Rotating wheel and rotating wheel type heat exchanger

By using breathable hole design and energy storage partition material in the rotary wheel heat exchanger, combined with flexible sealing and driving device, the structural stability and heat exchange efficiency of the rotary wheel are improved, and efficient gas precooling and humidification effects are achieved.

CN223204776UActive Publication Date: 2025-08-08SHANGHAI NFE ECOLOGY TECH CO LTD
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Patent Information

Application Number
CN202422805353.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-15
Publication Date
2025-08-08
Estimated Expiration
2034-11-15

AI Technical Summary

Technical Problem

The existing rotary wheel heat exchangers have low heat exchange efficiency.

Method used

An inner fixing sleeve, wheel core body and outer fixing sleeve are arranged in sequence from the inside to the outside. Breathable holes are provided on the side walls of the wheel core body, including a cylindrical molecular sieve moisture absorption layer and a cylindrical energy storage partition. The energy storage partition is composed of an inorganic phase change material layer and a thermally conductive metal layer. The flexible sealing brush is used for sealing. The driving device drives the rotor to rotate, and the air blowing device cleans up dust or water.

Benefits of technology

The structural stability and heat exchange efficiency of the rotor are improved, and outdoor fresh air is pre-cooled and humidified in summer, and outdoor fresh air is pre-heated and humidified in winter, which improves airflow flow and heat exchange.

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Abstract

The rotating wheel comprises a rotating shaft, the rotating shaft is sleeved with an annular wheel core, the wheel core comprises an inner fixing sleeve, a wheel core body and an outer fixing sleeve, the inner fixing sleeve, the wheel core body and the outer fixing sleeve are sequentially arranged in a sleeved mode from inside to outside, and a plurality of air holes distributed in the circumferential direction are formed in the side wall of the wheel core body. The wheel core body comprises a plurality of molecular sieve moisture absorption layers which are different in diameter and sequentially arranged in a sleeved mode from inside to outside, the molecular sieve moisture absorption layers are cylindrical, the sections of the molecular sieve moisture absorption layers are corrugated, energy storage interlayers are arranged between the adjacent molecular sieve moisture absorption layers, each energy storage interlayer comprises a cylindrical inorganic phase change material layer, and the inorganic phase change material layers are arranged between the two adjacent molecular sieve moisture absorption layers. The outer surface of the inorganic phase-change material layer is coated with a heat-conducting metal layer; the rotating wheel has the advantages of being good in structural stability and high in heat exchange efficiency.
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Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a rotor and a rotor-type heat exchanger. Background Art

[0002] A rotary heat exchanger consists of a rotor, seal, housing, and power mechanism. Using a honeycomb-shaped rotor as the transfer medium, it absorbs energy from high-temperature gas and releases it into low-temperature gas, achieving energy conversion between gases. The core component of a rotary heat exchanger is a honeycomb-shaped rotor that rotates continuously at a speed of 10-12 rpm. The rotor uses a special aluminum foil as a carrier and is synthesized using high-tech methods with non-toxic, odorless, and environmentally friendly heat-storage and moisture-absorbing materials to create a honeycomb rotor with excellent heat storage and moisture-absorbing properties.

[0003] The heat exchange efficiency of the rotor used in the conventional rotary heat exchanger is low. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a runner, which has the characteristics of good structural stability and high heat exchange efficiency.

[0005] In order to solve the above technical problems, the utility model provides a wheel, including a rotating shaft, on which a ring-shaped wheel core is sleeved, the wheel core including an inner fixed sleeve, a wheel core body, and an outer fixed sleeve which are sequentially sleeved from the inside to the outside, the side wall of the wheel core body is provided with a plurality of circumferentially distributed air holes, the wheel core body includes a plurality of molecular sieve moisture absorption layers with different diameters which are sequentially sleeved from the inside to the outside, the molecular sieve moisture absorption layers are cylindrical and have a corrugated cross-section, an energy storage spacer is provided between adjacent molecular sieve moisture absorption layers, the energy storage spacer includes a cylindrical inorganic phase change material layer, and the outer surface of the inorganic phase change material layer is coated with a heat-conducting metal layer.

[0006] A rotary heat exchanger includes the rotary wheel and a shell, wherein a first vent and a second vent are respectively provided on the left and right end faces of the shell, and a first partition plate and a second partition plate are respectively provided on the left and right ends of the shell, an upper air inlet and a lower air outlet are formed between the upper and lower inner walls of the first vent and the first partition plate respectively, and an upper air outlet and a lower air inlet are formed between the upper and lower inner walls of the second vent and the second partition plate respectively, and the two ends of the rotating shaft are rotatably arranged on the first partition plate and the second partition plate respectively, an air blowing device for cleaning the rotary wheel is provided in the shell, and a driving device for driving the rotary wheel to rotate is provided in the shell; the air blowing device is used to clean dust or water on the rotary wheel to ensure the heat exchange efficiency of the rotary wheel.

[0007] Further preferably, the rotating wheel and the inner side surface of the housing are sealed by a flexible sealing brush; the flexible sealing brush has a low leakage rate and small friction with the rotating wheel, which can effectively increase the service life of the driving device.

[0008] The beneficial effects of the present invention are as follows: during summer operation, the driving device drives the wheel to rotate slowly, the indoor exhaust air enters the shell from the upper air inlet, then flows through the pores on the top of the wheel core and transfers the cold energy to the energy storage layer of the wheel core, the indoor exhaust air finally flows out from the upper air outlet, and the outdoor fresh air enters the shell from the lower air inlet, when the low-temperature part of the wheel core rotates to the bottom of the shell and contacts the outdoor fresh air, the wheel core releases cold energy to the outdoor fresh air and absorbs the moisture contained in the outdoor fresh air through the molecular sieve moisture absorption layer, and the outdoor fresh air flows through the pores at the bottom of the wheel core. Finally, it flows out from the lower air outlet, ultimately achieving the purpose of pre-cooling and dehumidifying the outdoor fresh air; while when operating in winter, the opposite is true, ultimately achieving the purpose of pre-heating and humidifying the outdoor fresh air; since a plurality of circumferentially distributed air holes are provided on the side wall of the wheel core body, the air flow in the pores on the wheel core is better, thereby improving the heat exchange efficiency of the wheel core; the energy storage interlayer is composed of an inorganic phase change material layer and a heat-conducting metal layer, and its heat exchange capacity is greater, further improving the heat exchange efficiency of the wheel core; this new type of wheel has the characteristics of good structural stability and high heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to clearly illustrate the innovative principle of the utility model and its advantages over existing runners, possible embodiments are described below by way of non-limiting examples applying the principle with the aid of the accompanying drawings. In the drawings:

[0010] Figure 1 This is an exploded view of the wheel core body of the utility model;

[0011] Figure 2 is a front view of the wheel core body;

[0012] Figure 3 is a cross-sectional view of the energy storage barrier;

[0013] Figure 4 is a three-dimensional diagram of the rotary heat exchanger;

[0014] Figure 5 It is a cross-sectional view of the rotary heat exchanger. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0016] Based on the embodiments of this invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this invention.

[0017] It should be noted that all directional indications in the present embodiment (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship and movement status of the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0018] In this disclosure, unless otherwise specified or limited, the terms "connect," "fix," etc. should be understood in a broad sense. For example, "fix" can mean fixed connection, detachable connection, or integration; it can mean mechanical connection or electrical connection; it can mean direct connection or indirect connection through an intermediate medium; it can mean internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on specific circumstances. Example

[0019] like Figure 1-3 A wheel comprises a rotating shaft 1, on which a ring-shaped wheel core 2 is sleeved, and the wheel core 2 comprises an inner fixed sleeve 3, a wheel core body 4, and an outer fixed sleeve 5 which are sleeved in sequence from the inside to the outside. A plurality of circumferentially distributed air holes 6 are opened on the side wall of the wheel core body 4, and the wheel core body 4 comprises a plurality of molecular sieve moisture absorption layers 7 with different diameters which are sleeved in sequence from the inside to the outside. The molecular sieve moisture absorption layers 7 are cylindrical and have a corrugated cross-section. An energy storage spacer 8 is provided between adjacent molecular sieve moisture absorption layers 7, and the energy storage spacer 8 comprises a cylindrical inorganic phase change material layer 9. The outer surface of the inorganic phase change material layer 9 is coated with a heat-conducting metal layer 10. Example

[0020] like Figure 4-5, a rotary heat exchanger includes the rotor described in Example 1, and further includes a shell 11, wherein the left and right end surfaces of the shell 11 are respectively provided with a first ventilation port 12 and a second ventilation port 13, and the left and right ends of the shell 11 are respectively provided with a first partition plate 14 and a second partition plate 15, and the upper and lower side inner walls of the first ventilation port 12 are respectively connected to the first partition plate 14 to form an upper air inlet 16 and a lower air outlet 17, and the upper and lower side inner walls of the second ventilation port 13 are respectively connected to the second partition plate 15 to form an upper air outlet 18 and a lower air inlet 19, and the two ends of the rotating shaft 1 are respectively rotatably arranged on the first partition plate 14 and the second partition plate 15, and the shell 11 is provided with a blowing device for cleaning the rotor, and the shell 11 is provided with a driving device for driving the rotor to rotate; the blowing device is used to clean dust or water on the rotor to ensure the heat exchange efficiency of the rotor.

[0021] Preferably, the rotating wheel and the inner side surface of the housing 11 are sealed by a flexible sealing brush 20; the flexible sealing brush 20 has a low leakage rate and small friction with the rotating wheel, which can effectively increase the service life of the driving device.

[0022] During summer operation, the drive device drives the wheel to rotate slowly, and the indoor exhaust air enters the shell 11 from the upper air inlet 16, then flows through the pores on the top of the wheel core 2 and transfers the cold energy to the energy storage layer 8 of the wheel core 2. The indoor exhaust air finally flows out from the upper air outlet 18, while the outdoor fresh air enters the shell 11 from the lower air inlet 19. When the low-temperature part of the wheel core 2 rotates to the bottom of the shell 11, it contacts the outdoor fresh air. The wheel core 2 releases cold energy to the outdoor fresh air and absorbs the moisture contained in the outdoor fresh air through the molecular sieve moisture absorption layer 7. The outdoor fresh air flows through the pores at the bottom of the wheel core 2 and finally It flows out from the lower air outlet 17, ultimately achieving the purpose of pre-cooling and dehumidifying the outdoor fresh air; while during winter operation, the opposite is true, ultimately achieving the purpose of pre-heating and humidifying the outdoor fresh air; since a plurality of circumferentially distributed air holes 6 are provided on the side wall of the wheel core body 4, the air flow in the pores on the wheel core 2 is better, thereby improving the heat exchange efficiency of the wheel core 2; the energy storage barrier 8 is composed of an inorganic phase change material layer 9 and a heat-conducting metal layer 10, and its heat exchange capacity is greater, further improving the heat exchange efficiency of the wheel core 2; the wheel of this embodiment has the characteristics of good structural stability and high heat exchange efficiency.

[0023] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A rotating wheel, characterized in that: The invention comprises a rotating shaft (1), wherein a ring-shaped wheel core (2) is sleeved on the rotating shaft (1), wherein the wheel core (2) comprises an inner fixed sleeve (3), a wheel core body (4), and an outer fixed sleeve (5) which are sleeved in sequence from the inside to the outside, wherein a plurality of circumferentially distributed air holes (6) are provided on the side wall of the wheel core body (4), wherein the wheel core body (4) comprises a plurality of molecular sieve hygroscopic layers (7) of different diameters which are sleeved in sequence from the inside to the outside, wherein the molecular sieve hygroscopic layers (7) are cylindrical and have a corrugated cross-section, and an energy storage spacer (8) is provided between adjacent molecular sieve hygroscopic layers (7), wherein the energy storage spacer (8) comprises a cylindrical inorganic phase change material layer (9), wherein the outer surface of the inorganic phase change material layer (9) is coated with a heat conductive metal layer (10).

2. A rotary heat exchanger, characterized in that: The invention comprises the wheel according to claim 1, and further comprises a shell (11), wherein a first vent (12) and a second vent (13) are respectively provided on the left and right end faces of the shell (11), a first partition plate (14) and a second partition plate (15) are respectively provided on the left and right ends of the shell (11), an upper air inlet (16) and a lower air outlet (17) are formed between the upper and lower inner walls of the first vent (12) and the first partition plate (14), an upper air outlet (18) and a lower air inlet (19) are respectively formed between the upper and lower inner walls of the second vent (13) and the second partition plate (15), two ends of the rotating shaft (1) are respectively rotatably arranged on the first partition plate (14) and the second partition plate (15), an air blowing device for cleaning the wheel is provided in the shell (11), and a driving device for driving the wheel to rotate is provided in the shell (11).

3. The rotary heat exchanger according to claim 2, characterized in that: The rotating wheel and the inner side surface of the housing (11) are sealed by a flexible sealing brush (20).