Noise reduction device of heat exchange station circulating pump

Abstract

The utility model discloses a noise reduction device of a heat exchange station circulating pump, which comprises a circulating pump, the inlet end and the outlet end of the circulating pump are fixedly connected with noise reduction pipes through sealing flanges, the ends, deviating from the circulating pump, of the two noise reduction pipes are fixedly connected with water pipes through sealing flanges, and the inner side walls of the noise reduction pipes are fixedly connected with sound absorption layers. A damping vibration attenuation layer is fixedly connected to the inner side wall of the sound absorption layer, and the inner surface of the damping vibration attenuation layer is arranged in a wavy shape. The noise reduction structure is reasonable in design, noise of an inlet and outlet pipeline of the circulating pump can be effectively reduced through the combined action of the sound absorption layer, the damping vibration attenuation layer and the flow guide grooves, especially the wavy fluctuation design of the inner surface of the damping vibration attenuation layer, and the working environment is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to circulating pump noise reduction technical field especially relates to a heat exchange station circulating pump's noise reduction device. BACKGROUND

[0002] Heat exchange station refers to the place where heat is concentrated and exchanged, and the heat exchange station circulating pump is one of the important equipment in the heat exchange station, which mainly functions to send hot water from the heat exchange station to the user and return the cold water from the user to the heat exchange station for heating.

[0003] However, when the circulating pump is running, the flow rate changes suddenly when the fluid enters and exits the circulating pump, and the fluid changes from laminar flow to turbulent flow. The pipes near the inlet and outlet collide and rub each other intensively under the turbulent flow of the fluid, and the fluid flow in the inlet and outlet pipes produces a lot of noise, which not only affects the physical and mental health of the operators, but also may interfere with the normal order of the surrounding environment. SUMMARY

[0004] The utility model provides a heat exchange station circulating pump's noise reduction device to solve the problem in the above -mentioned background art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A kind of heat exchange station circulating pump's noise reduction device, including circulating pump, the inlet and outlet end of the circulating pump are all connected with noise reduction pipe by sealing flange, the water pipe is fixedly connected to the one end of two noise reduction pipes away from circulating pump by sealing flange, the inner side wall of the noise reduction pipe is fixedly connected with sound-absorbing layer, the inner side wall of the sound-absorbing layer is fixedly connected with damping vibration reduction layer, the inner surface of the damping vibration reduction layer is arranged in wave shape.

[0007] Preferably, the inner surface of the damping vibration reduction layer is provided with a plurality of flow guide grooves, and the plurality of flow guide grooves are arranged in an annular array on the inner side wall of the damping vibration reduction layer.

[0008] Preferably, the damping vibration reduction layer is made of wear-resistant rubber material.

[0009] Preferably, the sound-absorbing layer is made of glass wool material.

[0010] Compared with the prior art, the utility model has the advantages that:

[0011] The device is reasonably designed, and through the comprehensive action of the sound-absorbing layer, the damping vibration reduction layer and the flow guide grooves, especially the wave-shaped undulating design of the inner surface of the damping vibration reduction layer, the noise of the inlet and outlet pipes of the circulating pump can be effectively reduced, and the working environment can be improved.

[0012] The above description is only a summary of the technical scheme of the present application, in order to more clearly understand the technical means of the present application, and can be implemented according to the content of the specification, the following is the preferred embodiment of the present application and the accompanying drawings are described in detail as follows. The specific embodiment of the present application is given in detail by the following examples and their accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0013] The accompanying drawings, which are included to provide a further understanding of the present application and are incorporated in and constitute a part of this application, illustrate embodiments of the present application and serve to explain the present application. In the drawings:

[0014] Fig. 1 A three-dimensional structure schematic diagram of the noise reduction device of the heat exchange station circulating pump according to the present application is provided.

[0015] Fig. 2 A three-dimensional structure schematic diagram of the noise reduction pipe according to the present application is provided.

[0016] Fig. 3 An internal section structure schematic diagram of the noise reduction pipe according to the present application is provided.

[0017] Fig. 4 A front view section structure schematic diagram of the noise reduction pipe according to the present application is provided.

[0018] In the drawings, the component list represented by each reference numeral is as follows:

[0019] 1, circulating pump; 2, noise reduction pipe; 3, water pipe; 4, sealing flange; 5, sound absorption layer; 6, damping vibration reduction layer; 7, flow guide groove. DETAILED DESCRIPTION

[0020] The principles and features of the present application are described below in conjunction with the accompanying drawings, and the examples are only used to explain the present application and are not used to limit the scope of the present application. In the following paragraphs, the present application is described in more detail by way of example with reference to the accompanying drawings. It should be noted that the drawings are greatly simplified and use non-precise proportions, only to facilitate and clearly assist in explaining the purpose of the embodiments of the present application.

[0021] Please refer to Figs. 1-4The utility model discloses an embodiment of a heat exchange station circulating pump's noise reduction device, including circulating pump 1, the import and export end of circulating pump 1 all are fixedly connected with the noise reduction pipe 2 through sealing flange 4, two noise reduction pipes 2 are fixedly connected with water pipe 3 through sealing flange 4 in the one end of deviating circulating pump 1, the inner side wall of noise reduction pipe 2 is pasted and fixed with sound absorption layer 5, sound absorption layer 5 adopts glass wool material, glass wool material has a large number of small pores, when sound wave enters the pore, will cause the vibration of pore inner air molecule, through the friction of air molecule and pore wall sound energy is converted into heat energy, to reach the purpose of sound absorption and noise reduction, the inner side wall of sound absorption layer 5 is pasted and fixed with damping vibration damper layer 6, damping vibration damper layer 6 adopts wear -resisting rubber material, wear -resisting rubber material has good damping performance, can absorb and consume the energy that pipeline vibration produces, reduce the transmission of vibration to the surrounding environment, further reduce noise, the inner surface of damping vibration damper layer 6 is set up in wave shape.

[0022] Specifically, the inner surface of the damping vibration damper layer 6 is provided with a plurality of flow guide grooves 7, and the plurality of flow guide grooves 7 are arranged in an annular array on the inner side wall of the damping vibration damper layer 6. The plurality of flow guide grooves 7 can guide the fluid to form a uniform flow layer on the inner surface of the damping vibration damper layer 6, further reducing the turbulence of the fluid.

[0023] The working principle of the utility model is as follows:

[0024] When the circulating pump 1 is running, the water flow flows out from the inlet and outlet of the circulating pump 1, and the noise generated by the turbulence of the circulating pump 1 is first transmitted to the damping vibration damper layer 6. The damping vibration damper layer 6 absorbs and consumes part of the vibration energy generated by the turbulence of the circulating pump 1, reducing the transmission of vibration. Then, the remaining sound waves enter the sound absorption layer 5, and the sound absorption layer 5 further reduces the noise. At the same time, the inner surface of the damping vibration damper layer 6 is designed in a wave shape. The wave shape can change the flow direction and speed distribution of the fluid, allowing the fluid to produce certain buffering and mixing effects during the flow process. In this way, the formation of local high-speed and low-speed zones in the pipeline can be avoided, reducing pressure fluctuations and noise generation. Furthermore, through the comprehensive effect of the above noise reduction measures, the noise of the pipeline at the inlet and outlet of the circulating pump 1 can be effectively reduced.

[0025] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any person skilled in the art can easily implement the utility model according to the drawings and the above description. However, any equivalent changes, modifications and evolutions made by those skilled in the art without departing from the technical scheme of the utility model, using the disclosed technical content, are also equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made according to the essential technology of the utility model are also within the protection scope of the technical scheme of the utility model.

Claims

1. A noise reduction device for a heat exchange station circulating pump, comprising a circulating pump (1), characterized in that, The inlet and outlet ends of the circulating pump (1) are fixedly connected with noise reduction pipes (2) through sealing flanges (4), the ends of the two noise reduction pipes (2) away from the circulating pump (1) are fixedly connected with water pipes (3) through sealing flanges (4), the inner side wall of the noise reduction pipe (2) is fixedly connected with a sound absorbing layer (5), the inner side wall of the sound absorbing layer (5) is fixedly connected with a damping vibration reduction layer (6), and the inner surface of the damping vibration reduction layer (6) is arranged in a wave shape.

2. The noise reduction device of a heat exchange station circulating pump according to claim 1, characterized in that, The inner surface of the damping vibration reduction layer (6) is provided with a plurality of flow guide grooves (7), and the plurality of flow guide grooves (7) are arranged in an annular array on the inner side wall of the damping vibration reduction layer (6).

3. The noise reduction device of a heat exchange station circulating pump according to claim 1, characterized in that, The damping vibration reduction layer (6) is made of wear-resistant rubber material.

4. The noise reduction device of a heat exchange station circulating pump according to claim 1, characterized in that, The sound absorbing layer (5) is made of glass wool material.

Images