Temperature measurement calibration device

Abstract

The utility model relates to the technical field of temperature measurement and calibration, and discloses a temperature measurement and calibration device which comprises a shell, a plurality of thermostatic baths are arranged on the shell, each thermostatic bath is provided with a heat conduction pot, a temperature adjusting assembly is arranged on the shell, and the temperature adjusting assembly comprises a refrigerator and a heater which are arranged in the corresponding thermostatic baths respectively. A cover plate is arranged on the heat conduction pot; through cooperative use of the shell, the temperature adjusting assembly, the cover plate, the heat conduction pot and the heat insulation plug, the closed heat preservation space is formed by the shell and the cover plate, heat exchange inside and outside the thermostatic bath is avoided, and then refrigeration and heat preservation are conducted on an ice-water mixture prepared in advance in the heat conduction pot through the refrigerator; water in the heat conduction pot is heated and boiled through the heater, meanwhile, the duration time of the standard temperature source is prolonged, the thermometer can be rapidly calibrated, a standard mercurial thermometer does not need to be used, and the effects of low power consumption maintenance and simultaneous calibration and temperature measurement of the double independent constant temperature sources are achieved.

Description

Technical Field

[0001] This application relates to the technical field of temperature measurement and calibration, and particularly to a temperature measurement and calibration device. Background Art

[0002] In the field of temperature measurement and calibration, most calibration devices adopt a single thermostat design. By using external heating or cooling equipment to control the temperature of the calibration medium (such as water or oil), the purpose of calibrating temperature measuring instruments is achieved. Although this design can meet the basic calibration requirements to a certain extent.

[0003] However, in the actual use process, the single thermostat design can only provide a calibration environment at one temperature point at a time. This means that if different temperature point thermometers need to be calibrated, the temperature needs to be changed sequentially, which not only takes time but also increases the complexity of the calibration process. Utility Model Content

[0004] In order to solve the problem of the calibration requirement of not being able to provide different temperature environments simultaneously, this application provides a temperature measurement and calibration device. The temperature measurement and calibration device provided by this application adopts the following technical solutions:

[0005] A temperature measurement and calibration device includes a housing. A plurality of thermostats are provided on the housing. A heat conducting pot is provided in each thermostat. A temperature adjusting component is provided on the housing. The temperature adjusting component includes a cooler and a heater respectively provided in the corresponding thermostat. A cover plate is provided on the heat conducting pot to reduce the heat interaction between the thermostat and the outside.

[0006] Preferably, the cooler is located at the bottom of the heat conducting pot, and the hot end of the cooler is located outside the thermostat, for maintaining the temperature of the ice-water mixture in the heat conducting pot.

[0007] Preferably, the heater is located at the bottom of the heat conducting pot in the thermostat, for maintaining the water temperature in the heat conducting pot at the boiling state.

[0008] Preferably, the cover plate includes a heat insulation cover hermetically embedded on the thermostat. A plurality of calibration holes are provided on the top of the heat insulation cover for inserting the measuring end of the thermometer.

[0009] Preferably, a flexible rubber sleeve is provided inside the calibration hole, and a heat insulation plug is slidably inserted into the calibration hole.

[0010] In summary, this application includes the following beneficial technical effects:

[0011] By using the cooperation of the outer shell, the temperature regulating component, the cover plate, the heat-conducting pot, and the heat insulation plug, a closed heat preservation space is formed by the outer shell and the cover plate to avoid heat exchange between the inside and outside of the constant temperature bath. Then, a pre-prepared ice-water mixture in a heat-conducting pot is refrigerated and insulated by a refrigerator, and the water in another heat-conducting pot is heated and boiled by a heater. At the same time, the survival time of the standard temperature source is extended, and the thermometer can be quickly calibrated without relying on a standard mercury thermometer. Compared with the prior art, it has the effects of low-power consumption maintenance and simultaneous calibration of temperature measurement with two independent constant temperature sources. Brief Description of the Drawings

[0012] Figure 1 is a first perspective three-dimensional structural schematic diagram of an application embodiment;

[0013] Figure 2 is a second perspective three-dimensional structural schematic diagram of an application embodiment;

[0014] Figure 3 is a third perspective three-dimensional structural schematic diagram of an application embodiment.

[0015] Description of the Reference Numerals: 1. Outer shell; 101. Heat preservation shell; 102. Heat insulation board; 2. Temperature regulating component; 201. Refrigerator; 202. Heater; 3. Cover plate; 301. Heat insulation cover; 302. Calibration hole; 4. Heat-conducting pot; 5. Heat insulation plug. Detailed Description of the Embodiment

[0016] The following will further describe the present application in detail Figures 1-3 with reference to the accompanying drawings.

[0017] An embodiment of the present application discloses a temperature measurement and calibration device. Refer to Figures 1-3 A temperature measurement and calibration device includes an outer shell 1. The outer shell 1 includes a heat preservation shell 101 with a placement groove installed inside. The temperature regulating component 2 is installed in the placement groove. The temperature regulating component 2 includes a refrigerator 201 and a heater 202 installed at the bottom of the placement groove. A heat insulation board 102 is installed in the middle of the placement groove. The placement groove is divided into two identical constant temperature baths by the heat insulation board 102, so that a layout design of one constant temperature bath for refrigeration and the other for heating is formed. A heat-conducting pot 4 is movably placed inside each of the two constant temperature baths. A cover plate 3 is placed on the top of the constant temperature bath to isolate the heat-conducting pot 4 from the external environment to a certain extent.

[0018] Refer to Figure 2, a temperature sensor is installed on the side walls of both constant temperature baths, which can accurately measure the temperature inside the heat-conducting pot 4. The temperature thresholds inside the two constant temperature baths can be preset through the control system. When the temperature is not within the threshold range, the control system controls the cooler 201 and the heater 202 to continuously work with high energy consumption. The cooler 201 is a thermoelectric cooler, and its hot end is located outside the constant temperature bath. For example, the temperature of the ice-water mixture can be preset to zero degrees Celsius. When the preset value is reached, the cooler 201 is in the low-power mode to keep the temperature of the ice-water mixture in the heat-conducting pot 4 from rising. The temperature of boiling water can be preset to one hundred degrees Celsius. When the preset value is reached, the heater 202 is in the low-power heat preservation mode to keep the temperature of the boiling water from dropping. The cooler 201.

[0019] Refer to Figure 3 , the cover plate 3 includes a heat-insulating cover 301 embedded in the constant temperature bath. A heat-insulating sealing strip is added between the heat-insulating cover 301 and the side wall of the heat-preservation shell 101. A number of calibration holes 302 are opened at the top of the heat-insulating cover 301 to facilitate the insertion of the measuring end of the thermometer. The diameter size of the calibration holes 302 can be customized according to needs, such as 6mm, 8mm, 10mm, 12mm, etc. A flexible rubber sleeve is installed inside the calibration holes 302 to increase the friction between the thermometer and the hole wall and prevent the thermometer from shaking. A heat-insulating plug 5 is slidably inserted into the calibration holes 302. When not measuring the temperature, the calibration holes 302 are blocked by the heat-insulating plug 5 to avoid heat loss.

[0020] The heat-conducting pot 4 can be made of copper or aluminum with good heat-conducting effect as needed. At the same time, the capacity of the heat-conducting pot 4 is installed at about 500-1000 ml to reduce the overall energy consumption.

[0021] The implementation principle of a temperature measurement and calibration device in an embodiment of this application is as follows: When the device is started, the user sets the target temperature thresholds of the two constant temperature baths through the control system. For example, the temperature of the ice-water mixture is set to about 0 °C in one constant temperature bath, and the temperature of boiling water is set to about 100 °C in the other constant temperature bath. The control system reads and confirms the set values and is ready to enter the working state.

[0022] For the constant temperature bath that needs to be cooled, such as the ice-water mixture bath, the control system starts the cooler 201 to work. When the temperature in the bath reaches the preset 0 °C, the thermoelectric cooler enters the low-power mode to maintain the temperature stability.

[0023] For the thermostat control system that needs to be heated, start the heater 202. The heater starts to work and provides heat to the thermostat. When the temperature in the thermostat reaches the preset temperature, such as 100 °C, the heater enters the low-power heat preservation mode to keep the temperature from dropping. The temperature sensor on the side wall of the thermostat continuously monitors the temperature in the thermostat and feeds the data back to the control system in real time. The control system compares the monitored temperature with the preset temperature threshold and dynamically adjusts the working states of the cooler 201 and the heater 202 to ensure that the temperature in the thermostat remains within the preset range.

[0024] After the temperature of the thermostat stabilizes, the user inserts the thermometer to be calibrated into the thermostat through the calibration hole 302, and the user records the readings shown on the thermometer. After the staff completes the calibration according to the results, the user pulls out the thermometer and plugs the calibration hole 302 with the heat insulation plug 5 to prevent heat loss. If necessary, the user can turn off the device or adjust it to the standby state and wait for the next use.

[0025] Finally, the following points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, which can be mechanical connection or electrical connection, or the communication inside two components, and can be directly connected. "Up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the described object changes, the relative position relationship may change;

[0026] Second: In the drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. Other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0027] Finally: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

[0028] The above are all the preferred embodiments of this application and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered by the protection scope of this application.

Claims

1. A temperature measurement and calibration device, comprising a housing (1), characterized in that: The outer shell (1) is provided with a plurality of thermostatic baths, each of which is provided with a heat conducting pot (4). The outer shell (1) is provided with a temperature regulating component (2), the temperature regulating component (2) comprising a refrigerator (201) and a heater (202) respectively arranged in the corresponding thermostatic baths. The heat conducting pot (4) is provided with a cover plate (3) for reducing heat exchange between the thermostatic bath and the outside.

2. A temperature measurement and calibration device according to claim 1, characterized in that: The refrigerator (201) is located at the bottom of the heat-conducting pot (4), and the hot end of the refrigerator (201) is located outside the thermostatic bath, so as to maintain the temperature of the ice-water mixture in the heat-conducting pot (4).

3. A temperature measurement and calibration device according to claim 1, characterized in that: The heater (202) is located at the bottom of the heat-conducting pot (4) in the thermostatic tank and is used to keep the water temperature in the heat-conducting pot (4) in a boiling state.

4. A temperature measurement and calibration device according to claim 1, characterized in that: The cover plate (3) comprises a heat-insulating cover (301) sealed and embedded in the thermostatic bath, and a plurality of calibration holes (302) are arranged on the top of the heat-insulating cover (301) for inserting the measuring end of a thermometer.

5. A temperature measurement and calibration device according to claim 4, characterized in that: A flexible rubber sleeve is arranged inside the calibration hole (302), and a heat insulation plug (5) is slidably inserted into the calibration hole (302).

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