CN210015033U - Thermostat of spectrophotometer - Google Patents
Thermostat of spectrophotometer Download PDFInfo
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- CN210015033U CN210015033U CN201920769681.6U CN201920769681U CN210015033U CN 210015033 U CN210015033 U CN 210015033U CN 201920769681 U CN201920769681 U CN 201920769681U CN 210015033 U CN210015033 U CN 210015033U
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- spectrophotometer
- chamber
- temperature
- thermostat
- side wall
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Abstract
The utility model provides a spectrophotometer thermostat, which comprises a thermostatic chamber and a temperature regulating chamber, wherein the thermostatic chamber is open downwards, the temperature regulating chamber surrounds the periphery of the thermostatic chamber and forms a closed space, and the temperature regulating chamber is filled with liquid; the spectrophotometer thermostat also comprises a slot, a light-transmitting pipeline, a liquid inlet, a liquid outlet and a heating structure; the slot is opened from the bottom of the spectrophotometer thermostat and is upwards recessed along the height direction; the light transmission pipeline penetrates through the temperature adjusting chamber and is communicated with the thermostatic chamber; the liquid inlet and the liquid outlet are respectively communicated with the temperature adjusting chamber; the heating structure surrounds the periphery of the thermostatic chamber and is fixed in the temperature adjusting chamber. The spectrophotometer thermostat of the utility model avoids the influence of the external environment temperature on the measuring result of the spectrophotometer, and improves the accuracy of the measuring result of the spectrophotometer; furthermore, the utility model discloses a spectrophotometer constant temperature equipment structural design need not to change the original structure of measuring instrument, convenient to use.
Description
Technical Field
The utility model relates to an instrument and meter field especially relates to a spectrophotometer constant temperature equipment.
Background
In the instrument analysis process, the temperature has great influence on the analysis result, and especially in the instrument analysis of the chemical reaction process, the reaction speed is unstable when the environmental temperature difference is too large, so that the measured data is unstable, the error is large, the reproducibility is not high, and even an error result is obtained. Therefore, the constancy of the temperature plays an important role in the accuracy, stability and reproducibility of the analysis results of the instrument.
The spectrophotometer just has above problem in the use, in order to improve the constant temperature problem when the spectrophotometer measures, in known technique, has to reform transform the cell support, adds the circulating water and carries out the constant temperature, and this kind of transformation technology is complicated and just can not do when external environment temperature is higher. Still install the heating band in instrument inside, directly generate heat, and this kind of design easily causes the instrument inside to be heated inhomogeneous, reduces the life of instrument.
SUMMERY OF THE UTILITY MODEL
In view of the problem that exists among the background art, the utility model aims to provide a spectrophotometer constant temperature equipment, its original structure that need not to change spectrophotometer just can solve the constant temperature problem of spectrophotometer in the use, avoids ambient temperature to spectrophotometer measuring result's influence, simple to use, convenient operation.
In order to achieve the above object, the present invention provides a thermostat of a spectrophotometer, which comprises a thermostatic chamber and a temperature adjusting chamber, wherein the thermostatic chamber is opened downwards, the thermostatic chamber is used for buckling a cuvette bracket therein, the temperature adjusting chamber surrounds the periphery of the thermostatic chamber and forms a closed space, and the temperature adjusting chamber is filled with liquid; the spectrophotometer thermostat also comprises a slot, a light-transmitting pipeline, a liquid inlet, a liquid outlet and a heating structure; the groove is opened at the bottom of the spectrophotometer thermostatic device and is upwards recessed along the height direction so that the cuvette bracket pull rod penetrates through the temperature adjusting chamber, the light transmission pipeline penetrates through the temperature adjusting chamber and is communicated with the thermostatic chamber, the liquid inlet and the liquid outlet are respectively communicated with the temperature adjusting chamber, the liquid inlet is used for cooling liquid to flow into the temperature adjusting chamber, and the liquid outlet is used for discharging the liquid in the temperature adjusting chamber so that the cooling liquid cools the thermostatic chamber; the heating structure surrounds the periphery of the thermostatic chamber and is fixed in the temperature adjusting chamber so as to heat the liquid in the temperature adjusting chamber.
In one embodiment, the spectrophotometer thermostat further includes an inner sidewall and an outer sidewall spaced from and surrounding a periphery of the inner sidewall.
In an embodiment, spectrophotometer constant temperature equipment still includes roof and connection wall, and the upper end of inside wall is connected in the roof and encloses into the thermostatic chamber with the roof, and the lateral wall is connected in the roof around the periphery and the upper end of inside wall, and the connection wall is connected in the lower extreme of inside wall and the lower extreme of lateral wall, and inside wall, lateral wall, connection wall and roof enclose into confined temperature regulation room.
In one embodiment, the top wall and the outer side wall are coated with an insulating material.
In one embodiment, the spectrophotometer thermostat further comprises a temperature sensor disposed in the thermostatic chamber, the temperature sensor being electrically connected to an external temperature control device for monitoring the temperature in the thermostatic chamber and enabling the heating structure to heat the liquid in the temperature regulating chamber in time.
In one embodiment, the light-transmitting pipes are arranged on two sides of the temperature regulation chamber in a direction perpendicular to the pull rod of the cuvette bracket, and the light-transmitting pipes correspond to the position of the cuvette bracket along the height direction.
In one embodiment, the spectrophotometer thermostatic device further comprises a fan, and the fan is arranged in the thermostatic chamber.
In one embodiment, the liquid inlet and the liquid outlet are disposed on a side of the outer sidewall opposite the slot.
In one embodiment, the spectrophotometer thermostat further comprises a partition plate connected between the inner side wall and the outer side wall and separating the liquid inlet from the liquid outlet.
In one embodiment, the spectrophotometer thermostat is made via a thermally conductive material.
The utility model has the advantages as follows:
according to the utility model discloses an among the spectrophotometer constant temperature equipment, the temperature cooling to the constant temperature chamber has been realized to setting up of inlet and liquid outlet, and the setting of heating structure has realized the temperature heating to the constant temperature chamber to make spectrophotometer no matter can both obtain fine use in the environment that the temperature is high or the environment that the temperature is low, avoided the influence of external environment temperature to spectrophotometer measurement result, improved spectrophotometer's measurement result's accuracy, in addition, the utility model discloses a design of spectrophotometer constant temperature equipment structure need not to change the original structure of measuring instrument (spectrophotometer), only need during the use buckle the outside at the cell bracket with spectrophotometer constant temperature equipment, and convenient to use can not produce any adverse effect to spectrophotometer simultaneously.
Drawings
Fig. 1 is a perspective view of a spectrophotometer thermostat according to the present invention.
Fig. 2 is a perspective view of fig. 1 from another angle.
FIG. 3 is a cross-sectional view of FIG. 1, showing the cuvette holder and cuvette holder pull rod for clarity.
Wherein the reference numerals are as follows:
1 thermostatic chamber B1 inner side wall
2 outer side wall of temperature adjusting chamber B2
3 slotted B3 Top wall
4 light-transmitting pipeline B4 connecting wall
5 liquid inlet B5 baffle
6 liquid outlet C cell bracket
7 heating structure L cuvette bracket pull rod
8 height direction of temperature sensor H
9 Fan
Detailed Description
The accompanying drawings illustrate embodiments of the present invention and it is to be understood that the disclosed embodiments are merely exemplary of the invention, which can be embodied in various forms, and therefore, specific details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present invention.
As shown in fig. 1 to 3, the spectrophotometer thermostat device according to the present invention includes a thermostatic chamber 1, a temperature adjusting chamber 2, a slot 3, a light transmission pipeline 4, a liquid inlet 5, a liquid outlet 6, a heating structure 7, a temperature sensor 8 and a fan 9. The spectrophotometer thermostat further includes an inner sidewall B1, an outer sidewall B2, an outer sidewall B2 spaced apart from the inner sidewall B1 and surrounding the outer perimeter of the inner sidewall B1.
The thermostatic chamber 1 is opened downwards, and the thermostatic chamber 1 is used for buckling the cuvette bracket C in the thermostatic chamber. The cuvette holder C may hold a cuvette (not shown). It should be noted that cell bracket C and the cell bracket pull rod L that the following said all are the devices on the spectrophotometer, and in the spectrophotometer use, the utility model discloses a spectrophotometer constant temperature equipment need detain the cell bracket C of spectrophotometer in thermostatic chamber 1 to avoid the spectrophotometer to receive external temperature's interference and influence measuring result's accuracy when the analysis.
The temperature adjusting chamber 2 surrounds the periphery of the thermostatic chamber 1 and forms a closed space, and the temperature adjusting chamber 2 is filled with liquid. The temperature adjustment chamber 2 can adjust the temperature of the thermostatic chamber 1, and ensure that the temperature in the thermostatic chamber 1 is maintained within a predetermined range. Specifically, the temperature adjustment chamber 2 is configured to lower the temperature of the thermostatic chamber 1 by a cooling liquid described below, and to raise the temperature of the thermostatic chamber 1 by the heating structure 7, and how the temperature adjustment chamber 2 adjusts the temperature of the thermostatic chamber 1 will be described in detail below.
The heating structure 7 surrounds the outer circumference of the thermostatic chamber 1 and is fixed in the temperature adjustment chamber 2 to heat the liquid in the temperature adjustment chamber 2 and transfer the heat to the thermostatic chamber 1. In one embodiment, the heating structure 7 is a thermocouple. The heating structure 7 is electrically connected to an external temperature control device (not shown). When the spectrophotometer used in chilly winter, promptly, when the temperature in thermostatic chamber 1 was less than the use specified value, need heat thermostatic chamber 1, at this moment, outside temperature control device control heating structure 7 opened to liquid in the temperature regulation room 2 heats and gives thermostatic chamber 1 with heat transfer, thereby the realization is to thermostatic chamber 1 rising temperature's effect, has guaranteed that the spectrophotometer also can be used well in chilly winter, has improved the accuracy of spectrophotometer measuring result.
To sum up, according to the utility model discloses an among the spectrophotometer constant temperature equipment, inlet 5 and liquid outlet 6 set up and have realized the temperature cooling's in the thermostatic chamber 1 control, and heating structure 7's effect has realized the control to the temperature heating in the thermostatic chamber 1 to make spectrophotometer no matter can both obtain fine use in the environment of high temperature or the environment that the temperature is low, avoided the influence of external environment temperature to spectrophotometer measurement result, improved spectrophotometer's measurement result's accuracy.
The slot 3 is opened from the bottom of the spectrophotometer thermostat and is recessed upwards in the height direction H for the cuvette holder pull rod L to pass through the temperature regulation chamber 2. In one embodiment, as shown in fig. 3, the cuvette carrier C has four receiving slots, each receiving slot can receive a cuvette, the cuvette can receive a substance to be analyzed, when the spectrophotometer analyzes cuvettes containing different substances, the position of the cuvette carrier C can be adjusted by pulling the cuvette carrier pull rod L, so that different receiving slots of the cuvette carrier C correspond to the positions of the light transmission pipes 4 described below, and the cuvettes containing different substances can be analyzed. Preferably, the size of the slot 3 is substantially the same as that of the cuvette holder pull rod L, so that the temperature of the thermostatic chamber 1 is reduced from being affected by the external temperature, and the stability of the temperature inside the thermostatic chamber 1 is improved.
The light-transmitting duct 4 communicates with the thermostatic chamber 1 through the temperature adjusting chamber 2. The light transmission pipeline 4 is arranged on two sides of the temperature adjusting chamber 2 in the direction perpendicular to the pull rod L of the cuvette bracket, and the light transmission pipeline 4 corresponds to the position of the cuvette bracket C along the height direction H. It should be noted that the position of the light transmission pipe 4 is set to ensure that the cuvette can be irradiated by the light transmitted by the light transmission pipe 4 by pulling out or pushing in the cuvette holder pull rod L to the corresponding position when analyzing the cuvette in each accommodating groove of the cuvette holder C. The light-transmitting duct 4 is sealed through the outer side wall B2 and the inner side wall B1. The setting of printing opacity pipeline 4 can enough guarantee that spectrophotometer's test light passes printing opacity pipeline 4 and jets into on the cell of cell bracket C, can guarantee again that the liquid of the interior packing of temperature regulation room 2 does not leak. The utility model discloses a spectrophotometer constant temperature equipment structure (fluting 3 and printing opacity pipeline 4) design need not to change the original structure of measuring instrument (spectrophotometer), only needs during the use to detain spectrophotometer constant temperature equipment in cell bracket C's outside, and convenient to use can not produce any adverse effect to spectrophotometer simultaneously.
In addition, a temperature sensor 8 can be arranged in the thermostatic chamber 1, and the temperature sensor 8 is electrically connected with an external temperature control device so as to monitor the temperature in the thermostatic chamber 1 and enable the heating structure 7 to heat the liquid in the temperature adjusting chamber 2 in time. Specifically, the temperature sensor 8 and the heating structure 7 are electrically connected to an external temperature control device, when the temperature sensor 8 senses that the temperature in the thermostatic chamber 1 is lower than a set value, the temperature sensor 8 sends an electric signal to the external temperature control device, the temperature control device controls the heating structure 7 to heat the liquid in the temperature adjusting chamber 2, then the heat is transferred to the thermostatic chamber 1 through the inner side wall B1 with good heat conductivity, so that the temperature of the thermostatic chamber 1 is adjusted, when the temperature in the thermostatic chamber 1 is raised to a specified temperature through the heating structure 7, the temperature sensor 8 can timely send an electric signal to the external temperature control device, the temperature control device controls the heating structure 7 to stop heating, and therefore the coordination of the temperature sensor 8 and the heating structure 7 ensures that the temperature in the thermostatic chamber 1 is kept within a specified range, and the phenomenon that the measurement data of the spectrophotometer are unstable due to too low external environment temperature is avoided, Large errors, low reproducibility, even wrong results and the like.
In order to ensure the uniformity of the temperature inside the thermostatic chamber 1, the spectrophotometer thermostatic apparatus further includes a fan 9, and the fan 9 is disposed inside the thermostatic chamber 1. The number of the fans 9 is plural and is provided on the wall surfaces of the inner side walls B1 facing each other. Specifically, in one embodiment, the number of the fans 9 is two, and the two fans 9 are disposed at diagonally opposite corners of the wall surfaces opposite to each other. This arrangement of the fan enables the air in the thermostatic chamber 1 to flow, so that the temperature in the thermostatic chamber 1 is more uniform.
In order to form the thermostatic chamber 1 and the temperature-regulating chamber 2, the spectrophotometer thermostatic apparatus has various design forms, and in one embodiment, the spectrophotometer thermostatic apparatus further includes a top wall B3 and a connecting wall B4, an upper end of the inner side wall B1 is connected to the top wall B3 and encloses the thermostatic chamber 1 with the top wall B3, an outer side wall B2 surrounds an outer periphery of the inner side wall B1 and an upper end is connected to the top wall B3, the connecting wall B4 is connected to a lower end of the inner side wall B1 and a lower end of the outer side wall B2, and the inner side wall B1, the outer side wall B2, the connecting wall B4 and the top wall B3 enclose the closed. In this embodiment, the liquid inlet port 5 and the liquid outlet port 6 are provided on the opposite side of the outer side wall B2 from the slot 3. The spectrophotometer thermostat further comprises a partition B5, a partition B5 is connected between the inner side wall B1 and the outer side wall B2 and separates the liquid inlet 5 from the liquid outlet 6. Of course, the invention is not limited to this, and other configurations are possible, and will not be described in detail here. The setting of baffle B5 has guaranteed inlet 5, temperature regulation room 2 and liquid outlet 6 form liquid flow path, thereby make outside cooling liquid can flow and take away the heat in thermostatic chamber 1 in the flow path, thereby realize reducing the purpose of the temperature in thermostatic chamber 1, it needs to be noted that, the temperature of outside cooling liquid is an optimal fixed temperature, the cooling liquid of constant temperature lets in temperature regulation room 2 in succession, can effectively reduce the temperature in thermostatic chamber 1 to the same with the temperature of cooling liquid, thereby avoid reducing the temperature in thermostatic chamber 1 below the standard value and influence the measuring result of instrument. The spectrophotometer thermostat is made via a thermally conductive material. That is, the outer side wall B2, inner side wall B1, top wall B3, and connecting wall B4 are all made of a thermally conductive material, which in one embodiment is copper. The spectrophotometer constant temperature equipment that the heat conduction material was made can realize the effect of heat transfer, can adjust the temperature of thermostatic chamber 1 through temperature regulation room 2 fast, avoids receiving external environment's influence and causing the appearance of measured data unstability, error big or wrong result among the instrument analysis process in the thermostatic chamber 1. In one embodiment, the outer surfaces of outer side wall B2 and top wall B3 are coated with a heat insulating material to further prevent the influence of external temperature on the temperature inside thermostatic chamber 1.
The experimental procedure is briefly described below: before the experiment, the spectrophotometer thermostat of the utility model is buckled on a cuvette bracket C, then a heating structure 7 or cooling circulating water is selected to be started according to the height of the room temperature, and a fan 9 in a thermostatic chamber 1 is started at the same time; when the temperature in the thermostatic chamber 1 is adjusted to a specified value and is kept stable, the spectrophotometer thermostatic device is lifted, a cuvette to be analyzed is placed, then the spectrophotometer thermostatic device is buckled, and then measurement is carried out.
The above detailed description describes exemplary embodiments, but is not intended to limit the combinations explicitly disclosed herein. Thus, unless otherwise specified, various features disclosed herein can be combined together to form a number of additional combinations that are not shown for the sake of brevity.
Claims (10)
1. A thermostat of a spectrophotometer is characterized by comprising a thermostatic chamber (1) and a temperature regulating chamber (2), wherein the thermostatic chamber (1) is open downwards, the thermostatic chamber (1) is used for buckling a cuvette bracket (C) in the thermostatic chamber, the temperature regulating chamber (2) surrounds the periphery of the thermostatic chamber (1) and forms a closed space, and the temperature regulating chamber (2) is filled with liquid;
the spectrophotometer constant temperature device also comprises a slot (3), a light transmission pipeline (4), a liquid inlet (5), a liquid outlet (6) and a heating structure (7);
the slot (3) is opened from the bottom of the spectrophotometer thermostat and is recessed upwards along the height direction (H) for the cuvette holder pull rod (L) to pass through the temperature adjusting chamber (2),
the light transmission pipeline (4) passes through the temperature adjusting chamber (2) and is communicated with the thermostatic chamber (1),
the liquid inlet (5) and the liquid outlet (6) are respectively communicated with the temperature adjusting chamber (2), the liquid inlet (5) is used for cooling liquid to flow into the temperature adjusting chamber (2), and the liquid outlet (6) is used for discharging the liquid in the temperature adjusting chamber (2) so that the cooling liquid can cool the thermostatic chamber (1);
the heating structure (7) surrounds the periphery of the thermostatic chamber (1) and is fixed in the temperature adjusting chamber (2) so as to heat the liquid in the temperature adjusting chamber (2).
2. Spectrophotometer thermostat arrangement according to claim 1, characterized in that the spectrophotometer thermostat arrangement further comprises an inner side wall (B1) and an outer side wall (B2), the outer side wall (B2) being spaced apart from the inner side wall (B1) and surrounding the outer circumference of the inner side wall (B1).
3. Spectrophotometer thermostat arrangement according to claim 2, characterized in that the spectrophotometer thermostat arrangement further comprises a top wall (B3) and a connecting wall (B4), the upper end of the inner side wall (B1) being connected to the top wall (B3) and enclosing a thermostatic chamber (1) with the top wall (B3), the outer side wall (B2) enclosing the periphery of the inner side wall (B1) and the upper end being connected to the top wall (B3), the connecting wall (B4) being connected to the lower end of the inner side wall (B1) and to the lower end of the outer side wall (B2), the inner side wall (B1), the outer side wall (B2), the connecting wall (B4) and the top wall (B3) enclosing a closed temperature regulating chamber (2).
4. Spectrophotometer thermostat device according to claim 3, characterized in that the top wall (B3) and the outer side wall (B2) are coated with a heat insulating material.
5. Spectrophotometer thermostat according to claim 1, characterized in that the spectrophotometer thermostat further comprises a temperature sensor (8), the temperature sensor (8) being arranged inside the thermostatic chamber (1), the temperature sensor (8) being electrically connected to an external temperature control device for monitoring the temperature inside the thermostatic chamber (1) and for the heating structure (7) to heat the liquid inside the temperature regulation chamber (2) in time.
6. Spectrophotometer thermostat arrangement according to claim 2, characterized in that the light-transmitting ducts (4) are arranged on both sides of the temperature regulation chamber (2) in a direction perpendicular to the cuvette holder tie-rods (L), and that the light-transmitting ducts (4) correspond in height direction (H) to the position of the cuvette holder (C).
7. Spectrophotometer thermostat according to claim 1, characterized in that the spectrophotometer thermostat further comprises a fan (9), the fan (9) being arranged inside the thermostatic chamber (1).
8. Spectrophotometer thermostat device according to claim 2, characterized in that the inlet port (5) and the outlet port (6) are arranged on the side of the outer side wall (B2) opposite the slot (3).
9. Spectrophotometer thermostat arrangement according to claim 8, characterized in that the spectrophotometer thermostat arrangement further comprises a partition (B5) connected between the inner side wall (B1) and the outer side wall (B2) and separating the liquid inlet (5) from the liquid outlet (6).
10. Spectrophotometer thermostat according to claim 1, characterized in that the spectrophotometer thermostat is made via a heat conducting material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920769681.6U CN210015033U (en) | 2019-05-24 | 2019-05-24 | Thermostat of spectrophotometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920769681.6U CN210015033U (en) | 2019-05-24 | 2019-05-24 | Thermostat of spectrophotometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210015033U true CN210015033U (en) | 2020-02-04 |
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ID=69317931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920769681.6U Expired - Fee Related CN210015033U (en) | 2019-05-24 | 2019-05-24 | Thermostat of spectrophotometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210015033U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117388207A (en) * | 2023-09-28 | 2024-01-12 | 无锡迅杰光远科技有限公司 | Liquid spectrum acquisition equipment |
-
2019
- 2019-05-24 CN CN201920769681.6U patent/CN210015033U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117388207A (en) * | 2023-09-28 | 2024-01-12 | 无锡迅杰光远科技有限公司 | Liquid spectrum acquisition equipment |
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