Water purifier with stable hot water outlet temperature

Abstract

The utility model provides a water purifier with stable hot water outlet temperature, the water purifier comprises a raw water tank (1), a booster pump (2), a filter system, a reversing valve (4), a purified water tank (5), a hot liner (7) and a water outlet faucet which are connected in sequence, the hot liner (7) is provided with a cold water inlet and a hot water outlet, the hot water outlet is connected to the water outlet faucet through a hot water outlet pipeline, and a linear thick film heating body (8) is arranged on the hot water outlet pipeline. According to the water purifier disclosed by the utility model, hot water is reheated by the thick film heating body after flowing out of the hot container water outlet 8, and the water outlet temperature of the heating body is ensured through the first NTC temperature sensor 81 and the second NTC temperature sensor 82 on the thick film heating body, so that the temperature of the hot water output by the closure gap of the water purifier is more stable.

Description

Technical Field

[0001] This utility model relates to water purifiers, and more particularly to a water purifier with a more stable hot water output temperature. Background Technology

[0002] Existing water purifiers typically use a heating element to heat and store purified water. However, due to the limited heat retention capacity of the heating element, the temperature of the hot water flowing out of the heating element is unstable. When the hot water is stored in the heating element for a long time, the water temperature drops significantly, resulting in a poor user experience. Utility Model Content

[0003] The purpose of this utility model is to overcome the defects of the existing technology and provide a water purifier with stable hot water output temperature. The water purifier includes a raw water tank 1, a booster pump 2, a filtration system, a reversing valve 4, a purified water tank 5, a heating element 7, and a water faucet connected in sequence. The heating element 7 has a cold water inlet and a hot water outlet. The hot water outlet is connected to the water faucet through a hot water outlet pipe. The feature is that a linear thick film heating element 8 is provided on the hot water outlet pipe.

[0004] In this invention, according to a preferred embodiment, a thick-film heating element is installed outside the hot water outlet pipe to form a linear thick-film heating element. The linear thick-film heating element 8 has an inlet end and an outlet end. An inlet water temperature measuring module 81 is installed at the inlet end, and an outlet water temperature measuring module 82 is installed at the outlet end. The linear thick-film heating element 8 has both an automatic temperature control device and a manual temperature control device.

[0005] The linear thick film heating element 8 has the advantages of more uniform heating, less scaling and less cracking after long-term use, and thus a longer service life, which is superior to conventional quartz glass heating elements or stainless steel heating elements.

[0006] Linear thick-film heating elements are commercially available products, and those skilled in the art have mastered the technology of setting temperature control devices for heating elements.

[0007] According to a preferred embodiment, the inlet water temperature measurement module 81 and the outlet water temperature measurement module 82 are NTC temperature sensors.

[0008] Preferably, the raw water tank 1 has a raw water tank inlet and a raw water tank outlet. The raw water tank inlet is connected to the municipal water supply port through a tap water pipeline. An inlet solenoid valve 11 and a leakage protection device 12 are installed in the tap water pipeline. The raw water tank 1 is also equipped with a high water level sensor 13, a low water level sensor 14, and a raw water TDS meter 15 installed at the bottom of the water phase. The raw water tank outlet is connected to a booster pump 2 through a pipeline.

[0009] According to a preferred embodiment, the filtration system includes a primary filter element 31 and a secondary filter element 32 connected in series. The outlet of the secondary filter element 32 is connected to the purified water tank 5 through a filtered water pipeline, and the concentrate end of the secondary filter element 32 is connected to the concentrate tank 6 through a concentrate pipeline. The concentrate pipeline is equipped with a combined flushing valve 61 and a concentrate solenoid valve 62, and the concentrate tank 6 is equipped with a concentrate water level detection device 63.

[0010] According to a preferred embodiment, the water purification tank 5 is provided with a water purification tank vent 51 and a UV sterilization device 52. The water purification tank 5 is also provided with a water purification tank high water level sensor 53, a water purification tank low water level sensor 54, and a water purification TDS meter 55 installed at the bottom of the water purification tank. The outlet of the raw water tank is connected to the booster pump 2 through a pipeline.

[0011] According to a preferred embodiment, the water tank 5 has a first water outlet and a second water outlet. The first water outlet is connected to the linear thick film heater 8 through a normal temperature water purification pipeline, and the second water outlet is connected to the heating tank 7 through a water purification replenishment pipeline. A water replenishment valve 91 is provided on the water purification replenishment pipeline.

[0012] In this utility model, the heating element 7 is equipped with a high water level sensor 73, a low water level sensor 74, and a thermometer 72. The heating element is also equipped with an exhaust port, which is connected to the purified water tank 5 through an exhaust pipe. The heating element 7 has a water outlet, which is connected to the linear thick film heating element 8 through a purified water hot water pipeline. A purified water hot water pump 92 is provided on the purified water hot water pipeline.

[0013] Those skilled in the art can appropriately increase or decrease the number of ports in the water purifier as needed. For example, a drainage branch can be set downstream of the concentrated water solenoid valve 62, and the end of the drainage branch is a drain outlet.

[0014] In this water purifier, hot water flows out of the heating element 8 and is reheated by the thick film heating element. The first NTC temperature sensor 81 and the second NTC temperature sensor 82 on the thick film heating element ensure the outlet water temperature, so that the hot water temperature output from the water purifier is stable. Attached Figure Description

[0015] Figure 1 This is a diagram of the water circuit structure of the water purifier of this utility model. Detailed Implementation

[0016] The following embodiments are used to explain the technical solution of this utility model in a non-limiting manner.

[0017] Example 1

[0018] like Figure 1The water purifier shown includes a raw water tank 1, a booster pump 2, a primary filter element 31 and a secondary filter element 32 connected in series, a reversing valve 4, a purified water tank 5, a concentrated water tank 6, a heating element 7, a linear thick film heater 8, and a water outlet faucet.

[0019] The raw water tank 1 is connected to the municipal water supply port via a tap water pipeline and is equipped with an inlet solenoid valve 11 and a leakage protection device 12. When a leak occurs in the raw water tank 1 or the tap water pipeline, the absorbent cotton in the leakage protection device 12 expands upon contact with water, pushing the inlet solenoid valve 11 to cut off the tap water supply during the expansion process. The inlet solenoid valve 11 is controlled to open to replenish water to the tank when needed by the water purifier, and cuts off the tap water supply when the tank is full to prevent water hammer from damaging the water purifier tank. The raw water tank 1 is also equipped with a high water level sensor 13, a low water level sensor 14, and a raw water TDS meter 15 located at the bottom of the water phase. The outlet of the raw water tank is connected to the booster pump 2 via a pipeline. After tap water enters the raw water tank 1, the water level sensor fixed on the tank controls whether to replenish water. When the water level is high, the inlet solenoid valve 11 is closed; when the water level is low, the inlet solenoid valve 11 is open. In addition, the filter screen at the bottom of the water tank can prevent scale buildup from occurring in areas with poor water quality after long-term use.

[0020] The raw water tank 1 is also equipped with a drainage branch for customers to drain the cleaning water after cleaning the tank or to drain the tap water in the tank when it is not in use for a long time. Customers can also use it in environments without tap water by adding water through a kettle.

[0021] Tap water is pressurized by booster pump 2 and enters primary filter element 31 and secondary filter element 32 to remove large particles and most of the residual chlorine. The resulting concentrated water is discharged from the concentrated water end of secondary filter element 32. The amount of concentrated water discharged can be controlled by a combination flushing valve 61 and a concentrated water solenoid valve 62. The concentrated water is discharged into concentrated water tank 6 or used to set up concentrated water branch lines to rinse products, realizing the reuse of concentrated water. A concentrated water level detection device 63 is installed on concentrated water tank 6.

[0022] The water outlet of the secondary filter element 32, after passing through the reversing valve 4, is either returned to the booster pump 2 via a one-way valve, or connected to the inlet of the water purification tank 5. The water purification tank 5 is equipped with a water purification tank vent 51 and a UV sterilization device 52. It also includes a high water level sensor 53, a low water level sensor 54, and a purified water TDS meter 55 located at the bottom of the tank. The water purification tank 5 has two outlets: one is where the ambient temperature water pump 93 pumps water from the tank through a thick-film heater to the outlet; the other is where the water is sent to the inlet of the heating element 7 via the water supply valve 91.

[0023] The heating element 7 is equipped with a high water level sensor 73, a low water level sensor 74, and a thermometer 72. The heating element also has an exhaust port to prevent excessive internal pressure. The outlet of the heating element 7 is connected to the linear thick film heating element 8 through a purified water / hot water pipeline and is equipped with a purified water / hot water pump 92.

[0024] Water from the purified water tank flows into the heating element through the water supply valve 91, and the water from the heating element outlet 8 is reheated by the thick-film heating element. The first NTC temperature sensor 81 and the second NTC temperature sensor 82 on the thick-film heating element ensure the temperature and speed of the water outlet. Through this reheating method, the temperature of the hot water in Longkou is kept stable.

Claims

1. A water purifier with stable hot water outlet temperature, the water purifier comprising, in sequence, a raw water tank (1), a booster pump (2), a filtration system, a reversing valve (4), a purified water tank (5), a heating element (7), and a water outlet faucet, wherein the heating element (7) has a cold water inlet and a hot water outlet, and the hot water outlet is connected to the water outlet faucet via a hot water outlet pipe, characterized in that... A linear thick-film heating element (8) is installed on the hot water outlet pipe.

2. The water purifier according to claim 1, characterized in that... The linear thick film heating element (8) has an inlet end and an outlet end, with an inlet water temperature measuring module (81) provided at the inlet end and an outlet water temperature measuring module (82) provided at the outlet end.

3. The water purifier according to claim 2, characterized in that... The inlet water temperature measurement module (81) and the outlet water temperature measurement module (82) are NTC temperature sensors.

4. The water purifier according to claim 1, characterized in that... The raw water tank (1) has a raw water tank inlet and a raw water tank outlet. The raw water tank inlet is connected to the municipal water supply port through a tap water pipeline. An inlet solenoid valve (11) and a leakage protection (12) are installed in the tap water pipeline. The raw water tank (1) is also equipped with a high water level sensor (13), a low water level sensor (14), and a raw water TDS meter (15) installed at the bottom of the water phase. The raw water tank outlet is connected to a booster pump (2) through a pipeline.

5. The water purifier according to claim 1, characterized in that... The filtration system includes a primary filter element (31) and a secondary filter element (32) connected in series. The outlet of the secondary filter element (32) is connected to the purified water tank (5) through a filtered water pipeline, and the concentrate end of the secondary filter element (32) is connected to the concentrate tank (6) through a concentrate pipeline. The concentrate pipeline is equipped with a combined flushing valve (61) and a concentrate solenoid valve (62). The concentrate tank (6) is equipped with a concentrate water level detection device (63).

6. The water purifier according to claim 1, characterized in that... The water tank (5) is equipped with a water tank exhaust port (51) and a UV sterilization device (52). The water tank (5) is also equipped with a water tank high water level sensor (53), a water tank low water level sensor (54) and a water purification TDS meter (55) installed at the bottom of the water tank. The outlet of the raw water tank is connected to the booster pump (2) through a pipeline.

7. The water purifier according to claim 1, characterized in that... The water tank (5) has a first outlet and a second outlet. The first outlet is connected to the linear thick film heating element (8) via a normal temperature water supply pipeline. The second outlet is connected to the heating element (7) via a water supply pipeline. A water supply valve (91) is provided on the water supply pipeline.

8. The water purifier according to claim 1, characterized in that... The heating element (7) is equipped with a high water level sensor (73), a low water level sensor (74), and a thermometer (72). The heating element is also equipped with an exhaust port, which is connected to the purified water tank (5) through an exhaust pipe. The heating element (7) has a water outlet, which is connected to the linear thick film heating element (8) through a purified water hot water pipeline. A purified water hot water pump (92) is provided on the purified water hot water pipeline.

9. The water purifier according to claim 1, characterized in that... A drainage branch is provided downstream of the concentrated water solenoid valve (62), and the end of the drainage branch is a drain outlet.

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