Waste gas treatment device for liquid chromatograph-mass spectrometer

Abstract

The utility model provides a waste gas treatment device for a liquid chromatograph-mass spectrometer, and relates to the technical field of the liquid chromatograph-mass spectrometer. The waste gas treatment device for the liquid chromatograph-mass spectrometer comprises a collection pipeline connected with a tail gas discharge pipe of the liquid chromatograph-mass spectrometer; the multiple baffles are arranged in the axis direction of the collecting pipeline; the condensing tank is connected with the other end of the collecting pipeline, and the other end of the collecting pipeline is communicated with the condensing tank; one end of the first exhaust pipe is communicated with the air outlet of the condensation tank; the first reaction tank is filled with acidic liquid or alkaline liquid, and the other end of the first exhaust pipe is connected into the first reaction tank; one end of the second exhaust pipe is connected with the first reaction tank; the second reaction tank is filled with alkaline liquid or acidic liquid, and the second exhaust pipe is connected into the second reaction tank; the adsorption assembly is communicated with the gas outlet of the second reaction tank. According to the utility model, through the combination of liquid and the adsorption layer, the waste gas treatment effect of the liquid chromatograph-mass spectrometer is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid-mass spectrometers, in particular to an exhaust gas treatment device for liquid-mass spectrometers. Background Art

[0002] Liquid chromatography-mass spectrometry (LC-MS) is widely used, mainly in the fields of food, biochemistry, drug development, environmental protection, safety and sanitation, etc. When using LC-MS, the ion source will produce waste gas, which contains acidic and alkaline compounds and other harmful components that affect the environment and need to be treated before discharge.

[0003] Traditional LC-MS tail gas collection devices generally perform adsorption through an adsorption layer during use, but the adsorption effect is not ideal. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a waste gas treatment device for a liquid-mass spectrometer, which improves the waste gas treatment effect of the liquid-mass spectrometer through the combination of liquid and an adsorption layer.

[0005] The technical solution adopted by the utility model is:

[0006] A waste gas treatment device for a liquid-mass spectrometer, comprising:

[0007] A collecting pipe is connected to the tail gas discharge pipe of the liquid-mass spectrometer. The collecting pipe is tilted after installation, and the higher end thereof is connected to the tail gas discharge pipe of the liquid-mass spectrometer.

[0008] Baffles, a plurality of baffles are arranged along the axial direction of the collecting pipe, a gap is provided between the bottom of the baffle and the bottom of the collecting pipe, and two adjacent baffles are installed in a staggered manner;

[0009] A condensation tank connected to the other end of the collecting pipe, wherein the lower end of the collecting pipe is connected to the condensation tank;

[0010] A first exhaust pipe, one end of which is connected to the gas outlet of the condensation tank;

[0011] A first reaction tank, the interior of which is filled with an acidic liquid or an alkaline liquid, wherein the other end of the first exhaust pipe is connected to the first reaction tank and extends below the liquid surface of the acidic liquid or the alkaline liquid;

[0012] A second exhaust pipe, one end of which is connected to the first reaction tank;

[0013] A second reaction tank, the interior of which is filled with alkaline liquid or acidic liquid, the second exhaust pipe is connected to the second reaction tank and extends below the liquid surface of the alkaline liquid or the acidic liquid;

[0014] The adsorption assembly is communicated with the gas outlet of the second reaction tank.

[0015] Optionally, the interior of the collecting pipe has an anti-corrosion layer.

[0016] Optionally, a plurality of protrusions are provided on the air inlet end of the baffle plate facing the collecting pipe.

[0017] Optionally, the processing device further comprises:

[0018] A liquid level sensor is installed on the outer side wall of the condensation tank;

[0019] A drain assembly installed at the bottom of the condensation tank;

[0020] A controller is installed on the outer side wall of the condensation tank, and the controller is electrically connected to the liquid level sensor and the drainage assembly.

[0021] Optionally, the drainage assembly comprises:

[0022] A drainage pipe, one end of which is connected to the condensation tank and the other end of which is connected to an external sewage treatment device;

[0023] The delivery pump is arranged on the discharge pipe, and the controller is electrically connected to the delivery pump.

[0024] Optionally, the acidic liquid or alkaline liquid occupies two-thirds of the volume of the first reaction tank or the second reaction tank.

[0025] Optionally, the adsorption component includes:

[0026] an exhaust pipe, one end of which is connected to the gas outlet of the second reaction tank;

[0027] An isolation net is provided at the air inlet and the air outlet of the exhaust pipe;

[0028] The activated carbon adsorbent is filled into the exhaust pipe and is located between the two isolation nets.

[0029] Compared with the prior art, the beneficial effects of the utility model are:

[0030] The flue gas first enters the collection pipe and undergoes preliminary condensation. The condensed liquid enters the condensation tank through the collection pipe for collection. The flue gas then passes through the condensation tank into the first reaction tank and the second reaction tank for treatment. After treatment, the flue gas is adsorbed by the adsorption component and can be discharged after adsorption. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 This is a schematic diagram of the overall structure of the waste gas treatment device for liquid chromatography-mass spectrometry instrument.

[0033] Figure 2 Schematic diagram of the collection pipe and baffle structure of the exhaust gas treatment device for LC-MS instrument Figure 1 .

[0034] Figure 3 Schematic diagram of the collection pipe and baffle structure of the exhaust gas treatment device for LC-MS instrument Figure 2 .

[0035] Reference numerals:

[0036] 1. Collection pipeline; 11. Anti-corrosion layer;

[0037] 2. baffle; 21. gap; 22. protrusion;

[0038] 3. Condensation tank;

[0039] 4. The first exhaust pipe;

[0040] 5. The first reaction tank;

[0041] 6. Second exhaust pipe;

[0042] 7. Second reaction tank;

[0043] 8. Adsorption component; 81. Exhaust pipe; 82. Isolation net; 83. Activated carbon adsorbent;

[0044] 9. Liquid level sensor;

[0045] 10. drainage assembly; 101. drainage pipeline; 102. delivery pump;

[0046] 110. Controller. DETAILED DESCRIPTION

[0047] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0048] In the description of the present invention, it should be understood that the terms "top", "bottom", "inside", "outside", "axial", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the products of the present invention are usually placed when in use, or are the orientations or positional relationships commonly understood by those skilled in the art. These are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0049] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] In the present utility model, unless otherwise clearly stipulated and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0051] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0052] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0053] like Figure 1 , Figure 2 and Figure 3As shown, the embodiment of the utility model provides an exhaust gas treatment device for a liquid-mass spectrometer, comprising: a collection pipe 1, a baffle 2, a condensation tank 3, a first exhaust pipe 4, a first reaction tank 5, a second exhaust pipe 6, a second reaction tank 7 and an adsorption assembly 8. One end of the collection pipe 1 is connected to the exhaust pipe of the liquid-mass spectrometer, and the collection pipe 1 is tilted after installation, and its high end is connected to the exhaust pipe of the liquid-mass spectrometer, and the condensation tank 3 is connected to the low end of the collection pipe 1. A plurality of baffles 2 are arranged along the axial direction of the collection pipe 1, and a gap 21 is provided between the bottom of the baffle 2 and the bottom of the collection pipe 1, so that the condensed liquid can enter the condensation pipe through the collection pipe 1. The adjacent baffles 2 are staggered to facilitate full contact between the flue gas and the baffle 2. One end of the first exhaust pipe 4 is connected to the gas outlet of the condensation tank 3, and the other end is connected to the first reaction tank 5. The first reaction tank 5 is filled with an acidic liquid or an alkaline liquid for absorbing alkaline substances or acidic substances in the flue gas. The treated flue gas enters the second reaction tank 7 through the second exhaust pipe 6, and the remaining substances are treated in the second reaction tank 7. The treated flue gas passes through the adsorption assembly 8 connected to the second reaction tank 7 for adsorption, and then is discharged.

[0054] During use, in order to allow the acidic substances or alkaline substances in the flue gas to fully contact the alkaline liquid or the acidic liquid, the first exhaust pipe 4 and the second exhaust pipe 6 are evenly extended to below the liquid surface of the acidic liquid and the alkaline liquid.

[0055] It should be noted that when the first reaction tank 5 contains an acidic liquid, the second reaction tank 7 contains an alkaline liquid.

[0056] In another embodiment, if Figure 2 and Figure 3 As shown, in order to increase the service life of the collecting pipe 1 , an anti-corrosion layer 11 is provided inside the collecting pipe 1 .

[0057] In another embodiment, if Figure 2 and Figure 3 As shown, in order to improve the condensation effect of the flue gas in the collecting pipe 1 , a plurality of protrusions 22 are provided on the air inlet end of the baffle 2 facing the collecting pipe 1 .

[0058] In another embodiment, if Figure 1 As shown, the processing device further includes: a liquid level sensor 9, a liquid drain assembly 10 and a controller 110. The liquid level sensor 9 is installed on the outer wall of the condensation tank 3. The liquid drain assembly 10 is installed at the bottom of the condensation tank 3. The controller 110 is installed on the outer wall of the condensation tank 3, and the controller 110 is electrically connected to the liquid level sensor 9 and the liquid drain assembly 10.

[0059] In order to prevent the liquid in the condensation tank 3 from overflowing during use, a liquid level sensor 9 is provided on the outer wall of the condensation tank 3 and a liquid draining assembly 10 is provided at the bottom. When the liquid in the condensation tank 3 is stored to the sensing position of the liquid level sensor 9, the liquid level sensor 9 feeds back information to the controller 110, and the controller 110 controls the liquid draining assembly 10 to drain the liquid, so as to prevent the condensed water level in the condensation tank 3 from being too high, which affects the subsequent use.

[0060] More specifically, if Figure 1 As shown, the drainage assembly 10 includes: a drainage pipe 101 and a delivery pump 102. One end of the drainage pipe 101 is connected to the condensation tank 3, and the other end is connected to an external sewage treatment device. The delivery pump 102 is arranged on the drainage pipe 101, and the controller 110 is electrically connected to the delivery pump 102.

[0061] During use, when the liquid level sensor 9 installed on the outer wall of the condensation tank 3 detects that the water level has reached a preset height, the controller 110 controls the delivery pump 102 to operate. During operation, the delivery pump 102 discharges the condensed water condensed in the condensation tank 3, effectively preventing the condensed water in the condensation tank 3 from overflowing.

[0062] In one embodiment, in order to prevent the acidic liquid or alkaline liquid from overflowing from the first reaction tank 5 or the second reaction tank 7 during the flue gas treatment process, the acidic liquid or alkaline liquid occupies two-thirds of the volume of the first reaction tank 5 or the second reaction tank 7.

[0063] In one embodiment, if Figure 1 As shown, the adsorption assembly 8 includes: an exhaust pipe 81, an isolation net 82 and an activated carbon adsorbent 83. One end of the exhaust pipe 81 is connected to the gas outlet of the second reaction tank 7. Two isolation nets 82 are respectively installed at the gas inlet and the gas outlet of the exhaust pipe 81, and the activated carbon adsorbent 83 is filled between the two isolation nets 82 after installation.

[0064] When the function is used, the treated flue gas is discharged through the second reaction tank 7 and adsorbed by the adsorption assembly 8 connected to the gas outlet of the second reaction tank 7. The activated carbon adsorbent 83 in the exhaust pipe 81 can be replaced regularly or according to actual use during use.

[0065] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A waste gas treatment device for a liquid chromatography-mass spectrometer, characterized in that: include: A collecting pipe is connected to the tail gas discharge pipe of the liquid-mass spectrometer. The collecting pipe is tilted after installation, and the higher end thereof is connected to the tail gas discharge pipe of the liquid-mass spectrometer. Baffles, a plurality of baffles are arranged along the axial direction of the collecting pipe, a gap is provided between the bottom of the baffle and the bottom of the collecting pipe, and two adjacent baffles are installed in a staggered manner; A condensation tank connected to the other end of the collecting pipe, wherein the lower end of the collecting pipe is connected to the condensation tank; A first exhaust pipe, one end of which is connected to the gas outlet of the condensation tank; A first reaction tank, the interior of which is filled with an acidic liquid or an alkaline liquid, wherein the other end of the first exhaust pipe is connected to the first reaction tank and extends below the liquid surface of the acidic liquid or the alkaline liquid; A second exhaust pipe, one end of which is connected to the first reaction tank; A second reaction tank, the interior of which is filled with alkaline liquid or acidic liquid, the second exhaust pipe is connected to the second reaction tank and extends below the liquid surface of the alkaline liquid or the acidic liquid; The adsorption assembly is communicated with the gas outlet of the second reaction tank.

2. The exhaust gas treatment device for liquid chromatography-mass spectrometry according to claim 1, characterized in that: The interior of the collecting pipe is provided with an anti-corrosion layer.

3. The exhaust gas treatment device for liquid chromatography-mass spectrometry according to claim 1 or 2, characterized in that: The baffle is provided with a plurality of protrusions at one end facing the air inlet of the collecting pipe.

4. The exhaust gas treatment device for liquid chromatography-mass spectrometry according to claim 1, characterized in that: The processing device further comprises: A liquid level sensor is installed on the outer side wall of the condensation tank; A drain assembly installed at the bottom of the condensation tank; A controller is installed on the outer side wall of the condensation tank, and the controller is electrically connected to the liquid level sensor and the drain assembly.

5. The exhaust gas treatment device for liquid chromatography-mass spectrometry according to claim 4, characterized in that: The drainage assembly comprises: A drainage pipe, one end of which is connected to the condensation tank and the other end of which is connected to an external sewage treatment device; The delivery pump is arranged on the discharge pipe, and the controller is electrically connected to the delivery pump.

6. The exhaust gas treatment device for liquid chromatography-mass spectrometry according to claim 1, characterized in that: The acidic liquid or alkaline liquid occupies two thirds of the volume of the first reaction tank or the second reaction tank.

7. The exhaust gas treatment device for liquid chromatography-mass spectrometry according to claim 1, characterized in that: The adsorption assembly comprises: an exhaust pipe, one end of which is connected to the gas outlet of the second reaction tank; An isolation net is provided at the air inlet and the air outlet of the exhaust pipe; The activated carbon adsorbent is filled into the exhaust pipe and is located between the two isolation nets.

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