A linkage steady pressure device of screw air compressor and air tank

Abstract

The utility model provides a kind of linkage pressure stabilizing device of screw air compressor and gas storage tank, comprising: protective shell;Connecting barrel, the connecting barrel is set to the inside of the protective shell, the top of the connecting barrel is fixedly installed with thread ring, the inside of the thread ring is threadedly connected with installation barrel.The utility model provides a kind of linkage pressure stabilizing device of screw air compressor and gas storage tank, by connecting barrel, fixed link, sliding rod, spring, piston plate, sealing ring, pressure relief barrel, pressure relief pipe and pressure sensor etc. Structure cooperation, when using, pressure sensor real-time monitoring air pressure in inlet pipe, dynamic regulation air compressor output power, respond to air pressure fluctuation, avoid gas storage tank pressure sudden change, guarantee downstream equipment gas stability;And when abnormal overpressure, gas pushes piston plate to move down, excess gas is discharged through pressure relief barrel and pressure relief pipe, forms effective pressure relief mechanism, prevents equipment overload, component aging and overpressure causes safety accident.

Description

Technical Field

[0001] This utility model relates to the field of air compression equipment technology, and in particular to a linkage pressure stabilizing device for a screw air compressor and an air storage tank. Background Technology

[0002] In the industrial production sector, screw air compressors, as core equipment for providing compressed air, often need to be used in conjunction with air tanks to ensure a continuous and stable supply of compressed air.

[0003] However, in actual operation, numerous problems affect the stability and safety of the air supply. On the one hand, the output air pressure of the screw air compressor is easily affected by factors such as fluctuations in intake volume, load changes, and equipment operating status. When these fluctuations are transmitted to the air tank, they can cause a sudden rise or fall in pressure within the tank. This directly prevents downstream air-consuming equipment from obtaining compressed air with stable pressure, thereby affecting the precision of the production process, reducing production efficiency, and potentially leading to substandard product quality. On the other hand, if the pressure in the air tank becomes too high for some reason (such as abnormal continuous air supply from the compressor or sudden cessation of air supply by the air-consuming equipment), and the existing system lacks a rapid and effective pressure relief mechanism, it may cause the equipment to operate under overload, accelerating the wear and aging of equipment components and shortening the equipment's service life. More seriously, excessively high pressure may exceed the safe tolerance range of the air tank, posing a potential hazard of explosions and other safety accidents, and seriously threatening the production environment and the personal safety of operators.

[0004] Therefore, it is necessary to provide a linkage pressure stabilizing device between the screw air compressor and the air tank to solve the above-mentioned technical problems. Utility Model Content

[0005] This invention provides a pressure stabilizing device that links a screw air compressor and an air tank, solving the problems of pressure fluctuations and lack of an effective pressure relief mechanism when the screw air compressor and air tank are linked.

[0006] To solve the above-mentioned technical problems, this utility model provides a linkage pressure stabilizing device for a screw air compressor and an air storage tank, comprising:

[0007] Protective casing;

[0008] A connecting cylinder is disposed on the inner side of the protective shell. A threaded ring is fixedly installed on the top of the connecting cylinder. An installation cylinder is threadedly connected to the inner side of the threaded ring. A fixing rod is fixedly installed inside the top of the installation cylinder. A sliding rod is slidably connected inside the bottom of the fixing rod. A piston plate is disposed at the bottom of the sliding rod. A sealing ring is fixedly installed on the outer side of the piston plate. A spring is sleeved on the outer side of the sliding rod. The top and bottom of the spring are fixedly installed on the bottom of the fixing rod and the outer side of the sliding rod, respectively. A pressure relief cylinder is fixedly installed at the bottom of the connecting cylinder. The pressure relief cylinder is disposed on the outer side of the sealing ring. Pressure relief pipes are fixedly installed on both sides of the pressure relief cylinder.

[0009] An air intake pipe is fixedly installed on one side of the connecting cylinder, and a pressure sensor is fixedly installed at the air intake end of the air intake pipe.

[0010] An air outlet pipe is fixedly installed on the other side of the connecting cylinder.

[0011] Preferably, the protective shell is rotatably connected to a door.

[0012] Preferably, a one-way valve is fixedly installed at the air inlet end of the pressure sensor, and a screw air compressor connector is fixedly installed at the air inlet end of the one-way valve.

[0013] Preferably, a gas storage tank connector is fixedly installed at the outlet end of the gas outlet pipe.

[0014] Preferably, a controller is fixedly installed on the inner side of the protective shell, and the controller is electrically connected to the pressure sensor.

[0015] Preferably, a baffle is fixedly installed at the bottom of the slide bar, a threaded rod is fixedly installed at the bottom of the baffle, and a nut is threadedly connected to the outer side of the threaded rod.

[0016] Preferably, the threaded rod is disposed inside the piston plate, and the top of the nut abuts against the bottom of the piston plate.

[0017] Compared with related technologies, the screw air compressor and air tank linkage pressure stabilizing device provided by this utility model has the following beneficial effects:

[0018] This utility model provides a linkage pressure stabilizing device for a screw air compressor and an air tank. Through the cooperation of a connecting cylinder, a fixed rod, a sliding rod, a spring, a piston plate, a sealing ring, a pressure relief cylinder, a pressure relief pipe, and a pressure sensor, the pressure sensor monitors the air pressure in the intake pipe in real time during use, dynamically adjusts the output power of the air compressor to cope with air pressure fluctuations, avoids sudden changes in the pressure of the air tank, and ensures stable air supply to downstream equipment. Furthermore, when there is abnormal overpressure, the gas pushes the piston plate downward, and the excess gas is discharged through the pressure relief cylinder and pressure relief pipe, forming an effective pressure relief mechanism to prevent equipment overload, component aging, and safety accidents caused by overpressure. Attached Figure Description

[0019] Figure 1 A schematic diagram of the structure of a first embodiment of a linkage pressure stabilizing device for a screw air compressor and an air storage tank provided by this utility model;

[0020] Figure 2 for Figure 1 The diagram shows the internal structure of the protective shell.

[0021] Figure 3 for Figure 1 The diagram shows a cross-sectional view of the connecting cylinder.

[0022] Figure 4 This is a schematic diagram of the second embodiment of a linkage pressure stabilizing device for a screw air compressor and an air storage tank provided by this utility model.

[0023] The following are the labels in the diagram: 1. Protective shell, 11. Door body, 2. Connecting cylinder, 21. Threaded ring, 22. Mounting cylinder, 23. Fixing rod, 24. Sliding rod, 25. Spring, 26. Piston plate, 27. Sealing ring, 28. Pressure relief cylinder, 29. Pressure relief pipe, 3. Air inlet pipe, 31. Pressure sensor, 32. One-way valve, 33. Splicing pipe, 4. Air outlet pipe, 5. Air tank connector, 6. Screw air compressor connector, 7. Controller, 8. Baffle, 9. Threaded rod, 91. Nut. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] First Embodiment

[0026] Please refer to the following: Figure 1 , Figure 2 , Figure 3 ,in, Figure 1 A schematic diagram of the structure of a first embodiment of a linkage pressure stabilizing device for a screw air compressor and an air storage tank provided by this utility model; Figure 2 for Figure 1 The diagram shows the internal structure of the protective shell. Figure 3 for Figure 1The diagram shows a cross-sectional view of the connecting cylinder.

[0027] A pressure stabilizing device for a screw air compressor and an air tank, comprising: a protective housing 1;

[0028] A connecting cylinder 2 is disposed on the inner side of the protective shell 1. A threaded ring 21 is fixedly installed on the top of the connecting cylinder 2. An installation cylinder 22 is threadedly connected to the inner side of the threaded ring 21. A fixing rod 23 is fixedly installed inside the top of the installation cylinder 22. A sliding rod 24 is slidably connected inside the bottom of the fixing rod 23. A piston plate 26 is disposed at the bottom of the sliding rod 24. A sealing ring 27 is fixedly installed on the outer side of the piston plate 26. A spring 25 is sleeved on the outer side of the sliding rod 24. The top and bottom of the spring 25 are fixedly installed on the bottom of the fixing rod 23 and the outer side of the sliding rod 24, respectively. A pressure relief cylinder 28 is fixedly installed at the bottom of the connecting cylinder 2. The pressure relief cylinder 28 is disposed on the outer side of the sealing ring 27. Pressure relief pipes 29 are fixedly installed on both sides of the pressure relief cylinder 28.

[0029] An air intake pipe 3 is fixedly installed on one side of the connecting cylinder 2, and a pressure sensor 31 is fixedly installed at the air intake end of the air intake pipe 3.

[0030] Air outlet pipe 4 is fixedly installed on the other side of the connecting cylinder 2.

[0031] The protective shell 1 is rotatably connected to a door 11 on its front side.

[0032] A one-way valve 32 is fixedly installed at the air inlet end of the pressure sensor 31, and a screw air compressor connector 6 is fixedly installed at the air inlet end of the one-way valve 32.

[0033] The outlet end of the air outlet pipe 4 is fixedly installed with an air storage tank connector 5.

[0034] A controller 7 is fixedly installed on the inner side of the protective shell 1, and the controller 7 is electrically connected to the pressure sensor 31.

[0035] When it is necessary to inspect or replace internal components such as the fixing rod 23 and the sliding rod 24, they can be removed from the threaded ring 21 by rotating the mounting cylinder 22, which is convenient. The fixing rod 23 has a hollow structure, and the sliding rod 24 can slide freely along the axis inside the fixing rod 23. The piston plate 26 is made of wear-resistant rubber, and the sealing ring 27 is made of nitrile rubber. When the spring 25 is in its natural state, it can apply an upward pulling force to the sliding rod 24, keeping the piston plate 26 in its initial position. When the pressure inside the connecting cylinder 2 increases, the gas pressure pushes the piston plate 26 downward, and the spring 25 is stretched and stores elastic potential energy. When the pressure returns to normal, the elastic potential energy of the spring 25 is released, pulling the piston plate 26 back to its original position.

[0036] The one-way valve 32 is a spring-loaded one-way valve. Its internal valve core is closed under the action of spring force. When the compressed air pressure output by the screw air compressor is greater than the opening pressure of the one-way valve 32, the valve core is pushed open, and the compressed air can smoothly pass through the one-way valve 32 into the intake pipe 3. When the screw air compressor stops working or the pressure in the intake pipe 3 is higher than the pressure at the intake end, the valve core closes under the action of spring force and reverse pressure to prevent compressed air from flowing back from the intake pipe 3 to the screw air compressor, ensuring one-way flow of compressed air and avoiding pressure fluctuations and equipment damage caused by backflow.

[0037] The screw air compressor connector 6 is a standard threaded connector whose structure matches the air outlet of the screw air compressor, making it easy to quickly connect the device to the screw air compressor. The connector 6 has a sealing gasket installed inside to ensure the sealing of the connection and prevent compressed air leakage.

[0038] The gas tank connector 5 is also a standard threaded connector, and its specifications match the gas tank inlet.

[0039] The controller 7 is a PLC, which contains a central processing unit, memory, input / output interfaces, and other components. It can process and analyze the pressure signal transmitted by the pressure sensor 31 according to a preset program. The controller 7 is electrically connected to the pressure sensor 31 through a shielded cable. The controller 7 also communicates with the control system of the screw air compressor. When the pressure sensor 31 detects that the pressure in the intake pipe 3 is higher than the set upper limit, the controller 7 sends a control signal to the screw air compressor to reduce its output power and reduce the air supply. When the pressure is lower than the set lower limit, the controller 7 sends a signal to the screw air compressor to increase its output power and increase the air supply, thereby realizing dynamic regulation of compressed air pressure and maintaining pressure stability.

[0040] The working principle of the linkage pressure stabilizing device between the screw air compressor and the air tank provided by this utility model is as follows:

[0041] In use, the device is connected to the screw air compressor via screw air compressor connector 6 and to the air tank via air tank connector 5. The compressed air output by the screw air compressor enters the connecting cylinder 2 through one-way valve 32 and air inlet pipe 3, and then enters the air tank through air outlet pipe 4.

[0042] Pressure sensor 31 monitors the gas pressure in the intake pipe 3 in real time and transmits the pressure data to controller 7. When pressure sensor 31 detects that the pressure is higher than the set upper limit, controller 7 sends a signal to screw air compressor to reduce its output power and reduce the air supply. When the pressure is lower than the set lower limit, controller 7 controls screw air compressor to increase output power and increase air supply, thereby achieving dynamic pressure regulation and maintaining pressure stability.

[0043] If the pressure inside the connecting cylinder 2 suddenly increases due to abnormal conditions and exceeds the adjustment range of the controller 7, the gas pressure pushes the piston plate 26 to move downward. The piston plate 26 drives the slide rod 24 to slide inside the fixed rod 23, while stretching the spring 25. At this time, excess gas enters the pressure relief cylinder 28 and is discharged through the pressure relief pipes 29 on both sides, achieving rapid pressure relief. When the pressure returns to normal, the elastic force of the spring 25 pulls the piston plate 26 to reset, and the sealing ring 27 re-fits the inner wall of the pressure relief cylinder 28, stopping the pressure relief.

[0044] The protective shell 1 protects the internal components, and the door 11 can be opened to inspect and maintain the internal components; the one-way valve 32 prevents gas from flowing back from the connecting cylinder 2 to the screw air compressor, ensuring the one-way flow of gas.

[0045] Compared with related technologies, the screw air compressor and air tank linkage pressure stabilizing device provided by this utility model has the following beneficial effects:

[0046] Through the coordinated structure of connecting cylinder 2, fixing rod 23, sliding rod 24, spring 25, piston plate 26, sealing ring 27, pressure relief cylinder 28, pressure relief pipe 29, and pressure sensor 31, the pressure sensor 31 monitors the air pressure in the intake pipe 3 in real time during use, dynamically adjusts the output power of the air compressor, copes with air pressure fluctuations, avoids sudden changes in the pressure of the air storage tank, and ensures stable air supply to downstream equipment. Furthermore, when there is abnormal overpressure, the gas pushes the piston plate 26 downward, and the excess gas is discharged through the pressure relief cylinder 28 and pressure relief pipe 29, forming an effective pressure relief mechanism to prevent equipment overload, component aging, and safety accidents caused by overpressure.

[0047] Second Embodiment

[0048] Please refer to the following: Figure 4 Based on the first embodiment of this application providing a linkage pressure stabilizing device for a screw air compressor and an air tank, the second embodiment of this application proposes another linkage pressure stabilizing device for a screw air compressor and an air tank. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the individual implementation of the first embodiment.

[0049] Specifically, the second embodiment of this application provides a linkage pressure stabilizing device for a screw air compressor and an air tank, wherein a baffle 8 is fixedly installed at the bottom of the slide rod 24, a threaded rod 9 is fixedly installed at the bottom of the baffle 8, and a nut 91 is threadedly connected to the outer side of the threaded rod 9.

[0050] The threaded rod 9 is disposed inside the piston plate 26, and the top of the nut 91 abuts against the bottom of the piston plate 26.

[0051] The working principle of the linkage pressure stabilizing device between the screw air compressor and the air tank provided by this utility model is as follows:

[0052] When the sealing ring 27 needs to be replaced after prolonged use, the nut 91 can be unthreaded from the top of the threaded rod 9, and then the piston plate 26 and the sealing ring 27 can be replaced as a whole.

[0053] Compared with related technologies, the screw air compressor and air tank linkage pressure stabilizing device provided by this utility model has the following beneficial effects:

[0054] The piston plate 26 and the sealing ring 27 can be quickly disassembled and replaced by loosening the nut 91 when the sealing ring 27 needs to be replaced due to wear after long-term use, by cooperating with the baffle 8, threaded rod 9, and nut 91.

[0055] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A linkage pressure stabilizing device for a screw air compressor and an air storage tank, characterized in that, include: Protective casing; A connecting cylinder is disposed on the inner side of the protective shell. A threaded ring is fixedly installed on the top of the connecting cylinder. An installation cylinder is threadedly connected to the inner side of the threaded ring. A fixing rod is fixedly installed inside the top of the installation cylinder. A sliding rod is slidably connected inside the bottom of the fixing rod. A piston plate is disposed at the bottom of the sliding rod. A sealing ring is fixedly installed on the outer side of the piston plate. A spring is sleeved on the outer side of the sliding rod. The top and bottom of the spring are fixedly installed on the bottom of the fixing rod and the outer side of the sliding rod, respectively. A pressure relief cylinder is fixedly installed at the bottom of the connecting cylinder. The pressure relief cylinder is disposed on the outer side of the sealing ring. Pressure relief pipes are fixedly installed on both sides of the pressure relief cylinder. An air intake pipe is fixedly installed on one side of the connecting cylinder, and a pressure sensor is fixedly installed at the air intake end of the air intake pipe. An air outlet pipe is fixedly installed on the other side of the connecting cylinder.

2. The linkage pressure stabilizing device for a screw air compressor and an air storage tank according to claim 1, characterized in that, The protective shell is rotatably connected to a door on its front.

3. The linkage pressure stabilizing device for a screw air compressor and an air storage tank according to claim 1, characterized in that, A one-way valve is fixedly installed at the air inlet end of the pressure sensor, and a screw air compressor connector is fixedly installed at the air inlet end of the one-way valve.

4. The linkage pressure stabilizing device for a screw air compressor and an air storage tank according to claim 1, characterized in that, The outlet end of the gas outlet pipe is fixedly installed with a gas storage tank connector.

5. The linkage pressure stabilizing device for a screw air compressor and an air storage tank according to claim 1, characterized in that, A controller is fixedly installed on the inner side of the protective shell, and the controller is electrically connected to the pressure sensor.

6. The linkage pressure stabilizing device for a screw air compressor and an air storage tank according to claim 1, characterized in that, A baffle is fixedly installed at the bottom of the slide bar, and a threaded rod is fixedly installed at the bottom of the baffle. A nut is threadedly connected to the outer side of the threaded rod.

7. The linkage pressure stabilizing device for a screw air compressor and an air storage tank according to claim 6, characterized in that, The threaded rod is disposed inside the piston plate, and the top of the nut abuts against the bottom of the piston plate.

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