CN205760494U - Desulfuration reaction device and desulphurization reaction system - Google Patents

Desulfuration reaction device and desulphurization reaction system Download PDF

Info

Publication number
CN205760494U
CN205760494U CN201620578350.0U CN201620578350U CN205760494U CN 205760494 U CN205760494 U CN 205760494U CN 201620578350 U CN201620578350 U CN 201620578350U CN 205760494 U CN205760494 U CN 205760494U
Authority
CN
China
Prior art keywords
reaction device
desulfuration
cavity
end cap
desulfuration reaction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201620578350.0U
Other languages
Chinese (zh)
Inventor
丁湘华
雍晓华
杨莲育
卜玲慧
刘建荣
曾丽华
彭健
刘静
艾肯江·吾不力哈斯木
潘莺
李楠
田波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Petroleum and Natural Gas Co Ltd
Original Assignee
China Petroleum and Natural Gas Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Petroleum and Natural Gas Co Ltd filed Critical China Petroleum and Natural Gas Co Ltd
Priority to CN201620578350.0U priority Critical patent/CN205760494U/en
Application granted granted Critical
Publication of CN205760494U publication Critical patent/CN205760494U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Gas Separation By Absorption (AREA)

Abstract

This utility model provides a kind of desulfuration reaction device and desulphurization reaction system, and wherein, desulfuration reaction device includes: housing, and housing has cavity, and one end of cavity has hatch frame;It is removably disposed in the end cap at hatch frame, end cap offers two through holes of through end cap;A through hole in drainage tube, the first end of drainage tube and two through holes connects, and the second end of drainage tube stretches out in cavity.This utility model solves the problem of poor stability when desulfurizing agent carries out in prior art desulfurized effect assessment experiment.

Description

Desulfuration reaction device and desulphurization reaction system
Technical field
This utility model relates to desulphurization plant technical field, anti-in particular to a kind of desulfuration reaction device and desulfurization Answer system.
Background technology
The exploitation of the oil-gas reservoir containing hydrogen sulfide is the important component part in petroleum and natural gas exploitation field.
Hydrogen sulfide, as subsidiary output material a kind of in oilfield exploitation procedure, can cause pollution and the harm of environment, But also hardware can be caused serious corrosion failure, oil production equipment is caused damage.
Moreover, hydrogen sulfide is the hypertoxic chemical substance that a kind of toxicity is only second to cyanide, and people in its serious threat Life security, in recent years, in oil, chemical industry, hydrogen sulfide poisoning accident happens occasionally.
Before the exploitation of oil gas field, need to be stored at the hydrogen sulfide being mingled with in the oil gas of underground character, source with And proportional amount sufficiently understands, so could effectively strengthen the monitoring to hydrogen sulfide and the content for hydrogen sulfide is adopted Take the safeguard procedures of necessity, guarantee safe production, keep human and environment harmonious development.
Desulfurizing agent is widely used protection medicament in the development process of oil gas field, and it can effectively absorb hydrogen sulfide. And before using a kind of desulfurizing agent, need the desulfurization performance of this kind of desulfurizing agent is estimated experiment, meet relevant desulfurization mark Standard can use in the development process of oil gas field, and existing laboratory is not specifically designed for desulfurizing agent and carries out desulfurized effect The reaction unit of assessment experiment and system, laboratory worker typically uses glass wares and silica gel tube to connect into easy reaction Device carries out desulfurized effect assessment experiment, so, in experimentation, easily causes the leakage of hydrogen sulfide and pollutes environment, very To causing personnel to be poisoned or the accident of death, there is serious potential safety hazard.
Utility model content
Main purpose of the present utility model is to provide a kind of desulfuration reaction device and desulphurization reaction system, existing to solve Desulfurizing agent is carried out the problem of poor stability during desulfurized effect assessment experiment by technology.
To achieve these goals, according to an aspect of the present utility model, it is provided that a kind of desulfuration reaction device, bag Including: housing, housing has cavity, and one end of cavity has hatch frame;It is removably disposed in the end cap at hatch frame, end Cover two through holes offering through end cap;A through hole in drainage tube, the first end of drainage tube and two through holes connects, Second end of drainage tube stretches out in cavity.
Further, through hole includes the tilting section that is sequentially connected with and vertical section, and wherein, tilting section is by vertical section and cavity Connection.
Further, the hole sectional area of tilting section is gradually reduced along the direction near vertical section.
Further, two through holes are arranged relative to the axisymmetrical of end cap.
Further, desulfuration reaction device also includes the multiple shackle member being movably arranged on end cap, multiple shackle member around Being provided at circumferentially spaced of end cap, end cap is by multiple shackle member and housing clamping.
Further, desulfuration reaction device also includes stirring motor, puddler and the stirring paddle being sequentially connected with, stirring motor Being positioned at the outside of cavity, one end deviating from stirring motor of puddler is stretched in cavity along the axis of end cap through end cap.
Further, housing is made up of stainless steel alloy.
According to another aspect of the present utility model, it is provided that a kind of desulphurization reaction system, including the first pipe sequentially connected Road, desulfuration reaction device and the second pipeline, one end away from desulfuration reaction device of the first pipeline connects with breather assembly, One end away from desulfuration reaction device of second pipeline connects with exhaust gas absorption device, and the desulfurization that desulfuration reaction device is above-mentioned is anti- Answer device.
Further, breather assembly includes the first breather and the second breather being arranged in parallel.
Further, desulphurization reaction system also includes: the first flow quantifier being arranged on the first pipeline, first flow Quantifier is arranged between breather assembly and desulfuration reaction device;The second flow metering connected with exhaust gas absorption device Device, second flow quantifier is by exhaust gas absorption device and the second pipeline connection.
Application the technical solution of the utility model, by arranging dismountable end at the hatch frame at the cavity of housing Lid.Thus after desulfurizing agent and hydrogen sulfide are added in cavity, desulfurizing agent or hydrogen sulfide are in limited confined space.
By offering two through holes of through end cap on end cap, so that the cavity of desulfuration reaction device is built with outside Erect reaction stream.
By arranging drainage tube, and a through hole in the first end of drainage tube and two through holes is connected, drainage tube Second end stretches out in cavity.So, utilizing the drain performance of drainage tube, desulfurizing agent can be added into by through hole and drainage tube To the bottom of cavity, prevent desulfurizing agent from sputtering, and, hydrogen sulfide gas also can be passed into cavity by through hole and drainage tube Bottom is also directly fully reacted with desulfurizing agent, thus by the metering addition amount of desulfurizing agent and the hydrogen sulfide that is passed in cavity Amount, and measure abundant reacted hydrogen sulfide whether remain and complete desulfurizing agent desulfurized effect assessment experiment.
Desulfurized effect at whole desulfurizing agent is assessed in experiment, and hydrogen sulfide is anti-in being in the cavity of desulfuration reaction device Should, without being overflowed to space outerpace by cavity, ensure that the safety of the desulfurized effect assessment experiment of desulfurizing agent.
Accompanying drawing explanation
The Figure of description of the part constituting the application is used for providing being further appreciated by of the present utility model, this practicality Novel schematic description and description is used for explaining this utility model, is not intended that improper restriction of the present utility model. In the accompanying drawings:
Fig. 1 shows the structural representation of the desulfuration reaction device according to a kind of optional embodiment of the present utility model;
Fig. 2 shows the equipment flowsheet of the desulphurization reaction system according to a kind of optional embodiment of the present utility model.
Wherein, above-mentioned accompanying drawing includes the following drawings labelling:
1, the first pipeline;2, desulfuration reaction device;3, the second pipeline;4, breather assembly;41, the first breather; 42, the second breather;5, exhaust gas absorption device;6, first flow quantifier;7, second flow quantifier;10, housing;11、 Cavity;20, end cap;21, through hole;211, tilting section;212, vertical section;30, drainage tube;40, shackle member;50, stirring motor; 60, puddler;70, stirring paddle.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can phases Combination mutually.Describe this utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
It it is noted that described further below is all exemplary, it is intended to provide further instruction to the application.Unless it is another Indicating, all technology used herein and scientific terminology have usual with the application person of an ordinary skill in the technical field The identical meanings understood.
In this utility model, in the case of illustrating on the contrary, the noun of locality of use such as " upper and lower, top, the end " is generally For direction shown in the drawings, or for parts this on vertical, vertical or gravity direction for;With Sample ground, for ease of understanding and describing, it is inside and outside that " inside and outside " refers to relative to the profile of each parts itself, but the above-mentioned noun of locality is also It is not used in restriction this utility model.
In order to solve of the prior art desulfurizing agent carried out desulfurized effect assessment experiment time poor stability problem, this reality Providing a kind of desulfuration reaction device and desulphurization reaction system with novel, wherein, desulfuration reaction device is following desulphurization reaction Device, desulphurization reaction system includes above-mentioned desulfuration reaction device.
As it is shown in figure 1, desulfuration reaction device 2 includes housing 10, it is removably disposed in end cap 20 He at hatch frame Drainage tube 30;Wherein, housing 10 has cavity 11, and one end of cavity 11 has hatch frame, and end cap 20 offers through end Two through holes 21 of lid 20, a through hole 21 in the first end of drainage tube 30 and two through holes 21 connects, the of drainage tube 30 Two ends stretch out in cavity 11.
By arranging detachable end 20 at the hatch frame at the cavity 11 of housing 10.Thus desulfurizing agent and hydrogen sulfide After being added in cavity 11, desulfurizing agent or hydrogen sulfide are in limited confined space.
By offering two through holes 21 of through end cap 20 on end cap 20, so that the cavity of desulfuration reaction device 2 11 set up reaction stream with outside.
By arranging drainage tube 30, and a through hole 21 in the first end of drainage tube 30 and two through holes 21 is connected, Second end of drainage tube 30 stretches out in cavity 11.So, utilizing the drain performance of drainage tube 30, desulfurizing agent can pass through through hole 21 and drainage tube 30 be added into the bottom of cavity 11, prevent desulfurizing agent from sputtering, and, hydrogen sulfide gas also can pass through through hole 21 It is passed into the bottom of cavity 11 with drainage tube 30 and directly fully reacts with desulfurizing agent, thus adding desulfurizing agent by metering The amount of the hydrogen sulfide measured and be passed in cavity 11, and measure whether abundant reacted hydrogen sulfide remains and complete desulfurizing agent Desulfurized effect assessment experiment.
Alternatively, housing 10 is made up of stainless steel alloy.So, improve the antiseptic property of housing 10, it is to avoid sulfuration Housing 10 is caused chemical attack by hydrogen, improves the dependability of desulfuration reaction device 2.
Desulfurized effect at whole desulfurizing agent is assessed in experiment, and hydrogen sulfide is in the cavity 11 of desulfuration reaction device 2 Reaction, without being overflowed to space outerpace by cavity 11, ensures that the safety of the desulfurized effect assessment experiment of desulfurizing agent.
As it is shown in figure 1, through hole 21 includes tilting section 211 and the vertical section 212 being sequentially connected with, wherein, tilting section 211 passes through Vertically section 212 connects with cavity 11.So, by the tilting section 211 of through hole 21 is convenient, desulfuration reaction device 2 is reacted with other Device connects, but also facilitates the connection between drainage tube 30 and the vertical section 212 of through hole 21 or dismounting, improves desulphurization reaction The property easy to use of device 2.Moreover, the desulfurizing agent in the through hole 21 in bending shape can also prevent cavity 11 or hydrogen sulfide Gas overflowing, improves the safety in utilization of desulfuration reaction device 2.
As it is shown in figure 1, the hole sectional area of tilting section 211 is gradually reduced along the direction near vertical section 212.So, not On the premise of affecting the drain performance of through hole 21, through hole 21 also has certain receiving space, when adding desulfurizing agent to cavity 11 Time, it is possible to it is effectively prevented from causing desulfurizing agent to overflow at through hole 21 because adding desulfurizing agent excess, thus it is anti-to improve desulfurization Answer the practicality of device 2.
As it is shown in figure 1, two through holes 21 are arranged relative to the axisymmetrical of end cap 20.So, in two through holes 21 Individual as filling opening or blow vent, and another in two through holes is as the evacuation port of gas after reaction, two through holes 21 In the relative two ends of end cap 20, increase the distance between two through holes 21, it is to avoid two through holes 21 operationally dry Disturb.
As it is shown in figure 1, desulfuration reaction device 2 also includes the multiple shackle member 40 being movably arranged on end cap 20, multiple cards Fitting 40 is provided at circumferentially spaced around end cap 20, and end cap 20 is by multiple shackle member 40 and housing 10 clamping.So, shackle member 40 End cap 20 is fastened on the housing 10, it is effectively guaranteed the sealing of end cap 20 and the junction of housing 10, it is to avoid sulfuration Hydrogen is excessive with the junction of housing 10 and pollute environment or cause personnel to be poisoned by end cap 20.
As it is shown in figure 1, desulfuration reaction device 2 also includes stirring motor 50, puddler 60 and the stirring paddle 70 being sequentially connected with, Stirring motor 50 is positioned at the outside of cavity 11, and one end deviating from stirring motor 50 of puddler 60 passes end along the axis of end cap 20 Lid 20 stretches in cavity 11.So, driving puddler 60 and stirring paddle 70 to rotate by stirring motor 50, stirring paddle 70 can stir Desulfurizing agent in dynamic cavity 11, adds desulfurizing agent and the contact area of the hydrogen sulfide gas being passed through in desulfurizing agent, makes desulfurizing agent Fully react with hydrogen sulfide, it is ensured that the dependability of desulfuration reaction device 2.
As in figure 2 it is shown, this utility model additionally provides a kind of desulphurization reaction system, including the first pipeline 1 sequentially connected, Desulfuration reaction device 2 and the second pipeline 3, one end away from desulfuration reaction device 2 of the first pipeline 1 is with breather assembly 4 even Logical, one end away from desulfuration reaction device 2 of the second pipeline 3 connects with exhaust gas absorption device 5, and desulfuration reaction device 2 is above-mentioned Desulfuration reaction device.
Alternatively, equipped with acetic acid zinc solution in exhaust gas absorption device 5.
As in figure 2 it is shown, the first pipeline 1 connects with in two through holes 21 of desulfuration reaction device 2, and the first pipe Road 1 also connects with the drainage tube 30 of desulfuration reaction device 2.Second pipeline 3 connects with another in two through holes 21.
As in figure 2 it is shown, be additionally provided with pressure gauge and pressure relief device on the second pipeline 3, alternatively, pressure measxurement dress Being set to Pressure gauge, pressure relief device is the one in stop valve or regulation valve.
Breather assembly 4 includes the first breather 41 and the second breather 42 being arranged in parallel as shown in Figure 2.The One breather 41 is connected by the first valve and the first pipeline 1, and the second breather 42 is by the second valve and the first pipeline 1 Connection.
Alternatively, the one during the first valve and the second valve are stop valve or regulation valve.
Alternatively, one in the first breather 41 and the second breather 42 as hydrogen sulfide gas breather, In first breather 41 and the second breather 42 as nitrogen breather or noble gas breather.
It should be noted that in the desulfurized effect assessment experiment of desulfurizing agent, first, to the cavity 11 of desulfuration reaction device 2 Inside it is added into quantitative desulfurizing agent, in desulfuration reaction device 2, is then passed through the quantitative sulfuration with quantitative reactive desulfurizing agent Hydrogen, afterwards in order to make quantitative hydrogen sulfide gas react with desulfurizing agent in fully entering cavity 11 more anti-to desulfurization Answer in device 2 and be passed through nitrogen, so that nitrogen oppresses the residual hydrogen sulfide gas in the first pipeline 1 and drainage tube 30 continues flowing And fully react with desulfurizing agent in entering cavity 11.Finally, after the reaction in cavity 11 fully, continuing to be passed through nitrogen can also The gas of the not sufficiently reactive gas in cavity 11 and the second pipeline 3 or generation is brought in exhaust gas absorption device 5, waste gas Absorption plant 5 is added with and reacts the chemical agent of variable color with hydrogen sulfide, the most permissible by observing the change of chemical agent color Directly observe the desulfurized effect of desulfurizing agent.
As in figure 2 it is shown, desulphurization reaction system also includes being arranged on the first flow quantifier 6 on the first pipeline 1 and with useless The second flow quantifier 7 of aspiration receiving apparatus 5 connection, first flow quantifier 6 is arranged on breather assembly 4 and desulphurization reaction Between device 2, second flow quantifier 7 is connected with the second pipeline 3 by exhaust gas absorption device 5.In such manner, it is possible to it is effectively measuring Go out to be passed through the intrasystem gas flow of desulphurization reaction, and remaining gas flow after desulfuration reaction device 2 reacts.
The most simply summarize the work process of desulphurization reaction system, with pipet by the desulfurizing agent liquid for preparing from Filling opening adds, and closes evacuation port;Stir 5 minutes;Open hydrogen sulfide gas breather, control flow and added by filling opening, Being passed through hydrogen sulfide gas in desulfurizing agent and abundant reaction 0.5 minute, then open bat and eat dishes without rice or wine, after reaction, gas is expelled to have been loaded with In the exhaust gas absorption device 5 of acetic acid zinc solution, after by quantitative hydrogen sulfide gas, stop ventilation;Close filling opening and put QI KOU;Take off exhaust gas absorption device 5 to detect by standard-required.
As can be seen from the above description, the desulfuration reaction device that this utility model is above-mentioned has the advantage that
Practicality the most handsome in appearance;
2. the stability in use of desulfuration reaction device is good, be easy to fix, good airproof performance, absorb fully to hydrogen sulfide gas, And can effectively mix the chemical agent being added into cavity;
3. easy to operate in experimentation works, safety coefficient is high, improves accuracy of detection and the work of experimental data Efficiency.
It should be noted that term used herein above merely to describe detailed description of the invention, and be not intended to restricted root Illustrative embodiments according to the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative It is also intended to include plural form, additionally, it should be understood that, when using term " to comprise " in this manual and/or " bag Include " time, it indicates existing characteristics, step, work, device, assembly and/or combinations thereof.
It should be noted that term " first " in the description and claims of this application and above-mentioned accompanying drawing, " Two " it is etc. for distinguishing similar object, without being used for describing specific order or precedence.Should be appreciated that so use Data can exchange in the appropriate case, in order to presently filed embodiment described herein can be with except here illustrating Or the order enforcement beyond those described.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for this For the technical staff in field, this utility model can have various modifications and variations.All in spirit of the present utility model and principle Within, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.

Claims (10)

1. a desulfuration reaction device, it is characterised in that including:
Housing (10), described housing (10) has cavity (11), and one end of described cavity (11) has hatch frame;
It is removably disposed in the end cap (20) at described hatch frame, described end cap (20) offers through described end cap (20) two through holes (21);
Drainage tube (30), a described through hole (21) in the first end of described drainage tube (30) and two described through holes (21) is even Connecing, the second end of described drainage tube (30) stretches out in described cavity (11).
Desulfuration reaction device the most according to claim 1, it is characterised in that described through hole (21) includes that be sequentially connected with inclines Tiltedly section (211) and vertical section (212), wherein, described tilting section (211) is by described vertical section (212) and described cavity (11) Connection.
Desulfuration reaction device the most according to claim 2, it is characterised in that the sectional area edge, hole of described tilting section (211) It is gradually reduced near the direction of described vertical section (212).
Desulfuration reaction device the most according to claim 1, it is characterised in that two described through holes (21) are relative to described end The axisymmetrical of lid (20) is arranged.
Desulfuration reaction device the most according to claim 1, it is characterised in that described desulfuration reaction device (2) also includes living The dynamic multiple shackle member (40) being arranged on described end cap (20), multiple described shackle member (40) circumference around described end cap (20) Interval is arranged, and described end cap (20) is by multiple described shackle member (40) and described housing (10) clamping.
Desulfuration reaction device the most according to claim 1, it is characterised in that described desulfuration reaction device (2) also includes suitable The stirring motor (50) of secondary connection, puddler (60) and stirring paddle (70), described stirring motor (50) is positioned at described cavity (11) Outside, one end deviating from described stirring motor (50) of described puddler (60) is along the axis of described end cap (20) through described End cap (20) stretches in described cavity (11).
Desulfuration reaction device the most according to claim 1, it is characterised in that described housing (10) is by stainless steel alloy system Become.
8. a desulphurization reaction system, including the first pipeline (1) sequentially connected, desulfuration reaction device (2) and the second pipeline (3), one end away from described desulfuration reaction device (2) of described first pipeline (1) connects with breather assembly (4), described One end away from described desulfuration reaction device (2) of second pipeline (3) connects with exhaust gas absorption device (5), it is characterised in that institute Stating desulfuration reaction device (2) is the desulfuration reaction device according to any one of claim 1 to 7.
Desulphurization reaction system the most according to claim 8, it is characterised in that described breather assembly (4) includes parallel connection The first breather (41) arranged and the second breather (42).
Desulphurization reaction system the most according to claim 8, it is characterised in that desulphurization reaction system also includes:
Being arranged on the first flow quantifier (6) on described first pipeline (1), described first flow quantifier (6) is arranged on institute State between breather assembly (4) and described desulfuration reaction device (2);
The second flow quantifier (7) connected with described exhaust gas absorption device (5), described second flow quantifier (7) passes through institute State exhaust gas absorption device (5) to connect with described second pipeline (3).
CN201620578350.0U 2016-06-13 2016-06-13 Desulfuration reaction device and desulphurization reaction system Active CN205760494U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620578350.0U CN205760494U (en) 2016-06-13 2016-06-13 Desulfuration reaction device and desulphurization reaction system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620578350.0U CN205760494U (en) 2016-06-13 2016-06-13 Desulfuration reaction device and desulphurization reaction system

Publications (1)

Publication Number Publication Date
CN205760494U true CN205760494U (en) 2016-12-07

Family

ID=58131530

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620578350.0U Active CN205760494U (en) 2016-06-13 2016-06-13 Desulfuration reaction device and desulphurization reaction system

Country Status (1)

Country Link
CN (1) CN205760494U (en)

Similar Documents

Publication Publication Date Title
CN107843692A (en) A kind of Design of Vehicle Tail Gas Analyzer
CN205760494U (en) Desulfuration reaction device and desulphurization reaction system
CN207798632U (en) Hydrogen sulfide corrosion electrochemical testing device
CN208013210U (en) A kind of fracturing fluid and reservoir interact experimental system for simulating
CN205910127U (en) Closed detect reagent box
CN107957480A (en) A kind of experimental rig and method of test oil set annular protective liquid long-term effect
CN205861640U (en) A kind of vehicle-mounted natural gas sulfurated hydrogen detection equipment
CN208358863U (en) A kind of chemical experiment safety device
CN205879599U (en) Liquid chemicals sampling device
CN206958597U (en) A kind of alkene sampling storage device with heating function
CN103852351B (en) A kind of sampler of extracting gases sample in negative-pressure pipeline and sampling method
CN205638448U (en) Block formula high pressure well mouth gas sampling bag
CN203874788U (en) Hydrogen induced cracking test container
CN201592099U (en) Mercury vapor reducing bottle
CN207169754U (en) A kind of fluid collection device
CN208334306U (en) A kind of Portable oil-gas field scene corrosion tester
CN203732328U (en) Sampling device capable of extracting gas sample from negative pressure pipeline
CN107831267A (en) A kind of liquid desulfurizing agent Lab-evaluation device and its evaluation method
CN204807439U (en) Be applicable to and water funkly be afraid of that oxygen compound carries out ultraviolet cell for fluorescence detection
CN104749002B (en) The extraction element of volatile materials in a kind of water body and deposit
CN207703551U (en) A kind of receiving cavate urine specimen collecting bag
CN207623198U (en) A kind of measuring device of air brick Air permenbility
CN207823548U (en) A kind of safe ready vent cabinet
CN206960158U (en) A kind of alkene sampling storage device with function of measuring
CN203132994U (en) Disposable exhalation type rapid alcohol detection device

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant