Liquid-driven vertical ionic liquid seal compression cylinder assembly

Abstract

The invention relates to the technical field of ionic liquid cylinders, in particular to a liquid-driven vertical ionic liquid seal compression cylinder assembly. Comprising a cylinder sleeve, a cylinder head is arranged at the top of the cylinder sleeve, an air inlet one-way valve and an exhaust one-way valve are arranged in the cylinder head, an air piston is movably arranged in the cylinder sleeve, an ionic liquid storage cavity is formed between the side wall of the air piston and the side wall of the cylinder sleeve, and a liquid scraping assembly is installed on the side wall, on the upper side of the ionic liquid storage cavity, of the air piston; an ionic liquid leakage detection structure is installed on one side of the bottom of the cylinder sleeve, a hydraulic drive device is installed at the bottom of the cylinder sleeve, and a hydraulic drive buffering structure is arranged in the hydraulic drive device. A double-sealing structure is formed, and gas is prevented from leaking between the gas piston and the cylinder sleeve; hydraulic driving of the air piston is achieved, the stability is good, the buffer rod can open the communicating hole, hydraulic oil enters in advance to achieve the buffering effect, and the oil piston and the oil cylinder are protected; and the leakage detection structure can detect a leakage signal of the ionic liquid, so that the equipment safety is ensured.

Description

Technical field:

[0001] The 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] At present, ion liquid sealed compression cylinder is a new type of equipment for pressurizing gas. Its structure is disclosed in the patent application with publication number CN116044712A, which discloses an ion liquid compressor. By injecting ion liquid into the compression chamber of the cylinder, the piston is cooled and lubricated and the sealing effect between the piston and the cylinder is improved. However, the existing ion liquid cylinder of this type still has the following problems in actual working process:

[0003] (1) The ionic liquid in the compression chamber only covers the top of the piston. Since the working environment of the ionic liquid cylinder is unstable, vibration or shaking will inevitably occur, causing the ionic liquid on the top of the piston to shake, and 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) After 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 forms use a crankshaft connecting rod structure, which has poor stability and will affect 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 prone to collide with the oil cylinder during the reciprocating motion, which can easily affect the service life of the oil piston and the oil cylinder over time.

[0009] In summary, the above-mentioned problems in ion liquid sealed compression cylinders have become technical problems 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 sealed compression cylinder assembly, which solves the problem of sealing failure caused by shaking in the previous ion liquid cylinder, solves the problem that part of the ion liquid in the previous ion liquid cylinder adheres to the inner wall of the cylinder liner and leaks, solves the problem that the ion liquid will impact the intake check valve and the exhaust check valve with the high-pressure gas and affect the service life of the intake check valve and the 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 that the driving structure of the piston is poor in stability and affects the operation accuracy of the piston, and solves the problem that the oil piston is prone to collide with the oil cylinder during reciprocating motion and affects the 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 sleeve, a cylinder head is provided on the top of the cylinder sleeve, an intake check valve and an exhaust check valve are provided in the cylinder head, a gas piston is movably provided in the cylinder sleeve, 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 sleeve, 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 for cooling, lubricating and sealing the gas piston and the cylinder sleeve, 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 sleeve, a hydraulic drive device is installed at the bottom of the cylinder sleeve, and a liquid-driven 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 sleeve 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 a plurality of screws. The edge of the scraper plate is in sliding contact with the inner wall of the cylinder sleeve.

[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 sleeve 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 sleeve.

[0015] The cylinder head includes a cylinder head body, in which an intake channel and an exhaust channel are arranged, in which an intake check valve is arranged, in which an exhaust check valve is arranged, and between which a connecting channel is arranged, which connects the intake channel, the exhaust channel and the gas compression chamber in the cylinder, in which a liquid-proof structure is installed, the liquid-proof structure includes a liquid-proof valve, in which a labyrinth-type channel is arranged; a liquid-adding channel is also arranged 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 impact valve comprises a first valve plate, a second valve plate and a third valve plate stacked in sequence from bottom to top, a ventilation plate is respectively arranged between the first valve plate and the second valve plate, and between the second valve plate and the third valve plate, a plurality of arc grooves are respectively arranged along the circumference of the first valve plate, the second valve plate and the third valve plate, the arc grooves on the first valve plate and the third valve plate are at the same position, the arc grooves on the second valve plate, the first valve plate and the third valve plate are at staggered positions, and a hollow hole is arranged at a position corresponding to the arc groove on the ventilation plate.

[0017] The bolts pass through the center holes of the first valve plate, the ventilation plate, the second valve plate, the ventilation 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 ventilation plate, the second valve plate, the ventilation 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 sleeve, an oil piston is movably arranged in the oil cylinder, a plurality of sealing rings and guide rings are arranged 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 sleeve are sealed by a sealing sleeve, a sealing ring and a guide ring are arranged between the sealing sleeve and the piston rod, a plurality of sealing rings are arranged between the sealing sleeve and the bottom of the cylinder sleeve for sealing, and hydraulic oil inlets and outlets are arranged 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 both ends of the connecting hole being configured with constrictions, a buffer rod with a matching shape being movably provided in the connecting hole, and a gap being provided between the outer wall of the buffer rod and the inner wall of the connecting hole; the shapes of both ends of the buffer rod are matched with the shapes of the constrictions at both ends of the connecting hole to seal the constrictions, and a plane is provided on the side wall of the buffer rod, and a gap is formed between the plane and the inner wall of the connecting hole.

[0021] A plurality of sealing rings and guide rings are arranged 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 scheme 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 with the ionic liquid at the top of the gas piston through the ionic liquid channel in the gas piston, thereby forming a double sealing structure. Even if the ionic liquid at the top of the gas piston cannot 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, thereby 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 due to 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, thereby 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, which has good stability and ensures 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 lower dead center or the upper dead center of the oil cylinder, so that the hydraulic oil can enter the space between the oil piston and the bottom or the top of the oil cylinder in advance to play a buffering role, thereby avoiding a hard collision between the oil piston and the bottom or the top of the oil cylinder, protecting the oil piston and the oil cylinder and extending their service life. Description of the drawings:

[0029] Figure 1 This is a schematic diagram of the structure 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 schematic diagram of the structure of Example 2 of the present invention.

[0032] Figure 4 It is a schematic structural diagram of the buffer rod of the present invention.

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

[0034] Figure 6 It is a schematic diagram of the longitudinal 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 impact valve of the present invention.

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

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

[0038] In the figure, 1, cylinder sleeve, 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 plate, 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 adding channel, 19, liquid adding 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, ion 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 the present solution, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0040] Embodiment 1:

[0041] like Figure 1 , 2As shown in 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, an ionic liquid 6 is covered on the top of the gas piston 5, 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 with the ionic liquid 6 on the top of the gas piston 5 through an ionic liquid channel 8 in the gas piston 5, the ionic liquid is used for cooling, lubricating and sealing 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 scraper assembly includes a scraper 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 scraper 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 a plurality of screws. The edge of the scraper 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, in which an intake channel 13 and an exhaust channel 14 are arranged, in which an intake check valve 3 is arranged, in which an exhaust check valve 4 is arranged, and between which a connecting channel 15 is arranged, which connects the intake channel 13 and the exhaust channel 14 with the gas compression chamber in the cylinder, and in which a liquid-proof structure is installed, which includes a liquid-proof valve 16, in which a labyrinth-type channel 17 is arranged; a liquid-adding channel 18 is also arranged in the cylinder head body 12, in which the liquid-adding channel 18 is connected with the connecting channel 15, and a liquid-adding joint 19 and a switch valve 20 are arranged outside the liquid-adding channel 18. Through the liquid-adding joint 19 and the switch valve 20 on the cylinder head body 12, the external ionic liquid can be added into the cylinder through the liquid-adding channel 18, the connecting channel 15, and the labyrinth-type channel 17 in the liquid-proof valve 16 to replenish the ionic liquid.

[0044] The anti-liquid impact valve 16 comprises a first valve plate 21, a second valve plate 22 and a third valve plate 23 which are stacked in sequence from bottom to top, a ventilation plate 24 is respectively arranged 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, a plurality of arc grooves 25 are respectively arranged on the first valve plate 21, the second valve plate 22 and the third valve plate 23 along the circumference, the arc grooves 25 on the first valve plate 21 and the third valve plate 23 are at the same position, the arc grooves 25 on the second valve plate 22 and the first valve plate 21 and the third valve plate 23 are at staggered positions, a hollow hole 26 is arranged on the ventilation plate 24 at a position corresponding to the arc groove 25, and the arc groove 25 cooperates with the hollow hole 26 to form a labyrinth passage 17.

[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 into 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 arranged in the bottom side wall of the cylinder liner 1, the ionic liquid discharge channel 30 is connected to a detection container 31 arranged outside the cylinder liner 1, and 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 sleeve 1, an oil piston 34 is movably arranged in the oil cylinder 33, a plurality of sealing rings and guide rings are arranged 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 sleeve 1 are sealed by a sealing sleeve 36, a sealing ring and a guide ring are arranged between the sealing sleeve 36 and the piston rod 35, a plurality of sealing rings are arranged between the sealing sleeve 36 and the bottom of the cylinder sleeve 1 for sealing, and hydraulic oil inlets and outlets 37 are arranged at the top and bottom of the side wall of the oil cylinder 33.

[0048] The liquid drive buffer structure includes a communication hole that runs through the oil piston 34 from top to bottom, with the two ends of the communication hole being set with a constriction, and a shape-matching buffer rod 38 being movably arranged in the communication hole, and a gap is arranged between the outer wall of the buffer rod 38 and the inner wall of the communication hole; the shapes of the two ends of the buffer rod 38 match the shapes of the constrictions at the two ends of the communication hole to seal the constriction, and the side wall of the buffer rod 38 is provided with a plane 39, and the plane 39 forms a gap with the inner wall of the communication hole. In order to facilitate the installation of the buffer rod 38, the oil piston 34 is assembled from two parts, and a bottom cover is arranged at the bottom of the oil piston 34. After the buffer rod 38 is installed in the communication hole, the bottom cover and the oil piston 34 are fixedly connected by bolts.

[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] Embodiment 2:

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

[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 lower 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 to avoid 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 upper 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 to avoid a hard collision between the oil piston 34 and the top of the oil cylinder 33.

[0055] The oil piston 34 drives the gas piston 5 to reciprocate in the cylinder sleeve 1 through the piston rod 35. When the gas piston 5 moves downward, the 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 achieving gas pressurization. After the ion liquid 6 in the gas compression chamber is impacted by the high-pressure gas, it needs to pass through the labyrinth-type connecting channel 17 in the anti-liquid impact valve 16 to enter the intake check valve 3 and the exhaust check valve 4. The ion liquid is blocked in the labyrinth-type connecting channel 17, which plays a deceleration role and weakens the impact force, thereby reducing the impact of the ion 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 can prevent excessive ion liquid from being directly discharged outward after being impacted, reduce the amount of ion liquid discharged with the gas, and avoid waste of ion liquid.

[0056] During the pressurization process of the gas in the gas compression chamber, in addition to the multiple sealing rings 40 for sealing between the gas piston 5 and the cylinder liner 1, on the one hand, the top of the gas piston 5 is covered with ionic liquid 6, and on the other hand, the 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 be guaranteed to 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, and the controller will send out an alarm signal, so that 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 substitution, improvement or change made to the implementation manner of the present invention falls within the protection scope of the present invention.

[0058] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A liquid-driven vertical ion liquid-sealed compression cylinder assembly, characterized in that: The invention comprises a cylinder sleeve, wherein a cylinder head is arranged on the top of the cylinder sleeve, an intake non-return valve and an exhaust non-return valve are arranged in the cylinder head, a gas piston is movably arranged in the cylinder sleeve, a gas compression chamber is formed between the gas piston and the cylinder head, an ion liquid is covered on the top of the gas piston, an ion liquid storage chamber is arranged between the side wall of the gas piston and the side wall of the cylinder sleeve, the ion liquid storage chamber is connected with the ion liquid on the top of the gas piston through an ion liquid channel in the gas piston, the ion liquid is used for cooling, lubricating and sealing the gas piston and the cylinder sleeve, a scraper assembly is installed on the side wall of the gas piston on the upper side of the ion liquid storage chamber, a liquid impact prevention structure is installed in the cylinder head, an ion liquid leakage detection structure is installed on one side of the bottom of the cylinder sleeve, a hydraulic drive device is installed at the bottom of the cylinder sleeve, and a liquid drive buffer structure is arranged in the hydraulic drive device.

2. According to claim 1, a liquid-driven vertical ion liquid-sealed compression cylinder assembly is 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 sleeve 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 a plurality of screws. The edge of the scraper plate is in sliding contact with the inner wall of the cylinder sleeve.

3. The liquid-driven vertical ion liquid-sealed compression cylinder assembly according to claim 1 is 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 sleeve 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 sleeve.

4. The liquid-driven vertical ion liquid-sealed compression cylinder assembly according to claim 1 is characterized in that: The cylinder head includes a cylinder head body, in which an intake channel and an exhaust channel are arranged, in which an intake check valve is arranged, in which an exhaust check valve is arranged, and between which a connecting channel is arranged, which connects the intake channel, the exhaust channel and the gas compression chamber in the cylinder, in which a liquid-proof structure is installed, the liquid-proof structure includes a liquid-proof valve, in which a labyrinth-type channel is arranged; a liquid-adding channel is also arranged 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.

5. The liquid-driven vertical ion liquid-sealed compression cylinder assembly according to claim 4 is characterized in that: The anti-liquid impact valve comprises a first valve plate, a second valve plate and a third valve plate stacked in sequence from bottom to top, a ventilation plate is respectively arranged between the first valve plate and the second valve plate, and between the second valve plate and the third valve plate, a plurality of arc grooves are respectively arranged along the circumference of the first valve plate, the second valve plate and the third valve plate, the arc grooves on the first valve plate and the third valve plate are at the same position, the arc grooves on the second valve plate, the first valve plate and the third valve plate are at staggered positions, and a hollow hole is arranged at a position corresponding to the arc groove on the ventilation plate.

6. The liquid-driven vertical ion liquid-sealed compression cylinder assembly according to claim 5 is characterized in that: The bolts pass through the center holes of the first valve plate, the ventilation plate, the second valve plate, the ventilation 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 ventilation plate, the second valve plate, the ventilation plate and the third valve plate, and positioning pins are inserted into the positioning holes.

7. The liquid-driven vertical ion liquid-sealed compression cylinder assembly according to claim 1 is 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.

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

9. The liquid-driven vertical ion liquid-sealed compression cylinder assembly according to claim 8 is characterized in that: The liquid-driven buffer structure includes a connecting hole that passes through the oil piston from top to bottom, with both ends of the connecting hole being configured with constrictions, a buffer rod with a matching shape being movably provided in the connecting hole, and a gap being provided between the outer wall of the buffer rod and the inner wall of the connecting hole; the shapes of both ends of the buffer rod are matched with the shapes of the constrictions at both ends of the connecting hole to seal the constrictions, and a plane is provided on the side wall of the buffer rod, and a gap is formed between the plane and the inner wall of the connecting hole.

10. 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 arranged between the gas piston and the cylinder sleeve at the lower side of the ionic liquid storage chamber.

Images