A 3-tower combined oil and gas recovery device

Abstract

This utility model relates to the field of oil and gas recovery technology, specifically to a three-tower combined oil and gas recovery device. It includes a first adsorption tower, a second adsorption tower, and a third adsorption tower. Each of the three towers is filled with adsorption packing material for adsorption. Simultaneously, when two adsorption towers work together for adsorption, the remaining tower performs desorption. This structure enables adsorption by two towers, effectively increasing the oil and gas adsorption time and the residence time of gas within the adsorption towers, resulting in more thorough adsorption. Furthermore, the three-tower combination improves the utilization rate of each tower, leading to higher oil and gas processing efficiency per tower. This solves the problem of poor single-tower utilization and processing efficiency in existing oil and gas recovery devices during practical use.

Description

Technical Field

[0001] This utility model relates to the field of oil and gas recovery technology, and in particular to a three-tower combined oil and gas recovery device. Background Technology

[0002] The principle of gasoline recovery adsorption is mainly based on the mechanisms of physical and chemical adsorption. In an oil and gas recovery system, when gasoline and gas pass through an adsorption tower, hydrocarbons in the gas are captured by an adsorbent (such as activated carbon). Activated carbon has a large surface area for absorption, which can attract and retain hydrocarbons in the air-gas mixture, thereby achieving adsorption treatment.

[0003] A search revealed that prior art CN209848610U discloses an oil and gas recovery device, comprising a gasoline storage tank connected to the gasoline tanker of a tanker truck via a pipeline. The gasoline tank is also connected to a dehumidification tank via a pipeline. The dehumidification tank is further connected to a first adsorption tower and a second adsorption tower. The first and second adsorption towers are also connected to a vacuum pump, which is connected to the absorption tower. The top of the absorption tower is connected to the dehumidification tank, the upper end of the absorption tower is connected to the lower end of the gasoline storage tank, and the bottom of the absorption tower is connected to the upper end of the gasoline storage tank. This adsorption device can effectively adsorb oil and gas, recycle spilled oil and gas, and can operate continuously, thus improving oil and gas recovery efficiency.

[0004] However, in actual use, the above-mentioned devices have the problem of poor utilization rate and processing efficiency of a single tower. Utility Model Content

[0005] The purpose of this invention is to provide a three-tower combined oil and gas recovery device, which aims to solve the problem of poor single-tower utilization and processing efficiency in the actual use of existing oil and gas recovery devices.

[0006] To achieve the above objectives, this utility model provides a three-tower combined oil and gas recovery device, including a first adsorption tower, a second adsorption tower and a third adsorption tower, wherein the first adsorption tower, the second adsorption tower and the third adsorption tower are each filled with adsorption packing material.

[0007] When two adsorption towers (the first, second, and third adsorption towers) cooperate to perform adsorption, the remaining adsorption tower performs desorption.

[0008] When the first and second adsorption towers perform adsorption, the third adsorption tower performs desorption. The adsorbed gas flows sequentially through: input pipe, FIT-1, HCV-1A, first adsorption tower, HCV-5B, second adsorption tower, and HCV-2B, with the clean gas finally discharged from FA-4. The desorbed gas from the third adsorption tower flows sequentially through HCV-3C, A1ST1, and FA-2, and is finally desorbed by a vacuum pump and enters the recovery tower for absorption and reuse.

[0009] When the second and third adsorption towers perform adsorption, the first adsorption tower performs desorption. The adsorbed gas flows sequentially through: input pipe, FIT-1, HCV-1B, second adsorption tower, HCV-5C, third adsorption tower, and HCV-2C, with the clean gas finally discharged from FA-4. The desorbed gas from the first adsorption tower flows sequentially through HCV-3A, A1ST1, and FA-2, and is finally desorbed by a vacuum pump and enters the recovery tower for absorption and reuse.

[0010] When the third adsorption tower and the first adsorption tower adsorb, the second adsorption tower desorbs. The adsorbed gas flows sequentially through: input pipe, FIT-1, HCV-1C, third adsorption tower, HCV-5A, first adsorption tower and HCV-2A, and finally the clean gas is discharged from FA-4. The desorbed gas flows sequentially through: the oil and gas adsorbed in the second adsorption tower passes through HCV-3B, A1ST1 and FA-2, and finally desorbed by a vacuum pump and enters the recovery tower for absorption and reuse.

[0011] The adsorption filler material is made of silica gel particles.

[0012] The adsorption filler can also be activated carbon particles.

[0013] This utility model discloses a three-tower combined oil and gas recovery device. The first, second, and third adsorption towers are each filled with adsorption packing for adsorption. Simultaneously, when two adsorption towers work together for adsorption, the remaining tower performs desorption. This structure enables two-tower adsorption, effectively increasing the oil and gas adsorption time and the residence time of gas within the adsorption towers, resulting in more thorough adsorption. Furthermore, the single-tower desorption reduces the demand for vacuum pump suction, saving on vacuum pump investment costs and lowering operating costs. Moreover, the three-tower combination improves the utilization rate of each tower, resulting in higher single-tower oil and gas processing efficiency, thus solving the problem of poor single-tower utilization and processing efficiency in existing oil and gas recovery devices during practical use. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the overall structure of the 3-tower combined oil and gas recovery device of this utility model.

[0016] Figure 2 This is a schematic diagram showing the connection between the three-tower combined oil and gas recovery device and the vacuum pump assembly of this utility model.

[0017] In the diagram: 101-First adsorption tower, 102-Second adsorption tower, 103-Third adsorption tower, 104-Adsorption packing, 105-Input pipe, 106-Vacuum pump assembly. Detailed Implementation

[0018] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0019] like Figure 1 and Figure 2 As shown, where Figure 1 This is a schematic diagram of the overall structure of a three-tower combined oil and gas recovery unit. Figure 2 This is a schematic diagram showing the connection between the three-tower combined oil and gas recovery device and the vacuum pump assembly 106. This invention provides a three-tower combined oil and gas recovery device: including a first adsorption tower 101, a second adsorption tower 102, and a third adsorption tower 103. Each of the three towers is filled with adsorption packing 104. When two towers cooperate for adsorption, the remaining tower performs desorption. This solution addresses the problem of poor single-tower utilization and processing efficiency in existing oil and gas recovery devices. It is understood that this solution can improve the utilization rate of a single tower and the oil and gas processing efficiency.

[0020] The following explanations are provided for the corresponding auxiliary markings in the attached diagram: FIT-1 is a flow meter with display; HCV-1A, HCV-1B, HCV-1C, HCV-2B, HCV-2C, HCV-2A, HCV-3A, HCV-3B, HCV-3C, HCV-5B, HCV-5C, and HCV-5A are control valves; FA-4 and FA-2 are detonation arrestors; and A1ST1 is a magnetic filter.

[0021] In this embodiment, the first adsorption tower 101, the second adsorption tower 102 and the third adsorption tower 103 are each filled with adsorption packing 104, which is used to adsorb oil and gas.

[0022] In this structure, when two adsorption towers (the first adsorption tower 101, the second adsorption tower 102, and the third adsorption tower 103) work together for adsorption, the remaining adsorption tower performs desorption. This structure can achieve a three-tower structure. During operation, the oil and gas adsorption time can be effectively increased by adsorbing through two towers, the gas residence time in the adsorption tower becomes longer, and the oil and gas adsorption can be more thorough.

[0023] When the first adsorption tower 101 and the second adsorption tower 102 perform adsorption, the third adsorption tower 103 performs desorption. The adsorbed gas flows sequentially through: input pipe 105, FIT-1, HCV-1A, first adsorption tower 101, HCV-5B, second adsorption tower 102, and HCV-2B, with the clean gas finally discharged from FA-4. The desorbed gas from the third adsorption tower 103 flows sequentially through HCV-3C, A1ST1, and FA-2, and is finally desorbed by a vacuum pump and enters the recovery tower for absorption and reuse. In this embodiment, adsorption is performed by the first adsorption tower 101 and the second adsorption tower 102, while desorption is performed by the third adsorption tower 103, achieving adsorption by two towers and desorption by a single tower. This improves the utilization rate and processing efficiency of a single tower and extends the gas adsorption time.

[0024] Secondly, while the second adsorption tower 102 and the third adsorption tower 103 are performing adsorption, the first adsorption tower 101 is performing desorption. The adsorbed gas flows sequentially through: input pipe 105, FIT-1, HCV-1B, second adsorption tower 102, HCV-5C, third adsorption tower 103, and HCV-2C, with the clean gas finally discharged from FA-4. The desorbed gas from the first adsorption tower 101 flows sequentially through HCV-3A, A1ST1, and FA-2, and is finally desorbed by a vacuum pump and enters the recovery tower for absorption and reuse. In this embodiment, adsorption is performed by the second adsorption tower 102 and the third adsorption tower 103, while desorption is performed by the first adsorption tower 101. This achieves adsorption by two towers and desorption by a single tower, which improves the utilization rate and processing efficiency of a single tower and extends the gas adsorption time. Furthermore, the corresponding adsorption towers can be switched between adsorption and desorption.

[0025] Then, while the third adsorption tower 103 and the first adsorption tower 101 are performing adsorption, the second adsorption tower 102 is performing desorption. The adsorbed gas flows sequentially through: input pipe 105, FIT-1, HCV-1C, third adsorption tower 103, HCV-5A, first adsorption tower 101, and HCV-2A, with the clean gas finally discharged from FA-4. The desorbed gas flows sequentially through: the oil and gas adsorbed in the second adsorption tower 102 passes through HCV-3B, A1ST1, and FA-2, and is finally desorbed by a vacuum pump and enters the recovery tower for absorption and reuse. In this embodiment, adsorption is performed by the first adsorption tower 101 and the third adsorption tower 103, while desorption is performed by the second adsorption tower 102. This achieves adsorption by two towers and desorption by a single tower, which improves the utilization rate and processing efficiency of a single tower and extends the gas adsorption time. Furthermore, the corresponding adsorption towers can be switched between adsorption and desorption. The inlet of the input pipe 105 is located near the oil and gas outlet of the oil storage tank or the outlet of the gasoline dispensing area.

[0026] Furthermore, the adsorption packing material 104 is made of silica gel particles. The silica gel particles are directly filled in the first adsorption tower 101, the second adsorption tower 102, or the third adsorption tower 103.

[0027] Finally, the adsorption packing 104 can also be activated carbon particles. Similarly, activated carbon particles can be directly filled into the first adsorption tower 101, the second adsorption tower 102, or the third adsorption tower 103, and can be used in conjunction with silica gel particles in actual use. When used in conjunction, the silica gel particles are on the bottom side.

[0028] When using this invention to address the problem of poor single-tower utilization and processing efficiency in existing oil and gas recovery devices during actual use, the first adsorption tower 101, the second adsorption tower 102, and the third adsorption tower 103 are all filled with adsorption packing material 104 for adsorption. Simultaneously, when two adsorption towers (first, second, and third) cooperate in adsorption, the remaining tower performs desorption. This structure enables two-tower adsorption, effectively increasing the oil and gas adsorption time and the residence time of gas within the adsorption tower, resulting in more thorough adsorption. Furthermore, the single-tower desorption reduces the vacuum pump's suction capacity requirement, saving on vacuum pump investment costs and lowering operating costs. Moreover, the three-tower combined structure also improves the utilization rate of each tower, resulting in higher single-tower oil and gas processing efficiency, thus solving the problem of poor single-tower utilization and processing efficiency in existing oil and gas recovery devices during actual use.

[0029] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A three-tower combined oil and gas recovery device, comprising a first adsorption tower, a second adsorption tower, and a third adsorption tower, characterized in that: The first adsorption tower, the second adsorption tower, and the third adsorption tower are all filled with adsorption packing material. When two adsorption towers (the first, second, and third adsorption towers) cooperate to perform adsorption, the remaining adsorption tower performs desorption. When the first and second adsorption towers perform adsorption, the third adsorption tower performs desorption. The adsorbed gas flows sequentially through: input pipe, FIT-1, HCV-1A, first adsorption tower, HCV-5B, second adsorption tower, and HCV-2B, with the clean gas finally discharged from FA-4. The desorbed gas from the third adsorption tower flows sequentially through HCV-3C, A1ST1, and FA-2, and is finally desorbed by a vacuum pump and enters the recovery tower for absorption and reuse.

2. The three-tower combined oil and gas recovery device as described in claim 1, characterized in that: When the second and third adsorption towers perform adsorption, the first adsorption tower performs desorption. The adsorbed gas flows sequentially through: input pipe, FIT-1, HCV-1B, second adsorption tower, HCV-5C, third adsorption tower, and HCV-2C, with the clean gas finally discharged from FA-4. The desorbed gas from the first adsorption tower flows sequentially through HCV-3A, A1ST1, and FA-2, and is finally desorbed by a vacuum pump and enters the recovery tower for absorption and reuse.

3. The three-tower combined oil and gas recovery device as described in claim 2, characterized in that: When the third adsorption tower and the first adsorption tower adsorb, the second adsorption tower desorbs. The adsorbed gas flows sequentially through: input pipe, FIT-1, HCV-1C, third adsorption tower, HCV-5A, first adsorption tower and HCV-2A, and finally the clean gas is discharged from FA-4. The desorbed gas flows sequentially through: the oil and gas adsorbed in the second adsorption tower passes through HCV-3B, A1ST1 and FA-2, and finally is desorbed by a vacuum pump and enters the recovery tower for absorption and reuse.

4. The three-tower combined oil and gas recovery device as described in claim 1, characterized in that: The adsorption filler is made of silica gel particles.

5. The 3-column combined oil and gas recovery unit of claim 4, wherein : The adsorption filler can also be activated carbon particles.

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