CN105136670B - Light transmissive liquid with temperature incubation function composes test optics cavity - Google Patents
Light transmissive liquid with temperature incubation function composes test optics cavity Download PDFInfo
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- CN105136670B CN105136670B CN201510512349.8A CN201510512349A CN105136670B CN 105136670 B CN105136670 B CN 105136670B CN 201510512349 A CN201510512349 A CN 201510512349A CN 105136670 B CN105136670 B CN 105136670B
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- 239000007788 liquid Substances 0.000 title claims abstract description 24
- 238000012360 testing method Methods 0.000 title claims abstract description 12
- 238000011534 incubation Methods 0.000 title 1
- 230000003287 optical effect Effects 0.000 claims abstract description 108
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 105
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 47
- 238000005485 electric heating Methods 0.000 claims abstract description 22
- 238000005259 measurement Methods 0.000 claims abstract description 19
- 238000000411 transmission spectrum Methods 0.000 claims abstract description 15
- 229910001873 dinitrogen Inorganic materials 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 5
- 239000004568 cement Substances 0.000 claims abstract description 4
- 238000009413 insulation Methods 0.000 claims description 57
- 239000004020 conductor Substances 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- 239000012774 insulation material Substances 0.000 claims description 2
- 229910000623 nickel–chromium alloy Inorganic materials 0.000 claims description 2
- 238000002474 experimental method Methods 0.000 abstract description 7
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- 238000007599 discharging Methods 0.000 abstract 1
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- 238000010586 diagram Methods 0.000 description 4
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 230000010363 phase shift Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000002235 transmission spectroscopy Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
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- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
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- 230000003595 spectral effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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Abstract
一种带有恒温功能的液体透射光谱测试用光学腔。主要目的在于提供一种带有恒温功能的用于测试液体透射光谱的光学腔。其特征在于：所述光学腔主要包括设备主体及测量部分、调温部分和氮气充入、排出及流经路径部分；直接热源是电加热管，外接电源接通后，通过电加热管加热装置内循环的氮气和导热胶泥控制装置内温度，在温控仪上设置实验所需温度，通过调温箱控制电加热管加热程度，进而达到精确控制装置内实验温度的目的。光路固定槽内可以放入不同光程比色皿，用以提高实验测量数据的可比性。本发明具有运行简单、安装方便以及材料来源广等优点。
The utility model relates to an optical cavity with a constant temperature function for liquid transmission spectrum testing. The main purpose is to provide an optical cavity with constant temperature function for testing liquid transmission spectrum. It is characterized in that: the optical cavity mainly includes the main body of the equipment, the measurement part, the temperature adjustment part, and the nitrogen gas charging, discharging and flowing path part; the direct heat source is an electric heating tube, and after the external power supply is connected, the device is heated by the electric heating tube The internal circulating nitrogen and heat-conducting cement control the temperature in the device, set the temperature required for the experiment on the temperature controller, and control the heating degree of the electric heating tube through the temperature control box, so as to achieve the purpose of accurately controlling the experimental temperature in the device. Different optical path cuvettes can be placed in the optical path fixing groove to improve the comparability of experimental measurement data. The invention has the advantages of simple operation, convenient installation, wide source of materials and the like.
Description
技术领域 technical field
本发明涉及一种应用于光学测试技术领域中在变温或恒温环境下对液体透射光谱进行测量的光学腔。 The invention relates to an optical cavity used in the technical field of optical testing to measure liquid transmission spectrum under variable temperature or constant temperature environment.
背景技术 Background technique
近些年，液体透射光谱的测量受到了广泛的关注，通过透射光谱可直接获得液体样品的透射比，以其为基础还可反演获得样品其它光谱性质参数。现阶段，将此方法可以通过污水样品透射光谱反演出较多污水指标，如化学需氧量COD，总有机碳TOC，铁、铜等重金属元素含量等，也可以测量液体碳氢燃料的重要光学参数，如衰减系数、折射率等。除此之外，透射光谱反演测量在其它液体样品上也有较多应用。由于在实验研究过程中，温度对于样品透射光谱的测量有较大的影响，而现有放入大多数光谱仪内又没有可以调节温度的设备，因此只能在常温下对样品进行光谱测量，极大的阻碍了研究的进展，尤其是液体碳氢燃料受温度影响较大，其应用过程更是涉及到高温环境，因此急需发明一种带有可控温度功能的液体透射光谱测量光学腔。 In recent years, the measurement of liquid transmission spectrum has received extensive attention. The transmittance of liquid samples can be directly obtained through transmission spectroscopy, and other spectral property parameters of the sample can also be obtained by inversion based on it. At this stage, this method can be used to invert more sewage indicators through the transmission spectrum of sewage samples, such as chemical oxygen demand COD, total organic carbon TOC, content of heavy metal elements such as iron and copper, etc., and can also measure important optical properties of liquid hydrocarbon fuels. Parameters, such as attenuation coefficient, refractive index, etc. In addition, transmission spectrum inversion measurement is also widely used in other liquid samples. In the process of experimental research, temperature has a great influence on the measurement of the transmission spectrum of the sample, and most of the existing spectrometers have no equipment that can adjust the temperature, so the spectrum measurement of the sample can only be carried out at room temperature, which is extremely difficult. This greatly hinders the progress of research, especially liquid hydrocarbon fuels are greatly affected by temperature, and its application process involves high-temperature environments. Therefore, it is urgent to invent an optical cavity for liquid transmission spectroscopy with a controllable temperature function.
发明内容 Contents of the invention
为了解决背景技术中所提到的技术问题，本发明提供一种带有恒温功能的液体透射光谱测试用光学腔，该种测试用光学腔可以对液体光谱测量过程的温度进行控制。同时，在光路固定槽内可放入不同光程的比色皿，可以实现实验过程不同光程的对比性实验。 In order to solve the technical problems mentioned in the background technology, the present invention provides an optical cavity for liquid transmission spectrum testing with a constant temperature function, and the optical cavity for testing can control the temperature of the liquid spectrum measurement process. At the same time, cuvettes with different optical paths can be placed in the optical path fixing groove, which can realize the comparative experiment of different optical paths in the experimental process.
本发明的技术方案是：该种带有恒温功能的液体透射光谱测试用光学腔，具有箱体外壳，其独特之处在于：箱体外壳内置有第一接线盒、保温隔热盒和第二接线盒，所述第一接线盒、保温隔热盒和第二接线盒由左至右依次紧密贴合于所述箱体外壳内； The technical scheme of the present invention is: the optical chamber with a constant temperature function for liquid transmission spectrum testing has a box shell, and its unique feature is that the box shell is built with a first junction box, a thermal insulation box and a second The junction box, the first junction box, the thermal insulation box and the second junction box are closely fitted in the box shell from left to right;
其中，所述保温隔热盒被中间隔板分为左、右两个腔，水平贯穿所述保温隔热盒的中央固定有一块U形的采用导热材料制成的光路固定槽，在所述保温隔热盒上，对应所述光路固定槽的左端开有左光学窗，在所述保温隔热盒上，对应所述光路固定槽的右端开有右光学窗；光路固定槽左端槽壁的上、下两侧分别开有第一光路进气口和第二光路进气口，光路固定槽右端槽壁的上、下两侧分别开有第一光路出气口和第二光路出气口； Wherein, the thermal insulation box is divided into left and right two cavities by the middle partition, and a U-shaped optical path fixing groove made of heat-conducting material is fixed horizontally through the center of the thermal insulation box. On the thermal insulation box, there is a left optical window corresponding to the left end of the optical path fixing groove, and on the thermal insulation box, there is a right optical window corresponding to the right end of the optical path fixing groove; The first optical path air inlet and the second optical path air inlet are respectively opened on the upper and lower sides, and the first optical path air outlet and the second optical path air outlet are respectively opened on the upper and lower sides of the groove wall at the right end of the optical path fixing groove;
在所述光路固定槽外，贯穿所述保温隔热盒至第一接线盒和第二接线盒内对称均匀分布有若干电加热管，电加热管的导体引出端通过所述保温隔热盒上开有的内螺纹通孔引出，之后，通过带有外螺纹锁紧台阶的绝缘锁紧环锁紧在所述保温隔热盒的外壁上，电加热管25的底端紧贴所述光路固定槽的槽壁，在电加热管的底端与所述光路固定槽的槽壁之间贴合有导热胶泥；若干电加热管的导体引出端分别连接在位于第一接线盒和第二接线盒内的热管连接片上，然后经电导线引出至所述第一接线盒和第二接线盒外，以便于和带有调温箱31的外接电源相连接； Outside the optical path fixing groove, a number of electric heating tubes are evenly and symmetrically distributed through the thermal insulation box to the first junction box and the second junction box, and the conductor leads of the electric heating tubes pass through the thermal insulation box. The opened internal thread through hole is drawn out, and then locked on the outer wall of the heat insulation box through an insulating locking ring with an external thread locking step, and the bottom end of the electric heating tube 25 is fixed against the optical path. The groove wall of the groove, between the bottom end of the electric heating tube and the groove wall of the optical path fixing groove, is pasted with heat-conducting cement; the conductor lead-out ends of several electric heating pipes are respectively connected to the first junction box and the second junction box. On the heat pipe connection sheet inside, then lead out to the outside of the first junction box and the second junction box through electric wires, so as to be connected with the external power supply with temperature control box 31;
在所述保温隔热盒内，位于所述光路固定槽外的上、下腔内分别固定有一个温度传感器，所述温度传感器的测量信号引出端通过导线分别连接至位于第一接线盒和第二接线盒内的温控仪上的温度信号输入端，温控仪的温度控制信号输出端连接至调温箱的温度控制信号输入端，调温箱用于控制外接电源输出到热管连接片上的电流强度，以实现对所述电加热管加热功率的调节； In the thermal insulation box, a temperature sensor is respectively fixed in the upper and lower cavities outside the optical path fixing groove, and the measurement signal lead-out ends of the temperature sensor are respectively connected to the first junction box and the second junction box through wires. 2. The temperature signal input terminal on the temperature controller in the junction box, the temperature control signal output terminal of the temperature controller is connected to the temperature control signal input terminal of the temperature control box, and the temperature control box is used to control the output of the external power supply to the connection piece of the heat pipe. current intensity, to realize the adjustment of the heating power of the electric heating tube;
所述光学腔还包括位于箱体外壳外的以下组件，分别为第一氮气发生器、第二氮气发生器、第一氮气冷却器和第二氮气冷却器；依次贯穿所述箱体外壳、第一接线盒和保温隔热盒，对应所述保温隔热盒的左腔位于所述光路固定槽外的上侧部分开有第一氮气进孔，对应所述保温隔热盒的右腔位于所述光路固定槽外的上侧部分开有第一氮气出孔，在第一氮气进孔与第一氮气发生器之间通过管节连接有第一进气阀，在第一氮气出孔和第一氮气冷却器之间通过管节连接有第一出气阀；依次贯穿所述箱体外壳、第二接线盒和保温隔热盒，对应所述保温隔热盒的左腔位于所述光路固定槽外的下侧部分开有第二氮气进孔，对应所述保温隔热盒的右腔位于所述光路固定槽外的下侧部分开有第二氮气出孔，在第二氮气进孔与第二氮气发生器之间通过管节连接有第二进气阀，在第二氮气出孔和第二氮气冷却器之间通过管节连接有第二出气阀； The optical cavity also includes the following components located outside the box shell, which are respectively a first nitrogen generator, a second nitrogen generator, a first nitrogen cooler and a second nitrogen cooler; sequentially passing through the box shell, the second A junction box and a thermal insulation box, corresponding to the left cavity of the thermal insulation box located outside the upper part of the optical path fixing groove, there is a first nitrogen gas inlet hole, corresponding to the right cavity of the thermal insulation box located in the The upper part of the optical path fixing groove is provided with a first nitrogen outlet hole, and a first inlet valve is connected between the first nitrogen inlet hole and the first nitrogen generator through a pipe joint. A nitrogen cooler is connected with a first outlet valve through a pipe joint; it runs through the box shell, the second junction box and the thermal insulation box in sequence, and the left cavity corresponding to the thermal insulation box is located in the optical path fixing groove There is a second nitrogen inlet hole on the lower side of the outer part, and a second nitrogen gas outlet hole is opened on the lower side part outside the optical path fixing groove corresponding to the right cavity of the thermal insulation box. A second inlet valve is connected through a pipe joint between the nitrogen generators, and a second outlet valve is connected between the second nitrogen outlet hole and the second nitrogen cooler through a pipe joint;
所述光学腔还包括一个与箱体外壳相配合的顶盖，所述顶盖的内侧带有用于封闭所述保温隔热盒的带有中间隔板的盒盖，以实现扣合后可以将所述保温隔热盒变为一个封闭的具有左右腔的长方体；所述盒盖的内侧带有用于封闭所述光路固定槽的槽盖，以实现扣合后可以将所述光路固定槽变为一个封闭的长方体。 The optical cavity also includes a top cover matched with the box shell, the inner side of the top cover is provided with a box cover with a middle partition for closing the heat insulation box, so that after fastening, the The thermal insulation box becomes a closed cuboid with left and right cavities; the inner side of the box cover has a slot cover for closing the optical path fixing groove, so that the optical path fixing groove can be changed into A closed cuboid.
本发明具有如下有益效果：使用本装置进行测量时，加热装置提供的热源使液体样品所处光路内达到需要的温度，调温介质为在装置内保持循环的氮气。测量前，须调整好左光学窗和右光学窗的位置，确保测量光路严格按照直线轨迹通过，避免光线发生相移。本种光学腔有效地解决了不同温度下液体透射光谱测量的问题，合理地运用温控仪和调温箱调节电加热管加热程度，进而控制箱体内测量环境的温度，同时，本装置可以实现实验过程样品不同光程的对比性测量实验。本发明具有运行简单、安装方便以及材料来源广等优点。 The invention has the following beneficial effects: when the device is used for measurement, the heat source provided by the heating device makes the liquid sample in the optical path reach the required temperature, and the temperature adjustment medium is nitrogen kept circulating in the device. Before the measurement, the positions of the left optical window and the right optical window must be adjusted to ensure that the measurement light path passes strictly according to the straight line trajectory to avoid phase shift of the light. This kind of optical cavity effectively solves the problem of liquid transmission spectrum measurement at different temperatures, rationally uses the temperature controller and temperature control box to adjust the heating degree of the electric heating tube, and then controls the temperature of the measurement environment in the box. At the same time, this device can realize The experimental process is a comparative measurement experiment of samples with different optical path lengths. The invention has the advantages of simple operation, convenient installation, wide source of materials and the like.
附图说明： Description of drawings:
图1是本发明处于水平状态下的水平方向剖开的剖面结构的示意图。 Fig. 1 is a schematic diagram of a cross-sectional structure cut in the horizontal direction of the present invention in a horizontal state.
图2是本发明处于正视状态下的外观示意图。 Fig. 2 is a schematic diagram of the appearance of the present invention in a front view state.
图3是图2的左视结构示意图。 Fig. 3 is a left view structural diagram of Fig. 2 .
图4是本发明应用的系统图。 Fig. 4 is a system diagram of the application of the present invention.
具体实施方式： detailed description:
下面结合附图对本发明作进一步说明： The present invention will be further described below in conjunction with accompanying drawing:
由图1至图3所示，该种带有恒温功能的液体透射光谱测试用光学腔，具有箱体外壳1，其独特之处在于：箱体外壳1内置有第一接线盒2、保温隔热盒33和第二接线盒3，所述第一接线盒、保温隔热盒和第二接线盒由左至右依次紧密贴合于所述箱体外壳内； As shown in Fig. 1 to Fig. 3, this kind of optical chamber with a constant temperature function for liquid transmission spectrum testing has a box shell 1, and its unique feature is that the box shell 1 is built with a first junction box 2, a heat insulation insulation The heat box 33 and the second junction box 3, the first junction box, the thermal insulation box and the second junction box are tightly fitted in the box shell from left to right;
其中，所述保温隔热盒被中间隔板分为左、右两个腔，水平贯穿所述保温隔热盒的中央固定有一块U形的采用导热材料制成的光路固定槽5，在所述保温隔热盒上，对应所述光路固定槽的左端开有左光学窗6，在所述保温隔热盒上，对应所述光路固定槽的右端开有右光学窗7；光路固定槽5左端槽壁的上、下两侧分别开有第一光路进气口14和第二光路进气口15，光路固定槽5右端槽壁的上、下两侧分别开有第一光路出气口17和第二光路出气口18； Wherein, the thermal insulation box is divided into left and right two cavities by the middle partition, and a U-shaped optical path fixing groove 5 made of a heat-conducting material is fixed horizontally through the center of the thermal insulation box. On the thermal insulation box, there is a left optical window 6 corresponding to the left end of the optical path fixing groove, and on the thermal insulation box, a right optical window 7 is opened at the right end corresponding to the optical path fixing groove; A first optical path air inlet 14 and a second optical path air inlet 15 are respectively opened on the upper and lower sides of the left end groove wall, and a first optical path air outlet 17 is respectively opened on the upper and lower sides of the right end groove wall of the optical path fixing groove 5 and the second optical path gas outlet 18;
在所述光路固定槽外，贯穿所述保温隔热盒至第一接线盒和第二接线盒内对称均匀分布有若干电加热管25，电加热管25的导体引出端27通过所述保温隔热盒上开有的内螺纹通孔引出，之后，通过带有外螺纹锁紧台阶的绝缘锁紧环26锁紧在所述保温隔热盒的外壁上，电加热管25的底端紧贴所述光路固定槽的槽壁，在电加热管25的底端与所述光路固定槽的槽壁之间贴合有导热胶泥32；若干电加热管的导体引出端分别连接在位于第一接线盒和第二接线盒内的热管连接片28上，然后经电导线引出至所述第一接线盒和第二接线盒外，以便于和带有调温箱31的外接电源34相连接； Outside the optical path fixing groove, a number of electric heating tubes 25 are evenly and symmetrically distributed through the thermal insulation box to the first junction box and the second junction box, and the conductor lead-out ends 27 of the electric heating tubes 25 pass through the thermal insulation box. The inner threaded through hole opened on the heat box leads out, after that, it is locked on the outer wall of the heat insulation box through the insulating locking ring 26 with the outer thread locking step, and the bottom end of the electric heating tube 25 is close to The groove wall of the optical path fixing groove is bonded with heat-conducting glue 32 between the bottom end of the electric heating tube 25 and the groove wall of the optical path fixing groove; box and the heat pipe connecting sheet 28 in the second junction box, and then lead out to the outside of the first junction box and the second junction box through electric wires, so as to be connected with the external power supply 34 with the temperature regulating box 31;
在所述保温隔热盒内，位于所述光路固定槽外的上、下腔内分别固定有一个温度传感器29，所述温度传感器的测量信号引出端通过导线分别连接至位于第一接线盒和第二接线盒内的温控仪30上的温度信号输入端，温控仪30的温度控制信号输出端连接至调温箱31的温度控制信号输入端，调温箱31用于控制外接电源34输出到热管连接片28上的电流强度，以实现对所述电加热管加热功率的调节； In the thermal insulation box, a temperature sensor 29 is respectively fixed in the upper and lower cavities outside the optical path fixing groove, and the measurement signal lead-out ends of the temperature sensor are respectively connected to the first junction box and the first junction box through wires. The temperature signal input end on the temperature controller 30 in the second junction box, the temperature control signal output end of the temperature controller 30 is connected to the temperature control signal input end of the temperature control box 31, and the temperature control box 31 is used to control the external power supply 34 Output to the current intensity on the heat pipe connecting piece 28, to realize the adjustment of the heating power of the electric heating pipe;
所述光学腔还包括位于箱体外壳1外的以下组件，分别为第一氮气发生器21、第二氮气发生器22、第一氮气冷却器23和第二氮气冷却器24；依次贯穿所述箱体外壳、第一接线盒和保温隔热盒，对应所述保温隔热盒的左腔位于所述光路固定槽外的上侧部分开有第一氮气进孔12，对应所述保温隔热盒的右腔位于所述光路固定槽外的上侧部分开有第一氮气出孔19，在第一氮气进孔12与第一氮气发生器21之间通过管节连接有第一进气阀8，在第一氮气出孔19和第一氮气冷却器23之间通过管节连接有第一出气阀10；依次贯穿所述箱体外壳、第二接线盒和保温隔热盒，对应所述保温隔热盒的左腔位于所述光路固定槽外的下侧部分开有第二氮气进孔13，对应所述保温隔热盒的右腔位于所述光路固定槽外的下侧部分开有第二氮气出孔20，在第二氮气进孔13与第二氮气发生器22之间通过管节连接有第二进气阀9，在第二氮气出孔20和第二氮气冷却器24之间通过管节连接有第二出气阀11； The optical cavity also includes the following components located outside the box shell 1, which are respectively a first nitrogen generator 21, a second nitrogen generator 22, a first nitrogen cooler 23 and a second nitrogen cooler 24; The box shell, the first junction box and the thermal insulation box, corresponding to the upper part of the left cavity of the thermal insulation box located outside the optical path fixing groove, are provided with a first nitrogen inlet hole 12, corresponding to the thermal insulation The upper part of the right cavity of the box located outside the optical path fixing groove is provided with a first nitrogen gas outlet hole 19, and a first gas inlet valve is connected between the first nitrogen gas inlet hole 12 and the first nitrogen gas generator 21 through a pipe joint 8. A first outlet valve 10 is connected through a pipe joint between the first nitrogen outlet 19 and the first nitrogen cooler 23; it runs through the box shell, the second junction box, and the thermal insulation box in sequence, corresponding to the The left cavity of the thermal insulation box is located on the lower side of the optical path fixing groove and is provided with a second nitrogen inlet hole 13, and the right cavity of the thermal insulation box is located on the lower side of the optical path fixing groove. The second nitrogen outlet 20, between the second nitrogen inlet 13 and the second nitrogen generator 22 is connected with the second intake valve 9 by a pipe joint, between the second nitrogen outlet 20 and the second nitrogen cooler 24 There is a second outlet valve 11 connected through a pipe joint;
所述光学腔还包括一个与箱体外壳1相配合的顶盖4，所述顶盖的内侧带有用于封闭所述保温隔热盒的带有中间隔板的盒盖，以实现扣合后可以将所述保温隔热盒变为一个封闭的具有左右腔的长方体；所述盒盖的内侧带有用于封闭所述光路固定槽的槽盖，以实现扣合后可以将所述光路固定槽变为一个封闭的长方体。 The optical cavity also includes a top cover 4 matched with the box shell 1, the inner side of the top cover has a box cover with a middle partition for closing the heat insulation box, so as to realize The thermal insulation box can be turned into a closed cuboid with left and right cavities; the inner side of the box cover has a slot cover for closing the optical path fixing groove, so that the optical path fixing groove can be closed after fastening. into a closed cuboid.
具体实施时，所述光路固定槽采用不锈钢材料制成，左光学窗和右光学窗均采用石英玻璃材料；电加热管选用不锈钢管作为外壳，镍铬合金材料作为发热元件；温度传感器采用Pt100贴片式温度传感器，温控仪采用XMT7110小型智能温控仪。 During specific implementation, the optical path fixing groove is made of stainless steel, the left optical window and the right optical window are made of quartz glass; the electric heating tube is made of stainless steel as the shell, and the nickel-chromium alloy material is used as the heating element; the temperature sensor is made of Pt100 Chip temperature sensor, temperature controller adopts XMT7110 small intelligent temperature controller.
另外，所述光路固定槽的宽度略大于比色皿的宽度，可实现对常用光程比色皿的平行放入。常用的光程比色皿的范围为1mm、3mm、5mm和10mm光程比色皿。 In addition, the width of the optical path fixing groove is slightly larger than that of the cuvette, which can realize the parallel insertion of common optical path cuvettes. Commonly used optical path cuvettes range from 1mm, 3mm, 5mm and 10mm optical path cuvettes.
此外，所述保温隔热盒选用超细玻璃纤维棉为保温材料制成。 In addition, the thermal insulation box is made of superfine glass fiber cotton as thermal insulation material.
使用时，液体样品所处光路内达到需要的温度，调温介质为在装置内保持循环的氮气，测量前，须调整好左光学窗和右光学窗的位置，确保测量光路严格按照直线轨迹通过，避免光线发生相移。加热介质为提纯的氮气，通过对装置内氮气和导热胶泥进行加热来达到实验温度要求，氮气具有良好的惰性和耐腐蚀性，能保证内部实验装置免于损坏。 When in use, the liquid sample is placed in the optical path to reach the required temperature, and the temperature adjustment medium is nitrogen gas that keeps circulating in the device. Before measurement, the positions of the left optical window and the right optical window must be adjusted to ensure that the measuring optical path strictly follows the straight line. , to avoid phase shift of the light. The heating medium is purified nitrogen, and the temperature requirement of the experiment is achieved by heating the nitrogen and heat-conducting cement in the device. Nitrogen has good inertness and corrosion resistance, which can ensure that the internal experimental device is not damaged.
本装置按照如下方式使用：使用方法为（1）加液：打开顶盖4，选用实验所需型号比色皿并将待测液体样品倒入比色皿内，然后将盛有液体样品的比色皿放入光路固定槽内，完成后将顶盖4盖好。（2）充气：连接好外接氮气发生装置，打开氮气出气口，氮气进气口、进气阀，出气阀，然后通入氮气，先排除装置内部原有空气，将装置内部原有空气排净后，打开氮气冷却装置，用以保持氮气冷却后再排入大气，然后打开外接电源，通过控制温控仪和调温箱来控制装置内实验温度，开始实验。（3）测量：首先将装置用螺栓固定在光谱仪内，然后设置温控仪在所需实验温度内，待温度达到要求值后，稳定少许，进行实验测量。 The device is used in the following ways: the method of use is (1) Adding liquid: open the top cover 4, select the type of cuvette required for the experiment and pour the liquid sample to be tested into the cuvette, and then pour the cuvette containing the liquid sample into the cuvette. The color dish is put into the optical path fixing groove, and the top cover 4 is covered after completion. (2) Inflation: Connect the external nitrogen generating device, open the nitrogen outlet, nitrogen inlet, inlet valve, and outlet valve, and then inject nitrogen, first remove the original air inside the device, and drain the original air inside the device Finally, turn on the nitrogen cooling device to keep the nitrogen cooled and then discharge it into the atmosphere, then turn on the external power supply, control the temperature of the experiment in the device by controlling the temperature controller and the temperature control box, and start the experiment. (3) Measurement: First, fix the device in the spectrometer with bolts, and then set the temperature controller within the required experimental temperature. After the temperature reaches the required value, stabilize it a little, and perform experimental measurement.
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