Wave-proof device of low-temperature liquid heat insulation tank car

Abstract

The utility model relates to the technical field of low-temperature liquid storage and transportation, in particular to a swash device of a low-temperature liquid heat insulation tank car, which comprises a plurality of conical swash plates arranged in an inner container of the low-temperature liquid heat insulation tank car at intervals. The conical swash plate is perpendicularly arranged relative to the central axis of an inner container of the low-temperature liquid heat insulation tank car and connected with the tank wall of the inner container, a pair of crescent-shaped swash notches are formed in the edge positions of the upper portion and the lower portion of the outer circle of the conical swash plate respectively, and a central through hole is formed in the center of the conical swash plate. The conical swash plate is provided with a center through hole, a circle of turnup is further arranged at the center through hole of the conical swash plate, the turnup direction of the circle of turnup is opposite to the large-end taper hole of the conical swash plate, and a plurality of swash overflowing holes are further distributed in the conical swash plate in a scattered mode. According to the utility model, the liquid surge impact prevention reliability and the impact prevention effect of the low-temperature liquid heat insulation tank truck are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to low temperature liquid storage and transportation technical field, concretely relates to a low temperature liquid heat insulation tank car's wave breaker. BACKGROUND

[0002] Low temperature liquid heat insulation tank car is a kind of low temperature liquid transport container for storing low temperature liquid and can be transported on highway, it usually adopts semitrailer structure.The overall structure of tank car includes tank body, running gear arranged in the rear part of tank body, traction pin assembly arranged in the front part of tank body for connecting car head etc..By using the traction pin assembly on tank body, low temperature liquid heat insulation tank car can be connected with semitrailer head, to realize the transportation of low temperature liquid heat insulation tank car.

[0003] The tank body of low temperature liquid heat insulation tank car is double-layer tank body, inner tank (inner container) is used to store liquid hydrogen, liquid oxygen, liquid nitrogen, liquefied gas and other low temperature liquids (temperature is usually below-100 DEG C), outer tank (outer container) is arranged at the periphery of inner tank, and the sealed space between outer tank and inner tank is pumped to vacuum, to form heat insulation space;In addition, a layer of heat insulation material is also arranged on inner tank.

[0004] During the transportation of low temperature liquid heat insulation tank car, due to external factors (such as sudden stop, sudden start, accidental collision etc.), the liquid in tank will produce violent shaking due to inertia, to generate surge impact to tank body, and the huge liquid surge impact force can cause potential damage to tank body, to cause greater safety hazard.From the actual use condition analysis, the liquid surge impact force received by the end head of inner container of low temperature liquid heat insulation tank car is larger.Long-term surge impact can easily cause liquid leakage in tank body or even explosion etc.Risk.For this reason, it is usually necessary to set wave breaker in tank body, to reduce the impact of liquid shaking to tank body.However, the existing wave breaker also has the drawbacks of being easily damaged due to insufficient impact resistance, and its wave prevention effect needs to be further improved. UTILITY MODEL CONTENTS

[0005] In order to solve the above problems, the utility model provides a kind of low temperature liquid heat insulation tank car's wave breaker, to improve the reliability and the effect of low temperature liquid heat insulation tank car to prevent liquid surge impact and anti-impact.Specific technical solutions are as follows:

[0006] A wave-damping device for a cryogenic liquid insulated tank truck includes a plurality of conical wave-damping plates spaced apart within the inner container of the cryogenic liquid insulated tank truck. The conical wave-damping plates are arranged perpendicularly to the central axis of the inner container and connected to the tank wall of the inner container. A pair of crescent-shaped wave-damping notches are respectively provided at the upper and lower edges of the outer circle of the conical wave-damping plates. A central through hole is provided at the center of the conical wave-damping plates, and a flange is also provided at the central through hole of the conical wave-damping plates. The flange direction is opposite to the large end conical hole of the conical wave-damping plates. A plurality of wave-damping flow holes are also distributed on the conical wave-damping plates.

[0007] Preferably, the outer circumference of the conical baffle is further provided with a connecting flange perpendicular to the central axis of the inner container, and the conical baffle is connected to the tank wall of the inner container through the connecting flange.

[0008] Preferably, the conical baffle is a conical baffle formed by integral stamping of steel plate, the flange is a straight cylindrical flange formed by die stamping, and a transition arc is provided between the straight cylindrical flange and the main body of the conical baffle.

[0009] Preferably, the cone angle of the conical wave deflector is 155-160°.

[0010] Preferably, the crescent-shaped wave-damping notch is a semi-circular wave-damping notch, and the radius of the semi-circular wave-damping notch is 1 / 3 to 2 / 7 of the outer radius of the conical wave-damping plate.

[0011] In this invention, the number of conical baffles is three, and the three conical baffles are evenly spaced along the central axis of the inner container of the cryogenic liquid insulated tanker.

[0012] To facilitate tank manufacturing and subsequent inspection and maintenance, the diameter of the central through hole of the conical baffle should be greater than 600 mm (preferably 900 mm) to facilitate the passage of manufacturing or maintenance personnel.

[0013] As a further improvement of this utility model, a pair of wave-absorbing components are also arranged on the inner walls of both ends near the inner container head of the inner container of the cryogenic liquid insulated tank truck. The wave-absorbing components include a stainless steel liner plate disposed on the inner wall of the inner container head of the inner container, and a number of wave-absorbing modules densely installed on the stainless steel liner plate. Each wave-absorbing module includes a stainless steel wave-absorbing seat ring, a stainless steel wave-absorbing mesh fixed on the front side of the stainless steel wave-absorbing seat ring, and a stainless steel wire ball filled inside the wave-absorbing mesh.

[0014] Preferably, the stainless steel liner is provided with a seat ring positioning hole, and the back of the stainless steel absorbing seat ring is provided with an outer stop. The stainless steel absorbing seat ring is positioned on the seat ring positioning hole of the stainless steel liner through the outer stop and is fixed by spot welding.

[0015] In this invention, the shape of the stainless steel liner is adapted to the shape of the inner wall of the inner container cap.

[0016] Preferably, the stainless steel liner is fixed to the inner wall of the inner container head by spot welding.

[0017] Considering that there are pipes on the inner wall of the container, the stainless steel liner is provided with pipe avoidance holes, so that the wave absorbing module avoids the pipes located at both ends inside the inner container when it is arranged on the stainless steel liner.

[0018] Preferably, the wave-absorbing modules can be installed on one or both sides of the conical baffle in a circumferential array arrangement to reduce the impact of surging liquid on the conical baffle itself and effectively reduce the peak impact of surging liquid on the tank.

[0019] The beneficial effects of this utility model are:

[0020] First, the present invention provides a wave-damping device for a cryogenic liquid insulated tank truck. The wave-damping plate is a conical wave-damping plate formed by integral stamping of steel plate, and a flange is provided in the inner hole of the conical wave-damping plate, which can effectively improve the impact resistance of the wave-damping plate and make it less prone to damage after long-term use, thereby improving the reliability of the cryogenic liquid insulated tank truck in preventing liquid surge impact.

[0021] Secondly, the anti-wave device for a cryogenic liquid insulated tank truck of this utility model has anti-wave flow holes provided on the conical anti-wave plate, which can further improve the effect of the cryogenic liquid insulated tank truck in preventing liquid surge impact.

[0022] Third, the surge shielding device for a cryogenic liquid insulated tank truck of this utility model has wave-absorbing components installed on the inner walls of the inner container end caps at both ends. These components can effectively absorb a portion of the surge energy, thereby reducing the peak value of the surge. Similarly, wave-absorbing components installed on a conical surge shield can also reduce the peak value of the surge and provide good protection for the conical surge shield itself. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the anti-wave device for a cryogenic liquid insulated tank truck according to this utility model.

[0024] Figure 2 yes Figure 1 A schematic diagram of the conical wave deflector in the diagram;

[0025] Figure 3 yes Figure 2 The right view;

[0026] Figure 4 Is Figure 2 A schematic diagram of a structure in which wave-absorbing components are installed on the inner walls of the inner container caps at both ends of the inner container;

[0027] Figure 5 yes Figure 4 A magnified view of the absorbing component in the image.

[0028] In the diagram: 101, inner container; 101-1, inner container end cap;

[0029] In the diagram: 201, conical wave deflector; 202, crescent-shaped wave deflector notch; 203, central through hole; 204, flange; 205, wave deflector flow hole; 206, connecting flange; 207, transition arc; 208, wave absorbing assembly; 209, stainless steel liner; 210, wave absorbing module; 211, stainless steel wave absorbing seat ring; 212, stainless steel wave absorbing mesh cover; 213, stainless steel wire ball; 214, seat ring positioning hole; 215, outer stop. Detailed Implementation

[0030] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0031] like Figures 1 to 5 The illustration shows an embodiment of a wave-damping device for a cryogenic liquid insulated tank truck according to the present invention. It includes a plurality of conical wave-damping plates 201 spaced apart within the inner container 101 of the cryogenic liquid insulated tank truck. The conical wave-damping plates 201 are arranged perpendicularly to the central axis of the inner container 101 and connected to the tank wall of the inner container 101. A pair of crescent-shaped wave-damping notches 202 are respectively provided at the upper and lower edges of the outer circumference of the conical wave-damping plates 201. A central through-hole 203 is provided at the center of the conical wave-damping plates 201, and a flange 204 is also provided at the central through-hole 203 of the conical wave-damping plates 201. The flange direction of the flange 204 is opposite to the large-end conical hole of the conical wave-damping plates 201. A plurality of wave-damping flow holes 205 are also distributed on the conical wave-damping plates 201.

[0032] Preferably, the outer circle of the conical baffle plate 201 is further provided with a connecting flange 206 perpendicular to the central axis of the inner container 101, and the conical baffle plate 201 is connected to the tank wall of the inner container 101 through the connecting flange 206.

[0033] Preferably, the conical baffle plate 201 is a conical baffle plate 201 formed by integral stamping of steel plate, the flange 204 is a straight cylindrical flange 204 formed by die stamping, and a transition arc 207 is provided between the straight cylindrical flange 204 and the main body of the conical baffle plate 201.

[0034] Preferably, the cone angle of the conical wave deflector 201 is 155-160°.

[0035] Preferably, the crescent-shaped wave-damping notch 202 is a semi-circular wave-damping notch, and the radius of the semi-circular wave-damping notch 202 is 1 / 3 to 2 / 7 of the outer radius of the conical wave-damping plate 201.

[0036] In this embodiment, there are three conical baffles 201, and the three conical baffles 201 are evenly spaced along the central axis of the inner container 101 of the cryogenic liquid insulated tank truck.

[0037] To facilitate the manufacturing of the tank and subsequent inspection and maintenance, the diameter of the central through hole 203 of the conical baffle 201 should be greater than 600 mm (preferably 900 mm) to facilitate the passage of manufacturing or maintenance personnel.

[0038] As a further improvement to this embodiment, a pair of wave-absorbing components 208 are also arranged on the inner walls of both ends of the inner container 101 near the inner container head 101-1. The wave-absorbing components 208 include a stainless steel liner 209 disposed on the inner wall of the inner container head 101-1 of the inner container 101, and a number of wave-absorbing modules 210 densely installed on the stainless steel liner 209. Each wave-absorbing module 210 includes a stainless steel wave-absorbing seat ring 211, a stainless steel wave-absorbing mesh cover 212 fixed on the front side of the stainless steel wave-absorbing seat ring 211, and a stainless steel wire ball 213 filled inside the wave-absorbing mesh cover 212.

[0039] Preferably, the stainless steel liner 209 is provided with a seat ring positioning hole 214, and the back of the stainless steel absorbing seat ring 211 is provided with an outer stop 215. The stainless steel absorbing seat ring 211 is positioned on the seat ring positioning hole 214 of the stainless steel liner 209 through the outer stop 215 and is fixed by spot welding.

[0040] In this embodiment, the shape of the stainless steel liner 209 is adapted to the inner wall shape of the inner container cap 101-1.

[0041] Preferably, the stainless steel liner 209 is fixed to the inner wall of the inner container head 101-1 by spot welding.

[0042] Considering that there are pipes on the inner wall of the inner container 101, the stainless steel liner 209 is provided with pipe avoidance holes. When the wave absorbing module 210 is arranged on the stainless steel liner 209, it avoids the pipes located at both ends inside the inner container 101.

[0043] Preferably, the wave-absorbing module 210 can be installed on one or both sides of the conical baffle 201 in a circumferential array arrangement to reduce the impact of the surging liquid on the conical baffle 201 itself and effectively reduce the peak impact of the surging liquid in the tank on the tank body.

[0044] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A wave-damping device for a cryogenic liquid insulated tank truck, characterized in that, The system includes a number of conical baffles spaced apart within the inner container of a cryogenic liquid insulated tanker. Each conical baffle is arranged perpendicular to the central axis of the inner container and connected to the tank wall. A pair of crescent-shaped baffle notches are provided at the upper and lower edges of the outer circumference of each conical baffle. A central through-hole is provided at the center of each conical baffle, and a flange is also provided at the central through-hole. The flange's direction is opposite to the large-end conical hole of the conical baffle. A number of baffle flow holes are also distributed on the conical baffle.

2. The anti-wave device for a cryogenic liquid insulated tank truck according to claim 1, characterized in that, The conical baffle plate is also provided with a connecting flange on its outer circle, which is perpendicular to the central axis of the inner container. The conical baffle plate is connected to the tank wall of the inner container through the connecting flange.

3. The anti-wave device for a cryogenic liquid insulated tank truck according to claim 1, characterized in that, The conical baffle is formed by integral stamping of steel plate, and the flange is formed by die stamping of straight cylindrical flange, with a transition arc provided between the straight cylindrical flange and the main body of the conical baffle.

4. The anti-wave device for a cryogenic liquid insulated tank truck according to claim 1, characterized in that, The cone angle of the conical wave deflector is 155-160°; the crescent-shaped wave deflector notch is a semi-circular wave deflector notch, and the radius of the semi-circular wave deflector notch is 1 / 3 to 2 / 7 of the outer radius of the conical wave deflector.

5. The anti-wave device for a cryogenic liquid insulated tank truck according to claim 1, characterized in that, The number of conical baffles is three, and the three conical baffles are evenly spaced along the central axis of the inner container of the cryogenic liquid insulated tanker.

6. The anti-wave device for a cryogenic liquid insulated tank truck according to claim 1, characterized in that, Inside the inner container of the cryogenic liquid insulated tank truck, a pair of wave-absorbing components are also arranged on the inner walls at both ends near the inner container head. The wave-absorbing components include a stainless steel liner plate set on the inner wall of the inner container head, and a number of wave-absorbing modules densely installed on the stainless steel liner plate. Each wave-absorbing module includes a stainless steel wave-absorbing seat ring, a stainless steel wave-absorbing mesh fixed on the front of the stainless steel wave-absorbing seat ring, and a stainless steel wire ball filled inside the wave-absorbing mesh.

7. A wave-damping device for a cryogenic liquid insulated tank truck according to claim 6, characterized in that, The stainless steel liner is provided with a seat ring positioning hole, and the back of the stainless steel microwave absorbing seat ring is provided with an outer stop. The stainless steel microwave absorbing seat ring is positioned on the seat ring positioning hole of the stainless steel liner through the outer stop and is fixed by spot welding.

8. A wave-damping device for a cryogenic liquid insulated tank truck according to claim 6, characterized in that, The shape of the stainless steel liner is adapted to the shape of the inner wall of the inner container head.

9. A wave-damping device for a cryogenic liquid insulated tank truck according to claim 8, characterized in that, The stainless steel liner is fixed to the inner wall of the inner container head by spot welding.

10. A wave-damping device for a cryogenic liquid insulated tank truck according to claim 6, characterized in that, When the microwave absorbing module is arranged on the stainless steel liner, it avoids the pipes located at both ends inside the inner container.

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