Dry-burn prevention heat storage type hot water supply device

Abstract

The utility model relates to a kind of heat storage hot water supply devices of dry burning prevention, comprising: hot water tank, heating resistance wire is fixedly inserted in hot water tank inner wall bottom;Openable water replenishing pipeline, the water replenishing pipeline is connected hot water tank;Openable water outlet pipeline, the water outlet pipeline is connected hot water tank;Water level probe group, it includes anti-overflow probe, high water level probe, low water level probe and dry burning prevention probe, anti-overflow probe lower end, high water level probe lower end, low water level probe lower end, dry burning prevention probe lower end are respectively corresponding anti-overflow level in hot water tank, high water level, low water level, dry burning prevention level, the dry burning prevention probe lower end is higher than heating resistance wire upper end;Electric control module, it is connected with water level probe group electric signal, and it controls the opening and closure of water replenishing pipeline and water outlet pipeline according to hot water tank water level change.

Description

Technical Field

[0001] This utility model relates to the field of water dispenser technology, specifically, a heat storage hot water supply device. Background Technology

[0002] Chinese patent application CN118902293A discloses a hot water supply device, a water purifier, and a method of use. This device can provide hot water and room temperature water at different temperatures, as well as room temperature sparkling water, ice sparkling water, and ice water, flexibly meeting diverse user needs. The hot water supply device includes: an insulated preheating tank with a built-in heating element, connected to a water supply pipe for replenishing water into the preheating tank and a hot water connecting pipe for outputting hot water from the preheating tank. The preheating tank is connected to an outlet port of a second solenoid valve via the water supply pipe, and a second water pump is installed on the hot water connecting pipe; a heating element located in the hot water output pipe for instant heating of drinking water; and features both heat storage and instant heating functions in the hot water supply process, capable of meeting the demand for large-flow hot water output.

[0003] As can be seen from the above patent, the hot water tank is a relatively important component in the hot water supply device. A heating resistance wire is installed at the bottom of its inner wall, and a water level sensor is also installed. However, when monitoring the water level of the hot water tank, it is generally only monitored whether the hot water tank is at a high or low water level. If the hot water tank drains too quickly, the heating resistance wire will often be higher than the actual water level when the water level is low. This will cause part of the heating resistance wire to be exposed, resulting in dry burning. Dry burning often leads to damage to the heating resistance wire. Utility Model Content

[0004] The purpose of this invention is to provide a heat storage hot water supply device that prevents dry burning. It comprehensively monitors the water level in the hot water tank to prevent the heating resistance wire from being exposed above the water surface due to low water level, thereby avoiding the phenomenon of dry burning of the heating resistance wire.

[0005] The purpose of this utility model is achieved as follows: a heat storage hot water supply device with anti-dry-burning function, comprising:

[0006] A hot water tank, wherein a heating resistance wire is fixedly inserted into the bottom of the inner wall of the hot water tank;

[0007] An openable and closable water supply line, which is connected to a hot water tank;

[0008] An openable and closable water outlet pipe, which is connected to a hot water tank;

[0009] A water level probe assembly is vertically fixed and inserted into a hot water tank. It includes an anti-overflow probe, a high water level probe, a low water level probe, and an anti-dry-burning probe. The lower ends of the anti-overflow probe, the high water level probe, the low water level probe, and the anti-dry-burning probe are distributed from high to low and correspond to the anti-overflow water level, the high water level, the low water level, and the anti-dry-burning water level in the hot water tank, respectively. The lower end of the anti-dry-burning probe is higher than the upper end of the heating resistance wire.

[0010] The electrical control module is connected to the water level probe group by electrical signal. It controls the opening and closing of the water supply line and the water outlet line according to the water level change in the hot water tank. The water supply line is opened when the water level in the hot water tank is at the anti-dry-burning level.

[0011] Furthermore, it also includes a terminal block for electrically connecting the water level probe group and the electronic control module. The terminal block has several input-side wiring ports and several output-side wiring ports. The terminals of the anti-overflow probe, high water level probe, low water level probe, and anti-dry burning probe are detachably plugged into the input-side wiring ports. The output-side wiring ports are connected to the electronic control module via electrical signal lines.

[0012] Furthermore, a support leg is fixed to the bottom of the terminal block, and the support leg is fixedly connected to the top of the hot water tank to support the bottom of the terminal block.

[0013] Furthermore, the water supply pipeline includes:

[0014] The water supply pipe connects to the hot water tank from top to bottom;

[0015] The ambient temperature water tank is located above the hot water tank, and its bottom is connected to the water supply pipe;

[0016] A water supply valve is installed in the water supply pipe and is used to open and close the water supply pipe. The water supply valve is connected to the electrical control module by an electrical signal and is controlled by the electrical control module. The water supply valve is in the open state when the hot water tank is at the anti-dry-burning water level.

[0017] Furthermore, the heating resistance wire is equipped with a heating switch controlled by an electrical control module. When the water level in the hot water tank is at the height of the lower end of the anti-dry burning probe, the heating switch is turned off to disconnect the power supply to the heating resistance wire.

[0018] Furthermore, the top of the hot water tank is provided as a top cover, and the water level probe group is fixedly inserted into the top cover.

[0019] Furthermore, the water outlet pipeline includes:

[0020] The water outlet pipe is connected to the bottom of the hot water tank;

[0021] The outlet valve, located in the outlet pipe, is connected to the electrical control module via an electrical signal and is controlled by the electrical control module.

[0022] The pump, located in the outlet pipe and used to provide power for water output, is connected to the electrical control module via electrical signals and is controlled by the electrical control module.

[0023] Furthermore, the top cover is detachably mounted on the top of the hot water tank.

[0024] The beneficial effects of this utility model are as follows:

[0025] 1. The system utilizes anti-overflow probes, high water level probes, low water level probes, and anti-dry-burning probes to comprehensively monitor the water level in the hot water tank. In particular, it adds monitoring of the anti-dry-burning water level to promptly activate the water supply line to replenish water and prevent the heating resistance wire from being exposed above the water surface and causing dry burning due to excessively low water level. The anti-overflow probe is used to monitor whether the water level in the hot water tank is at the overflow level during the water replenishment process as a last resort.

[0026] 2. Facilitates the installation of the water level probe assembly. During installation, the water level probe assembly and the terminal block can be pre-assembled with the top cover as a whole. First, connect the water level probe assembly to the input side wiring port of the terminal block. When the top cover is placed on the top of the hot water tank, the height position of the water level probe assembly inside the hot water tank can be locked. Attached Figure Description

[0027] Figure 1 This is a schematic diagram illustrating the basic principle of this utility model.

[0028] Figure 2 This is a schematic diagram illustrating an application example of this utility model. Detailed Implementation

[0029] The following will refer to the appendix in the embodiments of this utility model. Figures 1-2 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] like Figure 1 As shown, a heat storage hot water supply device with anti-dry-burning feature is proposed, comprising:

[0031] Hot water tank 1, with a heating resistance wire 9 fixedly inserted into the bottom of the inner wall of hot water tank 1;

[0032] A closable water supply line is provided, which is connected to hot water tank 1.

[0033] A closable water outlet pipe is connected to hot water tank 1.

[0034] A water level probe assembly is vertically fixed and inserted into the hot water tank 1. It includes an anti-overflow probe 5, a high water level probe 6, a low water level probe 7, and an anti-dry-burning probe 8. The lower ends of the anti-overflow probe 5, the high water level probe 6, the low water level probe 7, and the anti-dry-burning probe 8 are distributed from high to low, and correspond to the anti-overflow water level, high water level, low water level, and anti-dry-burning water level in the hot water tank 1, respectively. The lower end of the anti-dry-burning probe 8 is about 5-10mm higher than the upper end of the heating resistance wire 9 (the specific size is not limited) and is located directly above the upper end of the heating resistance wire 9.

[0035] Electronic control module 15, reference Figure 2 As shown, it is electrically connected to the water level probe group, and it controls the opening and closing of the water supply pipeline and the water outlet pipeline according to the water level change in the hot water tank 1.

[0036] Among them, the lower end of the anti-dry-burning probe 8 is higher than the upper end of the heating resistance wire 9, and can be directly aligned with the upper end of the heating resistance wire 9. Once the water level inside the hot water tank 1 reaches the height of the lower end of the anti-dry-burning probe 8, the water supply line will be opened (at the same time, the water outlet line can be closed) to quickly replenish water to the hot water tank 1 until the water level in the hot water tank 1 rises to the high water level, at which point the water supply line will be closed. The function of the anti-overflow probe 5 is to monitor whether the water level in the hot water tank 1 is at the overflow level during the water replenishment process, as a last resort.

[0037] Therefore, this embodiment retains the original high and low water level monitoring methods and adds monitoring methods for preventing dry burning and overflow. In particular, it adds monitoring of the water level to prevent dry burning, so as to prevent the heating resistance wire 9 from being exposed above the water surface and causing dry burning due to the water level being too low, thereby forming a more comprehensive monitoring of the water level of the hot water tank.

[0038] To facilitate wiring operations for the water level probe assembly, such as Figure 2 As shown, the device also includes a terminal block 16 for electrically connecting the water level probe group and the electronic control module 15. The terminal block 16 has four input-side wiring ports 16a and four output-side wiring ports 16b. The terminals of the anti-overflow probe 5, high water level probe 6, low water level probe 7, and anti-dry burning probe 8 are detachably plugged into the input-side wiring ports 16a. The output-side wiring ports 16b are connected to the electronic control module 15 via electrical signal lines.

[0039] As a means of fixing the position of the terminal block 16, a support leg 16c is fixed to the bottom of the terminal block 16. The support leg 16c is fixedly connected to the top of the hot water tank 1 to support the bottom of the terminal block 16.

[0040] The aforementioned water supply pipelines include:

[0041] Water supply pipe 4 connects to hot water tank 1 from top to bottom;

[0042] The ambient temperature water tank 2 is located above the hot water tank 1, and its bottom is connected to the water supply pipe 4;

[0043] The water supply valve 3 is installed in the water supply pipe 4 and is used to open and close the water supply pipe 4. The water supply valve 3 is electrically connected to and controlled by the electronic control module 15. The water supply valve 3 is in the open state when the hot water tank 1 is at the anti-dry-burning water level. The purpose of detecting the water supply flow can be achieved by controlling the opening degree of the water supply valve 3. When the water supply valve 3 is in the open state, the room temperature water flows down from the room temperature water tank 2 into the hot water tank 1 by its own weight, so that the water supply process does not require a pump to generate water power, which can save energy consumption.

[0044] The heating resistance wire 9 is equipped with a heating switch 11 controlled by the power control module 15. When the water level in the hot water tank 1 is at the height of the lower end of the anti-dry-burning probe 8, the heating switch 11 is turned off to disconnect the power supply line of the heating resistance wire 9. That is, when the water level in the hot water tank 1 reaches the anti-dry-burning water level, the power supply line of the heating resistance wire 9 can be quickly disconnected, and the heating resistance wire 9 is disconnected from the power supply 10, so that the heating resistance wire 9 stops heating.

[0045] The top of the hot water tank 1 is a top cover 1a. The water level probe assembly is fixedly plugged into the top cover 1a. The top cover 1a is detachably installed on the top of the hot water tank 1 (the top cover 1a can be installed on the top of the hot water tank 1 by several screws). The terminal block 16 is fixed on the upper surface of the top cover 1a. Therefore, during installation, the water level probe assembly and the terminal block 16 can be pre-assembled with the top cover 1a as a whole. First, the water level probe assembly is connected to the input side wiring port 16a of the terminal block 16. When the top cover 1a is placed on the top of the hot water tank 1, the height position of the water level probe assembly inside the hot water tank 1 can be locked. Then, the electrical control module 15 and the output side wiring port 16b are connected by an electrical signal line, so that the water level probe assembly and the electrical control module 15 form an electrical signal connection relationship.

[0046] The aforementioned water outlet pipelines include:

[0047] Water outlet pipe 13 is connected to the bottom of hot water tank 1;

[0048] The water outlet valve 12, which is installed in the water outlet pipe 13, is electrically connected to the electronic control module 15 and is controlled by the electronic control module 15.

[0049] The pump 14, which is installed in the water outlet pipe 13 and is used to provide water outlet power, is electrically connected to the electrical control module 15 and is controlled by the electrical control module 15.

[0050] When the water level in the hot water tank 1 is at the anti-dry-burning level, both the outlet valve 12 and the pump 14 can be closed, while the water supply valve 3 is open, allowing room temperature water to flow down from the room temperature water tank 2 into the hot water tank 1 by its own weight, so as to quickly replenish the water.

[0051] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "front," and "rear," etc., indicate the orientation or positional relationship 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. Therefore, they should not be construed as limitations on this utility model. In this utility model, it should also be noted that the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to fixed connection, detachable connection, integral molding connection, mechanical connection, or indirect connection through intermediate connecting parts. The specific meaning of the terms in this utility model can be understood according to the specific circumstances.

[0052] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0053] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A heat storage hot water supply device with anti-dry-burning feature, characterized in that, include: A hot water tank (1) has a heating resistance wire (9) fixedly inserted into the bottom of its inner wall; A closable water supply line, wherein the water supply line is connected to a hot water tank (1); A closable water outlet pipeline, wherein the water outlet pipeline is connected to a hot water tank (1); A water level probe group is vertically fixed and inserted into the hot water tank (1) and extends into the hot water tank (1). It includes an anti-overflow probe (5), a high water level probe (6), a low water level probe (7), and an anti-dry-burning probe (8). The lower ends of the anti-overflow probe (5), the high water level probe (6), the low water level probe (7), and the anti-dry-burning probe (8) are distributed from high to low and correspond to the anti-overflow water level, high water level, low water level, and anti-dry-burning water level in the hot water tank (1), respectively. The lower end of the anti-dry-burning probe (8) is higher than the upper end of the heating resistance wire (9). The electrical control module (15) is connected to the water level probe group by electrical signal. It controls the opening and closing of the water supply pipeline and the water outlet pipeline according to the water level change in the hot water tank (1). The water supply pipeline is opened when the water level in the hot water tank (1) is at the anti-dry burning water level.

2. The anti-dry-burning heat storage hot water supply device according to claim 1, characterized in that, It also includes a terminal block (16) for electrically connecting the water level probe group and the electronic control module (15). The terminal block (16) has several input side wiring ports (16a) and several output side wiring ports (16b). The terminals of the anti-overflow probe (5), high water level probe (6), low water level probe (7), and anti-dry burning probe (8) are detachably plugged into the input side wiring ports (16a). The output side wiring ports (16b) are connected to the electronic control module (15) via electrical signal lines.

3. The anti-dry-burning heat storage hot water supply device according to claim 2, characterized in that, The bottom of the terminal block (16) is fixed with a support leg (16c), which is fixedly connected to the top of the hot water tank (1) to support the bottom of the terminal block (16).

4. The anti-dry-burning heat storage hot water supply device according to claim 1, characterized in that, The water supply pipeline includes: Water supply pipe (4) is connected to hot water tank (1) from top to bottom; A room temperature water tank (2) is located above a hot water tank (1), and its bottom is connected to a water supply pipe (4); A water supply valve (3) is installed in the water supply pipe (4) and is used to open and close the water supply pipe (4). The water supply valve (3) is electrically connected to the electrical control module (15) and controlled by the electrical control module (15). The water supply valve (3) is in the open state when the hot water tank (1) is at the anti-dry-burning water level.

5. A heat storage-type hot water supply device for preventing dry burning according to claim 1 or 4, characterized in that, The heating resistance wire (9) is equipped with a heating switch (11) controlled by the power control module (15). When the water level in the hot water tank (1) is at the height of the lower end of the anti-dry burning probe (8), the heating switch (11) is turned off to disconnect the power supply line of the heating resistance wire (9).

6. A heat storage hot water supply device for preventing dry burning according to claim 3, characterized in that, The top of the hot water tank (1) is provided as a top cover (1a), and the water level probe group is fixedly inserted into the top cover (1a).

7. A heat storage hot water supply device for preventing dry burning according to claim 1, characterized in that, The water outlet pipeline includes: Water outlet pipe (13) is connected to the bottom of hot water tank (1); The outlet valve (12) located in the outlet pipe (13) is connected to the electrical control module (15) by electrical signal and is controlled by the electrical control module (15); A pump (14) installed in the outlet pipe (13) and used to provide water power is connected to the electrical control module (15) by electrical signal and controlled by the electrical control module (15).

8. A heat storage hot water supply device for preventing dry burning according to claim 6, characterized in that, The top cover (1a) is detachably mounted on the top of the hot water tank (1).

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