CN211593634U

CN211593634U - Vacuum bin

Info

Publication number: CN211593634U
Application number: CN202020042310.0U
Authority: CN
Inventors: 汪子归; 于海波; 陈玉柱; 郑小满; 胡运兴
Original assignee: Beijing Huanaco Innovation Co ltd
Current assignee: Beijing Huanaco Innovation Co ltd
Priority date: 2020-01-09
Filing date: 2020-01-09
Publication date: 2020-09-29
Anticipated expiration: 2030-01-09

Abstract

The utility model belongs to the field of gas storage of analytical instruments, in particular to a vacuum chamber, which comprises a shell, a cavity, a disc, a chassis, a cold plate and a refrigeration pipe; the cold disc and the refrigerating pipe are arranged in the cavity, and the disc is arranged on one side of the cavity and is vertical to the cavity; one side of the cold plate is connected with the refrigerating pipe, and the other side of the cold plate is connected with the chassis; the chassis is embedded in the disc, the disc and the disc are concentric circles, the disc is connected with the shell, and the disc, the chassis and the shell form a closed bin body. The utility model discloses a vacuum chamber leakproofness is good, and vacuum is high, has effectively avoided external environment and condition to the interference of refrigeration and circulation of gas.

Description

Vacuum bin

Technical Field

The utility model relates to an analytical instrument's gaseous field of storing, specifically speaking relate to a mainly used provides the good vacuum storehouse of gas path circulation, refrigeration effect under the high vacuum.

Background

In the process of gas analysis, the gas is required to be captured at very low temperature, and water and CO existing in the air are required to be captured₂Substances such as the nitrogen, the nitrogen and the like can be condensed at a lower temperature and are attached to the pipeline and the interface thereof, so that the pipeline and the interface thereof are blocked or even damaged for a long time, and the normal low-temperature sampling process is influenced; accordingly, when the temperature is raised, extra heat is needed to evaporate the substances, which indirectly causes heat loss, is difficult to accurately control the temperature, cannot realize real-time monitoring of temperature change, and finally causes great deviation of a test result.

The vacuum chamber provides a near vacuum environment, which is equivalent to applying a layer of barrier and is beneficial to gas sample introduction and storage; the high vacuum degree is created in good sealing, the gas circuit and the interface are prevented from being in contact with the external environment, the heat loss is reduced, and substances such as water in the air are prevented from blocking the interface to interfere with sampling and monitoring.

Disclosure of Invention

Compared with the prior art, the utility model, the advantage lies in providing the environment of high vacuum for the storehouse body for low temperature sampling, storage process are reliable and stable, have avoided calorific loss and external environment's interference and influence, have strengthened the efficiency of refrigeration and heating, have improved energy utilization, have strengthened the collection efficiency and the storage capacity of the material that awaits measuring.

In order to realize the technical problem, the utility model provides a vacuum chamber, which comprises a shell, a cavity, a disc, a chassis, a cold plate and a refrigeration pipe; the cold disc and the refrigerating pipe are arranged in the cavity, and the disc is arranged on one side of the cavity and is vertical to the cavity; one side of the cold plate is connected with the refrigerating pipe, and the other side of the cold plate is connected with the chassis; the chassis is embedded in the disc, the disc and the disc are concentric circles, the disc is connected with the shell, and the disc, the chassis and the shell form a closed bin body.

Preferably, a gasket is arranged at the joint of the disc and the shell.

Preferably, the surface of the disc is provided with a vacuum hole and a gas pipeline hole, and the vacuum hole is used for passing a vacuum tube; the gas pipeline hole is used for the passing of sampling gas in and out pipelines.

Preferably, the space between the gas pipeline hole and the sampling gas inlet and outlet pipeline and the space between the vacuum hole and the vacuum pipe are sealed by a polyether-ether-ketone resin material, so as to provide a closed environment.

Further preferably, the cold plate is circular and made of copper.

The utility model discloses an approximate vacuum environment in the vacuum chamber, no any external environment interference, whole low temperature sampling in-process gas circuit is unblocked, and the material that awaits measuring in the storehouse body is preserved stably, and it is rapid and accurate to heat up, cool down, and the degree of separation is high, and device stable in structure is reliable, and the equipment is simple and easy.

Drawings

Fig. 1 is a schematic structural view of a vacuum chamber according to the present invention.

In the figure: 1-a housing; 2-a chassis; 3-cooling the disc; 4-a cavity; 5-a disc; 6-a refrigeration interface; 7-gas line holes; 8-sampling gas inlet and outlet pipelines; 9-vacuum holes; 10-a refrigeration pipe; 11-washer.

Detailed Description

The embodiment of the application provides a vacuum chamber, and solves the technical problems that in the prior art, the sealing performance of a chamber body is poor in a low-temperature sampling process, refrigeration is slow and temperature control is inaccurate due to heat loss.

For the purpose of clearly understanding the technical solutions mentioned above, the detailed description will be given in conjunction with the drawings of the specification and the specific embodiments. The utility model relates to a vacuum chamber, which comprises a shell 1, a cavity 4, a disc 5, a chassis 2, a cold plate 3 and a refrigeration pipe 10; the cold plate 3 and the refrigerating pipe 10 are arranged in the cavity 4, and the disc 5 is arranged on one side of the cavity 4 and is perpendicular to the cavity 4; the cold plate 3 is connected with the refrigerating pipe 10 and the chassis 2 at one side; the chassis 2 is embedded in the disc 5 and is concentric with the disc 5, the disc 5 is connected with the shell 1, and the disc 5, the chassis 2 and the shell 1 form a closed bin body.

Refrigerant liquid enters the refrigeration pipe 10 through the refrigeration interface 6, and the temperature of the refrigeration pipe 10 is transferred to the chassis 2 through the cold plate 3, so that a low-temperature environment is provided for the vacuum chamber; the disc 5, the chassis 2 and the shell 1 form a closed bin body, and a high vacuum degree is provided for the bin body;

and a gasket 11 is arranged at the joint of the disc 5 and the shell 1 and used for ensuring the tightness of the bin body.

The surface of the disc 5 is provided with a vacuum hole 9 and a gas pipeline hole 7, and the vacuum hole 9 is used for the passing of a vacuum tube; the gas in the bin body is continuously discharged through a vacuum tube by a vacuum pump; the gas line aperture 7 is used for the passage of sample gas in and out of the line 8. The gas pipeline hole 7 and the sampling gas inlet and outlet pipeline 8, and the vacuum hole 9 and the vacuum tube are sealed by the polyether-ether-ketone resin material, so that gas is prevented from entering the bin body through the gap between the pipeline and the hole, and the vacuum environment in the bin body is further ensured.

The shape of cold dish 3 is circular, and the material is copper, has the biggest area under the same consumptive material, and the copper has good heat conductivility, provides the assurance for high-efficient refrigeration.

One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

in the vacuum chamber of the embodiment, the shell 1, the disc 5 and the chassis 2 are combined to form a sealed chamber body, the gas pipeline holes 7 and the vacuum holes 9 are arranged on the disc 5, and the gas pipeline holes 7 and the vacuum holes 9 are sealed by PEEK material with pipelines, in particular, a high vacuum degree is provided for the chamber body, and the stability during low-temperature sampling is ensured; the temperature of the refrigeration pipe 10 is transmitted to the chassis 2 through the cold plate 3, so that a low-temperature environment is provided for the bin body, the copper cold plate 3 improves the refrigeration efficiency by one step, and the low-temperature environment during sampling is ensured; furthermore, the interior of the bin body is approximate to a vacuum environment, no external environment interference exists, an air path is smooth and unobstructed in the whole low-temperature sampling process, the substances to be detected in the bin body are stably stored, the temperature rise and the temperature reduction are rapid and accurate, the separation degree is high, the device is stable and reliable in structure, and the assembly is simple and easy.

Finally, it should be noted that the above-mentioned embodiments are preferred embodiments of the present invention, and not limitations of the technical solution of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and of course, these improvements and decorations should also be considered within the protection scope of the present invention.

Claims

1. A vacuum chamber is characterized by comprising a shell, a cavity, a disc, a base plate, a cold disc and a refrigerating pipe; the cold disc and the refrigerating pipe are arranged in the cavity, and the disc is arranged on one side of the cavity and is vertical to the cavity; one side of the cold plate is connected with the refrigerating pipe, and the other side of the cold plate is connected with the chassis; the chassis is embedded in the disc, the disc and the disc are concentric circles, the disc is connected with the shell, and the disc, the chassis and the shell form a closed bin body.

2. The vacuum cartridge of claim 1, wherein a gasket is disposed at a junction of the disk and the housing.

3. The vacuum cartridge of claim 1, wherein said disk surface is provided with vacuum holes for the passage of vacuum tubes and gas line holes for the passage of sample gas in and out lines.

4. The vacuum chamber according to claim 3, wherein the gas pipeline hole and the sampling gas inlet and outlet pipeline, and the vacuum hole and the vacuum pipe are sealed by PEEK resin material for providing a sealed environment.

5. The vacuum cartridge of claim 1, wherein the cold plate is circular in shape and is made of copper.