CN217490941U - Vacuum low-temperature device for cuvette measurement - Google Patents
Vacuum low-temperature device for cuvette measurement Download PDFInfo
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- CN217490941U CN217490941U CN202221692697.XU CN202221692697U CN217490941U CN 217490941 U CN217490941 U CN 217490941U CN 202221692697 U CN202221692697 U CN 202221692697U CN 217490941 U CN217490941 U CN 217490941U
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Abstract
The utility model discloses a vacuum low-temperature device for measuring a cuvette, which comprises a sample bin, a bottom plate, a vacuum refrigerating bin and an upper flange component, wherein the upper end and the lower end of the sample bin are respectively connected with the vacuum refrigerating bin and the bottom plate in a sealing way, a sample table for placing the cuvette is arranged in the sample bin, and quartz windows are symmetrically arranged on the front side and the rear side of the sample table in the sample bin; the top opening of the vacuum refrigeration bin is connected with an upper flange assembly in a sealing mode, the upper flange assembly comprises a flange seal base plate, a vacuum pumping port, a liquid nitrogen joint and an air release valve, the vacuum pumping port, the liquid nitrogen joint and the air release valve are arranged on the flange seal base plate, the outer end of the liquid nitrogen joint is connected with the inner end of a liquid nitrogen supply unit, the refrigeration inner bin is connected with a refrigeration head, and the bottom of the refrigeration head is connected with a sample table through a heat conduction copper strip. The utility model discloses cell is vacuum low temperature device for measurement can provide vacuum low temperature environment for the test sample, and the rerum natura changes the law and provides the condition under the low temperature environment for obtaining the sample.
Description
Technical Field
The utility model relates to a cell measures technical field, especially relates to a cell measures uses vacuum low temperature device.
Background
Cuvettes are a type of instrument equipped for spectroscopic analysis. It is mainly a quartz cuvette which is made by burning quartz powder, and the cuvette also has micro, semi-micro, fluorescence and the like. When some specific samples are subjected to spectral analysis, the cuvette needs to be placed in a vacuum low-temperature environment for a lighting test so as to observe the change rule of the physical properties of the samples in the low-temperature environment.
Therefore, it is necessary to develop a vacuum low temperature apparatus for cuvette measurement in response to the above requirements.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a cell is vacuum low temperature device for measurement can provide vacuum low temperature environment for the test sample, and the rerum natura changes the law and provides the condition under the low temperature environment for obtaining the sample.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model relates to a vacuum low-temperature device for cuvette measurement, which comprises a sample bin, a bottom plate, a vacuum refrigerating bin and an upper flange component, wherein the upper end and the lower end of the sample bin are respectively connected with the vacuum refrigerating bin and the bottom plate in a sealing way; the top opening sealing connection of vacuum refrigeration storehouse go up the flange subassembly, it includes flange seal base plate and sets up to go up the flange subassembly vacuum pump outlet, liquid nitrogen joint and bleed valve on the flange seal base plate, liquid nitrogen connects the outer end and connects the interior storehouse of liquid nitrogen supply unit inner and be connected with the refrigeration, storehouse bottom is provided with the refrigeration head in the refrigeration, the refrigeration head bottom is connected through heat conduction copper strips the sample platform.
Furthermore, a light hole is formed in the middle connecting plate of the sample table, the position of the light hole corresponds to the test smooth surface of the cuvette and corresponds to the quartz window, and a copper strip slot used for being connected with the heat-conducting copper strip is formed in the top end of the sample table.
Furthermore, a receding groove is formed in the connecting plate in the middle of the sample table, and the clamping head of the cuvette is placed in the receding groove; the middle connecting plate is also provided with a first sensor hole, the top of the sample table is provided with a first heating rod hole, a temperature sensor is installed in the first sensor hole, and a heating rod is installed in the first heating rod hole; the temperature sensor and the heating rod are connected to a second aviation socket through leads, and the second aviation socket is arranged on the flange sealing substrate.
Furthermore, a second heating rod hole and a second sensor hole are formed in the refrigerating head, a heating rod is arranged in the second heating rod hole, a temperature sensor is arranged in the second sensor hole, and the temperature sensor and the heating rod are connected to the second aviation socket through wires.
Further, still include equipment storehouse and moving platform, the equipment storehouse is sealed to be set up between sample storehouse and the bottom plate, moving platform sets up in the equipment storehouse, the moving platform top sets up the thermal-insulated support that can the translation, sample platform bottom plate fixed connection be in on the thermal-insulated support roof.
Further, the moving platform drives the heat insulation support in the horizontal direction of the transverse direction and the longitudinal direction.
Furthermore, the heat insulation support is formed by building a polytetrafluoroethylene plate.
Further, the sample chamber is provided with side covers connected through bolts on two side walls adjacent to the quartz window.
Compared with the prior art, the utility model discloses a beneficial technological effect:
the utility model relates to a vacuum low temperature device for cuvette measurement, which is characterized in that a vacuum refrigeration bin and an upper flange component are connected on a closed sample bin, liquid nitrogen in the vacuum refrigeration bin is gasified to reduce the temperature, a vacuum pumping port extracts air in a cavity to reach the required vacuum degree, and a vacuum low temperature environment can be provided for a sample platform in the sample bin; the cooling capacity is transmitted through the heat conduction copper strip, the conduction efficiency is high, and the cooling speed is high. The utility model discloses cell is vacuum low temperature device for measurement can provide vacuum low temperature environment for the test sample, and the rerum natura changes the law and provides the condition under the low temperature environment for obtaining the sample.
In addition, through set up the light trap on the even board in the middle part of sample platform, be convenient for pass the test light of spectrum appearance, be convenient for dress card cell simultaneously. Through installing heating rod and temperature sensor on sample platform and refrigeration head, the heating rod can heat up under the condition that the temperature is low, can adjust the temperature to the test range in, satisfies the measurement settlement condition. Through the arrangement of the moving platform, the heat insulation support can be moved to drive the sample table to change the position, and then the different parts of the colorimetric ware can be polished and measured. Through the heat insulation support setting that polytetrafluoroethylene panel built, the low temperature resistance of polytetrafluoroethylene material is good with heat-proof quality, can reduce sample platform cold volume downward transmission, has reduced the cold volume loss. Through the setting of dismantling the side cap, be convenient for place, take out the cell, can take out the maintenance to the sample platform simultaneously.
Drawings
The present invention will be further explained with reference to the following description of the drawings.
FIG. 1 is a schematic view of the three-dimensional structure of the vacuum low-temperature device for cuvette measurement according to the present invention;
FIG. 2 is a schematic view of the structure of the vacuum low temperature device for cuvette measurement according to the present invention;
FIG. 3 is a schematic diagram of the structure of the vacuum low temperature device for cuvette measurement according to the present invention;
FIG. 4 is a schematic sectional view of the portion A-A in FIG. 2;
FIG. 5 is a schematic cross-sectional view of the portion B-B in FIG. 3;
fig. 6 is a schematic view of the three-dimensional structure of the sample stage of the present invention.
Description of reference numerals: 1. a sample bin; 101. a side cover; 102. a quartz window; 103. pressing a plate frame; 2. an equipment bin; 201. a first aviation socket; 3. a base plate; 4. a vacuum refrigeration bin; 5. an upper flange assembly; 501. vacuum pumping; 502. a liquid nitrogen joint; 503. a deflation valve; 504. a second aviation socket; 6. a mobile platform; 601. a thermally insulating support; 7. a sample stage; 701. a light-transmitting hole; 702. a first heater rod orifice; 703. a yielding groove; 704. a first sensor aperture; 705. inserting a copper strip into a slot; 8. a cuvette; 9. a heat conducting copper strip; 10. a refrigeration head; 1001. a second heater rod orifice; 1002. a second sensor aperture; 11. and (5) refrigerating the inner bin.
Detailed Description
The core of the utility model is to provide a cell is vacuum low temperature device for measurement can provide vacuum low temperature environment for the test sample, and the rerum natura changes the law and provides the condition under the low temperature environment for obtaining the sample.
In the following, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to the attached drawings, fig. 1 is a schematic three-dimensional structure diagram of a vacuum low-temperature device for cuvette measurement according to the present invention;
FIG. 2 is a schematic view of the structure of the vacuum low temperature device for cuvette measurement according to the present invention; FIG. 3 is a schematic diagram of the structure of the vacuum low temperature device for cuvette measurement according to the present invention; FIG. 4 is a schematic sectional view of the portion A-A in FIG. 2; FIG. 5 is a schematic cross-sectional view of the portion B-B in FIG. 3; fig. 6 is a schematic view of the three-dimensional structure of the sample stage of the present invention.
In a specific embodiment, as shown in fig. 1 to 5, a vacuum low-temperature device for cuvette measurement includes a sample chamber 1, a bottom plate 3, a vacuum cooling chamber 4 and an upper flange assembly 5, wherein the upper end and the lower end of the sample chamber 1 are respectively connected with the vacuum cooling chamber 4 and the bottom plate 3 in a sealing manner. A sample table 7 for placing a cuvette 8 is arranged in the sample bin 1, quartz windows 102 are symmetrically formed in the sample bin 1 on the front side and the rear side of the sample table 7, and the quartz windows 102 serve as light penetrating windows of a spectrometer. The top opening of the vacuum refrigerating bin 4 is connected with an upper flange assembly 5 in a sealing mode, and the upper flange assembly 5 comprises a flange sealing base plate, a vacuum pumping port 501 arranged on the flange sealing base plate, a liquid nitrogen connector 502 and a deflation valve 503. The vacuum pumping port 501 is provided with a vacuum valve and is connected to a vacuum generator through a pipe. Liquid nitrogen connects 502 outer end and connects liquid nitrogen supply unit, and the inner is connected with storehouse 11 in the refrigeration, and the storehouse 11 internal expansion refrigeration in the refrigeration is gone into to the liquid nitrogen, and storehouse 11 bottom is provided with refrigeration head 10 in the refrigeration, and refrigeration head 10 bottom is passed through heat conduction copper strips 9 and is connected sample platform 7, and heat conduction copper strips 9 transmits cold volume for sample platform 7 promptly for the cell 8 of splendid attire sample enters into the low temperature state. The air release valve 503 is used to introduce air into the vacuum chamber during sampling or lofting.
The vacuum refrigerating bin 4 and the upper flange assembly 5 are connected to the closed sample bin 1, liquid nitrogen in the vacuum refrigerating bin 4 is gasified to reduce the temperature, and the vacuum pumping port 501 pumps air in the cavity to reach the required vacuum degree, so that a vacuum low-temperature environment can be provided for the sample table 7 in the sample bin 1; the heat conduction copper strip 9 is used for transferring cold energy, so that the heat conduction efficiency is high, and the cooling speed is high. The utility model discloses cell is vacuum low temperature device for measurement can provide vacuum low temperature environment for the test sample, and the rerum natura changes the law and provides the condition under the low temperature environment for obtaining the sample.
In a specific embodiment of the present invention, as shown in fig. 4 and fig. 6, the middle connecting plate of the sample stage 7 is provided with a light hole 701, the position of the light hole 701 corresponds to the test light surface of the cuvette 8, and corresponds to the quartz window 102, and the quartz window 102 is pressed on the opening of the sidewall of the sample chamber 1 through the pressing plate frame 103. The top end of the sample table 7 is provided with a copper strip slot 705 for connecting the heat-conducting copper strip 9.
Specifically, as shown in fig. 5 and fig. 6, the middle connecting plate of the sample stage 7 is further provided with an avoiding groove 703, and the clamping head of the cuvette 8 is placed at the position of the avoiding groove 703. The middle connecting plate is further provided with a first sensor hole 704, the top of the sample table 7 is provided with a first heating rod hole 702, a temperature sensor is arranged in the first sensor hole 704, and a heating rod is arranged in the first heating rod hole 702. The temperature sensor and heater rod are wired to a second aero socket 504, the second aero socket 504 being mounted on the flange seal substrate.
Specifically, as shown in fig. 4 and 5, the cooling head 10 is provided with a second heater rod hole 1001 and a second sensor hole 1002, a heater rod is disposed in the second heater rod hole 1001, and a temperature sensor is disposed in the second sensor hole 1002, and the temperature sensor and the heater rod are connected to the second aviation socket 504 through wires.
Through set up light trap 701 on the even board of middle part at sample platform 7, be convenient for pass the test light of spectrum appearance, be convenient for dress card cell 8 simultaneously. By installing the heating rod and the temperature sensor on the sample stage 7 and the refrigerating head 10, the heating rod can be heated up under the condition of low temperature, the temperature can be adjusted to be within a test range, and the measurement setting condition is met.
The utility model discloses an among the embodiment, as shown in fig. 1 ~ 5, the utility model discloses cell measurement is with vacuum low temperature device still includes equipment storehouse 2 and moving platform 6, and equipment storehouse 2 is sealed to be set up between sample storehouse 1 and bottom plate 3, and moving platform 6 sets up in equipment storehouse 2, and moving platform 6 top sets up the thermal-insulated support 601 that can the translation, and sample platform 7 bottom plate fixed connection is on thermal-insulated support 601 roof.
Specifically, as shown in fig. 4 and 5, the moving platform 6 includes a transverse driving assembly and a longitudinal driving assembly, the driving assembly includes a servo motor, a linear guide rail and a driving lead screw slider, and the moving platform 6 can drive the heat insulation support 601 in both the transverse and longitudinal horizontal directions. The outer wall of the equipment bin 2 is provided with a first aviation socket 201, and the servo motor is externally connected with a driver through the first aviation socket 201.
Specifically, as shown in fig. 4 and 5, the heat insulation support 601 is constructed and molded by using a teflon plate.
Through the arrangement of the moving platform 6, the heat insulation support 601 can be moved to drive the sample table 7 to change the position, and then different parts of the colorimetric ware 8 can be polished and measured. The heat insulation support 601 built through the polytetrafluoroethylene plate is good in low-temperature resistance and heat insulation performance of the polytetrafluoroethylene material, the downward transmission of the cold quantity of the sample table 7 can be reduced, and the cold quantity loss is reduced.
In one embodiment of the present invention, as shown in fig. 1 to 5, the sample chamber 1 is provided with side covers 101 connected by bolts on two side walls adjacent to the quartz window 102. The cross-sectional area of the opening at the side cover 101 is larger than that of the sample table 7.
Through the setting of dismantling side cap 101, be convenient for place, take out cell 8, can take out the maintenance to sample platform 7 simultaneously.
The utility model discloses the cell is measured and is used vacuum low temperature equipment during operation, with the cell 8 of splendid attire sample pack into sample platform 7 through sample storehouse 1 in side cap 101 department trompil, notice that the test plain noodles of cell 8 corresponds with light trap 701 position, the dress draw-in part dress of cell 8 is in groove 703 of stepping down, the vertical setting of cell 8 main part. The side cover 101 is installed again, sealing is completed, a vacuum valve on the vacuum pumping port 501 is opened, vacuumizing is started, after the vacuum degree in the cavity meets the set requirement, liquid nitrogen is introduced into the liquid nitrogen connector 502, the liquid nitrogen is gasified and refrigerated in the refrigerating inner bin 11, the refrigerating head 10 at the bottom transmits cold to the sample table 7 through the heat-conducting copper strip 9, and when the temperature of the sample table 7 reaches the set requirement, the sample table is polished through the spectrometer and penetrates through the quartz window 102 and the cuvette 8 to be measured. When the physical properties of 8 different positions of cell need to be measured, control moving platform 6 and move cell 8.
The vacuum low-temperature device for measuring the cuvette of the utility model has the advantages that the vacuum refrigerating bin 4 and the upper flange component 5 are connected on the closed sample bin 1, the liquid nitrogen in the vacuum refrigerating bin 4 is gasified to reduce the temperature, the vacuum pumping port 501 pumps the air in the cavity to reach the required vacuum degree, and the vacuum low-temperature environment can be provided for the sample platform 7 in the sample bin 1; the heat conduction copper strip 9 is used for transferring cold energy, so that the heat conduction efficiency is high, and the cooling speed is high. The utility model discloses cell is vacuum low temperature device for measurement can provide vacuum low temperature environment for the test sample, and the rerum natura changes the law and provides the condition under the low temperature environment for obtaining the sample. In addition, through set up light trap 701 on the middle part link board of sample platform 7, be convenient for pass the test light of spectrum appearance, be convenient for dress card cell 8 simultaneously. By installing the heating rod and the temperature sensor on the sample stage 7 and the refrigerating head 10, the heating rod can be heated up under the condition of low temperature, the temperature can be adjusted to be within a test range, and the measurement setting condition is met. Through the arrangement of the moving platform 6, the heat insulation support 601 can be moved to drive the sample table 7 to change the position, and then the different parts of the colorimetric ware 8 can be polished and measured. The heat insulation support 601 built through the polytetrafluoroethylene plate is good in low-temperature resistance and heat insulation performance of the polytetrafluoroethylene material, the downward transmission of the cold quantity of the sample table 7 can be reduced, and the cold quantity loss is reduced. Through the setting of dismantling side cap 101, be convenient for place, take out cell 8, can take out the maintenance to sample platform 7 simultaneously.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.
Claims (8)
1. The utility model provides a cell is measured and is used vacuum low temperature device which characterized in that: the device comprises a sample bin (1), a bottom plate (3), a vacuum refrigerating bin (4) and an upper flange assembly (5), wherein the upper end and the lower end of the sample bin (1) are respectively connected with the vacuum refrigerating bin (4) and the bottom plate (3) in a sealing manner, a sample table (7) for placing a cuvette (8) is arranged in the sample bin (1), and quartz windows (102) are symmetrically formed in the front side and the rear side of the sample table (7) of the sample bin (1); the top opening sealing connection of vacuum refrigeration storehouse (4) go up flange subassembly (5), it includes flange seal base plate and sets up to go up flange subassembly (5) vacuum pump outlet (501), liquid nitrogen joint (502) and bleed valve (503) on the flange seal base plate, liquid nitrogen joint (502) outer end is connected liquid nitrogen supply unit inner and is connected with interior storehouse of refrigeration (11), storehouse (11) bottom is provided with refrigeration head (10) in the refrigeration, refrigeration head (10) bottom is connected through heat conduction copper strips (9) sample platform (7).
2. The vacuum low-temperature apparatus for cuvette measurement according to claim 1, characterized in that: the middle connecting plate of the sample table (7) is provided with a light hole (701), the light hole (701) corresponds to the test smooth surface of the cuvette (8) and corresponds to the quartz window (102), and the top end of the sample table (7) is provided with a copper strip slot (705) used for connecting the heat conduction copper strip (9).
3. The vacuum low-temperature apparatus for cuvette measurement according to claim 2, characterized in that: the middle connecting plate of the sample table (7) is also provided with a receding groove (703), and the clamping head part of the cuvette (8) is placed in the receding groove (703); the middle connecting plate is also provided with a first sensor hole (704), the top of the sample table (7) is provided with a first heating rod hole (702), a temperature sensor is installed in the first sensor hole (704), and a heating rod is installed in the first heating rod hole (702); the temperature sensor and heating rod are connected by wires to a second aerospace socket (504), the second aerospace socket (504) being disposed on the flange seal substrate.
4. The vacuum low-temperature apparatus for cuvette measurement according to claim 3, characterized in that: a second heating rod hole (1001) and a second sensor hole (1002) are formed in the refrigerating head (10), a heating rod is arranged in the second heating rod hole (1001), a temperature sensor is arranged in the second sensor hole (1002), and the temperature sensor and the heating rod are connected to the second aviation socket (504) through wires.
5. The cuvette measurement vacuum cryogenic apparatus according to any one of claims 1 to 4, wherein: still include equipment storehouse (2) and moving platform (6), equipment storehouse (2) is sealed to be set up between sample storehouse (1) and bottom plate (3), moving platform (6) set up in equipment storehouse (2), moving platform (6) top sets up thermal-insulated support (601) that can the translation, sample platform (7) bottom plate fixed connection be in on thermal-insulated support (601) roof.
6. The vacuum low-temperature apparatus for cuvette measurement according to claim 5, characterized in that: the moving platform (6) drives the heat insulation support (601) in the horizontal direction of the transverse direction and the longitudinal direction.
7. The vacuum low-temperature apparatus for cuvette measurement according to claim 6, characterized in that: the heat insulation support (601) is built and molded by adopting a polytetrafluoroethylene plate.
8. The vacuum low-temperature apparatus for cuvette measurement according to claim 1, characterized in that: the sample cabin (1) is provided with side covers (101) connected through bolts on two side walls adjacent to the quartz window (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221692697.XU CN217490941U (en) | 2022-07-01 | 2022-07-01 | Vacuum low-temperature device for cuvette measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221692697.XU CN217490941U (en) | 2022-07-01 | 2022-07-01 | Vacuum low-temperature device for cuvette measurement |
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| Publication Number | Publication Date |
|---|---|
| CN217490941U true CN217490941U (en) | 2022-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221692697.XU Active CN217490941U (en) | 2022-07-01 | 2022-07-01 | Vacuum low-temperature device for cuvette measurement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116087102A (en) * | 2023-01-13 | 2023-05-09 | 中国科学院空间应用工程与技术中心 | Experimental device for ice satellite and open-sea ocean extreme environment simulation system |
-
2022
- 2022-07-01 CN CN202221692697.XU patent/CN217490941U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116087102A (en) * | 2023-01-13 | 2023-05-09 | 中国科学院空间应用工程与技术中心 | Experimental device for ice satellite and open-sea ocean extreme environment simulation system |
| CN116087102B (en) * | 2023-01-13 | 2023-11-03 | 中国科学院空间应用工程与技术中心 | Experimental device for ice satellite and open-sea ocean extreme environment simulation system |
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