Gas pressure swing adsorption impurity remover

Abstract

The utility model discloses a gas pressure swing adsorption impurity remover which comprises a cylindrical equipment shell, a compression module is arranged in the equipment shell, a gas inlet and a gas outlet of the equipment shell are both communicated with the compression module, and the gas outlet end of the gas inlet is in butt joint with the gas inlet end of the gas outlet through an adsorption module; the compression module comprises a plurality of compression blades rotating synchronously, the adjacent compression blades abut against each other in a crossed mode, all the compression blades are matched to form a regular polygon compression cavity with the side length equal to the number of the compression blades, the side length of the compression cavity synchronously changes along with rotation of the compression blades, and the adsorption module is concentrically and coaxially located in the compression cavity. And gas compression and impurity removal are integrated.

Description

Technical Field

[0001] This utility model relates to the field of gas compression equipment technology, and in particular to a gas pressure swing adsorption (PSA) impurity removal machine. Background Technology

[0002] Traditional air compressors use oil as a power source, resulting in oil molecules in the compressed air. These oil molecules can contaminate the molecular sieve, affecting gas output and concentration.

[0003] When the main reaction is underway, the side reactions also occur simultaneously. These side reactions can introduce impurities into the product and affect its purity. Existing gas compression devices and impurity removal devices are two separate pieces of equipment. Generally, impurity removal is performed first before compression. This requires a larger installation space and is not very convenient to use. Utility Model Content

[0004] This invention provides a gas pressure swing adsorption (PSA) impurity removal machine, which aims to solve the problems existing in the prior art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A gas pressure swing adsorption (PSA) impurity removal machine includes a cylindrical equipment shell, a compression module is provided inside the equipment shell, the air inlet and air outlet of the equipment shell are both connected to the compression module, and the air outlet end of the air inlet and the air inlet end of the air outlet are connected through the adsorption module.

[0007] The compression module includes several synchronously rotating compression blades. Adjacent compression blades cross and abut each other, and all compression blades cooperate to form a compression cavity with the same number of sides as the number of compression blades. The side length of the compression cavity changes synchronously with the rotation of the compression blades, and the adsorption module is located concentrically and coaxially within the compression cavity.

[0008] Preferably, the compression chamber is concentric and coaxial with the equipment housing, and the adsorption module is concentric and coaxial with the compression chamber.

[0009] More preferably, the compression blades are no less than three, and the regular polygon formed by them has no less than three sides.

[0010] Furthermore, all the compression blades are parallel to the equipment housing, and the first and last sides of the compression blades are respectively attached to the vertical surfaces of the corresponding equipment housing. A rotating shaft is provided on one side of the compression blade parallel to the central axis of the equipment housing. The two ends of the rotating shaft pass through the equipment housing through gas seals and rotate in a sealed manner with the equipment housing. The other side of the compression blade parallel to the central axis of the equipment housing is always in close contact with the adjacent compression blade.

[0011] Furthermore, a rubber structure is provided on the side of the compression blade that is in close contact with the adjacent compression blade, and the side of the compression blade is in close contact with the adjacent compression blade through the rubber structure.

[0012] Specifically, the outer side of the device housing located on the air inlet side is detachably equipped with a motor that corresponds one-to-one with the rotating shaft of the compression blade. The motor output shaft and the corresponding rotating shaft of the compression blade are connected by a transmission assembly.

[0013] More preferably, the adsorption module includes a regular polygonal adsorption bed, with its two ends respectively fitted onto the air inlet outlet and the air outlet inlet. The adsorption bed is provided with a plurality of adsorption holes, and the adsorption holes are filled with solid adsorbent.

[0014] Preferably, the outer wall of the device housing is equipped with a pressure display with a built-in controller, an electric air valve is provided at the air outlet, and an air pressure detection sensor is provided at the air outlet on the front side of the air inlet of the electric air valve. The electric air valve is linked with the air pressure detection sensor through the controller, and the air pressure detection sensor is displayed on the pressure display through the controller.

[0015] The beneficial effects of this utility model are:

[0016] 1. This invention uses an external drive device to drive the rotating shaft, which in turn drives the drive blades, causing the compression chamber to shrink and compress the gas. This avoids the contamination of the gas by oil molecules in traditional compression and ensures the purity of the compressed gas.

[0017] 2. The gas compression and adsorption module of this invention can adsorb impurities introduced by side reactions of the production gas, thereby ensuring the purity of the production gas, shortening the process flow, making it safe and convenient, and eliminating pollution during the gas production process.

[0018] 3. The gas pressure swing adsorption integrated impurity removal machine of the present invention is not only environmentally friendly, energy-saving, and efficient, but also automated, safe, reliable, and easy to widely promote. Attached Figure Description

[0019] Figure 1 This is a front view schematic diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the external appearance of the device casing of this utility model;

[0021] Figure 3 This is a schematic diagram of the compression blade in the contracted state of this utility model;

[0022] Figure 4 This is a schematic diagram of the compression blade in its initial state according to this utility model;

[0023] Figure 5 This is a schematic diagram showing the installation of the adsorption module of this utility model inside the equipment casing;

[0024] Figure 6 This is a schematic diagram of the adsorption module of this utility model;

[0025] In the diagram: 1. Gas seal; 2. Compression blade; 3. Rotating shaft; 4. Rubber structure; 5. Pressure display; 6. Electric air valve; 7. Equipment casing; 8. Air inlet; 9. Air outlet; 10. Adsorption bed; 11. Air pressure detection sensor. Detailed Implementation

[0026] The embodiments will be further described below with reference to the accompanying drawings.

[0027] like Figures 1-6 As shown in the preferred embodiment 1, a gas pressure swing adsorption (PSA) impurity removal machine includes a cylindrical equipment shell 7. The equipment shell 7 is provided with a compression module. The air inlet 8 and air outlet 9 of the equipment shell 7 are both connected to the compression module, and the air outlet end of the air inlet 8 and the air inlet end of the air outlet 9 are connected through the adsorption module.

[0028] The compression module includes several synchronously rotating compression blades 2. Adjacent compression blades 2 cross and abut each other, and all compression blades 2 cooperate to form a compression cavity with the same number of sides as the number of compression blades 2. The side length of the compression cavity changes synchronously with the rotation of the compression blades 2, and the adsorption module is located concentrically and coaxially in the compression cavity.

[0029] When in use, by closing the valve of the air outlet 9, the sealed cavity is in a relatively closed state. The device takes in air through the air inlet 8. After the gas is initially adsorbed by the adsorption module, it enters the compression cavity. In the initial state, the compression cavity is in an uncontracted state with a larger side length.

[0030] In the compression state, the compression blades 2 rotate synchronously, and the compression chamber gradually shrinks to compress the gas. At this time, the gas pressure increases, and the gas enters the outlet 9 after secondary adsorption by the adsorption module to form compressed gas. At the same time, impurities in the gas are adsorbed, realizing the integration of compression and adsorption.

[0031] In a preferred embodiment 2, the compression chamber is concentric and coaxial with the equipment housing 7, and the adsorption module is concentric and coaxial with the compression chamber. This arrangement of the compression position prevents interference between the sealed chamber and the adsorption module after compression.

[0032] Furthermore, the compression cavity does not conflict with the adsorption module after it contracts, and its size is always larger than that of the adsorption module.

[0033] Furthermore, the compression cavity and the adsorption module are both regular polygons, and when the compression cavity contracts to its final position, it fits snugly against the outer wall of the adsorption module.

[0034] In a preferred embodiment 3, the compression blades 2 are no fewer than three, forming a regular polygon with no fewer than three sides. This ensures the formation of a sealed cavity with a regular polygonal shape, compressing the internal gas during the shrinkage process.

[0035] The compression blades 2 are all parallel to the equipment housing 7. The first and last sides of the compression blades 2 are respectively attached to the vertical surfaces of the corresponding equipment housing 7 to ensure the airtightness of both ends of the sealed cavity as much as possible without affecting the rotation of the compression blades 2. A rotating shaft 3 is provided on one side of the compression blades 2 parallel to the central axis of the equipment housing 7. The two ends of the rotating shaft 3 pass through the equipment housing 7 through the gas seal 1 and form a sealed rotation with the equipment housing 7 to ensure rotation without leakage. The other side of the compression blades 2 parallel to the central axis of the equipment housing 7 is always in close contact with the adjacent compression blades 2. The two sides of the regular polygon corner formed by the close contact of the compression blades 2 and the adjacent compression blades 2 ensure a certain degree of airtightness of the side of the sealed cavity and also ensure that the regular polygon is enlarged or reduced when rotating synchronously.

[0036] A rubber structure 4 is provided on the side of the compression blade 2 that is in close contact with the adjacent compression blade 2. The side of the compression blade 2 is in close contact with the adjacent compression blade 2 through the rubber structure 4, which ensures a certain degree of airtightness of the side of the sealed cavity, does not affect the opening and closing, and also avoids the adjacent compression blades 2 from scraping each other during rotation, which would affect the service life of the compression blade 2.

[0037] In a more preferred embodiment 4, the outer side of the equipment housing 7, located on the side of the air inlet 8, is detachably equipped with a motor corresponding one-to-one with the rotating shaft 3 of the compression blade 2. The motor output shaft and the corresponding rotating shaft 3 of the compression blade 2 are connected by a transmission assembly. The motor is detachably mounted on the outer side of the equipment housing 7, and a suitable motor can be selected as needed.

[0038] As a preferred transmission component, a coupling can be selected, and the compression process can be controlled by controlling the rotation angle of the motor.

[0039] In a preferred embodiment 5, the adsorption module includes a polygonal adsorption bed 10, with its two ends respectively fitted onto the outlet end of the inlet 8 and the inlet end of the outlet 9. The adsorption bed 10 has a plurality of adsorption pores, each filled with a solid adsorbent. As the gas passes through the adsorption pores, it is adsorbed and purified by the adsorbent. A suitable adsorbent can be selected according to the purification requirements.

[0040] As a preferred embodiment 6, the outer wall of the device housing 7 is provided with a pressure display 5 with a built-in controller, the air outlet 9 is provided with an electric air valve 6, and the air outlet 9 on the front side of the air inlet end of the electric air valve 6 is provided with an air pressure detection sensor 11. The electric air valve 6 is linked with the air pressure detection sensor 11 through the controller, and the air pressure detection sensor 11 is displayed on the pressure display 5 through the controller.

[0041] The pressure display 5, the electric air valve 6, and the air pressure detection sensor 11 are all existing devices. The air pressure at the compressed outlet 9 is detected by the air pressure detection sensor 11. When the air pressure is not less than the set value, the electric air valve 6 is opened by the controller in the pressure display 5 to supply air.

[0042] When the air pressure is lower than the set value, the electric air valve 6 remains closed and waits for the next air supply and compression to ensure the pressure of the supplied air.

[0043] The air pressure is monitored in real time on the outside via the pressure display 5.

[0044] As a preferred embodiment 7, the compression cavity is a regular hexagon, the compression blades 2 are six blades, the maximum rotation angle during compression is 30°, the adsorption bed 10 is a regular hexagon, and when the compression cavity is fully contracted, the inner wall of the compression cavity is in close contact with the outer side of the adsorption bed 10.

[0045] The working principle of this utility model:

[0046] When in use, by closing the valve of the air outlet 9, the sealed cavity is in a relatively closed state. The device takes in air through the air inlet 8. After the gas is initially adsorbed by the adsorption module, it enters the compression cavity. In the initial state, the compression cavity is in an uncontracted state with a larger side length.

[0047] In the compression state, the compression blades 2 rotate synchronously, and the compression chamber gradually shrinks to compress the gas. At this time, the gas pressure increases, and the gas enters the outlet 9 after secondary adsorption by the adsorption module to form compressed gas. At the same time, impurities in the gas are adsorbed, realizing the integration of compression and adsorption.

Claims

1. A pressure swing adsorption gas polishing unit comprising a cylindrical equipment housing (7), characterized in that The device housing (7) is equipped with a compression module. The air inlet (8) and air outlet (9) of the device housing (7) are both connected to the compression module, and the air outlet end of the air inlet (8) and the air inlet end of the air outlet (9) are connected through an adsorption module. The compression module includes several synchronously rotating compression blades (2), adjacent compression blades (2) cross and abut each other, and all compression blades (2) cooperate to form a compression cavity of a regular polygon with the same number of sides as the number of compression blades (2). The side length of the compression cavity changes synchronously with the rotation of the compression blades (2), and the adsorption module is located concentrically and coaxially in the compression cavity.

2. A pressure swing adsorption impurity removal machine according to claim 1, wherein, The compression chamber is coaxial with the equipment shell (7), and the adsorption module is coaxial with the compression chamber.

3. A pressure swing adsorption gas polishing machine according to claim 2, wherein, The compression blades (2) are no less than three, and the regular polygon formed by them has no less than three sides.

4. The pressure swing adsorption impurity removal machine of claim 3, wherein, The compression blades (2) are all parallel to the equipment housing (7). The first and last sides of the compression blades (2) are respectively attached to the vertical surface of the corresponding equipment housing (7). A rotating shaft (3) is provided on one side of the compression blade (2) parallel to the central axis of the equipment housing (7). The two ends of the rotating shaft (3) pass through the equipment housing (7) through the gas seal (1) and form a sealed rotation with the equipment housing (7). The other side of the compression blade (2) parallel to the central axis of the equipment housing (7) is always in close contact with the adjacent compression blade (2).

5. A pressure swing adsorption impurity removal machine according to claim 4, wherein, A rubber structure (4) is provided on the side of the compression blade (2) that is in close contact with the adjacent compression blade (2), and the side of the compression blade (2) is in close contact with the adjacent compression blade (2) through the rubber structure (4).

6. A gas pressure swing adsorption (PSA) impurity removal machine according to claim 5, characterized in that, The outer side of the equipment housing (7) located on the side of the air inlet (8) is detachably equipped with a motor that corresponds one-to-one with the rotating shaft (3) of the compression blade (2). The motor output shaft and the rotating shaft (3) of the corresponding compression blade (2) are connected by a transmission assembly.

7. The pressure swing adsorption gas polishing machine of claim 2, wherein, The adsorption module includes a regular polygonal adsorption bed (10), with the two ends of the adsorption bed (10) respectively fitted onto the air outlet (8) and the air inlet (9). The adsorption bed (10) is provided with a number of adsorption holes, and the adsorption holes are filled with solid adsorbent.

8. The pressure swing adsorption impurity removal machine according to any one of claims 1-7, wherein, The outer wall of the device housing (7) is equipped with a pressure display (5) with a built-in controller. An electric air valve (6) is provided on the air outlet (9). A pressure detection sensor (11) is provided on the air outlet (9) on the front side of the air inlet of the electric air valve (6). The electric air valve (6) is linked with the pressure detection sensor (11) through the controller. The pressure detection sensor (11) is displayed on the pressure display (5) through the controller.

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