Novel carbon dioxide heat pump heat supply device

By introducing a rotating disc and a drive mechanism into the condenser, the heat exchange time between carbon dioxide gas and water is extended, and the heat exchange uniformity is improved by the rotation of the disc. This solves the problem of insufficient heat exchange between carbon dioxide gas and water in the condenser and achieves more efficient heat utilization.

CN223512173UActive Publication Date: 2025-11-04BEIJING HEATING GROUP CO LTD CHAOYANG FIRST BRANCH
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Patent Information

Application Number
CN202422891054.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-26
Publication Date
2025-11-04
Estimated Expiration
2034-11-26

AI Technical Summary

Technical Problem

In existing carbon dioxide heat pump heating devices, the heat exchange between carbon dioxide gas and water in the condenser is insufficient, resulting in incomplete heat utilization and heat loss.

Method used

A novel condenser was designed, comprising a rotating disk and a drive mechanism. High-temperature carbon dioxide gas is stored through the through holes on the rotating disk to prolong its heat exchange time with water. At the same time, a bevel gear drives the rotating disk to rotate, allowing the gas to flow at different positions within the condenser to improve the uniformity of heat exchange.

Benefits of technology

It prolongs the heat exchange time between carbon dioxide gas and water, improves heat utilization and heat exchange uniformity, and reduces heat loss.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a novel carbon dioxide heat pump heating device, which relates to the technical field of heat pump heating devices and comprises a compressor, an evaporator and a condenser, the evaporator is communicated with the compressor, the condenser is mounted at the lower end of the evaporator and communicated with an output pipe of the compressor, and supports are fixedly mounted at two ends of the bottom of the condenser. According to the novel carbon dioxide heat pump heat supply device, gas is stored in the conducting holes, heat can be conducted to the rotating disc, the heat can be conducted to the rotating disc, the heat can be transferred to the rotating disc, the heat can be transferred to the rotating disc, the heat can be transferred to the rotating disc, and the heat can be transferred to the rotating disc. The heat exchange time of the high-temperature carbon dioxide gas and water can be prolonged by prolonging the storage time of the high-temperature carbon dioxide gas in the turntable through water or other media conducted into the condenser through the turntable, so that the heat utilization rate of the high-temperature carbon dioxide gas is increased.
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Description

Technical Field

[0001] This utility model relates to the technical field of heat pump heating devices, and in particular to a novel carbon dioxide heat pump heating device. Background Technology

[0002] Carbon dioxide heat pump heating systems are air-source heat pump products that use carbon dioxide, a natural refrigerant. They convert low-temperature heat energy into high-temperature heat energy through heat pump technology to provide hot water. This product can be widely used in high-end hotels, schools, hospitals, and other residential settings, as well as in industrial sectors such as textiles and slaughterhouses. It boasts advantages such as high efficiency, environmental friendliness, and energy saving, meeting modern society's requirements for energy conservation and environmental protection.

[0003] For example, a carbon dioxide heat pump heating device with publication number CN218532192U discloses a carbon dioxide heat pump. The heat pump has a partition fixedly installed inside, with a water tank on its surface. A drain pipe connected to the water tank is fixedly installed on the partition surface, and a motor is fixedly installed on the partition surface. The motor's output end rotates through the partition and extends into its interior. In this carbon dioxide heat pump heating device, a second bevel gear drives a first bevel gear and a rotating shaft to rotate, thereby causing a cleaning brush to rotate. When the sealing box moves, the cleaning brush enters the drain pipe, facilitating cleaning and preventing impurities from clogging its interior.

[0004] The condenser of existing carbon dioxide heat pump heating devices is used to transfer the heat released by the high-temperature and high-pressure carbon dioxide gas discharged from the compressor to water or other media to heat them up. However, due to insufficient heat exchange between the carbon dioxide gas and water in the condenser, the heat in the carbon dioxide gas is not fully utilized, resulting in heat loss. To address this, we propose a new type of carbon dioxide heat pump heating device. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a novel carbon dioxide heat pump heating device, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: A novel carbon dioxide heat pump heating device includes: a compressor, an evaporator, and a condenser. The evaporator is connected to the compressor, and a condenser is installed at the lower end of the evaporator. The condenser is connected to the output pipe of the compressor. Supports are fixedly installed at both ends of the bottom of the condenser. Multiple threaded mounting holes are provided on the supports. One end of the condenser is connected to and fixedly installed with an inlet pipe, and the other end of the condenser is connected to and fixedly installed with a drain pipe.

[0007] The condenser contains a turntable with multiple equidistant notches on its outer side and multiple circularly arranged through holes inside the turntable. One end of each through hole penetrates the turntable, and the opposite ends of the through holes are connected. A side tube is fixedly installed on the turntable and communicates with the through holes. A drive mechanism is provided on the condenser, extending into the condenser and connected to the center of the turntable. The drive mechanism can drive the turntable to rotate. A sealing plug is provided inside the side tube, and the sealing plug has multiple circularly arranged inner holes. A spring telescopic rod is provided between the sealing plug and the turntable, and the spring telescopic rod is fixedly installed on the turntable with its movable end fixedly connected to the sealing plug.

[0008] As a further technical solution of this utility model, flanges are provided at the ends of both the inlet pipe and the outlet pipe.

[0009] As a further technical solution of this utility model, a flow detection device is installed above one end of the condenser, and the detection end of the flow detection device is located inside the condenser.

[0010] As a further technical solution of this utility model, the driving mechanism includes a support plate, which is fixedly connected to the condenser. A connecting shaft is rotatably mounted on the support plate, and one end of the connecting shaft is fixedly connected to the turntable.

[0011] As a further technical solution of this utility model, a motor is fixedly installed outside the condenser, the output shaft of the motor extends into the condenser, and meshing bevel gears are installed on the opposite ends of the output shaft and the connecting shaft of the motor.

[0012] This utility model provides a novel carbon dioxide heat pump heating device, which has the following advantages compared with the prior art:

[0013] 1. This design discloses a novel carbon dioxide heat pump heating device in which gas is stored inside a through-hole, and heat can be conducted to a rotating disc, and then to water or other media in the condenser. When the gas pressure inside the through-hole increases, the inner hole connects with the inner cavity of the condenser, and the gas inside the through-hole can be discharged into the condenser. By extending the storage time of high-temperature carbon dioxide gas in the rotating disc, the heat exchange time between high-temperature carbon dioxide gas and water can be extended, thereby improving the heat utilization rate of high-temperature carbon dioxide gas.

[0014] 2. This design is a novel carbon dioxide heat pump heating device. During the heat exchange process, the motor drives the connecting shaft to rotate through two bevel gears, which in turn drives the turntable to rotate around the connecting shaft. The high-temperature carbon dioxide gas in the through hole can rotate to different positions inside the condenser, making the water flowing inside the condenser come into more uniform contact with the high-temperature carbon dioxide gas, thus improving the heat exchange uniformity. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a novel carbon dioxide heat pump heating device.

[0016] Figure 2 A front view of a novel carbon dioxide heat pump heating device;

[0017] Figure 3 This is an enlarged schematic diagram of the internal structure of the condenser in a novel carbon dioxide heat pump heating device.

[0018] Figure 4 This is an enlarged cross-sectional view of the turntable of a novel carbon dioxide heat pump heating device.

[0019] In the diagram: 1. Compressor; 2. Evaporator; 3. Condenser; 4. Bracket; 5. Inlet pipe; 6. Drain pipe; 7. Flange; 8. Flow detection device; 9. Turntable; 10. Output pipe; 11. Notch; 12. Through hole; 13. Side pipe; 14. Sealing plug; 15. Inner hole; 16. Spring telescopic rod; 17. Support plate; 18. Connecting shaft; 19. Motor; 20. Bevel gear. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 This utility model provides a novel carbon dioxide heat pump heating device: A novel carbon dioxide heat pump heating device includes a compressor 1, an evaporator 2, and a condenser 3. The evaporator 2 is connected to the compressor 1. The condenser 3 is installed at the lower end of the evaporator 2 and is connected to the output pipe 10 of the compressor 1. Supports 4 are fixedly installed at both ends of the bottom of the condenser 3. Multiple equally spaced threaded mounting holes are provided on the supports 4. One end of the condenser 3 is connected to and fixedly installed with a liquid inlet pipe 5, and the other end is connected to and fixedly installed with a liquid drain pipe 6. In the evaporator 2, carbon dioxide refrigerant absorbs heat energy from the air and evaporates into a gaseous state. At this time, the refrigerant temperature is low, but the pressure is also low. The compressor 1 compresses the low-temperature, low-pressure carbon dioxide gas in the evaporator 2 into a high-temperature, high-pressure gas, at which point both the temperature and pressure of the refrigerant increase. After the high-temperature, high-pressure carbon dioxide gas enters the condenser 3, it transfers the heat it carries to water or other media, heating them. Simultaneously, the carbon dioxide gas itself cools and liquefies into a liquid state. Through the above-described cycle, the new carbon dioxide heat pump heating device can continuously absorb heat energy from the air and transfer it to water or other media, thereby achieving the purpose of heating.

[0022] Among them, such as Figure 3 and Figure 4 As shown, a turntable 9 is installed inside the condenser 3. Multiple equidistant notches 11 are opened on the outer side of the turntable 9. Multiple through holes 12 arranged in a circular array are opened inside the turntable 9. One end of each through hole 12 penetrates the turntable 9, and the opposite ends of the multiple through holes 12 are connected. A side tube 13 is fixedly installed on the turntable 9, communicating with the through holes 12. A drive mechanism is installed on the condenser 3, extending into the condenser 3 and connected to the center of the turntable 9. The drive mechanism can drive the turntable 9 to rotate. A sealing plug 14 is installed inside the side tube 13, and multiple circularly arranged inner holes 15 are opened inside the sealing plug 14. A spring telescopic rod 16 is installed between the sealing plug 14 and the turntable 9, with its movable end fixedly connected to the sealing plug 14. Flanges 7 are installed at the ends of both the inlet pipe 5 and the outlet pipe 6. The high-temperature carbon dioxide gas discharged from the output pipe 10 is received through the through hole 12 on the turntable 9. The gas is stored inside the through hole 12, and the heat can be conducted to the turntable 9. Through the turntable 9, the heat can be conducted to the water or other medium in the condenser 3. When the gas pressure inside the through hole 12 increases, the sealing plug 14 moves outward, the spring telescopic rod 16 is stretched, and the inner hole 15 communicates with the inner cavity of the condenser 3. The gas in the through hole 12 can be discharged into the condenser 3. By extending the storage time of the high-temperature carbon dioxide gas in the turntable 9, the heat exchange time between the high-temperature carbon dioxide gas and the water can be extended.

[0023] A flow detection device 8 is installed above one end of the condenser 3, with its detection end located inside the condenser 3. The drive mechanism includes a support plate 17 fixedly connected inside the condenser 3. A connecting shaft 18 is rotatably mounted on the support plate 17, with one end of the connecting shaft 18 fixedly connected to a turntable 9. A motor 19 is fixedly mounted outside the condenser 3, with its output shaft extending into the condenser 3. Meshing bevel gears 20 are installed at the opposite ends of the motor 19 and the connecting shaft 18. During heat exchange, the motor 19 drives the connecting shaft 18 to rotate via the two bevel gears 20, which in turn drives the turntable 9 to rotate around the connecting shaft 18. The high-temperature carbon dioxide gas in the through-hole 12 can rotate to different positions inside the condenser 3, resulting in more uniform contact between the water flowing inside the condenser 3 and the high-temperature carbon dioxide gas, thus improving heat exchange uniformity.

[0024] The working principle of this invention is as follows: In evaporator 2, carbon dioxide refrigerant absorbs heat energy from the air and evaporates into a gaseous state. At this time, the refrigerant temperature is low, but the pressure is also low. Compressor 1 compresses the low-temperature, low-pressure carbon dioxide gas in evaporator 2 into a high-temperature, high-pressure gas, at which point both the temperature and pressure of the refrigerant increase. After entering condenser 3, the high-temperature, high-pressure carbon dioxide gas transfers its heat to water or other media, heating them. Simultaneously, the carbon dioxide gas cools itself and liquefies into a liquid state. Through the above cycle, the novel carbon dioxide heat pump heating device can continuously absorb heat energy from the air and transfer it to water or other media, thereby achieving the purpose of heating.

[0025] High-temperature carbon dioxide gas discharged from the output pipe 10 is received through the through-hole 12 on the turntable 9. The gas is stored inside the through-hole 12, and its heat can be conducted to the turntable 9, and then to the water or other media in the condenser 3. When the gas pressure inside the through-hole 12 increases, the sealing plug 14 moves outward, the spring telescopic rod 16 is stretched, and the inner hole 15 communicates with the inner cavity of the condenser 3, allowing the gas in the through-hole 12 to be discharged into the condenser 3. By extending the storage time of the high-temperature carbon dioxide gas in the turntable 9, the heat exchange time between the high-temperature carbon dioxide gas and the water can be extended, thereby improving the heat utilization rate of the high-temperature carbon dioxide gas. During the heat exchange process, the motor 19 drives the connecting shaft 18 to rotate through two bevel gears 20, which in turn drives the turntable 9 to rotate around the connecting shaft 18. The high-temperature carbon dioxide gas in the through-hole 12 can rotate to different positions inside the condenser 3, making the contact between the water flowing in the condenser 3 and the high-temperature carbon dioxide gas more uniform, thus improving the heat exchange uniformity.

[0026] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A novel carbon dioxide heat pump heating device, characterized in that, The evaporator (2) and condenser (3) are included. The evaporator (2) is connected to the compressor (1). The condenser (3) is installed at the lower end of the evaporator (2). The condenser (3) is connected to the output pipe (10) of the compressor (1). The bottom two ends of the condenser (3) are fixedly installed with brackets (4). The brackets (4) have multiple equally spaced threaded mounting holes. One end of the condenser (3) is connected to and fixedly installed with an inlet pipe (5). The other end of the condenser (3) is connected to and fixedly installed with a drain pipe (6). The condenser (3) is equipped with a turntable (9). Multiple equally spaced notches (11) are provided on the outer side of the turntable (9). Multiple through holes (12) arranged in a circular array are provided inside the turntable (9). One end of each through hole (12) penetrates the turntable (9), and the opposite ends of the multiple through holes (12) are in a connected state. A side tube (13) is fixedly installed on the turntable (9), and the side tube (13) communicates with the through holes (12). A drive mechanism is provided on the condenser (3). The drive mechanism extends into the condenser (3) and is connected to the center of the turntable (9). The drive mechanism can drive the turntable (9) to rotate. A sealing plug (14) is provided in the side tube (13). The sealing plug (14) has multiple circumferentially distributed inner holes (15). A spring telescopic rod (16) is provided between the sealing plug (14) and the turntable (9). The spring telescopic rod (16) is fixedly installed on the turntable (9) and its movable end is fixedly connected to the sealing plug (14).

2. The novel carbon dioxide heat pump heating device according to claim 1, characterized in that, The inlet pipe (5) and outlet pipe (6) are both equipped with flanges (7).

3. A novel carbon dioxide heat pump heating device according to claim 2, characterized in that, A flow detection device (8) is installed above one end of the condenser (3), and the detection end of the flow detection device (8) is located inside the condenser (3).

4. A novel carbon dioxide heat pump heating device according to claim 3, characterized in that, The drive mechanism includes a support plate (17), which is fixedly connected to the condenser (3). A connecting shaft (18) is rotatably mounted on the support plate (17), and one end of the connecting shaft (18) is fixedly connected to the turntable (9).

5. A novel carbon dioxide heat pump heating device according to claim 4, characterized in that, A motor (19) is fixedly installed outside the condenser (3). The output shaft of the motor (19) extends into the condenser (3). Meshing bevel gears (20) are installed on the opposite ends of the output shaft of the motor (19) and the connecting shaft (18).

Citation Information

Patent Citations

  • Carbon dioxide heat pump heat supply device

    CN218532192U