A double temperature monitoring method for preventing freezing of a European wall-hanging stove with water as resin material
By using a temperature sensor and a three-way valve to control the water pump and heating device in the heating furnace, dual temperature monitoring and antifreeze functions for the resin material water circuit are achieved, solving the problem of freezing risk in the resin material water circuit and improving the antifreeze effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHANGHAI RINNAI
- Filing Date
- 2026-03-30
- Publication Date
- 2026-06-12
AI Technical Summary
The existing antifreeze function of heating boilers cannot be effectively applied to resin material water circuits, leading to an increased risk of freezing.
Temperature sensors are used to monitor the temperature of the heating water outlet pipes and the domestic water outlet pipes. The operation of the water heating device is controlled by a water pump and a three-way valve to achieve dual temperature monitoring and antifreeze function, including primary and secondary antifreeze mechanisms.
It effectively reduces the risk of freezing of resin material water channels in cold environments, and improves the applicability and safety of antifreeze function.
Smart Images
Figure CN122191805A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of boiler antifreeze technology, and in particular to a dual-temperature monitoring method for antifreeze of European-style wall-hung boilers with resin-based water circuits. Background Technology
[0002] The water pipes of existing heating boilers are usually made of copper. During use, such as... Figure 1 The antifreeze function program shown only uses the heating output temperature as a single criterion. However, copper has a better heat transfer effect, and when the antifreeze function is activated, it can quickly and evenly distribute the residual heat to the heating circuit and the domestic circuit, thus achieving the purpose of antifreeze according to the existing antifreeze function program.
[0003] The aforementioned existing technology, for water channels made of resin materials, cannot achieve the secondary antifreeze function because the thermal conductivity of resin materials is completely different from that of copper materials, resulting in a risk of freezing.
[0004] Therefore, how to improve the antifreeze function of the existing antifreeze program system of the heating boiler when the water circuit is made of resin material, and reduce the risk of freezing when the room temperature is too low in cold winter, has become a technical problem that needs to be solved by those skilled in the art. Summary of the Invention
[0005] In view of the above-mentioned deficiencies of the prior art, the present invention provides a dual-temperature monitoring method for antifreeze of European-style wall-hung boilers with resin water circuits. The purpose is to improve the antifreeze function of the existing antifreeze program system of the heating boiler when the water circuit is made of resin material, and reduce the risk of freezing when the room temperature is too low in cold winter.
[0006] To achieve the above objectives, the present invention discloses a method for monitoring dual-temperature antifreeze of European-style wall-hung boilers with resin-based water circuits, comprising a water heating device, a water pump, and a three-way valve disposed between the water heating device and the heating outlet pipe and the domestic water outlet pipe.
[0007] Both the heating water outlet pipe and the domestic water outlet pipe are equipped with temperature sensors, and temperature data is collected through the corresponding temperature sensors.
[0008] The dual-temperature monitoring method for frost protection includes the following steps:
[0009] When the temperature of the heating outlet water pipe is ≤8℃, the water pump runs until the temperature of the heating outlet water pipe is >12℃, at which point the antifreeze function is deactivated; the water pump stops running after B minutes.
[0010] When the temperature of the heating water outlet pipe or the domestic water outlet pipe is ≤5℃, the water pump operates, the three-way valve switches to connect the water heating device to the heating water outlet pipe, and the water heating device ignites at minimum power.
[0011] When the temperature of the heating water outlet pipe exceeds 30°C, the water heating device stops burning, the three-way valve switches to connect the water heating device to the domestic water outlet pipe, and the water pump continues to run.
[0012] After the three-way valve switches to connect the water heating device and the domestic water outlet pipe for A minutes, the three-way valve switches to connect the water heating device and the heating water outlet pipe, and the water pump stops running after B minutes.
[0013] Preferably, the duration of B minutes is twice that of A minutes.
[0014] More preferably, B minutes is 10 minutes and A minutes is 5 minutes.
[0015] Preferably, when the temperature of the heating outlet water pipe exceeds 12°C, the antifreeze function is deactivated, and the water pump stops operating after 10 minutes.
[0016] Preferably, when the temperature of the heating water outlet pipe or the domestic water outlet pipe is ≤2℃, the European-style wall-hung boiler enters a fault state and displays an icing fault prompt through the human-machine interface.
[0017] The beneficial effects of this invention are:
[0018] This invention improves the antifreeze function of existing heating boiler antifreeze programs when the water circuit is made of resin material (which has poor thermal conductivity), reducing the risk of the appliance freezing when the room temperature is too low in cold winter.
[0019] This invention improves upon the shortcomings of existing antifreeze programs for heating boilers, which are only applicable to European-style wall-hung boilers with copper water pipes (which have good thermal conductivity). It offers better applicability and antifreeze safety, and is suitable not only for European-style wall-hung boilers with copper water pipes, but also for boilers with resin water pipes (which have poor thermal conductivity), thus reducing the risk of appliance freezing.
[0020] The following will further explain the concept, specific structure, and technical effects of the present invention in conjunction with the accompanying drawings, so as to fully understand the purpose, features, and effects of the present invention. Attached Figure Description
[0021] Figure 1 A flowchart of the existing boiler antifreeze procedure is shown.
[0022] Figure 2 This diagram illustrates the structure of a heating boiler heating water outlet pipe and a domestic water outlet pipe with temperature sensors installed in an embodiment of the present invention.
[0023] Figure 3 A flowchart of an antifreeze procedure according to an embodiment of the present invention is shown. Detailed Implementation
[0024] Example: Figure 2 and Figure 3 As shown, a dual-temperature monitoring method for antifreeze of European-style wall-hung boilers with resin-based water circuits includes a water heating device, a water pump, and a three-way valve installed between the water heating device and the heating outlet pipe and the domestic water outlet pipe.
[0025] Temperature sensors are installed in both the heating water outlet pipes and the domestic water outlet pipes to collect temperature data.
[0026] The dual-temperature monitoring method for frost protection includes the following steps:
[0027] When the temperature of the heating outlet water pipe is ≤8℃, the water pump runs until the temperature of the heating outlet water pipe is >12℃; the antifreeze function is deactivated, and the water pump stops running after B minutes; thus achieving the first-level antifreeze function.
[0028] When the temperature of the heating or domestic water outlet pipe is ≤5℃, the water pump operates, the three-way valve switches to connect the water heating device to the heating outlet pipe, and the water heating device ignites, burning at minimum power.
[0029] When the temperature of the heating water outlet pipe exceeds 30℃, the water heating device stops burning, the three-way valve switches to connect the water heating device to the domestic water outlet pipe, and the water pump continues to circulate internally.
[0030] When the three-way valve switches to connect the water heating device and the domestic water outlet pipe for A minutes, the three-way valve switches to connect the water heating device and the heating water outlet pipe, and the water pump runs continuously for B minutes before stopping, thus achieving the secondary antifreeze function.
[0031] This invention uses the temperature of both the heating water outlet pipe and the domestic water outlet pipe as the criteria for determining the antifreeze program. If either of them reaches the antifreeze program activation temperature, the antifreeze function will be activated immediately.
[0032] For heating or domestic water outlet pipes with a temperature ≤5℃, the heating appliance of this invention operates at minimum power. When the temperature reaches >30℃, the three-way valve immediately switches to the internal circulation of the domestic water outlet pipe to continue operating, rapidly and evenly transferring heat to the domestic water outlet pipe, thus better achieving the purpose of antifreeze.
[0033] In some embodiments, B minutes is twice the duration of A minutes.
[0034] In some embodiments, B minutes is 10 minutes and A minutes is 5 minutes.
[0035] In some embodiments, when the temperature of the heating outlet water pipe is >12°C, the antifreeze function is deactivated, and the water pump stops operating after 10 minutes.
[0036] In some embodiments, when the temperature of the heating water outlet pipe or the domestic water outlet pipe is ≤2℃, the European-style wall-hung boiler enters a fault state and displays an icing fault prompt through the human-machine interface.
[0037] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.
Claims
1. A dual-temperature monitoring method for antifreeze operation of European-style wall-hung boilers with resin-based water circuits; characterized in that, It includes a water heating device, a water pump, and a three-way valve installed between the water heating device and the heating water outlet pipe and the domestic water outlet pipe; Both the heating water outlet pipe and the domestic water outlet pipe are equipped with temperature sensors, and temperature data is collected through the corresponding temperature sensors. The dual-temperature monitoring method for frost protection includes the following steps: When the temperature of the heating outlet water pipe is ≤8℃, the water pump runs until the temperature of the heating outlet water pipe is >12℃; the antifreeze function is turned off, and the water pump stops running after B minutes. When the temperature of the heating water outlet pipe or the domestic water outlet pipe is ≤5℃, the water pump operates, the three-way valve switches to connect the water heating device to the heating water outlet pipe, and the water heating device ignites at minimum power. When the temperature of the heating water outlet pipe exceeds 30°C, the water heating device stops burning, the three-way valve switches to connect the water heating device to the domestic water outlet pipe, and the water pump continues to run. After the three-way valve switches to connect the water heating device and the domestic water outlet pipe for continuous internal circulation for A minutes, the three-way valve switches to connect the water heating device and the heating water outlet pipe, and the water pump stops after running continuously for B minutes.
2. The method for monitoring dual-temperature antifreeze of European-style wall-hung boilers with resin-based water circuits according to claim 1, characterized in that, B minutes is twice the duration of A minutes.
3. The method for monitoring dual-temperature antifreeze of European-style wall-hung boilers with resin-based water circuits according to claim 2, characterized in that, B minutes is 10 minutes, and A minutes is 5 minutes.
4. The method for monitoring dual-temperature antifreeze of European-style wall-hung boilers with resin-based water circuits according to claim 1, characterized in that, When the temperature of the heating outlet water pipe exceeds 12°C, the antifreeze function is turned off, and the water pump stops operating after 10 minutes.
5. The method for monitoring dual-temperature antifreeze of European-style wall-hung boilers with resin-based water circuits according to claim 1, characterized in that, When the temperature of the heating water outlet pipe or the domestic water outlet pipe is ≤2℃, the European-style wall-hung boiler enters a fault state and displays an icing fault prompt through the human-machine interface.