CN111999290A - Automatic dry full-automatic water-soluble acid-base apparatus of colour comparison tube residual moisture - Google Patents
Automatic dry full-automatic water-soluble acid-base apparatus of colour comparison tube residual moisture Download PDFInfo
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- CN111999290A CN111999290A CN202010862142.4A CN202010862142A CN111999290A CN 111999290 A CN111999290 A CN 111999290A CN 202010862142 A CN202010862142 A CN 202010862142A CN 111999290 A CN111999290 A CN 111999290A
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- colorimetric tube
- screw rod
- residual moisture
- soluble acid
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- 238000001035 drying Methods 0.000 claims abstract description 27
- 238000013016 damping Methods 0.000 claims description 13
- 238000005485 electric heating Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 229920001875 Ebonite Polymers 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 abstract description 10
- 239000002585 base Substances 0.000 description 16
- 230000005540 biological transmission Effects 0.000 description 7
- 230000006698 induction Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- KJFMBFZCATUALV-UHFFFAOYSA-N phenolphthalein Chemical compound C1=CC(O)=CC=C1C1(C=2C=CC(O)=CC=2)C2=CC=CC=C2C(=O)O1 KJFMBFZCATUALV-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- STZCRXQWRGQSJD-UHFFFAOYSA-M sodium;4-[[4-(dimethylamino)phenyl]diazenyl]benzenesulfonate Chemical compound [Na+].C1=CC(N(C)C)=CC=C1N=NC1=CC=C(S([O-])(=O)=O)C=C1 STZCRXQWRGQSJD-UHFFFAOYSA-M 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 241000220317 Rosa Species 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- STZCRXQWRGQSJD-GEEYTBSJSA-M methyl orange Chemical compound [Na+].C1=CC(N(C)C)=CC=C1\N=N\C1=CC=C(S([O-])(=O)=O)C=C1 STZCRXQWRGQSJD-GEEYTBSJSA-M 0.000 description 1
- 229940012189 methyl orange Drugs 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
- G01N21/80—Indicating pH value
-
- 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
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Plasma & Fusion (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a full-automatic water-soluble acid-base tester for automatically drying residual moisture of a colorimetric tube, which belongs to the technical field of water-soluble acid-base determination and solves the problem that the existing full-automatic water-soluble acid-base tester does not automatically dry the residual moisture of the colorimetric tube, the device comprises a colorimetric tube fixing plate, a first screw, a tester shell, a movable drying box, a servo motor and an air valve, wherein a containing frame is connected on the first screw and a second screw in a sliding way through a sliding block connected with a connecting rod, a driving wheel connected with the servo motor through a motor shaft is connected with a driving wheel embedded at the end part of the first screw through gear teeth, a first synchronous wheel embedded on the side wall of the first screw is connected with a second synchronous wheel embedded on the side wall of the second screw through a synchronous belt, the drying box is connected with an exhaust fan through an exhaust pipe, the exhaust fan is connected with the air valve, the invention has the characteristic of automatically drying the residual moisture of the colorimetric tube.
Description
Technical Field
The invention belongs to the technical field of water-soluble acid-base determination, and particularly relates to a full-automatic water-soluble acid-base determination instrument capable of automatically drying residual moisture of a colorimetric tube.
Background
The measuring principle of the full-automatic water-soluble acid-base measuring instrument is that distilled water is used for extracting water-soluble acid and alkali in a sample, and then methyl orange or phenolphthalein indicator is used for detecting the change condition of the color of the extracted solution respectively so as to judge whether water-soluble acid and alkali exist in the product.
1-2mL of extract is respectively put into two colorimetric tubes, 2 drops of methyl orange solution is added into a first colorimetric tube, and the colorimetric tube is compared with another colorimetric tube filled with distilled water and 2 drops of methyl orange solution with the same volume, if the extract is rose, the water-soluble acid exists in a tested product, 3 drops of phenolphthalein solution is added into a second colorimetric tube, and if the solution is rose or red, the water-soluble alkali exists, but the colorimetric tube can remain moisture after being cleaned, the product, the methyl orange solution and the phenolphthalein solution in the colorimetric tube can be diluted, and the measurement precision can be influenced.
But full-automatic water-soluble acid-base apparatus can't be automatic dries the colour comparison tube after the washing, if adopt artifical mode of drying, not only can increase staff's intensity of labour, still can reduce work efficiency.
Therefore, in order to solve the problem, a full-automatic water-soluble acid-base measuring instrument capable of automatically drying the residual moisture of the cuvette needs to be developed and designed, so that the problem that the existing full-automatic water-soluble acid-base measuring instrument does not have the residual moisture of the cuvette capable of being automatically dried is solved.
Disclosure of Invention
Aiming at the defects in the prior art, the embodiment of the invention aims to provide a full-automatic water-soluble acid-base tester for automatically drying the residual moisture of a colorimetric tube, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a full-automatic water-soluble acid-base determinator capable of automatically drying residual moisture of a colorimetric tube comprises a colorimetric tube fixing plate, a first screw, a determinator shell, a live drying box, a servo motor and an air valve, wherein the colorimetric tube fixing plate is connected with the bottom of a containing frame through a damping device, two sides of the containing frame are connected with sliders through connecting rods, the sliders are connected onto the first screw and a second screw in a sliding mode, two ends of the first screw and two ends of the second screw are respectively and fixedly connected into bearings embedded in a fixing rod and a side wall of the determinator shell, the bottom of the determinator shell is fixedly connected with a base, the servo motor is connected with a driving wheel through a motor shaft, the driving wheel is connected with a driving wheel embedded in the end portion of the first screw through gear teeth, a first synchronous wheel embedded in the side wall of the first screw is connected with a second synchronous wheel embedded in the side wall of the second screw, and the air exhauster passes through the blast pipe and connects the air blast valve, the blast pipe passes through branch connection apparatus shell inner wall, the quantity of air blast valve is a plurality of to evenly distributed is in the blast pipe bottom, the air blast valve is located and holds directly over the frame.
As a further scheme of the invention, the bottom of the accommodating frame is fixedly connected with an induction sheet and supporting legs, the induction sheet corresponds to a distance sensor, the distance sensor is fixedly connected to the upper surface of a fixed bottom plate, the fixed bottom plate is embedded between two fixed rods, the distance sensor is electrically connected with the input end of a controller, the output end of the controller is connected with a servo motor, the controller and the servo motor are respectively and fixedly connected with a movable door and a base, and the movable door is connected with a measuring instrument shell through a rotating shaft.
As a further scheme of the present invention, a temperature sensor is fixedly connected to the top of the fixing rod, the temperature sensor is electrically connected to the input end of the controller, the output end of the controller is electrically connected to the heating wires in the electric heating tubes, and the electric heating tubes are distributed uniformly inside the drying box.
As a further scheme of the invention, the damping device comprises a first buffer block, a damping spring and a second buffer block, the first buffer block is connected with the second buffer block through the damping spring, the first buffer block and the second buffer block are respectively and fixedly connected with the colorimetric tube fixing plate and the containing frame, and the first buffer block, the second buffer block and the supporting legs are all made of hard rubber.
As a further scheme of the present invention, the cuvette fixing plate is provided with a plurality of cuvette fixing holes, and the number of the cuvette fixing holes is a plurality of cuvette fixing holes, and the cuvette fixing holes are uniformly distributed on the upper surface of the cuvette fixing plate.
In summary, compared with the prior art, the embodiment of the invention has the following beneficial effects:
1. the heater strip possesses the effect of heating stoving incasement air, the air exhauster can arrange the high temperature air of stoving incasement to the fumet through the air supply pipe, the fumet spouts high temperature air to the colour comparison tube, can fall the intraductal remaining moisture evaporation of colour comparison, reach the purpose of stoving, work efficiency is improved, temperature sensor can accurately monitor out the temperature variation around the colour comparison tube, when the certain numerical value of temperature rise, temperature sensor can send closing signal for the heater strip through the controller, make its stop heating, prevent that the high temperature from damaging the colour comparison tube, the high characteristics of fail safe nature are possessed.
2. Utilize gear engagement transmission principle, servo motor can drive first screw rod rotatory, utilizes the transmission principle of hold-in range, and first screw rod can give the second screw rod with power transmission to drive second screw rod synchronous revolution, hold the colour comparison tube in the frame and can dry to the jet-propelled valve below through slider along first screw rod and second screw rod axis direction rebound, possess the high characteristics of degree of automation, improved work efficiency.
3. The position that distance sensor can monitor out the response piece changes, and when holding the frame and rising or descend to a certain distance, distance sensor passes through the controller and will close signal transmission and give servo motor to can make servo motor stop, prevent to hold frame and PMKD and jet valve and bump, prevent that colour comparison tube and jet valve from possessing the characteristics that fail safe nature is high because of the damage that the striking caused.
To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is a schematic structural diagram of embodiments 1 to 2 in the present invention.
Fig. 2 is a front view of the invention.
Figure 3 is an isometric view of a cuvette holder plate according to example 1 of the invention.
Fig. 4 is a connection relationship diagram of parts in the shock absorbing device according to embodiment 2 of the present invention.
Reference numerals: 1-drying box, 2-electric heating tube, 3-exhaust fan, 4-blast pipe, 5-air injection valve, 6-tester shell, 7-containing frame, 8-first screw, 9-slide block, 10-induction sheet, 11-distance sensor, 12-synchronous wheel I, 13-servo motor, 14-driving wheel, 15-driving wheel, 16-base, 17-fixed bottom plate, 18-synchronous belt, 19-supporting leg, 20-synchronous wheel II, 21-second screw, 22-fixed rod, 23-damping device, 231-buffer block I, 232-damping spring, 233-buffer block II, 24-temperature sensor, 25-colorimetric tube fixed plate, 25-colorimetric tube fixed hole, 26-supporting rod, 5-air injection valve, 6-tester shell, 14-containing frame, 8-first screw, 9-slide block, 10-induction sheet, 11-distance sensor, 12-synchronous wheel I, 27-movable door, 28-controller.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
Example 1
Referring to fig. 1 to 4, a full-automatic water-soluble acid-base determinator for automatically drying residual moisture of a cuvette includes a cuvette fixing plate 25, a first screw 8, a determinator housing 6, a movable drying box 1, a servo motor 13 and a gas injection valve 5, the cuvette fixing plate 25 is connected to the bottom of a containing frame 7 through a shock absorption device 23, the cuvette fixing plate 25 is provided with cuvette fixing holes 25, the number of the cuvette fixing holes 25 is a plurality of, and the cuvette fixing holes are uniformly distributed on the upper surface of the cuvette fixing plate 25, and a plurality of cuvettes can be simultaneously placed in the cuvette fixing holes 25 for drying, so that the work efficiency is improved.
And the two sides of the containing frame 7 are respectively connected with a slide block 9 through connecting rods, the slide blocks 9 are respectively connected on a first screw rod 8 and a second screw rod 21 in a sliding manner, the two ends of the first screw rod 8 and the second screw rod 21 are respectively fixedly connected in a fixed rod 22 and a bearing embedded in the side wall of the measuring instrument shell 6, the bottom of the measuring instrument shell 6 is fixedly connected with a base 16, a servo motor 13 is connected with a driving wheel 14 through a motor shaft, the driving wheel 14 is connected with a driving wheel 15 embedded in the end part of the first screw rod 8 through a gear, a synchronous wheel 12 embedded in the side wall of the first screw rod 8 is connected with a synchronous wheel second 20 embedded in the side wall of the second screw rod 21 through a synchronous belt 18, the servo motor 13 can drive the first screw rod 8 to rotate by utilizing a gear meshing transmission principle, the first screw rod 8 can transmit power to the second screw rod 21 and drive, the color comparison tube in the containing frame 7 can move upwards along the axial direction of the first screw rod 8 and the second screw rod 21 through the sliding block 9, and is dried through the drying device at the top, so that the color comparison tube has the characteristic of high automation degree, and the working efficiency is improved.
Stoving case 1 is through aspiration channel connection air exhauster 3 to air exhauster 3 connects air blast 5 through blast pipe 4, blast pipe 4 passes through branch 26 and connects 6 inner walls of apparatus casing, the quantity of air blast 5 is a plurality of to evenly distributed is in blast pipe 4 bottom, air blast 5 is located and holds directly over the frame 7, and air exhauster 3 can pass through blast pipe 4 with the high temperature air in stoving case 1 and arrange to air blast 5, and air blast 5 spouts high temperature air to the colour comparison tube, can evaporate remaining moisture in the colour comparison tube, reaches the purpose of drying, has improved work efficiency.
The top fixedly connected with temperature sensor 24 of dead lever 22, temperature sensor 24 and the input electric connection of controller 28 to the heater strip electric connection in controller 28 and the electrothermal tube 2, the heater strip possesses the effect of heated air, and temperature sensor 24 can accurately monitor the temperature variation around the colour comparison tube, and when certain numerical value that the temperature rose, temperature sensor 24 can send the turn-off signal for the heater strip through controller 28, makes it stop heating, prevents that the high temperature from damaging the colour comparison tube, possesses the characteristics that fail safe nature is high, the quantity of electrothermal tube 2 is a plurality of to evenly distributed is inside stoving case 1, has improved the speed of heating, has improved the work efficiency of drying.
Example 2
Referring to fig. 1 to 4, a full-automatic water-soluble acid-base analyzer for automatically drying residual moisture in a cuvette, further comprising an accommodating frame 7, wherein the bottom of the accommodating frame 7 is fixedly connected with an induction sheet 10 and supporting legs 19, the positions of the induction sheet 10 and a distance sensor 11 correspond to each other, the distance sensor 11 can monitor the position change of the induction sheet 10, the distance sensor 11 is fixedly connected to the upper surface of a fixed bottom plate 17, the fixed bottom plate 17 is embedded between two fixing rods 22, the distance sensor 11 is electrically connected with the input end of a controller 28, the output end of the controller 28 is connected with a servo motor 13, when the accommodating frame 7 is lifted or lowered to a certain distance, the distance sensor 11 sends a closing signal to the servo motor 13 through the controller 28, the servo motor 13 can be stopped, and the accommodating frame 7 is prevented from colliding with the fixed bottom plate 17 and an air injection valve 5, lead to colour comparison tube and jet valve 5 to damage, possess the characteristics that fail safe nature is high, controller 28 and servo motor 13 respectively with dodge gate 27 and base 16 fixed connection to the determinator casing 6 is connected through the pivot to dodge gate 27, and the staff of being convenient for of dodge gate 27 gets and puts the colour comparison tube.
The rest of the structure of this example is the same as example 1.
The working principle of the invention is as follows: at first put into the colour comparison tube fixed orifices 25 of colour comparison tube fixed plate 25 upper surface with the colour comparison tube in, then start servo motor 13, utilize gear engagement transmission principle, it is rotatory to drive first screw rod 8, utilize the transmission principle of hold-in range 18, first screw rod 8 can give second screw rod 21 with power transmission, and drive second screw rod 21 synchronous revolution, the colour comparison tube that holds in the frame 7 can pass through slider 9 along first screw rod 8 and second screw rod 21 axis direction rebound to automatic shutdown behind the certain distance, start air exhauster 3 after that, can arrange the high temperature air in the stoving case 1 to air-jet valve 5 through blast pipe 4, air-jet valve 5 spouts high temperature air to the colour comparison tube, can evaporate residual moisture in the colour comparison tube, reach the purpose of drying.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. A full-automatic water-soluble acid-base determinator capable of automatically drying residual moisture of a colorimetric tube comprises a colorimetric tube fixing plate (25), a first screw rod (8), a determinator shell (6), a movable drying box (1), a defoaming servo motor (13) and an air injection valve (5), and is characterized in that the colorimetric tube fixing plate (25) is connected with the bottom of a containing frame (7) through a damping device (23), the two sides of the containing frame (7) are connected with sliders (9) through connecting rods, the sliders (9) are connected onto the first screw rod (8) and a second screw rod (21) in a sliding manner, the two ends of the first screw rod (8) and the second screw rod (21) are respectively and fixedly connected into bearings embedded in the side walls of a fixing rod (22) and the determinator shell (6), the bottom of the determinator shell (6) is fixedly connected with a base (16), and the servo motor (13) is connected with a driving wheel (14) through a motor, and drive wheel (14) are connected first screw rod (8) tip through the teeth of a cogwheel and are inlayed drive wheel (15) to the inlayed synchronizing wheel of first screw rod (8) lateral wall (12) are connected second screw rod (21) lateral wall and are inlayed synchronizing wheel two (20) through hold-in range (18), stoving case (1) is connected air exhauster (3) through the aspiration channel to air exhauster (3) are connected air blast valve (5) through blast pipe (4), blast pipe (4) are connected survey appearance casing (6) inner wall through branch (26), the quantity of air blast valve (5) is a plurality of to evenly distributed is in blast pipe (4) bottom, air blast valve (5) are located and hold frame (7) directly over.
2. The full-automatic water-soluble acid-base tester capable of automatically drying the residual moisture of the colorimetric tube as claimed in claim 1, wherein the bottom of the accommodating frame (7) is fixedly connected with a sensing piece (10) and a supporting leg (19), the sensing piece (10) and a distance sensor (11) are arranged corresponding to each other, the distance sensor (11) is fixedly connected to the upper surface of a fixed bottom plate (17), the fixed bottom plate (17) is embedded between two fixed rods (22), the distance sensor (11) is electrically connected with the input end of a controller (28), the output end of the controller (28) is connected with a servo motor (13), the controller (28) and the servo motor (13) are respectively fixedly connected with a movable door (27) and a base (16), and the movable door (27) is connected with the tester shell (6) through a rotating shaft.
3. The full-automatic water-soluble acid-base tester for automatically drying the residual moisture of the colorimetric tube according to claim 2, wherein a temperature sensor (24) is fixedly connected to the top of the fixing rod (22), the temperature sensor (24) is electrically connected to the input end of the controller (28), the output end of the controller (28) is electrically connected to the heating wire in the electric heating tube (2), the number of the electric heating tube (2) is several, and the electric heating tube is uniformly distributed inside the drying box (1).
4. The full-automatic water-soluble acid-base determinator for automatically drying residual moisture of a colorimetric tube according to claim 1, wherein the damping device (23) comprises a first buffer block (231), a damping spring (232) and a second buffer block (233), the first buffer block (231) is connected with the second buffer block (233) through the damping spring (232), the first buffer block (231) and the second buffer block (23) are respectively and fixedly connected with the colorimetric tube fixing plate (25) and the accommodating frame (7), and the first buffer block (231), the second buffer block (23) and the supporting legs (19) are made of hard rubber.
5. The full-automatic water-soluble acid-base determinator for automatically drying residual moisture of colorimetric tubes according to claim 4, wherein the colorimetric tube fixing plate (25) is provided with a plurality of colorimetric tube fixing holes (25), and the colorimetric tube fixing holes (25) are uniformly distributed on the upper surface of the colorimetric tube fixing plate (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010862142.4A CN111999290A (en) | 2020-08-25 | 2020-08-25 | Automatic dry full-automatic water-soluble acid-base apparatus of colour comparison tube residual moisture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010862142.4A CN111999290A (en) | 2020-08-25 | 2020-08-25 | Automatic dry full-automatic water-soluble acid-base apparatus of colour comparison tube residual moisture |
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| CN111999290A true CN111999290A (en) | 2020-11-27 |
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| CN210891528U (en) * | 2019-10-28 | 2020-06-30 | 江苏恒昌照明灯具有限公司 | Height-adjustable's high-pole lamp pole |
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2020
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| CN204086149U (en) * | 2014-09-05 | 2015-01-07 | 淄博纳瑞仪器有限公司 | Water soluble acid tester |
| CN107607691A (en) * | 2017-10-31 | 2018-01-19 | 颜杰雄 | Soil acidity or alkalinity detection device is used in a kind of petroleum pipeline laying |
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Application publication date: 20201127 |