CN212776771U

CN212776771U - Shelf type LNG gas cylinder vacuumizing device

Info

Publication number: CN212776771U
Application number: CN202020421776.1U
Authority: CN
Inventors: 章宇庆; 林瑞进; 周炳水
Original assignee: China United Engineering Corp Ltd
Current assignee: China United Engineering Corp Ltd
Priority date: 2020-03-28
Filing date: 2020-03-28
Publication date: 2021-03-23
Anticipated expiration: 2030-03-28

Abstract

The utility model provides a shelf formula LNG gas cylinder evacuating device, structural design is reasonable, area is little, output is high. The air outlet of the combustion device is connected with an air outlet pipeline, the air inlet is connected with an air inlet pipeline, and the air inlet pipeline and the air outlet pipeline are both arranged in the oven; one end of the vacuumizing pipeline is connected with the vacuumizing unit, and the other end of the vacuumizing pipeline penetrates into the oven; the vacuumizing pipeline is connected with a vacuumizing hose; the oven is placed on the oven placing area; the lower cross beam is arranged on the ground, and the upper cross beam is arranged at the top end of the steel platform; the walking wheels at the upper end of the frame are connected with the upper cross beam, and the walking wheels at the lower end of the frame are connected with the lower cross beam; the horizontal walking motor is arranged on the frame and is connected with the walking wheels; the cargo platform is arranged on the rack in a lifting way; the lifting mechanism is connected with the cargo carrying platform; the cargo fork is arranged on the cargo carrying platform; the goods shelf is arranged in the oven; the walking track is horizontally fixed on the oven, and the gate is horizontally and slidably mounted on the walking track.

Description

Shelf type LNG gas cylinder vacuumizing device

Technical Field

The utility model relates to a shelf formula LNG gas cylinder evacuating device.

Background

Cryogenic insulation gas cylinders, i.e., LNG gas cylinders, are widely used for storage and transportation of liquefied natural gas. In order to ensure a good heat preservation effect, an interlayer between the shell and the inner container of the LNG cylinder needs to be vacuumized. In order to obtain high vacuum of the jacket, the gas adsorbed on the metal surface in the interlayer and the multi-layer heat insulating material outside the liner must be released and pumped away as soon as possible. Need heat the interlayer inner and outer wall when vacuumizing, consequently consider to put into the oven with the LNG gas cylinder. However, the gas adsorbed on the metal surface and the multi-layer heat-insulating material is slowly released, so that the whole LNG cylinder vacuumizing process is long in time, namely about 7-8 days. The traditional LNG gas cylinder vacuumizing mode is that the gas cylinder is placed on the bracket, then the bracket is transported to the oven by the trolley, and the gas cylinder is heated and vacuumized after being manually connected with a pipe. In order to save workshop land, the oven is carried out in a mode of a lifting door. However, because the vacuumizing time is long, in order to improve the product yield, the oven needs to be arranged by occupying a large workshop area, so that the LNG gas cylinder vacuumizing is the bottleneck of mass production of the LNG gas cylinders, especially for manufacturers in built workshops, the workshop area is fixed, and the productivity is also fixed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a shelf formula LNG gas cylinder evacuating device that structural design is reasonable, area is little, output is high.

The utility model provides a technical scheme that above-mentioned problem adopted is: a shelf type LNG gas cylinder vacuumizing device comprises an oven, a combustion system, a vacuumizing unit and a vacuumizing pipeline; the combustion system is connected with the oven and comprises a combustion device, an air inlet pipeline and an air outlet pipeline, an air outlet of the combustion device is connected with the air outlet pipeline, an air inlet is connected with the air inlet pipeline, and the air inlet pipeline and the air outlet pipeline are both arranged in the oven; one end of the vacuumizing pipeline is connected with the vacuumizing unit, and the other end of the vacuumizing pipeline penetrates into the oven; the vacuumizing pipeline is connected with a vacuumizing hose; the method is characterized in that: the stacking machine also comprises a steel platform, a stacker and a goods shelf; an oven placing area is arranged on the steel platform, and the oven placing area is at least two layers and is arranged from top to bottom; the oven is placed on the oven placing area; the stacker is arranged beside the oven and comprises a lower cross beam, an upper cross beam, a horizontal travelling mechanism, a lifting mechanism, a cargo carrying table, a cargo carrying fork and a rack; the lower cross beam is arranged on the ground, and the upper cross beam is arranged at the top end of the steel platform; the horizontal walking mechanism comprises a horizontal walking motor and walking wheels; the upper group and the lower group of the traveling wheels are respectively arranged at the upper end and the lower end of the frame; the walking wheels at the upper end of the frame are connected with the upper cross beam, and the walking wheels at the lower end of the frame are connected with the lower cross beam; the horizontal walking motor is arranged on the frame and is connected with the walking wheels; the cargo platform is arranged on the rack in a lifting way; the lifting mechanism is connected with the cargo carrying platform; the cargo fork is arranged on the cargo carrying platform; the goods shelf is arranged in the oven; the goods shelf is provided with a gas cylinder placing area which is at least two layers and is arranged from top to bottom; the oven is provided with a gate, a walking track and an opening and closing mechanism, the walking track is horizontally fixed on the oven, the gate is horizontally and slidably mounted on the walking track, and the opening and closing mechanism drives the gate to slide on the walking track.

The oven in be provided with the heat preservation.

The burner hanging of the utility model is arranged at the rear side of the oven.

Air inlet pipeline install at the top of oven, air-out pipeline installs the lateral wall at the oven, and the exhaust vent of air-out pipeline is located the bottom of oven.

The utility model discloses be provided with a plurality of fresh air inlets on the air-supply line, these fresh air inlets are arranged along the air-supply line in proper order.

The lifting mechanism of the utility model comprises a lifting motor, a roller and a steel wire rope; the lifting motor is installed on the rack and connected with the roller, the roller is connected with the steel wire rope, and the steel wire rope is connected with the cargo carrying platform.

The vacuum-pumping pipeline of the utility model is erected near the goods shelf.

The horizontal running mechanism of the utility model also comprises a guide wheel, the guide wheels are divided into an upper group and a lower group which are respectively arranged at the upper end and the lower end of the frame; the guide wheel at the upper end of the frame is connected with the upper cross beam, and the guide wheel at the lower end of the frame is connected with the lower cross beam.

The starting and stopping mechanism include gear motor, gear and rack, gear motor installs on the gate, the rack is installed on the walking track, the gear is installed on gear motor to with rack toothing.

A shelf type LNG cylinder vacuumizing method is characterized by comprising the following steps: the shelf-type LNG cylinder vacuumizing device comprises the following steps:

s1, transferring the NG gas cylinders from the external automation equipment to a vacuumizing material waiting area, and receiving the gas cylinders by a cargo fork of the stacker;

s2, the stacker transports the LNG gas cylinder to the front end of an idle oven, and after a gate is opened, a goods carrying fork of the stacker places the gas cylinder on a goods shelf;

s3, after the LNG gas cylinder is placed on a shelf, the vacuum-pumping hose connection can be carried out manually;

s4, respectively starting the combustion system and the vacuumizing unit according to the process requirements, and enabling the LNG cylinder to enter a vacuumizing stage;

s5, placing the LNG cylinders produced subsequently into other drying ovens by the stacker through the actions;

and S6, after the LNG gas cylinder is vacuumized, the LNG gas cylinder can be placed in a shelf to be stored according to the yield requirement, or the LNG gas cylinder is taken out by a stacker 4 and placed to a discharging position to enter the next procedure.

Compared with the prior art, the utility model, have following advantage and effect:

1. the utility model discloses except the heating evacuation that is used for the gas cylinder, still can be used to the storage and accomplish the gas cylinder of evacuation, use as the semi-manufactured goods storehouse.

2. The utility model discloses a stacker switching gas cylinder of carrying, operate steadily and fast, degree of automation is high, the precision is high, effectively satisfies the high requirement of production beat.

3. The utility model discloses utilize workshop space area, area itself is little, has effectively reduced workshop plane area, has increased product quantity, has effectively improved output.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of the embodiment of the present invention in a top view.

Fig. 3 is a schematic structural diagram of a lower portion of a stacker according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.

Referring to fig. 1-3, the utility model discloses a goods shelves formula LNG gas cylinder evacuating device includes steel platform 1, oven 2, stacker 3, goods shelves 4, combustion system 5, evacuation unit 6 and evacuation pipeline 7.

Steel platform 1 is used for supporting the whole device, is provided with the oven on the steel platform 1 and places district 11, and the oven is placed district 11 and is two-layer at least, from top to bottom sets up, can set up two-layer, three-layer or even multilayer from top to bottom according to the output demand.

Oven 2 is used for the heating heat preservation to the gas cylinder when LNG gas cylinder evacuation, and oven 2 is placed on district 11 is placed to the oven. The oven 2 is internally provided with a heat preservation layer 21.

The stacker 3 is used for receiving the LNG gas cylinders one by one from the upper end of the external automation equipment and transferring the LNG gas cylinders into the oven 2, or taking the LNG gas cylinders in the oven 2 out one by one and placing the LNG gas cylinders on the external automation equipment. The stacking machine 3 is arranged beside the oven, and one stacking machine 3 is responsible for switching and conveying the gas cylinders in the oven at the left side and the right side.

The stacker 3 comprises a lower beam 31, an upper beam 32, a horizontal travelling mechanism 33, a lifting mechanism 34, a cargo platform 35, a cargo fork 36 and a frame 37.

The lower beam 31 is mounted on the ground and the upper beam 32 is mounted on top of the steel platform 1.

The horizontal traveling mechanism 33 is used for horizontal movement of the stacker crane 3, and includes a horizontal traveling motor 331, a coupling, a brake, a speed reducer, a traveling wheel 332, and a guide wheel 333.

The traveling wheels 332 are two sets of wheels, one set being upper and the other set being lower, and are mounted to the upper and lower ends of the frame 37, respectively. The traveling wheels 332 at the upper end of the frame 37 are connected to the upper cross member 32, and the traveling wheels 332 at the lower end of the frame 37 are connected to the lower cross member 31.

The horizontal travel motor 331 is mounted on the frame 37, and is connected to the travel wheels 332 through a coupling and a speed reducer. The horizontal travel motor 331 drives the travel wheels 332 to rotate, so that the stacker 3 moves.

The guide wheels 333 are provided in two sets, one set being upper and the other set being lower, and are respectively mounted on the upper and lower ends of the frame 37. The guide wheel 333 positioned at the upper end of the frame 37 is connected to the upper cross member 32, and the guide wheel 333 positioned at the lower end of the frame 37 is connected to the lower cross member 31. The guide wheels 333 prevent lateral slip during horizontal high-speed travel.

The brake is connected to the running wheels 332 for braking.

The loading platform 35 is installed on the frame 37 in a lifting way. The cargo platform 35 is provided with a cargo shape detection device.

The lifting mechanism 34 is connected to the cargo bed 353, and is configured to drive the cargo bed 35 to move up and down, and includes a lifting motor, a brake, a speed reducer, a drum, and a wire rope. The lifting motor is installed on the frame 37, and is connected with the drum through the speed reducer, and the drum is connected with the steel wire rope, and the steel wire rope is connected with the cargo platform 353. The lifting motor drives the roller to rotate, and the roller winds or releases the steel wire rope, so that the cargo carrying platform 35 is driven to lift. The brake is connected with the cargo bed 35 for braking.

The fork 36 is mounted on the cargo bed 35, and the fork 36 is a multi-stage fork in a telescopic manner.

The shelf 4 is used for storing the gas cylinder to be vacuumized, and the shelf 4 is arranged in the oven 2. Be provided with the gas cylinder on goods shelves 4 and place district 41, the gas cylinder is placed district 41 and is two-layer at least, from top to bottom sets up, can set up the gas cylinder of the different number of layers according to the demand and place district 41 for place the gas cylinder of a certain amount. The upper, lower, left and right positions of the goods shelf 4 in the oven 3 are the same, so that the precision requirement of the stacker during transferring and conveying is ensured.

And the combustion system 5 is connected with the oven 2 and provides a heat source for heating and heat preservation of the oven 2. The combustion system 5 comprises a combustion device 51, an air inlet pipeline 52 and an air outlet pipeline 53, wherein an air outlet of the combustion device 51 is connected with the air outlet pipeline 53, and an air inlet is connected with the air inlet pipeline 52. The air inlet pipeline 52 and the air outlet pipeline 53 are both arranged in the oven 2, wherein the air inlet pipeline 52 is arranged at the top of the oven 2, the air outlet pipeline 53 is arranged on the side wall of the oven 2, and an air outlet hole of the air outlet pipeline 53 is positioned at the bottom of the oven 2; the air inlet duct 52 is provided with a plurality of air inlet openings 54, and the air inlet openings 54 are arranged in series along the air inlet duct 52. The hot air of the combustion system 5 is sent into the oven 2 through the air outlet pipeline 53 and rises from the bottom to the top of the oven 2, so that a heat source is provided for the whole oven 2, and the heating is uniform and the efficiency is high; the air at the top of the oven 2 is fed back to the burner 51 through the air inlet duct 52, thus forming a circulation. To save space, the burner 51 is mounted on the rear side of the oven 2.

The vacuum extractor unit 6 is likewise arranged on the rear side of the oven 2.

Vacuumizing unit 6 is connected to 7 one ends of evacuation pipeline, and the other end penetrates in oven 2 after passing through oven 2's heat preservation 21 to be close to the goods shelves and erect, so LNG gas cylinder is close to and shortens the evacuation pipeline, improves evacuation efficiency, improves product quality. The vacuumizing pipeline 7 is connected with a vacuumizing hose.

The rear side of the oven 2 is provided with an escape door, which is convenient for personnel to operate and safely dredge.

The oven 2 is in a vertical hinged door form and is provided with a gate 22, a traveling rail and an opening and closing mechanism, the traveling rail is horizontally fixed on the oven 2, the upper end and the lower end of the gate 22 are horizontally and slidably mounted on the traveling rail, and the opening and closing mechanism is connected with the gate 22 and drives the gate 22 to slide on the traveling rail so as to open and close the oven. The opening and closing mechanism includes a gear motor, a gear and a rack, the gear motor is installed on the gate 22, the rack is installed on the travel rail, and the gear is installed on the gear motor and meshed with the rack. The gate 22 is two, and the two gates 22 are respectively provided with a running rail and are separated independently. The gate is opened and closed by adopting a gear motor direct-coupled gear to move on a rack on the track. Two gates of the oven are controlled with the stacker in a linkage manner, so that the operation stability of opening and closing is ensured.

The shelf type LNG cylinder vacuumizing method is carried out by adopting the shelf type LNG cylinder vacuumizing device and comprises the following steps:

s1, transferring the NG gas cylinders to a vacuumizing material waiting area from external automation equipment, and receiving the gas cylinders by the cargo fork of the stacker 3;

s2, moving the stacker 3 according to the production process arrangement, transferring the LNG gas cylinders to the front end of the idle oven 2, sending a door opening signal to a gate 22 of the specified oven, and placing the gas cylinders on the goods shelf 4 according to the specified sequence of the system by the goods carrying forks of the stacker 3 after the gate 22 is opened;

s3, the stacker 3 fills the gas cylinder in the rack at the opened gate 22 in the above order, closes the gate 22, and opens the other gate 22.

S4, the stacker 3 fills the gas cylinder with the shelf at the opened gate 22 in the above order, and then closes the gate 22.

S5, after the LNG bottle is placed on the shelf 4 according to the step S2, the vacuum hose connection can be carried out manually.

And S6, after the actions of the step S4 are completed, connecting all the LNG gas cylinders with the vacuum hoses manually and basically.

And S7, respectively starting the combustion system 5 and the vacuumizing unit 6 according to the process requirements, and enabling the LNG cylinder to enter a vacuumizing stage for 7-8 days according to the process requirements.

S8, the stacker 3 places the LNG cylinders produced subsequently into other ovens according to the above actions.

S9, after the LNG gas cylinders are vacuumized, the LNG gas cylinders can be placed in a shelf to be stored according to the yield requirement, or the LNG gas cylinders are taken out by a stacker 3 and placed to a discharging position to enter the next procedure. When the stacker 3 takes the workpiece from the oven 2, the stacker also sends an opening interlocking signal to the gate 22 or 2 to perform a bottle taking action.

In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an example of the structure of the present invention. All the equivalent changes or simple changes made according to the structure, characteristics and principle of the utility model are included in the protection scope of the utility model. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. A shelf type LNG gas cylinder vacuumizing device comprises an oven, a combustion system, a vacuumizing unit and a vacuumizing pipeline; the combustion system is connected with the oven and comprises a combustion device, an air inlet pipeline and an air outlet pipeline, an air outlet of the combustion device is connected with the air outlet pipeline, an air inlet is connected with the air inlet pipeline, and the air inlet pipeline and the air outlet pipeline are both arranged in the oven; one end of the vacuumizing pipeline is connected with the vacuumizing unit, and the other end of the vacuumizing pipeline penetrates into the oven; the vacuumizing pipeline is connected with a vacuumizing hose; the method is characterized in that: the stacking machine also comprises a steel platform, a stacker and a goods shelf; an oven placing area is arranged on the steel platform, and the oven placing area is at least two layers and is arranged from top to bottom; the oven is placed on the oven placing area; the stacker is arranged beside the oven and comprises a lower cross beam, an upper cross beam, a horizontal travelling mechanism, a lifting mechanism, a cargo carrying table, a cargo carrying fork and a rack; the lower cross beam is arranged on the ground, and the upper cross beam is arranged at the top end of the steel platform; the horizontal walking mechanism comprises a horizontal walking motor and walking wheels; the upper group and the lower group of the traveling wheels are respectively arranged at the upper end and the lower end of the frame; the walking wheels at the upper end of the frame are connected with the upper cross beam, and the walking wheels at the lower end of the frame are connected with the lower cross beam; the horizontal walking motor is arranged on the frame and is connected with the walking wheels; the cargo platform is arranged on the rack in a lifting way; the lifting mechanism is connected with the cargo carrying platform; the cargo fork is arranged on the cargo carrying platform; the goods shelf is arranged in the oven; the goods shelf is provided with a gas cylinder placing area which is at least two layers and is arranged from top to bottom; the oven is provided with a gate, a walking track and an opening and closing mechanism, the walking track is horizontally fixed on the oven, the gate is horizontally and slidably mounted on the walking track, and the opening and closing mechanism drives the gate to slide on the walking track.

2. The shelf-type LNG gas cylinder evacuation device of claim 1, wherein: and a heat-insulating layer is arranged in the oven.

3. The shelf-type LNG gas cylinder evacuation device of claim 1, wherein: the wall of the combustion device is hung at the rear side of the oven.

4. The shelf-type LNG gas cylinder evacuation device of claim 1, wherein: the air inlet pipeline is arranged at the top of the oven, the air outlet pipeline is arranged on the side wall of the oven, and an air outlet hole of the air outlet pipeline is positioned at the bottom of the oven.

5. The shelf-type LNG gas cylinder evacuation device of claim 1, wherein: the air inlet pipeline is provided with a plurality of air inlet holes which are arranged in sequence along the air inlet pipeline.

6. The shelf-type LNG gas cylinder evacuation device of claim 1, wherein: the lifting mechanism comprises a lifting motor, a roller and a steel wire rope; the lifting motor is installed on the rack and connected with the roller, the roller is connected with the steel wire rope, and the steel wire rope is connected with the cargo carrying platform.

7. The shelf-type LNG gas cylinder evacuation device of claim 1, wherein: the vacuum-pumping pipeline is erected close to the goods shelf.

8. The shelf-type LNG gas cylinder evacuation device of claim 1, wherein: the horizontal travelling mechanism also comprises guide wheels, wherein the upper guide wheel and the lower guide wheel are respectively arranged at the upper end and the lower end of the rack; the guide wheel at the upper end of the frame is connected with the upper cross beam, and the guide wheel at the lower end of the frame is connected with the lower cross beam.

9. The shelf-type LNG gas cylinder evacuation device of claim 1, wherein: the opening and closing mechanism comprises a speed reducing motor, a gear and a rack, the speed reducing motor is installed on the gate, the rack is installed on the traveling track, and the gear is installed on the speed reducing motor and meshed with the rack.