CN217843471U - Portable kettle type dewar - Google Patents

Abstract

The utility model discloses a convenient pot-type Dewar, which comprises a pot outside the pot and a pot inside the pot inside the pot outside the pot. The inner cavity is connected, the upper end of the spout is provided with a spout plug, the side of the spout is provided with a spout, and the port of the spout is provided with a spout cover; the area between the outer tank of the jug and the inner tank of the jug is a vacuum area, and the inner tank of the jug is a vacuum area. A support frame is provided at the bottom of the tank to support the inner tank of the kettle, and heat insulating material is filled in the position of the vacuum area and the support frame, and a handle is provided on the side of the outer tank of the kettle. In this scheme, the spout and the spout are located on the upper part of the outer tank of the jug, and the liquid nitrogen storage capacity is relatively large, and it is not easy to overflow; the inside of the inner tank of the jug is designed with a partition plate to prevent shock and shaking during transfer, so that the liquid nitrogen transfer process It is more stable in the middle, and the internal pressure monitoring and air release valve are set at the same time to ensure the safety during use and transfer; the inner tank of the jug is supported by a support frame, and the whole is more stable.

Description

A convenient pot-type Dewar

technical field

The utility model relates to the technical field of liquid nitrogen dewars, in particular to a convenient pot-type dewar.

Background technique

Laboratories usually use large liquid nitrogen storage tanks to store a large amount of liquid nitrogen, and a small amount of liquid nitrogen needs to be stored and taken during the sample preparation process. At present, most experimenters use thermos pots to take a small amount of liquid nitrogen. And storage tools, but most of the commercial insulation pots are suitable for high-temperature liquid use design, not suitable for liquid nitrogen temperature use.

At present, there are storage tanks specially used for liquid nitrogen. For example, the patent with the publication number CN 203363651 U discloses a teapot-type liquid nitrogen tank. However, in this solution, the mouth of the pot is located at the lower part of the device, and the storage capacity of liquid nitrogen is limited. , and it is easy to overflow; on the other hand, the internal cavity is suspended, and the bearing capacity is limited to a certain extent.

Contents of the invention

Aiming at the technical problems existing at present, the utility model provides a convenient pot-type Dewar to solve the problems of the prior art.

In order to achieve the above-mentioned purpose of the invention, the utility model provides the following technical solutions:

A convenient pot-type Dewar, comprising a pot outside the pot and a pot inside the pot inside the pot outside the pot, the upper end of the outside pot is provided with a spout, and the spout communicates with the inner cavity of the inside pot , the upper end of the spout is provided with a spout plug, the side of the spout is provided with a spout, the spout adopts an upward design, and the port of the spout is provided with a spout cover;

The area between the outer tank of the kettle and the inner tank of the kettle is a vacuum zone, and a support frame is set at the bottom of the outer tank of the kettle to support the inner tank of the kettle, and heat insulating materials are filled in the position of the vacuum zone and the support frame, A handle is arranged on the side of the outer tank of the kettle.

Preferably, a pressure gauge is provided inside the spout for monitoring the pressure inside the jug, and a pressure relief valve is provided on the spout.

Preferably, a partition plate is distributed in the inner cavity of the tank in the kettle body, and the partition plate divides the inner cavity of the tank in the kettle body into different regions, and the upper end and the lower end of the partition plate are respectively connected to the There is a space between the upper end and the lower end of the tank in the kettle body.

Preferably, the entire spout is designed in a tapered shape.

Preferably, an external thread is provided at the port of the spout, and the spout cover is connected to the spout through the external thread.

Compared with the prior art, the utility model has the beneficial effects: (1) The spout and the spout are arranged on the upper part of the outer tank of the pot, the storage capacity of liquid nitrogen is relatively large, and it is not easy to overflow, so it is easy to be carried by a single person;

(2) The interior of the pot body adopts a partition design to prevent shock and shaking during transfer, making the transfer process of liquid nitrogen more stable. At the same time, an internal pressure monitoring and vent valve are set to ensure safety during use and transfer ;

(3) The inner tank of the kettle is supported by a support frame, which is more stable as a whole, and the area between the outer tank of the kettle and the inner tank of the kettle and the support frame are filled with heat insulating materials to enhance the thermal insulation performance.

Description of drawings:

Fig. 1 is the overall structural representation of the utility model;

FIG. 2 is an internal sectional view of FIG. 1 .

Detailed ways

The utility model will be further described in detail below in conjunction with test examples and specific embodiments. However, it should not be understood that the scope of the above-mentioned themes of the present utility model is limited to the following embodiments, and all technologies realized based on the content of the present utility model belong to the scope of the present utility model.

In describing the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical" , "horizontal", "top", "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the present invention.

In the description of the present utility model, unless otherwise stipulated and limited, it should be noted that the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be The internal communication between two elements may be direct connection or indirect connection through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms according to specific situations.

A convenient pot-type Dewar as shown in accompanying drawing 1-accompanying drawing 2, comprises kettle outer tank 1 and the kettle inner tank 6 that is arranged inside this kettle outer tank 1, set support frame 7 at the bottom of kettle outer tank 1 and use To support the inner tank 6 of the kettle, the support frame 7 can adopt a cross bracket, and the area between the outer tank 1 of the kettle and the inner tank 6 of the kettle is a vacuum zone, and heat insulating materials are filled in the position of the vacuum zone and the support frame 7 to strengthen the device. thermal insulation performance and thermal insulation. A handle 5 is arranged on the side of the outer tank 1 of the jug, and the handle 5 adopts a composite ergonomic design, which is convenient for grabbing and carrying.

The upper end of the outer tank 1 of the kettle is provided with a spout 2, which communicates with the inner cavity of the inner tank 6 of the kettle, and the upper end of the spout 2 is provided with a spout 21, and the side of the spout 2 is provided with a spout 3. The spout 3 adopts an upward design, and the spout 3 has a conical design as a whole. The opening at the port is smaller than the opening at the junction with the spout 2, that is, the spout 3 is larger at the bottom and smaller at the top, which is conducive to the smooth flow of liquid nitrogen. The port of the spout 3 is provided with an external thread, and the spout cover 31 is connected with the spout 3 through the external thread. The spout 2 is deviated from the center of the upper end of the outer tank 1 of the jug, which is more conducive to the pouring of the liquid, and the liquid will not be inclined at an excessive angle when pouring the liquid.

A pressure gauge is arranged in the mouth of the kettle 2 and connected with an external pressure gauge for monitoring the pressure in the tank 6 inside the kettle body, and a pressure relief valve 4 is set on the mouth of the kettle 2 at the same time. It is convenient to monitor the pressure in the tank 6 in the kettle body after filling and sealing, to prevent the temperature rise during the transfer, the volatilization of liquid nitrogen caused by the shock, and other reasons to make the internal pressure too large. Once the pressure is found to be too high, the vent valve 4 can be opened to carry out Pressure regulation.

The inner cavity of the tank 6 in the kettle body is distributed with a partition plate 8, which divides the inner cavity of the tank 6 in the kettle body into different regions, and the upper end and the lower end of the partition plate 8 are respectively connected with the upper end of the tank 6 in the kettle body. There is a gap between the bottom and the bottom. In this way, during the transfer of liquid nitrogen, the liquid nitrogen inside the tank is more stable without violent shaking, which increases safety. At the same time, the upper and lower ends of the partition plate 8 do not touch the bottom, and a certain exchange space is reserved to ensure the circulation of liquid nitrogen, so that liquid nitrogen can flow smoothly during the process of taking liquid nitrogen.

The outer wall of the pot 1 and the handle 6 outside the kettle body can be covered with rubber for further heat preservation and anti-slip protection, and can also play a certain buffering role in the case of an accidental drop. The integral Dewar can also be matched with a customized portable leather case, which is convenient for carrying during the transfer process. The Dewar in this solution is not only suitable for the storage and transportation of liquid nitrogen, but also suitable for the short-term transfer and storage of other low-temperature and sensitive materials. The equipment is compact and convenient, and has high economic benefits.

The preferred specific embodiments of the present utility model have been described above. It should be understood that those skilled in the art can make many modifications and changes according to the concept of the utility model without creative efforts. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the scope of protection defined by the claims .

Claims (5)

1. The utility model provides a convenient kettle formula dewar, includes external jar of the kettle body (1) and locates internal jar of the kettle (6) of this external jar of the kettle body (1) inside, its characterized in that: the upper end of the kettle body outer tank (1) is provided with a kettle opening part (2), the kettle opening part (2) is communicated with the inner cavity of the kettle body inner tank (6), the upper end of the kettle opening part (2) is provided with a kettle opening plug (21), the side surface of the kettle opening part (2) is provided with a kettle nozzle (3), the kettle nozzle (3) adopts an upward-type design, and the port of the kettle nozzle (3) is provided with a kettle nozzle cover (31);

the kettle comprises a kettle body outer tank (1), a kettle body inner tank (6), a support frame (7) and a handle (5), wherein the area between the kettle body outer tank (1) and the kettle body inner tank (6) is a vacuum area, the support frame (7) is arranged at the bottom of the kettle body outer tank (1) and is used for supporting the kettle body inner tank (6), heat insulation materials are filled in the positions of the vacuum area and the support frame (7), and the handle (5) is arranged on the side surface of the kettle body outer tank (1).

2. The portable kettle-style dewar of claim 1, wherein: the kettle comprises a kettle body, wherein a kettle mouth (2) is internally provided with a pressure gauge for monitoring the pressure in an inner tank (6) of the kettle body, and the kettle mouth (2) is also provided with a pressure relief valve (4).

3. A portable kettle-style dewar according to claim 1 or 2, wherein: the inner cavity of the kettle body inner tank (6) is distributed with a partition plate (8), the partition plate (8) divides the inner cavity of the kettle body inner tank (6) into different areas, and the upper end and the lower end of the partition plate (8) are respectively spaced from the upper end and the lower end of the kettle body inner tank (6).

4. The portable kettle-style dewar of claim 1, wherein: the kettle mouth (3) is integrally designed in a conical shape.

5. The portable kettle-style dewar of claim 4, wherein: the port department of hu zui (3) establishes the external screw thread, hu zui lid (31) through this external screw thread with hu zui (3) are connected.

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