Reverse osmosis rupture disk device
The reverse osmosis rupture disc with controlled structural weaknesses addresses the issue of post-explosion blockage by ensuring controlled rupture and easy maintenance, using PVC or organic glass for durability.
Patent Information
- Application Number
- CN202422434131.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-10-09
AI Technical Summary
Existing reverse osmosis explosion discs are prone to blocking the discharge channel after blasting, affecting subsequent removal, and are complex in manufacturing and installation, and the materials are easily corroded.
Design a reverse osmosis explosion disc, including an annular weakening groove and a cross-weaking groove, and connect the flange by bolts, and is made of plexiglass or PVC, to control the blasting pressure and cracking method to avoid clogging.
It realizes convenient disassembly and assembly and regular maintenance of the blasting disk, reduces material costs, avoids blockage, and ensures long-term reliability and safety.
Smart Images
Figure CN223105379U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rupture discs, and particularly relates to a reverse osmosis rupture disc device. Background Art
[0002] The rupture disc device is an important safety device used in water treatment, petrochemical industry, pressure vessels, pipelines or other closed systems of chemical plants to prevent overpressure. Among the existing rupture devices that protect container equipment from being damaged when the pressure increases sharply, the reverse osmosis rupture disc is the most reliable one.
[0003] The most common problem with rupture discs is that they are easily blocked in the discharge channel after rupture, which not only affects the rupture effect but also is not conducive to the subsequent removal of the fallen rupture disc.
[0004] To solve the above problems, this case is thus generated. Content of the Utility Model
[0005] Therefore, in view of the above problems, the utility model provides a reverse osmosis rupture disc device for solving the problem of blockage of the discharge channel after the rupture disc falls off.
[0006] To solve the above technical problems, the solution adopted by the utility model is: a reverse osmosis rupture disc device, including a water inlet side flange, a water inlet side sealing gasket, a rupture disc, a water outlet side sealing gasket, and a water outlet side flange arranged in sequence along the water flow direction. Bolt through holes are provided on the water inlet side flange, the water inlet side sealing gasket, the rupture disc, the water outlet side sealing gasket, and the water outlet side flange, and bolts are passed through them to press and tightly connect them. An annular weakening groove is provided on the side of the rupture disc facing the water inlet side, the outer diameter of the annular weakening groove is not greater than the inner diameter of the external discharge channel, and the depth of the annular weakening groove does not exceed half of the thickness of the rupture disc.
[0007] Further improvement is: at least one annular crack arrest groove is provided on the side of the rupture disc facing the water inlet side, the outer diameter of the annular crack arrest groove is smaller than the inner diameter of the through holes of the water inlet side flange and the water outlet side flange, and the inner diameter of the annular weakening groove is greater than the outer diameter of the annular weakening groove.
[0008] Further improvement is: the depth of the annular crack arrest groove is the same as the depth of the annular weakening groove.
[0009] Further improvement is: the number of the annular crack arrest grooves is three.
[0010] Further improvement is: a cross weakening groove is provided inside the annular weakening groove.
[0011] Further improvement is: the four ends of the cross weakening groove are communicated with the annular weakening groove.
[0012] Further improvement: The groove depth of the cross-shaped weakening groove is the same as that of the annular weakening groove.
[0013] Further improvement: The material of the bursting disc is plexiglass or PVC.
[0014] By adopting the foregoing technical solutions, the beneficial effects of the present utility model are as follows:
[0015] 1. The bursting disc is connected to the inlet-side flange and the outlet-side flange through bolts, which is convenient for disassembly and maintenance, so as to perform regular maintenance, replace the bursting membrane and the sealing gasket, and achieve long-term use.
[0016] 2. The bursting disc is connected to the inlet-side flange and the outlet-side flange through the inlet-side sealing gasket and the outlet-side sealing gasket, and the requirements for the accuracy of the sealing surfaces of the inlet-side flange and the outlet-side flange are low, which is convenient for manufacturing and installation.
[0017] 3. The bursting disc creates a weak point by artificially manufacturing an annular weakening groove, and controls its bursting pressure by adjusting the depth of the annular weakening groove.
[0018] 4. Through different weakening groove structure designs, the cracking mode of the bursting disc during bursting is controlled, and the opening area size on the bursting disc and the area size of the detached bursting disc after bursting are ensured, so that the detached bursting disc will not block in the co-defense channel.
[0019] 5. The material of the bursting disc is plexiglass or PVC, which has low material cost, small processing difficulty, and the material is not easily corroded by environmental media, and is safe and reliable in the long term. Description of the Drawings
[0020] Figure 1 It is a schematic installation diagram of the present utility model on the outlet-side pipeline of the reverse osmosis device in the anti-seepage system.
[0021] Figure 2 It is a schematic structural diagram of a reverse osmosis bursting disc device according to an embodiment of the present utility model.
[0022] Figure 3 It is a schematic structural diagram of a reverse osmosis bursting disc according to Embodiment 1 of the present utility model.
[0023] Figure 4 It is a schematic cross-sectional structural diagram of a reverse osmosis bursting disc according to Embodiment 1 of the present utility model.
[0024] Figure 5 It is a schematic structural diagram of a reverse osmosis bursting disc according to Embodiment 2 of the present utility model.
[0025] Figure 6 It is a schematic cross-sectional structural diagram of a reverse osmosis bursting disc according to Embodiment 2 of the present utility model.
[0026] Figure 7 This is a schematic structural view of the reverse osmosis rupture disc in the third embodiment of the present utility model.
[0027] Figure 8 This is a schematic cross-sectional structural view of the reverse osmosis rupture disc in the third embodiment of the present utility model.
[0028] Figure 9 This is a schematic structural view of the reverse osmosis rupture disc in the fourth embodiment of the present utility model.
[0029] Figure 10 This is a schematic cross-sectional structural view of the rupture disc in the fourth embodiment of the present utility model. Detailed implementation manners
[0030] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0031] Refer to Figure 1 The reverse osmosis rupture disc device disclosed in the embodiment of the present utility model is usually installed in reverse osmosis systems such as sewage treatment and seawater desalination treatment. In the water treatment pipeline of the reverse osmosis system, the water to be treated is pressurized by a high-pressure pump and flows unidirectionally through the reverse osmosis equipment for water treatment. The treated water body flows out from the water outlet side of the reverse osmosis equipment. If the treated water does not meet the purification requirements, it is discharged to the trench through the unqualified water discharge valve. If the treated water meets the purification requirements, it is discharged to the water tank through the one-way check valve. When the pressure on the water outlet side of the reverse osmosis equipment is abnormal and reaches the bursting pressure value of the reverse osmosis rupture membrane, the reverse osmosis rupture disc of the reverse osmosis rupture disc device ruptures and opens, and the water outlet side of the reverse osmosis equipment is depressurized through the reverse osmosis rupture disc device and discharged to the trench, thereby protecting the reverse osmosis equipment.
[0032] Refer to Figure 2 A reverse osmosis rupture disc device includes a water inlet side flange 10, a water inlet side sealing gasket 11, a rupture disc 12, a water outlet side sealing gasket 13, and a water outlet side flange 14 arranged in sequence along the water flow direction. The water inlet side flange 10 and the water outlet side flange 14 are fixedly connected to the pipeline on the water outlet side of the reverse osmosis equipment. Bolt through holes 15 are provided on the water inlet side flange 10, the water inlet side sealing gasket 11, the rupture disc 12, the water outlet side sealing gasket 13, and the water outlet side flange 14. Bolts 16 are inserted into the bolt through holes 15. Washers 17 are sleeved on both ends of the bolts 16, and then nuts 18 are screwed. By tightening the nuts 18, the rupture disc 12 is hermetically pressed and clamped between the water inlet side sealing gasket 11 and the water outlet side sealing gasket 13 between the water inlet side flange 10 and the water outlet side flange 14. Embodiment 1:
[0033] Refer to Figure 3 and Figure 4, an annular weakening groove 19 is provided on one side of the rupture disk 12 facing the water inlet side. The outer diameter of the annular weakening groove 19 is not greater than the inner diameter of the external relief passage. The inner diameters of the passages 20 of the water inlet side flange 10 and the water outlet side flange 14 are generally the same as the inner diameter of the relief passage, that is, the outer diameter of the annular weakening groove 19 is not greater than the inner diameters of the passages 20 of the water inlet side flange 10 and the water outlet side flange 14, so as to prevent the rupture disk 12 falling off after bursting along the annular weakening groove 19 from blocking in the relief passage. The groove depth of the annular weakening groove 19 does not exceed half of the thickness of the rupture disk 12, and the bursting opening pressure of the rupture disk 12 is controlled by adjusting the groove depth of the annular weakening groove 19. The material of the rupture disk 12 is plexiglass or PVC. Embodiment 2:
[0034] Based on Embodiment 1, referring to Figure 5 and Figure 6 , at least one annular crack arrest groove 21 is provided on one side of the rupture disk 12 facing the water inlet side. Preferably, the number of the annular crack arrest grooves 21 is three. The annular crack arrest grooves 21 are beneficial to improving the problem of stress concentration in the working state of the annular weakening groove 19, dispersing the stress on the annular weakening groove 19, and preventing the rupture disk 12 from prematurely rupturing and failing under long-term stress. The outer diameter of the annular crack arrest groove 21 is smaller than the inner diameters of the passages of the water inlet side flange 10 and the water outlet side flange 14, and the inner diameter of the annular weakening groove 19 is larger than the outer diameter of the annular weakening groove 19. The groove depth of the annular crack arrest groove 21 is the same as the groove depth of the annular weakening groove 19. Embodiment 3:
[0035] Based on Embodiment 1 or Embodiment 2, referring to Figure 7 and Figure 8 , a cross weakening groove 22 is provided inside the annular weakening groove 19, and the groove depth of the cross weakening groove 22 is the same as the groove depth of the annular weakening groove 19.
[0036] The cross weakening groove 22 provided in the annular weakening groove 19 is beneficial to improving the problem of stress concentration in the working state of the weakening groove, and can cause the rupture disk 12 to rupture along the cross weakening groove 22 while rupturing along the annular weakening groove 19, giving the ruptured and falling rupture disk 12 space for shrinkage deformation under the bursting pressure, and further preventing the ruptured and falling rupture disk 12 from blocking in the relief passage. Embodiment 4:
[0037] Based on Embodiment 3, referring to Figure 9 and Figure 10 , the four ends of the cross weakening groove 22 are in communication with the annular weakening groove 19. It is beneficial to split the ruptured and falling rupture disk 12 into four pieces, prevent the ruptured and falling rupture disk 12 from blocking in the relief passage, and is beneficial to increasing the inner diameter of the annular weakening groove 19 to adjust the relief area after the rupture disk 12 is opened.
[0038] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and descriptions is only to illustrate the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.
Claims
1. A reverse osmosis rupture disc device, comprising a water inlet side flange, a water inlet side sealing gasket, a rupture disc, a water outlet side sealing gasket, and a water outlet side flange arranged in sequence along the water flow direction. Bolt through holes are provided on the water inlet side flange, the water inlet side sealing gasket, the rupture disc, the water outlet side sealing gasket, and the water outlet side flange, and bolts are inserted through the bolt through holes to tightly press and connect them. It is characterized in that: An annular weakening groove is formed on the side of the rupture disk facing the water inlet side. The outer diameter of the annular weakening groove is not greater than the inner diameter of the external relief passage, and the groove depth of the annular weakening groove does not exceed half of the thickness of the rupture disk.
2. The reverse osmosis rupture disk device according to claim 1, characterized in that: At least one annular crack arrest groove is formed on the side of the rupture disk facing the water inlet side. The outer diameter of the annular crack arrest groove is smaller than the inner diameter of the through holes of the water inlet side flange and the water outlet side flange, and the inner diameter of the annular weakening groove is greater than the outer diameter of the annular weakening groove.
3. The reverse osmosis rupture disk device according to claim 2, wherein: The groove depth of the annular crack arrest groove is the same as that of the annular weakening groove.
4. The reverse osmosis rupture disk device according to claim 2, characterized in that: The number of the annular crack arrest grooves is three.
5. A reverse osmosis rupture disk device according to any one of claims 1 and 2, characterized in that: A cross weakening groove is arranged inside the annular weakening groove.
6. The reverse osmosis rupture disc device according to claim 5, wherein: Four ends of the cross weakening groove are communicated with the annular weakening groove.
7. An anti - reverse osmosis bursting disc device according to claim 5, characterized in that: The groove depth of the cross weakening groove is the same as that of the annular weakening groove.
8. A reverse osmosis rupture disk device according to any one of claims 1-7, characterized in that: The rupture disk is made of plexiglass or PVC.