Cold and heat source device for ground source heat pump air conditioner

Abstract

A cold and heat source device for a ground source heat pump air conditioner comprises a first heat conduction box, a second heat conduction box and a third heat conduction box used for being arranged underground to serve as a cold and heat source for the ground source heat pump air conditioner, the first heat conduction box is arranged above the ground, and the second heat conduction box is arranged below the third heat conduction box; energy storage media are contained in the first heat conduction box, the second heat conduction box and the third heat conduction box, a first circulating pipeline is arranged between the first heat conduction box and the third heat conduction box, and a second circulating pipeline is arranged between the second heat conduction box and the third heat conduction box; a third circulating pipeline is arranged between the third heat conduction box and a heat pump unit of the ground source heat pump air conditioner, heat conduction media are contained in the first circulating pipeline, the second circulating pipeline and the third circulating pipeline, and circulating pumps and circulating control valves are installed on the first circulating pipeline, the second circulating pipeline and the third circulating pipeline. According to the application, the temperature of the cold and heat source is flexibly adjusted, so that diversified use requirements can be more accurately met.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to a cold and hot source device for a ground source heat pump air conditioning. Background Art

[0002] Despite widespread adoption and diverse designs in current technology, ground-source heat pump air conditioning systems still face a core challenge: the fixed temperatures of their heat and cooling sources. This characteristic is often directly limited by the natural temperature of the underground soil and lacks the ability to be flexibly adjusted. In practical applications, people often desire the ability to adjust the temperatures of their heat and cooling sources to suit specific needs, adapting to varying environmental conditions and comfort requirements. For example, in different climates, raising or lowering the temperatures of the heat and cooling sources can be crucial for improving air conditioning performance and user experience.

[0003] Therefore, the market is in urgent need of an innovative ground source heat pump air conditioning system. Utility Model Content

[0004] The technical problem to be solved by the present invention is to address the deficiencies of the existing technology and to provide a cold and hot source device for ground source heat pump air conditioning that can flexibly adjust the temperature of the cold and hot sources to more accurately meet diverse usage needs.

[0005] The technical problem to be solved by the present invention is achieved through the following technical solutions. The present invention is a cold and heat source device for a ground source heat pump air conditioner, comprising a first heat conduction box, a second heat conduction box, and a third heat conduction box for being set below the ground to serve as a cold and heat source for the ground source heat pump air conditioner, wherein the first heat conduction box is set above the ground, and the second heat conduction box is set below the third heat conduction box; the first heat conduction box, the second heat conduction box, and the third heat conduction box are all filled with energy storage medium, a first circulation pipe is set between the first heat conduction box and the third heat conduction box, a second circulation pipe is set between the second heat conduction box and the third heat conduction box, a third circulation pipe is set between the third heat conduction box and the heat pump unit of the ground source heat pump air conditioner, the first circulation pipe, the second circulation pipe, and the third circulation pipe are all filled with heat transfer medium, and a circulation pump and a circulation control valve are installed on the first circulation pipe, the second circulation pipe, and the third circulation pipe.

[0006] The technical problem to be solved by the present invention can be further achieved through the following technical solutions. For the above-mentioned cold and hot source device for ground source heat pump air conditioning, heat conducting fins are installed on the outside of the first heat conducting box and the second heat conducting box.

[0007] The technical problem to be solved by the present invention can be further achieved through the following technical solutions. For the above-mentioned cold and hot source device for ground source heat pump air conditioning, the energy storage medium is a phase change heat storage material.

[0008] The technical problem to be solved by the present invention can be further achieved through the following technical solutions. For the above-mentioned cold and hot source device for ground source heat pump air conditioning, the energy storage medium is paraffin, calcium chloride hexahydrate, sodium acetate trihydrate or organic alcohol.

[0009] The technical problem to be solved by the present invention can be further achieved through the following technical solutions. For the above-mentioned cold and hot source device for ground source heat pump air conditioning, the heat transfer medium is water, water-ethylene glycol solution or heat transfer oil.

[0010] The technical problem to be solved by the present invention can be further achieved through the following technical solutions. For the above-mentioned cold and hot source device for ground source heat pump air conditioning, a temperature measuring instrument is also installed on the third heat conduction box.

[0011] The technical problem to be solved by the present invention can be further achieved through the following technical solutions. For the above-mentioned cold and hot source device for ground source heat pump air conditioning, the circulation control valve is an electric valve.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. Efficient energy conversion and utilization:

[0014] By setting up a first heat conduction box, a second heat conduction box and a third heat conduction box, and establishing a circulation pipeline system between them and between them and the heat pump unit, efficient conversion and utilization of energy is achieved. The third heat conduction box is buried deep underground and can stably absorb or release geothermal energy. As the core part of the cold and heat source, the first heat conduction box and the second heat conduction box are respectively located at different depths on the ground and underground. Heat exchange is carried out with the third heat conduction box through the heat transfer medium in the circulation pipeline, thereby improving the thermal efficiency of the entire system. This layered design enables the system to make more full use of the stability of underground temperature and the richness of geothermal energy, providing a stable and efficient cold and heat source for the ground source heat pump air conditioner;

[0015] 2. Flexible adjustment and control:

[0016] Circulation pumps and circulation control valves are installed on the first, second, and third circulation pipes, allowing the device to flexibly adjust the circulation flow and temperature of the heat transfer medium according to actual needs. At the same time, the operating state of the circulation pump and the opening of the circulation control valve can be automatically adjusted according to the set working mode or environmental conditions, thereby realizing intelligent control and optimized operation of the device. This flexible adjustment and intelligent control capability not only improves the operating efficiency of the device, but also reduces energy consumption and operating costs;

[0017] 3. Environmental protection, energy saving and sustainable development:

[0018] This cold and heat source device makes full use of the stability of underground temperature and the clean and renewable nature of geothermal energy, realizing the effective utilization of natural resources and environmental protection. Compared with traditional air-conditioning cold and heat source systems, ground source heat pump air conditioners have lower energy consumption and fewer emissions, which meets the requirements of modern society for environmental protection, energy saving and sustainable development. At the same time, the design of the device also takes into account the long-term stable operation of the system and the convenience of maintenance, providing users with reliable, economical and environmentally friendly cold and heat source solutions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of the present utility model. DETAILED DESCRIPTION

[0020] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0021] Reference Figure 1 A cold and hot source device for a ground-source heat pump air conditioner comprises a first heat conduction box 1, a second heat conduction box 2, and a third heat conduction box 3 for being arranged below the ground to serve as a cold and hot source for the ground-source heat pump air conditioner. The first heat conduction box 1 is arranged above the ground, and the second heat conduction box 2 is arranged below the third heat conduction box 3. Energy storage medium 4 is contained in each of the first heat conduction box 1, the second heat conduction box 2, and the third heat conduction box 3 to form an efficient, flexible, and environmentally friendly energy conversion system. The system aims to provide a reliable cold and hot source for the ground-source heat pump air conditioner by stabilizing the underground temperature and utilizing geothermal energy.

[0022] The first heat conducting box 1 is located above the ground, facilitating heat exchange with the indoor environment. It is equipped with an energy storage medium 4 inside, capable of releasing or absorbing heat when needed. The second heat conducting box 2 is arranged below the third heat conducting box 3 and is located deeper underground. Similar to the first heat conducting box 1, the second heat conducting box 2 is also equipped with an energy storage medium 4, capable of releasing or absorbing heat when needed. Since the underground temperature is relatively stable, the second heat conducting box 2 can more effectively utilize geothermal energy as an important energy storage link in the system. The third heat conducting box 3 is the core part of the entire system. The third heat conducting box 3 is set below the ground and directly exchanges heat with the soil or groundwater. It is also equipped with an energy storage medium 4 inside for storing and releasing heat. The design of the third heat conducting box 3 takes into account the complexity of the underground environment to ensure long-term and stable operation.

[0023] In order to enhance the heat exchange efficiency, heat conducting fins 12 are installed on the outside of the first heat conducting box 1 and the second heat conducting box 2. These fins 12 can increase the heat exchange area and promote the transfer of heat between the heat conducting box and the surrounding environment.

[0024] Preferably, the energy storage medium 4 is a phase change heat storage material, and the energy storage medium 4 is paraffin, calcium chloride hexahydrate, sodium acetate trihydrate or organic alcohol. These materials have the characteristics of undergoing phase change at a specific temperature and absorbing or releasing a large amount of heat, and are very suitable for use in the cold and heat source system of the ground source heat pump air conditioner. By selecting a suitable phase change temperature, it can be ensured that the energy storage medium 4 can effectively absorb or release heat when needed to meet the operating requirements of the system.

[0025] Secondly, a first circulation pipe 5 is provided between the first heat conducting box 1 and the third heat conducting box 3, a second circulation pipe 6 is provided between the second heat conducting box 2 and the third heat conducting box 3, and a third circulation pipe 7 is provided between the third heat conducting box 3 and the heat pump unit 8 of the ground source heat pump air conditioner. The first circulation pipe 5, the second circulation pipe 6 and the third circulation pipe 7 are respectively connected to the first heat conducting box 1, the second heat conducting box 2 and the third heat conducting box 3 and the heat pump unit 8 to form a complete heat exchange circuit, which is convenient for realizing heat exchange between the first heat conducting box 1 and the third heat conducting box 3, the second heat conducting box 2 and the third heat conducting box 3, and the third heat conducting box 3 and the heat pump unit 8. Secondly, a heat conducting medium is contained in the first circulation pipe 5, the second circulation pipe 6 and the third circulation pipe 7. It has good heat conduction performance and can quickly transfer heat from one place to another. Preferably, the heat conducting medium is water, water-ethylene glycol solution or thermal oil;

[0026] Preferably, a circulation pump 9 and a circulation control valve 10 are installed on the first circulation pipe 5, the second circulation pipe 6, and the third circulation pipe 7 to control the flow speed and direction of the heat transfer medium; the circulation pump 9 provides power to circulate the heat transfer medium in the pipe; the circulation control valve 10 adjusts the flow and temperature according to the requirements of the device to ensure stable operation of the device. Preferably, the circulation control valve 10 is an electric valve.

[0027] In actual use, a temperature measuring instrument 11 is also installed on the third heat conduction box 3 to monitor the temperature changes of the third heat conduction box 3 in real time, so as to adjust the working status of the circulation pump 9 and the circulation control valve 10 according to the temperature measurement, so as to achieve accurate control of the temperature of the third heat conduction box 3.

[0028] The specific working process of this utility model is:

[0029] 1. Energy collection and storage:

[0030] The first heat conduction box 1, the second heat conduction box 2, and the third heat conduction box 3 respectively exchange heat with the surrounding environment through the energy storage medium 4 (such as phase change thermal storage material) inside. Generally, in summer, the temperature of the first heat conduction box 1 is higher than that of the third heat conduction box 3, and the temperature of the third heat conduction box 3 is higher than that of the second heat conduction box 2; in winter, the temperature of the first heat conduction box 1 is lower than that of the third heat conduction box 3, and the temperature of the third heat conduction box 3 is lower than that of the second heat conduction box 2;

[0031] 2. Heat exchange cycle:

[0032] In summer,

[0033] When the temperature of the third heat conduction box 3 needs to be increased, the first circulation pipe 5 is opened, and the first heat conduction box 1 and the third heat conduction box 3 are heat exchanged by using the heat conduction medium to increase the temperature of the third heat conduction box 3;

[0034] When the temperature of the third heat conducting box 3 needs to be lowered, the second circulation pipe 6 is opened, and the second heat conducting box 2 and the third heat conducting box 3 are heat exchanged by using the heat conducting medium to lower the temperature of the third heat conducting box 3;

[0035] In winter,

[0036] When the temperature of the third heat conduction box 3 needs to be increased, the second circulation pipe 6 is opened, and the second heat conduction box 2 and the third heat conduction box 3 are heat exchanged by using the heat conduction medium to increase the temperature of the third heat conduction box 3;

[0037] When the temperature of the third heat conducting box 3 needs to be lowered, the first circulation pipe 5 is opened, and the first heat conducting box 1 and the third heat conducting box 3 are heat exchanged by using the heat conducting medium to lower the temperature of the third heat conducting box 3.

[0038] In addition, a temperature measuring instrument 11 is installed on the third heat conducting box 3 for measuring the temperature change in the third heat conducting box 3 in real time so as to adjust the working state of the heat exchange cycle in time.

Claims

1. A cold and hot source device for a ground source heat pump air conditioner, characterized by: It includes a first heat conduction box, a second heat conduction box and a third heat conduction box for being set below the ground to serve as a cold and heat source for a ground source heat pump air conditioner. The first heat conduction box is set above the ground, and the second heat conduction box is set below the third heat conduction box. The first heat conduction box, the second heat conduction box and the third heat conduction box are all filled with energy storage medium. A first circulation pipe is set between the first heat conduction box and the third heat conduction box, a second circulation pipe is set between the second heat conduction box and the third heat conduction box, and a third circulation pipe is set between the third heat conduction box and the heat pump unit of the ground source heat pump air conditioner. The first circulation pipe, the second circulation pipe and the third circulation pipe are all filled with heat conduction medium. Circulation pumps and circulation control valves are installed on the first circulation pipe, the second circulation pipe and the third circulation pipe.

2. The cold and hot source device for ground source heat pump air conditioning according to claim 1, characterized in that: Heat conducting fins are installed on the outsides of the first heat conducting box and the second heat conducting box.

3. The cold and hot source device for ground source heat pump air conditioning according to claim 1, characterized in that: The energy storage medium is a phase change heat storage material.

4. The cold and hot source device for ground source heat pump air conditioning according to claim 3, characterized in that: The energy storage medium is paraffin, calcium chloride hexahydrate, sodium acetate trihydrate or organic alcohol.

5. The cold and hot source device for ground source heat pump air conditioning according to claim 1, characterized in that: The heat transfer medium is water, water-ethylene glycol solution or heat transfer oil.

6. The cold and hot source device for ground source heat pump air conditioning according to claim 1, characterized in that: A temperature measuring instrument is also installed on the third heat conduction box.

7. The cold and hot source device for ground source heat pump air conditioning according to claim 1 or 6, characterized in that: The circulation control valve is an electric valve.

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