CN114413027A - Waste water valve and water purifier - Google Patents
Waste water valve and water purifier Download PDFInfo
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- CN114413027A CN114413027A CN202210064818.4A CN202210064818A CN114413027A CN 114413027 A CN114413027 A CN 114413027A CN 202210064818 A CN202210064818 A CN 202210064818A CN 114413027 A CN114413027 A CN 114413027A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 235
- 239000002351 wastewater Substances 0.000 title claims abstract description 126
- 239000002699 waste material Substances 0.000 claims description 35
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 30
- 238000007789 sealing Methods 0.000 claims description 24
- 229910052742 iron Inorganic materials 0.000 claims description 15
- 239000002356 single layer Substances 0.000 claims description 8
- 230000035622 drinking Effects 0.000 claims description 5
- 239000010410 layer Substances 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 9
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 230000001965 increasing effect Effects 0.000 description 10
- 238000011010 flushing procedure Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229920005669 high impact polystyrene Polymers 0.000 description 1
- 239000004797 high-impact polystyrene Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 239000004033 plastic Substances 0.000 description 1
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- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
- F16K11/044—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with movable valve members positioned between valve seats
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0263—Construction of housing; Use of materials therefor of lift valves multiple way valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/029—Electromagnetically actuated valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0603—Multiple-way valves
- F16K31/0624—Lift valves
- F16K31/0627—Lift valves with movable valve member positioned between seats
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
- F16K47/023—Means in valves for absorbing fluid energy for preventing water-hammer or noise for preventing water-hammer, e.g. damping of the valve movement
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Lift Valve (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses a waste water valve and a water purifier, wherein the waste water valve comprises a valve body and an end cover. The valve body is provided with a water inlet and a water outlet, a water inlet cavity and a water outlet cavity are arranged in the valve body, the water inlet cavity is communicated with the water inlet, the water outlet cavity is provided with a water leakage hole, and the water outlet cavity is communicated with the water outlet through the water leakage hole; the end cover covers the valve body; the end cover is provided with a throttling flow channel, and the water inlet cavity is communicated with the water outlet cavity through the throttling flow channel. The waste water valve can solve the problem that the waste water valve is easy to block in the operation process, and the service life of the waste water valve is prolonged.
Description
Technical Field
The invention relates to the technical field of water purifiers, in particular to a waste water valve and a water purifier.
Background
The waste water valve is a core part of the water purifier system in the operation process, and the main purpose of the waste water valve is to discharge waste water generated in the filtering process of the water purifier in time. At present, a micro-hole is usually arranged in a valve body of a waste water valve on the market as a waste water hole, and the flow of waste water is controlled through the waste water hole. However, the fluid medium passing through the waste water valve often has impurities such as scale and crystals, and the waste water hole is arranged on the valve body, and the impurities such as scale and crystals easily cause the blockage of the waste water hole.
Disclosure of Invention
The invention mainly aims to provide a waste water valve, which aims to solve the problem that the waste water valve is easy to block in the operation process and prolong the service life of the waste water valve.
In order to achieve the purpose, the invention provides the waste water valve which comprises a valve body and an end cover. The valve body is provided with a water inlet and a water outlet, a water inlet cavity and a water outlet cavity are arranged in the valve body, the water inlet cavity is communicated with the water inlet, the water outlet cavity is provided with a water leakage hole, and the water outlet cavity is communicated with the water outlet through the water leakage hole; the end cover covers the valve body; the end cover is provided with a throttling flow channel, and the water inlet cavity is communicated with the water outlet cavity through the throttling flow channel.
In an embodiment, the end cover is provided with an accommodating cavity which is installed in a matched manner with the valve body, a groove is formed in the inner wall of the accommodating cavity, the end cover is provided with a flow channel inlet and a flow channel outlet, the flow channel inlet and the flow channel outlet are communicated with the groove, and the groove and the outer wall surface of the valve body are enclosed to form the throttling flow channel.
In one embodiment, the groove is formed in a side wall of the accommodating cavity, and the groove is arranged in a bent manner.
In one embodiment, the groove meanders along a side wall of the housing chamber and is provided in a plurality of layers in a height direction of the waste valve.
In one embodiment, the density of the wastewater in the wastewater valve is ρ, the throttling area of the wastewater in the wastewater valve is S, the on-way resistance coefficient of the valve body is K1, the on-way resistance coefficient of the groove in a single layer is K2, the local resistance coefficient of the valve body is M1, and the local resistance coefficient of the groove in a single layer is M2, and then the constant a ═ ρ (K1+ M1)/(2 ═ S2*3.6*1015) The constant B ═ ρ (K2+ M2)/(2 × S)2*3.6*1015) (ii) a The pressure difference between the water inlet and the water outlet is delta p, the number of the layers of the grooves is N, the flow of the wastewater is Q, and then Q is obtained2＝△p/(A+BN)。
In one embodiment, the depth of the accommodating cavity is H, the width of the grooves is D1, and the distance between the multiple grooves is D2, so that H is more than or equal to N × D1+ (N +1) × D2.
In one embodiment, the valve body is provided with a first water inlet hole, the first water inlet hole is provided with a first water inlet and a first water outlet, the first water inlet is arranged in the water inlet cavity, the first water outlet is arranged on the outer wall of the valve body, and the first water outlet is butted with the flow passage inlet so that the first water inlet hole is communicated with the throttling flow passage.
In an embodiment, the valve body is further provided with a second water inlet hole, one end of the second water inlet hole is arranged on the outer wall surface of the valve body and is in butt joint with the runner outlet, and the other end of the second water inlet hole is communicated with the water outlet cavity.
In one embodiment, the waste water valve further comprises a valve core assembly movably arranged in the valve body and used for opening or closing the water outlet cavity.
In an embodiment, when the valve core assembly opens the water outlet cavity, a first path passing through the throttling flow channel and a second path passing through the water inlet, the water inlet cavity, the water outlet cavity and the water outlet in sequence are formed between the water inlet and the water outlet, and the length of the first path is greater than that of the second path.
In one embodiment, the waste water valve further comprises a coil assembly, the coil assembly is mounted on the valve body, an inductance coil and a core iron are arranged in the coil assembly, the inductance coil is arranged on the coil assembly, and the core iron is located in the inductance coil and used for being matched with the valve core assembly to open or close the water outlet cavity.
In an embodiment, the waste water valve further comprises a fixing member, fixing holes are respectively formed in the coil assembly, the valve body and the end cover, and the fixing member is matched and connected with the fixing holes so that the coil assembly, the valve body and the end cover are fixedly connected.
In an embodiment, the waste valve further comprises a sealing ring, the sealing ring being located between the valve body and the end cap.
The invention also provides a water purifier, which comprises a water purifier body and the waste water valve, wherein the waste water valve is arranged in the water purifier body, and the waste water valve comprises a valve body and an end cover. The valve body is provided with a water inlet and a water outlet, a water inlet cavity and a water outlet cavity are arranged in the valve body, the water inlet cavity is communicated with the water inlet, and the water outlet cavity is communicated with the water outlet; the end cover covers the valve body; the end cover is provided with a throttling flow channel, and the throttling flow channel is communicated with the water inlet cavity and the water outlet cavity.
In one embodiment, the water purifier is any one of a water purifier, a water purifying drinking machine or a direct drinking machine.
According to the technical scheme, the waste water valve is provided with the end cover, the end cover can cover the valve body, the throttling flow channel is formed in the end cover, waste water flows to the throttling flow channel from the water inlet cavity after entering the water inlet cavity through the water inlet, then flows to the water outlet cavity through the throttling flow channel and finally flows out of the water outlet, and the throttling flow channel has a certain length. According to the technical scheme, the throttling flow channel with a certain length is arranged on the end cover, so that the cross-sectional area of the throttling flow channel can be larger under the same waste water flow, the waste water valve can be prevented from being blocked, and the service life of the waste water valve can be prolonged.
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 structural view of an embodiment of a waste valve according to the present invention;
FIG. 2 is an exploded view of the waste valve arrangement of FIG. 1;
FIG. 3 is a cross-sectional view of the waste valve arrangement of FIG. 1;
FIG. 4 is a schematic structural view of the valve body of FIG. 2;
FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;
FIG. 6 is a schematic structural view of the end cap of FIG. 2;
FIG. 7 is a schematic diagram of the structure of FIG. 6 from another perspective;
FIG. 8 is a cross-sectional view taken along line B-B of FIG. 7;
FIG. 9 is a schematic diagram of a portion of the structure of FIG. 1;
FIG. 10 is a cross-sectional view taken along line C-C of FIG. 9;
FIG. 11 is a cross-sectional view taken along line D-D of FIG. 9;
FIG. 12 is a schematic diagram of the structure of FIG. 6 from another perspective;
fig. 13 is a schematic diagram of the structure of fig. 6 from a further perspective.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | |
200 | |
| 100 | |
210 | |
| 110 | |
220 | Containing |
| 120 | |
221 | Groove |
| 130 | |
230 | |
| 140 | |
240 | |
| 141 | |
300 | Valve |
| 150 | The first |
400 | |
| 151 | |
410 | |
| 152 | The |
420 | |
| 160 | |
430 | Supporting |
| 170 | |
500 | |
| 180 | |
600 | |
| 190 | |
700 | Sealing ring |
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 (as shown in the drawing), 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 an embodiment of a waste water valve, which is a core part in the operation process of a water purifier system and is mainly used for discharging waste water generated in the filtering process of a water purifier in time. The waste water valve can be arranged in water purifier equipment such as a water purifier, a water purifying drinking machine or a direct drinking machine, and the like, so that the waste water ratio of the water purifier is controlled.
Referring to fig. 1 to 5, in an embodiment of the present invention, the waste water valve 10 includes a valve body 100 and an end cap 200. The valve body 100 is provided with a water inlet 110 and a water outlet 120, a water inlet cavity 130 and a water outlet cavity 140 are arranged in the valve body 100, the water inlet cavity 130 is communicated with the water inlet 110, the water outlet cavity 140 is provided with a water leakage hole 141, the water outlet cavity 140 is communicated with the water outlet 120 through the water leakage hole 141, and the water outlet cavity 140 is communicated with the water outlet 120; the end cover 200 covers the valve body 100; the end cap 200 is provided with a throttling flow passage 210, and the water inlet cavity 130 and the water outlet cavity 140 are communicated through the throttling flow passage 210.
Specifically, waste water may flow in from the inlet 110 on the valve body 100 and out from the outlet 120 on the valve body 100. The valve body 100 may be provided with an inlet pipe 170, the inlet pipe 170 having the inlet 110, the inlet pipe 170 penetrating into the valve body 100 to communicate the inlet 110 with the inlet chamber 130, and likewise, the valve body 100 may be provided with an outlet pipe 180, the outlet pipe 180 having the outlet 120, the outlet pipe 180 penetrating into the valve body 100 to communicate the outlet 120 with the outlet chamber 140. Of course, the water inlet pipe 170 and the water outlet pipe 180 may be integrally formed with the valve body 100, or may be separately formed (for example, detachably connected) with the valve body 100, and specifically, the water inlet pipe 170 and the water outlet pipe 180 are integrally formed with the valve body 100. The valve body 100 can be made of hard materials such as ABS, HIPS, PP, PC, POM, etc., or metal or alloy materials, etc., in this embodiment, the valve body 100 is made of POM materials, which have high strength and accuracy, light weight and low cost, and meanwhile, as the material of the valve body 100, it is not easy to rust.
The waste valve 10 is further provided with an end cap 200, the end cap 200 being adapted to cover the valve body 100. The end cover 200 is provided with the throttling flow passage 210, and the throttling flow passage 210 can increase the resistance of the wastewater in the wastewater valve 10, so as to reduce the flow velocity of the wastewater, and increase the cross-sectional area of the throttling flow passage 210, thereby preventing fine solids in the wastewater from blocking a water outlet hole to block the wastewater valve 10. It should be noted that the throttling flow channel 210 can specifically reduce the flow rate of water in two ways: in one approach, the length of the throttling channel 210 is extended. It can be understood that, by extending the extension length of the throttle channel 210, the flow path of the wastewater in the throttle channel 210 is increased, so that the energy loss in the wastewater flowing process is increased, and the effect of reducing the flow speed of the wastewater is achieved. In the second mode, the throttling flow channel 210 is curved. For example, the throttling flow channel 210 is disposed in a spiral shape, or the throttling flow channel 210 is disposed in an S shape. It can be understood that, by configuring the throttling flow channel 210 in a curved shape, the flow resistance of the wastewater flowing in the throttling flow channel 210 is increased, and thus the energy loss during the wastewater flowing process is increased, thereby achieving the effect of reducing the flow speed of the wastewater.
In order to achieve the same throttling flow rate in the closed state of the waste valve 10 under the same inlet water pressure, the total flow resistance of the waste water inside the valve body 100 needs to be equal to that of the waste water in the conventional waste valve. In the case that the structures other than the throttling flow passage 210 in the valve body 100 are the same, the conventional waste water valve throttling with the small hole is mainly throttled in a manner of increasing local resistance by controlling the minimum flow area. In addition to the local resistance caused by the minimum flow area and the increased on-way resistance for prolonging the flow path of the wastewater, the throttling flow channel 210 of the present invention causes additional local resistance due to the change of the flow direction of the wastewater in the throttling flow channel 210, and the throttling area is therefore larger than the throttling of the small hole, so that the wastewater valve 10 is not easily blocked.
Under the same waste water flow (200-300 ml/min), the traditional waste water valve and the waste water valve 10 of the embodiment are subjected to simulation and test, and the measured data are as follows:
TABLE 1 measured parameters of conventional waste valves and waste valves of this example
| Flow path/mm | Throttle area/mm2 | Ratio to conventional waste water valve | |
| Conventional waste water valve | Is free of | 0.13 | 1 |
| Waste water valve of this |
170 | 0.4 | 3 |
From the data in the above table, under the same wastewater flow rate (200-300 ml/min), the throttle area of the wastewater valve with the throttle channel 210 is 3 times of that of the conventional wastewater valve, so that the wastewater valve 10 of the embodiment is not easy to block, and the service life of the wastewater valve 10 can be prolonged.
The throttle channel 210 is respectively communicated with the water inlet cavity 130 and the water outlet cavity 140. When waste water flows into the inlet chamber 130 through the inlet 110, the waste water flows from the inlet chamber 130 to the throttle channel 210 of the end cap 200, then flows from the throttle channel 210 to the outlet chamber 140, and finally flows out of the outlet 120. Of course, in other embodiments, the throttling flow path 210 may not be disposed on the end cover 200, and is not particularly limited thereto. The specific shape, structure and manner of formation of the choke flow passage 210 will be described in detail below.
According to the technical scheme of the invention, the end cover 200 is arranged on the waste water valve 10, the end cover 200 can cover the valve body 100, the throttling flow channel 210 is formed on the end cover 200, waste water enters the water inlet cavity 130 through the water inlet 110 and flows to the throttling flow channel 210 from the water inlet cavity 130, then the waste water flows to the water outlet cavity 140 through the throttling flow channel 210 and finally flows out from the water outlet 120, and the throttling flow channel 210 has a certain length. According to the technical scheme, the throttling flow channel 210 with a certain length is arranged on the end cover 200, so that the cross-sectional area of the throttling flow channel 210 can be larger under the same waste water flow, the waste water valve 10 can be prevented from being blocked, and the service life of the waste water valve 10 can be prolonged.
Referring to fig. 6 to 8, in an embodiment, the end cap 200 is provided with an accommodating cavity 220 adapted to the valve body 100, a groove 221 is formed on an inner wall of the accommodating cavity 220, the end cap 200 is provided with a flow channel inlet 230 and a flow channel outlet 240, the flow channel inlet 230 and the flow channel outlet 240 are communicated with the groove 221, and the groove 221 and an outer wall surface of the valve body 100 enclose to form the throttling flow channel 210.
Specifically, the accommodating cavity 220 is a sinking groove on one surface of the end cover 200, the end cover 200 is further provided with an opening which is matched and mounted with the water inlet pipe 170 and the water outlet pipe 180, and the end cover 200 and the valve body 100 are matched and mounted together through the accommodating cavity 220 and the opening, so that the valve body 100 and the end cover 200 are convenient to disassemble and mount on one hand, and the mounting stability of the electromagnetic valve 10 is also improved on the other hand. The inner wall of the accommodating cavity 220 is formed with a groove 221, and the groove 221 may be formed in the bottom wall of the accommodating cavity 220 or in the side wall of the accommodating cavity 220, which is not particularly limited. The cross section of the groove 221 may be arc-shaped, or may be square or rectangular, and under the condition of the same cross-sectional area, the circumference of the arc-shaped throttling flow channel 210 is the smallest, so that the risk of blockage of the throttling section can be further reduced, and therefore, the cross section of the groove 221 of this embodiment is arc-shaped. When the end cap 200 is fittingly mounted to the valve body 100, the groove 221 surrounds the outer wall surface of the valve body 100 to form a throttle passage 210 for passing waste water.
Further, the groove 221 is formed on a sidewall of the accommodating cavity 220, and the groove 221 is disposed in a curved manner. That is, the groove 221 is located on the side wall of the accommodating chamber 220, and the length of the side wall of the accommodating chamber 220 is longer than that of the bottom wall, so that the length of the throttle flow passage 210 can be further extended by disposing the groove 221 on the side wall of the accommodating chamber 220. Meanwhile, the groove 221 is arranged in a bent manner, so that the length of the throttling flow channel 210 can be further increased, and the flow path of wastewater in the throttling flow channel 210 is increased, so that the energy loss in the wastewater flowing process is increased, the effect of reducing the flow speed of the wastewater is achieved, and the wastewater valve 10 is prevented from being blocked. The throttling flow channel 210 may be disposed in a spiral shape, or the throttling flow channel 210 may be disposed in an S shape, or the throttling flow channel 210 may be disposed in other irregular shapes as long as the length of the throttling flow channel 210 can be extended.
Referring to fig. 8, it is worth mentioning that the groove 221 meanders along the sidewall of the receiving chamber 220 and is provided in multiple layers in the height direction of the waste valve 10. Specifically, in the present embodiment, the groove 221 meanders along the sidewall of the receiving chamber 220, and meanders along the sidewall between the flow channel inlet 230 and the flow channel outlet 240, and the meanders are arranged in parallel between the flow channel segments and in multiple layers in the height direction of the waste valve 10, so that the injection molding of the groove 221 can be facilitated, the production can be facilitated, and the appearance is beautiful.
In one embodiment, the density of the waste water in the waste water valve 10 is ρ, the throttling area of the waste water in the waste water valve 10 is S, the on-way resistance coefficient of the valve body 100 is K1, the on-way resistance coefficient of the groove 221 in a single layer is K2, the local resistance coefficient of the valve body 100 is M1, the local resistance coefficient of the groove 221 in a single layer is M2,the constant a ═ ρ (K1+ M1)/(2 × S)2*3.6*1015) The constant B ═ ρ (K2+ M2)/(2 × S)2*3.6*1015). Further, the pressure difference between the water inlet 110 and the water outlet 120 is Δ p, the number of layers of the grooves 221 is N, the flow rate of the wastewater is Q, and then Q is2＝△ p/(A+BN)。
Specifically, under the condition that the density ρ of the wastewater, the cross-sectional area S of the throttling flow channel 210, the on-way resistance coefficient K1 of the throttling flow channel 210, the on-way resistance coefficient K2 of the single-layer groove 221, the local resistance coefficient M1 of the throttling flow channel 210, the local resistance coefficient M2 of the single-layer groove 221, and the pressure difference Δ p between the water inlet 110 and the water outlet 120 are not changed, the wastewater flow rate of the wastewater valve 10 of the present embodiment is tested, and the measured data are as follows:
TABLE 2 waste water flow of waste water valve, measured parameters
| N/(square) | 1 | 3 | 4 | 5 |
| Q/(ml/min) | 337 | 289 | 271 | 256 |
| Q2/(ml/min)2 | 113569 | 83521 | 73441 | 65536 |
The fitting formula Q2 ═ Δ p/(A + BN) has universality, and the data in the table show that when A takes the value of 3 and B takes the value of 0.67, the effect of the wastewater flow is better.
Referring to fig. 8, in an embodiment, the depth of the accommodating cavity 220 is H, the width of the groove 221 is D1, and the distance between the multiple layers of the grooves 221 is D2, so that H is greater than or equal to N × D1+ (N +1) × D2.
Specifically, when H is 12mm, N is 5mm, D1 is 1mm, and D2 is 1.1mm, the utilization rate of the side wall of the housing chamber 220 is high, and the amount of waste water can be further increased.
Referring to fig. 9, 10 and 12, in an embodiment, the valve body 100 is provided with a first water inlet hole 150, the first water inlet hole 150 is provided with a first water inlet 151 and a first water outlet 152, the first water inlet 151 is provided in the water inlet cavity 130, the first water outlet 152 is provided in an outer wall of the valve body 100, and the first water outlet 152 is abutted with the flow channel inlet 230 so that the first water inlet hole 150 is communicated with the throttling flow channel 210.
Specifically, the inlet chamber 130 of the valve body 100 is opened with a first inlet hole 150, and the first inlet hole 150 is communicated with the throttle channel 210, so that the waste water flowing into the inlet chamber 130 can flow into the outlet chamber 140 through the throttle channel 210 and flow out. The first water inlet hole 150 may be formed in a square shape or a circular shape. Since the first water inlet hole 150 has the first water inlet 151 and the first water outlet 152, the first water inlet 151 is opened on the wall surface of the water inlet chamber 130, the first water outlet 152 is opened on the outer wall surface of the valve body 100, and meanwhile, the first water outlet 152 is butted against the flow path inlet 230, the planes of the first water inlet 151 and the first water outlet 152 are not parallel. In this embodiment, the first water inlet hole 150 is substantially shaped like an "L", but in other embodiments, the first water inlet hole 150 may be shaped like other shapes.
Referring to fig. 9, 11 and 13, in an embodiment, the valve body 100 is further provided with a second water inlet hole 160, one end of the second water inlet hole 160 is opened on the outer wall surface of the valve body 100 and is abutted with the flow passage outlet 240, and the other end of the second water inlet hole 160 is communicated with the water outlet cavity 140. Specifically, the waste water in the throttle channel 210 can flow into the outlet chamber 140 through the second inlet hole 160 and be discharged through the outlet pipe 180. Further, the second water inlet 160 may also be directly connected to the water outlet pipe 180 and then discharged through the water outlet 120.
Referring to fig. 3, in an embodiment, the waste valve 10 further includes a valve core assembly 300, and the valve core assembly 300 is movably disposed in the valve body 100 for opening or closing the water outlet chamber 140.
Specifically, the waste valve 10 may be configured as a solenoid valve, the waste valve 10 has a throttling mode and a flushing mode, and the valve core assembly 300 is movably disposed in the valve body 100 to switch between the throttling mode and the flushing mode. When the waste water valve 10 is an electromagnetic valve, the mode switching of the waste water valve 10 can be controlled only by switching on and off electricity, the structure and the principle are simple, and the operation is easy. Of course, in other embodiments, the waste valve 10 may have other configurations, for example, the waste valve 10 may include a motor that drives the valve core assembly 300 to reciprocate to open or close the outlet chamber 140, thereby switching the waste valve 10 between the throttling mode and the flushing mode.
When the waste water valve 10 is in the throttling mode, the valve body 100 is further provided with a water sealing opening 190, and at the moment, the valve core assembly 300 blocks the water sealing opening 190 to play a role in closing the water outlet cavity 140. At this time, the inlet chamber 130 and the outlet chamber 140 are communicated through the throttle flow path 210, and the waste water enters the inlet chamber 130 through the inlet pipe 170, and then flows to the outlet pipe 180 through the throttle flow path 210 and is discharged.
When the waste valve 10 is in the flushing mode, since the water outlet cavity 140 has a water leakage hole 141 therein, the water outlet cavity 140 and the water outlet 120 are communicated through the water leakage hole 141. In the flush mode, the cartridge assembly 300 opens the spout 190 to function to open the outlet chamber 140. At this time, the water inlet chamber 130 and the water outlet chamber 140 are not only communicated through the throttling flow passage 210, but also directly communicated through the water sealing port 190. The direct communication means that water in the water inlet chamber 130 directly enters the water outlet chamber 140 without passing through the throttling flow channel 210, and because the cross-sectional area of the water sealing port 190 is much larger than that of the throttling flow channel 210, under the action of water pressure, waste water directly flows from the water inlet chamber 130 into the water outlet chamber 140 through the water sealing port 190 and then is discharged through the water outlet 120.
In an embodiment, when the valve core assembly 300 opens the water outlet chamber 130, a first path passing through the throttle flow channel 210 and a second path passing through the water inlet 110, the water inlet chamber 130, the water outlet chamber 140 and the water outlet 120 in sequence are provided between the water inlet 110 and the water outlet 120, and the length of the first path is greater than that of the second path.
Specifically, when the cartridge assembly 300 opens the outlet chamber 130, and the waste valve 10 is in the flushing mode, the inlet chamber 130 and the outlet chamber 140 are not only communicated through the throttling channel 210, but also directly communicated through the water sealing port 190. Under the action of water pressure, the waste water flows directly from the water inlet chamber 130 into the water outlet chamber 140 through the water sealing port 190 and then is discharged through the water outlet 120, and the path is the second path. When the valve core assembly 300 closes the water outlet cavity 130, the waste water valve 10 is in the throttling mode, and waste water enters the water inlet cavity 130 through the water inlet pipe 170, then flows to the water outlet pipe 180 through the throttling flow channel 210 and is discharged, wherein the path is the first path. Since the first path is involved in the throttle flow path 210, the length of the first path is greater than the length of the second path.
Referring to fig. 1 to 3, in an embodiment, the waste water valve 10 further includes a coil assembly 400, the coil assembly 400 is mounted on the valve body 100, an inductance coil 410 and a core iron 420 are disposed in the coil assembly 400, the inductance coil 410 is disposed on the coil assembly 400, and the core iron 420 is disposed in the inductance coil 410 and is used for cooperating with the valve core assembly 300 to open or close the water outlet chamber 140.
Specifically, the inductor 410 is disposed in the coil assembly 400, the inductor 410 is encapsulated by plastic, the core iron 420 is disposed in the inductor 410, and one end of the core iron 420 is connected to the valve core assembly 300 and is used for cooperating with the valve core assembly 300 to open or close the water outlet cavity 140.
Preferably, the waste valve 10 further comprises a support spring 430, the support spring 430 and the core iron 420 are located inside the induction coil 410, and the support spring 430 abuts against one end of the core iron 420 far away from the valve core assembly 300. When the inductance coil 410 is energized, an electromagnetic force for driving the core iron 420 to move is generated, i.e., the core iron 420 can drive the valve core assembly 300 to move. When the inductance coil 410 is energized, the core iron 420 presses the support spring 430 under the action of the electromagnetic force generated by the inductance coil 410, and drives the valve core assembly 300 to move in the direction away from the water sealing port 190, so that the valve core assembly 300 opens the water outlet cavity 140, and the waste water valve 10 is switched to the flushing mode.
When the inductor 410 is powered off, the core iron 420 drives the valve core assembly 300 to move to a position close to the water sealing port 190 under the action of the elastic force of the supporting spring 430, so that the valve core assembly 300 blocks the water sealing port 190, the water outlet cavity 140 is closed, and the waste water valve 10 is switched to the throttling mode. In the case of use, the waste valve 10 is normally in throttling mode.
Referring to fig. 2, 6 and 12, in an embodiment, the waste water valve 10 further includes a fixing member 500, the coil assembly 400, the valve body 100 and the end cap 200 are respectively provided with a fixing hole 600, and the fixing member 500 and the fixing hole 600 are cooperatively connected to fixedly connect the coil assembly 400, the valve body 100 and the end cap 200.
Specifically, the fixing hole 600 may be provided as a screw hole, and the fixing member 500 may be provided as a screw, so that the fixing member 500 and the fixing hole 600 are fittingly coupled to fixedly couple the coil assembly 400, the valve body 100, and the end cap 200 together, thereby further enhancing the reliability of the waste water valve 10.
Referring to fig. 2, according to any of the above embodiments, the waste water valve 10 further includes a sealing ring 700, and the sealing ring 700 is located between the valve body 100 and the end cap 200.
Specifically, the sealing ring 700 may be a transparent rubber pad, an EVA rubber pad, or a PU, PVC, EPDM transparent pad, etc., and is not limited thereto. The outer wall surface of the valve body 100 is provided with an installation position for installing the sealing ring 700, the sealing ring 700 is installed at the installation position, and the shape of the sealing ring 700 is matched with the installation position and is in a circular arrangement. The sealing ring 700 is located between the valve body 100 and the end cap 200, so that the sealing performance between the valve body 100 and the end cap 200 can be improved, the water leakage of the throttling flow passage 210 can be prevented, and the use reliability of the waste water valve 10 can be improved.
The invention also provides a water purifier, which comprises a water purifier body and the waste water valve 10, wherein the waste water valve 10 is arranged in the water purifier body. The specific structure of the waste water valve refers to the above embodiments, and the water purifier adopts all 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. Wherein, the water purifier is any one of purifier, clean drink machine or straight drink machine.
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 (15)
1. A waste valve, characterized in that the waste valve comprises:
the water outlet valve comprises a valve body, a water inlet and a water outlet, wherein a water inlet cavity and a water outlet cavity are arranged in the valve body, the water inlet cavity is communicated with the water inlet, the water outlet cavity is provided with a water leakage hole, and the water outlet cavity is communicated with the water outlet through the water leakage hole; and
the end cover covers the valve body; the end cover is provided with a throttling flow channel, and the water inlet cavity is communicated with the water outlet cavity through the throttling flow channel.
2. A waste valve as claimed in claim 1, wherein said end cap is provided with a receiving cavity adapted to fit with said valve body, an inner wall of said receiving cavity is formed with a recess, said end cap is provided with a flow channel inlet and a flow channel outlet, said flow channel inlet and said flow channel outlet are in communication with said recess, and said recess and an outer wall surface of said valve body enclose to form said throttling flow channel.
3. A waste valve as claimed in claim 2, wherein said recess is formed in a side wall of said housing chamber, said recess being curved.
4. A waste valve as claimed in claim 3, wherein said recess meanders along a side wall of said housing chamber and is provided in a plurality of layers in a height direction of said waste valve.
5. A waste water valve as claimed in claim 4, wherein the density of waste water in said waste water valve is ρ, the restriction area of waste water in said waste water valve is S, the in-path coefficient of resistance of said valve body is K1, the in-path coefficient of resistance of said grooves in a single layer is K2, the local coefficient of resistance of said valve body is M1, and the local coefficient of resistance of said grooves in a single layer is M2, the constants A ═ ρ (K1+ M1)/(2 ═ S2*3.6*1015) The constant B ═ ρ (K2+ M2)/(2 × S)2*3.6*1015) (ii) a The pressure difference between the water inlet and the water outlet is delta p, the number of the layers of the grooves is N, the flow of the wastewater is Q, and then Q is obtained2＝△p/(A+BN)。
6. A waste valve as claimed in claim 5, wherein said chamber has a depth H, said grooves have a width D1, and the spacing between the plurality of said grooves is D2, such that H ≧ N X D1+ (N +1) X D2.
7. The waste water valve of claim 2, wherein said valve body is provided with a first inlet opening having a first inlet opening and a first outlet opening, said first inlet opening being provided in said inlet chamber, said first outlet opening being provided in an outer wall of said valve body, said first outlet opening being in abutment with said flow path inlet such that said first inlet opening is in communication with said restricted flow path.
8. A waste water valve as claimed in claim 7, wherein said valve body is further provided with a second inlet opening, one end of said second inlet opening is opened on the outer wall surface of said valve body and is butted with said flow passage outlet, and the other end of said second inlet opening is communicated with said outlet chamber.
9. A waste valve as claimed in claim 1, further comprising a valve core assembly movably disposed within said valve body for opening or closing said outlet chamber.
10. The waste valve of claim 9, wherein when the cartridge assembly opens the outlet chamber, there is a first path through the restricted flow passage between the inlet port and the outlet port and a second path through the inlet port, the inlet chamber, the outlet chamber and the outlet port in sequence, the first path having a length greater than the second path.
11. A waste valve as claimed in claim 9, further comprising a coil assembly, said coil assembly being mounted to said valve body, an inductor coil being disposed within said coil assembly, and a core iron being disposed on said coil assembly, said core iron being located within said inductor coil for cooperating with said valve core assembly to open or close said outlet chamber.
12. A waste valve as claimed in any of claims 1 to 11, further comprising a fixing member, wherein fixing holes are provided in said coil assembly, said valve body and said end cap, respectively, and said fixing member is engaged with said fixing holes to fixedly connect said coil assembly, said valve body and said end cap.
13. A waste valve as claimed in any of claims 1 to 11, further comprising a sealing ring, said sealing ring being located between said valve body and said end cap.
14. A water purifier, characterized in that the water purifier comprises:
a water purifier body; and
the waste valve of any of claims 1-13, disposed within the water purifier body.
15. The water purifier of claim 14, wherein the water purifier is any one of a water purifier, a water fountain, or a direct drinking fountain.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210064818.4A CN114413027B (en) | 2022-01-19 | 2022-01-19 | Waste water valve and water purifier |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210064818.4A CN114413027B (en) | 2022-01-19 | 2022-01-19 | Waste water valve and water purifier |
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| CN114413027B CN114413027B (en) | 2024-06-21 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108006235A (en) * | 2016-12-21 | 2018-05-08 | 佛山市顺德区美的饮水机制造有限公司 | For water purifier wastewater valve and there is its water purifier |
| CN109654233A (en) * | 2019-01-25 | 2019-04-19 | 浙江科博电器有限公司 | Wastewater valve with scale-deposit-preventing and silencing function |
| CN111059349A (en) * | 2019-12-20 | 2020-04-24 | 浙江科博电器有限公司 | Scale-proof noise-proof waste water valve |
| CN111336268A (en) * | 2018-12-19 | 2020-06-26 | 佛山市顺德区美的饮水机制造有限公司 | Waste water valve and water purifier |
| CN111336278A (en) * | 2018-12-19 | 2020-06-26 | 佛山市顺德区美的饮水机制造有限公司 | Waste water valve and water purifier |
| CN211901682U (en) * | 2020-04-01 | 2020-11-10 | 佛山市美的清湖净水设备有限公司 | Waste water valve and water purification equipment |
| CN216812962U (en) * | 2022-01-19 | 2022-06-24 | 佛山市美的清湖净水设备有限公司 | Waste water valve and water purifier |
-
2022
- 2022-01-19 CN CN202210064818.4A patent/CN114413027B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108006235A (en) * | 2016-12-21 | 2018-05-08 | 佛山市顺德区美的饮水机制造有限公司 | For water purifier wastewater valve and there is its water purifier |
| CN111336268A (en) * | 2018-12-19 | 2020-06-26 | 佛山市顺德区美的饮水机制造有限公司 | Waste water valve and water purifier |
| CN111336278A (en) * | 2018-12-19 | 2020-06-26 | 佛山市顺德区美的饮水机制造有限公司 | Waste water valve and water purifier |
| CN109654233A (en) * | 2019-01-25 | 2019-04-19 | 浙江科博电器有限公司 | Wastewater valve with scale-deposit-preventing and silencing function |
| CN111059349A (en) * | 2019-12-20 | 2020-04-24 | 浙江科博电器有限公司 | Scale-proof noise-proof waste water valve |
| CN211901682U (en) * | 2020-04-01 | 2020-11-10 | 佛山市美的清湖净水设备有限公司 | Waste water valve and water purification equipment |
| CN216812962U (en) * | 2022-01-19 | 2022-06-24 | 佛山市美的清湖净水设备有限公司 | Waste water valve and water purifier |
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