Pipeline anti-freezing device

Abstract

The utility model relates to the technical field of anti-freezing equipment, in particular to a pipeline anti-freezing device which comprises a heat exchange module, a first heating medium circulating system, a second heating medium circulating system and a third heating medium circulating system, and at least one of the first heating medium circulating system, the second heating medium circulating system and the third heating medium circulating system is connected with the heat exchange module. The first heating medium circulating system comprises a first heat source and a first heating medium circulating pipeline, the second heating medium circulating system comprises a first heat source, a second heat source and a second heating medium circulating pipeline, and the third heating medium circulating system comprises a second heat source, a third heat source and a third heating medium circulating pipeline. Three heat supply modes are provided for the heat exchange module through the first heating medium circulating system, the second heating medium circulating system and the third heating medium circulating system, the three heat supply modes are in synergistic effect, and the problems of high energy consumption and high cost caused by single-mode electric heating are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-freezing equipment, and particularly relates to a pipeline anti-freezing device. Background Art

[0002] To prevent the liquid in the pipeline from crystallizing and freezing in cold weather and low-temperature environments and ensure the normal flow of the liquid in the pipeline, a heating source is usually set to heat the pipeline. In the prior art, a single form of electric heating is usually used as the heating source, which has high energy consumption, increases costs, and cannot meet the requirements of energy conservation and cost reduction.

[0003] In summary, there is an urgent need to provide a pipeline anti-freezing device to solve the problems existing in the prior art. Content of the Utility Model

[0004] The purpose of the utility model is to provide a pipeline anti-freezing device, and the specific technical solution is as follows:

[0005] A pipeline anti-freezing device includes a heat exchange module, a first heat medium circulation system, a second heat medium circulation system, and a third heat medium circulation system. At least one of the first heat medium circulation system, the second heat medium circulation system, and the third heat medium circulation system is connected to the heat exchange module;

[0006] The first heat medium circulation system includes a first heat source and a first heat medium circulation pipeline. The first heat medium circulation pipeline is connected to the first heat source to form a first loop for heating the heat exchange module;

[0007] The second heat medium circulation system includes a first heat source, a second heat source, and a second heat medium circulation pipeline. The first heat source and the second heat source are connected in series and connected to the second heat medium circulation pipeline to form a second loop for heating the heat exchange module;

[0008] The third heat medium circulation system includes a second heat source, a third heat source, and a third heat medium circulation pipeline. The second heat source is connected to the third heat medium circulation pipeline to form a third loop for heating the heat exchange module; the third heat source is used to heat the heat medium in the third loop.

[0009] Further, the heat exchange module includes a tracing pipe arranged on the pipeline; the first heat source is a solar heat source, the second heat source is a hot water tank, the third heat source is an electric heater, and the electric heater is arranged in the hot water tank.

[0010] Further, the tracing pipe is a thin-walled copper pipe with internal threads, and the tracing pipe is wound around the pipeline.

[0011] Further, the distance between adjacent two turns of the tracing pipe is 200mm - 300mm.

[0012] Further, the first heat medium circulation pipeline includes pipeline one, pipeline two, pipeline three, pipeline four, pipeline five, and pipeline six connected in sequence; a solar heat source is connected between pipeline one and pipeline six, and a tracing pipe is connected between pipeline four and pipeline five.

[0013] Further, the second heat medium circulation pipeline includes pipeline one, pipeline eight, pipeline nine, pipeline three, pipeline four, pipeline five, and pipeline six connected in sequence; a solar heat source is connected between pipeline one and pipeline six, a tracing pipe is connected between pipeline four and pipeline five, and pipeline nine is connected to a hot water tank.

[0014] Further, the third heat medium circulation pipeline includes pipeline seven, pipeline nine, pipeline three, pipeline four, and pipeline five. Both ends of the tracing pipe are respectively connected to pipeline four and pipeline five, and pipeline nine is connected to a second heat source and a third heat source.

[0015] Further, a temperature sensor is provided on pipeline four.

[0016] Further, a valve one is provided on pipeline two, a valve two is provided on pipeline six, a valve three is provided on pipeline seven, and a valve four is provided on pipeline eight.

[0017] Further, a heat medium expansion tank is further included, and the heat medium expansion tank is arranged on pipeline three.

[0018] Applying the technical solution of the present utility model has the following beneficial effects:

[0019] The present utility model provides a pipeline anti-freezing device, which includes a heat exchange module, a first heat medium circulation system, a second heat medium circulation system, and a third heat medium circulation system. At least one of the first heat medium circulation system, the second heat medium circulation system, and the third heat medium circulation system is connected to the heat exchange module; the first heat medium circulation system includes a first heat source and a first heat medium circulation pipeline, and the first heat medium circulation pipeline is connected to the first heat source to form a first loop for heating the heat exchange module; the second heat medium circulation system includes a first heat source, a second heat source, and a second heat medium circulation pipeline. The first heat source and the second heat source are connected in series and connected to the second heat medium circulation pipeline to form a second loop for heating the heat exchange module; the third heat medium circulation system includes a second heat source, a third heat source, and a third heat medium circulation pipeline. The second heat source is connected to the third heat medium circulation pipeline to form a third loop for heating the heat exchange module; the third heat source is used to heat the heat medium in the third loop. The present utility model provides three heating methods for the heat exchange module through the first heat medium circulation system, the second heat medium circulation system, and the third heat medium circulation system. The three heating methods cooperate with each other to solve the problems of high energy consumption and high cost caused by a single form of electric heating.

[0020] In addition to the purposes, features and advantages described above, the utility model has other purposes, features and advantages. The following will refer to the drawings to further elaborate on the utility model in detail. Brief Description of the Drawings

[0021] The drawings forming a part of this application are used to provide a further understanding of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an improper limitation to the utility model. In the drawings:

[0022] Figure 1 is the overall structural schematic diagram of the pipeline anti-freezing device in the utility model;

[0023] Among them, 1. heat exchange module, 2. first heat source, 3. second heat source, 4. third heat source, 5. pipeline one, 6. pipeline two, 7. pipeline three, 8. pipeline four, 9. pipeline five, 10. pipeline six, 11. pipeline seven, 12. pipeline eight, 13. pipeline nine, 14. temperature sensor, 15. valve one, 16. valve two, 17. valve three, 18. valve four, 19. heat medium expansion tank, 20. heat medium circulation pump. Detailed Description of the Embodiments

[0024] The following will elaborate on the embodiments of the utility model in detail with reference to the drawings. However, the utility model can be implemented in many different ways defined and covered by the claims.

[0025] In the description of the utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", "lateral", "longitudinal", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the utility model.

[0026] In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0027] Embodiment

[0028] See Figure 1, this embodiment provides a pipeline anti-freezing device, which includes a heat exchange module 1, a first heat medium circulation system, a second heat medium circulation system, and a third heat medium circulation system. At least one of the first heat medium circulation system, the second heat medium circulation system, and the third heat medium circulation system is connected to the heat exchange module 1;

[0029] The first heat medium circulation system includes a first heat source 2 and a first heat medium circulation pipeline. The first heat medium circulation pipeline is connected to the first heat source 2 to form a first loop for heating the heat exchange module 1;

[0030] The second heat medium circulation system includes a first heat source 2, a second heat source 3, and a second heat medium circulation pipeline. The first heat source 2 and the second heat source 3 are connected in series to the second heat medium circulation pipeline to form a second loop for heating the heat exchange module 1;

[0031] The third heat medium circulation system includes a second heat source 3, a third heat source 4, and a third heat medium circulation pipeline. The second heat source 3 is connected to the third heat medium circulation pipeline to form a third loop for heating the heat exchange module 1; the third heat source 4 is used to heat the heat medium in the third loop.

[0032] Preferably, the heat exchange module 1 includes a tracing pipe arranged on the pipeline. The tracing pipe is a thin-walled copper pipe with internal threads. The tracing pipe is wound around the pipeline, and the distance between adjacent two turns of the tracing pipe is 200 mm - 300 mm. Using a thin-walled copper pipe with internal threads wound around the pipeline at intervals can improve the heat exchange efficiency between the heat medium and the pipeline.

[0033] In this embodiment, the first heat source 2 is a solar heat source, the second heat source 3 is a hot water tank, and the third heat source 4 is an electric heater. The electric heater is arranged in the hot water tank. In this embodiment, the heat medium is heated by three heat sources. Specifically, the first one is to heat the heat medium by the solar heat source; when the temperature of the heat medium is relatively high, the heat medium flows along the heat medium circulation pipeline to the hot water tank to heat the cold water in the hot water tank, and at the same time, the temperature of the heat medium can be reduced. When the solar heat source stops working, the hot water in the hot water tank serves as the second heat source; when the temperature of the second heat source cannot meet the requirements, the electric heater is started to heat the heat medium. The heat medium is heated through the synergistic effect of the above three methods, making full use of energy and solving the problems of high energy consumption and high cost caused by a single form of electric heating.

[0034] In this embodiment, the heat medium circulation pipeline includes pipeline 1-5, pipeline 2-6, pipeline 3-7, pipeline 4-8, pipeline 5-9, pipeline 6-10, pipeline 7-11, pipeline 8-12, and pipeline 9-13. Among them, the outlet end of the solar heat source is connected to the first end of pipeline 1-5, the second end of pipeline 1-5 is connected to the first ends of pipeline 2-6 and pipeline 8-12, the second end of pipeline 2-6 is connected to the second end of pipeline 9-13 and the first end of pipeline 3-7, and the second end of pipeline 3-7 is connected to pipeline 4-8; the first end of the tracing pipe is connected to pipeline 4-8, and the second end is connected to the first end of pipeline 5-9. The second end of pipeline 5-9 is connected to the first ends of pipeline 6-10 and pipeline 7-11. The second end of pipeline 6-10 is connected to the inlet end of the solar heat source, and the second end of pipeline 7-11 is connected to the second end of pipeline 8-12 and the first end of pipeline 9-13; the middle section of pipeline 9-13 is spirally arranged in the hot water tank, and an electric heater is arranged in the hot water tank; the hot water tank is also connected with a water inlet pipe and a drain pipe.

[0035] In this embodiment, a valve 1-15 is provided on pipeline 2-6, a valve 2-16 is provided on pipeline 6-10, a valve 3-17 is provided on pipeline 7-11, and a valve 4-18 is provided on pipeline 8-12. The valve 1-15, valve 2-16, valve 3-17, and valve 4-18 are all electric valves.

[0036] In this embodiment, a heat medium circulation pump 20 is provided on pipeline 5-9 to make the heat medium circulate in the heat medium circulation pipeline.

[0037] In this embodiment, a temperature sensor 14 is provided on pipeline 4-8 to detect the temperature of the heat medium.

[0038] In this embodiment, a heat medium expansion tank 19 is further included. The heat medium expansion tank 19 is arranged on pipeline 3-7 to prevent the heat medium from expanding and damaging the heat medium circulation pipeline due to excessive temperature.

[0039] In this embodiment, a control system is further included. The control system is connected to the electric heater, temperature sensor 14, valve 1-15, valve 2-16, valve 3-17, valve 4-18, and heat medium circulation pump 20.

[0040] In this embodiment, pipeline 1-5, pipeline 2-6, pipeline 3-7, pipeline 4-8, pipeline 5-9, and pipeline 6-10 form the first heat medium circulation pipeline, combining the solar heat source and the tracing pipe to form the first heat medium circulation system; pipeline 1-5, pipeline 8-12, pipeline 9-13, pipeline 3-7, pipeline 4-8, pipeline 5-9, and pipeline 6-10 form the second heat medium circulation pipeline, combining the solar heat source, hot water tank, and tracing pipe to form the second heat medium circulation system; pipeline 7-11, pipeline 9-13, pipeline 3-7, pipeline 4-8, and pipeline 5-9 form the third heat medium circulation pipeline, combining the hot water tank, electric heater, and tracing pipe to form the third heat medium circulation system.

[0041] When the pipeline anti-freezing device of the present utility model is specifically used, the operation is as follows:

[0042] When there is sufficient solar energy during the day, the solar heat source absorbs heat energy and heats the heat medium. The control system controls the opening of valve 15 and valve 16, and the closing of valve 17 and valve 18, that is, the first heat medium circulation system works, and the flowing heat medium heats the pipeline through the tracing pipe.

[0043] When the temperature sensor 14 detects that the temperature of the heat medium exceeds the highest temperature threshold, to prevent the pipeline structure from being damaged by excessive temperature, the control system controls the closing of valve 15 and valve 17, the opening of valve 18, and valve 16 remains open, that is, the second heat medium circulation system works. The flowing heat medium passes through the hot water tank and heats the cold water in the tank (the heated hot water is used as the second heat source), while reducing the temperature of the heat medium; if the temperature detected by the temperature sensor 14 still exceeds the highest temperature threshold, the control system controls the heat medium circulation pump 20 to reduce the flow rate of the heat medium, so that the heat medium flows in the hot water tank for a longer time, dissipates heat fully, and reduces the temperature of the heat medium.

[0044] When working at night, since the solar heat source stops working and cannot continue to heat the heat medium, at this time, the controller controls the closing of valve 15, valve 16 and valve 18, and opens valve 17. The third heat medium circulation system works, heats the heat medium through the hot water in the hot water tank, and at the same time detects the temperature of the heat medium through the temperature sensor 14. When the temperature of the heat medium exceeds the lowest threshold, the electric heater is turned on to heat the cold water in the hot water tank to ensure the temperature of the heat medium. At the same time, the control system controls the heat medium circulation pump 20 to slow down the flow rate of the heat medium to ensure that the heat medium has enough temperature to heat the pipeline.

[0045] The pipeline anti-freezing device provided by the present utility model is heated by solar energy during the day, and the excess energy is converted into hot water for energy storage. At night, the heat medium is heated by hot water, making full use of clean energy, avoiding energy waste, and cooperating with the electric heater for auxiliary heating to ensure the temperature of the heat medium and prevent the pipeline from freezing. Compared with the form of heating the heat medium by electric heating alone, it reduces the power consumption and cost.

[0046] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A pipeline anti-freezing device, characterized in that, It includes a heat exchange module (1), a first heat medium circulation system, a second heat medium circulation system, and a third heat medium circulation system. At least one of the first heat medium circulation system, the second heat medium circulation system, and the third heat medium circulation system is connected to the heat exchange module (1); The first heat medium circulation system includes a first heat source (2) and a first heat medium circulation pipeline. The first heat medium circulation pipeline is connected to the first heat source (2) to form a first loop for heating the heat exchange module (1); The second heat medium circulation system includes a first heat source (2), a second heat source (3), and a second heat medium circulation pipeline. The first heat source (2) and the second heat source (3) are connected in series and connected to the second heat medium circulation pipeline to form a second loop for heating the heat exchange module (1); The third heat medium circulation system includes a second heat source (3), a third heat source (4), and a third heat medium circulation pipeline. The second heat source (3) is connected to the third heat medium circulation pipeline to form a third loop for heating the heat exchange module (1); The third heat source (4) is used to heat the heat medium in the third loop.

2. The pipeline anti-freezing device according to claim 1, wherein, The heat exchange module (1) includes a tracing pipe arranged on the pipeline; The first heat source (2) is a solar heat source, the second heat source (3) is a hot water tank, and the third heat source (4) is an electric heater. The electric heater is arranged in the hot water tank.

3. The pipeline anti-freezing device according to claim 2, characterized in that, The tracing pipe is a thin-walled copper pipe with internal threads, and the tracing pipe is wound around the pipeline.

4. The pipeline anti-freezing device according to claim 3, characterized in that The distance between adjacent two turns of the tracing pipe is 200mm - 300mm.

5. The pipeline anti-freezing device according to claim 2, wherein The first heat medium circulation pipeline includes pipeline one (5), pipeline two (6), pipeline three (7), pipeline four (8), pipeline five (9), and pipeline six (10) connected in sequence; A solar heat source is connected between pipeline one (5) and pipeline six (10), and a tracing pipe is connected between pipeline four (8) and pipeline five (9).

6. The pipeline anti-freezing device according to claim 2, characterized in that The second heat medium circulation pipeline includes pipeline one (5), pipeline eight (12), pipeline nine (13), pipeline three (7), pipeline four (8), pipeline five (9), and pipeline six (10) connected in sequence; A solar heat source is connected between pipeline one (5) and pipeline six (10), a tracing pipe is connected between pipeline four (8) and pipeline five (9), and pipeline nine (13) is connected to the hot water tank.

7. The pipeline anti-freezing device according to claim 2, characterized in that, The third heat medium circulation pipeline includes pipeline seven (11), pipeline nine (13), pipeline three (7), pipeline four (8), and pipeline five (9) connected in sequence. Both ends of the tracing pipe are connected to pipeline four (8) and pipeline five (9) respectively, and pipeline nine (13) is connected to the second heat source (3) and the third heat source (4).

8. The pipeline anti-freezing device according to any one of claims 5-7, characterized in that, A temperature sensor (14) is arranged on pipeline four (8).

9. The pipeline anti-freezing device according to any one of claims 5-7, characterized in that, A valve one (15) is arranged on pipeline two (6), a valve two (16) is arranged on pipeline six (10), a valve three (17) is arranged on pipeline seven (11), and a valve four (18) is arranged on pipeline eight (12).

10. The pipeline anti-freezing device according to any one of claims 5-7, characterized in that, It further includes a heat medium expansion tank (19), and the heat medium expansion tank (19) is arranged on pipeline three (7).

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