CN110848494A - Whole water-cooled spray tube - Google Patents
Whole water-cooled spray tube Download PDFInfo
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- CN110848494A CN110848494A CN201911140339.0A CN201911140339A CN110848494A CN 110848494 A CN110848494 A CN 110848494A CN 201911140339 A CN201911140339 A CN 201911140339A CN 110848494 A CN110848494 A CN 110848494A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
- F16L53/70—Cooling of pipes or pipe systems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/02—Wind tunnels
- G01M9/04—Details
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to a whole-course water-cooling spray pipe, which comprises a throat section, an expansion section and a connecting section, wherein the throat section is fixedly connected with one end of the expansion section, the connecting section is fixedly connected with the other end of the expansion section, a plurality of groups of expansion sections with different calibers are mutually connected, pipe orifices in the middle of the inner side of the throat section are reduced, the expansion section and the pipeline in the inner side of the connecting section are in a horn mouth shape, and independent cooling water channels are respectively arranged in the outer walls of the throat section, the expansion section and the connecting section.
Description
Technical Field
The invention relates to the technical field of wind tunnel spray pipe protection, in particular to a spray pipe with whole water cooling.
Background
In the operation process of the spray pipe used on the hypersonic wind tunnel, the total temperature of gas is high and can reach 3100K at most, so that the spray pipe can be heated violently when flowing through the spray pipe, the mechanical structure of the spray pipe is damaged, and in order to avoid ablation and deformation, the spray pipe needs to be cooled by water so as to avoid burning the spray pipe when high-temperature airflow passes through, especially the throat part of the spray pipe. In the design process of the water cooling structure of the spray pipe, the size of the inner molded surface of the spray pipe changes violently, so that the effect of whole-course water cooling is achieved, and the difficulty is very high. The overall structure of the throat part is that the middle part is small, the two ends are large, and in order to achieve a good cooling effect, the inner shell is usually made of a copper alloy material with good heat conduction performance; and in order to increase overall structure intensity, parts such as shell body and flange, cushion usually adopt stainless steel material, and the welding degree of difficulty of different materials is great, generally adopts assembly structure, in the use, because interior casing is heated the cooling repeatedly, the phenomenon that copper contracts often appears, can appear the clearance on the fitting surface to appear leaking, gas leakage phenomenon, high temperature high pressure gas leakage can cause structural damage, leads to the scene to take place danger even. The profile characteristics of expansion section are that the shape is irregular, need process out the cooling water passageway at the inner casing outer wall, and the cost is higher, generally sets up 1 ~ 2 sections and carries out the water-cooling near throat department. The inner shell and the outer shell of the expansion section need to be welded, if the welding stress is not properly treated, the welding stress is easily generated, the precision of the inner profile with higher requirement cannot be ensured, and the flow field quality of the spray pipe cannot be ensured. The last section of the spray pipe is connected with the test section, and in the general design, one part of the section is in the test section, and the other part is outside the test section, so that certain difficulty is brought to the structural design of the cooling water, and the arrangement of the cooling water pipe not only meets the cooling requirement of the spray pipe, but also meets the requirement of being easy to install and adapting to the overall cooling water layout.
Therefore, in response to the above deficiencies, it is desirable to provide a full range water cooled lance.
Disclosure of Invention
Technical problem to be solved
The invention aims to solve the technical problems of poor cooling effect and unstable structural connection of the existing spray pipe.
(II) technical scheme
In order to solve the technical problem, the invention provides a whole-course water-cooling spray pipe which comprises a throat section, an expansion section and a connecting section, wherein the throat section is fixedly connected to one end of the expansion section, the connecting section is fixedly connected to the other end of the expansion section, a plurality of groups of expansion sections with different calibers are mutually connected, a pipe orifice in the middle of the inner side of the throat section is reduced, the expansion section and a pipeline in the inner side of the connecting section are in a bell mouth shape, and independent cooling water channels are respectively arranged in the outer walls of the throat section, the expansion section and the connecting section.
Through adopting above-mentioned technical scheme, can adjust the cooling water pressure of each section according to the heat transfer condition, cool off respectively and do not influence each other at each part of spray tube to make each part of spray tube cool off evenly, avoid making because of the cooling water course overlength and being close to the cooling water temperature of exit higher, lead to the problem that the cooling water is low to the spray tube cooling efficiency who is close to the cooling water course exit end, and realize whole water-cooling, can effectively avoid burning out the spray tube because high-temperature gas flow passes through.
As a further explanation of the present invention, preferably, the throat section includes an outer casing, an inner casing and a pad block, the pad block is fixedly connected to an inner wall of the outer casing, the inner casing is fixedly connected to an inner wall of the pad block, and both the inner casing and the inner wall of the pad block are in an arc-shaped throat pipe shape.
Through adopting above-mentioned technical scheme, fall into three simple parts with whole throat section and process, the production degree of difficulty of greatly reduced abnormal shape throat section, and only need can carry out stable connection through the mode of vacuum diffusion welding at the later stage, and joint strength is high difficult deformation.
As a further explanation of the present invention, preferably, a first water channel is disposed between the outer wall of the inner casing and the inner wall of the pad, two ends of the throat section are respectively and fixedly connected to a throat connecting flange, two ends of the first water channel respectively extend to the outside of the side wall of the throat connecting flange, and a first water pipe joint is screwed on the side wall of the throat connecting flange of the first water channel.
Through adopting above-mentioned technical scheme, set up first water pipe head on throat flange, the external pipeline of being convenient for, and then can make the cooling water flow in the first water course and cool off the throat section.
As a further explanation of the invention, it is preferred that the cross-sectional area of the water flow channels is the same throughout the first flume.
Through adopting above-mentioned technical scheme to guarantee that water pressure everywhere of first water course is the same, avoid causing the damage to the throat section because of water pressure is inhomogeneous.
As a further description of the present invention, preferably, the expansion section includes an outer shell and an inner shell, the inner shell is fixedly connected to an inner wall of the outer shell, a second water channel is disposed between the outer shell and the inner shell, two ends of the expansion section are respectively and fixedly connected to expansion connection flanges, two ends of the second water channel respectively extend out of side walls of the expansion connection flanges, and a second water pipe joint is screwed on a side wall of the second water channel located on the expansion connection flange.
By adopting the technical scheme, the expansion section is simple in structure and convenient to manufacture, and the whole-course water cooling of the expansion section can be realized.
As a further explanation of the invention, the number of the expanding sections is preferably 2-5, the profile slope on the expanding sections is smaller than that of the throat section, and the difference is at most 12 degrees.
By adopting the technical scheme, the whole water-cooling spray pipe can be accelerated to the speed required by the test, and a high-speed and stable flow field is formed in the wind tunnel test section.
As a further description of the present invention, preferably, a plurality of annular water channel ribs are fixedly connected to the outer side of the housing barrel at intervals, bottom ends of the water channel ribs are embedded into the outer housing barrel, and top ends of the water channel ribs extend out of the outer housing barrel.
By adopting the technical scheme, the structural strength of the shell cylinder can be improved, and the shell cylinder is not easy to deform when being impacted by airflow.
As a further explanation of the present invention, preferably, the connection section includes an outer casing pipe and an inner casing pipe, the inner casing pipe is fixedly connected to an inner wall of the outer casing pipe, a third water channel is provided between the inner wall of the outer casing pipe and an outer wall of the inner casing pipe, one end of the connection section connected to the expansion section is fixedly connected to a test connection flange, one end of the third water channel extends to the outside of a side wall of the test connection flange, the outer casing pipe outside the other end of the third water channel is fixedly connected to an outer water pipe, and the third water channel is communicated with the outer water.
Through adopting above-mentioned technical scheme, can guarantee to carry out the water-cooling to the linkage segment, can guarantee again to the water-cooling pipeline of linkage segment not to produce with the experimental equipment on the experimental flange and interfere.
As a further explanation of the present invention, it is preferable that the outer casing is fixedly connected with a test section connecting flange, an inner wall of the test section connecting flange penetrates through the outer casing and abuts against an outer wall of the inner casing, two sides of a bottom of the test section connecting flange are fixedly connected with arc pipes, and the arc pipes respectively extend into the outer casing and are communicated with the third water channels, so that the third water channels on two sides of the test section connecting flange are communicated.
Through adopting above-mentioned technical scheme, can guarantee test section flange's installation stable, can guarantee again that the cooling water in the third water course can flow the outer water pipe, and the mode that adopts the plus pipeline is more convenient than directly carrying out after test section flange drilling with the third water course hole site alignment installation, and the arc pipe exposes the experimenter of being convenient for observe the regulation in order to realize the hole site and aim at.
As a further explanation of the invention, the distances between the water channels of the throat section, the expansion section and the connecting section and the inner cavity are preferably 2-10 mm.
By adopting the technical scheme, the throat section, the expansion section and the connecting section are ensured to have good cooling effect.
(III) advantageous effects
The technical scheme of the invention has the following advantages:
the water cooling structure of the spray pipe is processed in sections, so that the spray pipe can be well cooled when high-temperature and high-pressure gas is introduced into the spray pipe, the spray pipe cannot be burnt and deformed, and the processing difficulty and the processing cost are reduced; welding the parts by vacuum diffusion welding and plug welding, and controlling the parts not to deform after processing by stress relief treatment; and a positioning opening and a sealing structure are adopted to ensure that the connection of all the sections can meet the positioning requirement and the sealing requirement.
Drawings
FIG. 1 is a cross-sectional view of the final assembly of the present invention;
FIG. 2 is a cross-sectional view showing a connection structure between parts of the present invention;
FIG. 3 is a sectional view of a throat section of the present invention;
FIG. 4 is a cross-sectional view of the dilating segment of the present invention;
fig. 5 is a cross-sectional view of a connecting segment of the present invention.
In the figure: 1. a throat section; 11. an outer housing; 12. an inner housing; 13. cushion blocks; 14. a first water channel; 15. a throat connecting flange; 16. a first water pipe joint; 2. an expansion section; 21. a housing tube; 22. an inner shell; 23. a second water channel; 24. expanding the connecting flange; 25. a second water pipe joint; 26. water channel ribs; 3. a connecting section; 31. a housing tube; 32. an inner shell tube; 33. a third water channel; 34. testing the connecting flange; 35. a third water pipe joint; 36. a shell rib; 37. an outer water pipe; 38. an arc tube; 4. a seal ring; 5. a connecting bolt; 6. the test section is connected with a flange; 7. and (5) installing a flange on the test instrument.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
A whole-course water-cooling spray pipe is shown in figure 1 and comprises a throat section 1, an expansion section 2 and a connecting section 3, wherein the throat section 1 is fixedly connected to one end of the expansion section 2, the connecting section 3 is fixedly connected to the other end of the expansion section 2, the inner wall surface of the spray pipe is of an irregular molded line, the irregular molded line is calculated according to the aerodynamic characteristic requirement of the spray pipe, and the irregular molded line is given by discrete data points.
With reference to fig. 1 and 3, the throat section 1 comprises an outer shell 11, an inner shell 12 and a cushion block 13, the cushion block 13 is fixedly connected to the inner wall of the outer shell 11 by a vacuum diffusion welding method, the inner shell 12 is fixedly connected to the inner wall of the cushion block 13 by a vacuum diffusion welding method, the inner walls of the inner shell 12 and the cushion block 13 are both arc-shaped necking pipe-shaped, that is, the hole diameters of two ends are thick, the hole diameter of the middle is thin, the size of the inlet of the throat section 1 is determined according to the air flow velocity, generally required to be 4-20 m/s, the size of the throat part (necking) is determined according to the Mach number of a flow field of the nozzle and the diameter of the; a first water channel 14 is arranged between the outer wall of the inner shell 11 and the inner wall of the cushion block 13, the number of the first water channels 14 is determined according to the actual cooling water flow demand, and the cross-sectional areas of water channels at all positions of the first water channel 14 are the same, so that the same water pressure at all positions of the first water channel 14 is ensured, and the throat section 1 is prevented from being damaged due to uneven water pressure; the two ends of the throat section 1 are fixedly connected with throat connecting flanges 15 through welding respectively, the two ends of a first water channel 14 extend to the side walls of the throat connecting flanges 15 respectively, the first water channel 14 is positioned on the side walls of the throat connecting flanges 15 and is in threaded connection with a first water pipe connector 16, the first water pipe connector 16 can be connected with a cooling water pipe, the first water pipe connector 16 is arranged on the throat connecting flanges 15, an external pipeline is convenient to connect, and cooling water can flow into the first water channel 14 to cool the throat section 1.
Combine fig. 1, fig. 4, 2 inboard pipelines in expansion section are the horn mouth form, expansion section 2 includes a shell section of thick bamboo 21 and an inner shell section of thick bamboo 22, inner shell section of thick bamboo 22 links firmly on a shell section of thick bamboo 21 inner wall through vacuum diffusion welding, be equipped with second water course 23 between a shell section of thick bamboo 21 and the inner shell section of thick bamboo 22, 2 both ends in expansion section have linked firmly expansion flange 24 through the welding respectively, 23 both ends in second water course extend to outside expansion flange 24 lateral wall respectively, second water course 23 is located threaded connection has second water pipe head 25 on expansion flange 24's the lateral wall, through carrying out the segmentation production concatenation manufacturing with expansion section 2, not only make expansion section 2 simple structure, and convenient for manufacture can also realize the whole water-cooling to expansion section 2.
With reference to fig. 1 and 4, the expansion sections 2 are distributed in a plurality of groups in series, the number of the expansion sections 2 is determined according to the length, the diameter and the processing capacity of the molded lines, generally 2-5 sections, the molded line slope on the expansion section 2 is smaller than that of the throat section 1, the difference value is 12 degrees at most, the whole water-cooling spray pipe can be accelerated to the speed required by the test, and a high-speed and stable flow field is formed in the wind tunnel test section; the outer interval of a shell section of thick bamboo 21 has linked firmly a plurality of annular water course rib 26 through the welding, water course rib 26 bottom embedding shell section of thick bamboo 21, water course rib 26 top is stretched out outside shell section of thick bamboo 21, do not have too big change in order to ensure the circulation cross-section of high-pressure cooling water, the quantity of water course rib 26, height, the width need be adjusted according to the molded lines, if the profile size diminishes, water course rib 26 reduces in quantity, the width narrows down, high increase, can improve shell section of thick bamboo 21's structural strength, make it non-deformable when receiving the air current impact.
With reference to fig. 1 and 5, the inner side pipeline of the connecting section 3 is in a bell mouth shape, the connecting section 3 includes an outer shell pipe 31 and an inner shell pipe 32, the inner shell pipe 32 is fixedly welded on the inner wall of the outer shell pipe 31 through vacuum diffusion, a third water channel 33 is arranged between the inner wall of the outer shell pipe 31 and the outer wall of the inner shell pipe 32, one end of the connecting section 3 connected with the expansion section 2 is fixedly connected with a test connecting flange 34, one end of the third water channel 33 extends out of the side wall of the test connecting flange 34, an outer water pipe 37 is fixedly connected on the outer shell pipe 31 outside the other end of the third water channel 33, and the third water channel 33 is communicated with the; the outer interval of shell pipe 31 has linked firmly a plurality of groups of shell rib 36, 36 bottom embedding shell pipes 31 of shell rib, the 36 top of shell rib stretches out outside shell pipe 31, the circulation cross-section of cooling water for ensureing high pressure does not have too big change, the quantity of shell rib 36, and is high, the width need be adjusted according to the molded lines, if the molded lines size diminishes, 36 quantity reductions of shell rib, the width narrows down, highly increased, can improve shell pipe 31's structural strength, make it non-deformable when receiving the air current and strike.
With reference to fig. 1 and 5, a test section connecting flange 6 is fixedly connected to the outer shell pipe 31, the inner wall of the test section connecting flange 6 penetrates through the outer shell pipe 31 and abuts against the outer wall of the inner shell pipe 32, arc pipes 38 are fixedly connected to two sides of the bottom of the test section connecting flange 6, the arc pipes 38 respectively extend into the outer shell pipe 31 and are communicated with a third water channel 33, so that the third water channels 33 on two sides of the test section connecting flange 6 are communicated, and an outer water pipe 37 penetrates through the test section connecting flange 6; one end of the connecting section 3, which is far away from the test connecting flange 34, is fixedly connected with a test instrument mounting flange 7, and devices such as a diffuser and the like can be mounted on the test instrument mounting flange 7; the part of the nozzle extending into the connecting section 3 is matched with the parts of the angle of attack mechanism, the diffuser and the like in the connecting section 3 and cannot interfere with other parts in the connecting section 3.
With reference to fig. 1 and 5, the size of the interface on the test section connecting flange 6 is matched with the size of the test connecting flange 34, and a plurality of sets of nozzles are arranged in a common wind tunnel, and the test section connecting flanges 6 of all the nozzles are consistent; the test section connecting flange 6 extends into the third water channel 33 and the arc-shaped pipe 38 is arranged, so that the test section connecting flange 6 can be stably installed, cooling water in the third water channel 33 can flow to the outer water pipe 37, the mode of adopting an additional pipeline is more convenient than the mode of directly carrying out hole position alignment installation on the test section connecting flange 6 and the third water channel 33 after drilling, and the arc-shaped pipe 38 is exposed, so that an experimenter can observe and adjust to realize hole position alignment; the outer water pipe 37 is arranged to ensure that the connecting section 3 is water-cooled and ensure that the water-cooled pipeline of the connecting section 3 does not interfere with the test equipment on the test section connecting flange 6.
With reference to fig. 1 and 2, the throat section 1 and the expansion section 2 are connected with each other by abutting the throat connecting flange 15 and the expansion connecting flange 24, wherein the abutting surfaces of the throat connecting flange 15 and the expansion connecting flange 24 are inserted with the sealing rings 4 to prevent gas from flowing out from the gap between the throat connecting flange 15 and the expansion connecting flange 24, the throat connecting flange 15 and the expansion connecting flange 24 are inserted with a plurality of groups of connecting bolts 5 at intervals to play a role of fixing positions, and finally the throat section 1 and the expansion section 2 can be stably connected by welding; the expansion section 2 is connected with the connecting section 3 through expansion connecting flange 24 and test connecting flange 34 butt, wherein the sealing ring 4 is inserted in the butt surface of the expansion connecting flange 24 and the test connecting flange 34 to avoid gas flowing out from the gap between the expansion connecting flange 24 and the test connecting flange 34, a plurality of groups of connecting bolts 5 are inserted outside the expansion connecting flange 24 and the test connecting flange 34 at intervals to play a role in fixing positions, and finally the expansion section 2 and the connecting section 3 can be stably connected in a welding mode.
With reference to fig. 4 and 5, in order to ensure good cooling effect of the throat section 1, the expansion section 2 and the connecting section 3, the wall thickness of the wall surface of the inner shell is generally 2-10 mm; the height of the water channel ribs 26 on the expansion section 2 and the height of the shell ribs 36 on the connecting section 3 are generally 3-5 mm, and the width is generally 15-20 mm. When the diameter of the expansion section 2 is larger, in order to ensure uniform flow of cooling water, cooling water channels need to be designed in groups, and the cooling water channels are generally divided into a group of water channels in the circumferential direction of 300-400 mm; a large amount of welding is carried out on the cooling structures of the expansion section 2 and the connecting section 3 in the machining process, welding stress can remain after the machining of the inner molded surface is finished, and the machining precision of the molded surface is influenced, so that after the welding is finished, the stable stress removal treatment is required; in order to achieve better finishing effect, stress relieving low-temperature heat treatment is carried out before finishing.
The working process of the invention is as follows:
when the whole water-cooling spray pipe works, the whole water-cooling spray pipe needs to be installed on a wind tunnel firstly, the throat section 1 is connected with the stable section, the connecting section 3 is connected with the test section, and then cooling water is introduced; the test gas is heated in the heater to the anti-condensation temperature required by the test, and is accelerated to the speed required by the test through the whole water-cooling spray pipe, so that a high-speed and stable flow field is formed in the wind tunnel test section; the diameter of the nozzle throat section 1 is minimum, the flow cross section area is minimum, and the heat flow is maximum, so that the inner shell 12 of the nozzle throat section 1 is processed by copper alloy with high heat conductivity, and high cooling water pressure is adopted, generally reaching 2-4 MPa, forced water cooling is carried out, the cooling effect is improved, and in order to avoid water scale in cooling water from blocking a water cooling channel, the cooling water needs softened water; the heat flow of the expansion section 2 is relatively low, but due to the existence of the boundary layer, the flow temperature recovery condition exists in the part close to the wall surface of the spray pipe, the temperature is also high, cooling water needs to be introduced for ensuring the normal work of the cooling structure, the pressure of the cooling water is generally 0.5-1 MPa, and a pressure gauge and a flow meter need to be installed at the proper position of the cooling channel to monitor the running condition of the cooling water of the spray pipe in real time; the cooling water continuously flows to work in the test process, the spray pipe is filled with the cooling water before the test, the test process cannot be interrupted, the cooling water is continuously filled for 1-2 minutes after the test, and the water is stopped after the temperature of the whole spray pipe is reduced to below 500K.
In conclusion, the whole throat section is divided into three simple parts to be processed, the production difficulty of the special-shaped throat section is greatly reduced, the stable connection can be realized only by a vacuum diffusion welding mode in the later period, the connection strength is high, the deformation is not easy, the cooling water pressure of each part can be adjusted according to the heat exchange condition, each part of the spray pipe is respectively cooled and does not influence each other, so that each part of the spray pipe is uniformly cooled, the problem that the cooling water close to an outlet is high in temperature due to the fact that the cooling water is too long, the cooling efficiency of the spray pipe close to the outlet end of the cooling water channel is low due to the fact that the cooling water is low is solved, the whole-course water cooling is realized, and the spray.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a whole water-cooled spray tube which characterized in that: including throat section (1), expansion section (2) and linkage segment (3), throat section (1) links firmly in expansion section (2) one end, linkage segment (3) link firmly in expansion section (2) other end, the expansion section (2) interconnect of the different bores of a plurality of groups, the mouth of pipe at the inboard middle part of throat section (1) reduces, expansion section (2) are the horn mouth form with linkage segment (3) inboard pipeline, be equipped with independent cooling water course in throat section (1), expansion section (2) and linkage segment (3) outer wall respectively.
2. The full range water cooled lance defined in claim 1 wherein: the throat section (1) comprises an outer shell (11), an inner shell (12) and a cushion block (13), the cushion block (13) is fixedly connected to the inner wall of the outer shell (11), the inner shell (12) is fixedly connected to the inner wall of the cushion block (13), and the inner wall of the inner shell (12) and the inner wall of the cushion block (13) are both in an arc-shaped necking pipe shape.
3. The full range water cooled lance defined in claim 2 wherein: a first water channel (14) is arranged between the outer wall of the inner shell (12) and the inner wall of the cushion block (13), two ends of the throat section (1) are fixedly connected with throat connecting flanges (15) respectively, two ends of the first water channel (14) extend to the side walls of the throat connecting flanges (15) respectively, and the first water channel (14) is located on the side walls of the throat connecting flanges (15) and is in threaded connection with a first water pipe connector (16).
4. The full range water cooled lance defined in claim 3 wherein: the cross-sectional areas of the water flow channels at all positions of the first water channel (14) are the same.
5. The full range water cooled lance defined in claim 1 wherein: the expansion section (2) comprises an outer shell barrel (21) and an inner shell barrel (22), the inner shell barrel (22) is fixedly connected to the inner wall of the outer shell barrel (21), a second water channel (23) is arranged between the outer shell barrel (21) and the inner shell barrel (22), two ends of the expansion section (2) are fixedly connected with expansion connecting flanges (24) respectively, two ends of the second water channel (23) extend to the side walls of the expansion connecting flanges (24) respectively, and the second water channel (23) is located on the side walls of the expansion connecting flanges (24) and is connected with second water pipe connectors (25) in a threaded mode.
6. The full range water cooled lance defined in claim 5 wherein: the number of the expansion sections (2) is 2-5, the molded line slope on the expansion sections (2) is smaller than that of the throat section (1), and the difference value is 12 degrees at most.
7. The full range water cooled lance defined in claim 5 wherein: a plurality of annular water channel ribs (26) are fixedly connected outside the shell barrel (21) at intervals, the bottom ends of the water channel ribs (26) are embedded into the shell barrel (21), and the top ends of the water channel ribs (26) extend out of the shell barrel (22).
8. The full range water cooled lance defined in claim 1 wherein: connecting block (3) are including shell pipe (31) and interior shell pipe (32), interior shell pipe (31) link firmly on shell pipe (31) inner wall, be equipped with third water course (33) between shell pipe (31) inner wall and interior shell pipe (32) outer wall, the one end that connecting block (3) and expansion section (2) meet has linked firmly experimental flange (34), third water course (33) one end extends to outside experimental flange (34) lateral wall, outer shell pipe (31) of third water course (33) other end have linked firmly outer water pipe (37), third water course (33) communicate with each other with outer water pipe (37).
9. The full range water cooled lance defined in claim 8 wherein: outer shell pipe (31) have linked firmly test section flange (6) outward, test section flange (6) inner wall run through outer shell pipe (31) and with inner shell pipe (32) outer wall butt, test section flange (6) bottom both sides have linked firmly arc pipe (38), arc pipe (38) stretch into respectively in outer shell pipe (31) and communicate with each other with third water course (33) to make the third water course (33) of test section flange (6) both sides communicate with each other.
10. The full range water cooled lance defined in claim 1 wherein:
the distances between the water channels of the throat section (1), the expansion section (2) and the connecting section (3) and the inner cavity are all 2-10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911140339.0A CN110848494B (en) | 2019-11-20 | 2019-11-20 | Whole water-cooled spray tube |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911140339.0A CN110848494B (en) | 2019-11-20 | 2019-11-20 | Whole water-cooled spray tube |
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| CN110848494A true CN110848494A (en) | 2020-02-28 |
| CN110848494B CN110848494B (en) | 2020-06-09 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112945507A (en) * | 2021-02-03 | 2021-06-11 | 中国空气动力研究与发展中心高速空气动力研究所 | Hypersonic wind tunnel axisymmetric spray pipe |
| CN114252230A (en) * | 2022-03-02 | 2022-03-29 | 中国空气动力研究与发展中心超高速空气动力研究所 | Distribution device for cooling water of high-Mach-number spray pipe of conventional hypersonic wind tunnel |
| CN115266013A (en) * | 2022-09-23 | 2022-11-01 | 中国空气动力研究与发展中心超高速空气动力研究所 | Lining cylinder for high-flow high-temperature high-pressure high-speed gas environment and mounting method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115027A (en) * | 2013-02-05 | 2013-05-22 | 中国人民解放军国防科学技术大学 | Supersonic velocity circular flow nozzle with injector |
| CN206448883U (en) * | 2016-12-29 | 2017-08-29 | 中国航天空气动力技术研究院 | A kind of split type high temperature ladle cover jet pipe |
| CN108263638A (en) * | 2017-12-22 | 2018-07-10 | 中国航天空气动力技术研究院 | A kind of high temperature low consumption abnormity jet pipe |
| CN109163876A (en) * | 2018-09-20 | 2019-01-08 | 中国空气动力研究与发展中心超高速空气动力研究所 | A kind of water-cooled supersonic nozzle |
| CN109695783A (en) * | 2018-12-17 | 2019-04-30 | 北京动力机械研究所 | A kind of nozzle throat section with ring stiffener |
| CN109884243A (en) * | 2018-12-21 | 2019-06-14 | 西安航天动力研究所 | A kind of big hot-fluid supersonic jet jet pipe of band active cooling |
-
2019
- 2019-11-20 CN CN201911140339.0A patent/CN110848494B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115027A (en) * | 2013-02-05 | 2013-05-22 | 中国人民解放军国防科学技术大学 | Supersonic velocity circular flow nozzle with injector |
| CN206448883U (en) * | 2016-12-29 | 2017-08-29 | 中国航天空气动力技术研究院 | A kind of split type high temperature ladle cover jet pipe |
| CN108263638A (en) * | 2017-12-22 | 2018-07-10 | 中国航天空气动力技术研究院 | A kind of high temperature low consumption abnormity jet pipe |
| CN109163876A (en) * | 2018-09-20 | 2019-01-08 | 中国空气动力研究与发展中心超高速空气动力研究所 | A kind of water-cooled supersonic nozzle |
| CN109695783A (en) * | 2018-12-17 | 2019-04-30 | 北京动力机械研究所 | A kind of nozzle throat section with ring stiffener |
| CN109884243A (en) * | 2018-12-21 | 2019-06-14 | 西安航天动力研究所 | A kind of big hot-fluid supersonic jet jet pipe of band active cooling |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112945507A (en) * | 2021-02-03 | 2021-06-11 | 中国空气动力研究与发展中心高速空气动力研究所 | Hypersonic wind tunnel axisymmetric spray pipe |
| CN114252230A (en) * | 2022-03-02 | 2022-03-29 | 中国空气动力研究与发展中心超高速空气动力研究所 | Distribution device for cooling water of high-Mach-number spray pipe of conventional hypersonic wind tunnel |
| CN115266013A (en) * | 2022-09-23 | 2022-11-01 | 中国空气动力研究与发展中心超高速空气动力研究所 | Lining cylinder for high-flow high-temperature high-pressure high-speed gas environment and mounting method |
| CN115266013B (en) * | 2022-09-23 | 2022-12-02 | 中国空气动力研究与发展中心超高速空气动力研究所 | Lining cylinder for high-flow high-temperature high-pressure high-speed gas environment and mounting method |
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