CN206404459U - Chemical detection system - Google Patents

Abstract

The utility model is related to a kind of chemical detection system, including detector, reagent storage means, liquid suction pipe, waste collecting device and sewer pipe, reagent storage means include bottle, the first lid and control valve, the first noumenon seals the opening for being coupled to bottle, first filter is arranged at the first noumenon, control valve is arranged at the first noumenon, and on the path of the first filter and the open communication of bottle, is opened for compensating during air pressure in bottle；Second lid includes the second body and the second filter, and the second body seals the opening for being coupled to the waste liquid barrel, and the second filter is arranged at second body；Control valve is opened when compensating air pressure in bottle, outside air is entered in bottle, is improved the smoothness of the solvent delivery in bottle.In addition, by the way that the second body sealing of the second lid of waste collecting device is coupled into waste liquid barrel, and the second filter is set on the second body, organic volatilizable pernicious gas in waste liquid barrel is discharged by filtering.

Description

Chemical detection system

Technical field

The utility model is related to equipment of chemical industry technical field, more particularly to a kind of chemical detection system.

Background technology

With the development of constantly bringing forth new ideas of science and technology, the laboratory for chemical technology research and development test is more and more.Generally, Reagent is extracted when carrying out chemical experiment, it is necessary to from reagent bottle to detector, after detection and experiment, and detector is defeated The waste liquid gone out is discharged into waste liquid barrel.And it is current, the method that chemical reagent is added in chemical experiment mainly aspirates examination using liquid suction pipe Agent is added, its in operation, the organic solvent of extraction is typically that concentration is high, the liquid of high volatility.Decimated Cheng Zhong, organic solvent in reagent bottle from volatilizing during pernicious gas is discharged into air, and the physical and mental health to experimenter causes shadow Ring.In addition, in waste liquid barrel, there is also volatilizable organic solvent, being volatilized easily from waste liquid barrel, to the physical and mental health of experimenter Threaten.

To solve the problem, most of chemical laboratory is further equipped with the auxiliary equipments such as air-conditioning or air cleaning facility and comes clear Except indoor harmful gas.But the processing mode of this " first polluting, post-process ", it is impossible to which removing or exclude in time has pernicious gas Air, the still physical and mental health to experimenter has a negative impact.

Utility model content

Based on this, it is necessary to which existing for traditional chemical detection system easily makes organic pernicious gas be discharged into laboratory In room air, influence experimenter physical and mental health the problem of prevent organic volatile material to be discharged into air there is provided one kind Chemical detection system.

A kind of chemical detection system, including：

Detector；

Reagent storage means, including bottle, the first lid and control valve, first lid include the first noumenon and first Filter, the first noumenon sealing is coupled to the opening of the bottle, and first filter is arranged at the first noumenon, Enter the gas of the bottle for filtering, the control valve is arranged at the first noumenon, and positioned at first filter With on the path of the open communication of the bottle, being opened during for compensating air pressure in the bottle；

Liquid suction pipe, one end is connected to the inlet of the detector, and other end sealing is arranged in the first noumenon, and stretches Enter the bottle to aspirate the reagent in the bottle；

Waste collecting device, including waste liquid barrel and the second lid, second lid include the second body and the second filtering Device, the second body sealing is coupled to the opening of the waste liquid barrel, and second filter is arranged at second body, uses The gas discharged in filtering from the waste liquid barrel；

Sewer pipe, one end is connected to the leakage fluid dram of the detector, and other end sealing is coupled to second lid to incite somebody to action Waste liquid is discharged into the waste liquid barrel.

Above-mentioned chemical detection system, by setting control valve, opens when compensating air pressure in bottle, enters outside air In bottle, it is ensured that the stable gas pressure in bottle, the smoothness of the solvent delivery in bottle is improved.And make what is be harmful in bottle 1 Organic substance can not be discharged out of bottle, it is ensured that the physical and mental health of experimenter, by setting the first filter, make air-flow first Filtering is first passed through, then is entered by control valve in bottle, it is to avoid the reagent in bottle is contaminated.In addition, by by waste collection The second body sealing of second lid of device is coupled to waste liquid barrel, and sets the second filter on the second body, makes waste liquid Organic volatilizable pernicious gas in bucket is discharged by filtering, is further ensured the physical and mental health of experimenter, is improved The security and reliability of chemical experiment waste liquid processing.

In a wherein embodiment, first filter includes first connecting portion, is connected to the first connecting portion one First filter house and the first filter membrane at end, the other end sealing of the first connecting portion are coupled to the first noumenon, described First filter house has a cavity, and first filter membrane is arranged at the cavity, and first filter also includes insertion institute First connecting portion and first filter house are stated, the passage for connecting the bottle opening and the cavity, the ventilation One end that hole connects the cavity is provided with the control valve, and the control valve is check valve, for compensating gas in the reagent bottle Opened during pressure.

In a wherein embodiment, the control valve has a flexibility, and including distally, near-end and therebetween extend Inlet channel, the distal end is located at the cavity, described to be proximally located at the passage, and is configured to have the response bottle Internal negative pressure and the gap being turned on and off.

In a wherein embodiment, the near-end of the control valve includes two alar parts extended along passage, described in two Alar part is oppositely arranged, and is configured to normally closed, and forms the gap when responding negative pressure in the reagent bottle.

In a wherein embodiment, first lid also includes the transfusion tube joint for being used to connect the liquid suction pipe, institute State the first noumenon and offer the connecting hole for connecting the bottle opening, the transfusion tube joint is threadedly connected to the connecting hole, It is substantially in coniform contraction front, the connecting hole that the transfusion tube joint circumferentially has positioned at the end of the connecting hole Wall has the mating surface being in contact with the contraction front, and the shape of the shape of the mating surface and the contraction front matches.

In a wherein embodiment, second filter includes second connecting portion, is connected to the second connecting portion one Second filter house at end, the second connecting portion sealing is coupled to second body, and with the opening with the waste liquid barrel The air admission hole of connection, second filter house, which has, is equiped with the accommodating cavity of filter core, and the accommodating cavity includes relative the One openend and the second openend, first openend are connected with the air admission hole.

In a wherein embodiment, second filter also includes filter membrane, and the filter membrane is arranged at described accommodating Second openend of cavity.

In a wherein embodiment, the filter core is activated carbon granule or the sintering carbon matched with the accommodating cavity geometry Rod.

In a wherein embodiment, the radial dimension of the accommodating cavity is from first openend to the described second opening End gradually increases.

In a wherein embodiment, it is characterised in that the chemical detection system also includes liquid level sensor and alarm dress Put, the liquid level sensor is arranged in the waste liquid barrel, and be connected with the warning device, with useless in the waste liquid barrel Liquid sends alarm signal when reaching preset value.

Brief description of the drawings

Fig. 1 be the embodiment of the utility model one in chemical detection system structural representation；

Fig. 2 is the structural representation of the first lid of the reagent storage means of the chemical detection system shown in Fig. 1；

Fig. 3 is the profile of the first lid shown in Fig. 2；

Fig. 4 is the partial enlarged drawing at the A of the first lid shown in Fig. 3；

The structural representation of second lid of the waste collecting device of the chemical detection system shown in Fig. 5 Fig. 1；

Fig. 6 is the partial enlarged drawing at the B of the second lid shown in Fig. 5.

Embodiment

For the ease of understanding the utility model, the utility model is more fully retouched below with reference to relevant drawings State.Preferred embodiment of the present utility model is given in accompanying drawing.But, the utility model can come real in many different forms It is existing, however it is not limited to embodiment described herein.On the contrary, the purpose for providing these embodiments is made to public affairs of the present utility model The understanding for opening content is more thorough comprehensive.

It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element Or can also have element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " level ", " left side ", " right side " and similar statement are for illustrative purposes only.

Unless otherwise defined, all of technologies and scientific terms used here by the article is led with belonging to technology of the present utility model The implication that the technical staff in domain is generally understood that is identical.It is herein to be in term used in the description of the present utility model The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein " and/or " include The arbitrary and all combination of one or more related Listed Items.

As shown in Figure 1, Figure 2 and shown in Fig. 5, the chemical detection system 10 in the embodiment of the utility model one, including detector 12nd, reagent storage means 14, liquid suction pipe 16, waste collecting device 18 and sewer pipe 19.

The reagent storage means 14 include bottle 142, the first lid 144 and control valve 146 (see Fig. 3).First lid 144 include the filter 1444 of the first noumenon 1440 and first, and the first noumenon 1440, which is sealed, is coupled to the opening of bottle 142, and this One filter 1444 is arranged at the first noumenon 1440, for filtering the gas into the bottle 142.The control valve 146 is arranged at The first noumenon 1440, and on the path of the first filter 1444 and the open communication of bottle 142, for compensating the bottle Opened in 142 during air pressure.The one end of liquid suction pipe 16 is connected to the inlet of detector 12, and other end sealing is arranged in the first noumenon 1440, and stretch into bottle 142 to aspirate the reagent in bottle 142.

The waste collecting device 18 includes the lid 184 of waste liquid barrel 182 and second, and second lid 184 includes the second body 1842 and second filter 1844, second body 1842 seals the opening for being coupled to waste liquid barrel 182, second filter 1844 The second body 1842 is arranged at, for filtering the gas discharged from waste liquid barrel 182.The one end of sewer pipe 19 is connected to detector 12 Leakage fluid dram, other end sealing is coupled to second lid 184 waste liquid is discharged into the waste liquid barrel 182.

Wherein, the opening sealing of the first lid 144 and bottle 142 is coupled, then during the suction reagent of liquid suction pipe 16, Negative pressure is produced in bottle 142.By setting control valve 146, opened when compensating air pressure in bottle 142, enter outside air In bottle 142, it is ensured that the stable gas pressure in bottle 142, the smoothness of the solvent delivery in bottle 142 is improved.And make bottle The organic substance being harmful in 142 can not be discharged out of bottle 142, it is ensured that the physical and mental health of experimenter, by setting first Filter 1444, makes air-flow first pass around filtering, then enter by control valve 146 in bottle 142, it is to avoid the examination in bottle 142 Agent is contaminated.

In addition, by the way that the second body 1842 sealing of the second lid 184 of waste collecting device 18 is coupled into waste liquid barrel 182, and second filter 1844 is set on the second body 1842, make organic volatilizable pernicious gas in waste liquid barrel 182 Discharged by filtering, further ensure the physical and mental health of experimenter, improve chemical experiment waste liquid processing security and Reliability.

It is pointed out that during the suction reagent of liquid suction pipe 16, negative pressure being produced in bottle 142, refers to bottle 142 Interior pressure is less than the pressure of the solvent vapor liquid equilibrium in bottle 142, so that the reagent in bottle 142 can not be smooth, even It can not be exported out of bottle 142.And control valve 149 is opened, then the pressure in bottle 142 is compensate for, make reagent smoothly defeated Go out.

In the present embodiment, the chemical detection system 10 includes two detectors 12, and each detector 12 of correspondence is furnished with two Reagent storage means 14, two detectors 12 are discharged into waste liquid barrel 182 by sewer pipe 19, certainly, in some other embodiment In, can determine the quantity of detector 12 according to actual conditions, and reagent storage means 14 quantity, be not limited thereto.

Refer in Fig. 2 and Fig. 3, the present embodiment, the first noumenon 1440, which is sealed, is coupled to the opening of bottle 142, this One filter 1444 includes first connecting portion 1441, is connected to first filter house 1443 and first of the one end of first connecting portion 1441 Filter membrane 1445.The other end sealing of the first connecting portion 1441 is coupled to the first noumenon 1440, and first filter house 1443 has There is a cavity 1446, first filter membrane 1445 is arranged at cavity 1446.First filter 1444 also connects including insertion first The filter house 1443 of socket part 1441 and first, for connect bottle 142 be open and cavity 1446 passage 1448, the passage One end of 1448 connection cavitys 1446 is additionally provided with foregoing control valve 146.First lid 144 also includes being used to connect liquid suction pipe 16 transfusion tube joint 1447, the first noumenon 1440 is further opened with connecting the first connecting hole 1442 that bottle 142 is open, and this is defeated Liquid pipe connection 1447 is threadedly connected to the first connecting hole 1442.In chemical experiment, liquid suction pipe 16 is arranged in transfusion tube joint 1447, and stretch into bottle 142, to aspirate the reagent in bottle 142.

Specific in an embodiment, the control valve 146 includes opening and locking states, when in bottle 142 Air pressure is less than preset pressure value, and control valve 146 is in opening, for compensating the air pressure in bottle 142.When in bottle 142 Air pressure be more than or equal to preset pressure value, control valve 146 be in locking states.That is, during reagent is aspirated Atmospheric pressure value in bottle 142 reaches above-mentioned condition, and control valve 146 is opened；Stop suction reagent, atmospheric pressure value is more than or equal to foregoing Preset pressure value, then the locking of control valve 146.

Wherein, first filter membrane 1445 is arranged at cavity 1446, air-flow is first passed around filtering, then pass through control valve 146 enter in bottle 142, it is to avoid the reagent in bottle 142 is contaminated.Specifically, first filter membrane 1445 is micropore first Filter membrane 1445, for preventing small particle dust, moisture in air from entering in bottle, maintains reagent purity in bottle 142 constant.

Preferably, also referring to Fig. 4, the control valve 146 is fabricated from a flexible material, such as rubber or synthetic elastic material Or it is combined, the control valve 146 includes distal end 1462, near-end 1464 and the inlet channel 1466 extended therebetween, and this is remote End 1462 is located in the cavity 1446 of the first filter house 1443, and the near-end 1464 is located in passage 1448, and is configured to tool There is the gap being turned on and off in response to negative pressure in bottle 142.

In the present embodiment, the near-end 1464 of the control valve 146 includes two alar parts 1468 extended along passage 1448, two Individual alar part 1468 is oppositely arranged, and be configured to it is normally closed, and respond bottle 142 in negative pressure when form the gap.Namely Say, when producing negative pressure in bottle 142, then in the presence of external atmosphere pressure, two alar parts 1468 are strutted, so as to form ventable stream Gap.Specific in an embodiment, the alar part 1468 is in duckbill, i.e., in the laminated structure similar to duckbilled.

Wherein, the distal end 1462 of the control valve 146 is along the edge of passage 1448 towards the axis direction away from passage 1448 Extension, to provide support for control valve 146.That is, the distal end 1462 of control valve 146 forms a flange, make control valve 146 In the axial limiting of passage 1448.It should be appreciated that the radial dimension of the control valve 146 is interior slightly larger than passage 1448 The size in footpath, because control valve 146 is fabricated from a flexible material, then when control valve 146 is installed in passage 1448, its outer wall tight against In the inwall of passage 1448, so as to realize good sealing.

In the present embodiment, the cavity 1446 of first filter house 1443 is in inverted cone shape, and first filter membrane 1445 is covered at The cavity 1446, in this way, making outside air first pass around the first filter membrane 1445, enters back into cavity 1446, then pass through control valve 146 enter in bottle 142.Due in aspiration procedure, negative pressure is produced in bottle 142, then air-flow is poured in cavity 1446, to protect The stable gas pressure in bottle 142 is demonstrate,proved, then the throughput that control valve 146 is allowed access into is difficult excessive.Cavity 1446 is in inverted cone shape, can The air-flow of certain volume is accommodated, cushioning effect can be played, and the air pressure in cavity 1446 is maintained at certain with ambient pressure Difference, it is ensured that the air-flow entered in bottle 142 is at the uniform velocity and flow is controllable.

Further, to ensure that it is excessive that the air-flow into the first filter 1444 is difficult, and larger diameter is prevented or larger The pollutant of particle enters the first filter 1444, the first filter membrane 1445 is played good filtration, first mistake Filter 1444 also includes the first case 1455, and first case 1455 is installed in the first filter house 1443, and positioned at the first filtering The side of film 1445, and offer the first air-vent 1456 for air inlet.Specific in the present embodiment, first case 1455 Center offers first air-vent 1456, certainly, in other embodiments, the quantity of first air-vent 1456, position Put and diameter can be according to actual conditions depending on, be not limited thereto.

In the present embodiment, the first noumenon 1440 includes lid 1450, first block in the first block 1449 and first The first fitting projection 1451 is circumferentially additionally provided with 1449 opening, this on first lid 1450 be provided at circumferentially spaced first along it Annular groove (figure is not marked), first fitting projection 1451 is embedded in the first annular groove, by the first lid 144 and the first block 1449 connect as one.In this way, by the first fitting projection 1451 and the cooperation of first annular groove, the first lid 144 is coupled In the first block 1449.

Wherein, first block 1449 sealing is coupled at the opening of bottle 142, is covered in first block 1449 and first 1450 are respectively provided with elasticity, and the radial dimension of the opening of the bottle 142 is slightly less than the radial dimension of the gabarit of the first block 1449, makes First block 1449 can stablize and the opening for being coupled to bottle 142 with good sealing property.First block 1449 is two ends The shell-like structure of opening, this on first lid 1450 removably, and be hermetically coupled to the upper end open of the first block 1449, The lower ending opening of one block 1449 is located in bottle 142.

Specifically, first lid 144 is formed with first step portion (figure do not mark), the first annular groove be arranged at this first The vertical step surface of stage portion, when the first fitting projection 1451 is embedded in first annular groove, the horizontal stand terrace in first step portion It is connected to the lower surface of the first fitting projection 1451.In this way, volatilization organic gas need to pass through the following table of the first fitting projection 1451 Between face and the horizontal stand terrace in first step portion, between the side wall of the end face of the first fitting projection 1451 and first annular groove, And first fitting projection 1451 upper surface and first annular groove upper wall between discharge.Due to three groups of above-mentioned mating surfaces it Between be fitted close, it is ensured that the sealing in the first block 1449 and first between lid 1450.

Further, to ensure the sealing on first between the block 1449 of lid 1450 and first, first lid 144 is also Including the first sealing ring 1453, this on first lid 1450 be circumferentially with the second annular groove 1454 along it, second annular groove 1454 First annular groove is interval in set, and positioned at the position of the one end for the opening that bottle 142 is stretched into close to the first lid 144.This One sealing ring 1453 is located in second annular groove 1454, and is connected to the side wall of the inner chamber of the first block 1449, so as to enter one Realize sealing in step ground.

It should be appreciated that this on first the block 1449 of lid 1450 and first it is flexible, be that high polymer material is molded into Type, when the first block 1449 is extruded by the inwall of inlet opening, makes the first sealing ring 1453 be closely against the first block 1449 Inner chamber, so as to ensure that good sealing.

It is understood that in the present embodiment, this on first the block 1449 of lid 1450 and first removably seal mating, In some other embodiment, this on first lid 1450 can be also integrally formed with the first block 1449, be not limited thereto.

In the present embodiment, first connecting hole 1442 is opened in lid 1450 on first, this on first lid 1450 be further opened with Through its first mounting hole (not shown), first mounting hole connects bottle 142 with the first connecting hole 1442 and is open, and this One mounting hole is used to be coupled with the first connecting portion 1441 of the first filter 1444, and first connecting hole 1442 is used for and woven hose Joint 1447 is coupled.Specifically, the first connecting portion 1441 is cylindrical, and the radial dimension of first mounting hole, which is more than, to be used to fill If the radial dimension of the connecting hole of transfusion tube joint 1447, and part is provided with internal thread, the first connecting portion 1441 is threadedly coupled In first mounting hole.

Wherein, the part of the first connecting hole 1442 is provided with internal thread, and the transfusion tube joint 1447 is threadedly connected to the first company Connect in hole 1442.The end that the transfusion tube joint 1447 is located at the first connecting hole 1442 circumferentially has substantially in coniform receipts Contracting face, the connecting hole inwall has a mating surface (figure do not mark) being in contact with contraction front, the shape of the mating surface and contraction front Shape matches.In this way, when transfusion tube joint 1447 is tightened in connecting hole, the taper contraction front quilt of transfusion tube joint 1447 Mating surface is tightened up, so that the liquid suction pipe 16 through transfusion tube joint 1447 is fastened, so as to prevent liquid suction pipe 16 and transfusion The junction gas leakage of pipe joint 1447.

It is pointed out that in the present embodiment, the transfusion tube joint 1447 includes one, in some other embodiment, The transfusion tube joint 1447 or multiple, is not limited thereto.

Refer in Fig. 5 and Fig. 6, the present embodiment, second lid 184 includes the second body 1842 and the second filter 1844, second body 1842 seals the opening for being coupled to waste liquid barrel 182.Second filter 1844 includes second connecting portion 1841st, the second filter house 1842 and the second case 1843, the second connecting portion 1841 sealing are coupled to the second body 1842, and tool There is the air admission hole 1845 with the open communication of waste liquid barrel 182, second filter house 1842, which has, is equiped with the accommodating of filter core 1846 Cavity (figure is not marked).The accommodating cavity includes relative the first openend and the second openend, first openend and air admission hole 1845 connections, second case 1843 covers at the second openend, and it is ventilative to offer some second connected with accommodating cavity Hole 1848, the air admission hole 1845, accommodating cavity and the second air-vent 1,848 one gas channel of formation.

Second lid 184 also includes waste liquid conveying tube joint 1847, and the waste liquid conveying tube joint 1847 sealing is coupled to Second body 1842, and with the open communication of waste liquid barrel 182, with the injection experimentses waste liquid into waste liquid barrel 182.In this way, when experiment During or experiment after, the volatilizable organic matter in waste liquid barrel 182 is entered by the air admission hole 1845 of second connecting portion 1841 Second filter house 1842, the filtering through filtration core 1846, and discharged from the second air-vent 1848 of the second case 1843.Due to The filtration of two filter houses 1842, and the gas channel formed by air admission hole 1845, accommodating cavity, the second air-vent 1848 Afterwards, it is volatilizable to have an opportunity to be deposited on substantially in second lid 184, and discharge clean air, it is ensured that experimenter's It is physically and mentally healthy.

It should be appreciated that the steam vent accommodates experimental waste liquid by air admission hole 1845 and accommodating cavity with waste liquid barrel 182 Waste liquid cavity connection, make the waste liquid cavity of waste liquid barrel 182 identical with external pressure, and then experimental waste liquid is conveyed from waste liquid In the input waste liquid cavity of pipe joint 1847.

Preferably, second body 1842 includes lid 1850 in the second block 1849 and second, and the top of waste liquid barrel 182 is opened Provided with inlet opening, second block 1849 sealing is coupled to the sealing of lid 1850 on inlet opening, second and is coupled to the second block 1849, This on second lid 1850 offer the second mounting hole (figure is not marked) through it, the second connecting portion 1841 be threadedly connected to this Two mounting holes.The waste liquid conveying tube joint 1847 sealing is coupled to lid 1850 on second, and connects with the inlet opening of waste liquid barrel 182 It is logical.

In the present embodiment, lid 1850 is respectively provided with elasticity in second block 1849 and second, the radial dimension of the inlet opening It is slightly less than the radial dimension of the gabarit of the second block 1849, the second block 1849 is stablized and the mating with good sealing property In inlet opening.Second block 1849 is the shell-like structure of both ends open, this on second lid 1850 removably, and hermetically match somebody with somebody The upper end open of the second block 1849 is connected to, the lower ending opening of the second block 1849 is located in waste liquid barrel 182.Second block 1849 The periphery of upper end open has circumferentially extended inwardly to form the second fitting projection 1851 towards opening center, the lid 1850 on second The 3rd annular groove (figure is not marked) is correspondingly provided with along its circumference, second fitting projection 1851 is embedded in the 3rd annular groove, will Lid 1850 is connected as one with the second block 1849 on second.

Specifically, this on second lid 1850 be formed with second step portion (figure is not marked), the 3rd annular groove be arranged at this The vertical step surface of two stage portions, when the second fitting projection 1851 is embedded in three annular grooves, the horizontal stand terrace of stage portion is supported It is connected to the lower surface of the second fitting projection 1851.In this way, experimental waste liquid or volatilization organic gas need to pass through the second fitting projection Between 1851 lower surface and the horizontal stand terrace of stage portion, the side wall of the end face of the second fitting projection 1851 and the 3rd annular groove Between, and discharge between the upper surface of the second fitting projection 1851 and the upper wall of the 3rd annular groove.Assemble due to above-mentioned three It is fitted close between conjunction face, it is ensured that the sealing in the second block 1849 and second between lid 1850.

Further, referring to Fig. 6, being to ensure the sealing on second between the block 1849 of lid 1850 and second, this Lid 1850 also includes the second sealing ring 1854 on two, and second lid 184 is circumferentially with fourth annular groove 1853, the 4th along it Annular groove 1853 is interval in the setting of the 3rd annular groove, and positioned at the position of one end that waste liquid barrel 182 is stretched into close to lid 1850 on second Put.Second sealing ring 1854 is located in the fourth annular groove 1853, and is connected to the side wall of the inner chamber of waste liquid barrel 182, so that Further realize sealing.

It should be appreciated that this on second the block 1849 of lid 1850 and second it is flexible, be that high polymer material is molded into Type, when the second block 1849 is extruded by the inwall of inlet opening, makes the second sealing ring 1854 be closely against the second block 1849 Inner chamber, so as to ensure that good sealing.

It is understood that in the present embodiment, this on second the block 1849 of lid 1850 and second removably seal mating, In some other embodiment, this on second lid 1850 can be also integrally formed with the second block 1849, be not limited thereto.

In the present embodiment, this on second lid 1850 be further opened with the second connection for installing waste liquid conveying tube joint 1847 Hole 1857, second connecting hole 1857 connects the inner chamber of waste liquid barrel 182, and part is provided with internal thread, the waste liquid conveying tube joint 1847 are threadedly connected in second connecting hole 1857.Specifically, the waste liquid conveying tube joint 1847 includes two kinds, is to connect respectively Connect the waste liquid delivery pipe that external diameter is 2.8~3.2 millimeters, and the waste liquid delivery pipe that connecting external diameter is 6.4~9 millimeters, two kinds of waste liquids The quantity of conveying tube joint 1847 is 1~3.Certainly, in some other embodiment, the waste liquid conveying tube joint 1847 Type may also include a variety of, depending on quantity also can be according to actual conditions, be not limited thereto.

In the present embodiment, the second connecting portion 1841 is cylindrical, and the center of the lid 1850 on second, which is offered, to be run through The second mounting hole (figure is not marked) of second lid 184, the radial dimension of second mounting hole, which is more than, to be used to install waste liquid delivery pipe Second connecting hole 1857 of joint 1847, and part is provided with internal thread, the second connecting portion 1841 is threadedly connected to second company Connect hole 1857.Further, second lid 184 also includes the 3rd sealing ring 1855, and the second connecting portion 1841 is along its circumference Provided with the 5th annular groove (figure is not marked), the 3rd sealing ring 1855 is embedded in the 5th annular groove, and is connected to the second mounting hole It is not provided with the inwall of internal thread, so as to play sealing function.

Wherein, the radial dimension of the accommodating cavity gradually increases from the first openend to the second openend.In the present embodiment, The accommodating cavity is substantially in inverted cone shape, in this way, air-flow enters after accommodating cavity from air admission hole 1845, can flowing through without dead angle, make Air-flow is fully contacted with filter core 1846, plays a part of filtering.Specifically, the filter core 1846 is activated carbon granule, and it is filled in In in the accommodating cavity body of inverted cone shape, certainly, in some other embodiment, the filter core 1846 is alternatively sintering carbon-point, herein not It is construed as limiting, but the shape of the sintering carbon-point need to be matched with accommodating cavity body phase, so that air-flow is fully contacted with filter core 1846.

It should be appreciated that the accommodating cavity substantially refers in inverted cone shape, the second openend of accommodating cavity is extremely opened than first Guan Duan opening is big, and excessively makes filter core 1846 in the gentle of open state from the first openend to the second openend, i.e., active Charcoal is particles filled full, and air-flow enters after accommodating cavity from air admission hole 1845, can gradually fill appearance along the unlimited direction of accommodating cavity Cavity, no dead angle are put, and fully can be contacted with filter core 1846.

Preferably, second filter 1844 also includes the second filter membrane 1856, and second filter membrane 1856 is arranged at appearance Put the second openend of cavity.In the present embodiment, second filter membrane 1856 is feltwork filter membrane, and it covers at accommodating cavity Second openend of body, not only acting as prevents from overflowing from accommodating cavity as the activated carbon granule of filter core 1846, and plays secondary The effect of filtering, further avoids organic substance and volatilizees away.Second case 1843 is arranged in the second filter house 1842 Top, has been evenly distributed some second air-vents 1848, has made the gas in waste liquid barrel 182 is volatilizable to go out.

In the present embodiment, the chemical detection system 10 also includes liquid level sensor and warning device (not shown), the liquid level Sensor is arranged in waste liquid barrel 182, and is connected with warning device, is sent out when reaching preset value with the waste liquid in waste liquid barrel 182 Go out alarm signal.Specifically, the warning device can be acoustic-optic alarm.

Above-mentioned chemical detection system 10, the opening sealing of the first lid 144 and bottle 142 is coupled, then is taken out in liquid suction pipe 16 During inhaling reagent, negative pressure is produced in bottle 142.By setting control valve 146, opened when compensating air pressure in bottle 142, Outside air is entered in bottle 142, it is ensured that the stable gas pressure in bottle 142, improve the suitable of solvent delivery in bottle 142 Smooth property.And the organic substance being harmful in bottle 142 can not be discharged out of bottle 142, it is ensured that the physical and mental health of experimenter, By setting the first filter 1444, air-flow is set to first pass around filtering, then enter by control valve 146 in bottle 142, it is to avoid bottle Reagent in body 142 is contaminated.

In addition, by the way that the sealing of the second body 1842 is coupled into waste liquid barrel 182, and set second on the second body 1842 Filter 1844, makes organic volatilizable pernicious gas in waste liquid barrel 182 be discharged by filtering, further ensures experiment people The physical and mental health of member, improves the security and reliability of chemical experiment waste liquid processing.

Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, the scope of this specification record is all considered to be.

Embodiment described above only expresses several embodiments of the present utility model, and it describes more specific and detailed, But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that for the common skill of this area For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to Protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.

Claims (10)

1. a kind of chemical detection system, it is characterised in that including：

Detector；

Reagent storage means, including bottle, the first lid and control valve, first lid include the first noumenon and the first filtering Device, the first noumenon sealing is coupled to the opening of the bottle, and first filter is arranged at the first noumenon, is used for Filtering enters the gas of the bottle, and the control valve is arranged at the first noumenon, and positioned at first filter and institute On the path for the open communication for stating bottle, opened during for compensating air pressure in the bottle；

Liquid suction pipe, one end is connected to the inlet of the detector, and other end sealing is arranged in the first noumenon, and stretches into institute Bottle is stated to aspirate the reagent in the bottle；

Waste collecting device, including waste liquid barrel and the second lid, second lid include the second body and the second filter, institute The opening that the sealing of the second body is coupled to the waste liquid barrel is stated, second filter is arranged at second body, was used for Filter the gas discharged from the waste liquid barrel；

Sewer pipe, one end is connected to the leakage fluid dram of the detector, and other end sealing is coupled to second lid with by waste liquid It is discharged into the waste liquid barrel.

2. chemical detection system according to claim 1, it is characterised in that first filter includes the first connection Portion, the first filter house and the first filter membrane for being connected to described first connecting portion one end, the other end of the first connecting portion are close Envelope is coupled to the first noumenon, and first filter house has a cavity, and first filter membrane is arranged at the cavity, institute Stating the first filter also includes first connecting portion described in insertion and first filter house, for connecting the bottle opening and institute The passage of cavity is stated, one end that the passage connects the cavity is provided with the control valve, and the control valve is check valve, Opened during for compensating air pressure in the reagent bottle.

3. chemical detection system according to claim 2, it is characterised in that the control valve has flexibility, and including remote End, near-end and the inlet channel extended therebetween, the distal end are located at the cavity, described to be proximally located at the ventilation Hole, and be configured to the gap for responding negative pressure in the bottle and being turned on and off.

4. chemical detection system according to claim 3, it is characterised in that the near-end of the control valve includes two along logical The alar part of stomata extension, two alar parts are oppositely arranged, and be configured to it is normally closed, and when responding negative pressure in the reagent bottle Form the gap.

5. chemical detection system according to claim 1, it is characterised in that first lid also includes being used to connect institute The transfusion tube joint of liquid suction pipe is stated, the first noumenon offers the connecting hole for connecting the bottle opening, and the woven hose connects Head thread is connected to the connecting hole, and the end that the transfusion tube joint is located at the connecting hole circumferentially has substantially in circular cone The contraction front of shape, the connecting hole inwall has the mating surface being in contact with the contraction front, the shape of the mating surface and institute The shape for stating contraction front matches.

6. chemical detection system according to claim 1, it is characterised in that second filter includes the second connection Portion, the second filter house for being connected to described second connecting portion one end, the second connecting portion sealing are coupled to second body, And with the air admission hole with the open communication of the waste liquid barrel, second filter house has the accommodating cavity for being equiped with filter core, The accommodating cavity includes relative the first openend and the second openend, and first openend is connected with the air admission hole.

7. chemical detection system according to claim 6, it is characterised in that second filter also includes filter membrane, The filter membrane is arranged at second openend of the accommodating cavity.

8. chemical detection system according to claim 6, it is characterised in that the filter core be activated carbon granule or with it is described The sintering carbon-point that accommodating cavity geometry matches.

9. chemical detection system according to claim 6, it is characterised in that the radial dimension of the accommodating cavity is described in First openend to second openend gradually increases.

10. the chemical detection system according to claim 1~9 any one, it is characterised in that the chemical detection system Also include liquid level sensor and warning device, the liquid level sensor is arranged in the waste liquid barrel, and with the warning device Connection, alarm signal is sent when reaching preset value with the waste liquid in the waste liquid barrel.