CN219009957U - Kitchen water preparation system and kitchen water drinking device thereof - Google Patents

Abstract

The utility model relates to the technical field of kitchen water drinking equipment, and particularly provides a kitchen water preparation system and a kitchen water drinking device thereof. The kitchen water preparation system comprises a filtering unit, a heat exchanger and a heat liner; the water inlet end of the filtering unit is connected with a water source, the water purifying end of the filtering unit is communicated with the water outlet end, the heat exchanger comprises a hot water inlet, a warm water outlet, a cold water inlet and a cold water outlet, the cold water inlet is communicated with the water purifying end of the filtering unit, the warm water outlet is communicated with the water outlet end, the hot liner comprises a water inlet and a water outlet, the water inlet of the hot liner is communicated with the cold water outlet, and the water outlet of the hot liner is communicated with the hot water inlet or the water outlet of the hot liner is respectively communicated with the hot water inlet and the water outlet end. Through the arrangement, pure water filtered by the filtering unit flows through the heat exchanger and then enters the hot liner to be heated to a boiled water state, and boiled water enters warm water which is formed by internal heat exchange and cooling of the heat exchanger through the water outlet of the hot liner and can be directly drunk, so that the water outlet quality of the kitchen water making system is improved.

Description

Kitchen water preparation system and kitchen water drinking device thereof

Technical Field

The utility model relates to the technical field of kitchen water drinking equipment, and particularly provides a kitchen water preparation system and a kitchen water drinking device thereof.

Background

The traditional kitchen water purifying and drinking integrated machine uses the hot liner to heat pure water, and after the pure water is heated to a boiled water state in the hot liner, the boiled water after being taken out can be drunk after being cooled, so that a plurality of inconveniences are brought to a user.

The existing kitchen instant heating water dispenser outputs warm water with different temperatures in a mode of mixing pure water with boiled hot water. Although the output mode of the water is convenient for a user to directly take the drunk warm water, bacteria growing in the filter element or the connecting pipeline are inevitably carried in the pure water, and bacteria in the pure water cannot be effectively removed in the output mode of the warm water formed by mixing the boiled water and the pure water, so that the water quality safety of the mixed warm water cannot be ensured, and the user experience is poor.

Accordingly, there is a need in the art for a new under-kitchen water making system that addresses the above-described problems.

Disclosure of Invention

In order to solve the problems in the prior art, namely to solve the problem of poor water quality caused by mixing pure water with boiled water in the existing kitchen water dispenser.

In a first aspect, the present utility model provides a under-kitchen water making system comprising a water outlet end, the under-kitchen water making system comprising: the water inlet end of the filtering unit is connected with a water source, and the water purifying end of the filtering unit is communicated with the water outlet end; a heat exchanger comprising a hot water inlet, a warm water outlet, a cold water inlet and a cold water outlet, wherein the cold water inlet is communicated with the water purifying end of the filtering unit, and the warm water outlet is communicated with the water outlet end; the hot liner comprises a water inlet and a water outlet, the water inlet of the hot liner is communicated with the cold water outlet, and the water outlet of the hot liner is communicated with the hot water inlet or the water outlet of the hot liner is respectively communicated with the hot water inlet and the water outlet end.

In the preferable technical scheme of the kitchen water making system, the hot liner further comprises a water level probe.

In the preferable technical scheme of the kitchen water making system, the water level probe comprises a first water level probe and a second water level probe which are positioned at the top of the hot liner, and the length of the first water level probe is greater than that of the second water level probe.

In the preferable technical scheme of the kitchen water making system, the hot liner further comprises an exhaust port, and the exhaust port is communicated with the water outlet end.

In the preferable technical scheme of the kitchen water making system, a water suction pump is arranged between the water outlet of the hot liner and the hot water inlet or between the water outlet of the hot liner and the water outlet end.

In the above preferable technical scheme of the kitchen water making system, the filtering unit comprises a front filter element, a booster pump, a reverse osmosis filter element and a rear filter element which are sequentially communicated along the water inlet direction, wherein the water inlet end is a water inlet of the front filter element, and the water outlet end is a water outlet of the rear filter element.

In the preferable technical scheme of the kitchen water making system, the front filter element and the rear filter element are constructed into an integrated composite structure.

In the preferable technical scheme of the kitchen water making system, a first electromagnetic valve is arranged between the water purifying end and the water outlet end of the filtering unit, and a second electromagnetic valve is arranged between the water purifying end and the cold water inlet of the filtering unit; or a two-in/two-out valve is arranged between the cold water inlet and the water outlet and the water purifying end of the filtering unit, the inlet of the two-in/two-out valve is communicated with the water purifying end of the filtering unit, and the two outlets of the two-in/two-out valve are respectively communicated with the cold water inlet and the water outlet.

In the preferable technical scheme of the kitchen water making system, the booster pump is a double-head pump.

In a second aspect, the utility model provides a kitchen water dispenser comprising the kitchen water making system.

As will be appreciated by those skilled in the art, the under-kitchen water making system of the present utility model comprises a filter unit, a heat exchanger, and a heat bladder; the water inlet end of the filtering unit is connected with a water source, the water purifying end of the filtering unit is communicated with the water outlet end, the heat exchanger comprises a hot water inlet, a warm water outlet, a cold water inlet and a cold water outlet, the cold water inlet is communicated with the water purifying end of the filtering unit, the warm water outlet is communicated with the water outlet end, the hot liner comprises a water inlet and a water outlet, the water inlet of the hot liner is communicated with the cold water outlet, and the water outlet of the hot liner is communicated with the hot water inlet or the water outlet of the hot liner is respectively communicated with the hot water inlet and the water outlet end. Through the arrangement, pure water filtered by the filtering unit enters the hot liner through the cold water flow passage between the cold water inlet and the cold water outlet of the heat exchanger and is heated to a boiled water state, boiled water enters warm water formed by cooling the heat exchange flow passage between the hot water inlet and the warm water outlet of the heat exchanger through the water outlet of the hot liner, the warm water and the boiled water flow direction of the hot liner are mixed and temperature-regulated to form water outlets with different temperatures, and therefore the warm water at the water outlets is guaranteed to be heated and disinfected, and the water outlet quality of the kitchen water making system is improved.

Further, the water level probe comprises a first water level probe and a second water level probe which are positioned at the top of the heat container, and the length of the first water level probe is greater than that of the second water level probe. Through such setting, according to the different length of every water level probe, the water level height state in the heat courage of being convenient for detects.

Further, the heat liner also comprises an exhaust port, and the exhaust port is communicated with the water outlet end. Through the arrangement, high-pressure steam in the heat liner can be discharged through the water outlet end by means of the exhaust port, and the use safety of the heat liner is improved.

Further, the booster pump is a double-head pump. By the arrangement, the water purifying and producing efficiency of the filtering unit is improved.

In addition, the kitchen water dispenser further provided by the utility model based on the technical scheme adopts the kitchen water making system, so that the kitchen water dispenser has the technical effects of the kitchen water making system, and compared with the existing kitchen water dispenser, the kitchen water dispenser has better water outlet quality and improves user experience.

Drawings

Preferred embodiments of the present utility model are described below with reference to the accompanying drawings, in which:

FIG. 1 is a schematic view of a waterway structure of a first embodiment of the under-kitchen water making system of the present utility model;

fig. 2 is a schematic view of a waterway structure of a second embodiment of the under-kitchen water making system of the present utility model.

List of reference numerals:

1. a thermal liner; 11. a housing; 12. a heating body; 131. a first water level probe; 132. a second water level probe; 133. a third water level probe; 14. an exhaust port; 15. a water inlet; 2. a heat exchanger; 21. a cold water inlet; 22. a cold water outlet; 23. a hot water inlet; 24. a warm water outlet; 3. a water pump; 4. a water tap; 51. a reverse osmosis filter element; 52. a front-mounted rear-mounted composite filter element; 521. a front water inlet; 522. a front water outlet; 523. a rear water inlet; 524. a rear water outlet; 6. a booster pump; 71. a water inlet electromagnetic valve; 72. a waste water electromagnetic valve; 73. a second electromagnetic valve; 74. a first electromagnetic valve; 75. a first inlet and second outlet valve; 8. and (5) a filter screen.

Detailed Description

Preferred embodiments of the present utility model are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present utility model, and are not intended to limit the scope of the present utility model.

It should be noted that, in the description of the present utility model, terms such as "upper," "lower," "inner," "outer," "top," "bottom," and the like indicate directional or positional relationships, and are based on the directional or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model.

Furthermore, it should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; the two components can be mechanically connected, can be directly connected or can be indirectly connected through an intermediate medium, and can be communicated with each other. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Based on the background technology, the problem of poor water quality caused by mixing pure water with boiled water in the existing kitchen water dispenser is solved. The utility model provides a kitchen water making system, in particular to a kitchen water making system which comprises a water outlet end, a filtering unit, a heat exchanger 2 and a heat liner 1 as shown in fig. 1 and 2. The water inlet end of the filtering unit is connected with a water source, the water purifying end of the filtering unit is communicated with the water outlet end, the heat exchanger 2 comprises a hot water inlet 23, a warm water outlet 24, a cold water inlet 21 and a cold water outlet 22, the cold water inlet 21 is communicated with the water purifying end of the filtering unit, and the warm water outlet 24 is communicated with the water outlet end; the heat liner 1 comprises a water inlet 15 and a water outlet, the water inlet 15 of the heat liner 1 is communicated with a cold water outlet 22, the water outlet of the heat liner 1 is communicated with a hot water inlet 23 or the water outlet of the heat liner 1 is respectively communicated with the hot water inlet 23 and a water outlet end.

When water of a water source is purified and filtered by the filtering unit to form pure water, the pure water enters the hot liner 1 after passing through the heat exchanger 2 and is heated to a boiled water state, the boiled water enters the heat exchanger 2 after passing through the water outlet of the hot liner 1 to exchange heat and cool to form warm water to flow to the water outlet end, or the warm water and the boiled water flow to the water outlet end, so that the water outlet quality of the warm water at the water outlet end is ensured, and the water outlet quality of a kitchen water making system is improved.

The following describes the kitchen water making system of the present utility model in detail in connection with two specific examples.

Example 1

As shown in fig. 1, the kitchen water making system according to the embodiment of the utility model includes a water outlet faucet 4 (i.e., a water outlet end), a filtering unit, a heat exchanger 2, and a heat container 1. The heat exchanger 2 comprises a hot water inlet 23, a warm water outlet 24, a cold water inlet 21 and a cold water outlet 22, wherein the cold water inlet 21 and the cold water outlet 22 are respectively communicated with a cold water flow passage in the heat exchanger 2, and the hot water inlet 23 and the warm water outlet 24 are respectively communicated with a hot water flow passage in the heat exchanger 2. The hot water in the hot water flow passage exchanges heat with the cold water in the cold water flow passage to form warm water, and the warm water flows from the warm water outlet 24 of the heat exchanger 2 to the faucet 4.

With continued reference to fig. 1, the heat bladder 1 of the present embodiment includes a housing 11, a water inlet 15, a water outlet (not shown), an air outlet 14, and a heating body 12. Wherein, the water inlet 15 and the air outlet 14 of the heat liner 1 are formed at the top of the shell 11, the water outlet of the heat liner 1 is formed at the bottom of the shell 11, and the heating body 12 is positioned in the cavity of the shell 11. The exhaust port 14 is communicated with the water tap 4, the water inlet 15 of the heat container 1 is communicated with the cold water outlet 22 of the heat exchanger 2, the water outlet of the heat container 1 is respectively communicated with the hot water inlet 23 of the heat exchanger 2 and the water tap 4, the water outlet of the heat container 1 is provided with the water suction pump 3, the inlet of the water suction pump 3 is communicated with the water outlet of the heat container 1, and the hot water inlet 23 of the heat exchanger 2 and the water tap 4 are both communicated with the outlet of the water suction pump 3.

The water pump may be disposed on the pipeline between the water outlet of the heat container 1 and the hot water inlet 23 of the heat exchanger 2, or on the pipeline between the water outlet of the heat container 1 and the faucet 4. Of course, the manner of providing one suction pump 3 in the above embodiment is preferable to save manufacturing costs.

With continued reference to fig. 1, the filter unit according to the embodiment of the present utility model includes a pre-filter (using PP cotton filter), a booster pump 6, a reverse osmosis filter 51, and a post-filter (using carbon filter) that are sequentially connected in the water inlet direction. Wherein the pre-filter cartridge and the post-filter cartridge are constructed as an integral composite structure, i.e., a pre-post-composite filter cartridge 52. The front and rear composite filter element 52 includes a front water inlet 521, a front water outlet 522, a rear water inlet 523, and a rear water outlet 524. Along the water inlet direction, a filter screen 8 and a water inlet electromagnetic valve 71 are sequentially arranged between a water source and a front water inlet 521 of the front and rear composite filter element 52. The front water outlet 522 of the front rear compound filter element 52 is communicated with the inlet of the reverse osmosis filter element 51, the pure water outlet of the reverse osmosis filter element 51 is communicated with the inlet of the booster pump 6, the waste water discharge pipeline of the reverse osmosis filter element 51 is provided with a waste water electromagnetic valve 72, the outlet of the booster pump 6 is communicated with the rear water inlet 523 of the front rear compound filter element 52, and the rear water outlet 524 of the front rear compound filter element 52 is communicated with the cold water inlet 21 of the heat exchanger 2.

It should be noted that, according to practical application, a person skilled in the art may also adopt a mode of setting the front filter element and the rear filter element separately, and of course, in contrast, the filter element with the integrated composite structure is convenient for assembling the pipeline and reduces the volume of the kitchen water making system occupied by the filter element.

With continued reference to fig. 1, a first solenoid valve 74 is disposed between the rear water outlet 524 of the front rear composite filter element 52 and the faucet 4, and a second solenoid valve 73 is disposed between the rear water outlet 524 of the front rear composite filter element 52 and the cold water inlet 21 of the heat exchanger 2.

It should be noted that, according to practical applications, a person skilled in the art may set the water inlet solenoid valve 71, the first solenoid valve 74 and the second solenoid valve 73 as an integral structure, so as to reduce the number of installation components of the waterway structure and improve the assembly integration level of the waterway structure.

When water of a water source is filtered out of pure water through the filtering unit, one path of pure water is directly conveyed to the faucet 4 through the first electromagnetic valve 74, the other path of pure water enters a cold water flow passage of the heat exchanger 2 through the second electromagnetic valve 73 and then enters the hot liner 1 to be heated to a boiled water state, the boiled water is cooled through a hot water flow passage of the heat exchanger 2 to form warm water, the faucet 4 with adjustable flow rate is selected at the water outlet end, and the warm water and the boiled water are conveyed to the faucet 4 to be subjected to temperature adjustment, namely warm boiled water with different temperatures and capable of being directly drunk is adjusted.

Example two

As shown in fig. 2, the kitchen water making system according to the embodiment of the utility model includes a water outlet faucet 4 (i.e., a water outlet end), a filtering unit, a heat exchanger 2, and a heat container 1. Wherein the heat exchanger 2 comprises a hot water inlet 23, a warm water outlet 24, a cold water inlet 21 and a cold water outlet 22, the cold water inlet 21 and the cold water outlet 22 are respectively communicated with a cold water flow passage of the heat exchanger 2, and the hot water inlet 23 and the warm water outlet 24 are respectively communicated with a hot water flow passage of the heat exchanger 2. The hot water in the hot water flow passage exchanges heat with the cold water in the cold water flow passage to form warm water, and the warm water flows from the warm water outlet 24 of the heat exchanger 2 to the faucet 4.

With continued reference to fig. 2, the heat bladder 1 of the present embodiment includes a housing 11, a water inlet 15, a water outlet (not shown), an air outlet 14, and a heating body 12. Wherein, the water inlet 15 and the air outlet 14 of the heat liner 1 are formed at the top of the shell 11, the water outlet is formed at the bottom of the shell 11, and the heating body 12 is positioned in the cavity of the shell 11. Wherein, the exhaust port 14 is communicated with the tap 4, the water inlet 15 of the heat container 1 is communicated with the cold water outlet 22 of the heat exchanger 2, the water outlet of the heat container 1 is communicated with the hot water inlet 23 of the heat exchanger 2, and a water suction pump 3 is arranged between the two, the inlet of the water suction pump 3 is communicated with the water outlet of the heat container 1, and the outlet of the water suction pump 3 is communicated with the hot water inlet 23 of the heat exchanger 2.

With continued reference to fig. 2, the filter unit according to the embodiment of the present utility model includes a pre-filter (using PP cotton filter), a booster pump 6, a reverse osmosis filter 51, and a post-filter (using carbon filter) that are sequentially connected in the water inlet direction. Wherein the pre-filter cartridge and the post-filter cartridge are constructed as an integral composite structure, i.e., a pre-post-composite filter cartridge 52. The front and rear composite filter element 52 includes a front water inlet 521, a front water outlet 522, a rear water inlet 523, and a rear water outlet 524. Along the water inlet direction, a filter screen 8 and a water inlet electromagnetic valve 71 are arranged between the water source and the front water inlet 521 of the front and rear composite filter element 52. The front water outlet 522 of the front rear compound filter element 52 is communicated with the inlet of the reverse osmosis filter element 51, the pure water outlet of the reverse osmosis filter element 51 is communicated with the inlet of the booster pump 6, the waste water discharge pipeline of the reverse osmosis filter element 51 is provided with a waste water electromagnetic valve 72, the outlet of the booster pump 6 is communicated with the rear water inlet 523 of the front rear compound filter element 52, and the rear water outlet 524 of the front rear compound filter element 52 is communicated with the cold water inlet 21 of the heat exchanger 2.

With continued reference to fig. 2, a two-in/two-out valve 75 is disposed between the cold water inlet 21 of the heat exchanger 2 and the tap 4 and the rear water outlet 524 of the front rear composite filter element 52, the inlet of the two-in/two-out valve 75 is communicated with the rear water outlet 524 of the front rear composite filter element 52, and the two outlets of the two-in/two-out valve 75 are respectively communicated with the cold water inlet 21 of the heat exchanger 2 and the tap 4.

When water of the water source is filtered by the filtering unit to obtain pure water, one pure water is directly conveyed to the faucet 4 through one outlet of the one-inlet-two-outlet valve 75, the other pure water enters a cold water flow passage of the heat exchanger 2 through the other outlet of the one-inlet-two-outlet valve 75 and then enters the hot liner 1 to be heated to a boiled water state, and the boiled water is cooled through a hot water flow passage of the heat exchanger 2 to form warm water which is directly conveyed to the faucet 4 to obtain relatively constant-temperature directly drinkable warm boiled water.

Preferably, as shown in fig. 1 and 2, the thermal liner 1 of the present utility model further includes a water level probe. The water level probe comprises a first water level probe 131 and a second water level probe 132 which are positioned at the top of the heat container 1, and the length of the first water level probe 131 is greater than that of the second water level probe 132. That is, the first water level probe 131 detects that the water level in the heat bladder 1 is lower than the second water level probe 132 detects that the water level in the heat bladder 1. Wherein the water level probe further includes a third water level probe 133 having a length between the length of the first water level probe 131 and the length of the second water level probe 132.

When the water level in the heat container 1 is lower than the position of the first water level probe 131, the first electromagnetic valve 74 is opened to supplement water to the heat container 1, so that the water level in the heat container 1 is prevented from being too low to be in a dry-burning state.

When the water level in the heat container 1 is higher than the position of the second water level probe 132, the kitchen water making system stops making water and generates alarm information so as to prevent the risk of bursting due to overfilling of the water in the heat container 1. In addition, when the air pressure in the heat bladder 1 is too high or the water is too full, the pressure of the heat bladder 1 can be relieved through the air outlet 14 to ensure the use safety of the heat bladder 1.

When the water level in the heat container 1 reaches the position of the third water level probe 133, the water quantity in the heat container 1 is kept at a normal level, and the tap can be opened for normal water taking operation.

Preferably, as shown in fig. 1 and 2, the booster pump 6 of the present utility model is a double-head pump. The double-head pump comprises two groups of independent inlets and outlets, wherein each group of inlets of the double-head pump is communicated with the pure water port of the reverse osmosis filter element 51, and each group of outlets of the double-head pump is communicated with the rear water inlet 523 of the front rear composite filter element 52, namely, the two groups of independent inlets and outlets are arranged between the pure water port of the reverse osmosis filter element 51 and the rear water inlet 523 of the front rear composite filter element 52 in a parallel connection mode. By such arrangement, the double-headed pump can increase the water production efficiency of the reverse osmosis cartridge 51, and increase the pure water yield of the reverse osmosis cartridge 51.

It should be noted that, the two independent inlet and outlet sets of the double-head pump are not limited to the parallel connection manner, and those skilled in the art can also arrange the two independent inlet and outlet sets between the pure water inlet of the reverse osmosis filter element 51 and the rear water inlet 523 of the front rear composite filter element 52 in a serial manner according to practical applications, and such adjustment and change do not deviate from the principle and scope of the present utility model and should be limited to the protection scope of the present utility model.

It should be noted that, the specific structure of the heat exchanger 2 in the first embodiment and the second embodiment is not limited in any way, as long as the heat exchanger 2 can exchange heat and cool the hot water flowing through the heat exchanger 2, the heat exchanger 2 may be a spiral tube type heat exchange structure, or the heat exchanger 2 may also be a plate type stacked heat exchange structure, etc., and the specific structure of the heat exchanger 2 may be flexibly adjusted and changed without departing from the basic principle and scope of the present utility model, and should be limited in the protection scope of the present utility model.

In addition, the present utility model does not limit the specific structure of the heating body 12 of the heat container 1 in the first and second embodiments, as long as the heating body 12 can heat and boil the water in the heat container 1, and a person skilled in the art can set the structure and position of the heating body 12 according to the actual needs. For example, the heating body 12 may be provided in a tubular structure having an electric heating wire, or the heating body 12 may be provided as an electromagnetic heating device at the bottom of the heat container 1, etc., and such flexible adjustment and modification of the heating body 12 should not deviate from the basic principle and scope of the present utility model, and should be limited to the protection scope of the present utility model.

Finally, the utility model also provides a kitchen water drinking device which comprises the kitchen water making system.

Thus far, the technical solution of the present utility model has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present utility model is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present utility model, and such modifications and substitutions will fall within the scope of the present utility model.

Claims (10)

1. A under-kitchen water making system having a water outlet end, the under-kitchen water making system comprising:

the water inlet end of the filtering unit is connected with a water source, and the water purifying end of the filtering unit is communicated with the water outlet end;

a heat exchanger comprising a hot water inlet, a warm water outlet, a cold water inlet and a cold water outlet, wherein the cold water inlet is communicated with the water purifying end of the filtering unit, and the warm water outlet is communicated with the water outlet end;

the hot liner comprises a water inlet and a water outlet, the water inlet of the hot liner is communicated with the cold water outlet, and the water outlet of the hot liner is communicated with the hot water inlet or the water outlet of the hot liner is respectively communicated with the hot water inlet and the water outlet end.

2. The under-kitchen water making system of claim 1, wherein the thermal bladder further comprises a water level probe.

3. The under-kitchen water making system according to claim 2, wherein the water level probe comprises a first water level probe and a second water level probe positioned on top of the heat bladder, the first water level probe having a length greater than a length of the second water level probe.

4. The under-kitchen water making system of claim 1, wherein the thermal bladder further comprises an exhaust port in communication with the water outlet end.

5. A kitchen under water making system according to claim 1, wherein a water pump is provided between the water outlet of the heat bladder and the hot water inlet or between the water outlet of the heat bladder and the water outlet end.

6. The under-kitchen water making system according to claim 1, wherein the filtering unit comprises a pre-filter element, a booster pump, a reverse osmosis filter element and a post-filter element which are sequentially communicated along the water inlet direction, the water inlet end is a water inlet of the pre-filter element, and the water outlet end is a water outlet of the post-filter element.

7. The under-kitchen water making system according to claim 6, wherein said pre-filter and said post-filter are constructed as a unitary composite structure.

8. The under-kitchen water making system according to claim 1, wherein a first electromagnetic valve is arranged between the water purifying end and the water outlet end of the filtering unit, and a second electromagnetic valve is arranged between the water purifying end and the cold water inlet of the filtering unit; or a two-in/two-out valve is arranged between the cold water inlet and the water outlet and the water purifying end of the filtering unit, the inlet of the two-in/two-out valve is communicated with the water purifying end of the filtering unit, and the two outlets of the two-in/two-out valve are respectively communicated with the cold water inlet and the water outlet.

9. The under-kitchen water making system according to claim 6, wherein the booster pump is a double-head pump.

10. A under-kitchen water dispenser comprising an under-kitchen water making system as claimed in any one of claims 1 to 9.

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