CN113357007A - Injection discharge device - Google Patents
Injection discharge device Download PDFInfo
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- CN113357007A CN113357007A CN202110697513.2A CN202110697513A CN113357007A CN 113357007 A CN113357007 A CN 113357007A CN 202110697513 A CN202110697513 A CN 202110697513A CN 113357007 A CN113357007 A CN 113357007A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/32—Inducing air flow by fluid jet, e.g. ejector action
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/12—Cooling of plants
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Fuel-Injection Apparatus (AREA)
Abstract
The application belongs to the technical field of engine combustion test, concretely relates to draw and penetrate discharging equipment includes: the inner wall of the convergent section gradually shrinks from the inlet end to the outlet end of the convergent section, and a plurality of auxiliary injection holes are formed in the convergent section; each auxiliary injection hole is distributed along the circumferential direction of the convergence section; the inlet end of the expanding section is butted with the outlet end of the converging section, and the inner wall of the expanding section gradually expands from the inlet end to the outlet end of the converging section; the outlet end of the injection pipe extends into the convergence section from the inlet end of the convergence section, is in sliding connection with the corresponding injection hole and extends towards the direction of the expansion section; and the outlet end of each auxiliary injection pipe correspondingly freely extends into the convergent section through one injection hole and points to the direction of the expansion section.
Description
Technical Field
The application belongs to the technical field of engine combustion tests, and particularly relates to an injection discharge device.
Background
In the engine combustion chamber test, a high-altitude low-pressure environment needs to be established to collect and discharge the high-temperature high-speed low-pressure tail gas to the atmosphere, the scheme of one-stage or two-stage spray pipe low-pressure injection is adopted according to the injection principle at present, and the high-pressure gas is used as the main flow to drive the forced flow.
The present application has been made in view of the above-mentioned technical drawbacks.
It should be noted that the above background disclosure is only for the purpose of assisting understanding of the inventive concept and technical solutions of the present invention, and does not necessarily belong to the prior art of the present patent application, and the above background disclosure should not be used for evaluating the novelty and inventive step of the present application without explicit evidence to suggest that the above content is already disclosed at the filing date of the present application.
Disclosure of Invention
It is an object of the present application to provide an ejector discharge device that overcomes or mitigates at least one of the technical disadvantages known to exist.
The technical scheme of the application is as follows:
an ejector drain comprising:
the inner wall of the convergent section gradually shrinks from the inlet end to the outlet end of the convergent section, and a plurality of auxiliary injection holes are formed in the convergent section; each auxiliary injection hole is distributed along the circumferential direction of the convergence section;
the inlet end of the expanding section is butted with the outlet end of the converging section, and the inner wall of the expanding section gradually expands from the inlet end to the outlet end of the converging section;
the outlet end of the injection pipe extends into the convergence section from the inlet end of the convergence section, is in sliding connection with the corresponding injection hole and extends towards the direction of the expansion section;
and the outlet end of each auxiliary injection pipe correspondingly freely extends into the convergent section through one injection hole and points to the direction of the expansion section.
According to at least one embodiment of the application, in the injection and discharge device, each auxiliary injection pipe is provided with a flow regulating valve.
According to at least one embodiment of the present application, the above-mentioned ejection and discharge device further includes:
the annular supporting tube is sleeved on the convergence section and can axially slide along the convergence section; the inlet end of each auxiliary injection pipe is connected to the annular supporting pipe and communicated with the interior of the annular supporting pipe;
and the outlet end of the auxiliary air supply pipe is connected to the annular supporting pipe and communicated with the interior of the annular supporting pipe.
According to at least one embodiment of the present application, the above-mentioned ejection and discharge device further includes:
and the inlet end of the mixing section is in butt joint with the outlet end of the convergence section, and the outlet end of the mixing section is in butt joint with the inlet end of the expansion section.
According to at least one embodiment of the present application, the above-mentioned ejection and discharge device further includes:
the outlet end of the water spray cooling section is butted with the inlet end of the convergence section, and a plurality of water spray cooling holes are formed in the water spray cooling section; each water spray cooling hole is distributed along the circumferential direction of the water spray cooling section;
the outlet end of the speed reducing section is butted with the inlet end of the water spray cooling section, and the inner wall of the speed reducing section gradually expands from the inlet end to the outlet end of the speed reducing section;
the outlet end of the collecting section is in butt joint with the inlet end of the speed reducing section, and the inner wall of the collecting section gradually shrinks from the inlet end to the outlet end of the collecting section.
According to at least one embodiment of the present application, in the injection discharging device, a plurality of rows of water spray cooling holes are distributed along an axial direction of the water spray cooling section.
According to at least one embodiment of the application, in the injection discharge device, the water spray cooling section is internally provided with an annular water spray cooling cavity;
each water spray cooling hole is positioned on the inner wall of the water spray cooling section and is communicated with the annular water spray cooling cavity;
the outer wall of the water spray cooling section is provided with a water spray cooling inlet; the water spray cooling inlet is communicated with the annular water spray cooling cavity.
According to at least one embodiment of the application, in the injection discharge device, the outer wall of the water spray cooling section is provided with a water spray cooling outlet; the water spray cooling outlet is communicated with the annular water spray cooling cavity.
According to at least one embodiment of the present application, in the injection discharging device, the water spraying cooling section is provided with a through hole;
the outlet end of the injection pipe penetrates through the through hole and extends into the convergence section from the inlet end of the convergence section.
According to at least one embodiment of the present application, the above-mentioned ejection and discharge device further includes:
and each direct injection nozzle is correspondingly arranged in one water spray cooling hole.
According to at least one embodiment of the present application, in the injection discharge device, each of the direct injection nozzles is inclined toward the outlet end of the water spray cooling section.
According to at least one embodiment of the present application, in the above injection discharging device, the speed reduction section has an annular water cooling cavity inside;
the outer wall of the speed reduction section is provided with a water cooling inlet and a water cooling outlet; the water-cooling inlet and the water-cooling outlet are communicated with the annular water-cooling cavity.
According to at least one embodiment of the present application, in the injection and discharge device, an inner wall of the collecting section conforms to a vickers curve.
According to at least one embodiment of the present application, in the above-mentioned ejector discharging device, the ejector pipe and the auxiliary ejector pipe are a laval nozzle.
Drawings
FIG. 1 is a schematic diagram of an ejector discharge device provided in an embodiment of the present application;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic view of an auxiliary ejector tube approaching an expansion section according to an embodiment of the present disclosure;
FIG. 4 is a schematic view of an auxiliary ejector tube away from an expansion section according to an embodiment of the present disclosure;
wherein:
1-a convergence section; 2-an expansion section; 3-an injection pipe; 4-auxiliary injection pipe; 5-annular supporting tube; 6-auxiliary gas supply pipe; 7-a mixing section; 8-water spraying cooling section; 9-speed reduction section; 10-a collection section; 11-direct nozzle.
For the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; further, the drawings are for illustrative purposes, and terms describing positional relationships are limited to illustrative illustrations only and are not to be construed as limiting the patent.
Detailed Description
In order to make the technical solutions and advantages of the present application clearer, the technical solutions of the present application will be further clearly and completely described in the following detailed description with reference to the accompanying drawings, and it should be understood that the specific embodiments described herein are only some of the embodiments of the present application, and are only used for explaining the present application, but not limiting the present application. It should be noted that, for convenience of description, only the parts related to the present application are shown in the drawings, other related parts may refer to general designs, and the embodiments and technical features in the embodiments in the present application may be combined with each other to obtain a new embodiment without conflict.
In addition, unless otherwise defined, technical or scientific terms used in the description of the present application shall have the ordinary meaning as understood by one of ordinary skill in the art to which the present application belongs. The terms "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inner", "outer", and the like used in the description of the present application, which indicate orientations, are used only to indicate relative directions or positional relationships, and do not imply that the devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed accordingly, and thus, should not be construed as limiting the present application. The use of "first," "second," "third," and the like in the description of the present application is for descriptive purposes only to distinguish between different components and is not to be construed as indicating or implying relative importance. The use of the terms "a," "an," or "the" and similar referents in the context of describing the application is not to be construed as an absolute limitation on the number, but rather as the presence of at least one. The word "comprising" or "comprises", and the like, when used in this description, is intended to specify the presence of stated elements or items, but not the exclusion of other elements or items.
Further, it is noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and the like are used in the description of the invention in a generic sense, e.g., connected as either a fixed connection or a removable connection or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, or they may be connected through the inside of two elements, and those skilled in the art can understand their specific meaning in this application according to the specific situation.
The present application is described in further detail below with reference to fig. 1 to 4.
An ejector drain comprising:
the inner wall of the convergent section 1 gradually shrinks from the inlet end to the outlet end thereof, and a plurality of auxiliary injection holes are formed in the convergent section; each auxiliary injection hole is distributed along the circumferential direction of the convergence section 1;
the inlet end of the expanding section 2 is butted with the outlet end of the converging section 1, and the inner wall of the expanding section gradually expands from the inlet end to the outlet end of the expanding section;
the outlet end of the injection pipe 3 extends into the convergence section 1 from the inlet end of the convergence section 1 and extends towards the expansion section 2;
the outlet end of each auxiliary injection pipe 4 correspondingly freely extends into the convergent section 1 through one injection hole, is in sliding connection with the corresponding injection hole and points to the direction of the expansion section 2.
To the injection discharging device disclosed by the above embodiment, the skilled person in the field can understand that, in the engine combustion chamber test, the inlet end of the convergent section 1 can be arranged to face the outlet of the engine combustion chamber, high-pressure gas is introduced into each auxiliary injection pipe 4 and injection pipe 3, high-temperature high-speed low-pressure tail gas exhausted from the engine combustion chamber is introduced into the convergent section 1, and the tail gas is depressurized and accelerated through the expansion section 2, enters the convergent section 1 to be pressurized and decelerated, and is exhausted to the atmosphere.
To the injection discharging device disclosed in the above embodiment, those skilled in the art can also understand that the injection discharging device is provided with the injection pipe 3 located in the center of the convergent section 1 and the auxiliary injection pipes 4 surrounding the convergent section 1 to perform air-entraining, so that the exhaust gas discharged from the combustion chamber of the engine has higher injection efficiency.
To the injection discharging device disclosed in the above embodiment, the skilled person in the art can also understand that, under the condition that the injection pipe 3 and the injection amount thereof are fixed, the auxiliary injection pipes 4 can be slid according to the pressure and the flow of the exhaust gas of the engine combustion chamber, and the distance between each auxiliary injection pipe 4 and the expansion section 2 is adjusted to ensure that the exhaust gas of the engine combustion chamber has higher injection efficiency, which can specifically refer to the following operations:
when the pressure of the tail gas exhausted from the combustion chamber of the engine is low and the flow is small, the auxiliary injection pipes 4 can be adjusted to be close to the expansion section and replaced by injection pipes with large outlet velocity coefficients, as shown in fig. 3;
when the pressure of the tail gas exhausted from the combustion chamber of the engine is high and the flow is large, each auxiliary injection pipe 4 can be adjusted to be far away from the expansion section and close to the expansion section, and the auxiliary injection pipes are replaced by injection pipes with small outlet speed coefficients, as shown in fig. 4.
In some optional embodiments, in the above injection discharging device, each auxiliary injection pipe 4 is provided with a flow regulating valve, so that the injection amount of each auxiliary injection pipe 4 can be regulated according to the pressure and the flow of the exhaust gas discharged from the combustion chamber of the engine.
In some optional embodiments, the above-mentioned injection and discharge device further includes:
the annular supporting tube 5 is sleeved on the convergence section 1 and can axially slide along the convergence section 1; the inlet end of each auxiliary injection pipe 4 is connected to the annular support pipe 5 and communicated with the interior of the annular support pipe 5;
an auxiliary gas supply pipe 6, the outlet end of which is connected to the annular support pipe 5, communicates with the inside of the annular support pipe 5.
To the ejection discharging device disclosed by the embodiment, technical personnel in the field can understand that the inlet end of each auxiliary ejection pipe 4 is connected on the annular supporting pipe 5 and communicated with the inside of the annular supporting pipe 5, on one hand, the convenient realization of the auxiliary air supply pipe 6 can synchronously supply air to each auxiliary ejection pipe 4, on the other hand, the axial sliding of the convergence section 1 is followed by the annular supporting pipe 5, and the synchronous regulation of the distance between each auxiliary ejection pipe 4 and the expansion section 2 is realized, thereby being convenient and rapid.
In some optional embodiments, the above-mentioned injection and discharge device further includes:
and the inlet end of the mixing section 7 is in butt joint with the outlet end of the convergence section 1, and the outlet end of the mixing section is in butt joint with the inlet end of the expansion section 2.
To the injection discharging device disclosed by the above embodiment, as can be understood by those skilled in the art, the tail gas exhausted from the engine combustion chamber is depressurized and accelerated through the convergent section 1, can enter the mixing section 7, is fully mixed with the high-pressure gas introduced through each auxiliary injection pipe 4 and the injection pipe 3 in the mixing section 7, is uniformly mixed and then enters the expansion section 2 for pressurization and deceleration, is discharged to the atmosphere, and can effectively reduce the flow resistance loss in the tail gas flowing process.
In some optional embodiments, the above-mentioned injection and discharge device further includes:
the outlet end of the water spray cooling section 8 is butted with the inlet end of the convergence section 1, and a plurality of water spray cooling holes are formed in the water spray cooling section; the water spray cooling holes are distributed along the circumferential direction of the water spray cooling section 8;
the outlet end of the speed reducing section 9 is butted with the inlet end of the water spray cooling section 8, the inner wall of the speed reducing section gradually expands from the inlet end to the outlet end, and the diffusion angle can be within the range of 10-20 degrees;
the outlet end of the collecting section 10 is in butt joint with the inlet end of the speed reducing section 9, and the inner wall of the collecting section gradually shrinks from the inlet end to the outlet end of the collecting section.
To the injection discharging device disclosed in the above embodiment, those skilled in the art can understand that in the engine combustion chamber test, the inlet end of the collecting section 10 can be set to face the outlet of the engine combustion chamber, and the high-temperature, high-speed and low-pressure tail gas discharged from the engine combustion chamber is collected, and the tail gas flows through the collecting section 10, the deceleration section 9, the water spray cooling section 8, the convergence section 1, the mixing section 7 and the expansion section 2 in sequence and is discharged to the atmosphere.
For the injection discharge device disclosed in the above embodiment, as can be understood by those skilled in the art, the tail gas discharged from the engine combustion chamber can reach supersonic speed, and enters the collection section 10 to reduce the flow rate thereof, and after entering the deceleration section 9, the flow rate can be further reduced to reduce the flow resistance loss, and after entering the water spray cooling section 8, the tail gas can be mixed with the cooling water sprayed through each water spray cooling hole, so that the temperature is reduced, the volume flow is reduced, the pressure is reduced, a low-pressure environment is established, and the tail gas enters the convergent section 1 after being injected by the high-pressure gas introduced into each auxiliary injection pipe 4 and the injection pipe 3, and is then discharged to the atmosphere through the mixing section 7 and the divergent section 2.
In some optional embodiments, in the injection discharging device, a plurality of rows of water spray cooling holes are distributed along the axial direction of the water spray cooling section 8.
In some optional embodiments, in the injection discharge device, the water spray cooling section 8 has an annular water spray cooling cavity inside;
each water spray cooling hole is positioned on the inner wall of the water spray cooling section 8 and is communicated with the annular water spray cooling cavity;
the outer wall of the water spray cooling section 8 is provided with a water spray cooling inlet; the water spray cooling inlet is communicated with the annular water spray cooling cavity.
For the injection discharge device disclosed in the above embodiment, it can be understood by those skilled in the art that cooling water can be supplied to the annular water spray cooling cavity through the water spray cooling inlet, and the cooling water is distributed to each water spray cooling hole by the annular water spray cooling cavity and sprayed into the water spray cooling section 8.
In some optional embodiments, in the injection discharge device, the outer wall of the water spray cooling section 8 is provided with a water spray cooling outlet; the water spray cooling outlet is communicated with the annular water spray cooling cavity.
To the injection discharging device disclosed by the above embodiment, technical personnel in the field can understand that only a small amount of cooling water is sprayed through the water spray cooling holes in the water spray cooling section 8, the water spray cooling outlet communicated with the annular water spray cooling cavity is formed in the outer wall of the water spray cooling section 8, a water spray cooling inlet communicated with the annular water spray cooling cavity can be formed in the outer wall of the water spray cooling section 8, and a large amount of cooling water is introduced into the annular water spray cooling cavity, wherein most of the cooling water introduced into the annular water spray cooling cavity can flow out through the water spray cooling outlet, on one hand, the regulation and control of the amount of cooling water sprayed into the water spray cooling section 8 through the water spray cooling holes can be facilitated, on the other hand, a large amount of cooling water can carry large heat, and the cooling effect on the gas in the water spray cooling section 8 is good.
In some optional embodiments, in the above injection discharging device, the water spray cooling section 8 has a through hole;
the outlet end of the injection pipe 3 penetrates through the through hole and extends into the convergence section 1 from the inlet end of the convergence section 1.
In some optional embodiments, the above-mentioned injection and discharge device further includes:
and each direct jet nozzle 11 is correspondingly arranged in one water spray cooling hole, and the atomizing cone angle can be in the range of 15-30 degrees.
To the injection discharging equipment that above-mentioned embodiment discloses, technical personnel in the field can understand that it is better to penetrate directly the nozzle 11, can directly spray the cooling water that the water spray cooling hole got into to the central part of water spray cooling section 8, spray the central part of tail gas in the water spray cooling section 8 promptly, with tail gas quick, fully mixing, with this quick cooling to the tail gas in the water spray cooling section 8 of realization, need not insert the central part to the water spray cooling section 8 with the nozzle 11 of directly penetrating, can not produce great resistance to the flow of tail gas.
In some alternative embodiments, in the above injection discharging device, each of the direct injection nozzles 11 is inclined toward the outlet end of the water spray cooling section 8, even if the cooling water injected into the water spray cooling section 8 is inclined toward the outlet end of the water spray cooling section 8, the low pressure environment in the water spray cooling section 8 is advantageously established based on the momentum principle.
In some optional embodiments, in the above injection discharging device, the speed reduction section 9 has an annular water cooling cavity inside;
the outer wall of the speed reduction section 9 is provided with a water cooling inlet and a water cooling outlet; the water-cooling inlet and the water-cooling outlet are communicated with the annular water-cooling cavity.
For the injection discharge device disclosed in the above embodiment, as can be understood by those skilled in the art, cooling water may be introduced into the annular water cooling cavity through the water cooling inlet provided on the outer wall of the velocity reduction section 9 to preliminarily cool the exhaust gas discharged from the engine combustion chamber entering the velocity reduction section 9, and the velocity reduction section 9 may be protected from deformation and damage due to heating.
In some alternative embodiments, in the above-mentioned ejector discharging device, the inner wall of the collecting section 10 conforms to a vickers curve, so that the pressure gradient of the exhaust gas from the engine combustion chamber entering the collecting section along the axial direction and the partial velocity along the radial direction are gradually reduced to reduce the flow resistance loss.
In some optional embodiments, in the above-mentioned jet discharging device, the jet pipe 3 and the auxiliary jet pipe 4 are a laval nozzle.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
Having thus described the present application in connection with the preferred embodiments illustrated in the accompanying drawings, it will be understood by those skilled in the art that the scope of the present application is not limited to those specific embodiments, and that equivalent modifications or substitutions of related technical features may be made by those skilled in the art without departing from the principle of the present application, and those modifications or substitutions will fall within the scope of the present application.
Claims (10)
1. The utility model provides an draw and penetrate discharging equipment which characterized in that includes:
the inner wall of the convergent section (1) gradually shrinks from the inlet end to the outlet end of the convergent section, and a plurality of auxiliary injection holes are formed in the convergent section; each auxiliary injection hole is distributed along the circumferential direction of the convergence section (1);
the inlet end of the expanding section (2) is butted with the outlet end of the converging section (1), and the inner wall of the expanding section is gradually expanded from the inlet end to the outlet end of the expanding section;
the outlet end of the injection pipe (3) extends into the convergence section (1) from the inlet end of the convergence section (1) and extends towards the expansion section (2);
the multi-nozzle expansion joint comprises a plurality of auxiliary injection pipes (4), wherein the outlet end of each auxiliary injection pipe (4) is correspondingly free from one injection hole, extends into the interior of the convergence section (1), is in sliding connection with the corresponding injection hole and points to the direction of the expansion section (2).
2. The ejector discharge device of claim 1,
each auxiliary injection pipe (4) is provided with a flow regulating valve.
3. The ejector discharge device of claim 1,
further comprising:
the annular supporting tube (5) is sleeved on the convergence section (1) and can axially slide along the convergence section (1); the inlet end of each auxiliary injection pipe (4) is connected to the annular supporting pipe (5) and communicated with the interior of the annular supporting pipe (5);
and the outlet end of the auxiliary air supply pipe (6) is connected to the annular supporting pipe (5) and communicated with the interior of the annular supporting pipe (5).
4. The ejector discharge device of claim 1,
further comprising:
and the inlet end of the mixing section (7) is in butt joint with the outlet end of the convergence section (1), and the outlet end of the mixing section is in butt joint with the inlet end of the expansion section (2).
5. The ejector discharge device of claim 1,
further comprising:
the outlet end of the water spray cooling section (8) is butted with the inlet end of the convergence section (1), and a plurality of water spray cooling holes are formed in the water spray cooling section; each water spray cooling hole is distributed along the circumferential direction of the water spray cooling section (8);
the outlet end of the speed reducing section (9) is butted with the inlet end of the water spray cooling section (8), and the inner wall of the speed reducing section gradually expands from the inlet end to the outlet end of the speed reducing section;
and the outlet end of the collecting section (10) is butted with the inlet end of the speed reducing section (9), and the inner wall of the collecting section gradually shrinks from the inlet end to the outlet end of the collecting section.
6. The ejector discharge device of claim 5,
an annular water spray cooling cavity is formed in the water spray cooling section (8);
each water spray cooling hole is positioned on the inner wall of the water spray cooling section (8) and communicated with the annular water spray cooling cavity;
the outer wall of the water spray cooling section (8) is provided with a water spray cooling inlet; the water spray cooling inlet is communicated with the annular water spray cooling cavity;
the outer wall of the water spray cooling section (8) is provided with a water spray cooling outlet; the water spray cooling outlet is communicated with the annular water spray cooling cavity.
7. The ejector discharge device of claim 5,
further comprising:
a plurality of direct injection nozzles (11), wherein each direct injection nozzle (11) is correspondingly arranged in one water spray cooling hole.
8. The ejector discharge device of claim 7,
each direct injection nozzle (11) is inclined towards the outlet end direction of the water spray cooling section (8).
9. The ejector discharge device of claim 5,
an annular water cooling cavity is arranged inside the speed reduction section (9);
the outer wall of the speed reduction section (9) is provided with a water cooling inlet and a water cooling outlet; the water-cooling inlet and the water-cooling outlet are communicated with the annular water-cooling cavity.
10. The ejector discharge device of claim 5,
the inner wall of the collecting section (10) follows a Vickers curve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110697513.2A CN113357007B (en) | 2021-06-23 | 2021-06-23 | Injection discharge device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110697513.2A CN113357007B (en) | 2021-06-23 | 2021-06-23 | Injection discharge device |
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| CN113357007A true CN113357007A (en) | 2021-09-07 |
| CN113357007B CN113357007B (en) | 2022-08-19 |
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| Publication number | Publication date |
|---|---|
| CN113357007B (en) | 2022-08-19 |
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