Large-flow instant-heating water purifier

Abstract

The utility model discloses a high-flow instant-heating water purifier which comprises a filter element, purified water filtered by the filter element enters a hot tank for heating and heat preservation, and the heat preservation temperature of the hot tank is not higher than 90 DEG C; an instant heating body is further arranged on the water path behind the hot tank, and two water pumps which are connected in parallel and are different in flow are arranged between the hot tank and the instant heating body. According to the utility model, a plurality of working modes are provided according to different requirements; in most cases, high-flow hot water can be provided for users.

Description

Technical Field

[0001] The utility model belongs to the technical field of water purification equipment, in particular to an instant hot water purifier with a large flow rate. Background Art

[0002] There are generally two solutions for water purifiers that provide hot water. One is to use a hot tank for heating and insulation, so that the water in the hot tank is preheated to above 95°C and maintained at this temperature for a long time, ready to be provided to users at any time. The disadvantage of this method is that this part of the hot water will become the so-called thousand-boiled water, which is repeatedly in a boiling state, and is generally considered to be unhealthy. Another disadvantage is that when the hot water in the hot tank is used up, it takes a relatively long time to heat up, resulting in a poor user experience. Another solution is to use instant heating. When the user needs hot water, the water flowing through the instant heating body is temporarily heated. The disadvantage of this method is that the flow rate of hot water is limited by the power of the instant heating body. The power of the instant heating body of a household water purifier generally does not exceed 2100W. From this, it can be calculated that the upper limit of its hot water flow rate is 0.42L / min. This flow rate usually cannot meet the needs of users, and the user experience is not good enough. Summary of the invention

[0003] The purpose of the utility model is to overcome the above-mentioned defects and provide a large-flow instant hot water purifier.

[0004] To this end, the utility model adopts the following technical solution: a large-flow instant water purifier, including a filter element, and the clean water filtered by the filter element enters a hot tank for heating and insulation, characterized in that: the insulation temperature of the hot tank is not higher than 90°C; an instant heating body is also provided in the water path after the hot tank, and two parallel water pumps with different flow rates are provided between the hot tank and the instant heating body.

[0005] Furthermore, it also includes a clean water tank. The clean water filtered by the filter element can enter the hot tank or the clean water tank, that is, the clean water tank is connected in parallel with the hot tank; the water outlets of the hot tank and the clean water tank are combined into one path after passing through a flow regulating valve and enter the two parallel water pumps with different flow rates.

[0006] The two parallel-connected water pumps with different flow rates have a larger water pump flow rate of 3 L / min and a smaller water pump flow rate of 1 L / min.

[0007] The utility model has multiple working modes for different needs. When the user needs normal temperature water, the flow regulating valve is fully opened to the clean water tank end, the larger water pump and the smaller water pump in parallel work at the same time, and the filter element starts to make water, which can be provided to the user at the same time. Taking the water making system using 600G as an example, 3+1+1.6 can be achieved, about 5.6L / min normal temperature water.

[0008] When hot water is needed, use a hot tank for preheating. The hot tank contains water at 90°C or close to 90°C. The flow regulating valve is fully opened to the hot tank end. The larger water pump and the smaller water pump in parallel work at the same time, and then the instant heating body is used to compensate and heat it to above 95°C. Since the temperature rise required at this time is small, the flow rate through the instant heating body can be increased to 4L / min.

[0009] When hot water is used continuously, resulting in a lack of water in the hot water tank, the flow regulating valve is fully opened to the water tank end, and the smaller water pump in parallel works, and then the water is heated by the instant heating body. At this time, the hot water flow rate is 0.42L / min, which is the same as the prior art.

[0010] When the water temperature needs to be adjusted, the larger water pump and the smaller water pump in parallel work at the same time, that is, the heat body works or does not work depending on the situation, and the size of the flow regulating valve is adjusted, that is, the water output ratio from the hot tank end and the water tank end is controlled to achieve mixed water temperature adjustment in different proportions. The total flow rate can still reach 4L / min.

[0011] It can be seen that the utility model can provide a large flow of hot water to users in most cases. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the waterway of the utility model. DETAILED DESCRIPTION

[0013] See the attached drawings. The water circuit of this embodiment includes a raw water inlet end 1, which is pressurized by a booster pump 3 after passing through a pre-filter element 2, and enters an RO filter element for filtration. The wastewater generated by the RO filter element is discharged from a wastewater end 5, and the clean water enters a post-filter element 6 for further filtration and is divided into two paths, entering a clean water tank 7 and a hot tank 8 in parallel. Both the clean water tank 7 and the hot tank 8 have a liquid level sensor and a temperature sensor to grasp their internal conditions in real time. The hot tank also has an exhaust port to balance the internal and external pressures, and the water temperature is maintained at 87-90°C. The water outlets of the clean water tank 7 and the hot tank 8 are connected to a flow regulating valve 9, which can adjust the ratio of water drawn from the two; the rear end of the flow regulating valve 9 has a first pumping pump 10 and a second pumping pump 11 in parallel, wherein the flow rate of the first pumping pump 10 is 3L / min, and the flow rate of the second pumping pump 11 is 1L / min.

[0014] Through such configuration, the first pump 10 and the second pump 11 can pump water together or individually, and the water pumped can come from the clean water tank 7 or the hot tank 8, or from the clean water tank 7 and the hot tank 8 in different proportions. The above actions can be achieved by controlling the two pumps and the flow regulating valve. After the pumped water passes through the instant heating body 12, it is provided to the user through the faucet 13.

[0015] When the user needs water at room temperature, the flow regulating valve 9 is fully opened to the end of the clean water tank 7, and the first water pump 10 and the second water pump 11 work simultaneously to extract clean water from the clean water tank 7. The total flow rate can reach 4L / min, and the water produced by the filter element is sufficient to meet the user's needs.

[0016] When the user needs hot water, the flow regulating valve 9 is fully opened to the end of the hot tank 8, and the first water pump 10 and the second water pump 11 work simultaneously to extract hot water from the hot tank 8, with a total flow rate of up to 4L / min; at this time, the temperature of the extracted hot water is at 87-90°C, and then the instant heating body 12 is used to compensate and heat it to above 95°C, so as to provide users with sufficient hot water of sufficient temperature.

[0017] When hot water is used continuously, resulting in a lack of water in the hot tank, the flow regulating valve 9 is fully opened to the end of the water tank 7, and only the second water pump 11 works, and then heated by the instant heating body 12. At this time, only hot water of sufficient temperature can be provided at a small flow rate.

[0018] When the water temperature needs to be adjusted, the first water pump 10 and the second water pump 11 work simultaneously, and the flow regulating valve 9 is adjusted according to the real-time temperature data, so as to draw water from the clean water tank 7 and the hot tank 8 respectively in a certain proportion, and cooperate with the instant heating body 12 to provide users with sufficient water with suitable temperature.

Claims

1. A large flow instant hot water purifier, including a filter element, wherein the purified water filtered by the filter element enters a hot tank for heating and heat preservation, and is characterized in that: The insulation temperature of the hot tank is not higher than 90°C; an instant heating body is also arranged on the water path after the hot tank, and two parallel water pumps with different flow rates are arranged between the hot tank and the instant heating body.

2. The large flow instant hot water purifier according to claim 1, characterized in that: It also includes a clean water tank. The clean water filtered by the filter element can enter the hot tank or the clean water tank, that is, the clean water tank is connected in parallel with the hot tank; the water outlets of the hot tank and the clean water tank are combined into one path after passing through a flow regulating valve and enter the two parallel water pumps with different flow rates.

3. The large flow instant hot water purifier according to claim 1 or 2, characterized in that: The two parallel-connected water pumps with different flow rates have a larger water pump flow rate of 3 L / min and a smaller water pump flow rate of 1 L / min.

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