Adjustable heat storage heating unit

By utilizing the thermal storage materials and variable frequency circulating water pump system of the thermal storage heating unit at the beginning and end of the heating season, the problem of the difficulty in precisely adjusting the centralized heating system has been solved, achieving flexible heating power adjustment and efficient energy utilization.

CN224003791UActive Publication Date: 2026-03-17SHANDONG SULI POWER TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-04
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

Central heating systems are difficult to adjust precisely according to real-time demand at the beginning and end of the heating season, resulting in energy waste.

Method used

The adjustable thermal storage heating unit heats up the thermal storage material during periods of low energy demand and releases heat when needed. Combined with a variable frequency circulating water pump and an intelligent control system, it enables flexible adjustment of heating power and thermal storage/release modes.

Benefits of technology

It improves energy efficiency, meets diverse heating needs, reduces heat loss, and reduces energy waste.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an adjustable heat storage heating unit, which relates to the technical field of heating equipment and comprises a support frame, a heat storage box is mounted on the inner side of the support frame, an electric controller is mounted on the outer wall of the heat storage box, and a water pumping pipe is fixedly communicated with the bottom surface of the heat storage box. The electric heater is started to heat the heat storage material in the energy valley period, along with the heating process, the temperature of the heat storage material is gradually increased, phase change occurs, a large amount of latent heat is stored, and efficient heat storage is achieved; the intelligent control system is matched with the variable-frequency circulating water pump and the like, so that the heating power and the heat storage and release mode can be flexibly adjusted according to actual requirements, and the energy utilization efficiency is improved; and diversified heating requirements are met.
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Description

Technical Field

[0001] This utility model relates to the field of heating equipment technology, and in particular to an adjustable heat storage heating unit. Background Technology

[0002] Heating refers to the technology of supplying heat to buildings to maintain a certain indoor temperature during the cold season. A heating unit is a combination of equipment that provides heat energy to buildings to maintain a suitable indoor temperature and is widely used in residential, commercial buildings, industrial plants and other places.

[0003] Currently, in centralized heating systems, heat sources are usually configured according to the maximum design load to meet heating needs in extreme cold weather. However, at the beginning and end of the heating season, the outdoor temperature is relatively high, and the building requires less heat. But the centralized heating system is difficult to adjust precisely according to real-time demand and still operates at a higher power. The actual heating demand is far lower than the maximum load, resulting in energy waste. Utility Model Content

[0004] The purpose of this invention is to address the problem in the existing technology that, during the initial and final stages of heating, when outdoor temperatures are relatively high and buildings require less heat, centralized heating systems struggle to adjust precisely according to real-time demand, continuing to operate at higher power levels, resulting in energy waste as actual heating demand is far below maximum load. Therefore, this invention proposes an adjustable thermal storage heating unit.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an adjustable heat storage heating unit, comprising a support frame, a heat storage box installed on the inner side of the support frame, an electric controller installed on the outer wall of the heat storage box, a water pump fixedly connected to the bottom surface of the heat storage box, a water inlet pipe fixedly connected to the top surface of the heat storage box, a variable frequency circulating water pump fixedly connected to the bottom end of the water pump, two variable frequency circulating water pumps being provided, a heating box fixedly connected to the inner wall of the heat storage box, an electric heater installed inside the heating box, a heat storage material filled between the electric heater and the heating box, a spiral heat exchange tube installed inside the heat storage material, the bottom end of the spiral heat exchange tube fixedly connected to the water pump, and the top end of the spiral heat exchange tube fixedly connected to the water inlet pipe.

[0006] Preferably, an insulation layer is fixedly connected between the inner wall of the heat storage box and the outer wall of the heating box.

[0007] Preferably, the outlets of the two variable frequency circulating water pumps are fixedly connected to a water pipe, and the top end of the water pipe is fixedly connected to an insulation pipe.

[0008] Preferably, the top end of the insulation pipe is fixedly connected to a connecting pipe, and one end of the connecting pipe is fixedly connected to a valve.

[0009] Preferably, a servo motor is mounted on the top surface of the valve, and the output shaft of the servo motor is connected to the valve stem via a transmission connection.

[0010] Preferably, one end of the valve is fixedly connected to a connecting pipe.

[0011] Preferably, the electric controller is electrically connected to the electric heater.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, an electric heater is activated during periods of low energy activity to heat the heat storage material. As the heating process progresses, the temperature of the heat storage material gradually increases, undergoes a phase change, and stores a large amount of latent heat, achieving efficient heat storage. When the temperature sensor in the heating area detects that the indoor temperature is lower than the set value, the intelligent control variable frequency circulating water pump is activated. External cold water is drawn into the spiral heat exchange tube through the inlet pipe to exchange heat with the heat storage material in the heating box. Through the cooperation of the intelligent control system and the variable frequency circulating water pump, the heating power and heat storage and release mode can be flexibly adjusted according to actual needs, improving energy utilization efficiency and meeting diverse heating needs.

[0014] 2. In this utility model, the heat insulation layer is set on the outside of the heating box for heat preservation and protection, which greatly reduces the heat loss of the heating box. The hot water extracted from the heat storage box is transported to the external radiator by the variable frequency circulating water pump through the water pipe and the heat insulation pipe. Attached Figure Description

[0015] Figure 1 This utility model provides a structural schematic diagram of an adjustable heat storage heating unit;

[0016] Figure 2 This utility model provides a schematic diagram of the internal structure of the heat storage box of an adjustable heat storage heating unit;

[0017] Figure 3 This utility model proposes an adjustable heat storage heating unit. Figure 1 Enlarged view of the structure at point A in the middle.

[0018] Legend: 1. Support frame; 2. Insulation pipe; 3. Pumping pipe; 4. Water pump; 5. Water supply pipe; 6. Heat storage box; 61. Electrical controller; 62. Heating box; 63. Insulation layer; 64. Heat storage material; 65. Spiral heat exchanger tube; 66. Electric heater; 7. Inlet pipe; 8. Servo motor; 81. Valve; 82. Connecting pipe one; 83. Connecting pipe two. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Example 1: As Figure 1 - Figure 3 As shown, this utility model provides an adjustable heat storage heating unit, including a support frame 1, a heat storage box 6 installed on the inner side of the support frame 1, an electric controller 61 installed on the outer wall of the heat storage box 6, a water pump 3 fixedly connected to the bottom surface of the heat storage box 6, a water inlet pipe 7 fixedly connected to the top surface of the heat storage box 6, a variable frequency circulating water pump 4 fixedly connected to the bottom end of the water pump 3, two variable frequency circulating water pumps 4 are provided, a heating box 62 fixedly connected to the inner wall of the heat storage box 6, an electric heater 66 installed inside the heating box 62, a heat storage material 64 filled between the electric heater 66 and the heating box 62, the heat storage material 64 is a phase change material, a spiral heat exchange tube 65 installed inside the heat storage material 64, the bottom end of the spiral heat exchange tube 65 fixedly connected to the water pump 3, the top end of the spiral heat exchange tube 65 fixedly connected to the water inlet pipe 7, and the electric controller 61 and the electric heater 66 are electrically connected.

[0022] The specific settings and functions of this embodiment are described below. During periods of low energy demand, the electric heater 66 is activated to heat the heat storage material 64. As the heating process progresses, the temperature of the heat storage material 64 gradually increases, undergoes a phase change, and stores a large amount of latent heat, achieving efficient heat storage. When the temperature sensor in the heating area detects that the indoor temperature is lower than the set value, the intelligent control variable frequency circulating water pump 4 is activated. External cold water is drawn into the spiral heat exchange tube 65 through the inlet pipe 7 to exchange heat with the heat storage material 64 in the heating box 62. The heated hot water is output through the pumping pipe 3. Through the cooperation of the intelligent control system and the variable frequency circulating water pump 4, the heating power and heat storage and release mode can be flexibly adjusted according to actual needs, improving energy utilization efficiency and meeting diverse heating needs.

[0023] Example 2: Figure 1 - Figure 3As shown, an insulation layer 63 is fixedly connected between the inner wall of the heat storage box 6 and the outer wall of the heating box 62. The outlets of the two variable frequency circulating water pumps 4 are fixedly connected to water pipes 5. The top end of the water pipes 5 is fixedly connected to an insulation pipe 2. The top end of the insulation pipe 2 is fixedly connected to a connecting pipe 1 82. One end of the connecting pipe 1 82 is fixedly connected to a valve 81. A servo motor 8 is installed on the top surface of the valve 81. The output shaft of the servo motor 8 is connected to the valve stem of the valve 81. One end of the valve 81 is fixedly connected to a connecting pipe 2 83.

[0024] The overall effect of this embodiment is that by setting the insulation layer 63 on the outside of the heating box 62 for heat preservation and protection, the heat loss of the heating box 62 is greatly reduced. The variable frequency circulating water pump 4 uses the water pipe 5 and the insulation pipe 2 to transport the hot water extracted from the heat storage box 6 to the external radiator. With the cooperation of the servo motor 8 and the valve 81, it is convenient for the user to control the flow rate of the insulation pipe 2.

[0025] The device is used and operates as follows: During periods of low energy consumption, the electric heater 66 is activated to heat the heat storage material 64. As the heating process progresses, the temperature of the heat storage material 64 gradually increases, undergoes a phase change, and stores a large amount of latent heat. When the temperature sensor in the heating area detects that the indoor temperature is lower than the set value, the intelligent control variable frequency circulating water pump 4 is activated. External cold water is drawn into the spiral heat exchange tube 65 through the inlet pipe 7 to exchange heat with the heat storage material 64 in the heating box 62. The heated hot water is output through the pump pipe 3 and transported to the external radiator through the water pipe 5 and the insulation pipe 2. The hot water flows in the radiator and dissipates heat into the indoor air through heat transfer, thereby raising the indoor temperature.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An adjustable regenerative heating unit comprising a support frame (1), characterised in that: The inner side of the support frame (1) is provided with a heat storage box (6), the outer wall of the heat storage box (6) is provided with an electric controller (61), the bottom surface of the heat storage box (6) is fixedly connected with a water pumping pipe (3), the top surface of the heat storage box (6) is fixedly connected with a water inlet pipe (7), the bottom end of the water pumping pipe (3) is fixedly connected with a variable frequency circulating water pump (4), the variable frequency circulating water pump (4) is provided with two, the inner wall of the heat storage box (6) is fixedly connected with a heating box (62), the inside of the heating box (62) is provided with an electric heater (66), the electric heater (66) and the heating box (62) are filled with heat storage material (64), the inside of the heat storage material (64) is provided with a spiral heat exchange pipe (65), the bottom end of the spiral heat exchange pipe (65) is fixedly connected with the water pumping pipe (3), and the top end of the spiral heat exchange pipe (65) is fixedly connected with the water inlet pipe (7).

2. The adjustable regenerative heating unit according to claim 1, wherein: The inner wall of the heat storage box (6) and the outer wall of the heating box (62) are fixedly connected with a heat preservation layer (63).

3. The adjustable regenerative heating and ventilating unit according to claim 1, wherein: The water outlets of the two variable frequency circulating water pumps (4) are fixedly connected with a water pipe (5), and the top end of the water pipe (5) is fixedly connected with a heat preservation pipe (2).

4. The adjustable regenerative heating and ventilating unit according to claim 3, wherein: The top end of the heat preservation pipe (2) is fixedly connected with a communication pipe one (82), one end of the communication pipe one (82) is fixedly connected with a valve (81).

5. An adjustable regenerative heating unit according to claim 4, wherein: The top surface of the valve (81) is provided with a servo motor (8), and the output shaft of the servo motor (8) is in transmission connection with the valve rod of the valve (81).

6. An adjustable regenerative heating unit according to claim 5, wherein: One end of the valve (81) is fixedly connected with a communication pipe two (83).

7. The adjustable regenerative heating and ventilating unit according to claim 1, wherein: The electric controller (61) and the electric heater (66) are electrically connected.