CN112833216B - Three-way valve and water heater - Google Patents
Three-way valve and water heater Download PDFInfo
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- CN112833216B CN112833216B CN202110014219.7A CN202110014219A CN112833216B CN 112833216 B CN112833216 B CN 112833216B CN 202110014219 A CN202110014219 A CN 202110014219A CN 112833216 B CN112833216 B CN 112833216B
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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
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
- F16K11/0716—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides with fluid passages through the valve member
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/041—Construction of housing; Use of materials therefor of sliding valves cylindrical slide valves
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
- F17D1/14—Conveying liquids or viscous products by pumping
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
Abstract
The invention discloses a three-way valve and a water heater, wherein the three-way valve is provided with a water inlet, a first water outlet and a second water outlet; the three-way valve comprises a sleeve, a first spring and a second spring, a first opening and a second opening are arranged on the side wall of the sleeve, the first opening is used for communicating with the first water outlet, and the second opening is used for communicating with the second water outlet; the first spring and the second spring are arranged at two ends of the sleeve relatively, and the connecting end of the sleeve and the first spring or the connecting end of the second spring are communicated with the water inlet, so that water flow at the water inlet pushes the sleeve to move. When the circulating booster pump is applied to the water heater, the second opening and the water return pipeline can be closed or communicated according to the water flow, so that the water return pipeline is sealed by the sleeve in the boosting mode, the circulating booster pump can stop working quickly after the water outlet faucet is turned off, the circulating booster pump does not need to work for a period of time, extra noise is not brought, and fuel gas is saved.
Description
Technical Field
The invention relates to a three-way valve and a water heater.
Background
The household water heater is a common hot water supply device in daily life, but some districts have the problem of insufficient water pressure, and particularly after passing through a gas water heater, the water pressure of tap water becomes lower. The solution of some existing products is to add a booster pump to a gas water heater to increase the water outlet pressure of the water heater. For the circulating pressurization gas water heater, after normal water use, after a water tap is closed, because of the existence of the water return pipe, the water heater can not judge whether to stop working or not according to water flow, and only can heat water from the water return pipe to the water inlet of the water heater to more than 32 degrees, the machine can stop working, and gas is wasted.
Disclosure of Invention
The invention provides a three-way valve and a water heater, aiming at overcoming the defect that the water heater in the prior art cannot judge whether to stop working according to water flow.
The invention solves the technical problems through the following technical scheme:
a three-way valve having a water inlet, a first water outlet, and a second water outlet; it is characterized in that the three-way valve comprises a sleeve, a first spring and a second spring,
a first opening and a second opening are arranged on the side wall of the sleeve, the first opening is used for being communicated with the first water outlet, and the second opening is used for being communicated with the second water outlet;
the first spring and the second spring are oppositely arranged at two ends of the sleeve, and the connecting end of the sleeve and the first spring or the second spring is communicated with the water inlet, so that water flow of the water inlet pushes the sleeve to move.
In the scheme, the sleeve is pushed to move by water flow in the water inlet, and the first spring and the second spring can limit the moving range of the sleeve and can provide restoring force for the sleeve; so that the first opening and the first water outlet and the second opening and the second water outlet are communicated or closed through the sleeve, the first spring and the second spring. When it is applied to during the water heater, can close or communicate second opening and return water pipeline according to the size of discharge for under the pressure boost mode, the return water pipeline is sealed by the sleeve pipe, and after turning off out tap, the very fast stop work that can the stop work of circulation booster pump need not work a period again, can not bring extra noise, has also practiced thrift the gas.
Preferably, the first spring and the second spring are respectively arranged at two axial ends of the sleeve, and the axial length of the first opening on the side wall of the sleeve is larger than that of the second opening on the side wall of the sleeve.
In this scheme, first spring and second spring set up along sheathed tube axial direction to first open-ended axial length is greater than second open-ended axial length, makes at the in-process that the sleeve pipe removed, and first opening can communicate with first delivery port all the time. When the water heater water outlet device is applied to a water heater, the first water outlet can be connected with a water outlet pipeline of the water heater, so that water can be normally discharged from the first water outlet in a circulation mode or a pressurization mode of the water heater.
Preferably, the elastic force of the first spring and the elastic force of the second spring are equal.
In the scheme, the elastic forces of the first spring and the second spring are equal, so that the sleeve can keep relatively stable and moves under the pushing of water flow.
Preferably, the three-way valve further includes a cylindrical housing, the first spring, the sleeve, and the second spring are sequentially disposed in the housing along an axial direction of the housing, and both ends of the first spring and both ends of the second spring are respectively connected to the housing and the sleeve.
In this scheme, the three-way valve has a casing, and first spring, sleeve pipe and second spring all set up in this casing along the axial direction, and the sleeve pipe can remove in the casing.
Preferably, the outer side wall of the sleeve is attached to the inner side wall of the housing.
In this scheme, the lateral wall of pipe box and the inboard wall laminating of casing mutually, the casing plays limiting displacement to the pipe box for the sleeve pipe can be along axial displacement, and does not take place the skew.
Preferably, the water inlet is disposed at one axial end of the housing, the first water outlet and the second water outlet are disposed on a side wall of the housing, and the first water outlet and the second water outlet are not overlapped with each other.
In this scheme, first delivery port and second delivery port are each other not coincide for the sleeve pipe can communicate first delivery port and second delivery port respectively, thereby the second delivery port can be switched on or closed.
Preferably, the shell comprises a shell body and an end cover, the end cover is arranged at one end of the shell body, and the outer wall of the other end of the shell body is provided with threads for being connected with a water inlet device.
In the scheme, the end cover is arranged at one end of the shell body, so that the sleeve, the first spring and the second spring are conveniently arranged in the shell; the other end of the shell body is provided with threads, so that the shell body can be conveniently connected with other devices, such as a hot water pipeline of a water heater.
Preferably, two ends of the first spring are respectively connected with the end cover and the sleeve; the inner wall of the shell body, which is provided with one end with threads, is provided with a step, and the two ends of the second spring are respectively connected with the step and the sleeve.
In this scheme, can fixed connection or butt second spring through the step, the fixed of the second spring of being convenient for. In specific implementation, two ends of the first spring and the second spring can be fixedly connected or abutted with the end cover and the sleeve respectively.
The invention also provides a water heater which is characterized by comprising the three-way valve.
Preferably, the water heater further comprises a booster pump, a hot water pipeline, a water return pipeline and a water outlet pipeline, the booster pump is connected to the upstream of the hot water pipeline, the downstream of the hot water pipeline is communicated with the water inlet, the water return pipeline is communicated with the second water outlet, and the water outlet pipeline is communicated with the first water outlet.
In this scheme, the water heater adopts foretell three-way valve, can close or communicate second opening and return water pipeline according to the size of discharge for under the pressure boost mode, the return water pipeline is sealed by the sleeve pipe, turns off out behind the tap, and the circulation booster pump can stop work very fast, does not need to work a period again, can not bring extra noise, has also practiced thrift the gas.
Preferably, the water heater includes a circulation mode and a pressurization mode;
in the circulation mode, the sleeve is pushed to move by water flow at the water inlet, the first opening is communicated with the first water outlet, and the second opening is communicated with the second water outlet;
under the pressurization mode, the water flow at the water inlet pushes the sleeve to move, the first opening is communicated with the first water outlet, and the second opening and the second water outlet are closed in a staggered mode.
The positive progress effects of the invention are as follows: the sleeve is pushed to move by water flow in the water inlet, and the first spring and the second spring can limit the moving range of the sleeve on one hand and can also provide restoring force for the sleeve on the other hand; so that the first opening and the first water outlet and the second opening and the second water outlet are communicated or closed through the sleeve, the first spring and the second spring. When it is applied to during the water heater, can close or communicate second opening and return water pipeline according to the size of discharge for under the pressure boost mode, the return water pipeline is sealed by the sleeve pipe, and after turning off out tap, the very fast stop work that can the stop work of circulation booster pump need not work a period again, can not bring extra noise, has also practiced thrift the gas.
Drawings
FIG. 1 is a schematic diagram of a three-way valve in an unused water mode according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a three-way valve provided in an embodiment of the present invention in a circulation mode;
FIG. 3 is a schematic diagram of a three-way valve provided in an embodiment of the present invention in a boost mode;
fig. 4 is a schematic view of a three-way valve applied to a water heater according to an embodiment of the present invention.
Description of the reference numerals
Water heater 1
Three-way valve 10
A second water outlet 113
End cap 120
First opening 210
Return line 40
One-way valve 70
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
An embodiment of the present invention provides a three-way valve 10, as shown in fig. 1 to 3, the three-way valve 10 has a water inlet 111, a first water outlet 112, and a second water outlet 113; the three-way valve 10 comprises a sleeve 200, a first spring 300 and a second spring 400, wherein a first opening 210 and a second opening 220 are arranged on the side wall of the sleeve 200, the first opening 210 is used for being communicated with the first water outlet 112, and the second opening 220 is used for being communicated with the second water outlet 113; the first spring 300 and the second spring 400 are oppositely arranged at two ends of the sleeve 200, and the connecting ends of the sleeve 200 and the first spring 300 or the second spring 400 are communicated with the water inlet 111, so that the water flow of the water inlet 111 pushes the sleeve 200 to move. The sleeve 200 is pushed to move by the water flow in the water inlet 111, and the first spring 300 and the second spring 400 can limit the moving range of the sleeve 200 on one hand and can also provide restoring force for the sleeve 200 on the other hand; so that the first opening 210 and the first and second water outlets 112 and 220 and the second water outlet 113 are communicated or closed by the sleeve 200, the first spring 300 and the second spring 400.
As a preferred embodiment, as shown in fig. 1, the first spring 300 and the second spring 400 are respectively disposed at two axial ends of the sleeve 200, and the axial length of the first opening 210 on the sidewall of the sleeve 200 is greater than the axial length of the second opening 220 on the sidewall of the sleeve 200. Therefore, the first opening 210 can be always communicated with the first water outlet 112 during the moving of the sleeve 200, and the second opening 220 can be opened or closed due to the moving distance of the sleeve 200.
The three-way valve 10 of the present invention can be used in different applications as desired, and the three-way valve 10 of the present invention will be further described below in its application to the water heater 1.
When the booster water heater is applied to the water heater 1, as shown in fig. 4, especially when the booster water heater 1 is circulated, the water heater 1 includes a booster pump 20, a hot water pipeline 30, a return water pipeline 40 and a water outlet pipeline 50, the booster pump 20 is connected to the upstream of the hot water pipeline 30, the downstream of the hot water pipeline 30 is communicated with the water inlet 111, the return water pipeline 40 is communicated with the second water outlet 113, and the water outlet pipeline 50 is communicated with the first water outlet 112. Therefore, when the water heater is applied to the water heater 1, the second opening 220 and the water return pipeline 40 can be closed or communicated according to the water flow, and the first water outlet 112 can all normally discharge water, so that in the pressurization mode, the water return pipeline 40 is sealed by the sleeve 200, and after the water outlet faucet 90 is turned off, the circulating booster pump 20 can be stopped working quickly without working for a period of time, no additional noise is caused, and the fuel gas is also saved.
In a preferred embodiment, as shown in fig. 1-3, the elastic force of the first spring 300 and the elastic force of the second spring 400 are equal. So that the sleeve can keep relatively stable and move under the push of water flow.
As a preferred embodiment, as shown in fig. 1 to 3, the three-way valve 10 further includes a cylindrical housing 100, the first spring 300, the sleeve 200 and the second spring 400 are sequentially disposed in the housing 100 along the axial direction of the housing 100, and both ends of the first spring 300 and both ends of the second spring 400 are connected to the housing 100 and the sleeve 200, respectively.
In a preferred embodiment, as shown in fig. 1-3, the outer sidewall of the sleeve 200 is attached to the inner sidewall of the housing 100. The outer side wall of the sleeve is attached to the inner side wall of the housing 100, and the housing 100 has a limiting function on the sleeve, so that the sleeve 200 can move in the axial direction without being deviated.
In practice, the axial length of the sleeve 200 is less than the axial length of the housing 100 to facilitate installation of the first spring 300 and the second spring 400 within the housing 100, and the sleeve 200 is also able to move axially within the housing 100. In addition, the sleeve 200 is a hollow member, and the inside of the sleeve is filled with water, so that the water can flow out through the first opening 210 and the second opening 220. The end face of the sleeve 200 opposite to the water inlet 111 can be provided with an annular disc, so that the sleeve 200 not only can normally feed water, but also can increase the contact area between the water inlet flow and the sleeve 200, and the water flow can push the sleeve 200 to move.
As a preferred embodiment, as shown in fig. 1 to 3, the water inlet 111 is disposed at one axial end of the housing 100, the first water outlet 112 and the second water outlet 113 are disposed on a side wall of the housing 100, and the first water outlet 112 and the second water outlet 113 are not overlapped with each other. So that the sleeve 200 can communicate with the first and second water outlets 112 and 113, respectively, and the second water outlet 113 can be turned on or off.
In practical implementation, the included angle between the axis of the first water outlet 112 and the axis of the second water outlet 113 can be set as required, and accordingly, the first opening 210 and the second opening 220 have opposite positions. As shown in fig. 1, in the figure, the first water outlet 112 and the second water outlet 113 are oppositely arranged and located at two opposite sides of the side wall of the housing 100, that is, an included angle between an axis of the first water outlet 112 and an axis of the second water outlet 113 is 180 °; and the first opening 210 and the second opening 220 are also oppositely disposed at both sides of the sleeve 200.
As a preferred embodiment, as shown in fig. 1 to 3, the housing 100 includes a housing body 110 and an end cap 120, the end cap 120 is disposed at one end of the housing body 110, and the outer wall of the other end of the housing body 110 is provided with threads for connecting with a water inlet device. Thus, the sleeve 200, the first spring 300, and the second spring 400 are facilitated to be mounted in the housing 100; the other end of the housing body 110 is threaded to facilitate connection to other devices, such as the hot water line 30 of the water heater 1.
As a preferred embodiment, as shown in fig. 1-3, both ends of the first spring 300 are connected to the end cap 120 and the sleeve, respectively; the inner wall of the case body 110 at the end provided with the screw thread is provided with a step 114, and both ends of the second spring 400 are respectively connected with the step 114 and the sleeve.
In particular implementations, the ends of the first spring 300 and the second spring 400 may be fixedly connected or abutted with the end cap 120 and the sleeve, respectively. For example, one end of the first spring 300 is fixedly connected to the end cap 120 and the other end abuts the sleeve 200, and both ends of the second spring 400 may abut the step 114 and the sleeve 200.
The invention also provides a water heater 1, the water heater 1 comprising a three-way valve 10 as described above.
In a preferred embodiment, as shown in fig. 4, the water heater 1 further includes a booster pump 20, a hot water pipe 30, a water return pipe 40 and a water outlet pipe 50, wherein the booster pump 20 is connected to the upstream of the hot water pipe 30, the downstream of the hot water pipe 30 is communicated with the water inlet 111, the water return pipe 40 is communicated with the second water outlet 113, and the water outlet pipe 50 is communicated with the first water outlet 112. In the pressurization mode, the water return pipeline 40 is sealed by the sleeve 200, and after the water outlet faucet 90 is turned off, the circulating booster pump 20 can stop working quickly without working for a period of time, so that extra noise is not brought, and fuel gas is saved.
Further, as shown in fig. 4, in practical implementation, the water heater 1 is further connected to a cold water pipeline 60, the cold water pipeline 60 is connected to a municipal water supply pipeline 80, and the cold water pipeline 60 is connected to a water inlet 111 of the water heater 1 so as to be heated by a heating device inside the water heater 1 and flow out hot water; the cold water line 60 may also be connected to the water outlet line 50 for mixing water, so that the temperature of the water in the water outlet line 50 is adjustable, and the water outlet line 50 is usually connected to a faucet 90. One end of the return pipe 40 is connected to the second outlet 113 of the three-way valve 10, and the other end thereof can be connected to the inlet 111 of the water heater 1, and a check valve 70 is provided in the return loop to prevent cold water from entering the return pipe 40.
In addition, the water heater 1 may be a water heater 1 of different forms, such as a gas water heater 1.
As a preferred embodiment, the water heater 1 comprises a circulation mode and a pressurization mode; in the circulation mode, the water flow at the water inlet 111 pushes the sleeve 200 to move, the first opening 210 is communicated with the first water outlet 112, and the second opening 220 is communicated with the second water outlet 113; in the pressurization mode, the water flow at the water inlet 111 pushes the sleeve 200 to move, the first opening 210 is communicated with the first water outlet 112, and the second opening 220 is closed with the second water outlet 113 in a staggered manner.
Specifically, as shown in fig. 1, the water heater 1 also includes a no-water mode in which the water heater 1 is not turned on, the spring force of the first spring 300 and the spring force of the second spring 400 are equal, and the sleeve 200 is in a balanced state.
As shown in fig. 2, when the water heater 1 is in the circulation mode, the water flow has a certain pressure, the sleeve 200 will be deflected to the right by a certain distance, the first spring 300 is compressed, the second spring 400 is stretched, and the water flow pressure is equal to the sum of the spring force of the first spring 300 and the spring force of the second spring 400; in this mode, the water flow may return from the return pipe to the water inlet 111.
As shown in fig. 3, the water heater 1 is in the boost mode, which is also typically the default state, and the boost function is on. When the water heater 1 is in the pressurization mode, the water flow pressure is rapidly increased, the sleeve 200 is shifted to the right by a large distance, the first spring 300 is compressed, the second spring 400 is extended, and the water flow pressure is equal to the sum of the spring force of the first spring 300 and the spring force of the second spring 400. In this state, the water use mode is normal because the aperture of the second opening 220 is large, and the passage can be maintained even if the sleeve 200 is shifted to the right by a large distance; however, the return line 40 is blocked by the sleeve 200 and cannot start the circulation function. When the water outlet tap 90 is closed, the flow rate in the first water outlet 112 is 0, the flow rate in the second water outlet 113 is also 0, and the booster pump 20 stops operating after the water heater 1 detects that the flow rate is 0 and continues for 1 second. The sleeve 200 within the three-way valve 10 is then returned to the normal water use mode.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (11)
1. A three-way valve having a water inlet, a first water outlet, and a second water outlet; characterized in that the three-way valve comprises a sleeve, a first spring and a second spring,
a first opening and a second opening are arranged on the side wall of the sleeve, the first opening is used for being communicated with the first water outlet, the second opening is used for being communicated with the second water outlet, and the axial length of the first opening on the side wall of the sleeve is larger than that of the second opening on the side wall of the sleeve, so that the first opening is always communicated with the first water outlet;
the first spring and the second spring are oppositely arranged at two ends of the sleeve, and the connecting end of the sleeve and the first spring or the second spring is communicated with the water inlet, so that water flow at the water inlet directly pushes the sleeve to move.
2. A three-way valve according to claim 1, characterized in that the first spring and the second spring are arranged at the axial ends of the sleeve, respectively.
3. A three-way valve according to claim 1, characterized in that the spring force of the first spring and the spring force of the second spring are equal.
4. The three-way valve according to claim 1, further comprising a cylindrical housing, wherein the first spring, the sleeve, and the second spring are provided in the housing in this order along an axial direction of the housing, and both ends of the first spring and both ends of the second spring are connected to the housing and the sleeve, respectively.
5. A three-way valve according to claim 4, characterized in that the outer side wall of the bushing abuts the inner side wall of the housing.
6. The three-way valve according to claim 4, wherein the water inlet is provided at one axial end of the housing, the first water outlet and the second water outlet are provided on a side wall of the housing, and the first water outlet and the second water outlet do not overlap with each other.
7. A three-way valve according to claim 6, characterized in that the housing comprises a housing body and an end cap, the end cap being provided at one end of the housing body, the outer wall of the other end of the housing body being provided with a thread for connection with a water inlet device.
8. The three-way valve according to claim 7, wherein both ends of the first spring are connected to the end cap and the sleeve, respectively; the inner wall of the shell body, which is provided with one end with threads, is provided with a step, and the two ends of the second spring are respectively connected with the step and the sleeve.
9. A water heater characterized in that it comprises a three-way valve according to any one of claims 1-8.
10. The water heater of claim 9, further comprising a booster pump, a hot water line, a return water line, and an outlet water line, wherein the booster pump is connected upstream of the hot water line, wherein a downstream of the hot water line is in communication with the inlet, wherein the return water line is in communication with the second outlet, and wherein the outlet water line is in communication with the first outlet.
11. The water heater as recited in claim 10 wherein the water heater includes a circulation mode and a boost mode;
in the circulation mode, the sleeve is pushed to move by water flow at the water inlet, the first opening is communicated with the first water outlet, and the second opening is communicated with the second water outlet;
under the pressurization mode, the water flow at the water inlet pushes the sleeve to move, the first opening is communicated with the first water outlet, and the second opening and the second water outlet are closed in a staggered mode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110014219.7A CN112833216B (en) | 2021-01-06 | 2021-01-06 | Three-way valve and water heater |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110014219.7A CN112833216B (en) | 2021-01-06 | 2021-01-06 | Three-way valve and water heater |
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| CN112833216A CN112833216A (en) | 2021-05-25 |
| CN112833216B true CN112833216B (en) | 2022-03-08 |
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| CN114698531B (en) * | 2022-05-13 | 2023-12-26 | 东恒雍禾建设股份有限公司 | Watering device for afforestation |
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