Damping device for condensate pump

Abstract

The utility model belongs to the technical field of vibration treatment, and particularly provides a condensate pump damping device which comprises a bottom plate and a damping unit. A plurality of mounting holes are formed in the bottom plate and are used for being connected with a condensate pump; the vibration reduction unit is fixed on the bottom plate; the vibration reduction unit comprises a fixing block, an elastic module and a balancing weight. The elastic module is fixedly connected with the bottom plate; the fixed block is fixedly connected with the elastic module; and the balancing weight is fixedly connected with the fixed block. The fixing block and the elastic module are combined to form the vibration reduction unit, the vibration reduction unit is fixed to the condensate pump through the bottom plate, the vibration reduction function of the condensate pump is achieved, the structure is simple, and the vibration reduction device is not limited by the environment.

Description

Technical Field

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

[0002] Condensate pumps are important operating equipment in power plants. When they have excessive vibration problems, it will not only affect the safety and reliability of their own operation, but also affect the normal operation and power generation of the power plant. Currently, most of the measures to control condensate pump vibrations are to strengthen support and adjust the speed. In most cases, the vibration cannot be effectively reduced and the problem cannot be eliminated. In addition, the operation of the pump unit is still limited or risks may arise due to excessive vibration during long-term operation.

[0003] In order to solve the problems existing in the prior art, technical personnel in this field have made many efforts. For example, Chinese patent application CN105041663A proposes a vibration-damped condensate pump and a vibration-damping method thereof. The low-frequency vibration problem of the condensate pump is effectively solved by combining a method of changing the fluid flow field at the outlet of the condensate pump impeller and eliminating the original slight imbalance of the impeller. However, the implementation process is relatively complicated and has certain environmental limitations. Utility Model Content

[0004] To solve the above problems, the utility model provides a condensate pump vibration reduction device, which comprises a vibration reduction unit formed by a combination of a fixed block and an elastic module, and the vibration reduction unit is fixed to the condensate pump through a base plate to realize the vibration reduction function of the condensate pump. The structure is simple and not restricted by the environment.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is a condensate pump vibration reduction device, including a base plate and a vibration reduction unit; the base plate is provided with a plurality of mounting holes for connecting to the condensate pump; the vibration reduction unit is fixed to the base plate; the vibration reduction unit includes a fixed block, an elastic module and a counterweight block; the elastic module is fixedly connected to the base plate; the fixed block is fixedly connected to the elastic module; the counterweight block is fixedly connected to the fixed block.

[0006] Furthermore, the elastic module includes an upper panel, a lower panel and an elastic member; the elastic member is arranged between the upper panel and the lower panel, and is fixed to the upper panel and the lower panel; the upper panel and the lower panel are both provided with a first fixing interface; which is used to be fixedly connected to the fixing module and the base plate respectively.

[0007] Furthermore, a second fixing interface is provided on the fixing block at a position corresponding to the first fixing interface, and is used to connect the fixing block and the upper panel.

[0008] Furthermore, a first mounting interface is provided on both sides of the fixed block; a groove is provided on the bottom surface of the fixed block corresponding to the first mounting interface; a second mounting interface is provided on both sides of the counterweight block; the counterweight block is placed in the groove and connected to the fixed block through the first mounting interface and the second mounting interface.

[0009] Furthermore, the bottom plate is in a square shape; the elastic module is located at the upper and lower sides of the bottom plate; the counterweight block is located at the left and right sides of the bottom plate; and the fixed block is located above the elastic module.

[0010] The technical solution described in the utility model has the following beneficial effects:

[0011] The utility model is fixedly connected by a fixed block and an elastic module, and a vibration reduction unit is formed by adding a counterweight block on the fixed block, and the vibration reduction unit is fixed to the condensate pump through a base plate. The structure is simple and the operation process is simple. At the same time, by fixing the counterweight block to the outside of the equipment, the vibration reduction device can be installed on the condensate pump of a narrow space type, thereby avoiding the limitations caused by the installation environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below according to specific embodiments and in combination with the accompanying drawings.

[0013] Figure 1 It is a schematic diagram of the structure of the condensate pump vibration reduction device.

[0014] Figure 2 It is a schematic diagram of the base plate structure.

[0015] Figure 3 It is a schematic diagram of the elastic module structure.

[0016] Figure 4 It is a schematic diagram of the fixed block structure.

[0017] Figure 5 It is a schematic diagram of the counterweight structure.

[0018] Figure 6 This is a schematic diagram of an installation example of a condensate pump vibration reduction device.

[0019] Among them: 1-bottom plate; 11-mounting hole; 12-fixing hole; 2-elastic module; 21-upper panel; 211-first fixing interface; 22-lower panel; 23-elastic member; 3-fixing block; 31-second fixing interface; 32-groove; 33-first mounting interface; 4-counterweight block; 41-second mounting interface; 5-fastener. DETAILED DESCRIPTION

[0020] The technical solution of the utility model is further explained below in conjunction with the accompanying drawings, but it is not limited to this. Any modification or equivalent replacement of the technical solution of the utility model without departing from the spirit and scope of the technical solution of the utility model should be included in the protection scope of the utility model.

[0021] like Figure 1 As shown, the utility model proposes a condensate pump vibration reduction device, which is composed of a vibration reduction unit and a base plate 1; the base plate 1 is fixedly installed on the condensate pump; the vibration reduction unit is fixedly installed on the base plate 1, and is used to form a tuned mass damper through the vibration reduction unit, and utilize its tuning and damping energy absorption to reduce the vibration of the condensate pump.

[0022] like Figure 2-5 As shown, the bottom plate 1 is square in shape; it is composed of four upper, lower, left and right flat plates; wherein, a mounting hole 11 is provided in the middle of the upper and lower flat plates, and two rows of bottom plate 1 fixing interfaces are provided on both sides of the mounting hole 11; a plurality of fixing holes 12 are arranged on the left and right flat plates, and the bottom plate 1 is mounted on the condensate pump through the mounting hole 11, and is fixed to the condensate pump through the fixing hole 12, thereby providing a base for the installation of the vibration reduction unit.

[0023] The vibration reduction unit is composed of two fixed blocks 3, two elastic modules 2 and two counterweight blocks 4; the elastic module 2 is composed of an upper panel 21, a lower panel 22 and an elastic member 23; the elastic member 23 can be made of rubber or metal rubber material in a rectangular, elliptical or other irregular polygonal structure; it can also be an elastic structure composed of multiple springs, preferably a rectangular rubber body. The elastic member 23 is arranged between the upper panel 21 and the lower panel 22, and the three are fixed by bonding. A plurality of first fixing interfaces 211 arranged in two rows are provided on both sides of the upper panel 21 and the lower panel 22.

[0024] The fixed block 3 is in the shape of a rectangular parallelepiped, with a length longer than the upper panel 21 and a width slightly greater than or equal to the upper panel 21; grooves 32 are provided on both sides of the bottom surface of the fixed block 3, so that the cross-section of the fixed block 3 is in a "concave" shape; a first mounting interface 33 is arranged in two rows along the vertical direction at the groove 32, which is used to fix the fixed block 3 and the counterweight block 4; a second fixing interface 31 is provided on the fixed block 3 at a position corresponding to the first fixing interface 211 of the upper panel 21, which is used to fix the upper panel 21 and the fixed block 3.

[0025] The structure of the counterweight block 4 can be a combination of plate, block or other shapes, preferably a rectangular block, and its width matches the width of the groove 32 on the fixed block 3; second mounting interfaces 41 are arranged in two rows in the vertical direction at positions corresponding to the first mounting interfaces 33 on both sides, and the two sides are respectively located in the grooves 32 of the fixed blocks 3 on the upper and lower sides. The counterweight block 4 can be fixed on the fixed block 3 by cooperating with the first mounting interface 33 and the second mounting interface 41.

[0026] Among them, the first fixed interface 211, the second fixed interface 31, the first installation interface 33, the second installation interface 41 and the base plate 1 fixed interface are all through-hole structures, and threads are provided in the through-holes. The inner diameters of the first fixed interface 211, the second fixed interface and the base plate 1 fixed interface are consistent; the inner diameters of the first installation interface 33 and the second installation interface 41 are consistent.

[0027] like Figure 6 As shown, when in use, first fix the upper panel 21, the lower panel 22 and the elastic member 23 to form an elastic module 2, then make the first fixing interface 211 on the lower panel 22 correspond to the bottom plate 1 fixing interface set on the bottom plate 1, and fix the two together by bolts, and then fix the upper panel 21 and the fixed block 3 in the same way, and then install the bottom plate 1 on the condensate pump, place the two sides of the counterweight block 4 in the grooves 32 on the same side of the two fixed blocks 3 respectively, and make the positions of the first mounting interface 33 and the second mounting interface 41 correspond, and then fix the two together by bolts, so as to fix the counterweight block 4 to the fixed block 3, and at the same time, fix the second counterweight block 4 to the fixed block 3 in the same way, and finally, install the fastener 5 above the fixed block 3 to reinforce the structural strength, and then complete the installation of the vibration reduction device to perform the vibration reduction work of the condensate pump.

[0028] Preferably, in another embodiment of the utility model, in order to adapt to the different external structures of the condensate pump in different usage environments, the base plate 1 can be a combination of multiple parts. For example, the base plate 1 is composed of an installation bracket and upper and lower horizontal plates. The installation bracket is adapted to the external structure of the condensate pump and fixed on the condensate pump. The vibration reduction unit is then fixed to the installation bracket through the upper and lower horizontal plates to realize the installation of the vibration reduction unit, thereby realizing the vibration reduction function of the condensate pumps with different external structures.

[0029] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A condensate pump vibration reduction device, characterized in that: The invention comprises a base plate (1) and a vibration reduction unit; the base plate (1) is provided with a plurality of mounting holes (11) and fixing holes (12) for connecting to a condensate pump; the vibration reduction unit is fixed to the base plate (1); the vibration reduction unit comprises a fixing block (3), an elastic module (2) and a counterweight block (4); the elastic module (2) is fixedly connected to the base plate (1); the fixing block (3) is fixedly connected to the elastic module (2); and the counterweight block (4) is fixedly connected to the fixing block (3).

2. The condensate pump vibration reduction device according to claim 1, characterized in that: The elastic module (2) comprises an upper panel (21), a lower panel (22) and an elastic member (23); the elastic member (23) is arranged between the upper panel (21) and the lower panel (22), and is fixed to the upper panel (21) and the lower panel (22); the upper panel (21) and the lower panel (22) are both provided with a first fixing interface (211) which is used to be fixedly connected to the fixing block (3) and the bottom plate (1) respectively.

3. The condensate pump vibration reduction device according to claim 2, characterized in that: A second fixing interface (31) is provided on the fixing block (3) at a position corresponding to the first fixing interface (211); the second fixing interface (31) is used to connect the fixing block (3) and the upper panel (21).

4. The condensate pump vibration reduction device according to claim 1, characterized in that: First mounting interfaces (33) are provided on both sides of the fixed block (3); grooves (32) are provided on the bottom surface of the fixed block (3) at positions corresponding to the first mounting interfaces (33); second mounting interfaces (41) are provided on both sides of the counterweight block (4); the counterweight block (4) is placed in the grooves (32) and is connected to the fixed block (3) via the first mounting interface (33) and the second mounting interface (41).

5. The condensate pump vibration reduction device according to claim 1, characterized in that: The bottom plate (1) is square in shape; the elastic module (2) is located on the upper and lower sides of the bottom plate (1); the counterweight block (4) is located on the left and right sides of the bottom plate (1); and the fixed block (3) is located above the elastic module (2).

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