CN112007709B - Test-tube rack of dynamic control evaporation capacity - Google Patents
Test-tube rack of dynamic control evaporation capacity Download PDFInfo
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- CN112007709B CN112007709B CN202010635267.3A CN202010635267A CN112007709B CN 112007709 B CN112007709 B CN 112007709B CN 202010635267 A CN202010635267 A CN 202010635267A CN 112007709 B CN112007709 B CN 112007709B
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- 238000001704 evaporation Methods 0.000 title claims abstract description 21
- 230000008020 evaporation Effects 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims description 8
- 238000001035 drying Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 11
- 206010040007 Sense of oppression Diseases 0.000 description 2
- 230000006583 body weight regulation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L9/00—Supporting devices; Holding devices
- B01L9/06—Test-tube stands; Test-tube holders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/12—Velocity of flow; Quantity of flow, e.g. by varying fan speed, by modifying cross flow area
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/10—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in the open air; in pans or tables in rooms; Drying stacks of loose material on floors which may be covered, e.g. by a roof
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Devices For Use In Laboratory Experiments (AREA)
Abstract
The invention discloses a test tube rack capable of dynamically controlling evaporation capacity, which comprises an inverted T-shaped test tube rack support body, wherein an air chamber and a water collecting chamber are arranged on a support frame, a plurality of air outlets are formed in the air chamber, a support tube is arranged on the support frame, one end of the support tube is connected with the air outlets, a control plug is arranged at the other end of the support tube, and the control plug can adjust the air volume flowing out of the control plug according to the weight of a test tube. The invention provides a test tube rack capable of dynamically controlling evaporation capacity and dynamically adjusting drying air of the test tube rack. The wind in the plenum blows into the stay tube through the air outlet, blows out from the control stopper, and the air output can be adjusted according to the weight of test tube to the control stopper, reaches the effect that little test tube blows a small amount of wind, and big test tube blows a large amount of wind, just so makes to realize the effect of adjusting the air output according to the test tube size.
Description
Technical Field
The invention relates to the technical field of laboratory equipment, in particular to a test tube rack capable of dynamically controlling evaporation capacity.
Background
The test-tube rack that uses on the market at present generally can not be according to the size regulation drying dynamics of test tube, all adopts same drying dynamics to big small test tube, leads to some problems like this, for example on taking air-dried test-tube rack, the intake of some little test tubes is too big, and little test tube just can be blown off, and unnecessary big amount of wind can arouse the incident in the laboratory moreover, if the intake is less, that big test tube just needs longer time to obtain the drying.
The name of the invention creation of Chinese patent publication CN103170389A, published 2013, 06 and 26 is an improved quick-drying test tube rack, the application comprises a test tube rack body, the test tube rack body comprises a support and a bottom plate, and the quick-drying test tube rack is characterized in that: the upper end of the support is provided with an upper cover plate, the upper cover plate is provided with a plurality of rows of jacks, the jacks comprise large jacks and small jacks, small jacks are arranged between two adjacent rows of large jacks, the bottom plate is provided with stand columns corresponding to the jacks, each row of stand columns are provided with slots parallel to the bottom plate, the slots are internally provided with inserting plates, the bottom plate is internally provided with a drying device, and the inserting plates are internally provided with a water absorption device. In this application scheme, the inside water of test tube can not obtain quick drying, can not come the dry speed of control according to the size of test tube, leads to the drying process of big test tube to become slowly.
Disclosure of Invention
The invention provides a test tube rack capable of dynamically adjusting dry air of the test tube rack and dynamically controlling evaporation capacity, aiming at overcoming the problem that the dry air of the test tube rack cannot be dynamically adjusted in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a test-tube rack of dynamic control evaporation capacity, includes the shape of falling T test-tube rack supporter, has wind room and collecting chamber on the support frame, and it has a plurality of air outlets to open on the wind room, is equipped with the stay tube on the support frame, and stay tube one end is connected with the air outlet, and the stay tube other end is provided with the control stopper, and the control stopper can be according to the weight adjustment of test tube from the amount of wind size that the control stopper flows. Wind in the plenum blows into the stay tube through the air outlet, blow off from the control stopper, the control stopper can be according to the weight regulation air output of test tube, it blows a small amount of wind to reach little test tube, big test tube blows the effect of a large amount of wind, just so make can realize the effect of adjusting the air output according to the test tube size, the air input of some little test tubes is too big, little test tube just can be blown off, and unnecessary big air output can arouse the incident in the laboratory, if the air input is less, that big test tube just needs longer time to obtain the drying.
Preferably, the control plug is provided with a plug body and a plug head, the plug body is provided with a guide groove for guiding and a control groove for controlling air volume, one end of the plug body, which is far away from the supporting tube, is connected with a movable rod, and the movable rod is movably connected with the plug head; a pressure sensor is arranged between the plug body and the plug head. Generally when the test tube is put on the test-tube rack, the test tube bottom can contact the chock plug to give a pressure of chock plug, race the head and will contact pressure sensor for the downstream of movable rod, and give a pressure signal of pressure sensor, pressure sensor just can obtain pressure signal, and the weight change of test tube just can be reflected to this pressure signal.
Preferably, the control groove comprises an inclined plane control groove and a guide control groove, the inclined plane control groove is connected with the guide control groove, and the inclined plane control groove is arranged at one end, far away from the plug head, of the control plug. The guide control groove is used when the control plug is installed.
Preferably, one end of the supporting tube provided with the control plug is provided with a sliding plate and a control plate which are matched with the guide groove, the sliding plate slides in the guide groove, and the control plate slides in the inclined plane control groove. The slide slides in the guide way, the shape of slide cooperatees with the cell type of guide way, make the gap between slide and the guide way can be under the condition of guaranteeing not too much air leakage, can slide in a flexible way again, because the oppression control stopper of test tube can retract to the stay tube in, under the guide of guide way, the control stopper can be followed the axle center motion of control stopper, can not deviate, and then can not block and die yet, and relative motion will take place for the control panel in the inclined plane control groove, thereby arouse the distance change of control panel and inclined plane control tank bottom surface, when the control stopper receives the pressure of test tube to slide in the stay tube, the distance grow gradually of control panel and inclined plane control tank bottom surface, the amount of wind that blows out from between control panel and inclined plane control tank bottom surface will increase gradually, this has just realized the effect of size adjustment air output according to test tube weight.
Preferably, a T-shaped groove is formed in the side wall of the guide groove, a mounting hole is formed in the T-shaped groove, a T-shaped sliding block matched with the T-shaped groove is arranged in the T-shaped groove, the T-shaped sliding block is fixedly connected with one end of the elastic body, and the other end of the elastic body is connected with the end face of the guide groove. The T-shaped sliding block slides in the T-shaped groove, and the T-shaped sliding block is placed into the T-shaped groove through the mounting hole.
Preferably, the T-shaped slider is a magnetic body, and a magnetic piece corresponding to the T-shaped slider is provided on the slide plate. The T-shaped sliding block can be connected with the magnetic sheet through magnetic force, so that the control plug is connected with the supporting pipe, the control plug is kept at the position in the supporting pipe and cannot fall off, and the installation is convenient.
Preferably, the air chamber is provided with an air inlet, and the water collecting chamber is provided with a water collecting opening. The air inlet is connected with an air pump, the air pump pumps air into the air chamber, so that the pressure in the air chamber is greater than that in the air chamber outdoors, air can enter the supporting tube through the air outlet, the test tube is dried, and the position of the water collecting port is the lowest point in the surrounding position, so that water can conveniently flow into the water collecting chamber.
Preferably, the test tube rack further comprises a controller, an electromagnetic valve is arranged in the supporting tube, the controlled end of the electromagnetic valve is connected with the electromagnetic valve control end of the controller, and the signal output end of the pressure sensor is connected with the pressure signal receiving end.
The invention also comprises a test tube rack working method for dynamically controlling the evaporation capacity, and the test tube rack adopting the method comprises the following steps:
s1: when the controller receives the pressure signal change of the pressure sensor, the controller controls the control electromagnetic valve to open;
s2: and when the controller receives that the pressure signal of the pressure sensor does not change any more, the controller controls the control electromagnetic valve to close. When the controller received pressure sensor's pressure signal change, it has the test tube to be by on the test-tube rack to explain, at this moment need open the solenoid valve, in making the air admission stay tube in the plenum, dry the test tube, advance dry in-process at the test tube, the weight of test tube can constantly alleviate, because moisture on the test tube constantly is evaporated, when the controller received pressure sensor's pressure signal no longer changes, explain the moisture on the test tube originally evaporates completely, at this moment the test tube just need not dry again, so the solenoid valve need close.
Therefore, the invention has the following beneficial effects: (1) the air in the air chamber is blown into the supporting tube through the air outlet and blown out from the control plug, the control plug can adjust the air output according to the weight of the test tube, and the effects that a small amount of air is blown by the small test tube and a large amount of air is blown by the large test tube are achieved, so that the effect of adjusting the air output according to the size of the test tube can be realized;
(2) generally, when a test tube is placed on a test tube rack, the bottom of the test tube can contact a plug head, the plug head can give pressure to the plug head, the plug head can move downwards relative to a movable rod, the plug head can contact a pressure sensor, a pressure signal is given to the pressure sensor, the pressure sensor can obtain the pressure signal, the pressure signal can reflect the weight change of the test tube, the weight change of the test tube is further analyzed, and whether the test tube needs to be dried continuously or not is judged;
(3) the sliding plate slides in the guide groove, the shape of the sliding plate is matched with the groove shape of the guide groove, so that a gap between the sliding plate and the guide groove can flexibly slide under the condition of ensuring that excessive air leakage is avoided, the control plug can retract into the supporting pipe due to the compression of the test tube, the control plug can move along the axis of the control plug under the guide of the guide groove, the control plug cannot deviate and further cannot be clamped, the inclined plane control groove can relatively move relative to the control panel, the distance between the control panel and the bottom surface of the inclined plane control groove is changed, when the control plug slides in the supporting pipe under the pressure of the test tube, the distance between the control panel and the bottom surface of the inclined plane control groove is gradually increased, the air volume blown out from the space between the control panel and the bottom surface of the inclined plane control groove is gradually increased, and the effect of adjusting the air volume according to the weight of the test tube is achieved;
(4) when the controller received pressure sensor's pressure signal change, it is described that there is the test tube by on the test-tube rack, at this moment need open the solenoid valve, make the air in the plenum get into the stay tube, dry the test tube, advance dry in-process at the test tube, the weight of test tube can constantly alleviate, because moisture on the test tube constantly is evaporated, when the controller received pressure sensor's pressure signal no longer changes, it explains that the moisture on the test tube is originally totally evaporated, at this moment the test tube just need not dry again, so the solenoid valve need close
Drawings
FIG. 1 is a schematic diagram of a structure of the present invention
FIG. 2 is a schematic view of a control slot structure of the present invention
FIG. 3 is a schematic view of a guide groove structure of the present invention
FIG. 4 is a schematic view of a control plug according to the present invention
FIG. 5 is a schematic view of the end face structure of a support tube of the present invention
FIG. 6 is a schematic view of a partial structure of a T-shaped groove according to the present invention
FIG. 7 is a schematic view of a partial structure of a T-shaped slider according to the present invention
FIG. 8 is a schematic view of a T-shaped slider structure according to the present invention
FIG. 9 is a partial schematic view of a movable rod according to the present invention
FIG. 10 is a schematic view of a connecting sleeve structure of the present invention
FIG. 11 is a controller connection block diagram of the present invention
In the figure: 1. the test tube rack comprises a test tube rack support body, 11 parts of a water collecting chamber, 12 parts of an air chamber, 122 parts of an air inlet, 2 parts of a support tube, 21 parts of a sliding plate, 22 parts of a control plate, 3 parts of a control plug, 31 parts of a plug body, 311 parts of a guide groove, 3111 parts of a T-shaped groove, 3112 parts of a mounting hole, 312 parts of a control groove, 3121 parts of an inclined plane control groove, 3122 parts of a guide control groove, 32 parts of a plug head, 4 parts of an electromagnetic valve, 5 parts of a pressure sensor, 6 parts of a movable rod, 61 parts of a mounting cover, 7 parts of an elastic body, 8 parts of a T-shaped sliding block, 81 parts of a mounting column, 82 parts of a mounting head, 9 parts of an elastic block, 91 parts of a magnetic sheet, 92 parts of a mounting cavity and 93 parts of a traveling cavity.
Detailed Description
The invention is further described with reference to the following detailed description and accompanying drawings.
Example (b): the utility model provides a test-tube rack of dynamic control evaporation capacity, as shown in figure 1, including shape of falling T test-tube rack support body 1, windy room 12 and header 11 are opened on the support frame, have a plurality of air outlets 121 on the windy room, are equipped with stay tube 2 on the support frame, and stay tube one end is connected with the air outlet, and the stay tube other end is provided with control stopper 3, and control stopper can be according to the weight adjustment of test tube from the amount of wind size that the control stopper flows. As shown in fig. 4, the control plug 3 is provided with a plug body 31 and a plug head 32, as shown in fig. 2 and 3, the plug body is provided with a guide groove 311 for guiding and a control groove 312 for controlling air volume, one end of the plug body, which is far away from the support tube 2, is connected with a movable rod 6, and the movable rod is movably connected with the plug head; a pressure sensor 5 is arranged between the plug body and the plug head. As shown in fig. 9, the left side of the movable rod is a cylindrical rod, the right side of the movable rod is a spherical head, the spherical head is arranged in the mounting cover, as shown in fig. 10, the mounting cover is in threaded connection with the plug head, the mounting cover is embedded in the plug head, and the left side of the movable rod is in threaded connection with the plug body.
As shown in fig. 2, the control groove 312 includes a slope control groove 3121 and a guide control groove 3122, the slope control groove is connected with the guide control groove, and the slope control groove is disposed at an end of the control plug 3 away from the plug head 32.
As shown in fig. 5, the support tube 2 provided with the control plug 3 is provided at one end thereof with a slide plate 21 and a control plate 22 which are fitted into the guide groove 311, the slide plate sliding in the guide groove, and the control plate sliding in the slope control groove 3121.
As shown in fig. 6, a T-shaped groove 3111 is formed on a side wall of the guide groove 311, a mounting hole 3112 is formed in the T-shaped groove, a T-shaped slider 8 adapted to the T-shaped groove is arranged in the T-shaped groove, the T-shaped slider is fixedly connected with one end of the elastic body 7, and the other end of the elastic body is connected with an end face of the guide groove. The elastic body is a spring, and as shown in fig. 8, a mounting column 81 is arranged on the right side of the T-shaped sliding block, and a mounting head 82 is arranged on the right side of the mounting column. The T-shaped slider 8 is a magnetic body, as shown in FIG. 7, an elastic block 9 is embedded in the sliding plate, the elastic block is provided with a moving cavity 93 corresponding to the mounting column, the right side of the moving cavity is provided with a mounting cavity 92, the sliding plate 21 is provided with a magnetic sheet 91 corresponding to the T-shaped slider, the mounting head can enter the mounting cavity through the moving cavity, and the force of the mounting head entering the mounting cavity is smaller than the force of the mounting head exiting from the mounting cavity because the right side of the mounting head is a spherical surface and the left side of the mounting head is a plane surface.
The air chamber 12 is provided with an air inlet 122, and the water collecting chamber 11 is provided with a water collecting opening 13.
As shown in fig. 11, the present invention further includes a controller 15, the solenoid valve 4 is disposed in the support tube 2, the controlled end of the solenoid valve is connected to the control end of the solenoid valve of the controller, and the signal output end of the pressure sensor 5 is connected to the receiving end of the control pressure signal. The controller can be a single chip microcomputer PIC17C 43.
The invention also comprises a test tube rack working method for dynamically controlling the evaporation capacity, and the test tube rack for dynamically controlling the evaporation capacity is adopted, and is characterized by comprising the following steps:
s1: when the controller receives the pressure signal change of the pressure sensor, the controller controls the control electromagnetic valve to open;
s2: and when the controller receives that the pressure signal of the pressure sensor does not change any more, the controller controls the control electromagnetic valve to close.
Wind in the plenum blows into the stay tube through the air outlet, blow off from the control stopper, the control stopper can be according to the weight regulation air output of test tube, it blows a small amount of wind to reach little test tube, big test tube blows the effect of a large amount of wind, just so make can realize the effect of adjusting the air output according to the test tube size, the air input of some little test tubes is too big, little test tube just can be blown off, and unnecessary big air output can arouse the incident in the laboratory, if the air input is less, that big test tube just needs longer time to obtain the drying.
Generally when the test tube is put on the test-tube rack, the test tube bottom can contact the chock plug to give a pressure of chock plug, race the head and will contact pressure sensor for the downstream of movable rod, and give a pressure signal of pressure sensor, pressure sensor just can obtain pressure signal, and the weight change of test tube just can be reflected to this pressure signal.
The guide control groove is used when the control plug is installed.
The slide slides in the guide way, the shape of slide cooperatees with the cell type of guide way, make the gap between slide and the guide way can be under the condition of guaranteeing not too much air leakage, can slide in a flexible way again, because the oppression control stopper of test tube can retract to the stay tube in, under the guide of guide way, the control stopper can be followed the axle center motion of control stopper, can not deviate, and then can not block and die yet, and relative motion will take place for the control panel in the inclined plane control groove, thereby arouse the distance change of control panel and inclined plane control tank bottom surface, when the control stopper receives the pressure of test tube to slide in the stay tube, the distance grow gradually of control panel and inclined plane control tank bottom surface, the amount of wind that blows out from between control panel and inclined plane control tank bottom surface will increase gradually, this has just realized the effect of size adjustment air output according to test tube weight.
The T-shaped sliding block slides in the T-shaped groove, and the T-shaped sliding block is placed into the T-shaped groove through the mounting hole.
The T-shaped sliding block can be connected with the magnetic sheet through magnetic force, so that the control plug is connected with the supporting pipe, the control plug is kept at the position in the supporting pipe and cannot fall off, and the installation is convenient.
The air inlet is connected with an air pump, the air pump pumps air into the air chamber, so that the pressure in the air chamber is greater than that in the air chamber outdoors, air can enter the supporting tube through the air outlet, the test tube is dried, and the position of the water collecting port is the lowest point in the surrounding position, so that water can conveniently flow into the water collecting chamber.
When the controller received pressure sensor's pressure signal change, it has the test tube to be by on the test-tube rack to explain, at this moment need open the solenoid valve, in making the air admission stay tube in the plenum, dry the test tube, advance dry in-process at the test tube, the weight of test tube can constantly alleviate, because moisture on the test tube constantly is evaporated, when the controller received pressure sensor's pressure signal no longer changes, explain the moisture on the test tube originally evaporates completely, at this moment the test tube just need not dry again, so the solenoid valve need close.
Claims (9)
1. The utility model provides a test-tube rack of dynamic control evaporation capacity, characterized by includes inverted T shape test-tube rack support body (1), has plenum (12) and header chamber (11) on the support frame, and it has a plurality of air outlets (121) to open on the plenum, is equipped with stay tube (2) on the support frame, and stay tube one end is connected with the air outlet, and the stay tube other end is provided with control stopper (3), and the control stopper can be according to the weight adjustment of test tube from the amount of wind size that the control stopper flows.
2. The test tube rack for dynamically controlling the evaporation capacity according to claim 1, wherein the control plug (3) is provided with a plug body (31) and a plug head (32), the plug body is provided with a guide groove (311) for guiding and a control groove (312) for controlling the air volume, one end of the plug body, which is far away from the support tube (2), is connected with a movable rod (6), and the movable rod is movably connected with the plug head; a pressure sensor (5) is arranged between the plug body and the plug head.
3. The test tube rack for dynamically controlling the evaporation capacity according to the claim 1 or 2, wherein the control groove (312) comprises a slope control groove (3121) and a guide control groove (3122), the slope control groove is connected with the guide control groove, and the slope control groove is arranged at one end of the control plug (3) far away from the plug head (32).
4. The test tube rack for dynamically controlling evaporation according to claim 1 or 2, wherein one end of the support tube (2) provided with the control plug (3) is provided with a slide plate (21) and a control plate (22) which are adapted to the guide groove (311), the slide plate slides in the guide groove, and the control plate slides in the slope control groove (3121).
5. The test tube rack for dynamically controlling the evaporation capacity according to claim 1 or 2, wherein a T-shaped groove (3111) is formed in the side wall of the guide groove (311), a mounting hole (3112) is formed in the T-shaped groove, a T-shaped sliding block (8) matched with the T-shaped groove is arranged in the T-shaped groove, the T-shaped sliding block is fixedly connected with one end of the elastic body (7), and the other end of the elastic body is connected with the end face of the guide groove.
6. The test tube rack for dynamically controlling the evaporation capacity according to claim 5, wherein the T-shaped slider (8) is a magnetic body, and the slide plate (21) is provided with a magnetic sheet corresponding to the T-shaped slider.
7. The test tube rack for dynamically controlling evaporation capacity according to claim 1, wherein the air chamber (12) is provided with an air inlet (122), and the water collecting chamber (11) is provided with a water collecting opening (13).
8. The test tube rack for dynamically controlling the evaporation capacity according to claim 1 or 2, further comprising a controller (15), wherein the support tube (2) is internally provided with an electromagnetic valve (4), a controlled end of the electromagnetic valve is connected with a control end of the electromagnetic valve of the controller, and a signal output end of the pressure sensor (5) is connected with a signal receiving end of a control pressure.
9. A test tube rack working method for dynamically controlling evaporation capacity, which adopts the test tube rack for dynamically controlling evaporation capacity as claimed in any one of claims 1-8, and is characterized in that the method comprises the following steps:
s1: when the controller receives the pressure signal change of the pressure sensor, the controller controls the control electromagnetic valve to open;
s2: and when the controller receives that the pressure signal of the pressure sensor does not change any more, the controller controls the control electromagnetic valve to close.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010635267.3A CN112007709B (en) | 2020-07-03 | 2020-07-03 | Test-tube rack of dynamic control evaporation capacity |
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| CN202010635267.3A CN112007709B (en) | 2020-07-03 | 2020-07-03 | Test-tube rack of dynamic control evaporation capacity |
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| CN113237317B (en) * | 2021-04-15 | 2022-12-23 | 重庆市开州区荣邦服饰有限公司 | Difficult steam drying equipment for fabrics that blocks up |
| CN113578417A (en) * | 2021-08-17 | 2021-11-02 | 郑蓬洋 | High school student uses convertible test tube sunning frame |
| CN115717814B (en) * | 2022-10-31 | 2024-08-27 | 浙江华才检测技术有限公司 | Test tube drying device |
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| GB9930157D0 (en) * | 1999-07-09 | 2000-02-09 | Cole Michael | Improvements in or relating to centrifugal evaporators |
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| CN205850931U (en) * | 2016-07-18 | 2017-01-04 | 浙江华才检测技术有限公司 | A kind of test tube rack of automatic drying |
| CN205897734U (en) * | 2016-07-18 | 2017-01-18 | 浙江华才检测技术有限公司 | Test tube flask drying equipment |
| CN108315986A (en) * | 2017-01-16 | 2018-07-24 | 青岛海尔洗衣机有限公司 | One kind automatically controlling Quick clothes dryer and control method |
| CN206701341U (en) * | 2017-04-28 | 2017-12-05 | 常城皓 | A kind of Bioexperiment Multifunctional test tube rack |
| RU2689337C1 (en) * | 2018-07-02 | 2019-05-27 | федеральное государственное бюджетное образовательное учреждение высшего образования "Северный государственный медицинский университет" Министерства здравоохранения Российской Федерации | Method for determining amount of collagen in tissue |
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