CN221054785U - Liquefied natural gas cylinder supercharging device for vehicle - Google Patents

Abstract

The utility model relates to the technical field of natural gas cylinders and discloses a pressurizing device for an automobile liquefied natural gas cylinder, which comprises a stabilizing block, wherein the inner wall of the stabilizing block is connected with a fixed block in a sliding manner, the inner wall of the stabilizing block is provided with a sliding groove, the inner wall of the stabilizing block is connected with pushing columns in a sliding manner, one side close to the two pushing columns is fixedly connected with a limiting column, the inner wall of the stabilizing block is fixedly connected with a spring, and the inner wall of the limiting column is connected with a movable rod in a rotating manner. According to the utility model, the valve core in the pressurizing valve is prevented from being damaged by facilitating the disassembly, replacement and maintenance of the manual pressurizing valve, the pressurizing efficiency of the vehicle liquefied natural gas cylinder pressurizing device is improved, and the gas leakage of the joint of the liquefied natural gas cylinder and the pressurizing valve in a pressurizing state is prevented by facilitating the connection of the liquefied natural gas cylinder and the pressurizing valve manually, so that the gas tightness of the vehicle liquefied natural gas cylinder pressurizing device is improved.

Description

Liquefied natural gas cylinder supercharging device for vehicle

Technical Field

The utility model relates to the technical field of natural gas cylinders, in particular to a pressurizing device for an automobile liquefied natural gas cylinder.

Background

Liquefied natural gas cylinders for vehicles are a special type of container for storing and transporting liquefied natural gas. LNG is produced by cooling natural gas to an extremely low temperature and bringing it into a liquid state, and LNG cylinders for vehicles are generally made of a high-strength material such as steel or a composite material, and are mainly used to supply fuel for automobiles or other vehicles. The use of LNG as a fuel provides higher energy density and is cleaner than conventional gasoline or diesel fuel, reducing exhaust emissions and environmental pollution, and the primary reason that a vehicle LNG cylinder requires a pressurizing device is that LNG is in a very low temperature and low pressure state in a storage state and cannot be directly supplied to an engine or a fuel system for use, so LNG is drawn from the cylinder and pressurized to a pressure level suitable for the engine needs using the pressurizing device to achieve efficient combustion and power output.

Through searching, the prior Chinese patent publication number is: CN216447026U, which provides a liquefied natural gas cylinder self-pressurization system, by comprising: the LNG gas cylinder is connected with the vaporizer pipe, the vaporizer is connected with the gas pressurizing device pipe, the gas pressurizing device is connected with the LNG gas cylinder pipe, the gas pressurizing device can monitor the air pressure value in the LNG gas cylinder in real time, pressurizes natural gas transmitted from the vaporizer when the air pressure value is smaller than a preset threshold value, and stops pressurizing the natural gas transmitted from the vaporizer when the air pressure value is larger than or equal to the preset threshold value.

Although the patent above installs the gas pressurizing device on the traditional LNG cylinder and continuously transmits the pressurized gas into the original LNG cylinder, the purpose of pressurizing the LNG cylinder is achieved in this way, and the problem of insufficient transmission pressure when the traditional LNG cylinder only transmits natural gas to the gas engine by the pressure in the LNG cylinder is effectively solved; by installing the pressure sensor and the temperature sensor in the LNG cylinder, the real-time monitoring of the environment in the LNG cylinder can be effectively realized, and the monitoring result is transmitted to the controller, so that the controller can control the start and stop of the booster pump; through the setting of buffering gas bomb, can effectually realize temporarily storing the natural gas after the gasification to guaranteed the stability of booster pump extraction natural gas, but foretell liquefied natural gas bottle is from pressure boost system still has following problem: the device liquefied natural gas cylinder is last pressure valve integrated structure, when need overhauling the pressure valve inside, often need the staff dismantle a plurality of screws and dismantle the valve body, but so the dismantlement of a plurality of screws just is very consuming time, and the screw that dismantles just takes place the condition of losing easily, has increased staff's work burden to a certain extent.

To solve the above problems, a pressurizing device for a liquefied natural gas cylinder for a vehicle is provided.

Disclosure of utility model

In order to make up for the defects, the utility model provides a pressurizing device for a liquefied natural gas cylinder for a vehicle, and aims to solve the problems that in the prior art, a pressurizing valve is not convenient to disassemble and overhaul manually, and gas leakage occurs in the joint of the liquefied natural gas cylinder and the pressurizing valve in the pressurizing state.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a vehicle liquefied natural gas bottle supercharging device, includes the steady block, the inner wall sliding connection of steady block has the fixed block, the spout has been seted up to the inner wall of steady block, the inner wall sliding connection of steady block pushes away the post, two the equal fixedly connected with spacing post in nearly one side of pushing away the post, the inner wall fixedly connected with spring of steady block, the inner wall rotation of spacing post is connected with the movable rod, the outer wall rotation of movable rod is connected with the lock post, the spacing groove has been seted up to the inner wall of fixed block, the front side of fixed block is provided with seal assembly.

As a further description of the above technical solution: the lock column slides to the inner wall of the stabilizing block, so that the pressurizing device is convenient to detach, replace and overhaul, and the working efficiency of the pressurizing device is improved.

Further, seal assembly includes erection column, installation piece, two equal fixed connection of erection column is at the front side of fixed block, the recess has been seted up to the inner wall of erection column, and is a plurality of the installation piece all sets up in the inslot of recess, and is a plurality of the equal fixedly connected with sealing ring of front side of installation piece, the front side fixedly connected with connecting pipe of sealing ring, the outer wall of connecting pipe is provided with sealed the pad, two equal sliding connection in looks far away from one side of sealed pad has the conveyer pipe, the outer wall fixedly connected with of connecting pipe a plurality of mount pad, the inner wall rotation of mount pad is connected with the bull stick, the bottom fixedly connected with fixed pin of bull stick, the mounting groove has been seted up to the inner wall of bull stick, the inner wall detachable of mount pad is connected with the bolt.

As a further description of the above technical solution: through cooperation between structures such as seal gasket of seal assembly, prevent to reveal in the gas transportation's in-process.

Further, the bottom fixedly connected with liquefied natural gas cylinder body of stable piece, the outer wall of liquefied natural gas cylinder body rotates and is connected with solid fixed ring, gu fixed ring's bottom rotates and is connected with the mounting bracket, the inner wall fixedly connected with pressure boost gas cylinder of fixed block, the equal fixedly connected with barometer in top left and right sides of fixed block, the top fixedly connected with sensor of fixed block.

As a further description of the above technical solution: the temperature and pressure of the LNG are monitored by sensors to ensure that the system is in safe and efficient operation.

Further, the liquefied natural gas cylinder body is arranged on the inner wall of the mounting frame.

As a further description of the above technical solution: the liquefied natural gas cylinder body is fixed on the inner wall of the mounting frame, so that the liquefied natural gas cylinder body is conveniently mounted on a vehicle.

Further, two the movable rod is all rotated and is connected at the inner wall of stable piece, two the spacing post all sets up in the inslot of spout, two the equal sliding connection of pushing away the post is at the inner wall of stable piece.

As a further description of the above technical solution: the movable rod is limited through the inner wall of the stabilizing block, and the two ends of the movable rod are prevented from being deviated in the telescopic process when rotating.

Further, the two springs are fixedly connected to one side close to the limiting column, and the two locking columns are arranged in the limiting groove.

As a further description of the above technical solution: the spring is fixed on one side close to the limit post, so that the spring can be prevented from torsion spring phenomenon in the extrusion process.

Further, the inner wall of the sealing ring is attached to the inner wall of the mounting column, and the bolts are arranged in the grooves of the mounting groove.

As a further description of the above technical solution: the inner wall through the sealing ring is attached with the inner wall of the mounting column, so that the air tightness of the pressurized air bottle during gas conveying is further enhanced.

Further, a plurality of fixed pins are all connected to the inner wall of the conveying pipe in a sliding mode, a plurality of fixed pins are all connected to the inner wall of the connecting pipe in a sliding mode, and the conveying pipe is connected to the outer wall of the connecting pipe in a sliding mode.

As a further description of the above technical solution: the connecting pipe and the inner wall of the conveying pipe are inserted through the fixing pin, then the bolt is screwed into the inner wall of the mounting seat, and the connecting pipe is prevented from being ejected out of the inner wall of the conveying pipe due to overlarge pressure when the connecting pipe and the conveying pipe convey gas.

The utility model has the following beneficial effects:

1. According to the utility model, through the mutual matching of the structures such as the sliding groove, the pushing post, the limiting post, the spring, the movable rod, the locking post and the limiting groove, the manual pressurizing valve is convenient to detach, replace and overhaul, the valve core in the pressurizing valve is prevented from being damaged, and the pressurizing efficiency of the pressurizing device for the liquefied natural gas cylinder for the vehicle is improved.

2. According to the utility model, through the mutual matching of the structures such as the sealing ring, the connecting pipe, the conveying pipe, the sealing gasket, the mounting seat, the rotating rod, the fixing pin, the mounting groove, the bolt and the like, the liquefied natural gas cylinder is manually connected with the pressurizing valve conveniently, the gas leakage at the joint of the liquefied natural gas cylinder and the pressurizing valve in a pressurizing state is prevented, and the air tightness of the pressurizing device of the liquefied natural gas cylinder for the vehicle is improved.

Drawings

Fig. 1 is a schematic diagram of a front view mounting frame of a pressurizing device for an automobile liquefied natural gas cylinder;

FIG. 2 is a schematic diagram of a cross-sectional structure of a spring part of a pressurization device for a liquefied natural gas cylinder for a vehicle according to the present utility model;

FIG. 3 is a schematic diagram of a sensor part of a pressurization device for a liquefied natural gas cylinder for a vehicle according to the present utility model;

FIG. 4 is a schematic diagram of a partially exploded structure of a pressurized gas cylinder of a pressurized device for a liquefied natural gas cylinder for a vehicle according to the present utility model;

FIG. 5 is an enlarged view of FIG. 4 at A;

Fig. 6 is a schematic diagram of a cross-sectional structure of a sealing gasket part of a pressurizing device for an lng cylinder for a vehicle according to the present utility model.

Legend description:

1. A liquefied natural gas cylinder body; 2. a mounting frame; 3. a fixing ring; 4. a stabilizing block; 5. a fixed block; 6. a pressurized gas cylinder; 7. an air pressure gauge; 8. a sensor; 9. a chute; 10. pushing a column; 11. a limit column; 12. a spring; 13. a movable rod; 14. locking a column; 15. a limit groove; 16. a mounting column; 17. a groove; 18. a mounting block; 19. a seal ring; 20. a connecting pipe; 21. a delivery tube; 22. a sealing gasket; 23. a mounting base; 24. a rotating rod; 25. a fixing pin; 26. a mounting groove; 27. and (5) a bolt.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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. 1-3, one embodiment provided by the present utility model is: the utility model provides a vehicle liquefied natural gas bottle supercharging device, including stabilizer 4, stabilizer 4's inner wall sliding connection has fixed block 5, spout 9 has been seted up to stabilizer 4's inner wall, stabilizer 4's inner wall sliding connection has push post 10, two equal fixedly connected with spacing post 11 of nearly one side of push post 10, stabilizer 4's inner wall fixedly connected with spring 12, spacing post 11's inner wall rotation is connected with movable rod 13, movable rod 13's outer wall rotation is connected with lock post 14, spacing groove 15 has been seted up to fixed block 5's inner wall, fixed block 5's front side is provided with seal assembly, stabilizer 4's bottom fixedly connected with liquefied natural gas bottle body 1, liquefied natural gas bottle body 1's outer wall rotation is connected with solid fixed ring 3, gu fixed ring 3's bottom rotation is connected with mounting bracket 2, gu fixed block 5's inner wall fixedly connected with pressurized gas bottle 6, gu fixed block 5's top left and right sides all fixedly connected with barometer 7, gu top fixedly connected with sensor 8, liquefied natural gas bottle body 1 sets up at mounting bracket 2's inner wall.

Specifically, through installing liquefied natural gas cylinder body 1 at the inner wall top of mounting bracket 2, thereby it is fixed with liquefied natural gas cylinder body 1 through rotating solid fixed ring 3, simultaneously mounting bracket 2 is convenient with liquefied natural gas cylinder body 1 install on the vehicle, then install stabilizing block 4 at the outer wall top of liquefied natural gas cylinder body 1, thereby the staff is through promoting pushing post 10, and then the spacing post 11 that pushing post 10 connects removes, and then under the extrusion of spring 12, further make movable rod 13 pivoted in-process flexible, movable rod 13 rotates around the fulcrum at the inner wall of stabilizing block 4 simultaneously, thereby both sides of movable rod 13 can stretch out and draw back, then movable rod 13 rotates and slides lock post 14 to stabilizing block 4's inner wall, thereby accomplish the dismantlement to fixed block 5, thereby be convenient for manual pressurization valve dismantle change and overhaul, and then fixed block 5's inner wall is provided with pressure boost cylinder 6, thereby be used for pressurizing liquefied natural gas cylinder body 1, thereby can observe numerical value on barometer 7, then sensor 8 can monitor LNG's temperature and pressure, in order to ensure that the system is in safe and effective operating condition.

Referring to fig. 2-3, two movable rods 13 are all rotatably connected to the inner wall of the stabilizing block 4, two limiting columns 11 are all arranged in the groove of the sliding groove 9, two pushing columns 10 are all slidably connected to the inner wall of the stabilizing block 4, two springs 12 are all fixedly connected to one side close to the limiting columns 11, and two locking columns 14 are arranged in the groove of the limiting groove 15.

Specifically, the inner wall through the stable piece 4 carries out spacingly to movable rod 13, thereby can prevent that movable rod 13 both sides from taking place the skew at flexible in-process, through spacing post 11 at the inslot directional movement of spout 9, prevent that spacing post 11 from taking place the skew at the in-process that removes, slide through pushing away post 10 at the inner wall of stable piece 4, can prevent that gliding in-process from taking place to rock, through fixing spring 12 in the close one side of spacing post 11, prevent spring 12 at extruded in-process torsional spring phenomenon, simultaneously through lock post 14 at the inslot directional movement of spacing groove 15, can dismantle fixed block 5, and then the convenience is manual to change the maintenance to pressurized gas cylinder 6.

Referring to fig. 3-6, the seal assembly includes mounting posts 16, mounting blocks 18, the front side at fixed block 5 is all fixed connection to two mounting posts 16, recess 17 has been seted up to the inner wall of mounting post 16, a plurality of mounting blocks 18 all set up in the inslot of recess 17, the front side of a plurality of mounting blocks 18 all fixedly connected with sealing ring 19, the front side fixedly connected with connecting pipe 20 of sealing ring 19, the outer wall of connecting pipe 20 is provided with sealed pad 22, the equal sliding connection of looks far side of two sealed pads 22 has conveyer pipe 21, the outer wall fixedly connected with of connecting pipe 20 is a plurality of mount pad 23, the inner wall rotation of mount pad 23 is connected with bull stick 24, the bottom fixedly connected with fixed pin 25 of bull stick 24, mounting groove 26 has been seted up to the inner wall of bull stick 24, the inner wall detachable of mount pad 23 is connected with bolt 27.

Specifically, the groove 17 is formed in the inner wall of the mounting column 16, so that a plurality of mounting blocks 18 on the sealing ring 19 are mounted in the groove of the groove 17, then the sealing ring 19 is tightly attached to the inner wall of the mounting column 16, meanwhile, the sealing ring 19 can clean the pressurized gas cylinder 6, the service life of the pressurized gas cylinder 6 is prolonged, then the sealing gasket 22 is mounted on the inclined surface of the outer wall of the connecting pipe 20 at the front side of the sealing ring 19, then the connecting pipe 20 is inserted into the inner wall of the conveying pipe 21, the sealing gasket 22 is arranged in a gap between the connecting pipe 20 and the conveying pipe 21, then the rotating rod 24 on the inner wall of the mounting seat 23 is rotated, the rotating rod 24 is inserted into the inner wall of the connecting pipe 20 and the conveying pipe 21, the bolt 27 is further mounted in the groove of the mounting groove 26, then the inner wall of the mounting seat 23 is screwed up by the bolt 27, the connecting pipe 20 and the conveying pipe 21 are prevented from being ejected out of the inner wall of the conveying pipe 21 due to overlarge pressure when the connecting pipe 20 and the conveying pipe 21 are conveyed, meanwhile, the air leakage of the pressurizing device is prevented, and the air tightness of the pressurizing device is improved.

Referring to fig. 4 to 6, the inner wall of the sealing ring 19 is attached to the inner wall of the mounting post 16, the bolts 27 are disposed in the grooves of the mounting grooves 26, the plurality of fixing pins 25 are slidably connected to the inner wall of the delivery pipe 21, the plurality of fixing pins 25 are slidably connected to the inner wall of the connection pipe 20, and the delivery pipe 21 is slidably connected to the outer wall of the connection pipe 20.

Specifically, can prevent through sealing ring 19 that pressurized gas cylinder 6 from leaking gas at the in-process of conveying gas, improved pressurized gas cylinder 6's gas tightness, insert the inslot of mounting groove 26 with bolt 27 simultaneously, and then with bull stick 24 threaded connection at the mount pad 23 inner wall, through a fixed connecting pipe 20 and conveyer pipe 21, through the bull stick 24 of rotating the mount pad 23 inner wall, thereby the fixed pin 25 of bull stick 24 bottom inserts the inner wall of connecting pipe 20 and conveyer pipe 21, further strengthened automobile-used liquefied natural gas cylinder supercharging device's gas tightness, insert the inner wall of conveyer pipe 21 through connecting pipe 20, the gap between connecting pipe 20 and conveyer pipe 21 is sealed to the pad 22 simultaneously, can prevent to take place to leak in-process of conveying gas.

Working principle: the staff installs the liquefied natural gas cylinder body 1 at the inner wall top of the installation frame 2, thereby fix the liquefied natural gas cylinder body 1 through rotating the fixed ring 3, simultaneously the installation frame 2 is convenient to install the liquefied natural gas cylinder body 1 on the vehicle, then install the stabilizing block 4 at the outer wall top of the liquefied natural gas cylinder body 1, thereby the staff moves through pushing the pushing post 10, and then the spacing post 11 connected with the pushing post 10, and then under the extrusion of the spring 12, further make the movable rod 13 rotate in the process of rotating, simultaneously the movable rod 13 rotates around the fulcrum at the inner wall of the stabilizing block 4, thereby the both sides of the movable rod 13 can stretch out and draw back, then the movable rod 13 rotates and slides the locking post 14 to the inner wall of the stabilizing block 4, thereby accomplishing the disassembly of the fixed block 5, thereby the manual pressurization valve is convenient for disassembly, replacement and overhaul, the inner wall of the fixing block 5 is further provided with a pressurized gas cylinder 6 for pressurizing the liquefied natural gas cylinder body 1, so that the value can be observed on the barometer 7, then the sensor 8 can monitor the temperature and pressure of LNG to ensure that the system is in a safe and effective working state, a worker will set up the groove 17 in the inner wall of the mounting post 16, thereby installing the plurality of mounting blocks 18 on the sealing ring 19 in the groove 17, then tightly attaching the sealing ring 19 to the inner wall of the mounting post 16, simultaneously cleaning the pressurized gas cylinder 6 by the sealing ring 19, improving the service life of the pressurized gas cylinder 6, then installing the sealing gasket 22 on the inclined surface of the outer wall of the connecting pipe 20 at the front side of the sealing ring 19, then inserting the connecting pipe 20 into the inner wall of the conveying pipe 21, thereby sealing the gap between the connecting pipe 20 and the conveying pipe 21, then rotating the rotating rod 24 of the inner wall of the mounting seat 23, thereby insert connecting pipe 20 and the inner wall of conveyer pipe 21 with bull stick 24, further install bolt 27 in the inslot of mounting groove 26, and then screw up the inner wall of mount pad 23 with bolt 27, prevent connecting pipe 20 and conveyer pipe 21 when carrying gas that pressure is too big from ejecting connecting pipe 20 from conveyer pipe 21 inner wall, prevent supercharging device gas leakage simultaneously, improved supercharging device's gas tightness.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims (8)

1. The utility model provides a liquefied natural gas bottle supercharging device for automobile, includes stable piece (4), its characterized in that: the inner wall sliding connection of stable piece (4) has fixed block (5), spout (9) have been seted up to the inner wall of stable piece (4), the inner wall sliding connection of stable piece (4) pushes away post (10), two the equal fixedly connected with spacing post (11) of nearly one side of pushing away post (10), the inner wall fixedly connected with spring (12) of stable piece (4), the inner wall rotation of spacing post (11) is connected with movable rod (13), the outer wall rotation of movable rod (13) is connected with lock post (14), spacing groove (15) have been seted up to the inner wall of fixed block (5), the front side of fixed block (5) is provided with seal assembly.

2. The liquefied natural gas cylinder pressurizing device for a vehicle according to claim 1, wherein: seal assembly includes erection column (16), installation piece (18), two equal fixed connection of erection column (16) is in the front side of fixed block (5), recess (17) are seted up to the inner wall of erection column (16), a plurality of installation piece (18) all set up in the inslot of recess (17), a plurality of equal fixedly connected with sealing ring (19) of front side of installation piece (18), the front side fixedly connected with connecting pipe (20) of sealing ring (19), the outer wall of connecting pipe (20) is provided with sealed pad (22), two equal sliding connection in looks far away side of sealed pad (22) has conveyer pipe (21), the outer wall fixedly connected with a plurality of mount pad (23) of connecting pipe (20), the inner wall rotation of mount pad (23) is connected with bull stick (24), the bottom fixedly connected with fixed pin (25) of bull stick (24), mounting groove (26) are seted up to the inner wall of bull stick (24), the inner wall detachable connection of mount pad (23) has bolt (27).

3. The liquefied natural gas cylinder pressurizing device for a vehicle according to claim 1, wherein: the bottom fixedly connected with liquefied natural gas bottle body (1) of stable piece (4), the outer wall of liquefied natural gas bottle body (1) rotates and is connected with solid fixed ring (3), the bottom of solid fixed ring (3) rotates and is connected with mounting bracket (2), the inner wall fixedly connected with pressure boost gas cylinder (6) of fixed block (5), the equal fixedly connected with barometer (7) in the top left and right sides of fixed block (5), the top fixedly connected with sensor (8) of fixed block (5).

4. A liquefied natural gas cylinder pressurizing apparatus for a vehicle according to claim 3, wherein: the liquefied natural gas cylinder body (1) is arranged on the inner wall of the mounting frame (2).

5. The liquefied natural gas cylinder pressurizing device for a vehicle according to claim 1, wherein: two movable rods (13) are both rotationally connected to the inner wall of the stabilizing block (4), two limit posts (11) are both arranged in grooves of the sliding groove (9), and two push posts (10) are both slidingly connected to the inner wall of the stabilizing block (4).

6. The liquefied natural gas cylinder pressurizing device for a vehicle according to claim 1, wherein: the two springs (12) are fixedly connected to one side close to the limiting column (11), and the two locking columns (14) are arranged in the limiting groove (15).

7. The liquefied natural gas cylinder pressurizing device for a vehicle according to claim 2, wherein: the inner wall of the sealing ring (19) is attached to the inner wall of the mounting column (16), and the bolts (27) are arranged in the grooves of the mounting grooves (26).

8. The liquefied natural gas cylinder pressurizing device for a vehicle according to claim 2, wherein: the fixing pins (25) are all connected to the inner wall of the conveying pipe (21) in a sliding mode, the fixing pins (25) are all connected to the inner wall of the connecting pipe (20) in a sliding mode, and the conveying pipe (21) is connected to the outer wall of the connecting pipe (20) in a sliding mode.