CN212083463U - Automatic sample injector for gas-liquid shared steel cylinder - Google Patents

Automatic sample injector for gas-liquid shared steel cylinder Download PDF

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Publication number
CN212083463U
CN212083463U CN202020586954.6U CN202020586954U CN212083463U CN 212083463 U CN212083463 U CN 212083463U CN 202020586954 U CN202020586954 U CN 202020586954U CN 212083463 U CN212083463 U CN 212083463U
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port
sample
gas
flash evaporator
liquid
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CN202020586954.6U
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乔雨
谭智耀
景行
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Xinxin Instrument Technology Shanghai Co ltd
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Xinxin Instrument Technology Shanghai Co ltd
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Abstract

The utility model provides a gas-liquid shared steel cylinder automatic sample injector, which comprises a power supply, a control circuit, an analyzer, a flash evaporator, a purging port, a selector valve, a filter and a plurality of sample inlets; the selection valve is provided with a first through interface and a plurality of second through interfaces, the first through interface is connected with the flash evaporator, the flash evaporator is connected with the analyzer, and a purging port is connected on a pipeline between the flash evaporator and the selection valve in a shunting manner; the number of the sample inlets is consistent with that of the second through ports, and each second through port is connected with each sample inlet in a one-to-one correspondence manner; a bypass port pipeline connected in parallel is arranged outside the flash evaporator; the power supply supplies power to the control circuit, the control circuit is respectively in circuit connection with the computer, the analyzer, the flash evaporator, the purging port and the selection valve, and the computer drives the selection valve to communicate the first communication port with any one of the second communication ports through the control circuit. In this application, convenient quick leading-in analysis appearance with gaseous or liquid state's sample.

Description

Automatic sample injector for gas-liquid shared steel cylinder
Technical Field
The utility model relates to a flash distillation detection area especially relates to a gas-liquid sharing steel bottle autosampler.
Background
The existing sampling analysis mode is complex and needs manual auxiliary operation, the traditional method is to manually collect samples for many times in a short time according to actual requirements, then to analyze the samples one by one off-line, the sampling process and the sample storage process are very easy to generate errors, and the sampling analysis method is very complicated and difficult in actual operation. In order to improve the accuracy of the experiment as much as possible. Meanwhile, under the condition that a plurality of samples need to be detected, the single detection mode is not suitable for a large amount of detections in factories and the like.
In order to accurately detect the chemical liquid, the chemical liquid cannot be directly detected, and the chemical liquid usually has the functions of volatilization, gasification, corrosion and adsorption. If the chemical liquid is directly led into the detection device through the pipeline, whether the chemical liquid contains other impurities which affect the detection result cannot be ensured, and the common pipeline cannot be prevented from being corroded by the chemical liquid; if a chemical liquid is introduced into the detection apparatus using a test tube or a dropper, it is not possible to ensure whether or not a reaction of volatilization or vaporization occurs when the chemical liquid is exposed to the air, and it is also not possible to prevent adhesion of dust or bacteria.
That is, when a sample is detected, since the sample to be detected is divided into gas or liquid, and is corrosive or non-corrosive, different types of sample injectors are required to be selectively used, and the various types of sample injectors cannot be used in combination.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a gas-liquid sharing steel bottle autosampler can be applicable to the sample of gas and liquid simultaneously, convenient and quick leading-in analysis appearance with the sample of gas or liquid state.
In order to achieve the above object, the utility model provides a gas-liquid sharing steel bottle automatic sample injector, which comprises a power supply, a control circuit, an analyzer, a flash evaporator, a purging port, a selection valve, a filter and a plurality of sample inlets;
the selection valve is provided with a first through interface and a plurality of second through interfaces, the first through interface is connected with the flash evaporator, the flash evaporator is connected with the analyzer, and a pipeline between the flash evaporator and the selection valve is connected with the purging port in a shunting manner; the number of the sample inlets is consistent with that of the second through ports, and the second through ports are correspondingly connected with the sample inlets one by one; a bypass port pipeline connected in parallel is arranged outside the flash evaporator;
the power supply supplies power to the control circuit, the control circuit is respectively in circuit connection with the computer, the analyzer, the flash evaporator, the purging port and the selection valve, and the computer drives the selection valve to connect the first communication port with any one of the second communication ports through the control circuit.
Further, in the gas-liquid common steel cylinder automatic sample injector, the sample injection port is connected with a sample steel cylinder.
Further, in the automatic gas-liquid steel cylinder sample injector, a third through port is further arranged on the selector valve and connected with the filter, and the computer drives the selector valve to connect the first through port with the third through port through the control circuit.
Furthermore, in the gas-liquid shared steel cylinder automatic sample injector, a flow limiting device is arranged between the sample inlet and the second through port.
Furthermore, in the gas-liquid common steel cylinder automatic sample injector, the number of the second through ports on the selector valve is 2-50.
Furthermore, in the automatic gas-liquid cylinder sample injector, pipelines connected among the analyzers, the flash evaporator, the purge port, the selector valve, the filter and the sample injection port are glass tubes, plastic tubes, stainless steel tubes or composite material tubes.
Further, in the gas-liquid common cylinder autosampler, the outer diameter of the pipe line was 1/16 ″.
Further, in the gas-liquid common steel cylinder automatic sample injector, the pipeline is a passivation pipeline.
Further, in the gas-liquid common steel cylinder automatic sample injector, the power supply is 24V direct current.
Compared with the prior art, the beneficial effects of the utility model are mainly embodied in that: the sampling control is carried out through a multi-position selection valve, and the sampling can be carried out by a 2-50-position sample steel cylinder. The flow limiting device is used for applying pressure to the pipeline, and the communicated sample is introduced into the flash evaporator from the sample inlet to be gasified or directly enters the analyzer, so that the sample can selectively enter the analyzer in different modes according to actual conditions. The sweeping and blowing function that possesses can in time clear away remaining gas, reduces cross contamination, avoids influencing subsequent gas sample and carries out accurate detection. The control circuit can selectively control the sample introduction sequence, the repeated times, the single sample introduction time length, the sweeping and blowing time length, display the current sample introduction state and the like. The whole device has simple and safe structure, can realize full automation of sample introduction, improves the analysis efficiency and provides the reliability of analysis data.
Drawings
Fig. 1 and fig. 2 are schematic structural diagrams of a gas-liquid common steel cylinder automatic sample injector with two kinds of selector valves having different numbers of ports according to the present invention;
fig. 3 is a schematic diagram of the external structure of the automatic sample injector for gas-liquid shared steel cylinders of the present invention.
Wherein: the device comprises a flash evaporator 1, a purging port 2, a selector valve 3, a first through port 31, a second through port 32, a third through port 33, a filter 4, a sample inlet 5 and a bypass port 6.
Detailed Description
The present invention will now be described in greater detail with reference to the drawings, in which preferred embodiments of the present invention are shown, with the understanding that those skilled in the art can modify the present invention described herein while still achieving the beneficial effects of the present invention. Accordingly, the following description should be construed as broadly as possible to those skilled in the art and not as limiting the invention.
In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected", if any, are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.
As shown in fig. 1 to 3, the utility model provides a gas-liquid shared steel cylinder automatic sample injector, which comprises a power supply, a control circuit, an analyzer, a flash evaporator 1, a purging port 2, a selector valve 3, a filter 4 and a plurality of sample inlets 5; the selector valve 3 is provided with a first through interface 31, a plurality of second through interfaces 32 and a third through interface 33, the first through interface 31 is connected with the flash evaporator 1, the flash evaporator 1 is connected with the analyzer, and a pipeline between the flash evaporator 1 and the selector valve 3 is connected with a purging port 2 in a shunting manner; the number of the sample inlets 5 is consistent with that of the second through ports 32, and each second through port 32 is correspondingly connected with each sample inlet 5 one by one; the third through port 33 is connected with the filter 4; and a bypass port 6 pipeline connected in parallel is arranged outside the flash evaporator 1. The power supply supplies power to the control circuit, the control circuit is respectively in circuit connection with the computer, the analyzer, the flash evaporator 1, the purging port 2 and the selector valve 3, and the computer drives the selector valve through the control circuit to enable the first communication port 31 to be communicated with any one of the second communication ports 32 or enable the first communication port 31 to be communicated with the third communication port 33.
Further, as shown in fig. 3, a flow limiting device is disposed between the sample inlet 5 and the second through port 32, the sample inlet 5 is connected to the sample steel cylinder, the number of the second through ports 32 on the selector valve 3 is 2-50, i.e., the sample injection control is performed through the multi-position selector valve 3, and the sample injection of 2-50 positions can be performed simultaneously.
Meanwhile, as shown in fig. 1 to 2, in the present embodiment, the pipeline connected between each analyzer, the flash evaporator 1, the purge port 2, the selection valve 3, the filter 4 and the injection port 5 is a glass tube, a plastic tube, a stainless steel tube or a composite material tube, the outer diameter of the pipeline is 1/16 ″, and the pipeline may be a passivation pipeline for analyzing components such as sulfide. The passivation pipeline can avoid corrosion and adsorption and is suitable for detecting trace substances of sulfides and oxides.
In addition, the sample inlet 5 is a standard 1/4 ″ card sleeve connector, the power supply is 24V direct current, and the surface of the sample injector is provided with a display panel, and the current working state of the sample injector is marked on the display panel.
Specifically, when the sample to be detected is common liquid, the sample accessed from the sample inlet 5 is controlled by the flow limiting device, and then directly enters the analyzer from the bypass port 6 under the driving of pressure for analysis and detection. When the sample to be detected is chemical liquid, the sample accessed from the sample inlet 5 enters the flash evaporator 2 under the driving of pressure after being controlled by the current limiting device, the liquid sample to be detected is completely gasified by the flash evaporator 2, the sample after being gasified conveniently enters the analyzer for analysis and detection, and other impurities influencing the detection result are avoided from existing in the chemical liquid.
As shown in fig. 1 to 2, the specific operation is as follows:
1) the selection valve 3 is controlled to communicate the first communication port 31 with the third communication port 33, so that the purging port 2 is communicated with the analyzer, the flash evaporator 1 and the filter 4, purging is conveniently carried out, the gasified part in the initial sample is removed, and harmful substances in the purged gas are eliminated by using the filter 4;
2) after purging is finished, a sample steel cylinder is externally hung on the sample inlet 5, and limited pressure is applied to the sample by using a flow limiting device, so that the sample flows in stably and at a constant speed;
3) the selection valve 3 is controlled to connect the first through interface 31 with any one of the second through interfaces 32, namely the sample inlet 5 is connected with the analyzer 3;
if the sample steel cylinder is filled with common liquid, the common liquid enters the analyzer along the bypass port 6;
if the sample steel cylinder is filled with chemical liquid, the chemical liquid enters the flash evaporator 1, and the gasified sample enters the analyzer;
4) after the sample introduction is finished, controlling an analyzer to analyze, and sending an analysis result to a computer;
5) after the analysis is finished, the selection valve 3 is controlled to connect the first through interface 31 with the third through interface 33, and the connecting pipeline between the analyzer and the flash evaporator 1 is purged through the bypass port again, so that residual gas is removed, and the next sample injection inspection is carried out.
Wherein, the purging duration, the sample introduction sequence, the repeated sample introduction duration and the balance time can be set and controlled by the computer through the control circuit.
In summary, in the gas-liquid common cylinder autosampler proposed in this embodiment, the sample injection control is performed by the multi-position selector valve, and the sample can be injected from the 2-position to 50-position sample cylinders. The flow limiting device is used for applying pressure to the pipeline, and the communicated sample is introduced into the flash evaporator from the sample inlet to be gasified or directly enters the analyzer, so that the sample can selectively enter the analyzer in different modes according to actual conditions. The sweeping and blowing function that possesses can in time clear away remaining gas, reduces cross contamination, avoids influencing subsequent gas sample and carries out accurate detection. The control circuit can selectively control the sample introduction sequence, the repeated times, the single sample introduction time length, the sweeping and blowing time length, display the current sample introduction state and the like. The whole device has simple and safe structure, can realize full automation of sample introduction, improves the analysis efficiency and provides the reliability of analysis data.
The above description is only for the preferred embodiment of the present invention, and does not limit the present invention. Any technical personnel who belongs to the technical field, in the scope that does not deviate from the technical scheme of the utility model, to the technical scheme and the technical content that the utility model discloses expose do the change such as the equivalent replacement of any form or modification, all belong to the content that does not break away from the technical scheme of the utility model, still belong to within the scope of protection of the utility model.

Claims (9)

1. An automatic sample injector for a gas-liquid shared steel cylinder is characterized by comprising a power supply, a control circuit, an analyzer, a flash evaporator, a purging port, a selection valve, a filter and a plurality of sample inlets;
the selection valve is provided with a first through interface and a plurality of second through interfaces, the first through interface is connected with the flash evaporator, the flash evaporator is connected with the analyzer, and a pipeline between the flash evaporator and the selection valve is connected with the purging port in a shunting manner; the number of the sample inlets is consistent with that of the second through ports, and the second through ports are correspondingly connected with the sample inlets one by one; a bypass port pipeline connected in parallel is arranged outside the flash evaporator;
the power supply supplies power to the control circuit, the control circuit is respectively in circuit connection with the computer, the analyzer, the flash evaporator, the purging port and the selection valve, and the computer drives the selection valve to connect the first communication port with any one of the second communication ports through the control circuit.
2. The gas-liquid cylinder autosampler of claim 1, wherein said sample inlet is connected to a sample cylinder.
3. The gas-liquid common cylinder autosampler according to claim 1, wherein said selector valve further comprises a third port, said third port is connected to said filter, said computer drives said selector valve to connect said first port to said third port through said control circuit.
4. The gas-liquid common cylinder autosampler of claim 3, wherein a flow restriction device is provided between the sample inlet and the second port.
5. The gas-liquid common cylinder autosampler according to claim 3, wherein the number of the second through ports on the selector valve is 2 to 50.
6. The gas-liquid common cylinder autosampler of claim 3, wherein the piping connected between each of said analyzer, flash evaporator, purge port, selector valve, filter and sample inlet is a glass tube, plastic tube, stainless steel tube or composite tube.
7. The gas-liquid common cylinder autosampler of claim 6, wherein said tubing has an outer diameter of 1/16 ".
8. The gas-liquid common cylinder autosampler of claim 7, wherein said line is a passivation line.
9. The gas-liquid cylinder autosampler of claim 1, wherein said power source is 24V dc.
CN202020586954.6U 2020-04-20 2020-04-20 Automatic sample injector for gas-liquid shared steel cylinder Active CN212083463U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020586954.6U CN212083463U (en) 2020-04-20 2020-04-20 Automatic sample injector for gas-liquid shared steel cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020586954.6U CN212083463U (en) 2020-04-20 2020-04-20 Automatic sample injector for gas-liquid shared steel cylinder

Publications (1)

Publication Number Publication Date
CN212083463U true CN212083463U (en) 2020-12-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020586954.6U Active CN212083463U (en) 2020-04-20 2020-04-20 Automatic sample injector for gas-liquid shared steel cylinder

Country Status (1)

Country Link
CN (1) CN212083463U (en)

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