CN103077643B - Mounting and positioning die for Reynolds experiment instrument - Google Patents
Mounting and positioning die for Reynolds experiment instrument Download PDFInfo
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- CN103077643B CN103077643B CN201310030546.7A CN201310030546A CN103077643B CN 103077643 B CN103077643 B CN 103077643B CN 201310030546 A CN201310030546 A CN 201310030546A CN 103077643 B CN103077643 B CN 103077643B
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Abstract
The invention discloses a mounting and positioning die for a Reynolds experiment instrument, relating to the technical field of mounting and positioning dies of experiment instruments. The mounting and positioning die is characterized in that the mounting and positioning die for the Reynolds experiment instrument is semicylindrical, the top end of the mounting and positioning die is provided with an upper tracing needle alignment hole, a semicylindrical upper cavity is provided below the upper tracing needle alignment hole, and the lower end of the upper cavity is provided with a lower semicylindrical needle alignment hole; a semicylindrical experiment pipe orifice cavity is provided below the lower tracing needle alignment hole, the lower end of the experiment orifice cavity is provided with an upper semicylindrical experiment pipe alignment hole, a semicylindrical lower cavity body is formed below the upper experiment pipe alignment hole, and the bottom end of the lower cavity is provided with a lower semicylindrical experiment pipe alignment hole; a clamp holder hole is positioned in the cylindrical wall of the lower part of the upper cavity; a projection of a window is a rectangular and positioned in the cylindrical wall of the mounting and positioning die of the Reynolds experiment instrument, wherein the upper end and the lower end of the rectangular are semicircularly tangential; and the diameter of each of the upper tracing needle alignment hole and the lower tracing needle alignment hole is equal to the outer diameter of a tracing needle, and the diameter of each of the upper experiment pipe alignment hole and the lower experiment pipe alignment hole is equal to the outer diameter of an experiment pipe. The mounting and positioning die for the Reynolds experiment instrument has the characteristic of easy processing and mounting.
Description
Technical field
Reynolds test instrument is installed the installation positioning module technical field that positioning module relates to experiment instrument.
Background technology
Reynold's number is the accurate number that judges 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, known, due to the viscosity difference of different fluid, fluid, when mobile, flows ducted, and the flow velocity on the each concentric circles of caliber direction is all not identical.
Conventionally reynolds test instrument is to be added water in constant voltage tank by pump, keeping under the state water pressure invariableness of water spill-over stream, by spike then the tracer agent in the traced fluid storage tank on top, areas of permanent pressure injected in Reynold's number experiment tube by syringe needle, 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 now using is also because spike pin center line is difficult to experiment tube centerline on same straight line, next is the elongated flexible distortion of the thin syringe needle of spike needle tubing wall, therefore, the experiment that college student does at present is only called---Reynolds lecture experiment, the Reynold's number deviation of measuring is very large, also " Reynold's number " recording by existing Reynolds experiment device cannot reflect the pattern of flow of fluid, can only be Reynolds lecture experiment.
Summary of the invention
The deficiency existing for prior art, one of object of the present invention is that solution spike pin center line and experiment tube center are difficult to remain on the problem on same straight line, ensures that spike pin center line and experiment tube centerline are on same straight line: two of object of the present invention is to solve also should be easy to processing and fabricating for reaching this object.
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, upper and lower 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, reynolds test instrument is installed positioning module 100, registration holes 101 on spike pin, upper cavity 102, upper positioning screw bolt seat 103, registration holes 104 under spike pin, experiment tube oral cavity 105, registration holes 106 on experiment tube, lower chamber 107, lower positioning screw bolt seat 108, registration holes 109 under experiment tube, 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: spike valve 23 is equipped with in traced fluid storage bottle 1 bottom, 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,
The described needle holder of spike up and down 20 is identical two covers of shape scantling, and upper and lower 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 upper and lower 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 tube 18;
The described needle holder of spike up and down 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: on described pivot arm 203, have straight shape slotted hole 371, support tight fixed bolt 207 with support locknut 373, angle iron bracket 204 to be connected with pivot arm 203 by expandable washer 372 through straight shape slotted hole 371.
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 by spike pin neck 41, spike needle tubing 42, spike needle tubing wall 43, spike pin mouth 44 forms, the cylinder boss that spike pin neck 41 is 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, external diameter=the 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.
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: weld intake chamber 4 and overflow groove 5 in constant voltage tank 3, then the constant voltage tank 3 having welded is welded on the top frame of movable framework 17 bottom frameworks;
Step 3: by upper hose 6 stage casing attaching ebullators 13, one end connects 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 the one end of upper hose 6 being equipped with to pump inlet valve 15 is connected with low level hopper outlet valve 16, upper hose 6 is equipped with to pump discharge valve 14 and is connected with intake chamber 4 bottom weldings;
Step 5: overflow groove 5 bottoms are installed and connected the run-down pipe 7 that surplus valve 10 is housed;
Step 6: spike bottle rack 2 is welded in to 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, by spinner-type flowmeter 9 flow regulation gate valves 11 are installed on rising pipe 8, experiment tube 18 is connected to 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, in the straight shape bolt hole 371 of pivot arm 203, penetrate support tight fixed bolt 207 and add expandable washer 372, angle iron bracket 204 is connected to cover upper bracket tight fixed bolt 207 pretensions with pivot arm 203;
Step 9: spike pin 21 is placed in to the spike needle tubing card 205 on angle iron bracket 204, with pipe clamp tight fixed bolt 206 pretensions;
Step 10: reynolds test instrument is installed to positioning module 100 and be sleeved on spike pin 21, make the angle iron bracket 204 of the lower spike needle holder of upper and lower spike needle holder 20 pass clamper hole 110, make spike pin 21 be placed on 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 that with this spike pin center line in Reynolds experiment device and experiment tube centerline are in same straight line), the experiment mouth of pipe 19 is placed among experiment tube oral cavity 105, with bolt through upper positioning screw bolt seat 103 and lower positioning screw bolt seat 108, reynolds test instrument is installed to the tightening of 100 two semicircle right cylinders of positioning module,
Step 11: by angle iron bracket 204 and pivot arm 203 tightenings, use pipe clamp tight fixed bolt 206 by 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.
Three, reynolds test instrument is installed positioning module
1, reynolds test instrument is installed positioning module, comprise registration holes 101 on spike pin, upper cavity 102, upper positioning screw bolt seat 103, registration holes 104 under spike pin, experiment tube oral cavity 105, registration holes 106 on experiment tube, lower chamber 107, lower positioning screw bolt seat 108, registration holes 109 under experiment tube, clamper hole 110, form 111, it is characterized in that: it is semicylinder that reynolds test instrument is installed positioning module 100 profiles, reynolds test instrument is installed positioning module 100 tops registration holes 101 on the spike pin of semicolumn, the upper cavity 102 that on spike pin, the below of registration holes 101 is semicolumn, upper cavity 102 lower ends are registration holes 104 under the spike pin of semicolumn, under spike pin, the below of registration holes 104 is experiment tube oral cavities 105 of semicolumn, 105 lower ends, experiment tube oral cavity are registration holes 106 on the experiment tube of semicolumn, the lower chamber 107 that on experiment tube, registration holes 106 belows are semicolumn, registration holes 109 under the experiment tube that lower chamber 107 bottoms are semicolumn, clamper hole 110 is positioned on the semicylinder of upper cavity 102 bottoms, the upper and lower two ends that are projected as of form 111 are the tangent rectangle of semicircle, being positioned at reynolds test instrument installs on positioning module 100 semicylinders, on spike pin, under the diameter of registration holes 101, spike pin, the diameter of registration holes 104 and the external diameter of spike pin 21 equate, on experiment tube, under the diameter of registration holes 106, experiment tube, the external diameter of the diameter of registration holes 109 and experiment tube 18 equates, on 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 same straight line.
2, a set of reynolds test instrument installation positioning module 100 is identical two semicylinders of outer shape, size.
3, the diameter in described clamper hole 110 is wide 2.5～5 times of angle iron bracket 204.
4, described form 111 wide is 1.8～3 times of experiment tube 18 diameters.
Brief description of the 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: reynolds test instrument is installed positioning module sectional view;
Fig. 8: reynolds test instrument is installed 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 reynolds test instruments are installed positioning module, 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 left plate washer of 201 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 spike pin in prior art Reynolds experiment device is thin and long, flexible, after installing, center line and the experiment tube center line of spike pin are difficult to ensure on same straight line, and spike pin be difficult to regulate and fixing, the conclusion that experiment draws judges that with actual the Reynold's number deviation of fluid pattern of flow is large, apply field engineering of the present invention, can guarantee the concentricity of spike pin and experiment tube, test the Reynold's number that can draw with judging fluid pattern of flow with this device and match;
2,, by the experiment of apparatus of the present invention, further confirm the decision criteria-Reynold's number of fluid pattern of flow.
Embodiment
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, upper and lower 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, reynolds test instrument is installed positioning module 100, registration holes 101 on spike pin, upper cavity 102, upper positioning screw bolt seat 103, registration holes 104 under spike pin, experiment tube oral cavity 105, registration holes 106 on experiment tube, lower chamber 107, lower positioning screw bolt seat 108, registration holes 109 under experiment tube, 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: spike valve 23 is equipped with in traced fluid storage bottle 1 bottom, 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,
The described needle holder of spike up and down 20 is identical two covers of shape scantling, and upper and lower 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 upper and lower 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 tube 18;
The described needle holder of spike up and down 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: on described pivot arm 203, have straight shape slotted hole 371, support tight fixed bolt 207 with support locknut 373, angle iron bracket 204 to be connected with pivot arm 203 by expandable washer 372 through straight shape slotted hole 371.
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 by spike pin neck 41, spike needle tubing 42, spike needle tubing wall 43, spike pin mouth 44 forms, the cylinder boss that spike pin neck 41 is 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, external diameter=the 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.
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: weld intake chamber 4 and overflow groove 5 in constant voltage tank 3, then the constant voltage tank 3 having welded is welded on the top frame of movable framework 17 bottom frameworks;
Step 3: by upper hose 6 stage casing attaching ebullators 13, one end connects 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 the one end of upper hose 6 being equipped with to pump inlet valve 15 is connected with low level hopper outlet valve 16, upper hose 6 is equipped with to pump discharge valve 14 and is connected with intake chamber 4 bottom weldings;
Step 5: overflow groove 5 bottoms are installed and connected the run-down pipe 7 that surplus valve 10 is housed;
Step 6: spike bottle rack 2 is welded in to 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, by spinner-type flowmeter 9 flow regulation gate valves 11 are installed on rising pipe 8, experiment tube 18 is connected to 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, in the straight shape bolt hole 371 of pivot arm 203, penetrate support tight fixed bolt 207 and add expandable washer 372, angle iron bracket 204 is connected to cover upper bracket tight fixed bolt 207 pretensions with pivot arm 203;
Step 9: spike pin 21 is placed in to the spike needle tubing card 205 on angle iron bracket 204, with pipe clamp tight fixed bolt 206 pretensions;
Step 10: reynolds test instrument is installed to positioning module 100 and be sleeved on spike pin 21, make the angle iron bracket 204 of the lower spike needle holder of upper and lower spike needle holder 20 pass clamper hole 110, make spike pin 21 be placed on 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, the experiment mouth of pipe 19 is placed among experiment tube oral cavity 105, through upper positioning screw bolt seat 103 and lower positioning screw bolt seat 108, reynolds test instrument is installed to the tightening of 100 two semicircle right cylinders of positioning module with bolt;
Step 11: by angle iron bracket 204 and pivot arm 203 tightenings, by 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.
1, reynolds test instrument is installed positioning module, comprise registration holes 101 on spike pin, upper cavity 102, upper positioning screw bolt seat 103, registration holes 104 under spike pin, experiment tube oral cavity 105, registration holes 106 on experiment tube, lower chamber 107, lower positioning screw bolt seat 108, registration holes 109 under experiment tube, clamper hole 110, form 111, it is characterized in that: it is semicylinder that reynolds test instrument is installed positioning module 100 profiles, reynolds test instrument is installed positioning module 100 tops registration holes 101 on the spike pin of semicolumn, the upper cavity 102 that on spike pin, the below of registration holes 101 is semicolumn, upper cavity 102 lower ends are registration holes 104 under the spike pin of semicolumn, under spike pin, the below of registration holes 104 is experiment tube oral cavities 105 of semicolumn, 105 lower ends, experiment tube oral cavity are registration holes 106 on the experiment tube of semicolumn, the lower chamber 107 that on experiment tube, registration holes 106 belows are semicolumn, registration holes 109 under the experiment tube that lower chamber 107 bottoms are semicolumn, clamper hole 110 is positioned on the semicylinder of upper cavity 102 bottoms, the upper and lower two ends that are projected as of form 111 are the tangent rectangle of semicircle, being positioned at reynolds test instrument installs on positioning module 100 semicylinders, on spike pin, under the diameter of registration holes 101, spike pin, the diameter of registration holes 104 and the external diameter of spike pin 21 equate, on experiment tube, under the diameter of registration holes 106, experiment tube, the external diameter of the diameter of registration holes 109 and experiment tube 18 equates, on 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 same straight line.
2, a set of reynolds test instrument installation positioning module 100 is identical two semicylinders of outer shape, size.
3, the diameter in described clamper hole 110 is wide 2.5～5 times of angle iron bracket 204.
4, described form 111 wide is 1.8～3 times of experiment tube 18 diameters.
Claims (3)
1. reynolds test instrument is installed positioning module, comprises registration holes on spike pin, upper cavity, upper positioning screw bolt seat, registration holes under spike pin, experiment tube oral cavity, registration holes on experiment tube, lower chamber, lower positioning screw bolt seat, registration holes under experiment tube, clamper hole, form, it is characterized in that: it is semicylinder that reynolds test instrument is installed positioning module profile, reynolds test instrument is installed positioning module top registration holes on the spike pin of semicolumn, the upper cavity that on spike pin, the below of registration holes is semicolumn, upper cavity lower end is registration holes under the spike pin of semicolumn, under spike pin, the below of registration holes is the experiment tube oral cavity of semicolumn, lower end, experiment tube oral cavity is registration holes on the experiment tube of semicolumn, on experiment tube, registration holes below is the lower chamber of semicolumn, lower chamber bottom is registration holes under the experiment tube of semicolumn, clamper hole is positioned on the semicylinder of upper cavity bottom, the upper and lower two ends that are projected as of form are the tangent rectangle of semicircle, are positioned at reynolds test instrument and install on positioning module semicylinder, on spike pin, under the diameter of registration holes, spike pin, the diameter of registration holes is equal with the external diameter of spike pin, and on experiment tube, under the diameter of registration holes, experiment tube, the diameter of registration holes equates with the external diameter of experiment tube, on spike pin under registration holes, spike pin on registration holes, experiment tube under registration holes, experiment tube the center line of registration holes on same straight line.
2. reynolds test instrument as claimed in claim 1 is installed positioning module, it is characterized in that: it is identical two semicylinders of outer shape, size that a set of reynolds test instrument is installed positioning module.
3. reynolds test instrument as claimed in claim 1 is installed positioning module, it is characterized in that: for experiment tube diameter 1.8～3 times of described form wide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310030546.7A CN103077643B (en) | 2013-01-27 | 2013-01-27 | Mounting and positioning die for Reynolds experiment instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310030546.7A CN103077643B (en) | 2013-01-27 | 2013-01-27 | Mounting and positioning die for Reynolds experiment instrument |
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| Publication Number | Publication Date |
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| CN103077643A CN103077643A (en) | 2013-05-01 |
| CN103077643B true CN103077643B (en) | 2014-07-09 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201251870Y (en) * | 2008-03-28 | 2009-06-03 | 田锋 | Flow pattern instrument |
| CN201804480U (en) * | 2010-08-09 | 2011-04-20 | 郑州树仁科技发展有限公司 | Reynolds experiment device |
| CN102218177B (en) * | 2011-06-09 | 2015-07-22 | 宣建民 | Intramuscular injection painless instrument |
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