A mobile pressure vessel tank head protection device

Abstract

The present invention belongs to the field of head seals, and specifically relates to a mobile pressure vessel tank head seal protection device, comprising a wear-resistant elastic layer, a toughening layer, and a foaming layer, wherein the foaming layer is located between two toughening layers; each toughening layer is connected to a wear-resistant elastic layer on the side facing away from the foaming layer, and the outer wall of the wear-resistant elastic layer is in contact with the outer wall of the head seal; and further comprises a pair of permanent magnets located within the foaming layer, the two permanent magnets being placed facing each other and having the same poles facing each other. The present invention sets a head seal of the tank body, comprising a plurality of protective layers that cooperate with each other, and the strength, elasticity, and buffering and shock-absorbing properties of the various materials used in the various protective layers are closely combined, thereby improving the head seal of the tank body and other pressure vessels from resisting collision and impact during transportation, increasing the safety of the tank body and other pressure vessels during transportation, and reducing potential risks and losses during transportation.

Description

Technical Field

[0001] The invention belongs to the field of head sealing, and in particular relates to a mobile pressure vessel tank head sealing protection device. Background Art

[0002] With the development of social industry, the demand for various industrial raw materials is becoming more and more decentralized, which requires a variety of transportation methods to cooperate with each other. Among them, transport-type oil tankers and tank trucks are more typical and more important means of transportation. Moreover, most of the materials transported are flammable, explosive or hazardous raw materials. Once the tank body on the vehicle collides or is damaged and leaks, it will cause great harm or cause serious economic losses. In order to enhance the ability of the tank body to resist collision and impact during transportation, improve the safety of the transport vehicle during transportation, and reduce the potential losses and costs during transportation, this patented design is proposed. The protective device can be designed according to the different sizes and shapes of the tank head, thereby improving the transportation safety of these flammable, explosive and hazardous chemical industrial raw materials.

[0003] There are few existing patented designs that specifically protect the heads of pressure vessels, such as tanker truck bodies, in order to improve their resistance to collision and impact during transportation. Moreover, existing patents basically all focus on protecting pressure vessels in service on site, rather than pressure vessels of the type involved in the transportation of hazardous chemicals.

[0004] For example, patent publication number CN105697776A discloses a protective head with convex shell particles, comprising a head body, a closed upper end, an open lower end connected to a pressure vessel, an arc-shaped smooth outer end surface, and a plurality of convex shell particles evenly distributed on the outer end surface of the head body, each of which is equipped with a plurality of handle rings. Although the patented design of the protective head with convex shell particles can enhance the surface hardness and stability of the head body through the convex shell particles on the outer end surface of the head body, it is only suitable for pressure vessels that are stationary in service and still cannot provide the head and pressure vessel with collision and impact resistance during transportation.

[0005] For example, the patent with publication number CN105697772A discloses an explosion-proof protective head, which includes a head body and a protective ring body. The upper end face of the head body is an arc-shaped closed surface, and the outer end face of the lower end of the head body is provided with the protective ring body. The protective ring body is fixed to the outer side of the head body by a connecting bracket rod. The interior of the protective ring body is a cavity structure, and a compressed air protective cushion is provided inside the protective ring body. A pressure sensing head is provided on the inner wall of the protective ring body, and the pressure sensing head is connected to the compressed air protective cushion. Although the patented design of the explosion-proof protective head can timely sense the compressed air protective cushion and cover the pressure vessel when a leak occurs, it is only suitable for pressure vessels that are stationary in situ and cannot make the head and pressure vessel have the ability to resist collision and impact during the transportation of the head.

[0006] Therefore, the tank protection measures of oil tankers or tank trucks during transportation are relatively simple, lack effective tank protection, and have no unified standardized devices. They are easily damaged by collisions and impacts, and their safety cannot be guaranteed. Summary of the Invention

[0007] The purpose of the present invention is to solve the problem in the prior art that oil tankers or tank trucks have low resistance to collision and impact due to the lack of protection measures for the tank body during transportation, and propose a mobile pressure vessel tank head protection device.

[0008] In order to achieve the above technical objectives, the present invention adopts the following technical solutions:

[0009] A mobile pressure vessel tank head protection device includes a wear-resistant elastic layer, a toughening layer, and a foaming layer, wherein the foaming layer is located between two toughening layers; each toughening layer is connected to a wear-resistant elastic layer on a side facing away from the foaming layer, and the outer wall of the wear-resistant elastic layer is in contact with the outer wall of the head; and the device also includes a pair of permanent magnets located within the foaming layer, wherein the two permanent magnets are placed opposite each other and have the same poles on the opposite sides.

[0010] Furthermore, the back-to-back surfaces of the two permanent magnets are respectively bonded to the two toughening layers.

[0011] Furthermore, the two permanent magnets are located in the middle of the foaming layer.

[0012] Furthermore, the two toughening layers form a first closed cavity, and the foaming layer and the two permanent magnets are located in the first closed cavity.

[0013] Furthermore, the two wear-resistant elastic layers form a second closed cavity, and the two toughening layers are located in the second closed cavity.

[0014] Furthermore, the wear-resistant elastic layer is made of butyl rubber.

[0015] Furthermore, the toughening layer is nylon cloth and wire mesh alternately laminated together.

[0016] Furthermore, the diameter of the iron wires constituting the wire mesh is not less than 4 mm.

[0017] Furthermore, the material of the foam layer is foamed polypropylene, and the foamed polypropylene is bonded to the permanent magnet.

[0018] Furthermore, the foam particles formed by foaming the polypropylene are in a block or spherical shape.

[0019] Furthermore, a wear-resistant elastic layer away from the head is divided into a first wear-resistant elastic area and a second wear-resistant elastic area. The first wear-resistant elastic area is opposite to the head, and the second wear-resistant elastic area is sheathed outside the tank body.

[0020] Furthermore, the first wear-resistant elastic area is hemispherical in shape, and the second wear-resistant elastic area is straight-cylindrical in shape.

[0021] Compared with the prior art, the beneficial technical effects of the present invention are:

[0022] (1) The present invention is provided at the head of the tank body, and includes multiple protective layers that cooperate with each other. The strength, elasticity and buffering and shock-absorbing properties of the various materials used in the multiple protective layers are closely combined, thereby improving the ability of the head of the tank body and other pressure vessels to resist collision and impact during transportation, increasing the safety of the tank body and other pressure vessels during transportation, and reducing potential risks and losses during transportation;

[0023] (2) The present invention has a simple structure, cheap raw materials, and the overall device is lightweight and easy to place, which greatly improves the overall adaptability of the protective device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is an overall cross-sectional view of a mobile pressure vessel tank head protection device according to this embodiment.

[0025] In the figure, 1 is a wear-resistant elastic layer, 2 is a toughening layer, 3 is a permanent magnet, and 4 is a foaming layer. DETAILED DESCRIPTION

[0026] The present invention will be further described below with reference to specific embodiments, but the protection scope of the present invention is not limited thereto.

[0027] like Figure 1As shown, this embodiment is a mobile pressure vessel tank head protection device, comprising a wear-resistant elastic layer 1, a toughening layer 2, and a foaming layer 4. The foaming layer 4 is located between the two toughening layers 2. Each toughening layer 2 is connected to a wear-resistant elastic layer 1 on the side facing away from the foaming layer 4, and the outer wall of the wear-resistant elastic layer 1 is in contact with the outer wall of the head. This embodiment also includes a pair of permanent magnets 3 located in the foaming layer 4. The two permanent magnets 3 are placed opposite each other and the opposite sides have the same poles. The elasticity, wear resistance and strength uniformity of the wear-resistant elastic layer 1 are good, and it has a certain shock absorption capacity. The toughening layer 2 can improve the strength and toughness of this embodiment. When the two permanent magnets 3 are close, a repulsive force is generated. The foaming layer 4 and the permanent magnet 3 as a whole have a shock-absorbing and buffering effect, which absorbs energy when the storage tank collides, slows down the impact, and reduces the degree of damage. Therefore, this embodiment can improve the ability of the head portion of a pressure vessel such as a tank to resist collision and impact during transportation, increase the safety of the pressure vessel such as the tank during transportation, and reduce potential risks and losses during transportation.

[0028] The back-to-back surfaces of the two permanent magnets 3 are respectively fitted with the two toughening layers 2, making the relative position of the permanent magnets 3 more stable and less likely to move, ensuring that the damping force can better play its role in the event of a collision. The surface where the permanent magnet 3 contacts the toughening layer 2 should be processed to fit the shape of the toughening layer 2 to ensure that the two fit tightly. The two permanent magnets 3 are located in the middle of the foaming layer 4. When the tank body of a tank truck collides, the collision position often occurs in the middle area of the head. Therefore, placing the two permanent magnets 3 in the middle of the surface where the foaming layer 4 is located can ensure that the impact force is reduced to the maximum extent.

[0029] In order to form a stable structure, the two toughening layers 2 form a first closed cavity, and the foaming layer 4 and the two permanent magnets 3 are located in the first closed cavity. The two wear-resistant elastic layers 1 form a second closed cavity, and the two toughening layers 2 are located in the second closed cavity. The material of the wear-resistant elastic layer 1 is preferably butyl rubber, which has wear resistance and shock absorption effects, and has good elasticity. The toughening layer 2 is preferably nylon cloth and wire mesh laminated alternately. When the toughening layer 2 is specifically made, a layer of nylon cloth is first laid, and then the wire mesh is laid on the nylon cloth, followed by another layer of nylon cloth to complete a cycle, and the cycle is repeated many times until the required thickness is reached. Considering the yield strength, economy and impact resistance requirements of steel materials, after reasoning and calculation, the diameter of the iron wire that makes up the wire mesh should be no less than 4mm, preferably 4mm. The material of the foaming layer 4 is preferably foamed polypropylene, and the foamed polypropylene fits tightly with the permanent magnets 3. The foam particles formed by polypropylene foaming are square or spherical. Therefore, this embodiment has a simple structure, cheap raw materials, a light overall device, and is easy to place, and the overall adaptability of the protective device is greatly improved.

[0030] A wear-resistant elastic layer 1 away from the head is divided into a first wear-resistant elastic zone and a second wear-resistant elastic zone. The first wear-resistant elastic zone is away from the head and opposite to the head, and the second wear-resistant elastic zone is sleeved on the outside of the transport vehicle tank. The shape of the first wear-resistant elastic zone is preferably hemispherical, and the shape of the second wear-resistant elastic zone is preferably straight cylindrical. The shape of the foaming layer 4 of this embodiment is preferably spherical, the shape of the two toughening layers 2 is preferably spherical, and the shape of the wear-resistant elastic layer 1 that fits the head is preferably spherical. The two spherical toughening layers 2 enclose a closed space, which wraps the foaming layer 4. The two spherical wear-resistant elastic layers 1 enclose a closed space, which wraps the two toughening layers 2.

[0031] The working principle of this embodiment is as follows: The outermost wear-resistant elastic layer 1 of the protective device is made of butyl rubber, commonly used in tire manufacturing. It has good elasticity, wear resistance, and strength uniformity, and has certain shock absorption capabilities. The inner toughening layer 2 is mainly made of nylon cloth attached to both sides of a braided wire mesh. Its main function is to improve the strength and toughness of the protective device. The nylon cloth and wire mesh also have certain shock absorption capabilities due to their own structure. If the storage tank collides and explodes, the toughening layer 2 in the head of the protective device will play a major protective role. Therefore, the diameter and strength of the raw materials of the braided wire mesh must meet certain standards. The main function of the innermost foamed polypropylene and permanent magnet 3 is to absorb energy in the event of a collision, slowing the impact and reducing the degree of damage. The foamed polypropylene is light in weight, has good elasticity, is resistant to shock and pressure, has a high deformation recovery rate, and has good absorption properties. It is environmentally friendly and reusable, so it is used as a filling material. Two permanent magnets 3 are located at the center of the protective device, attached to the toughening layer 2. With their like poles facing each other, they repel each other, acting as a damper. Working in synergy with the expanded polypropylene, they provide a superior cushioning and shock absorption effect. This embodiment of the protective device has a hemispherical exterior and is divided into four main parts, three functional blocks, which work together to improve the safety of pressure vessels such as tanks during transportation by tanker trucks.

[0032] The embodiments of the present invention are described in detail above. For those skilled in the art, according to the ideas provided by the present invention, there may be changes in the specific implementation methods, and these changes should also be considered as the scope of protection of the present invention.

Claims

1. A mobile pressure vessel head protection device, characterized by: It includes a wear-resistant elastic layer, a toughening layer, and a foaming layer, wherein the foaming layer is located between the two toughening layers; each toughening layer is connected to a wear-resistant elastic layer on one side away from the foaming layer, and the outer wall of the wear-resistant elastic layer is in contact with the outer wall of the head; It also includes a pair of permanent magnets located in the foam layer, the two permanent magnets are placed opposite each other and have the same poles on the opposite sides; The two toughening layers form a first closed cavity, and the foaming layer and the two permanent magnets are located in the first closed cavity; The two wear-resistant elastic layers form a second closed cavity, and the two toughening layers are located in the second closed cavity; The wear-resistant elastic layer away from the head is divided into a first wear-resistant elastic area and a second wear-resistant elastic area. The first wear-resistant elastic area is opposite to the head, and the second wear-resistant elastic area is sheathed outside the tank body.

2. The mobile pressure vessel head protection device according to claim 1 is characterized in that: The back-to-back surfaces of the two permanent magnets are respectively bonded to the two toughening layers.

3. The mobile pressure vessel head protection device according to claim 2, characterized in that: The two permanent magnets are located in the middle of the foam layer.

4. The mobile pressure vessel head protection device according to claim 1, characterized in that: The material of the wear-resistant elastic layer is butyl rubber.

5. The mobile pressure vessel head protection device according to claim 1 is characterized in that: The toughening layer is nylon cloth and wire mesh laminated alternately.

6. The mobile pressure vessel head protection device according to claim 1, characterized in that: The material of the foaming layer is foamed polypropylene, and the foamed polypropylene is bonded to the permanent magnet.

7. The mobile pressure vessel head protection device according to claim 1, characterized in that: The first wear-resistant elastic area is in a hemispherical shape, and the second wear-resistant elastic area is in a straight cylindrical shape.

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