Floor heating heat storage energy-saving adapter

Abstract

The invention discloses a floor heating heat storage energy-saving adapter which is characterized in that an inorganic hydrated salt composite phase change material packaging structure is adopted as a heat storage and release device, the heat storage and release device and a wall-hanging stove form a thermodynamic system, and an electric three-way regulating valve is connected with a water mixing system through a connecting structure of the electric three-way regulating valve and the water mixing system. The wall-hanging stove serving as a heat source is effectively divided into a floor heating temperature partition and a hydraulic partition. In this way, the comfort level of the low-temperature hot water ground radiation heating system can be improved, the operating environment of the wall-hanging stove is improved, and the obvious energy-saving effect is achieved.

Description

Technical Field

[0001] The invention relates to the field of decentralized heating energy saving, and in particular to energy saving of a low-temperature hot water floor radiation heating system using a household gas wall-mounted boiler as a heat source. Background Art

[0002] There are many users of decentralized heating in my country, and most of the heat sources are household gas wall-mounted boilers. The market sales volume reached 1.96 million units in 2023 alone, and it has been growing year by year. Among the users who install wall-mounted boilers, most of them use low-temperature hot water floor radiant heating systems (hereinafter referred to as "floor heating").

[0003] There are three basic types: Direct drive mode, the wall-mounted boiler is connected to the floor heating radiant coil through the manifold. The advantages of this method are simple system, low failure rate and low cost, but there are disadvantages such as low thermal system efficiency, poor comfort, frequent start and stop, and short equipment life.

[0004] An intermediate heat exchanger is used to connect, and a plate heat exchanger is inserted between the wall-mounted boiler and the floor heating radiation coil. This overcomes the shortcomings of the direct connection system, such as low thermal efficiency, poor comfort, and affected equipment life. However, there is still energy consumption caused by furnace purge due to frequent start and stop of the wall-mounted boiler, and secondary water replenishment is required, making the system more complicated.

[0005] The floor heating water mixing center is used, which is currently the most commonly used form; compared with the intermediate heat exchanger connection, it does not require secondary water replenishment. The disadvantage is that the return water temperature of the wall-mounted boiler is low, which affects the life of the wall-mounted boiler, and the wall-mounted boiler is started and stopped frequently, which cannot effectively save energy.

[0006] The above are all the connection forms of low-temperature hot water floor radiant heating systems currently using user-type wall-mounted boilers. Their common disadvantages are frequent start and stop of the equipment and large heat loss from furnace purge. Calculated based on a 30-minute operation, the purge loss accounts for about 12% of the energy loss, and the average annual loss per household is about 450 yuan.

[0007] In addition, the lower water temperature during the boiler shutdown period affects the overall comfort. Summary of the invention

[0008] The main technical problem solved by the present invention is to provide a floor heating heat storage energy-saving adapter, which can solve the energy loss caused by the frequent start and stop of the wall-mounted boiler and the comfort problem of floor heating users.

[0009] In order to solve the above technical problems, the technical solution adopted by the present invention is: to provide an energy-saving adapter integrating a phase change heat storage system and a water mixing system, which not only solves the adaptation problem of the high water temperature of the wall-mounted boiler heating and the low water temperature of the floor heating system, but also greatly extends the start and stop cycle of the wall-mounted boiler. The higher operating water temperature of the floor heating can still be maintained when the wall-mounted boiler stops running.

[0010] The beneficial effect of the present invention is that the present invention has a significant energy-saving effect and comfort for the wall-mounted boiler floor heating system. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional structural schematic diagram of a preferred embodiment of a floor heating heat storage energy-saving adapter of the present invention; Figure 2 It is a decomposition diagram showing the decomposition structure of the floor heating heat storage energy-saving adapter; The components in the attached drawings are marked as follows: 1. Phase change heat storage device; 2. Mixing water pump; 3. Electric three-way valve regulating valve; 4. Intelligent controller. DETAILED DESCRIPTION

[0012] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0013] See also Figure 1 and Figure 2 , embodiments of the present invention include: A floor heating heat storage energy-saving adapter, including: solving the energy-saving problem of wall-mounted boilers and floor heating, and using a phase change heat storage and heat release solution.

[0014] In the present invention, the connection structure of the electric three-way regulating valve in the water mixing system effectively divides the wall-mounted boiler as a heat source and the floor heating temperature zoning and hydraulic zoning problems, so that the supply and return water temperatures on the left and the supply and return water temperatures on the right do not affect each other.

[0015] The core component of the present invention is a phase change heat storage device, which adopts an inorganic hydrated salt composite phase change material packaging structure and forms a hybrid thermal device together with a wall-mounted boiler. The wall-mounted boiler always operates at the optimal efficiency curve, stores heat when the heat source measures energy surplus, and releases heat during the shutdown period of the wall-mounted boiler, thereby extending the operation and shutdown time of the power system, achieving a significant energy-saving effect, and the water temperature curve is stable, which improves the comfort of the floor heating system.

[0016] The intelligent controller controls according to the indoor temperature and the preset floor heating water supply temperature. The wall-mounted boiler operates according to the optimal temperature setting recommended by the manufacturer. The floor heating water supply temperature is set according to the actual operating conditions, and the room temperature is set according to user needs. The system runs automatically and has power-off memory.

[0017] In one embodiment: The original form is that the wall-mounted boiler is directly connected to the floor heating manifold. During the heating season, the room temperature is maintained at 18°C, the water supply of the wall-mounted boiler is 60°C, and it runs for about 40 minutes in a certain period of time and then stops for 21 minutes, and then runs repeatedly. The annual gas consumption is 2209m³. Monitoring found that the floor overheated during the operation of the wall-mounted boiler (greater than the specified 29°C).

[0018] After connecting the device of the present invention, the room temperature was set to 18°C, the water supply temperature of the wall-mounted boiler was set to 75°C, and the water supply temperature of the floor heating was 42°C. The wall-mounted boiler was observed to run for 95 minutes and stop for 72 minutes. The monitored floor temperature was in the range of 24-27°C. The indoor temperature was highly comfortable, the annual gas consumption was 1916m³, and the energy saving rate was 13%.

[0019] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A floor heating heat storage energy-saving adapter, which currently has no similar products or inventions; it is characterized by: include: The connection structure of the electric three-way regulating valve in the water mixing system effectively divides the temperature and hydraulic zoning of the wall-mounted boiler and floor heating as the heat source.

2. Use an inorganic hydrated salt composite phase change material packaging structure as a heat storage and heat release device to form a thermal system.

3. The floor heating heat storage energy-saving adapter according to claim 1, characterized in that: The connection structure of the electric three-way regulating valve in the water mixing system effectively divides the temperature and hydraulic zoning of the wall-mounted boiler and floor heating as the heat source.

4. The floor heating heat storage energy-saving adapter according to claim 1, characterized in that: An inorganic hydrated salt composite phase change material packaging structure is used as a heat storage and heat release device to form a thermal system.

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