CN212781743U

CN212781743U - Water treatment system and outage sealing device thereof

Info

Publication number: CN212781743U
Application number: CN202022279586.3U
Authority: CN
Inventors: 付卫刚; 张伟; 白洁
Original assignee: AO Smith China Water Heater Co Ltd; AO Smith China Environmental Products Co Ltd
Current assignee: AO Smith China Water Heater Co Ltd; AO Smith China Environmental Products Co Ltd
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2021-03-23
Anticipated expiration: 2030-10-13

Abstract

The embodiment of the specification provides a water treatment system and a power-off water-stop device thereof, and the device comprises: the controllable valve is arranged on a sewage discharge pipeline of the water treatment equipment; the power failure detection circuit is used for detecting whether a power supply signal is in power failure or not and outputting a power failure signal when the power supply signal is detected to be in power failure; the capacitor energy storage circuit is used for discharging to the power-off water stop device when the power supply signal is powered off; and the controller is used for controlling the controllable valve to be closed under the power supply of the capacitive energy storage circuit when the power failure signal is received. The embodiment of the specification can realize that when the water treatment equipment is powered off accidentally in the flushing process, the sewage pipeline of the water treatment equipment is automatically closed, so that the water resource waste and the risk of the user family being soaked by water are reduced or avoided.

Description

Water treatment system and outage sealing device thereof

Technical Field

The specification relates to the technical field of water treatment equipment, in particular to a water treatment system and a power-off water stopping device thereof.

Background

With the improvement of living standard, water treatment equipment such as water purification equipment and water softening equipment has become common household electrical appliances. At present, the equipment generally needs periodic flushing (the flushing time is short, namely several minutes, and long, namely tens of minutes) during the operation process so as to ensure the normal operation of the equipment. However, if an unexpected power failure occurs during the flushing process, the flush valve of the water treatment apparatus is kept in an open state (i.e., the water treatment apparatus is continuously in a flushing state), so that the sewage line of the water treatment apparatus is continuously drained. Thus, not only is water resource wasted, but also a large amount of drainage can cause the risk of the user's family being soaked by water.

SUMMERY OF THE UTILITY MODEL

An object of this specification embodiment is to provide a water treatment system and outage sealing device thereof to realize that the sewage pipes of water treatment equipment closes automatically when unexpected outage occurs in the process of washing, so as to reduce or avoid water resource waste and the risk of being soaked by water in the user's family.

In order to achieve the above object, in one aspect, an embodiment of the present specification provides a power-off and water-stop device, including:

the controllable valve is arranged on a sewage discharge pipeline of the water treatment equipment;

the power failure detection circuit is used for detecting whether a power supply signal is in power failure or not and outputting a power failure signal when the power supply signal is detected to be in power failure;

the capacitor energy storage circuit is used for discharging to the power-off water stop device when the power supply signal is powered off;

and the controller is used for controlling the controllable valve to be closed under the power supply of the capacitive energy storage circuit when the power failure signal is received.

In an embodiment of this specification, when the power signal is an ac electrical signal, the power-down detection circuit acquires a zero-crossing falling edge signal and/or a zero-crossing rising edge signal of the ac electrical signal, so as to detect whether the power signal is powered down.

In an embodiment of this specification, when the power signal is a dc signal, the power-down detection circuit acquires a voltage signal of the dc signal to detect whether the power signal is powered down.

In an embodiment of the present description, the controllable valve comprises a pulsed solenoid valve.

In one embodiment of the present disclosure, the controllable valves are connected in parallel or in single or multiple.

In an embodiment of this specification, the power-off water-stop device further includes:

and the water leakage detector is used for detecting whether the sewage discharge pipeline leaks water or not and outputting a water leakage signal when detecting that the sewage discharge pipeline leaks water, so that the controller controls the controllable valve to be closed when receiving the water leakage signal.

In an embodiment of the present specification, the water leakage detector is further configured to:

and when the water leakage fault recovery of the sewage draining pipeline is detected, a reset signal is output, so that the controller controls the controllable valve to be opened when receiving the reset signal.

In an embodiment of the present specification, the water leakage detector includes a flow sensor.

In an embodiment of this specification, the power-down detection circuit is further configured to output a power-up signal when detecting that the power supply signal is powered up again after power down, so that the controller controls the controllable valve to be opened when receiving the power-up signal.

and the alarm circuit is controlled by the controller and is used for outputting an alarm signal when the controller detects that the power failure detection circuit has a fault.

On the other hand, the embodiment of the specification further provides a water treatment system, which comprises water treatment equipment and the power-off water-stop device.

In an embodiment of the present specification, the power-off and water-stop device is integrated in the water treatment apparatus.

In an embodiment of the present specification, the power-off and water-stop device is an accessory device disposed outside the water treatment apparatus.

It can be seen from the above technical solutions provided in the embodiments of the present specification that, in the embodiments of the present specification, when the power failure detection circuit detects a power failure, the capacitor energy storage circuit is used to discharge the provided electric energy in a short time, and the controller can control the controllable valve arranged on the sewage pipeline of the water treatment equipment to close, so that even if the flushing valve of the water treatment equipment is in an open (i.e., open) state in the power failure, the sewage pipeline of the water treatment equipment cannot form a water flow path, thereby effectively reducing or avoiding water resource waste and a risk of water bubbles in a user household due to an unexpected power failure in the flushing state of the water treatment equipment.

Drawings

In order to more clearly illustrate the embodiments of the present specification or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments described in the present specification, and for those skilled in the art, other drawings can be obtained according to the drawings without any creative effort. In the drawings:

FIG. 1 is a block diagram of a power-off and water-stop device in some embodiments of the present disclosure;

FIG. 2 is a schematic illustration of a water treatment system in accordance with certain embodiments of the present disclosure;

FIG. 3 is a schematic view of a water treatment system in accordance with further embodiments of the present disclosure;

FIG. 4 is a block diagram of a power-off and water-stop device in other embodiments of the present disclosure;

FIG. 5 is a schematic diagram of a zero-crossing falling edge signal in one embodiment of the present disclosure;

fig. 6 is a schematic diagram of a zero-crossing rising edge signal in an embodiment of the present disclosure.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present specification, the technical solutions in the embodiments of the present specification will be clearly and completely described below with reference to the drawings in the embodiments of the present specification, and it is obvious that the described embodiments are only a part of the embodiments of the present specification, and not all of the embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments in the present specification without any inventive step should fall within the scope of protection of the present specification. For example, in some descriptions, forming the second feature over the first feature may include embodiments in which the first and second features are formed in direct contact, embodiments in which the first and second features are formed in non-direct contact (i.e., additional features may be included between the first and second features), and so on.

Also, for ease of description, some embodiments of the present description may use spatially relative terms such as "above …," "below …," "top," "below," etc., to describe the relationship of one element or component to another (or other) element or component as illustrated in the various figures of the embodiments. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements or components described as "below" or "beneath" other elements or components would then be oriented "above" or "over" the other elements or components.

The water treatment system in the embodiment of the specification can comprise a water treatment device and a power-off water-stop device. Wherein, the water treatment equipment can be water purification equipment, water softening equipment and the like. The water purification apparatus is a water treatment apparatus that purifies raw water (e.g., tap water) to remove suspended solids, residual chlorine, heavy metal bacteria, viruses, algae, and the like in the raw water, thereby producing purified water meeting a specified water quality standard. In some embodiments of the present disclosure, the water purifying apparatus may be, for example, a water purifier, a central water purifier, or the like. The water softener is a water treatment device that softens raw water (e.g., tap water) to remove calcium and magnesium ions in the raw water, thereby reducing water hardness. In some embodiments herein, the water softener may be, for example, a water softener, a central water softener, or the like.

Referring to fig. 1, in some embodiments of the present specification, the power-off and water-stop device may include a controllable valve, a power-off detection circuit, a capacitive energy storage circuit, and a controller. Wherein, the controllable valve can be used for arranging a sewage discharge pipeline of the water treatment equipment; the power failure detection circuit can be used for detecting whether a power supply signal is powered down or not and outputting a power failure signal when the power supply signal is detected to be powered down; the capacitor energy storage circuit can be used for discharging to the power-off water-stop device when the power supply signal is powered off; the controller may be configured to control the controllable valve to close when the power down signal is received, under power supplied by the capacitive storage circuit.

When the power failure detection circuit detects the power failure, the electric energy provided by the short-time discharge of the capacitor energy storage circuit is utilized, the controller can control the controllable valve arranged on the sewage discharge pipeline of the water treatment equipment to be closed, so that even if the flushing valve of the water treatment equipment is continuously opened (namely opened) due to the accidental power failure, the sewage discharge pipeline of the water treatment equipment can not form a water circulation path, and therefore the water resource waste and the user family water-soaked risk caused by the accidental power failure of the water treatment equipment under the flushing state are effectively reduced or avoided. It should be noted that the power failure and power outage mentioned in the present specification refer to unexpected interruption of external power supply (i.e., unexpected power outage).

In some embodiments of the present disclosure, as shown in fig. 2, the power-off water-stop device may be an accessory device disposed outside the water treatment apparatus, that is, the power-off water-stop device may be a separate device independent from the water treatment apparatus. When the device is implemented, the power-off water-stop device can be arranged on a sewage discharge pipeline of the water treatment equipment, and an independent power adapter (not shown in the figure) is configured. So, under the condition that the user has originally installed water treatment facilities, only through addding outage sealing device, can realize reducing or avoid water treatment facilities to be because of the water waste and the user family that unexpected outage leads to is by the bleb risk under the state of washing to make the user can realize the upgrading transformation of original water treatment facilities with low costs.

In other embodiments of the present disclosure, as shown in fig. 3, the power-off and water-stop device may be integrated into the water treatment apparatus. Therefore, the volume size of the water treatment system can be reduced, and the installation and the use of a user are facilitated. Therefore, it may be more suitable for users who do not originally install the water treatment apparatus. In the water treatment apparatus shown in fig. 3, the water treatment device is a functional main body of the water treatment apparatus, and is used for purifying or softening raw water.

In the embodiment of the specification, the on and off of the sewage discharge pipeline of the water treatment equipment can be controlled by using the controllable valve. In a normal state, the controllable valve is in an open state (i.e. the open state is the normal state of the controllable valve) so as to avoid affecting the normal drainage of the sewage pipeline. When the water treatment equipment is powered off accidentally in a flushing state, the controllable valve is temporarily closed to block the conduction of the sewage discharge pipeline.

In some embodiments of the present disclosure, the power-down detection circuit may be further configured to output a power-up signal when detecting that the power signal is powered up again after power down, so that the controller controls the controllable valve to open when receiving the power-up signal, and recovers the normally open state of the controllable valve, so as to avoid affecting normal drainage of the sewage pipe.

In some embodiments of the present disclosure, the controllable valve may be a single valve or a plurality of valves (e.g., two valves). When a plurality of controllable valves are adopted, a parallel structure can be formed among the controllable valves, so that the purpose of improving the reliability of equipment while improving the water passing amount is achieved.

In some embodiments of the present description, the controllable valve may be any suitable solenoid valve. For example, in one embodiment, the controllable valve may be a pulsed solenoid valve. Because the energy storage of the capacitor energy storage circuit is limited, the discharging of the capacitor energy storage circuit can be maintained for a short time, so that the low-power-consumption electromagnetic valve adopting the pulse electromagnetic valve is more suitable, and the problems of scaling blockage, closing failure and the like caused by long-time electrification and heating of the controllable valve can be effectively reduced or avoided by adopting the pulse electromagnetic valve. In addition, in order to ensure rapid and reliable valve closing, the driving signal output by the controller for driving the pulse electromagnetic valve can be as short as possible under the condition that the valve driving is satisfied.

In some embodiments of the present description, the power failure detection circuit may be a direct current power failure detection circuit or an alternating current power failure detection circuit, and may be specifically determined according to a power supply module. In one embodiment, in the case that the power-off water-stop device is arranged outside the water treatment equipment and serves as an accessory equipment thereof, the power-off water-stop device can be provided with a separate power module; therefore, the type of the power failure detection circuit can be selected according to the output of the power module of the power failure water stop device. In another embodiment, for the case that the power-off water-stop device is integrated in the water treatment equipment, the power-off water-stop device and the water treatment equipment can share the same power module; therefore, the type of the power failure detection circuit can be selected according to the output of the shared power supply module.

For convenience of description, the dc power down detection circuit and the ac power down detection circuit will be described below by taking the case where the power-off and water-stop device is integrated in the water treatment apparatus as an example.

For example, in one embodiment, when the power module of the water treatment apparatus is a dc power supply, the power down detection circuit may be a dc power down detection circuit. Under the power supply of the direct-current power supply, a power supply signal output by the direct-current power supply is a direct-current signal, and the direct-current power failure detection circuit can acquire a voltage signal of the direct-current signal so as to detect whether the direct-current power supply signal is powered down. For example, for 12V dc, if the detected voltage is about 12V, it indicates that the power supply is normal, and at this time, the dc power down detection circuit may output a high level to the controller; if the detected voltage is lower than the lower limit value, the power supply is powered down, and at the moment, the direct current power failure detection circuit can output a low level (namely a power failure signal) to the controller.

For another example, in another embodiment, when the power module of the water treatment apparatus is an ac power source, the power down detection circuit may be an ac power down detection circuit. Under the power supply of an alternating current power supply, the alternating current power failure detection circuit can acquire a zero-crossing falling edge signal and/or a zero-crossing rising edge signal of an alternating current signal so as to detect whether the alternating current power supply signal is powered down. The waveform of the alternating current is generally a sine wave, and during the process of changing the alternating current signal from a positive value to a negative value, the signal zero point is passed, so that a zero-crossing falling edge (such as shown by the arrow direction in fig. 5) occurs. Similarly, during the process of changing the ac signal from a negative value to a positive value, the signal zero point is also passed, and a zero-crossing rising edge (for example, as indicated by the arrow in fig. 6) occurs. Because the alternating current signal is a periodic sine wave, under the condition of normal power supply, both the zero-crossing falling edge signal and the zero-crossing rising edge signal appear periodically. Once the alternating current power supply is powered down, the zero-crossing falling edge signal and the zero-crossing rising edge signal can not appear any more. Therefore, the alternating current power failure detection circuit can judge whether the alternating current power supply is powered down or not by detecting the zero-crossing falling edge signal and/or the zero-crossing rising edge signal.

In some embodiments of the present disclosure, any known and suitable power failure detection circuit may be used for the dc power failure detection circuit and the ac power failure detection circuit, which is not limited in this disclosure.

Compared with energy storage devices such as batteries and inductive energy storage circuits, the embodiment of the specification adopts the capacitive energy storage circuit as the energy storage device, so that the implementation cost and the equipment volume can be reduced. Under the condition of normal power supply, the power supply module charges an energy storage capacitor in the capacitor energy storage circuit until the voltage at two ends of the energy storage capacitor is equal to the output voltage of the power supply module, and the power supply module enters a stable state. When the power is cut off, the energy storage capacitor begins to discharge outwards, namely the capacitor energy storage circuit can discharge to the controller, the controllable valve and the like for a short time, so that the controller can still control the controllable valve to be closed under the power supply of the capacitor energy storage circuit under the condition of accidental power failure. In practical implementation, the capacitance capacity of the energy storage capacitor in the capacitive energy storage circuit at least meets the electric quantity required by the power-off valve closing.

In some embodiments of the present disclosure, any known and suitable capacitive storage circuit may be used as the capacitive storage circuit, and the present disclosure is not limited thereto.

Referring to fig. 4, in other embodiments of the present disclosure, the power-off and water-stop device may further include a water leakage detector. The water leakage detector can be used for detecting whether the sewage draining pipeline leaks water or not and outputting a water leakage signal when detecting that the sewage draining pipeline leaks water, so that the controller controls the controllable valve to be closed when receiving the water leakage signal, and water resources are saved.

As already explained above, the controllable valve is in a normally open state, and the sewage line should be flow-free when the flush valve of the water treatment apparatus is in a closed state. If the flush valve is in a closed position, a water leak detector detects a flow (typically a small flow) indicating that the flush valve may malfunction or not close in place, resulting in a water leak. To control the water leak, the controller may control the controllable valve to close upon receiving the water leak signal. Of course, when the water leakage fault of the sewage discharge pipeline is detected to be recovered, the water leakage detector can also output a reset signal, so that the controller controls the controllable valve to be opened when receiving the reset signal, and thus, the controllable valve can be prevented from blocking the normal water discharge of the water treatment equipment. In an embodiment of the present disclosure, the water leakage detector may be, for example, a flow sensor, a flow meter, or other devices with similar functions.

Referring to fig. 4, in other embodiments of the present disclosure, the power-off and water-stop device may further include an alarm circuit. The alarm circuit is controlled by the controller and can be used for outputting an alarm signal when the controller detects that the power failure detection circuit is in fault so as to remind a user of coping processing. In another embodiment of the present disclosure, when the water leakage detector detects that the sewage draining pipeline has a water leakage fault, another alarm signal may be output to remind the user to handle the water leakage fault. In one embodiment of the present disclosure, the alarm circuit may be a low power consumption audio alarm circuit or a flashing alarm circuit.

In some embodiments of the present disclosure, the Controller may include, but is not limited to, a single chip microcomputer, a Micro Control Unit (MCU), a Digital Signal Processor (DSP), a Programmable Logic Controller (PLC), and so on.

It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a device or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such device or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of another like element in a device or apparatus that comprises the element.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A kind of outage water stop device, characterized by comprising:

2. A power failure and water stop device according to claim 1, wherein when the power signal is an ac signal, the power failure detection circuit collects a zero-crossing falling edge signal and/or a zero-crossing rising edge signal of the ac signal to detect whether the power signal is powered down.

3. A power failure water stop device according to claim 1, wherein when the power signal is a dc signal, the power failure detection circuit collects a voltage signal of the dc signal to detect whether the power signal is powered down.

4. The power-off water-stopping device according to claim 1, wherein the controllable valve comprises a pulse solenoid valve.

5. A power-off water stopping device according to claim 1, wherein the controllable valves are singly or in parallel.

6. The power-off water-stop device according to claim 1, further comprising:

7. A power-off water-stop device as claimed in claim 6, wherein said water leakage detector is further configured to:

8. A power-off water stop device according to claim 6 or 7, wherein the water leakage detector comprises a flow sensor.

9. A power-off and water-stopping device as claimed in claim 1, wherein the power-down detection circuit is further configured to output a power-up signal when detecting that the power signal is powered up again after power-down, so that the controller controls the controllable valve to be opened when receiving the power-up signal.

10. The power-off water-stop device according to claim 1, further comprising:

11. A water treatment system, characterized by comprising a water treatment apparatus and the power-off water-stop device of any one of claims 1 to 10.

12. The water treatment system of claim 11 wherein said power-off water stop is integrated into said water treatment apparatus.

13. The water treatment system of claim 11 wherein said power-off and water-stop means is an accessory device disposed outside said water treatment apparatus.