Fluorescence detector case temperature control system and fluorescence detection equipment

Abstract

The utility model relates to the field of case temperature control, in particular to a fluorescence detector case temperature control system and fluorescence detection equipment, and the system comprises a fluorescence detector case which is used for installing an optical machine and a detector for fluorescence detection; an air inlet hole is formed in the top of the fluorescent detector case and is used for receiving gas provided by an external gas source; the temperature control device comprises a vortex tube and an electromagnetic valve; the vortex tube is used for receiving gas provided by an external gas source, high-temperature gas flows to the gas inlet hole from a first outlet of the vortex tube, and low-temperature gas flows to the gas inlet hole from a second outlet of the vortex tube; the electromagnetic valve is used for controlling on-off of gas output by the vortex tube. The temperature in the fluorescence detector case can be regulated and controlled, the gas provided by the external gas source is heated or cooled through the vortex tube and is transmitted to the fluorescence detector case, and the temperature in the fluorescence detector case is regulated. The vortex tube is small in size, space-saving and convenient to install, and the temperature control device is simple in overall structure, low in cost and good in temperature control effect.

Description

Technical Field

[0001] The utility model relates to the field of chassis temperature control, and particularly relates to a temperature control system for a fluorescence detector chassis and a fluorescence detection device. Background Art

[0002] For chassis cabinets used in outdoor environments, there are generally requirements for temperature control and dust prevention. For a fluorescence detector chassis, an X-ray machine and a fluorescence detector are installed inside. The operating temperatures of the X-ray machine and the fluorescence detector are strictly required. At the same time, it is required that there is an optical path opening at the bottom of the fluorescence detector chassis, and the lens of the fluorescence detector cannot be contaminated with dust. The fluorescence detector chassis needs to prevent dust inside the box while the box body has an opening. Methods for cooling and heating the chassis include installing a fan, a water cooler, a heater, or installing an air conditioner, etc. Dust prevention is achieved by installing an air filter, positive pressure dust prevention, etc. For fluorescence detection equipment, its volume is small and its capacity is small. For the method of installing temperature control equipment such as an air conditioner, the structure of the fluorescence detection equipment is complex, the installation space is limited, and the cost of installing temperature control equipment such as an air conditioner is high. At the same time, the dust prevention effect is poor. Summary of the Utility Model

[0003] To overcome the problems existing in the related art, an exemplary embodiment of the present disclosure provides a temperature control system for a fluorescence detector chassis, including: a fluorescence detector chassis for installing a detection device to perform fluorescence detection; the fluorescence detector chassis is provided with an air inlet hole for receiving gas provided by an external gas source; a temperature control device, including: one or more vortex tubes and a solenoid valve; the vortex tube is used to receive the gas provided by the external gas source and output high-temperature gas and low-temperature gas; the solenoid valve is used to control the high-temperature gas or the low-temperature gas to enter the fluorescence detector chassis through the air inlet hole.

[0004] In some embodiments, the fluorescence detector chassis is provided with an optical path opening for the optical path of the detection device to pass through.

[0005] In some embodiments, the temperature control device includes one vortex tube, and the vortex tube includes a first outlet for outputting the high-temperature gas and a second outlet for outputting the low-temperature gas. The first outlet is used to input the high-temperature gas to the air inlet hole, and the second outlet is used to input the low-temperature gas to the air inlet hole.

[0006] In some embodiments, the temperature control device includes a first solenoid valve and a second solenoid valve; the input end of the first solenoid valve is connected to the first outlet, and one output end of the first solenoid valve is connected to the air inlet hole; the input end of the second solenoid valve is connected to the second outlet, and one output end of the second solenoid valve is connected to the air inlet hole.

[0007] In some embodiments, the temperature control device includes a first vortex tube and a second vortex tube. The first vortex tube includes a first outlet for outputting the high-temperature gas, and the second vortex tube includes a second outlet for outputting the low-temperature gas. The first outlet of the first vortex tube is used to input the high-temperature gas into the air inlet hole, and the second outlet of the second vortex tube is used to input the low-temperature gas into the air inlet hole.

[0008] In some embodiments, the temperature control device includes a third solenoid valve and a fourth solenoid valve. The input end of the third solenoid valve is connected to the external gas source, and the output end of the third solenoid valve is connected to the input end of the first vortex tube. The input end of the fourth solenoid valve is connected to the external gas source, and the output end of the fourth solenoid valve is connected to the input end of the second vortex tube.

[0009] In some embodiments, the temperature control device includes one or more of the following thermometers: a first thermometer, which communicates with the air inlet hole and is used to determine the temperature of the gas entering the air inlet hole; a second thermometer, which is arranged at the input end of the vortex tube and is used to determine the temperature of the gas entering the vortex tube; a third thermometer, which is arranged inside the fluorescence detector chassis and is used to determine the temperature of the gas inside the fluorescence detector chassis.

[0010] In some embodiments, the temperature control device includes a pressure reducing valve, which communicates with the air inlet hole and is used to adjust the pressure of the gas entering the air inlet hole.

[0011] In some embodiments, the fluorescence detector chassis includes a commutator plate, which is arranged inside the fluorescence detector chassis, faces the air inlet hole, and is used to guide the gas entering from the air inlet hole to different directions inside the fluorescence detector chassis.

[0012] In some embodiments, the fluorescence detector chassis includes a wind distribution plate, which is arranged inside the fluorescence detector chassis, is adjacent to the air inlet hole, and the wind distribution plate is provided with a plurality of air outlet holes for making the gas inside the fluorescence detector chassis evenly distributed.

[0013] In a second aspect, the present disclosure also provides a fluorescence detection device, including: the fluorescence detector chassis temperature control system according to any one of the foregoing embodiments; a detection device, including an optical machine and a detector, which are arranged inside the fluorescence detector chassis.

[0014] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure.

[0015] According to an exemplary embodiment of the present disclosure, through a temperature control device including a vortex tube and a solenoid valve, the temperature inside the fluorescence detector chassis can be regulated. The gas provided by the external gas source is heated and cooled by the vortex tube, and the heated high-temperature gas or cooled low-temperature gas is transmitted to the fluorescence detector chassis through the solenoid valve via the air inlet hole, so that the gas inside the fluorescence detector chassis is heated or cooled, and the temperature inside the fluorescence detector chassis can be adjusted. The volume of the vortex tube is small, which is convenient for installation and can save installation space. The overall structure of the temperature control device is simple, the cost is low, the temperature regulation effect is good, and it has better cost performance. In the present disclosure, the method of regulating the inside of the fluorescence detector chassis with the high-temperature gas or low-temperature gas processed by the vortex tube can keep a positive pressure environment inside the fluorescence detector chassis by blowing the gas into it, thus preventing dust from entering the fluorescence detector chassis and having a better dust-proof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present disclosure can be better understood by describing exemplary embodiments thereof in conjunction with the accompanying drawings, in which:

[0017] Figure 1 is a schematic structural diagram of a temperature control system for a fluorescence detector chassis shown according to an exemplary embodiment of the present disclosure;

[0018] Figure 2 is a three-dimensional view of a fluorescence detector chassis shown according to an exemplary embodiment of the present disclosure;

[0019] Figure 3 is a schematic structural diagram of a temperature control device shown according to an exemplary embodiment of the present disclosure;

[0020] Figure 4 is a three-dimensional view of a fluorescence detector chassis shown according to another exemplary embodiment of the present disclosure;

[0021] Figure 5 is a schematic structural diagram of a temperature control system for a fluorescence detector chassis shown according to another exemplary embodiment of the present disclosure;

[0022] Figure 6 is a schematic structural diagram of a temperature control system for a fluorescence detector chassis shown according to another exemplary embodiment of the present disclosure;

[0023] Figure 7 is a schematic structural diagram of a fluorescence detector chassis shown according to another exemplary embodiment of the present disclosure;

[0024] Figure 8 is a three-dimensional view of a fluorescence detector chassis shown according to another exemplary embodiment of the present disclosure;

[0025] Figure 9is a perspective view of a commutation plate shown according to another exemplary embodiment of the disclosure;

[0026] Figure 10 is a schematic structural view of an air distribution plate shown according to another exemplary embodiment of the disclosure. Detailed implementation manners

[0027] The following will describe the detailed implementation manners of the present disclosure. It should be noted that during the specific description of these implementation manners, for the sake of concise description, this specification cannot describe all features of the actual implementation manners in detail. It should be understood that during the actual implementation of any implementation manner, just as in the process of any engineering project or design project, in order to achieve the specific goals of the developer and to meet system-related or business-related restrictions, various specific decisions are often made, and these will also change from one implementation manner to another. In addition, it can also be understood that although the efforts made during such a development process may be complex and lengthy, for those of ordinary skill in the art related to the content of the present disclosure, some design, manufacturing, or production changes based on the technical content disclosed in the present disclosure are only conventional technical means and should not be understood as the content of the present disclosure being insufficient.

[0028] Unless otherwise defined, the technical terms or scientific terms used in the claims and the specification should have the ordinary meanings understood by those of ordinary skill in the art within the technical field to which the present disclosure belongs. The "first", "second" and similar terms used in the specification and claims of this utility model patent application do not indicate any order, quantity or importance, but are only used to distinguish different components. The terms such as "a" or "one" do not indicate a quantity limitation, but indicate that there is at least one. The terms such as "comprising" or "including" mean that the elements or objects appearing before "comprising" or "including" cover the elements or objects listed after "comprising" or "including" and their equivalent elements, and do not exclude other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, nor are they limited to direct or indirect connections.

[0029] To overcome the problems existing in the related art, an exemplary embodiment of the present disclosure provides a temperature control system for a fluorescence detector chassis, as Figure 1 shown, which may include: a fluorescence detector chassis 10 and a temperature control device 20.

[0030] The fluorescence detector chassis 10 is used to install a detection device for fluorescence detection; the fluorescence detector chassis 10 is provided with an air inlet hole 11 for receiving the gas provided by an external gas source. As Figure 1As shown, the fluorescence detector chassis 10 can be a hollow housing. The detection device can include an optical machine 31 for fluorescence detection and a detector 32. The optical machine 31 and the detector 32 can be arranged inside the fluorescence detector chassis 10, and the optical machine 31 can be an X-ray optical machine. The fluorescence detector chassis 10 can be composed of a box body, a box cover 15, fixing screws 16 for connecting the box body and the cover, and a sealing strip 17 for closing the gap between the box body and the box cover 15. The box body of the fluorescence detector chassis 10 can be a sheet metal box. An air inlet hole 11 can be opened at the top of the box body of the fluorescence detector chassis 10. The air inlet hole 11 can be opened at any position of the box body of the fluorescence detector chassis 10, such as Figure 2 As shown, the air inlet hole 11 can be opened at the top of the box body of the fluorescence detector chassis 10. The gas provided by the external gas source can enter the inside of the fluorescence detector chassis 10 through the air inlet hole 11 opened by the fluorescence detector chassis 10, so that the temperature inside the fluorescence detector chassis 10 can be regulated by the gas provided by the external gas source.

[0031] The temperature control device 20 can include: one or more vortex tubes 21, solenoid valves; the vortex tubes 21 are used to receive the gas provided by the external gas source and output high-temperature gas and low-temperature gas; the solenoid valves are used to control the high-temperature gas or the low-temperature gas to enter the fluorescence detector chassis 10 through the air inlet hole 11. Such as Figure 3As shown, the temperature control device 20 may include one or more vortex tubes 21. Each vortex tube 21 can process the gas it receives and output high-temperature gas and low-temperature gas respectively. The vortex tube 21 can be set at any position of the fluorescence detection device. The vortex tube 21, the solenoid valve 22 and the fluorescence detector chassis 10 can be connected through air pipes. The gas input end of the vortex tube 21 can be connected to an external gas source to receive the gas provided by the external gas source. The vortex tube 21 can process the gas input into it and output high-temperature gas and low-temperature gas respectively, so that the high-temperature gas or the low-temperature gas flows from the air inlet hole 11 to the fluorescence detector chassis 10. The vortex tube 21 can be composed of a nozzle, a vortex chamber, a separation orifice plate and cold and hot end tubes. The gas provided by the external gas source can be compressed gas. The vortex tube 21 causes the gas provided by the external gas source to expand in the nozzle and enter the vortex tube 21 at a very high speed along the tangential direction. When the air flow rotates at a high speed in the vortex tube 21, it can be separated into two parts of air flow with unequal temperatures after vortex transformation. The gas at the outer layer part inside the vortex tube 21 has a higher temperature, and the high-temperature gas can flow from the vortex tube 21 to the air inlet hole 11. The gas at the central part of the vortex tube 21 has a lower temperature, and the low-temperature gas can flow through the vortex tube 21 to the air inlet hole 11. The best refrigeration effect or heating effect can be obtained by adjusting the cold air ratio, so that the temperature of the gas blown out by the vortex tube 21 can reach the required temperature. The cold air ratio can be the ratio of the air output volume of the low-temperature gas of the vortex tube 21 to the total air inlet volume. Vortex tubes 21 of different specifications can adapt to different situations, with different air intake flows and different temperature adjustment capabilities. In some embodiments, the standard air intake flow of the vortex tube 21 is 0.43m 3 / min, i.e., 7.17 L / s. When the air source pressure is 6.9 bar, the cold air ratio of the vortex tube 21 is set to 80%. The air volume of the low-temperature gas output by the vortex tube 21 is 5.7 L / s. The gas is transported from the external air source to the vortex tube 21. The temperature of the low-temperature gas output by the vortex tube 21 can drop by about 30 °C compared with the gas provided by the external air source. When the cold air ratio is set to 20%, the air volume of the high-temperature gas output by the vortex tube 21 is 5.7 L / s. The gas is transported from the external air source to the vortex tube 21. The temperature of the high-temperature gas output by the vortex tube 21 rises by about 14 °C compared with the gas provided by the external air source. By adjusting the cold air ratio, the vortex tube 21 of this model can achieve a gas flow rate of 5.7 L / s, with a gas outlet temperature drop of 30 °C or a temperature rise of 14 °C. For the fluorescence detector chassis 10 with a relatively small capacity, the vortex tube 21 of this type can achieve a ventilation rate of nearly once per second, keeping the ambient temperature inside the fluorescence detector chassis 10 basically at the inlet air temperature. The solenoid valve can be set between the external air source and the vortex tube 21, or it can also be set between the vortex tube 21 and the air inlet hole 11 of the fluorescence detector chassis 10, so that the solenoid valve can control the on-off of the supply of high-temperature gas or low-temperature gas to the fluorescence detector chassis 10. It can control the on-off of the solenoid valve according to the ambient temperature and the working temperature required by the detection device for fluorescence detection, so as to selectively transfer high-temperature gas or low-temperature gas into the optical chassis 10, heating or cooling the inside of the optical chassis 10 to the required temperature.

[0032] Through the temperature control system of the fluorescence detector chassis in this embodiment, the temperature of the fluorescence detector chassis 10 of the fluorescence detection device can be controlled by the temperature control device 20. Through the vortex tube 21 in the temperature control device 20, the gas provided by the external air source can be heated or cooled. According to the temperature adjustment requirement of the optical chassis 10, by connecting the solenoid valve, the heated or cooled gas is transported to the fluorescence detector chassis 10, thereby realizing the control of the internal temperature of the fluorescence detector chassis 10 and ensuring that the optical machine 31 and the detector 32 inside the fluorescence detector chassis 10 operate normally. Moreover, the volume of the vortex tube 21 is small, which can save space and is convenient for installation. The overall structure of the temperature control device 20 is simple, the cost is low, it has better cost performance, and the temperature adjustment effect is better. And by blowing gas into the fluorescence detector chassis through the vortex tube, a positive pressure environment can be maintained inside the fluorescence detector chassis, thus preventing dust from entering the fluorescence detector chassis through the holes on the surface of the optical chassis, such as the optical path opening, and having a better dust-proof effect.

[0033] In some embodiments, such as Figure 2 、 Figure 4As shown in the figure, the fluorescence detector chassis 10 may be provided with an optical path opening 12 for the optical path of the detection device to pass through. Since there should be no obstacles in the entire optical path from the optical machine 31 irradiating the sample to the detector 32 receiving the fluorescence during the fluorescence detection process by the fluorescence detection device, an optical path opening 12 may be provided on the surface of the optical chassis 10. The optical path opening 12 is a through hole, and the shape and size of the optical path opening 12 may be determined according to the specifications of the optical machine 31 and the detector 32 to ensure that there is no obstruction in the optical path from the optical machine 31 irradiating the sample to the detector 32 receiving the fluorescence. As Figure 2 shown, the optical path opening may be provided at the bottom of the fluorescence detector chassis. Since the lens of the fluorescence detection device cannot be contaminated with dust, dust prevention inside the fluorescence detector chassis 10 is required. Since the optical path opening 12 is provided at the bottom of the fluorescence detector chassis 10 and the air inlet hole 11 is provided at the top of the fluorescence detector chassis 10, gas can be conveyed into the optical chassis 10 through the air inlet hole 11 to make the inside of the fluorescence detector chassis 10 under positive pressure, and the gas will finally be blown out from the optical path opening 12 at the bottom of the fluorescence detector chassis 10, which can achieve the dust prevention effect and prevent dust from entering the inside of the optical chassis 10 through the optical path opening 12. By providing the optical path opening 12 at the bottom of the fluorescence detector chassis 10, it is possible to ensure that there is no obstruction in the entire optical path from the optical machine 31 irradiating the sample to the detector 32 receiving the fluorescence while achieving the dust prevention effect. The structure is simple and there is no need to additionally install dust prevention devices, which can save the space of the fluorescence detector chassis 10, save costs, and have a good dust prevention effect.

[0034] In some embodiments, such as Figure 5As shown, the temperature control device 20 may include a vortex tube 21. The vortex tube 21 includes a first outlet for outputting high-temperature gas and a second outlet for outputting low-temperature gas. The first outlet is used to input high-temperature gas into the air inlet hole 11, and the second outlet is used to input low-temperature gas into the air inlet hole 11. The temperature control device 20 may include a vortex tube 21. The inlet end of the vortex tube 21 may be connected to an external gas source for receiving the gas provided by the external gas source. The first outlet of the vortex tube 21 may be connected to the air inlet hole 11 for inputting high-temperature gas into the air inlet hole 11; the second outlet of the vortex tube 21 may be connected to the air inlet hole 11 for inputting low-temperature gas into the air inlet hole 11. The transmission of high-temperature gas or low-temperature gas between the vortex tube 21 and the air inlet hole 11 can be controlled by an electromagnetic valve. In some embodiments, the fluorescence detection device is located outdoors, where the environmental temperature changes greatly. It is necessary to control the temperature inside the fluorescence detector to keep the temperature stable at the operating temperatures of the optical engine 31 and the detector 32. Among them, the operating temperatures of the optical engine 31 and the detector 32 are generally between 0 degrees Celsius and 50 degrees Celsius. Therefore, according to the environmental temperature and the operating temperatures of the optical engine 31 and the detector 32, it can be determined whether the fluorescence detector chassis 10 needs to be heated or cooled. Thus, by controlling the on / off of the electromagnetic valve, the on / off of the gas flow path for the first outlet and the second outlet to transport gas to the air inlet hole 11 can be controlled, so as to select high-temperature gas or low-temperature gas to be input into the fluorescence detector chassis 10. Through a vortex tube 21 and two electromagnetic valves corresponding to the first outlet and the second outlet of the vortex tube 21, it is possible to quickly heat up or cool down the gas transported by the external gas source, and input the high-temperature gas or low-temperature gas into the fluorescence detector chassis 10 to heat up or cool down its interior. There is a high gas temperature adjustment efficiency, so that the interior of the fluorescence detector can be quickly heated up or cooled down, and there is a high temperature control accuracy. The vortex tube 21 is small in volume and can effectively save space.

[0035] In some embodiments, such as Figure 5 As shown, the temperature control device 20 may include a first electromagnetic valve 221 and a second electromagnetic valve 222; the input end of the first electromagnetic valve 221 is connected to the first outlet, and one output end of the first electromagnetic valve 221 is connected to the air inlet hole 11; the input end of the second electromagnetic valve 222 is connected to the second outlet, and one output end of the second electromagnetic valve 222 is connected to the air inlet hole 11. The first electromagnetic valve 221 may be a two-position five-way electromagnetic valve. The input end of the first electromagnetic valve 221 may be connected to the first outlet of the vortex tube 21 for receiving the high-temperature gas blown out from the first interface of the vortex tube 21. One output end of the first electromagnetic valve 221 may be connected to the air inlet hole 11, capable of transporting the gas to the fluorescence detector chassis 10. The other output end of the first electromagnetic valve 221 may be connected outside the fluorescence detector chassis 10, so as to blow the high-temperature gas outside the fluorescence detector chassis 10 when the interior of the fluorescence detector chassis 10 does not need to be heated. Such asFigure 5 As shown, the P end of the first solenoid valve 221 is connected to the gas circuit. When the inside of the fluorescence detector chassis 10 needs to be cooled, the high-temperature gas blown out from the first outlet is transported from the P end of the first solenoid valve 221 to the B end, and the high-temperature gas is blown out of the fluorescence detector chassis 10. When the inside of the fluorescence detector chassis 10 needs to be heated, the high-temperature gas blown out from the first outlet is transported from the P end of the first solenoid valve 221 to the A end, and the high-temperature gas is transported to the air inlet hole 11. The second solenoid valve 222 can be a two-position five-way solenoid valve. The input end of the second solenoid valve 222 can be connected to the second outlet of the vortex tube 21 for receiving the low-temperature gas blown out from the second interface of the vortex tube 21. One output end of the second solenoid valve 222 can be connected to the air inlet hole 11, capable of transporting the gas to the fluorescence detector chassis 10. The other output end of the second solenoid valve 222 can be connected to the outside of the fluorescence detector chassis 10, so that when the inside of the fluorescence detector chassis 10 does not need to be cooled, the low-temperature gas is blown out of the fluorescence detector chassis 10. As Figure 5 shown, the P end of the second solenoid valve 222 is connected to the gas circuit. When the inside of the fluorescence detector chassis 10 needs to be heated, the low-temperature gas blown out from the second outlet is transported from the P end of the second solenoid valve 222 to the B end, and the low-temperature gas is blown out of the fluorescence detector chassis 10. When the inside of the fluorescence detector chassis 10 needs to be cooled, the low-temperature gas blown out from the second outlet is transported from the P end of the second solenoid valve 222 to the A end, and the low-temperature gas is transported to the air inlet hole 11. Through the first solenoid valve 221 and the second solenoid valve 222, it is possible to energize and de-energize the first solenoid valve 221 and the second solenoid valve 222 according to the cooling and heating requirements of the fluorescence detector chassis 10, so that gases of different temperatures can be transported into the fluorescence detector chassis 10 according to the requirements, and the temperature of the fluorescence detector chassis 10 can be regulated quickly and conveniently, with a better temperature control effect.

[0036] In some embodiments, such as Figure 6As shown, the temperature control device 20 may include a first vortex tube 211 and a second vortex tube 212. The first vortex tube 211 may include a first outlet for outputting high-temperature gas, and the second vortex tube 212 may include a second outlet for outputting low-temperature gas. The first outlet of the first vortex tube 211 may be used to input high-temperature gas into the air inlet hole 11, and the second outlet of the second vortex tube 212 may be used to input low-temperature gas into the air inlet hole 11. In some embodiments, the temperature control device 20 may be provided with two vortex tubes. The first vortex tube 211 may be used to heat the gas delivered by an external gas source, and the second vortex tube 212 may be used to cool the gas delivered by the external gas source. The first outlet of the first vortex tube 211 may be connected to the air inlet hole 11 to deliver the high-temperature gas that has been heated by the first vortex tube 211 to the air inlet hole 11. The first vortex tube 211 may further include other gas outlets that may be connected outside the fluorescence detector chassis 10 to deliver the low-temperature gas that has been cooled by the first vortex tube 211 outside the fluorescence detector chassis 10. The second outlet of the second vortex tube 212 may be connected to the air inlet hole 11 to deliver the low-temperature gas that has been cooled by the second vortex tube 212 to the air inlet hole 11. The second vortex tube 212 may further include other gas outlets that may be connected outside the fluorescence detector chassis 10 to deliver the high-temperature gas that has been heated by the second vortex tube 212 outside the fluorescence detector chassis 10. In some embodiments, since the temperature changes greatly in summer and winter, for the fluorescence detection equipment installed outdoors, in most cases, it is only necessary to cool the gas inside the fluorescence detector chassis 10 in summer and heat the gas inside the fluorescence detector chassis 10 in winter to ensure the normal operation of the fluorescence detection equipment in summer and winter. Two different cold air ratios may be preset for the vortex tubes in the temperature control device 20 in summer and winter, so that both the cold air ratio of the vortex tube in summer and the cold air ratio of the vortex tube in winter can ensure the temperature required for the operation of the optical machine 31 and the detector 32. Set the cold air ratio of the first vortex tube 211 as the cold air ratio of the vortex tube in winter, and set the cold air ratio of the second vortex tube 212 as the cold air ratio of the vortex tube in summer. Thereby, it is possible to reduce the manual debugging of the cold air ratio of the vortex tube. Only need to adjust the cold air ratios of the first vortex tube 211 and the second vortex tube 212 well when installing the fluorescence detection equipment. Thereafter, the gas output of the first vortex tube 211 and the second vortex tube 212 can be directly controlled by solenoid valves respectively, and the temperature control of the gas blown into the fluorescence detector chassis 10 can be completed. Thereby, the frequency of manually adjusting the cold air ratio of the vortex tube can be reduced, and the labor cost can be effectively reduced. According to the method of this embodiment, the gas input by an external gas source can be heated and cooled by two vortex tubes respectively, so that the heating gas path and the cooling gas path are independent of each other. The heating and cooling are performed by different vortex tubes, which can reduce the frequency of manual debugging of the cold air ratio and is convenient for adjustment.In some cases, the first vortex tube 211 and the second vortex tube 212 can be turned on simultaneously, and the hot gas blown out by the first vortex tube 211 is combined with the cold gas blown out by the second vortex tube 212 to achieve more precise control of the gas temperature input to the optical chassis 10.

[0037] In some embodiments, as Figure 6 shown, the temperature control device 20 may include a third solenoid valve 223 and a fourth solenoid valve 224; the input end of the third solenoid valve 223 is connected to an external gas source, and the output end of the third solenoid valve 223 is connected to the input end of the first vortex tube 211; the input end of the fourth solenoid valve 224 is connected to an external gas source, and the output end of the fourth solenoid valve 224 is connected to the input end of the second vortex tube 212. The third solenoid valve 223 may be a two-position three-way solenoid valve. The input end of the third solenoid valve 223 can be connected to an external gas source for receiving the gas delivered by the external gas source. The output end of the third solenoid valve 223 can be connected to the input end of the first vortex tube 211. In the case where it is necessary to raise the temperature of the fluorescence detector chassis 10, the gas delivered by the external gas source can be delivered to the first vortex tube 211 through the third solenoid valve 223, so that the first vortex tube 211 can heat the gas delivered by the external gas source and blow it into the fluorescence detector chassis 10 through the first outlet of the first vortex tube 211 via the air inlet hole 11, thereby raising the temperature inside the fluorescence detector chassis 10. As Figure 6 shown, in the case where it is not necessary to raise the temperature of the optical chassis 10, the P end of the third solenoid valve 223 is connected to the external gas source, and the third solenoid valve 223 is in a power-off closed state, and the gas cannot be delivered to the first vortex tube 211. In the case where it is necessary to raise the temperature of the fluorescence detector chassis 10, the third solenoid valve 223 is powered on and opened. The P end of the third solenoid valve 223 is connected to the external gas source, and the A end is connected to the input end of the first vortex tube 211, so that the gas can enter the third solenoid valve 223 from the P end of the third solenoid valve 223 and be blown into the first vortex tube 211 from the A end, and then the gas is heated by the first vortex tube 211 and blown into the fluorescence detector chassis 10 from the first outlet of the first vortex tube 211. The fourth solenoid valve 224 may be a two-position three-way solenoid valve. The input end of the fourth solenoid valve 224 can be connected to an external gas source for receiving the gas delivered by the external gas source. The output end of the fourth solenoid valve 224 can be connected to the input end of the second vortex tube 212. In the case where it is necessary to lower the temperature of the fluorescence detector chassis 10, the gas delivered by the external gas source can be delivered to the second vortex tube 212 through the fourth solenoid valve 224, so that the second vortex tube 212 can cool the gas delivered by the external gas source and blow it into the fluorescence detector chassis 10 through the second outlet of the second vortex tube 212 via the air inlet hole 11, thereby lowering the temperature inside the fluorescence detector chassis 10. As Figure 6As shown, when there is no need to cool the fluorescence detector chassis 10, the P end of the fourth solenoid valve 224 is connected to an external gas source, and the fourth solenoid valve 224 is in a power-off and closed state, so that gas cannot be transported to the second vortex tube 212. When it is necessary to cool the fluorescence detector chassis 10, the fourth solenoid valve 224 is powered on and opened. The P end of the fourth solenoid valve 224 is connected to an external gas source, and the A end is connected to the input end of the second vortex tube 212, enabling gas to enter the fourth solenoid valve 224 from the P end of the fourth solenoid valve 224 and be blown into the second vortex tube 212 from the A end. Then, the gas is cooled by the second vortex tube 212 and blown into the fluorescence detector chassis 10 from the second outlet of the second vortex tube 212. Through the third solenoid valve 223 and the fourth solenoid valve 224, according to the heating and cooling requirements of the fluorescence detector chassis 10, by turning the third solenoid valve 223 and the fourth solenoid valve 224 on and off, the selection of the first vortex tube 211 and the second vortex tube 212 can be realized. According to the heating and cooling requirements, the corresponding solenoid valve is connected, so that the corresponding vortex tube works to heat or cool the gas, separating the heating gas path from the cooling gas path, which has high safety and can quickly and conveniently regulate the temperature of the fluorescence detector chassis 10, with better temperature control effect.

[0038] In some embodiments, as Figure 5 、 Figure 6 shown, the temperature control device 20 may include: a first thermometer 23, which is connected to the air inlet hole 11 and is used to determine the temperature of the gas entering the air inlet hole 11. The first thermometer 23 may be disposed between the outlet end of the vortex tube 21 and the air inlet hole 11 of the fluorescence detector chassis 10, and may be used to determine the temperature of the gas released from the first outlet end and the second outlet end of the vortex tube 21, capable of real-time monitoring the temperature of the gas entering the air inlet hole 11, facilitating the adjustment of the cold air ratio of the vortex tube 21 according to the temperature shown by the first thermometer 23 to ensure that the temperature of the gas entering the fluorescence detector chassis 10 from the air inlet hole 11 can meet the heating or cooling requirements of the fluorescence detector chassis 10. The first thermometer 23 may be connected to the air inlet hole 11 and may be disposed close to the air inlet hole 11. Since in the gas path, the high-temperature gas path and the low-temperature gas path connected to the first outlet and the second outlet of the vortex tube 21 are independent of each other and converge before entering the air inlet hole 11, therefore, the first thermometer 23 may be disposed after the gas path convergence point and before the air inlet hole 11 to determine the temperature of the gas entering the air inlet hole 11. In some cases, if a solenoid valve or the vortex tube 21 fails, resulting in high-temperature gas or low-temperature gas being wrongly transported to the air inlet hole 11 of the gas path, the faulty gas path can be determined by observing the temperature shown by the first thermometer 23. Through the first thermometer 23, accurate adjustment of the temperature of the gas transported to the air inlet hole 11 can be achieved, improving the accuracy of temperature control of the fluorescence detector chassis 10.

[0039] In some embodiments, asFigure 5 , Figure 6 As shown in Figure 6 , the temperature control device 20 may further include: a second thermometer 24 disposed at the input end of the vortex tube 21 for determining the temperature of the gas entering the vortex tube 21. The second thermometer 24 may be disposed at the input end of the vortex tube 21 and connected to an external gas source, and can determine the temperature of the gas released by the external gas source to the vortex tube 21. According to the temperature of the gas at the input end of the vortex tube 21 shown by the second thermometer 24 and combined with the temperature of the gas transported by the vortex tube 21 to the air inlet hole 11 shown by the first thermometer 23, the temperature of the gas at the input end and the output end of the vortex tube 21 can be comprehensively considered to determine the temperature increase and decrease amplitudes of the gas by the vortex tube 21, so as to more accurately adjust the cold air ratio of the vortex tube 21, and can accurately adjust the temperature of the gas transported to the air inlet hole 11, and improve the accuracy of temperature control of the fluorescence detector chassis 10.

[0040] In some embodiments, the temperature control device 20 may further include: a third thermometer disposed inside the fluorescence detector chassis 10 for determining the temperature of the gas inside the fluorescence detector chassis 10. The third thermometer may be disposed inside the fluorescence detector chassis 10 and can monitor the temperature inside the fluorescence detector chassis 10 in real time, and can more intuitively determine whether the temperature inside the fluorescence detector chassis 10 can keep the optical machine 31 and the detector 32 in a normal operating state. According to the temperature inside the fluorescence detector chassis 10 shown by the third thermometer, the cold air ratio of the vortex tube 21 can be adjusted, so as to obtain a more accurate and intuitive temperature inside the fluorescence detector chassis 10, can accurately adjust the cold air ratio of the vortex tube 21, can accurately adjust the temperature of the gas transported to the air inlet hole 11, and improve the accuracy of temperature control of the fluorescence detector chassis 10.

[0041] In some embodiments, such as Figure 5 , Figure 6As shown, the temperature control device 20 may include a pressure reducing valve 25, which is communicated with the air inlet hole 11 and is used to adjust the gas pressure entering the air inlet hole 11. The temperature control device 20 may include a pressure reducing valve 25 communicated with the air inlet hole 11. The pressure reducing valve 25 may be arranged at a position close to the air inlet hole 11 in the gas path. Since the high-temperature gas or low-temperature gas released by the vortex tube 21 is released to the air inlet hole 11 through the solenoid valve and has a relatively large gas pressure, and the gas is transported from the temperature control device 20 to the inside of the fluorescence detector chassis 10 through the air inlet hole 11. In the case of excessive gas pressure, it may cause equipment such as the optical machine 31 and the detector 32 in the fluorescence detector chassis 10 to be damaged by the high-pressure gas. Therefore, a pressure reducing valve 25 may be provided to reduce the high-pressure gas released by the vortex tube 21 to a suitable pressure to ensure the stability of the gas pressure, thereby maintaining the overall stability inside the fluorescence detector chassis 10, protecting the equipment inside the fluorescence detector chassis 10, and extending the service life of the fluorescence detector chassis 10 and its internal equipment. And through the pressure reducing valve 25, it can be ensured that the gas enters the fluorescence detector chassis 10 from the air inlet hole 11 at a suitable pressure, which can improve the working efficiency of the temperature control device 20 for heating and cooling and reduce energy waste.

[0042] In some embodiments, as Figure 7 , Figure 8 shown, the fluorescence detector chassis 10 may include a commutator plate 13, which is arranged inside the fluorescence detector chassis 10 and faces the air inlet hole 11, and is used to guide the gas entering from the air inlet hole to different directions inside the fluorescence detector chassis. The commutator plate 13 may be welded at a position inside the fluorescence detector chassis 10 close to the air inlet hole 11. The commutator plate may face the air inlet hole 11. The commutator plate may be formed with a concave portion that is concave in the direction away from the air inlet hole 11. The concave portion may include an inclined edge that extends in the direction of the air inlet hole 11. The highest point at the top of the inclined edge may extend along the length direction or the width direction of the fluorescence detector chassis 10 to form a commutation platform. There may be a certain distance between the top surface of the commutation platform and the inner wall of the fluorescence detector chassis 10 as the air outlet gap 131, so that the gas entering the fluorescence detector chassis from the air inlet hole 11 is blown into the concave portion and flows along the inclined edge of the concave portion to the air outlet gap 131, and finally flows from the air outlet gap to different directions inside the fluorescence detector chassis 10. The commutator plate 13 may be integrally bowl-shaped, and the gas entering from the air inlet hole 11 is blown into the bowl and then flows out of the bowl mouth into the box. The commutator plate 13 may also be integrally groove-shaped, as Figure 9As shown, the commutation plate 13 can be a metal plate with a V-shaped longitudinal section. Among them, the tops of the two V-shaped inclined sides of the commutation plate 13 can extend horizontally to form a commutation platform. At the highest point of the top of the commutation plate 13, that is, at the commutation platform of the commutation plate 13, there can be a certain distance from the inner wall surface of the fluorescence detector chassis 10 as the air outlet gap 131. Since the high-temperature gas for heating and the low-temperature gas for cooling are blown into the interior of the fluorescence detector chassis 10 through the air inlet hole 11 at the top of the fluorescence detector chassis 10, the ventilation volume at the middle position inside the fluorescence detector chassis 10 corresponding to the air inlet hole 11 is relatively large, while the ventilation volume on both sides of the air inlet hole 11 along the length direction of the fluorescence detector chassis 10 inside the fluorescence detector chassis 10 is relatively small. The gas flow velocity inside the fluorescence detector chassis 10 is uneven, which easily leads to uneven gas pressure inside the fluorescence detector chassis 10 and uneven gas temperature inside the fluorescence detector chassis 10. It enables the position in the middle of the interior of the fluorescence detector chassis 10 to be heated or cooled to an appropriate temperature, while the temperature rise or fall amplitude of the positions on both sides inside the fluorescence detector chassis 10 is relatively small and may not reach the appropriate temperature. Moreover, the gas directly blowing onto the optical machine 31 and the detector 32 inside the fluorescence detector chassis 10 easily leads to a shortened service life. By setting the V-shaped commutation plate 13, after the gas is blown into the fluorescence detector chassis 10 through the air inlet hole 11 at the top of the fluorescence detector chassis 10, the gas can be blocked by the V-shaped commutation plate 13 and flow along the V-shaped inclined sides of the commutation plate 13 to the commutation platform, so that the gas is blown to both ends along the length direction of the fluorescence detector chassis 10 inside the fluorescence detector chassis 10 and blown out downward through the air outlet gap 131 formed by the commutation platform and the inner wall of the fluorescence detector chassis 10. Through the commutation plate 13, the gas vertically blown into the fluorescence detector chassis 10 through the air inlet hole 11 can flow along the V-shaped inclined surface of the commutation plate 13 and flow out horizontally through the air outlet gap 131, which can make the gas blown into the interior of the fluorescence detector chassis 10 flow evenly inside the fluorescence detector chassis 10, thereby ensuring uniform control of the gas temperature inside the fluorescence detector chassis 10. And through the commutation plate 13, the speed of the gas blown into the interior of the fluorescence detector chassis 10 can be adjusted, and the shortening of the service life caused by the gas directly blowing onto the optical machine 31 and the detector 32 inside the fluorescence detector chassis 10 can be avoided, and the service life of the optical machine and the detector can be extended.

[0043] In some embodiments, such as Figure 7 、 Figure 8As shown, the fluorescence detector chassis 10 may include an air distribution plate 14, which is provided on the upper side inside the fluorescence detector chassis 10, adjacent to the air inlet hole 11. The air distribution plate 14 is provided with a plurality of air outlet holes for evenly distributing the gas inside the fluorescence detector chassis 10. The air distribution plate 14 may be a metal plate provided with a plurality of air outlet holes. The air distribution plate 14 may be provided inside the fluorescence detector chassis 10, adjacent to the air inlet hole, and fixed inside the fluorescence detector chassis 10 in a welded form. The air distribution plate 14 may be arranged parallel to the inner wall where the air inlet hole 11 is located in the fluorescence detector chassis 10. The length and width of the air distribution plate 14 may be the same as the length and width of the inner wall where the air inlet hole 11 is located in the fluorescence detector chassis 10, so that the edge of the air distribution plate 14 abuts or is welded to the inner wall of the fluorescence detector chassis 10. The air distribution plate 14 may be fixedly connected to the commutation plate 13. As Figure 10 shown, the air distribution plate 14 may be provided with a welding process port 142 for fixing the commutation plate 13 at the center in the length direction of the fluorescence detector chassis 10. The welding process port 142 may be set according to the shape of the bottom of the commutation plate 13. A horizontal welding part may be formed at the bottom of the commutation plate 13 for fixedly connecting to the air distribution plate 14 by welding. The air outlet holes 141 provided on the air distribution plate 14 may be rectangular, or may also be circular or any other shape. The air outlet holes 141 may be arranged along the width direction of the air distribution plate 14, near both ends in the length direction of the air distribution plate 14. The air outlet holes 141 may be evenly arranged along the width direction of the air distribution plate 14. Since the air inlet hole 11 of the fluorescence detector chassis 10 is located at the center of the top of the fluorescence detector chassis 10, the air volume at the central position of the fluorescence detector chassis 10 is more concentrated, while the air volume around is less than that at the central position. Therefore, the air outlet holes 141 may also be arranged more densely near both ends in the width direction of the air distribution plate 14, and the air outlet holes 141 located at the center in the width direction of the air distribution plate 14 are arranged more sparsely, so as to reduce the ventilation volume at the central position of the fluorescence detector chassis 10 and increase the ventilation volume on both sides in the width direction of the fluorescence detector chassis 10, playing a better role in air distribution. The air outlet holes 141 may also be arranged along the length direction of the air distribution plate 14, near both ends in the width direction of the air distribution plate 14. The air outlet holes 141 may be evenly arranged along the length direction of the air distribution plate 14, or the air outlet holes 141 may be arranged more densely near both ends in the length direction of the air distribution plate 14, and the air outlet holes 141 located at the center in the length direction of the air distribution plate 14 are arranged more sparsely. Thus, the ventilation volume at the central position of the fluorescence detector chassis 10 is reduced, and the ventilation volume on both sides in the length direction of the fluorescence detector chassis 10 is increased, playing a better role in air distribution. Through the air distribution plate of this embodiment, it can ensure that the gas inside the fluorescence detector chassis 10 is evenly distributed, make the temperature inside the fluorescence detector chassis 10 uniform, and achieve a better temperature control effect.

[0044] Based on the same inventive concept, as Figure 1As shown, the present disclosure provides a fluorescence detection device, which may include: a temperature control system for the fluorescence detector chassis and a detection device as described in any of the foregoing embodiments.

[0045] The temperature control system for the fluorescence detector chassis may include a fluorescence detector chassis 10 and a temperature control device 20.

[0046] The detection device may include an optical machine 31 and a detector 32. The optical machine 31 and the detector 32 may be disposed within the fluorescence detector chassis 10. The temperature control device 20 may be used to keep the optical machine 31 and the detector 32 at the temperature required for normal operation, so that the optical machine 31 and the detector 32 can continuously maintain a safe operating state. The optical machine 31 may be an X-ray optical machine. The detection device may be used for fluorescence detection. X-rays may be emitted towards the object to be measured through the optical machine 31 to excite the target element in the object to be measured, so that the object to be measured containing the target element can be excited and emit fluorescence. The fluorescence emitted by the object to be measured can be collected by the detector 32, and thus the object to be measured can be analyzed according to the fluorescence received by the detector 32. The emission end of the optical machine 31 and the receiving end of the detector 32 may be arranged facing the optical path opening, so that the X-rays emitted by the optical machine 32 towards the object to be measured can pass through the optical path opening and irradiate the object to be measured, and the fluorescence emitted by the object to be measured can pass through the optical path opening and be received by the detector 32, so that the optical paths of the optical machine 31 and the detector 32 pass through the optical path opening and there is no obstruction in the optical paths of the optical machine 31 and the detector 32. Through the fluorescence detection device provided in this embodiment, fluorescence detection can be performed on the object to be measured through the detection device including the optical machine 31 and the detector 32. The detection process is simple and has high detection accuracy. Disposing the detection device in the fluorescence detector chassis 10 can protect the detection device. Through the temperature control device 20, the detection device can be kept at the temperature required for normal operation, and it can be avoided that the operation of the fluorescence detection device is suspended or the detection device fails due to high temperature or low temperature environment, so that the fluorescence detection device can maintain a stable working state and has high working safety.

[0047] Specific terms are used in this application to describe the embodiments of this application. Such as "one embodiment", "an embodiment", and / or "some embodiments" mean a certain feature, structure, or characteristic related to at least one embodiment of this application. Therefore, it should be emphasized and noted that the "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more at different positions in this specification does not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this application can be combined appropriately.

[0048] In the context of this application, unless the context clearly indicates otherwise, words such as "a", "an", "one", and / or "the" are not intended to refer to the singular and may also include the plural. Generally speaking, the terms "comprising" and "including" merely indicate the inclusion of the steps and elements that have been expressly identified, and these steps and elements do not constitute an exclusive listing. A method or apparatus may also contain other steps or elements.

[0049] Similarly, it should be noted that, in order to simplify the presentation of the disclosure of this application and thus assist in the understanding of one or more embodiments of the application, in the foregoing description of the embodiments of this application, various features are sometimes grouped together in one embodiment, drawing, or description thereof. However, this method of disclosure does not mean that the features required by the subject matter of this application are more than those mentioned in the claims. In fact, the features of the embodiments are fewer than all the features of the individual embodiments disclosed above.

[0050] The basic concepts have been described above. Obviously, for those skilled in the art, the above disclosure is merely an example and does not constitute a limitation of this application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements, and corrections are proposed in this application, so such modifications, improvements, and corrections still fall within the spirit and scope of the embodiments of this application.

Claims

1. A fluorescence detector chassis temperature control system, comprising: A fluorescence detector chassis, used for installing a detection device for fluorescence detection; The fluorescence detector chassis is provided with an air inlet hole for receiving the gas provided by an external gas source; A temperature control device, including: one or more vortex tubes, a solenoid valve; The vortex tube is used to receive the gas provided by the external gas source and output high-temperature gas and low-temperature gas; the solenoid valve is used to control the high-temperature gas or the low-temperature gas to enter the fluorescence detector chassis through the air inlet.

2. The fluorescence detector chassis temperature control system according to claim 1, wherein: The fluorescence detector chassis is provided with an optical path opening for the optical path of the detection device to pass through.

3. The fluorescence detector chassis temperature control system according to claim 1, wherein: The temperature control device includes a vortex tube, which includes a first outlet for outputting the high-temperature gas and a second outlet for outputting the low-temperature gas. The first outlet is used to input the high-temperature gas to the air inlet, and the second outlet is used to input the low-temperature gas to the air inlet.

4. The fluorescence detector chassis temperature control system according to claim 3, wherein: The temperature control device includes a first solenoid valve and a second solenoid valve; an input end of the first solenoid valve is connected to the first outlet, and an output end of the first solenoid valve is connected to the air inlet; an input end of the second solenoid valve is connected to the second outlet, and an output end of the second solenoid valve is connected to the air inlet.

5. The fluorescence detector chassis temperature control system according to claim 1, wherein: The temperature control device includes a first vortex tube and a second vortex tube. The first vortex tube includes a first outlet for outputting the high-temperature gas, and the second vortex tube includes a second outlet for outputting the low-temperature gas. The first outlet of the first vortex tube is used to input the high-temperature gas to the air inlet, and the second outlet of the second vortex tube is used to input the low-temperature gas to the air inlet.

6. The fluorescence detector chassis temperature control system according to claim 5, wherein: The temperature control device includes a third solenoid valve and a fourth solenoid valve; the input end of the third solenoid valve is connected to the external air source, and the output end of the third solenoid valve is connected to the input end of the first vortex tube; the input end of the fourth solenoid valve is connected to the external air source, and the output end of the fourth solenoid valve is connected to the input end of the second vortex tube.

7. The fluorescence detector chassis temperature control system according to claim 1, wherein: The temperature control device includes one or more of the following thermometers: a first thermometer, connected to the air inlet, for determining the temperature of the gas entering the air inlet; a second thermometer, disposed at the input end of the vortex tube, for determining the temperature of the gas entering the vortex tube; The third thermometer is arranged inside the fluorescence detector chassis and is used to determine the gas temperature inside the fluorescence detector chassis.

8. The fluorescence detector chassis temperature control system according to claim 1, wherein: The temperature control device comprises: a pressure reducing valve connected to the air inlet and used for adjusting the pressure of the gas entering the air inlet.

9. The fluorescence detector chassis temperature control system according to claim 1, wherein: The fluorescence detector chassis includes a reversing plate, which is arranged inside the fluorescence detector chassis and is arranged toward the air inlet hole, and is used to guide the gas entering from the air inlet hole to different directions inside the fluorescence detector chassis.

10. The fluorescence detector chassis temperature control system according to claim 1, wherein: The fluorescence detector chassis includes an air uniformity plate, which is arranged inside the fluorescence detector chassis and adjacent to the air inlet. The air uniformity plate is provided with a plurality of air outlets for evenly distributing the gas in the fluorescence detector chassis.

11. A fluorescence detection device, comprising: The fluorescence detector chassis temperature control system according to any one of claims 1 to 10; The detection device comprises an optical machine and a detector, which are arranged in the fluorescence detector chassis.

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