A liquid-driven vertical ion liquid-sealed compression cylinder assembly

Abstract

The present invention relates to the technical field of ionic liquid cylinders, and in particular to a liquid-driven vertical ionic liquid-sealed compression cylinder assembly. The assembly comprises a cylinder liner, a cylinder head disposed on the top of the cylinder liner, an intake check valve and an exhaust check valve disposed within the cylinder head, a gas piston movably disposed within the cylinder liner, an ionic liquid storage chamber disposed between the sidewalls of the gas piston and the sidewalls of the cylinder liner, a scraper assembly mounted on the sidewall of the gas piston above the ionic liquid storage chamber, a liquid impact prevention structure mounted within the cylinder head, an ionic liquid leakage detection structure mounted on one side of the bottom of the cylinder liner, a hydraulic drive device mounted on the bottom of the cylinder liner, and a liquid drive buffer structure disposed within the hydraulic drive device. A double sealing structure is formed to prevent gas leakage between the gas piston and the cylinder liner; hydraulic drive of the gas piston is achieved with good stability; the buffer rod can open a connecting hole to allow hydraulic oil to enter in advance to act as a buffer, thereby protecting the oil piston and cylinder; and the leakage detection structure can detect ionic liquid leakage signals to ensure equipment safety.

Description

Technical field:

[0001] The present invention relates to the technical field of ionic liquid cylinders, and in particular to a liquid-driven vertical ionic liquid-sealed compression cylinder assembly. Background technology:

[0002] Currently, ionic liquid-sealed compression cylinders are a new type of device for pressurizing gas. Patent application publication number CN116044712A discloses an ionic liquid compressor. By injecting ionic liquid into the compression chamber of the cylinder, this provides cooling and lubrication for the piston and improves the seal between the piston and cylinder. However, existing ionic liquid cylinders of this type still have the following problems in actual operation:

[0003] (1) The ionic liquid in the compression chamber only covers the top of the piston. Due to the unstable working environment of the ionic liquid cylinder, vibration or shaking is inevitable, causing the ionic liquid on the top of the piston to shake. It is impossible to ensure that the ionic liquid is always sealed between the piston and the cylinder liner. The position without ionic liquid sealing will fail to seal, and the failure of the seal will cause gas to leak from between the piston and the cylinder liner.

[0004] (2) Some ionic liquid will adhere to the inner wall of the cylinder liner and leak as the piston reciprocates;

[0005] (3) When the piston moves upward, due to the high gas pressure in the compression chamber, part of the ionic liquid in the compression chamber will impact the intake check valve and the exhaust check valve along with the gas. The impact force of the liquid on the gas valve is much greater than that of the gas. When working for a long time, the intake check valve and the exhaust check valve will be damaged, affecting the service life of the intake check valve and the exhaust check valve. At the same time, the ionic liquid will be discharged outward along with the gas. Although an ionic liquid recovery device will be set up outside, the excessive discharge of ionic liquid will not only increase the difficulty of recovery, but also inevitably cause waste of ionic liquid, increasing costs.

[0006] (4) When the ionic liquid leaks out from between the piston and the cylinder liner, the lack of ionic liquid in the compression chamber will lead to a series of problems such as dry grinding between the piston and the cylinder liner, increased gas temperature, and reduced gas pressure. It is necessary to detect and replenish new ionic liquid in time;

[0007] (5) Some piston drive systems use a crankshaft connecting rod structure, which has poor stability and affects the operating accuracy of the piston;

[0008] (6) If a liquid drive structure is used to drive the piston, the oil piston in the liquid drive structure is likely to collide with the oil cylinder during the reciprocating motion, which may affect the service life of the oil piston and the oil cylinder over time.

[0009] In summary, the above-mentioned problems in ion liquid seal compression cylinders have become technical difficulties that need to be solved urgently in the industry. Summary of the invention:

[0010] In order to make up for the deficiencies of the prior art, the present invention provides a liquid-driven vertical ion liquid seal compression cylinder assembly, which solves the problem of sealing failure caused by shaking in the previous ion liquid cylinder, solves the problem of partial ion liquid adhering to the inner wall of the cylinder liner and leaking in the previous ion liquid cylinder, solves the problem that ion liquid will impact the intake check valve and exhaust check valve with high-pressure gas, affecting the service life of the intake check valve and exhaust check valve, solves the problem of dry grinding between the piston and the cylinder liner, increased gas temperature, and reduced gas pressure caused by the lack of ion liquid, solves the problem of poor stability of the piston drive structure and affecting the piston operation accuracy, and solves the problem that the oil piston is prone to collision with the oil cylinder during reciprocating motion, affecting its service life.

[0011] The technical solution adopted by the present invention to solve the above technical problems is:

[0012] A liquid-driven vertical ion liquid-sealed compression cylinder assembly comprises a cylinder liner, a cylinder head is provided on the top of the cylinder liner, an intake check valve and an exhaust check valve are provided in the cylinder head, a gas piston is movably provided in the cylinder liner, a gas compression chamber is formed between the gas piston and the cylinder head, the top of the gas piston is covered with ionic liquid, an ionic liquid storage chamber is provided between the side wall of the gas piston and the side wall of the cylinder liner, the ionic liquid storage chamber is connected to the ionic liquid at the top of the gas piston through an ionic liquid channel in the gas piston, the ionic liquid is used to cool, lubricate and seal the gas piston and the cylinder liner, a scraper assembly is installed on the side wall of the gas piston on the upper side of the ionic liquid storage chamber, a liquid impact prevention structure is installed in the cylinder head, an ionic liquid leakage detection structure is installed on one side of the bottom of the cylinder liner, a hydraulic drive device is installed at the bottom of the cylinder liner, and a liquid drive buffer structure is provided in the hydraulic drive device.

[0013] The scraper assembly includes a scraper plate, which is used to scrape the ionic liquid attached to the inner wall of the cylinder liner into the ionic liquid storage chamber. The top of the scraper plate is pressed and fixed by a fixing ring, and the fixing ring is fixedly connected to the top of the gas piston by several screws. The edge of the scraper plate is in sliding contact with the inner wall of the cylinder liner.

[0014] The scraping assembly includes a double guide ring structure, which is used to guide the reciprocating motion of the gas piston and scrape the ionic liquid attached to the inner wall of the cylinder liner into the ionic liquid storage chamber. The double guide ring structure includes two guide rings installed on the side wall of the gas piston, and the outer side of the guide ring is in sliding contact with the inner wall of the cylinder liner.

[0015] The cylinder head includes a cylinder head body, in which an intake channel and an exhaust channel are provided, an intake check valve is provided in the intake channel, an exhaust check valve is provided in the exhaust channel, a connecting channel is provided between the intake channel and the exhaust channel, the connecting channel connects the intake channel, the exhaust channel and the gas compression chamber in the cylinder, an anti-liquid shock structure is installed in the connecting channel, the anti-liquid shock structure includes an anti-liquid shock valve, and a labyrinth-type channel is provided in the anti-liquid shock valve; a liquid adding channel is also provided in the cylinder head body, the liquid adding channel is connected to the connecting channel, and a liquid adding joint and a switch valve are installed on the outside of the liquid adding channel.

[0016] The anti-liquid shock valve includes a first valve plate, a second valve plate and a third valve plate stacked in sequence from bottom to top, a vent plate is provided between the first valve plate and the second valve plate, and between the second valve plate and the third valve plate, respectively, and a plurality of arcuate grooves are provided on the first valve plate, the second valve plate and the third valve plate respectively along the circumference, the arcuate grooves on the first valve plate and the third valve plate are at the same position, the arcuate grooves on the second valve plate and the first valve plate and the third valve plate are at staggered positions, and the vent plate is provided with hollow holes at positions corresponding to the arcuate grooves.

[0017] The bolts pass through the center holes of the first valve plate, the vent plate, the second valve plate, the vent plate, and the third valve plate in sequence and are fixedly connected to the cylinder head. A gasket is provided between the third valve plate and the cylinder head. Positioning holes are provided at corresponding positions on the first valve plate, the vent plate, the second valve plate, the vent plate, and the third valve plate, and positioning pins are inserted into the positioning holes.

[0018] The ionic liquid leakage detection structure includes an ionic liquid discharge channel arranged in the side wall of the cylinder liner bottom, the ionic liquid discharge channel is connected to a detection container arranged outside the cylinder liner, and a leakage detection sensor is provided at the bottom of the detection container. The leakage detection sensor includes a proximity sensor or a liquid level sensor.

[0019] The hydraulic drive device includes an oil cylinder installed at the bottom of the cylinder liner, an oil piston is movably provided in the oil cylinder, a plurality of sealing rings and guide rings are provided between the oil piston and the oil cylinder, the oil piston is connected to the gas piston through a piston rod, the piston rod and the bottom of the cylinder liner are sealed by a sealing sleeve, a sealing ring and a guide ring are provided between the sealing sleeve and the piston rod, a plurality of sealing rings are provided between the sealing sleeve and the bottom of the cylinder liner for sealing, and hydraulic oil inlets and outlets are provided at the top and bottom of the side wall of the oil cylinder.

[0020] The liquid-driven buffer structure includes a connecting hole that passes through the oil piston from top to bottom, with necking at both ends of the connecting hole. A shape-matching buffer rod is movably provided in the connecting hole, and a gap is provided between the outer wall of the buffer rod and the inner wall of the connecting hole. The shapes of the two ends of the buffer rod match the shapes of the necking at both ends of the connecting hole to seal the necking. The side wall of the buffer rod is provided with a flat surface, and a gap is formed between the flat surface and the inner wall of the connecting hole.

[0021] A plurality of sealing rings and guide rings are provided between the gas piston and the cylinder sleeve at the lower side of the ionic liquid storage chamber.

[0022] The present invention adopts the above solution and has the following advantages:

[0023] (1) An ionic liquid storage chamber is provided between the side wall of the gas piston and the side wall of the cylinder liner. The ionic liquid storage chamber is connected to the ionic liquid on the top of the gas piston through the ionic liquid channel in the gas piston, forming a double sealing structure. Even if the ionic liquid on the top of the gas piston cannot always be sealed between the gas piston and the cylinder liner due to shaking, the ionic liquid in the ionic liquid storage chamber can always be sealed between the gas piston and the cylinder liner, ensuring the sealing effect, avoiding the occurrence of sealing failure, and effectively preventing gas leakage from between the gas piston and the cylinder liner.

[0024] (2) The scraper plate or double guide ring structure on the upper side of the ionic liquid storage chamber can scrape the ionic liquid attached to the inner wall of the cylinder liner into the ionic liquid storage chamber to prevent the ionic liquid attached to the inner wall of the cylinder liner from leaking with the reciprocating motion of the gas piston.

[0025] (3) By installing a liquid impact prevention valve in the cylinder head, a labyrinth-type connecting channel is provided in the liquid impact prevention valve, which can form a barrier to the ionic liquid, prevent the ionic liquid from directly entering and exiting, and weaken the impact force of the ionic liquid, thereby reducing the impact of the ionic liquid on the intake check valve and the exhaust check valve, ensuring the service life of the intake check valve and the exhaust check valve; at the same time, it can prevent excessive ionic liquid from being discharged outward after being impacted, reduce the amount of ionic liquid discharged with the gas, reduce the difficulty of recovery, avoid waste of ionic liquid, and reduce costs.

[0026] (4) When the ionic liquid above leaks from between the gas piston and the cylinder liner to the bottom of the cylinder liner cavity, the leaked ionic liquid can enter the detection container through the ionic liquid discharge channel. The leakage detection sensor will detect the leakage signal of the ionic liquid and feed it back to the controller. The staff can stop the machine for maintenance in time to ensure the safety of the equipment.

[0027] (5) The hydraulic oil enters and exits the oil cylinder through the hydraulic oil inlet and outlet, driving the oil piston to move up and down. The oil piston drives the gas piston to reciprocate in the cylinder sleeve through the piston rod, realizing the hydraulic drive of the gas piston, with good stability and ensuring the operating accuracy of the gas piston.

[0028] (6) The buffer rod movably installed in the connecting hole of the oil piston can open the connecting hole when the oil piston moves to the bottom dead center or the top dead center of the oil cylinder, so that the hydraulic oil enters the space between the oil piston and the bottom or top of the oil cylinder in advance to play a buffering role, avoiding a hard collision between the oil piston and the bottom or top of the oil cylinder, protecting the oil piston and the oil cylinder, and extending the service life. Description of the drawings:

[0029] Figure 1 This is a structural diagram of Example 1 of the present invention.

[0030] Figure 2 for Figure 1 Schematic diagram of the structure of the gas piston.

[0031] Figure 3 This is a structural diagram of Example 2 of the present invention.

[0032] Figure 4 Schematic diagram of the structure of the buffer rod of the present invention.

[0033] Figure 5 It is a schematic cross-sectional structure diagram of the cylinder head of the present invention.

[0034] Figure 6 It is a schematic diagram of the longitudinal cross-section structure of the cylinder head of the present invention.

[0035] Figure 7 It is a schematic diagram of the three-dimensional structure of the anti-liquid shock valve of the present invention.

[0036] Figure 8 It is a schematic cross-sectional structural diagram of the anti-liquid shock valve of the present invention.

[0037] Figure 9 It is a schematic diagram of the explosion structure of the anti-liquid shock valve of the present invention.

[0038] In the figure, 1, cylinder liner, 2, cylinder head, 3, intake check valve, 4, exhaust check valve, 5, gas piston, 6, ionic liquid, 7, ionic liquid storage chamber, 8, ionic liquid channel, 9, scraper, 10, fixing ring, 11, double guide ring structure, 12, cylinder head body, 13, intake channel, 14, exhaust channel, 15, connecting channel, 16, anti-liquid impact valve, 17, labyrinth channel, 18, liquid addition channel, 19, liquid addition joint, 20, switch valve, 21 , first valve plate, 22, second valve plate, 23, third valve plate, 24, ventilation plate, 25, arc groove, 26, hollow hole, 27, bolt, 28, gasket, 29, positioning hole, 30, ionic liquid discharge channel, 31, detection container, 32, leakage detection sensor, 33, oil cylinder, 34, oil piston, 35, piston rod, 36, sealing sleeve, 37, hydraulic oil inlet and outlet, 38, buffer rod, 39, plane, 40, sealing ring, 41, guide ring. Specific implementation method:

[0039] In order to clearly illustrate the technical features of this solution, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0040] Example 1:

[0041] like Figure 1 、 2As shown in Figures 4-9, a liquid-driven vertical ion liquid-sealed compression cylinder assembly comprises a cylinder liner 1, a cylinder head 2 is provided on the top of the cylinder liner 1, an intake check valve 3 and an exhaust check valve 4 are provided in the cylinder head 2, a gas piston 5 is movably provided in the cylinder liner 1, a gas compression chamber is formed between the gas piston 5 and the cylinder head 2, the top of the gas piston 5 is covered with an ionic liquid 6, an ionic liquid storage chamber 7 is provided between the side wall of the gas piston 5 and the side wall of the cylinder liner 1, the ionic liquid storage chamber 7 is connected to the ionic liquid 6 on the top of the gas piston 5 through the ionic liquid channel 8 in the gas piston 5, the ionic liquid is used to cool, lubricate and seal the gas piston 5 and the cylinder liner 1, a scraper assembly is installed on the side wall of the gas piston 5 on the upper side of the ionic liquid storage chamber 7, a liquid impact prevention structure is installed in the cylinder head 2, an ionic liquid leakage detection structure is installed on one side of the bottom of the cylinder liner 1, a hydraulic drive device is installed at the bottom of the cylinder liner 1, and a liquid-driven buffer structure is provided in the hydraulic drive device.

[0042] The scraping assembly includes a scraping plate 9, which is used to scrape the ionic liquid attached to the inner wall of the cylinder liner 1 into the ionic liquid storage chamber 7. The top of the scraping plate 9 is pressed and fixed by a fixing ring 10 for easy installation. The fixing ring 10 is fixedly connected to the top of the gas piston 5 by several screws. The edge of the scraping plate 9 is in sliding contact with the inner wall of the cylinder liner 1, which is conducive to scraping off the ionic liquid attached to the inner wall of the cylinder liner 1.

[0043] The cylinder head 2 includes a cylinder head body 12, which is provided with an intake channel 13 and an exhaust channel 14. The intake channel 13 is provided with an intake check valve 3, and the exhaust channel 14 is provided with an exhaust check valve 4. A connecting channel 15 is provided between the intake and exhaust channels 13 and 14, connecting the intake and exhaust channels 13 and 14 with the gas compression chamber within the cylinder. A liquid-surge prevention structure is installed within the connecting channel 15, including a liquid-surge prevention valve 16, which has a labyrinthine passage 17 within it. The cylinder head body 12 also includes a liquid-adding channel 18, which is connected to the connecting channel 15. A liquid-adding connector 19 and an on / off valve 20 are installed on the outer side of the liquid-adding connector 19 and the on / off valve 20 on the cylinder head body 12, allowing external ionic liquid to be added to the cylinder via the liquid-adding channel 18, the connecting channel 15, and the labyrinthine passage 17 within the liquid-surge prevention valve 16 to replenish the ionic liquid.

[0044] The anti-liquid hammer valve 16 includes a first valve plate 21, a second valve plate 22, and a third valve plate 23 stacked in sequence from bottom to top. A vent plate 24 is provided between the first valve plate 21 and the second valve plate 22, and between the second valve plate 22 and the third valve plate 23, respectively. The first valve plate 21, the second valve plate 22, and the third valve plate 23 are respectively provided with a plurality of arcuate grooves 25 along the circumference. The arcuate grooves 25 on the first valve plate 21 and the third valve plate 23 are positioned at the same position, and the arcuate grooves 25 on the second valve plate 22 are staggered with those on the first valve plate 21 and the third valve plate 23. Holes 26 are provided on the vent plate 24 at positions corresponding to the arcuate grooves 25. When the arcuate grooves 25 and the hollow holes 26 cooperate, a labyrinthine passage 17 can be formed.

[0045] Bolts 27 pass through the center holes of the first valve plate 21, the vent plate 24, the second valve plate 22, the vent plate 24, and the third valve plate 23 in sequence and are fixedly connected to the cylinder head. A gasket 28 is provided between the third valve plate 23 and the cylinder head to form a gap between the third valve plate 23 and the cylinder head to avoid blocking the channel. Positioning holes 29 are provided at corresponding positions on the first valve plate 21, the vent plate 24, the second valve plate 22, the vent plate 24, and the third valve plate 23. Positioning pins are inserted in the positioning holes 29 to play a positioning role during installation, avoid installation errors, and improve installation efficiency.

[0046] The ionic liquid leakage detection structure includes an ionic liquid discharge channel 30 provided in the bottom side wall of the cylinder liner 1. The ionic liquid discharge channel 30 is connected to a detection container 31 provided on the outside of the cylinder liner 1. A leakage detection sensor 32 is provided at the bottom of the detection container 31. The leakage detection sensor 32 includes a proximity sensor or a liquid level sensor.

[0047] The hydraulic drive device includes an oil cylinder 33 installed at the bottom of the cylinder liner 1, and an oil piston 34 is movably provided in the oil cylinder 33. Several sealing rings and guide rings are provided between the oil piston 34 and the oil cylinder 33. The oil piston 34 is connected to the gas piston 5 through a piston rod 35. The piston rod 35 and the bottom of the cylinder liner 1 are sealed by a sealing sleeve 36. A sealing ring and a guide ring are provided between the sealing sleeve 36 and the piston rod 35. Several sealing rings are provided between the sealing sleeve 36 and the bottom of the cylinder liner 1 for sealing. Hydraulic oil inlet and outlet 37 are provided at the top and bottom of the side wall of the oil cylinder 33.

[0048] The hydraulic drive buffer structure includes a connecting hole extending vertically through the oil piston 34, with tapered ends. A shape-matching buffer rod 38 is movably positioned within the connecting hole, with a gap formed between the outer wall of the buffer rod 38 and the inner wall of the connecting hole. The ends of the buffer rod 38 match the tapered ends of the connecting hole to seal the tapered ends. The sidewalls of the buffer rod 38 are provided with flat surfaces 39, which form a gap with the inner wall of the connecting hole. To facilitate installation of the buffer rod 38, the oil piston 34 is assembled from two parts. A bottom cover is provided at the bottom of the oil piston 34. After the buffer rod 38 is installed in the connecting hole, the bottom cover is bolted to the oil piston 34.

[0049] A plurality of sealing rings 40 and guide rings 41 are provided between the gas piston 5 and the cylinder sleeve 1 at the lower side of the ionic liquid storage chamber 7 to play a sealing and guiding role.

[0050] Example 2:

[0051] like Figure 3 As shown, the difference between this embodiment and embodiment 1 is:

[0052] The scraping assembly includes a double guide ring structure 11, which is used to guide the reciprocating motion of the gas piston 5 and scrape the ionic liquid attached to the inner wall of the cylinder liner 1 into the ionic liquid storage chamber 7. The double guide ring structure 11 includes two guide rings installed on the side wall of the gas piston 5. The outer side of the guide ring is in sliding contact with the inner wall of the cylinder liner 1. In addition to guiding the reciprocating motion of the gas piston 5, it is also beneficial to scrape off the ionic liquid attached to the inner wall of the cylinder liner 1.

[0053] Working principle:

[0054] During operation, the hydraulic oil enters and exits the oil cylinder 33 through the hydraulic oil inlet and outlet 37, which can drive the oil piston 34 to move up and down. When the oil piston 34 moves to the bottom dead center, the buffer rod 38 first contacts the bottom of the oil cylinder 33, the buffer rod 38 is pushed upward, and the connecting hole is opened. At this time, the hydraulic oil above the oil piston 34 will enter between the oil piston 34 and the bottom of the oil cylinder 33 through the connecting hole, playing a buffering role, avoiding a hard collision between the oil piston 34 and the bottom of the oil cylinder 33; similarly, when the oil piston 34 moves to the top dead center, the buffer rod 38 first contacts the top of the oil cylinder 33, the buffer rod 38 is pushed downward, and the connecting hole is opened. At this time, the hydraulic oil below the oil piston 34 will enter between the oil piston 34 and the top of the oil cylinder 33 through the connecting hole, playing a buffering role, avoiding a hard collision between the oil piston 34 and the top of the oil cylinder 33.

[0055] The oil piston 34, via the piston rod 35, drives the gas piston 5 to reciprocate within the cylinder liner 1. When the gas piston 5 moves downward, gas enters the gas compression chamber through the intake check valve 3. When the gas piston 5 moves upward, the gas in the gas compression chamber is compressed and pressurized, and then discharged outward through the exhaust check valve 4, thereby increasing the gas pressure. After being impacted by the high-pressure gas, the ionic liquid 6 in the gas compression chamber must pass through the labyrinthine communication channel 17 within the anti-liquid impact valve 16 before entering the intake check valve 3 and the exhaust check valve 4. The ionic liquid is blocked within the labyrinthine communication channel 17, acting as a decelerator and weakening the impact force, thereby reducing the impact of the ionic liquid on the intake check valve 3 and the exhaust check valve 4, ensuring the service life of the intake check valve 3 and the exhaust check valve 4. At the same time, it prevents excessive ionic liquid from being directly discharged outward after being impacted, reducing the amount of ionic liquid discharged with the gas and avoiding waste of ionic liquid.

[0056] During the pressurization process, the gas in the gas compression chamber is sealed between the gas piston 5 and the cylinder liner 1 by multiple sealing rings 40. On the one hand, the top of the gas piston 5 is covered with ionic liquid 6, and on the other hand, ionic liquid 6 is also stored in the ionic liquid storage chamber 7, forming a double sealing structure. Even if the ionic liquid on the top of the gas piston 5 cannot always be sealed between the gas piston 5 and the cylinder liner 1 due to shaking, the ionic liquid in the ionic liquid storage chamber 7 can always be sealed between the gas piston 5 and the cylinder liner 1. The cooperation between the two can ensure the sealing effect, avoid the situation of sealing failure, effectively prevent gas leakage from between the gas piston 5 and the cylinder liner 1, and improve the compression of the cylinder. Efficiency; at the same time, the scraper plate 9 or the double guide ring structure 11 on the upper side of the ionic liquid storage chamber 7 can scrape the ionic liquid attached to the inner wall of the cylinder liner 1 into the ionic liquid storage chamber 7, so as to prevent the ionic liquid attached to the inner wall of the cylinder liner 1 from leaking with the reciprocating motion of the gas piston 5; in addition, when the ionic liquid above the gas piston 5 leaks from between the gas piston 5 and the cylinder liner 1 to the bottom of the inner cavity of the cylinder liner 1, the leaked ionic liquid can enter the detection container 31 through the ionic liquid discharge channel 30, and the leakage detection sensor 32 at the bottom of the detection container 31 will detect the leakage signal of the ionic liquid and feed it back to the controller. The controller will send an alarm signal, and the staff can stop the machine for maintenance in time to ensure the safety of the equipment.

[0057] The above specific implementation manner cannot be used as a limitation on the protection scope of the present invention. For those skilled in the art, any replacement, improvement or transformation made to the implementation manner of the present invention falls within the protection scope of the present invention.

[0058] Any matters not described in detail in the present invention are well-known technologies to those skilled in the art.

Claims

1. A liquid-driven vertical ion liquid-sealed compression cylinder assembly, characterized by: The invention comprises a cylinder liner, wherein a cylinder head is provided on the top of the cylinder liner, an intake check valve and an exhaust check valve are provided in the cylinder head, a gas piston is movably provided in the cylinder liner, a gas compression chamber is formed between the gas piston and the cylinder head, an ionic liquid is covered on the top of the gas piston, an ionic liquid storage chamber is provided between the side wall of the gas piston and the side wall of the cylinder liner, the ionic liquid storage chamber is connected with the ionic liquid on the top of the gas piston through an ionic liquid channel in the gas piston, the ionic liquid is used to cool, lubricate and seal the gas piston and the cylinder liner, a scraper assembly is installed on the side wall of the gas piston on the upper side of the ionic liquid storage chamber, a liquid impact prevention structure is installed in the cylinder head, an ionic liquid leakage detection structure is installed on one side of the bottom of the cylinder liner, a hydraulic drive device is installed at the bottom of the cylinder liner, and a liquid drive buffer structure is provided in the hydraulic drive device; The cylinder head includes a cylinder head body, in which an intake channel and an exhaust channel are provided, an intake check valve is provided in the intake channel, an exhaust check valve is provided in the exhaust channel, and a connecting channel is provided between the intake channel and the exhaust channel, which connects the intake channel and the exhaust channel with the gas compression chamber in the cylinder, and an anti-liquid shock structure is installed in the connecting channel, the anti-liquid shock structure includes an anti-liquid shock valve, and a labyrinth-type channel is provided in the anti-liquid shock valve; a liquid adding channel is also provided in the cylinder head body, the liquid adding channel is connected to the connecting channel, and a liquid adding joint and a switch valve are installed on the outside of the liquid adding channel; The anti-liquid shock valve includes a first valve plate, a second valve plate, and a third valve plate stacked in sequence from bottom to top, a vent plate is provided between the first valve plate and the second valve plate, and between the second valve plate and the third valve plate, respectively, and a plurality of arcuate grooves are provided on the first valve plate, the second valve plate, and the third valve plate respectively along the circumference, the arcuate grooves on the first valve plate and the third valve plate are in the same position, the arcuate grooves on the second valve plate are staggered with those on the first valve plate and the third valve plate, and the vent plate is provided with a hollow hole at a position corresponding to the arcuate groove; The bolts pass through the center holes of the first valve plate, the vent plate, the second valve plate, the vent plate, and the third valve plate in sequence and are fixedly connected to the cylinder head. A gasket is provided between the third valve plate and the cylinder head. Positioning holes are provided at corresponding positions on the first valve plate, the vent plate, the second valve plate, the vent plate, and the third valve plate, and positioning pins are inserted into the positioning holes.

2. The liquid-driven vertical ion liquid-sealed compression cylinder assembly according to claim 1, characterized in that: The scraper assembly includes a scraper plate, which is used to scrape the ionic liquid attached to the inner wall of the cylinder liner into the ionic liquid storage chamber. The top of the scraper plate is pressed and fixed by a fixing ring, and the fixing ring is fixedly connected to the top of the gas piston by several screws. The edge of the scraper plate is in sliding contact with the inner wall of the cylinder liner.

3. The liquid-driven vertical ion liquid-sealed compression cylinder assembly according to claim 1, characterized in that: The scraping assembly includes a double guide ring structure, which is used to guide the reciprocating motion of the gas piston and scrape the ionic liquid attached to the inner wall of the cylinder liner into the ionic liquid storage chamber. The double guide ring structure includes two guide rings installed on the side wall of the gas piston, and the outer side of the guide ring is in sliding contact with the inner wall of the cylinder liner.

4. The liquid-driven vertical ion liquid-sealed compression cylinder assembly according to claim 1, characterized in that: The ionic liquid leakage detection structure includes an ionic liquid discharge channel arranged in the side wall of the cylinder liner bottom, the ionic liquid discharge channel is connected to a detection container arranged outside the cylinder liner, and a leakage detection sensor is provided at the bottom of the detection container. The leakage detection sensor includes a proximity sensor or a liquid level sensor.

5. The liquid-driven vertical ion liquid-sealed compression cylinder assembly according to claim 1, characterized in that: The hydraulic drive device includes an oil cylinder installed at the bottom of the cylinder liner, an oil piston is movably provided in the oil cylinder, a plurality of sealing rings and guide rings are provided between the oil piston and the oil cylinder, the oil piston is connected to the gas piston through a piston rod, the piston rod and the bottom of the cylinder liner are sealed by a sealing sleeve, a sealing ring and a guide ring are provided between the sealing sleeve and the piston rod, a plurality of sealing rings are provided between the sealing sleeve and the bottom of the cylinder liner for sealing, and hydraulic oil inlets and outlets are provided at the top and bottom of the side wall of the oil cylinder.

6. The liquid-driven vertical ion liquid-sealed compression cylinder assembly according to claim 5, characterized in that: The liquid-driven buffer structure includes a communicating hole that passes through the oil piston from top to bottom, with necking at both ends of the communicating hole. A shape-matching buffer rod is movably provided in the communicating hole, and a gap is provided between the outer wall of the buffer rod and the inner wall of the communicating hole. The shapes of the two ends of the buffer rod match the shapes of the necking at both ends of the communicating hole to seal the necking, and a plane is provided on the side wall of the buffer rod, which forms a gap with the inner wall of the communicating hole.

7. The liquid-driven vertical ion liquid-sealed compression cylinder assembly according to claim 1, characterized in that: A plurality of sealing rings and guide rings are provided between the gas piston and the cylinder sleeve at the lower side of the ionic liquid storage chamber.

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