Wind, light and heat integrated heat compensation system for ground heat exchanger

Abstract

The utility model provides a ground heat exchanger wind, light and heat integrated heat compensation system which comprises a ground heat exchanger, a surface heat exchanger and a photovoltaic panel, a coil pipe is arranged on the back face of the photovoltaic panel, the ground heat exchanger, the surface heat exchanger, the coil pipe and the ground heat exchanger are sequentially communicated to form a circulation path, and the surface heat exchanger is arranged on the surface of the surface heat exchanger. Low-temperature water in the ground heat exchanger is pumped into the surface heat exchanger, the water heated by the surface heat exchanger enters the coil pipe, and the water heated by the coil pipe enters the ground heat exchanger for the next circulation. According to the system, water circulates in the coil pipes of the ground heat exchanger, the surface heat exchanger and the photovoltaic panel, high-temperature air and sufficient sunlight in spring, summer and autumn are fully utilized, continuous heat compensation and heat storage are provided for the ground heat exchanger, extra energy does not need to be consumed, and reliable guarantee is provided for heat supply of a heat pump in winter.

Description

Technical Field

[0001] The utility model relates to the technical field of ground source heat pumps, and in particular to a wind-solar-heat integrated heat supplement system of a buried pipe heat exchanger. Background Art

[0002] Shallow geothermal energy refers to geothermal energy within a certain depth range below the surface (generally from the constant temperature zone to 200m burial depth), with a temperature below 25°C. It is a thermal energy resource inside the earth that has development and utilization value under current technical and economic conditions. Its energy mainly comes from solar radiation and the earth's gradient warming. Shallow geothermal energy can be collected and utilized through ground source heat pump technology to heat buildings, saving 50% to 60% energy compared with conventional heating technology.

[0003] Geothermal heat pump technology is also widely used for heating in cold areas in winter. However, with the increasing number of users, the heating effect of geothermal heat pump systems often decays to varying degrees. The main reason is that the heating demand of users in cold areas in winter is far greater than the cooling demand. In this case, long-term use of geothermal heat pump technology for heating will cause the soil around the buried pipe heat exchanger system to lose thermal balance, resulting in reduced operating efficiency of the geothermal heat pump system, or even inability to use it normally.

[0004] Therefore, a ground pipe heat exchanger wind, solar and thermal integrated heat supplement system is needed to maintain the thermal balance of the underground soil. Utility Model Content

[0005] The purpose of the utility model is to provide a wind-solar-heat integrated heating system for a buried pipe heat exchanger, which makes full use of the high temperature air and abundant sunshine in spring, summer and autumn to provide continuous heating and heat storage for the buried pipe heat exchanger without consuming additional energy, thus providing reliable guarantee for heat pump heating in winter.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A buried pipe heat exchanger wind-solar-heat integrated heat supplement system comprises a buried pipe heat exchanger, a surface heat exchanger and a photovoltaic panel, wherein a coil is arranged on the back of the photovoltaic panel, the buried pipe heat exchanger, the surface heat exchanger, the coil and the buried pipe heat exchanger are connected in sequence to form a circulation passage, low-temperature water in the buried pipe heat exchanger is pumped to the inside of the surface heat exchanger, water heated by the surface heat exchanger enters the coil, and water heated by the coil enters the buried pipe heat exchanger for the next cycle.

[0008] Furthermore, in the above-mentioned underground heat exchanger wind-solar-thermal integrated heat compensation system, a fan is installed on one side of the surface heat exchanger, and the fan allows air to pass through the surface heat exchanger at high speed, and the surface heat exchanger transfers the heat of the air to the underground heat exchanger.

[0009] Furthermore, in the above-mentioned ground pipe heat exchanger wind-solar-thermal integrated heat supplement system, the heat supplement system also includes a water pump, which pumps the low-temperature water in the ground pipe heat exchanger to the inside of the surface heat exchanger.

[0010] Furthermore, in the above-mentioned underground pipe heat exchanger wind-solar-thermal integrated heat compensation system, the photovoltaic panel can generate electricity, and the electricity generated by the photovoltaic panel can provide power for the water pump and the fan.

[0011] Furthermore, in the above-mentioned underground heat exchanger wind-solar-thermal integrated heat supplement system, the heat supplement system also includes a base, and the surface heat exchanger is arranged on the base.

[0012] Furthermore, in the above-mentioned underground heat exchanger wind, solar and thermal integrated heat supplementation system, the surface heat exchanger has a heat exchange tube, one end of the heat exchange tube is a water inlet, and the other end of the heat exchange tube is a water outlet, the water inlet is connected to the underground heat exchanger, and the water outlet is connected to the coil.

[0013] Furthermore, in the above-mentioned underground heat exchanger wind-solar-thermal integrated heat supplement system, fins are installed on the surface of the heat exchange tube.

[0014] Furthermore, in the above-mentioned underground heat exchanger wind-solar-thermal integrated heat supplement system, a plurality of fans are provided.

[0015] Furthermore, in the above-mentioned underground heat exchanger wind-solar-thermal integrated heat supplement system, the photovoltaic panel is arranged on the other side of the surface heat exchanger, and one end of the photovoltaic panel is connected to the surface heat exchanger.

[0016] Furthermore, in the above-mentioned underground heat exchanger wind-solar-thermal integrated heating system, a plurality of photovoltaic panels are provided, and the plurality of photovoltaic panels are evenly distributed vertically along the surface heat exchanger.

[0017] Analysis shows that the utility model discloses an integrated wind, solar and thermal heat supplement system for a buried pipe heat exchanger. The system circulates water in the coils of the buried pipe heat exchanger, the surface heat exchanger and the photovoltaic panel, making full use of the high temperature air and abundant sunshine in spring, summer and autumn to provide continuous heat supplement and heat storage for the buried pipe heat exchanger. It does not require additional energy consumption and provides reliable guarantee for winter heat pump heating. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. Among them:

[0019] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0020] Figure 2 It is a schematic structural diagram of a surface heat exchanger according to an embodiment of the utility model.

[0021] Figure 3 The figure is a schematic structural diagram of a photovoltaic panel according to an embodiment of the utility model.

[0022] Figure 4 It is a right side structural schematic diagram of a photovoltaic panel according to an embodiment of the utility model.

[0023] Explanation of the reference numerals: 1 surface heat exchanger; 2 photovoltaic panel; 3 coil; 4 fan; 5 fin; 6 water pump; 7 base; 8 heat exchange tube; 9 water inlet; 10 water outlet; 11 underground heat exchanger. DETAILED DESCRIPTION

[0024] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. Each example is provided by way of explanation of the present invention and does not limit the present invention. In fact, it will be clear to those skilled in the art that modifications and variations may be made in the present invention without departing from the scope or spirit of the present invention. For example, a feature shown or described as a part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desired that the present invention includes such modifications and variations within the scope of the appended claims and their equivalents.

[0025] In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention. The terms "connected", "connected" and "set" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components; they can be wired electrical connections, radio connections, or wireless communication signal connections. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0026] One or more examples of the utility model are shown in the attached drawings. The detailed description uses numbers and letters to refer to the features in the drawings. Similar or similar marks in the drawings and descriptions have been used to refer to similar or similar parts of the utility model. As used herein, the terms "first", "second", and "third" etc. are used interchangeably to distinguish one component from another, and are not intended to indicate the position or importance of individual components.

[0027] like Figures 1 to 4 As shown, according to an embodiment of the utility model, a ground pipe heat exchanger wind-solar-heat integrated heat supplement system is provided, such as Figure 1 As shown, the heat supplement system includes a ground heat exchanger 11, a surface heat exchanger 1 and a photovoltaic panel 2, wherein the ground heat exchanger 11 is buried in the underground soil, and a coil 3 is arranged on the back of the photovoltaic panel 2. The ground heat exchanger 11, the surface heat exchanger 1, the coil 3 and the ground heat exchanger 11 are connected in sequence to form a circulation path, and the low-temperature water in the ground heat exchanger 11 is pumped to the inside of the surface heat exchanger 1, and the water heated by the surface heat exchanger 1 enters the coil 3, and the water heated by the coil 3 enters the ground heat exchanger 11 for the next cycle, and the water heated by the coil 3 exchanges heat with the soil through the ground heat exchanger 11, realizing the functions of heat supplement and heat storage. The system makes full use of the high temperature air and sufficient sunshine in spring, summer and autumn to provide continuous heat supplement and heat storage for the ground heat exchanger 11, thereby maintaining the thermal balance of the underground soil and providing reliable guarantee for heat pump heating in winter.

[0028] Furthermore, if Figure 2 As shown, a fan 4 is installed on one side of the surface heat exchanger 1, and the fan 4 is located on the leeward side of the surface heat exchanger 1. The fan 4 allows air to pass through the surface heat exchanger 1 at a high speed, thereby making full use of the high temperature air in spring, summer and autumn to heat the water in the surface heat exchanger 1. The surface heat exchanger 1 transfers the heat of the air to the buried pipe heat exchanger 11 through the circulation of water.

[0029] Furthermore, the heat replenishment system also includes a water pump 6, which pumps the low-temperature water in the ground heat exchanger 11 to the inside of the surface heat exchanger 1. Such a configuration can improve the heat replenishment efficiency of the ground heat exchanger 11, thereby enabling the soil to store sufficient shallow geothermal energy, providing reliable protection for heat pump heating in winter.

[0030] Furthermore, if Figure 3 and Figure 4As shown, the photovoltaic panel 2 can generate electricity, and the electricity generated by the photovoltaic panel 2 can provide power for the water pump 6 and the fan 4. Water enters the coil 3 on the back of each photovoltaic panel 2, and through circulation, the temperature of the water can be increased, the temperature of the photovoltaic panel 2 can be reduced, and the power generation efficiency of the photovoltaic panel 2 can be improved. The photovoltaic panel 2 is used to provide power for the water pump 6 and the fan 4, and no additional energy is consumed, making the system energy-saving and environmentally friendly.

[0031] Furthermore, the heat supplement system also includes a base 7 , and the surface heat exchanger 1 is arranged on the base 7 .

[0032] Furthermore, the surface heat exchanger 1 has a heat exchange tube 8, one end of the heat exchange tube 8 is a water inlet 9, the other end of the heat exchange tube 8 is a water outlet 10, the water inlet 9 is connected to the underground heat exchanger 11, and the water outlet 10 is connected to the coil 3. The water pump 6 pumps the low-temperature water in the underground heat exchanger 11 from the water inlet 9 to the heat exchange tube 8. Under the action of the fan 4, the high-temperature air in spring, summer and autumn passes through the surface of the heat exchange tube 8 at a high speed, thereby heating the low-temperature water in the heat exchange tube 8.

[0033] Furthermore, fins 5 are installed on the surface of the heat exchange tube 8. Such an arrangement can improve the heat exchange efficiency of the surface heat exchanger 1.

[0034] Furthermore, a plurality of fans 4 are provided. Such a configuration can improve the heat exchange efficiency of the surface heat exchanger.

[0035] Furthermore, the photovoltaic panel 2 is arranged on the other side of the surface heat exchanger 1, one end of the photovoltaic panel 2 is connected to the surface heat exchanger 1, and a plurality of photovoltaic panels 2 are arranged, and the plurality of photovoltaic panels 2 are evenly distributed vertically along the surface heat exchanger 1, and the coils in the plurality of photovoltaic panels 2 are connected through connecting pipes. Such an arrangement can make full use of sunlight to generate electricity, ensure the continuous operation of the water pump 6 and the fan 4, and thus ensure the normal operation of the supplementary heat system. When there is sufficient sunlight, the system can automatically start, and when the start-up conditions are not met, the system automatically shuts down.

[0036] From the above description, it can be seen that the above embodiments of the utility model achieve the following technical effects:

[0037] A ground pipe heat exchanger integrated wind, solar and thermal heat supplementary system, which circulates water in the ground pipe heat exchanger 11, the surface heat exchanger 1, and the coil 3 of the photovoltaic panel 2, fully utilizing the high temperature air and abundant sunshine in spring, summer and autumn to provide continuous heat supplement and heat storage for the ground pipe heat exchanger 11 without consuming additional energy, thus providing reliable protection for heat pump heating in winter.

[0038] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A ground pipe heat exchanger wind, solar and thermal integrated heat supplement system, characterized in that: It includes underground heat exchangers, surface heat exchangers and photovoltaic panels, among which: A coil is arranged on the back of the photovoltaic panel, and the buried heat exchanger, the surface heat exchanger, the coil and the buried heat exchanger are connected in sequence to form a circulation path. The low-temperature water in the underground heat exchanger is pumped to the inside of the surface heat exchanger. The water heated by the surface heat exchanger enters the coil. The water heated by the coil enters the buried heat exchanger for the next cycle.

2. The underground heat exchanger wind-solar-heat integrated heat supplement system according to claim 1 is characterized in that: A fan is installed on one side of the surface heat exchanger. The fan allows air to pass through the surface heat exchanger at a high speed. The surface heat exchanger transfers the heat of the air to the buried pipe heat exchanger.

3. The underground heat exchanger wind-solar-heat integrated heat supplement system according to claim 2 is characterized in that: The heat supplement system also includes a water pump, which pumps the low-temperature water in the buried pipe heat exchanger to the inside of the surface heat exchanger.

4. The underground heat exchanger wind-solar-heat integrated heat supplement system according to claim 3 is characterized in that: The photovoltaic panel can generate electricity, and the electricity generated by the photovoltaic panel can provide power for the water pump and the fan.

5. The underground heat exchanger wind-solar-heat integrated heat supplement system according to claim 1 is characterized in that: The supplementary heat system further comprises a base, and the surface heat exchanger is arranged on the base.

6. The underground heat exchanger wind-solar-heat integrated heat supplement system according to claim 1 is characterized in that: The surface heat exchanger has a heat exchange tube, one end of the heat exchange tube is a water inlet, and the other end of the heat exchange tube is a water outlet. The water inlet is communicated with the buried pipe heat exchanger, and the water outlet is communicated with the coil.

7. The underground heat exchanger wind-solar-heat integrated heat supplement system according to claim 6 is characterized in that: Fins are installed on the surface of the heat exchange tube.

8. The underground heat exchanger wind-solar-heat integrated heat supplement system according to claim 2 is characterized in that: The fans are provided in plurality.

9. The underground heat exchanger wind-solar-heat integrated heat supplement system according to claim 1, characterized in that: The photovoltaic panel is arranged on the other side of the surface heat exchanger, and one end of the photovoltaic panel is connected to the surface heat exchanger.

10. The underground heat exchanger wind-solar-heat integrated heat supplement system according to claim 1, characterized in that: A plurality of photovoltaic panels are provided, and the plurality of photovoltaic panels are evenly distributed vertically along the surface heat exchanger.

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