A dry air cooler

Abstract

The present invention relates to the technical field of air coolers, and discloses a dry air cooler, including a vortex medium cooling mechanism and a centrifugal air pressure driving mechanism. The dry air cooler is arranged outside the motor, so as to prevent the occurrence of poor cooling effect of the equipment due to the heat emitted by the motor. At the same time, the device makes the filter hole and the axial gas flow cavity of the equipment present an oblique angle setting, so as to reduce the overlapping area of ​​the force between the filter hole and the filtered debris without affecting the normal flow of the cooling gas, and under the action of centrifugal force, the blocked debris is thrown out, so as to ensure the normal flow rate of the cooling gas, so as to prevent the occurrence of poor cooling effect caused by the decrease of the cooling gas flow rate.

Description

Technical Field

[0001] The invention relates to the technical field of air coolers, in particular to a dry air cooler. Background Art

[0002] Air cooler is the abbreviation of air cooler. It is the most widely used heat exchange equipment for condensation and cooling in petrochemical and oil and gas processing production. Air cooler is generally composed of main parts such as tube bundle, tube box, fan, shutter and frame. Air cooler uses ambient air as cooling medium, sweeping across the outside of finned tubes to cool or condense the high-temperature process fluid in the tubes. It is referred to as "air cooler" or "air-cooled heat exchanger".

[0003] For example, the Chinese patent with the publication number "CN219265056U" announced "a kind of high-efficiency dry air cooler", whose main structure includes a frame, and support plates are connected to both sides of the upper end of the frame, and the upper ends of the two support plates are connected to a processing box. The high-efficiency dry air cooler can filter the gas entering the processing box conveniently through the cooperation of the inlet pipe, the outlet pipe, the first mounting plate, the filter plate, the second mounting plate, the connecting pipe and the filter screen, and prevent the impurities in the gas from entering the processing box, and it is convenient to clean the filter plate and the filter screen, better protect the cooling pipe, and prevent impurities from adhering to the outside of the cooling pipe; through the cooperation of the hydraulic cylinder, the slide plate, the support block and the universal wheel, it is convenient to drive the air cooler to move, and the support block can support the frame during operation to prevent the air cooler from moving during operation, thereby increasing the convenience of the air cooler.

[0004] However, the above-mentioned high-efficiency dry air cooler installs the motor used as the power source inside the cavity used for cooling the pipe. The motor itself will emit a large amount of heat when working, which will seriously affect its cooling effect on the cooled medium. At the same time, the filter holes in the filter net used for filtering effect are arranged along the axial direction of the cavity. This arrangement will cause debris to directly clog the air inlet port of the filter hole under gas pressure, which will further reduce the cooling effect of the equipment. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a dry air cooler, which is arranged outside the motor to prevent the occurrence of poor cooling effect of the equipment due to the heat dissipated by the motor. At the same time, the device makes the filter hole and the axial gas flow cavity of the equipment present an oblique angle setting, thereby reducing the overlapping area of ​​the force between the filter hole and the filtered debris without affecting the normal flow of the cooling gas, and under the action of centrifugal force, the blocked debris is thrown out, thereby ensuring the normal flow rate of the cooling gas, preventing the occurrence of poor cooling effect due to a decrease in the flow rate of the cooling gas, and solving the above-mentioned technical problems.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a dry air cooler, comprising a horizontal air cooling kettle with an axial gas flow cavity arranged inside, an exhaust channel body integrally arranged at one end of the horizontal air cooling kettle, an intake channel body integrally arranged at the other end of the horizontal air cooling kettle, a fixed base fixedly installed on the periphery of the exhaust channel body and having a fixed support effect, an exhaust cavity arranged inside the exhaust channel body and connected to the axial gas flow cavity, an intake cavity arranged inside the intake channel body and connected to the axial gas flow cavity, a pipe through-hole arranged on the circumferential surface of the horizontal air cooling kettle and connected to the axial gas flow cavity, a belt through-hole arranged on the circumferential surface of the intake channel body and connected to the intake cavity, a fixed base fixedly installed through a motor fixing sleeve A driving motor installed just above the air inlet channel body and a main pulley fixedly installed at the end of the driving motor rotor also include a vortex medium cooling mechanism, which is internally provided with a vortex medium flow duct installed in the axial gas flow cavity and capable of allowing the medium to flow in a vortex stroke, and a vortex air inlet located on one side of the air inlet direction of the vortex medium flow duct and capable of allowing high-speed flowing gas to be concentratedly blown toward the vortex medium flow duct; and a centrifugal air pressure driving mechanism, which is internally provided with a fan blade located in the air inlet cavity and capable of allowing external gas to enter the axial gas flow cavity from the air inlet cavity when rotating, and a conical filter cover rotatably installed at the air inlet port of the air inlet channel body and capable of filtering debris.

[0007] Preferably, the vortex medium cooling mechanism includes a No. 1 fixed ring body and a vortex medium flow pipe, the No. 1 fixed ring body is fixedly installed inside the axial gas flow cavity, the center of the No. 1 fixed ring body is provided with a wind shield plate with an integral structure therewith, the plate body of the wind shield plate is provided with a vortex air inlet connected to its two end surfaces, the axial gas flow cavity is provided with a vortex medium flow pipe on one side of the wind shield plate, the interior of the vortex medium flow pipe is provided with a vortex medium flow hole, the center end of the vortex medium flow pipe is provided with a No. 1 medium flow pipe with an integral structure therewith and passing through the pipe perforation, the No. 1 medium flow pipe is connected to the center port of the vortex medium flow hole, the edge end of the vortex medium flow pipe is provided with a No. 2 medium flow pipe with an integral structure therewith and passing through the pipe perforation, the No. 2 medium flow pipe is connected to the edge port of the vortex medium flow hole.

[0008] Preferably, both planar ends of the wind shield are perpendicular to the axis of the axial gas flow cavity.

[0009] Preferably, the vortex air inlet and the vortex medium flow hole are symmetrically arranged.

[0010] Preferably, the diameter of the vortex air inlet at the end facing the vortex medium flow hole is smaller than the diameter of the end facing away from the vortex medium flow hole.

[0011] Preferably, the centrifugal pneumatic drive mechanism includes a No. 2 fixed ring body fixedly mounted inside the air intake cavity, the center of the No. 2 fixed ring body is provided with an axle body mounting hole, the No. 2 fixed ring body is provided with a gas flow port for gas flow in the area between its outer circumferential surface and inner circumferential surface, the No. 2 fixed ring body is provided with a rotatable central rotating shaft through a bearing inside the axle body mounting hole, a plurality of fan blades are fixedly mounted on the axle body of the central rotating shaft, a secondary pulley is fixedly mounted on the axle body of the central rotating shaft, the secondary pulley and the main pulley are linked by a belt passing through the belt through the belt through hole, one end of the central rotating shaft extends to one end outside the air intake cavity, one end of the central rotating shaft is fixedly mounted with a conical filter cover, a conical gas flow cavity is provided inside the conical filter cover, one end of the conical gas flow cavity is provided with an annular groove stuck on the periphery of the end of the air intake channel body, and a filter hole is provided at the conical surface of the conical filter cover.

[0012] Preferably, when the fan blades rotate with the rotor of the driving motor, the direction of gas flow caused by them is from the air inlet cavity toward the axial gas flow cavity.

[0013] Preferably, the angle between the axis of the filter hole and the axis of the central rotation axis is an acute angle.

[0014] Preferably, the central rotating shaft is provided with a tip structure for reducing gas flow at one end located inside the axial gas flow cavity.

[0015] Preferably, the axis centerline of the central rotating shaft and the axis centerline of the air intake cavity are colinearly arranged.

[0016] Compared with the prior art, the present invention provides a dry air cooler, which has the following beneficial effects:

[0017] The motor is arranged outside to prevent the occurrence of poor cooling effect of the equipment due to the heat emitted by the motor. At the same time, the device makes the filter hole and the axial gas flow cavity of the equipment present an oblique angle setting, thereby reducing the overlapping area of ​​the force between the filter hole and the filtered debris without affecting the normal flow of the cooling gas, and under the action of centrifugal force, the blocked debris is thrown out, thereby ensuring the normal flow rate of the cooling gas, so as to prevent the occurrence of poor cooling effect due to a decrease in the flow rate of the cooling gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A perspective view of the present invention;

[0019] Figure 2 is a three-dimensional cross-sectional view of the present invention;

[0020] Figure 3 It is a three-dimensional diagram of the horizontal air-cooling kettle in the present invention;

[0021] Figure 4 It is a three-dimensional diagram of the vortex medium cooling mechanism in the present invention;

[0022] Figure 5 It is a three-dimensional cross-sectional view of the vortex medium cooling mechanism in the present invention;

[0023] Figure 6 is a cross-sectional view of the windshield of the present invention;

[0024] Figure 7 It is a three-dimensional cross-sectional view of the centrifugal air pressure drive mechanism of the present invention.

[0025] Among them: 1. Horizontal air-cooled kettle; 2. Fixed base; 3. Axial gas flow cavity; 4. Exhaust channel body; 5. Intake channel body; 6. Exhaust cavity; 7. Intake cavity; 8. Pipe perforation; 9. Belt perforation; 10. Motor fixing sleeve; 11. Driving motor; 12. Main pulley; 13. Belt; 14. Vortex medium cooling mechanism; 141. No. 1 fixed ring body; 142. Wind shield; 143. Vortex air inlet; 144. Vortex medium Flow duct; 145, medium flow duct No. 1; 146, medium flow duct No. 2; 147, vortex medium flow hole; 15, centrifugal pneumatic drive mechanism; 151, fixed ring body No. 2; 152, gas flow port; 153, shaft mounting hole; 154, central rotating shaft; 155, fan blade; 156, secondary pulley; 157, conical filter cover; 158, conical gas flow cavity; 159, annular groove; 1510, filter hole. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1 , Figure 2 and Figure 3A dry air cooler comprises a horizontal air cooling kettle 1 with an axial gas flow cavity 3 arranged inside, an exhaust channel body 4 integrally arranged at one end of the horizontal air cooling kettle 1, an intake channel body 5 integrally arranged at the other end of the horizontal air cooling kettle 1, a fixed base 2 fixedly installed on the periphery of the exhaust channel body 4 and having a fixed support effect, an exhaust cavity 6 arranged inside the exhaust channel body 4 and connected to the axial gas flow cavity 3, an intake cavity 7 arranged inside the intake channel body 5 and connected to the axial gas flow cavity 3, and an exhaust channel body 4 integrally arranged at one end of the horizontal air cooling kettle 1. The pipe through hole 8 on the circumferential surface of the cold kettle 1 and connected to the axial gas flow cavity 3, the belt through hole 9 arranged on the circumferential surface of the air intake channel body 5 and connected to the air intake cavity 7, the drive motor 11 fixedly installed directly above the air intake channel body 5 through the motor fixing sleeve 10, and the main pulley 12 fixedly installed on the rotor end of the drive motor 11. First, the No. 1 medium flow pipeline 145 and the No. 2 medium flow pipeline 146 are connected to the pipeline loop for providing the cooled medium, and then the fixed base 2 is fixedly installed in the working area.

[0028] For efficient cooling of the flowing medium, please refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 , it is necessary to set up a vortex medium cooling mechanism 14, which is provided with a vortex medium flow pipe 144 installed in the axial gas flow chamber 3 and capable of making the medium flow in a vortex stroke, and a vortex air inlet 143 located on one side of the air inlet direction of the vortex medium flow pipe 144 and capable of making the high-speed flowing gas blow to the vortex medium flow pipe 144. After the medium flows into the vortex medium flow hole 147, due to the structural shape of the vortex medium flow pipe 144, the stroke of the medium flow can be increased in one plane, thereby increasing the refrigeration and cooling effect on the medium per unit area. At the same time, After the flowing gas passes through the vortex air inlet 143, since the two planar ends of the wind shield 142 are perpendicular to the axial center line of the axial gas flow chamber 3, the vortex air inlet 143 and the vortex medium flow hole 147 are symmetrically arranged, and the diameter of the vortex air inlet 143 at the end facing the vortex medium flow hole 147 is smaller than the diameter of the end away from the vortex medium flow hole 147, which will increase the speed of gas flow and reduce the temperature of the gas at the same time. The gas will be blown directly to the vortex medium flow pipe 144, thereby achieving high-efficiency refrigeration and cooling of the flowing medium.

[0029] For the specific structure of the vortex medium cooling mechanism 14, please refer to Figure 4 , Figure 5 and Figure 6, including a No. 1 fixed ring body 141 and a vortex medium flow pipe 144, the No. 1 fixed ring body 141 is fixedly installed inside the axial gas flow chamber 3, the center of the No. 1 fixed ring body 141 is provided with a wind shield plate 142 with an integrated structure therewith, the plate body of the wind shield plate 142 is provided with a vortex air inlet 143 connected to its two end surfaces, the axial gas flow chamber 3 is provided with a vortex medium flow pipe 144 on one side of the wind shield plate 142, and the interior of the vortex medium flow pipe 144 is provided with a A vortex medium flow hole 147 is provided, and a No. 1 medium flow pipe 145 which is an integral structure with the vortex medium flow pipe 144 and passes through the pipe perforation 8 is provided at the center end of the vortex medium flow pipe 144, and the No. 1 medium flow pipe 145 is connected to the center port of the vortex medium flow hole 147, and a No. 2 medium flow pipe 146 which is an integral structure with the vortex medium flow pipe 144 and passes through the pipe perforation 8 is provided at the edge end of the vortex medium flow pipe 144, and the No. 2 medium flow pipe 146 is connected to the edge port of the vortex medium flow hole 147.

[0030] In order to achieve the drive of cooling gas based on the centrifugal filtration of impurities, please refer to Figure 1 , Figure 2 and Figure 7 , it is necessary to set up a centrifugal air pressure drive mechanism 15, which is provided with a fan blade 155 located inside the air intake cavity 7 and which, when rotating, can allow external gas to enter the axial gas flow cavity 3 from the air intake cavity 7, and a conical filter cover 157 rotatably installed at the air intake port of the air intake channel body 5 and capable of filtering debris. When the drive motor 11 is started, the main pulley 12 will drive the central rotating shaft 154 to rotate through the belt 13. When the fan blade 155 rotates with the rotor of the drive motor 11, the gas flow direction caused by it is from the air intake cavity 7 to the axial gas flow cavity 3, which will allow the surrounding gas to have external air enter the air intake cavity 7 and then flow to the axial gas flow cavity 3. When the gas passes through the filter hole 1510, the debris mixed in the gas will be blocked at the air intake port of the filter hole 1510. At the same time, the high-speed rotating conical filter cover 157 will cause the debris to rotate, and the debris will generate centrifugal force, so that it will be thrown to the surroundings, thereby realizing the driving of the cooling gas on the basis of centrifugal filtration of the debris.

[0031] For the specific structure of the centrifugal air pressure drive mechanism 15, please refer to Figure 7, including a No. 2 fixed ring body 151 fixedly mounted inside the air intake cavity 7, a shaft mounting hole 153 is provided at the center of the No. 2 fixed ring body 151, a gas flow port 152 for gas flow is provided in the area between the outer circumference and the inner circumference of the No. 2 fixed ring body 151, a central rotating shaft 154 capable of rotating is installed in the interior of the shaft mounting hole 153 of the No. 2 fixed ring body 151 through a bearing, the axis of the central rotating shaft 154 is colinear with the axis of the air intake cavity 7, a tip structure for reducing gas flow is provided at one end of the central rotating shaft 154 located inside the axial gas flow cavity 3, a plurality of fan blades 155 are fixedly mounted on the axis of the central rotating shaft 154, A secondary pulley 156 is fixedly mounted on the shaft body, and the secondary pulley 156 and the main pulley 12 are linked via a belt 13 that passes through the belt through hole 9. One end of the central rotating shaft 154 extends to one end outside the air intake cavity 7, and a conical filter cover 157 is fixedly mounted on one end of the central rotating shaft 154. A conical gas flow chamber 158 is arranged inside the conical filter cover 157, and an annular groove 159 that is clamped on the periphery of the end of the air intake channel body 5 is arranged at one end of the conical gas flow chamber 158. A filter hole 1510 is arranged on the conical surface of the conical filter cover 157. In order to reduce the axial overlap area between the filter hole 1510 and the flowing gas, it is necessary to make the angle between the axis line of the filter hole 1510 and the axis line of the central rotating shaft 154 an acute angle.

[0032] When in use, the No. 1 medium flow pipe 145 and the No. 2 medium flow pipe 146 are connected to the pipeline loop for providing the cooled medium, and then the fixed base 2 is fixedly installed in the working area, the drive motor 11 is started, and the main pulley 12 drives the central rotating shaft 154 to rotate through the belt 13. When the fan blade 155 rotates with the rotor of the drive motor 11, the gas flow direction caused by it is from the air intake cavity 7 to the axial gas flow cavity 3, which will cause the surrounding gas to have external air enter the air intake cavity 7 and then flow to the axial gas flow cavity 3. Cavity 3, when the gas passes through the filter hole 1510, the impurities mixed in the gas will be blocked at the air inlet port of the filter hole 1510, and at the same time, the high-speed rotating conical filter cover 157 will cause the impurities to rotate, and the impurities will generate centrifugal force, so that they will be thrown to the surroundings, and the medium will flow into the vortex medium flow hole 147, and after the cooling gas passes through the vortex air inlet 143, the gas flow speed will be increased, and at the same time, the gas temperature will be reduced, and the gas will be directly blown to the vortex medium flow pipe 144, thereby realizing high-efficiency refrigeration and cooling of the flowing medium.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dry air cooler, comprising a horizontal air cooling kettle (1) having an axial gas flow cavity (3) disposed therein, an exhaust channel body (4) integrally disposed at one end of the horizontal air cooling kettle (1), an intake channel body (5) integrally disposed at the other end of the horizontal air cooling kettle (1), a fixed base (2) fixedly mounted on the periphery of the exhaust channel body (4) and having a fixed support effect, an exhaust cavity (6) disposed inside the exhaust channel body (4) and communicating with the axial gas flow cavity (3), and an exhaust channel body (7) disposed on the intake channel body (8). 5) an air intake cavity (7) inside and connected to the axial gas flow cavity (3), a pipe through hole (8) arranged on the circumferential surface of the horizontal air-cooling kettle (1) and connected to the axial gas flow cavity (3), a belt through hole (9) arranged on the circumferential surface of the air intake channel body (5) and connected to the air intake cavity (7), a driving motor (11) fixedly mounted on the upper part of the air intake channel body (5) through a motor fixing sleeve (10), and a main pulley (12) fixedly mounted on the rotor end of the driving motor (11), characterized in that: Also includes, A vortex medium cooling mechanism (14) is provided with a vortex medium flow pipe (144) installed inside the axial gas flow chamber (3) and capable of causing the medium to flow in a vortex stroke, and a vortex air inlet (143) located on one side of the vortex medium flow pipe (144) in the air inlet direction and capable of causing the high-speed flowing gas to be concentratedly blown toward the vortex medium flow pipe (144); and a centrifugal air pressure drive mechanism (15), which is provided with a fan blade (155) located inside the air intake cavity (7) and capable of allowing external air to enter the axial air flow cavity (3) from the air intake cavity (7) when rotating, and a conical filter cover (157) rotatably mounted on the air intake port of the air intake channel body (5) and capable of filtering debris.

2. A dry air cooler according to claim 1, characterized in that: The vortex medium cooling mechanism (14) comprises a first fixed ring body (141) and a vortex medium flow pipe (144); the first fixed ring body (141) is fixedly installed inside the axial gas flow chamber (3); a wind shield plate (142) integrally formed with the first fixed ring body (141) is arranged at the center thereof; a vortex air inlet (143) communicating with both end surfaces of the wind shield plate (142) is arranged in the plate body of the wind shield plate (142); the axial gas flow chamber (3) is provided with a vortex medium flow pipe (144) on one side of the wind shield plate (142); the vortex medium flow pipe (144) is provided with a first fixed ring body (141); 44) is provided with a vortex medium flow hole (147) inside, the center end of the vortex medium flow pipe (144) is provided with a first medium flow pipe (145) which is an integral structure with the vortex medium flow pipe and passes through the pipe through hole (8), the first medium flow pipe (145) is connected to the center port of the vortex medium flow hole (147), the edge end of the vortex medium flow pipe (144) is provided with a second medium flow pipe (146) which is an integral structure with the vortex medium flow pipe and passes through the pipe through hole (8), the second medium flow pipe (146) is connected to the edge port of the vortex medium flow hole (147).

3. A dry air cooler according to claim 2, characterized in that: Both planar ends of the wind shield (142) are perpendicular to the axial center line of the axial gas flow cavity (3).

4. A dry air cooler according to claim 3, characterized in that: The vortex air inlet (143) and the vortex medium flow hole (147) are symmetrically arranged.

5. A dry air cooler according to claim 4, characterized in that: The diameter of the vortex air inlet (143) at the end facing the vortex medium flow hole (147) is smaller than the diameter of the end facing away from the vortex medium flow hole (147).

6. A dry air cooler according to claim 5, characterized in that: The centrifugal pneumatic drive mechanism (15) comprises a second fixed ring body (151) fixedly mounted inside the air intake cavity (7), a shaft mounting hole (153) being arranged at the center of the second fixed ring body (151), a gas flow port (152) for gas flow being arranged in the area between the outer circumference surface and the inner circumference surface of the second fixed ring body (151), a rotatable central rotating shaft (154) being mounted inside the shaft mounting hole (153) of the second fixed ring body (151) via a bearing, a plurality of fan blades (155) being fixedly mounted on the shaft body of the central rotating shaft (154), and a shaft body of the central rotating shaft (154) A secondary pulley (156) is fixedly mounted on the upper surface, and the secondary pulley (156) and the primary pulley (12) are linked via a belt (13) that passes through the belt through hole (9). One end of the central rotating shaft (154) extends to one end outside the air intake cavity (7). A conical filter cover (157) is fixedly mounted on one end of the central rotating shaft (154). A conical gas flow cavity (158) is arranged inside the conical filter cover (157). One end of the conical gas flow cavity (158) is provided with an annular groove (159) that is clamped on the periphery of the end of the air intake channel body (5). A filter hole (1510) is arranged on the conical surface of the conical filter cover (157).

7. A dry air cooler according to claim 6, characterized in that: When the fan blade (155) rotates along with the rotor of the driving motor (11), the direction of gas flow caused by the fan blade (155) is from the air inlet cavity (7) toward the axial gas flow cavity (3).

8. A dry air cooler according to claim 7, characterized in that: The angle between the axis of the filter hole (1510) and the axis of the central rotation axis (154) is an acute angle.

9. A dry air cooler according to claim 8, characterized in that: The central rotating shaft (154) is provided with a tip structure for reducing gas flow at one end located inside the axial gas flow cavity (3).

10. A dry air cooler according to claim 9, characterized in that: The axis center line of the central rotating shaft (154) and the axis center line of the air intake cavity (7) are arranged on the same line.

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