CN106989920A - A kind of air injection performance test stand - Google Patents
A kind of air injection performance test stand Download PDFInfo
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- CN106989920A CN106989920A CN201710430783.0A CN201710430783A CN106989920A CN 106989920 A CN106989920 A CN 106989920A CN 201710430783 A CN201710430783 A CN 201710430783A CN 106989920 A CN106989920 A CN 106989920A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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Abstract
The invention discloses a kind of air injection performance test stand, including air compressor (1), blast main (2), screw feeding device (3), proportional flow control valve (4), main conveying airduct (5), positive pressure ventilation pipe (6), eddy flow airduct (7), air injection device (8), the auxiliary pipe of eddy flow (9), transparent delivery pipe (10), conveying straight tube (11), high-speed camera (12), camera support (13), support frame (14), barretter (15) and vortex-shedding meter (16).The present invention can be using the affecting laws of multi-index orthogonal test project study air injection device structural parameters and different distribution of air flow ratio to jet performance, by recording spraying system interior flow field pressure change and the conveying situation of material under different parameters combination, obtain the injector optimal parameter for meeting requirement of actual working condition, lift air injection device transfer efficiency, ensure the reliability of air-transport system, reduce the generation of the accidents such as line clogging.
Description
Technical field
The present invention relates to a kind of air injection performance test stand, it is adaptable to studies each structural parameters of air injection device and not
With affecting laws of the distribution of air flow ratio to jet performance, the optimal parameter scope for meeting requirement of actual working condition is found.
Background technology
When exploiting thin and ultra-thin coal seam using drilling method, delay filling protection is carried out to drilling method goaf, is to solve top
Plate is caving, reduced the most ideal solution of prearranged pillar.And girdle amount containing cash is higher, seam mining is highly small, stower
Make face working space limited, general stowage unit is difficult to enter inside goaf, therefore, and drilling is carried out using Pneumatic Conveying Technology
Method goaf filling and spoil conveying, can effectively take into account exploitation economic benefit and environmental benefit, improve the recovery of coal resources
Rate, reduction filling cost.The key equipment that injector is fed as Geldart-D particle, its architectural characteristic and different distribution of air flow ratios
Example problem solves internal blockage and played an important role to the jet performance of raising injector.However, so far
Rarely has the jet performance testing stand seen for emitter construction characteristic.
The content of the invention
Goal of the invention：The purpose of the present invention is to make up research air injection device architectural characteristic and different distribution of air flow ratios
Deficiency in jet performance affecting laws existing method can be sprayed there is provided a kind of using the strength of multi-index orthogonal test scheme
Penetrate performance test stand, the influence of research air injection device structural parameters and different distribution of air flow ratios to injector jet performance
Rule, finds the optimum structure parameter scope for meeting working condition requirement.
Technical scheme：To achieve the above object, the technical solution adopted by the present invention is：
A kind of air injection performance test stand, for the performance test of air injection device (8), including air compressor (1),
Blast main (2), screw feeding device (3), proportional flow control valve (4), main conveying airduct (5), positive pressure ventilation pipe (6), eddy flow airduct
(7), the auxiliary pipe of eddy flow (9), transparent delivery pipe (10), conveying straight tube (11), high-speed camera (12), barretter (15) and vortex street stream
Gauge (16), wherein：The gases at high pressure outlet of air compressor (1) is connected by blast main (2) with proportional flow control valve (4) air inlet
It is logical, and main defeated air-supply outlet, the outlet of malleation wind and Whirl deposite tank outlet are provided with the proportional flow control valve (4), the master is defeated
Air-supply outlet, main conveying airduct (5), barretter (15) are sequentially communicated, and the discharging opening of the barretter (15) is used to spray with strength
The nozzle (8-5) of emitter (8) is connected, and the vortex-shedding meter (16) is arranged on barretter (15).The screw feeding
The malleation air port (3-6) of device (3) passes through positive pressure ventilation pipe (6) and the malleation wind outlet of proportional flow control valve (4), the spiral
The discharging opening of feeding device (3) is used to be connected with the feeding mouth of air injection device (8).The Whirl deposite tank outlet, eddy flow airduct
(7), the auxiliary pipe of eddy flow (9) is sequentially communicated, and the outlet of the auxiliary pipe of the eddy flow (9) is used for and air injection device (8) swirling inlet mouthful
Connection.The discharging opening of the transparent delivery pipe (10) is connected with conveying straight tube (11) charging aperture, and transparent delivery pipe (10) are entered
Material mouth is used to be connected with the discharging opening of air injection device (8).It is attached that the high-speed camera (12) is arranged on transparent delivery pipe (10)
Closely, and the high-speed camera (12) is used to shoot particle motion conditions in transparent delivery pipe (10).The conveying straight tube
(11) with being mounted on pressure sensor on barretter (15).
It is preferred that：The screw feeding device (3) includes variable-frequency motor (3-1), hopper (3-2), casing (3-3), axis body
(3-4), conveyor screw (3-5), malleation air port (3-6) and discharging opening (3-7), the axis body (3-4), conveyor screw (3-5) are set
It is placed in casing (3-3), and the conveyor screw (3-5) is wrapped in axis body (3-4) surface.The hopper (3-2) is arranged at
One end of casing (3-3), and the discharging opening (3-7) is arranged at casing (3-3) other end.The malleation air port (3-6) sets
It is placed on casing (3-3) on one end of discharging opening (3-7), and discharging opening (3-7) is pointed in the malleation air port (3-6).Institute
Variable-frequency motor (3-1) is stated to be connected by reductor and axis body (3-4).
It is preferred that：The malleation air port (3-6) of the screw feeding device (3), discharging opening, the gas of screw feeding device (3)
The feeding mouth center of power injector (8) is point-blank.
It is preferred that：The air injection device (8) includes pan feeding section (8-1), receives section (8-2), converging transition (8-3), mixing
Section (8-4), nozzle (8-5), pagoda joint (8-6).Section (8-2), converging transition (8-3), the mixing section (8-4) of receiving connects successively
Connect, the pan feeding section (8-1) is arranged on the side wall for receiving section (8-2), and the nozzle (8-5) is arranged at and receives section (8-2)
Upper one end away from converging transition (8-3), and the nozzle (8-5) is connected by pagoda joint (8-6) with barretter (15), it is described
Pan feeding section (8-1) is connected with discharging opening (3-7).
It is preferred that：The pan feeding section (8-1) is θ, 60 °≤θ≤90 ° with the angle for receiving section (8-2).
It is preferred that：Described converging transition (8-3) one end is big opening, and other end is small opening, and one end of big opening is with connecing
By section (8-2) connection, one end of small opening is connected with mixing section (8-4).The length of described converging transition (8-3) is l3, 100mm
≤l3≤400mm。
It is preferred that：The nozzle (8-5) is welded on the ring flange with through hole (8-11) side, and ring flange (8-11)
Opposite side be provided with screwed hole, the screwed hole is arranged around through hole, and the ring flange (8-11), which is fixedly mounted on, receives section (8-2)
Upper one end away from converging transition (8-3), and described pagoda joint (8-6) one end is threadedly coupled with screwed hole, the other end and current stabilization
Manage (15) connection.
It is preferred that：The length of the nozzle (8-5) is l1, 50mm≤l3≤170mm.
It is preferred that：It is described to receive to be provided with gasket seal one between section (8-2), converging transition (8-3), mixing section (8-4).
It is preferred that：Gasket seal two is provided between the pan feeding section (8-1) and discharging opening (3-7).
The present invention compared with prior art, has the advantages that：
Air injection performance test stand of the present invention have it is simple in construction, occupy little space, the work of vdiverse in function, testing stand it is steady
The advantages of determining.Total wind regime flow is proportionately distributed to main conveying wind, malleation wind and Whirl deposite tank, main conveying wind carries for induction system
For power, malleation wind is to solve the problems, such as the section returning charge of pan feeding that conventional injector often has, and Whirl deposite tank disturbance gas body formation eddy flow makes
Material keeps " rotation is floating " state to reduce minimum conveying flow velocity and improve fed distance.Meanwhile, by entering in air injection device
Expect that section welds the combining and interchanging of overall, decrement section, nozzle and adpting flange with receiver section, and coordinate pressure sensor, vortex street
Flowmeter, screw feeding system, proportional flow control valve, transparent delivery pipe and high-speed camera, can obtain different air-flow ratios, difference
High pressure nozzle outlet air flow, interior flow field pressure under conveying capacity and Different structural parameters under air injection device operating mode become
Change, particle motion conditions and jeting effect.The invention can use multi-index orthogonal test project study air injection device structure
Parameter compensate for the blank in air injection device to different distribution of air flow ratio researchs to the affecting laws of jet performance, have
There is wide applicability and stronger novelty.
Brief description of the drawings
Fig. 1 is the front view of the present invention.
Fig. 2 is the top view of the present invention.
Fig. 3 is the axonometric drawing of the present invention.
Fig. 4 is the screw feeding device axonometric drawing of the present invention.
Fig. 5 is the air injection device front view of the present invention.
Fig. 6 is sectional view of the air injection performance experiment table pan feeding section of the present invention with receiving section welding entirety.
Fig. 7 is the sectional view of the air injection performance experiment table converging transition of the present invention.
Fig. 8 is the sectional view of the air injection performance test stage nozzle of the present invention.
Fig. 9 is the front view of the air injection performance experiment table adpting flange of the present invention.
In figure：1st, air compressor, 2, blast main, 3, screw feeding device, 4, proportional flow control valve, 5, main conveying airduct,
6th, positive pressure ventilation pipe, 7, eddy flow airduct, 8, air injection device, 9, the auxiliary pipe of eddy flow, 10, transparent delivery pipe, 11, conveying straight tube, 12, high
Fast video camera, 13, camera support, 14, support frame, 15, barretter, 16, vortex-shedding meter, 3-1, variable-frequency motor, 3-2, hopper,
3-3, casing, 3-4, axis body, 3-5, conveyor screw, 3-6, malleation air port, 3-7, discharging opening, 8-1, pan feeding section, receive section at 8-2,
8-3, converging transition, 8-4, mixing section, 8-5, nozzle, 8-6, pagoda joint, 8-7, flange bolt M12,8-8, flange nut M12,
8-9, flange bolt M8,8-10, flange nut M12,8-11, adpting flange, 6.1- pan feedings section and the section welding entirety that receives (θ=
90 °), 6.2- pan feedings section is overall (θ=80 °) with receiving section welding, and 6.3- pan feedings section is overall (θ=70 °) with receiving section welding,
6.4- pan feedings section is with receiving section welding entirety (θ=60 °), 7.1- converging transitions (l3=100mm), 7.2- converging transitions (l3=
200mm), 7.3- converging transitions (l3=300mm), 7.4- converging transitions (l3=400mm), 8.1- nozzles (l1=50mm), 8.2- nozzles
(l1=90mm), 8.3- nozzles (l1=130mm), 8.4- nozzles (l1=170mm), 9.1- adpting flanges (l2=0), 9.2- connects
Acting flange (l2=10mm), 9.3- adpting flanges (l2=20mm), 9.4- adpting flanges (l2=30mm).
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the present invention is furture elucidated, it should be understood that these examples are merely to illustrate this
Invention rather than limitation the scope of the present invention, after the present invention has been read, those skilled in the art are various to the present invention's
The modification of the equivalent form of value falls within the application appended claims limited range.
A kind of air injection performance test stand, for the performance test of air injection device (8), as shown in Figures 1 to 3, including
Air compressor (1), blast main (2), screw feeding device (3), proportional flow control valve (4), main conveying airduct (5), positive pressure ventilation pipe
(6), eddy flow airduct (7), the auxiliary pipe of eddy flow (9), transparent delivery pipe (10), conveying straight tube (11), high-speed camera (12), barretter
(15) and vortex-shedding meter (16), wherein：The gases at high pressure outlet of air compressor (1) passes through blast main (2) and proportional flow
Valve (4) air inlet is connected, and main defeated air-supply outlet, the outlet of malleation wind and Whirl deposite tank are provided with the proportional flow control valve (4)
Outlet, the defeated air-supply outlet of master, main conveying airduct (5), barretter (15) are sequentially communicated, the discharging opening of the barretter (15)
It is connected for the nozzle (8-5) with air injection device (8), and the vortex-shedding meter (16) is arranged on barretter (15).
The malleation air port (3-6) of the screw feeding device (3) is exported by the malleation wind of positive pressure ventilation pipe (6) and proportional flow control valve (4)
Connection, the discharging opening of the screw feeding device (3) is used to be connected with the feeding mouth of air injection device (8).The Whirl deposite tank goes out
Mouth, eddy flow airduct (7), the auxiliary pipe of eddy flow (9) are sequentially communicated, and the outlet of the auxiliary pipe of the eddy flow (9) is used for and air injection device (8)
Swirling inlet mouthful connection.The discharging opening of the transparent delivery pipe (10) is connected with conveying straight tube (11) charging aperture, and transparent conveying
The charging aperture of pipe (10) is used to be connected with the discharging opening of air injection device (8).The high-speed camera (12) is arranged on transparent defeated
Send near pipe (10), and the high-speed camera (12) is used to shoot the particle motion conditions in transparent delivery pipe (10).It is described
Conveying straight tube (11) on barretter (15) with being mounted on pressure sensor.The pressure-air of blast main (2) conveying is by ratio stream
Amount valve (4) is divided into main conveying wind, malleation wind and Whirl deposite tank by different proportion, and main conveying wind is by main conveying airduct (5) by nozzle
Into in air injection device (8), power is provided for whole course of conveying, malleation wind enters auger by positive pressure ventilation pipe (6)
In feeding device (2), returning charge is prevented, Whirl deposite tank is entered the mixing chamber of air injection device (8) by the auxiliary pipe of eddy flow (9), makes gas
Eddy flow is formed, distribution of air flow ratio can be changed according to requirement of experiment.
Air compressor 1 produces gases at high pressure and enters the one end of proportional flow control valve 4 by blast main 2, and proportional flow control valve 4 is another
The main conveying airduct 5 of end connection, positive pressure ventilation pipe 6 and eddy flow airduct 7, main conveying airduct 5 are connected with barretter 15, and barretter 15 is another
End connection vortex-shedding meter 16, positive pressure ventilation pipe 6 is connected with screw feeding device 3, and eddy flow airduct 7 is connected with the auxiliary pipe of eddy flow 9, spiral
The pan feeding section of the discharging opening of feeding device 3 and air injection device 8 is bolted, both on support frame 14, gas
The transparent delivery pipe 10 of the outlet of power injector 8 connection, the transparent outlet of delivery pipe 10 connection conveying straight tube 11, high-speed camera 12 is installed
On the camera support 13 of the transparent side of delivery pipe 10.
As shown in figure 4, the screw feeding device (3) includes variable-frequency motor (3-1), hopper (3-2), casing (3-3), axle
Body (3-4), conveyor screw (3-5), malleation air port (3-6) and discharging opening (3-7), the axis body (3-4), conveyor screw (3-5)
It is arranged in casing (3-3), and the conveyor screw (3-5) is wrapped in axis body (3-4) surface.The hopper (3-2) is set
In casing (3-3) one end, and the discharging opening (3-7) is arranged at casing (3-3) other end.The malleation air port (3-6)
It is arranged on casing (3-3) on one end of discharging opening (3-7), and discharging opening (3-7) is pointed in the malleation air port (3-6).
The variable-frequency motor (3-1) is connected by reductor and axis body (3-4), the malleation air port of the screw feeding device (3)
(3-6), the discharging opening of screw feeding device (3), air injection device (8) feeding mouth center point-blank.Variable-frequency motor
3-1 drives axis body 3-4 to be rotated in casing 3-3 by reductor, and conveyor screw 3-5 is welded on axis body 3-4, malleation air port 3-
6 are arranged on tail end top is connected with positive pressure ventilation pipe 6, and discharging opening 3-7 is arranged on tail end bottom and connected with air injection device 8 by bolt
Connect, and encrypt gasket to prevent leak-stopping material gas leakage, material is entered by hopper 3-2, is delivered to discharge outlet in malleation wind and gravity
In the presence of enter air injection device 8, by changing frequency, the feed quantity of screw feeding device 3 can be carried out according to requirement of experiment
Change.
As shown in figure 5, the air injection device (8) includes pan feeding section (8-1), receives section (8-2), converging transition (8-3), mixes
Close section (8-4), nozzle (8-5), pagoda joint (8-6).It is described to receive section (8-2), converging transition (8-3), mixing section (8-4) successively
Connection, the pan feeding section (8-1) is arranged on the side wall for receiving section (8-2), and the nozzle (8-5) is arranged at and receives section (8-
2) one end away from converging transition (8-3) on, and the nozzle (8-5) is connected by pagoda joint (8-6) with barretter (15), institute
Pan feeding section (8-1) is stated to be connected with discharging opening (3-7).Described converging transition (8-3) one end is big opening, and other end is small opening,
One end of big opening is connected with receiving section (8-2), and one end of small opening is connected with mixing section (8-4).Nozzle (8-5) welding
On ring flange (8-11) side with through hole, and the opposite side of ring flange (8-11) is provided with screwed hole, the screwed hole
Around through hole arrangement, the ring flange (8-11), which is fixedly mounted on, receives one end away from converging transition (8-3) in section (8-2), and described
Pagoda joint (8-6) one end is threadedly coupled with screwed hole, and the other end is connected with barretter (15).It is described receive section (8-2), it is tapered
Gasket seal one is provided between section (8-3), mixing section (8-4).Set between the pan feeding section (8-1) and discharging opening (3-7)
There is gasket seal two.Described pan feeding section 8-1 is with receiving section 8-2 by being welded to connect, and described receiving section 8-2 sides pass through method
Blue bolt M128-7 and flange nut M128-8 are connected with converging transition 8-2 big opening ends, and other side is also by flange bolt
M128-7 and flange nut M128-8 are connected with adpting flange 8-11, and described adpting flange 8-11 passes through flange bolt M88-9
It is connected with flange nut M88-10 with nozzle 8-5, described pagoda joint 8-6 sides are connected through a screw thread and nozzle 8-5 phases
Even, other side is connected with barretter 15, and described mixing section 8-4's passes on left flange bolt M128-7 and flange nut
M128-8 is connected with converging transition 8-3 osculums end, and encrypts gasket between injector different structure to prevent leak-stopping material gas leakage.
As shown in fig. 6, the pan feeding section (8-1) and the angle for receiving section (8-2) are θ, 60 °≤θ≤90 °.When θ is respectively
At 90 °, 80 °, 70 ° and 60 °, pan feeding section 8-1 and the welding for receiving section 8-2 are respectively integrally Fig. 6 .1, Fig. 6 .2, Fig. 6 .3 and figure
Shown in 6.4, it can be changed according to requirement of experiment, the both sides for receiving section 8-2 are welded with the ring flange of same size.
As shown in fig. 7, the length of described converging transition (8-3) is l3, 100mm≤l3≤400mm.Work as l3Respectively
When 100mm, 200mm, 300mm and 400mm, converging transition 8-3 structure is respectively Fig. 7 .1, Fig. 7 .2, shown in Fig. 7 .3 and Fig. 7 .4,
Converging transition 8-3 one end is big opening, and other end is small opening, and two ends are welded with the ring flange of same size, different structure
Converging transition 8-3 can be changed according to requirement of experiment.
As shown in figure 8, the length of the nozzle (8-5) is small 50mm≤l3≤170mm, work as l1Respectively 50mm, 90mm,
During 130mm and 170mm, nozzle 8-5 structure is respectively Fig. 8 .1, Fig. 8 .2, shown in Fig. 8 .3 and Fig. 8 .4, and the left side of nozzle 5 is welded
There is the ring flange of same size, and carry the screwed hole of same size, the nozzle 8-5 of different structure can be according to requirement of experiment
Changed.
As shown in figure 9, being provided with through hole and four screwed holes, through hole and four screwed holes in the middle of described adpting flange 8-11
Positional distance with adpting flange 8-11 centers is l2, work as l2Respectively 0, when 10mm, 20mm and 30mm, adpting flange 8-11's
Structure is respectively Fig. 9 .1, Fig. 9 .2, shown in Fig. 9 .3 and Fig. 9 .4, adpting flange 8-11 end faces periphery be provided with six it is centrosymmetric
Screwed hole, the adpting flange 8-11 of different structure can be changed according to requirement of experiment.
Operation principle：
The injector combining and interchanging structure needed for this experiment is selected, passes through M12 flange bolt 8-7 and M12 flange nuts
8-8 can will receive section 8-2, converging transition 8-3, mixing section 8-4 and adpting flange 8-11 and connect respectively, and integral arrangement is in system
On one axis, then by M8 flange bolts 8-9 and M8 flange nut 8-10 nozzle is installed on adpting flange 8-11, erected
Air injection device 8, injector outlet is connected with transparent delivery pipe 10, and the transparent outlet of delivery pipe 10 is connected with conveying straight tube 11, will
The discharging opening 3-7 of screw feeding device 3 and air injection device 8 pan feeding section 8-1 are bolted rear integral installation in support
On frame 14, and each airduct is connected with spraying system finished, complete air injection device jet performance testing stand and build.
High-speed camera 12 is arranged on camera support 13, adjustment camera support 13 and the position of high-speed camera 12 make
High-speed camera 12 can shoot whole section of transparent delivery pipe 10.
Respectively in barretter with installing pressure sensor on conveying straight tube, vortex-shedding meter 16 and two groups of pressure sensors by
24V dc sources are powered, and the DH5922N Dynamic Signals that its sensor signal is transported to eastern China's test by signal acquiring system are surveyed
Analysis system is tried, sample frequency is 1000Hz.
The connected frequency converter output frequencies of variable-frequency motor 2-1 are set, starts frequency converter and treats that variable-frequency motor 2-1 rotating speeds reach
It is stable, each air flow rate in setting ratio flow valve 4.
Air compressor 1 is opened, after opening valve after air-pressure stable, pressure-air enters spraying system.
Open and start after high-speed camera 12 and data collecting system in pan feeding, system to be sprayed without stopping high speed after material
Video camera 12 and data collecting system simultaneously close valve and stop air inlet, obtain the air mass flow of nozzle 8-5 outlet, in spraying system
Portion's fluid field pressure change and particle motion conditions.
The present invention can be using multi-index orthogonal test project study air injection device structural parameters and different distribution of air flow
Ratio to the affecting laws of jet performance, by record under different parameters combination spraying system interior flow field pressure change and
The conveying situation of material, obtains the injector optimal parameter for meeting requirement of actual working condition, to instruct injector designs to produce, lifting
Air injection device transfer efficiency, it is ensured that the reliability of air-transport system, reduces the generation of the accidents such as line clogging.
Described above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of air injection performance test stand, the performance test for air injection device (8), it is characterised in that：Including air
Compressor (1), blast main (2), screw feeding device (3), proportional flow control valve (4), it is main conveying airduct (5), positive pressure ventilation pipe (6),
Eddy flow airduct (7), the auxiliary pipe of eddy flow (9), transparent delivery pipe (10), conveying straight tube (11), high-speed camera (12), barretter (15)
With vortex-shedding meter (16), wherein：The gases at high pressure outlet of air compressor (1) passes through blast main (2) and proportional flow control valve (4)
Air inlet is connected, and main defeated air-supply outlet, the outlet of malleation wind and Whirl deposite tank outlet are provided with the proportional flow control valve (4),
The defeated air-supply outlet of master, main conveying airduct (5), barretter (15) are sequentially communicated, and the discharging opening of the barretter (15) is used for
It is connected with the nozzle (8-5) of air injection device (8), and the vortex-shedding meter (16) is arranged on barretter (15)；It is described
The malleation air port (3-6) of screw feeding device (3) by the malleation wind outlet of positive pressure ventilation pipe (6) and proportional flow control valve (4),
The discharging opening of the screw feeding device (3) is used to be connected with the feeding mouth of air injection device (8)；The Whirl deposite tank outlet, rotation
Stream airduct (7), the auxiliary pipe of eddy flow (9) are sequentially communicated, and the outlet of the auxiliary pipe of the eddy flow (9) is used for and air injection device (8) eddy flow
Air inlet is connected；The discharging opening of the transparent delivery pipe (10) is connected with conveying straight tube (11) charging aperture, and transparent delivery pipe
(10) charging aperture is used to be connected with the discharging opening of air injection device (8)；The high-speed camera (12) is arranged on transparent conveying
Manage near (10), and the high-speed camera (12) is used to shoot the particle motion conditions in transparent delivery pipe (10)；It is described defeated
Straight tube (11) is sent with being mounted on pressure sensor on barretter (15).
2. air injection performance test stand according to claim 1, it is characterised in that：The screw feeding device (3) includes
Variable-frequency motor (3-1), hopper (3-2), casing (3-3), axis body (3-4), conveyor screw (3-5), malleation air port (3-6) and discharging
Mouth (3-7), the axis body (3-4), conveyor screw (3-5) are arranged in casing (3-3), and the conveyor screw (3-5) is wound
On axis body (3-4) surface；The hopper (3-2) is arranged at casing (3-3) one end, and the discharging opening (3-7) is arranged at
The other end of casing (3-3)；The malleation air port (3-6) is arranged on casing (3-3) on one end of discharging opening (3-7),
And the malleation air port (3-6) points to discharging opening (3-7)；The variable-frequency motor (3-1) is driven by reductor and axis body (3-4)
Connection.
3. air injection performance test stand according to claim 2, it is characterised in that：The screw feeding device (3) is just
Press air port (3-6), the discharging opening of screw feeding device (3), air injection device (8) feeding mouth center point-blank.
4. air injection performance test stand according to claim 2, it is characterised in that：The air injection device (8) include into
Expect section (8-1), receive section (8-2), converging transition (8-3), mixing section (8-4), nozzle (8-5), pagoda joint (8-6)；It is described to connect
It is sequentially connected by section (8-2), converging transition (8-3), mixing section (8-4), the pan feeding section (8-1), which is arranged at, receives section (8-2)
On the wall of side, and the nozzle (8-5) is arranged at and receives one end away from converging transition (8-3) in section (8-2), and the nozzle (8-
5) connected by pagoda joint (8-6) with barretter (15), the pan feeding section (8-1) is connected with discharging opening (3-7).
5. air injection performance test stand according to claim 4, it is characterised in that：The pan feeding section (8-1) is with receiving section
The angle of (8-2) is θ, 60 °≤θ≤90 °.
6. air injection performance test stand according to claim 4, it is characterised in that：Described converging transition (8-3) one end is big
Opening, other end is small opening, and one end of big opening is connected with receiving section (8-2), one end and the mixing section (8-4) of small opening
Connection；The length of described converging transition (8-3) is l3, 100mm≤l3≤400mm.
7. air injection performance test stand according to claim 4, it is characterised in that：The nozzle (8-5), which is welded on, to be carried
On ring flange (8-11) side of through hole, and the opposite side of ring flange (8-11) is provided with screwed hole, and the screwed hole is around through hole
Arrangement, the ring flange (8-11), which is fixedly mounted on, receives one end away from converging transition (8-3) in section (8-2), and the pagoda connects
Head (8-6) one end is threadedly coupled with screwed hole, and the other end is connected with barretter (15).
8. air injection performance test stand according to claim 4, it is characterised in that：The length of the nozzle (8-5) is l1,
50mm≤l3≤170mm。
9. air injection performance test stand according to claim 4, it is characterised in that：It is described to receive section (8-2), converging transition
Gasket seal one is provided between (8-3), mixing section (8-4).
10. air injection performance test stand according to claim 4, it is characterised in that：The pan feeding section (8-1) and discharging opening
Gasket seal two is provided between (3-7).
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| CN201710430783.0A CN106989920B (en) | 2017-06-08 | 2017-06-08 | A kind of air injection performance test stand |
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| CN201710430783.0A CN106989920B (en) | 2017-06-08 | 2017-06-08 | A kind of air injection performance test stand |
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| CN106989920A true CN106989920A (en) | 2017-07-28 |
| CN106989920B CN106989920B (en) | 2019-05-28 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3893833A (en) * | 1972-04-26 | 1975-07-08 | Flex Kleen Corp | Compartmented pulse jet dust collector |
| CN101081490A (en) * | 2006-05-31 | 2007-12-05 | 陈君奎 | Granular material air injection device |
| CN104595059A (en) * | 2014-11-28 | 2015-05-06 | 广西淞森车用部件有限公司 | Gas rail of fuel gas ejector |
| CN105983297A (en) * | 2015-02-09 | 2016-10-05 | 华北电力大学 | Coal-fired power plant fly ash adsorbent integral modification and injection mercury-removing system |
| CN106288477A (en) * | 2015-05-27 | 2017-01-04 | 开利公司 | Ejector system and operation method |
| CN106644540A (en) * | 2016-10-19 | 2017-05-10 | 上海核工程研究设计院 | Test system for testing performance of nuclear power station master control room air ejector |
-
2017
- 2017-06-08 CN CN201710430783.0A patent/CN106989920B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3893833A (en) * | 1972-04-26 | 1975-07-08 | Flex Kleen Corp | Compartmented pulse jet dust collector |
| CN101081490A (en) * | 2006-05-31 | 2007-12-05 | 陈君奎 | Granular material air injection device |
| CN104595059A (en) * | 2014-11-28 | 2015-05-06 | 广西淞森车用部件有限公司 | Gas rail of fuel gas ejector |
| CN105983297A (en) * | 2015-02-09 | 2016-10-05 | 华北电力大学 | Coal-fired power plant fly ash adsorbent integral modification and injection mercury-removing system |
| CN106288477A (en) * | 2015-05-27 | 2017-01-04 | 开利公司 | Ejector system and operation method |
| CN106644540A (en) * | 2016-10-19 | 2017-05-10 | 上海核工程研究设计院 | Test system for testing performance of nuclear power station master control room air ejector |
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| CN106989920B (en) | 2019-05-28 |
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