Efficient energy-saving screw air compressor and using method thereof

Abstract

The invention belongs to the technical field of screw air compressors, and particularly relates to an efficient energy-saving screw air compressor and a using method thereof. Comprising a machine box and a machine body, the machine body is fixedly installed in the machine box, a temperature controller is installed at the bottom of an inner cavity of the machine box, a U-shaped pipe is embedded in an inner cavity of the temperature controller, the two ends of the U-shaped pipe are bent, the two ends of the U-shaped pipe communicate with an oil discharging pipe and an oil inlet pipe correspondingly, and the oil discharging pipe is located below the oil inlet pipe; the side, away from the oil discharging pipe, of the U-shaped pipe sequentially communicates with a first oil way branch pipe and a second oil way branch pipe from bottom to top. Through cooperation of the annular pipes I and the annular heat dissipation plate, passing lubricating oil can be shunted, so that the lubricating oil forms a thin layer when flowing in the annular heat dissipation plate, the contact area between the annular heat dissipation plate and air blown out by a fan is increased, meanwhile, heat of the lubricating oil in the annular heat dissipation plate is conveniently taken away by the air, and the heat dissipation efficiency is improved. And the rapid cooling effect is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of screw air compressors, in particular to a high-efficiency energy-saving screw air compressor and a use method thereof. Background Art

[0002] Screw air compressor, full name screw air compressor, is an air compressor that pressurizes gas through the mechanical movement of the master and slave screws. The basic structure of a screw air compressor is that a pair of mutually meshing spiral rotors are arranged in parallel in the compressor body. The rotor with convex teeth is called the male rotor or male screw, and the rotor with concave teeth in the pitch circle is called the female rotor or female screw. Generally, the male rotor is connected to the prime mover, and the male rotor drives the female rotor to rotate.

[0003] In the prior art, in order to maintain the normal operating temperature of the air compressor, the proportion of lubricating oil entering the radiator is generally adjusted through a temperature control valve to control the exhaust temperature of the machine head. However, the heat dissipation effect and function of the oil circuit radiator in the traditional air compressor are relatively simple. As a result, when the oil temperature is too high, even if the proportion of lubricating oil passing through the radiator can be adjusted, the oil temperature still cannot be cooled quickly, resulting in low cooling efficiency of the lubricating oil, which in turn causes the air compressor components to overheat, resulting in a decrease in the overall efficiency of the system. In severe cases, the air compressor may trip due to high temperature, which has a great impact on the normal operation of the system.

[0004] To this end, the present invention provides a high-efficiency energy-saving screw air compressor and a method of using the same. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art and solve the problem that in order to maintain the normal operating temperature of the air compressor, the proportion of lubricating oil entering the radiator is generally adjusted by a temperature control valve to control the exhaust temperature of the machine head, but the heat dissipation effect and function of the oil circuit radiator in the traditional air compressor are relatively simple, resulting in that when the oil temperature is too high, even if the proportion of lubricating oil passing through the radiator can be adjusted, the oil temperature still cannot be cooled quickly, resulting in low cooling efficiency of the lubricating oil, which in turn causes the air compressor components to overheat, resulting in reduced overall efficiency of the system, and in severe cases, the air compressor may trip due to high temperature, which greatly affects the normal operation of the system. The present invention proposes a high-efficiency and energy-saving screw air compressor and a method for using the same.

[0006] The technical solution applicable to the present invention for solving its technical problem is: the high-efficiency and energy-saving screw air compressor described in the present invention comprises a chassis and a body, the body is fixedly installed in the chassis, a temperature controller is installed at the bottom of the inner cavity of the chassis, a U-shaped tube is embedded in the inner cavity of the temperature controller, both ends of the U-shaped tube are bent, the two ends of the U-shaped tube are respectively connected with an oil drain pipe and an oil inlet pipe, the oil drain pipe is located below the oil inlet pipe, and the side of the U-shaped tube away from the oil drain pipe is connected with oil passages in sequence from bottom to top Branch pipe one and oil branch pipe two, an oil heat dissipation component is provided in the inner cavity of the chassis, the oil heat dissipation component is connected with both oil branch pipe one and oil branch pipe two, a valve one is fixedly installed on the side of the U-shaped tube away from the oil drain pipe, the valve one is located between the oil branch pipe one and the oil branch pipe two, the end of the oil branch pipe one close to the temperature controller is fixedly installed with valve two, the end of the oil branch pipe two close to the temperature controller is fixedly installed with valve three, and the end of the U-shaped tube close to the oil drain pipe is fixedly installed with a temperature sensor.

[0007] Preferably, the oil circuit heat dissipation assembly includes an annular tube 1, an annular heat sink and a fan, two fans are fixedly installed on the top of the chassis, a wind tube is fixedly connected to the inner wall of the chassis, the wind tube is adapted to a fan, a plurality of annular heat sinks are arranged in the wind tube, the diameters of the plurality of annular heat sinks increase successively, annular tubes 1 are arranged above and below the plurality of annular heat sinks, the annular tube 1 is connected to the inner cavity of the annular heat sink through a plurality of thin tubes 1, the end of the oil circuit branch pipe 1 away from the U-tube is connected to the annular tube 1 below the plurality of annular heat sinks, the end of the oil circuit branch pipe 2 away from the U-tube is connected to the plurality of annular tubes 1 above the plurality of annular heat sinks.

[0008] Preferably, an annular cold water plate is fixedly connected to both sides of the annular heat dissipation plate, a cold water cavity is formed between the annular cold water plate and the annular cold water plate, annular tube two is provided above and below the annular cold water plate, the annular tube two is connected to the cold water cavity via a capillary tube two, the annular tube two below the annular cold water plate is connected to the water outlet pipe, the annular tube two above the annular cold water plate is connected to the water inlet pipe, a water pipe radiator is installed on the outer wall of the wind tube, the water pipe radiator is adapted to one of the fans, the end of the water outlet pipe away from the annular tube two is connected to a connecting tube one, a water pump is installed at the bottom of the inner cavity of the chassis, the end of the connecting tube one away from the water outlet pipe is connected to the water pump, the water pipe radiator is connected to the water pump, the end of the water inlet pipe away from the annular tube two is fixedly connected to a connecting tube two, and the connecting tube two is connected to the water pipe radiator.

[0009] Preferably, the water tube radiator is composed of a plurality of horizontal vortex tubes and a U-shaped connecting pipe, the water pump is fixedly connected to the lowest vortex tube in the water tube radiator, and the second connecting pipe is fixedly connected to the highest vortex tube in the water tube radiator.

[0010] Preferably, annular heat sinks are fixedly connected to both side outer walls of the annular heat sink, one end of the annular heat sink away from the annular heat sink extends to the outside of the annular cold water plate, and the fins on the annular heat sink are staggered.

[0011] Preferably, a mounting plate is fixedly connected to the inner wall of the air cylinder, the mounting plate is located above the oil branch pipe 2, a motor is fixedly installed on the top of the mounting plate, the output end of the motor is fixedly connected to a rotating shaft, a gear 1 is fixedly connected to the rotating shaft, one side of the gear 1 is meshingly connected with the gear 2, a rotating rod is fixedly connected to the gear 2, the bottom end of the rotating rod extends to the bottom of the mounting plate and is fixedly connected to two support rods, a spray plate is provided on the side of the annular cold water plate away from the annular heat dissipation plate, the spray plate close to the side of the rotating rod is fixedly connected to the support rod, the spray plates are fixedly connected by a connecting rod, the top end of the rotating rod is rotatably connected to a water supply pipe, the water supply pipe is communicated with the inner cavity of the rotating rod, the inner cavity of the rotating rod is communicated with the inner cavity of the support rod, the inner cavity of the support rod is communicated with the inner cavity of the spray plate close to the side of the rotating rod, and the inner cavity of the spray plate is communicated with the inner cavity of the connecting rod.

[0012] Preferably, the spraying area of ​​the spray plate increases gradually from the center of the air duct to the outside.

[0013] Preferably, a funnel groove is provided at the bottom of the inner cavity of the chassis, the funnel groove is located directly below the wind duct, the area of ​​the funnel groove is larger than the area of ​​the bottom of the wind duct, a drain pipe is fixed to the bottom of the funnel groove, and one end of the drain pipe away from the funnel groove extends to the outside of the chassis.

[0014] Preferably, an electric heater is fixedly mounted on one end of the U-shaped tube close to the oil inlet pipe.

[0015] A method for using a high-efficiency energy-saving screw air compressor, which is applicable to the high-efficiency energy-saving screw air compressor described above, and comprises the following steps:

[0016] S1: When the temperature of the lubricating oil is higher than the set normal temperature, valves 1, 2 and 3 are opened at the same time, and a part of the lubricating oil flows directly from the U-shaped tube to the oil inlet pipe, and the other part of the lubricating oil flows from the U-shaped tube into the oil branch pipe 1, and after being cooled by the oil cooling component, it returns to the U-shaped tube again through the oil branch pipe 2, and finally enters the oil inlet pipe and returns to the machine body;

[0017] S2: When the temperature sensor senses that the overall oil temperature is always higher than the set normal temperature, valve 1 is closed, valves 2 and 3 are opened, and the lubricating oil entering the U-shaped tube all passes through the oil branch pipe 1 and enters the oil cooling assembly for cooling, and finally returns to the U-shaped tube from the oil branch pipe 2;

[0018] S3: When the lubricating oil is still higher than the set temperature after all the lubricating oil passes through the oil circuit heat dissipation component, the motor is started, and the water supply device is connected to the water supply pipe, so that the water flows through the rotating rod, the support rod and the connecting rod in sequence, and finally sprays out from the spray plate, so as to cool the annular cold water plate and the annular heat sink again, and further reduce the temperature of the lubricating oil;

[0019] S4: When the outside temperature is low and the temperature of the lubricating oil after compression and friction of the screw is still lower than the set temperature, the lubricating oil passing through the U-tube can be heated by an electric heater.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. The high-efficiency energy-saving screw air compressor and the use method thereof described in the present invention can divert the passing lubricating oil through the cooperation of multiple annular tubes and annular heat sinks, so that the lubricating oil presents a thin layer when flowing in the annular heat sink, while increasing the contact area between the annular heat sink and the wind blown by the fan, so that the wind can take away the heat of the lubricating oil in the annular heat sink, thereby achieving a rapid cooling effect.

[0022] 2. The present invention discloses a high-efficiency energy-saving screw air compressor and a method of using the same. By arranging annular cold water plates on both sides of the annular heat sink, and by using a water pump in conjunction with a water outlet pipe, a water inlet pipe, connecting pipe one, connecting pipe two and a water pipe radiator, cold water can flow in a cold water cavity formed between the annular cold water plate and the annular heat sink, thereby quickly taking away the heat of the lubricating oil in the annular heat sink. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] Figure 1 It is a stereogram of the present invention as a whole;

[0025] Figure 2 is a side view of the chassis of the present invention;

[0026] Figure 3 is a cross-sectional view of the temperature controller of the present invention;

[0027] Figure 4 It is a partial cross-sectional view of the air duct of the present invention;

[0028] Figure 5 yes Figure 4 A partial enlarged view of the middle part;

[0029] Figure 6 It is an exploded view of the water pipe radiator of the present invention;

[0030] Figure 7 It is a schematic diagram of a ring pipe of the present invention;

[0031] Figure 8 It is a schematic diagram of the mounting plate of the present invention;

[0032] Fig. 9 is a schematic diagram of an annular heat sink of the present invention;

[0033] Fig.10 is a cross-sectional view of the annular cold water plate of the present invention;

[0034] Fig.11 is a schematic diagram of an annular heat sink of the present invention;

[0035] In the figure: 1, chassis; 2, machine body; 3, oil drain pipe; 4, oil inlet pipe; 5, temperature controller; 6, U-shaped pipe; 7, oil branch pipe 1; 8, oil branch pipe 2; 9, valve 1; 10, valve 2; 11, valve 3; 12, electric heater; 13, annular pipe 1; 14, annular heat sink; 15, annular cold water plate; 16, water outlet pipe; 17, water inlet pipe; 18, annular pipe 2; 19, connecting pipe 1; 20, water pump; 21, water pipe radiator; 22, connecting pipe 2; 23, annular heat sink; 24, mounting plate; 25, motor; 26, rotating shaft; 27, gear 1; 28, gear 2; 29, rotating rod; 30, supporting rod; 31, spray plate; 32, connecting rod; 33, water supply pipe; 34, fan; 35, air duct; 36, funnel trough; 37, drain pipe. DETAILED DESCRIPTION

[0036] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0037] like Figure 1-Figure 11As shown, an efficient and energy-saving screw air compressor described in an embodiment of the present invention comprises a chassis 1 and a body 2, wherein the body 2 is fixedly installed in the chassis 1, a temperature controller 5 is installed at the bottom of the inner cavity of the chassis 1, a U-shaped tube 6 is embedded in the inner cavity of the temperature controller 5, both ends of the U-shaped tube 6 are bent, and both ends of the U-shaped tube 6 are connected with an oil drain pipe 3 and an oil inlet pipe 4 respectively, the oil drain pipe 3 is located below the oil inlet pipe 4, and the side of the U-shaped tube 6 away from the oil drain pipe 3 is connected with an oil branch pipe 1 7 and an oil branch pipe 2 8 in sequence from bottom to top, an oil heat dissipation component is provided in the inner cavity of the chassis 1, and the oil heat dissipation component is connected with both the oil branch pipe 1 7 and the oil branch pipe 2 8, and the U-shaped tube 6 is away from the oil drain pipe 3. A valve 1 9 is fixedly installed on one side of the oil circuit branch pipe 1 7, and the valve 1 9 is located between the oil circuit branch pipe 1 7 and the oil circuit branch pipe 2 8. A valve 2 10 is fixedly installed on the end of the oil circuit branch pipe 1 7 close to the temperature controller 5, and a valve 3 11 is fixedly installed on the end of the oil circuit branch pipe 2 8 close to the temperature controller 5. A temperature sensor is fixedly installed on the end of the U-shaped tube 6 close to the oil discharge pipe 3. When working, the oil discharge pipe 3 transports the lubricating oil compressed by the screw to the U-shaped tube 6 in the temperature controller 5, and the temperature of the lubricating oil is sensed in real time by the temperature sensor on the U-shaped tube 6. When the temperature of the lubricating oil is higher than the set normal temperature, the valve 1 9, the valve 2 10 and the valve 3 11 are opened at the same time, and a part of the lubricating oil is The lubricating oil flows directly from the U-tube 6 to the oil inlet pipe 4, and another part of the lubricating oil flows from the U-tube 6 into the oil branch pipe 1 7, and after being cooled by the oil heat dissipation component, it returns to the U-tube 6 again through the oil branch pipe 2 8, and finally enters the oil inlet pipe 4 and returns to the body 2. The overall oil temperature of the lubricating oil can be reduced after mixing with a part of the cooled lubricating oil. When the temperature sensor senses that the overall oil temperature is always higher than the set normal temperature, the valve 1 9 is closed, the valve 2 10 and the valve 3 11 are opened, and the lubricating oil entering the U-tube 6 all passes through the oil branch pipe 1 7 into the oil heat dissipation component for cooling, and finally returns to the U-tube 6 from the oil branch pipe 2 8, and is cooled by the oil heat dissipation component. The component can quickly reduce the overall oil temperature of the lubricating oil, solving the problem in the prior art that in order to maintain the normal operating temperature of the air compressor, the proportion of lubricating oil entering the radiator is generally adjusted through a temperature control valve to control the exhaust temperature of the machine head. However, the heat dissipation effect and function of the oil circuit radiator in the traditional air compressor are relatively simple, resulting in that when the oil temperature is too high, even if the proportion of lubricating oil passing through the radiator can be adjusted, the oil temperature still cannot be cooled quickly, resulting in low cooling efficiency of the lubricating oil, which in turn will cause the air compressor components to overheat, resulting in a decrease in the overall efficiency of the system. In severe cases, the air compressor may trip due to high temperature, which greatly affects the normal operation of the system.

[0038] The oil circuit heat dissipation component includes an annular tube 13, an annular heat sink 14 and a fan 34. Two fans 34 are fixedly installed on the top of the chassis 1. A wind tube 35 is fixedly connected to the inner wall of the chassis 1. The wind tube 35 is adapted to one fan 34. A plurality of annular heat sinks 14 are arranged in the wind tube 35. The diameters of the plurality of annular heat sinks 14 increase successively. An annular tube 13 is arranged above and below the plurality of annular heat sinks 14. The annular tube 13 is connected to the inner cavity of the annular heat sink 14 through a plurality of thin tubes 1. One end of the oil circuit branch pipe 7 away from the U-shaped pipe 6 is connected to the annular tube 13 below the plurality of annular heat sinks 14. One end of the oil circuit branch pipe 28 away from the U-shaped pipe 6 is connected to the plurality of annular heat sinks 14 above. shaped tube 13 is connected; when working, after the lubricating oil enters the oil branch pipe 7, the lubricating oil will pass through the oil branch pipe 7 into the multiple annular pipes 13 located below, and enter the inner cavity of the annular heat sink 14 from the annular pipe 13, and finally merge into the oil branch pipe 2 8 from the upper annular pipe 13, and return to the U-shaped tube 6 again. Through the cooperation of the multiple annular pipes 13 and the annular heat sink 14, the passing lubricating oil can be diverted, so that the lubricating oil presents a thin layer when flowing in the annular heat sink 14, while increasing the contact area between the annular heat sink 14 and the wind blown by the fan 34, it is convenient for the wind to take away the heat of the lubricating oil in the annular heat sink 14, so as to achieve the effect of rapid cooling.

[0039] Annular cold water plates 15 are fixedly connected to both sides of the annular heat sink 14, and a cold water cavity is formed between the annular cold water plates 15 and the annular heat sink 14. Annular pipe 2 18 is provided above and below the annular cold water plate 15, and the annular pipe 2 18 is connected to the cold water cavity through a thin pipe 2. The annular pipe 2 18 below the annular cold water plate 15 is connected to the water outlet pipe 16, and the annular pipe 2 18 above the annular cold water plate 15 is connected to the water inlet pipe 17. A water pipe radiator 21 is installed on the outer wall of the air duct 35, and the water pipe radiator 21 is adapted to one of the fans 34. One end of the water outlet pipe 16 away from the annular pipe 2 18 is connected to a connecting pipe 19. A water pump 20 is installed at the bottom of the inner cavity of the chassis 1, and one end of the connecting pipe 19 away from the water outlet pipe 16 is connected to the water pump 20, and the water pipe radiator 21 is connected to the water pump 20. One end of the water inlet pipe 17 away from the annular pipe 2 18 is fixedly connected with a connecting pipe 22, and the connecting pipe 22 is connected to the water pipe radiator 21. When working, by arranging annular cold water plates 15 on both sides of the annular heat sink 14, and cooperating with the water outlet pipe 16, the water inlet pipe 17, the connecting pipe 19, the connecting pipe 22 and the water pipe radiator 21 through the water pump 20, the cold water can flow in the cold water cavity formed between the annular cold water plate 15 and the annular heat sink 14, and quickly take away the heat of the lubricating oil in the annular heat sink 14. In addition, since the lubricating oil is in a state of flowing from bottom to top in the annular heat sink 14, and the water in the cold water cavity is in a state of flowing from top to bottom, the relative flow directions between the cold water and the lubricating oil are opposite, which is conducive to more efficient heat exchange and further improves the cooling efficiency of the lubricating oil.

[0040] The water tube radiator 21 is composed of a plurality of horizontal vortex tubes and a U-shaped connecting pipe. The water pump 20 is fixedly connected to the lowest vortex tube in the water tube radiator 21, and the connecting pipe 22 is fixedly connected to the highest vortex tube in the water tube radiator 21. When working, when the cold water in the cold water cavity that has absorbed the heat of the lubricating oil enters the water tube radiator 21 under the suction action of the water pump 20, it will flow upward layer by layer from the lowest vortex tube. During this process, the upper fan 34 will blow air downward and take away the heat of the cold water in the vortex tube, so that the cold water can flow back to the cold water cavity again to cool the lubricating oil in the annular heat sink 14.

[0041] Annular heat sinks 23 are fixedly connected to the outer walls of both sides of the annular heat sink 14. One end of the annular heat sink 23 away from the annular heat sink 14 extends to the outside of the annular cold water plate 15, and the fins on the annular heat sink 23 are staggered. During operation, by arranging the annular heat sink 23 on the outside of the annular heat sink 14, it is convenient to quickly conduct the heat of the lubricating oil to the cold water cavity, and then it is convenient for the cold water to absorb the heat of the lubricating oil. By designing the fins on the annular heat sink 23 to be staggered, the water flow can fully contact the fins when flowing from top to bottom, avoiding a part of the water flow directly flowing away from the gap, and one end of the annular heat sink 23 extends to the outside of the annular cold water plate 15, so as to cooperate with the fan 34 above to cool it.

[0042] The inner wall of the air cylinder 35 is fixedly connected with a mounting plate 24, which is located above the oil branch pipe 28. A motor 25 is fixedly installed on the top of the mounting plate 24. A rotating shaft 26 is fixedly connected to the output end of the motor 25. A gear 1 27 is fixedly connected to the rotating shaft 26. A gear 28 is meshedly connected to one side of the gear 1 27. A rotating rod 29 is fixedly connected to the gear 28. The bottom end of the rotating rod 29 extends to the bottom of the mounting plate 24 and is fixedly connected to two support rods 30. The annular cold water plate 1 A spray plate 31 is provided on the side away from the annular heat sink 14. The spray plate 31 on the side close to the rotating rod 29 is fixedly connected to the support rod 30. The spray plates 31 are fixedly connected by a connecting rod 32. The top of the rotating rod 29 is rotatably connected to a water supply pipe 33. The water supply pipe 33 is connected to the inner cavity of the rotating rod 29. The inner cavity of the rotating rod 29 is connected to the inner cavity of the support rod 30. The inner cavity of the support rod 30 is connected to the inner cavity of the spray plate 31 on the side close to the rotating rod 29. The inner cavity of the spray plate 31 is connected to the inner cavity of the rotating rod 29. The cavities are all connected to the inner cavity of the connecting rod 32; during operation, when the lubricating oil is still higher than the set temperature after passing through the oil circuit heat dissipation component, the water supply equipment is connected to the water supply pipe 33, so that the water flows through the rotating rod 29, the support rod 30 and the connecting rod 32 in sequence, and finally sprays out from the spray plate 31, and then drives the gear 1 27 on the rotating shaft 26 to rotate through the motor 25, so that the gear 28 drives the rotating rod 29 to rotate, so that the spray plate 31 rotates accordingly, so as to realize the cooling of the annular cold water plate 15 and the annular heat sink 23 again, so as to further improve the cooling effect of the lubricating oil, and controls the rotating rod 29 through the motor 25 to drive the spray plate 31 to swing back and forth, but does not contact the oil circuit branch pipe 1 7 and the oil circuit branch pipe 2 8. In addition, after the annular heat sink 23 has been used for a long time, the annular heat sink 23 exposed on the outside can be flushed through the spray plate 31 to avoid dust accumulation on the fins of the annular heat sink 23 and reduce the heat dissipation effect.

[0043] The spraying area of ​​the spray plate 31 increases gradually from the center of the air duct 35 to the outside; when working, the area design of the spray plate 31 allows the spray plate 31 to correspond to the diameters of the annular cold water plate 15 and the annular heat sink 23, so as to better achieve the cooling effect.

[0044] A funnel groove 36 is provided at the bottom of the inner cavity of the chassis 1. The funnel groove 36 is located directly below the wind tube 35. The area of ​​the funnel groove 36 is larger than the area of ​​the bottom of the wind tube 35. A drain pipe 37 is fixedly connected to the bottom of the funnel groove 36. One end of the drain pipe 37 away from the funnel groove 36 extends to the outside of the chassis 1. During operation, by arranging the funnel groove 36 and the drain pipe 37 below the wind tube 35, it is convenient to directly discharge the waste water after spraying and flushing, so as to avoid the accumulation of waste water in the chassis 1 and damage to electrical components.

[0045] An electric heater 12 is fixedly installed at one end of the U-shaped tube 6 close to the oil inlet pipe 4; during operation, when the outside temperature is low and the temperature of the lubricating oil is still lower than the set temperature after the compression and friction of the screw, the electric heater 12 can heat the lubricating oil passing through the U-shaped tube 6 to avoid the phenomenon of emulsification due to the lubricating oil being too low in temperature, thereby ensuring the performance and service life of the lubricating oil.

[0046] A method for using a high-efficiency energy-saving screw air compressor, which is applicable to the above-mentioned high-efficiency energy-saving screw air compressor, and the method for using comprises the following steps:

[0047] S1: When the temperature of the lubricating oil is higher than the set normal temperature, valve 1 9, valve 2 10 and valve 3 11 are opened at the same time, a part of the lubricating oil flows directly from the U-shaped tube 6 to the oil inlet pipe 4, and another part of the lubricating oil flows from the U-shaped tube 6 into the oil branch pipe 1 7, and after being cooled by the oil cooling component, it returns to the U-shaped tube 6 through the oil branch pipe 2 8, and finally enters the oil inlet pipe 4 to return to the body 2;

[0048] S2: When the temperature sensor senses that the overall oil temperature is always higher than the set normal temperature, valve 1 9 is closed, valve 2 10 and valve 3 11 are opened, and the lubricating oil entering the U-shaped tube 6 all passes through the oil branch pipe 1 7 into the oil cooling assembly for cooling, and finally returns to the U-shaped tube 6 from the oil branch pipe 2 8;

[0049] S3: When the lubricating oil is still higher than the set temperature after all the lubricating oil passes through the oil circuit heat dissipation component, the motor 25 is started, and the water supply device is connected to the water supply pipe 33, so that the water flows through the rotating rod 29, the support rod 30 and the connecting rod 32 in sequence, and finally sprays out from the spray plate 31, so as to cool the annular cold water plate 15 and the annular heat sink 23 again, and further reduce the temperature of the lubricating oil;

[0050] S4: When the outside temperature is low and the temperature of the lubricating oil after the screw compression and friction is still lower than the set temperature, the lubricating oil passing through the U-shaped tube 6 can be heated by the electric heater 12.

[0051] Working principle: the oil discharge pipe 3 transports the lubricating oil compressed by the screw to the U-shaped tube 6 in the temperature controller 5, and the temperature of the lubricating oil is sensed in real time by the temperature sensor on the U-shaped tube 6. When the temperature of the lubricating oil is higher than the set normal temperature, valve one 9, valve two 10 and valve three 11 are opened at the same time, and a part of the lubricating oil flows directly from the U-shaped tube 6 to the oil inlet pipe 4, and the other part of the lubricating oil enters the oil branch pipe one 7 from the U-shaped tube 6, and after being cooled by the oil circuit heat dissipation component, it returns to the U-shaped tube 6 again through the oil branch pipe two 8, and finally enters the oil inlet pipe 4 and returns to the body 2. The overall oil temperature of the lubricating oil can be lowered after mixing with a part of the cooled lubricating oil. When the temperature sensor senses that the overall oil temperature is always higher than the set normal temperature, the valve 19 is closed, valve 2 10 and valve 3 11 are opened, and all the lubricating oil entering the U-shaped tube 6 enters the oil cooling assembly through the oil branch pipe 1 7 for cooling, and finally returns to the U-shaped tube 6 from the oil branch pipe 2 8. The overall oil temperature of the lubricating oil can be quickly reduced through the oil cooling assembly. After the lubricating oil enters the oil branch pipe 1 7, it will pass through the oil branch pipe 1 7 and enter the multiple annular tubes 13 located below. The lubricating oil enters the inner cavity of the annular heat sink 14 from the annular tube 13, and finally merges into the oil branch pipe 2 8 from the upper annular tube 13, and returns to the U-shaped tube 6 again. The cooperation of the multiple annular tubes 13 and the annular heat sink 14 can divert the passing lubricating oil, so that the lubricating oil presents a thin film when flowing in the annular heat sink 14. A thin layer is formed, which increases the contact area between the annular heat sink 14 and the wind blown by the fan 34, and at the same time facilitates the wind to take away the heat of the lubricating oil in the annular heat sink 14, thereby achieving a rapid cooling effect. By arranging annular cold water plates 15 on both sides of the annular heat sink 14, and by using a water pump 20 to cooperate with a water outlet pipe 16, a water inlet pipe 17, a connecting pipe 19, a connecting pipe 22 and a water pipe radiator 21, cold water can flow in a cold water cavity formed between the annular cold water plate 15 and the annular heat sink 14, and quickly take away the heat of the lubricating oil in the annular heat sink 14. In addition, since the lubricating oil is in a state of flowing from bottom to top in the annular heat sink 14, and the water in the cold water cavity is in a state of flowing from top to bottom, the relative flow directions of the cold water and the lubricating oil are opposite. On the contrary, it is conducive to more efficient heat exchange and further improves the cooling efficiency of the lubricating oil. When the cold water that has absorbed the heat of the lubricating oil enters the water pipe radiator 21 under the suction action of the water pump 20, it will flow upward layer by layer from the lowest vortex tube. In this process, the fan 34 above will blow air downward and take away the heat of the cold water in the vortex tube, so that the cold water can flow back to the cold water cavity again to cool the lubricating oil in the annular heat sink 14. By arranging annular heat sinks 23 on the outer side of the annular heat sink 14, it is convenient to quickly conduct the heat of the lubricating oil to the cold water cavity, and then it is convenient for the cold water to absorb the heat of the lubricating oil. By designing the fins on the annular heat sink 23 to be staggered, the water flow can fully contact the fins when flowing from top to bottom.To prevent part of the water flow from flowing directly from the gap, one end of the annular heat sink 23 extends to the outside of the annular cold water plate 15, so as to cooperate with the fan 34 above to cool it. When the lubricating oil is still higher than the set temperature after passing through the oil circuit heat dissipation component, the water supply pipe 33 is connected to an external water supply device, so that the water flows through the rotating rod 29, the support rod 30 and the connecting rod 32 in sequence, and finally sprays out from the spray plate 31, and then drives the gear 1 27 on the rotating shaft 26 to rotate through the motor 25, so that the gear 2 28 drives the rotating rod 29 to rotate, so that the spray plate 31 rotates accordingly, so as to realize the cooling of the annular cold water plate 15 and the annular heat sink 23 again, so as to further improve the cooling effect of the lubricating oil, and controls the rotating rod 29 through the motor 25 to drive the spray plate 31 to swing back and forth The annular heat sink 23 rotates dynamically, but does not contact the oil branch pipe 1 7 and the oil branch pipe 2 8. In addition, after the annular heat sink 23 has been used for a long time, the annular heat sink 23 exposed on the outside can be flushed through the spray plate 31 to avoid dust accumulation on the fins of the annular heat sink 23 and reduce the heat dissipation effect. By arranging a funnel groove 36 and a drain pipe 37 below the wind tube 35, it is convenient to directly discharge the waste water after the spray flushing, and avoid the accumulation of waste water in the chassis 1 to damage the electrical components. When the outside temperature is low and the temperature of the lubricating oil is still lower than the set temperature after the screw compression friction, the electric heater 12 can heat the lubricating oil passing through the U-tube 6 to avoid the phenomenon of emulsification due to the low temperature of the lubricating oil, thereby ensuring the performance and service life of the lubricating oil.

[0052] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0053] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0054] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A high-efficiency and energy-saving screw air compressor, characterized in that: The invention comprises a chassis (1) and a body (2), wherein the body (2) is fixedly installed in the chassis (1), a temperature controller (5) is installed at the bottom of the inner cavity of the chassis (1), a U-shaped tube (6) is embedded in the inner cavity of the temperature controller (5), both ends of the U-shaped tube (6) are bent, and the two ends of the U-shaped tube (6) are respectively connected to an oil drain pipe (3) and an oil inlet pipe (4), the oil drain pipe (3) is located below the oil inlet pipe (4), and the side of the U-shaped tube (6) away from the oil drain pipe (3) is connected to an oil branch pipe 1 (7) and an oil branch pipe 2 (8) in sequence from bottom to top, and the inner cavity of the chassis (1) is provided with a temperature controller (5), wherein the temperature controller (5 ... An oil circuit heat dissipation component is provided in the cavity, and the oil circuit heat dissipation component is connected to both the oil circuit branch pipe 1 (7) and the oil circuit branch pipe 2 (8). A valve 1 (9) is fixedly installed on the side of the U-shaped pipe (6) away from the oil drain pipe (3), and the valve 1 (9) is located between the oil circuit branch pipe 1 (7) and the oil circuit branch pipe 2 (8). A valve 2 (10) is fixedly installed on the end of the oil circuit branch pipe 1 (7) close to the temperature controller (5), and a valve 3 (11) is fixedly installed on the end of the oil circuit branch pipe 2 (8) close to the temperature controller (5). A temperature sensor is fixedly installed on the end of the U-shaped pipe (6) close to the oil drain pipe (3).

2. The high-efficiency energy-saving screw air compressor according to claim 1, characterized in that: The oil circuit heat dissipation component comprises an annular tube (13), an annular heat sink (14) and a fan (34). Two fans (34) are fixedly mounted on the top of the chassis (1). A wind tube (35) is fixedly connected to the inner wall of the chassis (1). The wind tube (35) is adapted to one fan (34). A plurality of annular heat sinks (14) are arranged in the wind tube (35). The diameters of the plurality of annular heat sinks (14) increase successively. An annular tube (13) is arranged above and below the plurality of annular heat sinks (14). The annular tube (13) is connected to the inner cavity of the annular heat sink (14) through a plurality of thin tubes (1). One end of the oil circuit branch tube (7) away from the U-shaped tube (6) is connected to the annular tube (13) below the plurality of annular heat sinks (14). One end of the oil circuit branch tube (8) away from the U-shaped tube (6) is connected to the annular tube (13) above the plurality of annular heat sinks (14).

3. The high-efficiency energy-saving screw air compressor according to claim 2, characterized in that: An annular cold water plate (15) is fixedly connected to both sides of the annular heat sink (14), a cold water cavity is formed between the annular cold water plate (15) and the annular heat sink (14), an annular pipe (18) is provided above and below the annular cold water plate (15), the annular pipe (18) and the cold water cavity are connected via a capillary pipe (2), the annular pipe (18) below the annular cold water plate (15) is connected to the water outlet pipe (16), the annular pipe (18) above the annular cold water plate (15) is connected to the water inlet pipe (17), and a water pipe heat sink is installed on the outer wall of the wind tube (35). The water pipe radiator (21) is adapted to one of the fans (34); one end of the water outlet pipe (16) away from the annular pipe (18) is connected to a connecting pipe (19); a water pump (20) is installed at the bottom of the inner cavity of the chassis (1); one end of the connecting pipe (19) away from the water outlet pipe (16) is connected to the water pump (20); the water pipe radiator (21) is connected to the water pump (20); one end of the water inlet pipe (17) away from the annular pipe (18) is fixedly connected to a connecting pipe (22); the connecting pipe (22) is connected to the water pipe radiator (21).

4. The high-efficiency energy-saving screw air compressor according to claim 3 is characterized in that: The water tube radiator (21) is composed of a plurality of horizontal vortex tubes and a U-shaped connecting pipe. The water pump (20) is fixedly connected to the lowest vortex tube in the water tube radiator (21), and the second connecting pipe (22) is fixedly connected to the highest vortex tube in the water tube radiator (21).

5. The high-efficiency energy-saving screw air compressor according to claim 4, characterized in that: Annular heat sinks (23) are fixedly connected to the outer walls on both sides of the annular heat sink (14), one end of the annular heat sink (23) away from the annular heat sink (14) extends to the outside of the annular cold water plate (15), and the fins on the annular heat sink (23) are all distributed in a staggered manner.

6. The high-efficiency energy-saving screw air compressor according to claim 5, characterized in that: A mounting plate (24) is fixedly connected to the inner wall of the wind tube (35), the mounting plate (24) is located above the oil branch pipe 2 (8), a motor (25) is fixedly installed on the top of the mounting plate (24), the output end of the motor (25) is fixedly connected to a rotating shaft (26), a gear 1 (27) is fixedly connected to the rotating shaft (26), one side of the gear 1 (27) is meshingly connected to a gear 2 (28), a rotating rod (29) is fixedly connected to the gear 2 (28), the bottom end of the rotating rod (29) extends to the bottom of the mounting plate (24) and is fixedly connected to two support rods (30), the annular cold water plate (15) is away from the annular A spray plate (31) is provided on one side of the heat dissipation plate (14); the spray plate (31) on the side close to the rotating rod (29) is fixedly connected to the support rod (30); the spray plates (31) are fixedly connected to each other via a connecting rod (32); a water supply pipe (33) is rotatably connected to the top end of the rotating rod (29); the water supply pipe (33) is communicated with the inner cavity of the rotating rod (29); the inner cavity of the rotating rod (29) is communicated with the inner cavity of the support rod (30); the inner cavity of the support rod (30) is communicated with the inner cavity of the spray plate (31) on the side close to the rotating rod (29); and the inner cavity of the spray plate (31) is communicated with the inner cavity of the connecting rod (32).

7. The high-efficiency energy-saving screw air compressor according to claim 6, characterized in that: The spraying area of ​​the spray plate (31) increases gradually from the center of the air cylinder (35) toward the outside.

8. The high-efficiency energy-saving screw air compressor according to claim 7, characterized in that: A funnel groove (36) is provided at the bottom of the inner cavity of the chassis (1); the funnel groove (36) is located directly below the air cylinder (35); the area of ​​the funnel groove (36) is larger than the area of ​​the bottom of the air cylinder (35); a drainage pipe (37) is fixedly connected to the bottom of the funnel groove (36); one end of the drainage pipe (37) away from the funnel groove (36) extends to the outside of the chassis (1).

9. The high-efficiency energy-saving screw air compressor according to claim 8, characterized in that: An electric heater (12) is fixedly mounted on one end of the U-shaped tube (6) close to the oil inlet pipe (4).

10. A method for using a high-efficiency energy-saving screw air compressor, characterized in that: The method of use is applicable to a high-efficiency energy-saving screw air compressor as described in any one of claims 1 to 9, and the method of use comprises the following steps: S1: When the temperature of the lubricating oil is higher than the set normal temperature, valve 1 (9), valve 2 (10) and valve 3 (11) are opened simultaneously, and a portion of the lubricating oil flows directly from the U-shaped tube (6) into the oil inlet pipe (4), and another portion of the lubricating oil flows from the U-shaped tube (6) into the oil branch pipe 1 (7), and after being cooled by the oil cooling assembly, it returns to the U-shaped tube (6) through the oil branch pipe 2 (8), and finally enters the oil inlet pipe (4) and returns to the machine body (2); S2: When the temperature sensor senses that the overall oil temperature is always higher than the set normal temperature, valve 1 (9) is closed, valve 2 (10) and valve 3 (11) are opened, and the lubricating oil entering the U-shaped tube (6) all passes through the oil branch pipe 1 (7) into the oil cooling assembly for cooling, and finally returns to the U-shaped tube (6) from the oil branch pipe 2 (8); S3: When the lubricating oil is still higher than the set temperature after all of it has passed through the oil circuit heat dissipation component, the motor (25) is started, and an external water supply device is connected through the water supply pipe (33), so that water flows through the rotating rod (29), the support rod (30) and the connecting rod (32) in sequence, and finally sprays out from the spray plate (31), thereby achieving a further cooling of the annular cold water plate (15) and the annular heat sink (23), thereby further reducing the temperature of the lubricating oil; S4: When the outside temperature is low and the temperature of the lubricating oil after the compression and friction of the screw is still lower than the set temperature, the lubricating oil passing through the U-shaped tube (6) can be heated by the electric heater (12).

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