Cooling tower
By installing an auxiliary oil tank and a top cover air inlet channel in the cooling tower, the problem of reduced fan air inlet surface is solved, improving the fan's air guiding efficiency and heat dissipation effect, and achieving efficient heat dissipation and compact layout of the cooling tower.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-07
- Publication Date
- 2026-03-31
AI Technical Summary
The cooling towers of locomotive converters and transformers have irregular top cover structures, which reduces the air intake surface of the fans and causes uneven airflow, affecting the heat dissipation performance of the cooling towers.
Design a cooling tower structure, including a tower body, a top cover, a fan, an auxiliary oil tank, a radiator, oil lines, water lines, and a base. The auxiliary oil tank is located between the fan and the radiator and has a circular air guide channel that runs vertically through it. An air inlet channel is set inside the top cover to increase the air inlet surface of the fan and optimize the fan layout.
It improves the airflow efficiency and performance of the fan, reduces noise, enhances the heat dissipation effect of the cooling tower, and makes the layout more compact.
Smart Images

Figure CN121772191A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of cooling technology, and more particularly to a cooling tower. Background Technology
[0002] As a cooling component for the locomotive's converter and transformer, the cooling tower's heat dissipation performance directly affects the locomotive's operating condition. Due to the locomotive's shape and the layout of the machinery room, the cooling tower's top cover has an irregular structure, reducing the air intake surface of the fan and affecting its performance. When the cooling air is pressurized by the fan and blown onto the radiator, the air velocity on the radiator's air intake surface is uneven, with some areas having excessively low air velocity, thus affecting the cooling tower's heat dissipation performance.
[0003] Therefore, it is necessary to provide a new type of cooling tower to solve the above-mentioned technical problems. Summary of the Invention
[0004] The main objective of this invention is to provide a cooling tower that addresses the aforementioned problems.
[0005] To achieve the above objectives, the present invention provides a cooling tower comprising: a tower body, a top cover, a fan, an auxiliary oil tank, a radiator, oil lines, water lines, and a base; The top cover is installed on the top of the tower body, and the top cover has an air inlet channel; The tower body has an installation cavity that extends vertically. The fan and the auxiliary oil tank are respectively located in the mounting cavity; and the auxiliary oil tank is connected to the tower body, and the fan is connected to the auxiliary oil tank; the center of the auxiliary oil tank has a vertically penetrating air guide channel with a circular cross-section; The radiator is installed at the bottom of the tower body, and the oil passage and the water passage are connected to the radiator. The radiator is used to dissipate heat from the oil passage and the water passage. The base is installed at the bottom of the radiator, and the base is provided with an exhaust vent.
[0006] Optionally, the auxiliary fuel tank includes an outer shell, an inner cylinder, an upper sealing plate, and a lower sealing plate; The outer shell is installed on the tower body; the inner cylinder is located inside the outer shell; the upper sealing plate is sealed to the upper end of the outer shell and the inner cylinder; the lower sealing plate is sealed to the lower end of the outer shell and the inner cylinder; the outer shell, the inner cylinder, the upper sealing plate and the lower sealing plate together form an annular oil storage cavity.
[0007] Optionally, the auxiliary oil tank further includes a plurality of reinforcing ribs; the plurality of reinforcing ribs are evenly distributed within the oil storage cavity.
[0008] Optionally, the inner cylinder includes a cylindrical section and a conical section; the cylindrical section is located near the fan end; the conical section is located near the radiator end; the inner diameter of the conical section increases from top to bottom.
[0009] Optionally, the inclination angle of the conical section is 10°-20°.
[0010] Optionally, the fan includes a mounting frame, a motor, and blades; The mounting bracket is fixedly connected to the upper sealing plate; the motor and the blades are respectively connected to the mounting bracket; the motor is driven by the blades; the fan is located at the bottom of the blades.
[0011] Optionally, the fan further includes a guide shield; the guide shield is mounted on top of the mounting frame.
[0012] Optionally, the top of the air inlet channel is square, and the bottom of the air inlet channel is circular; the bottom of the air inlet channel is connected to the top of the guide cover.
[0013] Optionally, an air cavity is provided between the auxiliary oil tank and the radiator.
[0014] Optionally, the tower body is provided with a maintenance door.
[0015] In this invention, by placing the auxiliary oil tank between the fan and the radiator, and using a circular cross-section air guide channel at the center of the auxiliary oil tank to direct the air blown by the fan to the radiator, this method results in lower noise and higher air guiding efficiency compared to the traditional square air guide channel through which the fan passes. Furthermore, placing the auxiliary oil tank between the fan and the radiator makes the overall cooling tower layout more compact. Additionally, a top cover with an air inlet channel is provided; the top of the air inlet channel is square, and the bottom is circular, increasing the fan's air intake surface area and thus improving fan performance. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the structure of a cooling tower according to an embodiment of the present invention; Figure 2 This is a partial structural diagram of a cooling tower according to an embodiment of the present invention; Figure 3 This is a partial structural diagram of the fan in an embodiment of the present invention; Figure 4 This is a partial structural diagram of the inner cylinder in an embodiment of the present invention; Figure 5 This is a partial structural diagram of the top cover in an embodiment of the present invention.
[0018] Explanation of icon numbers: 1. Tower body; 2. Top cover; 201. Air inlet duct; 3. Fan; 301. Mounting bracket; 302. Motor; 303. Blades; 304. Guide cover; 4. Auxiliary oil tank; 401. Air guide duct; 402. Outer shell; 403. Inner cylinder; 4031. Cylindrical section; 4032. Conical section; 404. Upper sealing plate; 405. Lower sealing plate; 406. Reinforcing rib; 5. Radiator; 6. Base; 7. Maintenance door.
[0019] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.
[0021] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.
[0022] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0023] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0024] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.
[0025] The present invention proposes a cooling tower, comprising: a tower body 1, a top cover 2, a fan 3, an auxiliary oil tank 4, a radiator 5, an oil passage, a water passage, and a base 6; The top cover 2 is installed on the top of the tower body 1, and the top cover 2 has an air inlet channel 201; the top of the air inlet channel 201 is square, and the bottom of the air inlet channel 201 is circular.
[0026] The tower body 1 has an installation cavity that extends vertically. The fan 3 and the auxiliary oil tank 4 are respectively located in the mounting cavity; and the auxiliary oil tank 4 is connected to the tower body 1, and the fan 3 is connected to the auxiliary oil tank 4; the center of the auxiliary oil tank 4 has a vertically penetrating air guide channel 401 with a circular cross-section; The radiator 5 is installed at the bottom of the tower body 1, and the oil passage and the water passage are connected to the radiator 5. The radiator 5 is used to dissipate heat from the oil passage and the water passage. The base 6 is installed at the bottom of the radiator 5, and the base 6 is provided with an exhaust vent.
[0027] In this embodiment, when the fan 3 is started, the fan 3 rotates, and a negative pressure is formed inside the top cover 2. The cold air from the outside enters the cooling tower through the air inlet channel 201 of the top cover 2; then it passes through the air guide channel 401 of the auxiliary oil tank 4 and blows towards the radiator 5. The radiator 5 dissipates heat from the oil and water circuits. It should be noted that the radiator 5 dissipating heat from the oil and water circuits is existing technology and will not be described in detail here. In this embodiment, by placing the auxiliary oil tank 4 between the fan 3 and the radiator 5, and using the air guide channel 401 with a circular cross-section that runs vertically through the center of the auxiliary oil tank 4 to guide the air blown by the fan 3 to the radiator 5, the noise is lower and the air guiding efficiency is higher compared to the traditional square structure air guide channel 401 through which the fan 3 passes. Furthermore, placing the auxiliary oil tank 4 between the fan 3 and the radiator 5 makes the layout of the entire cooling tower more compact. Meanwhile, a top cover 2 is provided, which has an air inlet channel 201 inside. The top of the air inlet channel 201 is square and the bottom of the air inlet channel 201 is round. This can increase the air inlet surface of the fan 3, thereby increasing the performance of the fan 3.
[0028] Optionally, the auxiliary oil tank 4 includes an outer shell 402, an inner cylinder 403, an upper sealing plate 404, and a lower sealing plate 405; The outer shell 402 is installed on the tower body 1; the inner cylinder 403 is located inside the outer shell 402; the upper sealing plate 404 is sealed to the upper end of the outer shell 402 and the inner cylinder 403; the lower sealing plate 405 is sealed to the lower end of the outer shell 402 and the inner cylinder 403; the outer shell 402, the inner cylinder 403, the upper sealing plate 404 and the lower sealing plate 405 enclose and form an annular oil storage cavity.
[0029] Optionally, the auxiliary oil tank 4 further includes a plurality of reinforcing ribs 406; the plurality of reinforcing ribs 406 are evenly distributed in the oil storage cavity.
[0030] Optionally, the inner cylinder 403 includes a cylindrical section 4031 and a conical section 4032; the cylindrical section 4031 is located near the end of the fan 3; the conical section 4032 is located near the end of the radiator 5; the inner diameter of the conical section 4032 increases from top to bottom.
[0031] Optionally, the inclination angle of the conical section 4032 is 10°-20°.
[0032] In this embodiment, the inner cylinder 403 of the auxiliary oil tank 4 is designed with a cylindrical section 4031 on the top and a conical section 4032 on the bottom. The conical section 4032 diffuses the air, making the inlet air velocity of the radiator 5 more uniform, and the heat dissipation effect and flow field better.
[0033] Optionally, the fan 3 includes a mounting frame 301, a motor 302, and blades 303; The mounting bracket 301 is fixedly connected to the upper sealing plate 404; the motor 302 and the blade 303 are respectively connected to the mounting bracket 301; the motor 302 is connected to the blade 303 in a transmission manner; the fan 3 is located at the bottom of the blade 303.
[0034] Optionally, the fan 3 further includes a guide cover 304; the guide cover 304 is mounted on the top of the mounting bracket 301.
[0035] In this embodiment, the fan 3 is mounted on the upper sealing plate 404, wherein the auxiliary oil tank 4 is provided with multiple reinforcing ribs 406, which support the fan 3.
[0036] Optionally, the top of the air inlet channel 201 is square, and the bottom of the air inlet channel 201 is circular; the bottom of the air inlet channel 201 is connected to the top of the guide cover 304.
[0037] Optionally, an air cavity is provided between the auxiliary oil tank 4 and the radiator 5.
[0038] In this embodiment, the air blown by the fan 3 passes through the air guide channel 401 of the auxiliary oil tank 4 and then blows towards the radiator 5, so that there is a certain height between the radiator 5 and the auxiliary oil tank 4, which is used to diffuse the air and reduce noise.
[0039] Optionally, the tower body 1 is provided with a maintenance door 7.
[0040] In this embodiment, the maintenance door 7 is provided to facilitate the maintenance and repair of the cooling tower by the staff.
[0041] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.
Claims
1. A cooling tower, characterized in that, include: Tower body, top cover, fan, auxiliary oil tank, radiator, oil circuit, water circuit and base; The top cover is installed on the top of the tower body, and the top cover has an air inlet channel; The tower body has an installation cavity that extends vertically. The fan and the auxiliary oil tank are respectively located in the mounting cavity; and the auxiliary oil tank is connected to the tower body, and the fan is connected to the auxiliary oil tank; the center of the auxiliary oil tank has a vertically penetrating air guide channel with a circular cross-section; The radiator is installed at the bottom of the tower body, and the oil passage and the water passage are connected to the radiator. The radiator is used to dissipate heat from the oil passage and the water passage. The base is installed at the bottom of the radiator, and the base is provided with an exhaust vent.
2. The cooling tower as described in claim 1, characterized in that, The auxiliary fuel tank includes an outer shell, an inner cylinder, an upper sealing plate, and a lower sealing plate; The outer shell is installed on the tower body; the inner cylinder is located inside the outer shell; the upper sealing plate is sealed to the upper end of the outer shell and the inner cylinder; the lower sealing plate is sealed to the lower end of the outer shell and the inner cylinder; the outer shell, the inner cylinder, the upper sealing plate and the lower sealing plate together form an annular oil storage cavity.
3. The cooling tower as described in claim 2, characterized in that, The auxiliary oil tank also includes multiple reinforcing ribs; the multiple reinforcing ribs are evenly distributed within the oil storage cavity.
4. The cooling tower as described in claim 2, characterized in that, The inner cylinder includes a cylindrical section and a conical section; the cylindrical section is located near the fan end; the conical section is located near the radiator end; the inner diameter of the conical section increases from top to bottom.
5. The cooling tower as described in claim 4, characterized in that, The inclination angle of the conical section is 10°-20°.
6. The cooling tower as described in claim 4, characterized in that, The fan includes a mounting frame, a motor, and blades; The mounting bracket is fixedly connected to the upper sealing plate; the motor and the blades are respectively connected to the mounting bracket; the motor is driven by the blades; the fan is located at the bottom of the blades.
7. The cooling tower as described in claim 6, characterized in that, The fan also includes a guide shield; the guide shield is mounted on the top of the mounting frame.
8. The cooling tower as described in claim 7, characterized in that, The top of the air inlet channel is square, and the bottom of the air inlet channel is round; the bottom of the air inlet channel is connected to the top of the guide cover.
9. The cooling tower as described in claim 1, characterized in that, An air cavity is provided between the auxiliary oil tank and the radiator.
10. The cooling tower as claimed in claim 1, characterized in that, The tower body is equipped with maintenance doors.