CN210069112U - Water return device, gas water heater and hot water system - Google Patents
Water return device, gas water heater and hot water system Download PDFInfo
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- CN210069112U CN210069112U CN201920685445.6U CN201920685445U CN210069112U CN 210069112 U CN210069112 U CN 210069112U CN 201920685445 U CN201920685445 U CN 201920685445U CN 210069112 U CN210069112 U CN 210069112U
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Abstract
The utility model relates to a return water device, gas heater and hot water system, return water device include: valve body, rivers detecting element, automatically controlled valve and controller, be equipped with first water route and second water route in the valve body, the one end in second water route with the lateral part intercommunication in first water route, the other end is used for and the wet return intercommunication, rivers detecting element locates in the first water route, automatically controlled valve locates in the second water route, rivers detecting element with automatically controlled valve all with controller electric connection, rivers detecting element is used for detecting the rivers signal in the first water route and will rivers signal feedback to the controller, so that the controller control automatically controlled valve leads to or breaks the second water route, above-mentioned water return device can prevent effectively that cold water from scurrying to the bathroom water pipe in, avoids bathroom temperature to fluctuate to effectively improve hot water heating system's use travelling comfort.
Description
Technical Field
The utility model relates to a hot water equipment technical field especially relates to a backwater device, gas heater and hot water system.
Background
The 'zero cold water' gas water heater circularly heats cold water in a pipeline, warm water reaching a set temperature can be used when a user opens a water tap, the condition that the user can only enjoy the warm water after discharging the cold water in the pipeline can be avoided, and the effects of saving time and water are achieved.
However, when the bathroom, in order to prevent that the cold water in the cold water pipe from flowing to the bathroom water pipe and influencing the temperature of bathroom, can install the check valve on the wet return of connecting cold water pipe and bathroom water pipe usually, but along with the increase of live time, the phenomenon that closes not tightly can appear in the check valve, and the check valve is invalid promptly, leads to during cold water drunkenness flows the bathroom water pipe, makes bathroom temperature undulant, greatly reduced travelling comfort.
SUMMERY OF THE UTILITY MODEL
Therefore, it is necessary to provide a water returning device, a gas water heater and a hot water system for solving the above technical problems, wherein the water returning device is stable and reliable, and can effectively prevent cold water from flowing into a bathroom water pipe, so as to avoid bathroom water temperature fluctuation, thereby effectively improving the use comfort of the hot water system.
In order to achieve the above object, the utility model also provides a water return device, water return device include: valve body, rivers detecting element, automatically controlled valve and controller, be equipped with first water route and second water route in the valve body, the one end in second water route with the lateral part intercommunication in first water route, the other end is used for and the wet return intercommunication, rivers detecting element locates in the first water route, automatically controlled valve locates in the second water route, rivers detecting element with automatically controlled valve all with controller electric connection, rivers detecting element is used for detecting rivers signal in the first water route will rivers signal feedback gives the controller, so that the controller control automatically controlled valve leads to or breaks the second water route.
Compared with the background art, the water return device at least has the following beneficial effects: in application, one end of the first water path is used for being communicated with a hot water pipe of the gas water heater, the other end of the first water path is used for being communicated with a bathroom water pipe, one end of the second water path is used for being communicated with the first water path, and the other end of the second water path is used for being communicated with a water return pipe of the gas water heater; in a bathroom mode, hot water enters a first waterway and enters a bathroom water pipe through the first waterway, at the moment, a water flow signal is detected by a water flow detection unit and fed back to a controller, the controller energizes an electric control valve to close the electric control valve so as to interrupt a second waterway, at the moment, cold water cannot flow into the first waterway from the second waterway, and therefore the problem that the bathroom water temperature fluctuates due to the fact that the cold water flows into the bathroom water pipe is avoided; after a user closes the mixed water valve, when the water temperature of the hot water pipe is lower than a set value, the mixed water valve enters a 'zero cold water' mode, at the moment, a water pump of the gas water heater is started, water in the hot water pipe sequentially flows into the water return pipe after passing through the first water path and the second water path, then flows into the cold water pipe from the water return pipe, and returns to the hot water pipe after being heated. Therefore, the water return device can effectively realize the zero cold water function of the gas water heater, and can effectively prevent cold water from flowing into a bathroom water pipe, so that the temperature fluctuation of the bathroom water is avoided, and the use comfort of a hot water system is effectively improved.
In one embodiment, the water pump further comprises a one-way valve, the one-way valve is arranged in the second water path, and the one-way valve is used for blocking external water from entering.
In one embodiment, an installation cavity for installing the electric control valve is arranged in the second waterway, and a sealing piece for sealing the connection position of the electric control valve and the second waterway is arranged on the side wall of the installation cavity.
In one embodiment, a backwater inlet channel and a backwater outlet channel are further arranged in the second water channel, the backwater inlet channel, the mounting cavity and the backwater outlet channel are sequentially communicated, one end, far away from the mounting cavity, of the backwater inlet channel is used for being communicated with the side portion of the first water channel, and one end, far away from the mounting cavity, of the backwater outlet channel is used for being communicated with the backwater pipe.
In one embodiment, the water flow detection unit comprises a housing, a magnetic rotor and a hall element, the housing is arranged in the first water path, the magnetic rotor is rotatably installed in the housing, the hall element is electrically connected with the controller, and the hall element is used for detecting a magnetic signal generated when the magnetic rotor rotates and feeding the magnetic signal back to the controller, so that the controller controls the electric control valve to be opened and closed.
In one embodiment, the water flow detection unit comprises a magnetic rotating plate and a hall element, the magnetic rotating plate is hinged to the side wall of the first water channel, the hall element is electrically connected with the controller, and the hall element is used for detecting a magnetic signal of the magnetic rotating plate and feeding the magnetic signal back to the controller, so that the controller controls the electric control valve to be opened and closed.
In one embodiment, the water flow detection unit includes a magnetic movable member and a dry reed switch, the magnetic movable member is disposed in the first water path and is movable along a length direction of the first water path, the dry reed switch is electrically connected to the controller, and the magnetic movable member closes the dry reed switch when moving to the dry reed switch, so that the controller controls the electric control valve to open and close.
In one embodiment, the water flow detection unit is disposed at a position downstream of a communication position of the first water path and the second water path.
In order to achieve the above object, the utility model provides a gas heater still provides, gas heater include hot-water line, cold water pipe, wet return, water pump and above-mentioned return device, the hot-water line first water route the second water route the wet return with the cold water pipe communicates in proper order and forms the return water route, the water pump is used for driving water and is in return water route inner loop flows.
Because the gas water heater adopts all the embodiments of the water return device, at least all the beneficial effects of the embodiments are achieved, and the detailed description is omitted.
In order to achieve the above object, the utility model provides a hot water system still provides, hot water system include bathroom water pipe, mix water valve and above-mentioned gas heater, the one end of bathroom water pipe be used for with first water route intercommunication, the other end of bathroom water pipe be used for with the hot water mouth of mixing the water valve is connected, the cold water mouth of mixing the water valve is used for with outside water piping connection.
Since the hot water system adopts all the embodiments of the gas water heater, at least all the advantages of the embodiments are achieved, and no further description is given here.
Drawings
Fig. 1 is a schematic structural view of a water returning device according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a valve body in the water return device shown in FIG. 1;
FIG. 3 is an enlarged schematic view of a water return device A shown in FIG. 1;
fig. 4 is a schematic structural view of a water returning device according to another embodiment of the present invention;
fig. 5 is a schematic structural view of a water returning device according to another embodiment of the present invention.
10. The water-saving valve comprises a valve body, 11, a first water channel, 111, a limiting step, 12, a second water channel, 121, a backwater inlet channel, 122, an installation cavity, 1221, a sealing piece, 1222, a sealing groove, 123, a backwater outlet channel, 21, a shell, 22, a magnetic rotor, 23, a Hall element, 24, a magnetic rotating plate, 241, a plate body, 242, a first magnetic block, 25, a magnetic moving piece, 251, a moving seat, 252, a second magnetic block, 26, a dry reed switch, 27, a limiting pipe, 30, an electric control valve, 40, a controller, 50 and a one-way valve.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. In the present invention, the terms "first" and "second" do not denote any particular quantity or order, but are merely used to distinguish names.
Example one
Referring to fig. 1, a water returning device includes: valve body 10, rivers detecting element, electric control valve 30 and controller 40, be equipped with first water route 11 and second water route 12 in the valve body 10, the one end of second water route 12 and the lateral part intercommunication of first water route 11, the other end is used for communicating with the wet return, rivers detecting element locates in first water route 11, electric control valve 30 locates in the second water route 12, rivers detecting element and electric control valve 30 all with controller 40 electric connection, rivers detecting element is arranged in detecting the rivers signal in the first water route 11 and feeds back rivers signal to controller 40, so that controller 40 control electric control valve 30 switches on or breaks off second water route 12.
In the application of the water return device, one end of the first water path 11 is used for being communicated with a hot water pipe of the gas water heater, the other end of the first water path is used for being communicated with a bathroom water pipe, one end of the second water path 12 is used for being communicated with the first water path 11, and the other end of the second water path is used for being communicated with a water return pipe of the gas water heater; in the bathroom mode, hot water enters the first waterway 11 and enters a bathroom water pipe through the first waterway 11, at this time, the water flow detection unit detects a water flow signal and feeds the water flow signal back to the controller 40, the controller 40 energizes the electric control valve 30 to close the electric control valve 30, so that the second waterway 12 is interrupted, at this time, cold water cannot flow into the first waterway 11 from the second waterway 12, and therefore the problem that the bathroom water temperature fluctuates due to the fact that the cold water flows into the bathroom water pipe is avoided; after a user closes the mixed water valve, when the water temperature of the hot water pipe is lower than a set value, the mode of 'zero cold water' is entered, at the moment, a water pump of the gas water heater is started, water in the hot water pipe sequentially flows into the water return pipe after passing through the first water path 11 and the second water path 12, then flows into the cold water pipe from the water return pipe, and returns to the hot water pipe after being heated, in the process, the water flow signal cannot be detected by the water flow detection unit, the controller 40 keeps the power-off state of the electric control valve 30, so that the electric control valve 30 is opened, the second water path 12 is conducted, and the water circulation flow is realized until the water temperature of the hot water pipe reaches the set value. Therefore, the water return device can effectively realize the zero cold water function of the gas water heater, and can effectively prevent cold water from flowing into a bathroom water pipe, so that the temperature fluctuation of the bathroom water is avoided, and the use comfort of a hot water system is effectively improved.
Specifically, the electronic control valve 30 may be a solenoid valve, and of course, the electronic control valve 30 may also be other valves whose opening and closing are controlled by an electric signal.
In an embodiment, with reference to fig. 1, the water returning device further includes a check valve 50, the check valve 50 is disposed in the second water path 12, and the check valve 50 is used for blocking external water from entering. Through set up check valve 50 in second water route 12, further block during outside cold water flows to first water route 11 from second water route 12 scurrying to avoid cold water scurrying to lead to the bathroom temperature to fluctuate in the bathroom water pipe more effectively, and then guarantee hot water system's use travelling comfort more effectively.
In an embodiment, referring to fig. 1, fig. 2 and fig. 3, an installation cavity 122 for installing the electric control valve 30 is disposed in the second waterway 12, and a sealing member 1221 for sealing a connection portion of the electric control valve 30 and the second waterway 12 is disposed on a side wall of the installation cavity 122. The sealing element 1221 can effectively seal the joint of the electric control valve 30 and the second waterway 12, prevent water from leaking from the joint of the electric control valve 30 and the second waterway 12, and effectively improve the sealing performance of the water return device.
Further, referring to fig. 2 and 3, a sealing groove 1222 is disposed on a sidewall of the mounting cavity 122, and a sealing member 1221 is disposed in the sealing groove 1222. The sealing element 1221 is limited by the sealing groove 1222, so that the situation that the sealing element 1221 is displaced to cause sealing failure can be avoided, and the sealing performance of the water return device is further improved.
Specifically, referring to fig. 2, a backwater inlet channel 121 and a backwater outlet channel 123 are further disposed in the second water channel 12, the backwater inlet channel 121, the installation cavity 122 and the backwater outlet channel 123 are sequentially communicated, one end of the backwater inlet channel 121, which is far away from the installation cavity 122, is used for communicating with a side portion of the first water channel 11, and one end of the backwater outlet channel 123, which is far away from the installation cavity 122, is used for communicating with a backwater pipe. In the bathroom mode, the electric control valve 30 interrupts a return water inlet passage and a return water outlet passage in the installation cavity 122, so that hot water flows out to a bathroom water pipe through the first waterway 11; in the "zero cold water" mode, the electronic control valve 30 switches on the return water inlet passage and the return water outlet passage in the installation cavity 122, so that the hot water sequentially flows into the return water pipe after passing through the first water passage 11 and the second water passage 12, then flows into the cold water pipe from the return water pipe, and returns to the hot water pipe after being heated, thereby realizing water circulation heating.
In an embodiment, referring to fig. 1, the water flow detecting unit includes a housing 21, a magnetic rotor 22 and a hall element 23, the housing 21 is disposed in the first water path 11, the magnetic rotor 22 is rotatably mounted in the housing 21, the hall element 23 is electrically connected to the controller 40, and the hall element 23 is configured to detect a magnetic signal generated by rotation of the magnetic rotor 22 and feed the magnetic signal back to the controller 40, so that the controller 40 controls the electronic control valve 30 to open and close. In the bathroom mode, when water enters the first waterway 11, the water flow drives the magnetic rotor 22 to rotate, the hall element 23 detects a magnetic signal of the magnetic rotor 22, and converts the magnetic signal into a pulse signal to be fed back to the controller 40, so that the controller 40 controls the electric control valve 30 to close.
In an embodiment, please refer to fig. 1, the water flow detecting unit is disposed at a downstream position of a communication position of the first waterway 11 and the second waterway 12. The water flow detection unit is arranged at the downstream position of the communication position of the first water channel 11 and the second water channel 12, so that the situation that the water flow detection unit falsely detects a water flow signal due to water flow in a zero cold water mode, and finally the controller 40 falsely controls the electric control valve 30 to close to cause the failure of the zero cold water mode can be effectively avoided, and the working reliability of the water return device is effectively improved.
Example two
The second embodiment is different from the first embodiment only in the structure of the water flow detection unit.
Referring to fig. 4, in the present embodiment, the water flow detecting unit includes a magnetic rotating plate 24 and a hall element 23, the magnetic rotating plate 24 is hinged to a side wall of the first water path 11, the hall element 23 is electrically connected to the controller 40, and the hall element 23 is configured to detect a magnetic signal of the magnetic rotating plate 24 and feed the magnetic signal back to the controller 40, so that the controller 40 controls the electric control valve 30 to open and close. In the bathroom mode, after water enters the first waterway 11, the water flow drives the magnetic rotating plate 24 to rotate, and when the magnetic rotating plate 24 rotates to the detection position of the hall element 23, the hall element 23 detects a magnetic signal of the magnetic rotating plate 24, converts the magnetic signal into a pulse signal, and feeds the pulse signal back to the controller 40, so that the controller 40 controls the electric control valve 30 to close.
Specifically, with reference to fig. 4, the magnetic rotating plate 24 includes a plate body 241 and a first magnetic block 242, the plate body 241 is hinged to the side wall of the first water path 11, and the first magnetic block 242 is disposed on a side of the plate body 241 close to the hall element 23.
EXAMPLE III
The third embodiment is different from the first embodiment only in the structure of the water flow detection unit.
Referring to fig. 5, in the present embodiment, the water flow detecting unit includes a magnetic movable member 25 and a reed switch 26, the magnetic movable member 25 is disposed in the first water path 11 and can move along the length direction of the first water path 11, the reed switch 26 is electrically connected to the controller 40, and when the magnetic movable member 25 moves to the reed switch 26, the reed switch 26 is closed, so that the controller 40 controls the electric control valve 30 to open and close. In the bathroom mode, after water enters the first waterway 11, the water flow drives the magnetic movable member 25 to move, and when the magnetic movable member 25 moves to a corresponding position of the reed switch 26, the magnetic action of the magnetic movable member 25 closes the reed switch 26, and an electric signal is fed back to the controller 40, so that the controller 40 controls the electric control valve 30 to close.
Specifically, referring to fig. 5, the magnetic movable member 25 includes a movable base 251 and a second magnetic block 252, the movable base 251 is movably disposed in the first waterway 11, and the second magnetic block 252 is disposed on the movable base 251.
Further, please continue to refer to fig. 5, the water flow detecting unit further includes a limiting pipe 27, the limiting pipe 27 is disposed in the first water path 11, a limiting step 111 is disposed on a side wall of the first water path 11, and the magnetic movable member 25 is disposed between the limiting pipe 27 and the limiting step 111 to limit a moving space of the magnetic movable member 25.
A gas water heater comprises a hot water pipe, a cold water pipe, a water return pipe, a water pump and the water return device, wherein the hot water pipe, a first water channel 11, a second water channel 12, the water return pipe and the cold water pipe are sequentially communicated to form a water return channel, and the water pump is used for driving water to circularly flow in the water return channel.
Because the gas water heater adopts all the embodiments of the water return device, at least all the beneficial effects of the embodiments are achieved, and the detailed description is omitted.
The utility model provides a hot water system, includes bathroom water pipe, mixes water valve and above-mentioned gas heater, the one end of bathroom water pipe be used for with first water route 11 intercommunications, the other end of bathroom water pipe be used for with mix the hot water mouth of water valve and be connected, mix the cold water mouth of water valve be used for with outside water piping connection.
Since the hot water system adopts all the embodiments of the gas water heater, at least all the advantages of the embodiments are achieved, and no further description is given here.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The water return device is characterized by comprising: valve body (10), rivers detecting element, electric control valve (30) and controller (40), be equipped with first water route (11) and second water route (12) in valve body (10), the one end of second water route (12) with the lateral part intercommunication in first water route (11), the other end is used for communicating with the wet return, rivers detecting element locates in first water route (11), electric control valve (30) are located in second water route (12), rivers detecting element with electric control valve (30) all with controller (40) electric connection, rivers detecting element is used for detecting rivers signal in first water route (11) and will rivers signal feedback controller (40), so that controller (40) control electric control valve (30) switch on or break second water route (12).
2. The water return device according to claim 1, further comprising a one-way valve (50), wherein the one-way valve (50) is disposed in the second water path (12), and the one-way valve (50) is used for blocking external water from entering.
3. The water return device according to claim 1, wherein an installation cavity (122) for installing the electric control valve (30) is arranged in the second water path (12), and a sealing member (1221) for sealing a connection position of the electric control valve (30) and the second water path (12) is arranged on a side wall of the installation cavity (122).
4. The water return device according to claim 3, wherein a water return inlet channel (121) and a water return outlet channel (123) are further arranged in the second water channel (12), the water return inlet channel (121), the installation cavity (122) and the water return outlet channel (123) are sequentially communicated, one end of the water return inlet channel (121) far away from the installation cavity (122) is used for being communicated with the side portion of the first water channel (11), and one end of the water return outlet channel (123) far away from the installation cavity (122) is used for being communicated with the water return pipe.
5. The water return device according to claim 1, wherein the water flow detection unit comprises a housing (21), a magnetic rotor (22) and a hall element (23), the housing (21) is disposed in the first water path (11), the magnetic rotor (22) is rotatably mounted in the housing (21), the hall element (23) is electrically connected to the controller (40), and the hall element (23) is configured to detect a magnetic signal generated when the magnetic rotor (22) rotates and feed the magnetic signal back to the controller (40), so that the controller (40) controls the electric control valve (30) to open and close.
6. The water return device according to claim 1, wherein the water flow detection unit comprises a magnetic rotating plate (24) and a hall element (23), the magnetic rotating plate (24) is hinged to a side wall of the first water channel (11), the hall element (23) is electrically connected to the controller (40), and the hall element (23) is used for detecting a magnetic signal of the magnetic rotating plate (24) and feeding the magnetic signal back to the controller (40), so that the controller (40) controls the electric control valve (30) to open and close.
7. The water return device according to claim 1, wherein the water flow detection unit includes a magnetic movable member (25) and a reed switch (26), the magnetic movable member (25) is disposed in the first water path (11) and is movable along a length direction of the first water path (11), the reed switch (26) is electrically connected to the controller (40), and when the magnetic movable member (25) moves to the reed switch (26), the reed switch (26) is closed, so that the controller (40) controls the electric control valve (30) to open and close.
8. A water return device according to any one of claims 1-7, characterized in that the water flow detection unit is arranged downstream of the connection between the first water circuit (11) and the second water circuit (12).
9. The gas water heater is characterized by comprising a hot water pipe, a cold water pipe, a water return pipe, a water pump and the water return device according to any one of claims 1 to 8, wherein the hot water pipe, the first water channel (11), the second water channel (12), the water return pipe and the cold water pipe are sequentially communicated to form a water return channel, and the water pump is used for driving water to circularly flow in the water return channel.
10. A hot water system, characterized in that the hot water system comprises a sanitary water pipe, a mixing water valve and the gas water heater of claim 9, wherein one end of the sanitary water pipe is used for communicating with the first waterway (11), the other end of the sanitary water pipe is used for connecting with a hot water port of the mixing water valve, and a cold water port of the mixing water valve is used for connecting with an external water pipe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920685445.6U CN210069112U (en) | 2019-05-14 | 2019-05-14 | Water return device, gas water heater and hot water system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920685445.6U CN210069112U (en) | 2019-05-14 | 2019-05-14 | Water return device, gas water heater and hot water system |
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| CN210069112U true CN210069112U (en) | 2020-02-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111473132A (en) * | 2020-03-09 | 2020-07-31 | 宁波方太厨具有限公司 | Water mixing prevention valve and water heater water supply system using same |
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2019
- 2019-05-14 CN CN201920685445.6U patent/CN210069112U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111473132A (en) * | 2020-03-09 | 2020-07-31 | 宁波方太厨具有限公司 | Water mixing prevention valve and water heater water supply system using same |
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