A vacuum pump working group instrument automation control system and control method

Abstract

The present invention discloses an automatic control system and control method for instruments of a vacuum pump working group, including: a main unit, which includes a control box and a support block fixedly connected to the lower surface of the control box; a buffer discharge unit, which includes a first pressure instrument fixedly connected to a first sealing pad at one end and a buffer tank fixedly connected to the lower surface of the first sealing pad; a rotary cooling unit, which includes a load-bearing block fixedly connected to the inner surface of the control box and a second sealing pad fixedly connected to the upper surface of the load-bearing block. The present invention first introduces gas into the interior of the equipment through an air inlet pipe, and then uses a cooling inlet pipe to inject cooling medium into the heat dissipation groove of the cooling tank, thereby reducing the impact of excessive temperature on it, and according to the different airflow flow frequencies, the equipment performs appropriate buffering according to the flow speed of different airflows, thereby preventing the internal gas of the vacuum pump from backflowing into the interior of the equipment, thereby improving the protection effect of the equipment.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum pump working group instrument automation control structure, and in particular to a vacuum pump working group instrument automation control system and a control method. Background Art

[0002] Vacuum pump working group instruments are measuring instruments used to monitor and control the performance and working status of vacuum pumps. These instruments can measure parameters such as vacuum degree, pressure, flow, temperature and liquid level in the vacuum pump, and transmit the measured data to the control system for analysis and processing. By using vacuum pump working group instruments, abnormal conditions in the operation of vacuum pumps can be discovered in time, such as excessive pressure, abnormal temperature, etc., so that corresponding measures can be taken for adjustment and maintenance to ensure the stable operation and performance of vacuum pumps. These instruments are widely used in industrial production, scientific research and laboratories, and are one of the important tools for realizing automatic control and monitoring of vacuum pumps.

[0003] Generally speaking, the working temperature of the vacuum pump in the vacuum pump working group instrument should be between 5 and 40°C. If the temperature is too high, the lubrication system and oil seal of the vacuum pump may be damaged, resulting in leakage and performance degradation, which may easily affect the working efficiency of the equipment. At the same time, the existing vacuum pump needs to buffer the gas during operation. When there is no buffer structure, when the vacuum pump stops working, the gas in the pump may quickly backflow into the pump, causing the lubricating oil or coolant in the pump to be contaminated, affecting the normal operation of the pump. When there is no buffer structure, the vacuum pump's pumping speed will become unstable, resulting in large fluctuations in the system pressure, affecting the working performance of the vacuum pump. When there is no buffer structure, the impact of gas flow and backflow of gas may cause damage or corrosion to the internal parts of the vacuum pump, affecting its service life. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the problems existing in the above-mentioned existing automatic control system and control method of vacuum pump working group instruments, the present invention is proposed.

[0006] Therefore, the purpose of the present invention is to provide an automatic control system and control method for a vacuum pump working group instrument, which is suitable for solving the vacuum pump in the vacuum pump working group instrument. Generally speaking, the operating temperature of the vacuum pump should be between 5 and 40°C. If the temperature is too high, the lubrication system and oil seal of the vacuum pump may be damaged, resulting in leakage and performance degradation, which may easily affect the working efficiency of the equipment. At the same time, the existing vacuum pump needs to buffer the gas during operation. When there is no buffer structure, when the vacuum pump stops working, the gas in the pump may quickly backflow into the pump, causing the lubricating oil or coolant in the pump to be contaminated, affecting the normal operation of the pump. When there is no buffer structure, the vacuum pump's pumping speed will become unstable, resulting in large fluctuations in the system pressure, affecting the working performance of the vacuum pump. When there is no buffer structure, the impact of gas flow and backflow of gas may cause damage or corrosion to the internal parts of the vacuum pump, affecting its service life.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: an automatic control system for a vacuum pump working group instrument, wherein the automatic control system uses an automatic control device, characterized in that the automatic control device comprises:

[0008] The main unit includes a control box and a support block fixedly connected to the lower surface of the control box, a touch screen controller is fixedly connected to one side of the control box, and a first pressure meter is connected through the upper surface of the control box;

[0009] A buffer discharge unit, comprising a first pressure instrument having a first sealing pad fixedly connected to one end thereof and a buffer tank fixedly connected to the lower surface of the first sealing pad, a load-bearing plate fixedly connected to the inner surface of the buffer tank, a limiting ring fixedly connected to the inner surface of the buffer tank, a load-bearing ring fixedly connected to the upper surface of the limiting ring, a linkage shaft rotatably connected in the load-bearing plate, and a fan blade fixedly connected to the outer surface of one end of the linkage shaft;

[0010] A rotary cooling unit comprises a load-bearing block fixedly connected to the inner surface of a control box and a second sealing pad fixedly connected to the upper surface of the load-bearing block, the upper surface of the second sealing pad fixedly connected to a cooling tank, a spiral plate fixedly connected inside the cooling tank, sealing plates fixedly connected at both ends of the spiral plate, and a first filter plate fixedly connected inside the cooling tank.

[0011] As a preferred solution of an instrument automation control system for a vacuum pump working group described in the present invention, wherein: one side of the control box is fixedly connected to a box door through a hinge, one side of the box door is fixedly connected to a handle, an exhaust pipe is connected through the upper surface of the control box, the number of the exhaust pipes is two groups, and the two groups of exhaust pipes are symmetrical about the center of the control box, and the two groups of exhaust pipes are fixedly connected to one end of the vacuum pump air inlet through a manifold.

[0012] As a preferred solution of the vacuum pump working group instrument automation control system described in the present invention, wherein: the outer surface of the linkage shaft is fixedly connected to a limit block, and the lower surface of the limit block is rotatably connected to the upper surface of the load-bearing plate, one end of the linkage shaft is fixedly connected to a movable gear, a sliding groove is hollowed out in the movable gear, and a retractable spring is fixedly connected in the sliding groove, and one end of the retractable spring is fixedly connected to one side of the movable tooth block.

[0013] As a preferred scheme of an instrument automation control system for a vacuum pump working group described in the present invention, wherein: a cooling groove is hollowed out in the spiral plate, a heat dissipation groove is hollowed out in the cooling tank, and the heat dissipation groove and the cooling groove are interconnected, a cooling inlet pipe is fixedly connected to one side of the cooling tank, a cooling outlet pipe is fixedly connected to one side of the cooling tank, a reducer is fixedly connected to the upper surface of the cooling tank, a second electronic control valve is fixedly connected to the outer surface of the reducer, a buffer tank is fixedly connected to the upper surface of the reducer, a third electronic control valve is fixedly connected to the outer surface of the exhaust pipe, the first sealing pad and the second sealing pad are both hollowed out and connected with a third air groove, the outer surface of the cooling inlet pipe is fixedly connected to a fourth electronic control valve, the outer surface of the reducer is fixedly connected to an intercommunication pipe, the outer surface of the intercommunication pipe is fixedly connected to a fifth electronic control valve, and a spiral bin is provided in the cooling tank.

[0014] As a preferred solution of the instrument automation control system of a vacuum pump working group described in the present invention, wherein: a spring groove is hollowed out in the movable tooth block, limiting blocks are fixedly connected on both sides of the movable tooth block, the upper surface of the load-bearing plate is fixedly connected to a load-bearing rod, a rotating shaft is rotatably connected in the load-bearing rod, one end of the rotating shaft is fixedly connected to a first gear, the other end of the rotating shaft is fixedly connected to a second gear, one side of the second gear is meshed with a driving gear, one side of the driving gear is fixedly connected to a transmission shaft, and the outer surface of the transmission shaft is rotatably connected to a first receiving shaft.

[0015] As a preferred solution of the instrument automation control system of a vacuum pump working group described in the present invention, wherein: one end of the first connecting shaft is fixedly connected to the upper surface of the load-bearing plate, the upper surface of the load-bearing plate is fixedly connected with the second connecting shaft, the second connecting shaft is rotatably connected with a connecting shaft, the outer surface of the connecting shaft is respectively fixedly connected with a third gear and an adjusting gear, and the other end of the transmission shaft is fixedly connected with a secondary driving gear.

[0016] As a preferred solution of the instrument automation control system of a vacuum pump working group described in the present invention, wherein: the secondary driving gear is meshedly connected with the third gear on both sides, the load-bearing plate is fixedly connected with an extension plate on one side, the upper surface of the extension plate is fixedly connected with a limiting frame, a tooth plate is slidably connected in the limiting frame, both sides of the tooth plate are fixedly connected with protective blocks, one side of the tooth plate is meshedly connected with an adjusting gear, a lifting ring is placed on the upper surface of the limiting ring, and one end of the tooth plate passes through one side of the limiting ring.

[0017] As a preferred solution of the instrument automation control system of a vacuum pump working group described in the present invention, wherein: the upper surface of the lifting ring is fixedly connected to the L-shaped filter ring plate, the inner surface of the L-shaped filter ring plate is fixedly connected to the lifting block, the upper surface of the load-bearing ring is placed with the L-shaped filter ring plate, the load-bearing ring and the lifting block are respectively hollowed out to provide a first air groove and a second air groove, the buffer tank is fixedly connected with a second filter plate, the upper surface of the limiting ring is fixedly connected to a spring group, and the other end of the spring group is fixedly connected to the lower surface of the L-shaped filter ring plate.

[0018] As a preferred solution of the vacuum pump working group instrument automation control system described in the present invention, wherein: an air intake pipe is connected through the lower surface of the control box, a first electronic control valve is fixedly connected to the outer surface of the air intake pipe, cooling inlet pipes are connected through both sides of the control box, a second pressure instrument is fixedly connected to one side of the cooling tank, and one end of the second pressure instrument passes through one side of the control box.

[0019] A vacuum pump working group instrument automation control method, the automation control method is applicable to any of the above automation control systems, and the control method comprises the following steps:

[0020] Step 1: Open the first pressure meter, the second pressure meter and the first electronic control valve to allow gas to enter the equipment;

[0021] Step 2: Open the fourth electronic control valve to allow the cooling medium to enter the equipment, thereby cooling the gas;

[0022] Step 3: Open the second electronic control valve to allow the gas to enter the buffer tank, and use the fan blades to detect the gas flow speed, and then perform buffer discharge treatment on the gas according to different flow rates;

[0023] Step 4: When the airflow velocity is low, the centrifugal force generated by the movable gear is low due to the small rotation amplitude of the fan blades, and the movable tooth block inside the movable gear cannot be fully expanded. The L-shaped filter ring plate, the bearing ring and the internal holes and grooves of the lifting block cooperate with each other to allow the low-speed airflow to pass continuously;

[0024] Step 5: When the air flow rate is medium-high speed, since the gas flow rate is high at this time, the unfolded movable tooth block is meshed with the first gear, thereby driving the second gear at the other end of the rotating shaft to rotate, and the L-shaped filter ring plate and the lifting block are driven to perform synchronous lifting processing through the lifting ring, so that the lifting block and the first gas groove and the second gas groove inside the load-bearing ring are staggered, so that the gas is discharged rhythmically, and then the medium-high speed gas is buffered;

[0025] Step 6: Use the touch screen controller to detect the pressure difference between different pressure instruments, and adjust the valve opening degree according to the difference;

[0026] Step 7: Monitor the internal gas pressure in real time and control the equipment accordingly;

[0027] Step 8: When finished, gradually close the vacuum pump, valves and pressure gauge according to the pressure gauge value.

[0028] Beneficial effects of the present invention:

[0029] 1. First, the gas is introduced into the equipment through the air inlet pipe, and then the cooling medium is poured into the heat dissipation groove of the cooling tank through the cooling inlet pipe, and then further introduced into the cooling tank through the heat dissipation groove, so that the gas is fully in contact with the cooling tank and the spiral plate during the rising process, so that the gas is cooled during the rising process. Then, when the gas is directed to the vacuum pump, the cooled gas is used to cool the vacuum pump to prevent the vacuum pump from working for a long time and causing the temperature to rise, thereby reducing the impact of excessive temperature on it;

[0030] 2. According to the different airflow frequencies, the equipment can be properly buffered according to the flow speeds of different airflows, thereby preventing the gas inside the vacuum pump from flowing back into the equipment, thereby improving the protection effect of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0032] Figure 1 This is a schematic diagram of the overall structure of an automatic control system and control method for a vacuum pump working group instrument proposed by the present invention;

[0033] Figure 2 A schematic diagram of the internal structure of a control box of an automatic control system and control method for a vacuum pump working group instrument proposed by the present invention;

[0034] Figure 3This is a schematic diagram of the overall cross-sectional structure of a cooling tank and a buffer tank of an automatic control system and control method for a vacuum pump working group instrument proposed by the present invention;

[0035] Figure 4 A schematic diagram of the structure of a rotary cooling unit of an automatic control system and control method for a vacuum pump working group instrument proposed by the present invention;

[0036] Figure 5 This is a schematic diagram of the structure of a buffer discharge unit of an automatic control system and control method for a vacuum pump working group instrument proposed by the present invention;

[0037] Figure 6 A structural schematic diagram of a load-bearing plate of an automatic control system and control method for a vacuum pump working group instrument proposed by the present invention;

[0038] Figure 7 A schematic diagram of the limiting loop structure of an automatic control system and control method for a vacuum pump working group instrument proposed by the present invention;

[0039] Figure 8 A schematic diagram of the lifting block structure of an automatic control system and control method for a vacuum pump working group instrument proposed by the present invention;

[0040] Fig. 9 The present invention provides a method flow chart of an automatic control system and control method for a vacuum pump working group instrument.

[0041] Description of the drawings: 100, main unit; 101, control box; 102, touch screen controller; 103, support block; 104, air inlet pipe; 105, first pressure instrument; 106, exhaust pipe; 107, handle; 108, box door; 109, second pressure instrument; 110, first electronic control valve; 111, cooling inlet pipe; 200, buffer discharge unit; 201, third electronic control valve; 202, first sealing pad ; 203, buffer tank; 204, second filter plate; 205, L-shaped filter ring plate; 206, lifting ring; 207, limiting ring; 208, load-bearing plate; 209, limit block; 210, linkage shaft; 211, fan blade; 212, extension plate; 213, secondary gear; 214, third gear; 215, connecting shaft; 216, adjusting gear; 217, tooth plate; 218, rotating shaft; 219, load-bearing rod; 220, spring spring slot; 221, limiting block; 222, retractable spring; 223, protective block; 224, limiting frame; 225, spring group; 226, load-bearing ring; 227, lifting block; 228, first air slot; 229, second air slot; 230, second receiving shaft; 231, first gear; 232, second gear; 233, driving gear; 234, movable gear; 235, transmission shaft; 236, first receiving shaft; 23 7. Movable gear block; 300. Rotary cooling unit; 301. Load-bearing block; 302. Fourth electronic control valve; 303. Cooling tank; 304. Second sealing pad; 305. Intercommunication pipe; 306. Fifth electronic control valve; 307. Different diameter pipe; 308. Second electronic control valve; 309. First filter plate; 310. Cooling trough; 311. Spiral bin; 312. Sealing plate; 313. Third air trough; 314. Spiral plate. DETAILED DESCRIPTION

[0042] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0043] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0044] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is mutually exclusive with other embodiments, either individually or selectively.

[0045] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0046] Embodiment 1:

[0047] Reference Figure 1 - Fig. 9 , which is an embodiment of the present invention, provides an instrument automation control system and control method for a vacuum pump working group, including a main unit 100, a buffer discharge unit 200 and a rotary cooling unit 300.

[0048] The main unit 100 includes a control box 101 and a support block 103 fixedly connected to the lower surface of the control box 101. A touch screen controller 102 is fixedly connected to one side of the control box 101. A first pressure meter 105 is connected through the upper surface of the control box 101.

[0049] Secondly, the buffer discharge unit 200 includes a first pressure instrument 105, one end of which is fixedly connected to a first sealing pad 202 and a buffer tank 203 fixedly connected to the lower surface of the first sealing pad 202, a load-bearing plate 208 fixedly connected to the inner surface of the buffer tank 203, a limiting ring 207 fixedly connected to the inner surface of the buffer tank 203, a load-bearing ring 226 fixedly connected to the upper surface of the limiting ring 207, a linkage shaft 210 rotatably connected in the load-bearing plate 208, and a fan blade 211 fixedly connected to the outer surface of one end of the linkage shaft 210. When the gas flows to the buffer tank 203, the airflow movement drives the fan blade 211 to rotate, and then drives the linkage shaft 210 to rotate through the fan blade 211, so that the linkage shaft 210 drives the movable gear 234 to rotate;

[0050] Secondly, the rotary cooling unit 300 includes a load-bearing block 301 fixedly connected to the inner surface of the control box 101 and a second sealing pad 304 fixedly connected to the upper surface of the load-bearing block 301, the upper surface of the second sealing pad 304 is fixedly connected to a cooling tank 303, a spiral plate 314 is fixedly connected inside the cooling tank 303, sealing plates 312 are fixedly connected at both ends of the spiral plate 314, and a first filter plate 309 is fixedly connected inside the cooling tank 303.

[0051] Furthermore, a box door 108 is fixedly connected to one side of the control box 101 through a hinge, and a handle 107 is fixedly connected to one side of the box door 108. An exhaust pipe 106 is connected through the upper surface of the control box 101. There are two groups of exhaust pipes 106, and the two groups of exhaust pipes 106 are symmetrical about the center of the control box 101. The two groups of exhaust pipes 106 are fixedly connected to one end of the vacuum pump air inlet through a manifold.

[0052] Furthermore, a cooling groove 310 is hollowed out in the spiral plate 314, a heat dissipation groove is hollowed out in the cooling tank 303, and the heat dissipation groove and the cooling groove 310 are interconnected, a cooling inlet pipe 111 is fixedly connected to one side of the cooling tank 303, a cooling outlet pipe is fixedly connected to one side of the cooling tank 303, a reducing pipe 307 is fixedly connected to the upper surface of the cooling tank 303, a second electronic control valve 308 is fixedly connected to the outer surface of the reducing pipe 307, a buffer tank 203 is fixedly connected to the upper surface of the reducing pipe 307, a third electronic control valve 201 is fixedly connected to the outer surface of the exhaust pipe 106, the first sealing pad 202 and the second sealing pad 304 are both hollowed out and connected to the third gas groove 313, the outer surface of the cooling inlet pipe 111 is fixedly connected to the fourth electronic control valve 302, The outer surface of the reducer 307 is fixedly connected to an interconnecting pipe 305, and the outer surface of the interconnecting pipe 305 is fixedly connected to a fifth electronic control valve 306. A spiral bin 311 is arranged in the cooling tank 303. The reducer 307 has larger diameters at both ends, so that it can better withstand pressure and flow, while the small diameter in the middle can reduce the resistance of the pipeline and improve the gas transportation efficiency. The second electronic control valve 308 is used to control and process the gas passing through the reducer 307, so that when the second pressure meter 109 detects a certain pressure, the reducer 307 is opened through the second electronic control valve 308, and the gas quickly flows into the buffer tank 203. At the same time, the second pressure meter 109 is used to detect the internal pressure of the cooling tank 303 in real time, which is convenient for subsequent operations.

[0053] Furthermore, one end of the first supporting shaft 236 is fixedly connected to the upper surface of the load-bearing plate 208, and the upper surface of the load-bearing plate 208 is fixedly connected to the second supporting shaft 230. The second supporting shaft 230 is rotatably connected to the connecting shaft 215. The outer surface of the connecting shaft 215 is respectively fixedly connected to the third gear 214 and the adjusting gear 216. The other end of the transmission shaft 235 is fixedly connected to the secondary driving gear 213.

[0054] Further, both sides of the secondary driving gear 213 are meshedly connected with the third gear 214, one side of the bearing plate 208 is fixedly connected with the extension plate 212, the upper surface of the extension plate 212 is fixedly connected with the limiting frame 224, the limiting frame 224 is slidably connected with a tooth plate 217, both sides of the tooth plate 217 are fixedly connected with a protective block 223, one side of the tooth plate 217 is meshedly connected with an adjusting gear 216, the upper surface of the limiting ring 207 is placed and connected with a lifting ring 206, one end of the tooth plate 217 passes through one side of the limiting ring 207, and the tooth plate 217 is connected to the upper surface of the limiting ring 207. The first gas groove 228 and the second gas groove 229 are rhythmically interconnected by performing the lifting and lowering process, thereby slowly discharging the medium and high speed gas. At the same time, the fifth electronic control valve 306 is used to open the interconnecting pipe 305, so that the two groups of equipment are interconnected, so that the first pressure gauge 105 and the second pressure gauge 109 are used to detect the pressure at different positions respectively, so as to adjust the valve by the pressure change difference at different positions, thereby controlling the internal gas flow. When the equipment is finished working, the vacuum pump, valve and pressure gauge can be gradually closed according to the value of the pressure gauge.

[0055] Furthermore, the upper surface of the lifting ring 206 is fixedly connected to the L-shaped filter ring plate 205, the inner surface of the L-shaped filter ring plate 205 is fixedly connected to the lifting block 227, the L-shaped filter ring plate 205 is placed on the upper surface of the load-bearing ring 226, the load-bearing ring 226 and the lifting block 227 are respectively hollowed out to provide a first air groove 228 and a second air groove 229, the buffer tank 203 is fixedly connected to the second filter plate 204, the upper surface of the limiting ring 207 is fixedly connected to the spring group 225, and the other end of the spring group 225 is fixedly connected to the lower surface of the L-shaped filter ring plate 205.

[0056] Furthermore, an air intake pipe 104 is connected through the lower surface of the control box 101, and a first electronic control valve 110 is fixedly connected to the outer surface of the air intake pipe 104. Cooling inlet pipes 111 are connected through both sides of the control box 101. A second pressure instrument 109 is fixedly connected to one side of the cooling tank 303, and one end of the second pressure instrument 109 passes through one side of the control box 101. The air intake pipe 104 is used to introduce the gas into the cooling tank 303, and the spiral plate 314 is used to cooperate with the structure of the cooling tank 303 to form a spiral bin 311 inside the cooling tank 303. The spiral bin 311 is then used to make the gas spirally rise and fully contact with the surface of the cooling tank and the spiral plate 314. The cooling inlet pipe 111 is used to introduce the cooling medium into the cooling tank 303 and the spiral plate 314, and the gas is fully cooled. When the gas passes through the vacuum pump, the cooled gas is used to perform auxiliary cooling on the vacuum pump, thereby improving the protection capability of the vacuum pump to a certain extent, thereby reducing the frequency of equipment damage.

[0057] An automatic control method for a vacuum pump working group instrument, the automatic control method is applicable to any of the above automatic control systems, and the automatic control method comprises the following steps:

[0058] Step 1: Open the first pressure meter 105, the second pressure meter 109 and the first electronic control valve 110 to allow gas to enter the device;

[0059] Step 2: Open the fourth electronic control valve 302 to allow the cooling medium to enter the device, thereby cooling the gas;

[0060] Step 3: Open the second electronic control valve 308 to allow the gas to enter the buffer tank 203, and use the fan blade 211 to detect the gas flow speed, and then perform buffer discharge processing on the gas according to different flow rates;

[0061] Step 4: When the airflow velocity is low, the centrifugal force generated by the movable gear 234 is low due to the small rotation amplitude of the fan blade 211, and the movable tooth block 237 inside the movable gear 234 cannot be fully expanded. The L-shaped filter ring plate 205, the bearing ring 226 and the internal holes and grooves of the lifting block 227 cooperate with each other, so that the low-speed airflow can continue to pass;

[0062] Step 5: When the air flow rate is medium-high speed, since the gas flow rate is high at this time, the unfolded movable tooth block 237 is meshed with the first gear 231, thereby driving the second gear 232 at the other end of the rotating shaft 218 to rotate, and the L-shaped filter ring plate 205 and the lifting block 227 are driven to perform synchronous lifting processing through the lifting ring 206, so that the lifting block 227 and the first gas groove 228 and the second gas groove 229 inside the load-bearing ring 226 are staggered, so that the gas is discharged rhythmically, and then the medium-high speed gas is buffered;

[0063] Step 6: Use the touch screen controller 102 to detect the pressure difference between different pressure instruments, and adjust the valve opening degree according to the difference;

[0064] Step 7: Monitor the internal gas pressure in real time and control the equipment accordingly;

[0065] Step 8: When finished, gradually close the vacuum pump, valves and pressure gauge according to the pressure gauge value.

[0066] Embodiment 2

[0067] Reference Figure 5 - Figure 6, compared with the first embodiment, the difference is that: the outer surface of the linkage shaft 210 is fixedly connected to the limit block 209, and the lower surface of the limit block 209 is rotatably connected to the upper surface of the load-bearing plate 208, one end of the linkage shaft 210 is fixedly connected to a movable gear 234, the movable gear 234 is hollowed out to provide a sliding groove, and the sliding groove is fixedly connected to a retractable spring 222, one end of the retractable spring 222 is fixedly connected to one side of a movable tooth block 237, the movable tooth block 237 is hollowed out to provide a spring groove 220, and the movable tooth block 237 is hollowed out to provide a spring groove 220. The two sides of the bearing plate 208 are fixedly connected with a limiting block 221, the upper surface of the bearing plate 208 is fixedly connected with a bearing rod 219, the bearing rod 219 is rotatably connected with a rotating shaft 218, one end of the rotating shaft 218 is fixedly connected with a first gear 231, the other end of the rotating shaft 218 is fixedly connected with a second gear 232, one side of the second gear 232 is meshedly connected with a driving gear 233, one side of the driving gear 233 is fixedly connected with a transmission shaft 235, and the outer surface of the transmission shaft 235 is rotatably connected with a first receiving shaft rod 236;

[0068] When the airflow velocity is low, the centrifugal force generated by the movable gear 234 is low due to the small rotation amplitude of the fan blade 211, and the movable tooth block 237 inside the movable gear 234 cannot be fully expanded, and then the tooth plate 217 cannot be driven to move up and down. At this time, the L-shaped filter ring plate 205, the load-bearing ring 226 and the internal holes and grooves of the lifting block 227 cooperate with each other, so that the low-speed airflow can continue to pass, thereby preventing the gas at the bottom of the equipment from continuously accumulating and causing damage to the equipment;

[0069] When the air flow rate is medium-high speed, due to the high air flow rate at this time, the rotation frequency of the fan blade 211 increases, thereby increasing the centrifugal force generated by the movable gear 234, so that the movable tooth block 237 inside the movable gear 234 is fully unfolded, and then the unfolded movable tooth block 237 is meshed with the first gear 231, thereby driving the second gear 232 at the other end of the rotating shaft 218 to rotate, and then the meshing of the second gear 232 and the driving gear 233 is used to drive the secondary driven gear 213 to rotate, and the rotation of the secondary driven gear 213 causes the third gear 218 to rotate. The adjusting gear 216 is synchronously driven to rotate, and then the tooth plate 217 is meshed with the adjusting gear 216 to make the tooth plate 217 move up and down, and the tooth plate 217 that moves up and down is further used to push the lifting ring 206 to move, and then the L-shaped filter ring plate 205 and the lifting block 227 are driven to move up and down synchronously through the lifting ring 206, so that the lifting block 227 and the first gas groove 228 and the second gas groove 229 inside the load-bearing ring 226 are staggered, so that the gas is discharged rhythmically, and then the medium and high speed gas is buffered.

[0070] Working principle: The gas is introduced into the cooling tank 303 by the air inlet pipe 104, and the spiral plate 314 cooperates with the structure of the cooling tank 303 to form a spiral chamber 311 inside the cooling tank 303, and then the spiral chamber 311 is used to make the gas spirally rise and fully contact with the cooling tank and the surface of the spiral plate 314, and further the cooling medium is introduced into the cooling tank 303 and the spiral plate 314 by the cooling inlet pipe 111, and then the gas is fully cooled, so that when the gas passes through the vacuum pump;

[0071] The cooled gas is used to perform auxiliary cooling treatment on the vacuum pump, thereby improving the protection capability of the vacuum pump to a certain extent, thereby reducing the frequency of equipment damage. Furthermore, the two ends of the reducer 307 have larger diameters, which can better withstand pressure and flow, while the small diameter in the middle can reduce the resistance of the pipeline and improve the gas transmission efficiency. At the same time, the second electronic control valve 308 is used to control the gas passing through the reducer 307, so that when the second pressure meter 109 detects a certain pressure, the reducer 307 is opened through the second electronic control valve 308, and the gas quickly flows into the buffer tank 203. At the same time, the second pressure meter 109 is used to detect the internal pressure of the cooling tank 303 in real time, which is convenient for subsequent operations.

[0072] When the gas flows to the buffer tank 203, the airflow movement drives the fan blades 211 to rotate, and then drives the linkage shaft 210 to rotate through the fan blades 211, so that the linkage shaft 210 drives the movable gear 234 to rotate. When the airflow velocity is low, due to the small rotation amplitude of the fan blades 211, the centrifugal force generated by the movable gear 234 is low, and thus the movable tooth block 237 inside the movable gear 234 cannot be fully unfolded, and then the tooth plate 217 cannot be driven to move up and down. At this time, the L-shaped filter ring plate 205, the load-bearing ring 226 and the internal holes and grooves of the lifting block 227 cooperate with each other, so that the low-speed airflow can continuously pass through, thereby preventing the continuous accumulation of gas at the bottom of the equipment, thereby causing damage to the equipment;

[0073] When the air flow rate is medium-high speed, due to the high gas flow rate at this time, the rotation frequency of the fan blade 211 increases, thereby enhancing the centrifugal force generated by the movable gear 234, so that the movable tooth block 237 inside the movable gear 234 is fully unfolded, and then the unfolded movable tooth block 237 is meshed with the first gear 231, thereby driving the second gear 232 at the other end of the rotating shaft 218 to rotate, and then the meshing of the second gear 232 and the driving gear 233 is used to drive the secondary gear 213 to rotate, and the rotation of the secondary gear 213 causes the third gear 214 to synchronously drive the adjusting gear 2 16 is rotated, and then the tooth plate 217 is meshed with the adjusting gear 216 to make the tooth plate 217 move up and down, and the tooth plate 217 that moves up and down is further used to push the lifting ring 206 to move, and then the L-shaped filter ring plate 205 and the lifting block 227 are driven by the lifting ring 206 to perform synchronous lifting and lowering, so that the lifting block 227 and the first gas groove 228 and the second gas groove 229 inside the load-bearing ring 226 are staggered, so that the gas is discharged rhythmically, and then the medium and high speed gas is buffered, so that the protection ability of the vacuum pump is improved to a certain extent;

[0074] The tooth plate 217 is raised and lowered to allow the first gas groove 228 and the second gas groove 229 to communicate with each other in a rhythmic manner, thereby slowly discharging the medium and high speed gas. At the same time, the fifth electronic control valve 306 is used to open the interconnecting pipe 305 to allow the two groups of equipment to communicate with each other. The first pressure gauge 105 and the second pressure gauge 109 are used to detect the pressure at different positions respectively, so that the valve is adjusted by the pressure change difference at different positions to control the internal gas flow. When the equipment is finished working, the vacuum pump, valve and pressure gauge can be gradually closed according to the value of the pressure gauge.

[0075] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An automatic control system for a vacuum pump working group instrument, wherein the automatic control system uses an automatic control device, characterized in that: The automatic control equipment comprises: A main unit (100) comprising a control box (101) and a support block (103) fixedly connected to the lower surface of the control box (101); a touch screen controller (102) is fixedly connected to one side of the control box (101); and a first pressure meter (105) is connected through the upper surface of the control box (101); A buffer discharge unit (200) comprises a first pressure gauge (105) having one end fixedly connected to a first sealing pad (202) and a buffer tank (203) fixedly connected to the lower surface of the first sealing pad (202); a load-bearing plate (208) fixedly connected to the inner surface of the buffer tank (203); a limiting ring (207) fixedly connected to the inner surface of the buffer tank (203); a load-bearing ring (226) fixedly connected to the upper surface of the limiting ring (207); a linkage shaft (210) rotatably connected to the inner surface of the load-bearing plate (208); a fan blade (211) fixedly connected to the outer surface of one end of the linkage shaft (210); a limit block (209) fixedly connected to the outer surface of the linkage shaft (210); and the limit block (209) ) is rotatably connected to the upper surface of the load-bearing plate (208); one end of the linkage shaft (210) is fixedly connected to a movable gear (234); a sliding groove is hollowed out in the movable gear (234); a retractable spring (222) is fixedly connected in the sliding groove; one end of the retractable spring (222) is fixedly connected to one side of a movable tooth block (237); a spring groove (220) is hollowed out in the movable tooth block (237); both sides of the movable tooth block (237) are fixedly connected to limiting blocks (221); a load-bearing rod (219) is fixedly connected to the upper surface of the load-bearing plate (208); a rotating shaft (218) is rotatably connected in the load-bearing rod (219); one end of the rotating shaft (218) is fixedly connected to a first tooth block (237); The rotating shaft (218) is provided with a second gear (232) fixedly connected to the other end thereof, the second gear (232) is meshingly connected to a driving gear (233) on one side thereof, the driving gear (233) is fixedly connected to a transmission shaft (235) on one side thereof, the transmission shaft (235) is rotatably connected to a first receiving shaft rod (236) on the outer surface thereof, one end of the first receiving shaft rod (236) is fixedly connected to the upper surface of a bearing plate (208), the upper surface of the bearing plate (208) is fixedly connected to a second receiving shaft rod (230), the second receiving shaft rod (230) is rotatably connected to a connecting shaft (215) inside thereof, the connecting shaft (215) is respectively fixedly connected to a third gear (214) and an adjusting gear on the outer surface thereof (216), the other end of the transmission shaft (235) is fixedly connected to a secondary gear (213), both sides of the secondary gear (213) are meshedly connected to a third gear (214), one side of the load-bearing plate (208) is fixedly connected to an extension plate (212), the upper surface of the extension plate (212) is fixedly connected to a limiting frame (224), a tooth plate (217) is slidably connected inside the limiting frame (224), both sides of the tooth plate (217) are fixedly connected to a protective block (223), one side of the tooth plate (217) is meshedly connected to an adjusting gear (216), a lifting ring (206) is placed on the upper surface of the limiting ring (207), and one end of the tooth plate (217) passes through one side of the limiting ring (207),The upper surface of the lifting ring (206) is fixedly connected to an L-shaped filter ring plate (205); the inner surface of the L-shaped filter ring plate (205) is fixedly connected to a lifting block (227); the upper surface of the load-bearing ring (226) is provided with an L-shaped filter ring plate (205); the load-bearing ring (226) and the lifting block (227) are respectively hollowed out to provide a first air groove (228) and a second air groove (229); the buffer tank (203) is fixedly connected to a second filter plate (204); the upper surface of the limiting ring (207) is fixedly connected to a spring group (225); the other end of the spring group (225) is fixedly connected to the lower surface of the L-shaped filter ring plate (205); A rotary cooling unit (300) comprises a load-bearing block (301) fixedly connected to the inner surface of a control box (101) and a second sealing pad (304) fixedly connected to the upper surface of the load-bearing block (301); a cooling tank (303) fixedly connected to the upper surface of the second sealing pad (304); a spiral plate (314) fixedly connected inside the cooling tank (303); sealing plates (312) fixedly connected at both ends of the spiral plate (314); and a first filter plate (309) fixedly connected inside the cooling tank (303).

2. The vacuum pump working group instrument automation control system according to claim 1 is characterized by: A box door (108) is fixedly connected to one side of the control box (101) via a hinge, and a handle (107) is fixedly connected to one side of the box door (108). An exhaust pipe (106) is connected through the upper surface of the control box (101). The exhaust pipes (106) are provided in two groups, and the two groups of exhaust pipes (106) are symmetrical about the center of the control box (101). The two groups of exhaust pipes (106) are fixedly connected to one end of the air inlet of the vacuum pump via a manifold.

3. The vacuum pump working group instrument automation control system according to claim 2 is characterized by: The spiral plate (314) is hollowed out to form a cooling groove (310), the cooling tank (303) is hollowed out to form a heat dissipation groove, and the heat dissipation groove and the cooling groove (310) are communicated with each other, a cooling inlet pipe (111) is fixedly connected to one side of the cooling tank (303), a cooling outlet pipe is fixedly connected to one side of the cooling tank (303), a reducing pipe (307) is fixedly connected to the upper surface of the cooling tank (303), a second electronic control valve (308) is fixedly connected to the outer surface of the reducing pipe (307), and a buffer tank is fixedly connected to the upper surface of the reducing pipe (307). (203), a third electronic control valve (201) is fixedly connected to the outer surface of the exhaust pipe (106), a third air groove (313) is hollowed out and connected to the inside of the first sealing pad (202) and the second sealing pad (304), a fourth electronic control valve (302) is fixedly connected to the outer surface of the cooling inlet pipe (111), an intercommunication pipe (305) is fixedly connected to the outer surface of the reducer (307), a fifth electronic control valve (306) is fixedly connected to the outer surface of the intercommunication pipe (305), and a spiral bin (311) is arranged in the cooling tank (303).

4. The vacuum pump working group instrument automation control system according to claim 1 is characterized by: An air intake pipe (104) is connected through the lower surface of the control box (101), a first electronic control valve (110) is fixedly connected to the outer surface of the air intake pipe (104), cooling inlet pipes (111) are connected through both sides of the control box (101), a second pressure meter (109) is fixedly connected to one side of the cooling tank (303), and one end of the second pressure meter (109) passes through one side of the control box (101).

5. An automatic control method for instruments of a vacuum pump working group, the automatic control method is applicable to any automatic control system in claims 1-4 above, characterized in that: The automatic control method comprises the following steps: Step 1: Open the first pressure meter (105), the second pressure meter (109) and the first electronic control valve (110) to allow gas to enter the interior of the device; Step 2: Open the fourth electronic control valve (302) to allow the cooling medium to enter the device, thereby cooling the gas; Step 3: Open the second electronic control valve (308) to allow the gas to enter the buffer tank (203), and use the fan blade (211) to detect the gas flow speed, and then perform buffer discharge processing on the gas according to different flow rates; Step 4: When the airflow velocity is low, the centrifugal force generated by the movable gear (234) is low due to the small rotation amplitude of the fan blade (211), and the movable tooth block (237) inside the movable gear (234) cannot be fully unfolded. The internal holes and grooves of the L-shaped filter ring plate (205), the load-bearing ring (226) and the lifting block (227) cooperate with each other, so that the low-speed airflow can continue to pass through; Step 5: When the air flow rate is medium-high speed, since the gas flow rate is high at this time, the unfolded movable tooth block (237) is meshed with the first gear (231), thereby driving the second gear (232) at the other end of the rotating shaft (218) to rotate, and the L-shaped filter ring plate (205) and the lifting block (227) are driven to perform synchronous lifting processing through the lifting ring (206), so that the lifting block (227) and the first gas groove (228) and the second gas groove (229) inside the load-bearing ring (226) are staggered with each other, so that the gas is discharged rhythmically, thereby buffering the medium-high speed gas; Step 6: Using the touch screen controller (102) to detect the pressure difference between different pressure instruments, thereby adjusting the valve opening degree according to the difference; Step 7: Monitor the internal gas pressure in real time and control the equipment accordingly; Step 8: When finished, gradually close the vacuum pump, valves and pressure gauge according to the pressure gauge value.

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