Liquid-driven ionic liquid-sealed compression cylinder

Abstract

The utility model relates to the technical field of ionic liquid cylinders, in particular to a liquid-driven ionic liquid sealing compression cylinder. 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 air compression cavity is formed between the air piston and the cylinder head, the top of the air piston is covered with ionic liquid, and an ionic liquid storage cavity is formed between the side wall of the air piston and the side wall of the cylinder sleeve. The ionic liquid storage cavity is communicated with ionic liquid on the top of the air piston through an ionic liquid channel in the air piston, a liquid scraping assembly is installed on the side wall of the air piston on the upper side of the ionic liquid storage cavity, an oil cylinder is installed at the bottom of the cylinder sleeve, and an oil piston is movably arranged in the oil cylinder and connected with the air piston through a piston rod. The top and the bottom of the side wall of the oil cylinder are provided with hydraulic oil ports. A double-sealing structure is formed, the situation of sealing failure is avoided, 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, and the operation precision of the air piston is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to ion liquid gas cylinder technical field especially relates to a liquid drive ion liquid seal compression cylinder. BACKGROUND

[0002] At present, the ion liquid seal compression cylinder is a new type of equipment for pressurizing gas, and its structure is disclosed in the patent application with the publication number CN116044712A, which discloses an ionic liquid compressor, which realizes the cooling and lubrication of the piston and improves the sealing effect between the piston and the cylinder by injecting ionic liquid into the compression chamber of the cylinder. However, the existing ion liquid gas cylinder of this form has the following problems: on the one hand, the ionic liquid in the compression chamber only covers the top of the piston. In the actual working process, due to the unstable working environment of the ion liquid gas cylinder, vibration or shaking is inevitable, which causes the ionic liquid on the top of the piston to shake, and cannot guarantee that the ionic liquid is always sealed between the piston and the cylinder liner. The position without ionic liquid sealing will cause sealing failure, and the sealing failure will cause gas leakage between the piston and the cylinder liner; on the other hand, part of the ionic liquid will also adhere to the inner wall of the cylinder liner and leak with the reciprocating motion of the piston; thirdly, the driving form of the piston adopts crankshaft connecting rod structure, which has poor stability and affects the running accuracy of the piston. There is no good solution to the above problems at present.

[0003] In summary, the above problems in the ion liquid seal compression cylinder have become a technical problem that needs to be solved in the industry. UTILITY MODEL CONTENTS

[0004] The utility model makes up for the deficiency of the prior art, provides a liquid drive ion liquid seal compression cylinder, solves the sealing failure problem caused by shaking in the previous ion liquid gas cylinder, solves the problem of leakage of part of the ionic liquid adhering to the inner wall of the cylinder liner in the previous ion liquid gas cylinder, and solves the problem of poor stability of the driving structure of the previous piston, which affects the running accuracy of the piston.

[0005] The utility model adopts the technical scheme to solve the above technical problems:

[0006] The utility model provides a kind of liquid drives away ion liquid sealed compression cylinder, including cylinder sleeve, the top of the cylinder sleeve is equipped with cylinder head, inlet valve and exhaust valve are equipped in cylinder head, gas piston is movably arranged in cylinder sleeve, and gas compression cavity is between gas piston and cylinder head, the top of gas piston is covered with ion liquid, ion liquid storage cavity is equipped between the side wall of gas piston and the side wall of cylinder sleeve, ion liquid storage cavity is connected with the ion liquid of the top of gas piston by ion liquid channel in gas piston, ion liquid is used to cool, lubricate and seal between gas piston and cylinder sleeve, and the side wall of gas piston on the upper side of ion liquid storage cavity is equipped with liquid scraping assembly, oil cylinder is installed in the bottom of the cylinder sleeve, oil piston is movably arranged in oil cylinder, and oil piston is connected with gas piston by piston rod, and the top and bottom of the side wall of oil cylinder are equipped with hydraulic oil inlet and outlet.

[0007] The liquid scraping assembly includes a scraping plate for scraping the ion liquid adhered to the inner wall of the cylinder sleeve into the ion liquid storage cavity.

[0008] The top of the scraping plate is tightly fixed by a fixing ring, and the fixing ring is fixedly connected with the top of the gas piston by a plurality of screws.

[0009] The edge of the scraping plate is in sliding contact with the inner wall of the cylinder sleeve.

[0010] The liquid scraping assembly includes a double-guide ring structure for guiding the reciprocating motion of the gas piston and scraping the ion liquid adhered to the inner wall of the cylinder sleeve into the ion liquid storage cavity.

[0011] The double-guide ring structure includes two guide rings mounted on the side wall of the gas piston.

[0012] The outer side of the guide ring is in sliding contact with the inner wall of the cylinder sleeve.

[0013] A plurality of sealing rings and guide rings are arranged between the gas piston and the cylinder sleeve on the lower side of the ion liquid storage cavity.

[0014] A plurality of sealing rings and guide rings are arranged between the oil piston and the oil cylinder.

[0015] The utility model has the following advantages by adopting the above scheme:

[0016] The ion liquid storage cavity is connected with the ion liquid on the top of the gas piston through the ion liquid channel in the gas piston, and a double sealing structure is formed, that is, even if the ion liquid on the top of the gas piston cannot guarantee to be sealed between the gas piston and the cylinder sleeve all the time due to shaking, the ion liquid in the ion liquid storage cavity can be sealed between the gas piston and the cylinder sleeve all the time, the sealing effect is ensured, the situation of sealing failure is avoided, and gas leakage between the gas piston and the cylinder sleeve is effectively prevented; meanwhile, the liquid scraping plate or the double guide ring structure on the upper side of the ion liquid storage cavity can scrape the ion liquid attached to the inner wall of the cylinder sleeve into the ion liquid storage cavity, so that the ion liquid attached to the inner wall of the cylinder sleeve is prevented from leaking with the reciprocating movement of the gas piston; in addition, the hydraulic oil enters and exits the oil cylinder through the hydraulic oil inlet and outlet, drives the oil piston to move up and down, and the oil piston drives the gas piston to reciprocate in the cylinder sleeve through the piston rod, so that the hydraulic driving of the gas piston is realized, the stability is good, and the operation precision of the gas piston is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the embodiment 1 of the utility model.

[0018] Figure 2 It is Figure 1 It is a structural schematic view of the gas piston.

[0019] Figure 3 It is a structural schematic view of the embodiment 2 of the utility model.

[0020] In the drawing, 1, cylinder sleeve, 2, cylinder head, 3, inlet one-way valve, 4, exhaust one-way valve, 5, gas piston, 6, ion liquid, 7, ion liquid storage cavity, 8, ion liquid channel, 9, liquid scraping plate, 10, fixed ring, 11, sealing ring, 12, guide ring, 13, oil cylinder, 14, oil piston, 15, piston rod, 16, hydraulic oil inlet and outlet, 17, double guide ring structure. DETAILED DESCRIPTION

[0021] In order to clearly illustrate the technical features of the scheme, the utility model is described in detail below through specific implementation manners and in combination with the drawings.

[0022] Embodiment 1

[0023] As Figures 1-2As shown, a liquid-driven ion-liquid sealed compression cylinder includes a cylinder liner 1, a cylinder head 2 at the top of the cylinder liner 1, an inlet check valve 3 and an exhaust check valve 4 inside the cylinder head 2, a piston 5 movable inside the cylinder liner 1, a gas compression chamber between the piston 5 and the cylinder head 2, an ion liquid 6 covering the top of the piston 5, an ion liquid storage chamber 7 between the side wall of the piston 5 and the side wall of the cylinder liner 1, the ion liquid storage chamber 7 being connected to the ion liquid 6 at the top of the piston 5 via an ion liquid channel 8 inside the piston 5, the ion liquid being used for cooling, lubrication and sealing between the piston 5 and the cylinder liner 1, a scraping assembly being installed on the piston side wall above the ion liquid storage chamber, an oil cylinder 13 being installed at the bottom of the cylinder liner 1, an oil piston 14 movable inside the oil cylinder 13, the oil piston 14 being connected to the piston 5 via a piston rod 15, and hydraulic oil inlets and outlets 16 being provided at the top and bottom of the side wall of the oil cylinder 13.

[0024] The scraping assembly includes a scraper 9, which is used to scrape the ionic liquid adhering to the inner wall of the cylinder liner 1 into the ionic liquid storage chamber 7.

[0025] The top of the scraper blade 9 is pressed and fixed by a retaining ring 10 for easy installation. The retaining ring 10 is fixedly connected to the top of the air piston 5 by several screws.

[0026] The edge of the scraper 9 slides in contact with the inner wall of the cylinder liner 1, which helps to cleanly scrape away the ionic liquid adhering to the inner wall of the cylinder liner 1.

[0027] Several sealing rings 11 and guide rings 12 are provided between the gas piston 5 and the cylinder liner 1 on the lower side of the ionic liquid storage chamber 7, which serve to seal and guide.

[0028] The oil piston 14 and the oil cylinder 13 are provided with a number of sealing rings 11 and guide rings 12, which serve to seal and guide.

[0029] Example 2:

[0030] like Figure 3 As shown, the difference between this embodiment and Embodiment 1 is that:

[0031] The scraping assembly includes a double guide ring structure 17, which guides the reciprocating motion of the piston 5 and scrapes the ionic liquid adhering to the inner wall of the cylinder liner 1 into the ionic liquid storage chamber 7.

[0032] The dual guide ring structure 17 includes two guide rings installed on the side wall of the gas piston 5.

[0033] The outer side of the guide ring slides in contact with the inner wall of the cylinder liner 1, which not only guides the reciprocating motion of the piston 5, but also helps to scrape off the ionic liquid adhering to the inner wall of the cylinder liner 1.

[0034] Working principle:

[0035] In operation, hydraulic oil enters and exits the oil cylinder 13 through the hydraulic oil inlet and outlet 16, so as to drive the oil piston 14 to move up and down, and the oil piston 14 drives the gas piston 5 to reciprocate in the cylinder sleeve 1. When the gas piston 5 moves downward, the gas enters the gas compression chamber through the gas inlet one-way valve 3. When the gas piston 5 moves upward, the gas in the gas compression chamber is compressed and pressurized, and then is discharged outward through the gas outlet one-way valve 4, so as to realize the pressurization of the gas. During the pressurization of the gas in the gas compression chamber, in addition to the sealing of the plurality of sealing rings 11 between the gas piston 5 and the cylinder sleeve 1, on the one hand, the top of the gas piston 5 is covered with the ionic liquid 6, and on the other hand, the ionic liquid storage chamber 7 also stores the ionic liquid 6, so as to form a double-sealing structure. Even if the ionic liquid on the top of the gas piston 5 cannot be sealed between the gas piston 5 and the cylinder sleeve 1 due to shaking, the ionic liquid in the ionic liquid storage chamber 7 can be sealed between the gas piston 5 and the cylinder sleeve 1 at all times, and the two can cooperate to ensure the sealing effect, avoid the sealing failure, effectively prevent the gas leakage between the gas piston 5 and the cylinder sleeve 1, and improve the compression efficiency of the gas cylinder. At the same time, the liquid scraping plate 9 or the double-guiding ring structure 17 on the upper side of the ionic liquid storage chamber 7 can scrape the ionic liquid attached to the inner wall of the cylinder sleeve 1 into the ionic liquid storage chamber 7, so as to avoid the leakage of the ionic liquid attached to the inner wall of the cylinder sleeve 1 with the reciprocating movement of the gas piston 5.

[0036] The above specific embodiments cannot be regarded as a limitation on the protection scope of the present application, and any alternative improvement or change made by the person skilled in the art to the embodiments of the present application falls within the protection scope of the present application.

[0037] The details not described in the present application are the known technology of the person skilled in the art.

Claims

1. A liquid-driven ion-sealed compression cylinder, characterized in that: The system includes a cylinder liner, a cylinder head at the top of the cylinder liner, an intake check valve and an exhaust check valve inside the cylinder head, a gas piston that moves within the cylinder liner, a gas compression chamber between the gas piston and the cylinder head, an ionic liquid covering the top of the gas piston, an ionic liquid storage chamber between the side wall of the gas piston and the side wall of the cylinder liner, the ionic liquid storage chamber being connected to the ionic liquid at the top of the gas piston via an ionic liquid channel inside the gas piston, the ionic liquid being used for cooling, lubrication and sealing between the gas piston and the cylinder liner, a scraping assembly being installed on the side wall of the gas piston above the ionic liquid storage chamber, and a hydraulic cylinder being installed at the bottom of the cylinder liner, an oil piston that moves within the hydraulic cylinder, the oil piston being connected to the gas piston via a piston rod, and hydraulic oil inlets and outlets being provided at the top and bottom of the side wall of the hydraulic cylinder.

2. The liquid-driven ion-sealed compression cylinder according to claim 1, characterized in that: The scraping assembly includes a scraper blade, which is used to scrape the ionic liquid adhering to the inner wall of the cylinder liner into the ionic liquid storage chamber.

3. The liquid-driven ion-sealed compression cylinder according to claim 2, characterized in that: The top of the scraper is pressed and fixed by a retaining ring, which is fixedly connected to the top of the gas piston by several screws.

4. The liquid-driven ion-sealed compression cylinder according to claim 2, characterized in that: The edge of the scraper blade makes sliding contact with the inner wall of the cylinder liner.

5. A liquid-driven ion-sealed compression cylinder according to claim 1, characterized in that: The scraping assembly includes a dual guide ring structure, which guides the reciprocating motion of the piston and scrapes the ionic liquid adhering to the inner wall of the cylinder liner into the ionic liquid storage chamber.

6. The liquid-driven ion-sealed compression cylinder according to claim 5, characterized in that: The dual guide ring structure includes two guide rings installed on the side wall of the gas piston.

7. A liquid-driven ion-sealed compression cylinder according to claim 5, characterized in that: The outer side of the guide ring makes sliding contact with the inner wall of the cylinder liner.

8. The liquid-driven ion-sealed compression cylinder according to claim 1, characterized in that: Several sealing rings and guide rings are provided between the gas piston and the cylinder liner on the lower side of the ionic liquid storage chamber.

9. A liquid-driven ion-sealed compression cylinder according to claim 1, characterized in that: Several sealing rings and guide rings are provided between the oil piston and the oil cylinder.

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