Gas-liquid separator for atomic fluorescence spectrometer and atomic fluorescence spectrometer

Abstract

The present invention provides a gas-liquid separator for an atomic fluorescence spectrometer and an atomic fluorescence spectrometer, wherein the gas-liquid separator comprises a separator shell and a refrigeration component: the separator shell is provided with an air inlet, a liquid discharge port and an exhaust hole; the refrigeration component is accommodated in the separator shell, and the refrigeration component is spaced apart from the inner wall of the separator shell to form a refrigeration cavity; the refrigeration cavity is respectively connected to the air inlet, the liquid discharge port and the exhaust hole. The gas-liquid separator of this embodiment can refrigerate the gas-liquid mixture entering the gas-liquid separator by providing the refrigeration component, thereby improving the gas-liquid separation effect. In the atomic fluorescence spectrometer of this embodiment, by providing the above-mentioned gas-liquid separator, signal interference in the atomization process can be effectively prevented, and the occurrence of fluorescence quenching can be avoided, thereby reducing the noise of the detection signal of the atomic fluorescence spectrometer and improving the detection effect.

Description

Technical Field

[0001] The invention relates to the technical field of gas-liquid separation, and in particular to a gas-liquid separator for an atomic fluorescence spectrometer and the atomic fluorescence spectrometer. Background Art

[0002] Atomic fluorescence spectrometer uses the wavelength and intensity of atomic fluorescence spectrum to conduct qualitative and quantitative analysis of samples. In the analysis process, potassium borohydride or sodium borohydride is usually used as a reducing agent to reduce the element to be analyzed to a gaseous hydride and atomize it in the form of hydride. When the sample to be tested reacts with reducing agents such as potassium borohydride or sodium borohydride, water vapor will be produced in the reaction. When water vapor and hydride enter the atomizer at the same time, it will interfere with the test results and even cause fluorescence quenching. In addition, when the Hg element is measured by atomic fluorescence spectrometer, the residual water vapor in the pipeline will also cause the memory effect of the Hg element, affecting the measurement results.

[0003] The existing two-stage gas-liquid separation device on the market is provided with an air inlet, a liquid discharge port and an exhaust port. The device is hollow and has no refrigeration equipment. After the sample enters the two-stage gas-liquid separation device from the air inlet, the gas and liquid are separated, the gas is discharged from the exhaust port, and the liquid is discharged from the liquid discharge port. Its overall structure is relatively simple, and it can achieve preliminary separation of gas-liquid mixture. However, the traditional gas-liquid separation device still has the disadvantages of slow gas-liquid separation speed and poor separation effect, which affects the measurement efficiency.

[0004] Therefore, it is necessary to improve the existing gas-liquid separation device to change the current situation. Summary of the invention

[0005] The invention provides a gas-liquid separator for an atomic fluorescence spectrometer and the atomic fluorescence spectrometer, which are used to solve the problem of poor separation effect of a traditional gas-liquid separator.

[0006] The present invention provides a gas-liquid separator for an atomic fluorescence spectrometer, comprising:

[0007] The separator shell is provided with an air inlet, a liquid discharge port and an exhaust hole; and a refrigeration component is accommodated in the separator shell, and the refrigeration component is spaced apart from the inner wall of the separator shell to form a refrigeration cavity; the refrigeration cavity is respectively connected to the air inlet, the liquid discharge port and the exhaust hole.

[0008] According to one embodiment of the present invention, the refrigeration assembly includes a refrigeration rod and a refrigeration plate, the refrigeration rod is at least partially accommodated in the separator shell and is spaced apart from the separator shell to form the refrigeration cavity; the refrigeration plate is attached to one end of the refrigeration rod and is at least partially located on the outside of the refrigeration cavity, the refrigeration rod is used to conduct the cold energy of the refrigeration plate to cool the refrigeration cavity; wherein the refrigeration rod is detachably connected to the separator shell.

[0009] According to one embodiment of the present invention, the gas-liquid separator further comprises a partition, the partition is accommodated in the refrigeration cavity and is arranged around the refrigeration assembly, the partition is connected to the refrigeration fin and is used to conduct cold energy.

[0010] According to an embodiment of the present invention, the cooling fin is a semiconductor cooling fin, and the cold end of the cooling fin is attached to the cooling rod; the cooling assembly further includes a heat sink, and the heat sink is connected to the hot end of the cooling fin.

[0011] According to an embodiment of the present invention, the air inlet is located between the air exhaust hole and the liquid drain port along the inner wall of the refrigeration cavity.

[0012] According to one embodiment of the present invention, the gas-liquid separator further includes a flow guide, which is accommodated in the refrigeration cavity and at least partially located between the air inlet and the exhaust hole, and is used to guide the gas in the refrigeration cavity.

[0013] According to an embodiment of the present invention, the flow guide is a spiral structure and is arranged around the refrigeration component.

[0014] According to an embodiment of the present invention, the gas-liquid separator further includes a temperature measuring probe, which is accommodated in the refrigeration assembly and is separated from the refrigeration cavity.

[0015] The present invention also provides an atomic fluorescence spectrometer, comprising: an atomizer; and

[0016] The gas-liquid separator described in any one of the above items is connected to the atomizer.

[0017] According to one embodiment of the present invention, the gas-liquid separator is a two-stage gas-liquid separator, and the atomic fluorescence spectrometer also includes a first-stage gas-liquid separator, the output end of the first-stage gas-liquid separator is connected to the air inlet, and the exhaust hole is connected to the atomizer.

[0018] Implementing the embodiments of the present invention has the following beneficial effects:

[0019] In the gas-liquid separator of this embodiment, a refrigeration component is arranged in the separator shell, and a refrigeration cavity is formed between the refrigeration component and the inner wall of the separator shell. When the gas-liquid mixture enters the refrigeration cavity from the air inlet, the refrigeration component can exchange heat with the gas-liquid mixture, thereby improving the separation effect of the gas-liquid separator.

[0020] The gas-liquid separator of this embodiment can perform a refrigeration operation on the gas-liquid mixed liquid entering the gas-liquid separator by providing a refrigeration component, thereby improving the gas-liquid separation effect.

[0021] In the atomic fluorescence spectrometer of this embodiment, by arranging the above-mentioned gas-liquid separator in cooperation with the atomizer, signal interference in the atomization process can be effectively prevented, and the occurrence of fluorescence quenching can be avoided, thereby reducing the noise of the detection signal of the atomic fluorescence spectrometer and improving the detection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the present invention or 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 some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] in:

[0024] Figure 1 is an axial side view of a gas-liquid separator in an embodiment of the present invention;

[0025] Figure 2 Schematic diagram of the internal structure of the gas-liquid separator in an embodiment of the present invention;

[0026] Figure 3 is a schematic diagram of the internal structure of a gas-liquid separator in another embodiment of the present invention;

[0027] Figure 4 is a schematic diagram of the internal structure of a gas-liquid separator in another embodiment of the present invention;

[0028] Figure 5 yes Figure 4 Sectional view along line AA;

[0029] In the figure:

[0030] 10. Gas-liquid separator; 100. Separator housing; 110. Exhaust hole; 120. Air inlet; 130. Liquid discharge port; 140. Refrigeration chamber; 150. Accommodation chamber; 200. Refrigeration assembly; 210. Refrigeration rod; 220. Refrigeration plate; 300. Temperature probe; 400. Guide piece; 500. Partition piece; 600. Isolation piece. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are 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.

[0032] See also Figure 1 As shown, an embodiment of the present invention provides a gas-liquid separator 10 for an atomic fluorescence spectrometer, which includes a gas-liquid separator 10 and a refrigeration component 200: the separator shell 100 is provided with an air inlet 120, a liquid discharge port 130 and an exhaust hole 110; please refer to the figure together, the refrigeration component 200 is accommodated in the separator shell 100, and the refrigeration component 200 is spaced apart from the inner wall of the separator shell 100 to form a refrigeration cavity 140; the refrigeration cavity 140 is respectively connected to the air inlet 120, the liquid discharge port 130 and the exhaust hole 110.

[0033] In the gas-liquid separator 10 of the present embodiment, a refrigeration component 200 is disposed in the separator shell 100, and the refrigeration component 200 and the inner wall of the separator shell 100 are separated to form a refrigeration cavity 140. When the gas-liquid mixture enters the refrigeration cavity 140 from the air inlet 120, the refrigeration component 200 can exchange heat with the gas-liquid mixture, thereby improving the separation effect of the gas-liquid separator 10.

[0034] The gas-liquid separator 10 of this embodiment can perform a refrigeration operation on the gas-liquid mixed liquid entering the gas-liquid separator 10 by providing a refrigeration assembly 200, thereby improving the gas-liquid separation effect.

[0035] Specifically, in this embodiment, the refrigeration assembly 200 includes a refrigeration rod 210 and a refrigeration plate 220. The refrigeration rod 210 is at least partially accommodated in the separator shell 100 and is spaced apart from the separator shell 100 to form a refrigeration cavity 140. The refrigeration plate 220 is attached to one end of the refrigeration rod 210 and is at least partially located on the outside of the refrigeration cavity 140. The refrigeration rod 210 is used to conduct the cold energy of the refrigeration plate 220 to cool the refrigeration cavity 140. The refrigeration rod 210 is detachably connected to the separator shell 100.

[0036] like Figure 2As shown, in this embodiment, a receiving chamber 150 connected to the exhaust hole 110 is provided inside the separator housing 100, and the receiving chamber 150 has an opening at one end, and the refrigeration plate 220 can be inserted into the receiving chamber 150 from the opening, and is spaced apart from the inner wall of the receiving chamber 150 to form a refrigeration chamber 140. The refrigeration rod 210 in this embodiment is cylindrical, and the cross section of the refrigeration chamber 140 is annular, thereby increasing the contact area between the refrigeration rod 210 and the gas-liquid mixture, thereby ensuring the refrigeration effect of the refrigeration assembly 200. Specifically, the refrigeration rod 210 and the separator housing 100 can be connected by a detachable connection method such as a threaded connection, a snap fit, a magnetic connection, etc.

[0037] Specifically, the cooling fin 220 is a semiconductor cooling fin 220 , and the cold end of the cooling fin 220 is attached to the cooling rod 210 ; the cooling assembly 200 also includes a heat sink (not shown in the figure), which is connected to the hot end of the cooling fin 220 .

[0038] In this embodiment, the refrigeration plate 220 can achieve refrigeration by connecting to an external power supply, and transfer the cold to the refrigeration chamber 140 through the refrigeration rod 210. After the gas-liquid mixture enters the refrigeration chamber 140 through the air inlet 120, the mixture can contact the outer wall of the refrigeration rod 210 and exchange heat. The structure is simple, the use effect is good, and the cost is low.

[0039] It is understandable that the semiconductor refrigeration plate will generate heat during the refrigeration process. When the heat accumulates on the refrigeration plate 220, the refrigeration effect of the refrigeration plate 220 will be affected. By providing a heat sink to dissipate the heat at the hot end of the refrigeration plate 220, the refrigeration effect of the refrigeration plate 220 can be ensured. Specifically, the heat sink can be a heat dissipation component such as a heat dissipation fan, a fin heat sink, etc., which is not limited here.

[0040] Further, see Figure 2 As shown, the gas-liquid separator 10 further includes a temperature measuring probe 300 , which is accommodated in the refrigeration assembly 200 and is separated from the refrigeration cavity 140 .

[0041] By setting a temperature measuring probe 300 inside the cooling rod 210, it can monitor the temperature of the cooling chamber 140 and the cooling rod 210 in real time, and control the cooling plate 220 in real time, so as to ensure the separation effect of the gas-liquid separator 10, and at the same time enable the gas-liquid separator 10 to be applied to gas-liquid mixed liquid, with good use effect.

[0042] In a preferred embodiment, the temperature measuring probe 300 can be arranged on a side close to the exhaust hole 110; with this arrangement, the temperature measuring probe 300 can mainly monitor the temperature at the exhaust hole 110. When the temperature at the exhaust hole 110 reaches a preset temperature, the separation requirement can be met, thereby ensuring the separation effect of the gas-liquid separator 10.

[0043] Specific reference Figure 2 As shown, in this embodiment, along the inner wall of the refrigeration cavity 140 , the air inlet 120 is located between the air outlet 110 and the liquid outlet 130 .

[0044] like Figure 2 In the arrangement state shown, the air inlet 120 and the liquid discharge port 130 are sequentially arranged on the inner wall of the accommodating chamber 150 along the axial direction of the separator shell 100; specifically, the air inlet 120 is arranged on the upper side of the liquid discharge port 130, thereby, when the gas-liquid mixture enters from the air inlet 120, the gas is discharged upward from the exhaust hole 110, and the liquid is discharged from the liquid discharge port 130 located on the lower side of the air inlet 120. The two are discharged in different directions, which can avoid mixing of the two during the discharge process, thereby ensuring the separation effect of the gas-liquid separator 10; in some other embodiments, the liquid discharge port 130 can also be arranged at the bottom of the separator shell 100, which is not repeated here.

[0045] Further, see Figure 3 As shown, it is characterized in that the gas-liquid separator 10 also includes a guide member 400, which is accommodated in the refrigeration chamber 140, and the guide member 400 is at least partially located between the air inlet 120 and the exhaust hole 110, and is used to guide the gas in the refrigeration chamber 140.

[0046] By arranging the guide member 400 in the accommodating cavity 150, when the separated gas flows from the air inlet 120 toward the exhaust hole 110, the guide member 400 can slow down the flow speed of the gas to prolong the contact time between the gas and the refrigeration component 200. The residual liquid in the gas can also be refrigerated and separated by the refrigeration component 200, and the separation effect of the gas-liquid separator 10 is improved.

[0047] Specifically, in this embodiment, the flow guide 400 is a spiral structure and is disposed around the refrigeration assembly 200 .

[0048] With this arrangement, under the premise that the guide member 400 has a more compact structure, the path length of the gas between the air inlet 120 and the exhaust hole 110 can be increased as much as possible, thereby increasing the contact time between the gas and the refrigeration component 200 and achieving a good use effect.

[0049] See also Figure 3 As shown, in another embodiment, the gas-liquid separator 10 further includes a partition 500, which is accommodated in the refrigeration cavity 140 and disposed around the refrigeration assembly 200. The partition 500 is connected to the refrigeration fins 220 and is used to conduct cold energy.

[0050] In this embodiment, the inner wall of the partition 500 is spaced apart from the refrigeration rod 210, and a connection hole may be opened through the partition 500; by providing a partition 500 connected to the refrigeration plate 220 and used to conduct cold air in cooperation with the refrigeration rod 210, the refrigeration contact area between the refrigeration component 200 and the gas-liquid mixture can be increased, thereby improving the gas-liquid separation effect of the gas-liquid separator 10.

[0051] Further, see Figure 4 and Figure 5 As shown, in another embodiment, the gas-liquid separator 10 further includes an isolating member 600, an angle is formed between the axis L1 of the air inlet 120 and the axis L2 of the liquid discharge port 130, and the isolating member 600 is disposed between the air inlet 120 and the liquid discharge port 130, and is used to separate the air inlet 120 and the liquid discharge port 130.

[0052] By setting this, Figure 5 As shown, on the cross section of the gas-liquid separator 10, the isolation member 600 is located between the air inlet 120 and the liquid discharge port 130. When the gas-liquid mixture enters the refrigeration chamber 140 from the air inlet 120, the isolation member 600 can block the mixture to increase the retention time of the gas-liquid mixture in the refrigeration chamber 140, thereby increasing the contact time between the mixture and the refrigeration component 200, and further increasing the amount of gas precipitated from the mixture.

[0053] The present invention further provides an atomic fluorescence spectrometer, which includes an atomizer and the gas-liquid separator 10 described in any one of the above embodiments, wherein the gas-liquid separator 10 is connected to the atomizer.

[0054] In the atomic fluorescence spectrometer of this embodiment, by arranging the above-mentioned gas-liquid separator 10 in cooperation with the atomizer, signal interference in the atomization process can be effectively prevented, and the occurrence of fluorescence quenching can be avoided, thereby reducing the noise of the detection signal of the atomic fluorescence spectrometer and improving the detection effect.

[0055] In one embodiment, the gas-liquid separator 10 is a two-stage gas-liquid separator, and the atomic fluorescence spectrometer further includes a first-stage gas-liquid separator. The output end of the first-stage gas-liquid separator is connected to the gas inlet 120, and the liquid outlet 130 is connected to the atomizer.

[0056] In this embodiment, the sample forms a gas-liquid mixture after passing through the primary gas-liquid separator, and is separated into gas and liquid after passing through the secondary gas-liquid separator. In some embodiments, two gas-liquid separators 10 can also be provided to serve as the primary gas-liquid separator and the secondary gas-liquid separator, respectively.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A gas-liquid separator for an atomic fluorescence spectrometer, characterized in that: include: A separator shell is provided with an air inlet, a liquid discharge port and an exhaust hole; and a refrigeration component is accommodated in the separator shell, and the refrigeration component is spaced apart from the inner wall of the separator shell to form a refrigeration cavity; the refrigeration cavity is respectively connected to the air inlet, the liquid discharge port and the exhaust hole; The isolating member is disposed between the air inlet and the liquid discharge port, and is used to separate the air inlet and the liquid discharge port.

2. The gas-liquid separator according to claim 1, characterized in that: The refrigeration assembly includes a refrigeration rod and a refrigeration plate. The refrigeration rod is at least partially accommodated in the separator shell and is spaced apart from the separator shell to form the refrigeration cavity. The refrigeration plate is attached to one end of the refrigeration rod and is at least partially located on the outside of the refrigeration cavity. The refrigeration rod is used to conduct the cold energy of the refrigeration plate to cool the refrigeration cavity. The refrigeration rod is detachably connected to the separator shell.

3. The gas-liquid separator according to claim 2, characterized in that: The gas-liquid separator also includes a partition, which is accommodated in the refrigeration cavity and arranged around the refrigeration component. The partition is connected to the refrigeration plate and is used to conduct cold energy.

4. The gas-liquid separator according to claim 2, characterized in that: The cooling fin is a semiconductor cooling fin, and the cold end of the cooling fin is attached to the cooling rod; the cooling assembly also includes a heat sink, and the heat sink is connected to the hot end of the cooling fin.

5. The gas-liquid separator according to claim 1, characterized in that: The air inlet is located between the air exhaust hole and the liquid drain port along the inner wall of the refrigeration cavity.

6. The gas-liquid separator according to claim 1, characterized in that: The gas-liquid separator further comprises a flow guide member, which is accommodated in the refrigeration cavity and at least partially located between the air inlet and the exhaust hole, and is used to guide the gas in the refrigeration cavity.

7. The gas-liquid separator according to claim 6, characterized in that: The flow guide is a spiral structure and is arranged around the refrigeration component.

8. The gas-liquid separator according to claim 1, characterized in that: The gas-liquid separator also includes a temperature measuring probe, which is accommodated in the refrigeration component and is separated from the refrigeration cavity.

9. An atomic fluorescence spectrometer, characterized in that: include: Atomizer; And the gas-liquid separator according to any one of claims 1 to 8, wherein the gas-liquid separator is connected to the atomizer.

10. The atomic fluorescence spectrometer according to claim 9, characterized in that: The gas-liquid separator is a two-stage gas-liquid separator, and the atomic fluorescence spectrometer also includes a first-stage gas-liquid separator. The output end of the first-stage gas-liquid separator is connected to the air inlet, and the exhaust hole is connected to the atomizer.

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