An integrated circulating liquid-cooled dry vacuum unit and a method of using the same

Abstract

The present invention relates to the technical field of vacuum machines, and in particular to an integrated circulating liquid-cooled dry vacuum machine unit and a method for using the same. The unit comprises a base, wherein two groups of first rotating brackets are fixedly connected to the top of the base, and a cooling assembly is arranged between the two groups of the first rotating brackets; two groups of second rotating brackets are fixedly connected to the bottom of the base, and a liquid storage tank is arranged between the two groups of the second rotating brackets; both ends of the liquid storage tank are connected to a first rotating joint, a three-way solenoid valve is arranged on the second three-way pipe, and a temperature sensor is arranged in the second three-way pipe; the coolant cooled by the cooling assembly flows into the second three-way pipe, the temperature of the coolant is detected by the temperature sensor, and the three-way solenoid valve is controlled according to the temperature detection value to adjust the flow direction of the coolant, and the coolant is circulated and cooled.

Description

Technical Field

[0001] The invention belongs to the technical field of vacuum machines, and in particular relates to an integrated circulating liquid-cooled dry vacuum machine unit and a use method thereof. Background Art

[0002] At present, Roots vacuum pumps and screw vacuum pumps generally adopt external circulating water cooling or air cooling. When the external circulating water is connected, the water temperature and water quality cannot be controlled. If the water temperature is too low, some condensable gases will condense in the pump cavity. If the water temperature is too high, the heat will not be dissipated in time and heat will accumulate, which will affect the cooling effect of the vacuum unit and easily cause equipment failure.

[0003] After searching, in the prior art, the announcement number: CN221033137U, the announcement date: 2024-05-28, discloses an integrated circulating liquid-cooled dry vacuum unit, including a unit box, one end of the unit box is provided with a screw vacuum pump, one end of the unit box is provided with a Roots vacuum pump, and the Roots vacuum pump and the screw vacuum pump are arranged in correspondence, a circulating pump is installed at one end of the inner wall of the unit box, the upper end of the circulating pump is connected to a Y-type filter, a heat exchanger is installed at the bottom of the inner wall of the unit box, and a liquid storage tank is arranged at the upper end of the unit box. The present application has a liquid cooling circulation system powered by a circulating pump, and the antifreeze flows through the heat exchanger into the screw vacuum pump and the Roots vacuum pump, and then enters the liquid storage tank, flows through the Y-type filter and then enters the circulating pump to complete a whole cycle. The temperature sensor is used to control the speed of the heat exchanger fan to maintain a constant system temperature, thereby avoiding equipment failure and shutdown caused by uneven heat dissipation or water quality problems. At the same time, the intelligent control module maintains the system temperature, saves energy, and reduces costs.

[0004] However, the device still has the following defects: although it can avoid the effect of equipment failure shutdown caused by uneven heat dissipation or water quality problems, the device directly allows the antifreeze to enter the vacuum unit after cooling the antifreeze through a heat exchanger, and cannot circulate and cool the antifreeze. When the antifreeze temperature is too high, the device will shut down through an alarm to protect the equipment, but at the same time it will affect the normal operation of the vacuum unit, and workers are required to monitor in real time and cool the antifreeze in time for the equipment to operate normally, which affects the working efficiency of the vacuum unit and increases the workload of workers. Summary of the invention

[0005] In view of the above problems, the present invention provides an integrated circulating liquid-cooled dry vacuum unit and a method for using the same, comprising a base, the top of which is fixedly connected to two groups of first rotating brackets, and a cooling assembly is provided between the two groups of the first rotating brackets;

[0006] Two groups of second rotating brackets are fixedly connected to the bottom end of the base, and a liquid storage tank is provided between the two groups of the second rotating brackets;

[0007] Both ends of the liquid storage tank are connected to a first rotating joint, and a group of the first rotating joints are connected to a first flow guide pipe;

[0008] The first flow guide pipe is connected to a second three-way pipe, a three-way solenoid valve is arranged on the second three-way pipe, and a temperature sensor is arranged in the second three-way pipe;

[0009] The coolant cooled by the cooling assembly flows into the second three-way pipe, the temperature of the coolant is detected by the temperature sensor, and the three-way solenoid valve is controlled according to the temperature detection value to adjust the flow direction of the coolant, and the coolant is circulated and cooled.

[0010] Furthermore, a filter tank is provided on the base, and a first circulation pump is installed on the filter tank. The liquid outlet end of the first circulation pump is connected to a first three-way pipe, and the output end of the first three-way pipe passes through the first rotating bracket and is connected to the cooling component, the liquid inlet end of the second three-way pipe is connected to the cooling component, and a group of output ends of the second three-way pipe are connected to the first guide pipe.

[0011] Furthermore, another group of output ends of the second three-way pipe is connected to the second guide pipe, the second guide pipe is connected to the second circulation pump, the liquid outlet end of the second circulation pump is connected to the circulation pipe, and the other end of the circulation pipe is interconnected with the first three-way pipe.

[0012] Furthermore, a mounting platform is provided on one side of the base, and a screw vacuum pump and a Roots vacuum pump are installed on the mounting platform. The screw vacuum pump and the Roots vacuum pump are both connected with a liquid inlet pipe, and the two groups of liquid inlet pipes are connected with the liquid storage tank. The screw vacuum pump and the Roots vacuum pump are both connected with a liquid outlet pipe, and the top ends of the two groups of liquid outlet pipes pass through the base and are connected with the interior of the filter tank.

[0013] Furthermore, the cooling assembly includes a first annular tube and a second annular tube, the first annular tube is connected to a third air guide tube, the third air guide tube is connected to a second rotating joint, the other end of the second rotating joint is rotatably connected to a group of output ends of the first three-way tube, and the other end of the second rotating joint is mutually connected to a group of output ends of the first three-way tube, the outer wall of the first annular tube is provided with a first outer gear ring, the inner wall of the first annular tube is fixedly connected to a horizontal plate, a fan motor is installed at the center of the horizontal plate, and the output end of the fan motor is transmission-connected to a cooling fan.

[0014] Furthermore, a plurality of groups of shunt tubes are connected between the first annular tube and the second annular tube, and the plurality of groups of shunt tubes are distributed in an annular array with the central axis of the first annular tube as the center, and annular fin plates are provided on the outer walls of the plurality of first annular tubes, and a fourth flow guide tube is connected to the second annular tube, and the output end of the fourth flow guide tube is connected to a third rotating joint, and the third rotating joint is rotatably connected to the input end of the second three-way tube, and the third rotating joint and the input end of the second three-way tube are connected to each other.

[0015] Furthermore, two groups of mounting frames are provided on the base, and a driving gear is rotatably connected between the two groups of mounting frames. A driving motor is provided on one group of mounting frames, and the output end of the driving motor is transmission-connected to the center of the driving gear. The driving gear is meshingly connected to the first outer gear ring, and a second outer gear ring is provided on the outer wall of the liquid storage tank.

[0016] Furthermore, the liquid inlet end of the first circulation pump is connected to a liquid collection pipe, and the liquid collection pipe passes through the filter tank and extends to the bottom end of the inner wall of the filter tank. Two groups of suction pumps are arranged in the filter tank, and protective covers are arranged outside the two groups of suction pumps. The liquid inlet ends of the two groups of suction pumps are connected to suction pipes, and the bottom ends of the two groups of suction pipes are respectively connected to two groups of liquid outlet pipes. Two groups of filter screens are arranged inside the filter tank, and the two groups of filter screens are respectively arranged on both sides of the liquid collection pipe, and the two groups of filter screens are movably fitted to the inner wall of the filter tank.

[0017] Furthermore, two groups of slide grooves are provided at the top end and the bottom end of the inner wall of the filter tank, the inner wall of the slide groove is fixedly connected with a slide column, a slider is slidably connected to the slide column, springs are provided between the slider and the two side walls of the slide groove, the springs are sleeved on the slide column, a vibration frame is fixedly connected to the slider, and the vibration frame is detachably connected to one end of a group of filter screens.

[0018] A method for using an integrated circulating liquid-cooled dry vacuum unit, the method comprising:

[0019] The coolant in the liquid storage tank is introduced into the running vacuum unit to cool the vacuum unit;

[0020] The coolant passing through the inside of the vacuum unit is introduced into the cooling component for cooling;

[0021] The cooled coolant enters the second three-way pipe, and the temperature sensor detects the temperature of the coolant and controls the adjustment of the three-way solenoid valve according to the temperature value;

[0022] When the coolant temperature drops to the preset value, adjust the three-way solenoid valve to allow the coolant to enter the storage tank for storage;

[0023] When the coolant temperature does not reach the preset value, adjust the three-way solenoid valve to allow the coolant to enter the cooling assembly for circulation cooling until the coolant temperature reaches the preset value and then enters the liquid storage tank.

[0024] The beneficial effects of the present invention are:

[0025] 1. The coolant cooled by the cooling component flows into the second three-way pipe, and the temperature of the coolant is detected by the temperature sensor. When the temperature of the coolant drops to a preset value, the three-way solenoid valve is adjusted to allow the coolant to enter the liquid storage tank through the first guide pipe for storage. When the temperature of the coolant does not drop to the preset value, the three-way solenoid valve is adjusted to allow the coolant to be pumped out to the cooling component through the second circulation pump for continued cooling. Through the automatic circulation cooling operation of the coolant, the coolant reaches the preset temperature when it enters the liquid storage tank. Without manual monitoring and manual adjustment, the coolant can meet the cooling needs of the vacuum unit, thereby improving the cooling effect and ensuring the normal operation of the vacuum unit.

[0026] 2. The coolant is allowed to enter the first annular pipe through the first three-way pipe and then be diverted through several groups of manifolds to accelerate the cooling speed of the coolant during circulation. The cooling fan is driven by the fan motor to rotate, thereby accelerating the circulation speed of the coolant heat. At the same time, the heat dissipation area is increased by setting an annular fin plate, thereby effectively improving the cooling efficiency of the coolant.

[0027] 3. The driving motor drives the active gear to rotate, so that the first outer gear ring drives the cooling component to rotate synchronously. At the same time, the first outer gear ring is meshed with the second outer gear ring, so that the second outer gear ring drives the liquid storage tank to rotate synchronously. When the cooling component rotates, the heat dissipation speed of the coolant can be accelerated, and the cooling efficiency of the coolant can be improved. At the same time, by making the cooling component and the liquid storage tank rotate synchronously, when the outside temperature is too low, the coolant in the cooling component and the liquid storage tank can remain in a flowing state, thereby avoiding the outside temperature being too low and causing the coolant to freeze, which affects the cooling effect of the vacuum unit.

[0028] 4. Through two sets of suction pumps, the coolant in the vacuum unit is drawn into the suction pump through the suction pipe, thereby accelerating the circulation speed of the coolant in the vacuum unit, and then sprayed out to the surface of the filter screen through the spray pipe for filtration. At the same time, due to the impact of the cooling sprayed out by the spray pipe, the filter screen moves, and the vibration frame drives the filter screen to shake through the tension of the spring, and the impurities remaining on the filter screen are shaken off to the bottom of the inner wall of the filter tank to avoid clogging of the filter screen and affect the filtering effect, thereby increasing the service life of the filter screen and effectively saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 A schematic diagram of the main structure of an embodiment of the present invention is shown;

[0031] Figure 2 A schematic diagram showing another viewing angle of the main structure according to an embodiment of the present invention is shown;

[0032] Figure 3 A schematic diagram of the structure of a cooling assembly according to an embodiment of the present invention is shown;

[0033] Figure 4 An exploded schematic diagram of a cooling assembly structure according to an embodiment of the present invention is shown;

[0034] Figure 5 A schematic diagram of a cooling assembly structure from a top view according to an embodiment of the present invention is shown;

[0035] Figure 6 A side view of a main structure according to an embodiment of the present invention is shown;

[0036] Figure 7 A cross-sectional view of the internal structure of a filter tank according to an embodiment of the present invention is shown;

[0037] Figure 8 The embodiment of the present invention is shown Figure 7 Enlarged schematic diagram at point A in the middle.

[0038] In the figure: 1, base; 101, through slot; 2, first rotating bracket; 3, cooling assembly; 301, first annular tube; 302, third guide tube; 303, second rotating joint; 304, first outer gear ring; 305, horizontal plate; 306, fan motor; 307, cooling fan; 308, shunt pipe; 309, second annular tube; 3010, annular fin plate; 3011, fourth guide tube; 3012, third rotating joint; 4, filter tank; 5, first circulation pump; 6, first three-way pipe; 7, second rotating bracket; 8, liquid storage tank; 9, mounting table; 10, Screw vacuum pump; 11. Roots vacuum pump; 12. liquid inlet pipe; 13. liquid outlet pipe; 14. second three-way pipe; 15. three-way solenoid valve; 16. first guide pipe; 17. first rotating joint; 18. second guide pipe; 19. second circulation pump; 20. circulation pipe; 21. mounting frame; 22. driving motor; 23. driving gear; 24. second outer gear ring; 25. liquid extraction pipe; 26. suction pump; 27. protective cover; 28. suction pipe; 29. ​​filter; 30. slide groove; 31. slide column; 32. slide block; 33. spring; 34. vibration frame; 35. liquid spray pipe. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] The embodiment of the present invention provides an integrated circulating liquid-cooled dry vacuum unit, comprising a base 1; illustratively, as Figure 1-2 shown.

[0041] A through groove 101 is provided on the base 1, and two groups of first rotating brackets 2 are fixedly connected to the top of the base 1. The two groups of the first rotating brackets 2 are respectively arranged on both sides of the through groove 101. A cooling component 3 is rotatably connected between the two groups of the first rotating brackets 2. A filter tank 4 is provided on the base 1, and a first circulation pump 5 is installed on the filter tank 4. The liquid outlet end of the first circulation pump 5 is connected with a first three-way pipe 6, and the output end of the first three-way pipe 6 passes through the first rotating bracket 2 and is connected with the cooling component 3. A mounting platform 9 is provided on one side of the base 1, and a screw vacuum pump 10 and a Roots vacuum pump 11 are installed on the mounting platform 9. The screw vacuum pump 10 and the Roots vacuum pump 11 are both connected with a liquid inlet pipe 12, and the two groups of the liquid inlet pipes 12 are both connected with the liquid storage tank 8. The screw vacuum pump 10 and the Roots vacuum pump 11 are both connected with a liquid outlet pipe 13, and the top ends of the two groups of the liquid outlet pipes 13 pass through the base 1 and are connected with the inside of the filter tank 4;

[0042] Two groups of second rotating brackets 7 are fixedly connected to the bottom end of the base 1. The two groups of second rotating brackets 7 are respectively arranged on both sides of the through groove 101. A liquid storage tank 8 is rotatably connected between the two groups of second rotating brackets 7. The liquid storage tank 8 is made of heat-insulating material. Cooling liquid is stored in the liquid storage tank 8. Both ends of the liquid storage tank 8 are connected with a first rotating joint 17. One group of the first rotating joints 17 is connected with a first guide pipe 16. The other group of the first rotating joints 17 is connected with the two groups of liquid inlet pipes 12. The first guide pipe 16 is connected with a second three-way pipe 14. , a three-way solenoid valve 15 is provided on the second three-way pipe 14, the liquid inlet end of the second three-way pipe 14 is interconnected with the cooling assembly 3, a temperature sensor is provided on the inner wall of the liquid inlet end of the second three-way pipe 14, one group of output ends of the second three-way pipe 14 is interconnected with the first guide pipe 16, the other group of output ends of the second three-way pipe 14 is connected to the second guide pipe 18, the second guide pipe 18 is connected with a second circulation pump 19, the liquid outlet end of the second circulation pump 19 is connected with a circulation pipe 20, and the other end of the circulation pipe 20 is interconnected with the first three-way pipe 6;

[0043] Specifically, the cooling liquid stored in the liquid storage tank 8 enters the two groups of liquid inlet pipes 12 through a group of first rotating joints 17, and then enters the screw vacuum pump 10 and the Roots vacuum pump 11, so as to absorb the heat generated by the screw vacuum pump 10 and the Roots vacuum pump 11 when they are working, so as to achieve the effect of cooling the screw vacuum pump 10 and the Roots vacuum pump 11. The cooling water after absorbing the heat flows into the filter tank 4 through the liquid outlet pipe 13 for filtration. The filtered cooling liquid is drawn out by the first circulation pump 5 and flows into the first three-way pipe 6, and finally enters the cooling assembly 3 for cooling operation.

[0044] Furthermore, the cooled coolant flows into the second three-way pipe 14, and the temperature of the coolant is detected by the temperature sensor. When the temperature of the coolant is reduced to a preset value, the three-way solenoid valve 15 is adjusted to allow the coolant to enter the liquid storage tank 8 through the first guide pipe 16 for storage. When the temperature of the coolant is not reduced to the preset value, the three-way solenoid valve 15 is adjusted to allow the coolant to be pumped into the first three-way pipe 6 through the second circulation pump 19, and finally enter the cooling assembly 3 to continue cooling. Through the circulating cooling operation of the coolant, the coolant reaches the preset temperature when entering the liquid storage tank 8, so that the coolant meets the cooling requirements of the screw vacuum pump 10 and the Roots vacuum pump 11, improves the cooling effect, and avoids the coolant temperature entering the screw vacuum pump 10 and the Roots vacuum pump 11 being too high, resulting in poor cooling effect and causing equipment damage.

[0045] The cooling assembly 3 includes a first annular tube 301 and a second annular tube 309; illustratively, as Figure 3-5 shown.

[0046] The first annular tube 301 is connected to a third flow guide tube 302, and the third flow guide tube 302 is connected to a second rotating joint 303, the other end of the second rotating joint 303 is rotatably connected to a group of output ends of the first three-way tube 6, and the other end of the second rotating joint 303 is mutually connected to a group of output ends of the first three-way tube 6, the outer wall of the first annular tube 301 is provided with a first outer gear ring 304, the inner wall of the first annular tube 301 is fixedly connected to a horizontal plate 305, a fan motor 306 is installed at the center of the horizontal plate 305, and the output end of the fan motor 306 is drivingly connected to a cooling fan 307;

[0047] A plurality of groups of flow dividers 308 are connected between the first annular tube 301 and the second annular tube 309. The plurality of groups of flow dividers 308 are distributed in an annular array with the central axis of the first annular tube 301 as the center. An annular fin plate 3010 is sleeved on the outer wall of the plurality of groups of the first annular tubes 301. A fourth flow guide tube 3011 is connected to the second annular tube 309. The output end of the fourth flow guide tube 3011 is connected to a third rotating joint 3012. The third rotating joint 3012 is rotatably connected to the input end of the second three-way tube 14, and the third rotating joint 3012 is connected to the input end of the second three-way tube 14.

[0048] Specifically, the coolant is allowed to enter the first annular tube 301 through the first three-way pipe 6 and then be diverted through several groups of diversion tubes 308 to accelerate the cooling speed of the coolant during circulation. The cooling fan 307 is driven to rotate by the fan motor 306 to accelerate the circulation speed of the coolant heat. At the same time, the heat dissipation area is increased by setting the annular fin plate 3010, thereby effectively improving the cooling efficiency of the coolant. The cooled coolant is converged through the second annular tube 309 and finally flows into the second three-way pipe 14 through the third rotating joint 3012 for temperature detection.

[0049] For example, Figure 6 shown.

[0050] Two groups of mounting frames 21 are provided on the base 1, and a driving gear 23 is rotatably connected between the two groups of mounting frames 21. A driving motor 22 is provided on one group of mounting frames 21, and the output end of the driving motor 22 is transmission-connected to the center of the driving gear 23. The driving gear 23 is meshedly connected to the first outer gear ring 304. The outer wall of the liquid storage tank 8 is provided with a second outer gear ring 24, and the second outer gear ring 24 is meshedly connected to the first outer gear ring 304.

[0051] Specifically, the driving motor 22 drives the active gear 23 to rotate, so that the first outer gear ring 304 drives the cooling component 3 to rotate synchronously, and at the same time, the first outer gear ring 304 is meshed with the second outer gear ring 24, so that the second outer gear ring 24 drives the liquid storage tank 8 to rotate synchronously. When the cooling component 3 rotates, the heat dissipation speed of the coolant can be accelerated, and the cooling efficiency of the coolant can be improved. At the same time, by making the cooling component 3 and the liquid storage tank 8 rotate synchronously, when the outside temperature is too low, the coolant in the cooling component 3 and the liquid storage tank 8 can remain in a flowing state, thereby preventing the coolant from freezing due to the outside temperature being too low, which affects the cooling effect of the vacuum unit.

[0052] For example, Figure 7 and Figure 8 shown.

[0053] The liquid inlet end of the first circulation pump 5 is connected with a liquid taking pipe 25, and the liquid taking pipe 25 passes through the filter tank 4 and extends to the bottom end of the inner wall of the filter tank 4. Two groups of suction pumps 26 are arranged in the filter tank 4, and protective covers 27 are arranged outside the two groups of suction pumps 26. The liquid inlet ends of the two groups of suction pumps 26 are connected with suction pipes 28, and the bottom ends of the two groups of suction pipes 28 are respectively connected with the two groups of liquid outlet pipes 13, and the liquid outlet ends of the two groups of suction pumps 26 are connected with spray pipes 35. Two groups of filter screens 29 are arranged inside the filter tank 4, and the two groups of filter screens 29 are respectively arranged on the two groups of spray pipes 35. 5, two groups of filter screens 29 are respectively arranged on both sides of the liquid taking pipe 25, and the two groups of filter screens 29 are movably fitted with the inner wall of the filter tank 4, and two groups of slide grooves 30 are opened at the top and bottom of the inner wall of the filter tank 4, and the inner wall of the slide groove 30 is fixedly connected with a slide column 31, and a slider 32 is slidably connected to the slide column 31. A spring 33 is arranged between the slider 32 and the two side walls of the slide groove 30, and the spring 33 is sleeved on the slide column 31. A vibration frame 34 is fixedly connected to the slider 32, and the vibration frame 34 is detachably connected to one end of a group of filter screens 29;

[0054] Specifically, the coolant in the vacuum unit is drawn into the suction pump 26 through the suction pipe 28 by two groups of suction pumps 26, thereby accelerating the circulation speed of the coolant in the vacuum unit, and then sprayed to the surface of the filter 29 through the spray pipe 35 for filtration. At the same time, due to the impact force of the cooling sprayed out by the spray pipe 35, the filter 29 moves, and the tension of the spring 33 drives the filter 29 to shake, and the impurities remaining on the filter 29 are shaken off to the bottom end of the inner wall of the filter tank 4, so as to avoid clogging of the filter 29 and affect the filtering effect, thereby improving the service life of the filter 29. The coolant filtered by the filter 29 enters the first circulation pump 5 through the liquid collection pipe 25, and finally enters the cooling component 3 through the first three-way pipe 6 for cooling.

[0055] The integrated circulating liquid-cooled dry vacuum unit proposed by the present invention has the following working principle:

[0056] The cooling liquid stored in the liquid storage tank 8 enters the two groups of liquid inlet pipes 12 through a group of first rotating joints 17, and then enters the screw vacuum pump 10 and the Roots vacuum pump 11, so as to absorb the heat generated by the screw vacuum pump 10 and the Roots vacuum pump 11 when they are working, so as to achieve the effect of cooling the screw vacuum pump 10 and the Roots vacuum pump 11. The cooling water after absorbing the heat flows into the filter tank 4 through the liquid outlet pipe 13 for filtration. The filtered cooling liquid is pumped out by the first circulation pump 5 and flows into the first three-way pipe 6, and finally enters the cooling component 3 for cooling operation.

[0057] The coolant is allowed to enter the first annular tube 301 through the first three-way pipe 6 and then be diverted through several groups of diversion tubes 308 to accelerate the cooling speed of the coolant during circulation. The cooling fan 307 is driven to rotate by the fan motor 306 to accelerate the circulation speed of the coolant heat. At the same time, the heat dissipation area is increased by setting the annular fin plate 3010, thereby effectively improving the cooling efficiency of the coolant. The cooled coolant is converged through the second annular tube 309 and finally flows into the second three-way pipe 14 through the third rotating joint 3012 for temperature detection.

[0058] The coolant cooled by the cooling component 3 flows into the second three-way pipe 14, and the temperature of the coolant is detected by the temperature sensor. When the temperature of the coolant is reduced to a preset value, the three-way solenoid valve 15 is adjusted to allow the coolant to enter the liquid storage tank 8 through the first guide pipe 16 for storage. When the temperature of the coolant is not reduced to the preset value, the three-way solenoid valve 15 is adjusted to allow the coolant to be pumped into the first three-way pipe 6 through the second circulation pump 19, and finally enter the cooling component 3 to continue cooling. Through the circulation cooling operation of the coolant, the coolant reaches the preset temperature when entering the liquid storage tank 8, so that the coolant meets the cooling requirements of the screw vacuum pump 10 and the Roots vacuum pump 11, improves the cooling effect, and avoids the coolant temperature entering the screw vacuum pump 10 and the Roots vacuum pump 11 being too high, resulting in poor cooling effect and causing equipment damage.

[0059] By driving the driving motor 22 to drive the active gear 23 to rotate, the first outer gear ring 304 drives the cooling component 3 to rotate synchronously, and at the same time, the first outer gear ring 304 is meshed with the second outer gear ring 24, so that the second outer gear ring 24 drives the liquid storage tank 8 to rotate synchronously. When the cooling component 3 rotates, the heat dissipation speed of the coolant can be accelerated, and the cooling efficiency of the coolant can be improved. At the same time, by making the cooling component 3 and the liquid storage tank 8 rotate synchronously, when the outside temperature is too low, the coolant in the cooling component 3 and the liquid storage tank 8 can remain in a flowing state, thereby preventing the coolant from freezing due to the outside temperature being too low, affecting the cooling effect of the vacuum unit.

[0060] The coolant in the vacuum unit is drawn into the suction pump 26 through the suction pipe 28 by two sets of suction pumps 26, thereby accelerating the circulation speed of the coolant in the vacuum unit, and then sprayed to the surface of the filter screen 29 through the spray pipe 35 for filtration. At the same time, due to the impact of the cooling sprayed out by the spray pipe 35, the filter screen 29 moves, and the vibration frame 34 drives the filter screen 29 to shake through the tension of the spring 33, and the impurities remaining on the filter screen 29 are shaken off to the bottom end of the inner wall of the filter tank 4 to avoid clogging of the filter screen 29 and affect the filtering effect, thereby improving the service life of the filter screen 29. The coolant filtered by the filter screen 29 enters the first circulation pump 5 through the liquid collection pipe 25, and finally enters the cooling component 3 through the first three-way pipe 6 for cooling.

[0061] Based on the above-mentioned integrated circulating liquid-cooled dry vacuum unit, an embodiment of the present invention further proposes a method for using the integrated circulating liquid-cooled dry vacuum unit. Exemplarily, the method includes:

[0062] The coolant stored in the liquid storage tank is introduced into the running vacuum unit through the liquid inlet pipe to absorb the heat generated by the vacuum unit and cool the vacuum unit;

[0063] Turn on the suction pump to draw the coolant passing through the vacuum unit into the filter tank for filtration;

[0064] Turn on the first circulation pump to pump the filtered coolant into the first three-way pipe, and finally into the cooling assembly for cooling;

[0065] Turn on the fan motor to rotate the cooling fan, speed up the air circulation and improve the cooling efficiency of the coolant;

[0066] The cooled coolant enters the second three-way pipe, and the temperature sensor detects the temperature of the coolant and controls the adjustment of the three-way solenoid valve according to the temperature value;

[0067] When the coolant temperature drops to the preset value, adjust the three-way solenoid valve to allow the coolant to enter the storage tank for storage;

[0068] When the coolant temperature does not reach the preset value, the three-way solenoid valve is adjusted to allow the coolant to enter the second guide pipe;

[0069] The second circulation pump is turned on to allow the coolant to re-enter the first three-way pipe and then enter the cooling assembly for circulation cooling until the temperature of the coolant reaches a preset value and then enters the liquid storage tank.

[0070] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An integrated circulating liquid-cooled dry vacuum unit, comprising a base (1), characterized in that: Two groups of first rotating brackets (2) are fixedly connected to the top of the base (1), and a cooling component (3) is provided between the two groups of first rotating brackets (2); Two groups of second rotating brackets (7) are fixedly connected to the bottom end of the base (1), and a liquid storage tank (8) is provided between the two groups of second rotating brackets (7); Both ends of the liquid storage tank (8) are connected to a first rotating joint (17), and a group of the first rotating joints (17) are connected to a first flow guide pipe (16); The first flow guide pipe (16) is connected to a second three-way pipe (14), a three-way solenoid valve (15) is arranged on the second three-way pipe (14), and a temperature sensor is arranged in the second three-way pipe (14); The coolant cooled by the cooling assembly (3) flows into the second three-way pipe (14), the temperature of the coolant is detected by the temperature sensor, and the three-way solenoid valve (15) is controlled according to the temperature detection value to adjust the flow direction of the coolant, thereby performing a circulation cooling operation on the coolant; The cooling assembly (3) comprises a first annular tube (301) and a second annular tube (309); the first annular tube (301) is connected to a third flow guide tube (302); the third flow guide tube (302) is connected to a second rotating joint (303); the other end of the second rotating joint (303) is rotatably connected to a group of output ends of the first three-way tube (6); and the other end of the second rotating joint (303) is mutually connected to a group of output ends of the first three-way tube (6); the outer wall of the first annular tube (301) is provided with a first outer gear ring (304); the inner wall of the first annular tube (301) is fixedly connected to a transverse plate (305); a fan motor (306) is installed at the center of the transverse plate (305); and the output end of the fan motor (306) is drivingly connected to a cooling fan (307); The base (1) is provided with two groups of mounting frames (21), a driving gear (23) is rotatably connected between the two groups of mounting frames (21), a driving motor (22) is provided on one group of mounting frames (21), an output end of the driving motor (22) is drivingly connected to the center of the driving gear (23), the driving gear (23) is meshingly connected to the first outer gear ring (304), and the outer wall of the liquid storage tank (8) is provided with a second outer gear ring (24); The liquid inlet end of the first circulation pump (5) is connected to a liquid extraction pipe (25), the liquid extraction pipe (25) penetrates the filter tank (4) and then extends to the bottom end of the inner wall of the filter tank (4), two groups of suction pumps (26) are arranged in the filter tank (4), and protective covers (27) are arranged outside the two groups of suction pumps (26), the liquid inlet ends of the two groups of suction pumps (26) are connected to suction pipes (28), and the bottom ends of the two groups of suction pipes (28) are respectively connected to the two groups of liquid outlet pipes (13), and the inside of the filter tank (4) is provided with two groups of filter screens (29), the two groups of filter screens (29) are respectively arranged on both sides of the liquid extraction pipe (25), and the two groups of filter screens (29) are movably fitted with the inner wall of the filter tank (4); Two groups of slide grooves (30) are provided at the top and bottom of the inner wall of the filter tank (4); a slide column (31) is fixedly connected to the inner wall of the slide groove (30); a slider (32) is slidably connected to the slide column (31); a spring (33) is provided between the slider (32) and the two side walls of the slide groove (30); the spring (33) is sleeved on the slide column (31); a vibration frame (34) is fixedly connected to the slider (32); and the vibration frame (34) is detachably connected to one end of a group of filter screens (29).

2. The integrated circulating liquid-cooled dry vacuum unit according to claim 1 is characterized in that: A filter tank (4) is provided on the base (1), and a first circulation pump (5) is installed on the filter tank (4); a liquid outlet end of the first circulation pump (5) is connected to a first three-way pipe (6); an output end of the first three-way pipe (6) passes through the first rotating bracket (2) and is connected to the cooling component (3); a liquid inlet end of the second three-way pipe (14) is connected to the cooling component (3); and a group of output ends of the second three-way pipe (14) are connected to the first guide pipe (16).

3. The integrated circulating liquid-cooled dry vacuum unit according to claim 2 is characterized in that: The other output end of the second three-way pipe (14) is connected to a second flow guide pipe (18), the second flow guide pipe (18) is connected to a second circulation pump (19), the liquid outlet end of the second circulation pump (19) is connected to a circulation pipe (20), and the other end of the circulation pipe (20) is mutually connected to the first three-way pipe (6).

4. The integrated circulating liquid-cooled dry vacuum unit according to claim 2 is characterized in that: A mounting platform (9) is provided on one side of the base (1), and a screw vacuum pump (10) and a Roots vacuum pump (11) are mounted on the mounting platform (9); the screw vacuum pump (10) and the Roots vacuum pump (11) are both connected to a liquid inlet pipe (12); the two groups of the liquid inlet pipes (12) are both connected to the liquid storage tank (8); the screw vacuum pump (10) and the Roots vacuum pump (11) are both connected to a liquid outlet pipe (13); the top ends of the two groups of the liquid outlet pipes (13) penetrate the base (1) and are connected to the interior of the filter tank (4).

5. The integrated circulating liquid-cooled dry vacuum unit according to claim 1 is characterized in that A plurality of groups of flow dividers (308) are connected between the first annular tube (301) and the second annular tube (309); the plurality of groups of flow dividers (308) are distributed in an annular array with the central axis of the first annular tube (301) as the center; an annular fin plate (3010) is sleeved on the outer wall of the plurality of groups of the first annular tubes (301); a fourth flow guide tube (3011) is connected to the second annular tube (309); an output end of the fourth flow guide tube (3011) is connected to a third rotating joint (3012); the third rotating joint (3012) is rotatably connected to an input end of a second three-way tube (14); and the third rotating joint (3012) and the input end of the second three-way tube (14) are connected to each other.

6. A method for using the integrated circulating liquid-cooled dry vacuum unit according to any one of claims 1 to 5, characterized in that: The method of use includes: The coolant in the liquid storage tank is introduced into the running vacuum unit to cool the vacuum unit; The coolant passing through the inside of the vacuum unit is introduced into the cooling component for cooling; The cooled coolant enters the second three-way pipe, and the temperature sensor detects the temperature of the coolant and controls the adjustment of the three-way solenoid valve according to the temperature value; When the coolant temperature drops to the preset value, adjust the three-way solenoid valve to allow the coolant to enter the storage tank for storage; When the coolant temperature does not reach the preset value, adjust the three-way solenoid valve to allow the coolant to enter the cooling assembly for circulation cooling until the coolant temperature reaches the preset value and then enters the liquid storage tank.

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