Freezing gel preparation device

Abstract

The utility model discloses a frozen gel preparation device which comprises a body part and a cover body part, the body part is in a hollow cylinder shape, and the cover body part is detachably and fixedly arranged at the end part of one side of the body part. The body part is made of thermal insulation materials, the cover part is made of heat conduction materials, and a preparation cavity is formed in the body part. When the cover body part is fixed to the end of the body part and seals the preparation cavity, the auxiliary temperature conduction part is located in the preparation cavity and abuts against the inner side surface of the cover body part, the cover body part conducts temperature into the preparation cavity in the axis direction of the body part, and the auxiliary temperature conduction part conducts temperature in the preparation cavity in the radial direction of the body part. According to the preparation device of the frozen gel, the frozen gel can be oriented in the axial direction and the radial direction at the same time and is more controllable. The method is good in raw material universality, convenient to operate, independent of complex equipment and more suitable for production and use.

Description

Technical Field

[0001] The utility model relates to the technical field related to gel, in particular to a preparation device of frozen gel. Background Art

[0002] Hydrogels are widely used in biomedical materials and other fields, such as various hemostatic gels, scaffold gels, etc. However, traditional hydrogels have disadvantages such as poor environmental stability, easy decomposition, and insufficient mechanical elasticity. Cryo-oriented gels have greatly improved some of the performance deficiencies of traditional hydrogels. Cryogels are interconnected gels prepared at temperatures below zero and can be used in various research fields, such as PVA (polyvinyl alcohol) gels, silk gels, collagen gels, etc. Ideally, the cryogelation process is considered to be achieved by controlling the formation and growth of ice crystals, cross-linking and polymerization for phase separation, and then thawing the ice crystals to form interconnected porous cryogels. During the preparation of cryogels, the control of orientation directionality will determine the final state and performance of the gel, and will also affect the application scenarios of cryogels, so the cryo-preparation device is also particularly important.

[0003] For the cryogel preparation device, most of the existing reports are that the prepolymer solution is placed in a one-way heat transfer mold (such as a beaker), and then the mold as a whole is placed in a cooling refrigerant (such as liquid nitrogen) for unidirectional orientation. For example, the Chinese patent with application number CN202310617314.5 discloses a multifunctional cryogel preparation method and application. The patent uses a beaker as a preparation device. This type of method can control the approximate growth direction of ice crystals, but cannot effectively control the fiber spacing of the cryogel, and cannot achieve simultaneous orientation of the gel in different directions to prepare a gel network. In addition, the cryogel preparation device in the prior art is generally only suitable for laboratory research.

[0004] Therefore, in the prior art, common instruments such as beakers are used as cryogel preparation devices, and there is a lack of dedicated devices for cryogel preparation, which results in inconvenient cryogel preparation and poor preparation effect. Utility Model Content

[0005] The utility model aims to solve the problems in the prior art of lacking a dedicated device for preparing cryogel, and having inconvenient preparation of cryogel and poor preparation effect.

[0006] In order to solve the above technical problems, the utility model discloses a device for preparing frozen gel, comprising a main body and a cover, wherein the main body is in a hollow cylindrical shape and the cover is detachably fixed to one end of the main body.

[0007] The main body is made of heat-insulating material, the cover is made of heat-conducting material, and the main body has a preparation cavity. It also includes an auxiliary temperature-conducting part. When the cover is fixed to the end of the main body and closes the preparation cavity, the auxiliary temperature-conducting part is located in the preparation cavity and abuts against the inner surface of the cover. The cover conducts temperature into the preparation cavity along the axial direction of the main body, and the auxiliary temperature-conducting part conducts temperature in the preparation cavity along the radial direction of the main body.

[0008] By adopting the above technical scheme, the present application discloses a preparation device dedicated to preparing cryogel, which can conveniently prepare cryogel, prepare cryogel by storing prepolymer solution in the preparation cavity, and conduct temperature and axial orientation to the preparation cavity along the axial direction of the main body by setting a cover body made of heat-conducting material, and the auxiliary heat-conducting part is located in the preparation cavity, and the preparation cavity can be conducted along the radial direction of the main body to conduct temperature and radial orientation, that is, the cover body only conducts temperature to the closed preparation cavity along the axial direction (longitudinal direction) at one end of the main body, specifically to a low temperature below zero degrees, and the auxiliary heat-conducting part extends in the preparation cavity, and can also conduct temperature radially (transversely) in the preparation cavity. Therefore, the preparation device of cryogel disclosed in the present application can realize the orientation of cryogel in the longitudinal and transverse directions at the same time, and is also more controllable. In addition, the main body is made of heat-insulating material, and the cover body is made of heat-conducting material, which has good universality for raw materials, is easy to operate, does not rely on complex equipment, and is suitable for production use.

[0009] The utility model also discloses a frozen gel preparation device, wherein the auxiliary temperature conducting part comprises an extension column, one end of the extension column is fixed to the inner surface of the cover body, and the other end extends toward the bottom of the preparation cavity. In addition, the extension column is made of a heat conducting material.

[0010] By adopting the above technical solution, the auxiliary temperature conducting part is set as an extension column and fixed to the cover body, and the temperature is conducted to the extension column and then to the preparation cavity through the cover body in sequence, thereby achieving simultaneous axial and radial orientation.

[0011] The utility model also discloses a cryogel preparation device, wherein the thermal conductivity of the extension column decreases from one end close to the cover body toward the other end along the axial direction. Alternatively, the thermal conductivity of the extension column increases from one end close to the cover body toward the other end along the axial direction.

[0012] Furthermore, along the axial direction, the diameter of the extension column gradually decreases from one end close to the cover body toward the other end.

[0013] Furthermore, the extension column is integrally formed with the cover body, and one end of the extension column is fixed at a geometric center position of the cover body.

[0014] By adopting the above technical solution, the thermal conductivity of the extension column changes linearly, gradually increasing or decreasing, and the diameter of the extension column also changes successively, which can control the condensation speed and efficiency of the prepolymer solution in the preparation chamber and make the prepolymer solutions at different heights in the preparation chamber exhibit different properties.

[0015] The utility model also discloses a preparation device for cryogel, wherein the auxiliary temperature conducting part comprises a spiral temperature conducting tube, the axis of the spiral temperature conducting tube coincides with the axis of the main body, and the spiral temperature conducting tube is fixedly arranged in the preparation cavity.

[0016] The spiral thermal conductive tube spirally extends from one end of the main body close to the cover toward one end close to the bottom. Two connection ports are respectively arranged on the outer wall of the main body close to the cover and close to the bottom, and the connection ports are connected to both ends of the spiral thermal conductive tube. The spiral thermal conductive tube has a cooling channel isolated from the preparation chamber. The spiral thermal conductive tube is made of heat-conducting material.

[0017] By adopting the above technical solution, the auxiliary temperature conducting part is set as a spiral temperature conducting tube, which extends spirally along the inner wall of the main body of the spiral temperature conducting tube. The cooling channel in the spiral temperature conducting tube can allow the cooling medium to flow, and the spiral temperature conducting tube is made of heat-conducting material, which can conduct the temperature of the cooling medium to the preparation cavity, and realize radial temperature conduction orientation through the spiral temperature conducting tube.

[0018] The utility model also discloses a cryogel preparation device, wherein the pitch of the spiral temperature conducting tube is the same in the axial direction. Alternatively, the pitch of the spiral temperature conducting tube increases from the cover side of the main body toward the bottom side of the main body in the axial direction. Alternatively, the pitch of the spiral temperature conducting tube decreases from the cover side of the main body toward the bottom side of the main body in the axial direction.

[0019] By adopting the above technical solution and adjusting and designing the pitch of the spiral temperature conducting tube, the condensation speed and efficiency of the prepolymer solution in the preparation chamber can also be controlled, and the prepolymer solutions at different heights in the preparation chamber can exhibit different properties.

[0020] Furthermore, the outer peripheral side wall of the spiral temperature conducting tube is fixedly connected to the inner peripheral side wall of the main body.

[0021] Furthermore, the cover part is threadedly connected to the main body part; wherein, an external thread is arranged on a side of the cover part close to the main body part, and an internal thread is arranged on a side of the main body part close to the cover part.

[0022] By adopting the above technical solution, the cover part and the main body part are connected by the inner thread and the outer thread meshing with each other, which has the advantage of being quick and convenient for installation and disassembly.

[0023] The utility model also discloses a frozen gel preparation device, wherein the other end of the main body is also provided with a detachably connected auxiliary cover, which is also made of a heat-conducting material. Through this arrangement, the auxiliary cover and the cover can perform frozen preparation of the prepolymer solution stored in the preparation chamber from two directions.

[0024] In summary, the utility model discloses a preparation device for cryogel, which can facilitate the preparation of cryogel. A prepolymer solution is stored in the preparation cavity to prepare cryogel. The preparation cavity is heated and axially oriented along the axial direction of the main body by setting a cover body made of heat-conducting material. The auxiliary heat-conducting part is located in the preparation cavity, and the preparation cavity can be heated and oriented along the radial direction of the main body. The preparation device can simultaneously achieve the orientation of cryogel in the longitudinal and transverse directions, and is more controllable. In addition, the main body is made of heat-insulating material, and the cover body is made of heat-conducting material. It has good universality for raw materials, is easy to operate, does not rely on complex equipment, and is suitable for production use. The auxiliary heat-conducting part can be set as an extension column or a spiral heat-conducting tube, and two different structural methods are used for auxiliary heat conduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A cross-sectional view of a device for preparing a cryogel provided in Example 1 of the utility model;

[0026] Figure 2 A schematic diagram of a device for preparing a cryogel provided in Example 1 of the utility model;

[0027] Figure 3 A cross-sectional view of a device for preparing a cryogel provided in Example 2 of the utility model;

[0028] Figure 4 A schematic diagram of a device for preparing a cryogel provided in Example 2 of the utility model;

[0029] Description of reference numerals:

[0030] 100. Body part;

[0031] 110. Prepare cavity;

[0032] 200, cover body;

[0033] 300, extension column;

[0034] 400, spiral temperature conducting tube;

[0035] 410, connection port;

[0036] A. Axial; B. Radial. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0038] Example 1

[0039] In order to solve the problem that there is a lack of dedicated equipment for preparing cryogel in the prior art, the preparation of cryogel is inconvenient and the preparation effect is poor. The embodiment of this embodiment discloses a preparation device for cryogel, see Figure 1 The preparation device includes a main body 100 and a cover 200 . The main body 100 is in a hollow cylindrical shape, and the cover 200 is detachably fixed to one end of the main body 100 .

[0040] The main body 100 is made of heat-insulating material, and the cover 200 is made of heat-conducting material. The main body 100 has a preparation cavity 110. It also includes an auxiliary temperature-conducting portion. When the cover 200 is fixed to the end of the main body 100 and closes the preparation cavity 110, the auxiliary temperature-conducting portion is located in the preparation cavity 110 and abuts against the inner surface of the cover 200. The cover 200 conducts temperature to the preparation cavity 110 along the axial direction of the main body 100, and the auxiliary temperature-conducting portion conducts temperature in the radial direction of the main body 100 in the preparation cavity 110. It should be noted that in this example, the cover 200 and the auxiliary temperature-conducting portion conduct low temperatures below zero during the temperature-conducting process, thereby performing freeze preparation on the prepolymer solution. The axial direction is as follows: Figure 1 The A direction is shown in the middle, and the radial direction is shown in the Figure 1 As shown in the direction of B.

[0041] The body 100 can be made of common polyurethane rigid foam, polystyrene board, foam glass and other materials with good thermal insulation performance, and the cover 200 can be made of common metal materials with good thermal conductivity such as aluminum, copper, iron, etc. This embodiment does not specifically limit this. During the preparation process, the refrigerant can be, for example, a refrigerator, liquid nitrogen, dry ice, anhydrous ethanol, ethylene glycol, a mixture of dry ice and anhydrous ethanol, a mixture of ethylene glycol and dry ice, etc.

[0042] Next, the auxiliary temperature conduction part is explained. The auxiliary temperature conduction part is set in such a way that it is extended in the preparation chamber 110. The principle is that by setting an auxiliary temperature conduction part in the preparation chamber 110, while conducting temperature from the cover 200 toward the preparation chamber 110, the auxiliary temperature conduction part is set to increase the temperature conduction preparation parts. Compared with the method of conducting temperature preparation only through the cover 200, two temperature conduction preparation parts are provided, and freezing preparation is performed in two different directions. The cover 200 conducts temperature inward from one side close to the preparation chamber 110, and its temperature conduction direction is axial. The auxiliary temperature conduction part extends in the preparation chamber 110 and conducts temperature radially in the preparation chamber 110. The temperature conduction direction is radial, and the preparation rate is faster and the preparation effect is better. It should be noted that the auxiliary temperature conduction part actually also conducts temperature in the axial direction. Therefore, the auxiliary temperature-conducting part can be various temperature-conducting components extending in the preparation chamber 110, such as a temperature-conducting rod, a temperature-conducting column, a temperature-conducting screw, etc., and can also be, for example, a temperature-conducting pipe arranged in the preparation chamber 110, and temperature conduction is performed by transferring a coolant in the temperature-conducting pipe. The present application specifically describes two different embodiments in which the auxiliary temperature-conducting part is an extension column and a spiral temperature-conducting pipe.

[0043] Therefore, the present application discloses a preparation device dedicated to preparing cryogel, which can facilitate the preparation of cryogel. The prepolymer solution is stored in the preparation cavity 110 to prepare cryogel. The cover body 200 made of heat-conducting material is provided to conduct temperature and axial orientation to the preparation cavity 110 along the axial direction of the main body 100. The auxiliary temperature-conducting part is located in the preparation cavity 110, and the preparation cavity 110 can be conducted along the radial direction of the main body 100. The temperature is conducted and oriented radially. That is to say, the cover body 200 only conducts temperature to the closed preparation cavity 110 along the axial direction (longitudinal direction) at one end of the main body 100, generally at a low temperature below zero degrees, and the auxiliary temperature-conducting part extends in the preparation cavity 110, and can also conduct temperature radially (transversely) in the preparation cavity 110. Therefore, the preparation device for cryogel disclosed in the present application can simultaneously realize the orientation of cryogel in the longitudinal and transverse directions, and is also more controllable. In addition, the main body 100 is made of heat-insulating material, and the cover body 200 is made of heat-conductive material. It has good universality for raw materials, is easy to operate, does not rely on complex equipment, and is suitable for production use.

[0044] Next, see Figure 1 and Figure 2 , the auxiliary heat conducting part is set as the extension column 300 as an example for explanation:

[0045] When the auxiliary heat conducting part is set as an extension column 300, one end of the extension column 300 is fixed to the inner surface of the cover 200, and the other end extends toward the bottom of the preparation chamber 110. And the extension column 300 is made of a heat conducting material. The auxiliary heat conducting part is set as the extension column 300 and fixed to the cover 200, and the temperature is conducted to the extension column 300 and then to the preparation chamber 110 through the cover 200, thereby achieving simultaneous axial and radial orientation.

[0046] More specifically, along the axial direction, the thermal conductivity of the extension column 300 decreases from one end close to the cover body 200 toward the other end. Alternatively, along the axial direction, the thermal conductivity of the extension column 300 increases from one end close to the cover body 200 toward the other end. For example, in the axial direction of the extension column 300, the extension column 300 can be made of materials with different thermal conductivities, or made of the same material but with different thermal conductivities (the thermal conductivity changes linearly). For example, according to the actual situation of the prepared frozen oriented gel, the thermal conductivity increases or decreases in sequence, thereby controlling the formation rate of the frozen gel in the preparation cavity 110, and making the prepolymer solutions at different heights show different properties.

[0047] For example, when the thermal conductivity of the end of the extension column 300 close to the cover body 200 is greater than that of the other end, after the prepolymer solution is poured into the interior, in the height direction of the preparation cavity 110, the formation rate and performance of the cryogel close to the cover body 200 are better than the formation rate and performance of the cryogel around the extension column 300 close to the bottom. On the contrary, when the thermal conductivity of the end of the extension column 300 close to the cover body 200 is less than that of the other end, the formation rate and performance of the cryogel around the extension column 300 close to the bottom are better than the formation rate and performance of the cryogel around the extension column 300 close to the cover body 200. Those skilled in the art can design and select according to actual needs, and this embodiment does not make specific limitations on this.

[0048] See also Figure 1 or Figure 2 In one preferred embodiment, along the axial direction, the diameter of the extension column 300 decreases from one end close to the cover 200 to the other end. In addition, the extension column 300 is integrally formed with the cover 200, and one end of the extension column 300 is fixed at the geometric center of the cover 200.

[0049] By adopting the above technical solution, the diameter of the extension column 300 is gradually increased or decreased, and the diameter is changed successively, so as to control the condensation speed and efficiency of the prepolymer solution in the preparation chamber 110, and make the prepolymer solutions at different heights in the preparation chamber 110 show different properties.

[0050] Next, the connection method between the cover portion 200 and the main body portion 100 is described:

[0051] The cover 200 is threadedly connected to the body 100, wherein the side of the cover 200 close to the body 100 is provided with an external thread, and the side of the body 100 close to the cover 200 is provided with an internal thread. The cover 200 and the body 100 are connected by the mutual engagement of the internal thread and the external thread, and the installation and removal are quick and convenient. Those skilled in the art may also connect by means of clamping, sleeve connection, etc., and this embodiment does not limit this.

[0052] In another embodiment, a detachably connected auxiliary cover is also provided at the other end of the main body 100, and the auxiliary cover is also made of a heat-conducting material. With this arrangement, the auxiliary cover and the cover 200 can perform freeze preparation on the prepolymer solution stored in the preparation chamber 110 from two directions.

[0053] Furthermore, the preparation process of the cryogel preparation device disclosed in this embodiment is briefly described:

[0054] When preparing cryogel using the cryogel preparation device, first pour the prepolymer solution into the preparation chamber 110, then tighten and fix the cover 200 on the main body 100, at which time the extension column 300 is located in the preparation chamber 110, and then place the device in a cooling refrigerant with the cover 200 facing upward. Since the main body 100 is made of thermal insulation material, the prepolymer solution in the preparation chamber 110 will not exchange heat with the outside through the main body 100, but can only exchange heat through the cover 200. First, through the cooling of the cover 200, the axial prepolymer solution begins to cool down and further develops into a frozen orientation. At the same time, the extension column 300 extends inward and transmits cooling laterally, so that the prepolymer solution will also be frozen oriented in the radial direction, and the preparation rate of the cryogel is faster and the preparation effect is better.

[0055] Example 2

[0056] It should be noted that the difference between the cryogel preparation device disclosed in this embodiment and that in embodiment 1 is only the different arrangement of the auxiliary temperature conducting part, and the other structures are the same as those in embodiment 1, see Figure 3 and Figure 4 The auxiliary temperature conducting part includes a spiral temperature conducting tube 400 , the axis of the spiral temperature conducting tube 400 coincides with the axis of the main body 100 , and the spiral temperature conducting tube 400 is fixedly disposed in the preparation chamber 110 .

[0057] The spiral temperature conducting tube 400 spirally extends from one end of the body 100 close to the cover toward one end close to the bottom. Two connection ports 410 are respectively provided on the outer wall of the body 100 close to the cover and close to the bottom. The connection ports 410 are connected to both ends of the spiral temperature conducting tube 400. The spiral temperature conducting tube 400 has a cooling channel isolated from the preparation chamber 110. The spiral temperature conducting tube 400 is made of a heat conductive material.

[0058] In this embodiment, the auxiliary temperature conducting part is set as a spiral temperature conducting tube 400, which extends spirally along the inner wall of the main body 100 in the main body 100 of the spiral temperature conducting tube 400. The cooling channel in the spiral temperature conducting tube 400 can be used for the circulation of cooling medium (such as liquid nitrogen, ethylene glycol, a mixture of dry ice and anhydrous ethanol, etc.), and the spiral temperature conducting tube 400 is made of heat-conducting material, which can conduct the temperature of the cooling medium to the preparation chamber 110. The radial temperature conducting orientation is achieved by the spiral temperature conducting tube 400. The spiral temperature conducting tube 400 can be set to a metal material such as aluminum, copper, etc.

[0059] In one of the configurations, the pitches of the spiral temperature conducting tube 400 are the same in the axial direction. For example, the pitches between any two adjacent turns of the spiral temperature conducting tube 400 are 15 mm, 20 mm, 30 mm, etc.

[0060] Alternatively, in another arrangement, in the axial direction, the pitch of the spiral temperature conducting tube 400 increases successively from the cover side of the main body 100 toward the bottom side of the main body 100. For example, the pitch of the spiral temperature conducting tube 400 increases successively by 5 mm, and the pitch from the cover side of the main body 100 toward the bottom side of the main body 100 is 10 mm, 15 mm, 20 mm, 25 mm, etc., which increases successively.

[0061] Alternatively, in another arrangement, in the axial direction, the pitch of the spiral temperature conducting tube 400 decreases successively from the cover side of the main body 100 toward the bottom side of the main body 100. For example, the pitch of the spiral temperature conducting tube 400 decreases successively by 3 mm, and the pitch from the cover side of the main body 100 toward the bottom side of the main body 100 is 20 mm, 17 mm, 14 mm, 11 mm, etc., which decreases successively.

[0062] By adopting the above technical solution, the pitch of the spiral temperature conducting tube 400 is adjusted and designed, and the condensation speed and efficiency of the prepolymer solution in the preparation chamber 110 can also be controlled, and the prepolymer solutions at different heights in the preparation chamber 110 can exhibit different properties. Furthermore, the outer peripheral side wall of the spiral temperature conducting tube 400 is fixedly connected to the inner peripheral side wall of the main body 100.

[0063] The preparation process of the cryogel preparation device disclosed in this embodiment is also briefly described:

[0064] When preparing frozen gel using the frozen gel preparation device, first pour the prepolymer solution into the preparation chamber 110, then tighten the cover 200 to the main body 100, at this time the extension column 300 is located in the preparation chamber 110, then place the device with the cover 200 facing upward in the cooling refrigerant, and introduce the flowing cooling medium into the two connecting ports 410 of the spiral thermal tube 400. Since the main body 100 is made of thermal insulation material, the prepolymer solution in the preparation chamber 110 will not exchange heat with the outside through the main body 100, but can only exchange heat through the cover 200 and the spiral thermal tube 400. First, through the cooling of the cover 200, the axial prepolymer solution begins to cool down and further develops into a frozen orientation. At the same time, the spiral thermal tube 400 and the prepolymer solution exchange heat, so that the prepolymer solution will also be frozen oriented in the transverse (radial) direction, and the preparation rate of the frozen gel is faster and the preparation effect is better.

[0065] In summary, the utility model discloses a preparation device for cryogel, which can conveniently prepare cryogel. The preparation cavity 110 stores a prepolymer solution to prepare cryogel. The preparation cavity 110 is heated and oriented axially by setting a cover body 200 made of a heat-conducting material along the axial direction of the main body 100. The auxiliary heat-conducting part is located in the preparation cavity 110, and the preparation cavity 110 can be heated and oriented radially along the main body 100. Embodiment 1 and Embodiment 2 respectively disclose the specific structures of the auxiliary heat-conducting parts of two different structures. The preparation device can realize the orientation of the cryogel in the axial and radial directions at the same time, and is more controllable. In addition, the main body 100 is made of heat-insulating material, and the cover body 200 is made of heat-conducting material. It has good universality for raw materials, is easy to operate, does not rely on complex equipment, and is suitable for production use. The auxiliary heat-conducting part can be set as an extension column 300 or a spiral heat-conducting tube 400, and two different structural methods are used for auxiliary heat conduction.

[0066] It should be noted that, in addition to the implementation methods of the utility model described in the above-mentioned specific specific embodiments, those skilled in the art can easily understand other advantages and functions of the utility model from the contents disclosed in this specification. Although the description of the utility model will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to this implementation method. On the contrary, the purpose of introducing the utility model in conjunction with the implementation method is to cover other options or modifications that may be extended based on the claims of the utility model. In order to provide an in-depth understanding of the utility model, the above description contains many specific details, and the utility model can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the utility model, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments in the utility model and the features in the embodiments can be combined with each other.

[0067] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0068] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0069] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0070] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0071] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above contents are further detailed descriptions of the present invention in combination with specific embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. Those skilled in the art may make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A cryogel preparation device, characterized in that: It comprises a main body and a cover, wherein the main body is in a hollow cylindrical shape, and the cover is detachably fixed to one end of the main body; in The main body is made of heat-insulating material, the cover is made of heat-conductive material, and a preparation cavity is provided in the main body; and It also includes an auxiliary temperature-conducting portion. When the cover body is fixed to the end of the main body and closes the preparation cavity, the auxiliary temperature-conducting portion is located in the preparation cavity and abuts against the inner surface of the cover body. The cover body conducts temperature into the preparation cavity along the axial direction of the main body, and the auxiliary temperature-conducting portion conducts temperature in the preparation cavity along the radial direction of the main body.

2. The cryogel preparation device according to claim 1, characterized in that: The auxiliary temperature conducting part comprises an extension column, one end of which is fixed to the inner surface of the cover body, and the other end of which extends toward the bottom of the preparation chamber; and The extension column is made of heat conductive material.

3. The cryogel preparation device according to claim 2, characterized in that: Along the axial direction, the thermal conductivity of the extension column decreases from the one end close to the cover body toward the other end; or Along the axial direction, the thermal conductivity of the extension column increases sequentially from the one end close to the cover body toward the other end.

4. The cryogel preparation device according to claim 3, characterized in that: Along the axial direction, the diameter of the extension column gradually decreases from the one end close to the cover body toward the other end.

5. The cryogel preparation device according to claim 4, characterized in that: The extension column is integrally formed with the cover body, and one end thereof is fixed at a geometric center position of the cover body.

6. The cryogel preparation device according to claim 1, characterized in that: The auxiliary temperature conducting part comprises a spiral temperature conducting tube, the axis of which coincides with the axis of the main body and is fixedly arranged in the preparation chamber; wherein The spiral heat conducting tube spirally extends from one end of the main body close to the cover toward one end close to the bottom; and Two connection ports are respectively arranged on the outer wall of the main body near the cover and near the bottom, the connection ports are connected with both ends of the spiral temperature conducting tube, and the spiral temperature conducting tube has a cooling channel isolated from the preparation chamber; and The spiral temperature conducting pipe is made of heat conducting material.

7. The cryogel preparation device according to claim 6, characterized in that: In the axial direction, the pitches of the spiral temperature conducting pipes are the same; or In the axial direction, the pitch of the spiral thermal conductive tube increases gradually from the cover side of the main body toward the bottom side of the main body; or In the axial direction, the pitch of the spiral temperature conducting tube decreases gradually from the cover side of the main body toward the bottom side of the main body.

8. The cryogel preparation device according to claim 7, characterized in that: The outer peripheral side wall of the spiral temperature conducting tube is fixedly connected to the inner peripheral side wall of the main body.

9. The cryogel preparation device according to any one of claims 1 to 8, characterized in that: The cover part is threadedly connected to the main body part; wherein An external thread is arranged on one side of the cover portion close to the main body portion, and an internal thread is arranged on one side of the main body portion close to the cover portion.

10. The cryogel preparation device according to claim 9, characterized in that: The other end of the main body is also provided with a detachably connected auxiliary cover, which is also made of a heat-conducting material.

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