A zero-gas-consumption screw compression heat regeneration adsorption air dryer

Abstract

The present invention relates to the technical field of adsorption dryers, and specifically to a zero-gas-consumption screw compression heat regeneration adsorption air dryer, comprising an adsorption tank 1, an adsorption tank 2, a control box and a waste heat recovery heating device. A bottom plate is provided below the adsorption tank 1 and the adsorption tank 2, and support plates are fixedly installed on the top of the bottom plate near both sides. The control box is fixedly installed between the outer walls of the adsorption tank 1 and the adsorption tank 2, and a supporting rotation mechanism is respectively provided between the two support plates and the adsorption tank 1 and the adsorption tank 2. By providing a waste heat recovery heating device, hot oil generated by the air compressor screw compression can be used to heat an external air source to achieve heating, dehydration and regeneration of the adsorbent in the adsorption tank 1 or the adsorption tank 2, eliminating the external heat source, realizing maximum utilization of thermal energy, saving the cooling power consumption of the air compressor, and reducing the high-temperature failure rate of the air compressor, significantly reducing power consumption, and reducing carbon emissions.

Description

Technical Field

[0001] The present invention relates to the technical field of adsorption dryers, in particular to a zero-gas-consumption screw compression heat regeneration adsorption air dryer. Background Art

[0002] Air compressors are major energy-consuming equipment in the industrial field and are widely used products. Air compressors are mechanical devices that compress air. They suck air from the atmosphere and compress it through mechanical motion to obtain gas at a certain pressure. This gas at a certain pressure is usually called compressed air, and the equipment usually used to generate compressed air is referred to as an air compressor. Compressed air contains moisture and oil mist. Direct use can lead to problems such as equipment corrosion and reduced process accuracy. Drying technology is required to control the dew point temperature. Traditional methods include freezing and adsorption drying. Among them, adsorption dryers are widely used in electronics, medicine, precision manufacturing and other fields because they can achieve deep drying (dew point as low as -40°C).

[0003] At present, the electric heaters commonly used in the micro-heat and blast heat dryers of compressed air post-processing equipment on the market result in high power loss. The temperature of the molecular sieve alumina is high after heating and regeneration in the adsorption dryer, but the characteristics of the adsorbent molecular sieve alumina are strong water adsorption capacity at low temperature and high pressure, and good dehydration effect at low pressure and high temperature. Therefore, the adsorbent temperature must be lowered after high-temperature dehydration and regeneration. However, the existing adsorption dryers generally use the dried compressed air for direct cold blowing, resulting in the consumption of a large amount of compressed air. The use of blower air cooling or cooler water cooling to lower the temperature inside the adsorbent for cold blowing will greatly increase energy consumption, resulting in high cost of use. For this reason, we propose a zero-gas-consumption screw compression heat regeneration adsorption air dryer. Summary of the Invention

[0004] The object of the present invention is to provide a zero-gas-consumption screw compression heat regeneration adsorption air dryer to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a zero-gas-consumption screw compression heat regeneration adsorption air dryer, comprising an adsorption tank 1, an adsorption tank 2, a control box and a waste heat recovery and heating device, wherein a bottom plate is provided under the adsorption tank 1 and the adsorption tank 2, and support plates are fixedly installed on the top of the bottom plate near both sides, the control box is fixedly installed between the outer walls of the adsorption tank 1 and the adsorption tank 2, and a supporting rotation mechanism is respectively provided between the two support plates and the adsorption tank 1 and the adsorption tank 2, and an adsorption pipe system is provided between the adsorption tank 1 and the adsorption tank 2.

[0006] Preferably, the adsorption pipeline system includes an air inlet tee pipe 1, an air inlet tee pipe 2, a connecting tee pipe 1 and an air outlet tee pipe 2, the top and bottom ends of the adsorption tank 1 are respectively connected to an air guide tee pipe 1 and an air guide tee pipe 3, the top and bottom ends of the adsorption tank 2 are respectively connected to an air guide tee pipe 2 and an air guide tee pipe 4, the two ends of the air outlet of the air inlet tee pipe 1 are respectively connected to one end of the air guide tee pipe 1 and the air guide tee pipe 2, and the air inlet tee pipe The two ends of the air outlet of gas guide tee two are respectively connected with one end of gas guide tee three and gas guide tee four, the two ends of connecting tee one are respectively connected with the other end of gas guide tee three and gas guide tee four, the two ends of gas outlet tee two are respectively connected with the other end of gas guide tee one and gas guide tee two, the other end of connecting tee one is connected with the other end of gas outlet tee two, and the gas outlet tee two is connected with a vent pipe.

[0007] Preferably, pneumatic valve 1 and pneumatic valve 2 are respectively provided between the two ends of the air inlet tee one and the air guide tee one and the air guide tee two, and one-way valves are respectively provided between the two ends of the air inlet tee two and the air guide tee three and the air guide tee four, pneumatic valve 3 and pneumatic valve 4 are respectively provided between the connecting tee and the air guide tee three and the air guide tee four, pneumatic valve 8 and pneumatic valve 9 are respectively provided between the air outlet tee two and the air guide tee one and the air guide tee two, and pneumatic valve 5 and pneumatic valve 6 are respectively provided between the air outlet tee one and the connecting tee one and the air outlet tee two, and pressure gauges are installed on both the air guide tee one and the air guide tee two. By providing the pressure gauges, personnel can observe the gas pressure in the adsorption tank one and the adsorption tank two through the pressure gauges.

[0008] The exhaust gas fan of the air vent of the gas heating unit is connected with the exhaust gas fan of the gas heating unit, and the exhaust gas fan of the gas heating unit is connected with the exhaust gas fan of the gas heating unit.

[0009] Preferably, a dustproof screen is fixedly embedded in the air inlet opened on the other side of the box body. By setting the dustproof screen, the dustproof screen can play a certain filtering role on the gas entering the inside of the box body.

[0010] Preferably, the supporting rotation mechanism includes a hydraulic cylinder, a fixed plate and a connecting plate, the outer walls of the adsorption tank 1 and the adsorption tank 2 are fixedly installed with a connecting shaft, the support plate is provided with a shaft groove, the connecting shaft movably passes through the shaft groove, the hydraulic cylinder is fixedly installed on the top of the bottom plate, the output end of the hydraulic cylinder is fixedly installed on the top plate, the fixed plate is movably sleeved on the outer wall of the connecting shaft, the bottom end of the fixed plate is fixedly installed with two limit columns, the two limit column movable rods pass through the top plate, the outer walls of the two limit columns are surrounded by a spring 1, the spring 1 is fixedly installed between the bottom end of the fixed plate and the top end of the top plate, the bottom end of the fixed plate is fixedly installed with two limit bars, The connecting plate is slidably connected to the inner sides of the two limit bars, and a pin is fixedly installed on the top of the connecting plate, and a pin groove is provided on the outer wall of the connecting shaft. The pin movably passes through the bottom end of the fixed plate and is inserted into the pin groove. A baffle is fixedly installed on one side of the connecting plate, and a baffle is provided on the outer side of the support plate. The baffle is slidably connected to the baffle groove, and a fixing assembly is provided on the support plate. A gear is fixedly installed on one end of the connecting shaft, and a rack plate is installed on the top of the top plate. The gear is meshed with the rack plate. By setting a pin, the pin can be inserted into the pin groove, thereby playing a role of limiting and fixing the connecting shaft, thereby ensuring the stability of adsorption tank one and adsorption tank two.

[0011] Preferably, limit sliders are fixedly installed at both ends of the connecting plate, and limit slots are provided on the inner sides of the two limit bars. The limit slider is slidably connected to the limit slot, and a limit rod is fixedly installed on the inner wall of the limit slot. The limit rod movably passes through the limit slider, and a spring 2 is surrounded by the outer wall of the limit rod. The spring 2 is fixedly installed between the bottom end of the limit slider and the top end of the inner wall of the limit slot. By setting the limit rod, the limit rod can play a limiting role on the limit slider and the spring 2, thereby ensuring the stability of the limit slider when sliding and the spring 2 when compressed.

[0012] Preferably, the fixing assembly includes a convex block, a pressure block and a pin, a contraction groove 1 and a contraction groove 2 are provided on the outer side of the support plate, the contraction groove 2 is provided above the contraction groove 1, the pressure block and the pin are respectively inserted into the contraction groove 1 and the contraction groove 2, a piston cavity is provided inside the support plate, a push rod 1 is installed on one side of the pressure block, the push rod 1 movably penetrates the contraction groove 1 and extends into the piston cavity, a piston pad 1 is fixedly installed on one end of the push rod 1, the piston pad 1 is slidably connected to the inner wall of the piston cavity, a push rod 2 is installed on one end of the pin, the push rod 2 movably penetrates the contraction groove Groove 2 extends into the piston cavity, and one end of the push rod 2 is fixedly installed with a piston pad 2, and the piston pad 2 is slidably connected to the inner wall of the piston cavity. The protrusion is installed on the opposite side of the top plate and the support plate, and the limit bar and the support plate are provided with a column groove on the opposite side. The outer wall of the push rod 1 is surrounded by a spring 3, and the spring 3 is fixedly installed between one side of the pressure block and the inner wall of the shrinkage groove 1. By setting a pin, the pin can be inserted into the column groove, so that the limit bar can be limited and fixed, and then the connecting shaft can be limited and fixed on the vertical axis, thereby ensuring the stability of the adsorption tank 1 and the adsorption tank 2.

[0013] Preferably, the protrusion, column groove, pressure block and pin are all on the same vertical axis, and a slope is provided at the bottom end of the other side of the pressure block. By providing a slope at the bottom end of the other side of the pressure block, the protrusion can be easily squeezed against the pressure block through the slope.

[0014] Compared with the prior art, the present invention has the following advantages: 1. By providing a waste heat recovery heating device, the hot oil generated by the air compressor screw can be used to heat an external air source to achieve heating, dehydration and regeneration of the adsorbent in adsorption tank one or adsorption tank two, eliminating the need for an external heat source, maximizing the utilization of thermal energy, saving air compressor cooling power consumption, and reducing the high-temperature failure rate of the air compressor, significantly reducing power consumption, and reducing carbon emissions. 2. By providing an internal cold blowing mode, the compressed air dried from one adsorption tank is used to enter the other adsorption tank that needs cold blowing, thereby removing the heat from the adsorbent in the other adsorption tank to achieve the purpose of cold blowing. The entire cold blowing process does not consume any energy, greatly reducing energy consumption, and increasing the temperature of the dried compressed air, further reducing the dew point temperature of the compressed air. 3. By providing a support rotation mechanism, when personnel need to disassemble and maintain the dryer, adsorption tank one and adsorption tank two can be automatically rotated to a horizontal state, thereby reducing the overall height of the dryer, greatly reducing the difficulty of personnel disassembly and maintenance, and thereby improving personnel maintenance efficiency and safety during maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the back structure of the adsorption tank 1 and the adsorption tank 2 of the present invention;

[0017] Figure 3 This is a partial cross-sectional structural diagram of the front side of the box body of the present invention;

[0018] Figure 4 It is a schematic diagram of the structure of the supporting rotation mechanism of the present invention;

[0019] Figure 5 This is a schematic diagram of the partial structure of the connecting shaft according to the present invention in a front cross-sectional view;

[0020] Figure 6 For the present invention Figure 5 A schematic diagram of the enlarged structure of the middle part A;

[0021] Figure 7 This is a schematic diagram of a partial structure of a front cross-sectional view of a support plate of the present invention;

[0022] Figure 8 For the present invention Figure 7 A schematic diagram of the enlarged structure of the middle B part;

[0023] Figure 9 For the present invention Figure 7 Schematic diagram of the enlarged structure of part C in the middle.

[0024] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0025] 1. Adsorption tank 1; 2. Adsorption tank 2; 3. Bottom plate; 4. Support plate; 5. Inlet tee 1; 6. Air guide tee 1; 7. Air guide tee 2; 8. Air guide tee 3; 9. Air guide tee 4; 10. Connecting tee 1; 11. Outlet tee 1; 12. Inlet tee 2; 13. Outlet tee 2; 14. Vent pipe; 15. Pneumatic valve 1; 16. Pneumatic valve 2 17. Pressure gauge; 18. Check valve; 19. Pneumatic valve three; 20. Pneumatic valve four; 21. Pneumatic valve five; 22. Pneumatic valve six; 23. Pneumatic valve seven; 24. Pneumatic valve eight; 25. Pneumatic valve nine; 26. Control box; 27. Box; 28. Fan; 29. ​​Air duct; 30. Three-way valve; 31. Plate heat exchanger; 32. Heat exchange inlet pipe; 33. Heat exchange outlet pipe; 3 4. Oil inlet pipe; 35. Oil outlet pipe; 36. Heater; 37. Heating outlet pipe; 38. Connecting pipe; 39. Connecting tee pipe (2); 40. Dust screen; 41. Hydraulic cylinder; 42. Top plate; 43. Connecting shaft; 44. Shaft groove; 45. Fixed plate; 46. Gear; 47. Rack plate; 48. Limiting column; 49. Spring (1); 50. Limiting bar; 51. Connecting plate; 52. Pin shaft; 53. Pin groove; 54. Limiting slider; 55. Limiting slide groove; 56. Limiting rod; 57. Spring 2; 58. Baffle; 59. Baffle groove; 60. Bump; 61. Pressure block; 62. Contraction groove 1; 63. Push rod 1; 64. Spring 3; 65. Piston pad 1; 66. Piston chamber; 67. Piston pad 2; 68. Push rod 2; 69. Pin column; 70. Contraction groove 2; 71. Column groove. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only 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 making creative efforts are within the scope of protection of the present invention.

[0027] The present invention provides a technical solution: Figures 1-9 The zero-gas-consumption screw compression heat regeneration adsorption air dryer shown in the figure includes an adsorption tank 1, an adsorption tank 2, a control box 26 and a waste heat recovery and heating device. A bottom plate 3 is provided below the adsorption tank 1 and the adsorption tank 2, and support plates 4 are fixedly installed on the top of the bottom plate 3 near both sides. The control box 26 is fixedly installed between the outer walls of the adsorption tank 1 and the adsorption tank 2. Support and rotation mechanisms are respectively provided between the two support plates 4 and the adsorption tank 1 and the adsorption tank 2. An adsorption pipeline system is provided between the adsorption tank 1 and the adsorption tank 2.

[0028] Among them, the adsorbents used in adsorption tank 1 and adsorption tank 2 are activated alumina and molecular sieve.

[0029] Furthermore, the adsorption pipeline system includes an air inlet tee 15, an air inlet tee 2 12, a connecting tee 10 and an air outlet tee 2 13. The top and bottom ends of the adsorption tank 1 are respectively connected to a gas guide tee 16 and a gas guide tee 3 8. The top and bottom ends of the adsorption tank 22 are respectively connected to a gas guide tee 27 and a gas guide tee 4 9. The two ends of the air outlet of the air inlet tee 15 are respectively connected to one end of the gas guide tee 16 and the gas guide tee 27. The air inlet tee 2 12 is connected to the air outlet of the air inlet tee 12. The two ends of the air outlet are respectively connected to one end of the air guiding tee three 8 and the air guiding tee four 9, the two ends of the connecting tee one 10 are respectively connected to the other ends of the air guiding tee three 8 and the air guiding tee four 9, the two ends of the air outlet tee two 13 are respectively connected to the other ends of the air guiding tee one 6 and the air guiding tee two 7, the other end of the connecting tee one 10 and the other end of the air outlet tee two 13 is connected with the air outlet tee one 11, and the air outlet tee two 13 is connected with the air vent pipe 14.

[0030] Furthermore, pneumatic valve 15 and pneumatic valve 2 16 are respectively provided between the two ends of the air inlet tee 1 5 and the air guide tee 1 6 and the air guide tee 2 7, and a one-way valve 18 is provided between the two ends of the air inlet tee 2 12 and the air guide tee 3 8 and the air guide tee 4 9. Pneumatic valve 3 19 and pneumatic valve 4 20 are respectively provided between the connecting tee and the air guide tee 3 8 and the air guide tee 4 9, and pneumatic valve 8 24 and pneumatic valve 9 25 are respectively provided between the air outlet tee 2 13 and the air guide tee 1 6 and the air guide tee 2 7, and pneumatic valve 5 21 and pneumatic valve 6 22 are respectively provided between the air outlet tee 1 11 and the connecting tee 10 and the air outlet tee 2 13, and pressure gauges 17 are installed on both the air guide tee 1 6 and the air guide tee 2 7 pipelines.

[0031] By providing the pressure gauge 17 , personnel can observe the gas pressure in the adsorption tank 1 and the adsorption tank 2 2 through the pressure gauge.

[0032] Furthermore, the waste heat recovery heating device includes a box body 27, a fan 28, a plate heat exchanger 31 and a heater 36. The fan 28 is installed near the bottom end of the inner wall of the box body 27 on one side, and the plate heat exchanger 31 is installed near the bottom end of the inner wall of the box body 27 on the other side. A heat exchange inlet pipe 32 and a heat exchange outlet pipe 33 are respectively connected near the bottom end and the top end of one side of the plate heat exchanger 31. The input end of the plate heat exchange oil pipe arranged inside the plate heat exchanger 31 is connected to an oil inlet pipe 34, and the input end of the plate heat exchange oil pipe arranged inside the plate heat exchanger 31 is connected to an oil outlet pipe 35. 5. The output end of the fan 28 is connected to an air duct 29, and the input end of the heater 36 is connected to a second connecting tee 39. A three-way valve 30 is provided between the air duct 29, the heat exchange air inlet pipe 32 and the second connecting tee 39. The heat exchange air outlet pipe 33 is connected to the second connecting tee 39. The oil inlet pipe 34 and the oil outlet pipe 35 both pass through one side of the box body 27. The output end of the heater 36 is connected to a heating air outlet pipe 37, which passes through the top of the box body 27. A connecting pipe 38 is provided between the heating air outlet pipe 37 and the air outlet tee 11.

[0033] Furthermore, a dustproof screen 40 is fixedly embedded in the air inlet opened on the other side of the box body 27;

[0034] By providing the dustproof screen 40 , the dustproof screen 40 can filter the gas entering the interior of the box body 27 to a certain extent.

[0035] Furthermore, the supporting rotation mechanism includes a hydraulic cylinder 41, a fixed plate 45 and a connecting plate 51. The outer walls of the adsorption tank 1 and the adsorption tank 2 are fixedly installed with a connecting shaft 43. The support plate 4 is provided with a shaft groove 44. The connecting shaft 43 moves through the shaft groove 44. The hydraulic cylinder 41 is fixedly installed on the top of the bottom plate 3. The output end of the hydraulic cylinder 41 is fixedly installed with a top plate 42. The fixed plate 45 is movably sleeved on the outer wall of the connecting shaft 43. Two limiting columns 48 are fixedly installed on the bottom end of the fixed plate 45. The movable rods of the two limiting columns 48 pass through the top plate 42. The outer walls of the two limiting columns 48 are surrounded by a spring 49. The spring 49 is fixedly installed on the bottom end of the fixed plate 45. Between the top of the top plate 42, two limit bars 50 are fixedly installed at the bottom of the fixed plate 45, and the connecting plate 51 is slidably connected to the inner sides of the two limit bars 50. A pin shaft 52 is fixedly installed on the top of the connecting plate 51, and a pin groove 53 is provided on the outer wall of the connecting shaft 43. The pin shaft 52 movably passes through the bottom end of the fixed plate 45 and is inserted into the pin groove 53. A baffle 58 is fixedly installed on one side of the connecting plate 51, and a baffle groove 59 is provided on the outer side of the support plate 4. The baffle 58 is slidably connected to the baffle groove 59. A fixing component is provided on the support plate 4, and a gear 46 is fixedly installed on one end of the connecting shaft 43. A rack plate 47 is installed on the top of the top plate 42, and the gear 46 is meshed with the rack plate 47;

[0036] By providing the pin shaft 52 so that the pin shaft 52 can be inserted into the pin groove 53, the connecting shaft 43 can be limited and fixed, thereby ensuring the stability of the adsorption tank 1 1 and the adsorption tank 2 2.

[0037] Furthermore, limit sliders 54 are fixedly installed at both ends of the connecting plate 51, and limit slots 55 are provided on the inner sides of the two limit bars 50. The limit sliders 54 are slidably connected to the limit slots 55. A limit rod 56 is fixedly installed on the inner wall of the limit slot 55. The limit rod 56 movably passes through the limit slider 54. A second spring 57 is surrounded by the outer wall of the limit rod 56. The second spring 57 is fixedly installed between the bottom end of the limit slider 54 and the top end of the inner wall of the limit slot 55.

[0038] By providing the limiting rod 56 , the limiting rod 56 can limit the limiting slider 54 and the second spring 57 , thereby ensuring the stability of the limiting slider 54 when sliding and the second spring 57 when compressed.

[0039] Furthermore, the fixing assembly includes a protrusion 60, a pressure block 61 and a pin 69. A contraction groove 62 and a contraction groove 2 70 are provided on the outside of the support plate 4. The contraction groove 2 70 is provided above the contraction groove 1 62. The pressure block 61 and the pin 69 are respectively inserted into the contraction groove 1 62 and the contraction groove 2 70. A piston cavity 66 is provided inside the support plate 4. A push rod 63 is installed on one side of the pressure block 61. The push rod 63 is movable through the contraction groove 1 62 and extends into the piston cavity 66. A piston pad 65 is fixedly installed at one end of the push rod 63. The piston pad 65 It is slidably connected to the inner wall of the piston cavity 66, and one end of the pin 69 is installed with a second push rod 68. The second push rod 68 movably passes through the second contraction groove 70 and extends into the piston cavity 66. One end of the second push rod 68 is fixedly installed with a second piston pad 67. The second piston pad 67 is slidably connected to the inner wall of the piston cavity 66. The protrusion 60 is installed on the opposite side of the top plate 42 and the support plate 4. The limit bar 50 is provided with a column groove 71 on the side opposite to the support plate 4. The outer wall of the push rod 1 63 is surrounded by a third spring 64. The third spring 64 is fixedly installed between one side of the pressure block 61 and the inner wall of the contraction groove 1 62;

[0040] By providing the pin 69 so that the pin 69 can be inserted into the column groove 71, the limit bar 50 can be limited and fixed, and the connecting shaft 43 can be limited and fixed on the vertical axis to ensure the stability of the adsorption tank 1 1 and the adsorption tank 2 2.

[0041] Furthermore, the protrusion 60, the column groove 71, the pressure block 61 and the pin 69 are all on the same vertical axis, and the bottom end of the other side of the pressure block 61 is provided with an inclined surface;

[0042] By providing an inclined surface at the bottom end of the other side of the pressing block 61, it is convenient for the protrusion 60 to squeeze the pressing block 61 through the inclined surface.

[0043] Working principle: When adsorption tank 1 and adsorption tank 2 are performing adsorption work at the same time, the control box controls pneumatic valves 1, 2, 3, 4 and 5 to open, and controls pneumatic valves 7, 8, 9 and 6 to close. Compressed air enters through the air inlet tee pipe 1, and then enters the adsorption tank 1 and adsorption tank 2 respectively through the air guide tee pipe 1 and the air guide tee pipe 2 to adsorb and dry the compressed air. The compressed air after adsorption and drying by the adsorption tank 1 and the adsorption tank 2 enters the connecting tee pipe 1 through the air guide tee pipe 3 and the air guide tee pipe 4 respectively, and finally flows out through the outlet end of the air outlet tee pipe 2, completing the drying of the compressed air.

[0044] When adsorption tank 1 and adsorption tank 2 are performing adsorption work simultaneously, control box 26 controls pneumatic valves 15, 2, 3, 4 and 5 to open, and controls pneumatic valves 7 23, 8, 9 and 6 to close. Compressed air enters through air inlet tee 1 5, and then enters adsorption tank 1 and adsorption tank 2 2 respectively through air guide tee 1 6 and air guide tee 2 7, and is adsorbed and dried. After adsorption and drying by adsorption tank 1 and adsorption tank 2 2, the compressed air enters connecting tee 1 through air guide tee 3 8 and air guide tee 4 9, and finally flows out through the outlet end of air outlet tee 2 13, completing the drying of the compressed air.

[0045] When adsorption tank 1 is performing adsorption work and the adsorbent in adsorption tank 2 is heated and regenerated, the control box 26 controls pneumatic valves 15, 3, 5, 7 and 8 to open, and controls pneumatic valves 2 16, 4, 6 and 9 to close, and compressed air enters through the air inlet tee 15. At this time, the compressed gas enters the air guide tee 16, and then enters the adsorption tank 1 through the air guide tee 6. After being adsorbed and dried by the adsorption tank 1, it passes through the air guide tee 3 8 and the connecting tee 10, and finally flows out through the air outlet tee 11. During this process, the waste heat recovery heating equipment is started, and the hot oil generated by the air compressor screw compression enters the plate heat exchange oil pipe in the plate heat exchanger 31 through the oil inlet pipe 34, and is then discharged through the oil outlet pipe 35. In the process of the hot oil entering the plate heat exchanger 31, the fan 28 is started, and the air flow generated by the fan 28 The air enters the plate heat exchanger 31 through the air guide pipe 29, the three-way valve 30 and the heat exchange inlet pipe 32. The hot oil passing through the plate heat exchange oil pipe heats the airflow entering the plate heat exchanger 31. The airflow heated by the hot oil enters the connecting three-way pipe 39 through the heat exchange outlet pipe 33. When a high-temperature airflow is required, the heater 36 can be started at the same time to heat the heated airflow again. When a high-temperature airflow is not required, the heater 36 is not started, and the heated airflow directly passes through the heater 36 and enters the heating outlet pipe 37. Then, it enters the air inlet three-way pipe 12 through the connecting pipe 38, and then enters the adsorption tank 2 through the air guide three-way pipe 9, so that the heated airflow heats and dehydrates the adsorbent. Then, the heated airflow enters the air outlet three-way pipe 13 through the air guide three-way pipe 7, and finally flows out through the vent pipe 14.

[0046] When the adsorbent is dehydrated and needs to be cooled, the control box 26 controls the pneumatic valves 15, 3, 4, 8 and 6 to open, and controls the pneumatic valves 2 16, 5, 7 and 9 to close. At this time, the compressed air enters through the air inlet tee 15, and then enters the adsorption tank 1 through the air guide tee 16, so that the adsorbent in the adsorption tank 1 absorbs and dries the compressed air. The compressed air that has completed adsorption and drying enters the adsorption tank 2 2 through the air guide tee 2 7, the connecting tee 10 and the air guide tee 4 9, so that the dried compressed gas takes away the heat in the adsorbent when passing through the adsorption tank 2 2, and realizes cold blowing on the adsorbent in the adsorption tank 2 2, thereby ensuring the normal adsorption effect of the adsorbent in the future, and can increase the temperature of the dried compressed air, further reducing the dew point temperature of the compressed air.

[0047] When the adsorption tank 2 is performing adsorption work and the adsorbent in the adsorption tank 1 is heated for regeneration and cooled by cold blowing, the steps are the same as above. Those skilled in the art can deduce this based on the above principles and will not be described in detail.

[0048] When personnel need to disassemble and maintain the dryer, they can first remove the wires connecting the dryer to the outside, and then remove the air release pipe 14. At this time, the hydraulic cylinder 41 can be directly started. The hydraulic cylinder 41 drives the top plate 42 to move upward. The top plate 42 drives the connecting shaft 43 to move upward through the rack plate 47 and the gear 46. The connecting shaft 43 drives the adsorption tank 1 and the adsorption tank 2 to move upward. The connecting shaft 43 drives the limit bar 50 to move upward. The limit bar 50 drives the connecting plate 51 to move upward through the spring 2 57. The plate 51 drives the baffle 58 to move upward, and the baffle 58 slides upward in the baffle groove 59. When the baffle 58 moves to a certain height, the baffle groove 59 blocks the baffle 58, and the connecting shaft 43 continues to move upward, which will cause the pin 52 to disengage from the pin groove 53, so that the pin 52 no longer limits the connecting shaft 43. When the connecting shaft 43 moves to the top of the shaft groove 44, the top plate 42 will continue to move upward. At this time, the top plate 42 drives the protrusion 60 to squeeze the pressure block 61, so that the pressure block 61 moves into the contraction groove 62. The pressure block 61 compresses the spring three 64, so that the pressure block 61 drives the piston pad one 65 through the push rod one 63 to compress the air in the piston chamber 66, so that the air in the piston chamber 66 squeezes the piston pad two 67, so that the piston pad two 67 drives the pin 69 to extend out of the contraction groove through the push rod two 68, and finally the pin 69 is inserted into the column groove 71, thereby limiting and fixing the limit bar 50, and then limiting and fixing the connecting shaft 43 in the vertical direction. At this time, the top plate 42 will drive the rack plate 47 to move upward, the rack plate 47 will drive the gear 46 to rotate, the gear 46 drives the connecting shaft 43 to rotate, and the connecting shaft 43 will drive the adsorption tank one 1 and the adsorption tank two 2 to rotate, so that the adsorption tank one 1 and the adsorption tank two 2 rotate to a horizontal state. Through the above structure, when personnel need to disassemble and maintain the dryer, the adsorption tank one 1 and the adsorption tank two 2 can automatically rotate to a horizontal state, thereby reducing the overall height of the dryer, greatly reducing the difficulty of personnel disassembly and maintenance, and thus improving personnel maintenance efficiency and safety during maintenance.

[0049] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0050] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A zero-gas-consumption screw compression heat regeneration adsorption air dryer, comprising an adsorption tank (1), an adsorption tank (2), a control box (26) and a waste heat recovery heating device, wherein a bottom plate (3) is provided below the adsorption tank (1) and the adsorption tank (2), and support plates (4) are fixedly installed on the top of the bottom plate (3) near both sides, and the control box (26) is fixedly installed between the outer walls of the adsorption tank (1) and the adsorption tank (2), and is characterized in that: A supporting rotation mechanism is provided between the two support plates (4) and the adsorption tank 1 (1) and the adsorption tank 2 (2), respectively; an adsorption pipe system is provided between the adsorption tank 1 (1) and the adsorption tank 2 (2); The adsorption pipe system includes an air inlet tee pipe 1 (5), an air inlet tee pipe 2 (12), a connecting tee pipe 1 (10) and an air outlet tee pipe 2 (13). The top and bottom ends of the adsorption tank 1 (1) are connected to an air guide tee pipe 1 (6) and an air guide tee pipe 3 (8), respectively. The top and bottom ends of the adsorption tank 2 (2) are connected to an air guide tee pipe 2 (7) and an air guide tee pipe 4 (9), respectively. The two ends of the air outlet of the air inlet tee pipe 1 (5) are connected to one end of the air guide tee pipe 1 (6) and one end of the air guide tee pipe 2 (7), respectively. The air inlet tee pipe 2 (12) is connected to one end of the air guide tee pipe 1 (6) and one end of the air guide tee pipe 2 (7). The two ends of the air outlet are respectively connected to one end of the air guide tee pipe 3 (8) and the air guide tee pipe 4 (9), the two ends of the connecting tee pipe 1 (10) are respectively connected to the other ends of the air guide tee pipe 3 (8) and the air guide tee pipe 4 (9), the two ends of the air outlet tee pipe 2 (13) are respectively connected to the other ends of the air guide tee pipe 1 (6) and the air guide tee pipe 2 (7), the other end of the connecting tee pipe 1 (10) and the other end of the air outlet tee pipe 2 (13) are connected to the air outlet tee pipe 1 (11), and the air outlet tee pipe 2 (13) is connected to the air release pipe (14); The waste heat recovery and heating equipment comprises a box (27), a fan (28), a plate heat exchanger (31) and a heater (36), wherein the fan (28) is installed near one side of the bottom end of the inner wall of the box (27), and the plate heat exchanger (31) is installed near the other side of the bottom end of the inner wall of the box (27). A heat exchange air inlet pipe (32) and a heat exchange air outlet pipe (33) are respectively connected near the bottom end and the top end of one side of the plate heat exchanger (31), and the input end of the plate heat exchange oil pipe provided inside the plate heat exchanger (31) is connected to the oil inlet pipe (34), and the input end of the plate heat exchange oil pipe provided inside the plate heat exchanger (31) is connected to the oil outlet pipe (35). The fan (28) The output end is connected to an air guide pipe (29), the input end of the heater (36) is connected to a connecting three-way pipe (2) (39), a three-way valve (30) is connected between the air guide pipe (29), the heat exchange air inlet pipe (32) and the connecting three-way pipe (2) (39), the heat exchange air outlet pipe (33) is connected to the connecting three-way pipe (2) (39), the oil inlet pipe (34) and the oil outlet pipe (35) both pass through one side of the box (27), the output end of the heater (36) is connected to a heating air outlet pipe (37), the heating air outlet pipe (37) passes through the top of the box (27), and a connecting pipe (38) is connected between the heating air outlet pipe (37) and the air outlet three-way pipe (11); The supporting rotation mechanism includes a hydraulic cylinder (41), a fixed plate (45) and a connecting plate (51), the outer walls of the adsorption tank 1 (1) and the adsorption tank 2 (2) are fixedly installed with a connecting shaft (43), the support plate (4) is provided with an axis groove (44), the connecting shaft (43) movably passes through the axis groove (44), the hydraulic cylinder (41) is fixedly installed on the top of the bottom plate (3), the output end of the hydraulic cylinder (41) is fixedly installed with a top plate (42), the fixed plate (45) is movably sleeved on the outer wall of the connecting shaft (43), the bottom end of the fixed plate (45) is fixedly installed with two limiting columns (48), the movable rods of the two limiting columns (48) pass through the top plate (42), the outer walls of the two limiting columns (48) are surrounded by a spring 1 (49), and the spring 1 (49) is fixedly installed between the bottom end of the fixed plate (45) and the top plate (42). Between the top and bottom, two limit bars (50) are fixedly installed at the bottom end of the fixed plate (45), the connecting plate (51) is slidably connected to the inner sides of the two limit bars (50), the top of the connecting plate (51) is fixedly installed with a pin shaft (52), the outer wall of the connecting shaft (43) is provided with a pin groove (53), the pin shaft (52) movably passes through the bottom end of the fixed plate (45) and is inserted into the pin groove (53), a baffle (58) is fixedly installed on one side of the connecting plate (51), a baffle groove (59) is provided on the outer side of the support plate (4), the baffle (58) is slidably connected to the baffle groove (59), a fixing assembly is provided on the support plate (4), a gear (46) is fixedly installed at one end of the connecting shaft (43), a rack plate (47) is installed at the top end of the top plate (42), and the gear (46) is meshed with the rack plate (47).

2. The zero-gas-consumption screw compression heat regeneration adsorption air dryer according to claim 1, characterized in that: A pneumatic valve 1 (15) and a pneumatic valve 2 (16) are provided between the two ends of the air intake tee 1 (5) and the air guide tee 1 (6) and the air guide tee 2 (7), respectively. A one-way valve (18) is provided between the two ends of the air intake tee 2 (12) and the air guide tee 3 (8) and the air guide tee 4 (9), respectively. A pneumatic valve 3 (19) and a pneumatic valve 4 (2 0), a pneumatic valve eight (24) and a pneumatic valve nine (25) are respectively provided between the gas outlet three-way pipe two (13) and the gas guide three-way pipe one (6) and the gas guide three-way pipe two (7), a pneumatic valve five (21) and a pneumatic valve six (22) are respectively provided between the gas outlet three-way pipe one (11) and the connecting three-way pipe one (10) and the gas outlet three-way pipe two (13), and a pressure gauge (17) is installed on both the gas guide three-way pipe one (6) and the gas guide three-way pipe two (7).

3. The zero-gas-consumption screw compression heat regeneration adsorption air dryer according to claim 1, characterized in that: A dustproof screen plate (40) is fixedly embedded in the air inlet opened on the other side of the box body (27).

4. The zero-gas-consumption screw compression heat regeneration adsorption air dryer according to claim 1, characterized in that: The two ends of the connecting plate (51) are fixedly installed with limit sliders (54), and the inner sides of the two limit bars (50) are provided with limit slots (55). The limit slider (54) is slidably connected with the limit slots (55). The inner wall of the limit slot (55) is fixedly installed with a limit rod (56). The limit rod (56) movably passes through the limit slider (54). The outer wall of the limit rod (56) is surrounded by a second spring (57). The second spring (57) is fixedly installed between the bottom end of the limit slider (54) and the top end of the inner wall of the limit slot (55).

5. The zero-gas-consumption screw compression heat regeneration adsorption air dryer according to claim 1, characterized in that: The fixing assembly includes a protrusion (60), a pressure block (61) and a pin (69), the outer side of the support plate (4) is provided with a contraction groove 1 (62) and a contraction groove 2 (70), the contraction groove 2 (70) is arranged above the contraction groove 1 (62), the pressure block (61) and the pin (69) are respectively inserted into the contraction groove 1 (62) and the contraction groove 2 (70), the support plate (4) is provided with a piston cavity (66), one side of the pressure block (61) is provided with a push rod 1 (63), the push rod 1 (63) is movable through the contraction groove 1 (62) and extends into the piston cavity (66), one end of the push rod 1 (63) is fixedly provided with a piston pad 1 (65), the piston pad 1 (65) and the piston pad 1 (65) are fixedly provided with the piston pad 1 (65). The inner wall of the piston chamber (66) is slidably connected, and one end of the pin (69) is equipped with a second push rod (68), and the second push rod (68) is movable through the second contraction groove (70) and extends into the piston chamber (66). One end of the second push rod (68) is fixedly equipped with a second piston pad (67), and the second piston pad (67) is slidably connected to the inner wall of the piston chamber (66). The protrusion (60) is installed on the opposite side of the top plate (42) and the support plate (4), and the side opposite to the support plate (4) is provided with a column groove (71). The outer wall of the first push rod (63) is surrounded by a third spring (64), and the third spring (64) is fixedly installed between one side of the pressure block (61) and the inner wall of the first contraction groove (62).

6. The zero-gas-consumption screw compression heat regeneration adsorption air dryer according to claim 5, characterized in that: The protrusion (60), the column groove (71), the pressing block (61) and the pin (69) are all located on the same vertical axis, and a slope is provided on the bottom end of the other side of the pressing block (61).

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