CN218846434U - Hot water outlet system and water purifier with same - Google Patents

Abstract

The utility model provides a hot water goes out water system and has purifier of this hot water system of going out. The hot water outlet system comprises a heat exchanger, a water storage device, a heater and a flow control assembly. In the heat exchanger, a cold water channel is connected between a cold water inlet and a cold water outlet, a hot water channel is connected between a hot water inlet and a hot water outlet, and the cold water channel is thermally coupled with the hot water channel; the water storage device comprises a water storage port and a water outlet, the water storage port is connected with the cold water outlet, and the water outlet is connected with the hot water inlet; the heater is arranged at the water outlet end, the water outlet is connected with the heater through a first pipeline, and the hot water outlet is connected with the heater through a second pipeline; and the flow control assembly comprises a flow control valve arranged on the second pipeline. The hot water outlet system with the arrangement can not only provide large-flow hot water, but also provide water with any temperature for users.

Description

Hot water outlet system and water purifier with same

Technical Field

The utility model relates to a technical field of aqueous cleaning specifically, relates to a hot water goes out water system and has purifier of this hot water play water system.

Background

With the progress of science and technology and society, the requirements of people on the quality and the temperature of domestic water are higher and higher, and more people can obtain water with proper temperature after long-term waiting after not meeting the requirements of boiling water. It is desirable to obtain water at a desired temperature without excessive waiting times.

The existing instant heating type water dispenser can obtain water with preset temperature through heating according to the requirements of users. However, the power of the instant heating equipment is very high, and the heating efficiency is not high, so that the existing instant heating type water dispenser is often low in water outlet flow and difficult to meet the use requirements of some users, and the water dispenser with the water storage tank has the fixed water storage temperature, so that the user cannot freely select the water taking temperature, and the use experience of the user is influenced.

SUMMERY OF THE UTILITY MODEL

In order to at least partially solve the problems occurring in the prior art, according to one aspect of the present invention, a hot water outlet system is provided. The hot water outlet system is provided with a water inlet end and a water outlet end, and also comprises a heat exchanger, a water storage device, a heater and a flow control assembly. The heat exchanger is provided with a cold water inlet, a cold water outlet, a hot water inlet and a hot water outlet, wherein the cold water inlet is connected with the water inlet end; the water storage device comprises a water storage port and a water outlet, the water storage port is connected with the cold water outlet, and the water outlet is connected with the hot water inlet; the heater is arranged at the water outlet end, the water outlet is connected with the heater through a first pipeline, and the hot water outlet is connected with the heater through a second pipeline; the flow control assembly includes a flow control valve disposed on the second conduit. Have the embodiment of the utility model provides a hot water outlet system, the user can receive the water of arbitrary temperature. On one hand, the water storage device increases the initial temperature of the water flow to be heated of the heater, so the heating speed of the heater can be increased. Because the water flow to be heated has the initial temperature higher than the normal temperature, under the condition that the power of the heater is unchanged, the water outlet speed can be increased, the water receiving time of a user is shortened, and under the condition that the water outlet speed is kept unchanged, the heating power of the heater can be reduced, so that the heater can be suitable for circuits in a user household, and the size of the heater is reduced. On the other hand, through setting up accuse and flowing subassembly and heat exchanger, can make the user access the water that is less than the interior temperature of water storage device, increased the selectivity of the temperature that the user can receive, improved user's use experience.

Illustratively, the flow control assembly further includes a first check valve disposed in the first conduit, the first check valve having a first cracking pressure. The arrangement of the first one-way valve can prevent water flow from flowing backwards in the first pipeline, the water outlet stability of the whole device is improved, the flow proportioning accuracy of the first pipeline and the second pipeline can be improved by matching with the flow control valve, and the water temperature accuracy of water outlet at the water outlet end is further improved.

Illustratively, the hot water outlet system further comprises a controller electrically connected to the flow control valve and the heater, the water storage device has a preset heating temperature, the controller is used for controlling the flow control valve to be closed and the heater to be opened when the water taking temperature of a user is higher than the preset heating temperature, and controlling the flow control valve to be opened when the water taking temperature is lower than the preset heating temperature. The controller can calculate and obtain the overflow flow ratio of the first pipeline and the second pipeline according to the water taking temperature of a user. The flow rate of the water flow discharged from the water outlet end is equal to the sum of the flow rates of the water flows in the first pipeline and the second pipeline. The controller can change the mixing ratio of the water flows in the first pipeline and the second pipeline by adjusting the flow rate of the water flow in the second pipeline, so as to obtain the final water flow with the water taking temperature required by a user. The flow value of first pipeline and second pipeline can change through flow control valve, the controller only need to the second on the pipeline flow control valve adjust can, compare to a plurality of pipelines on the flow adjust the volume of calculating of controller little, system reaction rate is faster, temperature regulation is also more sensitive, the temperature of the final rivers that obtain moreover is also more accurate.

Exemplarily, the hot water outlet system further comprises a third pipeline, a water inlet of the third pipeline is connected with a water outlet of the first pipeline and a water outlet of the second pipeline, a water outlet of the third pipeline is connected with the heater, the flow control assembly further comprises a flow control pump, and the flow control pump is arranged on the third pipeline. The flow control pump is used for accurately controlling the water flow passing through the flow control pump, and the water flow with higher temperature accuracy can be obtained by matching with the heating of the heater. The third pipeline is arranged, so that the water flow flowing out of the first pipeline and the water flow flowing out of the second pipeline are mixed in the third pipeline, and the water taking temperature expected by a user is achieved.

Exemplarily, flow detectors are arranged on a pipeline between the cold water inlet and the water inlet end, a pipeline between the cold water channel, the water storage port and the cold water outlet, and/or the first pipeline, the hot water outlet system further comprises a controller, the controller is electrically connected with the flow detectors and the heater, and the controller is used for controlling the heater according to flow information detected by the flow detectors. The flow detector can prevent the heater from being dry-burned due to no water flow or insufficient water flow flowing through the heater, and the controller can control the working power of the heater according to the flow information detected by the flow detector, so that the control on the outlet water temperature can be more accurate.

Illustratively, the flow detector is disposed upstream of the cold water inlet. The flow detector is arranged on the upstream of the cold water inlet, so that the flow detector can be prevented from detecting hot water, the flow detector is protected, the stability and the service life of the flow detector are prolonged, and the stability and the safety of the whole device are improved.

Illustratively, the hot water outlet system comprises a first temperature sensor and a controller, wherein the first temperature sensor is arranged at the water outlet, the controller is electrically connected to the first temperature sensor and the flow control assembly, and the controller is used for adjusting the flow of the flow control assembly according to first temperature information detected by the first temperature sensor. Therefore, the accuracy and the precision of the outlet water temperature can be improved.

Illustratively, the heating tap comprises a second temperature sensor electrically connected with the controller, the controller is used for further adjusting the flow of the flow control assembly according to second temperature information detected by the second temperature sensor, and/or the controller is also electrically connected with the heater, and the controller is used for adjusting the heating power of the heater according to the second temperature information, wherein the second temperature sensor comprises an inlet water temperature sensor arranged at the upstream of the heater, and/or an outlet water temperature sensor arranged at the downstream of the heater. Such hot water goes out water system has a plurality of temperature sensor in order to acquire the temperature information of different positions to adjust out water temperature based on these temperature information, make out water temperature more accurate, user experience is good.

Illustratively, the water storage device is a pressure tank. When the water storage device is a pressure tank, a water pump does not need to be additionally arranged to discharge water in the water storage device to the water outlet, so that the whole device is simpler in structure and easy to realize.

Illustratively, the hot water system includes a heating faucet having a heater. The heater is arranged in the heating faucet, so that the integration level of the whole structure can be improved.

According to another aspect of the utility model, still provide a purifier that has this hot water outlet system. The water purifier comprises a water purifying system and any one of the hot water outlet systems, and a water purifying port of the water purifying system is connected with a water inlet end. The end of intaking with hot water effluent system is connected with water purification system's water purification mouth, and the user can connect the straight drink water of getting different temperatures, satisfies more water demands of user, and user experience is better.

Exemplarily, the hot water outlet system further comprises a third pipeline, a water inlet of the third pipeline is connected with the water outlet of the first pipeline and the water outlet of the second pipeline, the water outlet of the third pipeline is connected with the water inlet of the heating faucet, and the flow control assembly further comprises a flow control pump, and the flow control pump is arranged on the third pipeline. The hot water outlet system is arranged in such a way, so that the water outlet flow can be controlled, and the water outlet temperature is more accurate.

The water purifying machine further comprises a water return pipeline arranged between the water inlet of the third pipeline and the raw water inlet of the water purifying system, and a second one-way valve is arranged on the water return pipeline and has a second opening pressure. The water purification system generally can come the inside behavior of controller through setting up high tension switchgear, through setting up the return water pipeline, can avoid accuse to flow the backpressure that the pump upper reaches produced and use water purification system's high tension switchgear on, improved water purifier job stabilization nature. In addition, the second one-way valve is arranged on the water return pipeline, so that raw water can be prevented from flowing to a water outlet end directly through the water return pipeline without passing through a water purification system.

Illustratively, the flow control assembly further includes a first check valve disposed in the first conduit, the first check valve having a first cracking pressure, the first cracking pressure of the first check valve being less than the second cracking pressure of the second check valve. Set up like this, can make the return water pipeline have the function of backward flow, stability when having improved the purifier and using.

A series of concepts in a simplified form are introduced in the disclosure, which will be described in further detail in the detailed description section. The summary of the invention is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

The advantages and features of the present invention are described in detail below with reference to the accompanying drawings.

Drawings

The following drawings of the present invention are used herein as part of the present invention for understanding the present invention. There are shown in the drawings, embodiments and descriptions thereof, which are used to explain the principles of the invention. In the drawings, there is shown in the drawings,

fig. 1 is a schematic water path diagram of a hot water outlet system according to an exemplary embodiment of the present invention; and

fig. 2 is a schematic water path diagram of a hot water outlet system according to another exemplary embodiment of the present invention.

Wherein the figures include the following reference numerals:

200. heating the faucet; 210. a heater; 300. a heat exchanger; 310. a cold water inlet; 320. a cold water outlet; 330. a hot water inlet; 340. a hot water outlet; 400. a water storage device; 410. a water storage port; 420. a water outlet; 510. a flow control valve; 520. a first check valve; 540. a flow control pump; 500. a flow rate detector; 600. a first temperature sensor; 700. an inlet water temperature sensor; 800. an effluent temperature sensor; 101. a first pipeline; 102. a second pipeline; 103. a third pipeline; 104. a water return pipeline; 20. a water purification system; 201. a water purifying port; 202. a raw water port; 203. a second one-way valve.

Detailed Description

In the following description, numerous details are provided to provide a thorough understanding of the present invention. One skilled in the art, however, will understand that the following description illustrates only a preferred embodiment of the invention and that the invention may be practiced without one or more of these details. In addition, some technical features that are well known in the art are not described in detail in order to avoid obscuring the present invention.

In accordance with one aspect of the present invention, a hot water outlet system is provided, as shown in fig. 1-2. The hot water outlet system may have a water inlet end and a water outlet end. The water inlet end can be used for connecting municipal water pipes or water tanks and the like. The water outlet end can be used for users to take water. The hot water outlet system may further include a heat exchanger 300, a water storage 400, a heater 210, and a flow control assembly.

The heat exchanger 300 may have a cold water inlet 310, a cold water outlet 320, a hot water inlet 330, and a hot water outlet 340. In the heat exchanger 300, a cold water passage may be connected between the cold water inlet 310 and the cold water outlet 320. A hot water passage may be connected between the hot water inlet 330 and the hot water outlet 340. The cold water channel and the hot water channel may be thermally coupled. By thermally coupled, it is meant that heat may be exchanged between the cold water path and the hot water path. Wherein, the cold water channel and the hot water channel are not communicated with each other. The cold water inlet 310, the cold water outlet 320, the hot water inlet 330, and the hot water outlet 340 may be disposed at any positions on the heat exchanger 300. A cold water inlet 310 may be connected to the water inlet end. The heat exchanger 300 may comprise any heat exchanger, either existing or that may occur in the future, such as a tube heat exchanger or a plate heat exchanger. In the tubular heat exchanger, one of the cold water passage and the hot water passage may be a water storage container, and the other may be a pipe for a liquid soaked in the water storage container. The liquid in the pipeline and the liquid in the water storage container have temperature difference, so that heat exchange can be carried out between the liquid in the pipeline and the liquid in the water storage container. In the plate heat exchanger, the cold water channel and the hot water channel can be formed by combining a plurality of fins provided with grooves, and the plurality of fins are attached to form the cold water channel and the hot water channel which are not communicated with each other. The fins may be made of a material that is readily heat conductive so that heat exchange may occur between the liquid in the cold water passageway and the liquid in the hot water passageway. The heat exchanger 300 is well known to those skilled in the art and will not be described in detail.

The water storage means 400 may include a water storage port 410 and a water discharge port 420. The water flow may be accumulated into the water storage means 400 through the water accumulation port 410 and discharged through the water discharge port 420. The water storage port 410 may be connected to the cold water outlet port 320, and the water discharge port 420 may be connected to the hot water inlet port 330. The water storage means 400 may be a hot tank having a heating and/or heat-preserving function. The user can set the temperature of the stored water in the water storage device 400. The water storage device 400 is well known to those skilled in the art and will not be described in detail.

The heater 210 may be disposed at the water outlet. The heater 210 functions to instantly heat water flowing therethrough. The heater 210 may be an electromagnetic heater, a resistance heater, or other various types of heaters, and is not particularly limited. Preferably, the hot water system may further include a heating tap having a heater 210. The heating faucet 200 may form a water outlet end. A user may access water through the heating faucet 200. Thus, integrating the heater 210 within the heating faucet 200 may improve the integration of the overall structure.

In the hot water outlet system, a first pipeline 101 and a second pipeline 102 may also be provided. The drain port 420 may be connected to the heater 210 through the first pipe 101. The hot water outlet 340 may be connected to the heater 210 through the second pipe 102.

The flow control assembly is a device capable of controlling the flow in the pipeline where the flow control assembly is located. In the embodiment shown in FIG. 1, the flow control assembly may include a flow control valve 510 disposed on the second conduit 102. The flow control valve 510 may control the flow rate of the second line 102 by the magnitude of the opening of the spool thereof. Generally, the water inlet flow of the water inlet end is larger than the water outlet flow of the water outlet end, so that the hot water outlet system can be always kept in a full water state. For convenience of description, the temperature of the water in the water storage device is called as a preset heating temperature. The user can set the preset heating temperature. It will be appreciated that when the flow control valve 510 on the second pipe 102 is closed, the water in the water storage device 400 will be able to flow entirely through the first pipe 101 to the water outlet, and when the flow control valve 510 on the second pipe 102 is opened, the water in the water storage device 400 will be able to be distributed in the first pipe 101 and the second pipe 102. The flow rate of the water in the first and second pipes 101 and 102 may be distributed following the opening degree of the flow control valve 510. Wherein the flow rate of the water in the second pipeline 102 may be proportional to the opening degree of the flow control valve 510. Since the water flowing out of the second pipe 102 is discharged from the water discharge port 420 and enters the heat exchanger 300 to exchange heat with the unheated cold water, the water flowing out of the second pipe 102 has a lower temperature than the water flowing out of the first pipe 101.

If the user needs to take in water higher than the preset heating temperature, the flow control valve 510 on the second pipeline 102 may be closed, and the water discharged from the water outlet may be heated again by turning on the heater 210 to reach a higher water temperature. If the user needs to take in water below the preset heating temperature, the flow control valve 510 may be opened to mix the water flows in the first pipeline 101 and the second pipeline 102 to generate water below the preset heating temperature. Of course, it is understood that the temperature of the water after mixing in the first and second lines 101 and 102 may be adjusted by the opening degree of the flow control valve 510.

Therefore, with the hot water outlet system provided by the embodiment of the utility model, the user can receive water with any temperature. On one hand, the water storage device 400 increases the initial temperature of the water flow to be heated by the heater 210, so the heating speed of the heater 210 can be increased. Since the water flow to be heated has an initial temperature higher than the normal temperature, the water discharge speed can be increased and the water receiving time of the user can be shortened under the condition that the power of the heater 210 is not changed, and the heating power of the heater 210 can be reduced under the condition that the water discharge speed is not changed, so that the heater 210 can be suitable for a circuit in the household of the user and the size of the heater 210 can be reduced. On the other hand, by arranging the flow control assembly and the heat exchanger 300, a user can access water with the temperature lower than the water temperature in the water storage device 400, the selectivity of the water temperature which can be accessed by the user is increased, and the use experience of the user is improved.

In an embodiment not shown, the flow control assembly may further include flow control valves respectively disposed on the first pipeline 101 and the second pipeline 102, and the flow of water in the first pipeline 101 and the second pipeline 102 may be adjusted by respectively controlling the two flow control valves. Of course, a preferred embodiment will be described in detail below.

For ease of understanding, the hot water outlet system of the heating faucet 200 with the heater 210 will be described below.

Illustratively, the flow control assembly may further include a first check valve 520 disposed in the first conduit 101. The first check valve 520 may have a first cracking pressure. When the water pressure in the first pipe 101 reaches the first cracking pressure, the first check valve 520 is opened, and water flows from the drain port 420 to the heating faucet 200. The arrangement of the first check valve 520 can prevent water flow in the first pipeline 101 from flowing backwards, so that the water outlet stability of the whole device is improved, and the first check valve can be matched with the flow control valve 510 to improve the flow proportioning accuracy of the first pipeline 101 and the second pipeline 102, so that the water temperature accuracy of water outlet at the water outlet end is improved.

Illustratively, the hot water outlet system may further include a controller, which may be electrically connected to the flow control valve 510 and the heater 210. The water storage apparatus 400 may have a preset heating temperature, the controller may be configured to control the flow control valve 510 to be closed and the heater 210 to be opened when a water intake temperature of a user is higher than the preset heating temperature, and to control the flow control valve 510 to be opened when the water intake temperature is lower than the preset heating temperature. In some embodiments, the preset heating temperature may be 60 degrees, 70 degrees, or other various temperatures higher than the normal temperature. The water storage device 400 can store a certain amount of water and can continuously heat the water therein to make the water temperature reach a preset heating temperature. When the water intake temperature of the user is higher than the preset heating temperature, the controller may control the flow control valve 510 to close, so that no water flows through the second pipeline 102, and the controller may control the heater 210 to open, so as to heat the water flowing out of the first pipeline 101 to reach the water intake temperature of the user. When the water intake temperature of the user is lower than the preset heating temperature, the controller can control the flow control valve 510 to open, at this time, the water flows through the second pipeline 102, and the controller can control the heater 210 to close, the water flow flowing out of the first pipeline 101 is mixed with the water flow flowing out of the second pipeline 102, and the end user can obtain the water lower than the preset heating temperature. Here, the controller can calculate and obtain the ratio of the flow rates of the first pipeline 101 and the second pipeline 102 according to the water intake temperature of the user. In the embodiment shown in fig. 1, the flow rate of the water stream discharged from the water outlet end is equal to the sum of the flow rates of the water streams in the first pipe 101 and the second pipe 102. The controller can change the mixing ratio of the water flows in the first pipeline 101 and the second pipeline 102 by adjusting the flow rate of the water flow in the second pipeline 102, so as to obtain the final water flow with the water taking temperature required by the user.

In this embodiment, the flow values of the first pipeline 101 and the second pipeline 102 can be changed through the flow control valve 510, and the controller only needs to adjust the flow control valve 510 on the second pipeline 102, so that compared with the adjustment of the flow on a plurality of pipelines, the calculated amount of the controller is small, the reaction speed of the system is faster, the temperature adjustment is also more sensitive, and the obtained water temperature of the final water flow is more accurate.

It should be noted that the controller may be built by using electronic components such as a timer, a comparator, a register, and a digital logic circuit, or may be implemented by using processor chips such as a single chip microcomputer, a microprocessor, a Programmable Logic Controller (PLC), a Digital Signal Processor (DSP), a Field Programmable Gate Array (FPGA), a Programmable Logic Array (PLA), and an Application Specific Integrated Circuit (ASIC), and peripheral circuits thereof.

Illustratively, the hot water outlet system may further include a third pipe 103. The inlet of the third pipe 103 may connect the outlet of the first pipe 101 and the outlet of the second pipe 102. The outlet of the third pipe 103 can be connected to a heating tap. Flow control assembly may also include a flow control pump 540. A flow control pump 540 may be provided on the third line 103. In embodiments where the user draws water at a temperature above the predetermined heating temperature, the flow control pump 540 functions to precisely control the flow of water therethrough, and, in conjunction with the heating of the heater 210, to achieve a more precise flow of water at a higher temperature. In the embodiment where the water intake temperature of the user is lower than the preset heating temperature, the third pipeline 103 is configured such that the water flowing out from the first pipeline 101 and the water flowing out from the second pipeline 102 are mixed in the third pipeline 103 to reach the water intake temperature desired by the user. The flow control pump 540 may stabilize the flow rate of the effluent, thereby improving the user experience.

Illustratively, the flow detector 500 may be disposed on the pipe between the cold water inlet 310 and the water inlet end, the cold water passage, the pipe between the water storage port 410 and the cold water outlet 320, and/or the first pipe 101, and in an embodiment having a controller, the controller may electrically connect the flow detector 500 and the heater 210. The flow detector 500 includes, but is not limited to, a flow meter. The controller may be configured to control the heater 210 according to the flow information detected by the flow detector 500. In some embodiments, when the hot water outlet system receives a signal that water flow is generated above a preset temperature, but the flow meter does not generate a signal that water flows through, which may be a water leakage condition in the hot water outlet system, the controller may control the heating faucet 200 to stop operating, so as to prevent the heater from being dried due to no water flow or insufficient water flow through the heater. Of course, it is understood that the controller can also control the operation power of the heater 210 according to the flow information detected by the flow detector 500, so that the control of the outlet water temperature can be more precise.

Illustratively, the flow detector 500 may be disposed upstream of the cold water inlet 310. The water flow downstream of the cold water inlet 310 has a certain temperature, and the hot water has a certain influence on the service life and detection accuracy of the flow detector 500. The flow detector 500 is arranged at the upstream of the cold water inlet 310, so that the flow detector 500 can be protected, the stability and the service life of the flow detector 500 are prolonged, and the stability and the safety of the whole device are improved.

Illustratively, the hot water outlet system may include a first temperature sensor 600, which may be disposed at the drain port 420, and a controller, which may be electrically connected to the first temperature sensor 600 and the flow control assembly. The controller may be configured to adjust the flow rate of the flow control assembly based on the first temperature information detected by the first temperature sensor 600. In some embodiments, the preset heating temperature in the water storage device 400 may vary with the ambient temperature. The temperature of the water received by the user is the same, but the opening degree of the flow control assembly is different when the preset heating temperature is different. The first temperature sensor 600 can detect the temperature of the water flowing out of the water outlet 420, and the controller can send an initial value to the flow control module according to the first temperature information detected by the first temperature sensor 600. The flow control assembly can control the ratio of the flow rates of the first pipeline 101 and the second pipeline 102 according to the initial value. Therefore, when the hot water is discharged from the water outlet end, a user can receive the hot water with the required temperature, and the accuracy and the precision of the water outlet temperature are improved.

Illustratively, the heater 210 may include a second temperature sensor. The second temperature sensor may be electrically connected to the controller. The controller may be configured to further adjust the flow rate of the flow control assembly based on second temperature information detected by the second temperature sensor. The second temperature sensor is closer to the water outlet end, in some embodiments, the water storage device 400 may be far from the water outlet end, and the first pipeline 101 and the second pipeline 102 have a certain length, so that the second temperature sensor closer to the water outlet end can obtain more accurate water flow temperature information near the water outlet end, and the flow rate of the flow control assembly is adjusted based on the temperature information, so that the water outlet temperature of the whole device can be more accurate. Further, the controller may also be electrically connected to the heater 210, and the controller may be configured to adjust the heating power of the heater 210 according to the second temperature information. The second temperature sensor may include an inlet water temperature sensor 700 disposed upstream of the heater 210, and/or an outlet water temperature sensor 800 disposed downstream of the heater 210. Referring to FIG. 2, an embodiment of a hot water outlet system having an incoming water temperature sensor 700 and an outgoing water temperature sensor 800 is provided. The controller can adjust the flow of the flow control assembly according to the temperature information of the inlet water temperature sensor 700, and can also adjust the heating power of the heater 210 according to the temperature information, so that the outlet water temperature of the outlet water end is more accurate; the outlet temperature sensor 800 may detect the outlet temperature of the water end and form a feedback to the controller based on this outlet temperature. For example, when the temperature detected by the leaving water temperature sensor 800 is lower than the user's water intake temperature, the controller may increase the heating power of the heater 210 based on this information to meet the user's water intake temperature demand. Such hot water goes out water system has a plurality of temperature sensor in order to acquire the temperature information of different positions to adjust out water temperature based on these temperature information, make out water temperature more accurate, user experience is good.

For example, the water storage device 400 may be a pressure tank. When the water storage device 400 is a pressure tank, a water pump is not required to be additionally arranged to discharge water in the water storage device 400 to the water outlet 420, so that the whole device is simpler in structure and easy to implement.

According to another aspect of the utility model, a water purifier is provided. The water purification machine may comprise a water purification system 20 and a hot water outlet system as described in any of the above, and the water purification port 201 of the water purification system 20 may be connected to the water inlet end. The end of intaking with hot water effluent system is connected with water purification mouth 201 of water purification system 20, and the user can connect the straight drinking water of getting different temperatures, satisfies more water demands of user, and user experience is better.

Illustratively, the hot water outlet system may further include a third pipeline 103, a water inlet of the third pipeline 103 may be connected to the water outlet of the first pipeline 101 and the water outlet of the second pipeline 102, a water outlet of the third pipeline 103 may be connected to the water inlet of the heater 210, the flow control assembly may further include a flow control pump 540, and the flow control pump 540 may be disposed on the third pipeline 103. The hot water outlet system with the arrangement has the advantages that the water outlet flow can be controlled, and the water outlet temperature is more accurate.

Illustratively, the water purifier may further include a water return line 104 disposed between the water inlet of the third line 103 and the raw water inlet 202 of the water purification system 20, and a second check valve 203 may be disposed on the water return line 104, and the second check valve 203 may have a second opening pressure. The water purification system generally controls the working conditions inside the controller by arranging a high-voltage switch. In the embodiment provided with the flow control pump 540, since the flow control pump 540 may generate a certain back pressure to the upstream water path, the high-voltage switch may be misjudged, so that the water purification system is frequently started and stopped, and the user experience is affected. By arranging the water return pipeline 104, the back pressure generated at the upstream of the flow control pump 540 can be prevented from acting on a high-voltage switch of the water purification system, and the working stability of the water purifier is improved. In addition, the second check valve 203 is disposed on the water return pipeline 104, so that the raw water can be prevented from flowing to the water outlet end through the water return pipeline 104 without passing through the water purification system.

For example, in embodiments where the first one-way valve 520 is disposed on the first line 101, the first cracking pressure of the first one-way valve 520 may be less than the second cracking pressure of the second one-way valve 203. By the arrangement, the water return pipeline 104 has a backflow function, and the stability of the water purifier during use is improved.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front", "rear", "upper", "lower", "left", "right", "horizontal", "vertical", "horizontal" and "top", "bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner" and "outer" refer to the interior and exterior relative to the contours of the components themselves.

For convenience of description, relative terms of regions such as "over 8230; \8230" "," ' over 8230; "\8230;", "' over 8230;", \8230;, "' over 8230" "," "over surface", "over", etc. may be used herein to describe the regional positional relationship of one or more components or features to other components or features as illustrated in the figures. It is to be understood that the relative terms of the regions are intended to encompass not only the orientation of the element as depicted in the figures, but also different orientations in use or operation. For example, if an element in the drawings is turned over in its entirety, the articles "over" or "on" other elements or features will include the articles "under" or "beneath" the other elements or features. Thus, the exemplary terms "at 8230; \8230; 'above" may include both orientations "at 8230; \8230;' above 8230; 'at 8230;' below 8230;" above ". Further, these components or features may also be positioned at various other angles (e.g., rotated 90 degrees or other angles), all of which are intended to be encompassed herein.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, elements, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in other sequences than those illustrated or described herein.

The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many more modifications and variations are possible in light of the teaching of the present invention and are within the scope of the invention as claimed. The scope of the present invention is defined by the appended claims and their equivalents.

Claims (14)

1. A hot water outlet system having a water inlet end and a water outlet end, the hot water outlet system comprising:

the heat exchanger is provided with a cold water inlet, a cold water outlet, a hot water inlet and a hot water outlet, the cold water inlet is connected with the water inlet end, a cold water channel is connected between the cold water inlet and the cold water outlet, a hot water channel is connected between the hot water inlet and the hot water outlet, and the cold water channel is thermally coupled with the hot water channel;

the water storage device comprises a water storage port and a water outlet, the water storage port is connected with the cold water outlet, and the water outlet is connected with the hot water inlet;

the heater is arranged at the water outlet end, the water outlet is connected with the heater through a first pipeline, and the hot water outlet is connected with the heater through a second pipeline; and

a flow control assembly including a flow control valve disposed on the second conduit.

2. The hot water outlet system according to claim 1, wherein the flow control assembly further comprises a first one-way valve disposed in the first conduit, the first one-way valve having a first cracking pressure.

3. The hot water outlet system according to claim 1, further comprising a controller electrically connected to the flow control valve and the heater, the water storage device having a preset heating temperature,

the controller is used for controlling the flow control valve to be closed and the heater to be opened when the water intake temperature of a user is higher than the preset heating temperature, and controlling the flow control valve to be opened when the water intake temperature is lower than the preset heating temperature.

4. A hot water outlet system according to claim 1, further comprising a third pipeline, wherein a water inlet of the third pipeline is connected to a water outlet of the first pipeline and a water outlet of the second pipeline, a water outlet of the third pipeline is connected to the heater, and the flow control assembly further comprises a flow control pump disposed on the third pipeline.

5. The hot water outlet system according to claim 1, wherein a flow detector is disposed on the pipeline between the cold water inlet and the water inlet, the cold water channel, the pipeline between the water storage port and the cold water outlet, and/or the first pipeline, and the hot water outlet system further comprises a controller electrically connected to the flow detector and the heater, the controller being configured to control the heater according to flow information detected by the flow detector.

6. The hot water outlet system according to claim 5, wherein the flow detector is disposed upstream of the cold water inlet.

7. The hot water outlet system according to claim 1, comprising a first temperature sensor disposed at the drain outlet, and a controller electrically connected to the first temperature sensor and the flow control assembly, the controller being configured to adjust a flow rate of the flow control assembly according to first temperature information detected by the first temperature sensor.

8. The hot water outlet system according to claim 7, wherein the heater comprises a second temperature sensor electrically connected to the controller for further adjusting the flow rate of the flow control assembly according to second temperature information detected by the second temperature sensor, and/or the controller is electrically connected to the heater for adjusting the heating power of the heater according to the second temperature information, wherein the controller is configured to adjust the heating power of the heater according to the second temperature information

The second temperature sensor includes: a feed water temperature sensor disposed upstream of the heater, and/or a discharge water temperature sensor disposed downstream of the heater.

9. The hot water outlet system according to claim 1, wherein the water storage device is a pressure tank.

10. The hot water outlet system according to claim 1, comprising a heating tap having the heater.

11. A water purifier, comprising a water purifying system and a hot water outlet system as claimed in any one of claims 1 and 3-10, wherein a water purifying port of the water purifying system is connected with the water inlet end.

12. The water purifying machine according to claim 11, wherein the hot water outlet system further comprises a third pipeline, a water inlet of the third pipeline is connected to the water outlet of the first pipeline and the water outlet of the second pipeline, the water outlet of the third pipeline is connected to the water inlet of the heater, and the flow control assembly further comprises a flow control pump disposed on the third pipeline.

13. The water purifier of claim 12, further comprising a return line disposed between the water inlet of the third line and the raw water inlet of the water purification system, wherein a second one-way valve is disposed on the return line, and wherein the second one-way valve has a second cracking pressure.

14. The water purifier of claim 13, wherein the flow control assembly further comprises a first check valve disposed in the first conduit, the first check valve having a first cracking pressure, the first cracking pressure of the first check valve being less than a second cracking pressure of the second check valve.

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