CN113984691B - Waste gas and waste liquid centralized collection and discharge module for gas-phase molecular absorption spectrometer - Google Patents
Waste gas and waste liquid centralized collection and discharge module for gas-phase molecular absorption spectrometer Download PDFInfo
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Abstract
The utility model provides a waste liquid and waste gas centralizing and discharging module for gas phase molecular absorption spectrum detection, the surface of the module is provided with a plurality of waste liquid inlets, a plurality of waste gas inlets, a waste liquid outlet and a waste gas outlet, the inside of the module is provided with a plurality of waste liquid passages or waste gas passages, two ends of the module are respectively communicated with the waste liquid inlet or the waste gas inlet, the waste liquid outlet or the waste gas outlet on the surface of the module, and all the waste liquid and waste gas inlets are communicated with the communicated waste liquid and waste gas outlet through internal communicating pipelines. According to the utility model, all waste liquid is concentrated in the module and is discharged from one outlet, so that the operation is convenient, and the consumption of materials is reduced. Meanwhile, when the device is arranged outside, the device is convenient for monitoring the abnormal conditions of waste liquid and waste gas at any time, and improves the safety of the test; the device is arranged inside the instrument, avoids the defects of difficult maintenance and maintenance, can increase or reduce the input holes of waste liquid and waste gas at any time according to the detection needs of different spectrometers, and has good applicability.
Description
Technical Field
The utility model provides a waste gas and waste liquid centralized treatment module or device for a gas-phase molecular absorption spectrometer, in particular to a module or device for centralized collection and discharge of waste gas and waste liquid generated in measurement, and belongs to the field of analysis instruments.
Background
Gas Phase Molecular Absorption Spectroscopy (GPMAS) allows simultaneous qualitative analysis depending on the absorption wavelength. This method was first proposed by Gress et al in 1976 and applied. Syty first uses this method to determine SO 2 And a blowing reaction device is designed. The method is mainly applied to the measurement of the gas content in the early stage. The research of the method in China is started later, and the analysis means is researched from the 80 s. For determination of Cl as Zhang Hanji, etc - The method comprises the steps of carrying out a first treatment on the surface of the The safety of the environmental monitoring station of Shanghai Bao Steel group has conducted intensive research on Gas Phase Molecular Absorption Spectrometry (GPMAS), and he research and development has developed that NO in water sample can be rapidly removed 2 -decomposition into NO 2 Gas and NO 3 Reduction and decomposition to NO gasAccording to the method, the content of the nitrate nitrogen and the ammonia nitrogen in the water sample is quantitatively measured through the atomic absorption spectrophotometer after the water sample passes through the gas phase molecular absorption device, and the method has the advantages of low detection limit, quick analysis and the like, so that the practicability of the Gas Phase Molecular Absorption Spectroscopy (GPMAS) in water quality environment monitoring is greatly improved.
At present, a first generation gas-phase molecular absorption spectrometer (such as a GMA2000 type spectrometer) developed based on a GPMAS method is adopted, wherein a light source adopts a hollow cathode lamp with a sharp line light source, a reagent is added into a solution sample in reaction gas, gas separated rapidly by a catalyst is pumped into an absorption tank (such as a double-horn quartz tube) by an air pump, gas molecules absorb light of the hollow cathode lamp and enter a monochromator, an absorption band of a selected sample falls into a detector of a photomultiplier tube, after passing through a processing system, the content of the sample to be detected is measured by a control system, and numerical values are displayed and printed by a reading system, so that signal processing of a multistage analog circuit is omitted, noise caused by the analog circuit is reduced, signals are processed by a digital circuit, and instrument noise is greatly reduced.
On the basis of the first generation gas phase molecular absorption spectrometer, the second generation gas phase molecular absorption spectrometer automatically improves the original part of manual operation, improves the detection precision and reduces the introduction of the operation error of an experimenter. The third-generation product realizes full automation of the detection process, the pretreated sample can be directly subjected to automatic test, the integration of operations such as pretreatment and the like is realized, the digestion pretreatment operation which is originally required to use high temperature and high pressure is completed by using an online digestion instrument, dangerous high-pressure operation is avoided, the test flow of the sample is shortened by one hour, and the efficiency of sample detection is greatly improved.
In the detection process, the redundant gas to be detected and the impurity gas generated in the reaction are generally discharged through a separate waste gas collecting and treating pipeline. At the same time, the liquid remaining during the reaction, as well as the rinsing and cleaning of the pipes, also produces waste liquid and is therefore also discharged through a separate waste liquid collecting tank row.
For example, chinese patent application 2012101795948, "a syringe pump sample injection gas-phase molecular absorption spectrometer" discloses a gas-phase molecular absorption spectrometer comprising a waste liquid collecting device, wherein the waste liquid collecting device comprises a peristaltic pump, and the lower part of the reaction chamber 502 of the gas-liquid separating device is communicated with the outside through the peristaltic pump, so as to discharge the reacted waste liquid out of the gas-liquid separating device. The bottom of the reaction chamber of the gas-liquid separation device 2 is connected with one end of a peristaltic pump 501 of the waste liquid collecting device, the peristaltic pump 501 sucks the liquid at the bottom and discharges the liquid outside the apparatus, preferably, the other end of the peristaltic pump 501 can be connected with a waste liquid collecting tank 502, and the residual liquid at the bottom of the reaction chamber is sucked by the peristaltic pump 501 and is collected in the waste liquid collecting tank 502. The peristaltic pump 501 can fully discharge the residual liquid after reaction out of the reaction cavity of the gas-liquid separation device 2, the connection part between the residual liquid and the bottom of the reaction cavity has good air tightness, frequent opening is not needed, and the liquid leakage phenomenon at the bottom of the reaction cavity is effectively avoided. However, the utility model does not disclose an exhaust gas collecting device.
The inventor's prior Chinese patent 2014202970671, "gas-phase molecular absorption spectrometer with autosampler" and Chinese patent 2014202970578, "autosampler gas-phase molecular absorption spectrometer" all disclose gas-phase molecular absorption spectrometers comprising independent waste gas collection pipes and waste liquid tanks, wherein the reactor 40 is connected with a waste liquid tank 401, and the waste liquid tank 401 is used for collecting waste liquid generated in the reactor 40; an exhaust gas absorbing pipe 501 is arranged above the light absorbing pipe 50 for collecting toxic gases released in the light absorbing pipe. However, the waste gas absorption pipe and the waste liquid pool in the device are respectively discharged through different channels, and waste liquid generated by pipeline cleaning is not involved, so that convenience is not provided during assembly operation, and consumable materials are wasted.
As the closest prior art, chinese patent application 2021104965600, "a gas-liquid separation apparatus and a gas-liquid separation method for a gas-phase molecular absorption spectrometer" discloses a gas-liquid separation apparatus including a gas-liquid separation unit that performs a gas-liquid separation function, and a liquid separation unit that performs a liquid separation and discharge function. Wherein, the upper part of the separating tube of the main body part is provided with a gas outlet 2, and the separated gas enters the subsequent equipment from the gas outlet 2, such as: a cuvette, etc.; the side of the separator tube has a fluid inlet 1, the fluid inlet 1 being connected to an input power device, such as: a pump and a carrier gas delivery device, thereby realizing the input of fluid substances such as mixed liquid or carrier gas into the separation tube; the main structure of the separation tube, i.e. the tube body from which the fluid inlet 1 extends towards the gas outlet 2, has a condensation function. The lower part of the separation pipe is provided with a liquid outlet which is connected with a passage, and the tail end of the passage, namely the communication port 5, is positioned in the liquid separation unit; the communication port 5 is attached to the bottom surface of the liquid separation unit as much as possible, so that the separated liquid can be introduced into the liquid separation unit as much as possible; the liquid separation unit is provided with an atmosphere connection control port 3, the atmosphere connection control port 3 is provided with a valve, and the opening and the closing of the valve are controlled to realize that the internal environment of the whole separation system is communicated with the atmosphere or not. Wherein the liquid separation unit is also provided with a waste liquid output port 4; through the waste liquid outlet 4, a fluid pipeline leading into a liquid separation unit is arranged inside; the outlet of the fluid pipeline in the liquid separation unit is attached to the bottom surface of the liquid separation unit as much as possible, so that the liquid can be guided out as much as possible; the other end of the fluid pipeline penetrates through the liquid separation unit through the waste liquid output port 4, and a liquid pump is connected to the tail end of the fluid pipeline, so that waste liquid in the liquid separation unit can be continuously guided out through the liquid pump. Although the device embodies the concept of carrying out centralized treatment and separation on the waste liquid and the gas to be measured to a certain extent, the device is only used for separating the gas in the fluid to be measured from the waste liquid, and does not relate to centralized treatment of redundant gas to be measured and impurity gas in a reaction tank, and meanwhile, cannot centralized treat the cleaning waste liquid generated after the pipeline cleaning, so that the requirement of centralized treatment on the waste gas and the waste liquid cannot be met.
Therefore, in the prior art, the liquid path module and the gas path module are respectively connected with the waste liquid and waste gas emission, collection and treatment system, and the waste liquid and the waste gas generated in the detection process are respectively sent into the waste liquid tank and the treatment system of the waste gas emission pipeline, so that environmental pollution is avoided. However, the main reagents used in the measurement process include hydrochloric acid, ethanol, potassium bromide-potassium bromate, sodium hydroxide, potassium persulfate, titanium trichloride and other reagents, and the cleaning process requires a cleaning solution such as low-concentration hydrogen peroxide. Therefore, waste liquid generated by different devices, such as waste liquid generated by devices of a sample injector, a digestion device or a digestion tank, a reaction tank, a host machine and the like, is required to be discharged through a plurality of waste liquid channels, and the residual gas and impurity gas before and after the gas to be measured enters the reaction tank are also required to be discharged through a plurality of waste gas channels.
Thus, there is a need for a module or device that simultaneously collects and processes waste streams and gases generated during vapor phase molecular absorption spectroscopy.
Disclosure of Invention
The first principle of the utility model is that: the waste liquid and the waste gas generated in the gas phase molecular absorption spectrum detection process are conveyed into the same module in a concentrated manner through different pipelines, and the module can be connected with a downstream treatment and discharge device, so that the convenience of installation is improved, the concentrated treatment of the waste liquid and the waste gas is facilitated, and the pollution of the waste liquid and the waste gas to the environment is reduced.
The second principle of the utility model is that: according to the quantity of liquid and gas transfer pipelines in the spectrometer, a plurality of waste liquid and waste gas inlets can be formed in the module, but only one waste liquid and waste gas outlet is formed in the module, so that the module can be matched with spectrometers of different specifications by flexibly opening the inlets according to the structural complexity of the pipelines in the spectrometer.
It is therefore an object of the present utility model to provide a module for concentration and discharge of waste liquid and waste gas for gas phase molecular absorption spectroscopy, the surface of which is provided with a plurality of waste liquid inlets and a plurality of waste gas inlets, and a waste liquid outlet and a waste gas outlet, wherein:
(1) The inside of the module is provided with a plurality of waste liquid passages, one end of each waste liquid passage is respectively communicated with a plurality of waste liquid inlets on the surface of the module, the other end of each waste liquid passage is only communicated with one waste liquid outlet, all the waste liquid inlets are communicated with the communicated waste liquid outlets through internal communication pipelines, and the waste liquid inlets are positioned above or at the same horizontal line of the waste liquid outlets;
(2) The inside of the module is provided with a plurality of waste gas passages, one end of each waste gas passage is communicated with a plurality of waste gas inlets on the surface of the module, the other end of each waste gas passage is communicated with one waste gas outlet, all the waste gas inlets are communicated with the communicated waste gas outlets through internal communication pipelines, and the waste gas inlets are positioned below or at the same horizontal line of the waste gas outlets;
(3) The waste gas passage and the waste gas inlet and outlet in the module are arranged below the horizontal lines of the waste liquid passage and the waste liquid inlet and outlet, and the waste gas passage and the waste liquid passage are not communicated; and/or the number of the groups of groups,
(4) The waste liquid and waste gas outlets can be respectively communicated with the peristaltic pump and the carrier gas device through the two-way pipe, so that the waste liquid and the waste gas can be smoothly conveyed to a downstream processor for treatment and discharge.
In one embodiment, the module is made of polytetrafluoroethylene resistant to waste liquid and exhaust gas corrosion and resistant to self aging, and each of the ports is provided with a polytetrafluoroethylene nut for securing the port to an external connection conduit. In one embodiment, the nut is connected to the fixed access port and the external connection pipe through a linking pagoda or a pre-tightening back taper joint.
In one embodiment, the waste inlet is 3-5, preferably 4, inlets, wherein at least one inlet is level with the waste outlet.
In another embodiment, the exhaust gas inlet is 2-3, preferably 2 inlets, wherein at most one inlet is level with the exhaust gas outlet.
In any of the above embodiments, the module is in the shape of a cuboid or cube, and a small cuboid or cube is cut longitudinally along the width at the lower corners, and the whole takes the shape of an L.
In a specific embodiment, the cuboid is 9cm in length, 3cm in width and 7cm in height, and the small cuboid cut out is 4cm in length, 3cm in width and 5cm in height.
In the specific embodiment, the upper surface of the cuboid is provided with 3 waste liquid inlets, the upper part of the left end face is provided with 1 waste liquid inlet, the right end face corresponding to the horizontal line is provided with 1 waste liquid outlet, and the 4 waste liquid inlets are communicated with the waste liquid outlet.
In the above specific embodiment, the lower surface of the cuboid is provided with 1 waste gas inlet, the left end face of the cut-off small cuboid is provided with 1 waste gas inlet, the right end face corresponding to the horizontal line is provided with 1 waste gas outlet, and 2 waste liquid inlets are all communicated with the waste gas outlet. This shape is effective in saving material and space.
In any of the above embodiments, the waste inlet is connected to an upstream injector waste output pathway, a digester waste output pathway, a host waste output pathway, and a purge pathway thereof.
In any of the above embodiments, the exhaust gas inlet is connected to an upstream reaction chamber or reaction tank exhaust gas output passage, an absorption tank or absorption chamber exhaust gas output passage, and a purge passage thereof.
In any of the above embodiments, the number of inlets may be increased or decreased as desired, or the excess inlets may be directly closed with a closure head.
Technical effects
1. According to the utility model, all waste liquid is concentrated in the module and is discharged from one outlet, so that the operation is convenient, and the consumption of materials is reduced.
2. The module can also collect waste gas intensively, and the integration effect of waste liquid and waste gas is reflected.
3. The module of the utility model can be arranged inside and outside the spectrometer, especially when the module is arranged outside, the abnormal condition of waste liquid and waste gas can be conveniently monitored at any time, and the safety of the test is improved.
4. The module is arranged in the instrument, so that the defects of difficult maintenance and difficult maintenance are avoided, meanwhile, the input holes for waste liquid and waste gas can be increased or reduced at any time according to the detection needs of different spectrometers, and the device has good applicability.
5. Compared with spheres, ellipsoids, cones and various irregular solids, the shape of the module has the advantages of easy processing and production, space saving and material saving.
6. The module of the utility model has smooth surface, is easy to be closely attached to the inner surface and the outer surface of the spectrometer, and has the advantages of small and compact structure, no occupation of the space of the spectrometer, and the like.
7. The module provided by the utility model has no liquid leakage corrosion phenomenon in three months, and the waste liquid is convenient to collect.
Drawings
Fig. 1 is a schematic structural view of a centralized collection and discharge module according to the present embodiment.
FIG. 2 is a diagram of the product of the present utility model.
Detailed description of the preferred embodiments
The embodiment provides a waste gas and waste liquid centralized collection and discharge module for a gas phase molecular absorption spectrometer, as shown in fig. 1, the module adopts polytetrafluoroethylene as a raw material, and can effectively prevent waste liquid corrosion and ageing of the material.
The module adopts polytetrafluoroethylene cuboids with the length, width and height of 9cm,3cm and 7cm respectively, small cuboids with the length, width and height of 4cm, 3cm and 3cm are cut off from one corner of the lower end, and the whole module is in a L shape which is horizontally placed.
Punching holes A4 and A5 on the side surfaces of two ends of the module and punching a plurality of holes A1, A2 and A3 on the upper side surface of the module respectively, so that one end of the module is communicated with a plurality of waste liquid inlets A1, A2, A3 and A4 on the surface of the module respectively, the other end of the module is communicated with only one waste liquid outlet A5, and all the waste liquid inlets are communicated with the communicated waste liquid outlets through internal communication pipelines; and the waste liquid inlets A1, A2, A3 and A4 are positioned above or at the same level of the waste liquid outlet A5;
punching cards A6 and A7 on the side surfaces of two ends of the cut small cuboid of the module respectively, and punching a hole A8 on the lower side surface, so that one end of the card is communicated with a plurality of waste gas inlets A7-A8 on the surface of the module, the other end of the card is communicated with a waste gas outlet A6, and all waste gas inlets are communicated with the communicated waste gas outlets through internal communication pipelines; and the exhaust gas inlets A7-A8 are below or at the same level as the exhaust gas outlet A6; and, the waste gas passage and the waste gas inlet and outlet are arranged below the horizontal lines of the waste liquid passage and the waste liquid inlet and outlet.
The polytetrafluoroethylene screw cap is embedded in the hole site, and the screw cap can be connected with the pagoda or the pretightening force back taper joint according to specific requirements, and then is connected with the corresponding waste liquid inlet and outlet pipe, and the waste gas inlet and outlet pipe.
The preferred dimensions of the module are as follows:
upper surface length=9 cm, width=3 cm, height=7 cm.
The remaining height of the lower end cut off a corner=4 cm, and the remaining length=4 cm.
The remaining length of the lower surface was =5 cm, the width still being 3cm.
Wherein the number of waste liquid inlets is 3-5, preferably 4, at least one of which is positioned on the same horizontal line as the waste liquid outlet; the number of the exhaust gas inlets is 2-3, preferably 2, wherein at most one inlet and the exhaust gas outlet are positioned on the same horizontal line; and
the upper surface of the cuboid is provided with 3 waste liquid inlets, the upper part of the left end face is provided with 1 waste liquid inlet, the right end face corresponding to the horizontal line is provided with 1 waste liquid outlet, and the 4 waste liquid inlets are communicated with the waste liquid outlet; the method comprises the steps of,
the lower surface of this cuboid is equipped with 1 waste gas entry, is equipped with 1 waste gas entry by the left end face after the excision little cuboid, and the right-hand member face department that the horizontal line corresponds is equipped with 1 waste gas export, and 2 waste liquid inlets all communicate with each other with the waste gas export.
In addition, the waste inlet is connected to an upstream injector waste output pathway, a digester waste output pathway, a host waste output pathway, and a purge pathway thereof, not shown in fig. 1.
Furthermore, the exhaust gas inlet is connected to an upstream reaction chamber or reaction tank exhaust gas output passage, an absorption tank or absorption chamber exhaust gas output passage, and a purge passage thereof (not shown in fig. 1-2); the method comprises the steps of,
the waste and waste outlets may be in communication with peristaltic pumps via two-way tubes, respectively, so that the waste and waste may be smoothly delivered to a downstream processor for treatment and discharge (not shown in fig. 1-2).
In addition, the number of inlets is increased or decreased as required, or the redundant inlets are directly sealed by using the sealing head.
The specific working mode is shown in fig. 2:
the waste liquid module is provided with 8 hole sites, two of which are connected by a pretightening force back taper, and six of which are connected by a pagoda.
For the concentrated collection process of the waste liquid, A1, A2, A3 and A4 are respectively communicated with an upstream sampler waste liquid output passage, a digestion device waste liquid output passage, a host waste liquid output passage and a cleaned waste liquid output passage. For example, injector waste output port-A1, digester waste output port-A2, host waste output port-A3, post-wash waste-A4, and so forth.
In the working process, the connecting pagoda or the inverted cone joint is opened or unscrewed, so that the waste liquid is continuously gathered in the upper waste liquid passage of the module and is continuously discharged through the A5 waste liquid outlet.
The peristaltic pump at the downstream of the A5 waste liquid outlet can be started according to the reaction progress, so that the waste liquid discharge is accelerated.
In the use process, one or more waste liquid inlets in A1-A4 can be selected to be closed according to different application scenes of the spectrometer so as to prevent waste liquid from flowing back to an upstream passage from the inlets, and interference detection can be avoided.
For the concentrated collection process of the waste gas, A7-A8 are respectively connected with an upstream waste gas output passage, an absorption tank or an absorption cavity of the reaction cavity or the reaction tank and a waste gas output passage.
During operation, the connection pagoda or inverted cone joint is opened or unscrewed so that exhaust gas is continuously collected in the lower exhaust gas passage of the module and is continuously discharged through the A6 exhaust gas outlet.
The peristaltic pump and/or carrier gas device at the downstream of the A6 waste gas outlet can be started according to the reaction progress to accelerate the exhaust of waste gas.
In the use process, one or more waste gas inlets in A7-A8 can be selected to be closed according to different application scenes of the spectrometer so as to prevent waste liquid from flowing back to an upstream passage from the inlets, and interference detection can be avoided.
In addition, the number of waste liquid and waste gas inlets can be increased or reduced according to detection requirements, or redundant inlets can be directly sealed by using a seal head.
The physical product of the utility model has no liquid leakage corrosion phenomenon in three months, and the waste liquid is convenient to collect.
Claims (8)
1. A module for concentration and discharge of waste liquid and waste gas for gas phase molecular absorption spectroscopy, the surface of which is provided with a plurality of waste liquid inlets and a plurality of waste gas inlets, and a waste liquid outlet and a waste gas outlet, wherein:
(1) The module is in a cuboid or cube shape, a small cuboid or cube is longitudinally cut off along the width at the lower corner, and the whole module is in a 'shape';
(2) The upper surface of the module is provided with a plurality of waste liquid inlets, one end of the side surface of the module is provided with a waste liquid inlet, the opposite side surface end of the inlet is provided with a waste liquid outlet, all the waste liquid inlets are communicated with the communicated waste liquid outlet through an internal communicating pipeline, and the waste liquid inlets are positioned above or on the same horizontal line of the waste liquid outlet;
(3) The lower surface of the module is provided with a plurality of waste gas inlets, the side surface of which is cut off a small cuboid or cube is also provided with a waste gas inlet, the opposite side surface end of the inlet is provided with a waste gas outlet, all the waste gas inlets are communicated with the communicated waste gas outlet through an internal communicating pipeline, and the waste gas inlets are positioned below or at the same horizontal line of the waste gas outlet;
(4) The waste gas passage and the waste gas inlet and outlet in the module are arranged below the horizontal lines of the waste liquid passage and the waste liquid inlet and outlet, and the waste gas passage and the waste liquid passage are not communicated; and/or the number of the groups of groups,
(5) The waste liquid and waste gas outlets can be respectively communicated with the peristaltic pump and the carrier gas device through the two-way pipe so that the waste liquid and the waste gas can be smoothly conveyed to a downstream processor for treatment and discharge, and,
(6) The length of the cuboid is 9cm, the width is 3cm, the height is 7cm, and the length of the small cuboid which is cut off is 4cm, the width is 3cm, and the height is 5cm.
2. The module of claim 1, wherein the module is made of polytetrafluoroethylene resistant to waste liquid, exhaust gas corrosion and aging, and each port is provided with a polytetrafluoroethylene nut which secures the port by connecting a pagoda or a pretensioned back taper joint, and secures an external connecting pipe.
3. The module of claim 1 or 2, wherein the waste inlets are 3-5, wherein at least one waste inlet is located at the same level as a waste outlet; and/or the number of the exhaust gas inlets is 2-3, wherein at most one exhaust gas inlet and the exhaust gas outlet are positioned on the same horizontal line.
4. A module according to claim 3, wherein the upper surface of the rectangular parallelepiped is provided with 3 waste liquid inlets, one end of the side face of the module is provided with 1 waste liquid inlet, the opposite end face of the horizontal line is provided with 1 waste liquid outlet, and 4 waste liquid inlets are communicated with the waste liquid outlet.
5. A module according to claim 3, wherein the lower surface of the rectangular parallelepiped is provided with 1 exhaust gas inlet, the side face of the rectangular parallelepiped from which the small rectangular parallelepiped is cut is provided with 1 exhaust gas inlet, the horizontal line facing end face is provided with 1 exhaust gas outlet, and each of the 2 exhaust gas inlets is communicated with the exhaust gas outlet.
6. The module of claim 4 or 5, wherein the waste inlet is connected to an upstream injector waste output pathway, a digester waste output pathway, a host waste output pathway, and a purge pathway thereof.
7. The module of claim 4 or 5, wherein the exhaust gas inlet is connected to an upstream reaction chamber or reaction tank exhaust gas output passage, an absorption tank or absorption chamber exhaust gas output passage and a purge passage thereof.
8. The module of claim 7, wherein the number of inlets can be increased or decreased as needed, or the excess inlets can be directly closed using a closure head.
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| CN101551323B (en) * | 2009-04-17 | 2011-12-21 | 陈凡 | Gas phase molecular absorption spectrometer |
| CN201823404U (en) * | 2010-10-12 | 2011-05-11 | 北京京东方光电科技有限公司 | Gas-liquid separator |
| JP2014151221A (en) * | 2013-02-04 | 2014-08-25 | Matsumura Akiko | Gas-liquid mixing system |
| CN204723988U (en) * | 2015-04-23 | 2015-10-28 | 夏守云 | The waste gas and waste liquid gathering-device that a kind of delustering agent generates in producing |
| CN205965112U (en) * | 2016-08-12 | 2017-02-22 | 湖北生物医药产业技术研究院有限公司 | Liquid waste collection device and liquid chromatogram |
| CN110662963B (en) * | 2017-12-30 | 2021-03-19 | 深圳迈瑞生物医疗电子股份有限公司 | Waste liquid pool, waste liquid treatment device and sample analyzer |
| KR20220025034A (en) * | 2020-03-06 | 2022-03-03 | 후지 덴키 가부시키가이샤 | Exhaust gas treatment unit and liquid discharge unit |
| CN112903411B (en) * | 2021-01-25 | 2023-02-03 | 东南大学 | Multi-mode biological particle concentrator |
| CN113092216A (en) * | 2021-05-07 | 2021-07-09 | 上海北裕分析仪器股份有限公司 | Gas-liquid separation device and gas-liquid separation method for gas-phase molecular absorption spectrometer |
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