CN112128981B - Cold water recycling system of water heater - Google Patents
Cold water recycling system of water heater Download PDFInfo
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- CN112128981B CN112128981B CN201910551456.XA CN201910551456A CN112128981B CN 112128981 B CN112128981 B CN 112128981B CN 201910551456 A CN201910551456 A CN 201910551456A CN 112128981 B CN112128981 B CN 112128981B
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- cold water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 916
- 238000004064 recycling Methods 0.000 title claims abstract description 67
- 238000011084 recovery Methods 0.000 claims abstract description 30
- 238000005507 spraying Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 10
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000002737 fuel gas Substances 0.000 abstract description 3
- 230000003068 static effect Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 238000001223 reverse osmosis Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000000670 limiting effect Effects 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/12—Arrangements for connecting heaters to circulation pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses a cold water recycling system of a water heater. The cold water recycling system of the water heater comprises: water heater, water mixing valve, switching-over device and water storage device, water heater includes: a cold water recovery channel and a cold water recycling channel. According to the cold water recycling system of the water heater, when the water heater is started, residual cold water in the hot water pipe of the water heater can be stored in the water storage device through the cold water recycling channel, and water in the water storage device can flow through the cold water recycling channel to flow back into the cold water pipe of the water heater for recycling the cold water. Therefore, the cold water recycling system of the water heater can realize zero cold water when the water heater discharges water under the condition that a water pump, an H valve and a water return pipeline are not required to be arranged, and not only can the safety of other electric appliances sharing the cold water pipe waterway be protected, but also the high utilization rate of fuel gas can be ensured, and the cost of the cold water recycling system is lower.
Description
Technical Field
The invention relates to the technical field of water heaters, in particular to a cold water recycling system of a water heater.
Background
The zero cold water product of the water heater in the market at present is obtained by arranging a water pump and preheating water in a hot water pipe of the water heater by the water pump, thereby realizing the zero cold water. However, the water pump needs to include a pipe fitting or the like matched with the water pump, which results in higher cost of the water heater. And because the water pump is always working, unnecessary waterway parts are heated in the cyclic preheating process, and waste gas is not energy-saving.
In addition, 70% of users do not have a water return pipeline, so that the users use a cold water pipe to construct a loop through an H valve, hot water flows through the cold water pipe in the circulation process, so that when a cold water faucet is started after preheating, hot water flows out, a user can be scalded, and the users are simultaneously connected with other aquatic products such as water purifiers, if the water temperature of the cold water pipe exceeds 38 ℃, RO (reverse osmosis) membranes of the water purifiers can be damaged directly, and the H valve or similar parts are arranged in the water purifiers to construct the loop for use.
Disclosure of Invention
The present invention aims to solve, at least to some extent, one of the above technical problems in the prior art. Therefore, the invention provides a cold water recycling system of a water heater, which realizes zero cold water when the water heater is used under the condition that a water pump, an H valve and a water return pipeline are not needed.
The cold water recycling system of the water heater according to the embodiment of the invention comprises: the water heater, mix water valve, switching-over device and water storage device, the water heater includes: the cold water recycling channel and the cold water recycling channel, the mixing valve includes two mixing valve water inlets and a mixing valve delivery port, cold water pipe and the hot-water line of water heater respectively with two water inlets of mixing valve link to each other, the switching-over device includes: the water storage device is used for storing residual cold water in a hot water pipe of the water heater and comprises a water storage inlet and a water storage outlet, the water storage inlet is connected with the first reversing water outlet, and the water storage outlet is connected with a cold water pipe of the water heater;
in the cold water recovery channel, cold water in a hot water pipe of the water heater flows into the water mixing valve from a corresponding water mixing valve water inlet, flows into the reversing water inlet from the water mixing valve water outlet, and flows into the water storage device from the first reversing water outlet through the water storage water inlet;
in the cold water recycling channel, cold water stored in the water storage device is connected with the cold water pipe of the hot water pipe from the water storage water outlet and flows back to the cold water pipe in the water heater.
According to the cold water recycling system of the water heater, which is disclosed by the embodiment of the invention, the cold water recycling system of the water heater comprises the cold water recycling channel and the cold water recycling channel, when the water heater is started, residual cold water in the hot water pipe of the water heater can be stored in the water storage device through the cold water recycling channel, and water in the water storage device can flow through the cold water recycling channel to flow back into the cold water pipe of the water heater, so that the cold water is recycled. Therefore, the cold water recycling system of the water heater can realize zero cold water when the water heater discharges water under the condition that a water pump, an H valve and a water return pipeline are not required to be arranged, the water heater can not generate waste water, the water utilization rate is high, the water in the cold water pipe can not be heated by the water heater, the safety of other electric appliances sharing the water path of the cold water pipe can be protected, such as the safety of RO membranes of the water purifier, the high utilization rate of fuel gas can be ensured, and in addition, no complex component is arranged in the cold water recycling system of the water heater, and the low cost of the cold water recycling system can be ensured.
According to some embodiments of the invention, the water heater cold water recycling system further comprises a first one-way valve, wherein the first one-way valve is positioned between the first reversing water outlet and the water storage water inlet, and cold water flows into the water storage device from the water storage water inlet through the first one-way valve from the first reversing water outlet.
Further, the cold water recycling system of the water heater further comprises: the second one-way valve is positioned between the cold water pipe of the water heater and the water storage water outlet, and cold water in the water storage device flows into the cold water pipe of the water heater from the water storage water outlet through the second one-way valve.
Further, the cold water recycling system of the water heater further comprises: and the water spraying device is connected with the second reversing water outlet.
According to some embodiments of the invention, the reversing device is a mechanical pressure reversing valve.
According to some embodiments of the invention, when the cold water recovery channel is open, the reversing water inlet communicates with the first reversing water outlet, and the water storage water outlet is disconnected from the cold water pipe; when the cold water recycling channel is opened, the reversing water inlet is disconnected with the first reversing water outlet, and the water storage water outlet is communicated with the cold water pipe.
Specifically, when the pressure in the water storage device is smaller than the pressure of the cold water pipe of the water heater, the cold water recovery channel is opened; when the pressure in the water storage device is larger than the pressure of the cold water pipe of the water heater, the cold water recycling channel is opened.
According to some embodiments of the invention, the water storage device is a sealed structure.
According to some embodiments of the invention, the water storage device comprises: the water storage device comprises a water storage shell, a piston and a compression spring, wherein a cavity is formed in the water storage shell, the cavity is provided with a water inlet and a water outlet end connected with the water storage water inlet and a bottom end far away from the water storage water inlet and the water outlet, the piston is arranged in the cavity, the peripheral wall of the piston is suitable for being attached to the inner cavity wall of the cavity, a water storage cavity is formed between the piston and the water inlet and outlet end, the water inlet and the water outlet are communicated with the water storage cavity, and the compression spring is arranged between the piston and the top end.
According to some embodiments of the invention, the water heater is a gas water heater or an electric water heater or a wall-mounted boiler water heater or an air energy water heater.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic diagram of a water heater cold water recovery system;
FIG. 2 is a schematic view of a cold water recovery channel;
FIG. 3 is a schematic view of a cold water reuse tunnel;
FIG. 4 is a perspective view of a reversing valve;
FIG. 5 is an exploded view of the reversing valve;
fig. 6 is a sectional view of the reversing valve in an initial state;
fig. 7 is a sectional view of the reversing valve during a switching from an initial state to a reversing state;
fig. 8 is a cross-sectional view of the reversing valve in a reversing state.
Reference numerals:
the water heater cold water recycling system 10, the water heater 1, the hot water pipe 11, the cold water pipe 12, the cold water recycling channel 2, the cold water recycling channel 3, the mixing valve 4, the hot water inlet 41, the cold water inlet 43, the mixing valve water outlet 42, the reversing device 300, the reversing water inlet 301, the first reversing water outlet 302, the second reversing water outlet 303, the mounting shaft 304, the mounting shaft 305, the cap nut 306, the action port 307, the valve body 310, the fixing bracket 311, the mounting hole 312, the first valve core 320, the second valve core 330, the mounting hole 331, the water inlet joint 340, the water outlet joint 350, the connecting rod 360, the positioning hole 361, the through hole 362, the adapting hole 363, the accommodating cavity 364, the first elastic member 372, the water storage device 6, the water storage water inlet 61, the water storage water outlet 62, the first one-way valve 7, the second one-way valve 8 and the water spraying device 9.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "top," "bottom," "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 simplicity of description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may communicate with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
A water heater cold water recovery system 10 in accordance with an embodiment of the present invention is described in detail below in conjunction with fig. 1-8.
Referring to fig. 1-3, a water heater cold water recovery and utilization system 10 according to an embodiment of the present invention may include: the water heater 1, the water mixing valve 4, the reversing device 300, and the water storage device 6 may heat cold water flowing in the water heater 1, and in particular, the water heater 1 may include: the cold water recycling channel 2 and the cold water recycling channel 3, wherein the cold water recycling channel 2 can collect cold water, and the cold water recycling channel 3 can recycle the collected cold water, so that the high water utilization rate is ensured.
Further, as shown in fig. 1, the water mixing valve 4 includes two water mixing valve inlets and one water mixing valve outlet 42, wherein the two water mixing valve inlets of the water mixing valve 4 are a hot water inlet 41 and a cold water inlet 43, specifically, the hot water inlet 41 is connected with the hot water pipe 11 of the water heater 1, the cold water inlet 43 is connected with the cold water pipe 12 of the water heater 1, in a specific embodiment, the cold water pipe 12 of the water heater 1 and the water in the hot water pipe 11 can both flow into the water mixing valve 4, so as to mix the hot water and the cold water, and further realize adjusting the water temperature flowing out of the water mixing valve outlet 42.
The cold water pipe 12 of the water heater 1 is a cold water pipe, the hot water pipe 11 of the water heater 1 is a hot water pipe, that is, the water in the cold water pipe 12 of the water heater 1 is cold water flowing into the water heater 1, and the water in the hot water pipe 11 of the water heater 1 is hot water heated by the water heater 1.
Further, as shown in fig. 1, the reversing device 300 may include: the reversing water inlet 301, the first reversing water outlet 302 and the second reversing water outlet 303, the reversing water inlet 301 is connected with the water mixing valve water outlet 42, one of the first reversing water outlet 302 and the second reversing water outlet 303 is communicated with the reversing water inlet 301, the reversing water inlet 301 in the reversing device 300 can be communicated with one of the first reversing water outlet 302 and the second reversing water outlet 303, that is, the reversing water inlet 301 can be communicated with the first reversing water outlet 302, and at the moment, water flowing out of the water mixing valve water outlet 42 flows into the reversing water inlet 301 and then flows out of the first reversing water outlet 302; the reversing water inlet 301 may be further communicated with the second reversing water outlet 303, and at this time, the water flowing out of the water mixing valve water outlet 42 flows into the reversing water inlet 301 and then flows out of the second reversing water outlet 303. By providing the reversing device 300, it is possible to realize the cold water recovery system 10 of the water heater with the cold water recovery channel 2 and the cold water reuse channel 3.
It should be noted that the terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying a number of technical features being 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 invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
Further, as shown in fig. 1, the water storage device 6 can store the residual cold water in the hot water pipe 11 of the water heater 1, that is, when the water heater 1 is used, the residual cold water in the hot water pipe 11 of the water heater 1 flows into the water storage device 6 and stores the cold water, so that no cold water is present when the water heater 1 is used, and zero cold water is realized when the water heater 1 is used.
Specifically, as shown in fig. 1, the water storage device 6 includes a water storage inlet 61 and a water storage outlet 62, the water storage inlet 61 is connected to the first reversing outlet 302, so that cold water in the hot water pipe 11 of the water heater 1 can enter the water storage device 6 from the water storage inlet 61, and the water storage outlet 62 is connected to the cold water pipe 12 of the water heater 1, so that cold water in the water storage device 6 can flow back to the cold water pipe 12 of the water heater 1.
As shown in fig. 2, in the cold water recovery passage 2, cold water in the hot water pipe 11 of the water heater 1 flows into the mixing valve 4 from the corresponding mixing valve water inlet, flows into the reversing water inlet 301 from the mixing valve water outlet 42, and flows into the water storage device 6 from the first reversing water outlet 302 through the water storage water inlet 61, thereby avoiding the cold water in the hot water pipe 11 from directly flowing out, and thus ensuring that the water flowing out of the water heater 1 is free of cold water.
As shown in fig. 3, in the cold water reuse passage 3, cold water stored in the water storage device 6 is connected to the cold water pipe 12 of the hot water pipe from the water storage outlet 62 and flows back to the cold water pipe 12 of the water heater 1, thereby ensuring high water utilization rate and no waste water.
The cold water recycling system 10 of the water heater according to the embodiment of the invention comprises the cold water recycling channel 2 and the cold water recycling channel 3, when the water heater 1 is started, residual cold water in the hot water pipe 11 of the water heater 1 can be stored in the water storage device 6 through the cold water recycling channel 2, and water in the water storage device 6 can flow through the cold water recycling channel 3 to flow back to the cold water pipe 12 of the water heater 1 for recycling the cold water. Therefore, the water heater cold water recycling system 10 can realize zero cold water when the water heater 1 outputs water without setting a water pump, an 'H' valve and a water return pipeline, the water heater 1 can not generate waste water, the water utilization rate is high, the water heater 1 can not heat water in the cold water pipe 12, the safety of other electric appliances sharing the water path of the cold water pipe 12, such as the safety of RO membranes of the water purifier, can also ensure the high utilization rate of fuel gas, and the water heater cold water recycling system 10 has no complex components, so that the cost of the cold water recycling system can be ensured to be lower.
Further, as shown in fig. 1-3, the water heater cold water recycling system 10 may further include a first check valve 7, wherein the first check valve 7 is located between the first reversing water outlet 302 and the water storage water inlet 61, and cold water flows from the water storage water inlet 61 into the water storage device 6 through the first check valve 7 from the first reversing water outlet 302, i.e. cold water can only flow from the water storage water inlet 61 into the water storage device 6 through the first check valve 7 from the first reversing water outlet 302, preventing cold water in the water storage device 6 from flowing back to the reversing device 300 from the water storage water inlet 61.
Further, as shown in fig. 1-3, the water heater cold water recycling system 10 may further include: the second one-way valve 8, the second one-way valve 8 is located between the cold water pipe 12 and the water storage outlet 62 of the water heater 1, and cold water located in the water storage device 6 flows into the cold water pipe 12 of the water heater 1 from the water storage outlet 62 through the second one-way valve 8, namely, cold water located in the water storage device 6 can only flow into the cold water pipe 12 of the water heater 1 from the water storage outlet 62 through the second one-way valve 8, so that the cold water pipe 12 of the hot water pipe is prevented from flowing into the water storage device 6 from the water storage outlet 62.
Further, as shown in fig. 1-3, the water heater cold water recycling system 10 may further include: the water spraying device 9, the water spraying device 9 is connected with the second reversing water outlet 303, when the cold water recycling system 10 of the water heater is positioned in the cold water recycling channel 3, the hot water in the hot water pipe 11 of the water heater 1 flows through the water mixing valve 4 and the second reversing water outlet 303 of the reversing device 300, and then is sprayed out of the water spraying device 9, so that the water is used by a user.
Further, the reversing device 300 may be a mechanical pressure reversing valve 300. The mechanical pressure reversing valve 300 is described below with reference to the drawings.
As shown in fig. 1, 4-8, the reversing valve 300 is switchable between an initial state and a reversing state and includes: a valve body 310, a first spool 320, and a second spool 330.
Specifically, the valve body 310 has a reversing water inlet 301, a first reversing water outlet 302, a second reversing water outlet 303, a first actuation chamber and a second actuation chamber. The reversing water inlet 301 is adapted to communicate with the mixing valve water outlet 42, the first reversing water outlet 302 is adapted to selectively communicate with the water storage water inlet 61 of the water storage means 6, and the second reversing water outlet 303 is adapted to communicate with the water spraying means 9.
The first spool 320 is movably disposed in the first actuating chamber between a first position shown in fig. 6 and a second position shown in fig. 8, the second spool 330 is movably disposed in the second actuating chamber between an initial position shown in fig. 6 and a reversing position shown in fig. 8, and the second spool 330 is interlocked with the first spool 320.
In the initial state, the first valve core 320 is located at the first position and the second valve core 330 is located at the initial position, and the second valve core 330 is only communicated with the reversing water inlet 301 and the first reversing water outlet 302 to feed water to the water storage device 6; when the first reversing water outlet 302 is disconnected from the water storage device 6, the first valve core 320 moves to the second position and drives the second valve core 330 to move to the reversing position, the second valve core 330 only communicates the reversing water inlet 301 with the second reversing water outlet 303, and the reversing valve 300 is switched to the reversing state.
Thus, when no water passes, the reversing valve 300 is in an initial state; when water enters the valve body 310 from the reversing water inlet 301, the water flow firstly enters the water storage device 6 from the first reversing water outlet 302; when the first reversing water outlet 302 is disconnected from the water storage device 6, the first valve core 320 is linked with the second valve core 330 to change the water path direction, so that water from the reversing water inlet 301 flows out from the second reversing water outlet 303, and cold water which comes out first is collected by the water storage device 6, and hot water which comes out later can directly flow out from the water spraying device 9 for use by a user.
The reversing valve 300 changes the direction of the waterway by utilizing the linkage of the first valve core 320 and the second valve core 330, so that water entering from the reversing water inlet 301 flows out from the first reversing water outlet 302 first, and flows out from the second reversing water outlet 303 when the first reversing water outlet 302 is disconnected from the water storage device 6, thereby being beneficial to realizing the zero cold water function of the water heater, and having simple structure and high reliability.
According to some embodiments of the invention, as shown in fig. 4-8, the reversing valve 300 further includes: the water inlet connector 340, one end of the water inlet connector 340 is connected with the reversing water inlet 301 and the other end is suitable for being connected with the water outlet 42 of the mixing valve. Advantageously, in order to ensure tightness and reliability, a sealing element 11, for example an O-ring, is provided between the water inlet fitting 340 and the valve body 310.
According to some embodiments of the present invention, as shown in fig. 4 to 8, the reversing valve 300 for a water heater further includes: the water outlet connector 350, one end of the water outlet connector 350 is connected with the second reversing water outlet 303, the other end is suitable for being connected with the water inlet end of the water spraying device 9, the head of the second valve core 330 is used for plugging the one end of the water outlet connector 350 when in an initial position, and the one end of the water outlet connector 350 is opened when in a reversing position.
Advantageously, in order to ensure tightness and reliability, a sealing element 11, for example an O-ring, is provided between the outlet fitting 350 and the valve body 310, a sealing element 11, for example an O-ring, is provided between the head of the first valve cartridge 320 and the valve body 310, a sealing element 11, for example a profiled sealing ring, is provided between the head of the second valve cartridge 330 and the outlet fitting 350, and a sealing element 11, for example an O-ring, is provided between the body of the second valve cartridge 330 and the valve body 310.
According to some embodiments of the invention, as shown in fig. 4-8, the reversing valve 300 further includes: a link 360, the link 360 being rotatably provided on the valve body 310, and the link 360 being connected to the second spool 330. For example, the valve body 310 is provided with a fixing bracket 311, the connecting rod 360 is provided with a positioning hole 361, the fixing bracket 311 is provided with a mounting hole 312, the mounting shaft 304 passes through the mounting hole 312 and the positioning hole 361, and the mounting shaft 304 is matched with a nut to mount the connecting rod 360 on the fixing bracket 311; the second spool 330 has a body provided with an assembly hole 331 and the link 360 is provided with a through hole 362 and an assembly hole 363, the assembly shaft 305 passes through the through hole 362 and the assembly hole 331, and the assembly shaft 305 is engaged with a nut to fix the tail end of the second spool 330 in the assembly hole 363.
Wherein, in the initial state, the first valve core 320 is propped against the connecting rod 360; when the first reversing water outlet 302 is disconnected from the water storage device 6, the first valve core 320 pushes the connecting rod 360 to rotate, and the connecting rod 360 drives the second valve core 330 to move to the reversing position. Thus, the first and second spools 320 and 330 are interlocked with a simple structure.
Further, as shown in fig. 8, in the reversing state, the first valve cartridge 320 may be separated from the link 360 to move to the first position, thereby achieving the reset of the first valve cartridge 320. For example, a cap nut 306 may be disposed on the valve body 310, a first actuating cavity is defined between the cap nut 306 and the valve body 310, an actuating port 307 is disposed on the cap nut 306, and a tail end of the first valve element 320 extends from the actuating port 307 to abut against the connecting rod 360.
Alternatively, as shown in fig. 5-8, the connecting rod 360 has a receiving cavity 364, and a sealing pad 12, such as a rubber pad, is disposed in the receiving cavity 364, and the tail end of the first valve element 320 abuts against the sealing pad 12 when the reversing valve 300 is in the initial state, so as to facilitate buffering and vibration damping.
Advantageously, as shown in fig. 6 to 8, the first and second spools 320 and 330 are located at the same side of the rotation center of the link 360, so that the structure is more compact and the reversing reliability is more easily ensured.
According to some embodiments of the invention, the first valve spool 320 moves from the first position to the second position under the hydrostatic pressure of water. Thus, when the first diverting outlet 302 is disconnected from the water storage device 6, the pressure of the water in the valve body 310 is changed from dynamic pressure to static pressure to rapidly increase, the increased water pressure pushes the first valve element 320 to move, and then the first valve element 320 links the second valve element 330 to switch the diverting valve 300 to the diverting state. Therefore, the reversing valve 300 changes the direction of the waterway by utilizing the pressure change of the water, and the reversing valve 300 does not need external electricity or gas, so that the reversing valve is simpler in structure and higher in reliability, and is particularly suitable for household tap water with the water pressure in the range of 0.1-1 MPa.
According to some embodiments of the present invention, as shown in fig. 6 to 8, a first elastic member 371 is provided on the first valve element 320, and the first elastic member 371 has a force to normally drive the first valve element 320 to the first position; the second spool 330 is provided with a second elastic member 372, and the second elastic member 372 has a force to normally urge the second spool 330 toward the initial position. For example, the first elastic member 371 and the second elastic member 372 are each springs. It will be appreciated that the diameter of the head of the first spool 320 is greater than the diameter of the remainder of the first spool 320 and the diameter of the head of the second spool 330 is greater than the diameter of the remainder of the second spool 330.
Thus, when the reversing valve 300 is in the initial state, the first valve core 320 is pressed against the inner side of the valve body 310 under the action of the first elastic member 371, and the second valve core 330 is pressed against the one end of the water outlet connector 350 under the action of the second elastic member 372 to block the second reversing water outlet 303; when water flows into the water inlet joint 340, both the pressure of the water and the force of the second elastic member 372 act on the head of the second valve spool 330, so that the head of the second valve spool 330 blocks the one end of the water outlet joint 350, and at this time, the water flows out of the first reversing water outlet 302 and flows into the water storage device 6.
When the water storage device 6 is disconnected from the first reversing water outlet 302, the pressure inside the valve body 310 increases as the dynamic pressure changes to the static pressure, and when [ (P1 x S1-F1) x1.4 ] > (P2 x S2+ F2), the first valve core 320 pushes the connecting rod 360, the connecting rod 360 drives the second valve core 330 to move, and the reversing valve 300 is switched to the reversing state. Wherein, P1 is the static pressure received by the head of the first valve element 320, S1 is the force receiving area of the head of the first valve element 320, F1 is the force of the first elastic element 371, F1 is the friction force received by the first valve element 320, P2 is the static pressure received by the head of the second valve element 330, S2 is the force receiving area of the head of the second valve element 330, F2 is the force of the second elastic element 372, F2 is the friction force received by the second valve element 330, and the value 1.4 is the pressure ratio generated by the lever principle of the connecting rod 360.
Because the reversing water inlet 301 is communicated with the second reversing water outlet 303 when the head of the second valve core 330 opens the water outlet connector 350, at this time, the water pressure is changed from static pressure to dynamic pressure, the pressure drops, and the thrust force exerted by the first valve core 320 is reduced again and is pressed back to the first position by the first elastic member 371; after the water outlet connector 350 is opened by the second valve element 330, the force bearing area of the left side of the head of the second valve element 330 is larger than the force bearing area of the right side, so that the second valve element 330 can continue to move rightward until the special-shaped sealing ring seals the waterway between the reversing water inlet 301 and the first reversing water outlet 302 under the action of water pressure, and the reversing action is completed.
After closing the water, the second valve element 330 returns to the initial position under the elastic force of the second elastic element 372, and waits for the next boiled water use.
According to some embodiments of the present invention, as shown in fig. 6 to 8, the central axis of the first valve core 320 coincides with the central axis of the first actuating chamber, and the central axis of the second valve core 330 coincides with the central axis of the second actuating chamber, so that the structure is simple and the state switching of the reversing valve 300 is smooth.
According to some embodiments of the present invention, as shown in fig. 6 to 8, the central axis of the first spool 320 is parallel to the central axis of the second spool 330, and the rotation central axis of the connecting rod 360 is perpendicular to the central axis of the second spool 330, so that the structure is simpler and more compact, and the linkage between the first spool 320, the second spool 330 and the connecting rod 360 is smoother and more reliable.
In a specific embodiment, the reversing device 300 can adjust different switching pressure values to adapt to users with different water pressures, so as to ensure that the cold water recycling system 10 of the water heater has better universality.
Further, as shown in fig. 2, when the cold water recovery channel 2 is opened, the reversing water inlet 301 is communicated with the first reversing water outlet 302, the water storage water outlet 62 is disconnected from the cold water pipe 12, and the water flowing out of the hot water pipe 11 of the water heater 1 flows out of the first reversing water outlet 302 after passing through the water mixing valve 4 and the reversing water inlet 301 of the reversing device 300, and flows into the water storage device 6 from the water storage water inlet 61 after passing through the first one-way valve 7, so that the cold water remained in the hot water pipe 11 of the water heater 1 can be stored in the water storage device 6.
Further, as shown in fig. 3, when the cold water recycling channel 3 is opened, the reversing water inlet 301 is disconnected from the first reversing water outlet 302, the water storage water outlet 62 is communicated with the cold water pipe 12, and cold water stored in the water storage device 6 flows into the cold water pipe 12 of the water heater 1 after flowing through the second one-way valve 8 from the water storage water outlet 62, thereby completing recycling of the cold water in the water storage device 6.
It should be noted that the cold water recovery channel 2 is opened not because the cold water recovery channel 2 is opened and the first reversing water outlet 302 is opened, but because the cold water recovery channel 2 is opened because the reversing water inlet 301 is opened and the second reversing water outlet 303 is opened, and because the reversing water inlet 301 is opened and the cold water reuse channel 3 is opened, respectively, when the cold water reuse channel 3 is opened. That is, the opening or closing of the cold water recovery passage 2 and the cold water reuse passage 3 is determined by whether the reversing water inlet 301 of the reversing device 300 communicates with the first reversing water outlet 302 or the second reversing water outlet 303, thereby achieving recovery and reuse of cold water.
Specifically, when the pressure in the water storage device 6 is less than the pressure of the cold water pipe 12 of the water heater 1, the cold water recovery passage 2 is opened; when the pressure in the water storage device 6 is greater than the pressure in the cold water pipe 12 of the water heater 1, the cold water recycling channel 3 is opened, that is, the cold water recycling channel 2 and the opening and closing of the cold water recycling channel 3 are determined by the ratio of the pressure in the water storage device 6 to the pressure in the cold water pipe 12 of the water heater 1, wherein when the ratio of the pressure in the water storage device 6 to the pressure in the cold water pipe 12 of the water heater 1 is less than 1 (that is, the pressure in the water storage device 6 is less than the pressure in the cold water pipe 12 of the water heater 1), the cold water recycling channel 2 is opened, at this time, the cold water remained in the hot water pipe 11 of the water heater 1 can flow into the water storage device 6, so that the cold water remained in the hot water pipe 11 of the water heater 1 can be stored in the water storage device 6; when the ratio of the pressure in the water storage device 6 to the pressure in the cold water pipe 12 of the water heater 1 is greater than 1 (i.e., the pressure in the water storage device 6 is greater than the pressure in the cold water pipe 12 of the water heater 1), the cold water reuse passage 3 is opened, and at this time, the cold water stored in the water storage device 6 flows back into the cold water pipe 12 of the water heater 1, thereby completing the reuse of the cold water in the water storage device 6.
Further, the water storage device 6 may be a sealed structure, so as to ensure that the pressure in the water storage device 6 can be changed. In a specific embodiment, when the water heater 1 is operated for a period of time, the hot water in the hot water pipe 11 of the water heater 1 is cooled to become cold water, when the water heater 1 is reused, no cold water or a small amount of cold water flows into the water storage device 6 after the water heater 1 is reused, therefore, the pressure of the cold water pipe 12 of the water heater 1 is always larger than the pressure in the water storage device 6, water in the water storage device 6 cannot enter the cold water pipe 12 of the water heater 1 through the second one-way valve 8, at the moment, the reversing water inlet 301 in the reversing device 300 is communicated with the first reversing water outlet 302, the cold water recovery channel 2 is opened, when the water heater 1 is opened, the hot water from the water heater 1 pushes the cold water remained in the hot water pipe 11 to flow through the water mixing valve 4, the first reversing water outlet 302 in the reversing device 300 and the first one-way valve 7, and the cold water flows into the water storage device 6, the air in the water storage device 6 begins to be compressed along with the inflow of the cold water, the air pressure in the water storage device 6 becomes larger, and when the pressure in the water storage device 6 approaches the pressure of the cold water pipe 12 of the water pipe 1, the cold water pipe 12 enters the water storage device 6 to the cold water pipe 12 at the specific position of the water storage device 1, and the cold water storage device 1 is in a state of the water storage device 1 is at the water storage device 1, and the cold water storage device is at the water storage device is at a lower level, and the water level is at the water level 1 is shown in the water level condition; when the pressure in the water storage device 6 is greater than the pressure of the cold water pipe 12 of the water heater 1, at this time, the reversing water inlet 301 in the reversing device 300 is communicated with the second reversing water outlet 303, the cold water recycling channel 3 is opened, hot water flowing out of the hot water pipe 11 of the water heater 1 passes through the water mixing valve 4 and the second reversing water outlet 303 in the reversing device 300 and is sprayed out of the water spraying device 9 so as to be used by a user, and along with the flow of water in the cold water pipe 12 of the water heater 1, the pressure in the cold water pipe 12 of the water heater 1 is necessarily attenuated to a certain extent, at this time, the air pressure in the water storage device 6 is greater than the pressure in the cold water pipe 12 of the water heater 1, cold water in the water storage device 6 is discharged from the water storage water outlet 62, enters the cold water pipe 12 of the water heater 1 after passing through the second one-way valve 8 and is reused, when the pressure in the water storage device 6 is close to the pressure of the cold water pipe 12 of the water heater 1, the water flow discharged from the water storage device 6 is reduced, at this time, the pressure in the cold water pipe 12 of the water pipe 1 and the water storage device 1 in a static state is stopped at this time, and the water storage device 1 is stopped at the position of the water storage device 1, as shown in the water storage device 1, and the water storage device is stopped at the water storage device is stopped, and the water storage device is stopped at the position when the water storage device is stopped.
Alternatively, the water spraying device 9 is a shower head.
In some embodiments, the water storage device 6 may include: the water storage device comprises a water storage shell, a piston and a compression spring, wherein a cavity is formed in the water storage shell, the cavity is provided with a water inlet end and a water outlet end which are connected with the water storage inlet 61 and the water storage outlet 62, and a bottom end which is far away from the water storage inlet 61 and the water storage outlet 62, the piston is arranged in the cavity, the outer peripheral wall of the piston is suitable for being attached to the inner cavity wall of the cavity so as to form a water storage cavity between the piston and the water inlet end, the water storage inlet 61 and the water storage outlet 62 are communicated with the water storage cavity, the compression spring is arranged between the piston and the top end, when water flows into the cavity of the water storage shell in the hot water pipe 11 of the water heater 1, cold water is located in the water storage cavity, therefore, the piston moves upwards along with the increase of cold water in the water storage device 6, the compression spring located between the piston and the top end is compressed, and accordingly the compression spring can generate downward reactive force on the piston, and the pressure in the water storage device 6 is changed. That is, the water storage device 6 can also be matched with the spring through the piston, and the pressure change in the water storage device 6 can be realized by utilizing the reaction force when the spring is compressed, so that the pressure in the water storage device 6 can be ensured to generate a pressure difference with the pressure in the cold water pipe 12 of the water heater 1, and the normal operation of the cold water recycling system 10 of the water heater is ensured.
According to some embodiments of the invention, the water heater 1 is a gas water heater or an electric water heater or a wall-mounted boiler water heater or an air energy water heater.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (9)
1. A water heater cold water recovery system, comprising:
a water heater, the water heater comprising: a cold water recovery channel and a cold water recycling channel;
the water mixing valve comprises two water inlets of the water mixing valve and one water outlet of the water mixing valve, and a cold water pipe and a hot water pipe of the water heater are respectively connected with the two water inlets of the water mixing valve;
a reversing device, the reversing device comprising: the reversing water inlet is connected with the water outlet of the water mixing valve, and one of the first reversing water outlet and the second reversing water outlet is communicated with the reversing water inlet;
the water storage device is used for storing residual cold water in a hot water pipe of the water heater and comprises a water storage inlet and a water storage outlet, the water storage inlet is connected with the first reversing water outlet, and the water storage outlet is connected with a cold water pipe of the water heater;
in the cold water recovery channel, cold water in a hot water pipe of the water heater flows into the water mixing valve from a corresponding water mixing valve water inlet, flows into the reversing water inlet from the water mixing valve water outlet, and flows into the water storage device from the first reversing water outlet through the water storage water inlet;
in the cold water recycling channel, cold water stored in the water storage device is connected with a cold water pipe of the hot water pipe from the water storage water outlet and flows back to the cold water pipe in the water heater; wherein,,
when the pressure in the water storage device is smaller than the pressure of a cold water pipe of the water heater, the reversing water inlet is communicated with the first reversing water outlet, and a cold water recovery channel is opened; when the pressure in the water storage device is larger than the pressure of the cold water pipe of the water heater, the reversing water inlet is communicated with the second reversing water outlet, and the cold water recycling channel is opened.
2. The water heater cold water recycling system according to claim 1, further comprising a first one-way valve located between the first reversing water outlet and the water storage water inlet, and cold water flowing from the first reversing water outlet through the first one-way valve from the water storage water inlet into the water storage device.
3. The water heater cold water recovery system of claim 2, further comprising: the second one-way valve is positioned between the cold water pipe of the water heater and the water storage water outlet, and cold water in the water storage device flows into the cold water pipe of the water heater from the water storage water outlet through the second one-way valve.
4. The water heater cold water recovery system of claim 3, further comprising: and the water spraying device is connected with the second reversing water outlet.
5. The chilled water recovery system of claim 1, wherein the reversing device is a mechanical pressure reversing valve.
6. The water heater cold water recovery system of claim 1, wherein when the cold water recovery channel is open, the reversing water inlet communicates with the first reversing water outlet, and the water storage water outlet is disconnected from the cold water pipe; when the cold water recycling channel is opened, the reversing water inlet is disconnected with the first reversing water outlet, and the water storage water outlet is communicated with the cold water pipe.
7. The water heater cold water recovery and utilization system according to claim 1, wherein the water storage device is a sealing structure.
8. The water heater cold water recovery system of claim 1, wherein the water storage means comprises:
the water storage shell is internally provided with a cavity, and the cavity is provided with a water inlet end, a water outlet end and a bottom end, wherein the water inlet end and the water outlet end are connected with the water storage water inlet, and the bottom end is far away from the water storage water inlet and the water storage water outlet;
the piston is arranged in the cavity, the peripheral wall of the piston is suitable for being attached to the inner cavity wall of the cavity so as to form a water storage cavity between the piston and the water inlet and outlet end, and the water storage water inlet and the water storage water outlet are communicated with the water storage cavity;
and a compression spring disposed between the piston and the top end.
9. The water heater cold water recycling system according to claim 1, wherein the water heater is a gas water heater or an electric water heater or a wall-mounted boiler water heater or an air energy water heater.
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| CN201910551456.XA CN112128981B (en) | 2019-06-24 | 2019-06-24 | Cold water recycling system of water heater |
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| CN113720009A (en) * | 2021-11-01 | 2021-11-30 | 杭州高卡机械有限公司 | Wall-mounted furnace and control method thereof |
| CN114383319B (en) * | 2022-01-19 | 2023-03-21 | 浙江管一管管业有限公司 | Energy storage recovery type heat preservation device and hot water liquid outlet system |
| CN115013974A (en) * | 2022-06-24 | 2022-09-06 | 珠海格力电器股份有限公司 | Zero-cold-water supply system and control method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201218562Y (en) * | 2008-05-06 | 2009-04-08 | 方雷 | Water saving device of hot water supply pipeline |
| CN201688572U (en) * | 2010-05-27 | 2010-12-29 | 北京清华阳光能源开发有限责任公司 | Cold-water recycling and reusing hot-water system |
| CN103423875A (en) * | 2012-05-15 | 2013-12-04 | 厦门锐思达机电科技有限公司 | Water saving device of water heater |
| CN104776608A (en) * | 2015-04-29 | 2015-07-15 | 重庆大学 | Cold water recycling water heater |
| CN207609811U (en) * | 2017-11-21 | 2018-07-13 | 青岛经济技术开发区海尔热水器有限公司 | A kind of mixed water-bound of electric heater integrated form |
| CN109812598A (en) * | 2019-03-11 | 2019-05-28 | 李晨阳 | Temperature Control Type automatic energy saving water mixing valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949325B (en) * | 2015-07-20 | 2017-10-13 | 潘兆铿 | With the small-sized storage water heater thermostatic electric water heater of water terminal |
-
2019
- 2019-06-24 CN CN201910551456.XA patent/CN112128981B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201218562Y (en) * | 2008-05-06 | 2009-04-08 | 方雷 | Water saving device of hot water supply pipeline |
| CN201688572U (en) * | 2010-05-27 | 2010-12-29 | 北京清华阳光能源开发有限责任公司 | Cold-water recycling and reusing hot-water system |
| CN103423875A (en) * | 2012-05-15 | 2013-12-04 | 厦门锐思达机电科技有限公司 | Water saving device of water heater |
| CN104776608A (en) * | 2015-04-29 | 2015-07-15 | 重庆大学 | Cold water recycling water heater |
| CN207609811U (en) * | 2017-11-21 | 2018-07-13 | 青岛经济技术开发区海尔热水器有限公司 | A kind of mixed water-bound of electric heater integrated form |
| CN109812598A (en) * | 2019-03-11 | 2019-05-28 | 李晨阳 | Temperature Control Type automatic energy saving water mixing valve |
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