Low-noise pump body

Abstract

The invention provides a low-noise pump body. The low-noise pump body comprises a buffer area shell, a buffer area is formed in the buffer area shell and can be used for reducing noise, an elastic film is fixedly connected to the interior of the buffer area shell, a vacuum cavity is formed between the elastic film and the buffer area shell, and a sound insulation cooling assembly is fixedly connected to the outer side of the buffer area shell; and a first circulating pipe and a second circulating pipe are arranged in the sound insulation and cooling assembly, a motor is fixed to the sound insulation and cooling assembly, and the output end of the motor is fixedly connected with a mounting shaft. According to the low-noise pump body, vibration and noise generated during operation of the pump body are effectively absorbed through the design of an elastic film and a vacuum cavity in a buffer area shell, the vacuum cavity further reduces the overall noise by isolating sound wave propagation, and a first circulating pipe and a second circulating pipe are used for cooling through the design of a sound insulation cooling assembly; and sound insulation cotton materials in the sound insulation chamber are combined, so that noise is effectively absorbed.

Description

Technical Field

[0001] The invention relates to the technical field of low-noise pump bodies, in particular to a low-noise pump body. Background Art

[0002] In the structural design of the low-noise pump body, the main components work closely together to achieve effective noise control and efficient operation. The core structure of the pump body consists of the pump housing, impeller, main shaft, motor, suction port and discharge port. The design of each component has been carefully optimized to reduce different types of noise sources. The pump housing not only provides basic structural support, but also uses multiple layers of sound insulation material to wrap it. This design can significantly reduce the noise leakage during mechanical operation. The impeller and main shaft are the moving parts inside the pump body. After precise matching, friction noise is greatly reduced. The fluid dynamic design of the impeller makes the flow of liquid inside the pump body smoother. The material selection and surface treatment technology of the main shaft help to extend the service life and further reduce the noise caused by friction. The motor adopts a low-speed and high-torque design, which can provide sufficient power output at low speed, thereby reducing the overall vibration amplitude of the pump body and reducing the noise generated during operation. The suction port and discharge port are optimized by fluid dynamics to reduce the turbulence phenomenon when the liquid flows through, thereby reducing fluid noise. The special inlet and outlet structure can not only maintain the smoothness of liquid flow, but also reduce the noise transmission caused by fluid impact.

[0003] Although this system has a good noise control effect, there are still some defects. After long-term use, the sound insulation material may fail due to wear and aging, resulting in a gradual increase in noise. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a low-noise pump body, which solves the problem of gradually increasing noise due to wear and aging of sound insulation materials after long-term use.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a low-noise pump body, comprising: A buffer zone housing has a buffer zone formed inside thereof and can be used for noise reduction, an elastic membrane is fixedly connected inside the buffer zone housing, and a vacuum chamber is formed between the elastic membrane and the buffer zone housing; A sound insulation and cooling component is fixedly connected to the outer side of the buffer zone housing, a first circulation pipe and a second circulation pipe are arranged inside the sound insulation and cooling component, a motor is fixed to the sound insulation and cooling component, an output end of the motor is fixedly connected to a mounting shaft, a cooling pipe is arranged on the sound insulation and cooling component, and a sound insulation chamber is arranged on the sound insulation and cooling component and outside the cooling pipe; A lateral sound insulation assembly, the lateral sound insulation assembly comprising a front sound insulation board, a first fixing member, screws, a rear fixing plate, a rear sound insulation board and a second fixing member; The front sound insulation board is provided with a water pump assembly, which includes an impeller body, an impeller casing, a water outlet pipe, perforations, a cavity and a sound insulation layer.

[0006] Preferably, the first circulation tube and the second circulation tube are distributed on the left and right and are connected with the interior of the second fixing member through an overflow port, the elastic membrane is elastic, and the interior of the vacuum chamber is vacuum.

[0007] Preferably, the cooling pipe is connected to the first circulation pipe, the soundproof chambers are distributed in a ring array, the inner surface of the soundproof chambers is arc-shaped, and sound insulation cotton is arranged inside the soundproof chambers.

[0008] Preferably, the side surface of the front sound insulation board is fixedly connected to a first fixing member, the first fixing member is fixed to a second fixing member by screws, and a sealing ring is provided on the front side of the front sound insulation board.

[0009] Preferably, a rear fixing plate is fixedly connected to the second fixing member, a rear sound insulation plate is fixedly connected to the rear fixing plate, and both the front sound insulation plate and the rear sound insulation plate are in contact with the motor.

[0010] Preferably, the sound insulation and cooling component is provided with a drain outlet, the drain outlet is connected with a water outlet pipe through a drain pipe, and the water outlet pipe is provided with a flow outlet.

[0011] Preferably, the impeller housing is fixedly connected to the front sound insulation board, the sound insulation layer is located inside the impeller housing, the cavity is located inside the impeller housing, and the perforation is located on the impeller housing.

[0012] Preferably, a connecting ring is provided on the impeller housing, and an inlet is provided on the connecting ring.

[0013] The present invention provides a low-noise pump body. It has the following beneficial effects: The low-noise pump body effectively absorbs the vibration and noise generated during the operation of the pump body through the elastic membrane and vacuum chamber design inside the buffer zone shell. The vacuum chamber further reduces the overall noise by isolating the propagation of sound waves. The design of the sound insulation and cooling component uses the first flow tube and the second flow tube for cooling, combined with the sound insulation cotton material in the sound insulation room, to effectively absorb noise, and reduce the noise problem caused by temperature increase through temperature control, thereby increasing the service life of the sound insulation material. This multi-layer noise reduction mechanism ensures that the pump body maintains a low noise level while operating efficiently.

[0014] It also delays the aging of the sound insulation material and improves the service life of the equipment. The existence of the vacuum chamber reduces the direct impact of vibration on the sound insulation material and reduces the possibility of wear of the sound insulation material during long-term operation. At the same time, the cooling function in the sound insulation and cooling component controls the internal temperature of the pump body to prevent aging of the sound insulation material caused by excessive temperature. Through effective cooling and isolation, the durability of the sound insulation material in high temperature and high load environment is guaranteed, and the performance and stability of the overall pump body are also improved accordingly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the buffer housing of the present invention; Figure 4 For the present invention Figure 2 A magnified schematic diagram of the structure at B in the middle; Figure 5 It is a partial structural schematic diagram of the present invention; Figure 6 For the present invention Figure 5 A schematic diagram of the structure enlargement in the middle; Figure 7 It is a schematic diagram of the internal structure of the impeller casing of the present invention.

[0016] Among them, 1. buffer shell; 2. sound insulation and cooling component; 3. first fixing part; 4. front sound insulation board; 5. screws; 6. sealing ring; 7. mounting shaft; 8. impeller body; 9. first flow pipe; 10. second flow pipe; 11. cooling pipe; 12. sound insulation chamber; 13. motor; 14. drain outlet; 15. drain pipe; 16. rear fixing plate; 17. rear sound insulation board; 18. second fixing part; 19. impeller shell; 20. water outlet pipe; 21. outflow port; 22. cavity; 23. perforation; 24. sound insulation layer; 25. inflow port; 26. connecting ring; 27. vacuum chamber; 28. elastic membrane; 29. ​​overflow port. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1

[0018] like Figure 1-7 As shown, an embodiment of the present invention provides a low-noise pump body, comprising: The buffer zone housing 1 has a buffer zone formed inside thereof and can be used for noise reduction. An elastic membrane 28 is fixedly connected inside the buffer zone housing 1, and a vacuum chamber 27 is formed between the elastic membrane 28 and the buffer zone housing 1; A sound insulation and cooling component 2 is fixedly connected to the outside of the buffer housing 1, a first circulation pipe 9 and a second circulation pipe 10 are arranged inside the sound insulation and cooling component 2, a motor 13 is fixed on the sound insulation and cooling component 2, and a mounting shaft 7 is fixedly connected to the output end of the motor 13, a cooling pipe 11 is arranged on the sound insulation and cooling component 2, a sound insulation chamber 12 is arranged on the sound insulation and cooling component 2 and outside the cooling pipe 11, the first circulation pipe 9 and the second circulation pipe 10 are distributed on the left and right and are connected to the inside of the second fixing member 18 through the overflow port 29, the elastic membrane 28 is elastic, the inside of the vacuum chamber 27 is vacuum, the cooling pipe 11 is connected to the first circulation pipe 9, the sound insulation chamber 12 is distributed in a ring array, the inner surface of the sound insulation chamber 12 is arc-shaped, and the inside of the sound insulation chamber 12 is provided with sound insulation cotton; A lateral sound insulation component, the lateral sound insulation component comprises a front sound insulation board 4, a first fixing member 3, a screw 5, a rear fixing plate 16, a rear sound insulation board 17 and a second fixing member 18, the side surface of the front sound insulation board 4 is fixedly connected to the first fixing member 3, the first fixing member 3 is fixed to the second fixing member 18 by means of a screw 5, a sealing ring 6 is arranged on the front side of the front sound insulation board 4, the rear fixing plate 16 is fixedly connected to the second fixing member 18, the rear sound insulation board 17 is fixedly connected to the rear fixing plate 16, the front sound insulation board 4 and the rear sound insulation board 17 are both in contact with the motor 13, a drain port 14 is arranged on the sound insulation and cooling component 2, the drain port 14 is connected to the water outlet pipe 20 through the drain pipe 15, and the water outlet pipe 20 is arranged with an outflow port 21; A water pump assembly is disposed on the front sound insulation board 4 , and the water pump assembly includes an impeller body 8 , an impeller casing 19 , a water outlet pipe 20 , a perforation 23 , a cavity 22 and a sound insulation layer 24 .

[0019] Embodiment 1, through the combined design of the buffer shell 1, the elastic membrane 28, and the vacuum chamber 27, can effectively reduce the mechanical noise and fluid noise generated during the operation of the pump body, ensure the overall low noise performance of the pump body, and have the dual functions of cooling and sound insulation: the sound insulation and cooling component 2 not only absorbs noise, but also realizes the temperature control of the pump body through the internal circulation pipe and cooling pipe 11, and prevents the aging of the sound insulation material caused by high temperature. The lateral sound insulation component contacts the motor 13 through the front sound insulation board 4 and the rear sound insulation board 17, which enhances the shock absorption effect of the pump body and reduces the influence of vibration propagation on noise. The drain pipe 15 is connected to the water outlet pipe 20 and is provided with an outflow port 21, which can quickly and effectively discharge excess liquid, keep the inside of the equipment clean and stable operation, and avoid the influence of excessive water accumulation on the sound insulation effect.

[0020] The buffer shell 1 provides external protection for the pump body, forming a buffer area for absorbing and reducing noise. The elastic membrane 28 is fixed inside the buffer shell 1 and works together with the vacuum chamber 27 to absorb vibration and noise through its elasticity, further reducing the propagation of sound waves. The vacuum chamber 27 is vacuum inside, which can effectively isolate the transmission of sound waves and enhance the overall sound insulation effect. The sound insulation and cooling component 2 combines the circulation pipe and the cooling pipe 11 to achieve cooling and noise absorption, and prevent the aging of the sound insulation material caused by high temperature. The motor 13 and the mounting shaft 7 provide power for the motor 13, and the mounting shaft 7 is connected to the motor 13, which is responsible for driving the impeller to rotate. The inner surface of the sound insulation chamber 12 is arc-shaped, and sound insulation cotton is provided to effectively absorb the noise generated when the pump body is running and slow down the noise leakage. The lateral sound insulation component includes a front sound insulation board 4, a rear sound insulation board 17 and related fixings to ensure the shock absorption and sound insulation effect of the pump body during operation. The pump water component is composed of an impeller body 8, an impeller shell 19, a cavity 22, a sound insulation layer 24, etc. Through the optimized design of the structure, the fluid turbulence noise is effectively reduced. Embodiment 2

[0021] like Figure 1-7 As shown, an embodiment of the present invention provides a low-noise pump body, comprising: The buffer zone housing 1 has a buffer zone formed inside thereof and can be used for noise reduction. An elastic membrane 28 is fixedly connected inside the buffer zone housing 1, and a vacuum chamber 27 is formed between the elastic membrane 28 and the buffer zone housing 1; A sound insulation and cooling component 2 is fixedly connected to the outside of the buffer zone housing 1, a first circulation pipe 9 and a second circulation pipe 10 are arranged inside the sound insulation and cooling component 2, a motor 13 is fixed to the sound insulation and cooling component 2, an output end of the motor 13 is fixedly connected to a mounting shaft 7, a cooling pipe 11 is arranged on the sound insulation and cooling component 2, and a sound insulation chamber 12 is arranged on the sound insulation and cooling component 2 and outside the cooling pipe 11; A lateral sound insulation assembly, the lateral sound insulation assembly comprises a front sound insulation board 4, a first fixing member 3, a screw 5, a rear fixing plate 16, a rear sound insulation board 17 and a second fixing member 18; A water pump assembly is provided on the front sound insulation board 4, and the water pump assembly includes an impeller body 8, an impeller casing 19, a water outlet pipe 20, a perforation 23, a cavity 22 and a sound insulation layer 24. The impeller casing 19 is fixedly connected to the front sound insulation board 4, the sound insulation layer 24 is located inside the impeller casing 19, the cavity 22 is located inside the impeller casing 19, the perforation 23 is located on the impeller casing 19, a connecting ring 26 is provided on the impeller casing 19, and an inlet 25 is provided on the connecting ring 26.

[0022] Compared with the first embodiment, the structure of the second embodiment is simpler and the number of components is reduced, which helps to reduce manufacturing costs and improve the stability and reliability of the system. The sound insulation layer 24 and the cavity 22 design inside the impeller housing 19 effectively reduce the noise propagation when the impeller rotates. At the same time, the perforation 23 design is adopted to further dissipate the noise. The pump water assembly reduces the noise caused by the liquid flow when the impeller rotates through the close combination of the impeller body 8 and the impeller housing 19, and the joint action of the sound insulation layer 24 and the cavity 22.

[0023] Working principle: When the pump body is running, the buffer shell 1 can absorb vibration and noise through the internal buffer area. The vacuum chamber 27 formed between the elastic membrane 28 and the buffer shell 1 can effectively block the propagation of sound waves by using the vacuum environment. At the same time, the elastic membrane 28 can further absorb mechanical vibrations and reduce noise leakage. The interior of the sound insulation and cooling component 2 is provided with a first flow pipe 9 and a second flow pipe 10, which are connected to the inside of the system through the overflow port 29 to ensure stable temperature control of the pump body. The cooling pipe 11 on the component effectively reduces the heat generated by the pump body during long-term operation and avoids aging of the sound insulation material caused by high temperature. The sound insulation chamber 12 arranged on the outside of the component can further absorb and block the propagation of noise through the design of the annular array and the internal sound insulation cotton. The lateral sound insulation component is coordinated by the front sound insulation board 4, the rear sound insulation board 17 and the fixing parts. The front sound insulation board 4 is fixed to the first fixing part 3 and the second fixing part 18 by screws 5, making the overall structure more stable. At the same time, the front side of the front sound insulation board 4 is equipped with a sealing ring 6, and the front sound insulation board 4 and the rear sound insulation board 17 are both The impeller body 8 in the water pump assembly is fixed to the front sound insulation board 4 through the impeller housing 19. The sound insulation layer 24 and the cavity 22 arranged inside the impeller housing 19 effectively reduce the turbulent noise during the flow of the liquid by optimizing the fluid path of the impeller. The perforations 23 on the housing and the internal sound insulation design effectively block the propagation of noise, so that the noise generated by the impeller during operation is greatly reduced. A drain port 14 is arranged on the sound insulation and cooling assembly 2, which is connected to the outlet pipe 20 through the drain pipe 15 to ensure that the excess coolant of the pump body can be discharged smoothly during operation to avoid the noise and vibration problems caused by the accumulation of water flow. An outflow port 21 is also arranged on the outlet pipe 20 to further improve the drainage efficiency and the operation stability of the system. The impeller housing 19 is connected to the inflow port 25 through the connecting ring 26 to ensure the smooth flow of the liquid and reduce the noise caused by the uneven inflow of the fluid. The design of the impeller housing 19 not only ensures the smooth flow of the fluid, but also further reduces the noise through the sound insulation layer 24 and the internal cavity 22.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low noise pump body, characterized in that: include: A buffer zone housing (1) having a buffer zone formed therein and capable of being used for noise reduction, wherein an elastic membrane (28) is fixedly connected to the interior of the buffer zone housing (1), and a vacuum chamber (27) is formed between the elastic membrane (28) and the buffer zone housing (1); A sound insulation and cooling component (2) is fixedly connected to the outside of the buffer zone housing (1), a first circulation pipe (9) and a second circulation pipe (10) are arranged inside the sound insulation and cooling component (2), a motor (13) is fixed to the sound insulation and cooling component (2), an output end of the motor (13) is fixedly connected to a mounting shaft (7), a cooling pipe (11) is arranged on the sound insulation and cooling component (2), and a sound insulation chamber (12) is arranged on the sound insulation and cooling component (2) and outside the cooling pipe (11); A lateral sound insulation component, the lateral sound insulation component comprising a front sound insulation board (4), a first fixing member (3), a screw (5), a rear fixing plate (16), a rear sound insulation board (17) and a second fixing member (18); A water pump assembly is provided on the front sound insulation board (4), the water pump assembly comprising an impeller body (8), an impeller casing (19), a water outlet pipe (20), a perforation (23), a cavity (22) and a sound insulation layer (24).

2. A low noise pump body according to claim 1, characterized in that: The first circulation tube (9) and the second circulation tube (10) are distributed on the left and right and are connected to the interior of the second fixing member (18) through an overflow port (29). The elastic membrane (28) has elasticity, and the interior of the vacuum chamber (27) is a vacuum.

3. A low noise pump body according to claim 1, characterized in that: The cooling pipe (11) is in communication with the first circulation pipe (9); the soundproof chambers (12) are distributed in a ring array; the inner surfaces of the soundproof chambers (12) are arc-shaped; and soundproof cotton is arranged inside the soundproof chambers (12).

4. A low noise pump body according to claim 1, characterized in that: The side surface of the front sound insulation board (4) is fixedly connected to the first fixing member (3), the first fixing member (3) is fixed to the second fixing member (18) via screws (5), and a sealing ring (6) is provided on the front side of the front sound insulation board (4).

5. A low noise pump body according to claim 4, characterized in that: The second fixing member (18) is fixedly connected to a rear fixing plate (16), the rear fixing plate (16) is fixedly connected to a rear sound insulation plate (17), and both the front sound insulation plate (4) and the rear sound insulation plate (17) are in contact with the motor (13).

6. A low noise pump body according to claim 1, characterized in that: The sound insulation and cooling component (2) is provided with a drain port (14), the drain port (14) is connected to a water outlet pipe (20) via a drain pipe (15), and the water outlet pipe (20) is provided with an outflow port (21).

7. A low noise pump body according to claim 1, characterized in that: The impeller housing (19) is fixedly connected to the front sound insulation board (4), the sound insulation layer (24) is located inside the impeller housing (19), the cavity (22) is located inside the impeller housing (19), and the through hole (23) is located on the impeller housing (19).

8. A low noise pump body according to claim 7, characterized in that: The impeller housing (19) is provided with a connecting ring (26), and the connecting ring (26) is provided with an inlet (25).

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