Automatic air inlet system of isotope ratio analyzer

Abstract

The invention discloses an automatic gas inlet system of an isotope ratio analyzer, and is applied to the technical field of isotope measurement. Comprising a gas inlet device, an adjusting device and a control device, gas enters the isotope ratio analyzer through the gas inlet device, and the control device controls entering and extraction of the gas through the adjusting device; the control device receives adjustment parameters and automatically controls the gas inlet device to complete gas inlet, the control device can automatically generate an equipment automatic adjustment scheme for measuring various gases based on a measurement scheme, and gas inlet of the various gases and subsequent isotope ratio analysis are automatically completed based on the equipment automatic adjustment scheme; the problem that in the prior art, due to the fact that a measurement scheme is complex, complex manual operation causes operation errors, and consequently analysis results are affected is solved, measurement stability is guaranteed, and meanwhile detection efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of isotope measurement, and more particularly to an automatic air intake system of an isotope ratio analyzer. Background Art

[0002] Isotopes are atoms with the same atomic number but different atomic masses, that is, they have the same number of protons but different numbers of neutrons. The isotope ratio of an element is the ratio of the abundance of each isotope in the element. The study of isotope ratios can be applied to the fields of geoscience environment, biomedicine, chemical reactions, and metabolism research. There are three main applications of isotope ratio analysis: 1. Determination of stable and unstable isotope ratios, mainly used in geoscience research and environmental research; 2. Isotope tracer experiments, mainly used in biological and medical research, chemical reactions, and metabolic research; 3. Isotope dilution method, used for trace and ultra-trace element concentration analysis. Isotope tracer experiments are of great significance in biological and medical research. For example, there are tracer experiments for elements such as Li, Fe, Zn, Cu, Se, and Pb. These studies are very important for metabolism, treatment, and toxicity research. The commonly used analysis method at present is to use an isotope ratio analyzer. Its working method is to pass gas into the isotope ratio analyzer through the air inlet to calibrate the stable isotope ratio of the elements in the gas. However, the current isotope ratio analyzer air intake device requires manual operation by professionals, which is cumbersome and prone to errors. Therefore, how to provide an automated air intake system for an isotope ratio analyzer is an urgent problem to be solved by those skilled in the art. Summary of the invention

[0003] In view of this, the present invention provides an automatic air intake system for an isotope ratio analyzer, which automatically controls the working status of each regulating device in the air intake system to achieve automatic air intake and isotope ratio analysis of the gas to be measured.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] An automatic air intake system for an isotope ratio analyzer comprises an air intake device, an adjusting device and a control device. The air intake device is connected to the isotope ratio analyzer, the adjusting device is arranged in the air intake device, the control device is connected to the adjusting device, the gas enters the isotope ratio analyzer through the air intake device, and the control device controls the entry and extraction of the gas through the adjusting device to realize automatic air intake.

[0006] Optionally, the air intake device includes an air intake branch and an air outlet branch, the air intake branch includes an air inlet group, a drying tube, a filter and an air storage bin which are connected in sequence through pipelines, the air storage bin is connected to the isotope ratio analyzer through a pipeline, the air inlet group includes multiple air inlets, the ends of the multiple air inlets are all connected to the drying tube, and the air outlet of the air outlet branch is connected to the isotope ratio analyzer through a pipeline.

[0007] Optionally, an electric heating device and a refrigeration device are provided in the gas storage bin, and the control device adjusts the temperature of the gas to be tested through the electric heating device and the refrigeration device.

[0008] Optionally, the air inlet branch further includes a carrier gas inlet, and the carrier gas inlet is connected to the drying tube through a pipeline.

[0009] Optionally, the regulating device includes multiple electromagnetic multi-way valves, multiple flow meters, multiple vacuum pumps, temperature sensors and pressure sensors, the temperature sensors and pressure sensors are arranged in the gas storage bin, the multiple electromagnetic multi-way valves are respectively arranged at the end of the air inlet, after the drying tube, after the filter, after the gas storage bin, after the carrier gas inlet and at the end of the air outlet, multiple flow meters are correspondingly arranged at each electromagnetic multi-way valve, and multiple vacuum pumps are respectively arranged between the gas storage bin and the isotope ratio analyzer, and at the air outlet; different gases to be tested enter from multiple air inlets respectively, and the carrier gas enters through the carrier gas inlet. The gas to be tested entering the isotope ratio analyzer through the air inlet system can be controlled by opening and closing the electromagnetic multi-way valve, and the gas to be tested is discharged through the vacuum pump at the air outlet after calibration.

[0010] Optionally, the control device includes a control unit, a parameter acquisition unit, a communication unit, a drive unit, an execution unit and a display device. The control unit is respectively connected to the parameter acquisition unit, the communication unit and the drive unit, the drive unit is connected to the execution unit, and the display device is connected to the control unit; the parameter acquisition unit receives the adjustment parameters of the adjustment device and sends them to the control unit, the control unit generates a control signal of the adjustment device according to the acquired adjustment parameter information, and controls the execution unit through the drive unit to control the adjustment device to achieve automatic air intake.

[0011] Optionally, the control device further includes a remote control device, which is connected to the control unit via a communication unit. The remote control device remotely checks adjustment parameters of the adjustment device and sends remote control instructions to the control unit to complete remote control of the adjustment device.

[0012] Optionally, the control device also includes an early warning unit, which is connected to the control unit. By comparing the adjustment parameters of the adjustment device with the preset adjustment values, it is determined whether the adjustment parameters meet the early warning standards. If the early warning standards are met, early warning information is sent to the control unit, and the control unit sends the early warning information to the display device.

[0013] It can be seen from the above technical scheme that, compared with the prior art, the present invention provides an automatic air intake system for an isotope ratio analyzer, which has the following beneficial effects: the present invention receives adjustment parameters through a control device and automatically controls the air intake device to complete the air intake, and the control device can automatically generate an automatic adjustment scheme for the equipment for measuring multiple gases based on the measurement scheme, and automatically completes the air intake of multiple gases and subsequent isotope ratio analysis based on the automatic adjustment scheme of the equipment, thereby solving the problem in the prior art that the complex manual operation caused by the complexity of the measurement scheme will cause operational errors and thus affect the analysis results, thereby ensuring the measurement stability and improving the detection efficiency; by setting multiple air inlets and corresponding adjustment devices, the automatic air intake and analysis of multiple gases are realized, without the need for manual switching of the gases to be tested, and the measurement and analysis processes of multiple gases can be set at the same time; an early warning unit is set to analyze the adjustment parameters, and an early warning is issued when an error occurs in the operation of the automatic air intake system, further reducing the probability of error in the analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention 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 embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0015] Figure 1 It is a principle diagram of the air intake system of the isotope ratio analyzer of the present invention;

[0016] Figure 2 It is the principle diagram of the air intake device of the present invention;

[0017] Figure 3 It is the principle diagram of the control device of the present invention. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] The embodiment of the present invention discloses an automatic air intake system for an isotope ratio analyzer, such as Figure 1As shown, it includes an air intake device, a regulating device and a control device. The air intake device is connected to the isotope ratio analyzer. The regulating device is arranged in the air intake device. The control device is connected to the regulating device. The gas enters the isotope ratio analyzer through the air intake device. The control device controls the entry and extraction of the gas through the regulating device to realize automatic air intake.

[0020] Further, such as Figure 2 As shown, the air intake device includes an air intake branch and an air outlet branch. The air intake branch includes an air inlet group, a drying tube, a filter and an air storage bin which are connected in sequence through pipelines. The air storage bin is connected to the isotope ratio analyzer through a pipeline. The air inlet group includes multiple air inlets, and the ends of the multiple air inlets are all connected to the drying tube. The air outlet of the air outlet branch is connected to the isotope ratio analyzer through a pipeline.

[0021] Furthermore, an electric heating device and a refrigeration device are provided in the gas storage bin, and the control device adjusts the temperature of the gas to be tested through the electric heating device and the refrigeration device.

[0022] Furthermore, the air intake branch also includes a carrier gas inlet, and the carrier gas inlet is connected to the drying tube through a pipeline.

[0023] Furthermore, the regulating device includes multiple electromagnetic multi-way valves, multiple flow meters, multiple vacuum pumps, temperature sensors and pressure sensors. The temperature sensors and pressure sensors are arranged in the gas storage bin. The multiple electromagnetic multi-way valves are respectively arranged at the end of the air inlet, after the drying tube, after the filter, after the gas storage bin, after the carrier gas inlet and at the end of the air outlet. Multiple flow meters are correspondingly arranged at each electromagnetic multi-way valve. Multiple vacuum pumps are respectively arranged between the gas storage bin and the isotope ratio analyzer and at the air outlet. Different gases to be tested enter from multiple air inlets respectively, and the carrier gas enters through the carrier gas inlet. The gas to be tested entering the isotope ratio analyzer through the air inlet system can be controlled by opening and closing the electromagnetic multi-way valve. After the calibration of the gas to be tested is completed, it is discharged through the vacuum pump at the air outlet.

[0024] Further, such as Figure 3 As shown, the control device includes a control unit, a parameter acquisition unit, a communication unit, a drive unit, an execution unit and a display device. The control unit is respectively connected to the parameter acquisition unit, the communication unit and the drive unit, the drive unit is connected to the execution unit, and the display device is connected to the control unit; the parameter acquisition unit receives the adjustment parameters of the adjustment device and sends them to the control unit, the control unit generates a control signal of the adjustment device according to the acquired adjustment parameter information, and controls the execution unit through the drive unit to control the adjustment device to realize automatic air intake.

[0025] Furthermore, in an embodiment of the present invention, three air inlets are provided, which are respectively connected to the gas A to be tested, the gas B to be tested, and the gas C to be tested. The control unit generates a preset control scheme, including the flow rate of each gas to be tested, the order of introduction, the opening and closing of each electromagnetic multi-way valve and the vacuum pump corresponding to the order of introduction, the temperature of each gas to be tested, and the working status of the electric heating device and the refrigeration device. When the measurement officially starts, the control unit opens the electromagnetic multi-way valve and the vacuum pump corresponding to the gas A to be tested, and passes the gas A to be tested into the gas storage bin after drying and filtering. During this process, the electromagnetic multi-way valves corresponding to the gas B to be tested and the gas C to be tested are closed, and the control unit controls the gas in the gas storage bin. Electric heating equipment or refrigeration equipment is used to make the temperature of the gas A to be measured reach the preset temperature. Then, the electromagnetic multi-way valve of the gas storage bin is opened to pass the gas A to be measured into the isotope ratio analyzer and all electromagnetic multi-way valves are closed. After the measurement, the electromagnetic multi-way valve at the gas outlet and the vacuum pump are opened to extract the gas A to be measured from the isotope ratio analyzer. Similarly, the gas B to be measured and the gas C to be measured are measured in turn. The opening and closing states of all electromagnetic multi-way valves during the measurement process, the statistical data of the flow meter, the temperature data and pressure data in the gas storage bin, and the measurement result data are all viewed through the display device. If carrier gas needs to be introduced, the electromagnetic multi-way valve corresponding to the carrier gas inlet and the electromagnetic multi-way valve corresponding to the gas to be measured are opened together.

[0026] Furthermore, the control device also includes a remote control device, which is connected to the control unit via the communication unit. The remote control device remotely checks the adjustment parameters of the adjustment device and sends remote control instructions to the control unit to complete the remote control of the adjustment device.

[0027] Furthermore, the control device also includes an early warning unit, which is connected to the control unit. By comparing the adjustment parameters of the adjustment device with the preset adjustment values, it is determined whether the adjustment parameters meet the early warning standards. If the early warning standards are met, an early warning message is sent to the control unit, and the control unit sends the early warning message to the display device.

[0028] Furthermore, in an embodiment of the present invention, the remote control device can be a smart phone, a tablet computer, or a laptop computer; in the preset intake scheme of the intake system, the inlet flow of each gas to be tested has a preset adjustment value. If the gas flow in the adjustment parameter reaches the preset adjustment value but the corresponding electromagnetic multi-way valve has not been closed, an early warning message is sent to the display device.

[0029] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0030] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automated air intake system for an isotope ratio analyzer, characterized in that: It includes an air intake device, a regulating device and a control device. The air intake device is connected to the isotope ratio analyzer. The regulating device is arranged in the air intake device. The control device is connected to the regulating device. The gas enters the isotope ratio analyzer through the air intake device. The control device controls the entry and extraction of the gas through the regulating device to realize automatic air intake.

2. The automatic air intake system of an isotope ratio analyzer according to claim 1, characterized in that: The air intake device includes an air intake branch and an air outlet branch. The air intake branch includes an air inlet group, a drying tube, a filter and an air storage bin which are connected in sequence through pipelines. The air storage bin is connected to an isotope ratio analyzer through a pipeline. The air inlet group includes multiple air inlets, and the ends of the multiple air inlets are all connected to the drying tube. The air outlet of the air outlet branch is connected to the isotope ratio analyzer through a pipeline.

3. The automatic air intake system of an isotope ratio analyzer according to claim 2, characterized in that: The gas storage bin is provided with electric heating equipment and refrigeration equipment, and the control device adjusts the temperature of the gas to be tested through the electric heating equipment and refrigeration equipment.

4. The automatic air intake system of an isotope ratio analyzer according to claim 3, characterized in that: The air inlet branch also includes a carrier gas inlet, which is connected to the drying tube through a pipeline.

5. The automatic air intake system of an isotope ratio analyzer according to claim 4, characterized in that: The regulating device comprises a plurality of electromagnetic multi-way valves, a plurality of flow meters, a plurality of vacuum pumps, a temperature sensor and a pressure sensor. The temperature sensor and the pressure sensor are arranged in the gas storage bin. The plurality of electromagnetic multi-way valves are respectively arranged at the end of the gas inlet, after the drying tube, after the filter, after the gas storage bin, after the carrier gas inlet and at the end of the gas outlet. The plurality of flow meters are correspondingly arranged at each electromagnetic multi-way valve. The plurality of vacuum pumps are respectively arranged between the gas storage bin and the isotope ratio analyzer and at the gas outlet. Different gases to be measured enter from the plurality of gas inlets respectively, and the carrier gas enters through the carrier gas inlet. The gases to be measured entering the isotope ratio analyzer through the gas inlet system are controlled by opening and closing the electromagnetic multi-way valves. After the calibration of the gases to be measured is completed, the gases to be measured are discharged through the vacuum pump at the gas outlet.

6. The automatic air intake system of an isotope ratio analyzer according to claim 1, characterized in that: The control device includes a control unit, a parameter acquisition unit, a communication unit, a drive unit, an execution unit and a display device. The control unit is respectively connected to the parameter acquisition unit, the communication unit and the drive unit, the drive unit is connected to the execution unit, and the display device is connected to the control unit; the parameter acquisition unit receives the adjustment parameters of the adjustment device and sends them to the control unit, the control unit generates a control signal of the adjustment device according to the acquired adjustment parameter information, and controls the execution unit through the drive unit to control the adjustment device to realize automatic air intake.

7. The automatic air intake system of an isotope ratio analyzer according to claim 6, characterized in that: The control device also includes a remote control device, which is connected to the control unit via a communication unit. The remote control device remotely checks the adjustment parameters of the adjustment device and sends remote control instructions to the control unit to complete remote control of the adjustment device.

8. The automatic air intake system of an isotope ratio analyzer according to claim 6, characterized in that: The control device also includes an early warning unit, which is connected to the control unit. By comparing the adjustment parameters of the adjustment device with the preset adjustment values, it is determined whether the adjustment parameters meet the early warning standards. If the early warning standards are met, an early warning message is sent to the control unit, and the control unit sends the early warning message to the display device.

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