Vibration reduction type pump station gate structure
By designing multiple first-level vibration damping components and other vibration damping structures on the pump station gate, the gate vibration problem caused by water flow shock is solved, and the goal of better vibration damping effect and improving the operating safety of the gate is achieved.
Patent Information
- Application Number
- CN202421669950.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-07-15
AI Technical Summary
During the operation period, the hydraulic gate of the Changgou Pump Station Management Office's exit vibration caused by the impact of water flow, causing vibration resonance, mechanical fatigue and vibration of nearby structures, which poses safety hazards.
A vibration-absorbing pump station gate structure is designed, adopting multiple rows of first-stage vibration-absorbing components, including large-arced water guide plates, small-arced water guide plates and first-stage vibration-absorbing. Through the guide end wheels, guide side wheels, water blocking strips and secondary vibration-absorbing, the water flow is dispersed and the reverse guide flow is decontaminated to reduce the impact of the water flow and the gate vibration.
It effectively reduces the vibration of the gate, improves the safety of gate operation, avoids vibration resonance and mechanical fatigue, and extends the service life of the gate.
Smart Images
Figure CN222809961U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of pump station gates, in particular to a vibration reduction type pump station gate structure. Background Art
[0002] During operation, the hydraulic gate at the outlet of Changgou Pumping Station Management Office swings back and forth in the gate groove and hits the running track due to the impact of water flow on the gate body, causing large vibration noise and mechanical fatigue. The vibration of the gate body not only directly harms the gate itself, but also has a transmission hazard, causing vibration or resonance of other equipment components related to it, and sometimes also causes secondary hazards, causing vibration or resonance of nearby structures.
[0003] The direct harm caused by vibration is specifically manifested in the following aspects: During the operation of the gate, large vibrations will be generated due to the impact of water flow. These vibrations have corresponding frequencies. When they are close to or equal to the natural frequency of the gate, resonance will occur. The amplitude increases and the gate will vibrate violently. This vibration often causes fatigue of the gate components and damages the gate structure.
[0004] The specific hazards caused by vibration transmission are as follows: the vibration generated when the gate is in operation will be transmitted to the opening and closing equipment above through the suspension device, causing it to vibrate accordingly. When the vibration frequency is close to or equal to its natural frequency, the opening and closing equipment will vibrate strongly, causing the fixing bolts of its base to fatigue, loosen and deform, eventually causing damage to the mechanical equipment.
[0005] The secondary hazards caused by vibration are specifically manifested in the following aspects: when the frequency of gate vibration reaches or approaches the natural frequency of nearby structures, it will also cause the structures to resonate and cause cracks to appear in weak links or defects. When they are subjected to stress again, stress concentration will occur at the cracks, causing the cracks to further expand and cause more serious secondary hazards.
[0006] In summary, the development of vibration-reducing gate structures is crucial to the safe operation of pumping stations. Utility Model Content
[0007] In order to make up for the deficiencies of the prior art, the utility model provides a vibration reduction type pump station gate structure, which achieves a better vibration reduction effect when impacted by water flow.
[0008] The technical solution adopted by the utility model to solve the above technical problems is:
[0009] A vibration-damping pump station gate structure comprises a gate and a gate slot, wherein the water-facing side of the gate is provided with multiple columns or rows of first-level vibration-damping components, wherein the first-level vibration-damping components comprise a large arc water guide plate, a small arc water guide plate and a first-level vibration damper, wherein the middle part of the inner arc surface of the large arc water guide plate is connected to the small arc water guide plate via a plurality of brackets, the inner arc surface of the small arc water guide plate is arranged opposite to the inner arc surface of the large arc water guide plate, and a water guide channel is formed between the two along the direction of the inner arc surface of the large arc water guide plate, the outer arc surface of the small arc water guide plate is arranged toward the water-facing side, the outer arc surface of the large arc water guide plate is connected to the gate via a plurality of first-level vibration dampers, and the end extension line of the small arc water guide plate can extend to the large arc water guide plate, so that the water flow dispersed by the small arc water guide plate can enter the water guide channel.
[0010] Furthermore, the gate is connected to a guide end wheel and a guide side wheel that cooperate with the gate groove, a water-blocking strip is provided between the water-facing side of the gate and the gate groove, and a plurality of secondary shock absorbers are provided in the vertical direction between the water-receiving side of the gate and the gate groove, and the water-blocking strip and the secondary shock absorbers are both fixed to the gate.
[0011] Furthermore, the external ends of the plurality of secondary shock absorbers are connected to a stress dispersion plate.
[0012] Furthermore, the water blocking strip is a P-type water blocking strip, and the P-type water blocking strip is fixed to the gate via a fixing seat of the guide side wheel.
[0013] Furthermore, the external end of the primary shock absorber is connected with a fixing plate, and the fixing plate is an arc-shaped plate so that it fits the outer arc surface of the large arc water guide plate and is fixed by bolts.
[0014] Furthermore, the primary shock absorber and the bracket are arranged in a one-to-one correspondence.
[0015] Furthermore, the bracket is a fan-shaped plate, the long arc end of the fan-shaped plate is fixed to the small arc water guide plate, and the short arc end of the fan-shaped plate is fixed to the large arc water guide plate.
[0016] The utility model adopts the above technical solution, and has the advantages that: the vibration reduction type pump station gate structure can disperse the water flow and reverse the flow to dissipate energy through the first-level vibration reduction component setting, so as to reduce the impact of the water flow on the gate, thereby helping to reduce the vibration of the gate. Through the structural settings of the guide end wheel, the guide side wheel, the water blocking strip and the second-level vibration damper, the gate vibration can be further reduced, which is conducive to improving the safety of gate operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic cross-sectional top view of one embodiment of the utility model;
[0018] Figure 2 for Figure 1The side cross-sectional view of the gate along AA in the middle;
[0019] Figure 3 for Figure 1 A schematic diagram of the enlarged structure of the middle part A;
[0020] Figure 4 for Figure 2 Schematic diagram of the enlarged structure of part B in the middle.
[0021] In the figure, 1, gate, 2, gate groove, 3, primary vibration reduction assembly, 4, guide end wheel, 5, guide side wheel, 6, water blocking strip, 7, secondary vibration reduction device; 31, large arc water guide plate, 32, small arc water guide plate, 33, primary vibration reduction device, 34, bracket, 35, water guide channel, 36, fixing plate. DETAILED DESCRIPTION
[0022] In order to clearly illustrate the technical features of the present solution, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings. In the description of this specification, the description of reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0023] like Figure 1-4 As shown, in this embodiment, the damping pump station gate structure includes a gate 1 and a gate slot 2. The water-facing side of the gate 1 is provided with multiple columns or rows of primary damping components 3. The primary damping components 3 include a large arc water guide plate 31, a small arc water guide plate 32 and a primary damper 33. The middle part of the inner arc surface of the large arc water guide plate 31 is connected to the small arc water guide plate 32 through a plurality of brackets 34. The inner arc surface of the small arc water guide plate 32 is connected to the large arc water guide plate 31. The inner arc surfaces of the large arc water guide plate 31 are arranged opposite to each other, and a water guide channel 35 is formed between the two along the inner arc surface direction of the large arc water guide plate. The outer arc surface of the small arc water guide plate 32 is arranged toward the water-facing side. The outer arc surface of the large arc water guide plate 31 is connected to the gate 1 through a plurality of primary shock absorbers 33. The end extension line of the small arc water guide plate 32 can extend to the large arc water guide plate 31, so that the water flow dispersed by the small arc water guide plate 32 can enter the water guide channel 35.
[0024] The gate 1 is connected to a guide end wheel 4 and a guide side wheel 5 that cooperate with the gate groove 2. A water blocking strip 6 is provided between the water-facing side of the gate 1 and the gate groove 2. A plurality of secondary shock absorbers 7 are provided along the vertical direction between the water-receiving side of the gate 1 and the gate groove 2. The water blocking strip 6 and the secondary shock absorber 7 are both fixed to the gate 1.
[0025] Vibration reduction principle: When the water flow hits the gate 1, it first contacts the primary vibration reduction component 3, and is diverted under the action of the small arc water guide plate 32. The lower water flow hits the large arc water guide plate 31 and basically flows out from its lower end. The upper water flow hits the large arc water guide plate 31 and will be diverted again under gravity. A small part flows out along the upper end of the large arc water guide plate 31, and most of it flows out from the lower end along the water guide channel 35 under the action of gravity. The diversion will reduce the impact of the water flow on the gate. At the same time, the gate 1 is damped due to the action of the primary vibration damper 33, and finally the primary vibration reduction effect of the gate is achieved. After that, the gate is damped again under the action of the secondary vibration damper 7. The two vibration reductions can greatly reduce the vibration impact of the gate.
[0026] In one embodiment, if Figure 3 As shown, in order to reduce the stress concentration on a single secondary vibrator, a stress dispersion plate can be connected to the external ends of several secondary vibration absorbers 7 to distribute the stress and disperse the force.
[0027] In one embodiment, if Figure 3 As shown, the water blocking strip 6 is a P-type water blocking strip, which has a better water blocking effect. In order to facilitate its fixation, the P-type water blocking strip can be fixed to the gate 1 through a fixing seat of the guide side wheel 5.
[0028] In one embodiment, if Figure 4 As shown, the external end of the primary shock absorber 33 is connected to a fixing plate 36, and the fixing plate 36 is an arc-shaped plate so that it fits the outer arc surface of the large arc water guide plate 31 and is fixed by bolts. The fixing plate can improve the use strength of the large arc guide plate.
[0029] In one of the embodiments, the primary shock absorber 33 and the bracket 34 are arranged in a one-to-one correspondence, so that the structural strength is higher.
[0030] In one embodiment, if Figure 4 As shown, the bracket 34 is a fan-shaped plate, the long arc end of the fan-shaped plate is fixed to the small arc water guide plate 32, and the short arc end of the fan-shaped plate is fixed to the large arc water guide plate 31. Such a setting is conducive to improving the bearing capacity of the small arc water guide plate and has higher structural strength.
[0031] The above-mentioned specific implementation manner cannot be used as a limitation on the protection scope of the present utility model. For those skilled in the art, any replacement, improvement or change made to the implementation manner of the present utility model falls within the protection scope of the present utility model.
[0032] The matters not described in detail in the present invention are all known technologies to those skilled in the art.
Claims
1. A vibration-reducing pump station gate structure, characterized in that: It includes a gate and a gate groove, and the water-facing side of the gate is provided with multiple columns or rows of first-level vibration reduction components, and the first-level vibration reduction components include a large arc water guide plate, a small arc water guide plate and a first-level vibration reduction device. The middle part of the inner arc surface of the large arc water guide plate is connected to the small arc water guide plate through a plurality of brackets. The inner arc surface of the small arc water guide plate is arranged opposite to the inner arc surface of the large arc water guide plate, and a water guide channel along the inner arc surface of the large arc water guide plate is formed therebetween. The outer arc surface of the small arc water guide plate is arranged toward the water-facing side, and the outer arc surface of the large arc water guide plate is connected to the gate through a plurality of first-level vibration reduction devices. The end extension line of the small arc water guide plate can extend to the large arc water guide plate, so that the water flow dispersed by the small arc water guide plate can enter the water guide channel.
2. The vibration reduction pump station gate structure according to claim 1 is characterized in that: The gate is connected with a guide end wheel and a guide side wheel which cooperate with the gate groove. A water blocking strip is arranged between the water-facing side of the gate and the gate groove. A plurality of secondary shock absorbers are arranged in the vertical direction between the water-receiving side of the gate and the gate groove. The water blocking strip and the secondary shock absorber are both fixed to the gate.
3. The vibration reduction pump station gate structure according to claim 2 is characterized in that: The external ends of a plurality of secondary vibration absorbers are connected to a stress dispersion plate.
4. The vibration reduction pump station gate structure according to claim 2, characterized in that: The water blocking strip is a P-type water blocking strip, and the P-type water blocking strip is fixed to the gate through a fixing seat of the guide side wheel.
5. The vibration reduction pump station gate structure according to claim 1, characterized in that: The external end of the primary shock absorber is connected with a fixing plate, and the fixing plate is an arc-shaped plate so that it fits the outer arc surface of the large arc water guide plate and is fixed by bolts.
6. The vibration reduction pump station gate structure according to claim 1, characterized in that: The primary shock absorber and the bracket are arranged in one-to-one correspondence.
7. The vibration reduction pump station gate structure according to claim 1, characterized in that: The bracket is a fan-shaped plate, the long arc end of the fan-shaped plate is fixed to the small arc water guide plate, and the short arc end of the fan-shaped plate is fixed to the large arc water guide plate.