A leakage protection device for pressure pipeline
By designing a leakage protection device for pressure pipelines, the automatic upward movement of the blocking ball is used to solve the safety hazards of medium leakage during the maintenance of pressure pipelines, efficient and safe leakage blocking is achieved, and the cost of use is reduced.
Patent Information
- Application Number
- CN202420671328.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-02
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-04-02
AI Technical Summary
During the maintenance and maintenance of pressure pipelines, due to the lack of valve closure or pipeline corrosion, the sudden leakage of the media is caused, forming safety hazards.
A leakage protection device is designed, including a first mounting member, a second mounting member and a blocking ball. Through a detachable connection and a threaded connection, the blocking ball is arranged at the lower part of the first channel, so that it can automatically move upward and block the channel when the medium leaks, blocking the leakage of the medium.
The device can automatically, timely and thoroughly block the leakage of high-temperature and high-pressure media, prevent the amplification of accidents, protect personal safety, improve production safety, and can recover and reuse on its own, with a low cost of use.
Smart Images
Figure CN222746682U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of leakage protection devices, and in particular to a leakage protection device for a pressure pipeline. Background Art
[0002] Pressure is one of the important parameters in the industrial production process. In order to ensure the normal operation of production, pressure must be monitored and controlled. For example, in the operation of the boiler, pressure is an important production parameter of the boiler, especially steam pressure and feed water pressure. When the instrument measuring equipment such as the boiler's drum pressure and feed water flow needs to be replaced due to damage, the boiler body cannot be shut down and must be overhauled under pressure. The instrument measuring equipment generally has a primary valve and a secondary valve at its front end to cut off the medium to facilitate the overhaul and maintenance of the instrument measuring equipment. However, high-temperature and high-pressure steam has strict requirements on valves. The valve is in a working environment where high temperature, high pressure and normal temperature alternate for a long time. It is very likely that the valve sealing surface is damaged, causing the valve to not close tightly. When the staff replaces the instrument measuring equipment, the medium suddenly leaks due to the lax valve closure, posing a safety hazard. At the same time, due to the daily corrosion of the pressure pipeline, manufacturing defects and damage to the instrument measuring equipment itself, it will cause the leakage of steam or water and other media, posing a safety hazard of equipment accidents and personal accidents. Summary of the invention
[0003] The purpose of the embodiment of the present application is to provide a leakage protection device for a pressure pipeline, which can solve the technical problem that when the staff replaces the instrument measuring equipment, the sudden leakage of the medium is caused by the valve not being closed tightly, forming a safety hazard. At the same time, due to the daily corrosion of the pressure pipeline, manufacturing defects and damage to the instrument measuring equipment itself, etc., it will cause the leakage of media such as steam or water, forming safety hazards of equipment accidents and personal accidents.
[0004] An embodiment of the present application provides a leakage protection device for a pressure pipeline, comprising a first mounting member, a second mounting member and a blocking ball, wherein the second mounting member is connected to the lower end of the first mounting member, a first channel is provided inside the first mounting member, a second channel is provided inside the second mounting member, the first channel is connected to the second channel, the blocking ball is movably provided in the lower part of the first channel, and the width of the upper part of the first channel and the width of the second channel are both smaller than the diameter of the blocking ball.
[0005] Wherein, the middle portion of the first channel is arranged in an arc shape.
[0006] Wherein, the first mounting member and the second mounting member are detachably connected.
[0007] Wherein, the first mounting member and the second mounting member are threadedly connected.
[0008] Wherein, a gasket is arranged between the first mounting member and the second mounting member.
[0009] Wherein, the first mounting member and the second mounting member are fixedly connected.
[0010] Wherein, the first mounting member and the second mounting member are fixed by welding.
[0011] Wherein, a connecting groove is provided at the upper end of the first mounting member, and a connecting head is fixedly provided at the lower end of the second mounting member.
[0012] Wherein, an octagonal nut is fixedly provided on the outside of the first mounting member and the outside of the second mounting member.
[0013] Wherein, the first mounting piece, the second mounting piece, the blocking ball and the connecting head are all made of stainless steel.
[0014] Beneficial effects of the utility model:
[0015] The utility model provides a leakage protection device for a pressure pipeline, which can provide protection for workers when they inspect and maintain instrument measuring equipment under pressure, and can also provide protection for medium leakage in the pressure pipeline or instrument measuring equipment during operation, and automatically, timely and thoroughly block the sudden leakage of high-temperature and high-pressure dangerous medium to prevent the expansion of accidents, protect personal safety and improve production safety; moreover, the device can be restored and reused by itself, and the use cost is low. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.
[0017] Figure 1 This is a schematic diagram of the overall cross-sectional structure in Example 1 of the present application;
[0018] Figure 2 is a schematic cross-sectional structural diagram of the first mounting member in the first embodiment of the present application;
[0019] Figure 3 is a schematic cross-sectional structural diagram of the second mounting member in the first embodiment of the present application;
[0020] Figure 4 This is a schematic diagram of the overall structure of Example 1 of the present application;
[0021] Figure 5This is a schematic diagram of the overall cross-sectional structure in Example 2 of the present application.
[0022] The reference numerals are:
[0023] 1. first mounting member; 11. first channel; 12. connecting groove;
[0024] 2. second mounting member; 21. second channel; 22. connector;
[0025] 3. Block the ball;
[0026] 4. Washer. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.
[0028] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.
[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0030] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0031] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0032] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0033] Embodiment 1
[0034] like Figures 1 to 4 As shown, an embodiment of the present application provides a leakage protection device for a pressure pipeline, including a first mounting member 1, a second mounting member 2 and a blocking ball 3. The second mounting member 2 is connected to the lower end of the first mounting member 1. A first channel 11 is arranged inside the first mounting member 1, and a second channel 21 is arranged inside the second mounting member 2. The first channel 11 is connected to the second channel 21. The blocking ball 3 is movably arranged in the lower part of the first channel 11, and the width of the upper part of the first channel 11 and the width of the second channel 21 are both smaller than the diameter of the blocking ball 3.
[0035] When in use, the device is installed vertically, the second mounting member 2 is installed at the original instrument measuring device installation position at the rear end of the secondary valve, and the first mounting member 1 is connected to the instrument measuring device for installation; when the equipment is operating normally, the medium in the pressure pipeline is in a high static pressure state, the medium pressure is very high but does not flow, and the blocking ball 3 falls to the bottom of the first channel 11 due to its own weight. At this time, the pressure change of the medium can be transmitted in time and does not affect the normal measurement work of the instrument measuring device; when the instrument measuring device needs to be disassembled, the primary valve and the secondary valve on the pressure pipeline need to be closed first. If the primary valve and the secondary valve are not closed tightly due to damage, When the instrument measuring equipment continues to be disassembled, the medium will rush into the first channel 11 from the second channel 21. At this time, the blocking ball 3 will be driven by the upward flowing medium and move upward quickly. The blocking ball 3 moves to the middle of the first channel 11 and blocks the upper part of the first channel 11. In addition, the pressure difference between the high pressure applied by the medium at the bottom of the blocking ball 3 and the normal pressure on the upper part of the blocking ball 3 is tightly pressed on the middle of the first channel 11, completely blocking the leakage of the high-temperature and high-pressure medium; when the instrument measuring equipment is overhauled and maintained, the upper and lower pressure difference of the blocking ball 3 is zero, and the blocking ball 3 falls to the bottom of the first channel 11 due to its own weight, and the pressure pipeline resumes normal operation.
[0036] The device can provide protection for workers when they inspect and maintain instrument measuring equipment under pressure, and can also provide protection for media leakage in pressure pipelines or instrument measuring equipment during operation. It can automatically, promptly and thoroughly block the sudden leakage of high-temperature and high-pressure dangerous media to prevent the accident from expanding, protect personal safety and improve production safety. Moreover, the device can recover and be reused by itself, and the cost of use is low.
[0037] Since the length of the first channel 11 is short, the moving distance of the blocking ball 3 is also short, and the movement speed of the high-temperature and high-pressure medium is large. For example, when 12MPa superheated steam flows through a pipe with DN<100, the flow rate can reach 40m / s, and the moving time of the blocking ball 3 can reach milliseconds. Therefore, the leakage can be blocked in time to effectively protect personal safety.
[0038] When the instrument measuring device is overhauled and maintained, the device can be tapped to generate vibration to help the blocking ball 3 to reset.
[0039] like Figures 1 to 4 As shown, in this embodiment, the middle portion of the first channel 11 is arranged in an arc shape; the middle portion of the first channel 11 arranged in an arc shape can guide the blocking ball 3 to facilitate the blocking ball 3 to block the upper portion of the first channel 11.
[0040] like Figures 1 to 4 As shown, in this embodiment, the first mounting member 1 and the second mounting member 2 are detachably connected; the staff can disassemble and separate the first mounting member 1 and the second mounting member 2 to facilitate cleaning or replacement of the first mounting member 1 and the second mounting member 2.
[0041] like Figures 1 to 4 As shown, in this embodiment, the first mounting member 1 and the second mounting member 2 are threadedly connected; the staff can rotate and loosen the first mounting member 1 and the second mounting member 2 to separate them, so as to facilitate cleaning or replacement of the first mounting member 1 and the second mounting member 2.
[0042] like Figures 1 to 4 As shown, in this embodiment, a washer 4 is provided between the first mounting member 1 and the second mounting member 2; the washer 4 is used to reduce friction and prevent loosening, thereby improving connection stability.
[0043] like Figures 1 to 4 As shown, in this embodiment, a connecting groove 12 is provided at the upper end of the first mounting member 1, and a connecting head 22 is fixedly provided at the lower end of the second mounting member 2; the first mounting member 1 can be connected and installed with the instrument measuring equipment through the connecting groove 12, and the second mounting member 2 can be installed at the original instrument measuring equipment installation position at the rear end of the secondary valve through the connecting head 22.
[0044] like Figures 1 to 4As shown, in this embodiment, octagonal nuts are fixedly provided on the outside of the first mounting member 1 and the outside of the second mounting member 2; the octagonal nuts facilitate the staff to hold or rotate the first mounting member 1 and the second mounting member 2, thereby improving the convenience of use.
[0045] In this embodiment, the first mounting member 1, the second mounting member 2, the blocking ball 3, and the connector 22 are all made of stainless steel; stainless steel is wear-resistant and corrosion-resistant, thereby improving the durability of the device and extending its service life.
[0046] Working principle: When the leakage protection device for pressure pipes provided by the present application is used, the device is installed vertically, the second mounting member 2 is installed at the original instrument measuring device installation position at the rear end of the secondary valve, and the first mounting member 1 is connected and installed with the instrument measuring device; when the equipment is operating normally, the medium in the pressure pipe is in a high static pressure state, the medium pressure is very high but does not flow, and the blocking ball 3 falls to the bottom of the first channel 11 due to its own weight. At this time, the pressure change of the medium can be transmitted in time without affecting the normal measurement work of the instrument measuring device; when the instrument measuring device needs to be disassembled, the primary valve and the secondary valve on the pressure pipe need to be closed first. If the primary valve and the secondary valve are Due to the damage that causes the closure to be loose, when the instrument measuring equipment continues to be disassembled, the medium will rush into the first channel 11 from the second channel 21. At this time, the blocking ball 3 will be driven by the upward flowing medium and move upward quickly. The blocking ball 3 moves up to the middle of the first channel 11 and blocks the upper part of the first channel 11. In addition, the pressure difference between the high pressure applied by the medium at the bottom of the blocking ball 3 and the normal pressure on the upper part of the blocking ball 3 is tightly pressed on the middle of the first channel 11, completely blocking the leakage of the high-temperature and high-pressure medium; when the instrument measuring equipment is overhauled and maintained, the upper and lower pressure difference of the blocking ball 3 is zero, and the blocking ball 3 falls to the bottom of the first channel 11 due to its own weight, and the pressure pipeline resumes normal operation.
[0047] Embodiment 2
[0048] like Figure 5 As shown, in this embodiment, the first mounting member 1 and the second mounting member 2 are fixedly connected; the first mounting member 1 and the second mounting member 2 are firmly connected to improve the stability in use.
[0049] like Figure 5 As shown, in this embodiment, the first mounting member 1 and the second mounting member 2 are fixed by welding; the first mounting member 1 and the second mounting member 2 are firmly connected to improve the stability in use.
[0050] The rest is the same as that of the first embodiment and will not be described again here.
[0051] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A leakage protection device for a pressure pipeline, characterized in that: The invention comprises a first mounting member (1), a second mounting member (2) and a blocking ball (3); the second mounting member (2) is connected to the lower end of the first mounting member (1); a first channel (11) is arranged inside the first mounting member (1); a second channel (21) is arranged inside the second mounting member (2); the first channel (11) is connected to the second channel (21); the blocking ball (3) is movably arranged in the lower part of the first channel (11); the width of the upper part of the first channel (11) and the width of the second channel (21) are both smaller than the diameter of the blocking ball (3).
2. The leakage protection device for a pressure pipeline according to claim 1, characterized in that: The middle part of the first channel (11) is arranged in an arc shape.
3. The leakage protection device for a pressure pipeline according to claim 1, characterized in that: The first mounting member (1) and the second mounting member (2) are detachably connected.
4. The leakage protection device for a pressure pipeline according to claim 3, characterized in that: The first mounting member (1) and the second mounting member (2) are threadedly connected.
5. The leakage protection device for a pressure pipeline according to claim 3, characterized in that: A gasket (4) is provided between the first mounting member (1) and the second mounting member (2).
6. The leakage protection device for a pressure pipeline according to claim 1, characterized in that: The first mounting member (1) and the second mounting member (2) are fixedly connected.
7. The leakage protection device for a pressure pipeline according to claim 6, characterized in that: The first mounting member (1) and the second mounting member (2) are fixed by welding.
8. The leakage protection device for a pressure pipeline according to claim 1, characterized in that: The upper end of the first mounting member (1) is provided with a connection groove (12), and the lower end of the second mounting member (2) is fixedly provided with a connection head (22).
9. The leakage protection device for a pressure pipeline according to claim 1, characterized in that: The outside of the first mounting member (1) and the outside of the second mounting member (2) are both fixedly provided with octagonal nuts.
10. The leakage protection device for a pressure pipeline according to claim 8, characterized in that: The first mounting piece (1), the second mounting piece (2), the blocking ball (3) and the connecting head (22) are all made of stainless steel.