CN214427371U - Multifunctional sample introduction device suitable for total organic carbon analyzer - Google Patents
Multifunctional sample introduction device suitable for total organic carbon analyzer Download PDFInfo
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- CN214427371U CN214427371U CN202120495611.3U CN202120495611U CN214427371U CN 214427371 U CN214427371 U CN 214427371U CN 202120495611 U CN202120495611 U CN 202120495611U CN 214427371 U CN214427371 U CN 214427371U
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Abstract
The embodiment of the utility model discloses a multi-functional sampling device suitable for total organic carbon analysis appearance, multichannel diverter valve include 1 public input channel and 5 output channel at least, and 5 output channel are first output channel, second output channel, third output channel, fourth output channel and fifth output channel; the three-way valve is characterized in that 3 ports of the three-way valve are sequentially connected with an output end of a first sampling pump, an output end of a second sampling pump and a common input channel of the multi-channel switching valve, an input end of the first sampling pump is connected with a sample bottle, an input end of the second sampling pump is connected with an acid bottle, a first output channel and a second output channel of the multi-channel switching valve are connected with an NPOC reaction tank, a third output channel of the multi-channel switching valve is connected with a high-temperature cracking furnace, and a fourth output channel and a fifth output channel of the multi-channel switching valve are connected with an IC reaction tank; the utility model provides a multi-functional sampling device that is applicable to total organic carbon analysis appearance of pipe-line system simple, simple operation.
Description
Technical Field
The utility model relates to a total organic carbon analysis appearance technical field specifically is a multi-functional sampling device suitable for total organic carbon analysis appearance.
Background
The total organic carbon analyzer refers to an instrument for determining Total Organic Carbon (TOC) in a solution. The measuring principle is that organic carbon in the solution is oxidized and converted into carbon dioxide, and the content of the carbon dioxide is measured by a detector after interference substances are eliminated. And quantitatively determining the total organic carbon in the solution by utilizing the corresponding relation of the carbon content between the carbon dioxide and the total organic carbon. The TOC analyzer has the advantages of simple flow, good reproducibility, high sensitivity, stability and reliability, no chemical consumption in the determination process, no secondary pollution basically, complete oxidation and the like.
The method for testing TOC by using a total organic carbon analyzer comprises the following steps: subtraction and direct methods. The subtraction method is to measure the TC (total carbon) content and the TIC (total non-polar carbon) content in the sample respectively, and subtract the TIC from the TC to obtain the TOC. Wherein, the TC (total carbon) detection method comprises the following steps: the method mainly comprises the steps that a water sample to be detected is sampled to a high-temperature cracking furnace of a total organic carbon analyzer from a sample bottle by a sampling pump module or a pump sampling mechanism, the cracking furnace is heated at high temperature (the temperature is increased to 800 ℃ after catalysts are filled in advance), and organic matters in the sample are decomposed into CO2, so that the purpose of detection is achieved. TIC (total electrodeless carbon) detection method: the method mainly comprises the steps of firstly sampling a water sample to be detected into a reaction container from a sample bottle by using a sampling pump module or a pump sampling mechanism, then sampling an acid catalyst into the reaction container, mixing and acidifying the acid catalyst to generate CO2, and thus the purpose of detection is achieved. The direct method (i.e., NPOC detection method) is a method in which a sample is pretreated with acid and aeration to remove TIC from the sample, and the result is NPOC (non-purgeable organic carbon), i.e., TOC (total organic carbon).
Therefore, the sample injection system of the total organic carbon analyzer in the industry at present comprises: 1. -a sample injection module for TC (total carbon) testing; 2. a sample injection module for IC (total inorganic carbon) test; 3. a sample injection module for NPOC (non-purgeable organic carbon) test; 4. an acid adding module for IC (total inorganic carbon) test; 5. the NPOC (non-purgeable organic carbon) test uses an acid addition module. However, in the prior art, the 5 modules are independent working circuits. In the process of switching the working circuit, because a plurality of public modules are involved, a plurality of three-way or two-way electromagnetic valves are required to be utilized, so that the pipeline system of the instrument is too complex, and the working instability and hidden danger of the system are increased; the whole instrument becomes larger in size, and the ineffective cost of the product is greatly increased.
In summary, the prior art still lacks a multifunctional sample introduction device applicable to the total organic carbon analyzer with simple pipeline system and convenient operation.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a pipeline system is simple, the simple operation's multi-functional sampling device that is applicable to total organic carbon analysis appearance.
To achieve the purpose, the embodiment of the present invention provides the following technical solutions:
a multifunctional sample introduction device suitable for a total organic carbon analyzer comprises a multi-channel switching valve, an NPOC reaction tank, an IC reaction tank, a high-temperature cracking furnace, a three-way valve, a first sampling pump, a sample bottle, a second sampling pump and an acid bottle,
the multi-channel switching valve at least comprises 1 common input channel and 5 output channels, wherein the 5 output channels are a first output channel, a second output channel, a third output channel, a fourth output channel and a fifth output channel;
the output of first sampling pump, the output of second sampling pump and the common input channel of multichannel diverter valve are connected in proper order to 3 ports of three-way valve, the input of first sampling pump is connected the sample bottle, the input of second sampling pump is connected the acid bottle, the first output channel and the second output channel of multichannel diverter valve are connected the NPOC reaction tank, the third output channel of multichannel diverter valve is connected the pyrolysis furnace, the fourth output channel and the fifth output channel of multichannel diverter valve are connected the IC reaction tank.
Preferably, the multi-channel switching valve further comprises a motor and a rotor mechanism, a driving shaft of the motor is connected with the rotor mechanism, the common input channel is arranged in the center of the rotor mechanism, and the 5 output channels are uniformly distributed around the rotor mechanism.
Preferably, the motor is a stepping motor.
Preferably, the first sampling pump and the second sampling pump include a micro vacuum pump.
Preferably, the three-way valve comprises an electric three-way ball valve.
Compared with the prior art, the utility model has following advantage: the utility model provides a multi-functional sampling device suitable for total organic carbon analysis appearance utilizes multichannel electromagnetism diverter valve to integrate a plurality of work return circuits, has simplified pipe-line system, has reduced product volume and invalid cost. And, the utility model provides a multi-functional sampling device simple operation suitable for total organic carbon analysis appearance, greatly increased work efficiency.
Drawings
To more clearly illustrate the technical solution of the present invention, the drawings required for the embodiments of the present invention will be briefly described below.
It should be apparent that the drawings in the following description are only for some embodiments of the present invention, and that other drawings can be obtained by those skilled in the art without any inventive exercise, and the other drawings also belong to the drawings required for the embodiments of the present invention.
Fig. 1 is a schematic structural diagram of a multifunctional sample injection device suitable for a total organic carbon analyzer according to an embodiment of the present invention;
reference numerals: 1. the device comprises a multi-channel switching valve, 2, a second sampling pump, 3, a three-way valve, 4, a first sampling pump, 5, an acid bottle, 6, a sample bottle, 7, a pyrolysis furnace, 8, an IC reaction tank, 9 and an NPOC reaction tank.
Detailed Description
In order to make the purpose, technical solution, beneficial effect and obvious progress of the embodiments of the present invention clearer, the drawings provided in the embodiments of the present invention will be combined below to clearly and completely describe the technical solution in the embodiments of the present invention.
It is obvious that all of these described embodiments are only some, not all embodiments of the invention; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that the terms "first", "second" and "third" (if present) and the like in the description and claims of the present invention and the accompanying drawings of the embodiments of the present invention are used only for distinguishing different objects and not for describing a particular order. Furthermore, the terms "comprises" and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
It is to be understood that:
in the description of the embodiments of the present invention, the terms "upper", "lower", "top", "bottom", and other indicative orientations or positions are only used for describing the orientations or positional relationships shown in the drawings according to the embodiments of the present invention, and are not intended to indicate or imply specific orientations, specific orientation configurations, and operations that the devices or elements must have, and therefore, should not be construed as limiting the present invention.
In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or movably connected, or integrated; either directly or indirectly through intervening media, intangible signal, or even optical, communication between two elements, or an interaction between two elements, unless expressly limited otherwise.
The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
It should be further noted that the following embodiments may be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.
The technical solution of the present invention will be described in detail with reference to specific examples.
Example 1
As shown in fig. 1, a multifunctional sample introduction device suitable for a total organic carbon analyzer is shown, which comprises a multi-channel switching valve 1, a second sampling pump 2, a three-way valve 3, a first sampling pump 4, an acid bottle 5, a sample bottle 6, a pyrolysis furnace 7, an IC reaction tank 8 and an NPOC reaction tank 9, wherein the multi-channel switching valve 1 comprises 1 common input channel 1-0 and 5 output channels, and the 5 output channels are a first output channel 1-1, a second output channel 1-2, a third output channel 1-3, a fourth output channel 1-4 and a fifth output channel 1-5; the three-way valve 3 has 3 ports connected successively to the output of the first sampling pump 4, the output of the second sampling pump 2 and the common input channel 1-0 of the multi-channel switching valve 1, the input of the first sampling pump 4 is connected to the sample bottle 6, the input of the second sampling pump 2 is connected to the acid bottle 5, the first output channel 1-1 and the second output channel 1-2 of the multi-channel switching valve 1 are connected to the NPOC reaction tank 9, the third output channel 1-3 of the multi-channel switching valve 1 is connected to the high temperature cracking furnace 7, and the fourth output channel 1-4 and the fifth output channel 1-5 of the multi-channel switching valve 1 are connected to the IC reaction tank 8. The multi-channel switching valve 1 further comprises a motor and a rotor mechanism, a driving shaft of the motor is connected with the rotor mechanism, a public input channel 1-0 is arranged in the center of the rotor mechanism, and 5 output channels are uniformly distributed around the rotor mechanism.
In the embodiment, the multi-channel switching valve is based on the principle that a servo motor is arranged at the bottom of a valve body, the shaft end of the servo motor is connected with a rotor mechanism, and a common input channel 1-0 is arranged in the middle of the rotor mechanism and is communicated with 5 output channels arranged on the periphery. When the motor rotates, the rotor mechanism can rotate along with the motor, and the 5 internal passages are communicated with the 5 passages on the stator outside the valve body, so that the functions of common sample introduction in the middle of the valve body and arbitrary switching output of the 5 peripheral passages are realized.
In this embodiment, the first sampling pump comprises a micro vacuum pump.
In this embodiment, the second sampling pump comprises a micro vacuum pump.
In this embodiment, the three-way valve comprises an electric three-way ball valve.
In this embodiment, the acid bottle is a bottle for containing an acid reagent.
The utility model discloses a multi-functional sampling device suitable for total organic carbon analysis appearance utilizes multichannel diverter valve characteristic, optimize current sampling system, at first be connected to the public input channel of multichannel diverter valve in the sample bottle, and set up a sampling pump and a three-way solenoid valve in the middle of it, at first, the solenoid valve is not electrified to be the normally closed state, the sampling pump exports TC (total carbon) test pyrolysis furnace to by the outside three passway mouth of valve body respectively to the test appearance that the common port sampling obtained, TIC (total inorganic carbon) test is with the reaction tank, NPOC (can not sweep organic carbon) test is with the reaction tank. Then, the electromagnetic valve is electrified, and the sampling pump outputs the acid catalyst obtained by sampling the end of the common input channel to a reaction tank for testing TIC (total inorganic carbon) and a reaction tank for NPOC (non-purgeable organic carbon) respectively through two channel ports outside the valve body. Thus, the sampling and acid adding functions of TC (total carbon), TIC (total inorganic carbon) and NPOC (non-purgeable organic carbon) are completed.
Example 1 sampling loop, sample introduction loop for TC (Total carbon) test
Sample injection loop for TC (total carbon) test: the sample in the sample bottle 6 passes through a G1 pipeline, a first sampling pump 4 (from a 4-1 port to a 4-2 port), a G2 pipeline, a three-way electromagnetic valve 3 (from an NC port to a 3-1 port), a G3 pipeline, a multi-channel switching valve 1 (from a 1-0 port to a 1-3 port), a G4 pipeline and a pyrolysis furnace 7 in sequence.
Example 2 sampling loop, sample injection loop for TIC (Total inorganic carbon) test
A sample feeding loop for TIC (total inorganic carbon) test: the sample in the sample bottle 6 passes through a G1 pipeline, a first sampling pump 4 (from a 4-1 port to a 4-2 port), a G2 pipeline, a three-way electromagnetic valve 3 (from an NC port to a 3-1 port), a G3 pipeline, a multi-channel switching valve 1 (from a 1-0 port to a 1-4 port), a G6 pipeline and an IC reaction tank 8 in sequence.
Example 3 sampling loop, NPOC (non-purgeable organic carbon) test sample loop
NPOC (non-purgeable organic carbon) test sample injection loop: the sample in the sample bottle 6 passes through a G1 pipeline, a first sampling pump 4 (from a 4-1 port to a 4-2 port), a G2 pipeline, a three-way solenoid valve 3 (from an NC port to a 3-1 port), a G3 pipeline, a multi-channel switching valve 1 (from a 1-0 port to a 1-2 port), a G5 pipeline and an NPOC reaction tank 9 in sequence.
Example 4 acid feed loop, acid feed loop for TIC (Total inorganic carbon) test
Acid inlet loop for TIC (total inorganic carbon) test: the acid catalyst in the acid bottle 5 sequentially passes through a G8 pipeline, a second sampling pump 2 (from a port 2-1 to a port 2-2), a G7 pipeline, a three-way electromagnetic valve 3 (from a port NO to a port 3-1), a G3 pipeline, a multi-channel switching valve 1 (from a port 1-0 to a port 1-5), a G10 pipeline and an IC reaction tank 8.
Example 5 acid feed Loop, NPOC (non-purgeable polar carbon) test acid feed loop
NPOC (non-purgeable polar carbon) test acid inlet loop: the acid catalyst in the acid bottle 5 sequentially passes through a G8 pipeline, a second sampling pump 2 (from a port 2-1 to a port 2-2), a G7 pipeline, a three-way electromagnetic valve 3 (from a port NO to a port 3-1), a G3 pipeline, a multi-channel switching valve 1 (from a port 1-0 to a port 1-1), a G9 pipeline and an IC reaction tank 8.
The description of the terms "present embodiment," "embodiments of the invention," "as shown at … …," "further improved technical solutions," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention; in this specification, the schematic representations of the terms used above are not necessarily for the same embodiment or example, and the particular features, structures, materials, or characteristics described, etc., may be combined or brought together in any suitable manner in any one or more embodiments or examples; furthermore, those of ordinary skill in the art may combine or combine features of different embodiments or examples and features of different embodiments or examples described in this specification without undue conflict.
Finally, it should be noted that:
the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same;
although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions described in the foregoing embodiments may be modified or equivalent replaced by some or all of the technical features, and such modifications or replacements may not cause the essence of the corresponding technical solutions to depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. A multifunctional sample introduction device suitable for a total organic carbon analyzer is characterized by comprising a multi-channel switching valve, an NPOC reaction tank, an IC reaction tank, a pyrolysis furnace, a three-way valve, a first sampling pump, a sample bottle, a second sampling pump and an acid bottle,
the multi-channel switching valve at least comprises 1 common input channel and 5 output channels, wherein the 5 output channels are a first output channel, a second output channel, a third output channel, a fourth output channel and a fifth output channel;
the output of first sampling pump, the output of second sampling pump and the common input channel of multichannel diverter valve are connected in proper order to 3 ports of three-way valve, the input of first sampling pump is connected the sample bottle, the input of second sampling pump is connected the acid bottle, the first output channel and the second output channel of multichannel diverter valve are connected the NPOC reaction tank, the third output channel of multichannel diverter valve is connected the pyrolysis furnace, the fourth output channel and the fifth output channel of multichannel diverter valve are connected the IC reaction tank.
2. The multifunctional sample introduction device suitable for the total organic carbon analyzer as claimed in claim 1, wherein the multi-channel switching valve further comprises a motor and a rotor mechanism, a driving shaft of the motor is connected with the rotor mechanism, the common input channel is disposed at the center of the rotor mechanism, and the 5 output channels are uniformly distributed around the rotor mechanism.
3. The multifunctional sample introduction device suitable for the total organic carbon analyzer according to claim 2, wherein the motor is a stepping motor.
4. The multifunctional sample introduction device suitable for the total organic carbon analyzer according to claim 1, wherein the first sampling pump comprises a micro vacuum pump.
5. The multifunctional sample introduction device suitable for the total organic carbon analyzer according to claim 1, wherein the second sampling pump comprises a micro vacuum pump.
6. The multifunctional sample introduction device suitable for the total organic carbon analyzer according to claim 1, wherein the three-way valve comprises an electric three-way ball valve.
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| CN202120495611.3U CN214427371U (en) | 2021-03-09 | 2021-03-09 | Multifunctional sample introduction device suitable for total organic carbon analyzer |
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| CN202120495611.3U CN214427371U (en) | 2021-03-09 | 2021-03-09 | Multifunctional sample introduction device suitable for total organic carbon analyzer |
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