CN218971873U - Water valve assembly and gas water heater - Google Patents
Water valve assembly and gas water heater Download PDFInfo
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- CN218971873U CN218971873U CN202223575236.7U CN202223575236U CN218971873U CN 218971873 U CN218971873 U CN 218971873U CN 202223575236 U CN202223575236 U CN 202223575236U CN 218971873 U CN218971873 U CN 218971873U
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Abstract
The utility model relates to the technical field of gas water heaters, and discloses a water valve assembly and a gas water heater. The water valve assembly comprises a main shell and a water valve core, wherein the main shell comprises a water inlet, a water outlet and a valve core cavity communicated with the water inlet and the water outlet, the main shell is also provided with a large water flow channel and a small water flow channel, the large water flow channel is communicated with the valve core cavity and the water outlet, the small water flow channel is communicated with the valve core cavity and the large water flow channel, the inner diameter of the water inlet end of the small water flow channel is larger than the inner diameter of the water outlet end, and the diameter of the flow channel of the small water flow channel is smaller than the inner diameter of the water inlet end and larger than the inner diameter of the water outlet end; the water valve core is arranged in the valve core cavity in a penetrating way, and the water valve core can be selectively communicated with the water inlet and the large water flow channel or the water inlet and the small water flow channel. The flow rate of the water flow can be gradually increased when the flow rate is smaller, so that the water pressure is gradually reduced, the water flow pressure can be ensured to be higher than the saturated steam pressure under the condition of the water flow, and therefore, bubbles can be reduced when the water flow passes through the small water flow channel, and the noise of the water valve assembly is reduced.
Description
Technical Field
The utility model relates to the technical field of gas water heaters, in particular to a water valve assembly and a gas water heater.
Background
The water path system of the gas water heater (flue type) generally uses water valves to regulate large and small water flow according to different use requirements.
In the related art, through holes with different diameters are arranged on a valve core of a water valve and are generally divided into a large water flow hole and a small water flow hole, when the gas water heater is switched to use with small water flow, under the condition of certain water pressure, water flows through the small water flow hole and flows into a small water flow channel, the water flow speed is rapidly increased, the pressure is reduced along with the increase of the flow speed, the pressure is rapidly reduced, under the high pressure difference environment, when the pressure is smaller than the saturated steam pressure of water, the water can flash evaporation phenomenon to generate a large number of bubbles, along with the increase of the diameter of a flow channel passing through the small water flow channel, the water flow speed is slowed down, the pressure is gradually increased, and the bubbles generated by the flash evaporation phenomenon are collapsed (also called cavitation) under the action of the pressure, so that vibration and noise are generated, and the user experience is influenced.
Therefore, there is a need for a water valve assembly and a gas water heater that solve the above problems.
Disclosure of Invention
One of the technical problems to be solved by the utility model is to provide a water valve assembly which can effectively solve the flash evaporation and cavitation phenomena, and has quieter use process and more stable water pressure.
The second technical problem to be solved by the utility model is to provide the gas water heater which can effectively solve the problems of vibration and noise and has better user experience.
The first technical problem is solved by the following technical scheme:
a water valve assembly, comprising:
the main shell comprises a water inlet, a water outlet and a valve core cavity communicated with the water inlet and the water outlet, the main shell is also provided with a large water flow channel and a small water flow channel, the large water flow channel is communicated with the valve core cavity and the water outlet, the small water flow channel is communicated with the valve core cavity and the large water flow channel, the inner diameter of the water inlet end of the small water flow channel is larger than the inner diameter of the water outlet end, and the diameter of the flow channel of the small water flow channel is smaller than the inner diameter of the water inlet end and larger than the inner diameter of the water outlet end;
the water valve core is arranged in the valve core cavity in a penetrating mode, and the water valve core can be selectively communicated with the water inlet and the large water flow channel or the water inlet and the small water flow channel.
Compared with the background technology, the water valve assembly has the beneficial effects that:
the water inlet and the water outlet are arranged on the shell, so that water flows into and out of the water valve assembly; through setting up big water runner and little water runner on the casing, cooperation water valve core selectivity intercommunication water inlet and big water runner or water inlet and little water runner, and then realize the regulation to rivers. Specifically, when the water valve core is communicated with the water inlet and the large water flow channel, water flows through the water valve core and the large water flow channel in sequence at a larger flow rate, and finally flows out of the water outlet; when the water valve core is communicated with the water inlet and the small water flow channel, water flows through the water valve core and the small water flow channel in sequence at a smaller flow rate, and finally flows out of the water outlet through the large water flow channel. The water inlet end inner diameter of the small water flow passage is larger than the water outlet end inner diameter, the flow passage diameter of the small water flow passage is smaller than the water inlet end inner diameter and larger than the water outlet end inner diameter, and the water inlet end inner diameter is set so that the flow speed is gradually increased when the water flow flows through the small water flow passage, the water flow is gradually reduced in pressure, the water flow pressure is not suddenly changed to be lower than the saturated steam pressure under the condition that water is located, the water flow pressure can be ensured to be higher than the saturated steam pressure under the condition that the water flow pressure is located, therefore, flash evaporation phenomenon can not occur when the water flow passes through the small water flow passage, cavitation phenomenon can not occur when water flows into the large water flow passage, and noise generated when the water valve assembly works is reduced.
In one embodiment, the water valve core is provided with a large water through hole and a small water through hole, the diameter of the large water through hole is larger than that of the small water through hole, the large water through hole is used for communicating the water inlet with the large water flow channel, and the small water through hole is used for communicating the water inlet with the small water flow channel.
In one embodiment, the inner diameter of the water inlet end of the small water flow channel is smaller than the aperture of the small water through hole.
In one embodiment, the small water flow channel comprises a first section communicated with the small water through hole, a second section communicated with the large water flow channel and a third section connected between the first section and the second section, and the diameters of the flow channels of the first section, the third section and the second section are sequentially reduced.
In one embodiment, the water valve assembly further comprises a sub-housing detachably connected to the main housing, and the third section is disposed on the sub-housing.
In one embodiment, the large water through holes and the small water through holes are arranged at intervals along the axial direction of the water valve core and are staggered along the circumferential direction of the water valve core.
In one embodiment, a first sealing ring is sleeved on the circumference of the water valve core, and the first sealing ring is arranged between the large water through hole and the small water through hole.
In one embodiment, a second sealing ring is arranged between the sub-housing and the main housing.
In one embodiment, the water valve assembly further comprises a water flow sensor assembly; the water flow sensor assembly comprises a magnetic rotor and a detection element, wherein the magnetic rotor is arranged in the main shell, and the detection element is arranged outside the main shell.
The second technical problem is solved by the following technical scheme:
the gas water heater comprises a heat exchanger assembly and the water valve assembly according to any scheme, wherein the water valve assembly is arranged at the water inlet end of the heat exchanger assembly.
Compared with the background technology, the gas water heater has the beneficial effects that:
by arranging the water valve assembly, the water valve assembly has smaller vibration and noise when water is used at a small flow rate, and the user experience is better.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings needed in the description of the embodiments of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the contents of the embodiments of the present utility model and these drawings without inventive effort for those skilled in the art.
FIG. 1 is a cross-sectional view of a water valve assembly provided in accordance with an embodiment of the present utility model;
FIG. 2 is a schematic illustration of a water valve cartridge of a water valve assembly provided in accordance with an embodiment of the present utility model;
FIG. 3 is a schematic view of a main housing and a sub-housing of a water valve assembly according to an embodiment of the present utility model;
FIG. 4 is a cross-sectional view taken along the direction A-A in FIG. 3;
FIG. 5 is a cross-sectional view taken in the direction B-B in FIG. 3;
FIG. 6 is a schematic view of a sub-housing of a water valve assembly according to an embodiment of the present utility model;
FIG. 7 is a schematic diagram of a gas water heater according to an embodiment of the present utility model.
Description of the reference numerals:
1. a heat exchanger assembly;
100. a main housing; 110. a water inlet; 120. a water outlet; 130. a spool cavity; 140. a large water flow passage; 150. a small water flow passage; 151. a first section; 152. a second section;
200. a water valve core; 210. large water holes; 220. a small water through hole; 230. a first seal ring; 240. a third seal ring; 250. a fourth seal ring; 260. an adjusting shaft; 270. a first latch; 280. a pressing plate;
300. a sub-shell; 310. a third section; 311. an inlet; 312. an outlet; 320. a second seal ring; 330. a second through hole; 331. a bolt;
410. a magnetic rotor; 420. a detection element; 430. a limiting snap ring; 440. clamping springs;
500. a water inlet joint; 510. a second latch; 520. and a fifth sealing ring.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
In the description of the present application, it should be understood that the terms "horizontal," "inner," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
As shown in fig. 1 to 6, the present embodiment provides a water valve assembly, which includes a main housing 100 and a water valve core 200, wherein the main housing 100 includes a water inlet 110, a water outlet 120, and a valve core cavity 130 communicating with both the water inlet 110 and the water outlet 120, the main housing 100 is further provided with a large water flow channel 140 and a small water flow channel 150, the large water flow channel 140 communicates with the valve core cavity 130 and the water outlet 120, the small water flow channel 150 communicates with the valve core cavity 130 and the large water flow channel 140, the inner diameter of the water inlet end of the small water flow channel 150 is larger than the inner diameter of the water outlet end, and the flow channel diameter of the small water flow channel 150 is smaller than the inner diameter of the water inlet end and larger than the inner diameter of the water outlet end; the water valve core 200 is inserted into the valve core cavity 130, and the water valve core 200 can selectively communicate the water inlet 110 with the large water flow channel 140 or the water inlet 110 with the small water flow channel 150.
By providing the water inlet 110 and the water outlet 120 on the housing, water flows into and out of the water valve assembly; by arranging the large water flow channel 140 and the small water flow channel 150 on the shell, the water valve core 200 is matched to selectively communicate the water inlet 110 and the large water flow channel 140 or the water inlet 110 and the small water flow channel 150, so that the water flow is regulated. Specifically, when the water valve cartridge 200 communicates with the water inlet 110 and the large water flow channel 140, water flows through the water valve cartridge 200 and the large water flow channel 140 in sequence at a relatively large flow rate, and finally flows out of the water outlet 120; when the water valve core 200 is communicated with the water inlet 110 and the small water flow channel 150, water flows through the water valve core 200 and the small water flow channel 150 in sequence at a smaller flow rate, and finally flows out of the water outlet 120 through the large water flow channel 140. The inner diameter of the water inlet end of the small water flow channel 150 is larger than the inner diameter of the water outlet end, the flow channel diameter of the small water flow channel 150 is smaller than the inner diameter of the water inlet end and larger than the inner diameter of the water outlet end, so that the flow velocity is gradually increased when the water flow flows through the small water flow channel 150, gradual depressurization of the water flow is realized, the water flow pressure is not suddenly changed to be lower than the saturated steam pressure under the condition of water, the water flow pressure is ensured to be higher than the saturated steam pressure under the condition of water, the flash evaporation phenomenon is not caused when the water flow passes through the small water flow channel 150, cavitation phenomenon is not caused when the water flow flows into the large water flow channel 140, and noise generated when the water valve assembly works is reduced.
As an alternative to a water valve assembly, in order to allow the water valve cartridge 200 to accommodate the large water channel 140 and the small water channel 150, as shown in fig. 2, the water valve cartridge 200 is provided with a large water through hole 210 and a small water through hole 220, the diameter of the large water through hole 210 is larger than that of the small water through hole 220, the large water through hole 210 is used for communicating the water inlet 110 with the large water channel 140, and the small water through hole 220 is used for communicating the water inlet 110 with the small water channel 150.
Further, the inner diameter of the water inlet end of the small water flow channel 150 is smaller than the aperture of the small water through hole 220. When the small water flow uses water, the water flow can flow into the small water flow channel 150 with smaller inner diameter through the small water through hole 220 with larger aperture, so the arrangement is beneficial to increasing the number of depressurization stages, so that the water flow can be depressurized in multiple stages, the pressure of the water flow is gradually reduced, and the flash phenomenon is reduced or even avoided. Similarly, the inner diameter of the water inlet end of the large water flow channel 140 is smaller than the aperture of the large water through hole 210, so that the pressure of the water flow can be reduced when the large water flow is used.
In the related art, large and small water flow holes of a valve core of a water valve are designed on the same horizontal plane, and through different angle staggering positions, a user adjusts the water outlet flow of the gas water heater by rotating the valve core by different angles. When the valve is switched to be used with small flow, due to the effect of pressure, fluid can flow into the small flow hole through the fit clearance between the large flow hole, the valve core and the shell, so that the small flow is unstable, and the temperature rise cannot meet the standard requirement; meanwhile, the long-time vibration impact can lead to mechanical fatigue of the structural member, and the service life is influenced.
Therefore, in the present embodiment, the large water through holes 210 and the small water through holes 220 are disposed at intervals along the axial direction of the water valve core 200, and are staggered along the circumferential direction of the water valve core 200. The occurrence of water channeling is effectively avoided, so that the water flow and the water temperature are more stable when the water is used at a small flow rate; meanwhile, the impact of water channeling vibration on the water valve core 200 is reduced, and the service life of the water valve core 200 is prolonged.
Preferably, the water valve core 200 is circumferentially sleeved with a first sealing ring 230, and the first sealing ring 230 is arranged between the large water through hole 210 and the small water through hole 220. The first sealing ring 230 is disposed between the large water through hole 210 and the small water through hole 220, so as to seal the large water through hole 210 and the small water through hole 220, thereby further avoiding water channeling.
Optionally, a third sealing ring 240 and a fourth sealing ring 250 are further sleeved on the circumference of the water valve core 200, the third sealing ring 240 is disposed at one end of the small water through hole 220 far away from the large water through hole 210, and the fourth sealing ring 250 is disposed at one end of the large water through hole 210 far away from the small water through hole 220, and is all used for sealing between the water valve core 200 and the inner wall of the valve core cavity 130.
Further, to realize the adjustment of the water valve cartridge 200, an adjusting shaft 260 is further provided at one end of the water valve cartridge 200, and the adjusting shaft 260 is connected to the water valve cartridge 200 through a first latch 270. The adjustment shaft 260 is provided protruding from the water valve assembly to facilitate circumferential adjustment of the water valve cartridge 200.
In this embodiment, the water valve core 200 is connected to the main housing 100 through the pressing plate 280, so that the water valve core 200 can be placed in the valve core cavity 130, and the adjusting shaft 260 is protruding from one end of the pressing plate 280 away from the main housing 100. The pressing plate 280 is detachably connected with the main housing 100 by screws and nuts, and the connection is more convenient and reliable.
As an alternative to a water valve assembly, as shown in fig. 3 to 6, the small water flow channel 150 includes a first segment 151 communicating with the small water through hole 220, a second segment 152 communicating with the large water flow channel 140, and a third segment 310 connected between the first segment 151 and the second segment 152, and the diameters of the channels of the first segment 151, the third segment 310 and the second segment 152 are sequentially reduced, so that the water flowing therein can be gradually accelerated and depressurized to ensure that the water pressure is greater than the saturated vapor pressure in the state where the water pressure is located, thereby reducing or even avoiding the flash evaporation phenomenon.
Further, the water valve assembly further comprises a sub-housing 300, a third section 310 is arranged on the sub-housing 300, and two ends of the third section 310 are respectively communicated with the first section 151 and the second section 152. It will be appreciated that at small flows of water, the water flow can flow through the first segment 151, the third segment 310 and the second segment 152 in sequence. By providing the sub-housing 300, both the first section 151 and the second section 152 can be machined in a straight line, facilitating machining of the small water flow channel 150.
Illustratively, the sub-housing 300 is detachably connected to the main housing 100. The main casing 100 is provided with a first through hole, the sub-casing 300 is provided with a second through hole 330, and the bolt 331 passes through the first through hole and the second through hole 330 and is fixed by a nut, so that the connection is more convenient and reliable.
Specifically, the third section 310 includes an inlet 311 and an outlet 312, the inlet 311 having an inner diameter greater than the inner diameter of the outlet 312 to accommodate the gradual decrease in the inner diameter of the small water flow passage 150.
Preferably, to ensure sealing between the third section 310 and the first and second sections 151 and 152, a second sealing ring 320 is provided between the sub-housing 300 and the main housing 100.
As an alternative to a water valve assembly, as shown in fig. 1, the water valve assembly further includes a water flow sensor assembly; illustratively, the water flow sensor assembly includes a magnetic rotor 410 and a detection element 420, the magnetic rotor 410 is disposed within the main housing 100, and the detection element 420 is disposed outside the main housing 100. By providing the water flow sensor assembly in the form of a magnetic rotor 410 and a detection element 420, installation and removal are facilitated. The detection principle of the magnetic rotor 410 and the detection element 420 is the prior art, and will not be described herein.
Specifically, the magnetic rotor 410 is fixed in the main housing 100 by a limit snap ring 430. The detection element 420 is a hall element, and is fixed to the outside of the main housing 100 by a clamp spring 440.
Further, the water valve assembly further includes a water inlet connector 500, and the water inlet connector 500 is connected with the water inlet 110. The water inlet joint 500 is more convenient for connection between the water inlet 110 and other water supply equipment, and improves the universality of the water valve assembly. Optionally, the water inlet joint 500 is connected to the main housing 100 by a second latch 510. In order to improve the tightness between the water inlet joint 500 and the water inlet 110, a fifth sealing ring 520 is further provided between the water inlet joint 500 and the water inlet 110.
As shown in fig. 7, this embodiment also discloses a gas water heater, which includes a heat exchanger assembly 1 and a water valve assembly according to any one of the above schemes, wherein the water valve assembly is disposed at the water inlet end of the heat exchanger assembly 1. The gas water heater provided with the water valve assembly has smaller vibration and noise when the water is used at a small flow rate, and the user experience is better.
In the above water heater in a high flow mode, water flows into the water inlet 110 through the water inlet joint 500, flows through the limit clamp ring 430, the magnetic rotor 410, the large water through hole 210 of the water valve core 200, the large water channel 140 on the main housing 100 in sequence, and finally flows out of the water outlet 120 to enter the heat exchanger assembly; in the high-flow mode, water flows through the water inlet joint 500, enters the water inlet 110, sequentially flows through the limit clamp ring 430, the magnetic rotor 410, the lower water through hole of the water valve core 200, the first section 151 of the main housing 100, the third section 310 of the sub-housing 300, the second section 152 of the main housing 100 and the large water flow channel 140 on the main housing 100, and finally flows out of the water outlet 120 to enter the heat exchanger assembly.
In the specific content of the above embodiment, any combination of the technical features may be performed without contradiction, and for brevity of description, all possible combinations of the technical features are not described, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing detailed description of the embodiments presents only a few embodiments of the present utility model, which are described in some detail and are not intended to limit the scope of the present utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (10)
1. The water valve assembly, its characterized in that includes:
the main shell (100) comprises a water inlet (110), a water outlet (120) and a valve core cavity (130) communicated with the water inlet (110) and the water outlet (120), the main shell (100) is further provided with a large water flow channel (140) and a small water flow channel (150), the large water flow channel (140) is communicated with the valve core cavity (130) and the water outlet (120), the small water flow channel (150) is communicated with the valve core cavity (130) and the large water flow channel (140), the inner diameter of the water inlet end of the small water flow channel (150) is larger than the inner diameter of the water outlet end, and the diameter of the flow channel of the small water flow channel (150) is smaller than the inner diameter of the water inlet end and larger than the inner diameter of the water outlet end;
the water valve core (200) is arranged in the valve core cavity (130) in a penetrating mode, and the water valve core (200) can be selectively communicated with the water inlet (110) and the large water flow channel (140) or the water inlet (110) and the small water flow channel (150).
2. The water valve assembly of claim 1, wherein the water valve core (200) is provided with a large water through hole (210) and a small water through hole (220), the diameter of the large water through hole (210) is larger than that of the small water through hole (220), the large water through hole (210) is used for communicating the water inlet (110) with the large water flow channel (140), and the small water through hole (220) is used for communicating the water inlet (110) with the small water flow channel (150).
3. The water valve assembly of claim 2, wherein the water inlet end inner diameter of the small water flow passage (150) is smaller than the aperture of the small water passage hole (220).
4. The water valve assembly of claim 2, wherein the small water flow passage (150) includes a first section (151) for communicating with the small water passage (220), a second section (152) for communicating with the large water flow passage (140), and a third section (310) engaged between the first section (151) and the second section (152), the flow passage diameters of the first section (151), the third section (310), and the second section (152) decreasing in sequence.
5. The water valve assembly of claim 4, further comprising a sub-housing (300), the sub-housing (300) being removably coupled to the main housing (100), the third section (310) being disposed on the sub-housing (300).
6. The water valve assembly of claim 2, wherein the large water passage holes (210) and the small water passage holes (220) are disposed at intervals along an axial direction of the water valve core (200) and staggered along a circumferential direction of the water valve core (200).
7. The water valve assembly of claim 6, wherein the water valve core (200) is circumferentially sleeved with a first seal ring (230), the first seal ring (230) being disposed between the large water passage (210) and the small water passage (220).
8. The water valve assembly of claim 5, wherein a second seal ring (320) is disposed between the sub-housing (300) and the main housing (100).
9. The water valve assembly of any one of claims 1-8, further comprising a water flow sensor assembly; the water flow sensor assembly comprises a magnetic rotor (410) and a detection element (420), wherein the magnetic rotor (410) is arranged in the main shell (100), and the detection element (420) is arranged outside the main shell (100).
10. Gas water heater, characterized by comprising a heat exchanger assembly (1) and a water valve assembly according to any of claims 1-9, said water valve assembly being arranged at the water inlet end of said heat exchanger assembly (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223575236.7U CN218971873U (en) | 2022-12-30 | 2022-12-30 | Water valve assembly and gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223575236.7U CN218971873U (en) | 2022-12-30 | 2022-12-30 | Water valve assembly and gas water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218971873U true CN218971873U (en) | 2023-05-05 |
Family
ID=86161875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223575236.7U Active CN218971873U (en) | 2022-12-30 | 2022-12-30 | Water valve assembly and gas water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218971873U (en) |
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2022
- 2022-12-30 CN CN202223575236.7U patent/CN218971873U/en active Active
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