Vibration damper of condensate pump

Abstract

The utility model belongs to the technical field of water pump vibration control, and discloses a condensate pump vibration damper. The vibration control device is used for controlling vibration of a main pump, is symmetrically mounted on a hanging lug on the periphery of a pump shaft of the condensate pump, and comprises a left mounting plate, a right mounting plate, an elastic body, a left connecting plate, a right connecting plate and a mass block, the left mounting plate and the right mounting plate are fixed on hanging lugs of the condensate pump; elastic bodies are installed between the left installation plate and the left connecting plate and between the right installation plate and the right connecting plate respectively and matched with mass blocks installed on the connecting plates, and vibration of the condensate pump is reduced through tuning energy absorption and damping energy dissipation of the whole vibration reduction device. The vibration damping device is convenient to install and good in vibration damping performance, vibration of the condensate pump can be reduced through tuning energy absorption and damping energy dissipation of the vibration damping device, and the problem that vibration of the condensate pump is violent is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of water pump vibration control, and in particular relates to a condensate water pump vibration reduction device. Background Art

[0002] Condensate pumps are important equipment used in thermal power plants to transport condensed water from steam turbines back to the boiler for reheating. During operation, condensate pumps will generate strong vibrations, which will reduce the mechanical properties of components and easily lead to loose connections between the pump and the connection, posing safety hazards. Therefore, it is necessary to install a special vibration reduction device for vibration reduction.

[0003] The existing vibration reduction device of the condensate pump is installed on the pump body, which is complex and difficult to install. Summary of the invention

[0004] The utility model aims to provide a condensate pump vibration reduction device with simple installation and good vibration reduction performance in view of the problem that the existing vibration reduction device of the water pump is complicated and difficult to install.

[0005] Specifically, the utility model is implemented by adopting the following technical solutions.

[0006] The utility model provides a condensate pump vibration reduction device, which is used to control the vibration of the main pump and is symmetrically mounted on the lugs on the outer periphery of the pump shaft of the condensate pump, and comprises a left mounting plate, a right mounting plate, an elastic body, a left connecting plate, a right connecting plate and a mass block;

[0007] The left mounting plate and the right mounting plate are fixed on the hanging ears of the condensate pump;

[0008] The elastic bodies are respectively installed between the left mounting plate and the left connecting plate, and between the right mounting plate and the right connecting plate, and cooperate with the mass blocks installed on the connecting plates to reduce the vibration of the condensate pump through the tuning energy absorption and damping energy consumption of the overall vibration reduction device.

[0009] Furthermore, the left mounting plate, the right mounting plate and the hanging ears of the condensate pump are detachably connected and fixed by fasteners.

[0010] Furthermore, the left mounting plate and the right mounting plate are both provided with a slot structure and a mounting hole; the slot structure cooperates with the hanging ear for positioning and slides relative to the hanging ear to facilitate the installation and disassembly of the condensate pump vibration reduction device; the left mounting plate, the right mounting plate and the hanging ear are fixed by fasteners passing through the mounting holes on the left mounting plate and the right mounting plate.

[0011] Furthermore, the left mounting plate and the right mounting plate are symmetrical in appearance.

[0012] Furthermore, the elastic body is clamped and compressed together with the mounting plate and the connecting plate through fasteners to form a part, and then fixed on the hanging ear.

[0013] Furthermore, the elastomer is an integrated structure or a composite structure; the composite structure is composed of several layers.

[0014] Furthermore, the elastic body is made of metal spring, TPE, rubber or metal rubber.

[0015] Furthermore, the mass block is an integrated structure or a composite structure; the composite structure is composed of several layers.

[0016] Furthermore, the several layers are made of different materials.

[0017] Furthermore, the left connecting plate, the right connecting plate and the mass block are fixed together to form a single part.

[0018] The beneficial effects of the condensate pump vibration reduction device of the utility model are as follows:

[0019] The condensate pump vibration reduction device of the utility model can be installed on condensate pumps of different types, thereby meeting the vibration reduction and noise reduction requirements of the condensate pumps.

[0020] The condensate pump vibration reduction device of the utility model is simple to install and operate, and is fixed on the outside of the equipment, which can reduce the requirements for the installation environment and reduce the difficulty of operation for workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of an embodiment of the utility model installed on a condensate pump.

[0022] Figure 2 yes Figure 1 A partial enlarged schematic diagram of .

[0023] Figure 3 It is a structural schematic diagram of an embodiment of the utility model.

[0024] Figure 4 It is a schematic diagram of an elastic body for installing a left mounting plate and a left connecting plate according to an embodiment of the utility model.

[0025] Figure 5 It is a schematic diagram of an elastic body for installing a right mounting plate and a right connecting plate according to an embodiment of the utility model.

[0026] Figure 6 It is a schematic diagram of a mass block for mounting a connecting plate according to an embodiment of the utility model.

[0027] Markings in the figure: 1- condensate pump vibration reduction device, 101- left mounting plate, 102- right mounting plate, 1021- slot structure, 1022- mounting hole, 103- elastic body, 104- left connecting plate, 105- right connecting plate, 106- mass block, 2- condensate pump, 201- hanging ear. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the embodiments and with reference to the accompanying drawings.

[0029] One embodiment of the utility model introduces a condensate pump vibration reduction device for controlling the vibration of the condensate pump. Figure 1 to Figure 5 As shown, the condensate pump vibration reduction device 1 of this embodiment is symmetrically installed on the hanging ears 201 on both sides of the condensate pump 2. The condensate pump vibration reduction device 1 includes a left mounting plate 101, a right mounting plate 102, an elastic body 103, a left connecting plate 104, a right connecting plate 105 and a mass block 106.

[0030] The left mounting plate 101, the right mounting plate 102 and the condensate pump hanging ear 301 are detachably connected and fixed to the hanging ear by fasteners, so that the condensate pump vibration reduction device as a whole is reliably fixed to the installed condensate pump 2. Elastic bodies 103 are respectively installed between the left mounting plate 101 and the left connecting plate 104, and between the right mounting plate 102 and the right connecting plate 105, and cooperate with the mass block 106 installed on the connecting plate to reduce the vibration of the condensate pump through the tuning energy absorption and damping energy consumption of the overall vibration reduction device.

[0031] The condensate pump vibration reduction device of the utility model realizes vibration reduction by using the principle of a dynamic vibration absorber. The dynamic vibration absorber mainly has three parameters: mass, stiffness, and damping. In the condensate pump vibration reduction device of the utility model, the mass block 106 provides the mass parameter, and the elastic body 103 provides the stiffness and damping parameters. By adjusting the size of these three parameters and matching the vibration parameters of the condensate pump, the purpose of reducing vibration is achieved.

[0032] Preferably, in another embodiment, the left mounting plate 101 and the right mounting plate 102 are symmetrically designed. The left mounting plate 101 and the right mounting plate 102 are both provided with a slot structure 1021 and a mounting hole 1022. The slot structure 1021 cooperates with the hanging ear 201 for positioning and slides relative to the hanging ear 201, so as to facilitate the installation and removal of the condensate pump vibration reduction device. The fasteners pass through the mounting holes 1022 on the left mounting plate 101 and the right mounting plate 102 and are fixed to the hanging ears.

[0033] Preferably, in another embodiment, the elastic body 103 is clamped and compressed together with the mounting plate and the connecting plate by fasteners to form a part, and then fixed on the hanging ear 201 .

[0034] Preferably, in another embodiment, the elastomer 103 adopts a composite structure, and the composite structure is composed of several layers. The composite structure can be composed of different layers of materials, and each material has its own unique properties, such as high elasticity. This diversity enables the elastomer 103 to meet more complex performance requirements. By carefully designing the arrangement and proportion of each layer of material, the stiffness, damping coefficient and response speed of the elastomer 103 can be customized so that the stiffness, damping coefficient and response speed of the elastomer 103 match the vibration frequency of the condensate pump 2, thereby improving the vibration reduction effect. Composite materials often have a higher strength-to-weight ratio and durability than single materials, which means that the elastomer of the composite structure can withstand greater stress and strain and extend its service life.

[0035] The elastic body 103 can be made of metal spring, TPE, rubber or metal rubber.

[0036] The mass block 106 is a one-piece structure. A one-piece structure is generally stronger than a composite structure because it reduces seams and connection points, which can be structural weak links; this means that a one-piece mass block can withstand greater forces and stresses without deformation or damage. When a mass block is made up of multiple components connected by bolts, welding or other means, these connections can become additional sources or paths of vibration; the one-piece structure eliminates these connections, thereby reducing the unintended transfer of vibration energy. The one-piece design means that during the manufacturing and installation process, there is no need to align and fix multiple independent components, which greatly simplifies the assembly process, reduces the risk of errors, and saves time and costs. Since there are no moving parts, the mass block of the one-piece structure will not fail due to loose bolts or worn parts, which improves the reliability and life of the entire system.

[0037] Preferably, in another embodiment, the mass block 106 adopts a composite structure, and the composite structure is composed of several layers, such as Figure 6 As shown. Each layer of the composite structure can be made of different materials. The mass block 106 is fixedly mounted on the connecting plate (104, 105) between the elastic bodies 103 on both sides. By adjusting the number and weight of the mass blocks 106, the resonant frequency of the condensate pump vibration reduction device can be changed, and the overall vibration reduction performance can be changed, thereby optimizing the vibration characteristics of the condensate pump.

[0038] Preferably, in another embodiment, the left connecting plate 101, the right connecting plate 102 are fixed together with the mass block 106 to form a single part. The part formed by fixing different mass blocks to the left connecting plate 101 and the right connecting plate 102 can be quickly installed with the left mounting plate and the right mounting plate, and can quickly adapt to the vibration reduction requirements of different condensate pumps.

[0039] During installation, the mass block 106 is pre-fixed to the left connecting plate 104 and the right connecting plate 105; then the left connecting plate 104, the right connecting plate 105, the elastomer 103, the left mounting plate 101, and the right mounting plate 102 are clamped and connected by fasteners (such as bolts); then the condensate pump vibration damping device 1 is slid as a whole along the slot structure 1021 to the predetermined position of the hanging ear 201 of the condensate pump 2, and finally the condensate pump vibration damping device 1 is connected to the condensate pump 2 by fasteners passing through the mounting hole 1022.

[0040] The condensate pump vibration reduction device of the utility model can be installed on condensate pumps of different types, thereby meeting the vibration reduction and noise reduction requirements of the condensate pumps.

[0041] The condensate pump vibration reduction device of the utility model is simple to install and operate, and is fixed on the outside of the equipment, which can reduce the requirements for the installation environment and reduce the difficulty of operation for workers.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent replacement and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A condensate pump vibration reduction device for controlling the vibration of a main pump, characterized in that: Symmetrically mounted on the lugs on the outer periphery of the pump shaft of the condensate pump, comprising a left mounting plate, a right mounting plate, an elastic body, a left connecting plate, a right connecting plate and a mass block; The left mounting plate and the right mounting plate are fixed on the hanging ears of the condensate pump; The elastic bodies are respectively installed between the left mounting plate and the left connecting plate, and between the right mounting plate and the right connecting plate, and cooperate with the mass blocks installed on the connecting plates to reduce the vibration of the condensate pump through the tuning energy absorption and damping energy consumption of the overall vibration reduction device.

2. The condensate pump vibration reduction device according to claim 1, characterized in that: The left mounting plate, the right mounting plate and the hanging ears of the condensate pump are detachably connected and fixed by fasteners.

3. The condensate pump vibration reduction device according to claim 2, characterized in that: The left mounting plate and the right mounting plate are both provided with a slot structure and a mounting hole; the slot structure cooperates with the hanging ear for positioning and slides relative to the hanging ear to facilitate the installation and disassembly of the condensate pump vibration reduction device; fasteners are passed through the mounting holes on the left mounting plate and the right mounting plate to fix the left mounting plate and the right mounting plate to the hanging ear.

4. The condensate pump vibration reduction device according to claim 1, characterized in that: The left mounting plate and the right mounting plate are symmetrical in appearance.

5. The condensate pump vibration reduction device according to claim 2, characterized in that: The elastic body is clamped and compressed together with the mounting plate and the connecting plate through fasteners to form a part, and then fixed on the hanging ear.

6. The condensate pump vibration reduction device according to claim 1, characterized in that: The elastomer is an integrated structure or a composite structure; the composite structure is composed of several layers.

7. The condensate pump vibration reduction device according to claim 6, characterized in that: The elastic body is made of metal spring, rubber or metal rubber.

8. The condensate pump vibration reduction device according to claim 1, characterized in that: The mass block is an integrated structure or a composite structure; the composite structure is composed of several layers.

9. The condensate pump vibration reduction device according to claim 8, characterized in that: Each layer of the composite structure is made of different materials.

10. The condensate pump vibration reduction device according to claim 1, characterized in that: The left connecting plate, the right connecting plate and the mass block are fixed together to form a single part.

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