How warm water dispenser works

Abstract

The invention relates to the technical field of water dispensers, and specifically discloses a working method of a warm boiled water dispenser, wherein the warm boiled water dispenser comprises a heating water tank, a heat exchange module, a control module, a first water inlet valve and a second water inlet valve, the heating water tank is provided with a heating inlet and a boiled water outlet, a first temperature probe is arranged in the heating water tank, and the boiled water outlet is connected to a boiled water outlet valve, the heat exchange module comprises a first heat exchange section and a second heat exchange section, the first heat exchange section is provided with a cold water inlet, a hot water outlet, a boiled water inlet and a warm boiled water outlet, a part of the second heat exchange section extends into the heating water tank, a second temperature probe is arranged at one end of the second heat exchange section connected to the boiled water inlet, and the warm boiled water outlet is connected to a warm boiled water outlet valve; in this water dispenser, a water path for discharging boiled water and a water path for discharging warm boiled water are independent of each other, thereby ensuring the freshness of the warm boiled water, the overall product has few parts and a simple structure, and can also ensure that the water path for discharging warm boiled water works stably.

Description

Technical Field

[0001] The invention relates to the technical field of water dispensers, and in particular to a working method of a warm water dispenser. Background Art

[0002] The existing warm boiled water dispenser, see utility model patent CN220917171U, name: boiled water dispenser, authorization announcement date: May 10, 2024, includes a heat exchanger, a heating water tank, a water outlet pump and a boiled water control valve, the heat exchanger includes a cold water inlet, a hot water outlet, a boiling water inlet and a boiled water outlet, the boiling water inlet and the hot water outlet are respectively connected to the heating water tank, the water outlet pump is connected between the boiled water outlet and the boiled water control valve, the heating water tank is connected to the atmosphere, and also includes a storage water tank, a first water inlet pump and a control module, the first water inlet pump is connected between the cold water inlet and the storage water tank, the first water inlet pump, the water outlet pump and the boiled water control valve are respectively electrically connected to the control module, and the water inlet flow rate Q1 of the first water inlet pump is less than or equal to the water outlet flow rate Q2 of the water outlet pump; this boiled water dispenser provides a boiled water dispenser that can not only achieve zero pressure inside the heating water tank, but also prevent overflow of the heating water tank.

[0003] However, the working method of the warm boiled water dispenser with the above structure still has the following shortcomings: (1) The warm boiled water is obtained by heating the boiled water in the heating water tank and then entering the heat exchanger for heat exchange, that is, the boiled water in the heating water tank is output in two ways, namely, a water outlet pipe and a warm boiled water outlet pipe. In actual use, it is easy for unused water to remain in the heating water tank overnight, which is reheated and boiled and flows to the heat exchanger, which affects the freshness of the warm boiled water after heat exchange; (2) The above-mentioned boiled water dispenser needs to be equipped with water pumps in both the water inlet pipe and the warm boiled water outlet pipe, so that the overall product involves more parts and the manufacturing cost is high. Summary of the invention

[0004] The object of the present invention is to solve the deficiencies of the above-mentioned prior art and to provide a working method of a warm water dispenser in which a water path for discharging boiled water and a water path for discharging warm boiled water are independent of each other, thereby ensuring the freshness of the warm boiled water. At the same time, the overall product involves few parts, has a simple structure, and can ensure that the water path for discharging warm boiled water works normally and stably.

[0005] The object of the present invention is achieved in that:

[0006] A working method of a warm boiled water dispenser, the warm boiled water dispenser comprises a heating water tank, a heat exchange module, a control module, a first water inlet valve and a second water inlet valve, the heating water tank is provided with a heating inlet, a boiled water outlet and a first exhaust port, a first temperature probe is arranged in the heating water tank, the boiled water outlet is connected to a boiled water outlet valve, two ends of the first water inlet valve are respectively connected to external tap water and the heating inlet, the heat exchange module comprises a first heat exchange section and a second heat exchange section, the first heat exchange section is provided with a cold water inlet, a hot water outlet, A boiled water inlet and a warm boiled water outlet, two ends of the second heat exchange section are respectively connected with the hot water outlet and the boiled water inlet and a part of the second heat exchange section extends into the heating water tank, a second temperature probe is provided at one end of the second heat exchange section connected with the boiled water inlet, two ends of the second water inlet valve are respectively connected with the external tap water and the cold water inlet, a warm boiled water outlet valve is connected to the warm boiled water outlet, and a control module is respectively electrically connected with the first water inlet valve, the second water inlet valve, the heating water tank, the first temperature probe, the second temperature probe, the boiled water outlet valve and the warm boiled water outlet valve;

[0007] The real-time temperature detected by the first temperature probe is T1, the real-time temperature detected by the second temperature probe is T2, the second water inlet valve adopts a periodic power-on and power-off working mode, the cumulative number of times when the power is off during each power-on and power-off cycle of the second water inlet valve is judged to be T2 < 94°C is recorded as n, and the cumulative number of times when the power is off during each power-on and power-off cycle of the second water inlet valve is judged to be T2 > 96°C is recorded as m;

[0008] The working method of the warm water dispenser includes the following steps:

[0009] S1. When preparing warm water for the first time, the working mode of the second water inlet valve is energized for 1s and de-energized for 1s;

[0010] S2, when T2<94℃, adjust the working mode of the second water inlet valve to power on for 1s and power off for N=(n+1)s;

[0011] S3, when 94°C≤T2≤96°C, the second water inlet valve maintains the on-off cycle working mode in step S2;

[0012] S4. When T2>96℃, adjust the working mode of the second water inlet valve to power on for 1s and power off for M=(Nm)s; repeat this cycle.

[0013] The purpose of the present invention can also be solved by the following technical measures:

[0014] Specifically, when T2≥92°C, the control module can control the second water inlet valve to start working.

[0015] Specifically, in step S4, when Nm≤0, M=0.

[0016] Specifically, it also includes a warm water tank, in which a first low water level electrode and a first high water level electrode are arranged, the first low water level electrode and the first high water level electrode are electrically connected to the control module respectively, one end of the warm water outlet extends into the warm water tank, a second exhaust port and a water outlet are opened on the warm water tank, and the water outlet is connected to the warm water outlet valve.

[0017] Specifically, the water level of the water outlet is lower than the first low water level electrode. When the water level in the warm water tank reaches the first low water level electrode, the control module can control the warm water outlet valve to start working.

[0018] Specifically, when the water level in the warm water tank reaches the first high water level electrode, the control module controls the second water inlet valve to stop working.

[0019] Specifically, a one-way valve is further provided between the second water inlet valve and the cold water inlet of the first heat exchange section, and the one-way valve is electrically connected to the control module.

[0020] Specifically, it also includes a three-way connecting pipe, the inlet of the three-way connecting pipe is connected to the external tap water and a pressure-stabilizing valve is arranged on the inlet of the three-way connecting pipe, the first outlet of the three-way connecting pipe is connected to the first water inlet valve, the second outlet of the three-way connecting pipe is connected to the second water inlet valve, and the pressure-stabilizing valve is electrically connected to the control module.

[0021] Specifically, the heating water tank is provided with an electric heating tube, a second low water level electrode and a second high water level electrode, and the electric heating tube, the second low water level electrode and the second high water level electrode are electrically connected to the control module respectively, and the water levels of the electric heating tube, the first temperature probe and the second heat exchange section are all lower than the second low water level electrode.

[0022] The beneficial effects of the present invention are as follows:

[0023] The working method of this warm boiled water dispenser is that when preparing warm boiled water, the external cold water is heated to boiled water (the boiling water temperature in the national standard is 92°C) through the first heat exchange section and the second heat exchange section, and then the boiled water is cooled down through the first heat exchange section to flow out as warm boiled water, so that the water path for discharging warm boiled water and the water path for discharging boiled water are independent of each other, which can well ensure the freshness of the warm boiled water. At the same time, this product does not require the installation of an additional water pump, and the overall product has fewer parts and a simple structure. Furthermore, the above working method can well ensure that the warm boiled water is obtained by cooling the boiled water after reaching the national standard boiling water temperature, thereby ensuring the stable operation of the water path for discharging warm boiled water, and the implementation effect is good.

[0024] In step S4, when Nm≤0, M=0; at this time, the second water inlet valve 5 is always in the energized water inlet state until the water temperature in the second heat exchange section 22 drops to the corresponding temperature, which can effectively avoid the water temperature in the second heat exchange section 22 being too high.

[0025] The warm water tank 9 can store warm water, which is beneficial to the stable and continuous water output from the water outlet 94 and the warm water outlet valve 7 . BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the working method of the warm water drinking machine of the present invention.

[0027] Figure 2 The diagram is a schematic diagram of the electrical part of the working method of the warm water dispenser of the present invention. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0029] Example, combined with Figure 1 to Figure 2 As shown, a working method of a warm water dispenser, the warm water dispenser includes a heating water tank 1, a heat exchange module 2, a control module 3, a first water inlet valve 4 and a second water inlet valve 5, the heating water tank 1 is provided with a heating inlet 11, a boiling water outlet 12 and a first exhaust port 13, a first temperature probe 14 is arranged in the heating water tank 1, the boiling water outlet 12 is connected to a boiling water outlet valve 6, the two ends of the first water inlet valve 4 are respectively connected to external tap water and the heating inlet 11, the heat exchange module 2 includes a first heat exchange section 21 and a second heat exchange section 22, the first heat exchange section 21 is provided with a cold water inlet 211, a hot water outlet 212, ... The water inlet 213 and the warm water outlet 214, the two ends of the second heat exchange section 22 are respectively connected with the hot water outlet 212 and the boiled water inlet 213 and a part of the second heat exchange section 22 extends into the heating water tank 1, and the end of the second heat exchange section 22 connected with the boiled water inlet 213 is provided with a second temperature probe 8, the two ends of the second water inlet valve 5 are respectively connected with the external tap water and the cold water inlet 211, and the warm water outlet 214 is connected with a warm water outlet valve 7, and the control module 3 is respectively electrically connected with the first water inlet valve 4, the second water inlet valve 5, the heating water tank 1, the first temperature probe 14, the second temperature probe 8, the boiled water outlet valve 6 and the warm water outlet valve 7;

[0030] The real-time temperature detected by the first temperature probe 14 is T1, the real-time temperature detected by the second temperature probe 8 is T2, the second water inlet valve 5 adopts a periodic power-on and power-off working mode, and the cumulative number of times the second water inlet valve 5 is judged to be T2 < 94°C during each power-on and power-off cycle is recorded as n, and the cumulative number of times the second water inlet valve 5 is judged to be T2 > 96°C during each power-on and power-off cycle is recorded as m;

[0031] The working method of the warm water dispenser includes the following steps:

[0032] S1, when preparing warm water for the first time, the working mode of the second water inlet valve 5 is power on for 1s and power off for 1s;

[0033] S2, when T2<94℃, adjust the working mode of the second water inlet valve 5 to power on for 1s and power off for N=(n+1)s;

[0034] S3, when 94°C≤T2≤96°C, the second water inlet valve 5 maintains the working mode of the power on and off cycle in step S2;

[0035] S4. When T2>96°C, adjust the working mode of the second water inlet valve 5 to power on for 1s and power off for M=(Nm)s; and repeat this cycle.

[0036] The working method of this warm boiled water dispenser is as follows: when preparing warm boiled water, external cold water is heated to boiled water (the boiling water temperature in the national standard is 92°C) through the first heat exchange section 21 and the second heat exchange section 22, and then the boiled water is cooled down through the first heat exchange section 21 to flow out as warm boiled water, so that the water path for discharging warm boiled water and the water path for discharging boiled water are independent of each other, which can well ensure the freshness of the warm boiled water. At the same time, this product does not require the installation of an additional water pump, and the overall product has fewer parts and a simple structure. Furthermore, the above working method can well ensure that warm boiled water is obtained by cooling boiled water that has reached the national standard boiling water temperature, thereby ensuring the stable operation of the water path for discharging warm boiled water, and the implementation effect is good.

[0037] As a specific solution, when T2≥92°C, the control module 3 can control the second water inlet valve 5 to start working; this is a prerequisite for the second water inlet valve 5 to start working, so that the water in the second heat exchange section 22 can be heated to the specified boiling water temperature by heat exchange.

[0038] In this embodiment, in step S4, when Nm≤0, M=0; at this time, the second water inlet valve 5 is always in the energized water inlet state until the water temperature in the second heat exchange section 22 drops to the corresponding temperature, which can effectively avoid the water temperature in the second heat exchange section 22 being too high.

[0039] As a more specific solution, it also includes a warm boiled water tank 9, in which a first low water level electrode 91 and a first high water level electrode 92 are arranged, the first low water level electrode 91 and the first high water level electrode 92 are electrically connected to the control module 3 respectively, one end of the warm boiled water outlet 214 extends into the warm boiled water tank 9, and a second exhaust port 93 and a water outlet 94 are opened on the warm boiled water tank 9, and the water outlet 94 is connected to the warm boiled water outlet valve 7; the warm boiled water tank 9 can play the role of storing warm boiled water, which is beneficial to the stable and continuous water outlet of the water outlet 94 and the warm boiled water outlet valve 7; furthermore, the second exhaust port 93 can connect the warm boiled water tank with the external atmosphere, so that the warm boiled water tank is not under pressure, which is beneficial to extending the service life of the warm boiled water tank.

[0040] In this embodiment, the water level of the water outlet 94 is lower than the first low water level electrode 91. When the water level in the warm water tank 9 reaches the first low water level electrode 91, the control module 3 can control the warm water outlet valve 7 to start working; to ensure stable water outlet of the warm water outlet valve 7.

[0041] In this embodiment, when the water level in the warm water tank 9 reaches the first high water level electrode 92, the control module 3 controls the second water inlet valve 5 to stop working, so as to avoid the water level in the warm water tank 9 being too high and causing water overflow.

[0042] As a better implementation scheme, a one-way valve 10 is also arranged between the second water inlet valve 5 and the cold water inlet 211 of the first heat exchange section 21, and the one-way valve 10 is electrically connected to the control module 3 to prevent the water in the first heat exchange section 21 from flowing back to the second water inlet valve 5 and affecting the stable operation of the heat exchange module 2.

[0043] As a more preferred embodiment, it also includes a three-way connecting pipe 20, the inlet 201 of the three-way connecting pipe 20 is connected to the external tap water and a pressure-stabilizing valve 30 is arranged on the inlet 201 of the three-way connecting pipe 20, the first outlet 202 of the three-way connecting pipe 20 is connected to the first water inlet valve 4, the second outlet 203 of the three-way connecting pipe 20 is connected to the second water inlet valve 5, and the pressure-stabilizing valve 30 is electrically connected to the control module 3; the pressure-stabilizing valve 30 can well control the water inlet flow rate of the first water inlet valve 4 and the second water inlet valve 5, which is beneficial to the stable operation and temperature control of the heat exchange module 2 and the heating water tank 1.

[0044] As a more specific solution, the heating water tank 1 is provided with an electric heating tube 15, a second low water level electrode 16 and a second high water level electrode 17. The electric heating tube 15, the second low water level electrode 16 and the second high water level electrode 17 are electrically connected to the control module 3 respectively. The water levels of the electric heating tube 15, the first temperature probe 14 and the second heat exchange section 22 are all lower than the second low water level electrode 16. This can effectively avoid the dry burning of the electric heating tube 15, and is also conducive to the stable operation of the first temperature probe 14 and the second heat exchange section 22.

[0045] The heating water tank 1 of the above-mentioned warm water dispenser comprises the following steps when preparing boiled water:

[0046] S1, external tap water enters the heating water tank 1 through the first water inlet valve 4, until the water level in the heating water tank 1 reaches the second low water level electrode 16, the first water inlet valve 4 is closed, and the electric heating tube starts to be energized for heating;

[0047] S2, when the water temperature rises, T1 ≥ 96°C and the second high water level electrode 17 detects that there is no water, open the first water inlet valve 4 to let water in and continue heating;

[0048] S3, when the water temperature rises, T1 ≥ 96°C and the second high water level electrode 17 detects the presence of water, close the first water inlet valve 4 and continue heating;

[0049] S4, when the water temperature rises, T1 ≥ 98°C and the second high water level electrode 17 detects the presence of water, close the first water inlet valve 4 and stop heating;

[0050] S5. When the water temperature drops and T1 is less than 96°C, the electric heating tube is powered on again for heating;

[0051] S6. When the water temperature drops to 94°C≤T1≤96°C and no water is detected at the high water level, open the first water inlet valve 4 to let water in and continue heating;

[0052] S7. When the water temperature drops to T1<94°C, close the first water inlet valve 4 and continue heating.

[0053] When T1≥92°C, the control module 3 can start the boiling water outlet valve 6 to use boiling water; through the above-mentioned method for preparing boiling water, the water temperature in the heating water tank 1 can be well controlled, thereby achieving stable preparation of boiling water.

[0054] The terms first, second, etc. used in the present invention do not indicate any order, quantity or importance, but are only used for distinction.

[0055] As used in the present invention, the terms "one", "a", etc. do not indicate a limit on quantity, but indicate the existence of at least one of the mentioned objects. As used in the present invention, the terms "top", "bottom", "side", "longitudinal", "lateral", "middle", "center", "outside", "inside", "horizontal", "vertical", "left", "right", "upper", "lower", etc." indicate relative positions, not absolute positions.

[0056] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A method for operating a warm water dispenser, the warm water dispenser comprising a heating water tank (1), a heat exchange module (2), a control module (3), a first water inlet valve (4) and a second water inlet valve (5), the heating water tank (1) being provided with a heating inlet (11), a boiling water outlet (12) and a first exhaust port (13), a first temperature probe (14) being arranged in the heating water tank (1), the boiling water outlet (12) being connected to a boiling water outlet valve (6), wherein: The two ends of the first water inlet valve (4) are respectively connected to external tap water and the heating inlet (11); the heat exchange module (2) comprises a first heat exchange section (21) and a second heat exchange section (22); the first heat exchange section (21) is provided with a cold water inlet (211), a hot water outlet (212), a boiled water inlet (213) and a warm boiled water outlet (214); the two ends of the second heat exchange section (22) are respectively connected to the hot water outlet (212) and the boiled water inlet (213); and a portion of the second heat exchange section (22) extends into the heating water tank ( 1), a second temperature probe (8) is provided at one end of the second heat exchange section (22) connected to the boiled water inlet (213), two ends of the second water inlet valve (5) are respectively connected to the external tap water and the cold water inlet (211), a warm boiled water outlet valve (7) is connected to the warm boiled water outlet (214), and the control module (3) is respectively electrically connected to the first water inlet valve (4), the second water inlet valve (5), the heating water tank (1), the first temperature probe (14), the second temperature probe (8), the boiled water outlet valve (6) and the warm boiled water outlet valve (7); The real-time temperature detected by the first temperature probe (14) is T1, the real-time temperature detected by the second temperature probe (8) is T2, the second water inlet valve (5) adopts a periodic power-on-then-power-off operation mode, the cumulative number of times during each power-on and power-off cycle of the second water inlet valve (5) when it is judged that T2 is less than 94°C is recorded as n, and the cumulative number of times during each power-on and power-off cycle of the second water inlet valve (5) when it is judged that T2 is greater than 96°C is recorded as m; The working method of the warm water dispenser includes the following steps: S1, when preparing warm water for the first time, the working mode of the second water inlet valve (5) is to be powered on for 1 second and powered off for 1 second; S2, when T2 is less than 94°C, the working mode of the second water inlet valve (5) is adjusted to power on for 1s and power off for N=(n+1)s; S3, when 94°C ≤ T2 ≤ 96°C, the second water inlet valve (5) maintains the on-off cycle working mode in step S2; S4. When T2>96°C, adjust the working mode of the second water inlet valve (5) to power on for 1s and power off for M=(Nm)s; and repeat this cycle.

2. The operating method of the warm water dispenser according to claim 1, characterized in that: When T2≥92°C, the control module (3) can control the second water inlet valve (5) to start working.

3. The operating method of the warm water dispenser according to claim 1, characterized in that: In step S4, when Nm≤0, set M=0.

4. The operating method of the warm water dispenser according to claim 1, characterized in that: The invention also comprises a warm water tank (9), wherein a first low water level electrode (91) and a first high water level electrode (92) are arranged in the warm water tank (9), wherein the first low water level electrode (91) and the first high water level electrode (92) are respectively electrically connected to the control module (3), wherein one end of the warm water outlet (214) extends into the warm water tank (9), wherein a second exhaust port (93) and a water outlet (94) are provided on the warm water tank (9), and wherein the water outlet (94) is connected to the warm water outlet valve (7).

5. The operating method of the warm water dispenser according to claim 4, characterized in that: The water level of the water outlet (94) is lower than the first low water level electrode (91), and only when the water level in the warm water tank (9) reaches the first low water level electrode (91) can the control module (3) control the warm water outlet valve (7) to start working.

6. The operating method of the warm water dispenser according to claim 5, characterized in that: When the water level in the warm water tank (9) reaches the first high water level electrode (92), the control module (3) controls the second water inlet valve (5) to stop working.

7. The operating method of the warm water dispenser according to claim 1, characterized in that: A one-way valve (10) is also provided between the second water inlet valve (5) and the cold water inlet (211) of the first heat exchange section (21), and the one-way valve (10) is electrically connected to the control module (3).

8. The operating method of the warm water dispenser according to claim 1, characterized in that: It also comprises a three-way connecting pipe (20), the inlet (201) of the three-way connecting pipe (20) being connected to external tap water and a pressure-stabilizing valve (30) being arranged on the inlet (201) of the three-way connecting pipe (20), the first outlet (202) of the three-way connecting pipe (20) being connected to a first water inlet valve (4), the second outlet (203) of the three-way connecting pipe (20) being connected to a second water inlet valve (5), and the pressure-stabilizing valve (30) being electrically connected to the control module (3).

9. The operating method of the warm water dispenser according to claim 1, characterized in that: The heating water tank (1) is provided with an electric heating pipe (15), a second low water level electrode (16) and a second high water level electrode (17); the electric heating pipe (15), the second low water level electrode (16) and the second high water level electrode (17) are electrically connected to the control module (3) respectively; and the water levels of the electric heating pipe (15), the first temperature probe (14) and the second heat exchange section (22) are all lower than the second low water level electrode (16).

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