Ground source heat pump-air energy composite heating device for agricultural greenhouse

Abstract

The utility model discloses a ground source heat pump - air energy compound heating device for agricultural greenhouse belongs to heat source heating device field, the lateral wall of mixing tank is equipped with feed pipe line, and the outer end of feed pipe line is equipped with mixing pipe line, and the outer end of mixing pipe line is connected with the docking pipe, the communicating pipe, and the outer end of docking pipe is connected with the pump body, and the other end of pump body is connected with the connecting pipe. The mixing mechanism is connected with the ground source heat pump and air energy heat source system, utilizes both thermal energy advantage, promotes heating efficiency. The design ensures that the liquid and gas in the mixing tank are uniformly mixed, the stirring mechanism is stirred through the motor and the rod, the uneven distribution of thermal energy is avoided, and the thermal energy utilization rate is improved. The mixing mechanism has fluid regulating function, and the fluid direction and flow are controlled through the manual valve, and the different agricultural greenhouse heating demand is satisfied. The design considers the equipment stability and reliability, and the integrated component reduces the resistance, improves the operation efficiency, and the sealing ring ensures the sealing property, prevents the leakage, and guarantees the normal operation of equipment.

Description

Technical Field

[0001] This utility model relates to the field of heat source heating devices, and in particular to a ground source heat pump-air energy composite heating device for agricultural greenhouses. Background Technology

[0002] A search revealed that Chinese Patent Publication No. CN216384332U discloses a heating and cooling device for a geothermal and air energy composite energy source, which includes a ground source heat pump, a buried pipe heat exchanger, a ground source side water supply pipe, a ground source side water return pipe, a ground source side water supply pipe, a terminal water supply pipe, an air source side water supply pipe, and an air source side water return pipe. The ground source side water supply pipe connects the ground source heat pump and the buried pipe heat exchanger. The ground source side water return pipe connects the ground source heat pump, the ground source side circulation pump, and the buried pipe heat exchanger. The ground source side water supply pipe connects the ground source side water supply device and the ground source side circulation pump.

[0003] In the actual use of ground source heat pump-air source combined heating systems in agricultural greenhouses, there is indeed a drawback: uneven heat distribution due to the difference between the heat output from the ground source and the heat output from the air source. The root cause of this problem lies mainly in the operating characteristics of the two heat sources and the way they are integrated.

[0004] Ground source heat pumps extract heat from the soil through underground heat exchangers, resulting in relatively stable heat output that is less affected by changes in ambient temperature. However, air source heat pumps generate heat by exchanging heat with the air, and their heat output is significantly influenced by outdoor ambient temperature. In extreme weather conditions, such as severe winters, the heating efficiency of air source heat pumps may decrease significantly, thus affecting the overall heating effect.

[0005] When these two heat sources are used in combination, uneven heat distribution may occur if proper heat distribution and control are not achieved. Specifically, if the heat output of the ground source heat pump is much higher than that of the air source heat pump, some areas in the greenhouse may become overheated; conversely, if the heat output of the air source heat pump is dominant and its efficiency decreases in cold weather, these areas may not be able to reach the required temperature.

[0006] Furthermore, ground source heat pumps and air source heat pumps differ in their energy conversion efficiency during the heating process. Ground source heat pumps typically have a higher energy efficiency ratio (EER), extracting heat more effectively from the soil. The EER of air source heat pumps, however, is affected by various factors, including outdoor temperature, pump design, and operating conditions. This difference in EER can also lead to uneven heat distribution. Utility Model Content

[0007] The main purpose of this invention is to provide a ground source heat pump-air energy composite heating device for agricultural greenhouses, which can effectively solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0009] A ground source heat pump-air energy composite heating device for agricultural greenhouses includes a mounting base, a mixing tank, a connector, and a stirring mechanism. The mixing tank is mounted on the upper end of the mounting base via a bracket, the connector is located on the mixing tank, and the stirring mechanism is connected to the connector and agitates the liquid inside the mixing tank.

[0010] The mixing tank is equipped with a feed pipe on its side wall, and a mixing pipe is installed at the outer end of the feed pipe. The outer end of the mixing pipe is connected to a connecting pipe and a connecting pipe. The outer end of the connecting pipe is connected to a pump body, and the other end of the pump body is connected to a connecting pipe. The middle section of the connecting pipe is connected to a replenishment tank, and the replenishment tank is used to replenish the mixing tank.

[0011] The outer ends of the connecting pipe and the connecting tube are connected to straight pipes, and the tail ends of the straight pipes are connected to arc-shaped bends. The port of the straight pipe is connected to an auxiliary pipe. The auxiliary pipe, the connecting pipe, and the connecting tube are all equipped with manual valves.

[0012] In a preferred embodiment of this application, the pump body is mounted on a mounting base by a bracket, and a notch is provided on the side wall of the mounting base. A drain pipe is provided at the lower end of the mixing tank, and the drain pipe is located at the notch.

[0013] In a preferred embodiment of this application, the straight pipe and the curved bend are designed as a single unit, and the top view of the straight pipe and the curved bend is designed in the shape of a hook. The outer ends of the straight pipe and the curved bend are provided with connecting flanges, and the straight pipe is mounted on the mounting base by a bracket.

[0014] In a preferred embodiment of this application, the mixing pipe is connected to the connecting pipe, the feed pipe, and the butt pipe via threads, and a sealing ring is provided at the connection. Plugs are threaded to both ends of the mixing pipe.

[0015] In a preferred embodiment of this application, the manual valve has threaded ends, and is connected to an installation pipe, a connecting pipe, and a butt pipe through the threaded ends. A sealing ring is provided at the connection. The manual valve is either a butterfly valve or a ball valve. The outer end of the installation pipe is provided with a connecting flange.

[0016] In a preferred embodiment of this application, a valve is provided at the connection between the replenishment tank and the connecting pipe, and an insulation sleeve is provided on the surface of the replenishment tank.

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

[0018] The mixing mechanism effectively connects and blends the ground source heat pump system and the air source heat pump system. As two different heat sources, the ground source heat pump system and the air source heat pump system possess different characteristics and advantages in their thermal energy. The mixing mechanism can combine the thermal energy of these two systems, thereby fully utilizing their respective advantages and improving overall heating efficiency.

[0019] The mixing mechanism is designed to ensure uniform mixing of liquid and gas within the mixing tank. The stirring mechanism, through the cooperation of a stirring motor and stirring rod, agitates the liquid within the mixing tank, ensuring thorough mixing with the air-source and ground-source heat sources. This avoids uneven heat distribution and improves the utilization rate of heat energy.

[0020] The mixing mechanism also features flexible fluid regulation. Through manual valve adjustment, operators can control the flow direction and volume of the fluid according to actual needs, ensuring the appropriate input of the two heat source systems to meet the heating requirements of different agricultural greenhouses.

[0021] The design of the mixing mechanism also takes into account the stability and reliability of the equipment. Straight pipes, curved bends, and other components are designed as a single unit, reducing resistance during flow and improving operating efficiency. Simultaneously, each connection point is equipped with a sealing ring to ensure airtightness, prevent fluid leakage, and guarantee the normal operation of the equipment. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a side view of the overall structure of this utility model;

[0024] Figure 3 This is a diagram showing the overall structure of the present invention;

[0025] Figure 4 The diagram shows the mixing pipe, replenishment tank, pump body, curved bend, and straight pipe of this utility model.

[0026] In the diagram: 1. Mounting base; 2. Curved bend; 3. Straight pipe; 4. Addition pipe; 5. Manual valve; 6. Connecting pipe; 7. Replenishment tank; 8. Mixing pipe; 9. Feed pipe; 10. Connecting pipe; 11. Pump body; 12. Connecting pipe; 13. Mixing tank; 14. Joint; 15. Stirring mechanism. Detailed Implementation

[0027] 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.

[0028] like Figure 1 -Figure 4 As shown, a ground-source heat pump-air-source combined heating device for agricultural greenhouses mainly consists of a mounting base 1, a mixing tank 13, a connector 14, and a stirring mechanism 15. The mixing tank 13 is fixed to the upper end of the mounting base 1 by a bracket. The connector 14 is located on the top of the mixing tank 13, and the stirring mechanism 15 is connected to the connector 14 to agitate the liquid inside the mixing tank 13, ensuring uniform mixing. The stirring mechanism 15 includes a stirring motor and a stirring rod. The stirring rod is bolted to the output end of the stirring motor, and the stirring motor is fixed to the connector 14 via a connecting flange and bolts. A sealing ring is provided at the connection.

[0029] A feed pipe 9 is installed on the side wall of the mixing tank 13, and its outer end is connected to a mixing pipe 8. The other end of the mixing pipe 8 is connected to a connecting pipe 12 and a connecting pipe 6. The outer end of the connecting pipe 12 is connected to a pump body 11, and the other end of the pump body 11 is connected to the system through a connecting pipe 10. A replenishment tank 7 is also connected to the middle section of the connecting pipe 6. Liquid can be replenished to the mixing tank 13 through the replenishment tank 7, thereby ensuring the stable operation of the heating device. The arc-shaped bend pipe 2 is connected to the pipe of the air source heat source system to realize the input of the air source heat source. The straight pipe 3 and the auxiliary pipe 4 are connected to the pipe of the ground source heat pump system to realize the input of the ground source heat source. Then, the heat is input into the mixing tank 13 through the mixing pipe 8. The mixing mechanism 15 realizes the mixing of liquid and gas in the mixing tank 13, effectively realizing the connection of the two heat source systems.

[0030] The outer ends of the connecting pipe 6 and the connecting pipe 10 are connected to the straight pipe 3, and the tail end of the straight pipe 3 is connected to the curved bend 2. At the end of the straight pipe 3, an auxiliary pipe 4 is also connected. Manual valves 5 are provided on the auxiliary pipe 4, the connecting pipe 6, and the connecting pipe 10, so that the operator can adjust the flow of fluid as needed.

[0031] The pump body 11 is mounted on the mounting base 1 by a bracket. The side wall of the mounting base 1 is provided with a notch, and the lower end of the mixing tank 13 is provided with a drain pipe, which is located at the notch to facilitate the discharge and maintenance of the liquid.

[0032] The straight pipe 3 and the curved bend 2 are designed as a single unit, with a hook-shaped top view. This design not only effectively changes the flow direction of the fluid but also reduces resistance during the flow process. The outer ends of the straight pipe 3 and the curved bend 2 are equipped with connecting flanges. The straight pipe 3 is mounted on the mounting base 1 via a bracket, ensuring the stability and reliability of the device.

[0033] The mixing pipe 8 is connected to the connecting pipe 6, the connecting pipe 10, the feed pipe 9, and the connecting pipe 12 via threads. Sealing rings are installed at the connections to ensure airtightness and prevent fluid leakage. Plugs are threaded to both ends of the mixing pipe 8 to prevent fluid from overflowing from either end of the pipe.

[0034] The manual valve 5 has threaded ends, which connect to the mounting pipe 4, connecting pipe 6, and connecting pipe 12. Sealing rings are also provided at the connections to ensure the valve's tightness. The manual valve 5 can be either a butterfly valve or a ball valve, and is simple and convenient to operate. The outer end of the mounting pipe 4 has a connecting flange for easy connection to other components.

[0035] A valve is installed at the connection between the replenishment tank 7 and the connecting pipe 6, which controls the amount of liquid replenished from the replenishment tank 7 to the mixing tank 13. The surface of the replenishment tank 7 is covered with an insulation sleeve, which can effectively prevent heat loss and improve heating efficiency.

[0036] Open the valve of the replenishment tank 7 to add an appropriate amount of liquid to the mixing tank 13, ensuring stable operation of the heating device. Connect the curved bend 2 to the air source heat pump system pipeline to achieve air source heat pump input. Connect the straight pipe 3 and the auxiliary pipe 4 to the ground source heat pump system pipeline to achieve ground source heat pump input. As needed, operate the manual valve 5 (butterfly valve or ball valve) to adjust the fluid flow and ensure reasonable input of the two heat source systems. Start the pump body 11 to transport the fluid to the system through the connecting pipe 10. The stirring mechanism 15 starts working, stirring the liquid in the mixing tank 13 to ensure uniform mixing.

[0037] Air source heat source and ground source heat source are introduced into mixing tank 13 through mixing pipe 8 to achieve effective mixing of the two heat sources. The liquid state within mixing tank 13 is monitored to ensure uniform mixing and no leakage. The liquid within mixing tank 13 is drained and maintained through a drain pipe for easy operation and inspection. The sealing rings at the connections of mixing pipe 8, connecting pipe 6, connecting pipe 10, feed pipe 9, and connecting pipe 12 are ensured to be intact to prevent fluid leakage. The sealing performance of manual valve 5 is checked to ensure no leakage. The insulation sleeve on the surface of replenishment tank 7 is ensured to be intact to prevent heat loss and improve heating efficiency.

[0038] 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.

[0039] 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-air-source combined heating device for agricultural greenhouses, comprising a mounting base (1), a mixing tank (13), a connector (14), and a stirring mechanism (15), wherein the mixing tank (13) is mounted on the upper end of the mounting base (1) via a bracket, the connector (14) is located on the mixing tank (13), and the stirring mechanism (15) is connected to the connector (14) and agitates the liquid inside the mixing tank (13) by stirring the mechanism (15), characterized in that: The mixing tank (13) is equipped with a feed pipe (9) on its side wall, and a mixing pipe (8) is installed at the outer end of the feed pipe (9). The outer end of the mixing pipe (8) is connected to a connecting pipe (12) and a connecting pipe (6). The outer end of the connecting pipe (12) is connected to a pump body (11), and the other end of the pump body (11) is connected to a connecting pipe (10). The middle section of the connecting pipe (6) is connected to a replenishing tank (7), and the replenishing of the mixing tank (13) is achieved through the replenishing tank (7). The outer ends of the connecting pipe (6) and the connecting pipe (10) are connected to a straight pipe (3), and the tail end of the straight pipe (3) is connected to an arc-shaped bend (2). The port of the straight pipe (3) is connected to an auxiliary pipe (4). The auxiliary pipe (4), the connecting pipe (6), and the connecting pipe (10) are all equipped with manual valves (5).

2. The ground source heat pump-air energy composite heating device for agricultural greenhouses according to claim 1, characterized in that: The pump body (11) is mounted on the mounting base (1) by a bracket, and the side wall of the mounting base (1) has a notch. The lower end of the mixing tank (13) is provided with a drain pipe, and the drain pipe is located at the notch.

3. The ground source heat pump-air energy composite heating device for agricultural greenhouses according to claim 2, characterized in that: The straight pipe (3) and the curved bend (2) are designed as a single unit, and the top view of the straight pipe (3) and the curved bend (2) is designed in the shape of a hook. The outer ends of the straight pipe (3) and the curved bend (2) are provided with connecting flanges, and the straight pipe (3) is installed on the mounting base (1) by means of a bracket.

4. The ground source heat pump-air energy composite heating device for agricultural greenhouses according to claim 3, characterized in that: The mixing pipe (8) is connected to the connecting pipe (6), the connecting pipe (10), the feed pipe (9) and the connecting pipe (12) by threads, and a sealing ring is provided at the connection. The two ends of the mixing pipe (8) are connected to plugs by threads.

5. The ground source heat pump-air energy composite heating device for agricultural greenhouses according to claim 4, characterized in that: The manual valve (5) has threaded ends at both ends, and is connected to the mounting pipe (4), connecting pipe (6), and connecting pipe (12) through the threaded ends. A sealing ring is provided at the connection. The manual valve (5) can be either a butterfly valve or a ball valve. The outer end of the mounting pipe (4) is provided with a connecting flange.

6. The ground source heat pump-air energy composite heating device for agricultural greenhouses according to claim 5, characterized in that: A valve is provided at the connection between the replenishment tank (7) and the connecting pipe (6), and the surface of the replenishment tank (7) is covered with an insulation sleeve.

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