CN213364162U

CN213364162U - Helium leak detector

Info

Publication number: CN213364162U
Application number: CN202022614266.9U
Authority: CN
Inventors: 徐琥值; 玄龙; 徐凯
Original assignee: Suzhou Yiyishi Electronic Materials Co ltd
Current assignee: Suzhou Yiyishi Electronic Materials Co ltd
Priority date: 2020-11-12
Filing date: 2020-11-12
Publication date: 2021-06-04
Anticipated expiration: 2030-11-12

Abstract

The utility model relates to a helium leak detector, including leak detector body (1), entry linkage dehumidification subassembly (2) of leak detector body (1), dehumidification subassembly (2) include vacuum pump (21), drying cabinet (22) set up the front end at vacuum pump (21), be provided with drier package (23) and filtering component (25) in drying cabinet (22), be provided with lid (29) on the casing lateral wall of vacuum pump (21), be provided with drying component (24) on the inner wall of lid (29). The utility model discloses filter the moisture, avoid direct suction helium leak detector, reduce the emergence of helium leak detector fault accident, increase the helium and pick up hourglass rate of accuracy, extension helium leak detector uses the maintenance cycle.

Description

Helium leak detector

Technical Field

The utility model relates to a helium leak detector.

Background

Because the helium gas has very little content in the air, the helium signal is amplified as much as possible without being influenced by other elements, so that very weak signals can be detected, and a very small leak can be detected. Because helium is inert gas, the helium mass spectrometer leak detection device has the characteristics of small molecule, light weight, diffusion, strong penetrability, quick and stable response, no chemical effect, no pollution to a detected piece, safe operation and the like, so that the helium mass spectrometer leak detection technology is emphasized and widely popularized and used.

The helium leak detector must be portable after 30 minutes of rest after it is turned off, in order to avoid collisions within the apparatus where the precision instruments do not completely shut down.

When the helium leak detector detects, air with high humidity is sucked, so that the helium leak detector can be damaged quickly.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects, the utility model aims to provide a helium leak detector which filters the moisture, avoids directly sucking into the helium leak detector, reduces the occurrence of helium leak detector fault accidents, increases the helium leak detection accuracy and prolongs the helium leak detector service maintenance period.

In order to achieve the above purpose, the utility model discloses a technical scheme is: the utility model provides a helium leak detector, includes the leak detector body, the entry linkage dehumidification subassembly of leak detector body, the dehumidification subassembly includes vacuum pump, drying cabinet, the drying cabinet sets up the front end at the vacuum pump, be provided with drier package and filtering component in the drying cabinet, be provided with the lid on the casing lateral wall of vacuum pump, be provided with drying component on the inner wall of lid.

The utility model discloses helium leak detector's beneficial effect is, so need install an enlarged leading vacuum pump additional when detecting the great air of humidity, the vacuum pump of installing additional can filter the moisture, avoids directly inhaling helium leak detector, reduces the emergence of helium leak detector fault accident, increases the helium and picks up the leak rate of accuracy, extension helium leak detector use maintenance cycle.

Preferably, a grid support is arranged in the drying box, the grid support is perpendicular to the air direction of the drying box, and the drying agent bag is bound on the grid support. The grid support is used for allowing air flow to pass through, and the desiccant bag on the grid support is used for adsorbing moisture in the air.

Preferably, the grid support is inserted into the drying oven, and a sealing member is arranged between the grid support and the drying oven. The desiccant bag on the grid support is convenient to replace by adopting an inserting connection mode.

Preferably, the inner wall of drying cabinet is provided with heating element, heating element is the annular setting, be provided with the switch on the outer wall of drying cabinet, the switch setting is on the outer wall of drying cabinet, the switch is connected with heating element. The heating component is controlled by the switch, whether the heating component is started or not can be selected according to requirements, and the arrangement of the heating component is used for drying air, so that the moisture in the air is further reduced.

Preferably, the filter assemblies are located at the front end of the drying agent bag and perpendicular to the air direction of the drying box, at least two groups of filter assemblies are arranged, and the filter pore sizes of the two groups of filter assemblies are gradually reduced. For filtering dust impurities in the air.

Preferably, the support of the filtering assembly is inserted into the drying box, and a sealing member is arranged between the support and the drying box. The filter assembly may be replaceable.

Preferably, the vacuum pump is a screw vacuum pump, and a spiral anticorrosive coating is plated on the outer surface of a screw of the screw vacuum pump.

Preferably, the drying component is dry cotton.

Drawings

Fig. 1 is a schematic structural diagram of the present embodiment.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

As shown in fig. 1, a helium leak detector of this embodiment includes a leak detector body 1, an inlet of the leak detector body 1 is connected with a dehumidifying component 2, the dehumidifying component 2 includes a vacuum pump 21 and a drying box 22, the drying box 22 is disposed at the front end of the vacuum pump 21, the drying box 22 is used for primarily drying moisture in air, a drying agent bag 23 for drying air and a filtering component 25 for filtering dust particles are disposed in the drying box 22 in this embodiment, a cover 29 is disposed on a side wall of a housing of the vacuum pump 21, a drying component 24 is disposed on an inner wall of the cover 29, and the drying component 24 in this embodiment is dry cotton for secondarily drying moisture in air.

The installation structure of the desiccant bag 23 in this embodiment is as follows, a grid support 26 is provided in the drying box 22, the grid support 26 is perpendicular to the air direction of the drying box 22, and the desiccant bag 23 is bound on the grid support 26.

In order to facilitate replacement of the desiccant bag 23, the mesh support 26 in this embodiment is inserted into the drying box 22, and during replacement, the mesh support 26 is pulled out of the drying box 22, and after the desiccant bag 23 on the mesh support 26 is replaced, the mesh support 26 is inserted into the drying box 22. In order to ensure the sealing performance after the grid support 26 is inserted into the drying box 22, the present embodiment is provided with a sealing member 27 between the grid support 26 and the drying box 22.

In addition, the inner wall of the drying box 22 in this embodiment is provided with a heating assembly 3, and the heating assembly 3 is used for drying moisture in the air. Heating element 3 in this embodiment is the annular setting, is provided with switch 31 on the outer wall of drying cabinet 22, and switch 31 sets up on the outer wall of drying cabinet 22, and switch 31 is connected with heating element 3, judges whether will open switch 31 according to the demand.

The filter assemblies 25 in this embodiment are located at the front end of the drying agent bag 23, the filter assemblies 25 are perpendicular to the air direction of the drying box 22, at least two groups of filter assemblies 25 are arranged, and the filter pore diameters of the two groups of filter assemblies 25 are gradually reduced.

The support of the filter assembly 25 in this embodiment is inserted into the drying box 22, which facilitates the replacement of the filter assembly 25 with the sealing member 27 interposed therebetween.

The vacuum pump 21 of this embodiment is a screw vacuum pump, and the outer surface of the screw 28 of the screw vacuum pump is coated with a spiral anticorrosive coating.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.

Claims

1. A helium leak detector comprising a leak detector body (1), characterized in that: the leak detector comprises a leak detector body (1), wherein an inlet of the leak detector body is connected with a dehumidifying component (2), the dehumidifying component (2) comprises a vacuum pump (21) and a drying box (22), the drying box (22) is arranged at the front end of the vacuum pump (21), a drying agent bag (23) and a filtering component (25) are arranged in the drying box (22), a cover (29) is arranged on the side wall of a shell of the vacuum pump (21), and a drying component (24) is arranged on the inner wall of the cover (29).

2. Helium leak detector as claimed in claim 1, wherein: a grid support (26) is arranged in the drying box (22), the grid support (26) is perpendicular to the air direction of the drying box (22), and the drying agent bag (23) is bound on the grid support (26).

3. Helium leak detector as claimed in claim 2, wherein: the grid support (26) is inserted into the drying box (22), and a sealing piece (27) is arranged between the grid support (26) and the drying box (22).

4. Helium leak detector as claimed in claim 1, wherein: the inner wall of drying cabinet (22) is provided with heating element (3), heating element (3) are the annular setting, be provided with switch (31) on the outer wall of drying cabinet (22), switch (31) set up on the outer wall of drying cabinet (22), switch (31) are connected with heating element (3).

5. Helium leak detector as claimed in claim 1, wherein: the filter component (25) is located at the front end of the drying agent bag (23), the filter component (25) is perpendicular to the air trend of the drying box (22), at least two groups of filter components (25) are arranged, and the filter pore diameters of the two groups of filter components (25) are gradually reduced.

6. Helium leak detector as claimed in claim 5, wherein: the support of the filtering component (25) is inserted in the drying box (22), and a sealing piece (27) is arranged between the support and the drying box.

7. Helium leak detector as claimed in claim 1, wherein: the vacuum pump (21) adopts a screw vacuum pump, and a spiral anticorrosive coating is plated on the outer surface of a screw (28) of the screw vacuum pump.

8. Helium leak detector as claimed in claim 1, wherein: the drying component (24) is dry cotton.