Compressor for oxygen generator

Abstract

The utility model discloses a compressor for an oxygen generator. The compressor comprises a driving mechanism, and a first compression mechanism and a second compression mechanism which are arranged on the left side and the right side of the driving mechanism, a first positive pressure mechanism and a first negative pressure mechanism are arranged on the first compression mechanism, and a second positive pressure mechanism corresponding to the first positive pressure mechanism and a second negative pressure mechanism corresponding to the first negative pressure mechanism are arranged on the second compression mechanism. Positive pressure pistons are arranged in the first positive pressure mechanism and the second positive pressure mechanism, and negative pressure pistons are arranged in the first negative pressure mechanism and the second negative pressure mechanism. The manufacturing material density of the positive pressure piston is larger than that of the negative pressure piston, and the mass of the first positive pressure mechanism and the mass of the second positive pressure mechanism are equal to the mass of the first negative pressure mechanism and the mass of the second negative pressure mechanism, so that the mass of the left side, the right side, the front side and the rear side of the compressor for the oxygen generator is balanced. The design purposes of small vibration and low noise are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of oxygen generator, especially an oxygen generator compressor. BACKGROUND

[0002] The existing oxygen generator adopts the molecular sieve pressure swing adsorption principle, purifies the oxygen component in air to produce high-concentration oxygen. Usually, the positive pressure-normal pressure cycle switching (PSA route) is used to change the pressure of the molecular sieve tower to achieve the adsorption purpose. Some designs use the positive pressure-negative pressure cycle switching (VPSA route) method. This can greatly improve the adsorption efficiency of the molecular sieve, and can save more than 30% energy under the same oxygen production.

[0003] However, due to the use of a set of eccentric shafts by the positive pressure mechanism and the negative pressure mechanism, and the airflow load of the positive pressure mechanism and the negative pressure mechanism is inconsistent, the cylinder diameter of the positive pressure mechanism and the negative pressure mechanism is different, which leads to the inconsistency of the mass of the positive pressure mechanism and the negative pressure mechanism, and the dynamic balance of the overall mechanism cannot be offset, SUMMARY

[0004] The main purpose of the utility model is to provide an oxygen generator compressor which uses materials with different densities to manufacture positive pressure pistons and negative pressure pistons respectively, and balances the mass of the positive pressure mechanism and the negative pressure mechanism in this way, so that the overall operation of the machine is more stable and the vibration is less, thereby improving the user experience and the service life of the product.

[0005] The utility model provides an oxygen generator compressor, which comprises a driving mechanism and first and second compression mechanisms arranged on the left and right sides of the driving mechanism.

[0006] The first compression mechanism is provided with a first positive pressure mechanism and a first negative pressure mechanism, and the second compression mechanism is provided with a second positive pressure mechanism corresponding to the first positive pressure mechanism and a second negative pressure mechanism corresponding to the first negative pressure mechanism.

[0007] The first positive pressure mechanism and the second positive pressure mechanism are provided with positive pressure pistons, and the first negative pressure mechanism and the second negative pressure mechanism are provided with negative pressure pistons. The inner diameter of the first positive pressure mechanism and the second positive pressure mechanism is greater than that of the first negative pressure mechanism and the second negative pressure mechanism. The size of the positive pressure piston is consistent with that of the negative pressure piston. The density of the material used to manufacture the positive pressure piston is greater than that of the material used to manufacture the negative pressure piston, and the mass of the first positive pressure mechanism and the second positive pressure mechanism is equal to that of the first negative pressure mechanism and the second negative pressure mechanism.

[0008] Preferably, the positive pressure piston is made of zinc alloy, and the negative pressure piston is made of aluminum alloy.

[0009] Preferably, the driving mechanism is an electric motor, and output shafts at both ends of the electric motor are connected with the eccentric wheels respectively, and the positive pressure piston and the negative pressure piston are fixedly connected with the eccentric wheels respectively.

[0010] Preferably, the first positive pressure mechanism and the second positive pressure mechanism are provided with radiating fins on outer sides.

[0011] Preferably, the first positive pressure mechanism and the second positive pressure mechanism are provided with radiating fins on outer sides.

[0012] Preferably, the first positive pressure mechanism and the second positive pressure mechanism are provided with radiating fins on outer sides.

[0013] Preferably, the first positive pressure mechanism and the second positive pressure mechanism are provided with radiating fins on outer sides.

[0014] Preferably, the first positive pressure mechanism and the second positive pressure mechanism are provided with radiating fins on outer sides.

[0015] The oxygen generator compressor has the advantages that:

[0016] 1. The density of the material of the positive pressure piston is greater than that of the material of the negative pressure piston, and the mass of the first positive pressure mechanism and the second positive pressure mechanism is equal to that of the first negative pressure mechanism and the second negative pressure mechanism, so that the mass of the oxygen generator compressor on the left and right sides and on the front and back sides is balanced, and the design purpose of small vibration and low noise is achieved.

[0017] 2. The first positive pressure mechanism and the second positive pressure mechanism are provided with radiating fins on outer sides, and the first negative pressure mechanism and the second negative pressure mechanism are not provided with radiating fins on outer sides, so that the heat dissipation effect is ensured, and the cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of the oxygen generator compressor.

[0019] Figure 2 It is a structural schematic view of the positive pressure piston of the oxygen generator compressor.

[0020] Figure 3The eccentric wheel structure schematic view of the compressor for the oxygen generator of the utility model is shown in the figure.

[0021] The figure mark: 1, drive mechanism, 2, first compression mechanism, 3, second compression mechanism, 4, first air outlet pipeline, 5, second air outlet pipeline, 6, third air outlet pipeline, 7, positive pressure piston, 8, eccentric wheel, 21, first positive pressure mechanism, 22, first negative pressure mechanism, 23, connecting plate, 31, second positive pressure mechanism, 32, second negative pressure mechanism, 211, heat dissipation fin.

[0022] The realization, functional features and advantages of the utility model will be further explained by combining with embodiments and referring to the drawings. DETAILED DESCRIPTION

[0023] It should be understood that the specific embodiments described herein are only used to explain the utility model and not used to limit the utility model.

[0024] Reference Figure 1 An embodiment of the compressor for the oxygen generator of the utility model is proposed:

[0025] A compressor for an oxygen generator, comprising a drive mechanism 1, a first air outlet pipeline 4, a second air outlet pipeline 5, a third air outlet pipeline 6, an air inlet pipeline and a first compression mechanism 2 and a second compression mechanism 3 arranged on the left and right sides of the drive mechanism 1. The drive mechanism 1 comprises a motor.

[0026] The first compression mechanism 2 is provided with a first positive pressure mechanism 21 and a first negative pressure mechanism 22 in a screw connection mode, the first positive pressure mechanism 21 is provided with a positive pressure piston 7, the first negative pressure mechanism 22 is provided with a negative pressure piston, one end of the motor extends into the first compression mechanism 2 and is connected with an eccentric wheel 8, the positive pressure piston 7 and the negative pressure piston are fixedly connected on the eccentric wheel 8. The positive pressure piston 7 and the negative pressure piston are repeatedly driven by the motor.

[0027] The second compression mechanism 3 is provided with a second positive pressure mechanism 31 and a second negative pressure mechanism 32 in a screw connection mode, the second positive pressure mechanism 31 is provided with a positive pressure piston 7, the second negative pressure mechanism 32 is provided with a negative pressure piston, the other end of the motor extends into the second compression mechanism 3 and is connected with the eccentric wheel 8, the positive pressure piston 7 and the negative pressure piston are fixedly connected on the eccentric wheel 8. The positive pressure piston 7 and the negative pressure piston are repeatedly driven by the motor. The air inlets of the first air outlet pipeline 4 are connected with the first positive pressure mechanism 21 and the second positive pressure mechanism 31 respectively. The air inlets of the second air outlet pipeline 5 and the third air outlet pipeline 6 are connected with the first negative pressure mechanism 22 and the second negative pressure mechanism 32 respectively.

[0028] The first compression mechanism 2 and the second compression mechanism 3 are respectively provided with a connecting plate 23, the connecting plate 23 is provided with a connecting plate connecting hole, and the oxygen generator compressor is fixedly connected with the oxygen generator through the connecting plate connecting hole. The first positive pressure mechanism 21 and the second positive pressure mechanism 31 are provided with a heat dissipation fin 211 on the outer side, and the working state of the oxygen generator compressor can be better guaranteed through the heat dissipation fin 211.

[0029] The inner diameters of the first positive pressure mechanism 21 and the second positive pressure mechanism 31 are greater than the inner diameters of the first negative pressure mechanism 22 and the second negative pressure mechanism 32, the size of the positive pressure piston 7 is consistent with the size of the negative pressure piston, the positive pressure piston 7 is made of zinc alloy, and the negative pressure piston is made of aluminum alloy. The density of the material of the positive pressure piston 7 is greater than the density of the material of the negative pressure piston, and the mass of the first positive pressure mechanism 21 and the second positive pressure mechanism 31 is equal to the mass of the first negative pressure mechanism 22 and the second negative pressure mechanism 32.

[0030] The above only is the preferred embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structural transformation, direct or indirect application in other related technical fields by using the content of the present application specification and drawings are also included in the patent protection range of the present application.

Claims

1. A compressor for oxygen generator, characterized in that, it comprises a driving mechanism, a first compression mechanism and a second compression mechanism arranged on the left and right sides of the driving mechanism; a first positive pressure mechanism and a first negative pressure mechanism are arranged on the first compression mechanism, and a second positive pressure mechanism corresponding to the first positive pressure mechanism and a second negative pressure mechanism corresponding to the first negative pressure mechanism are arranged on the second compression mechanism; a positive pressure piston is arranged in the first positive pressure mechanism and the second positive pressure mechanism, and a negative pressure piston is arranged in the first negative pressure mechanism and the second negative pressure mechanism, the inner diameter of the first positive pressure mechanism and the second positive pressure mechanism is larger than that of the first negative pressure mechanism and the second negative pressure mechanism, the size of the positive pressure piston is consistent with that of the negative pressure piston, the material density of the positive pressure piston is greater than that of the negative pressure piston, and the mass of the first positive pressure mechanism and the second positive pressure mechanism is equal to that of the first negative pressure mechanism and the second negative pressure mechanism.

2. The compressor for an oxygen generator according to claim 1, wherein The positive pressure piston is made of zinc alloy, and the negative pressure piston is made of aluminum alloy.

3. The compressor for an oxygen generator according to claim 1, wherein It further comprises an eccentric wheel, the driving mechanism is a motor, the output shafts at both ends of the motor are respectively connected with the eccentric wheels, and the positive pressure piston and the negative pressure piston are respectively fixedly connected with the eccentric wheels.

4. The compressor for an oxygen generator according to claim 1, wherein The first positive pressure mechanism and the second positive pressure mechanism are provided with cooling fins on the outer side surfaces.

5. The compressor for an oxygen generator according to claim 1, wherein It further comprises a first gas outlet pipeline, and the gas inlets of the first gas outlet pipeline are respectively connected with the first positive pressure mechanism and the second positive pressure mechanism.

6. The compressor for an oxygen generator according to claim 1, wherein It further comprises a second gas outlet pipeline and a third gas outlet pipeline, and the gas inlets of the second gas outlet pipeline and the third gas outlet pipeline are respectively connected with the first negative pressure mechanism and the second negative pressure mechanism.

7. The compressor for an oxygen generator according to claim 1, wherein It further comprises an air inlet pipeline, and a first compression mechanism air inlet and a second compression mechanism air inlet are arranged on the side surfaces of the first compression mechanism and the second compression mechanism, and the gas outlets of the air inlet pipeline are respectively connected with the first compression mechanism air inlet and the second compression mechanism air inlet.

8. The compressor for an oxygen generator according to claim 1, wherein The bottom portions of the first compression mechanism and the second compression mechanism are respectively provided with a connecting plate, the connecting plate is provided with a connecting plate connecting hole, and the compressor for oxygen generator is fixedly connected with the oxygen generator through the connecting plate connecting hole.

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