Water supply mother pipe protection assembly
By designing a fixing buckle and a locking assembly for the support arm on the feedwater main pipe, the structural damage caused by vibration of the feedwater main pipe in the turbine plant was solved, the stability of the flange connection and elbow was enhanced, and the stable operation of the system was ensured.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-14
- Publication Date
- 2026-03-10
AI Technical Summary
Vibration and impact can easily cause structural deformation and loosening at flange connections and elbows in the steam turbine plant's feedwater main pipe, affecting the normal operation of the system.
Design a water supply main pipe protection component, which adopts a fixed buckle and support arm structure. The locking component forms additional fixation and support on the outer wall of the pipe, locking the flange connection and elbow, thereby enhancing the structural stability.
It effectively prevents structural deformation and loosening at flange connections and elbows, ensuring the normal operation of the water supply system.
Smart Images

Figure CN223984958U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline component technology, specifically to a water supply main pipe protection component. Background Technology
[0002] The feedwater system within the turbine building is a crucial component ensuring the normal operation of the entire thermal cycle. The feedwater header in this system is responsible for delivering pressurized feedwater, boosted by a high-pressure feedwater pump, to the boiler or other heat exchange equipment. However, in actual operation, the feedwater header faces problems caused by various factors. For example, the detachment of internal components from the deaerator (such as water spray plates, screen plates, and baffles) can cause impact and vibration. This impact may be transmitted to the feedwater header through the connection structure, causing vibration. Furthermore, if a spray head detaches from the deaerator, it can form a water column, causing rapid condensation of the induced draft steam and resulting in water hammer vibration. This vibration may also be transmitted to the feedwater pipes through the pipe connections. Since flange connections and elbows are structurally weak points, these areas are prone to structural deformation and loosening of connections when vibration occurs, thus affecting the normal operation of the feedwater system.
[0003] In view of this, a design or technical improvement is proposed to solve the above problems.
[0004] The above content is only used to help understand the technical solution of this utility model and does not represent an admission that the above content is the closest prior art. Utility Model Content
[0005] The purpose of this invention is to address the above-mentioned shortcomings and provide a water supply main pipe protection component.
[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0007] The water supply main pipe protection assembly includes two sets of fixing rings for snapping and fixing to the outer wall of the pipe. The upper end of the fixing rings is provided with two sets of support arms that are hinged to each other. The support arms are provided with locking components for locking the relative angle between them.
[0008] Furthermore, the fixing buckle includes two sets of semi-rings that are hinged to each other, wherein the end of the semi-ring away from the hinge point is provided with a first ear plate that is locked by a bolt.
[0009] Furthermore, the locking assembly includes a fixed block disposed on one set of the support arms, a rotating strut rotatably disposed on the fixed block, and a support block disposed on another set of support arms; the support block has a slot for engaging the rotating strut, and the end of the rotating strut is provided with a connecting plate that is locked to the support block by bolts.
[0010] Furthermore, the locking assembly also includes two sets of connecting blocks respectively disposed on the two sets of support arms and in a mutually abutting and opposing state when the two sets of support arms rotate to an angle of 180 degrees; the connecting blocks are locked together by bolts.
[0011] Furthermore, a connecting arm is provided between the fixing buckle and the support arm, and the half rings are hinged together by a movable shaft, wherein one end of the connecting arm is fixed on the movable shaft and the other end is hinged to the support arm.
[0012] Furthermore, the semi-ring is also provided with a second ear plate, which is equipped with a threaded rod that movably engages with it and a nut threaded onto the threaded rod, for locking the relative position between the two sets of fixing rings.
[0013] Furthermore, a rubber pad is also provided on the inner arc side of the semi-ring.
[0014] Compared with the prior art, the beneficial effects of this solution are: by setting two sets of fixing rings locked on the outer wall of the pipe, and setting mutually hinged support arms and locking components for locking the support arms on the fixing rings, the flange connection and elbow of the pipe can be locked and reinforced, forming additional reinforcement and support for the pipe structure, and protecting the elbow and flange connection nodes from being affected when the pipe is subjected to vibration. Attached Figure Description
[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:
[0016] Figure 1 This is a frontal perspective view of an embodiment of the present utility model;
[0017] Figure 2 This is a schematic diagram of the state of the present invention at the pipe bend;
[0018] Figure 3 This is a schematic diagram of the state of a pipe flange connection according to an embodiment of the present invention;
[0019] Figure 4 This is a schematic diagram of the combination of the support arm and the supporting block in an embodiment of this utility model;
[0020] Figure 5 This is a schematic diagram of the combination of the support arm and the fixing block in an embodiment of this utility model;
[0021] Figure 6 This is a structural disassembly diagram of the fixing buckle in an embodiment of this utility model.
[0022] In the diagram: 1. Fixing buckle; 11. Support arm; 12. Half ring; 13. First ear plate; 2. Fixing block; 21. Rotating support rod; 22. Supporting block; 23. Slot; 24. Connecting plate; 25. Connecting block; 3. Connecting arm; 31. Movable shaft; 4. Second ear plate; 41. Threaded rod; 42. Nut; 5. Rubber pad. Detailed Implementation
[0023] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0024] like Figure 1-6 The water supply main pipe protection assembly shown includes two sets of fixing rings 1 for snapping and fixing to the outer wall of the pipe. The upper end of the fixing ring 1 is provided with two sets of support arms 11 that are hinged to each other. The support arms 11 are provided with locking components for locking the relative angle between them. By rotating and adjusting the relative angle between the two sets of support arms 11, the two sets of fixing rings 1 can be locked onto the two sets of pipes at the flange connection, or locked onto the pipe parts on both sides of the pipe bend. Then, the locking components are used to lock the angle of the support arms 11, thereby forming an additional fixed connection structure or diagonal bracing structure on the outside of the pipe, which enhances the overall stability of the pipe and ensures that the reinforced part will not be damaged by pipe vibration.
[0025] In one embodiment, the fixing ring 1 includes two sets of semi-rings 12 that are hinged to each other. The end of the semi-ring 12 away from the hinge point is provided with a first ear plate 13 that is locked by bolts. A rubber pad 5 is also provided on the inner arc side of the semi-ring 12. By opening the semi-ring 12, it can be clamped from both sides of the pipe. Then, the semi-ring 12 is locked by bolts passing through the first ear plate 13. During the locking process, the rubber pad 5 will be squeezed and deformed, thereby forming a high friction with the outer wall of the pipe, so that the semi-ring 12 can be stably clamped on the pipe.
[0026] In one embodiment, the locking assembly includes a fixing block 2 disposed on one set of support arms 11, a rotating strut 21 rotatably disposed on the fixing block 2, and a supporting block 22 disposed on another set of support arms 11. The supporting block 22 has a slot 23 for the rotating strut 21 to engage. The end of the rotating strut 21 is provided with a connecting plate 24 that is bolted to and locked to the supporting block 22. By rotating the support arms 11 to form an angle of less than 180 degrees, the rotating strut 21 is rotated and engaged in the slot 23. The bolts are then used to lock the relative angle of the support arms 11 through the connecting plate 24 and the supporting block 22. This locking structure is mainly used when the structure is located at the pipe flange connection position, so that the two sets of support arms 11 will not rotate relative to each other, and the two sets of fixing rings 1 are fixed, thereby further enhancing the connection stability of the pipe.
[0027] In one embodiment, the locking assembly further includes two sets of connecting blocks 25 respectively disposed on the two sets of support arms 11 and in a mutually abutting and opposing state when the two sets of support arms 11 rotate to an angle of 180 degrees; the connecting blocks 25 are locked together by bolts. When the two sets of support arms 11 rotate to 180 degrees, the angle can be locked by bolts through the connecting blocks 25. At this time, the two sets of support arms 11 can be regarded as a whole support rod. Then, the two sets of fixing buckles 1 at both ends of the rod are locked to the two sides of the pipe section at the pipe bend, forming a diagonal bracing structure at the pipe angle, which strengthens the integrity of the bend and makes it less susceptible to structural deformation due to vibration.
[0028] In one embodiment, a connecting arm 3 is provided between the fixing ring 1 and the support arm 11, and the half rings 12 are hinged to each other by a movable shaft 31. One end of the connecting arm 3 is fixed on the movable shaft 31 and the other end is hinged to the support arm 11. By providing the connecting arm 3, the fixing ring 1 can also rotate relative to the support arm 11, which facilitates its clamping on the pipe, or can be used to lock some special bends where the included angle is not ninety degrees, and to adjust the clamping position of the fixing ring 1 on the pipes on both sides of the flange connection.
[0029] In one embodiment, a second ear plate 4 is also provided on the semi-ring 12. The second ear plate 4 is equipped with a threaded rod 41 that is movably connected to it and a nut 42 threaded on the threaded rod 41, which is used to lock the relative position between the two sets of fixing rings 1. By setting the threaded rod 41 and the nut 42, the stability of the two sets of fixing rings 1 locked on the pipes on both sides of the flange connection is further enhanced, and the misalignment and separation of the flange connection are prevented.
[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.
Claims
1. A water supply pipe protection assembly, characterized in that: it comprises two groups of fixing clamps (1) for buckling and fixing on the outer wall of the pipe, the upper end of the fixing clamp (1) is provided with two groups of support arm levers (11) hinged to each other; the support arm levers (11) are provided with a locking assembly for locking the relative included angle therebetween.
2. The water service main protection assembly of claim 1, wherein: the fixing clamp (1) comprises two groups of half-rings (12) hinged to each other, and the end of the half-ring (12) away from the hinge point is provided with a first ear plate (13) locked by bolt penetration.
3. The water service main protection assembly of claim 2, wherein: the locking assembly comprises a fixing block (2) provided on one group of support arm levers (11), a rotating clamping lever (21) rotatably provided on the fixing block (2), and a supporting clamping block (22) provided on the other group of support arm levers (11); the supporting clamping block (22) is provided with a clamping groove (23) for clamping the rotating clamping lever (21), and the end of the rotating clamping lever (21) is provided with a connecting plate (24) locked by bolt penetration with the supporting clamping block (22).
4. The water service main protection assembly of claim 3, wherein: the locking assembly further comprises two groups of connecting blocks (25) respectively provided on the two groups of support arm levers (11) and in a mutually abutting and opposite state when the two groups of support arm levers (11) are rotated to an included angle of one hundred and eighty degrees; the connecting blocks (25) are locked by bolt penetration.
5. The water service main protection assembly of claim 2, wherein: connecting arms (3) are provided between the fixing clamps (1) and the support arm levers (11), and the half-rings (12) are hinged by a movable shaft (31), wherein one end of the connecting arm (3) is fixed on the movable shaft (31) and the other end is hinged with the support arm lever (11).
6. The water service main protection assembly of claim 3, wherein: the half-rings (12) are further provided with second ear plates (4), the second ear plates (4) are provided with thread rods (41) movably penetrated thereon and nuts (42) threadedly sleeved on the thread rods (41), for locking the relative position between the two groups of fixing clamps (1).
7. A water mains protection assembly according to any one of claims 4 to 6, characterised in that: the inner arc side of the half-ring (12) is further provided with a rubber pad (5).