Heat recovery device for fresh air ventilator

Abstract

The utility model relates to the technical field of heat recovery devices, in particular to a heat recovery device for a fresh air ventilator, which comprises a heat exchange box, an air inlet pipe, an air outlet pipe and an air exhaust pipe are respectively arranged on the heat exchange box, air exhaust holes are uniformly distributed on the side edge of the heat exchange box, a mounting plate is fixedly mounted in the heat exchange box, and the air exhaust holes are communicated with the mounting plate. Uniformly distributed heat exchange sheets are fixedly mounted on the mounting plate, a sleeve is fixedly mounted on the inner wall of the heat exchange box, uniformly distributed air inlet holes are formed in the end part of the sleeve, a thin pipe communicated with the air inlet pipe is fixedly mounted at the end part of the air inlet pipe, the end part of the thin pipe is communicated with the side edge of the top of the sleeve, and a cross rod is rotationally arranged in the heat exchange box; according to the heat recovery device for the fresh air ventilator, more sufficient heat exchange is promoted by reducing the exhaust air speed and scattering the exhaust air, the heat exchange efficiency between fresh air and exhaust air is remarkably improved, the energy cyclic utilization rate is effectively increased, and practicability is high.

Description

TECHNICAL FIELD

[0001] The utility model belongs to heat recovery device technical field especially relates to a heat recovery device for fresh air ventilator. BACKGROUND

[0002] Fresh air ventilator is a kind of mechanical equipment for prompting indoor and outdoor air exchange, can effectively improve indoor air quality, guarantee indoor air fresh, and heat recovery device is an important component in fresh air ventilator, it can recover the heat, humidity and other energy contained in exhaust air during ventilation, to pre-treat the introduced fresh air, improve energy utilization, complement each other, play an important role in optimizing indoor air environment and energy saving.

[0003] In the prior art heat recovery device for fresh air ventilator, when heat exchanging, the flow rate of hot steam is fast when discharging to exhaust port, and the residence time is short, so that a large amount of heat energy is discharged without sufficient heat exchange, which limits the improvement of heat exchange efficiency and the effective recovery and utilization of energy, and needs to be improved, therefore, a heat recovery device for fresh air ventilator is provided. UTILITY MODEL CONTENTS

[0004] The utility model discloses a heat recovery device for fresh air ventilator to solve the problems in the background art.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme: a heat recovery device for fresh air ventilator, including heat exchange box, the heat exchange box is provided with air inlet pipe, air outlet pipe and exhaust pipe respectively, the heat exchange box side is provided with the exhaust hole that evenly distributes, the heat exchange box is fixedly installed with mounting plate in, the mounting plate is fixedly installed with the heat exchange sheet that evenly distributes on, the heat exchange box inner wall is fixedly installed with sleeve, the sleeve end is provided with the air inlet hole that evenly distributes, the air inlet pipe end is fixedly installed with the fine tube that is connected with it, the fine tube end and sleeve top side edge are linked together, the heat exchange box is rotationally arranged with cross bar, the cross bar rotationally arranged on sleeve and mounting plate, the sleeve is provided with the drive blade that evenly distributes, the drive blade all is fixedly installed with cross bar end, the cross bar is fixedly installed with the rotating blade that evenly distributes on.

[0006] As a further description of the above scheme: by slowing down the exhaust air speed and dispersing it to promote more complete heat exchange, the heat exchange efficiency between fresh air and exhaust air is significantly improved, the energy recycling rate is effectively enhanced, and the practicability is strong.

[0007] Preferably, the exhaust hole is provided with a valve.

[0008] Further, the air outlet holes are provided with valves, so as to slow down the exhaust of hot air and improve the heat exchange effect.

[0009] Preferably, the mounting plate is provided in L shape.

[0010] Further, the mounting plate is provided in L shape, so as to prolong the air outlet path of fresh air on the heat exchange sheet and further improve the heat exchange effect of fresh air.

[0011] Preferably, the driving blades are provided with uniformly distributed through holes.

[0012] Further, the driving blades are provided with uniformly distributed through holes, so as to reduce the resistance when the rotating blades rotate and improve the dispersion effect of exhaust air.

[0013] Preferably, the driving blades in the sleeve are provided with at least eight groups of uniformly distributed through holes.

[0014] Further, the stability of fresh air driving the driving blades can be improved.

[0015] Preferably, the cross rod, the driving blades and the rotating blades are all provided in plastic material.

[0016] Further, the plastic material is light, so as to further improve the stability of the cross rod and the rotating blades when rotating.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows: the exhaust air speed is slowed down and dispersed to promote more sufficient heat exchange, the heat exchange efficiency between fresh air and exhaust air is significantly improved, the energy recycling rate is effectively enhanced, and the utility model has high practicability. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a perspective view of the utility model;

[0019] Figure 2 is a side view of the utility model;

[0020] Figure 3 is a structure view of the mounting plate, the heat exchange sheet, the sleeve and the rotating blades of the utility model;

[0021] Figure 4 is a structure view of the thin tube, the sleeve, the cross rod and the rotating blades of the utility model;

[0022] Figure 5 is an internal structure view of the sleeve of the utility model.

[0023] Legend:

[0024] 1, heat exchange box; 2, air inlet pipe; 3, air outlet pipe; 4, exhaust pipe; 5, exhaust hole; 6, mounting plate; 7, heat exchange sheet; 8, sleeve; 9, air inlet hole; 10, thin tube; 11, cross rod; 12, driving blade; 13, rotating blade; 14, valve; 15, through hole. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] Please refer to Figures 1-5 The present application provides a technical solution:

[0027] A heat recovery device for a fresh air ventilator, comprising a heat exchange box 1, the heat exchange box 1 is respectively provided with an air inlet pipe 2, an air outlet pipe 3 and an exhaust pipe 4, the side edge of the heat exchange box 1 is provided with uniformly distributed exhaust holes 5, the heat exchange box 1 is fixedly installed with a mounting plate 6, the mounting plate 6 is fixedly installed with uniformly distributed heat exchange sheets 7, the inner wall of the heat exchange box 1 is fixedly installed with a sleeve 8, the end of the sleeve 8 is provided with uniformly distributed air inlet holes 9, the end of the air inlet pipe 2 is fixedly installed with a thin tube 10 which is in communication therewith, the end of the thin tube 10 is in communication with the top side edge of the sleeve 8, the heat exchange box 1 is rotatably provided with a cross rod 11, the cross rod 11 is rotatably arranged on the sleeve 8 and the mounting plate 6, the sleeve 8 is provided with uniformly distributed driving blades 12, the driving blades 12 are fixedly installed at the end of the cross rod 11, and the cross rod 11 is fixedly installed with uniformly distributed rotating blades 13.

[0028] In the heat recovery device for a fresh air ventilator, the air inlet pipe 2 is used to introduce fresh air into the room, the air outlet pipe 3 is used to discharge fresh air into the room, the exhaust pipe 4 is used to discharge old air with temperature in the room into the heat exchange box 1, the uniformly distributed heat exchange sheets 7 on the mounting plate 6 are used to exchange heat in the old air, and the exhaust holes 5 are used to slowly discharge the old air after heat exchange out of the heat exchange box 1.

[0029] In use, the fresh air enters the inlet pipe 2, flows along the communication pipe 10, enters the sleeve 8 through the communication between the communication pipe 10 and the top side of the sleeve 8, and then enters the heat exchange box through the inlet hole 9. Since the sleeve 8 is provided with uniformly distributed driving blades 12, when the fresh air flows through the sleeve 8, the airflow impacts the driving blades 12, and the driving blades 12 are driven to rotate the cross rod 11 by the power provided by the wind. The uniformly distributed rotating blades 13 fixedly installed on the cross rod 11 also rotate synchronously. The rotation of the rotating blades 13 disperses the indoor old air with temperature discharged from the exhaust pipe 4 into the heat exchange box 1, and the dispersed old air with temperature is in full contact with the heat exchange fins 7 in the heat exchange box 1 for heat exchange. The fresh air exchanges heat through the other side of the heat exchange fins 7.

[0030] The heat recovery device of the fresh air ventilator can slow down the exhaust air speed and disperse the exhaust air to promote more sufficient heat exchange, significantly improve the heat exchange efficiency between the fresh air and the exhaust air, effectively enhance the energy recycling rate, and have high practicality.

[0031] The exhaust hole 5 is provided with a valve 14;

[0032] The valve 14 of the exhaust hole 5 is like a small one-way valve. When the old air is discharged, the valve 14 will generate a certain resistance to limit the flow rate of the air, forcing the hot air to slowly pass through the valve 14. The slow discharge process prolongs the residence time of the old air in the heat exchange box 1, so that the old air can continue to exchange heat with the heat exchange fins 7 and the surrounding air, maximally transfer the heat carried, and further improve the heat exchange effect.

[0033] The mounting plate 6 is provided in an L shape;

[0034] The mounting plate 6 is provided in an L shape, so that the fresh air no longer directly passes through the heat exchange box 1, but travels along the path of the L-shaped mounting plate 6. The air outlet path of the fresh air on the heat exchange fins 7 is lengthened, the contact time of the fresh air with the heat exchange fins 7 is increased, the fresh air can fully absorb the heat of the heat exchange fins 7, and the heat exchange effect is further improved.

[0035] The driving blades 12 are provided with uniformly distributed through holes 15;

[0036] The driving blades 12 are provided with uniformly distributed through holes 15, which can reduce the resistance when the rotating blades 13 rotate and improve the dispersion effect of the exhaust air.

[0037] The driving blades 12 in the sleeve 8 are provided with at least eight groups of uniformly distributed driving blades;

[0038] The driving blades 12 in the sleeve 8 are provided with at least eight groups of uniformly distributed driving blades, which can improve the stability of the fresh air driving the driving blades 12.

[0039] The horizontal rod 11, the driving blade 12 and the rotating blade 13 are made of plastic;

[0040] The plastic material is light, which can further improve the stability of the horizontal rod 11 and the rotating blade 13 during rotation.

[0041] Working principle:

[0042] In the heat recovery device of the fresh air ventilator, the air inlet pipe 2 is used to introduce fresh air into the room, the air outlet pipe 3 is used to discharge the fresh air into the room, the air outlet pipe 4 is used to discharge the old air with temperature in the room into the heat exchange box 1, and the heat exchange fins 7 evenly distributed on the mounting plate 6 are used to exchange heat with the heat in the old air. The air outlet hole 5 is used to slowly discharge the old air after heat exchange from the heat exchange box 1.

[0043] In use, the fresh air enters the air inlet pipe 2, flows along the communication pipe 10, enters the sleeve 8 through the communication between the communication pipe 10 and the top side of the sleeve 8, and then enters the heat exchange box through the air inlet hole 9. Since the sleeve 8 is provided with evenly distributed driving blades 12, the airflow impacts the driving blades 12 when the fresh air flows through the sleeve 8, and the driving blades 12 are driven to rotate by the power provided by the wind force. The evenly distributed rotating blades 13 fixedly installed on the horizontal rod 11 are also synchronously rotated, and the rotation of the rotating blades 13 disperses the old air with temperature discharged from the air outlet pipe 4 into the heat exchange box 1. After the old air with temperature is dispersed, it is in full contact with the heat exchange fins 7 in the heat exchange box 1 for heat exchange, and the fresh air exchanges heat through the other side of the heat exchange fins 7.

[0044] The heat recovery device of the fresh air ventilator can slow down the air outlet speed and disperse the air outlet to promote more sufficient heat exchange, significantly improve the heat exchange efficiency between the fresh air and the air outlet, effectively enhance the energy recycling rate, and has high practicality.

[0045] The valve 14 of the air outlet hole 5 is like a small one-way valve. When the old air is discharged, the valve 14 will produce a certain resistance to limit the flow rate of the air, forcing the hot air to slowly pass through the valve 14. The slow discharge process prolongs the residence time of the old air in the heat exchange box 1, so that it can continue to exchange heat with the heat exchange fins 7 and the surrounding air, maximize the heat transfer, and further improve the heat exchange effect.

[0046] The mounting plate 6 is provided in an L shape, so that the fresh air no longer passes through the heat exchange box 1 directly, but travels along the path of the L-shaped mounting plate 6, so that the air outlet path of the fresh air on the heat exchange fins 7 is lengthened, the contact time of the fresh air with the heat exchange fins 7 is increased, and the fresh air can fully absorb the heat of the heat exchange fins 7, further improving the heat exchange effect.

[0047] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A heat recovery device for a fresh air ventilator, comprising a heat exchange box (1), characterized in that, The heat exchange box (1) is respectively provided with an air inlet pipe (2), an air outlet pipe (3) and an air exhaust pipe (4), the side of the heat exchange box (1) is provided with uniformly distributed air exhaust holes (5), the heat exchange box (1) is fixedly provided with a mounting plate (6) inside, the mounting plate (6) is fixedly provided with uniformly distributed heat exchange fins (7), the heat exchange box (1) is fixedly provided with a sleeve (8) on the inner wall, the sleeve (8) is provided with uniformly distributed air inlet holes (9) at the end, the end of the air inlet pipe (2) is fixedly provided with a thin pipe (10) in communication therewith, the end of the thin pipe (10) is in communication with the top side of the sleeve (8), the heat exchange box (1) is rotatably provided with a horizontal rod (11), the horizontal rod (11) is rotatably provided on the sleeve (8) and the mounting plate (6), the sleeve (8) is provided with uniformly distributed driving blades (12), the driving blades (12) are fixedly provided at the end of the horizontal rod (11), and the horizontal rod (11) is fixedly provided with uniformly distributed rotating blades (13).

2. The heat recovery device for a fresh air ventilator according to claim 1, characterized in that, The air exhaust holes (5) are all provided with valves (14).

3. The heat recovery device for a fresh air ventilator according to claim 1, characterized in that, The mounting plate (6) is provided in an L shape.

4. The heat recovery device for a fresh air ventilator according to claim 1, characterized in that, The driving blades (12) are all provided with uniformly distributed through holes (15).

5. The heat recovery device for a fresh air ventilator according to claim 1, characterized in that, The driving blades (12) in the sleeve (8) are provided with at least eight groups of uniformly distributed through holes.

6. The heat recovery device for a fresh air ventilator according to claim 1, characterized in that, The horizontal rod (11), the driving blades (12) and the rotating blades (13) are all made of plastic.

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