Energy-saving double-temperature water boiler

Abstract

The utility model discloses an energy-saving double-temperature water boiler, and relates to water heating equipment. Comprising a boiled water tank and a heat exchange assembly, the heat exchange assembly is provided with a boiled water inlet, a cold water inlet, a warm water outlet and a warm water inlet, the cold water inlet is communicated with a cold water source, the boiled water inlet is communicated with the boiled water tank, the boiled water tank inputs boiled water into the heat exchange assembly, and the cold water source inputs cold water into the heat exchange assembly. The cold water and the boiled water are subjected to heat exchange in the heat exchange assembly, the warm water inlet is communicated with the boiled water tank, the cold water subjected to heat exchange is input into the boiled water tank through the warm water inlet, and a boiled water outlet is formed in the boiled water tank. The water heater has the advantages that heat is fully utilized, heating efficiency is improved, energy is saved, meanwhile, a user can take boiled water and warm water according to needs, and the application range is wider.

Description

Technical Field

[0001] The utility model relates to a water heating device, in particular to an energy-saving double-temperature water dispenser. Background Art

[0002] A water dispenser is a device used to provide hot water in public places such as stations. Generally, it has a water storage tank and uses an electric heating tube to heat the water in the water storage tank. Generally, for a water dispenser, whether it has one or more water outlets, the water outlet temperature is the same. For example, in a water dispenser in the related art, based on the principle of a heat exchanger, the hot water in the pipeline is used to preheat the warm water in the water storage tank, thereby maintaining the temperature of the water in the water storage tank. When heating later, the heating time can be saved and energy can be conserved, and the time required to heat the water into boiling water becomes shorter. In actual use, since only hot water of the same temperature can be discharged, it is often necessary to mix in cold water before use, which is inconvenient in actual use. Content of the Utility Model

[0003] In order to overcome the deficiencies of the prior art, the utility model provides an energy-saving double-temperature water dispenser.

[0004] The utility model is realized by adopting the following technical scheme: An energy-saving double-temperature water dispenser includes a boiling water tank and a heat exchange assembly. The heat exchange assembly is provided with a boiling water inlet, a cold water inlet, a warm water outlet, and a warm water inlet. The cold water inlet is connected to a cold water source, the boiling water inlet is connected to the boiling water tank, the boiling water tank inputs boiling water into the heat exchange assembly, the cold water source inputs cold water into the heat exchange assembly, the cold water and the boiling water exchange heat in the heat exchange assembly, the warm water inlet is connected to the boiling water tank, and the heat-exchanged cold water is input into the boiling water tank through the warm water inlet. The boiling water tank is provided with a boiling water outlet.

[0005] The heat exchange assembly includes a heat exchange coil and a water flow branch pipe. The boiling water inlet and the cold water inlet are arranged at one end of the heat exchange coil, the water flow branch pipe and the warm water outlet are arranged at the other end of the heat exchange coil, and the water flow branch pipe connects the heat exchange coil and the boiling water tank.

[0006] The heat exchange coil includes an outer layer pipe and an inner layer pipe. A water flow channel is formed between the outer layer pipe and the inner layer pipe. The cold water inlet is arranged on and communicated with the inner layer pipe, and the boiling water inlet is arranged on the outer layer pipe and communicated with the water flow channel;

[0007] The warm water outlet is arranged on the outer layer pipe and communicated with the water flow channel, and the water flow branch pipe is arranged on the inner layer pipe and communicated with the inner layer pipe.

[0008] Valves are respectively arranged at the boiling water outlet and the warm water outlet.

[0009] The boiling water tank and the heat exchange component are fixed inside the housing. The housing is provided with a boiling water hole and a warm water hole. The boiling water outlet extends out from the boiling water hole, and the warm water outlet extends out from the warm water hole. The valve is fixed on the housing.

[0010] The housing is provided with a water inlet hole, and one end of the heat exchange component extends out of the housing through the water inlet hole.

[0011] Compared with the prior art, when the utility model is in use, it is necessary to first heat the water in the primary boiling water tank to form boiling water. The boiling water can enter the water flow channel and act as the heat exchange medium for the heat exchange coil. Cold water enters from the inner layer pipe and fully contacts the boiling water in the water flow channel, so that the temperature of the boiling water in the water flow channel decreases to form warm water, and finally is discharged from the warm water outlet as direct drinking water. The boiling water can be directly discharged from the boiling water outlet for users who need boiling water to directly take, and also acts as a heat exchange medium to participate in heat exchange to be made into warm water. The cold water after heat exchange is preheated to form warm water before being sent into the boiling water tank, so that the heat is fully utilized, the heating efficiency is improved, and energy is saved. Users can also take boiling water and warm water as needed, and the application range is wider. Description of the Drawings

[0012] Figure 1 is a schematic structural diagram of the energy-saving double warm water dispenser in the utility model;

[0013] Figure 2 is a schematic structural diagram of the heat exchange component of the energy-saving double warm water dispenser in the utility model;

[0014] Figure 3 is a schematic cross-sectional structural diagram of the heat exchange coil in the utility model;

[0015] In the figure: 1. Housing; 2. Boiling water tank; 21. Boiling water outlet; 22. Warm water inlet; 3. Valve; 4. Heat exchange component; 41. Heat exchange coil; 411. Outer layer pipe; 412. Inner layer pipe; 413. Water flow channel; 42. Water flow branch pipe; 43. Cold water inlet; 44. Boiling water inlet; 45. Warm water outlet. Detailed Embodiments

[0016] Next, in combination with the drawings and specific embodiments, the present utility model will be further described. It should be noted that, on the premise of no conflict, the following-described embodiments or technical features can be arbitrarily combined with each other to form new embodiments.

[0017] Refer to Figures 1-3, an energy-saving double-temperature water dispenser, at least including a housing 1. On the front of the housing 1, there are opened a boiling water hole and a warm water hole for installing a valve 3, and on the side of the housing 1, there is opened a water inlet hole. The boiling water tank 2 is fixed inside the housing 1. The boiling water tank 2 has a boiling water outlet 21 opened upward, and the boiling water outlet 21 extends out from the boiling water hole. One of the valves 3 is installed at the boiling water outlet 21 to close or open the boiling water outlet 21. The heat exchange component 4 is also installed inside the housing 1 and is communicated with the boiling water tank 2. One end of the heat exchange component 4 is inserted into the water inlet hole and extends out from the water inlet hole.

[0018] The heat exchange component 4 includes a heat exchange coil 41 and a water flow branch pipe 42. The heat exchange coil 41 is a double-layer pipe, that is, the heat exchange coil 41 includes an outer layer pipe 411 and an inner layer pipe 412. The diameter of the outer layer pipe 411 is larger than that of the inner layer pipe 412, and the inner layer pipe 412 needs to be sleeved inside the outer layer pipe 411 to form a double-layer pipe structure. The gap between the inner layer pipe 412 and the outer layer pipe 411 is a water flow channel 413. The inner layer pipe 412 is a cold water pipe, and the part extending out of the water inlet hole is the inner layer pipe 412. The part of the inner layer pipe 412 extending out of the water inlet hole is the cold water inlet 43. The end of the outer layer pipe 411 needs to be sealed with the outer wall of the inner layer pipe 412 to prevent the outer layer pipe 411 from leaking water. The inner layer pipe 412 is connected to a cold water source, that is, the inner layer pipe 412 is a channel for cold water. An opening for boiling water inlet 44 needs to be opened on the outer wall of the outer layer pipe 411. One end of the opening for boiling water inlet 44 is communicated with the boiling water tank 2, and the other end of the opening for boiling water inlet 44 needs to be communicated with the water flow channel 413. So that the boiling water in the boiling water tank 2 can flow into the water flow channel 413 through the boiling water outlet 21 to exchange heat with the cold water in the inner layer pipe 412. After heat exchange, the temperature of the boiling water drops to warm water, while the cold water in the inner layer pipe 412 rises in temperature to form warm water. A warm water outlet 45 is fixed on the outer layer pipe 411, and the warm water outlet 45 is communicated with the water flow channel 413. The warm water can be discharged from the warm water outlet 45, and the warm water outlet 45 also passes through the warm water hole on the housing 1. Another valve 3 is installed at the warm water outlet 45 and fixed on the housing 1 to control the on-off of the warm water outlet 45.

[0019] One end of the water flow branch pipe 42 is fixed on the outer layer pipe 411 and communicated with the water flow channel 413. The heat exchange coil pipes 41 are stacked in a spiral shape. The connection between the water flow branch pipe 42 and the water flow channel 413 is far away from the end of the inner layer pipe 412 that connects to the cold water source, so that the cold water can be fully heat-exchanged, that is, to ensure that the water entering the water flow branch pipe 42 is all warm water. A warm water inlet 22 is opened on the side wall of the boiling water tank 2. The other end of the water flow branch pipe 42 is communicated with the warm water inlet 22, and then the warm water enters the boiling water tank 2 for heating. A heating pipe is fixed in the boiling water tank 2 to heat the liquid in the boiling water tank 2. Since the water entering the boiling water tank 2 is not directly cold water connected from the water source, the heating time is short. And the boiling water participating in the heat exchange will become warm water and can be directly discharged for drinking. Of course, valves 3 can be provided at both the boiling water inlet 44 and the warm water inlet 22 according to actual needs to control the corresponding flow rate, flow velocity, etc. The valve 3 here can be an electromagnetic valve, etc. to facilitate automatic control.

[0020] Compared with the prior art, when the present utility model is in use, it is necessary to first heat the water in the boiling water tank 2 to form boiling water, and the boiling water can enter the water flow channel 413 to act as the heat exchange medium of the heat exchange coil pipes 41. The cold water enters from the inner layer pipe 412 and fully contacts the boiling water in the water flow channel 413, so that the temperature of the boiling water in the water flow channel 413 decreases to form warm water, and finally is discharged from the warm water outlet 45 as direct drinking water. And the boiling water can be directly discharged from the boiling water outlet 21 for direct use by users who need boiling water, and also acts as a heat exchange medium to participate in the heat exchange to be made into warm water. And the cold water after heat exchange is preheated to form warm water before being sent into the boiling water tank 2, so that the heat is fully utilized, the heating efficiency is improved, and energy is saved. Users can also take boiling water and warm water as needed, and the applicable range is wider.

[0021] The above-mentioned embodiments are only the preferred embodiments of the present utility model, and cannot be used to limit the protection scope of the present utility model. Any non-substantial changes and substitutions made by those skilled in the art based on the present utility model belong to the protection scope required by the present utility model.

Claims

1. An energy-saving dual-temperature water heater, comprising a water tank and a heat exchange component, characterized in that: The heat exchange component is provided with a boiled water inlet, a cold water inlet, a warm water outlet and a warm water inlet. The cold water inlet is connected to a cold water source, and the boiled water inlet is connected to the boiled water tank. The boiled water is input into the heat exchange component from the boiled water tank. The cold water source inputs cold water into the heat exchange component. The cold water and the boiled water exchange heat in the heat exchange component. The warm water inlet is connected to the boiled water tank. The cold water after heat exchange is input into the boiled water tank from the warm water inlet. A boiled water outlet is provided on the boiled water tank.

2. The energy-saving dual-temperature water boiler according to claim 1, characterized in that: The heat exchange component includes a heat exchange coil and a water branch pipe. The hot water inlet and the cold water inlet are arranged at one end of the heat exchange coil, and the water branch pipe and the warm water outlet are arranged at the other end of the heat exchange coil. The water branch pipe connects the heat exchange coil and the hot water tank.

3. The energy-saving dual-temperature water boiler according to claim 2, characterized in that: The heat exchange coil comprises an outer tube and an inner tube, a water channel is formed between the outer tube and the inner tube, the cold water inlet is arranged on the inner tube and communicates with the inner tube, and the hot water inlet is arranged on the outer tube and communicates with the water channel; The warm water outlet is arranged on the outer layer tube and communicated with the water channel, and the water branch pipe is arranged on the inner layer tube and communicated with the inner layer tube.

4. The energy-saving dual-temperature water boiler according to claim 2, characterized in that: Valves are respectively arranged at the boiling water outlet and the warm water outlet.

5. The energy-saving dual-temperature water boiler according to claim 4, characterized in that: The open water box and the heat exchange component are fixed in the shell. The shell is provided with an open water hole and a warm water hole. The open water outlet extends from the open water hole, the warm water outlet extends from the warm water hole, and the valve is fixed on the shell.

6. The energy-saving dual-temperature water boiler according to claim 5, characterized in that: The shell is provided with a water inlet hole, and one end of the heat exchange component extends out of the shell through the water inlet hole.

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