CN205067266U - Portable detection device of oxygen concentration chemistry volumetric method - Google Patents
Portable detection device of oxygen concentration chemistry volumetric method Download PDFInfo
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- CN205067266U CN205067266U CN201520779020.3U CN201520779020U CN205067266U CN 205067266 U CN205067266 U CN 205067266U CN 201520779020 U CN201520779020 U CN 201520779020U CN 205067266 U CN205067266 U CN 205067266U
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Abstract
The utility model discloses a portable detection device of oxygen concentration chemistry volumetric method, including an eudiometer tube, eudiometer tube upper end and the decurrent export of tee bend piston intercommunication, the air inlet of tee bend piston is used for communicateing by the oxygen determination air supply, and another export of tee bend piston is through the connecting pipe intercommunication of first rubber tube with the type of falling U, the connecting pipe other end downwards through the U -shaped pipe intercommunication of second rubber tube with the absorption bottle front end, is provided with the capillary respectively again in the U -shaped pipe of connecting pipe and absorption bottle front end, port intercommunication on the U type of absorption bottle front end pipe and the absorption bottle, the side opening of absorption bottle lower extreme upwards is connected with the liquid seal bottle, the last port of liquid seal bottle is uncovered, the absorption bottle down actually the mouth be provided with rubber and fill in, the eudiometer tube lower extreme passes through the side joint mouth intercommunication of third rubber tube and leveling bottle lower part, is provided with a spring clamp on this third rubber tube. The utility model discloses a device is avoided producing and is mixed liquid liquid leakage phenomenon, conveniently carries, and the leveling bottle is placed stably during the inspection, and the operability is good.
Description
Technical field
The utility model belongs to Iatrochemistry testing equipment technical field, relates to a kind of oxygen concentration chemical capacity method portable detecting device.
Background technology
Medical molecular sieve oxygen generation equipment utilizes molecular sieve pressure-variable adsorption principle to carry out obtained oxygen.During its work, air is injected in a closed container that molecular sieve is housed, pressure in container can increase, molecular sieve is wherein along with the rising of environmental pressure, nitrogen in a large amount of absorbed air, oxygen in air then still exists in gaseous form, and is collected through certain pipeline.This process is commonly called " absorption " process.When the molecular sieve adsorption nitrogen in container acquires a certain degree, be exhausted decompression to container, molecular sieve is along with the reduction of environmental pressure, and the ability of absorption nitrogen declines, and nitrogen is released from molecular sieve inside, discharges as waste gas.This process is commonly called " desorb ".General oxygen generating plant, for ensureing the output that oxygen is continual and steady, many employings two (or multiple) sieve containers, by controlling, while making a container be in adsorption process, another container is in desorption process, and vice versa.
Because molecular sieve oxygen generation equipment at any time can oxygen, and family's use type container is easy to carry, so widely use in medical institutions of China, family.To the inspection principle of oxygen be copper ammon solution absorption process measure oxygen content, device be main body by eudiometer tube, absorption bottle and leveling bottle three part form, centre is connected with rubber tube by kapillary, getting a certain amount of sample gas during inspection is enclosed in absorption bottle, then carry out complete reaction with the cuprammonia in absorption bottle, the amount being caused gas to reduce by absorbing because of oxygen is oxygen content.
The oxygen concentration method of inspection quoted in existing molecular sieve oxygen generation equipment test stone is copper ammon solution absorption process, and the method is also referee method.The field test of existing molecular sieve oxygen generation equipment oxygen concentration, most use oxygen concentration on-line detector, what it adopted is electrochemical principle, reacted by inner lambda sensor and tested gas, relevant voltage signal is exported after producing oxygen, send into analyser processor after treatment, thus convert corresponding concentration value to and show on liquid crystal display.This kind of detector requires that gas must be clean and corrosion-free, therefore higher to tested demand, and sensor is very accurate simultaneously, transport, store and detect in easily occur departing from, life cycle is very short, needs periodic calibration.The most key is detect the oxygen concentration of medical molecular sieve oxygen generation equipment in existing industry standard, standard-required chemical capacity method and copper ammon solution absorption process are arbitration detection method, and also there is not similar oxygen concentration chemical capacity method portable detecting device in the market, therefore apply for this pick-up unit and promote very necessary.
Utility model content
The purpose of this utility model is to provide a kind of oxygen concentration chemical capacity method portable detecting device, solves existing electrochemistry oxygen concentration detector and is checking the sensor existed in oxygen process very accurate, in transport, store and easily occur departing from detection; And easily occur that absorbing liquid is excessive by the copper ammon solution absorption process pick-up unit that standard-required is produced, operate and carry the problem of inconvenience.
The technical scheme that the utility model adopts is, a kind of oxygen concentration chemical capacity method portable detecting device, comprise an eudiometer tube, eudiometer tube upper end and the downward outlet of stop,threeway, the air intake opening of stop,threeway is for being communicated with tested source of oxygen, and another outlet of stop,threeway is communicated with the connecting pipe of inverted U by the first rubber tube; The connecting pipe other end passes downwardly through the second rubber tube again and is communicated with the U-shaped pipe of absorption bottle front end, in the U-shaped pipe of connecting pipe and absorption bottle front end, be respectively arranged with kapillary; The U-tube of absorption bottle front end is communicated with absorption bottle upper port, and the side opening of absorption bottle lower end is upwards connected with fluid-tight bottle, and the upper port of fluid-tight bottle is uncovered, and under absorption bottle, bottom mouth is provided with rubber plug; Eudiometer tube lower end is communicated with the side interface of leveling bottle bottom by the 3rd rubber tube, the 3rd rubber tube is provided with a spring clamp.
Oxygen concentration chemical capacity method portable detecting device of the present utility model, is further characterized in that:
Leveling bottle is 500mL tubualted bottle.
The spheroid internal diameter of fluid-tight bottle is 75mm.
The beneficial effects of the utility model are, eudiometer tube scale is accurate, meets the requirements through measurement verification; By increasing the internal diameter of fluid-tight bottle, avoid producing the mixed liquor phenomenon of leakage; Change leveling bottle into 500mL glass tubualted bottle by microscler round-bottomed bottle, when being therefore convenient for carrying when going out inspection and checking, leveling bottle base is comparatively large simultaneously, is convenient to stable placement.Spring clamp is added in addition on the rubber tube connecting leveling bottle and eudiometer tube, experimentally requirement, when oxygen inlet tracheae is just over 100mL, the connection between eudiometer tube and leveling bottle will be interrupted, therefore in the middle of proofed sleeve, spring clamp is added, can clamp rubber tube easily and fast, this is for infrequently operation or the new checker operating this device are helpful.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model device;
Fig. 2 is the absorption bottle structural representation in the utility model device.
In figure, 1. eudiometer tube, 2. stop,threeway, 3. connecting pipe, 4. kapillary, 5. absorption bottle, 6. fluid-tight bottle, 7. leveling bottle, 8. spring clamp.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Black matrix pipeline in Fig. 1 represents kapillary; Twill pipeline represents rubber tube; Absorption bottle 5 lower port twill represents rubber plug.
With reference to Fig. 1, Fig. 2, structure of the present utility model is, comprise an eudiometer tube 1, eudiometer tube 1 upper end and the downward outlet of stop,threeway 2, the air intake opening (top-left position) of stop,threeway 2 is for being communicated with tested source of oxygen, and another outlet (upper-right position) of stop,threeway 2 is communicated with the connecting pipe 3 of inverted U by the first rubber tube; Connecting pipe 3 other end passes downwardly through the second rubber tube again and is communicated with the U-shaped pipe of absorption bottle 5 front end, in the U-shaped pipe of connecting pipe 3 and absorption bottle 5 front end, be respectively arranged with kapillary 4; The U-tube of absorption bottle 5 front end is communicated with absorption bottle 5 upper port, and the side opening of absorption bottle 5 lower end is upwards connected with fluid-tight bottle 6, and the upper port of fluid-tight bottle 6 is uncovered, and absorption bottle 5 times bottom mouths are provided with rubber plug; Eudiometer tube 1 lower end is communicated with the side interface of leveling bottle 7 bottom by the 3rd rubber tube, the 3rd rubber tube is provided with a spring clamp 8.
Eudiometer tube 1 be after tolerance oxygen reacts completely in absorption bottle 5 copper ammon solution absorb the important measurer of oxygen volume, the scale on it can show the concrete volume of absorbed tested oxygen;
Stop,threeway 2 is switch modules that eudiometer tube 1 is connected with tested source of oxygen, absorption bottle 5 or closes.In the preparatory stage, inject mixed liquor toward leveling bottle 7 li, rotate stop,threeway 2, eudiometer tube 1 is communicated with leveling bottle 7.Make eudiometer tube 1, connecting pipe 3, absorption bottle 5 and the pipeline that connects thereof be full of mixed liquor by the lifting of leveling bottle 7, regulate the liquid level of fluid-tight bottle 6 to appropriate location.Close stop,threeway 2, if the liquid level of eudiometer tube 1 li does not reduce after leveling bottle 7 of loweing, illustrate that one-piece construction is air tight, whole device good seal; In operational phase, rotate stop,threeway 2, eudiometer tube 1 is communicated with absorption bottle 5, reduce leveling bottle 7, make the residual gas in absorption bottle 5 all get back in eudiometer tube 1;
Connecting pipe 3 is the assemblies connecting eudiometer tube 1 and absorption bottle 5;
Kapillary 4 is in experimentation, make oxygen flow can be passed in absorption bottle 5 by eudiometer tube 1 with comparatively low rate, and unreacted residual gas is passed in eudiometer tube 1 slowly by absorption bottle 5 again.Why using kapillary 4, is because when in experimentation, oxygen flows back and forth between eudiometer tube 1 and absorption bottle 5, is unlikely to cause the splashing of mixed liquor or oxygen to overflow fluid-tight bottle 6 liquid level because pressure is excessive;
Absorption bottle 5 is devices that oxygen and mixed liquor react;
Fluid-tight bottle 6 is in process of the test when oxygen passes into absorption bottle 5 by eudiometer tube 1, and the liquid level in fluid-tight bottle 6 slowly raises, and makes to test the oxygen that gathers and is present in the sealed environment that an external world completely cuts off completely; Absorption bottle 5 and fluid-tight bottle 6 are integral productions.
Level comments 7 at reaction initial period splendid attire mixed liquor, comes the rising and the reduction that mix liquid level in controlled quentity controlled variable tracheae 1 by the lifting of leveling bottle 7 simultaneously; The leveling bottle that existing standard requires be circular without base, because needs are gone out field test, in order to carry and easy to operate, and stable in order to place, the leveling bottle in the utility model have employed the tubualted bottle setting of the 500mL being with side interface.
Spring clamp 8 is after gas inlet tracheae reaches the volume (just over 100mL) of standard-required, rubber tube clamped by rapid spring clamp 8, then leveling bottle 7 is raised, make its liquid level a little more than the liquid level in eudiometer tube, then micro-loose spring clamp 8, makes the liquid level in eudiometer tube 1 again clamp rubber tube to during zeromark.
In use because of the change of operating personnel, everyone operating experience and level uneven, the small volume of existing fluid-tight bottle 6, mixed liquor wherein has the situation of spilling when testing, fluid-tight bottle 6 is overflowed in order to prevent mixed liquor, change the spheroid internal diameter of existing fluid-tight bottle 6 into 75mm by 65mm, expand the volume of fluid-tight bottle 6.
With reference to Fig. 1, Fig. 2, the course of work of the present utility model is,
1, the preliminary work before measuring:
1.1) open rubber plug, copper wire is filled absorption bottle 5, more stifled good rubber plug.With three sections of rubber tubes, associated components is connected in turn, and in stop,threeway 2, embrocates a small amount of vacuum cock fat, improve lubrication and sealing property;
1.2) inject mixed liquor toward leveling bottle 7 li, rotate stop,threeway 2, eudiometer tube 1 is communicated with absorption bottle 5, make eudiometer tube 1, connecting pipe 3, absorption bottle 5 and the pipeline that connects thereof be full of mixed liquor with the lifting of leveling bottle 7, need mixed liquor to be about 550mL altogether;
1.3) liquid level in adjustment fluid-tight bottle 6 is to appropriate location.Close stop,threeway 2, leveling bottle 7 of loweing, it is air tight that the liquid level as eudiometer tube 1 li does not reduce explanation single unit system, good seal;
2, the operation steps of determination of oxygen content:
2.1) rotate stop,threeway 2, absorption bottle 5 is communicated with eudiometer tube 1, reduce leveling bottle 7, make the residual gas in absorption bottle 5 all proceed in eudiometer tube 1;
2.2) rotate stop,threeway 2, eudiometer tube 1 is communicated with air.Improve leveling bottle 7, close stop,threeway 2 after making mixed liquor all be full of eudiometer tube 1 and stop,threeway arm, all air namely in discharge rate tracheae 1;
2.3) oxygen port is entered with proofed sleeve in being connected with stop,threeway 2 air intake opening by tested source of oxygen, open rapidly stop,threeway 2, make in tested oxygen inlet tracheae 1, when entering tested oxygen air inflow just over 100mL, connect the 3rd rubber tube of eudiometer tube 1 and leveling bottle 7 side interface with spring clamp 8 clamping, and remove rapidly the tested source of oxygen connected.Raise fluid-tight bottle 6, make its liquid level a little more than the liquid level in eudiometer tube 1, micro-loose spring clamp 8, make liquid level in eudiometer tube 1 again clamp rubber tube with spring clamp 8 to during zeromark;
2.4) rotate stop,threeway 2, eudiometer tube 1 is communicated with absorption bottle 5, slowly lifts leveling bottle 7, make oxygen all enter absorption bottle 5, close stop,threeway 2;
2.5) carefully and fully shake absorption bottle 5, after about 3 minutes, rotate stop,threeway 2, make the slow back amount tracheae 1 of the residual gas in absorption bottle 5, when mixed liquor firm influx tracheae 1, close stop,threeway 2.Lift leveling bottle 7, liquid level is wherein flushed with the liquid level of eudiometer tube 1.The scale value that read volume tracheae 1 liquid level is corresponding, is the content of tested oxygen in sample, removes the rubber stopper of absorption bottle 5 end mouth after off-test, takes out copper wire and cleans up.
Claims (3)
1. an oxygen concentration chemical capacity method portable detecting device, it is characterized in that: comprise an eudiometer tube (1), eudiometer tube (1) upper end and the downward outlet of stop,threeway (2), the air intake opening of stop,threeway (2) is for being communicated with tested source of oxygen, and another outlet of stop,threeway (2) is communicated with the connecting pipe (3) of inverted U by the first rubber tube; Connecting pipe (3) other end passes downwardly through the second rubber tube again and is communicated with the U-shaped pipe of absorption bottle (5) front end, in the U-shaped pipe of connecting pipe (3) and absorption bottle (5) front end, be respectively arranged with kapillary (4); The U-tube of absorption bottle (5) front end is communicated with absorption bottle (5) upper port, the side opening of absorption bottle (5) lower end is upwards connected with fluid-tight bottle (6), the upper port of fluid-tight bottle (6) is uncovered, and under absorption bottle (5), bottom mouth is provided with rubber plug; Eudiometer tube (1) lower end is communicated with the side interface of leveling bottle (7) bottom by the 3rd rubber tube, the 3rd rubber tube is provided with a spring clamp (8).
2. oxygen concentration chemical capacity method portable detecting device according to claim 1, is characterized in that: described leveling bottle (7) is 500mL tubualted bottle.
3. oxygen concentration chemical capacity method portable detecting device according to claim 1, is characterized in that: the spheroid internal diameter of described fluid-tight bottle (6) is 75mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520779020.3U CN205067266U (en) | 2015-10-09 | 2015-10-09 | Portable detection device of oxygen concentration chemistry volumetric method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520779020.3U CN205067266U (en) | 2015-10-09 | 2015-10-09 | Portable detection device of oxygen concentration chemistry volumetric method |
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| CN205067266U true CN205067266U (en) | 2016-03-02 |
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| CN201520779020.3U Expired - Fee Related CN205067266U (en) | 2015-10-09 | 2015-10-09 | Portable detection device of oxygen concentration chemistry volumetric method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106153408A (en) * | 2016-08-30 | 2016-11-23 | 宜昌市得心实用气体有限公司 | Oxygen purity on-line detecting system |
| CN106645589A (en) * | 2017-01-20 | 2017-05-10 | 中国人民解放军第四军医大学 | High-precision automated oxygen concentration detector based on cuprammonium process as well as method |
| 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 |
-
2015
- 2015-10-09 CN CN201520779020.3U patent/CN205067266U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106153408A (en) * | 2016-08-30 | 2016-11-23 | 宜昌市得心实用气体有限公司 | Oxygen purity on-line detecting system |
| CN106153408B (en) * | 2016-08-30 | 2018-08-28 | 宜昌市得心实用气体有限公司 | Oxygen purity on-line detecting system |
| CN106645589A (en) * | 2017-01-20 | 2017-05-10 | 中国人民解放军第四军医大学 | High-precision automated oxygen concentration detector based on cuprammonium process as well as method |
| CN106645589B (en) * | 2017-01-20 | 2023-02-07 | 中国人民解放军第四军医大学 | High-precision and automatic oxygen concentration detector and method based on cuprammonia method |
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 Termination date: 20181009 |