Top cover structure for open type screw machine

Abstract

The utility model provides a top cover structure for an open type screw machine, and belongs to the technical field of screw machines. The problems that an existing screw machine top cover is prone to dust deposition and inconvenient to disassemble, assemble, clean and maintain are solved. The top cover structure for the open type screw machine comprises a support and a cooling plate, a penetrating installation cavity is formed in the support, a metal net cover is arranged at the bottom of the installation cavity, a plurality of fixing supports are arranged on the metal net cover and the metal net cover, bolt fixing rings are arranged at the two ends of each fixing support, fans are arranged on the fixing supports, and fixing bolts are arranged on the fixing supports and the fans. The electric fan has the advantages that the electric fan is easy and convenient to disassemble and assemble, foreign matter winding is prevented, and dust deposition is prevented.

Description

Technical Field

[0001] This utility model belongs to the field of screw compressor technology, and relates to a top cover structure, particularly a top cover structure for an open screw compressor. Background Technology

[0002] A screw compressor is a high-efficiency positive displacement machine that uses meshing screw rotors to compress gas or liquid. It is widely used in industrial, refrigeration, and air compression systems. The top cover of a screw compressor is a component used to cover and protect the top opening of the screw compressor. It usually has the functions of heat dissipation, dust prevention, and easy maintenance. For further heat dissipation, it is usually combined with a dual cooling system of split cooling and water cooling to further increase cooling efficiency.

[0003] Traditional screw compressors have fan blades on top, which are driven by a rotating motor to create airflow. By increasing the airflow, the cooling efficiency is changed, which reduces the stability during operation. Traditional fan cooling allows foreign objects, dust, oil and other contaminants to enter the screw compressor through the gaps between the fan blades, resulting in reduced working efficiency. Therefore, it is necessary to develop a dirt-proof top cover. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a top cover structure for a screw compressor that is easy to clean and provides dual heat dissipation.

[0005] The purpose of this utility model can be achieved through the following technical solution: A top cover structure for an open screw compressor, characterized in that it includes a bracket and a cooling plate, the bracket has a through mounting cavity, the bottom of the mounting cavity has a metal mesh cover, the metal mesh cover has several fixed brackets, both ends of the fixed brackets have bolt fixing rings, the fixed brackets have fans, both the fixed brackets and the fans have fixing bolts, the fixed brackets also have cable fixing clips, and the fans have connecting cables.

[0006] In the above-mentioned open screw compressor top cover structure, the bracket is provided with a limiting step, the cooling plate is provided with a support foot, the support foot is fixed on the limiting step, the cooling plate is provided with a plurality of cooling pipes, the cooling pipes are provided with detachable connecting U-tubes, the cooling pipes and the connecting U-tubes are combined to form a heat dissipation water channel, and external pipes are provided at both ends of the heat dissipation water channel.

[0007] In the above-mentioned open screw compressor top cover structure, the bottom of the cooling plate is provided with a corrugated part, and the open ends of the corrugated part abut against the limiting step.

[0008] In the above-mentioned open screw compressor top cover structure, the bracket is provided with a fan guard plate.

[0009] Compared with existing technologies, this open screw compressor uses a top cover structure that allows airflow to enter the interior along both sides of the cooling plate through corrugated sections and limiting steps. This reduces the entry of foreign objects and prevents dust from directly sticking to the fan when it settles. At the same time, the corrugated sections also increase the contact area between the cooling plate and the air, further improving the heat dissipation efficiency. The through-type cooling pipes facilitate subsequent cleaning and maintenance. The fixed bracket secures the fan and the metal mesh cover, and the fan can be removed at the same time when the metal mesh cover is removed for maintenance. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the bottom structure of the top cover for this open screw compressor.

[0011] Figure 2 This is a schematic diagram of the top structure of the top cover for this open screw compressor.

[0012] Figure 3 This is a schematic diagram of the top cover structure support for this open screw compressor.

[0013] Figure 4 This is a partial cross-sectional structural diagram of the top cover structure for this open screw compressor.

[0014] In the diagram, 1. Connecting U-tube; 2. Bolt retaining ring; 3. Cable clamp; 4. Connecting cable; 5. Fixing bracket; 6. Metal mesh cover; 7. Fixing bolt; 8. External pipe; 9. Cooling pipe; 10. Bracket; 11. Support foot; 12. Cooling plate; 13. Mounting cavity; 14. Limiting step; 15. Fan; 16. Fan guard plate; 17. Corrugated section. Detailed Implementation

[0015] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0016] like Figure 1 , 2As shown in Figures 3 and 4, the top cover structure of this open screw compressor includes a bracket 10 and a cooling plate 12. The bracket 10 has a through mounting cavity 13, and a metal mesh cover 6 is provided at the bottom of the mounting cavity 13. The metal mesh cover 6 has several fixed brackets 5, and each fixed bracket 5 has a bolt fixing ring 2 at both ends. A fan 15 is provided on the fixed bracket 5. Both the fixed bracket 10 and the fan 15 are provided with fixing bolts 7. The fixed bracket 5 is also provided with a cable fixing clip 3. A connecting cable 4 is provided on the fan 15. During installation, the fan 15 is first connected to the metal mesh cover 6, and then the metal mesh cover 6 is fixed to the bracket 10 with bolts to complete the installation. The cooling fan 15 blows air downward to increase the airflow speed. The fast airflow passes around the cooling plate 12 to increase the heat dissipation efficiency of the cooling plate. The metal mesh cover 6 can prevent personnel from accidentally touching the fan blades and also support the fan 15.

[0017] Preferably, the bracket 10 is provided with a limiting step 14, and the cooling plate 12 is provided with a support foot 11. The support foot 11 is fixed to the limiting step 14. The cooling plate 12 is provided with a plurality of cooling pipes 9, and a detachable connecting U-tube 1 is provided between the cooling pipes 9. The cooling pipes 9 and the connecting U-tube 1 form a heat dissipation water channel. External pipes 8 are provided at both ends of the heat dissipation water channel. Water flows into the cooling pipes 9 through the external pipes 8 and makes full contact with the cooling plate 12 through the heat dissipation water channel. The cooling plate 12 increases the air contact area, thereby reducing the water temperature. The through cooling pipes 9 are easy to clean during subsequent maintenance to prevent scale and other substances from sticking and reducing the flow rate and cooling rate. The rubber connecting U-tube 1 is easy to disassemble, maintain and install.

[0018] Preferably, the bottom of the cooling plate 12 is provided with a corrugated part 17, and the open ends of both ends of the corrugated part 17 abut against the limiting step 14. The corrugated part 17 increases the contact area between the cooling plate 12 and the air. The corrugated part 17 is engaged and abuts against the limiting step 14. The air at the top moves laterally along the corrugated part 17 and then enters the bracket 10. This reduces the entry of foreign objects and ensures airflow. The top is vertically downward without a direct inlet, which also prevents dust from entering the interior when it settles.

[0019] Preferably, the bracket 10 is provided with a fan guard plate 16. The fan guard plate 16 enables the fan 15 to more concentratedly disturb the airflow, making the airflow speed faster, and also prevents foreign objects entering along the corrugated part 17 from contacting the fan 15.

[0020] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0021] Although this document frequently uses terms such as connecting U-tube 1, bolt fixing ring 2, cable fixing clamp 3, connecting cable 4, fixing bracket 5, metal mesh cover 6, fixing bolt 7, outer pipe 8, cooling pipe 9, bracket 10, support foot 11, cooling plate 12, mounting cavity 13, limiting step 14, fan 15, fan guard plate 16, and corrugated part 17, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A top cover structure for an open-type screw compressor, characterized in that, Includes a bracket (10) and a cooling plate (12). The bracket (10) has a through mounting cavity (13). The bottom of the mounting cavity (13) is provided with a metal mesh cover (6). The metal mesh cover (6) is provided with several fixed brackets (5). Both ends of the fixed brackets (5) are provided with bolt fixing rings (2). The fixed brackets (5) are provided with a fan (15). Both the fixed brackets (5) and the fan (15) are provided with fixing bolts (7). The fixed brackets (5) are also provided with cable fixing clips (3). The fan (15) is provided with connecting cables (4).

2. The top cover structure for an open-type screw compressor according to claim 1, characterized in that, The bracket (10) is provided with a limiting step (14), the cooling plate (12) is provided with a support foot (11), the support foot (11) is fixed on the limiting step (14), the cooling plate (12) is provided with a plurality of cooling pipes (9), the cooling pipes (9) are provided with a detachable connecting U pipe (1), the cooling pipes (9) and the connecting U pipe (1) form a heat dissipation water channel, and external pipes (8) are provided at both ends of the heat dissipation water channel.

3. The top cover structure for an open-type screw compressor according to claim 1, characterized in that, The bottom of the cooling plate (12) is provided with a corrugated part (17), and the open ends of both ends of the corrugated part (17) abut against the limiting step (14).

4. The top cover structure for an open-type screw compressor according to claim 1, characterized in that, The bracket (10) is provided with a fan guard plate (16).

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