CN211008895U - Multifunctional detachable nozzle test device - Google Patents
Multifunctional detachable nozzle test device Download PDFInfo
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- CN211008895U CN211008895U CN201921577509.7U CN201921577509U CN211008895U CN 211008895 U CN211008895 U CN 211008895U CN 201921577509 U CN201921577509 U CN 201921577509U CN 211008895 U CN211008895 U CN 211008895U
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Abstract
The utility model discloses a multi-functional removable nozzle test device that trades can be divided into three kinds of equipment modes of mode A, B, C according to the difference of nozzle type. Where mode a is for a dual centrifugal oxidizer nozzle, mode B is for a single centrifugal oxidizer nozzle, and mode C is for a straight flow oxidizer nozzle. The utility model discloses can screw into the degree of depth through the installation direction or the screw thread of changing fastening screw post, change sealed post or the high realization of support ring, the range of application has obtained showing and has widened. The utility model discloses can measure simultaneously to two tunnel oxidants, fuel all the way, also can compromise two tunnel or one way measurement simultaneously, remedy current nozzle test device not enough, can satisfy the test requirement of different grade type nozzles such as coaxial direct current, coaxial centrifugation, possess certain nozzle length adaptability, possess the nozzle simultaneously and change convenience, simple structure, advantage that maneuverability is strong.
Description
Technical Field
The utility model relates to a multi-functional removable nozzle test device that trades for the nozzle sprays research field.
Background
The nozzle test device is widely applied to the fields of aerospace, petrochemical industry, automobiles and the like, which relate to nozzle injection research. The nozzle is used as a key part of the liquid rocket engine and is used for injecting oxidant and fuel entering the combustion device into the combustion chamber in a certain mixing ratio, so that the oxidant and the fuel can be efficiently and stably combusted in the combustion chamber. Therefore, it is necessary to study the ejection characteristics of the nozzle, and a properly designed nozzle testing apparatus is required.
With the continued development of rocket engine technology, it is often necessary to design multiple nozzle configurations for testing in order to meet the requirements. This puts the following requirements on the design of the nozzle test apparatus: has certain nozzle length adaptability; the device has the capability of measuring more than two paths (oxidant/fuel) simultaneously; the spray test can be carried out for nozzles of different types of construction.
The existing nozzle test device has the following defects: generally, the method is only limited to be used for a single nozzle structure test, and various tools are required to be designed for testing nozzles with different structures; at most, the requirement of simultaneously measuring the oxidant and the fuel can be met; the adaptability to the change of the nozzle length is low, namely the change range of the nozzle length for testing is narrow, and even the nozzle height is required to be constant.
SUMMERY OF THE UTILITY MODEL
The technical solution problem of the utility model is that: overcome prior art's not enough, provide a multi-functional removable nozzle test device that trades, can satisfy the experimental requirement of multichannel simultaneous measurement requirement and different grade type nozzle, possess the nozzle simultaneously and change the advantage convenient, simple structure, maneuverability is strong.
The technical solution of the utility model is that:
a multifunctional detachable nozzle test device is characterized in that an axial through hole for oxidant flowing is axially formed in a double-centrifugal oxidant nozzle, a first tangential hole A and a second tangential hole B which are tangential to the axial through hole are circumferentially and uniformly formed in the side wall of the double-centrifugal oxidant nozzle, an axial through hole for fuel flowing is axially formed in a fuel nozzle, and radial holes or tangential holes which are tangential to the axial through hole are circumferentially and uniformly formed in the side wall of the double-centrifugal oxidant nozzle;
the inlet pipe nozzle A, the upper end shell and the pressure measuring filler pipe nozzle A are welded to form an upper end shell assembly; the inlet pipe nozzle B, the middle shell and the pressure measuring pipe nozzle B are welded to form a middle shell assembly; the inlet pipe nozzle C, the lower end shell and the pressure measuring pipe nozzle C are welded to form a lower end shell assembly; the double centrifugal oxidant nozzles penetrate through the through holes in the lower end face of the upper end shell and are in clearance fit with the through holes in the lower end face of the upper end shell, the middle shell assembly and the middle partition plate are sequentially placed below the upper end shell assembly, the middle partition plate is in clearance fit with the double centrifugal oxidant nozzles, the fuel nozzles are sleeved outside the outlet ends of the double centrifugal oxidant nozzles, the lower end shell assembly is positioned below the middle partition plate, and the lower end face of the upper end shell and the upper end face of the lower end shell are fixedly connected through bolts; the inlet end of the double-centrifugal oxidant nozzle is provided with a sealing column, the fastening threaded column penetrates through the upper end shell and then tightly presses the sealing column, and the fastening threaded column is in threaded connection with the upper end shell; the sealing cover is positioned above the upper end shell and is connected with the fastening threaded column through threads;
sealing rings are respectively arranged between the sealing cover and the upper end face of the upper end shell, between the double centrifugal oxidant nozzle and the lower end face of the upper end shell, between the double centrifugal oxidant nozzle and the middle partition plate, between the lower end face of the upper end shell and the middle shell, between the middle shell and the middle partition plate, between the middle partition plate and the upper end face of the lower end shell, and between the lower end face of the lower end shell and the fuel nozzle;
the first tangential hole A is located in the upper end shell assembly, the second tangential hole B is located in the middle shell assembly, and the radial hole of the fuel nozzle or the tangential hole tangent to the axial through hole of the fuel nozzle is located in the lower end shell assembly.
The inner diameter of a through hole at the joint of the double centrifugal oxidant nozzle and the lower end face of the upper end shell is larger than that of a through hole at the joint of the middle partition plate and the double centrifugal oxidant nozzle.
And double sealing rings are adopted between the double centrifugal oxidant nozzles and the lower end face of the upper end shell and between the double centrifugal oxidant nozzles and the middle partition plate for sealing.
A multifunctional detachable nozzle test device is characterized in that an axial through hole for oxidant flowing is axially formed in a single-centrifugal oxidant nozzle, tangential holes C tangential to the axial through hole are uniformly formed in the side wall along the circumferential direction, an axial through hole for fuel flowing is axially formed in the fuel nozzle, radial holes or tangential holes tangential to the axial through hole are uniformly formed in the side wall along the circumferential direction, and the multifunctional detachable nozzle test device comprises an inlet pipe nozzle A, an inlet pipe nozzle C, an upper end shell, a lower end shell, a sealing cover, a fastening threaded column, a sealing column, a pressure measuring pipe connecting nozzle A and a pressure measuring pipe connecting nozzle C;
the inlet pipe nozzle A, the upper end shell and the pressure measuring filler pipe nozzle A are welded to form an upper end shell assembly; the inlet pipe nozzle C, the lower end shell and the pressure measuring pipe nozzle C are welded to form a lower end shell assembly; the single centrifugal oxidant nozzle penetrates through a through hole in the lower end face of the upper end shell and is in clearance fit with the through hole in the lower end face of the upper end shell, the fuel nozzle is sleeved outside the outlet end of the single centrifugal oxidant nozzle, the lower end shell assembly is positioned below the upper end shell, and the lower end face of the upper end shell and the upper end face of the lower end shell are fixedly connected through bolts; the inlet end of the single centrifugal oxidant nozzle is provided with a sealing column, the fastening threaded column penetrates through the upper end shell and then tightly presses the sealing column, and the fastening threaded column is in threaded connection with the upper end shell; the sealing cover is positioned above the upper end shell and is connected with the fastening threaded column through threads;
sealing rings are respectively arranged between the sealing cover and the upper end surface of the upper end shell, between the single-centrifugal oxidant nozzle and the lower end surface of the upper end shell, between the lower end surface of the upper end shell and the upper end surface of the lower end shell and between the lower end surface of the lower end shell and the fuel nozzle;
the tangential hole C is positioned in the upper end shell assembly, and the radial hole of the fuel nozzle or the tangential hole tangent to the axial through hole of the fuel nozzle is positioned in the lower end shell assembly.
And the single centrifugal oxidant nozzle and the lower end surface of the upper end shell are sealed by adopting a double-channel sealing ring.
A multifunctional detachable nozzle test device is characterized in that an axial through hole for flowing an oxidant is axially formed in a direct-current oxidant nozzle, an axial through hole for flowing a fuel is axially formed in a fuel nozzle, radial holes or tangential holes tangent to the axial through hole are uniformly formed in the side wall of the fuel nozzle along the circumferential direction, and the device comprises an inlet pipe nozzle A, an inlet pipe nozzle C, an upper end shell, a lower end shell, a support ring, a throttling ring, a sealing cover, a fastening threaded column, a pressure measuring pipe connecting nozzle A and a pressure measuring pipe connecting nozzle C;
the inlet pipe nozzle A, the upper end shell and the pressure measuring filler pipe nozzle A are welded to form an upper end shell assembly; the inlet pipe nozzle C, the lower end shell and the pressure measuring pipe nozzle C are welded to form a lower end shell assembly; the direct current oxidizer nozzle penetrates through a through hole in the lower end face of the upper end shell and is in clearance fit with the through hole in the lower end face of the upper end shell, the fuel nozzle is sleeved outside the outlet end of the direct current oxidizer nozzle, the lower end shell assembly is positioned below the upper end shell, and the lower end face of the upper end shell and the upper end face of the lower end shell are fixedly connected through bolts; a throttle ring is arranged at the inlet end of the direct current oxidant nozzle, a support ring is arranged above the throttle ring, a fastening threaded column penetrates through the upper end shell and then tightly presses the support ring, and the fastening threaded column is in threaded connection with the upper end shell; the sealing cover is positioned above the upper end shell and is connected with the fastening threaded column through threads;
sealing rings are respectively arranged between the sealing cover and the upper end surface of the upper end shell, between the direct current oxidant nozzle and the lower end surface of the upper end shell, between the lower end surface of the upper end shell and the upper end surface of the lower end shell and between the lower end surface of the lower end shell and the fuel nozzle;
the supporting ring is uniformly perforated in the circumferential direction, and radial holes of the fuel nozzle or tangential holes tangent to the axial through hole of the fuel nozzle are positioned in the lower end shell assembly.
The support ring one end is opened there is the rectangular channel, the rectangular channel is along the circumferencial direction equipartition, and the total area of rectangular channel is more than 1.5 times of direct current oxidant nozzle axial through-hole area, and support ring inner bore area is more than 3 times of throttle ring inner bore area.
And a double-channel sealing ring is adopted for sealing between the direct current oxidant nozzle and the lower end surface of the upper end shell.
The two ends of the fastening threaded column are regular hexagonal prisms, the middle of the fastening threaded column is a threaded column, and the overall dimension of the threaded column is larger than that of the regular hexagonal prisms at the two ends; the heights of the regular hexagonal prisms at the two ends of the fastening threaded column are different, and the height of the high regular hexagonal prism is 1.5-3 times that of the low regular hexagonal prism.
The fastening threaded column can be screwed into the upper end shell by selecting a high regular hexagonal prism or a low regular hexagonal prism according to the length of the oxidant nozzle.
Compared with the prior art, the utility model the advantage lie in:
(1) the multifunctional detachable nozzle test device designed by the utility model has the advantages that parts of each part can be detached and assembled into different modes, so that the measurement of different types of nozzles (double centrifugal oxidant nozzles, single centrifugal oxidant nozzles and direct-current oxidant nozzles) is realized, and the test cost is saved;
(2) the multifunctional replaceable nozzle test device designed by the utility model realizes the function of three-path simultaneous measurement, and can simultaneously take two-path or one-path measurement into account, thereby making up the defects of the existing nozzle test device;
(3) the utility model relates to a multifunctional detachable nozzle test device, which has a certain nozzle length adaptability and can be realized by changing the installation direction of a fastening screw column or the screw thread screwing depth and changing the height of a sealing column or a support ring, and the application range is remarkably widened;
(4) the utility model discloses a multi-functional removable nozzle test device that trades, regular hexagonal prism structure is designed into at fastening screw post both ends, conveniently utilizes the instrument to tear open and trade.
(5) The utility model discloses a multi-functional removable nozzle test device that trades sets up twice radial seal in the oxidant nozzle outside, has improved the sealing reliability.
Drawings
FIG. 1 is a schematic structural view of a mode A of the multifunctional replaceable nozzle testing device of the present invention;
FIG. 2 is a schematic structural view of a mode B of the multifunctional replaceable nozzle testing device of the present invention;
FIG. 3 is a schematic structural view of a mode C of the multifunctional replaceable nozzle testing device of the present invention;
FIG. 4 is a schematic view of a fastening screw column of the multifunctional replaceable nozzle testing device of the present invention;
FIG. 5 is a schematic view of a support ring structure in mode C of the multifunctional replaceable nozzle testing apparatus of the present invention;
in the figure: 1. an inlet nozzle A; 2. an inlet nozzle B; 3. an inlet nozzle C; 4. an upper end housing; 5. a middle housing; 6. a middle partition plate; 7. a lower end housing; 8. a sealing cover; 9. fastening the threaded column; 10. a dual centrifugal oxidant nozzle; 11. a fuel nozzle; 12. a sealing ring A; 13. sealing the column; 14. a seal ring B; 15. a seal ring C; 16. a seal ring D; 17. a seal ring E; 18. a pressure measuring filler neck A; 26. a pressure measuring filler neck B; 27. a pressure measuring filler neck C; 19. a bolt A; 20. a nut; 21. a bolt B; 22. a single centrifugal oxidant nozzle; 23. a direct current oxidant nozzle; 24. a support ring; 25. and a throttle ring.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 3, the multifunctional detachable nozzle testing device of the present invention includes an inlet nozzle a1, an inlet nozzle B2, an inlet nozzle C3, an upper housing 4, a middle housing 5, a middle partition 6, a lower housing 7, a sealing cap 8, a fastening screw column 9, a dual centrifugal oxidizer nozzle 10, a fuel nozzle 11, a sealing ring a12, a sealing column 13, a sealing ring B14, a sealing ring C15, a sealing ring D16, a sealing ring E17, a pressure measuring filler a18, a pressure measuring filler B26, a pressure measuring filler C27, a bolt a19, a nut 20, a bolt B21, a single centrifugal oxidizer nozzle 22, a direct oxidizer nozzle 23, a support ring 24, and a throttle ring 25.
The multifunctional replaceable nozzle test device can be divided into three assembling modes of A, B, C according to different types of nozzles. Where mode a is for a dual centrifugal oxidizer nozzle, mode B is for a single centrifugal oxidizer nozzle, and mode C is for a straight flow oxidizer nozzle.
Wherein, the fuel nozzle is axially provided with an axial through hole for fuel to flow, and the side wall is uniformly provided with radial holes or tangential holes tangent to the axial through hole along the circumferential direction; the inner part of the double-centrifugal oxidant nozzle is axially provided with an axial through hole for oxidant to flow, and the side wall is uniformly provided with a first tangential hole A and a second tangential hole B which are tangential to the axial through hole along the circumferential direction. The inner part of the single centrifugal oxidant nozzle is axially provided with an axial through hole for oxidant to flow, and the side wall is uniformly provided with tangential holes C tangential to the axial through hole along the circumferential direction. The inner part of the direct current oxidant nozzle is axially provided with an axial through hole for oxidant to flow.
The inlet nozzle A1, the upper end shell 4 and the pressure measuring filler nozzle A18 are welded to form an upper end shell assembly; the inlet nozzle B2, the middle shell 5 and the pressure measuring filler nozzle B26 are welded to form a middle shell assembly; the inlet nozzle C3, the lower end shell 7 and the pressure measuring filler nozzle C27 are welded to form a lower end shell assembly;
mode A:
the double centrifugal oxidant nozzles 10 penetrate through holes in the lower end face of the upper end shell 4 and are in clearance fit with the through holes in the lower end face of the upper end shell 4, the middle shell assembly and the middle partition plate 6 are sequentially placed below the upper end shell assembly, the middle partition plate 6 is in clearance fit with the double centrifugal oxidant nozzles 10, the fuel nozzles 11 are sleeved outside the outlet ends of the double centrifugal oxidant nozzles 10, the lower end shell assembly is located below the middle partition plate 6, and the lower end face of the upper end shell 4 and the upper end face of the lower end shell 7 are fixedly connected through bolts; the inlet end of the double-centrifugal oxidant nozzle 10 is provided with a sealing column 13, the fastening threaded column 9 penetrates through the upper end shell 4 and then tightly presses the sealing column 13, and the fastening threaded column 9 is in threaded connection with the upper end shell 4; the sealing cover 8 is positioned above the upper end shell 4 and is connected with the fastening threaded column 9 through threads;
a sealing ring A12 is arranged between the sealing cover 8 and the upper end face of the upper end shell 4, a double sealing ring D16 is arranged between the double centrifugal oxidizer nozzle 10 and the lower end face of the upper end shell 4, a double sealing ring E17 is arranged between the double centrifugal oxidizer nozzle 10 and the middle partition plate 6, sealing rings B14 are arranged between the lower end face of the upper end shell 4 and the middle shell 5, between the middle shell 5 and the middle partition plate 6, between the middle partition plate 6 and the upper end face of the lower end shell 7, and a sealing ring C15 is arranged between the lower end face of the lower end shell 7 and the fuel nozzle 11.
The first tangential hole A is located in the upper end shell assembly, the second tangential hole B is located in the middle shell assembly, and the radial hole of the fuel nozzle or the tangential hole tangent to the axial through hole of the fuel nozzle is located in the lower end shell assembly.
The inner diameter of the hole at the joint of the upper end shell 4 and the oxidant nozzle is larger than that of the hole at the joint of the middle partition plate 6 and the oxidant nozzle. Mode a is shown in fig. 1.
And (3) mode B:
the single centrifugal oxidant nozzle 22 penetrates through a through hole in the lower end face of the upper end shell 4 and is in clearance fit with the through hole in the lower end face of the upper end shell 4, the fuel nozzle 11 is sleeved outside the outlet end of the single centrifugal oxidant nozzle 22, the lower end shell assembly is positioned below the upper end shell 4, and the lower end face of the upper end shell 4 and the upper end face of the lower end shell 7 are fixedly connected through bolts; the inlet end of the single centrifugal oxidant nozzle 22 is provided with a sealing column 13, a fastening threaded column 9 penetrates through the upper end shell 4 and then tightly presses the sealing column 13, and the fastening threaded column 9 is in threaded connection with the upper end shell 4; the sealing cover 8 is positioned above the upper end shell 4 and is connected with the fastening threaded column 9 through threads;
a seal ring a12 is installed between the seal cover 8 and the upper end face of the upper end casing 4, a double seal ring D16 is installed between the single centrifugal oxidizer nozzle 22 and the lower end face of the upper end casing 4, a seal ring B14 is installed between the lower end face of the upper end casing 4 and the upper end face of the lower end casing 7, and a seal ring C15 is installed between the lower end face of the lower end casing 7 and the fuel nozzle 11.
The tangential hole C is positioned in the upper end shell assembly, and the radial hole of the fuel nozzle or the tangential hole tangent to the axial through hole of the fuel nozzle is positioned in the lower end shell assembly. Mode B is shown in fig. 2.
And mode C:
the direct current oxidizer nozzle 23 penetrates through a through hole in the lower end face of the upper end shell 4 and is in clearance fit with the through hole in the lower end face of the upper end shell 4, the fuel nozzle 11 is sleeved outside the outlet end of the direct current oxidizer nozzle 23, the lower end shell assembly is positioned below the upper end shell 4, and the lower end face of the upper end shell 4 is fixedly connected with the upper end face of the lower end shell 7 through bolts; a throttle ring 25 is arranged at the inlet end of the direct-current oxidant nozzle 23, a support ring 24 is arranged above the throttle ring 25, the support ring 24 is pressed after the fastening threaded column 9 penetrates through the upper end shell 4, and the fastening threaded column 9 is in threaded connection with the upper end shell 4; the sealing cover 8 is positioned above the upper end shell 4 and is connected with the fastening threaded column 9 through threads;
a seal ring a12 is installed between the seal cover 8 and the upper end face of the upper end housing 4, a double seal ring D16 is installed between the direct current oxidizer nozzle 23 and the lower end face of the upper end housing 4, a seal ring B14 is installed between the lower end face of the upper end housing 4 and the upper end face of the lower end housing 7, and a seal ring C15 is installed between the lower end face of the lower end housing 7 and the fuel nozzle 11. Mode C is shown in fig. 3.
The support ring 24 is circumferentially uniformly perforated and the fuel nozzle radial holes or tangential holes tangential to its axial through-hole are located in the lower housing assembly.
As shown in fig. 4, the fastening threaded column 9 has two regular hexagonal prisms at two ends and a threaded column in the middle, and the external dimension of the threaded column is larger than that of the regular hexagonal prisms at two ends.
And the height of the regular hexagonal prisms at the two ends of the fastening threaded column 9 is different, and the height of the high regular hexagonal prism is 1.5-3 times that of the low regular hexagonal prism.
As shown in fig. 5, one end of the support ring 24 is provided with 3 to 5 rectangular grooves which are uniformly distributed along the circumferential direction, the total area of the rectangular grooves is more than 1.5 times of the area of the axial through hole of the direct current oxidizer nozzle 23, and the area of the inner hole of the support ring 24 is more than 3 times of the area of the inner hole of the throttle ring 25.
The sealing column 13 can be made of metal or nonmetal.
The fuel nozzle 11 type may be straight flow or centrifugal.
During the test of the mode A, the inlet nozzle A1 and the inlet nozzle B2 are connected with an oxidant supply pipeline, the inlet nozzle C3 is connected with a fuel supply pipeline, and corresponding pressure sensors are arranged at the pressure measuring filler neck A18, the pressure measuring filler neck B26 and the pressure measuring filler neck C27.
During the test, the oxidant is divided into two paths: one path is ejected through inlet nozzle a1, first tangential hole a and axial through hole on dual centrifugal oxidizer nozzle 10; one path exits via the inlet nozzle B2, the second tangential holes B on the dual centrifugal oxidant nozzle 10, and the axial through-holes. Fuel is injected through inlet nozzle C3, the annular gap between dual centrifugal oxidant nozzle 10 and fuel nozzle 11. The flow resistance characteristics of the dual centrifugal oxidizer nozzle and the fuel nozzle are obtained by measuring the flow rate at the inlet nozzle A, the inlet nozzle B and the inlet nozzle C and the pressure at the pressure measuring nozzle A18, the pressure measuring nozzle B26 and the pressure measuring nozzle C27, and the characteristics of the atomized particle size, the atomized cone angle and the like are obtained by measuring the spraying states at the outlets of the dual centrifugal oxidizer nozzle and the fuel nozzle, so that the test of the nozzles is completed.
And (3) mode B: during testing, the inlet nozzle A1 is connected with an oxidant supply pipeline, the inlet nozzle C3 is connected with a fuel supply pipeline, and the pressure measuring filler neck 18 and the pressure measuring filler neck C27 are respectively provided with a corresponding pressure sensor.
Oxidant is injected through inlet nozzle a1, tangential holes C and axial through holes in the single centrifugal oxidant nozzle 22. Fuel is injected through inlet nozzle C3, the annular gap between the single centrifugal oxidant nozzle 22 and the fuel nozzle 11.
The flow resistance characteristics of the single centrifugal oxidizer nozzle and the fuel nozzle are obtained by measuring the flow rates at the inlet nozzle A and the inlet nozzle C and the pressures at the pressure measuring nozzle A18 and the pressure measuring nozzle C27, and the characteristics of the atomized particle size, the spray cone angle and the like are obtained by measuring the spray states at the outlets of the single centrifugal oxidizer nozzle and the fuel nozzle, so that the test of the nozzles is completed.
And mode C:
during testing, the inlet nozzle A1 is connected with an oxidant supply pipeline, the inlet nozzle C3 is connected with a fuel supply pipeline, and the pressure measuring filler neck 18 and the pressure measuring filler neck C27 are respectively provided with a corresponding pressure sensor.
The oxidant is injected through inlet nozzle a1, rectangular slots in the support ring 24, internal bores in the restrictor ring 25, axial through-holes in the straight oxidant nozzle 23. Fuel is injected through inlet nozzle C3, the annular gap between the straight oxidant nozzle 23 and the fuel nozzle 11.
The flow resistance characteristics of the direct-flow oxidant nozzle and the fuel nozzle are obtained by measuring the flow rate of the inlet nozzle A and the inlet nozzle C and the pressure of the pressure measuring nozzle A18 and the pressure measuring nozzle C27, and the characteristics of atomized particle size, spray cone angle and the like are obtained by measuring the spraying states of the direct-flow oxidant nozzle and the fuel nozzle, so that the test of the nozzle is completed.
The utility model discloses can measure simultaneously to two tunnel oxidants, fuel all the way, can satisfy the experimental requirement of different grade type nozzles such as coaxial direct current, coaxial centrifugation, possess certain nozzle length adaptability, possess the nozzle simultaneously and change the advantage convenient, simple structure, maneuverability are strong.
The details of the present invention not described in detail in the specification are well known to those skilled in the art.
Claims (10)
1. The utility model provides a multi-functional removable nozzle test device that trades, the inside axial of two centrifugal oxidant nozzles is opened has the axial through hole that the oxidant flows, evenly open along circumference on the lateral wall have with the tangent first tangential hole A of axial through hole and second tangential hole B, fuel nozzle axial is opened has the axial through hole that the fuel flows, evenly opens along circumference on the lateral wall have radial hole or rather than the tangent tangential hole of axial through hole, its characterized in that: the pressure measuring device comprises an inlet pipe nozzle A (1), an inlet pipe nozzle B (2), an inlet pipe nozzle C (3), an upper end shell (4), a middle shell (5), a middle partition plate (6), a lower end shell (7), a sealing cover (8), a fastening threaded column (9), a sealing column (13), a pressure measuring pipe connecting nozzle A (18), a pressure measuring pipe connecting nozzle B (26) and a pressure measuring pipe connecting nozzle C (27);
the inlet pipe nozzle A (1), the upper end shell (4) and the pressure measuring pipe nozzle A (18) are welded to form an upper end shell assembly; the inlet pipe nozzle B (2), the middle shell (5) and the pressure measuring pipe nozzle B (26) are welded to form a middle shell assembly; the inlet pipe nozzle C (3), the lower end shell (7) and the pressure measuring pipe nozzle C (27) are welded to form a lower end shell assembly; the double-centrifugal oxidant nozzle (10) penetrates through a through hole in the lower end face of the upper end shell (4) and is in clearance fit with the through hole in the lower end face of the upper end shell (4), the middle shell assembly and the middle partition plate (6) are sequentially placed below the upper end shell assembly, the middle partition plate (6) is in clearance fit with the double-centrifugal oxidant nozzle (10), the fuel nozzle (11) is sleeved outside the outlet end of the double-centrifugal oxidant nozzle (10), the lower end shell assembly is located below the middle partition plate (6), and the lower end face of the upper end shell (4) is fixedly connected with the upper end face of the lower end shell (7) through bolts; the inlet end of the double-centrifugal oxidant nozzle (10) is provided with a sealing column (13), the fastening threaded column (9) penetrates through the upper end shell (4) and then compresses the sealing column (13), and the fastening threaded column (9) is in threaded connection with the upper end shell (4); the sealing cover (8) is positioned above the upper end shell (4) and is connected with the fastening threaded column (9) through threads;
sealing rings are arranged between the sealing cover (8) and the upper end face of the upper end shell (4), between the double centrifugal oxidant nozzle (10) and the lower end face of the upper end shell (4), between the double centrifugal oxidant nozzle (10) and the middle partition plate (6), between the lower end face of the upper end shell (4) and the middle shell (5), between the middle shell (5) and the middle partition plate (6), between the middle partition plate (6) and the upper end face of the lower end shell (7), and between the lower end face of the lower end shell (7) and the fuel nozzle (11);
the first tangential hole A is located in the upper end shell assembly, the second tangential hole B is located in the middle shell assembly, and the radial hole of the fuel nozzle or the tangential hole tangent to the axial through hole of the fuel nozzle is located in the lower end shell assembly.
2. A multifunctional replaceable nozzle testing device according to claim 1, wherein: the inner diameter of a through hole at the joint of the double centrifugal oxidant nozzles (10) and the lower end face of the upper end shell (4) is larger than that of a through hole at the joint of the middle partition plate (6) and the double centrifugal oxidant nozzles (10).
3. A multi-functional replaceable nozzle testing device as claimed in claim 2, wherein: and double sealing rings are adopted between the double centrifugal oxidant nozzles (10) and the lower end face of the upper end shell (4) and between the double centrifugal oxidant nozzles (10) and the middle partition plate (6) for sealing.
4. The utility model provides a multi-functional removable nozzle test device that trades, the inside axial of single centrifugal oxidant nozzle is opened has the axial through hole that the oxidant flows, evenly open along circumference on the lateral wall have with the tangent tangential hole C of axial through hole, fuel nozzle axial is opened has the axial through hole that the fuel flows, evenly opens along circumference on the lateral wall have radial hole or rather than the tangent tangential hole of axial through hole, its characterized in that: comprises an inlet pipe nozzle A (1), an inlet pipe nozzle C (3), an upper end shell (4), a lower end shell (7), a sealing cover (8), a fastening threaded column (9), a sealing column (13), a pressure measuring pipe nozzle A (18) and a pressure measuring pipe nozzle C (27);
the inlet pipe nozzle A (1), the upper end shell (4) and the pressure measuring pipe nozzle A (18) are welded to form an upper end shell assembly; the inlet pipe nozzle C (3), the lower end shell (7) and the pressure measuring pipe nozzle C (27) are welded to form a lower end shell assembly; the single centrifugal oxidant nozzle (22) penetrates through a through hole in the lower end face of the upper end shell (4) and is in clearance fit with the through hole in the lower end face of the upper end shell (4), the fuel nozzle (11) is sleeved outside the outlet end of the single centrifugal oxidant nozzle (22), the lower end shell assembly is located below the upper end shell (4), and the lower end face of the upper end shell (4) is fixedly connected with the upper end face of the lower end shell (7) through bolts; the inlet end of the single centrifugal oxidant nozzle (22) is provided with a sealing column (13), the fastening threaded column (9) penetrates through the upper end shell (4) and then compresses the sealing column (13), and the fastening threaded column (9) is in threaded connection with the upper end shell (4); the sealing cover (8) is positioned above the upper end shell (4) and is connected with the fastening threaded column (9) through threads;
sealing rings are respectively arranged between the sealing cover (8) and the upper end face of the upper end shell (4), between the single-centrifugal oxidant nozzle (22) and the lower end face of the upper end shell (4), between the lower end face of the upper end shell (4) and the upper end face of the lower end shell (7) and between the lower end face of the lower end shell (7) and the fuel nozzle (11);
the tangential hole C is positioned in the upper end shell assembly, and the radial hole of the fuel nozzle or the tangential hole tangent to the axial through hole of the fuel nozzle is positioned in the lower end shell assembly.
5. The multifunctional replaceable nozzle testing device of claim 4, wherein: the single centrifugal oxidant nozzle (22) and the lower end face of the upper end shell (4) are sealed by a double-channel sealing ring.
6. The utility model provides a multi-functional removable nozzle test device that trades, the inside axial of direct current oxidant nozzle is opened has the axial through hole that the oxidant flows, and fuel nozzle axial is opened has the axial through hole that the fuel flows, evenly opens along circumference on the lateral wall have radial hole or with the tangent tangential hole of its axial through hole, its characterized in that: comprises an inlet pipe nozzle A (1), an inlet pipe nozzle C (3), an upper end shell (4), a lower end shell (7), a support ring (24), a throttling ring (25), a sealing cover (8), a fastening threaded column (9), a pressure measuring pipe connecting nozzle A (18) and a pressure measuring pipe connecting nozzle C (27);
the inlet pipe nozzle A (1), the upper end shell (4) and the pressure measuring pipe nozzle A (18) are welded to form an upper end shell assembly; the inlet pipe nozzle C (3), the lower end shell (7) and the pressure measuring pipe nozzle C (27) are welded to form a lower end shell assembly; the direct-current oxidant nozzle (23) penetrates through a through hole in the lower end face of the upper end shell (4) and is in clearance fit with the through hole in the lower end face of the upper end shell (4), the fuel nozzle (11) is sleeved outside the outlet end of the direct-current oxidant nozzle (23), the lower end shell assembly is located below the upper end shell (4), and the lower end face of the upper end shell (4) is fixedly connected with the upper end face of the lower end shell (7) through bolts; a throttling ring (25) is installed at the inlet end of the direct-current oxidant nozzle (23), a support ring (24) is installed above the throttling ring (25), a fastening threaded column (9) penetrates through the upper end shell (4) and then presses the support ring (24), and the fastening threaded column (9) is in threaded connection with the upper end shell (4); the sealing cover (8) is positioned above the upper end shell (4) and is connected with the fastening threaded column (9) through threads;
sealing rings are respectively arranged between the sealing cover (8) and the upper end face of the upper end shell (4), between the direct current oxidant nozzle (23) and the lower end face of the upper end shell (4), between the lower end face of the upper end shell (4) and the upper end face of the lower end shell (7) and between the lower end face of the lower end shell (7) and the fuel nozzle (11);
the support ring (24) is circumferentially and uniformly perforated, and radial holes of the fuel nozzle or tangential holes tangent to the axial through hole of the fuel nozzle are positioned in the lower end shell assembly.
7. The multifunctional replaceable nozzle testing device of claim 6, wherein: the utility model discloses a throttle valve, including support ring (24), supporting ring (24) one end is opened there is the rectangular channel, the rectangular channel is along the circumferencial direction equipartition, and the total area of rectangular channel is more than 1.5 times of direct current oxidant nozzle (23) axial through hole area, and support ring (24) hole area is more than 3 times of throttle ring (25) hole area.
8. The multifunctional replaceable nozzle testing device of claim 6, wherein: the direct-current oxidant nozzle (23) and the lower end face of the upper end shell (4) are sealed by a double-sealing ring.
9. A multi-functional replaceable nozzle testing device according to claim 1, 4 or 6, characterized in that: the two ends of the fastening threaded column (9) are regular hexagonal prisms, the middle of the fastening threaded column is a threaded column, and the overall dimension of the threaded column is larger than that of the regular hexagonal prisms at the two ends; the heights of the regular hexagonal prisms at the two ends of the fastening threaded column (9) are different, and the height of the high regular hexagonal prism is 1.5-3 times that of the low regular hexagonal prism.
10. A multi-functional replaceable nozzle testing device as claimed in claim 9, wherein: the fastening screw column (9) can be screwed into the upper end shell (4) according to the length of the oxidant nozzle by selecting a high regular hexagonal prism or a low regular hexagonal prism.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921577509.7U CN211008895U (en) | 2019-09-23 | 2019-09-23 | Multifunctional detachable nozzle test device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921577509.7U CN211008895U (en) | 2019-09-23 | 2019-09-23 | Multifunctional detachable nozzle test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110735732A (en) * | 2019-09-23 | 2020-01-31 | 北京航天动力研究所 | multifunctional detachable nozzle test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110735732A (en) * | 2019-09-23 | 2020-01-31 | 北京航天动力研究所 | multifunctional detachable nozzle test device |
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