Double-layer heat insulation layer for natural gas storage tank

Abstract

The utility model relates to the field of heat insulation layers, in particular to a double-layer heat insulation layer for a natural gas storage tank. Comprising a tank body and a double-layer heat preservation structure, a connecting pipe is installed at the upper end of the tank body, a supporting base is installed at the lower end of the tank body, the double-layer heat preservation structure is located outside the tank body and comprises a heat preservation cylinder, the tank body is sleeved with the heat preservation cylinder, and a plurality of rectangular holes are formed in the outer wall of the heat preservation cylinder and evenly distributed in the outer wall of the heat preservation cylinder; the outer wall of the heat preservation cylinder is slidably connected with a sliding ring, and the upper surface of the sliding ring is fixedly connected with a plurality of pull ropes. According to the double-layer heat insulation layer for the natural gas storage tank, when the natural gas storage tank is used, the heat preservation barrel and the outer heat preservation layer can form the double-layer heat preservation layer, heat preservation can be effectively carried out on the natural gas storage tank, after the outer heat preservation layer is abraded in use, personnel can conveniently replace the outer heat preservation layer, and the heat preservation efficiency is improved. And the practicability of the double-layer heat insulation and heat preservation layer is improved.

Description

Technical Field

[0001] This utility model relates to the field of thermal insulation layers, and more particularly to a double-layer thermal insulation layer for natural gas storage tanks. Background Technology

[0002] The double-layer thermal insulation layer of a natural gas storage tank is a structure used to maintain the low temperature inside the tank and reduce heat transfer. It is mainly used to store low-temperature media such as liquefied natural gas, ensuring stable storage and preventing evaporation loss.

[0003] Utility model patent CN210920935U discloses a natural gas storage tank. The key technical features are as follows: the tank body includes an outer tank and an inner tank, with a buffer layer and a thermal insulation layer between them. An air inlet is located on one side of the top surface of the tank body, and a sealing cap is installed on the air inlet. A pressure regulating tank is installed on the other side of the top surface of the tank body, and the pressure regulating tank is connected to the tank body via a conduit with a pressure valve installed on the conduit. Several evenly distributed roller grooves are provided on the bottom surface of the tank body, and rollers are movably engaged within these grooves. This utility model incorporates a buffer layer and a thermal insulation layer within the tank body. The buffer layer reduces vibration during transport, while the thermal insulation layer provides insulation, preventing excessively high external temperatures or excessive shaking during transport from causing the liquefied natural gas in the tank to vaporize and increasing the internal pressure. The pressure regulating tank, connected to the tank body, can receive natural gas from the tank when the internal pressure is too high, reducing the internal pressure and ensuring the safety of the storage tank.

[0004] Regarding the above-mentioned content, the following technical defects were found:

[0005] 1. In the existing technology, the thermal insulation layer cannot be replaced after wear and tear, which will reduce the thermal insulation performance of the thermal insulation layer;

[0006] 2. The thermal insulation layer in the existing technology is a single-layer structure, and its thermal insulation performance is poor.

[0007] Therefore, it is necessary to provide a new type of double-layer thermal insulation layer for natural gas storage tanks to solve the above-mentioned technical problems. Utility Model Content

[0008] The purpose of this invention is to address the shortcomings of existing technologies by proposing a double-layer thermal insulation layer for natural gas storage tanks.

[0009] To solve the above-mentioned technical problems, this utility model provides a double-layer thermal insulation layer for natural gas storage tanks, comprising: a tank body and a double-layer insulation structure. A pipe is installed at the upper end of the tank body, and a support base is installed at the lower end of the tank body. The double-layer insulation structure is located outside the tank body and includes an insulation cylinder. The insulation cylinder is sleeved on the outside of the tank body. The outer wall of the insulation cylinder has several rectangular holes evenly distributed on the outer wall of the insulation cylinder. A slip ring is slidably connected to the outer wall of the insulation cylinder. Several pull ropes are fixedly connected to the upper surface of the slip ring. An outer insulation layer is sleeved on the outside of the insulation cylinder. A connecting ring is fixedly connected to the lower end of the outer insulation layer. Several limiting posts are fixedly connected to the outer wall of the connecting ring. The pull ropes are sleeved on the arc surface of the limiting posts. The inner wall of the connecting ring is in contact with the outer wall of the connecting cylinder.

[0010] The effect achieved by the above components is as follows: by setting up a double-layer insulation structure, the insulation cylinder and the outer insulation layer can form a double-layer insulation layer when the natural gas storage tank is in use, which can effectively keep the natural gas storage tank warm. Moreover, after the outer insulation layer is worn out, it can be easily replaced by personnel, thus improving the practicality of the double-layer heat insulation layer.

[0011] Preferably, a positioning rod is slidably passed through the surface of the slip ring, and a support plate is fixedly connected to the lower end of the positioning rod. One side of the support plate is fixedly connected to the outer wall of the insulation cylinder.

[0012] The effect achieved by the above components is that when the slip ring moves along the outer wall of the insulation cylinder, the positioning rod can guide and position the slip ring, thereby improving the stability of the slip ring movement process.

[0013] Preferably, the arc surface of the positioning rod is fitted with a spring, and the two ends of the spring are fixedly connected to the slip ring and the support plate, respectively.

[0014] The effect achieved by the above components is that the spring can pull the slip ring to move automatically downwards, thus enabling the slip ring to move quickly and the outer insulation layer to unfold.

[0015] Preferably, the arc surface of the limiting post has a limiting hole, and the cross-section of the limiting hole is rectangular.

[0016] The effect achieved by the above components is that when the pull rope is looped onto the limiting post, the pull rope can be placed in the rectangular hole on the arc surface of the limiting post, thus making the pull rope and the limiting post more securely connected.

[0017] Preferably, a handle is fixedly connected to the outer wall of the slip ring, and the handle has a "U" shaped cross-section.

[0018] The effect achieved by the above components is that moving the handle can drive the slip ring, thus enabling convenient control of the slip ring.

[0019] Preferably, the outer wall of the insulation cylinder is provided with an auxiliary structure, the auxiliary structure including a fixed seat, one side of the fixed seat being fixedly connected to the outer wall of the insulation cylinder, a connecting plate being rotatably connected to the inner wall of the fixed seat, a sealing plate being fixedly connected to one side of the connecting plate, the sealing plate being adapted to the size of the lower opening of the insulation cylinder, a sliding hole being provided on one side of the fixed seat, the center of the sliding hole being coaxial with the axis of rotation of the connecting plate, a sliding rod being slidably connected to the inner wall of the sliding hole, one end of the sliding rod being fixedly connected to one side of the connecting plate, and an adjusting ring being threadedly connected to the arc surface of the sliding rod.

[0020] The effect achieved by the above-mentioned components is that, by setting up the auxiliary structure, after the natural gas storage tank is inside the insulation cylinder, personnel can easily adjust the sealing plate to seal the opening at the lower end of the insulation cylinder, further improving the sealing performance of the insulation cylinder.

[0021] Preferably, a rubber pad is fixedly connected to one side of the adjusting ring, and the diameter of the rubber pad is larger than the diameter of the adjusting ring.

[0022] The effect achieved by the above components is that the rubber pad can increase the friction on one side of the adjusting ring, thereby making the adjusting ring more firmly abut against the fixed seat.

[0023] Compared with related technologies, the double-layer thermal insulation layer for natural gas storage tanks provided by this utility model has the following beneficial effects:

[0024] This utility model provides a double-layer thermal insulation layer for natural gas storage tanks. By setting a double-layer insulation structure, the insulation cylinder and the outer insulation layer can form a double-layer insulation layer when the natural gas storage tank is in use, which can effectively keep the natural gas storage tank warm. Moreover, after the outer insulation layer is worn out, it can be easily replaced by personnel, thus improving the practicality of the double-layer thermal insulation layer.

[0025] By setting up an auxiliary structure, after the natural gas storage tank is inside the insulation cylinder, personnel can easily adjust the sealing plate to seal the opening at the lower end of the insulation cylinder, further improving the sealing performance of the insulation cylinder. Attached Figure Description

[0026] Figure 1 A schematic diagram of the structure of a double-layer thermal insulation layer for a natural gas storage tank provided by this utility model;

[0027] Figure 2 for Figure 1 The diagram shows a partial structure.

[0028] Figure 3 for Figure 1 The diagram shows the structure of the double-layer insulation structure.

[0029] Figure 4 for Figure 3 The enlarged view of point A shown;

[0030] Figure 5 for Figure 3 A partial structural disassembly diagram of the double-layer insulation structure is shown.

[0031] Figure 6 for Figure 1 The diagram shows the structure of the auxiliary structure.

[0032] Figure 7 for Figure 6 A partial structural diagram of the auxiliary structure shown.

[0033] The following are the labeling elements in the diagram: 1. Tank body; 2. Connecting pipe; 3. Double-layer insulation structure; 301. Insulation cylinder; 302. Rectangular hole; 303. Slip ring; 304. Pull rope; 305. Outer insulation layer; 306. Connecting ring; 307. Limiting post; 308. Limiting hole; 309. Positioning rod; 310. Support plate; 311. Spring; 312. Handle; 4. Auxiliary structure; 41. Fixing seat; 42. Connecting plate; 43. Sealing plate; 44. Sliding hole; 45. Sliding rod; 46. Adjusting ring; 47. Rubber pad; 5. Support seat. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0035] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0036] Please see Figure 1 and Figure 2 The present invention provides a double-layer heat insulation layer for a natural gas storage tank, comprising: a tank body 1 and a double-layer insulation structure 3. A pipe 2 is installed at the upper end of the tank body 1, and a support base 5 is installed at the lower end of the tank body 1. The double-layer insulation structure 3 is located outside the tank body 1, and an auxiliary structure 4 is provided on the outer wall of the insulation cylinder 301.

[0037] In the embodiments of this utility model, please refer to Figures 3 to 5The double-layer insulation structure 3 includes an insulation cylinder 301, which is sleeved on the outside of the tank body 1. The outer wall of the insulation cylinder 301 has several rectangular holes 302, which are evenly distributed on the outer wall of the insulation cylinder 301. A slip ring 303 is slidably connected to the outer wall of the insulation cylinder 301. Several pull ropes 304 are fixedly connected to the upper surface of the slip ring 303. An outer insulation layer 305 is sleeved on the outside of the insulation cylinder 301. A connecting ring 306 is fixedly connected to the lower end of the outer insulation layer 305. Several limiting posts 307 are fixedly connected to the outer wall of the connecting ring 306. The pull ropes 304 are sleeved on the arc surface of the limiting posts 307. The inner wall of the connecting ring 306 is in contact with the outer wall of the connecting cylinder. By setting a double-layer insulation structure 3, the insulation cylinder 301 and the outer insulation layer 305 can form a double-layer insulation layer when the natural gas storage tank is in use, which can effectively insulate the natural gas storage tank. Furthermore, the outer insulation layer 305 can be easily replaced after wear, improving the practicality of the double-layer insulation layer. A positioning rod 309 is slidably inserted through the surface of the slip ring 303. The lower end of the positioning rod 309 is fixedly connected to a support plate 310, and one side of the support plate 310 is fixedly connected to the outer wall of the insulation cylinder 301. When the slip ring 303 moves along the outer wall of the insulation cylinder 301, the positioning rod 309 can guide and position the slip ring 303, thereby improving the stability of the slip ring 303 during movement. A spring 311 is sleeved on the arc surface of the positioning rod 309, and the two ends of the spring 311 are fixedly connected to the slip ring 303 and the support plate 310, respectively. Spring 311 can pull slip ring 303 to move automatically downwards, achieving the effect of quickly moving slip ring 303 and unfolding outer insulation layer 305. Limiting post 307 has a limiting hole 308 on its arc surface, and the limiting hole 308 has a rectangular cross-section. When the pull rope 304 is fitted onto the limiting post 307, the pull rope 304 can be placed inside the rectangular hole 302 on the arc surface of the limiting post 307, achieving a more stable connection between the pull rope 304 and the limiting post 307. A handle 312 is fixedly connected to the outer wall of slip ring 303, and the handle 312 has a "U" shaped cross-section. Moving handle 312 can drive slip ring 303, achieving convenient control of slip ring 303.

[0038] In the embodiments of this utility model, please refer to Figure 6 and Figure 7The auxiliary structure 4 includes a fixed base 41, one side of which is fixedly connected to the outer wall of the insulation cylinder 301. A connecting plate 42 is rotatably connected to the inner wall of the fixed base 41. A sealing plate 43 is fixedly connected to one side of the connecting plate 42. The sealing plate 43 is adapted to the size of the opening at the lower end of the insulation cylinder 301. A sliding hole 44 is provided on one side of the fixed base 41. The center of the sliding hole 44 is coaxial with the axis of rotation of the connecting plate 42. A sliding rod 45 is slidably connected to the inner wall of the sliding hole 44. One end of the sliding rod 45 is fixedly connected to one side of the connecting plate 42. An adjusting ring 46 is threadedly connected to the arc surface of the sliding rod 45. By setting the auxiliary structure 4, after the natural gas storage tank is inside the insulation cylinder 301, personnel can easily adjust the sealing plate 43 to seal the opening at the lower end of the insulation cylinder 301, further improving the sealing performance of the insulation cylinder 301. A rubber pad 47 is fixedly connected to one side of the adjusting ring 46. The diameter of the rubber pad 47 is larger than the diameter of the adjusting ring 46. The rubber pad 47 can increase the friction on one side of the adjusting ring 46, thereby making the adjusting ring 46 more firmly abut against the fixed seat 41;

[0039] The working principle of the double-layer thermal insulation layer for natural gas storage tanks provided by this utility model is as follows: When the double-layer thermal insulation layer is needed to insulate and seal the tank body 1, first, the insulation cylinder 301 is placed on the outside of the tank body 1, and then the outer insulation layer 305 and the connecting ring 306 are placed on the top of the insulation cylinder 301. Then, the handle 312 is moved to drive the slip ring 303, so that the slip ring 303 drives the pull rope 304 to move closer to the connecting ring 306. Next, the pull rope 304 fixed on the slip ring 303 is placed on the arc surface of the limiting post 307. When the pull rope 304 is secured to the limiting post 307, the handle 312 can be released. At this time, the spring 311 can drive the slip ring 303 to move automatically downward. The slip ring 303 drives the pull rope 304, and the pull rope 304 pulls the limiting post 307 and the connecting ring 306. The connecting ring 306 pulls... The outer insulation layer 305 is moved so that it can unfold along the outer wall of the insulation cylinder 301. Once the outer insulation layer 305 is unfolded, the sealing and insulation operation of the natural gas storage tank can be completed. When the outer insulation layer 305 is worn, the pull rope 304 is moved to separate from the limiting post 307, and then the connecting ring 306 is moved to separate from the insulation cylinder 301. The outer insulation layer 305 can then be replaced. When the slip ring 303 moves along the outer wall of the insulation cylinder 301, the positioning rod 309 can guide and position the slip ring 303, thereby improving the stability of the slip ring 303 during movement. In addition, when the pull rope 304 is put on the limiting post 307, the pull rope 304 can be placed in the rectangular hole 302 on the arc surface of the limiting post 307, so that the pull rope 304 and the limiting post 307 can be connected more firmly.

[0040] When the natural gas storage tank is placed inside the insulation cylinder 301 and the bottom of the insulation cylinder 301 needs to be sealed, first rotate the sealing plate 43 to drive the connecting plate 42, so that the connecting plate 42 rotates along the inner wall of the fixed seat 41. After the sealing plate 43 blocks the opening at the lower end of the insulation cylinder 301, rotate the adjusting ring 46 to drive the rubber pad 47 to abut against the fixed seat 41, which can limit the sealing plate 43. The rubber pad 47 can increase the friction on one side of the adjusting ring 46, so that the adjusting ring 46 can abut against the fixed seat 41 more firmly. When it is necessary to open the sealing plate 43, first rotate the adjusting ring 46 to drive the rubber pad 47 to separate from the fixed seat 41, release the lock on the sealing plate 43, and then rotate the sealing plate 43 to rotate it away from the insulation cylinder 301 until the sealing plate 43 is opened.

[0041] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0042] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A double-layer thermal insulation layer for natural gas storage tanks, characterized in that, include: The tank (1) and the double-layer insulation structure (3) are provided. A pipe (2) is installed at the upper end of the tank (1), and a support base (5) is installed at the lower end of the tank (1). The double-layer insulation structure (3) is located outside the tank (1). The double-layer insulation structure (3) includes an insulation cylinder (301). The insulation cylinder (301) is fitted onto the outside of the tank (1). The outer wall of the insulation cylinder (301) has several rectangular holes (302). The rectangular holes (302) are evenly distributed on the outer wall of the insulation cylinder (301). A sliding ring (303) is slidably connected to the outer wall of the insulation cylinder (301). Several pull ropes (304) are fixedly connected to the upper surface of the sliding ring (303). An outer insulation layer (305) is sleeved on the outside of the insulation cylinder (301). A connecting ring (306) is fixedly connected to the lower end of the outer insulation layer (305). Several limiting posts (307) are fixedly connected to the outer wall of the connecting ring (306). The pull ropes (304) are sleeved on the arc surface of the limiting posts (307). The inner wall of the connecting ring (306) is in contact with the outer wall of the connecting cylinder.

2. The double-layer thermal insulation layer for natural gas storage tanks according to claim 1, characterized in that, The surface of the slip ring (303) is slidably provided with a positioning rod (309), and the lower end of the positioning rod (309) is fixedly connected to a support plate (310). One side of the support plate (310) is fixedly connected to the outer wall of the insulation cylinder (301).

3. The double-layer thermal insulation layer for natural gas storage tanks according to claim 2, characterized in that, The positioning rod (309) has a spring (311) fitted on its arc surface. The two ends of the spring (311) are fixedly connected to the slip ring (303) and the support plate (310) respectively.

4. The double-layer thermal insulation layer for natural gas storage tanks according to claim 1, characterized in that, The limiting post (307) has a limiting hole (308) on its arc surface, and the cross-section of the limiting hole (308) is rectangular.

5. A double-layer thermal insulation layer for natural gas storage tanks according to claim 1, characterized in that, The outer wall of the slip ring (303) is fixedly connected to a handle (312), and the cross section of the handle (312) is U-shaped.

6. A double-layer thermal insulation layer for natural gas storage tanks according to claim 1, characterized in that, The outer wall of the heat insulation cylinder (301) is provided with an auxiliary structure (4). The auxiliary structure (4) includes a fixed seat (41). One side of the fixed seat (41) is fixedly connected to the outer wall of the heat insulation cylinder (301). The inner wall of the fixed seat (41) is rotatably connected to a connecting plate (42). One side of the connecting plate (42) is fixedly connected to a sealing plate (43). The sealing plate (43) is adapted to the size of the lower opening of the heat insulation cylinder (301). One side of the fixed seat (41) is provided with a sliding hole (44). The center of the sliding hole (44) is coaxial with the axis of rotation of the connecting plate (42). The inner wall of the sliding hole (44) is slidably connected to a sliding rod (45). One end of the sliding rod (45) is fixedly connected to one side of the connecting plate (42). The arc surface of the sliding rod (45) is threadedly connected to an adjusting ring (46).

7. A double-layer thermal insulation layer for natural gas storage tanks according to claim 6, characterized in that, A rubber pad (47) is fixedly connected to one side of the adjusting ring (46), and the diameter of the rubber pad (47) is larger than the diameter of the adjusting ring (46).

Images