A low noise water pump system

Abstract

The application relates to the field of water pumps and discloses a low-noise water pump system which comprises a water inlet pipe and a water outlet pipe, a water pumping device is arranged between the water inlet pipe and the water outlet pipe, and the water pumping device is used for conveying liquid in the water inlet pipe and the water outlet pipe; the system further comprises a balancing device used for reducing water pump vibration; the balancing device comprises a supporting seat and a balancing seat, a pressure cavity is formed between the supporting seat and the balancing seat, an overflow ring gap is formed between the balancing seat and the supporting seat, a soft liquid discharging ring is arranged between the supporting seat and the balancing seat, the overflow ring gap and the soft liquid discharging ring are in communication, the soft liquid discharging ring is in communication with the water outlet pipe, and the water outlet pipe is in communication with the pressure cavity. The application has the effects of reducing vibration generated during water pump operation, reducing vibration propagation, and ensuring water pump use experience.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of water pumps, in particular to a low-noise water pump system. BACKGROUND

[0002] At present, there are many kinds of water pumps. From the principle, it can be divided into air pressure pump, centrifugal pump, axial flow pump, mixed flow pump, screw pump, etc. The most commonly used is centrifugal pump. The principle of centrifugal pump is centrifugal phenomenon. It relies on the rotation of impeller blades to produce centrifugal effect to throw out the liquid. Therefore, its conveying effect depends on the speed, diameter and other factors of the impeller.

[0003] In the related art, the water pump produces a large noise in the use of the project. On the one hand, when driving the water pump to rotate, a driving part needs to be used. The driving part will produce a certain vibration in the process of use, which affects the use experience of the pump. On the other hand, when the water pump transports water, there is a large resistance in the pipeline. When the water pump is conveyed, the water flow rate changes at the position of the resistance, which causes vibration at the position of the resistance. When the water is discharged, the resistance is formed, which affects the driving of the impeller, and a relatively large pressure is formed between the resistance position and the impeller. Therefore, when the impeller and the water contact, the water is not easy to discharge, which easily causes greater vibration between the water and the impeller, affecting the use experience of the water pump.

[0004] Therefore, the present application provides a low-noise water pump system. SUMMARY

[0005] In order to reduce the vibration generated by the water pump during work and reduce the propagation of vibration, and to ensure the use experience of the water pump, the present application provides a low-noise water pump system.

[0006] The low-noise water pump system provided by the present application adopts the following technical scheme:

[0007] A low-noise water pump system, comprising a water inlet pipe and a water outlet pipe, a water pump device is arranged between the water inlet pipe and the water outlet pipe, and the water pump device is used for conveying liquid in the water inlet pipe and the water outlet pipe; the system further comprises a balancing device for reducing the vibration of the water pump; the balancing device comprises a support seat and a balance seat, a pressure cavity is formed between the support seat and the balance seat, an overflow ring gap is formed between the balance seat and the support seat, a soft liquid discharge ring is arranged between the support seat and the balance seat, the overflow ring gap and the soft liquid discharge ring are in communication, the soft liquid discharge ring is in communication with the water outlet pipe, and the water outlet pipe is in communication with the pressure cavity.

[0008] By adopting the technical scheme, when the water pump is working, liquid is sucked into the water inlet pipe and discharged from the water outlet pipe under the action of the water pumping device, when liquid flows into the water outlet pipe, liquid is injected into the pressure chamber at the same time, thereby pushing the plurality of support seats to move upward, and because the pressure is consistent, the water pump can be kept horizontal; liquid flows into the soft liquid discharge ring through the overflow ring gap and is then discharged into the liquid inlet pipe, thereby completing the circulation of liquid. With such a design, the high-pressure liquid in the pressure chamber can buffer the vibration of the water pump, thereby not only balancing the vibration of the water pump and reducing the vibration of the water pump, but also reducing the conduction of the vibration of the water pump, and the overflow ring gap can slow down the horizontal shaking, thereby better improving the stability of the water pump and improving the use experience of the water pump.

[0009] Preferably, the outer diameter of the support seat gradually decreases in the direction close to the balancing seat.

[0010] By adopting the technical scheme, when the water pump is working, liquid is sucked into the water inlet pipe and discharged from the water outlet pipe under the action of the water pumping device, when liquid flows into the water outlet pipe, liquid is injected into the pressure chamber at the same time, thereby pushing the plurality of support seats to move upward, and because the pressure is consistent, the water pump can be kept horizontal; liquid flows into the soft liquid discharge ring through the overflow ring gap and is then discharged into the liquid inlet pipe, thereby completing the circulation of liquid. With such a design, the high-pressure liquid in the pressure chamber can buffer the vibration of the water pump, thereby not only balancing the vibration of the water pump and reducing the vibration of the water pump, but also reducing the conduction of the vibration of the water pump, and the overflow ring gap can slow down the horizontal shaking, thereby better improving the stability of the water pump and improving the use experience of the water pump.

[0011] Preferably, the support seat is provided with a liquid injection hole communicated with the pressure chamber, the liquid injection hole is provided with a liquid inlet branch pipe, the water outlet pipe is provided with a liquid inlet main pipe, and the plurality of liquid inlet branch pipes are communicated with the liquid inlet main pipe; the bottom of the support seat is provided with a flow limiting pipe communicated with the liquid injection hole, the outer wall of the flow limiting pipe is provided with a plurality of liquid outlets, the flow limiting pipe is sleeved with a sliding ring, the sliding ring is used to close part of the liquid outlets, the bottom of the pressure chamber is provided with a connecting spring fixedly connected with the sliding ring, and when the support seat moves away from the balancing seat, the sliding ring moves downward and increases the number of closed liquid outlets, and when the support seat moves close to the balancing seat, the sliding ring moves upward and reduces the number of closed liquid outlets.

[0012] By adopting the technical scheme, under normal conditions, the sliding ring blocks part of the liquid outlets, when the vibration amplitude is large and the support seat moves downward, the number of closed liquid outlets of the sliding ring is reduced, thereby increasing the liquid pressure in the pressure chamber, so as to drive the support seat to reset, when the support seat moves upward and the number of closed liquid outlets of the sliding ring is increased, the liquid pressure in the pressure chamber is reduced, so as to make the support seat reset, thereby better ensuring the timely reset of the water pump and improving the stability of the water pump.

[0013] Preferably, the bottom of the support seat is provided with a compression spring, and the two ends of the compression spring are respectively abutted against the bottom of the support seat and the bottom of the pressure cavity.

[0014] By adopting the technical scheme, the water pump can be supported by the compression spring after the water pump stops working, the abutment of the flow limiting ring against the bottom of the pressure cavity is reduced, the damage to the flow limiting ring is reduced, and the service life of the water pump parts is ensured.

[0015] Preferably, the system further comprises a base for fixing the water inlet pipe and the water outlet pipe and a height adjusting device, the height adjusting device comprises a plurality of adjusting seats fixed on the base, and the adjusting seats are provided with a clamping ring for clamping the water inlet pipe or the water outlet pipe.

[0016] By adopting the technical scheme, when the water inlet pipe and the water outlet pipe are fixed, the adjusting seat with appropriate height is adopted, so that the outlet of the water outlet pipe and the to-be-connected pipeline are accurately aligned, the convenience of fixing the water inlet pipe and the water outlet pipe is improved, the elbow of the pipeline is reduced, the resistance of the liquid in the pipeline is reduced, and the convenience of liquid conveying is improved.

[0017] Preferably, the water pumping device is a centrifugal pump, a plurality of communication pipes are communicated between the water inlet pipe and the water outlet pipe, the centrifugal pump is arranged on the communication pipe, and a plurality of cold-drawing guide pipes are integrally formed on the water inlet pipe and the water outlet pipe and fixedly connected with the plurality of communication pipes.

[0018] By adopting the technical scheme, the cold-drawing guide pipe is made on the water inlet pipe and the water outlet pipe, on the one hand, the welding seam is reduced due to the adoption of certain forming, so that the water resistance is reduced, and on the other hand, the cold-drawing technology is adopted, so that the cold-drawing guide pipe is smoothly transitioned, and the flow of the liquid is improved.

[0019] Preferably, the water inlet pipe and the water outlet pipe are both sleeved with a sound insulation sleeve.

[0020] By adopting the technical scheme, on the one hand, the vibration of the pipeline can be reduced, and the stability of the pipeline can be improved, and on the other hand, the sound insulation effect can be achieved, the oxidation of the surface of the pipeline can be reduced, and the service life of the water inlet pipe and the water outlet pipe can be ensured.

[0021] Preferably, the water outlet pipe is provided with a hose.

[0022] By adopting the technical scheme, the vibration of the water pump can be reduced, the vibration isolation effect can be improved by the hose, the damage to the connection between the hose and the water outlet pipe can be reduced, and the service life of the water pump can be ensured.

[0023] Preferably, the system further comprises a sound insulation device, the sound insulation device comprises a sound insulation cover for sound insulation, and the hose penetrates through the sound insulation cover.

[0024] By adopting the technical scheme, the sound conduction is reduced by using the sound shield, the noise pollution is reduced, the convenience of using the water pump is improved, the liquid can be conducted by cooperating with the hose, the internal noise and vibration are not easily conducted out of the hose, and the convenience of using the water pump is improved.

[0025] In summary, the present application has at least one of the following beneficial technical effects:

[0026] 1. The liquid is sucked into the inlet pipe and discharged from the outlet pipe. When the liquid flows into the outlet pipe, the liquid is injected into the pressure chamber at the same time, so as to push the plurality of support seats to move upward, and because the pressure is consistent, the water pump can be kept horizontal; the liquid flows into the soft liquid discharge ring through the overflow ring gap, and then is discharged into the liquid inlet pipe, so as to complete the circulation of the liquid. By using such design, the vibration of the water pump can be buffered by the high-pressure liquid in the pressure chamber, so as to not only balance the vibration of the water pump and reduce the vibration of the water pump, but also reduce the conduction of the vibration of the water pump, and the horizontal shaking can be slowed down through the overflow ring gap, so as to better improve the stability of the water pump and improve the use experience of the water pump;

[0027] 2. The support seat with the gradually decreasing outer diameter close to the balance seat can reduce the size of the overflow ring gap when the support seat moves close to the balance seat during the vibration of the water pump, so as to increase the pressure of the pressure chamber, so as to quickly drive the support seat to reset, ensure that the water pump can be better kept horizontal and fixed, so that the outlet pipe can be better accurately aligned with the connecting pipeline, reduce the water resistance, and improve the stability of the water pump;

[0028] 3. By cooperating the sliding ring with the plurality of liquid outlets, in the normal state, the sliding ring blocks part of the liquid outlets, when the vibration amplitude is large, the support seat moves downward, so as to reduce the number of liquid outlets blocked by the sliding ring, so as to increase the liquid pressure in the pressure chamber, so as to drive the support seat to reset, when the support seat moves upward, the number of liquid outlets blocked by the sliding ring is increased, so as to reduce the liquid pressure in the pressure chamber, so as to make the support seat reset downward, which can better ensure the timely reset of the water pump and improve the stability of the water pump BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a structure schematic view of a low-noise water pump system of an embodiment of the present application.

[0030] Figure 2 is a bottom view of a low-noise water pump system of an embodiment of the present application.

[0031] Figure 3 is a cross-sectional view of an embodiment of the present application for highlighting the support seat and the balance seat.

[0032] 1, sound shield; 2, centrifugal pump; 3, water inlet pipe; 4, liquid outlet main pipe; 5, hose; 6, rotating switch; 7, base; 8, liquid inlet branch pipe; 9, adjusting seat; 10, clamping ring; 11, liquid inlet main pipe; 12, sound insulation sleeve; 13, water outlet pipe; 14, porous check valve; 15, passive damper; 16, liquid outlet pipe; 17, balance seat; 18, dovetail block; 19, soft liquid outlet ring; 20, liquid injection hole; 21, compression spring; 22, support seat; 23, overflow ring gap; 24, pressure cavity; 25, sliding ring; 26, flow limiting pipe; 27, liquid outlet; 28, connecting spring; 29, communication pipe. DETAILED DESCRIPTION

[0033] The following description will be made in conjunction with the accompanying drawings Figures 1-3 The application is further described in detail.

[0034] The embodiment of the application discloses a low-noise water pump system.

[0035] Embodiment 1

[0036] Reference Figure 1 and Figure 2 A low-noise water pump system, comprising a base 7, a water inlet pipe 3, a water outlet pipe 13, three communication pipes 29 for connecting the water inlet pipe 3 and the water outlet pipe 13 and a water pumping device on the communication pipes 29; the water inlet pipe 3 and the water outlet pipe 13 are in the shape of a uniform circle, the water inlet pipe 3 and the water outlet pipe 13 are both fixed on the base 7, the axis of the water inlet pipe 3 and the axis of the water outlet pipe 13 are coplanar and parallel to each other, the sound insulation sleeve 12 is sleeved on the water inlet pipe 3 and the water outlet pipe 13, and the sound insulation sleeve 12 is fixed by being covered with sound insulation damping felt. The connecting pipe is in the shape of a circle, and the axis thereof is perpendicular to the axis direction of the water inlet pipe 3, the water inlet pipe 3 and the water outlet pipe 13 are integrally formed with a plurality of cold-drawn guide pipes for fixing the three communication pipes 29, the cold-drawn guide pipes are processed and manufactured by using a cold-drawing technology, so that the cold-drawn guide pipes are in the shape of an arc, the resistance of liquid flow is reduced, and the lift of the water pump is improved. The water pumping device is a centrifugal pump 2, the rotation of the centrifugal pump 2 drives water to flow into the water inlet pipe 3 and flow out of the water outlet pipe 13. The outlet of the water outlet pipe 13 and the inlet of the water inlet pipe 3 are both fixedly connected with a hose 5, the hose 5 is made of corrosion-resistant vibration isolation rubber material, and in order to meet the vibration isolation requirement, the length of the hose 5 can be increased, so that the vibration isolation effect of the hose 5 is ensured.

[0037] The system further comprises a plurality of balancing devices fixed to the base 7 for ensuring the horizontal position of the water pump and reducing the swing of the water pump. The balancing device comprises a balancing seat 17 and a support seat 22 fixed to the base 7, the support seat 22 is in the shape of a circular truncated cone, the outer diameter of which gradually decreases in the direction close to the balancing seat 17, the balancing seat 17 is in the shape of a U-shaped section, the support seat 22 is inserted into the balancing seat 17, and a pressure cavity 24 is formed between the support seat 22 and the balancing seat 17, the pressure cavity 24 is in the shape of a circular ring, an overflow ring gap 23 is formed between the support seat 22 and the balancing seat 17, the overflow ring gap 23 is in the shape of a circular ring, a soft liquid discharge ring 19 is fixedly connected between the support seat 22 and the balancing seat 17, the liquid discharge ring is made of rubber material, and dovetail blocks 18 are integrally formed at both ends of the liquid discharge ring, dovetail grooves are formed in the support seat 22 and the balancing seat 17 and are matched with the dovetail blocks 18, the dovetail blocks 18 are clamped in the dovetail grooves and are fixed by sealing glue. A chamber is formed in the liquid discharge ring and is communicated with the overflow ring gap 23, a liquid discharge pipe 16 is integrally formed on the liquid discharge ring, and a liquid discharge main pipe 4 is fixed to the liquid inlet pipe; the support seat 22 is provided with a liquid injection hole 20 communicated with the pressure cavity 24 along the axial direction of the support seat 22, the liquid injection hole 20 is in the shape of a cylinder, a liquid inlet branch pipe 8 is fixedly connected to the liquid injection hole 20, a liquid inlet main pipe 11 is fixedly connected to the water outlet pipe 13, and the plurality of liquid inlet branch pipes 8 are communicated with the liquid inlet main pipe 11.

[0038] A flow limiting pipe 26 is fixedly connected to the liquid injection hole 20 at the bottom of the support seat 22, a plurality of liquid outlets 27 are formed in the outer wall of the flow limiting pipe 26, the liquid outlets 27 are in the shape of a cylinder, a sliding ring 25 is sleeved on the flow limiting pipe 26, the sliding ring 25 is used to close part of the liquid outlets 27, a connecting spring 28 is fixedly connected to the bottom of the pressure cavity 24, and the top of the connecting spring 28 is fixedly connected with the sliding ring 25. The connecting spring 28 connects the sliding ring 25, which not only drives the sliding ring 25 to move, but also reduces the limitation of the support seat 22 when the support seat 22 moves, improves the flexibility of the support seat 22, reduces the damage to the flow limiting pipe 26 when the water pump vibrates, and reduces the damage to the flow limiting pipe 26 when the water pump vibrates. When the support seat 22 moves away from the balancing seat 17, the sliding ring 25 moves downward and increases the number of liquid outlets 27, reduces the flow of water in the pressure cavity 24, and reduces the pressure acting on the limiting ring, so as to drive the support seat 22 to quickly reset. When the support seat 22 moves close to the balancing seat 17, the sliding ring 25 moves upward and reduces the number of closed liquid outlets 27, thereby increasing the water pressure in the pressure cavity 24 and increasing the pressure acting on the support seat 22, thereby driving the support seat 22 to reset. Such design can ensure the levelness of the water pump and improve the stability of the water pump.

[0039] A compression spring 21 is installed at the bottom of the support seat 22, the upper and lower ends of the compression spring 21 abut against the bottom of the support seat 22 and the bottom of the pressure cavity 24 respectively, and the flow limiting pipe 26 is fixed at the middle position of the compression spring 21 and is used to limit the movement of the compression spring 21.

[0040] The flange sheet is fixed at the opening of the outlet pipe 13, and the outlet pipe 13 is connected with the hose 5 through the flange sheet. The porous check valve 14 is installed between the outlet pipe 13 and the hose 5, which can prevent the backflow of liquid, and the use of the porous check valve 14 can reduce the water pressure required to open the outlet pipe 13. According to different flow rates, the adaptive opening and flow matching channel can reduce the hydraulic resistance of the valve, and ensure the lift of the water pump.

[0041] The height adjusting device for adjusting the height of the inlet pipe 3 and the outlet pipe 13 is fixed on the upper side of the base 7. The height adjusting device includes an adjusting seat 9 fixed on the base 7. The adjusting seat 9 is arc-shaped, and the two ends of the adjusting seat 9 are bolted to the base 7. The inlet pipe 3 or the inlet pipe 3 is placed on the adjusting seat 9. The upper side of the adjusting seat 9 is arc-shaped to match the cylindrical surface of the inlet pipe 3 or the inlet pipe 3. When installing the adjusting seat 9, the outlet of the inlet pipe 3 is aligned with the connected pipeline by selecting an appropriate height of the adjusting seat 9, so as to meet the requirement of adjusting the height of the inlet pipe 3. The clamping ring 10 is inserted into the adjusting seat 9. The clamping ring 10 is U-shaped, and clamps the inlet pipe 3 or the inlet pipe 3 and is inserted into the adjusting seat 9, and is locked by a nut.

[0042] The damping device is fixed on the bottom of the base 7, which is used to reduce the vibration of the water pump. The damping device includes a passive damper 15. The passive damper 15 can be selected from an oil / gas pressure damper, an inflatable damper and a spring damper. The use of the passive damper 15 can support the water pump and relieve vibration, improve the stability of the water pump and reduce noise.

[0043] The system also includes a noise reduction device for reducing the noise generated by the water pump. The noise reduction device includes a soundproof cover 1 composed of an external metal shell and an internal sound absorbing material. The soundproof cover 1 is rectangular, and the entire water pump is covered by the soundproof cover 1, thereby reducing the transmission of water pump noise. The hose 5 on the inlet pipe 3 and the outlet pipe 13 penetrates the soundproof cover 1 and is connected with the external pipeline. The vibration isolation rubber material contacts the soundproof cover 1, thereby reducing the transmission of internal noise. The rubber material is soft, which can reduce the vibration of the soundproof cover 1 when the water pump shakes, and ensure the stability of the soundproof cover 1.

[0044] The implementation principle of the embodiment is that when the water pump works, mechanical energy is converted into potential energy of water by the centrifugal pump 2, so as to drive the water to flow into the inlet pipe and flow out of the outlet pipe 13, under the action of the passive damper 15, the vibration of the water pump is reduced, and the generation of noise is reduced, and then the sound shield cover 1 is matched to reduce the propagation of sound, reduce the influence on the people near the water pump, improve the convenience of using the water pump, and ensure the use effect of the water pump; when the centrifugal pump 2 transports liquid, the liquid pressure in the outlet pipe 13 is much greater than the liquid pressure in the inlet pipe, so that the liquid in the inlet pipe is input into the pressure chamber 24, under the pressure of the liquid, the support seat 22 is driven away from the balance seat 17, so as to support the water pump, on the one hand, because the liquid pressure in each pressure chamber 24 is the same, the water pump can be placed horizontally to improve the stability of using the water pump, and the outlet of the outlet pipe 13 can be better aligned with the pipeline to be connected, on the other hand, the bottom and the periphery of the support seat 22 are respectively supported without contact with the balance seat 17, so that when the support seat 22 vibrates, the vibration is first transmitted to the liquid in the pressure chamber 24, thereby reducing the transmission of vibration, improving the stability of using the water pump, reducing the noise caused by vibration, reducing the influence on the surrounding people, and improving the comfort of using the water pump.

[0045] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A low-noise water pump system, characterized in that: The system includes an inlet pipe (3) and an outlet pipe (13), and a pumping device is provided between the inlet pipe (3) and the outlet pipe (13). The pumping device is used to transport liquid in the inlet pipe (3) and the outlet pipe (13). The system also includes a balancing device for reducing pump vibration: the balancing device includes a support base (22) and a balancing base (17), a pressure chamber (24) is formed between the support base (22) and the balancing base (17), an overflow annular gap (23) is formed between the balancing base (17) and the support base (22), a soft drain ring (19) is provided between the support base (22) and the balancing base (17), the overflow annular gap (23) is connected to the soft drain ring (19), the soft drain ring (19) is connected to the outlet pipe (13), and the outlet pipe (13) is connected to the pressure chamber (24). The outer diameter of the support base (22) gradually decreases in the direction close to the balance base (17); The support base (22) has an injection hole (20) communicating with the pressure chamber (24). An inlet branch pipe (8) is provided on the injection hole (20), and a main inlet pipe (11) is provided on the outlet pipe (13). Multiple inlet branch pipes (8) are connected to the main inlet pipe (11). A flow-limiting pipe (26) communicating with the injection hole (20) is provided at the bottom of the support base (22). Multiple outlet ports (27) are provided on the outer wall of the flow-limiting pipe (26), and a sliding ring is fitted onto the flow-limiting pipe (26). 25), the sliding ring (25) is used to close part of the liquid outlet (27), the bottom of the pressure chamber (24) is provided with a connecting spring (28), the connecting spring (28) is fixedly connected to the sliding ring (25), when the support seat (22) moves away from the balance seat (17), the sliding ring (25) moves down and increases the number of liquid outlets (27) closed, when the support seat (22) moves closer to the balance seat (17), the sliding ring (25) moves up and decreases the number of liquid outlets (27) closed; A compression spring (21) is provided at the bottom of the support base (22), and the two ends of the compression spring (21) abut against the bottom of the support base (22) and the bottom of the pressure chamber (24), respectively.

2. The low-noise water pump system according to claim 1, characterized in that: The system also includes a base (7) for fixing the inlet pipe (3) and the outlet pipe (13) and a height adjustment device. The height adjustment device includes a plurality of adjustment seats (9) fixed on the base (7). The adjustment seats (9) are provided with clamping rings (10) for clamping the inlet pipe (3) or the outlet pipe (13).

3. A low-noise water pump system according to claim 2, characterized in that: The pumping device is a centrifugal pump (2). Multiple connecting pipes (29) are connected between the inlet pipe (3) and the outlet pipe (13). The centrifugal pump (2) is installed on the connecting pipe (29). Multiple cold-drawn conduits are integrally formed on both the inlet pipe (3) and the outlet pipe (13) and are fixedly connected to the multiple connecting pipes (29).

4. A low-noise water pump system according to claim 1, characterized in that: Both the inlet pipe (3) and the outlet pipe (13) are fitted with soundproof sleeves (12).

5. A low-noise water pump system according to claim 1, characterized in that: A flexible hose (5) is installed on the water outlet pipe (13).

6. A low-noise water pump system according to claim 5, characterized in that: The system also includes a sound insulation device, which includes a soundproof cover (1) for sound insulation, and the flexible hose (5) is disposed through the soundproof cover (1).

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