CN212341131U - Experimental device for measuring single oil drop combustion temperature and flame structure under low-pressure condition - Google Patents
Experimental device for measuring single oil drop combustion temperature and flame structure under low-pressure condition Download PDFInfo
- Publication number
- CN212341131U CN212341131U CN202020832258.9U CN202020832258U CN212341131U CN 212341131 U CN212341131 U CN 212341131U CN 202020832258 U CN202020832258 U CN 202020832258U CN 212341131 U CN212341131 U CN 212341131U
- Authority
- CN
- China
- Prior art keywords
- low
- pressure cavity
- sealing cover
- cover
- platform
- 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
Landscapes
- Testing Of Engines (AREA)
Abstract
The utility model relates to a burning experiment technique aims at providing a low pressure condition and measures experimental apparatus of single oil drop burning temperature and flame structure. The device comprises a low-pressure cavity arranged on a movable supporting frame; the bottom sealing cover of the low-pressure cavity is matched with the bottom opening through a flange surface; the side surface is provided with an observation window and an air exhaust opening, and the top cover is provided with an oil drop injection opening; the bottom sealing cover is movably connected with a platform panel of the frame platform through a vertically arranged central threaded column and a lifting support column; a hand wheel is arranged at the lower end part of the central threaded column; the fixing piece on the inner surface of the bottom cover is provided with an electric heating wire and a thermocouple, and is provided with a plurality of joints. The utility model can be conveniently and rapidly moved and fixed; the lifting of the low-pressure cavity is adjusted by using a hand wheel, so that continuous measurement is realized under the condition that the position of an optical measurement system is not changed, and the stability and the experimental convenience of the optical measurement system are obviously improved; the expansibility is strong, and the maintenance and the replacement of the internal module are convenient. The air tightness is good, and the experimental repeatability is good.
Description
Technical Field
The utility model belongs to the technical field of the burning experiment, a low pressure condition is measured single oil drop combustion temperature and flame structure's experimental apparatus is related to.
Background
Under the condition of high altitude and low pressure, the working pressure of the combustion chamber is reduced, the backflow area of the flame stabilizer is reduced, the backflow amount is reduced, the turbulence intensity and the Reynolds stress are reduced, the turbulence scale is enlarged, the average diameter of oil droplets is increased, the chemical reaction of combustion is extremely unfavorable, the ignition performance and the flame stability are poor, and the combustion efficiency is remarkably reduced. The deterioration of the combustion performance greatly reduces the thrust and specific impulse performance of the engine, and even fails to meet the power demand of the aircraft. Therefore, the basic combustion characteristic of the single-oil-drop fuel in the low-pressure environment is researched, the two-phase combustion mechanism of the single-oil-drop fuel in the low-pressure state is disclosed, and the method has important significance for improving the flame stability of a combustion chamber in the high-altitude low-pressure environment, ensuring the stable work of an aircraft and the like.
The low-pressure cavity is an important component in a single-oil-drop combustion experiment and is directly related to the precision of the low-pressure experiment and the success of the experiment. The common structural form of the current single drop combustion experimental device is as follows: the low-pressure cavity is fixed on a certain platform and cannot move, the top cover of the whole cavity needs to be disassembled and taken down to hang liquid drops at one end of a quartz wire in the cavity, ignition is carried out through immovable electric sparks, and the cavity is only used as a pressure control device and is not provided with an optical window.
The device has the problems that (1) the low-pressure cavity has poor air tightness and cannot carry out a combustion experiment under lower pressure. (2) The cavity expansibility of the low-pressure cavity is not enough, and ignition and the atmosphere in the cavity cannot be accurately controlled. (3) The low pressure cavity is difficult to disassemble, and the maintenance and the replacement of the internal module can not be carried out quickly and efficiently. (4) The low-pressure cavity has no optical window, most of the low-pressure cavity depends on the traditional contact measurement means, the measurement object is damaged when the flame structure and combustion products are analyzed, and the combustion characteristics such as the oil drop flame structure and the distribution of combustion intermediate products are difficult to accurately measure.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome not enough among the prior art, provide an experimental apparatus of single oil drop combustion temperature and flame structure is measured to low pressure condition.
For solving the technical problem, the utility model discloses a solution is:
the experimental device for measuring the combustion temperature and the flame structure of the single oil drop under the low-pressure condition comprises a low-pressure cavity for carrying out a single oil drop combustion test; the device comprises a movable supporting frame, a movable supporting frame and a movable supporting frame, wherein the movable supporting frame consists of a frame platform and a vertical support, and a platform panel is fixedly arranged on the surface of the frame platform; an electric crane is fixedly arranged in the frame platform;
the low-pressure cavity is in a cubic shape with an opening at the bottom, and the bottom sealing cover is matched with the opening at the bottom through a flange surface and fixed by bolts; an observation window and an air extraction opening are arranged on the side surface of the low-pressure cavity, and an oil drop injection opening is arranged on the top cover; the top cover is also provided with at least two hangers, and the steel wire ropes are respectively connected with the hangers and the electric crane through pulleys fixed on the vertical support, so that the low-pressure cavity is suspended above the frame platform;
the bottom sealing cover is arranged opposite to the platform panel of the frame platform and is movably connected with the lifting support column through a vertically arranged central threaded column; a hand wheel is arranged at the lower end part of the central threaded column and used for adjusting the displacement of the low-pressure cavity in the vertical direction; a horizontal displacement base is fixedly arranged on the inner side surface of the bottom sealing cover, an air cylinder is arranged on the horizontal displacement base, and an electric heating wire is arranged at the top of the air cylinder; two optical supporting rods are fixedly arranged on the inner side surface of the bottom sealing cover, a platform with a groove is arranged on each optical supporting rod, the two groove platforms are arranged at an included angle of 60 degrees, and a corundum tube is fixedly arranged in each groove; one electrode of a thermocouple is respectively arranged in each corundum tube in a penetrating way, and the end parts of the two electrodes of the thermocouple are jointed to form a liquid drop supporting point and a temperature measuring point; the electric heating wire and the thermocouple are oppositely arranged and keep a distance; the bottom sealing cover is also provided with a plurality of joints, and the electric heating wires and the thermocouples are respectively connected to an upper computer through respective cables and joints.
As an improvement, a plurality of universal wheels with locking and fixing mechanisms are arranged at the bottom of the frame platform.
As an improvement, the connectors on the bottom cover comprise a plurality of gas/liquid pipeline connectors and a plurality of electric/signal connectors; the gas/liquid pipeline joint is a clamping sleeve penetrating through the bottom sealing cover and is fixed and sealed in a welding mode; the electric/signal connector is a hollow threaded pipe penetrating through the bottom sealing cover, a PVC sleeve is wrapped on the outer side of the threaded pipe for insulation, and the cable is fixed by utilizing the threaded connection of a nut and the threaded pipe;
the air supply circuit and the pressure relief circuit of the cylinder are respectively connected with an external pipeline through air/liquid joints; the temperature signal collector, the ignition power supply, the cylinder controller and the time delay relay which are arranged outside the low-pressure cavity are respectively connected with the electric/signal connectors positioned on the outer side surface of the bottom sealing cover through cables, and the electric heating wire and the thermocouple are respectively connected with the electric/signal connectors positioned on the inner side surface of the bottom sealing cover through cables.
As an improvement, a plurality of screw holes are distributed on the inner side surface of the bottom sealing cover, and the horizontal displacement base is fixed on the bottom sealing cover through screws; a plurality of screw holes are formed in the horizontal displacement base, and the air cylinder is fixed on the horizontal displacement base through screws.
As a modification, the suction port is connected to a vacuum pump through a pneumatic joint and a pipeline.
As an improvement, a pressure gauge is arranged on a top cover of the low-pressure cavity, and the pressure gauge is connected with the top cover through threads and sealed.
As an improvement, a sealing ring is arranged between the bottom sealing cover and a flange surface of the bottom opening of the low-pressure cavity.
As an improvement, the observation window comprises a gland and quartz glass, the side openings of the gland and the low-pressure cavity are respectively provided with a flange surface with a matched concave-convex structure, and a sealing ring is arranged between the gland and the flange surface and fixed through bolts.
As an improvement, the oil instillation inlet is provided with a vacuum flange for sealing.
As an improvement, the lifting support comprises a fixed support fixed on the lower side of the bottom sealing cover and a sleeve penetrating through the platform panel, and the fixed support is movably sleeved in the sleeve; the center position of platform panel sets up the screw hole, center thread post installs in the screw hole and has rather than the external screw thread of cooperation.
Compared with the prior art, the beneficial effects of the utility model are that:
1. through the universal wheel of taking locking function, experimental apparatus can convenient and fast ground remove and fix, is convenient for carry out laser position matching and optical measurement under the unable circumstances that removes of laser instrument.
2. Through the central threaded column and the lifting support column which are vertically arranged, the lifting of the low-pressure cavity can be adjusted by using a hand wheel, the continuous measurement of the concentration changes of oil drop flame free radicals and combustion intermediates at different height positions is facilitated under the condition that the position of the optical measurement system is not changed, and the stability and the experimental convenience of the optical measurement system are obviously improved.
3. The low-pressure cavity has strong expansibility, can be connected with a plurality of gas/liquid circuits and electric/signal lines, and can carry out multi-parameter measurement of oil drop combustion.
4. The interior of the low-pressure cavity has strong universality, and the bottom platform can fix the ignition component, the supporting component and the optical device through bolts.
5. The cavity can be rapidly disassembled and assembled, and the maintenance and replacement of the internal module are convenient.
6. The air tightness is good, and the repeatability of the experiment is good.
Drawings
FIG. 1 is a three-dimensional view of an experimental set-up;
FIG. 2 is a cross-sectional view of the experimental set-up;
FIG. 3 is a front view of the experimental set-up;
FIG. 4 is a top view of the experimental set-up;
FIG. 5 is a schematic view of the assembly of the components of the upper surface of the bottom cover.
Reference numerals in the drawings: the device comprises a universal wheel 1, a frame platform 2, a lifting support 3, a hand wheel 4, an electric/signal connector 5, an air/liquid pipeline connector 6, a bottom sealing cover 7, a low-pressure cavity 8, a pressing cover 9, quartz glass 10, an air suction opening 11, a pressure gauge 12, a pulley 13, an electric crane 14, a vacuum flange 15, a horizontal displacement base 16, an air cylinder 17, an electric heating wire 18, a thermocouple 19 and a platform panel 20.
Detailed Description
The experimental device for measuring the single oil drop combustion temperature and the flame structure under the low pressure condition of the present invention will be described in detail with reference to the attached drawings.
As shown in fig. 1-5, the experimental device for measuring the combustion temperature and flame structure of single oil drop under low pressure condition comprises a movable supporting frame, which is composed of a frame platform 2 and a vertical support, wherein a platform panel 20 is fixedly arranged on the surface of the frame platform 2; an electric crane 14 is fixedly arranged in the frame platform 2; the bottom of the frame platform 2 is provided with 4 universal wheels 1 with locking and fixing mechanisms.
The low-pressure cavity 8 is used for carrying out a single oil drop combustion test, the structure of the low-pressure cavity is in a cubic shape with an opening at the bottom, the bottom sealing cover 7 is matched with the opening at the bottom through a flange surface and fixed through a bolt, and a sealing ring is arranged between the bottom sealing cover and the opening at the bottom; 4 side surfaces of the low-pressure cavity 8 are respectively provided with an observation window and an air pumping port 11, and the air pumping port 11 is connected to a vacuum pump (used for controlling the internal pressure of the low-pressure cavity 8 to be 0.01MPa-0.1MPa) through a pneumatic connector and a pipeline. The observation window includes gland 9 and quartz glass 10, and the side trompil of gland 9 and low pressure chamber 8 has the flange face of matched with concave-convex structure respectively, is equipped with the sealing washer between the two and realizes fixing through the bolt.
The top cover of the low-pressure cavity 8 is provided with an oil drop injection port and a pressure gauge 12. A vacuum flange 15 is provided at the oil drip inlet for sealing. The pressure gauge 12 is connected with the top cover through threads and realizes sealing. The top cover is also provided with two hangers, and the steel wire ropes are respectively connected with the hangers and an electric crane 14 through pulleys 13 fixed on the vertical support, so that the low-pressure cavity 8 is suspended above the frame platform 2;
the bottom sealing cover 7 is arranged opposite to the platform panel 20 of the frame platform 2 and is movably connected with the 4 lifting support columns 3 through a vertically arranged central threaded column; the lower end part of the central threaded column is provided with a hand wheel 4 for adjusting the displacement of the low-pressure cavity 8 in the vertical direction. The lifting support 3 comprises a fixed support fixed on the lower side of the bottom sealing cover 7 and a sleeve penetrating the platform panel 20, and the fixed support is movably sleeved in the sleeve; the center of the platform panel 20 is provided with a threaded hole, and a central threaded column is installed in the threaded hole and has an external thread matched with the threaded hole.
The inner side surface of the bottom sealing cover 7 is provided with a plurality of screw holes, and the horizontal displacement base 16 is fixed on the bottom sealing cover 7 through screws; a plurality of screw holes are arranged on the horizontal displacement base 16, and the air cylinder 17 is fixed on the horizontal displacement base 16 through screws. The top of the cylinder 17 is provided with a heating wire 18. Two optical supporting rods are fixedly arranged on the inner side surface of the bottom cover 7, and each optical supporting rod is provided with a groove platform. The groove platform is fixed on the optical supporting rod through a screw and can move up and down according to the adjustment requirement. The two groove platforms are arranged at an included angle of 60 degrees, and a corundum tube with the inner diameter of 1mm is respectively installed in each groove and is fixed by hot melt adhesive; an electrode of the thermocouple 19 is respectively arranged in each corundum tube in a penetrating way, and the end parts of the two electrodes of the thermocouple 19 are jointed by welding to form a thermocouple for measuring temperature (which is used as a liquid drop supporting point and a temperature measuring point) so as to achieve good liquid drop fixing and observing effects; the heating wire 18 is disposed opposite to and spaced apart from the thermocouple 19. The bottom cover 7 is also provided with a plurality of connectors, and the heating wire 18 and the thermocouple 19 are respectively connected to an upper computer through respective cables and connectors.
In particular, the connections comprise a plurality of gas/liquid pipe connections 6 and a plurality of electric/signal connections 5; wherein, the gas/liquid pipeline joint 6 is a clamping sleeve which penetrates through the bottom sealing cover 7 and realizes fixation and sealing in a welding way; the electric/signal connector 5 is a hollow threaded pipe penetrating through the bottom sealing cover, a PVC sleeve is wrapped on the outer side of the threaded pipe for insulation, and the cable is fixed by the aid of threaded connection of a nut and the threaded pipe; an air supply air path and a pressure relief air path of the air cylinder 17 are respectively connected with an external pipeline through air/liquid joints; the temperature signal collector, the ignition power supply, the cylinder controller and the time delay relay which are arranged outside the low-pressure cavity 8 are respectively connected with the electric/signal connector 5 positioned on the outer side surface of the bottom sealing cover 7 through cables, and the electric heating wire and the thermocouple are respectively connected with the electric/signal connector 5 positioned on the inner side surface of the bottom sealing cover through cables.
More specific application examples of the embodiment:
the low-pressure cavity 8 and the bottom cover 7 are made of 304 stainless steel, the frame platform 2 can be made of 304 stainless steel and coated with antirust paint 4, and the universal wheels 1 are fixed at four corners of the bottom surface of the frame platform 2 through bolts.
The fixed support of the lifting support 3 is fixed with the bottom platform 7 by welding, and the fixed support and the sleeve are made of 304 stainless steel; the top end of the central threaded steel column is fixed with the bottom sealing cover 7 through bolts and welding, and the lower end of the central threaded steel column is fixed with the hand wheel 4 through screws. The hand wheel 4 is made of high-strength PVC materials, and when the hand wheel rotates clockwise, the low-pressure cavity 8 is driven to ascend, and otherwise, the hand wheel descends. The displacement stroke of the low-pressure cavity 8 in the vertical direction can be adjusted to be 100mm by the hand wheel.
The top of the low-pressure cavity 8 is connected with an electric crane 14 through a high-strength steel rope by welding two hangers, the electric crane 14 has an automatic locking function, and two steel rope pulleys connected with the hangers are obliquely arranged. When the internal module is maintained and replaced, all the bolts between the low-pressure cavity 8 and the bottom sealing cover 7 are detached, the forward control button of the electric crane 14 is pressed, the button is loosened when the low-pressure cavity 8 reaches a specified height, and the reverse control button of the electric crane 14 is pressed after the operation is completed, so that the low-pressure cavity 8 can be reset.
The oil drop injection port was used to drop into the liquid drop during the experiment and sealed with a vacuum flange 15, which was sealed with a KF160 model sealing gasket and a stainless steel clamp.
In order to bear the pressure difference between the inside and the outside, the quartz glass 10 is made of glass with the ultraviolet transmittance of more than 90% and the thickness of 20mm, so that ultraviolet laser and fluorescence can transmit through the glass, the gland 9 is in a frame shape, and the material of the gland can be high-strength PVC.
The upper side surface of the bottom cover 7 is provided with a plurality of uniformly distributed 6mm screw holes, and eight gas/liquid pipeline joints 5 and eight electric/signal joints 4 are arranged; the horizontal displacement table 16 is connected with a screw hole on the bottom cover 7 through an M6 socket head cap screw, the air cylinder 17 is connected with the horizontal displacement table 16 through an M6 socket head cap screw, and the electric heating wire 18 is connected with the air cylinder 17 through an M4 socket head cap screw.
The gas/liquid joint 6 penetrates through the platform 7 at the bottom of the low-pressure cavity in a welding mode, the inside and the outside are sealed in a cutting sleeve mode, and the cutting sleeve joint is a 6mm interface; the electric/signal connector 5 penetrates through the high-strength PVC cylinder through the screw to prevent the electric/signal connector from being conductive with a platform at the bottom of the low-voltage cavity, the inside and the outside of the electric/signal connector are meshed with the screw through nuts and the screw to fix an electric/signal wire, and an insulating tape is required to be wrapped after wiring to prevent the electric wire from being exposed.
The following is a description of the method of use of the experimental set-up:
before the experiment, the low-pressure cavity 8 is adjusted to the height position matched with an external light path and a shooting camera in advance by rotating the hand wheel 4. Firstly, opening a vacuum flange 15 and an oil drop injection port, penetrating a micro-pipette through the oil drop injection port, and placing the fuel oil drop to be tested on the head of an S-shaped platinum-rhodium-platinum thermocouple 19 with the diameter of 0.1mm to ensure that the diameters of the drops in each experiment are the same. Place the liquid drop after with the cavity seal, extract air through the outside vacuum pump that links to each other with extraction opening 11, survey manometer 12 among the air extraction process, close the vacuum pump when the required pressure of experiment operating mode is taken out to intracavity atmospheric pressure. The heating wire 18 is heated by an external direct current voltage-stabilizing power supply, meanwhile, the rising time of the top end of the air cylinder 17 is controlled by an external delay relay so as to control the heating ignition time, and the heating wire 18 rapidly falls back after the liquid drops are ignited so as to minimize the influence of the heating wire on the combustion process after the liquid drops are ignited.
In the experiment, a high-speed camera, an ICCD camera and an Agilent high-precision temperature collector outside the low-pressure cavity are connected to an upper computer, and information such as flame form, free radical distribution, droplet temperature and the like in the droplet combustion process is recorded. In the experiment, the recording frequency of the high-speed camera is 2000 frames per second, the recording frequency of the ICCD camera is 10 frames per second, and the temperature acquisition frequency is 10 times per second.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. An experimental device for measuring the combustion temperature and the flame structure of single oil drop under the low-pressure condition comprises a low-pressure cavity for carrying out a single oil drop combustion test; the device is characterized by comprising a movable supporting frame, a movable supporting frame and a movable supporting frame, wherein the movable supporting frame consists of a frame platform and a vertical support, and a platform panel is fixedly arranged on the surface of the frame platform; an electric crane is fixedly arranged in the frame platform;
the low-pressure cavity is in a cubic shape with an opening at the bottom, and the bottom sealing cover is matched with the opening at the bottom through a flange surface and fixed by bolts; an observation window and an air extraction opening are arranged on the side surface of the low-pressure cavity, and an oil drop injection opening is arranged on the top cover; the top cover is also provided with at least two hangers, and the steel wire ropes are respectively connected with the hangers and the electric crane through pulleys fixed on the vertical support, so that the low-pressure cavity is suspended above the frame platform;
the bottom sealing cover is arranged opposite to the platform panel of the frame platform and is movably connected with the lifting support column through a vertically arranged central threaded column; a hand wheel is arranged at the lower end part of the central threaded column and used for adjusting the displacement of the low-pressure cavity in the vertical direction; a horizontal displacement base is fixedly arranged on the inner side surface of the bottom sealing cover, an air cylinder is arranged on the horizontal displacement base, and an electric heating wire is arranged at the top of the air cylinder; two optical supporting rods are fixedly arranged on the inner side surface of the bottom sealing cover, a platform with a groove is arranged on each optical supporting rod, the two groove platforms are arranged at an included angle of 60 degrees, and a corundum tube is fixedly arranged in each groove; one electrode of a thermocouple is respectively arranged in each corundum tube in a penetrating way, and the end parts of the two electrodes of the thermocouple are jointed to form a liquid drop supporting point and a temperature measuring point; the electric heating wire and the thermocouple are oppositely arranged and keep a distance; the bottom sealing cover is also provided with a plurality of joints, and the electric heating wires and the thermocouples are respectively connected to an upper computer through respective cables and joints.
2. The experimental device as claimed in claim 1, wherein the bottom of the frame platform is provided with a plurality of universal wheels with locking and fixing mechanisms.
3. The assay device of claim 1, wherein the connectors on the bottom closure comprise a plurality of gas/liquid line connectors and a plurality of electrical/signal connectors; the gas/liquid pipeline joint is a clamping sleeve penetrating through the bottom sealing cover and is fixed and sealed in a welding mode; the electric/signal connector is a hollow threaded pipe penetrating through the bottom sealing cover, a PVC sleeve is wrapped on the outer side of the threaded pipe for insulation, and the cable is fixed by utilizing the connection of a nut and the threaded pipe;
the air supply circuit and the pressure relief circuit of the cylinder are respectively connected with an external pipeline through air/liquid joints; the temperature signal collector, the ignition power supply, the cylinder controller and the time delay relay which are arranged outside the low-pressure cavity are respectively connected with the electric/signal connectors positioned on the outer side surface of the bottom sealing cover through cables, and the electric heating wire and the thermocouple are respectively connected with the electric/signal connectors positioned on the inner side surface of the bottom sealing cover through cables.
4. The experimental device as claimed in claim 1, wherein the inner surface of the bottom cover is provided with a plurality of screw holes, and the horizontal displacement base is fixed on the bottom cover through screws; a plurality of screw holes are formed in the horizontal displacement base, and the air cylinder and the optical supporting rod are fixed to the horizontal displacement base through screws respectively.
5. The experimental device according to claim 1, wherein the suction port is connected to a vacuum pump through a pneumatic joint and a pipeline.
6. The experimental device as claimed in claim 1, wherein a pressure gauge is arranged on a top cover of the low-pressure cavity, and the pressure gauge is connected with the top cover through threads and sealed.
7. The experimental device as claimed in claim 1, wherein a sealing ring is arranged between the bottom cover and the flange surface of the bottom opening of the low-pressure chamber.
8. The experimental device as claimed in claim 1, wherein the observation window comprises a gland and quartz glass, the gland and the opening on the side surface of the low-pressure cavity are respectively provided with a flange surface with a matched concave-convex structure, and a sealing ring is arranged between the gland and the opening and is fixed through bolts.
9. The experimental set-up of claim 1, wherein the oil drop injection port is provided with a vacuum flange for sealing.
10. The experimental apparatus as claimed in claim 1, wherein the lifting support comprises a fixed support fixed on the lower side of the bottom cover, and a sleeve penetrating the platform panel, and the fixed support is movably sleeved in the sleeve; the center position of platform panel sets up the screw hole, center thread post installs in the screw hole and has rather than the external screw thread of cooperation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020832258.9U CN212341131U (en) | 2020-05-19 | 2020-05-19 | Experimental device for measuring single oil drop combustion temperature and flame structure under low-pressure condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020832258.9U CN212341131U (en) | 2020-05-19 | 2020-05-19 | Experimental device for measuring single oil drop combustion temperature and flame structure under low-pressure condition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212341131U true CN212341131U (en) | 2021-01-12 |
Family
ID=74083380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020832258.9U Active CN212341131U (en) | 2020-05-19 | 2020-05-19 | Experimental device for measuring single oil drop combustion temperature and flame structure under low-pressure condition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212341131U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111579709A (en) * | 2020-05-19 | 2020-08-25 | 浙江大学 | Experimental device for measuring single oil drop combustion temperature and flame structure under low-pressure condition |
-
2020
- 2020-05-19 CN CN202020832258.9U patent/CN212341131U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111579709A (en) * | 2020-05-19 | 2020-08-25 | 浙江大学 | Experimental device for measuring single oil drop combustion temperature and flame structure under low-pressure condition |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212341131U (en) | Experimental device for measuring single oil drop combustion temperature and flame structure under low-pressure condition | |
| CN104596768A (en) | Device for testing ignition combustion characteristics and propulsive performance of solid fuel micro-thruster | |
| CN111579709A (en) | Experimental device for measuring single oil drop combustion temperature and flame structure under low-pressure condition | |
| CN107014950A (en) | A kind of shock tube experiment device | |
| CN110259603A (en) | Solid fuel diffusion combustion refines diagnosing combustion device | |
| CN102735407A (en) | Equipment and method of detecting sealability of lithium ion battery | |
| CN204389169U (en) | The device of test solid fuel micro-thruster ignition characteristic and propulsive performance | |
| CN108871741B (en) | Low-temperature valve low-temperature test clamping device and method thereof | |
| CN104330232A (en) | Airtightness test fixture | |
| CN113267468B (en) | High-temperature high-pressure absorption cell device for molecular near-infrared absorption spectrum analysis | |
| CN101504322A (en) | Temperature coefficient tester | |
| CN218180218U (en) | Detection device is used in production of fork truck spark plug | |
| CN101532161B (en) | Constant temperature transmission electron microscope sample double-boost electrolysis thinner | |
| CN106990803B (en) | A kind of achievable image measurement and temperature controlled multifunctional compression chamber | |
| CN212274629U (en) | Heating constant temperature device capable of automatically feeding and discharging ash | |
| CN210604475U (en) | Heat conductivity coefficient testing device | |
| CN212059712U (en) | Equipment weathers in slope steel pipe assembly pressure testing in batches | |
| CN212903757U (en) | Airtight test device of intelligent buoy level meter clamping body | |
| CN217979798U (en) | Vacuum tube furnace | |
| CN219996462U (en) | Airtight test adaptation subassembly | |
| CN113640201B (en) | 3D printing box window glass testing device and method | |
| CN204332391U (en) | The leak detection system of fuel rod bubbles of vacuum method leak hunting box and formation thereof after irradiation | |
| CN221037900U (en) | Automobile wire harness terminal head air tightness detection tool | |
| CN218937305U (en) | Diesel engine piston cooling nozzle calibration workbench | |
| CN110806293A (en) | Insulator bearing capacity test tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |