A quick heating type pure water machine

Abstract

A rapid-heating pure water machine includes a filtration system and a water tank. The filtration system includes a pre-filter, a post-filter, and an RO filter. The water tank inlet is connected to the pure water outlet of the post-filter via an inlet pipe. The water tank outlet is connected to a faucet via an outlet pipe. The outlet pipe is sequentially equipped with a first one-way valve, a water pump, a rapid-heating heating element, and a hot water outlet solenoid valve. A preheating return water pipe is connected between the rapid-heating heating element and the hot water outlet solenoid valve. The other end of the preheating return water pipe is connected to the water tank inlet. The preheating return water pipe is equipped with a preheating return water solenoid valve. During preheating, the preheating return water solenoid valve is opened and the hot water outlet solenoid valve is closed. The water pump and the rapid-heating heating element work to circulate and preheat the pure water in the water tank. This utility model has a simple and reasonable structure. Without increasing the power of the equipment, it effectively increases the hot water outlet flow rate, thus achieving a good balance between the continuity and flow rate of hot water.

Description

Technical Field

[0001] This utility model belongs to the field of pure water machine technology and relates to a fast-heating pure water machine. Background Technology

[0002] The advantage of water purifiers with instant heating function on the market is that they can maintain a continuous supply of hot water. However, because the heating element is located on the outlet pipe of the water tank, and the water tank itself does not have a heating element, the water temperature in the tank is at room temperature, which is relatively low. Due to power limitations, the hot water flow rate is relatively low, making it unsuitable for applications requiring a high flow rate. To increase the flow rate, the power must be increased, but high-power equipment requires larger wiring capacity to ensure stable operation, which is not only costly but also consumes more energy.

[0003] Therefore, it is necessary to design a pure water machine with a reasonable structure and a large hot water flow rate. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a fast-heating pure water machine with a simple and reasonable structure and a high hot water flow rate, which effectively increases the hot water output flow rate without increasing the power.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a fast-heating pure water machine, including a filtration system, an inlet solenoid valve, a booster pump, a water tank, a pure water outlet solenoid valve, and a hot water outlet solenoid valve. The filtration system includes a pre-filter, a post-filter, and an RO filter. The inlet of the water tank is connected to the pure water outlet of the post-filter through an inlet pipe, and the outlet of the water tank is connected to a faucet through an outlet pipe. A water pump, a fast-heating heating element, and a hot water outlet are sequentially arranged on the outlet pipe. The water outlet solenoid valve is characterized in that: a first one-way valve is provided between the water pump and the water outlet of the water tank; a preheating return water pipeline is connected to the water outlet pipeline between the rapid heating element and the hot water outlet solenoid valve; the other end of the preheating return water pipeline is connected to the water inlet of the water tank; a preheating return water solenoid valve is installed on the preheating return water pipeline; during normal preheating, the preheating return water solenoid valve is opened and the hot water outlet solenoid valve is closed, and the water pump and the rapid heating element work to circulate and preheat the pure water in the water tank.

[0006] As an improvement, the pre-filter and post-filter are integrated into one unit. The inlet of the pre-filter is connected to the tap water pipe through an inlet three-way ball valve, and the outlet of the pre-filter is connected to the inlet of the RO filter. The inlet of the post-filter is connected to the pure water outlet of the RO filter. The pure water outlet of the post-filter is divided into two paths: one path is connected to the water tap through a pure water outlet pipe, and the other path is connected to the inlet of the water tank through a water tank inlet pipe.

[0007] Furthermore, a pure water outlet solenoid valve is installed on the pure water outlet pipeline, and a second check valve and a water tank inlet solenoid valve are provided on the water tank inlet pipeline.

[0008] Furthermore, the water tank is also equipped with an exhaust port, which is connected to the concentrate outlet pipe of the RO filter element through a discharge pipe. The discharge pipe is equipped with a third check valve and a normally open valve.

[0009] Furthermore, a booster pump, a water quality analyzer, and an inlet solenoid valve are installed on the pipeline between the outlet of the pre-filter and the inlet of the RO filter.

[0010] Furthermore, a fourth check valve and a water quality tester are installed on the pipeline between the inlet of the post-filter and the pure water outlet of the RO filter.

[0011] Finally, the water tank is a stainless steel tank, and a level float switch and a temperature probe are installed inside the tank.

[0012] Compared with existing technologies, the advantages of this invention are as follows: By adding a preheating return water pipeline, during preheating, the preheating return water solenoid valve is opened and the hot water outlet solenoid valve is closed. The water pump and the rapid heating element operate, and the water in the tank, after being heated, flows back to the tank through the preheating return water pipeline, achieving circulating preheating. This maintains a certain temperature for the pure water in the tank. When discharging, the high initial temperature of the pure water in the tank significantly increases the outlet flow rate. This invention has a simple and reasonable structure, effectively improving the hot water outlet flow rate without increasing equipment power, thus achieving a good balance between the continuity and flow rate of hot water output. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0014] Figure 2 This is a diagram of the quick-heating water circuit according to an embodiment of the present utility model. Detailed Implementation

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0016] like Figure 1 , 2As shown, a fast-heating pure water machine includes a filtration system, an inlet solenoid valve 10, a booster pump 12, a water tank 1, a pure water outlet solenoid valve 21, and a hot water outlet solenoid valve 5. The filtration system includes a pre-filter, a post-filter, and an RO filter 2. The inlet of the water tank 1 is connected to the pure water outlet of the post-filter via an inlet pipe, and the outlet of the water tank 1 is connected to a faucet 22 via an outlet pipe. A first check valve 3 and a water pump are sequentially installed on the outlet pipe. 7. A preheating return water pipe is connected to the outlet pipe between the rapid heating element 6 and the hot water outlet solenoid valve 5. The other end of the preheating return water pipe is connected to the inlet of the water tank 1. A preheating return water solenoid valve 4 is installed on the preheating return water pipe. During normal preheating, the preheating return water solenoid valve 4 is opened and the hot water outlet solenoid valve 5 is closed. The water pump 7 and the rapid heating element 6 work to circulate and preheat the water in the water tank 1.

[0017] The specific structure is as follows: the pre-filter and post-filter are integrated into a single unit A. The inlet of the pre-filter is connected to the tap water pipe 24 via an inlet three-way ball valve 23, and the outlet of the pre-filter is connected to the inlet of the RO filter 2. The inlet of the post-filter is connected to the pure water outlet of the RO filter 2. The pure water outlet of the post-filter is divided into two paths: one path is connected to the tap 22 via a pure water outlet pipe, and the other path is connected to the inlet of the water tank 1 via a water tank inlet pipe. A pure water outlet solenoid valve 21 is installed on the pure water outlet pipe, and a second check valve 17 and a water tank inlet solenoid valve 18 are installed on the water tank inlet pipe. A booster pump 12, a water quality analyzer 11, and an inlet solenoid valve 10 are installed on the pipe between the outlet of the pre-filter and the inlet of the RO filter 2. A fourth check valve 13 and a water quality analyzer 14 are installed on the pipeline between the inlet of the post-filter and the pure water outlet of the RO filter 2. For cleaning the RO filter 2, a return water pipeline is also provided. One end of the return water pipeline is connected to the pipeline between the booster pump 12 and the water quality analyzer 11, and the other end is connected to the pipeline between the water quality analyzer 14 and the post-filter. A fifth check valve 19 and a return water solenoid valve 20 are installed on the return water pipeline.

[0018] Water tank 1 is a stainless steel water tank, and a level float switch 8 and a temperature probe 9 are installed inside water tank 1. Water tank 1 is also equipped with an exhaust port, which is connected to the concentrate outlet pipe of RO filter element 2 through a discharge pipe. The discharge pipe is equipped with a third check valve 15 and a normally open valve 16.

[0019] During normal preheating, the preheating return water solenoid valve 4 is opened and the hot water outlet solenoid valve 5 is closed. The water pump 7 and the rapid heating element 6 work. The pure water in water tank 1 is heated and then flows back to water tank 1 from the preheating return water pipe to achieve circulating preheating, so that the pure water in water tank 1 maintains a certain temperature. When draining water, the preheating return water solenoid valve 4 is closed and the hot water outlet solenoid valve 5 is opened. The water pump 7 and the rapid heating element 6 work. Since the initial temperature of the pure water in water tank 1 is relatively high, it can greatly increase the water flow rate, so that the continuity and flow rate of hot water are well balanced.

[0020] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A rapid-heating pure water machine, comprising a filtration system, an inlet solenoid valve, a booster pump, a water tank, a pure water outlet solenoid valve, and a hot water outlet solenoid valve. The filtration system includes a pre-filter, a post-filter, and an RO filter. The inlet of the water tank is connected to the pure water outlet of the post-filter via an inlet pipe, and the outlet of the water tank is connected to a faucet via an outlet pipe. A water pump, a rapid-heating heating element, and a hot water outlet solenoid valve are sequentially installed on the outlet pipe. The machine is characterized by: A first one-way valve is provided between the water pump and the outlet of the water tank. A preheating return water pipe is connected to the outlet pipe between the rapid heating element and the hot water outlet solenoid valve. The other end of the preheating return water pipe is connected to the inlet of the water tank. A preheating return water solenoid valve is installed on the preheating return water pipe. During preheating, the preheating return water solenoid valve is opened and the hot water outlet solenoid valve is closed. The water pump and the rapid heating element work to circulate and preheat the pure water in the water tank.

2. The rapid heating pure water machine according to claim 1, characterized in that: The pre-filter and post-filter are integrated into one unit. The inlet of the pre-filter is connected to the tap water pipe through an inlet three-way ball valve, and the outlet of the pre-filter is connected to the inlet of the RO filter. The inlet of the post-filter is connected to the pure water outlet of the RO filter. The pure water outlet of the post-filter is divided into two paths: one path is connected to the water tap through a pure water outlet pipe, and the other path is connected to the inlet of the water tank through a water tank inlet pipe.

3. The rapid heating pure water machine according to claim 2, characterized in that: A pure water outlet solenoid valve is installed on the pure water outlet pipeline, and a second check valve and a water tank inlet solenoid valve are provided on the water tank inlet pipeline.

4. The rapid heating pure water machine according to claim 1, characterized in that: The water tank is also equipped with an exhaust port, which is connected to the concentrate outlet pipe of the RO filter element through a discharge pipe. The discharge pipe is equipped with a third check valve and a normally open valve.

5. The rapid heating pure water machine according to claim 2, characterized in that: A booster pump, a water quality analyzer, and an inlet solenoid valve are installed on the pipeline between the outlet of the pre-filter and the inlet of the RO filter.

6. The rapid heating pure water machine according to claim 2, characterized in that: A fourth check valve and a water quality tester are installed on the pipeline between the inlet of the post-filter and the pure water outlet of the RO filter.

7. The rapid heating pure water machine according to any one of claims 1 to 6, characterized in that: The water tank is a stainless steel tank, and a level float switch and a temperature probe are installed inside the tank.

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