Thermal insulation low-temperature storage tank

Abstract

The utility model discloses a heat insulation and preservation low-temperature storage tank which comprises an outer tank, a heat insulation and preservation layer is placed in the outer tank, one side of the outer tank is communicated with an exhaust valve, a tank cover is arranged on the top of the outer tank, a first filling pipe is fixedly installed in the tank cover, and a second filling pipe is fixedly installed in the first filling pipe. A user installs the tank cover and the outer tank through a limiting bolt and a limiting nut and then communicates with a vacuum pump through an exhaust valve, so that the vacuum pump vacuumizes the interior of the outer tank, heat insulation and heat preservation can be achieved through a heat insulation and heat preservation layer and vacuum, and therefore the heat insulation and heat preservation effect of the device can be effectively improved; a user can take down a limiting bolt and a limiting nut, then take down a control valve from the bottom of a discharging pipe, pull a tank cover to drive the inner tank to be taken out, and take down the inner tank from the bottom of the tank cover through cooperation of a second filling pipe and a first filling pipe, so that the user can effectively and conveniently disassemble and maintain the device.

Description

Technical Field

[0001] The utility model belongs to the technical field of low-temperature storage tanks, and particularly relates to a heat-insulating low-temperature storage tank. Background Art

[0002] Cryogenic storage tanks are vertical or horizontal double-layer vacuum insulated storage tanks used to store liquid oxygen, nitrogen, argon, carbon dioxide and other media.

[0003] At present, the Chinese utility model with the announcement number CN217109110U discloses a low-temperature storage tank, including an inner tank body, an outer tank body, an insulation sleeve, a spiral water pipe, a liquid storage tank, a cooler, a first through pipe, a second through pipe, a motor, a worm gear mechanism, a disc, and a pipe. The inner tank body is mounted with an outer tank body, and an insulation sleeve is installed on the outer tank body, and a cavity is opened in the insulation sleeve; the spiral water pipe is wound around the outside of the inner tank body, the water outlet of the liquid storage tank is connected to the water inlet of the cooler, and the water outlet of the vacuum pump is connected to the water inlet of the spiral water pipe; one end of the first through pipe is fixedly connected to the disc, and the other end is rotatably connected to the second through pipe, the motor drives the first through pipe to rotate through the worm gear mechanism, and a plurality of pipes are inserted at the bottom of the disc, and the pipes are connected to the cavity in the disc. The advantages are: the low-temperature storage tank adopts a three-layer structure of an inner tank body, an outer tank body, and an insulation sleeve to isolate the temperature, and the insulation sleeve is a hollow structure to improve the insulation effect. The coolant cools the inner tank to ensure the stability of the environment inside the tank.

[0004] However, the existing low-temperature storage tank insulation device cannot effectively improve its insulation effect, and cannot effectively facilitate users to disassemble and maintain it. In order to solve the above problems, we provide a low-temperature storage tank with insulation. Utility Model Content

[0005] The purpose of the utility model is to provide a low-temperature storage tank with heat insulation to solve the problems raised by the above-mentioned background technology.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A heat-insulating low-temperature storage tank comprises an outer tank, a heat-insulating layer is placed inside the outer tank, one side of the outer tank is connected to an exhaust valve, a tank cover is provided on the top of the outer tank, a filling pipe 1 is fixedly installed inside the tank cover, an inner tank is provided inside the outer tank, a filling pipe 2 is connected to the top of the inner tank, a discharge pipe is connected to the bottom of the inner tank, a sealing sleeve is fixedly installed on the bottom of the outer tank, and a negative pressure gauge is connected to the top of the tank cover.

[0008] The above technical solution is adopted: the user installs the tank cover and the outer tank through the limit bolts and the limit nuts, and then connects them with the vacuum pump through the exhaust valve, so that the vacuum pump evacuates the inside of the outer tank, and the thermal insulation layer and the vacuum can play the role of thermal insulation, thereby effectively improving the thermal insulation effect of the device. The user can remove the limit bolts and the limit nuts, and then remove the control valve from the bottom of the discharge pipe, and then pull the tank cover to drive the inner tank to take out, and then remove the inner tank from the bottom of the tank cover through the cooperation of filling pipe two and filling pipe one, so that the user can effectively disassemble and maintain the device.

[0009] The utility model is further configured that a control valve is provided at the bottom of the discharge pipe, and the top of the control valve is communicated with the discharge pipe.

[0010] By adopting the above technical solution: the discharge pipe can be effectively controlled by setting a control valve.

[0011] The utility model is further configured that a connecting piece is bolted to the bottom of the outer tank, and a supporting leg is bolted to the bottom of the connecting piece.

[0012] By adopting the above technical solution, the device can be effectively supported by providing supporting legs.

[0013] The utility model is further configured that the surface of the outer tank is bolted with a lifting lug, and a sealing gasket is placed between the outer tank and the tank cover.

[0014] By adopting the above technical solution, the device can be effectively hoisted by arranging lifting ears.

[0015] The utility model is further configured that the inner parts of the outer tank and the tank cover are sleeved with limit bolts, and the surfaces of the limit bolts are threadedly connected with limit nuts.

[0016] By adopting the above technical solution, the tank cover can be effectively installed by setting the limit bolts.

[0017] In summary, the utility model has the following beneficial effects:

[0018] 1. The user installs the tank cover and the outer tank through the limit bolts and limit nuts, and then connects with the vacuum pump through the exhaust valve, so that the vacuum pump can evacuate the inside of the outer tank, and the heat insulation layer and vacuum can be used to insulate and heat-preserve, thereby effectively improving the heat insulation and heat preservation effect of the device;

[0019] 2. The user can remove the limit bolt and the limit nut, then remove the control valve from the bottom of the discharge pipe, then pull the tank cover to drive the inner tank to take out, and then remove the inner tank from the bottom of the tank cover through the cooperation of filling pipe 2 and filling pipe 1, so that the user can effectively disassemble and maintain the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0021] Figure 2 It is a structural sectional view of the utility model.

[0022] Figure numerals: 1. outer tank; 2. thermal insulation layer; 3. exhaust valve; 4. tank cover; 5. filling pipe one; 6. inner tank; 7. filling pipe two; 8. sealing sleeve; 9. discharge pipe; 10. negative pressure gauge; 11. control valve; 12. connecting piece; 13. supporting leg; 14. lifting ear; 15. limit bolt; 16. limit nut. DETAILED DESCRIPTION

[0023] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0024] Embodiment 1:

[0025] refer to Figure 1 and Figure 2 A heat-insulating low-temperature storage tank comprises an outer tank 1, a heat-insulating layer 2 is placed inside the outer tank 1, an exhaust valve 3 is connected to one side of the outer tank 1, and a tank cover 4 is arranged on the top of the outer tank 1. The user installs the tank cover 4 with the outer tank 1 through a limit bolt 15 and a limit nut 16, and then connects with the vacuum pump through the exhaust valve 3, so that the vacuum pump evacuates the inside of the outer tank 1, and the heat-insulating layer 2 and the vacuum can achieve heat insulation, thereby effectively improving the heat-insulating effect of the device.

[0026] refer to Figure 1 A control valve 11 is provided at the bottom of the discharge pipe 9, and the top of the control valve 11 is connected to the discharge pipe 9. By providing the control valve 11, the discharge pipe 9 can be effectively controlled.

[0027] refer to Figure 1 The bottom of the outer tank 1 is bolted with a connector 12, and the bottom of the connector 12 is bolted with a support leg 13. By providing the support leg 13, the device can be effectively supported.

[0028] Brief description of the usage process: the user installs the tank cover 4 and the outer tank 1 through the limit bolts 15 and the limit nuts 16, and then connects with the vacuum pump through the exhaust valve 3, so that the vacuum pump evacuates the interior of the outer tank 1, and the thermal insulation layer 2 and the vacuum can achieve thermal insulation, thereby effectively improving the thermal insulation effect of the device.

[0029] Embodiment 2:

[0030] refer to Figure 1 and Figure 2 A filling pipe 5 is fixedly installed inside the tank cover 4, an inner tank 6 is arranged inside the outer tank 1, the top of the inner tank 6 is connected with a filling pipe 2 7, the bottom of the inner tank 6 is connected with a discharge pipe 9, a sealing sleeve 8 is fixedly installed at the bottom of the outer tank 1, and the top of the tank cover 4 is connected with a negative pressure gauge 10. The user can remove the limit bolt 15 and the limit nut 16, and then remove the control valve 11 from the bottom of the discharge pipe 9, and then pull the tank cover 4 to drive the inner tank 6 to take out, and then remove the inner tank 6 from the bottom of the tank cover 4 through the cooperation of the filling pipe 2 7 and the filling pipe 1 5, so that the user can effectively disassemble and maintain the device.

[0031] refer to Figure 1 , the surface bolt of the outer tank 1

[0032] A lifting lug 14 is connected, and a sealing gasket is placed between the outer tank 1 and the tank cover 4. By providing the lifting lug 14, the device can be effectively lifted.

[0033] refer to Figure 1 The inner parts of the outer tank 1 and the tank cover 4 are sleeved with a limiting bolt 15, and the surface of the limiting bolt 15 is threadedly connected with a limiting nut 16. By setting the limiting bolt 15, the tank cover 4 can be effectively installed.

[0034] Brief description of the usage process: the user can remove the limit bolt 15 and the limit nut 16, then remove the control valve 11 from the bottom of the discharge pipe 9, and then pull the tank cover 4 to drive the inner tank 6 to be taken out, and then remove the inner tank 6 from the bottom of the tank cover 4 through the cooperation of the filling pipe 2 7 and the filling pipe 1 5, so that the user can effectively disassemble and maintain the device.

Claims

1. A heat-insulating cryogenic storage tank, comprising an outer tank (1), characterized in that: A heat insulating layer (2) is placed inside the outer tank (1); one side of the outer tank (1) is connected to an exhaust valve (3); a tank cover (4) is arranged on the top of the outer tank (1); a filling pipe (5) is fixedly installed inside the tank cover (4); an inner tank (6) is arranged inside the outer tank (1); the top of the inner tank (6) is connected to a filling pipe (7); the bottom of the inner tank (6) is connected to a discharge pipe (9); a sealing sleeve (8) is fixedly installed on the bottom of the outer tank (1); and the top of the tank cover (4) is connected to a negative pressure gauge (10).

2. A heat-insulating low-temperature storage tank according to claim 1, characterized in that: A control valve (11) is provided at the bottom of the discharge pipe (9), and the top of the control valve (11) is connected to the discharge pipe (9).

3. The heat-insulating low-temperature storage tank according to claim 1, characterized in that: A connecting piece (12) is bolted to the bottom of the outer tank (1), and a supporting leg (13) is bolted to the bottom of the connecting piece (12).

4. The heat-insulating low-temperature storage tank according to claim 1, characterized in that: A lifting lug (14) is bolted to the surface of the outer tank (1), and a sealing gasket is placed between the outer tank (1) and the tank cover (4).

5. The heat-insulating low-temperature storage tank according to claim 1, characterized in that: The inner parts of the outer tank (1) and the tank cover (4) are sleeved with a limiting bolt (15), and the surface of the limiting bolt (15) is threadedly connected with a limiting nut (16).

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