CN116571371B - Ejector device combining distributed two-dimensional spray pipe and traditional circumferential seam - Google Patents
Ejector device combining distributed two-dimensional spray pipe and traditional circumferential seam Download PDFInfo
- Publication number
- CN116571371B CN116571371B CN202310821543.9A CN202310821543A CN116571371B CN 116571371 B CN116571371 B CN 116571371B CN 202310821543 A CN202310821543 A CN 202310821543A CN 116571371 B CN116571371 B CN 116571371B
- Authority
- CN
- China
- Prior art keywords
- ejector
- spray pipe
- section
- gas
- dimensional
- 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.)
- Active
Links
- 239000007921 spray Substances 0.000 title claims abstract description 112
- 238000002156 mixing Methods 0.000 claims abstract description 53
- 238000002347 injection Methods 0.000 claims abstract description 41
- 239000007924 injection Substances 0.000 claims abstract description 41
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 238000005094 computer simulation Methods 0.000 claims description 3
- 239000000565 sealant Substances 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 78
- 239000012530 fluid Substances 0.000 description 15
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 239000010410 layer Substances 0.000 description 5
- 239000003345 natural gas Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000003570 air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
- B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
- B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
- B05B17/0692—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by a fluid
Abstract
The invention belongs to the technical field of mechanical design and flow control, and discloses an ejector device combining a distributed two-dimensional spray pipe with a traditional circumferential seam. The ejector device comprises four parts, namely an ejector shell, a gas collection chamber, a circular seam ejector body and a two-dimensional spray pipe ejector body, which are arranged from outside to inside, wherein the two-dimensional spray pipe ejector body comprises a plurality of two-dimensional spray pipe unit bodies. The circular seam injection body is positioned at the inner side of the injector shell; the two-dimensional spray pipe unit body is positioned at the inner side of the circular seam injection body. Both sides of the front end of the circular seam injection body and the front end of the two-dimensional spray pipe unit body are communicated with the gas collection chamber; the rear sections of the circular seam ejector bodies are provided with jet pipes, the rear sections of the two-dimensional jet pipe unit bodies are provided with two-dimensional jet pipes, and the jet pipes and the two-dimensional jet pipes are ejector gas channels; the air flow channel between the two-dimensional spray pipe unit bodies is an ejected air channel. The ejector device increases the mixing area of the ejected gas and the ejected gas, improves the mixing degree of the ejected gas and the ejected gas, and improves the ejection efficiency.
Description
Technical Field
The invention belongs to the technical field of mechanical design and flow control, and particularly relates to an ejector device combining a distributed two-dimensional spray pipe with a traditional circumferential seam.
Background
Fluids are a collective term for gases and liquids, and most fluids such as oil, gas, water and air are indispensable substances for life, production and scientific research of people.
In general life, the requirements of people on the flowing speed of fluid are not high, such as tap water, fuel oil, heating air, natural gas and the like, and the requirements can be met only by a certain flowing speed and flow. However, in production and scientific research activities, it is often necessary to inject a low energy fluid through a high energy fluid. In a power plant, different types of ejector devices are required to be designed and installed for ejecting low-energy fluid, such as fuel combustion equipment, a steam boiler water supply system, a steam turbine regulating system and the like; in the middle and later period exploitation process of the natural gas field, as the gas field pressure is lower, an ejector device is required to be additionally arranged to eject the natural gas with relatively lower air pressure so as to improve the natural gas yield; in a temporary flushing type high-speed wind tunnel, a corresponding ejector device is required to be designed at the downstream of a wind tunnel pipeline, and the upstream air flow is ejected, so that the air flow of a test section can easily meet the corresponding design requirement; the pressure recovery system of the pneumatic laser and the chemical laser needs to be designed and installed with a high-efficiency ejector device.
The traditional circular seam ejector device adopts the structural form of a single circular seam, is the ejector device with earliest application time and simplest processing and manufacturing, and has the following defects: the injection fluid and the injected fluid have only one mixing surface, so that the energy and substance exchange area is smaller, and the injection efficiency is lower; secondly, the mixing speed of the injected fluid and the injected fluid is low, the required mixing section is longer, and the uniformity of the mixed fluid is poor; thirdly, the ejector device is large in overall dimension and high in installation space requirement. Because the traditional circular seam injector device sprays high-speed fluid from the circular seam, the wall surface of the blending section is powerfully scoured, the wall surface of the blending section is basically free of a fluid boundary layer, and the flow area of the blending fluid is effectively ensured.
The main factor influencing the injection efficiency of the injector device is the mixing degree of the injected gas and the injected gas, and the higher the mixing degree is, the higher the injection efficiency is. With the continuous progress of technology, the distributed design concept is widely applied in various fields. The distributed two-dimensional jet pipe ejector device is a high-efficiency ejector device, adopts a distributed design idea, increases the mixing surface of ejected gas and ejected gas by arranging a certain number of two-dimensional jet pipe unit bodies, and improves the ejection efficiency. However, the distributed two-way nozzle injector device still suffers from the following disadvantages: for the axisymmetric ejector device, the two-dimensional spray pipe units have different widths, and the ejection effect of the adjacent areas near the wall surface of the mixing section at one side of the short two-dimensional spray pipe unit is poor between the adjacent two-dimensional spray pipe units; secondly, the wall surface of the mixing section of the distributed two-dimensional spray pipe ejector has a boundary layer with a certain thickness, and along with the development of flow, the boundary layer can be gradually thickened, the flow area of the mixing section can be gradually reduced, and the ejection efficiency of the ejector is affected.
In order to further improve the injection efficiency of the injector device, an innovative technical means is needed, the advantages of the distributed two-dimensional nozzle injector device and the traditional circular seam injector device are fully exerted, two injection modes are designed in a fusion mode, and the injection efficiency of the injector device is further improved. Currently, there is a need to develop an ejector device that combines a distributed two-way nozzle with a traditional circumferential seam.
Disclosure of Invention
The invention aims to solve the technical problem of providing an ejector device combining a distributed two-dimensional spray pipe and a traditional circular seam, which is used for improving the mixing degree of ejected gas and improving the ejection efficiency.
The ejector device combining the distributed two-dimensional spray pipe with the traditional circular seam is characterized by comprising an ejector shell, a gas collection chamber, a circular seam ejector body and a two-dimensional spray pipe ejector body which are arranged from outside to inside; the circular seam injection body is positioned at the inner side of the injector shell; the two-dimensional spray pipe ejector comprises a plurality of two-dimensional spray pipe unit bodies, and the two-dimensional spray pipe unit bodies are positioned on the inner side of the circular seam ejector;
the ejector shell consists of a front section of an ejector binary ejector pipe section, an ejector gas inlet section and a rear section of the ejector; the gas collection chamber is composed of a binary jet pipe section of the ejector, an ejection gas inlet section and a cavity communicated with the rear section of the ejector; the circular seam injection cavity consists of the surface of the shell of the rear section of the binary injection pipe section of the injector and the inner surface of the front end of the rear section of the injector; the two-dimensional spray pipe ejector body consists of a plurality of two-dimensional spray pipe unit bodies;
the circular seam ejector body is of an axisymmetric structure, the cross section of the circular seam ejector body is in a circular ring shape, the front end of the circular seam ejector body is communicated with the air collection chamber, and the outer surface of the rear section shell of the binary ejector pipe section of the ejector at the rear section of the circular seam ejector body and the inner surface of the front end of the rear section of the ejector are provided with jet pipes;
the two-dimensional spray pipe unit body is a flat box body, two sides of the front section of the two-dimensional spray pipe unit body are communicated with the gas collection chamber, and the rear section of the two-dimensional spray pipe unit body is provided with the two-dimensional spray pipe; the channel between the two-dimensional spray pipe unit bodies is an ejected gas channel;
the injection gas inlet section is provided with a high-pressure gas inlet, and the gas collection chamber is communicated with the high-pressure gas inlet;
the rear section of the ejector consists of a blending section for providing a blending area and an expansion section with a decelerating and pressurizing effect;
the rear section of the ejector sequentially comprises a mixing section and an expanding section, wherein the mixing section is a mixing area of the ejected gas and the ejected gas, and the expanding section has the functions of reducing speed and boosting pressure;
the injected gas flows into the mixing section through the injected gas channel; meanwhile, after the high-pressure gas enters the gas collection chamber from the high-pressure gas inlet, the high-pressure gas is ejected by the circular seam ejector and the two-dimensional nozzle ejector to form ejection gas; the injection gas ejected by the circular seam injection body forms an annular exchange area in the mixing area of the mixing section, and the injection gas ejected by the two-dimensional spray pipe injection body forms a plurality of flat plate-shaped exchange areas which are vertically symmetrical in the mixing area of the mixing section; the injected gas and the injected gas flow into the expansion section after being mixed in the mixing section.
Further, the high-pressure gas pressure is sufficient to enable the spray pipe to generate supersonic flow, and the high-pressure gas pressure is determined by the pressure of the spray pipe profile and the blending section.
Further, the spray pipe is one or two of a full spray pipe and a half spray pipe; the section shape of the full spray pipe is symmetrical relative to the central line of the circular seam cavity, the inner and outer side profiles shrink and then expand, and a throat is formed in the middle; the cross section of the outer side of the half spray pipe is the same as that of the outer side of the full spray pipe, and the inner side is a smooth wall surface; the nozzle Mach number is determined by the ratio of the diverging exit dimension to the throat dimension, with the larger the ratio, the larger the nozzle Mach number.
Further, the two-component ejector pipe section and the ejector gas inlet section and the ejector rear section are sealed by sealant or sealing gasket.
Further, the size, the number and the distance of the two-dimensional spray pipe units are determined through computer simulation according to the size of the inner cavity of the ejector and the flow of the ejected gas.
Further, the hollow reinforcing ribs are arranged between the two-dimensional spray pipe unit bodies and used for increasing the structural strength of the two-dimensional spray pipe injection body, and meanwhile, the air flow channels in the hollow reinforcing ribs are used as high-pressure air flow channels, so that the injection air flow efficiency is improved, and the capacity of the air collection chamber is increased.
The ejector device combining the distributed two-dimensional spray pipe and the traditional circumferential seam adopts a design method combining the injection of the distributed two-dimensional spray pipe and the injection of the traditional circumferential seam, and fully exerts the advantages of the ejector device with two different structural forms; the thin-layer high-energy gas (or high-speed gas or jet gas) in the shape of a plurality of flat plates generated by the two-dimensional jet pipe unit bodies and the cylindrical thin-layer high-energy gas generated by the circumferential jet body form an approximately closed-loop energy and substance (mass) exchange area together, so that the jet of low-energy gas (or low-speed gas or jet gas) is well realized.
The annular gap of the circumferential ejector body of the ejector device combining the distributed two-dimensional spray pipe and the traditional annular gap forms the traditional annular gap ejector, the cylindrical jet gas sprayed in the annular gap has a strong scouring effect on the wall surface of the mixing section, the generation and development of the surface layer of the wall surface of the mixing section are reduced, the circulation efficiency of the mixing section is fully ensured, and the positive effect on the improvement of the ejection efficiency is exerted.
The ejector device combining the distributed two-dimensional spray pipe and the traditional circular seam fully utilizes the connection structure of the ejector two-dimensional spray pipe section, the ejector gas inlet section and the ejector rear section, a natural annular gap is formed between the ejector two-dimensional spray pipe section and the ejector rear section, and the influence of the traditional circular seam ejector device on the external dimension of the ejector device is reduced.
The two-dimensional jet pipe jet body airflow channel of the distributed two-dimensional jet pipe and traditional annular seam combined jet device and the annular pipeline of the circumferential jet body jointly form a natural high-capacity air collection chamber, so that enough high-energy gas can be provided for the two-dimensional jet pipe unit body; the jet body airflow channel of the two-dimensional spray pipe is also beneficial to the rapid balance of the gas pressure of the gas collection chamber and the unit body of the two-dimensional spray pipe.
The ejector device combining the distributed two-dimensional spray pipe with the traditional circumferential seam is suitable for fluid ejection control including gas and liquid.
In short, the ejector device combining the distributed two-dimensional spray pipe and the traditional circumferential seam fully plays the advantages of the ejection of the distributed two-dimensional spray pipe and the ejection of the traditional circumferential seam, increases the mixing degree of ejected gas and ejected gas, inhibits the influence of the development of the surface layer of the wall surface of the mixing section on the flow area, and effectively improves the ejection efficiency of the ejector device.
Drawings
FIG. 1 is a schematic diagram of a distributed two-dimensional nozzle and traditional circumferential seam combined ejector device;
FIG. 2 is a schematic view of section A of an ejector device combining a distributed two-dimensional nozzle of the present invention with a conventional circumferential seam;
FIG. 3 is a schematic B-section view of an ejector device combining a distributed two-dimensional nozzle of the present invention with a conventional circumferential seam.
In the figure, 1. An ejector binary spray pipe section; 2. an injection gas inlet section; 3. the rear section of the ejector; 4. a plenum chamber; 5. a blending section; 6. an expansion section; 7. a two-dimensional spray pipe unit body.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Example 1:
as shown in fig. 1 to 3, the ejector device combining the distributed two-dimensional spray pipe and the traditional circular seam in the embodiment comprises four parts, namely an ejector shell, a gas collection chamber 4, a circular seam ejector body and a two-dimensional spray pipe ejector body, which are arranged from outside to inside; the circular seam injection body is positioned at the inner side of the injector shell; the two-dimensional spray pipe ejector comprises a plurality of two-dimensional spray pipe unit bodies 7, and the two-dimensional spray pipe unit bodies 7 are positioned on the inner side of the circular seam ejector;
the ejector shell consists of a front section of an ejector binary ejector pipe section 1, an ejector gas inlet section 2 and an ejector rear section 3; the gas collection chamber 4 is formed by a cavity communicated among the ejector binary spray pipe section 1, the ejector gas inlet section 2 and the ejector rear section 3; the circular seam injection cavity consists of the surface of the shell of the rear section of the binary injection pipe section 1 of the injector and the inner surface of the front end of the rear section 3 of the injector; the two-dimensional spray pipe ejector body consists of a plurality of two-dimensional spray pipe unit bodies 7;
the circular seam ejector body is of an axisymmetric structure, the cross section of the circular seam ejector body is in a circular ring shape, the front end of the circular seam ejector body is communicated with the air collection chamber 4, and the outer surface of the rear section shell of the ejector binary spray pipe section 1 of the rear section of the circular seam ejector body and the inner surface of the front end of the rear section 3 of the ejector are provided with spray pipes;
the two-dimensional spray pipe unit body 7 is a flat box body, two sides of the front section of the two-dimensional spray pipe unit body 7 are communicated with the air collection chamber 4, and the rear section of the two-dimensional spray pipe unit body is provided with two-dimensional spray pipes; the channel between the two-dimensional spray pipe unit bodies 7 is an ejected gas channel;
the injection gas inlet section 2 is provided with a high-pressure gas inlet, and the gas collection chamber 4 is communicated with the high-pressure gas inlet;
the rear section 3 of the ejector sequentially comprises a mixing section 5 and an expanding section 6, wherein the mixing section 5 is a mixing area of the ejected gas and the ejected gas, and the expanding section 6 has the functions of reducing speed and boosting pressure;
the injected gas flows into the mixing section 5 through the injected gas channel; meanwhile, after the high-pressure gas enters the gas collection chamber 4 from the high-pressure gas inlet, the high-pressure gas is ejected by the circular seam ejector and the two-dimensional nozzle ejector to form ejection gas; the injection gas ejected by the circular seam injection body forms an annular exchange area in the mixing area of the mixing section 5, and the injection gas ejected by the two-dimensional spray pipe injection body forms a plurality of flat plate-shaped exchange areas which are vertically symmetrical in the mixing area of the mixing section 5; the injected gas and the injected gas are mixed in the mixing section 5 and then flow into the expansion section 6.
Further, the high pressure gas pressure is sufficient to cause supersonic flow through the nozzle, and the high pressure gas pressure is determined by the nozzle profile and the pressure of the blending section 5.
Further, the spray pipe is one or two of a full spray pipe and a half spray pipe; the section shape of the full spray pipe is symmetrical relative to the central line of the circular seam cavity, the inner and outer side profiles shrink and then expand, and a throat is formed in the middle; the cross section of the outer side of the half spray pipe is the same as that of the outer side of the full spray pipe, and the inner side is a smooth wall surface; the nozzle Mach number is determined by the ratio of the diverging exit dimension to the throat dimension, with the larger the ratio, the larger the nozzle Mach number.
Further, sealing is carried out between the ejector binary spray pipe section 1 and the ejector gas inlet section 2 and between the ejector gas inlet section 2 and the ejector rear section 3 through sealing glue or sealing gaskets.
Further, the size, the number and the distance of the two-dimensional spray pipe unit bodies 7 are determined through computer simulation according to the size of the inner cavity of the ejector and the flow of the ejected gas.
Further, the hollow reinforcing ribs are arranged between the two-dimensional spray pipe unit bodies 7 and used for increasing the structural strength of the two-dimensional spray pipe injection body, and meanwhile, the air flow channels in the hollow reinforcing ribs are used as high-pressure air flow channels, so that the injection air flow efficiency is improved, and the capacity of the air collection chamber 4 is increased.
The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the present invention without inventive work by those skilled in the art from the above-described concepts.
Claims (6)
1. The ejector device combining the distributed two-dimensional spray pipe and the traditional circumferential seam is characterized by comprising an ejector shell, a gas collection chamber (4), a circumferential seam ejector body and a two-dimensional spray pipe ejector body which are arranged from outside to inside; the circular seam injection body is positioned at the inner side of the injector shell; the two-dimensional spray pipe ejector comprises a plurality of two-dimensional spray pipe unit bodies (7), and the two-dimensional spray pipe unit bodies (7) are positioned on the inner side of the circular seam ejector;
the ejector shell consists of a front section of an ejector binary ejector pipe section (1), an ejector gas inlet section (2) and a rear section (3) of the ejector; the gas collection chamber (4) is formed by a cavity communicated among the ejector binary spray pipe section (1), the ejector gas inlet section (2) and the ejector rear section (3); the circular seam injection cavity consists of the surface of the shell of the rear section of the binary injection pipe section (1) of the injector and the inner surface of the front end of the rear section (3) of the injector; the two-dimensional spray pipe ejector consists of a plurality of two-dimensional spray pipe unit bodies (7);
the circular seam ejector body is of an axisymmetric structure, the cross section of the circular seam ejector body is in a circular ring shape, the front end of the circular seam ejector body is communicated with the air collection chamber (4), and the outer surface of a rear section shell of the ejector binary spray pipe section (1) of the rear section of the circular seam ejector body and the inner surface of the front end of the rear section (3) of the ejector are provided with spray pipes;
the two-dimensional spray pipe unit body (7) is a flat box body, two sides of the front section of the two-dimensional spray pipe unit body (7) are communicated with the air collection chamber (4), and the rear section of the two-dimensional spray pipe unit body is provided with two-dimensional spray pipes; the channel between the two-dimensional spray pipe unit bodies (7) is an ejected gas channel;
the injection gas inlet section (2) is provided with a high-pressure gas inlet, and the gas collection chamber (4) is communicated with the high-pressure gas inlet;
the rear section (3) of the ejector sequentially comprises a blending section (5) and an expansion section (6), wherein the blending section (5) is a blending area of the ejected gas and the ejected gas, and the expansion section (6) has a decelerating and pressurizing effect;
the injected gas flows into the mixing section (5) through the injected gas channel; meanwhile, after the high-pressure gas enters the gas collection chamber (4) from the high-pressure gas inlet, the high-pressure gas is ejected by the circular seam ejector and the two-dimensional nozzle ejector to form ejection gas; the injection gas ejected by the circular seam injection body forms an annular exchange area in the mixing area of the mixing section (5), and the injection gas ejected by the two-dimensional spray pipe injection body forms a plurality of flat plate-shaped exchange areas which are vertically symmetrical in the mixing area of the mixing section (5); the injected gas and the injected gas flow into the expansion section (6) after being mixed in the mixing section (5).
2. The ejector device combining the distributed two-dimensional spray pipe and the traditional circumferential seam according to claim 1, wherein the high-pressure gas pressure is enough to enable the spray pipe to generate supersonic flow, the high-pressure gas pressure is determined by the spray pipe molded surface and the pressure of the blending section (5), and the pressure range of the high-pressure gas is 0.6-0.8 MPa.
3. The ejector device combining the distributed two-dimensional spray pipe and the traditional circumferential seam according to claim 1, wherein the spray pipe is one or two of a full spray pipe and a half spray pipe; the section shape of the full spray pipe is symmetrical relative to the central line of the circular seam cavity, the inner and outer side profiles shrink and then expand, and a throat is formed in the middle; the cross section of the outer side of the half spray pipe is the same as that of the outer side of the full spray pipe, and the inner side is a smooth wall surface; the nozzle Mach number is determined by the ratio of the diverging exit dimension to the throat dimension, with the larger the ratio, the larger the nozzle Mach number.
4. The ejector device combining the distributed two-dimensional spray pipe and the traditional circular seam according to claim 1, wherein the ejector two-dimensional spray pipe section (1) and the ejector gas inlet section (2) and the ejector rear section (3) are sealed through sealant or sealing gaskets.
5. The ejector device combining the distributed two-dimensional spray pipe and the traditional circumferential seam according to claim 1, wherein the size, the number and the distance of the two-dimensional spray pipe unit bodies (7) are determined through computer simulation according to the size of an inner cavity of the ejector and the flow of ejected gas.
6. The ejector device combining the distributed two-dimensional spray pipe and the traditional circumferential seam according to claim 1, wherein hollow reinforcing ribs are arranged between the two-dimensional spray pipe unit bodies (7) and used for increasing the structural strength of the two-dimensional spray pipe ejector body, and meanwhile, an air flow channel in the hollow reinforcing ribs is used as a high-pressure air flow channel, so that the ejector air circulation efficiency is improved, and the capacity of the air collection chamber (4) is increased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310821543.9A CN116571371B (en) | 2023-07-06 | 2023-07-06 | Ejector device combining distributed two-dimensional spray pipe and traditional circumferential seam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310821543.9A CN116571371B (en) | 2023-07-06 | 2023-07-06 | Ejector device combining distributed two-dimensional spray pipe and traditional circumferential seam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116571371A CN116571371A (en) | 2023-08-11 |
| CN116571371B true CN116571371B (en) | 2023-09-08 |
Family
ID=87536096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310821543.9A Active CN116571371B (en) | 2023-07-06 | 2023-07-06 | Ejector device combining distributed two-dimensional spray pipe and traditional circumferential seam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116571371B (en) |
Citations (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL43402A0 (en) * | 1972-11-30 | 1974-03-14 | Rockwell International Corp | Compound ejector |
| US3933179A (en) * | 1974-02-27 | 1976-01-20 | Hechler Iv Valentine | Water and concentrate supply valves for proportioning mixer-dispenser |
| DE4425927A1 (en) * | 1994-07-21 | 1996-01-25 | Bernd Otte | Method of cleaning pipes containing liquids |
| CN201500605U (en) * | 2009-06-29 | 2010-06-09 | 安徽工业大学 | venturi ejector |
| CN102410264A (en) * | 2010-09-22 | 2012-04-11 | 任文华 | Fan device |
| CN102606544A (en) * | 2012-04-18 | 2012-07-25 | 王伟光 | Vacuum generator |
| CN102954047A (en) * | 2011-08-31 | 2013-03-06 | 韩铁夫 | Injection mixer |
| WO2013029476A1 (en) * | 2011-08-31 | 2013-03-07 | Han Tiefu | Annular jet pump |
| JP2013053528A (en) * | 2011-09-01 | 2013-03-21 | Panasonic Corp | Blowing device |
| CN103423214A (en) * | 2012-05-25 | 2013-12-04 | 韩铁夫 | Compound series-level jet pump |
| CN203348042U (en) * | 2013-01-07 | 2013-12-18 | 胡晓存 | Bladeless fan component |
| CA2826478A1 (en) * | 2012-09-17 | 2014-03-17 | Pratt & Whitney Canada Corp. | Tec mixer with variable thicknesses |
| CN104245147A (en) * | 2012-04-12 | 2014-12-24 | 诺信公司 | Powder spray gun comprising a wear resistant electrode support |
| CN205117398U (en) * | 2015-11-04 | 2016-03-30 | 山东恒远机电开发有限公司 | Novel draw valve er wasi induction unit |
| JP2017115629A (en) * | 2015-12-22 | 2017-06-29 | パナソニックＩｐマネジメント株式会社 | Blower module and air cleaner with blower module function |
| GB201819581D0 (en) * | 2018-11-30 | 2019-01-16 | Labman Automation Ltd | Spray head |
| CN209180943U (en) * | 2018-11-04 | 2019-07-30 | 佛山市科皓燃烧设备制造有限公司 | A kind of inside smoke flows back low NOx self preheating burner |
| CN110608205A (en) * | 2018-06-15 | 2019-12-24 | 北京航空航天大学 | Air-entraining ring for injection inflation system |
| CN210033982U (en) * | 2019-06-06 | 2020-02-07 | 山东国阳机电设备有限公司 | Wind expander for underground tunneling of coal mine |
| CN211576516U (en) * | 2020-04-13 | 2020-09-25 | 中国航空工业集团公司哈尔滨空气动力研究所 | Mars wind tunnel with sand simulation function |
| CN111911465A (en) * | 2020-09-09 | 2020-11-10 | 中国空气动力研究与发展中心高速空气动力研究所 | Distributed binary spray pipe ejector device |
| CN111997780A (en) * | 2020-09-02 | 2020-11-27 | 南昌航空大学 | Claw-type wave crest spoiler for alternating lobe spray pipe |
| CN112654558A (en) * | 2018-05-29 | 2021-04-13 | 杰托普特拉股份有限公司 | Streamlined body with boundary suction fluid propulsion element |
| CN113756957A (en) * | 2021-09-18 | 2021-12-07 | 贵州黎阳天翔科技有限公司 | Ejector of miniature gas turbine |
| CN113958540A (en) * | 2021-10-20 | 2022-01-21 | 贵州永红航空机械有限责任公司 | Supersonic air injection device |
| JPWO2022024646A1 (en) * | 2020-07-31 | 2022-02-03 | ||
| CN116067610A (en) * | 2023-04-06 | 2023-05-05 | 中国空气动力研究与发展中心空天技术研究所 | Cold and hot air flow mixing device capable of adjusting air flow temperature in wide range under low Mach number |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012220358A1 (en) * | 2012-11-08 | 2014-06-12 | Rolls-Royce Deutschland Ltd & Co Kg | Nozzle with guide devices |
| EP3322902B1 (en) * | 2015-07-15 | 2019-06-12 | Basf Se | Ejector nozzle and use of the ejector nozzle |
-
2023
- 2023-07-06 CN CN202310821543.9A patent/CN116571371B/en active Active
Patent Citations (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL43402A0 (en) * | 1972-11-30 | 1974-03-14 | Rockwell International Corp | Compound ejector |
| US3933179A (en) * | 1974-02-27 | 1976-01-20 | Hechler Iv Valentine | Water and concentrate supply valves for proportioning mixer-dispenser |
| DE4425927A1 (en) * | 1994-07-21 | 1996-01-25 | Bernd Otte | Method of cleaning pipes containing liquids |
| CN201500605U (en) * | 2009-06-29 | 2010-06-09 | 安徽工业大学 | venturi ejector |
| CN102410264A (en) * | 2010-09-22 | 2012-04-11 | 任文华 | Fan device |
| CN102954047A (en) * | 2011-08-31 | 2013-03-06 | 韩铁夫 | Injection mixer |
| WO2013029476A1 (en) * | 2011-08-31 | 2013-03-07 | Han Tiefu | Annular jet pump |
| JP2013053528A (en) * | 2011-09-01 | 2013-03-21 | Panasonic Corp | Blowing device |
| CN104245147A (en) * | 2012-04-12 | 2014-12-24 | 诺信公司 | Powder spray gun comprising a wear resistant electrode support |
| CN102606544A (en) * | 2012-04-18 | 2012-07-25 | 王伟光 | Vacuum generator |
| CN103423214A (en) * | 2012-05-25 | 2013-12-04 | 韩铁夫 | Compound series-level jet pump |
| CA2826478A1 (en) * | 2012-09-17 | 2014-03-17 | Pratt & Whitney Canada Corp. | Tec mixer with variable thicknesses |
| CN203348042U (en) * | 2013-01-07 | 2013-12-18 | 胡晓存 | Bladeless fan component |
| CN205117398U (en) * | 2015-11-04 | 2016-03-30 | 山东恒远机电开发有限公司 | Novel draw valve er wasi induction unit |
| JP2017115629A (en) * | 2015-12-22 | 2017-06-29 | パナソニックＩｐマネジメント株式会社 | Blower module and air cleaner with blower module function |
| CN112654558A (en) * | 2018-05-29 | 2021-04-13 | 杰托普特拉股份有限公司 | Streamlined body with boundary suction fluid propulsion element |
| CN110608205A (en) * | 2018-06-15 | 2019-12-24 | 北京航空航天大学 | Air-entraining ring for injection inflation system |
| CN209180943U (en) * | 2018-11-04 | 2019-07-30 | 佛山市科皓燃烧设备制造有限公司 | A kind of inside smoke flows back low NOx self preheating burner |
| GB201819581D0 (en) * | 2018-11-30 | 2019-01-16 | Labman Automation Ltd | Spray head |
| CN210033982U (en) * | 2019-06-06 | 2020-02-07 | 山东国阳机电设备有限公司 | Wind expander for underground tunneling of coal mine |
| CN211576516U (en) * | 2020-04-13 | 2020-09-25 | 中国航空工业集团公司哈尔滨空气动力研究所 | Mars wind tunnel with sand simulation function |
| JPWO2022024646A1 (en) * | 2020-07-31 | 2022-02-03 | ||
| CN111997780A (en) * | 2020-09-02 | 2020-11-27 | 南昌航空大学 | Claw-type wave crest spoiler for alternating lobe spray pipe |
| CN111911465A (en) * | 2020-09-09 | 2020-11-10 | 中国空气动力研究与发展中心高速空气动力研究所 | Distributed binary spray pipe ejector device |
| CN113756957A (en) * | 2021-09-18 | 2021-12-07 | 贵州黎阳天翔科技有限公司 | Ejector of miniature gas turbine |
| CN113958540A (en) * | 2021-10-20 | 2022-01-21 | 贵州永红航空机械有限责任公司 | Supersonic air injection device |
| CN116067610A (en) * | 2023-04-06 | 2023-05-05 | 中国空气动力研究与发展中心空天技术研究所 | Cold and hot air flow mixing device capable of adjusting air flow temperature in wide range under low Mach number |
Non-Patent Citations (1)
| Title |
|---|
| 引射对航空发动机MILD燃烧稳定性的影响;眭晓蔚;王力军;;滨州学院学报(第02期);6-10 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116571371A (en) | 2023-08-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111322278B (en) | Supersonic air ejector | |
| CN109236759B (en) | Supersonic ejector with multi-unit honeycomb combined structure | |
| CN108204382B (en) | Composite jet pump based on combination of central jet flow and annular jet flow | |
| CN104847708B (en) | Supersonic Ejector | |
| CN111911465B (en) | Distributed binary spray pipe ejector device | |
| CN104772241B (en) | Ejector with convergent-divergent nozzle type receiving chamber | |
| CN112058526B (en) | Distributed circumferential seam ejector device | |
| CN113309636B (en) | Double-duct injection device for aircraft engine | |
| CN116571371B (en) | Ejector device combining distributed two-dimensional spray pipe and traditional circumferential seam | |
| CN113339332A (en) | Single-duct injection device for aircraft engine | |
| CN112443518A (en) | Supersonic air ejector | |
| CN103016425B (en) | Three-level multi-spray-pipe central ejector | |
| CN108953178B (en) | Supercritical circulation power generation device and jet shock wave boosting device thereof | |
| CN212838645U (en) | Distributed binary spray pipe ejector device | |
| CN107899771B (en) | Gradually-reduced retractable pipe ejector | |
| CN213133664U (en) | Distributed circumferential seam ejector device | |
| CN109654938B (en) | Online condenser cleaning device and cleaning method for supercavitation high-pressure water jet | |
| CN116538156B (en) | Spatially distributed circular seam injector device | |
| CN116792348A (en) | Ejector device combining space distribution circular seam and traditional circular seam | |
| CN110748508A (en) | Supersonic gas ejector with spirally arranged nozzles | |
| CN202468498U (en) | Axial-flow type jet flow air wave supercharger | |
| CN207161224U (en) | A kind of unsteady annular jet jet pipe for improving pulse detonation engine thrust coefficient | |
| CN210622876U (en) | Brayton cycle power generation system | |
| CN209229786U (en) | Straight pipe type rocket chamber and power drive unit | |
| CN1918440B (en) | Method for producing heat for heating building and constructions and a continuous cavitation heat generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |