CN214668933U - Positioning device of oxygen content measuring device - Google Patents
Positioning device of oxygen content measuring device Download PDFInfo
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- CN214668933U CN214668933U CN202120847469.4U CN202120847469U CN214668933U CN 214668933 U CN214668933 U CN 214668933U CN 202120847469 U CN202120847469 U CN 202120847469U CN 214668933 U CN214668933 U CN 214668933U
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Abstract
The utility model relates to an oxygen assay technical field is an oxygen assay device's positioner, and it includes the cabinet body, and there is fixed plate one in the left side of the internal portion of cabinet along vertical fixed mounting, and spaced location room one and location room two about the fixed plate divide into the cabinet body, and there is fixed plate two location room two inside downside along horizontal fixed mounting. The utility model has the advantages of reasonable and compact structure, high durability and convenient use, it fixes a position each laboratory ware in each positioning chamber, the position of the balanced bottle of lift is confirmed through two fly leafs for the experimenter need not adjust the position repeatedly, the experimental time has been shortened, work efficiency is improved, can satisfy the demand of survey oxygen content in each laboratory, avoided the experimenter manual operation to cause corrosive liquids to spill over and the cracked problem appears in the pipe among the experimental apparatus, have safety, laborsaving, simple and convenient, efficient characteristics.
Description
Technical Field
The utility model relates to an oxygen assay technical field is an oxygen assay device's positioner.
Background
The existing oxygen content determination method is mainly determined according to a copper ammonia solution absorption method of the second part of the 'Chinese pharmacopoeia' 2020 edition, and the main principle is that 100ml of oxygen injection gas measuring pipe is sampled, and is pressed into an absorber filled with copper ammonia solution by a balance bottle through a three-way piston, copper in the absorber meets ammonia-ammonium chloride solution, namely, cuprous ammonia chloride with reducibility is generated, and the cuprous ammonia chloride meets oxygen and carries out the following chemical reaction:
8CuNH3Cl+O2+4NH4Cl+4NH3→4[CuCl·CuCl2·4NH2]+H2and O, thereby consuming the oxygen, reducing the volume of the oxygen in the gas measuring pipe, and reading the content of the oxygen when the residual gas is returned to the gas measuring pipe after the oxygen is absorbed by reaction.
The conventional oxygen content measuring apparatus is shown in fig. 1, wherein a and C are absorbers having a total capacity of about 300ml, a and C are communicated, D, E and I are fine glass catheters, a gas metering tube F is a gas metering tube body having a scale precision of 0.lml and a capacity of 100ml, G is a three-way piston, H is a gas inlet and outlet, and J is a balance bottle. Before use, the first absorber A is communicated with the gas measuring tube F by thin glass guide tubes D, E and I, and the gas measuring tube F is communicated with the balance bottle J by a rubber tube K.
During measurement, copper wire knots (red copper wires with the diameter of about 0.8mm are wound into copper wire rolls with the diameter of about 4mm and cut into small knots with the length of about 10 mm) are filled in the first absorber A, the rubber plug B is used for plugging, ammonia-ammonium chloride solution (150G of ammonium chloride, 200mL of water is added, 200mL of concentrated ammonia solution is carefully added along with stirring and uniformly mixed) is introduced, the first absorber A is filled with the ammonia-ammonium chloride solution, part of the ammonia-ammonium chloride solution is left in the second absorber C, saturated sodium chloride solution is injected into the balance bottle J, the balance bottle J is lifted, the measuring gas pipe F is filled with the saturated sodium chloride solution, redundant solution flows out from the gas inlet and outlet H, the three-way piston G is rotated to connect the measuring gas pipe F and the first absorber A, the balance bottle is lowered to enable the ammonia-ammonium chloride solution to be completely filled with the inlets of the first fine glass conduit D, the second fine glass conduit E, the third glass conduit I and the three-way piston G, the three-way piston G is immediately closed, if gas and part of ammonia-ammonium chloride solution enter the air measuring pipe F, the balance bottle J can be lifted, and the three-way piston G is rotated to be discharged from the gas inlet and outlet H.
The method comprises the steps of connecting a pressure reducing valve (special for oxygen) to a steel cylinder of a test sample, connecting a rubber tube to an outlet of the pressure reducing valve, carefully and slightly opening an air valve of the steel cylinder, opening the pressure reducing valve to spray oxygen for 1 minute, adjusting to weak air flow, connecting the other end of the rubber tube to an air inlet and outlet H, closing a three-way piston G after a gas measuring tube F is filled with the test sample, immediately removing the rubber tube on the air inlet and outlet H, standing for several minutes, turning the three-way piston G to connect the air inlet and outlet H, and slowly lifting a balance bottle J (for preventing external air from being sucked, taking care that the liquid level in the balance bottle J is slightly higher than the liquid level in the gas measuring tube F) to ensure that the liquid level in the gas measuring tube F just reaches 0 scale (the volume of oxygen is 100 ml). Rotating a three-way piston G to connect a measuring gas pipe F and an absorber A, lifting a balance bottle J to enable a sample to enter the absorber A, closing the three-way piston G and carefully and sufficiently shaking the absorber A for 5 to 10 minutes when saturated sodium chloride solution flows through a fine glass guide pipe III I and is filled with the fine glass guide pipe D, enabling gas to be absorbed nearly completely (nitrogen or other unabsorbed gas) by rotating the three-way piston G to connect the measuring gas pipe F and the absorber A, lowering the balance bottle J, transferring the residual gas from the absorber A to the measuring gas pipe F, and closing the three-way piston G when ammonia-ammonium chloride solution is filled in the absorber A and passes through the fine glass guide pipe I D, the fine glass guide pipe II E and the fine glass guide pipe III through the three-way piston G. After about 5 minutes, the liquid level of the balance bottle J is adjusted to make the gas pressure in the gas measuring pipe F consistent with the atmospheric pressure, the scale of the liquid level in the gas measuring pipe F is read out, and the content of the sample is calculated.
The problems in the conventional oxygen content measuring apparatus are as follows: 1. the existing oxygen content measuring device consists of a glass container, a thin glass tube, a rubber tube and a rubber plug. In the experimental operation process, the balance bottle J is required to be held by hand to adjust the liquid level position, so that oxygen in the gas measuring pipe F enters the absorber A to be contacted with the copper ammonia solution, and then the absorber A is shaken to accelerate the reaction of the oxygen and the copper ammonia solution. This process is difficult to perform by a single experimenter, and therefore, it is necessary to fix the devices other than the balancing bottle J. At present, in the actual operation process, a gas measuring pipe F, an absorber I A and an absorber II C are tied on an iron frame by nylon ropes, but when the absorber I A is shaken, a thin glass conduit II E is easy to break, and in addition, when the gas measuring pipe F and the absorber I A are filled with a large amount of liquid, the weight is large, the gas measuring pipe F and the absorber I A are not easy to be fixed on the iron frame, and danger is easy to occur; 2. in the experimentation, need handheld balance bottle J to lift up or reduce in order to adjust the liquid level position, take into account liquid level position and liquid level position in the absorber II C in the gas measuring pipe F simultaneously, careless a little, the ejection of export and gas import and export H is gone up from absorber II C very easily to cuprammonia, and cuprammonia has the corrosivity, all has the corrosion to skin and laboratory bench, and the smell is sharp, is unfavorable for healthyly. This step is time consuming and hazardous during the experimental run.
Disclosure of Invention
The utility model provides an oxygen assay device's positioner has overcome above-mentioned prior art not enough, and it can effectively solve current oxygen assay device and cause corrosive liquids to spill over easily because of experimenter manually operation and the cracked problem appears in the pipe among the experimental apparatus.
The technical scheme of the utility model is realized through following measure: the utility model provides an oxygen assay device's positioner, the intelligent cabinet temperature adjusting device comprises a cabinet body, there is fixed plate one along vertical fixed mounting in the internal portion left side of cabinet, fixed plate one divide into the cabinet body about spaced location room one and location room two, the inside downside of location room two has fixed plate two along horizontal fixed mounting, fixed plate two divides the location room into about spaced location room three and location room four, vertical fixed mounting is followed in the three inside left sides of location room three has fixed plate three, fixed plate three divides the location room four into about spaced location room five and location room six, six inside downsides of location room have fixed plate four along horizontal fixed mounting, fixed plate four divide into about spaced location room six and location room eight with location room six, the inside upside and the downside of location room one are provided with respectively and can follow the up-and-down position adjusting's of location room fly leaf one and fly leaf two.
The following are further optimization or/and improvement of the technical scheme of the utility model:
and a plurality of pairs of strip-shaped grooves with opposite openings are symmetrically arranged on the side walls of the two sides of the first positioning chamber.
A first fixing hole which is communicated up and down is formed in a second fixing plate at the bottom of the fifth positioning chamber, the first fixing hole is in a conical shape with a large top and a small bottom, a second fixing hole which is communicated up and down is formed in a fourth fixing plate, and a long hole which is communicated left and right is formed in the upper portion of a third fixing plate on the left side of the seventh positioning chamber.
The cabinet body is a wooden frame with a backboard, the length of the wooden frame is 100cm, the width of the wooden frame is 20cm, and the height of the wooden frame is 100 cm.
The middle part of the fifth positioning chamber is fixedly provided with a first chain, and the middle part of the seventh positioning chamber is vertically spaced and is fixedly provided with a second chain and a third chain in a left-right staggered manner.
The device also comprises an oxygen content measuring device, wherein the oxygen content measuring device comprises a first absorber and a second absorber, the device comprises a gas measuring pipe and a balance bottle, wherein a three-way piston is arranged at an inlet and an outlet at the top of the gas measuring pipe, an inlet and an outlet at the lower part of an absorber are communicated with an inlet and an outlet at the bottom of a second absorber, the top of the first absorber is communicated with an inlet and an outlet at the upper part of the three-way piston sequentially through a first thin glass guide pipe, a second thin glass guide pipe and a third thin glass guide pipe, a gas inlet and an outlet are further arranged at the upper part of the three-way piston, a rubber pipe is fixedly communicated between the inlet and the outlet at the bottom of the gas measuring pipe and the inlet and the outlet at the lower part of the balance bottle, the lower part of the gas measuring pipe is arranged in a first fixed hole, the lower part of the first absorber is arranged in a second fixed hole, the upper part of the gas measuring pipe is fixed on a cabinet body through a first chain, the upper part of the first absorber is fixed on the cabinet body through a second chain, and the balance bottle is arranged on a first movable plate or a second movable plate of a first positioning chamber.
The utility model has the advantages of reasonable and compact structure, high durability and convenient use, it fixes a position each laboratory ware in each positioning chamber, the position of the balanced bottle of lift is confirmed through two fly leafs for the experimenter need not adjust the position repeatedly, the experimental time has been shortened, work efficiency is improved, can satisfy the demand of survey oxygen content in each laboratory, avoided the experimenter manual operation to cause corrosive liquids to spill over and the cracked problem appears in the pipe among the experimental apparatus, have safety, laborsaving, simple and convenient, efficient characteristics.
Drawings
FIG. 1 is a schematic front view of a conventional oxygen content measuring apparatus.
Fig. 2 is a schematic structural view of the preferred embodiment of the present invention.
The codes in the figures are respectively: a is an absorber I, B is a rubber plug, C is an absorber II, D is a thin glass guide tube I, E is a thin glass guide tube II, F is a gas measuring tube, G is a three-way piston, H is a gas inlet and outlet, I is a thin glass guide tube III, J is a balance bottle, K is a rubber tube, 1 is a cabinet body, 2 is a fixing plate I, 3 is a positioning chamber I, 4 is a fixing plate II, 5 is a positioning chamber IV, 6 is a fixing plate III, 7 is a positioning chamber V, 8 is a fixing plate IV, 9 is a positioning chamber VII, 10 is a positioning chamber VIII, 11 is a movable plate I, 12 is a movable plate II, 13 is a fixing hole I, 14 is a fixing hole II, 15 is a long hole, 16 is a chain I, 17 is a chain II, and 18 is a chain III.
Detailed Description
The utility model discloses do not receive the restriction of following embodiment, can be according to the utility model discloses a technical scheme and actual conditions determine concrete implementation.
In the present invention, for convenience of description, the description of the relative position relationship of the components is described according to the layout mode of the attached fig. 2 of the specification, such as: the positional relationship of front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of fig. 2 of the specification.
The invention will be further described with reference to the following examples and drawings:
as shown in the attached drawing 2, a positioning device of an oxygen content measuring device comprises a cabinet body 1, a first fixing plate 2 is fixedly installed on the left side inside the cabinet body 1 along the vertical direction, the first fixing plate 2 divides the cabinet body 1 into a first positioning chamber 3 and a second positioning chamber which are spaced from each other at the left and right, a second fixing plate 4 is fixedly installed on the lower side inside the second positioning chamber along the horizontal direction, the second fixing plate 4 divides the second positioning chamber into a third positioning chamber and a fourth positioning chamber 5 which are spaced from each other at the upper and lower sides, a third fixing plate 6 is fixedly installed on the left side inside the third positioning chamber along the vertical direction, the third fixing plate 6 divides the fourth positioning chamber into a fifth positioning chamber 7 and a sixth positioning chamber which are spaced from each other at the left and right sides, a fourth fixing plate 8 is fixedly installed on the lower side inside the sixth positioning chamber along the horizontal direction, the fourth fixing plate 8 divides the sixth positioning chamber into a seventh positioning chamber 9 and an eighth positioning chamber 10 which are spaced from each other at the upper and lower sides inside the first positioning chamber 3, and a first movable plate 11 and a second movable plate 12 which can adjust the position along the first positioning chamber 3 are respectively arranged on the upper and the lower side.
The positioning device of the oxygen content measuring device can be further optimized or/and improved according to actual needs:
as shown in the attached figure 2, a plurality of pairs of strip-shaped grooves with opposite openings are symmetrically arranged on the side walls of the first positioning chamber 3.
The utility model discloses a position about the position was adjusted in the location room 3 of the cabinet body and was arranged in through the bar groove to fly leaf one 11 and fly leaf two 12, and fly leaf one 11 and fly leaf two 12 also can be through setting up a plurality of screw holes and screw adjustment about the top-down symmetry on the both sides lateral wall of location room 3.
As shown in fig. 2, a first fixing hole 13 penetrating up and down is formed in the second fixing plate 4 at the bottom of the fifth positioning chamber 7, the first fixing hole 13 is in a tapered shape with a large top and a small bottom, a second fixing hole 14 penetrating up and down is formed in the fourth fixing plate 8, and a long hole 15 penetrating left and right is formed in the upper portion of the third fixing plate 6 on the left side of the seventh positioning chamber 9.
As shown in the attached figure 2, a first chain 16 is fixedly arranged in the middle of the positioning chamber five 7, and a second chain 17 and a third chain 18 are fixedly arranged in the middle of the positioning chamber seven 9 in a vertically spaced and left-right staggered manner.
As shown in the attached figure 2, the oxygen content measuring device comprises an absorber A, an absorber II C, a gas measuring pipe F and a balance bottle J, a three-way piston G is arranged at an inlet and an outlet at the top of the gas measuring pipe F, an inlet and an outlet at the lower part of the absorber A are communicated with an inlet and an outlet at the bottom of the absorber II C, the top of the absorber A is communicated with an inlet and an outlet at the upper part of the three-way piston G sequentially through a thin glass conduit D, a thin glass conduit II E and a thin glass conduit III I, a gas inlet and an outlet H are further arranged at the upper part of the three-way piston G, a rubber pipe K is fixedly communicated between the inlet and the outlet at the bottom of the gas measuring pipe F and the inlet and the outlet at the lower part of the balance bottle J, the lower part of the gas measuring pipe F is arranged in a fixed hole I13, the lower part of the absorber A is arranged in a fixed hole II 14, the upper part of the gas measuring pipe F is fixed on a cabinet body 1 through a chain I16, and the upper part of the absorber A is fixed on the cabinet body 1 through a chain II 17, the middle part of the second absorber C is fixed on the cabinet body 1 through a third chain 18, and the balance bottle J is arranged on the first movable plate 11 or the second movable plate 12 of the first positioning chamber 3.
The utility model discloses the many batches of oxygen content can be surveyed to copper ammonia solution and copper wire that well used, when the first time is surveyed, need contain the volume of each container and the volume adjustment fly leaf 11 of copper ammonia solution and the position of fly leaf two 12 among the measuring device according to oxygen, the position that improves balanced bottle J is fly leaf one 11, the position that descends fly leaf two 12 is fly leaf two 12, then, the position of fly leaf one 11 and fly leaf two 12 when fixed first time survey, make it remain unchanged, when follow-up many times survey, because the fixed of the position of fly leaf one 11 and fly leaf two 12, do not need the handheld balanced bottle J adjusting position of experimenter, the problem that oxygen can not all be impressed in absorber A or copper ammonia solution overflows from absorber two C can not appear yet, the survey time has been shortened greatly.
The utility model discloses oxygen assay many times has been carried out to having changed the copper ammonia solution that became invalid in the absorber, having carried out oxygen once more and having contained the position of measurationing, still can adjust fly leaf one 11 and two 12 of fly leaf at will, consequently, the utility model discloses do not contain the restriction of the volume of measuring each container and copper ammonia solution among the measuring device by oxygen, can satisfy the demand of survey oxygen content in each laboratory.
The utility model discloses a make the reaction of oxygen and copper ammonia solution complete in the absorber A, can take off balance bottle J, put on the desktop, then rock around, the utility model discloses, can not cause thin glass pipe cracked problem to appear.
The utility model discloses with each laboratory ware location in each positioning chamber, the position of the balanced bottle J that goes up and down is fixed down through two fly leafs for the laboratory staff need not adjust balanced bottle position repeatedly, has shortened the experimental time, has improved work efficiency, can satisfy the demand of survey oxygen content in each laboratory, has avoided laboratory staff manual operation to cause corrosive liquids to spill over and the cracked problem appears in the pipe among the experimental apparatus.
The utility model discloses arrange absorber A lower part in two 14 in the fixed orifices, measure trachea F lower part and arrange in one 13 in the fixed orifices, measure trachea F upper portion and pass through a chain 16 to be fixed on the cabinet body 1, absorber A upper portion is fixed on the cabinet body 1 through two 17 in the chain, and absorber two C middle parts are fixed on the cabinet body 1 through three 18 in the chain for each laboratory ware in each cabinet body 1 is more firm, compares current oxygen content determination device and adopts the nylon rope to tie up absorber A, absorber two C and measure trachea F on the iron stand, the utility model discloses when having avoided when being full of liquid in absorber A and the measure trachea F weight great, the existence is difficult for binding, takes place dangerous problem easily.
Above technical feature constitutes the utility model discloses a best embodiment, it has stronger adaptability and best implementation effect, can increase and decrease unnecessary technical feature according to actual need, satisfies the demand of different situation.
The utility model discloses best embodiment's use: the lower part of an air measuring pipe F is placed at a first fixing groove 13 of a second fixing plate 4, the lower part of an absorber A is placed at a second fixing groove 14 of a fourth fixing plate 8, the air measuring pipe F, the absorber A and the absorber C are fixed on the cabinet body 1 through chains 17 respectively, the air measuring pipe F is communicated with a balance bottle J through a rubber pipe K, the air measuring pipe F is communicated with the absorber A through a thin glass guide pipe D, a thin glass guide pipe II E and a thin glass guide pipe III I, a three-way piston G at the top of the air measuring pipe F is coated with vaseline, after the air tightness of the device is checked, a processed copper wire is placed into the absorber A from the inlet at the bottom of the absorber A, a rubber plug B is plugged, and the air tightness is sealed.
Adding ammonia-ammonium chloride solution from the opening of the absorber II C to fill the absorber I A and partially remain in the absorber II C, adding a certain amount of prepared saturated sodium chloride solution from the inlet of the balance bottle J, placing the balance bottle J on the movable plate I11 to fill the gas pipe F with the saturated sodium chloride solution, allowing the redundant solution to flow out from the gas inlet and outlet H, rotating the three-way piston G to connect the gas pipe F with the absorber I, placing the balance bottle J on the movable plate II 12 to completely fill the fine glass conduit I, the fine glass conduit II, the fine glass conduit III and the inlet of the three-way piston G, immediately closing the three-way piston G, increasing the balance bottle J when gas and part of ammonia-ammonium chloride solution enter the gas pipe F, rotating the three-way piston G to discharge the ammonia-ammonium chloride solution from the gas inlet and outlet H, connecting the other end of the rubber pipe K connected with oxygen to the gas inlet and outlet H, opening the three-way piston G to enable oxygen to enter the air measuring pipe F, and closing the three-way piston G when the liquid level stays at the 0 scale mark; placing a balance bottle J on a first movable plate 11, converting a three-way piston G knob, adjusting the position of the first movable plate 11, fixing the position of the first movable plate 11 when oxygen in a gas measuring pipe F completely enters an absorber A, converting the three-way piston G knob, closing a passage, taking down the balance bottle J at the moment and placing the balance bottle J on a table top, shaking the balance bottle J back and forth to accelerate the reaction of the oxygen and the copper ammonia solution in the absorber A, placing the balance bottle J on a second movable plate 12 after the reaction is finished, opening the three-way piston G, adjusting the position of the second movable plate 12 to ensure that when residual gas completely flows back to the gas measuring pipe F, fixing the position of the second movable plate 12, reading out an oxygen content result in the gas measuring pipe F, measuring the oxygen content of multiple batches by fixing the positions of the first movable plate 11 and the second movable plate 12 during the first oxygen content measurement, and measuring the oxygen content for multiple times, and the absorber is replaced with the invalid copper ammonia solution, and the positions of the first movable plate 11 and the second movable plate 12 can still be freely adjusted when the oxygen content is measured again.
Claims (6)
1. The utility model provides a positioner of oxygen assay device, a serial communication port, the cabinet is internal, there is a fixed plate one along vertical fixed mounting in the left side of the internal portion of cabinet, fixed plate one divide into the cabinet body about spaced location room one and location room two, the inside downside of location room two has a fixed plate two along horizontal fixed mounting, fixed plate two divides the location room into about spaced location room three and location room four, vertical fixed mounting is followed in the left side of the three internal portions of location room three has a fixed plate three, fixed plate three divides the location room four into about spaced location room five and location room six, the six internal portions of location room downside along horizontal fixed mounting has a fixed plate four, fixed plate four divides the location room six into about spaced location room seven and location room eight, the inside upside and the downside of location room one are provided with respectively can be along the first fly leaf and the fly leaf two of adjusting position about the location room one.
2. The positioning device for an oxygen measuring device according to claim 1, wherein a plurality of pairs of strip-shaped grooves with opposite openings are symmetrically arranged on the side walls of the first positioning chamber.
3. The positioning device for an oxygen measuring apparatus according to claim 1 or 2, wherein a first fixing hole penetrating vertically is provided in a second fixing plate at the bottom of the fifth positioning chamber, the first fixing hole is tapered with a large upper portion and a small lower portion, a second fixing hole penetrating vertically is provided in a fourth fixing plate, and a long hole penetrating horizontally is provided in an upper portion of a third fixing plate at the left side of the seventh positioning chamber.
4. The positioning device of an oxygen content measuring device according to claim 1 or 2, wherein a first chain is fixedly arranged in the middle of the fifth positioning chamber, and a second chain and a third chain are fixedly arranged in the middle of the seventh positioning chamber in a vertically spaced and laterally staggered manner.
5. The positioning device of an oxygen content measuring device according to claim 3, wherein a first chain is fixedly arranged in the middle of the fifth positioning chamber, and a second chain and a third chain are fixedly arranged in the middle of the seventh positioning chamber in a vertically spaced and laterally staggered manner.
6. The positioning device for an oxygen content measuring device according to claim 3, further comprising an oxygen content measuring device, wherein the oxygen content measuring device comprises a first absorber, a second absorber, a gas measuring tube and a balance bottle, a three-way piston is arranged at an inlet and an outlet at the top of the gas measuring tube, a lower inlet and an outlet at the lower part of the absorber are communicated with an inlet and an outlet at the bottom of the second absorber, the top of the first absorber is communicated with an inlet and an outlet at the upper part of the three-way piston sequentially through a first fine glass guide tube, a second fine glass guide tube and a third fine glass guide tube, a gas inlet and an outlet are further arranged at the upper part of the three-way piston, a rubber tube is fixedly communicated between the inlet and the outlet at the bottom of the gas measuring tube and the inlet and the outlet at the lower part of the balance bottle, the lower part of the gas measuring tube is arranged in the first fixing hole, the lower part of the first absorber is arranged in the second fixing hole, the upper part of the gas measuring tube is fixed on the cabinet body through the first chain, the middle part of the absorber II is fixed on the cabinet body through a chain III, and the balance bottle is arranged on the movable plate I or the movable plate II of the positioning chamber I.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120847469.4U CN214668933U (en) | 2021-04-23 | 2021-04-23 | Positioning device of oxygen content measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120847469.4U CN214668933U (en) | 2021-04-23 | 2021-04-23 | Positioning device of oxygen content measuring device |
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| CN214668933U true CN214668933U (en) | 2021-11-09 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114994240A (en) * | 2022-05-07 | 2022-09-02 | 湖南省药品审核查验中心 | Oxygen concentration detection device and detection method |
| CN115015476A (en) * | 2022-05-24 | 2022-09-06 | 北京科技大学 | Automatic copper ammonia solution oxygen measuring instrument based on integrated gas-liquid flow passage module and testing method |
-
2021
- 2021-04-23 CN CN202120847469.4U patent/CN214668933U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114994240A (en) * | 2022-05-07 | 2022-09-02 | 湖南省药品审核查验中心 | Oxygen concentration detection device and detection method |
| CN114994240B (en) * | 2022-05-07 | 2023-10-27 | 湖南省药品审核查验中心 | Oxygen concentration detection device and detection method |
| CN115015476A (en) * | 2022-05-24 | 2022-09-06 | 北京科技大学 | Automatic copper ammonia solution oxygen measuring instrument based on integrated gas-liquid flow passage module and testing method |
| CN115015476B (en) * | 2022-05-24 | 2023-02-28 | 北京科技大学 | Automatic copper ammonia solution oxygen measuring instrument based on integrated gas-liquid flow passage module and testing method |
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