Efficient intelligent positive displacement vacuum pump unit

Abstract

The utility model relates to an efficient intelligent positive displacement vacuum pump unit which comprises a base, a first-stage vacuum pump main machine, a second-stage vacuum pump main machine, a first silencer, a second silencer, an oil cooling assembly and a water cooling assembly, and the oil cooling assembly comprises an oil storage tank, an oil pump, an oil filter and an oil cooling radiator. The water-cooling assembly comprises a water storage tank, a water pump, a water filter and a water-cooling radiator, the oil-cooling radiator is stacked on the upper portion of the water-cooling radiator, and a cooling fan is installed above the oil-cooling radiator. And a bearing temperature sensor and a vibration sensor are respectively arranged on the primary vacuum pump main machine and the secondary vacuum pump main machine. The efficient intelligent volumetric vacuum pump unit is more compact in structure, better in silencing effect and lower in whole machine working noise; various sensors are further arranged, and equipment work is more intelligent and efficient by monitoring parameters such as air inlet and outlet temperature, pressure, bearing temperature, oil tank temperature, namely lubricating oil temperature and pump body vibration in real time.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum pump equipment, in particular to a high-efficiency intelligent positive displacement vacuum pump unit. Background Art

[0002] The driving components of some large-scale two-stage screw air compressors or vacuum pumps use liquid-cooled motors, such as water-cooled and oil-cooled. For example, the "A Dual Permanent Magnet Liquid-Cooled Motor Screw Air Compressor" disclosed in Chinese Utility Model Patent 202021024518.6 uses a water pump, two-stage pipes, water tanks, etc. to cool and circulate the two-stage water-cooled motor. The shortcomings are: First, the two-stage cooling water circuit adopts a series connection, and the coolant enters the second-stage motor for heat exchange after the first-stage motor heat exchange. Obviously, the cooling effect of the second-stage motor is not good and the working condition is unstable. Second, the use of water cooling is easy to cause the pipe or radiator to rust, which also affects the service life and stability of the equipment. In addition, in the prior art, regular maintenance or replacement of lubricating oil is generally used for routine maintenance, which makes it difficult to achieve real-time monitoring and protection. In addition, in the prior art, the lubricating oil uses a separate motor to drive the oil pump for circulation. The oil pump works independently and usually maintains a fixed mode, which cannot be adjusted with the equipment load, so the energy consumption is large and the waste is large. Utility Model Content

[0003] The utility model aims to provide a high-efficiency intelligent positive displacement vacuum pump unit in view of the above problems.

[0004] The utility model is realized through the following technical scheme: an efficient and intelligent volumetric vacuum pump unit, which includes a base, a primary vacuum pump main unit and a secondary vacuum pump main unit which are arranged on the base and arranged up and down, the exhaust port of the primary vacuum pump main unit is downward and connected with the upward air inlet of the secondary vacuum pump main unit through a cascade pipeline, the air inlet pipeline of the primary vacuum pump main unit is arranged upward and connected with an air inlet filter, and a main air inlet is arranged on the side of the air inlet filter, wherein: a first muffler and a second muffler are also installed on the base, the exhaust port of the secondary vacuum pump main unit is connected with the first muffler and the second muffler in sequence, and a main exhaust port is arranged on the top of the second muffler; the vacuum pump unit also includes an oil cooling component and a water cooling component, wherein the oil cooling component includes an oil storage tank, an oil pump, an oil filter, an oil cooling radiator, an oil storage tank The tank is connected in series with the oil pump, the oil filter, and the oil cooling radiator through the first oil pipe, the second oil pipe, and the third oil pipe in sequence. The oil cooling radiator is connected in parallel with the gear boxes of the primary vacuum pump host and the secondary vacuum pump host through the fourth oil pipe group. The primary vacuum pump host and the secondary vacuum pump host are connected to the oil storage tank through the fifth oil pipe and the sixth oil pipe respectively. The water cooling component includes a water storage tank, a water pump, a water filter, and a water cooling radiator. The water storage tank is connected in series with the water pump, the water filter, and the water cooling radiator through the first water pipe, the second water pipe, and the third water pipe in sequence. The water cooling radiator is connected to the air intake pipe of the primary vacuum pump host through the fourth water pipe. The bottom of the second muffler is also provided with a fifth water pipe connected to the water storage tank. The oil cooling radiator is stacked on the upper part of the water cooling radiator and a cooling fan is installed above the oil cooling radiator.

[0005] Bearing temperature sensors are also provided on the primary vacuum pump main engine and the secondary vacuum pump main engine respectively.

[0006] Vibration sensors are also respectively arranged on the primary vacuum pump main unit and the secondary vacuum pump main unit.

[0007] A bracket frame is provided on the base, the primary vacuum pump main unit is installed on the bracket frame, and the secondary vacuum pump main unit is installed on the base and is located directly below the primary vacuum pump main unit; shock-absorbing pads are provided at the connection between the primary vacuum pump main unit and the bracket frame, and at the connection between the secondary vacuum pump main unit and the base.

[0008] The side walls of the air inlet pipe of the primary vacuum pump main unit and the side walls of the cascade pipe are also connected with vent valves respectively; the side walls of the air inlet pipe of the primary vacuum pump main unit and the side walls of the cascade pipe are also provided with air temperature sensors and air pressure sensors respectively.

[0009] The first silencer is installed horizontally on the base, and the second silencer is installed vertically on the base.

[0010] The water filter is also connected with a recoil air pipe, which is connected to a compressed air pipeline.

[0011] The utility model discloses an efficient and intelligent positive displacement vacuum pump unit which integrates a two-stage vacuum pump main unit and a two-stage silencer. The unit is more compact in structure and has a better silencing effect, and the whole machine has lower operating noise. At the same time, the utility model discloses an inlet and outlet temperature sensor, a pressure sensor, a bearing temperature sensor, an oil tank temperature sensor and a vibration sensor are also provided in the vacuum pump main unit. The inlet and outlet temperature, pressure, bearing temperature, oil tank temperature, i.e., lubricating oil temperature, pump body vibration and other parameters are monitored in real time, so as to judge the working state of the vacuum pump main unit and the lubrication state and heat dissipation effect of the bearings and gears in real time, so as to make the equipment work more intelligent and efficient, and to quickly remind the operator or automatically shut down the unit when an abnormality occurs, so as to better protect the equipment and components and extend the service life of the vacuum pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 , Figure 2 , Figure 3 The utility model is a three-dimensional diagram at different angles.

[0013] Figure 4 It is a schematic diagram of the plane structure of the utility model. DETAILED DESCRIPTION

[0014] The present invention will be further described below in conjunction with specific examples and accompanying drawings.

[0015] like Figure 1-Figure 4As shown, the utility model high-efficiency intelligent volumetric vacuum pump unit includes a base 1, a primary vacuum pump host 2 and a secondary vacuum pump host 3 which are arranged on the base 1 and arranged up and down, the exhaust port of the primary vacuum pump host 2 is downwardly connected with the upward air inlet of the secondary vacuum pump host 3 through a cascade pipe 30, the air inlet pipe 20 of the primary vacuum pump host 2 is upwardly arranged and connected with an air inlet filter 21, and a main air inlet 201 is arranged on the side of the air inlet filter 21, wherein: a first muffler 4 and a second muffler 5 are also installed on the base 1, the secondary vacuum pump host 3 is connected with the first muffler 4 and the second muffler 5 in sequence, and a main exhaust port 501 is arranged on the top of the second muffler 5; the vacuum pump unit also includes an oil cooling component 6 and a water cooling component 7, wherein the oil cooling Component 6 includes an oil storage tank 61, an oil pump 62, an oil filter 63, and an oil cooling radiator 64. The oil storage tank 61, the oil pump 62, the oil filter 63, and the oil cooling radiator 64 are connected in series in sequence through a first oil pipe 601, a second oil pipe 602, and a third oil pipe 603. The oil cooling radiator 64 is connected in parallel with the gear boxes of the primary vacuum pump main engine 2 and the secondary vacuum pump main engine 3 through a fourth oil pipe group 604. The primary vacuum pump main engine 2 and the secondary vacuum pump main engine 3 are connected to the oil storage tank 61 through a fifth oil pipe 605 and a sixth oil pipe 606, respectively. Under the action of the oil pump 62, the oil in the oil storage tank 61 passes through the first oil pipe 601, the oil pump 62, the second oil pipe 602, the oil filter 63, and the third oil pipe 603 in sequence, and passes through the oil cooling radiator 64. The cold oil comes out through the fourth oil pipe group 604 and enters the gear box of the primary vacuum pump main unit 2 and the secondary vacuum pump main unit 3 respectively for lubrication and heat absorption. The hot oil after heat absorption then flows back to the oil storage tank 61 through the fifth oil pipe 605 and the sixth oil pipe 606 respectively, forming a parallel oil cooling cycle, so that the two-stage vacuum pump main unit maintains a stable working temperature and avoids overheating; the water cooling component 7 includes a water storage tank 71, a water pump 72, a water filter 73, and a water cooling radiator 74. The water storage tank 71 and the water pump 72, the water filter 73, and the water cooling radiator 74 are connected in series through the first water pipe 701, the second water pipe 702, and the third water pipe 703 in sequence. The water cooling radiator 74 is connected to the air intake pipe 20 of the primary vacuum pump main unit 2 through the fourth water pipe 704, and the second silencer 5 is also provided with a fifth water pipe 705 connected to the water tank 71 at the bottom; the water in the water tank 71 enters the air intake pipe 20 of the primary vacuum pump main unit 2 through the first water pipe 701, the water pump 72, the second water pipe 702, the water filter 73, the third water pipe 703, the water cooling radiator 74, and the fourth water pipe 704 in sequence under the action of the water pump 72, and enters the first muffler 4 and the second muffler 5 from the exhaust pipe at the bottom of the secondary vacuum pump main unit 3 along with the compressed air of the two-stage vacuum pump, and is separated and collected at the second muffler 5 and then flows back to the water tank 71 from the fifth water pipe 705, forming a water cooling cycle; the oil cooling radiator 64 is stacked on the upper part of the water cooling radiator 74 and a cooling fan 8 is installed above the oil cooling radiator 74 to improve the heat dissipation efficiency of the two radiators.

[0016] A bearing temperature sensor 22 is also provided on the primary vacuum pump main unit 2 and the secondary vacuum pump main unit 3, respectively, and its function is to monitor the bearing temperature in real time. When the bearing temperature exceeds the set value, the bearing can be protected by reducing the load or shutting down to avoid damage due to excessive bearing temperature. At the same time, the operator can be reminded to perform maintenance to eliminate fault risks and safety hazards. For example, when the bearing is in normal operation and normal lubrication and heat dissipation conditions, the operating temperature does not exceed 70°C. If the bearing temperature sensor detects that the bearing temperature exceeds 70°C, an alarm can be issued immediately; or when the temperature is detected to exceed 80°C again, the equipment automatically shuts down; a lubricating oil temperature sensor 23 is also provided on the primary vacuum pump main unit 2 and the secondary vacuum pump main unit 3, respectively, and its function is to monitor the temperature of the lubricating oil and the oil tank in real time. It is arranged at the lower part of both ends of the main unit, so that a comprehensive analysis can be made in combination with the bearing temperature to determine whether there is a fault or oil circuit blockage or insufficient heat dissipation of the oil tank, so as to better eliminate risks, protect bearings and equipment, and extend service life.

[0017] In addition, multiple other oil temperature sensors and water temperature sensors are also installed in the circulation pipelines and components of the oil cooling cycle and water cooling cycle to monitor the oil temperature and level. If there is an abnormality, an automatic alarm or shutdown will be issued to protect the equipment and facilitate the determination of the fault point.

[0018] Vibration sensors 24 are also provided on the primary vacuum pump main unit 2 and the secondary vacuum pump main unit 3 respectively to sense the working vibration state of the pump main unit. When the vibration exceeds the limit value, it means that the equipment is not sufficiently lubricated and needs to be shut down for detection and troubleshooting, thereby better protecting the equipment.

[0019] A bracket frame 11 is provided on the base 1, and the primary vacuum pump main unit 2 is installed on the bracket frame 11. The secondary vacuum pump main unit 3 is installed on the base 1 and is located directly below the primary vacuum pump main unit 2. Shock-absorbing foot pads 25 are provided at the connection between the primary vacuum pump main unit 2 and the bracket frame 11, and at the connection between the secondary vacuum pump main unit 3 and the base 1 to reduce vibration and noise.

[0020] The side walls of the air inlet pipe 20 and the side walls of the cascade pipe 30 of the primary vacuum pump main unit 2 are also connected with vent valves 26 respectively, so as to relieve pressure and vent when needed; the side walls of the air inlet pipe 20 and the side walls of the cascade pipe 30 of the primary vacuum pump main unit 2 are also provided with air temperature sensors 27 and air pressure sensors 28 respectively, so as to monitor the pressure and temperature of the corresponding parts, so as to more intelligently control the working state of the vacuum pump main unit and achieve better energy-saving effect.

[0021] The first silencer 4 is installed horizontally on the base 1, and the second silencer 5 is installed vertically on the base 1, which can save installation space and reduce the volume of the whole machine.

[0022] The water filter 73 is also connected to a recoil air pipe 731, which is connected to a compressed air pipeline. When the water filter 73 needs to be cleaned, the drain valve at the bottom of the water filter 73 is opened, and compressed air is blown into the filter through the recoil air pipe 731 to clean the inside of the filter, thereby extending the service life of the water filter.

[0023] To sum up, the utility model high-efficiency intelligent volumetric vacuum pump unit integrates a two-stage vacuum pump main unit and a two-stage silencer, which is more compact in structure and has better silencing effect, and the working noise of the whole machine is lower; at the same time, the utility model is also provided with an intake and exhaust temperature sensor, a pressure sensor, a bearing temperature sensor, an oil tank temperature sensor and a vibration sensor in the vacuum pump main unit, which monitors the intake and exhaust temperature, pressure, bearing temperature, oil tank temperature, i.e., lubricating oil temperature, pump body vibration and other parameters in real time, so as to judge the working state of the vacuum pump main unit and the lubrication state and heat dissipation effect of the bearings and gears in real time, so as to make the equipment work more intelligent and efficient, and can quickly remind the operator or automatically shut down when an abnormality occurs, so as to better protect the equipment and components and extend the service life of the vacuum pump.

[0024] Of course, in the present invention, when connecting various pipelines and equipment components, it is also necessary to use three-way pipes, four-way pipes, various valves and other components, which are common technical means and will not be described in detail here.

[0025] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A high-efficiency intelligent positive displacement vacuum pump unit, comprising a base, a primary vacuum pump main unit and a secondary vacuum pump main unit arranged on the base and arranged in an upper and lower manner, the exhaust port of the primary vacuum pump main unit facing downward is connected to the air inlet of the secondary vacuum pump main unit facing upward through a cascade pipe, the air inlet pipe of the primary vacuum pump main unit is arranged upward and connected to an air inlet filter, and a main air inlet is arranged on the side of the air inlet filter, characterized in that: A first silencer and a second silencer are also installed on the base, and the exhaust port of the secondary vacuum pump main engine is connected to the first silencer and the second silencer in sequence, and a main exhaust port is arranged on the top of the second silencer; the vacuum pump unit also includes an oil cooling component and a water cooling component, wherein the oil cooling component includes an oil storage tank, an oil pump, an oil filter, and an oil cooling radiator, the oil storage tank and the oil pump, the oil filter, and the oil cooling radiator are connected in series through the first oil pipe, the second oil pipe, and the third oil pipe in sequence, the oil cooling radiator and the gear boxes of the primary vacuum pump main engine and the secondary vacuum pump main engine are connected in parallel through the fourth oil pipe group, and a The first-stage vacuum pump main unit, the second-stage vacuum pump main unit and the oil storage tank are connected respectively through the fifth oil pipe and the sixth oil pipe; the water cooling component includes a water storage tank, a water pump, a water filter, and a water cooling radiator. The water storage tank and the water pump, the water filter, and the water cooling radiator are connected in series through the first water pipe, the second water pipe, and the third water pipe in sequence. The water cooling radiator is connected to the air intake pipe of the first-stage vacuum pump main unit through the fourth water pipe, and the bottom of the second muffler is also provided with a fifth water pipe connected to the water storage tank; the oil cooling radiator is stacked on the upper part of the water cooling radiator and a cooling fan is installed above the oil cooling radiator.

2. The high-efficiency intelligent positive displacement vacuum pump unit according to claim 1 is characterized in that: The primary vacuum pump main engine and the secondary vacuum pump main engine are respectively provided with bearing temperature sensors; the primary vacuum pump main engine and the secondary vacuum pump main engine are respectively provided with lubricating oil temperature sensors.

3. The high-efficiency intelligent positive displacement vacuum pump unit according to claim 1 is characterized in that: Vibration sensors are also respectively arranged on the primary vacuum pump main unit and the secondary vacuum pump main unit.

4. The high-efficiency intelligent positive displacement vacuum pump unit according to claim 1 is characterized in that: A bracket frame is provided on the base, the primary vacuum pump main unit is installed on the bracket frame, and the secondary vacuum pump main unit is installed on the base and is located directly below the primary vacuum pump main unit; shock-absorbing pads are provided at the connection between the primary vacuum pump main unit and the bracket frame, and at the connection between the secondary vacuum pump main unit and the base.

5. The high-efficiency intelligent positive displacement vacuum pump unit according to claim 1 is characterized in that: The side walls of the air inlet pipe of the primary vacuum pump main unit and the side walls of the cascade pipe are also connected with vent valves respectively; the side walls of the air inlet pipe of the primary vacuum pump main unit and the side walls of the cascade pipe are also provided with air temperature sensors and air pressure sensors respectively.

6. The high-efficiency intelligent positive displacement vacuum pump unit according to claim 1, characterized in that: The first silencer is installed horizontally on the base, and the second silencer is installed vertically on the base.

7. The high-efficiency intelligent positive displacement vacuum pump unit according to claim 1, characterized in that: The water filter is also connected with a recoil air pipe, which is connected to a compressed air pipeline.

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