Heater scale detection system

Abstract

The invention discloses a heater scale detection system, which comprises a heater, a main control module and a plurality of temperature sensors, and is characterized in that each temperature sensor is connected with the main control module; the main control module comprises an acquisition unit, a calculation unit and a first identification unit. According to the technical scheme, the first temperature value of the surface of the heater and the second temperature value of the liquid are detected through the temperature sensor, the main control module uses the difference value between the first temperature value and the second temperature value as the basis for identifying the scale amount of the heater, and therefore the accuracy of detecting the scale amount of the surface of the heater is improved.

Description

Technical Field

[0001] The present invention relates to the field of intelligent detection technology, and more specifically to a heater scale detection system. Background Art

[0002] In order to meet people's demand for hot water, there are various heating devices on the market, among which faucet heating devices are the most widely used. In order to realize the instant heating function of the faucet, a heater needs to be installed in the faucet. Those skilled in the art know that after the faucet is used for a long time, scale will appear on the surface of the heater inside it. When the amount of scale reaches a certain level, it will seriously affect the heat conduction effect of the heater to the outside, and then affect the heating efficiency of the faucet and the user experience. In addition, scale also affects the service life of the faucet. Scale affects the heat conduction of the heater, and the temperature of the heating elements and insulating elements inside the heater will rise. When the temperature of the heater reaches a certain level, it may cause the heating element to fuse and the insulation of the insulating element to fail.

[0003] In the prior art, the amount of scale on the heater surface is mainly determined based on the surface temperature of the heater. However, this method has poor detection effect and it is difficult to accurately determine the amount of scale on the heater surface. Summary of the invention

[0004] In order to solve the above technical problems, the object of the present invention is to provide a heater scale detection system.

[0005] The technical solution adopted by the present invention to solve the problem is:

[0006] A heater scale detection system comprises a heater, a main control module and a plurality of temperature sensors, wherein the temperature sensors are respectively used to detect the surface temperature and liquid temperature of the heater, and each of the temperature sensors is respectively connected to the main control module;

[0007] The main control module comprises:

[0008] an acquisition unit, configured to acquire the surface temperature and the liquid temperature of the heater through the temperature sensor, and define the surface temperature of the heater as a first temperature value and the liquid temperature as a second temperature value;

[0009] A calculation unit, configured to calculate a difference between the first temperature value and the second temperature value, and define the difference as a target temperature difference;

[0010] The first identification unit is used to identify the amount of scale on the surface of the heater according to the target temperature value.

[0011] As a further improvement of the above technical solution, the main control module also includes:

[0012] A setting unit, used to set a temperature threshold;

[0013] A first judging unit, used to judge whether the target temperature difference is greater than the temperature threshold;

[0014] The control unit is used to output a confirmation signal when the target temperature difference is greater than the temperature threshold.

[0015] As a further improvement of the above technical solution, the main control module also includes:

[0016] a second judging unit, used to judge whether the heater is powered on;

[0017] When the heater is powered on, the calculation unit calculates the difference between the first temperature value and the second temperature value, and defines the difference as a target temperature difference.

[0018] As a further improvement of the above technical solution, the setting unit further includes setting a time threshold;

[0019] The main control module also includes:

[0020] A statistical unit, used for counting the duration of power-on of the heater after the heater is started and powered on;

[0021] A third judging unit, used to judge whether the power-on duration is greater than the time threshold;

[0022] When the power-on duration is greater than the time threshold, the calculation unit calculates the difference between the first temperature value and the second temperature value, and defines the difference as a target temperature difference.

[0023] As a further improvement of the above technical solution, the setting unit further includes setting a plurality of temperature intervals and a plurality of scale levels, and the temperature intervals correspond to the scale levels one by one;

[0024] The main control module also includes:

[0025] A second identification unit, used to identify the temperature interval in which the target temperature difference is located and the corresponding scale level;

[0026] The control unit is also used to output the current scale level.

[0027] As a further improvement of the above technical solution, the system further includes an alarm module, which is connected to the main control module. The alarm module takes an alarm action after receiving the confirmation signal.

[0028] As a further improvement of the above technical solution, the system further includes a scale cleaning module, and the main control module is connected to the scale cleaning module;

[0029] The control unit in the main control module is also used to control the scale cleaning module to start when the target temperature difference is greater than the temperature threshold.

[0030] The beneficial effect of the present invention is that the technical solution detects the first temperature value of the heater surface and the second temperature value of the liquid through the temperature sensor, and the main control module uses the difference between the first temperature value and the second temperature value as the basis for identifying the amount of scale on the heater, thereby improving the accuracy of detecting the amount of scale on the heater surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention will be further explained below in conjunction with the accompanying drawings and specific implementation methods.

[0032] Figure 1 It is a structural schematic diagram of the present invention. DETAILED DESCRIPTION

[0033] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0034] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] In the description of the present invention, the meaning of "several" is one or more, the meaning of "more" is more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of the first and the second, it is only for the purpose of distinguishing the technical features, and it cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features. In the description of the present invention, unless otherwise clearly defined, the terms such as "set", "install", and "connect" should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meaning of the above terms in the present invention in combination with the specific content of the technical solution.

[0036] Reference Figure 1The present application discloses a heater scale detection system, a first embodiment of which comprises a heater, a main control module and a plurality of temperature sensors, wherein the temperature sensors are respectively used to detect the surface temperature and the liquid temperature of the heater, and each of the temperature sensors is respectively connected to the main control module;

[0037] The main control module comprises:

[0038] an acquisition unit, configured to acquire the surface temperature and the liquid temperature of the heater through the temperature sensor, and define the surface temperature of the heater as a first temperature value and the liquid temperature as a second temperature value;

[0039] A calculation unit, configured to calculate a difference between the first temperature value and the second temperature value, and define the difference as a target temperature difference;

[0040] The first identification unit is used to identify the amount of scale on the surface of the heater according to the target temperature value.

[0041] Specifically, in this embodiment, the temperature sensor detects a first temperature value of the heater surface and a second temperature value of the liquid. The main control module uses the difference between the first temperature value and the second temperature value as a basis for identifying the amount of scale on the heater, thereby improving the accuracy of detecting the amount of scale on the heater surface.

[0042] As a further preferred implementation, in this embodiment, the main control module further includes:

[0043] A setting unit, used to set a temperature threshold;

[0044] A first judging unit, used to judge whether the target temperature difference is greater than the temperature threshold;

[0045] The control unit is used to output a confirmation signal when the target temperature difference is greater than the temperature threshold.

[0046] In this embodiment, the main control module uses the difference between the first temperature value and the second temperature value as a basis for judging the amount of scale on the surface of the heater. When the difference between the first temperature value and the second temperature value is greater than the temperature threshold, it proves that there is an obstacle to heat conduction between the heater and the liquid, indicating that there is a lot of scale on the surface of the heater that needs to be cleaned in time.

[0047] As a further preferred implementation, in this embodiment, the main control module further includes:

[0048] a second judging unit, used to judge whether the heater is powered on;

[0049] When the heater is powered on, the calculation unit calculates the difference between the first temperature value and the second temperature value, and defines the difference as a target temperature difference.

[0050] In practical applications, this embodiment can determine whether the heater is started and powered on by configuring a current sensor, and the main control module is connected to the current sensor.

[0051] Further as a preferred implementation, in this embodiment, the setting unit further includes setting a time threshold;

[0052] The main control module also includes:

[0053] A statistical unit, used for counting the duration of power-on of the heater after the heater is started and powered on;

[0054] A third judging unit, used to judge whether the power-on duration is greater than the time threshold;

[0055] When the power-on duration is greater than the time threshold, the calculation unit calculates the difference between the first temperature value and the second temperature value, and defines the difference as a target temperature difference.

[0056] In order to further improve the accuracy of scale detection, this embodiment needs to detect the liquid temperature after it stabilizes. For this purpose, this embodiment sets a time threshold. When the power-on duration is greater than the time threshold, it proves that the liquid temperature is stable at this time. At this time, it is more accurate to use the target temperature difference as the basis for judging the scale amount on the heater surface.

[0057] As a further preferred implementation, in this embodiment, the setting unit further includes setting a plurality of temperature intervals and a plurality of scale levels, and the temperature intervals correspond to the scale levels one by one;

[0058] The main control module also includes:

[0059] A second identification unit, used to identify the temperature interval in which the target temperature difference is located and the corresponding scale level;

[0060] The control unit is also used to output the current scale level.

[0061] As a further preferred implementation, this embodiment further includes an alarm module, which is connected to the main control module, and which takes an alarm action after receiving the confirmation signal. Of course, in actual applications, the alarm module can also be configured with a display function, and the main control module can output a confirmation signal and a scale level to the outside through the alarm module.

[0062] As a further preferred implementation, the present embodiment further comprises a scale cleaning module, and the main control module is connected to the scale cleaning module;

[0063] The control unit in the main control module is also used to control the scale cleaning module to start when the target temperature difference is greater than the temperature threshold.

[0064] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly or indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A heater scale detection system, characterized in that: It includes a heater, a main control module and a plurality of temperature sensors, wherein the temperature sensors are used to detect the surface temperature of the heater and the liquid temperature, respectively, and each of the temperature sensors is connected to the main control module respectively; The main control module comprises: an acquisition unit, configured to acquire the surface temperature and the liquid temperature of the heater through the temperature sensor, and define the surface temperature of the heater as a first temperature value and the liquid temperature as a second temperature value; A calculation unit, configured to calculate a difference between the first temperature value and the second temperature value, and define the difference as a target temperature difference; The first identification unit is used to identify the amount of scale on the surface of the heater according to the target temperature value.

2. A heater scale detection system according to claim 1, characterized in that: The main control module also includes: A setting unit, used to set a temperature threshold; A first judging unit, used to judge whether the target temperature difference is greater than the temperature threshold; The control unit is used to output a confirmation signal when the target temperature difference is greater than the temperature threshold.

3. A heater scale detection system according to claim 2, characterized in that: The main control module also includes: a second judging unit, used to judge whether the heater is powered on; When the heater is powered on, the calculation unit calculates the difference between the first temperature value and the second temperature value, and defines the difference as a target temperature difference.

4. A heater scale detection system according to claim 2, characterized in that: The setting unit also includes setting a time threshold; The main control module also includes: A statistical unit, used for counting the duration of power-on of the heater after the heater is started and powered on; A third judging unit, used to judge whether the power-on duration is greater than the time threshold; When the power-on duration is greater than the time threshold, the calculation unit calculates the difference between the first temperature value and the second temperature value, and defines the difference as a target temperature difference.

5. A heater scale detection system according to claim 2, characterized in that: The setting unit further includes setting a plurality of temperature intervals and a plurality of scale levels, wherein the temperature intervals correspond to the scale levels one by one; The main control module also includes: A second identification unit, used to identify the temperature interval in which the target temperature difference is located and the corresponding scale level; The control unit is also used to output the current scale level.

6. A heater scale detection system according to claim 1, characterized in that: It also includes an alarm module, which is connected to the main control module. After receiving the confirmation signal, the alarm module takes an alarm action.

7. A heater scale detection system according to claim 1, characterized in that: It also includes a scale cleaning module, and the main control module is connected to the scale cleaning module; The control unit in the main control module is also used to control the scale cleaning module to start when the target temperature difference is greater than the temperature threshold.

Images