Energy utilization system with high utilization rate

Abstract

The utility model discloses a high-utilization-rate energy utilization system which comprises a water tank, a first plate heat exchanger, a second plate heat exchanger and a waterscape pool. Two water inlets of the first plate heat exchanger communicate with a first pipeline and a fifth pipeline correspondingly, and two water outlets of the first plate heat exchanger communicate with a second pipeline and a fourth pipeline correspondingly. The other ends of the fourth pipeline and the fifth pipeline are communicated with the water tank; the second pipeline is communicated with a third pipeline; the other end of the third pipeline is communicated with a water inlet of the second plate heat exchanger; the other water inlet of the second plate heat exchanger is communicated with a seventh pipeline; two water outlets of the second plate heat exchanger are respectively communicated with an eighth pipeline and a sixth pipeline; and the other ends of the seventh pipeline and the eighth pipeline are communicated with the waterscape pool. The system has the advantages that heat of high-temperature geothermal water resources can be fully utilized, carbon emission is reduced, and the system is energy-saving and environment-friendly.

Description

Technical Field

[0001] The utility model relates to the technical field of heat energy utilization systems, and particularly relates to an energy utilization system with high utilization rate. Background Art

[0002] Under the social background of carbon peak and carbon neutrality, it has great promotion prospects to improve the utilization efficiency of energy resources as much as possible, promote the utilization of renewable energy, reduce building carbon emissions, and create a good indoor building environment. Regarding the preparation and utilization of heat energy, commonly used ones at present include solar energy, air source heat pumps, water source heat pumps, gas water heaters, boilers, etc. However, there are various types of heat energy. For example, there are rich geothermal resources in some areas, but the current heat energy system does not fully utilize geothermal resources and there is still much room for improvement. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide an energy utilization system with high utilization rate, which can make full use of the heat of high-temperature geothermal water resources, reduce carbon emissions, and save energy and protect the environment.

[0004] To solve the above technical problem, the technical solution of the utility model is an energy utilization system with high utilization rate, including a water tank, a first plate heat exchanger, a second plate heat exchanger and a waterscape pool; two water inlets of the first plate heat exchanger are respectively connected with a first pipeline and a fifth pipeline, and two water outlets are respectively connected with a second pipeline and a fourth pipeline; the other ends of the fourth pipeline and the fifth pipeline are both connected with the water tank; a third pipeline is connected to the second pipeline; the other end of the third pipeline is connected with one water inlet of the second plate heat exchanger; the other water inlet of the second plate heat exchanger is connected with a seventh pipeline; two water outlets of the second plate heat exchanger are respectively connected with an eighth pipeline and a sixth pipeline; the other ends of the seventh pipeline and the eighth pipeline are both connected with the waterscape pool.

[0005] Further, it also includes a water source heat pump; the water source heat pump is connected with the waterscape pool through a water source circulation pipe and is also connected with the water tank through a medium circulation pipe.

[0006] Further, a first filter is installed on the water inlet section of the water source circulation pipe.

[0007] Further, a second filter is installed on the seventh pipeline.

[0008] Further, a flow control valve is installed on the third pipeline.

[0009] Further, a temperature sensor is installed in the water tank.

[0010] Advantages of the Utility Model

[0011] The high-temperature geothermal water resource is introduced into the first plate heat exchanger through the first pipeline to heat up the circulating water entering the first plate heat exchanger from the water tank. The high-temperature geothermal water resource is cooled down. After cooling, a part of the high-temperature geothermal water flows out through the second pipeline for subsequent use, and the other part is introduced into the second plate heat exchanger for further cooling. At the same time, the circulating water entering the second plate heat exchanger from the water feature pool is heated up. The cooled geothermal water is discharged through the sixth pipeline for subsequent use. This application uses two-stage plate heat exchangers to cool the high-temperature geothermal water in two stages to obtain directly usable high-temperature hot water and low-temperature hot water. At the same time, the water in the water tank and the water feature pool is heated up respectively. The water in the water tank can be used as the heat source for the building. The utility model has a simple structure, can make full use of the heat of the high-temperature geothermal water resource, reduce carbon emissions, and is energy-saving and environment-friendly. Description of the Drawings

[0012] Figure 1 It is a schematic diagram of the overall structure of the embodiment.

[0013] In the figure, 1 - water tank, 2 - first plate heat exchanger, 3 - second plate heat exchanger, 4 - water feature pool, 5 - first filter, 6 - water source heat pump, 7 - first pipeline, 8 - second pipeline, 9 - third pipeline, 10 - fourth pipeline, 11 - fifth pipeline, 12 - sixth pipeline, 13 - seventh pipeline, 14 - eighth pipeline, 15 - water source circulation pipe, 16 - medium circulation pipe, 17 - temperature sensor, 18 - flow control valve, 19 - circulation pump, 20 - second filter. Detailed Embodiments

[0014] The following specifically describes the detailed embodiments of the present utility model with reference to the drawings. It should be noted here that the description of these embodiments is used to help understand the present utility model, but does not constitute a limitation to the present utility model. In addition, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0015] Embodiment

[0016] A high-utilization energy utilization system, as Figure 1As shown in the figure, it includes a water tank 1, a first plate heat exchanger 2, a second plate heat exchanger 3 and a waterscape pool 4; two water inlets of the first plate heat exchanger 2 are respectively connected to a first pipeline 7 and a fifth pipeline 11, and two water outlets are respectively connected to a second pipeline 8 and a fourth pipeline 10; the other ends of the fourth pipeline 10 and the fifth pipeline 11 are both connected to the water tank 1; a third pipeline 9 is connected to the second pipeline 8; the other end of the third pipeline 9 is connected to one water inlet of the second plate heat exchanger 3; the other water inlet of the second plate heat exchanger 3 is connected to a seventh pipeline 13; two water outlets of the second plate heat exchanger 3 are respectively connected to an eighth pipeline 14 and a sixth pipeline 12; the other ends of the seventh pipeline 13 and the eighth pipeline 14 are both connected to the waterscape pool 4.

[0017] For the above high-utilization-rate energy utilization system, high-temperature geothermal water with a temperature greater than 85 °C is introduced into the first plate heat exchanger 2 through the first pipeline 7, the water in the water tank 1 enters the first plate heat exchanger 2 from the fifth pipeline 11, and flows back into the water tank 1 through the fourth pipeline 10 to heat the water in the water tank 1. The temperature of the high-temperature geothermal water with a temperature greater than 85 °C is reduced to about 65 °C. A part of the cooled 65 °C hot water flows out through the second pipeline 8 for subsequent use, and the other part enters the second plate heat exchanger 3 through the third pipeline 9. The water in the waterscape pool 4 enters the second plate heat exchanger 3 through the seventh pipeline 13 and flows back into the waterscape pool 4 through the eighth pipeline 14 to heat the water in the waterscape pool 4. At the same time, the 85 °C high-temperature geothermal water is specifically cooled to about 45 °C, and the cooled 45 °C hot water is discharged from the sixth pipeline 12 for subsequent use.

[0018] Specifically, it further includes a water source heat pump 6; the water source heat pump 6 is connected to the waterscape pool 4 through a water source circulation pipe 15, and is also connected to the water tank 1 through a medium circulation pipe 16. The heat in the waterscape pool 4 is utilized by the water source heat pump 6 to specifically increase the water temperature in the water tank 1.

[0019] Specifically, a first filter 5 is installed on the water inlet section of the water source circulation pipe 15. The first filter 5 filters out impurities such as sand and gravel to prevent them from entering the water source heat pump 6.

[0020] Specifically, a second filter 20 is installed on the seventh pipeline 13. The first filter 5 filters out impurities such as sand and gravel to prevent them from entering the second plate heat exchanger 3.

[0021] Specifically, a flow control valve 18 is installed on the third pipeline 9. The flow control valve 18 can control the flow rate of the third pipeline 9 entering the second plate heat exchanger 3.

[0022] Specifically, a temperature sensor 17 is installed in the water tank 1.

[0023] Working principle of the embodiment:

[0024] Turn on the circulation pump 19, and introduce the high-temperature geothermal water with a temperature greater than 85°C into the first plate heat exchanger 2 through the first pipeline 7. The water in the water tank 1 enters the first plate heat exchanger 2 from the fifth pipeline 11 and returns to the water tank 1 through the fourth pipeline 10 to heat up the water in the water tank 1. The temperature of the high-temperature geothermal water with a temperature greater than 85°C is reduced to about 65°C. A part of the 65°C hot water after cooling flows out through the second pipeline 8 for subsequent use, and the other part enters the second plate heat exchanger 3 through the third pipeline 9. The water in the waterscape pool 4 enters the second plate heat exchanger 3 through the seventh pipeline 13 and returns to the waterscape pool 4 through the eighth pipeline 14 to heat up the water in the waterscape pool 4. At the same time, the high-temperature geothermal water at about 65°C is further cooled to about 45°C. The 45°C hot water after cooling is discharged from the sixth pipeline 12 for subsequent use.

[0025] This application uses two-stage plate heat exchangers to cool the high-temperature geothermal water in two stages, obtaining high-temperature hot water (about 65°C) and low-temperature (about 45°C) hot water that can be directly used. At the same time, it heats up the water in the water tank 1 and the waterscape pool 4 respectively. And the heat in the waterscape pool 4 is utilized through the water source heat pump 6, so that the water temperature in the water tank 1 is further increased. The water in the water tank 1 can be used as the heat source of the building. The utility model has a simple structure, can make full use of the heat of the high-temperature geothermal water resources, reduces carbon emissions, and is energy-saving and environmentally friendly.

[0026] The above has described the embodiments of the present utility model in detail with reference to the accompanying drawings, but the present utility model is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present utility model, various changes, modifications, substitutions, and variations made to these embodiments still fall within the protection scope of the present utility model.

Claims

1. A high-efficiency energy utilization system, characterized in that: The invention comprises a water tank (1), a first plate heat exchanger (2), a second plate heat exchanger (3) and a waterscape pool (4); the two water inlets of the first plate heat exchanger (2) are respectively connected to a first pipe (7) and a fifth pipe (11), and the two water outlets are respectively connected to a second pipe (8) and a fourth pipe (10); the other ends of the fourth pipe (10) and the fifth pipe (11) are both connected to the water tank (1); the second pipe (8) is connected to a third pipe (9); the other end of the third pipe (9) is connected to a water inlet of the second plate heat exchanger (3); the other water inlet of the second plate heat exchanger (3) is connected to a seventh pipe (13); the two water outlets of the second plate heat exchanger (3) are respectively connected to an eighth pipe (14) and a sixth pipe (12); the other ends of the seventh pipe (13) and the eighth pipe (14) are both connected to the waterscape pool (4).

2. The high-efficiency energy utilization system according to claim 1, characterized in that: It also includes a water source heat pump (6); the water source heat pump (6) is connected to the waterscape pool (4) through a water source circulation pipe (15), and is also connected to the water tank (1) through a medium circulation pipe (16).

3. The high-efficiency energy utilization system according to claim 2, characterized in that: A first filter (5) is installed on the water inlet section of the water source circulation pipe (15).

4. The high-efficiency energy utilization system according to claim 1, characterized in that: A second filter (20) is installed on the seventh pipe (13).

5. The high-efficiency energy utilization system according to claim 1, characterized in that: A flow control valve (18) is installed on the third pipeline (9).

6. The high-efficiency energy utilization system according to claim 1, characterized in that: A temperature sensor (17) is installed in the water tank (1).

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