Pressure container tank with portable valve

Abstract

The invention belongs to the technical field of pressure containers, and discloses a pressure container with a portable valve, and a first airflow switch device is connected between a container body and a safety valve; the first airflow switch device comprises a valve body, one end of the valve body is hermetically connected with the connecting pipe, and the other end of the valve body is hermetically connected with the safety valve; a valve ball mounting cavity is formed in the valve body, a ball is rotationally connected into the valve ball mounting cavity, a straight through hole is formed in the middle of the ball, the valve body is rotationally connected with a valve rod in a sealed mode, one end of the valve rod penetrates through the valve body and is fixedly connected with the ball, and the end, located on the outer side of the valve body, of the valve rod is connected with a rotating piece. The axis of the valve rod is perpendicular to the axis of the straight-through hole, the valve rod rotates, and the ball body rotates along the axis of the valve rod. The outlet pipe is connected with an exhaust pipe, and the exhaust pipe is provided with a second airflow switch device; the technical problems that when an existing pressure container tank safety valve is subjected to annual inspection or has a gas leakage fault, time and labor are consumed during disassembly and assembly of the safety valve, and manpower and gas resource cost is increased are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pressure vessel tanks, in particular to a pressure vessel tank with a portable valve. BACKGROUND

[0002] As a key equipment in the fields of industrial production, medical equipment, etc., pressure vessel tanks are mainly used for storing and processing gas or liquid media with certain pressure. In industrial production, they can be used for storage and reaction of chemical raw materials; in the medical field, the gas storage tanks and water tanks of oxygen cabins, as typical applications of pressure vessel tanks, bear the important functions of storing high-pressure oxygen and separating water from oxygen, etc., and provide a stable and reliable gas source for high-pressure oxygen therapy.

[0003] As a core safety accessory of pressure vessel tanks, safety valves automatically open when the internal pressure of the container exceeds the predetermined value, rapidly discharge the medium, and prevent the pressure from continuously rising to cause safety accidents such as explosion, and automatically close when the pressure decreases to the allowable value. At present, common safety valves of pressure vessel tanks mainly include spring safety valves, heavy hammer safety valves, and pilot safety valves. The spring safety valve balances the medium pressure by the spring force, and sets the opening pressure by adjusting the spring compression amount; the heavy hammer safety valve balances the medium pressure by the gravity of the heavy hammer through a lever system; the pilot safety valve is composed of a main valve and a pilot valve, and the pilot valve senses the pressure change and controls the opening and closing of the main valve. These safety valves provide effective protection for the safe operation of pressure vessel tanks through different working principles.

[0004] However, the current safety valves and pressure vessel tanks are directly connected, which exposes great limitations when the safety valve fails or needs to be inspected annually. Once the safety valve needs to be replaced or is subjected to annual inspection according to the regulations, the operator must first release all the gas in the container tank before disassembling the safety valve. This process not only wastes time and effort, increases the cost of gas resources, and increases the operating cost, but also seriously affects the normal use efficiency of the equipment and prolongs the downtime of the equipment. At the same time, frequent discharge and replenishment of gas also increase the safety risk in the operation process, posing a potential threat to the personal safety of the operator and the stable operation of the equipment. SUMMARY

[0005] The present application aims to provide a pressure vessel tank with a portable valve, which solves the technical problem of time-consuming and labor-intensive disassembly of the safety valve, increased labor and gas resource cost when the safety valve of the existing pressure vessel tank is inspected annually or fails.

[0006] In order to achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0007] The utility model provides a pressure vessel tank with portable valve, including container tank body, the safety valve is connected through the connecting pipe, the first gas flow switch device for leading or blocking gas flow is connected between the container tank body and the safety valve, the first gas flow switch device includes the valve body, one end of the valve body is sealedly connected with the connecting pipe through the inlet pipe, the other end of the valve body is sealedly connected with the safety valve through the outlet pipe, the valve ball installation cavity is equipped in the valve body, the ball body is rotatably connected in the valve ball installation cavity, the straight through hole is set up in the middle part of the ball body, the valve rod is sealedly rotatably connected with the valve body, one end of the valve rod passes through the valve body and is tightly connected with the ball body, the other end of the valve rod is located the outside of the valve body, the one end of the valve rod is located the outside of the valve body and is connected with the rotating piece, the axis of the valve rod is perpendicular to the axis of the straight through hole, the ball body rotates along the axis of the valve rod, the outlet pipe is connected with the exhaust pipe, the exhaust pipe is equipped with the second gas flow switch device.

[0008] Further, the exhaust pipe includes a straight pipe and an L-shaped air guide pipe, one end of the exhaust pipe is sealingly connected with the outlet pipe, the other end of the exhaust pipe is sealingly connected with the second gas flow switch device, the outlet of the second gas flow switch device is sealingly connected with the L-shaped air guide pipe, and the free end of the air guide pipe is arranged in a direction away from the ground.

[0009] Further, the connecting pipe is L-shaped, and the straight through hole includes a first state and a second state. In the first state, the straight through hole is parallel to the end of the connecting pipe away from the container tank body, and in the second state, the straight through hole is perpendicular to the end of the connecting pipe away from the container tank body.

[0010] Further, the inner diameters of the inlet pipe and the outlet pipe are the same as the diameter of the straight through hole, and the diameter of the straight through hole is greater than or equal to the inner diameter of the connecting pipe.

[0011] Further, one end of the valve body is integrally formed with the inlet pipe, the inlet pipe is sealingly connected with the connecting pipe through threads, the other end of the valve body is integrally formed with the outlet pipe, and the outlet pipe is sealingly connected with the safety valve through threads.

[0012] Further, one end of the valve body is integrally formed with the inlet pipe, the inlet pipe is sealingly connected with the connecting pipe through a flange, the other end of the valve body is integrally formed with the outlet pipe, and the outlet pipe is sealingly connected with the safety valve through a flange.

[0013] The principle and beneficial effects of the technical solution are as follows:

[0014] 1. The pressure vessel tank with a convenient valve provided by the present application, the container tank body is used for storing high-pressure gas, and the container tank body is provided with a pressure gauge, an air inlet pipe and an air outlet pipe; the container tank body is connected with a safety valve through a connecting pipe; the common safety valve of the pressure vessel tank mainly includes a spring safety valve, a heavy hammer safety valve and a pilot safety valve; the spring safety valve balances the medium pressure by the elastic force of the spring, and the opening pressure is set by adjusting the compression amount of the spring; the heavy hammer safety valve balances the medium pressure by the gravity of the heavy hammer through a lever system; the pilot safety valve is composed of a main valve and a pilot valve; the pilot valve senses the pressure change and controls the opening and closing of the main valve; when the internal pressure of the container exceeds the predetermined value, the main valve is automatically opened to rapidly discharge the medium, thereby preventing the pressure from continuously rising to cause explosion and other safety accidents; when the pressure decreases to the allowable value, the main valve is automatically closed, thereby providing effective protection for the safe operation of the pressure vessel tank; a first gas flow switch device for conducting or blocking the gas flow is connected between the container tank body and the safety valve; specifically, the first gas flow switch device includes a valve body, the two ends of the valve body are sealingly connected with the container tank body and the safety valve through an inlet pipe and an outlet pipe respectively, the valve body is provided with a valve ball mounting cavity, a ball body with a straight-through hole is arranged in the middle of the valve body, a valve rod, an exhaust pipe is connected to the outlet pipe, and the exhaust pipe is provided with a second gas flow switch device; in the normal working state, the first gas flow switch device is in an open state, the second gas flow switch device is in a closed state, and the structure and working principle of the first gas flow switch device and the second gas flow switch device are the same, that is, the straight-through hole is in communication with the inlet pipe and the outlet pipe to ensure the flow of the gas flow, thereby ensuring the normal work of the safety valve; when the safety valve is damaged or needs to be inspected, the valve rod is rotated, the valve rod drives the ball body to rotate along the axial direction, so that the inlet and the opening of the straight-through hole are sealed by the inner wall of the valve ball mounting cavity, thereby blocking the gas flow into the safety valve, the second gas flow switch device is opened, and the gas in the safety valve is discharged, so that the safety valve can be smoothly disassembled; in this way, the operator does not need to release all the gas in the container tank before disassembling the safety valve, thereby saving the cost, improving the normal use efficiency of the equipment and reducing the downtime of the equipment. At the same time, the safety risk caused by frequent inflation and deflation is avoided, and the service life of the equipment is prolonged.

[0015] 2. The pressure vessel tank with a convenient valve provided by the present application, the straight pipe, the L-shaped gas guide pipe and the second gas flow switch device are arranged to reversely discharge the gas upward, thereby avoiding the harm of the gas to the operator and increasing the discharge speed of the gas.

[0016] 3. The present invention provides a pressure vessel tank with a convenient valve. The connecting pipe is L-shaped, and the straight-through hole includes a first state and a second state. In the first state, the straight-through hole is parallel to the end of the connecting pipe away from the container body, that is, the straight-through hole is completely connected to the connecting pipe. This does not obstruct the gas flow to the safety valve and maximizes the exhaust speed of the safety valve. In the second state, the straight-through hole is perpendicular to the end of the connecting pipe away from the container body, so that the contact area between the two openings of the ball and the valve ball mounting cavity is maximized, increasing the sealing effect of the airflow. In addition, the inner diameters of the inlet pipe and the outlet pipe are the same as the diameter of the straight-through hole, and the diameter of the straight-through hole is greater than or equal to the inner diameter of the connecting pipe. This arrangement ensures that the gas flow speed to the safety valve will not decrease after the addition of the second airflow switching device, and will not affect the exhaust speed of the safety valve. For example, when the pressure inside the container tank reaches a certain value and drives the safety valve to automatically exhaust, if the diameter of the straight-through hole is greater than or equal to the inner diameter of the connecting pipe, the airflow will not decrease after passing through the straight-through hole, and will not affect the exhaust speed of the safety valve, further ensuring the normal operation of the safety valve.

[0017] 4. The present invention provides a pressure vessel tank with a convenient valve. One end of the valve body is integrally formed with the inlet pipe, and the inlet pipe and the connecting pipe are connected by a threaded seal. The other end of the valve body is integrally formed with the outlet pipe, and the outlet pipe and the safety valve are connected by a threaded seal. The threaded connection makes installation and maintenance more convenient. One end of the valve body is integrally formed with the inlet pipe, and the inlet pipe and the connecting pipe are connected by a flange seal. The other end of the valve body is integrally formed with the outlet pipe, and the outlet pipe and the safety valve are connected by a flange seal. The flange connection can withstand a higher pressure limit and can be used for container tanks with higher pressure limits. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a pressure vessel tank with a convenient valve according to the present invention;

[0019] Figure 2 for Figure 1 A magnified structural diagram at point C;

[0020] Figure 3 This is a front view of a pressure vessel tank with a convenient valve according to the present invention;

[0021] Figure 4 for Figure 3 Sectional view of AA;

[0022] Figure 5 for Figure 3 A cross-sectional view of BB.

[0023] The names of the corresponding labels in the attached diagram are:

[0024] 1. Container body; 2. Connecting pipe; 3. Safety valve; 301. Wrench clamp section, first airflow switch device; 5. Valve body; 6. Inlet pipe; 7. Outlet pipe; 8. Valve ball mounting cavity; 9. Ball; 10. Straight through hole; 11. Valve stem; 12. Rotating component; 13. Sealing ring; 14. Packing; 15. Gland; 16. Second airflow switch device; 17. Straight pipe; 18. Air guide pipe; 19. Mounting base; 20. Valve seat. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0026] like Figures 1 to 5 As shown, a pressure vessel with a convenient valve includes a vessel body 1 for storing high-pressure gas. The vessel body 1 is equipped with a pressure gauge, an inlet pipe, and an outlet pipe. The vessel body 1 is connected to a safety valve 3 via an L-shaped connecting pipe 2. A first airflow switch device 4 for conducting or blocking airflow is connected between the vessel body 1 and the safety valve 3. The first airflow switch device 4 includes a valve body 5. One end of the valve body 5 is integrally formed with an inlet pipe 6, which is connected to the connecting pipe 2 by a threaded seal. The other end of the valve body 5 is integrally formed with an outlet pipe 7, which is connected to the safety valve 3 by a threaded seal. A wrench clamp section 301 is provided at the connection between the safety valve 3 and the outlet pipe 7 to facilitate the installation and removal of the safety valve 3.

[0027] The valve body 5 has a ball mounting cavity 8, and a ball 9 is rotatably connected inside the ball mounting cavity 8. A through hole 10 is opened in the middle of the ball 9. In practical applications, valve seats 20 are provided at both the inlet and outlet of the valve body 5. The valve seats 20 provide a seal between the ball 9 and the valve body 5, and the sealing surface of the valve seat 20 is tightly fitted with the surface of the ball 9 to prevent air leakage. A valve stem 11 is rotatably connected to the valve body 5. One end of the valve stem 11 passes through the valve body 5 and is securely connected to the ball 9. The other end of the valve stem 11... The valve stem 11 is located on the outside of the valve body 5. One end of the valve stem 11 located on the outside of the valve body 5 is connected to a rotating part 12. In actual application, the valve body 5 is connected to a mounting base 19. The mounting base 19 has a through hole inside. The valve stem 11 is located in the through hole. The through hole is provided with a sealing ring 13, a sealing packing 14 and a gland 15 from bottom to top. The gland 15 is fixedly connected to the mounting base 19. The valve stem 11 and the gland 15 are rotatably connected by a bearing. In addition, the gland 15 is provided with open and closed indicator marks for easy operation.

[0028] The axis of valve stem 11 is perpendicular to the axis of through hole 10. When valve stem 11 rotates, ball 9 rotates along the axis of valve stem 11. Through hole 10 has a first state and a second state. In the first state, through hole 10 is parallel to the end of connecting pipe 2 away from container body 1. In the second state, through hole 10 is perpendicular to the end of connecting pipe 2 away from container body 1. The inner diameters of inlet pipe 6 and outlet pipe 7 are the same as the diameter of through hole 10, and the diameter of through hole 10 is greater than or equal to the inner diameter of connecting pipe 2. Outlet pipe 7 is connected to an exhaust pipe, which is equipped with a second airflow switch device 16. The first airflow switch device 4 and the second airflow switch device 16 have the same structure and principle. The exhaust pipe includes a straight pipe 17 and an L-shaped air guide pipe 18. One end of the exhaust pipe is sealed to outlet pipe 7, and the other end is sealed to the second airflow switch device 16. The outlet of the second airflow switch device 16 is sealed to the L-shaped air guide pipe 18, and the free end of the air guide pipe 18 faces away from the ground.

[0029] Example 2

[0030] The difference between this embodiment and Embodiment 1 is that: one end of the valve body 5 is integrally formed with the inlet pipe 6, and the inlet pipe 6 and the connecting pipe 2 are sealed and connected by a flange. That is, the inlet pipe 6 and the valve body 5 are respectively connected to mutually mating flanges at their respective ends, and a sealing gasket is provided at the connection of the two flanges to achieve airflow sealing; the other end of the valve body 5 is integrally formed with the outlet pipe 7, and the outlet pipe 7 and the safety valve 3 are sealed and connected by a flange. That is, the outlet pipe 7 and the safety valve 3 are respectively connected to mutually mating flanges at their respective ends, and a sealing gasket is provided at the connection of the two flanges to achieve airflow sealing.

[0031] Example 3

[0032] The difference between this embodiment and embodiment 1 is that the connecting pipe 2 is a straight pipe and is located at the top of the container body 1.

[0033] The specific implementation process is as follows:

[0034] When using this pressure vessel, if safety valve 3 is damaged or requires annual inspection, rotate valve stem 11. Valve stem 11 drives ball 9 to rotate along the axis of valve stem 11, so that the inlet and outlet of straight through hole 10 are sealed by the inner wall of valve ball mounting cavity 8, thereby blocking the flow of air into safety valve 3. Open the second airflow switch device 16 to discharge the gas in safety valve 3, and disassemble safety valve 3. After the annual inspection or maintenance is completed, install the safety valve 3 that is working properly, close the second airflow switch device 16, and rotate valve stem 11 in the opposite direction. Valve stem 11 drives ball 9 to rotate along its axis, so that straight through hole 10 is parallel to inlet pipe 6 and outlet pipe 7, fully opening straight through hole 10 to ensure normal operation of safety valve 3.

[0035] This invention provides a pressure vessel tank with a convenient valve, allowing operators to install and remove the safety valve 3 without first releasing all the gas inside the tank. This saves costs, improves the normal operating efficiency of the equipment, and reduces downtime. It also avoids the safety risks associated with frequent inflation and deflation, extending the equipment's lifespan. The straight pipe 17, the L-shaped gas guide pipe 18, and the second airflow switch device 16 reverse the gas discharge direction upwards, preventing gas injury to operators and increasing the gas discharge rate.

[0036] The through-hole 10 has a first state and a second state. In the first state, the through-hole 10 is fully connected to the connecting pipe 2, which does not obstruct the gas flow to the safety valve 3 and maximizes the exhaust speed of the safety valve 3. In the second state, the through-hole 10 is perpendicular to the end of the connecting pipe 2 away from the container body 1, maximizing the contact area between the two openings of the ball 9 and the valve ball mounting cavity 8, thus increasing the sealing effect of the airflow. In addition, the inner diameters of the inlet pipe 6 and the outlet pipe 7 are the same as the diameter of the through-hole 10, and the diameter of the through-hole 10 is greater than or equal to the inner diameter of the connecting pipe 2. This arrangement ensures that the gas flow speed to the safety valve 3 will not decrease after the addition of the second airflow switch device 16, and will not affect the exhaust speed of the safety valve 3. For example, when the pressure inside the container body 1 reaches a certain value and drives the safety valve 3 to automatically exhaust, if the diameter of the through-hole 10 is greater than or equal to the inner diameter of the connecting pipe 2, the airflow will not decrease after passing through the through-hole 10, and will not affect the exhaust speed of the safety valve 3, further ensuring the normal operation of the safety valve 3.

[0037] The above descriptions are merely embodiments of the present invention, and common knowledge regarding specific technical solutions or characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A pressure vessel tank with a portable valve, comprising a vessel tank body (1) to which a safety valve (3) is connected through a connecting pipe (2), characterized in that, The first gas flow switch device (4) is connected between the container tank body (1) and the safety valve (3) for conducting or blocking gas flow; the first gas flow switch device (4) comprises a valve body (5), one end of the valve body (5) is sealingly connected with the connecting pipe (2) through an inlet pipe (6), the other end of the valve body (5) is sealingly connected with the safety valve (3) through an outlet pipe (7); a valve ball mounting cavity (8) is arranged in the valve body (5), a ball (9) is rotatably connected in the valve ball mounting cavity (8), a straight-through hole (10) is formed in the middle of the ball (9), a valve rod (11) is sealingly rotatably connected with the valve body (5), one end of the valve rod (11) penetrates through the valve body (5) and is tightly connected with the ball (9), the other end of the valve rod (11) is located outside the valve body (5), one end of the valve rod (11) located outside the valve body (5) is connected with a rotating member (12); the axis of the valve rod (11) is perpendicular to the axis of the straight-through hole (10), the valve rod (11) rotates, and the ball (9) rotates along the axis of the valve rod (11); the outlet pipe (7) is connected with an exhaust pipe, and the exhaust pipe is provided with a second gas flow switch device (16).

2. A pressure vessel tank with a portable valve according to claim 1, characterized in that, The exhaust pipe comprises a straight pipe (17) and an L-shaped gas guide pipe (18), one end of the exhaust pipe is sealingly connected with the outlet pipe (7), the other end of the exhaust pipe is sealingly connected with the second gas flow switch device (16), the outlet of the second gas flow switch device (16) is sealingly connected with the L-shaped gas guide pipe (18), and the free end of the gas guide pipe (18) is arranged in a direction away from the ground.

3. A pressure vessel tank with a convenient valve according to claim 1, characterized in that, The connecting pipe (2) is L-shaped, the straight-through hole (10) comprises a first state and a second state, in the first state, the straight-through hole (10) is parallel to one end of the connecting pipe (2) away from the container tank body (1), and in the second state, the straight-through hole (10) is perpendicular to one end of the connecting pipe (2) away from the container tank body (1).

4. A pressurized container canister with a convenient valve according to claim 3, characterized in that, The inner diameters of the inlet pipe (6) and the outlet pipe (7) are the same as the diameter of the straight-through hole (10), and the diameter of the straight-through hole (10) is greater than or equal to the inner diameter of the connecting pipe (2).

5. The pressurized container can according to claim 1, wherein, One end of the valve body (5) is integrally formed with the inlet pipe (6), the inlet pipe (6) is sealingly connected with the connecting pipe (2) through threads, the other end of the valve body (5) is integrally formed with the outlet pipe (7), and the outlet pipe (7) is sealingly connected with the safety valve (3) through threads.

6. A pressurized container canister with a convenient valve as defined in claim 1, characterized in that, One end of the valve body (5) is integrally formed with the inlet pipe (6), the inlet pipe (6) is sealingly connected with the connecting pipe (2) through a flange, the other end of the valve body (5) is integrally formed with the outlet pipe (7), and the outlet pipe (7) is sealingly connected with the safety valve (3) through a flange.

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