Desulfurization pre-purification device for natural gas

Abstract

The utility model belongs to the technical field of natural gas desulfurization, and particularly relates to a desulfurization pre-purification device for natural gas, which comprises a bottom plate, a pretreatment mechanism is arranged on one side above the bottom plate, and a sedimentation cleaning mechanism is arranged on one side of the pretreatment mechanism. By arranging the pretreatment mechanism, gas is effectively kept dry, a rotary stirring assembly is driven to rotate through a driving motor arranged on an end cover on one side of a stirring barrel, the gas in the stirring barrel is stirred, primary drying is conducted through a first drying plate installed in the stirring barrel, and when the gas enters a desulfurization tower through a gas outlet pipe, the gas is dried through a second drying plate installed in the stirring barrel; gas is desulfurized through the high-pressure desulfurization spray pipe mounted in the desulfurization tower, the gas is secondarily dried through the drying assembly mounted in the desulfurization tower, the drying effect is guaranteed, meanwhile, the gas desulfurization efficiency is improved, and therefore the dryness of natural gas can be guaranteed, the overall working efficiency is improved, and use is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of natural gas desulfurization, and in particular relates to a desulfurization pre-purification device for natural gas. Background Art

[0002] Natural gas is a recognized clean, efficient, high-quality energy source, and is being widely used in industrial and civil fields such as chemical industry, electricity, and urban gas. However, natural gas generally contains a small amount of hydrogen sulfide gas, and hydrogen sulfide forms a weak acid when it meets water. The presence of weak acid can cause corrosion of steel equipment and pipelines. In addition, hydrogen sulfide is a toxic gas. The exhaust gas produced after the combustion of natural gas will contain sulfides, which will also pollute the environment and endanger human health.

[0003] In the existing related technologies, the desulfurized gas enters the sedimentation treatment box and is further processed by the cleaning structure, which cannot effectively keep the gas dry. Therefore, it is urgent to design a natural gas desulfurization pre-purification device to deal with these problems. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model discloses a desulfurization pre-purification device for natural gas.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A desulfurization pre-purification device for natural gas comprises a bottom plate, a pretreatment mechanism is arranged on one side above the bottom plate, and a sedimentation cleaning mechanism is arranged on one side of the pretreatment mechanism.

[0007] The pretreatment mechanism includes a frame arranged above the bottom plate, a mixing drum is installed above the frame, an air inlet pipe is vertically installed above the mixing drum, an end cover is installed on one side of the mixing drum, a drive motor is installed on the end cover, a rotating stirring assembly is installed on the power end of the drive motor, a first drying plate is installed on the other side of the mixing drum, an air outlet pipe is installed on the mixing drum, a desulfurization tower is arranged on one side of the frame, a drying assembly is installed in the desulfurization tower, and a high-pressure desulfurization nozzle is installed on the circumference of the inner wall of the desulfurization tower.

[0008] Preferably, the sedimentation and cleaning mechanism includes a sedimentation treatment box arranged on one side of the pretreatment mechanism, a first connecting pipe is installed on one side of the sedimentation treatment box, a cleaning liquid assembly is arranged on the other side of the sedimentation treatment box, a pump body is installed on the rear side of the sedimentation treatment box, a desulfurization liquid assembly is installed on one side of the pump body, a first electromagnetic one-way switch is arranged on the desulfurization liquid assembly, a discharge pipe is arranged on the sedimentation treatment box, a second electromagnetic one-way switch is installed on the discharge pipe, and a discharge drying screen is installed on the inside of the discharge pipe.

[0009] Preferably, the rotary stirring assembly comprises a rotary rod arranged at the power end of the driving motor, a stirring blade is installed on the outer surface of the rotary rod, and a grate hole is arranged on the stirring blade.

[0010] Preferably, the drying assembly comprises a second drying plate arranged in the desulfurization tower, and a filter screen is arranged below the second drying plate.

[0011] Preferably, the cleaning liquid assembly comprises a cleaning liquid tank arranged on the other side of the sedimentation treatment tank, and a conduit nozzle is arranged on the cleaning liquid tank.

[0012] Preferably, the desulfurization liquid assembly comprises a desulfurization liquid tank arranged on one side of the pump body, and a desulfurization liquid pipe is installed on the desulfurization liquid tank.

[0013] The beneficial effects are:

[0014] The utility model discloses a desulfurization pre-purification device for natural gas. The pretreatment mechanism is used to effectively keep the gas dry. The driving motor arranged on the end cover on one side of the mixing drum drives the rotating stirring component to rotate, stirs the gas in the mixing drum, and performs primary drying through a first drying plate installed in the mixing drum. When the gas enters the desulfurization tower through the gas outlet pipe, the gas is desulfurized through the high-pressure desulfurization nozzle installed in the desulfurization tower, and the gas is dried for a second time through the drying component installed in the desulfurization tower, thereby ensuring the drying effect and increasing the desulfurization efficiency of the gas, thereby ensuring the dryness of the natural gas, enhancing the overall work efficiency, and being easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the shaft side structure of the utility model;

[0016] Figure 2 It is a front view structural schematic diagram of the utility model;

[0017] Figure 3 It is a front view cross-sectional structural schematic diagram of the utility model;

[0018] Figure 4 It is a first structural schematic diagram of the utility model;

[0019] Figure 5 It is a second structural schematic diagram of the utility model;

[0020] Figure 6 It is a schematic diagram of the stirring blade structure of the utility model.

[0021] In the figure: 1. bottom plate;

[0022] 2. Pretreatment mechanism; 201. Frame; 202. Mixing drum; 203. Air inlet pipe; 204. End cover; 205. Driving motor; 2051. Rotating rod; 2052. Mixing blade; 2053. Grate hole; 206. First drying plate; 2061. Air outlet pipe; 207. Desulfurization tower; 208. Second drying plate; 2081. Filter; 209. High-pressure desulfurization nozzle;

[0023] 3. Sedimentation and cleaning mechanism; 301. Sedimentation treatment box; 302. First connecting pipe; 303. Cleaning liquid tank; 304. Catheter nozzle; 305. Pump body; 306. Desulfurization liquid tank; 307. Desulfurization liquid pipe; 308. First electromagnetic one-way switch; 309. Discharge pipe; 310. Second electromagnetic one-way switch; 311. Discharge drying screen. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention; the terms "first", "second" and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Reference Figure 1-6 The utility model provides an embodiment: a natural gas desulfurization pre-purification device, comprising a bottom plate 1, a pretreatment mechanism 2 is arranged on one side above the bottom plate 1, and a sedimentation cleaning mechanism 3 is arranged on one side of the pretreatment mechanism 2.

[0028] In this embodiment: the pretreatment mechanism 2 includes a frame 201 arranged above the bottom plate 1, a mixing drum 202 is installed above the frame 201, an air inlet pipe 203 is vertically installed above the mixing drum 202, an end cover 204 is installed on one side of the mixing drum 202, and an anti-corrosion material is installed on the inner wall of the mixing drum 202. A driving motor 205 is installed on the end cover 204, and a rotating stirring assembly is installed on the power end of the driving motor 205. A first drying plate 206 is installed on the other side of the mixing drum 202, and the first drying plate 206 is used for the initial dehydration and drying of the natural gas in the mixing drum 202. An air outlet pipe 2061 is installed on the mixing drum 202, a desulfurization tower 207 is arranged on one side of the frame 201, a drying assembly is installed in the desulfurization tower 207, and a high-pressure desulfurization nozzle 209 is installed on the inner wall circumference of the desulfurization tower 207. The high-pressure desulfurization nozzle 209 is used to desulfurize sulfur-containing substances in natural gas. The rotating stirring assembly includes a rotating rod 2051 arranged at the power end of the driving motor 205, and a stirring blade 2052 is installed on the outer surface of the rotating rod 2051. An anti-corrosion scraper is installed on one side of the stirring blade 2052, and the anti-corrosion scraper is used to scrape sulfur-containing substances on the inner wall of the stirring drum 202. The stirring blade 2052 is provided with a grate hole 2053. The drying assembly includes a second drying plate 208 arranged in the desulfurization tower 207, and a filter screen 2081 is arranged below the second drying plate 208. The drying assembly is used to filter and dry the natural gas in the desulfurization tower 207.

[0029] In this embodiment: the sedimentation cleaning mechanism 3 includes a sedimentation treatment box 301 arranged on one side of the pretreatment mechanism 2, and a first connecting pipe 302 is installed on one side of the sedimentation treatment box 301, and a material guide valve is installed in the first connecting pipe 302. A cleaning liquid assembly is arranged on the other side of the sedimentation treatment box 301, and a pump body 305 is installed on the rear side of the sedimentation treatment box 301. The pump body 305 is a first liquid pump, which is used to extract the desulfurized liquid after sedimentation in the sedimentation treatment box 301. A desulfurized liquid assembly is installed on one side of the pump body 305, and a first electromagnetic one-way switch 308 is arranged on the desulfurized liquid assembly. A discharge pipe 309 is arranged on the sedimentation treatment box 301, and a second electromagnetic one-way switch 310 is installed on the discharge pipe 309. A discharge drying screen 311 is installed inside the discharge pipe 309. The cleaning liquid assembly includes a cleaning liquid tank 303 arranged on the other side of the sedimentation treatment box 301, and a conduit nozzle 304 is arranged on the cleaning liquid tank 303. A liquid pump is installed inside the cleaning liquid tank 303. The cleaning liquid assembly is used to clean the inside of the sedimentation treatment tank 301. The desulfurization liquid assembly includes a desulfurization liquid tank 306 arranged on one side of the pump body 305, and the pump body 305 is connected to the desulfurization liquid tank 306 to form a desulfurization liquid circulation. A desulfurization liquid pipe 307 is installed on the desulfurization liquid tank 306. A circulating liquid pump is arranged in the desulfurization liquid tank 306 to extract the desulfurization liquid inside the desulfurization liquid tank 306 into the desulfurization liquid pipe 307. The desulfurization liquid pipe 307 is connected to the high-pressure desulfurization nozzle 209.

[0030] Working principle: When in use, firstly, the pre-purified natural gas is passed through the air inlet pipe 203 and enters the mixing drum 202, and the driving motor 205 is started to drive the rotating rod 2051, the stirring blade 2052, and the grate hole 2053 to rotate slowly, and the impurities in the natural gas are cleaned by rotation, and then the natural gas is guided down through the first drying plate 206 and the air outlet pipe 2061 to enter the desulfurization tower 207, and the liquid pump installed inside the desulfurization liquid tank 306 is started to flow the desulfurization liquid into the high-pressure desulfurization nozzle 209 through the desulfurization liquid pipe 307, and the natural gas in the desulfurization tower 207 is subjected to adsorption desulfurization treatment through the high-pressure desulfurization nozzle 209. After a period of desulfurization, the second drying plate 208 and the filter screen 2081 are treated. After that, after the guide valve installed inside the first connecting pipe 302 is opened, the natural gas and desulfurized liquid enter the sedimentation treatment box 301, and the pump body 305 is started to draw the desulfurized liquid that has been settled in the sedimentation treatment box 301 into the desulfurized liquid tank 306, so that the desulfurized liquid forms a circulation, and the natural gas passes through the discharge drying mesh plate 311 installed on the inner side of the discharge pipe 309, and is discharged after being dried. The conduit nozzle 304 is opened to draw liquid from the inside of the cleaning liquid tank 303, and spray it from one end of the conduit nozzle 304 into the inside of the sedimentation treatment box 301. The liquid in the cleaning liquid tank 303 can perform different treatments on the inside of the sedimentation treatment box 301, thereby improving the overall purification effect and improving the environmental protection performance.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A desulfurization pre-purification device for natural gas, characterized in that: It comprises a bottom plate (1), a pretreatment mechanism (2) is arranged on one side above the bottom plate (1), and a sedimentation and cleaning mechanism (3) is arranged on one side of the pretreatment mechanism (2); The pretreatment mechanism (2) comprises a frame (201) arranged above the bottom plate (1), a mixing drum (202) is installed above the frame (201), an air inlet pipe (203) is vertically installed above the mixing drum (202), an end cover (204) is installed on one side of the mixing drum (202), a driving motor (205) is installed on the end cover (204), a rotating stirring component is installed on the power end of the driving motor (205), a first drying plate (206) is installed on the other side of the mixing drum (202), an air outlet pipe (2061) is installed on the mixing drum (202), a desulfurization tower (207) is arranged on one side of the frame (201), a drying component is installed in the desulfurization tower (207), and a high-pressure desulfurization nozzle (209) is installed on the circumference of the inner wall of the desulfurization tower (207).

2. A natural gas desulfurization pre-purification device according to claim 1, characterized in that: The sedimentation and cleaning mechanism (3) comprises a sedimentation treatment box (301) arranged on one side of the pretreatment mechanism (2), a first connecting pipe (302) being installed on one side of the sedimentation treatment box (301), a cleaning liquid assembly being installed on the other side of the sedimentation treatment box (301), a pump body (305) being installed on the rear side of the sedimentation treatment box (301), a desulfurization liquid assembly being installed on one side of the pump body (305), a first electromagnetic one-way switch (308) being installed on the desulfurization liquid assembly, a discharge pipe (309) being installed on the discharge pipe (309), a second electromagnetic one-way switch (310) being installed on the discharge pipe (309), and a discharge drying screen (311) being installed on the inner side of the discharge pipe (309).

3. A natural gas desulfurization pre-purification device according to claim 1, characterized in that: The rotary stirring assembly comprises a rotating rod (2051) arranged at the power end of the driving motor (205), a stirring blade (2052) is installed on the outer surface of the rotating rod (2051), and a grate hole (2053) is arranged on the stirring blade (2052).

4. A natural gas desulfurization pre-purification device according to claim 1, characterized in that: The drying assembly comprises a second drying plate (208) disposed in the desulfurization tower (207), and a filter screen (2081) is disposed below the second drying plate (208).

5. A natural gas desulfurization pre-purification device according to claim 2, characterized in that: The cleaning liquid assembly comprises a cleaning liquid tank (303) arranged on the other side of the sedimentation treatment tank (301), and a conduit nozzle (304) is arranged on the cleaning liquid tank (303).

6. A natural gas desulfurization pre-purification device according to claim 2, characterized in that: The desulfurization liquid component comprises a desulfurization liquid tank (306) arranged on one side of the pump body (305), and a desulfurization liquid pipe (307) is installed on the desulfurization liquid tank (306).

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