CN111175009A - Portable flow field display smoke generating equipment - Google Patents
Portable flow field display smoke generating equipment Download PDFInfo
- Publication number
- CN111175009A CN111175009A CN201811344718.7A CN201811344718A CN111175009A CN 111175009 A CN111175009 A CN 111175009A CN 201811344718 A CN201811344718 A CN 201811344718A CN 111175009 A CN111175009 A CN 111175009A
- Authority
- CN
- China
- Prior art keywords
- smoke
- flow field
- handheld rod
- agent
- field display
- 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.)
- Granted
Links
- 239000000779 smoke Substances 0.000 title claims abstract description 103
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 64
- 239000004509 smoke generator Substances 0.000 claims abstract description 45
- 238000004804 winding Methods 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 230000000391 smoking effect Effects 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims description 14
- 235000019504 cigarettes Nutrition 0.000 claims description 10
- FRWYFWZENXDZMU-UHFFFAOYSA-N 2-iodoquinoline Chemical compound C1=CC=CC2=NC(I)=CC=C21 FRWYFWZENXDZMU-UHFFFAOYSA-N 0.000 claims description 5
- LTPBRCUWZOMYOC-UHFFFAOYSA-N beryllium oxide Inorganic materials O=[Be] LTPBRCUWZOMYOC-UHFFFAOYSA-N 0.000 claims description 5
- 239000010425 asbestos Substances 0.000 claims description 3
- 229910052895 riebeckite Inorganic materials 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims 1
- 238000005485 electric heating Methods 0.000 abstract 1
- 238000003466 welding Methods 0.000 description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 239000000700 radioactive tracer Substances 0.000 description 3
- 238000009835 boiling Methods 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
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
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/06—Measuring arrangements specially adapted for aerodynamic testing
- G01M9/065—Measuring arrangements specially adapted for aerodynamic testing dealing with flow
- G01M9/067—Measuring arrangements specially adapted for aerodynamic testing dealing with flow visualisation
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention belongs to the technical field of flow field display, and particularly relates to portable flow field fuming equipment for displaying a wind tunnel test flow field. The portable flow field display smoking device comprises an integrated tool box and a smoking device handheld rod. The smoke agent liquid storage bin in the integrated tool box is connected with a gear pump, the gear pump is connected with a flow control needle valve, and the flow control needle valve is connected with a smoke agent output pipe; one end of a transformer in the integrated tool box is connected with an external alternating current power supply, and the other end of the transformer is connected with the transformer which is connected with a wire harness; the smoke agent output pipe is connected to a smoke agent pipeline winding in the smoke generator handheld rod, and the conducting wire harness is connected to a smoke agent electric heating pipeline in the smoke generator handheld rod. The flow control needle valve is used for adjusting the flow of the smoke agent. The transformer is used for adjusting the output voltage. The flow field display smoke generating equipment improves the problems of smoke flow stability and smoke quality, and has higher use portability and operation simplicity.
Description
Technical Field
The invention belongs to the technical field of flow field display, and particularly relates to portable flow field fuming equipment for displaying a wind tunnel test flow field.
Background
The flow field display technology generally adopts colored smoke substances mixed in a flow field to dynamically display the form of the flow field, and is widely applied to liquid flow field display and gas flow field display. In the wind tunnel test, different fuming modes are often needed to be used for flow display of the flow field around the wind tunnel test model. The smoke generating equipment in the existing wind tunnel test adopts the smoke generating agent burnt in the pressure vessel, and the air conveyed by the pressure pump carries the smoke stream to flow out in the front spray pipe of the test model part, and the tracer smoke stream generated by the mode has some defects: such as the smoke density produced is low, the smoke is not stable and sustained; or turbulent rough smoke flowing out like a factory chimney; the unavoidable air convection cooling near the smoke outlet of the smoke generating equipment is also a big characteristic, which is very easy to cause the smoke flow to be liquefied again, and the quality of the smoke flow is reduced again at the smoke outlet; the mounting position of the smoke generating equipment also needs to be frequently clamped and fixed according to the model part displayed by the flow field, so that the wind tunnel test efficiency is reduced; in addition, in use, the conventional smoke generating equipment components are often complex in pipelines and can influence the field safe operation of the wind tunnel, so that the actual wind tunnel test requirements are difficult to meet.
Disclosure of Invention
The purpose of the invention is as follows: a portable handheld flow field display smoke generating device capable of providing a highly stable, high quality smoke stream is presented.
The technical scheme is as follows: a portable flow field display fuming device comprises an integrated tool box and a fuming device handheld rod, wherein the integrated tool box comprises a fuming device handheld rod storage bin 3, a fuming agent liquid storage bin 16, a fuming agent output tube 5 and a wire harness 6; the handheld rod of smoke generator is installed in the handheld rod storage bin 3 of smoke generator, and include shell body 27, handheld rod pole head 4 of smoke generator, inner core thermal-insulated insulating sleeve 24, outer core thermal-insulated insulating sleeve 25, smoke generating agent pipeline winding 22 with smoke generating agent output tube connection, resistance heating coil 23 that is connected with integrated toolbox wire, wherein, inner core thermal-insulated insulating sleeve 24 cup joints in outer core thermal-insulated insulating sleeve 25, cup joint smoke generating agent pipeline winding 22 between the two, resistance heating coil 23 cup joints in outer core thermal-insulated insulating sleeve 25 outer wall recess, the handheld rod pole head 4 one end of smoke generator is passed through screw thread 19 with the handheld rod 1 top of smoke generator and is connected, and the other end is provided with out cigarette holder 18.
The integrated tool box further comprises a pressure control display unit, wherein the pressure control display unit consists of a low-pressure gear pump and a flow control needle valve and is respectively communicated with the smoke agent storage bin 16 and the smoke agent output pipe 5.
The integrated tool box further comprises a temperature control unit, wherein the temperature control unit comprises a transformer, a voltmeter and a thermometer, one section of the transformer 8 is externally connected with a power supply, the other end of the transformer is respectively connected with the voltmeter 11 and is connected to two ends of the resistance heating coil 23 through positive and negative leads 21 and 30 in the lead harness 6, and a thermocouple lead 28 in the lead harness 6 of the thermometer 10 is connected to a beryllium oxide plate 29 at the positive electrode of the resistance heating coil 23.
The gap inside the outer casing 27 of the hand-held rod of the smoke generator is filled with high temperature resistant asbestos insulation material 26.
The smoke agent winding pipelines 22 are four groups, wherein after the smoke agent is heated and vaporized by the resistance coil (23), the smoke flows of the four groups pass through the smoke agent smoke flow collecting chamber 22 and are sprayed out from the four cigarette outlets 18 of the handheld rod head 4 of the smoke generator.
The handheld rod head 4 of the smoke generator is of a symmetrical wing-shaped structure, the cigarette outlet 18 is a plurality of cigarette outlets, and the cigarette outlets are uniformly arranged at the end part of the handheld rod head 4 of the smoke generator.
Has the advantages that: the portable flow field display smoke generating equipment has the advantages that the portable flow field display smoke generating equipment is small in size, easy to operate and free of repeated clamping in use, and wind tunnel test efficiency and simple management and portability of field equipment of the wind tunnel test are effectively guaranteed; meanwhile, the smoke agent flow pipe is electrically heated and pressurized to supply flow, so that the quality of smoke flow is further improved, and an efficient and portable mode is provided for displaying and measuring a wind tunnel test model flow field.
Drawings
FIG. 1 is a structural side view of one embodiment of a portable handheld flow field display smoking device provided by the present invention;
FIG. 2 is a top view of a hand-held rod of a portable hand-held flow field display smoke generating device provided by the present invention;
figure 3 is a cross-sectional internal view of a hand-held rod of a portable handheld flow field display smoking device provided by the present invention,
in the figure, 1 is a smoke generator hand-held rod, 2 is an integrated tool box, 3 is a hand-held rod storage bin, 4 is a smoke generator hand-held rod head, 5 is a smoke generating agent output pipeline, 6 is a conducting wire, 7 is an external power plug, 8 is a temperature control unit bin, 9 is an integrated tool box upper cover, 10 is a thermometer, 11 is a voltmeter, 12 is a gear pump switch in a pressure control unit, 13 is a flow control needle valve knob in the pressure control unit, 14 is a pressure gauge, 15 is a smoke generating agent flow pipe, 16 is a smoke generating agent liquid storage bin, 17 is a smoke generating agent liquid storage bin liquid filling port cover, 18 is a smoke outlet, 19 is a connecting thread between the smoke generator hand-held rod head 4 and the top end of the smoke generator hand-held rod 1, 20 is a smoke generating agent smoke flow collecting chamber, 21 is a power supply cathode conducting wire, 22 is 4 groups of smoke generating agent winding pipelines, 23 is a resistor, 24 is an inner core insulating ceramic sleeve, and 25 is an outer core insulating ceramic sleeve, 26 is asbestos insulation material filled in the gap of the smoke generator hand rod, 27 is smoke generator hand rod shell, 28 is thermocouple lead, 29 is beryllium oxide plate, 30 is power supply positive pole lead, 31 is smoke generating agent output manifold which respectively flows smoke generating agent in the smoke generating agent output pipeline 5 into 4 groups of smoke generating agent winding pipelines 22.
Detailed Description
The technical solution in the embodiment of the present invention is clearly and completely described below with reference to fig. 1 to 3 in the embodiment of the present invention, and the described embodiment is only a preferred embodiment of the present invention. All other embodiments obtained by a person skilled in the art without making any inventive step are within the scope of protection of the present invention.
The portable flow field display smoking device of the present invention comprises two major parts, preferably an integrated tool box and a smoker hand-held rod. Wherein, integrated toolbox includes that the handheld pole of smoke generator accomodates the storehouse, smoke agent stock solution storehouse, pressure control display element, temperature control unit constitute. The pressure control display unit is internally provided with a low-pressure gear pump, a flow control needle valve and a pressure gauge which are used for conveying the smoke agent to a downstream pipeline and are used for adjusting and maintaining the pressure in the smoke agent conveying pipeline. The temperature control unit is internally provided with a power switch, an external power plug, a small-size transformer, a voltmeter and a thermometer and is used for adjusting the current in the output wire of the temperature control circuit. The handheld rod of the smoke generator mainly comprises a shell, an outer core insulating ceramic sleeve, a smoke generating agent pipeline winding arranged on the inner wall of the outer core sleeve, a heating resistance wire winding on the outer wall of the outer core sleeve, an inner core insulating sleeve and a handheld rod head of the smoke generator. The smoke agent pipeline winding is composed of 4 groups of smoke agent conveying manifolds divided by a main smoke agent pipeline in a handheld rod of the smoke generator. The smoke agent conveying manifold in the handheld rod of the smoke generator adopts a copper pipe, and the connection mode of the pipeline joint adopts a welding mode, so that the requirements on pipeline air tightness and pressure are met. 4 round holes with the distance of 10 mm are arranged on the side wall of the handheld rod head of the smoke generator, and the diameter of each hole is phi 0.5 mm.
When the portable flow field display smoke generating device is used, the power plug 7 of the integrated tool box is plugged into a plug board connected with an external 220V alternating current power supply, and the smoke generator hand-held rod 1 is held and kept at the upstream of airflow of a flow field display part required by a wind tunnel test model. The handheld rod 27 of the smoke generator is a stainless steel pipe with the diameter of 70mm and the thickness of 1.5mm, and the length of the handheld rod is 700 mm. The handheld rod comprises 4 groups of smoke agent winding pipelines 22, a power supply positive electrode lead 30, a power supply negative electrode lead 21, a thermocouple lead 28, an inner core insulating sleeve 24, an outer core insulating sleeve 25 and a resistance heating coil 23, and the top end of the handheld rod 1 of the smoke generator is connected with a symmetrical wing-shaped rod head 4 with rectification through a thread 19. The smoke agent is a chemical reagent used for generating tracer smoke in a wind tunnel test, the preferred preparation embodiment is mixed liquid of glycerol, polyethylene glycol, propylene glycol and the like, the liquid in the smoke agent liquid storage bin 16 is conveyed to the smoke agent output pipeline 5 through the smoke agent flow pipe 15 by the low-pressure gear pump 12, an overflow valve arranged in the adopted low-pressure gear pump can play a certain role in pressure regulation, pressure limitation and system overload prevention, and the flow control needle valve 13 is used for further regulating the flow in the smoke agent conveying pipeline so as to establish the pre-preferred pressure and flow. When the pressure gauge 14 indicates a preferred suitable pressure, such as 0.15Mpa, a fine laminar flow plume can be generated at the mouthpiece 18. The smoke agent pipeline 22 is heated by the current provided by the wires 21 and 30 after the voltage of the voltmeter 11 is changed, the smoke agent is heated to the boiling point in the smoke agent winding pipeline 22, and the generated tracer smoke flows pass through the smoke flow collecting chamber 20 and then is sprayed out along the smoke outlet 18. The smoke outlet 18 is a small hole with a diameter of 0.5mm formed on the side wall of the smoke agent winding pipeline as shown in figure 2. The vaporized smoke agent sprayed from the tail ends of the 4 groups of smoke agent winding pipelines 22 is firstly concentrated in the smoke agent smoke flow collecting chamber 20 and then flows out from the smoke outlet 18 through a through hole in the handheld rod head 4 of the smoke generator. A transformer in the temperature control unit bin 8 can adjust and maintain the current in the resistance heating coil 22, a power supply negative electrode lead 21 is connected with a welding point on one side of the resistance heating coil 23 close to the smoke agent smoke flow collecting chamber 20, and a power supply positive electrode lead 30 is connected with a welding point on one side of the resistance heating coil 23 close to the smoke generator hand-held handle; meanwhile, the thermocouple 28 is connected to a beryllium oxide plate 29 connected to a positive electrode welding point of the power line, and the beryllium oxide is a good insulating and heat conducting material.
After the resistance heating coil 23 is preheated by connecting an external power supply, a gear pump working switch is turned on and a flow control needle valve is adjusted, the smoke agent is conveyed to each group of smoke agent winding pipelines 22 in the handheld handle of the smoke generator, and the smoke agent in the pipelines is sprayed out from the small holes 18 on the handheld rod head 4 of the smoke generator after the temperature of the smoke agent in the pipelines exceeds the boiling point temperature.
After the equipment finishes using, unscrew the threaded connection of the handheld pole of smoke generator 1 and the handheld pole head of smoke generator 4, lay the handheld pole of smoke generator 1 and the handheld pole head of smoke generator 4 in the handheld pole storage compartment 3 in the integrated tool case 2, retrieve the temperature control unit storehouse 8 in the integrated tool case through the external power plug 7, then close the tool case upper cover 9 and lock well, can accomplish accomodating of equipment of fuming. The flow field display fuming equipment can be carried to a storage chamber or another test site through the tool box handle, so that the tool box is very convenient and is suitable for instant operation.
Claims (6)
1. The utility model provides a portable flow field display smoke generating equipment, includes two parts of integrated toolbox, smoke generator handheld rod, its characterized in that: the integrated tool box part comprises a smoke generator hand-held rod storage bin (3), a smoke generating agent liquid storage bin (16), a smoke generating agent output pipe (5) and a wire harness (6); the handheld rod of the smoke generator is arranged in a handheld rod storage bin (3) of the smoke generator, and comprises a handheld rod head (4) of the smoke generator, an outer shell (27), an inner core insulating sleeve (24), an outer core insulating sleeve (25), a smoke generating agent pipeline winding (22) connected with a smoke generating agent output tube (5), and a resistance heating coil (23) connected with a wire of an integrated tool kit wire harness (6), wherein the inner core insulating sleeve (24) is sleeved in the outer core insulating sleeve (25), the smoke generating agent pipeline winding (22) is sleeved between the inner core insulating sleeve and the outer core insulating sleeve, the resistance heating coil (23) is sleeved in a groove in the outer wall of the outer core insulating sleeve (25), one end of the handheld rod head (4) of the smoke generator is connected with the top of the handheld rod (1) of the smoke generator through a thread (19), and a cigarette outlet (18) is arranged at the other end of the.
2. The portable flow field display smoking device of claim 1, wherein: the integrated tool box further comprises a pressure control display unit, wherein the pressure control display unit consists of a low-pressure gear pump and a flow control needle valve and is communicated with a smoke agent liquid storage bin (16) and a smoke agent output pipe (5).
3. The portable flow field display smoking device of claim 1, wherein: the integrated tool box further comprises a temperature control unit, the temperature control unit comprises a transformer, a voltmeter and a thermometer, wherein one end of the transformer (8) is externally connected with a power supply, the other end of the transformer is respectively connected with the voltmeter (11) and is connected to the two ends of the resistance heating coil (23) through positive and negative leads (21) and (30) in the lead harness (6), and the thermometer (10) is connected to a beryllium oxide plate (29) at the positive electrode of the resistance heating coil (23) through a thermocouple lead (28) in the lead harness (6).
4. The portable flow field display smoking device of claim 1, wherein: the gap inside the shell (27) of the hand-held rod of the smoke generator is filled with high-temperature resistant asbestos insulating materials (26).
5. The portable flow field display smoking device of claim 1, wherein: the smoke agent winding pipelines (22) are four groups, wherein after the smoke agent is heated and vaporized by the resistance coil (23), the smoke flows of the four groups are sprayed out from the four cigarette outlets (18) of the handheld rod head (4) of the smoke generator through the smoke agent smoke flow collecting chamber (22).
6. The portable flow field display smoking device of claim 1, wherein: the handheld rod head (4) of the smoke generator is of a symmetrical wing-shaped structure, the cigarette outlet (18) is of a plurality of cigarette outlets, and the cigarette outlets are uniformly arranged at the end part of the handheld rod head (4) of the smoke generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811344718.7A CN111175009B (en) | 2018-11-12 | 2018-11-12 | Portable flow field display smoke generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811344718.7A CN111175009B (en) | 2018-11-12 | 2018-11-12 | Portable flow field display smoke generating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111175009A true CN111175009A (en) | 2020-05-19 |
| CN111175009B CN111175009B (en) | 2024-06-07 |
Family
ID=70648734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811344718.7A Active CN111175009B (en) | 2018-11-12 | 2018-11-12 | Portable flow field display smoke generating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111175009B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3964304A (en) * | 1974-04-24 | 1976-06-22 | Parrish Kemp L | Smoke generator |
| JPH06320082A (en) * | 1993-05-11 | 1994-11-22 | Dainichi Kogyo Kk | Smoke emitter |
| CN203929354U (en) * | 2014-06-23 | 2014-11-05 | 吉林大学 | A kind of portable aerosol producer |
| CN105509991A (en) * | 2015-11-26 | 2016-04-20 | 厦门大学 | Fuming device of smoke wind tunnel |
| CN206990189U (en) * | 2017-07-13 | 2018-02-09 | 青岛凌鼎智能科技有限公司 | A kind of flue gas streamline instrument |
-
2018
- 2018-11-12 CN CN201811344718.7A patent/CN111175009B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3964304A (en) * | 1974-04-24 | 1976-06-22 | Parrish Kemp L | Smoke generator |
| JPH06320082A (en) * | 1993-05-11 | 1994-11-22 | Dainichi Kogyo Kk | Smoke emitter |
| CN203929354U (en) * | 2014-06-23 | 2014-11-05 | 吉林大学 | A kind of portable aerosol producer |
| CN105509991A (en) * | 2015-11-26 | 2016-04-20 | 厦门大学 | Fuming device of smoke wind tunnel |
| CN206990189U (en) * | 2017-07-13 | 2018-02-09 | 青岛凌鼎智能科技有限公司 | A kind of flue gas streamline instrument |
Non-Patent Citations (1)
| Title |
|---|
| 彭和平: "国外军用发烟器材发展现状与趋势", 火工品, no. 02, 30 June 1995 (1995-06-30) * |
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| Publication number | Publication date |
|---|---|
| CN111175009B (en) | 2024-06-07 |
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Address after: 519000 1st floor, headquarters base office building, 1519 Yinwan Road, Wanchai, Xiangzhou District, Zhuhai City, Guangdong Province Applicant after: R&D INSTITUTE OF CHINA AVIATION INDUSTRY GENERAL AIRCRAFT Co.,Ltd. Address before: 519040 AVIC Tongfei industrial base, aviation industrial park, Jinwan District, Zhuhai City, Guangdong Province Applicant before: R&D INSTITUTE OF CHINA AVIATION INDUSTRY GENERAL AIRCRAFT Co.,Ltd. |
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