Heating device of water heater

Abstract

The utility model provides a heating device of a water heater, and relates to the technical field of water heater heating equipment. A heating device of a water heater comprises a lower connector, an upper connector, an electromagnetic heating coil and a sleeve, the sleeve is clamped between the lower connector and the upper connector, the electromagnetic heating coil is arranged on the sleeve in a sleeved mode, and a water inlet end and a lower connecting end are arranged at the two ends of the lower connector respectively. According to the device, the heating inner pipe and the heating middle pipe in the sleeve are heated by electrifying the electromagnetic heating coil under the principle of an electromagnetic induction heating phenomenon, so that water flowing into the device is heated, and a water flowing path is prolonged under the action of the sleeve, the heating inner pipe and the heating middle pipe, so that the water flowing through the device is more uniform. And the sleeve and the heating inner pipe continuously heat water flowing in the sleeve, the water heating effect is improved, and the device is safe to use and convenient to install, operate and maintain.

Description

Technical Field

[0001] The utility model relates to a heating device, in particular to a heating device for a water heater, belonging to the technical field of water heater heating equipment. Background Art

[0002] The current heating sources are mainly gas heating and electric heating. Electric water heaters are heating equipment for heating water. Usually, a heating device inside the furnace is used to heat water and convert electrical energy into thermal energy to meet daily hot water needs.

[0003] Most electric water heaters use heating devices such as electric heating tubes or electric heating plates that are directly placed in water to directly heat the water. Over time, scale will form on the heating devices, making it inconvenient to maintain and operate the heating devices. In addition, the above-mentioned heating devices are prone to leakage, which brings certain safety hazards. Therefore, the utility model provides a heating device for a water heater. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] The purpose of the utility model is to provide a heating device for a water heater in order to solve the above problems, so as to solve the problems in the prior art that the heating device is inconvenient to maintain and operate, is prone to leakage, and brings certain safety hazards.

[0006] (II) Technical solution

[0007] The utility model is implemented through the following technical scheme: a heating device of a water heater, comprising a lower joint, an upper joint, an electromagnetic heating coil and a sleeve, the sleeve being clamped between the lower joint and the upper joint, the electromagnetic heating coil being sleeved on the sleeve, the two ends of the lower joint being respectively provided with a water inlet end and a lower connecting end, the water inlet end and the lower connecting end being communicated, a heating inner tube being welded at the top of the lower connecting end, the top of the heating inner tube being open, a heating middle tube being welded on the lower connecting end, the top of the heating middle tube being blocked, the heating inner tube being arranged inside the heating middle tube, a water outlet end and an upper connecting end being respectively provided at the two ends of the upper joint, the upper connecting end being detachably connected to one end of the heating middle tube, and a drainage hole being communicated with the water outlet end being opened on the outer surface of the upper connecting end.

[0008] Preferably, a connecting plug is fixedly connected to the top of the heating middle tube, a screw hole is provided on the top of the connecting plug, and one end of the heating middle tube is sealed by the provided connecting plug.

[0009] Preferably, a connecting screw is inserted into the inner bottom wall of the upper connecting end, and one end of the connecting screw is threadedly connected to the inside of the screw hole at the top of the connecting plug. The upper joint is conveniently connected to one end of the heating middle pipe through the provided connecting screw and the screw hole on the connecting plug.

[0010] Preferably, sealing rings are installed inside the upper joint and the lower joint, and the two sealing rings are arranged at both ends of the sleeve. The sealing rings increase the sealing performance of the connection between the sleeve and the lower joint and the upper joint.

[0011] Preferably, the sleeve is transparent, and the outer surfaces of the water outlet and the water inlet are both provided with external threads. The transparent sleeve facilitates observation of the water flow state inside the sleeve.

[0012] Preferably, there are multiple drainage holes, which are distributed on the upper connecting end in a circular array.

[0013] The utility model provides a heating device for a water heater, which has the following beneficial effects:

[0014] 1. The device heats the inner heating tube and the middle heating tube inside the sleeve by energizing the electromagnetic heating coil under the principle of electromagnetic induction heating, thereby heating the water flowing into the device. The sleeve, the inner heating tube and the middle heating tube extend the path of the water flow, and the sleeve and the inner heating tube continuously heat the water flowing inside the sleeve, thereby improving the heating effect of the water. The device is safe to use and easy to install, operate and maintain.

[0015] 2. The device combines and connects the upper connecting end of the upper joint with one end of the heating middle pipe through the connecting screws and the screw holes on the connecting plug. The connecting screws at one end of the upper connecting end are conveniently removed through the water outlet end to separate the upper connecting end from the connecting plug. The sealing performance of the connection between the sleeve and the lower joint and the upper joint is increased by the provided sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the utility model;

[0018] Figure 3 This is a three-dimensional diagram of the heating middle tube structure of the utility model;

[0019] Figure 4 This is a cross-sectional view of the heating middle tube and the heating inner tube structure of the utility model;

[0020] Figure 5 It is a cross-sectional view of the upper joint of the utility model.

[0021]

Main component symbol description

[0022] 1. Lower joint; 11. Water inlet end; 12. Lower connection end; 2. Upper joint; 21. Water outlet end; 22. Upper connection end; 23. Connecting screws; 24. Drain hole; 3. Electromagnetic heating coil; 4. Sleeve; 5. Heating inner tube; 6. Heating middle tube; 61. Connecting plug; 7. Sealing ring. DETAILED DESCRIPTION

[0023] The embodiment of the utility model provides a heating device for a water heater.

[0024] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , including a lower joint 1, an upper joint 2, an electromagnetic heating coil 3 and a sleeve 4, the sleeve 4 is clamped between the lower joint 1 and the upper joint 2, and sealing rings 7 are installed inside the upper joint 2 and the lower joint 1, two sealing rings 7 are arranged at both ends of the sleeve 4, the sleeve 4 is clamped between the lower joint 1 and the upper joint 2, and the sealing of the connection between the two ends of the sleeve 4 is increased by the arranged sealing rings 7, the electromagnetic heating coil 3 is sleeved on the sleeve 4, the two ends of the lower joint 1 are respectively provided with a water inlet end 11 and a lower connecting end 12, the water inlet end 11 and the lower connecting end 12 are connected, and are connected to the water inlet pipe through the water inlet end 11, so that the water source to be heated enters the interior of the device through the water inlet end 11 and the lower connecting end 12, and a heating inner tube 5 is welded on the top of the lower connecting end 12, and the lower connecting end 12 is welded with the heating inner tube 5. The end 12 is connected with the heating inner tube 5, and flows to the inside of the heating inner tube 5 through the water inlet end 11 and the lower connecting end 12. The top of the heating inner tube 5 is open, and a heating middle tube 6 is welded on the lower connecting end 12. The top of the heating middle tube 6 is blocked. The heating inner tube 5 is arranged inside the heating middle tube 6. The electromagnetic heating coil 3 is energized by the electromagnetic heating controller. The heating inner tube 5 and the heating middle tube 6 are both made of metal. The heating inner tube 5 and the heating middle tube 6 are heated according to the principle of electromagnetic heating to heat the water inside the device. The water flowing into the heating inner tube 5 flows out through the top of the heating inner tube 5, flows into the gap between the heating inner tube 5 and the heating middle tube 6, and then flows out through the bottom of the heating middle tube 6 to the inside of the sleeve 4.

[0025] Please refer again Figure 1 , Figure 2 , Figure 3 and Figure 5The two ends of the upper joint 2 are respectively provided with a water outlet end 21 and an upper connecting end 22. The upper connecting end 22 is detachably connected to one end of the heating middle tube 6. The top of the heating middle tube 6 is fixedly connected with a connecting plug 61. A screw hole is opened on the top of the connecting plug 61. A connecting screw 23 is inserted into the inner bottom wall of the upper connecting end 22. One end of the connecting screw 23 is threadedly connected to the inside of the screw hole at the top of the connecting plug 61. The connecting screw 23 is installed through the water outlet end 21, and then one end of the upper connecting end 22 is installed at one end of the connecting plug 61, so that one end of the connecting screw 23 is screwed into the screw hole inside the connecting plug 61, thereby completing the connection combination of the upper joint 2 and the heating middle tube 6, and clamping the sleeve 4 between the lower joint 1 and the upper joint 2.

[0026] Please refer again Figure 1 , Figure 2 , Figure 3 and Figure 5 The outer surface of the upper connecting end 22 is provided with a drainage hole 24 connected to the water outlet end 21. There are multiple drainage holes 24, which are distributed on the upper connecting end 22 in a circular array. The sleeve 4 is transparent. The outer surfaces of the water outlet end 21 and the water inlet end 11 are both provided with external threads. The water outlet end 21 is connected to the water outlet pipe. The heated water flows into the interior of the water outlet end 21 through the drainage holes 24 on the upper connecting end 22 and is finally discharged through the water outlet pipe.

[0027] Working principle: install the device at a suitable position, connect the electromagnetic heating coil 3 to the electromagnetic heating controller, connect the water inlet end 11 to the water inlet pipe, and connect the water outlet end 21 to the water outlet pipe. Water flows into the interior of the heating inner tube 5 through the water inlet end 11 and the lower connecting end 12. The water flowing into the interior of the heating inner tube 5 flows out through the top of the heating inner tube 5, flows into the gap between the heating inner tube 5 and the heating middle tube 6, and then flows out through the bottom of the heating middle tube 6 to the interior of the sleeve 4. The electromagnetic heating controller is used to power the electromagnetic heating coil 3 to heat the heating inner tube 5 and the heating middle tube 6, thereby heating the water inside the sleeve 4. The heated water flows into the interior of the water outlet end 21 through the drain hole 24, and is finally discharged through the water outlet pipe. The connecting screw 23 at one end of the upper connecting end 22 is removed through the water outlet end 21, so that the upper joint 2 is removed from one end of the heating middle tube 6.

[0028] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A heating device for a water heater, comprising a lower joint (1), an upper joint (2), an electromagnetic heating coil (3) and a sleeve (4), characterized in that: The sleeve (4) is clamped between the lower joint (1) and the upper joint (2); the electromagnetic heating coil (3) is sleeved on the sleeve (4); the two ends of the lower joint (1) are respectively provided with a water inlet end (11) and a lower connecting end (12); the water inlet end (11) and the lower connecting end (12) are connected; a heating inner tube (5) is welded to the top of the lower connecting end (12); the top of the heating inner tube (5) is open; a heating middle tube (6) is welded to the lower connecting end (12); the top of the heating middle tube (6) is blocked; the heating inner tube (5) is arranged inside the heating middle tube (6); the two ends of the upper joint (2) are respectively provided with a water outlet end (21) and an upper connecting end (22); the upper connecting end (22) is detachably connected to one end of the heating middle tube (6); and a drainage hole (24) connected to the water outlet end (21) is opened on the outer surface of the upper connecting end (22).

2. The heating device of a water heater according to claim 1, characterized in that: A connecting plug (61) is fixedly connected to the top of the heating middle tube (6), and a screw hole is provided on the top of the connecting plug (61).

3. A heating device for a water heater according to claim 2, characterized in that: A connecting screw (23) is inserted into the inner bottom wall of the upper connecting end (22), and one end of the connecting screw (23) is threadedly connected to the inside of the screw hole at the top of the connecting plug (61).

4. The heating device of a water heater according to claim 1, characterized in that: Sealing rings (7) are installed inside the upper joint (2) and the lower joint (1), and the two sealing rings (7) are arranged at both ends of the sleeve (4).

5. The heating device of a water heater according to claim 1, characterized in that: The sleeve (4) is transparent, and the outer surfaces of the water outlet end (21) and the water inlet end (11) are both provided with external threads.

6. The heating device of a water heater according to claim 1, characterized in that: There are a plurality of drainage holes (24), and the plurality of drainage holes (24) are distributed on the upper connecting end (22) in a circular array.

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