Exhaust structure of screw compressor

Abstract

The utility model relates to the technical field of screw compressors, and discloses a screw compressor exhaust structure which comprises a compressor body and a conveying pipe arranged on one side of the compressor body, conical barrels are installed on the two sides of the conveying pipe respectively, and a connecting pipe is installed on one side of one conical barrel. When compressed gas is conveyed to a connecting pipe, a conical barrel, a conveying pipe and an exhaust pipe from the interior of a compressor body, when the internal pressure of the conveying pipe is too large, a piston block can be pushed to move, parameters such as airflow pressure and flow in an adjusting pipe can change, and a gas sensor detects that the state of the gas passing through the adjusting pipe is abnormal; the external equipment control display can give an early warning, and the interior of the adjusting pipe can play a role in buffering flow of gas, so that a worker can conveniently carry out first-aid repair operation, the state of the gas is effectively detected and controlled, and the problem that a compressor and a pipeline are damaged due to the fact that the gas conveying amount is too large or a screw rod and a star wheel are abraded is solved; and the safety and the stability of the compressor are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of screw compressors, in particular to an exhaust structure of a screw compressor. Background Art

[0002] A screw compressor is a positive displacement compressor. Its core working principle relies on the yin and yang rotors that mesh with each other in parallel inside the casing. When these rotors rotate inside the casing, the tooth volume between them changes, thereby achieving the suction, compression and discharge of gas. Screw compressors are mainly divided into two types: single-screw compressors and twin-screw compressors.

[0003] In the authorized patent document with the announcement number CN216842218U, a screw compressor is disclosed, including a compressor housing, a head connected to one side of the compressor housing, a seat one and a seat two are respectively arranged on both sides of the compressor housing, and a rotor group is rotatably connected between the seat one and the seat two through a bearing; a cylinder body is arranged between the seat one and the seat two in the compressor housing, and an air outlet is processed under the cylinder body; a sealing plate is installed in the head; an impeller is rotatably arranged between the sealing plate and the seat one; the air outlet is connected to the bottom of the impeller. Compared with the prior art, a screw compressor utilizes the rotation of the impeller in the compressor to separate oil and gas, reduces the oil and gas separation cylinder, reduces the manufacturing cost, and reduces the installation space.

[0004] Traditional screw compressors are equipped with exhaust pipes to exhaust the compressed gas during use. However, during the use of screw compressors, as the screw and star wheel wear, the gas delivery may be large, causing the gas delivered by the delivery pipe to exceed the threshold, thereby causing damage to the compressor and pipeline. Utility Model Content

[0005] The purpose of the utility model is to provide an exhaust structure for a screw compressor, which solves the problem that a traditional screw compressor is provided with an exhaust pipe to exhaust the compressed gas during use, and the screw compressor may be transported in large quantities due to the wear of the screw and the star wheel, thereby causing the gas transported by the transport pipe to exceed the threshold value, thereby causing damage to the compressor and the pipeline.

[0006] An embodiment of the present application provides an exhaust structure of a screw compressor, comprising a compressor body and a delivery pipe arranged on one side of the compressor body, wherein conical cylinders are respectively installed on both sides of the delivery pipe, wherein a connecting pipe is installed on one side of one of the conical cylinders, and an exhaust pipe is installed on one side of the other conical cylinder, an adjusting pipe is installed on one side of the middle of the delivery pipe, a first spring is installed on the inner wall of the adjusting pipe, a piston block is installed on the side of the first spring away from the inner wall of the adjusting pipe, the piston block is slidably connected to the inner wall of the adjusting pipe, the cross section of the piston block is in contact with the inner wall of the adjusting pipe, and a gas sensor is installed on the side of the adjusting pipe away from the delivery pipe.

[0007] By adopting the above technical solution, when compressed gas is transported from the inside of the compressor body to the connecting pipe, the tapered cylinder, the delivery pipe and the exhaust pipe, when the pressure inside the delivery pipe is too high, the piston block will be pushed to move, and parameters such as the air flow pressure and flow rate inside the regulating pipe will change, so that the gas sensor detects that the state of the gas passing through the regulating pipe is abnormal, and the external device control display will issue an early warning. The inside of the regulating pipe can buffer the flow of the gas, which is convenient for the staff to carry out emergency repairs, and the state of the gas can be effectively detected and controlled to prevent damage to the compressor and pipeline caused by excessive gas delivery or wear of the screw and star wheel, thereby improving the safety and stability of the compressor.

[0008] Optionally, the compressor body includes a shell, the shell is fixedly connected to the connecting pipe, and an air intake pipe is installed at the upper end of the shell away from the connecting pipe.

[0009] By adopting the above technical solution, the shell can fix the connecting pipe and the air intake pipe, and the air intake pipe can transport gas to the inside of the shell.

[0010] Optionally, a motor housing is installed on the side of the shell away from the connecting pipe, a driving motor is installed on the inner wall of the motor housing, a coupling is installed on the output shaft of the driving motor, and the coupling is rotatably mounted with the inner wall of the shell.

[0011] By adopting the above technical solution, the housing can fix the motor casing, the motor casing can fix the drive motor, and the drive motor can drive the coupling to rotate.

[0012] Optionally, the coupling is equipped with a rotating rod away from the output shaft of the driving motor, the outer wall of the rotating rod is fixedly connected to a screw rod, the outer wall of the rotating rod located on one side of the screw rod is rotatably equipped with a fixed disk, the fixed disk is fixedly connected to the inner wall of the shell, and a side surface of the fixed disk is provided with multiple groups of exhaust holes.

[0013] By adopting the above technical solution, the rotating rod can be driven to rotate when the coupling rotates, and the fixed plate can play a role of rotation support for the rotating rod, and the rotating rod can drive the screw rod to rotate.

[0014] Optionally, star wheels are rotatably mounted on the inner walls of the shell located on both sides of the screw, and two groups of star wheels are respectively engaged with the screw.

[0015] By adopting the above technical solution, the two star wheels can be driven to rotate by the screw, thereby compressing the gas.

[0016] Optionally, the inner walls of the two conical cylinders are respectively fixedly connected with second springs, the sides of the two second springs away from the inner wall of the conical cylinder are respectively fixedly connected with piston plates, and the side walls of the two piston plates are respectively slidably connected to the inner wall of the conical cylinder.

[0017] By adopting the above technical solution, the second spring can exert tension and compression on the piston plate, and can push the piston plate to move during gas delivery, thereby regulating the delivery of gas inside the delivery pipe, and the second spring can reset the piston plate.

[0018] Optionally, the tension of the first spring is greater than the tension of the two second springs.

[0019] By adopting the above technical solution, the tension of the first spring is greater than the tension of the second spring, so that the different air pressures inside the delivery pipe cause different extrusions on the first spring and the second spring.

[0020] Optionally, outer walls of the piston plate and the piston block are respectively made of rubber material.

[0021] By adopting the above technical solution, the outer walls of the piston plate and the piston block are respectively set to rubber materials, which can play a role in sealing the delivery pipe and the regulating pipe.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] The technical solution of the present application is to transport compressed gas from the inside of the compressor body to the connecting pipe, tapered cylinder, delivery pipe and exhaust pipe. When the pressure inside the delivery pipe is too high, the piston block will be pushed to move, and parameters such as the air flow pressure and flow rate inside the regulating pipe will change. As a result, the gas sensor detects that the state of the gas passing through the regulating pipe is abnormal, and the external device control display will issue an early warning. The inside of the regulating pipe can buffer the flow of the gas, making it convenient for staff to carry out emergency repairs, so as to effectively detect and control the state of the gas, prevent damage to the compressor and pipeline caused by excessive gas delivery or wear of the screw and star wheel, and improve the safety and stability of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0025] Figure 1 It is a front view schematic diagram of an exhaust structure of a screw compressor of the utility model;

[0026] Figure 2 It is a top view of a partial cross-sectional view of a delivery pipe of a screw compressor exhaust structure of the utility model;

[0027] Figure 3 It is a front view schematic diagram of a screw of an exhaust structure of a screw compressor of the utility model;

[0028] Figure 4 It is a left side schematic diagram of a fixed disk of a screw compressor exhaust structure of the utility model.

[0029] In the figure: 1. compressor body; 2. delivery pipe; 3. conical cylinder; 4. regulating pipe; 5. connecting pipe; 6. exhaust pipe; 7. piston block; 8. first spring; 9. gas sensor; 10. second spring; 11. piston plate; 12. intake pipe; 13. motor housing; 14. driving motor; 15. coupling; 16. rotating rod; 17. screw; 18. star wheel; 19. fixed plate; 20. exhaust hole. DETAILED DESCRIPTION

[0030] See also Figure 1-4 The utility model provides a technical solution: an exhaust structure of a screw compressor, comprising a compressor body 1 and a delivery pipe 2 arranged on one side of the compressor body 1, tapered cylinders 3 are respectively installed on both sides of the delivery pipe 2, a connecting pipe 5 is installed on one side of one tapered cylinder 3, an exhaust pipe 6 is installed on one side of the other tapered cylinder 3, an adjusting pipe 4 is installed on one side of the middle of the delivery pipe 2, a first spring 8 is installed on the inner wall of the adjusting pipe 4, a piston block 7 is installed on the side of the first spring 8 away from the inner wall of the adjusting pipe 4, the piston block 7 is slidably connected to the inner wall of the adjusting pipe 4, the cross section of the piston block 7 is in contact with the inner wall of the adjusting pipe 4, a gas sensor 9 is installed on the side of the adjusting pipe 4 away from the delivery pipe 2, the inner walls of the two tapered cylinders 3 are respectively fixedly connected with second springs 10, the two second springs 10 are respectively fixedly connected with piston plates 11 on the side away from the inner wall of the tapered cylinder 3, and the side walls of the two piston plates 11 are respectively slidably connected to the inner wall of the tapered cylinder 3.

[0031] In the technical solution of the utility model, when compressed gas is transported from the inside of the compressor body 1 to the connecting pipe 5, the conical cylinder 3, the delivery pipe 2 and the exhaust pipe 6, when the internal pressure of the delivery pipe 2 is too large, the piston block 7 will be pushed to move, and the parameters such as the air flow pressure and flow rate inside the regulating pipe 4 will change, so that the gas sensor 9 detects that the state of the gas passing through the regulating pipe 4 is abnormal, and the external device control display will give an early warning. The inside of the regulating pipe 4 can buffer the flow of the gas, which is convenient for the staff to carry out emergency repairs, and can effectively detect and control the state of the gas, prevent the compressor and pipeline damage caused by excessive gas delivery or wear of the screw 17 and the star wheel 18, and improve the safety and stability of the compressor.

[0032] In addition, the second spring 10 can exert tension and compression on the piston plate 11, and can push the piston plate 11 to move during gas delivery, thereby regulating the delivery of gas inside the delivery pipe 2, and the second spring 10 can reset the piston plate 11.

[0033] In the technical solution of the utility model, if Figure 2 As shown, the tension of the first spring 8 is greater than the tension of the two second springs 10. By making the tension of the first spring 8 greater than the tension of the second spring 10, the different internal air pressures of the delivery pipe 2 cause different extrusions on the first spring 8 and the second spring 10. The outer walls of the piston plate 11 and the piston block 7 are respectively set to rubber materials. By making the outer walls of the piston plate 11 and the piston block 7 respectively set to rubber materials, the delivery pipe 2 and the regulating pipe 4 can be sealed.

[0034] In the technical solution of the utility model, if Figure 1 , Figure 3 and Figure 4 As shown, the compressor body 1 includes a shell, which is fixedly connected to the connecting pipe 5. An intake pipe 12 is installed at the upper end of the shell away from the connecting pipe 5. The shell can fix the connecting pipe 5 and the intake pipe 12, and the intake pipe 12 can transport gas to the inside of the shell. A motor shell 13 is installed on the side of the shell away from the connecting pipe 5. A drive motor 14 is installed on the inner wall of the motor shell 13. A coupling 15 is installed on the output shaft of the drive motor 14. The coupling 15 is rotatably installed with the inner wall of the shell. The shell can fix the motor shell 13, and the motor shell 13 can fix the drive motor 14, and the drive motor 14 can drive the coupling 15 to rotate.

[0035] The coupling 15 is installed with a rotating rod 16 away from the output shaft of the driving motor 14, and the outer wall of the rotating rod 16 is fixedly connected with a screw 17, and the outer wall of the rotating rod 16 located on one side of the screw 17 is rotatably installed with a fixed disk 19, which is fixedly connected to the inner wall of the shell, and a plurality of exhaust holes 20 are provided on one side of the fixed disk 19. When the coupling 15 is rotated, the rotating rod 16 can be driven to rotate, and the fixed disk 19 can provide rotational support for the rotating rod 16, and the rotating rod 16 can drive the screw 17 to rotate. The inner walls of the shell located on both sides of the screw 17 are respectively rotatably installed with star wheels 18, and the two sets of star wheels 18 are respectively meshed with the screw 17, and the two star wheels 18 can be driven to rotate through the screw 17, thereby compressing the gas.

[0036] When in use, first, the compressor body 1 is in standby state, the screw 17 and the star wheel 18 have not started to rotate, the delivery pipe 2, the tapered cylinder 3, the connecting pipe 5, the exhaust pipe 6 and other components have been installed and are in normal working condition, the piston block 7 in the regulating pipe 4 is in the initial position under the action of the first spring 8, the gas sensor 9 is installed on the side of the regulating pipe 4 away from the delivery pipe 2, ready to detect the gas state, let the driving motor 14 drive the coupling 15 to rotate, and the coupling 15 drives the rotating rod 16 and the screw 17 to rotate, the screw 17 and the star wheels 18 on both sides start to mesh and rotate, forming a closed volume change inside the compressor body 1, realizing gas suction, the sucked gas enters the compressor body 1 through the intake pipe 12, and is compressed, and the compressed gas enters the delivery pipe 2 through the exhaust hole 20 on the fixed disk 19, and the gas is delivered. The gas flows in the tube 2 and passes through two conical cylinders 3. The piston plate 11 in the conical cylinder 3 plays a role of buffering and stabilizing the airflow under the action of the second spring 10. The gas sensor 9 detects the state of the gas passing through the regulating tube 4 in real time, including parameters such as pressure and flow. If the gas state is normal, the piston block 7 remains in the initial position. If the gas sensor 9 detects that the gas pressure or flow exceeds the set threshold, the sensor sends a signal to the external device to control the display device, and the regulating tube 4 can serve as a gas delivery buffer area for the delivery pipe 2, reducing the possibility of damage to the pipeline and the compressor body 1. Through the above working process, the screw 17 compressor exhaust structure can effectively detect and control the state of the gas, prevent the compressor and pipeline damage caused by excessive gas delivery or wear of the screw 17 and the star wheel 18, and improve the safety and stability of the compressor.

Claims

1. A screw compressor exhaust structure, characterized in that: The invention comprises a compressor body (1) and a delivery pipe (2) arranged on one side of the compressor body (1), wherein conical cylinders (3) are respectively installed on both sides of the delivery pipe (2), wherein a connecting pipe (5) is installed on one side of one of the conical cylinders (3), and an exhaust pipe (6) is installed on one side of the other conical cylinder (3), and a regulating pipe (4) is installed on one side of the middle part of the delivery pipe (2), and a first spring (8) is installed on the inner wall of the regulating pipe (4), and a piston block (7) is installed on the side of the first spring (8) away from the inner wall of the regulating pipe (4), and the piston block (7) is slidably connected to the inner wall of the regulating pipe (4), and the cross section of the piston block (7) is in contact with the inner wall of the regulating pipe (4), and a gas sensor (9) is installed on the side of the regulating pipe (4) away from the delivery pipe (2).

2. A screw compressor exhaust structure according to claim 1, characterized in that: The compressor body (1) comprises a shell, the shell is fixedly connected to the connecting pipe (5), and an air intake pipe (12) is installed at the upper end of the shell away from the connecting pipe (5).

3. A screw compressor exhaust structure according to claim 2, characterized in that: A motor housing (13) is installed on the side of the housing away from the connecting pipe (5); a driving motor (14) is installed on the inner wall of the motor housing (13); a coupling (15) is installed on the output shaft of the driving motor (14); and the coupling (15) is rotatably mounted on the inner wall of the housing.

4. A screw compressor exhaust structure according to claim 3, characterized in that: The coupling (15) is provided with a rotating rod (16) away from the output shaft of the driving motor (14); the outer wall of the rotating rod (16) is fixedly connected with a screw rod (17); a fixed disk (19) is rotatably installed on the outer wall of the rotating rod (16) located on one side of the screw rod (17); the fixed disk (19) is fixedly connected to the inner wall of the shell, and a side surface of the fixed disk (19) is provided with a plurality of exhaust holes (20).

5. A screw compressor exhaust structure according to claim 4, characterized in that: Star wheels (18) are rotatably mounted on the inner walls of the housing located on both sides of the screw rod (17), and two groups of star wheels (18) are respectively meshed with the screw rod (17).

6. A screw compressor exhaust structure according to claim 1, characterized in that: The inner walls of the two conical cylinders (3) are respectively fixedly connected with a second spring (10), and the sides of the two second springs (10) away from the inner wall of the conical cylinder (3) are respectively fixedly connected with a piston plate (11), and the side walls of the two piston plates (11) are respectively slidably connected with the inner wall of the conical cylinder (3).

7. A screw compressor exhaust structure according to claim 6, characterized in that: The tension of the first spring (8) is greater than the tension of the two second springs (10).

8. A screw compressor exhaust structure according to claim 6, characterized in that: The outer walls of the piston plate (11) and the piston block (7) are respectively made of rubber material.

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