Air handling module for an energy storage air conditioner

Abstract

The utility model discloses an air treatment module for energy storage air conditioner, including axial flow fan wheel, motor, flow guide pressurizing device and protective net, flow guide pressurizing device includes air guide ring, the motor mounting seat in the middle of the bottom of the cavity surrounded by air guide ring, the circumferential interval distribution of a plurality of blades of connecting motor mounting seat and air guide ring inner wall, the motor is installed on the motor mounting seat, and the axial flow fan wheel is sleeved on the motor, air guide ring is cylindrical, and the inner wall of the section of air guide ring close to the air inlet position is arc guiding surface, makes the air inlet form the drainage structure of big down small, and the inner wall of the section of air guide ring close to the air outlet position forms the diffuser surface, and makes the air outlet form the diffuser structure of small down big. It greatly optimizes the state of the import and export flow field of axial flow fan wheel to reach the effect of improving the efficiency of air treatment module, and reduces the noise.

Description

Technical fields:

[0001] This utility model relates to an air handling module for energy storage air conditioning, which belongs to an axial flow fan. Background technology:

[0002] Energy storage air conditioning, as an innovative product combining energy storage technology with traditional air conditioning systems, has broad development prospects and has already achieved commercial application in multiple fields, especially in energy conservation and emission reduction, grid peak shaving, and renewable energy integration. With technological advancements and policy support, its application scope will further expand, becoming an important component of the future energy system. As the core component for heat exchange, the quality of its air handling module determines the quality of the energy storage fan. Background: Problems and shortcomings of the technology;

[0003] 1. Currently, most existing air handling modules use axial flow fans. However, due to their compact overall structure, the resistance of current energy storage air conditioners is relatively high. The performance of existing air handling modules is very poor when applied due to their structure. At the same time, the airflow processed by the air handling module is prone to dispersion during operation. When subjected to external factors such as high ambient temperature and wind, the high-temperature airflow from the heat exchanger during air conditioning cooling has not been diluted and cooled after passing through the air handling module. The airflow returns to the heat exchanger, which can easily lead to the shutdown of the energy storage air conditioner or equipment.

[0004] 2. Currently, mainstream air handling modules need to overcome system resistance during operation, requiring higher rotation speeds to do so. However, the direct negative consequence of high rotation speed is high noise, which has been a source of customer complaints.

[0005] 3. Due to the special application of existing air handling module solutions, which require convenient and simple maintenance, the matching air guide rings are generally linear, resulting in poor energy efficiency.

[0006] 4. In the existing solution, since the guide component and the fan are relatively independent components, the fan is prone to scraping against the stationary guide component during rotation due to process and assembly issues. Summary of the Invention:

[0007] The purpose of this invention is to provide an air handling module for energy storage air conditioners, which solves the technical problem that in the prior art, the air handling module experiences high resistance during operation, and the airflow after being processed by the air handling module is prone to divergence, resulting in backflow and affecting efficiency.

[0008] The objective of this utility model is achieved through the following technical solution.

[0009] An air handling module for energy storage air conditioning includes an axial flow impeller, a motor, a flow guiding and pressurizing device, and a protective net. The flow guiding and pressurizing device includes an air guide ring, a motor mounting base located at the bottom center of the cavity enclosed by the air guide ring, and several circumferentially spaced blades connecting the motor mounting base and the inner wall of the air guide ring. The motor is mounted on the motor mounting base, and the axial flow impeller is fitted onto the motor. The air guide ring is cylindrical, with an arc-shaped guiding surface on the inner wall near the air inlet, creating a flow guiding structure at the air inlet that is wider at the top and narrower at the bottom. A diffuser surface is formed on the inner wall near the air outlet, creating a diffuser structure at the air outlet that is narrower at the top and wider at the bottom. The diffuser surface is a sloped surface in cross-section.

[0010] Preferably, the diffusion angle α formed between the diffusion surface and the axis L is an acute angle. The diffusion angle α is in the range of 1 degree to 15 degrees.

[0011] Preferably, the outer diameter of the axial flow impeller is D1, the outer diameter of the guide ring is D2, and the relationship between the two is: D2 / D1 is in the range of 1.01-1.2.

[0012] Preferably, the total height of the axial flow impeller after the flow guiding and pressurizing device is H, and the height of the flow guiding and pressurizing device is H1. The relationship between the two is that H1 / H is in the range of 0.5-0.85.

[0013] Preferably, the height of the blade is H3, the height of the flow guiding and pressurizing device is H1, and the relationship between the two is: H3 / H1 is in the range of 0.25-0.5.

[0014] Preferably, the height of the axial flow impeller protruding from the flow guiding and pressurizing device is H2, and the ratio of H2 to H1 is in the range of 0.4-0.8.

[0015] Preferably, the height of the diffuser is H4, and the ratio of H4 to H1 is in the range of 0.15-0.3.

[0016] Preferably, the height of the arc-shaped guide surface is H5, and the ratio of H5 to H4 is in the range of 0.4-0.65.

[0017] Compared with the prior art, this utility model has the following advantages:

[0018] 1) The airflow guiding and pressurizing device of this utility model includes an air guide ring, a motor mounting base, and several blades. The motor is mounted on the motor mounting base. The air guide ring is cylindrical, and the inner wall of the air guide ring near the air inlet is an arc-shaped guiding surface, forming an airflow guiding structure that is larger at the top and smaller at the bottom at the air inlet. The inner wall of the air guide ring near the air outlet forms a diffusion surface, forming a diffusion structure that is smaller at the top and larger at the bottom at the air outlet. Using an axial flow impeller in conjunction with the airflow guiding and pressurizing device, after the airflow exits the tail edge of the axial flow impeller, the airflow is partially deflected back to the axial direction by the airflow guiding and pressurizing device. At the same time, the kinetic energy of the deflected airflow is converted into static pressure energy, thereby overcoming the system resistance and greatly optimizing the inlet and outlet flow field of the axial flow impeller, thus improving the efficiency of the air handling module.

[0019] 2. Other advantages of this utility model are described in detail in the embodiments section. Attached image description:

[0020] Figure 1 This is a perspective view of the present invention from one angle;

[0021] Figure 2 This is a perspective view of the present invention from another angle;

[0022] Figure 3 This is an exploded view of the present invention;

[0023] Figure 4 This is a perspective view of the flow guiding and pressurizing device of this utility model;

[0024] Figure 5 This is a top view of the present invention;

[0025] Figure 6 yes Figure 5 AA section view;

[0026] Figure 7 yes Figure 6 A magnified view of part B;

[0027] Figure 8 This is a sectional view of the present invention after dimensions have been marked. Detailed implementation method:

[0028] The present invention will now be described in further detail through specific embodiments and in conjunction with the accompanying drawings.

[0029] like Figures 1 to 8As shown, this embodiment provides an air handling module for energy storage air conditioning, including an axial flow impeller 1, a motor 2, a flow guiding and pressurizing device 3, and a protective net 4. The flow guiding and pressurizing device 3 includes an air guide ring 31, a motor mounting base 30 located in the middle of the bottom of the cavity enclosed by the air guide ring 31, and several blades 32 circumferentially spaced and distributed connecting the motor mounting base 30 and the inner wall of the air guide ring 31. The motor 2 is mounted on the motor mounting base 30, and the axial flow impeller 1 is mounted on the motor 2. The air guide ring 31 is cylindrical, and the inner wall of the air guide ring 31 near the air inlet 33 is an arc-shaped guiding surface 311, which makes the air inlet 33 form a flow guiding structure that is larger at the top and smaller at the bottom. The inner wall of the air guide ring 31 near the air outlet 34 forms a diffusion surface 312, which makes the air outlet 34 form a diffusion structure that is smaller at the top and larger at the bottom.

[0030] The principle of improving efficiency in this utility model is as follows: the air guiding and pressurizing device 3 includes an air guide ring 31, a motor mounting base 31, and several blades 32. The air guide ring 31 is cylindrical. The inner wall of the air guide ring 31 near the air inlet 33 is an arc-shaped guiding surface 312, which makes the air inlet 33 form a flow guiding structure that is larger at the top and smaller at the bottom. The inner wall of the air guide ring 31 near the air outlet 34 forms a diffusion surface 312, which makes the air outlet 34 form a diffusion structure that is smaller at the top and larger at the bottom. The entire air handling module achieves a pre-swirl-pressurization-diffusivity flow process during the flow process. With the help of the rear-mounted blades 32, its energy efficiency is greatly improved. After the airflow exits the trailing edge of the axial flow impeller 1, the flow guiding and pressurizing device 3 rotates part of the deflected airflow out of the axial flow impeller 1 back to the axial direction. At the same time, the kinetic energy of the deflected airflow is converted into static pressure energy, thereby overcoming the system resistance and greatly optimizing the inlet and outlet flow field of the axial flow impeller 1. This achieves the effect of improving the efficiency of the air handling module, reducing production and maintenance costs while significantly improving energy efficiency.

[0031] Preferably, the diffusion angle α formed between the diffuser surface 312 and the axis L is an acute angle. The diffusion angle α is in the range of 1 degree to 15 degrees. This design is reasonable and improves energy efficiency.

[0032] The outer diameter of the axial flow impeller 1 is D1, and the outer diameter of the guide ring 31 is D2. The relationship between the two is that D2 / D1 is in the range of 1.01-1.2. The structure is reasonable and compact.

[0033] Preferably, the total height of the axial flow impeller 1 after the flow guiding and pressurizing device 3 is H, and the height of the flow guiding and pressurizing device 3 is H1. The relationship between the two is that H1 / H is in the range of 0.5-0.85. The layout is reasonable, the structure is compact, and it can give full play to the flow guiding and pressurizing effect.

[0034] Preferably, the height of the blade 32 is H3, and the height of the flow guiding and pressurizing device 3 is H1, with the ratio of H3 / H1 ranging from 0.25 to 0.5. This design is reasonable, compact, and effectively utilizes the flow guiding and pressurizing function.

[0035] Preferably, the height of the axial flow impeller 1 protruding from the flow guiding and pressurizing device 3 is H2, and the ratio of H2 to H1 is in the range of 0.4-0.8. This arrangement is reasonable, the structure is compact, and it can fully utilize the flow guiding and pressurizing function.

[0036] Preferably, the height of the diffuser surface 312 is H4, and the ratio of H4 to H1 is in the range of 0.15-0.3. This design is rational, compact, and effectively utilizes the flow guiding and pressurizing functions.

[0037] Preferably, the protective net 4 is installed at the end of the air guide ring 31 by the fixing plate 5, which has a simple structure.

[0038] Preferably, the height of the arc-shaped guide surface 312 is H5, and the ratio of H5 to H4 is in the range of 0.4-0.65.

[0039] Compared to existing air handling modules and fans, the new air handling module provides more concentrated airflow during operation, effectively solving the problem of air conditioning system shutdowns caused by airflow dispersion in high-temperature environments, thus achieving stable and efficient operation of the entire unit. The new solution also features more concentrated airflow that travels further. Furthermore, the new air handling module operates with lower noise levels and avoids rotational scratching issues caused by assembly and process dimension problems.

[0040] The comparative test data between this invention and the prior art are shown in the table below, showing that its maximum static pressure efficiency is improved by more than 5%.

[0041]

[0042] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited thereto. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model are equivalent substitutions and are included within the protection scope of the present utility model.

Claims

1. An air handling module for an energy storage air conditioner, comprising an axial flow impeller (1), a motor (2), a flow guiding and pressurizing device (3), and a protective net (4), wherein the flow guiding and pressurizing device (3) comprises a guide ring (31), a motor mounting base (30) located at the bottom center of the cavity enclosed by the guide ring (31), and a plurality of blades (32) circumferentially spaced and connecting the motor mounting base (30) and the inner wall of the guide ring (31), wherein the motor (2) is mounted on the motor mounting base (30), and the axial flow impeller (1) is fitted onto the motor (2), characterized in that: The air guide ring (31) is cylindrical. The inner wall of the air guide ring (31) near the air inlet (33) is an arc-shaped guiding surface (311), which makes the air inlet (33) form a flow-guiding structure that is larger at the top and smaller at the bottom. The inner wall of the air guide ring (31) near the air outlet (34) forms a diffusion surface (312), which makes the air outlet (34) form a diffusion structure that is smaller at the top and larger at the bottom.

2. The air handling module for an energy storage air conditioner according to claim 1, characterized in that: The diffusion angle α formed between the diffusion surface (312) and the axis L is an acute angle.

3. The air handling module for an energy storage air conditioner according to claim 2, characterized in that: The diffusion angle α is in the range of 1 degree to 15 degrees.

4. An air handling module for an energy storage air conditioner according to claim 1, 2, or 3, characterized in that: The outer diameter of the axial flow impeller (1) is D1, and the outer diameter of the guide ring (31) is D2. The relationship between the two is: D2 / D1 is in the range of 1.01-1.

2.

5. An air handling module for an energy storage air conditioner according to claim 1, 2, or 3, characterized in that: The total height of the axial flow impeller (1) after the flow guiding and pressurizing device (3) is H, and the height of the flow guiding and pressurizing device (3) is H1. The relationship between the two is: H1 / H is in the range of 0.5-0.

85.

6. An air handling module for an energy storage air conditioner according to claim 5, characterized in that: The height of the blade (32) is H3, and the height of the flow guiding and pressurizing device (3) is H1. The relationship between the two is: H3 / H1 is in the range of 0.25-0.

5.

7. An air handling module for an energy storage air conditioner according to claim 6, characterized in that: The height of the axial flow impeller (1) protruding from the flow guiding and pressurizing device (3) is H2, and the ratio of H2 to H1 is in the range of 0.4-0.

8.

8. An air handling module for an energy storage air conditioner according to claim 7, characterized in that: The height of the diffuser (312) is H4, and the ratio of H4 to H1 is in the range of 0.15-0.

3.

9. An air handling module for an energy storage air conditioner according to claim 8, characterized in that: The height of the arc-shaped guide surface (312) is H5, and the ratio of H5 to H4 is in the range of 0.4-0.

65.

10. An air handling module for an energy storage air conditioner according to claim 9, characterized in that: The protective net (4) is installed at the end of the air guide ring (31) via the fixing plate (5).

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