Carbon removal machine system for removing carbon dioxide from gas and use method of carbon removal machine system

Abstract

The invention provides a carbon removal machine system for removing carbon dioxide from gas and a using method of the carbon removal machine system, and belongs to the technical field of air compressors. Comprising an air compressor used for generating compressed air; the air storage tank is used for storing compressed air generated by the air compressor; the refrigeration type drying machine is used for carrying out refrigeration type drying on the compressed air; the carbon dioxide carbon removal machine is used for removing carbon dioxide in the compressed air and further drying the compressed air; and the P-stage air filter is arranged between the refrigerated dryer and the air storage tank and at an air outlet of the carbon dioxide removal machine, and the P-stage air filter is used for carrying out primary filtration on the compressed air. According to the invention, carbon dioxide in compressed air can be cleared more thoroughly, carbon dioxide residue is avoided, and the efficiency of clearing carbon dioxide in compressed air is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air compressors, and in particular to a carbon removal system for removing carbon dioxide from gas and a method of using the system. Background Art

[0002] As one of the most important machines for compressing air, air compressor is used in all walks of life. In order to obtain cleaner air, carbon dioxide discharged from the air compressor is generally removed. The removal of carbon dioxide requires the use of a decarbonator, but some existing decarbonator systems for removing carbon dioxide are not ideal for removing carbon dioxide during use. Therefore, the present application provides a decarbonator system for removing carbon dioxide from gas and a method of using it to meet the demand. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a carbon removal machine system for removing carbon dioxide from gas and a use method thereof to solve the existing problems.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] A carbon removal machine system for removing carbon dioxide from gas and a method of using the same, comprising: an air compressor, the air compressor being used to generate compressed air;

[0006] An air storage tank, wherein the air storage tank is used to store compressed air generated by the air compressor;

[0007] A refrigerated dryer, wherein the refrigerated dryer is used to refrigerate and dry compressed air;

[0008] A carbon dioxide decarbonizer, which is used to remove carbon dioxide from compressed air and further dry the compressed air;

[0009] A P-class air filter, which is arranged between the refrigerated dryer and the gas storage tank, and at the air outlet of the carbon dioxide decarbonizer, and is used for primary filtering of the compressed air;

[0010] The S-class air filter is arranged between the refrigerated dryer and the carbon dioxide decarbonizer, and at the rear end of the P-class air filter at the outlet of the carbon dioxide decarbonizer. The S-class air filter is used for secondary filtration of the compressed air to ensure the cleanliness of the compressed air.

[0011] In a possible implementation, the carbon dioxide decarbonizer includes an operating tower, which is used to remove carbon dioxide from compressed air and perform secondary drying of the compressed air. Adsorbent and molecular sieves are arranged inside the operating tower, and the molecular sieve is located at the top of the operating tower.

[0012] In a possible implementation, the carbon dioxide decarbonizer further includes a regeneration tower, which is used to recover the carbon dioxide that escapes due to the interaction between the molecular sieve and the carbon dioxide molecules, and discharge it to the outside of the adsorption system along with the regeneration gas.

[0013] In a possible implementation, the carbon dioxide decarbonizer further comprises a compressed air inlet, and the compressed air inlet is used to introduce the compressed air dried by the refrigerated dryer into the carbon dioxide decarbonizer;

[0014] A dry compressed air outlet, wherein the dry compressed air outlet is used to discharge the dry compressed air after the carbon dioxide is removed;

[0015] Pneumatic air inlet valve; the pneumatic air inlet valve is used to control the intake of compressed air;

[0016] A pneumatic exhaust valve, the pneumatic exhaust valve is used to control the exhaust of recycled air;

[0017] One-way valve and non-return valve, both of which are used to prevent air backflow;

[0018] A regeneration air volume regulating valve is used to control the regeneration air volume entering the regeneration tower.

[0019] In a possible implementation, the carbon dioxide decarbonizer further includes a muffler, which is used to mute the gas discharged from the regeneration tower and then discharge it to the outside;

[0020] The heater is used to reduce the pressure of a part of the dry air through the regeneration air volume regulating valve and enter the heater for heating, and then enter the regeneration tower to bring the moisture in the tower into the atmosphere through the muffler.

[0021] In a possible implementation, the carbon dioxide decarbonizer further includes a controller, which is used to open and close the heater, the regeneration air volume regulating valve, the pneumatic air inlet valve and the pneumatic exhaust valve.

[0022] A method for using a carbon removal system for removing carbon dioxide from gas comprises the following steps:

[0023] S1. The air is compressed by the air compressor and then stored in the air tank;

[0024] S2. The compressed air in the air storage tank is filtered through a P-level air filter and then enters the refrigerated dryer for freeze drying;

[0025] S3, the compressed air after freeze drying is filtered twice through the S-level air filter, and then enters the carbon dioxide removal machine to remove carbon dioxide, and the compressed air is dried again;

[0026] S4. The compressed air after removing carbon dioxide is filtered through P-level air filters and S-level air filters in turn, and finally input into the gas usage site.

[0027] In a possible implementation, the specific steps of removing carbon dioxide in S3 are:

[0028] S301, the compressed air after freeze drying enters through the compressed air inlet, and then enters the operating tower through the pneumatic air inlet valve, so that the remaining moisture in the compressed air is absorbed by the adsorbent to dry and remove carbon dioxide. When the air flows to the top of the tower, the moisture in the air is completely absorbed, and the carbon dioxide is adsorbed by the molecular sieve;

[0029] S302, the compressed air after the carbon dioxide is removed is discharged through the pipeline and the dry compressed air outlet;

[0030] S303, a part of the dry air is decompressed by the regeneration air volume regulating valve and enters the heater for heating, and then enters the recovery tower to bring the moisture in the tower to the atmosphere through the muffler;

[0031] S304. After using for a period of time, close the check valve, and the heat energy stored in the adsorption bed promotes the desorption of the adsorbed carbon dioxide. Due to the release of pressure during venting, the concentration of the adsorbate components changes, and the adsorbed carbon dioxide can easily escape by overcoming the force between the molecular sieve and the carbon dioxide molecules, and then enter the regeneration tower and be discharged through the muffler.

[0032] In a possible implementation, the circulation tower and the regeneration tower are used alternately. During the operation of the operation tower, the recovery tower is in hot regeneration and cold regeneration states, and the alternating time between the two is controlled within 3-5 hours.

[0033] Compared with the prior art, the present invention has at least the following beneficial effects:

[0034] In the above scheme, the compressed air after freeze drying enters through the compressed air inlet, and then enters the operating tower through the pneumatic air inlet valve, so that the remaining moisture in the compressed air is absorbed by the adsorbent to dry and remove carbon dioxide. When the air flows to the top of the tower, the moisture in the air is completely absorbed, and the carbon dioxide is adsorbed by the molecular sieve. The compressed air after removing carbon dioxide is discharged through the pipeline and the dry compressed air outlet. A part of the dry air is reduced in pressure by the regeneration air volume regulating valve and enters the heater for heating, and then enters the recovery tower to bring the moisture in the tower to the atmosphere through the muffler. After a period of use, the check valve is closed, and the heat energy stored in the adsorption bed promotes the desorption of carbon dioxide after adsorption. Due to the release of pressure during venting, the concentration of the adsorbent component changes, and the adsorbed carbon dioxide is easy to escape from overcoming the force between the molecular sieve and the carbon dioxide molecules, and then enters the regeneration tower and is discharged through the muffler, so that the carbon dioxide in the compressed air can be removed more thoroughly, avoiding carbon dioxide residue and improving the efficiency of removing carbon dioxide in the compressed air. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0036] Figure 1 The overall structural diagram of the carbon removal system for removing carbon dioxide from gas is shown in FIG.

[0037] Figure 2 The working flow diagram of the carbon dioxide removal machine in the carbon removal machine system for removing carbon dioxide from gas.

[0038] [reference numerals]

[0039] 1. Air compressor; 2. Air storage tank; 3. P-class air filter; 4. Refrigerated dryer; 5. S-class air filter; 6. Carbon dioxide decarbonizer; 61. Operation tower; 62. Regeneration tower; 63. Compressed air inlet; 64. Dry compressed air outlet; 65. Pneumatic air inlet valve; 66. Pneumatic exhaust valve; 67. Controller; 68. Heater; 69. Muffler; 610. One-way valve; 611. Check valve; 612. Regeneration air volume regulating valve.

[0040] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION

[0041] The following is a detailed description of a carbon removal system for removing carbon dioxide from gas and a method of using the carbon removal system provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are listed as the best and preferred embodiments, and other alternatives can also be used by technicians in some known technical fields; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0042] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiment", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0043] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0044] It will be understood that the meaning of “on,” “over,” and “above” in this disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0045] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0046] Example 1

[0047] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a carbon removal machine system for removing carbon dioxide from gas and a method of using the same, comprising an air compressor 1, wherein the air compressor 1 is used to generate compressed air;

[0048] An air storage tank 2, wherein the air storage tank 2 is used to store compressed air generated by the air compressor 1;

[0049] A refrigerated dryer 4, wherein the refrigerated dryer 4 is used for refrigerated drying of compressed air;

[0050] A carbon dioxide decarbonizer 6, which is used to remove carbon dioxide from the compressed air and further dry the compressed air;

[0051] A P-class air filter 3, which is arranged between the refrigerated dryer 4 and the gas storage tank 2, and at the air outlet of the carbon dioxide decarbonizer 6, and is used for filtering the compressed air once;

[0052] The S-class air filter 5 is arranged between the refrigerated dryer 4 and the carbon dioxide decarbonizer 6, and at the rear end of the P-class air filter 3 at the outlet of the carbon dioxide decarbonizer 6. The S-class air filter 5 is used for secondary filtration of the compressed air to ensure the cleanliness of the compressed air.

[0053] What needs to be further explained in this embodiment is that the carbon dioxide decarbonator 6 includes an operating tower 61, which is used to remove carbon dioxide from compressed air and perform secondary drying of the compressed air. An adsorbent and a molecular sieve are arranged inside the operating tower 61, and the molecular sieve is located at the top of the operating tower 61. The carbon dioxide decarbonator 6 also includes a regeneration tower 62, which is used to recover the carbon dioxide that has escaped from the interaction between the molecular sieve and the carbon dioxide molecules, and discharge it to the adsorption system along with the regenerated gas. The carbon dioxide decarbonator 6 also includes a compressed air inlet 63, which is used to introduce the compressed air dried by the refrigerated dryer 4 into the carbon dioxide decarbonator 6; a dry compressed air outlet 64, which is used to discharge the dry compressed air after the carbon dioxide is removed; a pneumatic air inlet valve 65; the pneumatic air inlet valve 65 is used to control the entry of compressed air; and a pneumatic exhaust Valve 66, the pneumatic exhaust valve 66 is used to control the discharge of recycled air; a one-way valve 610 and a check valve 611, the one-way valve 610 and the check valve 611 are both used to prevent air backflow; a regeneration air volume regulating valve 612, the regeneration air volume regulating valve 612 is used to control the regeneration air volume entering the regeneration tower 62. In a possible implementation, the carbon dioxide decarbonizer 6 also includes a muffler 69, the muffler 69 is used to mute the gas discharged from the regeneration tower 62, and then discharge it to the outside; a heater 68, the heater 68 is used to reduce the pressure of a part of the dry air through the regeneration air volume regulating valve 612 to enter the heater 68 for heating, and then enter the regeneration tower 62 to bring the moisture in the tower to the atmosphere through the muffler 69. The carbon dioxide decarbonizer 6 also includes a controller 67, the controller 67 is used to open and close the heater 68, the regeneration air volume regulating valve 612, the pneumatic air inlet valve 65 and the pneumatic exhaust valve 66.

[0054] Example 2

[0055] like Figure 2 As shown, a method for using a carbon removal system for removing carbon dioxide from gas comprises the following steps:

[0056] S1, air is compressed by air compressor 1, and then enters air storage tank 2 for storage;

[0057] S2, the compressed air in the air storage tank 2 is filtered through the P-level air filter 3, and then enters the refrigerated dryer 4 for freeze drying;

[0058] S3, the compressed air after freeze drying is filtered twice through the S-level air filter 5, and then enters the carbon dioxide removal machine 6 to remove carbon dioxide and dry the compressed air again;

[0059] S4. The compressed air after the removal of carbon dioxide is filtered through the P-level air filter 3 and the S-level air filter 5 in turn, and finally input into the gas use site.

[0060] In a possible implementation, the specific steps of removing carbon dioxide in S3 are:

[0061] S301, the compressed air after freeze drying enters through the compressed air inlet 63, and then enters the operating tower 61 through the pneumatic air inlet valve 65, so that the remaining moisture in the compressed air is absorbed by the adsorbent to dry and remove carbon dioxide. When the air flows to the top of the tower, the moisture in the air is completely absorbed, and the carbon dioxide is adsorbed by the molecular sieve;

[0062] S302, the compressed air after the carbon dioxide is removed is discharged through the pipeline and the dry compressed air outlet 64;

[0063] S303, a portion of the dry air is decompressed by the regeneration air volume regulating valve 612 and enters the heater 68 for heating, and then enters the recovery tower to bring the moisture in the tower to the atmosphere through the muffler 69;

[0064] S304. After a period of use, the check valve 611 is closed, and the heat energy stored in the adsorption bed promotes the desorption of the adsorbed carbon dioxide. Due to the release of pressure during venting, the concentration of the adsorbate component changes, and the adsorbed carbon dioxide can easily escape by overcoming the force between the molecular sieve and the carbon dioxide molecules, and then enters the regeneration tower 62 and is discharged through the muffler 69.

[0065] It should be further explained in this embodiment that the circulation tower and the regeneration tower 62 are used alternately. During the operation of the operation tower 61, the recovery tower is in the hot regeneration and cold regeneration states, and the alternating time between the two is controlled within 3-5 hours.

[0066] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0067] A person skilled in the art will appreciate that all or part of the steps in the above-mentioned embodiment method can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc.

[0068] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A carbon removal system for removing carbon dioxide from gas, characterized in that: include: An air compressor (1), the air compressor (1) being used to generate compressed air; An air storage tank (2), wherein the air storage tank (2) is used to store compressed air generated by the air compressor (1); A refrigerated dryer (4), wherein the refrigerated dryer (4) is used to refrigerate and dry compressed air; A carbon dioxide decarbonizer (6), wherein the carbon dioxide decarbonizer (6) is used to remove carbon dioxide from the compressed air and further dry the compressed air; A P-class air filter (3), the P-class air filter (3) being arranged between the refrigerated dryer (4) and the gas storage tank (2), and at the air outlet of the carbon dioxide removal machine (6), the P-class air filter (3) being used for primary filtering of the compressed air; An S-class air filter (5) is arranged between the refrigerated dryer (4) and the carbon dioxide decarbonizer (6), and at the rear end of the P-class air filter (3) at the outlet of the carbon dioxide decarbonizer (6). The S-class air filter (5) is used for secondary filtration of the compressed air to ensure the cleanliness of the compressed air.

2. The carbon removal system for removing carbon dioxide from gas according to claim 1, characterized in that: The carbon dioxide decarbonizer (6) comprises an operating tower (61), and the operating tower (61) is used to remove carbon dioxide from compressed air and perform secondary drying of the compressed air. An adsorbent and a molecular sieve are arranged inside the operating tower (61), and the molecular sieve is located at the top of the operating tower (61).

3. The carbon removal system for removing carbon dioxide from gas according to claim 2, characterized in that: The carbon dioxide decarbonizer (6) further comprises a regeneration tower (62), wherein the regeneration tower (62) is used to recover the carbon dioxide that has escaped due to the interaction between the molecular sieve and the carbon dioxide molecules, and discharge it to the outside of the adsorption system along with the regeneration gas.

4. The carbon removal system for removing carbon dioxide from gas according to claim 1, characterized in that: The carbon dioxide decarbonizer (6) further comprises a compressed air inlet (63), wherein the compressed air inlet (63) is used to introduce the compressed air dried by the refrigeration dryer (4) into the carbon dioxide decarbonizer (6); A dry compressed air outlet (64), wherein the dry compressed air outlet (64) is used to discharge the dry compressed air after the carbon dioxide is removed; A pneumatic air inlet valve (65); the pneumatic air inlet valve (65) is used to control the intake of compressed air; a pneumatic exhaust valve (66), the pneumatic exhaust valve (66) being used to control the exhaust of recycled air; A one-way valve (610) and a non-return valve (611), wherein the one-way valve (610) and the non-return valve (611) are used to prevent air from flowing back; A regeneration air volume regulating valve (612), wherein the regeneration air volume regulating valve (612) is used to control the regeneration air volume entering the regeneration tower (62).

5. The carbon removal system for removing carbon dioxide from gas according to claim 4, characterized in that: The carbon dioxide decarbonizer (6) further comprises a muffler (69), wherein the muffler (69) is used to muffle the gas discharged from the regeneration tower (62) and then discharge the gas to the outside; The heater (68) is used to reduce the pressure of a portion of the dry air through the regeneration air volume regulating valve (612) and allow the air to enter the heater (68) for heating, and then enter the regeneration tower (62) to bring the moisture in the tower into the atmosphere through the muffler (69).

6. The carbon removal system for removing carbon dioxide from gas according to claim 2, characterized in that: The carbon dioxide decarbonizer (6) further comprises a controller (67), wherein the controller (67) is used to open and close the heater (68), the regeneration air volume regulating valve (612), the pneumatic air inlet valve (65) and the pneumatic exhaust valve (66).

Images