Ionic liquid leakage collecting, monitoring and alarming system for ionic liquid compressor
By integrating a leak collection, monitoring, and alarm system into the ionic liquid compressor, and utilizing an I-shaped piston, one-way valve, liquid level sensor, and silencer, the problem of untimely detection of ionic liquid leaks is solved, improving equipment safety and maintenance efficiency, and reducing operating costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-03-03
AI Technical Summary
Existing ionic liquid compressors lack effective leak collection, monitoring, and alarm systems, resulting in the inability to detect ionic liquid leaks in a timely manner, which affects the safety and stability of the equipment.
A system integrating leak collection, real-time monitoring and alarm was designed. It adopts an I-shaped piston, a one-way valve, a liquid level sensor and a silencer. The real-time detection and alarm of leaks are realized through the magnetic levitation linkage mechanism of the liquid level sensor, and the pressure is balanced by the silencer. Polyester resin is used to reduce liquid retention.
It enables immediate feedback and safety response to ionic liquid leaks, reduces the risk of hydrogen leaks, improves equipment safety and maintenance efficiency, and reduces ionic liquid waste and equipment wear.
Smart Images

Figure CN223964568U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gas compressor technology, specifically to an ionic liquid leakage collection, monitoring and alarm system for ionic liquid compressors. Background Technology
[0002] Currently, hydrogen compressors are mainly divided into three types: diaphragm compressors, reciprocating compressors, and ionic liquid compressors. Compared with other compressors, ionic liquid compressors have advantages such as high efficiency, long service life, ability to start and stop frequently, and low gas pollution, and have become the ideal solution for ultra-high pressure hydrogen compression. As a key technology in ionic liquid compressors, ionic liquids need to have good physical properties and stability, and must ensure low compressibility and high lubricity under high pressure, which makes ionic liquids relatively expensive. Leakage can cause significant losses. In addition, ionic liquid leaks may lead to hydrogen leaks, causing safety accidents; therefore, the collection, monitoring, and alarm of ionic liquid leaks are particularly important.
[0003] Ionic liquid compressors utilize ionic liquids to separate hydrogen from the piston and compress the hydrogen using the ionic liquid. Therefore, ionic liquid leakage can severely affect the normal operation of the compressor. Furthermore, because the piston seal is replaced with a liquid seal, excessive leakage will inevitably cause hydrogen to escape, leading to safety accidents. Therefore, the ionic liquid collection system needs to have leakage collection, monitoring, and alarm functions. Thus, designing an ionic liquid leakage collection, monitoring, and alarm system for ionic liquid compressors is crucial for maintaining their safe and stable operation. Currently, most ionic liquid compressor collection systems do not integrate leakage monitoring and alarm functions, and the few that do have integrated monitoring are insensitive and cannot reflect the leakage amount in real time. Utility Model Content
[0004] The purpose of this invention is to provide a system that integrates leak collection, real-time monitoring, and alarm functions to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an ionic liquid leakage collection, monitoring and alarm system for an ionic liquid compressor, comprising a compression cylinder, an I-shaped piston disposed inside the compression cylinder, an ionic liquid collection tank communicating with the compression cylinder, a one-way valve connecting the compression cylinder and the ionic liquid collection tank, a silencer disposed above the ionic liquid collection tank, and a liquid level sensor installed below the ionic liquid collection tank. The I-shaped piston divides the inside of the compression cylinder into a compression chamber, an isolation chamber, and a drive chamber. The compression chamber is filled with ionic liquid for gas compression. A one-way valve is installed in the pipeline between the compression cylinder and the ionic liquid collection tank. When the I-shaped piston moves downward, the one-way valve opens, allowing leaked ionic liquid to flow into the ionic liquid collection tank. When the I-shaped piston moves upward, the one-way valve closes to prevent liquid backflow. The liquid level sensor includes a float, a magnetic ring, and a measuring rod. When ionic liquid enters the collection tank, the float drives the magnetic ring to move along the measuring rod, triggering an alarm signal. The silencer is connected to the ionic liquid collection tank to balance the pressure inside and outside the tank and prevent bursting. The inside of the I-shaped piston is filled with polyester resin. When the seal fails, the polyester resin prevents ionic liquid from remaining in the piston cavity.
[0006] Preferably, when there are multiple compression cylinders, each compression cylinder is connected to the ion liquid collection tank through parallel pipelines, and the liquid level sensor independently monitors the leakage of each branch, which facilitates quick location of the faulty compression cylinder.
[0007] Preferably, the magnetic ring of the liquid level sensor is fixedly connected to the float, and the measuring rod is vertically installed at the bottom of the collection tank. The movement of the magnetic ring triggers the liquid level sensor body to generate an electrical signal and send an alarm.
[0008] Preferably, a sealing ring is provided between the isolation chamber and the drive chamber of the I-shaped piston. When the sealing ring fails, the leaked ionic liquid flows into the collection tank through the isolation chamber.
[0009] Preferably, the polyester resin fills the cavities inside the I-shaped piston, and its density is lower than that of the ionic liquid, which reduces the piston's movement resistance and assists in the discharge of the liquid.
[0010] Preferably, the silencer has a porous structure, which reduces noise and vibration caused by sudden pressure changes inside the collection box through gas diffusion.
[0011] Preferably, the opening and closing action of the one-way valve is synchronized with the stroke of the I-shaped piston, and unidirectional flow is achieved through mechanical linkage or pressure difference control.
[0012] Preferably, the top of the measuring rod is provided with a locking ring to limit the range of motion of the magnetic ring.
[0013] The working process of this utility model is as follows:
[0014] Leakage and Liquid Collection Process: When the sealing ring in the compression cylinder fails, the ionic liquid in the compression chamber leaks into the isolation chamber. When the I-shaped piston moves downward, the pressure in the drive chamber decreases, the one-way valve opens, and the leaked ionic liquid is forced into the ionic liquid collection tank under the pressure of the piston movement; when the I-shaped piston moves upward, the one-way valve closes, preventing the liquid from flowing back into the compression cylinder and ensuring that the leaked liquid flows into the collection tank in one direction.
[0015] Liquid level monitoring and alarm triggering process: The ionic liquid entering the collection tank pushes the float of the liquid level sensor to rise with the liquid surface, and the float drives the magnetic ring to move vertically along the measuring rod. When the liquid level reaches the preset threshold, the magnetic ring triggers the main body of the liquid level sensor to generate an electrical signal and send an alarm to the external control system, notifying the operator to perform timely maintenance.
[0016] Pressure balancing and safety protection process: The silencer, through its porous structure, connects to the inside and outside of the collection tank, balancing pressure surges caused by liquid inflow or gas escape, and preventing the tank from bursting due to pressure differences. Simultaneously, the polyester resin filling the I-shaped piston adsorbs residual ionic liquid when the seal fails, reducing liquid retention in piston cavities, minimizing losses, and assisting in liquid discharge.
[0017] The beneficial effects of this utility model are as follows:
[0018] (1) This utility model utilizes the magnetic levitation linkage mechanism of the liquid level sensor (the float drives the magnetic ring) to enable the system to detect changes in the liquid level in the ionic liquid collection tank in real time and trigger an alarm signal when the leakage reaches a preset threshold. This design solves the problem of monitoring lag in traditional systems, realizes immediate feedback on leakage, reduces the waste of ionic liquid and the risk of hydrogen leakage, and improves safety response efficiency.
[0019] (2) In this utility model, the silencer adopts a porous structure to connect the inside and outside of the collection box, effectively balancing the pressure change caused by liquid inflow or gas escape, and avoiding the box from bursting due to pressure difference. Combined with the polyester resin filled inside the I-shaped piston, residual liquid is further adsorbed, preventing ionic liquid from remaining in the piston cavity, reducing wear and reducing maintenance frequency.
[0020] (3) The parallel design of the compression cylinders in this utility model allows each cylinder to be connected to the collection tank through an independent pipeline, and the liquid level sensor independently monitors the leakage of each branch. When an alarm is triggered in a branch, the operator can quickly lock the faulty compression cylinder by closing the corresponding check valve, without having to stop the machine to check all equipment, which significantly shortens the maintenance time and improves the continuity of system operation. Attached Figure Description
[0021] Figure 1 This is the schematic diagram of the system;
[0022] Figure 2 This is a cross-sectional view of the compression cylinder;
[0023] Figure 3 This is a structural diagram of a liquid level sensor;
[0024] In the diagram: 101, liquid level sensor; 102, ionic liquid collection tank; 103, silencer; 104, one-way valve; 105, compression cylinder; 201, compression chamber; 202, ionic liquid; 203, sealing ring; 204, polyester resin; 205, isolation chamber; 206, I-shaped piston; 207, drive chamber; 301, locking ring; 302, measuring rod; 303, magnetic ring; 304, float; 305, liquid level sensor body. Detailed Implementation
[0025] The present invention will now be described in further detail with reference to the accompanying drawings.
[0026] like Figure 1-3 The system shown is an ionic liquid compressor ionic liquid leakage collection, monitoring and alarm system, including a compression cylinder 105, an I-shaped piston 206 disposed inside the compression cylinder 105, an ionic liquid collection tank 102 communicating with the compression cylinder 105, a one-way valve 104 connecting the compression cylinder 105 and the ionic liquid collection tank 102, a silencer 103 disposed above the ionic liquid collection tank 102, and a liquid level sensor 101 installed below the ionic liquid collection tank 102. The I-shaped piston 206 divides the interior of the compression cylinder 105 into a compression chamber 201, an isolation chamber 205, and a drive chamber 207. The compression chamber 201 is filled with ionic liquid 202 for gas compression. A one-way valve 104 is installed in the pipeline between the compression cylinder 105 and the ionic liquid collection tank 102. When the I-shaped piston 206 moves downward, the one-way valve 104 opens, allowing leaked ionic liquid 202 to flow into the ionic liquid collection tank 102. When the I-shaped piston 206 moves upward, the one-way valve 104 closes, preventing leakage. To prevent liquid backflow, the liquid level sensor 101 includes a float 304, a magnetic ring 303, and a measuring rod 302. When the ionic liquid 202 enters the collection tank 102, the float 304 drives the magnetic ring 303 to move along the measuring rod 302, triggering an alarm signal. The silencer 103 is connected to the ionic liquid collection tank 102 to balance the pressure inside and outside the tank and prevent bursting. The I-shaped piston 206 is filled with polyester resin 204. When the seal fails, the polyester resin 204 prevents the ionic liquid 202 from remaining in the piston cavity.
[0027] When there are multiple compression cylinders 105, each compression cylinder 105 is connected to the ion liquid collection tank 102 through parallel pipelines. The liquid level sensor 101 independently monitors the leakage of each branch, which facilitates the rapid location of the faulty compression cylinder.
[0028] The magnetic ring 303 of the liquid level sensor 101 is fixedly connected to the float 304. The measuring rod 302 is vertically installed at the bottom of the collection tank 102. The movement of the magnetic ring 303 triggers the liquid level sensor body 305 to generate an electrical signal and send an alarm.
[0029] A sealing ring 203 is provided between the isolation chamber 205 and the driving chamber 207 of the I-shaped piston 206. When the sealing ring 203 fails, the leaked ionic liquid 202 flows into the collection tank 102 through the isolation chamber 205.
[0030] Polyester resin 204 fills the cavities inside the I-shaped piston 206. Its density is lower than that of ionic liquid 202, which reduces piston movement resistance and assists in liquid discharge.
[0031] The silencer 103 has a porous structure, which reduces the noise and vibration caused by sudden pressure changes inside the collection box 102 through gas diffusion.
[0032] The opening and closing action of the one-way valve 104 is synchronized with the stroke of the I-shaped piston 206, and unidirectional flow is achieved through mechanical linkage or pressure difference control.
[0033] The top of the measuring rod 302 is provided with a locking ring 301, which is used to limit the range of motion of the magnetic ring 303.
[0034] The working process of this utility model is as follows:
[0035] Leakage and Liquid Collection Process: When the sealing ring 203 in the compression cylinder 105 fails, the ionic liquid 202 in the compression chamber 201 leaks into the isolation chamber 205. When the I-shaped piston 206 moves downward, the pressure in the drive chamber 207 decreases, the one-way valve 104 opens, and the leaked ionic liquid 202 is forced into the ionic liquid collection tank 102 under the piston's movement pressure. When the I-shaped piston 206 moves upward, the one-way valve 104 closes, preventing the liquid from flowing back to the compression cylinder 105 and ensuring that the leaked liquid flows into the collection tank in one direction.
[0036] Liquid level monitoring and alarm triggering process: The ionic liquid 202 entering the collection tank 102 pushes the float 304 of the liquid level sensor 101 to rise with the liquid surface. The float 304 drives the magnetic ring 303 to move vertically along the measuring rod 302. When the liquid level reaches the preset threshold, the magnetic ring 303 triggers the liquid level sensor body 305 to generate an electrical signal and send an alarm to the external control system to notify the operator to perform timely maintenance.
[0037] Pressure balancing and safety protection process: The silencer 103, through its porous structure, is connected to the inside and outside of the collection box 102, balancing pressure changes caused by liquid inflow or gas escape, and preventing the box from bursting due to pressure difference. At the same time, the polyester resin 204 filled inside the I-shaped piston 206 adsorbs residual ionic liquid 202 when the seal fails, reducing liquid retention in the piston cavity, reducing losses, and assisting in liquid discharge.
[0038] In summary, this invention is applicable to fields such as hydrogen compression and chemical engineering, significantly improving the safety and maintenance efficiency of ion liquid compressors and reducing operating costs.
[0039] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, based on the technical teachings provided by this utility model and as common knowledge in the mechanical field, other equivalent modifications and improvements can be made, and these should also be considered within the scope of protection of this utility model.
Claims
1. An ionic liquid leakage collection, monitoring and alarm system for an ionic liquid compressor, characterized by, The application relates to a gas compression device with ionic liquid leakage collection function. The application relates to a gas compression device with ionic liquid leakage collection function. The application relates to a gas compression device with ionic liquid leakage collection function. The application relates to a gas compression device with ionic liquid leakage collection function. The application relates to a gas compression device with ionic liquid leakage collection function. The application relates to a gas compression device with ionic liquid leakage collection function. The application relates to a gas compression device with ionic liquid leakage collection function.
2. The ionic liquid leakage collection, monitoring and alarm system for ionic liquid compressors of claim 1, wherein: The application relates to a gas compression device with ionic liquid leakage collection function.
3. The ionic liquid leakage collection, monitoring and alarm system for ionic liquid compressor according to claim 1 or 2, characterized in that: The application relates to a gas compression device with ionic liquid leakage collection function.
4. The ionic liquid leakage collection, monitoring and alarm system for ionic liquid compressors of claim 3, wherein: The application relates to a gas compression device with ionic liquid leakage collection function.
5. The ionic liquid leakage collection, monitoring and alarm system for ionic liquid compressors of claim 4, wherein: The application relates to a gas compression device with ionic liquid leakage collection function.
6. The ionic liquid leakage collection, monitoring and alarm system for an ionic liquid compressor of claim 5, wherein: The application relates to a gas compression device with ionic liquid leakage collection function.
7. The ionic liquid leakage collection, monitoring and alarm system for an ionic liquid compressor of claim 6, wherein: The application relates to a gas compression device with ionic liquid leakage collection function.
8. The ionic liquid leakage collection, monitoring and alarm system for an ionic liquid compressor of claim 7, wherein: The application relates to a gas compression device with ionic liquid leakage collection function. The application relates to a gas compression device with ionic liquid leakage collection function. The application relates to a gas compression device with ionic liquid leakage collection function. The application relates to a gas compression device with ionic liquid leakage collection function. The application relates to a gas compression device with ionic liquid leakage collection function. The application relates to a gas compression device with ionic liquid leakage collection function. The application relates to a gas compression device with ionic liquid leakage collection function. The application relates to a gas compression device with ionic liquid leakage collection function. 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