CN215950007U - Large-traffic intelligent filling equipment of fluid pressure type cryogenic liquid - Google Patents

Abstract

The utility model discloses a hydraulic type low-temperature liquid large-flow intelligent filling device which comprises a shell, wherein a bidirectional pressure cylinder is arranged in the shell and used for pumping low-temperature liquid back and forth for filling, a hydraulic assembly used for driving the bidirectional pressure cylinder is also arranged in the shell, a human-computer interaction interface is arranged on the outer side wall of the shell, and the bidirectional pressure cylinder comprises a hydraulic piston cavity arranged in the bidirectional pressure cylinder. The utility model realizes filling by adopting the hydraulic drive bidirectional pressure cylinder, applies work to the low-temperature liquid by matching with the one-way valve and the reversing valve group, provides stronger power for filling equipment, realizes the reciprocating filling use of the bidirectional pressure cylinder, realizes the pressurization and output of the low-temperature liquid, meets the filling requirements of the low-temperature liquid with large flow and ultrahigh pressure, and has the advantages of high automation degree, high filling efficiency, simple, safe and reliable operation and convenient popularization.

Description

Large-traffic intelligent filling equipment of fluid pressure type cryogenic liquid

Technical Field

The utility model relates to the technical field of filling equipment, in particular to hydraulic type low-temperature liquid large-flow intelligent filling equipment.

Background

Along with the continuous development of national science and technology, the application of low-temperature liquid or ultralow-temperature liquid is more and more extensive, the filling requirement is higher and higher, the filling, compression and pressure boosting of the low-temperature liquid are developed to another height, and the low-temperature filling industry mainly adopts a connecting rod reciprocating plunger type low-temperature liquid pump at present, and the defects that the flow can be met, but the pressure cannot be met are overcome; also, a pneumatic booster pump is used, which has disadvantages of an excessively small flow rate and failure to operate for a long time.

In order to meet the requirement of filling of high-flow and ultrahigh-pressure low-temperature liquid, the applicant provides a novel device which realizes the functions of compressing, filling, boosting and the like of the low-temperature liquid by taking hydraulic pressure as power and a bidirectional booster cylinder as an acting device.

Disclosure of Invention

The utility model aims to provide a hydraulic type low-temperature liquid large-flow intelligent filling device to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the hydraulic type low-temperature liquid large-flow intelligent filling equipment comprises a shell, wherein a bidirectional pressure cylinder is arranged in the shell and used for pumping low-temperature liquid back and forth for filling, a hydraulic assembly used for driving the bidirectional pressure cylinder is also arranged in the shell, and a human-computer interaction interface is arranged on the outer side wall of the shell;

the bidirectional booster cylinder comprises a hydraulic piston cavity arranged in the bidirectional booster cylinder, a piston is arranged in the hydraulic piston cavity, plug columns are arranged on two sides of the piston, pump suction seats are arranged at two ends of the bidirectional booster cylinder, pump suction cavities matched with the plug columns are arranged in the pump suction seats, one ends, far away from the piston, of the two plug columns extend into the pump suction cavities at two ends respectively, liquid inlet pipes are connected to the pump suction seats at two ends respectively, one-way valves are arranged on the liquid inlet pipes at two ends respectively, one ends, far away from the pump suction seats, of the liquid inlet pipes at two ends are communicated, one of the liquid inlet pipes at two ends is connected with a connector, liquid outlet pipes are also connected to the pump suction seats at two ends respectively, one-way valves are arranged on the liquid outlet pipes at two ends respectively, one ends, far away from the pump suction seats, of the liquid outlet pipes at two ends are communicated, and one of the liquid outlet pipes is connected with the connector;

the human-computer interaction interface comprises an internally mounted PLC, a display screen and an operation button, wherein the display screen and the operation button are electrically connected to the PLC.

Preferably, the hydraulic pressure subassembly including install in the inside motor of casing, the motor passes through the wire and is connected with the inside PLC controller electricity of human-computer interaction interface, the output of motor is connected with the oil pump, be connected with into oil pipe and play oil pipe on the oil pump respectively, the oil tank is installed to inside one side of casing, the one end that the oil pump was kept away from to the oil pipe is linked together with the oil tank, the one end that the oil pump was kept away from to the oil pipe is connected with the switching-over valves, the switching-over valves passes through the wire and is connected with the inside PLC controller electricity of human-computer interaction interface, be connected with two pipes on the switching-over valves, two the one end that the switching-over valves were kept away from to the pipe is linked together with hydraulic piston intracavity portion both ends respectively.

Preferably, be connected with one section liquid return pipe on the drain pipe, one end that the drain pipe was kept away from to one section liquid return pipe is connected with the relief valve, be connected with two-stage section liquid return pipe on the relief valve, be connected with three-stage liquid return pipe between two-stage section liquid return pipe and one section liquid return pipe, install the solenoid valve on the three-stage liquid return pipe, and the three-stage liquid return pipe internally mounted on solenoid valve upper reaches has pressure sensor.

Preferably, be connected with one section on the oil pipe and return oil pipe, one end that oil pipe was kept away from to one section returns oil pipe is connected with the relief valve, be connected with two-section oil pipe on the relief valve, and two-section oil pipe returns one end that oil pipe kept away from the relief valve and is linked together with the oil tank.

Preferably, an oil level sensor is installed inside the oil tank, and the output end of the oil level sensor is electrically connected with the input end of the PLC through a wire.

Preferably, the four corners of the bottom of the casing are provided with supporting members, and the supporting members are supporting legs or universal wheels.

Compared with the prior art, the utility model has the beneficial effects that:

1: the utility model realizes filling by adopting the hydraulic drive bidirectional pressure cylinder, applies work to the low-temperature liquid by matching with the one-way valve and the reversing valve group, provides stronger power for filling equipment, realizes the reciprocating filling use of the bidirectional pressure cylinder, realizes the pressurization and output of the low-temperature liquid, meets the filling requirements of the low-temperature liquid with large flow and ultrahigh pressure, and has the advantages of high automation degree, high filling efficiency, simple, safe and reliable operation and convenient popularization.

2: the utility model increases the safety of the low-temperature liquid in the high-capacity and ultrahigh-pressure filling process by arranging the return pipelines on the liquid outlet pipe and the oil outlet pipe.

Drawings

FIG. 1 is a schematic front view of the internal structure of the present invention;

fig. 2 is a schematic top view of the bidirectional booster cylinder of the present invention.

In the figure: 1. an oil outlet pipe; 2. a section of oil return pipe; 3. two sections of oil return pipes; 4. a reversing valve group; 5. a human-computer interaction interface; 6. a conduit; 7. a housing; 8. a liquid outlet pipe; 9. a bidirectional booster cylinder; 10. a liquid return pipe; 11. three sections of liquid return pipes; 12. a second-stage liquid return pipe; 13. a liquid inlet pipe; 14. a motor; 15. an oil pump; 16. an oil inlet pipe; 17. an oil tank; 18. a pumping chamber; 19. a plug; 20. a piston; 21. a hydraulic piston chamber; 22. a pump suction seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, an embodiment of the present invention is shown: the hydraulic type low-temperature liquid large-flow intelligent filling equipment comprises a shell 7, wherein a bidirectional booster cylinder 9 is installed inside the shell 7, the bidirectional booster cylinder 9 is used for pumping low-temperature liquid back and forth for filling, a hydraulic assembly used for driving the bidirectional booster cylinder 9 is also installed inside the shell 7, supporting pieces are arranged at four corners of the bottom of the shell 7, the supporting pieces are supporting legs or universal wheels, the supporting legs are suitable for being used in a fixed field, the universal wheels are convenient to transfer and use, and a human-computer interaction interface 5 is installed on the outer side wall of the shell 7;

the bidirectional booster cylinder 9 comprises a hydraulic piston cavity 21 arranged inside the bidirectional booster cylinder, a piston 20 is arranged inside the hydraulic piston cavity 21, a sealing ring is arranged between the piston 20 and the hydraulic piston cavity 21, plug columns 19 are arranged on two sides of the piston 20, the plug columns 19 are arranged in parallel to the hydraulic piston cavity 21, hydraulic pressure drives the piston 20 to move to generate the moving effect of the plug columns 19, the plug columns 19 are preferably manufactured by being integrally formed with the piston 20, pump suction seats 22 are arranged at two ends of the bidirectional booster cylinder 9, pump suction cavities 18 matched with the plug columns 19 are arranged inside the pump suction seats 22, one ends, far away from the piston 20, of the two plug columns 19 respectively extend into the pump suction cavities 18 at two ends, a sealing ring is arranged between the plug columns 19 and the pump suction cavities 18, the reciprocating movement of the plug columns 19 in the pump suction cavities 18 generates negative pressure and high pressure effect in the pump suction cavities 18, low-temperature liquid is sucked and filled, and hydraulic oil is prevented from being mixed with the low-temperature liquid by being arranged between the pump suction cavities 18 and the hydraulic piston cavity 21, the two-end pump suction seats 22 are connected with liquid inlet pipes 13, the two-end liquid inlet pipes 13 are provided with check valves which prevent low-temperature liquid from flowing back, the check valves can be any one of a spring type, a gravity type or a swing type, one ends of the two-end liquid inlet pipes 13 far away from the pump suction seats 22 are communicated, one liquid inlet pipe 13 is connected with a joint, namely, the low-temperature liquid sucked into the two-end pump suction seats 22 is redistributed and distributed to the two-end pump suction seats 22 after being connected with a container for containing the low-temperature liquid by one liquid inlet pipe 13, the two-end pump suction seats 22 are also connected with liquid outlet pipes 8, the two-end liquid outlet pipes 8 are provided with check valves, one ends of the two-end liquid outlet pipes 8 far away from the pump suction seats 22 are communicated, one liquid outlet pipe 8 is connected with a joint, namely, the low-temperature liquid pumped out by the two-end pump suction seats 22 is discharged by one liquid outlet pipe 8, the liquid outlet pipe 8 is connected with a section of liquid return pipe 10, one end of the first-section liquid return pipe 10 far away from the liquid outlet pipe 8 is connected with a pressure relief valve, the pressure relief valve is connected with a second-section liquid return pipe 12, a three-section liquid return pipe 11 is connected between the two-section liquid return pipe 12 and the one-section liquid return pipe 10, an electromagnetic valve is arranged on the three-section liquid return pipe 11, and the three sections of liquid return pipes 11 at the upstream of the electromagnetic valve are internally provided with pressure sensors, the electromagnetic valve and the pressure release valve jointly act on the reflux of the low-temperature liquid for use, the electromagnetic valve provides an electric control reflux pressure release mode, the pressure relief valve provides a mechanical pressure relief backflow mode, and when in actual use, the pressure sensor, the pressure data in the pipe detected by the liquid pressure sensor in real time is used as the basis for opening the electromagnetic valve, the opening pressure of the electromagnetic valve is set to be smaller than the opening pressure of the pressure relief valve, and the opening pressure is within the allowable safe pressure range.

Human-computer interaction interface 5 includes internally mounted's PLC controller, display screen and operating button on the electric connection PLC controller, human-computer interaction interface 5 utilizes each electrical apparatus of inside PLC controller controlgear, for example, the motor, the solenoid valve, the detection contrast and the control break-make electricity of data such as sensor use, control mode divide into timing control and detection contrast control etc. for realize the automated inspection of equipment and fill dress use purpose automatically, the PLC controller belongs to the automation operation demand that programmable logic controller can satisfy equipment, it is repeated here to differ one.

The hydraulic assembly comprises a motor 14 arranged inside the shell 7, the motor 14 is electrically connected with a PLC (programmable logic controller) inside the human-computer interaction interface 5 through a lead, the PLC controls the on-off of the motor 14 according to the timing, so that the low-temperature liquid can be filled intermittently, the control can conveniently realize the continuous intermittent filling production of the low-temperature liquid, or the control is carried out through the input signal of an external sensor, for example, when a container needing to be filled is moved to a filling position by a photoelectric sensor, the motor 14 is powered on to work to drive the bidirectional booster cylinder 9 for filling, and the like, the output end of the motor 14 is connected with an oil pump 15, the oil pump 15 is respectively connected with an oil inlet pipe 16 and an oil outlet pipe 1, an oil tank 17 is arranged on one side inside the shell 7, the oil tank 17 is used for medium supplement of the oil pump 15 and an integral conveying pipeline of hydraulic oil, and an oil level sensor is arranged inside the oil tank 17, the surplus of hydraulic oil in an oil tank 17 is conveniently detected, the output end of an oil level sensor is electrically connected with the input end of a PLC (programmable logic controller) through a lead, one end, far away from an oil pump 15, of an oil inlet pipe 16 is communicated with the oil tank 17, one section of oil return pipe 2 is connected onto the oil outlet pipe 1, one end, far away from the oil outlet pipe 1, of the one section of oil return pipe 2 is connected with a pressure release valve, two sections of oil return pipes 3 are connected onto the pressure release valve, one end, far away from the pressure release valve, of the two sections of oil return pipes 3 is communicated with the oil tank 17, one end, far away from the oil pump 5, of the oil outlet pipe 1 is connected with a reversing valve group 4, the reversing valve group 4 is electrically connected with a PLC controller inside a human-computer interaction interface 5 through a lead, two guide pipes 6 are connected onto the reversing valve group 4, one ends, far away from the reversing valve group 4, of the two guide pipes 6 are respectively communicated with two ends inside piston cavities 21, and the reversing valve group 4 and the PLC controller is electrically connected with the solenoid valve inside, the PLC controls the opening or closing of electromagnetic valves arranged on all reversing pipelines in the reversing valve group 4 to generate the change of a hydraulic medium conveying path, so that hydraulic oil is injected from the interior of a hydraulic piston cavity 21 on one side of a piston 20 to drive a plug 19 to move, or hydraulic oil is injected from the interior of a hydraulic piston cavity 21 on the other side of the piston 20 to generate the purpose of adjusting the movement direction of the plug 19, continuous reciprocating adjustment can drive the reciprocating pressurization filling effect of a pumping seat 22, and pipelines (not shown) capable of containing the backflow of the hydraulic medium are arranged in the reversing valve group 4 and used for enabling the hydraulic oil on the other side to flow back out of the hydraulic piston cavity 21 to realize the reciprocating movement of the piston 20 when the hydraulic oil in the hydraulic piston cavity 21 on one side of the piston 20 is increased.

The working principle is as follows: when low-temperature liquid needs to be filled, a liquid inlet pipe 13 is connected with a container for containing the low-temperature liquid through a joint, a liquid outlet pipe 8 is connected with the container for filling the low-temperature liquid through a joint, a two-section liquid return pipe 12 is connected with the container for containing the low-temperature liquid through a joint, an external power supply is connected, a motor 14 drives an oil pump 15 to work to continuously pump hydraulic oil to the position of a reversing valve group 4, a PLC (programmable logic controller) in a man-machine interaction interface 5 controls an electromagnetic valve in the reversing valve group 4 to be opened or closed to change a conveying path of the hydraulic oil, namely, hydraulic driving force is respectively generated in a hydraulic piston cavity 21 on two sides of a piston 20 in a reciprocating mode to drive plug columns 19 on two ends to reciprocate in a pumping cavity 18 on two ends to suck and pump the low-temperature liquid, negative pressure in the pumping cavity 18 is generated when the plug column 19 on one end is movably pulled, so that the low-temperature liquid is sucked, the plug column 19 on the other end is extruded to generate high pressure in the pumping cavity 19 and pump the sucked low-temperature liquid, when the low-temperature liquid is over-pressure caused by pipeline blockage or damaged by a reversing valve group 4, the mechanical pressure relief valves on the first section of oil return pipe 2 and the second section of oil return pipe 3 can be automatically opened by the large pressure generated by the oil pump 15, so that the hydraulic oil can flow back to the inside of the oil tank 17 again to avoid pipeline damage, when the internal pressure of the low-temperature liquid is over-pressure caused by pipeline blockage and other reasons, and the pressure data detected by the liquid pressure sensor exceeds the preset value in the PLC controller, the PLC controller electrically controls the electromagnetic valve on the three-section liquid return pipe 11 to be opened to play a role of relieving pressure and flowing back of the low-temperature liquid, and when the electromagnetic valve or the pressure sensor on the three-section liquid return pipe 11 is damaged, the pressure relief valve on the second section liquid return pipe 12 can still be mechanically and automatically opened under a certain pressure, thereby the low-temperature liquid filling has double safety protection effects.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims (6)

1. The utility model provides a large-traffic intelligent filling equipment of fluid pressure type cryogenic liquid, includes casing (7), its characterized in that: a bidirectional booster cylinder (9) is installed inside the shell (7), the bidirectional booster cylinder (9) is used for pumping low-temperature liquid back and forth for charging, a hydraulic assembly used for driving the bidirectional booster cylinder (9) is also installed inside the shell (7), and a human-computer interaction interface (5) is installed on the outer side wall of the shell (7);

the two-way pressure cylinder (9) comprises a hydraulic piston cavity (21) arranged inside the two-way pressure cylinder, the inside of the hydraulic piston cavity (21) is provided with a piston (20), the two sides of the piston (20) are provided with plugs (19), the two ends of the two-way pressure cylinder (9) are provided with pump suction seats (22), the inside of each pump suction seat (22) is provided with a pump suction cavity (18) matched with the corresponding plug (19), one ends, far away from the piston (20), of the plugs (19) extend into the insides of the pump suction cavities (18) at the two ends respectively, the pump suction seats (22) at the two ends are connected with liquid inlet pipes (13), the liquid inlet pipes (13) at the two ends are provided with one-way valves, one ends, far away from the pump suction seats (22), of the liquid inlet pipes (13) at the two ends are communicated, one end of the liquid inlet pipe (13) is connected with a liquid inlet joint, the pump suction seats (22) at the two ends are further connected with liquid outlet pipes (8), and the liquid outlet pipes (8) at the two ends are provided with one-way valves, one ends of the liquid outlet pipes (8) at the two ends, which are far away from the pumping seat (22), are communicated, and one liquid outlet pipe (8) is connected with a joint;

the human-computer interaction interface (5) comprises an internally mounted PLC, a display screen and an operation button, wherein the display screen and the operation button are electrically connected to the PLC.

2. The large-flow intelligent filling device for hydraulic cryogenic liquid according to claim 1, characterized in that: the hydraulic assembly comprises an electric motor (14) mounted inside the housing (7), the motor (14) is electrically connected with a PLC controller in the human-computer interaction interface (5) through a lead, the output end of the motor (14) is connected with an oil pump (15), the oil pump (15) is respectively connected with an oil inlet pipe (16) and an oil outlet pipe (1), an oil tank (17) is arranged on one side inside the shell (7), one end of the oil inlet pipe (16) far away from the oil pump (15) is communicated with the oil tank (17), one end of the oil outlet pipe (1) far away from the oil pump (15) is connected with a reversing valve group (4), the reversing valve group (4) is electrically connected with a PLC (programmable logic controller) in the human-computer interaction interface (5) through a lead, the reversing valve group (4) is connected with two guide pipes (6), and one ends, far away from the reversing valve group (4), of the two guide pipes (6) are respectively communicated with two ends inside the hydraulic piston cavity (21).

3. The large-flow intelligent filling device for hydraulic cryogenic liquid according to claim 1, characterized in that: be connected with one section liquid return pipe (10) on drain pipe (8), one end that drain pipe (8) were kept away from in one section liquid return pipe (10) is connected with the relief valve, be connected with two-section liquid return pipe (12) on the relief valve, be connected with three-section liquid return pipe (11) between two-section liquid return pipe (12) and one section liquid return pipe (10), install the solenoid valve on three-section liquid return pipe (11), and the three-section liquid return pipe (11) internally mounted on the solenoid valve upper reaches has pressure sensor.

4. The large-flow intelligent filling device for the hydraulic low-temperature liquid according to claim 2, characterized in that: go out to be connected with one section on oil pipe (1) and return oil pipe (2), one end that oil pipe (1) was kept away from in one section time oil pipe (2) is connected with the relief valve, be connected with two-section time oil pipe (3) on the relief valve, and two-section time oil pipe (3) keep away from the one end of relief valve and be linked together with oil tank (17).

5. The large-flow intelligent filling device for the hydraulic low-temperature liquid according to claim 2, characterized in that: the oil tank (17) is internally provided with an oil level sensor, and the output end of the oil level sensor is electrically connected with the input end of the PLC through a wire.

6. The large-flow intelligent filling device for hydraulic cryogenic liquid according to claim 1, characterized in that: and supporting pieces are arranged at four corners of the bottom of the shell (7), and the supporting pieces are supporting legs or universal wheels.

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