Interlayer low-temperature liquid storage tank

Abstract

The utility model relates to the technical field of storage tanks, and provides an interlayer low-temperature liquid storage tank which comprises an outer shell, an inner shell installed in the outer shell, a supporting assembly installed in the outer shell, a positioning assembly installed in the outer shell, a sliding assembly installed in the outer shell, and a supervision assembly installed on the top of the inner shell. When the storage tank is installed, the top of the outer shell is not sealed, the inner shell is placed in the outer shell, the connecting block drives the sliding block to slide in the guide rail, the inner shell slides to the top of the supporting ring, the outer portion of the inner shell makes contact with the outer portion of the rubber ring, the bottom of the inner shell is located in the supporting frame, and the spring drives the sliding plate to slide in the sleeve. The sliding plate pushes the connecting column to enable the fixing plate to move, the fixing plate pushes the positioning plate to make contact with and fix the position of the inner shell, and the inner shell can be stably supported in the using process. According to the technical scheme, the stability problem of the inner shell in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of storage tanks, and in particular to a sandwich low-temperature liquid storage tank. Background Art

[0002] Cryogenic liquid storage tanks are a type of cryogenic liquid storage tank. The cryogenic liquid market has been booming in recent years, with sales of liquid oxygen, liquid argon, liquid nitrogen, liquid carbon dioxide, and LNG (liquefied natural gas) increasing significantly. Consequently, the profit generated by oxygen concentrator byproducts is substantial, becoming a significant component of non-steel revenue for steel companies. The production, storage, and transportation of cryogenic liquids require insulated storage tanks, which are widely installed and used.

[0003] Cryogenic liquid storage tanks usually have a two-layer main structure, with an inner shell made of low-temperature-resistant stainless steel and an outer layer made of carbon steel with good compressive strength. The space between the inner and outer layers is filled with insulating material and then evacuated to provide insulation for the equipment. A support device is usually required when installing the inner shell to ensure the stability of the inner shell installation. However, the existing support device cannot stably support the inner shell during use and cannot protect the inner shell. Utility Model Content

[0004] The utility model provides a sandwich low-temperature liquid storage tank, which solves the inner shell stability problem in the related technology.

[0005] The technical solution of the present utility model is as follows: a sandwich low-temperature liquid storage tank, comprising an outer shell, an inner shell installed inside the outer shell, a support assembly installed inside the outer shell, a positioning assembly installed inside the outer shell, a sliding assembly installed inside the outer shell, the outer shell and the bottom plate are filled with a thermal insulation layer, and a supervision assembly is installed on the top of the inner shell.

[0006] Preferably, the sliding assembly includes a guide rail, which is fixed inside the outer shell. The guide rail is slidably connected to a slider inside, and the slider is fixedly connected to a connecting block outside. The outside of the connecting block is fixedly connected to the outside of the inner shell.

[0007] Preferably, the positioning assembly includes a support block, which is fixed inside the shell, a sleeve fixedly connected to the outside of the support block, a sliding plate slidably connected to the inside of the sleeve, a connecting column fixedly connected to the outside of the sliding plate, an end of the connecting column extends to the outside of the sleeve and is fixedly connected to a fixing plate, a positioning plate fixedly connected to the outside of the fixing plate, a connecting plate fixedly connected to the bottom of the positioning plate, and a spring fixedly connected between the sliding plate and the support block.

[0008] Preferably, the support assembly includes a fixing ring, which is fixed inside the shell, a fixing column is fixedly connected to the top of the fixing ring, a support frame is fixedly connected to the support ring inside the support frame, and a rubber ring is fixedly connected to the inside of the support frame.

[0009] Preferably, the monitoring component includes a detection box, which is fixed on the top of the inner shell, a pressure sensor is fixedly installed inside the detection box, a temperature sensor is fixedly installed inside the detection box, the pressure sensor and temperature sensor probes extend to the interior of the inner shell, an observer is fixedly installed on the top of the pressure sensor and the temperature sensor, and the top of the observer extends to the outside of the outer shell.

[0010] Preferably, the top of the support ring contacts the bottom of the inner shell, and the main view cross-section of the support frame is U-shaped.

[0011] Preferably, a support column is fixedly connected to the bottom of the shell, and a bottom plate is fixedly connected to the bottom of the support column.

[0012] Preferably, a sealing cover is fixedly installed inside the shell.

[0013] The working principle and beneficial effects of the utility model are as follows:

[0014] 1. In the present invention, when installing the storage tank, the outer shell is not sealed first, and the inner shell is placed inside the outer shell, so that the connecting block drives the slider to slide inside the guide rail, the inner shell slides to the top of the support ring, the outer side of the inner shell contacts the outer side of the rubber ring, and the bottom of the inner shell is located inside the support frame. The spring drives the sliding plate to slide inside the sleeve, and the sliding plate moves the fixed plate by pushing the connecting column. The fixed plate pushes the positioning plate to contact and fix the position of the inner shell, and the outer shell and the inner shell are filled with a thermal insulation layer. The outer shell is sealed and a sealing cover is installed. The internal data is observed from the observer through the detection of the pressure sensor and the temperature sensor probe. When in use, the inner shell can be stably supported and protected. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model from above;

[0019] Figure 4 This is a schematic diagram of the internal structure of the utility model;

[0020] Figure 5 For this utility model Figure 3 Enlarged view of point a in the middle;

[0021] Figure 6 For this utility model Figure 2 Enlarged view of point b in the middle;

[0022] In the figure: 1. Outer shell; 2. Bottom plate; 3. Support column; 4. Sealing cover; 5. Inner shell; 6. Insulation layer; 7. Positioning assembly; 71. Support block; 72. Sleeve; 73. Spring; 74. Sliding plate; 75. Connecting column; 76. Fixed plate; 77. Positioning plate; 78. Connecting plate; 8. Sliding assembly; 81. Guide rail; 82. Slider; 83. Connecting block; 9. Support assembly; 91. Support ring; 92. Support frame; 93. Fixed ring; 94. Fixed column; 95. Rubber ring; 10. Monitoring assembly; 101. Detection box; 102. Pressure sensor; 103. Temperature sensor; 104. Observer. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example 1

[0025] like Figures 1 to 6 As shown, this embodiment proposes a sandwich low-temperature liquid storage tank, including an outer shell 1, an inner shell 5 installed inside the outer shell 1, a support assembly 9 installed inside the outer shell 1, a positioning assembly 7 installed inside the outer shell 1, a sliding assembly 8 installed inside the outer shell 1, the outer shell 1 and the bottom plate 2 are filled with an insulation layer 6, a supervision assembly 10 is installed on the top of the inner shell 5, a support column 3 is fixedly connected to the bottom of the outer shell 1, the bottom of the support column 3 is fixedly connected to the bottom plate 2, a sealing cover 4 is fixedly installed inside the outer shell 1, and the insulation layer 6 is expanded perlite, which is filled into the interlayer after drying to reduce heat conduction and maintain the low temperature state in the tank.

[0026] Furthermore, the sliding assembly 8 includes a guide rail 81, which is fixed inside the outer shell 1. The guide rail 81 is slidably connected to a slider 82 inside, and the slider 82 is fixedly connected to a connecting block 83 outside. The outside of the connecting block 83 is fixedly connected to the outside of the inner shell 5. The inner shell 5 is placed inside the outer shell 1, so that the connecting block 83 drives the slider 82 to slide inside the guide rail 81, thereby limiting the installation trajectory of the outer shell 5.

[0027] Furthermore, the positioning assembly 7 includes a support block 71, which is fixed to the inside of the outer shell 1. The outside of the support block 71 is fixedly connected to a sleeve 72, and the inside of the sleeve 72 is slidably connected to a sliding plate 74. The outside of the sliding plate 74 is fixedly connected to a connecting column 75. The end of the connecting column 75 extends to the outside of the sleeve 72 and is fixedly connected to a fixing plate 76. The outside of the fixing plate 76 is fixedly connected to a positioning plate 77, and the bottom of the positioning plate 77 is fixedly connected to a connecting plate 78. A spring 73 is fixedly connected between the sliding plate 74 and the support block 71. The spring 73 drives the sliding plate 74 to slide inside the sleeve 72. The sliding plate 74 pushes the connecting column 75 to move the fixing plate 76. The fixing plate 76 pushes the positioning plate 77 to contact and fix the position of the inner shell 5, so that the inner shell can be stably supported during use.

[0028] Furthermore, the support assembly 9 includes a fixing ring 93, which is fixed inside the outer shell 1. The top of the fixing ring 93 is fixedly connected to a fixing column 94, and the top of the fixing column 94 is fixedly connected to a support frame 92. The support frame 92 is fixedly connected to the support ring 91 inside. The support frame 92 is fixedly connected to the rubber ring 95 inside. The top of the support ring 91 contacts the bottom of the inner shell 5. The support frame 92 has a U-shaped main cross-section. The inner shell 5 slides to the top of the support ring 91. The outer portion of the inner shell 5 contacts the outer portion of the rubber ring 95. The bottom of the inner shell 5 is located inside the support frame 92, supporting the inner shell 5 to prevent contact and collision with the outer shell 1. The rubber ring 95 is made of nitrile rubber, which is an oil-resistant and low-temperature resistant rubber material with good low-temperature elasticity. It can remain soft and elastic in low-temperature environments and is not easily hardened or cracked.

[0029] Furthermore, the monitoring component 10 includes a detection box 101, which is fixed on the top of the inner shell 5. A pressure sensor 102 is fixedly installed inside the detection box 101, and a temperature sensor 103 is fixedly installed inside the detection box 101. The probes of the pressure sensor 102 and the temperature sensor 103 extend to the interior of the inner shell 5. An observer 104 is fixedly installed on the top of the pressure sensor 102 and the temperature sensor 103. The top of the observer 104 extends to the outside of the outer shell 1. The internal data is observed from the observer 104 through the detection of the probes of the pressure sensor 102 and the temperature sensor 103, which is convenient for observing the condition of the internal liquid at any time.

[0030] In this embodiment, when installing the storage tank, the outer shell 1 is not sealed first, and the inner shell 5 is placed inside the outer shell 1, so that the connecting block 83 drives the slider 82 to slide inside the guide rail 81, and the inner shell 5 slides to the top of the support ring 91. The outside of the inner shell 5 contacts the outside of the rubber ring 95, and the bottom of the inner shell 5 is located inside the support frame 92. The spring 73 drives the sliding plate 74 to slide inside the sleeve 72. The sliding plate 74 moves the fixed plate 76 by pushing the connecting column 75. The fixed plate 76 pushes the positioning plate 77 to contact and fix the position of the inner shell 5, and the outer shell 1 and the inner shell 5 are filled with a thermal insulation layer 6. The outer shell 1 is sealed and a sealing cover is installed. The internal data is observed from the observer 104 through the detection of the pressure sensor 102 and the temperature sensor 103 probes. When in use, the inner shell can be stably supported and protected.

[0031] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A sandwich cryogenic liquid storage tank, characterized in that: The invention comprises an outer shell (1), an inner shell (5) is installed inside the outer shell (1), a support assembly (9) is installed inside the outer shell (1), a positioning assembly (7) is installed inside the outer shell (1), a sliding assembly (8) is installed inside the outer shell (1), the outer shell (1) and the bottom plate (2) are filled with a thermal insulation layer (6), and a supervision assembly (10) is installed on the top of the inner shell (5).

2. The sandwich cryogenic liquid storage tank according to claim 1, characterized in that: The sliding assembly (8) comprises a guide rail (81), the guide rail (81) being fixed inside the outer shell (1), the guide rail (81) being slidably connected to a slider (82) inside, the slider (82) being fixedly connected to a connecting block (83) outside, and the connecting block (83) being fixedly connected to the outside of the inner shell (5) outside.

3. The sandwich cryogenic liquid storage tank according to claim 1, characterized in that: The positioning assembly (7) includes a support block (71), the support block (71) is fixed inside the housing (1), the support block (71) is fixedly connected to a sleeve (72) on the outside, the sleeve (72) is slidably connected to a sliding plate (74) on the inside, the sliding plate (74) is fixedly connected to a connecting column (75) on the outside, the end of the connecting column (75) extends to the outside of the sleeve (72) and is fixedly connected to a fixing plate (76), the fixing plate (76) is fixedly connected to a positioning plate (77) on the outside, the bottom of the positioning plate (77) is fixedly connected to a connecting plate (78), and a spring (73) is fixedly connected between the sliding plate (74) and the support block (71).

4. The sandwich cryogenic liquid storage tank according to claim 1, characterized in that: The support assembly (9) comprises a fixing ring (93), the fixing ring (93) being fixed inside the housing (1), the fixing column (94) being fixedly connected to the top of the fixing ring (93), the fixing column (94) being fixedly connected to the top of the support frame (92), the support ring (91) being fixedly connected inside the support frame (92), and the rubber ring (95) being fixedly connected inside the support frame (92).

5. The sandwich cryogenic liquid storage tank according to claim 1, characterized in that: The monitoring assembly (10) comprises a detection box (101), the detection box (101) being fixed on the top of the inner shell (5), a pressure sensor (102) being fixedly installed inside the detection box (101), a temperature sensor (103) being fixedly installed inside the detection box (101), probes of the pressure sensor (102) and the temperature sensor (103) extending into the interior of the inner shell (5), an observer (104) being fixedly installed on the top of the pressure sensor (102) and the temperature sensor (103), and a top end of the observer (104) extending to the outside of the outer shell (1).

6. The sandwich cryogenic liquid storage tank according to claim 4, characterized in that: The top of the support ring (91) contacts the bottom of the inner shell (5), and the main cross-section of the support frame (92) is U-shaped.

7. The sandwich cryogenic liquid storage tank according to claim 1, characterized in that: The bottom of the housing (1) is fixedly connected to a support column (3), and the bottom of the support column (3) is fixedly connected to a bottom plate (2).

8. The sandwich cryogenic liquid storage tank according to claim 1, characterized in that: A sealing cover (4) is fixedly installed inside the housing (1).

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