CN113606060B - Movable fuel gas flow guide device and using method thereof - Google Patents
Movable fuel gas flow guide device and using method thereof Download PDFInfo
- Publication number
- CN113606060B CN113606060B CN202110813038.0A CN202110813038A CN113606060B CN 113606060 B CN113606060 B CN 113606060B CN 202110813038 A CN202110813038 A CN 202110813038A CN 113606060 B CN113606060 B CN 113606060B
- Authority
- CN
- China
- Prior art keywords
- gas
- cooling water
- panel
- plate
- side plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/96—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof characterised by specially adapted arrangements for testing or measuring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/42—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using liquid or gaseous propellants
- F02K9/44—Feeding propellants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/42—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using liquid or gaseous propellants
- F02K9/60—Constructional parts; Details not otherwise provided for
Abstract
The invention relates to a gas guiding device, in particular to a movable gas guiding device and a using method thereof, and aims to solve the technical problems that the conventional gas guiding device is only suitable for the condition of short gas impact time, cannot be moved, cannot adjust the angle, cannot be flexibly combined for use and is not suitable for a ground test of an aerospace engine assembly. The device comprises a gas guide plate, a moving vehicle, at least two adjustable long support rods, a plurality of adjustable short support rods and a plurality of mounting seats, wherein the gas guide plate is mounted on the moving vehicle, so that the purpose of adjusting the gas impact angle is achieved; the movable vehicles of the plurality of movable fuel gas flow guide devices can be connected with one another, and the fuel gas flow guide plates can be flexibly spliced for use; the movable trolley is connected with the mounting seat through the adjustable short supporting rod, and the movable trolley is convenient to move and transport. The method is carried out by utilizing the device, and different working modes can be adopted to effectively guide the fuel gas.
Description
Technical Field
The invention relates to a fuel gas flow guide device, in particular to a movable fuel gas flow guide device and a using method thereof.
Background
The gas guiding device is used for a test bed and a rocket launching platform of a ground test of an aerospace engine. When the rocket engine is ignited, the high-temperature and high-speed fuel gas generated by the rocket engine is guided by the fuel gas guiding device to be far away from the direction of a test bed station or a rocket launching platform, so that the safety of the station, the platform body equipment and the measurement and control equipment is protected. In the article "rocket diversion trench made of high-temperature special cement" of No. 10 of volume 528 of scientific News, a gas diversion device (also called diversion trench) for a rocket launching pad is introduced, which is formed by pouring low-ablation-rate refractory concrete. Because the time that rocket launching process flame strikes in gas guiding device is shorter (<10s), adopt the gas guiding device of low ablation rate refractory concrete pouring, can satisfy gas water conservancy diversion requirement, so the gas guiding device that present rocket launching pad used is mostly formed by low ablation rate refractory concrete pouring, and the ablation rate is 0.06 ~ 0.09mm/s, in order to prevent that high-speed gas from carrying out direct impact to the concrete, the partial position of gas guiding device still need install the protection steel sheet additional to spray water cooling to the surface.
The aerospace engine assembly refers to a combination of devices such as a gas generator and a thrust chamber of an aerospace engine. The high-speed high-temperature gas can be sprayed out when the aerospace engine assembly is tested (the speed is less than 2 Mach, the total temperature is less than 2000K), the test duration is usually about 100s, so the gas guiding device can bear long-time high-temperature high-speed gas impact, in order to meet the test requirements of different aerospace engine assemblies, the gas guiding device needs to be capable of adjusting the distance between the gas guiding device and a gas spraying pipe of the aerospace engine assembly and the gas impact angle, and the guide profile of the gas guiding device needs to be changed to adapt to the gas guiding requirements of different tests.
In the Chinese patent of invention with the publication number of CN105971769B, namely 'small solid rocket engine vertical trial run gas deflector', a gas deflector used in the vertical trial run process of the small solid rocket engine is disclosed, which mainly comprises a deflector and a bracket, wherein the bracket is formed by assembling and welding steel plates positioned at the outer side of the deflector, a steel wire reinforcing net is welded in the bracket, the deflector is formed by pouring high-temperature-resistant cement in the bracket, a water spray cooling mode is not adopted, the structure is simple, and the gas deflector is suitable for the gas deflector task of the small solid rocket engine.
In the chinese invention patent CN106123032B, "a deflector device for high-temperature fuel gas", a fuel gas deflector structure based on the boiling phase change heat absorption principle is disclosed, which is mainly suitable for guiding the fuel gas of aircraft engines on aircraft carriers. The device improves the heat exchange capacity of the guide plate through atomization phase change, can quickly reduce the temperature of the guide plate, and meets the requirements that the aircraft on the aircraft carrier has short take-off time and needs take-off for many times.
However, the three gas flow guiding devices mentioned above are only suitable for the situation of short gas impact time, are not movable, cannot adjust the angle, cannot be flexibly combined for use, and are not suitable for the ground test of the aerospace engine assembly.
Disclosure of Invention
The invention aims to solve the technical problems that the existing gas flow guiding device is only suitable for the condition of short gas impact time, is not movable, can not adjust the angle, can not be flexibly combined for use and is not suitable for the ground test of an aerospace engine assembly, and provides a movable gas flow guiding device and a using method thereof.
In order to solve the technical problems, the technical solution provided by the invention is as follows:
a movable fuel gas flow guiding device is characterized in that: the gas guide plate is arranged on the gas guide plate and comprises a gas guide plate, a moving vehicle, at least two adjustable long support rods, a plurality of adjustable short support rods and a plurality of mounting seats;
the gas guide plate is a box body which is enclosed by a panel, a bottom plate and four side plates; n parallel clapboards are arranged in the box body, the area in the box body is divided into N +1 independent channels, and each clapboard is provided with a limber hole; n is more than or equal to 1;
one side of the bottom plate is hinged with the movable vehicle to serve as a supporting end a, the part, close to the other side, of the bottom plate is connected with the movable vehicle through the adjustable long supporting rod to serve as a lifting end b, and the two ends of the adjustable long supporting rod are hinged with the bottom plate and the movable vehicle, so that the hinged position of the supporting end a of the gas guide plate can serve as a rotation center, and the included angle between the gas guide plate and the movable vehicle is changed;
the four side plates comprise a first side plate, a second side plate, a third side plate and a fourth side plate which are connected in sequence; the first side plate is close to the supporting end a, and the third side plate is close to the lifting end b; the first side plate and the third side plate are respectively provided with a cooling water inlet and a cooling water outlet which are respectively close to the second side plate and the fourth side plate;
the at least two adjustable long supporting rods are arranged on the bottom plate side by side along a direction vertical to the second side plate and the fourth side plate;
inclined hole type water spraying holes are uniformly formed in the panel, outlets of the water spraying holes incline to the lifting end b, and an included angle between the axis of each water spraying hole and the panel is 15-40 degrees;
a plurality of lateral fixing lug seats are arranged on four side walls of the moving vehicle;
the plurality of adjustable short supporting rods correspond to the plurality of mounting seats one by one; one end of the adjustable short supporting rod is connected with the mounting seat through a connecting piece, and the other end of the adjustable short supporting rod is connected with the lateral fixing lug seats on the side wall of the moving vehicle close to the first side plate and the third side plate through the connecting piece.
Furthermore, the adjustable long supporting rod comprises a sleeve, two round nuts, two screw rods and two locking nuts;
the middle part of the outer wall of the sleeve is provided with a rotating block;
the inner walls of the two round nuts are respectively provided with internal threads with opposite turning directions, and the outer walls of the two round nuts are respectively fixedly connected to two ends of the sleeve;
the two screw rods are respectively provided with external threads matched with the internal threads of the two round nuts, one ends of the two screw rods are fixedly connected with the lug seats of the support rods for hinging, and the other ends of the two screw rods extend into the sleeve through the round nuts;
the locking nut is arranged on the outer side of the round nut and is in threaded connection with the screw rod.
Furthermore, the adjustable short supporting rod and the adjustable long supporting rod are the same in structure, and the length of the sleeve and the length of the screw are shorter than that of the sleeve and the length of the screw of the adjustable long supporting rod.
Further, the quantity of baffle is 3, divides into 4 passages that volume is equal in the gas guide plate.
Furthermore, the number of the water through holes on each partition plate is 3, and the hole diameter is 50 mm.
Further, the included angle between the axis of the water spraying hole and the panel is 30 degrees.
Furthermore, in order to facilitate installation of other parts or hoisting of the gas guide plate, a section of panel is respectively extended from the intersection of the panel and the first side plate and the third side plate, and a plurality of support plates are arranged between the lower surface of the extended panel and the outer wall of the corresponding side plate.
Further, the connecting piece comprises a bolt, a nut and a gasket.
Further, the rotating block is an outer hexagonal rotating block.
Meanwhile, the invention also provides a use method of the movable fuel gas flow guide device, which is characterized in that: the movable gas flow guiding device comprises the following steps:
1) determining the distance between the panel of the gas guide plate and the gas spraying source according to the test requirement, and further determining the test position of the gas guide plate;
2) determining the number of the required movable gas diversion devices according to the test requirements;
if the number of the required movable gas flow guide devices is one, the movable gas flow guide devices are moved to the determined test position, then the two ends of the adjustable short support rods are respectively connected with the mounting seats and the corresponding lateral fixing lug seats of the moving vehicle through the connecting pieces, all the adjustable short support rods are adjusted to be proper in length, and all the mounting seats are fixed on the base of the test position;
if a plurality of required movable gas flow guide devices are arranged, the plurality of movable gas flow guide devices are moved to a determined test position, all the movable gas flow guide devices are arranged side by side, the moving vehicles of two adjacent movable gas flow guide devices are connected with the lateral fixed lug seats respectively close to the side walls of the second side plate and the fourth side plate through connecting pieces, then the two ends of the adjustable short supporting rods are respectively connected with the mounting seat and the corresponding lateral fixed lug seats of the moving vehicles through the connecting pieces, all the adjustable short supporting rods are adjusted to be proper in length, and all the mounting seats are fixed on a base of the test position;
3) determining the inclination angle of the gas guide plate according to the test requirement, and rotating the gas guide plate to the determined inclination angle by adjusting the length of the adjustable long supporting rod;
4) according to the speed and temperature parameters of gas impact, selecting a proper working mode for the movable gas flow guiding device:
working mode one
When the gas speed parameter Mach number is more than 0.8 and less than Ma and less than 1.5 and the gas temperature parameter is more than 1000K and less than TGas combustionWhen the temperature is less than 2000K, the cooling water outlet is blocked, and then cooling water with the pressure of 0.6-1 MPa is introduced into the cooling water inlet; when the gas impacts, the introduced cooling water is sprayed out of the water spraying holes of the panel and is vaporized, so that the panel is cooled;
working mode two
When the gas speed parameter Mach number is more than 0.5 and less than Ma and less than 1, and the gas temperature parameter is more than 800K and less than TGas combustionWhen the temperature is less than 1500K, opening a cooling water outlet, and introducing cooling water with the pressure of 0.8-1 MPa into a cooling water inlet; when gas is impacted, most of the introduced cooling water is discharged from the cooling water outlet, and a small part of the cooling water is sprayed and vaporized from the water spraying holes of the panel after being vaporized, so that the panel is cooled through convective heat transfer;
working mode three
When the gas velocity parameter Mach number is 0.2<Ma<0.8, the temperature parameter of the fuel gas is 500K<TGas combustion<1000K, test time<10s, when a large amount of water mist or cooling water is not allowed to exist in the test site, closing the cooling water outlet, introducing cooling water into the cooling water inlet until the gas guide plate is filled with the cooling water, and closing the cooling water inlet; when the gas impacts, the cooling water is vaporized and sprayed out from the water spray holes of the panel, and the sprayed water vapor is mixed with the gas to form a protective film, so that the heat transfer of the gas to the panel is isolated, and the panel is cooled;
5) starting a ground test of the aerospace engine assembly, and guiding the gas sprayed out in the test according to the working mode selected in the step 4) until the test is finished;
6) and adjusting all the adjustable long support rods to be shortest, rotating the lifting end b of the gas guide plate to the lowest position, loosening the connecting piece and taking down the adjustable short support rods.
Compared with the prior art, the invention has the following beneficial effects:
the movable gas flow guiding device and the using method thereof provided by the invention can meet the requirements of long gas impact bearing time, movability, angle adjustment and flexible splicing use required by a ground test of an aerospace engine assembly, and specifically comprise the following steps:
1. the movable gas flow guiding device and the using method thereof provided by the invention adopt the modes of cooling water vaporization cooling and convection heat transfer cooling, and reduce the temperature of the gas flow guiding plate in the gas flow guiding process, thereby obviously increasing the time that the gas flow guiding plate can bear gas impact and meeting the gas flow guiding requirement in the ground test of an aerospace engine assembly.
2. The movable gas flow guiding device and the using method thereof provided by the invention have the advantages that the movable vehicle is adopted to bear the gas flow guiding plate, the distance between the gas flow guiding plate and a gas spraying source can be adjusted, the adjustable long supporting rod is adopted as the lifting end b, the hinge joint is adopted as the supporting end a, and the gas flow guiding plate is arranged on the movable vehicle, so that the angle adjustment of the gas flow guiding plate can be realized, and the purpose of adjusting the gas impact angle d is further realized.
3. According to the movable gas flow guide device and the using method thereof, the moving vehicles of the plurality of movable gas flow guide devices can be connected by the lateral fixing lug seats and the connecting pieces arranged on the side walls of the moving vehicles, so that the gas flow guide plates can be flexibly spliced for use, and the ground test requirements of different aerospace engine assemblies are met.
4. According to the movable gas flow guiding device and the using method thereof, the movable vehicle is connected with the mounting base on the ground through the adjustable short supporting rod, the adjustable short supporting rod can adapt to different ground mounting environments through stretching, the movable vehicle is fixed and tensioned, the movable vehicle is easy to shorten and disassemble, and the movable gas flow guiding device is convenient to move and transport.
5. The movable fuel gas flow guiding device and the using method thereof provided by the invention adopt different working modes aiming at different fuel gas impact temperature and speed parameters, effectively guide the fuel gas and save water resources.
Drawings
FIG. 1 is a schematic structural diagram of a movable gas guiding device according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a gas baffle in an embodiment of the invention;
FIG. 3 is a schematic structural diagram of a gas deflector at a baffle in an embodiment of the invention;
FIG. 4 is a schematic view illustrating the flow direction of cooling water in a gas baffle according to an embodiment of the present invention;
FIG. 5 is a perspective view of a gas baffle in an embodiment of the present invention;
FIG. 6 is a schematic structural view of an adjustable long support rod according to an embodiment of the present invention;
FIG. 7 is a side view of a locomotive in an embodiment of the present invention;
FIG. 8 is a top view of the cart in an embodiment of the present invention;
FIG. 9(a) is a schematic structural diagram of two adjacent mobile carts according to an embodiment of the present invention;
FIG. 9(b) is a partial enlarged view of FIG. 9 (a);
FIG. 10 is a schematic view of the movable gas guiding device for guiding the gas in the embodiment of the present invention, in which c is the sprayed cooling water and d is the gas impact angle;
the reference numbers are as follows:
1-gas guide plate, 2-moving vehicle, 3-adjustable long support rod, 4-adjustable short support rod, 5-mounting seat, 6-panel, 7-bottom plate, 9-partition plate, 10-limber hole, 11-first side plate, 12-second side plate, 13-third side plate, 14-fourth side plate, 15-cooling water inlet, 16-cooling water outlet, 17-water spray hole, 18-lateral fixed lug seat, 19-sleeve, 20-round nut, 21-screw, 22-locking nut, 23-rotating block, 24-support rod lug seat, 25-support plate, 26-gas spray source, 27-gas and 28-handle.
Detailed Description
The invention is further described below with reference to the figures and examples.
A movable gas flow guiding device is shown in figures 1 to 10 and comprises a gas flow guiding plate 1, a moving vehicle 2, at least two adjustable long supporting rods 3, a plurality of adjustable short supporting rods 4 and a plurality of mounting seats 5. The gas guide plate 1 is a box body surrounded by a panel 6, a bottom plate 7 and four side plates; be equipped with 3 baffles 9 that are parallel to each other in the box, divide into 4 independent and equal passageways of volume with the interior region of box, and all be equipped with 3 limbers 10 on every baffle 9, the aperture is 50 mm. Of course, the number of the partition boards 9 can be set according to specific needs, and should be a number greater than or equal to 1, and the number of the water through holes 10 on each partition board 9 can also be set according to specific needs, but should be at least 1, that is, each partition board 9 must have the water through holes 10, this structure is favorable for water flow to rapidly flow into each area in the gas guide plate 1, and the partition boards 9 can also play a supporting role for the panel 6.
One side of bottom plate 7 is articulated as supporting end an with locomotive 2, and the part that is close to the opposite side on bottom plate 7 passes through adjustable long support rod 3 and 2 surface connections of locomotive are as lift end b, and each adjustable long support rod 3 sets up side by side, all adopts articulated the being connected between the both ends of adjustable long support rod 3 and bottom plate 7 and the locomotive 2, makes gas guide plate 1 can support the articulated department of end a as rotation center, change and the contained angle between locomotive 2.
The four side plates comprise a first side plate 11, a second side plate 12, a third side plate 13 and a fourth side plate 14 which are connected in sequence; the first side plate 11 is close to the supporting end a, and the third side plate 13 is close to the lifting end b; the first side plate 11 and the third side plate 13 are respectively provided with a cooling water inlet 15 and a cooling water outlet 16 which are respectively close to the second side plate 12 and the fourth side plate 14; the at least two adjustable long supporting rods 3 are arranged on the bottom plate 7 side by side along the direction perpendicular to the second side plate 12 and the fourth side plate 14; the panel 6 is uniformly provided with inclined hole type water spraying holes 17, the outlets of the water spraying holes 17 are inclined to the lifting end b, the included angle between the axis and the panel 6 is 15-40 degrees, the angle is selected in the range, the punching difficulty is relatively low, the resistance of cooling water impacted by gas is smaller, the cooling water can be sprayed out from the panel 6 more easily, and preferably, the included angle between the axis of the water spraying holes 17 and the panel 6 is 30 degrees. The diameter of the water jet holes 17 is 3mm, and the number n is selected according to the following principle: the sum of the cross-sectional areas of the water spray holes 17 should be smaller than the cross-sectional area of the cooling water inlet 15.
The panel 6 is respectively extended from the intersection of the first side plate 11 and the third side plate 13 to form a section of panel 6, and a plurality of support plates 25 are arranged between the lower surface of the extended panel 6 and the outer wall of the corresponding side plate, so that the cooling water inlet 15 and the cooling water outlet 16 can be protected from being impacted by gas 27, and further support can be provided for the panel 6.
The frame of the moving vehicle 2 is formed by splicing section steel, a plurality of lateral fixed lug seats 18 are arranged on four side walls of the frame, a handle 28 can be arranged on the side wall of the moving vehicle 2 for moving conveniently, and a bottom roller of the moving vehicle comprises a universal wheel and a fixed wheel; the plurality of adjustable short supporting rods 4 correspond to the plurality of mounting seats 5 one by one; the one end of adjustable short support bar 4 is passed through the connecting piece and is connected with mount pad 5, and the other end passes through the connecting piece to be connected with locomotive 2 and is close to first curb plate 11 and be close to the fixed ear seat 18 of side direction on the third curb plate 13 lateral wall for keep the stability of locomotive 2, the connecting piece includes bolt, nut and gasket, simple structure easily installs and removes.
The adjustable long support rod 3 comprises a sleeve 19, two round nuts 20, two screw rods 21 and two locking nuts 22; a rotating block 23 (such as an outer hexagonal rotating block for facilitating external rotating operation) is arranged in the middle of the outer wall of the sleeve 19; the inner walls of the two round nuts 20 are respectively provided with internal threads with opposite turning directions, and the outer walls of the two round nuts are respectively fixedly connected with two ends of the sleeve 19; the two screw rods 21 are respectively provided with external threads matched with the internal threads of the two round nuts 20, one ends of the two screw rods 21 are fixedly connected with supporting rod lug seats 24 for hinge joint, and the other ends of the two screw rods 21 extend into the sleeve 19 through the round nuts 20; the locking nut 22 is arranged outside the round nut 20, is in threaded connection with the screw 21, and is used for locking the relative position between the screw 21 and the sleeve 19, namely the relative position between the locking screw 21 and the round nut 20. The round nut 20 and the sleeve 19 are welded through fillet welding, and the sleeve 19 and the hexagonal rotary block 23 are welded through fillet welding. The adjustable supporting rod is simple in structure and convenient to operate. Meanwhile, the adjustable short support rod 4 and the adjustable long support rod 3 have the same structure, and the length of the sleeve 19 and the length of the screw 21 of the adjustable short support rod 4 are both shorter than the length of the sleeve 19 and the length of the screw 21 of the adjustable long support rod 3.
A use method of a movable fuel gas flow guide device comprises the following steps:
1) determining the distance between the panel 6 of the gas guide plate 1 and the gas spraying source 26 according to the test requirement, and further determining the test position of the gas guide plate 1;
2) determining whether the number of the required movable gas diversion devices is one or more according to the test requirement;
if the number of the required movable gas flow guide devices is one, the movable gas flow guide devices are moved to the determined test position, then the two ends of the adjustable short support rods 4 are respectively connected with the installation seats 5 and the corresponding lateral fixed lug seats 18 of the moving vehicle 2 through connecting pieces, all the adjustable short support rods 4 are adjusted to be proper in length, and all the installation seats 5 are fixed on the base of the test position;
if a plurality of required movable gas flow guide devices are arranged, the plurality of movable gas flow guide devices are moved to determined test positions, all the movable gas flow guide devices are arranged side by side, the moving vehicles 2 of two adjacent movable gas flow guide devices are connected with lateral fixed lug seats 18 (pin holes of the lateral fixed lug seats 18) on the side walls of the second side plate 12 and the fourth side plate 14 respectively through connecting pieces (comprising bolts, nuts and gaskets), then two ends of an adjustable short supporting rod 4 are respectively connected with the mounting seats 5 and the corresponding lateral fixed lug seats 18 of the moving vehicles 2 through the connecting pieces, all the adjustable short supporting rods 4 are adjusted to be proper in length, and all the mounting seats 5 are fixed on bases of the test positions;
3) according to the test requirement, the inclination angle of the gas guide plate 1 is determined, and the length of the adjustable long support rod 3 is adjusted to enable the gas guide plate 1 to rotate to the determined inclination angle;
4) according to the speed and temperature parameters of the impact of the gas 27, selecting a proper working mode for the movable gas guiding device:
working mode one
When the gas speed parameter Mach number is more than 0.8 and less than Ma and less than 1.5 and the gas temperature parameter is more than 1000K and less than TGas combustionWhen the temperature is less than 2000K, the cooling water outlet 16 is blocked,then cooling water with the pressure of 0.6-1 MPa is introduced into a cooling water inlet 15;
when the gas 27 impacts, all the introduced cooling water is sprayed out of the water spraying holes 17 of the panel 6 and is vaporized, so that the panel 6 is cooled;
working mode two
When the gas speed parameter Mach number is more than 0.5 and less than Ma and less than 1, and the gas temperature parameter is more than 800K and less than TGas combustionWhen the temperature is less than 1500K, opening a cooling water outlet 16, and introducing cooling water with the pressure of 0.8-1 MPa into a cooling water inlet 15;
when the gas 27 impacts, most of the introduced cooling water is discharged from the cooling water outlet 16, and a small part of the cooling water is sprayed out from the water spraying holes 17 of the panel 6 after being vaporized, so that the panel 6 is cooled through convective heat transfer and vaporization;
working mode three
When the gas velocity parameter Mach number is 0.2<Ma<0.8, the temperature parameter of the fuel gas is 500K<TGas combustion<1000K, test time<10s, when a large amount of water mist or cooling water is not allowed to exist in the test site, closing the cooling water outlet 16, introducing the cooling water into the cooling water inlet 15 until the gas guide plate 1 is filled with the cooling water, and closing the cooling water inlet 15;
when the gas 27 impacts, the cooling water is vaporized and sprayed out from the water spraying holes 17 of the panel 6, and the sprayed water vapor is mixed with the gas 27 to form a protective film, so that the heat transfer of the gas 27 to the panel 6 is isolated, and the panel 6 is cooled;
5) starting a ground test of the aerospace engine assembly, and guiding the gas 27 sprayed out in the test according to the working mode selected in the step 4) until the test is finished;
6) adjust all adjustable long support rods 3 to the shortest, make the lift end b of gas guide plate 1 rotatory to the extreme lower position, loosen the connecting piece, take off adjustable short support rod 4, demolish the connection between adjustable long support rod 3 and the lift end b, all keep flat gas guide plate 1 and adjustable long support rod 3 on locomotive 2 (be convenient for portable gas guiding device's the transportation of being convenient for like this and deposit), can remove portable gas guiding device, use when waiting for the next test.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same, and it is obvious for a person skilled in the art to modify the specific technical solutions described in the foregoing embodiments or to substitute part of the technical features, and these modifications or substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions protected by the present invention.
Claims (10)
1. The utility model provides a portable gas guiding device which characterized in that: the gas guide plate device comprises a gas guide plate (1), a moving vehicle (2), at least two adjustable long support rods (3), a plurality of adjustable short support rods (4) and a plurality of mounting seats (5);
the gas guide plate (1) is a box body formed by a panel (6), a bottom plate (7) and four side plates in a surrounding mode; n parallel partition plates (9) are arranged in the box body, the area in the box body is divided into N +1 independent channels, and each partition plate (9) is provided with a limber hole (10); n is more than or equal to 1;
one side of the bottom plate (7) is hinged with the moving vehicle (2) to serve as a supporting end a, the part, close to the other side, of the bottom plate (7) is connected with the moving vehicle (2) through the adjustable long supporting rod (3) to serve as a lifting end b, the two ends of the adjustable long supporting rod (3) are hinged with the bottom plate (7) and the moving vehicle (2), the hinged position of the supporting end a of the gas guide plate (1) serves as a rotating center, and the included angle between the gas guide plate and the moving vehicle (2) is changed;
the four side plates comprise a first side plate (11), a second side plate (12), a third side plate (13) and a fourth side plate (14) which are connected in sequence; the first side plate (11) is close to the supporting end a, and the third side plate (13) is close to the lifting end b; the first side plate (11) and the third side plate (13) are respectively provided with a cooling water inlet (15) and a cooling water outlet (16), and the first side plate and the third side plate are respectively close to the second side plate (12) and the fourth side plate (14);
the at least two adjustable long supporting rods (3) are arranged on the bottom plate (7) side by side along a direction perpendicular to the second side plate (12) and the fourth side plate (14);
inclined hole type water spraying holes (17) are uniformly formed in the panel (6), outlets of the water spraying holes (17) incline to the lifting end b, and an included angle formed between the axis of each water spraying hole (17) and the panel (6) is 15-40 degrees;
a plurality of lateral fixing lug seats (18) are arranged on four side walls of the moving vehicle (2);
the plurality of adjustable short supporting rods (4) correspond to the plurality of mounting seats (5) one by one; one end of the adjustable short supporting rod (4) is connected with the mounting seat (5) through a connecting piece, and the other end of the adjustable short supporting rod is connected with a lateral fixing lug seat (18) on the side wall of the first side plate (11) and the third side plate (13) close to the moving vehicle (2) through the connecting piece.
2. The mobile gas deflector of claim 1, wherein:
the adjustable long support rod (3) comprises a sleeve (19), two round nuts (20), two screw rods (21) and two locking nuts (22);
the middle part of the outer wall of the sleeve (19) is provided with a rotating block (23);
the inner walls of the two round nuts (20) are respectively provided with internal threads with opposite turning directions, and the outer walls of the two round nuts are respectively fixedly connected to the two ends of the sleeve (19);
the two screw rods (21) are respectively provided with external threads matched with the internal threads of the two round nuts (20), one ends of the two screw rods (21) are fixedly connected with supporting rod lug seats (24) for hinging, and the other ends of the two screw rods extend into the sleeve (19) through the round nuts (20);
the locking nut (22) is arranged on the outer side of the round nut (20) and is in threaded connection with the screw rod (21).
3. A mobile gas deflector as recited in claim 2, further comprising:
the adjustable short supporting rod (4) and the adjustable long supporting rod (3) are identical in structure, and the length of the sleeve (19) and the length of the screw rod (21) of the adjustable short supporting rod are both shorter than the length of the sleeve (19) and the length of the screw rod (21) of the adjustable long supporting rod (3).
4. A mobile gas deflector as in any of claims 1 to 3, wherein:
the number of the partition plates (9) is 3, and the interior of the gas guide plate (1) is divided into 4 channels with equal volume.
5. The mobile gas deflector of claim 4, wherein:
the number of the water through holes (10) on each partition plate (9) is 3, and the hole diameter is 50 mm.
6. The mobile gas deflector of claim 5, wherein:
the included angle between the axis of the water spray hole (17) and the panel (6) is 30 degrees.
7. The mobile gas deflector of claim 6, wherein:
the panel (6) respectively extends out a section of panel (6) with the crossing department of first curb plate (11) and third curb plate (13), extends to be equipped with a plurality of backup pads (25) between the outer wall of panel (6) lower surface and corresponding curb plate.
8. The mobile gas deflector of claim 7, wherein:
the connecting piece comprises a bolt, a nut and a gasket.
9. A mobile gas deflector as recited in claim 2, further comprising:
the rotating block (23) is an outer hexagonal rotating block.
10. A use method of a movable fuel gas flow guide device is characterized in that: the mobile gas guiding device of any one of claims 1 to 9 is adopted, comprising the following steps:
1) determining the distance between a panel (6) of the gas guide plate (1) and a gas spraying source (26) according to test requirements, and further determining the test position of the gas guide plate (1);
2) determining the number of the required movable gas diversion devices according to the test requirements;
if the number of the required movable gas flow guide devices is one, the movable gas flow guide devices are moved to a determined test position, then two ends of each adjustable short support rod (4) are respectively connected with the installation seat (5) and the corresponding lateral fixing lug seat (18) of the moving vehicle (2) through connecting pieces, all the adjustable short support rods (4) are adjusted to be proper in length, and all the installation seats (5) are fixed on the base of the test position;
if a plurality of required movable gas flow guide devices are arranged, the plurality of movable gas flow guide devices are moved to a determined test position, all the movable gas flow guide devices are arranged side by side, the moving vehicles (2) of two adjacent movable gas flow guide devices are connected with lateral fixed lug seats (18) on the side walls of a second side plate (12) and a fourth side plate (14) respectively through connecting pieces, then two ends of an adjustable short supporting rod (4) are respectively connected with a mounting seat (5) and the corresponding lateral fixed lug seats (18) of the moving vehicle (2) through the connecting pieces, all the adjustable short supporting rods (4) are adjusted to be proper in length, and all the mounting seats (5) are fixed on a base at the test position;
3) according to the test requirement, the inclination angle of the gas guide plate (1) is determined, and the gas guide plate (1) is rotated to the determined inclination angle by adjusting the length of the adjustable long support rod (3);
4) according to the speed and temperature parameters of the impact of the fuel gas (27), selecting a proper working mode for the movable fuel gas flow guiding device:
working mode one
When the gas speed parameter Mach number is more than 0.8 and less than Ma and less than 1.5 and the gas temperature parameter is more than 1000K and less than TGas combustionWhen the temperature is less than 2000K, the cooling water outlet (16) is blocked, and then cooling water with the pressure of 0.6-1 MPa is introduced at the cooling water inlet (15); when the fuel gas (27) impacts, all the introduced cooling water is sprayed out from the water spraying holes (17) of the panel (6) and is vaporized, so that the panel (6) is cooled;
working mode two
When the gas speed parameter Mach number is more than 0.5 and less than Ma and less than 1, and the gas temperature parameter is more than 800K and less than TGas combustionWhen the temperature is less than 1500K, opening a cooling water outlet (16), and introducing cooling water with the pressure of 0.8-1 MPa into a cooling water inlet (15); when the fuel gas (27) impacts, most of the introduced cooling water is discharged from the cooling water outlet (16), and a small part of the introduced cooling water is coldThe vaporized water is sprayed out from the water spraying holes (17) of the panel (6) to cool the panel (6) through convection heat transfer and vaporization;
working mode three
When the gas velocity parameter Mach number is 0.2<Ma<0.8, the temperature parameter of the fuel gas is 500K<TGas (es)<1000K, test time<10s and when a large amount of water mist or cooling water is not allowed to exist in the test site, closing the cooling water outlet (16), introducing the cooling water into the cooling water inlet (15) until the gas guide plate (1) is filled with the cooling water, and closing the cooling water inlet (15); when the fuel gas (27) impacts, the cooling water is vaporized and sprayed out from the water spraying holes (17) of the panel (6), the sprayed water vapor is mixed with the fuel gas (27) to form a protective film, the heat transfer of the fuel gas (27) to the panel (6) is isolated, and the panel (6) is cooled;
5) starting a ground test of the aerospace engine assembly, and guiding the flow of the gas (27) sprayed out in the test according to the working mode selected in the step 4) until the test is finished;
6) adjust all adjustable long support rods (3) to the shortest, make the lift end b of gas guide plate (1) rotate to the extreme lower position, loosen the connecting piece, take off adjustable short support rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110813038.0A CN113606060B (en) | 2021-07-19 | 2021-07-19 | Movable fuel gas flow guide device and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110813038.0A CN113606060B (en) | 2021-07-19 | 2021-07-19 | Movable fuel gas flow guide device and using method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113606060A CN113606060A (en) | 2021-11-05 |
| CN113606060B true CN113606060B (en) | 2022-05-10 |
Family
ID=78337893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110813038.0A Active CN113606060B (en) | 2021-07-19 | 2021-07-19 | Movable fuel gas flow guide device and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113606060B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712808A (en) * | 2012-09-29 | 2014-04-09 | 北京航天发射技术研究所 | Detection system for single-jet-pipe rocket launch water-spray cooling noise-reduction effect |
| CN109470079A (en) * | 2018-10-30 | 2019-03-15 | 湖北航天技术研究院总体设计所 | A kind of truck-mounted missile transmitting single side air deflector and the car launcher with the air deflector |
| CN109470080A (en) * | 2018-10-30 | 2019-03-15 | 湖北航天技术研究院总体设计所 | A kind of truck-mounted missile transmitting guiding device and the car launcher with the guiding device |
| CN110425057A (en) * | 2019-07-10 | 2019-11-08 | 南京理工大学 | A kind of combustion gas stream guiding device for vehicle-mounted rocket launching |
| CN110864584A (en) * | 2018-08-27 | 2020-03-06 | 南京理工大学 | Adjustable gas jet flow guiding device for rocket missile launching |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103043220B (en) * | 2011-10-13 | 2015-07-01 | 王力丰 | Taking-off and landing system of shipboard aircraft of aircraft carrier and taking-off and landing method thereof |
-
2021
- 2021-07-19 CN CN202110813038.0A patent/CN113606060B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712808A (en) * | 2012-09-29 | 2014-04-09 | 北京航天发射技术研究所 | Detection system for single-jet-pipe rocket launch water-spray cooling noise-reduction effect |
| CN110864584A (en) * | 2018-08-27 | 2020-03-06 | 南京理工大学 | Adjustable gas jet flow guiding device for rocket missile launching |
| CN109470079A (en) * | 2018-10-30 | 2019-03-15 | 湖北航天技术研究院总体设计所 | A kind of truck-mounted missile transmitting single side air deflector and the car launcher with the air deflector |
| CN109470080A (en) * | 2018-10-30 | 2019-03-15 | 湖北航天技术研究院总体设计所 | A kind of truck-mounted missile transmitting guiding device and the car launcher with the guiding device |
| CN110425057A (en) * | 2019-07-10 | 2019-11-08 | 南京理工大学 | A kind of combustion gas stream guiding device for vehicle-mounted rocket launching |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113606060A (en) | 2021-11-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103712522A (en) | Rocket launching system with water spraying, cooling and denoising functions | |
| CN113606060B (en) | Movable fuel gas flow guide device and using method thereof | |
| CN106671007B (en) | A kind of groove type heat collector cantilever beam assembly tool and assemble method | |
| CN105841968A (en) | Device for spray-wall impingement combustion experiment in constant volume bomb | |
| CN110425057B (en) | Gas flow guiding device for vehicle-mounted rocket launching | |
| CN201728169U (en) | Spraying gun for cooling water | |
| CN215804960U (en) | Fan concrete shell ring concatenation construction operation platform | |
| CN216274329U (en) | Supersonic flame spraying auxiliary positioning structure for preventing workpiece from shaking | |
| CN108820266A (en) | A kind of lunar surface takes off initial attitude simulator | |
| CN111707473B (en) | Engine test run injection cylinder with tile type lining plate protection structure and design method thereof | |
| CN114516428A (en) | Test method and device for light aircraft engine matching design | |
| CN115680781A (en) | Impeller exhaust device with cooling function | |
| CN208476104U (en) | A kind of diesel engine cooling jet aligning tool | |
| CN109267460B (en) | Cooling device for road surface construction | |
| CN109342241B (en) | High-temperature high-speed gas jet multifunctional erosion test device | |
| CN201136882Y (en) | High-temperature quenching oil tank cooling device | |
| CN220434626U (en) | Pipeline overhauls cat ladder | |
| CN220448566U (en) | Quick-dismantling type multifunctional shipping baffle support | |
| CN110280939A (en) | A kind of column crane mast section welder and method | |
| CN213707653U (en) | Offshore wind power tower maintenance device | |
| CN220018323U (en) | Movable combined type transmitting table structure | |
| CN214657747U (en) | Steel structure for multi-layer heavy-load factory building | |
| CN115264953B (en) | Supporting device for ultra-large heat storage type heater and mounting method | |
| CN219772634U (en) | Synchronous construction emulsified asphalt sprinkler of hot in-Place recycling | |
| CN216665632U (en) | Arch spraying trolley arm frame system and arch spraying trolley |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |