CN219156698U - An instant water purifier - Google Patents

Abstract

The utility model discloses an instant heating type water purifier, which belongs to the technical field of water purification and comprises a variable-frequency booster pump, an RO filter element and a controller, wherein the variable-frequency booster pump is electrically connected with the controller, a pure water outlet of the RO filter element is connected with a cold water output pipe and an instant hot water output pipe, the instant hot water output pipe is provided with a variable-frequency heating mechanism, a first temperature sensor and a first flowmeter are arranged in front of the variable-frequency heating mechanism, a second temperature sensor is arranged behind the variable-frequency heating mechanism, and the variable-frequency heating mechanism, the first temperature sensor, the second temperature sensor and the first flowmeter are electrically connected with the controller. The instant heating type water purifier is characterized in that a variable frequency heating mechanism is arranged, a first temperature sensor and a flow sensor are arranged in front of the variable frequency heating mechanism, a second temperature sensor is arranged behind the variable frequency heating mechanism, and the power of the variable frequency heating mechanism is adjusted through monitoring the water temperature and the flow before and after heating, so that the purpose of keeping the temperature of the outputted hot water constant is achieved.

Description

An instant water purifier

technical field

The utility model relates to the technical field of water purifiers, in particular to an instant water purifier.

Background technique

There are generally two types of water purifiers with hot water output. One is provided with a hot water storage tank, which can heat and store hot water, and can emit a large amount of hot water at a time. Relatively constant, but this kind of water purifier has a large volume, and in order to ensure the temperature of hot water, repeated heating not only consumes high energy, but also easily forms "old hot water" after repeated heating. The other is instant heating, which generally does not have a hot water storage tank. When the user takes water, it will be heated immediately and will not produce "old hot water". However, due to the limited power of instant heating, the amount of hot water output Limited, so that the booster pump starts and stops repeatedly, resulting in unstable water output, which will also lead to unstable water temperature, and ultimately lead to a decline in user experience.

It can be seen that the prior art still needs to be improved and enhanced.

Utility model content

In view of the deficiencies of the prior art above, the purpose of this utility model is to provide an instant water purifier, aiming at solving the defect of unstable temperature of the hot water output by the existing instant water purifier.

In order to achieve the above object, the utility model has taken the following technical solutions:

An instant water purifier, comprising a frequency conversion booster pump, an RO filter element, and a controller, the frequency conversion booster pump is electrically connected to the controller, and the pure water outlet of the RO filter element is connected with a cold water output pipe and an instant heat Water output pipe, wherein, the instant hot water output pipe is provided with a frequency conversion heating mechanism, a first temperature sensor and a first flowmeter are arranged in front of the frequency conversion heating mechanism, and a second temperature sensor is provided behind the frequency conversion heating mechanism, The frequency conversion heating mechanism, the first temperature sensor, the second temperature sensor and the first flowmeter are all electrically connected to the controller.

In the instant water purifier, a high-pressure water flow switch is also provided on the pipeline connected to the pure water outlet, and the high-pressure water flow switch is electrically connected to the controller, and can be adjusted according to the water pressure of the pure water outlet and Water flow conditions send different signals to the controller.

In the instant water purifier, a brushless frequency conversion pump is further provided between the first temperature sensor and the first flowmeter, and the brushless frequency conversion pump is electrically connected to the controller.

In the instant water purifier, a zero-pressure valve is also provided in front of the brushless frequency conversion pump.

In the instant water purifier, a first water quality sensor is provided before the frequency conversion booster pump, a second water quality sensor is provided behind the high-pressure water flow switch, and the first water quality sensor and the second water quality sensor The sensors are all electrically connected with the controller.

In the instant water purifier, a proportional regulating valve is also provided between the RO filter element and the high-pressure water flow switch, and one of the output pipelines of the proportional regulating valve is connected to the input end of the frequency conversion booster pump, and the The proportional regulating valve is electrically connected with the controller.

In the instant water purifier, a pre-filter element is provided before the frequency conversion booster pump.

In the instant water purifier, a post-filter element is provided after the high-pressure water flow switch, and the output ends of the post-filter element communicate with the cold water output pipe and the instant hot water output pipe respectively.

Beneficial effect:

The utility model provides an instant water purifier. By setting a frequency conversion heating mechanism, a first temperature sensor and a flow sensor are arranged before the frequency conversion heating mechanism, and a second temperature sensor is arranged behind the frequency conversion heating mechanism. and flow monitoring, adjust the power of the frequency conversion heating mechanism to achieve the purpose of keeping the temperature of the output hot water constant.

Description of drawings

Fig. 1 is a structural schematic diagram 1 of the instant water purifier provided by the utility model.

Fig. 2 is a structural schematic diagram of a high pressure water flow switch.

Fig. 3 is a structural schematic diagram II of the instant water purifier.

Fig. 4 is a structural schematic diagram III of the instant water purifier.

Fig. 5 is a structural schematic diagram 4 of the instant water purifier.

Marked in the drawings: 1-frequency conversion booster pump, 2-RO filter element, 3-water inlet pipeline, 4-pure water output pipeline, 5-concentrated water discharge pipeline, 6-water inlet solenoid valve, 7-cold water output Pipe, 8-hot water output pipe, 9-cold water solenoid valve, 10-water pump, 11-heating mechanism, 12-concentrated water solenoid valve, 13-first temperature sensor, 14-first flow meter, 15-second Temperature sensor, 16-high pressure water flow switch, 17-water pressure sensing part, 18-water flow sensing part, 19-proportional regulating valve, 20-zero pressure valve, 21-first water quality sensor, 22-second water quality sensor, 23- Pre-filter, 24-post filter.

Detailed ways

The utility model provides an instant water purifier. In order to make the purpose, technical solution and effect of the utility model clearer and clearer, the utility model will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Please refer to Fig. 1, this preferred embodiment provides an instant water purifier, said water purifier includes a frequency conversion booster pump 1 and an RO filter element 2 communicated through pipelines, and also includes a frequency conversion booster pump 1 input The end is connected to the water inlet pipeline 3, the pure water output pipeline 4 communicated with the pure water outlet of the RO filter element 2, and the concentrated water discharge pipeline 5 communicated with the concentrated water outlet of the RO filter element 2, wherein, the water inlet pipeline 3 is also provided with There is a water inlet solenoid valve 6, the pure water output pipeline 4 is connected with a cold water output pipe 7 and a hot water output pipe 8, the cold water output pipe 7 is provided with a cold water solenoid valve 9, and the instant hot water output pipe 8 is provided with a frequency conversion heating mechanism 11, the concentrated water discharge pipeline 5 is provided with a concentrated water solenoid valve 12, and the water purifier is also provided with a controller (not shown in the figure), and the frequency conversion booster The pump 1, the water inlet solenoid valve 6, the cold water solenoid valve 9, the concentrated water solenoid valve 12, and the frequency conversion heating mechanism 11 are all electrically connected to the controller, and their operation and shutdown can be controlled by the controller.

A first temperature sensor 13 and a first flowmeter 14 are provided before the variable frequency heating mechanism 11, and a second temperature sensor 15 is provided behind the variable frequency heating mechanism 11. The first temperature sensor 13, the second temperature sensor 15 and the The first flow meters 14 are electrically connected to the controller. When working, the first temperature sensor 13 and the second temperature sensor 15 can obtain the water temperature before and after the variable frequency heating mechanism 11, and transmit the water temperature information to the controller; Flow size, and passed to the controller. The controller calculates and adjusts the power of the variable-frequency heating mechanism 11 according to the flow rate and the water temperature before and after the variable-frequency variable-frequency heating mechanism 11, so as to keep the output hot water temperature constant. The instant water purifier described in this preferred embodiment can synchronously adjust the power of the heating mechanism when the flow rate changes or the water temperature before heating changes, thereby ensuring a constant output water temperature and improving user experience.

However, due to instant heating, the amount of hot water output will be small, especially when there is only hot water output but no cold water output, the variable frequency booster pump 1 will start and stop frequently, and the output will be pure. The amount of hot water in the water is unstable, and the unstable output of hot water will also cause the controller to repeatedly adjust the power of the frequency conversion heating mechanism 11 to obtain a relatively stable water temperature. However, frequently adjusting the power of the frequency conversion heating mechanism 11 will still affect the fluctuation of the outlet water temperature. In this regard, in a preferred embodiment, as shown in Figure 2, the pure water output pipeline 4 is also provided with a high-pressure water flow switch 16, the high-pressure water flow switch 16 is electrically connected to the controller, and can be According to the water pressure and water flow in the pure water output pipe, different signals are sent to the controller, which is convenient for the controller to send different control signals to the frequency conversion booster pump, so as to avoid frequent start and stop when the pure water output is small.

Specifically, as shown in FIG. 2, the high-pressure water flow switch 16 includes a water pressure sensing part 17 and a water flow sensing part 18, and the water pressure sensing part 17 and the water flow sensing part 18 are respectively electrically connected to the controller, and can be When the water pressure and water flow state are different, different signals are triggered to the controller. For example, when the pure water output pipe has pure water output and the pure water output is equal to the water yield of the RO filter element 2, the water pressure sensing part 17 is disconnected from the controller, and the water flow sensing part 18 is in a closed state with the controller , the controller sends out a control signal to start the variable frequency booster pump 1 and run at the rated power according to the connection status; , the water pressure in the pure water output pipeline 4 will gradually increase, so that the water pressure sensing part communicates with the controller. At the same time, due to the pure water output, the water flow sensing part also communicates with the controller. Reduce the control signal of the power of the variable frequency booster pump, and the amount of power reduction of the variable frequency booster pump is calculated according to the flow obtained by the flowmeter; when the pure water output in the pure water output pipeline is zero, the water flow sensing part 18 and the control The connection of the device is disconnected, and the water pressure in the pure water delivery pipeline is relatively high. At this time, the controller sends a control signal to turn off the frequency conversion booster pump 1.

Therefore, by arranging the high-pressure water flow switch 16, the instant water purifier will not frequently start and stop the frequency conversion booster pump 1 when the output of pure water is small, so that the output of pure water can be stabilized and avoid Unstable pure water output leads to the situation that the frequency conversion heating mechanism 11 needs to constantly adjust the power, thereby making the hot water output and temperature more stable, and prolonging the service life of the frequency conversion booster pump.

In some embodiments, as shown in FIG. 1 , a brushless frequency conversion pump 10 is also provided between the first temperature sensor 13 and the first flowmeter 14, and the brushless frequency conversion pump 10 is electrically connected to the controller. Used to control the amount of hot water output. In the specific implementation process, when the amount of hot water drawn is large, the power of the frequency conversion heating mechanism 11 cannot meet the demand for heating capacity, so that the temperature of the hot water output cannot reach the set value. At this time, the controller adjusts the variable frequency booster pump 1 according to the water temperature information obtained by the second temperature sensor 15 (sometimes the power of the variable frequency booster pump 1 has reached the maximum, but the output hot water temperature still cannot reach setting value), and reduce the power of the brushless frequency conversion pump 10 simultaneously to reduce the water output and achieve the purpose of ensuring a constant output temperature of hot water.

In one embodiment, as shown in Figure 1, a zero pressure valve 20 is provided in front of the brushless variable frequency pump 10, and the zero pressure valve 20 can adjust the pure water flowing to the brushless variable frequency pump 10 to zero pressure state, thereby making the brushless frequency conversion pump 10 more precise in the control of the pure water delivery volume, and more conducive to controlling the power of the frequency conversion heating mechanism 11 and the temperature of the hot water output.

Since the purification ability of the RO filter element 2 is related to the water quality, when the water quality is good, the pressure required for water to pass through the reverse osmosis membrane is small, and the power of the booster pump is small; The higher the pressure, the higher the power of the booster pump is required. In order to adjust the power of the booster pump so that it can be adapted to the output of pure water, in one embodiment, as shown in FIG. A second water quality sensor 22 is provided behind the high pressure water flow switch 16, and both the first water quality sensor 21 and the second water quality sensor 22 are electrically connected to the controller. Through the first water quality sensor 21, the water quality before purification can be known in real time. When the water quality is poor, the controller increases the power of the booster pump, and when the water quality is low, decreases the power of the booster pump to obtain stable pure water output. And through the second water quality sensor 22, the TDS value of purified or pure water can be checked in real time, which is convenient for the controller to adjust the frequency of the booster pump according to the water quality before and after purification, so as to ensure the pure water output while ensuring the quality of pure water .

However, when the quality of the water source is poor, the stability of pure water output can be ensured by increasing the power of the frequency conversion booster pump 1, but when the pressure of the frequency conversion booster pump 1 is too high, the RO filter element 2 and frequency conversion will be reduced. The service life of the booster pump 1 is improved, and the backwashing frequency of the RO filter element 2 is increased at the same time. In this regard, in one embodiment, a pre-filter element 23 is also provided in front of the frequency conversion booster pump 1, and the pre-filter element 23 may be one filter element, as shown in Figure 3, or may be a plurality of series-connected The filter element, as shown in Figure 4, is a composite filter element and a carbon limit filter element connected in series, among which, multiple filter elements connected in series have a better filtering effect. By setting the pre-filter element 23 , large particles of solid impurities in the source water can be removed, the water quality of the source water can be improved, and the frequency of the frequency conversion booster pump 1 and the backwash frequency of the RO filter element 2 can be reduced.

In a preferred embodiment, as shown in Fig. 3 and Fig. 4, a post-filter element 24 is also provided behind the high-pressure water flow switch 16, and the post-filter element 24 is an activated carbon filter element, and the post-filter element 24 The output end of 24 communicates with the cold water output pipe 7 and the instant hot water output pipe 8 respectively, through the purification effect of the rear filter element 24, the pure water quality can be made higher, and the user's higher requirements for water quality can be satisfied.

When the instant water purifier with the above structure is not used for a long time or stops working for a long time, the water quality of the first glass of water is likely to be substandard, thereby degrading the user experience. In this regard, in one embodiment, as shown in Figure 5, a proportional regulating valve 19 is also provided between the RO filter element 2 and the high-pressure water flow switch 16, and the proportional regulating valve 19 is provided with a water inlet end, which is connected to the The pure water outlet of the RO filter element 2 is connected, and it is also provided with two output ports, wherein the first output port communicates with the pure water output pipeline 4, and the second output port communicates with the input end of the frequency conversion booster pump 1 through the pipeline, and, The proportional regulating valve 19 is electrically connected with the controller. In the specific implementation process, when the water purifier does not use water for a long time or stops working for a long time, and restarts, the proportional regulating valve 19 will close the first output port, so that the pure water produced will return to the frequency conversion along the second output port. The input end of the booster pump 1, and then re-filtered to avoid the output of the unqualified first cup of water. After one end of running time and the water quality reaches the standard, the second output port is closed, the first output port is connected, and the pure water produced by the RO filter element 2 can be output normally.

In summary, the instant water purifier described in the utility model, by setting the frequency conversion heating mechanism, setting the first temperature sensor and the flow sensor before the frequency conversion heating mechanism, and setting the second temperature sensor after the frequency conversion heating mechanism, through the Monitor the water temperature and flow before and after heating, and adjust the power of the frequency conversion heating mechanism to achieve the purpose of keeping the hot water outlet temperature constant.

It should be noted that, in the description of the embodiments of the present utility model, the orientations or positional relationships indicated by the terms "inner", "outer", "upper", "lower", "left", "right" etc. are based on the drawings. The orientation or positional relationship shown, or the orientation or positional relationship that the inventive product is usually placed in use, is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation , constructed and operated in a particular orientation and therefore should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are only used for distinguishing descriptions, and should not be construed as indicating or implying relative importance.

In the description of the embodiments of the present utility model, it should also be noted that, unless otherwise clearly stipulated and limited, the terms "setting" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; can be mechanically connected, can be directly connected, can also be indirectly connected through an intermediary, and can be an internal communication between two elements. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

It can be understood that, for those skilled in the art, equivalent replacements or changes can be made according to the technical scheme of the utility model and its concept, and all these changes or replacements should belong to the protection scope of the appended claims of the utility model .

Claims (8)

1. An instant water purifier, comprising a frequency conversion booster pump, an RO filter element, a controller, the frequency conversion booster pump is electrically connected to the controller, and the pure water outlet of the RO filter element is connected with a cold water output pipe and That is, the hot water output pipe is characterized in that the instant hot water output pipe is provided with a frequency conversion heating mechanism, a first temperature sensor and a first flow meter are arranged in front of the frequency conversion heating mechanism, and a second temperature sensor is arranged behind the frequency conversion heating mechanism. Two temperature sensors, the frequency conversion heating mechanism, the first temperature sensor, the second temperature sensor and the first flowmeter are all electrically connected to the controller. 2. The instant water purifier according to claim 1, characterized in that a high-pressure water flow switch is also provided on the pipeline connected to the pure water outlet, and the high-pressure water flow switch is electrically connected to the controller, and Different signals can be sent to the controller according to the water pressure and flow conditions of the pure water outlet. 3. The instant water purifier according to claim 2, characterized in that, a brushless frequency conversion pump is also provided between the first temperature sensor and the first flow meter, and the brushless frequency conversion pump and the controller electrical connection. 4. The instant water purifier according to claim 3, characterized in that, a zero pressure valve is also provided in front of the brushless frequency conversion pump. 5. The instant water purifier according to claim 3, characterized in that, a first water quality sensor is provided before the frequency conversion booster pump, and a second water quality sensor is provided behind the high-pressure water flow switch, so that Both the first water quality sensor and the second water quality sensor are electrically connected to the controller. 6. The instant water purifier according to claim 5, characterized in that, a proportional regulating valve is provided between the RO filter element and the high-pressure water flow switch, and one of the output pipelines of the proportional regulating valve is connected to a variable frequency multiplier. The input end of the pressure pump, and the proportional regulating valve is electrically connected with the controller. 7. The instant water purifier according to claim 6, characterized in that, a pre-filter element is provided in front of the frequency conversion booster pump. 8. The instant water purifier according to claim 6, characterized in that a rear filter element is provided behind the high-pressure water flow switch, and the output end of the rear filter element is connected to the cold water output pipe and the instant hot water respectively. The output pipe is connected.

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