CN117554056B - Spray performance detection system for spray dryer - Google Patents
Spray performance detection system for spray dryer Download PDFInfo
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- CN117554056B CN117554056B CN202410046221.6A CN202410046221A CN117554056B CN 117554056 B CN117554056 B CN 117554056B CN 202410046221 A CN202410046221 A CN 202410046221A CN 117554056 B CN117554056 B CN 117554056B
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- 239000007921 spray Substances 0.000 title claims abstract description 58
- 238000001514 detection method Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 54
- 238000012360 testing method Methods 0.000 claims abstract description 33
- 230000007246 mechanism Effects 0.000 claims abstract description 31
- 230000005540 biological transmission Effects 0.000 claims description 19
- 230000033001 locomotion Effects 0.000 claims description 16
- 230000001360 synchronised effect Effects 0.000 claims description 8
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 7
- 239000011324 bead Substances 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000005507 spraying Methods 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 12
- 230000008859 change Effects 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract 1
- 238000001035 drying Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 239000007788 liquid Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 235000013601 eggs Nutrition 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000011990 functional testing Methods 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000001648 tannin Substances 0.000 description 1
- 229920001864 tannin Polymers 0.000 description 1
- 235000018553 tannin Nutrition 0.000 description 1
- 230000007723 transport mechanism Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention relates to the technical field of spray dryers, in particular to a spray performance detection system for a spray dryer, which solves the defects in the prior art and comprises a base, a conveying mechanism and a testing mechanism, wherein a control terminal with a PLC (programmable logic controller) is arranged on the base, two supporting plates and two supporting columns are also arranged on the base, a water collecting tank is arranged between the supporting plates on two sides, the conveying mechanism comprises a top frame, an adjusting component and a mounting seat, the top frame is fixed at the tops of the supporting plates and the supporting columns, the adjusting component is arranged in a sliding manner along the length direction of the top frame, the mounting seat is arranged at one side of the bottom of the adjusting component, a sprayer is arranged at the bottom of the mounting seat, and the sprayer synchronously moves along the central axis direction of the width of the top frame with the adjusting component. Compared with the prior art, the invention not only can conveniently and automatically calibrate the position of the object to be tested, but also can test the uniform coverage of the spraying effect through obvious deflection amplitude change.
Description
Technical Field
The invention relates to the technical field of spray dryers, in particular to a spray performance detection system for a spray dryer.
Background
Spray dryers are devices that can simultaneously perform drying and granulation, often for drying somewhat heat sensitive liquids, suspensions and viscous liquids such as milk, eggs, tannins, and pharmaceuticals, and for drying fuels, intermediates, soap powders, inorganic salts, and the like. The principle of the spray dryer is as follows: air is filtered and heated, enters an air distributor at the top of a dryer, hot air enters a drying chamber in a spiral way uniformly, feed liquid is sprayed into ultrafine atomized liquid beads through a high-speed centrifugal atomizer at the top of a tower body, (rotation) and is contacted with the hot air in parallel flow, the finished products can be dried into finished products in a very short time, the finished products are continuously output from the bottom of the drying tower and a cyclone separator, and waste gas is exhausted through a draught fan.
A series of tests are required before the spray dryer can be produced and used to ensure its performance and safety. The test items mainly comprise functional tests, temperature precision tests, spray system tests, dust emission tests and the like, wherein the spray system tests comprise tests on spray effects and spray angles, and spray effect detection is mainly used for checking whether the sprayer can uniformly and finely spray liquid and avoiding the phenomena of dripping, blockage, uneven spraying and the like; the spray angle detection is mainly used for checking whether the spray angle of the sprayer meets the requirement or not, and ensuring that the spray can uniformly cover the surface in the drying tower so as to improve the drying effect.
For spray angle detection, chinese patent publication No. CN205940483U discloses a spray angle detection device for a nozzle, where the detection device mainly drives a nozzle to move up and down by a controller controlling a driving device, records the height of each nozzle, scans the lateral width of a spray area formed by the nozzle at different heights by using a laser radar sensor, sends the lateral width of the spray area scanned each time to an intelligent processing terminal, and the intelligent processing terminal calculates the spray angle of the corresponding nozzle according to the height difference of the nozzle movement and the lateral width of the spray area.
Secondly, another chinese patent publication No. CN211824989U discloses a device for automatically and visually detecting the spraying effect of an alcohol sprayer, the detecting device mainly detects the spraying effect of the image after the collected spraying effect is stable through a CCD visual detecting mechanism, and compares the collected image with a standard spraying image, so as to judge whether the spraying is qualified.
The two technical schemes are established on the basis of accurate data, and then a test conclusion is obtained through an intelligent system or an image comparison mode, so that the requirements on the test and the requirements on equipment are relatively high. Therefore, there is a need for a spray performance detection system for a spray dryer that can directly determine the detection result in an intuitive manner.
Disclosure of Invention
The present invention is directed to a spray performance detection system for a spray dryer, which solves the above-mentioned problems of the prior art.
In order to solve the technical problems, the invention provides the following technical scheme:
The spray performance detection system for the spray dryer comprises a base, a conveying mechanism and a testing mechanism, wherein a control terminal with a PLC is arranged on the base, two supporting plates and two supporting columns are also arranged on the base, and a water collecting tank is arranged between the supporting plates on two sides;
The conveying mechanism comprises a top frame, an adjusting assembly and a mounting seat;
The top frame is fixed at the tops of the supporting plates and the supporting columns, the adjusting assembly is arranged in a sliding mode along the length direction of the top frame, the mounting seat is arranged at one side of the bottom of the adjusting assembly, the sprayer is mounted at the bottom of the mounting seat and moves synchronously with the adjusting assembly along the central axis direction of the width of the top frame;
the test mechanism comprises a fixed plate, a water baffle, a driving assembly, a transmission assembly, a pulley and an indication assembly;
the sprayer stays right above the center of the testing mechanism during testing;
The fixed plate is arranged between the supporting plates on two sides in the horizontal direction, the two water baffles are symmetrically arranged on the fixed plate, the water baffles are arranged in a sliding mode along the side walls of the fixed plate, one end of the driving assembly is fixedly connected with the bottom of the water baffles, a vertical plate is arranged in the middle of the bottom wall of the fixed plate, and the two sides of the vertical plate are respectively provided with the indicating assembly;
The transmission assembly comprises a worm, a screw III and a lifting seat, the worm and the screw III are connected into a whole, the worm is meshed with the driving assembly, the lifting seat is arranged in a sliding manner along the vertical direction of the supporting plate, the screw III penetrates through the lifting seat and is in threaded transmission with the lifting seat, and the pulley is arranged on one side of the screw III;
The indicating assembly comprises two balance arms, balancing weights and indicating marks, the middle of each of the balance arms is connected with a connecting sleeve, the indicating marks and the connecting sleeve are coaxially arranged, the balancing weights are arranged in a sliding mode along the length direction of each of the balance arms, pull ropes which bypass pulleys are connected between the balancing weights and the lifting seats, and the balancing weights and the balance arms can be fixed into a whole through suction.
In one embodiment, two connecting strips connected with the top frame into a whole are arranged between the side walls of the top frame, the two connecting strips are symmetrically arranged, a first screw rod is further rotationally arranged between the side walls of the top frame, and a first limiting block is fixed on the top wall of one connecting strip.
In one embodiment, the adjusting component comprises a first sliding plate, a first connecting plate, a second connecting plate and a fixing strip;
The first sliding plate and the first connecting plate are integrated, the second sliding plate is further arranged on the bottom wall of the first connecting plate, the first sliding plate and the second sliding plate are respectively arranged along the top surface and the side wall of one connecting strip in a sliding manner, the screw rod penetrates through the second sliding plate and is in threaded transmission with the second sliding plate, positioning rollers I which are in contact with the side wall of one connecting strip are arranged on two sides of the bottom of the first connecting plate, two guide rods I and a screw rod II are arranged between the first sliding plate and the fixed strip, the second connecting plate is arranged between the two guide rods I in a sliding manner, the screw rod II penetrates through the second connecting plate and is in threaded transmission with the second connecting plate, and positioning rollers II are arranged on two sides of the bottom of the second connecting plate;
the first adjusting arm and the second adjusting arm with the same length are respectively and rotatably arranged at the middle positions of the top surfaces of the first connecting plate and the second connecting plate, the first adjusting arm is coaxially connected with the other end of the second adjusting arm, and the mounting seat is arranged below the connecting position of the first adjusting arm and the second adjusting arm in a lifting and adjusting mode along the vertical direction;
When the second positioning roller is also contacted with the side wall of the connecting strip at the other side, the position of the mounting seat is positioned on the central axis of the width of the top frame.
In one embodiment, the top surface of the fixed plate is provided with a plurality of drainage grooves arranged along the length direction of the fixed plate, the fixed plate is internally provided with drainage holes penetrating the fixed plate along the width direction of the fixed plate, the drainage grooves are communicated with the drainage holes, two sides of the vertical plate are horizontally provided with guide rods II, the other ends of the guide rods II are fixed on the supporting plates positioned on the same side, the guide rods II penetrate through the water baffle plates, and pushing bars are arranged on one sides of the water baffles on two sides in a moving mode along the linear direction.
In one embodiment, the drive assembly includes a rack, a pinion, and a worm gear;
One end of rack is fixed in the middle of the bottom of breakwater, and the other end of rack runs through the backup pad setting to all weld on the both sides lateral wall of rack has the bead, and the bead also runs through and slides between the inner wall of backup pad, gear and rack intermeshing, the worm wheel is provided with two, and the gear is located the centre of two worm wheels, installs two fixing bases one that the symmetry set up on the lateral wall of backup pad, installs synchronizing shaft one between the fixing base one of both sides, and the gear passes through synchronizing shaft one with two worm wheels and is connected in step.
In one embodiment, the worm and the screw rod III are internally penetrated with a second synchronizing shaft which is connected with the worm and the screw rod III into a whole, the two ends of the second synchronizing shaft are respectively provided with a third fixing seat, a second fixing seat of a U-shaped structure is further arranged on the side wall of the supporting plate between the two third fixing seats in the same vertical direction, the pulley is arranged at the opening of the second fixing seat, no threads are arranged on the circumferential outer surface of the top end of the screw rod III, and the top end of the screw rod III penetrates through and rotates between the inner walls of the second fixing seats.
In one embodiment, side grooves are formed in the vertical side walls on two sides of the vertical plate, a bottom groove is further formed in the middle of the bottom wall of the vertical plate, one end of the indicator is rotatably arranged in the bottom groove, the connecting sleeve is rotatably arranged on one side of the side groove, a power supply is arranged in the connecting sleeve, a synchronizing shaft III connected with the connecting sleeve on two sides and the top end of the indicator are penetrated and integrally, and the synchronizing shaft III penetrates and is rotatably arranged between the inner walls of the vertical plate;
a second limiting block is arranged on the bottom wall of the balance arm, wire holes penetrating through the balance arm and the second limiting block are formed in the balance arm and the second limiting block, the wire holes are matched with the pull ropes, a second convex seat and a first convex seat are respectively arranged on the bottom wall of the balancing weight and on one side wall of the lifting seat, and two ends of the pull ropes are respectively fixed in the first convex seat and the second convex seat;
Silicon steel sheets are embedded in the side walls of the two sides of the balance arm, are arranged along the length direction of the balance arm and are in a strip-shaped structure, and are connected with a power supply through guiding.
In one embodiment, the first synchronous shaft is further provided with a rotation angle sensor, when the first synchronous shaft rotates along with the gear, the rotation angle sensor senses a signal, the suction force between the balancing weight and the balance arm disappears, the balancing weight can move along the length direction of the balance arm along with the movement of the pull rope, and when the signal sensed by the rotation angle sensor disappears, the suction force between the balancing weight and the balance arm is generated again and is connected with the balancing weight and the balance arm into a whole, and the balancing weight stops moving at the moment.
Compared with the prior art, the invention has the following beneficial effects:
1. Through setting up conveying mechanism in the top of the device, utilize the rectilinear motion of connecting plate two, cooperation regulating arm one and regulating arm two, with the help of isosceles triangle's characteristic for the spray thrower of arbitrary dress on the mount pad can all be through automatically regulated's mode, adjust to the test mechanism central point put directly over, improved the degree of automation and the degree of accuracy of the spray thrower position adjustment of awaiting measuring.
2. Through setting up testing mechanism between the both sides backup pad to the impact force of sprayer spun water is as the power to both sides breakwater motion, thereby through the linkage cooperation between drive assembly and the drive assembly, make the stay cord can drive the balancing weight and slide on the balance arm and adjust, thereby according to the nature of lever principle, utilize the position difference of balancing weight on the balance arm of both sides, realize the deflection drive of instruction mark, and then can test out the homogeneity degree of this sprayer spraying effect more obviously.
In summary, the invention not only can conveniently and automatically calibrate the position of the object to be tested, but also can test the uniform coverage of the spraying effect through obvious deflection amplitude variation.
Drawings
The technical solution and other advantageous effects of the present application will be made apparent by the following detailed description of the specific embodiments of the present application with reference to the accompanying drawings.
In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective;
FIG. 3 is a schematic view of the transport mechanism of the present invention;
FIG. 4 is a schematic view of the test mechanism installation of the present invention;
FIG. 5 is a schematic diagram of the front view of FIG. 4;
FIG. 6 is a schematic diagram of the structure of the testing mechanism of the present invention;
Fig. 7 is a schematic view of the structure of another view of fig. 6.
In the figure: 1. a base; 11. a control terminal; 12. a water collection tank; 13. a support plate; 131. a first fixing seat; 132. a second fixing seat; 133. a fixing seat III; 134. a guide groove; 14. a support column; 2. a conveying mechanism; 21. a top frame; 211. a first screw; 22. a first sliding plate; 221. a second screw; 222. a first guide rod; 23. a first connecting plate; 231. a second slide plate; 232. positioning a first roller; 233. an adjusting arm I; 24. a second connecting plate; 241. a positioning roller II; 242. an adjusting arm II; 25. a fixing strip; 26. a mounting base; 3. a testing mechanism; 31. a fixing plate; 311. a drain hole; 312. a drainage channel; 313. a riser; 32. a water baffle; 321. a second guide rod; 33. a rack; 331. a limiting piece; 332. a rib; 34. a gear; 341. a rotation angle sensor; 35. a worm wheel; 36. a transmission assembly; 361. a worm; 362. a screw III; 363. a lifting seat; 37. a pulley; 38. a balance arm; 381. connecting sleeves; 382. balancing weight; 383. a wire hole; 384. a silicon steel sheet; 39. an indicator; 4. pushing the strip.
Detailed Description
The following disclosure provides many different embodiments, or examples, for implementing different features of the application. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.
As shown in fig. 1-2, the invention provides the technical scheme that: the utility model provides a spray performance detecting system for spray drier, including base 1, conveying mechanism 2 and test mechanism 3, set up the control terminal 11 of taking the PLC controller on the base 1, and install two backup pads 13 and two support columns 14 of vertical setting through the bolt on the base 1, the support column 14 is "L" type structure, the header tank 12 has been placed in the centre of two backup pads 13, conveying mechanism 2 installs at the top of backup pad 13 and support column 14, be used for carrying the shower that waits to detect, and can adjust its central point of detection area automatically, test mechanism 3 sets up in the top of header tank 12, and test mechanism 3 installs between the lateral wall of both sides backup pad 13, with the impact force of shower spun water to drive the breakwater 32 of both sides, the displacement motion of rethread both sides breakwater 32, with the balance arm 38 as the lever, according to the difference of both sides counter weight, instruct mark 39 to the deflection to the side of the skew, thereby judge the even degree of spraying of this shower in the spraying process.
As shown in fig. 3, the conveying mechanism 2 includes a top frame 21, an adjusting assembly, and a mount 26;
Two connecting strips which are connected with the top frame 21 into a whole are arranged between the side walls of the top frame 21, the two connecting strips are symmetrically arranged, the adjusting component is arranged between the connecting strips on two sides in a sliding mode, a first screw rod 211 is arranged on one side of one connecting strip, the first screw rod 211 is arranged between the side walls of the top frame 21 in a rotating mode, a first motor which is connected with the first screw rod 211 through screws is arranged on the outer wall of the top frame 21, the first motor is a rotating motor, the mounting seat 26 is arranged at the bottom of the adjusting end of the adjusting component, the sprayer is arranged at the bottom of the mounting seat 26 through threaded connection, and a water inlet pipe connected with the sprayer penetrates through the mounting seat 26 and extends out of the top frame 21 to be connected with a water supply source.
A first limiting block is further arranged on the top wall of one connecting strip through a screw, a first contact sensor (not shown in the figure) is embedded on the side wall of one side, facing the adjusting component, of the first limiting block, and the first contact sensor is connected with the PLC through an electric signal.
Specifically, after the sprayer is installed at the bottom of the installation seat 26, the position adjustment is automatically completed by the adjusting component, so that the adjusted sprayer is located in the central axis direction of the top frame 21, then, the adjusting component drives the sprayer to move above the position where the testing mechanism 3 is located through the screw thread driving action of the first screw rod 211, when the adjusting component is in contact with the first limiting block, the first contact sensor on the first limiting block is triggered, and at the moment, the first screw rod 211 stops working, namely, the sprayer at the moment is located at the central position right above the testing mechanism 3.
The adjusting component comprises a first slide plate 22, a first connecting plate 23, a second connecting plate 24 and a fixing strip 25;
The first slide plate 22 and the first connecting plate 23 are fixed into a whole through screws, the second slide plate 231 is also fixed on the bottom wall of the first connecting plate 23 through screws, the first slide plate 22 is arranged in a sliding way along the top surface of the connecting strip, one end of the second slide plate 231 is arranged in a sliding way along the side wall of the connecting strip, the first screw rod 211 penetrates the second slide plate 231 and is in threaded transmission fit with the second slide plate 231, the two ends of the first connecting plate 23 are provided with integrated first protrusions, the bottoms of the first protrusions are provided with first positioning rollers 232 through nuts, the first positioning rollers 232 are in contact with the side wall of the connecting strip, the fixing strip 25 is positioned on one side of the first slide plate 22 and is provided with two first guide rods 222 therebetween, a second screw rod 221 is also arranged between the two guide rods 222, one end of the second screw rod 221 is connected with a second motor (not shown in the figure), the second motor is arranged between the inner walls of the first slide plate 22, the second motor is a rotating motor, the second screw 221 is rotatably arranged between the first slide plate 22 and the fixed strip 25, the second connecting plate 24 slides on the first two guide rods 222, the second screw 221 penetrates through the second connecting plate 24 and is in threaded transmission fit with the second connecting plate, the two ends of the second connecting plate 24 are also provided with integrated protrusions II, positioning rollers II 241 are arranged at the bottoms of the protrusions II through nuts, the positioning rollers II 241 are always positioned between the other connecting strip and the fixed strip 25, the positioning rollers I232 and the positioning rollers II 241 are identical in size, annular contact sensors II (not shown in the figure) are embedded on the circumferential outer surfaces of the positioning rollers II 241, and the contact sensors II are connected with a PLC (programmable logic controller) through electric signals.
The center positions of the top surfaces of the first connecting plate 23 and the second connecting plate 24 are respectively provided with a first adjusting arm 233 and a second adjusting arm 242 through shaft connection rotation, the other ends of the first adjusting arm 233 and the second adjusting arm 242 are connected together in a coaxial mode (the shafts are denoted as connecting shafts), a third motor is arranged on the top surface of one end of the second adjusting arm 242 through screws, the third motor is a lifting motor, an output shaft of the lifting motor penetrates through the connecting shafts, and the mounting seat 26 is fixed on the end part of the output shaft of the lifting motor through a threaded connection mode.
Specifically, the second motor 221 is started by the PLC controller to rotate and control the second moving plate to move in the position, the second screw 221 is rotated forward, the second moving plate moves away from the side of the fixed bar 25 to adjust, and moves to the side close to the fixed bar 25 to adjust, after the sprayer is mounted at the bottom of the mounting seat 26, the second moving plate is controlled to move to the connecting bar, when the second positioning roller 241 contacts with the side wall of the connecting bar, at this time, the second contact sensor is triggered, then the second motor stops working, in the current state, as shown in fig. 3, the first positioning roller 232 and the second positioning roller 241 respectively contact with the side walls of the connecting bars on both sides, then the PLC controller restarts the first motor to drive the first motor 211 to rotate forward, so as to control the second sliding plate 231 to move to the side close to the first limiting block, and then synchronously drive the whole adjusting assembly to move together, after the first sliding plate 22 contacts with the first contact sensor, the first contact sensor is triggered, the first motor stops working, and the first motor moves to the position right above the center of the testing mechanism 3, and then the first motor can be started according to the controller, and the height of the PLC can be adjusted.
It should be noted that, the lengths of the first adjusting arm 233 and the second adjusting arm 242 are equal, so that when the second connecting plate 24 moves to the second positioning roller 241 to contact with the connecting bar, the connecting end of the first adjusting arm 233 and the first connecting plate 23 and the connecting end of the second adjusting arm 242 and the second connecting plate 24 just form two corners of an isosceles triangle, and the first adjusting arm 233 and the second adjusting arm 242 serve as two isosceles triangle sides, so that the mounting seat 26 at the connecting end of the first adjusting arm 233 and the second adjusting arm 242 just falls on the central axis of the third side of the isosceles triangle, that is, the central axis in the width direction of the top frame 21.
As shown in fig. 4-7, the test mechanism 3 includes a fixed plate 31, a water deflector 32, a drive assembly, a transmission assembly 36, a pulley 37, and an indicating assembly;
The fixed plate 31 is fixed between the supporting plates 13 on two sides through bolts, a plurality of drainage grooves 312 which are arranged along the length direction of the fixed plate 31 are formed in the top surface of the fixed plate 31, a drainage hole 311 which is arranged along the width direction of the fixed plate is formed in the fixed plate 31 in a penetrating mode, the drainage grooves 312 are communicated with the drainage hole 311, a vertical plate 313 is arranged in the middle of the bottom wall of the fixed plate 31 through screws, guide rods II 321 are arranged on two side walls of the vertical plate 313, the other end of each guide rod II 321 is connected with the supporting plate 13 on the same side, a water baffle 32 is arranged between the side walls of the fixed plate 31 in a sliding mode, the guide rods II 321 penetrate through the water baffle 32, push bars 4 are arranged on one sides of the water baffles 32 on two sides, two motors IV are arranged on one side walls of the supporting plates 13 through bolts, the ends of the output shafts of the motors IV are connected and fixed with the side walls of the push bars 4.
The fixing base I131, the fixing base II 132 and the fixing base III 133 are installed on the side wall of the other side of the supporting plate 13 from top to bottom sequentially through bolts, the fixing base I131 and the fixing base II 132 are symmetrically provided with two, the fixing base III 133 is provided with four groups and is divided into two groups, and the two fixing bases III 133 of the same group are distributed along the vertical direction.
The bottom both sides of the fixed plate 31 are provided with a driving assembly and a transmission assembly 36, and both sides of the vertical plate 313 are also provided with an indication assembly.
The drive assembly includes a rack 33, a gear 34 and a worm gear 35;
One end of the rack 33 is fixed in the middle of the bottom end of the water baffle 32 through a bolt, the other end of the rack 33 penetrates through the supporting plate 13 positioned on the same side with the rack 33, a limiting piece 331 is welded at one end of the rack 33, and integral ribs 332 are welded on the side walls of two sides of the rack 33, and the ribs 332 also penetrate through and slide between the inner walls of the supporting plate 13.
The gear 34 is meshed with the rack 33, the worm gear 35 is provided with two gears 34 positioned on the same side and the two worm gears 35 are connected and synchronized through a synchronizing shaft, the gear 34 is positioned between the two worm gears 35, and the first synchronizing shaft is rotatably arranged between the first fixing seats 131 on the two sides through a bearing.
Specifically, the water flow sprayed from the sprayer generates a lateral force on the water baffles 32 at two sides, so that the water baffles 32 move to one side along the fixed plate 31, the racks 33 are synchronously driven by the water baffles 32 to move to one side, the gears 34 synchronously rotate along with the movement of the racks 33, and the worm wheel 35 and the gears 34 are coaxially connected, so that the worm wheel 35 rotates along with the rotation of the gears 34.
The transmission assembly 36 comprises a worm 361, a screw three 362 and a lifting seat 363;
The worm 361 is meshed with the worm wheel 35;
The worm 361 and the screw rod three 362 are connected into a whole, the same second synchronizing shaft penetrates through the inside of the worm 361, the second synchronizing shaft rotates synchronously with the worm 361 and the screw rod three 362, the second synchronizing shaft rotates between two fixing seats three 133 arranged on the same vertical direction through bearings, the top end of the screw rod three 362 penetrates through and rotates to be arranged between the inner walls of the fixing seats two 132 (namely, the top end of the screw rod three 362 is in a non-threaded arrangement), a guide groove 134 which is vertically arranged and is in a T-shaped structure is formed in the side wall of the supporting plate 13, the lifting seat 363 is in a T-shaped structure, one end of the lifting seat 363 slides between the inner walls of the guide groove 134, and the screw rod three 362 penetrates through the lifting seat 363 and is in threaded transmission fit with the lifting seat 363.
Specifically, by using the synchronous rotation of the worm wheel 35, the worm 361 rotates together with the worm wheel, and the worm 361 is coaxially connected with the third screw 362, so that the third screw 362 rotates together with the worm 361, and under the action of the guide slot 134, the lifting seat 363 moves vertically and linearly along the guide slot 134 by the screw transmission action of the third screw 362 on the lifting seat 363.
The indicating assembly comprises a balance arm 38, a balancing weight 382 and an indicator 39;
the second fixing seat 132 is in a U-shaped structure, the pulley 37 is installed at the opening of the second fixing seat, and the first protruding seat is installed on one side wall of the lifting seat 363 through a screw.
Side grooves are formed in the vertical side walls on two sides of the vertical plate 313, a bottom groove is further formed in the middle of the bottom wall of the vertical plate 313, an indicator 39 is rotatably arranged in the bottom groove, a connecting sleeve 381 is rotatably arranged on one side of the side groove, a power supply source (see fig. 5) is arranged in the connecting sleeve 381, a synchronizing shaft III is connected between the connecting sleeves 381 on two sides, the synchronizing shaft III penetrates through and is rotatably arranged between the inner walls of the vertical plate 313, and one end of the indicator 39 is fixed on the outer wall of the synchronizing shaft III through key connection.
The balance arm 38 is fixed to two ends of the connecting sleeve 381 through screws, the second limiting block is mounted on the bottom wall of the balance arm 38 through screws, the wire holes 383 are formed in the balance arm 38 and the second limiting block, the balancing block 382 is arranged in a sliding mode along the length direction of the balance arm 38, the second boss is mounted on the bottom wall of the balancing block 382 through screws, a pull rope is connected between the first boss and the second boss, the pull rope is arranged through the pulley 37, and two ends of the pull rope are fixed to the first boss and the second boss through set screws respectively.
It should be noted that the balancing weights 382 are iron blocks, the weights of all the balancing weights 382 are equal, strip-shaped silicon steel sheets 384 arranged along the length direction of the balancing arms 38 are embedded in the side walls of the two sides of the balancing arms, the silicon steel sheets 384 are connected with a power supply through wires, the power supply is connected with a PLC (programmable logic controller) through an electric signal, in addition, a rotation angle sensor 341 is installed on a first synchronous shaft, the rotation angle sensor 341 is installed next to the gear 34, and the rotation angle sensor 341 is connected with the PLC through an electric signal.
Specifically, when the gear 34 rotates due to the movement of the rack 33, the rotation angle sensor 341 immediately senses the rotation signal of the first synchronizing shaft, and transmits the rotation signal to the PLC controller, the PLC controller controls the power supply to stop supplying power, so that the suction force between the balancing weight 382 and the balancing arm 38 disappears, and due to the synchronous rotation of the screw rod three 362, the lifting seat 363 moves linearly in the vertical direction, so as to drive the stretching pull-down, so that the balancing weight 382 can move synchronously along the balancing arm 38 along with the movement of one end of the pull rope, when the gear 34 does not rotate any more, the rotation signal on the rotation angle sensor 341 disappears, at this time, the PLC controller controls the power supply to start supplying power after the signal reaches the PLC controller, so that suction force is generated again between the balancing weight 382 and the balancing arm 38, the position of the balancing weight 382 is fixed at a certain position on the balancing arm 38, then according to the position change of the balancing weight 382 on the balancing arm 38 on two sides, the balancing arm 38 drives the connecting sleeve 381 to deflect synchronously, and then drives the indicating mark 39 to rotate.
When the balancing weight 382 is reset, the push bar 4 is used for pushing the water baffle 32 to move back to the original position, namely to the furthest output position of the motor four, in the process, the rack 33 moves along with the water baffle 32 in the opposite direction and drives the gear 34 to rotate in the opposite direction, then the worm wheel 35, the worm 361, the screw rod three 362 and the lifting seat 363 sequentially move in the opposite direction, meanwhile, the position of the balancing weight 382 needs to be manually adjusted along the balance arm 38 until the motor four is stopped and the pull rope is kept in a tight state.
Wherein, the nearest position of the push bar 4 from the supporting plate 13 is: the side wall of the push bar 4 facing the supporting plate 13 and one end wall of the water discharge groove 312 are positioned in the same vertical plane, namely, the push bar 4 is positioned above the edge of the water discharge groove 312; the farthest position of the push bar 4 from the supporting plate 13 is the position where the output shaft of the motor IV is located when extending to the farthest position.
In the process of the water impact action movement of the water baffle 32, the sprayed water flow directly acts on the vertical surface of the water baffle 32 obliquely downwards at first, along with the continuous movement of the water baffle 32, the contact position of the sprayed water and the water baffle 32 is continuously adjusted downwards until the sprayed water directly contacts with the top surface of the fixed plate 31, the water flow is directly left from the water drainage groove 312, flows out of the water inlet and outlet holes 311 or directly flows downwards along the surface of the fixed plate 31, namely, the rotation amplitude of the indicator 39 is minimum at the moment, and the swing amplitude of the indicator 39 in the process of the movement of the water baffle 32 is observed to judge the spray uniformity degree of the sprayer.
Working principle:
Firstly, manually installing a sprayer at the bottom of a mounting seat 26, arranging a water inlet pipe connected with a water supply source, then starting an adjusting component, controlling the sprayer to be adjusted to the central axis direction of a top frame 21 by utilizing the characteristic of an isosceles triangle, then driving the adjusting component to move to a position contacted with a limiting block to stop by displacement, wherein the sprayer is positioned right above the central position of a testing mechanism 3 at the moment, and then adjusting the vertical height of the sprayer according to requirements;
Then, after the position of the sprayer is adjusted, a water source is connected, water flow starts to spray outwards, the water flow impacts on the water baffle 32, and a transverse acting force is generated on the water baffle 32, so that the water baffle 32 starts to do linear motion along the fixed plate 31, further the rack 33 is driven to synchronously move to one side outside the supporting plate 13, along with the movement of the rack 33, the gear 34 rotates along with the gear 34, the worm wheel 35 and the gear 34 are coaxially arranged, so that the worm wheel 35 synchronously rotates along with the gear, the worm 361 drives the screw three 362 to synchronously rotate under the transmission effect of the worm wheel 35, and then the lifting seat 363 is controlled to do vertical downward linear motion along the guide groove 134 to drive the pull rope to pull down, so that the balancing weight 382 slides on the balancing arm 38;
Along with the change of the movement positions of the balancing weights 382 on the two sides, the balance arm 38 continuously adjusts the balance degree, so that the indicator 39 swings along with the balance degree, and when the sprayed water flow directly contacts with the top surface of the fixed plate 31, the swinging change of the indicator 39 in the whole process is observed and recorded, so as to judge the spraying uniformity degree, if the left and right swinging amplitudes of the indicator 39 are not greatly different, the spraying effect of the sprayer is relatively good, and if the swinging amplitude on one side is larger, the spraying uniformity of the sprayer is poor, and the inside of the dryer cannot be completely covered.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; may be directly connected, may be in communication with the interior of two elements or may be in interaction with two elements. The meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
The foregoing has described in detail a spray performance detection system for a spray dryer according to embodiments of the present application, and specific examples have been used herein to illustrate the principles and embodiments of the present application, where the foregoing examples are provided to assist in understanding the technical solution and core ideas of the present application; those of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.
Claims (8)
1. A spray performance detection system for a spray dryer, comprising:
The base (1), install the control terminal (11) with PLC controller on the base (1), and install two backup pads (13) and two support columns (14) on the base (1), place header tank (12) between backup pad (13) of both sides;
The conveying mechanism (2), the conveying mechanism (2) comprises a top frame (21), an adjusting component and a mounting seat (26);
The top frame (21) is fixed at the tops of the supporting plate (13) and the supporting column (14), the adjusting component is arranged in a sliding mode along the length direction of the top frame (21), the mounting seat (26) is arranged on one side of the bottom of the adjusting component, the sprayer is mounted at the bottom of the mounting seat (26), and the sprayer moves synchronously with the adjusting component along the central axis direction of the width of the top frame (21);
The testing mechanism (3) comprises a fixed plate (31), a water baffle (32), a driving assembly, a transmission assembly (36), a pulley (37) and an indicating assembly;
the sprayer stays right above the center position of the testing mechanism (3) during testing;
The fixed plate (31) is arranged between the supporting plates (13) on two sides along the horizontal direction, the water baffle (32) is arranged on the fixed plate (31) symmetrically, the water baffle (32) is arranged along the side wall of the fixed plate (31) in a sliding way, one end of the driving component is fixedly connected with the bottom of the water baffle (32), a vertical plate (313) is arranged in the middle of the bottom wall of the fixed plate (31), and two sides of the vertical plate (313) are respectively provided with the indicating component;
the transmission assembly (36) comprises a worm (361), a screw rod III (362) and a lifting seat (363), the worm (361) and the screw rod III (362) are connected into a whole, the worm (361) is meshed with the driving assembly, the lifting seat (363) is arranged in a sliding mode along the vertical direction of the supporting plate (13), the screw rod III (362) penetrates through the lifting seat (363) and is in threaded transmission with the lifting seat, and the pulley (37) is arranged on one side of the screw rod III (362);
The indicating assembly comprises two balance arms (38), a balancing weight (382) and an indicating mark (39), wherein the middle of the balance arms (38) at two sides is connected with a connecting sleeve (381), the indicating mark (39) and the connecting sleeve (381) are coaxially arranged, the balancing weight (382) is arranged in a sliding mode along the length direction of the balance arms (38), a pull rope which bypasses the pulley (37) is connected between the balancing weight (382) and the lifting seat (363), and the balancing weight (382) and the balance arms (38) can be fixed into a whole through suction.
2. The spray performance detection system for the spray dryer according to claim 1, wherein two connecting strips connected with the top frame (21) into a whole are installed between the side walls of the top frame (21), the two connecting strips are symmetrically arranged, a first screw (211) is further rotatably arranged between the side walls of the top frame (21), and a first limiting block is fixed on the top wall of one connecting strip.
3. A spray performance detection system for a spray dryer according to claim 2, wherein the adjustment assembly comprises a first slide plate (22), a first connection plate (23), a second connection plate (24) and a fixing bar (25);
The first sliding plate (22) is connected with the first connecting plate (23) into a whole, the bottom wall of the first connecting plate (23) is also provided with the second sliding plate (231), the first sliding plate (22) and the second sliding plate (231) are respectively arranged along the top surface and the side wall of one connecting bar in a sliding way, the first screw rod (211) penetrates through the second sliding plate (231) and is in threaded transmission with the second sliding plate, positioning rollers (232) which are in contact with the side wall of one connecting bar are arranged on two sides of the bottom of the first connecting plate (23), two guide rods (222) and a second screw rod (221) are arranged between the first sliding plate (22) and the fixed bar (25), the second connecting plate (24) slides between the two guide rods (222), the second screw rod (221) penetrates through the second connecting plate (24) and is in threaded transmission with the second connecting plate, and positioning rollers (241) are arranged on two sides of the bottom of the second connecting plate (24);
An adjusting arm I (233) and an adjusting arm II (242) with the same length are respectively and rotatably arranged at the middle positions of the top surfaces of the connecting plate I (23) and the connecting plate II (24), the adjusting arm I (233) and the other end of the adjusting arm II (242) are coaxially connected, and the mounting seat (26) is arranged below the connecting position of the adjusting arm I (233) and the adjusting arm II (242) in a lifting and adjusting mode along the vertical direction;
When the second positioning roller (241) is also contacted with the side wall of the connecting strip at the other side, the position of the mounting seat (26) is positioned on the central axis of the width of the top frame (21).
4. A spray performance detection system for a spray dryer according to claim 3, characterized in that the top surface of the fixing plate (31) is provided with a plurality of drainage grooves (312) arranged along the length direction of the fixing plate, the fixing plate (31) is internally provided with drainage holes (311) penetrating the fixing plate along the width direction of the fixing plate, the drainage grooves (312) are communicated with the drainage holes (311), two sides of the vertical plate (313) are horizontally provided with guide rods II (321), the other ends of the guide rods II (321) are fixed on the supporting plates (13) positioned on the same side with the guide rods II (321), the guide rods II (321) penetrate through the water baffle plates (32), and pushing strips (4) are arranged on one sides of the water baffle plates (32) on two sides in a linear direction.
5. A spray performance detection system for a spray dryer according to claim 4, characterized in that the drive assembly comprises a rack (33), a gear (34) and a worm gear (35);
One end of rack (33) is fixed in the middle of the bottom of breakwater (32), the other end of rack (33) runs through backup pad (13) and sets up, and all weld bead (332) on the both sides lateral wall of rack (33), bead (332) also run through and slide between the inner wall of backup pad (13), gear (34) and rack (33) intermeshing, worm wheel (35) are provided with two, gear (34) are located the centre of two worm wheels (35), install two fixing base I (131) of symmetry setting on the lateral wall of backup pad (13), install synchronizing shaft I between fixing base I (131) of both sides, gear (34) are connected in step through synchronizing shaft with two worm wheels (35).
6. The spray performance detection system for a spray dryer according to claim 5, wherein the inside of the worm (361) and the screw rod three (362) is penetrated with a synchronous shaft two which is connected with the worm and the screw rod three (362), two ends of the synchronous shaft two are respectively provided with a fixing seat three (133), a fixing seat two (132) with a U-shaped structure is further arranged on the side wall of the supporting plate (13) between the two fixing seats three (133) in the same vertical direction, the pulley (37) is arranged at the opening of the fixing seat two (132), wherein the circumference outer surface of the top end of the screw rod three (362) is provided with no screw thread, and the top end of the screw rod three (362) is penetrated and rotated to be arranged between the inner walls of the fixing seat two (132).
7. The spray performance detection system for the spray dryer according to claim 6, wherein side grooves are formed in vertical side walls on two sides of the vertical plate (313), a bottom groove is further formed in the middle of the bottom wall of the vertical plate (313), one end of the indicator (39) is rotatably arranged in the bottom groove, the connecting sleeve (381) is rotatably arranged on one side of the side groove, a power supply is arranged in the connecting sleeve (381), a synchronizing shaft three connected with the top ends of the connecting sleeves (381) on two sides and the indicator (39) is penetrated and integrally arranged, and the synchronizing shaft three is penetrated and rotatably arranged between the inner walls of the vertical plate (313);
a second limiting block is arranged on the bottom wall of the balance arm (38), wire holes (383) penetrating through the second limiting block are formed in the balance arm (38) and the second limiting block, the wire holes (383) are matched with the pull ropes, a second convex seat and a first convex seat are respectively arranged on the bottom wall of the balancing weight (382) and on one side wall of the lifting seat (363), and two ends of the pull ropes are respectively fixed in the first convex seat and the second convex seat;
silicon steel sheets (384) are embedded in the side walls of the two sides of the balance arm (38), the silicon steel sheets (384) are arranged along the length direction of the balance arm (38) and are in a strip-shaped structure, and the silicon steel sheets (384) are connected with a power supply through guiding.
8. The spray performance detection system for a spray dryer according to claim 7, wherein the first synchronizing shaft is further provided with a rotation angle sensor (341), when the first synchronizing shaft rotates along with the gear (34), the rotation angle sensor (341) senses a signal, suction force between the balancing weight (382) and the balancing arm (38) disappears, at this time, the balancing weight (382) can move along the length direction of the balancing arm (38) along with movement of the pull rope, and when the signal sensed by the rotation angle sensor (341) disappears, suction force between the balancing weight (382) and the balancing arm (38) is generated again and is connected with the balancing weight (382) into a whole, and at this time, the balancing weight (382) stops moving.
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| CN211148004U (en) * | 2019-10-31 | 2020-07-31 | 江苏农林职业技术学院 | Plant protection unmanned aerial vehicle spraying drift volume testing arrangement |
| CN213757999U (en) * | 2020-11-19 | 2021-07-23 | 华意压缩机(荆州)有限公司 | Cold water sprayer |
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| JP2011252743A (en) * | 2010-06-01 | 2011-12-15 | Nichiha Corp | Sprayer spraying state monitoring device |
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