CN211255362U - Purifier that noise reduction effect is good - Google Patents

Abstract

The utility model relates to a purifier that noise reduction effect is good, including the casing, establish the reverse osmosis filter core in the casing, fall the component of making an uproar and have the booster pump of pump head, the upstream of reverse osmosis filter core is located to the booster pump, and the both ends of falling the component of making an uproar are equipped with water inlet and delivery port respectively, the vertical setting of booster pump and pump head are located the upper end, fall the component of making an uproar and be located the lower extreme at the vertical setting in low reaches of booster pump and water inlet to rely on rivers gravity to reduce the velocity of water flow, pipeline length. By adopting the technical scheme, the pulsation noise generated by air staying in the booster pump or the noise reduction element and impacting with water flow can be reduced, the water flow speed is reduced, stable water flow is formed, the length of a pipeline between the noise reduction element and the booster pump is shortened, and the vibration and the noise generated by impacting the pipeline by the pulsating water flow are further reduced.

Description

Purifier that noise reduction effect is good

Technical Field

The utility model relates to an element of making an uproar falls especially relates to a purifier that noise reduction effect is good.

Background

The existing water purifier is usually provided with a booster pump to boost tap water, so that the problem of insufficient tap water pressure in some places in the prior art is solved. However, the booster pump can form a pulsating water flow impact pipeline in the process of pumping water, so that when the water purifier works, the water purifier can generate large vibration to cause noise, and particularly when the water purifier works at night, the use experience of a user is influenced.

Through the analysis of the vibration noise source of the water purifier, the vibration noise mainly comes from the booster pump, and because tap water is mixed with air, when the water enters the booster cavity of the pump head, the air stays in the booster cavity and collides with water flow to impact so as to generate larger pulsation noise due to pressure change. Accordingly, it is desirable to minimize or avoid air entrapment within the plenum chamber to reduce noise generation.

In addition, a damper having a buffer space is provided downstream of the booster pump, and the water flow drives the elastic damping member therein to deform when flowing through the buffer space, so as to reduce vibration and noise. However, the damper in the prior art is usually horizontally disposed, as shown in fig. 1, when water is started to enter, water in the buffering space is continuously gathered, air at the upper part of the buffering space cannot be discharged in time due to relatively fast flow rate of the water flow, and the water flow entering the buffering space is mixed with the air and extruded to cause secondary noise.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the technical problem at least partially, providing a simple structure, purifier that noise reduction effect is good.

The utility model adopts the technical scheme as follows:

the utility model provides a purifier that noise reduction effect is good, includes the casing, establishes the reverse osmosis filter core in the casing, falls the component of making an uproar and has the booster pump of pump head, and the upstream of reverse osmosis filter core is located to the booster pump, and the both ends of falling the component of making an uproar are equipped with water inlet and delivery port respectively, the vertical setting of booster pump and pump head are located the upper end, fall the component of making an uproar and be located the lower extreme at the vertical setting in low reaches of booster pump and water inlet to rely on rivers gravity to reduce the water velocity.

Furthermore, be equipped with between booster pump and the reverse osmosis filter core fall the component of making an uproar.

Further, the reverse osmosis filter core is equipped with the water inlet, and the vertical setting of reverse osmosis filter core and water inlet are located the upper end.

Furthermore, the noise reduction element is sequentially provided with a water inlet cavity, a buffer cavity and a water outlet cavity, and the sectional area of the buffer cavity is larger than that of the water inlet cavity and that of the water outlet cavity.

Furthermore, the inner wall of the water inlet cavity and/or the water outlet cavity is provided with a spiral rib.

Furthermore, the ratio of the diameter of the water inlet cavity and/or the water outlet cavity to the height of the spiral ribs ranges from 5 to 10.

Furthermore, the buffer cavity comprises a hollow cavity and a water passing cavity, and the hollow cavity is arranged on the periphery of the water passing cavity.

Furthermore, the buffer device comprises an elastic body which is arranged in the buffer cavity so that a hollow cavity is formed between the periphery of the elastic body and the inner wall of the shell.

Furthermore, the reverse osmosis filter core still is equipped with the waste water mouth, the waste water mouth has connect the waste water valve, the low reaches of waste water valve is equipped with the component of making an uproar falls.

Further, the purifier is still including having the pump case that holds the chamber, the pump case is fixed with the casing, two relative inner wall centre grippings of pump case the booster pump is followed its axial both ends and is fixed the booster pump and hold the intracavity, just the both ends of booster pump with be equipped with the damping pad between the inner wall of pump case respectively.

Adopt above-mentioned technical scheme's beneficial effect to include:

1) in this embodiment, on the one hand, through setting up the pump head upwards for the air that density is less than water can be along with rivers together discharge the booster chamber from the upper portion in pump water pressurization process, for the horizontal mounting means of placing of booster pump and pump head under, the air that reduces is resident and is produced the pulsation noise with rivers impact in first cavity or second cavity. Moreover, the play water rubber valve in the pump head is owing to receive the gravity of water and the pressure dual function of water, and the sealed of the water rubber valve of utilization to the apopore that can be better is compared in the mode that the level was placed and the pump head is put down, and sealed effect is better. On the other hand, air is still mixed in the high-pressure high-speed water flow generated after the water flows pass through the booster pump, and vibration noise is still generated by pulsation impact in a subsequent pipeline, so that a noise reduction element is further arranged at the downstream of the booster pump and is vertically arranged to feed water from a water purification port at the lower end to a water outlet at the upper end, the high-pressure high-speed water flow from the booster pump enters the noise reduction element, the water flow entering the noise reduction element in pulsation at each time is decelerated and accumulated under the action of gravity, and the water flow generated by multiple times of pulsation flows out of the noise reduction element after being filled in the buffer cavity, so that the water flow speed is reduced, the stable water flow is formed, and vibration and noise generated by pulsation water flow. In addition, in the water inlet process, along with the continuous entering of water flow into the noise reduction element, due to the fact that the air density is low, the air in the buffer cavity is extruded, the volume of the air is reduced continuously, the air moves towards the water outlet direction and is discharged through the water outlet, and the noise generated by the mixing of the air in the buffer cavity and the water flow in the water inlet process is reduced to a certain extent. In addition, based on the principle of reverse osmosis water purification, tap water can be pushed to permeate through the selective membrane by pressure higher than osmotic pressure, the flow rate of water flow is remarkably reduced in the permeation process, and the pulsation effect of pulsating water flow is remarkably weakened. Therefore, in order to further improve the noise reduction effect, the length of the pipeline between the noise reduction element and the booster pump needs to be shortened, specifically, the length of the pipeline between the booster pump and the reverse osmosis filter element is not more than 30cm, so that the pulsation of the high-pressure water flow flowing out of the booster pump can be reduced as soon as possible.

2) Because the high-pressure water flow pulsation after being pressurized by the booster pump is most obvious, especially on a pipeline between the booster pump and the reverse osmosis filter element, the vibration noise in the section of the pipeline can be effectively reduced by arranging the noise reduction element between the booster pump and the reverse osmosis filter element.

3) Through putting on the water inlet with the reverse osmosis filter core, can not only reduce the pipeline bending between the water inlet of booster pump outlet and reverse osmosis filter core, guarantee that rivers are stable, smooth and easy, can also effectually shorten the pipeline length between the water inlet of booster pump outlet and reverse osmosis filter core, reduce the possibility that the pulsation rivers impact the pipeline and produce the noise, can also reduce the loss of pressure in the pipeline simultaneously. And, still set up the pump head into the water inlet that is less than the reverse osmosis filter core for from up pumping down, further rely on the gravity of water to slow down.

4) The sectional area of the buffer cavity is set to be larger than that of the water inlet cavity, so that the flow speed of the pulsating water flow is reduced after the pulsating water flow enters the buffer cavity, the impact vibration noise of the pulsating water flow and a pipeline is further reduced, and the effect of stabilizing the water flow is achieved; the sectional area of the buffer cavity is set to be larger than that of the water outlet cavity, so that the stabilized water flow can be discharged out of the noise reduction element after being accelerated again.

5) Through establishing the spiral muscle on the inner wall at intake antrum and/or play water cavity for the high-pressure pulsating flow that flows in the booster pump receives the water conservancy diversion effect of spiral water conservancy diversion muscle when passing through the intake antrum, the rivers that press close to the chamber wall flow along the screw direction at first, and then the drive is kept away from the rivers that the wall is close to the center axis position promptly and is formed stable flow along the screw direction together, when rivers reachd the juncture of intake antrum and cushion chamber, rivers are the helical flow under the inertial action still, nevertheless because cavity cross sectional area grow, booster pump flow is certain, therefore the rivers velocity of flow further slows down. Specifically, still will the diameter of intake antrum and/or play water cavity and the high ratio range of spiral muscle are 5 ~ 10, stable rivers of formation that can be better, reduce vibration noise. If the ratio is greater than 10, the spiral flow guiding effect of the spiral ribs is obviously reduced, stable water flow cannot be formed, and the effect of the spiral ribs is not beneficial to the condition that the spiral ribs are not arranged; if the ratio is less than 5, the height of the spiral rib is too high, so that the pulsating high-pressure water flow is blocked by the spiral rib to receive a large impact force, and the vibration during the impact is increased.

6) Through the periphery in crossing the water cavity sets up well cavity, make well cavity formation puigging and will cross the water cavity cladding wherein, the vibration noise of pulsation rivers impact water cavity inner wall forms the reflection or diffraction of making a round trip in well cavity and offsets, reduces the outside transmission of vibration noise. Specifically, still set up the elastomer in the cushion chamber so that form well cavity between its periphery and the shells inner wall for the pulsating water flow that has pressure drives the elastomer after getting into the cushion chamber, and the elastomer takes place to warp and forms the one-level buffering, offsets the vibration that produces when pulsating water flow strikes the elastomer, further noise reduction.

7) Due to the throttling function of the waste water valve, the waste water at the downstream of the waste water valve flows fast and collides with air to form noise. By disposing it downstream of the waste water valve, noise generated when waste water is discharged can be reduced.

8) Through setting up the booster pump in the pump case, can pass through the transmission of the noise that the pump case separation booster pump produced, the transmission of separation vibrations, and then play the effect of making an uproar. Moreover, the pump shell is only fixed at two ends of the booster pump, and a gap is formed between the side wall of the booster pump and the pump shell, so that the booster pump can be further prevented from transmitting vibration and noise to the pump shell. Especially the utility model provides a pump case is fixed the both ends of booster pump, can effectually restrain the booster pump in its ascending vibrations of axial, compare in single-ended fixed booster pump for the fixed moment that the pump case was applyed to the booster pump is great, still can effectually restrain the booster pump in radial ascending vibration, need not to set up connection structure on the booster pump moreover, for example, need not to set up structural component such as flange seat on the booster pump, thereby makes the installation of whole purifier more convenient.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.

FIG. 1 is a schematic cross-sectional view illustrating a state of water inflow when a noise reduction element is horizontally disposed in the prior art;

fig. 2 is a schematic sectional view of a pump head of a booster pump according to a first embodiment of the present invention in a water inlet state;

fig. 3 is a schematic structural view of a water purifier according to a first embodiment of the present invention;

FIG. 4 is a schematic view of an assembly structure of a booster pump and a noise reduction element according to a first embodiment of the present invention;

FIG. 5 is a partial enlarged view of portion A of FIG. 4;

fig. 6 is a schematic cross-sectional view of a noise reduction element according to a first embodiment of the present invention;

fig. 7 is a schematic structural diagram of a pump casing according to a first embodiment of the present invention;

fig. 8 is a schematic sectional view of a pump casing according to a first embodiment of the present invention;

fig. 9 is a schematic cross-sectional view of a noise reduction element according to a second embodiment of the present invention;

FIG. 10 is a partial enlarged view of portion B of FIG. 9;

fig. 11 is a schematic view of a partial cross-sectional structure of a buffer section of a noise reduction element according to a second embodiment of the present invention;

fig. 12 is a schematic cross-sectional view of a noise reduction element according to a third embodiment of the present invention;

fig. 13 is a partially enlarged view of a portion C in fig. 12.

Detailed Description

The technical solution in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

It is to be understood that the described embodiments are merely some embodiments and not all embodiments of the present application, and that the following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application and its applications.

As shown in fig. 1-8, the present embodiment provides a water purifier, the water purifier includes a casing 100, a booster pump 200 and a reverse osmosis filter 300 are disposed in the casing, the booster pump 200 includes a motor 210 and a pump head 220, the booster pump 200 and the reverse osmosis filter 300 are simultaneously and fixedly mounted on the bottom surface of the casing 100, the booster pump 200 and the reverse osmosis filter 300 located at the downstream are connected by a pipeline, the booster pump 200 is vertically disposed, and the pump head 220 is located at the upper end. The pump head 220 of the booster pump 200 comprises an end cover 221, a valve cover 222, a diaphragm 223, a piston pusher 224 and a balance wheel assembly (not shown in the figure), a first cavity 226 and a second cavity 227 are formed among the diaphragm 223, the valve cover 222 and the end cover 221 in a matching manner, a water outlet rubber valve 225 is arranged on the valve cover 222, and the motor 210 drives the balance wheel assembly to reciprocate so as to pump water through the first cavity 226 and the second cavity 227 in sequence for pressurization. Still be equipped with the outlet on the pump head 220 of booster pump 200, the outlet passes through the tube coupling with the water inlet (not shown) of reverse osmosis filter core 300, is connected with noise reduction element 400 on the pipeline between outlet and the infiltration filter core, noise reduction element 400 includes casing 480, casing 480 both ends are equipped with water inlet 410 and delivery port 460 respectively, and noise reduction element 400 is vertical to be set up and water inlet 410 is located the lower extreme and is intake in order from the bottom to the top.

In this embodiment, on the one hand, through setting up the pump head upwards for the air that density is less than water can be along with rivers together discharge the booster chamber from the upper portion in pump water pressurization process, for the horizontal mounting means of placing of booster pump and pump head under, the air that reduces is resident and is produced the pulsation noise with rivers impact in first cavity or second cavity. Moreover, the play water rubber valve in the pump head is owing to receive the gravity of water and the pressure dual function of water, and the sealed of the water rubber valve of utilization to the apopore that can be better is compared in the mode that the level was placed and the pump head is put down, and sealed effect is better. On the other hand, air is still mixed in the high-pressure high-speed water flow generated after the water flows pass through the booster pump, and vibration noise is still generated by pulsation impact in a subsequent pipeline, so that a noise reduction element is further arranged at the downstream of the booster pump and is vertically arranged to feed water from a water purification port at the lower end to a water outlet at the upper end, the high-pressure high-speed water flow from the booster pump enters the noise reduction element, the water flow entering the noise reduction element in pulsation at each time is decelerated and accumulated under the action of gravity, and the water flow generated by multiple times of pulsation flows out of the noise reduction element after being filled in the buffer cavity, so that the water flow speed is reduced, the stable water flow is formed, and vibration and noise generated by pulsation water flow. In addition, in the water inlet process, along with the continuous entering of rivers and the component of making an uproar falls, because air density is little, the air in the buffer chamber receives the extrusion and the volume constantly reduces and to the delivery port direction removal and through the delivery port discharge, reduces the air in the buffer chamber in the water inlet process and rivers and mix the noise that produces to a certain extent.

It will be appreciated that in an actual installation process, the noise reduction elements may not be guaranteed to be absolutely vertically disposed. In this embodiment, an included angle between the noise reduction element and an axis perpendicular to the horizontal plane is within 30 degrees, which is within the protection scope of the present technical solution.

In this embodiment, the noise reduction element 400 is disposed between the booster pump 200 and the reverse osmosis filter 300.

Because the high-pressure water flow pulsation after being pressurized by the booster pump is most obvious, especially on a pipeline between the booster pump and the reverse osmosis filter element, the vibration noise in the section of the pipeline can be effectively reduced by arranging the noise reduction element between the booster pump and the reverse osmosis filter element.

Based on the principle of reverse osmosis water purification, tap water can be pushed to permeate through the selective membrane by the pressure higher than osmotic pressure, the flow speed of the water flow is obviously reduced in the permeation process, and the pulsation influence of the pulsating water flow is obviously weakened. Therefore, in order to further enhance the noise reduction effect, the length of the pipeline between the noise reduction element and the booster pump needs to be shortened so as to reduce the pulsation of the high-pressure water flow from the booster pump as soon as possible. Preferably, the length of a pipeline between the booster pump and the reverse osmosis filter element is not more than 30 cm.

In order to further improve the noise reduction effect, the length of the pipeline between the noise reduction element and the booster pump needs to be shortened so as to reduce the pulsation of the high-pressure water flow from the booster pump as soon as possible. Optionally, the distance between the water inlet of the noise reduction element and the water outlet of the booster pump is not more than 15 cm. Preferably, the water inlet end of the noise reduction element is directly butted with the water outlet of the booster pump through an adapter.

Further, as shown in fig. 3, 4 and 5, the reverse osmosis filter element 300 is provided with a water inlet 310, the reverse osmosis filter element 300 is vertically arranged, the water inlet 310 is located at the upper end, and the water outlet 230 of the booster pump 200 is connected with the water inlet 310 of the reverse osmosis filter element 300 through a pipeline. Specifically, the pump head 220 of the booster pump 200 is lower than the water inlet 310 of the reverse osmosis filter element 300.

Through putting on the water inlet with the reverse osmosis filter core, can not only reduce the pipeline bending between the water inlet of booster pump outlet and reverse osmosis filter core, guarantee that rivers are stable, smooth and easy, can also effectually shorten the pipeline length between the water inlet of booster pump outlet and reverse osmosis filter core, reduce the possibility that the pulsation rivers impact the pipeline and produce the noise, can also reduce the loss of pressure in the pipeline simultaneously. And, still set up the pump head into the water inlet that is less than the reverse osmosis filter core for from up pumping down, further rely on the gravity of water to slow down.

Further, as shown in fig. 6, a buffer chamber 430 is provided in the noise reduction element, and an elastic body 440 is provided in the buffer chamber 430. Preferably, a cavity is formed in the elastic body 440.

Through set up the elastomer in the amortization cushion chamber, the elastomer is extruded and takes place elastic deformation when the impact elastomer of high pressure rivers pulsation to further slow down the rivers of pulse, with this stable rivers and noise reduction. Particularly, a hollow cavity is arranged in the elastic body, and the hollow cavity can adapt to pulsating water flow impact in a larger range.

Further, as shown in fig. 6, the housing 480 is further provided with an inlet chamber 420 and an outlet chamber 450 at two ends of the buffer chamber 430, and the sectional area of the buffer chamber 430 is larger than the sectional areas of the inlet chamber 420 and the outlet chamber 450.

The sectional area of the buffer cavity is set to be larger than that of the water inlet cavity, so that the flow speed of the pulsating water flow is reduced after the pulsating water flow enters the buffer cavity, the impact vibration noise of the pulsating water flow and a pipeline is further reduced, and the effect of stabilizing the water flow is achieved; the sectional area of the buffer cavity is set to be larger than that of the water outlet cavity, so that the stabilized water flow can be discharged out of the noise reduction element after being accelerated again.

Further, the purifier still includes pump case 500 that has the chamber of holding, pump case 500 is fixed with casing 100, two relative inner wall centre grippings of pump case 500 the booster pump is in order to fix the booster pump in holding the intracavity, just the both ends of booster pump with be equipped with damping pad (not shown in the figure) respectively between the inner wall of pump case. Specifically, the pump case 500 includes an upper case 510 and a lower case 520, two opposite inner walls of the upper case 510 and the lower case 520 are respectively provided with a first annular isolation rib 511 and a second annular isolation rib 521, the vibration damping pads are respectively arranged in the region surrounded by the first isolation rib 511 and the second isolation rib 521, and the first isolation rib 511, the second isolation rib 521 and the inner walls cover and fix two ends of the water purification pump together.

Through setting up the booster pump in the pump case, can pass through the transmission of the noise that the pump case separation booster pump produced, the transmission of separation vibrations, and then play the effect of making an uproar. Moreover, the pump shell is only fixed at two ends of the booster pump, and a gap is formed between the side wall of the booster pump and the pump shell, so that the booster pump can be further prevented from transmitting vibration and noise to the pump shell. Especially the utility model provides a pump case is fixed the both ends of booster pump, can effectually restrain the booster pump in its ascending vibrations of axial, compare in single-ended fixed booster pump for the fixed moment that the pump case was applyed to the booster pump is great, still can effectually restrain the booster pump in radial ascending vibration, need not to set up connection structure on the booster pump moreover, for example, need not to set up structural component such as flange seat on the booster pump, thereby makes the installation of whole purifier more convenient.

Further, the reverse osmosis filter element 300 is further provided with a waste water port (not shown in the figure), the waste water port is connected with a waste water valve (not shown in the figure), and the downstream of the waste water valve is provided with the noise reduction element 400.

Due to the throttling function of the waste water valve, the waste water at the downstream of the waste water valve flows fast and collides with air to form noise. By disposing it downstream of the waste water valve, noise generated when waste water is discharged can be reduced.

Example two:

as shown in fig. 9, 10 and 11, the present embodiment is different from the first embodiment in that: the buffer chamber 430 comprises a hollow chamber 431 and a water passing chamber 432, and the hollow chamber 431 is arranged at the periphery of the water passing chamber 432. Specifically, the housing 480 of the noise reduction element 400 corresponding to the water inlet chamber 420, the buffer chamber 430 and the water outlet chamber 450 is provided with a water inlet 481 section, a buffer section 482 and a water outlet section 483. Specifically, the buffer section 482 includes an inner shell 482a and an outer shell 482b, the inner shell 482a has the water passing cavity 432, the hollow cavity 431 is formed between the inner shell 482a and the outer shell 482b, and the hollow cavity 431 is annularly arranged on the periphery of the water passing cavity 432.

Through the periphery in crossing the water cavity sets up well cavity, make well cavity formation puigging and will cross the water cavity cladding wherein, the vibration noise of pulsation rivers impact water cavity inner wall forms the reflection or diffraction of making a round trip in well cavity and offsets, reduces the outside transmission of vibration noise.

Further, the noise reduction element 400 further includes an elastic body disposed in the buffer cavity to form a hollow cavity 431 between the outer circumference of the elastic body and the inner wall of the housing. That is, the inner housing 482a in this embodiment is the elastic body, and may be made of silicon rubber or other materials.

The pulsating water flow with pressure enters the buffer cavity to drive the elastic body, the elastic body deforms to form primary buffer, vibration generated when the pulsating water flow impacts the elastic body is counteracted, and noise is further reduced.

Further, a support rib for supporting the elastic body is arranged on the inner wall of the housing in the hollow cavity 431. Specifically, the inner wall of the housing 482b is provided with a support rib 482c protruding inwards.

Therefore, the elastic body is uniformly stressed in the silencing cavity and is kept stable when being impacted by pulsating water flow.

Preferably, the hollow cavity 431 is hermetically disposed.

Through the sealed setting with well cavity for when the pulsating water flow assaulted the elastomer, thereby the elastomer warp the interior air of extrusion cavity in back and form the second grade buffering. If the hollow cavity is communicated with the outside, secondary buffering is difficult to realize.

Further, a flow distribution plate 470 is further arranged on the water passing cavity 432, and a circular through hole is formed in the flow distribution plate.

The circular through holes on the flow distribution plate form small-hole acoustical panel, water flow is further divided into a plurality of stable flows after passing through the circular small holes on the middle-cavity flow distribution plate, the water flow gradually tends to be stable in the process of passing through the spiral ribs and the small-hole acoustical panel, and phenomena such as reflection, interference and the like are generated due to acoustic impedance change caused by the change of the cross section in the pipeline, so that water flow fluctuation and noise are obviously reduced.

Example three:

as shown in fig. 12 and 13, the present embodiment is different from the first and second embodiments in that: the inner wall of the water inlet cavity 420 and/or the water outlet cavity 450 is provided with a spiral rib 421.

The high-pressure fluctuation rivers that flow out in the booster pump pass through the intake antrum, and under the water conservancy diversion effect of spiral water conservancy diversion muscle, the rivers that press close to the chamber wall at first flow along the screw direction, and then drive and keep away from the wall and be close to the rivers of center axis position promptly and form stable flow along the screw direction together. When the water flow reaches the junction of the water inlet cavity and the buffer cavity, the water flow still flows spirally under the inertia effect, but the flow rate of the booster pump is constant due to the fact that the cross section area of the cavity is increased, and the flow rate of the water flow is further reduced.

By arranging the spiral ribs on the inner wall of the water inlet cavity and/or the water outlet cavity, the pulsating high-pressure water flow forms stable water flow under the rotating flow guiding action of the spiral ribs, and meanwhile, the impact force of the high-pressure fluctuating water flow on the wall surface of the inner channel of the upper cavity and the lower cavity is reduced, so that the vibration and the noise are reduced.

Furthermore, the ratio of the inner diameter D1 of the water inlet cavity 420 and/or the water outlet cavity 450 to the height H1 of the spiral rib 421 is 5-10.

If the ratio is greater than 10, the spiral flow guiding effect of the spiral ribs is obviously reduced, stable water flow cannot be formed, and the effect of the spiral ribs is not beneficial to the condition that the spiral ribs are not arranged; if the ratio is less than 5, the height of the spiral rib is too high, so that the pulsating high-pressure water flow is blocked by the spiral rib to receive a large impact force, and the vibration during the impact is increased. Through being 5 ~ 10 with this ratio range limit, rivers are stabilized in formation that can be better, reduce vibration noise.

Further, the spiral angle range of the spiral rib 421 is 30 to 45 degrees.

Under the condition that the height of the flow guiding ribs is fixed, the larger the spiral angle of the spiral ribs is, the better the flow dividing effect is, but the larger the resistance applied when water flows through the spiral ribs is also caused. Therefore, the spiral angle range of the spiral ribs is 30-45 degrees, a good flow distribution effect can be guaranteed, and smooth passing of water flow can be guaranteed.

Furthermore, the inner walls of the water inlet chamber 420 and the water outlet chamber 450 are simultaneously provided with spiral ribs 421, and the spiral directions are the same.

The spiral ribs with the same rotating direction are arranged on the inner walls of the water inlet cavity and the water outlet cavity at the same time, so that water flow can be further stabilized, and the pulsating impact of the water flow on the pipe wall is reduced.

Preferably, the length of the spiral rib 421 is not greater than one pitch.

If the length of the spiral rib is larger than one screw pitch, the pulsating high-pressure water flow is blocked by the spiral rib for a long distance to be subjected to a larger impact force, and the vibration during the impact is increased.

In the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred devices or units must have a specific orientation, be constructed and operated in a specific orientation. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Claims (10)

1. The utility model provides a purifier that noise reduction effect is good, includes the casing, establishes the reverse osmosis filter core in the casing, falls the component of making an uproar and has the booster pump of pump head, and the upstream of reverse osmosis filter core is located to the booster pump, and the both ends of falling the component of making an uproar are equipped with water inlet and delivery port respectively, a serial communication port, the vertical setting of booster pump and pump head are located the upper end, fall the component of making an uproar and are located the lower extreme at the vertical setting in low reaches of booster pump and water inlet to rely on rivers gravity to reduce the velocity of.

2. The water purifier with good noise reduction effect according to claim 1, wherein the noise reduction element is arranged between the booster pump and the reverse osmosis filter element.

3. The water purifier with good noise reduction effect according to claim 1, wherein the reverse osmosis filter element is provided with a water inlet, the reverse osmosis filter element is vertically arranged, and the water inlet is positioned at the upper end.

4. The water purifier with good noise reduction effect according to claim 1, 2 or 3, wherein the noise reduction element is sequentially provided with a water inlet cavity, a buffer cavity and a water outlet cavity, and the sectional area of the buffer cavity is larger than that of the water inlet cavity and the water outlet cavity.

5. The water purifier with good noise reduction effect according to claim 4, wherein the inner wall of the water inlet cavity and/or the water outlet cavity is provided with spiral ribs.

6. The water purifier with the good noise reduction effect according to claim 4, wherein the ratio of the diameter of the water inlet cavity and/or the water outlet cavity to the height of the spiral ribs ranges from 5 to 10.

7. The water purifier with good noise reduction effect according to claim 4, wherein the buffer chamber comprises a hollow chamber and a water passing chamber, and the hollow chamber is arranged at the periphery of the water passing chamber.

8. The water purifier with good noise reduction effect according to claim 7, comprising an elastic body, wherein the elastic body is arranged in the buffer cavity to form a hollow cavity between the periphery of the elastic body and the inner wall of the shell.

9. The water purifier with good noise reduction effect according to claim 1, 2 or 3, wherein the reverse osmosis filter element is further provided with a waste water port, the waste water port is connected with a waste water valve, and the noise reduction element is arranged at the downstream of the waste water valve.

10. The water purifier with good noise reduction effect according to claim 1, 2 or 3, further comprising a pump shell with an accommodating cavity, wherein the pump shell is fixed with the machine shell, two opposite inner walls of the pump shell clamp two ends of the booster pump along the axial direction of the booster pump so as to fix the booster pump in the accommodating cavity, and damping pads are respectively arranged between two ends of the booster pump and the inner walls of the pump shell.

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