A pure water container insulation system and water triple point reproduction device

Abstract

The present invention provides a pure water container insulation system and a water triple point reproduction device. The structure of the pure water container insulation system includes a pure water container containing pure water; an inner insulation box body surrounding the outside of the pure water container; an insulation device box body surrounding the outside of the inner insulation box body; an outer insulation box body surrounding the outside of the insulation device box body; and a refrigeration assembly installed on the outside of the pure water container and the insulation device box body. This pure water container insulation system and water triple point reproduction device can solve the problem that conventional temperature control methods cannot meet the temperature requirements of water triple point reproduction experiments.

Description

Technical Field

[0001] The present application relates to the field of temperature measurement technology, and in particular to a pure water container insulation system and a water triple point reproduction device. Background Art

[0002] The triple point of water refers to the temperature at which the solid, liquid and gas phases of water coexist in equilibrium. It is of great significance in the field of temperature measurement.

[0003] When conducting a water triple point replication experiment, the temperature uniformity and stability of the pure water container must be extremely high, both of which must be better than ±0.05K. Therefore, conventional temperature control methods are unable to meet the temperature requirements of the water triple point replication experiment. There is an urgent need for a pure water container temperature control system to achieve water triple point replication experiments. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide a pure water container insulation system and a water triple point reproduction device to solve the problem that conventional temperature control methods are difficult to meet the temperature requirements of the water triple point reproduction experiment.

[0005] According to a first aspect of the present invention, a pure water container insulation system is provided, wherein the pure water container insulation system includes: a pure water container, in which pure water is installed; an inner insulation box body, which is surrounded and arranged on the outside of the pure water container; an insulation device box body, which is surrounded and arranged on the outside of the inner insulation box body; an outer insulation box body, which is surrounded and arranged on the outside of the insulation device box body; and a refrigeration assembly, which is installed on the outside of the pure water container and the outside of the insulation device box body.

[0006] Preferably, a gap is provided between the inner insulation box body and the insulation device box body, a plurality of insulation support columns are provided between the bottom plate of the inner insulation box body and the bottom plate of the insulation device box body, and the inner surface of the insulation device box body is sprayed with black paint with high infrared emissivity.

[0007] Preferably, the outer insulation box body and the inner insulation box body are made of aerogel, the space between the outer insulation box body and the insulation device box body is filled with aerogel, and the space between the inner insulation box body and the pure water container is filled with aerogel.

[0008] Preferably, a multi-layer thermal insulation component is provided on the outside of the outer thermal insulation box body.

[0009] Preferably, the refrigeration component includes: a plurality of semiconductor refrigeration plates, which are arranged at intervals; and a heat pipe, wherein the first end of the heat pipe is thermally connected to the plurality of semiconductor refrigeration plates, and the second end of the heat pipe is thermally connected to the heat dissipation component of the water triple point reproduction device.

[0010] Preferably, the plurality of refrigeration components are respectively adhered to the plurality of side surfaces of the pure water container and the plurality of side surfaces of the thermal insulation device box body, the heat absorption surface of the semiconductor refrigeration sheet is adhered to the sides of the pure water container and the thermal insulation device box body, the heat release surface of the semiconductor refrigeration sheet is adhered to the heat pipe, and the second end of the heat pipe extends out of the outer thermal insulation box body.

[0011] Preferably, the pure water container is in the shape of a cuboid, the end face of the water container is square, a cylindrical through hole is formed inside the pure water container, and the pure water is installed in the cylindrical through hole.

[0012] Preferably, a cylindrical first constant temperature core is provided in the center of the cylindrical through hole, the diameter of the first constant temperature core is smaller than the diameter of the cylindrical through hole, and the first constant temperature core is made of stainless steel.

[0013] Preferably, a second constant temperature core is arranged in the cylindrical through hole, and the second constant temperature core includes: an inner wrapping part, which is arranged in the center of the cylindrical through hole, the inner wrapping part is a columnar structure with a ring-shaped cross section, and the inner wrapping part is a wire mesh structure; an outer wrapping part, which is wrapped around the inner wall of the cylindrical through hole, the outer wrapping part is a columnar structure with a ring-shaped cross section, and the outer wrapping part is a wire mesh structure; and a plurality of support parts, which are arranged between the inner wrapping part and the outer wrapping part, and the plurality of support parts are arranged around the inner wrapping part, the support part connects the inner wrapping part and the outer wrapping part, and the support part is a wire mesh structure.

[0014] According to a second aspect of the present invention, a water triple point reproduction device is provided, wherein the water triple point reproduction device includes a temperature measurement and control system and the pure water container insulation system as described above, the temperature measurement and control system is used to measure the temperature inside the pure water container and the temperature inside the insulation device box, and the temperature measurement and control system can control the refrigeration component to perform refrigeration.

[0015] The pure water container insulation system and water triple point reproduction device of the embodiment of the present invention are characterized by pure water installed inside the pure water container. The inner insulation box body is arranged to surround the outside of the pure water container. The insulation device box body is arranged to surround the outside of the inner insulation box body. The outer insulation box body is arranged to surround the outside of the insulation device box body. The refrigeration component is installed on the outside of the pure water container and the outside of the insulation device box body. The temperature measurement and control system of the water triple point reproduction device can control the refrigeration component to perform refrigeration, first perform the first-level temperature control on the insulation device box body to create a relatively stable temperature environment, and then perform the second-level temperature control on the pure water container, thereby achieving the temperature control accuracy requirement of the pure water. This can effectively solve the problem that conventional temperature control methods are difficult to meet the temperature requirements of the water triple point reproduction experiment.

[0016] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 Schematic diagram of the structure of the pure water container insulation system according to the present invention.

[0019] Figure 2 Schematic diagram of a partial structure of a pure water container insulation system according to the present invention.

[0020] Figure 3 This is a schematic diagram of a pure water container equipped with a second constant temperature core according to the present invention.

[0021] Figure 4 Schematic diagram of a water triple point reproduction device according to the present invention.

[0022] Figure markings: 1-pure water container; 10-cylindrical through hole; 11-first constant temperature core; 12-second constant temperature core; 121-inner wrapping part; 122-support part; 123-outer wrapping part; 2-inner insulation box body; 20-aerogel; 21-insulation support column; 3-insulation device box body; 4-outer insulation box body; 5-multi-layer insulation assembly; 6-refrigeration assembly; 61-semiconductor refrigeration plate; 62-heat pipe; 7-water triple point reproduction device; 70-temperature measurement and control system; 71-heat dissipation component. DETAILED DESCRIPTION

[0023] The following detailed description is provided to help the reader gain a comprehensive understanding of the methods, devices, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, devices, and / or systems described herein will be apparent upon understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order set forth herein. Rather, except for operations that must occur in a particular order, changes may be made that will be apparent upon understanding the disclosure of this application. Furthermore, descriptions of features known in the art may be omitted for clarity and brevity.

[0024] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many possible ways to implement the methods, devices, and / or systems described herein that will be apparent upon understanding the disclosure of this application.

[0025] Throughout the specification, when an element (such as a layer, region, or substrate) is described as being “on,” “connected to,” “coupled to,” “over,” or “overlaying” another element, it may be directly “on,” “connected to,” “coupled to,” “over,” or “overlaying” another element, or one or more other elements may be present between them. In contrast, when an element is described as being “directly on,” “directly connected to,” “directly coupled to,” “directly over,” or “directly covering” another element, there may be no other elements intervening therebetween.

[0026] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0027] Although terms such as "first," "second," and "third" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions are not limited by these terms. Rather, these terms are used only to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Thus, a first member, component, region, layer, or portion in the examples described herein may also be referred to as a second member, component, region, layer, or portion without departing from the teachings of the examples.

[0028] For ease of description, spatial relational terms such as "above," "upper," "below," and "lower" may be used herein to describe the relationship of one element to another element as shown in the accompanying drawings. Such spatial relational terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, an element described as being "above" or "upper" relative to another element would subsequently be "below" or "lower" relative to the other element. Thus, the term "above" includes both the orientations "above" and "below," depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relational terms used herein will be interpreted accordingly.

[0029] The terms used herein are intended to describe various examples only and are not intended to limit the examples. Unless the context clearly indicates otherwise, the singular form is intended to include the plural form. The terms "include," "comprising," and "having" list the presence of stated features, quantities, operations, components, elements, and / or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0030] Due to manufacturing techniques and / or tolerances, variations in the shapes shown in the drawings may occur. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include changes in shapes that occur during manufacturing.

[0031] The features of the examples described herein can be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application.

[0032] like Figures 1 to 4 As shown, according to the first aspect of the present invention, a pure water container insulation system is provided, which includes a pure water container 1, an inner insulation box body 2, an insulation device box body 3, an outer insulation box body 4 and a refrigeration component 6.

[0033] In the following description, reference will be made to Figures 1 to 4 The specific structure of the above components of the pure water container insulation system and the connection relationship of the above components are specifically described.

[0034] like Figures 1 to 4 As shown, in the embodiment, the interior of the pure water container 1 is equipped with pure water for conducting a water triple point reproduction experiment. The inner insulation box body 2 can be surrounded by the outside of the pure water container. The insulation device box body 3 can be surrounded by the outside of the inner insulation box body 2. The outer insulation box body 4 can be surrounded by the outside of the insulation device box body 3. The refrigeration component 6 can be installed on the outside of the pure water container 1 and the outside of the insulation device box body 3 for cooling. The pure water container insulation system can adopt a step-by-step temperature control method, that is, the refrigeration component 6 can first perform a primary temperature control on the insulation device box body 3 to create a relatively stable temperature environment, and then perform a secondary temperature control on the pure water container 1, thereby achieving the temperature control accuracy requirements for pure water.

[0035] In the embodiment, due to the extremely high requirements for the temperature uniformity and temperature stability of the pure water container when conducting the water triple point reproduction experiment, both need to be better than ±0.05K. Therefore, the pure water container insulation system can adopt a step-by-step temperature control method, that is, first create an environment with a suitable temperature, and perform preliminary temperature control on the environment, which is the first level of temperature control. Then, the temperature of the pure water container 1 is controlled, which is the second level of temperature control. The temperature control accuracy during the second level of temperature control is higher than that during the first level of temperature control. Specifically, when the insulation device box body 3 is subjected to the first level of temperature control, the target temperature can be (-20°C to +20°C) ±1°C. When the pure water container 1 is subjected to the second level of temperature control, the target temperature can be (-5°C to +5°C) ±0.05°C.

[0036] Preferably, Figure 1 and Figure 2 As shown, in this embodiment, the pure water container 1 can be shaped like a rectangular parallelepiped, and the end faces of the water container can be square, that is, the cross-section of the pure water container 1 is square, so that the pure water container 1 is cooled evenly and easily contacts the refrigeration assembly 6. The material of the pure water container 1 can be 316L stainless steel. A cylindrical through hole 10 can be formed inside the pure water container 1, and the pure water container is installed in the cylindrical through hole 10. The cylindrical through hole 10 can ensure that the pure water is cooled more evenly and has a larger capacity.

[0037] Preferably, Figures 1 to 4 As shown, in the embodiment, the inner heat-insulating box body 2, the heat-insulating device box body 3 and the outer heat-insulating box body 4 can all be rectangular box bodies, and their sizes gradually increase to achieve a one-to-one nesting relationship.

[0038] Preferably, Figure 1 As shown, in an embodiment, a spacer may be provided between the inner insulation box body 2 and the insulation device box body 3. Specifically, the outer wall of the inner insulation box body 2 and the inner wall of the insulation device box body 3 are separated by an air space, and a plurality of insulation support columns 21 may be provided between the bottom plate of the inner insulation box body 2 and the bottom plate of the insulation device box body 3. In this way, the insulation device box body 3 with the first-level temperature control can be separated from the pure water container 1 with the second-level temperature control to avoid direct heat conduction. The insulation support columns 21 may be made of polyimide. In addition, the inner surface of the insulation device box body 3 may be sprayed with black paint with high infrared emissivity to improve the temperature uniformity inside the insulation device box body 3.

[0039] Preferably, Figure 1 and Figure 2In the embodiment, the outer insulation box body 4 and the inner insulation box body 2 may be made of aerogel, and aerogel 20 may be filled between the outer insulation box body 4 and the insulation device box body 3, and aerogel 20 may be filled between the inner insulation box body 2 and the purified water container 1. That is, by wrapping the aerogel 20 around the outside of the insulation device box body 3 and the purified water container 1, they are protected from the influence of the ambient temperature.

[0040] In addition, preferably, Figures 1 to 4 In the embodiment, the outer insulation box body 4 may be further wrapped with a multi-layer insulation assembly 5. The multi-layer insulation assembly 5 may be formed by interlacing aluminized polyester film and polyester mesh. Specifically, a smooth, double-sided aluminized polyester film is used as a reflective screen, and a polyester mesh is used as a spacer layer. Each layer of reflective screen and spacer layer forms a unit. The multi-layer insulation assembly 5 may be comprised of ten units, thereby further reducing the impact of ambient temperature on the insulation system of the purified water container.

[0041] Preferably, Figures 1 to 4 As shown, in an embodiment, the refrigeration component 6 may include a plurality of semiconductor refrigeration sheets 61 and a heat pipe 62. The plurality of semiconductor refrigeration sheets 61 may be arranged in rows and spaced apart from each other to achieve a better cooling effect. The working principle of the semiconductor refrigeration sheet 61 is as follows: when current passes through a loop composed of different conductors, one side of the semiconductor refrigeration sheet 61 absorbs heat and the other side releases heat. The heat-absorbing surface of the semiconductor refrigeration sheet 61 is adhered to the wall of the pure water container 1 and the insulation device box body 3 to absorb heat. The heat-releasing surface of the semiconductor refrigeration sheet 61 can be thermally connected to the heat pipe 62. Specifically, the first end of the heat pipe 62 can be bonded to the plurality of semiconductor refrigeration sheets 61 for heat conduction. The second end of the heat pipe 62 can be thermally connected to the heat dissipation component 71 of the water triple point reproduction device 7 to dissipate heat.

[0042] Specifically, such as Figure 1 and Figure 2 As shown, in the embodiment, a plurality of the refrigeration components 6 can be respectively adhered to the multiple sides of the pure water container 1 and the multiple sides of the insulation device box body 3. Figure 1As shown, a plurality of semiconductor cooling sheets 61 can be adhered to the four side surfaces of the pure water container 1 except the end surface in the longitudinal direction. A plurality of semiconductor cooling sheets 61 can be adhered to the three side surfaces of the heat insulation device box body 3 except the end surface in the longitudinal direction and the bottom surface. The heat absorption surface of the semiconductor cooling sheet 61 is adhered to the side surfaces of the pure water container 1 and the heat insulation device box body 3, and the heat release surface of the semiconductor cooling sheet 61 is adhered to the heat pipe 62. The second end of the heat pipe 62 can extend out of the outer heat insulation box body 4. Preferably, the heat dissipation component 71 of the water triple point reproduction device 7 can be a water-cooled plate, and the second end of the heat pipe 62 can be adhered to the water-cooled plate for heat conduction.

[0043] In addition, preferably, Figure 1 As shown, in the embodiment, a cylindrical through hole 10 is formed inside the pure water container 1, and the cylindrical through hole 10 can be located in the center of the pure water container 1. A cylindrical first constant temperature core 11 can also be inserted in the center of the cylindrical through hole 10. The first constant temperature core 11 can be made of stainless steel, and the diameter of the first constant temperature core 11 can be smaller than the diameter of the cylindrical through hole 10. Pure water can be stored between the first constant temperature core 112 and the inner wall of the pure water container 1, that is, the pure water surrounds the first constant temperature core 11. The first constant temperature core 11 is used to improve the heat transfer efficiency of the pure water container 1 in the axial and radial directions. More preferably, the first constant temperature core 11 can be fixed on the end cover of the pure water container 1. After the end cover is installed on the pure water container 1, the first constant temperature core 11 will be inserted into the cylindrical through hole 10.

[0044] In addition, preferably, Figure 3As shown, in another embodiment, a second constant temperature core 12 may be provided in the cylindrical through hole 10, and the second constant temperature core 12 may include an inner wrapping portion 121, an outer wrapping portion 123 and a plurality of support portions 122. The second constant temperature core 12 may be a stainless steel capillary structure, so that pure water is easily adsorbed on the second constant temperature core 12. Among them, the inner wrapping portion 121 may be provided in the center of the cylindrical through hole 10 (the inner wrapping portion 121 may be wrapped on a cylindrical support column inside the pure water container 1). The inner wrapping portion 121 may be a columnar structure with a ring-shaped cross section. The inner wrapping portion 121 may be a wire mesh structure. Preferably, the inner wrapping portion 121 may be composed of three layers of 400 mesh 316L stainless steel wire mesh, and the thickness of the wire mesh single layer is 0.06 mm. The outer wrapping portion 123 may be wrapped around the inner wall of the cylindrical through hole 10. The outer wrapping portion 123 may be a columnar structure with a ring-shaped cross section. The outer wrapping part 123 can be a wire mesh structure. Preferably, the outer wrapping part 123 can be composed of three layers of 400-mesh 316L stainless steel wire mesh, and the thickness of the single layer of the wire mesh is 0.06 mm. A plurality of support parts 122 can be arranged between the inner wrapping part 121 and the outer wrapping part 123. A plurality of the support parts 122 can be arranged around the inner wrapping part 121. The support part 122 connects the inner wrapping part 121 and the outer wrapping part 123. Specifically, the support part 122 can be a sheet-shaped wire mesh structure. The specific number of the plurality of support parts 122 can be 16 pieces. The support part 122 can be composed of four layers of 400-mesh 316L stainless steel wire mesh, and the thickness of the single layer of the wire mesh is 0.06 mm. Since the stainless steel capillary knot has a certain flexibility, it can play the role of buffering the impact excitation between the metal shell and the working medium.

[0045] In addition, if Figure 4 As shown, according to a second aspect of the present invention, a water triple point reproduction device 7 is provided. The water triple point reproduction device 7 includes a temperature measurement and control system 70 and the above-mentioned pure water container insulation system. The temperature measurement and control system 70 is used to measure the temperature within the pure water container 1 and the temperature within the insulation device box 3, and the temperature measurement and control system 70 can control the refrigeration assembly 6 to perform refrigeration.

[0046] Preferably, in an embodiment, the temperature measurement and control system 70 may include a temperature sensor and a measurement and control unit. The temperature sensor may be installed in the pure water container 1 (specifically, it may be installed inside the thermostatic core) and in the insulation device box body 3. The temperature sensor installed in the pure water container 1 may be a platinum resistor PT1000 (temperature measurement accuracy can reach 0.001K), and the temperature sensor installed in the insulation device box body 3 may be a thermistor, thereby achieving multi-stage temperature control. Since the temperature sensor is the core temperature measuring element, in order to ensure the accuracy and stability of the measurement, the temperature measurement accuracy needs to be at least one order of magnitude higher than the temperature control accuracy. The measurement and control unit may be conductively connected to the temperature sensor and the semiconductor refrigeration chip 61 (it may be connected by a wire). The measurement and control unit may achieve multi-stage temperature control by controlling the power supply of the semiconductor refrigeration chip 61, thereby ultimately keeping the pure water at a suitable temperature.

[0047] In addition, if Figure 4 As shown, in an embodiment, the water triple point reproduction device 7 can be provided with two sets of pure water container insulation systems. The interior of the pure water container 1 in one set of pure water container insulation systems can be provided with a first constant temperature core 11, and the interior of the pure water container 1 in the other set of pure water container insulation systems can be provided with a second constant temperature core 12, thereby allowing for a control experiment.

[0048] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The scope of protection of the present application is not limited thereto. Although the present application has been described in detail with reference to the above-described embodiments, those skilled in the art should understand that any person skilled in the art can modify or easily conceive of changes to the technical solutions described in the above-described embodiments within the technical scope disclosed in the present application, or perform equivalent replacements for some of the technical features thereof. These modifications, changes, or replacements do not deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application shall be subject to the scope of protection of the claims.

Claims

1. A pure water container insulation system, provided in a water triple point reproduction device, characterized in that: The pure water container insulation system includes: A purified water container containing purified water; An inner heat-insulating box body is disposed surrounding the outside of the pure water container; A heat insulation device box body is arranged surrounding the outside of the inner heat insulation box body; An outer heat-insulating box body, arranged to surround the outside of the heat-insulating device box body; and A refrigeration assembly is installed on the outside of the pure water container and the outside of the insulation device box; The pure water container is in the shape of a rectangular parallelepiped, the end face of the water container is square, a cylindrical through hole is formed inside the pure water container, and the pure water is installed in the cylindrical through hole; A second constant temperature core is provided in the cylindrical through hole, and the second constant temperature core comprises: An inner wrapping portion is provided at the center of the cylindrical through hole, wherein the inner wrapping portion is a columnar structure with an annular cross section and a wire mesh structure; an outer wrapping portion, wrapped around the inner wall of the cylindrical through hole, the outer wrapping portion being a columnar structure with an annular cross section and a wire mesh structure; and A plurality of support parts are arranged between the inner wrapping part and the outer wrapping part. The plurality of support parts are arranged around the inner wrapping part. The support parts connect the inner wrapping part and the outer wrapping part. The support parts are a wire mesh structure.

2. The pure water container insulation system according to claim 1, characterized in that: A gap is provided between the inner insulation box body and the insulation device box body, a plurality of insulation support columns are provided between the bottom plate of the inner insulation box body and the bottom plate of the insulation device box body, and the inner surface of the insulation device box body is sprayed with high infrared emissivity black paint.

3. The pure water container insulation system according to claim 1, characterized in that: The outer insulation box body and the inner insulation box body are made of aerogel. Aerogel is filled between the outer insulation box body and the insulation device box body, and aerogel is filled between the inner insulation box body and the pure water container.

4. The pure water container insulation system according to claim 1, characterized in that: A multi-layer heat insulation component is arranged on the outside of the outer heat insulation box body.

5. The pure water container insulation system according to claim 1, characterized in that: The refrigeration assembly comprises: a plurality of semiconductor refrigeration chips, wherein the plurality of semiconductor refrigeration chips are arranged at intervals; and A heat pipe, wherein the first end of the heat pipe is thermally connected to the plurality of semiconductor refrigeration plates, and the second end of the heat pipe is thermally connected to the heat dissipation component of the water triple point reproduction device.

6. The pure water container insulation system according to claim 5, characterized in that: The plurality of refrigeration components are respectively adhered to the plurality of side surfaces of the pure water container and the plurality of side surfaces of the thermal insulation device box body, the heat absorption surface of the semiconductor refrigeration sheet is adhered to the side surfaces of the pure water container and the thermal insulation device box body, the heat release surface of the semiconductor refrigeration sheet is adhered to the heat pipe, and the second end of the heat pipe extends out of the outer thermal insulation box body.

7. A water triple point reproduction device, characterized in that: The water triple point reproduction device includes a temperature measurement and control system and a pure water container insulation system according to any one of claims 1 to 6, wherein the temperature measurement and control system is used to measure the temperature inside the pure water container and the temperature inside the insulation device box, and the temperature measurement and control system can control the refrigeration component to perform refrigeration.

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