Tube bundle type container for transporting high-pressure gas

Abstract

The utility model discloses a tube bundle type container for transporting high-pressure gas, which relates to the technical field of compressed gas transportation, and comprises a box body frame, a gas cylinder, a front main tube, an elastic piston component, a rear main tube, an auxiliary gas pump component and a trigger switch group, the front main pipe is arranged in the box body frame; the elastic piston assembly is arranged at the end, away from the main valve, of the front main pipe. The rear main pipe is connected to the end, close to the front main pipe, of the piston barrel. The auxiliary air pump assembly is arranged between the front main pipe and the rear main pipe. When high-pressure gas enters the front main pipe, the piston plugging block is ejected by air pressure, when the gas is exhausted for a certain time, the piston plugging block is reset by the resilience force of the limiting spring due to the fact that the gas quantity in the gas cylinder is reduced, the gas flow rate is reduced and the air pressure is reduced, the electric control valve is opened in the process, and the rotary vacuum air pump is started; and automatic pressurizing conveying is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of compressed gas transportation, and particularly relates to a bundle-type container for transporting high-pressure gas. Background Art

[0002] A bundle-type container is a structure in which multiple gas cylinders are assembled in a frame and is used for transporting various gases. Especially during the process of storing compressed natural gas, oxygen, hydrogen, nitrogen and other special gases, when discharging gas from the gas cylinders, as the pressure in the gas cylinders continuously decreases, the flow rate of the compressed gas flowing out of the gas cylinders will decrease. Therefore, the gas discharge efficiency will be reduced.

[0003] Chinese Patent with the authorization announcement number CN219014007U discloses a bundle-type container for compressed gas, which includes a frame. The gas cylinders are fixed in the frame. One end of the gas cylinders is connected to an inlet and outlet gas pipeline. The inlet and outlet gas pipeline includes a main gas pipeline. A first stop valve is arranged on the main gas pipeline. A rotary vacuum pump is arranged below the main gas pipeline. A first branch pipe connected to one end of the main gas pipeline is arranged at the inlet end of the rotary vacuum pump. A second stop valve is arranged on the first branch pipe. A second branch pipe connected to the other end of the main gas pipeline is arranged at the outlet end of the rotary vacuum pump. When discharging gas, the first stop valve is first opened and the second stop valve is ensured to be closed. When the gas flow rate becomes slow and the air pressure becomes small, the first stop valve is closed, the second stop valve is opened, and the rotary vacuum pump is started to perform pressurized transportation by relying on the rotary vacuum pump.

[0004] The deficiencies of the above prior art solutions are as follows: Although the above solution can perform pressurized transportation on the gas with a relatively small remaining air pressure in the gas cylinders by relying on the rotary vacuum pump to ensure the gas discharge efficiency, during the pressurized transportation operation, the originally opened first stop valve needs to be closed first, then the second stop valve needs to be opened, and the vacuum pump needs to be started. The whole process requires multiple operations, and it is not disclosed how to achieve this. If manual operation is relied on, the operation is cumbersome and not convenient enough. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a bundle-type container for transporting high-pressure gas, so as to solve the technical problem that when the bundle-type container in the prior art discharges gas, if pressurized transportation is required when the air pressure decreases, multiple operations are needed, the operation is cumbersome, and it is not convenient enough.

[0006] The technical problem to be solved by the utility model can be realized by the following technical solutions:

[0007] A bundle-type container for transporting high-pressure gas includes a box frame and gas cylinders. The gas cylinders are fixedly arranged inside the box frame. One end of the gas cylinders is provided with an exhaust pipe, and further includes:

[0008] A front main pipe, the front main pipe is arranged inside the box frame, and a main valve is connected between the front main pipe and the exhaust pipe;

[0009] An elastic piston assembly, the elastic piston assembly is arranged at the end of the front main pipe away from the main valve, the elastic piston assembly includes a piston cylinder and a piston blocking block, the piston cylinder is fixedly connected to the end of the front main pipe away from the main valve, the piston blocking block is slidably arranged inside the piston cylinder, a connecting block is arranged outside the end of the piston cylinder away from the front main pipe, and a limiting spring is connected between the connecting block and the piston blocking block;

[0010] A rear main pipe connected to an end of the piston cylinder close to the front main pipe;

[0011] An auxiliary air pump assembly, the auxiliary air pump assembly being arranged between the front main pipe and the rear main pipe;

[0012] A trigger switch group is arranged outside the piston cylinder, and the trigger switch group is cooperatively connected with the piston blocking block, and the trigger switch group is also electrically connected with the auxiliary air pump assembly.

[0013] As a further solution of the utility model: the auxiliary air pump assembly includes a rotary vacuum pump, an exhaust pipe, an electrically controlled valve and a one-way air delivery pipe. The rotary vacuum pump is arranged inside the box frame, the exhaust pipe is connected between the air inlet end and the front main pipe of the rotary vacuum pump, the electrically controlled valve is arranged on the exhaust pipe, the electrically controlled valve and the rotary vacuum pump are both electrically connected to the trigger switch group, and the one-way air delivery pipe is connected between the air outlet end and the rear main pipe of the rotary vacuum pump.

[0014] As a further solution of the utility model: the one-way air delivery pipe includes an air guide pipe and a one-way valve, the air guide pipe is connected between the air outlet end of the rotary vacuum pump and the rear main pipe, and the one-way valve is connected to the air guide pipe.

[0015] As a further solution of the utility model: the trigger switch group includes a valve button switch, an air pump button switch, a connecting cross bar and a rotating extrusion block, the valve button switch and the air pump button switch are distributed between the connecting block and the piston cylinder, the valve button switch is electrically connected to the electric control valve, the air pump button switch is electrically connected to the rotary vacuum pump, the connecting cross bar is connected to one end of the piston sealing block close to the connecting block, the rotating extrusion block is vertically arranged at the end of the connecting cross bar, and the upper end of the rotating extrusion block is in contact with the end of the connecting cross bar, and the lower edge of the end of the connecting cross bar is movably connected to the rotating extrusion block through a rebound hinge.

[0016] As a further solution of the utility model: a pulley is arranged at the bottom end of the rotating extrusion block.

[0017] Beneficial effects of the utility model:

[0018] 1. When the high-pressure gas in the gas cylinder needs to be discharged and introduced into the corresponding gas storage container in the present utility model, the main valve is opened. Then, the high-pressure gas enters the front main pipe, and the piston sealing block is pushed open by the air pressure, causing the piston sealing block to move in the direction of compressing the limit spring. Then, it flows away from the position where the rear air pipe communicates with the piston cylinder. When the gas discharge reaches a certain duration, due to the decrease in the gas volume in the gas cylinder, the gas flow rate decreases, and the air pressure becomes smaller. The piston sealing block is reset by the resilience of the limit spring. During this process, the piston sealing block squeezes the valve key switch and the air pump key switch by means of the rotating extrusion block, causing the electric control valve to open, and the rotary vacuum pump to start. The rotary vacuum pump directly pumps the gas in the front main pipe into the rear main pipe at a certain pressure through the suction pipe, realizing pressurized transportation without manual operation, and can achieve automatic pressurized transportation to ensure the gas discharge efficiency.

[0019] 2. When the piston sealing block of the present utility model moves in the direction of compressing the limit spring, the rotating extrusion block passes through the positions where the valve key switch and the air pump key switch are located. At this time, the rotating extrusion block rotates clockwise relative to the connecting cross bar, and has no squeezing effect on the valve key switch and the air pump key switch. Only when the piston sealing block is reset, since the rotating extrusion block cannot rotate counterclockwise relative to the connecting cross bar from the vertical position, it has a squeezing effect on multiple valve key switches and air pump key switches, that is, it ensures triggering in one direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The following further describes the present utility model with reference to the drawings.

[0021] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0022] Figure 2 is a partial structural schematic diagram of the cooperation and connection of the front main pipe, piston cylinder and rear main pipe in the present utility model;

[0023] Figure 3 is a structural schematic diagram of the high-pressure gas discharged from the front main pipe of the present utility model pushing open the piston sealing block;

[0024] Figure 4 is a structural schematic diagram of the cooperation and connection between the rotating extrusion block and the connecting cross bar in the present utility model.

[0025] In the figure: 1. Box frame; 2. Gas cylinder; 3. Exhaust pipe; 4. Front main pipe; 5. Rear main pipe; 6. Rotary vacuum pump; 7. Main valve; 8. Electric control valve; 9. Check valve; 10. Air guide pipe; 11. Suction pipe; 12. Piston cylinder; 13. Piston sealing block; 14. Limit spring; 15. Connecting block; 16. Pulley; 17. Valve key switch; 18. Air pump key switch; 19. Rotating extrusion block; 20. Connecting cross bar. Detailed implementation mode

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0027] As Figures 1 - 4 shown, a bundle-type container for transporting high-pressure gas includes a box body frame 1 and gas cylinders 2. The gas cylinders 2 are fixedly arranged inside the box body frame 1, and a plurality of gas cylinders 2 are provided. Corresponding pipeline system components and safety protection components are installed on the box body frame 1 as required;

[0028] One end of the gas cylinder 2 is provided with an exhaust pipe 3, and the exhaust pipe 3 is used to conduct the high-pressure gas in the gas cylinder 2 out;

[0029] This bundle-type container further includes a front main pipe 4, a rear main pipe 5, an auxiliary air pump assembly, an elastic piston assembly and a trigger switch group; the front main pipe 4 is arranged inside the box body frame 1 and is at one end close to the exhaust pipe 3. A main valve 7 is connected between the front main pipe 4 and the exhaust pipe 3. Here, it should be noted that only one main valve 7 is provided. The end of the exhaust pipe 3 connected to each gas cylinder 2 is cooperatively connected to the front main pipe 4 through the main valve 7. For the convenience of installation and connection, a plurality of connection ports are arranged at the air inlet end of the main valve 7, and each connection port is communicated with the end of an exhaust pipe 3, and the air outlet end is communicated with the front main pipe 4. When gas discharge is required, the main valve 7 is directly opened, and thus the high-pressure gas in each gas cylinder 2 is discharged into the front main pipe 4;

[0030] The elastic piston assembly is arranged at the end of the front main pipe 4 away from the main valve 7. The elastic piston assembly includes a piston cylinder 12 and a piston plugging block 13. The piston cylinder 12 is fixedly connected to the end of the front main pipe 4 away from the main valve 7 and is communicated with each other. The end of the piston cylinder 12 away from the front main pipe 4 is an opening. The piston plugging block 13 is slidably arranged inside the piston cylinder 12. The diameter of the piston plugging block 13 is larger than the caliber of the end of the front main pipe 4. When the piston plugging block 13 is in the initial position, it fits together with the end of the front main pipe 4. A connecting block 15 is fixedly arranged outside the end of the piston cylinder 12 away from the front main pipe 4, and a limiting spring 14 is connected between the connecting block 15 and the piston plugging block 13, and the limiting spring 14 can be compressed;

[0031] When the main valve 7 is opened and the high-pressure gas inside the gas cylinder 2 is discharged, the high-pressure gas impacts the piston plugging block 13 along the front main pipe 4, and the piston plugging block 13 slides under the action of air pressure to compress the limiting spring 14;

[0032] The rear main pipe 5 is connected to one end of the piston cylinder 12 close to the front main pipe 4, and the end of the rear main pipe 5 connected to the piston cylinder 12 cooperates with the piston sealing block 13. When the piston sealing block 13 is in the original position, it exactly seals the communication position between the rear main pipe 5 and the piston cylinder 12. When the piston sealing block 13 slides away due to air pressure impact, the rear main pipe 5 is communicated with the piston cylinder 12, and the gas is discharged along the rear main pipe 5. The rear main pipe 5 is communicated with the corresponding gas storage container to realize gas discharge;

[0033] The auxiliary air pump assembly is arranged between the front main pipe 4 and the rear main pipe 5;

[0034] The trigger switch group is arranged outside the piston cylinder 12, and the trigger switch group is connected with the piston sealing block 13 in a matching way. The trigger switch group is also electrically connected with the auxiliary air pump assembly;

[0035] When the gas in the gas cylinder 2 becomes less, the gas flow rate decreases, and the air pressure becomes smaller, the piston sealing block 13 can rely on the return elastic force released by the limit spring 14 to slide back and reset. During the process of sliding back and resetting, the piston sealing block 13 acts on the trigger switch group, and the trigger switch group makes the auxiliary air pump assembly operate. The auxiliary air pump assembly pumps away the gas with a slower flow rate entering the front main pipe 4 and transports it into the rear main pipe 5 according to a certain pressure to realize pressurized transportation, ensuring the gas discharge efficiency, and there is no need for manual control of the valve switch during this process, which is automatically triggered.

[0036] In some specific implementation schemes, in order to facilitate the effective discharge of the low-flow gas exported from the gas cylinder 2, it is pressurized and transported by relying on the auxiliary air pump assembly. The auxiliary air pump assembly includes a rotary vacuum pump 6, an air suction pipe 11, an electric control valve 8 and a one-way transportation air pipe. The rotary vacuum pump 6 is arranged inside the box frame 1. The air suction pipe 11 is connected between the air inlet end of the rotary vacuum pump 6 and the front main pipe 4. The electric control valve 8 is arranged on the air suction pipe 11. Both the electric control valve 8 and the rotary vacuum pump 6 are electrically connected with the trigger switch group. The one-way transportation air pipe is connected between the air outlet end of the rotary vacuum pump 6 and the rear main pipe 5. When the trigger switch group is affected, the electric control valve 8 opens, and at the same time the rotary vacuum pump 6 starts. The rotary vacuum pump 6 sucks air from the front main pipe 4 through the air suction pipe 11, so that the decelerated gas is sucked away according to a certain pressure and transported into the rear main pipe 5 through the one-way transportation air pipe and then transmitted away.

[0037] In some specific implementation schemes, in order to prevent the gas from flowing into the rotary vacuum pump 6 when flowing through the rear main pipe 5, a one-way transportation air pipe is set. The one-way transportation air pipe includes a guide air pipe 10 and a one-way valve 9. The guide air pipe 10 is connected between the air outlet end of the rotary vacuum pump 6 and the rear main pipe 5. The one-way valve 9 is connected to the guide air pipe 10. The one-way valve 9 enables the gas to only flow into the rear main pipe 5 through the guide air pipe 10 and cannot flow reversely.

[0038] In some specific embodiments, to ensure that when the piston plugging block 13 moves towards the direction of compressing the limit spring 14, it has no effect on the trigger switch group and only takes effect during the return and reset process, a trigger switch group meeting the requirements is set. The trigger switch group includes a valve push-button switch 17, an air pump push-button switch 18, a connecting crossbar 20, and a rotating extrusion block 19. The valve push-button switch 17 and the air pump push-button switch 18 are distributed between the connecting block 15 and the piston cylinder 12. The valve push-button switch 17 is electrically connected to the electric control valve 8, and the air pump push-button switch 18 is electrically connected to the rotary vacuum pump 6. Pressing the valve push-button switch 17 and the air pump push-button switch 18 once opens the corresponding electric control valve 8 and starts the rotary vacuum pump 6. Pressing again closes the electric control valve 8 and shuts down the rotary vacuum pump 6. The connecting crossbar 20 is horizontally connected to one end of the piston plugging block 13 close to the connecting block 15. The rotating extrusion block 19 is vertically arranged at the end of the connecting crossbar 20, and the upper end of the rotating extrusion block 19 fits with the end of the connecting crossbar 20. The lower side edge of the end of the connecting crossbar 20 is movably connected to the rotating extrusion block 19 through a return hinge. The rotating extrusion block 19 cannot rotate counterclockwise from the vertical position and can only rotate clockwise from the vertical position. The bottom end of the rotating extrusion block 19 cooperates with the valve push-button switch 17 and the air pump push-button switch 18. When the piston plugging block 13 moves towards the direction of the compressing limit spring 14, it drives the rotating extrusion block 19 through the connecting crossbar 20 to pass through the positions of the valve push-button switch 17 and the air pump push-button switch 18. During this process, the rotating extrusion block 19 deflects clockwise and has no squeezing effect on the switches. When the piston plugging block 13 returns and resets, it drives the rotating extrusion block 19 to move horizontally and reset through the connecting crossbar 20. Since the rotating extrusion block 19 cannot rotate counterclockwise from the vertical position at this time, when passing through the valve push-button switch 17 and the air pump push-button switch 18, it sequentially exerts a squeezing effect on the valve push-button switch 17 and the air pump push-button switch 18, thereby opening the electric control valve 8 and starting the rotary vacuum pump 6.

[0039] In some specific embodiments, to facilitate the rotating extrusion block 19 to squeeze through the positions of the valve push-button switch 17 and the air pump push-button switch 18, a pulley 16 is provided at the bottom end of the rotating extrusion block 19. The pulley 16 facilitates the relative sliding of the bottom end of the rotating extrusion block 19 when it contacts the valve push-button switch 17 and the air pump push-button switch 18.

[0040] To facilitate the understanding of the embodiments of this solution by those skilled in the art, the working principle of the embodiments of this solution will be described below in combination with a specific application scenario:

[0041] When gas needs to be discharged, the rear main pipe 5 is connected to the corresponding gas storage container, and then the main valve 7 is opened. In this way, the high-pressure gas in each gas cylinder 2 is discharged into the front main pipe 4. The high-pressure gas impacts the piston plug 13 along the front main pipe 4. The piston plug 13 slides under the action of air pressure and compresses the limit spring 14. In this way, the piston plug 13 disengages from the position where the rear main pipe 5 communicates with the piston cylinder 12, and then the gas is discharged along the rear main pipe 5 and enters the gas storage container to achieve gas discharge.

[0042] When the gas in the gas cylinder 2 becomes less, the gas flow rate decreases, and the air pressure becomes small, the piston plug 13 can slide back and reset by relying on the resilience released by the limit spring 14. When the piston plug 13 moves in the direction of compressing the limit spring 14, it drives the rotary extrusion block 19 to pass through the positions where the valve key switch 17 and the air pump key switch 18 are located through the connecting cross bar 20. During this process, the rotary extrusion block 19 deflects clockwise and has no extrusion effect on the switch. When the piston plug 13 slides back and resets, it drives the rotary extrusion block 19 to move horizontally and reset through the connecting cross bar 20. Since the rotary extrusion block 19 cannot rotate counterclockwise from the vertical position at this time, when it passes through the valve key switch 17 and the air pump key switch 18, it sequentially exerts an extrusion effect on the valve key switch 17 and the air pump key switch 18, so that the electric control valve 8 is opened and the rotary vacuum pump 6 is started.

[0043] The rotary vacuum pump 6 evacuates the air from the front main pipe 4 through the suction pipe 11, so that the decelerated gas is evacuated at a certain pressure, and is conveyed to the rear main pipe 5 through the one-way conveying air pipe and then transmitted away to achieve pressurized conveying and ensure the gas discharge efficiency. During this process, there is no need for manual control of the valve switch, and it is automatically triggered.

[0044] The above has described a detailed description of an embodiment of the present invention, but the content described is only the preferred embodiment of the present invention and cannot be considered as used to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. A tube bundle container for transporting high-pressure gas, comprising a box frame (1) and a gas cylinder (2), wherein the gas cylinder (2) is fixedly arranged inside the box frame (1); an exhaust pipe (3) is arranged at one end of the gas cylinder (2), characterized in that: Also includes: A front main pipe (4), the front main pipe (4) being arranged inside the box frame (1), and a main valve (7) being connected between the front main pipe (4) and the exhaust pipe (3); An elastic piston assembly, the elastic piston assembly is arranged at one end of the front main pipe (4) away from the main valve (7), the elastic piston assembly comprises a piston cylinder (12) and a piston blocking block (13), the piston cylinder (12) is fixedly connected to one end of the front main pipe (4) away from the main valve (7), the piston blocking block (13) is slidably arranged inside the piston cylinder (12), a connecting block (15) is arranged outside the end of the piston cylinder (12) away from the front main pipe (4), and a limit spring (14) is connected between the connecting block (15) and the piston blocking block (13); A rear main pipe (5), the rear main pipe (5) being connected to one end of the piston cylinder (12) close to the front main pipe (4); An auxiliary air pump assembly, the auxiliary air pump assembly being arranged between the front main pipe (4) and the rear main pipe (5); A trigger switch group is arranged outside the piston cylinder (12), and the trigger switch group is cooperatively connected with the piston blocking block (13), and the trigger switch group is also electrically connected with the auxiliary air pump assembly.

2. A tube bundle container for transporting high-pressure gas according to claim 1, characterized in that: The auxiliary air pump assembly comprises a rotary vacuum pump (6), an air extraction pipe (11), an electrically controlled valve (8) and a one-way air delivery pipe. The rotary vacuum pump (6) is arranged inside the box frame (1). The air extraction pipe (11) is connected between the air inlet end of the rotary vacuum pump (6) and the front main pipe (4). The electrically controlled valve (8) is arranged on the air extraction pipe (11). The electrically controlled valve (8) and the rotary vacuum pump (6) are both electrically connected to a trigger switch group. The one-way air delivery pipe is connected between the air outlet end of the rotary vacuum pump (6) and the rear main pipe (5).

3. A tube bundle container for transporting high-pressure gas according to claim 2, characterized in that: The one-way air delivery pipe comprises an air guide pipe (10) and a one-way valve (9); the air guide pipe (10) is connected between the air outlet end of the rotary vacuum pump (6) and the rear main pipe (5); and the one-way valve (9) is connected to the air guide pipe (10).

4. The tube bundle container for transporting high-pressure gas according to claim 2, characterized in that: The trigger switch group comprises a valve key switch (17), an air pump key switch (18), a connecting cross bar (20) and a rotating extrusion block (19); the valve key switch (17) and the air pump key switch (18) are distributed between the connecting block (15) and the piston cylinder (12); the valve key switch (17) is electrically connected to the electric control valve (8); the air pump key switch (18) is electrically connected to the rotary vacuum pump (6); the connecting cross bar (20) is connected to one end of the piston sealing block (13) close to the connecting block (15); the rotating extrusion block (19) is vertically arranged at the end of the connecting cross bar (20); the upper end of the rotating extrusion block (19) is in contact with the end of the connecting cross bar (20); and the lower side edge of the end of the connecting cross bar (20) is movably connected to the rotating extrusion block (19) through a rebound hinge.

5. The tube bundle container for transporting high-pressure gas according to claim 4, characterized in that: A pulley (16) is provided at the bottom end of the rotating extrusion block (19).

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