Water drinking equipment

Abstract

The utility model relates to drinking water equipment which comprises a pipeline. The hot tank is arranged on the pipeline, and a heating assembly is arranged in the hot tank; the heat exchanger is arranged in the hot tank and is in fluid communication with the pipeline, or the heat exchanger is arranged on the pipeline and is positioned at the downstream of the hot tank, an inlet of the heat exchanger is in fluid communication with a hot air channel and a cold air channel, and the hot air channel and the cold air channel can be alternatively opened. The heat exchanger has the advantages that on one hand, the cold air channel can be used for cooling the heat exchanger to reduce the water temperature in the heat exchanger; on the other hand, heat exchange is conducted on the heat exchanger through the hot air channel, so that the temperature of water in the heat exchanger is rapidly increased, the heating rate is increased, hot air generated by the hot air channel can sterilize the water in the heat exchanger, and it is guaranteed that discharged water is sanitary and safe.

Description

Technical Field

[0001] The utility model relates to drinking water equipment. Background Art

[0002] There are many drinking water devices on the market, such as water purifiers, water dispensers, etc. In order to meet the different needs of users, these drinking water devices are usually equipped with hot tanks or instant heating bodies so that the drinking water devices have the functions of discharging hot water and normal temperature water at the same time.

[0003] In order to obtain hot water faster, a Chinese utility model patent with patent number ZL202321494097.7 (authorization announcement number CN220467600U) discloses a water purifier. By providing a hot tank, the user can obtain hot water from the water purifier, and by setting the heating temperature of the hot tank, hot water with precise temperature can be obtained; in addition, the water purifier can be used in conjunction with a heating faucet. When the user expects the water temperature to be higher, the hot water preheated in the hot tank can be reheated at the heating faucet to meet the user's demand for water at a higher water temperature.

[0004] Although the above-mentioned water purifier can meet the user's demand for higher water temperature by reheating the hot water preheated in the hot tank at the heating faucet; if the user expects the water intake temperature to be lower than the water temperature in the hot tank, the above-mentioned water purifier can use the normal temperature water and the hot water in the hot tank to provide water to the purified water outlet at the same time, so the water received by the user is mixed water; however, the above-mentioned water purifier has the following usage limitations: first, the heating faucet is required for secondary heating, which increases the power usage of the water purifier; second, warm water is produced by mixing normal temperature water and hot water in the hot tank. Once there are microbial substances that have adverse effects on human health in the normal temperature water produced by the water production module, it cannot be guaranteed that the total number of bacteria in the warm water meets the requirements of hygiene and safety. Utility Model Content

[0005] The first technical problem to be solved by the present invention is to provide a drinking water device which can achieve rapid heating of water without redundant heating components and conveniently obtain water of set temperature in view of the above-mentioned prior art.

[0006] The second technical problem to be solved by the utility model is to provide a drinking water device that can ensure the hygienic safety of water in view of the above-mentioned prior art.

[0007] The technical solution adopted by the utility model to solve the first and second technical problems is: a drinking water device, comprising:

[0008] Pipeline;

[0009] A hot tank is arranged on the pipeline and has a heating component inside;

[0010] The invention is characterized in that it also includes:

[0011] The heat exchanger is arranged in the hot tank and connected with the pipeline fluid, or is arranged on the pipeline and located downstream of the hot tank. The inlet fluid of the heat exchanger is connected with a hot gas channel and a cold gas channel, and the hot gas channel and the cold gas channel can be opened selectively.

[0012] In order to form the above-mentioned hot air channel and cold air channel, preferably, the drinking water equipment includes a vortex tube, which has an air inlet, a cold end outlet and a hot end outlet. The cold end outlet of the vortex tube is connected to a first air inlet duct, and the cold end outlet of the vortex tube is connected to a second air inlet duct. Both the first air inlet duct and the second air inlet duct are connected to the inlet of the heat exchanger. The first air inlet duct forms the above-mentioned cold air channel, and the second air inlet duct forms the above-mentioned hot air channel.

[0013] In order to achieve the control of hot air and cold air, a first control valve for controlling the opening and closing of the first air intake duct is provided on the first air intake duct, and a second control valve for controlling the opening and closing of the second air intake duct is provided on the second air intake duct. The first control valve and the second control valve can be opened selectively.

[0014] Preferably, the first air inlet duct is also connected to a cold air outlet pipe, the cold air outlet pipe is provided with a third control valve, the end of the cold air outlet pipe is the cold air outlet, and the third control valve and the first control valve can be opened selectively.

[0015] Preferably, the second air inlet duct is also connected to a hot air outlet pipe, and a fourth control valve is provided on the hot air outlet pipe. The end of the hot air outlet pipe is the hot air outlet, and the fourth control valve and the second control valve can be opened selectively.

[0016] Preferably, the heat exchanger is connected to an exhaust pipe, and the end of the exhaust pipe corresponds to an exhaust port.

[0017] In order to realize air inlet control of the vortex tube, the air inlet of the vortex tube is connected with an air inlet pipe, and the air inlet pipe is provided with a fifth control valve and an air pressure pump.

[0018] In order to control the water outlet temperature of the drinking water equipment, the drinking water equipment also includes a first temperature detection unit for detecting the outlet temperature of the heat exchanger, a second temperature detection unit for detecting the temperature inside the hot tank, and a controller, and the controller is electrically connected to the first temperature detection unit, the second temperature detection unit, the heating assembly and the air pressure pump.

[0019] In order to improve water quality, along the fluid flow path, the pipeline is also provided with a filter element assembly located upstream of the hot tank and a booster pump, and the booster pump is located upstream, downstream or in the middle of the filter element assembly.

[0020] Preferably, the pipeline is also provided with a high-pressure switch located between the filter element assembly and the hot tank.

[0021] Preferably, the drinking water equipment is a water purifier or a water dispenser.

[0022] Compared with the prior art, the utility model has the advantages that: by setting a heat exchanger, the heat exchanger is arranged in the hot tank and is connected to the pipeline fluid, or the heat exchanger is arranged on the pipeline and is located downstream of the hot tank; and the inlet fluid of the heat exchanger is connected to the hot air channel and the cold air channel, and the hot air channel and the cold air channel can be opened selectively. Therefore, on the one hand, the cold air channel can be used to cool the heat exchanger to reduce the water temperature in the heat exchanger; on the other hand, the hot air channel is used to exchange heat with the heat exchanger, so that the water in the heat exchanger is quickly heated up, the heating rate is increased, and the hot air generated by the hot air channel can sterilize the water in the heat exchanger to ensure the hygienic safety of the outlet water. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a water circuit diagram of the drinking water equipment in the embodiment of the utility model;

[0024] Figure 2 for Figure 1 Enlarged view of point A in the middle. DETAILED DESCRIPTION

[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0026] like Figure 1 and Figure 2 As shown, the drinking water device in this embodiment includes a pipeline 1, a heat tank 2, a heat exchanger 3 and a vortex tube 5. The drinking water device can be a water purifier or a water dispenser.

[0027] The hot tank 2 is arranged on the pipeline 1 and has a heating assembly 21 inside it. The heat exchanger 3 is arranged in the hot tank 2 and is in fluid communication with the pipeline 1, or is arranged on the pipeline 1 and is located downstream of the hot tank 2; Figure 1As shown, in order to reduce the volume of the drinking water equipment in this embodiment, the heat exchanger 3 is arranged in the hot tank 2 and is fluidly connected to the pipeline 1; the inlet fluid of the heat exchanger 3 is fluidly connected to the hot air channel 4a and the cold air channel 4b, and the outlet of the heat exchanger 3 is connected to the water outlet pipe 67, on which the seventh control valve 710 is provided, and the end of the water outlet pipe 67 corresponds to the water outlet 1d. The hot tank 2 is also connected to the drain pipe 68, on which the eighth control valve 711 is provided, and the end of the drain pipe 68 corresponds to the emptying port 1e; of course, the heat exchanger 3 is also fluidly connected to the drain pipe 68 through a pipeline, and the eighth control valve 711 is also provided on the pipeline; the heat exchanger 3 is connected to the exhaust pipe 65, on which the exhaust pipe 65 is provided with an air outlet control valve 713, and the end of the exhaust pipe 65 corresponds to the exhaust port 1c; the hot air channel 4a and the cold air channel 4b can be opened selectively; the heating component 21 in this embodiment is an electric heating pipe.

[0028] like Figure 2 As shown, the vortex tube 5 in this embodiment has an air inlet 51, a cold end outlet 52 and a hot end outlet 53. The air inlet 51 of the vortex tube 5 is connected to an air inlet pipe 66, and the air inlet pipe 66 is provided with a fifth control valve 75 and an air pressure pump 76; the cold end outlet 52 of the vortex tube 5 is connected to a first air inlet pipe 61, and the cold end outlet 52 of the vortex tube 5 is connected to a second air inlet pipe 62. The first air inlet pipe 61 and the second air inlet pipe 62 are both connected to the inlet of the heat exchanger 3. The first air inlet pipe 61 forms the above-mentioned cold air channel 4b, and the second air inlet pipe 62 forms the above-mentioned hot air channel 4a; the first air inlet pipe 61 is provided with a first control valve 71 for controlling its opening and closing, and the second air inlet pipe 62 is provided with a second control valve 72 for controlling its opening and closing, and the first control valve 71 and the second control valve 72 can be opened selectively.

[0029] In addition, the first air inlet duct 61 is also connected to a cold air outlet duct 63, on which a third control valve 73 is provided, and the end of the cold air outlet duct 63 is the cold air outlet 1a, and the third control valve 73 and the first control valve 71 can be opened selectively; the second air inlet duct 62 is also connected to a hot air outlet duct 64, on which a fourth control valve 74 is provided, and the end of the hot air outlet duct 64 is the hot air outlet 1b, and the fourth control valve 74 and the second control valve 72 can be opened selectively.

[0030] Along the fluid flow path, the pipeline 1 is also provided with a filter element assembly and a booster pump 77 located upstream of the hot tank 2. The booster pump 77 is located upstream, downstream or in the middle of the filter element assembly. The pipeline 1 is also provided with a high-pressure switch 78 located between the filter element assembly and the hot tank 2 and a pressure vessel 10 located between the filter element assembly and the high-pressure switch 78. The pressure vessel 10 has an air bag inside, and a certain amount of air is pre-filled inside the air bag to ensure that the clean water can meet the water outlet pressure of 0.3Mpa when it is released from the pressure vessel 10; the high-pressure switch 78 is a pressure switch with a preset pressure range of 0.05-0.3Mpa, that is, when the pressure is detected to be lower than 0.05Mpa, the water making system starts to make water, and when the pressure is detected to be greater than or equal to 0.3Mpa, the water making system stops; the filter element assembly in this embodiment includes There are four filter elements, namely a first pre-filter element 91, a second pre-filter element 92, a reverse osmosis filter element 93 and a post-filter element 94. The first pre-filter element 91 can be a polypropylene melt-blown filter element or an ultrafiltration filter element; the second pre-filter element 92 can be a granular activated carbon filter element or a composite filter element of a carbon rod filter element and a folded PP filter element; the reverse osmosis filter element 93 can be an RO reverse osmosis membrane or a NF nanofiltration reverse osmosis membrane; the post-filter element 94 can be a carbon rod filter element, a granular activated carbon filter element or a composite filter element of a carbon rod and an ultrafiltration membrane; the above-mentioned booster pump 77 is located between the second pre-filter element 92 and the reverse osmosis filter element 93; the pipeline 1 is also provided with a sixth control valve 79 located between the first pre-filter element 91 and the second pre-filter element 92 and a ninth control valve 712 located downstream of the place where the heat exchanger 3 is connected to the pipeline 1.

[0031] The drinking water equipment also includes a first temperature detection unit 81 for detecting the outlet temperature of the heat exchanger 3, a second temperature detection unit 82 for detecting the temperature in the hot tank 2, and a controller, and the controller is electrically connected to the first temperature detection unit 81, the second temperature detection unit 82, the heating component 21, and the air pressure pump 76. In this embodiment, the speed of the air pressure pump 76 can be adjusted according to the PID algorithm to control the outlet water temperature. In addition, in this embodiment, the first temperature detection unit 81 and the second temperature detection unit 82 are both temperature sensors, and the first control valve 71, the second control valve 72, the third control valve 73, the fourth control valve 74, the fifth control valve 75, the sixth control valve 79, the seventh control valve 710, the eighth control valve 711, the ninth control valve 712 and the air outlet control valve 713 are all solenoid valves, and each solenoid valve is electrically connected to the controller.

[0032] The working process of the drinking water equipment in this embodiment is as follows:

[0033] 1. Boil water:

[0034] The second temperature detection unit 82 detects whether the water temperature in the hot tank 2 reaches the preset temperature. If yes, the heating component 21 is turned off; if no, the heating component 21 continues to be turned on;

[0035] When the seventh control valve 710 is opened, the fifth control valve 75, the air pressure pump 76, the third control valve 73, the second control valve 72 and the air outlet control valve 713 are all opened at the same time. At this time, the hot air in the vortex tube 5 is continuously sent to the heat exchanger 3. The hot air and the hot water in the heat exchanger 3 form a counter-flow, so the water flowing in the heat exchanger 3 can be quickly heated up, so that boiling water can be obtained.

[0036] However, in actual use, it is often found that the hot water has not been heated to the preset temperature and it is impossible to get hot water. If hot water is needed at this time, the vortex tube 4 can be started, that is, the fifth control valve 75 is opened, the air pressure pump 76 is opened, the second control valve 72 is opened, and the seventh control valve 710 is opened, so that the hot air from the vortex tube can reheat the water in the heat exchanger 3 to the preset temperature to meet the user's use;

[0037] 2. Discharging warm water: When warm water of a preset temperature (for example, 45°C) is required, the temperature is detected in real time by the first temperature detection unit 81 and the second temperature detection unit 82, and the fifth control valve 75, the air pressure pump 76, the first control valve 71 and the seventh control valve 710 are opened. If the temperature detected by the first temperature detection unit 81 is greater than the preset temperature, it is necessary to increase the speed of the air pressure pump 76 to obtain more cold air to cool the heat exchanger 3; conversely, if the temperature detected by the first temperature detection unit 81 is less than the preset temperature, it is necessary to reduce the speed of the air pressure pump 76 to reduce the cooling of the heat exchanger 3 by the cold air; if the temperature detected by the first temperature detection unit 81 is much lower than the preset temperature at this time, then the vortex tube 3 will be in heat exchange mode, that is, the fifth control valve 75, the air pressure pump 76, the third control valve 73, the second control valve 72, and the heating component 21 is started at the same time to heat through the above actions.

[0038] The "fluid communication" referred to in the present invention refers to the spatial position relationship between two parts or parts (hereinafter collectively referred to as the first part and the second part), that is, the fluid (gas, liquid or a mixture of the two) can flow from the first part along the flow path or / and be transported to the second part. The first part and the second part can be directly connected, or the first part and the second part can be indirectly connected through at least one third party. The third party can be a fluid channel such as a pipe, channel, duct, guide member, hole, groove, etc., or it can be a chamber allowing fluid to flow through, or a combination of the above.

Claims

1. A drinking water device, comprising: Pipeline (1); A hot tank (2) is arranged on the pipeline (1) and has a heating component (21) inside; The invention is characterized in that it also includes: A heat exchanger (3) is arranged in the hot tank (2) and is fluidly connected to the pipeline (1), or is arranged on the pipeline (1) and is located downstream of the hot tank (2). The inlet fluid of the heat exchanger (3) is fluidly connected to a hot gas channel (4a) and a cold gas channel (4b), and the hot gas channel (4a) and the cold gas channel (4b) can be opened selectively.

2. The drinking water equipment according to claim 1, characterized in that: The drinking water device comprises a vortex tube (5), wherein the vortex tube (5) has an air inlet (51), a cold end outlet (52) and a hot end outlet (53); the cold end outlet (52) of the vortex tube (5) is connected to a first air inlet pipe (61), and the hot end outlet (53) of the vortex tube (5) is connected to a second air inlet pipe (62); both the first air inlet pipe (61) and the second air inlet pipe (62) are connected to an inlet of a heat exchanger (3); the first air inlet pipe (61) forms the above-mentioned cold air channel (4b), and the second air inlet pipe (62) forms the above-mentioned hot air channel (4a).

3. The drinking water equipment according to claim 2, characterized in that: The first air intake pipe (61) is provided with a first control valve (71) for controlling its opening and closing, and the second air intake pipe (62) is provided with a second control valve (72) for controlling its opening and closing. The first control valve (71) and the second control valve (72) can be opened selectively.

4. The drinking water equipment according to claim 3, characterized in that: The first air inlet duct (61) is also connected to a cold air outlet pipe (63), and a third control valve (73) is provided on the cold air outlet pipe (63). The end of the cold air outlet pipe (63) is a cold air outlet (1a), and the third control valve (73) and the first control valve (71) can be opened selectively.

5. The drinking water equipment according to claim 4, characterized in that: The second air inlet duct (62) is also connected to a hot air outlet pipe (64), and a fourth control valve (74) is provided on the hot air outlet pipe (64). The end of the hot air outlet pipe (64) is a hot air outlet (1b), and the fourth control valve (74) and the second control valve (72) can be opened selectively.

6. The drinking water equipment according to claim 2, characterized in that: The heat exchanger (3) is connected to an exhaust pipe (65), and the end of the exhaust pipe (65) corresponds to an exhaust port (1c).

7. The drinking water equipment according to any one of claims 2 to 6, characterized in that: The air inlet (51) of the vortex tube (5) is connected to an air inlet pipe (66), and the air inlet pipe (66) is provided with a fifth control valve (75) and an air pressure pump (76).

8. The drinking water equipment according to claim 7, characterized in that: The drinking water device further comprises a first temperature detection unit (81) for detecting the outlet temperature of the heat exchanger (3), a second temperature detection unit (82) for detecting the temperature inside the hot tank (2), and a controller, wherein the controller is electrically connected to the first temperature detection unit (81), the second temperature detection unit (82), the heating component (21), and the air pressure pump (76).

9. The drinking water equipment according to any one of claims 1 to 6, characterized in that: Along the fluid flow path, the pipeline (1) is also provided with a filter element assembly (91, 92, 93, 94) located upstream of the hot tank (2) and a booster pump (77), and the booster pump (77) is located upstream, downstream or in the middle of the filter element assembly (91, 92, 93, 94).

10. The drinking water equipment according to claim 9, characterized in that: The pipeline (1) is also provided with a high-pressure switch (78) located between the filter element assembly (91, 92, 93, 94) and the hot tank (2).

11. The drinking water equipment according to claim 9, characterized in that: The drinking water equipment is a water purifier or a water dispenser.

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