A cooling structure for a centrifugal blower
By installing a hollowed-out cooling heat exchange cylinder and a spiral heat exchange tube on the centrifugal blower, and using low-temperature coolant for circulating heat exchange, the problem of airflow interference caused by fan cooling is solved, achieving efficient water cooling heat dissipation and improving the operational stability and cooling effect of the centrifugal blower.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI DONG BLOWER CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-06-23
AI Technical Summary
Traditional centrifugal blower fan cooling methods may cause airflow interference, affecting operational stability, and cannot effectively solve the problem of heat accumulation.
The cooling heat exchange cylinder with a hollow structure and a spiral heat exchange tube utilizes low-temperature coolant for circulating heat exchange. It exchanges heat with a centrifugal blower through a circulating pipe, avoiding airflow interference and achieving water-cooled heat dissipation.
It improves the operational stability and cooling efficiency of the centrifugal blower, avoids overheating damage, achieves rapid cooling, and enhances the practicality of the cooling structure.
Smart Images

Figure CN224396775U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a cooling mechanism, and more particularly to a cooling structure for a centrifugal blower, belonging to the technical field of centrifugal blower accessories. Background Technology
[0002] A centrifugal blower is a machine that uses input mechanical energy to accelerate gas through the high-speed rotation of an impeller, then decelerates and changes its flow direction, converting kinetic energy into potential energy (pressure). Its working principle is that after gas is drawn into the impeller, the centrifugal force of the impeller accelerates the gas, which is then decelerated in a diffuser. This deceleration converts kinetic energy into pressure energy, thereby achieving gas compression and transport.
[0003] The structure of a centrifugal blower mainly includes: impeller, shaft and bearing, suction type, casing, diffuser, etc. Centrifugal blowers are widely used in many fields in modern society. After long-term use, centrifugal blowers will generate a lot of heat. If heat dissipation is not carried out, the centrifugal blower may short-circuit or be damaged due to overheating. Most traditional centrifugal blowers use fans for cooling. However, the air blown by the fan may interfere with the airflow of the centrifugal blower, affecting the operational stability of the centrifugal blower and having certain shortcomings. Therefore, this utility model proposes a cooling structure for water cooling of centrifugal blowers. Utility Model Content
[0004] This invention provides a cooling structure for a centrifugal blower to solve the problems mentioned in the background art.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0006] This utility model discloses a cooling structure for a centrifugal blower, comprising a cooling heat exchange cylinder with a hollow interior. A heat exchange tube is fixedly installed inside the cooling heat exchange cylinder, and the heat exchange tube has a spiral structure design. A liquid inlet pipe is fixedly connected to the top of the heat exchange tube via a flange, and the top of the liquid inlet pipe extends out of the cooling heat exchange cylinder, forming a liquid inlet. A liquid outlet pipe is fixedly connected to the bottom of the heat exchange tube via a flange, and the top of the liquid outlet pipe extends out of the cooling heat exchange cylinder, forming a liquid outlet. The liquid inlet and outlet are interconnected via a circulation pipe and a circulation pump. A flowing coolant is disposed inside the heat exchange tube, and a low-temperature heat exchange coolant is injected into the cooling heat exchange cylinder.
[0007] Furthermore, in order to facilitate the injection and discharge of the low-temperature coolant inside the cooling heat exchange cylinder, an upper end cover is fixedly installed at the top of the cooling heat exchange cylinder, and a lower end cover is fixedly installed at the bottom of the cooling heat exchange cylinder. A heat exchange injection port is provided at the center of the outer surface of the upper end cover, and a heat exchange discharge port is provided at the center of the lower surface of the lower end cover.
[0008] Furthermore, in order to improve the sealing effect of the diameter, the interior of both the heat exchange injection port and the heat exchange discharge port is provided with a sealing plug that matches the diameter.
[0009] Furthermore, in order to improve the bottom stability of the cooling heat exchange cylinder, a number of lower support legs are fixedly installed on the lower surface of the bottom end of the cooling heat exchange cylinder, and the number of lower support legs are evenly distributed in a circle around the center point of the cooling heat exchange cylinder.
[0010] Furthermore, in order to improve the liquid storage effect of the lower base, a lower base is fixedly installed between the bottom ends of several of the lower support legs, and a liquid storage tank is provided at the center of the upper surface of the lower base.
[0011] Furthermore, in order to protect the exterior of the cooling heat exchange cylinder, an outer protective mesh is fixedly fitted on the outer surface of the cooling heat exchange cylinder, and the outer protective mesh adopts a mesh structure design.
[0012] Compared with the prior art, the present invention provides the following beneficial effects:
[0013] This invention utilizes a circulating pipe to allow the low-temperature liquid flowing within the centrifugal blower to exchange heat, thereby enabling the centrifugal blower to undergo water-cooled heat exchange and cooling. This facilitates rapid cooling of the centrifugal blower, preventing overheating and damage. Furthermore, the water-cooled design effectively avoids airflow interference issues associated with air cooling, thus significantly improving the operational stability of the centrifugal blower.
[0014] The heated liquid can re-enter the heat exchange tube through the inlet pipe. A low-temperature coolant is placed inside the cooling heat exchange cylinder, allowing the heated liquid inside the heat exchange tube to exchange heat with the low-temperature coolant inside the cooling cylinder, thus cooling it down. This allows the cooled liquid to circulate and be discharged, completing the circulating water cooling of the centrifugal blower. This design is more practical. Furthermore, the heat exchange tube of this invention adopts a spiral structure design, which improves the internal liquid flow path and increases the heat exchange residence time, thereby enhancing the heat exchange and cooling effect. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a right-side view of the overall structure of the cooling structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the overall structure of the cooling structure of this utility model from the left.
[0018] Figure 3 This is a bottom view of the cooling heat exchange cylinder structure of this utility model;
[0019] Figure 4 This is a top view of the internal structure of the cooling heat exchange cylinder of this utility model;
[0020] Figure 5 This is a schematic diagram of the overall structure of the heat exchange tube of this utility model;
[0021] Figure 6 This is a schematic diagram of the internal cross-sectional structure of the cooling heat exchange cylinder of this utility model.
[0022] In the diagram: 1. Cooling heat exchange cylinder; 2. Upper end cover; 3. Heat exchange tube; 4. Liquid inlet pipe; 5. Liquid inlet; 6. Liquid outlet pipe; 7. Liquid outlet; 8. Heat exchange injection port; 9. Heat exchange discharge port; 10. Lower support leg; 11. Lower base; 12. Outer protective net. Detailed Implementation
[0023] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.
[0024] According to an embodiment of the present invention, a cooling structure for a centrifugal blower is provided.
[0025] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-6As shown, a cooling structure for a centrifugal blower according to an embodiment of the present invention includes a cooling heat exchange cylinder 1. The cooling heat exchange cylinder 1 has a hollow structure design. A heat exchange tube 3 is fixedly installed inside the cooling heat exchange cylinder 1. The heat exchange tube 3 adopts a spiral structure design. The top end of the heat exchange tube 3 is fixedly connected to an inlet pipe 4 through a flange. The top end of the inlet pipe 4 extends out of the cooling heat exchange cylinder 1 and is provided with an inlet port 5. The bottom end of the heat exchange tube 3 is fixedly connected to an outlet pipe 6 through a flange. The top end of the outlet pipe 6 extends out of the cooling heat exchange cylinder 1 and is provided with an outlet port 7. The inlet port 5 and the outlet port 7 are interconnected through a circulation pipe and a circulation pump. A flowing coolant is provided inside the heat exchange tube 3, and a low-temperature heat exchange coolant is injected inside the cooling heat exchange cylinder 1.
[0026] In one embodiment, an upper end cover 2 is fixedly installed at the top of the cooling heat exchange cylinder 1, and a lower end cover is fixedly installed at the bottom of the cooling heat exchange cylinder 1. A heat exchange injection port 8 is provided at the center of the outer surface of the upper end cover 2, and a heat exchange discharge port 9 is provided at the center of the lower surface of the lower end cover.
[0027] In one embodiment, both the heat exchange inlet 8 and the heat exchange outlet 9 are provided with sealing plugs that are adapted to their respective diameters.
[0028] In one embodiment, a plurality of lower support legs 10 are fixedly installed on the lower surface of the bottom end of the cooling heat exchange cylinder 1, and the plurality of lower support legs 10 are circumferentially distributed at equal intervals through the central point of the cooling heat exchange cylinder 1.
[0029] In one embodiment, a lower base 11 is fixedly installed between the bottom ends of several lower support legs 10, and a liquid storage tank is provided at the center of the upper surface of the lower base 11.
[0030] In one embodiment, an outer protective net 12 is fixedly sleeved on the outer surface of the cooling heat exchange cylinder 1, and the outer protective net 12 adopts a mesh structure design.
[0031] Working principle: The cooling structure of this centrifugal blower can be installed on the side of the centrifugal blower as a supporting structure.
[0032] In use, the inlet 5 and outlet 7 are connected by a circulation pipe wrapped around the outer casing of the centrifugal blower. The circulation pump drives the heat exchange liquid inside the heat exchange tube 3 to flow. When the low-temperature liquid in the heat exchange tube 3 flows out from the outlet pipe 6, it can flow into the circulation pipe wrapped around the outside of the centrifugal blower. The low-temperature liquid flowing in the circulation pipe can exchange heat with the centrifugal blower, thus helping the centrifugal blower to achieve water-cooled heat exchange and cooling. This helps the centrifugal blower to cool down quickly and avoids overheating damage. At the same time, the water-cooled structure design can effectively avoid the airflow interference problem of air cooling and effectively improve the operating stability of the centrifugal blower.
[0033] The heated liquid after heat exchange can re-enter the heat exchange tube 3 through the liquid inlet pipe 4. Since a low-temperature heat exchange coolant is provided inside the cooling heat exchange cylinder 1, the heated liquid inside the heat exchange tube 3 can exchange heat with the low-temperature coolant inside the cooling heat exchange cylinder 1 to cool down. This allows the low-temperature liquid after heat exchange to be circulated and discharged, thus completing the circulating water cooling cooling work of the centrifugal blower, which is more practical. In addition, the heat exchange tube 3 of this utility model adopts a spiral structure design. The spiral heat exchange tube 3 can improve the internal liquid flow path and increase the heat exchange residence time, thereby improving the heat exchange and cooling effect.
[0034] After the coolant inside the cooling heat exchange cylinder 1 has undergone multiple heat exchange cycles and heated up, the heated coolant can be discharged and recycled through the heat exchange discharge port 9. Then, new low-temperature heat exchange liquid is injected through the heat exchange injection port 8, thereby ensuring the normal operation of the cooling structure of this utility model.
[0035] In summary, the above-mentioned technical solution of this utility model solves the technical problem in the background art that "most traditional centrifugal blowers use fans for cooling and heat dissipation. However, the air blown out by the fan during cooling and heat dissipation may have certain airflow interference with the centrifugal blower, affecting the operational stability of the centrifugal blower and having certain shortcomings in use".
[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection 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 utility model according to the specific circumstances.
[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A cooling structure for a centrifugal blower, characterized in that, The device includes a cooling heat exchange cylinder (1), which has a hollow structure inside. A heat exchange tube (3) is fixedly installed inside the cooling heat exchange cylinder (1). The heat exchange tube (3) has a spiral structure. The top end of the heat exchange tube (3) is fixedly connected to an inlet pipe (4) through a flange. The top end of the inlet pipe (4) extends out of the cooling heat exchange cylinder (1) and is provided with an inlet port (5). The bottom end of the heat exchange tube (3) is fixedly connected to an outlet pipe (6) through a flange. The top end of the outlet pipe (6) extends out of the cooling heat exchange cylinder (1) and is provided with an outlet port (7). The inlet port (5) and the outlet port (7) are interconnected through a circulation pipe and a circulation pump. A flowing coolant is provided inside the heat exchange tube (3). The cooling heat exchange cylinder (1) is filled with a low-temperature heat exchange coolant.
2. The cooling structure for a centrifugal blower according to claim 1, characterized in that: The top end of the cooling heat exchange cylinder (1) is fixedly installed with an upper end cover (2), and the bottom end of the cooling heat exchange cylinder (1) is fixedly installed with a lower end cover. A heat exchange injection port (8) is provided at the center of the outer surface of the upper end cover (2), and a heat exchange discharge port (9) is provided at the center of the lower surface of the lower end cover.
3. A cooling structure for a centrifugal blower according to claim 2, characterized in that: The heat exchange injection port (8) and the heat exchange discharge port (9) are both equipped with sealing plugs that match their diameter.
4. A cooling structure for a centrifugal blower according to claim 1, characterized in that: A number of lower support legs (10) are fixedly installed on the lower surface of the bottom end of the cooling heat exchange cylinder (1), and the lower support legs (10) are circumferentially distributed at equal intervals through the center point of the cooling heat exchange cylinder (1).
5. A cooling structure for a centrifugal blower according to claim 4, characterized in that: A lower base (11) is fixedly installed between the bottom ends of several of the lower support legs (10), and a liquid storage tank is provided at the center of the upper surface of the lower base (11).
6. A cooling structure for a centrifugal blower according to claim 1, characterized in that: The outer surface of the cooling heat exchange cylinder (1) is fixedly fitted with an outer protective net (12), which adopts a mesh structure design.