Multi-water-temperature heating device in new energy coupling heating system

Abstract

The utility model discloses a multi-water-temperature heating device in a new energy coupling heating system. The multi-water-temperature heating device comprises an air source heat pump, a gas-fired boiler, an air source heat pump circulating pump, a system circulating pump and an auxiliary heating circulating pump. The gas-fired boiler is arranged on one side of the air source heat pump, the air source heat pump circulating pump is arranged below the air source heat pump, the system circulating pump is arranged on one side of the air source heat pump circulating pump, and the auxiliary heat circulating pump is arranged below the gas-fired boiler. The air source heat pump circulating pumps are divided into two groups, and every six air source heat pump circulating pumps are divided into one group. The problems that an air source heat pump, a thermal power plant, a regional boiler room and the like are generally adopted as a heat source of an existing heating device, but the heat pump technology, especially the air source heat pump system, is difficult to produce high-temperature water (higher than 50 DEG C) when the heat pump technology and a traditional energy source coupled heating system are applied; and a certain problem of how to meet the multi-water-temperature requirement in a dual-heat-source system coupling system exists.

Description

Technical Field

[0001] The utility model relates to the technical field of heating, in particular to a multi-water-temperature heating device in a new energy coupled heating system. Background Technique

[0002] Heating refers to the service and technology of supplying heat to buildings to maintain a certain indoor temperature, and the heat source can be a thermal power plant, a district boiler house or other forms of thermal energy production facilities.

[0003] However, it still has the following disadvantages in actual use:

[0004] The heat sources of existing heating devices generally adopt air source heat pumps, thermal power plants, district boiler houses, etc. However, when applying a heating system that couples heat pump technology with traditional energy, it is difficult for heat pump technology, especially air source heat pump systems, to produce high-temperature water (greater than 50 °C), and there are certain problems in how to meet the requirements of multiple water temperatures in a dual heat source system coupling system. Content of the Utility Model

[0005] The purpose of the utility model is to provide a multi-water-temperature heating device in a new energy coupled heating system to solve the problems mentioned in the above background technique, that is, the heat sources of existing heating devices generally adopt air source heat pumps, thermal power plants, district boiler houses, etc. However, when applying a heating system that couples heat pump technology with traditional energy, it is difficult for heat pump technology, especially air source heat pump systems, to produce high-temperature water (greater than 50 °C), and there are certain problems in how to meet the requirements of multiple water temperatures in a dual heat source system coupling system.

[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] The utility model is a multi-water-temperature heating device in a new energy coupled heating system, including:

[0008] An air source heat pump, a gas boiler, an air source heat pump circulation pump, a system circulation pump, and an auxiliary heat circulation pump;

[0009] The gas boiler is arranged on one side of the air source heat pump, and the air source heat pump circulation pump is arranged below the air source heat pump. The system circulation pump is arranged on one side of the air source heat pump circulation pump, and the auxiliary heat circulation pump is arranged below the gas boiler;

[0010] The air source heat pump circulation pump is set to two groups, with 6 units in each group;

[0011] It also includes a balance pipe, a heating supply pipe, a fresh air heating supply pipe, a heating return pipe, and a fresh air heating return pipe;

[0012] The balance pipe is arranged on one side of the air source heat pump circulation pump. The fresh air heating water supply pipe and the heating water supply pipe are arranged above and below on one side below the auxiliary heat circulation pump, and the fresh air heating return water pipe and the heating return water pipe are arranged above and below below the heating water supply pipe.

[0013] Further, the output port of the air source heat pump is sleeved with a first connecting pipe, one end of the first connecting pipe is communicated with one end of the balance pipe, and one end of the balance pipe is communicated with the input port of the system circulation pump.

[0014] Further, the output port of the system circulation pump is sleeved with a second connecting pipe, and one end of the second connecting pipe is communicated with the input port of the heating water supply pipe.

[0015] Further, a third connecting pipe penetrates through above one end of the second connecting pipe, one end of the third connecting pipe is communicated with the input port of the fresh air heating water supply pipe, and the upper part of the outer surface of the third connecting pipe is communicated with the input port of the auxiliary heat circulation pump.

[0016] Further, the output port of the auxiliary heat circulation pump is sleeved with a fourth connecting pipe, and one end of the fourth connecting pipe is communicated with the input port of the gas boiler.

[0017] Further, the output port of the gas boiler is sleeved with a fifth connecting pipe, and one end of the fifth connecting pipe is communicated with the input port of the fresh air heating water supply pipe.

[0018] Further, the output ports of the fresh air heating return water pipe and the heating return water pipe are communicated with a seventh connecting pipe. A make-up water pump is arranged in the middle of the lower part of the outer surface of the seventh connecting pipe. One end of the seventh connecting pipe is communicated with the other end of the balance pipe, and a differential pressure bypass control valve is communicated between the seventh connecting pipe and the second connecting pipe.

[0019] Further, the output port of the air source heat pump circulation pump is sleeved with a sixth connecting pipe, and one end of the sixth connecting pipe is communicated with the output port of the air source heat pump.

[0020] Compared with the prior art, the advantages of the present utility model are as follows:

[0021] In the present utility model, in a multi-water-temperature heating system in a new energy coupled heating system, multiple systems are coupled and mixed with water through a balance pipe to realize the simultaneous supply of multiple water temperatures, and the heating temperature and the upper limit of the temperature difference of the air source heat pump heating system are increased. At the same time, according to the actual weather and the terminal operation data, the air source heat pump energy is started first, and renewable energy is preferentially used for heating. When the heating of the air source heat pump is insufficient or the water temperature is insufficient, the gas boiler is started for auxiliary heating, which significantly reduces the system operation cost and carbon emission, serves multiple purposes, has obvious economic value, and has a large promotion prospect. Description of the Drawings

[0022] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0023] Figure 1 It is the subjective schematic diagram of the present utility model.

[0024] In the drawings, the list of components represented by each label is as follows:

[0025] 1. Air source heat pump; 2. Gas boiler; 3. Air source heat pump circulation pump; 4. System circulation pump; 5. Auxiliary heat circulation pump; 6. Balance pipe; 7. Make-up water pump; 8. Differential pressure bypass control valve; 9. Fresh air heating supply pipe; 10. Heating supply pipe; 11. Fresh air heating return pipe; 12. Heating return pipe; 13. First connecting pipe; 14. Second connecting pipe; 15. Third connecting pipe; 16. Fourth connecting pipe; 17. Fifth connecting pipe; 18. Sixth connecting pipe; 19. Seventh connecting pipe. Specific embodiments

[0026] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following will make a detailed description of the specific embodiments of the present utility model in conjunction with the drawings.

[0027] In the following description, many specific details are set forth to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0028] To make the purpose, technical solutions, and advantages of the present utility model clearer, the following will further describe the embodiments of the present utility model in detail in conjunction with the drawings.

[0029] Please refer to Figure 1 As shown, this embodiment is a multi-temperature heating device in a new energy coupled heating system, including:

[0030] Air source heat pump 1, gas boiler 2, air source heat pump circulation pump 3, system circulation pump 4, auxiliary heat circulation pump 5;

[0031] The gas boiler 2 is arranged on one side of the air source heat pump 1, and the air source heat pump circulation pump 3 is arranged below the air source heat pump 1. The system circulation pump 4 is arranged on one side of the air source heat pump circulation pump 1, and the auxiliary heat circulation pump 5 is arranged below the gas boiler 2;

[0032] The air source heat pump 1 extracts heat from the air to achieve heating and water supply. The gas boiler 2 adjusts the water temperature by heating. When the water temperature affected by the air source heat pump 1 fails to meet the demand, it supplements heat to raise the water temperature. The air source heat pump circulation pump 3 conveys the return water back to the air source heat pump 1. The system circulation pump 4 externally outputs the supply water or conveys it to the auxiliary heat circulation pump 5, and the auxiliary heat circulation pump 5 conveys the supply water to the gas boiler 2 for temperature increase treatment;

[0033] The air source heat pump circulation pumps 3 are set in two groups, with 6 pumps in each group;

[0034] It also includes a balance pipe 6, a heating supply water pipe 10, a fresh air heating supply water pipe 9, a heating return water pipe 12, and a fresh air heating return water pipe 11;

[0035] The balance pipe 6 is arranged on one side of the air source heat pump circulation pump 3. The fresh air heating supply water pipe 10 and the heating supply water pipe 9 are arranged vertically below one side of the auxiliary heat circulation pump 5, and the fresh air heating return water pipe 12 and the heating return water pipe 11 are arranged vertically below the heating supply water pipe 10;

[0036] The balance pipe 6 is used to achieve water balance. The fresh air heating supply water pipe 9 and the heating supply water pipe 10 are used to achieve heating and water supply. The fresh air heating return water pipe 11 and the heating return water pipe 12 return the water for secondary return heating utilization to meet the usage requirements;

[0037] The output port of the air source heat pump 1 is sleeved with a first connecting pipe 13, and one end of the first connecting pipe 13 is communicated with one end of the balance pipe 3, and one end of the balance pipe 6 is communicated with the input port of the system circulation pump 4;

[0038] The first connecting pipe 13 connects the air source heat pump 1 and the balance pipe 6 for the preliminary conveyance of the warm water supply;

[0039] The output port of the system circulation pump 4 is sleeved with a second connecting pipe 14, and one end of the second connecting pipe 14 is communicated with the input port of the heating supply water pipe 10;

[0040] The second connecting pipe 14 is used for the secondary conveyance of the warm water supply;

[0041] A third connecting pipe 15 penetrates through the upper part of one end of the second connecting pipe 14, and one end of the third connecting pipe 15 is communicated with the input port of the fresh air heating supply water pipe 9, and the upper part of the outer surface of the third connecting pipe 15 is communicated with the input port of the auxiliary heat circulation pump 5;

[0042] The third connecting pipe 15 conveys the water whose temperature fails to meet the usage requirements to the auxiliary heat circulation pump 5 for secondary temperature increase compensation;

[0043] The output port of the auxiliary heat circulation pump 5 is sleeved with a fourth connecting pipe 16, and one end of the fourth connecting pipe 16 is communicated with the input port of the gas boiler 2;

[0044] The fourth connecting pipe 16 is used to convey the water supply transported by the auxiliary heat circulation pump 5 into the gas boiler 2 for secondary temperature rise compensation;

[0045] A fifth connecting pipe 17 is sleeved at the output port of the gas boiler 2, and one end of the fifth connecting pipe 17 communicates with the input port of the fresh air heating water supply pipe 9;

[0046] The fifth connecting pipe 17 conveys the water supply after temperature rise compensation to the fresh air heating water supply pipe 9;

[0047] The output ports of the fresh air heating return pipe 11 and the heating return pipe 12 are connected to a seventh connecting pipe 19. A make-up water pump 7 is provided in the middle section of the lower part of the outer surface of the seventh connecting pipe 19. One end of the seventh connecting pipe 19 communicates with the other end of the balance pipe 6, and a differential pressure bypass control valve 8 is connected between the seventh connecting pipe 19 and the second connecting pipe 14;

[0048] The seventh connecting pipe 19 is used for the preliminary conveyance of the return water. The make-up water pump 7 is used for water make-up, and the differential pressure bypass control valve 8 is used for regulating the differential pressure;

[0049] A sixth connecting pipe 18 is sleeved at the output port of the air source heat pump circulation pump 3, and one end of the sixth connecting pipe 18 communicates with the output port of the air source heat pump 1;

[0050] The sixth connecting pipe 18 conveys the return water for the second time;

[0051] Working principle: Connect one end of the first connecting pipe 13 to the output port of the air source heat pump 1 and one end of the balance pipe 6, connect one end of the second connecting pipe 14 to the output port of the system circulation pump 4 and the heating water supply pipe 10, connect one end of the third connecting pipe 15 to the second connecting pipe 14 and the auxiliary heat circulation pump 5, connect one end of the fourth connecting pipe 16 to the output port of the auxiliary heat circulation pump 5 and the input port of the gas boiler 2, connect one end of the fifth connecting pipe 17 to the output port of the gas boiler 2 and the fresh air heating water supply pipe 9, connect one end of the sixth connecting pipe 18 to the output port of the air source heat pump circulation pump 3 and the input port of the air source heat pump 1, and connect one end of the seventh connecting pipe 19 to the input port of the air source heat pump circulation pump 3, the fresh air heating return pipe 11, and the heating return pipe 12;

[0052] Then, the air source heat pump 1 collects the air heat and acts on the water supply. The water supply is conveyed through the balance pipe 6 by the system circulation pump 4. If the water supply temperature reaches the required value, it is directly conveyed to the heating water supply pipe 10. If the temperature does not reach the required value, the water supply is conveyed to the auxiliary heat circulation pump 5 and then conveyed into the gas boiler 2 for secondary temperature rise compensation, and then conveyed to the fresh air heating water supply pipe 9;

[0053] During this process, the heating recovery and make-up water are conveyed to the air source heat pump circulation pump 3 and then re-circulated and conveyed back to the air source heat pump 1 for reflow preheating treatment;

[0054] This solution enables the simultaneous supply of multiple water temperatures, raises the heating temperature and the upper limit of the temperature difference of the air source heat pump heating system, and can significantly reduce the system operation cost and carbon emissions.

[0055] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0056] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A multi-temperature heating device in a new energy coupled heating system, characterized in that, Comprising: An air source heat pump (1), a gas boiler (2), an air source heat pump circulation pump (3), a system circulation pump (4), and an auxiliary heat circulation pump (5); The gas boiler (2) is arranged on one side of the air source heat pump (1), and the air source heat pump circulation pump (3) is arranged below the air source heat pump (1). The system circulation pump (4) is arranged on one side of the air source heat pump circulation pump (1), and the auxiliary heat circulation pump (5) is arranged below the gas boiler (2); The air source heat pump circulation pump (3) is set in two groups, with 6 pumps in each group; It further includes a balance pipe (6), a heating supply pipe (10), a fresh air heating supply pipe (9), a heating return pipe (12), and a fresh air heating return pipe (11); The balance pipe (6) is arranged on one side of the air source heat pump circulation pump (3). The fresh air heating supply pipe (10) and the heating supply pipe (9) are arranged one above the other below one side of the auxiliary heat circulation pump (5), and the fresh air heating return pipe (12) and the heating return pipe (11) are arranged one above the other below the heating supply pipe (10).

2. The multi-temperature heating device in a new energy coupled heating system according to claim 1, characterized in that, The output port of the air source heat pump (1) is sleeved with a first connecting pipe (13), and one end of the first connecting pipe (13) is communicated with one end of the balance pipe (3), and one end of the balance pipe (6) is communicated with the input port of the system circulation pump (4).

3. The multi-temperature heating device in a new energy coupled heating system according to claim 1, wherein The output port of the system circulation pump (4) is sleeved with a second connecting pipe (14), and one end of the second connecting pipe (14) is communicated with the input port of the heating supply pipe (10).

4. A multi-water-temperature heating device in a new energy-coupled heating system according to claim 3, characterized in that, Above one end of the second connecting pipe (14), a third connecting pipe (15) penetrates through, and one end of the third connecting pipe (15) is communicated with the input port of the fresh air heating supply pipe (9). The upper part of the outer surface of the third connecting pipe (15) is communicated with the input port of the auxiliary heat circulation pump (5).

5. A multi-water temperature heating device in a new energy coupled heating system according to claim 1, characterized in that, The output port of the auxiliary heat circulation pump (5) is sleeved with a fourth connecting pipe (16), and one end of the fourth connecting pipe (16) is communicated with the input port of the gas boiler (2).

6. The multi-water-temperature heating device in a new energy-coupled heating system according to claim 1, wherein, The output port of the gas boiler (2) is sleeved with a fifth connecting pipe (17), and one end of the fifth connecting pipe (17) is communicated with the input port of the fresh air heating supply pipe (9).

7. A multi-temperature heating device in a new energy coupled heating system according to claim 1, characterized in that, The output ports of the fresh air heating return pipe (11) and the heating return pipe (12) are communicated with a seventh connecting pipe (19). In the middle of the lower part of the outer surface of the seventh connecting pipe (19), a make-up water pump (7) is provided. One end of the seventh connecting pipe (19) is communicated with the other end of the balance pipe (6), and a differential pressure bypass control valve (8) is communicated between the seventh connecting pipe (19) and the second connecting pipe (14).

8. A multi-water-temperature heating device in a new energy-coupled heating system according to claim 1, characterized in that, The output port of the air source heat pump circulation pump (3) is sleeved with a sixth connecting pipe (18), and one end of the sixth connecting pipe (18) is communicated with the output port of the air source heat pump (1).

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