Cooling type airlock

By installing a cooling jacket and a circulation tank on the connecting shaft of the airlock, a coolant circulation path is formed, which solves the problem of insufficient heat dissipation of the shaft and enables rapid cooling and stable operation of the airlock.

CN224242202UActive Publication Date: 2026-05-15SHANGHAI DONGRUI CHEM
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI DONGRUI CHEM
Filing Date
2025-05-16
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

The current design of the fan shaft heat dissipation structure is inadequate, which makes the shaft prone to damage and affects the normal use of the equipment.

Method used

A cooling jacket is installed on the connecting shaft of the airlock blower, and a circulation path for the coolant is formed through the inlet pipe and the circulation tank. Combined with a sealing gasket, the sealing of the connection part is enhanced, thereby achieving effective cooling of the shaft.

Benefits of technology

It effectively reduces the temperature of the air blower, prevents excessively high temperatures caused by frictional heat, enhances the stability and cooling efficiency of the equipment, and avoids coolant leakage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of airlocks, and discloses a cooling type airlock which comprises an airlock body, an air inlet port and an air outlet port, the air inlet port and the air outlet port are located at the upper end and the lower end of the airlock body and communicated with each other, and a connecting frame is fixedly installed at the end, away from the center line, of the airlock body. A connecting rod is fixedly installed at the other end, away from the airlock body, of the connecting frame, and a fixing disc is fixedly installed at the other end, away from the connecting frame, of the connecting rod. According to the cooling type airlock, cooling liquid enters the liquid inlet frame from the liquid inlet pipe and then flows into the first through grooves, the first through grooves communicate with one another through the circulating groove, the cooling liquid circularly flows in the circulating groove, and finally cooling liquid intercommunication circulation between two identical structure parts is achieved through the second through groove; the first through groove, the circulating groove and the second through groove are designed to form a cooling liquid circulating channel, so that cooling liquid can fully and circularly flow in the cooling jacket to take away heat dissipated by the airlock body, and rapid cooling can be achieved.
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Description

Technical Field

[0001] This utility model relates to the field of air shut-off fan technology, specifically a cooling air shut-off fan. Background Technology

[0002] Rotary airlocks are generally used for feeding combustion furnaces or reactors that require internal and external air isolation, such as conveying low-melting-point polyester and dilute phase materials. The rotary airlock feeds material through the feed inlet, and the material is discharged from the discharge outlet as the impeller rotates. Since the impeller blades always separate the feed inlet and discharge outlet, air isolation between the feed inlet and discharge outlet can be achieved. Due to the high temperature inside the combustion furnace or reactor, the rotary airlock operates at a high temperature, and its shaft is constantly rotating, so it needs to be cooled down, which is often not conducive to the full reaction of the material.

[0003] Chinese Invention Patent Publication No. CN108861609B discloses a rotary valve with a cooling structure. In this rotary valve, the angle between the housing radius where the eighth straight line is located and the housing radius where the first straight line is located is greater than or equal to the angle between adjacent blades on the impeller. This avoids the air outlet from being connected to the feed inlet, thus ensuring the efficiency of cooling gas recovery through the air outlet and preventing the exhaust from the housing through the feed inlet from adversely affecting the feed. However, although this rotary valve with a cooling structure can dissipate heat from the blades, it does not have a heat dissipation structure for the rotating rod. As a result, the rotating rod is prone to damage after long-term use, thus affecting the normal operation of the entire rotary valve. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a cooling and temperature-reducing type airlock fan, which can effectively solve the problems in the prior art.

[0005] The technical solution adopted by this utility model is: a cooling and temperature-reducing type airlock fan, including an airlock fan body and an air inlet port and an air outlet port located at the upper and lower ends of the airlock fan body and communicating with each other. A connecting frame is fixedly installed at one end of the airlock fan body away from the center line. A connecting rod is fixedly installed at the other end of the connecting frame away from the airlock fan body. A fixing plate is fixedly installed at the other end of the connecting rod away from the connecting frame. A connecting shaft is rotatably installed at one end of the fixing plate near the center line. A cooling component, a fixing seat and a drive motor are sequentially arranged at the other end of the connecting shaft away from the airlock fan body. The output shaft of the drive motor is fixedly installed with the connecting shaft.

[0006] Preferably, the cooling assembly includes a cooling jacket, which has a connecting groove extending from the airlock body to one end of the drive motor. The diameter of the connecting groove is larger than the diameter of the connecting rod. The two ends of the cooling jacket are fixedly installed to the fixing plate and the fixing seat through flanges.

[0007] With the above technical solution, when installing the cooling component, first align the connecting groove of the cooling jacket with the connecting rod, and slip it on from one end so that the cooling jacket is located between the fixed plate and the fixed seat. Then, use the flanges at both ends to fix and install it to the fixed plate and the fixed seat respectively. Subsequently, the end of the connecting rod located in the cooling jacket can be cooled.

[0008] Preferably, the cooling jacket is provided with a liquid inlet pipe from the inside to the outside, and a liquid inlet frame that communicates with the liquid inlet pipe is fixedly installed at one end of the liquid inlet pipe near the cooling jacket.

[0009] The above technical solution allows the low-temperature coolant to be transported to the inlet frame through the inlet pipe. The inlet frame is interconnected with the inlet pipe and close to the cooling jacket, which enables the coolant to be evenly distributed near the cooling jacket. This allows for subsequent circulation and cooling within the cooling jacket. The low temperature of the coolant can be used to reduce the temperature of the blower body and prevent the blower temperature from becoming too high due to frictional heat generated during material transport.

[0010] Preferably, the inner surface of the cooling jacket is provided with a through groove one, a circulation groove and a through groove two. Multiple through grooves one are provided, and multiple through grooves one are interconnected through the circulation groove. Two of the connecting groove, liquid inlet pipe, liquid inlet frame and through groove one are provided, and two of the connecting groove, liquid inlet pipe, liquid inlet frame and through groove one are interconnected through through groove two.

[0011] With the above technical solution, after the coolant enters the inlet frame from the inlet pipe, it flows into the first channel. Multiple channels are interconnected through the circulation channel, where the coolant circulates. Finally, the coolant circulates between two identical structural parts through the second channel. The design of the first channel, the circulation channel, and the second channel forms a circulation path for the coolant, allowing the coolant to circulate fully within the cooling jacket, carrying away the heat dissipated by the blower body, thus achieving rapid cooling.

[0012] Preferably, there are two identical connecting frames, connecting rods, and fixing plates, and the two connecting frames, connecting rods, and fixing plates are symmetrically distributed about the center line of the airlock body.

[0013] The above technical solution, through the design of two connecting frames, connecting rods and fixed plates, can avoid the airlock body from tilting or shaking due to unilateral force, thus enhancing the stability of equipment operation. It can also achieve natural heat dissipation for the connecting shaft located between the two connecting frames and fixed plates.

[0014] Preferably, a sealing gasket is provided at the end of the fixed plate away from the air shut-off fan body, and a sealing gasket is provided at the end of the fixed base near the cooling component. The sealing gasket and the sealing gasket are located at opposite ends of the cooling component.

[0015] The above technical solution enhances the sealing performance of the connection between the cooling component and the fixed plate / fixed seat by using sealing gasket one and sealing gasket two, preventing coolant leakage from the connection and improving cooling efficiency.

[0016] Preferably, the connecting shaft is provided with blades on the inner surface of the air shut-off fan body, and the connecting shaft passes through the fixed plate, the air shut-off fan body and the cooling assembly.

[0017] Through the above technical solution and the design of the blades, the air inlet and outlet ports of the airlock body can be connected during use, and then the normal use of the entire airlock can be realized.

[0018] Compared with the prior art, this utility model provides a cooling and temperature-reducing type airlock fan, which has the following features:

[0019] Beneficial effects:

[0020] 1. In this cooling-type airlock, the coolant enters the inlet frame through the inlet pipe and flows into the first channel. Multiple channels are interconnected through the circulation channel, where the coolant circulates. Finally, the coolant circulates between two identical structural parts through the second channel. The design of the first channel, the circulation channel, and the second channel forms a circulation path for the coolant, allowing it to circulate fully within the cooling jacket, carrying away the heat dissipated by the airlock body and achieving rapid cooling.

[0021] 2. This cooling-type airlock fan enhances the sealing of the connection between the cooling components and the fixed plate and fixed seat through sealing gasket one and sealing gasket two, preventing coolant leakage from the connection and improving cooling efficiency. Through the design of two connecting frames, connecting rods and fixed plates, the connecting shaft can achieve natural heat dissipation between the two connecting frames and fixed plates. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 3 ;

[0025] Figure 4 This is a schematic diagram of the cross-sectional structure of the present invention. Figure 1 ;

[0026] Figure 5 This is a schematic diagram of the cross-sectional structure of the present invention. Figure 2 ;

[0027] Figure 6 This is a schematic diagram showing the disassembled structure of sealing gasket one and sealing gasket two of this utility model;

[0028] Figure 7 This is a cross-sectional structural diagram of the cooling component of this utility model.

[0029] The components include: 1. Shutter body; 2. Air inlet port; 3. Air outlet port; 4. Connecting frame; 5. Connecting rod; 6. Fixing plate; 7. Connecting shaft; 8. Cooling assembly; 801. Cooling jacket; 802. Connecting groove; 803. Liquid inlet pipe; 804. Liquid inlet frame; 805. Through groove one; 806. Circulation groove; 807. Through groove two; 9. Fixing base; 10. Drive motor; 11. Blades; 12. Sealing gasket one; 13. Sealing gasket two. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example 1: As Figure 1-7 As shown, the present invention provides a cooling type airlock fan, including an airlock fan body 1 and an air inlet port 2 and an air outlet port 3 located at the upper and lower ends of the airlock fan body 1 and communicating with each other. A connecting frame 4 is fixedly installed at one end of the airlock fan body 1 away from the center line. A connecting rod 5 is fixedly installed at the other end of the connecting frame 4 away from the airlock fan body 1. A fixing plate 6 is fixedly installed at the other end of the connecting rod 5 away from the connecting frame 4. A connecting shaft 7 is rotatably installed at one end of the fixing plate 6 near the center line. A cooling component 8, a fixing seat 9 and a drive motor 10 are sequentially arranged at the other end of the connecting shaft 7 away from the airlock fan body 1. The output shaft of the drive motor 10 is fixedly installed with the connecting shaft 7.

[0032] Specifically, the cooling assembly 8 includes a cooling jacket 801. The cooling jacket 801 has a connecting groove 802 extending from one end of the airlock body 1 to the drive motor 10. The diameter of the connecting groove 802 is larger than the diameter of the connecting rod 5. The two ends of the cooling jacket 801 are fixedly installed to the fixed plate 6 and the fixed seat 9 through flanges. The advantage is that when installing the cooling assembly 8, the connecting groove 802 of the cooling jacket 801 is first aligned with the connecting rod 5, and then it is inserted from one end so that the cooling jacket 801 is located between the fixed plate 6 and the fixed seat 9. Then, the flanges at both ends are used to fix it to the fixed plate 6 and the fixed seat 9 respectively. Subsequently, the end of the connecting rod 5 located in the cooling jacket 801 can be cooled.

[0033] Specifically, the cooling jacket 801 is provided with an inlet pipe 803 from the inside to the outside. An inlet frame 804, which communicates with the inlet pipe 803, is fixedly installed at one end of the inlet pipe 803 near the cooling jacket 801. The advantage is that the low temperature coolant can be transported to the inlet frame 804 through the inlet pipe 803. The inlet frame 804 communicates with the inlet pipe 803 and is close to the cooling jacket 801, which can make the coolant evenly distributed near the cooling jacket 801. This allows for subsequent circulating cooling in the cooling jacket 801. The low temperature of the coolant can be used to reduce the temperature of the blower body 1, preventing the blower temperature from becoming too high due to frictional heat generated during material conveying.

[0034] Specifically, the inner surface of the cooling jacket 801 is provided with a first through groove 805, a circulation groove 806, and a second through groove 807. Multiple identical first through grooves 805 are provided, and these multiple first through grooves 805 are interconnected through the circulation groove 806. Two identical connecting grooves 802, inlet pipes 803, inlet frames 804, and first through grooves 805 are provided, and the two connecting grooves 802, inlet pipes 803, inlet frames 804, and first through grooves 805 are interconnected through the second through groove 807. The advantage is that the coolant flows from the inlet pipe 803... After entering the inlet box 804, the coolant flows into the first channel 805. Multiple channels 805 are interconnected through the circulation channel 806, in which the coolant circulates. Finally, the coolant circulates between two identical structural parts through the second channel 807. The design of the first channel 805, the circulation channel 806, and the second channel 807 forms a circulation path for the coolant, allowing the coolant to circulate fully within the cooling jacket 801, carrying away the heat dissipated by the blower body 1, thus achieving rapid cooling.

[0035] Example 2: Figure 2-7 As shown, this is an improvement on the previous embodiment.

[0036] Specifically, there are two identical connecting frames 4, connecting rods 5, and fixing plates 6. The two connecting frames 4, connecting rods 5, and fixing plates 6 are symmetrically distributed about the center line of the airlock body 1. The advantage is that the design of two connecting frames 4, connecting rods 5, and fixing plates 6 can avoid the airlock body 1 from tilting or shaking due to unilateral force, thus enhancing the stability of equipment operation. In addition, the connecting shaft 7 located between the two connecting frames 4 and fixing plates 6 can achieve natural heat dissipation.

[0037] Specifically, a sealing gasket 12 is provided at the end of the fixed plate 6 away from the airlock body 1, and a sealing gasket 23 is provided at the end of the fixed seat 9 near the cooling component 8. The sealing gasket 12 and the sealing gasket 23 are located at the two ends of the cooling component 8, respectively. The advantage is that the sealing of the connection between the cooling component 8 and the fixed plate 6 and the fixed seat 9 can be enhanced by the sealing gasket 12 and the sealing gasket 23, which can prevent the coolant from leaking from the connection and improve the cooling efficiency.

[0038] Specifically, the connecting shaft 7 is provided with blades 11 on the inner surface of the airlock body 1. The connecting shaft 7 passes through the fixed plate 6, the airlock body 1 and the cooling component 8. The advantage is that, through the design of the blades 11, it can be connected through the air inlet port 2 and the air outlet port 3 of the airlock body 1 during use, and then the normal use of the entire airlock can be realized.

[0039] Working Principle: During use, when installing the cooling assembly 8, first align the connecting groove 802 of the cooling jacket 801 with the connecting rod 5 and insert it from one end, so that the cooling jacket 801 is located between the fixed plate 6 and the fixed seat 9. Then, use the flanges at both ends to fix it to the fixed plate 6 and the fixed seat 9 respectively. Subsequently, the end of the connecting rod 5 located in the cooling jacket 801 can be cooled. The low-temperature coolant can be transported to the inlet frame 804 through the inlet pipe 803. The inlet frame 804 is interconnected with the inlet pipe 803 and is close to the cooling jacket 801, which can make the coolant evenly distributed near the cooling jacket 801. This allows for subsequent circulation cooling within the cooling jacket 801. The low temperature of the coolant can be used to reduce the temperature of the airlock body 1, preventing the airlock temperature from becoming too high due to frictional heat generated by material conveying. After the coolant enters the inlet frame 804 from the inlet pipe 803, it flows into the through groove 805. Multiple through grooves 805 are interconnected through the circulation groove 806, in which the coolant circulates. The coolant circulates between the two identical structural parts through the second through-slot 807. The design of the first through-slot 805, the circulation slot 806, and the second through-slot 807 forms a circulation path for the coolant, allowing it to circulate fully within the cooling jacket 801 and carry away the heat dissipated by the blower body 1, achieving rapid cooling. The design of the two connecting brackets 4, the connecting rod 5, and the fixed plate 6 prevents the blower body 1 from tilting or shaking due to unilateral force, enhancing the stability of the equipment operation. It also allows the connecting shaft 7 located between the two connecting brackets 4 and the fixed plate 6 to achieve natural heat dissipation. The sealing gaskets 12 and 13 enhance the sealing of the connection between the cooling component 8 and the fixed plate 6 and the fixed seat 9, preventing coolant leakage from the connection and improving cooling efficiency. The blades 11 allow connection through the air inlet port 2 and the air outlet port 3 of the blower body 1 during use, enabling the normal operation of the entire blower.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cooling and temperature-reducing type airlock fan, comprising an airlock fan body (1) and an air inlet port (2) and an air outlet port (3) located at the upper and lower ends of the airlock fan body (1) and communicating with each other, characterized in that: A connecting frame (4) is fixedly installed at one end of the air shut-off fan body (1) away from the center line. A connecting rod (5) is fixedly installed at the other end of the connecting frame (4) away from the air shut-off fan body (1). A fixed plate (6) is fixedly installed at the other end of the connecting rod (5) away from the connecting frame (4). A connecting shaft (7) is rotatably installed at one end of the fixed plate (6) near the center line. A cooling component (8), a fixed seat (9), and a drive motor (10) are sequentially arranged at the other end of the connecting shaft (7) away from the air shut-off fan body (1). The output shaft of the drive motor (10) is fixedly installed with the connecting shaft (7).

2. The cooling and temperature-reducing type airlock blower according to claim 1, characterized in that: The cooling assembly (8) includes a cooling jacket (801). The cooling jacket (801) has a connecting groove (802) extending from the airlock body (1) to one end of the drive motor (10). The diameter of the connecting groove (802) is larger than the diameter of the connecting rod (5). The two ends of the cooling jacket (801) are fixedly installed to the fixing plate (6) and the fixing seat (9) through flanges.

3. A cooling and temperature-reducing type airlock blower according to claim 2, characterized in that: The cooling jacket (801) is provided with an inlet pipe (803) from the inside to the outside. An inlet frame (804) that communicates with the inlet pipe (803) is fixedly installed at one end of the inlet pipe (803) near the cooling jacket (801).

4. A cooling and temperature-reducing type airlock blower according to claim 3, characterized in that: The inner surface of the cooling jacket (801) is provided with a through groove 1 (805), a circulation groove (806) and a through groove 2 (807). Multiple through grooves 1 (805) are provided, and multiple through grooves 1 (805) are interconnected through the circulation groove (806). Two of the connecting groove (802), liquid inlet pipe (803), liquid inlet frame (804) and through groove 1 (805) are provided, and two of the connecting grooves (802), liquid inlet pipe (803), liquid inlet frame (804) and through groove 1 (805) are interconnected through through groove 2 (807).

5. A cooling and temperature-reducing type airlock blower according to claim 4, characterized in that: Two identical connecting frames (4), connecting rods (5) and fixing discs (6) are provided, and the two connecting frames (4), connecting rods (5) and fixing discs (6) are symmetrically distributed about the center line of the airlock body (1).

6. A cooling-type airlock blower according to claim 1, characterized in that: A sealing gasket one (12) is provided at the end of the fixed plate (6) away from the air shut-off fan body (1), and a sealing gasket two (13) is provided at the end of the fixed seat (9) near the cooling assembly (8). The sealing gasket one (12) and the sealing gasket two (13) are located at the two ends of the cooling assembly (8), respectively.

7. A cooling-type airlock blower according to claim 1, characterized in that: The connecting shaft (7) is located on the inner surface of the air shut-off fan body (1) and is provided with blades (11). The connecting shaft (7) passes through the fixed plate (6), the air shut-off fan body (1) and the cooling assembly (8).