Energy-saving central heating system

Abstract

This utility model relates to the field of heating system technology, specifically an energy-saving centralized heating device, including a heating device, a dual-drive circulation pump, a heat exchange system, and a centralized heating system. The heating device includes a water inlet and an instant hot water device (1) connected to the water inlet by a pipeline. The instant hot water device heats the water entering the instant hot water device 1 and transports the heated water through a pipeline to a buffer insulated water tank. The buffer insulated water tank transports the hot water through a pipeline to an internal circulation pump 3, and the heat energy of the heating components is supplied to the centralized heating device through the heat exchange device. The hot water that has completed the heat exchange is transported through a pipeline to the instant hot water device for repeated heating. By using the heat exchange device to heat the heating device, the problem of large heat loss in the traditional centralized heating mode is avoided, and the equipment cost, maintenance, operation costs and energy consumption are significantly reduced.

Description

Technical Field

[0001] This utility model relates to the field of heating system technology, specifically an energy-saving centralized heating system. Background Technology

[0002] Currently, building heating systems fall into two main categories: 1. Decentralized heating: Self-built small boiler rooms, gas wall-hung boilers, air conditioners, electric heating films, graphene, electric radiators, dual-supply systems, five constant systems, heating cables, water source heat pumps, ground source heat pumps, air source heat pumps, etc. have the advantages of flexible use and quick start-up, but also have the disadvantages of generally poor heating effect and comfort, high operating costs, and potential safety hazards.

[0003] 2. Central heating: Advantages: Good heating effect, high system safety, energy saving and environmental protection; Disadvantages: High construction and operation costs, high risk of single point of failure, long heating cycle, and low adoption rate.

[0004] In existing technologies, centralized heating systems suffer from significant heat loss during heat transmission through heat pipelines. While centralized heating offers advantages such as better heating performance and energy efficiency, the long pipelines from the heating station to the heat exchange station result in substantial heat loss during transmission, a drawback that cannot be ignored. Furthermore, existing centralized heating systems suffer from high construction and installation costs and a high rate of single-point failures due to their complex structure.

[0005] In view of this, the present invention proposes an energy-saving centralized heating system to solve the problems mentioned in the background art. Utility Model Content

[0006] This utility model provides heating to the heating system through a heat exchange device, reducing the need for a large-volume main pipeline from the heating station to the heat exchange station. It allows for direct heating in a single-unit-per-building or multi-unit-per-building mode, avoiding the significant heat loss problem in traditional centralized heating systems. This greatly reduces energy consumption, equipment costs, and related maintenance expenses. Therefore, this utility model was completed.

[0007] This utility model provides an energy-saving centralized heating system, including a heating device, a dual-drive circulating pump 3, and a heat exchange device 4. The heating device includes... Water inlet 6: supplies water to the heating system, central heating system 5, and domestic hot water system 9; Instant hot water device 1: It is connected to the water inlet 6 through a pipeline and is used to heat the water entering the instant hot water device 1 and transport the heated water to the buffer insulated water tank 2 through the pipeline. Buffer and heat preservation water tank 2: Stores and keeps the water heated by the instant hot water device 1 at a constant temperature, and transports the hot water to the circulation system through pipes; Dual-drive circulation pump 3: The dual-drive circulation pump 3 includes an internal circulation pump 31 and an external circulation pump 32. The internal circulation pump 31 provides power to the heating device, causing the water inside the heating device to flow and transporting hot water through pipes to the first heat exchanger 41. The external circulation pump 32 provides power to the water flowing out of the second heat exchanger 42 into the building's central heating device, so that the water in the building's internal heating network is circulated. The heat exchange device includes a heat exchange chamber 4 and a first heat exchanger 41, a second heat exchanger 42, and a third heat exchanger 43 disposed inside the heat exchange chamber 4. The first heat exchanger 41 is connected to the heating system via a pipeline, the second heat exchanger 42 is connected to the central heating device 5 via a pipeline, and the third heat exchanger 43 is connected to the domestic hot water device 9 via a pipeline. The first heat exchanger 41 supplies heat energy from the heating device to the heat exchange chamber 4. The second heat exchanger 42 and the third heat exchanger 43 exchange heat energy through the heat exchange chamber 4 and then supply it to the central heating device 5 and the domestic hot water device 9. The first heat exchanger 41 delivers heat energy to the heat exchange chamber 4, and the hot water that has completed the heat exchange is delivered to the instant hot water device 1 via a pipeline for repeated heating. The second heat exchanger 42 delivers heat energy to the central heating device 5, and the hot water circulates through a pipeline to heat the central heating device 5.

[0008] Furthermore, after the second heat exchanger 42 acquires heat energy, it delivers hot water to the central heating device 5 through the heating outlet 52. After the central heating device 5 is used up, it delivers hot water from the heating return outlet 51 to the second heat exchanger 42 to replenish the heat energy.

[0009] Furthermore, after the third heat exchanger 43 acquires heat energy, it delivers hot water to the domestic hot water device 9 through the domestic hot water outlet 91 for use.

[0010] Furthermore, a first one-way valve 7 is installed on the pipe connecting the water inlet 6 and the instant hot water device 1 to prevent water entering the heating system from being lost through the water inlet 6, and to automatically replenish water when the water in the heating device is insufficient.

[0011] Furthermore, the water inlet 6 is connected to the second heat exchanger 42 via a pipe, and a second one-way valve 8 is installed on the connected pipe to prevent water entering the second heat exchanger 42 from being lost through the water inlet 6, and to automatically replenish water when the water volume inside the central heating device is insufficient.

[0012] Furthermore, the water inlet 6 is connected to the domestic hot water device 9 through a third heat exchanger 43 to supply water to the domestic hot water device 9.

[0013] Furthermore, the electrical appliances in the heating system are powered by an external power source, and the centralized pipe heating system 5 is powered by an external circulation pump 32, which circulates the water inside the system.

[0014] Furthermore, the centralized heating system 5 includes Heat dissipation terminals: radiators, underfloor heating, and fan coil units, etc. Distribution components: Pipes and auxiliary equipment connecting the centralized pipe heating system and the radiator terminals; Filters: Filter impurities in pipes to protect pipes and equipment from clogging.

[0015] Furthermore, this device can be used in a manner where one unit is installed per building or one unit is installed across multiple buildings.

[0016] Compared with existing technologies, the energy-saving centralized heating system provided by this utility model has the following technical advantages: This utility model provides an energy-saving centralized heating system. Through a single-unit-per-building or multi-unit-per-building approach, it features a small installed capacity and low equipment and maintenance costs. It solves the problems of high cost and single-point failure in traditional centralized heating, while also overcoming the low energy efficiency of decentralized heating. Heating is achieved through a heat exchange device, reducing the flow and number of water points in the main heating pipes and radiator terminals, significantly lowering energy costs. Separate water circulation within the heating unit and the centralized heating unit 5 reduces heat loss from hot water and also reduces energy consumption during water circulation, further lowering energy costs.

[0017] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] The attached figures are labeled as follows: 1-Instant hot water device; 2-Buffer insulated water tank; 3-Dual-drive circulating pump; 4-Heat exchange chamber; 5-Central heating device; 6-Water inlet; 7-First check valve; 8-Second check valve; 9-Domestic hot water device; 31-Internal circulation pump; 32-External circulation pump; 41-First heat exchanger; 42-Second heat exchanger; 43-Third heat exchanger; 51-Heating return water inlet; 52-Heating outlet; 91-Domestic hot water outlet. Detailed Implementation

[0020] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0021] Example 1: An energy-saving centralized heating system like Figure 1 As shown An energy-saving centralized heating system includes a heating device, a dual-drive circulating pump 3, and a heat exchange device 4. The heating device includes... Water inlet 6: supplies water to the heating system, central heating system 5, and domestic hot water system 9; Instant hot water device 1: It is connected to the water inlet 6 through a pipeline and is used to heat the water entering the instant hot water device 1 and transport the heated water to the buffer insulated water tank 2 through the pipeline. Buffer and heat preservation water tank 2: Stores and keeps the water heated by the instant hot water device 1 at a constant temperature, and transports the hot water to the circulation system through pipes; Dual-drive circulation pump 3: The dual-drive circulation pump 3 includes an internal circulation pump 31 and an external circulation pump 32. The internal circulation pump 31 provides power to the heating device, causing the water inside the heating device to flow and transporting hot water through pipes to the first heat exchanger 41. The external circulation pump 32 provides power to the water flowing out of the second heat exchanger 42 into the building's central heating device, so that the water in the building's internal heating network is circulated. The heat exchange device includes a heat exchange chamber 4 and a first heat exchanger 41, a second heat exchanger 42, and a third heat exchanger 43 disposed inside the heat exchange chamber 4. The first heat exchanger 41 is connected to the heating system via a pipeline, the second heat exchanger 42 is connected to the central heating device 5 via a pipeline, and the third heat exchanger 43 is connected to the domestic hot water device 9 via a pipeline. The first heat exchanger 41 supplies heat energy from the heating device to the heat exchange chamber 4. The second heat exchanger 42 and the third heat exchanger 43 exchange heat energy through the heat exchange chamber 4 and then supply it to the central heating device 5 and the domestic hot water device 9. The first heat exchanger 41 delivers heat energy to the heat exchange chamber 4, and the hot water that has completed the heat exchange is delivered to the instant hot water device 1 via a pipeline for repeated heating. The second heat exchanger 42 delivers heat energy to the central heating device 5, and the hot water circulates through a pipeline to heat the central heating device 5.

[0022] After the second heat exchanger 42 acquires heat energy, it delivers hot water to the central heating device 5 through the heating outlet 52. After the central heating device 5 is used up, it delivers hot water from the heating return outlet 51 to the second heat exchanger 42 to replenish the heat energy.

[0023] After acquiring heat energy, the third heat exchanger 43 delivers hot water to the domestic hot water device 9 through the domestic hot water outlet 91 for use.

[0024] A first one-way valve 7 is installed on the pipe connecting the water inlet 6 and the instant hot water device 1 to prevent water entering the heating system from being lost through the water inlet 6, and to automatically replenish water when the water in the heating device is insufficient.

[0025] The water inlet 6 is connected to the second heat exchanger 42 via a pipe, and a second one-way valve 8 is installed on the connected pipe to prevent water entering the second heat exchanger 42 from being lost through the water inlet 6, and to automatically replenish water when the water volume inside the central heating device is insufficient.

[0026] The water inlet 6 is connected to the domestic hot water device 9 through the third heat exchanger 43, and supplies water to the domestic hot water device 9.

[0027] The electrical appliances in the heating system are powered by an external power source, and the centralized pipe heating system 5 is powered by an external circulation pump 32, which circulates the water inside the system.

[0028] In this embodiment, the centralized heating device 5 includes Heat dissipation terminals: radiators, underfloor heating, and fan coil units, etc. Distribution components: Pipes and auxiliary equipment connecting the centralized pipe heating system and the radiator terminals; Filters: Filter impurities in pipes to protect pipes and equipment from clogging.

[0029] This device can be used in a manner where one unit is installed per building or one unit is installed across multiple buildings.

[0030] 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 way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An energy-saving centralized heating system, characterized in that: It includes a heating device, a dual-drive circulating pump (3), and a heat exchange device, wherein the heating device includes... Water inlet (6): supplies water to the heating device, the central heating device (5), and the domestic hot water device (9); Instant hot water device (1): It is connected to the water inlet (6) through a pipeline and is used to heat the water entering the instant hot water device (1) and transport the heated water to the buffer insulated water tank (2) through the pipeline. Buffer and heat preservation water tank (2): Stores and heats the water heated by the instant hot water device (1), and transports the hot water to the circulation system through pipes; Dual-drive circulation pump (3): The dual-drive circulation pump (3) includes an internal circulation pump (31) and an external circulation pump (32). The internal circulation pump (31) provides power to the heating device, so that the water inside the heating device flows and the hot water is transported to the first heat exchanger (41) through the pipeline. The external circulation pump (32) provides power to the water flowing out of the second heat exchanger (42) to enter the building central heating device (5). The heat exchange device includes a heat exchange chamber (4) and a first heat exchanger (41), a second heat exchanger (42), and a third heat exchanger (43) disposed inside the heat exchange chamber (4). The first heat exchanger (41) is connected to the heating device via a pipeline, the second heat exchanger (42) is connected to the central heating device (5) via a pipeline, and the third heat exchanger (43) is connected to the domestic hot water device (9) via a pipeline. The first heat exchanger (41) supplies heat energy from the heating device to the heat exchange chamber (4). The second heat exchanger (42) and the third heat exchanger (43) exchange heat energy through the heat exchange chamber (4) and supply it to the central heating device (5) and the domestic hot water device (9); the first heat exchanger (41) delivers heat energy to the heat exchange chamber (4), and the hot water that has completed the heat exchange is delivered to the instant hot water device (1) through the pipeline for repeated heating; the second heat exchanger (42) delivers heat energy to the central heating device (5), and the hot water is circulated through the pipeline to heat the central heating device (5); After the second heat exchanger (42) obtains heat energy, it delivers hot water to the central heating device (5) through the heating outlet (52). After the central heating device (5) is used up, it delivers hot water from the heating return outlet (51) to the second heat exchanger (42) to replenish the heat energy. After the third heat exchanger (43) acquires heat energy, it delivers hot water to the domestic hot water device (9) through the domestic hot water outlet (91) for use.

2. The energy-saving centralized heating system according to claim 1, characterized in that: A first check valve (7) is installed on the pipe connecting the water inlet (6) and the instant hot water device (1).

3. The energy-saving centralized heating system according to claim 1, characterized in that: The water inlet (6) is connected to the second heat exchanger (42) via a pipe, and a second one-way valve (8) is installed on the connected pipe.

4. The energy-saving centralized heating system according to claim 2, characterized in that: The water inlet (6) is connected to the domestic hot water device (9) through a third heat exchanger (43) to supply water to the domestic hot water device (9).

5. An energy-saving centralized heating system according to claim 2, characterized in that: The electrical appliances in the heating device are powered by an external power source, and the central heating device (5) is powered by an external circulation pump (32) to circulate the water inside.

6. The energy-saving centralized heating system according to claim 5, characterized in that: The centralized heating device (5) includes Heat dissipation terminals: radiators, underfloor heating, and fan coil units; Distribution components: Pipes and auxiliary equipment connecting the central heating unit (5) and the heat dissipation terminal; Filters: Filter impurities in pipes to protect pipes and equipment from clogging.

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