CN108894894A - A kind of powder fluidizer for being easy to load - Google Patents
A kind of powder fluidizer for being easy to load Download PDFInfo
- Publication number
- CN108894894A CN108894894A CN201810566929.9A CN201810566929A CN108894894A CN 108894894 A CN108894894 A CN 108894894A CN 201810566929 A CN201810566929 A CN 201810566929A CN 108894894 A CN108894894 A CN 108894894A
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- Prior art keywords
- powder
- piston
- storage tank
- hose
- hole
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/70—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using semi- solid or pulverulent propellants
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
- Air Transport Of Granular Materials (AREA)
Abstract
The present invention is to provide a kind of powder fluidizer for being easy to load supplied for powder rocket engine fuel and the methods for using device filling and feed fuel powder.Piston is pulled to storage tank front end using the motor connecting with piston rod, so that the hollow metal tube connected on piston is contacted with front panel, piston rod is unloaded from piston (without being unloaded from transmission device), funnel is protruded into hollow metal tube by front panel through-hole to connect with piston thread, powder is added into storage tank from funnel, powder enters storage tank from the through-hole of piston centre axis.After fuel loads, funnel is unloaded, piston rod screws in piston, realize the filling of fuel, gas source and motor are opened, fluidizing gas enters storage tank by hose and blows powder, and powder is under strength driving and piston driving effect, enter fluidizing chamber in the form of Dual-Phrase Distribution of Gas olid, enters combustion chamber after powder fluidization under the disturbance of lateral air inlet.
Description
Technical field
The invention belongs to the fuel of powder rocket engine to supply field, and in particular to a kind of powder fluidisation for being easy to load
Device.
Background technique
Al/AP (aluminium/ammonium perchlorate) powder rocket engine is a kind of using superfine aluminium power as fuel, and ammonium perchlorate is made
For the rocket engine of oxidant, powder fluidizer is one of composition of whole system, promotes cooperation high speed using piston
Powder in storage tank is sent into combustion chamber and is mixed and burned by air-flow, is changed by changing piston fltting speed and fluidized gas air velocity
Variable-flow achievees the effect that adjustable thrust.The characteristics of Al/AP powder rocket engine itself can carry oxidant and fuel makes it
It can work, have a good application prospect in aerospace field in a vacuum.
Powder supply technology is one of the core technology of Al/AP powder rocket engine, realizes pulverized fuel and oxidant
Continuous, stable, controllable supply be engine stabilizer work premise.The provisioning technique main thought of powder is storage tank
In powder fluidization, while pneumatic conveying cooperate piston promote realize fuel continuous-stable supply, finally with gas-solid
The form of two phase flow sprays into combustion chamber.
The Kong Longfei of the National University of Defense Technology fluidizes spray in the pulverized fuel feeding mechanism of pulverized fuel punching engine
It is additionally arranged flow-disturbing cone at pipe, and have been directed to discrete phase granule density in flow-disturbing cone various configuration and position stream field and carry out
Calculate analysis, and bibliography (add flow-disturbing cone numerical simulation study in pulverized fuel feeding mechanism, rocket propulsion, 2012
2nd phase)；A kind of pulverized fuel feeding mechanism (patent No. of prefilled powder column is illustrated in the He Zhengfa of Harbin Engineering University
CN102644932A), motor driven piston is used, cut powder column using high-temperature fuel gas and single stream is carried out to metal powder
Change.Existing fluidizer has the adjustable feature of flow, but needs the fuel investment in storage tank in advance, the closure of structure
It makes troubles to the filling again of fuel, the coupling part for needing to dismantle fluidizing chamber and storage tank is loaded, while existing apparatus
Fluid effect and powder delivery efficiency it is not ideal enough.Therefore, the optimization of powder fluidisation feedway is very necessary.
Summary of the invention
The purpose of the present invention is to provide a kind of powder fluidizers for being easy to load to be loaded in powder storage tank with simplifying
Process is realized and is directly loaded from outside into storage tank, is not needed the coupling part of disassembly fluidizing chamber and storage tank while being improved powder
The fluidising effect of fuel.
The technical solution for realizing the aim of the invention is as follows：A kind of powder fluidizer for being easy to load, described device packet
Storage tank, piston, front panel, fluidizing chamber, rear panel, the first hose, hollow metal tube, piston rod and funnel are included, the storage tank
Front end is fixedly connected with front panel, and the piston is set in the storage tank, and the piston includes running through along its longitudinal center line
The through-hole of the piston and with the through-hole N number of (N >=2) threaded hole disposed in parallel, the hollow metal tube and the work
Plug is fixedly connected and docks with the through-hole and include one section of internal screw thread, one end of the piston rod inside the hollow metal tube
The other end is connected to motor to connect by external screw thread with the screw-internal thread fit of the hollow metal tube, before the front panel offers
Face plate center hole and N number of front panel through-hole, first hose be it is N number of, each first hose pass through the front panel through-hole company
It is connected to the threaded hole, the osculum end of the funnel is fixedly connected with a long tube, and the end of the long tube includes an external thread section, institute
The external screw thread for stating external thread section can be fixedly connected with the screw-internal thread fit, the fluidizing chamber front end with the rear end of storage tank, institute
It states fluidisation cavity rear end to be fixedly connected with the rear panel, the rear panel offers through-hole.
Preferably, multiple holes, the Kong Shangshe on the cavity of each fluidizing chamber are offered on the cavity of the fluidizing chamber
It is equipped with second pneumatic joint, the second hose is connect with second pneumatic joint.
Preferably, first pneumatic joint is provided on each threaded hole, first hose and first is pneumatically
Connector connection.
Preferably, the front panel is connect by bolt with storage tank, and the storage tank is connect by bolt with fluidizing chamber, described
Fluidizing chamber is connect by bolt with rear panel.
Preferably, the N is 2.
Preferably, the outside wall surface of the piston covers rubber sleeve.
Preferably, the powder is aluminium powder.
Preferably, the inner wall of the storage tank passes through polishing treatment.
A method of using powder fluidizer filling as described above and feed fuel powder, including following step
Suddenly：
(1) piston is pulled to the front end of storage tank using motor by piston rod, rotation piston rod is by it from hollow metal tube
Middle back-out；
(2) external thread section of the long pipe end of funnel is screwed in into the internal thread segment in hollow metal tube, realizes funnel and work
The threaded connection of plug；
(3) fuel powder is added into storage tank by funnel, powder enters storage by hollow metal tube along the long tube of funnel
The filling of case realization fuel powder；
(4) funnel is screwed off after fuel powder filling and piston rod is screwed in into hollow metal tube again；
(5) gas source and the motor connecting with the first hose and the second hose are opened, fluidizing gas passes through the first hose
Blowing powder into storage tank, piston is mobile to storage tank rear end under the drive of the motor simultaneously, and powder is in strength driving and piston driving
Under double action, fluidizing chamber is entered in the form of Dual-Phrase Distribution of Gas olid, lateral air inlet enters fluidizing chamber by the second hose, secondary
Under the disturbance of air inlet, combustion chamber is entered by the through-hole of the rear panel after the further fluidization of powder.
The invention has the advantages that：
(1) when the pulverized fuel in storage tank exhausts, piston rod can be unloaded, by the hollow metal on metal funnel and piston
Pipe docking, directly adds powder, without dismantling the coupling part of fluidizing chamber and storage tank into storage tank；
(2) powder is additionally arranged fluidizing chamber after leaving storage tank, and powder fluidised form is improved under the Secondary Disturbance of lateral air inlet
The effect of change.
Other than objects, features and advantages described above, there are also other objects, features and advantages by the present invention.
Below with reference to figure, the present invention is described in further detail.
Detailed description of the invention
Fig. 1 is fluidizer working state structure schematic diagram.
Fig. 2 is fluidizer filling status architecture schematic diagram.
Fig. 3 is the structural schematic diagram of metal funnel.
Fig. 4 is piston structure schematic diagram.
Specific embodiment
In order to be better understood by technology contents of the invention, spy lifts specific embodiment and institute's attached drawing is cooperated to be described as follows.
In conjunction with Fig. 1-4, a kind of powder fluidizer for being easy to load, described device includes storage tank 10, piston 15, front panel
16, fluidizing chamber 11, rear panel 17, the first hose 2, hollow metal tube, piston rod 1 and funnel 13, the front end of the storage tank 10 with
Front panel 16 is fixedly connected, and the piston 15 is set in the storage tank 10, and the piston 15 includes passing through along its longitudinal center line
Wear the piston 15 through-hole 8 and with the through-hole 8 threaded hole of N number of N >=29 disposed in parallel, the hollow metal tube and institute
Piston 15 is stated to be fixedly connected and dock with the through-hole 8 and include one section of internal screw thread 5, the piston inside the hollow metal tube
One end of bar 1 is connected to motor the other end and is cooperatively connected by the internal screw thread 5 of external screw thread and the hollow metal tube, the front
Plate 16 offers front panel centre bore and N number of front panel through-hole, first hose 2 be it is N number of, each first hose 2 passes through institute
It states front panel through-hole and is connected to the threaded hole 9, the osculum end of the funnel 13 is fixedly connected with a long tube, the end of the long tube
Including an external thread section 14, the external screw thread of the external thread section 14 can cooperate with the internal screw thread 5,11 front end of fluidizing chamber
It is fixedly connected with the rear end of storage tank 10,11 rear end of fluidizing chamber is fixedly connected with the rear panel 17, and the rear panel 17 is opened
Equipped with through-hole.
Further, referring to Fig. 1-2, multiple holes, each fluidizing chamber 11 are offered on the cavity of the fluidizing chamber 11
Cavity on hole on be provided with second pneumatic joint, the second hose 12 is connect with second pneumatic joint.
Further, in conjunction with first pneumatic joint 7 is provided on Fig. 1,4 each threaded holes 9, described first is soft
Pipe 2 is connect with the first pneumatic joint.
Further, the front panel 16 is connect by bolt with storage tank 10, and the storage tank 10 passes through bolt and fluidizing chamber
11 connections, the fluidizing chamber 11 are connect by bolt with rear panel 15.
Further, the N is 2.
Further, the outside wall surface set rubber sleeve of the piston 13 guarantees its air-tightness.
Further, the powder is aluminium powder.
Further, the inner wall of the storage tank 10 passes through polishing treatment.
Further, hollow metal length of tube is 1/5th of 10 length of powder storage tank, hollow metal tube interior middle point
Place is starting point to piston side cutting internal thread segment 5, and length of cut is the one third of hollow metal tube.In piston rod 1 and metal
The cutting of 13 tail end of funnel and the matched external thread section of internal thread segment 5, length of cut are identical.
First and second hose is PVC hose.
A method of using powder fluidizer filling as described above and feed fuel powder, including following step
Suddenly：
(1) piston 15 is pulled to the front end of storage tank 10 using motor by piston rod 1, rotation piston rod 1 is by it from hollow
(part that piston rod 1 is connected to motor is rotated together with piston rod 1) is screwed out in metal tube；
(2) external thread section 14 of the long pipe end of funnel 13 is screwed in into the internal thread segment 5 in hollow metal tube, realizes funnel
13 with the threaded connection of piston 15；
(3) fuel powder is added into storage tank 10 by funnel 13, powder passes through hollow metal tube along the long tube of funnel 13
The filling of fuel powder is realized into storage tank 10；
(4) funnel 13 is screwed off after fuel powder filling and piston rod 1 is screwed in into hollow metal tube again；
(5) gas source and the motor connecting with the first hose 2 and the second hose 12 are opened, fluidizing gas is soft by first
Pipe 2 blows powder into storage tank 10 while piston 15 is mobile to 10 rear end of storage tank under the drive of the motor, and powder drives in strength
Driven under double action with piston, enter fluidizing chamber 11 in the form of Dual-Phrase Distribution of Gas olid, lateral air inlet by the second hose 12 into
Enter fluidizing chamber 11, under the disturbance of secondary air inlet, combustion is entered by the through-hole of the rear panel 17 after the further fluidization of powder
Burn room.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of powder fluidizer for being easy to load, which is characterized in that described device includes storage tank (10), piston (15), preceding
Panel (16), fluidizing chamber (11), rear panel (17), the first hose (2), hollow metal tube, piston rod (1) and funnel (13), institute
The front end for stating storage tank (10) is fixedly connected with front panel (16), and the piston (15) is set in the storage tank (10), the work
Plug (15) include along its longitudinal center line through the piston (15) through-hole (8) and with the through-hole (8) N disposed in parallel
A (N >=2) threaded hole (9), the hollow metal tube are fixedly connected with the piston (15) and dock with the through-hole (8) and institute
Stating includes one section of internal screw thread (5) inside hollow metal tube, and one end of the piston rod (1) is connected to motor the other end and passes through outer spiral shell
The internal screw thread (5) of line and the hollow metal tube is cooperatively connected, the front panel (16) offer front panel centre bore and it is N number of before
Faceplate through holes, first hose (2) be it is N number of, each first hose (2) pass through the front panel through-hole be connected to the screw thread
Hole (9), the osculum end of the funnel (13) are fixedly connected with a long tube, and the end of the long tube includes an external thread section (14), institute
The external screw thread for stating external thread section (14) can cooperate with the internal screw thread (5), fluidizing chamber (11) front end and storage tank (10)
Rear end is fixedly connected, and fluidizing chamber (11) rear end is fixedly connected with the rear panel (17), and the rear panel (17) offers
Through-hole.
2. the powder fluidizer according to claim 1 for being easy to load, which is characterized in that the chamber of the fluidizing chamber (11)
Multiple holes are offered on body, are provided with second pneumatic joint on the hole on the cavity of each fluidizing chamber (11), second
Hose (12) is connect with second pneumatic joint.
3. the powder fluidizer according to claim 1 or 2 for being easy to load, which is characterized in that each threaded hole
(9) first pneumatic joint (7) is provided on, first hose (2) connect with the first pneumatic joint.
4. the powder fluidizer according to claim 1 or 2 for being easy to load, which is characterized in that the front panel (16)
It is connect by bolt with storage tank (10), the storage tank (10) is connect by bolt with fluidizing chamber (11), and the fluidizing chamber (11) is logical
Bolt is crossed to connect with rear panel (15).
5. the powder fluidizer according to claim 1 or 2 for being easy to load, which is characterized in that the N is 2.
6. the powder fluidizer according to claim 1 or 2 for being easy to load, which is characterized in that the piston (13)
Outside wall surface covers rubber sleeve.
7. the powder fluidizer according to claim 1 or 2 for being easy to load, which is characterized in that the powder is aluminium powder.
8. the powder fluidizer according to claim 1 or 2 for being easy to load, which is characterized in that the storage tank (10)
Inner wall passes through polishing treatment.
9. it is according to claim 2 be easy to load powder fluidizer, which is characterized in that first hose (2) and
Second hose (12) is PVC hose.
10. a kind of method using powder fluidizer as claimed in claim 2 filling and feed fuel powder, feature exist
In including the following steps：
(1) piston (15) is pulled to by piston rod (1) by the front ends of storage tank (10) using motor, rotation piston rod (1) by its from
It is screwed out in hollow metal tube；
(2) external thread section (14) of the long pipe end of funnel (13) is screwed in into the internal thread segment (5) in hollow metal tube, realizes leakage
The threaded connection of bucket (13) and piston (15)；
(3) fuel powder is added into storage tank (10) by funnel (13), long tube of the powder along funnel (13) passes through hollow metal
Pipe enters the filling that storage tank (10) realize fuel powder；
(4) funnel (13) is screwed off after fuel powder filling and piston rod (1) is screwed in into hollow metal tube again；
(5) gas source and the motor connecting with the first hose (2) and the second hose (12) are opened, fluidizing gas is soft by first
Pipe (2) blows powder into storage tank (10) while piston (15) is mobile to storage tank (10) rear end under the drive of the motor, and powder exists
Under strength driving and piston driving double action, entered in the form of Dual-Phrase Distribution of Gas olid fluidizing chamber (11), lateral air inlet passes through the
Two hoses (12) enter fluidizing chamber (11), under the disturbance of secondary air inlet, pass through the rear panel after the further fluidization of powder
(17) through-hole enters combustion chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810566929.9A CN108894894B (en) | 2018-06-05 | 2018-06-05 | Powder fluidizing device easy to fill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810566929.9A CN108894894B (en) | 2018-06-05 | 2018-06-05 | Powder fluidizing device easy to fill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108894894A true CN108894894A (en) | 2018-11-27 |
| CN108894894B CN108894894B (en) | 2020-08-11 |
Family
ID=64344125
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810566929.9A Active CN108894894B (en) | 2018-06-05 | 2018-06-05 | Powder fluidizing device easy to fill |
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| CN (1) | CN108894894B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667742A (en) * | 2019-01-31 | 2019-04-23 | 西北工业大学 | A kind of powder storage tank inner piston sealing device |
| CN109779743A (en) * | 2019-01-31 | 2019-05-21 | 西北工业大学 | A kind of powder particle strength charging method and system |
| CN110260361A (en) * | 2019-07-11 | 2019-09-20 | 南昌航空大学 | It is a kind of using metal powder as the after-burner of fuel |
| CN110318885A (en) * | 2019-07-11 | 2019-10-11 | 南昌航空大学 | A kind of hydraulic drive type pulverized fuel conveying device |
| CN108894894B (en) * | 2018-06-05 | 2020-08-11 | 南京理工大学 | Powder fluidizing device easy to fill |
| CN112922726A (en) * | 2021-02-08 | 2021-06-08 | 北京航空航天大学 | Powder supply device, metal powder ramjet and aircraft |
| CN115264520A (en) * | 2022-06-23 | 2022-11-01 | 中南大学 | Powder fuel supply device |
| CN115506892A (en) * | 2022-09-01 | 2022-12-23 | 西安近代化学研究所 | Staged fluidized structure of pulverized fuel supply system |
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| CN102951446A (en) * | 2012-11-09 | 2013-03-06 | 裕东（中山）机械工程有限公司 | Powder delivery device |
| CN102951447A (en) * | 2012-11-09 | 2013-03-06 | 裕东（中山）机械工程有限公司 | Vertical powder conveying device |
| CN102997268A (en) * | 2012-10-24 | 2013-03-27 | 西北工业大学 | Anti-tempering powder supply device |
| CN103662840A (en) * | 2013-12-06 | 2014-03-26 | 中山市君禾机电设备有限公司 | Device used for adding powder |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108894894B (en) * | 2018-06-05 | 2020-08-11 | 南京理工大学 | Powder fluidizing device easy to fill |
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| US4342428A (en) * | 1980-09-05 | 1982-08-03 | General Motors Corporation | Powdered coal delivery system |
| CN102997268A (en) * | 2012-10-24 | 2013-03-27 | 西北工业大学 | Anti-tempering powder supply device |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108894894B (en) * | 2018-06-05 | 2020-08-11 | 南京理工大学 | Powder fluidizing device easy to fill |
| CN109667742A (en) * | 2019-01-31 | 2019-04-23 | 西北工业大学 | A kind of powder storage tank inner piston sealing device |
| CN109779743A (en) * | 2019-01-31 | 2019-05-21 | 西北工业大学 | A kind of powder particle strength charging method and system |
| CN109779743B (en) * | 2019-01-31 | 2020-05-26 | 西北工业大学 | Powder particle pneumatic filling method and system |
| CN110260361A (en) * | 2019-07-11 | 2019-09-20 | 南昌航空大学 | It is a kind of using metal powder as the after-burner of fuel |
| CN110318885A (en) * | 2019-07-11 | 2019-10-11 | 南昌航空大学 | A kind of hydraulic drive type pulverized fuel conveying device |
| CN110318885B (en) * | 2019-07-11 | 2024-03-01 | 南昌航空大学 | Hydraulic drive type powder fuel conveying device |
| CN112922726A (en) * | 2021-02-08 | 2021-06-08 | 北京航空航天大学 | Powder supply device, metal powder ramjet and aircraft |
| CN112922726B (en) * | 2021-02-08 | 2022-03-29 | 北京航空航天大学 | Powder supply device, metal powder ramjet and aircraft |
| CN115264520A (en) * | 2022-06-23 | 2022-11-01 | 中南大学 | Powder fuel supply device |
| CN115506892A (en) * | 2022-09-01 | 2022-12-23 | 西安近代化学研究所 | Staged fluidized structure of pulverized fuel supply system |
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|---|---|
| CN108894894B (en) | 2020-08-11 |
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