CN112066749A - Double-row blade air inlet distributor for vacuum high-temperature equipment - Google Patents
Double-row blade air inlet distributor for vacuum high-temperature equipment Download PDFInfo
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- CN112066749A CN112066749A CN202010938264.7A CN202010938264A CN112066749A CN 112066749 A CN112066749 A CN 112066749A CN 202010938264 A CN202010938264 A CN 202010938264A CN 112066749 A CN112066749 A CN 112066749A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B9/00—Auxiliary systems, arrangements, or devices
- F28B9/02—Auxiliary systems, arrangements, or devices for feeding steam or vapour to condensers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
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- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention discloses a double-row blade air inlet distributor for vacuum high-temperature equipment. The air inlet distributor comprises an air inlet channel and an air inlet circulating channel which are sequentially connected from front to back, and double-row blade air flow channels which are symmetrically distributed and positioned on two sides of the air inlet circulating channel. The airflow inlet channel comprises a flange I and a circular tube which are sequentially connected from front to back; the air inlet airflow channel is a trapezoidal channel which is bilaterally symmetrical and has a large front end section area and a small rear end section area, the air inlet airflow channel comprises an upper sealing plate positioned above, a lower sealing plate positioned below and a sealing plate positioned on the rear end face, and the front end of the air inlet airflow channel is communicated with the airflow inlet channel; the double-row blade airflow channel comprises double-row blades which are bilaterally symmetrical and are fixed between the upper sealing plate and the lower sealing plate in parallel from front to back at equal intervals. The gas inlet distributor has the advantages of simple structure, small inlet resistance, good gas distribution effect, large gas drift diameter, gas impact resistance and simple and convenient assembly and installation.
Description
Technical Field
The invention belongs to the technical field of wind tunnel equipment, and particularly relates to a double-row blade air inlet distributor for vacuum high-temperature equipment.
Background
In the test process of the vacuum high-temperature equipment, the gas entering the condenser has higher temperature and is influenced by pressure, the flowing speed of the gas is also higher, usually 50 m/s-70 m/s, if no measures are taken, the high-temperature high-speed gas flow directly rushes into the opposite side wall of the gas inlet and flows along the side wall to the outlet direction, so that the working efficiency of the condenser is seriously reduced, and the heat exchange effect is greatly reduced.
It is necessary to design a double-row blade air inlet distributor, so that the air entering the condenser is uniformly distributed in the inner cavity of the whole condenser, and the heat exchange efficiency of the condenser is improved.
Currently, there is a need to develop a double-row vane inlet distributor for vacuum high-temperature equipment.
Disclosure of Invention
The invention aims to solve the technical problem of providing a double-row blade air inlet distributor for vacuum high-temperature equipment.
The invention relates to a double-row blade air inlet distributor for vacuum high-temperature equipment, which is characterized in that: the double-row blade air inlet distributor comprises an airflow inlet channel and an air inlet circulation channel which are sequentially connected from front to back, and double-row blade airflow channels which are symmetrically distributed and positioned on two sides of the air inlet circulation channel; the airflow inlet channel, the air inlet circulation channel and the airflow channel with double rows of blades are coaxial;
the air inlet channel comprises a flange I and a circular tube which are sequentially connected from front to back, the flange I is fixed on the air inlet pipeline, and the circular tube is hermetically fixed on a circular opening of the equipment shell at the front end of the air inlet circulation channel;
the air inlet airflow channel is a trapezoidal channel which is bilaterally symmetrical and has a large front end section area and a small rear end section area, and comprises an upper sealing plate positioned above, a lower sealing plate positioned below and a sealing plate positioned on the rear end surface, and the front end of the air inlet airflow channel is communicated with the airflow inlet channel;
the double-row blade airflow channel comprises double-row blades which are bilaterally symmetrical and fixed between the upper sealing plate and the lower sealing plate in parallel from front to back at equal intervals;
each blade of the double-row blades is divided into three sections, the shaft is taken as the inner side, and the blades comprise a straight section I, an original arc section and a straight section II which are sequentially connected from inside to outside; the height of each blade is L, the distance between adjacent blades is D, and L: D ═ 1.1-1.3: 1.
Furthermore, reinforcing ribs are welded on the upper sealing plate and the lower sealing plate.
Furthermore, the double-row blades are fixed between the upper sealing plate and the lower sealing plate through a flange II.
Furthermore, the double-row blades are fixed between the upper sealing plate and the lower sealing plate through bolts and nuts.
Furthermore, the number of each row of the double rows of the blades is 4-10.
Furthermore, the flow guiding bending angle of each blade of the double rows of blades is the same, and the flow guiding bending angle range of the blades is 65-75 degrees.
Furthermore, the length of the straight section I and the length of the straight section II of the double-row blade are the same, and the radius range of the original arc section is 100 mm-480 mm.
According to the double-row blade air inlet distributor for the vacuum high-temperature equipment, disclosed by the invention, the medium gas of the air inlet pipeline flows into the air inlet circulation channel from the airflow inlet channel, is shunted by the double-row blade airflow channel and then enters the vacuum high-temperature equipment.
The double-row blade air inlet distributor for the vacuum high-temperature equipment can be used for providing universality, and the number of each row of blades is 4-10 according to the caliber of the used equipment.
The double-row blades in the double-row blade air inlet distributor for the vacuum high-temperature equipment are equal in distance and symmetrically distributed along the central axis, so that the symmetry and uniformity of air inlet flow distribution can be ensured.
The height of the double-row blades in the double-row blade air inlet distributor for the vacuum high-temperature equipment is larger than the diameter of the airflow inlet channel, so that the effective flow area of airflow can be ensured.
The double-row blades in the double-row blade air inlet distributor for the vacuum high-temperature equipment are fixed by bolts or flanges, and the double-row blade air inlet distributor has the characteristics of convenience in assembly and installation.
The double-row blade gas inlet distributor for the vacuum high-temperature equipment has the advantages of simple structure, small inlet resistance, good gas distribution effect, large gas drift diameter, gas impact resistance and simple and convenient assembly and installation.
Drawings
FIG. 1 is a front view of a double row vane inlet distributor for a vacuum high temperature apparatus of the present invention;
FIG. 2 is a top view of the dual-row vane inlet distributor for a vacuum high temperature apparatus of the present invention;
fig. 3 is a cross-sectional view of a double row vane inlet distributor for a vacuum high temperature apparatus of the present invention.
In the figure, 1, an airflow inlet channel 2, an air inlet circulating channel 3, a double-row blade airflow channel;
101. a flange I102 is a round pipe;
201. an upper seal plate 202, a lower seal plate 203, a seal plate;
301. double row vanes 302 flange II.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Example 1
The number of each row of the double-row blades 301 of the embodiment is 5, the radius is 350mm, the lengths of the straight section I and the straight section II are 250mm, and the flow guide bending angle of the blades is 70 degrees.
As shown in fig. 1 to 3, the double-row vane inlet distributor for a vacuum high-temperature apparatus of the present embodiment comprises an air inlet channel 1 and an air inlet flow channel 2 connected in sequence from front to back, and symmetrically distributed double-row vane air channels 3 located at both sides of the air inlet flow channel 2; the airflow inlet channel 1, the air inlet flow channel 2 and the double-row blade airflow channel 3 are coaxial;
the air inlet channel 1 comprises a flange I101 and a circular tube 102 which are sequentially connected from front to back, the flange I101 is fixed on the air inlet pipeline, and the circular tube 102 is fixed on a circular opening of the equipment shell at the front end of the air inlet circulation channel 2 in a sealing manner;
the air inlet airflow channel 2 is a trapezoidal channel which is bilaterally symmetrical and has a large front end section area and a small rear end section area, the air inlet airflow channel 2 comprises an upper sealing plate 201 positioned above, a lower sealing plate 202 positioned below and a sealing plate 203 positioned on the rear end face, and the front end of the air inlet airflow channel 2 is communicated with the airflow inlet channel 1;
the double-row blade airflow channel 3 comprises double-row blades 301 which are bilaterally symmetrical and fixed between the upper closing plate 201 and the lower closing plate 202 in parallel from front to back at equal intervals;
each blade of the double-row blades 301 is divided into three sections, the shaft is taken as the inner side, and the blades comprise a straight section I, an original arc section and a straight section II which are sequentially connected from inside to outside; the height of each blade is L, the distance between adjacent blades is D, and L: D ═ 1.1-1.3: 1.
Further, reinforcing ribs are welded on the upper sealing plate 201 and the lower sealing plate 202.
Further, the double-row blades 301 are fixed between the upper sealing plate 201 and the lower sealing plate 202 through a flange II 302.
Further, the double row blades 301 are fixed between the upper cover plate 201 and the lower cover plate 202 through bolts and nuts.
Furthermore, the number of the blades in each row of the double-row blades 301 is 4-10.
Further, the flow guiding bending angle of each blade of the double-row blades 301 is the same, and the flow guiding bending angle range of the blade is 65-75 degrees.
Further, the length of the straight section I and the length of the straight section II of the double-row blade 301 are the same, and the radius range of the original arc section is 100 mm-480 mm.
Although the embodiments of the present invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, but it can be applied to various fields suitable for the present invention. Additional modifications and refinements of the present invention will readily occur to those skilled in the art without departing from the principles of the present invention, and therefore the present invention is not limited to the specific details and illustrations shown and described herein without departing from the general concept defined by the claims and their equivalents.
Claims (7)
1. A double-row blade air inlet distributor for vacuum high-temperature equipment is characterized in that: the double-row blade air inlet distributor comprises an airflow inlet channel (1) and an air inlet circulating channel (2) which are sequentially connected from front to back, and double-row blade airflow channels (3) which are symmetrically distributed and positioned on two sides of the air inlet circulating channel (2); the airflow inlet channel (1), the air inlet circulating channel (2) and the airflow channel (3) with double rows of blades are coaxial;
the air inlet channel (1) comprises a flange I (101) and a circular tube (102) which are sequentially connected from front to back, the flange I (101) is fixed on the air inlet pipeline, and the circular tube (102) is fixed on a circular opening of the equipment shell at the front end of the air inlet circulation channel (2) in a sealing manner;
the air inlet airflow channel (2) is a trapezoidal channel which is bilaterally symmetrical and has a large front end section area and a small rear end section area, the air inlet airflow channel (2) comprises an upper sealing plate (201) positioned above, a lower sealing plate (202) positioned below and a sealing plate (203) positioned on the rear end face, and the front end of the air inlet airflow channel (2) is communicated with the airflow inlet channel (1);
the double-row blade airflow channel (3) comprises double-row blades (301) which are bilaterally symmetrical and fixed between the upper sealing plate (201) and the lower sealing plate (202) in parallel from front to back at equal intervals;
each blade of the double-row blades (301) is divided into three sections, the shaft is taken as the inner side, and the blades comprise a straight section I, an original arc section and a straight section II which are sequentially connected from inside to outside; the height of each blade is L, the distance between adjacent blades is D, and L: D ═ 1.1-1.3: 1.
2. The double row vane inlet distributor for a vacuum high temperature apparatus according to claim 1, wherein: and reinforcing ribs are welded on the upper sealing plate (201) and the lower sealing plate (202).
3. The double row vane inlet distributor for a vacuum high temperature apparatus according to claim 1, wherein: the double-row blades (301) are fixed between the upper sealing plate (201) and the lower sealing plate (202) through a flange II (302).
4. The double row vane inlet distributor for a vacuum high temperature apparatus according to claim 1, wherein: the double-row blades (301) are fixed between the upper sealing plate (201) and the lower sealing plate (202) through bolts and nuts.
5. The double row vane inlet distributor for a vacuum high temperature apparatus according to claim 1, wherein: the number of each row of the double rows of the blades (301) is 4-10.
6. The double row vane inlet distributor for a vacuum high temperature apparatus according to claim 1, wherein: the flow guiding bending angle of each blade of the double-row blades (301) is the same, and the flow guiding bending angle range of the blades is 65-75 degrees.
7. The double row vane inlet distributor for a vacuum high temperature apparatus according to claim 1, wherein: the length of the straight section I and the length of the straight section II of the double-row blade (301) are the same, and the radius range of the original arc section is 100 mm-480 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010938264.7A CN112066749A (en) | 2020-09-09 | 2020-09-09 | Double-row blade air inlet distributor for vacuum high-temperature equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010938264.7A CN112066749A (en) | 2020-09-09 | 2020-09-09 | Double-row blade air inlet distributor for vacuum high-temperature equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112066749A true CN112066749A (en) | 2020-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010938264.7A Pending CN112066749A (en) | 2020-09-09 | 2020-09-09 | Double-row blade air inlet distributor for vacuum high-temperature equipment |
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| CN (1) | CN112066749A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116498896A (en) * | 2023-06-27 | 2023-07-28 | 中国空气动力研究与发展中心超高速空气动力研究所 | Fuel supply system of hypersonic high-temperature wind tunnel and design method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4198220A (en) * | 1977-03-31 | 1980-04-15 | Kraftwerk Union Aktiengesellschaft | Screening member for separating solids from gaseous media |
| CN101607184A (en) * | 2009-07-09 | 2009-12-23 | 天津大学 | Combined type gas distributor |
| DE102012023682A1 (en) * | 2012-12-04 | 2014-06-05 | Daimler Ag | Liquid separators for use in fuel cell system of vehicle, have guide element arranged in region for distributing mixture on cross section area of droplet separator, and separator body arranged between inflowing region and collection area |
| CN204365094U (en) * | 2014-12-30 | 2015-06-03 | 上海盛大环保科技有限公司 | A kind of biserial blade folded plate type airflow distribution device |
| CN204544135U (en) * | 2015-02-04 | 2015-08-12 | 北京优工科技有限公司 | The large-scale gas distributor of biserial vane type of mesolow high-temperature service |
| CN209485089U (en) * | 2018-11-09 | 2019-10-11 | 河北建投沙河发电有限责任公司 | A kind of falcate guiding device on air-cooled tube bank surface |
-
2020
- 2020-09-09 CN CN202010938264.7A patent/CN112066749A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4198220A (en) * | 1977-03-31 | 1980-04-15 | Kraftwerk Union Aktiengesellschaft | Screening member for separating solids from gaseous media |
| CN101607184A (en) * | 2009-07-09 | 2009-12-23 | 天津大学 | Combined type gas distributor |
| DE102012023682A1 (en) * | 2012-12-04 | 2014-06-05 | Daimler Ag | Liquid separators for use in fuel cell system of vehicle, have guide element arranged in region for distributing mixture on cross section area of droplet separator, and separator body arranged between inflowing region and collection area |
| CN204365094U (en) * | 2014-12-30 | 2015-06-03 | 上海盛大环保科技有限公司 | A kind of biserial blade folded plate type airflow distribution device |
| CN204544135U (en) * | 2015-02-04 | 2015-08-12 | 北京优工科技有限公司 | The large-scale gas distributor of biserial vane type of mesolow high-temperature service |
| CN209485089U (en) * | 2018-11-09 | 2019-10-11 | 河北建投沙河发电有限责任公司 | A kind of falcate guiding device on air-cooled tube bank surface |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116498896A (en) * | 2023-06-27 | 2023-07-28 | 中国空气动力研究与发展中心超高速空气动力研究所 | Fuel supply system of hypersonic high-temperature wind tunnel and design method thereof |
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Application publication date: 20201211 |