Sea valve opening device of oil tank truck
By designing an underwater valve opening device for oil tankers, the underwater valve can be opened manually or pneumatically, solving the risks of leakage and overpressure in emergency situations, ensuring rescue safety, and achieving rapid oil transfer and risk reduction.
Patent Information
- Application Number
- CN202521056718.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-27
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-05-27
AI Technical Summary
The existing underwater valves on oil tankers are difficult to open quickly in emergencies, leading to the risk of leakage and overpressure in the tank, which affects rescue efficiency and safety.
A device for opening the bottom valve of an oil tanker truck has been designed, comprising a housing, a partition, a metal strip, an electrostatic eliminator, a gas cylinder, and a pneumatic control valve. It can open the bottom valve manually or pneumatically, ensuring safety and stability.
It enables the rapid opening of the emergency shut-off valve, reduces the pressure inside the tank, minimizes the risk of oil leakage, ensures the safety of rescue personnel, and improves the efficiency of fire fighting and rescue.
Smart Images

Figure CN223961221U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oil tanker accident handling technology, and in particular to an oil tanker bottom valve opening device. Background Technology
[0002] Emergency shut-off valves, also known as bottom valves, are typically installed at the bottom of the tank body or end cap of hazardous materials transport vehicles. They are controlled to open or close using pneumatic, hydraulic, or mechanical means. In the event of a leak or other emergency, the emergency shut-off valve can be manually closed to stop the leakage of materials in the pipeline; or in the event of a fire, the fusible plug of the emergency shut-off valve will automatically melt and close the valve, providing a safety protection function.
[0003] Currently, tank truck bottom valves are mainly divided into two types: pneumatic and screw. The pneumatic bottom valve opening device consists of a gas cylinder and a pneumatic control valve, which uses the pressure of the gas cylinder to start and open the bottom valve. The screw bottom valve opening device consists of a screw and a sparkless tool set, which uses the screw to lift the bottom valve to achieve the purpose of backflow and pressure relief.
[0004] At fire and rescue sites, in order to transfer oil from tank trucks, reduce the pressure inside the tank in a timely manner, improve the efficiency of disaster response, and ensure the safe and controllable handling of tank truck accidents at the rescue site, a bottom valve opening device is urgently needed. Utility Model Content
[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a device for opening the bottom valve of an oil tanker.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A device for opening the bottom valve of an oil tanker includes a housing. A partition is fixed to the inner wall of the housing. A first metal strip and a second metal strip are fixed to the top outer wall of the partition. The top outer wall of the first metal strip has multiple semi-circular slots. A No. 10 screw and a No. 12 screw are engaged in the inner wall of the semi-circular slots. The top outer wall of the second metal strip has multiple rectangular slots. A No. 19 wrench and a No. 17 wrench are inserted into the inner wall of the rectangular slots. Static electricity elimination devices are respectively provided on the outer walls of the first metal strip and the second metal strip.
[0008] As a further improvement of this utility model: a set of gas cylinder placement holes are opened on one side of the outer wall of the box, and a 25 MPa gas cylinder is inserted into the inner wall of the gas cylinder placement hole. A slot is opened on the top outer wall of the box, and a pipeline placement groove is opened on one side of the outer wall of the box. A pneumatic control valve is placed on the inner wall of the pipeline placement groove.
[0009] As a further improvement of this utility model: the outer wall of the top of the box is connected to an L-shaped cover plate by a hinge.
[0010] As a further improvement of this utility model: friction pads are fixed at the four corners of the bottom outer wall of the box, and a partition strip is fixed at the top outer wall of the partition.
[0011] As a further improvement of this utility model: the outer wall of the L-shaped cover is provided with a lock, and a handle is fixed on one side of the outer wall of the box.
[0012] As a further improvement of this utility model, friction strips are fixed to the inner walls of both sides of the rectangular slot and the semi-circular slot.
[0013] As a further improvement of this utility model, the inner wall of the slot is fixed with a plurality of elastic strips.
[0014] As a further improvement of this utility model, a set of elastic pads is fixed to one side of the outer wall of the L-shaped cover plate.
[0015] The beneficial effects of this utility model are as follows:
[0016] 1. In actual use, this device can promptly open the emergency shut-off valve, thereby transferring oil in a timely manner, reducing the liquid pressure inside the tank, reducing the risk of oil leakage, and effectively preventing accidents caused by hazardous chemical leaks or tank overpressure that could result in casualties among firefighters and rescue personnel.
[0017] 2. The static eliminator located on one side of the first and second metal strips can release the static electricity conducted when the operator's hands come into contact with the corresponding No. 19 wrench, No. 17 wrench, No. 10 screw and No. 12 screw, thereby improving the safety of the bottom valve opening device during use.
[0018] 3. Operators can use locks to secure the L-shaped cover on top of the container, and then lift the container using the handles, making it easy for staff to carry the bottom valve opening device; the elastic strip can use its own elasticity to clamp the 25 MPa gas cylinder inserted into the slot, improving the stability of the 25 MPa gas cylinder inserted into the slot. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the main structure of an oil tanker bottom valve opening device proposed in this utility model;
[0020] Figure 2 This is a schematic diagram of the closing of an L-shaped cover plate of an oil tanker bottom valve opening device proposed in this utility model;
[0021] Figure 3 This is a schematic diagram of the housing structure of an oil tanker bottom valve opening device proposed in this utility model;
[0022] Figure 4 This is a schematic diagram of the slot structure of an oil tanker bottom valve opening device proposed in this utility model;
[0023] Figure 5 This is a schematic diagram of a screw-type sea valve structure for an oil tanker sea valve opening device proposed in this utility model.
[0024] In the diagram: 1-box body, 2-L-shaped cover plate, 3-lock, 4-friction pad, 5-handle, 6-elastic pad, 7-partition, 8-first metal strip, 9-second metal strip, 10-25 MPa gas cylinder, 11-gas cylinder placement hole, 12-pneumatic control valve, 13-pipe placement groove, 14-elastic strip, 15-slot, 16-static eliminator, 17-10 screw, 18-12 screw, 19-spacer, 20-17 wrench, 21-19 wrench, 22-rectangular slot, 23-semi-circular slot, 24-friction strip, 25-screw-type bottom valve, 26-valve body screw. Detailed Implementation
[0025] The technical solution of this patent will be further described in detail below with reference to specific embodiments.
[0026] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.
[0027] Example 1
[0028] A device for opening the bottom valve of an oil tanker, such as Figure 1-5 As shown, the device includes a housing 1. A partition 7 is fixed to the inner wall of the housing 1. A first metal strip 8 and a second metal strip 9 are fixed to the top outer wall of the partition 7. The top outer wall of the first metal strip 8 has multiple semi-circular slots 23. A No. 10 screw 17 and a No. 12 screw 18 are engaged in the inner wall of the semi-circular slots 23. The top outer wall of the second metal strip 9 has multiple rectangular slots 22. A No. 19 wrench 21 and a No. 17 wrench 20 are inserted into the inner wall of the rectangular slots 22. Static elimination devices 16 are respectively provided on the outer walls of the first metal strip 8 and the second metal strip 9.
[0029] A set of gas cylinder placement holes 11 are opened on one side of the outer wall of the box 1. A 25 MPa gas cylinder 10 is inserted into the inner wall of the gas cylinder placement hole 11. A slot 15 is opened on the top outer wall of the box 1. A pipeline placement groove 13 is opened on one side of the outer wall of the box 1. A pneumatic control valve 12 is placed on the inner wall of the pipeline placement groove 13.
[0030] The top outer wall of the box 1 is connected to an L-shaped cover plate 2 by a hinge;
[0031] Friction pads 4 are fixed at the four corners of the bottom outer wall of the box 1, and partition strips 19 are fixed at the top outer wall of the partition 7.
[0032] In this embodiment, the static electricity elimination device 16 is a light bulb connected to the first metal strip 8 and the second metal strip 9 via conductive lines, or it can be other devices capable of consuming static electricity.
[0033] When a tanker truck is involved in an accident or under high temperature conditions, and the pressure inside the tank continues to rise, if the conditions for transferring the tanker are available on site, and the pneumatic opening pipeline of the screw-type bottom valve 25 is damaged and fails, and it is necessary to manually open the valve to load and unload the liquid inside the tank, first lift the box 1 to the side of the screw-type bottom valve 25 installation location on the corresponding tanker truck, then lift the L-shaped cover 2 upwards, and then take out the corresponding No. 17 wrench 20 and No. 19 wrench 21. Use the corresponding No. 17 wrench 20 and No. 19 wrench 21 to remove the valve body screw 26 below the screw-type bottom valve 25. Then select the appropriate No. 10 screw 17 and No. 12 screw 18 and screw them into the screw-type bottom valve 25 until the top flange of the screw-type bottom valve 25 is completely lifted, and then the tanker transfer operation can be carried out.
[0034] The static electricity elimination device 16 located on one side of the first metal strip 8 and the second metal strip 9 can release the static electricity conducted when the operator's hands come into contact with the corresponding No. 19 wrench 21, No. 17 wrench 20, No. 10 screw 17 and No. 12 screw 18, thereby improving the safety of the bottom valve opening device during use.
[0035] When the bottom valve of the tanker truck is pneumatic, the operator first pulls the 25 MPa gas cylinder 10 out from one side of the tank 1, and then inserts the 25 MPa gas cylinder 10 into the slot 15 at the top of the tank 1. The slot 15 supports the 25 MPa gas cylinder 10 as a whole, improving its stability during operation. Then, the pneumatic control valve 12 is taken out from the pipeline placement slot 13, and connected to the 25 MPa gas cylinder 10 through the air guide pipe. Then, take the pneumatic control valve 12 to the unloading port control box at the rear of the tanker truck, disconnect the pneumatic controller air inlet line of the pneumatic type subsea valve, connect one end of the pneumatic control valve 12 to the air inlet of the subsea valve pneumatic controller, turn on the switch of the 25 MPa gas cylinder 10, adjust the output pressure of the 25 MPa gas cylinder 10 to 0.4-0.6 MPa, press the subsea valve pneumatic controller switch, and the subsea valve will be pneumatically opened. After removing the unloading port cover and opening the ball valve, the oil can be transferred to another tank.
[0036] In actual use, this device can promptly open the emergency shut-off valve, thereby transferring oil in a timely manner, reducing the liquid pressure inside the tank, reducing the risk of oil leakage, and effectively preventing accidents caused by hazardous chemical leaks or tank overpressure that could result in casualties among firefighters and rescue personnel.
[0037] The pneumatic and screw-type sea valves mentioned in this embodiment are all commercially available sea valves of this type and are mature existing technologies.
[0038] like Figure 1-2 As shown, the outer wall of the L-shaped cover plate 2 is equipped with a lock 3, and a handle 5 is fixed on one side of the outer wall of the box body 1. The operator can use the lock 3 to fix the L-shaped cover plate 2 covering the top of the box body 1, and then use the handle 5 to lift the box body 1, so that the staff can easily carry the bottom valve opening device.
[0039] like Figure 4 As shown, friction strips 24 are fixed to the inner walls of both sides of the rectangular slot 22 and the semi-circular slot 23 respectively; the friction strips 24 can increase the friction between the semi-circular slot 23 and the rectangular slot 22 and the contact surfaces of the No. 17 wrench 20, No. 19 wrench 21, No. 10 screw 17 and No. 12 screw 18, so that the multiple No. 17 wrench 20, No. 19 wrench 21, No. 10 screw 17 and No. 12 screw 18 can be placed more stably on the top of the first metal strip 8 and the second metal strip 9.
[0040] like Figure 4 As shown, a plurality of elastic strips 14 are fixed to the inner wall of the slot 15; the elastic strips 14 can clamp the 25 MPa gas cylinder 10 inserted into the slot 15 with their own elasticity, thereby improving the stability of the 25 MPa gas cylinder 10 inserted into the slot 15.
[0041] like Figure 2 As shown, a set of elastic pads 6 are fixed on one side of the outer wall of the L-shaped cover plate 2. After the L-shaped cover plate 2 is placed on the top of the box body 1, the elastic pads 6 on one side of the L-shaped cover plate 2 will press against the top of the corresponding first metal strip 8 and second metal strip 9, thereby squeezing and limiting the No. 17 wrench 20, No. 19 wrench 21, No. 10 screw 17 and No. 12 screw 18 clamped on the inner wall of the first metal strip 8 and the second metal strip 9, thereby improving the clamping and fixing effect of the first metal strip 8 and the second metal strip 9 on the No. 17 wrench 20, No. 19 wrench 21, No. 10 screw 17 and No. 12 screw 18.
[0042] Working principle: When a tanker truck is involved in an accident or under high temperature conditions, the pressure inside the tank continues to rise. If the conditions for transferring the tanker are available on site, and the pneumatic opening pipeline of the screw-type bottom valve 25 is damaged and fails, it is necessary to manually open the valve to load and unload the liquid inside the tank. First, lift the box 1 to the side of the installation position of the screw-type bottom valve 25 on the corresponding tanker truck. Then, lift the L-shaped cover 2 upwards. Next, take out the corresponding No. 17 wrench 20 and No. 19 wrench 21. Use the corresponding No. 17 wrench 20 and No. 19 wrench 21 to remove the valve body screw 26 below the screw-type bottom valve 25. Then, select the appropriate No. 10 screw 17 and No. 12 screw 18 and screw them into the screw-type bottom valve 25 until the top flange of the screw-type bottom valve 25 is completely lifted. Then, the tanker transfer operation can be carried out.
[0043] When the bottom valve of the tanker truck is pneumatic, the operator first pulls the 25 MPa gas cylinder 10 out from one side of the tank 1, and then inserts the 25 MPa gas cylinder 10 into the slot 15 at the top of the tank 1. The slot 15 supports the 25 MPa gas cylinder 10 as a whole, improving its stability during operation. Then, the pneumatic control valve 12 is taken out from the pipeline placement slot 13, and connected to the 25 MPa gas cylinder 10 through the air guide pipe. Then, take the pneumatic control valve 12 to the unloading port control box at the rear of the tanker truck, disconnect the pneumatic controller air inlet line of the pneumatic type subsea valve, connect one end of the pneumatic control valve 12 to the air inlet of the subsea valve pneumatic controller, turn on the switch of the 25 MPa gas cylinder 10, adjust the output pressure of the 25 MPa gas cylinder 10 to 0.4-0.6 MPa, press the subsea valve pneumatic controller switch, and the subsea valve will be pneumatically opened. After removing the unloading port cover and opening the ball valve, the oil can be transferred to another tank.
[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A device for opening the bottom valve of an oil tanker truck, comprising a housing (1), characterized in that, The inner wall of the box (1) is fixed with a partition (7). The top outer wall of the partition (7) is fixed with a first metal strip (8) and a second metal strip (9). The top outer wall of the first metal strip (8) has multiple semi-circular slots (23). The inner wall of the semi-circular slots (23) is fitted with screws No. 10 (17) and No. 12 (18). The top outer wall of the second metal strip (9) has multiple rectangular slots (22). The inner wall of the rectangular slots (22) is fitted with wrenches No. 19 (21) and No. 17 (20). The outer walls of the first metal strip (8) and the second metal strip (9) are respectively provided with static elimination devices (16).
2. The oil tanker bottom valve opening device according to claim 1, characterized in that, A set of gas cylinder placement holes (11) are opened on one side of the outer wall of the box (1). A 25 MPa gas cylinder (10) is inserted into the inner wall of the gas cylinder placement hole (11). A slot (15) is opened on the top outer wall of the box (1). A pipeline placement groove (13) is opened on one side of the outer wall of the box (1). A pneumatic control valve (12) is placed on the inner wall of the pipeline placement groove (13).
3. The oil tanker bottom valve opening device according to claim 2, characterized in that, The top outer wall of the box (1) is connected to an L-shaped cover plate (2) by a hinge.
4. The oil tanker subsea valve opening device according to claim 3, characterized in that, Friction pads (4) are fixed at the four corners of the bottom outer wall of the box (1), and partition strips (19) are fixed at the top outer wall of the partition (7).
5. The oil tanker subsea valve opening device according to claim 3, characterized in that, The outer wall of the L-shaped cover plate (2) is provided with a lock (3), and a handle (5) is fixed on one side of the outer wall of the box body (1).
6. The oil tanker subsea valve opening device according to claim 1, characterized in that, Friction strips (24) are fixed to the inner walls of both sides of the rectangular slot (22) and the semi-circular slot (23).
7. The oil tanker subsea valve opening device according to claim 2, characterized in that, The inner wall of the slot (15) is fixed with multiple elastic strips (14).
8. The oil tanker bottom valve opening device according to claim 5, characterized in that, A set of elastic pads (6) are fixed on one side of the outer wall of the L-shaped cover plate (2).