Mechanical high pressure cabin overpressure prevention device

Abstract

The utility model discloses a kind of mechanical high-pressure cabin anti-overpressure devices, including the pressure relief stake of being installed at high-pressure cabin bottom, the pressure relief groove that is communicated with water storage area is opened in this pressure relief stake;Pressure relief groove is further provided with pressure relief pipe, the water inlet of this pressure relief pipe is installed with anti-overpressure closure mechanism, and pressure relief pipe is further communicated with the outside of high-pressure cabin.Affinity effect: the highest water level line of water storage area corresponds the maximum pressure of high-pressure cabin, when the water level in water storage area exceeds highest water level line, water flows into pressure relief groove, controls anti-overpressure closure mechanism to open the water inlet of pressure relief pipe, water is discharged outside high-pressure cabin through pressure relief pipe, so that the water level in water storage area is reduced, to control the pressure of high-pressure cabin, realize automatic pressure reduction, and the above-mentioned device does not need power drive and artificial operation, can prevent high-pressure cabin overpressure under any circumstances, to improve its safety and reliability, after water flow is discharged, anti-overpressure closure mechanism resets, and the water inlet of pressure relief pipe is closed again.

Description

Technical Field

[0001] This utility model relates to the field of high-pressure chamber technology, and in particular to a mechanical high-pressure chamber overpressure prevention device. Background Technology

[0002] As people's living standards improve, home-use hyperbaric chambers are becoming increasingly popular. Compared to medical-grade hyperbaric chambers, home-use chambers are suitable for a wider range of people. They can be used not only as an adjunct treatment for patients with respiratory and cardiovascular diseases, but also to relieve fatigue and improve sleep in the general population.

[0003] The high-pressure, high-oxygen environment of a hyperbaric chamber increases the oxygen content in the blood, ensuring a more abundant oxygen supply to all tissues and organs. This improves cell metabolism, effectively boosts energy and vitality, relieves fatigue, and leaves one feeling more refreshed. Simultaneously, sufficient oxygen can regulate the nervous system, alleviate tension, facilitate deeper sleep, improve sleep quality, and promote more restful sleep.

[0004] The water-filled hyperbaric oxygen chamber, powered by tap water pressure, fundamentally eliminates the need for an air compressor, removing its various drawbacks. Its safety and operability have promoted the development of home-based hyperbaric oxygen therapy. Typically, water is pressurized within a sealed chamber, and the oxygen concentration is increased using an oxygen generator or oxygen cylinders, thus achieving high-pressure, high-oxygen conditions inside. To ensure the safety of the hyperbaric chamber, a pressure relief device is installed to prevent overpressure.

[0005] However, most existing pressure relief devices are either electric or manual. Electric pressure relief relies on electricity, while manual pressure relief relies on manual operation by the user. Both types of pressure relief devices are prone to failure under certain circumstances, which can lead to overpressure in the hyperbaric chamber.

[0006] Therefore, the reliability and safety of existing pressure relief devices still need to be improved. Summary of the Invention

[0007] The purpose of this invention is to provide a mechanical high-pressure chamber overpressure prevention device that can release pressure under any overpressure condition, thereby preventing overpressure inside the high-pressure chamber and improving its safety and reliability.

[0008] The key to the mechanical high-pressure tank overpressure prevention device is the pressure relief pile installed at the bottom of the high-pressure tank, which has a pressure relief groove that communicates with the water storage area. The pressure relief tank is also equipped with a pressure relief pipe, which has an overpressure prevention sealing mechanism installed at its inlet, and the pressure relief pipe is also connected to the outside of the high-pressure chamber.

[0009] The highest water level in the reservoir corresponds to the maximum pressure in the high-pressure chamber. When the water level in the reservoir exceeds the highest water level, water flows into the pressure relief tank, controlling the overpressure prevention sealing mechanism to open the inlet of the pressure relief pipe. Water is discharged out of the high-pressure chamber through the pressure relief pipe, lowering the water level in the reservoir and thus controlling the pressure in the high-pressure chamber, achieving automatic pressure reduction. Moreover, the above device does not require electric drive or manual operation and can prevent overpressure in the high-pressure chamber under any circumstances, thereby improving its safety and reliability. After the water is discharged, the overpressure prevention sealing mechanism resets and closes the inlet of the pressure relief pipe again.

[0010] Furthermore, the inlet of the pressure relief pipe faces upwards.

[0011] When the water level is higher than the pressure relief pile, the water flows into the pressure relief tank through the groove opening and gradually floods the overpressure prevention and sealing mechanism at the inlet of the pressure relief pipe. The overpressure prevention and sealing mechanism performs self-regulating drainage and pressure relief to ensure the pressure stability in the high hydraulic chamber.

[0012] Furthermore, the outlet of the pressure relief pipe is connected to a drainage system.

[0013] Water flowing into the pressure relief tank is discharged into the drainage system through the pressure relief pipe to achieve drainage and pressure reduction.

[0014] Furthermore, the height of the opening of the pressure relief groove is the highest water level line of the water storage area; The inlet of the pressure relief pipe is higher than the bottom of the pressure relief tank and lower than the opening of the pressure relief tank.

[0015] Furthermore, the overpressure prevention sealing mechanism is equipped with a gravity-type pressure relief cover and a float fixed on the gravity-type pressure relief cover; The gravity-type pressure relief cover is installed on the inlet of the pressure relief pipe, and a sealing gasket is installed on the inlet of the gravity-type pressure relief cover or the pressure relief pipe. The sealing gasket is located between the gravity-type pressure relief cover and the inlet of the pressure relief pipe; The sum of the gravity of the gravity-type pressure relief cover and the gravity of the float is less than the sum of the buoyancy of the gravity-type pressure relief cover and the float after it is completely submerged.

[0016] The sum of the gravity of the gravity-type pressure relief cover and the gravity of the float is two-thirds of the sum of the buoyancy of the gravity-type pressure relief cover and the float after it is completely submerged.

[0017] The water level in the pressure relief tank rises, causing the gravity-type pressure relief cover to open the inlet of the pressure relief pipe, allowing for drainage and pressure reduction.

[0018] When there is no overpressure, the gravity-type pressure relief cover seals the pressure relief pipe by its own weight, keeping the high-pressure chamber under high pressure and preventing foreign objects from falling into the pressure relief pipe and clogging it.

[0019] A sealing gasket is installed between the gravity-type pressure relief cover and the inlet of the pressure relief pipe to enhance the sealing effect of the gravity-type pressure relief cover and further ensure the high-pressure state inside the high-pressure chamber.

[0020] Furthermore, the float has a dome-shaped structure, the gravity-type pressure relief cover is installed inside the float, and the pressure relief pipe extends upward into the float and is in close contact with the gravity-type pressure relief cover; Alternatively, the gravity-type pressure relief cover may be a dome-shaped structure, the float may be a ring-shaped structure, the float may be fitted onto the gravity-type pressure relief cover, and the pressure relief pipe may extend upward into the gravity-type pressure relief cover.

[0021] Furthermore, the overpressure protection sealing mechanism is provided with a hollow metal float and a magnetic ring, as well as a float limiting block surrounding the hollow metal float. The magnetic ring is installed on the inlet of the pressure relief pipe, and after the pressure relief pipe extends into the float limiting block, the hollow metal float is in close contact with the magnetic ring. The sum of the magnetic attraction of the magnetic ring, the weight of the hollow metal float, and the weight of the float limiting block is less than the sum of the buoyancy of the hollow metal float after it is completely submerged and the buoyancy of the float limiting block after it is completely submerged.

[0022] The sum of the magnetic attraction of the magnetic ring, the weight of the hollow metal float, and the weight of the float limiting block is two-thirds of the sum of the buoyancy of the hollow metal float after it is completely submerged and the buoyancy of the float limiting block after it is completely submerged.

[0023] Hollow metal floats can be wooden balls with iron plates or hollow plastic balls.

[0024] The water level in the pressure relief tank rises, causing the hollow metal float to open the inlet of the pressure relief pipe, allowing for drainage and pressure reduction.

[0025] When there is no overpressure, the hollow metal float seals the pressure relief pipe by its own weight and the magnetic attraction of the magnetic ring, keeping the high-pressure chamber under high pressure and preventing foreign objects from falling into the pressure relief pipe and clogging it.

[0026] The magnetic attraction of the magnetic ring to the hollow metal float enhances the sealing effect of the gravity-type pressure relief cover, further ensuring the high-pressure state inside the high-pressure chamber.

[0027] Furthermore, the float limiting block has a dome-shaped structure, and the hollow metal float is bonded inside the float limiting block.

[0028] Furthermore, a pressure relief cover plate is placed on the opening of the pressure relief groove, with a gap between the pressure relief cover plate and the pressure relief pile, and a flow channel between the pressure relief cover plate and the opening of the pressure relief groove.

[0029] The pressure relief cover can prevent foreign objects from entering the pressure relief groove and prevent the pressure relief groove from becoming blocked.

[0030] Furthermore, a drain outlet is provided at the bottom of the high-pressure chamber, and this drain outlet is connected to a drainage system; A spring-loaded plug is installed on the drain outlet.

[0031] The spring-loaded plug facilitates active pressure relief.

[0032] Beneficial effects: This invention can automatically depressurize when the high-pressure chamber is overpressurized, maintaining a constant maximum pressure value inside the high-pressure chamber. Moreover, this invention does not require electric drive or human operation, eliminating the risk of electric leakage and actively maintaining a safe pressure in case of personal injury, thereby improving its safety and reliability. Attached Figure Description

[0033] Figure 1 This is an assembly diagram of Example 1; Figure 2 for Figure 1 Enlarged schematic diagram of part a in the middle; Figure 3 This is a schematic diagram of the assembly in Example 2; Figure 4 for Figure 3 Enlarged schematic diagram of part b in the middle. Detailed Implementation

[0034] The specific embodiments and working principles of this utility model will be further described in detail below with reference to the accompanying drawings.

[0035] like Figure 1 , 2 As shown in Figures 3 and 4, the high-pressure chamber is equipped with a water storage area 1. A mechanical high-pressure chamber overpressure prevention device is installed in the water storage area 1. The mechanical high-pressure chamber overpressure prevention device includes a pressure relief pile 2 fixed in the high-pressure chamber. The pressure relief pile 2 has a pressure relief groove 2a that communicates with the water storage area 1. The opening of the pressure relief groove 2a faces upward, and the height of the opening of the pressure relief groove 2a is the highest water level line of the water storage area 1. like Figure 1 , 2 As shown in Figures 3 and 4, a pressure relief pipe 3 is installed inside the pressure relief tank 2a. The inlet of the pressure relief pipe 3 extends from the bottom of the pressure relief tank 2a upwards and then into the pressure relief tank 2a. The inlet of the pressure relief pipe 3 faces upwards and is equipped with an overpressure prevention sealing mechanism 4. The outlet of the pressure relief pipe 3 is connected to the drainage system of the high-pressure chamber. like Figure 1 , 2 As shown in Figures 3 and 4, the inlet of the pressure relief pipe 3 is higher than the bottom of the pressure relief tank 2a and lower than the opening of the pressure relief tank 2a.

[0036] like Figure 1 , 2As shown in Figures 3 and 4, a pressure relief cover plate 5 is placed on the opening of the pressure relief groove 2a. A gap is left between the pressure relief cover plate 5 and the pressure relief pile 2. A pressure relief hole 5a is opened on the pressure relief cover plate 5, which communicates with the pressure relief groove 2a. The pressure relief hole 5a is a flow channel between the pressure relief cover plate 5 and the opening of the pressure relief groove 2a.

[0037] like Figure 1 , 3 As shown, a drain outlet 1a is provided in the water storage area 1, and a spring-loaded plug 6 is installed on the drain outlet 1a, and the drain outlet 1a is connected to the drainage system. Example 1:

[0038] like Figure 1 , 2 As shown, the overpressure relief sealing mechanism 4 is equipped with a gravity-type pressure relief cover 4-2 and a float 4-1, wherein the float 4-1 has a dome structure and the gravity-type pressure relief cover 4-2 is installed inside the float 4-1; The inlet of the pressure relief pipe 3 extends into the float 4-1 and is in close contact with the gravity pressure relief cover 4-2; A sealing gasket 4-3 is provided between the inlet of the gravity-type pressure relief cover 4-2 and the pressure relief pipe 3 to enhance the sealing between the inlet of the gravity-type pressure relief cover 4-2 and the pressure relief pipe 3. The sealing gasket 4-3 can be fixed on the gravity-type pressure relief cover 4-2, or fixed on the inlet of the pressure relief pipe 3; The sum of the weight of the gravity-type pressure relief cover 4-2 and the weight of the float 4-1 is less than the sum of the buoyancy of the gravity-type pressure relief cover 4-2 after it is completely submerged and the buoyancy of the float 4-1 after it is completely submerged.

[0039] Generally, it is preferred that the sum of the gravity of the gravity-type pressure relief cover 4-2 and the gravity of the float 4-1 is two-thirds of the sum of the buoyancy of the gravity-type pressure relief cover 4-2 after it is completely submerged and the buoyancy of the float 4-1 after it is completely submerged.

[0040] In addition, the gravity-type pressure relief cover 4-2 can be a dome structure, the float 4-1 is a ring structure, the float 4-1 is fitted on the gravity-type pressure relief cover 4-2, and the pressure relief pipe 3 extends into the gravity-type pressure relief cover 4-2 so that the inlet of the pressure relief pipe 3 is in close contact with the gravity-type pressure relief cover 4-2. Example 2:

[0041] like Figure 3 , 4 As shown, the overpressure prevention sealing mechanism 4 is provided with a dome-shaped float limiting block 4-4 and a hollow metal float 4-5 bonded inside the float limiting block 4-4, as well as a magnetic ring 4-6 installed on the inlet of the pressure relief pipe 3. The inlet of the pressure relief pipe 3 extends into the float limiting block 4-4, and the magnetic ring 4-6 is in close contact with the hollow metal float 4-5. The sum of the magnetic attraction of the magnetic ring 4-6, the weight of the hollow metal float 4-5, and the weight of the float limiting block 4-4 is less than the sum of the buoyancy of the hollow metal float 4-5 after it is completely submerged in water and the buoyancy of the float limiting block 4-4 after it is completely submerged in water.

[0042] Generally, the sum of the magnetic attraction of the magnetic ring 4-6, the weight of the hollow metal float 4-5, and the weight of the float limiting block 4-4 is preferably two-thirds of the sum of the buoyancy of the hollow metal float 4-5 after it is completely submerged in water and the buoyancy of the float limiting block 4-4 after it is completely submerged in water.

Claims

1. A mechanical high-pressure chamber overpressure prevention device, characterized in that, Includes a pressure relief pile (2) installed at the bottom of the high-pressure chamber, which has a pressure relief groove (2a) communicating with the water storage area (1). The pressure relief tank (2a) is also equipped with a pressure relief pipe (3), and an overpressure prevention sealing mechanism (4) is installed at the inlet of the pressure relief pipe (3), and the pressure relief pipe (3) is also connected to the outside of the high pressure chamber.

2. The mechanical high-pressure chamber overpressure prevention device according to claim 1, characterized in that, The inlet of the pressure relief pipe (3) faces upward.

3. The mechanical high-pressure chamber overpressure prevention device according to claim 2, characterized in that, The outlet of the pressure relief pipe (3) is connected to a drainage system.

4. The mechanical high-pressure chamber overpressure prevention device according to claim 3, characterized in that, The height of the opening of the pressure relief tank (2a) is the highest water level line of the water storage area (1); The inlet of the pressure relief pipe (3) is higher than the bottom of the pressure relief tank (2a) and lower than the opening of the pressure relief tank (2a).

5. The mechanical high-pressure chamber overpressure prevention device according to claim 1, characterized in that, The overpressure prevention sealing mechanism (4) is equipped with a gravity-type pressure relief cover (4-2) and a float (4-1) fixed on the gravity-type pressure relief cover (4-2). The gravity-type pressure relief cover (4-2) is installed on the inlet of the pressure relief pipe (3), and a sealing gasket (4-3) is installed on the gravity-type pressure relief cover (4-2) or the inlet of the pressure relief pipe (3). The sealing gasket (4-3) is located between the gravity-type pressure relief cover (4-2) and the inlet of the pressure relief pipe (3); The sum of the gravity of the gravity-type pressure relief cover (4-2) and the gravity of the float (4-1) is less than the sum of the buoyancy of the gravity-type pressure relief cover (4-2) after it is completely submerged and the buoyancy of the float (4-1) after it is completely submerged.

6. The mechanical high-pressure chamber overpressure prevention device according to claim 5, characterized in that, The float (4-1) has a dome structure, the gravity-type pressure relief cover (4-2) is installed inside the float (4-1), and the pressure relief pipe (3) extends upward into the float (4-1) and is in close contact with the gravity-type pressure relief cover (4-2); Alternatively, the gravity-type pressure relief cover (4-2) can be a dome structure, the float (4-1) can be a ring structure, the float (4-1) can be fitted onto the gravity-type pressure relief cover (4-2), and the pressure relief pipe (3) can extend upward into the gravity-type pressure relief cover (4-2).

7. The mechanical high-pressure chamber overpressure prevention device according to claim 1, characterized in that, The overpressure protection sealing mechanism (4) is provided with a metal hollow float (4-5) and a magnetic ring (4-6), as well as a float limiting block (4-4) around the metal hollow float (4-5). The magnetic ring (4-6) is installed on the inlet of the pressure relief pipe (3), and after the pressure relief pipe (3) extends into the float limiting block (4-4), the hollow metal float (4-5) is in close contact with the magnetic ring (4-6); The sum of the magnetic attraction of the magnetic ring (4-6), the weight of the hollow metal float (4-5), and the weight of the float limiting block (4-4) is less than the sum of the buoyancy of the hollow metal float (4-5) after it is completely submerged in water and the buoyancy of the float limiting block (4-4) after it is completely submerged in water.

8. The mechanical high-pressure chamber overpressure prevention device according to claim 7, characterized in that, The float limiting block (4-4) has a dome structure, and the hollow metal float (4-5) is bonded inside the float limiting block (4-4).

9. The mechanical high-pressure chamber overpressure prevention device according to claim 1, characterized in that, A pressure relief cover plate (5) is placed on the opening of the pressure relief groove (2a). There is a gap between the pressure relief cover plate (5) and the pressure relief pile (2), and a flow channel is left between the pressure relief cover plate (5) and the opening of the pressure relief groove (2a).

10. The mechanical high-pressure chamber overpressure prevention device according to claim 1, characterized in that, The bottom of the high-pressure chamber has a drain outlet (1a), which is connected to a drainage system; A spring-loaded plug (6) is installed on the drain outlet (1a).

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