Micro sample distillation apparatus

Abstract

The present application discloses a trace sample distillation instrument, relates to the technical field of water solution processing, and comprises a heating box, a distillation flask is placed in the heating box, a receiving flask is inserted on one side of the distillation flask, and auxiliary instruments are arranged on one side of the receiving flask. The first fastening part and the second fastening part can be effectively closed by adding the magnet group, which provides conditions for the steam condensation work of the receiving flask, and the installation convenience is improved. The application of the magnet group greatly simplifies the installation process of the receiving flask, avoids the complicated tightening and buckling operations in the prior art, and the trace sample distillation instrument only needs to approach the corresponding position of the first fastening part with the receiving flask to the second fastening part. The attractive force of the magnet group A and the magnet group B can quickly guide the precise butt joint and close of the two, and in the experimental or production scene requiring frequent replacement of the receiving flask, the quick installation mode greatly saves the operation time and improves the work efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aqueous solution treatment, in particular to a micro-sample distillation instrument. BACKGROUND

[0002] In the field of chemical and biological research as well as fine chemical production, distillation of solution samples is an important operation step for obtaining pure products or analyzing components. Among them, the vapor condensation process plays a key role in product collection and quality assurance.

[0003] Currently, the widely used vapor condensation method is to use dry ice to cool the receiving flask to achieve rapid condensation of vapor. However, this traditional method has exposed many problems in practical application, which has greatly hindered the smooth progress of experiments and production.

[0004] From the perspective of convenience, the operator must frequently wear protective gloves for dry ice addition, replacement and related operations. In some experiments or production scenarios that require continuous distillation, such frequent operations not only consume time and effort, but also interrupt the workflow and reduce work efficiency. Moreover, the process of preparing protective gloves before each operation and arranging gloves after operation is tedious, which has a more significant impact on some experiments that require high continuity of operation.

[0005] In terms of safety, dry ice is usually placed in an exposed container, which poses multiple risks. On the one hand, a large amount of carbon dioxide gas generated by dry ice sublimation accumulates in a limited space, which can easily lead to dizziness, nausea and even suffocation of the operator due to inhalation of excessive carbon dioxide if the ventilation conditions are poor. On the other hand, the exposed dry ice container lacks effective protection measures and is prone to tipping over in the case of personnel movement or equipment vibration. Once the dry ice is tipped over, not only will it cause waste of dry ice, but more seriously, the dry ice that comes into contact with the human body can instantly freeze the skin, causing serious harm to the health of the operator.

[0006] In addition, the energy utilization efficiency of the existing dry ice cooling method is low. Since the dry ice is directly exposed to the environment, its refrigeration energy is quickly dissipated to the surrounding environment, a large amount of cold energy is wasted, and it cannot fully act on the cooling of the receiving flask, resulting in an accelerated consumption of dry ice and increased experimental and production costs. At the same time, in order to maintain a certain cooling effect, the amount of dry ice used must be increased, which further exacerbates energy waste and operational inconvenience.

[0007] In some experiments or production processes that require high temperature control accuracy, the characteristics of the dry ice refrigeration effect weakening over time make it difficult to stably control the temperature of the receiving flask. Temperature fluctuations can affect the condensation effect of the vapor, resulting in unstable purity and yield of the product, which cannot meet the requirements of high-precision experiments and production.

[0008] In summary, the existing technology of using dry ice to cool the receiving flask for steam condensation has obvious deficiencies in convenience, safety and energy utilization efficiency, and there is an urgent need to develop a more efficient, convenient and safe steam condensation technology to meet the needs of scientific research and production.

[0009] Therefore, the present application provides a micro sample distillation instrument to solve the above problems. SUMMARY

[0010] Therefore, the present application provides a micro sample distillation instrument to solve the above problems.

[0011] To achieve the above purpose, the present application provides the following technical scheme: a micro sample distillation instrument, comprising: a heating box, a distillation flask is placed in the heating box, a receiving flask is inserted on one side of the distillation flask, an auxiliary instrument is arranged on one side of the receiving flask, a protection assembly and a dry ice filling assembly are arranged between the heating box and the auxiliary instrument, and the dry ice filling assembly is located in front of the protection assembly.

[0012] The protection assembly is used to ensure the safety of personnel during purification and condensation.

[0013] The dry ice filling assembly is used to assist the operator to conveniently and safely fill dry ice during purification and condensation.

[0014] As an improvement, the protection assembly comprises a first clamping member clamped on one side of the receiving flask, a magnet group A is fixedly connected to the first clamping member, a heat insulation cotton placement arc groove is formed in the first clamping member, and rubber buffer grooves are formed in the first clamping member.

[0015] As an improvement, a semicircular threaded cavity A is fixedly connected to the bottom end surface of the first clamping member, a second clamping member is clamped on the other side of the receiving flask, a magnet group B is fixedly connected to the second clamping member, and the first clamping member and the second clamping member form a clamping ball cavity.

[0016] As an improvement, a semicircular threaded cavity B is fixedly connected to the bottom end surface of the second clamping member, the semicircular threaded cavity A and the semicircular threaded cavity B can form a threaded nipple cavity, a spiral adjusting base is placed on one side of the heating box, and the semicircular threaded cavity A and the semicircular threaded cavity B form a threaded nipple cavity which is threadedly matched with the spiral adjusting base.

[0017] As an improvement, the dry ice filling assembly comprises a transmission cavity fixedly connected to the second clamping member, and a filling strip opening is formed in the transmission cavity.

[0018] As improved, the transmission cavity is slidably connected with a push bar, the push bar is fixedly connected with a push rod, the outer end surface of the transmission cavity is fixedly connected with a spring, and the outer end of the spring is fixedly connected with a connecting strip.

[0019] As improved, the transmission cavity is fixedly connected with a dry ice storage bin.

[0020] As improved, the ball cavity is fixedly connected with a temperature sensor, the ball cavity is fixedly connected with a conical part, the bottom end of the conical part is fixedly connected with a mesh, and the second fastening part is provided with a through air vent.

[0021] As improved, the second fastening part is provided with a through air inlet, and the air inlet is fixedly connected with a blocking strip.

[0022] Compared with the prior art, the present application provides a micro sample distillation instrument, which has the following advantages: 1. The first fastening part and the second fastening part are effectively closed by the addition of the magnet group, which provides conditions for the vapor condensation of the receiving flask. The above design can bring the following benefits: 1. The application of the magnet group greatly simplifies the installation process of the receiving flask, avoiding the need for complicated tightening, buckling and other operations in the prior art. Now, the first fastening part with the receiving flask is placed near the corresponding position of the second fastening part, and the attractive force of the magnet group A and the magnet group B can quickly guide the precise docking and close of the two, which greatly saves the operation time and improves the work efficiency in the experimental or production scene where the receiving flask needs to be frequently replaced. Moreover, even in a limited space, the automatic adsorption characteristics of the magnet can easily complete the installation for the operator, reducing the operation difficulty and being more friendly to novice operators.

[0023] The magnet group generates strong attractive force to ensure that the first fastening part and the second fastening part are tightly attached, so that the receiving flask is stably fixed during the entire vapor condensation process. This effectively avoids the situation that the receiving flask is loose or falls off due to device vibration, external force collision factors, and ensures the continuity of vapor condensation work. In a complex environment, such as a production workshop with machine vibration and frequent personnel movement, stable installation can prevent vapor leakage and poor condensation caused by flask shaking, ensuring the collection efficiency and quality of the product.

[0024] Optimize steam condensation effect: The tight closure of the first and second buckling components, combined with the sealing effect of the magnet group, reduces the entry of external heat. During the steam condensation process, this helps to maintain a low temperature environment around the receiving flask, making the coldness of dry ice more effective for steam condensation, further improving the utilization efficiency of dry ice. At the same time, stable installation ensures the position of the receiving flask fixed, and the steam can enter the flask more smoothly and condense fully, reducing the loss of steam in the transmission process, improving the effect of steam condensation, and thus improving the collection rate of the product.

[0025] Improve the versatility and scalability of the equipment: This convenient and stable installation design has good versatility and can adapt to receiving flasks of various specifications and materials, which provides convenience for different experimental or production needs without the need to specially customize complex installation equipment for different types of receiving flasks. At the same time, this design is convenient for equipment upgrading and expansion, and more functional modules such as condensation efficiency monitoring devices and steam flow adjustment devices can be easily added, further improving the performance and application range of the equipment.

[0026] 2、The receiving flask is designed to be a conical container, which has significant advantages in dry ice utilization efficiency, condensation effect improvement, operation convenience, space utilization and stability compared to square or hemispherical containers.

[0027] Improve the utilization efficiency of dry ice: The conical design of the conical part makes the dry ice more concentrated in the bottom of the receiving flask. Since the cold air generated by the sublimation of dry ice has a large density, it will naturally sink. The shape of the conical part guides the cold air to flow down the conical wall, which can more directly and efficiently act on the receiving flask, reducing heat loss and improving the cooling effect on the receiving flask, thereby improving the utilization efficiency of dry ice and reducing the cost of dry ice consumption.

[0028] Enhance condensation effect: The large amount of low-temperature gas generated by the sublimation of dry ice concentrated at the bottom of the receiving flask can form a more stable and low-temperature environment in the conical space. This stable low-temperature environment is conducive to the rapid and sufficient condensation of steam, improving the condensation efficiency of steam, making the collection of products more efficient, reducing the loss of steam escape, and improving the collection rate of products.

[0029] Convenient to clean and replace dry ice: The conical structure of the conical part makes it easier to clean dry ice. When it is necessary to replace dry ice, the remaining dry ice and melted water are more easily poured out of the conical part and are not easily left behind. Compared to the corner residues of square containers and the difficulty of thorough cleaning of hemispherical containers, the conical state of the conical part can reduce dry ice residues, reduce cleaning difficulty, and improve the convenience and efficiency of operation.

[0030] Improve the safety of operation: the shape of the cone reduces the contact area between the operator's hand and the dry ice during the addition and replacement of dry ice. Because the temperature of dry ice is extremely low, reducing the contact area can reduce the risk of frostbite for the operator, improving the safety of the operation process.

[0031] 3、The whole design of the application can bring the following benefits to the work: simplify the operation process: the operator does not need to manually contact the dry ice for filling, but only needs to use the signal given by the temperature sensor to make the pushing rod make the pushing bar reciprocate in the delivery cavity. Straight line movement, the dry ice delivery and filling process can be completed, which greatly simplifies the operation process and saves time and labor cost.

[0032] Enhance safety and avoid the risk of frostbite: the operator does not need to directly contact the dry ice, which eliminates the risk of frostbite caused by contacting the dry ice and ensures the safety of the operator; at the same time, the safety of the protective shell composed of the first and second buckling members and the heat insulation cotton placement arc groove and the rubber buffer groove is increased, which effectively prevents the explosion risk caused by high-pressure gas generated by dry ice sublimation and the fire hazard caused by dry ice leakage.

[0033] Improve the utilization rate of dry ice and reduce the loss of dry ice sublimation: the double-layer heat insulation structure composed of the heat insulation cotton placement arc groove and the rubber buffer groove can greatly reduce the sublimation speed of dry ice during use, reducing the waste of dry ice. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 The appearance drawing of the application;

[0035] Figure 2 The front view of the application;

[0036] Figure 3 The structure diagram of the first buckling member, heat insulation cotton placement arc groove, rubber buffer groove and cone of the application;

[0037] Figure 4 The distribution diagram of the related structure position of the receiving flask and the cone of the application;

[0038] Figure 5 The related structure diagram of the receiving flask, the first buckling member, the second buckling member and the buckling ball cavity of the application;

[0039] Figure 6 The state diagram of the dry ice filling assembly of the application when working;

[0040] Figure 7 The cross-sectional top view of the delivery cavity of the application.

[0041] In the figure:

[0042] 1, heating box; 2, distillation flask; 3, receiving flask; 4, auxiliary instrument;

[0043] 5, protection assembly; 501, first fastening member; 502, magnet group A; 503, heat insulation cotton placement arc groove; 504, rubber buffer groove; 505, half-arc threaded cavity A; 506, second fastening member; 507, magnet group B; 508, fastening ball cavity; 509, half-arc threaded cavity B; 510, screw adjusting base;

[0044] 6, dry ice filling assembly; 601, transmission cavity; 602, filling strip opening; 603, pushing strip; 604, pushing rod; 605, spring; 606, connecting strip; 607, dry ice storage bin; 608, temperature sensor; 609, conical member; 610, separation net; 611, air release opening; 612, air inlet opening; 613, blocking separation strip. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0046] The present application will be described in further detail below according to the drawings and embodiments.

[0047] Embodiment: please refer to Figures 1 to 5 the figure:

[0048] To solve the problems mentioned in the technical scheme, the embodiment of the present application provides a micro sample distillation instrument, which comprises a heating box 1, a distillation flask 2 placed in the heating box 1, a receiving flask 3 inserted on one side of the distillation flask 2, an auxiliary instrument 4 arranged on one side of the receiving flask 3, a protection assembly 5 and a dry ice filling assembly 6 arranged between the heating box 1 and the auxiliary instrument 4, and the dry ice filling assembly 6 is located in front of the protection assembly 5; the protection assembly 5 is used to ensure the safety of personnel during purification condensation; the protection assembly 5 comprises a first buckling part 501 buckled on one side of the receiving flask 3, a magnet group A 502 fixedly connected to the first buckling part 501, an arc groove 503 formed in the first buckling part 501, a rubber buffer groove 504 formed in the first buckling part 501, a semi-arc threaded cavity A 505 fixedly connected to the bottom end surface of the first buckling part 501, a second buckling part 506 buckled on the other side of the receiving flask 3, a magnet group B 507 fixedly connected to the second buckling part 506, a buckling ball cavity 508 formed by buckling the first buckling part 501 and the second buckling part 506, a semi-arc threaded cavity B 509 fixedly connected to the bottom end surface of the second buckling part 506, and the semi-arc threaded cavity A 505 and the semi-arc threaded cavity B 509 can form a threaded nipple cavity; a spiral adjusting base 510 is placed on one side of the heating box 1, and the threaded nipple cavity formed by the semi-arc threaded cavity A 505 and the semi-arc threaded cavity B 509 is threadedly matched with the spiral adjusting base 510.

[0049] Wherein:

[0050] The protection assembly 5 is used to ensure the safety of personnel during purification condensation.

[0051] The magnet group A 502 is used in cooperation with the magnet group B 507.

[0052] In use, the receiving flask 3 is stably clamped in the buckling ball cavity 508.

[0053] The spiral adjusting base 510 is mainly used in cooperation with the threaded nipple cavity formed by the semi-arc threaded cavity A 505 and the buckling ball cavity 508, so as to adjust the overall height of the device.

[0054] Further embodiments: please refer to Figures 5 to 7 as shown:

[0055] The dry ice filling assembly 6 is used to assist the operator to conveniently and safely fill dry ice during purification condensation. The dry ice filling assembly 6 comprises a transmission cavity 601 fixedly connected to the second buckling member 506, an filling strip opening 602 is formed in the transmission cavity 601, a pushing strip 603 is slidably connected in the transmission cavity 601, a pushing rod 604 is fixedly connected to the pushing strip 603, a spring 605 is fixedly connected to the outer end face of the transmission cavity 601, a connecting strip 606 is fixedly connected to the outer end of the spring 605, a dry ice storage bin 607 is fixedly connected to the transmission cavity 601, a temperature sensor 608 is fixedly connected in the buckling ball cavity 508, a conical member 609 is fixedly connected in the buckling ball cavity 508, a screen 610 is fixedly connected to the bottom end of the conical member 609, a gas vent 611 is formed in the second buckling member 506, and a gas inlet opening 612 is formed in the second buckling member 506. The gas inlet opening 612 is fixedly connected with a blocking partition strip 613.

[0056] Wherein:

[0057] The dry ice filling assembly 6 is used to assist the operator to conveniently and safely fill dry ice during purification condensation.

[0058] The temperature sensor 608 is mainly used for monitoring the temperature in the buckling ball cavity 508, so as to remind the relevant personnel to supplement the dry ice through the external prompter.

[0059] The dry ice vapor in the conical member 609 rises and quickly enters the receiving flask 3 which is usually placed in a cooling environment such as a dry ice bath. The vapor is quickly condensed into liquid at low temperature, so as to obtain the evaporated product.

[0060] The screen 610 is used to prevent the dry ice in the conical member 609 from falling from the bottom end thereof.

[0061] When the dry ice needs to be replaced, the residual dry ice and the melted water are more easily transferred through the gas vent 611 and are not easy to remain.

[0062] The blocking partition strip 613 is mainly used to ensure that the dry ice in the transmission cavity 601 does not enter the conical member 609 through the gas inlet opening 612 during non-pushing of the dry ice.

[0063] The working principle of all the above embodiments is as follows:

[0064] In the initial state:

[0065] The heat insulation cotton placed in the arc groove 503 is used to maintain the temperature of the dry ice in the conical part 609, and the rubber buffer groove 504 is provided with a rubber strip. Due to the adsorption of the magnet group A 502 and the magnet group B 507, the threaded hole cavity composed of the semi-arc threaded cavity A 505 and the threaded ball cavity 508 located below the first buckling part 501 and the second buckling part 506 is in threaded cooperation with the screw adjusting base 510. The dry ice storage bin 607 is provided with dry ice; the filling strip 602 is blocked by the push strip 603, and the spring 605 is in an unstressed state.

[0066] The working process of the protection assembly 5 is as follows:

[0067] In use, the first buckling part 501 and the second buckling part 506 are magnetically attracted by the magnet group A 502 and the magnet group B 507 provided thereon, and the threaded ball cavity 508 formed thereby can cover the receiving flask 3. Further, when the dry ice in the conical part 609 is used to cool the steam in the receiving flask 3, the dry ice temperature in the conical part 609 will not cause harm to external personnel due to the heat insulation cotton placed in the arc groove 503. In addition, the rubber strip in the rubber buffer groove 504 can be used as a buffer layer to absorb possible dry ice impact, preventing the dry ice from impacting the first buckling part 501 and the magnet group A 502 and causing breakage and splashing;

[0068] Further, by adding the magnet group, the first buckling part 501 and the second buckling part 506 can be effectively closed, providing conditions for the steam condensation work of the receiving flask 3 and enhancing the installation convenience. The use of the magnet group greatly simplifies the installation process of the receiving flask 3, avoiding the need for tedious tightening, buckling and other operations in the prior art. Now, the first buckling part 501 with the receiving flask 3 is placed near the corresponding position of the second buckling part 506, and the attractive force of the magnet group A 502 and the magnet group B 507 can quickly guide the precise docking and close of the two, which greatly saves the operation time and improves the work efficiency in the experimental or production scene where the receiving flask 3 needs to be frequently replaced. Moreover, even in a limited space and inconvenient environment, the automatic adsorption characteristics of the magnet can make it easy for the operator to complete the installation, reducing the operation difficulty and being more friendly to novice operators.

[0069] Stability of the lifting device: The strong attractive force generated by the magnet group ensures that the first and second buckling members 501, 506 fit tightly, so that the receiving flask 3 is firmly fixed during the entire steam condensation process. This effectively avoids the situation that the receiving flask 3 is loose or falls off due to device vibration, external force collision factors, and ensures the continuity of steam condensation work. In a complex environment, such as a production workshop with machine vibration and frequent personnel movement, stable installation can prevent steam leakage and poor condensation effect caused by flask shaking, ensuring the collection efficiency and quality of the product;

[0070] Optimizing steam condensation effect: The tightly closed first and second buckling members 501, 506 cooperate with the sealing effect of the magnet group to reduce the entry of external heat. During the steam condensation process, this helps to maintain a low temperature environment around the receiving flask 3, so that the coldness of dry ice is more effectively used for steam condensation, further improving the utilization efficiency of dry ice. At the same time, stable installation ensures that the receiving flask 3 is fixed in position, and steam can enter the flask more smoothly and condense fully, reducing the loss of steam during transmission and improving the effect of steam condensation, thereby improving the collection rate of the product;

[0071] Improving the versatility and scalability of the equipment: This convenient and stable installation design has good versatility and can adapt to receiving flasks 3 of various specifications and materials, which provides convenience for different experimental or production needs without the need to specially customize complex installation equipment for different types of receiving flasks 3. At the same time, this design is convenient for equipment upgrading and expansion, and more functional modules such as condensation efficiency monitoring devices and steam flow regulating devices can be easily added, further improving the performance and application range of the equipment.

[0072] The above working process is described in detail in the patent specification Figures 1 to 5 .

[0073] The following is the working process of the dry ice filling assembly 6:

[0074] Further, when the temperature sensor 608 detects that the temperature of the conical part 609 in the ball cavity 508 is lower than the required process requirement during the detection, the temperature sensor 608 will remind the relevant personnel to supplement the dry ice through the external prompter at this time. At this time, the relevant personnel only need to pull the connecting strip 606, and the connecting strip 606 will pull the filling strip opening 602 through the fixed connection of the push rod 604, so that the push strip 603 originally blocking the filling strip opening 602 unblocks the filling strip opening 602. At this time, the spring 605 is stretched, and the dry ice in the dry ice storage bin 607 will fall into the transfer cavity 601 through the filling strip opening 602. Further, at this time, the push rod 604 is pushed, and the push rod 604 will push the dry ice in the transfer cavity 601 to the second fastening part 506 direction with the push strip 603. At this time, the spring 605 is compressed, and further, with the pushing of the push strip 603, the dry ice will finally pass through the air inlet 612 and break the blocking of the blocking partition 613 to enter the conical part 609 in the ball cavity 508 composed of the first fastening part 501 and the second fastening part 506, so as to complete the filling of the dry ice.

[0075] Further, by designing the dry ice storage container under the receiving flask 3 into a conical container, the utilization efficiency of dry ice can be improved. The conical design of the conical part 609 makes the dry ice more concentrated in the bottom of the receiving flask 3 in the container. Because the cold air generated by the sublimation of dry ice has a large density, it will naturally sink. The shape of the conical part 609 guides the cold air to flow downward along the conical wall, which can more directly and efficiently act on the receiving flask 3, reduce heat loss, improve the cooling effect on the receiving flask 3, and thus improve the utilization efficiency of dry ice and reduce the cost of dry ice consumption.

[0076] Enhance condensation effect: The large amount of low-temperature gas generated by the sublimation of dry ice concentrated in the bottom of the receiving flask 3 can form a more stable and low-temperature environment in the conical space. This stable low-temperature environment is conducive to the more rapid and sufficient condensation of steam, improves the condensation efficiency of steam, makes the collection of products more efficient, reduces the loss of steam escape, and improves the collection rate of products.

[0077] Convenient to clean and replace dry ice: The conical structure of the conical part 609 makes it more convenient to clean dry ice. When it is necessary to replace dry ice, the remaining dry ice and melted water are more easily poured out of the conical part 609 and are not easy to remain. Compared with the corner residues existing in square containers and the difficulty in thoroughly cleaning the semi-spherical containers, the conical state of the conical part 609 can reduce dry ice residues, reduce cleaning difficulty, improve the convenience and efficiency of operation.

[0078] Improve the safety of operation: in the process of adding and replacing dry ice, the shape of the cone 609 reduces the contact area between the operator's hand and the dry ice. Because the temperature of dry ice is extremely low, reducing the contact area can reduce the risk of frostbite for the operator, improving the safety of the operation process.

[0079] The above working process please refer to Figures 5 to 7 .

[0080] Further, through the overall design, it can simplify the operation process; the operator no longer needs to manually contact the dry ice for filling, but only needs to give the signal through the temperature sensor 608, and through the push rod 604 to make the push bar 603 reciprocate linearly in the transmission cavity 601, so as to complete the delivery and filling process of the dry ice, greatly simplifying the operation process, saving time and labor cost;

[0081] Enhance safety and avoid the risk of frostbite: the operator does not need to directly contact the dry ice, eliminating the risk of frostbite caused by contacting the dry ice, and protecting the personal safety of the operator; at the same time, the safe addition of the protective shell composed of the first buckling member 501 and the second buckling member 506 and the heat insulation cotton placement arc groove 503 and the rubber buffer groove 504 effectively prevent the explosion risk caused by the high-pressure gas generated by the sublimation of dry ice, and the fire hazard caused by dry ice leakage;

[0082] Improve the utilization rate of dry ice and reduce the sublimation loss of dry ice: the double-layer heat insulation structure composed of the heat insulation cotton placement arc groove 503 and the rubber buffer groove 504 can greatly reduce the sublimation speed of dry ice during use, reducing the waste of dry ice.

[0083] It should be noted that in this text, relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a…" does not exclude the presence of another identical element in the process, method, article or equipment including the element.

[0084] Although embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A micro-sample distillation apparatus, including: A heating chamber (1) is characterized in that: a distillation flask (2) is placed inside the heating chamber (1), a receiving flask (3) is inserted into one side of the distillation flask (2), an auxiliary device (4) is provided on one side of the receiving flask (3), a protective component (5) and a dry ice filling component (6) are provided between the heating chamber (1) and the auxiliary device (4), and the dry ice filling component (6) is located in front of the protective component (5); the protective component (5) is used to ensure personnel safety during purification and condensation; the dry ice filling component (6) is used to assist operators in conveniently and safely filling dry ice during purification and condensation; The protective component (5) includes a first fastening member (501) fastened to one side of the receiving flask (3), a magnet group A (502) is fixedly connected to the first fastening member (501), a heat insulation cotton placement arc groove (503) is opened on the first fastening member (501), and a rubber buffer groove (504) is spaced apart on the first fastening member (501). The bottom end face of the first fastening member (501) is fixedly connected to a semi-arc threaded cavity A (505), and the other side of the receiving flask (3) is fastened to a second fastening member (506). A magnet group B (507) is fixedly connected to the second fastening member (506). The first fastening member (501) and the second fastening member (506) fasten to form a fastening ball cavity (508). The second fastener (506) has a semi-arc threaded cavity B (509) fixedly connected to its bottom end surface. The semi-arc threaded cavity A (505) and the semi-arc threaded cavity B (509) form a threaded mouth. A spiral adjustment base (510) is placed on one side of the heating box (1). The semi-arc threaded cavity A (505) and the semi-arc threaded cavity B (509) form a threaded mouth that is threadedly matched with the spiral adjustment base (510). The dry ice filling assembly (6) includes a transfer cavity (601) fixedly connected to the second fastener (506), and the transfer cavity (601) has a filling slot (602).

2. The micro-sample distillation apparatus according to claim 1, characterized in that: A push bar (603) is slidably connected inside the transmission cavity (601), a push rod (604) is fixedly connected to the push bar (603), a spring (605) is fixedly connected to the outer end face of the transmission cavity (601), and a connecting bar (606) is fixedly connected to the outer end of the spring (605).

3. The micro-sample distillation apparatus according to claim 1, characterized in that: A dry ice storage chamber (607) is fixedly connected to the transfer cavity (601).

4. The micro-sample distillation apparatus according to claim 1, characterized in that: A temperature sensor (608) is fixedly connected inside the snap-fit ​​ball cavity (508), a conical piece (609) is fixedly connected inside the snap-fit ​​ball cavity (508), a mesh (610) is fixedly connected to the bottom end of the conical piece (609), and a through vent (611) is provided on the second snap-fit ​​piece (506).

5. The micro-sample distillation apparatus according to claim 1, characterized in that: The second fastener (506) has a through air inlet (612), and a sealing strip (613) is fixedly connected to the air inlet (612).

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