A pressure tank with safe pressure relief

Abstract

The utility model discloses a pressure tank of safe pressure relief, include: pressure tank main part, the top of its inner chamber is fixedly connected with the protection porous plate, the upper surface of protection porous plate is equidistantly welded with a plurality of reinforcing mesh rib plate, and the top of pressure tank main part is integrally formed with the locating installation cylinder, the pressure relief sleeve pipe is fixedly sleeved in the outer wall of locating installation cylinder, and the top is integrally formed with the pressure relief connecting pipe. The utility model discloses through the cooperation of pressure regulating spring, hard rubber sleeve and exhaust slide cylinder realizes the opening and closing, need not external power supply or electronic component, avoids the risk of electronic failure, is suitable for long -term stable operation, after overpressure relief, along with pressure drop, pressure regulating spring pushes slide cylinder and falls back and reseals, realizes automatic reset, need not manual dismounting, and the diffusion and rectification of pressure relief path are through the air outlet groove, the air vent, the protection net cylinder, reduce the jet impact force, reduce the harm to the surrounding equipment and personnel.

Description

Technical Field

[0001] This utility model relates to the field of pressure tank technology, and in particular to a pressure tank that can safely release pressure. Background Technology

[0002] In existing technologies, pressure tanks are used in closed-loop water circulation systems to balance water volume and pressure, preventing frequent opening of safety valves and frequent replenishment of water by automatic water replenishment valves.

[0003] A search revealed a Chinese patent application with patent number 202420101285.7, which discloses a pressure tank with a pressure relief function. Through the cooperation of the various components of the pressure relief structure, automatic pressure relief can be achieved while ensuring the sealing performance of the tank after pressure relief, preventing water leakage. Through the cooperation of the various components of the warning assembly, the pressure relief status can be monitored in real time. When pressure relief occurs, the warning light illuminates; when pressure relief stops, the warning light turns off. When pressure relief stops, the warning light illuminates again to indicate a sealing failure, requiring timely repair.

[0004] In actual use, this device mainly serves to monitor the pressure relief of the pressure tank. When the pressure tank is depressurized, the air and water inside the pressure tank are directly ejected through the safety relief valve. Due to the high pressure, the ejected air and water have a large kinetic energy, which may have an adverse impact on the surrounding environment. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a pressure tank that can safely release pressure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A pressure vessel capable of safe pressure relief includes: The pressure tank body has a protective perforated plate fixedly connected to the top of its inner cavity. Multiple reinforcing mesh ribs are welded at equal intervals on the upper surface of the protective perforated plate, and a positioning and mounting cylinder is integrally formed at the top of the pressure tank body. The pressure relief sleeve is fixedly sleeved on the outer wall of the positioning and mounting cylinder, and the top end is integrally formed with a pressure relief connecting pipe. Multiple exhaust holes are equidistantly opened in the middle of the outer wall of the pressure relief connecting pipe, and the top inner wall of the pressure relief sleeve is integrally formed with a sealing and reinforcing inner cylinder. The exhaust slide has multiple air outlet grooves at equal intervals on the top of its inner wall, corresponding to the exhaust holes. A pressure index column is fixedly connected to the top of the exhaust slide, and a hard rubber sleeve for sealing the pressure relief connection pipe is fixedly sleeved on the bottom of the outer wall of the pressure index column.

[0007] As a further improvement of this utility model: a protective mesh sleeve is fixedly sleeved on the outer wall of the pressure relief connecting pipe, and a pressure regulating sleeve is threadedly installed at the top end of the pressure relief connecting pipe.

[0008] As a further improvement of this utility model: a locking screw is threaded on the bottom of one side of the outer wall of the pressure regulating sleeve, and a compression inner cylinder is fixedly connected to the top inner wall of the pressure regulating sleeve.

[0009] As a further improvement of this utility model: a bottom pad is fixedly connected to the top of the hard rubber sleeve, and an adjusting spring is fixedly installed on the upper surface of the bottom pad.

[0010] As a further improvement of this utility model: a top pad is fixedly installed at the top of the pressure regulating spring, and the top pad is in contact with the extrusion inner cylinder.

[0011] As a further improvement of this utility model: the bottom end of the pressure tank body is integrally formed with an installation connection nozzle, and an installation connection pipe is fixedly installed at the bottom end of the installation connection nozzle.

[0012] As a further improvement of this utility model: an installation mesh cylinder is welded to the top of the installation connecting pipe, and an expansion water bladder is fixedly sleeved on the outer wall of the installation mesh cylinder.

[0013] As a further improvement of this utility model: both sides of the top of the pressure tank body are integrally formed with fixed seat tubes, and a pressure gauge and an air injection connection nozzle are respectively fixedly installed inside the two fixed seat tubes.

[0014] Compared with the prior art, this utility model provides a pressure tank that can safely release pressure, and has the following beneficial effects: 1. This pressure tank with safe pressure relief achieves opening and closing through the cooperation of a pressure regulating spring, a hard rubber sleeve, and an exhaust slide. It requires no external power supply or electronic components, avoiding the risks caused by electronic failure and is suitable for long-term stable operation. After overpressure relief, as the pressure drops, the pressure regulating spring pushes the slide back and reseals, achieving automatic reset without manual disassembly. The pressure relief path is diffused and rectified through the air outlet groove, exhaust hole, and protective mesh cylinder, reducing the impact force of the jet and minimizing damage to surrounding equipment and personnel.

[0015] 2. This pressure tank with safe pressure relief features a protective perforated plate and reinforcing mesh ribs, which do not affect ventilation and prevent the expansion bladder from over-expanding and touching the top of the tank, reducing the risk of structural damage. When the internal pressure increases, the rigid rubber sleeve is squeezed and fits more tightly against the pipe wall, forming a "self-reinforcing seal" to effectively prevent micro-leakage. The modular top assembly, threaded pressure regulating sleeve, and protective cover facilitate on-site disassembly, inspection, and replacement of vulnerable parts.

[0016] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the overall assembly of this utility model; Figure 2 This is a partial cross-sectional view of the overall assembly of this utility model. Figure 3 This utility model Figure 2 A magnified schematic diagram of the local structure at point A; Figure 4 This utility model Figure 3 A magnified schematic diagram of the structure at point B in the middle.

[0018] In the diagram: 1. Pressure tank body; 2. Installation connector; 3. Installation connector; 4. Pressure relief sleeve; 5. Pressure relief connector; 6. Protective mesh sleeve; 7. Pressure regulating sleeve; 8. Installation mesh sleeve; 9. Expansion water bladder; 10. Protective perforated plate; 11. Reinforcing mesh rib; 12. Pressure gauge; 13. Injection connector; 14. Protective cover; 15. Positioning installation sleeve; 16. Sealing reinforced inner cylinder; 17. Bearing connection frame; 18. Vent hole; 19. Vent slide; 20. Vent groove; 21. Pressure index column; 22. Hard rubber sleeve; 23. Bottom pad; 24. Pressure regulating spring; 25. Top pad; 26. Squeezing inner cylinder; 27. Locking screw. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] A pressure tank that can safely release pressure, such as Figures 1 to 4 As shown, it includes a pressure tank structure and a pressure relief structure. The main body of the pressure tank structure is set as pressure tank body 1, and the pressure relief structure is installed on the top of pressure tank body 1 to safely relieve pressure in the pressure tank structure.

[0021] The bottom end of the pressure tank body 1 is integrally formed with an installation connection nozzle 2. An installation connection pipe 3 is fixedly installed at the bottom end of the installation connection nozzle 2. A connection flange 1 is welded to the bottom end of the installation connection nozzle 2. Both ends of the installation connection pipe 3 are welded with connection flange 2.

[0022] The top of the mounting connecting pipe 3 is welded with a mounting mesh tube 8. An expansion water bladder 9 is fixedly sleeved on the outer wall of the mounting mesh tube 8. The expansion water bladder 9 passes through the mounting connecting nozzle 2 and is installed inside the pressure tank body 1.

[0023] Reference Figure 2 The installation mesh tube 8 is inserted into the installation connection nozzle 2, and the outer wall of the bottom of the expansion water bladder 9 is attached and bonded to the inner wall of the installation connection nozzle 2; a sealing rubber ring 1 is installed between the top connecting flange 2 and the connecting flange 1 of the installation connection pipe 3 to fully ensure the stability of the internal pressure of the pressure tank body 1.

[0024] A protective perforated plate 10 is fixedly connected to the top of the inner cavity of the pressure tank body 1. Multiple reinforcing mesh ribs 11 are welded at equal intervals on the upper surface of the protective perforated plate 10. The protective perforated plate 10 and the reinforcing mesh ribs 11 will not affect the air pressure inside the pressure tank body 1 and can prevent the expansion water bladder 9 from over-expanding and fitting against the top inner wall of the pressure tank body 1.

[0025] The top of the pressure tank body 1 is integrally formed with a positioning mounting cylinder 15, and both sides of the top of the pressure tank body 1 are integrally formed with fixed seat tubes. The pressure gauge 12 and the gas injection connection nozzle 13 are respectively fixedly installed inside the two fixed seat tubes. The connection between the pressure gauge 12 and the gas injection connection nozzle 13 and the fixed seat tube is sealed. The external thread of the gas injection connection nozzle 13 is fitted with a protective cover 14, and a protective rubber sleeve is fixedly installed inside the protective cover 14 to protect the gas injection connection nozzle 13.

[0026] The main body of the pressure relief structure is a pressure relief sleeve 4, which is fixedly sleeved on the outer wall of the positioning and mounting cylinder 15. The bottom end is integrally formed with a connecting flange 3, which is fixedly installed on the top of the pressure tank body 1. The bottom end of the connecting flange 3 is fitted with a sealing rubber ring 2 that is sleeved on the outer wall of the positioning and mounting cylinder 15.

[0027] The pressure relief sleeve 4 has an integrally formed pressure relief connecting pipe 5 at its top end. Multiple vent holes 18 are equidistantly opened in the middle of the outer wall of the pressure relief connecting pipe 5. A protective mesh cylinder 6 is sleeved in the middle of the outer wall of the pressure relief connecting pipe 5. The protective mesh cylinder 6 is used to protect the vent holes 18 and prevent external dust from entering the interior of the pressure relief connecting pipe 5.

[0028] The inner wall of the top end of the pressure relief sleeve 4 is integrally formed with a sealing and reinforcing inner cylinder 16. The inner diameter of the sealing and reinforcing inner cylinder 16 is the same as the inner diameter of the pressure relief connecting pipe 5, and it is inserted into the positioning and mounting cylinder 15. The outer diameter of the sealing and reinforcing inner cylinder 16 is the same as the inner diameter of the positioning and mounting cylinder 15. The two are set to be overfitted. A sealing rubber ring 3 is sleeved on the top of the outer wall of the sealing and reinforcing inner cylinder 16. The sealing rubber ring 3 is attached to the top end of the positioning and mounting cylinder 15.

[0029] The bottom of the inner cavity of the sealed and reinforced inner cylinder 16 is welded with a bearing connecting frame 17, and the top of the bearing connecting frame 17 is provided with an exhaust slide 19. The exhaust slide 19 is slidably installed inside the sealed and reinforced inner cylinder 16, and the two are configured to be overfitted. The outer wall of the exhaust slide 19 is integrally formed with multiple limiting bosses at equal intervals, and the inner wall of the sealed and reinforced inner cylinder 16 is provided with multiple limiting grooves at equal intervals. The limiting bosses are slidably installed inside the limiting grooves to prevent the exhaust slide 19 from rotating inside the sealed and reinforced inner cylinder 16.

[0030] The top of the inner wall of the exhaust duct 19 is provided with multiple air outlet grooves 20 corresponding to the exhaust holes 18. The length of the air outlet grooves 20 is set to three to five times the length of the exhaust holes 18 to fully ensure the discharge effect of overpressure gas and water.

[0031] The top of the exhaust sluice 19 is fixedly connected to a pressure index column 21, and a hard rubber sleeve 22 for sealing the pressure relief connection pipe 5 is fixedly sleeved on the bottom of the outer wall of the pressure index column 21; the top of the hard rubber sleeve 22 is fixedly connected to a bottom pad 23, and a pressure regulating spring 24 is fixedly installed on the upper surface of the bottom pad 23, and a top pad 25 is fixedly installed on the top of the pressure regulating spring 24.

[0032] A protective mesh sleeve 6 is fixedly sleeved on the outer wall of the pressure relief connecting pipe 5, and a pressure regulating sleeve 7 is threaded on the top end of the pressure relief connecting pipe 5. A locking screw 27 is threaded on the bottom of the outer wall of one side of the pressure regulating sleeve 7 to lock the relative position of the pressure regulating sleeve 7 and the pressure relief connecting pipe 5. A compression inner cylinder 26 is fixedly connected to the inner wall of the top end of the pressure regulating sleeve 7, and the bottom end of the compression inner cylinder 26 presses against the upper surface of the top pad 25.

[0033] The outer diameter of the hard rubber sleeve 22 is the same as the outer diameter of the exhaust slide 19. Under the elastic force of the pressure regulating spring 24, it is slightly compressed, and the outer wall is in contact with the inner wall of the pressure relief connection pipe 5, thus achieving a seal on the pressure relief connection pipe 5. That is, the greater the pressure inside the pressure tank body 1, the better the sealing effect.

[0034] The top of the pressure index column 21 passes through the pressure regulating sleeve 7 and extends upward. The pressure index scale on its surface increases sequentially from top to bottom. That is, the greater the upward extension of the pressure index column 21, the greater the air pressure inside the pressure tank body 1.

[0035] Meanwhile, before the pressure tank body 1 is filled with air, rotate the pressure regulating sleeve 7 so that the pressure index column 21 is exposed. The larger the pressure index, the higher the preset air pressure inside the pressure tank body 1. For example, the preset air pressure inside the pressure tank body 1 is [0.1MPa, 1.6MPa]. When the top surface of the pressure regulating sleeve 7 is aligned with the 0 mark of the pressure index column 21, it means that the maximum air pressure inside the pressure tank body 1 is 0.1MPa. If it exceeds 0.1MPa, it will be depressurized.

[0036] Under the force of the pressure regulating spring 24 and the high pressure inside the pressure tank body 1, the rigid rubber sleeve 22 will deform. However, due to limitations in its material and the inner diameter of the pressure relief pipe 5, the deformation of the rigid rubber sleeve 22 is relatively small, indicating that there is an upper limit to the static friction between the rigid rubber sleeve 22 and the inner wall of the pressure relief pipe 5. When the air pressure inside the pressure tank body 1 exceeds the preset upper limit, that is, when the thrust generated by the air pressure on the exhaust slide 19 is greater than the sum of the force of the pressure regulating spring 24 and the static friction between the rigid rubber sleeve 22 and the inner wall of the pressure relief pipe 5, the rigid rubber sleeve 22... The static friction between the hard rubber sleeve 22 and the inner wall of the pressure relief pipe 5 will be converted into sliding friction, causing the hard rubber sleeve 22 to slide slowly upward until the exhaust port 18 corresponds to the air outlet groove 20, and the airflow inside the pressure tank body 1 is discharged. When the air pressure inside the pressure tank body 1 drops to a certain value, the deformation of the hard rubber sleeve 22 becomes smaller, and the elastic force of the pressure regulating spring 24 is greater than the sum of the static friction between the hard rubber sleeve 22 and the inner wall of the pressure relief pipe 5 and the thrust generated by the air pressure on the exhaust slide 19. The pressure regulating spring 24 pushes the hard rubber sleeve 22 and the exhaust slide 19 down, stopping the pressure relief.

[0037] Working principle: Refer to Figures 1 to 4 Assemble the device as shown in the figure; Before use, install the device on the designated pipeline, and then inject compressed air into the pressure tank body 1 through the air injection connector 13 until the air pressure inside the pressure tank body 1 reaches the specified value (observed by the pressure gauge 12). During use, if the air pressure inside the pressure tank body 1 exceeds the pressure limit, depressurize in the manner described above. During the depressurization process, the airflow or gas-water (due to water leakage caused by the aging of the expansion water bladder 9) passes through the protective perforated plate 10 and the reinforcing mesh rib 11, enters the exhaust slide 19, and pushes the exhaust slide 19 upward. Finally, it is discharged in multiple directions through the air outlet groove 20 and the exhaust port 18 to avoid the concentration of high-pressure airflow or gas-water and reduce its impact force. At the same time, the protective mesh cylinder 6 further reduces the airflow or the impact force of the airflow, ensuring the safety of depressurization.

[0038] 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 pressure tank with safe pressure relief capability, characterized in that, include: The pressure tank body (1) has a protective perforated plate (10) fixedly connected to the top of its inner cavity. Multiple reinforcing mesh ribs (11) are welded at equal intervals on the upper surface of the protective perforated plate (10), and a positioning and mounting cylinder (15) is integrally formed at the top of the pressure tank body (1). The pressure relief sleeve (4) is fixedly sleeved on the outer wall of the positioning installation cylinder (15), and the top end is integrally formed with a pressure relief connecting pipe (5). Multiple exhaust holes (18) are equidistantly opened in the middle of the outer wall of the pressure relief connecting pipe (5), and the top inner wall of the pressure relief sleeve (4) is integrally formed with a sealing and reinforcing inner cylinder (16). The exhaust slide (19) has multiple air outlet grooves (20) at equal intervals on the top of its inner wall, corresponding to the exhaust holes (18). The top of the exhaust slide (19) is fixedly connected to a pressure index column (21), and the bottom of the outer wall of the pressure index column (21) is fixedly fitted with a hard rubber sleeve (22) for sealing the pressure relief connection pipe (5).

2. The pressure tank with safe pressure relief according to claim 1, characterized in that: The outer wall of the pressure relief connecting pipe (5) is fixedly sleeved with a protective mesh cylinder (6), and the top end of the pressure relief connecting pipe (5) is threaded with a pressure regulating sleeve (7).

3. A pressure tank with safe pressure relief according to claim 2, characterized in that: A locking screw (27) is threaded on the bottom of one side of the outer wall of the pressure regulating sleeve (7), and a compression inner cylinder (26) is fixedly connected to the top inner wall of the pressure regulating sleeve (7).

4. A pressure tank with safe pressure relief according to claim 1, characterized in that: The top end of the hard rubber sleeve (22) is fixedly connected to a bottom pad (23), and a pressure adjusting spring (24) is fixedly installed on the upper surface of the bottom pad (23).

5. A pressure tank with safe pressure relief according to claim 4, characterized in that: The top of the pressure regulating spring (24) is fixedly installed with a top pad (25), which is in contact with the extrusion inner cylinder (26).

6. A pressure tank with safe pressure relief according to claim 1, characterized in that: The bottom end of the pressure tank body (1) is integrally formed with an installation connection nozzle (2), and an installation connection pipe (3) is fixedly installed at the bottom end of the installation connection nozzle (2).

7. A pressure tank with safe pressure relief according to claim 6, characterized in that: The top end of the installation connecting pipe (3) is welded with an installation mesh cylinder (8), and an expansion water bladder (9) is fixedly sleeved on the outer wall of the installation mesh cylinder (8).

8. A pressure tank with safe pressure relief according to claim 1, characterized in that: The pressure tank body (1) has two integrally formed fixed seat tubes on both sides of the top end, and a pressure gauge (12) and an air injection connector (13) are respectively fixedly installed inside the two fixed seat tubes.

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