CN204880660U - A electromagnetic heating device that is used for large -scale commercial store water village circulation heating - Google Patents

Abstract

The utility model provides a reasonable design, simple structure, safe and reliable, and can effectively prevent dry burning electromagnetic heating device for circulation heating of large-scale commercial water storage tank; it includes a water storage tank, and also includes a cylindrical heating water tank and An electromagnetic induction coil wound on the outer wall of the heating water tank for generating electromagnetic induction heating to the heating water tank, wherein the top and bottom ends of the heating water tank are respectively connected to the interior of the water storage tank through the provided water inlet pipe and water outlet pipe. The top and the bottom of the cavity are connected and communicated, and a circulating water pump is installed on the water inlet pipe or the water outlet pipe; in this scheme, the separation between water and electricity is firstly realized due to the water storage center for storing water and the heating water tank for heating, Therefore, the water heater in this scheme is safer; secondly, because the heating water tank in this scheme adopts a cylindrical structure, in the process of heating water, due to its large heat transfer area and small temperature difference in forced circulation, it is not easy to Limescale.

Description

An electromagnetic heating device for circulating heating of large-scale commercial water storage

technical field

The utility model relates to the technical field of water heater equipment, in particular to an electromagnetic heating device for large-scale commercial water storage circulation heating.

Background technique

In the process of heating and using the traditional commercial water heater, when the hot water heated to a certain temperature flows out from the water outlet, the water inlet pipe connected to the upper part of the water tank cavity starts to supply water. During this process, a large amount of cold water pours in and The original hot water is mixed, so that the heating device will reheat it. This structural mode not only reduces the overall water temperature but also greatly reduces the waste of electric energy. There is a huge potential safety hazard. Once the magnesium oxide powder on the surface of the resistance wire is burned, the high-voltage current will directly flow into the water, which will make the water in the water heater electrified, seriously threatening personal safety; in addition, the resistance wire generally exists 30% during the heating process. The heat loss is low, the thermal efficiency is low, and after a period of heating, the surface of the resistance wire will be covered by scale, and the heat cannot be dissipated, which will further cause energy attenuation and reduce thermal efficiency; in addition, after long-term use, the scale will completely wrap the heating element, causing the heating element Burning and cracking, ranging from no electricity, the machine is paralyzed, and severe leakage may cause life-threatening. In view of this, it is particularly important for how to find a water heater structure with low cost, safe and effective, which can effectively prevent dry burning.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a large-scale commercial water storage circulation heating electromagnetic heating device which is reasonable in design, simple in structure, safe and reliable, and can effectively prevent dry burning.

In order to achieve the above purpose, the technical solution provided by the utility model is: an electromagnetic heating device for large-scale commercial water storage tank circulation heating, including a water storage tank, a cylindrical heating water tank and a heating water tank wrapped around the heating water tank The electromagnetic induction coil on the outer wall is used to generate electromagnetic induction heating to the heating water tank, wherein the top and bottom of the heating water tank are respectively connected to the top and bottom of the inner cavity of the water storage tank through the provided water inlet pipe and water outlet pipe Connected and communicated, the water inlet pipe or the water outlet pipe is also equipped with a circulating water pump.

Further, a thermostat probe for detecting the temperature of the incoming water is installed at the bottom of the heating water tank.

Further, the top of the heating water tank is also installed with an anti-dry temperature sensor for detecting the internal temperature of the heating water tank.

Preferably, the anti-boil-dry temperature sensor is a pair.

Further, a thermal insulation layer made of insulating and thermal insulation material is also provided between the outer wall of the heating water tank and the electromagnetic induction coil.

Further, the bottom end of the heating water tank is also provided with a sewage discharge port which can discharge sewage independently.

This scheme adopts the structure form of the water heater with the phase separation of water and electricity, that is, this scheme uses a cylindrical heating water tank to heat the water separately, and the heated water returns to the water storage center through the water inlet pipe, and is located in the water storage center at the same time. Under the action of the circulating water pump, the water returns to the heating water tank through the outlet pipe for repeated heating; in the above structure, firstly, the separation between water and electricity is realized due to the water storage center for storing water and the heating water tank for heating, Therefore, the water heater in this scheme is safer; secondly, because the heating water tank in this scheme adopts a cylindrical structure, in the process of heating water, due to its large heat transfer area, it is not easy to scale; finally, because Under the drive of the circulating water pump, the water in this solution repeatedly flows into and out of the hot water tank and the water storage tank in the form of circulating flow. On the one hand, the water temperature difference in the water storage tank is small, and on the other hand, it further It makes it difficult for scale to exist on the inner surface of the heating water tank, and maintains heating efficiency and service life.

Description of drawings

Fig. 1 is a structural schematic diagram of the working principle of the present utility model.

In the figure: 1-water storage, 2-inlet pipe, 3-outlet pipe, 4-circulating water pump, 5-heating water tank, 6-insulation layer, 7-electromagnetic induction coil, 8-anti-dry temperature sensor, 9- Thermostat probe, 10-sewage outlet.

Detailed ways

Below in conjunction with specific embodiment the utility model is further described:

Referring to Figure 1, an electromagnetic heating device for large-scale commercial water storage circulation heating described in this embodiment includes a cylindrical water storage tank 1, a cylindrical steel heating water tank 5 and The electromagnetic induction coil 7 wound on the outer wall of the heating water tank 5 for generating electromagnetic induction heating to the heating water tank 5, wherein the top and bottom ends of the heating water tank 5 pass through the water inlet pipe 2 and the water outlet pipe 3 provided with the water storage tank 1 respectively. The top and the bottom of the inner cavity are connected and communicated, and a circulating water pump 4 is also installed on the water inlet pipe 2 or the water outlet pipe 3 (the circulating water pump 4 in this embodiment is installed on the water outlet pipe 3).

In addition, in order to prevent the phenomenon of dry heating in the heating water tank 5, this solution is also equipped with an anti-dry heating temperature sensor 8 for detecting the internal temperature of the heating water tank 5. The preferred number of anti-dry heating temperature sensors 8 is one right. At the same time, in order to prevent the heating water tank 5 from overheating the water (that is, after the water temperature in the water storage center reaches the heating temperature set by the system, there is no need to heat it again), the bottom of the heating water tank 5 in this program is equipped with a device for detecting water inflow. Thermostat probe 9 for temperature.

In addition, in order to reduce the heat loss of the heating water tank 5 as much as possible, in this solution, an insulating layer 6 made of an insulating and heat-preserving material is also provided between the outer wall of the heating water tank 5 and the electromagnetic induction coil 7 . Simultaneously, when the electromagnetic heating device in this program is shut down, it can discharge sewage through the independent sewage outlet 10 arranged at the bottom of the heating water tank 5 to clean up the impurities in the heating water tank 5 .

The implementation examples described above are only preferred embodiments of the present utility model, and are not intended to limit the scope of implementation of the present utility model, so all changes made according to the shape and principle of the present utility model should be covered by the scope of the present utility model. within the scope of protection.

Claims (6)

1. An electromagnetic heating device for large-scale commercial water storage circulation heating, comprising water storage (1), is characterized in that: also comprises cylindrical heating water tank (5) and is wound around this heating water tank (5) An electromagnetic induction coil (7) for generating electromagnetic induction heating to the heating water tank (5) on the outer wall, wherein the top and bottom ends of the heating water tank (5) respectively pass through the water inlet pipe (2) and the water outlet pipe ( 3) It is connected to the top and bottom of the inner cavity of the water storage tank (1), and a circulating water pump (4) is also installed on the water inlet pipe (2) or the water outlet pipe (3). 2. An electromagnetic heating device for circulating heating of large-scale commercial water storage according to claim 1, characterized in that: the bottom of the heating water tank (5) is also equipped with a thermostat for detecting the temperature of the incoming water probe (9). 3. An electromagnetic heating device for large-scale commercial water storage circulation heating according to claim 1 or 2, characterized in that: the top of the heating water tank (5) is also equipped with a device for detecting the heating water tank (5) Anti-boil-dry temperature sensor (8) for internal temperature. 4. An electromagnetic heating device for circulating heating of large-scale commercial water storage according to claim 3, characterized in that: said anti-dry temperature sensors (8) are a pair. 5. An electromagnetic heating device for circulating heating of large-scale commercial water storage according to claim 4, characterized in that: there is a layer between the outer wall of the heating water tank (5) and the electromagnetic induction coil (7) An insulating layer (6) made of an insulating and insulating material. 6. An electromagnetic heating device for large-scale commercial water storage circulation heating according to claim 5, characterized in that: the bottom of the heating water tank (5) is also provided with a sewage outlet that can independently discharge sewage ( 10).