CN103093671A - Installation of Reynolds experiment instrument - Google Patents
Installation of Reynolds experiment instrument Download PDFInfo
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- CN103093671A CN103093671A CN2013100300938A CN201310030093A CN103093671A CN 103093671 A CN103093671 A CN 103093671A CN 2013100300938 A CN2013100300938 A CN 2013100300938A CN 201310030093 A CN201310030093 A CN 201310030093A CN 103093671 A CN103093671 A CN 103093671A
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Abstract
The invention discloses installation of a Reynolds experiment instrument, and relates to the technical field of experiment instrument installation. The installation of the Reynolds experiment instrument is characterized in that a location mold is sleeved on a tracer needle, an angle iron bracket of a lower tracer needle clamp holder of an upper/lower tracer needle clamp holder is enabled to penetrate through clamp holder holes, the tracer needle is enabled to be placed in a tracer needle upper registration hole and a tracer needle lower registration hole, an experiment tube is placed in an experiment tube upper registration hole and an experiment tube lower registration hole, an experiment tube opening is placed in an experiment tube opening cavity, and bolts are utilized to penetrate through upper locating bolt seats and lower locating bolt seats so as to tighten two semi-circular cylinder blocks of the location mold. Bracket set bolts are adopted to tighten the angle iron bracket and a rotating arm, tubing clamp set bolts are adopted to tighten a tracer needle tubing clamp, and a rotating preloaded bolt is screwed up. Due to the installation technology, the concentricity of the tracer needle and the experiment tube can be guaranteed, and experiment data in accordance with Reynolds criterions used for judging over fluid flow types can be obtained in an experiment with the installation device is adopted.
Description
Technical field
The installation of reynolds test instrument relates to experimental apparatus field engineering field.
Background technology
Reynold's number is the accurate number of judgement flow pattern, if fluid at straight shape Flow In A Circular Tube, Reynold's number can be represented by the formula:
In formula, Re---Reynold's number, zero dimension; D---ips, mm;
U---rate of flow of fluid, m/s; ρ---fluid density, kg/m
3
μ---fluid viscosity; Pas.
For the particular fluid under uniform temperature, at specific Flow In A Circular Tube, Reynold's number is only relevant with rate of flow of fluid.
By newton law of viscosity:
In formula, μ---fluid viscosity; Pas; Y-pipe is vertical range radially, mm;
U---rate of flow of fluid, m/s.
The size of shear stress is directly proportional to the velocity gradient of flow direction to vertical vertical, and the viscosity, mu intrinsic to fluid is relevant, as can be known, because the viscosity of different fluid is different, fluid flows ducted when mobile, and the flow velocity on each concentric circles of caliber direction is all not identical.
Usually reynolds test instrument is to add water by pump in the constant voltage tank, under the state water pressure invariableness that keeps water spill-over stream, by spike then the tracer agent in the traced fluid storage tank on areas of permanent pressure top injected in the Reynold's number experiment tube by syringe needle, namely can observe the various flows deformation of fluid mobile laminar flow, excess flow and turbulent flow (also claiming turbulent flow) in pipe, record data calculate the measured value of Reynold's number.
The reynolds test instrument of prior art, Chinese patent 200710049057.0,201020215878.4,201020284487.8,200820107489.2,200410025778.4,89204903.0 and " Experiment of Principles of Chemical Engineering " (21 century institution of higher learning's teaching material, Science Press, Mu Zonggang chief editor) in experimental teaching material all unexposed spike pin center line in Reynolds experiment device and the experiment tube centerline of how making in the technical scheme of same straight line; The Reynolds experiment device that is now using also is difficult to the experiment tube centerline on the same straight line because of spike pin center line, next is the elongated flexible distortion of the thin syringe needle of spike needle tubing wall, therefore, the experiment that present college student is done only is called---the Reynolds lecture experiment, the Reynold's number deviation of measuring is very large, " Reynold's number " that also namely records by existing Reynolds experiment device can't reflect the pattern of flow of fluid, can only be the Reynolds lecture experiment.
Summary of the invention
For the deficiency that prior art exists, the objective of the invention is to make the central axis of spike pin and experiment tube central axis to keep point-blank, also namely guarantee the also concentricity of experiment tube of spike pin; The problem that also needs to solve the meticulous inconvenient clamping of spike pin for reaching this purpose; And be difficult to the problem of locating in installation process.For the present invention that achieves the above object adopts following technical scheme:
One, reynolds test instrument
1, reynolds test instrument comprises: traced fluid storage bottle 1, spike bottle rack 2, constant voltage tank 3, intake chamber 4, overflow groove 5, upper hose 6, run-down pipe 7, rising pipe 8, spinner-type flowmeter 9, surplus valve 10, flow regulation gate valve 11, low level hopper 12, ebullator 13, pump discharge valve 14, pump inlet valve 15, low level hopper outlet valve 16, movable framework 17, experiment tube 18, the experiment mouth of pipe 19, up and down spike needle holder 20, spike pin 21, traced fluid stream guiding tube 22, spike valve 23, spike pin neck 41, spike needle tubing 42, spike needle tubing wall 43, spike pin mouth 44, positioning module 100, on the spike pin, registration holes 101, upper cavity 102, upper positioning screw bolt seat 103, under the spike pin, registration holes 104, experiment tube oral cavity 105, on experiment tube, registration holes 106, lower chamber 107, lower positioning screw bolt seat 108, under experiment tube, registration holes 109, clamper hole 110, form 111, the left plate washer 201 of constant voltage tank, pivot arm bearing 202, pivot arm 203, angle iron bracket 204, spike needle tubing card 205, pipe clamp tight fixed bolt 206, support tight fixed bolt 207, rotation tight fixed bolt 208, straight shape bolt hole 371, expandable washer 372, support locknut 373, it is characterized in that: traced fluid is store bottle 1 bottom spike valve 23 is housed, traced fluid storage bottle 1 is positioned on spike bottle rack 2, spike bottle rack 2 is welded to connect in constant voltage tank 3 tops, spike valve 23 connects traced fluid stream guiding tube 22, low level hopper 12 bottoms connect low level hopper outlet valve 16, low level hopper outlet valve 16 connects upper hose 6, pump inlet valve 15 ebullators 13 are housed on upper hose 6, pump discharge valve 14, ebullator 13 is between pump inlet valve 15 and pump discharge valve 14, upper hose 6 connects intake chamber 4 bottoms, overflow groove 5 bottoms connect run-down pipe 7, experiment tube 18 connects rising pipe 8, spinner-type flowmeter 9 is housed on rising pipe 8, flow regulation gate valve 11 is housed on rising pipe 8,
Described up and down spike needle holder 20 is identical two covers of shape scantling, and up and down spike needle holder 20 is individually fixed in middle and upper part and the middle and lower part of constant voltage tank 3 left plate washers; Traced fluid stream guiding tube 22 connects spike pin neck 41, spike pin 21 is fixed on up and down spike needle holder 20 by spike needle tubing card 205 and pipe clamp tight fixed bolt 206, spike pin mouth 44 is arranged in the experiment mouth of pipe 19, spike pin mouth 44 bottoms are lower than testing on the mouth of pipe 19 along surface level, spike pin 21 is concentric with the experiment mouth of pipe 19, experiment tube 18, and the experiment mouth of pipe 19 connects experiment tubes 18;
Described up and down spike needle holder 20 comprises the left plate washer 201 of constant voltage tank, pivot arm bearing 202, pivot arm 203, angle iron bracket 204, spike needle tubing card 205, pipe clamp tight fixed bolt 206, support tight fixed bolt 207, rotation tight fixed bolt 208, the left plate washer 201 of constant voltage tank connects pivot arm bearing 202, pivot arm bearing 202 connects pivot arm 203 by rotation tight fixed bolt 208, pivot arm 203 is by support tight fixed bolt 207 connecting angle iron supports 204, and spike pin 21 is fixed on angle iron bracket 204 by pipe clamp tight fixed bolt 206 and spike needle tubing card 205.
2, described reynolds test instrument is characterized in that: described experiment tube 18 is straight shape smooth glass pipe.
3, described reynolds test instrument is characterized in that: the described experiment mouth of pipe 19 is upper wealthy lower 45 ° of narrow oviducts, and the caliber of the caliber=experiment tube 18 at the bottom of oviduct connects experiment tube 18 at the bottom of the oviduct of the experiment mouth of pipe 19.
4, described reynolds test instrument is characterized in that: have straight shape slotted hole 371, support tight fixed bolt 207 to pass straight shape slotted hole 371 on described pivot arm 203 and are connected with the support locknut by expandable washer 372 angle iron bracket 204 is connected with pivot arm 203.
5, described reynolds test instrument is characterized in that: described pivot arm bearing 202 is welded to connect with the left plate washer 201 of constant voltage tank.
6, described reynolds test instrument, described spike pin 21, it is characterized in that: spike pin 21 is comprised of spike pin neck 41, spike needle tubing 42, spike needle tubing wall 43, spike pin mouth 44, spike pin neck 41 is the cylinder boss of thin-walled, spike needle tubing 42 is smooth straight shape cylindrical tube, caliber=the 0.3mm of spike needle tubing 42, external diameter=the 2.3mm of spike pin neck 41, thickness=the 4mm of spike needle tubing wall 43, spike pin mouth 44 tops and spike pin main body are isometrical, the attenuation gradually of bottom tube wall, spike pin mouth 44 tube walls are bell, the external diameter=2.3mm of spike pin mouth 44 endpiece.
7, described reynolds test instrument is characterized in that: described spike pin 21 is stainless steel material.
8, positioning module 100, comprise registration holes 101 on the spike pin, upper cavity 102, upper positioning screw bolt seat 103, under the spike pin, registration holes 104, experiment tube oral cavity 105, on experiment tube, registration holes 106, lower chamber 107, lower positioning screw bolt seat 108, under experiment tube, registration holes 109, clamper hole 110, form 111, it is characterized in that: positioning module 100 profiles are semicylinder, there is registration holes 101 on the spike pin of semicolumn on positioning module 100 tops, top is the upper cavity 102 of semicolumn, upper cavity 102 lower ends are registration holes 104 under the spike pin of semicolumn, positioning module 100 middle parts are experiment tube oral cavities 105 of semicolumn, 105 lower ends, experiment tube oral cavity are registration holes 106 on the experiment tube of semicolumn, on experiment tube, registration holes 106 belows are the lower chamber 107 of semicolumn, lower chamber 107 bottoms are registration holes 109 under the experiment tube of semicolumn, clamper hole 110 is positioned on the cylindrical wall of upper cavity 102 bottoms, form 111 is oblong hole slot, form 111 is positioned on positioning module 100 cylindrical wall.
9, a cover positioning module is two shapes, the identical positioning module 100 of size.
Two, the installation of reynolds test instrument
1, the installation of reynolds test instrument is characterized in that: install by following steps:
Step 1: at low level hopper 12 bottom welding low level hopper outlet valves 16, low level hopper 12 is welded on movable framework 17 bottom frameworks;
Step 2: welding intake chamber 4 and overflow groove 5 in constant voltage tank 3, then will weld the constant voltage tank 3 of getting well and be welded on the top frame of movable framework 17 bottom frameworks;
Step 3: upper hose 6 stage casing attaching ebullator 13, one ends are connected pump inlet valve 15, and the other end connects pump discharge valve 14;
Step 4: ebullator 13 is placed on movable framework 17 bottom frameworks, and an end that upper hose 6 is equipped with pump inlet valve 15 is connected with low level hopper outlet valve 16, upper hose 6 is equipped with pump discharge valve 14 is connected with intake chamber 4 bottom weldings;
Step 5: overflow groove 5 bottoms installations are connected the run-down pipe 7 that surplus valve 10 is housed;
Step 6: spike bottle rack 2 is welded in constant voltage tank 3 tops, traced fluid bottle 1 is placed on spike bottle rack 2;
Step 7: experiment tube 18 is fixed on movable framework 17 afterframes, with spinner-type flowmeter 9 flow regulation gate valves 11 are installed on rising pipe 8, experiment tube 18 is connected rising pipe 8;
Step 8: pivot arm bearing 202 is welded on the plate washer of the left side of constant voltage tank 3, pivot arm 203 use rotation pretension bolts 208 are connected with pivot arm bearing 202, penetrate support tight fixed bolt 207 and add expandable washer 372 in the straight shape bolt hole 371 of pivot arm 203, angle iron bracket 204 is connected cover upper bracket tight fixed bolt 207 pretensions with pivot arm 203;
Step 9: spike pin 21 is placed in spike needle tubing card 205 on angle iron bracket 204, with pipe clamp tight fixed bolt 206 pretensions;
Step 10: positioning module 100 is sleeved on spike pin 21, the angle iron bracket 204 of the lower spike needle holder of order up and down spike needle holder 20 passes clamper hole 110, make spike pin 21 be placed on the spike pin registration holes 104 under registration holes 101 and spike pin, experiment tube 18 is placed on experiment tube under registration holes 106 and experiment tube among registration holes 109, to test the mouth of pipe 19 is placed among experiment tube oral cavity 105, pass upper positioning screw bolt seat 103 and lower positioning screw bolt seat 108 with bolt, with the tightening of 100 two semicircle right cylinders of positioning module;
Step 11: with angle iron bracket 204 and pivot arm 203 tightenings, with 205 tightenings of spike needle tubing card, pretension bolt 208 is rotated in tightening with pipe clamp tight fixed bolt 206 with support tight fixed bolt 207;
Step 12: connect traced fluid stream guiding tube 22 and spike pin neck 41;
Step 13: traced fluid stream guiding tube 22 is connected with spike valve 23.
Three, reynolds test instrument positioning module
9, a cover positioning module 100 is identical two semicylinders of outer shape, size.
Description of drawings
Fig. 1: reynolds test instrument front view;
Fig. 2: the installation front view of reynolds test instrument;
Fig. 3: reynolds test instrument A-A broken section enlarged drawing;
Fig. 4: B is to partial enlarged drawing;
Fig. 5: spike pin profile;
Fig. 6: the flow state schematic diagram of fluid in pipe;
Fig. 7: positioning module sectional view;
Fig. 8: positioning module front view;
in figure: 1 traced fluid storage bottle, 2 spike bottle racks, 3 constant voltage tanks, 4 intake chambers, 5 overflow grooves, 6 upper hoses, 7 run-down pipes, 8 rising pipes, 9 spinner-type flowmeters, 10 surplus valves, 11 flow regulation gate valves, 12 low level hoppers, 13 ebullators, 14 pump discharge valves, 15 pump inlet valves, 16 low level hopper outlet valves, 17 movable frameworks, 18 experiment tubes, the 19 experiment mouths of pipe, spike needle holder Shang Xia 20, 21 spike pins, 22 traced fluid stream guiding tube, 23 spike valves, 41 spike pin necks, 42 spike needle tubings, 43 spike needle tubing walls, 44 spike pin mouths, 100 positioning modules, registration holes on 101 spike pins, 102 upper cavities, positioning screw bolt seat on 103, registration holes under 104 spike pins, 105 experiment tube oral cavities, registration holes on 106 experiment tubes, 107 lower chambers, 108 times positioning screw bolt seats, registration holes under 109 experiment tubes, 110 clamper holes, 111 forms, the 201 left plate washers of constant voltage tank, 202 pivot arm bearings, 203 pivot arms, 204 angle iron brackets, 205 spike needle tubing cards, 206 pipe clamp tight fixed bolts, 207 support tight fixed bolts, 208 rotation tight fixed bolts, 371 straight shape bolts hole, 372 expandable washers, 373 support locknuts.
Beneficial effect
1, overcome in the Reynolds experiment device of prior art, because the center line of spike pin center line and experiment tube departs from, and the verticality of spike pin is difficult to regulate fixing, therefore, the conclusion that draws is very large with the Reynold's number dispersion of actual judgement Fluid Flow in A type, and problem on the low side, use field engineering of the present invention, can guarantee the center line of the center line of spike pin and experiment tube on the same line, test with this device and can obtain the experimental data that matches with the Reynold's number that judges the Fluid Flow in A type;
2, the reynolds test instrument of installing by the present invention is tested, and can further confirm the decision criteria-Reynold's number of Fluid Flow in A type.
Embodiment
Embodiment 1
1, reynolds test instrument comprises: traced fluid storage bottle 1, spike bottle rack 2, constant voltage tank 3, intake chamber 4, overflow groove 5, upper hose 6, run-down pipe 7, rising pipe 8, spinner-type flowmeter 9, surplus valve 10, flow regulation gate valve 11, low level hopper 12, ebullator 13, pump discharge valve 14, pump inlet valve 15, low level hopper outlet valve 16, movable framework 17, experiment tube 18, the experiment mouth of pipe 19, up and down spike needle holder 20, spike pin 21, traced fluid stream guiding tube 22, spike valve 23, spike pin neck 41, spike needle tubing 42, spike needle tubing wall 43, spike pin mouth 44, positioning module 100, on the spike pin, registration holes 101, upper cavity 102, upper positioning screw bolt seat 103, under the spike pin, registration holes 104, experiment tube oral cavity 105, on experiment tube, registration holes 106, lower chamber 107, lower positioning screw bolt seat 108, under experiment tube, registration holes 109, clamper hole 110, form 111, the left plate washer 201 of constant voltage tank, pivot arm bearing 202, pivot arm 203, angle iron bracket 204, spike needle tubing card 205, pipe clamp tight fixed bolt 206, support tight fixed bolt 207, rotation tight fixed bolt 208, straight shape bolt hole 371, expandable washer 372, support locknut 373, it is characterized in that: traced fluid is store bottle 1 bottom spike valve 23 is housed, traced fluid storage bottle 1 is positioned on spike bottle rack 2, spike bottle rack 2 is welded to connect in constant voltage tank 3 tops, spike valve 23 connects traced fluid stream guiding tube 22, low level hopper 12 bottoms connect low level hopper outlet valve 16, low level hopper outlet valve 16 connects upper hose 6, pump inlet valve 15 ebullators 13 are housed on upper hose 6, pump discharge valve 14, ebullator 13 is between pump inlet valve 15 and pump discharge valve 14, upper hose 6 connects intake chamber 4 bottoms, overflow groove 5 bottoms connect run-down pipe 7, experiment tube 18 connects rising pipe 8, spinner-type flowmeter 9 is housed on rising pipe 8, flow regulation gate valve 11 is housed on rising pipe 8,
Described up and down spike needle holder 20 is identical two covers of shape scantling, and up and down spike needle holder 20 is individually fixed in middle and upper part and the middle and lower part of constant voltage tank 3 left plate washers; Traced fluid stream guiding tube 22 connects spike pin neck 41, spike pin 21 is fixed on up and down spike needle holder 20 by spike needle tubing card 205 and pipe clamp tight fixed bolt 206, spike pin mouth 44 is arranged in the experiment mouth of pipe 19, spike pin mouth 44 bottoms are lower than testing on the mouth of pipe 19 along surface level, spike pin 21 is concentric with the experiment mouth of pipe 19, experiment tube 18, and the experiment mouth of pipe 19 connects experiment tubes 18;
Described up and down spike needle holder 20 comprises the left plate washer 201 of constant voltage tank, pivot arm bearing 202, pivot arm 203, angle iron bracket 204, spike needle tubing card 205, pipe clamp tight fixed bolt 206, support tight fixed bolt 207, rotation tight fixed bolt 208, the left plate washer 201 of constant voltage tank connects pivot arm bearing 202, pivot arm bearing 202 connects pivot arm 203 by rotation tight fixed bolt 208, pivot arm 203 is by support tight fixed bolt 207 connecting angle iron supports 204, and spike pin 21 is fixed on angle iron bracket 204 by pipe clamp tight fixed bolt 206 and spike needle tubing card 205.
2, described reynolds test instrument is characterized in that: described experiment tube 18 is straight shape smooth glass pipe.
3, described reynolds test instrument is characterized in that: the described experiment mouth of pipe 19 is upper wealthy lower 45 ° of narrow oviducts, and the caliber of the caliber=experiment tube 18 at the bottom of oviduct connects experiment tube 18 at the bottom of the oviduct of the experiment mouth of pipe 19.
4, described reynolds test instrument is characterized in that: have straight shape slotted hole 371, support tight fixed bolt 207 to pass straight shape slotted hole 371 on described pivot arm 203 and are connected with the support locknut by expandable washer 372 angle iron bracket 204 is connected with pivot arm 203.
5, described reynolds test instrument is characterized in that: described pivot arm bearing 202 is welded to connect with the left plate washer 201 of constant voltage tank.
6, described reynolds test instrument, described spike pin 21, it is characterized in that: spike pin 21 is comprised of spike pin neck 41, spike needle tubing 42, spike needle tubing wall 43, spike pin mouth 44, spike pin neck 41 is the cylinder boss of thin-walled, spike needle tubing 42 is smooth straight shape cylindrical tube, caliber=the 0.3mm of spike needle tubing 42, external diameter=the 2.3mm of spike pin neck 41, thickness=the 4mm of spike needle tubing wall 43, spike pin mouth 44 tops and spike pin main body are isometrical, the attenuation gradually of bottom tube wall, spike pin mouth 44 tube walls are bell, the external diameter=2.3mm of spike pin mouth 44 endpiece.
7, described reynolds test instrument is characterized in that: described spike pin 21 is stainless steel material.
8, positioning module 100, comprise registration holes 101 on the spike pin, upper cavity 102, upper positioning screw bolt seat 103, under the spike pin, registration holes 104, experiment tube oral cavity 105, on experiment tube, registration holes 106, lower chamber 107, lower positioning screw bolt seat 108, under experiment tube, registration holes 109, clamper hole 110, form 111, it is characterized in that: positioning module 100 profiles are semicylinder, there is registration holes 101 on the spike pin of semicolumn on positioning module 100 tops, top is the upper cavity 102 of semicolumn, upper cavity 102 lower ends are registration holes 104 under the spike pin of semicolumn, positioning module 100 middle parts are experiment tube oral cavities 105 of semicolumn, 105 lower ends, experiment tube oral cavity are registration holes 106 on the experiment tube of semicolumn, on experiment tube, registration holes 106 belows are the lower chamber 107 of semicolumn, lower chamber 107 bottoms are registration holes 109 under the experiment tube of semicolumn, clamper hole 110 is positioned on the cylindrical wall of upper cavity 102 bottoms, form 111 is oblong hole slot, form 111 is positioned at that on positioning module 100 cylindrical wall, (the effect one of form 111 can intuitively be observed the position of spike pin 21 and experiment tube 18 by form 111, it two is convenient to experiment tube 18 and is fixed on movable framework 17 afterframes).
9, a cover positioning module 100 is two shapes, the identical positioning module 100 of size.
Embodiment 2
1, the installation of reynolds test instrument is characterized in that: install by following steps:
Step 1: at low level hopper 12 bottom welding low level hopper outlet valves 16, low level hopper 12 is welded on movable framework 17 bottom frameworks;
Step 2: welding intake chamber 4 and overflow groove 5 in constant voltage tank 3, then will weld the constant voltage tank 3 of getting well and be welded on the top frame of movable framework 17 bottom frameworks;
Step 3: upper hose 6 stage casing attaching ebullator 13, one ends are connected pump inlet valve 15, and the other end connects pump discharge valve 14;
Step 4: ebullator 13 is placed on movable framework 17 bottom frameworks, and an end that upper hose 6 is equipped with pump inlet valve 15 is connected with low level hopper outlet valve 16, upper hose 6 is equipped with pump discharge valve 14 is connected with intake chamber 4 bottom weldings;
Step 5: overflow groove 5 bottoms installations are connected the run-down pipe 7 that surplus valve 10 is housed;
Step 6: spike bottle rack 2 is welded in constant voltage tank 3 tops, traced fluid bottle 1 is placed on spike bottle rack 2;
Step 7: experiment tube 18 is fixed on movable framework 17 afterframes, with spinner-type flowmeter 9 flow regulation gate valves 11 are installed on rising pipe 8, experiment tube 18 is connected rising pipe 8;
Step 8: pivot arm bearing 202 is welded on the plate washer of the left side of constant voltage tank 3, pivot arm 203 use rotation pretension bolts 208 are connected with pivot arm bearing 202, penetrate support tight fixed bolt 207 and add expandable washer 372 in the straight shape bolt hole 371 of pivot arm 203, angle iron bracket 204 is connected cover upper bracket tight fixed bolt 207 pretensions with pivot arm 203;
Step 9: spike pin 21 is placed in spike needle tubing card 205 on angle iron bracket 204, with pipe clamp tight fixed bolt 206 pretensions;
step 10: positioning module 100 is sleeved on spike pin 21, the angle iron bracket 204 of the lower spike needle holder of order up and down spike needle holder 20 passes clamper hole 110, make spike pin 21 be placed on the spike pin registration holes 104 under registration holes 101 and spike pin, experiment tube 18 is placed on experiment tube under registration holes 106 and experiment tube among registration holes 109, (guaranteeing the concentricity of spike pin and experiment tube with this), to test the mouth of pipe 19 is placed among experiment tube oral cavity 105, pass upper positioning screw bolt seat 103 and lower positioning screw bolt seat 108 with bolt, with the tightening of 100 two semicircle right cylinders of positioning module,
Step 11: with angle iron bracket 204 and pivot arm 203 tightenings, use pipe clamp tight fixed bolt 206 with 205 tightenings of spike needle tubing card with support tight fixed bolt 207, (spike pin 21 is fixed), tightening rotation pretension bolt 208;
Step 12: connect traced fluid stream guiding tube 22 and spike pin neck 41;
Step 13: traced fluid stream guiding tube 22 is connected with spike valve 23.
Embodiment 3
positioning module 100, comprise registration holes 101 on the spike pin, upper cavity 102, upper positioning screw bolt seat 103, under the spike pin, registration holes 104, experiment tube oral cavity 105, on experiment tube, registration holes 106, lower chamber 107, lower positioning screw bolt seat 108, under experiment tube, registration holes 109, clamper hole 110, form 111, it is characterized in that: positioning module 100 profiles are semicylinder, there is registration holes 101 on the spike pin of semicolumn on positioning module 100 tops, top is the upper cavity 102 of semicolumn, upper cavity 102 lower ends are registration holes 104 under the spike pin of semicolumn, positioning module 100 middle parts are experiment tube oral cavities 105 of semicolumn, 105 lower ends, experiment tube oral cavity are registration holes 106 on the experiment tube of semicolumn, on experiment tube, registration holes 106 belows are the lower chamber 107 of semicolumn, lower chamber 107 bottoms are registration holes 109 under the experiment tube of semicolumn, clamper hole 110 is positioned on the cylindrical wall of upper cavity 102 bottoms, form 111 is oblong hole slot, be positioned on positioning module 100 cylindrical wall, the external diameter of the diameter of registration holes 104=spike pin 21 under the diameter of registration holes 101=spike pin on the spike pin, the external diameter of the diameter=experiment tube 18 of registration holes 109 under the diameter=experiment tube of registration holes 106 on experiment tube, on the spike pin under registration holes 101, spike pin on registration holes 104, experiment tube under registration holes 106, experiment tube the center line of registration holes 109 on the same straight line.
Be those skilled in the art's technology except the disclosed technical scheme of this instructions, referring to " Experiment of Principles of Chemical Engineering " (21 century institution of higher learning's teaching material, Science Press, Mu Zonggang chief editor)
Claims (1)
1. the installation of reynolds test instrument is characterized in that: install by following steps:
Step 1: at low level hopper bottom welding low level hopper outlet valve, the low level hopper is welded on the movable framework bottom framework;
Step 2: welding intake chamber and overflow groove in the constant voltage tank, then will weld the constant voltage tank of getting well and be welded on the top frame of movable framework bottom framework;
Step 3: with upper hose stage casing attaching ebullator, an end connects the pump inlet valve, and the other end connects the pump discharge valve;
Step 4: ebullator is placed on the movable framework bottom framework, and an end that upper hose is equipped with the pump inlet valve is connected with low level hopper outlet valve, upper hose is equipped with the pump discharge valve is connected with the intake chamber bottom welding;
Step 5: isopipe root is installed the run-down pipe that surplus valve is equipped with in connection;
Step 6: the spike bottle rack is welded in the constant voltage sink top, the traced fluid bottle is placed on the spike bottle rack;
Step 7: experiment tube is fixed on the movable framework afterframe, with spinner-type flowmeter flow regulation gate valve is installed on rising pipe, experiment tube is connected rising pipe;
Step 8: the pivot arm bearing is welded on the plate washer of the left side of constant voltage tank, pivot arm is connected with the pivot arm bearing with the rotation pretension bolt, penetrate the support tight fixed bolt and add expandable washer in the straight shape bolt hole of pivot arm, angle iron bracket is connected cover upper bracket tight fixed bolt pretension with pivot arm;
Step 9: the spike pin is placed in spike needle tubing card on angle iron bracket, with pipe clamp tightening tools for bolts ' pretension;
Step 10: positioning module is sleeved on the spike pin, the angle iron bracket of the lower spike needle holder of order up and down spike needle holder passes the clamper hole, make the spike pin be placed on the spike pin registration holes under registration holes and spike pin, experiment tube is placed on experiment tube under registration holes and experiment tube among registration holes, to test the mouth of pipe is placed among the experiment tube oral cavity, pass upper positioning screw bolt seat and lower positioning screw bolt seat with bolt, with the tightening of two semicircle right cylinders of positioning module;
Step 11: with angle iron bracket and pivot arm tightening, with the pipe clamp tight fixed bolt, that spike needle tubing chucking is fixed with the support tight fixed bolt, tightening rotation pretension bolt;
Step 12: connect traced fluid stream guiding tube and spike pin neck;
Step 13: the traced fluid stream guiding tube is connected with the spike valve.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102982710A (en) * | 2012-12-31 | 2013-03-20 | 济南大学 | Reynolds experiment apparatus |
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| CN103093671B (en) | 2015-01-21 |
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