Ground source heat pump low boiling point working fluid circulation booster device

Abstract

This utility model discloses a low-boiling-point working fluid circulation booster device for a ground source heat pump, belonging to the field of ground source heat pump booster technology. The circulation pipeline is connected to a main connecting pipe via a first multi-connector pipe. Multiple second control valves are connected to the side wall of the main connecting pipe. Each second control valve is connected to a second connecting pipe, and each second connecting pipe is connected to a booster pump. A first control valve is connected to the booster pump via a first connecting pipe. The multiple first control valves are connected to a connecting main pipe, which is connected to a pressure tank via a connecting pipe. The use of multiple booster pumps enhances the system's boosting capacity. In high-altitude areas, even if one pump fails, it can be quickly replaced without affecting system operation. The number of pumps can be adjusted according to altitude to ensure efficient system operation. The pressurization and depressurization mechanisms work together to enhance system flexibility and reliability. Different needs can be quickly adapted by adjusting the valves. All pipe connections have sealing rings to ensure sealing and reliability, preventing working fluid leakage.

Description

Technical Field

[0001] This utility model relates to the field of ground source heat pump pressurization technology, and in particular to a ground source heat pump low boiling point working fluid circulation pressurization device. Background Technology

[0002] In the operation of a ground source heat pump, the liquid working fluid first absorbs ambient heat and evaporates through the evaporator. This low-temperature, low-pressure vapor then enters the compressor, where it is compressed and transformed into high-temperature, high-pressure vapor. This high-temperature, high-pressure vapor then enters the condenser, releasing heat into the water, thus achieving the purpose of heating. Afterward, the working fluid is depressurized and cooled through a throttling valve or expansion valve, and then re-enters the evaporator to begin a new cycle.

[0003] Low-boiling-point working fluid circulation booster units play a crucial role in ground source heat pump systems. However, the unique climatic conditions of plateau regions, with significant differences in environmental factors such as temperature and air pressure compared to plains areas, can pose greater challenges to low-boiling-point working fluids during circulation and boosting. For example, the lower air pressure in plateau regions may affect the boiling point and circulation efficiency of the working fluid, thereby increasing the operational burden on the unit.

[0004] Furthermore, soil and geological conditions in high-altitude areas can also affect ground source heat pump systems. The thermal conductivity of the soil and the stability of the geological structure are key factors influencing the efficiency of ground source heat pumps. Poor soil thermal conductivity or unstable geological structure can cause the low-boiling-point working fluid circulation booster unit to experience additional pressure during operation, thereby increasing the risk of damage.

[0005] When a low-boiling-point refrigerant circulation booster unit malfunctions in high-altitude areas, the replacement process is often time-consuming and labor-intensive. This is because transportation is inconvenient in high-altitude areas, making equipment transport and installation more difficult. Furthermore, the harsh environmental conditions may present additional challenges to maintenance work. These factors can all lead to reduced efficiency and may even affect the normal operation of the entire ground source heat pump system. Utility Model Content

[0006] The main purpose of this invention is to provide a low-boiling-point working fluid circulation booster device for ground source heat pumps, which can effectively solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A ground source heat pump low-boiling-point working fluid circulation booster device includes circulation pipes and multi-connector pipes, with the front ends of the two circulation pipes connected to a first multi-connector pipe and a second multi-connector pipe.

[0009] The circulation pipeline is connected to a main docking pipe via a first multi-connector pipe. Multiple second control valves are connected to the side wall of the main docking pipe. Each second control valve is connected to a second connecting pipe. Each second connecting pipe is connected to a booster pump. A first control valve is connected to the booster pump via a first connecting pipe. Multiple first control valves are connected to a connecting main pipe. The connecting main pipe is connected to a pressure tank via a connecting pipe.

[0010] A manual valve is connected between the circulation pipe and the multi-connector pipe to enable communication between the multi-connector pipe and the circulation pipe. A pressure relief pipe is provided between the two circulation pipes and connected to it to enable pressure relief of the circulation pipe.

[0011] In a further preferred embodiment, a bracket is installed at the lower end of the plurality of booster pumps, and a protective cover is provided between the bracket and the booster pump. The protective cover is fixed to the bracket by bolts and is located at the output end of the booster pump. A protruding rod is provided on the upper part of the side wall of the bracket, and the connecting main pipe is connected to the protruding rod by clamps.

[0012] In a further preferred embodiment, the connecting main pipe is welded and fixed to the first connecting pipe, and the connection between the first connecting pipe and the connecting main pipe is sealed; the docking main pipe is welded and fixed to the second connecting pipe, and the connection between the second connecting pipe and the docking main pipe is sealed.

[0013] In a further preferred embodiment, the first control valve is connected to the first connecting pipe and the booster pump via a connecting flange, the second control valve is connected to the second connecting pipe and the booster pump via a connecting flange, and sealing rings are provided at multiple pipe connections;

[0014] In a further preferred embodiment, both the first multi-connector pipe and the second multi-connector pipe are five-way pipes, with both ends of the five-way pipes sealed by plugs. The first multi-connector pipe, the second multi-connector pipe, the manual valve, and the circulation pipe are connected by connecting flanges, and a sealing ring is provided at the connection point.

[0015] In a further preferred embodiment, the main control pipe of the pressure relief pipe is located in the middle section of the circulation pipe, and the branch pipes of the pressure relief pipe extend to both ends of the circulation pipe, thereby realizing the release of internal pressure in the circulation pipe.

[0016] In a further preferred embodiment, the connecting pipe is connected to an instrument and a valve, the instrument being a flow meter, and the valve enabling the pressure tank to connect to the main connecting pipe.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] By using multiple booster pumps, the system's pressurization capacity is significantly improved. When used in high-altitude areas, even if one booster pump fails, its control valve can be quickly shut off for replacement without affecting the operation of the entire system. Furthermore, the number of booster pumps can be flexibly adjusted according to different altitudes to adapt to varying operating environments and ensure efficient system operation.

[0019] The design of the circulating pressure relief mechanism effectively prevents safety issues caused by excessive system pressure. The pressure relief pipeline allows the system to quickly release internal pressure when needed, ensuring safe and stable operation. This design not only improves system safety but also extends the service life of the equipment.

[0020] The combined effect of multiple pressurization and circulation relief mechanisms enhances the system's flexibility and reliability. The system's pressure and flow rate can be quickly adjusted via manual and control valves to meet diverse application requirements. Furthermore, all pipe connections are equipped with sealing rings to ensure system tightness and reliability, effectively preventing leakage of the working fluid. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a diagram showing the overall structure of the present invention;

[0023] Figure 3 This is a top view of the overall structure of this utility model;

[0024] Figure 4 This is a diagram of the pressurization mechanism of this utility model.

[0025] In the diagram: 1. Support; 2. Booster pump; 3. First connecting pipe; 4. First control valve; 5. Main connecting pipe; 6. Connecting pipe; 7. Pressure tank; 8. Second connecting pipe; 9. Second control valve; 10. Connecting main pipe; 11. First multi-connector pipe; 12. Manual valve; 13. Circulation pipe; 14. Second multi-connector pipe; 15. Pressure relief pipe. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] like Figure 1 - Figure 4As shown, the ground source heat pump low-boiling-point working fluid circulation booster device mainly consists of circulation pipes 13, multi-connector pipes, and other components. These components work together to ensure the efficient operation of the entire system. The front ends of the two circulation pipes 13 are connected to the first multi-connector pipe 11 and the second multi-connector pipe 14, respectively, forming a complete circulation path.

[0028] The circulation pipe 13 is connected to the main connection pipe 10 via the first multi-connector pipe 11. Multiple second control valves 9 are installed on the side wall of the main connection pipe 10. These control valves are important regulating components in the system. Each second control valve 9 is connected to a second connecting pipe 8, and each second connecting pipe 8 is connected to a booster pump 2. The booster pump 2 is connected to a first control valve 4 via a first connecting pipe 3, and multiple first control valves 4 are connected to the connecting main pipe 5. The connecting main pipe 5 is connected to the pressure tank 7 via a connecting pipe 6, ensuring the stability and regulation of the system pressure. Because multiple booster pumps 2 are used, if one booster pump 2 fails in high-altitude areas, its control valve can be closed for quick replacement, or the number of booster pumps 2 can be increased or decreased according to different altitudes in the high-altitude areas.

[0029] The circulation pipe 13 is connected to the multi-connector pipe via a manual valve 12, which controls the opening and closing of the connection between the multi-connector pipe and the circulation pipe 13. This design allows for rapid system adjustments when needed, ensuring operational flexibility and safety. A pressure relief pipe 15 is provided between and connected to the two circulation pipes 13. The pressure relief pipe 15 is used to perform pressure relief operations on the circulation pipes 13 to prevent safety issues caused by excessive system pressure.

[0030] Multiple booster pumps 2 are equipped with brackets 1 at their lower ends, and protective covers are provided between the brackets 1 and the booster pumps 2. The protective covers are fixed to the brackets 1 with bolts and are located at the output end of the booster pumps 2. This not only protects the booster pumps 2 but also ensures the safety of the operators. The upper side wall of the brackets 1 is provided with a protruding rod, and the connecting main pipe 5 is connected to the protruding rod with clamps. This design makes the connection more stable and reliable.

[0031] The main connecting pipe 5 and the first connecting pipe 3 are fixed together by welding. The connection between the first connecting pipe 3 and the main connecting pipe 5 is sealed to prevent leakage. The connecting main pipe 10 and the second connecting pipe 8 are also fixed together by welding. The connection between the second connecting pipe 8 and the connecting main pipe 10 is also sealed to ensure the system's airtightness and reliability.

[0032] The first control valve 4 is connected to the first connecting pipe 3 and the booster pump 2 via a connecting flange, and the second control valve 9 is connected to the second connecting pipe 8 and the booster pump 2 via a connecting flange. All pipe connections are equipped with sealing rings, which are crucial components for ensuring the system's airtightness. These sealing rings effectively prevent leakage of the working fluid and ensure the system's efficient operation.

[0033] Both the first multi-connector pipe 11 and the second multi-connector pipe 14 are five-way pipes, with both ends sealed by plugs to prevent the entry of external substances or the leakage of internal substances. The first multi-connector pipe 11, the second multi-connector pipe 14, the manual valve 12, and the circulation pipe 13 are connected by connecting flanges, and each connection is equipped with a sealing ring. This design ensures the sealing and reliability of the entire system.

[0034] The main control pipe of the pressure relief pipe 15 is located in the middle section of the circulation pipe 13, and its branch pipes extend to both ends of the circulation pipe 13. The internal pressure of the circulation pipe 13 is released through the pressure relief pipe 15. This design can effectively prevent system failures caused by excessive pressure and ensure the safe and stable operation of the entire system.

[0035] The connecting pipe 6 is connected to an instrument and a valve. The instrument is a flow meter used to monitor the flow rate in the system, and the valve connects the pressure tank 7 to the main connecting pipe 5. This design makes the system operation more precise and also facilitates the monitoring and adjustment of the system status.

[0036] Open manual valve 12 to ensure connection between circulation pipe 13 and multi-connector pipe. Ensure that the protective covers of all booster pumps 2 are installed and secured to bracket 1 to protect equipment and operator safety. Control the start and stop of booster pumps 2 by adjusting first control valve 4 and second control valve 9 to regulate the pressure in the system. Monitor the flow meter on connecting pipe 6 to ensure the flow rate in the system is within the normal range.

[0037] If necessary, start booster pump 2 to pressurize the working fluid through first connector 3 and second connector 8. Ensure all connecting flanges and seals are correctly installed to prevent working fluid leakage. Monitor the connection between pressure tank 7 and main connecting pipe 5 using instruments and valves. Make necessary adjustments based on system pressure and flow to ensure efficient system operation.

[0038] When the system pressure is too high, pressure relief is performed through pressure relief pipe 15 to prevent system failure. Ensure that the main control pipe and branch pipes of pressure relief pipe 15 are working properly to effectively relieve pressure inside the circulation pipe 13. If a booster pump 2 is damaged, close its corresponding second control valve 9 and replace it quickly. Adjust the number of booster pumps 2 according to different altitudes in high-altitude areas to adapt to different operating environments. After use, close all control valves and manual valves 12 to ensure the system is in a safe state. Perform equipment inspection to ensure all components are in good working order and prepare for the next use.

[0039] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A ground source heat pump low-boiling-point working fluid circulation booster device, comprising circulation pipes (13) and multi-connector pipes, wherein the front ends of two circulation pipes (13) are connected to a first multi-connector pipe (11) and a second multi-connector pipe (14), characterized in that: The circulation pipe (13) is connected to a docking main pipe (10) through a first multi-connector pipe (11). Multiple second control valves (9) are connected to the side wall of the docking main pipe (10). Each second control valve (9) is connected to a second connecting pipe (8). Each second connecting pipe (8) is connected to a booster pump (2). A first control valve (4) is connected to the booster pump (2) through a first connecting pipe (3). Multiple first control valves (4) are connected to a connecting main pipe (5). The connecting main pipe (5) is connected to a pressure tank (7) through a connecting pipe (6). A manual valve (12) is connected between the circulation pipe (13) and the multi-connector pipe. The multi-connector pipe is connected to the circulation pipe (13) through the manual valve (12). A pressure relief pipe (15) is provided between the two circulation pipes (13) and connected to it. The pressure relief pipe (15) realizes the pressure relief operation of the circulation pipe (13).

2. The ground source heat pump low-boiling-point working fluid circulation booster device according to claim 1, characterized in that: A bracket (1) is installed at the lower end of each of the booster pumps (2), and a protective cover is provided between the bracket (1) and the booster pump (2). The protective cover is fixed to the bracket (1) by bolts. The protective cover is located at the output end of the booster pump (2). A protruding rod is provided on the upper side wall of the bracket (1), and the connecting main pipe (5) is connected to the protruding rod by clamp.

3. The ground source heat pump low-boiling-point working fluid circulation booster device according to claim 2, characterized in that: The connecting main pipe (5) is welded and fixed to the first connecting pipe (3), and the connection between the first connecting pipe (3) and the connecting main pipe (5) is sealed. The docking main pipe (10) is welded and fixed to the second connecting pipe (8), and the connection between the second connecting pipe (8) and the docking main pipe (10) is sealed.

4. The ground source heat pump low-boiling-point working fluid circulation booster device according to claim 3, characterized in that: The first control valve (4) is connected to the first pipe (3) and the booster pump (2) via a connecting flange. The second control valve (9) is connected to the second pipe (8) and the booster pump (2) via a connecting flange. Sealing rings are provided at multiple pipe connections.

5. The ground source heat pump low-boiling-point working fluid circulation booster device according to claim 4, characterized in that: The first multi-connector pipe (11) and the second multi-connector pipe (14) are both five-way pipes. Both ends of the five-way pipe are sealed with plugs. The first multi-connector pipe (11), the second multi-connector pipe (14), the manual valve (12) and the circulation pipe (13) are connected by connecting flanges, and a sealing ring is provided at the connection.

6. The ground source heat pump low-boiling-point working fluid circulation booster device according to claim 5, characterized in that: The main control pipe of the pressure relief pipe (15) is located in the middle section of the circulation pipe (13). The branch pipes of the pressure relief pipe (15) extend to both ends of the circulation pipe (13) and the internal pressure of the circulation pipe (13) is released through the pressure relief pipe (15).

7. The ground source heat pump low-boiling-point working fluid circulation booster device according to claim 6, characterized in that: The connecting pipe (6) is connected to an instrument and a valve. The instrument is a flow meter. The valve enables the pressure tank (7) to be connected to the connecting main pipe (5).

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