CN114136650B - Gas-liquid two-phase flow mixing test box device - Google Patents
Gas-liquid two-phase flow mixing test box device Download PDFInfo
- Publication number
- CN114136650B CN114136650B CN202111308687.1A CN202111308687A CN114136650B CN 114136650 B CN114136650 B CN 114136650B CN 202111308687 A CN202111308687 A CN 202111308687A CN 114136650 B CN114136650 B CN 114136650B
- Authority
- CN
- China
- Prior art keywords
- gas
- flange
- resistant
- temperature
- pressure
- 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
- 238000002156 mixing Methods 0.000 title claims abstract description 86
- 238000012360 testing method Methods 0.000 title claims abstract description 31
- 239000007788 liquid Substances 0.000 title claims abstract description 21
- 230000005514 two-phase flow Effects 0.000 title claims abstract description 20
- 230000001105 regulatory effect Effects 0.000 claims abstract description 9
- 238000002347 injection Methods 0.000 claims description 14
- 239000007924 injection Substances 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 14
- 239000011521 glass Substances 0.000 claims description 11
- 238000004880 explosion Methods 0.000 claims description 5
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000010687 lubricating oil Substances 0.000 abstract description 29
- 238000005507 spraying Methods 0.000 abstract description 14
- 239000003921 oil Substances 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 9
- 238000000889 atomisation Methods 0.000 abstract description 8
- 238000003466 welding Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- 102000046255 Type III Sodium-Phosphate Cotransporter Proteins Human genes 0.000 description 2
- 108091006286 Type III sodium-phosphate co-transporters Proteins 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/14—Testing gas-turbine engines or jet-propulsion engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/06—Arrangements of bearings; Lubricating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Testing Of Engines (AREA)
Abstract
The invention belongs to the technical field of aeroengine tests, and relates to a gas-liquid two-phase flow mixing test box device. The mixing box is positioned at the inlet of each oil return stage of the lubricating oil pump and consists of a mixing box main body, a high-temperature lubricating oil atomization spraying part and a high-temperature gas spraying part, the lubricating oil with constant temperature and constant pressure is sent into the high-temperature lubricating oil atomization spraying device at each stage of the pump through the control of a power pump, a pipeline heater, a regulating valve and the like, and the spraying effect relatively close to the actual working condition can be simulated through the effective combination of the lubricating oil nozzle groups.
Description
Technical Field
The invention belongs to the technical field of aeroengine tests, and relates to a gas-liquid two-phase flow mixing test box device capable of completing a gas-liquid two-phase flow mixing test under high-temperature and high-pressure conditions.
Background
In an aircraft lubricating oil system, a lubricating oil pump assembly is one of the core devices thereof. In the past, when carrying out the performance test of lubricating oil pump subassembly, receive the restriction of test equipment ability, often make the lubricating oil pump work under the pure oil state of high temperature. But the actual working conditions are as follows: into the return stage of the lubricating pump often a high temperature gas-liquid two-phase flow. The pure oil condition is used for testing, the actual working condition cannot be simulated, and the applicability of test data is reduced.
To achieve the purpose of generating a gas-liquid two-phase flow at the inlet of the lubricating oil pump, the oil-gas mixing system is a core component. The conventional blending tank structure has the following problems: 1. the lubricating oil nozzle is of a fixed structure, the spraying effect which is close to the actual working condition is difficult to generate through one nozzle, the process of replacing the nozzle is complex, the upper cover of the blending box is required to be removed, the blending box can be replaced, and the test efficiency is low. 2. The gas injection system is original, high-pressure gas is directly injected into the blending tank through the tank wall, a gas diffusion structure is not available, and full blending with lubricating oil cannot be achieved. 3. The blending box is of an all-metal structure, and the oil accumulation condition in the box cannot be fully observed.
Disclosure of Invention
The purpose of the invention is that: the gas-liquid two-phase flow mixing test box device solves the problem that the performance test condition of the lubricating oil pump is inconsistent with the actual working condition, and therefore the applicability of the test result is improved.
In order to solve the technical problem, the technical scheme of the invention is as follows:
a gas-liquid two-phase flow blending test box device comprising: the mixing box comprises a nozzle mounting plate 1, a mixing box top flange 3, a high-temperature-resistant explosion-proof glass cover 4, a screw connecting assembly 5, a mixing box bottom flange 6, a bottom head 7, an air inlet pipe assembly 8, an annular air injection pipe 9, a converging outlet pipe 10, a safety valve 11 and an atomizing nozzle 13, wherein the mixing box top flange 3, the high-temperature-resistant explosion-proof glass cover 4, the mixing box bottom flange 6 and the bottom head 7 are connected into a main body of the mixing box through a plurality of screw connecting assemblies 5 and a high-temperature-resistant sealing structure; the nozzle mounting plate 1 is fixed on the upper portion of blending tank top flange 3, the left side of nozzle mounting plate 1 is provided with horizontal blind hole, nozzle mounting plate 1 lower surface is provided with a plurality of nozzle mounting holes, a plurality of atomizing nozzles 13 are fixed in the nozzle mounting hole, intake pipe assembly 8 inserts the blending tank inside and with bottom head 7 welding, intake pipe assembly 8 includes two hollow gas outlets, the lower part symmetry trompil of annular jet pipe 9 and welding are on the two hollow gas outlets of intake pipe assembly 8, bottom head 7 below is provided with the opening, the vertical welding of confluence outlet pipe 10 is on the below opening of bottom head 7, relief valve 11 sets up on blending tank top flange 3, prevent that the case internal pressure from being too high and producing explosion hidden danger.
Further, a plurality of nozzle mounting holes on the nozzle mounting plate 1 are distributed in a straight line.
Further, the annular air injection pipe 9 is formed by welding two DN25 stainless steel semicircle pipe structures formed by pipe bending machines.
Further, a plurality of air injection holes are uniformly distributed on the annular air injection pipe.
Further, the hole depth direction of the gas injection holes is perpendicular to the wall surface of the pipe and is positioned at 1/2 of the inner side of the upper surface of the annular gas injection pipe 9 in the horizontal direction.
Further, the high temperature resistant explosion-proof glass cover 4 is resistant to high temperature 1050 ℃ and pressure resistance of 2MPa.
Further, the annular gas lance 9 is located at three-fifths of the height of the main body of the blending tank.
Further, a manual pressure regulating valve 12 provided on the blending tank top flange 3 is included to manually and rapidly control the pressure variation in the tank.
Technical effects of the invention
The gas-liquid two-phase flow mixing test box device can simulate the actual working conditions of the lubricating oil and the inside of the high-temperature gas aeroengine to the maximum extent; the debugging time and the changing time of different products are reduced, and the working efficiency is improved; the whole blending process is easy to observe, and the abnormal condition in the test process can be found conveniently in the first time.
Drawings
FIG. 1 is a schematic diagram of a gas-liquid two-phase flow blending test chamber device of the present invention;
FIG. 2 is a cross-sectional view of the gas-liquid two-phase flow blending test chamber device of the present invention;
FIG. 3 is a schematic diagram of the operation of the gas-liquid two-phase flow blending test chamber device of the present invention;
FIG. 4 is a schematic view of the nozzle mounting plate of the gas-liquid two-phase flow blending test chamber device of the present invention;
FIG. 5 is a schematic view of the annular gas lance structure of the gas-liquid two-phase flow blending test chamber device of the present invention;
FIG. 6 is a schematic view of the high temperature resistant explosion proof glass cover of the gas-liquid two-phase flow blending test box device of the invention;
FIG. 7 is a schematic diagram of the gas lance configuration of the gas-liquid two-phase flow blending test chamber apparatus of the present invention;
The high-temperature-resistant high-pressure-resistant flame-retardant glass mixing tank comprises a nozzle mounting plate 1, a nozzle base 2, a mixing tank top flange 3, a high-temperature-resistant flame-retardant glass cover 4, a screw connecting assembly 5, a mixing tank bottom flange 6, a bottom sealing head 7, an air inlet pipe assembly 8, an annular air jet pipe 9, a converging outlet pipe 10, a safety valve 11, a manual pressure regulating valve 12 and an atomizing nozzle 13.
Detailed Description
According to the structure of the blending test box imitating the gas-liquid two-phase flow in the aeroengine casing, which is disclosed by the invention, the lubricating oil with fixed temperature and fixed pressure is sent into the high-temperature lubricating oil atomization spraying device at each stage of the pump through the control of the power pump, the pipeline heater, the regulating valve and the like, and the spraying effect relatively close to the actual working condition can be simulated through the effective combination of the lubricating oil nozzle groups. The mixing box is composed of three parts: the blending box main body, the high-temperature lubricating oil atomization spraying device and the high-temperature gas spraying device.
The following detailed description is provided with reference to the accompanying drawings.
The device has the composition and the connection structure shown in figures 1 and 2, and comprises a blending box top flange 3, a high-temperature-resistant explosion-proof glass cover 4, a blending box bottom flange 6 and a bottom seal head 7, and a main body of the blending box is formed by a plurality of screw connecting components 5 and a high-temperature-resistant sealing structure; the nozzle mounting plate 1 and the nozzle base 2 are mounted on the upper part of the flange 3 at the top of the blending box through a plurality of hexagon socket head cap bolts and high-temperature-resistant sealing gaskets, and a plurality of atomizing nozzles 13 are fastened on the lower part of the nozzle mounting plate 1 through a thread structure, so that a high-temperature lubricating oil atomizing and spraying device is formed together; after the air inlet pipe assembly 8 is inserted into a proper position in the mixing box, the air inlet pipe assembly and the bottom sealing head 7 are connected into a whole through welding, and after holes are formed in the two ends of the annular air ejector 9, the air inlet pipe assembly 8 is symmetrically welded on two hollow air outlets of the air inlet pipe assembly to form the high-temperature gas injection device. The mixed gas and liquid flows in the mixing box enter the inlet of the aero-engine lubricating oil pump through the mixed outflow pipe 10. The safety valve 11 is used for ensuring that the pressure in the tank is not too high to cause explosion hidden trouble, and the manual pressure regulating valve 12 is used for manually and rapidly controlling the pressure change in the tank.
The lower end cover of the blending box is formed by a method of finish machining after full welding of the flange 6 and the bottom head 7 at the bottom of the blending box, and a lower end cover structure of the blending box is formed after welding with the converging outlet pipe 10; and then the main body of the blending box is formed by the main body, the top flange 3 of the blending box, the high-temperature-resistant explosion-proof glass cover 4, the 12 screw rod connecting assemblies 5 with the M22 being 2.5 and the high-temperature-resistant sealing gasket made of polytetrafluoroethylene materials. The blending box body is used for accommodating and discharging the blended gas-liquid two-phase flow and observing the blending process.
The nozzle base 2 has the function of providing reliable threaded connection hole sites for the nozzle mounting plate 1 on the premise of not reducing the strength of the blending box top flange 3, the nozzle base 2 is welded on the upper part of the blending box top flange 3, the nozzle mounting plate 1 is fastened with the nozzle base 2 through a plurality of inner hexagon bolts and high-temperature-resistant sealing gaskets, and a plurality of atomizing nozzles 13 are fastened on the lower part of the nozzle mounting plate 1 through NPT1/4 threaded structures, so that the high-temperature lubricating oil atomizing spraying device is formed together. The number of mounting positions of the nozzle mounting plates 1 is 7, and when a certain seat is not provided with a nozzle, the nozzle mounting plates can be plugged by bolts. The nozzle is selected according to the following principle: firstly, selecting a nozzle with a good atomization effect; and secondly, reasonably selecting the inner diameter of an opening of the nozzle according to the flow of the lubricating oil, so that the pressure before the nozzle and the flow flowing into the blending box simultaneously meet the test requirement.
In the process of debugging the nozzle combination, the nozzle and the mounting plate can be taken out completely by only removing 6 inner hexagon screws on the nozzle mounting plate, and the nozzle mounting position on the mounting plate adopts uniform screw specifications, so that the nozzle is very convenient to replace.
The high-temperature lubricating oil atomization spraying device has the function of enabling the front pressure of the nozzle and the flow flowing into the blending box to meet the test requirement simultaneously by reasonably configuring the combination of the atomization nozzles.
Fig. 7 shows an air inlet pipe assembly 8, which is a one-to-many hollow pipeline structure, and has an air inlet end and a plurality of air outlet ends, as shown in fig. 7, the lower left port is the air inlet end, the other two ports are the air outlet ends, the air outlet ends penetrate through the bottom sealing head 7, and are inserted into a proper position inside the blending box, and then are connected with the bottom sealing head 7 into a whole through welding, and after holes are formed in the two ends of the annular air injection pipe 9, the air injection pipe assembly is symmetrically welded on the two hollow air outlets of the air inlet pipe assembly 8 to form a high-temperature gas injection device.
Further, the annular gas nozzles 9 are located at about three-fifths of the height of the main body of the blending tank, and the specific height is referred to the injection angle of the nozzles and the arrangement order of the nozzles, so as to achieve the optimal blending effect. The intake pipe assembly 8 may also adopt a structure in which a plurality of branches are symmetrically arranged according to the needs of different intake amounts.
Through the unique annular jet-propelled pipe design that admits air in both ends, overcome traditional jet-propelled pipe and spouted the tolerance and increase along with the air supply distance and decay's problem, make the gas injection process more even, the oil gas mixes the effect more abundant.
The safety valve 11 is used for ensuring that the pressure in the tank is not too high to cause explosion hidden trouble, and the manual pressure regulating valve 12 is used for manually and rapidly controlling the pressure change in the tank.
The pressure-resistant index of the blending box is 0.8MPa, the temperature index is 250 ℃, water at normal temperature and 1.2MPa is used for maintaining pressure for 30min after the first assembly, hot oil at 220 ℃ is used for pressurizing 1.2MPa again if abnormal leakage does not exist, and the pressure is maintained for 30min, so that the reliability of the blending box is ensured, and whether abnormal leakage exists is checked. The blending box passing the warm-pressing test can be used.
As shown in fig. 3, the blending tank works as follows:
① The tested product works in a pure oil state, reaches the rotating speed required to be tested and works stably;
② Fully opening an oil way inlet regulating valve of the blending tank to generate maximum lubricating oil flow;
③ Switching an inlet flow switching valve to connect the product inlet with the mixed flow outlet of the blending tank, wherein the lubricating oil in the blending tank starts to enter the product inlet;
④ Gradually opening a gas path inlet regulating valve of the blending tank to enable gas to enter the blending tank;
⑤ The flow control devices of the oil way and the gas way respectively adjust the flow of the lubricating oil and the pressure in the tank to be near the target value;
⑥ The temperatures of the lubricating oil and the gas are stabilized near the target value through respective temperature closed-loop control devices of the oil circuit and the gas circuit;
⑦ And fine-tuning each parameter until the state required by the test is reached.
FIG. 4 shows the nozzle mounting plate with high temperature oil entering from the left side of the part through the inlet fitting; the nozzles with various specifications are connected with the mounting plate through seven NPT1/4 thread structures, and the lubricating oil atomization spraying effect capable of simulating the internal condition of the aeroengine to the greatest extent is generated through different nozzle combinations.
FIG. 5 shows an annular gas jet pipe formed by welding two DN25 stainless steel semicircular pipe structures formed by pipe bending devices, test gas is injected into the annular gas jet pipe through two symmetrical pipelines, and 20 annular gas jet pipes are uniformly distributed with the diameter of 20 annular gas jet pipesThe hole depth direction is perpendicular to the normal plane and is positioned at 1/2 position of the inner side of the upper surface of the annular air jet pipe, and the two ends of the annular air jet pipe are symmetrical, so that the phenomenon of uneven air jet is effectively avoided.
If the gas outlet quantity can not meet the requirements of specific products, the quantity and the aperture of the gas spraying holes can be properly adjusted; if the two intake ports cannot meet the demand for the intake air amount, a sufficient number of intake ports may be opened at symmetrical positions, but the number of intake ports is at least 2.
FIG. 6 shows a high temperature resistant explosion-proof glass cover, the upper temperature limit is 1050 ℃, the pressure resistance is 2MPa, and the intuitiveness of the internal condition of the blending box is effectively improved on the premise of ensuring the safety of a test.
The advantage of this blending case is:
① The actual working condition inside the engine can be simulated to the greatest extent.
② The high-temperature gas can be fully mixed with the atomized lubricating oil, the oil-gas mixing proportion is improved, and the mixing effect is ensured.
③ The mixing condition in the box can be conveniently observed.
Claims (1)
1. A gas-liquid two-phase flow blending test chamber device, comprising: the mixing box comprises a nozzle mounting plate (1), a mixing box top flange (3), a high-temperature-resistant explosion-proof glass cover (4), a screw connecting assembly (5), a mixing box bottom flange (6), a bottom seal head (7), an air inlet pipe assembly (8), an annular air injection pipe (9), a converging outlet pipe (10), a safety valve (11) and an atomizing nozzle (13), wherein the mixing box top flange (3), the high-temperature-resistant explosion-proof glass cover (4), the mixing box bottom flange (6) and the bottom seal head (7) are connected into a main body of the mixing box through a plurality of screw connecting assemblies (5) and a high-temperature-resistant sealing structure; the nozzle mounting plate (1) is fixed at the upper part of the flange (3) at the top of the blending tank, a transverse blind hole is formed in the left side of the nozzle mounting plate (1), a plurality of nozzle mounting holes are formed in the lower surface of the nozzle mounting plate (1), a plurality of atomizing nozzles (13) are fixed in the nozzle mounting holes, the air inlet pipe assembly (8) is inserted into the blending tank and welded with the bottom sealing head (7), the air inlet pipe assembly (8) comprises two hollow air outlets, the lower part of the annular air jet pipe (9) is symmetrically perforated and welded on the two hollow air outlets of the air inlet pipe assembly (8), an opening is formed below the bottom sealing head (7), the converging outlet pipe (10) is vertically welded on the lower opening of the bottom sealing head (7), the safety valve (11) is arranged on the flange (3) at the top of the blending tank to prevent explosion caused by overhigh pressure in the tank, the annular air jet pipe (9) is in a straight line, the annular air jet pipe (9) is welded by two DN25 stainless steel semicircle pipe structures formed by forming two air inlet pipes, the plurality of holes are uniformly distributed on the annular air jet pipe, the annular air jet pipe (9) is positioned at the inner side of the sealing head (2) of the flange (2) in the vertical direction, the air jet pipe wall of the annular air jet pipe (9) is positioned at the three-pressure-resistant position of the pressure regulating valve (2) and the top of the pressure-resistant valve (2) is positioned at the vertical position of the top of the flange (2) and the top of the pressure-resistant valve (2) and the pressure-resistant valve (2) is arranged at the top-resistant position, for manual rapid control of pressure changes in the tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111308687.1A CN114136650B (en) | 2021-11-05 | 2021-11-05 | Gas-liquid two-phase flow mixing test box device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111308687.1A CN114136650B (en) | 2021-11-05 | 2021-11-05 | Gas-liquid two-phase flow mixing test box device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114136650A CN114136650A (en) | 2022-03-04 |
| CN114136650B true CN114136650B (en) | 2024-09-13 |
Family
ID=80393012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111308687.1A Active CN114136650B (en) | 2021-11-05 | 2021-11-05 | Gas-liquid two-phase flow mixing test box device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114136650B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202590664U (en) * | 2012-03-31 | 2012-12-12 | 中国航空工业集团公司沈阳发动机设计研究所 | Oil-gas mixing device |
| CN104634537A (en) * | 2015-01-09 | 2015-05-20 | 北京航空航天大学 | Visual experiment device suitable for low-temperature gas-liquid two-phase mixing |
| CN205551442U (en) * | 2016-04-13 | 2016-09-07 | 南京云开合金有限公司 | Magnesium liquid protection device is used in casting |
| CN111412086A (en) * | 2020-05-21 | 2020-07-14 | 安徽九州云箭航天技术有限公司 | Weldless injector for liquid rocket engine |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200982216Y (en) * | 2006-12-01 | 2007-11-28 | 中国航空动力机械研究所 | Oil and gas mixer |
| CN202146745U (en) * | 2011-06-21 | 2012-02-22 | 宝钢集团新疆八一钢铁有限公司 | Pneumatic liquid medicine stirring device |
| CN104819824B (en) * | 2014-06-24 | 2017-09-26 | 华北水利水电大学 | Self inhaling injection stream flow behavior integrated testing apparatus system under water |
| CN106290978B (en) * | 2016-08-25 | 2019-05-24 | 北京航空航天大学 | A kind of transverse injection agitation blending liquid trace displaying particle generator |
| CN207709053U (en) * | 2017-12-18 | 2018-08-10 | 宁国久天化工有限公司 | A kind of logical oxygen reaction reaction kettle of phosphorus oxychloride membrane type |
| CN214440338U (en) * | 2021-02-08 | 2021-10-22 | 华北电力大学（保定） | Combined nozzle |
-
2021
- 2021-11-05 CN CN202111308687.1A patent/CN114136650B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202590664U (en) * | 2012-03-31 | 2012-12-12 | 中国航空工业集团公司沈阳发动机设计研究所 | Oil-gas mixing device |
| CN104634537A (en) * | 2015-01-09 | 2015-05-20 | 北京航空航天大学 | Visual experiment device suitable for low-temperature gas-liquid two-phase mixing |
| CN205551442U (en) * | 2016-04-13 | 2016-09-07 | 南京云开合金有限公司 | Magnesium liquid protection device is used in casting |
| CN111412086A (en) * | 2020-05-21 | 2020-07-14 | 安徽九州云箭航天技术有限公司 | Weldless injector for liquid rocket engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114136650A (en) | 2022-03-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108037035B (en) | Thin-wall pipe fitting near-service environment performance testing device for simulating turbine blade air film hole | |
| CN108827638B (en) | Aeroengine combustor part water swallowing test device and method | |
| CN109781422B (en) | Wide-range simulated incoming flow heating device | |
| US11865389B2 (en) | Vehicle-mounted large-flow fire-fighting foam fluid mixing system | |
| CN110631626B (en) | Test device and method for simulating transformer overflowing fire and spraying fire | |
| CN109611209A (en) | A kind of high-temperature fuel gas generating means of anti-string chamber | |
| CN114136650B (en) | Gas-liquid two-phase flow mixing test box device | |
| CN111055051A (en) | Device and method for debugging flow of multi-nozzle welding assembly | |
| CN106370453A (en) | Leakage blockage experiment system for LNG (liquefied natural gas)/NG (natural gas) pipeline leakage | |
| CN207095861U (en) | A kind of high mould experiment gas diversion device of engine | |
| CN203478234U (en) | Quick-start ground ultra-large three-component heater | |
| CN115949531B (en) | Wide range continuous adjustable injector | |
| CN201702059U (en) | Atomization oil spraying device | |
| CN206071752U (en) | A kind of combustion gas direct-injection spraying system | |
| CN113959700B (en) | Device and method for testing performance of cooling liquid jet flow equally-dividing component of multi-strand grouping jet flow | |
| CN202628315U (en) | High-pressure jet mixer of natural gas engine | |
| CN214793798U (en) | Continuous variable incoming flow direct connection test system for scramjet and RBCC engine | |
| CN212275231U (en) | Gas turbine fuel nozzle and blade integrated gas flow detection device | |
| CN111896237A (en) | Gas turbine fuel nozzle and blade integrated gas flow detection device | |
| CN207649906U (en) | A kind of fuel heater and transverse jet atomization test system | |
| CN201925976U (en) | High-low carbon complementary binary liquid fuel self-spray mixed gas heating furnace | |
| CN101195777B (en) | Natural gas humidification steam generation mixer | |
| CN216284259U (en) | Aeroengine oil circuit test fixture | |
| CN221014271U (en) | Compressed air foam fire extinguishing device | |
| CN104912696B (en) | A kind of gas electricity unit blending LNG fuel apparatus and method |
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 |