Dehydration device capable of changing regeneration process

Abstract

The utility model relates to the field of gas dehydration treatment, in particular to a dehydration device capable of changing a regeneration process. Comprising a main gas inlet pipe and a main exhaust pipe, an adsorption tower and a regeneration tower which are connected in parallel are arranged between the main gas inlet pipe and the main exhaust pipe through a pipeline, the regeneration tower is connected with a regeneration gas separator, a first pipeline is arranged between the gas inlet pipe and the regeneration gas separator, and a first valve is arranged on the first pipeline; a second pipeline is arranged between the outlet ends of the adsorption tower and the regeneration tower and the regenerated gas separator, and a second valve is arranged on the first pipeline; a third pipeline is arranged between the adsorption tower and the outlet end of the regeneration tower, and a third valve is arranged on the third pipeline. According to the dehydration device capable of changing the regeneration process, the appropriate regeneration process can be flexibly selected according to the equipment use working condition and the exhaust quality.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of gas dehydration treatment, specifically relates to a dehydration device suitable for variable regeneration process of natural gas. BACKGROUND

[0002] In the natural gas dehydration treatment industry, the designer can select different regeneration process according to the equipment working condition. Different regeneration processes have their own application range, and the regeneration effect is also different. The regeneration process mainly has two kinds of conventional closed cycle process and large closed cycle process. Generally, only one kind of regeneration process is selected on a set of dehydration device, so that the function is limited in use. CONTENT OF UTILITY MODEL

[0003] The utility model intends to provide a dehydration device of variable regeneration process, which can select appropriate regeneration process flexibly according to equipment working condition and exhaust quality.

[0004] The dehydration device of variable regeneration process in the scheme, including main inlet pipe and main exhaust pipe, the main inlet pipe and main exhaust pipe are equipped with parallel adsorption tower and regeneration tower through pipeline, the regeneration tower is connected with regeneration gas separator, the first pipeline is equipped between the inlet pipe and the regeneration gas separator, the first valve is equipped on the first pipeline, the second pipeline is equipped between the outlet end of the adsorption tower and the regeneration tower and the regeneration gas separator, the second valve is equipped on the first pipeline, the third pipeline is equipped between the outlet end of the adsorption tower and the regeneration tower, and the third valve is equipped on the third pipeline.

[0005] The technical scheme mainly adopts three valves to switch different regeneration process. When the exhaust quality requirement is not high or the regeneration operation needs to be carried out independently, the conventional closed cycle process can be selected, at this time, the second valve is opened, and the first valve and the third valve are closed. When the exhaust quality needs to be improved, and better regeneration effect is needed, the large closed cycle regeneration process can be selected, at this time, the second valve is closed, and the first valve and the third valve are opened.

[0006] Further, the second pipeline is also provided with an electric heater. The electric heater is used for heating natural gas.

[0007] Further, the second valve and the electric heater are provided with a regeneration gas compressor. The main function of the regeneration gas compressor is to compress the low-pressure regeneration gas to a high enough pressure, so as to be re-added to the treatment process. This compression process can fully recover heat energy and reduce carbon loss, and improve the overall treatment efficiency.

[0008] Further, the main exhaust pipe is provided with an outlet filter.

[0009] Further, the outlet end of the third pipeline is arranged on the main exhaust pipe behind the outlet filter.

[0010] Further, the adsorption tower and the regenerator tower are provided with a fourth pipeline with an air cooler arranged on the fourth pipeline. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a structural schematic view of the dehydration device with changeable regeneration process.

[0012] In the figure, 1 is a main air inlet pipe, 2 is a main exhaust pipe, 3 is an adsorption tower, 4 is a regenerator tower, 5 is a regenerative gas separator, 6 is a first pipeline, 7 is a first valve, 8 is a second pipeline, 9 is a second valve, 10 is a third pipeline, 11 is a third valve, 12 is an electric heater, 13 is a regenerative gas compressor, 14 is an outlet filter, 15 is a fourth pipeline, and 16 is an air cooler. DETAILED DESCRIPTION

[0013] The present application will be further described in detail in combination with the drawings and specific embodiments:

[0014] According to Figure 1 As shown in the figure, the dehydration device with changeable regeneration process in the present application comprises a main air inlet pipe 1 and a main exhaust pipe 2, and the main air inlet pipe 1 and the main exhaust pipe 2 are provided with parallel adsorption towers 3 and regenerator towers 4 through pipelines, the regenerator tower 4 is connected with a regenerative gas separator 5, a first pipeline 6 is arranged between the air inlet pipe and the regenerative gas separator 5, and a first valve 7 is arranged on the first pipeline 6; an electric heater 12 is further arranged on the second pipeline 8. The electric heater 12 is used for heating natural gas. The main exhaust pipe 2 is provided with an outlet filter 14. The main function of the outlet filter is to filter impurities and particles in the material, so as to prevent them from mixing into the next process or entering the downstream equipment, thereby protecting the downstream equipment from being damaged.

[0015] The adsorption tower 3 and the regenerator tower 4 are provided with a second pipeline 8 between the outlet end and the regenerative gas separator 5, a second valve 9 is arranged on the first pipeline 6; a regenerative gas compressor 13 is arranged between the second valve 9 and the electric heater 12. The main function of the regenerative gas compressor 13 is to compress the low-pressure regenerative gas to a high enough pressure, so as to be re-added to the treatment process. This compression process can fully recover heat energy and reduce carbon loss, and improve the overall treatment efficiency.

[0016] A third pipeline 10 is arranged between the outlet ends of the adsorption tower 3 and the regeneration tower 4, and a third valve 11 is arranged on the third pipeline 10. The outlet end of the third pipeline 10 is arranged on the main exhaust pipe 2 after the outlet filter 14.

[0017] A fourth pipeline 15 is arranged between the inlet ends of the adsorption tower 3 and the regeneration tower 4 and the regeneration gas separator 5, and an air cooler 16 is arranged on the fourth pipeline 15.

[0018] The technical scheme mainly adopts three valves to switch different regeneration process flows. When the exhaust quality requirement is not high or independent regeneration operation is needed, the conventional closed cycle process can be selected, at this time, the second valve 9 is opened, and the first valve 7 and the third valve 11 are closed. When the exhaust quality needs to be improved and better regeneration effect is needed, the large closed cycle regeneration process can be selected, at this time, the second valve 9 is closed, and the first valve 7 and the third valve 11 are opened.

[0019] The above is only an embodiment of the present application, and the well-known specific structure and characteristics and other common knowledge in the scheme are not described in detail. It should be pointed out that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection range of the present application, and these will not affect the effect and practicality of the present application.

Claims

1. A dehydration device with a variable regeneration process, comprising a main inlet pipe and a main outlet pipe, wherein an adsorption tower and a regeneration tower are connected in parallel via a pipeline between the main inlet pipe and the main outlet pipe, and the regeneration tower is connected to a regeneration gas separator, characterized in that: A first pipeline is provided between the air inlet pipe and the regenerated gas separator, and a first valve is provided on the first pipeline; a second pipeline is provided between the outlet end of the adsorption tower and the regeneration tower and the regenerated gas separator, and a second valve is provided on the first pipeline; a third pipeline is provided between the outlet end of the adsorption tower and the regeneration tower, and a third valve is provided on the third pipeline.

2. The dewatering device with a variable regeneration process according to claim 1, characterized in that: An electric heater is also installed on the second pipeline.

3. The dewatering device with a variable regeneration process according to claim 2, characterized in that: A regeneration gas compressor is provided between the second valve and the electric heater.

4. The dewatering device with a variable regeneration process according to claim 1, characterized in that: The main exhaust pipe is equipped with an outlet filter.

5. A dewatering device with a variable regeneration process according to claim 4, characterized in that: The outlet end of the third pipeline is located on the main exhaust pipe after the outlet filter.

6. The dewatering device with a variable regeneration process according to claim 1, characterized in that: The adsorption tower and the regeneration tower are connected to the regeneration gas separator via a fourth pipeline, and an air cooler is installed on the fourth pipeline.

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