A device for reducing helium waste
Patent Information
- Application Number
- CN202521888639.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-03
- Publication Date
- 2026-09-04
- Estimated Expiration
- 2035-09-03
AI Technical Summary
[0005]为此，本实用新型提供一种减少氦气浪费的装置，以解决现有技术中由于回收系统长期处于负压状态导致的必须频繁排放并补充新鲜氦气，从而造成氦气资源巨大浪费和生产成本增高的问题
本实用新型通过将氦气回收系统的内部压力维持在微正压（1.05~1.25个大气压）状态，从根本上减少了外界空气的渗入，有效避免了回收氦气被稀释，从而显著降低了氦气消耗，节约了生产成本。与此同时，该装置通过人工调整或者控制系统电信号控制压力维持在一定的区间保证了回收氦气浓度的稳定；其集成的紧凑结构（通过支架将腔体、回收罐、回收泵及压缩存储机构合理布局）便于管理与维护；通过不同的输入量精确控制整个系统，运行更为可靠；并且在延长设备寿命和减少对氦气资源的消耗方面，也体现出显著的环保与长期经济效益。
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Figure CN224718548U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of helium leak testing technology, specifically to a device for reducing helium waste. Background Technology
[0002] In the industrial sector, the stringent requirements for the airtightness of equipment and components make helium leak testing a critical step. This test involves filling the test piece with helium and determining its tightness by detecting leaks. To achieve helium recycling and reduce costs, helium recovery devices are commonly used. These devices transport the helium from the tested product to a recovery tank for temporary storage via recovery pipelines.
[0003] However, existing recovery devices cannot be completely sealed, allowing outside air to seep in when the internal pressure drops below atmospheric pressure, resulting in the dilution of high-concentration helium. To maintain the standard concentration required for detection, a large amount of the diluted gas mixture must be vented and replenished with high-purity helium, causing significant helium waste and resulting in high equipment operating costs.
[0004] Therefore, how to provide a device to reduce helium waste and overcome the defects of existing structures is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0005] Therefore, this utility model provides a device to reduce helium waste, in order to solve the problem in the prior art that the recovery system is in a negative pressure state for a long time, which requires frequent discharge and replenishment of fresh helium, resulting in huge waste of helium resources and increased production costs.
[0006] To achieve the above objectives, this utility model provides the following technical solution: This utility model discloses a device for reducing helium waste, comprising: The first support has a second support on the right side; The cavity is installed in the second bracket; The piping system has an air inlet port connected to the cavity. A recycling tank is installed above the first bracket. The recycling tank has three air inlet ports, one of which is connected to an air outlet port of the pipeline system. A recovery pump is installed in the first bracket. The air inlet of the recovery pump is connected to another air outlet of the pipeline system. The air outlet of the recovery pump is connected to the second air inlet of the recovery tank through the pipeline system. A compression and storage mechanism is disposed in the first bracket and is located on the left side of the recovery pump. The air inlet of the compression and storage mechanism is connected to the air outlet of the recovery tank through a pipeline system, and the air outlet of the compression and storage mechanism is connected to the cavity through the pipeline system.
[0007] In one possible implementation, the piping system includes: The first pipeline assembly is arranged in pairs, with one end of each first pipeline assembly connected to the air outlet port of the cavity, the other end of one first pipeline assembly connected to the first air inlet port of the recovery tank, and the other end of the other first pipeline assembly connected to the air inlet port of the recovery pump. The second pipeline assembly has one end connected to the air outlet port of the recovery pump, and the other end connected to the second air inlet port of the recovery tank. The third pipeline assembly is installed at one end in the recovery tank, and the other end of the third pipeline assembly is connected to the air inlet port of the compression storage mechanism; The fourth pipeline assembly is disposed within the compression and storage mechanism.
[0008] In one possible implementation, the first conduit assembly includes: The first gas supply pipe is provided in pairs, one of which is connected at one end to the first exhaust valve, and the other of which is connected at one end to the second exhaust valve. The first connector, arranged in pairs, is installed at the other end of the first gas supply pipe; The connecting pipe has one end connected to the air outlet port of the cavity, and the other end connected in sequence to the second exhaust valve and the first exhaust valve; The second gas supply pipes are arranged in pairs, with one end inserted into the first connector. One of the second gas supply pipes is connected to the first air inlet port of the recovery tank at the other end, and the other of the second gas supply pipes is connected to the air inlet port of the recovery pump at the other end.
[0009] In one possible implementation, the compressed storage mechanism includes: The compressor's inlet end is connected to the outlet end of the recycling tank via the third pipeline assembly, and the compressor's outlet end is connected to one end of the fourth pipeline assembly. The high-pressure tank is connected to the other end of the fourth pipeline assembly.
[0010] In one possible implementation, the fourth piping assembly includes: The first conduit has one end connected to the compressor and the other end connected to the inlet of the one-way valve. The third connector has one bottom end connected to the outlet end of the one-way valve via a pipeline, one end of the second conduit is connected to the third connector, and the other end of the second conduit is connected to the outlet end of the high-pressure tank.
[0011] In one possible implementation, the recovery tank is also connected to a gas supply assembly, which includes a gas replenishment valve, a pressure regulating valve, and a gas source component. One end of the gas replenishment valve is connected to the third gas inlet port of the recovery tank, and the other end of the gas replenishment valve is connected to one end of the pressure regulating valve through a pipeline. The gas source component is connected to the other end of the pressure regulating valve through a pipeline.
[0012] In one possible implementation, both the recovery tank and the high-pressure tank are equipped with pressure sensors.
[0013] This utility model has the following advantages: This invention maintains the internal pressure of the helium recovery system at a slightly positive pressure (1.05~1.25 atmospheres), fundamentally reducing the infiltration of outside air and effectively preventing the dilution of the recovered helium, thereby significantly reducing helium consumption and saving production costs. Simultaneously, the device ensures stable recovered helium concentration by manually adjusting or controlling the pressure within a certain range using system electrical signals. Its integrated and compact structure (with a support frame rationally arranging the cavity, recovery tank, recovery pump, and compression storage mechanism) facilitates management and maintenance. Precise control of the entire system through different input quantities ensures more reliable operation. Furthermore, it demonstrates significant environmental and long-term economic benefits in extending equipment lifespan and reducing helium resource consumption. Attached Figure Description
[0014] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.
[0015] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.
[0016] Figure 1 A perspective view of a device for reducing helium waste provided by this utility model; Figure 2 A partial perspective view of the first pipeline assembly provided by this utility model; Figure 3 A front view of the first pipeline assembly, the second pipeline assembly, the third pipeline assembly, and the fourth pipeline assembly provided for this utility model; Figure 4 A partial perspective view of a set of pipes in the first pipe assembly provided by this utility model; Figure 5 A partial perspective view of another set of pipes for the first pipe assembly provided by this utility model; Figure 6 A partial front view of the first and second piping assemblies provided for this utility model; Figure 7 A front view of the compression storage mechanism provided by this utility model; Figure 8 A front view of the fourth pipeline assembly provided by this utility model; In the diagram: 1. Cavity; 2. Piping system; 21. First piping assembly; 211. First gas supply pipe; 212. First exhaust valve; 213. First connector; 214. Second gas supply pipe; 215. Second exhaust valve; 216. Connecting pipe; 22. Second piping assembly; 23. Third piping assembly; 24. Fourth piping assembly; 241. First conduit; 242. One-way valve; 243. Third connector; 244. Second conduit; 4. Recovery tank; 5. Recovery pump; 7. Compression and storage mechanism; 71. Compressor; 72. High-pressure tank; 8. First support; 9. Second support. Detailed Implementation
[0017] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0018] Please refer to Figures 1-8 The present invention discloses a device for reducing helium waste, as follows: Figure 1The system includes a cavity 1, a piping system 2, a recovery tank 4, a recovery pump 5, a compression and storage mechanism 7, a first support 8, and a second support 9. The second support 9 is located to the right of the first support 8. The cavity 1 is installed in the second support 9. The air inlet port of the piping system 2 is connected to the cavity 1. The recovery tank 4 is installed above the first support 8 and has three air inlets. One of the air inlets of the recovery tank 4 is connected to one of the air outlet ports of the piping system 2. The recovery pump 5 is installed in the first support 8. The air inlet port of the recovery pump 5 is connected to another air outlet port of the piping system 2. The air outlet port of the recovery pump 5 is connected to the second air inlet port of the recovery tank 4 through the piping system 2. The compression and storage mechanism 7 is located in the first support 8 and is located to the left of the recovery pump 5. The air inlet port of the compression and storage mechanism 7 is connected to the air outlet port of the recovery tank 4 through the piping system 2. The air outlet port of the compression and storage mechanism 7 is connected to the cavity 1 through the piping system 2.
[0019] The usage process of this utility model embodiment is as follows: First, the component to be tested is sealed in cavity 1 and a vacuum is drawn. Then, helium is introduced into it by high-pressure tank 72 for leak detection. After the test is completed, the recovery process is started. First, the pressure difference between the component to be tested and recovery tank 4 is used to make most of the helium flow into recovery tank 4 automatically through the first pipeline assembly 21. Then, the recovery pump 5 is started to completely draw the remaining helium into recovery tank 4 through the first pipeline assembly 21 and the second pipeline assembly 22. When the helium in recovery tank 4 accumulates to a certain amount, the gas is delivered to compressor 71 through third pipeline assembly 23. After compressor 71 is started, the helium is compressed and stored in high-pressure tank 72 through fourth pipeline assembly 24 for recycling. Throughout the process, the core of this invention lies in the coordinated action of a pressure sensor and multiple valves to actively and precisely maintain the pressure in the recovery tank 4 and the connected pipeline system at a slightly positive pressure of 1.05 to 1.25 atmospheres. Although this may result in a small amount of helium leakage, it can completely prevent outside air from seeping into the system, thereby effectively preventing the recovered helium from being diluted. This solves the huge waste problem of traditional negative pressure recovery devices having to discharge and replenish new helium due to a decrease in concentration.
[0020] In a specific embodiment, such as Figures 2-3The piping system 2 includes a first piping assembly 21, a second piping assembly 22, a third piping assembly 23, and a fourth piping assembly 24. The first piping assemblies 21 are arranged in pairs, with one end of each assembly connected to the outlet port of the cavity 1. One end of one assembly 21 is connected to the first inlet port of the recovery tank 4, and the other end is connected to the inlet port of the recovery pump 5. One end of the second piping assembly 22 is connected to the outlet port of the recovery pump 5, and the other end is connected to the second inlet port of the recovery tank 4. One end of the third piping assembly 23 is installed in the recovery tank 4, and the other end is connected to the inlet port of the compression and storage mechanism 7. The fourth piping assembly 24 is disposed within the compression and storage mechanism 7. The first piping assembly 21, the second piping assembly 22, the third piping assembly 23, and the fourth piping assembly 24 together constitute the path for helium recovery, compression, and storage. The piping system 2 also includes a fifth piping assembly (not shown in the figure), which constitutes the transport channel for helium reuse. Specifically: one path of the first piping assembly 21 establishes a direct connection between the detection chamber 1 and the recovery tank 4. Its main function is to utilize the pressure difference between the two to initially recover most of the helium in the test piece after the test is completed. The second piping assembly 22, together with the other path of the first piping assembly 21, forms a path between the chamber 1 and the recovery tank 4, passing through the recovery pump 5. Its function is to activate the recovery pump 5 after the pressure difference is recovered to forcibly draw the helium remaining in the chamber and piping into the recovery tank 4, achieving deep recovery. When the gas in the recovery tank 4 reaches a certain amount, the third piping assembly 23 serves as an output channel to deliver the helium to the compressor 71 for compression. The compressed gas is then fed into the high-pressure tank for helium storage through the fourth piping assembly 24. Finally, the gas flows back from the high-pressure tank 72 to the chamber 1 through the fifth piping assembly to provide a gas source for the next detection cycle. These five pipelines work together in an orderly manner to ensure the efficient circulation of helium within the system, and are the core fluid channels for realizing the recovery and reuse of helium.
[0021] In a specific embodiment, such as Figures 4-6The first pipeline assembly 21 includes a first gas supply pipe 211, a first exhaust valve 212, a first connector 213, a second gas supply pipe 214, a second exhaust valve 215, and a connecting pipe 216. One end of the connecting pipe 216 is connected to the gas outlet port of the cavity 1, and the other end is connected to the second exhaust valve 215 and the first exhaust valve 212 in sequence. The first gas supply pipes 211 are arranged in pairs, with one end of one first gas supply pipe 211 connected to the first exhaust valve 212 and the other end of one first gas supply pipe 211 connected to the second exhaust valve 215. The first connectors 213 are arranged in pairs and installed at the other end of the first gas supply pipes 211. The second gas supply pipes 214 are arranged in pairs, with one end inserted into the first connector 213. The other end of one second gas supply pipe 214 is connected to the first air inlet port of the recovery tank 4, and the other end of the other second gas supply pipe 214 is connected to the air inlet port of the recovery pump 5. The connecting pipe 216, together with a set of connected pipelines (first exhaust valve 212, first gas supply pipe 211, first connector 213, and second gas supply pipe 214), constitutes the first recovery path for helium from the detection chamber 1 to the recovery tank 4. Its operation and function are as follows: The first exhaust valve 212 acts as the starting control switch for this path. One end extends into the chamber 1 through the connecting pipe 216, directly controlling the discharge of helium from the chamber; the other end connects to the first gas supply pipe 211, responsible for delivering the extracted helium to the first connector 213. In this embodiment, the connector is a three-way pipe that merges the gas flows from different chambers with the system. Finally, the merged helium is delivered to the first inlet port of the recovery tank 4 through the second gas supply pipe 214. The main function of this assembly is to first open the first exhaust valve 212 after detection, utilizing the pressure difference between the chamber and the recovery tank to achieve preliminary automatic helium recovery.
[0022] The connecting pipe 216, together with another set of piping components (second exhaust valve 215, first gas supply pipe 211, first connector 213 and second gas supply pipe 214) and the second piping component 22, constitutes a forced recovery path for helium from the detection chamber 1 through the recovery pump 5 to the recovery tank 4. Its working process and function are as follows: The second exhaust valve 215 serves as the starting control switch for this path. One end of it extends into the chamber 1 through the connecting pipe 216, and the other end is connected to the first gas supply pipe 211. It is responsible for forming a channel to draw out the residual helium in the chamber 1 after the differential pressure recovery is completed. The airflow in multiple chambers 1 then converges through the first connector 213 (a three-way pipe in this embodiment) and is introduced into the inlet port of the recovery pump 5 through the second gas supply pipe 214. The recovery pump 5 serves as a power source to forcibly recover the helium and finally pumps it into the recovery tank 4 through the second piping component 22. The main function of this assembly is to establish an active extraction channel by opening the second exhaust valve 215 and starting the recovery pump 5 after the initial differential pressure recovery, thereby completely recovering the residual helium in the system and greatly improving the helium recovery efficiency.
[0023] In a specific embodiment, such as Figure 7 The compression and storage mechanism 7 includes a compressor 71 and a high-pressure tank 72. The inlet of the compressor 71 is connected to the outlet of the recovery tank 4 via a third pipeline assembly 23. The outlet of the compressor 71 is connected to one end of a fourth pipeline assembly 24, and the high-pressure tank 72 is connected to the other end of the fourth pipeline assembly 24. The compressor 71 and the high-pressure tank 72 together constitute the central hub for the compression, storage, and supply of helium, and are modules that convert recovered low-pressure helium into a recyclable high-pressure gas source. Their collaborative workflow is as follows: When the helium in the recovery tank 4 accumulates to a set amount, the compressor 71 starts, and its inlet draws low-pressure helium from the recovery tank 4 through the third pipeline assembly 23 and compresses it. The compressed high-pressure helium is output through the fourth pipeline assembly 24 (containing a one-way valve 242). The one-way valve 242 ensures that the airflow can only flow from the compressor to the high-pressure tank, effectively preventing backflow of high-pressure gas and damage to the compressor. The high-pressure helium is finally transported and stored in the high-pressure tank 72 for later use. The core function of this combined mechanism is to compress and store the recovered, dispersed low-pressure helium gas, providing an immediately usable high-pressure helium source for the next testing cycle. This ensures the recycling of helium resources and significantly reduces consumption.
[0024] In a specific embodiment, such as Figure 8The fourth pipeline assembly 24 includes a first conduit 241, a one-way valve 242, a third connector 243, and a second conduit 244. One end of the first conduit 241 is connected to the compressor 71, and the other end is connected to the inlet end of the one-way valve 242. The bottom end of the third connector 243 is connected to the outlet end of the one-way valve 242 via a pipeline. One end of the second conduit 244 is connected to the third connector 243, and the other end is connected to the outlet end of the high-pressure tank 72. The first conduit 241, the one-way valve 242, the third connector 243, and the second conduit 244 together constitute the fourth pipeline assembly 24, forming a safe delivery channel for helium from the compressor 71 to the high-pressure tank 72. The specific connections and functions are as follows: One end of the first conduit 241 is connected to the outlet of the compressor 71, responsible for receiving and transporting the compressed high-pressure helium; the other end is connected to the inlet of the one-way valve 242, which is a key safety component in this section of the pipeline. Its function is to ensure that the helium can only flow unidirectionally from the compressor to the high-pressure tank, completely preventing the gas in the high-pressure tank from flowing back when the compressor stops, thereby protecting the compressor from damage; the outlet of the one-way valve 242 is connected to the third connector 243 (usually a tee or elbow joint) to change the flow direction and facilitate the connection transition; finally, the high-pressure helium is transported from the third connector 243 to the high-pressure tank 72 through the second conduit 244. The core function of this assembly is to construct a safe, unidirectional high-pressure gas flow channel, reliably and leak-free introducing the pressurized helium generated by the compressor into the high-pressure tank for storage, which is an important guarantee for the safe and efficient operation of the entire compression and storage process.
[0025] In one specific embodiment, the recovery tank 4 is also connected to a gas supply assembly (not shown in the figure). The gas supply assembly includes a gas replenishment valve (not shown in the figure), a pressure regulating valve (not shown in the figure), and a gas source component (not shown in the figure). One end of the gas replenishment valve is connected to the third gas inlet port of the recovery tank 4, and the other end of the gas replenishment valve is connected to one end of the pressure regulating valve through a pipeline. The gas source component is connected to the other end of the pressure regulating valve through a pipeline. The gas replenishment valve, the pressure regulating valve, and the gas source component together constitute a gas replenishment system that maintains a slight positive pressure in the system. Its core function is that when the pressure sensor detects that the system pressure is lower than the set lower limit due to normal consumption or a small amount of leakage, the gas source component provides helium. After the pressure is stabilized by the pressure regulating valve, the gas replenishment valve precisely replenishes helium into the recovery tank according to the control signal, so that the system pressure quickly rises and stabilizes within the set atmospheric pressure threshold. This process, at the cost of a very small and controllable amount of helium replenishment, actively avoids the intrusion of outside air, thereby fundamentally preventing the dilution of the recovered helium and eliminating the huge waste of traditional devices that are forced to release large amounts of gas and refill due to insufficient traditional concentration.
[0026] In a specific embodiment, pressure sensors (not shown in the figure) are installed in both the recovery tank 4 and the high-pressure tank 72. These pressure sensors on both tanks together constitute the pressure monitoring and intelligent control mechanism of the entire device. Their specific functions are as follows: The pressure sensor on the recovery tank 4 acts as a sentinel to maintain a slightly positive pressure state in the system. It monitors the pressure value in the core area of the recovery loop in real time and feeds the data back to the control system. Based on this, the system precisely controls the replenishment valve and pressure regulating valve to dynamically adjust the helium concentration, thereby stabilizing the pressure in the recovery tank and its associated pipelines within the target range of 1.05 to 1.25 atmospheres, fundamentally reducing the infiltration of outside air and ensuring the concentration of recovered helium. Simultaneously, the sensor also serves as a trigger signal source for starting the compressor 71. When the helium storage in the recovery tank (represented by pressure) reaches the set value, the compression process is automatically triggered. The pressure sensor on high-pressure tank 72 is primarily responsible for monitoring the storage status. It displays the real-time level and pressure of compressed helium inside the tank, ensuring a stable and qualified pressure source when filling the components under test. It also serves as a safety redundancy protection for the high-pressure tank, preventing overpressure operation. The coordinated operation of these two pressure sensors creates a reliable, automated, intelligent closed-loop control system for the entire process of helium recovery, storage, and reuse. This system provides the technological guarantee for achieving efficient helium recycling and significantly reducing consumption.
[0027] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.
Claims
1. A device for reducing helium waste, characterized in that, include: The first bracket (8) is provided with a second bracket (9) on the right side; The cavity (1) is installed in the second bracket (9); The pipeline system (2) has an air inlet port connected to the cavity (1); The recycling tank (4) is installed above the first bracket (8). The recycling tank (4) is provided with three air inlet ports. One of the air inlet ports of the recycling tank (4) is connected to one air outlet port of the pipeline system (2). A recovery pump (5) is installed in the first bracket (8). The air inlet of the recovery pump (5) is connected to another air outlet of the pipeline system (2). The air outlet of the recovery pump (5) is connected to the second air inlet of the recovery tank (4) through the pipeline system (2). A compression storage mechanism (7) is disposed in the first bracket (8). The compression storage mechanism (7) is disposed on the left side of the recovery pump (5). The air inlet of the compression storage mechanism (7) is connected to the air outlet of the recovery tank (4) through the pipeline system (2). The air outlet of the compression storage mechanism (7) is connected to the cavity (1) through the pipeline system (2).
2. The apparatus for reducing helium waste as described in claim 1, characterized in that, The pipeline system (2) includes: The first pipeline assembly (21) is arranged in pairs. One end of each of the two first pipeline assemblies (21) is connected to the air outlet port of the cavity (1). The other end of one of the first pipeline assemblies (21) is connected to the first air inlet port of the recovery tank (4). The other end of the other first pipeline assembly (21) is connected to the air inlet port of the recovery pump (5). The second pipeline assembly (22) is connected at one end to the outlet port of the recovery pump (5) and at the other end to the second inlet port of the recovery tank (4); The third pipeline assembly (23) is installed in the recycling tank (4) at one end and connected to the air inlet of the compression storage mechanism (7) at the other end. The fourth pipeline assembly (24) is disposed within the compression storage mechanism (7).
3. The apparatus for reducing helium waste as described in claim 2, characterized in that, The first piping assembly (21) includes: The first gas supply pipe (211) is arranged in pairs, one end of which is connected to the first exhaust valve (212), and the other end of which is connected to the second exhaust valve (215). The first connector (213) is provided in pairs and installed at the other end of the first gas supply pipe (211); The connecting pipe (216) is connected at one end to the air outlet port of the cavity (1) and at the other end to the second exhaust valve (215) and the first exhaust valve (212) in sequence; The second gas supply pipe (214) is arranged in pairs, with one end inserted into the first connector (213). One of the second gas supply pipes (214) is connected to the first air inlet port of the recovery tank (4) at the other end, and the other second gas supply pipe (214) is connected to the air inlet port of the recovery pump (5) at the other end.
4. The apparatus for reducing helium waste as described in claim 2, characterized in that, The compressed storage mechanism (7) includes: The compressor (71) is connected at its inlet end to the outlet end of the recycling tank (4) via the third pipeline assembly (23), and the outlet end of the compressor (71) is connected to one end of the fourth pipeline assembly (24). The high-pressure tank (72) is connected to the other end of the fourth pipeline assembly (24).
5. The apparatus for reducing helium waste as described in claim 4, characterized in that, The fourth pipeline assembly (24) includes: The first conduit (241) is connected at one end to the compressor (71), and at the other end to the inlet of the one-way valve (242); The third connector (243) has one bottom end connected to the outlet end of the one-way valve (242) via a pipeline, and one end of the second conduit (244) is connected to the third connector (243), and the other end of the second conduit (244) is connected to the outlet end of the high-pressure tank (72).
6. The apparatus for reducing helium waste as described in claim 1, characterized in that, The recovery tank (4) is also connected to a gas supply assembly, which includes a gas replenishment valve, a pressure regulating valve and a gas source component. One end of the gas replenishment valve is connected to the third gas inlet port of the recovery tank (4), and the other end of the gas replenishment valve is connected to one end of the pressure regulating valve through a pipeline. The gas source component is connected to the other end of the pressure regulating valve through a pipeline.
7. The apparatus for reducing helium waste as described in claim 4, characterized in that, Pressure sensors are installed in both the recycling tank (4) and the high-pressure tank (72).