Water supply device

Abstract

The utility model discloses a water supply device which comprises a heat exchange device, a hot tank, a water outlet pipeline and a waste water discharge device, and the heat exchange device is provided with a water flow channel and a heat exchange medium channel which are isolated from each other; the heat tank is used for containing a heat exchange medium and is connected with a heat exchange power part used for enabling the heat exchange medium to flow through the heat exchange medium channel; the water outlet pipeline communicates with the water flow channel; the wastewater discharge device is connected with the water outlet pipeline and is used for discharging residual water in the water outlet pipeline; wherein the hot tank is provided with an exhaust hole, and the exhaust hole is communicated with the waste water discharge device. Compared with the prior art, the hot tank and the waste water discharging device are arranged, the hot tank is mainly used for conducting heat exchange on water flow in the heat exchange device, the temperature of the water flow is increased, in this way, the time needed by the heater for conducting secondary heating on the water flow to reach the set temperature is short, and the effect of instantly discharging hot water is achieved; the exhaust hole of the hot tank discharges waste water to the outside through the waste water discharge device to ensure that the internal pressure of the hot tank is in a normal state.

Description

TECHNICAL FIELD

[0001] The utility model relates to water supply device technical field, especially water supply device. BACKGROUND

[0002] The hot water machine is a kind of equipment for preparing hot water, with the pursuit of people's life convenience, water supply device has become one of the household appliances commonly used in today's family.In daily life, people often need to use hot water, such as washing hands, washing face, etc.With hot water machine, just open the faucet, can get hot water, without waiting for stove to boil water or from other hot water source to transport hot water, greatly save time.

[0003] When the hot tank in the water supply device is heated, water vapor will be generated inside, if the water vapor in the hot tank cannot be discharged, with the continuation of heating process, water vapor will continue to generate, when the pressure exceeds the limit that the hot tank can bear, it can cause the damage of the hot tank;And too much water vapor gathered in the hot tank can affect the heating efficiency, and the thermal conductivity of water vapor is much lower than that of water. SUMMARY

[0004] In view of the deficiencies in the prior art, the utility model provides a water supply device, which can discharge water vapor in the hot tank and ensure that the hot tank maintains normal pressure.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A water supply device, comprising a heat exchange device, a hot tank, a water outlet pipeline and a wastewater discharge device, the heat exchange device is provided with water flow channel and heat exchange medium channel isolated from each other;The hot tank is used for containing heat exchange medium, the hot tank is connected with heat exchange power component for making the heat exchange medium flow through the heat exchange medium channel;The water outlet pipeline communicates with the water flow channel;The wastewater discharge device is connected to at least the water outlet pipeline;Wherein, the hot tank is provided with exhaust hole, the exhaust hole is communicated with the wastewater discharge device.

[0007] As one of the embodiments, the wastewater discharge device includes a wastewater pump and a wastewater pipe, the wastewater pipe is connected to the water outlet pipeline, the wastewater pipe is used for backflow of water flow in the water outlet pipeline, the wastewater pump and the wastewater pipe are connected, for discharging water in the wastewater pipe to the outside, the exhaust hole is communicated with the wastewater pipe.

[0008] As one of the embodiments, the wastewater discharge device includes a three-way valve, the exhaust pipe is connected with the exhaust hole, the exhaust pipe and the wastewater pipe are communicated with the three-way valve respectively, and the wastewater pump is connected with the three-way valve.

[0009] In one embodiment, the exhaust pipe passes through the heat exchange device and is connected to the wastewater discharge device. The exhaust pipe is used to heat the water flow channel and / or the heat exchange medium channel.

[0010] In one embodiment, the heat exchange power component includes a circulating pump, a first pipeline, and a second pipeline. The heat exchange medium channel has an outlet and an inlet. The first pipeline is connected to the heat tank and the inlet, respectively. The second pipeline is connected to the heat tank and the outlet, respectively. The circulating pump is connected to the first pipeline and is used to make the heat exchange medium flow through the heat exchange medium channel.

[0011] In one embodiment, the second pipeline is connected to the wastewater discharge device.

[0012] In one embodiment, the first pipeline has a first port, a second port, and a third port. The first port is connected to the hot tank, the second port is connected to the wastewater discharge device, and the third port is connected to the heat exchange medium channel. The second port is provided with a barrier, which is used to control the opening and closing of the second port, or the barrier is used to block liquid and conduct gas. The barrier is a valve body; or the barrier adopts a porous structure; or the barrier is made of a hydrophobic film material.

[0013] In one embodiment, the first pipeline has a first port and a second port, the first port being connected to the hot tank and the second port being connected to the wastewater discharge device, the second port being located above the first port.

[0014] In one embodiment, the water supply device includes an inlet pipe and a heater. The inlet pipe and the outlet pipe are respectively connected to the water flow channel. The heater is connected between the water flow channel and the outlet pipe, or the heater is connected between the inlet pipe and the water flow channel.

[0015] In one embodiment, the hot tank is connected to a heating element for heating the heat exchange medium, the heating element being located inside the hot tank, or the heating element being located outside the hot tank.

[0016] The beneficial effects of this utility model are as follows: This application provides a water supply device, including a heat exchange device, a hot tank, a water outlet pipe, and a wastewater discharge device. The heat exchange device is provided with a water flow channel and a heat exchange medium channel that are isolated from each other. The hot tank is used to contain the heat exchange medium and is connected to a heat exchange power component for allowing the heat exchange medium to flow through the heat exchange medium channel. The water outlet pipe is connected to the water flow channel. The wastewater discharge device is connected to the water outlet pipe and is used to discharge residual water from the water outlet pipe. The hot tank has an exhaust port that is connected to the wastewater discharge device. Compared with the prior art, this application provides a hot tank and a wastewater discharge device. The hot tank is mainly used to exchange heat with the water flow in the heat exchange device, thus raising the water temperature. This reduces the time required for the heater to reheat the water flow to the set temperature, achieving the effect of instant hot water. Simultaneously, the exhaust port of the hot tank discharges water to the outside through the wastewater discharge device, ensuring that the internal pressure of the hot tank remains normal. Attached Figure Description

[0017] Figure 1 A schematic diagram of the water circuit structure of a water supply device according to this utility model is shown;

[0018] Figure 2 This invention provides a schematic diagram of another water circuit structure for a water supply device.

[0019] Figure 3 This invention provides a schematic diagram of another water circuit structure for a water supply device.

[0020] Figure 4 A schematic diagram of the structure of a first pipeline according to the present invention is shown.

[0021] Reference numerals in the attached drawings: 1. Heat exchanger; 2. Heater tank; 3. Outlet water pipe; 4. Wastewater discharge device; 5. Heater; 6. Inlet water pipe; 7. Valve; 21. Exhaust pipe; 22. Heat exchange power component; 41. Wastewater pump; 42. Wastewater pipe; 43. Three-way valve; 221. Circulation pump; 222. First pipe; 223. Second pipe; 2221. First port; 2222. Second port; 2223. Third port. Detailed Implementation

[0022] In this utility model, the terms "set up," "equipped with," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or constituent parts. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] The terms “center,” “longitudinal,” “lateral,” “length,” “width,” “thickness,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” “radial,” and “circumferential” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0027] See Figure 1 This application provides a water supply device, including a heat exchange device 1, a heat tank 2, a water outlet pipe 3, and a wastewater discharge device 4. The heat exchange device 1 is provided with a water flow channel and a heat exchange medium channel that are isolated from each other. The heat tank 2 is used to contain the heat exchange medium and is connected to a heat exchange power component 22 for making the heat exchange medium flow through the heat exchange medium channel. The water outlet pipe 3 is connected to the water flow channel. The wastewater discharge device 4 is connected to the water outlet pipe 3 and is used to discharge the water remaining in the water outlet pipe 3. The heat tank 2 is provided with an exhaust port, which is connected to the wastewater discharge device 4.

[0028] In practical applications, the water supply device typically also includes an inlet pipe 6 and a heater 5. The inlet pipe 6 is connected to a water flow channel, and water enters the water flow channel from the inlet pipe 6 and flows out from the outlet pipe 3 to provide hot water for users. The heat exchange medium contained in the heat tank 2 can be a high-temperature liquid such as hot water. The heat tank 2 is connected to the heat exchange medium channel. The heat exchange power component 22 drives the hot water (heat exchange medium) in the heat tank 2 to flow in the heat exchange medium channel. When the hot water (heat exchange medium) flows in the heat exchange medium channel, it exchanges heat with the water in the water flow channel to heat the water in the water flow channel. After the temperature of the hot water (heat exchange medium) drops, it returns to the heat tank 2 through the heat exchange medium channel for reheating, so that the hot water (heat exchange medium) circulates between the heat tank 2 and the heat exchange medium channel, ensuring that the hot water (heat exchange medium) in the heat exchange medium channel always maintains a high temperature. Since the water in the water flow channel has been heated by the heat exchange medium, the amount of heat required to raise the water temperature to the set temperature is small. Therefore, this device can use a heater 5 with a smaller power to heat the water in the water flow channel, and can save heating time, thus realizing the function of the water supply device to provide hot water immediately.

[0029] Wastewater discharge device 4 is connected to water outlet pipe 3. Wastewater discharge device 4 is mainly used to recover residual water in water outlet pipe 3 and discharge it to the outside, so as to prevent residual water in water outlet pipe 3 from affecting the temperature of hot water output. Specifically, water outlet pipe 3 is connected to faucet. Wastewater discharge device 4 can recover residual water flow between water outlet pipe 3 and faucet. This ensures that when the user turns on the faucet, hot water at the set temperature flows out, instead of residual water at room temperature, which would affect the user experience.

[0030] Meanwhile, the heating tank 2 is equipped with an exhaust port to discharge water vapor inside the heating tank 2, preventing excessive pressure from causing malfunction. The exhaust port is connected to the wastewater discharge device 4, which discharges water vapor to the outside of the device, ensuring that the internal pressure of the heating tank 2 remains normal.

[0031] Compared with the prior art, this application sets up a hot tank 2 and a wastewater discharge device 4. The hot tank 2 is mainly used to exchange heat with the water flow in the heat exchange device 1, so that the water flow can be heated. In this way, the time required for the heater 5 to reheat the water flow to the set temperature is shorter, so as to achieve the effect of instant hot water. At the same time, the exhaust port of the hot tank 2 is discharged to the outside through the wastewater discharge device 4 to ensure that the internal air pressure of the hot tank 2 is maintained and to avoid affecting the normal operation of the hot tank 2.

[0032] See again Figure 1 The inlet pipe 6 and the outlet pipe 3 are respectively connected to the water flow channel, and the heater 5 is connected between the water flow channel and the outlet pipe 3, or the heater 5 is connected between the inlet pipe 6 and the water flow channel.

[0033] In practical applications, both heater 5 and hot water tank 2 are used to heat the water in the water flow channel so that it reaches the set temperature when it exits the outlet pipe 3. Heater 5 and hot water tank 2 can operate independently to avoid excessive power consumption exceeding the circuit's capacity when operating simultaneously. For example, heater 5 can be connected between the water flow channel and the outlet pipe 3. When water flows through the water flow channel, it is first heated by the hot water (heat exchange medium) in the heat exchange medium channel. Then, as it flows through the outlet pipe 3, it undergoes secondary heating by heater 5, reaching the set temperature and flowing out of the tap, achieving the effect of instant hot water. Using this method, heater 5 can use less power, saving production and design costs, and also saving energy. Of course, placing heater 5 between the inlet pipe 6 and the water flow channel, with heater 5 performing primary heating first and then the heat exchange medium channel performing secondary heating, can achieve a similar effect.

[0034] See again Figure 1 The wastewater discharge device 4 includes a wastewater pump 41 and a wastewater pipe 42. The wastewater pipe 42 is connected to the outlet pipe 3 and is used for the return flow of water from the outlet pipe 3. The wastewater pump 41 is connected to the wastewater pipe 42 to discharge the water in the wastewater pipe 42 to the outside. The vent is connected to the wastewater pipe 42. The wastewater pump 41 can be a water pump.

[0035] In practical applications, in addition to providing hot water, water supply devices usually also have the function of discharging room temperature or cold water. Therefore, when switching from room temperature or cold water to hot water, some room temperature or cold water remains at the faucet. This residual water will affect the temperature of the hot water being discharged, and the effect of instant hot water cannot be achieved.

[0036] Based on this, this application includes a wastewater pump 41 and a wastewater pipe 42. The wastewater pipe 42 is connected to the outlet pipe 3. The wastewater pump 41 provides back suction to draw the residual water from the outlet pipe 3 to the faucet back to the wastewater pipe 42, and then discharges it to the outside through the wastewater pipe 42. At the same time, the vent is connected to the wastewater pipe 42 so that the water vapor in the hot tank 2 can be discharged from the wastewater pipe 42, eliminating the need for an additional venting device and simplifying the pipeline design.

[0037] In one embodiment, the heater 5 is connected between the water flow channel and the outlet pipe 3. A valve 7 can be installed between the heater 5 and the faucet. The wastewater pipe 42 is connected to the valve 7. The wastewater pipe 42 draws back the residual water between the valve 7 and the faucet, preventing the residual water from flowing back to the heater 5 and affecting the heating efficiency of the heater 5. Furthermore, the valve 7 can cut off the pipeline between the wastewater pipe 42 and the heater 5, preventing water vapor from flowing back from the wastewater pipe 42 to the heater 5.

[0038] See again Figure 1The wastewater discharge device 4 also includes a three-way valve 43, an exhaust port connected to an exhaust pipe 21, the exhaust pipe 21 and the wastewater pipe 42 are respectively connected to the three-way valve 43, and the wastewater pump 41 is connected to the three-way valve 43.

[0039] In practical applications, the three-way valve 43 has three ports. The exhaust pipe 21 and the wastewater pipe 42 are connected to two of the ports respectively. The other port is connected to the outside and is connected to the wastewater pump 41. The exhaust port is directly connected to the three-way valve 43 through the exhaust pipe 21. The exhaust pipe 21 is set separately to discharge the water vapor in the hot tank 2. The exhaust pipe 21 and the wastewater pipe 42 work independently to avoid mutual interference, optimize the drainage performance of the wastewater pipe 42 and enhance the exhaust effect of the exhaust pipe 21.

[0040] It should be noted that the three-way valve 43 is generally divided into a diverting three-way valve 43 and a confluence three-way valve 43. A diverting three-way valve 43 typically has one inlet and two outlets; fluid (gas) enters from the inlet and flows out from the two outlets according to different flow rates and proportions. A confluence three-way valve 43 has two inlets and one outlet; fluid (gas) enters from the two inlets and exits from the single outlet. In this embodiment, a confluence three-way valve 43 can be used, with the exhaust pipe 21 and wastewater pipe 42 connected to the two inlets respectively, and then wastewater and water vapor discharged from one outlet, allowing for simultaneous exhaust and wastewater discharge. Of course, the three-way valve 43 can also be adjusted by changing the valve core position to allow one inlet and outlet to be open while the other inlet and outlet are closed, allowing for separate exhaust or wastewater discharge.

[0041] See Figure 2 The exhaust pipe 21 passes through the heat exchange device 1 and is connected to the wastewater discharge device 4. The exhaust pipe 21 is used to heat the water flow channel and / or the heat exchange medium channel.

[0042] In practical applications, since water vapor has a high temperature, when water vapor enters the exhaust pipe 21, the exhaust pipe 21 passes through the heat exchange device 1. Therefore, the exhaust pipe 21 can exchange heat with the water flow channel or the heat exchange medium channel, and use the temperature of the water vapor to reheat the water flow in the heat exchange device 1, so as to realize the multiple utilization of heat energy, greatly improve the heating efficiency of the water supply device, and enhance the energy-saving effect of the water supply device.

[0043] See Figure 3 The heat exchange power component 22 includes a circulating pump 221, a first pipeline 222 and a second pipeline 223. The heat exchange medium channel has an outlet and an inlet. The first pipeline 222 is connected to the heat tank 2 and the inlet, respectively. The second pipeline 223 is connected to the heat tank 2 and the outlet, respectively. The circulating pump 221 is connected to the first pipeline 222. The circulating pump 221 is used to make the heat exchange medium flow through the heat exchange medium channel.

[0044] In practical applications, the heat exchange medium channel usually has an inlet and an outlet. The first pipeline 222 is connected to the inlet, and the circulating pump 221 pumps the hot water in the heat tank 2 into the heat exchange medium channel from the inlet. After the hot water flows in the heat exchange medium channel and exchanges heat with the water flow channel, the hot water temperature decreases. Then, it flows back to the inside of the heat tank 2 from the outlet through the second pipeline 223, is reheated by the heating element, and is pumped back into the heat exchange medium channel. This cycle is repeated to achieve the effect of the heat tank 2 heating the inlet water channel.

[0045] See again Figure 3 The second pipeline 223 is connected to the wastewater discharge device 4.

[0046] In practical applications, the (hot water) heat exchange medium in the hot tank 2 is prone to scale and other stains after long-term use. The accumulation of scale in the hot tank 2 will affect the heating efficiency of the hot tank 2 and will also easily breed bacteria. Therefore, the (hot water) heat exchange medium in the hot tank 2 needs to be drained and replenished with new (hot water) heat exchange medium regularly. Therefore, the second pipeline 223 can be connected to the wastewater discharge device 4, and the (hot water) heat exchange medium in the hot tank 2 can be extracted and discharged outward by the wastewater pump 41, which is convenient for replacing the (hot water) heat exchange medium in the hot tank 2.

[0047] See again Figure 3 The first pipeline 222 has a first port 2221, a second port 2222 and a third port 2223. The first port 2221 is connected to the heat tank 2, the second port 2222 is connected to the wastewater discharge device 4, and the third port 2223 is connected to the heat exchange medium channel. The second port 2222 is provided with a barrier, which is used to control the opening and closing of the second port 2222, or the barrier is used to block liquid and conduct gas. The barrier is a valve body; or the barrier adopts a porous structure; or the barrier is made of a hydrophobic film material.

[0048] In practical applications, the first port 2221 and the third port 2223 are connected to allow the heat exchange medium to circulate between the heat exchange medium channel and the hot tank 2. The second port 2222 and the third port 2223 are connected to allow the water vapor from the hot tank 2 to be discharged to the wastewater discharge device 4. To prevent the heat exchange medium from the first port 2221 from being directed to the second port 2222, a barrier is installed at the second port 2222. The barrier can be controlled by a valve body to open and close the second port 2222. When not venting, the valve body closes the second port 2222 to prevent the heat exchange medium from being discharged from the second port 2222, thus avoiding waste of heat energy. When venting, the valve body opens the second port 2222. At this time, the circulating pump 221 can stop working, so that only water vapor can be exported from the hot tank 2 and discharged to the wastewater discharge device 4 through the second port 2222. The heat exchange medium cannot flow out of the hot tank 2, thus avoiding waste of the heat exchange medium.

[0049] Of course, the barrier can also be a gas valve. Since gas valves are mainly designed to control gas flow, gas molecules have large spacing, high fluidity, and high compressibility. Liquid molecules, on the other hand, have small spacing, slightly weaker fluidity, and are almost incompressible. Therefore, they can effectively prevent the heat exchange medium from entering the second port 2222. In this way, it is not necessary to frequently open and close the valve body to achieve the opening and closing of the second port 2222.

[0050] Barrier components can also employ porous structures, which typically have nanoscale pores. Liquid molecules find it difficult to overcome surface tension and enter the pores, thereby preventing water from flowing through.

[0051] The barrier material can also be a hydrophobic film material. The ability of hydrophobic film materials to block liquids is mainly based on their unique surface energy and contact angle characteristics. When a liquid comes into contact with the surface of a hydrophobic film material, a contact angle is formed. For hydrophobic materials, their low surface energy allows the liquid to form a large contact angle, which can approach 180°. The liquid rolls across the surface of the hydrophobic film material like a water droplet and cannot penetrate. At the same time, hydrophobic film materials generally have a certain porous structure, allowing gas flow.

[0052] It should be noted that the barrier element may also adopt other structures, and this application does not limit it.

[0053] See Figure 4 The second port 2222 is located above the first port 2221. Since water vapor is in a gaseous state and diffuses upwards, while the heat exchange medium is typically in a liquid state, it remains below the water vapor due to gravity. Therefore, placing the second port 2222 above the first port 2221 automatically separates the heat exchange medium and water vapor. The heat exchange medium cannot overcome gravity to enter the second port 2222, thus preventing it from being discharged from the second port 2222 and wasting heat energy. This method achieves the separation of water vapor and heat exchange medium without the need for obstructions, resulting in a simpler and more practical structure.

[0054] In one embodiment, the hot tank 2 is connected to a heating element for heating the heat exchange medium. The heating element is located inside the hot tank 2, or the heating element is located outside the hot tank 2.

[0055] In practical applications, the heat exchange medium inside the hot tank 2 always needs to be at a high temperature. Therefore, a heating element is required to heat the heat exchange medium and ensure that the heat exchange medium is at the set temperature. The heating element can be installed inside the hot tank 2, saving the space and volume of the entire device; the heating element can also be installed on the outside, which makes installation more convenient and facilitates maintenance and replacement.

[0056] In one embodiment, the heat exchange device 1 includes multiple water flow channels and multiple heat exchange medium channels. Each water flow channel and each heat exchange medium channel is isolated from each other. Adjacent water flow channels can be interconnected, and adjacent heat exchange medium channels can be interconnected. A water flow channel is sandwiched between adjacent heat exchange medium channels. That is, the water flow channels and heat exchange medium channels are alternately arranged, and the water flow channels and heat exchange medium channels are not interconnected. Each water flow channel can be interconnected, and each heat exchange medium channel can be interconnected. With this arrangement, both sides of the water flow channel are heated by the heat exchange medium channel, which effectively improves the heat exchange efficiency between the heat exchange medium channel and the water flow channel.

[0057] Specifically, the heat exchange device 1 includes multiple heat-conducting structures, which are stacked together. A heat exchange medium channel is formed between two adjacent heat-conducting structures. Each heat-conducting structure has a water flow channel inside. The heat-conducting structure is plate-shaped or sheet-shaped, which increases the contact area between the water flow channel and the heat exchange medium channel. The heat-conducting structure can be made of materials with high thermal conductivity, such as metal, to achieve efficient heat transfer.

[0058] In one embodiment, the hot tank 2 may also be equipped with a pressure relief valve and a temperature sensor. When the exhaust pipe 21 is blocked, the pressure inside the hot tank 2 becomes too high. When the pressure exceeds the pressure value set by the pressure relief valve, the pressure relief valve will automatically open to release the excess pressure, thereby ensuring that the pressure inside the hot tank 2 is always within a safe range. The temperature sensor can be electrically connected to the heating element through the control system. The temperature sensor is used to monitor the temperature inside the hot tank 2. When the temperature exceeds the preset temperature, the temperature sensor transmits the temperature information to the control system, and the control system controls the heating element to stop heating. When the temperature decreases, the temperature sensor transmits the temperature information to the control system, and the control system controls the heating element to start heating, ensuring that the heat exchange medium inside the hot tank 2 is always at the specified temperature, and can effectively exchange heat with the water flow in the water flow channel.

[0059] Unlike existing technologies, this application provides a water supply device, including a heat exchange device 1, a heat tank 2, a water outlet pipe 3, and a wastewater discharge device 4. The heat exchange device 1 is provided with a water flow channel and a heat exchange medium channel that are isolated from each other. The heat tank 2 is used to contain the heat exchange medium and is connected to a heat exchange power component 22 for allowing the heat exchange medium to flow through the heat exchange medium channel. The water outlet pipe 3 is connected to the water flow channel. The wastewater discharge device 4 is connected to the water outlet pipe 3 and is used to discharge residual water from the water outlet pipe 3. The heat tank 2 has an exhaust port, which is connected to the wastewater discharge device 4. Compared with existing technologies, this application provides a heat tank 2 and a wastewater discharge device 4. The heat tank 2 is mainly used to exchange heat with the water flow in the heat exchange device 1, thereby raising the water temperature. This reduces the time required for the heater 5 to reheat the water flow to the set temperature, achieving the effect of instant hot water. At the same time, the exhaust port of the heat tank 2 is discharged to the outside through the wastewater discharge device 4, ensuring that the internal pressure of the heat tank 2 is in a normal state.

[0060] The above description is only a specific embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A water supply device characterized by comprising: The application relates to a heat exchange device (1) comprising: a water flow channel and a heat exchange medium channel which are isolated from each other; a heat tank (2) for containing the heat exchange medium, wherein a heat exchange power component (22) for making the heat exchange medium flow through the heat exchange medium channel is connected to the heat tank (2); a water outlet pipeline (3) which communicates with the water flow channel; a waste water discharge device (4) which is connected to at least the water outlet pipeline (3); wherein the heat tank (2) is provided with an exhaust hole which communicates with the waste water discharge device (4).

2. The water supply device according to claim 1, characterized by The waste water discharge device (4) comprises a waste water pump (41) and a waste water pipe (42), the waste water pipe (42) is connected to the water outlet pipeline (3) and is used for backflow of water in the water outlet pipeline (3), the waste water pump (41) is connected to the waste water pipe (42) and is used for discharging water in the waste water pipe (42) to the outside, and the exhaust hole communicates with the waste water pipe (42).

3. The water supply device according to claim 2, characterized in that The waste water discharge device (4) comprises a three-way valve (43), the exhaust hole is connected with an exhaust pipe (21), the exhaust pipe (21) and the waste water pipe (42) respectively communicate with the three-way valve (43), and the waste water pump (41) is connected to the three-way valve (43).

4. The water supply device according to claim 3, characterized by The exhaust pipe (21) penetrates through the heat exchange device (1) and communicates with the waste water discharge device (4), and the exhaust pipe (21) is used for heating the water flow channel and / or the heat exchange medium channel.

5. The water supply apparatus according to claim 1, wherein The heat exchange power component (22) comprises a circulating pump (221), a first pipeline (222) and a second pipeline (223), the heat exchange medium channel has an outlet and an inlet, the first pipeline (222) respectively communicates with the heat tank (2) and the inlet, the second pipeline (223) respectively communicates with the heat tank (2) and the outlet, and the circulating pump (221) is connected to the first pipeline (222) and is used for making the heat exchange medium flow through the heat exchange medium channel.

6. The water supply device according to claim 5, characterized by The second pipeline (223) communicates with the waste water discharge device (4).

7. The water supply device according to claim 5, characterized by The first pipeline (222) has a first port (2221), a second port (2222) and a third port (2223), the first port (2221) communicates with the heat tank (2), the second port (2222) communicates with the waste water discharge device (4), and the third port (2223) communicates with the heat exchange medium channel; the second port (2222) is provided with a barrier piece which is used for controlling opening and closing of the second port (2222) or is used for blocking liquid and conducting gas; the barrier piece is a valve body; alternatively, the barrier piece adopts a porous structure; or the material of the barrier piece adopts a hydrophobic film material.

8. The water supply apparatus according to claim 5, wherein The first pipeline (222) has a first port (2221) and a second port (2222), the first port (2221) is communicated with the heat tank (2), the second port (2222) is communicated with the wastewater discharge device (4), and the second port (2222) is located above the first port (2221).

9. The water supply apparatus according to claim 1, wherein The water supply device comprises a water inlet pipeline (6) and a heater (5), the water inlet pipeline (6) and the water outlet pipeline (3) are communicated with the water flow channel respectively, and the heater (5) is connected between the water flow channel and the water outlet pipeline (3), or the heater (5) is connected between the water inlet pipeline (6) and the water flow channel.

10. The water supply apparatus according to claim 1, wherein The heat tank (2) is connected with a heating element for heating the heat exchange medium, and the heating element is located inside the heat tank (2), or the heating element is located outside the heat tank (2).

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