Liquid nitrogen storage tank

Abstract

The utility model provides a liquid nitrogen storage tank, and belongs to the technical field of gas application. The liquid nitrogen storage tank comprises a storage tank body, a plurality of supporting legs and two limiting supporting pieces. The two limiting supporting pieces are arranged on the side wall of the tank body at intervals, each limiting supporting piece comprises the fixed hinge base and the movable hinge base, the fixed hinge bases and the movable hinge bases are hinged to the two ends of the connecting rods respectively, and the movable hinge bases are detachably connected with the fixed bases. Therefore, the two limiting supporting pieces can be arranged in the axial direction of the storage tank body, limiting is formed on the two sides of the storage tank body, the problem that the liquid nitrogen storage tank rolls in the transferring process is solved, and in addition, the liquid nitrogen storage tank can be connected to a building wall and other structures after being overturned around the fixed hinge seats through the connecting rods; the limiting supporting piece and the storage tank body can be arranged at an angle in the axial direction, auxiliary supporting of the installed liquid nitrogen storage tank is achieved, the liquid nitrogen storage tank can adapt to two scenes by changing the state through the same structure, and the structure utilization rate is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas application technical field, concretely relates to a liquid nitrogen storage tank. BACKGROUND

[0002] Nitrogen is widely used and in great demand as industrial and living gas, such as protective gas in the welding process and filling gas for food bags. Since the preparation and use of nitrogen are usually carried out by different units, nitrogen needs to be transported to the use unit after preparation, and in order to make use more convenient, the use unit usually installs a storage tank to store nitrogen, and in order to store a large amount of nitrogen in a small volume, high pressure is usually used to liquefy nitrogen to realize liquid nitrogen storage, so the storage tank for storing liquid nitrogen comes into being.

[0003] At present, the existing liquid nitrogen storage tank on the market is usually a liquid nitrogen storage tank disclosed in patent CN207378495, which comprises a storage tank body and a fixed support, the fixed support is arranged at the bottom of the storage tank body, the storage tank body is provided with a liquid inlet and a liquid outlet, and is respectively connected with a liquid inlet pipe and a liquid outlet pipe. The liquid nitrogen storage tank needs to be transferred to the use unit and installed in the site of the use unit by a transport vehicle such as a car after being produced and manufactured by the manufacturer. Since the existing liquid nitrogen storage tank has only three evenly distributed supporting legs at the bottom of the fixed support, the three supporting legs contact the ground to support the storage tank body. However, since the traditional liquid nitrogen storage tank on the market is usually a large tank, the length of the storage tank body is relatively long, and after vertical installation, the height of the liquid nitrogen storage tank is relatively high, which has the risk of falling. In addition, when the liquid nitrogen storage tank is transported from the manufacturer to the use unit, the liquid nitrogen storage tank needs to be horizontally prevented on the transport vehicle such as a car, at this time, the liquid nitrogen storage tank in columnar structure has the risk of rolling, and the industry usually sets supporting legs at intervals on the side to limit, which can meet the demand of improving stability during transportation, but it is only used during transportation, and when the liquid nitrogen storage tank is vertically installed, it has no effect and the utilization rate is low. SUMMARY

[0004] In view of the above problems existing in the prior art, the present application provides a liquid nitrogen storage tank, which is provided with two groups of limiting supports on the side wall of the storage tank body, and each group of limiting supports can be arranged along the axial direction of the storage tank body and at an angle to the axial direction of the storage tank body. When the limiting supports are arranged along the axial direction of the storage tank body, limiting is formed on both sides of the storage tank body to prevent the horizontally placed liquid nitrogen storage tank from rolling during transportation. When the limiting supports are arranged at an angle to the axial direction of the storage tank body, they can be connected to the structure of the building wall to assist the support of the vertically installed storage tank body, improve the stability of the liquid nitrogen storage tank after vertical installation, improve the safety, realize the use of the same structure in different scenes, and improve the utilization rate of the structure.

[0005] The specific technical solutions are as follows:

[0006] The liquid nitrogen storage tank comprises a tank body and a plurality of supporting legs, the plurality of supporting legs are arranged on the bottom of the tank body and are uniformly distributed on the tank body, and the liquid nitrogen storage tank comprises the following features: two groups of limiting supporting members are arranged on the side wall of the tank body in a spaced manner.

[0007] Each group of limiting supporting members comprises a fixed hinge seat, a connecting rod, a movable hinge seat and a fixed seat, the fixed hinge seat and the fixed seat are arranged at two ends of the tank body in a spaced manner along the axial direction of the tank body, one end of the connecting rod is hingedly connected to the fixed hinge seat, the movable hinge seat is hingedly connected to the other end of the connecting rod, and the movable hinge seat is detachably connected to the fixed seat.

[0008] The liquid nitrogen storage tank comprises a tank body and a plurality of supporting legs, the plurality of supporting legs are arranged on the bottom of the tank body and are uniformly distributed on the tank body, and the liquid nitrogen storage tank comprises the following features: two groups of limiting supporting members are arranged on the side wall of the tank body in a spaced manner.

[0009] The outer wall of the outer pipe is provided with a plurality of first locking holes which are spaced apart along the axial direction of the outer pipe, the side wall of the inner pipe is provided with a plurality of second locking holes which are spaced apart along the axial direction of the inner pipe, one of the first locking holes is connected to one of the second locking holes by a bolt.

[0010] The liquid nitrogen storage tank comprises a tank body and a plurality of supporting legs, the plurality of supporting legs are arranged on the bottom of the tank body and are uniformly distributed on the tank body, and the liquid nitrogen storage tank comprises the following features: two groups of limiting supporting members are arranged on the side wall of the tank body in a spaced manner.

[0011] The liquid nitrogen storage tank comprises a tank body and a plurality of supporting legs, the plurality of supporting legs are arranged on the bottom of the tank body and are uniformly distributed on the tank body, and the liquid nitrogen storage tank comprises the following features: two groups of limiting supporting members are arranged on the side wall of the tank body in a spaced manner.

[0012] The liquid nitrogen storage tank comprises a tank body and a plurality of supporting legs, the plurality of supporting legs are arranged on the bottom of the tank body and are uniformly distributed on the tank body, and the liquid nitrogen storage tank comprises the following features: two groups of limiting supporting members are arranged on the side wall of the tank body in a spaced manner.

[0013] The liquid nitrogen storage tank comprises a tank body and a plurality of supporting legs, the plurality of supporting legs are arranged on the bottom of the tank body and are uniformly distributed on the tank body, and the liquid nitrogen storage tank comprises the following features: two groups of limiting supporting members are arranged on the side wall of the tank body in a spaced manner.

[0014] The liquid nitrogen storage tank, wherein the movable hinged seat further comprises a fixed plate, the fixed plate is a flat plate, the hinged plate of the movable hinged seat is fixed to the center of the fixed plate away from the end of the connecting rod, and a plurality of mounting holes are formed in the fixed plate, the fixed seat is arranged in an "n" shape, the two sides of the opening of the fixed seat are fixed to the outer wall of the storage tank body, the middle of the fixed seat is a matching plane corresponding to the fixed plate, and a plurality of connecting holes corresponding to the mounting holes are formed in the matching plane.

[0015] The liquid nitrogen storage tank, wherein a lifting ring is arranged on the top of the storage tank body, and the lifting ring is symmetrically arranged on the two sides of the storage tank body.

[0016] The technical scheme has the following beneficial effects:

[0017] The liquid nitrogen storage tank, wherein two limiting support members are arranged on the side wall of the storage tank body at intervals, each limiting support member can be arranged along the axial direction of the storage tank body or at an angle to the axial direction of the storage tank body, so that when the liquid nitrogen storage tank is transported from the manufacturer to the user, the limiting support member arranged along the axial direction of the storage tank body can form a limit on both sides of the storage tank body, preventing the liquid nitrogen storage tank from rolling during transportation. In addition, after the liquid nitrogen storage tank is vertically installed, the limiting support member arranged at an angle to the axial direction of the storage tank body can be connected to the structure such as a nearby building wall to achieve auxiliary support of the liquid nitrogen storage tank, thereby improving the stability of the liquid nitrogen storage tank after vertical installation. Moreover, the above functions can be realized by changing the state of the same structure, thereby improving the utilization rate of the structure. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The structure diagram of the liquid nitrogen storage tank of the embodiment of the utility model;

[0019] Figure 2 The state schematic view of the liquid nitrogen storage tank of the preferred embodiment of the utility model during transportation;

[0020] Figure 3 The state schematic view of the liquid nitrogen storage tank of the preferred embodiment of the utility model during vertical installation;

[0021] Figure 4 The Figure 2 The enlarged view of part A.

[0022] In the drawings: 1, storage tank body; 11, lifting ring; 2, supporting leg; 3, limiting support member; 31, fixed hinged seat; 32, connecting rod; 33, movable hinged seat; 34, fixed seat; 311, hinged plate; 321, outer pipe; 322, inner pipe; 323, groove; 331, fixed plate; 3211, first locking hole; 3221, second locking hole. DETAILED DESCRIPTION

[0023] In order to make the technical means, creation features, purposes and effects of the utility model easy to understand, the following embodiments are combined with the attached drawings Figure 1 to the attached Figure 4 The technical solutions of the utility model are described in detail, but the following content is not a limitation of the utility model.

[0024] Figure 1 The structure diagram of an embodiment of the liquid nitrogen storage tank of the utility model; Figure 2 The state schematic diagram of the liquid nitrogen storage tank of a preferred embodiment of the utility model during transfer; Figure 3 The state schematic diagram of the liquid nitrogen storage tank of a preferred embodiment of the utility model during vertical installation. As shown in Figure 1 , Figure 2 and Figure 3 The liquid nitrogen storage tank provided by the embodiment includes a storage tank body 1 and a plurality of supporting legs 2, the plurality of supporting legs 2 are arranged on the bottom of the storage tank body 1 and are evenly distributed on the storage tank body 1, and the use requirement of vertically installing the liquid nitrogen storage tank on the ground is met.

[0025] Specifically, two groups of limiting supporting members 3 are also arranged on the side wall of the storage tank body 1, the two groups of limiting supporting members 3 are arranged in the same direction, so that when the two groups of limiting supporting members 3 are arranged along the axial direction of the storage tank body 1, the side part is limited by the two sides of the two groups of limiting supporting members 3 when the storage tank body 1 is horizontally placed, the rolling of the storage tank body 1 is prevented, and the stability of the liquid nitrogen storage tank during transfer is improved. In addition, the two groups of limiting supporting members 3 are arranged at an angle with the axial direction of the storage tank body 1, so that the two groups of limiting supporting members 3 can be connected to the structure such as the wall of the building beside the liquid nitrogen storage tank, thereby realizing the auxiliary support of the liquid nitrogen storage tank, and also realizing the different use functions of the limiting supporting members 3 in different occasions, realizing the multi-scene application of the same structure, and improving the structure utilization rate.

[0026] Figure 4 The enlarged view of part A in Figure 2 The enlarged view of part A in Figures 1 to 4 ​As shown, each set of limiting support 3 further comprises a fixed hinge seat 31, a connecting rod 32, a movable hinge seat 33 and a fixed seat 34. During installation, the fixed hinge seat 31 and the fixed seat 34 are arranged at two ends of the tank body 1 along the axial direction of the tank body 1, so as to cover the length direction of the tank body 1 during subsequent limiting of the tank body 1, and the limiting effect is better. In addition, one end of the connecting rod 32 is hingedly connected to the fixed hinge seat 31, and the other end of the connecting rod 32 is hingedly connected to the movable hinge seat 33, so that the connecting rod 32 can be deflected on the fixed hinge seat 31, and the angle of the connecting rod 32 relative to the axial direction of the tank body 1 is changed, thereby providing conditions for subsequent connection of the connecting rod 32 to the building wall or other structure. In addition, the movable hinge seat 33 can also form an integral structure with the connecting rod 32 to follow the deflection of the connecting rod 32, that is, the movable hinge seat 33 can be installed on the building wall or other structure to realize the connection of the connecting rod 32 to the building wall or other structure, thereby improving the installation convenience. In addition, the movable hinge seat 33 and the fixed seat 34 are detachably connected, that is, when it is necessary to maintain the state that the limiting support 3 is arranged along the axial direction of the tank body 1, the movable hinge seat 33 can be directly installed on the fixed seat 34 to realize the connection, which also facilitates the installation.

[0027] More specifically, the connecting rod 32 is a telescopic rod, that is, the length of the connecting rod 32 is changed to adapt to different installation environments, thereby improving the structural flexibility. At this time, the connecting rod 32 further comprises an outer tube 321 and an inner tube 322. During installation, one end of the outer tube 321 is hingedly connected to the fixed hinge seat 31, one end of the inner tube 322 is inserted into the outer tube 321 from the end of the outer tube 321 away from the fixed hinge seat 31, and the other end of the inner tube 322 is hingedly connected to the movable hinge seat 33. The sliding of the inner tube 322 in the outer tube 321 is realized by pulling the inner tube 322, so as to realize the length adjustment of the connecting rod 32.

[0028] More specifically, a plurality of first locking holes 3211 are arranged on the outer wall of the outer tube 321 and spaced apart along the axial direction thereof, that is, the plurality of first locking holes 3211 are arranged in the length direction of the outer tube 321, so that different positions on the outer tube 321 are corresponded to the first locking holes 3211. Similarly, a plurality of second locking holes 3221 are arranged on the side wall of the inner tube 322 and spaced apart along the axial direction thereof, so that the second locking holes 3221 can also cover the length direction of the inner tube 322 to meet the subsequent telescopic requirement. In use, according to the required length, one of the plurality of first locking holes 3211 is selected to be connected with one of the plurality of second locking holes 3221 by a bolt, so as to fix the telescopic connecting rod 32 and prevent use failure. Preferably, the spacing between the adjacent two first locking holes 3211 is different from the spacing between the adjacent two second locking holes 3221, so that when the length of the connecting rod 32 is adjusted, the first locking hole 3211 and the second locking hole 3221 connected with each other can be arbitrarily adapted, so that the adjustable range is larger and the adaptability is better.

[0029] More specifically, the movable hinge seat 33 and the fixed seat 34 are connected by a bolt, that is, when it is necessary to ensure the stability of the liquid nitrogen storage tank during transportation and prevent the liquid nitrogen storage tank from rolling during the transportation process, the movable hinge seat 33 can be fixedly connected to the fixed seat 34, so that the two ends of the connecting rod 32 can be stably connected to the storage tank body 1 through the fixed hinge seat 31 and the movable hinge seat 33, respectively. In addition, it is also convenient to subsequently disassemble the movable hinge seat 33 from the fixed seat 34 and install it on the structure of the building wall, and the structure design is more reasonable.

[0030] More specifically, a cut groove 323 is also formed on the end face of each end of the connecting rod 32 along the axial direction thereof, so that each cut groove 323 penetrates through the two sides of the connecting rod 32, so that the side wall of the end of the connecting rod 32 also forms an avoiding opening, which provides a condition for subsequently increasing the yaw angle of the connecting rod 32. In addition, the fixed hinge seat 31 and the movable hinge seat 33 each include a hinge plate 311, and the hinge plates 311 of the fixed hinge seat 31 and the movable hinge seat 33 are respectively inserted into the cut grooves 323 at the two ends of the connecting rod 32 and are hingedly connected, so that the hinge plate 311 can yaw from one side of the connecting rod 32 to the other side in the cut groove 323, and the yawing allowable range is at least 180° or more, so that the yawing of the connecting rod 32 is more flexible and the adaptability is better.

[0031] More specifically, when the connecting rod 32 is arranged along the axial direction of the tank body 1, the end of the hinged plate 311 of the fixed hinge seat 31 and the movable hinge seat 33 inserted into one end of the cut groove 323 is located in the profile of the cut groove 323, so that the end of the hinged plate 311 does not exceed the cut groove 323, thereby preventing the connecting rod 32 from being stuck when it is deflected, and also ensuring that the part of the limiting support 3 contacting the external environment is always the connecting rod 32 rather than the fixed hinge seat 31 or the movable hinge seat 33 when the tank body 1 is placed horizontally, because the length of the connecting rod 32 is longer than that of the fixed hinge seat 31 or the movable hinge seat 33, thereby increasing the limiting contact area and improving the limiting effect and the structural design.

[0032] More specifically, the diameter of the end of the inner tube 322 connected to the movable hinge seat 33 is the same as that of the end of the outer tube 321 connected to the fixed hinge seat 31, that is, the diameters of the two ends of the connecting rod 32 are the same, which can ensure that the tank body 1 is contacted by the outer tube 321 and the end of the inner tube 322 during transportation, thereby preventing the tank body 1 from rolling and ensuring that both ends of the tank body 1 are limited and stable during transportation.

[0033] More specifically, the movable hinge seat 33 hinged to the end of the connecting rod 32 further comprises a fixed plate 331, which is a flat plate to better adapt to the surface installation requirements of subsequent building walls and other structures. In addition, the end of the hinged plate 311 of the movable hinge seat 33 away from the connecting rod 32 is fixed to the center of the fixed plate 331, so that the fixed plate 331 can be uniformly stressed. Meanwhile, a plurality of mounting holes are provided on the fixed plate 331, which can facilitate connection to the fixed seat 34 and subsequent installation on the building walls and other structures. In addition, the fixed seat 34 is arranged in an "n" shape, and the two sides of the opening of the fixed seat 34 are fixed to the outer wall of the tank body 1, thereby achieving installation of the fixed seat 34 on the tank body 1. Meanwhile, the middle of the fixed seat 34 is a matching plane corresponding to the fixed plate 331, and a plurality of connecting holes corresponding to the mounting holes are provided on the matching plane, that is, the fixed seat 34 can provide a matching plane matching the fixed plate 331 of the movable hinge seat 33, so that the movable hinge seat 33 can be stably installed on the fixed seat 34 through the mounting holes and the connecting holes. In addition, the fixed seat 34 arranged in an "n" shape can provide a large matching plane and reduce the structural weight and material usage.

[0034] More specifically, the top of the tank body 1 is provided with lifting rings 11, and the lifting rings 11 are symmetrically arranged on both sides of the tank body 1, so that the tank body 1 can be lifted by the lifting rings 11 during transportation and installation of the liquid nitrogen tank, thereby facilitating operation.

[0035] The liquid nitrogen storage tank provided by the embodiment comprises a storage tank body 1, a plurality of supporting legs 2 and two limiting supporting members 3; the two limiting supporting members 3 are arranged on the side wall of the tank body in an interval manner, each of the two limiting supporting members 3 comprises a fixed hinge seat 31 and a movable hinge seat 33, the fixed hinge seat 31 and the movable hinge seat 33 are respectively hingedly connected with two ends of a connecting rod 32, and the movable hinge seat 33 is detachably connected with a fixed seat 34, so that the two limiting supporting members 3 can be arranged along the axial direction of the storage tank body 1 to form a limit on both sides of the storage tank body 1, thereby preventing the liquid nitrogen storage tank from rolling during the transportation process; in addition, the connecting rod 32 can be turned around the fixed hinge seat 31 and connected to a structure such as a building wall, so that the limiting supporting member 3 can be arranged at an angle with the axial direction of the storage tank body 1, thereby achieving the auxiliary support of the installed liquid nitrogen storage tank, and the same structure can be changed to adapt to two scenes, and the utilization rate of the structure is higher.

[0036] The above is only the preferred embodiment of the utility model, and does not limit the implementation and protection scope of the utility model; for those skilled in the art, it should be realized that the solutions obtained by equivalent replacement and obvious changes according to the content of the utility model specification and drawings should be included in the protection scope of the utility model.

Claims

1. A liquid nitrogen storage tank comprising a tank body and a plurality of legs, the plurality of legs being provided at a bottom of the tank body and being uniformly distributed on the tank body, characterized in that, The application relates to a storage tank body, which comprises two groups of limiting support members arranged on the side wall of the storage tank body. Each group of the limiting support members comprises a fixed hinge seat, a connecting rod, a movable hinge seat and a fixed seat, the fixed hinge seat and the fixed seat are arranged at the two ends of the storage tank body along the axial direction of the storage tank body, one end of the connecting rod is hingedly connected to the fixed hinge seat, the other end of the connecting rod is hingedly connected to the movable hinge seat, and the movable hinge seat is detachably connected to the fixed seat.

2. The liquid nitrogen storage tank of claim 1, wherein, The connecting rod is a telescopic rod, which comprises an outer tube and an inner tube, one end of the outer tube is hingedly connected to the fixed hinge seat, and one end of the inner tube extends into the outer tube from the end of the outer tube away from the fixed hinge seat, and the other end of the inner tube is hingedly connected to the movable hinge seat.

3. The liquid nitrogen storage tank of claim 2, wherein, First locking holes are arranged on the outer wall of the outer tube along the axial direction of the outer tube, second locking holes are arranged on the side wall of the inner tube along the axial direction of the inner tube, and one of the first locking holes is connected to one of the second locking holes through a bolt.

4. The liquid nitrogen storage tank of claim 1, wherein, The movable hinge seat and the fixed seat are connected through a bolt.

5. The liquid nitrogen storage tank of claim 1, wherein, The end faces of the two ends of the connecting rod are provided with cut grooves along the axial direction of the connecting rod, each cut groove penetrates through the two sides of the connecting rod, the fixed hinge seat and the movable hinge seat each comprise a hinge plate, and the hinge plates of the fixed hinge seat and the movable hinge seat are respectively inserted into the cut grooves at the two ends of the connecting rod and are hingedly connected.

6. The liquid nitrogen storage tank of claim 5, wherein, When the connecting rod is arranged along the axial direction of the storage tank body, the end of the hinge plate inserted into the cut groove is located in the profile of the cut groove.

7. The liquid nitrogen storage tank of claim 2, wherein, The diameter of the end of the inner tube connected to the movable hinge seat is consistent with the diameter of the end of the outer tube connected to the fixed hinge seat.

8. The liquid nitrogen storage tank of claim 5, wherein, The movable hinge seat further comprises a fixed plate, the fixed plate is a flat plate, one end of the hinge plate of the movable hinge seat away from the connecting rod is fixed to the center of the fixed plate, a plurality of mounting holes are arranged on the fixed plate, the fixed seat is arranged in the shape of "n", the two sides of the opening of the fixed seat are fixed to the outer wall of the storage tank body, the middle of the fixed seat is a matching plane corresponding to the fixed plate, and a plurality of connecting holes corresponding to the mounting holes are arranged on the matching plane.

9. The liquid nitrogen storage tank of claim 1, wherein, A lifting ring is arranged on the top of the storage tank body, and the lifting ring is symmetrically arranged on the two sides of the storage tank body.

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