Helium delivery double-layer protection device

Abstract

The utility model relates to the technical field of helium detection, and particularly discloses a helium conveying double-layer protection device which comprises a first flange plate. The first flange plate is detachably and fixedly connected with a ventilation plate; an output valve and a recovery valve are fixedly connected to an opening in the ventilation plate in a communicating manner; the first flange plate is fixedly connected with a recovery pipe in a communicating manner; the lower end of the recovery pipe is sleeved with a hoop; a hollow pipe is inserted into the hoop; helium is output through a conveying straight pipe, a third connecting piece, a fourth connecting piece, a sixth connecting piece, a conveying bent pipe and an output valve for detection; an external suction conveying pipeline is formed through a protection pipe, a recycling pipe, a hoop, a hollow pipe, a first fastener, a ventilation plate and a recycling valve and used for recycling helium leaked from the connecting positions of a conveying straight pipe, a third connecting piece, a fourth connecting piece, a sixth connecting piece and a conveying bent pipe, and the helium is recycled and collected through the recycling valve; a detection result cannot be polluted by penetrating through a protective tube.

Description

TECHNICAL FIELD

[0001] The utility model relates to helium detection technical field, specifically a helium delivery double -deck protection device. BACKGROUND

[0002] Helium detection is a process used to determine the concentration of helium in an environment, usually performed in industrial, laboratory, and certain specific application scenarios. Helium is a colorless, odorless, non-toxic and chemically very stable inert gas. It is not easy to react with other substances, so it is used as a protective gas or coolant in many applications.

[0003] The prior art has the following deficiencies: The original industry conventionally uses a stainless steel braided tube to connect by welding, but the stainless steel braided tube needs to be frequently replaced for detection, which causes the welded part to be repeatedly welded, leading to metal fatigue and disconnection, resulting in poor sealing. The plastic tube is used to transport helium, which is convenient and stable for connection, but due to the physical properties of helium, it will slowly pass through the plastic tube and mix into the vacuum chamber, affecting the accuracy of helium detection. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the technical problem of the prior art that the original industry conventionally uses a stainless steel braided tube to connect by welding, but the stainless steel braided tube needs to be frequently replaced for detection, which causes the welded part to be repeatedly welded, leading to metal fatigue and disconnection, resulting in poor sealing. The plastic tube is used to transport helium, which is convenient and stable for connection, but due to the physical properties of helium, it will slowly pass through the plastic tube and mix into the vacuum chamber, affecting the accuracy of helium detection, and provides a helium delivery double -deck protection device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions to achieve it.

[0006] The helium delivery double -deck protection device comprises a first flange plate, a gas passage plate detachably fixed on the first flange plate, an output valve and a recovery valve fixedly connected through the hole on the gas passage plate, a recovery pipe fixedly connected to the first flange plate, a clamp sleeved on the lower end of the recovery pipe, a hollow pipe inserted into the clamp, a first fastener fixedly connected to the lower end of the hollow pipe, a protective pipe fixedly connected to the first fastener, a delivery straight pipe fixedly connected to the lower end of the first fastener, a third connecting piece fixedly connected to the upper end of the first fastener, a fourth connecting piece fixedly connected to the upper end of the third connecting piece, a sixth connecting piece fixedly connected to the upper end of the fourth connecting piece, a delivery elbow fixedly connected to the sixth connecting piece, and the upper end of the delivery elbow is communicated with the output valve.

[0007] Further, the lower end of the protection pipe is communicated and fixed with a first connecting piece; the lower end of the first connecting piece is communicated and fixed with a fifth connecting piece.

[0008] Further, the lower end of the fifth connecting piece is communicated and fixed with a second connecting piece.

[0009] The helium gas conveying double-layer protection device has the following beneficial effects:

[0010] 1. The utility model discloses a kind of helium gas conveying double-layer protection devices, with the following beneficial effects:

[0011] 2. The utility model discloses a kind of helium gas conveying double-layer protection devices, with the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0012] The specific embodiments of the utility model will be described in detail below with reference to the drawings;

[0013] Figure 1 It is the first axis measurement structure schematic diagram of the utility model;

[0014] Figure 2 It is the second axis measurement structure schematic diagram of the utility model;

[0015] Figure 3 It is the third axis measurement structure schematic diagram of the utility model;

[0016] Figure 4 It is the front view structure schematic diagram of the utility model.

[0017] Marked number in drawing: 1, first flange plate;2, recovery pipe;3, clamp;4, hollow tube;5, first fastener;6, conveying straight pipe;7, first connecting piece;8, second connecting piece;9, seventh connecting piece;10, third connecting piece;11, fourth connecting piece;12, fifth connecting piece;13, sixth connecting piece;14, conveying elbow;15, air passage plate;16, output valve;17, recovery valve;18, protection pipe. DETAILED DESCRIPTION

[0018] It should be understood that the specific embodiments described herein are merely intended to explain the present utility model, and are not intended to limit the present utility model.

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0020] It should be noted that all the directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the utility model are only used to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings). If the specific posture changes, the directionality indications will also change accordingly. The connection can be direct connection or indirect connection.

[0021] Please refer to Figures 1-4 As shown in the figure, a helium delivery double-layer protection device, including the first flange plate 1 for sealing and fixed, the first flange plate 1 is detachably connected with the air plate 15 by using fasteners, the output valve 16 and the recovery valve 17 are connected and fixed through the hole in the air plate 15, so that the helium can be delivered outside for detection function through the output valve 16, and then the recovery vacuum pump pipeline is connected outside for recovery of helium through the recovery valve 17, so that the helium will not pass through the protection pipe 18 to affect the detection; the recovery pipe 2 is connected and fixed on the first flange plate 1; the lower end of the recovery pipe 2 is sleeved with the clamp 3; the hollow pipe 4 is inserted into the clamp 3; the lower end of the hollow pipe 4 is connected and fixed with the first fastener 5; the first fastener 5 is connected and fixed with the protection pipe 18; the lower end of the first fastener 5 is connected and fixed with the delivery straight pipe 6, and the delivery straight pipe 6 can be connected with the helium source; the upper end of the first fastener 5 is connected and fixed with the third connecting piece 10; the upper end of the third connecting piece 10 is connected and fixed with the fourth connecting piece 11; the upper end of the fourth connecting piece 11 is connected and fixed with the sixth connecting piece 13; the sixth connecting piece 13 is connected and fixed with the delivery elbow pipe 14; the upper end of the delivery elbow pipe 14 is connected with the output valve 16, and the helium is outputted for detection through the delivery straight pipe 6, the third connecting piece 10, the fourth connecting piece 11, the sixth connecting piece 13, the delivery elbow pipe 14 and the output valve 16; the protection pipe 18, the recovery pipe 2, the clamp 3, the hollow pipe 4, the first fastener 5, the air plate 15 and the recovery valve 17 form an external suction delivery pipeline for recovering the leaked helium at the connection of the delivery straight pipe 6, the third connecting piece 10, the fourth connecting piece 11, the sixth connecting piece 13 and the delivery elbow pipe 14, so that the helium is recovered and collected through the recovery valve 17, and will not pass through the protection pipe 18 to cause pollution of the detection result.

[0022] The first connecting piece 7 is connected with the lower end of the protection pipe 18, and the fifth connecting piece 12 is connected with the lower end of the first connecting piece 7.

[0023] The second connecting piece 8 is connected with the lower end of the fifth connecting piece 12, and the fifth connecting piece 12 and the second connecting piece 8 are connected in a male-female mode, so that the second connecting piece 8 and the fifth connecting piece 12 can be quickly connected and disassembled.

[0024] The seventh connecting piece 9 is connected with the lower end of the second connecting piece 8, and the second connecting piece 8 and the seventh connecting piece 9 are connected in a male-female mode, so that the second connecting piece 8 and the seventh connecting piece 9 can be quickly connected and disassembled.

[0025] The conveying straight pipe 6 is located in the protection pipe 18, so that the conveying straight pipe 6 can be protected by the protection pipe 18.

[0026] The conveying elbow pipe 14 is located in the recovery pipe 2, so that the conveying elbow pipe 14 can be protected by the recovery pipe 2 and form a cavity for accommodating helium.

[0027] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0028] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A helium delivery double containment device, characterized by; The utility model provides a kind of air exhaust device, including first flange plate (1);The first flange plate (1) is detachably fixed with air exhaust plate (15);The air exhaust plate (15) is fixed with output valve (16) and recovery valve (17) with hole communication;The first flange plate (1) is fixed with recovery pipe (2) with communication;The lower end of the recovery pipe (2) is sleeved with clamp (3);The hollow tube (4) is inserted into the clamp (3);The lower end of the hollow tube (4) is fixed with first fastener (5) with communication;The first fastener (5) is fixed with protection pipe (18) with communication;The lower end of the first fastener (5) is fixed with conveying straight pipe (6) with communication;The upper end of the first fastener (5) is fixed with third connecting piece (10) with communication;The upper end of the third connecting piece (10) is fixed with fourth connecting piece (11) with communication;The upper end of the fourth connecting piece (11) is fixed with sixth connecting piece (13) with communication;The upper end of the conveying elbow pipe (14) is fixed with output valve (16) with communication with the conveying elbow pipe (14) with communication.

2. The helium delivery double-layer guard of claim 1, wherein: The lower end of the protection pipe (18) is fixed with first connecting piece (7) with communication;The lower end of the first connecting piece (7) is fixed with fifth connecting piece (12) with communication.

3. The helium delivery double barrier according to claim 2, wherein: The lower end of the fifth connecting piece (12) is fixed with second connecting piece (8) with communication.

4. The helium delivery double barrier according to claim 3, wherein: The lower end of the second connecting piece (8) is fixed with seventh connecting piece (9) with communication.

5. The helium delivery double barrier guard of claim 1, wherein: The conveying straight pipe (6) is located in protection pipe (18).

6. The helium delivery double barrier guard of claim 1, wherein: The conveying elbow pipe (14) is located in recovery pipe (2).

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