A hot water pipeline instant heating device

Abstract

This utility model discloses an instantaneous hot water pipeline heating device, including a main heater, a terminal water outlet device, water pipes, and an auxiliary heater. The auxiliary heater includes two outer shells, a heat exchange box disposed between the two outer shells, and two water pipe joints respectively disposed at both ends of the heat exchange box. At least one mounting component for wall mounting is provided on the exterior of each of the two outer shells. The water pipe joints include a pipe body, a flow rate sensor disposed within the pipe body, and a temperature sensor disposed within the pipe body. The device provides auxiliary heating to the hot water pipe between the main heater and the terminal water outlet device, shortening the time for the terminal water outlet device to dispense hot water. The opening and closing of the heat exchange box is automatically controlled by the water flow rate and temperature. The device has fewer external connections, a higher degree of modularity, and is easier to arrange and construct. Vulnerable and easily malfunctioning components are integrated with the water pipe joints, facilitating overall replacement and maintenance.

Description

Technical Field

[0001] This utility model belongs to the technical field of heating devices, and in particular relates to an instantaneous heating device for hot water pipelines. Background Technology

[0002] There are generally two methods for heating hot water in household hot water pipes: The first is pure electric heating. To reach the preset temperature for a long time, a high-power heating element is required, usually 8000W or higher. The first drawback is that it places higher demands on the user's wiring specifications, circuit breakers (air switches), sockets and plugs, and leakage protection settings. The second drawback is that pure electric heating elements consume a lot of energy, and if the user has two or more bathrooms, the energy consumption will increase further. The second method is gas heating. Its drawback is that in winter or when the room temperature is low, it takes a long time for hot water to reach the tap or showerhead, thus wasting precious water resources. Each instance of waste adds up to a greater amount of waste over the years, which is not conducive to energy conservation and emission reduction.

[0003] Chinese patent document CN211372771U discloses a household instant hot water pipe connector, including a connector body with a water outlet at one end and a water inlet at the other end. This household instant hot water pipe connector does not operate when the cold water valve is opened. When the hot water valve is opened, a temperature sensor and a power supply device operate simultaneously. The power supply device supplies power to the heating element, heating the cold water inside the pipe to ensure hot water flows out of the outlet. When the hot water from the water heater reaches the pipe inlet, the temperature sensor receives a signal and sends it to the power supply device, causing the power supply device to stop operating. At this point, hot water from the water heater begins to flow out of the outlet, thus saving cold water and providing hot water immediately upon opening the hot water valve.

[0004] In the aforementioned patented solution, the heating element is switched to working state by opening the hot water valve. However, in practical applications, for water-using locations that are close together, such as adjacent kitchens and bathrooms, or between multiple valves (shower and sink) in a bathroom, installing a number of instant hot water pipe joints corresponding to the number of hot water valves would not only significantly increase construction costs, but also create significant redundancy due to the short distances between hot water outlets. Conversely, if only one instant hot water pipe joint is installed, each hot water valve must be electrically connected to that joint, resulting in higher wiring and construction complexity. Utility Model Content

[0005] To overcome the technical problems of existing technologies where hot water valves and instant hot water pipe joints require electrical connections, and where multiple heating water pipe joints increase redundancy and construction costs for multiple water usage locations in close proximity, while installing a single heating water pipe joint also increases the difficulty of wiring and construction, this utility model aims to provide an instant hot water pipeline heating device. This device uses two spliced ​​outer shells to enclose a heat exchange box, with temperature and flow rate sensors installed at both ends of the heat exchange box. The device automatically adjusts the operating state of the heat exchange box based on the flow rate and temperature of the water in the auxiliary heater, providing auxiliary heating to the water flow in the hot water pipe. This reduces external connections, increases modularity, and lowers construction difficulty and cost.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a hot water pipeline instantaneous heating device, comprising a main heater, a terminal water outlet device, a hot water pipe disposed between the main heater and the terminal water outlet device, and an auxiliary heater disposed on the hot water pipe near the terminal water outlet device; the auxiliary heater comprises two outer shells, a heat exchange box disposed between the two outer shells, and two water pipe joints respectively disposed at both ends of the heat exchange box; wherein, at least one mounting assembly for wall mounting is disposed on the exterior of the two outer shells; the mounting assembly comprises two clamps for pressing the two outer shells together; the water pipe joint comprises a pipe body, a flow velocity sensor disposed within the pipe body for monitoring water flow velocity, and a temperature sensor disposed within the pipe body for monitoring water flow temperature; the temperature sensor is disposed between the heat exchange box and the flow velocity sensor.

[0007] When the flow rate sensor reading is 0, the water in the hot water pipe does not flow, the end water outlet device does not use water, and the heat exchange box does not work; when the flow rate sensor reading is not 0, the end water outlet device uses water, the temperature sensor measures the water temperature flowing through the auxiliary heater and compares it with the set water temperature in the main heater. If it is lower than the set water temperature, the heat exchange box is activated to provide auxiliary heating, shortening the time for the end water outlet device to dispense hot water; if it is higher than or equal to the set water temperature, the heat exchange box stops auxiliary heating.

[0008] Furthermore, the inner diameter of the tube body near the heat exchange box is smaller than the inner diameter of the tube body away from the heat exchange box; a stepped eave is provided inside the tube body; a filter screen is provided on the stepped eave; the filter screen is located on the side of the flow rate sensor away from the heat exchange box.

[0009] The inner diameter of the coil in the heat exchange box is smaller than the inner diameter of the external hot water pipe, which helps to increase the contact area of ​​the coil and improve heating efficiency; the filter screen prevents impurities or scale in the water from flowing into the heat exchange box, ensuring the working efficiency of the heat exchange box.

[0010] Optionally, the tube body is provided with an embedded tube, which presses the filter screen tightly onto the stepped eaves.

[0011] Optionally, a retaining spring is provided inside the tube to press the filter screen firmly onto the stepped eaves.

[0012] Furthermore, the outer wall of the outer shell is provided with a concave ring; the two bands are respectively a U-shaped band and a flat band for closing the opening of the U-shaped band; the inner bottom of the concave ring abuts against the inner bottom of the opening of the U-shaped band.

[0013] The U-shaped clamp and the flat clamp fasten the two outer shells together, and at the same time, they can also mount the auxiliary heater on the wall, making it easy to inspect and maintain the auxiliary heater.

[0014] Specifically, the outer wall of the tube is provided with a first mounting ear; the two sides of the heat exchange box are respectively provided with a second mounting ear; one of the outer shells is provided with positioning screw holes for mounting the first mounting ear at both ends, and the middle part of the outer shell is provided with a support for mounting the second mounting ear.

[0015] Furthermore, the heat exchange box includes a box body, a coil disposed inside the box body with its two ends respectively connected to the two water pipe joints, a heating pipe disposed inside the box body, and a circuit board disposed outside the box body; the circuit board is provided with two relays, one of which is used to control the operation of the heating pipe, and the other of which is used to cut off the total power supply to the circuit board when there is a high temperature overload.

[0016] Optionally, a mounting base is provided on the tube body; a clamp is detachably connected to the mounting base; the temperature sensor is installed between the mounting base and the clamp; the probe end of the temperature sensor extends into the tube body.

[0017] Optionally, a mounting base is provided on the pipe body; the temperature sensor is threadedly connected to the mounting base; the probe end of the temperature sensor extends into the pipe body.

[0018] Furthermore, a heat-insulating filler is provided between the two outer shells.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] 1. This utility model is used to provide auxiliary heating for the hot water pipe between the main heater and the terminal water outlet device, shortening the time for the terminal water outlet device to produce hot water, making it more convenient and faster to use hot water; the structure is simple and compact, and the whole assembly and installation can be easily carried out by two clamps.

[0021] 2. This utility model automatically controls the opening or closing of the heat exchange box by controlling the flow rate and temperature of the water flowing through it. It has fewer connections to the outside world, a higher degree of modularity, and is easier to arrange and construct. It also facilitates the secondary renovation of existing hot water pipe networks.

[0022] 3. This utility model integrates easily damaged and faulty components such as temperature sensors and flow rate sensors with water pipe connectors into a single unit, facilitating overall replacement and maintenance; at the same time, it also incorporates overload protection in the heat exchange box, resulting in a higher safety factor. Attached Figure Description

[0023] Figure 1 This is a schematic diagram illustrating the principle and structure of this utility model;

[0024] Figure 2 This is an exploded view of the components of the auxiliary heater of this utility model;

[0025] Figure 3 This is a schematic diagram of Embodiment 1 of the water pipe connector of this utility model;

[0026] Figure 4 This is a cross-sectional structural diagram of Embodiment 1 of the water pipe connector of this utility model;

[0027] Figure 5 This is a schematic diagram of embodiment 2 of the water pipe connector of this utility model;

[0028] Figure 6 This is a cross-sectional structural diagram of embodiment 2 of the water pipe connector of this utility model;

[0029] Figure 7 This is a schematic diagram of the heat exchange box of this utility model;

[0030] Figure 8 This is a schematic diagram of the structure of the auxiliary heater of this utility model;

[0031] In the diagram: 11. Main heater; 12. Auxiliary heater; 13. Hot water pipe; 14. Terminal water outlet device; 15. Housing; 151. Concave ring; 152. Positioning screw hole; 153. Support column; 16. U-shaped hoop; 17. Flat hoop; 18. Conduit; 2. Water pipe connector; 21. Pipe body; 211. First mounting ear; 212. Mounting base; 213. Stepped edge; 22. Temperature sensor; 23. Flow sensor; 24. Filter screen; 25. Embedded tube; 26. Snap ring; 27. Clamping plate; 31. Heat exchange box; 311. Second mounting ear; 32. Heating pipe; 33. Water pipe; 41. Circuit board; 42. Relay. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0033] In the description of this utility model, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In this description of the utility model, "a number" means two or more, unless otherwise explicitly specified.

[0035] In this utility model, unless otherwise explicitly specified and limited, terms such as "set" and "install" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] See Figures 1-8 A hot water pipeline instantaneous heating device includes a main heater 11, a terminal water outlet device 14, a hot water pipe 13 disposed between the main heater 11 and the terminal water outlet device 14, and an auxiliary heater 12 disposed on the hot water pipe 13 near the terminal water outlet device 14.

[0037] The auxiliary heater 12 includes two outer shells 15, a heat exchange box 31 disposed between the two outer shells 15, two water pipe joints 2 respectively disposed at both ends of the heat exchange box 31, and two mounting assemblies disposed on the outside of the two outer shells 15; the mounting assembly includes two clamps for pressing the two outer shells 15 together; the two clamps are a U-shaped clamp 16 and a flat clamp 17 for closing the opening of the U-shaped clamp 16; the outer wall of the outer shell 15 is provided with a concave ring 151; the inner bottom of the concave ring 151 abuts against the inner bottom of the opening of the U-shaped clamp 16.

[0038] The heat exchange box 31 includes a box body, a coil disposed inside the box body with its two ends respectively connected to the two water pipe joints 2, a heating pipe 32 disposed inside the box body, and a circuit board 41 disposed outside the box body; the circuit board 41 is provided with two relays 42, one of which is used to control the operation of the heating pipe 32, and the other of which is used to cut off the main power supply of the circuit board 41 when there is a high temperature overload; the heat exchange box 31 is provided with two water pipes 33, which are located on two opposite side walls and are respectively close to the two ends of the heat exchange box 31.

[0039] The water pipe connector 2 includes a pipe body 21, a flow velocity sensor 23 for monitoring water flow velocity disposed within the pipe body 21, and a temperature sensor 22 for monitoring water temperature disposed within the pipe body 21; the temperature sensor 22 is disposed between the heat exchange box 31 and the flow velocity sensor 23. The inner diameter of the pipe body 21 near the heat exchange box 31 is smaller than the inner diameter of the end away from the heat exchange box 31. A stepped eave 213 is provided inside the pipe body 21; a filter screen 24 is provided on the stepped eave 213; the filter screen 24 is located on the side of the flow velocity sensor 23 away from the heat exchange box 31.

[0040] The outer wall of the tube 21 is provided with a first mounting ear 211; the heat exchange box 31 is provided with a second mounting ear 311 on each side; one of the outer shells 15 is provided with positioning screw holes 152 for mounting the first mounting ear 211 at both ends, and a support column 153 for mounting the second mounting ear 311 is provided in the middle of the outer shell 15, and a conduit 18 for the wiring to pass through is provided in the middle of the outer shell 15; a heat insulation filler is provided between the two outer shells 15.

[0041] Example 1

[0042] An embedded tube 25 is provided inside the tube body 21, which presses the filter screen 24 onto the stepped eaves 213; a mounting base 212 is provided on the outer wall of the tube body 21; a clamping plate 27 is detachably connected to the mounting base 212; a temperature sensor 22 is installed between the mounting base 212 and the clamping plate 27; the detection end of the temperature sensor 22 extends into the tube body 21.

[0043] Example 2

[0044] A retaining spring 26 is provided inside the tube body 21, which presses the filter screen 24 onto the stepped eaves 213; a mounting base 212 is provided on the tube body 21; the temperature sensor 22 is threadedly connected to the mounting base 212; the detection end of the temperature sensor 22 extends into the tube body 21.

[0045] Work process

[0046] When the terminal water outlet device 14 is turned on, the main heater 11 supplies hot water to the terminal water outlet device 14. However, because unheated cold water remains in the hot water pipes of the terminal water outlet device 14 and the main heater 11, the time for hot water to be dispensed will increase. At this time, the flow rate sensor 23 monitors the water flowing through the auxiliary heater 12, that is, the water flowing through the water pipe joint 2 and the heat exchange box 31, and the temperature sensor 22 detects the temperature of the water outlet of the heat exchange box 31. If the temperature is lower than the preset temperature of the main heater 11, the heat exchange box 31 activates the heating tube 32 to heat the water flowing through the heat exchange box 31 until the temperature is equal to the preset temperature of the main heater 11, at which point the heat exchange box 31 stops heating, which can greatly shorten the time for the terminal water outlet device 14 to dispense hot water.

[0047] When the water supply is turned off by the terminal water outlet device 14, the flow rate sensor 23 detects that the water in the auxiliary heater 12 is no longer flowing, and the temperature sensor 22 and the heat exchange box 31 are not working.

[0048] The above description is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A hot water pipeline instantaneous heating device, characterized in that: The device includes a main heater, a terminal water outlet device, a hot water pipe disposed between the main heater and the terminal water outlet device, and an auxiliary heater disposed on the hot water pipe near the terminal water outlet device. The auxiliary heater includes two outer shells, a heat exchange box disposed between the two outer shells, and two water pipe joints respectively disposed at both ends of the heat exchange box. At least one mounting assembly for wall mounting is disposed on the exterior of each of the two outer shells. The mounting assembly includes two clamps for pressing the two outer shells together. The water pipe joint includes a pipe body, a flow rate sensor disposed within the pipe body for monitoring water flow velocity, and a temperature sensor disposed within the pipe body for monitoring water flow temperature. The temperature sensor is disposed between the heat exchange box and the flow rate sensor.

2. The heating device as described in claim 1, characterized in that: The inner diameter of the tube body near the heat exchange box is smaller than the inner diameter of the tube body away from the heat exchange box; a stepped eave is provided inside the tube body; a filter screen is provided on the stepped eave; the filter screen is located on the side of the flow rate sensor away from the heat exchange box.

3. The heating device as described in claim 2, characterized in that: An embedded tube is provided inside the tube, which presses the filter screen tightly onto the stepped eaves.

4. The heating device as described in claim 2, characterized in that: A retaining spring is provided inside the tube, which presses the filter screen firmly onto the stepped eaves.

5. The heating device as described in any one of claims 1-4, characterized in that: The outer wall of the outer shell is provided with a concave ring; the two bands are a U-shaped band and a flat band for closing the opening of the U-shaped band; the inner bottom of the concave ring abuts against the inner bottom of the opening of the U-shaped band.

6. The heating device according to any one of claims 1-4, characterized in that: The outer wall of the tube is provided with a first mounting ear; the two sides of the heat exchange box are respectively provided with a second mounting ear; one of the outer shells is provided with positioning screw holes for mounting the first mounting ear at both ends, and the middle part of the outer shell is provided with a support for mounting the second mounting ear.

7. The heating device according to any one of claims 1-4, characterized in that: The heat exchange box includes a box body, a coil disposed inside the box body with its two ends respectively connected to two water pipe joints, a heating pipe disposed inside the box body, and a circuit board disposed outside the box body; the circuit board is provided with two relays, one of which is used to control the operation of the heating pipe, and the other of which is used to cut off the main power supply to the circuit board when there is a high temperature overload.

8. The heating device as described in any one of claims 1-4, characterized in that: A mounting base is provided on the tube body; a clamp is detachably connected to the mounting base; the temperature sensor is installed between the mounting base and the clamp; the probe end of the temperature sensor extends into the tube body.

9. The heating device according to any one of claims 1-4, characterized in that: A mounting base is provided on the tube body; the temperature sensor is threadedly connected to the mounting base; the probe end of the temperature sensor extends into the tube body.

10. The heating device according to any one of claims 1-4, characterized in that: A heat-insulating filler is provided between the two outer shells.

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