Heating water supply device

Abstract

The utility model relates to the technical field of constant-temperature water supply and discloses a heating water supply device which comprises a water tank, a water pump and a heater, the water pump is connected to the water tank and the heater, a water inlet of the water pump is connected to the water tank, a water outlet of the water pump is connected to a water inlet of the heater, and a water outlet of the heater is connected to the water tank. A U-shaped heating pipe is arranged in the heater, temperature sensors are arranged at the positions of a water inlet and a water outlet of the heater, the temperature sensors are connected to a temperature controller, and the temperature controller controls the heating power of the heater according to temperature information of the temperature sensors. The heater is arranged outside the water tank, temperature control is carried out on inlet water and outlet water of the water tank, a safety protection mechanism is provided for the heater, and more stable water temperature output is provided.

Description

Technical Field

[0001] This utility model relates to the field of constant temperature water supply technology, and in particular to a water heating device. Background Technology

[0002] Currently, water heating devices on the market mainly fall into two categories: instant water heaters and storage water heaters. Instant water heaters are characterized by rapid heating, but they can pose safety hazards under high water pressure. While storage water heaters are safe and stable, they require pre-storage and heating, and the heating method involves placing the heater inside a storage tank, which also presents certain safety risks.

[0003] To address the aforementioned issues, for instant water heaters, improvements can be made to the design of the internal heating elements, such as using nanoscale metal oxides as the heating element material, thereby enhancing heat conversion efficiency while ensuring high safety. Utility Model Content

[0004] The purpose of this invention is to solve the above problems by providing a water heating device that includes a heater installed outside the water tank to control the temperature of the water entering and leaving the tank, provides a safety protection mechanism for the heater, and provides a more stable water temperature output.

[0005] The technical solution adopted by this utility model is:

[0006] A water heating device is characterized by comprising a water tank, a water pump, and a heater. The water pump is connected to both the water tank and the heater. The inlet of the water pump is connected to the water tank, and the outlet of the water pump is connected to the inlet of the heater. The outlet of the heater is connected to the water tank. A U-shaped heating tube is installed inside the heater. Temperature sensors are installed at both the inlet and outlet of the heater. The temperature sensors are connected to a temperature controller, which controls the heating power of the heater based on the temperature information from the temperature sensors.

[0007] Furthermore, the U-shaped heating tube of the heater is covered with a heat insulation layer.

[0008] Furthermore, both the water pump and the heating element are connected in parallel to a three-phase power supply via contactors, and the contactors are controlled to open and close by the temperature controller.

[0009] Furthermore, the three-phase power supply is connected to the parallel circuit of the water pump and heater via a circuit breaker.

[0010] Furthermore, an overload protector is connected to both the water pump circuit and the heater circuit.

[0011] Furthermore, the U-shaped heating tube is made of 316L stainless steel, the temperature sensor is model PT100, and the temperature controller is model CEN-5000.

[0012] Furthermore, the outlet temperature of the heater is set to 40°C-70°C.

[0013] Furthermore, the temperature controller is powered by a three-phase power supply.

[0014] The beneficial effects of this utility model are:

[0015] (1) The heating efficiency is significantly improved, and the ideal water temperature can be reached in a short time, saving waiting time;

[0016] (2) Multiple safety protection measures are adopted, which greatly reduces the risk of use and allows users to use it with peace of mind;

[0017] (3) Through precise temperature control and energy-saving design, unnecessary energy consumption is reduced, which is beneficial to environmental protection;

[0018] (4) It has a compact structure, is easy to install and maintain, and is compatible with a variety of water source interfaces, making it convenient for promotion and application. Attached Figure Description

[0019] Appendix Figure 1 This is a schematic diagram of the circuit principle of this utility model;

[0020] The labels in the attached diagram are as follows:

[0021] 1. Water tank; 2. Water pump;

[0022] 3. Heater; 4. U-shaped heating element;

[0023] 5. Temperature sensor; 6. Temperature controller;

[0024] 7. Contactor; 8. Three-phase power supply;

[0025] 9. Circuit breaker; 10. Overload protector. Detailed Implementation

[0026] The following detailed description of a specific embodiment of a water heating and supply device according to the present invention, with reference to the accompanying drawings, is provided in detail.

[0027] See appendix Figure 1 The heating water supply device of this patent includes a water tank 1, a water pump 2, and a heater 3. The water pump 2 is connected to the water tank 1 and the heater 3. The inlet of the water pump 2 is connected to the water tank 1, and the outlet of the water pump 2 is connected to the inlet of the heater 3. The outlet of the heater 3 is connected to the water tank 1. A U-shaped heating tube 4 is installed inside the heater 3. The U-shaped heating tube 4 is covered with a heat insulation layer. Temperature sensors 5 are installed at both the inlet and outlet of the heater 3. The temperature sensors 5 are connected to a temperature controller 6. The temperature controller 6 controls the heating power of the heater 3 according to the temperature information of the temperature sensors 5.

[0028] Both water pump 2 and heater 3 are connected in parallel to a three-phase power supply 8 via contactor 7, which is controlled by a temperature controller 6. The three-phase power supply 8 is connected to the parallel circuit of water pump 2 and heater 3 via a circuit breaker 9. Each circuit of water pump 2 and heater 3 is connected to an overload protector 10. The temperature controller 6 is also powered by the three-phase power supply 8 through a power circuit.

[0029] In terms of component selection for this patent, the heating module is made of a U-shaped tube made of 316L stainless steel, which has strong corrosion resistance and long service life; the temperature sensor 5 is selected as the PT100 model, which has high measurement accuracy and fast response speed; and the temperature controller 6 is selected as the CEN-5000.

[0030] The working process and main principle are as follows: When the user turns on the water outlet switch, cold water enters the heater 3 through the inlet pipe and rapidly heats up in the U-shaped tube due to the heat generated by the heating module. Simultaneously, the temperature sensor 5 detects the water temperature change and transmits it to the temperature controller 6 via an analog signal. The temperature controller 6 calculates the deviation based on the preset target temperature value and adjusts the working state of the heating module to maintain the water temperature within a set range. The heated water then flows out through the outlet pipe for the user's use.

[0031] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A water heating and supply device, characterized in that: The system includes a water tank, a water pump, and a heater. The water pump is connected to both the water tank and the heater. The water pump's inlet is connected to the water tank, and its outlet is connected to the heater's inlet. The heater's outlet is connected to the water tank. A U-shaped heating element is installed inside the heater. Temperature sensors are installed at both the heater's inlet and outlet, and these sensors are connected to a temperature controller. The temperature controller controls the heater's heating power based on the temperature information from the sensors. Both the water pump and the heating element are connected in parallel to a three-phase power supply via contactors. The contactors are controlled to open and close by the temperature controller. The three-phase power supply is connected to the parallel circuit of the water pump and heater via a circuit breaker. The temperature controller is powered by the three-phase power supply.

2. A heated water supply as claimed in claim 1, wherein: The U-shaped heating tube of the heater is covered with an insulation layer.

3. The water heating and supply device according to claim 1, characterized in that: An overload protector is connected to both the water pump circuit and the heater circuit.

4. A heated water supply apparatus as claimed in any one of claims 1 to 3, wherein: The U-shaped heating tube is made of 316L stainless steel, the temperature sensor is model PT100, and the temperature controller is model CEN-5000.

5. A heated water supply apparatus as claimed in any one of claims 1 to 3, wherein: The outlet temperature of the heater is set to 40°C-70°C.

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