Carbon dioxide heat pump evaporation assembly

By improving the CO2 heat pump evaporator through the design of a triangular prism-shaped outer casing and the support structure, the problems of high pressure and poor defrost water drainage were solved, thereby improving the safety and operating efficiency of the equipment.

CN223484573UActive Publication Date: 2025-10-28ANHUI QIANRUN ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Application Number
CN202422906850.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-27
Publication Date
2025-10-28
Estimated Expiration
2034-11-27

AI Technical Summary

Technical Problem

CO2 heat pump evaporators face high pressure requirements in design and performance, necessitating improved structural strength and safety, while also addressing the issue of poor defrost water drainage.

Method used

It adopts a triangular prism-shaped outer cover design, with finned body and coil inside. The outer cover has reinforcing ribs and side baffles on both sides to support the structure. The bottom drain collects defrosting water, and a heating plate is embedded in the water tank plate to improve structural strength and defrosting efficiency.

Benefits of technology

It improves the structural strength and safety of the equipment, ensures smooth discharge of defrosting water, reduces defrosting power consumption, and adapts to operation in low-temperature environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a carbon dioxide heat pump evaporation assembly, and particularly relates to the technical field of heat pumps, the carbon dioxide heat pump evaporation assembly comprises a triangular prism-shaped outer cover, the inner part of the outer cover is hollow, the front end and the rear end of the outer cover are respectively and fixedly provided with a cover plate, the inner part of the outer cover is uniformly provided with a plurality of fin bodies, and a plurality of coil pipes are inserted among the plurality of fin bodies; the coil pipe penetrates through the cover plate and extends to the outer side of the cover plate, reinforcing pieces are symmetrically installed on the outer walls of the two sides of the outer cover, a drainage piece is arranged at the bottom of the outer cover, and the bottom ends of the reinforcing pieces extend to the inner side of the drainage piece. Multiple supporting and fixing are carried out on the outer cover of the evaporation component through multiple structures inside and outside, the overall strength of the outer cover structure is improved, the pressure bearing capacity of equipment in the operation process is improved, the safety of the equipment is improved, meanwhile, the problem that the defrosting time of the evaporation component is too long in the operation process is solved, and the defrosting efficiency is improved. And smooth drainage of defrosting water at low temperature is facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of heat pump technology, and more specifically, to a carbon dioxide heat pump evaporation component. Background Technology

[0002] Heat pump technology is an efficient method of heating and cooling that utilizes energy by transferring heat rather than directly burning fuel to provide thermal or cooling energy. In a heat pump system, the evaporator is a key component; it is responsible for absorbing heat from the environment and transferring it to the space or fluid that needs heating.

[0003] Carbon dioxide (CO2), as a natural refrigerant, has attracted attention due to its lack of ozone layer depletion potential and extremely low global warming potential. CO2 heat pump systems exhibit a high coefficient of performance (COP) at low temperatures, making them an ideal environmentally friendly option. However, CO2 heat pump evaporators still face some design and performance challenges, such as the fact that CO2 operates at much higher pressures than traditional refrigerants, requiring evaporators with higher structural strength and safety. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a carbon dioxide heat pump evaporation component, including a triangular prism-shaped outer cover with a hollow interior. A cover plate is fixedly installed at the front and rear ends of the outer cover. Several fin bodies are evenly installed inside the outer cover, and several coils are inserted between the fin bodies. The coils extend through the cover plates to the outside of the cover plates. Symmetrically arranged reinforcing members are installed on the outer walls of both sides of the outer cover. A flow guide is provided at the bottom of the outer cover, and the bottom end of the reinforcing member extends to the inside of the flow guide.

[0005] In a preferred embodiment, the reinforcing member includes a plurality of reinforcing ribs attached to the side wall of the outer cover, the reinforcing ribs being equidistantly distributed, and a side baffle parallel to the side wall of the outer cover being attached to the edge of the reinforcing ribs, the side baffles and the reinforcing ribs being distributed in a "T" shape.

[0006] In a preferred embodiment, the side baffle and the reinforcing rib are integrally formed, and a groove recessed towards the center is formed on the inner side wall of the side baffle near the outer cover, with the edge of the reinforcing rib fixed at the center of the groove.

[0007] In a preferred embodiment, the fin body is fixed to the inner wall of the outer cover, and an auxiliary pressure strip is installed at the edges on both sides of the fin body. The auxiliary pressure strip is fixedly connected to the edge of the fin body and the inner wall of the outer cover.

[0008] In a preferred embodiment, the draining component includes a water trough plate located directly below the outer cover, with a recessed water trough on the water trough plate, a heating plate embedded inside the water trough plate, and fixing strips installed at the bottom of both sides of the water trough plate, with a plurality of through holes evenly distributed on the fixing strips.

[0009] In a preferred embodiment, connecting plates are installed on the top of both sides of the water tank plate, and the top of the connecting plates is attached to the outer wall of several side baffles.

[0010] The technical effects and advantages of this utility model are as follows:

[0011] This utility model provides multiple supports and fixations for the outer cover of the evaporation component through various internal and external structures, thereby improving the overall strength of the outer cover structure, increasing the pressure bearing capacity of the equipment during operation, and enhancing the safety of the equipment. At the same time, it addresses the problem of excessive defrosting time for the evaporation component during operation and facilitates smooth drainage of defrosting water at low temperatures. Attached Figure Description

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of the outer casing of this utility model;

[0014] Figure 3 For the utility model Figure 2 Detailed structural diagram of point A in the middle.

[0015] Explanation of reference numerals in the attached drawings: 1 Outer cover, 2 Cover plate, 3 Fin body, 4 Coil, 5 Reinforcing rib, 6 Side baffle, 7 Slot, 8 Auxiliary pressure strip, 9 Water tank plate, 10 Water tank, 11 Heating plate, 12 Fixing strip, 13 Through hole, 14 Connecting plate. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0017] like Figure 1-3The carbon dioxide heat pump evaporation assembly shown includes a triangular prism-shaped outer cover 1, which is hollow inside. A cover plate 2 is fixedly installed at the front and rear ends of the outer cover 1. A plurality of fin bodies 3 are evenly installed inside the outer cover 1. A plurality of coils 4 are inserted between the fin bodies 3. The coils 4 pass through the cover plates 2 and extend to the outside of the cover plates 2. Symmetrically arranged reinforcing members are installed on the outer walls on both sides of the outer cover 1. A flow guide is provided at the bottom of the outer cover 1. The bottom end of the reinforcing member extends to the inside of the flow guide.

[0018] Furthermore, the outer cover 1 is a regular triangular prism, and the several fin bodies 3 inside the outer cover 1 are also triangular. The fin bodies 3 provide evaporation for the evaporation components and also provide support for the structure of the outer cover 1. The reinforcing members on the two side walls of the outer cover 1 enhance the structural support strength of the side of the outer cover 1, improve the pressure bearing capacity of the equipment during operation, and thus improve safety.

[0019] The reinforcing member includes a plurality of reinforcing ribs 5 attached to the side wall of the outer cover 1. The reinforcing ribs 5 are evenly distributed. A side baffle 6 parallel to the side wall of the outer cover 1 is attached to the edge of the reinforcing ribs 5. The side baffle 6 and the reinforcing ribs 5 are distributed in a "T" shape.

[0020] Furthermore, the equidistant distribution of several reinforcing ribs 5 can improve the compressive strength of both sides of the outer cover 1, and the top center of the outer cover 1 bulges upward, so that the condensate and defrost water generated by the frequent temperature changes during the operation of the carbon dioxide heat pump can flow out easily.

[0021] The side baffle 6 and the reinforcing rib 5 are integrated. A groove 7 that is recessed towards the center is provided on the inner side wall of the side baffle 6 near the outer cover 1. The edge of the reinforcing rib 5 is fixed at the center of the groove 7.

[0022] Among them, the outer side of the reinforcing rib 5 is assisted by the side baffle 6, so that the condensate and defrost water on both sides of the outer cover 1 can flow downward along the reinforcing rib 5, the side baffle 6 and the slot 7 during the discharge process, so as to keep the drainage smooth, avoid excessive frost and reduce defrosting power consumption.

[0023] Furthermore, the side baffle 6 is placed on the outside, which, together with the slot 7, can play a certain role in gas interception, so that the cold air generated by the carbon dioxide heat pump evaporation component during operation can be suspended on both sides of the outer cover 1, thereby improving the operating effect of the evaporator.

[0024] The fin body 3 is fixed on the inner wall of the outer cover 1. An auxiliary pressure strip 8 is installed on the edges of both sides of the fin body 3. The auxiliary pressure strip 8 is fixedly connected to the edge of the fin body 3 and the inner wall of the outer cover 1.

[0025] Furthermore, the auxiliary pressure strip 8 is placed at the edge of the fin body 3, which plays an auxiliary role in the fixed installation of the fin body 3 inside the outer cover 1, and together with the fin body 3, it plays a supporting role inside the outer cover 1, reducing the risk of the fin body 3 falling off the inner wall of the outer cover 1, thereby improving the structural strength and safety of the evaporation component.

[0026] The drainage component includes a water tank plate 9 located directly below the outer cover 1, a recessed water tank 10 is provided on the water tank plate 9, a heating plate 11 is embedded inside the water tank plate 9, and fixing strips 12 are installed at the bottom of both sides of the water tank plate 9, with a plurality of through holes 13 evenly provided on the fixing strips 12.

[0027] Furthermore, the water tank plate 9 is placed at the bottom of the outer cover 1 to collect and discharge the condensate and defrost water flowing down the outer wall and side baffles 6 of the outer cover 1. A heating plate 11 is embedded in the water tank plate 9 to increase the ambient temperature of the space at the bottom of the outer cover 1, thereby improving the problem of excessive defrosting time of the evaporation components during operation and facilitating smooth drainage of defrost water at low temperatures.

[0028] Connecting plates 14 are installed on the top of both sides of the sink plate 9. The top of the connecting plates 14 is attached to the outer wall of several side baffles 6. The sink plate 9 is suspended from the bottom of the side baffles 6 by the connecting plates 14, which also provides support and fixation for the side baffles 6 and the reinforcing ribs 5. The fixing strips 12 and through holes 13 on the outside of the sink plate 9 are used to fix and install the sink plate 9.

[0029] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A carbon dioxide heat pump evaporation assembly, characterized in that, The device includes a triangular prism-shaped outer cover with a hollow interior. Cover plates are fixedly installed at the front and rear ends of the outer cover. Several fin bodies are evenly installed inside the outer cover, and several coils are interspersed between the fin bodies. The coils extend through the cover plates to the outside of the cover plates. Symmetrically arranged reinforcing members are installed on the outer walls of both sides of the outer cover. A flow guide is provided at the bottom of the outer cover, and the bottom end of the reinforcing member extends to the inside of the flow guide.

2. The carbon dioxide heat pump evaporation assembly according to claim 1, characterized in that: The reinforcing member includes several reinforcing ribs attached to the side wall of the outer cover. The reinforcing ribs are evenly distributed, and a side baffle parallel to the side wall of the outer cover is attached to the edge of the reinforcing ribs. The side baffle and the reinforcing ribs are distributed in a "T" shape.

3. The carbon dioxide heat pump evaporation assembly according to claim 2, characterized in that: The side baffle and the reinforcing rib are integrated. A groove is provided on the inner side wall of the side baffle near the outer cover, which is recessed towards the center. The edge of the reinforcing rib is fixed in the middle of the groove.

4. The carbon dioxide heat pump evaporation assembly according to claim 1, characterized in that: The fin body is fixed to the inner wall of the outer cover, and an auxiliary pressure strip is installed at the edges on both sides of the fin body. The auxiliary pressure strip is fixedly connected to the edge of the fin body and the inner wall of the outer cover.

5. A carbon dioxide heat pump evaporation assembly according to claim 2, characterized in that: The drainage component includes a water trough plate located directly below the outer cover, with a recessed water trough on the water trough plate, a heating plate embedded inside the water trough plate, and fixing strips installed at the bottom of both sides of the water trough plate, with several through holes evenly distributed on the fixing strips.

6. A carbon dioxide heat pump evaporation assembly according to claim 5, characterized in that: Connecting plates are installed on the top of both sides of the water tank plate, and the top of the connecting plates is attached to the outer wall of several side baffles.