Nitrogen cooling protection device of centrifugal machine

Abstract

The utility model discloses a nitrogen protection device of a centrifugal machine. The nitrogen protection device comprises a machine base. A machine shell is arranged at the top of the machine base, an air port is fixedly connected to the top of the machine shell, and vortex tubes are symmetrically and fixedly connected to the two sides of the inner wall of the machine shell. The outer side of the vortex tube is sleeved with an outer sleeve, one end of the vortex tube is a cold air outlet tube, and the other end of the vortex tube is a hot air outlet tube. The vortex tube produces cold air, the centrifugal machine is cooled through the cold air, compressed air is introduced into the vortex tube through the connecting tube, the cold air can be discharged from one end, located in the machine shell, of the vortex tube after energy conversion in the vortex tube, the temperature of the surface of the centrifugal machine can be slowly reduced after the cold air makes contact with the centrifugal machine working for a long time, and the cooling effect is achieved.

Description

Technical Field

[0001] The utility model relates to a centrifuge protection technology, in particular to a centrifuge nitrogen cooling protection device. Background Art

[0002] A centrifuge is a machine that uses centrifugal force to separate liquids from solid particles or components in a mixture of liquids and liquids. Centrifuges are mainly used to separate solid particles from liquids in suspensions, or to separate two immiscible liquids of different densities in emulsions. They can also be used to remove liquids from wet solids. Special ultra-speed tubular separators can also separate gas mixtures of different densities. Some sedimentation centrifuges can also classify solid particles by density or particle size, taking advantage of the fact that solid particles of different densities or particle sizes have different sedimentation speeds in liquids. Nitrogen is a colorless and odorless gas under normal conditions, and its chemical properties are very inactive. Nitrogen is soluble in water and alcohol, but basically insoluble in most other liquids.

[0003] In the prior art, the centrifuge is in a sealed state when working. At the same time, the oxygen in the centrifuge may cause oxidation reaction or fire, so nitrogen is used for protection. After working for a long time, the mechanical parts will generate a lot of heat due to continuous rotation. The current protection device cannot reduce the temperature and there are still certain safety hazards. Utility Model Content

[0004] In order to solve the defects of the above-mentioned prior art, the utility model proposes a centrifuge nitrogen cooling protection device to improve the problem that a large amount of heat is generated when the centrifuge works for a long time.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A centrifuge nitrogen protection device comprises a base, a casing is provided on the top of the base, an air port is fixedly connected to the top of the casing, vortex tubes are symmetrically fixedly connected to the inner walls of the casing on both sides, an outer sleeve is provided on the outer side of the vortex tube, one end of the vortex tube is a cold outlet pipe, the other end of the vortex tube is a hot outlet pipe, a connecting port is fixedly connected to the top of the vortex tube, a connecting pipe is provided in the connecting port, and an adjustable valve is provided on the hot outlet pipe.

[0007] Preferably, a spring shock absorber is symmetrically fixedly connected to the bottom of the base.

[0008] Preferably, a collection box is fixedly connected to the outer side of the casing, and a drainage pipe is fixedly connected to the bottom of the collection box.

[0009] Preferably, one end of the base is fixedly connected to a first cushion block, the top of the first cushion block is fixedly connected to an auxiliary motor, and the output end of the auxiliary motor is fixedly connected to a differential.

[0010] Preferably, a drum is rotatably connected inside the casing, a rotating body is rotatably connected inside the drum, spiral blades are provided on the outer side of the rotating body, and one end of the rotating body is fixedly connected to the differential.

[0011] Preferably, the other end of the rotating body is fixedly connected to one side of the bearing, and a driving assembly is provided on the other side of the bearing.

[0012] Preferably, the driving assembly includes a first pulley fixedly connected to the bearing, a belt is provided on the outer surface of the first pulley, a second pulley is rotatably connected inside the belt, the second pulley is fixedly connected to the output end of the main motor, and the main motor is fixedly connected to the top of the second pad.

[0013] Preferably, the second cushion block is fixedly connected to the top of the support plate, one end of a fixing rod is fixedly connected to both sides of the top of the support plate, and the other end of the fixing rod is fixedly connected to the side of the base.

[0014] The nitrogen cooling protection device for centrifuges of the utility model has the following beneficial effects:

[0015] In the utility model, under the premise of traditional nitrogen pressurization isolation protection, cold air is produced by setting a vortex tube, and the centrifuge is cooled by the cold air. The compressed gas is passed into the vortex tube through the connecting pipe, and after the energy conversion inside the vortex tube, the cold air is released from one end located in the casing. After the cold air contacts the centrifuge that has been working for a long time, the surface temperature thereof is slowly reduced, achieving the cooling effect. Thereby, the operating life of the mechanical parts is increased, the stability of the process flow is improved, and the parking and safety accidents caused by equipment failure are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of the nitrogen protection device for centrifuge of the utility model;

[0017] Figure 2 This is a schematic structural diagram of the nitrogen protection device for centrifuge of the utility model from another angle;

[0018] Figure 3 for Figure 2 Sectional view of AA in the middle;

[0019] Figure 4 It is a partial structural schematic diagram of the nitrogen protection device for centrifuge of the utility model;

[0020] Figure 5 It is a partial structural schematic diagram of the nitrogen protection device for centrifuge of the utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the vortex tube of the utility model;

[0022] Figure 7 The figure is a schematic diagram of the internal structure of the vortex tube of the utility model.

[0023] The accompanying drawings are denoted by the following numerals: 1. base; 2. spring shock absorber; 3. first pad; 4. auxiliary motor; 5. casing; 6. air port; 7. bearing; 8. collection box; 9. drain pipe; 10. first pulley; 11. belt; 12. second pulley; 13. main motor; 14. second pad; 15. support plate; 16. fixing rod; 17. differential; 18. drum; 19. rotating body; 20. spiral fan blade; 21. hot air outlet pipe; 22. outer jacket; 23. cold air outlet pipe; 24. connecting port; 25. vortex tube; 26. connecting pipe; 27. adjustable valve. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0025] Reference Figures 1 to 7 The centrifuge nitrogen protection device of the utility model comprises a base 1, a casing 5 is provided on the top of the base 1, an air port 6 is fixedly connected to the top of the casing 5, vortex tubes 25 are symmetrically fixedly connected to the inner walls of the casing 5 on both sides, a jacket 22 is provided on the outer side of the vortex tube 25, one end of the vortex tube 25 is a cold air outlet pipe 23, the other end of the vortex tube 25 is a hot air outlet pipe 21, a connecting port 24 is fixedly connected to the top of the vortex tube 25, a connecting pipe 26 is provided in the connecting port 24, and an adjustable valve 27 is provided on the hot air outlet pipe 21.

[0026] The control air port 6 can adjust the nitrogen concentration in the casing 5. The connecting port 24 at the top of the vortex tube 25 is connected to a connecting pipe 26. The compressed air enters the vortex tube 25 from the connecting pipe 26. After energy conversion inside the vortex tube 25, cold air will be ejected from the cold outlet pipe 23, and hot air will be ejected from the hot outlet pipe 21. The adjustable valve 27 on the hot outlet pipe 21 can adjust the gas temperature. This is the prior art and will not be described in detail. The temperature of the ejected cold air is controlled according to the heat of the centrifuge to cool it down.

[0027] Reference Figures 1 to 3 The bottom of the base 1 is symmetrically fixedly connected with a spring shock absorber 2.

[0028] The spring shock absorber 2 can effectively reduce vibration, making the machine more stable when in use, thereby reducing wear between parts.

[0029] Reference Figure 1 to Figure 2 A collecting box 8 is fixedly connected to the outer side of the casing 5 , and a drain pipe 9 is fixedly connected to the bottom of the collecting box 8 .

[0030] The collecting box 8 is used to block the hot air discharged from the hot air outlet pipe 21 of the vortex tube 25 to prevent the hot air from scalding nearby workers. The metal collecting box 8 will condense the hot air into water droplets when it comes into contact with the hot air, and discharge it through the drain pipe 9 for collection and recycling.

[0031] Reference Figure 1 and Figure 3 One end of the base 1 is fixedly connected to a first cushion block 3 , the top of the first cushion block 3 is fixedly connected to an auxiliary motor 4 , and the output end of the auxiliary motor 4 is fixedly connected to a differential 17 .

[0032] The auxiliary motor 4 installed on the base 1 is used for energy recovery, which is a prior art and will not be described in detail. The recovered electric energy is fed back to the transmission line of the main motor 13 to improve the efficiency of power use. The differential 17 is used to distribute torque to ensure rotation at different speeds.

[0033] Reference Figure 3 and Figure 4 A drum 18 is rotatably connected inside the casing 5, a rotating body 19 is rotatably connected inside the drum 18, a spiral blade 20 is provided on the outside of the rotating body 19, one end of the rotating body 19 is fixedly connected to the differential 17, the other end of the rotating body 19 is fixedly connected to one side of the bearing 7, and a driving assembly is provided on the other side of the bearing 7.

[0034] The mixture to be separated is added into the drum 18, and the mixture is separated by centrifugal force generated by high-speed rotation. The rotor 19 also generates centrifugal force through rotation to achieve effective separation and concentration of different components in the mixture. The spiral blades 20 provide centrifugal force and improve separation efficiency, and promote the flow of objects to accelerate separation.

[0035] Reference Figure 1 and Figure 3 The driving assembly includes a first pulley 10 fixedly connected to the bearing 7, a belt 11 is provided on the outer surface of the first pulley 10, a second pulley 12 is connected inside the belt 11, the second pulley 12 is fixedly connected to the output end of the main motor 13, the main motor 13 is fixedly connected to the top of the second cushion block 14, the second cushion block 14 is fixedly connected to the top of the support plate 15, one end of a fixing rod 16 is fixedly connected to both sides of the top of the support plate 15, and the other end of the fixing rod 16 is fixedly connected to the side of the machine base 1.

[0036] The support plate 15 is fixed by a fixing rod 16. A main motor 13 is provided on the top of the support plate 15 to provide the main power required by the machine. A second pulley 12 fixed on the output end of the main motor 13 drives the first pulley 10 to rotate through a belt 11 for belt transmission, thereby driving the bearing 7 connected to the first pulley 10 to rotate.

[0037] The working principle of the utility model is as follows: the machine is started, the drum 7 starts to rotate, the machine starts to vibrate, the spring shock absorber 2 at the bottom of the machine base 1 reduces the shaking of the machine, making the machine more stable when working, nitrogen is injected through the air port 6 and its concentration is controlled, when the drum 7 starts to generate heat after working for a period of time, compressed air is added to the vortex tube 25 from the connecting pipe 26, after the energy conversion inside the vortex tube 25, cold air will be ejected from the cold air outlet pipe 23 and flow through the surface of the drum 7 to start cooling it, so that the drum 7 can work for a long time and reduce the occurrence of safety hazards.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A centrifuge nitrogen cooling protection device, comprising a base (1), characterized in that: A casing (5) is provided on the top of the machine base (1), an air port (6) is fixedly connected to the top of the casing (5), vortex tubes (25) are symmetrically fixedly connected to the inner walls of the casing (5) on both sides, an outer sleeve (22) is provided on the outer side of the vortex tube (25), one end of the vortex tube (25) is a cold air outlet pipe (23), the other end of the vortex tube (25) is a hot air outlet pipe (21), a connecting port (24) is fixedly connected to the top of the vortex tube (25), a connecting pipe (26) is provided in the connecting port (24), and an adjustable valve (27) is provided on the hot air outlet pipe (21).

2. A centrifuge nitrogen cooling protection device according to claim 1, characterized in that: A spring shock absorber (2) is symmetrically fixedly connected to the bottom of the machine base (1).

3. A centrifuge nitrogen cooling protection device according to claim 1, characterized in that: A collection box (8) is fixedly connected to the outside of the casing (5), and a drainage pipe (9) is fixedly connected to the bottom of the collection box (8).

4. A centrifuge nitrogen cooling protection device according to claim 1, characterized in that: One end of the machine base (1) is fixedly connected to a first cushion block (3), the top of the first cushion block (3) is fixedly connected to an auxiliary motor (4), and the output end of the auxiliary motor (4) is fixedly connected to a differential (17).

5. The centrifuge nitrogen cooling protection device according to claim 1, characterized in that: A rotating drum (18) is rotatably connected inside the housing (5), a rotating body (19) is rotatably connected inside the rotating drum (18), a spiral blade (20) is provided on the outside of the rotating body (19), and one end of the rotating body (19) is fixedly connected to the differential (17).

6. A centrifuge nitrogen cooling protection device according to claim 5, characterized in that: The other end of the rotating body (19) is fixedly connected to one side of the bearing (7), and a driving component is provided on the other side of the bearing (7).

7. A centrifuge nitrogen cooling protection device according to claim 6, characterized in that: The drive assembly comprises a first pulley (10) fixedly connected to a bearing (7), a belt (11) being provided on an outer surface of the first pulley (10), a second pulley (12) being rotatably connected inside the belt (11), the second pulley (12) being fixedly connected to an output end of a main motor (13), and the main motor (13) being fixedly connected to a top of a second cushion block (14).

8. A centrifuge nitrogen cooling protection device according to claim 7, characterized in that: The second cushion block (14) is fixedly connected to the top of the support plate (15), one end of a fixing rod (16) is fixedly connected to both sides of the top of the support plate (15), and the other end of the fixing rod (16) is fixedly connected to the side of the machine base (1).

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