A minimal device for gas drying and adsorption

Abstract

The utility model discloses a kind of extremely simple devices for gas drying and adsorption, belong to gas purification technical field, including first drying and adsorption barrel, second drying and adsorption barrel and four-way ball valve, four-way ball valve is equipped with flow-through mouth A, flow-through mouth B, flow-through mouth C and flow-through mouth D, the input end of the first drying and adsorption barrel is connected with flow-through mouth A, the input end of the second drying and adsorption barrel is connected with flow-through mouth B, the output end of the first drying and adsorption barrel and the output end of second drying and adsorption barrel are connected with discharge pipeline;When first drying and adsorption barrel begins to adsorb work, second drying and adsorption barrel is heating state, internal adsorption saturated moisture is heated, and is discharged to atmosphere by flow limiting sheet;When first drying and adsorption barrel adsorption saturation, four-way valve switches, second drying and adsorption barrel begins to adsorb work, first drying and adsorption barrel heating state, internal adsorption saturated moisture is heated, and is discharged to atmosphere by flow limiting sheet;Overall simple structure, convenient operation.

Description

Technical Field

[0001] This utility model belongs to the field of gas purification technology, and in particular relates to a very simple device for gas drying and adsorption. Background Technology

[0002] In industrial production, inert gases (such as nitrogen, argon, and helium) and hydrogen are widely used in key areas such as electronics manufacturing, chemical synthesis, energy storage, and metal processing due to their unique physicochemical properties. The purity of these gases, especially their moisture content, has a decisive impact on the safety of the production process, product quality, and equipment lifespan. Currently, industrial gas drying mainly relies on adsorption methods. To achieve continuous operation, drying systems generally adopt a dual-tower switching mode, where one set of adsorption tanks is in operation while the other is in regeneration mode, with the two sets operating alternately periodically.

[0003] However, existing dual-tower drying devices are relatively complex and have the following drawbacks:

[0004] A. Multi-valve coordinated control: In order to achieve gas path switching, the system needs to be equipped with a large number of independent valves to control the raw material gas inlet, drying gas outlet, regeneration purge gas inlet, wet waste gas exhaust, etc. The large number of valves not only increases the procurement cost, but also increases the risk of leakage. Moreover, the maintenance cost of multiple valves is high, and the failure of one valve will directly lead to the shutdown of the entire system.

[0005] B. Complex pipeline connections: The layout of multiple valves results in a complex pipeline system, with multiple gas flows such as raw material gas, drying gas, regeneration gas, and waste gas needing to be connected to the two adsorption tanks through different pipelines. Utility Model Content

[0006] In view of the above situation and to overcome the defects of the prior art, this utility model provides a simplified device for gas drying and adsorption, which at least solves some of the above-mentioned technical problems.

[0007] The technical solution adopted by this utility model is as follows: A simplified device for gas drying and adsorption includes a first drying and adsorption barrel, a second drying and adsorption barrel, and a four-way ball valve. The four-way ball valve has four flow ports, namely flow port A, flow port B, flow port C, and flow port D. The input end of the first drying and adsorption barrel is connected to flow port A, the input end of the second drying and adsorption barrel is connected to flow port B, and the output ends of the first drying and adsorption barrel and the output ends of the second drying and adsorption barrel are connected to discharge pipes.

[0008] The four-way ball valve has a vent pipe (D) for discharging gas, and a check valve is connected to the vent pipe (D).

[0009] The output end of the one-way valve is connected to a flow restrictor; the flow restrictor controls the amount of vented gas, controlling the discharge of 5%-8% of the raw material gas flow rate entering the inlet pipe.

[0010] Wherein, the flow port C of the four-way ball valve is the inlet pipe of the raw material gas.

[0011] The first and second drying adsorption barrels are each equipped with heating wires for heating the first and second drying adsorption barrels.

[0012] The beneficial effects of this utility model after adopting the above structure are as follows:

[0013] When the first drying adsorption tank dries and adsorbs the gas, the second drying adsorption tank is in a heating state, heating the saturated water inside and discharging it into the atmosphere through the flow restrictor. When the first drying adsorption tank is saturated, the four-way valve switches, and the second drying adsorption tank starts adsorption. The first drying adsorption tank is in a heating state, heating the saturated water inside and discharging it into the atmosphere through the flow restrictor. The overall structure is simple and easy to operate. Attached Figure Description

[0014] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0015] Figure 1 This is a schematic diagram of the working structure of the first adsorption drying barrel of the simplified gas drying adsorption device proposed in this utility model.

[0016] Figure 2 This is a schematic diagram of the working structure of the second adsorption drying barrel of a simplified gas drying adsorption device proposed in this utility model.

[0017] In the attached diagram: 1. First drying adsorption tank, 2. Second drying adsorption tank, 3. Four-way ball valve, 4. Discharge pipe, 5. Vent pipe, 6. One-way valve, 7. Flow restrictor, 8. Heating wire. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0019] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0020] like Figure 1 and Figure 2 As shown, a simplified device for gas drying and adsorption includes a first drying and adsorption tank 1, a second drying and adsorption tank 2, and a four-way ball valve 3. The four-way ball valve 3 has four flow ports, namely flow port A, flow port B, flow port C, and flow port D. The input end of the first drying and adsorption tank 1 is connected to flow port A, and the input end of the second drying and adsorption tank 2 is connected to flow port B. The output ends of the first drying and adsorption tank 1 and the second drying and adsorption tank 2 are connected to an exhaust pipe 4.

[0021] The flow port D of the four-way ball valve 3 is connected to a vent pipe 5 for discharging gas, and a one-way valve 6 is connected to the vent pipe 5.

[0022] The output end of the one-way valve 6 is connected to a flow restrictor 7; the flow restrictor 7 controls the discharge of 5%-8% of the flow rate of the raw material gas entering the inlet pipe.

[0023] The flow port C of the four-way ball valve 3 is the inlet pipe of the raw material gas.

[0024] Heating wires 8 are installed on both the first drying adsorption tank 1 and the second drying adsorption tank 2 for heating the first drying adsorption tank 1 and the second drying adsorption tank 2.

[0025] The specific usage is as follows:

[0026] Initially, ports A and C of the four-way ball valve 3 are connected, and ports B and D are connected. The flow restrictor 7 controls the discharge of 5% of the raw material gas flow rate entering the inlet pipe. The raw material gas enters the first drying adsorption tank 1 through ports C and A of the four-way ball valve 3. While the first drying adsorption tank 1 is drying and adsorbing the raw material gas, the second drying adsorption tank 2 is in a heating state. 95% of the gas purified by the first drying adsorption tank 1 is discharged through the discharge pipe 4. At this time, the heating wire 8 in the second drying adsorption tank 2 heats the water saturated inside it, turning it into water vapor. 5% of the gas purified by the first drying adsorption tank 1 enters the second drying adsorption tank 2 from the output end of the second drying adsorption tank 2. The flowing gas discharges water vapor and other impurities through port D of the four-way ball valve 3 to the vent pipe 5, and then through the check valve 6 and the flow restrictor 7 to the atmosphere.

[0027] When the first drying adsorption tank 1 is saturated, the four-way valve switches, and the flow ports A and D in the four-way ball valve 3 are connected, as are the flow ports B and C. The raw material gas enters the second drying adsorption tank 2 through the flow ports C and B of the four-way ball valve 3. While the second drying adsorption tank 2 is drying and adsorbing the raw material gas, the first drying adsorption tank 1 is in a heated state. 95% of the gas purified by the second drying adsorption tank 2 is discharged through the discharge pipe 4. At this time, the heating wire 8 in the first drying adsorption tank 1 heats the water that is saturated inside, turning it into water vapor. 5% of the gas purified by the second drying adsorption tank 2 enters the first drying adsorption tank 1 from the output end of the first drying adsorption tank 1. The flowing gas discharges water vapor and other impurities through the flow port D of the four-way ball valve 3 to the vent pipe 5, and then through the check valve 6 and the flow restrictor 7 to the atmosphere.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents. In conclusion, if those skilled in the art, inspired by this description, design similar structural methods and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A simplified apparatus for gas drying and adsorption, characterized in that, It includes a first drying adsorption tank, a second drying adsorption tank, and a four-way ball valve. The four-way ball valve has four flow ports, namely flow port A, flow port B, flow port C, and flow port D. The input end of the first drying adsorption tank is connected to flow port A, the input end of the second drying adsorption tank is connected to flow port B, and the output ends of the first and second drying adsorption tanks are connected to discharge pipes.

2. The simplified apparatus for gas drying and adsorption according to claim 1, characterized in that, The flow port D of the four-way ball valve is connected to a vent pipe, and a one-way valve is connected to the vent pipe.

3. The simplified apparatus for gas drying and adsorption according to claim 2, characterized in that, The output end of the one-way valve is connected to a flow limiter.

4. The simplified apparatus for gas drying and adsorption according to claim 1, characterized in that, The flow port C of the four-way ball valve is the inlet pipe of the raw material gas.

5. The simplified apparatus for gas drying and adsorption according to claim 1, characterized in that, Heating wires are installed on both the first and second drying adsorption tanks.

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