CN213239365U

CN213239365U - High helium side leakage detection device of security

Info

Publication number: CN213239365U
Application number: CN202022738080.4U
Authority: CN
Inventors: 蔡文市; 陈艺东; 杨清玲; 陈芳; 蓝燕惠
Original assignee: Zhangzhou Yuchang Huoyuan Gas Co ltd
Current assignee: Zhangzhou Yuchang Huoyuan Gas Co ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-05-18
Anticipated expiration: 2030-11-24

Abstract

The utility model discloses a high helium side leakage detection device of security relates to helium side leakage and detects technical field, the utility model discloses a detect the vacuum chamber, top one side that detects the vacuum chamber articulates there is the case lid, and the alarm is installed to top one side of case lid, and one side of case lid runs through there is the bolt, detects inside one side of vacuum chamber and is provided with the oxygen gas detection appearance. The utility model discloses a set up sealing door, the support frame, fixed block and spring block, the staff puts into detecting element to the vacuum cavity through sealing door, place detecting element on the support frame, carry out spacing fixed according to detecting element's position through fixed block and spring block, again through closing sealing door, to detect whole device and put into the job and detect the vacuum chamber in, the bolt is screwed up to the rethread closes the chamber door, when helium leaks to detecting device and vacuum cavity outside, detect oxygen content through the oxygen detector, if oxygen content crosses low-time, the oxygen detector is with signal transmission to alarm.

Description

High helium side leakage detection device of security

Technical Field

The utility model relates to a helium side leakage detects technical field, specifically is a high helium side leakage detection device of security.

Background

Helium, a noble gas known by the english name Helium, has the element symbol He and the atomic number 2. Is a colorless and odorless inert gas, has no chemical activity, and is difficult to react with other substances under normal conditions. Helium is an extremely light, colorless, odorless, and tasteless monatomic gas at ambient temperature. Is the most difficult of all gases to liquefy and is a substance that cannot solidify at standard atmospheric pressure. When the temperature is reduced to 2.174K after liquefaction, the material has the special properties of small surface tension, strong heat conductivity, extremely low viscosity and the like. Low temperatures close to absolute zero can be achieved with liquid helium. Stable chemical performance and deep yellow color when low-voltage discharge is carried out. Generally, no compounds are formed, and He2+, HeH plasma and molecules are formed when excited in a low-pressure discharge tube. Generally, it is difficult to react with other substances, and compounds can be formed with certain metals under specific conditions.

The existing helium side leakage detection device mostly adopts a water bubble method, a helium tank to be detected is placed in water, and water bubbles and air pressure difference formed by helium in water are checked to determine whether helium is side leaked, but the detection data of the method is not accurate, the size of helium side leakage amount, the leakage condition and the data cannot be known, because of inaccurate data, when a helium detection element is put into the market and used in a production factory, the helium leakage can cause suffocation danger by replacing oxygen in air, and the situation that pure helium is inhaled and loses consciousness immediately and dies almost immediately occurs, so that the health of workers is seriously damaged, and serious social safety accidents can be caused, besides, in the detection process, the workers need to place the detection element in the detection device, and possibly are inconvenient to place the detection element, thereby delaying the detection progress, resulting in the delay of detection work, causing follow-up problems and increasing the working strength of workers.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: thereby it is not accurate and detecting element is not convenient for place the problem of delaying the progress that detects in order to solve the helium side leakage detection, provides a high helium side leakage detection device of security.

In order to achieve the above object, the utility model provides a following technical scheme: a helium side leakage detection device with high safety comprises a detection vacuum box, wherein one side of the top of the detection vacuum box is hinged with a box cover, an alarm is arranged on one side of the top of the box cover, a bolt penetrates through one side of the box cover, an oxygen detector is arranged on one side of the interior of the detection vacuum box, a vacuum cavity is arranged below the interior of the detection vacuum box, a helium filling tank is fixed on one side of the vacuum cavity, the top of the helium filling tank is connected with a helium filling pipe, a support frame is fixed at the lower part inside the vacuum cavity, a detection protomer is fixed on the top of the support frame, a pressure detector is arranged on one side of the top of the detection protomer, a vacuum pump and a helium mass spectrometer leak detector are respectively arranged on two sides of the top of the vacuum cavity, fixed blocks are fixed on two sides of the interior of the vacuum cavity, and a spring block is fixed on one side of the fixed block, and a sealing door is arranged on the outer surface of the vacuum cavity.

Preferably, two helium filling tanks are arranged, the two helium filling tanks are symmetrically distributed along the central line of the longitudinal axis of the vacuum chamber, and the tops of the two helium filling tanks are communicated with the vacuum chamber through helium filling pipes.

Preferably, the two spring blocks are symmetrically arranged along the central line of the longitudinal axis of the vacuum cavity, and both the two spring blocks are attached to two sides of the detection original body.

Preferably, the cross-sectional area of the support frame is larger than that of the detection pathogen, and the top of the support frame is provided with a non-slip mat made of rubber.

Preferably, one end of the bolt penetrates through one side of the box cover to be in threaded connection with the detection vacuum box, and the box cover is in rotary connection with the detection vacuum box through a hinge.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up the vacuum pump, helium mass spectrometer leak detector oxygen detector, fill the helium pipe, fill helium jar and alarm, after detecting the original body and placing, take a percentage through the vacuum of vacuum pump and extract the vacuum in the vacuum cavity inside, rethread pressure detector detects the pressure variation that detects the original body, if pressure detector detects the change of the pressure value that detects the original body and take place by a wide margin, it shows that the problem that detects the original body and has a large amount of leakages, it leaks helium to detect the original body from leaking the hole to the vacuum cavity inside to detect the original body, show that this detecting element detects nonconforming, and when pressure detector detects the change of the pressure value that detects the original body and takes place by a small margin, it shows that detects the problem that the original body has little leakage, then fill helium through filling helium jar through filling helium pipe toward detecting the original body, and helium mass spectrometer leak detector can detect the leakage amount when detecting the original, therefore, whether helium leaks or not can be detected in a fully-sealed and accurate data manner;

2. the utility model is provided with the sealing door, the supporting frame, the fixed block and the spring block, the staff puts the detecting element into the vacuum cavity through the sealing door, the detecting element is placed on the supporting frame, the detection device is limited and fixed according to the position of the detection element through the fixed block and the spring block, the detection whole body is placed into a detection vacuum box through closing the sealing door, the box door is closed through screwing the bolt, when helium leaks to the detection device and the outside of the vacuum cavity, the oxygen content is detected by the oxygen detector, if the oxygen content is too low, the oxygen detector transmits a signal to the alarm, thereby reminding the staff of paying attention, further ensuring the physical health of the staff, simultaneously facilitating the use of the staff, therefore, the detection progress is accelerated, the delay of detection work is avoided, and the working intensity of workers is reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the cross-sectional structure of the vacuum chamber of the present invention;

FIG. 3 is an enlarged schematic view of the structure at the position A of the present invention;

fig. 4 is an enlarged schematic view of the position B of the present invention.

In the figure: 1. detecting a vacuum box; 2. a box cover; 3. an alarm; 4. a bolt; 5. an oxygen detector; 6. A helium filling pipe; 7. a helium charging tank; 8. a vacuum chamber; 9. a sealing door; 10. a support frame; 11. detecting a pathogen; 12. a pressure detector; 13. a fixed block; 14. a spring block; 15. a vacuum pump; 16. helium mass spectrometer leak detector.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "disposed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The following describes an embodiment of the present invention according to its overall structure.

Referring to fig. 1-4, a high-safety helium side leakage detection device comprises a detection vacuum box 1, a box cover 2, an alarm 3, a bolt 4, an oxygen detector 5, a helium filling pipe 6, a helium filling tank 7, a sealed vacuum cavity 8, a sealing door 9, a support frame 10, a detection protomer 11, a pressure detector 12, a fixing block 13, a spring block 14, a vacuum pump 15 and a helium mass spectrometer leak detector 16, wherein the box cover 2 is hinged to one side of the top of the detection vacuum box 1, the alarm 3 is installed on one side of the top of the box cover 2, the bolt 4 penetrates through one side of the box cover 2 to facilitate fastening of the detection vacuum box 1, the oxygen detector 5 is arranged on one side of the interior of the detection vacuum box 1, the vacuum cavity 8 is arranged below the interior of the detection vacuum box 1, the helium filling tank 7 is fixed to one side of the vacuum cavity 8, the helium filling tank 7 is connected with the helium filling pipe 6, the top of support frame 10 is fixed with and detects original 11, and the top one side that detects original 11 is installed pressure measurement appearance 12, and vacuum pump 15 and helium mass spectrometer leak detector 16 are installed respectively to the top both sides of vacuum chamber 8, and the inside both sides of vacuum chamber 8 all are fixed with fixed block 13, and one side of fixed block 13 is fixed with spring block 14, and the surface of vacuum chamber 8 is provided with sealing door 9.

Please refer to fig. 2-3, two helium filling tanks 7 are provided, the two helium filling tanks 7 are symmetrically distributed along the central line of the longitudinal axis of the vacuum chamber 8, the top parts of the two helium filling tanks 7 are communicated with the vacuum chamber 8 through the helium filling pipe 6, so as to conveniently supply helium to the detected original body 11, the two spring blocks 14 are symmetrically arranged along the central line of the longitudinal axis of the vacuum chamber 8, and both the two spring blocks 14 are attached to both sides of the detected original body 11, so as to conveniently perform certain limit according to the size of the detected original body 11.

Please refer to fig. 2-4, the cross-sectional area of the supporting frame 10 is larger than the cross-sectional area of the detection original body 11, the top of the supporting frame 10 is provided with a non-slip mat made of rubber material, which is convenient for the stable placement of the detection original body 11 and does not generate abrasion to the outer surface of the detection original body 11 to cause leakage, one end of the bolt 4 penetrates through one side of the box cover 2 to be in threaded connection with the detection vacuum box 1, the box cover 2 is rotatably connected with the detection vacuum box 1 through a hinge, which is convenient for the detection of the device, and the helium gas is prevented from leaking to the.

The working principle is as follows: firstly, a worker puts a detection element 11 into a vacuum cavity 8 through a sealing door 9, puts the detection element 11 on a support frame 10, carries out limit fixing according to the position of the detection element 11 through a fixing block 13 and a spring block 14, closes the sealing door 9, puts the detection whole device into a vacuum detection box 1, closes a box cover 3 through a tightening bolt 4, detects the oxygen content through an oxygen detector 5 when helium leaks to the outside of the detection device and the vacuum cavity 8, transmits a signal to an alarm 3 if the oxygen content is too low, thereby reminding the worker to pay attention to the detection, further ensuring the health of the worker, facilitating the use of the worker, after the detection element 11 is put, extracts the vacuum in the vacuum cavity 8 through a vacuum tap of a vacuum pump 15, and detects the pressure change in the detection element 11 through a pressure detector 12, if the pressure detector 12 detects that the detected original body 11 has a large-amplitude pressure value change, the problem that the detected original body 11 has a large amount of leakage is indicated, the detected original body 11 leaks helium into the vacuum cavity 8 from a leakage hole, the detection element is indicated to be unqualified, and when the pressure detector 12 detects that the detected original body 11 has a small-amplitude pressure value change, the problem that the detected original body 11 has a small leakage is indicated, then the helium filling tank 7 fills helium into the detected original body 11 through the helium filling pipe 6, and the helium mass spectrometer leak detector 16 can detect the leakage amount when the detected original body 11 leaks, so that whether the detected original body 11 has a large leakage or a small leakage is determined, and whether the helium leaks can be detected in a full-sealing mode and the data are accurate.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a high helium side leakage detection device of security, is including detecting vacuum chamber (1), its characterized in that: the detector is characterized in that a box cover (2) is hinged to one side of the top of the detection vacuum box (1), an alarm (3) is installed on one side of the top of the box cover (2), a bolt (4) penetrates through one side of the box cover (2), an oxygen detector (5) is arranged on one side of the inside of the detection vacuum box (1), a vacuum cavity (8) is arranged below the inside of the detection vacuum box (1), a helium filling tank (7) is fixed on one side of the vacuum cavity (8), a helium filling pipe (6) is connected to the top of the helium filling tank (7), a support frame (10) is fixed below the inside of the vacuum cavity (8), a detection original body (11) is fixed on the top of the support frame (10), a pressure detector (12) is installed on one side of the top of the detection original body (11), and a vacuum pump (15) and a helium mass spectrometer (16) are installed on two, fixed blocks (13) are fixed on two sides of the interior of the vacuum cavity (8), a spring block (14) is fixed on one side of each fixed block (13), and a sealing door (9) is arranged on the outer surface of the vacuum cavity (8).

2. The high-safety helium side leakage detection device as claimed in claim 1, wherein: the two helium filling tanks (7) are symmetrically distributed along the central line of the longitudinal axis of the vacuum chamber (8), and the tops of the two helium filling tanks (7) are communicated with the vacuum chamber (8) through helium filling pipes (6).

3. The high-safety helium side leakage detection device as claimed in claim 1, wherein: the two spring blocks (14) are symmetrically arranged along the central line of the longitudinal axis of the vacuum cavity (8), and the two spring blocks (14) are attached to two sides of the detection original body (11).

4. The high-safety helium side leakage detection device as claimed in claim 1, wherein: the cross-sectional area of support frame (10) is greater than the cross-sectional area that detects original (11), the top of support frame (10) is provided with the slipmat that the rubber material was made and is formed.

5. The high-safety helium side leakage detection device as claimed in claim 1, wherein: one end of the bolt (4) penetrates through one side of the box cover (2) to be in threaded connection with the detection vacuum box (1), and the box cover (2) is rotatably connected with the detection vacuum box (1) through a hinge.