Helium recovery device with gas leakage detection structure

Abstract

The utility model provides a helium recovery device with a gas leakage detection structure, which comprises a pair of pipelines used for conveying helium and connected with each other through a flange; fixing discs are arranged on the side walls of the pair of pipelines, sealing rings are embedded into the sides, close to each other, of the pair of fixing discs, first annular sealing grooves are formed in the sides, close to each other, of the pair of sealing rings, and a first connecting pipe is arranged in one first annular sealing groove; a second annular sealing groove is formed in the end, away from the first annular sealing groove, of the first connecting pipe, a second connecting pipe is arranged in the other first annular sealing groove, an annular sealing plate inserted into the second annular sealing groove is arranged at the end of the second connecting pipe, and a buzzer is arranged on the side wall of the first connecting pipe. According to the helium recovery device, the structure is reasonable, gas leakage detection is timely found, and the helium recovery rate is improved.

Description

Technical Field

[0001] The utility model relates to a helium recovery device, in particular to a helium recovery device with a gas leakage detection structure. Background Art

[0002] Helium is a rare gas with the chemical formula He. It is colorless, odorless, and chemically inactive. Under normal circumstances, it is difficult to react with other substances. Helium is the second most abundant element in the universe after hydrogen, accounting for approximately 24% of the mass of galaxies and stars. A helium recovery device is needed to recycle helium.

[0003] In the prior art, when existing helium recovery devices are used to transport helium, the pipelines transporting helium are generally connected by flanges, and leakage is prone to occur at the joints. Helium is a colorless, odorless, and tasteless monatomic gas, and leakage cannot be detected in time, resulting in a decrease in helium recovery rate. There is an urgent need for a helium recovery device with a leakage detection structure to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a helium recovery device with a leak detection structure to solve the problems raised in the above background technology. The utility model has a reasonable structure, timely leak detection and improved helium recovery rate.

[0005] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions: a helium recovery device with a gas leakage detection structure, comprising:

[0006] A pair of pipelines for transporting helium, the pair of pipelines being connected by flanges;

[0007] A pair of pipeline side walls are each provided with a fixed disk, and a sealing ring is embedded in the side of the pair of fixed disks close to each other, and a first annular sealing groove is provided on the side of the pair of sealing rings close to each other, wherein a first connecting pipe is provided inside one of the first annular sealing grooves, and a second annular sealing groove is provided at one end of the first connecting pipe away from the first annular sealing groove, and a second connecting pipe is provided inside the other first annular sealing groove, and an annular sealing plate is provided at the end of the second connecting pipe for inserting into the second annular sealing groove, and a sealing sleeve matching the second annular sealing groove is provided on the side wall of the annular sealing plate, and a buzzer is provided on the side wall of the first connecting pipe, and a helium sensor for detecting helium leakage at the flange so that the buzzer issues an alarm is provided on the side wall of the first connecting pipe.

[0008] Furthermore, the first connecting pipe includes a first sealing ring disposed inside one of the first annular sealing grooves, a first extension ring extends from a side wall of the first sealing ring, and a second annular sealing groove is provided at an end portion of the first extension ring;

[0009] The second connecting pipe includes a second sealing ring arranged inside another first annular sealing groove, a second extending ring is extended from the side wall of the second sealing ring, and an annular sealing plate is arranged at the end of the second extending ring.

[0010] Furthermore, a PLC controller is provided on the side wall of the first connecting tube, an A / D converter is provided at the input end of the PLC controller, a D / A converter is provided at the output end of the PLC controller, the helium sensor is electrically connected to the A / D converter, and the buzzer is electrically connected to the D / A converter.

[0011] Furthermore, an exhaust pipe is provided on the side wall of the second connecting pipe, and an exhaust valve is provided on the side wall of the exhaust pipe.

[0012] Furthermore, the outer diameter of the first extension ring is the same as that of the second extension ring, the side wall of the second extension ring is provided with an arc-shaped stop block, and the side wall of the arc-shaped stop block is provided with a stop bolt in contact with the side wall of the first extension ring.

[0013] Furthermore, a stop groove is provided on the side wall of the first extension ring, a threaded column of the stop bolt is inserted into the stop groove, and a force-applying column is provided on the side wall of the head of the stop bolt.

[0014] Furthermore, the transverse length of the first extension ring is greater than that of the second extension ring, and when the first sealing ring and the second sealing ring are both placed in the first annular sealing groove, a gap is provided between the end of the annular sealing plate and the second annular sealing groove.

[0015] According to the utility model, a helium recovery device with a gas leak detection structure forms a sealed chamber between a fixed plate, a pipeline, a first connecting pipe, a second connecting pipe, and an annular sealing plate to surround the flange. When a gas leak occurs at the flange, helium will remain inside the sealed chamber. The helium sensor detects the helium inside the sealed chamber and a buzzer sounds an alarm, thereby facilitating timely detection of gas leaks, preventing helium leakage, and thereby improving the helium recovery rate.

[0016] The annular sealing plate drives the sealing sleeve to move inside the second annular sealing groove, thereby sealing the connection and facilitating the disassembly of the first connecting pipe and the second connecting pipe from the first annular sealing groove, thereby facilitating disassembly and assembly operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0018] Figure 1 This is a perspective view of a helium recovery device with a gas leakage detection structure according to an embodiment of the present invention;

[0019] Figure 2 It is a front cross-sectional view of a helium recovery device with a gas leakage detection structure according to one embodiment of the present invention;

[0020] Figure 3 According to an embodiment of the present invention Figure 2 A magnified view of middle A;

[0021] Figure 4 This is a fragmentary three-dimensional diagram of the connection between the sealing ring and the first connecting pipe in a helium recovery device with a gas leakage detection structure according to one embodiment of the present invention;

[0022] Figure 5 Schematic diagram of a control system according to an embodiment of the present invention;

[0023] In the figure: 1. pipeline; 101. flange; 2. fixing plate; 3. sealing ring; 31. first annular sealing groove; 4. first connecting pipe; 41. first sealing ring; 42. first extension ring; 5. helium sensor; 6. buzzer; 7. PLC controller; 8. sealing sleeve; 9. second connecting pipe; 91. second sealing ring; 92. second extension ring; 10. exhaust pipe; 11. exhaust valve; 12. arc stop block; 13. stop bolt; 14. force column; 15. stop groove; 16. annular sealing plate; 17. second annular sealing groove. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] like Figure 1 As shown, the utility model provides a technical solution: a helium recovery device with a gas leakage detection structure, comprising:

[0026] A pair of pipelines 1 for transporting helium, the pair of pipelines 1 being connected via a flange 101;

[0027] A pair of pipeline side walls are each provided with a fixed disk 2, and a sealing ring 3 is embedded on the side of the pair of fixed disks 2 close to each other. A first annular sealing groove 31 is provided on the side of the pair of sealing rings 3 close to each other, and a first connecting pipe 4 is provided inside one of the first annular sealing grooves 31. A second annular sealing groove 17 is provided at one end of the first connecting pipe 4 away from the first annular sealing groove 31, and a second connecting pipe 9 is provided inside the other first annular sealing groove 31. An annular sealing plate 16 is provided at the end of the second connecting pipe 9 and inserted into the second annular sealing groove 17. A sealing sleeve 8 matching the second annular sealing groove 17 is provided on the side wall of the annular sealing plate 16. A buzzer 6 is provided on the side wall of the first connecting pipe 4. A helium sensor 5 for detecting helium leakage at the flange 101 so that the buzzer 6 issues an alarm is provided. This design improves the connection between the first connecting pipe 4 and the second connecting pipe 9 and the fixed disk 2 respectively by inserting the first connecting pipe 4 and the second connecting pipe 9 into the corresponding first annular sealing grooves 31 respectively. The sealing performance of the connection is improved by inserting the annular sealing plate 16 on the second connecting pipe 9 into the second annular sealing groove 17 and making the sealing sleeve 8 on the side wall of the annular sealing plate 16 tightly fit with the second annular sealing groove 17, thereby improving the sealing performance of the connection between the first connecting pipe 4 and the second connecting pipe 9, so that a sealed chamber is formed between the fixed plate 2, the pipeline 1, the first connecting pipe 4, the second connecting pipe 9, and the annular sealing plate 16 to surround the flange 101. When a leak occurs at the flange 101, helium will remain inside the sealed chamber. The helium sensor 5 detects the helium inside the sealed chamber and the buzzer 6 issues a warning, thereby facilitating the timely detection and discovery of the leak, avoiding helium leakage, and thus improving the helium recovery rate. The annular sealing plate 16 drives the sealing sleeve 8 to move inside the second annular sealing groove 17, thereby sealing the connection and facilitating the removal of the first connecting pipe 4 and the second connecting pipe 9 from the first annular sealing groove 31, thereby facilitating the disassembly and assembly operation.

[0028] Reference Figure 1 and Figure 2 The first connecting tube 4 includes a first sealing ring 41 arranged in one of the first annular sealing grooves 31, a first extension ring 42 extending from the side wall of the first sealing ring 41, a second annular sealing groove 17 is opened at the end of the first extension ring 42, and the first sealing ring 41 matches the first annular sealing groove 31; the second connecting tube 9 includes a second sealing ring 91 arranged in the other first annular sealing groove 31, a second extension ring 92 extending from the side wall of the second sealing ring 91, an annular sealing plate 16 arranged at the end of the second extension ring 92, and the second sealing ring 91 matches the first annular sealing groove 31, thereby improving the rationality of the design.

[0029] Reference Figure 2 and Figure 5A PLC controller 7 is provided on the side wall of the first connecting tube 4. An A / D converter is provided at the input end of the PLC controller 7, and a D / A converter is provided at the output end of the PLC controller 7. The helium sensor 5 is electrically connected to the A / D converter, and the buzzer 6 is electrically connected to the D / A converter. When the helium sensor 5 detects a helium leak, this design sends a signal to the PLC controller 7 to cause the buzzer 6 to issue an alarm.

[0030] Reference Figure 2 An exhaust pipe 10 is provided on the side wall of the second connecting pipe 9, and an exhaust valve 11 is provided on the side wall of the exhaust pipe 10. This design facilitates the release and collection of leaked helium by using the exhaust pipe 10 and the exhaust valve 11.

[0031] Reference Figure 1 、 Figure 2 and Figure 4 The outer diameter of the first extension ring 42 is the same as the outer diameter of the second extension ring 92. The side wall of the second extension ring 92 is provided with an arc-shaped stop block 12, and the side wall of the arc-shaped stop block 12 is provided with a stop bolt 13 in contact with the side wall of the first extension ring 42. This design uses the stop bolt 13 to be threadedly connected to the arc-shaped stop block 12 and in contact with the first extension ring 42. Since the arc-shaped stop block 12 is provided on the second extension ring 92, the arc-shaped stop block 12 and the first extension block are stopped, and then the first extension ring 42 and the second extension ring 92 are stopped, and then the first connecting tube 4 and the second connecting tube 9 are stopped, thereby improving the stability of the connection.

[0032] Reference Figure 1 A stopping groove 15 is provided on the side wall of the first extension ring 42, and the threaded column of the stopping bolt 13 is inserted into the stopping groove 15. A force column 14 is provided on the side wall of the head of the stopping bolt 13. This design facilitates the application of force to the stopping bolt 13 by using the force column 14, so that the end of the threaded column of the stopping bolt 13 contacts the stopping groove 15 to stop the first extension ring 42 and the second extension ring 92.

[0033] Reference Figure 2 and Figure 3 The lateral length of the first extension ring 42 is greater than that of the second extension ring 92. When the first sealing ring 41 and the second sealing ring 91 are both placed in the first annular sealing groove 31, a gap is provided between the end of the annular sealing plate 16 and the second annular sealing groove 17. This design facilitates the movement and sealing of the sealing sleeve 8 on the annular sealing plate 16 in the second annular sealing groove 17, thereby facilitating the lateral movement between the first extension ring 42 and the second extension ring 92, and facilitating the connection and installation of the first connecting tube 4 and the second connecting tube 9 to the first annular sealing groove 31. Similarly, it facilitates disassembly.

[0034] Reference Figure 1-Figure 5As an embodiment of the present invention, when it is necessary to detect the air leakage at the flange 101, the staff first inserts the first sealing ring 41 on the first connecting pipe 4 into the first annular sealing groove 31 of the sealing ring 3, and then applies force to the second connecting pipe 9 to cause the sealing sleeve 8 on the annular sealing plate 16 to move laterally inside the second annular sealing groove 17. The lateral movement of the annular sealing plate 16 drives the second extension ring 92 on the second connecting pipe 9 to move laterally. The lateral movement of the second extension ring 92 drives the second sealing ring 91 to move laterally and insert into the first annular sealing groove 31 of the other sealing ring 3, thereby completing the sealed connection and installation between the first connecting pipe 4 and the second connecting pipe 9 and the fixed plate 2. Finally, the stop bolt 13 on the arc-shaped stop block 12 contacts the first extension ring 42 to stop the first connecting pipe 4 and the second connecting pipe 9, thereby improving the stability of the connection and completing the installation operation. Similarly, the annular sealing plate 16 drives the sealing sleeve 8 thereon to move laterally in the opposite direction inside the second annular sealing groove 17, thereby facilitating the disassembly between the first connecting pipe 4 and the second connecting pipe 9.

[0035] When there is a gas leak at the flange 101, a sealed chamber is formed between the fixed plate 2, the pipeline 1, the first connecting pipe 4, the second connecting pipe 9, and the annular sealing plate 16 to surround the flange 101. When there is a gas leak at the flange 101, helium will remain inside the sealed chamber. The helium sensor 5 detects the helium inside the sealed chamber and sends the detected signal to the PLC controller 7 to make the buzzer 6 sound an alarm, thereby facilitating the timely detection of gas leaks, avoiding helium leakage, and further improving the helium recovery rate, thereby improving the practicality of the present invention.

[0036] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims be included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0037] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A helium recovery device with a gas leakage detection structure, comprising: A pair of pipelines (1) for transporting helium, wherein the pair of pipelines (1) are connected via a flange (101); It is characterized in that A pair of pipeline (1) side walls are both provided with fixed disks (2), and a sealing ring (3) is embedded in the side of the pair of fixed disks (2) close to each other. A first annular sealing groove (31) is provided on the side of the pair of sealing rings (3) close to each other. A first connecting tube (4) is provided inside one of the first annular sealing grooves (31), and a second annular sealing groove (17) is provided at one end of the first connecting tube (4) away from the first annular sealing groove (31). A second connecting tube (9) is provided inside the other first annular sealing groove (31), and an annular sealing plate (16) is provided at the end of the second connecting tube (9) for inserting into the second annular sealing groove (17). A sealing sleeve (8) matching the second annular sealing groove (17) is sleeved on the side wall of the annular sealing plate (16). A buzzer (6) is provided on the side wall of the first connecting tube (4), and a helium sensor (5) for detecting helium leakage at the flange (101) so that the buzzer (6) issues an alarm is provided on the side wall of the first connecting tube (4).

2. A helium recovery device with a gas leakage detection structure according to claim 1, characterized in that: The first connecting pipe (4) includes a first sealing ring (41) arranged inside one of the first annular sealing grooves (31), a first extension ring (42) extending from a side wall of the first sealing ring (41), and the second annular sealing groove (17) is opened at an end of the first extension ring (42); The second connecting pipe (9) comprises a second sealing ring (91) arranged inside another first annular sealing groove (31), a second extension ring (92) extending from the side wall of the second sealing ring (91), and the annular sealing plate (16) is arranged at the end of the second extension ring (92).

3. The helium recovery device with a gas leakage detection structure according to claim 1, characterized in that: A PLC controller (7) is provided on the side wall of the first connecting tube (4); an A / D converter is provided at the input end of the PLC controller (7); a D / A converter is provided at the output end of the PLC controller (7); the helium sensor (5) is electrically connected to the A / D converter; and the buzzer (6) is electrically connected to the D / A converter.

4. The helium recovery device with a gas leakage detection structure according to claim 1, characterized in that: An exhaust pipe (10) is provided on the side wall of the second connecting pipe (9), and an exhaust valve (11) is provided on the side wall of the exhaust pipe (10).

5. The helium recovery device with a gas leakage detection structure according to claim 2, characterized in that: The outer diameter of the first extension ring (42) is the same as the outer diameter of the second extension ring (92); the side wall of the second extension ring (92) is provided with an arc-shaped stop block (12); and the side wall of the arc-shaped stop block (12) is provided with a stop bolt (13) in contact with the side wall of the first extension ring (42).

6. The helium recovery device with a gas leakage detection structure according to claim 5, characterized in that: A retaining groove (15) is provided on the side wall of the first extension ring (42), a threaded column of the retaining bolt (13) is inserted into the retaining groove (15), and a force application column (14) is provided on the side wall of the head of the retaining bolt (13).

7. The helium recovery device with a gas leakage detection structure according to claim 2, characterized in that: The transverse length of the first extension ring (42) is greater than the transverse length of the second extension ring (92), and when the first sealing ring (41) and the second sealing ring (91) are both placed inside the first annular sealing groove (31), a gap is provided between the end of the annular sealing plate (16) and the second annular sealing groove (17).

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