overcome in the long airduct air blow and return course of work of prior art existing can not guarantee to each bypass arm evenly give, the drawback of return air, provide a kind of long airduct to shunt that specified formula is evenly sent, air-returning device.
Long airduct of the present utility model is shunted specified formula and is evenly sent, air-returning device be achieved in that at first to traditional by several by blast main, the blast main cross-sectional area size that pipe straight branch interface and bypass are propped up the quantity of three-way air valve set on the long airduct that the valve body of the three-way air valve that interface tube constitutes connects and composes and initial grade of three-way air valve calculates the ratio cross-sectional area size that bypass arm on every grade of three-way air valve allows the average shunting air quantity that is assigned to, and with this ratio cross-sectional area size as every grade of specified shunting air quantity, adopt air quantity diversion three-way valve to replace traditional three-way air valve then with specified shunting function, and carry out the foundation that specified flow-dividing control flows to bypass arm air quantity ratio cross-sectional area size at the corresponding levels as every grade of air quantity diversion three-way valve in the ratio cross-sectional area size of described every grade of specified shunting air quantity, also dwindle simultaneously the foundation of cross-sectional area size step by step as valve bodies at different levels, the total intake ratio cross-sectional area size that makes the previous stage valve body is flowed to after the ratio cross-sectional area size of specified shunting air quantity of bypass arm the ratio cross-sectional area size that is equaled the inflow air current flow of back one-level valve body blast main by the ratio cross-sectional area size of the air current flow of pipe straight branch interface output by the air quantity diversion three-way valve flow-dividing control of this grade at deduction, thereby the wind speed and the dynamic pressure of air quantity diversion three-way valve blast main interfaces at different levels junction in the long airduct of flowing through are reached unanimity, and guarantee that the air quantity that gets of each bypass arm is tending towards close on the long airduct, realize evenly sending, the purpose of return air.
Shunting specified formula based on the long airduct of the utility model of above-mentioned design evenly send, the air-returning device main body is made of long airduct and bypass arm, long airduct by several by blast main, the valve body that pipe straight branch interface and bypass are propped up the three-way air valve of interface tube formation is formed by connecting, described valve body is made of the blast main and the pipe straight branch interface of interconnection, be characterised in that described three-way air valve filled the post of by the modified three-way air valve with nominal air delivery shunting function, the modified three-way air valve that described long airduct is dwindled in the ratio cross-sectional area size of every grade of specified shunting air quantity step by step by one group of several valve body cross-sectional area size links to each other and forms, and wherein: described modified three-way air valve main body is by blast main, pipe straight branch interface and bypass are propped up the three-way air valve of interface tube formation and are increased and be arranged on the blast main inner surface of three-way air valve, one end props up interface tube with bypass and links to each other, the cross-sectional area size conforms to the ratio cross-sectional area size of every grade of specified shunting air quantity, rectangle or U type isocon with certain altitude and width constitute.In addition, described square type or U type isocon can be set to height and the fixed or serial selective of width-adjustable; Side of described square type or U type isocon or opening one side are close to and are arranged on the valve body blast main and are provided with bypass and prop up on the side of interface tube.
During work, by having certain altitude and width, rectangle that the cross-sectional area size conforms to the ratio cross-sectional area size of every grade of specified shunting air quantity or U type isocon are as the specified shunting air quantity passage that flows to bypass arm air-flow, simultaneously because the sectional dimension that the valve bodies at different levels on the long airduct all dwindle the next stage valve body step by step in the ratio cross-sectional area size of every grade of specified shunting air quantity, can make the flow velocity and the dynamic pressure of the air current flow in the valve bodies at different levels be tending towards close, thereby can guarantee that the bypass arm on the valve bodies at different levels on the long airduct obtains close substantially air current flow, thereby realize evenly sending of long airduct, return air.
Shunting specified formula based on the long airduct of the utility model of above-mentioned design evenly send, air-returning device, because long airduct is arranged to be dwindled in the ratio cross-sectional area size of every grade of specified shunting air quantity by several valve bodies, and connect and compose by modified three-way air valve with nominal air delivery shunting function, can guarantee that air current flow has metastable wind speed in the long airduct, Yi Zhi dynamic pressure relatively, thereby help guaranteeing to realize each bypass arm evenly sending under specified dispense flow rate, return air, also help improving the work quality of building environmental control system or air conditioner ventilating system, in guaranteeing each bypass arm, obtain equably to create on the basis of required air flow rate and meet the space environment that the ring control requires, be people's physical and mental health, various instrument and equipments under ventilation condition good operation and guarantee that the operate as normal life-span provides basic guarantee.So, long airduct of the present utility model shunts that specified formula is evenly sent, air-returning device efficiently solves for a long time and sends back at long airduct, aspect the wind ubiquitously can't realize evenly giving, a great problem of return air, it is simple and scientific and reasonable to have apparatus structure, advantages such as convenient and reliable operation are set, very strong practicality and valuable market application foreground are arranged.
Description of drawings
Fig. 1 is the structural representation of one of prior art of the present utility model;
Fig. 2 is two a structural representation of prior art of the present utility model;
Fig. 3 is three a structural representation of prior art of the present utility model;
Fig. 4 is four a structural representation of prior art of the present utility model;
Fig. 5 is the structural representation of embodiment of the present utility model;
Fig. 6 is the structural representation of modified three-way air valve among the embodiment of the present utility model.
Among the figure:
1. blast main 2. pipe straight branch interfaces 3. bypass are propped up interface tube 4. three-way air valves
5. control valve 6. modified three-way air valves 7. isocons
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and exemplary embodiments.
At Fig. 1, Fig. 2, among Fig. 3 and Fig. 4, in prior art of the present utility model, have and send, the long airduct of return air function by several by blast main 1, the three-way air valve 4 that pipe straight branch interface 2 and bypass are propped up interface tube 3 formations connects and composes, and constitute the valve body of three-way air valve 4 by blast main 1 and pipe straight branch interface 2, take or dwindle step by step the valve body cross-sectional area size of three-way air valve 4, perhaps strengthen bypass step by step and prop up the cross-sectional area size of interface tube 3, perhaps prop up to increase on the interface tube 3 control valve 5 is set in described bypass, the method of adjusting control valve door open degree step by step, make the air quantity that gets of each bypass arm be tending towards close, but find that in practice operability is all relatively poor.
In Fig. 5 and Fig. 6, long airduct of the present utility model is shunted specified formula and is evenly sent, the air-returning device main body is made of long airduct and bypass arm, long airduct by several by blast main 1, the valve body that pipe straight branch interface 2 and bypass are propped up the three-way air valve 4 of interface tube 3 formations is formed by connecting, valve body is made of the blast main 1 and the pipe straight branch interface 2 of interconnection, be characterised in that described three-way air valve 4 filled the post of by the modified three-way air valve 6 with nominal air delivery shunting function, the modified three-way air valve 6 that described long airduct is dwindled in the ratio cross-sectional area size of every grade of specified shunting air quantity step by step by one group of several valve body cross-sectional area size links to each other and constitutes, wherein: described modified three-way air valve 6 main bodys are by blast main 1, pipe straight branch interface 2 and bypass are propped up interface tube 3 and are constituted, and the inner surface of blast main 1 is provided with an end and props up interface tube 3 with bypass and link to each other, the sectional area size conforms to the ratio sectional area size of every grade of specified shunting air quantity, square type or U type isocon 7 with certain altitude and width.In addition, described square type or U type isocon 7 are set to height and the fixed or serial selective of width-adjustable, and an one side or open side are close to and are arranged on valve body blast main 1 and are provided with bypass and prop up on the side of interface tube 3.
Claims (4)
1. a long airduct is shunted specified formula and is evenly sent, air-returning device, constitute by long airduct and bypass arm, long airduct by several by blast main (1), the valve body that pipe straight branch interface (2) and bypass are propped up the three-way air valve (4) of interface tube (3) formation is formed by connecting, valve body is made of the blast main (1) and the pipe straight branch interface (2) of interconnection, it is characterized in that: described three-way air valve (4) is filled the post of by the modified three-way air valve (6) with nominal air delivery shunting function, and the modified three-way air valve (6) that described long airduct is dwindled in the ratio cross-sectional area size of every grade of specified shunting air quantity step by step by one group of several valve body cross-sectional area size links to each other and constitutes.
2. long airduct according to claim 1 shunts that specified formula is evenly sent, air-returning device, it is characterized in that described modified three-way air valve (6) is arranged on blast main (1) inner surface of three-way air valve (4) by three-way air valve (4) and increase, an end props up square type or U type isocon (7) formation that interface tube (3) links to each other, the sectional area size conforms to the ratio sectional area size of every grade of specified shunting air quantity with bypass.
3. long airduct according to claim 1 shunts that specified formula is evenly sent, air-returning device, it is characterized in that the height of described square type or U type isocon (7) and width are adjustable fixed or serial selective.
4. long airduct according to claim 1 shunts that specified formula is evenly sent, air-returning device, it is characterized in that side of described square type or U type isocon (7) or open side are close to be arranged on valve body blast main 1 and to be provided with bypass and to prop up on the side of interface tube (3).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920069254U CN201373535Y (en) | 2009-03-23 | 2009-03-23 | Shunting rated uniform air feeding and returning device of long air duct |
| PCT/CN2010/070824 WO2010108403A1 (en) | 2009-03-23 | 2010-03-02 | Long air pipe for distributing supplying air and returning air ratedly and uniformly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920069254U CN201373535Y (en) | 2009-03-23 | 2009-03-23 | Shunting rated uniform air feeding and returning device of long air duct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201373535Y true CN201373535Y (en) | 2009-12-30 |
Family
ID=41499621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920069254U Expired - Lifetime CN201373535Y (en) | 2009-03-23 | 2009-03-23 | Shunting rated uniform air feeding and returning device of long air duct |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN201373535Y (en) |
| WO (1) | WO2010108403A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010108403A1 (en) * | 2009-03-23 | 2010-09-30 | Wu Xiping | Long air pipe for distributing supplying air and returning air ratedly and uniformly |
| CN101509696B (en) * | 2009-03-23 | 2010-12-08 | 上海淮亩节能环保科技有限公司 | Long wind pipe uniform wind sending and returning method and device thereof |
| CN107270454A (en) * | 2017-08-03 | 2017-10-20 | 吴喜平 | Catch basin flow equalizing low-resistance power air diffuser |
| CN107740896A (en) * | 2017-08-16 | 2018-02-27 | 吴喜平 | The equal overflow pipe threeway of lower resistance |
| CN107740888A (en) * | 2017-08-16 | 2018-02-27 | 吴喜平 | Lower resistance flows long water pipe |
| CN112856666A (en) * | 2021-02-04 | 2021-05-28 | 山东海福德机械有限公司 | Roots blower automatically regulated air supply system |
| CN113551525A (en) * | 2021-07-01 | 2021-10-26 | 武汉科技大学 | Integrated sintering flue gas external circulation system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109516011A (en) * | 2018-12-29 | 2019-03-26 | 常州车之翼动力科技有限公司 | A kind of energy storage container air-conditioning blower unit |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3486128B2 (en) * | 1999-04-26 | 2004-01-13 | 富士電機総設株式会社 | Air purifier for clean room |
| CN2676085Y (en) * | 2003-12-26 | 2005-02-02 | 东风汽车有限公司 | Air supply pipeline |
| CN201133701Y (en) * | 2007-11-14 | 2008-10-15 | 张诗琛 | Air exhausting apparatus for chemical education equipment |
| CN201373535Y (en) * | 2009-03-23 | 2009-12-30 | 上海淮亩节能环保科技有限公司 | Shunting rated uniform air feeding and returning device of long air duct |
-
2009
- 2009-03-23 CN CN200920069254U patent/CN201373535Y/en not_active Expired - Lifetime
-
2010
- 2010-03-02 WO PCT/CN2010/070824 patent/WO2010108403A1/en active Application Filing
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010108403A1 (en) * | 2009-03-23 | 2010-09-30 | Wu Xiping | Long air pipe for distributing supplying air and returning air ratedly and uniformly |
| CN101509696B (en) * | 2009-03-23 | 2010-12-08 | 上海淮亩节能环保科技有限公司 | Long wind pipe uniform wind sending and returning method and device thereof |
| CN107270454A (en) * | 2017-08-03 | 2017-10-20 | 吴喜平 | Catch basin flow equalizing low-resistance power air diffuser |
| CN107740896A (en) * | 2017-08-16 | 2018-02-27 | 吴喜平 | The equal overflow pipe threeway of lower resistance |
| CN107740888A (en) * | 2017-08-16 | 2018-02-27 | 吴喜平 | Lower resistance flows long water pipe |
| CN112856666A (en) * | 2021-02-04 | 2021-05-28 | 山东海福德机械有限公司 | Roots blower automatically regulated air supply system |
| CN112856666B (en) * | 2021-02-04 | 2021-09-14 | 山东海福德机械有限公司 | Roots blower automatically regulated air supply system |
| CN113551525A (en) * | 2021-07-01 | 2021-10-26 | 武汉科技大学 | Integrated sintering flue gas external circulation system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010108403A1 (en) | 2010-09-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20091230 Effective date of abandoning: 20090323 |