Soil covering tank liquid outlet assembly and soil covering container

Abstract

The utility model provides a liquid outlet assembly of a soil covering tank and a soil covering container. The liquid outlet assembly of the soil covering tank comprises a flange piece, a liquid outlet pipe and a detection assembly, wherein the flange piece is hermetically connected to and communicated with the liquid outlet of the soil covering tank, one end of the liquid outlet pipe is communicated with the flange piece, and the other end is communicated with an external pipeline. The liquid outlet pipe comprises an inner pipe and an outer pipe, the outer pipe is connected to the peripheral side of the inner pipe in a sleeving mode, and a sealed space is formed between the inner pipe and the outer pipe. The detection assembly is fixed to the outer pipe and communicated with the sealed space so as to detect gas components in the sealed space and further detect whether the inner pipe leaks or not, and the sealing performance and use safety of the liquid outlet pipe are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of soil covering tanks, in particular to a liquid outlet assembly of a soil covering tank and a soil covering container. Background Art

[0002] Earth-covered storage refers to pressurizing liquefied petroleum gas at room temperature and storing it in a tank, placing the tank on the ground, and backfilling it appropriately. This technology is very suitable for storing flammable and explosive liquid materials. It can protect the tank body and prevent the heat and shock waves from combustion and explosion from affecting other tank bodies, which can effectively reduce risks. The tank bodies can be installed close to each other to save space. In addition, as the advantages of safe storage of earth-covered tanks gradually become more prominent, they are widely used in LPG storage and distribution stations and large petrochemical enterprises.

[0003] However, since the earth-covering tank is buried in the covering soil layer, it is difficult to repair the bottom liquid outlet under the sand, and it is also difficult to troubleshoot leakage of the liquid outlet, thereby affecting the safe use of the earth-covering tank. Utility Model Content

[0004] The utility model aims to provide a liquid outlet assembly of an earth-covering tank, which can detect leakage of the liquid outlet to ensure the safety of the liquid outlet.

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

[0006] According to one aspect of the utility model, the utility model provides a liquid outlet assembly of a soil-covering tank, which is connected to the liquid outlet of the soil-covering tank, and the liquid outlet assembly of the soil-covering tank includes: a flange, which is sealed and connected to the liquid outlet of the soil-covering tank; a liquid outlet pipe, one end of which is connected to the flange, and the other end is connected to an external pipeline; the liquid outlet pipe includes an inner tube and an outer tube; the inner tube and the outer tube are sealed and connected to the flange at one end facing the flange; the outer tube is sealed and connected to the inner tube at one end facing away from the flange; the outer tube is wrapped around the outer side of the inner tube , and a closed sealed space is formed between the outer wall of the inner tube and the inner wall of the outer tube; and a detection component, which is fixed on the outer tube and connected to the sealed space, so as to detect the gas composition in the sealed space; wherein, the end of the flange member away from the earth-covering pot is provided with a protruding inner connecting wall and an outer connecting wall; the inner connecting wall and the outer connecting wall are both annular structures, and the outer connecting wall is arranged on the radial outer side of the inner connecting wall; the inner connecting wall is connected to the end of the inner tube, and the outer connecting wall is connected to the end of the outer tube.

[0007] In one embodiment of the present application, the liquid outlet pipe also includes a sealing plate; the sealing plate is arranged in a ring shape; the sealing plate is connected between the inner tube and the outer tube, and is located at the end of the outer tube away from the flange member, so that the sealing plate, the inner tube, the outer tube and the flange member form the sealed space.

[0008] In one embodiment of the present application, the flange member further comprises a flange portion; the flange portion is located on a side of the flange member facing away from the inner connecting wall and the outer connecting wall; the flange portion is circumferentially arranged; and the flange portion is embedded in the soil covering pot.

[0009] In one embodiment of the present application, an expansion portion is provided on the outer tube; the expansion portion is arranged in a ring shape, so that when the inner tube moves relative to the outer tube, the expansion portion can be stretched or compressed along the axial direction of the liquid outlet tube, so that the outer tube can adjust its own length.

[0010] In one embodiment of the present application, the liquid outlet assembly of the earth covering tank also includes a detection tube; the detection tube is installed on the outer wall of the outer tube and is located at the outlet end of the liquid outlet tube; the detection tube is connected to the sealed space, and the end of the detection pipe away from the outer tube is connected to the detection assembly, so that the detection assembly can be connected to the sealed space through the detection tube.

[0011] In one embodiment of the present application, the free end of the inner connecting wall exceeds the free end of the outer connecting wall in a direction away from the flange member, so as to be used for welding the inner tube.

[0012] In one embodiment of the present application, the liquid outlet pipe also includes a push piece; the push piece is accommodated in the sealed space and pushes between the outer tube wall of the inner tube and the inner tube wall of the outer tube, so that the inner tube and the outer tube are spaced apart.

[0013] In one embodiment of the present application, the earth-covering tank liquid outlet assembly further includes a support assembly; one end of the support assembly is connected to the outside of the liquid outlet pipe, and the other end is connected to the earth-covering tank for supporting the liquid outlet pipe.

[0014] In one embodiment of the present application, the support assembly includes a support ring and a support connecting rod; the support ring is sleeved on the outer tube, and the support connecting rod is connected between the support ring and the soil covering tank to support the liquid outlet pipe.

[0015] The present application also provides a soil covering container, which includes a soil covering tank and any of the soil covering tank liquid outlet assemblies; the soil covering tank is used to load a medium; the soil covering tank liquid outlet assembly is connected to the liquid outlet of the soil covering tank for connecting to an external pipeline.

[0016] It can be seen from the above technical solution that the utility model has at least the following advantages and positive effects:

[0017] In the utility model, the liquid outlet assembly of the earth-covering tank includes a flange, a liquid outlet pipe and a detection assembly. The flange is sealed and connected to the liquid outlet of the earth-covering tank, one end of the liquid outlet pipe is connected to the flange, and the other end is connected to the external pipeline. The liquid outlet pipe includes an inner tube and an outer tube, the outer tube is sleeved on the outer peripheral side of the inner tube, and a sealed space is formed between the inner tube and the outer tube. The detection assembly is fixed on the outer tube and connected to the sealed space to detect the gas composition in the sealed space, and then detect whether the inner tube is leaking, so as to ensure the sealing and use safety of the liquid outlet pipe.

[0018] At the same time, an inner connecting wall and an outer connecting wall are arranged on the side of the flange away from the soil covering tank, and the outer connecting wall is arranged on the radial outer side of the inner connecting wall, so that the inner connecting wall and the outer connecting wall are arranged at intervals. The inner connecting wall is connected to the inner tube, and the outer connecting wall is connected to the outer tube, so that the ends of the inner tube and the outer tube are sealed and connected to the end of the flange. At the same time, one end of the outer tube away from the flange is sealed and connected to the inner tube, so that a closed sealing space is formed between the inner tube, the outer tube and the flange, so that it is convenient for the detection component to detect the sealing of the inner tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of a liquid outlet assembly of an earth covering tank according to an embodiment of the utility model.

[0020] Figure 2 yes Figure 1 A bottom view of the flange member of the earth covering tank outlet assembly.

[0021] Figure 3 yes Figure 1 A cross-sectional view of a flange member of a liquid outlet assembly of a covering tank.

[0022] The following are the descriptions of the reference numerals:

[0023] 1-soil covering tank; 10-flange member; 11-inner connecting wall; 12-outer connecting wall; 13-flange portion; 14-sealing hole; 20-liquid outlet pipe; 21-inner pipe; 22-outer pipe; 23-sealed space; 24-sealing plate; 25-connecting flange; 31-detection tube; 32-butt member; 33-support assembly; 34-support ring; 35-support connecting rod; 221-expansion portion. DETAILED DESCRIPTION

[0024] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially for illustrative purposes rather than for limiting the present invention.

[0025] In the description of the present invention, it should be understood that in the embodiments shown in the drawings, the indications of directions or positional relationships (such as up, down, left, right, front and back, etc.) are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, the indications of these directions also change accordingly.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] Since the earth-covered tank is buried in the soil layer, it is difficult to repair the bottom liquid outlet under the sand, and it is also difficult to check the leakage of the liquid outlet, which affects the safe use of the earth-covered tank. Therefore, a liquid outlet assembly of the earth-covered tank is proposed to solve the above problems.

[0028] The scheme is further illustrated by the following examples:

[0029] Figure 1 It is a schematic diagram of a liquid outlet assembly of an earth covering tank according to an embodiment of the utility model.

[0030] See also Figure 1 The present application also provides a soil-covered container, which may include a soil-covered tank 1 and a soil-covered tank liquid outlet assembly. The soil-covered tank 1 is used to load a medium, such as petroleum and LPG. The soil-covered tank 1 may be partially disposed in the soil-covered layer, or may be completely buried in the soil-covered layer. At the same time, the soil-covered tank liquid outlet assembly is connected to the liquid outlet of the soil-covered tank 1 for connecting to an external pipeline. Furthermore, the soil-covered tank liquid outlet assembly may be partially buried in the soil-covered layer, that is, the liquid inlet of the soil-covered tank liquid outlet assembly is buried in the soil-covered layer, while the liquid outlet is exposed from the soil-covered layer, so as to facilitate the connection between the soil-covered tank liquid outlet assembly and the external pipeline, and facilitate the transmission of the medium.

[0031] See also Figure 1 The liquid outlet assembly of the earth covering tank may include a flange member 10, a liquid outlet pipe 20 and a detection assembly.

[0032] Among them, the flange 10 can be sealed and connected to the liquid outlet of the earth-covering tank 1, that is, one end of the flange 10 is connected to the earth-covering tank 1, and the free end of the flange 10 can be used to connect to an external pipeline, so that the earth-covering tank 1 can convey the medium to the external pipeline through the flange 10.

[0033] One end of the liquid outlet pipe 20 can be connected to the end of the flange 10 away from the earth-covering tank 1, and the other end of the liquid outlet pipe 20 is connected to an external pipeline, so that the external pipeline can be connected to the earth-covering tank 1 through the liquid outlet pipe 20 and the flange 10.

[0034] The liquid outlet pipe 20 may include an inner pipe 21 and an outer pipe 22. The outer pipe 22 is wrapped around the outer side of the inner pipe 21, and the inner pipe 21 and the outer pipe 22 are sealedly connected to the flange member 10 at one end thereof, and the outer pipe 22 is sealedly connected to the inner pipe 21 at one end thereof away from the flange member 10, so that a sealed space 23 is formed between the outer wall of the inner pipe 21 and the inner wall of the outer pipe 22.

[0035] The detection assembly (not shown) can be fixed on the outer tube 22 and communicate with the sealed space 23. The detection assembly can be used to detect the gas composition in the sealed space.

[0036] It should be noted that, since the sealed space 23 is located on the outside of the inner tube 21, when the inner tube 21 is not sufficiently sealed and leaks, the medium in the inner tube 21 will be transferred into the sealed space 23, causing the gas composition in the sealed space 23 to change. Therefore, by monitoring the sealed space 23 with the detection component, it is possible to determine whether the medium leaks inside the inner tube 21, thereby ensuring the safety of the inner tube 21.

[0037] At the same time, since the liquid outlet pipe 20 is partially buried in the covering layer, the detection component can be set outside the covering layer, so that the detection component can monitor the sealing condition of the inner tube 21 in real time, and facilitate the staff to judge whether the inner tube 21 is leaking, thereby eliminating the safety hazard of the liquid outlet pipe 20.

[0038] See also Figure 1 In this embodiment, the inner tube 21 and the outer tube 22 can be set as metal pipes to ensure the structural strength of the liquid outlet pipe 20 and avoid the inner tube 21 and the outer tube 22 from rupturing when the liquid outlet pipe 20 is affected by external force, thereby affecting the sealing of the inner tube 21 and the outer tube 22.

[0039] Of course, in some other embodiments, the inner tube 21 and the outer tube 22 can be configured as plastic pipes to be able to transport the medium.

[0040] See also Figure 1The end of the liquid outlet pipe 20 away from the flange 10 is provided with a connecting flange 25. The connecting flange 25 is connected to the end of the inner pipe 21 away from the flange 10, so that the liquid outlet pipe 20 can be connected to the external pipeline through the connecting flange 25.

[0041] Figure 2 yes Figure 1 A bottom view of the flange member of the earth covering tank outlet assembly. Figure 3 yes Figure 1 A cross-sectional view of a flange member of a liquid outlet assembly of a covering tank.

[0042] See also Figure 1 , Figure 2 and Figure 3 , the flange 10 may be provided with an inner connecting wall 11 and an outer connecting wall 12. The inner connecting wall 11 and the outer connecting wall 12 are provided on the end of the flange 10 away from the earth covering pot 1, and both the inner connecting wall 11 and the outer connecting wall 12 protrude and extend from the end of the flange 10 in a direction away from the flange 10. The inner connecting wall 11 and the outer connecting wall 12 are both annular structures, and the outer connecting wall 12 is provided on the radially outer side of the inner connecting wall 11, so that the inner connecting wall 11 and the outer connecting wall 12 are arranged at intervals. At the same time, the inner connecting wall 11 is sealed to connect the end of the inner tube 21, and the outer connecting wall 12 is sealed to connect the end of the outer tube 22, so that the end of the liquid discharge pipe 20 facing the flange 10 is sealed and connected to the flange 10.

[0043] In this embodiment, the inner connecting wall 11 is welded to the end of the inner tube 21 so that the inner tube 21 can be sealed and communicated with the inner connecting wall 11. Similarly, the outer connecting wall 12 is welded to the end of the outer tube 22 so that the outer tube 22 can be sealed and communicated with the outer connecting wall 12.

[0044] In some other embodiments, the inner tube 21 may also be threadedly connected to the inner connecting wall 11 through a connector, so that the inner tube 21 can be sealed and communicated with the inner connecting wall 11. Similarly, the outer tube 22 may also be threadedly connected to the outer connecting wall 12 through a connector, so that the outer tube 22 can be sealed and communicated with the outer connecting wall 12.

[0045] In this embodiment, the free end of the inner connecting wall 11 exceeds the free end of the outer connecting wall 12 in the direction away from the flange 10, so as to be used for welding the inner tube 21. Since the free end of the inner connecting wall 11 is used to connect the inner tube 21, the free end of the inner connecting wall 11 exceeds the free end of the outer connecting wall 12 in the direction away from the flange 10, which can facilitate the welding of the inner connecting wall 11 and the inner tube 21 and avoid the outer connecting wall 12 from affecting the welding process of the inner tube 21 and the inner connecting wall 11.

[0046] See also Figure 1 , Figure 2 and Figure 3The flange member 10 may further include a flange portion 13. The flange portion 13 is located on the side of the flange member 10 facing away from the inner connecting wall 11 and the outer connecting wall 12, and the flange portion 13 is arranged circumferentially. The flange portion 13 is embedded in the soil covering pot 1, that is, the flange portion 13 is welded to the pot wall of the soil covering pot 1, and the side of the flange portion 13 facing the soil covering pot 1 is kept flush with the inner wall of the soil covering pot 1 to improve the connection strength between the flange member 10 and the soil covering pot 1. Specifically, the flange portion 13 is welded to the pot wall of the soil covering pot 1 to seal the flange member 10 to the soil covering pot 1.

[0047] The flange member 10 may also be provided with a sealing hole 14. One end of the sealing hole 14 is connected to the sealing space 23, and the other end is connected to the outside, so that the sealing hole 14 can be used for exhaust when the water pressure test is performed through the sealing space 23. Specifically, one end of the sealing hole 14 connected to the sealing space 23 is located between the inner connecting wall 11 and the outer connecting wall 12, and the other end of the sealing hole 14 is arranged on the peripheral side of the flange member 10 and is located between the outer connecting wall 12 and the flange portion 13.

[0048] In daily use, the sealing hole 14 is closed by a closing plug to ensure the airtightness of the sealing space 23 .

[0049] It should be noted that a through communication hole may be provided on the flange 10, and the inner tube 21 is connected to the interior of the soil covering tank 1 through the communication hole so as to transport the medium.

[0050] In this embodiment, the flange member 10 is configured as a metal member so that the flange member 10 can be welded to the earth covering tank 1 and the liquid outlet pipe 20 respectively.

[0051] See also Figure 1 The liquid outlet pipe 20 may further include a sealing plate 24 .

[0052] The sealing plate 24 is arranged in an annular shape, and is connected between the inner tube 21 and the outer tube 22, and is located at the end of the outer tube 22 away from the flange 10, so that the sealing plate 24, the inner tube 21, the outer tube 22 and the flange 10 form a sealed space 23. That is, the sealing plate 24 is sealed between the end of the outer tube 22 and the outer wall of the inner tube 21, so that a sealed space 23 is formed between the inner tube 21 and the outer tube 22.

[0053] The outer tube 22 may be provided with an expansion portion 221. Specifically, the expansion portion 221 is provided in an annular shape, and both ends of the expansion portion 221 are connected to the outer tube 22, so that when the inner tube 21 moves relative to the outer tube 22, the expansion portion 221 can be stretched or compressed along the axial direction of the liquid outlet tube 20, so that the outer tube 22 can adjust its own length. That is, the expansion portion 221 is provided to compensate for the displacement of the outer tube 22 relative to the inner tube 21, so as to avoid stress concentration on the outer tube 22 when the inner tube 21 and the outer tube 22 are relatively displaced due to different temperatures, and to avoid affecting the connection between the ends of the inner tube 21 and the outer tube 22, so as to ensure the sealing of the sealed space 23.

[0054] The expansion portion 221 may be made of carbon steel or stainless steel, so that both ends of the expansion portion 221 can extend along the axial direction of the liquid outlet pipe 20 .

[0055] See also Figure 1 The liquid outlet assembly of the soil covering tank may further include a detection tube 31 .

[0056] The detection tube 31 is installed on the outer wall of the outer tube 22 and is located at the outlet end of the liquid outlet pipe 20. That is, the detection tube 31 is arranged at the liquid outlet of the liquid outlet pipe 20 so that the detection tube 31 can extend out of the covering layer.

[0057] At the same time, the detection tube 31 is connected to the sealed space 23, and the end of the detection tube 31 away from the outer tube 22 is connected to a detection component, so that the detection component can be connected to the sealed space 23 through the detection tube 31, and the detection component can be located outside the covering layer, thereby facilitating the staff to read the detection value of the detection component.

[0058] See also Figure 1 The liquid outlet pipe 20 may further include a resisting member 32 .

[0059] In this embodiment, the abutment 32 is accommodated in the sealed space 23 and abuts between the outer tube wall of the inner tube 21 and the inner tube wall of the outer tube 22 to support between the inner tube 21 and the outer tube 22 to avoid relative depression of the inner tube 21 and the outer tube 22, thereby enabling the inner tube 21 and the outer tube 22 to be spaced apart to ensure that the inside of the sealed space 23 remains connected.

[0060] See also Figure 1 The earth-covering tank liquid outlet assembly may further include a support assembly 33. One end of the support assembly 33 is connected to the outside of the liquid outlet pipe 20, and the other end is connected to the earth-covering tank 1, so as to support the liquid outlet pipe 20, prevent the liquid outlet pipe 20 from shaking relative to the earth-covering tank 1, and thus ensure the stability of the connection between the liquid outlet pipe 20 and the earth-covering tank 1.

[0061] Specifically, the support assembly 33 may include a support ring 34 and a support link 35 .

[0062] The support ring 34 is sleeved on the outer tube 22 , and the support connecting rod 35 is connected between the support ring 34 and the soil covering tank 1 to support the liquid outlet pipe 20 .

[0063] In summary, the earth-covering tank liquid outlet assembly is connected to the earth-covering tank 1 through the liquid outlet pipe 20 and the flange 10, so that the earth-covering tank 1 can be connected to the external pipeline through the liquid outlet pipe 20 and the flange 10, thereby transporting the medium. At the same time, the liquid outlet pipe 20 is provided with an inner tube 21 and an outer tube 22, and the outer tube 22 is sleeved on the outer side of the inner tube 21, and a sealed space 23 is formed between the inner tube 21 and the outer tube 22, so that the detection assembly can determine whether the inner tube 21 is leaking by detecting the gas composition in the sealed space 23, thereby ensuring the safety of the use of the liquid outlet pipe 20.

[0064] Although the utility model has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the utility model can be implemented in a variety of forms without departing from the spirit or essence of the utility model, it should be understood that the above-mentioned embodiments are not limited to any of the aforementioned details, but should be widely interpreted within the spirit and scope defined by the attached claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the attached claims.

Claims

1. A liquid outlet assembly of a soil covering tank, connected to the liquid outlet of the soil covering tank, characterized in that: The earth covering tank liquid outlet assembly comprises: A flange member, which is sealed and connected to the liquid outlet of the soil covering tank; a liquid outlet pipe, one end of which is connected to the flange member, and the other end of which is connected to an external pipeline; the liquid outlet pipe comprises an inner pipe and an outer pipe; the inner pipe and the outer pipe are sealedly connected to the flange member at one end facing the flange member; the outer pipe is sealedly connected to the inner pipe at one end facing away from the flange member; the outer pipe is wrapped around the outer side of the inner pipe, and a sealed space is formed between the outer wall of the inner pipe and the inner wall of the outer pipe; and a detection assembly, which is fixed on the outer tube and communicated with the sealed space to detect the gas composition in the sealed space; Among them, the end of the flange member facing away from the soil covering pot is provided with a protruding inner connecting wall and an outer connecting wall; the inner connecting wall and the outer connecting wall are both annular structures, and the outer connecting wall is arranged on the radial outer side of the inner connecting wall; the inner connecting wall is connected to the end of the inner tube, and the outer connecting wall is connected to the end of the outer tube.

2. The liquid outlet assembly of the earth covering tank according to claim 1, characterized in that: The liquid outlet pipe also includes a sealing plate; the sealing plate is arranged in an annular shape; the sealing plate is connected between the inner tube and the outer tube and is located at the end of the outer tube away from the flange member, so that the sealing plate, the inner tube, the outer tube and the flange member form the sealed space.

3. The liquid outlet assembly of the earth covering tank according to claim 1, characterized in that: The flange member further comprises a flange portion; the flange portion is located on a side of the flange member facing away from the inner connecting wall and the outer connecting wall; the flange portion is circumferentially arranged; and the flange portion is embedded in the soil covering pot.

4. The liquid outlet assembly of the earth covering tank according to claim 1, characterized in that: The outer tube is provided with an expansion portion; the expansion portion is arranged in an annular shape, so that when the inner tube moves relative to the outer tube, the expansion portion can be stretched or compressed along the axial direction of the liquid outlet tube, so that the outer tube can adjust its own length.

5. The liquid outlet assembly of the earth covering tank according to claim 1, characterized in that: It also includes a detection tube; the detection tube is installed on the outer wall of the outer tube and is located at the outlet end of the liquid outlet pipe; the detection tube is connected to the sealed space, and the end of the detection pipeline away from the outer tube is connected to the detection component, so that the detection component can be connected to the sealed space through the detection tube.

6. The liquid outlet assembly of the earth covering tank according to claim 1, characterized in that: The free end of the inner connecting wall extends beyond the free end of the outer connecting wall in a direction away from the flange member so as to be used for welding the inner tube.

7. The liquid outlet assembly of the earth covering tank according to claim 1, characterized in that: The liquid outlet pipe also includes a push piece; the push piece is accommodated in the sealed space and pushes between the outer tube wall of the inner tube and the inner tube wall of the outer tube, so that the inner tube and the outer tube are spaced apart.

8. The liquid outlet assembly of the earth covering tank according to claim 1, characterized in that: It also includes a support component; one end of the support component is connected to the outside of the liquid outlet pipe, and the other end is connected to the soil covering tank to support the liquid outlet pipe.

9. The liquid outlet assembly of the earth covering tank according to claim 8, characterized in that: The support assembly comprises a support ring and a support connecting rod; the support ring is sleeved on the outer tube, and the support connecting rod is connected between the support ring and the soil covering tank to support the liquid outlet pipe.

10. A soil covering container, characterized in that: It comprises a soil covering tank and a soil covering tank liquid outlet assembly as described in any one of claims 1 to 9; the soil covering tank is used to load a medium; the soil covering tank liquid outlet assembly is connected to the liquid outlet of the soil covering tank for connecting to an external pipeline.

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