WO2013010364A1

WO2013010364A1 - Dry burning prevention electromagnetic water heater

Info

Publication number: WO2013010364A1
Application number: PCT/CN2011/083153
Authority: WO
Inventors: 郭士军
Original assignee: Guo Shijun
Priority date: 2011-07-19
Filing date: 2011-11-29
Publication date: 2013-01-24
Also published as: CN202171344U

Abstract

A dry burning prevention electromagnetic water heater comprises a water tank (1), a controller, a first water flow detector (5) and a second water flow detector (6). A water inlet (101) and a water outlet (103) are provided on the water tank (1). A heat exchange passage in communication with the water inlet (101) and the water outlet (103) is disposed in the water tank (1). The first water flow detector (5) and the second water flow detector (6) are respectively disposed at the water inlet (101) and the water outlet (103) of the water tank (1). The water tank (1) further comprises a coil panel (9). The controller is electrically connected to the first water flow detector (5), the second water flow detector (6), and the coil panel (6) to monitor water inflow and water outflow at the same time, thereby preventing dry burning.

Description

Anti-dry burning electromagnetic water heater

The invention relates to the electric water heater industry, in particular to an electromagnetic heating water heater and a water inlet water tank. Background technique

The current instant water heaters mainly use a conventional electric heating boiler or an electromagnetic heating tube of an electric heating film as a heating element, and the electromagnetic heating tube has a high heat density and a short water-heat exchange time, so that it is an instant water heater. It is necessary to ensure that the water flowing through the heating element can absorb the heat of the heating element through a heat exchange structure, so that the existing instant water heater structure is heated at least internally on the basis of the conventional electric heating boiler or the electric heating film. A horizontal or vertical tubular circuit on one side of the body is arranged to form a water tank, thereby achieving the purpose of lengthening the water passage of the water tank and the heat exchange time of the water. However, for the instant water heater, the heat generating body has a high heat density and a short water heat exchange time, and a good heat exchange structure must be provided to ensure that the water flowing through the heat generating body can absorb the heat of the heat generating body. It is also necessary to avoid the problem of local dry burning caused by the bubbles formed by water vapor during the heating process, and the existing electromagnetic heating water heaters are relatively lacking in this respect. Summary of the invention

SUMMARY OF THE INVENTION The object of the present invention is to overcome the above drawbacks and to provide an electromagnetic heating water heater and an arched water tank which can effectively avoid the problem of dry burning caused by water vapor accumulation and clogging.

The object of the present invention is achieved as follows: an anti-thousand-burn electromagnetic water heater comprising a water tank, a controller, a first water flow detector and a second water flow detector; wherein the water tank is provided with a water inlet and a water outlet, wherein a heat exchange passage is provided to communicate with the water inlet and the water outlet; the first water flow detector is disposed at the water inlet of the water tank, and the second water flow detector is disposed at the water outlet of the water tank; the first water flow detector and the second water flow detector The water flow detector is input to the electrical connection controller; the water tank comprises a wire tray, and the controller electrical output connection cable tray;

In the above structure, the water inlet of the water tank is connected with a water pipe, and the other end of the water pipe is connected to the first water flow detector. Instruction manual

In the above structure, the water pipe is connected in series with a heat dissipating device, the heat dissipating device is made of a heat conductive material, and a hollow cavity body penetrating the two sides is disposed therein, and the heat dissipating device is coated with an electromagnetic heating device heating device;

In the above structure, the water tank further includes a left and right box body; the left and right boxes are interposed between the left and right boxes, and the left box body is provided with a water outlet and an exchange nozzle, and the right box is provided There is a water inlet and an exchange nozzle, and the exchange ports of the left and right boxes are connected;

In the above structure, the left case or the right case has the same structure, and includes a left case, a right case, and a heating element, and the heating element is interposed between the left and right cases; the left case and the right case The inner wall is provided with a plurality of parallel spacers, the spacers are separated to form a water flow passage, and the left casing is provided with an inlet and an outlet connecting the left casing and the right casing water flow passage; the spacer is arched , the highest point of the middle part is set towards the exit direction;

In the above structure, the spacer is provided with a through hole, and the through hole is disposed at a highest point of the arched spacer;

In the above structure, the spacer includes a left segment and a right segment, and the left segment and the right segment are obliquely connected to each other or have an arched arc surface;

In the above structure, the left casing or the right casing has the same structure, and includes a left casing, a right casing and a heating element, and the heating body is interposed between the left and right casings; The inlet, the inner wall of the right casing is separated by a spiral partition to form a water flow passage communicating with the inlet; the left casing is provided with an outlet, and the inner wall of the left casing is separated by a spiral spacer to form a water flow communicating with the outlet. a passage hole for connecting the water flow passages in the left and right casings; the spiral spacer is provided with a through hole, and the through hole is disposed in a direction opposite to the water outlet;

In the above structure, the water tank is further provided with an anti-drying thermostat, and the anti-drying thermostat is electrically connected to the controller;

In the above structure, it further includes a temperature detector electrically connected to the controller, and the temperature detector is disposed at the water outlet of the water tank.

The invention has the beneficial effects that the water flow sensor is arranged in the water inlet and the water outlet of the water tank, and the water inlet sensor is uniformly connected, so that not only the water inlet condition can be monitored, but also the water outlet is monitored, and the water outlet is further provided with a temperature. The detector allows the product to detect the flow rate of the water inlet and outlet and the water outlet without detecting the temperature of the heating element itself. Description

The temperature is to achieve effective prevention of dry burning to ensure the safety of the product. DRAWINGS

The specific structure of the present invention is described in detail below with reference to the accompanying drawings:

Figure 1 is a schematic view of the overall structure of the present invention;

Figure 2 is an exploded view of the water tank structure of the present invention;

Figure 3 is a structural exploded view of the arched water tank of the first embodiment of the present invention;

Figure 4 is a schematic view showing the structure of a first structural form of the arched water tank of the first embodiment of the present invention;

Figure 5 is a schematic view showing the structure of a second structural form of the arched water tank of the first embodiment of the present invention;

6 is a schematic structural view of a left casing of a spiral waterway water tank according to a second embodiment of the present invention; FIG. 7 is a schematic structural view of a right casing of a spiral waterway water tank according to a second embodiment of the present invention; FIG. 8 is a second embodiment of the present invention. Schematic diagram of the structure of the anti-drying electromagnetic water heater formed by the spiral water tank.

1-water tank; 2-series water pipe; 3-anti-single-burning thermostat; 4-water pipe; 5-first water flow detector; 6-second water flow detector; 7-heat sink; 8-temperature detector; 9-wire tray; 10-wire tray lead; 1 1-right housing; 12-left housing; 1 3-heating body; 14-seal ring; 101-inlet; 103-outlet; Exchange nozzle; 11 1-inlet; 112-outlet; 1 1 3-slit; 114-through hole; 1 15-pass water hole; 1 16-water flow channel; 1 17-spiral septum. detailed description

The technical contents, structural features, objects and effects achieved by the present invention will be described in detail below with reference to the embodiments.

Referring to FIG. 1 and FIG. 2, the present invention relates to an anti-drying electromagnetic water heater, which comprises a water tank 1, a serial water pipe 2, an anti-drying thermostat 3, a water pipe 4, a controller, a first water flow detector 5, The second water flow detector 6, the heat sink 7, and the temperature detector 8. The water tank 1 includes a left and right box body and a wire tray 9 , and the coil disk 9 is sandwiched between the left and right boxes, and leads to the wired disk lead 10 . The left box body is provided with a water outlet 103 and a right box body. There is a water inlet 101, and the left and right boxes are also provided with an exchange nozzle 104, preferably, on the left and right cabinets. Description

The water inlet 104 and the respective water inlet 101 or water outlet 103 should be disposed on different sides of the tank, so that the water inlet 104 can be connected through a series of water pipes 2, so that the water flows through the right tank inlet 101, fully After heating around the left and right sides of the wire reel 9 and then flowing out from the left tank water outlet 103, the heat utilization efficiency of the wire reel 9 is improved.

In order to prevent dry burning more effectively, the first water flow detector 5 and the second water flow detector 6 are respectively disposed in the water inlet 101 and the water outlet 103, and the first water flow detector 5 and the second water flow detector 6 are connected. The controller, the controller controls the output connection cable pan 9, so that not only the water inlet condition can be monitored, but also the water discharge can be monitored. Further, a temperature detector 8 may be disposed at the water outlet 1 G 3 of the water tank 1, and the temperature detector 8 is also connected to the controller, so that the product can detect the water inlet without detecting the temperature of the heating element itself. The flow rate of the water outlet and the temperature of the water outlet are used to effectively prevent dry burning to ensure the safety of the product.

Further, the water inlet 101 can be connected to the water pipe 4 first, and a heat sink 7 can be connected in series to the water pipe 4, and the first water flow sensor 5 is disposed at the other end of the water pipe 4. The additional heat dissipating device 7 is made of a heat conductive material, and has a hollow cavity penetrating through the two sides. The heat dissipating device 7 is coated with an electromagnetic heating device heat generating device, so that when the water flows through the cavity of the heat dissipating device 7 The heat radiated from the heating device (such as bridge stack, IGBT, etc.) of the electromagnetic heating device attached to it can be taken away by it, and the purpose of preheating the water flow is more efficient, so that the product is more environmentally friendly.

The structure of the above-mentioned water tank 1 including the left and right cabinets can adopt various structures to enhance the anti-drying effect of the product. Embodiment 1:

Referring to Fig. 3, in the present embodiment, the water tank 1 includes left and right tanks, which are an arched water tank, which includes a right casing 11, a left casing 12, and a heating element 13, a right casing 11 and a left casing 12. The heating element 13 is interposed therebetween. In order to ensure a good sealing connection between the left casing 12 and the right casing 11, a sealing groove is provided on the inner walls of the left casing 12 and the right casing 11, and a sealing ring 14 is provided in the sealing groove.

The left casing 12 and the inner wall of the right casing 11 correspond to a plurality of mutually parallel spacers 11 3 . Instruction manual

A water flow passage 116 is formed in the partition, and the partition 11 3 - end is not closed on the left casing 12 or the right casing 11 (or the water passage hole 115 is provided on the partition 113), and the adjacent spacer 113 is not The closed end or the water passing hole 115 is disposed at a dislocation interval, so that the inner wall of the left and right housings 12 and 11 at both ends separates the water flow passage of the meandering S-shaped circuit, thereby effectively increasing the flow distance after the water flow enters. , make sure it is fully heated. On the left housing 12 (which may also be the right housing 11), an inlet 111 and an outlet 112 for connecting the left housing 12 and the right housing 11 water flow passage 116 are provided, where the inlet 111 and the outlet 112 are a single left box. For the body or the right case, when the two combinations constitute the water tank, the outlet 111 of the left tank is opposite to the water outlet 103, the inlet 111 is connected to the outlet 1 11 of the right tank, and the inlet 111 of the right tank is relatively advanced. Nozzle 1 01. Unlike the conventional water flow passage of the tubular circuit, the spacer 11 3 is arched in this embodiment, that is, the spacer 113 is provided with the highest position relative to the rest of itself, and the plurality of spacers 113 are provided. The highest point is set in the direction of the outlet 112, that is, the highest point of the plurality of spacers 11 3 is on the same line as the water outlet, or approximately on the same straight line, thereby effectively ensuring that the product is heated in the water flow passage 116 during use. After the water forms water vapor, the remaining water pressure bridge is pressed to the highest point, and the bubble is not directly formed to block the water flow passage 116, causing local dry burning problem.

Preferably, in addition to designing the spacer 11 3 to have an arch shape having the highest position, the air hole 114 is also disposed correspondingly at the highest point of the arch spacer 113. Preferably, the air hole 114 is disposed at the highest level. At the point, thus, based on the structural relationship between the highest point and the outlet 112, the added through hole 114 is equivalent to communicating with the outlet 112, and once the water vapor is generated during the heating of the water, it is pushed to the highest point, and then passes through the air hole. 114 is discharged toward the outlet 112, thereby avoiding the hidden danger of the product caused by the bubble generation.

4 is a schematic view showing the structure of the first structural form of the arched water tank structure. In this embodiment, the spacer 113 has an arched curved surface, and the highest point of the curved surface of the arched curved surface partition 11 is opposite to the outlet 112, and A through hole 114 is provided correspondingly at the highest point.

5 is a schematic structural view of a second structural form of the water tank structure. In this embodiment, the spacer 113 includes a left segment and a right segment, and the left segment and the right segment are obliquely connected to each other, and the angle between the left segment and the right segment is greater than 180 degrees. One side is opposite to the outlet 112, and the air vent 114 is disposed corresponding to the junction between the left and right sections of the spacer 113 (i.e., the highest point).

Further, as an alternative, the air vent 114 of the spacer 11 3 is on the spacer 113 Instruction manual

The gap formed by the upper surface is formed. Embodiment 2:

Referring to Figures 6 and 7, in the present embodiment, the water tank 1 is a spiral water tank, which includes a left casing 12, a right casing 11 and a heating element (not shown), wherein the heating element is sandwiched on the left, Between the right casings 12, 11 and preferably in the shape of a disk, in order to ensure a good sealing connection between the left casing 12 and the right casing 11, a seal is provided on the inner walls of the left casing 12 and the right casing 11. A groove is provided in the groove and the sealing groove.

An outlet 112 is disposed on the left casing 12, and a water flow passage communicating with the outlet 112 is formed on the inner wall of the left casing 12 by a spiral partition 117. The water flow passage is also called a spiral and a disk-shaped heating element 4. The correspondence then completes the heat exchange. The right casing 11 is provided with an inlet 111, and the inner wall of the right casing 11 is also separated by a spiral spacer 117 to form a water flow passage communicating with the inlet 111. Similarly, here, the inlet 111 and the outlet 112 are in the case of a single left box or a right box. When the two combinations constitute a water tank, the outlet 111 of the left tank is opposite to the water outlet 103, and the inlet 111 is right and right. The outlets 111 of the water tank are connected, and the inlet 111 of the right tank is opposed to the water inlet 101. The left casing 12 is disposed corresponding to the spiral water flow passage of the right casing 11, and the heat generating body is provided with a through hole. Preferably, the through hole corresponds to the contraction center of the water flow passage in the left casing 12 and the right casing 11. Thereby, the left and right casings 12, 11 can communicate with the water flow passages of the two through the through holes. Different from the water flow channel of the tubular circuit of the conventional water tank structure, in the embodiment, the air vent 114 is provided on the spiral spacer 117, and the air vent 114 is disposed in the direction of the outlet 112, that is, the air vent 114 is equivalent to the outlet 112. . Therefore, the product can be effectively ensured that the water heated by the water in the water flow channel will press the edge of the spiral spacer 117 due to the remaining water pressure during use, and the water vapor will be pushed to the highest level during the water heating process. Then, it is discharged through the air hole 114 to the outlet 112, thereby avoiding the hidden danger of the product caused by the bubble generation.

Further, as an alternative, the air vent 114 of the spiral spacer 117 is formed by a notch formed on the surface of the spiral spacer 117.

The safety of the anti-drying electromagnetic water heater of the present invention can be further enhanced by adding an anti-drying temperature sensor 3, as shown in Fig. 8, the left tank of the water tank or the left of the right tank in the above structure Description

The housing 12 or the right housing 11 is provided with an anti-drying temperature sensor. The key point is that the anti-drying temperature sensor 5 should be disposed corresponding to the outlet 112, and is usually disposed on the outer wall of the left housing 12 or the right housing 11. However, by detecting the maximum temperature of the water in the water flow passage in the water tank, the water temperature can be further prevented from being excessively high, and dry burning can be avoided.

The above description is only an embodiment of the present invention, and thus does not limit the scope of the patent of the present invention. For example, the spacer 113 may have a circular arc shape, a fishtail or the like, and has a shape having a highest point on a plane, and corresponds to the highest position at this position. The stomata can achieve the purpose of this patent. Therefore, any equivalent structural transformation made by using the specification and the drawings of the present invention, or directly or indirectly applied to other related technical fields, is equally included in the scope of patent protection of the present invention. .

Claims

Claim

An anti-dry-burning electromagnetic water heater, comprising: a water tank, a controller, a first water flow detector and a second water flow detector; wherein the water tank is provided with a water inlet and a water outlet, wherein the water tank is provided with heat The exchange channel is in communication with the water inlet and the water outlet; the first water flow detector is disposed at the water inlet of the water tank, and the second water flow detector is disposed at the water outlet of the water tank; the first water flow detector and the second water flow detector The electrical connection controller is input; the water tank includes a wire tray, and the controller electrical output connection cable tray.

2. The anti-thousand-burn electromagnetic water heater according to claim 1, wherein: the water inlet of the water tank is connected with a water pipe, and the other end of the water pipe is connected to the first water flow detector.

3. The anti-thousand-burn electromagnetic water heater according to claim 2, wherein: the water pipe is connected in series with a heat dissipating device, and the heat dissipating device is made of a heat conductive material, and the hollow cavity penetrating through the two sides is disposed therein The heat sink is coated with an electromagnetic heating device heating device.

4. The anti-thousand-burn electromagnetic water heater according to claim 1, wherein: the water tank further comprises left and right boxes; and the left and right boxes are interposed between the left and right boxes, and the left box The body is provided with a water outlet and an exchange water inlet, and the right tank body is provided with a water inlet and an exchange water inlet, and the exchange water inlets of the left and right tanks are connected.

The anti-thousand-burn electromagnetic water heater according to claim 4, wherein: the left box body or the right box body has the same structure, and each comprises a left shell, a right shell and a heating element, and between the left and right shells The heat generating body is interposed; the left and right inner walls of the right casing are provided with a plurality of parallel spacers, the spacers are separated to form a water flow passage, and the left shell is provided with a left shell and a right shell. An inlet and an outlet of the body water flow passage; the spacer is arched, and a highest point of the portion is disposed toward the outlet direction.

6. The anti-dry-fired electromagnetic water heater according to claim 5, wherein: the spacer is provided with a through hole, and the through hole is disposed at a highest point of the arched spacer.

7. The anti-thousand-burn electromagnetic water heater according to claim 6, wherein: the spacer comprises a left segment and a right segment, and the left segment and the right segment are obliquely connected to each other or have an arched arc surface. Claim

8. The anti-thousand-burn electromagnetic water heater according to claim 4, wherein: the left cabinet or the right cabinet has the same structure, and includes a left casing, a right casing and a heating body, and between the left and right casings. The heating element is interposed; the right casing is provided with an inlet, and the inner wall of the right casing is separated by a spiral spacer to form a water flow passage communicating with the inlet; the left casing is provided with an outlet for the left shell The inner wall is separated by a spiral spacer to form a water flow passage communicating with the outlet; the heat generating body is provided with a through hole for connecting the water flow passages inside the left and right housings; and the spiral spacer is provided with a through hole. It is stated that the air holes are arranged in the direction of the water outlet.

The anti-drying electromagnetic water heater according to any one of claims 1-8, wherein: the water tank is further provided with an anti-drying thermostat, and the anti-drying thermostat is electrically connected to the controller.

The anti-dry-fired electromagnetic water heater according to any one of claims 1-8, characterized in that it further comprises a temperature detector, the temperature sensor is electrically connected to the controller, and the temperature detector is arranged at the water outlet of the water tank.