CN217819349U - Integrated annular air intake system - Google Patents
Integrated annular air intake system Download PDFInfo
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- CN217819349U CN217819349U CN202222231087.6U CN202222231087U CN217819349U CN 217819349 U CN217819349 U CN 217819349U CN 202222231087 U CN202222231087 U CN 202222231087U CN 217819349 U CN217819349 U CN 217819349U
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- heating
- bomb
- air inlet
- air
- end cover
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Abstract
The utility model relates to an integrated annular air intake system, include: the heating bomb body, the heating bomb lower end cover, the heating bomb upper end cover, the bomb body sealing gasket, the gas outlet channel, the gas outlet valve seat, the gas inlet valve seat, the gas inlet channel and the hinge bolt are butted with the gas inlet channel, the inside of the gas inlet channel is hollow, the lower end of the gas inlet channel is provided with a gas inlet communicated with the gas inlet channel, and the upper part of the gas inlet channel is provided with a gas outlet along the radial direction; the annular air inlet assembly comprises a welding joint in butt joint with the hinged bolt, an annular air inlet pipe fixedly connected to the welding joint, the hinged bolt penetrates through the welding joint to be communicated with the air inlet channel, the air outlet holes are communicated with the annular air inlet pipe, and air guide holes are uniformly distributed in the annular air inlet pipe at intervals. The utility model discloses it is more even to enable admitting air in the constant volume bullet.
Description
Technical Field
The utility model relates to an internal-combustion engine spray combustion research field especially relates to an integrated annular air intake system.
Background
For example, in the prior art, chinese patent application No. CN 105973852A-fuel jet concentration field distribution testing device and its implementation method, wherein the constant volume bomb is filled with atmosphere gas, and inert gas such as N is generally selected 2 When the external heating system is used for heating in advance, the heating bomb used in the external heating system generally adopts single-hole gas inlet, so that gas is easily distributed unevenly, and the heating is insufficient.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide an integrated annular air inlet system which is simple to manufacture and convenient to install; meanwhile, the problems of single-hole air intake, uneven air intake, flow field interference and the like of the heating capacity bomb can be solved, and the distribution of the gas in the heating capacity bomb can be more uniform.
To solve the above problems, an integrated annular intake system is adopted, comprising:
a heating elastic body, the interior of which is hollow;
the heating bomb lower end cover is butted at the lower end of the heating bomb body;
the heating bomb upper end cover is butted at the upper end of the heating bomb body;
the elastomer sealing gaskets are arranged between the heating bomb body and the heating bomb lower end cover, and between the heating bomb upper end cover and the heating bomb body;
the air outlet is formed on the upper end cover of the heating bomb;
the air outlet channel is communicated with the air outlet and extends into the upper end cover of the heating bomb until the heating bomb body is communicated;
the air outlet valve seat is butted on the air outlet and used for installing an electromagnetic valve to close or open the air outlet;
the air inlet is formed on the peripheral surface of the lower end cover of the heating bomb;
the air inlet valve seat is butted with the air inlet and is used for installing an electromagnetic valve to close or open the air inlet;
the air inlet channel is communicated with the air inlet, extends into the heating bomb lower end cover and extends into the heating bomb body, so that the heating bomb lower end cover is communicated with the heating bomb containing body;
the hinged bolt is butted with the air inlet channel, is hollow inside, is provided with an air inlet at the lower end and communicated with the air inlet channel, and is provided with an air outlet at the upper part along the radial direction;
the annular air inlet assembly comprises a welding joint in butt joint with the hinged bolt and an annular air inlet pipe fixedly connected to the welding joint, the hinged bolt penetrates through the welding joint to be communicated with the air inlet channel, the air outlet holes are communicated with the annular air inlet pipe, and air guide holes are uniformly distributed on the annular air inlet pipe at intervals.
The heating bomb body can be internally provided with a heating wire for heating.
As a further improvement of the integrated annular air inlet system, heat insulation pads are arranged on the inner wall of the heating bomb body, the upper end face of the lower end cover of the heating bomb and the lower end face of the upper end cover of the heating bomb, and the air inlet channel penetrates through the heat insulation pads to be communicated with the annular air inlet assembly.
As a further improvement of the integrated annular air inlet system, sealing gaskets are arranged on the upper side and the lower side of the annular air inlet assembly, and are penetrated and pressed by a hinge bolt.
As a further improvement of the integrated annular air inlet system, the pipeline internal cross-sectional area X of the annular air inlet pipe of the annular air inlet assembly is larger than or equal to the air path cross-sectional area Y of an air inlet channel on the lower heating bullet lower end cover.
As a further improvement of the integrated annular air inlet system, the number of the air guide holes is n, and the radius r of the air guide holes has the value range of
The utility model discloses the integrated level is high, and processing is simple and convenient, need not arrange unnecessary pipeline, and is sealed simple reliable, and arranges relatively in a flexible way. Meanwhile, the annular uniform air inlet has the characteristics of small interference to a flow field and wide application scenes.
Drawings
FIG. 1 is a partial sectional structural schematic diagram of an integrated annular air intake system in an embodiment.
FIG. 2 is a cross-sectional view of an annular intake assembly according to an embodiment of the present invention.
FIG. 3 is a schematic cross-sectional view of an annular inlet fitting.
Fig. 4 is a schematic view of a hinge bolt structure.
Reference numerals: 1. heating the thermal bomb body; 2. an elastomeric gasket; 3. heating the lower end cover; 4. an air inlet; 5. an air inlet valve seat; 6. a hinge bolt; 61. an air inlet; 62. an air outlet; 7. a heat insulating pad; 8. an air intake passage; 9. an annular air intake assembly; 91. welding a joint; 92. an annular air inlet pipe; 93. an air vent; 10. a gasket; 11. a gasket seal.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.
Example 1
As shown in fig. 1-4, an integrated annular intake system comprises:
a heating elastic body 1 which is hollow inside;
the heating bomb lower end cover 3 is butted at the lower end of the heating bomb body 1;
the heating bomb upper end cover is butted at the upper end of the heating bomb body;
the elastomer sealing gaskets 2 are arranged between the heating bomb body 1 and the heating bomb lower end cover 3, and between the heating bomb upper end cover and the heating bomb body 1;
the air outlet is formed on the upper end cover of the heating bomb;
the air outlet channel is communicated with the air outlet and extends into the upper end cover of the heating bomb until the heating bomb body is communicated;
the air outlet valve seat is butted on the air outlet and used for installing an electromagnetic valve to close or open the air outlet;
an air inlet 4 opened on the outer peripheral surface of the lower end cover 3 of the heating bullet;
an intake valve seat 5 that interfaces with the intake port 4, and mounts a solenoid valve to close or open the intake port 4;
the air inlet channel 8 is communicated with the air inlet 4, extends into the heating bomb lower end cover 3 and extends into the heating bomb body 1, so that the heating bomb lower end cover 3 is communicated with the heating bomb containing body 1;
the hinged bolt 6 is butted with the air inlet channel 8, the interior of the hinged bolt is hollow, an air inlet hole 61 is arranged at the lower end of the hinged bolt and communicated with the air inlet channel 8, and an air outlet hole 62 is arranged at the upper part of the hinged bolt along the radial direction;
annular air intake assembly 9, its include with the welded joint 91 of articulated bolt 6 butt joint, the annular intake pipe 92 of rigid coupling at welded joint 91, after articulated bolt 6 passed welded joint 91 switch-on inlet channel 8, venthole 62 and annular intake pipe 92 switch-on, evenly spaced distribution has air guide hole 93 on the annular intake pipe 92.
In this embodiment, the inner wall of the heating bomb body 1, the upper end surface of the heating bomb lower end cover 3 and the lower end surface of the heating bomb upper end cover 10 are both provided with a heat insulation pad 7, and the air inlet channel 8 penetrates through the heat insulation pad 7 to be communicated with the annular air inlet assembly 9.
In this embodiment, the annular air inlet assembly 9 is provided with sealing gaskets 11 on the upper and lower sides, and is penetrated and pressed by the hinge bolt 6.
In this embodiment, the inner cross-sectional area X of the annular inlet duct 92 of the annular inlet assembly 9 is greater than or equal to the cross-sectional area Y of the air passage of the inlet passage 8 of the lower heating elastic lower cover 3.
In this embodiment, if the number of the air holes 93 is n, the radius r of the air holes 93 has a value range of n
Example 2
An integrated annular air inlet system comprises a heating elastic body 1, a heating elastic lower end cover and a heating elastic upper end cover which are fixedly connected with the body through a stud and a nut, wherein an elastic body is sealed through an elastic body sealing gasket 2; the whole internal area of the bomb body is insulated and thermally insulated through the lower end heat insulation pad, the periphery and the upper end heat insulation pad. The bottom of the bomb is held, and the air inlet valve seat 5 is fastened on the bomb body through a bolt and sealed through the end face of the sealing gasket 10. An annular air inlet assembly 9 is fixedly connected to the lower end cover on the lower end heat insulation pad through a hinge bolt 6. Sealing gaskets 11 are arranged on the upper side and the lower side of the hinged bolt and the annular air inlet assembly for sealing.
Specifically, in the air intake system of the present embodiment, when in operation, air in the external air tank is controlled by the air inlet a through the electromagnetic valve connected to the air intake valve seat 5, passes through the air intake channel 8 penetrating through the heating elastic lower end cover, passes through the air inlet hole 61 in the middle of the hinge bolt 6, and then enters the middle cavity of the welding joint 91 (as shown in the cross section of the welding joint in fig. 2) through the air outlet hole 62; then the gas enters the pipeline of the annular gas inlet pipe to flow in an annular mode, and then enters the inside of the containing bomb through the gas inlet hole in the annular gas inlet pipe to be heated and stored.
The air inlet gas circuit of the scheme is partially integrated on the lower end cover, and can be realized by processing two through holes, so that the processing is simple and convenient, redundant pipelines are not required to be arranged, the sealing is simple and reliable, and the arrangement is relatively flexible. In addition, the annular air inlet assembly is formed by welding the annular air inlet pipe and the welding joint, and the processing is simple. The annular air inlet assembly is installed on the lower end cover through the hinged bolts, and compared with an air path arranged on the side face, the scheme can well keep the heat insulation arrangement of the periphery of the bullet body, and the overall heating efficiency is improved. On the other hand, in order to realize annular air intake and ensure uniform flow velocity and pressure, the pipeline internal cross-sectional area X of the annular air intake pipe of the annular air intake assembly is larger than and equal to the air path cross-sectional area Y on the lower end cover, n air guide holes 93 on the further annular air intake pipe are arranged at uniform angles (the value of n is possibly large in order to ensure the uniformity of annular air intake), and the radius of the holes is designed to be n
Due to the design, the gas entering the annular gas inlet pipe can be discharged from the front gas guide holes after entering the gas inlet pipe due to overlarge radius of the gas guide holes, and the annular gas inlet cannot be finished; meanwhile, the air inlet efficiency cannot be reduced due to the fact that the radius of the air guide hole is too small, air inlet time is prolonged, and efficiency is reduced.
Furthermore, because the air guide holes of the annular air inlet pipe are uniformly distributed along the periphery and the radius of the annular air inlet pipe is designed, the air inlet speed of the uniformly distributed air inlet holes can be ensured to be highly consistent, the interference on the flow field of the middle area of the air inlet system is small, and the integrated annular air inlet system can also be applied to other occasions with higher requirements on the central flow field in the projectile body, such as a test constant volume projectile and the like.
The integrated level of this embodiment is high, and processing is simple and convenient, need not arrange unnecessary pipeline, and is sealed simple reliable, and arranges relatively in a flexible way. Meanwhile, the annular uniform air inlet has the characteristics of small interference to a flow field and wide application scenes.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the technical field of the utility model, without departing from the concept of the invention, can also make a plurality of equal substitution or obvious variants, and the performance or the usage is the same, should all be regarded as belonging to the utility model's protection within the scope.
Claims (5)
1. An integrated annular air intake system, comprising:
a heating elastic body (1) which is hollow inside;
the lower end cover (3) of the heating bomb is butted at the lower end of the heating bomb body (1);
the heating bomb upper end cover is butted at the upper end of the heating bomb body;
the elastomer sealing gaskets (2) are arranged between the heating bomb body (1) and the heating bomb lower end cover (3) and between the heating bomb upper end cover and the heating bomb body (1);
the air outlet is formed on the upper end cover of the heating bomb;
the air outlet channel is communicated with the air outlet and extends into the upper end cover of the heating bomb until the heating bomb body is communicated;
the air outlet valve seat is butted on the air outlet and used for installing an electromagnetic valve to close or open the air outlet;
an air inlet (4) which is opened on the outer peripheral surface of the heating bullet lower end cover (3);
an air inlet valve seat (5) which is butted with the air inlet (4) and is used for installing a solenoid valve to close or open the air inlet (4);
the air inlet channel (8) is communicated with the air inlet (4), extends into the heating bomb lower end cover (3) and extends into the heating bomb body (1) to enable the heating bomb lower end cover (3) to be communicated with the heating bomb body (1);
the hinged bolt (6) is butted with the air inlet channel (8), the interior of the hinged bolt is hollow, an air inlet hole (61) is formed in the lower end of the hinged bolt and communicated with the air inlet channel (8), and an air outlet hole (62) is formed in the upper part of the hinged bolt along the radial direction;
annular air intake assembly (9), its include with welded joint (91) of articulated bolt (6) butt joint, rigid coupling are in annular intake pipe (92) of welded joint (91), after articulated bolt (6) passed welded joint (91) switch-on inlet channel (8), venthole (62) and annular intake pipe (92) switch-on, evenly spaced distribution has air guide hole (93) on annular intake pipe (92).
2. The integrated annular air intake system according to claim 1, wherein the inner wall of the heating bomb body (1), the upper end surface of the lower end cover (3) of the heating bomb and the lower end surface of the upper end cover (10) of the heating bomb are provided with heat insulation pads (7), and the air intake channel (8) passes through the heat insulation pads (7) and is communicated with the annular air intake assembly (9).
3. Integrated annular intake system according to claim 1, wherein the annular intake assembly (9) is provided, on the upper and lower sides, with sealing gaskets (11) and is crossed and compressed by the hinge bolts (6).
4. The integrated annular air inlet system according to claim 1, wherein the annular air inlet pipe (92) of the annular air inlet assembly (9) has a pipeline inner cross-sectional area X which is larger than or equal to an air passage cross-sectional area Y of an air inlet channel (8) on the lower heating elastic lower end cover (3).
5. Integrated annular inlet system according to claim 4, characterized in that the number of said air holes (93) is n, the radius r of said air holes (93) is in the range of
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222231087.6U CN217819349U (en) | 2022-08-24 | 2022-08-24 | Integrated annular air intake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222231087.6U CN217819349U (en) | 2022-08-24 | 2022-08-24 | Integrated annular air intake system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217819349U true CN217819349U (en) | 2022-11-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222231087.6U Active CN217819349U (en) | 2022-08-24 | 2022-08-24 | Integrated annular air intake system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217819349U (en) |
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2022
- 2022-08-24 CN CN202222231087.6U patent/CN217819349U/en active Active
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