Freeze-drying glass instrument for laboratory
By connecting the freeze-drying flask to the experimental flask via an oil pump, rapid freezing is achieved using a mixture of dry ice and acetone. The experimental flask is then slowly rotated in a liquid nitrogen dish to form a thin layer of solid. This method solves the problems of low cold energy transfer efficiency and uneven sample distribution in traditional freeze-drying instruments, achieving a highly efficient and energy-saving freezing effect.
Patent Information
- Application Number
- CN202520489395.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-03-20
AI Technical Summary
Traditional freeze-drying instruments separate the liquid nitrogen cooling system from the sample vials, resulting in low cold transfer efficiency, high energy consumption, uneven freezing of samples, and easy breakage.
An oil pump was used to connect the freeze-drying flask to the experimental flask. A mixture of dry ice and acetone was used for rapid freezing, and vacuum grease was used to improve the seal. The experimental flask was slowly rotated in a liquid nitrogen dish to form a thin layer of solid to prevent breakage.
It improves freezing uniformity, reduces energy consumption, prevents experimental vials from breaking, and enhances freezing efficiency.
Smart Images
Figure CN223901885U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to experimental apparatus field especially, it relates to a laboratory freeze drying glass apparatus. BACKGROUND
[0002] Freeze drying technology is widely used in the dehydration treatment of heat-sensitive samples in the laboratory. In the prior art, the common freeze drying instrument adopts metal pipeline and centralized condensation structure. The liquid nitrogen cooling system of the traditional equipment is separated from the sample bottle, which leads to low cold quantity transmission efficiency and high energy consumption. Therefore, there is an urgent need for a laboratory freeze drying instrument with compact structure, uniform freezing and strong sealing. Based on this, we propose a laboratory freeze drying glass apparatus. SUMMARY
[0003] To solve the technical problem of low cold quantity transmission efficiency caused by the separation of the liquid nitrogen cooling system of the traditional equipment and the sample bottle, the utility model provides a laboratory freeze drying glass apparatus.
[0004] The utility model adopts the following technical scheme to realize: a laboratory freeze drying glass apparatus, including oil pump, one end of connecting pipe is connected on the outside of oil pump, the other end of connecting pipe is connected with freeze drying bottle, and the connecting place of connecting pipe and freeze drying bottle is provided with joint; the bottom end of freeze drying bottle extends outward and is connected with freeze pipe, the outside of freeze pipe is connected with experimental bottle, the bottom center of freeze drying bottle is connected with communicating head vertically downward, and the bottom end of communicating head is communicated with round bottle through detachable interface.
[0005] Three groups of freeze pipes are connected with three groups of experimental bottles, then the mixture of dry ice and acetone is poured into the freeze drying bottle, then the oil pump works, and the connecting pipe is communicated, which helps the rapid freezing of the mixture of dry ice and acetone in the freeze drying bottle, ensures that each sample in the three groups of experimental bottles is independently cooled, and improves the freezing uniformity.
[0006] As a further improvement of the above scheme, three groups of freeze pipes are connected with three groups of experimental bottles, which ensures that each sample is independently cooled and improves the freezing uniformity.
[0007] As a further improvement of the above scheme, the end of the freeze pipe is coated with vacuum grease to improve the sealing degree when the freeze pipe is communicated with the experimental bottle.
[0008] As a further improvement of the above scheme, the freeze pipe is provided with three groups, and the three groups of freeze pipes are connected outside the bottom end of the freeze drying bottle. The number of experimental bottles matches the freeze pipes.
[0009] As a further improvement of the above scheme, the experimental bottle is placed in the interior of the liquid nitrogen vessel, and the interior of the liquid nitrogen vessel contains liquid nitrogen. The liquid to be frozen is placed in the interior of the experimental bottle, the worker holds the experimental bottle flat, the liquid in the experimental bottle adheres to the inner wall thereof, the experimental bottle is placed in the interior of the liquid nitrogen vessel, the worker slowly rotates the experimental bottle, and the liquid in the experimental bottle adheres to the inner wall thereof and slowly condenses under the action of the liquid nitrogen in the liquid nitrogen vessel, so that the liquid forms a thin layer of solid in the experimental bottle, and the experimental bottle can better adapt to subsequent freezing and prevent the experimental bottle from being directly frozen and broken.
[0010] Compared with the prior art, the utility model has the beneficial effects that:
[0011] 1、 The utility model discloses a refrigeration drying bottle bottom connecting structure, which is connected with the refrigeration drying bottle through the connecting pipe, and is connected with the liquid nitrogen vessel through the joint, so that the refrigeration drying bottle can be directly connected with the liquid nitrogen vessel, and the liquid nitrogen in the liquid nitrogen vessel can be directly introduced into the refrigeration drying bottle, so that the liquid in the refrigeration drying bottle can be quickly frozen.
[0012] 2、 The utility model discloses a refrigeration drying bottle bottom connecting structure, which is connected with the refrigeration drying bottle through the connecting pipe, and is connected with the liquid nitrogen vessel through the joint, so that the refrigeration drying bottle can be directly connected with the liquid nitrogen vessel, and the liquid nitrogen in the liquid nitrogen vessel can be directly introduced into the refrigeration drying bottle, so that the liquid in the refrigeration drying bottle can be quickly frozen. BRIEF DESCRIPTION OF DRAWINGS
[0013] Fig. 1 It is a whole structure schematic view of the utility model;
[0014] Fig. 2 It is a liquid nitrogen vessel connecting structure schematic view of the utility model;
[0015] Fig. 3 It is a refrigeration drying bottle bottom connecting structure schematic view of the utility model.
[0016] MAIN SYMBOL DESCRIPTION:
[0017] 1、 Oil pump;2、 Connecting pipe;3、 Joint;4、 Refrigeration drying bottle;5、 Refrigeration pipeline;6、 Experimental bottle;7、 Communication head;8、 Round bottle;9、 Liquid nitrogen vessel. DETAILED DESCRIPTION
[0018] In the following, the utility model is further described in combination with the drawings and specific embodiments, and it should be noted that the following described embodiments or technical features can be combined to form new embodiments without conflict. Embodiment 1:
[0019] Please combine Figs. 1-3The embodiment provides a laboratory freeze-drying glass instrument, which comprises an oil pump 1, one end of a connecting pipe 2 is connected to the outer side of the oil pump 1, the other end of the connecting pipe 2 is connected with a freeze-drying bottle 4, and a joint 3 is arranged at the connecting position of the connecting pipe 2 and the freeze-drying bottle 4; the bottom end of the freeze-drying bottle 4 extends outward and is connected with a freeze pipe 5, the outer side of the freeze pipe 5 is connected with a test bottle 6, the bottom center of the freeze-drying bottle 4 is vertically connected with a communicating head 7, and the bottom end of the communicating head 7 is communicated with a circular bottle 8 through a detachable interface.
[0020] It should be noted that the three groups of freeze pipes 5 are connected with the three groups of test bottles 6 respectively, so that each sample is independently cooled, and the freezing uniformity is improved.
[0021] More specifically, the three groups of freeze pipes 5 are connected with the three groups of test bottles 6 respectively, then the mixed solution of dry ice and acetone is poured into the freeze-drying bottle 4, then the oil pump 1 is worked to help the rapid freezing of the mixed solution of dry ice and acetone in the freeze-drying bottle 4 in communication with the connecting pipe 2, so that each sample in the three groups of test bottles 6 is independently cooled, and the freezing uniformity is improved.
[0022] It should be noted that the pipe end of the freeze pipe 5 is smeared with vacuum grease, so that the sealing degree when the freeze pipe 5 is communicated with the test bottle 6 is improved.
[0023] It should be noted that the freeze pipe 5 is provided with three groups, the three groups of freeze pipes 5 are connected to the outer side of the bottom end of the freeze-drying bottle 4, and the number of the test bottles 6 is matched with the freeze pipes 5.
[0024] Further, the test bottle 6 is placed in the liquid nitrogen vessel 9, and the liquid nitrogen vessel 9 contains liquid nitrogen.
[0025] Specifically, the test bottle 6 contains a liquid to be frozen, a worker holds the test bottle 6 horizontally, the liquid in the test bottle 6 adheres to the inner wall of the test bottle 6, the test bottle 6 is placed in the liquid nitrogen vessel 9, the worker slowly rotates the test bottle 6, the liquid in the test bottle 6 adheres to the inner wall of the test bottle 6 and slowly condenses under the action of the liquid nitrogen in the liquid nitrogen vessel 9, so that the liquid in the test bottle 6 forms a thin layer of solid, and the test bottle 6 can better adapt to subsequent freezing and prevent the test bottle 6 from being directly frozen and broken.
[0026] The specific implementation steps of the utility model are as follows:
[0027] In use, the experimental bottle 6 is placed inside the liquid to be frozen, the worker holds the experimental bottle 6 flat, the liquid in the experimental bottle 6 adheres to the inner wall, the experimental bottle 6 is placed in the liquid nitrogen dish 9, the worker slowly rotates the experimental bottle 6, the liquid in the experimental bottle 6 adheres to the inner wall and slowly condenses under the action of the liquid nitrogen in the liquid nitrogen dish 9, so that the liquid in the experimental bottle 6 forms a thin layer of solid, so that the experimental bottle 6 can better adapt to subsequent freezing, and prevent the experimental bottle 6 from cracking directly after freezing;
[0028] After the freezing of the experimental bottle 6 is completed, the vacuum grease is first applied to the pipe end of the freezing pipeline 5 to improve the sealing degree when the freezing pipeline 5 is connected with the experimental bottle 6, three groups of freezing pipelines 5 are connected with three groups of experimental bottles 6, then the mixed liquid of dry ice and acetone is poured into the freeze-drying bottle 4, then the oil pump 1 is connected with the connecting pipe 2 to help the rapid freezing of the mixed liquid of dry ice and acetone in the freeze-drying bottle 4, and ensure that each sample in the three groups of experimental bottles 6 is independently cooled to improve the freezing uniformity.
[0029] The above embodiments are only preferred embodiments of the present application, and cannot be used to limit the scope of protection of the present application. Any non-substantial changes and replacements made by those skilled in the art on the basis of the present application shall fall within the scope of protection of the present application.
Claims
1. A laboratory lyophilization glassware characterized in that, The utility model provides an oil pump (1) is connected with one end of connecting pipe (2) outside, the other end of connecting pipe (2) is connected with freeze drying bottle (4), and the connecting place of connecting pipe (2) and freeze drying bottle (4) is provided with joint (3);The bottom end of freeze drying bottle (4) is connected with freeze pipeline (5) outside, and the outside of freeze pipeline (5) is connected with experimental bottle (6), and the bottom center of freeze drying bottle (4) is connected with communicating head (7) vertically downward, and the bottom end of communicating head (7) is communicated with circular bottle (8) through detachable interface.
2. A freeze-drying glassware for laboratory use according to claim 1, characterized in that, The freeze pipeline (5) is provided with three groups, and the three groups of freeze pipeline (5) are connected outside the bottom end of the freeze drying bottle (4), and the number of the experimental bottle (6) matches the freeze pipeline (5).
3. A freeze-drying glassware for laboratory use according to claim 1, characterized in that, The experimental bottle (6) is placed in the liquid nitrogen vessel (9), and the liquid nitrogen vessel (9) contains liquid nitrogen.
4. A freeze-drying glassware for laboratory use according to claim 1, characterized in that, The three groups of freeze pipeline (5) are connected with three groups of experimental bottle (6) respectively, ensuring that each sample is independently cooled, and improving the freezing uniformity.
5. A freeze-drying glassware for laboratory use according to claim 1, characterized in that, The end of the freeze pipeline (5) is coated with vacuum grease.