A chimney cycle air intake fan

Abstract

The utility model provides a chimney type circulating air inlet fan relates to livestock ventilation equipment technical field to solve the problem that the use environment temperature interval is not enough subdivision for chimney type air inlet fan in cold area on the market at present stage, including outer tube, the waterproof flange is established in the top of outer tube, the connecting flan is established in the bottom of outer tube, the air inlet flow guide section is established in the top of waterproof flange, the straight section machine shell is established in the bottom of connecting flan, the support is established in the inside of straight section machine shell, is provided with the fixing piece on the support, is provided with electric push rod on the fixing piece, is provided with the guide rail on the fixing piece, electric push rod is connected with the bottom plate, the bottom plate is connected with the guide rail, the small flow guide disc is established in the bottom of bottom plate, the big flow guide disc is established in the bottom of small flow guide disc, the protective net is established in the bottom of big flow guide disc, is provided with motor on the protective net, is provided with fan blade on the output shaft of motor. Through control electric push rod stroke adjustment small flow guide disc and the opening gap between air outlet flow guide section horn mouth, thereby reach the change of fresh air and warm air mixed proportion.

Description

Technical Field

[0001] This utility model belongs to the technical field of livestock ventilation equipment, and more specifically, it relates to a chimney-type circulating air intake fan. Background Technology

[0002] A ventilation fan used to ventilate livestock and poultry houses in cold environments is a special ventilation device installed on the roof of the livestock and poultry house. It draws in cold, fresh air from outside the house when a negative pressure environment is created inside, and guides and accelerates it so that it can be fully mixed with the warm air inside the house before reaching the livestock and poultry activity area.

[0003] For example, application number 201520156959.4 discloses a chimney-type air intake fan, including a main unit base and a duct base. The main unit base and the duct base are connected by an electric actuator, which includes a lifting column and a lifting platform. The main unit base is installed on the lifting platform. The lower part of the main unit base is an indoor duct, and the upper part of the duct base is a duct. The top of the duct is an outdoor air inlet, and a butterfly valve assembly is installed inside the duct. The connection between the main unit base and the duct base is an indoor return air inlet. The bottom of the main unit base is an air outlet. A guide plate is installed at the air outlet. A rain cover is installed at the upper end of the air inlet, and a bird net is installed at the air inlet. A fan is installed inside the indoor duct. This product replaces the preheating device in the original technology, simplifies the structure of the air intake fan, and reduces energy consumption. Furthermore, the flow rate of hot air can be controlled by adjusting the distance between the duct base and the main unit base, and the flow rate of cold air can be controlled by adjusting the butterfly valve assembly in the duct. This convenient operation achieves better hot and cold air mixing. It is equipped with a rain cover and bird net to reduce the impact of the external environment on the air intake fan. A fan is installed in the indoor duct, and the ventilation speed can be adjusted as needed. The airflow is diffused in all directions through the guide vane to ensure uniform ventilation.

[0004] Based on existing technology, it has been found that chimney-type air intake fans currently on the market for use in cold regions have insufficiently defined operating temperature ranges and inadequate ventilation structures, resulting in significant limitations in their application. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a chimney-type circulating air intake fan, which solves the problems of insufficiently detailed operating temperature ranges, imperfect ventilation structures, and significant limitations in the use of chimney-type air intake fans currently available in the market for cold regions.

[0006] This utility model discloses a chimney-type circulating air intake fan, achieved through the following specific technical means: A chimney-type circulating air intake fan includes a circulation module, a flow guiding module, a push rod module, a main unit module, a wind tunnel module, an air intake guiding module, and a rain cap module; The ventilation duct module includes: an outer cylinder, with a waterproof flange at the top and a connecting flange at the bottom; The air inlet guide module includes: an air inlet guide section, which is disposed on the top of the waterproof flange; a rainproof cap bracket is disposed on the top of the air inlet guide section; The rain cap module includes: a bird net, which is installed at the top of the air inlet guide section; a rain cap bracket is installed on the inner side of the bird net; a rain cap is installed at the top of the bird net; and the bottom of the rain cap is connected to the rain cap bracket. The host module includes: a straight section housing, which is disposed at the bottom of the connecting flange; The push rod module includes: a bracket; the bracket is disposed inside the straight section housing; a fixing component is disposed on the bracket; an electric push rod is disposed on the fixing component; a guide rail is disposed on the fixing component; the electric push rod is connected to the base plate; the base plate is connected to the guide rail; The flow guiding module includes: a small flow guiding plate, which is disposed at the bottom of the base plate; and a large flow guiding plate is disposed at the bottom of the small flow guiding plate.

[0007] Furthermore, an inner cylinder is provided inside the outer cylinder; and thermal insulation cotton is provided between the outer cylinder and the inner cylinder.

[0008] Furthermore, the bottom of the straight section housing is provided with an air outlet guide section; the bottom of the air outlet guide section is configured with a funnel-shaped structure.

[0009] Furthermore, a gap is provided between the small guide plate and the large guide plate.

[0010] Furthermore, the circulation module includes: a protective net; The protective net is installed at the bottom of the large guide plate; a motor is installed on the protective net; fan blades are installed on the output shaft of the motor; the fan blades are located inside the protective net.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. In this device, the motor drives the fan blades directly connected to the motor to rotate, causing air to be blown from the motor to the fan blades and then dispersed outwards through the gap between the large and small guide plates. Simultaneously, the negative pressure inside the room forces fresh outdoor air to enter through the rain cap and the opening of the air inlet guide section. This air then passes through the air inlet guide section, the inner cylinder, and the straight section of the casing, finally mixing with warm indoor air at the opening of the air outlet guide section and the small guide plate before being dispersed outwards. During operation, the opening gap between the small guide plate and the flared end of the air outlet guide section can be adjusted by controlling the stroke of the electric push rod. After mixing... The air is distributed to a large area inside the shed through the diversion structure of the guide plate, and the fresh air volume is precisely controlled. The fresh air volume can be controlled to zero, and the temperature is higher than that of the fresh air, avoiding cold stress to the animals caused by cold air directly acting on them. The applicable ambient temperature is between that of the intake fan and the mixed intake fan, making the fan's application range more segmented. It can solve the condensation phenomenon in cold regions, reduce the continuous accumulation of indoor humidity, and reduce heating costs. Each unit is individually controlled by an electric push rod, which makes the airflow layout inside the shed more precise and more practical. Attached Figure Description

[0012] Figure 1 This is a partially sectional three-dimensional structural schematic diagram of this utility model.

[0013] Figure 2 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0014] Figure 3 This is a schematic diagram of the cross-sectional structure of the straight section of the casing of this utility model.

[0015] Figure 4 This utility model is composed of Figure 3 A schematic diagram of the enlarged portion of section A.

[0016] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Outer cylinder; 101. Inner cylinder; 102. Insulation cotton; 2. Waterproof flange; 3. Air inlet guide section; 301. Rain cap bracket; 4. Bird net; 5. Rain cap; 6. Connecting flange; 7. Straight section housing; 8. Bracket; 9. Fixing parts; 10. Electric push rod; 11. Guide rail; 12. Air outlet guide section; 13. Base plate; 14. Small guide plate; 15. Large guide plate; 16. Protective net; 17. Motor; 18. Fan blades. Detailed Implementation

[0017] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0018] Example: As attached Figure 1 To be continued Figure 4 As shown: This utility model provides a chimney-type circulating air intake fan, including a circulation module, a flow guiding module, a push rod module, a main unit module, a wind tunnel module, an air intake guiding module, and a rainproof cap module; The ventilation duct module includes: an outer duct 1, with a waterproof flange 2 at the top of the outer duct 1; and a connecting flange 6 at the bottom of the outer duct 1. The air inlet guide module includes: an air inlet guide section 3, which is located on top of the waterproof flange 2; a rainproof cap bracket 301 is provided on top of the air inlet guide section 3; The rain cap module includes: a bird net 4, which is set at the top of the air inlet guide section 3; a rain cap bracket 301 is set on the inner side of the bird net 4; a rain cap 5 is set on the top of the bird net 4; and the bottom of the rain cap 5 is connected to the rain cap bracket 301. The main unit module includes: a straight section housing 7, which is located at the bottom of the connecting flange 6; The push rod module includes: a bracket 8; the bracket 8 is disposed inside the straight section housing 7; a fixing part 9 is disposed on the bracket 8; an electric push rod 10 is disposed on the fixing part 9; a guide rail 11 is disposed on the fixing part 9; the electric push rod 10 is connected to the base plate 13; the base plate 13 is connected to the guide rail 11. The airflow guiding module includes: a small airflow guiding plate 14, which is located at the bottom of the base plate 13; a large airflow guiding plate 15 is located at the bottom of the small airflow guiding plate 14; the outer cylinder 1 is used to transmit wind power, the bird net 4 is used to prevent birds from entering, and the rain cap 5 can provide rain protection, preventing raindrops from falling directly into the equipment and affecting its operation; the bracket 8 is used to install the fixing component 9, and the base plate 13 is connected to the guide rail 11. The electric push rod 10 extends and retracts, driving the base component 13 to move, causing the guide rail 11 to slide on the fixing component 9. All of the above controls are controlled by the backend and equipped with corresponding control programs, which are common in this field. The technical means are as follows: the small guide plate 14 is moved by the bottom component 13, which changes the opening gap between the small guide plate 14 and the bottom of the air outlet guide section 12, thereby changing the mixing ratio of fresh air and warm air. This allows the incoming fresh air and the warm air from the circulating fan to mix in different proportions, thereby achieving the purpose of regulating the temperature of the mixed air. The rain cap bracket 301 here is used to support the rain cap 5 and is set inside the bird net 4 to prevent the bird net 4 from deforming. The operation of the above electrical components is controlled by the background control device, which is a common control method. It is connected to the external power supply through the line, which is also a conventional circuit wiring method used in daily life.

[0019] Among them, such as Figure 2 As shown, an inner cylinder 101 is provided inside the outer cylinder 1; a heat insulation cotton 102 is provided between the outer cylinder 1 and the inner cylinder 101; the inner cylinder 101 and the heat insulation cotton 102 provided here are used to play an auxiliary heat insulation function.

[0020] Among them, such as Figure 3 As shown, the bottom of the straight section housing 7 is provided with an air outlet guide section 12; the bottom of the air outlet guide section 12 is designed with a flared structure.

[0021] Among them, such as Figure 3 As shown, a gap is provided between the small guide plate 14 and the large guide plate 15.

[0022] Among them, such as Figure 3 As shown, the circulation module includes: a protective net 16; the protective net 16 is located at the bottom of the large guide plate 15; a motor 17 is installed on the protective net 16; a fan blade 18 is installed on the output shaft of the motor 17; the fan blade 18 is located inside the protective net 16; the motor 17 here is used to drive the fan blade 18 through the background control, thereby generating wind power.

[0023] The specific usage and function of this embodiment are as follows: In this invention, through background control, the motor 17 is energized to drive the fan blade 18, which is directly connected to the motor 17, to rotate. This causes air to be blown from the motor 17 to the fan blade 18 and then dispersed outwards from the gap between the large guide plate 15 and the small guide plate 14. Simultaneously, the indoor negative pressure causes fresh outdoor air to enter through the opening of the rain cap 5 and the air inlet guide section 3. Then, it passes through the air inlet guide section 3, the inner cylinder 101, and the straight section of the casing 7, and finally mixes with the indoor warm air at the opening of the air inlet guide section 12 and the small guide plate 14 and disperses outwards. In this system, the opening gap between the small guide plate 14 and the horn of the air outlet guide section 12 can be adjusted by controlling the stroke of the electric push rod 10, thereby changing the mixing ratio of fresh air and warm air. This allows the incoming fresh air to mix with the warm air passing through the circulating fan in different proportions, thus achieving the purpose of regulating the temperature of the mixed air. The mixed air is then distributed to a large area inside the shed through the diversion structure of the guide plate, precisely controlling the fresh air volume and avoiding cold air directly acting on the poultry and livestock, which could cause cold stress in the animals.

Claims

1. A chimney-type circulating air intake fan, characterized in that: It includes a circulation module, a flow guiding module, a push rod module, a main unit module, a wind tunnel module, an air inlet flow guiding module, and a rain cap module; The duct module includes: an outer duct (1), a waterproof flange (2) on the top of the outer duct (1); and a connecting flange (6) on the bottom of the outer duct (1). The air inlet guide module includes: an air inlet guide section (3), which is located on the top of the waterproof flange (2); a rain cap bracket (301) is provided on the top of the air inlet guide section (3). The rain cap module includes: a bird net (4), which is set at the top of the air inlet guide section (3); a rain cap bracket (301) is set on the inner side of the bird net (4); a rain cap (5) is set on the top of the bird net (4); and the bottom of the rain cap (5) is connected to the rain cap bracket (301). The host module includes: a straight section housing (7), which is disposed at the bottom of the connecting flange (6); The push rod module includes: a bracket (8); the bracket (8) is disposed inside the straight section housing (7); a fixing member (9) is disposed on the bracket (8); an electric push rod (10) is disposed on the fixing member (9); a guide rail (11) is disposed on the fixing member (9); the electric push rod (10) is connected to the base plate (13); the base plate (13) is connected to the guide rail (11); The flow guiding module includes: a small flow guiding plate (14), which is set at the bottom of the base plate (13); a large flow guiding plate (15) is set at the bottom of the small flow guiding plate (14).

2. The chimney-type circulating air intake fan according to claim 1, characterized in that: The outer cylinder (1) is provided with an inner cylinder (101); thermal insulation cotton (102) is provided between the outer cylinder (1) and the inner cylinder (101).

3. The chimney-type circulating air intake fan according to claim 1, characterized in that: The bottom of the straight section housing (7) is provided with an air outlet guide section (12); the bottom of the air outlet guide section (12) is configured as a horn-shaped structure.

4. A chimney-type circulating air intake fan according to claim 1, characterized in that: A gap is provided between the small guide plate (14) and the large guide plate (15).

5. A chimney-type circulating air intake fan according to claim 4, characterized in that: The circulation module includes: a protective net (16); The protective net (16) is set at the bottom of the large guide plate (15); a motor (17) is set on the protective net (16); a fan blade (18) is set on the output shaft of the motor (17); the fan blade (18) is located inside the protective net (16).

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