CN219775482U

CN219775482U - Self-operated high-efficiency nitrogen supply system

Info

Publication number: CN219775482U
Application number: CN202321162084.XU
Authority: CN
Inventors: 张传开; 张志华; 李五一
Original assignee: Anqing Yicheng Chemical Technology Co ltd
Current assignee: Anqing Yicheng Chemical Technology Co ltd
Priority date: 2023-05-15
Filing date: 2023-05-15
Publication date: 2023-09-29
Anticipated expiration: 2033-05-15

Abstract

The utility model discloses a self-operated high-efficiency nitrogen supply system which comprises a nitrogen generator, a low-pressure nitrogen tank, a high-pressure nitrogen tank, a supercharger and an adjusting control valve, wherein the nitrogen generator is communicated with the low-pressure nitrogen tank, the supercharger is respectively communicated with the low-pressure nitrogen tank and the high-pressure nitrogen tank, the adjusting control valve is communicated with the low-pressure nitrogen tank through a monitoring pipe, the adjusting control valve comprises a sealing cavity, a movable piston and a restoring spring, the movable piston is movably arranged in the sealing cavity, two ends of the restoring spring are respectively connected with the movable piston and the inner wall of the sealing cavity, one side of the restoring spring, which is far away from the movable piston, is provided with a controller, the controller is electrically connected with the supercharger, the low-pressure nitrogen tank and the high-pressure nitrogen tank are communicated through a pressure relief pipe, one side of the movable piston, which is opposite to the restoring spring, is provided with a linkage rod, the linkage rod is inserted into the pressure relief pipe, and the linkage valve is arranged in the pressure relief pipe, and the nitrogen supply system can adjust nitrogen filling and discharging of nitrogen, so that the pressure of nitrogen protection of a centrifuge is ensured, and the nitrogen generating efficiency of the nitrogen generator is improved.

Description

Self-operated high-efficiency nitrogen supply system

Technical Field

The utility model relates to the technical field of industrial nitrogen production, in particular to a self-operated high-efficiency nitrogen supply system.

Background

The nitrogen has wide application in industry, the existing industrial nitrogen production device generates 0.6mpa of compressed air through a screw compressor, the compressed air is dehydrated and deoiled through a cold dryer, and then the trace oil gas in the compressed air is reduced by an adsorbent to prevent the adsorption of the oil gas to poison a molecular sieve catalyst, and the compressed air is adsorbed by the adsorbent of the nitrogen production machine to be used by a nitrogen production device.

The existing nitrogen production system is characterized in that pressure-sink air passes through an adsorption nitrogen production supply system, the adsorption nitrogen production system and production nitrogen equipment have unbalanced nitrogen production capacity and nitrogen consumption, nitrogen consumption is periodically fluctuated due to production nitrogen consumption, so that nitrogen pressure fluctuation of the system has phenomena of under-pressure and over-pressure, the centrifugal machine is stopped in an interlocking manner during under-pressure, and nitrogen production efficiency is reduced when the pressure of a nitrogen tank is high. The overpressure discharge often leads to unstable production of the centrifugal machine, and the nitrogen production efficiency of the nitrogen production machine cannot be fully exerted.

Disclosure of Invention

In order to solve the above-mentioned problems in the prior art, the present utility model provides a self-operated high-performance nitrogen supply system.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the self-operated high-efficiency nitrogen supply system comprises a nitrogen generator, a low-pressure nitrogen tank, a high-pressure nitrogen tank, a supercharger and an adjusting control valve, wherein the nitrogen generator is communicated with the low-pressure nitrogen tank, the supercharger is respectively communicated with the low-pressure nitrogen tank and the high-pressure nitrogen tank, the adjusting control valve is communicated with the low-pressure nitrogen tank through a monitoring pipe, the adjusting control valve comprises a sealing cavity, a movable piston and a return spring, the movable piston is movably arranged in the sealing cavity, two ends of the return spring are respectively connected with the movable piston and the inner wall of the sealing cavity, a controller is arranged on one side, away from the movable piston, of the return spring, and the controller is electrically connected with the supercharger;

the low-pressure nitrogen tank and the high-pressure nitrogen tank are communicated through a pressure relief pipe, a linkage rod is arranged on one side of the movable piston, which is opposite to the return spring, the linkage rod is inserted into the pressure relief pipe, and a linkage valve is arranged in the pressure relief pipe.

Preferably, the movable piston divides the sealing cavity into two independent sealing spaces, namely an air pressure top cavity and a spring top cavity, the monitoring pipe is communicated with the air pressure top cavity, and the controller is arranged in the spring top cavity.

Preferably, the controller includes signal transceiver, switch inserted bar, start switch and stop switch, and signal transceiver fixed mounting is in the spring top intracavity, and the switch inserted bar sets up in signal transceiver towards the one side of removing the piston, and start switch and stop switch are installed respectively in the outside of switch inserted bar, and start switch is closer to signal transceiver than stop switch and sets up.

Preferably, one side of the movable piston facing the spring top cavity is provided with an extrusion sleeve, the extrusion sleeve is correspondingly arranged with the switch inserted link, and the inner diameter of the extrusion sleeve is the same as the outer diameter of the switch inserted link.

Preferably, the linkage valve comprises a fixed clamping plate, a jack-back spring and a movable sealing door, wherein the movable sealing door is arranged at the end of the linkage rod, two ends of the jack-back spring are respectively connected with the movable sealing door and the inner wall of the pressure relief pipe, the jack-back spring can eject the movable sealing door part out of the fixed clamping plate when the jack-back spring is in a normal length, and the fixed clamping plate and the ejected movable sealing door are clung to the inner wall of the pressure relief pipe.

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

1. through adjusting the control valve real-time supervision low pressure nitrogen gas jar atmospheric pressure, make the nitrogen supply system can fill to put to nitrogen gas and adjust, make centrifuge protect nitrogen gas pressure obtain guaranteeing, improved the nitrogen production efficiency of nitrogen machine.

2. The adjusting control valve simultaneously controls the work of the supercharger and the air pressure compensation work of the high-pressure nitrogen tank to the low-pressure nitrogen tank, and the low-pressure nitrogen tank does not need to be additionally provided with a pressure transformer, so that the setting cost of the nitrogen supply system is saved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of a self-sustaining high-performance nitrogen supply system according to the present utility model;

fig. 2 is a sectional view of a part of the structure of the regulating control valve 5 and the pressure release pipe 7.

In the figure: 1. a nitrogen making machine; 2. a low pressure nitrogen tank; 3. a high pressure nitrogen tank; 4. a supercharger; 5. adjusting a control valve; 501. a pneumatic top chamber; 502. a spring top cavity; 51. sealing the cavity; 52. moving the piston; 53. a return spring; 54. a controller; 541. a signal transceiver; 542. a switch plug rod; 543. starting a switch; 544. stopping the switch; 55. extruding the sleeve; 56. a linkage rod; 6. monitoring a tube; 7. a pressure relief tube; 8. a linkage valve; 81. a fixed clamping plate; 82. a return spring; 83. and (5) movably sealing the door.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 and 2, a self-operated high-efficiency nitrogen supply system comprises a nitrogen generator 1, a low-pressure nitrogen tank 2, a high-pressure nitrogen tank 3, a booster 4 and an adjusting control valve 5, wherein the nitrogen generator 1 is communicated with the low-pressure nitrogen tank 2, the nitrogen generator 1 utilizes purified compressed air to prepare nitrogen, and when the nitrogen generator 1 produces nitrogen with surplus, the surplus nitrogen is temporarily stored by the low-pressure nitrogen tank 2.

The regulating control valve 5 is arranged on the low-pressure nitrogen tank 2, and the regulating control valve 5 is communicated with the inside of the low-pressure nitrogen tank 2 through the monitoring pipe 6. The regulating control valve 5 comprises a sealing cavity 51, a movable piston 52 and a return spring 53, wherein the movable piston 52 is movably arranged inside the sealing cavity 51 and divides the sealing cavity 51 into two independent sealed spaces of a pneumatic top cavity 501 and a spring top cavity 502, and the monitoring pipe 6 is connected with the pneumatic top cavity 501 so that the pneumatic pressure in the pneumatic top cavity 501 is the same as the pneumatic pressure in the low-pressure nitrogen tank 2.

The two ends of the return spring 53 are respectively connected with the movable piston 52 and the inner wall of the sealing cavity 51, and after the air pressure in the low-pressure nitrogen tank 2 is increased, the movable piston 52 is pushed to compress the return spring 53 until the return force generated by the compression of the return spring 53 is balanced with the air pressure in the air pressure top cavity 501.

The controller 54 is installed in the spring top cavity 502, the movable piston 52 moves towards the controller 54 after the air pressure in the low-pressure nitrogen tank 2 rises, the controller 54 comprises a signal transceiver 541 fixedly installed in the spring top cavity 502, a switch inserting rod 542 is installed on one side of the signal transceiver 541, which faces the movable piston 52, a start switch 543 and a stop switch 544 are installed on the outer side of the switch inserting rod 542 respectively, and the start switch 543 is closer to the signal transceiver 541 than the stop switch 544 is. The signal transceiver 541 is electrically connected to the supercharger 4, and when the start switch 543 and the stop switch 544 are simultaneously pressed, the signal transceiver 541 controls the supercharger 4 to start, and when the start switch 543 and the stop switch 544 are simultaneously released, the signal transceiver 541 controls the supercharger 4 to close; when the stop switch 544 is pressed first and the start switch 543 is not pressed, the supercharger 4 is turned off, and when the start switch 543 is released first and the stop switch 544 is still pressed, the supercharger 4 is kept running.

The movable piston 52 is provided with a squeezing sleeve 55 towards one side of the spring top cavity 502, the squeezing sleeve 55 is in butt joint with the switch inserting rod 542, the inner diameter of the squeezing sleeve 55 is identical to the outer diameter of the switch inserting rod 542, the switch inserting rod 542 is inserted into the squeezing sleeve 55 when the movable piston 52 moves towards the controller 54, and one ends of the start switch 543 and the stop switch 544 towards the squeezing sleeve 55 are provided with sharp corners, so that the squeezing sleeve 55 sequentially squeezes and presses the start switch 543 and the stop switch 544 in the process of inserting the switch inserting rod 542.

The booster 4 is respectively communicated with the low-pressure nitrogen tank 2 and the high-pressure nitrogen tank 3, after the internal air pressure of the low-pressure nitrogen tank 2 is increased, the piston 52 is moved to push the extrusion sleeve 55 to rise, when the internal air pressure of the low-pressure nitrogen tank 2 is increased to M, the extrusion sleeve 55 is raised to press down the start switch 543 and the stop switch 544, at this time, the booster 4 is started to boost the residual nitrogen and convey the residual nitrogen into the high-pressure nitrogen tank 3, the high-pressure nitrogen tank 3 is provided with a pressure transformer, and after the air pressure in the high-pressure nitrogen tank 3 reaches a preset value, the booster 4 is fed back to stop the booster 4.

The low-pressure nitrogen tank 2 and the high-pressure nitrogen tank 3 are communicated through the pressure relief pipe 7, a linkage rod 56 is installed on one side, facing the pneumatic top cavity 501, of the movable piston 52, the linkage rod 56 penetrates through the pneumatic top cavity 501 and is inserted into the pressure relief pipe 7, and the linkage rod 56 can synchronously move along with the movable piston 52.

Install linkage valve 8 in the pressure release pipe 7, linkage valve 8 includes fixed splint 81, back top spring 82 and activity seal door 83, activity seal door 83 sets up in gangbar 56 end position, the both ends of back top spring 82 respectively with activity seal door 83 and pressure release pipe 7 inner wall connection, fixed splint 81 are fixed to be set up inside pressure release pipe 7, activity seal door 83 sets up between fixed splint 81, back top spring 82 can be with the ejecting fixed splint 81 of activity seal door 83 part when being in normal length, fixed splint 81 and by the ejecting activity seal door 83 all hug closely with pressure release pipe 7 inner wall to with the inside shutoff of pressure release pipe 7.

When the air pressure in the low-pressure nitrogen tank 2 drops, the movable piston 52 is pushed by the return spring 53 to be far away from the controller 54, and the linkage rod 56 is driven to press the movable sealing door 83 into the fixed clamping plate 81, so that the pressure release pipe 7 is opened and ventilated, high-pressure nitrogen in the high-pressure nitrogen tank 3 is supplemented into the low-pressure nitrogen tank 2, and the stable air pressure in the low-pressure nitrogen tank 2 is maintained.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the connection may be mechanical connection, direct connection or indirect connection through an intermediate medium, and may be internal connection of two elements or interaction relationship of two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The control mode of the utility model is automatically controlled by the controller, the control circuit of the controller can be realized by simple programming of a person skilled in the art, the supply of power also belongs to common knowledge in the art, and the utility model is mainly used for protecting a mechanical device, so the utility model does not explain the control mode and circuit connection in detail.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a high-efficient nitrogen supply system of self-operated, includes nitrogen generator (1), low pressure nitrogen gas jar (2), high pressure nitrogen gas jar (3), booster compressor (4) and governing control valve (5), nitrogen generator (1) are linked together with low pressure nitrogen gas jar (2), booster compressor (4) communicate low pressure nitrogen gas jar (2) and high pressure nitrogen gas jar (3) respectively, its characterized in that:

the regulating control valve (5) is communicated with the low-pressure nitrogen tank (2) through a monitoring pipe (6), the regulating control valve (5) comprises a sealing cavity (51), a movable piston (52) and a return spring (53), the movable piston (52) is movably arranged in the sealing cavity (51), two ends of the return spring (53) are respectively connected with the movable piston (52) and the inner wall of the sealing cavity (51), a controller (54) is arranged on one side, far away from the movable piston (52), of the return spring (53), and the controller (54) is electrically connected with the supercharger (4);

the low-pressure nitrogen tank (2) and the high-pressure nitrogen tank (3) are communicated through a pressure relief pipe (7), a linkage rod (56) is arranged on one side, opposite to the return spring (53), of the movable piston (52), the linkage rod (56) is inserted into the pressure relief pipe (7), and a linkage valve (8) is arranged in the pressure relief pipe (7).

2. A self-contained high performance nitrogen supply system as recited in claim 1 wherein: the movable piston (52) divides the sealing cavity (51) into an air pressure top cavity (501) and a spring top cavity (502) which are independent sealing spaces, the monitoring tube (6) is connected with the air pressure top cavity (501), and the controller (54) is arranged in the spring top cavity (502).

3. A self-contained high efficiency nitrogen supply system as defined in claim 2 wherein: the spring top cavity (502) is internally provided with an extrusion sleeve (55), one end of the extrusion sleeve (55) is connected with the movable piston (52), the controller (54) comprises a signal transceiver (541), a switch inserting rod (542), a start switch (543) and a stop switch (544), the switch inserting rod (542) can be oppositely inserted with the extrusion sleeve (55), and the switch inserting rod (542) is connected with the signal transceiver (541).

4. A self-contained, high-performance nitrogen supply system as recited in claim 3, wherein: the outside of switch inserted link (542) is installed start switch (543) and stop switch (544) respectively, start switch (543) is closer to signal transceiver (541) than stop switch (544) sets up.

5. A self-contained high performance nitrogen supply system as recited in claim 1 wherein: the linkage valve (8) comprises a fixed clamping plate (81), a return top spring (82) and a movable sealing door (83), wherein the movable sealing door (83) is arranged at the end position of a linkage rod (56), two ends of the return top spring (82) are respectively connected with the movable sealing door (83) and the inner wall of a pressure relief pipe (7), the return top spring (82) can eject the movable sealing door (83) to the fixed clamping plate (81) when the return top spring (82) is in a normal length, and the fixed clamping plate (81) and the ejected movable sealing door (83) are tightly attached to the inner wall of the pressure relief pipe (7).