Natural gas storage tank

Abstract

The natural gas storage tank comprises a tank body and a connecting seat, a sliding groove is formed in the upper end face of the connecting seat, a sliding seat is fixedly connected to the lower end face of the tank body, the sliding seat is connected into the sliding groove in a sliding mode, a connecting hose is fixedly connected to the outer wall of a device block, and the connecting hose is communicated with the interior of a heat preservation cavity. And the upper end face of the piston is fixedly connected with a connecting rod, and the other end of the connecting rod is fixedly connected with the lower end face of the sliding base. The heat preservation cavity is formed in the tank body, the anti-freezing solution is injected into the heat preservation cavity, when the tank body is transported in rainy and snowy days, the influence of low temperature on tank body winding can be avoided, the possibility of tank body breakage is reduced, meanwhile, the anti-freezing solution in the heat preservation cavity can be in a flowing state in cooperation with sliding of the piston, and the anti-freezing effect is improved. And thus, more uniform temperature distribution in the heat preservation cavity can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of storage tanks, in particular to a natural gas storage tank. Background Art

[0002] Natural gas refers to a type of combustible gas that exists in nature. It is a fossil fuel, including gases formed by various natural processes in the atmosphere, hydrosphere, and lithosphere. The definition of "natural gas" that people have long used is a narrow definition from an energy perspective, which refers to a mixture of hydrocarbons and non-hydrocarbon gases naturally stored in strata. Natural gas needs to be stored in natural gas storage tanks.

[0003] Most of the natural gas storage tanks currently on the market, such as the one disclosed in the authorization announcement number CN219692931U, mostly use springs and other buffer components to buffer the storage tanks during transportation. However, when transporting natural gas tanks in rainy and snowy weather in winter, the cold weather will cause the temperature around the storage tanks to drop. The low temperature will affect the performance of the tank material, such as increasing the brittleness of the metal, thereby increasing the risk of tank rupture. Therefore, it is necessary to redesign a natural gas storage tank to address the above problems. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a natural gas storage tank.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A natural gas storage tank comprises a tank body and a connecting seat, wherein a slide groove is provided on the upper end surface of the connecting seat, a slide seat is fixedly connected to the lower end surface of the tank body, the slide seat is slidably connected in the slide groove, a heat preservation cavity is provided in the tank body, a plurality of groups of device blocks are symmetrically provided in the slide groove, a buffer groove is provided on the upper end surfaces of the plurality of groups of device blocks, a piston is slidably connected in the buffer groove, a connecting hose is fixedly connected to the outer wall of the device block, the connecting hose is communicated with the inside of the heat preservation cavity, the other end of the connecting hose passes through the slide seat and is communicated with the inside of the device block, a connecting rod is fixedly connected to the upper end surface of the piston, the other end of the connecting rod is fixedly connected to the lower end surface of the slide seat, a heating wire is installed at the bottom of the buffer groove, a limiting ring is installed at the notch of the buffer groove, and the inner diameter of the limiting ring is larger than the outer diameter of the piston.

[0007] Preferably, a spring is fixedly connected to the bottom of the buffer groove, and the other end of the spring is fixedly connected to the piston.

[0008] Preferably, the outer wall of the piston and the inner wall of the buffer groove are both annular, and the outer wall of the piston is in close contact with the inner wall of the buffer groove.

[0009] Preferably, the outer walls on both sides of the connecting seat are provided with multiple groups of screws, and the multiple groups of screws are symmetrically arranged in pairs.

[0010] Preferably, an exhaust pipe is installed on the outer wall of the tank body and is communicated with the interior of the tank body.

[0011] The utility model has the following beneficial effects:

[0012] 1. The utility model opens a heat preservation chamber in the tank body and injects antifreeze into the heat preservation chamber. When the tank body is transported in rainy and snowy weather, the influence of low temperature on the tank body can be avoided and the possibility of tank body rupture can be reduced. At the same time, with the sliding of the piston, the antifreeze in the heat preservation chamber can be in a flowing state, which can help to achieve a more uniform temperature distribution in the heat preservation chamber.

[0013] 2. The utility model provides springs, pistons and other devices. When the tank is transported on a bumpy road, the pistons and springs can buffer the force generated and reduce the direct force on the outer wall of the tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of a natural gas storage tank proposed by the utility model;

[0015] Figure 2 for Figure 1 Section view.

[0016] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure at the middle device block.

[0017] In the figure: 1. tank body; 2. slide seat; 3. connecting seat; 4. screw; 5. exhaust pipe; 6. slide groove; 7. insulation chamber; 8. connecting hose; 9. buffer groove; 10. piston; 11. spring; 12. heating wire; 13. connecting rod; 14. limit ring; 15. device block. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Reference Figure 1-3A natural gas storage tank includes a tank body 1 and a connecting seat 3. The upper end surface of the connecting seat 3 is provided with a slide groove 6. The lower end surface of the tank body 1 is fixedly connected with a slide seat 2. The slide seat 2 is slidably connected in the slide groove 6. A heat preservation chamber 7 is provided in the tank body 1. A plurality of groups of device blocks 15 are symmetrically provided in the slide groove 6. The upper end surfaces of the plurality of groups of device blocks 15 are all provided with buffer grooves 9. A piston 10 is slidably connected in the buffer groove 9. A connecting hose 8 is fixedly connected to the outer wall of the device block 15. The connecting hose 8 is communicated with the inside of the heat preservation chamber 7. The other end of the connecting hose 8 passes through the slide seat 2 and is communicated with the inside of the device block 15. A connecting rod 13 is fixedly connected to the upper end surface of the piston 10. The connecting rod 13 is also connected to the inner wall of the device block 15. One end is fixedly connected to the lower end surface of the slide seat 2, an electric heating wire 12 is installed at the bottom of the buffer groove 9, and a limit ring 14 is installed at the notch of the buffer groove 9. The inner diameter of the limit ring 14 is larger than the outer diameter of the piston 10. The limit ring 14 can limit the sliding height of the piston 10 to prevent the piston 10 from leaving the buffer groove 9. Antifreeze is injected into the insulation chamber 7. During the transportation of the tank body 1, the vehicle body will shake to a certain extent, synchronously driving the piston 10 to slide in the buffer groove 9, so that the antifreeze in the insulation chamber 7 can be in a flowing state. The flow of antifreeze can help achieve a more uniform temperature distribution in the insulation chamber 7.

[0020] Reference Figure 2 and Figure 3 A spring 11 is fixedly connected to the bottom of the buffer groove 9, and the other end of the spring 11 is fixedly connected to the piston 10. When the vehicle body shakes, the set spring 11 can reduce the impact caused by the shaking of the vehicle body and reduce the direct force on the outer wall of the tank body 1.

[0021] Reference Figure 3 The outer wall of the piston 10 and the inner wall of the buffer groove 9 are both annular, and the outer wall of the piston 10 is in close contact with the inner wall of the buffer groove 9. When the piston 10 slides, it contacts the inner wall of the buffer groove 9, and has a certain resistance when sliding, which can further reduce the force generated when the vehicle body shakes.

[0022] Reference Figure 1 and Figure 2 The outer walls on both sides of the connecting seat 3 are provided with multiple sets of screws 4, and the multiple sets of screws 4 are symmetrically arranged in pairs. An exhaust pipe 5 is installed on the outer wall of the tank body 1 and is connected to the inside of the tank body 1. The setting of the screws 4 can quickly install the entire device on the vehicle body.

[0023] In the utility model, the specific function of the device is: when using the device, the insulation chamber 7 is filled with antifreeze, which can reduce the impact of low temperature on the performance of the tank body 1 in cold weather and reduce the possibility of the tank body 1 rupture. When the tank body 1 is transported by bumps, the shaking caused by the tank body 1 and the slide seat 2 slide back and forth in the slide groove 6. During sliding, the piston 10 is driven to slide in the buffer groove 9 by multiple sets of connecting rods 13. During sliding, the antifreeze in the insulation chamber 7 can be drawn into the buffer groove 9 and then discharged into the insulation chamber 7, so that the antifreeze in the insulation chamber 7 is in a flowing state. At the same time, a heating wire 12 is arranged at the bottom of the buffer groove 9 to heat the antifreeze. During this process, there is a certain resistance to the sliding of the piston 10. In combination with the spring 11, the impact caused by the shaking of the vehicle body can be reduced, the direct force on the outer wall of the tank body 1 can be reduced, and the overall safety performance of the tank body 1 can be improved.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A natural gas storage tank, comprising a tank body (1) and a connecting seat (3), characterized in that: The upper end surface of the connecting seat (3) is provided with a slide groove (6), the lower end surface of the tank body (1) is fixedly connected with a slide seat (2), the slide seat (2) is slidably connected in the slide groove (6), the tank body (1) is provided with a heat preservation chamber (7), the slide groove (6) is symmetrically provided with a plurality of groups of device blocks (15), the upper end surfaces of the plurality of groups of the device blocks (15) are all provided with a buffer groove (9), the buffer groove (9) is slidably connected with a piston (10), and the outer wall of the device block (15) is fixedly connected with a connecting hose (8) ), the connecting hose (8) is in communication with the interior of the heat preservation chamber (7), the other end of the connecting hose (8) passes through the slide seat (2) and is in communication with the interior of the device block (15), the upper end surface of the piston (10) is fixedly connected with a connecting rod (13), the other end of the connecting rod (13) is fixedly connected with the lower end surface of the slide seat (2), the bottom of the buffer groove (9) is provided with an electric heating wire (12), and a limiting ring (14) is installed at the notch of the buffer groove (9), and the inner diameter of the limiting ring (14) is larger than the outer diameter of the piston (10).

2. A natural gas storage tank according to claim 1, characterized in that: A spring (11) is fixedly connected to the bottom of the buffer groove (9), and the other end of the spring (11) is fixedly connected to the piston (10).

3. A natural gas storage tank according to claim 2, characterized in that: The outer wall of the piston (10) and the inner wall of the buffer groove (9) are both annular, and the outer wall of the piston (10) is in close contact with the inner wall of the buffer groove (9).

4. A natural gas storage tank according to claim 3, characterized in that: The outer walls on both sides of the connection seat (3) are provided with multiple groups of screws (4), and the multiple groups of screws (4) are symmetrically arranged in pairs.

5. A natural gas storage tank according to claim 4, characterized in that: An exhaust pipe (5) is installed on the outer wall of the tank body (1) and is in communication with the interior of the tank body (1).

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