CN114413059A

CN114413059A - Choke valve and purifier

Info

Publication number: CN114413059A
Application number: CN202210064428.7A
Authority: CN
Inventors: 孙济鹏; 郑跃东; 周军; 汤诗槐
Original assignee: Foshan Midea Qinghu Water Purification Equipment Co ltd; Midea Group Co Ltd
Current assignee: Foshan Midea Qinghu Water Purification Equipment Co ltd; Midea Group Co Ltd
Priority date: 2022-01-19
Filing date: 2022-01-19
Publication date: 2022-04-29
Anticipated expiration: 2042-01-19
Also published as: CN114413059B

Abstract

The invention discloses a throttling valve and a water purifier, wherein a liquid flow passage of the throttling valve comprises a liquid inlet channel; a liquid outlet channel; the throttling channel is communicated with the liquid inlet channel and the liquid outlet channel and is provided with at least one shunting port and at least one confluence port, liquid is shunted into at least two paths of liquid at the shunting port, and the at least two paths of liquid are converged into one path of liquid at the confluence port. The anti-blocking effect of the throttle valve can be improved.

Description

Choke valve and purifier

Technical Field

The invention relates to the technical field of valves, in particular to a throttling valve and a water purifier.

Background

The throttle valve is widely applied to various gas fluid devices. Taking a water purifier as an example, a throttle valve (waste water valve) used by the water purifier is a core part of the operation process of a water system of the water purifier. In the related technology, a throttle valve (waste water valve) of the water purifier realizes the throttling effect at the waste water end of the whole water purifier through a small hole. However, throttling through small orifices can cause problems with the tendency of the valve body to clog, especially in areas where TDS (Total Dissolved Solids, also known as Total Dissolved Solids) is high.

Disclosure of Invention

The invention mainly aims to provide a throttle valve and aims to improve the anti-blocking effect of the throttle valve.

In order to achieve the above object, the present invention provides a throttle valve, wherein a liquid flow path of the throttle valve comprises:

a liquid inlet channel;

a liquid outlet channel; and

the throttling channel is communicated with the liquid inlet channel and the liquid outlet channel and provided with at least one shunting port and at least one confluence port, liquid is at the shunting port and is at least shunted into two paths of liquid, and the at least two paths of liquid are converged into one path of liquid at the confluence port.

In an embodiment, the throttling passage includes a first layer section and a second layer section which are arranged in a stacked manner, and a first conduction section which communicates the first layer section with the second layer section, the liquid inlet of the first layer section is communicated with the liquid inlet passage, and the liquid outlet of the second layer section is communicated with the liquid outlet passage.

In one embodiment, the first layer segment has at least one of the diversion ports and at least one of the confluence ports; and/or

The second interval has at least one of the diversion ports and at least one confluence port; and/or

The liquid outlet of the first layer section is the flow combining port, and the liquid inlet of the second layer section is the flow dividing port.

In one embodiment, the first layer segment comprises an inner arc segment, an outer arc segment and two connecting segments positioned at two ends of the first layer segment, and each connecting segment connects one end of the inner arc segment with one end of the outer arc segment;

the second layer section comprises a plurality of rings which are sleeved and arranged and a bridge section which is communicated with two adjacent rings;

the first conductive segment extends in a stacking direction of the first layer segment and the second layer segment.

In an embodiment, the throttling channel further comprises a second conducting section for communicating the liquid outlet of the second interval with the liquid outlet channel.

In an embodiment, the liquid inlet of the throttling channel is the flow dividing port, and the liquid outlet of the second interval is the flow combining port.

In an embodiment, the second conducting section includes a vertical section and a horizontal section, the vertical section extends along a stacking direction of the first layer section and the second layer section, the horizontal section, the vertical section and the liquid outlet channel are sequentially communicated.

In one embodiment, the throttle valve comprises a valve body, a fitting and an end cover;

the matching piece is arranged on the valve body, at least one of the valve body and the matching piece is provided with a first groove, the first groove on the valve body and the matching piece are enclosed to form the first layer section, the first groove on the matching piece and the valve body are enclosed to form the first layer section, or the first groove on the valve body and the first groove on the matching piece are butted and enclosed to form the first layer section;

the end cover is positioned on one side of the matching piece, which is far away from the first layer section, and is arranged on the valve body, at least one of the matching piece and the end cover is provided with a second groove, the second groove on the matching piece and the end cover are enclosed to form the second layer section, the second groove on the end cover and the matching piece are enclosed to form the second layer section, or the second groove on the matching piece and the second groove on the end cover are butted and enclosed to form the second layer section;

the first conduction section is positioned on the matching piece;

at least one of the fitting piece and the end cover is provided with a conduction groove, the conduction groove on the fitting piece and the end cover are surrounded to form the horizontal section, the conduction groove on the end cover and the fitting piece are surrounded to form the horizontal section or the conduction groove on the fitting piece and the conduction groove on the end cover are in butt joint to form the horizontal section, and the vertical section is located on the fitting piece.

In one embodiment, the mating member includes a base plate and a convex pillar protruding from one side of the base plate, the valve body has an insertion groove, the convex pillar is inserted into the insertion groove and sealed by a first sealing ring sleeved on the convex pillar, and the first layer section is located outside the convex pillar;

the end cover comprises an end plate and a boss protruding from one side of the end plate, the valve body is provided with an opening, the boss is inserted into the opening and is sealed by a second sealing ring sleeved on the boss, and the second layer section is located at the end part, far away from the end plate, of the boss.

In one embodiment, the throttle valve comprises a valve body and a matching piece arranged on the valve body, at least one of the valve body and the matching piece is provided with a groove, the groove on the valve body and the matching piece are enclosed to form the throttle channel, the groove on the matching piece and the valve body are enclosed to form the throttle channel, or the groove on the valve body and the groove on the matching piece are in butt-joint enclosure to form the throttle channel;

or the throttle valve comprises a valve body, a matching piece and an end cover, wherein the matching piece and the end cover are arranged on the valve body, at least one of the matching piece and the end cover is provided with a groove, the groove in the matching piece and the end cover are surrounded to form the throttling channel, the groove in the end cover and the matching piece are surrounded to form the throttling channel, or the groove in the matching piece and the groove in the end cover are in butt joint to form the throttling channel.

The invention also provides a water purifier, which comprises the throttle valve, wherein the throttle valve is used for controlling the flow of the wastewater of the water purifier.

In above-mentioned choke valve, the throttle passageway that communicates inlet channel and liquid outlet channel has at least one reposition of redundant personnel mouth and at least one confluence mouth, and liquid can divide into two routes of liquid at reposition of redundant personnel mouth at least, and two routes of liquid can join in a whole way liquid at confluence mouth to the throttle passageway can have longer flow path, and then can make the throttle passageway have great on-way resistance, and the setting of reposition of redundant personnel mouth and confluence mouth can increase the flow obstacle of throttle passageway moreover, makes the throttle passageway have great local resistance. Therefore, under the condition of the same liquid inlet pressure of the liquid inlet channel, in order to realize the same throttling flow rate, namely, in order to realize the same resistance, the flow area of the throttling channel can be larger than that of the throttling pore in the related art, so that the throttling channel has a better anti-blocking effect compared with the throttling pore in the related art.

And when the throttle valve is designed, the on-way resistance and the local resistance of the throttling channel can be adjusted by adjusting the number of the branch ports and the flow combining ports, so that the resistance of the throttling channel can be changed in a large range, and the flow passing area of the throttling channel can be changed in a large range. Therefore, the flow area of the throttling channel can be designed according to actual needs, and the larger anti-blocking requirement is met. The throttle valve described above therefore has a higher degree of freedom in design.

In addition, when one path of flow path which is branched from a certain branch opening is blocked and other paths of flow paths which are branched from the branch opening are not blocked, the throttling channel can be used without being scrapped. However, since the resistance of the partially blocked throttle channel is greater than that of the completely unblocked throttle channel, the throttle flow rate of the partially blocked throttle channel is less than that of the completely unblocked throttle channel, and the partially blocked throttle channel needs to be used as a throttle valve with a smaller flow gauge. That is to say, when the throttle valve is partially blocked, the throttle valve does not need to be scrapped, can be continuously used as a throttle valve with a smaller flow gauge, can be recycled, and saves the cost.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic perspective view of a throttle valve according to an embodiment of the present invention;

FIG. 2 is an exploded perspective view of the throttle valve shown in FIG. 1;

FIG. 3 is an exploded side view of the throttle valve shown in FIG. 1;

FIG. 4 is a cross-sectional view of the throttle valve shown in FIG. 1;

FIG. 5 is a top view of the valve body of the throttle valve shown in FIG. 1;

FIG. 6 is an enlarged view of a portion of FIG. 5;

FIG. 7 is a side view of the throttle valve shown in FIG. 1 with the valve body broken away;

FIG. 8 is a top view of the end cover of the throttle valve shown in FIG. 1;

FIG. 9 is an enlarged view of a portion of FIG. 8;

FIG. 10 is a side view of the throttle valve shown in FIG. 1 with the end cover broken away;

FIG. 11 is a top view of a mating member of the throttle valve shown in FIG. 1;

FIG. 12 is a side view of the throttle valve shown in FIG. 1 with the mating member broken away;

FIG. 13 is a fluid flow diagram 1 of a throttle valve according to an embodiment of the present invention;

FIG. 14 is a fluid flow diagram 2 of a throttle valve according to an embodiment of the present invention;

FIG. 15 is a fluid pressure gradient profile 1 for a throttle valve according to an embodiment of the present invention;

FIG. 16 is a fluid pressure gradient profile 2 for a throttle valve according to an embodiment of the present invention;

fig. 17 shows a fluid pressure gradient profile 3 of a throttle valve according to an embodiment of the invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Throttle valve	12	Liquid inlet channel
14	Liquid outlet channel	16	Throttle channel
				16a	Flow dividing port	16b	Merging port
162	First layer segment	164	Second layer segment
				166	First conducting section	1622	Inner arc segment
1624	Outer arc segment	1626	Connecting segment
				1642	Ring	1644	Bridge section
200	Valve body	300	Fitting piece
				400	End cap	210	The first groove
410	Second groove	168	Second conducting segment
				1682	Vertical section	1684	Horizontal segment
302	Substrate	304	Convex column
				202	Plug-in groove	402	End plate
404	Boss	204	Opening of the container
				420	Conduction groove	500	First seal ring
600	Second seal ring	700	Third seal ring
				800	Valve core	900	Conductive wire
10a	Liquid chamber

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if appearing throughout the text, "and/or" is meant to include three juxtaposed aspects, taking "A and/or B" as an example, including either the A aspect, or the B aspect, or both A and B satisfied aspects. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides a throttle valve.

In the embodiment of the present invention, as shown in fig. 1 to 4, the throttle valve 10 has a liquid flow path including a liquid inlet passage 12, a liquid outlet passage 14, and a throttle passage 16. The throttling channel 16 is communicated with the liquid inlet channel 12 and the liquid outlet channel 14. After entering the throttle valve 10 through the liquid inlet channel 12, the liquid can enter the liquid outlet channel 14 through the throttle channel 16 and then is discharged out of the throttle valve 10 through the liquid outlet channel 14.

In the present embodiment, as shown in fig. 4 to 9, the throttle passage 16 has at least one branch flow port 16a and at least one confluence flow port 16 b. The liquid can be branched into at least two liquid paths at the branching port 16a, and the at least two liquid paths can be merged at the merging port 16b, so that the number of liquid paths is reduced after passing through the merging port 16 b. Specifically, in the present embodiment, the liquid is split into two liquids at the split port 16a, and the two liquids can be merged into one liquid at the merging port 16 b. It is understood that in other embodiments, the liquid may be split into three, four, or even more liquid streams at the split port 16a, or the three, four, or even more liquid streams may be combined into one or two liquid streams at the combined port 16 b.

In the related art, the inlet passage 12 and the outlet passage 14 communicate through a throttle orifice, that is, in the related art, the liquid flow path of the throttle valve includes the inlet passage 12, the outlet passage 14, and the throttle orifice. Since the flow area (cross-sectional area) of the orifice is usually small, the problem of clogging of the orifice tends to occur. The flow area of the throttling pore is related to the throttling flow, and after the liquid inlet pressure of the liquid inlet channel 12 is determined, the smaller the throttling flow is, the smaller the flow area of the throttling pore is required to be, that is, the smaller the filtering area of the throttling pore of the throttling valve is, the more the problem of the blockage of the throttling pore is easily caused. That is, in the related art, the throttle valve adjusts the local resistance of the orifice by adjusting the flow area of the orifice, thereby achieving the purpose of adjusting the throttle flow.

In the throttle valve 10, the throttle passage 16 communicating the inlet passage 12 and the outlet passage 14 has at least one branch opening 16a and at least one merging opening 16b, the liquid can be divided into at least two paths of liquid at the branch opening 16a, and the at least two paths of liquid can be merged at the merging opening 16b, so that the number of paths of the liquid is reduced after passing through the merging opening 16b, and thus the throttle passage 16 can have a longer flow path, and further the throttle passage 16 can have a larger on-way resistance, and the flow obstacles of the throttle passage 16 can be increased due to the arrangement of the branch opening 16a and the merging opening 16b, and the throttle passage 16 can have a larger local resistance. So that the flow area of the throttle channel 16 can be larger than that of the related art orifice under the same feed pressure of the feed passage 12 in order to achieve the same throttle flow rate, that is, to achieve the same resistance, so that the throttle channel 16 has a better anti-blocking effect than the related art orifice.

In addition, when the throttle valve 10 is designed, the on-way resistance and the local resistance of the throttle passage 16 can be adjusted by adjusting the number of the branch ports 16a and the confluence ports 16b, so that the resistance of the throttle passage 16 can be changed in a large range, and further, the flow area of the throttle passage 16 can be changed in a large range. Therefore, the flow area of the throttling channel 16 can be designed according to actual needs, and the greater anti-blocking requirement is met. The throttle valve 10 described above therefore has a higher degree of freedom in design.

In addition, when one of the flow paths branched from one of the branched ports 16a is blocked and the other flow paths branched from the branched port 16a are not blocked, the throttle passage 16 can be used without being discarded. However, since the resistance of the partially clogged throttle passage 16 is greater than that of the completely unclogged throttle passage 16, the throttle flow rate of the partially clogged throttle passage 16 is smaller than that of the completely unclogged throttle passage 16, and the throttle valve 10 as a smaller flow rate gauge needs to be continuously used. That is, when the throttle valve 10 is partially blocked, the throttle valve 10 does not need to be discarded, and can be continuously used as the throttle valve 10 with a smaller flow gauge, so that the throttle valve can be recycled, and the cost is saved.

In the present embodiment, as shown in fig. 5 and 6, the liquid inlet of the throttle passage 16 is a branch port 16 a. That is, in the present embodiment, the liquid is branched into at least two flows by the branch port 16a immediately after entering the throttle passage 16. In this way, it is more advantageous to increase the on-way resistance of the throttle passage 16 in a limited space (the space for the throttle valve 10 to design the throttle flow passage 16 is effective). It is understood that in other embodiments, the liquid inlet of the throttling channel 16 may not be the branch port 16a, and in this case, the liquid enters the throttling channel 16 through the liquid inlet, flows for a certain distance, and is then divided into at least two flows by the branch port 16 a.

In the present embodiment, as shown in fig. 4-12, the throttling passage 16 includes a first layer segment 162, a second layer segment 164, and a first conducting segment 166. First layer segment 162 and second layer segment 164 are stacked, and first conducting segment 166 connects the liquid outlet of first layer segment 162 with the liquid inlet of second layer segment 164. The inlet of the first segment 162 is in communication with inlet channel 12 and the outlet of the second segment 164 is in communication with outlet channel 14. Specifically, in the present embodiment, in the flowing direction of the liquid, the end of the first layer section 162 away from the first conducting section 166 is communicated with the liquid inlet channel 12, and the end of the second layer section 164 away from the first conducting section 166 is communicated with the liquid outlet channel 14. In the present embodiment, the throttle passage 16 has two layers, and thus, it is more advantageous to increase the on-way resistance of the throttle passage 16 in a limited space (the space for the throttle valve 10 to design the throttle flow passage 16 is effective). It is understood that in other embodiments, the throttling channel 16 may have only one layer.

In this embodiment, the first interval 162 has at least one flow diversion port 16a and at least one flow merger port 16 b. The second interval 162 has at least one flow diversion port 16a and at least one confluence port 16 b. In this way, the throttling channel 16 can be provided with at least two branch ports 16a and at least two confluence ports 16b, so that the flow obstruction of the throttling channel 16 can be increased, and the throttling channel 16 has larger local resistance. Furthermore, the first and

second intervals

162 and 162 each have at least one flow splitting port 16a and at least one flow combining port 16b, which further facilitates the addition of the flow splitting ports 16a and the flow combining ports 16b in a limited space (the space available for designing the throttling flow path 16 by the throttling valve 10 is effective). It is understood that in other embodiments, the first interval 162 may not have flow-splitting ports 16a and/or confluence ports 16b, and the second interval 162 may not have flow-splitting ports 16a and/or confluence ports 16 b.

In this embodiment, the first conducting section 166 connects one confluence port 16b of the first interval 162 and one diversion port 16a of the second interval 162, that is, in this embodiment, the liquid outlet of the first interval 162 is the confluence port 16b, and the liquid inlet of the second interval 162 is the diversion port 16 a. In this way, it is more convenient to not only communicate the first layer section 162 with the second layer section 162, but also to provide the flow dividing ports 16a and the flow merging ports 16 b. It is understood that in other embodiments, the first layer segment 162 may have an outlet port that is not the flow splitting port 16a or the flow merging port 16b, while the second layer segment 162 has an inlet port that is not the flow splitting port 16a or the flow merging port 16b, and the first conducting segment 166 connects the outlet port of the first layer segment 162 and the inlet port of the second layer segment 162.

In this embodiment, the first layer 162 includes an inner arc segment 1622, an outer arc segment 1624, and two connecting segments 1626 located at two ends of the first layer 162, one connecting segment 1626 connecting one end of the inner arc segment 1622 with one end of the outer arc segment 1624, and the other connecting segment 1626 connecting the other end of the inner arc segment 1622 with the other end of the outer arc segment 1624. In this way, it is more advantageous to increase the on-way resistance of the throttle passage 16 in a limited space (the space for the throttle valve 10 to design the throttle flow passage 16 is effective). For example, having the inner and

outer arc segments

1622, 1624 and two connecting segments 1626 may avoid interference with elements on the valve seat 200 when the first layer segment 162 is formed on the valve seat 200. It is understood that in other embodiments, when interference issues need not be considered, first interval 162 may also include a plurality of rings that are nested, with adjacent two rings of the plurality of rings communicating.

In this embodiment, the inner arc segment 1622 and the outer arc segment 1624 are concentrically arranged, that is, the distance between the inner arc segment 1622 and the outer arc segment 1624 is equal everywhere. It is understood that in other embodiments, the inner arc 1622 and the outer arc 1624 may be disposed at different centers, so that the inner arc 1622 and the outer arc 1624 are controlled not to interfere with each other. Specifically, in this embodiment, the central angle corresponding to the inner arc segment 1622 is the same as the central angle corresponding to the outer arc segment 1624, and the connecting segment 1626 is U-shaped. In this manner, the first layer segment 162 is more advantageously fabricated. More specifically, in the present embodiment, the central angle of the inner arc 1622 is greater than or equal to 300 ° and less than 360 °, which is more favorable for increasing the on-way resistance of the throttle passage 16 in a limited space (the space of the throttle valve 10 for designing the throttle flow passage 16 is effective).

In this embodiment, there is one diversion port 16a of the first interval 162 and located on the inner arc 1622, and one confluence port 16b of the first interval 162 and located on the outer arc 1624. In this way, the flow merging port 16b of the first layer section 162 is more favorably communicated with the first conducting section 166. It is appreciated that in other embodiments, the flow splitting ports 16a of the first interval 162 are one and located on the outer arc 1624 and the flow merging ports 16b of the first interval 162 are one and located on the inner arc 1622.

In this embodiment, the second interval 164 includes a plurality of rings 1642 and bridge sections 1644, the rings 1642 have different radii, and the rings 1642 are nested. Adjacent rings 1642 are connected by bridge segments 1644. In this way, it is more advantageous to increase the on-way resistance of the throttle passage 16 in a limited space (the space for the throttle valve 10 to design the throttle flow passage 16 is effective). It is understood that in other embodiments, the second interval 164 may include only one annulus 1642 or only arc segments.

In the present embodiment, the plurality of rings 1642 are concentrically arranged, that is, the distance between two adjacent rings 1642 is equal everywhere. It is understood that in other embodiments, the plurality of rings 1642 may be disposed with different centers, so that the plurality of rings 1642 are controlled not to interfere with each other. Specifically, in the present embodiment, the plurality of rings 1642 are arranged at equal intervals. In this manner, the second interval 164 is more advantageously fabricated.

In this embodiment, each ring 1642 has a diversion port 16a and a merging port 16b, the diversion port 16a of the outermost ring 1642 communicates with the first conducting section 166, the merging port 16b of the innermost ring 1642 communicates with the liquid outlet channel 14, and in two adjacent rings 1642, the diversion port 16a of one ring 1642 communicates with the merging port 16b of the other ring 1642 through the bridge section 1644. In this way, it is more advantageous to increase the on-way resistance of the throttle passage 16 in a limited space (the space for the throttle valve 10 to design the throttle flow passage 16 is effective). It is understood that in other embodiments, each ring 1642 has a diversion port 16a and a merging port 16b, the diversion port 16a of the innermost ring 1642 communicates with the first conducting section 166, the merging port 16b of the outermost ring 1642 communicates with the liquid outlet channel 14, and in two adjacent rings 1642, the diversion port 16a of one ring 1642 communicates with the merging port 16b of the other ring 1642 through the bridge section 1644.

In this embodiment, the number of flow-splitting ports 16a of the second interval 164, the number of flow-merging ports 16b of the second interval 164, and the number of rings 1642 are equal, and the number of bridge segments 1644 is one less than the number of rings 1642.

In the present embodiment, the first conductive segment 164 extends along the stacking direction of the first layer segment 162 and the second layer segment 164. In this way, by controlling the liquid outlet of the first layer section 162 and the liquid inlet of the second layer section 164 to be opposite to each other in the stacking direction of the first layer section 162 and the second layer section 164, the first conducting section 164 can communicate the liquid outlet of the first layer section 162 and the liquid inlet of the second layer section 164, which is very convenient for the first conducting section 164 to communicate the first layer section 162 and the second layer section 162.

In the present embodiment, as shown in fig. 1 to 12, the throttle valve 10 includes a valve body 200, a fitting 300, and an end cover 400.

In the present embodiment, the valve body 200 defines a first groove 210. The fitting 300 is disposed on the valve body 200 and encloses the first groove 210 on the valve body 200 to form the first layer 162. It is understood that in other embodiments, the fitting member 300 may also be provided with the first groove 210, the fitting member 300 is provided on the valve body 200, and the first groove 210 on the fitting member 300 and the valve body 200 enclose to form the first layer 162. It is understood that in other embodiments, the valve body 200 may be provided with the first groove 210, the fitting member 300 is provided on the valve body 200, and the first groove 210 on the fitting member 300 and the first groove 210 on the valve body 200 are in abutting engagement to form the first layer section 162.

In the above embodiment, the fitting 300 is disposed on the valve body 200, at least one of the valve body 200 and the fitting 300 is provided with the first groove 210, the first groove 210 on the valve body 200 and the fitting 300 are enclosed to form the first layer 162, the first groove 210 on the fitting 300 and the valve body 200 are enclosed to form the first layer 162, or the first groove 210 on the valve body 200 and the first groove 210 on the fitting 300 are in butt-enclosed to form the first layer 162. That is, in the above embodiment, the first layer section 162 is formed by two members, so that it is very convenient to form the first layer section 162. It is understood that in other embodiments, the first layer 162 may be formed directly on the valve body 200 or the fitting 300 in a drilling manner.

In this embodiment, the flow dividing and merging

ports

16a and 16b of the first interval 162 are located on the floor of the first groove 210.

In this embodiment, the first tier section 162 is in indirect communication with the inlet channel 12. Specifically, in this embodiment, the liquid inlet channel 12 is directly communicated with the cavity of the valve body 200, and one of the branch ports 16a of the first layer 162 is directly communicated with the cavity of the valve body 200, so that the liquid enters the first layer 162 through one of the branch ports 16a of the first layer 162 after entering the cavity of the valve body 200 through the liquid inlet channel 12.

In this embodiment, the end cap 400 is formed with a second groove 410. End cap 400 is positioned on the side of fitting 300 away from first layer segment 162 and is disposed on valve body 200, and second groove 410 on end cap 400 and fitting 300 enclose second layer segment 164. It is understood that in other embodiments, the fitting 300 may be provided with a second groove 410, the end cover 400 is disposed on the valve body 200 at a side of the fitting 300 away from the first layer 162, and the end cover 400 and the second groove 410 on the fitting 300 enclose the second layer 164. It is understood that in other embodiments, the fitting member 300 may be provided with a second groove 410, the end cover 400 is also provided with a second groove 410, the end cover 400 is disposed on the valve body 200 at a side of the fitting member 300 away from the first layer 162, and the second groove 410 on the fitting member 300 and the second groove 410 on the end cover 400 are in butt-surrounding engagement to form the second layer 164.

In the above embodiment, the end cover 400 is located on the side of the fitting member 300 away from the first layer 162 and is disposed on the valve body 200, at least one of the fitting member 300 and the end cover 400 is provided with the second groove 410, the second groove 410 on the fitting member 300 and the end cover 400 surround to form the second layer 164, the second groove 410 on the end cover 400 and the fitting member 300 surround to form the second layer 164, or the second groove 410 on the fitting member 300 and the second groove 410 on the end cover 400 abut to form the second layer 164. That is, in the above embodiment, the second layer section 164 is formed by two elements, so that it is very convenient to form the second layer section 164. It is understood that in other embodiments, drilling may be used to form second interval 164 directly on fitting 300 or end cap 400.

In this embodiment, the flow-splitting ports 16a and the flow-merging ports 16b of the second interval 164 are located on the bottom of the groove of the second groove 410.

In this embodiment, the first conducting section 166 is located on the fitting 300. Specifically, in the present embodiment, the first conduction section 166 is a through hole penetrating through two opposite sides of the fitting 300.

In this embodiment, the throttling channel 16 further includes a second conducting section 168, and the second conducting section 168 communicates the second layer section 164 with the liquid outlet channel 14. In this manner, it is very convenient for the second interval 164 to communicate with the exit passage 14. Specifically, in the present embodiment, the second conduction section 168 connects one confluence port 16b of the second layer section 164 with the outlet passage 14, that is, in the present embodiment, the outlet port of the second layer section 164 is the confluence port 16 b. In this way, not only is it easier for the second interval 164 to communicate with the effluent channel 14, but it is also easier to provide the diversion port 16a and the confluence port 16 b. More specifically, in the present embodiment, the second conduction section 168 connects one confluence port 16b of the innermost ring 1642 of the second layer section 164 with the liquid outlet channel 14. It is understood that in other embodiments, the second layer segment 162 has a liquid outlet which is not a diversion port 16a or a confluence port 16b, and the second conducting segment 168 communicates the liquid outlet of the second layer segment 164 with the liquid outlet passage 14.

In the present embodiment, the second conducting section 168 includes a vertical section 1682 and a horizontal section 1684, and the vertical section 1682 extends along the stacking direction of the first layer section 162 and the second layer section 164. The horizontal section 1684 is communicated with the second layer section 164 and the vertical section 1682, and the vertical section 1682 is communicated with the horizontal section 1684 and the liquid outlet channel 14, that is, the horizontal section 1684, the vertical section 1682 and the liquid outlet channel 14 are communicated in sequence. Thus, it is very convenient for the second conduction section 168 to communicate the second layer section 164 with the liquid outlet channel 14. Specifically, in this embodiment, horizontal segments 1684 are located within the innermost annular ring 1642 of second layer segment 164. More specifically, in the present embodiment, vertical segment 1682 is located at the center of the innermost circle 1642 of second interval 164.

In this embodiment, vertical section 1682 is located on fitting 300. Specifically, in this embodiment, the vertical segments 1682 are through holes that extend through opposing sides of the fitting 300.

In this embodiment, the end cap 400 is formed with a guiding groove 420, and the guiding groove 420 of the end cap 400 and the fitting 300 are enclosed to form a horizontal section 1684. It is understood that in other embodiments, the fitting 300 may be provided with the guiding groove 420, the end cap 400 is disposed on the valve body 200 at a side of the fitting 300 away from the first layer 162, and the end cap 400 and the guiding groove 420 of the fitting 300 enclose the horizontal section 1684. It is understood that in other embodiments, the fitting 300 may also have a guiding groove 420, the end cap 400 also has a guiding groove 420, the end cap 400 is located on the side of the fitting 300 away from the first layer 162 and is disposed on the valve body 200, and the guiding groove 420 on the fitting 300 and the guiding groove 420 on the end cap 400 are engaged to form the horizontal section 1684.

In the above embodiments, the end cover 400 is located on the side of the fitting 300 away from the first layer 162 and is disposed on the valve body 200, at least one of the fitting 300 and the end cover 400 has a guiding groove 420, the guiding groove 420 on the fitting 300 and the end cover 400 enclose a horizontal section 1684, the guiding groove 420 on the end cover 400 and the fitting 300 enclose a horizontal section 1684, or the guiding groove 420 on the fitting 300 and the guiding groove 420 on the end cover 400 enclose a horizontal section 1684. That is, in the above embodiment, the horizontal section 1684 is formed by two elements, so that it is very convenient to form the horizontal section 1684. It is understood that in other embodiments, drilling may be used to form horizontal section 1684 directly on fitting 300 or end cap 400.

In this embodiment, the second conduction section 168 is indirectly communicated with the liquid outlet channel 14. Specifically, in this embodiment, the liquid outlet channel 14 is directly connected to the cavity of the valve body 200, the liquid outlet of the second conducting section 168 is directly connected to the cavity of the valve body 200, and when the liquid enters the cavity of the valve body 200 through the liquid outlet of the second conducting section 168, the liquid is discharged through the liquid outlet channel 14.

In the above embodiment, the throttle passage 16 has two layers, and thus it is more advantageous to increase the on-way resistance of the throttle passage 16 in a limited space (the space for the throttle valve 10 to design the throttle flow passage 16 is effective). It is understood that in other embodiments, the throttling channel 16 may have only one layer. At this point, in some embodiments, end cap 400 may be omitted; in some embodiments, the throttling passage 16 may not be formed in the valve body 200.

In some embodiments, after omitting end cap 400, throttle valve 10 includes valve body 200 and fitting 300 provided on valve body 200. Specifically, in some embodiments, the valve body 200 is provided with a third groove, and the fitting 300 and the third groove enclose to form the throttling channel 16; in some embodiments, the fitting 300 defines a fourth groove, and the valve body 200 and the fourth groove enclose to form the throttling channel 16; in some embodiments, the valve body 200 defines a third groove, and the fitting 300 defines a fourth groove, and the third groove and the fourth groove are in abutting engagement to form the throttling channel 16. In the above embodiment, the throttle valve 10 includes the valve body 200 and the fitting 300 disposed on the valve body 200, at least one of the valve body 200 and the fitting 300 is provided with a groove, the groove on the valve body 200 and the fitting 300 enclose to form the throttle channel 16, the groove on the fitting 300 and the valve body 200 enclose to form the throttle channel 16, or the groove on the valve body 200 and the groove on the fitting 300 enclose to form the throttle channel 16.

In some embodiments, instead of forming the throttle passage 16 in the valve body 200, the throttle valve 10 includes the valve body 200, a fitting 300 provided on the valve body 200, and an end cap 400 provided on the valve body 200 on a side of the fitting 300 remote from the valve body 200. Specifically, in some embodiments, the fitting member 300 defines a fifth groove, and the fitting member 300 and the fifth groove form the throttling channel 16; in some embodiments, the end cover 400 is provided with a sixth groove, and the fitting 300 and the sixth groove enclose to form the throttling channel 16; in some embodiments, the fitting 300 defines a fifth groove, and the end cap 400 defines a sixth groove, wherein the fifth groove and the sixth groove are in abutting engagement to form the throttling channel 16. In the above embodiments, at least one of the fitting 300 and the end cover 400 is provided with a groove, the groove on the fitting 300 and the end cover 400 enclose to form the throttling channel 16, the groove on the end cover 400 and the fitting 300 enclose to form the throttling channel 16, or the groove on the fitting 300 and the groove pair on the end cover 400 enclose to form the throttling channel 16.

In this embodiment, the throttle valve 10 further includes a first seal ring 500. The fitting 300 includes a base 302 and a boss 304 protruding from one side of the base 302. The valve body 200 has an insertion groove 202 adapted to the protruding pillar 304, and the protruding pillar 304 is inserted into the insertion groove 202 and sealed by a first sealing ring 500 sleeved on the protruding pillar 304. The first layer segments 162 are located outside the posts 304. In this manner, the fitting 300 is very easily sealingly coupled to the valve body 200.

In this embodiment, the throttle valve 10 further includes a second seal ring 600. End cap 400 includes an end plate 402 and a boss 404 protruding from one side of end plate 402. The valve body 200 has an opening 204, the boss 404 is inserted into the opening 204 and sealed by the second seal ring 600 sleeved on the boss 404, and the second layer section 164 is located at the end of the boss 404 away from the end plate 402. In this manner, the end cap 400 is sealingly coupled to the valve body 200 with great ease.

In this embodiment, the throttle valve 10 further includes two third sealing rings 700, one third sealing ring 700 is sleeved on the liquid inlet channel 12 to enable the outer wall of the liquid inlet channel 12 to be in sealing connection with the inner wall of the water supply pipe, and the other third sealing ring 700 is sleeved on the liquid outlet channel 14 to enable the outer wall of the liquid outlet channel 14 to be in sealing connection with the inner wall of the water discharge pipe.

In this embodiment, the throttle valve 10 is a throttle solenoid valve, the throttle valve 10 further includes a valve body 800 having a coil and a conductive wire 900 electrically connected to the coil, and the valve body 200 is provided with the valve body 800. When the throttle valve 10 is in a power-on state, the liquid inlet channel 12 is directly communicated with the liquid outlet channel 14 through the liquid cavity 10a, and meanwhile, the liquid inlet channel 12, the throttle channel 16, the liquid cavity 10a and the liquid outlet channel 14 are sequentially communicated; when the throttle valve 10 is in the power-off state, the liquid inlet passage 12 and the liquid outlet passage 14 are not directly communicated through the liquid chamber 10a, but the liquid inlet passage 12, the throttle passage 16, the liquid chamber 10a and the liquid outlet passage 14 are sequentially communicated, and at this time, the throttle valve 10 is in the throttle state.

The invention further provides a water purifier, which comprises a throttle valve 10, the specific structure of the throttle valve 10 refers to the above embodiments, and the water purifier adopts all the technical solutions of all the above embodiments, so that the water purifier at least has all the beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated herein.

The waste water valve used by the water purifier is a throttling valve with small throttling flow under the common condition, and in practical application, the problem that a throttling small hole of the waste water valve is blocked often occurs, so that maintenance personnel are required to go to the door for maintenance, and the maintenance cost of the water purifier is greatly increased. In this embodiment, the throttle valve 10 is used for controlling the flow rate of the wastewater of the water purifier, that is, the throttle valve 10 is used as a wastewater valve of the water purifier.

In view of the above embodiments(the throttle valve 10 is used in an embodiment of a waste water valve of a water purifier), simulation and test prove that when the inlet water pressure is the same and the same waste water flow rate (the throttle flow rate is in the range of 200-300 ml/min) is achieved, and the throttle valve (the throttle valve throttling the small throttle hole) in the related art is adopted for throttling, the flow area of the small throttle hole is 0.13mm²The flow path of the throttling orifice is substantially negligible, and when throttling is performed using the above-described throttle valve 10, the flow area of the throttling channel 16 of the throttle valve 10 is 0.40mm²The flow path (length) of the throttle passage 16 is 210mm, and the arrangement of the branch port 16a and the confluence port 16b of the throttle passage 16 is the same as that of the embodiment shown in FIGS. 1 to 10.

As can be seen from the simulation and test verification, when the inlet water pressure is the same and the same waste water flow (the throttle flow is within the range of 200-300 ml/min), the flow area of the throttle passage 16 is 0.40mm²Approximately the flow area of the throttling orifice is 0.13mm²Three times, so that the throttle valve 10 has better anti-blocking effect compared with a throttle valve adopting throttling small hole throttling.

Meanwhile, as can be seen from the fluid flow charts of the throttle valves shown in fig. 13 and 14, the fluid flows along the inlet passage 12, the throttle passage 16 and the outlet passage 14. As can be seen from the fluid pressure gradient distribution diagrams of the throttle valve shown in fig. 15 to 17, the regions with larger pressure gradients are distributed at the diversion port 16a and the merging port 16b, and the arrangement of the diversion port 16a and the merging port 16b can increase the local resistance received by the fluid, increase the throttling effect, realize a larger flow passage cross-sectional area (flow passing area of the throttling channel 16) at the same waste water flow rate (throttling flow rate), and prolong the service life of the throttle valve.

The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A throttling valve, wherein a liquid flow path of the throttling valve comprises:

a liquid inlet channel;

a liquid outlet channel; and

2. The throttling valve of claim 1, wherein the throttling passage comprises a first interval and a second interval which are arranged in a stacked manner, and a first conducting section which is communicated with the first interval and the second interval, the liquid inlet of the first interval is communicated with the liquid inlet passage, and the liquid outlet of the second interval is communicated with the liquid outlet passage.

3. The throttling valve of claim 2, wherein the first stage has at least one of the diverging ports and at least one of the converging ports; and/or

The second interval has at least one of the diversion ports and at least one confluence port.

4. The throttling valve of claim 2, wherein the first deck section comprises an inner arc section, an outer arc section, and two connecting sections at opposite ends of the first deck section, each connecting section connecting one end of the inner arc section to one end of the outer arc section;

the first conducting section extends along the stacking direction of the first layer section and the second layer section, the liquid outlet of the first layer section is the flow combining port, and the liquid inlet of the second layer section is the flow dividing port.

5. The throttling valve of claim 2, wherein the throttling passage further comprises a second conducting section communicating the exit orifice of the second interval with the exit passage.

6. The throttling valve of claim 5, wherein the liquid inlet of the throttling channel is the flow-splitting port and the liquid outlet of the second interval is the flow-merging port.

7. The throttling valve of claim 6, wherein the second conducting section comprises a vertical section and a horizontal section, the vertical section extends along the stacking direction of the first layer section and the second layer section, the horizontal section, the vertical section and the liquid outlet channel are communicated in sequence.

8. The throttling valve of claim 7, wherein the throttling valve comprises a valve body, a fitting, and an end cover;

the first conduction section is positioned on the matching piece;

the fitting piece with at least one of the end cover has seted up the conduction groove, conduction groove on the fitting piece with the end cover encloses to close and forms the horizontal segment, conduction groove on the end cover with the fitting encloses to close and forms the horizontal segment or conduction groove on the fitting piece with conduction groove butt joint on the end cover encloses to close and forms the horizontal segment, the both ends of vertical section are located respectively the fitting piece with on the end cover.

9. The throttling valve of claim 2, wherein the mating member comprises a base plate and a convex post protruding from one side of the base plate, the valve body has an insertion groove, the convex post is inserted into the insertion groove and sealed by a first sealing ring sleeved on the convex post, and the first layer section is located outside the convex post;

10. The throttling valve of claim 1, wherein the throttling valve comprises a valve body and a matching piece arranged on the valve body, at least one of the valve body and the matching piece is provided with a groove, the groove on the valve body and the matching piece are encircled to form the throttling channel, the groove on the matching piece and the valve body are encircled to form the throttling channel, or the groove on the valve body and the groove on the matching piece are butted to form the throttling channel;

11. A water purification machine comprising a throttle valve as claimed in any one of claims 1 to 10 for controlling the flow of wastewater from said water purification machine.