Pv valve support and operation platform

Abstract

The utility model provides a PV valve support and operation platform in the field of ship, which comprises a support frame, a stepping platform and a handrail. The support frame is located on the upper deck and surrounds the air permeable pipe. The top of the air permeable pipe is provided with a PV valve. The stepping platform is arranged on the side of the air permeable pipe and is a fixed platform for the crew to climb the air permeable pipe and stand on both feet. The handrail is arranged on the side of the air permeable pipe and faces the stepping platform, which is used when the crew goes up and down the stepping platform. The embodiment of the application adopts the technical means that the support frame surrounds the air permeable pipe and the stepping platform and the handrail are arranged on the side of the air permeable pipe. The stepping platform is safe and reliable, effectively solves the technical problem of operating the PV valve in the prior art, and the crew can quickly climb the stepping platform to the PV valve operating position with the help of the handrail and stand on both feet to operate the PV valve, thereby realizing the technical effect of high personal safety and good operation stability. It is suitable for use as a PV valve support and operation platform.

Description

Technical Field

[0001] This utility model relates to large crude oil tankers in the field of shipbuilding, and in particular to PV valve support and operating platform. Background Technology

[0002] Large crude oil tankers require venting systems in their cargo tanks. Continuously releasing flammable gases evaporating from the tanks is not only dangerous but also economically damaging due to cargo loss. Therefore, the vents should ideally be closed while the ship is at sea. However, this can lead to damage to the cargo tanks due to pressure and temperature variations between the inside and outside. To address this, PV valves (pressure / vacuum valves) are essential and installed on the vents to control the tank pressure within a specific range. Each cargo tank's vent and PV valve are independently installed on the upper deck at a considerable height, requiring sufficiently strong piping support and convenient access for both routine and emergency operations, facilitating crew movement.

[0003] This utility model is installed on the vent pipe of the cargo oil tank for vent pipe support and PV valve operation, replacing the currently commonly used solutions such as pipeline reinforcement elbow plates and simple steps. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies and address the issue of crew members being unable to quickly reach and operate PV valves, this application provides a PV valve support and operating platform. This PV valve support and operating platform solves the technical problem of operating the PV valve by having a support frame encircling the vent pipe and a step platform and handrails installed on the side of the vent pipe.

[0005] The solution adopted by the embodiments of this application to solve the technical problem is: The PV valve support and operating platform includes a support frame, a step platform, and handrails; The support frame sits on the upper deck, surrounding the support vent pipe, and a PV valve is installed on the top of the vent pipe; the step platform is located on the side of the vent pipe, which is a fixed platform for crew members to climb the vent pipe and stand with both feet; the handrail is located on the side of the vent pipe and faces the step platform, for crew members to use when going up and down the step platform.

[0006] To further address the technical problems to be solved in the embodiments of this application, the support frame provided in the embodiments of this application includes a support tube, which is made of seamless steel pipe bent into an arc shape. The support tube has a short pipe section and a long pipe section. Three support tubes are evenly distributed around the vent pipe at 120°. The end of the short pipe section is connected to the vent pipe, and the end of the long pipe section is connected to the upper deck. A support pad is provided between the end of the long pipe section and the upper deck.

[0007] Furthermore, a sleeve is fitted onto the vent pipe, and the short section of the support pipe is connected to the vent pipe through the sleeve.

[0008] Furthermore, the step platform includes an upper support, a corrugated steel plate, horizontal bracing angle steel, square steel, diagonal bracing angle steel, a lower support, and a connecting pad. The step platform is positioned between two support pipes. At the end of the step platform adjacent to the vent pipe, an upper support is installed at the top, and a lower support is installed at the bottom. Both the upper and lower supports are strip-shaped plates, with arcs at their adjacent ends to the vent pipe, the arcs matching the outer diameter of the vent pipe. A horizontal bracing angle steel is installed at the end of the step platform away from the vent pipe. The inner side of the horizontal bracing angle steel is connected to the lower support via diagonal bracing angle steel, forming a diagonal support. A connecting pad is installed at the bottom of the diagonal bracing angle steel, which is then fixed to the lower support with fasteners. A square steel is installed on the outer side of the horizontal bracing angle steel, bent into a U-shaped step and welded to the horizontal bracing angle steel, forming the first-level step platform for crew members to climb to the PV valve working position. The upper support is at the same height and flush with the horizontal bracing angle steel. A corrugated steel plate is laid between the upper support and the horizontal bracing angle steel, one end of which is connected to the upper support with fasteners, and the other end overlaps and is fixed to the horizontal bracing angle steel, forming the second-level step platform for crew members to stand with both feet while working.

[0009] Furthermore, the diagonal bracing angle steel consists of two pieces arranged symmetrically.

[0010] Furthermore, fasteners include bolts, washers, spring washers, and nuts.

[0011] Furthermore, the decorative steel plate is a plate-like structure with folded edges on both sides. One folded edge forms the eaves of the first step platform, while the other folded edge has a groove for mounting a bracket, so that the flat surface of the decorative steel plate forms a fixed step platform.

[0012] Positive effects: The technical solutions provided in this application embodiment have at least the following technical effects or advantages: 1. Because the embodiments of this application adopt the technical means of supporting the vent pipe and setting the step platform and handrail on the side of the vent pipe, the step platform is safe and reliable, effectively solving the technical problem of operating the PV valve in the prior art. With the help of the handrail, the crew can quickly climb the step platform to reach the PV valve operation position and operate the PV valve while standing on both feet, thereby achieving the technical effect of high personal safety and good operation stability.

[0013] 2. Because the embodiments of this application adopt the technical means of forming a rooting component on the ventilator through the upper and lower supports of the stepping platform, the technical problem of operating the PV valve in the prior art is effectively solved, and the commonly used reinforcing liner connection is replaced, forming an effective support, thereby achieving the technical effect of ventilator damage.

[0014] 3. Because the embodiments of this application adopt the technical means of forming a first-level step platform by bending square steel into U-shaped steps and connecting the corrugated steel plate to the upper support to form a second-level step platform, the crew can not only climb to the working position of the PV valve, but also stand with both feet to operate the PV valve, which effectively solves the technical problem of operating the PV valve in the prior art, and thus achieves a technical effect that is significantly superior to portable platforms or single-step platforms.

[0015] 4. Because the embodiments of this application adopt the technical means of setting a steel plate on the step platform, the technical problem of operating PV valve in the prior art is effectively solved. When the crew stands with both feet, it is not easy to slip and is not afraid of strong winds and waves, thus achieving the technical effect of maintaining the stability of operating PV valve.

[0016] Suitable for use as a support and operating platform for PV valves. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is the front view of this embodiment; Figure 2 This is a top view of this embodiment; Figure 3 This is a side view of this embodiment; Figure 4 This is the main view of the stepping platform; Figure 5 This is a top view of the stepping platform; Figure 6 This is a side view of the step platform.

[0019] In the diagram, 1. Support; 2. Step platform; 3. Handrail; 4. Support pad; 5. Upper bracket; 6. Steel plate; 7. Horizontal bracing angle steel; 8. Square steel; 9. Diagonal bracing angle steel; 10. Lower bracket; 11. Bolt; 12. Washer; 13. Spring washer; 14. Nut; 15. Connecting pad; 16. Vent pipe; 17. PV valve; 18. Upper deck. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] The cargo oil tank vent pipe is independently installed on the upper deck at a height of over 2500mm. Without effective support, the vent pipe is at risk of rupture, leading to cargo oil tank leakage. The PV valve is installed on the vent pipe, making it difficult for crew members to access. This application's embodiment solves the problem of inaccessible PV valves in existing technologies by providing a PV valve support and operating platform. The PV valve support and operating platform uses a support frame 1 to support the vent pipe 16, and crew members stand on the step platform 2 to operate the PV valve 17, enabling rapid access and operation of the PV valve 17.

[0022] According to the instruction manual Figures 1-6 As shown, the PV valve support and operating platform includes a support frame 1, a step platform 2, and a handrail 3; Support frame 1 sits on the upper deck 18 and surrounds the vent pipe 16. A PV valve 17 is installed on the top of the vent pipe 16. Support frame 1 provides strong support for vent pipe 16, which is not afraid of strong winds and waves and is more robust, safe and reliable than pipe reinforcement elbow plate. The stepping platform 2 is located on the side of the vent pipe 16 and is a fixed platform for crew members to climb the vent pipe 16 and stand on both feet to operate the PV valve 17. The handrail 3 is located on the side of the ventilation pipe 16 and faces the step platform 2. It is used by crew members to go up and down the step platform and facilitates climbing.

[0023] The technical solutions described in the embodiments of this application have at least the following technical effects or advantages: Because the PV valve support and operation platform uses a support frame 1 to surround the vent pipe 16, and a step platform 2 and a handrail 3 are set on the side of the vent pipe 16; therefore, the step platform 2 is safe and reliable. With the help of the handrail 3, the crew can quickly climb the step platform 2 to reach the operation position of the PV valve 17 and operate the PV valve 17 while standing on both feet, which ensures high personal safety and good operational stability.

[0024] To ensure the stability of the structure in this embodiment, the support frame 1 includes a support tube, which is made of seamless steel pipe bent into an arc shape. The support tube has a short section and a long section. Three support tubes are evenly distributed at 120° around the vent pipe 16. The end of the short section is connected to the vent pipe 16, and the end of the long section is connected to the upper deck 18. A support pad 4 is provided between the end of the long section and the upper deck 18, which can not only increase the contact area, but also improve the connection strength.

[0025] In this embodiment, the support pipe is made of seamless steel pipe φ89X7.5 GB / T5312, the support pad 4 is made of t20Q235A plate, and the handrail 3 is made of φ16 steel bar bent into shape.

[0026] Preferably, a sleeve is fitted onto the vent pipe 16, and the short section end of the support pipe is connected to the vent pipe 16 through the sleeve.

[0027] In this embodiment, the short end of the support pipe is welded to the vent pipe 16, and the long end is welded to the upper deck 18 via the support pad 4.

[0028] To further ensure the stability of the structure in this embodiment, the step platform 2 includes an upper support 5, a corrugated steel plate 6, a horizontal bracing angle steel 7, a square steel 8, a diagonal bracing angle steel 9, a lower support 10, and a connecting pad 15. The stepping platform 2 is set between the two support pipes. At the end of the stepping platform 2 adjacent to the air pipe 16, an upper support 5 is set at the top and a lower support 10 is set at the bottom. The upper support 5 and the lower support 10 are strip plates, and the ends adjacent to the air pipe 16 are provided with arcs. The arcs match the outer diameter of the air pipe 16. Then the upper support 5 and the lower support 10 are welded to the air pipe 16, so that the stepping platform 2 forms a rooting component. The step platform 2, located away from the end of the vent pipe 16, is provided with a horizontal bracing angle steel 7. The inner side of the horizontal bracing angle steel 7 is connected to the lower support 10 through diagonal bracing angle steel 9 to form a diagonal support. The diagonal bracing angle steel 9 are symmetrically arranged. In this embodiment, the contact part between the horizontal bracing angle steel 7 and the diagonal bracing angle steel 9 is welded together. A connecting pad 15 is provided at the bottom of the diagonal bracing angle steel 9, and the diagonal bracing angle steel 9 is fixed to the lower support 10 by fasteners. A square steel 8 is provided on the outside of the cross bracing angle steel 7. The square steel 8 is bent into a U-shaped step and welded to the cross bracing angle steel 7 to form the first step platform, which is used by the crew to climb to the working position of the PV valve 17. The upper support 5 is at the same height and flush with the cross bracing angle steel 7. A corrugated steel plate 6 is laid between the upper support 5 and the cross bracing angle steel 7. One end of the corrugated steel plate 6 is connected to the upper support 5 by fasteners, and the other end overlaps and is fixed to the cross bracing angle steel 7 to form a second step platform for crew members to stand on with both feet to work.

[0029] In this embodiment, the upper support 5 and the lower support 10 are made of t20 Q235A, the corrugated steel plate 6 is made of t5 GB / T3277, the cross bracing angle steel 7 is made of L75X8 GB / T706, the diagonal bracing angle steel 9 is made of L50X6 GB / T706, and the square steel 8 is bent and formed of F20 GB / T706.

[0030] The technical solutions described in the embodiments of this application have at least the following technical effects or advantages: Since the stepping platform 2 forms a rooting component on the air vent 16 through the upper support 5 and the lower support 10, it replaces the commonly used reinforcing liner connection, forming an effective support and avoiding the risk of damage to the air vent 16.

[0031] Because the step platform 2 is formed by bending square steel 8 into U-shaped steps to form the first step platform; and the corrugated steel plate 6 is connected to the upper support 5 to form the second step platform, the crew can not only climb to the working position of PV valve 17, but also stand with both feet to operate PV valve 17. This has obvious advantages compared with the portable platform or single-step platform used before.

[0032] As a standard technical choice, the fasteners include bolt 11, washer 12, spring washer 13, and nut 14.

[0033] To optimize the structure of this embodiment, the decorative steel plate 6 is a plate-shaped structure with folded edges on both sides. One folded edge forms the eaves of the first step platform, and the other folded edge has a slot to assemble the bracket 5, so that the plane of the decorative steel plate 6 forms a fixed step platform.

[0034] The technical solutions described in the embodiments of this application have at least the following technical effects or advantages: Because the step platform 2 is equipped with a steel plate 6, the crew members are less likely to slip when standing with their feet on it, and are not afraid of strong winds and rough waves, thus maintaining the stability of operating the PV valve 17.

[0035] The working process of this embodiment: First, three support pipes are bent from seamless steel pipes. The short pipe section is welded to the vent pipe 16, and the long pipe section is welded to the upper deck 18. Support pads 4 are used and evenly distributed at 120° to form a support frame 1. Secondly, assemble the step platform 2: weld the upper bracket 5 and lower bracket 10 with one end arc to the air pipe 16 at the designed distance, and grind the arc shape according to the outer diameter of the air pipe 16 to form the rooting component; Next, two diagonal angle steels 9 and connecting pads 15 are used to connect the lower bracket 10 to form a diagonal support. The connection is made using fasteners such as bolts 11 and nuts 12. Then, a horizontal angle steel 7 is used to connect the diagonal support laterally. The contact part of the horizontal angle steel 7 is connected by welding. Next, the U-shaped steps made of square steel 8 are welded to the cross bracing angle steel 7 to form the first step. After the above components are installed, the upper bracket 5 and the cross bracing angle steel 7 bracket must be at the same height. The corrugated steel plate 6 is installed on top of it and connected with bolts 11, washers 12, spring washers 13 and nuts 14 to form the second step platform, on which both feet stand. Finally, the handrail 3, made of bent round steel, is welded to the appropriate position of the ventilation pipe 16 for use by the crew when going up and down the step platform.

[0036] It is worth noting that all contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of the steel plate 6 and fasteners are not specifically limited and can be determined using conventional equipment. Electrical control components not mentioned in this technical solution are not shown in the figure because they are existing technologies, and will not be described here.

[0037] Finally, it should be noted that: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A PV valve support and operating platform, characterized in that: It includes a support frame (1), a step platform (2), and a handrail (3); The support frame (1) sits on the upper deck (18) and surrounds the support vent pipe (16), on which a PV valve (17) is installed. The stepping platform (2) is located on the side of the ventilation pipe (16) and is a fixed platform for crew members to climb the ventilation pipe (16) and stand on both feet. The handrail (3) is located on the side of the vent pipe (16) and faces the step platform (2) for use by crew members when going up and down the step platform.

2. The PV valve support and operating platform according to claim 1, characterized in that: The support frame (1) includes a support tube, which is made of seamless steel pipe bent into an arc shape. The support tube has a short pipe section and a long pipe section. Three support tubes are evenly distributed around the vent pipe (16) at 120°. The end of the short pipe section is connected to the vent pipe (16), and the end of the long pipe section is connected to the upper deck (18). A support pad (4) is provided between the end of the long pipe section and the upper deck (18).

3. The PV valve support and operating platform according to claim 2, characterized in that: The vent pipe (16) is fitted with a sleeve, and the short section of the support pipe is connected to the vent pipe (16) through the sleeve.

4. The PV valve support and operating platform according to claim 1, characterized in that: The step platform (2) includes an upper support (5), a corrugated steel plate (6), a cross bracing angle steel (7), a square steel (8), a diagonal bracing angle steel (9), a lower support (10), and a connecting pad (15). The step platform (2) is set between the two support pipes. At the end adjacent to the step platform (2) and the vent pipe (16), an upper support (5) is set at the top and a lower support (10) is set at the bottom. The upper support (5) and the lower support (10) are strip plates, and the ends adjacent to the vent pipe (16) are provided with arcs, which match the outer diameter of the vent pipe (16). The step platform (2) is located away from the end of the ventilation pipe (16) and is equipped with a horizontal bracing angle steel (7). The inner side of the horizontal bracing angle steel (7) is connected to the lower support (10) through the diagonal bracing angle steel (9) to form a diagonal support. A connecting pad (15) is provided at the bottom of the diagonal bracing angle steel (9) and the diagonal bracing angle steel (9) is fixed to the lower support (10) by fasteners. A square steel (8) is provided on the outside of the cross bracing angle steel (7). The square steel (8) is bent into a U-shaped step and welded to the cross bracing angle steel (7) to form the first step platform, which is used by the crew to climb to the working position of the PV valve (17). The upper support (5) is at the same height and level with the cross bracing angle steel (7). A corrugated steel plate (6) is laid between the upper support (5) and the cross bracing angle steel (7). One end of the corrugated steel plate (6) is connected to the upper support (5) by fasteners, and the other end is connected and fixed to the cross bracing angle steel (7) to form a second step platform for crew members to stand on with both feet to work.

5. The PV valve support and operating platform according to claim 4, characterized in that: The diagonal bracing angle steel (9) consists of two pieces arranged symmetrically.

6. The PV valve support and operating platform according to claim 4, characterized in that: The fasteners include bolts (11), washers (12), spring washers (13), and nuts (14).

7. The PV valve support and operating platform according to claim 4, characterized in that: The decorative steel plate (6) is a plate-shaped structure with folded edges on both sides. One folded edge forms the eaves of the first step platform, and the other folded edge has a slot to assemble the bracket (5), so that the flat surface of the decorative steel plate (6) forms a fixed step platform.

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